EP4214031B1 - Dispositif de coupe et table de manufacture comprenant le dispositif - Google Patents

Dispositif de coupe et table de manufacture comprenant le dispositif

Info

Publication number
EP4214031B1
EP4214031B1 EP21778468.5A EP21778468A EP4214031B1 EP 4214031 B1 EP4214031 B1 EP 4214031B1 EP 21778468 A EP21778468 A EP 21778468A EP 4214031 B1 EP4214031 B1 EP 4214031B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
fiber
knife
cutting device
rotation
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.)
Active
Application number
EP21778468.5A
Other languages
German (de)
English (en)
Other versions
EP4214031C0 (fr
EP4214031A1 (fr
Inventor
Florian MÜLLER
Simon SEPPI
Manuel FÄSSLER
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.)
Alpla Werke Alwin Lehner GmbH and Co KG
Original Assignee
Alpla Werke Alwin Lehner GmbH and Co KG
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 Alpla Werke Alwin Lehner GmbH and Co KG filed Critical Alpla Werke Alwin Lehner GmbH and Co KG
Publication of EP4214031A1 publication Critical patent/EP4214031A1/fr
Application granted granted Critical
Publication of EP4214031C0 publication Critical patent/EP4214031C0/fr
Publication of EP4214031B1 publication Critical patent/EP4214031B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/166—Trimming tube-ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/147—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with horizontal cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts

