EP3894205A2 - Dispositif à plusieurs entraînements pour fabriquer un produit de matériau d'emballage à partir d'un matériau de départ fibreux, procédé de fabrication d'un produit de matériau d'emballage et procédé d'élimination d'une obstruction de matériau d'emballage - Google Patents

Dispositif à plusieurs entraînements pour fabriquer un produit de matériau d'emballage à partir d'un matériau de départ fibreux, procédé de fabrication d'un produit de matériau d'emballage et procédé d'élimination d'une obstruction de matériau d'emballage

Info

Publication number
EP3894205A2
EP3894205A2 EP19820741.7A EP19820741A EP3894205A2 EP 3894205 A2 EP3894205 A2 EP 3894205A2 EP 19820741 A EP19820741 A EP 19820741A EP 3894205 A2 EP3894205 A2 EP 3894205A2
Authority
EP
European Patent Office
Prior art keywords
packaging material
cutting
feed
strand
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19820741.7A
Other languages
German (de)
English (en)
Inventor
Marco Schwarberg
Bastian Schalk
Vitali KREBS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Original Assignee
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH filed Critical Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Priority to EP22154770.6A priority Critical patent/EP4026690A3/fr
Publication of EP3894205A2 publication Critical patent/EP3894205A2/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional [3D] articles
    • B31D5/0039—Multiple-step processes for making three-dimensional [3D] articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional [3D] articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0052—Multiple-step processes for making three-dimensional [3D] articles for making dunnage or cushion pads including crumpling flat material involving rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0076—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads involving particular machinery details
    • B31D2205/0088—Control means

