EP2226251A1 - Forming pipe with sleeve - Google Patents

Forming pipe with sleeve Download PDF

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Publication number
EP2226251A1
EP2226251A1 EP20100154990 EP10154990A EP2226251A1 EP 2226251 A1 EP2226251 A1 EP 2226251A1 EP 20100154990 EP20100154990 EP 20100154990 EP 10154990 A EP10154990 A EP 10154990A EP 2226251 A1 EP2226251 A1 EP 2226251A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
pliers
pipe
product
film
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20100154990
Other languages
German (de)
French (fr)
Other versions
EP2226251B1 (en )
Inventor
Massimo Piazzaroli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altopack SpA
Original Assignee
Altopack SpA
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

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00Nozzles, funnels, or guides for introducing articles or materials into containers or wrappers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing 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
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing 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
    • B65B9/213Enclosing 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing 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
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing 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
    • B65B9/2007Means for stripping or squeezing filled tubes prior to sealing to remove air or products from sealing area

Abstract

A device for forming, filling and closing food-product containers (4) is disclosed, comprising a forming pipe (1) on which is slidably wound a film of plastics (3) suitable for being closed by welding pliers (12) under the outlet mouth (30) of the pipe (1) to define a resting base for the product (4) in free fall inside the film of plastics (3). Said device further provides a deformable sleeve (6) that is made of rubber material that is mounted at the outlet mouth (8) of the pipe (1) and is suitable for being closed below by the pliers (12) such as to soften the blow of the product (4) in free fall against the resting base defined by the closure of the pliers (12). (Fig.3).

Description

  • The present invention relates to a forming pipe with sleeve.
  • For packaging food products, machines are known that provide a steel vertical forming pipe around which a vertically movable film of plastics is wound that is intended to contain the food product once it has been formed.
  • The film of plastics is unrolled from a roller next to the forming pipe and via known winding systems with sheets of sheet metal, envelops the forming pipe.
  • The food product is weighed and is then poured into the forming pipe, where it drops by gravity onto a bottom, below the lower end of the pipe, determined by the closure of the film of plastics by the welding pliers.
  • After the envisaged quantity of product has fallen the pliers open again and the film of plastics loaded with the product descends by a distance that is such as to enable the pliers to close again with corresponding welding and cutting to form a closed container made of plastics that houses the food product.
  • The impact of the falling product with the welded closed bottom frequently causes the partial breakage of the product, especially in the case of very fragile products such as snack products with a triangular shape: when the tips hit the pliers at speed they snap; the film of plastics is not able to soften the impact.
  • During the impact the corners of the product behave like small blades that create microholes on the film and consequently cause the package to be rejected.
  • The object of the present invention is to create a device for forming, filling and closing food-product containers in free fall without the aforementioned problem of breakage of the products and microholes of the film of plastics.
  • According to the invention, this object is achieved with a device for forming, filling and closing food-product containers, comprising a forming pipe on which is slidably wound a film of plastics suitable for being closed by welding pliers under the outlet mouth of the pipe to define a resting base for the product in free fall inside the film of plastics, characterised in that there is further provided a deformable sleeve that is made of rubber material mounted at the outlet mouth of the pipe and is suitable for being closed below by the pliers such as to soften the blow of the product in free fall against the resting base defined by the closure of the pliers.
  • These and other features of the present invention will be made clearer by the following detailed description of a practical embodiment thereof illustrated by way of non-limiting example in the attached drawings, in which:
    • figure 1 shows a perspective view of a forming pipe without sleeve;
    • figure 2 shows a perspective view of a forming pipe with sleeve and open pliers;
    • figure 3 shows a perspective view of a forming pipe with sleeve closed by the pliers.
  • In the figures there is shown a steel forming pipe 1 fixed to a forming machine (not shown) by fixing means 2, and welding and cutting pliers 12.
  • On the pipe 1 the film of tubular plastics 3 slides vertically (supplied by known means that is not shown with the help of a collar 50) that is suitable for containing, once it has been formed, food products 4 in free vertical fall inside the pipe 1 after weighing. A hopper 5 facilitates loading of the product 4.
  • In figure 2 a sleeve 6 made of silicone rubber (i.e. bancolan) is visible that is to be mounted at the outlet mouth 8 of the pipe 1.
  • Said sleeve 6 is constituted by a continuous upper anular portion 7 for attaching to the pipe 1 and by a lower portion 9 with great deformability to a plurality of vertical cuts 10 suitable for defining a plurality of vertical strips 11. This constructional solution enables the shape of the lower part 9 to be altered by accentuating significantly the deformability of the rubber material that is in itself already deformable.
  • The anular portion 7 envelops the pipe 1 externally at the outlet mouth 8, possibly with the help of a fixing clip or the like; the film 3 slides outside the sleeve 6.
  • The pliers 12 are positioned such that when they close (figure 3) they tighten the lower end 13 of the sleeve slightly above the welding and cutting device 20 of the pliers 12.
  • The film 3 is thus closed by the pliers in the welding and cutting zone without the interposition of the sleeve 6; in addition, the closed end 13 (figure 3) of the sleeve 6 acts as a 'cushion' for the products 4 in free fall.
  • Advantageously, if the food product is fragile, as frequently occurs (for example with triangular crisps) the rubber sleeve 6 softens the fall by preventing direct impact (mediated only by the film) of the product with the pliers 12, which as is known are made of hard metal material. Obviously, this causes fewer breakages of the falling product and reduced microholes in the packaging.
  • The technical solution according to the present invention results in a significant reduction in production rejects (packages with cuts that are not tolerable for hygienic reasons); with forming devices that are currently on the market 3-4% of total production is rejected, whereas with the addition of the sleeve 6 rejects are less than 1% if all other work conditions are the same.