Definitions

  • the present invention relates to a cutting device for preparing a fiber-based cover and to a preparation table comprising a cutting device for preparing a fiber-based cover according to the preamble of the independent claims.
  • a fiber-based container was developed in the WO 2012/139590 A1
  • the proposed method involves placing so-called pulp into a mold and pressing it against a corresponding wall with a flexible balloon.
  • Pulp is a mixture of fibers and water, especially natural fibers such as hemp fibers, cellulose fibers, or flax fibers, or a mixture thereof.
  • the pulp may also contain additives, such as those from the... PCT/EP2019/076839 known properties that, for example, improve the hardening of the compressed pulp, influence the later appearance, or generally change the properties of the pulp or the later container.
  • the object of the invention is to overcome one or more disadvantages of the prior art.
  • it aims to create a device that enables the precise manufacturing of fiber-based casings.
  • a fiber-based shell is understood to be an object into which another object, such as a plastic container, can be inserted.
  • a fiber-based container is understood to be a container into which a substance, such as a liquid, can be directly introduced.
  • a fiber-based container typically has a base, a body, and a neck to which the opening is attached.
  • a fiber-based shell can also have these elements, but this is not mandatory.
  • a fiber-based shell can also be, for example, simply tubular and have two openings. It is conceivable that a container to be inserted into this shell could protrude from the fiber-based shell with both its base and its neck. With regard to an opening to be manufactured, this includes container openings as well as openings at tubular ends of a shell.
  • US 2002/056346 Al discloses a cutting device for trimming a plastic container, wherein the cutting device has two knives that are rotatable about axes of rotation perpendicular to each other.
  • a cutting device for preparing a fiber-based casing, in particular a fiber-based container, comprises a first mandrel on which it is rotatable about an axis of rotation and on which the fiber-based casing can be arranged. Furthermore, the cutting device comprises a knife which is rotatable about an axis of rotation. The axis of rotation of the first mandrel and the axis of rotation of the knife are adjacent to each other, in particular at an angle of less than 10° to each other, preferably less than 5° to each other, and preferably parallel to each other.
  • the knife is positioned opposite the mandrel in the direction of one of the axes of rotation, i.e. along the axis of rotation.
  • the mandrel is preferably essentially circular-cylindrical. However, in the direction opposite to the receiving direction of the fiber-based sheath, the mandrel can also be at least partially conical to facilitate the insertion of the mandrel into the fiber-based sheath, or the application of the sheath onto the first mandrel.
  • the receiving direction of the fiber-based sheath is the direction in which the fiber-based sheath must be moved to position it on the mandrel.
  • This arrangement allows the blade and mandrel to roll against each other, thus performing a cutting motion. This makes it possible to separate a fiber-based sheath positioned between the mandrel and the blade and create a defined cut edge on the fiber-based sheath.
  • Adjacent to each other means that the axes of rotation run essentially in the same direction.
  • the mandrel can be designed as a spreader with radially movable segments or sectors.
  • the first mandrel has a drive device.
  • the drive device allows a fiber-based sheath applied to the first mandrel to rotate together with the first mandrel. This rotation enables the entire circumference of the fiber-based sheath to pass a specific position, particularly the position where the rotating blade engages. Furthermore, it allows for... Continuous rotation repeatedly passes a specific point on the circumference of the fiber-based sheath over the blade. This allows for very gentle cutting of the fiber-based sheath.
  • the knife is mounted to rotate freely and can be driven or is driven by contact with the mandrel or a fiber-based sheath arranged on the mandrel.
  • This passive drive of the blade ensures that no relative movement occurs between the blade and the surface being cut. This is because the friction of the blade on the mandrel, or on the fiber-based sheath being cut, drives it precisely at the circumferential speed of the fiber-based sheath, neglecting any slippage. Thus, the circumferential speed of the fiber-based sheath and the circumferential speed of the blade are identical. This reduces the risk of fiber tear-out caused by a speed difference between the blade and the surface of the fiber-based sheath.
  • the knife can also have a drive device. Accordingly, the mandrel and the knife can be driven simultaneously. This allows for the adjustment of a specific slippage between the knife and the fiber-based casing. Preferably, this slippage is reduced to zero.
  • the rotatable knife is arranged to be displaceable relative to the first mandrel, such that a distance between the axis of rotation of the first mandrel and the axis of rotation of the knife can be adjusted.
  • the mandrel especially when combined with its drive mechanism, can thus be stationary, for example, on a finishing table. This allows only the knife to be spaced further apart from the mandrel when applying the fiber-based sheath. Furthermore, it is easy to accommodate different wall thicknesses of the fiber-based sheath.
  • Mounting the knife on a carriage allows it to be moved linearly towards or away from the mandrel.
  • mounting it on a pivoting console allows it to be moved towards or away from the mandrel by pivoting.
  • the carriage can be designed to allow at least slight pivoting for centering the knife and/or compensating for tolerances in the fiber-based casing being cut. Preload elements on the carriage can be used for this purpose.
  • the knife can be positioned with a preload towards the mandrel, and the mandrel is guided past the knife, rotating as it passes.
