WO2017191190A1 - Dispositif de transport et procédé de transport de sacs ou sachets ainsi que dispositif de fabrication de sacs ou sachets - Google Patents

Dispositif de transport et procédé de transport de sacs ou sachets ainsi que dispositif de fabrication de sacs ou sachets Download PDF

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Publication number
WO2017191190A1
WO2017191190A1 PCT/EP2017/060536 EP2017060536W WO2017191190A1 WO 2017191190 A1 WO2017191190 A1 WO 2017191190A1 EP 2017060536 W EP2017060536 W EP 2017060536W WO 2017191190 A1 WO2017191190 A1 WO 2017191190A1
Authority
WO
WIPO (PCT)
Prior art keywords
transport
bag
transport device
bags
sacks
Prior art date
Application number
PCT/EP2017/060536
Other languages
German (de)
English (en)
Inventor
Lasse Nagel
Klaus Ullmann
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 BR112018072730-0A priority Critical patent/BR112018072730B1/pt
Priority to EP17720815.4A priority patent/EP3452277B1/fr
Publication of WO2017191190A1 publication Critical patent/WO2017191190A1/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
    • 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
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B70/626—Arrangements for permitting the glue to set
    • 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
    • B31B70/643—Uniting opposed surfaces or edges; Taping by applying heat or pressure on piled sheets, e.g. sealing bags arranged in a pile
    • 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
    • B31B70/648—Uniting opposed surfaces or edges; Taping by applying heat or pressure using tools mounted on belts or chains

