EP1201579A2 - Procédé et dispositif pour prélever des rames de feuilles - Google Patents

Procédé et dispositif pour prélever des rames de feuilles Download PDF

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Publication number
EP1201579A2
EP1201579A2 EP01125525A EP01125525A EP1201579A2 EP 1201579 A2 EP1201579 A2 EP 1201579A2 EP 01125525 A EP01125525 A EP 01125525A EP 01125525 A EP01125525 A EP 01125525A EP 1201579 A2 EP1201579 A2 EP 1201579A2
Authority
EP
European Patent Office
Prior art keywords
group
pickup
sheets
supporting
ream
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.)
Withdrawn
Application number
EP01125525A
Other languages
German (de)
English (en)
Other versions
EP1201579A3 (fr
Inventor
Lia Grandi
Andrea Cinotti
Gianni Giacomuzzo
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.)
Innopack SRL
Original Assignee
Innopack 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 Innopack SRL filed Critical Innopack SRL
Publication of EP1201579A2 publication Critical patent/EP1201579A2/fr
Publication of EP1201579A3 publication Critical patent/EP1201579A3/fr
Withdrawn legal-status Critical Current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
    • B65H3/00—Separating articles from piles
    • B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
    • B65H3/322—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0833—Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/40—Separating articles from piles by two or more separators acting alternately on the same 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
    • 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
    • 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
    • B65H2301/4225—Handling piles, sets or stacks of articles in or on special supports
    • B65H2301/42256—Pallets; Skids; Platforms with feet, i.e. handled together with the stack
    • 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
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42324—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of 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
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations

Definitions

  • the present invention relates to a method of picking up reams of sheets.
  • a device is employed to pick up reams of sheets successively off a stack of sheets supported on a pallet.
  • Each ream normally comprises a given N number of sheets, and the pallet is loaded with a number of sheets which is a whole multiple of N enabling the formation and pickup of a given X number of reams.
  • the device is normally equipped with a gauge comprising a top jaw, which is placed on the top surface of the stack, and a bottom jaw defined by a knife, which is inserted inside the stack at a distance from the top jaw equal to the thickness of a ream, so as to select a ream from the stack at each operating cycle of the device.
  • the gauge also raises the selected ream at least partly, to enable pickup and feed means to be inserted inside the stack, to pick up the selected ream, and to feed the picked-up ream to an input station of an operating unit.
  • known devices of the above type are operated to leave the last ream on the pallet, which is normally treated as waste.
  • known devices of the above type involve considerable financial loss.
  • a method of picking up reams of sheets off a stack of sheets on a supporting pallet comprising an X number of said reams, and each said ream comprising an N number of said sheets; and the method comprising the step of successively picking up X-1 reams by means of first pickup means; and being characterized by also comprising the steps of picking up from a last ream on said pallet a first group of N-M sheets by means of said first pickup means, and a second group of M sheets by means of second pickup means.
  • the present invention also relates to a device for picking up reams of sheets.
  • a device for picking up a ream of N sheets off a supporting pallet comprising a first group of N-M sheets, and a second group of M sheets; and the device being characterized by comprising first pickup means for picking up said first group; and second pickup means for picking up said second group off said pallet.
  • Number 1 in Figure 1 indicates as a whole a device for picking up reams 2 (Figure 5) of sheets 3 off a stack 4 of sheets 3 on a supporting pallet 5.
  • Each ream 2 is defined by an N number of sheets 3
  • stack 4 is defined by a number of sheets 3 which is a whole multiple of N, so as to enable an X number of reams 2 to be picked up off pallet 5.
  • pallet 5 is moved in a substantially vertical direction 6 to feed reams 2 successively, along a path P parallel to direction 6, to a pickup and transfer station 7 of device 1, which selects each ream 2 from stack 4, picks up the selected ream 2, and feeds the picked-up ream 2 in a substantially horizontal direction 8 crosswise to direction 6, to transfer ream 2 to an input station 9 of a known operating unit not shown.
  • Device 1 has a known selecting device 10 for selecting each ream 2 from stack 4, and which comprises a slide 11 fitted in known manner to a frame (not shown) of the operating unit (not shown) to move linearly with respect to the frame in directions 6 and 8.
  • Device 10 also comprises a gauge 12, in turn comprising a top jaw 13 defined at the bottom by a substantially flat surface 14, and a bottom jaw defined by a substantially flat knife 15 extending parallel to surface 14, and the distance of which from surface 14 is adjustable manually or by means of a known actuating device not shown.
  • Knife 15 is connected in sliding manner to jaw 13 so as to move - with respect to jaw 13 and by virtue of two parallel actuating cylinders 16 - parallel to surface 14 to penetrate stack 4.
  • Jaw 13 is connected in rotary manner to slide 11 to oscillate - with respect to slide 11 and by virtue of a known actuating device 17 - about an axis 18 perpendicular to directions 6 and 8, and so move gauge 12 between a substantially horizontal position ( Figure 4) in which to select ream 2, and a tilted position ( Figure 5) in which a rear portion of the selected ream 2 is raised off stack 4.
  • Device 17 comprises a crank 19, which is oscillated about axis 18 by an actuating cylinder 20 hinged to slide 11 and having an output rod 21, a free end of which is mounted to slide, via the interposition of a pin 22 substantially parallel to axis 18, inside a slot 23 formed through crank 19.
  • Rod 21 is movable between a withdrawn position and an extracted position so that crank 19 engages or releases a pin 24 - substantially parallel to axis 18 and integral with jaw 13 - to move gauge 12 between the horizontal and titled positions.
  • Device 1 also comprises a known pressure member 25 defined by a substantially flat plate 26 crosswise to direction 6 and fitted to the free end of the output rod of an actuating cylinder 27, which moves plate 26 in direction 6 and is carried by the output rod of an actuating cylinder 28 for moving cylinder 27, and hence plate 26, in direction 8.
  • a known pressure member 25 defined by a substantially flat plate 26 crosswise to direction 6 and fitted to the free end of the output rod of an actuating cylinder 27, which moves plate 26 in direction 6 and is carried by the output rod of an actuating cylinder 28 for moving cylinder 27, and hence plate 26, in direction 8.
  • device 1 also comprises a pickup and transfer unit 29, in turn comprising a slide 30 fitted in known manner to said frame (not shown) of said operating unit (not shown) to move linearly in directions 6 and 8 with respect to the frame (not shown).
  • unit 29 also comprises two pickup and transfer devices 31 aligned in a direction 32 substantially parallel to axis 18, and located substantially on opposite sides of the whole defined by selecting device 10 and pressure member 25.
  • Each device 31 comprises a substantially C-shaped pickup and transfer member 33 fitted to slide 30 with its concavity facing stack 4; and a gripping member 34 fitted to member 33, on the opposite side to stack 4, via the interposition of a flat plate 35 fixed to member 33 and crosswise to direction 8.
  • Member 34 comprises an elongated flat plate 36, which is crosswise to direction 6, has at least one suction cup 37 connected to a known suction device not shown, and is fitted to the bottom end of a screw 38 having a longitudinal axis 39 substantially parallel to direction 6.
  • Screw 38 is fitted in rotary and axially-sliding manner through a supporting plate 40 perpendicular to plate 35, and is connected in angularly-fixed manner - at the top end and by means of a clamp 41 coaxial with axis 39 - to the output shaft (not shown) of a known rotary pneumatic actuating cylinder 42, so as to oscillate with respect to plate 40 and about axis 39 as described in detail later on.
  • Cylinder 42 has a substantially parallelepiped-shaped collar 43, which extends about axis 39, is fitted through with the output shaft (not shown) of cylinder 42, and has two faces 44 parallel to each other and to plate 35, and two faces 45 parallel to each other and perpendicular to faces 44.
  • Screw 38 is connected to a nut screw 46 by means of a screw-nut screw coupling 47 of a relative actuating device 48.
  • Device 48 comprises a motor 49 supported on plate 40 and having an output shaft 50, which is substantially parallel to screw 38 and connected to nut screw 46 by a belt transmission 51 for rotating nut screw 46 about axis 39 to move screw 38 linearly in direction 6.
  • gauge 12 is moved in direction 6 and in the horizontal position to bring surface 14 into contact with stack 4; and knife 15 is moved in direction 8 by means of relative actuating cylinders 16 so as to penetrate stack 4 to select a first ream 2.
  • gauge 12 is then moved by actuating device 17 into the tilted position to partly raise the selected ream 2; pressure member 25 is moved in directions 6 and 8 so as to contact and retain the top sheet 3 of the next ream 2; and both pickup and transfer devices 31 are moved in directions 6 and 8 to insert respective pickup and transfer members 33 beneath the raised ream 2 and transfer ream 2 in direction 8 to input station 9 of the operating unit (not shown).
  • Gauge 12 member 25, and unit 29 are then restored to their original positions to repeat the above operating sequence and transfer the first X-1 reams 2 in stack 4 to input station 9.
  • gauge 12 is adjusted, manually or by means of the respective actuating device (not shown), to set knife 15 to a distance from surface 14 equal to the thickness of N-M sheets 3.
  • gauge 12 is moved in direction 6 and in the horizontal position to bring surface 14 into contact with the top sheet 3 of a last ream 2 (hereinafter referred to as ream 2'); and knife 15 is moved in direction 8 by means of relative actuating cylinders 16 so as to penetrate ream 2' to select a group 52 of sheets 3 defined by N-M sheets 3.
  • gauge 12 is then moved by actuating device 17 into the tilted position to partly raise group 52 and to keep group 52 partly contacting a group 53 of sheets 3 defined by the remaining M sheets 3; and both pickup and transfer devices 31 are moved in directions 6 and 8 to insert respective members 33 beneath group 52.
  • pallet 5 is lowered in direction 6 to make room to maneuver gripping members 34; one of members 34 (hereinafter referred to as member 34a) is moved by respective actuating device 48 in direction 6 to position respective plate 36 beneath respective member 33; actuating cylinder 42 of member 34a is activated to rotate respective plate 36 substantially 90° about respective axis 39 and so set respective plate 36 to an operating position interfering with path P; and member 34a is first lowered, so that respective suction cup 37 engages the top sheet 3 (hereinafter referred to as sheet 3 1 ) in group 53, and is then raised to partly detach sheet 3 1 from group 53 ( Figure 6).
  • sheet 3 1 top sheet 3
  • member 34b With member 34a still in the operating position, the operating sequence described for member 34a is repeated for the other member 34 (hereinafter referred to as member 34b) so as to pick up a second sheet 3 (hereinafter referred to as sheet 3 2 ) in group 53.
  • suction cup 37 of member 34a is deactivated; sheet 3 1 drops on to and is supported by plate 36 of member 34b ( Figure 7); member 34a is moved into the rest position; and the above operating sequence is repeated alternately, once for member 34a and once for member 34b, to pick up all M sheets 3 in group 53 one at a time.
  • member 34b When the last sheet 3 in group 53 has been picked up, e.g. by member 34a, member 34b is moved into the rest position, repeats the above operating sequence without picking up any sheet 3, and is maintained in the operating position so as to be positioned beneath group 53; and member 34a is moved into the rest position so that member 34b supports all the sheets 3 in group 53.
  • member 25 With member 34b still in the operating position, member 25 is moved in directions 6 and 8 so that respective plate 26 is positioned beneath the bottom sheet 3 in group 53; and member 34b is moved into the rest position so that all the sheets 3 in group 53 drop on to and are supported by plate 26 ( Figure 8).
  • slide 30 is moved in direction 8 so that both members 33 release group 52, the sheets 3 of which drop on to and are supported by sheets 3 in group 53, i.e. by member 25.
  • slide 30 is moved in directions 6 and 8 to enable both members 33 to engage the last ream 2'; member 25 releases the last ream 2'; and slide 30 is moved in direction 8 to transfer the last ream 2' to input station 9 of the operating unit (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP01125525A 2000-10-26 2001-10-25 Procédé et dispositif pour prélever des rames de feuilles Withdrawn EP1201579A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000BO000621A ITBO20000621A1 (it) 2000-10-26 2000-10-26 Metodo e dispositivo per il prelievo di risme di fogli
ITBO000621 2000-10-26