  • the knife is located in a clearance space in front of the mandrel and, upon impact with the mandrel or a fiber-based sheath, is moved away from the mandrel according to its diameter. Simultaneously, the knife is driven by the mandrel, and the fiber-based sheath is cut.
  • the cutting device can have a second mandrel that is rotatable about an axis of rotation and on which a further fiber-based sheath can be arranged.
  • the axis of rotation of the second mandrel and the axis of rotation of the knife are adjacent to each other, in particular at an angle of less than 10° to each other. preferably arranged less than 5° apart, preferably parallel to each other.
  • two fiber-based casings can be assembled together simultaneously with a single knife.
  • the second mandrel may have a drive device.
  • the drive mechanism allows a fiber-based sleeve applied to the second mandrel to rotate together with the second mandrel. This rotation enables the entire circumference of the fiber-based sleeve to pass by a specific position, particularly the point where the rotating blade engages. Furthermore, continuous rotation allows a specific section of the fiber-based sleeve's circumference to be passed by the blade multiple times. This enables very gentle cutting of the fiber-based sleeve.
  • the first mandrel and the second mandrel have a common drive device.
  • the knife is arranged on a rotating plate between the first mandrel and the second mandrel for centering.
  • a pivot point of the turntable is arranged in the area of an axis of symmetry between the two mandrels, whereby this area can extend on both sides of the axis of symmetry up to the respective mandrel.
  • the knife By arranging the knife on a turntable, it is possible to position it uniformly relative to the two mandrels. In particular, such an arrangement allows for the equalization of the distance between the axis of rotation of the first mandrel and the axis of rotation of the knife, as well as the distance between the axis of rotation of the second mandrel and the axis of rotation of the knife.
  • a rotational or pivoting movement of the turntable can be limited by elastic stops such as springs. It is conceivable that a spring is pre-tensioned in each of the two rotational or pivoting directions, pressing the knife and the turntable into a neutral position. This neutral position corresponds to the alignment of the knife and the turntable with the axis of symmetry.
  • the diameter of the first mandrel and, if applicable, the second mandrel can each be larger than the inner diameter of the fiber-based sheath that is to be applied to the respective mandrel.
  • This design allows the fiber-based sheath to be held on the respective mandrel without the need for additional retaining elements.
  • the fiber-based sheath is thus held on the mandrel solely by clamping action.
  • a first diameter is smaller than the inner diameter of the fiber-based sheath and a second diameter is larger than the inner diameter of the fiber-based sheath. This allows the mandrel to be inserted into the fiber-based sheath without force or friction, and the sheath is then held in place by the increased diameter of the mandrel.
  • the cutting device can have one or more stripping devices for removing a detached section of the fiber-based sheath. These are arranged in a receiving direction downstream of the blade on the first and, if applicable, on the second mandrel.
  • a fan nozzle In the intake direction in front of the knife, a fan nozzle can be arranged on the cutting device for each mandrel, in particular below the respective mandrel.
  • An arrangement below the respective mandrel means that a nozzle opening of the fan nozzle is arranged in the intake direction in front of the mandrel, but at a radial distance from the mandrel so that the fan nozzle does not collide with a fiber-based sleeve arranged on the respective mandrel.
  • the fan nozzle makes it possible to blow a cut-off section, which is stripped from the respective mandrel, in a desired direction out of a working space in order to collect it, for example, in a suitable container.
  • the first and/or second mandrel can each have an elastic, in particular cut-resistant, coating, especially a plastic coating.
  • This can, for example, be in the form of polyester-urethane rubber.
  • a coating can delay excessive wear and/or dulling of the knife.
  • Each mandrel can have a groove shaped to match the cutting edge of the knife.
  • the groove is designed so that the knife extends beyond the wall thickness of the fiber-based sheath to be cut, thus reaching into a curve of the mandrel.
  • the groove which faces the knife, allows the knife to be moved behind the mandrel's surface without damaging it.
  • This configuration ensures that the fiber-based sheath can be completely severed without damaging the surface of the spike.
  • the finishing table comprises a cutting device for finishing a fiber-based cover as described herein.
  • the finishing table has a first conveying device for feeding unfinished fiber-based covers and a second conveying device for removing finished fiber-based covers.
  • This training enables the continuous processing of fiber-based casings.
  • a rotary table is arranged on the assembly table to convey the fiber-based casings to the cutting device.
  • the rotary table is designed to convey fiber-based casings from the first conveying device to the cutting device and from the cutting device to the second conveying device.
  • Designing a fabrication table with a rotary table simplifies its design and enables continuous conveying of fiber-based casings and thus continuous processing.
  • the finished fiber-based casing is removed from the mandrel.
  • the detached section is then removed from the mandrel, particularly using a stripping device, and blown out of the working area with a fan nozzle positioned in front of the mandrel in the receiving direction.
  • the Figure 1 Figure 1 shows a perspective view of a cutting device 1.
  • the cutting device 1 has a first mandrel 20 and a second mandrel 40.
  • the first mandrel 20 is rotatable about the axis of rotation D1
  • the second mandrel 40 is rotatable about the axis of rotation D2.
  • a knife 30 is arranged essentially on an axis of symmetry between these two mandrels 20 and 40.
  • the knife 30 is rotatable about its axis of rotation M.
  • the knife 30 is linearly displaceable on a carriage 31.
