WO2014108221A1 - Procédé de fabrication de sacs - Google Patents

Procédé de fabrication de sacs Download PDF

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Publication number
WO2014108221A1
WO2014108221A1 PCT/EP2013/067105 EP2013067105W WO2014108221A1 WO 2014108221 A1 WO2014108221 A1 WO 2014108221A1 EP 2013067105 W EP2013067105 W EP 2013067105W WO 2014108221 A1 WO2014108221 A1 WO 2014108221A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
folded
section
tubing
folding
Prior art date
Application number
PCT/EP2013/067105
Other languages
German (de)
English (en)
Inventor
Uwe Köhn
Rainer Henze
Rüdiger Große-Heitmeyer
Thomas Hawighorst
Hans-Ludwig Voss
Original Assignee
Windmöller & Hölscher 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 Windmöller & Hölscher Kg filed Critical Windmöller & Hölscher Kg
Priority to CN201380069850.0A priority Critical patent/CN105073583A/zh
Priority to BR112015016290A priority patent/BR112015016290A2/pt
Priority to EP13753837.7A priority patent/EP2943408A1/fr
Priority to US14/759,772 priority patent/US20150353218A1/en
Publication of WO2014108221A1 publication Critical patent/WO2014108221A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/04—Forming flat bags from webs
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/008—Stiffening or reinforcing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
    • B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • 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
    • B31B2155/00—Flexible containers made from webs
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular webs
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping

