WO2005095213A1 - Process for producing packaging items for light goods - Google Patents

Process for producing packaging items for light goods Download PDF

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Publication number
WO2005095213A1
WO2005095213A1 PCT/EP2005/002384 EP2005002384W WO2005095213A1 WO 2005095213 A1 WO2005095213 A1 WO 2005095213A1 EP 2005002384 W EP2005002384 W EP 2005002384W WO 2005095213 A1 WO2005095213 A1 WO 2005095213A1
Authority
WO
WIPO (PCT)
Prior art keywords
film tube
packaging
process according
anyone
film
Prior art date
Application number
PCT/EP2005/002384
Other languages
French (fr)
Inventor
Peter Wilhelmus Henricus Rietjens
Original Assignee
Cfs Weert B. V.
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 Cfs Weert B. V. filed Critical Cfs Weert B. V.
Priority to US10/591,631 priority Critical patent/US20080034711A1/en
Publication of WO2005095213A1 publication Critical patent/WO2005095213A1/en

Links

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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B9/213—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 the web having intermittent motion

Definitions

  • the present invention relates to a process for packaging goods with a vertical packaging machine in a film, whereas cross seals are applied to a film tube with sealing means.
  • goods with a very low and/or changing packaging density like for example salads are packaged with a vertical packaging machine into packaging items made of a plastic film.
  • the packaging items are produced by applying a cross seal to a film tube, inserting the light goods into the cross sealed film tube via a fill pipe and applying another cross seal in order to close the packaging item; i. e. a bag.
  • this process has the disadvantage, that due to the low packaging density of the goods, these packages are either very large or very small amount of goods can be packaged into a given bag.
  • the problem is solved by a process for packaging goods on a vertical packaging machine into a film, whereas a film tube is formed and a cross seal is applied to the lower end of a film tube to form the bottom of a packaging item, whereas the film tube above the sealing means is lowered while the film tube is at least partially fixed by sealing means and/or fixing means, to an extent that at least the bottom of the packaging item expands.
  • one portion is filled into tube, while the tube is fixed.
  • this fill in of the portion expands the bottom of the packaging item.
  • At least parts of one portion to be packaged are collected in the film tube and/or in a fill pipe and then dropped downwards and that the impact of the falling portion is used to compress the portion.
  • An other subject matter of the present invention is a process for packaging goods on a vertical packaging machine into a film, comprising the following steps:
  • a. cross-sealing of the lower end of a film tube to form the bottom of a packaging item b. filling one portion of the goods into the film tube, c. fixing the lower end of the film tube and/or the portion in its vertical position d. releasing the fixed portion and the film tube, e. vertically transporting and/or dropping the film tube, f. dropping the portion, g. stopping the transportation of the film tube, h. cross sealing the upper end of the film tube to form the top of the packaging item and i. separating the packaging item from the film tube,
  • the inventive process it is possible to improve the packaging of goods, like salad, with a low and/or over the year changing packaging density. Due the expanded bottom of the packaging item and/or due to the impact of the falling portion, the goods are compressed and/or more goods can be filled into a given bag.
  • the process is easily executed and can be carried out on nearly all vertical flow wrappers. Even existing flow wrappers can be modified easily in order to execute the inventive process.
  • Figure 1 shows one embodiment of the inventive process.
  • Figure 2 shows an other embodiment of the inventive process.
  • Figure 3 shows a third embodiment of the inventive process.
  • FIG 1 one embodiment of the inventive process is depicted.
  • the packaging machine comprises a fill pipe 10 which is surrounded by a film tube 1.
  • the film tube 1 can be made out of a flat film web by applying a longitudinal seal with longitudinal sealing means which are not depicted, but which are known by a person skilled in the art.