  • the carriage 31, in turn, is rotatably mounted on a rotary table 50.
  • the rotary table 50 and the mandrels 20 and 40 are arranged on a common, unspecified, support.
  • each fan nozzle 60 being assigned to a mandrel 20, 40.
  • the fan nozzles 60 are spaced radially apart from the respective mandrel 20, 40.
  • a stripping device 22 is assigned to the first mandrel 20.
  • a stripping device 42 is also assigned to the second mandrel 40.
  • the stripping devices 22 and 42 are arranged to be displaceable along the first axis D1 and the second axis D2, respectively.
  • the Figure 1A shows a bottom view of the cutting device 1 from the Figure 1
  • the knife 30 is positioned centrally between the two prongs 20, 40, but is not yet engaged with any fiber-based sheaths potentially located on the prongs.
  • the entire knife 30 is arranged on a turntable 50.
  • Two elastic stops, designed as springs, are arranged on this turntable 50. Together, these form a spring balancer 51.
  • the spring balancer 51 limits the rotational movement of the turntable 50 and presses it into the neutral position shown here.
  • the Figure 2 shows a perspective view of the cutting device 1 of the Figure 1 .
  • the drive devices 41 and 42 of the respective mandrels 20 and 40 are shown.
  • the two drive devices 41 and 21 are each designed as gears, which are moved by a central gear driven by a motor.
  • the mandrels 20 and 40 thus share a common drive device.
  • FIG. 1 shows a schematic view of a knife-mandrel combination consisting of a knife 30 rotatably mounted about a pivot axis M and a first mandrel 20 rotatably mounted about a pivot axis D1.
  • the knife 30 is pivotally mounted about point P on a pivotable console (not shown).
  • the pivot axis M can be aligned with the pivot axis D1 of the mandrel 20.
  • a fiber-based sleeve located on the mandrel 20 is thus clamped between the knife 30 and the mandrel 20. Rotating the mandrel 20 allows this fiber-based sheath to be separated.
  • FIG. 4 Figure 1 shows a schematic view of another knife-mandrel combination consisting of a knife 30, a first mandrel 20, and a second mandrel 40.
  • This representation essentially corresponds to the operating principle of the cutting device 1 from the Figure 1
  • the knife 30 is mounted on a slide 31 not shown here (see Figure 1 ) arranged and linearly displaceable along the direction of arrow P2.
  • the carriage 31 is mounted on a rotary table 50 (see Figure 1
  • the blade 30 is rotatably mounted about point P and pivotable in the direction of arrow P3.
  • a distance between the axis of rotation D1 and the axis of rotation M corresponds to a distance between the axis of rotation D2 and the axis of rotation M.
  • the Figures 5 to 10 This illustrates a packaging process.
  • the packaging process is explained in connection with the first mandrel 20.
  • the process steps are equally applicable to the second mandrel 40.
  • a first step which is described in the Figure 5
  • a fiber-based sheath 10 is provided relative to a first mandrel 20.
  • the stripping device 22 is visible on the first mandrel 20.
  • a second step which is described in the Figure 6
  • the fiber-based sheath 10 is applied to the mandrel 20 in the receiving direction A.
  • a knife will be 30, as in the Figures 3 and 4
  • the mandrel 20 is positioned with its axis of rotation M towards the axis of rotation D1, such that the fiber-based sleeve 10 is clamped between the knife 30 and the mandrel 20.
  • the mandrel 20, together with the fiber-based sleeve 10 mounted on it is rotated.
  • This rotation also drives the knife 30, which rotates about its axis of rotation M. Through this rotation and By applying uniform pressure of the knife 30 to the fiber-based sheath 10, a section 11 of the fiber-based sheath 10 is separated from it.
  • the now finished fiber-based sheath 10' is removed by the mandrel 20 in the opposite direction of intake A (see Figure 6 ) removed and only the cut-off section 11 remains on the mandrel 20, as shown in the Figure 8 as is evident.
  • the scraper device 22 is moved against the direction of intake A, which is indicated by the arrow in the Figure 9 This is illustrated. This movement strips the detached section 11 from the mandrel 20. As soon as the detached section 11 releases from the mandrel 20, air is blown into the fan nozzle 60, and this burst of air blows the section 11 out of the working area. The stripping device 22 is then returned to its original position as shown. Figure 5 moved.
  • the procedure described here also applies to a second mandrel.
  • the Figure 11 Figure 1 shows a top view of a finishing table 5.
  • the finishing table 5 has a cutting device 1, which has two mandrels.
  • a multitude of fiber-based sleeves 10 are located on a conveyor 70 (not shown in detail). These fiber-based sleeves 10 are transferred from the conveyor 70 to a rotary table 90, which moves them towards the cutting device 1.
  • the fiber-based sleeves 10 are finished as described above.
  • the finished fiber-based sleeves 10' are moved by the rotary table 90 to a conveyor 80 (not shown in detail) and discharged onto it.
  • the Figure 12 Figure 1 shows a perspective view of a fabrication table 5.
  • the fabrication table 5 has a cutting device 1, which has two mandrels.
  • a variety of fiber-based casings are processed with a Conveyor 70 conveys the fiber-based casings to a rotary table 90 and transfers them to the cutting device.
  • the rotary table then conveys them to the cutting device 1.
  • the fiber-based casings are processed as described above.
  • the finished fiber-based casings are then moved by the rotary table 90 to a conveyor 80 and discharged onto it.
  • the Figure 13 shows a detailed view of assembly table 5 from the Figure 12
  • This illustration shows two fiber-based sleeves 10, held by the rotary table 90 and mounted on mandrels (not visible here).
  • the fiber-based sleeves 10 are fed to the finishing table 5 via the conveyor 70.
  • the illustration shows the process just before the knife 30 of the cutting device 1 is moved towards the mandrels.
  • the right side of the image shows one of several finished fiber-based sleeves 10'. These are removed from the finishing table 5 via the conveyor 80.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (16)

