EP3398860B1 - A flow-pack packaging machine - Google Patents

A flow-pack packaging machine Download PDF

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Publication number
EP3398860B1
EP3398860B1 EP18168184.2A EP18168184A EP3398860B1 EP 3398860 B1 EP3398860 B1 EP 3398860B1 EP 18168184 A EP18168184 A EP 18168184A EP 3398860 B1 EP3398860 B1 EP 3398860B1
Authority
EP
European Patent Office
Prior art keywords
unwinding
unit
packaging
packaging film
unwinding unit
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
EP18168184.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3398860A1 (en
Inventor
Mr. Riccardo CAVANNA
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.)
Cavanna SpA
Original Assignee
Cavanna SpA
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Filing date
Publication date
Application filed by Cavanna SpA filed Critical Cavanna SpA
Publication of EP3398860A1 publication Critical patent/EP3398860A1/en
Application granted granted Critical
Publication of EP3398860B1 publication Critical patent/EP3398860B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65B9/06—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
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • 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
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B65H2301/46312—Adhesive tape double-sided
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5121—Bending, buckling, curling, bringing a curvature
    • B65H2301/51214—Bending, buckling, curling, bringing a curvature parallel to direction of displacement of handled material
    • B65H2301/512145—Forming a tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/112—Length of a loop, e.g. a free loop or a loop of dancer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material

Definitions

  • the present invention relates to the packaging of products and regards a flow-pack packaging machine.
  • the flow-pack package is one of the most widely used systems for packaging food products, such as, for example, biscuits, snacks, bars, etc.
  • a continuous packaging film coming from a reel is folded into the shape of a tubular element that surrounds the articles to be packaged.
  • the tubular element of packaging material is closed by means of a continuous longitudinal weld that joins the opposite longitudinal edges of the packaging film, and by means of transverse welds that seal the tubular element at opposite sides with respect to the products.
  • a horizontal flow-pack packaging machine typically comprises:
  • the unwinding unit is usually located above a portion of the horizontal conveyor. Usually it is necessary to provide a free space between the unwinding unit and the horizontal conveyor to allow maintenance or cleaning operations of the conveyor. Consequently, in many cases, the unwinding unit is arranged quite high from the ground, which complicates the operations of replacing the reels of packaging film.
  • US2009229228-A1 discloses a packaging machine comprising a movable support which is rotatable about a horizonal axis, carrying an unwinding shaft and rolls for guiding the packaging film.
  • FR2182867-A1 discloses a packaging machine comprising two unwinding units mounted at opposite sides of a support which is rotatable about a horizontal axis.
  • the present invention aims to provide a flow-pack packaging machine in which the unwinding unit can be arranged in an ergonomic position for the operation of changing the reels, without however hindering the cleaning or maintenance operations of the conveyor.
  • this object is achieved by a flow-pack packaging machine having the characteristics forming the subject of claim 1.
  • numeral 10 indicates a horizontal flow-pack packaging machine.
  • the packaging machine 10 comprises a stationary support frame 12, which rests on the ground by means of feet 14.
  • the machine 10 comprises a horizontal conveyor 16 carried by the frame 12.
  • the horizontal conveyor 16 is configured to advance a flow of products in a longitudinal direction A.
  • the machine 10 comprises an unwinding unit 18 which extends above a portion 16a of the horizontal conveyor 16.
  • the unwinding unit 18 is configured to feed a continuous packaging film to a stationary forming device 20 located along the path of the flow of products that advance on the conveyor 16.
  • the forming device 20 is configured to fold the packaging film into a tubular element that surrounds the products to be packaged while they advance in the direction A.
  • the tubular element formed by the packaging material film advances in the longitudinal direction A together with the flow of products.
  • the machine 10 comprises a longitudinal welding assembly 22 located downstream of the forming device 20.
  • the longitudinal welding device 22 is configured to form a continuous longitudinal weld between the opposite longitudinal edges of the tubular element formed by the packaging film.
  • the machine 10 also comprises a transverse welding assembly 24 configured to transversally weld the tubular element at opposite sides of the products, so as to seal the products within respective packages.
  • the general operating scheme of the machine 10 is that of a traditional horizontal flow-pack packaging machine, well-known in the packaging sector.
  • the constructional details and the operating modes of the various components of the machine 10 do not require a detailed description, being well-known to those skilled in the art.
  • the unwinding unit 18 of the machine 10 is movable with respect to the support frame 12 in a vertical direction B between a lowered position and a raised position, and vice versa.
  • the unwinding unit 18 is associated with actuator means (not illustrated) operable to control the vertical movement of the unwinding unit 18 between the lowered position and the raised position, and vice versa.
  • the unwinding unit 18 comprises a vertical plate 26, which is movable in the vertical direction B along vertical guides carried by the support frame 12.
  • the vertical plate 26 carries two idler unwinding shafts 28', 28" projecting cantileverly in a horizontal direction from the vertical plate 26.
  • Two reels 30', 30" of packaging film are intended to be mounted on respective unwinding shafts 28', 28".
  • the unwinding unit 18 comprises a first and a second tensioning unit 32', 32", each of which comprises two stationary rollers 34', 34" and a movable roller 36', 36", all carried by the vertical plate 26.
  • the unwinding unit 18 comprises a junction unit 38 carried by the vertical plate 26.
  • the unwinding unit 18 comprises a motorized roller 40 located below the junction unit 38 and cooperating with an idler roller 42.
  • the unwinding unit 18 comprises a transverse alignment assembly 44 including a support 46 free to pivot in a horizontal plane and carrying a return roller 48.
  • Another return roller 50 is arranged between the motorized drive roller 40 and the return roller 48 of the alignment device 44.
  • the motorized drive roller 40, the alignment device 44 and the additional return roller 50 are all carried by the vertical plate 26.
  • the packaging film F' that unwinds from the first reel 30' and the packaging film F" that unwinds from the second reel 30" pass through the respective tensioning units 32', 32" and arrive together at the junction unit 38.
  • only one of the reels 30', 30" feeds the respective film F', F" while the other reel is stationary, on hold.
  • Only the packaging film coming from the reel that is being unwound leaves the junction unit 38, for example, the film F' coming from the first reel 30'.
  • the packaging films F', F" cooperate with respective sensing devices 52', 52", which detect the presence or absence of the respective films F', F" upstream of the junction unit 38.
  • the junction unit 38 When one of the two sensing devices 52', 52" detects the absence of the respective film F', F", the junction unit 38 is activated to perform the junction between the films F' and F".
  • the junction unit 38 carries out the junction between the tail of a first film F' with the head of a second film F".
  • the film F' or F" at the outlet of the unwinding unit 18 passes onto an assembly of stationary guide rollers 54 carried by the support frame 12. Downstream of the guide roller assembly 54, the packaging film F' or F" passes through a roller assembly 56 and from there it is fed to the stationary forming device 20.
  • the roller unit 56 allows setting of the approach angle of the film F', F" to the stationary former 20.
  • a compensation roller 58 is arranged, which is movable in the vertical direction B, independently of the vertical plate 26.
  • the compensation roller 58 imparts a U-shaped path to the packaging film F' or F" upstream of the first of the stationary guide rollers 54.
  • the compensation roller 58 is movable between a lowered position corresponding to the lowered position of the unwinding unit 18 and a raised position corresponding to the raised position of the unwinding unit 18.
  • the junction unit 38 When, during the course of unwinding, the reel 30' or 30" finishes, the junction unit 38 performs the junction of the packaging film tail coming from the finished reel, with the packaging film head coming from the remaining full reel. Changing from the finished reel to the remaining full reel can be carried out without interrupting operation of the machine 10. While the machine 10 operates with the packaging film coming from the new reel, an operator replaces the finished reel.
  • the replacement operation envisages removal of the core of the finished reel from the shaft 28', 28", assembly of a new reel on the shaft, positioning of the initial part of the packaging film of the new reel through the rollers 34', 36' or 34", 36", positioning of the head end of the film within the junction unit 38, and application of a layer of double-sided tape on the head portion of the new packaging film, which serves for joining to the tail of the film being unwound.
  • the vertical plate 26 of the unwinding unit 18 is positioned in the lowered position illustrated in Figure 2 . In this position, the unwinding shafts 28', 28", the rollers 34', 36', 34", 36" and the junction unit 38 are in an ergonomic position that favors the operator.
  • the unwinding unit 18 can be left in the lowered position illustrated in Figure 2 or it can be moved to the raised position illustrated in Figure 3 .
  • the machine 10 is able to operate without interruptions and without discontinuity even during the transition of the unwinding unit 18 from the lowered position to the raised position, and vice versa.
  • the stroke of the unwinding unit 18 from the lowered position to the raised position and vice versa is indicated by h in Figure 3 .
  • the unwinding unit 18 When the unwinding unit 18 is in the raised position, it is easier to access the portion of the horizontal conveyor 16a located below the unwinding unit 18 for cleaning or maintenance operations of the conveyor 16.
  • the raised position of the unwinding unit 18 also improves the visibility of the conveyor portion 16a during operation of the machine.
  • the compensation roller 58 moves in the vertical direction B together with the plate 26 of the unwinding unit 18, but with a stroke that is halved with respect to the stroke of the vertical plate 26.
  • the stroke of the compensation roller 58 from the lowered position to the raised position, and vice versa is equal to h/2, where h is the stroke of the vertical plate 26 of the unwinding unit 18 from the lowered position to the raised position, and vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP18168184.2A 2017-05-02 2018-04-19 A flow-pack packaging machine Active EP3398860B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000046835A IT201700046835A1 (it) 2017-05-02 2017-05-02 Macchina confezionatrice flow-pack

