EP4351871A1 - Procédé de pré-conditionnement d'une bande de matériau d'emballage à base de matière fibreuse dans un processus d'emballage par moulage, et dispositif de pré-conditionnement pour la mise en oeuvre du procédé - Google Patents

Procédé de pré-conditionnement d'une bande de matériau d'emballage à base de matière fibreuse dans un processus d'emballage par moulage, et dispositif de pré-conditionnement pour la mise en oeuvre du procédé

Info

Publication number
EP4351871A1
EP4351871A1 EP22733574.2A EP22733574A EP4351871A1 EP 4351871 A1 EP4351871 A1 EP 4351871A1 EP 22733574 A EP22733574 A EP 22733574A EP 4351871 A1 EP4351871 A1 EP 4351871A1
Authority
EP
European Patent Office
Prior art keywords
packaging material
moistening
material web
web
unit
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
EP22733574.2A
Other languages
German (de)
English (en)
Inventor
Heike Stotz
Matthias KLAUSER
Hans Albrecht
Leonard Vogt
Lisa Oberst
Martin Beck
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.)
Syntegon Technology GmbH
Original Assignee
Syntegon Technology 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 Syntegon Technology GmbH filed Critical Syntegon Technology GmbH
Publication of EP4351871A1 publication Critical patent/EP4351871A1/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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/741—Moistening; Drying; Cooling; Heating; Sterilizing
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0077—Shaping by methods analogous to moulding, e.g. deep drawing techniques
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/36—Moistening and heating webs to facilitate mechanical deformation and drying deformed webs

Definitions

  • Packaging molding processes such as compression molding, deep drawing and hydroforming, are already known for the three-dimensional shaping of packaging material webs, in which moistening and/or heating takes place in a molding device, with a steam applicator being used in a hold-down device of the molding device for moistening of the packaging material to be deformed is provided, and wherein mold parts of the shaping device are provided with a heating unit in order to heat up the packaging material to be deformed.
  • the packaging material webs are moistened and/or heated in the molding device itself, resulting in a short exposure time of moisture and heat to the packaging material webs.
  • the invention is based on a method for preconditioning a packaging material web based on, in particular natural, fiber material, in particular a packaging paper web, in a packaging molding process, the packaging material web being moistened in at least one method step by means of a moistening unit of a preconditioning device and wherein in at least one method step, the packaging material web is heated by means of a heating unit of the preconditioning device.
  • the packaging material web is heated by means of the heating unit after it has been moistened by means of the moistening unit and before the packaging material web is fed to a shaping device in which the packaging material web is formed into packaging.
  • the packaging forming process is preferably a process in which packaging, in particular paper packaging, is formed, in particular three-dimensionally formed, at least by means of the forming device of a production plant from the packaging material web preconditioned by means of the preconditioning device.
  • Preconditioning is to be understood in particular as a treatment of the packaging material web, which is preferably based on natural fiber material, before the packaging material web is reshaped into packaging, in which at least one physical variable of the packaging material web is specifically changed or adjusted before reshaping.
  • at least two physical variables, in particular a moisture content, preferably a water content, and a temperature, of the web of packaging material are preferably changed or set in a targeted manner before forming. It is also conceivable that a number of physical variables of the web of packaging material that deviates from two is purposefully changed or set as a result of the preconditioning.
  • the preconditioning of the packaging material web is preferably carried out by means of the preconditioning device.
  • the packaging material web is moistened by means of the moistening unit of the preconditioning device in such a way that the moisture content of the packaging material web is in particular more than 10%, preferably more than 20%, preferably more than 30%, particularly preferably more than 50% and very particularly preferably less than 100%, in particular before the packaging material web is heated by means of the heating unit of the preconditioning device.
  • the moisture content of the packaging material web is preferably a ratio of a maximum mass of the water contained in the material of the packaging material web to a maximum mass of the anhydrous material of the packaging material web.
  • the web of packaging material is preferably moistened by means of the humidification unit of the preconditioning device in such a way that the web of packaging material, in particular before it is heated up by means of the heating unit, has an absolute humidity of in particular more than 30%, preferably more than 40%, preferably more than 50% and very particularly preferably less than 70%.
  • the packaging material web after being moistened by means of the moistening unit, has an absolute moisture content which has a value between 30% and 60%.
  • the packaging material web is preferably heated to a temperature of, in particular, less than 310 °C, preferably less than 260 °C, preferably less than 200 °C and very particularly preferably heated to more than 40° C., in particular to reduce the moisture content of the packaging material web to 15% to 35% before the packaging material web is reshaped by means of the shaping device.
  • the web of packaging material is preferably heated without contact by means of the heating unit.
  • the heating unit is preferably provided for contactless heating of the packaging material web, in particular by means of heat radiation.
  • the heating unit can be designed, for example, as an infrared heating unit or the like.
  • the web of packaging material to be heated by means of heat conduction, for example by means of contact between the web of packaging material and a heated heating element of the heating unit, for example with a heating roller of the heating unit over which the web of packaging material is moved, with a fixed heating element of the Heating unit against which the web of packaging material rests at least temporarily, in particular against a contact element of a pressure chamber of the preconditioning device, or the like.
  • the web of packaging material is preferably moistened and/or heated by means of the preconditioning device before it is fed to the shaping device.
  • the moistening unit and/or the heating unit of the preconditioning device are/is preferably arranged in front of the shaping device, viewed along a main transport direction of the packaging material web.
  • the main conveying direction of the packaging material web is preferably a direction along which the packaging material web is moved during the packaging forming process by means of a transport device of the production facility.
  • the packaging material web is preferably moved from the preconditioning device to the forming device along the main transport direction.
  • the humidification unit and the heating unit are preferably arranged spatially outside the Formvor direction.
  • the humidification unit and the heating unit are preferably two separate units.
  • the moistening unit and the heating unit are preferably arranged one behind the other, viewed along the main transport direction of the packaging material web.
  • the moistening unit is arranged first and then the heating unit is arranged.
  • the humidification unit and the heating unit of the pre-conditioning device are designed as a common unit, for example arranged in a common housing, with an arrangement in a common housing preferably first humidifying and then heating of the web of packaging material, moistening and heating of the web of packaging material essentially at the same time or first heating and then moistening of the web of packaging material.
  • the humidification unit and the heating unit can be arranged in one, in particular individual, pressure chamber of the preconditioning device, in particular in order to advantageously realize humidification and/or heating with an internal pressure in the pressure chamber that is higher than the ambient pressure surrounding the pressure chamber.
  • the pressure chamber preferably has at least one movably mounted pressure chamber closure part, in particular to allow a transport movement, in particular at least a part, of the web of packaging material into the pressure chamber and the pressure chamber after a movement of the To seal packaging material web in an interior of the pressure chamber.
  • At least one section of the web of packaging material in particular when the web of packaging material is configured as an unwindable roll, or the web of packaging material itself, particularly when the web of packaging material is configured as a cut material web section, is moistened and/or heated, while at least one another section of the packaging material web or another packaging material web designed as a cut material web section is arranged in the forming device and is formed into a packaging, in particular to realize an intermittent production method.
  • the humidification unit and/or the heating unit are preferably designed to be stationary, in particular for an intermittent production method, except for relative movements of the humidification unit and/or the heating unit relative to one another.
