EP3055126A1 - Procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dispositif de formation de gaines et système de fabrication de sachets - Google Patents

Procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dispositif de formation de gaines et système de fabrication de sachets

Info

Publication number
EP3055126A1
EP3055126A1 EP14783816.3A EP14783816A EP3055126A1 EP 3055126 A1 EP3055126 A1 EP 3055126A1 EP 14783816 A EP14783816 A EP 14783816A EP 3055126 A1 EP3055126 A1 EP 3055126A1
Authority
EP
European Patent Office
Prior art keywords
flat web
tube
web material
edge
tube forming
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.)
Granted
Application number
EP14783816.3A
Other languages
German (de)
English (en)
Other versions
EP3055126B1 (fr
Inventor
Uwe WOLFRAM
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP3055126A1 publication Critical patent/EP3055126A1/fr
Application granted granted Critical
Publication of EP3055126B1 publication Critical patent/EP3055126B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B31B70/26—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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • 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
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in 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
    • 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
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • 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
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41487—Winding slitting trimming edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a method for forming a tube from a flat sheet material according to the preamble of patent claim 1 and a hose forming device according to the preamble of claim 9. Furthermore, the invention relates to a system for producing bags according to the preamble of claim 17.
  • a semi-finished in the manufacture of Bags and sacks are pieces of hose that are often separated from a hose, for example cut or torn off.
  • Such hoses are made by a method and apparatus for making a hose from a flat web material by feeding this flat web with feeders such as idler rolls.
  • the flat web material in this case has a surface which is bounded by the side edges or edges.
  • edges which are also referred to as side edges, hammered inwards, in such a way that the edge areas overlap each other.
  • Parts of the overlapping edge areas are connected to each other. This can be done for example by introducing an adhesive substance (hot melt adhesive, cold glue, plastic melt) between the individual of the overlapping edge regions.
  • a connection can also be made by contact welding, hot air sealing or even by sewing.
  • the actual hose is shaped with it.
  • the tube forming tools include, for example, baffles and rods for turning the edges and other leadership facilities. Folding, holding and pressing tools can also count.
  • tube forming tools may be gusseted, which also allows gussets to be inserted into the tube during actual tube formation to later produce gusseted bags or sacks. All these tools are usually fixed, but can be moved to set up the hose production. hand-operated
  • the flat web material used is not sufficiently homogeneous over its entire width and / or its entire length. Since quite high transverse forces act on the flat web material in the hose-forming device, uncontrolled and thus undesirable displacements of the material may occur transversely to its transport direction, which leads to different envelope widths. This then results in a deviation from the nominal geometry of the hose, which manifests itself, for example, in the fact that the seam of the hose does not lie at the desired position but is displaced transversely to the extension direction of the hose.
  • the object of the present invention is therefore to propose a method and a device with which the disadvantages described above can be avoided. According to the invention, this object is solved by the features of claim 1.
  • the object is achieved in that the desired position of an edge is determined, which should result after the folding of the edges.
  • This target position can be entered into a control device, for example, by entering a numerical value indicating the absolute position or the relative position with respect to a stationary component.
  • the clamping of the flat web material in the tube forming device with a correct positioning can be understood as setting the target value. This clamping is usually done at a standstill, ie before the start of production.
  • the actual position of the edge is determined by means of a measuring device. If the desired position and the actual position deviate from one another, then the hose-forming tool or the hose-forming tools is displaced transversely to the transport direction of the flat web material. The flat web material in front of the actual hose-forming device is thus not displaced, but rather the instationary states occurring in the actual hose-forming process are compensated by the fact that the hose-forming tool tracks the actual position of the edge. If the measuring device is also simultaneously carried along, the actual position becomes the new desired position after correction has taken place. This process can be repeated several times during an order processing. In this case it is not necessary to enter the absolute target position.
  • a round fabric can first be laid flat and separated by trimming or cutting in the edges to flat web material. Also, a one-sided trimming or slicing and a striking of the two layers are conceivable in principle to obtain a flat web material.
  • This flat sheet material is often provided with a coating. This coating is advantageously formed from a plastic which has a lower melting temperature than the fabric material.