Definitions

  • Multi-drive device for manufacturing a packaging material product from a fiber raw material, method for manufacturing a packaging material product and method for removing packaging material blockages
  • the invention relates to a device for producing a packaging material product from a fiber starting material, such as a single or multi-layer paper web or a corrugated cardboard web, in particular from recycled paper.
  • the invention also relates to a method for manufacturing a packaging material product and a method for removing packaging material blockages in an apparatus for manufacturing a packaging material product.
  • Devices of the generic type are set up, for example, in logistics centers as a mobile unit that can be moved around, so that length-packed items are packed when an object is packed
  • a packaging material strand can in particular mean a paper cushion strand which is obtained from a space-saving single or multi-layer paper web compared to the paper cushion strand, in particular from recycled paper, in the form of a material web roll or a zigzag-folded stack of packaging material, which is also referred to as a fanfold stack .
  • the paper web is pulled off a roll or a stack of leporello and shaped in such a way that air pockets form, which cause damping between the object to be packaged and the outer packaging.
  • a packaging material product can in particular be understood to mean a paper cushion product, in particular of a certain length, that has been separated from a paper cushion strand.
  • a packaging material strand can also be understood to mean, in particular, a corrugated cardboard web.
  • the packaging material product can be a corrugated cardboard web section that has been separated from the corrugated cardboard web.
  • Corrugated cardboard web sections are also preferably made from recycled paper for sustainability reasons.
  • a device for manufacturing a packaging material product is known for example from DE 697 35 564 T2. In it, a paper web is formed into a three-dimensional packaging material strand via a forming station, and the packaging material strand is given a certain dimensional stability via a pair of deformation wheels. Then, with a scissor-cut arrangement, packaging material products are separated from the pair of deformation wheels, which are then removed from the device via a safety delivery chute. Conveyor wheels can be provided in the safety slide for the removal of the packaging material products.
  • a disadvantage of such devices is that the scissor-cut arrangement is, on the one hand, susceptible to wear and, on the other hand, causes the formation of cutting chips. Furthermore, it has been shown that the packaging material strand and the packaging material product can be clamped between the cooperating cutting edges of the scissor cutting arrangement and can thereby cause the device to become blocked. Another disadvantage is that the wear of the scissor-cut arrangement requires high exchange rates of the cutting edges in order to ensure a reliable separation of the packaging material.
  • DE 10 2014 016 874 Ai proposes a generic device for manufacturing a packaging material product.
  • This comprises a rotary cutter and in each case a pair of feed wheel upstream and downstream of the rotary cutter.
  • the risk of blockages occurring in the device could be reduced, in particular by a higher conveying speed of the pair of feed wheels downstream of the rotary cutter in the conveying direction and by a rotary cutter with a stripping device.
  • the complexity of the generic device is disadvantageous.
  • the use of a rotary cutter with a stripping device entails great manufacturing and maintenance costs.
  • the known concept involves an increased development effort when developing new devices for certain paper materials and certain forms of a packaging material product.
  • the forces required to drive the rotary cutter and the conveyor device must be taken into account when designing the device.
  • the rotating parts of the scraper and rotary cutter offer dust-collecting surfaces on the one hand and are susceptible to blockages due to dust deposits on the other.
  • the elastic scraper also threatens to become porous or lose elasticity if there is too much dust, which can have a negative impact on the risk of dust formation.
  • a further disadvantage is that if paper jam occurs despite the proposed measures, this can only be removed by manual intervention by an operator, which on the one hand can increase the time required for removing jams and on the other hand increases the requirements for safety regulations for the device brings itself.
  • the device for producing a packaging material product from a fiber starting material comprises a cutting device for separating the packaging material product from a packaging material line, such as a web of cardboard or in Device made of three-dimensional paper cushion strand formed from the fiber starting material.
  • the device according to the invention comprises a feed wheel pair associated with the cutting device in the conveying direction F upstream for conveying the strand of packaging material and a pair of discharge wheel arranged downstream in the conveying direction for conveying the Packaging material strand.
  • the feed wheel pair and the discharge wheel pair are each assigned a separate drive for independently driving and / or braking at least one wheel of the respective wheel pair.
  • the packaging material product is made in particular from recycled paper.
  • Recycled paper is, in particular, paper materials with a low proportion (less than 50%) of fresh fiber paper material.
  • paper materials containing 70% to 100% waste paper are preferred.
  • the recycled paper in the sense of this invention should be paper material which can have a tensile strength index along the machine direction of at most 90 Nm / g, preferably a tensile strength of 15 Nm / g to 60 Nm / g and a tensile strength index across the machine direction of at most 60 Nm / g can have, preferably a tensile strength of 5 Nm / g to 40 Nm / g.
  • a standard DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used to determine the tensile strength or the tensile strength index. Additionally or alternatively, a recycled paper property or waste paper property can be characterized by the so-called burst resistance.
  • a material in this sense is recycled paper with a burst index of at most 3.0 kPa * m A 2 / g, preferably with a burst index of 0.8 kPa * m A 2 / g to 2.5 kPa * m A 2 / g.
  • the DIN EN ISO 2758 standard is used to determine the burst index.
  • the packaging material has a mass per unit area of in particular 40 g / m A 2 to max. 140 g / m A 2.
  • the fiber starting material can in particular be a single or multi-layer paper web or a corrugated cardboard web. Furthermore, the fiber starting material can be present as a roll of material web or as a zigzag-folded stack of packaging material, which is also referred to as a leporello stack.
  • an upholstery material production device is to be understood in particular as a device in which a three-dimensional upholstery strand, in particular a three-dimensional paper upholstery strand, is produced from a single or multi-layer web of starting material, in particular from a single or multi-layer paper web.
  • Assigning a separate drive means in particular that at least two drives, in particular in the form of electric motors, are provided, one of which drives the feed wheel pair and the other the discharge wheel pair drives.
  • the presence of one drive each for the feed wheel pair and the discharge wheel pair enables one wheel of a feed wheel pair to be driven while the other wheel is braked, in particular stopped.
  • the conveyor wheel pairs can thereby preferably be driven at different speeds, torques and / or directions of rotation. It is in particular sufficient that one wheel of a pair of wheels is driven and the other pair of wheels is driven indirectly via the driven pair of wheels.
  • the device is preferably a device for producing a packaging material product in the form of a three-dimensional paper cushion product.
  • a single or multi-layer paper web is preferably formed into a paper cushion strand and the paper cushion product is then separated from the paper cushion strand via the cutting device.
  • a forming device is preferably provided for the forming into the paper cushion strand, which is preferably arranged upstream of the pair of feed wheels in the conveying direction.
  • the shaping device can, for example, be a funnel-shaped wall section of the device, which tapers in the conveying direction towards the pair of feed wheels.
  • a separate shaping device such as a shaping hopper in the conveying direction upstream of the feed wheel pair, can be attached to the device and / or to the funnel-shaped wall section of the device.
  • a shaping device can be provided downstream of the cutting device in the conveying direction.
  • a shaping device arranged downstream of the cutting device can be formed, for example, by a funnel-shaped wall section of the device, which tapers in the conveying direction.
  • a shaping device arranged downstream of the cutting device is preferably arranged between the cutting device and the discharge wheel pair, in particular adjoins the discharge wheel pair in the conveying direction.
  • the pair of feed wheels and / or the pair of discharge wheels detects the strand of packaging material between two conveyor wheels and conveys the strand of packaging material along or against the conveying direction.
  • the pair of feed wheels and / or the pair of discharge wheels conveys the strand of packaging material along or counter to a passage direction defined by a common tangent to a respective outer circumference of the conveyor wheels.
  • the feed wheels of the feed wheel pair and / or the discharge wheel pair are braced against one another.
  • the feed wheels of the feed wheel pair and / or of the feed wheel pair are preferably with a force of at least 1 Newton, 10 Newton, 50 Newton, 100 Newton or 150 Newton, of at least 250 Newton, 350 Newton or 450 Newton or of at least 550 Newton, 700 Newton or 900 Newtons braced against each other.
  • the distance between the wheel axles of the feed wheels of one pair of wheels is undersized such that the wheels are elastically preloaded against one another.
  • the wheel axes of at least one, preferably both pairs of feed wheels each run parallel to one another.
  • the wheel axles run at least one, preferably both pairs of conveyor wheels, each transversely, preferably orthogonally, to the direction of conveyance or a direction of passage defined by a common tangent to a respective outer circumference of the conveyor wheels and / or along a plane which is transversely, preferably orthogonally, to Direction of conveyance or a through direction defined by a common tangent in a respective outer circumference of the conveying wheels.
  • the feed wheel pairs are in particular aligned with one another along a plane which has a wheel axis of a feed wheel pair, preferably both wheel axes of both feed wheel pairs, as a normal vector.
  • At least one wheel of at least one pair of front wheels comprises an elastically deformable pick-up area, the wheel preferably being formed by an elastomer body, such as a PU foam body, or having a corresponding outer coating
  • At least one feed wheel of the feed wheel pair and / or of the discharge wheel pair is coupled via a gear, preferably via a worm gear, to the drive assigned to the at least one feed wheel.
  • the transmission preferably reduces a movement amplitude of the drive to a movement amplitude of the at least one feed wheel, in particular with a reduction ratio of 3 to 1 to 25 to 1, preferably of approximately 5 to 1.
  • the drives are driven and / or braked independently of one another, in particular via a higher-level control unit, in such a way that the pair of feed wheels and the pair of discharge wheels tension the packaging material strand before the packaging material product is separated.
  • the device has a control unit which drives the two drives, in particular in the form of electric motors, independently of one another.
  • the feed wheel pair and the removal wheel pair are particularly preferably driven independently of one another in such a way that they tension the packaging material strand.
  • the higher-level control unit can be designed, in particular programmed, to drive the feed wheel pair, the discharge wheel pair and / or the cutting device according to the method according to the second aspect of the present invention.
  • Tensioning can be achieved, for example, in that the pair of discharge wheels drives the packaging material strand more strongly than the pair of feed wheels before being cut off.
  • the greater drive can be due to a higher conveying speed, which the conveying wheel pair communicates to the strand of packaging material.
  • the stronger driving can be in a greater conveying force which is communicated to the packaging material strand and / or in a larger rotational movement of at least one driven feed wheel of the feed wheel pair compared to the rotational movement of at least one driven feed wheel of the feed wheel pair.
  • the pairs of conveyor wheels are particularly preferably braked, in particular stopped, before the packaging material strand is tensioned. In particular, excessive slippage and the associated dust formation can thereby be avoided.