Definitions

  • the invention relates to a transport device for transporting sacks or bags according to the preamble of claim 1, a method for transporting sacks or bags according to the preamble of claim 13 and an apparatus for producing sacks or bags according to the preamble of claim 14.
  • Generic transport devices are necessary to transport individual semi-finished sacks, for example individual pieces of hose, to stations for bottoming or even finished bags, bags or the like (hereinafter abbreviated only as bags).
  • a plurality of transport devices are provided, for example, to accelerate the sacks in a subsequent transport device with respect to the preceding transport device.
  • a transport member basically pushes the bag with a pressing force against a counter-position.
  • this pressing force acts against the ground, it can happen in glued bag floors that not yet solidified adhesive is pressed out of the bonded areas and thereby glued the bag to the transport organ.
  • this danger does not exist with welded or hot-air-sealed bags, areas that should not be connected to one another can nevertheless be connected to one another due to the effect of heat (so-called blocking).
  • non-found lures can, for example, lead to malfunctions in bag filling machines.
  • the object of the present invention is therefore to provide a transport device and a method with which the sacks can be transported safely and with which undesired adhesions or enticements are avoided.
  • the object is achieved by the claim 1. Accordingly, it is provided in a defined by the preamble of claim 1 transport device that the pressure provided by the transport member pressing force is reduced in at least a portion of the soil.
  • the bag is transported according to the invention by resting the transport member on a floor safely.
  • the alternative approach that the transport member rests not on the ground, but on the bag body, especially in case of incorrectly manufactured bags can lead to disturbances, for example, if a bottom cover sheet has failed and raise the side flaps. Such a superscript side flap can lead to hooking of the bag in the manufacturing, which is often only manually eliminate.
  • a transport device works more reliably than a device without said measure.
  • a pressing force acting on the floor has the further advantage that the freshly glued, welded or hot air-sealed bags in addition be pressed to further strengthen the connection, so that the bag can ultimately be made more stable.
  • the invention provides that the pressing force is reduced in areas of the soil. Such areas are in particular edge regions of bonds, so that the adhesive is not pushed out here.
  • the area of the floor in which the described pressing force is reduced comprises the transition from a number of layers to a larger or smaller number of layers. Because such edges of layers are usually the places where the greatest pressure force prevails and therefore here the effects described above occur primarily.
  • the width of the transport member (measured transversely to the transport direction) is preferably less than the width of the bottom in order to avoid strong compression of the folding edges of the soil. Too much pressing can lead to damage of these folded edges, which could then burst, for example, when filling or even when dropping a filled bag.
  • the transition from a number of layers to a larger or smaller number of layers comprises the open end of a filling valve. This measure helps to increase the quality of the overall sack production.
  • the bottom of the bag or the bag is a cross bottom or a valve cross bottom bag.
  • the bag transported by the transport device is a cross-bottom bag and in particular a cross-bottom valve bag. Since its construction and production is relatively complex, there are great dangers of accidental bonding or blocking when transported by conventional means of transport. Therefore, the combination of the transport device according to the invention with cross bottoms is particularly advantageous.
  • each transport member rests on a respective bottom of the bag or the bag.
  • each bag or sack comprises at each of its ends a bottom, on each of which at least one transport member rests.
  • the task of safe transport is solved particularly well.
  • bags or bags are transportable with the transport device, which comprises heat-sealable material.
  • a heat-sealable material is characterized by the fact that heat is easily fused to the surface of the material from the surface, without the material is transferred over the entire layer thickness in the melt form, as is the case for example during welding.
  • a heat-sealable material is preferably a plastic, a plastic coating or a plastic fleece.
  • these plastics include or contain polyethylene (PE), the possibilities described above are given.
  • the transport device can transport sacks or bags which comprise a woven fabric of stretched polyolefin threads and a coating and in particular consist of this fabric and this coating.
  • the transport member in the region in which the pressing force is reduced, recesses, recesses, depressions or the like.
  • elevations are provided on the transport member in the vicinity of the areas where the pressing force is reduced. It is understood that these elevations may not be in those areas, since the elevations provide an increased pressing force. Compared to this increased pressing force, the pressing force is reduced in the above areas.
  • Such elevations can be elongated. It is advisable that these run transversely to the transport direction of the transport organs. It may be provided in one embodiment, to provide a plurality of elevations and to provide in said areas with reduced pressing force a large distance between two adjacent elevations, which completely eliminates said area. It is also advantageous if these elevations are releasably secured to the transport member to offset these increases or to replace them with other increases.
  • the transport member according to the invention can be adapted to the actually produced bottom geometry.
  • the elevations may include resilient material which, for example, develops a spring-like force effect.
  • the value is provided that the transport member comprises at least two recesses, recesses, depressions or the like, whose distance corresponds to the distance between two transported with the transport bag or bag.
