EP4112483B1 - Dispositif pour machines d'emballage - Google Patents

Dispositif pour machines d'emballage Download PDF

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Publication number
EP4112483B1
EP4112483B1 EP22172565.8A EP22172565A EP4112483B1 EP 4112483 B1 EP4112483 B1 EP 4112483B1 EP 22172565 A EP22172565 A EP 22172565A EP 4112483 B1 EP4112483 B1 EP 4112483B1
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EP
European Patent Office
Prior art keywords
collar
region
wall
extension
vertex
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.)
Active
Application number
EP22172565.8A
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German (de)
English (en)
Other versions
EP4112483A1 (fr
EP4112483C0 (fr
Inventor
Marco ANACORETO
Massimo LANDO
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.)
Landopack Srl
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Landopack Srl
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Publication date
Application filed by Landopack Srl filed Critical Landopack Srl
Publication of EP4112483A1 publication Critical patent/EP4112483A1/fr
Application granted granted Critical
Publication of EP4112483B1 publication Critical patent/EP4112483B1/fr
Publication of EP4112483C0 publication Critical patent/EP4112483C0/fr
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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
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/34—Packaging other rod-shaped articles, e.g. sausages, macaroni, spaghetti, drinking straws, welding electrodes

Definitions

  • the present invention relates to a device for packaging machines, particularly for machines for the continuous packaging of products with a predominantly longitudinal extension like spaghetti, breadsticks, pencils or the like.
  • machines that comprise a device with a flat region that ends with a collar with a substantially vertical (or horizontal) axis of extension and which is inclined with respect to the plane of arrangement of the flat region.
  • the collar has a slit, along the wall that lies opposite to the flat region, which is parallel to the axis of extension of the collar.
  • a hopper Inside the collar there is a hopper with an axis of extension that substantially coincides with the axis of extension of the collar.
  • a sheet of paper-like and/or polymeric material is unwound from a spool and slides over the substantially flat region of the device and is conveyed inside the collar and shaped around the hopper, adhering to the internal wall of the collar, making the two opposing longitudinal flaps of the sheet come together inside the slit.
  • the sheet is heat-sealed in a longitudinal direction at the two opposing facing flaps, creating a tubular package, and is subjected to a first cut and simultaneous heat-sealing, in a transverse direction, at the exit from the collar, creating a bag.
  • the products are then directed, through the hopper, into the bag being created.
  • the bag containing the products then slides through the collar and is sealed with a second cut and simultaneous heat-sealing, in a transverse direction, opposite to the previous transverse direction, again at the exit from the collar.
  • the collar has an internal profile that is normally rectangular with sharp corners, rectangular with rounded corners, circular or slot-shaped, with some straight sections and along its axis of extension it has first a substantially tubular portion, and then a semi-tubular portion.
  • the device is obtained by bending and welding sheet metal.
  • the production process begins with two metal sheets, a first metal sheet for making the substantially flat region and a second metal sheet rolled in a closed shape, via successive folds, to create the profile of the collar.
  • the internal profile of the collar is the origin of at least two critical points for the sliding of the sheet (particularly if the sheet is made of paper) at the connecting points between the various folds of the sheet metal, at the interface between the tubular portion and the semi-tubular portion, at least at the ends of the semi-tubular shape, which causes the onset of unwanted wrinkles and creases on the sheet itself, as well as tears or rips, in addition to producing visually unpleasant longitudinal fold lines on the sheet.
  • Devices with a collar, used for packaging machines are also known from e.g. DE 20320160 U .
  • the aim of the present invention is to provide a device for packaging machines that is capable of improving the known art in one or more of the above mentioned aspects.
  • an object of the invention is to provide a device for packaging machines, in which the collar has no critical points for the sliding of the sheet inside it, and which makes it possible to guide the sheet evenly, thus increasing the speed of packaging with respect to similar conventional devices.
  • Another object of the invention is to provide a device for packaging machines that enables a method for its production that is easier and less laborious with respect to similar conventional devices and which does not entail the need for welds.
  • a further object of the present invention is to overcome the drawbacks of the background art in a manner that is alternative to any existing solutions.
  • Another object of the invention is to provide a device for packaging machines that is highly reliable, easy to implement and of low cost.
  • a device for packaging machines which comprises a substantially flat region that ends with a collar, the plane of arrangement of said region being inclined with respect to the axis of extension of said collar, said collar having a slit along its wall that lies opposite to said region, parallel to the axis of extension thereof, said device being characterized in that said collar has an internal profile with a continuous curve with at least four changes of curvature with respect to circularity.