  • conveyor wheel pairs are particularly advantageous for the present invention because it can reduce the friction between the packaging material strand and the conveyor, in particular slippage, and in particular can reduce the dust formation when manufacturing packaging material products.
  • a further advantage when using conveyor wheel pairs is that the tensioning of the packaging material strand can take place with less dust formation via the conveyor wheel pairs, since the conveyor wheels which support the Keep packaging material strands moving with the packaging material strand so that abrasion can be reduced.
  • the drives are driven and / or braked independently of one another, in particular via a higher-level control unit, in such a way that the pair of discharge wheels is driven in the opposite direction to the conveying direction when packaging material becomes blocked.
  • the higher-level control unit can be designed, in particular programmed, to drive the feed wheel pair, the discharge wheel pair and / or the cutting device according to the method according to the third aspect of the present invention.
  • a cutting edge of the cutting device is guided such that it cuts through the packaging material strand translationally in the cutting engagement transversely to the conveying direction.
  • the cutting device preferably comprises a guide which guides the cutting edge in such a way that it translationally cuts through the material cushion strand in the cutting engagement.
  • the cutting intervention means in particular the point in time at which the cutting edge dips into the strand of material.
  • the cutting edge particularly preferably plunges into the material strand over its entire depth. This is to be understood in particular to mean that the cutting edge runs straight in depth, in particular the tip of the cutting edge extends in depth at a cutting direction height.
  • the depth direction is to be understood in particular as the direction which runs transversely, in particular orthogonally, to the cutting direction and to the conveying direction.
  • Tearing occurs in particular when a tension is applied to the strand of material before it is cut.
  • the separation can be achieved simply by applying a high voltage, due to which the strand of material is severed.
  • Cutting with one cutting edge increases dust, which should be avoided especially for safety and maintenance reasons.
  • the packaging material strand can tear to a certain extent. For example, tearing occurs if the strand of packaging material is put under tension before being cut off and the cutting edge, such as in the case of scissors cutting, plunges into the strand of material from one side and cuts the material in the depth direction via the cutting process.
  • the tension in the strand of packaging material can lead to tearing of the section that has not yet been cut. Because the cutting edge plunges into the depth direction of the material strand in the depth direction of the material strand as far as possible, the formation of dust in particular can be reduced.
  • the material strand Due to the translational severing of the packaging material strand in a cutting engagement transverse to the conveying direction, the material strand is subjected in particular to a cutting force transversely to the conveying direction.
  • This cutting force can preferably, particularly before the actual severing, cause the strand of packaging material to be stretched between the pairs of conveyor wheels.
  • the cutting edge is designed and / or guided in such a way that it penetrates uniformly, in particular at the same time, over the entire depth of the paper cushioning strand, the cutting force applied to the paper cushioning strand before actually severing it, and thus in particular the tension of the Packaging material strand can be increased.
  • a translationally guided cutting edge transversely to the conveying direction has the advantage that the force applied acts transversely to the conveying direction, preferably orthogonally to the conveying direction, on the packaging material strand and clamps it between the pairs of conveying wheels.
  • the device comprises a conveying channel which extends at least at the conveying direction height of the cutting device in the conveying direction and is delimited by a boundary wall. Furthermore, the device comprises a gap formed in the boundary wall, which is designed such that a cutting edge of the cutting device can move into and out of the gap without contact.
  • the gap is preferably formed at the conveying direction level of the cutting device.
  • the gap is particularly preferably designed such that the cutting edge Packaging material strand in cutting engagement, translational cutting, in particular purely translational, from a cutting start position to a cutting end position, can and can move into and out of the gap without contact, in particular the cutting tip of the cutting edge can leave the conveying channel without contact.
  • the conveying direction height of the cutting device means in particular the height in the conveying direction at which the cutting edge, in particular the cutting tip, of the cutting device is in cutting engagement with the strand of packaging material.
  • the cutting edge preferably moves purely translationally in the cutting direction at the conveying direction height of the cutting device, the cutting direction preferably running transversely, in particular orthogonally, to the conveying direction.
  • the conveying channel at the conveying direction level of the cutting device extends in the conveying direction, in particular downstream and upstream of the cutting edge, particularly preferably at least up to the pairs of conveying wheels.
  • the feed channel is delimited in particular by the boundary wall.
  • the boundary wall preferably surrounds the conveying channel upstream and / or downstream of the cutting device.
  • the conveying channel is open in the conveying direction and delimited, in particular enclosed, by the boundary wall in the cutting direction and in the depth of the device.
  • the boundary wall can have opposite wall sections in the cutting direction and / or in the depth direction, which delimit the conveying channel.
  • the delivery channel does not necessarily have to be enclosed by the boundary wall. It can, for example, also be formed by two mutually opposite, in particular parallel, changes in the cutting direction or in the depth direction, while the conveying channel is open in the other direction.
  • the conveying duct is particularly preferably delimited by opposing, preferably parallel, upper and lower wall sections which delimit the conveying duct in the depth direction.
  • the upper and lower wall sections extend in the conveying direction between the pairs of feed wheels, in particular at least from the pair of feed wheels to the pair of discharge wheels.
  • the cutting edge 605 is preferably guided in the conveying direction over the upper and lower wall sections, in particular at the height of the cutting device, in particular when moving from a cutting start position to a cutting end position.
  • the conveying channel in the conveying direction upstream of the gap is delimited by an upstream wall section which has an upstream counter edge delimiting the gap in the conveying direction upstream.
  • the upstream counter edge has a minimum distance of at least 0.1 mm, 0.3 mm, 0.5 mm, 0.7 mm, 1.0 mm, 2 mm, 3 mm or 5 when the cutting edge is extended and retracted mm on.
  • the packaging material strand remains contact-free with respect to the upstream counter edge when the packaging material product is separated.
  • the upstream counter edge can preferably also form an abutting edge which supports the severing.
  • the cutting edge can preferably be spaced apart from the upstream counter edge in the conveying direction when entering and exiting the gap.
  • the distance is preferably 0.1 mm to 50 mm, 0.5 mm to 30 mm or 1.0 mm to 15 mm.
  • the distance between the cutting edge and the upstream counter edge in the conveying direction when entering and exiting the gap is particularly preferably constant, in particular over the entire travel path from a cutting start position to a cutting end position.
  • the cutting edge extends beyond the upstream counter edge when entering and leaving the gap, in particular in the cutting direction.
  • the cutting edge preferably extends 0.1 to 200 mm, 0.5 to 100 mm or 5.0 to 50 mm beyond the upstream counter edge.
  • the conveying channel is preferably delimited in the conveying direction downstream of the gap by a downstream wall section.
  • the downstream wall section preferably has a downstream counter edge delimiting the gap downstream in the conveying direction.
  • the cutting edge is spaced apart from the downstream counter edge in the conveying direction when entering and leaving the gap.
  • the distance is particularly preferably 0.1 mm to 200 mm, 0.5 mm to 100 mm or 5.0 mm to 50 mm.
  • the distance between the cutting edge and the is particularly preferred upstream counter edge in the conveying direction when entering and exiting the gap is constant, in particular over the entire travel path from a cutting start position to a cutting end position.
  • the cutting edge travels in the cutting direction beyond the downstream counter edge when entering and exiting the gap.
  • the cutting edge preferably extends 0.1 to 150 mm, 0.5 to 70 mm or 5.0 to 30 mm beyond the downstream counter edge.
  • the downstream counter edge is offset in the cutting direction with respect to the upstream counter edge.
  • the offset is preferably 0.1 mm to 200 mm, 0.1 mm to 100 mm, 0.1 mm to 50 mm, 0.5 mm to 30 mm or 5 mm to 10 mm.
  • the downstream counter edge and the upstream counter edge are offset from one another in such a way that the packaging material strand and / or the packaging material product remain contact-free with respect to the downstream wall section, in particular the downstream counter edge, when the packaging material product is separated.
  • the cutting edge moves out of the conveying channel when entering and exiting the gap.
  • the cutting edge preferably moves out of the conveying channel in such a way that dust and / or snippets which arise when being cut off are thrown out of the conveying channel.
  • the cutting edge can protrude from the conveying channel into a cutting end position by 0.1 to 150 mm, 0.5 to 70 mm or 5.0 to 30 mm.
  • At least one, preferably two, particularly preferably three, of the drives is controlled by a higher-level control unit, the higher-level control unit preferably exchanging data with drive-specific control subunits.
  • the Data exchange between the drive-specific control subunits and the higher-level control unit via a communication link in particular by means of bus technology, such as CAN bus technology.
  • the drives are electric motors, each with a stationary stator and a rotor movably mounted to it and a coil arrangement of the rotor or the stator which is supplied with an excitation current, the electric motor being free of an electrical contact coupling for transmitting the excitation current between the stator and the Is rotor and comprises a device for detecting the position of the rotor.
  • a second aspect of the present invention relates to a method for producing a packaging material product, in which a strand of packaging material, such as a corrugated cardboard web or a three-dimensional packaging material strand formed from a single or multi-layer paper web, in particular from recycled paper, is fed to a cutting device via a feed device.
  • the packaging material product is separated from the packaging material strand with the cutting device and conveyed away via a removal device.
  • the feed device and the removal device are driven and / or braked independently of one another in such a way that the packaging material strand is stretched between the conveyor devices.
  • the conveyor wheel pairs described above are particularly preferably used as conveyor devices.
  • the feed device before the packaging material product is cut off, the feed device is braked, in particular stopped, and the removal device is driven in the conveying direction via a predetermined path.
  • the feed device is driven in a direction opposite to the conveying direction, and the removal device is braked, in particular stopped, before the removal of the packaging material product.
  • the driving of the feed device and / or the removal device takes place before the separation of the packaging material product, preferably more slowly, in particular at least 50%, 60%, 70%, 80%, 90% or 95% slower than the conveying to and / or removing from the Cutting device.
  • the conveying device each has a driven conveying wheel, preferably each having a pair of conveying wheels, driving by a predetermined path by rotating the conveying wheel through a predetermined angle, preferably between 1 ° and 720 °, particularly preferably between 10 ° and 6o °.
  • the rotary movement of the conveying wheel takes place by driving the conveying wheel with a torque over a desired angle, preferably between 1 ° and 720 °, particularly preferably between 20 ° and 60 °, the desired angle being greater than the predetermined one Angle so that the feed wheel exerts a tensile force on the packaging material strand via the torque.