  • the film tube 1 is transported along the film pipe 10 by transporting means 17.
  • At the lower end 5 of the film tube 1 there are sealing means 9. With these sealing means cross seals 13, 14 are applied to the film tube.
  • the movement of the sealing means 9 is depicted by arrows 15. As soon as the sealing means move together, the film tube 1 is at least partially fixed.
  • the closed sealing means 9 is shown in order to apply the cross seal 13 to the film tube 1.
  • the bottom 2 of the packaging item is now V-shaped.
  • the sealing means 9 fix the lower end 5 of the film tube and the portion 4 in its vertical position 6.
  • the sealing means remain close and one portion 4 to be packaged is filled into the film tube 1 via the fill pipe 10, but has not jet bin dropped to the bottom of the packaging item.
  • the upper part of the film tube 1 is transported vertically by transportation means 17, as depicted by arrow 16, in order to an expand that least, the bottom 2 of the packaging item, as can be seen in the forth drawing from the left.
  • the dropping portion enhances the expansion of the bottom.
  • the sealing means 9 are open, so that the film tube and the portion 4 are released. It can be clearly seen, that the expanded bottom 2 remains in it altered shape.
  • the film tube 1 is moved downwardly by the transportation means 17.
  • the total transportation-length of the film tube is equivalent to the height of the packaging item.
  • the cross seal 14 are applied, as depicted in the very right drawing of figure 1. This cross seal 14 is applied to the film tube by moving the sealing means 9 together and the process continues from the start. In figure 2, an other embodiment of the inventive process is shown.
  • the packaging machine according to figure 3 comprises fixing means 12 which can be for example rods.
  • fixing means can be moved together and apart as depicted by arrows 18, in order to maintain parts of the film tube 1 and at least parts of the portion 4 in their vertical position.
  • sealing means 9 are moved together in order to apply a cross seal to the film tube 1.
  • the portion 4 is added to the sealed film tube 1 via the fill pipe 10.
  • the sealing means 9 remain closed in order to fix the film tube 1 as well as the portion 4 in their vertical positions.
  • subsequently fixing means 12 are moved together in order to clamp the film tube 1 and the portion 4 in their vertical positions.
  • the fixing means need not touch each other, but just clamp the portion 4 between them by a certain extent.
  • the film tube above the fixing means is lowered to a certain extent by the transportation means 17, as depicted by arrow 16, so that wrinkles 11 are formed in the film tube 1 and the bottom 2 of the packaging item expands.
  • the length of the transportation 16 of the film tube 1 is equivalent to the needed height for the bag 3 including cross seal 14.
  • the sealing means 9 and then the fixing means 12 are moved apart, so that the preformed film tube 1 which covers the portion 4 and the portion 4 rushes downwards.
  • FIG 3 The last embodiment of the inventive process is shown in figure 3.
  • This embodiment is essentially identical with the embodiment according to figure 3 with the difference that after the application of cross seal 13 and the addition of portion 4 into the sealed film tube 1 , the cross seal 15 are moved apart and the film tube is lowered slightly as depicted by arrow 16.
  • the fixing means 18 are moved together (3 rd drawing from the right) and the part of the film tube 1 above the fixing means 12 is lowered further, so that wrinkles 11 are formed into this part of the film tube 1 and it expands.
  • the length of the two downward movements 6 in figure 4 ( 3rd and 4 th drawing) is equivalent to the final height of the packaging item 3.
  • the fixing means 18 are moved apart, so that the portion 4 plus the sealed tube move downwards.
  • the portion 4 hits the bottom 2 of the sealed film tube 1 and forms the bag and/or is compressed.
  • the last step is the application of cross seal 14 in order to complete the bag and cut the completed bag from the film tube 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

The present invention relates to a process for packaging goods and a vertical packaging machine in a film, whereas cross seals are applied to a film tube (1) with sealing means (9).

