EP3802331A1 - Adjustable shaping shoulder - Google Patents
Adjustable shaping shoulderInfo
- Publication number
- EP3802331A1 EP3802331A1 EP19732265.4A EP19732265A EP3802331A1 EP 3802331 A1 EP3802331 A1 EP 3802331A1 EP 19732265 A EP19732265 A EP 19732265A EP 3802331 A1 EP3802331 A1 EP 3802331A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting element
- forming
- web
- shoulder
- packaging material
- 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.)
- Pending
Links
- 238000007493 shaping process Methods 0.000 title abstract description 6
- 239000005022 packaging material Substances 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
- B65B9/22—Forming shoulders; Tube formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
- B65B2009/063—Forming shoulders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B2220/00—Specific aspects of the packaging operation
- B65B2220/08—Creating fin seals as the longitudinal seal on horizontal or vertical form fill seal [FFS] machines
Definitions
- the invention relates to forming shoulders for the formation of bags with longitudinal seam, which are produced by sealing, welding or similar methods on the two inner sides of the fins to be joined and leave the radially projecting shaping by means of forming shoulder, not about folded.
- They can be for example:
- each half of the film web is shaped around a respective forming and filling tube.
- the fins are fixed against the middle of the film.
- Tubular bags are common in highly productive machines produced in multiple lanes. That is, a wide film roll is cut into multiple webs and each web is individually formed into a tube via a forming shoulder and longitudinally and transversely sealed.
- the working organs can be
- Deviations in the film run exist (about 0.5 to 1 mm). These can have different causes, which are not due to inaccuracies of the forming shoulder itself, but, for example, in uneven bumps, which are visible only after dividing the entire web in single tracks. This leads to the fact that the web edges of the shaped bags are no longer exactly one above the other. Thus, on one side of the finished bag on a then about 0.5 to 1 mm wide strip, the film inside visible. This represents a quality defect of the bag, because the visual impression is disturbed.
- Foil material is new to find. This means, when changing the material of the film web is a new set of
- the object of the invention is to provide a solution by means of the subsequent film run can be adjusted so that the web edges are always exactly on each other.
- Solution by the invention :
- Proposed is a forming shoulder for forming a flat packaging material web to a tubular bag with a
- Fin seam which has a forming surface and a prism surface, along a Umformkante each other
- an adjustable bracket is connected, and at at least one point in an area which is passed during the deformation of a web edge of the packaging material web, an adjustable
- the object is therefore achieved by positioning at a position in front of the seaming area by means of an adjustable adjusting element, e.g. a slider, for example, in the lower part of the forming surface
- the adjustment always works in the area of the web edge. It does not press exactly on the web edge but in such a way that an edge region of the packaging material web of, for example, 1 to 8 mm through the adjusting element relative to the forming surface
- the packaging material web is tensioned in the region of the web edge, so that it dodges and thus the Running direction of the packaging material web is shifted by a total of, for example, 1 to 4 mm.
- the adjusting element can be designed differently, for example as a milled block, as a flat sheet metal or as an angled sheet metal.
- the adjusting element replaces a portion of the forming surface in the region of its attachment and, by virtue of its adjustability, gives this portion the ability to be raised to a selectable degree with respect to the remainder of the forming surface.
- the adjustability can be realized for example parallel to the forming surface, but also transversely thereto.
- the adjusting element may for example be guided in a groove-like depression of the forming shoulder.
- the groove-like depression for example, in the
- Packing material web acts, resulting in a more or less strong influence on the direction of travel of the packaging material web.
- the adjusting element itself has an adjustment direction in the adjustment direction
- Adjusting element has variable thickness.
- a wedge-shaped slide could also be arranged directly on the forming surface, ie not in a groove, and its thickness in the region of the web edge by displacement and fixing on the forming surface
- the adjusting element extends in the adjustment direction of the adjusting element
- the invention is based on
- FIGS. 1 to 6 the invention is explained using the example of a twin-form shoulder.
- FIG. 1 shows a twin-form shoulder in the
- the adjusting element 4 can assume a rear position in which it exerts no force against the continuous web, and a front position in which it exerts a force against the outside of the web in the region of the web edge 8.
- Fig. 2 shows a section of a film tube in the state as it exists after leaving the forming shoulder. With a circle is that area of the
- Film tube marked which is to be influenced by the adjustment element 4 according to the invention.
- Fig. 3 shows the circled in Fig. 1 area in an enlarged view.
- the adjusting element 4 is in the rear position.
- the course of the web edge 8 is not affected by it.
- Fig. 4 shows the circled in Fig. 1 area in an enlarged view.