  • the moistening unit and/or the heating unit can be designed to move with the web of packaging material along the main transport direction of the web of packaging material in order to implement continuous production, as the person skilled in the art already knows, for example, in the case of sealing devices for sealing packaging in continuous production processes is known.
  • the moistening unit and/or the heating unit are/is designed to move with the packaging material web along the main transport direction of the packaging material web to implement an intermittent production method, in particular by a long exposure time of the moistening unit and/or the heating unit to enable the packaging material web.
  • Further configurations of an arrangement and/or a sequence of the preconditioning device and/or the method according to the invention which appear reasonable to a person skilled in the art are also conceivable.
  • More than 50%, preferably more than 70%, particularly preferably more than 80% and very particularly preferably 99.9% of a total volume of the packaging material web is formed from paper in the packaging material web.
  • Paper preferably forms a base material of the web of packaging material.
  • the web of packaging material can be single-ply or multi-ply be trained.
  • the web of packaging material is preferably designed as a web of packaging paper.
  • the packaging material web it is also conceivable for the packaging material web to be in the form of packaging cardboard webs, packaging cardboard webs, packaging paper fleece webs or other packaging material webs based on fiber material that appear sensible to a person skilled in the art.
  • the packaging material web in particular the packaging paper web
  • the packaging material web, in particular the packaging paper web can be designed as cut-to-size material web sections, in particular as cut-to-size paper web sections, which are intended to be fed individually to the packaging molding process.
  • “Provided” is to be understood as meaning in particular specially designed, specially furnished and/or specially equipped.
  • the fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the configuration of the method according to the invention can advantageously have a positive influence on the quality of shaped packaging.
  • a small deviation in shape of the formed packaging can be made possible in comparison to the calculated or desired target dimensions of packaging, in particular when paper is used as the base material of the web of packaging material.
  • by moistening the packaging material web, in which the packaging material web has an absolute moisture content of 15% to 35% after moistening, or after moistening and after heating advantageously positive effects on the formability of the packaging material web can be achieved, in particular when using paper as the base material of the packaging material web.
  • hydrogen bridges between fibers of the web of packaging material can be weakened, a low flexural rigidity of the web of packaging material can be achieved and a high elongation at break of the web of packaging material can be achieved.
  • a fiber network of the packaging material web is softened. Due to the heating, a change in a breaking force of the packaging material web and an elongation at break of the packaging material web can advantageously be achieved, in particular a reduction in a breaking force and an increase in the rupture elongation of the packaging material web compared to an unheated state of the packaging material web.
  • material moisture in the packaging material web causes a change in the glass transition temperature of components of the packaging material web during heating of the packaging material web, in particular compared to an unmoisturized state of the packaging material web, which has an advantageous effect on the forming behavior of the packaging material web.
  • both the temperature and the humidity can advantageously be influenced separately, in particular when the moistening unit and the heating unit are connected in series along the main transport direction of the packaging material web.
  • the packaging material web is moistened in accordance with use by means of the moistening unit and/or is heated in accordance with use by means of the heating unit. Moistening and/or heating preferably only takes place in partial areas of the packaging material web that are arranged in the molding device for producing packaging.
  • the packaging material web is preferably only moistened and/or heated in a partial area that has a maximum transverse extension, in particular a maximum width, which is less than a maximum transverse extension, in particular a maximum web width, of the entire packaging material web.
  • the maximum transverse extension preferably extends along a direction which runs perpendicularly to the main transport direction of the packaging material web and parallel to a main extension plane of the packaging material web.
  • the web of packaging material is preferably not moistened and/or heated over the maximum transverse extent, in particular not over the maximum web width.
  • the web of packaging material is preferably partially moistened and/or heated.
  • the packaging material web is preferably only moistened and/or heated on partial areas of the packaging material web.
  • the partial areas of the web of packaging material that are moistened and/or heated have the size of an area required for the packaging to be formed by means of the forming device.
  • Before- edge regions of the web of packaging material are preferably not moistened and/or heated in a targeted manner in the case of moistening in accordance with use and/or heating in accordance with use.
  • edge areas the edge strips of the packaging material web arranged on both sides of the packaging material web, have a maximum width of in particular less than 50 mm, preferably less than 30 mm and particularly preferably less than 20 mm, in particular in each case measured from an outer edge of the packaging material web in the direction of a center of the packaging material web, are formed, are not specifically moistened.
  • the moistening unit and/or the heating unit in particular along the direction perpendicular to the main transport direction and parallel to the main extension plane, has an area of action on the packaging material web that is smaller than a maximum transverse extension, in particular than a maximum web width, of the packaging material web.
  • the configuration of the method according to the invention can advantageously have a positive influence on the quality of shaped packaging.
  • targeted moistening and/or heating of the web of packaging material over the entire area can be made possible.
  • the formation of waves in the edge area of the web of packaging material can be counteracted in a targeted manner.
  • Reliable transportability of the web of packaging material can advantageously be made possible.
  • a positive effect can be achieved in relation to a homogeneous moisture and temperature distribution, in particular in the partial areas or partial areas of the web of packaging material that are provided for forming by means of the forming device.
  • the web of packaging material Before it is fed to a forming device, in particular to the one already mentioned, in which the web of packaging material is formed into packaging, the web of packaging material is preferably moistened, in particular homogeneously, by means of the moistening unit and/or by means of the heating unit, in particular homogeneously , heated.
  • the web of packaging material is preferably moistened, in particular homogeneously, by means of the moistening unit and/or heated, in particular homogeneously, by means of the heating unit before being fed to the forming device in which the web of packaging material is formed into packaging, preferably in terms of time and/or space.
  • the packaging ma- The web of material is preferably evenly moistened with respect to a maximum total material thickness of the web of packaging material by means of the moistening unit and/or heated by means of the heating unit before the web of packaging material is formed into packaging by means of the shaping device.
  • the packaging material web is preferably continuously moistened by the moistening unit and/or heated by the heating unit over the maximum total material thickness of the packaging material web before the packaging material web is formed into packaging by the shaping device.
  • the preconditioning device has a monitoring unit, such as a moisture detection unit and/or a temperature detection unit, by means of which homogeneous moistening and/or homogeneous heating of the packaging material web is monitored.
  • a positive influence on the quality of shaped packaging can advantageously be realized.
  • a targeted moistening and/or heating of the web of packaging material that is appropriate to use can be made possible.
  • a positive effect in relation to a homogeneous moisture and temperature distribution, particularly in the partial areas or partial areas of the web of packaging material intended for forming by means of the forming device, can be achieved, in particular monitored.
  • the packaging material web is moistened by means of the moistening unit and/or heated by means of the heating unit during a, in particular clocked, transport standstill of the packaging material web. Moistening and/or heating of the web of packaging material preferably takes place while the web of packaging material is stationary along the main transport direction and while packaging is being produced in the shaping device.
  • At least one section of the web of packaging material is preferably moistened and/or heated, particularly when the web of packaging material is configured as an unwindable roll, or the web of packaging material itself, particularly when the web of packaging material is configured as a cut material web section, while at least another section of the web of packaging material or another packaging material web designed as a cut material web section in the forming process direction is arranged and is formed into a package.
