EP3024625A1 - Verfahren und vorrichtung zur herstellung von säcken aus einem gewebe - Google Patents
Verfahren und vorrichtung zur herstellung von säcken aus einem gewebeInfo
- Publication number
- EP3024625A1 EP3024625A1 EP14757826.4A EP14757826A EP3024625A1 EP 3024625 A1 EP3024625 A1 EP 3024625A1 EP 14757826 A EP14757826 A EP 14757826A EP 3024625 A1 EP3024625 A1 EP 3024625A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fabric
- cutting
- tab
- bag body
- sack
- 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
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 10
- -1 Polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 14
- 238000001125 extrusion Methods 0.000 description 7
- 238000009958 sewing Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/001—Cutting tubes longitudinally
-
- 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
- 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
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B50/16—Cutting 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
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/10—Feeding or positioning 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
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/16—Cutting 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
- B31B70/26—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
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
-
- 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
- B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
-
- 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
- B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom 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
- 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
- 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
- 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
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
- B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
-
- 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
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/148—Cutting-out portions from the sides of webs or 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
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
Definitions
- the invention relates to a method for the production of sacks from a fabric, in which a flat fabric tube is provided, which has a sack front wall and a
- Sack back wall comprises, which lie flat on each other, and the flat fabric tube is fed to a cutting device in which the fabric tube is cut to order. to obtain individual tubular bag body, whereupon the tubular bag body are closed at at least one open end by turning over an end portion of the fabric, wherein the cutting of the fabric tube is carried out in a longitudinal transport step, in which
- Transport direction to be transported.
- the invention further relates to a device for
- the tubular body of a bag is usually formed from a tubular material or a tube connected to a flat material.
- a rough classification of such bags is made by the distinction in pillow and box shape.
- a pillow form of sacks usually arises by assembling the floors with a textile seam or a weld.
- the tissue consists preferably of monoaxial
- stretched polymer in particular polyolefin or
- Polypropylene tapes are made by stretching polymer, in particular polyolefin or
- Polypropylene films usually on the four- to
- Ribbon longitudinal direction are aligned and in these directions about six to ten times strength
- Ribbon width is usually about 1.5 to 10 mm, the thickness 20 to 80 ⁇ .
- a method and a device of the type mentioned are known for example from WO 2010/086232 AI.
- a device initially comprises a hose-forming device for the production and
- tubular material may also be present only a Schlauchabwickelvorraum. This is usually equipped with a material wrap on which tubular material is wound. From this material wrap the material is usually withdrawn continuously in the longitudinal direction. At the
- tubular bag bodies are transferred to a transport device. With the aid of this transport device, a change in the transport direction of one usually takes place
- Hose pieces transported in the direction of their longitudinal axes were, in a transverse transport, in which the hose pieces are now no longer transported in the direction of its tube longitudinal axis, but transversely thereto, so that
- At least one end of the hose pieces for at least one-sided closing of the bag or for producing a sack bottom are laterally accessible.
- Closing the bag is done for example by
- Another disadvantage is the limited sewing speed of the sewing head, so that with currently available machines a
- the invention therefore aims to make the bag closure such that the material of the bag is weakened by the closure as little as possible, so that the closed bag even under high mechanical
- the invention provides in a method of the type mentioned that the
- Closing of the bag body by turning over a flap formed from the bag rear wall takes place after the tab in the longitudinal transport section by cutting a
- Forming a tab allows a very simple and inexpensive connection of the folded tab with the bag body, wherein preferably a flat connection is made to maximize the holding forces. The fact that the tab was previously exposed, the tab
- Sack front wall to be connected to the bag body.
- the exposure of the tab includes the cutting away of a tissue section of the bag front wall, which would otherwise come to rest between the folded flap and the bag body.
- the process step of cutting the fabric tube and exposing the tab can be carried out in a single step, for example, by the two superimposed
- sack front wall and sack rear wall do not limit the invention to the fact that the tab is formed from a specific wall. Rather, these terms merely serve to distinguish one of the two walls from the other wall.
- the folded flap only connected to the sack front wall.
- a separating layer is advantageously inserted into the tubular bag body or applied a release layer.
- the separating layer preferably has a higher one
- Separating layer in particular a metal-containing separating layer, is preferably applied by a coating method.