Definitions

  • the present invention relates to a method for producing sacks, a manufacturing device for the production of sacks and a suitably produced sack.
  • Methods for the production of sacks are generally known. They are z. B. provided to produce bags as packaging material for packaging goods. Thus, it is known to provide so-called form-fill-seal methods in order to be able to preferably carry out the production of the bag, the filling of the bag and the closing of the bag in a single machine.
  • Known methods are used to z. B. from plastic material in the form of a tube material to perform the individual process steps.
  • a sealing technique is often used. For this purpose, the material of the tubing is heated until it has reached a temperature above the melting temperature of this material.
  • the molten regions are brought into contact with each other, so that a fusion, the so-called sealing, of the materials is performed.
  • a fusion the so-called sealing
  • a disadvantage of known processes is that they are restricted to simple packaging materials. If, however, an increased requirement is imposed on the packaging material, in particular with regard to the mechanical loading capacity, known processes are frequently unable to process such materials. This is especially true for multi-layer materials containing a reinforcing material z. B. in the form of a fabric, have. In such embodiments of the material, a known application of a sealing technique would possibly result in fusion of the reinforcing material and thus reduction of the mechanical strength of the reinforcing material. However, dispensing with such a reinforcing material does not allow the partially required high strength values or high mechanical stabilities of such a bag.
  • the present invention relates to a method of manufacturing sacks comprising the following steps:
  • a tubing comprising a coating material and at least one reinforcing material for mechanically reinforcing the coating material
  • a folding section of the tubing is folded over at least 180 ° to a connecting portion of the tubing and
  • the folded hose section is connected to the connecting portion.
  • An inventive method is based on the fact that a combined material is used as a hose material.
  • This tubing has a reinforcing material, which z. B. may be formed in the form of a fabric structure.
  • the fabric structure can provide the necessary strength, while the coating material provides further functionalities, in particular with regard to the sealing of the hose material.
  • the sealing by the coating material relates in particular to a liquid-tightness or to a gas-tightness, in particular with regard to airtightness.
  • the bottom section in spite of the complex combined hose material of coating material and reinforcing material, the bottom section can be produced in a cost-effective and simple manner.
  • a fold section and a connecting section of the tube material are automatically defined by the formation of the fold.
  • the moving portion of the tubing will be defined as a folded portion, while the connecting portion of tubing usually remains in a position to which the folding section is turned.
  • the thickness of the hose material doubles at this location, so that a total of four layers lie on one another in the case of a superposed hose material in the region of the folded folding section and connecting section.
  • the tube material has both an inner side and an outer side
  • the outside of the folding section is placed on the outer side of the connecting section due to the outer folding over of the folding section onto the connecting section.
  • the connection between the folded folding section and connecting section can be carried out in any desired manner.
  • this bottom section is produced individually and separately, or whether the method is carried out together with further steps within a single machine. So it is of course possible that the formation of the bottom section is a partial step of an entire process in a form-fill-seal machine. So it is possible that in a first step, the tubing, z. B. using an extrusion machine. Also, the combination between the reinforcing material, for. B. in the form of the fabric and the subsequent coating may be part of such a machine or part of such a method according to the invention. Likewise, it is irrelevant whether a cutting of the tubing to form the exact length of the bag takes place before or after forming the bottom portion.
  • the bottom portion for turning over the fold portion of the tubing can be made both at the open end of the tubing portion and at a fresh, cut lower end of the bag of tubing.
  • the folded portion in the form of a Z-fold at the not yet cut lower end so at any point within the tubing can be done.
  • the coating material is on the outside of the tubing while the reinforcing material is on the inside of the tubing. It can be made available, for example, by coating a reinforcing material, in particular in the form of a mesh, with the outside of the coating material.
  • As a plastic in particular a PE plastic used.
  • As a reinforcing material may, for. B. also a plastic, in particular a stretched plastic used. Transversely and / or longitudinally stretched plastics are conceivable as reinforcement material which, in particular in the form of a fabric, provide the desired mechanical reinforcement of the coating material.
  • the melting temperatures of the coating material and the reinforcing material are clearly distinguishable from each other. If, for example, a melting of the coating material is carried out for the connection of the folding section to the connecting section, then it is of great advantage if the coating material has a significantly lower melting temperature than the reinforcing material. In particular, the melting temperature of the coating material differs from the melting temperature of the reinforcing material by more than 20 ° C.
  • a method according to the invention can be developed such that the folding section is turned over at least twice.
  • the folded portion is turned over at least twice such that the folded portion is at least partially turned over on itself.
  • the folding section receives in this way at least two folds, which may also be formed as kinks of the material of the folding section.
  • the tightness of the bottom portion produced by the fold is increased.
  • Each fold increases the tightness against the penetration of cargo. In particularly advantageous embodiments, in this way, a tightness against free-flowing or flowable piece goods available be put.
  • a bag made according to the invention can also be used in the case of high packaging requirements, as present, for example, in end consumer packaging.
  • This may be, for example, the packaging of animal products, such as pet food or pet supplies.