  • Clocked moistening and/or clocked heating of the web of packaging material preferably takes place.
  • a cycle for moistening and/or for heating is preferably coordinated with a cycle of the molding device in which a packaging is produced from the web of packaging material arranged in the molding device by means of the molding device.
  • the packaging material web in particular the partial surface of the packaging material web intended for forming, is preferably moistened and/or heated during a forming cycle of the forming device before the packaging material web, in particular the partial surface of the packaging material web intended for forming, is fed to the forming device for forming .
  • a partial area of the packaging material web or a material web section is moistened essentially at the same time, while another partial area of the packaging material web or another material web section is being heated and an additional partial area of the packaging material web or an additional material web section is being shaped in the shaping device.
  • a partial area of the packaging material web or a material web section is moistened and heated essentially at the same time as a further partial area of the packaging material web or a further material web section is formed in the forming device.
  • Other cycles of moistening and/or heating together with forming that appear reasonable to a person skilled in the art are also conceivable.
  • a positive influence on the quality of shaped packaging can advantageously be realized.
  • homogeneous moistening and/or heating of the web of packaging material can be made possible.
  • a positive effect in relation to a homogeneous moisture and temperature distribution, in particular in the partial surfaces or partial areas of the web of packaging material intended for forming by means of the forming device, can be achieved, in particular monitored.
  • a standstill in transport can be used for preconditioning the packaging material web, in particular while a partial area of the packaging material web or a material web section is being reshaped by means of the shaping device.
  • a processing time of the molding device during a production process of packaging can be used particularly advantageously, in particular in order to be able to counteract a so-called bottleneck at individual stations in the manufacturing process.
  • At least one moistening element of the moistening unit is moved along a direction running transversely, in particular at least substantially perpendicularly, to a direction, in particular to the main transport direction of the web of packaging material already mentioned above.
  • the packaging material web is moved along a direction that runs transversely, in particular at least essentially perpendicularly, to a main transport direction of the packaging material web that is already mentioned above, in order to moisten the packaging material web.
  • the humidification unit is moved towards the humidification element of the humidification unit.
  • the term “essentially perpendicular” is intended here to define in particular an alignment of a direction relative to a reference direction, with the direction and the reference direction, viewed in particular in a projection plane, enclosing an angle of 90° and the angle has a maximum deviation of, in particular, less than 8°, advantageously less than 5° and particularly advantageously less than 2°.
  • the moistening element is preferably moved along a direction running at least essentially perpendicularly to the main plane of extension of the packaging material web.
  • the moistening element is preferably moved along a direction running at least substantially perpendicular to a surface of the packaging material web, the surface extending at least substantially parallel to the main transport direction of the packaging material web.
  • “Essentially parallel” is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, with the direction relative to the reference direction deviating in particular by less than 8°, advantageously less than 5° and particularly advantageously less than 2°.
  • the moistening unit can have a single moistening element or a large number of the same moistening elements or different moistening elements to achieve a particularly homogeneous and partial moistening of the web of packaging material.
  • the humidifying element of the humidifying unit can as a stamp, as a roller, as a fluid basin, in particular as a water basin, as a spray nozzle or the like.
  • the moistening element can be provided for contactless moistening, especially when the moistening element is configured as a spray nozzle or the like, or for contact moistening, especially when the moistening element is configured as a stamp, roller or the like, of the web of packaging material .
  • the moistening element preferably comprises at least one fluid reservoir area, in particular a water storage area, for receiving a moistening fluid for delivery to the web of packaging material.
  • the fluid reservoir area can be designed, for example, as a spongy area, as a tub-shaped area, as a tank, as a nozzle antechamber, as a fluid line or as another fluid reservoir area that a person skilled in the art considers sensible.
  • the moistening element as a fluid basin
  • the fluid basin is moved toward the web of packaging material until the web of packaging material at least partially comes into contact with the humidifying fluid arranged in the fluid basin.
  • the moistening element as a roller for example, the roller is moved towards the web of packaging material until the web of packaging material at least partially comes into contact with the roller.
  • the stamp is moved toward the web of packaging material, for example, until the web of packaging material comes at least partially into contact with the stamp.
  • the spray nozzle is moved in the direction of the packaging material web, for example, in order to vary the size of a surface of the packaging material web to be moistened.
  • Other configurations and/or movements of the moistening element that appear sensible to a person skilled in the art for a particularly partial and/or homogeneous moistening of the web of packaging material are also conceivable.
  • the moistening unit can have a single moistening element or a large number of the same moistening elements or different moistening elements to achieve a particularly homogeneous and partial moistening of the web of packaging material.
  • the humidification unit with a large number of humidification elements it is conceivable that the humidification elements are evenly distributed, for example in the form of a grid, in particular in the form of rows and/or lines, in the form of a zigzag pattern, in Shape of a wave pattern o. It is conceivable, for example, that the moistening elements are arranged in segments, in particular in order to implement partial moistening of partial areas of the web of packaging material.
  • the moistening element or the moistening elements is/are preferably moved in a clocked manner along the direction running transversely, in particular at least essentially perpendicularly, to the main transport direction of the packaging material web.
  • a cycle in which the moistening element or the moistening elements is/are moved is preferably coordinated with a cycle of the shaping device.
  • the moistening element or the moistening elements is/are moved analogously to a closing of the forming device towards the web of packaging material and dwell/remain on the web of packaging material during a closed state of the forming device until the forming device is opened again.
  • targeted wetting of the web of packaging material over the entire surface can be made possible.
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial surfaces or partial areas of the web of packaging material intended for forming by means of the forming device.
  • a contact time of a fluid can be conveniently and structurally simply varied before geous.
  • a moistening fluid level of a moistening fluid in the moistening unit is changed, in particular as a function of a process parameter, in particular a transport speed of the packaging material web.
  • the moistening fluid can be in the form of water or water mixed with at least one additive, in particular sugar, starch, surfactants or the like.
  • Other configurations of the humidifying fluid that appear sensible to a person skilled in the art are also conceivable.
  • a change in the level of the humidifying fluid within the humidifying element designed as a fluid basin preferably provides an alternative configuration a movement of the moistening element along the direction running transverse to the main transport direction.
  • the moistening fluid level of the moistening fluid within the moistening element designed as a fluid basin takes place in addition to a movement of the moistening element along the direction running transverse to the main transport direction.
  • the moistening fluid level of the moistening fluid in the moistening unit is preferably changed as a function of a transport speed of the packaging material web along the main transport direction.
  • the moistening fluid level of the moistening fluid is changed, in particular increased, to moisten the web of packaging material while the web of packaging material is at a standstill, preferably in comparison to a moistening fluid level of the moistening fluid during a transport movement of the web of packaging material along the main transport direction at a transport speed of the web of packaging material unequal to 0 m/ s.
  • the packaging material web preferably has a transport speed of 0 m/s during a standstill along the main transport direction.
  • the packaging material web in particular at least a portion of the packaging material web, is moved over the moistening element designed as a fluid basin and then stopped above it to moisten the web of packaging material by means of the humidification element designed as a fluid basin.
  • the level of the moistening fluid within the moistening element designed as a fluid basin is increased in such a way that the packaging material web, in particular at least one underside of the packaging material web, comes into contact with the moistening fluid.
