EP0890535B1 - Dispositif d'alimentation de feuilles pour manipuler et alimenter des feuilles individuellement - Google Patents

Dispositif d'alimentation de feuilles pour manipuler et alimenter des feuilles individuellement Download PDF

Info

Publication number
EP0890535B1
EP0890535B1 EP98202275A EP98202275A EP0890535B1 EP 0890535 B1 EP0890535 B1 EP 0890535B1 EP 98202275 A EP98202275 A EP 98202275A EP 98202275 A EP98202275 A EP 98202275A EP 0890535 B1 EP0890535 B1 EP 0890535B1
Authority
EP
European Patent Office
Prior art keywords
sheet feeder
feeder device
suction
stack
elements
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
EP98202275A
Other languages
German (de)
English (en)
Other versions
EP0890535A1 (fr
Inventor
Alvaro Rossi
Marco Rossi
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.)
MAIERON NATALINA
Rossi Sabrina
ROSSI, ALVARO
ROSSI, MARCO
Original Assignee
Maieron Natalia
Rossi Alvaro
Rossi Marco
Rossi Sabrina
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 Maieron Natalia, Rossi Alvaro, Rossi Marco, Rossi Sabrina filed Critical Maieron Natalia
Publication of EP0890535A1 publication Critical patent/EP0890535A1/fr
Application granted granted Critical
Publication of EP0890535B1 publication Critical patent/EP0890535B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear 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
    • B65H3/36—Separating articles from piles by separators moved in special paths, e.g. enclosing an area
    • B65H3/38—Separating articles from piles by separators moved in special paths, e.g. enclosing an area the paths not enclosing an area

