EP1050501B1 - Method and unit for stacking articles, in particular paper bags or similar - Google Patents

Method and unit for stacking articles, in particular paper bags or similar Download PDF

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Publication number
EP1050501B1
EP1050501B1 EP00108953A EP00108953A EP1050501B1 EP 1050501 B1 EP1050501 B1 EP 1050501B1 EP 00108953 A EP00108953 A EP 00108953A EP 00108953 A EP00108953 A EP 00108953A EP 1050501 B1 EP1050501 B1 EP 1050501B1
Authority
EP
European Patent Office
Prior art keywords
group
station
stacking
unit
axis
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.)
Expired - Lifetime
Application number
EP00108953A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1050501A3 (en
EP1050501A2 (en
Inventor
Silvano Castaldini
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.)
Castaldini Srl
Original Assignee
Castaldini Srl
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 Castaldini Srl filed Critical Castaldini Srl
Publication of EP1050501A2 publication Critical patent/EP1050501A2/en
Publication of EP1050501A3 publication Critical patent/EP1050501A3/en
Application granted granted Critical
Publication of EP1050501B1 publication Critical patent/EP1050501B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H15/00—Overturning articles
    • B65H15/02—Overturning piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/332—Turning, overturning
    • B65H2301/3321—Turning, overturning kinetic therefor
    • B65H2301/33214—Turning, overturning kinetic therefor about an axis perpendicular to the direction of displacement and parallel to the surface of material
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4211—Forming a pile of articles alternatively overturned, or swivelled from a certain angle
    • B65H2301/42112—Forming a pile of articles alternatively overturned, or swivelled from a certain angle swivelled from 180°
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4224—Gripping piles, sets or stacks of articles
    • B65H2301/42242—Gripping piles, sets or stacks of articles by acting on the outermost articles of the pile for clamping the pile
    • 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
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the present invention relates to a method and unit for stacking articles, in particular paper bags or similar.
  • a unit is used for stacking the bags coming off an automatic bag manufacturing machine, in particular for producing extendable, flat- or square-based paper bags.
  • This type of bag is characterized by having, when folded, one thickness at the base and another at the open end, so that only a certain number of bags can be stacked with all the bases facing the same way, without endangering the stability of the stack.
  • such bags are stacked by successively forming a number of groups, each of which has a first end corresponding with the base ends of the bags, and a second end corresponding with the open ends of the bags; and the next stage in the formation of the stack consists in successively stacking the groups so that a first end of a first group corresponds with a second end of a second group, and so on to form a stack of substantially the same thickness on all sides.
  • US 1 637 170 describes an associating and delivery mechanism which present the feature that the fold line of a plurality of products is in reverse position relatively to the fold line of a plurality of adjacent products.
  • Each single item is handled separately and the formation of preliminary groups to be transferred from an input station and a stacking station is not envisaged.
  • WO 98/13263 shows, in its turn, a method and an apparatus for packaging flat articles.
  • the apparatus described in this document handles one group of articles at a time.
  • Figure 1 is divided into Figures 1a and 1b showing two schematic side views of two different portions of the unit according to the present invention (see the plan view in Figure 2).
  • Number 1 in Figure 1 indicates as a whole a unit for stacking paper bags 2 or similar, each of which, in the final expanded configuration (Figures 3a, 4a), is substantially cup-shaped and comprises two parallel face walls 3, two parallel lateral walls 4 perpendicular to walls 3, and a bottom wall 5.
  • Unit 1 comprises an input station 6 connecting unit 1 to an automatic machine 7 for producing bags 2, and which in turn comprises an output roller 8 fitted to a frame 8a of automatic machine 7 to rotate - with respect to frame 8a and by virtue of a known actuating device not shown - in a given direction 10 (anticlockwise in Figure 1) about an axis 9 perpendicular to the Figure 1 plane.
  • Roller 8 feeds bags 2 successively to unit 1 in an initial flattened configuration ( Figures 3b, 4b) in which the two face walls 3 are positioned substantially contacting each other, lateral walls 4 are folded inwards along the respective center lines and positioned between walls 3, and bottom wall 5 is folded substantially onto one of walls 3.
  • each bag 2 is therefore thicker at the closed end 11 ( Figures 3b, 4b) than at the open end 12.
  • Roller 8 conveys each bag 2 with ends 11 and 12 respectively at the front and rear in direction 10 to form groups 13 of bags 2 at input station 6.
  • Each group 13 comprises a given N number of bags 2, which are all oriented with the thicker ends 11 facing downwards (Figure 1), so that group 13 has two end faces 13a, 13b of different thicknesses.
  • Group 13 also has a substantially horizontal axis A ( Figure 1) perpendicular to the Figure 1 plane and parallel to the two faces 13a, 13b.
  • Unit 1 comprises a frame 14 having ,a substantially vertical surface 14a and a substantially horizontal surface 14b; and a pickup device 15 for forming and feeding groups 13 successively to a transfer station 16 and along an initial portion of a given path P extending in a direction 17 substantially parallel to surface 14b.
  • a counter (not shown) must be provided at pickup device 15 to count the incoming bags 2 and so form a number of groups 13 all with the same N number of bags 2.