  • the desired angle is preferably established as a result of the severing of the packaging material product, the packaging material product preferably being conveyed upstream of the cutting device in the conveying direction and / or the remaining strand of packaging material being conveyed upstream of the cutting device in the conveying direction.
  • the conveying devices each have a driven feed wheel, preferably a respective pair of feed wheels, braking being effected by reducing the speed of the feed wheel and / or stopping by stopping the feed wheel.
  • the braked conveyor device is braked to such an extent that it pulls tensile forces of at least 10 Newton, 50 Newton or 150 Newton, preferably of at least 250 Newton, 350 Newton or 450 Newton, particularly preferably of at least 550 Newton, 700 Newton or 900 Newtons can be exposed without being moved over the entire, in particular without over 75%, 50% or 25% of the predetermined path of the driven device.
  • the strand of packaging material is so firmly secured by the conveying devices, in particular by two braced ones each
  • Conveyor wheels pinching the packaging material strand are held so that the packaging material strand is subjected to tensile forces of at least 10 Newton, 50 Newton, 100 Newton or 150 Newton, preferably of at least 250 Newton, 350 Newton or 450 Newton, particularly preferably of at least 550 Newton, 700 Newton or 900 Newton can without being pulled out of the conveyors.
  • the tension acting on the packaging material strand is preferably adapted to the strength of the packaging material strand in such a way that the packaging material product is only separated as a result of a cutting intervention with a cutting edge of the cutting device of the packaging material strand.
  • the tension is preferably matched to the cutting edge and the packaging material strand used in such a way that when cutting with a sharp cutting edge, the cutting is essentially carried out by cutting the packaging material strand, and / or when cutting with a blunt cutting edge, the cutting is carried out essentially by tearing .
  • the strand of packaging material is preferably subjected to a tensile stress index of 0.04 to 35 Nm / g, particularly preferably 0.75 to 6 Nm / g.
  • the standards DIN EN ISO 1924-2 or the standard DIN EN ISO 1924-3 can be used to calculate the tensile stress index, in particular based on the tensile strength index.
  • the preferred tension index can be achieved, in particular, when the packaging material strand is subjected to a preferred force between 1 Newton and 900 Newton or between 10 Newton and 900 Newton, in particular between 20 Newton and 150 Newton.
  • the preferred tensile stress index is achieved in particular under a force in this area, in particular with a width of the material of 36 cm and a mass per unit area of the paper cushion strand of 70 g / m 2 . It is clear that depending on the area-related mass and width of the material, the force can be adjusted to achieve the preferred tension index.
  • the tensile stress index With the range specified for the tensile stress index, it was possible in particular to significantly reduce the risk of the packaging material becoming blocked, because, due to the tension applied, the packaging material strand and / or the packaging material product are pulled away from the cutting edge of the cutting device after being cut off, and thus in particular also from possible ones Crevices in which the material can get caught, which could cause clogging. Furthermore, the tension applied to the material is small enough with such a tensile stress index in order to keep the formation of dust as small as possible during separation. In particular, in combination with the advantageous embodiments of the feed wheel pairs and the cutting device described above, the risk of dust formation and dust generation can be reduced at the same time.
  • a third aspect of the present invention relates to a method for removing packaging material blockages that occur during the manufacture of a Packaging material product arise, whereby when manufacturing a
  • Packaging material strand such as a corrugated cardboard web or a three-dimensional packaging material strand formed from a single or multi-layer paper web, in particular from recycled paper, is conveyed via a feed device in the conveying direction to a cutting device.
  • a feed device in the conveying direction to a cutting device.
  • the feed device is driven in the opposite direction to the conveying direction.
  • the third aspect of the present invention relates to a method for removing packaging material blockages that occur during the manufacture of a
  • Packaging material product according to the method according to the preamble and / or according to the characterizing part of the second aspect of the present invention.
  • the third aspect of the present invention can in particular be a method for eliminating
  • the third aspect of the present invention relates to a method for removing packaging material blockages that occur during the manufacture of a
  • Packaging material product arise, whereby to manufacture the
  • Packaging material product a packaging material strand fed via a feed device to a cutting device, the
  • the packaging material product is cut off from the packaging material strand with the cutting device and the packaging material product is conveyed away via a removal device.
  • a feed conveyor pair in front of the cutting device in the conveying direction is driven for feeding the packaging material strand.
  • a conveying wheel pair downstream of the cutting device in the conveying direction is driven to convey the packaging material product.
  • the feed device for removing packaging material blockages is driven via a predetermined path opposite to the conveying direction.
  • the removal device can be braked, in particular stopped.
  • the feeding device and / or the removal device are driven the removal of packaging material blockages more slowly, in particular at least 50%, 60%, 70%, 80%, 90% or 95% slower than the conveying to and / or conveying away from the cutting device.
  • the feed device in each case has a driven feed wheel, preferably a pair of feed wheels, wherein the driving takes place over a predetermined path by rotating the feed wheel over a predetermined angle, preferably between 1 ° and 720 °, particularly preferably between 10 ° and 6 ° .
  • the rotation of the Zu rawrades takes place in the direction opposite to the conveying direction by driving the conveyor wheel with a torque over a desired angle, preferably between i ° and 720 °, particularly preferably between 20 0 and 6o °, wherein the target angle is greater than the predetermined angle, so that the feed wheel exerts a tensile force on the packaging material strand via the torque.
  • the rotary movement of the discharge wheel in the conveying direction takes place by driving the conveying wheel with a torque over a desired angle, preferably between 1 ° and 720 °, particularly preferably between 20 ° and 60 °, the desired angle being greater than the predetermined angle, so that the feed wheel exerts a tensile force on the strand of packaging material via the torque.
  • the desired angle is preferably established as a result of the removal of the packaging material blockage, the packaging material product preferably being conveyed and / or tensioned in the conveying direction upstream of the cutting device and / or the remaining packaging material strand in the conveying direction upstream of the cutting device.
  • the cutting edge is checked before driving the feed device in a direction opposite to the conveying direction whether a cutting edge of the cutting device is in a cutting start position or in a cutting end position, the cutting edge, if it is in the cutting end position, in the cutting start position is proceeded.
  • it is checked whether there is a cutting edge in the conveying channel and, if it is in the conveying channel, the cutting edge is also moved out of the conveying channel.
  • a discharge device arranged downstream in the conveying direction is driven to remove the packaging material strand in the conveying direction, so that in the event of a previous successful separation of the packaging material product from the packaging material strand, the packaging material product is preferably conveyed away and in the event of a failure to do so , the packaging material strand is stretched so that the separation can be initiated.
  • the tension of the packaging material strand can take place according to one or more of the advantageous embodiments described in connection with the second aspect of the present invention.
  • the discharge device can be configured as a pair of discharge wheels and / or the feed device as a pair of feed wheels.
  • the discharge device can be driven further in the conveying direction, braked or stopped, while the feed device is driven in the opposite direction to the conveying direction to remove jams.
  • reliable jam removal can take place.
  • driving the feed device, the discharge device and / or the cutting device when removing jams is preferably slower, in particular at least 50%, 60%, 70%, 80%, 90% or 95% slower , as conveying and / or separating in the manufacture of the packaging material product.
  • the present invention relates to a method for producing a packaging material product from a fiber starting material, such as a single or multi-layer paper web or a corrugated cardboard web, in particular from recycled paper, which is carried out with the device according to the invention described above.
  • a fiber starting material such as a single or multi-layer paper web or a corrugated cardboard web, in particular from recycled paper
  • the method described in connection with the second aspect of the present invention can relate to a method for producing an upholstery material product.
  • the method described in connection with the third aspect of the present invention can relate to a method for removing packaging material blockages that occur during manufacture of a cushioning material product.
  • a cushion material product is to be understood in particular as a three-dimensional cushion strand formed from a single or multi-layer paper web, in particular a three-dimensional paper cushion strand.
  • a fourth aspect of the present invention relates to a packaging material, such as a paper cushion material strand or a corrugated cardboard web section, which is produced by, in particular by means of, a device according to the first aspect of the present invention.
  • the fourth aspect of the present invention relates to a packaging material that is produced according to a method according to the second and / or third aspect of the present invention.
  • the method according to the second and / or third aspect of the present invention can in particular be designed such that it can be carried out with the device according to the first aspect of the present invention.
  • the device according to the invention according to the first aspect of the present invention can in particular be structured such that the method according to the invention can be carried out according to the first and / or the second aspect of the present invention. Further advantages, effects and embodiments of the present invention are evident from the figures shown below. It shows:
  • Fig. L is a bottom view of a device according to the invention, wherein the lower and upper boundary wall to illustrate the individual components are removed and the cutting edge is in a cutting start position;
  • Fig. 2 shows the device of Fig. 1, the cutting edge in one
  • FIG. 3A shows the device from FIG. 1, with the cutting edge in one
  • FIG. 3B shows an enlarged section of area A from FIG. 3A.
  • FIG. 4 shows a perspective view of the device from FIG. 1.
  • Fig. 5 is a schematic representation of an apparatus for manufacturing
  • Fig. 6 is a schematic representation of the promotion of a
  • Fig. 7 is a schematic representation of the tensioning of a
  • Fig. 8 is a schematic representation of the separation of a
  • FIG. 9 shows a schematic illustration of the packaging material product and the packaging material strand immediately after the packaging material product has been separated
  • Figure 10 shows a control sequence for the drives of the feed wheel pairs
  • Figure 11 shows an alternative control sequence for manufacturing a
  • FIG. 12 shows a schematic illustration of a cutting edge 605 in cutting engagement with a strand of packaging material 611;
  • Figure 13 is a schematic representation of the occurrence of a
  • Figure 14 is a schematic representation of the elimination of a
  • FIG. 15 shows an exemplary control sequence of the drives of the conveyor wheel pairs and the cutting edge when removing a blockage of packaging material
  • FIG. 1 shows a view from below of a preferred embodiment of a device 601 for manufacturing packaging material products, in which a lower and upper boundary wall, in particular the conveying channel 619, is hidden in order to show the individual components of the device 601.
  • 1 shows the device 601 with the cutting edge 605 of a cutting device 603 in a preferred cutting start position.
  • FIG. 2 shows the device from FIG. 1 with the cutting edge 605 in a middle position between a preferred cutting start position and a preferred cutting end position.
  • FIG. 3A shows the device 601 from FIG. 1 with the cutting edge 605 in a preferred cutting end position.