Description

Process for producing packaging items for light goods
The present invention relates to a process for packaging goods with a vertical packaging machine in a film, whereas cross seals are applied to a film tube with sealing means.
Nowadays, goods with a very low and/or changing packaging density like for example salads are packaged with a vertical packaging machine into packaging items made of a plastic film. The packaging items are produced by applying a cross seal to a film tube, inserting the light goods into the cross sealed film tube via a fill pipe and applying another cross seal in order to close the packaging item; i. e. a bag. However, this process has the disadvantage, that due to the low packaging density of the goods, these packages are either very large or very small amount of goods can be packaged into a given bag.
It was therefore the objective of the present invention to improve the packaging process for goods with a low and/or changing packaging density.
The problem is solved by a process for packaging goods on a vertical packaging machine into a film, whereas a film tube is formed and a cross seal is applied to the lower end of a film tube to form the bottom of a packaging item, whereas the film tube above the sealing means is lowered while the film tube is at least partially fixed by sealing means and/or fixing means, to an extent that at least the bottom of the packaging item expands.
Preferably, one portion is filled into tube, while the tube is fixed. Preferably, this fill in of the portion expands the bottom of the packaging item.
Preferably or according to another subject matter of the present invention, at least parts of one portion to be packaged are collected in the film tube and/or in a fill pipe and then dropped downwards and that the impact of the falling portion is used to compress the portion. An other subject matter of the present invention is a process for packaging goods on a vertical packaging machine into a film, comprising the following steps:
a. cross-sealing of the lower end of a film tube to form the bottom of a packaging item, b. filling one portion of the goods into the film tube, c. fixing the lower end of the film tube and/or the portion in its vertical position d. releasing the fixed portion and the film tube, e. vertically transporting and/or dropping the film tube, f. dropping the portion, g. stopping the transportation of the film tube, h. cross sealing the upper end of the film tube to form the top of the packaging item and i. separating the packaging item from the film tube,
whereas the sequence of the steps is not fixed, at least one step is executed twice and /or the steps can be carried out simultaneously.
Further preferred embodiments are claimed in the dependant claims 6 - 16.
With the inventive process, it is possible to improve the packaging of goods, like salad, with a low and/or over the year changing packaging density. Due the expanded bottom of the packaging item and/or due to the impact of the falling portion, the goods are compressed and/or more goods can be filled into a given bag. The process is easily executed and can be carried out on nearly all vertical flow wrappers. Even existing flow wrappers can be modified easily in order to execute the inventive process.
The inventive process will now be described in greater details hereinafter in connection with the figures 1 - 3 which illustrate different embodiments of the present invention, without limiting the scope of protection of the present invention.
Figure 1 shows one embodiment of the inventive process. Figure 2 shows an other embodiment of the inventive process.
Figure 3 shows a third embodiment of the inventive process.
In figure 1, one embodiment of the inventive process is depicted. On the left hand side a vertical packaging machine is schematically depicted. The packaging machine comprises a fill pipe 10 which is surrounded by a film tube 1. The film tube 1 can be made out of a flat film web by applying a longitudinal seal with longitudinal sealing means which are not depicted, but which are known by a person skilled in the art. The film tube 1 is transported along the film pipe 10 by transporting means 17. At the lower end 5 of the film tube 1 , there are sealing means 9. With these sealing means cross seals 13, 14 are applied to the film tube. The movement of the sealing means 9 is depicted by arrows 15. As soon as the sealing means move together, the film tube 1 is at least partially fixed. In the next drawing of figure 1, the closed sealing means 9 is shown in order to apply the cross seal 13 to the film tube 1. The bottom 2 of the packaging item is now V-shaped. The sealing means 9 fix the lower end 5 of the film tube and the portion 4 in its vertical position 6. In the next picture, the sealing means remain close and one portion 4 to be packaged is filled into the film tube 1 via the fill pipe 10, but has not jet bin dropped to the