EP0732282B1 - Méthode et appareil pour transférer des liasses de feuilles - Google Patents

Méthode et appareil pour transférer des liasses de feuilles Download PDF

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Publication number
EP0732282B1
EP0732282B1 EP19960850047 EP96850047A EP0732282B1 EP 0732282 B1 EP0732282 B1 EP 0732282B1 EP 19960850047 EP19960850047 EP 19960850047 EP 96850047 A EP96850047 A EP 96850047A EP 0732282 B1 EP0732282 B1 EP 0732282B1
Authority
EP
European Patent Office
Prior art keywords
file
treatment station
sheets
rolling
edge
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
EP19960850047
Other languages
German (de)
English (en)
Other versions
EP0732282A3 (fr
EP0732282A2 (fr
Inventor
Ulf Rosen
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.)
Samhall AB
Original Assignee
Samhall AB
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 Samhall AB filed Critical Samhall AB
Publication of EP0732282A2 publication Critical patent/EP0732282A2/fr
Publication of EP0732282A3 publication Critical patent/EP0732282A3/fr
Application granted granted Critical
Publication of EP0732282B1 publication Critical patent/EP0732282B1/fr
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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60—Loosening articles in piles

Definitions

  • the present invention relates to a method of and an apparatus for transferring a file of sheets of paper, plastic or like material from the top of a sheet stack to a treatment station, for instance to a vibratory table.
  • the sheets may measure 1400 x 1000 m. This means that the file can weigh up to 25-30 kg, depending on the size of the sheets and on the thickness of the file. Three to four files form a cutting file, the weight of which may be of the order of 70-75 kg. In order to cut the sheets correctly and to loosen any sheets that may have fused together, it is necessary to blow air between the sheets before placing the sheets on the vibratory table.
  • a method of and an apparatus for transferring a file of sheets uppermost in a sheet stack to a treatment station comprising the steps of gripping one edge of the file and swinging the edge upwards-rearwards and rolling the file over a part of the upper surface of the stack and transferring said file to the treatment station have earlier been proposed in EP 0 098 385 A for instance.
  • this method is very complicated and consists of no fewer that eleven steps which means that the corresponding apparatus will be very expensive and functional sensitive. It also shows that the problem in question is great.
  • the object of the present invention is to solve the aforesaid problem and to provide a method and apparatus for transferring a sheet file from a sheet stack to a treatment station, including loosening of fused sheets and separation thereof by air. This object is achieved with an inventive method and inventive apparatus having the characteristic features set forth in claims 1 and 7.
  • Shown in the drawing is a stack of sheets 1 from which a file of sheets is to be loosened and transferred to a treatment station, for instance to a vibratory table.
  • a treatment station for instance to a vibratory table.
  • at least one clamping device 3 which is mounted on a substantially vertical operating arm 4 for pivotal movement through 180° about a horizontal axle 5.
  • the operating arm 4 can be moved reciprocatingly in the horizontal plane with the aid of a servo-device.
  • the clamping device 3 is provided with a nozzle for blowing air between the sheets.
  • one edge 6 of the file 2 is gripped and swung upwardly-rearwardly through 180° and drawn in the direction of the arrow 7 while rolling the file 2 over a part of the upper surface of the stack 1.
  • the operating arm 4 is then returned and the file 2 rolled in the opposite direction, back over the upper surface of the stack.
  • air is blown in between the sheets from the sides thereof so as to air-separate all sheets in the file.
  • the opposing edge 10 of the file may optionally be clamped firmly during this return movement.
  • the folding device intended to hold the sheets firmly at the opposing edge 10 is symbolized by the weight 8 in Fig. 2.
  • the operating arm 4 is now moved in the direction of the arrow 9.
  • the gripping device is operated with servo-assistance, wherein the operator grips a control lever on the operating arm 4 and moves it in the desired direction.
  • the apparatus may be suspended either from a swivel crane, an overhead crane, or may run in tracks.
  • the described movement generates shearing between the sheets in the file 2. As the upper outwardly sheared part of the file is held firmly and the rolling movement is partly repeated, the sheets will separate and allow air to flow therebetween.
  • the file can either be drawn directly to the treatment station or can be turned by again rolling over the file and then drawn over to the treatment station. Air is suitably blown in beneath the file 2, in order to reduce friction.