Definitions

  • This invention refers to a sheet feeder device for the single handling and feeding of stacked sheets.
  • the industry processing paper in sheet form such as for instance the plastifying or printing industry, needs to be capable of handling large volumes of sheets.
  • These sheets are generally arranged in a stack and associated with the printing machine, the plastifying machine etc., to perform the work required by the particular treating process.
  • the sheets must therefore be picked up from the stack one at a time and conveyed to the next processing unit.
  • grabbing devices for a single sheet on top of a stack are known and generally designated as sheet feeders.
  • These sheet feeder devices are provided with arms which generally pick-up the single sheet by suction grabbing elements to lift it from the stack and shift it for example to a downstream processing or simply receiving unit.
  • the arm or arms move the relative suction grabbing devices toward the face of the sheet to be grabbed and transferred, using a vacuum or similar effect.
  • Some blowing nozzles are simultaneously activated to favor the detachment of the sheet from the underlying sheets in the stack, to be followed immediately by shifting the grabbed sheet toward the next unit.
  • DE-A-1 786 117 discloses a sheet feeder device according to the preamble of claim 1.
  • the purpose of the present invention is to achieve a sheet feeder device for the single handling and feeding of stacked sheets capable of overcoming the technical and economic problems generated by the known, particularly complex controlling and moving structure.
  • a further purpose is to produce a sheet feeder device for the single handling and feeding of stacked sheets, capable of handling them without error, with an absolutely uniform action of grabbing a single sheet from the stack and performing a fixed stroke, and also capable of operating at high speeds.
  • An alternative embodiment also provides for a further set of suction elements which are rigidly connected to said supporting structure and cooperate with said at least one set of oscillating suction elements.
  • Said first recessed cam assembly preferably includes an idle roller rigidly connected to said oscillating arm which fits into a cam-shaped recess carved out in a plate pulled into a rotating motion by the said positive mechanical transmission.
  • Such a device is particularly simple, non-vibrating and also capable of operating at high speeds.
  • a sheet feeder device for the single handling and feeding of stacked sheets built according to the invention is shown and designated as a whole by the numeral 11.
  • This device 11 comprises a box-like supporting structure 12 holding two groups of grabbing elements which act on the upper face of a sheet 13 to be picked up and transferred, placed at the top of a stack of sheets 14.
  • These grabbing elements generally comprise suction elements 15 and 16 performing this function by a vacuum or similar principle.
  • Some internal telescopic suction-cups are held in a housing 17 and activated to emerge from the same when a vacuum is created in the interior. Once these suction cups reach the sheet 13, the sheet grabbing motion is performed and the suction cups are simultaneously lifted.
  • a first set of grabbing elements comprises two suction elements 15 which are rigidly connected to the vertical shoulders 18 of the supporting structure 12.
  • the second set of grabbing elements comprises the suction elements 16 rigidly connected to the two rods 19 and carried by an arm 20 oscillating between at least one pair of extreme positions.
  • the second set of suction elements 16 can in fact oscillate between a grabbing position on top of the stack 14 and a releasing position of the single sheet 13, moved forward toward a next sheet processing or simply receiving unit.
  • Both the suction elements 15 and the suction elements 16 can be fitted with blowing nozzles 21 actuated to favor the detachment of the sheet 13 from the underlying sheets of the stack 14 during the picking-up process. Provision is also made for a cross beam 40 which supports some adjusting elements 41 set vertically before the stack 14.
  • the arm 20 is shaped to resemble an upturned U, hinged at the bottom of the U, placed at its top end, by shafts 22 to the shoulders 18 and oscillated by a first cam-equipped assembly.
  • a vertical branch 20a of this arm 20 is in fact free to rotate a roller 23 which fits into a cam-shaped recess 24 carved out in a plate 25, thus creating the first cam-equipped assembly.
  • the plate 25 is in turn rigidly connected to a shaft 26 supported at its extremities by bearings 27 provided inside the shoulders 18.
  • the shaft 26 carries a further plate 28, created for example by extending the plate 25 and having a smaller diameter, which presents a cam-shaped peripheral surface 29.
  • the latter surface 29 engages with a roller 30 supported on a lever 32 and free to rotate in 31, so as to create a second cam-equipped assembly.
  • This lever 32 is at one end hinged by a pin 33 to the shoulders 18, while its other end carries a rod 34, arranged as a bracket and turned toward the bottom.
  • This rod 34 rests on the stack 14 noting the presence of the sheets and possibly lifting of the stack, if any sheets are found missing at the height required for their pick-up.
  • the plates 25 and 28, or alternatively the only plate-type element identifying them are provided on the shaft 26, which carries, in its section close to one of the shoulders 18, a keyed-on first gear 35 that forms part of the group controlling the rotation of the same shaft 26.
  • This control or positive mechanical transmission group comprises a further idle intermediate gear 36 and a third gear 37 provided on a shaft 38 which draws its motion from an external motorized device, not shown.
  • the latter shaft 38 at its end opposite to that connecting to the motorized device, commands an air distributing and vacuum-actuating complex shown by the number 39, which determines the air emission and aspiration phases on both the suction cups 15, 16 and the blowing nozzles 21.
  • a sheet feeder device while acting and operating like a traditional sheet feeder device, solves all the technical problems typical of the complex and delicate structures of the device heretofore known.
  • This mechanical engagement also allows to achieve particularly high speeds of picking up and shifting the sheets, which cannot be reliably performed by the complex devices already known.
  • the air and vacuum actuating complex designated by the number 39 which determines the air emission and aspiration phases and needs to be connected to an appropriate pump, can simply be replaced by a venturimeter.
  • FIGS 3 and 4 clearly show the operation of the exemplified device according to the present invention.
  • the actuating of the two suction elements 15 causes the grabbing of a sheet 13 and its lifting when the suction-cups 15 are returned toward the top into their housings 17.
  • This motion evolves from the dashed and pointed position of the fixed suction cup 15 shown in Figure 3 to the lifted position pictured as a solid line, in which the sheet 13 shown as dashes and points is grabbed and picked-up by the same fixed suction-cup 15.
  • This phase is also aided by the nozzles 21, which assist the separation of the sheet 13 from the underlying stack 14.
  • the second suction cups 16 are in this phase placed in the position of Figure 4 in which they have moved the former sheet 13 toward a downstream sheet processing or simply receiving unit (dashes and points in Figure 4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (6)