  • the coating of the fabric material also has the advantages that it is easy and high quality printable and that it serves as a moisture barrier.
  • Tissue material per se has the advantage that it has a comparable strength compared to a normal plastic film with less material used.
  • it is extremely complicated to produce the fabric and in particular the coating homogeneously, so that qualitatively satisfactory hoses could be produced in a tube forming device according to the prior art.
  • the fabric often has a "twist" in the circumferential direction (longitudinal strips are tilted in the direction of transport) and, above all, the coating can not be produced over the width of the flat web material with a constant thickness occurring and already described above, therefore, have a particularly negative impact on coated fabric material Tubing device according to the invention and the method according to the invention, which is advantageously carried out with a flat web material made of coated fabric, fabric tubes can be produced which avoid the above-mentioned disadvantages and which are ideal for the production of bags or sacks.
  • the flat web material is provided with perforation cuts before it is formed into a tube.
  • Such perforation cuts can be produced with a knife roller which acts against a counter-roller guiding the flat web material.
  • the invention offers particular advantages when such perforation cuts are staggered, d. H. Seen in the longitudinal direction are arranged at different positions. Such staggering perforations are often introduced into the flat web material in order to produce durable and particularly dense bottoms of sacks or bags. A manufacturing method for these bags is shown in EP 1 228 857. The description of the relay sections included therein is hereby content of the invention disclosed with this patent application.
  • the stubble cut must correspond to the rebate edges of the tube, d. H. the jumps between each section of the cut should be on the edges of the tube to make a proper sack.
  • the staggering perforation is displaced beyond the later edges, ie, the staggering perforation lies transversely offset from the edges of the tube the present invention in connection with perforation cuts, especially with staff cuts.
  • the at least one hose forming tool is arranged on a frame and that this frame is moved. A movement takes place when a deviation from target and actual position is detected.
  • that carries Frame all hose forming tools and also means for connecting the overlapping in the hose forming process edge areas. To move the frame then only a single displacement drive is required, for example, an electric motor which acts on a spindle-spindle nut combination.
  • the number and mounting positions of the hose forming tools can be varied in this approach in large bandwidths.
  • An advantageous embodiment of the invention also provides for the use of an ultrasonic sensor or an electro-optical sensor as a measuring device.
  • these sensors comprise a transmitter which, for example, emits ultrasonic waves or electro-optical radiation.
  • a flat receiver is arranged, which provides a value depending on the intensity of the received waves or radiation, for example, a current value or a voltage value. If now a part of the receiver surface is covered, the value decreases in proportion to the size of the covered part of the receiver surface.
  • Transmitter and receiver are arranged relative to each other immovable. The at least one edge of the flat web material is guided between the transmitter and the receiver.
  • the senor is positioned before the actual production start of the tube, ie preferably at standstill, the transmitter-receiver unit so that half of the receiver surface is covered as possible, so that the change of the value is detectable in both directions , That is, an increase in the value is observed when the edge portion of the flat sheet material releases a larger sensor area and a decrease in value when the edge of the flat sheet material covers a larger area.
  • the measured value is thus in relation to the deviation.
  • the desired position of the flat web material is now either determined by covering, for example, a predetermined proportion of the receiver surface or that after the device of the flat web material of the covered portion of the receiver surface is determined and communicated to the controller.
  • the transmitter-receiver unit that is to say the sensor
  • the transmitter-receiver unit can also be displaced so that subsequently the previously set portion of the receiver surface is covered again.
  • This can be achieved in a particularly advantageous manner by an arrangement of the sensor on the frame when the frame is moved for the purpose of displacement of the hose forming tool.
  • the actual position of the edge is preferably arranged at a position within the tube forming device - viewed in the transport direction of the flat web material - in which the edge regions of the flat web material have already been overlapped and preferably not yet connected to one another.
  • the shape of the tube is almost complete at this position, but the permanent connection of the edge regions is still outstanding.
  • the effects of the transverse forces within the tube forming process can be determined with utmost certainty.
  • the adjustment is easy at this point, especially since only a few adjustment means are needed.
  • a tube forming means for forming a tube from a flat web material, which at least one feed means for supplying a flat web, at least one hose forming tool for driving the side edges of the flat web, wherein then overlap the edges and at least one means for connecting parts of the overlapping edges according to the invention further developed in that a device is provided, with which the desired position of at least one edge can be fixed after the edges are turned in, that a measuring device for determining the actual position of at least one edge and that an adjusting device for moving the hose forming tools are provided at least transversely to the transport direction of the flat web material in a deviation of the actual position of the desired position.