  • the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the level of the liquid within the level of the level of the level of the level of the level of the level of the level of the basin of the basin is lowered , moved further along the main transport direction, in particular moved to the heating unit, preferably before the packaging material web is fed to the forming device.
  • the level of the humidifying fluid is preferably the same as that of the humidifying fluid actively changed within the fluid basin by means of
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial surfaces or partial areas of the web of packaging material intended for forming by means of the forming device.
  • a contact time of a fluid can advantageously be varied in a comfortable and structurally simple manner.
  • Cycled moistening of the web of packaging material can preferably be made possible, in particular moistening that is advantageously coordinated with a cycle of the shaping device.
  • a moistening fluid in particular the aforementioned one, of the moistening unit is heated to a temperature of between 20° C. and 90° C. in order to moisten the web of packaging material.
  • the moistening fluid of the moistening unit is used to moisten the web of packaging material, in particular to a temperature between 30 °C and 80 °C, preferably to a temperature between 40 °C and 80 °C and particularly preferably to a temperature with a value between 60 °C and 75 °C.
  • the moistening fluid of the moistening unit is heated to a temperature of 70° C. to moisten the web of packaging material.
  • the moistening fluid that is heated is preferably water mixed with at least one additive, in particular sugar, starch, surfactants or the like.
  • a positive influence on the quality of shaped packaging can be realized. be ted.
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial surfaces or partial areas of the web of packaging material intended for forming by means of the forming device.
  • a positive effect on fluid absorption by the web of packaging material can advantageously be achieved, particularly in the case of an embodiment of the web of packaging material with paper as the base material.
  • At least one ultrasonic unit of the preconditioning device acts on at least the moistening unit, in particular on at least one, in particular the previously mentioned, moistening fluid during moistening of the web of packaging material.
  • the ultrasonic unit acts on a moistening element that can be brought into direct contact with the web of packaging material or on the moistening fluid that can be brought into direct contact with the web of packaging material.
  • the ultrasonic unit is used to act on the moistening element designed as a fluid reservoir, on the moistening element designed as a roller, on the moistening element designed as a stamp or on another moistening element that a person skilled in the art considers useful, in particular to mechanical vibrations on the moistening element or in the to realize humidifying fluid.
  • An ultrasonic fluid bath in particular an ultrasonic water bath, can preferably be implemented for the web of packaging material by means of the action of the ultrasonic unit on the moistening element designed as a fluid basin.
  • mechanical vibrations are transmitted from the humidifying element designed as a fluid basin to the humidifying fluid located within the humidifying element designed as a fluid basin.
  • the ultrasonic unit preferably has at least one vibration exciter, which is preferably arranged on the humidifying element.
  • the vibration exciter can have any design that a person skilled in the art deems appropriate, such as a design as a piezo exciter, a magnetic exciter or the like.
  • the design according to the invention can advantageously have a positive influence on the quality of shaped packaging.
  • a positive effect can be achieved with regard to a homogeneous moisture distribution, in particular in the partial surfaces or partial areas of the packaging material web intended for forming by means of the forming device. be enough.
  • a positive effect on fluid absorption of the web of packaging material can advantageously be achieved, particularly in the case of a configuration of the web of packaging material with paper as the base material.
  • a high absolute moisture content of the web of packaging material can be achieved, particularly when the web of packaging material is designed with paper as the base material.
  • a surface fluid which is arranged on the packaging material web after the packaging material web has been moistened, in particular is still located on the surface of the packaging material web and not in the web of packaging material has been drawn in is at least partially taken up or at least partially stripped off by means of at least one receiving and/or stripping element of the moistening unit.
  • the surface fluid which is arranged on the packaging material web after wetting the packaging material web, is in particular still on the surface of the packaging material web and not is drawn into the packaging material web, is introduced into the fiber structure of the packaging material web by means of a force exerted by the receiving and/or stripping element of the humidifying unit.
  • the receiving and/or stripping element can be designed, for example, as a squeegee, as a roller, in particular as a roller provided in addition to moistening, as a flexible lamella, in particular as a rubber lamella, as a sponge or as another element that a person skilled in the art considers useful.
  • a positive influence on the quality of shaped packaging can advantageously be realized.
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial areas or partial areas of the packaging material web intended for forming by means of the forming device.
  • a positive effect on fluid absorption of the web of packaging material can advantageously be achieved, particularly in the case of a configuration of the web of packaging material with paper as the base material.
  • a moisture content can be specifically influenced before heating in order to after heating, optimal absolute moisture content of the packaging material web, in particular when the packaging material web is configured with paper as the base material, can be achieved for reshaping by means of the shaping device.
  • the packaging material web is preferably heated by the heating unit after the packaging material web has been moistened by the moistening unit and before the packaging material web is fed to the shaping device.
  • the heating unit is preferably arranged spatially between the moistening unit and the shaping device.
  • the heating unit can be provided for heating the packaging material web by means of radiation, by means of conduction and/or by means of convection.
  • the web of packaging material is preferably heated by the heating unit to a temperature of between 50° C. and 300° C., in particular before the web of packaging material is fed to the shaping device.
  • softening temperatures of different components of the web of packaging material can be reached, in particular in the case of an embodiment of the web of packaging material with paper as the base material, in order to realize a particularly advantageous formability of the web of packaging material in the shaping device.
  • the packaging material web is heated up or at least partially dried, in particular if the packaging material web is designed with paper as the base material, by means of the heating unit by thermal radiation, which particularly advantageously enables homogeneous heating or homogeneous drying of the packaging material web.
  • the heating unit comprises a large number of heating elements, which are arranged in segments, for example, and which are designed to be shieldable, in particular in order to be able to achieve particularly advantageous local heating of the packaging material web that is suitable for use, in particular in a clocked packaging molding process.
  • the invention is based on a preconditioning device, in particular the one already mentioned above, for carrying out the device according to the invention Method, wherein the preconditioning device at least one, in particular the previously mentioned, moistening unit for moistening a packaging material web based on fiber material, in particular the already mentioned, packaging material web, in particular a packaging paper web, and at least one, in particular the already mentioned, heating unit heating the packaging material web based on fiber material, in particular the packaging paper web, wherein the moistening unit and the heating unit are arranged in front of a shaping device, viewed along a main transport direction of the packaging material web.
  • the preconditioning device at least one, in particular the previously mentioned, moistening unit for moistening a packaging material web based on fiber material, in particular the already mentioned, packaging material web, in particular a packaging paper web, and at least one, in particular the already mentioned, heating unit heating the packaging material web based on fiber material, in particular the packaging paper web, wherein the moistening unit and the heating unit are arranged in front
  • the moistening unit is arranged first and then the heating unit is arranged, and/or that the moistening unit and the heating unit are arranged in a common housing, in particular a pressure chamber.
  • the configuration of the preconditioning device according to the invention can advantageously have a positive influence on the quality of shaped packaging.
  • a softening of a fiber network of the packaging material web can advantageously be achieved by heating the packaging material web, in particular after moistening. Due to the heating, a change in a breaking force of the packaging material web and an elongation at break of the packaging material web can advantageously be achieved, in particular a reduction in a breaking force and an increase in the rupture elongation of the packaging material web compared to an unheated state of the packaging material web.