  • By increasing the tightness can be dispensed with in particular additional steps and / or additional sealing means. So can be avoided by the double fold section, for example, a placement of additional sealing tapes.
  • the deployment universality of a bag produced according to the invention is significantly increased.
  • the cost of production is reduced because no additional step for increasing the seal is necessary. Rather, only a modification of the existing folding step must be performed so that a constructive implementation in a machine is simple and inexpensive to carry out.
  • the folding section is at least partially turned over by at least 360 °.
  • the folding section is preferably at least partially also turned over on itself, as has already been explained in the previous paragraph.
  • the envelope by at least 360 ° can also be generated in a roll-up, so that form no folds during the turning. These are only produced when the rolled-up folding section is laid flat and thus the individual sections of the folding section come to rest on each other.
  • This embodiment of the method results in particular in increased speed, since rolling requires less effort with regard to the direction of movement than is the case with targeted folding movements.
  • a method according to the invention can be developed in such a way that the connection of the folded folding section with the connecting section is produced by at least one of the following method steps:
  • connection methods that can be used individually and / or in combination with each other. Thereby different possibilities of connection techniques are used. If z. B. gluing carried out, so regardless of the temperature use a desired connection of the folding section and the connecting portion can be generated. Preferably, regardless of the chosen method, the connection is performed such that a tight connection between the folding section and connecting section allows complete sealing of the bottom portion of the bag. If sewing is used as the connecting method, it is likewise possible to dispense with a temperature influence on the folding section and the connecting section. Thus, with the use of sewing or gluing process an even freer choice of materials for the reinforcing material as well as for the coating material can be done.
  • a sealing process can be used.
  • the desired temperature is introduced into the hose material in order to achieve a material-locking connection during the formation of the floor by melting and subsequent cooling after the cover for the coating material.
  • a hot air blower is used to carry out the temperature transfer to the coating material.
  • Other heat transfer options eg. B. in the form of heat radiation, are conceivable in the context of the present invention.
  • connection step for the connection method can be carried out at high speeds.
  • a connecting material is used which can be activated, in particular, by supplying energy.
  • This additional bonding material is in particular an adhesive.
  • This adhesive may be part of a separate coating or even part of the coating material itself.
  • the bonding material prefferably be an activatable bonding material, for example an activation by means of energy supply in the form of an adhesive
  • an activatable bonding material for example an activation by means of energy supply in the form of an adhesive
  • a cold seal adhesive which can be activated by pressure
  • a so-called hot melt ie an adhesive that can be activated by temperature
  • the connecting material itself can likewise have a carrier, so that it can be used in the form of an adhesive tape or a double-sided adhesive tape
  • the attachment preferably takes place on the folding section and / or on the connecting section, so that the connecting material, after the folding section has been folded over the Fa Lzabêt and the connecting portion of the tubing is located.
  • the folding section is folded around a folding axis, which is aligned transversely or substantially transversely to the longitudinal direction of the tube material, in particular to the conveying direction of the tube material.
  • the hose material has a longitudinal direction, which is when installed hose material of Rotation axis or the cylinder axis corresponds to the longitudinal axis of the tubing. It is possible that the hose material is conveyed in this longitudinal axis direction or in the longitudinal direction, so that the longitudinal direction also corresponds to the transport direction of the hose material.
  • the folding section is preferably transverse, in particular perpendicular, to such a longitudinal direction, so that this direction can also be referred to as transverse direction.
  • the extent of a bag in this transverse direction is less than in a longitudinal direction of the hose material, so that the expense for the production of the bottom portion to the smaller geometric extent, namely in the transverse direction, can be reduced.
  • the alignment of the folding axis transversely or substantially transversely to the longitudinal direction beyond a continuity of the manufacturing process of the tubing is taken into account.
  • this alignment makes it possible for a method according to the invention to be used in a continuous or semicontinuous process in an overall process, in particular a form-fill-seal process.
  • connection between the folded folding section and the connecting section takes place only in sections over the entire extent of the tubular material in the direction of the folding axis.
  • the folded portion in the form of a dashed line, a dotted line or a dotted line provides individual sections for the connection between folding section and connecting section, so that the effort and the amount of material for connecting the folded fold section are reduced with the connecting portion can.
  • the mechanical stability is improved by the turnover.
  • a method according to the invention can advantageously also be developed in such a way that the folded folded section is connected to the connecting section by at least one connecting element.
  • a separate connecting element is in particular of a connecting material, for. B. in the form of an adhesive to distinguish.
  • a connecting element z. B. in the form of a separate clip or an attached cover sheet. If a folding axis z. B. oriented transversely or substantially transversely to the longitudinal direction, it can be fixed on the connecting portion of this folding region of the tubing over such a cover sheet or an additional adhesive element as a connecting element in the folded position after the folding section.
  • substantially the entire open turned-over region of the hose material is thereby completed, so that the tightness of the interior of the bag is ensured independently of the folding about the folding axis.
  • the separate connection element can be fixed by different ways. Thus, it is possible to perform a bonding step, a sealing step or a sewing step as one or more possibilities of this fixing step.