  • FIG. 3B shows an enlarged view of area A from FIG. 3A.
  • Fig. 4 shows a perspective view of Fig. 3A
  • the device 601 comprises a cutting device 603 for separating the packaging material product (not shown in FIGS. 1 to 4) from a three-dimensional packaging material strand 611, such as a paper cushioning strand formed in the device 601 from a single or multi-layer paper web.
  • a pair of feed wheels 613 is arranged for conveying the strand of packaging material (not shown in FIGS. 1 to 4).
  • a pair of discharge wheels 615 is arranged for conveying the strand of packaging material away.
  • the feed wheel pair 613 is driven by a drive 635, in particular in the form of an electric motor.
  • the output of the drive 635 of the feed wheel pair 613 is coupled via a gear 637, in particular a worm gear, to the feed wheel pair 613, in particular to a drive shaft 639 of a feed wheel, in particular the driven feed wheel 641.
  • the conveying direction F preferably means the direction in which the packaging material strand 611 is conveyed from the feed wheel pair 613 to the discharge wheel pair 615.
  • the strand of packaging material 611 is conveyed directly, ie without deflecting the same, from the feed wheel pair 613 to the discharge wheel pair 615.
  • the packaging material strand 611 can also be deflected between the conveyor wheel pairs 613, 615.
  • conveying direction F is therefore to be understood as the direction in which the packaging material strand 611 is conveyed upstream and downstream of the conveying device, in particular the cutting edge 605.
  • the conveying direction F would be defined by the direction in which the packaging material strand 611 is conveyed upstream from the cutting edge 605 and the deflecting device close to the cutting edge 605 downstream.
  • the state of the cutting should preferably always be taken into account, in which the cutting edge 605 comes into cutting engagement with the packaging material strand 611.
  • a straight line extending along the cutting direction S can thus be regarded as a reference for the upstream and downstream arrangement of components.
  • a line extending in the cutting direction S at the time of the cutting engagement in the cutting direction S must be taken into account for the assessment of the upstream and downstream positioning of components relative to the cutting edge 605.
  • the cutting direction S is the direction in which the cutting edge 605 penetrates the packaging material strand 611 in the cutting engagement thereof. In the case of a cutting edge 605 which is guided purely by rotation, the tangent in the cutting engagement would therefore have to be taken into account as the cutting direction S.
  • the discharge wheel pair is driven by its own drive 643, in particular an electric motor.
  • the output of the drive 643 is coupled via a gear 645 to the pair of driven wheels 615, in particular to a drive shaft 647 of a driven discharge wheel 649.
  • the cutting device 603 is driven by a drive 651, in particular in the form of an electric motor.
  • the electric motor 651 extends Cutting device 603 in the drawing plane and in the cutting direction S.
  • the output of the drive 651 of the cutting device 603 is coupled to the cutting device 603 via a gear 653, in particular a gear which is provided with a cutting device.
  • the gear 653 of the cutting device 603 comprises a transmission gear 655 for translating or reducing the output movement of the drive 651.
  • the gear 653, which is provided with the cutting device comprises a conversion gear 657 for converting a rotary movement into a translational movement, in particular in the cutting direction S.
  • At least one, preferably two, particularly preferably all three, of the drives 635, 643 and 651 is an electric motor with a stationary stator, a rotor movably mounted therefor and a coil arrangement of the rotor or the stator which is supplied with an excitation current, the at least one electric motor being free an electrical contact coupling for transmitting the excitation current between the stator and the rotor and comprises a device for detecting the position of the rotor.
  • the device for detecting the position of the rotor, the rotor, the stator and the coil arrangement is formed within the respective electric motor 635, 643 and 651 and therefore cannot be seen in FIGS. 1 to 4.
  • These are in particular brushless DC motors with Hall sensors for the position detection device.
  • At least one, preferably two, particularly preferably all three, of the drives 635, 643 and 651 has an electric motor control subunit.
  • the subordinate control unit which is assigned to the drive 643, which drives the discharge wheel pair 613, is assigned the reference number 21.
  • a superordinate control unit is preferably provided for controlling at least one, preferably two, particularly preferably all three, of the control subunits.
  • the communication link for data exchange between the at least one electric motor control subunit and the higher-level control unit with the bus technology is not shown in FIGS. 1 to 3. However, connections 27 and 29 are shown in each case, via which connections in particular can be connected to the communication connection, in particular to a communication bus, such as a CAN bus.
  • the subordinate control units are each attached to the device 601, in particular to the electric motors 635, 643, 651, via mounting plates.
  • the mounting plate for the control subunit assigned to the removal wheel pair is provided with the reference number 35 in FIGS. 1 to 4.
  • the delivery area is provided with the reference 39 and extends in particular from the delivery wheel pair 615 in the conveying direction F beyond the device 601.
  • the discharge area within the device is delimited in particular by a discharge funnel 41 which widens in the conveying direction F.
  • a power supply unit 43 is preferably provided for the power supply of at least one of the control units and.
  • the cutting edge 605 preferably has a plurality of cutting prongs 663.
  • the cutting edge 605 preferably has seven cutting prongs 663.
  • the cutting tines adjoin one another in particular in a direction transverse to the conveying direction F, in particular orthogonally thereto, and in a direction transverse to the cutting direction S, in particular orthogonal to it.
  • the teeth can extend over the entire depth T of the cutting edge 605.
  • the depth T of the paper cushion making machine is the direction out of the drawing plane in the drawings.
  • the depth T preferably runs transversely, in particular orthogonally, to the cutting direction S and to the conveying direction F.
  • the tines 663 particularly preferably extend essentially over the entire depth T of the conveying channel 619.
  • the entire depth T is not to be understood as meaning that the cutting edge 605 grinds along the upper and lower boundary walls, not shown. Rather, a corresponding gap is preferably provided in the transition area between the upper and lower boundary wall and the cutting edge, so that the cutting edge 605 moves without contact with the upper and lower boundary wall.
  • Cutting tines 605 are preferably designed as triangles tapering in the cutting direction S, which preferably taper pyramid-shaped in the conveying direction F over the thickness of the cutting edge.
  • the cutting tines 663 adjoining the upper and lower boundary walls in depth T merge in the opposite direction to the cutting direction S, in particular in alignment, into an assembly section 665 of the cutting edge 605.
  • the cutting edge 605 is connected, in particular screwed, in particular via the mounting section 665 to a slide 667 of the cutting device 603.
  • bores 669 are preferably provided in the mounting section 665 of the cutting edge 605.
  • the cutting edge is connected to the slide 667 of the cutting edge via the bores 669, preferably with screws or rivets.
  • the carriage moves in particular in the cutting direction S.
  • the conversion gear 657 of the cutting device 603 preferably comprises two articulated sections 671, 673 which are connected to one another so as to be rotatable, in particular around an axis of rotation Di extending in the conveying direction F.
  • the articulated sections 671, 673 are each preferably connected to one another via one end.
  • a joint section 673 faces the carriage 667 in the conveying direction.
  • the other drive 651 faces in particular the transmission gear 655 of the drive 651.
  • the articulated section 673 facing the carriage 667 is articulated to the carriage 667 at its end facing away from the axis of rotation Di via an axis of rotation D2, which extends in particular in the conveying direction F.
  • the articulated section 671 facing the drive 651, in particular the transmission gear 655 is articulated to the transmission gear 655 via an axis of rotation D3, which extends in particular in the conveying direction F.
  • the cutting device 603 preferably has a guide 675 in the cutting direction S.
  • the guide preferably comprises a cylinder 677, which extends in particular in the cutting direction S, and a sled shoe 679 which can be moved along the cylinder 677 in the cutting direction S.
  • the sled shoe 679 is preferably fixedly connected to the slide 667.
  • the cutting edge 605 is particularly preferably arranged downstream of the cutting edge 605 in the conveying direction F and the gear 653, in particular the conversion gear 657, is arranged upstream of the cutting edge 605 in the conveying direction F.
  • a transmission gear 655 is provided between the axis of rotation D3 and the drive 651 for translating the drive rotation.
  • the transmission gear 655 is preferably a worm gear.
  • the transmission 655 can additionally be designed to offset the axis of rotation of the drive 651, in particular by 90 ° to the axis of rotation D3.
  • a conveying channel 619 extends in the conveying direction F at the level of the cutting device 603 and is delimited by a boundary wall 617.
  • the conveying channel 619 preferably extends in the conveying direction upstream and downstream of the cutting device up to the feed wheel pair 613 and the discharge wheel pair 615, preferably beyond the feed wheel pairs.
  • a gap 629 is configured in the boundary wall 617 in such a way that the cutting edge 605 can move into and out of the gap 629 without contact.
  • the cutting edge 605 preferably travels through the conveying channel 619 in a purely translatory manner.
  • the cutting edge 605 traverses transversely, preferably orthogonally to the conveying direction.
  • the device is preferably oriented such that the cutting edge 605 traverses the conveying channel 619 horizontally. Passing through is to be understood in particular to mean that the cutting edge moves from the cutting start position into the cutting end position in the cutting direction S from one side into the conveying channel 619 and exits from the conveying channel 619 via the opposite side in the cutting direction S.
  • the feed channel 619 is entered in particular via a retraction gap 633 which is introduced in the boundary wall 617.
  • the delivery channel 619 is extended in particular via a gap 629 which is introduced in the boundary wall 617.
  • the boundary wall 617 preferably has a funnel-shaped section 659, 661 in the conveying direction F upstream of the feed wheel pair 613 and / or the discharge wheel pair 615, which tapers in the conveying direction F.
  • the tapering of the funnel-shaped section 659, 661 preferably occurs in the cutting direction S.
  • the taper can be formed in a direction orthogonal to the conveying direction and the cutting direction.
  • the funnel-shaped section 659, 661 can be round or angular. In the embodiment shown here, the funnel-shaped section is angular and only has a taper in the cutting direction S.
  • the tapering of the conveying channel 619 is preferably formed in the region of the conveying channel 619 in which the packaging material strand 611 comes into engagement with the feed wheel pair 613 and / or the discharge wheel pair 615.
  • FIG. 5 shows a schematic representation of a device 601 for producing a packaging material product 609 (not shown in FIG. 5) from a fiber starting material, in particular from a paper cushion strand (not shown in FIG. 5) formed from a single or multi-layer paper web in the device. .
  • the device has a cutting edge 605 of a cutting device for separating the packaging material product 609 from a packaging material strand 611.
  • a pair of feed wheels 613 for conveying the strand of packaging material 611 is arranged upstream of the cutting edge 605 in the conveying direction F.
  • a pair of discharge wheels 615 is arranged downstream of the cutting edge 605 in the conveying direction F for conveying the strand of packaging material 611.
  • the position of the cutting edge 605 shown in FIG. 5 is a schematic illustration of the preferred cutting end position.
  • the cutting edge 605 preferably moves in a purely translatory manner from a cutting start position in the cutting direction S to the cutting end position.
  • the cutting direction S is particularly preferably transverse or orthogonal to the conveying direction F.
  • the cutting edge can also be guided in such a way that it at least traverses the packaging material strand 611 translationally, in particular in the cutting direction S when the packaging material product 609 is separated.