  1. Dispositif d'alimentation de feuille pour la manipulation de et l'alimentation individuelles en fouilles empilées comprenant une structure de support (12) maintonant au moins un ensemble d'éléments de préhension à aspiration (15, 16) qui agit sur la face supérieure d'une feuille (13) devant être prise et transférée, placée au sommet, d'une pile de feuilles (14), où au moins un ensemble d'éléments d'aspiration (16) peut osciller entre une position de préhension sur ladite pile et une position avant de dégagement, où au moins un ensemble d'éléments d'aspiration (16) est placé en dessous d'un bras oscillant (20) pivotant à son extrémité supérieure (en 22) sur les épaulements (18) de ladite structure (12), ladite oscillation étant déterminée par un premier ensemble évidé de cames (23, 24) qui tire son mouvement d'un dispositif motorisé extérieur en utilisant une transmission mécanique positive (35 - 37) ;
       caractérisé en ce que ledit premier ensemble évidé de cames comprend une poulie folle (23) relié de manière rigide audit bras oscillant (20) ct inséré dans une cavité en forme de came (24) découpée dans une plaque (25) mise en rotation par ladite transmission mécanique positive (35-37),
       ledit premier ensemble évidé de cames étant relié de manière rigide dans son mouvement de rotation à un second ensemble de cames qui effectue le soulèvement et l'abaissement d'une tige (34) orientée vers le bas, qui repose sur ladite pile de feuilles (14) et provoque le soulèvement de ladite pile si une feuille quelconque manque au niveau de la hauteur requise pour leur préhension,
       ledit second ensemble de cames comprend une plaque (28) possédant une surface périphérique (29) en forme de came en prise avec un rouleau (30) supporté sur un levier (32) et libre de tourner (en 31), à son tour relié de manière rigide à une première extrémité à un arbre (33) tournant par rapport à ladite structure (12), et transportant ladite tige (34) sur son autre extrémité.
  2. Dispositif d'alimentation de feuille selon la revendication 1, caractérisé en ce qu'il fournit un ensemble supplémentaire d'éléments d'aspiration (15) fixés de manière rigide à ladite structure de support (12),
  3. Dispositif d'alimentation de feuille selon la revendication 1, caractérisé en ce que ledit premier et ledit second ensembles de cames sont fabriqués d'un soûl tenant avec leurs plaques (25) et (28).
  4. Dispositif d'alimentation de feuille selon la revendication 1, caractérisé en ce que ledit bras oscillant (20) articulé à son extrémité supérieure (en 22) aux épaulements (18) a la forme d'un U renversé.
  5. Dispositif d'alimentation de feuille selon la revendication 1 ou 2, caractérisé en ce que lesdits éléments de préhension à aspiration (15, 16) sont reliés à et actionnés par un complexe générateur de vide et distributeur d'air (39).
  6. Dispositif d'alimentation de feuille selon la revendication 1 ou 2, caractérisé en ce que lesdits éléments de préhension à aspiration (15, 16) sont reliés à et actionnés par un compteur de Venturi.
EP98202275A 1997-07-08 1998-07-07 Dispositif d'alimentation de feuilles pour manipuler et alimenter des feuilles individuellement Expired - Lifetime EP0890535B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI971618 1997-07-08
IT97MI001618A IT1293588B1 (it) 1997-07-08 1997-07-08 Dispositivo mettifoglio per la manipolazione e alimentazione singola di fogli impilati

Publications (2)

Publication Number Publication Date
EP0890535A1 EP0890535A1 (fr) 1999-01-13
EP0890535B1 true EP0890535B1 (fr) 2002-09-04

Family

ID=11377520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98202275A Expired - Lifetime EP0890535B1 (fr) 1997-07-08 1998-07-07 Dispositif d'alimentation de feuilles pour manipuler et alimenter des feuilles individuellement