Claims (3)

  1. Device for forming, filling and closing food-product containers (4), comprising a forming pipe (1) on which is slidably wound a film of plastics (3) that is suitable for being closed by welding pliers (12) under the outlet mouth (30) of the pipe (1) to define a resting base for the product (4) in free fall inside the film of plastics (3), characterised in that there is further provided a deformable sleeve (6) that is made of rubber, is mounted at the outlet mouth (8) of the pipe (1) and is suitable for being closed below by the pliers (12) such as to soften the blow of the product (4) in free fall against the resting base defined by the closure of the pliers (12).
  2. Device according to claim 1, characterised in that said sleeve (6) comprises an upper ring (7) attached to the outlet mouth (8) of the pipe (1) and a lower portion (9) consisting of a plurality of adjacent vertical strips (11) determined by a plurality of vertical cuts (10), that are deformable by means of the pliers (12) for forming a resting base for the product (4) in free fall.
  3. Device according to claim 1 or 2, characterised in that the pliers (12) are positioned such that in a closed position they clamp the lower end (13) of the sleeve (6) above the welding and cutting means of the pliers (12) that are suitable for interacting only with the film of plastics (3).
EP20100154990 2009-03-03 2010-03-01 Forming pipe with sleeve Active EP2226251B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI20090063 2009-03-03

Publications (2)

Publication Number Publication Date
EP2226251A1 true true EP2226251A1 (en) 2010-09-08
EP2226251B1 EP2226251B1 (en) 2012-05-16

Family

ID=42320342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100154990 Active EP2226251B1 (en) 2009-03-03 2010-03-01 Forming pipe with sleeve

Country Status (1)

Country Link
EP (1) EP2226251B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029428A (en) * 1992-06-29 2000-02-29 Pacmac, Inc. Convertible form, fill and seal packaging machine
US6119438A (en) * 1995-06-30 2000-09-19 Kliklok Corporation Transitional product flow and adaptive control
WO2006038065A2 (en) * 2004-10-05 2006-04-13 Aroma System Srl Device for controlling the descent of delicate products inside the forming tube of a vertical packaging machine
US20070127853A1 (en) * 2005-01-14 2007-06-07 Frito-Lay North America, Inc. Method for Making a Multi-Compartment Microwavable Package Having a Permeable Wall Between Compartments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029428A (en) * 1992-06-29 2000-02-29 Pacmac, Inc. Convertible form, fill and seal packaging machine
US6119438A (en) * 1995-06-30 2000-09-19 Kliklok Corporation Transitional product flow and adaptive control
WO2006038065A2 (en) * 2004-10-05 2006-04-13 Aroma System Srl Device for controlling the descent of delicate products inside the forming tube of a vertical packaging machine
US20070127853A1 (en) * 2005-01-14 2007-06-07 Frito-Lay North America, Inc. Method for Making a Multi-Compartment Microwavable Package Having a Permeable Wall Between Compartments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date Type
EP2226251B1 (en) 2012-05-16 grant

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