  • the "distance between two bags” does not mean the empty space between two bags, but rather the distance between two identical points or lines, such as the distance between the front edges of two bags, the distance being measured parallel to the transport direction.
  • this comprises at least one circulating transport belt.
  • the invention is particularly easy to implement, especially when the conveyor belt recesses, recesses, wells or the like.
  • Such recesses, recesses, depressions or the like can be easily considered in the manufacturing process of the conveyor belt.
  • the recesses, recesses, depressions or the like can subsequently, for example, by machining, bring in the transport belt.
  • in particular already existing transport devices can be used according to the invention by the conveyor belts are subsequently designed according to the alternative described above.
  • the counter-covering comprises at least one circulating transport belt. This is preferably at the same transport speed as the transport member described above, designed as a transport belt to move, so that the bags can be transported reliably and safely.
  • the invention provides that the pressure force provided by the transport member is reduced in at least a portion of the soil.
  • Fig. 1 top view of a transfer station with a first
  • Transport device and a second transport device according to the invention Transport device and a second transport device according to the invention.
  • FIG. 1 side view of a transfer station according to FIG. 1
  • FIG. 3 detail view of a bag, with the inventive
  • Transport device is transported
  • FIG. 4 Detail view of a bag, which is transported by a further transport device according to the invention
  • FIG. 5 detailed view of a bag, which is transported by a further transport device according to the invention
  • Fig. 6 Apparatus for the production of sacks or bags
  • FIG. 1 shows a transfer station 100 with a first transport device 101, with which at least one bag 102 can be transported.
  • Transport device 101 is preferably used to transport bags to various processing stations within a sack or bag manufacturing apparatus shown in FIG.
  • the transport device preferably comprises two pairs of transport belts 103 and 103 ', each comprising an upper belt 104, 104' and a lower belt 105 and 105 '.
  • the lower belt may be occupied by magnets and the upper belt may contain a magnetizable material, so that there is a magnetic attraction between the two belts.
  • a further transport device 110 is provided, which is designed according to the invention already described above.
  • the bags can be transported faster than in the first transport device 101, so that two successive bags take a sufficiently large distance for the stacking.
  • the transport device 110 comprises two conveyor belt pairs 111 and 111 ', each comprising an upper belt 112 and 112' and a lower belt 113 and 113 ', wherein the respective lower belt 113, 113' serves as a counter for the respective upper belt 112, 112 ', wherein the Sack is transported between the upper belt and the associated lower belt.
  • One measure may be an adhesion-promoting coating of the transport belts 112, 112 ', 113, 113'.
  • a further measure may be devices which act on the individual conveyor belt with a respective force, which is directed in the direction of the respective other belt. Such devices may be pinch rollers that are spring-loaded and press on the backs of the belts.
  • the top straps 112, 112 'and the bottom straps 113, 113' are shown with different widths in this view for the sake of clarity, but can have an equal width in the practical implementation. The width of these belts preferably corresponds to the smallest, in the apparatus for the production of sacks or bags producible bottom width.
  • This smallest floor width is preferably greater than 60 mm, in particular greater than 75 mm.
  • the width of these belts is slightly smaller than the smallest, in the apparatus for producing bags or bags producible bottom width.
  • the bag 102 is conveyed in the so-called transverse transport. This means that the bag longitudinal axis is aligned transversely to the transport direction z.
  • FIG. 2 shows the transfer station 100 already shown in FIG. 1 in a side view, the bag 102 not being shown.
  • the reference numerals of the transport belt pairs and the individual belts have been taken from FIG.
  • the upper belt 104 'of the transport belt pair 103' which is preferably a steel belt, is guided over a deflecting wheel 201, which rotates in the direction of rotation R1 and can be driven thereby.
  • the lower belt 105 ' is guided over the deflection wheel 202, which rotates in the direction of rotation R2. This deflecting wheel 202 can also be driven.
  • the pulleys for the upper belt can be arranged on a common axis. The same applies to the pulleys for the lower belt.
  • the upper belt 112 'of the transport belt pair 1 11' is guided over the deflection wheel 203, which rotates in the direction of rotation R3. Furthermore, the lower belt 112 'of the transport belt pair 111' is guided via the deflecting wheel 204, which rotates in the direction of rotation R4. As in the case of the transport belt pair 103 ', the deflecting wheels of the transport belt pair 111' can be driven. It is understood that the upper and lower belts of the conveyor belt pairs 103, 103 ', 111, 111' can be deflected via further deflecting means, such as further deflecting wheels or rollers, since the upper and lower belts are preferably circulating.
  • the deflecting wheel 203 is spaced in the vertical direction from the transport plane of the bags, d. H. that the upper belt 112 'is not in contact with the bags after leaving the deflection wheel 203.
  • a contact can be produced in that a deflection roller 205 is provided, via which the upper belt 112 'can additionally be guided, so that the deflection roller 205 presses the upper belt 112' onto the bag.
  • the lower belt 113 'and the part of the upper belt 112' running between the deflecting wheel 203 and the deflecting roller 205 form an inlet hopper for a bag 102 in order to securely grasp it without buckling or warping of the bag.
  • the deflection roller 205 is arranged at a position in the transport direction z, at which the lower belt 105 'of the transport belt pair is not or just just comes in contact with the deflection wheel 202. In this way, an overlap of the transport devices 101 and 110 is ensured, so that the bag 102 is guided during the transfer at any time without sufficient hard forces. This also avoids buckling of parts of the bag or a change in the relative position of the bag 102 to the transport means.
