WO2022091155A1 - Unité de coupe pour fabriquer des conditionnements monodoses - Google Patents

Unité de coupe pour fabriquer des conditionnements monodoses Download PDF

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Publication number
WO2022091155A1
WO2022091155A1 PCT/IT2021/050349 IT2021050349W WO2022091155A1 WO 2022091155 A1 WO2022091155 A1 WO 2022091155A1 IT 2021050349 W IT2021050349 W IT 2021050349W WO 2022091155 A1 WO2022091155 A1 WO 2022091155A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
roller
cutting
plastic material
package
Prior art date
Application number
PCT/IT2021/050349
Other languages
English (en)
Inventor
Luca Amato
Nicolas PINNA
Fortunato Antonio BURZÌ
Original Assignee
V-Shapes S.R.L.
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 V-Shapes S.R.L. filed Critical V-Shapes S.R.L.
Publication of WO2022091155A1 publication Critical patent/WO2022091155A1/fr

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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B2009/047—Rotary pocket formers

Definitions

  • This invention relates to a cutting unit for making single-dose packages, in particular for an apparatus for making sealed single-dose packages.
  • Sealed single-dose packages comprise a sheet of semi-rigid plastic material and a sheet of flexible plastic material, which is superposed on and sealed to the sheet of semi-rigid plastic material to form a sealed pocket which contains a dose of a fluid product.
  • the sheet of semi-rigid plastic material centrally has a weakened zone which guides controlled breaking of the sheet of semi-rigid plastic material in such a way as to cause the formation of a product outlet opening through the sheet of semi-rigid plastic material.
  • a user in use to open the sealed package a user must grasp the sealed package with the fingers of one hand and bend the sealed package into a “V” shape until the sheet of semi-rigid plastic material breaks at the weakened zone.
  • an apparatus which comprises a reel for feeding a web of semi-rigid material and a reel for feeding a web of flexible material, an incision unit for making an incision in the sheet of semi-rigid plastic material, and a unit for forming the package.
  • the web of semi-rigid plastic material and the web of flexible plastic material are superposed and then sealed in a longitudinal sealing station to form a tube suitable for containing the product.
  • a dosing device is positioned at the longitudinal sealing station.
  • a transversal sealing station Positioned downstream of the longitudinal sealing station there is a transversal sealing station, which makes a transversal seal to close the pocket of each sealed single-dose package.
  • a cutting station positioned downstream of the transversal sealing station there is a cutting station, in which the two webs are cut transversally to separate the sealed single-dose packages one after another.
  • the cutting station comprises a block, vertically movable by means of an electric motor, having on the lower surface one or more reliefs corresponding to the profile of the package to be cut.
  • the sealed and filled webs pass under the block along a horizontal line, moving onto a supporting plate against which the block makes contact.
  • the package which is detached from the rest of the web continues towards a pick-up station whilst the waste is collected near the cutting station.
  • the cutting station of the known type has several disadvantages.
  • the movement of the block must be synchronised with passage of the web with the filled packages, in such a way as to cut them precisely along the sealed edges. This involves a reduction in the speed of the apparatus.
  • the block is heavy and difficult to assemble and disassemble. It must be completely removed from the apparatus in such a way as to allow cleaning of all of the lower surface and all of the part of the cutting station affected by the product which came out. It must also be removed when the size of the package to be made must be changed.
  • the aim of this invention is to provide a cutting unit which improves the operation of the apparatus and is easy to maintain.
  • a cutting unit having the features defined in claim 1.
  • Figure 1 illustrates a perspective top view of a sealed single-dose package
  • Figure 2 illustrates a perspective view of an apparatus for making a sealed single-dose package in an embodiment of this invention
  • Figure 3 illustrates an embodiment of the cutting unit of the apparatus of Figure 2
  • Figure 4 illustrates a front view of the cutting unit of Figure 3
  • Figure 5 illustrates an embodiment of a cutting roller.
  • Figure 6 illustrates a preferred embodiment of a cutting roller in a view which shows the shape of the package to be cut
  • Figure 7 illustrates the cutting roller of Figure 6 according to the crosssection VII - VII.
  • the numeral 1 denotes in its entirety a sealed single-dose package, in particular of the break-open type.
  • the sealed single-dose package 1 comprises a sheet 2 of semi-rigid plastic material and a sheet 3 of flexible plastic material, which is superposed on and sealed to the sheet 2 of semi-rigid plastic material to form (between the two sheets 2 and 3) a sealed pocket 4 which contains a dose of a product 5.
  • the sheet 2 of semi-rigid plastic material has a weakened zone, which guides controlled breaking of the sheet 2 of semi-rigid plastic material in such a way as to cause the formation of a product 5 outlet opening through the sheet 2 of semi-rigid plastic material.
