WO2021151621A1 - Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires - Google Patents

Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires Download PDF

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Publication number
WO2021151621A1
WO2021151621A1 PCT/EP2021/025017 EP2021025017W WO2021151621A1 WO 2021151621 A1 WO2021151621 A1 WO 2021151621A1 EP 2021025017 W EP2021025017 W EP 2021025017W WO 2021151621 A1 WO2021151621 A1 WO 2021151621A1
Authority
WO
WIPO (PCT)
Prior art keywords
mover
corner
folding tool
movers
tool
Prior art date
Application number
PCT/EP2021/025017
Other languages
German (de)
English (en)
Other versions
WO2021151621A8 (fr
Inventor
Lasse Nagel
Carsten Brommer
Andreas Lamkemeyer
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 EP21704708.3A priority Critical patent/EP4096910A1/fr
Priority to CN202180025610.5A priority patent/CN115335216A/zh
Publication of WO2021151621A1 publication Critical patent/WO2021151621A1/fr
Publication of WO2021151621A8 publication Critical patent/WO2021151621A8/fr

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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/003—Opening or distending bags
    • 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
    • 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
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/20—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being perpendicular to the direction in which the sheets or blanks are fed
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/36—Folding sheets, blanks or webs by continuously feeding them to stationary members, e.g. plates, ploughs or cores

Definitions

  • the invention relates to a device for producing corner envelopes on tubular sack bodies with a folding tool which can be inserted into a bottom opening of a sack body for producing a corner envelope.
  • EP 2441 574 B1 Such a device is known, for example, from EP 2441 574 B1.
  • the bottom opening of a bag body is formed using a rotating expanding tool.
  • EP 2441 574 B1 also describes that a second expanding tool can be provided independently of the first expanding tool.
  • One spreading tool is then engaged per sack, while the second forms the bottom of the subsequent sack. Both tools are driven by a servo motor and are exposed to strong acceleration forces.
  • the object of the invention is therefore to increase the throughput and the reliability of the device.
  • the basic concept of the invention is based on providing a linear transport system for guiding and controlling the at least one folding tool.
  • a linear transport system is known, for example, from DE 102012204919 A1.
  • the linear transport system consists of a basic profile on which several movers according to the principle of one
  • Linear motor can be guided and controlled.
  • the folding tool By attaching the folding tool to one or more movers, the folding tool can be controlled precisely and highly dynamically.
  • the number of movers and the folding tools attached to them can in principle be expanded as required.
  • a second mover with a second folding tool is provided for producing an opposing corner fold of the floor opening.
  • a third mover with a third folding tool and a fourth mover with a fourth folding tool are provided for producing two opposite corner folds of a subsequent bag body.
  • a fifth mover is provided, to which suction nozzles are attached for opening a floor opening.
  • a sixth mover is provided, to which a pressing tool for pressing a produced corner cover is attached.
  • FIG. 1 shows a linear transport system with 4 movers and with folding tools attached to the movers
  • FIG. 2 shows a detailed view of the folding tool
  • 3 shows an overall view of the device according to the invention.
  • the linear transport system 101 shows a linear transport system 101 with 4 movers and with folding tools attached to the movers.
  • the linear transport system 101 consists of a basic profile 102 with a
  • Guide rail 105 on which any number of movers 103 can be moved.
  • the drive takes place via the coil pack 104 integrated in the basic profile 102, which is controlled by power electronics that are also integrated in the basic profile 102.
  • Each mover 103 has an encoder flag 106 with which the position of the mover can be recognized by the control electronics.
  • the basic profile 102 can be assembled from various components.
  • the desired geometries, lengths and radii of the basic profile 102 are thus formed by the number and selection of the components. There is no need for complex cabling, as the power electronics and the position measuring system are integrated in the basic profile.
  • the movers can accelerate, brake, position and synchronize. They can take absolute and relative positions to each other. They can group and accumulate or generate clamping forces in motion.
  • 2 shows a detailed view of the folding tool 107.
  • the folding tool consists of two folding arms 201 and 202, which are each fastened to one side of a mover 103. At the ends of the holding arms 201 and 202 there are respectively outwardly pointing expansion plates 203 and 204 with which a corner fold can be produced in the bottom opening of a sack body.
  • the holding arms 201 and 202 with the expansion plates 203 and 204 are not attached to one mover, but rather to two different movers.
  • the holding arms 201 and 202 can be designed so that the expansion plates 203 and 204 are in the same opposite position 2 are located as soon as the two movers are in close proximity to one another.
  • FIG. 3 shows an overall view of the device according to the invention.
  • the linear transport system already described according to FIG. 1 is installed in a stationary manner in the device, while a conveyor belt 301 moves below it in the transport direction 302.
  • Tubular bag bodies 303 are moved on the conveyor belt 301.
  • Holding means (not shown further) ensure that the sack bodies 303 do not slip with respect to the conveyor belt 301.
  • the holding means can be implemented, for example, by appropriate magnets.
  • holes are provided in the conveyor belt 301 and a vacuum is generated under the conveyor belt 301, which sucks the sack bodies 303 onto the conveyor belt 301.
  • the bag bodies 303 can consist, for example, of paper, of plastic film or of woven plastic strips or plastic threads.
  • the so-called pre-break strip 304 is provided in order to generate a defined fold line.
  • the pre-break bar 304 can be fixed in a stationary manner with respect to the conveyor belt 301 or it can move along with the conveyor belt 301.
  • Which option is built into the device depends on various production parameters, such as, for example, on the material of the bag body 303 and the transport speed of the conveyor belt 301.
  • the vertically upwardly folded tube end passes through two opposing suction nozzles 305 and 306, which open the two tube layers of the bag body 303 so that the bottom opening 307 is formed in the manner shown.
  • the suction nozzles 305 and 306 can also be designed as suction strips, depending on the application.
  • the suction nozzles 305 and 306 can also be fixed in a stationary manner with respect to the conveyor belt 301 or they can be connected to the Move conveyor belt 301 with it. Which option is built into the device also depends on various production parameters.
  • the hose body 303 After the bottom opening 307 has been formed, the hose body 303 reaches the area of the linear transport system 101.
  • the mover 308 is moved to the position shown at the appropriate time so that the folding tool 309 engages the bottom opening 307 and creates the first corner envelope.
  • the mover 310 moves into the engagement position in order to produce the opposite, second corner envelope of the floor opening 307.
  • the movers 311 and 312 then carry out the same actions with respect to the subsequent hose body that were previously described for the movers 308 and 310 with respect to the hose body 303. During this time, the movers 308 and 310 move back to the waiting position in order to be able to carry out the action for the hose body that follows again at the appropriate time.
  • the movers are only used to move the folding tools.
  • other actions can also be carried out with the movers.
  • suction nozzles are attached to the movers, which open the two hose layers of the bag body before the corner envelope is produced, so that the bottom opening is formed.
  • a small suction turbine could be driven for this purpose, which generates the negative pressure for the suction nozzle.
  • a pressing tool it is also possible for a pressing tool to be attached to the movers which, after the corner envelopes have been produced, is pressed onto the corner envelopes produced in order to produce a defined folding edge in the corner envelopes.