  • FIG. 3 now shows the upper belt 112 'and the lower belt 113' of the transport belt pair 111 'in detail.
  • the transport belt pair 111 is preferably configured in the same way.
  • a bag 102 is shown in addition, which is moved between the two belts 112 'and 113' by clamping.
  • the bag 102 may be provided with a valve 122, which may be part of one of the two trays 120, 120 '.
  • the valve is a tubular piece, which ensures access from the outside into the interior of the bag 102 in order to be able to fill it, but also to prevent later leakage of the product. For filling it is therefore that access through the valve is not blocked, such as by the fact that the layers of the valve connect with each other.
  • a recess 302 is introduced, with the result that the upper belt in this area does not press the bag or at least with reduced force against the lower belt 113'.
  • the recess 302 can be made approximately by machining.
  • the depth of the recess can be at least 1 mm, but preferably at least 5 mm.
  • belts used in pairs of transport belts are reinforced by metal wires to reduce the longitudinal stretchability of the belts. In this case, the depth of the recess is just so large that the metal wires are still covered with at least 1 mm of material. This prevents corrosion of the metal wires.
  • the addressed material of the belt may comprise a rubber or a plastic, such as polyurethane. These materials are easy to process later.
  • the location of the recess is chosen so that it covers the front edge 123 of the valve 122.
  • Straight at the front edge 123 is the pressing within the transport device 101, because if the layers of the valve are connected to each other at the leading edge, a filling tube of a filling device can not gain access to the interior of the bag 102.
  • a connection is not very critical because a filling tube, which could be introduced in the front area in the valve, can again separate such a connection.
  • the recess in the rear region seen in the transporting direction z, can cover the valve, as can be seen, for example, in FIG.
  • the recess at least 1 cm, but preferably at least 5 cm long. Furthermore, it is provided that the recess is a maximum of 20 cm long, in particular a maximum of 15 cm, so as not to excessively reduce the tensile strength of the belt.
  • the width of the recess transversely to the transport direction preferably corresponds to the width of the belt, ie that no webs or the like remain in the lateral areas of the belt. In another embodiment, webs, preferably with a width of at most 1 cm, may also be advantageous in order to at least partially maintain the strength of the belt as compared to belts without recesses 302.
  • FIG. 4 shows an alternative embodiment of the invention.
  • the obemeem 112 ' is now occupied by elevations 310. Accordingly, it is now not the complete upper belt 112 'at the bottom, but only this increase 310, which now presses the bag 102 and its bottom against the lower belt 113'.
  • a line-like or punctual pressing force is provided.
  • FIG. 5 shows a modification of the embodiment of the invention shown in FIG.
  • elevations 320 can be seen. These elevations 320 may be designed to be lower than the elevations 310 in FIG. 4. However, further elevations are not provided, so that the upper belt 112 'rests on the floor outside the area in which the pressing force is reduced in this exemplary embodiment. Due to the flexibility of the belt this is slightly deflected by the elevations 320, which is not problematic for the reliability. Also in this exemplary embodiment, the region in which the pressing force is reduced, limited by the elevations 320.
  • the elevations 310, 320 in the exemplary embodiments of FIGS. 4 and 5 can be fixedly arranged or detachable on the upper belt 112 '.
  • the latter serves to be able to adapt the pressing force to the dimensions of the soil.
  • the ridges 310, 320 may be single, preferably in-line pimples.
  • elongated elevations, such as bars or rods may be provided.
  • the elongated elevations and / or the nubs arranged in series advantageously extend transversely to the transport direction z on the surface of the upper belt 112 '.
  • FIG. 6 now shows an apparatus for the production of sacks or bags 401.
  • a material tube 402 is supplied to the device 401. This advantageously takes place by unwinding the material hose forming a roll 403 in a unwinding device 404. Subsequently, the hose 402 can experience the so-called opening in the opening station 405. In this case, the material tube 402 is guided around an inner tool which separates the two layers, so that the layers, if they are in one of the manufacturing steps of the material tube 402 with each other were glued, separate. Only with separate layers can it be ensured that the following production steps can be carried out properly. Afterwards, the separate material layers of the hose are put back on top of each other.
  • the material hose 402 is then fed to the cross-cutting device 406, which separates the material hose 402 into individual pieces of hose.
  • a change in the original transport direction x in which the tube or pieces of tubing were transported in the direction of their longitudinal axes, takes place in the new transport direction z, so that the tube pieces are no longer in the direction x of their tube longitudinal axis (hereinafter also Extension direction of the hose pieces called), but are transversely transported thereto, so that the ends of the hose pieces for the purpose of Anformung of bottoms 120, 120 '(see Figure 1) are laterally accessible.
  • both ends of each tube piece are opened and the so-called ground rectangles are laid.
  • a valve 122 is placed and secured on one of the two open ends.
  • the open bottoms are now closed in the bottom closure station 410, with two tabs placed one on top of the other.
  • the tabs can additionally be connected to each other permanently, for example by welding.
  • the conclusion of the actual Sackherstellreaes forms the application of a ground cover sheet on the floors in the cover sheet station 411.
  • the cover sheets can also be welded or sealed by means of hot air.
  • the finished sacks are then taken over by the transport device 110, deposited by the latter on the sack stack 413 and removed therefrom in a manner not described in greater detail.