- the release layer used here is preferably a metal-containing paint.
- Separation layer leads due to the metal content to heat dissipation, so that the sack rear wall is subject to a lower or substantially no heat input.
- the release liner may be an inboard, i. a arranged inside the tubular body, stationary tool, which spaced the front wall during the transverse transport of the bag body from the rear wall.
- this includes
- a rectangle is cut out by the cuts, wherein two cuts are made along the side edges of the fabric tube.
- two sections extend over the entire width of the fabric tube.
- the cuts are made in the longitudinal transport section, preferably on the tubular fabric. The cutting of the rectangle can be done before the cutting of the fabric tube, for example by punching a rectangle on the bag front wall or on the sack rear wall.
- An alternative procedure provides that one of the cuts is produced by the cutting of the fabric tube. It is preferred in terms of the order of the individual sections that at least two
- Cuts preferably three cuts are made before cutting the fabric tube. When cutting the fabric tube thus takes the last cut that is required for the exposure of the tab.
- any cutting method can be used, which is the ⁇ iin ⁇ s ch111 zes ensured in the tissue.
- At least one cut is made by pressing on a cutting tool
- a hot knife is made against the outer surface of the fabric, wherein on the inner surface of the fabric by means of a arranged in the interior of the fabric tube counter-pressure is generated.
- the hot knife has a temperature
- the flap is preferably folded so that even one of the tab adjacent, the bag front wall and the sack rear wall comprehensive area of the fabric tube is folded.
- Sack body prefers the connection of the folded flap with the bag front wall. Preference is given here to a cohesive connection. In particular, it does so
- Extrusion bonding is particularly preferred because it does not require pretreatment such as e.g. Corona treatment of
- Extrusion bonding is a process in which a still emerging from an extruder, still (thick) liquid extrudate on the
- the extrudate is preferably made of the same plastic as the fabric.
- Extrusion bonding allows secure bonding even when. uncoated fabric.
- a welding process a welding process
- the closing of the bag body is carried out according to the invention in a transverse transport section, in which the bag body extending in a direction transverse to its longitudinal direction
- the longitudinal direction of a bag body is understood to mean that direction parallel to the side edge of the bag body which connects the two open ends of the bag body.
- the method is carried out in a particularly advantageous and efficient manner when the folding over and if necessary connecting the tab during the transverse transport of the
- Bag body occurs, i. while the bag body moves in the transport direction.
- the end portion of the bag body to be closed thereby moves past a stationary envelope, adhesive and arry back device.
- the invention is preferably used in sacks whose fabric consists of monoaxially stretched polymer, in particular polyolefin or polypropylene tapes.
- the fabric can basically be coated or uncoated. In the case of a coating, this preferably consists of the same polymer as the polymer ribbons.
- the coating can be made of a thin layer of polypropylene or a
- the invention further proposes a device for
- Method comprising a first cutting device, the a flat fabric tube in the longitudinal direction of the
- At least one transport device which has a longitudinal transport section for transporting the fabric tube or the tubular bag body in the longitudinal direction of the Fabric hose and one
- Transverse transport section for transporting the bag body in a direction transverse to its longitudinal direction
- Longitudinal transport section arranged a second cutting device, which is designed for cutting out a portion of a bag front wall for exposing a formed of the bag rear wall tab, and the
- Covering device for folding over the flap.
- Sack body closing means comprises means for connecting the folded flap with the bag front wall.
- the Connecting means may preferably be a welding or
- Adhesive device include.
- the second cutting device is assigned an internal tool against which a knife of the cutting device can be pressed.
- the internal tool is in this case arranged so that it is in operation inside the
- internal tool can be preceded by means for spacing the superimposed layers of tissue of the flat tube of the bag body so that it does not come to collisions with the internal tool during transport of the tubular bag body.
- Heating device for heating the blade of the
- the internal tool has adjustment means for adjusting its overall width.
- the internal tool has at least two plate-like
- Tool elements which have mutually sliding inclined surfaces to change the overall width of the tool.