Landscapes

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

Claims (8)

  1. Procédé pour transférer un dossier (2) de feuilles de papier plastique ou similaire situé le plus en haut dans une pile de feuilles (1) vers une station de traitement, par exemple une table vibrante comprenant les étapes de saisir un bord (6) du dossier (2) et de faire pivoter le bord d'avant en arrière sur 180° et de rouler le dossier (2) sur une partie de la surface supérieure de la pile (1), et ensuite de dérouler le dossier (2) et transférer ledit dossier à la station de traitement.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on alimente de l'air à partir des côtés du dossier pendant le mouvement de roulement en retour.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on tient fermement le bord opposé (10) du dossier (2) pendant le mouvement de roulement en retour.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on fait passer le dossier (2) directement à la station de traitement après avoir déroulé le dossier.
  5. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on fait tourner le dossier (2) en le roulant à nouveau avant de faire passer le dossier à la station de traitement.
  6. Procédé selon la revendication 4 ou 5, caractérisé en ce que l'on souffle de l'air par en dessous du dossier (2) lorsqu'il est transféré vers la station de traitement.
  7. Appareil pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 6, dans lequel au moins un dispositif de serrage (3) est monté sur un bras travaillant généralement verticalement (4) pour un mouvement de pivotement sur 180° autour d'un axe horizontal (5) et fonctionne pour saisir un bord (6) d'un dossier (2), dans lequel ledit bras (4) est servo-assisté pour un mouvement dans un plan horizontal.
  8. Appareil selon la revendication 7, caractérisé en ce que le dispositif de serrage (3) comprend des buses d'air à travers lesquelles de l'air est soufflé entre les feuilles.
EP19960850047 1995-03-13 1996-03-11 Méthode et appareil pour transférer des liasses de feuilles Expired - Lifetime EP0732282B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9500884A SE504109C2 (sv) 1995-03-13 1995-03-13 Sätt och anordning för överföring av arklägg
SE9500884 1995-03-13

Publications (3)

Publication Number Publication Date
EP0732282A2 EP0732282A2 (fr) 1996-09-18
EP0732282A3 EP0732282A3 (fr) 1997-09-03
EP0732282B1 true EP0732282B1 (fr) 1999-08-04

Family

ID=20397523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960850047 Expired - Lifetime EP0732282B1 (fr) 1995-03-13 1996-03-11 Méthode et appareil pour transférer des liasses de feuilles

Country Status (3)

Country Link
EP (1) EP0732282B1 (fr)
DE (1) DE69603527T2 (fr)
SE (1) SE504109C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5865385B2 (ja) * 2010-11-22 2016-02-17 インダストリアル ロボット オートメイション エイピーエスＩｎｄｕｓｔｒｉａｌ Ｒｏｂｏｔ Ａｕｔｏｍａｔｉｏｎ Ａｐｓ 紙シートのスタックの自動取扱及び通気

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220917C2 (de) * 1982-06-03 1984-10-18 Gerhard Zöll Maschinenbau, 6238 Hofheim Verfahren zum Abteilen von Teilstapeln von einem Gesamtstapel und zum Ablegen jedes Teilstapels in schuppenförmiger Lage
DE3933626C1 (fr) * 1989-10-07 1991-03-14 Wolfgang 6238 Hofheim De Mohr
EP0466313B1 (fr) * 1990-06-01 1994-12-21 De La Rue Systems Limited Methode de détection de feuilles dans une pile

Also Published As

Publication number Publication date
EP0732282A3 (fr) 1997-09-03
DE69603527D1 (de) 1999-09-09
SE9500884L (sv) 1996-09-14
SE504109C2 (sv) 1996-11-11
EP0732282A2 (fr) 1996-09-18
DE69603527T2 (de) 2000-03-16
SE9500884D0 (sv) 1995-03-13

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