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

Abstract

L'invention concerne un dispositif de transport (101) de sacs ou sachets, comprenant au moins un organe de transport s'étendant dans la direction de transport (z), lequel organe reposant sur un fond (120, 120') du sac (102) ou sachet, et une butée correspondante, contre laquelle l'organe de transport appuie sur le sac (102) ou sachet en exerçant une force de pression. La force de pression (fournie par l'organe de transport) est réduite au moins dans une zone du fond (120, 120').
PCT/EP2017/060536 2016-05-03 2017-05-03 Dispositif de transport et procédé de transport de sacs ou sachets ainsi que dispositif de fabrication de sacs ou sachets WO2017191190A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112018072730-0A BR112018072730B1 (pt) 2016-05-03 2017-05-03 Dispositivo de transporte de sacos ou sacolas e dispositivo para a produção dos mesmos
EP17720815.4A EP3452277B1 (fr) 2016-05-03 2017-05-03 Dispositif de transport et procédé de transport de sacs ou sachets ainsi que dispositif de fabrication de sacs ou sachets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016207567.5A DE102016207567A1 (de) 2016-05-03 2016-05-03 Transporteinrichtung und Verfahren zum Transport von Säcken oder Beuteln sowie Vorrichtung zur Herstellung von Säcken oder Beuteln
DE102016207567.5 2016-05-03

Publications (1)

Publication Number Publication Date
WO2017191190A1 true WO2017191190A1 (fr) 2017-11-09

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ID=58664722

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/060536 WO2017191190A1 (fr) 2016-05-03 2017-05-03 Dispositif de transport et procédé de transport de sacs ou sachets ainsi que dispositif de fabrication de sacs ou sachets

Country Status (3)

Country Link
EP (1) EP3452277B1 (fr)
DE (1) DE102016207567A1 (fr)
WO (1) WO2017191190A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524968B1 (de) * 2021-04-29 2022-12-15 Starlinger & Co Gmbh Vorrichtung und Verfahren zur Herstellung von Säcken aus Schlauchstücken

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121836A1 (fr) * 2008-04-03 2009-10-08 Windmöller & Hölscher Kg Dispositif et procédé pour produire des sacs
EP2441574A1 (fr) * 2010-10-14 2012-04-18 Starlinger & Co Gesellschaft m.b.H. Procédé et dispositif de développement de sols ouverts sur des zones d'extrémité de corps de sachets tubulaires

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Publication number Priority date Publication date Assignee Title
DE1186201B (de) * 1963-02-28 1965-01-28 Windmoeller & Hoelscher Vorrichtung zum Verschweissen der offenen Enden von Schlauchabschnitten aus thermoplastischem Material
US3326735A (en) * 1964-11-30 1967-06-20 Phillips Petroleum Co Continuous sealing of biaxial oriented film
DE2527479A1 (de) * 1975-06-20 1976-12-30 Hesser Ag Maschf Vorrichtung zum schweissen von thermoplastischen folien
DE20113851U1 (de) * 2001-08-22 2002-01-03 Toss Gmbh & Co Kg Vorrichtung und Metallband zum Heißsiegeln
US6929594B2 (en) * 2002-09-30 2005-08-16 Illinois Tool Works Inc. Belt drive assembly for feeding zipper tape
US7685795B2 (en) * 2005-06-29 2010-03-30 Shanklin Corporation Grip belt drive system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121836A1 (fr) * 2008-04-03 2009-10-08 Windmöller & Hölscher Kg Dispositif et procédé pour produire des sacs
EP2441574A1 (fr) * 2010-10-14 2012-04-18 Starlinger & Co Gesellschaft m.b.H. Procédé et dispositif de développement de sols ouverts sur des zones d'extrémité de corps de sachets tubulaires

Also Published As

Publication number Publication date
DE102016207567A1 (de) 2017-11-09
BR112018072730A2 (pt) 2019-02-19
EP3452277B1 (fr) 2022-11-16
EP3452277A1 (fr) 2019-03-13

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