bottom of the packaging item. Before, simultaneously or after the dropping of the portion on the bottom 2 of the packaging item, the upper part of the film tube 1 is transported vertically by transportation means 17, as depicted by arrow 16, in order to an expand that least, the bottom 2 of the packaging item, as can be seen in the forth drawing from the left. Preferably the dropping portion enhances the expansion of the bottom. Afterwards, the sealing means 9 are open, so that the film tube and the portion 4 are released. It can be clearly seen, that the expanded bottom 2 remains in it altered shape. Finally, the film tube 1 is moved downwardly by the transportation means 17. The total transportation-length of the film tube is equivalent to the height of the packaging item. After the downward movement 16 of the film tube 1 has been stopped, the cross seal 14 are applied, as depicted in the very right drawing of figure 1. This cross seal 14 is applied to the film tube by moving the sealing means 9 together and the process continues from the start. In figure 2, an other embodiment of the inventive process is shown. Additionally to the features of the packaging machine as already explained in figure 1, the packaging machine according to figure 3 comprises fixing means 12 which can be for example rods. These fixing means can be moved together and apart as depicted by arrows 18, in order to maintain parts of the film tube 1 and at least parts of the portion 4 in their vertical position. In a first step, sealing means 9 are moved together in order to apply a cross seal to the film tube 1. Subsequently, the portion 4 is added to the sealed film tube 1 via the fill pipe 10. The sealing means 9 remain closed in order to fix the film tube 1 as well as the portion 4 in their vertical positions. However, a person skilled in the art understands that this is not essential for the embodiment of the inventive process according to figure 2. As can be seen from the forth drawing from the left, subsequently fixing means 12 are moved together in order to clamp the film tube 1 and the portion 4 in their vertical positions. Regarding figures 2 and 3, the person skilled in the art understands, that the fixing means need not touch each other, but just clamp the portion 4 between them by a certain extent. After the fixing means 12 have been applied, the film tube above the fixing means is lowered to a certain extent by the transportation means 17, as depicted by arrow 16, so that wrinkles 11 are formed in the film tube 1 and the bottom 2 of the packaging item expands. The length of the transportation 16 of the film tube 1 is equivalent to the needed height for the bag 3 including cross seal 14. Subsequently, first the sealing means 9 and then the fixing means 12 are moved apart, so that the preformed film tube 1 which covers the portion 4 and the portion 4 rushes downwards. This downward movement causes a compression of the pachaging goods and/or enhanced the expansion of the bottom of the packaging item. Finally, cross seal 14 is applied and the finalized packaging item is cut from the film tube. The person skilled in the art understands, that in this example the fixing means are not essentially needed.
The last embodiment of the inventive process is shown in figure 3. This embodiment is essentially identical with the embodiment according to figure 3 with the difference that after the application of cross seal 13 and the addition of portion 4 into the sealed film tube 1 , the cross seal 15 are moved apart and the film tube is lowered slightly as depicted by arrow 16. After that, the fixing means 18 are moved together (3rd drawing from the right) and the part of the film tube 1 above the fixing means 12 is lowered further, so that wrinkles 11 are formed into this part of the film tube 1 and it expands. As explained already in figure 2, the length of the two downward movements 6 in figure 4 (3rd and 4th drawing) is equivalent to the final height of the packaging item 3. Finally, the fixing means 18 are moved apart, so that the portion 4 plus the sealed tube move downwards. The portion 4 hits the bottom 2 of the sealed film tube 1 and forms the bag and/or is compressed. The last step is the application of cross seal 14 in order to complete the bag and cut the completed bag from the film tube 1.
The person skilled in the art understands, that the all inventive processes can be executed intermittently or continuously.
Reference numbers
1 Film tube
2 bottom of the packaging item
3 Packaging item
4 portion
5 lower end of the film tube
6 vertical position of the film tube and/or portion
8 upper end of the film tube to form the top of the packaging item
9 sealing means
10 filled pipe
11 wrinkles
12 fixing means 13, 14 cross seal
15 arrow depicting the movement of the sealing means
16 arrow depicting the movement of the film tube
17 transportation means
18 arrow depicting the movement of the fixing means