Publications (2)

Publication Number Publication Date
EP1201579A2 true EP1201579A2 (fr) 2002-05-02
EP1201579A3 EP1201579A3 (fr) 2002-10-16

Family

ID=11438811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125525A Withdrawn EP1201579A3 (fr) 2000-10-26 2001-10-25 Procédé et dispositif pour prélever des rames de feuilles

Country Status (2)

Country Link
EP (1) EP1201579A3 (fr)
IT (1) ITBO20000621A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484270A2 (fr) * 2001-06-08 2004-12-08 bielomatik Leuze GmbH + Co KG Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets
ITPI20130097A1 (it) * 2013-12-03 2015-06-04 Giuseppe Mirabella Pinza composita da montare su robot antropomorfo adatta a prelevare e movimentare mazzette di fogli grande formato di cartone ondulato e simili
CN110328892A (zh) * 2019-06-18 2019-10-15 深海弈智京山智能科技有限公司 一种上纸控制系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955854A (en) * 1988-08-01 1990-09-11 Oscar Roth Apparatus for subdividing stacks of sheets of paper and the like
DE4409489A1 (de) * 1994-03-19 1995-09-21 Womako Masch Konstr Verfahren und Vorrichtung zum Aufteilen eines Papierstapels
EP0694489A1 (fr) * 1994-07-29 1996-01-31 WRAPMATIC S.p.A. Dispositif pour le prélevement d'une partie d'une pile de feuilles de grande dimension

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955854A (en) * 1988-08-01 1990-09-11 Oscar Roth Apparatus for subdividing stacks of sheets of paper and the like
DE4409489A1 (de) * 1994-03-19 1995-09-21 Womako Masch Konstr Verfahren und Vorrichtung zum Aufteilen eines Papierstapels
EP0694489A1 (fr) * 1994-07-29 1996-01-31 WRAPMATIC S.p.A. Dispositif pour le prélevement d'une partie d'une pile de feuilles de grande dimension

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484270A2 (fr) * 2001-06-08 2004-12-08 bielomatik Leuze GmbH + Co KG Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets
EP1484270A3 (fr) * 2001-06-08 2005-01-05 bielomatik Leuze GmbH + Co KG Dispositif et procédé de traitement ultérieur d'une rame résiduelle avec ménagement et sans déchets
ITPI20130097A1 (it) * 2013-12-03 2015-06-04 Giuseppe Mirabella Pinza composita da montare su robot antropomorfo adatta a prelevare e movimentare mazzette di fogli grande formato di cartone ondulato e simili
CN110328892A (zh) * 2019-06-18 2019-10-15 深海弈智京山智能科技有限公司 一种上纸控制系统

Also Published As

Publication number Publication date
ITBO20000621A0 (it) 2000-10-26
ITBO20000621A1 (it) 2002-04-26
EP1201579A3 (fr) 2002-10-16

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