Country Status (4)

Country Link
EP (1) EP0890535B1 (fr)
DE (1) DE69807607T8 (fr)
ES (1) ES2181119T3 (fr)
IT (1) IT1293588B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116969218B (zh) * 2023-09-15 2023-12-26 江苏金典高科数码有限公司 纸张输送装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786117A1 (de) * 1968-08-20 1971-11-18 Adamovske Strojirny Np Vorrichtung zum Antrieb einer Bogenzufuehrvorrichtung,insbesondere fuer Druckmaschinen
JPS517404B1 (fr) * 1971-06-30 1976-03-08
DE4006635A1 (de) * 1990-03-03 1991-09-05 Georg Binnen Schleppdueseneinrichtung fuer schnellaufende bogenanleger
IT1251227B (it) * 1991-08-20 1995-05-05 Franco Pezzini Dispositivo mettifoglio per il trasferimento di fogli da una pila ad un piano ricevitore o di lavorazione

Also Published As

Publication number Publication date
EP0890535A1 (fr) 1999-01-13
ITMI971618A1 (it) 1999-01-08
ITMI971618A0 (fr) 1997-07-08
ES2181119T3 (es) 2003-02-16
DE69807607T2 (de) 2003-06-05
DE69807607D1 (de) 2002-10-10
IT1293588B1 (it) 1999-03-08
DE69807607T8 (de) 2004-07-08

Similar Documents

Publication Publication Date Title
US4830355A (en) Sheet transfer apparatus for rotary printing presses
EP0639519A1 (fr) Dispositif pour séparer du matériel en forme de plaques
US3586314A (en) Sheet feeding device
JP3968048B2 (ja) ブランクのスタックを拾い上げるための方法及び装置
EP0890535B1 (fr) Dispositif d'alimentation de feuilles pour manipuler et alimenter des feuilles individuellement
JP3689179B2 (ja) 給紙装置における持上げ吸い口の周期的昇降運動のための装置
CS253506B1 (en) Loading equipment
US5120295A (en) Apparatus for erecting tubular carton blanks
US4129294A (en) Sheet-feeding mechanism acting on front corner regions of a sheet
JPH0245122Y2 (fr)
GB2096577A (en) Adjustably mounted suction cup for separating sheets from pile
US5029836A (en) Sheet register control for printing machines
CN201109227Y (zh) 全自动台板移动印刷机
CN216635909U (zh) 一种证书翻页打印装置
JPH1135150A (ja) 板ガラス入込み装置
JPH04223941A (ja) 枚葉紙給紙台のサクションヘッドに分離サッカーのサクションノズルをロックする装置
US2222459A (en) Sheet separating and feeding machine
CN216761172U (zh) 丝网印刷机用的承印物定位装置及丝网印刷机
FR2640947A1 (fr)
US2642282A (en) Mechanism for feeding sheets to rotary drum machines
JPH02169461A (ja) 印刷機の排紙制動装置
JP2738493B2 (ja) ガラス板の移載装置
US2634125A (en) Apparatus for separating sheets, envelopes, and the like
JPH04223942A (ja) 枚葉紙給紙台のサクションヘッドに分離サッカーのサクションノズルをロックする装置
EP0642998A2 (fr) Unité pour la fabrication de produits en verre plat

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES FR GB LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990421

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROSSI, SABRINA

Owner name: ROSSI, MARCO

Owner name: ROSSI, ALVARO

Owner name: MAIERON, NATALINA

AKX Designation fees paid

Free format text: BE CH DE ES FR GB LI

17Q First examination report despatched

Effective date: 20010504

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020904

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69807607

Country of ref document: DE

Date of ref document: 20021010

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: AMMANN PATENTANWAELTE AG BERN

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2181119

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030605

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130703

Year of fee payment: 16

Ref country code: CH

Payment date: 20130712

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130703

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20140611

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140708

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69807607

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150203

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69807607

Country of ref document: DE

Effective date: 20150203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140707

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20160826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150708