Claims

Claims:
1. Process for packaging goods on a vertical packaging machine into a film, whereas a film tube (1 ) is formed and a cross seal is applied to the lower end of a film tube (1) to form the bottom (2) of a packaging item (3), characterized in, that film tube (1) above the sealing means is lowered while the film tube (1) is at least partially fixed by sealing means (9) and/or fixing means (12), to an extent that at least the bottom of the packaging item expands.
2. Process according to claim 1 , characterized in that one portion is filled into tube, while the tube is fixed.
3. Process according to claim 2, characterized in, that the fill in of the portion expands the bottom of the packaging item.
4. Process according to the preamble of claim 1 , characterized in, that during the packaging process at least parts of one portion (4) to be packaged are collected in the film tube (1) and/or in a fill pipe (10) and then dropped downwards and that the impact of the falling portion is used to compress the portion (4).
5. Process, preferably according to one of the preceeding claims, for packaging goods on a vertical packaging machine in a film, comprising the following steps: a. cross-sealing of the lower end of a film tube (1 ) to form the bottom (2) of a packaging item (3), b. filling one portion (4) of the goods into the film tube (1), c. fixing the lower end (5) of the film tube and/or the portion (4) in its vertical position (6) d. releasing the fixed portion (4) and the film tube (1 ), e. vertically transporting the film tube (1 ) and/or dropping the film tube (1 ), f. dropping the portion (4) g. stopping the transportation of the film tube (1 ), h. cross sealing the upper end (8) of the film tube to form the top of the packaging item (3) and i. separating the packaging item from the film tube, whereas the sequence of the steps is not fixed, at least one step is executed twice and /or the steps can be carried out simultaneously.
6. Process according to claim 5, characterized in, that steps e. and f . and/or steps a. and c. are carried out essentially simultaneously and/or that step e is carried out twice.
7. Process according to claim 5, characterized in, that it comprises steps a - c, e, d - i, preferably in this sequence.
8. Process according to anyone of the claims 5 - 7, characterized in, that between steps c. and d. the film tube is transported vertically, to an extent that at least the bottom of the packaging item expands.
9. Process according to anyone of claims 5 - 8, characterized in, that step e. is carried out prior to step d so that wrinkles (11 ) are formed in the film tube (1 ).
10. Process according to anyone of claims 5 - 9 , characterized in, that between steps b. and c, the film tube and the portion (4) are lowered by a small extent.
11. Process according to anyone of claims 5 - 10, characterized in, that step c is accomplished by cross sealing means (9).
12. Process according to anyone of claims 5 - 11, characterized in, that step c is accomplished by fixing means (12).
13. Process according to anyone of the preceding claims, characterized in, that the film tube (1) is made from a flat film web with a longitudinal seal.
14. Process according to anyone of the preceding claims, characterized in, that two packaging items are produced simultaneously.
15. Process according to anyone of the preceding claims, characterized in, that the goods have a low and/or changing packaging density.
16. Process according to anyone of the preceding claims, characterized in, that the packaging goods is salad.
PCT/EP2005/002384 2004-03-05 2005-03-07 Process for producing packaging items for light goods WO2005095213A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/591,631 US20080034711A1 (en) 2004-03-05 2005-03-07 Process for Producing Packaging Items for Light Goods

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP04005354 2004-03-05
EP04005354.8 2004-03-05
EP04006666A EP1571085A1 (en) 2004-03-05 2004-03-19 Process for producing packaging items for light goods
EP04006666.4 2004-03-19

Publications (1)

Publication Number Publication Date
WO2005095213A1 true WO2005095213A1 (en) 2005-10-13

Family

ID=34751693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/002384 WO2005095213A1 (en) 2004-03-05 2005-03-07 Process for producing packaging items for light goods

Country Status (3)

Country Link
US (1) US20080034711A1 (en)
EP (1) EP1571085A1 (en)
WO (1) WO2005095213A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1278562A (en) * 1970-01-27 1972-06-21 Woodman Company Inc Improvements in or relating to methods of and apparatus for settling a product in a package formed from a continuous tube
US5540035A (en) * 1994-12-07 1996-07-30 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with synchronized product clamp
EP0974518A1 (en) * 1998-07-23 2000-01-26 Ishida Co., Ltd. Packaging machine and method
EP1026078A2 (en) * 1999-02-03 2000-08-09 Ishida Co., Ltd. Method of forming, filling, and sealing bags continuously and an apparatus for forming, filling and sealing bags

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9626785D0 (en) * 1996-12-23 1997-02-12 Ishida Seisakusho Form-fill-seal packaging machine
US6041579A (en) * 1997-05-12 2000-03-28 Beach, Llc Bag forming machine with straw inserting mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1278562A (en) * 1970-01-27 1972-06-21 Woodman Company Inc Improvements in or relating to methods of and apparatus for settling a product in a package formed from a continuous tube
US5540035A (en) * 1994-12-07 1996-07-30 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with synchronized product clamp
EP0974518A1 (en) * 1998-07-23 2000-01-26 Ishida Co., Ltd. Packaging machine and method
EP1026078A2 (en) * 1999-02-03 2000-08-09 Ishida Co., Ltd. Method of forming, filling, and sealing bags continuously and an apparatus for forming, filling and sealing bags

Also Published As

Publication number Publication date
EP1571085A1 (en) 2005-09-07
US20080034711A1 (en) 2008-02-14

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