  • the device for packaging machines according to the invention is generally designated by the reference numeral 10.
  • Such device 10 is preferably used in a machine for continuous packaging, not shown in the figures, in which the products are moved horizontally.
  • the invention is used to provide packages made of paper.
  • the device 10 comprises a substantially flat region 11 that ends with a collar 12.
  • the collar 12 has a slit 13 along the wall 17 that lies opposite to the region 11, which is parallel to the axis of extension of the collar.
  • One of the peculiarities of the invention consists in that the device 10 is monolithic.
  • the entire device 10 is made of metallic material, using 3D printing and/or stock-removal machining.
  • the device 10 is obtained, for example, with the use of a machine with computer numerical control (CNC).
  • CNC computer numerical control
  • such a device 10 takes a solid form that is homogeneous and mass-reproducible using 3D printing or using stock-removal machining with CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing) methods.
  • CAD/CAM Computer-Aided Design/Computer-Aided Manufacturing
  • the collar 12 has an internal profile with a continuous curve, therefore without straight sections and/or sharp corners, in which there are at least four changes of curvature with respect to circularity.
  • the internal profile of the collar 12 is, for example, elliptical and/or oval and/or defined by four blended circular arcs.
  • the oval is composed of four circular arcs in succession, while the ellipse has infinite changes of curvature, it being the geometric place of points of the plane where the sum of the distances from the two focal points remains constant.
  • the region 11 is shaped like an isosceles triangle with the vertex 14, which is comprised between the congruent sides 15a, 15b of the triangle, coinciding with the central point of the wall 16 of the collar 12 that is proximate to the region 11, on the inlet rim 19 of the collar 12.
  • the region 11 has an angle K between the congruent sides 15a, 15b, which is comprised between 60° and 70°.
  • the region 11 is inclined with respect to the wall 16 of the collar 12 that is proximate thereto, at an angle W comprised between 50° and 60°.
  • the device 10 comprises two wings 18a, 18b, which are mirror-symmetrical with respect to the plane of symmetry of the region 11 that passes through the vertex 14.
  • These wings 18a, 18b extend starting from the sides 15a, 15b, and have a curved profile that defines the inlet rim 19 of the collar 12, for the packaging sheet.
  • This rim 19 has a substantially teardrop-shaped contour with the vertex at the slit 13, which is arranged on a horizontal plane that is parallel to the horizontal plane of arrangement of the vertex 14 of the region 11.
  • the device 10 comprises two tabs 20a, 20b, which extend parallel to the axis of extension of the collar 12 and define substantially the wall 17 of the collar 12 that lies opposite the region 11.
  • the slit 13 extends in the interface region between the two tabs 20a, 20b, and passes through the thickness of the wall 17.
  • the tabs 20a, 20b have a surface directed toward the axis of extension of the collar 12 with a curved profile.
  • the tabs 20a, 20b extend starting from a plane that is perpendicular to the axis of extension of the collar 12 and is arranged proximate to/at the end of the wall 16 of the collar 12 that is proximate to the region 11.
  • the wall 16 of the collar 12, which lies proximate to the region 11, and the wall 17 of the collar 12, which lies opposite the region 11, extend on different levels and are not parallel or are only partially parallel.
  • the device 10 can comprise a hopper, not shown in the figures, which is inserted in the collar 12 for introducing the products into the shaped wrapping, and which is also provided by 3D printing.
  • the use of the device 10 is the following.
  • a sheet of paper-like material is unwound from a spool, neither of which are shown in the figures, slides over the region 11 of the device 10 and is conveyed inside the collar 12 and shaped around the hopper, also not shown, adhering to the internal wall of the collar 12, along its inlet rim 19, and making the two opposing longitudinal flaps of the sheet come together inside the slit 13.
  • the sheet is heat-sealed in a longitudinal direction at the two opposing facing flaps, creating a tubular package, and is subjected to a first cut and simultaneous heat-sealing, in a transverse direction, at the exit from the collar 12, creating a bag.
  • the products are then directed, through the hopper, into the bag that has just been created.
  • the bag containing the products then slides through the collar 12 and is sealed with a second cut and simultaneous heat-sealing, in a transverse direction, opposite to the previous transverse direction, at the exit from the collar 12.
  • the invention fully achieves the intended aim and objects by providing a device for packaging machines that has no critical points for the sliding of the sheet inside the profile of the collar, and which makes it possible to guide the sheet evenly, thus increasing the speed of packaging with respect to similar conventional devices.
  • a device for packaging machines that enables a method for its production that is easier and less laborious with respect to similar conventional devices and which does not entail the need for welds.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (12)