  1. Dispositif de coupe (1) pour la confection d'une enveloppe à base de fibres (10), en particulier d'un récipient à base de fibres, dans lequel le dispositif de coupe (1) présente un premier mandrin (20) qui peut tourner autour d'un axe de rotation (D1) et sur lequel l'enveloppe à base de fibres (10) peut être disposée et présente un couteau (30) qui peut tourner autour d'un axe de rotation (M), dans lequel l'axe de rotation (D) du premier mandrin (20) et l'axe de rotation (M) du couteau (30) sont disposés adjacents l'un à l'autre, en particulier à un angle inférieur à 10° l'un par rapport à l'autre, de préférence inférieur à 5° l'un par rapport à l'autre, préférentiellement parallèles l'un à l'autre.
  2. Dispositif de coupe (1) selon la revendication 1, caractérisé en ce que le premier mandrin (20) présente un dispositif d'entraînement (21).
  3. Dispositif de coupe (1) selon la revendication 1 ou 2, caractérisé en ce que le couteau (30) est monté de manière librement rotative et peut être entraîné par contact avec le mandrin (20) ou une enveloppe à base de fibres (10) disposée sur le mandrin (20).
  4. Dispositif de coupe (1) selon la revendication 1 ou 2, caractérisé en ce que le couteau (30) présente un dispositif d'entraînement.
  5. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le couteau (30) pouvant tourner est disposé de manière déplaçable par rapport au premier mandrin (20), de sorte qu'une distance entre l'axe de rotation (D1) du premier mandrin (20) et l'axe de rotation (M) du couteau (30) est réglable.
  6. Dispositif de coupe selon la revendication 5, caractérisé en ce que le couteau (30) est disposé sur un chariot (31) ou est disposé sur une console pivotante.
  7. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de coupe (1) présente un deuxième mandrin (40) qui peut tourner autour d'un axe de rotation (D2) et sur lequel une autre enveloppe à base de fibres (10) peut être disposée, dans lequel l'axe de rotation (D) du deuxième mandrin (20) et l'axe de rotation (M) du couteau (30) sont disposés adjacents l'un à l'autre, en particulier à un angle inférieur à 10° l'un par rapport à l'autre, de préférence inférieur à 5° l'un par rapport à l'autre, de préférence parallèles l'un à l'autre.
  8. Dispositif de coupe (1) selon la revendication 7, caractérisé en ce que le deuxième mandrin (40) présente un dispositif d'entraînement (41).
  9. Dispositif de coupe (1) selon la revendication 7 ou 8, caractérisé en ce que le couteau (30) est disposé sur un plateau tournant (50) pour le centrage entre le premier mandrin (20) et le deuxième mandrin (40).
  10. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'un diamètre du premier mandrin (20) et le cas échéant du deuxième mandrin (40) est respectivement supérieur à un diamètre intérieur de l'enveloppe à base de fibres (10).
  11. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'un dispositif de raclage (22, 42) est disposé dans une direction de réception (A) après le couteau (30) sur le premier mandrin (20) et le cas échéant sur le deuxième mandrin (40).
  12. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'une buse en éventail est disposée dans une direction de réception (A) devant le couteau (30) par mandrin (20, 40), en particulier en dessous du mandrin (20, 40) respectif.
  13. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que chaque mandrin (20, 40) présente un revêtement élastique, en particulier résistant aux coupures.
  14. Dispositif de coupe (1) selon l'une quelconque des revendications 1 à 13, caractérisé en ce que chaque mandrin (20, 40) présente une rainure qui est formée en fonction du bord de coupe du couteau de sorte que le couteau dépasse de l'épaisseur de paroi de l'enveloppe à base de fibres à couper.
  15. Table de confection (5) pour la confection d'enveloppes à base de fibres (10) comprenant un dispositif de coupe pour la confection d'une enveloppe à base de fibres (10) selon l'une quelconque des revendications 1 à 14, caractérisée en ce que la table de confection (5) présente un premier dispositif de convoyage (70) pour l'acheminement d'enveloppes à base de fibres (10) non confectionnées et présente un deuxième dispositif de convoyage (80) pour l'évacuation d'enveloppes à base de fibres (10') confectionnées.
  16. Table de confection (5) selon la revendication 15, caractérisée en ce qu'un plateau tournant (90) pour le convoyage des enveloppes à base de fibres (10) vers le dispositif de coupe (1) est disposé sur la table de confection (5).
EP21778468.5A 2020-09-21 2021-09-20 Dispositif de coupe et table de manufacture comprenant le dispositif Active EP4214031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01191/20A CH717885A1 (de) 2020-09-21 2020-09-21 Schneidvorrichtung und Konfektioniertisch.
PCT/EP2021/075808 WO2022058589A1 (fr) 2020-09-21 2021-09-20 Dispositif de coupe et table de fabrication comportant le dispositif