Publications (2)

Publication Number Publication Date
EP3398860A1 EP3398860A1 (en) 2018-11-07
EP3398860B1 true EP3398860B1 (en) 2020-03-04

Family

ID=60020288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18168184.2A Active EP3398860B1 (en) 2017-05-02 2018-04-19 A flow-pack packaging machine

Country Status (3)

Country Link
EP (1) EP3398860B1 (it)
ES (1) ES2783977T3 (it)
IT (1) IT201700046835A1 (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110498271B (zh) * 2019-09-10 2020-10-23 阜阳知麓信息科技有限公司 一种彩印纸覆膜机的输送装置
CN114212302B (zh) * 2021-12-30 2023-03-31 浙江希缘金属包装有限公司 一种包装装潢用包装品自动覆膜装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1004128A (en) * 1972-05-02 1977-01-25 A-T-O Inc. Packaging apparatus
CH655077A5 (fr) * 1984-01-27 1986-03-27 Sapal Plieuses Automatiques Dispositif d'alimentation en materiau d'emballage, d'une machine a emballer.
DE10218137B4 (de) * 2002-04-23 2005-10-20 Franz-Josef Meurer Einrichtung zum Zuführen von aufgewickeltem Verpackungsmaterial
ITVI20060150A1 (it) * 2006-05-18 2007-11-19 Alessandra Sambugaro Macchina confezionatrice con film termosaldabile
KR20140002342A (ko) * 2012-06-29 2014-01-08 (주)제이브이엠 약제 자동 포장기의 포장지 공급장치

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
ES2783977T3 (es) 2020-09-21
IT201700046835A1 (it) 2018-11-02
EP3398860A1 (en) 2018-11-07

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