  • closure portion for closing the bag after the filling of the bag, wherein the closure portion is formed in particular in the same or substantially the same manner as the bottom portion.
  • such a method is designed overall as a form-fill-seal method.
  • this can be cut to the desired length of the bag.
  • the bottom portion can be performed both at the end position of the tubing, so before cutting, as well as after cutting on the other side of the tubing.
  • the bottom portion is performed in a region of the tubing in the uncut state in the form of a Z-fold.
  • the filling of the bag is preferably carried out after the formation of the bottom portion, z. B. with a packaged product.
  • the closure portion for closing the bag after the filling of the bag is performed.
  • the Closure portion is formed based on reduced complexity and reduced effort in the same or substantially the same way as the bottom portion.
  • a method according to the invention can be developed in such a way that the bag is gripped by a transport device after forming the bottom section and before cutting the tube material. At this time, so even before cutting the tubing, the bag is still in a clearly defined position, since the bag is still connected to the tubing. By cutting slipping and thus changing the position of the bag can go along. Thus, by gripping the bag before cutting, it is ensured that the bag is gripped in the predefined position and orientation. A subsequent recognition of the possibly slipped position of the bag is therefore no longer necessary. Also, the gripping of the bag and the formation of the bottom portion may even be performed at least partially in parallel with time.
  • the transport device is used for further transport of the bag to a collection position or to another processing station.
  • This further processing station is in particular a filling device in which the bag is filled with a packaged product.
  • the sack is already defined in terms of its geometric extent. At the same time the bag is still uncut and therefore still part of the tubing.
  • the bag is transported by the transport device to a filling device where it is filled with the packaged product.
  • a filling device where it is filled with the packaged product.
  • the transport device can hold the bag with a gripping device until the filling process directly after grasping and thus before cutting the tubing. It is also possible that a transfer of the gripped bag takes place within the transport device. This means that after cutting the Tubing, so after separation, the bag transported away from the cutting device, then passed to a further gripping device and is fed to the last filling device with this further gripping device.
  • a production apparatus for the production of bags made of tubular material comprising a coating material and at least one reinforcing material for reinforcing the coating material.
  • the manufacturing device on a bottom device for the formation of a bottom portion of a bag.
  • a manufacturing device according to the invention is characterized in that the bottom device is designed for a folding of a folded portion of the hose material by at least 180 ° on a connecting portion of the hose portion and connecting the folded folded portion with the connecting portion.
  • a manufacturing device according to the invention is designed so that it is set up for carrying out a method according to the invention.
  • a manufacturing device according to the invention brings the same advantages as have been explained in detail with reference to a method according to the invention.
  • both a relative movement of the tubing to each other when the tube is stationary, as well as a movement of the tubing with standing envelope means of the manufacturing device of the bottom device can be performed. So it can be used standing and / or moving tools for generating the envelope of the folding section.
  • the ground device z. B. has a pliers device for the folding of the folding section.
  • a tong device may include pliers for gripping and moving the folding section.
  • These pliers of the pliers device are preferably movable relative to the hose.
  • This pliers device is particularly advantageous if the folding of the folding section is to be performed when the hose is stationary.
  • the pliers preferably perform a rotational movement of at least 180 °.
  • the ground device has a guide device, in particular with at least one guide plate, has for the turnover of the folding section.
  • a guide device is preferably used when the folding of the folding section is to be carried out with moving tubing.
  • one or more baffles may be provided, which have during the movement of the tubing along its longitudinal axis a corresponding turning of the folding section on the connecting portion result. The turnover is thus forced by the shape and geometric orientation of the baffles quasi.
  • the hose material and / or the bag are conveyed by transport elements, which work reversing or revolving. So it is possible that z. B. in the form of a conveyor belt or by chain-like tongs the circulating work of the transport elements is provided. Also, lever mechanisms are conceivable which reversing transporting the tubing and / or the bag, z. B. with appropriately arranged pliers allow.
  • the bottom device is subsequently arranged at least one transport device, which is designed for gripping and transporting the bag after the formation of the bottom portion.
  • a manufacturing device according to the invention can achieve the same advantages as have been explained in detail to the step of transporting to a method according to the invention.
  • gripping of the bag can be carried out in a predefined position and preferably the method can be accelerated by at least partially time-parallel work.
  • the transport device preferably has movable grippers, for example in the form of pliers or clamps. With these grippers, the bag is gripped, for example, on its opening side and then transported to another processing station.
  • This may in particular be a filling device for filling the bag.
  • the grippers are preferably movable for transport, for example along driven guides. This can be done within the manufacturing device to the downstream processing stations transport. It is also advantageous if, in a manufacturing device according to the invention, at least one cutting device is arranged for cutting the hose material after the formation of the bottom section. This process of cutting the tubing takes place in particular after grasping the bag by a transport device. Thus, slipping the position of the bag during cutting does not cause problems for gripping by means of the transport device.
  • the cutting device can for this purpose have cutting means, which are formed for example in the form of cutting blades.