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EP4214031A1 EP4214031A1 (fr) 2023-07-26
EP4214031C0 EP4214031C0 (fr) 2025-12-10
EP4214031B1 true EP4214031B1 (fr) 2025-12-10

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US (1) US20230373123A1 (fr)
EP (1) EP4214031B1 (fr)
CN (1) CN116261506A (fr)
CH (1) CH717885A1 (fr)
WO (1) WO2022058589A1 (fr)

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US3545321A (en) * 1963-05-13 1970-12-08 Vernon A Phelps Close tolerance gasket making
DD114778A1 (fr) * 1974-07-23 1975-08-20
CN1057019A (zh) * 1991-03-20 1991-12-18 温岭县蔡洋岸头日用机械厂 薄壁筒双头多功能切口机
CN2169506Y (zh) * 1993-07-15 1994-06-22 李志伟 转子式薄壁筒内切切口机
JP2759417B2 (ja) * 1993-12-27 1998-05-28 株式会社日本製鋼所 中空成形品の上バリ回収方法および中空製品の製造装置
US5690007A (en) * 1996-03-12 1997-11-25 The Pillsbury Company Cutting apparatus for obtaining a specimen of a food product container
CN2332521Y (zh) * 1998-07-08 1999-08-11 李志伟 一种薄壁筒内切切口机
US6763752B2 (en) * 2000-11-02 2004-07-20 Delaware Capital Formation, Inc. Apparatus for trimming a flange on a cylindrical opening of a plastic container
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ES2238122B1 (es) * 2002-11-15 2006-11-01 Construcciones Mecanicas Maer, S.A. Cortadora horizontal de botellas de doble cuerpo unidas por el cuello.
US6928913B2 (en) * 2003-09-25 2005-08-16 Plastipak Packaging, Inc. Method and apparatus for trimming containers
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EP2522772A1 (fr) * 2011-05-11 2012-11-14 Ecoxpac A/s Conteneur
WO2015076823A1 (fr) * 2013-11-22 2015-05-28 Silgan Containers Llc Appareil de fabrication de conserves comprenant une goulotte de détoureuse
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EP3375592B1 (fr) 2017-03-16 2019-06-19 BillerudKorsnäs AB Conteneur
FR3071183B1 (fr) * 2017-09-21 2019-12-20 Saint-Gobain Placo Procede et dispositif de decoupe d'un matelas ou d'un panneau en laine minerale ou d'une plaque ou d'un panneau en materiau de construction poreux

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WO2022058589A1 (fr) 2022-03-24
EP4214031C0 (fr) 2025-12-10
US20230373123A1 (en) 2023-11-23
CN116261506A (zh) 2023-06-13
EP4214031A1 (fr) 2023-07-26
CH717885A1 (de) 2022-03-31

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