  • a user in use to open the sealed single-dose package 1 a user must grasp the sealed single-dose package 1 with the fingers of one hand and bend the sealed single-dose package 1 into a “V” shape until the sheet 2 of semi-rigid plastic material breaks at the weakened zone.
  • the product 5 can be made to come out of the sealed single-dose package 1 in a simple and hygienic way.
  • the weakened zone preferably comprises at least one non-through incision (that is to say, which does not pass completely through the sheet 2 of semi-rigid plastic material) which is made in a surface of the sheet 2 of semi-rigid plastic material.
  • the numeral 7 denotes an apparatus for making a sealed single-dose package 1, in particular of the break-open type, in an embodiment of this invention.
  • the apparatus 7 comprises a first feed unit 8 for feeding a first strip 9 of semirigid plastic material and a second feed unit 10 for feeding a second strip 11 of flexible plastic material.
  • the apparatus 7 preferably comprises an incision unit 12 for making a deformation in the strip 9 of semi-rigid material.
  • the apparatus 7 comprises a forming unit 13 in which at least one portion of the strip 9 of semirigid material is superposed on and joined to a corresponding portion of the strip 11 of flexible material to form and fill the pocket 4.
  • the strip 9 of semi-rigid plastic material picked up from the feed unit 8, for example from a reel 14, passes into the incision unit 12, in which the strip 9 of semi-rigid plastic material is deformed or shaped.
  • the incision unit 12 advantageously comprises a first plate and a second plate opposite the first plate, wherein the second plate comprises at least one incision tool.
  • the second plate is shifted towards the first plate in such a way that one end of the incision tool moves a preset distance towards the first supporting plate to make the deformation in the strip 9 of semi-rigid material. In this way the deformation or shaping is made with a constant depth.
  • the strip 9 of semi-rigid material passes into the forming unit 13, where it is joined to the strip 11 of flexible material arriving from the second feed unit 10, for example from a reel 18.
  • the forming unit 13 comprises three sealing stations 19, 20, 21 which are positioned one after another along a vertical line.
  • the first station 19 is positioned in the upper part of the forming unit 13 and has at least one first pair of rollers 190 with horizontal axis.
  • the first pair of rollers 190 comprises at least one first hot roller and at least one first rubber-coated counter-roller.
  • the first pair of rollers 190 allows the vertical seals to be made on superposed strips, in particular on the strip of semi-rigid plastic material 9 superposed on the strip of flexible plastic material 11, in such a way as to join them.
  • the first hot roller has at least one groove corresponding to the size of the package to be made.
  • the first rubber- coated counter-roller has at least one corresponding groove.
  • the hot roller and the rubber-coated roller have a plurality of grooves.
  • the first station 19 advantageously has at least two pair of rollers with horizontal axis. Mounted on a first horizontal axis there are two hot rollers, separated from each other by a distance corresponding to the size of the package.
  • the distance between the two hot rollers is adjustable, in such a way as to be able to adapt the machine to make packages of different sizes.
  • two rubber-coated counter-rollers Mounted on a second horizontal axis there are two rubber-coated counter-rollers, also separated from each other by a distance corresponding to the size of the package.
  • the distance between the two rubber-coated rollers is adjustable.
  • the second station 20 is positioned below the first station 19.
  • the second station 20 has a horizontal rotary sealing device 200.
  • the horizontal rotary sealing device 200 has a pair of rollers with horizontal axis comprising a first rubber-coated roller and a second roller with a projection which extends along a line parallel to the axis of the roller.
  • the projection if preferably bar-shaped.
  • the horizontal rotary sealing device makes a transversal seal in the continuous strip 911 of material created by superposing the first strip 9 of semi-rigid plastic material and the second strip 11 of flexible plastic material.
  • the horizontal rotary sealing device closes the filled packages and at the same time during the rotation creates the closed base of the packages which are still to be filled.
  • the third station 21 is positioned below the second station.
  • the third station 21 has at least one pair of cold rollers 210 with horizontal axis.
  • the pair of cold rollers 210 comprises at least one first cold roller and at least one respective counter-roller.
  • the first roller has at least one groove corresponding to the size of the package to be made.
  • the counter-roller has at least one corresponding groove.
  • the first cold roller and the respective counter-roller have a plurality of grooves.
  • the third station 21 advantageously has at least two pairs of rollers 210 with horizontal axis. Mounted on a first horizontal axis there are two cold rollers, separated from each other by a distance corresponding to the size of the package.
  • the distance between the two cold rollers is adjustable, in such a way as to be able to adapt the machine to make packages of different sizes.