  • material moisture in the web of packaging material during heating of the web of packaging material causes a change in the glass transition temperature of components of the web of packaging material, in particular in comparison to an unmoisturized state of the web of packaging material, which has an advantageous effect on the forming behavior of the web of packaging material.
  • both the temperature and the humidity can advantageously be influenced separately, especially in the case of a Switching of the moistening unit and the heating unit along the main transport direction of the packaging material web.
  • the preconditioning device comprises at least one ultrasonic unit, which is intended to act on the humidifying unit.
  • the moistening unit has at least one water bath and/or at least one moistening element, in particular a roller, a stamp, a spray nozzle or the like, which can be excited by means of the ultrasonic unit.
  • the ultrasonic unit preferably has at least one vibration exciter, which is preferably arranged on the humidification element or is intended to act on the water bath.
  • the water bath is preferably formed by the humidifying element designed as a fluid basin with a humidifying fluid arranged within the fluid basin.
  • the vibration exciter can have any configuration that a person skilled in the art considers sensible, such as a configuration as a piezo exciter, a magnetic exciter or the like designed as a stamp moistening element or is arranged on the designed as a spray nozzle moistening element, in particular to transmit mechanical vibrations to the moistening element.
  • a positive influence on the quality of shaped packaging can advantageously be realized.
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial surfaces or partial areas of the web of packaging material provided for forming by means of the forming device.
  • a positive effect on the absorption of fluid by the web of packaging material can be achieved, particularly in the case of an embodiment of the web of packaging material with paper as the base material.
  • a high absolute moisture content of the web of packaging material can advantageously be achieved, in particular when the web of packaging material is designed with paper as the base material.
  • the moistening unit has at least one receiving and/or stripping element, in particular the aforementioned one is intended to at least partially absorb or at least partially wipe off a surface fluid that is arranged on the packaging material web after wetting of the packaging material web, in particular that is still on the surface of the packaging material web and has not been drawn into the packaging material web.
  • the receiving and/or stripping element of the moistening unit in particular before the packaging material web is heated by means of the heating unit, is provided for the purpose of removing the surface fluid that is arranged on the packaging material web after the packaging material web has been moistened , In particular, is still on the surface of the packaging material web and is not drawn into the packaging material web, bring possessance by means of a force in the fiber structure of the packaging material web.
  • a positive influence on the quality of shaped packaging can advantageously be achieved.
  • a positive effect can be achieved in relation to a homogeneous moisture distribution, in particular in the partial areas or partial areas of the packaging material web intended for forming by means of the forming device.
  • a positive effect on fluid absorption of the web of packaging material can advantageously be achieved, particularly in the case of a configuration of the web of packaging material with paper as the base material.
  • a moisture content can advantageously be influenced in a targeted manner before heating, in order to be able to achieve optimum absolute moisture content of the packaging material web after heating, in particular when the packaging material web is configured with paper as the base material, for forming by means of the forming device.
  • the invention proposes a production plant with at least one preconditioning device according to the invention and with at least one forming device for forming packaging, in particular paper packaging, from a packaging material web, in particular packaging paper web, preconditioned by means of the preconditioning device, with the preconditioning device being viewed along a main transport direction of the packaging material web is arranged in front of the forming device.
  • the Formvor direction preferably comprises a stamp and a die to a, in particular special three-dimensional, reshaping of the packaging material web to a Packaging.
  • the shaping device includes, in particular in addition to the heating unit of the preconditioning device, a shaping heating unit, by means of which heat can be introduced into the packaging material web during a shaping process.
  • the molding device has a configuration already known to a person skilled in the art.
  • the production plant preferably comprises at least the transport device, by means of which the web of packaging material can be moved along the main transport direction during the packaging forming process.
  • the transport device can be designed as a roller transport device, as a belt transport device, as a chain transport device or as another transport device that appears useful to a person skilled in the art.
  • the configuration of the production plant according to the invention can advantageously enable a high quality of shaped packaging, in particular in the case of a configuration of the packaging material web with paper as the base material.
  • the method according to the invention, the preconditioning device according to the invention and/or the production plant according to the invention should/should not be limited to the application and embodiment described above.
  • the method according to the invention, the preconditioning device according to the invention and/or the production system according to the invention can/can have a number of individual elements, components and units as well as method steps that differs from the number specified here in order to fulfill a function described herein.
  • values lying within the specified limits should also be considered disclosed and can be used as desired.
  • FIG. 1 A production plant according to the invention at least for the production of packaging in a schematic representation
  • FIG. 2 shows a detailed view of a preconditioning device according to the invention of the production plant according to the invention and a molding device of the production plant according to the invention in a schematic representation
  • FIG. 3 shows a detailed view of a humidification unit of the preconditioning device according to the invention in a schematic representation
  • FIG. 4a shows a detailed view of a first alternative humidification unit of a first alternative preconditioning device according to the invention in an open state in a schematic representation
  • FIG. 5 shows a detailed view of a second alternative humidification unit of a second alternative preconditioning device according to the invention in a schematic representation
  • FIG. 6 shows a detailed view of a third alternative humidification unit of a third alternative preconditioning device according to the invention in a schematic representation
  • 7 shows a detailed view of a fourth alternative moistening unit of a fourth alternative preconditioning device according to the invention in a schematic representation
  • FIG. 6 shows a detailed view of a third alternative humidification unit of a third alternative preconditioning device according to the invention in a schematic representation
  • 7 shows a detailed view of a fourth alternative moistening unit of a fourth alternative preconditioning device according to the invention in a schematic representation
  • FIG. 1 shows a production plant 46a which is designed, for example, as a packaging production plant, as a food packaging plant or as a food filling plant.
  • the production plant 46a comprises at least one preconditioning device 18a and at least one forming device 24a for forming packaging, in particular paper packaging, from a packaging material web 12a, in particular a packaging paper web, preconditioned by means of the preconditioning device 18a in a packaging forming process (cf. Figure 2).
  • the packaging forming process is preferably a process in which packaging, in particular paper packaging, is formed, in particular three-dimensionally formed, at least by means of the forming device 24a of the production plant 46a from the packaging material web 12a that has been preconditioned by means of the preconditioning device 18a.
  • the preconditioning device 18a is arranged in front of the shaping device 24a, viewed along a main transport direction 30a of the packaging material web 12a. It is also conceivable, however, for the preconditioning device 18a and/or the shaping device 24a to be designed as independent devices which can be operated independently of the production plant 46a.
  • the production plant 46a comprises at least one transport device (not shown in detail here), by means of which the packaging material web 12a can be moved along the main transport direction 30a during a packaging forming process.
  • the transport device can be designed as a roller transport device, as a belt transport device, as a chain transport device or as another transport device that appears useful to a person skilled in the art, which is intended to transport the packaging material web 12a along the main transport to move port direction 30a.
  • the packaging material web 12a in particular the packaging paper web, can be in the form of a rolled-up material web, in particular a rolled-up paper web, which is intended to be unwound in the form of a roll in order to be fed to the packaging forming process, or the packaging material web 12a, in particular the packaging paper web , can be designed as cut-to-size material web sections, in particular as cut-to-size paper web sections, which are intended to be fed individually to the packaging forming process.
