EP1516819A1 - Dispositif d' alimentation de feuilles vers une ligne d' emballage. - Google Patents

Dispositif d' alimentation de feuilles vers une ligne d' emballage. Download PDF

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Publication number
EP1516819A1
EP1516819A1 EP04104560A EP04104560A EP1516819A1 EP 1516819 A1 EP1516819 A1 EP 1516819A1 EP 04104560 A EP04104560 A EP 04104560A EP 04104560 A EP04104560 A EP 04104560A EP 1516819 A1 EP1516819 A1 EP 1516819A1
Authority
EP
European Patent Office
Prior art keywords
stack
feed unit
roller
hopper
sheets
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
EP04104560A
Other languages
German (de)
English (en)
Other versions
EP1516819B1 (fr
Inventor
Andrea Biondi
Nadio Nazario Di Nunzio
Giovanni Madera
Flavio Trebbi
Fiorenzo Draghetti
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.)
GD SpA
Original Assignee
GD 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
Application filed by GD SpA filed Critical GD SpA
Publication of EP1516819A1 publication Critical patent/EP1516819A1/fr
Application granted granted Critical
Publication of EP1516819B1 publication Critical patent/EP1516819B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/34Article-retaining devices controlling the release of the articles to the separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/08Separating articles from piles using pneumatic force
    • B65H3/0808Suction grippers
    • B65H3/085Suction grippers separating from the bottom of pile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/10Speed
    • B65H2513/11Speed angular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/10Mass, e.g. mass flow rate; Weight; Inertia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00Actuating means
    • B65H2555/20Actuating means angular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/17Nature of material
    • B65H2701/176Cardboard
    • B65H2701/1764Cut-out, single-layer, e.g. flat blanks for boxes