  • each other mounted on a second horizontal axis there are two respective counter-rollers, also separated from each other by a distance corresponding to the size of the package.
  • the distance between the two counter-rollers is adjustable.
  • the rollers 210 of the third station 21 keep under tension the strip 911 obtained from the superposed and sealed strips 9, 11 and convey it towards a subsequent cutting unit 15.
  • the forming unit 13 comprises a filling station.
  • the filling station comprises a tank containing a product; a product supplying device; at least one feed duct having a first end connected to the tank and a second end connected to the supplying device; and a control unit for controlling the dosing time and pressure connected to the tank and to the supplying device.
  • the supplying device is preferably a dosing valve or syringe.
  • the tank is pressurised.
  • the vertical seals of the package are made while the superposed strips descend. Then the horizontal seal is made which creates the base of the package by means of the bar joined to the roller of the second station, then the package is filled. The rotation of the roller of the second station then brings the bar back onto the superposed strips, closing the package and with the same movement making the base for the next package.
  • the apparatus 7 comprises a cutting unit 15 after the forming unit 13, in which the individual packages are separated from the sealed excess material (waste).
  • the cutting unit 15 comprises at least one cutting roller 151 provided with at least one shaped relief 152 for determining the shape of the package; and at least one corresponding contact element 153, for separating a single-dose package from a continuous strip 911.
  • the contact element 153 comprises at least one counter-roller.
  • the cutting roller 151 and the counter-roller 153 have substantially horizontal axes.
  • the shaped relief 152 has the shape of the package to be made.
  • the profile of the shaped relief 152 comprises a substantially closed line.
  • the line may be broken, to make packages with polygonal shape, or may have at least one curve stretch, for example to make packages which are circular or oval or with rounded edges.
  • the rake angle of the shaped relief 152 is 0°, that is to say, the angle of inclination of the shaped relief 152 relative to the strip 911 to be cut in order to separate an individual package is 0°.
  • the shaped relief 152 has a cross-section having one side which forms an angle of approximately 90° with the surface of the roller. The strip is cut and the package is separated at this side.
  • the shaped relief 152 is “V”-shaped.
  • the “V” shape allows the shaped relief which makes the cut to be made stiffer.
  • the cross-section 152 of the shaped relief is substantially triangular.
  • the rake angle is preferably 0°, that is to say, the angle formed between the surface of the roller and one side of the triangle is approximately 90°. The strip is cut and the package is separated at this side.
  • Figure 6 illustrates an embodiment in which the cutting roller 151 has a shaped relief 152 for making a package with rectangular shape.
  • the cross-section of the shaped relief 152 is substantially triangular.
  • the angle formed between the surface of the roller 154 and the inner side 155 of the triangle is approximately 90°. The strip is cut and the package is separated at the inner side 155.
  • the apparatus 7 comprises a control unit for synchronisation of the sealing rollers, in particular of the rotary sealing device 200, with the cutting roller 151.
  • the cutting roller 151 has a plurality of reliefs
  • the cutting unit 15 advantageously comprises at least one pair of pulling rollers 160 for the web, which are positioned downstream of the cutting roller 151.
  • the pulling rollers 160 pick up the portion of sealed strip 911 from which the packages have already been separated.
  • the cutting unit 151 comprises a return roller 170 positioned downstream of the cutting roller 151 for changing the direction of the strip 911 whilst keeping it under tension.
  • the return roller 170 is preferably positioned below the cutting roller 151 and changes the direction to a substantially horizontal one.
  • control unit is suitable for adjusting the speed of rotation of the cutting roller relative to the forward movement speed of the strip 911 in such a way as to be able to make packages with different dimensions using the same shaped relief.
  • control unit is suitable for increasing the speed of rotation of the roller to make packages having a larger dimension along a line substantially perpendicular to the axis of the roller or for reducing the speed of rotation of the roller to make packages having a smaller dimension along a line substantially perpendicular to the axis of the roller.
  • the control unit is suitable for increasing the speed of rotation of the roller to make packages having a longer side or for reducing the speed of rotation of the roller to make packages having a shorter side.
  • the individual packages are advantageously sent into a container positioned below the cutting unit 15.
  • the cutting unit according to this invention allows easier substitution of the cutting element. Synchronisation is simpler since it only relates to the movement of the cutting roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Bag Frames (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