  • the packaging material web 12a is based on, in particular natural, fiber material. Paper preferably forms a base material of the packaging material web 12a.
  • the packaging material web 12a can be single-ply or multi-ply.
  • the packaging material web 12a is preferably designed as a packaging paper web.
  • the packaging material web 12a it is also conceivable for the packaging material web 12a to be in the form of a packaging cardboard web, a packaging cardboard web, a packaging paper fleece web or other packaging material web 12a based on fiber material that appears sensible to a person skilled in the art.
  • FIG. 2 shows the preconditioning device 18a and the shaping device 24a of the production plant 46a (cf. FIG. 1) in a schematic representation.
  • the shaping device 24a preferably comprises a stamp 50a and a die 48a to form, in particular three-dimensionally, the packaging material web 12a into packaging.
  • the punch 50a and the die 48a are preferably mounted such that they can be moved relative to one another.
  • the shaping device 24a comprises, in particular in addition to a heating unit 22a of the preconditioning device 18a, a shaping heating unit 52a, by means of which heat can be introduced into the packaging material web 12a during the packaging shaping process.
  • the mold heating unit 52a has heating elements (not shown in detail here) which are arranged on the punch 50a and on the die 48a in a manner already known to a person skilled in the art.
  • the shaping device 24a preferably has a design and function that is already known to a person skilled in the art.
  • the preconditioning device 18a is preferably provided to ensure a homogeneous moistening and a homogeneous heating of the packaging material to realize web 12a before reshaping the packaging material web 12a by means of the shaping device 24a.
  • the preconditioning device 18a is advantageously provided for bringing the packaging material web 12a, which has at least paper as the base material, to an optimal moisture content and an optimal temperature for reshaping and advantageously to enable an interaction of material temperature and material moisture content.
  • the preconditioning device 18a is provided for carrying out a method 10a (see Figure 8) for preconditioning the packaging material web 12a based on, in particular natural, fiber material, in particular a packaging paper web, in the packaging molding process, in particular according to a process shown in Figure 8 schematically illustrated process flow of the method 10a.
  • the preconditioning device 18a comprises at least one moistening unit 16a for moistening the packaging material web 12a based on fiber material, in particular the packaging paper web, and at least the heating unit 22a for heating the packaging material web 12a based on fiber material, in particular the packaging paper web.
  • the moistening unit 16a preferably comprises at least one moistening element 26a for moistening the packaging material web 12a.
  • the moistening element 26a can be designed as a stamp, as a roller, as a fluid basin, in particular as a water basin, as a spray nozzle or the like.
  • the moistening element 26a can be used for contactless moistening, in particular when the moistening element 26a is designed as a spray nozzle or the like, or for contact-type moistening, especially when the moistening element 26a is configured as a stamp, roller or the like backing material web 12a may be provided.
  • the moistening element 26a preferably comprises at least one fluid reservoir area 54a, in particular a water storage area, for receiving a moistening fluid 36a for delivery to the packaging material web 12a.
  • the fluid reservoir area 54a can be designed, for example, as a spongy area, as a trough-shaped area, as a tank, as a nozzle antechamber, as a fluid line or as another fluid reservoir area 54a that a person skilled in the art considers appropriate.
  • the moistening element 26a is designed as a fluid basin which has a fluid reservoir region 54a designed as a trough-shaped region.
  • the moistening element 26a designed as a fluid basin preferably forms a water bath with a moistening fluid 36a arranged within the fluid basin, in particular within the fluid reservoir region 54a designed as a trough-shaped region.
  • the moistening fluid 36a can be in the form of water or water mixed with at least one additive, in particular sugar, starch, surfactants or the like.
  • Other configurations of the humidifying fluid 36a that appear sensible to a person skilled in the art are also conceivable.
  • Preconditioning device 18a preferably has at least one pump 56a (only indicated schematically in Figure 2), which is provided for actively changing, in particular increasing and/or reducing, a humidifying fluid level 34a of humidifying fluid 36a within humidifying element 26a, which is designed as a fluid basin and/or to generate an overpressure in a cavity 60a of the humidification unit 16a.
  • pump 56a (only indicated schematically in Figure 2), which is provided for actively changing, in particular increasing and/or reducing, a humidifying fluid level 34a of humidifying fluid 36a within humidifying element 26a, which is designed as a fluid basin and/or to generate an overpressure in a cavity 60a of the humidification unit 16a.
  • the pump 56a is preferably provided for pumping the moistening fluid 36a into the moistening element 26a configured as a fluid basin or pumping it out of the moistening element 26a configured as a fluid basin, depending on a process parameter, in particular a transport speed of the packaging material web 12a, in order to raise the moistening fluid level 34a of the To actively change humidification fluid 36a within the fluid basin designed as a humidification element 26a.
  • the moistening unit 16a comprises a further moistening element 28a, which encloses the cavity 60a, which is created by means of the packaging ma- material web 12a can be closed in at least one state, in particular during at least one standstill of the packaging material web 12a and a movement of the further moistening element 28a in the direction 32a of the packaging material web 12a.
  • the pump 56a can be used to generate an overpressure in the cavity 60a enclosed by the further humidifying element 28a, by means of which the web of packaging material 12a can be arched in the direction 32a of the humidifying element 26a designed as a fluid basin .
  • the packaging material web 12a can be brought into contact with the moistening fluid 36a.
  • a portion of the moistening fluid 36a displaced by the bulging of the packaging material web 12a in the direction 32a of the moistening element 26a designed as a fluid basin can flow into an intermediate reservoir 58a of the moistening element via overflow openings 62a, 64a (cf. FIGS. 2 and 3) of the moistening element 26a designed as a fluid basin 26a are caught.
  • the intermediate reservoir 58a can in particular be connected to the fluid reservoir area 54a via the pump 56a, in particular in order to advantageously implement a circuit of the humidifying fluid 36a. It is also conceivable that the further moistening element 28a, alternatively or additionally, in at least one state, in particular during at least one standstill of the packaging material web 12a and a movement of the further moistening element 28a in direction 32a of the packaging material web 12a, to close the Be dampening element 26a is provided.
  • pump 56a can be used to generate an overpressure in cavity 60a and, in particular at the same time, in humidifying fluid 36a to change the humidifying fluid level 34a of the humidifying fluid 36a, in order to bulge the packaging material web 12a for wetting and at the same time increase the humidifying fluid level 34a of the humidifying fluid 36a to change, in particular to increase.
  • the moistening element 26a designed as a fluid basin is moved towards the packaging material web 12a or the packaging material web 12a is moved towards the moistening element 26a designed as a fluid basin until the packaging - Covering material web 12a at least partially comes into contact with the moistening fluid 36a arranged in the fluid basin.
  • the humidifying unit 16a can comprise at least one ultrasonic unit 38a, which is provided to act on the humidifying unit 16a.
  • the humidifying unit 16a comprises the water bath and/or at least the further humidifying element 28a, which can be excited by means of the ultrasonic unit 38a.
  • the ultrasonic unit 38a can be used to act on the moistening fluid 36a, which can be brought into direct contact with the packaging material web 12a.