- the adjusting element 4 is in the front position. It touches the outside of the fin. The web edge 8 and the web are thereby lifted from the shoulder surface 1 and pushed towards the bag interior.
- Fig. 5 shows the circled in Fig. 2 area in an enlarged view.
- the shape result can be seen with the adjusting element 4 located in the rear position according to FIG. 3.
- the web edges 8 overlap slightly. A non-quality bag is created.
- Fig. 6 shows the circled in Figure 2. Area in an enlarged view.
- Web edges 8 abut each other. It will be a
- FIGS. 7 to 12 the invention is explained using the example of a simple asymmetrical forming shoulder.
- Fig. 7 shows a simple asymmetrical form shoulder in the overall view.
- the adjusting element 4 can assume a rear position in which it exerts no force against the continuous web, and a front position in which it exerts a force against the outside of the web in the region of the web edge 8.
- Fig. 8 shows a section of a film tube in the state as it after leaving the forming shoulder
- Film tube marked which is to be influenced by the adjustment element 4 according to the invention.
- FIG. 9 shows an enlarged view of the region indicated in FIG. 7 with an arrow which simultaneously indicates the viewing direction.
- the adjusting element 4 is in the rear position.
- the course of the web edge 8 is not affected by it.
- FIG. 10 shows an enlarged view of the region indicated by the arrow in FIG. 7.
- the adjusting element 4 is in the front position. This is shifted from the rear position by the path s. Thus, the adjusting element 4 touches the outside of the fin.
- the web edge 8 and the web are characterized by the shoulder surface. 1
- FIG. 11 shows the area circled in FIG. 8 in FIG.
- FIG. 12 shows the area circled in FIG. 8 in FIG.
- symmetrical refers to the fact that a circular bag cross-section is produced, which has a fin seam arranged exactly in the center
- the forming shoulder has on both sides in the lower regions of the forming surface 1 per adjusting element 4 in the form of a
- Slider 4 are each in a groove-like depression. 7 adjustably guided and lockable by means of a (not shown here) fixing screw in any position. Depending on the selected position of the slider 4 in the recess 7, the angled leg of the slider 4 projects more or less strongly beyond the forming surface 1 and thereby more or less strongly influences the direction of travel of the packaging material web.
- FIGS. 14 and 15 the invention is explained using the example of an asymmetrical forming shoulder with an adjusting element 4 on the long side of the forming surface 1.
- asymmetric refers to the creation of a bag cross-section having a laterally-disposed fin seam
- the two sides of the forming surface 1 differ considerably more than with a symmetrical forming shoulder.
- an adjusting element 4 is arranged on the "long" side of the forming surface 1, which comprises a milled block with a slot 5, which as
- FIG. 14 shows the adjusting element 4 in the disengaged position, in which no force is exerted on the packaging material web, and FIG. 15 in the engaged position, in which the adjusting element 4 influences the web travel.
- an adjusting element 4 is arranged on the "short" side of the forming surface 1, which comprises a flat plate with a slot 5, which is adjustable as a slide in a groove-like recess 7 and by means of a fixing screw 6 at a selectable position
- Fig. 16 shows the adjusting element 4 in the disengaged
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018113044 | 2018-05-31 | ||
PCT/EP2019/064230 WO2019229258A1 (en) | 2018-05-31 | 2019-05-31 | Adjustable shaping shoulder |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3802331A1 true EP3802331A1 (en) | 2021-04-14 |
Family
ID=66999779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19732265.4A Pending EP3802331A1 (en) | 2018-05-31 | 2019-05-31 | Adjustable shaping shoulder |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3802331A1 (en) |
WO (1) | WO2019229258A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230150706A1 (en) * | 2021-11-15 | 2023-05-18 | Southwest FormSeal, Inc. | Adjustable forming collar assembly |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296770A (en) * | 1965-01-13 | 1967-01-10 | Russell W Wilson | Adjustable package-forming machine |
DE102005016703A1 (en) * | 2005-04-01 | 2006-10-05 | Drut, Henry, Dr. | Forming shoulder for producing tubular sheet from flat sheet has shoulder section which curves flat sheet and is mounted at the top of triangular section with telescopic rails which form curved sheet into tube |
DE102011004297B3 (en) * | 2011-02-17 | 2012-05-31 | Henry Drut | Shaping shoulder for tubular bag packaging machine, has incoming packaging material web that faces mold elements and translationally moves between operating position and opening position |
-
2019
- 2019-05-31 WO PCT/EP2019/064230 patent/WO2019229258A1/en unknown
- 2019-05-31 EP EP19732265.4A patent/EP3802331A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019229258A1 (en) | 2019-12-05 |
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