- the adjustment means comprise at least one spring element, which is the plate-like Tool elements towards the maximum
- Figure 2 is a sectional view taken along the line II-II, Fig. 3 a
- FIG. 4 shows a modified embodiment of the device
- Fig. 5 shows two obtained by the apparatus of FIG. 4 tubular bag body
- Fig. 6 and 7 an embodiment of
- FIG. 8 shows a modified training for gusseted bags and Figs. 9 - 11 a further
- a fabric hose 1 of the device in the direction of arrow 2 and supplied
- the fabric tube 1 is transported in the direction of arrow 2 within a longitudinal transport section 3 of the device.
- the fabric tube 1 is cut along the cutting lines 4, 5 and 6.
- the course of the cutting lines 4, 5 and 6 is shown in FIG. 1 dashed lines shown on the left, with the line 4 over the entire width of the tubular fabric. 1 extends and the lines 5 and 6 each extend along the edges 7 of the tubular fabric. The along the
- Cutting lines 4, 5 and 6 are made by means of the cutting device 8 cuts.
- Cutting device 8 comprises an inboard, i.
- the plate-shaped tool 10 serves as a counterpart for the externally acting on the tissue cutting blade.
- Cutting lines 5 and 6 acting cutting blades are designated 11.
- Cutting knife is designated 12 ( Figure 2).
- Cutting blades 11 are heatable and according to the
- Double Arrow 13 movably mounted to under
- Tissue along the cutting lines 4, 5 and 6 cuts produced.
- the section produced along the cutting line 4 is designated 14 in a further forwardly transported section of the tubular fabric.
- the section 14 is in this case only in the upper fabric layer or the
- Sack front wall 18 (Fig. 2) generated while the lower fabric layer or the bag rear wall 19 thereof remains unaffected.
- the lateral incisions produced along the cutting lines 5 and 6 are designated 15 and 16 in a further forwardly transported section of the tubular fabric.
- tubular fabric 1 is cut to length by means of a further cutting device, not shown, to individual tubular 14000149
- Tissue section can be recycled in the sequence by using an extruder for the production of
- Tissue band is supplied.
- tubular bag body 20 in one
- the bag body 20 in this case have open ends 26 and 27. in the
- the tab 23 of the bag body 20 is now along the indicated with 28 fold line forward, i. on the visible in the drawing surface of the upper fabric layer or the bag front wall 18, turned over and with this surface, e.g. connected by gluing. It then follows the designated 29 state of the
- Cutting device 8 urakraftt two rollers 9, by which the two fabric layers 18 and 19 of the fabric tube 1 are spaced apart.
- the cutting device 8 further comprises a subsequent in the transport direction 2 to the rollers 9 plate 10, which as a counterpart to the
- Cutting knife 12 is formed.
- the plate-shaped tool 10 is shown in detail.
- the tool is designed as an internal tool and comprises two plate-like tool elements 30 and 31.
- the plate-like tool element 31 is
- a spring element 32 ensures that the two
- Tool element 30 with increasing hose width by the spring member 32 is retracted again.
- the cutting device comprises a first cutting blade 12 and a second one arranged offset in the longitudinal direction
- the first cutting blade 12 cuts the bag front wall 18 along the cutting line 4 and the second cutting blade 35 snows the bag rear wall 19 along the cutting line 21.
- the cutting blade 11 analogous to the embodiment of FIG. 1, the lateral
- Fig. 6 is a modified embodiment of the
- Gussets are designated 36 and are in the designated 38 area with each other and with the
- Sack front wall 18 and the bag rear wall 19 is connected, in particular welded, to achieve a seal of the bag closure in Beriech the side folds.
- the tab 23 together with the welded areas 38 is folded over and connected to the bag body.
- stamps 37 of a welding device are shown, which serve to press together the fabric layers to be joined and to weld them together.
- FIG. 8 it is possible to proceed as shown in FIG. 8.
- the procedure is such that the side folds 36 are not cut during the production of the cut 14. Rather, be the gussets 36 cut in a separate section along the line 39, which is closer to the bag end than the cut 14. In this way, in the region of the tab 23 projecting portion of the
- FIG. 9 is a side view of a flat fabric tube 1 with two superposed fabric layers 18 and 19.
- Cutting device 42 preferably comprises two cutting blades, which can be pressed against the flat fabric hose from above and below, in order to cut through the fabric located between the cutting blades.