  • the ultrasonic unit 38a can act on the humidifying element 26a designed as a fluid basin or on the further humidifying element 28a, in particular in order to realize mechanical vibrations on the humidifying element 26a, on the further humidifying element 28a or in the humidifying fluid 36a.
  • An ultrasonic fluid bath in particular an ultrasonic water bath, can preferably be implemented for the packaging material web 12a by means of the action of the ultrasonic unit 38a on the moistening element 26a designed as a fluid basin.
  • mechanical vibrations are transmitted from the humidifying element 26a designed as a fluid basin to the humidifying fluid 36a arranged inside the humidifying element 26 designed as a fluid basin.
  • the ultrasonic unit 38a preferably has at least one vibration exciter (not shown in detail here), which is preferably arranged on the humidifying element 26a.
  • the vibration exciter can have any design that a person skilled in the art deems appropriate, such as a design as a piezo exciter, a magnetic exciter or the like.
  • the moistening unit 16a can have at least one receiving and/or wiping element 42a, 44a, which is provided to at least partially receive or at least partially receive a surface fluid that is arranged on the packaging material web 12a after the packaging material web 12a has been moistened by means of the water bath strip off Alternatively or additionally, it is also conceivable that, in particular before heating the packaging material web 12a by means of the heating unit 22a, the surface fluid which is arranged on the packaging material web 12a after wetting the packaging material web 12a, in particular still on the surface of the packaging Covering material web 12a is located and is not drawn into the packaging material web 12a by means of a force applied by the receiving and/or stripping element 42a, 44a of the moistening unit 16a into the fiber structure of the packaging material web 12a.
  • the receiving and/or stripping element 42a, 44a can, for example, take the form of a doctor blade, a roller, in particular a roller provided in addition to moistening, a flexible lamella, in particular a rubber lamella, a sponge or something else which a person skilled in the art considers sensible be formed element.
  • the humidifying unit 16a has at least two receiving and/or stripping elements 42a, 44a, which are designed as rollers.
  • the receiving and/or stripping elements 42a, 44a preferably form a pair of rollers between which the web of packaging material 12a can be moved.
  • the preconditioning device 18a preferably includes the heating unit 22a, which is intended to heat the packaging material web 12a, in particular before the packaging material web 12a is fed to the forming device 24a and in particular after the packaging material web 12a has been moistened by the moistening unit 16a.
  • the heating unit 22a is arranged along the main transport direction 30a after the moistening unit 16a, in particular before the shaping device 24a.
  • the heating unit 22a is preferably provided for contactless heating of the packaging material web 12a, in particular by means of thermal radiation.
  • the heating unit 22a may be an infrared heating unit or the like, for example.
  • the heating unit 22a is provided for heating the packaging material web 12a by means of thermal conduction, for example by means of contact of the packaging material web 12a with a heated heating element (not shown in detail here) of the heating unit 22a, for example with a heating roller of the heating unit 22a, over which the packaging material web 12a is moved, with a fixed heating element of the heating unit 22a, against which the packaging material web 12a rests at least temporarily, in particular on a contact element of a pressure chamber of the preconditioning device 18a, or the like.
  • the packaging material web 12a can be fed to the forming device 24a by means of the transport device in order to be formed into a packaging.
  • the The packaging produced can be fed directly by means of the transport device to a further processing station, such as a filling station or the like, or can be fed by means of the transport device to a storage device for storing the packaging.
  • FIG. 8 shows a schematic process sequence of the process 10a for a preconditioning of the packaging material web 12a based on, in particular natural, fiber material, in particular by means of the preconditioning device 18a.
  • the schematic process sequence of the method 10a can basically be used for the preconditioning device 18a described in FIGS. 1 to 3 and for the preconditioning device 18b to 18e described in FIGS. 4a to 7.
  • the method 10a for preconditioning the packaging material web 12a based on, in particular natural, fiber material, in particular a packaging paper web, in the packaging molding process has at least one method step 66a, in which the packaging material web 12a is fed to the preconditioning device 18a.
  • Method 10a comprises at least one method step 14a, in which the packaging material web 12a is moistened by means of the moistening unit 16a of the preconditioning device 18a and/or at least one method step 20a, in which the packaging material web 12a is heated by means of the heating unit 22a of the preconditioning device 18a.
  • the packaging material web 12a is moistened using the moistening unit 16a and/or heated using the heating unit 22a according to the use.
  • the packaging material web 12a is preferably moistened by means of the moistening unit 16a, in particular homogeneously, and/or heated by means of the heating unit 22a, in particular homogeneously, before it is fed to the forming device 24a, in which the packaging material web 12a is formed into a package.
  • the packaging material web 12a is moistened by means of the moistening unit 16a and/or heated by means of the heating unit 22a, in particular during a, in particular clocked, transport standstill of the packaging material web 12a.
  • the moistening elements 26a, 28a of the moistening unit 16a is moved along the direction transverse, in particular at least substantially perpendicular, to the main transport direction 30a in the direction 32a running in the packaging material web 12a (cf. FIGS. 2 and 3).
  • the moistening fluid level 34a of the moistening fluid 36a of the moistening unit 16a is changed, in particular as a function of a process parameter, in particular a transport speed of the packaging material web 12a.
  • the moistening fluid 36a of the moistening unit 16a is preferably heated to a temperature of between 20° C. and 90° C.
  • the ultrasonic unit 38a of the preconditioning device 18a is preferably used to act at least on the moistening unit 16a, in particular on the moistening fluid 36a, while the packaging material web 12a is being moistened.
  • Method 10a preferably has at least one method step 40a in which, in particular before the packaging material web 12a is heated by means of the heating unit 22a, a surface fluid, which is arranged on the packaging material web 12a after the packaging material web 12a has been moistened, is applied by means of at least one of the receiving and / or stripping elements te 42a, 44a of the moistening unit 16a is at least partially received or at least partially stripped off.
  • the packaging material web 12a is preferably heated by the heating unit 22a after wetting by means of the moistening unit 16a, in particular before the packaging material web 12a is fed to the shaping device 24a, in which the packaging material web 12a is formed into a package.
  • the method 10a preferably has at least one method step 68a, in which the packaging material web 12a, in particular after moistening and after heating, is fed to the shaping device 24a for shaping.
  • Other method steps of method 10a that appear sensible to a person skilled in the art are also conceivable.
  • a sequence and a number of the method steps of the method 10a described here and illustrated in FIG. 8 can be varied as desired in a manner that appears sensible to a person skilled in the art.
  • FIGS. 4a and 4b show an alternative humidification unit 16b of an alternative preconditioning device 18b.
  • the humidification unit 16b comprises at least one humidification element 26b.
  • the humidifying element 26b is designed as a fluid basin which has a fluid reservoir area 54b designed as a trough-shaped area.
  • the moistening element 26b designed as a fluid basin preferably forms a water bath with a moistening fluid 36b arranged inside the fluid basin, in particular inside the fluid reservoir area 54b formed as a trough-shaped area.
  • the humidifying unit 16b preferably comprises at least one further humidifying element 28b.
  • the further moistening element 28b is designed as a stamp.
  • the additional moistening element 28b has, in particular, an elastic area 70b.