Definitions

  • the present invention relates to a feed unit for feeding sheets to a packing line.
  • An automatic product packing machine comprises at least one feed unit for supplying a packing line on the machine with a succession of sheets used in the packing process.
  • the feed units may supply the succession of sheets either by cutting the sheets off a continuous web unwound off a reel, or by withdrawing individual sheets from the bottom of a stack housed inside a hopper.
  • Patent US-A1-4918908 One example of a feed unit for withdrawing individual sheets from the bottom of a stack housed inside a hopper is described in Patent US-A1-4918908, in which a suction pickup roller is rolled against a sheet at a bottom end of the hopper, so that the sheet winds about the roller; once the sheet is fully wound, the pickup roller is arrested in a release position to release the sheet onto an input conveyor of the packing line; and the input conveyor is normally defined by two pickup rollers parallel and tangent to each other to engage the sheet between them.
  • Patent EP-Al-0970885 Another example of a feed unit for withdrawing individual sheets from the bottom of a stack housed inside a hopper is described in Patent EP-Al-0970885, in which a wheel, rotating about its axis, feeds a gripping head continuously along an endless path through a loading station, where the gripping head, oscillating with respect to the wheel about an axis parallel to the wheel axis, engages a withdrawal opening in the hopper to withdraw a sheet, and through a follow-up unloading station, where the gripping head, rotating together with the wheel, feeds the sheet to a feed roller.
  • Feed units with hoppers as described above function correctly at relatively slow operating speeds. At fast operating speeds typical of modern packing machines, however, the sheets close to the bottom of the hopper tend to be shifted out of correct alignment by the mechanical stress exerted on the stack by the pickup device when withdrawing individual sheets. As a result, each sheet is engaged by the pickup device, and so fed to the follow-up packing line, in the wrong position, thus impairing the overall quality of the finished packages and possibly also jamming the packing line.
  • a feed unit for feeding sheets to a packing line as claimed in Claim 1 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 1.
  • Number 1 in Figure 1 indicates as a whole a feed unit for feeding sheets 2 to a packing line (not shown).
  • Feed unit 1 comprises a vertical hopper 3 housing a stack 4 of sheet 2, and having a bottom withdrawal opening 5; and a pickup device 6 which engages withdrawal opening 5 in hopper 3 to withdraw individual sheets 2 successively from stack 4 and feed sheets 2 to the packing line.
  • hopper 3 comprises four fixed, L-shaped sections 7 located at the four corners of stack 4 to retain stack 4 laterally.
  • Pickup device 6 comprises a wheel 8 rotating about a respective central axis 9; and a suction gripping head 10 supported by wheel 8 to move cyclically along an endless path through a loading station, where gripping head 10 engages withdrawal opening 5 in hopper 3 to withdraw a sheet 2, and through a follow-up unloading station, where gripping head 10 feeds the sheet to the packing line in known manner.
  • wheel 8 supports a number of gripping heads 10; and each gripping head 10 may be fitted to wheel 8 to oscillate, under the control of a cam actuating system, about a respective axis parallel to central axis 9 of wheel 8.
  • pickup device 6 may be formed differently, e.g. as described in Patent US-A1-4918908.
  • the feed unit comprises two parallel rollers 11 located on opposite sides of stack 4, and each having a lateral surface 12 on which a bottom portion of stack 4 rests. More specifically, as shown more clearly in Figure 3, two major transverse edges of stack 4 rest on respective lateral surfaces 12 of rollers 11.
  • a known actuating device 13 (shown schematically in Figure 2) is connected mechanically to rollers 11, and rotates each roller 11 about a respective longitudinal axis 14 of symmetry in such a direction as to push sheets 2 in stack 4 upwards (i.e. away from withdrawal opening 5, as shown in Figure 3).
  • An alternative embodiment comprises only one roller 11 on one side of stack 4, and respective bottom end portions of fixed sections 7 are located on the opposite side of stack 4 and on a level with roller 11.
  • Actuating device 13 preferably rotates rollers 11 at the same adjustable given constant speed.
  • the rotation speed of rollers 11 is adjusted as a function of the withdrawal rate of sheets 2 from withdrawal opening 5 in hopper 3 and/or as a function of the number of sheets 2 in stack 4 (and therefore of the weight of stack 4).
  • the portion of lateral surface 12 of each roller 11 contacting stack 4 has a high friction coefficient achieved by knurling comprising a series of grooves parallel to longitudinal axis 14 of symmetry.
  • the portion of the lateral surface of each roller 11 contacting stack 4 may have a covering of elastic material (e.g. rubber).
  • each roller 11 is so formed that its lateral surface only contacts part of stack 4.
  • two knurled portions 15 of each roller 11 only contact part of the extension of stack 4, and are separated by a groove 16.
  • a window for the passage of each sheet 2 is defined between the two rollers 11, and through which each sheet 2 is drawn by pickup device 6 when withdrawing sheet 2.
  • the window defined between the two rollers 11 is smaller than each sheet 2. More specifically, the minimum distance between lateral surfaces 12 of the two rollers 11, measured in a direction perpendicular to longitudinal axes 14 of symmetry of the two rollers 11, is less than the corresponding dimension of each sheet 2 measured in the same direction.
  • Hopper 3 may also comprise at least one fixed horizontal supporting member (not shown) located at withdrawal opening 5 and defining a bottom support of stack 4 to retain stack 4 inside hopper 3.
  • feed unit 1 must comprise a push device for gradually feeding stack 4 towards withdrawal opening 5 (in the hopper 3 shown, this is achieved by force of gravity drawing sheets 2 in stack 4 downwards).
  • suction gripping head 10 engages and exerts force on a sheet 2 to extract sheet 2 from withdrawal opening 5 in the hopper and through the window defined between the two rollers 11; and, since the window defined between the two rollers 11 is smaller than sheet 2, sheet 2 is inevitably deformed elastically to be extracted from hopper 3. Moreover, if bottom supporting members of stack 4 are provided, sheet 2 must be detached from the supporting members by the action of gripping head 10.
  • rollers 11 provide for realigning sheets 2 in stack 4 close to withdrawal opening 5 in hopper 3. That is, if sheets 2 close to withdrawal opening 5 are shifted out of correct alignment by the mechanical stress exerted on stack 4 by pickup device 6 when withdrawing individual sheets 2, the action of rollers 11 provides for realigning sheets 2.
  • the action of rollers 11 has also been found to have a separating effect on sheets 2 in stack 4 close to withdrawal opening 5 in hopper 3, thus assisting detachment of sheets 2 from stack 4. That is, sheets 2 in stack 4 tend to adhere to one another, thus making it difficult to extract each sheet 2 from withdrawal opening 5 in hopper 3.
  • the action of rollers 11, on the other hand tends to separate sheets 2 close to the withdrawal opening, thus counteracting any adhesion phenomena of sheets 2.
  • Feed unit 1 as described above may be used for supplying sheets 2 of any type, e.g. blanks for producing rigid packages, sheets of wrapping material for producing soft packages, or labels or stamps applied to the inside or outside of packages.
EP04104560A 2003-09-22 2004-09-21 Dispositif d' alimentation de feuilles vers une ligne d' emballage. Not-in-force EP1516819B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030549 2003-09-22
IT000549A ITBO20030549A1 (it) 2003-09-22 2003-09-22 Unita' di alimentazione di fogli ad una linea di incarto

Publications (2)

Publication Number Publication Date
EP1516819A1 true EP1516819A1 (fr) 2005-03-23
EP1516819B1 EP1516819B1 (fr) 2007-01-17

Family

ID=34179310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104560A Not-in-force EP1516819B1 (fr) 2003-09-22 2004-09-21 Dispositif d' alimentation de feuilles vers une ligne d' emballage.