- By cutting the fabric tube is cut to one hand to obtain two bag body, and on the other hand at the two mutually facing end portions of the two bag body each exposed a tab, wherein after pulling apart the As a result, fabric layers (to remove the fold) result in a configuration as shown in FIG.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA604/2013A AT514545B1 (de) | 2013-07-26 | 2013-07-26 | Verfahren zur Herstellung von Säcken aus einem Gewebe |
PCT/AT2014/000149 WO2015010145A1 (de) | 2013-07-26 | 2014-07-25 | Verfahren und vorrichtung zur herstellung von säcken aus einem gewebe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3024625A1 true EP3024625A1 (de) | 2016-06-01 |
EP3024625B1 EP3024625B1 (de) | 2018-04-11 |
Family
ID=51428986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14757826.4A Not-in-force EP3024625B1 (de) | 2013-07-26 | 2014-07-25 | Verfahren und vorrichtung zur herstellung von säcken aus einem gewebe |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3024625B1 (de) |
CN (1) | CN105555493B (de) |
AT (1) | AT514545B1 (de) |
BR (1) | BR112016001731B1 (de) |
WO (1) | WO2015010145A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT515542B1 (de) * | 2014-04-03 | 2015-10-15 | Worff Herwig Dipl Ing | Verfahren zur Herstellung von Säcken aus einem Gewebeschlauch |
CN108374281B (zh) * | 2018-02-27 | 2019-08-30 | 青岛平成集装袋有限公司 | 一种吨袋剪布机及其裁剪工艺 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3390617A (en) * | 1962-02-28 | 1968-07-02 | Cloud Machine Corp | Packaging method and apparatus |
DE2530992C3 (de) * | 1975-07-11 | 1980-01-31 | Focke & Pfuhl, 2810 Verden | Vorrichtung zum Herstellen von Verpackungszuschnitten |
DE3408722A1 (de) * | 1983-12-08 | 1985-06-20 | Karl-Heinz Dr. 4802 Halle Sengewald | Abreissbeutel aus thermoplastischer kunststoffolie |
AT384995B (de) * | 1986-05-22 | 1988-02-10 | Chemiefaser Lenzing Ag | Verfahren zum herstellen eines ventilsackes und ventilsack hergestellt nach dem verfahren |
JP3408203B2 (ja) * | 1999-07-08 | 2003-05-19 | 日興商事株式会社 | 自動開口製袋方法およびその装置 |
DE10106289A1 (de) * | 2001-02-06 | 2002-08-29 | Windmoeller & Hoelscher | Verfahren zum Herstellen von Seitenfaltensäcken aus Kunststoffolie |
DE102008017444B4 (de) * | 2008-04-03 | 2011-07-28 | Windmöller & Hölscher KG, 49525 | Vorrichtung und Verfahren zur Herstellung von Säcken aus Schlauchstücken |
DE102008017442B4 (de) * | 2008-04-03 | 2013-01-17 | Windmöller & Hölscher Kg | Vorrichtung und Verfahren zur Herstellung von Säcken, welche Gewebe aus gereckten Kunststoffbändchen umfassen |
DE102009000454B4 (de) * | 2009-01-28 | 2018-10-31 | Windmöller & Hölscher Kg | Vorrichtung und Verfahren zur Herstellung von Säcken aus schlauchförmigem Material |
US9073281B2 (en) * | 2010-04-22 | 2015-07-07 | Coating Excellence International Llc | Method and system for making a stepped end |
-
2013
- 2013-07-26 AT ATA604/2013A patent/AT514545B1/de not_active IP Right Cessation
-
2014
- 2014-07-25 WO PCT/AT2014/000149 patent/WO2015010145A1/de active Application Filing
- 2014-07-25 EP EP14757826.4A patent/EP3024625B1/de not_active Not-in-force
- 2014-07-25 BR BR112016001731-5A patent/BR112016001731B1/pt not_active IP Right Cessation
- 2014-07-25 CN CN201480052689.0A patent/CN105555493B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2015010145A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3024625B1 (de) | 2018-04-11 |
AT514545A4 (de) | 2015-02-15 |
CN105555493B (zh) | 2019-04-23 |
AT514545B1 (de) | 2015-02-15 |
CN105555493A (zh) | 2016-05-04 |
BR112016001731B1 (pt) | 2021-02-02 |
BR112016001731A2 (pt) | 2017-08-01 |
WO2015010145A1 (de) | 2015-01-29 |
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