Landscapes

  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

L'invention se rapporte à un dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires au moyen d'un outil de pliage, qui peut être introduit dans une ouverture de fond d'un corps de sac pour produire un repli de coin. Pour augmenter le débit et la fiabilité du dispositif, un système de transport linéaire est pourvu d'au moins un élément de déplacement, l'outil de pliage étant fixé au ou aux éléments de déplacement.
PCT/EP2021/025017 2020-01-29 2021-01-18 Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires WO2021151621A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21704708.3A EP4096910A1 (fr) 2020-01-29 2021-01-18 Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires
CN202180025610.5A CN115335216A (zh) 2020-01-29 2021-01-18 一种用于在管状袋体处产生拐角折叠部的装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020102118.6 2020-01-29
DE102020102118 2020-01-29
EP102020102118.6 2020-01-29

Publications (2)

Publication Number Publication Date
WO2021151621A1 true WO2021151621A1 (fr) 2021-08-05
WO2021151621A8 WO2021151621A8 (fr) 2021-10-14

Family

ID=74591949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/025017 WO2021151621A1 (fr) 2020-01-29 2021-01-18 Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires

Country Status (3)

Country Link
EP (1) EP4096910A1 (fr)
CN (1) CN115335216A (fr)
WO (1) WO2021151621A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712275A (en) * 1952-07-11 1955-07-05 St Regis Paper Co Bag bottom shaping device
EP0999134A2 (fr) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Machine d'emballage modulaire avec un dispositif de contrôle de la tension d'une bande
DE102008063949A1 (de) * 2008-08-05 2010-02-11 Windmöller & Hölscher Kg Mitlaufender Schieber
EP2441574B1 (fr) 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Procédé et dispositif de formation de fonds ouverts sur des zones d'extrémité de corps de sachets tubulaires
DE102012204919A1 (de) 2012-03-27 2013-10-02 Beckhoff Automation Gmbh Statorvorrichtung für einen linearmotor und lineares transportsystem
EP2711165A1 (fr) * 2012-09-24 2014-03-26 Starlinger & Co. Gesellschaft m.b.H. Dispositif d'acheminement pour corps de sachet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712275A (en) * 1952-07-11 1955-07-05 St Regis Paper Co Bag bottom shaping device
EP0999134A2 (fr) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Machine d'emballage modulaire avec un dispositif de contrôle de la tension d'une bande
DE102008063949A1 (de) * 2008-08-05 2010-02-11 Windmöller & Hölscher Kg Mitlaufender Schieber
EP2441574B1 (fr) 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Procédé et dispositif de formation de fonds ouverts sur des zones d'extrémité de corps de sachets tubulaires
DE102012204919A1 (de) 2012-03-27 2013-10-02 Beckhoff Automation Gmbh Statorvorrichtung für einen linearmotor und lineares transportsystem
EP2711165A1 (fr) * 2012-09-24 2014-03-26 Starlinger & Co. Gesellschaft m.b.H. Dispositif d'acheminement pour corps de sachet

Also Published As

Publication number Publication date
EP4096910A1 (fr) 2022-12-07
CN115335216A (zh) 2022-11-11
WO2021151621A8 (fr) 2021-10-14

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