  • the cutting edge 605 can also be guided at least in such a way that it cuts through the packaging material strand 611 translationally in the cutting engagement transversely to the conveying direction.
  • the cutting edge does not necessarily have to move translationally through the entire strand of packaging material 611, but in particular can also only translate in a cutting engagement with the packaging material strand 611. It is preferred that the cutting direction S is transverse, particularly preferably orthogonal, to the conveying direction F and / or horizontal.
  • the device 601 has a delivery channel 619 which is delimited by a boundary wall 617.
  • the conveying channel 619 particularly preferably extends in the conveying direction F at least between the two pairs of conveying wheels 613, 615. In a less preferred embodiment, the conveying channel extends at least at the conveying direction height of the cutting device or the cutting edge 605. It is particularly important that the conveying channel 619 is particularly important limit immediately upstream and downstream of the cutting edge 605.
  • the conveyor channel 619 is delimited by a boundary wall 617.
  • a gap 629 is configured in the boundary wall 617 in such a way that the cutting edge 605 can move into and out of the gap 627 without contact.
  • the conveying channel In the conveying direction F upstream of the gap 629, the conveying channel is delimited by a wall section 621 which has an upstream counter edge 623 delimiting the gap in the conveying direction F upstream.
  • the conveying channel 619 In the conveying direction downstream of the gap 629, the conveying channel 619 is delimited by a downstream wall section 625 which has a downstream counter edge 627 delimiting the gap 629 in the conveying direction F downstream.
  • the cutting edge 605 is preferably spaced apart from the downstream counter edge 627 and from the upstream counter edge 623 in the conveying direction F when entering and leaving the gap 629.
  • the cutting edge 605 moves from the cutting start position into the cutting end position purely translationally and orthogonally to the conveying direction F, so that the distances of the counter edges 623, 627 to the cutting edge 605 in the conveying direction F are shown are constant.
  • the cutting edge can also move transversely to the conveying direction F at an obtuse or acute angle, or can move in part in a rotary manner.
  • the device 601 can additionally have a retraction gap 633 formed in the boundary wall 617, which is designed in such a way that the cutting edge can move into and out of the conveying channel 619, in particular without contact.
  • the withdrawal gap 633 is preferably formed on a section of the boundary wall 617 opposite the gap in the cutting direction S.
  • the withdrawal gap 633 and / or the section of the boundary wall 617 opposite the gap 629 is particularly preferably designed like the gap 629 and / or as the wall sections surrounding the gap.
  • the conveying channel 619 in the conveying direction F upstream of the withdrawal gap 633 is delimited by an upstream wall section 621 ′ which has an upstream counter edge 623 ′ which delimits the withdrawal gap 633 in the conveying direction upstream.
  • the conveying channel 619 in the conveying direction F downstream of the withdrawal gap 633 is delimited by a downstream wall section 625 ′ which has a downstream counter edge 62 / which delimits the withdrawal gap 633 in the conveying direction F downstream.
  • the cutting edge 605 is preferably spaced apart from the upstream counter edge 623 ′ in the conveying direction F and / or spaced in the conveying direction F from the downstream counter edge 62 / in the conveying direction F.
  • a conveying channel 619 extends in the conveying direction F at the level of the cutting device 603 and is delimited by a boundary wall 617.
  • the conveying channel 619 preferably extends in the conveying direction upstream and downstream of the cutting device up to the feed wheel pair 613 and the discharge wheel pair 615, preferably beyond the feed wheel pairs.
  • a gap 629 is configured in the boundary wall 617 in such a way that the cutting edge 605 can move into and out of the gap 629 without contact.
  • the conveying channel 619 is delimited in the conveying direction F upstream of the gap 605 by an upstream wall section 621 and downstream of the gap 629 by a downstream wall section 625.
  • the cutting edge passes through the section of the conveying channel 619 delimited by the upstream wall section 621.
  • the cutting edge should be in the cutting start position in the cutting direction S outside of the conveying channel 619 in order to prevent the cutting edge 605, in particular on the cutting tip 631, from getting caught between the pairs of conveying wheels 613, 615 when the packaging material strand 6 is conveyed.
  • the feed wheel pair 613 and the discharge wheel pair 615 are each assigned a separate drive 635, 643.
  • the cutting device 603 is preferably assigned its own drive 651 for independently driving the cutting device 603 from the conveyor wheel pairs 613, 615.
  • own drive is preferably to be understood that the respective drive 635, 643, 651 preferably exclusively drives the respective cutting device 603 or the respective conveyor wheel pair 613, 615.
  • the drives can also drive further working devices that go beyond the cutting device 603 and the conveyor wheel pairs 613, 615.
  • the independent driving of the feed wheel pair 613 and the discharge wheel pair 615 and preferably by the independent driving of the cutting device 603 results in the particular advantage that the manufacture of the packaging material product in an existing device 601 is individually adjusted to the paper material to be processed and the desired shape of the packaging material product can.
  • the tension of the packaging material strand 611 can be increased before it is cut off, or the travel speed when the cutting edge 605 is moved from a cutting start position to a cutting end position.
  • these measures can be used to continue to ensure adequate cutting despite the wear of the cutting edge occurring over time by adapting the tension or the cutting speed.
  • the tension of the packaging material strand 611 can be adjusted before the packaging material product 609 is separated. Furthermore, depending on the material used and the associated increase in dust and cutting chips during separation, as described above, the tension of the packaging material strand 611 can be adjusted before the packaging material product 609 is separated. Furthermore, the independent driving of the wheel pairs ensures the possibility of driving the wheel pairs in opposite directions for removing jams and / or driving the feeding wheel pair in the direction opposite to the conveying direction F.
  • one of the feed wheels of the feed wheel pair is not driven directly by the drive 635.
  • the not directly driven feed wheel 301 is preferably driven indirectly via the driven feed wheel 641. This is particularly preferably achieved in that the non-driven feed wheel 301 is biased against the driven feed wheel 641.
  • the pretensioning is realized in particular by undersizing the distance between the wheel axles 303, 305 from one another. Due to the undersizing of the feed wheel center distance ZA, the feed wheels are elastically preloaded against one another. In order to set the feed wheel axis distance ZA, at least one of the feed wheels 641, 301 can preferably be moved or braced with the other feed wheel.
  • a tensioning device 607 is preferably provided, with which one of the feed wheels 641, 301 is braced with the other feed wheel 301, 641 via wall sections of the device 601.
  • the tensioning device preferably comprises a wheel receptacle 309 connecting the feed wheel 301 to the lower and upper boundary wall (not shown) and at least one, preferably two, fastening means 313 connecting the wheel shaft 311 of the feed wheel 301 to the wheel receptacle 309, such as a screw 313 (only for the discharge wheel pair 615 shown).
  • the tensioning device 307 is preferably attached to the non-driven feed wheel 301.
  • the feed wheel axis distance ZA can thus be adjusted, for example by actuating the fastening means 313, while the driven feed wheel 641 remains in a constant position with respect to the drive 635.
  • the tension between the feed wheels in particular depending on the one to be processed Fiber starting material or the desired
  • Packaging material product geometry can be adapted, in particular without significantly increasing the development effort of the device 601.
  • the discharge wheels 649, 315 are braced against one another.
  • the tension between the removal wheels 315, 649 is particularly preferably set via an under-dimensioned removal wheel axis distance AA between the wheel axis 317 of the driven removal wheel 649 and the wheel axis 319 of the non-driven removal wheel 315.
  • the discharge wheel axis distance AA can be set as described for the feed wheel pair 613 via a tensioning device 321.
  • the tensioning device 321 of the discharge wheel pair 615 preferably also has a wheel receptacle 323 with which the output shaft 325 of an output wheel 315, 649 is fastened to the device 601 and a connecting means 313 for connecting the wheel shaft 325 to the wheel receptacle 323 of the tensioning device 321.
  • An underdimensioned wheel axle distance is to be understood in particular to mean that the distance between the wheel axles 303, 305, 317, 319 of a wheel pair is smaller than the sum of the radii of both wheels, in particular in the disassembled state. This can be ensured in particular by a certain elasticity of the feed wheels. It is therefore preferred to design the feed wheels from an elastomer body, such as a PU foam body, or to provide them with an elastically deformable rolling region on their outer circumference. The elasticity of the feed wheels can also be increased by introducing several, in particular between six and fourteen, recesses 327, in particular recesses 327 evenly distributed in the circumferential direction. In order to ensure that the elasticity of the feed wheels is largely independent of the rotational position, the recesses 327 are preferably made uniformly in the peripheral wheels in the circumferential direction.
  • the device 601 shown in FIGS. 1 to 4 shows the state in which there is no strand of packaging material 611 in engagement with the conveyor wheel pairs 613, 615.
  • the wheels of the pairs of feed wheels contact each other preferably by the mutual bracing in a particularly circular or elliptical contact surface.
  • the respective conveyor wheels are preferably separated from one another by the strand of packaging material.
  • the conveyor wheels only touch or are spaced from each other, so that a power transmission between the conveyor wheels of a pair of conveyor wheels 613, 615 only occurs when the
  • Packaging material strand 611 is engaged with the respective conveyor wheel pair.
  • the wheel axes 317, 319 of the feed wheel pair and / or the wheel axes 303, 305 of the feed wheel pair are preferably aligned with one another in such a way that the tangent TAZ of the feed wheel pair and / or the tangent of the feed wheel pair TAA run parallel to the conveying direction F.
  • tangent should in particular not exclusively be understood to mean that the feed wheels only touch, but rather, in the preferred embodiment in which a contact surface is created between the feed wheels, a line extending in the feed direction between the first contact point and the last contact point be considered as tangent.
  • the wheel axles 303, 305, 317, 319 of each wheel pair 615, 613 can be offset from one another in such a way that the tangent TAZ of the feed wheel pair and / or the tangent TAA of the discharge wheel pair are inclined with respect to the conveying direction F.
  • the wheel axes of a pair of feed wheels are particularly preferably arranged in such a way that the tangents TAZ and TAA run parallel to one another and are particularly preferably identical. This can be achieved in particular by arranging the wheel axles 303, 305, 317, 319 of each wheel pair 613, 615 one above the other, in particular in the cutting direction S.
  • At least one drive 643, 635 of the feed wheel pairs 613, 615 are each coupled via a gear 637, 645 to at least one feed wheel of the respective feed wheel pair.
  • the coupling is designed such that the output axis of the drive runs transversely, in particular orthogonally, to the drive axis 305, 317 of the respective drive wheel.
  • a worm gear is particularly preferably used for this.
  • FIGS. 6 to 9 schematically show the sequence of a preferred method for producing a packaging material product 609.
  • FIG. 6 shows the conveying of the packaging material strand between two conveyor devices in the form of conveyor wheel pairs 613, 615.
  • the packaging material strand 611 is fed to a cutting device 603 via a pair of feed wheels 613.
  • FIGS. 6 to 9 only a cutting edge 605 of the cutting device 603 is indicated in the form of an arrow.
  • the packaging material strand 611 in Direction of conveyance F is conveyed beyond the cutting edge 605 of the cutting device to a removal device.
  • the discharge device is shown here in the preferred embodiment of a pair of discharge wheel 615 described above.