Une unité de coupe destinée à la fabrication de conditionnements monodoses scellés (1), en particulier destinée à un appareil de fabrication de conditionnements monodoses scellés, le conditionnement (1) comprenant : une première feuille (2) en matière plastique semi-rigide ; et une seconde feuille (3) en matière plastique souple superposée sur la première feuille (2) et scellée sur cette dernière pour former une poche scellée (4) qui contient une dose d'un produit (5), l'unité de coupe comprenant au moins un rouleau de coupe (151) doté d'au moins un relief façonné (152) permettant de déterminer la forme du conditionnement ; et au moins un élément de contact (153) correspondant, destiné à séparer au moins un conditionnement monodose (1) d'une bande continue (911) de matériau.
PCT/IT2021/050349 2020-10-29 2021-10-26 Unité de coupe pour fabriquer des conditionnements monodoses WO2022091155A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000025687 2020-10-29
IT102020000025687A IT202000025687A1 (it) 2020-10-29 2020-10-29 Unita’ di taglio per la realizzazione di confezioni monodose

Publications (1)

Publication Number Publication Date
WO2022091155A1 true WO2022091155A1 (fr) 2022-05-05

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ID=74184786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2021/050349 WO2022091155A1 (fr) 2020-10-29 2021-10-26 Unité de coupe pour fabriquer des conditionnements monodoses

Country Status (2)

Country Link
IT (1) IT202000025687A1 (fr)
WO (1) WO2022091155A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004092017A1 (fr) * 2003-04-14 2004-10-28 Idemitsu Unitech Co., Ltd. Procede et dispositif permettant de produire un corps d'emballage
US20060048616A1 (en) * 2004-07-02 2006-03-09 Sandvik Intellectual Property Ab Anvil for a rotary cutting unit and a rotary cutting unit having such anvil
US10549873B2 (en) * 2016-08-03 2020-02-04 Future Labo Co, Ltd. Bend-open package and method for manufacturing bend-open package

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004092017A1 (fr) * 2003-04-14 2004-10-28 Idemitsu Unitech Co., Ltd. Procede et dispositif permettant de produire un corps d'emballage
US20060048616A1 (en) * 2004-07-02 2006-03-09 Sandvik Intellectual Property Ab Anvil for a rotary cutting unit and a rotary cutting unit having such anvil
US10549873B2 (en) * 2016-08-03 2020-02-04 Future Labo Co, Ltd. Bend-open package and method for manufacturing bend-open package

Also Published As

Publication number Publication date
IT202000025687A1 (it) 2022-04-29

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