  • the movement takes place relative to the flat web material in the feed or relative to the at least one feed device which guides the flat web material.
  • the subject matter of the invention is furthermore a system for the production of sacks or bags according to claim 17.
  • This object solves the problem that sacks or bags may be of reduced quality if the tube transversally shifts within the tube forming device and thus the bag or sack bottoms can be formed demanding.
  • a soil preparation device which may be part of a system according to the invention, is described in DE 10 2009 056 078 A1. This disclosure is hereby incorporated by reference into the present disclosure.
  • FIG. 1 side view of an inventive
  • FIG. 2 top view of a hose forming device according to the invention
  • FIG. 3 view of the section A-A in Fig. 1st 1 shows a side view of a hose forming device 1 according to the invention.
  • the hose machine comprising the hose forming device initially comprises an unwinding device 2, in which a winding 3 of a flat web material 4 rotates in the direction of the arrow 5.
  • the flat web material 4 is guided over a deflecting roller 6, which represents a simple example of a feeding device of the flat web material 4 to the hose forming device 1.
  • the guide roller 6 is shown in this embodiment as a counter roller for the knife roller 7, with which perforations can be introduced into the flat web material.
  • the knife roller 7 carries one or more perforating knives 8.
  • the functions of the deflecting roller 6, that is to say “deflecting” and “providing counter-pressure in the perforating process”, are here combined only for the sake of clarity, in practice these are rather separated.
  • the actual tube forming process begins already in the area between the guide roller 6 and the tube forming device 1 by the edges 10 and 1 1 are guided upwards, ie in the direction z.
  • the pressure roller 12 which holds the central part of the flat web material 4 at a fixed position with respect to the z-axis, and guide plates 13, which laterally apply guide forces for the flat web material from the outside.
  • Pressure roller 12 and guide plates 13 are examples of a variety of possible tube forming tools that can be used to give the desired appearance to the later tube. Further examples of hose forming tools have already been given in the general description of the invention. All these Hose forming tools are arranged on the frame 15, wherein the hose forming tools for the purpose of adjustment or for the purpose of production preparation by means of suitable adjusting and fastening devices can be moved relative to the frame and then attached.
  • the example of the guide plates 13 is easy to see that the flat web material lateral forces are imposed, which may have a displacement of the tube in the z and / or y-direction result.
  • FIG. 3 shows further tube forming tools which may be referred to as gussetters 14.
  • the gussets 18 which can be produced in this way are preferably used for the production of specific bags or sacks, since after filling thereof, almost a cuboid is formed, which offers advantages in storage and transport.
  • Straight tubes with side edges are particularly advantageous to produce a device according to the invention with a method according to the invention, since it arrives at the correct position of the edges after the tube formation especially in gusseted tubes, especially if they include staggered perforations.
  • the edge regions of the flat web material overlap one another, so that even the cross-sectional contour represents a hose which is still open in the longitudinal direction.
  • the overlapping region 16 of the edge regions or the edges of the flat web material 4 can be seen in FIG.
  • the outer folded edges of the tube may also be referred to as lateral or outer edges 17.
  • the sensor unit 20 follows, which is clearly visible in FIG. This comprises a mounted on the frame 15, U-shaped profile 21, which carries the transmitter 22 and the receiver 23 of the sensor.
  • the hose forming tools are arranged and arranged so that the edge 1 1 between transmitter 22 and Receiver 23 passes through.
  • a change in position of the edge 1 1 in the y direction can thus be detected by the sensor, wherein the sensor is set up so that it can determine the magnitude of the position change.
  • the receiver sends corresponding values or signals via a data line 24 to the control unit 25. This converts this information into a control information, which is sent via the control line 26 to the actuator 27.
  • the actuator is fixed - for example, by screwing with the hall floor - arranged and causes a shift of the frame in the y-direction via sliding elements.
  • the actuator may be, for example, a rotating electric motor, which acts on the frame 15 via gear elements 28, such as a spindle-spindle nut arrangement or a toothed rack and pinion arrangement.
  • a linear drive for example a linear electric motor, is conceivable and would also do without gear elements.
  • the frame 15 is supported on slides 30, which in turn rest on guide rails 31 and are slidable along this.
  • the contact between carriage and guide rails can be formed from sliding or rolling elements.
  • the now finished tube 9 is usually converted in the winding device 33 to the hose reel 34 (see Figure 1), which then, for example, a Bag machine can be supplied. However, it is also conceivable that the tube machine directly connects a further processing machine, without a hose reel would have to be formed.