  • the packaging material strand 611 is preferably conveyed in the conveying direction until it comes into engagement with the discharge wheel pair 615.
  • the Zu rawradcru and Ab aggregateradcru are each provided with a Zu importancegraphiere to n and a n Ab technicalnautiere from driven.
  • the rotational speeds n zu and n ab can be set arbitrarily both in terms of their height and in relation to one another.
  • FIGS. 6 to 9 show a preferred embodiment of the method according to the invention in accordance with the second aspect of the present invention.
  • This method relates to the production of a packaging material product 609, in which a packaging material strand 611 is fed to a cutting device via a feed device 613, the packaging material product 609 is cut off from the packaging material strand 611 with the cutting device 603, and the packaging material product 609 is conveyed away via the removal device 615.
  • the feed device 613 and the removal device 615 are driven and / or braked independently of one another before the separation of the packaging material product 609, as described in particular in connection with FIG. 7, in such a way that the packaging material strand 611 is stretched between the conveying devices 613, 615.
  • FIG. 7 shows a preferred embodiment of the tensioning of the packaging material strand 611, in which the feed wheel pair 613 is braked, in particular stopped, and the feed wheel pair 615 is driven over a predetermined angle fi S t, a b.
  • the predetermined angle fi S t, a b, by which the driven discharge wheel 649 is rotated is smaller than a target angle f S oiub, with which the discharge wheel pair 615, in particular the driven discharge wheel 649, is driven.
  • the difference between the predetermined angle fi St, ab and the target angle f S oii, ab arises in particular by the fact that the feed wheel pair 613 is braked, in particular stopped, in such a way that the wheels 641, 301 of the feed wheel pair of the rotational movement of the wheels 649, 315 of the discharge wheel pair at least not fully follow.
  • the wheels of the feed wheel pair 613 can also be rotated, in particular by an angle fi st, by the tension transmitted via the packaging material strand 611 to the feed wheel pair 613.
  • the drive wheels 641, 301 are braked or stopped in such a way that the predetermined angle fi st, at which the feed wheels is smaller than the predetermined angle fi st, from the discharge wheels, so that a tension in the packaging material strand 611 arises.
  • Braking can take place, for example, in that a drive which drives the feed wheel pair 613 notifies the feed wheel pair 613 of a braking torque which is opposite to the feed direction F.
  • braking of the feed wheel pair 613 can also be carried out by stopping the feed wheel pair 613.
  • the feed wheels 301, 641 of the feed wheel pair can be braced against one another in such a way that even with a feed wheel pair that is not driven at the time of tensioning, there is resistance to a rotational movement of the feed wheels, so that the feed wheels 641, 301 do not move along the entire path that this Ab scholarradcru 615 specifies.
  • the tension of the packaging material strand 611 can also be effected in an analogous manner by braking, in particular stopping, the pair of discharge wheels 615 and by driving the pair of feed wheels 613 in the direction opposite to the direction of conveyance F.
  • the clamping can also be carried out by driving both pairs of feed wheels at different speeds, or by driving the pairs of feed wheels in different directions, in particular the pair of feed wheels in the direction opposite to the direction of conveyance F and the pair of discharge wheels 615 in the direction of conveyance F.
  • FIG. 8 shows the separation of the packaging material product 609 from the packaging material strand 611. The position is shown in which the cutting edge 605 has already penetrated the packaging material strand 611, but has not yet completely severed it. When the cutting edge penetrates the packaging material strand, the cutting edge 605 notifies the packaging material strand 611 of a force in the cutting direction S, which transmits a torque to the feed wheels of the feed wheel pair 613 and the feed wheel pair 615.
  • the cutting edge 605 can also move into the packaging material strand 611 a rotational movement of Zu rawradcrus a difference angle Df s, to and / or the Ab summaryradcrues 615 to a differential angle Df s, cause off.
  • the separation can thereby increase the difference between the desired angles Df s, zu , Df s, ab and the predetermined actual angles fi St , zu and f ist , from effect.
  • FIG. 9 shows a preferred state after the separation process, in which the packaging material strand 611 and the packaging material product 609 are preferably located centrally in the conveying channel, in particular outside the gap 629.
  • This state can be achieved, in particular, in that the set angles f soii, zu and f S oii, set themselves as a result of the separation of the packaging material product, and thereby the
  • Mechanism for avoiding clogging of packaging material can be integrated in a method and / or in a device for manufacturing packaging material. In particular, by independently driving the pairs of conveyor wheels, this mechanism can be individually adjusted depending on the fiber starting material to be processed and the desired packaging material product to be produced by adapting the desired angles and, if necessary, the braking torques.
  • FIG. 10 shows the speed curve n and the rotation angle curve f of a method for manufacturing a packaging material product 609.
  • the courses shown here differ in particular in that the braked, in particular stopped, feed device 613, 615 is stopped in such a way that it does not move when the packaging material strand 611 is tensioned, in particular the drive wheels are not rotated.
  • the courses shown in FIG. 10 differ from the courses shown in FIGS. 6-9 in that the penetration of the cutting edge 605 into the packaging material strand 611 does not involve any movement, in particular no rotary movement, by a difference angle Df s, zu , Df s, evokes.
  • the angle of rotation f of the drives 635, 643, 651 is shown with dashed lines and the speed of the drives 635, 643, 651 with solid lines over time t. 10 contains three speed and rotation angle curves, the upper curve being assigned to the drive 651 of the feed device 635, in particular the feed wheel pair 613, the middle curve being assigned to the drive 651 of the cutting device 603 and the lower curve to the drive 643 of the discharge device, in particular of the discharge wheel pair 615.
  • the courses are timed in the beginning of the production process L, with which the start of the conveyance is associated, the start of the clamping t 2, with which the end of the conveyance is associated, the start of the separation t 3 , with which the end of the voltage generation is associated, the cutting intervention t 4 , in which the cutting edge 605 comes into engagement with the packaging material strand 611, and the severing t 5 , in which the packaging material product 609 is completely separated from the packaging material strand 611, in particular the manufacturing process has ended.
  • the drives 635, 643 of the conveying devices 613, 315 are driven synchronously with one another, so that with the same translation of the drive movement of the drives 635 and 643 onto the packaging material strand 611, the packaging material strand 611 is conveyed essentially without tension.
  • the packaging material strand can be conveyed under tension by a different speed, for example by an increased speed of the drive 643 compared to the drive 635 or by a different transmission ratio.
  • the drives 635 and 643 are preferably stopped before the tension in the packaging material strand 611 is built up.
  • the predetermined angle fi st, ab is set by driving the drive 643 in the conveying direction F over the period t 2 to t 3 .
  • the speed of the drive 643 is preferably reset to zero.
  • the drive 643 preferably rotates further in the conveying direction to the desired angle f S oii, As shown in FIG.
  • the method for producing a packaging material product 609 can be modified in particular with regard to the tensioning of the packaging material strand 611.
  • the feed device can also be driven via the drive 635.
  • the drive 635 is driven in the opposite direction to the conveying device F, while the drive 643 of the conveying device is driven in the conveying direction F.
  • the angle f Soi u b of the drive 643 can be reduced and can be compensated for by the angle fi st such that the packaging material strand 611 is acted upon with the same voltage as in FIG. 10.
  • the control of the two drives 635 , 643 in opposite directions is that the same tension can be brought about by applying a smaller force on the part of the individual drives. Furthermore, by driving the drives 635, 643 in different directions, the integrated mechanism for eliminating packaging material blockages or for preventing such blockages can be specifically coordinated with the material of the fiber starting material to be processed, the cutting edge used and the desired packaging material product geometry.
  • the third variant, in which the drive 635 is driven in the opposite direction to the conveying direction F for tensioning the packaging material strand 611 and the drive 643 is stopped or braked, is not shown, but can be anticipated in particular by driving the drive 643 between the times t 2 and t 3 is omitted in FIG. 11 and the angle fi st is increased or decreased depending on the requirements for the voltage to be generated.
  • FIGS. 13 and 14 schematically show the formation of a blockage of packaging material.
  • the packaging material strand 611 can be clamped in the gap 629, which can lead to a packaging material blockage in the device 601.
  • the devices of the generic type which have a pair of feed wheels, a pair of discharge wheels and a cutting device arranged in between, there is an increased risk of jamming between the pairs of conveyor wheels 613, 615.
  • Such blockages can occur, in particular, if the cutting edge 605 of the cutting device 603 does not or only partially the packaging material strand severed so that no packaging material product 609 is manufactured.
  • Such blockages can also occur if the packaging material product 609 is separated from the packaging material strand 611 and the remaining packaging material strand is clamped in the gap 629.
  • a method for eliminating packaging material blockages which arise during the manufacture of a packaging material product, during the production of which a packaging material strand, such as a corrugated cardboard web or a three-dimensional packaging material strand formed from a single or multi-layer paper web, in particular from recycled paper, is used a feed device, such as a feed wheel pair 613, is conveyed in the conveying direction F to a cutting device.
  • the method according to the invention is characterized in that the feed device is driven in a direction opposite to the conveying direction F when packaging material becomes blocked, as can be seen for example in FIG.
  • the pair of removal wheels can also be used to unclog the packaging material.
  • the conveying device is also driven, but in the conveying direction F. The additional driving of the conveying device can also be advantageous if the packaging material product 609 has been separated from the packaging material strand 611, but this has also been done is clamped in the gap 629.
  • the conveying devices can in particular be driven independently of one another in each case by a drive such that the packaging material strand is tensioned.
  • the packaging material product 609 can then be re-initiated by the packaging material strand 611.
  • FIG. 14 before driving the feed device, which is designed here as a feed wheel pair 613, it is checked opposite to the feed direction F whether the cutting edge 605 of the cutting device is in a cutting start position or in a cutting end position. In particular, it is checked whether the cutting edge 605 is located within the conveying channel 619. If this is the case, the cutting edge 605 is conveyed out of the conveying channel 619, in particular opposite to the cutting direction S, before the feed device is driven opposite to the conveying direction F.
  • Figure 16 shows the course of the speed n and the angle of rotation f of the drives of a feed device, a discharge device and a cutting device. The upper course in FIG.
  • t 7 represents the point in time at which the feed device is driven in the opposite direction to the conveying direction F.
  • Ts represents the time at which the driving of the feed device opposite to the conveying direction F is ended or at which the jam is removed. It is particularly important to drive the feed wheel pair in the opposite direction
  • the removal device can additionally jam over a predetermined time with a predetermined speed and a predetermined torque and / or over a predetermined angle, such as the angle f shown here
  • Cutting device 603 is located in the conveying channel 619 or not, the jam removal, in particular between the two points te and t 7 , can be preceded by an extension of the cutting edge, in particular by moving in the direction opposite to the cutting direction S.
  • f is, from a predetermined angle of the discharge wheel pair