  • the advantages of such a cutting device are in particular the same ones which have already been explained regarding the method according to the invention with regard to the method step of cutting the tube material.
  • the step of cutting the tube material serves in particular for separating the bags already produced by the formation of the bottom section.
  • the cutting takes place with respect to the conveying direction of the tubing behind the formed bottom portion.
  • the bottom portion remains completely in the sack separated by the cutting.
  • the remaining tubing is thus opened at this end and thus forms the upper opening of the following bag.
  • a further advantage can be achieved if, in a manufacturing device according to the invention, the cutting device and / or the transport device are arranged downstream of a filling device for filling the bag with packaged goods, wherein the manufacturing device is designed in particular as a form-fill-seal machine.
  • the manufacturing device is designed in particular as a form-fill-seal machine.
  • Another object of the present invention is a bag made of a tube material, comprising a coating material and at least one reinforcing material for the reinforcement of the coating material.
  • the bag has a bottom portion and a closure portion, which both the interior of the Complete bag.
  • An inventive sack is characterized in that the bottom portion and / or the closure portion have at least one fold portion of the tubing, which is folded over at least 180 ° to a connecting portion of the tubing and connected to this connection portion.
  • An inventive sack is preferably designed so that it is produced by a manufacturing device according to the invention and / or by a method according to the invention.
  • the bag has packaged goods in its interior.
  • packaging material may be general cargo and / or liquid material, wherein the reinforcing material in combination with the coating material preferably provides a tight closure of the interior of the bag.
  • FIG. 1 shows a first illustration of a hose material according to the invention
  • FIG. 3 shows in cross section a schematic representation of a hose material according to the invention
  • FIG. 4b shows a further step according to FIG. 4a
  • 4c shows a further step according to FIG. 4b
  • 4d shows a further step according to FIG. 4c
  • FIG. 5a shows a step of a further embodiment of a method according to the invention
  • FIG. 5b shows a further step of the method according to FIG. 5a
  • FIG. 5c shows a further step of the method according to FIG. 5b
  • FIG. 5d shows a further step of the method according to FIG. 5c
  • FIG. 6 shows an embodiment of a bag according to the invention.
  • Figures 1 and 2 show an embodiment of a hose material 100.
  • This is a hose material 100, which z. B. is produced by a blown extrusion machine. It extends along a longitudinal direction L of the tube material 100, wherein there is an open end, which z. B. in FIGS. 1 and 2, the viewer is dressed down to the left. From the top right would be seen the manufacturing device, so that a manufacturing direction and, accordingly, a transport direction along the longitudinal direction L down to the left would be present.
  • the tubing 100 is laid flat in the course of the process, as shown schematically in FIG.
  • FIG. 3 shows a possibility of filling a tube material 100 according to the invention.
  • a reinforcing material 120 is provided in the form of a fabric.
  • the fabric is intertwined and serves to provide sufficient mechanical stability of the tubing 100.
  • a continuously applied coating in the form of a coating material 110 is additionally provided. This allows an air-tight closing of an interior of a bag 10 from such a tube material 100.
  • FIG. 3 shows a schematic cross-section through the material, wherein, according to FIGS. 1 and 2, the top side as well as the underside of such a tube material 100 in FIG is formed corresponding manner.
  • the coating material 110 is preferably provided peripherally on the outside of the hose material 100.
  • FIGS. 4a to 4c show a first embodiment of a method according to the invention.
  • a production, for. B. by an extrusion process for the tubing 100.
  • This tubing 100 is z. B. are formed, as they represent the figures 1 to 3.
  • a portion of the tubing 100 may be cut by a cutter 84.
  • a folding device 102 now turns over a folding section 102 onto a connecting section 104 by means of a base device 82.
  • the bottom section 20 of the bag 10 is thus formed, as shown in FIG. 4c.
  • the bottom device 82 according to FIG. B. equipped with a temperature influencing possibility. So z. B.
  • a material-locking connection of the folding section can be provided with the connecting portion 104, as shown schematically in Figure 4c.
  • an additional connecting material 30 may be provided.
  • adhesive material 30 an adhesive, in particular an activatable by energy glue, be used. In this way, a corresponding connection between fold section 102 and connecting section 104 can be achieved by means of hotmelt or cold seal adhesive.
  • FIG. 4 d shows an alternative embodiment, wherein a thread is used here as additional joining material 30, which makes it possible to sew the folded folded section 102 for connection to the connecting section 104.
  • a thread is used here as additional joining material 30, which makes it possible to sew the folded folded section 102 for connection to the connecting section 104.
  • a folding of the folding section 102 by more than 180 °, namely a total of 360 ° ,
  • a rolling up for the bottom portion 20 can take place and accordingly a rolling bottom of the bag 10 are generated.
  • FIGS. 5a to 5d show a further possibility of carrying out a method according to the invention.
  • a hose section 100 has a conveying direction F of the hose material 100 in the direction of its longitudinal direction L. Again, from the left z.
  • FIG. 5b shows a next step, wherein the folding over of the folding section 102 onto the connecting section 104 takes place before cutting by a cutting device 84.
  • Such folding may also be referred to as Z-folding.
  • the connection between the folding section 102 and the connecting section 104 can be completed.
  • This connection can z. B. by hot air, by sewing, by gluing or by other sealing techniques.
  • FIG. 5 d shows a possibility of the connection which uses an additional connecting element 40.
  • FIGS. 4a to 5d thus also schematically show a production device 80 according to the present invention.
  • FIG. 6 shows an embodiment of a bag 10 according to the invention.
  • the bottom portion 20 is preferably formed identically, as the closure portion 50.
  • the folding axis FA preferably extends transversely to a longitudinal direction L of the tube material 100, as can be seen in FIGS. 1 and 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Abstract