  • Device 15 comprises two guides 18a, 18b integral with frame 14, extending parallel to direction 17, and located respectively over and beneath path P; and two powered slides 19a, 19b, each fitted to a respective guide 18a, 18b to slide back and forth in a straight line in direction 17.
  • Each slide 19a, 19b supports a respective disk 20a, 20b, which is fitted to respective slide 19a, 19b to oscillate - with respect to slide 19a, 19b and by virtue of a respective known actuating device not shown - about a respective axis 21a, 21b parallel to axis 9.
  • Disk 20b is fitted with two actuating cylinders 22b parallel to each other and to surface 14a, while disk 20a is fitted with one actuating cylinder 22a similar to actuating cylinders 22b ( Figure 1).
  • Each actuating cylinder 22a, 22b has a respective output rod 23, which is movable between an extracted position, in which rod 23 is substantially located outside respective actuating cylinder 22a, 22b, and a withdrawn position, in which rod 23 is substantially housed inside respective actuating cylinder 22a, 22b.
  • Actuating cylinders 22b define a gripping member 24, and are movable with respect to each other - and by virtue of a known actuating device not shown - between a parted position, and a gripping position wherein respective rods 23 grip a respective group 13 of bags 2 at end 13b, i.e. at the closed ends 11 of bags 2.
  • Actuating cylinder 22a is connected integrally to respective disk 20a, and cooperates at station 16 with a fixed actuating cylinder 22 to grip said group 13 at end 13a of group 13, i.e. at the open ends 12 of bags 2 in group 13.
  • Unit 1 also comprises a conveying and turnover device 25, in turn comprising two guides 26a, 26b, which are fitted to surface 14b of frame 14, are located on opposite sides of path P, and extend, parallel to direction 17, between transfer station 16 and a stacking station 27 where groups 13 are stacked as described in detail later on.
  • a conveying and turnover device 25 comprising two guides 26a, 26b, which are fitted to surface 14b of frame 14, are located on opposite sides of path P, and extend, parallel to direction 17, between transfer station 16 and a stacking station 27 where groups 13 are stacked as described in detail later on.
  • Device 25 also comprises two powered slides 28a, 28b fitted to respective guides 26a, 26b to slide, along guides 26a, 26b, back and forth in a straight line along path P in direction 17.
  • Each slide 28a, 28b is fitted with a respective guide 29a, 29b, which extends in a direction 30 perpendicular to surface 14b and supports a respective slide 31a, 31b powered to slide in two opposite directions along respective guide 29a, 29b.
  • Each slide 31a, 31b supports a respective disk 32a, 32b ( Figure 2), which, by means of a respective known actuating device 33, is rotated, with respect to respective slide 31a, 31b, about a respective axis 34a, 34b ( Figure 2).
  • Each disk 32a, 32b supports a respective gripping member 35a, 35b similar to gripping member 24 of pickup device 15 and comprising a respective pair 36a, 36b of actuating cylinders movable with respect to each other between a parted position and a gripping position.
  • output roller 8 successively feeds bags 2, in the initial flattened configuration ( Figures 3b, 4b), to input station 6 of unit 1, where actuating cylinders 22b are in the parted position, rods 23 of actuating cylinders 22b are in the extracted position, and rod 23 of actuating cylinder 22a is in the withdrawn position to clear the incoming bags 2 from roller 8.
  • bags 2 are therefore supported at the bottom by a pair of guides (not shown) extending parallel to direction 17 and located on opposite sides of slide 19b, and are supported at the front, in direction 17, by rod 23 of one of actuating cylinders 22b, and at the rear, in direction 17, by the outer surface of roller 8.
  • a counting device not shown
  • actuating cylinders 22b are moved into the gripping position to grip group 13 at ends 11 of respective bags 2, and rod 23 of actuating cylinder 22a is moved into the extracted position to engage the rear of the newly formed group 13.
  • both slides 19a, 19b are operated simultaneously to transfer group 13 from station 6 to transfer station 16, where actuating cylinder 22a cooperates with fixed actuating cylinder 22 to grip group 13 at end 13a.
  • group 13 is engaged by gripping member 35a. More specifically, rods 23 of respective actuating cylinders 36a are moved into the extracted position, and actuating cylinders 36a are moved into the gripping position to grip group 13 close to ends 11 of respective bags 2. At this point, rods 23 of actuating cylinders 22a and 22b and of fixed actuating cylinder 22 are moved into the withdrawn position to release group 13, and pickup device 15 is moved back to station 6 to form and pick up the next group 13.
  • gripping member 35a is transferred to stacking station 27 and simultaneously rotated substantially 90° (clockwise in the example shown) about respective axis 34a. Finally, at station 27, gripping member 35a places group 13 parallel to surface 14b.
  • gripping member 35b engages the next group 13 close to end 13a, and rotates substantially 90° (anticlockwise in the example shown) about respective axis 34b, so that ends 11 of bags 2 are located at the rear in direction 17, and, at station 27, are therefore superimposed on ends 12 of bags 2 in the forgoing group 13.
  • end 13a of a second group 13 is placed on top of end 13b of a first group 13, and so on to form a stack 37 at stacking station 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Packaging Of Special Articles (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Registering Or Overturning Sheets (AREA)
EP00108953A 1999-04-28 2000-04-27 Method and unit for stacking articles, in particular paper bags or similar Expired - Lifetime EP1050501B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO990199 1999-04-28
IT1999BO000199A IT1309985B1 (it) 1999-04-28 1999-04-28 Metodo ed unita' per l' impilaggio di articoli, in particolare perl'impilaggio di sacchetti di carta o similari