Landscapes

  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

La présente invention concerne un procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dans lequel une bande plate est acheminée par des moyens d'acheminement. Les bords de la bande continue de matériau plate sont pliés par au moins un outil de formation de gaines de façon que les zones de bords se chevauchent et des parties des zones de bords qui se chevauchent sont liées ensemble. On détermine la position souhaitée d'au moins un bord après le pliage des bords, on détermine la position réelle d'au moins un bord à l'aide d'un moyen de mesure et, en cas d'écart entre la position réelle et la position souhaitée, on déplace l'outil de formation de tuyau au moins transversalement à la direction de transport de la bande continue de matériau plat à l'aide d'un moyen de réglage.
EP14783816.3A 2013-10-11 2014-10-10 Procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dispositif de formation de gaines et système de fabrication de sachets Active EP3055126B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310220512 DE102013220512A1 (de) 2013-10-11 2013-10-11 Verfahren zum Bilden eines Schlauches aus einem Flachbahnmaterial sowie eine Schlauchbildungseinrichtung und ein System zum Herstellen von Beuteln
PCT/EP2014/071726 WO2015052309A1 (fr) 2013-10-11 2014-10-10 Procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dispositif de formation de gaines et système de fabrication de sachets

Publications (2)

Publication Number Publication Date
EP3055126A1 true EP3055126A1 (fr) 2016-08-17
EP3055126B1 EP3055126B1 (fr) 2017-09-27

Family

ID=51691029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14783816.3A Active EP3055126B1 (fr) 2013-10-11 2014-10-10 Procédé de formation d'une gaine à partir d'une bande continue de matériau plat, dispositif de formation de gaines et système de fabrication de sachets

Country Status (5)

Country Link
US (1) US10526158B2 (fr)
EP (1) EP3055126B1 (fr)
CN (1) CN105722672B (fr)
DE (1) DE102013220512A1 (fr)
WO (1) WO2015052309A1 (fr)

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CN113500823B (zh) * 2021-06-30 2023-03-24 瑞安市新元包装机械设备有限公司 一种应用于封切机的程序流程方法

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Publication number Priority date Publication date Assignee Title
IT202100029807A1 (it) * 2021-11-25 2023-05-25 Ipi Srl Apparato per la realizzazione di contenitori riempiti di un liquido e sigillati.
WO2023094938A1 (fr) * 2021-11-25 2023-06-01 G.D S.P.A Appareil de fabrication de récipients remplis de liquide et scellés

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DE102013220512A1 (de) 2015-04-16
WO2015052309A1 (fr) 2015-04-16
CN105722672A (zh) 2016-06-29
CN105722672B (zh) 2018-11-20
US10526158B2 (en) 2020-01-07
EP3055126B1 (fr) 2017-09-27
US20160250818A1 (en) 2016-09-01

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