Country Status (6)

Country Link
US (1) US20050098937A1 (fr)
EP (1) EP1516819B1 (fr)
JP (1) JP4597621B2 (fr)
CN (1) CN100503372C (fr)
DE (1) DE602004004336T2 (fr)
IT (1) ITBO20030549A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914169A1 (fr) * 2006-10-18 2008-04-23 G.D. S.p.A Unité et procédé pour alimenter les étiquettes dans une empaqueteuse pour produits de tabac
WO2012055520A1 (fr) * 2010-10-29 2012-05-03 Mühlbauer Ag Dispositif d'individualisation de cartes disposées dans une pile

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180364B (zh) * 2010-07-22 2016-04-13 中钞信用卡产业发展有限公司 卡片送料装置及送料方法
DE102012207320B4 (de) * 2012-05-03 2013-11-21 Maschinenbau Oppenweiler Binder Gmbh & Co. Kg Saugtransportvorrichtung und Verfahren zur Abnahme eines Bogens von einem Bogenstapel
CN104828303B (zh) * 2015-04-21 2017-04-12 江苏比微曼智能科技有限公司 一种带标签纸装袋装置的环形流水线
CN104828302B (zh) * 2015-04-21 2017-04-12 江苏比微曼智能科技有限公司 一种环形流水线
CN106395004A (zh) * 2016-11-28 2017-02-15 张家港爱铝铝箔科技有限公司 用于纸盒的输送装置及装盒机
CN110342292B (zh) * 2019-06-19 2021-02-05 柳州市铂华智能科技有限公司 一种纸张定位打散装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2326282A1 (de) * 1973-05-23 1974-12-12 Standard Elektrik Lorenz Ag Entnahmevorrichtung
EP0485343A1 (fr) * 1990-11-06 1992-05-13 Willi Maschinenbau Ag Dispositif de désempilage et de mise en éventail d'objets flexibles en forme de feuilles
DE29620389U1 (de) * 1996-11-25 1997-01-23 Wollmershaeuser Manfred Blistervereinzelung
US20020056257A1 (en) * 2000-11-14 2002-05-16 Reinhard Deutsch Method of and apparatus for making and manipulating coupons in cigarette packing machines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443006A (en) * 1980-07-21 1984-04-17 Billcon Corporation Of America Document and currency counter
JPS61163259U (fr) * 1985-03-29 1986-10-09
US4767390A (en) * 1987-01-27 1988-08-30 Federal Paper Board Company, Inc. Apparatus for and method of applying handle to carton closure flap
JPH0218235A (ja) * 1988-07-05 1990-01-22 Fujitsu Ltd 紙葉供給装置
DE4219445A1 (de) * 1992-06-13 1993-12-16 Tetra Pak Gmbh Vorrichtung zum Vereinzeln von gestapelten Blättern aus Kunststoff, Pappe oder dergleichen
JPH06100186A (ja) * 1992-09-22 1994-04-12 Hitachi Electron Eng Co Ltd 磁気カードのピック機構
JPH08175765A (ja) * 1994-12-27 1996-07-09 Glory Ltd 紙葉類収納繰出し装置
JP2000190916A (ja) * 1998-12-28 2000-07-11 Sapporo Breweries Ltd シ―ト状段ボ―ル保持装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2326282A1 (de) * 1973-05-23 1974-12-12 Standard Elektrik Lorenz Ag Entnahmevorrichtung
EP0485343A1 (fr) * 1990-11-06 1992-05-13 Willi Maschinenbau Ag Dispositif de désempilage et de mise en éventail d'objets flexibles en forme de feuilles
DE29620389U1 (de) * 1996-11-25 1997-01-23 Wollmershaeuser Manfred Blistervereinzelung
US20020056257A1 (en) * 2000-11-14 2002-05-16 Reinhard Deutsch Method of and apparatus for making and manipulating coupons in cigarette packing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914169A1 (fr) * 2006-10-18 2008-04-23 G.D. S.p.A Unité et procédé pour alimenter les étiquettes dans une empaqueteuse pour produits de tabac
US7644916B2 (en) 2006-10-18 2010-01-12 G.D S.P.A. Unit and a method for feeding labels in a packer machine for tobacco products
WO2012055520A1 (fr) * 2010-10-29 2012-05-03 Mühlbauer Ag Dispositif d'individualisation de cartes disposées dans une pile

Also Published As

Publication number Publication date
DE602004004336T2 (de) 2007-07-05
EP1516819B1 (fr) 2007-01-17
JP2005126236A (ja) 2005-05-19
CN1600643A (zh) 2005-03-30
US20050098937A1 (en) 2005-05-12
JP4597621B2 (ja) 2010-12-15
CN100503372C (zh) 2009-06-24
ITBO20030549A1 (it) 2005-03-23
DE602004004336D1 (de) 2007-03-08

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