  1. Dispositif (10) pour machines à emballer, comprenant une région substantiellement plate (11) qui se termine par un collier (12), le plan d'agencement de ladite région (11) étant incliné par rapport à l'axe d'extension dudit collier (12), ledit collier (12) comportant une fente (13) le long de sa paroi (17) qui se trouve à l'opposé de ladite région (11), parallèle à l'axe d'extension de celle-ci, ledit dispositif (10) étant caractérisé en ce que ledit collier (12) a un profil intérieur formant une courbe continue ayant au moins quatre changements de courbure par rapport à la circularité, ledit dispositif (10) comprenant en outre deux pattes (20a, 20b) qui s'étendent parallèlement à l'axe d'extension dudit collier (12) et qui définissent substantiellement la paroi (17) dudit collier (12) qui se trouve à l'opposé de ladite région (11), ladite fente (13) s'étendant dans la région d'interface entre lesdites deux pattes (20a, 20b), ladite fente (13) traversant l'épaisseur de ladite paroi (17) dudit collier (12) qui se trouve à l'opposé de ladite région (11).
  2. Dispositif (10) selon la revendication 1, caractérisé en ce que ledit profil intérieur dudit collier (12) est elliptique.
  3. Dispositif (10) selon la revendication 1, caractérisé en ce que ledit profil intérieur dudit collier (12) est ovale.
  4. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il est monolithique.
  5. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il est fait d'un matériau métallique et est fourni par impression 3D et/ou par usinage à enlèvement de matière.
  6. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ladite région (11) a la forme d'un triangle isocèle dans lequel le sommet (14), qui est compris entre les côtés congruents (15a, 15b) dudit triangle, coïncide avec le point central de la paroi (16) dudit collier (12) qui est proche de ladite région (11), ledit sommet (14) dudit triangle étant sur un rebord intérieur (19) dudit collier (12).
  7. Dispositif (10) selon la revendication 6, caractérisé en ce que ladite région (11) :
    - a un angle (K) entre lesdits côtés congruents (15a, 15b) qui est compris entre 60° et 70°,
    - est incliné par rapport à ladite paroi (16) dudit collier (12) qui est proche de ladite région (11), d'un angle (W) compris entre 50° et 60°.
  8. Dispositif (10) selon l'une des revendications 6 et 7, ou les deux, caractérisé en ce qu'il comprend deux ailes (18a, 18b) qui sont symétriques par rapport au plan de symétrie de ladite région (11) qui passe par ledit sommet (14) dudit triangle, lesdites ailes (18a, 18b) s'étendant depuis lesdits côtés (15a, 15b) et ayant un profil courbé qui définit ledit rebord intérieur (19) dudit collier (12).
  9. Dispositif (10) selon la revendication 6, caractérisé en ce que ledit rebord intérieur (19) dudit collier (12) a un contour substantiellement en forme de goutte d'eau dont le sommet est au niveau de ladite fente (13), ledit sommet de ladite forme de goutte d'eau étant placé sur un plan horizontal qui est parallèle au plan horizontal d'agencement dudit sommet (14) de ladite région (11).
  10. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites pattes (20a, 20b) ont une surface orientée vers l'axe d'extension dudit collier (12) avec un profil courbé.
  11. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que lesdites pattes (20a, 20b) s'étendent depuis un plan qui est perpendiculaire à l'axe d'extension dudit collier (12) et est placé à proximité de/à l'extrémité de ladite paroi (16) dudit collier (12) qui est à proximité de ladite région (11).
  12. Dispositif (10) selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il comprend une trémie insérée dans ledit collier (12) qui est fournie par impression 3D.
EP22172565.8A 2021-06-29 2022-05-10 Dispositif pour machines d'emballage Active EP4112483B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202100016976 2021-06-29

Publications (3)

Publication Number Publication Date
EP4112483A1 EP4112483A1 (fr) 2023-01-04
EP4112483B1 true EP4112483B1 (fr) 2024-11-06
EP4112483C0 EP4112483C0 (fr) 2024-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22172565.8A Active EP4112483B1 (fr) 2021-06-29 2022-05-10 Dispositif pour machines d'emballage

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EP (1) EP4112483B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024124203A1 (de) * 2024-08-23 2026-02-26 Gerhard Schubert Gesellschaft mit beschränkter Haftung Formschulter zum Formen eines Schlauchs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2605488A1 (de) * 1976-02-12 1977-08-18 Bosch Gmbh Robert Verfahren zum herstellen einer formschulter fuer eine schlauchbeutelverpackungsmaschine sowie nach dem verfahren hergestellte formschulter
DE2721550A1 (de) * 1977-05-13 1978-11-16 Abg Gmbh Beutelpackmaschine
US5215380A (en) * 1990-10-19 1993-06-01 Reynolds Consumer Products, Inc. Reclosable package with tear strip
US6428457B1 (en) * 1995-09-29 2002-08-06 Ishida Co., Ltd. Former for a bag maker
DE10032551B4 (de) * 2000-06-28 2004-06-03 Drut, Henry, Dr.-Ing. Formschulter und Vorrichtung zur Herstellung von längsgeformten Bahnen
DE20320160U1 (de) * 2003-12-29 2004-07-15 Toss Gmbh & Co. Kg Formschulter, insbesondere für Schlauchbeutelmaschinen
IT1395722B1 (it) * 2009-09-30 2012-10-19 Rossi Macchina impacchettatrice automatica
US9102426B2 (en) * 2012-01-06 2015-08-11 Frito-Lay North America, Inc. Form-fill-seal machine including a filling tube with an elliptical cross-section
JP2013166580A (ja) * 2012-02-16 2013-08-29 Tokyo Institute Of Technology 製袋充填包装装置

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Publication number Publication date
EP4112483A1 (fr) 2023-01-04
EP4112483C0 (fr) 2024-11-06

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