  • the further moistening element 28b is preferably movably mounted, in particular along a direction 32b running at least substantially perpendicularly to a main transport direction 30b of a packaging material web 12b. In particular, by means of a movement of the further moistening element 28b in the direction 32b of the packaging material web 12b, the packaging material web 12b can be bulged out in the direction 32b of the moistening element 26b designed as a fluid basin.
  • the packaging material web 12b can be brought into contact with the moistening fluid 36b.
  • the moistening element 26b is movably mounted, in particular along the direction running at least substantially perpendicularly to the main transport direction 30b of the packaging material web 12b 32b. Further features of the preconditioning device 18b can preferably be found in the description of FIGS.
  • FIG. 5 shows an alternative humidification unit 16c of an alternative preconditioning device 18c.
  • the humidifying unit 16c comprises at least one humidifying element 26c.
  • the moistening element 26c is designed as a fluid basin which has a fluid reservoir area 54c designed as a trough-shaped area.
  • the moistening element 26c designed as a fluid basin preferably forms a water bath with a moistening fluid 36c arranged within the fluid basin, in particular within the fluid reservoir region 54c designed as a trough-shaped region.
  • the moistening element 26c designed as a fluid basin is movably mounted, in particular along a direction 32c running at least substantially perpendicularly to a main transport direction 30c of a packaging material web 12c.
  • the humidifying unit 16c comprises at least one further humidifying element 28c.
  • the further moistening element 28c is designed as a rotatably mounted roller.
  • the further moistening element 28c is preferably movably mounted, in particular along the direction 32c running at least substantially perpendicularly to the main transport direction 30c of the packaging material web 12c.
  • the further moistening element 28c is preferably arranged inside the moistening element 26c designed as a fluid basin.
  • the moistening element 26c and the further moistening element 28c are movably mounted relative to one another, in particular along the direction 32c running at least substantially perpendicularly to the main transport direction 30c of the packaging material web 12c.
  • the moistening unit 16c can have one or more drives, in particular hydraulic cylinders 74c, 76c, which are provided for moving the moistening element 26c and/or the further moistening element 28c.
  • the humidifying unit 16c preferably comprises at least one pressing element 72c, which is rotatably mounted.
  • the moistening element 26c and the further moistening element 28c are arranged on a side of the web of packaging material 12c facing away from the pressing element 72c.
  • the packaging material web 12c can be pressed against the pressing element 72c.
  • the packaging material web 12c can be arched out in the direction 32c of the moistening element 26c, which is designed as a fluid basin. Further features of the preconditioning device 18c can be found in the description of FIGS. 1 to 3.
  • FIG. 6 shows an alternative humidification unit 16d of an alternative preconditioning device 18d.
  • the moistening unit 16d includes a large number of moistening elements 26d, 28d.
  • the moistening elements 26d, 28d are designed as spray nozzles.
  • the moistening elements 26d, 28d are preferably arranged in a grid-like manner, in particular in order to enable partial moistening of a packaging material web 12d.
  • the moistening elements 26d, 28d can be stationary or movably mounted, in particular along a direction 32d that runs at least substantially perpendicular to a main transport direction 30d of the packaging material web 12d and/or along a direction that runs at least substantially parallel to a main plane of extension of the packaging material web 12d Direction. Further features of the preconditioning device 18d can be found in the description of FIGS. 1 to 3.
  • FIG. 7 shows an alternative humidification unit 16e of an alternative preconditioning device 18e.
  • the moistening unit 16e includes a multiplicity of moistening elements 26e, 28e.
  • the moistening elements 26e, 28e are in the form of stamps which are mounted so that they can move out of and into a fluid basin.
  • the moistening elements 26e, 28e have spongy fluid reservoir areas 54e, 78e.
  • the moistening elements 26e, 28e are preferably arranged in a grid-like manner, in particular in order to enable partial moistening of a packaging material web 12e.
  • the moistening elements 26e, 28e are at least along an at least essentially perpendicular to a main transport direction 30e of the packaging material. rialbahn 12e extending direction 32e from the fluid pool out and movably mounted. In addition, the moistening elements 26e, 28e can be movably mounted along a direction running at least substantially parallel to a main extension plane of the packaging material web 12e. Further features of the preconditioning device 18e can preferably be found in the description of FIGS.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un procédé de pré-conditionnement d'une bande de matériau d'emballage à base de matière fibreuse (12), en particulier une bande de matériau d'emballage à base de matière fibreuse naturelle, en particulier une bande de papier d'emballage, dans un procédé d'emballage par moulage. Dans au moins une étape de procédé (14), la bande de matériau d'emballage (12) est humidifiée au moyen d'une unité d'humidification (16) d'un dispositif de pré-conditionnement (18), et dans au moins une étape de procédé (20), la bande de matériau d'emballage (12) est chauffée au moyen d'une unité de chauffage (22) du dispositif de pré-conditionnement (18). Selon l'invention, la bande de matériau d'emballage (12) est chauffée au moyen de l'unité de chauffage (22) après avoir été humidifiée au moyen de l'unité d'humidification (16) et avant d'introduire la bande de matériau d'emballage (12) dans un dispositif de moulage (24) dans lequel la bande de matériau d'emballage (12) est moulée afin de former un emballage.
EP22733574.2A 2021-06-08 2022-06-08 Procédé de pré-conditionnement d'une bande de matériau d'emballage à base de matière fibreuse dans un processus d'emballage par moulage, et dispositif de pré-conditionnement pour la mise en oeuvre du procédé Pending EP4351871A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021114742.5A DE102021114742A1 (de) 2021-06-08 2021-06-08 Verfahren zu einer Vorkonditionierung von einer auf Fasermaterial basierenden Verpackungsmaterialbahn in einem Verpackungsformprozess sowie Vorkonditioniervorrichtung zu einem Durchführen des Verfahrens
PCT/EP2022/065594 WO2022258709A1 (fr) 2021-06-08 2022-06-08 Procédé de pré-conditionnement d'une bande de matériau d'emballage à base de matière fibreuse dans un processus d'emballage par moulage, et dispositif de pré-conditionnement pour la mise en œuvre du procédé

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EP4351871A1 true EP4351871A1 (fr) 2024-04-17

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EP (1) EP4351871A1 (fr)
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WO (1) WO2022258709A1 (fr)

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DE102023119288A1 (de) * 2023-07-21 2025-01-23 Hochschule der Medien, Körperschaft des öffentlichen Rechts Verfahren und Vorrichtung zur Herstellung von Produkten aus faserhaltigen Materialien
US20250196461A1 (en) * 2023-12-14 2025-06-19 Footprint International, LLC Systems and methods for web-fed dry forming of fiber-based products
DE102024107432A1 (de) * 2024-03-15 2025-09-18 Kiefel Gmbh Verfahren und Formwerkzeug zur Herstellung von Formteilen sowie zur Erzeugung eines Hinterschnitts und/oder einer Verjüngung in einem Formteil aus einem faserhaltigen Material
DE102024108936A1 (de) 2024-03-28 2025-10-02 Optima consumer GmbH Vorrichtung und Verfahren zur Herstellung eines Formkörpers
EP4729280A1 (fr) * 2024-10-21 2026-04-22 IP Verpackungen GmbH Procédé de fabrication de produits cellulosiques tridimensionnels

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DE102021114742A1 (de) 2022-12-08

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