Landscapes

  • Making Paper Articles (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)
  • Buffer Packaging (AREA)

Abstract

La présente invention concerne un dispositif de fabrication d'un produit de matériau d'emballage à partir d'un matériau de départ fibreux, tel qu'une bande de papier monocouche ou multicouche ou une bande de carton ondulé, notamment à partir de papier recyclé. Le dispositif comprend un dispositif de tronçonnage destiné à tronçonner le produit de matériau d'emballage d'un tronçon de matériau d'emballage, tel qu'une bande de carton ondulé ou un tronçon rembourrage en papier tridimensionnel formé à partir du matériau de départ fibreux dans le dispositif, une paire de roues d'acheminement disposée en amont du dispositif de tronçonnage dans le sens de transport et destinée à transporter le tronçon de matériau d'emballage et une paire de roue d'enlèvement disposée en aval du dispositif de tronçonnage dans le sens de transport et destinée à enlever le tronçon de matériau d'emballage. Un entraînement séparé destiné à entraîner et/ou freiner indépendamment au moins une roue de la paire de roues respective est associé à la paire de roues d'acheminent et à la paire de roues d'enlèvement.
EP19820741.7A 2018-12-11 2019-12-11 Dispositif à plusieurs entraînements pour fabriquer un produit de matériau d'emballage à partir d'un matériau de départ fibreux, procédé de fabrication d'un produit de matériau d'emballage et procédé d'élimination d'une obstruction de matériau d'emballage Pending EP3894205A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22154770.6A EP4026690A3 (fr) 2018-12-11 2019-12-11 Dispositif pourvu d'une pluralité d'entraînements permettant de fabriquer un produit de matière d'emballage à partir d'une matière fibreuse de départ, procédé de fabrication d'un produit de matière d'emballage et procédé d'élimination des obstructions de matière d'emballage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018009679.4A DE102018009679A1 (de) 2018-12-11 2018-12-11 Vorrichtung mit mehreren Antrieben zum Fertigen eines Verpackungsmaterialerzeugnisses aus einem Faserausgangsmaterial, Verfahren zum Fertigen eines Verpackungsmaterialerzeugnisses und Verfahren zum Beseitigen von Verpackungsmaterialverstopfungen
PCT/EP2019/084645 WO2020120575A2 (fr) 2018-12-11 2019-12-11 Dispositif à plusieurs entraînements pour fabriquer un produit de matériau d'emballage à partir d'un matériau de départ fibreux, procédé de fabrication d'un produit de matériau d'emballage et procédé d'élimination d'une obstruction de matériau d'emballage

Related Child Applications (1)

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EP22154770.6A Division EP4026690A3 (fr) 2018-12-11 2019-12-11 Dispositif pourvu d'une pluralité d'entraînements permettant de fabriquer un produit de matière d'emballage à partir d'une matière fibreuse de départ, procédé de fabrication d'un produit de matière d'emballage et procédé d'élimination des obstructions de matière d'emballage

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EP3894205A2 true EP3894205A2 (fr) 2021-10-20

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EP19820741.7A Pending EP3894205A2 (fr) 2018-12-11 2019-12-11 Dispositif à plusieurs entraînements pour fabriquer un produit de matériau d'emballage à partir d'un matériau de départ fibreux, procédé de fabrication d'un produit de matériau d'emballage et procédé d'élimination d'une obstruction de matériau d'emballage
EP22154770.6A Pending EP4026690A3 (fr) 2018-12-11 2019-12-11 Dispositif pourvu d'une pluralité d'entraînements permettant de fabriquer un produit de matière d'emballage à partir d'une matière fibreuse de départ, procédé de fabrication d'un produit de matière d'emballage et procédé d'élimination des obstructions de matière d'emballage

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EP22154770.6A Pending EP4026690A3 (fr) 2018-12-11 2019-12-11 Dispositif pourvu d'une pluralité d'entraînements permettant de fabriquer un produit de matière d'emballage à partir d'une matière fibreuse de départ, procédé de fabrication d'un produit de matière d'emballage et procédé d'élimination des obstructions de matière d'emballage

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EP (2) EP3894205A2 (fr)
DE (1) DE102018009679A1 (fr)
WO (1) WO2020120575A2 (fr)

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WO2022236013A1 (fr) 2021-05-06 2022-11-10 Terry Hermanson Matériau d'emballage et procédé d'emballage d'un objet dans une boîte d'expédition
DE102022114014A1 (de) 2022-06-02 2023-12-07 Storopack Hans Reichenecker Gmbh Vorrichtung zum Umwandeln eines Ausgangsmaterials in ein Polstermaterial zum Füllen des Leervolumens in einem Behälter, sowie Verfahren zum Betreiben einer solchen Vorrichtung

Family Cites Families (11)

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NL9400606A (nl) * 1994-04-15 1995-11-01 Ranpak B V Inrichting voor het vervaardigen van lintvormig verpakkingsmateriaal van gelaagd papier of dergelijke.
US5593376A (en) * 1994-07-22 1997-01-14 Ranpak Corp. Cushioning conversion machine and method
CN1216952A (zh) * 1996-02-28 1999-05-19 兰帕克公司 软垫改制机
EP0958135A1 (fr) 1996-06-28 1999-11-24 Ranpak Corp. Machine a transformer des materiaux de rembourrage
AU9596798A (en) * 1997-10-02 1999-04-27 Ranpak Corp. Packing material product and method and apparatus for making, monitoring and controlling the same
US6168560B1 (en) * 1998-04-17 2001-01-02 Ranpak Corp Cushioning conversion machine and method with pad transferring device
DE202004016106U1 (de) * 2004-10-18 2005-01-27 Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. Maschine zum Herstellen von Polsterabschnitten aus bahnförmigem Material
US20070117703A1 (en) * 2005-11-22 2007-05-24 Sealed Air Corporation Machine and method for converting a web of material into dunnage
US9457982B2 (en) * 2013-03-15 2016-10-04 Pregis Innovative Packaging Llc Tear-assist blade
DE102014016874A1 (de) 2014-11-14 2016-05-19 Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. Vorrichtung zum maschinellen Fertigen eines Füllmaterialerzeugnisses
DE102016114342A1 (de) * 2016-08-03 2018-02-08 Storopack Hans Reichenecker Gmbh Verfahren und Vorrichtung zum Herstellen eines Polsterungserzeugnisses sowie Polsterungserzeugnis

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WO2020120575A2 (fr) 2020-06-18
WO2020120575A3 (fr) 2020-08-06
DE102018009679A1 (de) 2020-06-18
EP4026690A2 (fr) 2022-07-13
EP4026690A3 (fr) 2022-09-21

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