Publications (3)

Publication Number Publication Date
EP1050501A2 EP1050501A2 (en) 2000-11-08
EP1050501A3 EP1050501A3 (en) 2001-05-23
EP1050501B1 true EP1050501B1 (en) 2004-02-18

Family

ID=11343928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108953A Expired - Lifetime EP1050501B1 (en) 1999-04-28 2000-04-27 Method and unit for stacking articles, in particular paper bags or similar

Country Status (4)

Country Link
EP (1) EP1050501B1 (it)
AT (1) ATE259750T1 (it)
DE (1) DE60008310D1 (it)
IT (1) IT1309985B1 (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10217241A1 (de) * 2002-04-15 2003-11-06 Optima Filling & Packaging Vorrichtung zum Speichern von Beuteln
FR2930242B1 (fr) * 2008-04-18 2010-05-28 Printack Procede d'agencement de feuilles presentant des variations de geometrie dans la direction z, et piles de feuilles ainsi agencees.
CN102785957B (zh) * 2012-07-25 2015-03-25 佛山市三水至丰纸品制造有限公司 一种用于纸板加工的自动翻板装置及其操作方法
CN103754431A (zh) * 2013-11-22 2014-04-30 常熟市常隆包装有限公司 纸袋包装机
ITUA20164420A1 (it) * 2016-05-27 2017-11-27 Biagioni Srl Scarico automatico per macchine sacchettatrici
JP7139158B2 (ja) * 2018-06-06 2022-09-20 Ｐａｃｒａｆｔ株式会社 袋搬送方法及び袋搬送装置
CN109291680B (zh) * 2018-10-31 2024-04-05 东莞市长和兴印刷机械有限公司 一种笔记本生产设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1637170A (en) * 1926-06-14 1927-07-26 Hoe & Co R Associating and delivery mechanism
US2668483A (en) * 1951-01-11 1954-02-09 Toronto Star Ltd Stacking device
FI101954B1 (fi) * 1996-09-27 1998-09-30 Jomet Oy Menetelmä ja laitteisto litteiden esineiden pakkaamiseksi

Also Published As

Publication number Publication date
DE60008310D1 (de) 2004-03-25
ITBO990199A0 (it) 1999-04-28
EP1050501A3 (en) 2001-05-23
ATE259750T1 (de) 2004-03-15
ITBO990199A1 (it) 2000-10-28
IT1309985B1 (it) 2002-02-05
EP1050501A2 (en) 2000-11-08

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