L'invention concerne un procédé de fabrication de sacs (10), comprenant les étapes suivantes consistant à : fournir un matériau tubulaire (100), comprenant un matériau de revêtement (110) et au moins un matériau de renforcement (120) permettant le renforcement mécanique du matériau de revêtement (110), et former une partie fond (20) d'un sac (10). Le procédé est caractérisé en ce que, pour la formation de la partie fond (20), une partie de pliage (102) du matériau tubulaire (100) est rabattue d'au moins 180° sur une partie de liaison (104) du matériau tubulaire (100), et la partie de pliage (102) rabattue est reliée à la partie de liaison (104).
PCT/EP2013/067105 2013-01-08 2013-08-16 Procédé de fabrication de sacs WO2014108221A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201380069850.0A CN105073583A (zh) 2013-01-08 2013-08-16 用于制造袋子的方法
BR112015016290A BR112015016290A2 (pt) 2013-01-08 2013-08-16 método de produção de sacolas, dispositivo de produção e sacola
EP13753837.7A EP2943408A1 (fr) 2013-01-08 2013-08-16 Procédé de fabrication de sacs
US14/759,772 US20150353218A1 (en) 2013-01-08 2013-08-16 Method for producing bags

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310100131 DE102013100131A1 (de) 2013-01-08 2013-01-08 Verfahren zum Herstellen von Säcken
DE102013100131.9 2013-01-08

Publications (1)

Publication Number Publication Date
WO2014108221A1 true WO2014108221A1 (fr) 2014-07-17

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ID=49083651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/067105 WO2014108221A1 (fr) 2013-01-08 2013-08-16 Procédé de fabrication de sacs

Country Status (6)

Country Link
US (1) US20150353218A1 (fr)
EP (1) EP2943408A1 (fr)
CN (1) CN105073583A (fr)
BR (1) BR112015016290A2 (fr)
DE (1) DE102013100131A1 (fr)
WO (1) WO2014108221A1 (fr)

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MX2023007138A (es) 2020-12-22 2023-06-27 Graphic Packaging Int Llc Montaje de acoplamiento de solapa extrema para montar cajas de carton y sistemas y metodos relacionados.

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Also Published As

Publication number Publication date
CN105073583A (zh) 2015-11-18
BR112015016290A2 (pt) 2017-07-11
EP2943408A1 (fr) 2015-11-18
US20150353218A1 (en) 2015-12-10
DE102013100131A1 (de) 2014-07-10

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