EP0123106A2 - Procédé et dispositif pour enlever une plaque de tôle d'un fardeau de tôle - Google Patents

Procédé et dispositif pour enlever une plaque de tôle d'un fardeau de tôle Download PDF

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Publication number
EP0123106A2
EP0123106A2 EP84102829A EP84102829A EP0123106A2 EP 0123106 A2 EP0123106 A2 EP 0123106A2 EP 84102829 A EP84102829 A EP 84102829A EP 84102829 A EP84102829 A EP 84102829A EP 0123106 A2 EP0123106 A2 EP 0123106A2
Authority
EP
European Patent Office
Prior art keywords
board
sheet metal
area
stack
sheet
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.)
Ceased
Application number
EP84102829A
Other languages
German (de)
English (en)
Other versions
EP0123106A3 (fr
Inventor
Egon Stiefel
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.)
Blanco GmbH and Co KG
Original Assignee
Blanco GmbH and Co KG
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 Blanco GmbH and Co KG filed Critical Blanco GmbH and Co KG
Publication of EP0123106A2 publication Critical patent/EP0123106A2/fr
Publication of EP0123106A3 publication Critical patent/EP0123106A3/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a 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
    • 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

Definitions

  • a known device for removing uncoated sheet metal blanks from a stack of blanks has an approximately horizontally extending and vertically up and down movable support arm, at the front end of which several cantilevers are attached, on which there are vacuum suction cups which can be moved up and down vertically.
  • a hold-down is attached to the underside of the front support arm end, which can be pressed against a central region of an upper board to be removed from a stack of boards when the support arm is lowered and has a convex, approximately circular arc-shaped contour at the bottom.
  • the vacuum cups are arranged so that they are on lower the corners of the board to be removed so that they can be sucked into the board.
  • the invention was therefore based on the object of developing a simple method for separating sheet metal boards with certainty, so that boards coated with drawing lacquer can also be easily removed individually from a board stack.
  • a method for A b-take a sheet metal blank of a blank stack in which recorded the abddyde board at at least two places and then first partially lifted to overcome the adhesion forces between two mutually adjacent boards P latin stack and is finally taken as a whole, can be
  • this object is achieved in that the temperature of a region of the circuit board to be removed, which region lies between two fixing points, changes, preferably is increased, before the circuit board is removed. It has been shown that sheet metal plates coated with drawing lacquer can also be easily separated as a result.
  • the device known above which has a support that can be moved up and down, on which a hold-down devices that can be pressed against a central area of the board to be removed, and a plurality of sheet metal tightening elements that can be placed against edge areas, preferably corner areas, of the board, and according to the invention, this device is supplemented by at least one heat source arranged on the carrier, which can be positioned over an edge zone area of the board to be removed.
  • the carrier can be a relatively complex structure.
  • the sheet metal tightening elements can be designed, for example, as vacuum suction devices or magnets, and the heat source is preferably a gas burner such as a Bunsen or welding burner.
  • a g for verzelun s is then obtained when the heat source is directed to a platinum region located between two sheet metal suit elements, ie between two points at which the platinum sheet is held.
  • the sheet metal tightening elements can be moved back and forth relative to the carrier approximately perpendicular to the plane of the board, as in the known device.
  • a stack of boards 12 over which a support arm 14 extends; this can be lowered and raised by means not shown, and possibly pivoted to a work station.
  • a hold-down device 16 is attached to the underside of the front support arm end, which has an arcuate contour on its underside, so that it is pressed approximately against the center of the uppermost board 12a when the support arm 14 lowers in the direction of the board stack 12.
  • a number of brackets 20 are attached to the front end of the support arm 14, of which the foremost and rearmost each carry a fixedly mounted lifting cylinder 22, to the piston rod 22a of which a vacuum suction device 24 is attached. With the help of the lifting cylinder, these vacuum cups can be moved up and down in the vertical direction.
  • the middle arms 20 each carry a gas burner 28 which is based on a relatively small, is to be heated board region 30 between the two adjacent vacuum suction cups 24.
  • the gas burners 28 are connected to gas lines 40, the lifting cylinders 22 to pressure medium lines 42 and the vacuum cups 24 to vacuum lines 44; the negative pressure is applied to the suction cups via the piston rods 22a.
  • the support arm 14 is first lowered until the hold-down device 16 rests against the central region of the printed circuit board and presses this region against the stack of blanks.
  • the vacuum suction cups 24 attached to the downwardly extending piston rods 22a then bear against the four corner regions of the sheet metal plate 12a and suck themselves firmly onto them.
  • the circuit board regions 30 are heated by the gas burners 28, so that the top circuit board 12a warps between the vacuum suction cups 24.
  • the lifting cylinders 22 are switched on and controlled in such a way that the vacuum suction devices 24 are raised, if necessary lowered again and raised again, whereupon the support arm 14 together with the uppermost board 12a is raised.
  • the support arm 14 can then be pivoted about a vertical axis and the sheet metal plate 12a can be delivered to a work station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Laminated Bodies (AREA)
EP84102829A 1983-03-25 1984-03-15 Procédé et dispositif pour enlever une plaque de tôle d'un fardeau de tôle Ceased EP0123106A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3310990 1983-03-25
DE19833310990 DE3310990A1 (de) 1983-03-25 1983-03-25 Verfahren und vorrichtung zum abnehmen einer blechplatine von einem platinenstapel

Publications (2)

Publication Number Publication Date
EP0123106A2 true EP0123106A2 (fr) 1984-10-31
EP0123106A3 EP0123106A3 (fr) 1985-01-23

Family

ID=6194704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102829A Ceased EP0123106A3 (fr) 1983-03-25 1984-03-15 Procédé et dispositif pour enlever une plaque de tôle d'un fardeau de tôle

Country Status (3)

Country Link
EP (1) EP0123106A3 (fr)
DE (1) DE3310990A1 (fr)
FI (1) FI841174A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970008438A (ko) * 1995-07-21 1997-02-24 김광호 리드 프레임 분리 장치
US6468025B1 (en) * 1999-05-13 2002-10-22 Abb Inc. Blank separation method and apparatus
EP3665109B1 (fr) 2017-08-10 2022-01-12 Kongsberg Precision Cutting Systems Belgium BV Dispositif de levage sous vide
GB201712838D0 (en) 2017-08-10 2017-09-27 Wade Colin Maxwell Vacuum Lifter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650092A (en) * 1948-11-23 1953-08-25 Caspers Tin Plate Company Magnetic separator for sheet feeding apparatus
DE1627322B2 (de) * 1967-03-07 1972-10-19 Wurttembergische Metallwarenfabrik, 7340 Geishngen Vorrichtung zum entgraten flacher metallwerkstuecke
DE1502688B2 (de) * 1963-05-11 1975-01-02 Fried. Krupp Gmbh, 4300 Essen Selbsttätige Ausricht- und Entstapelungsvorrlchtung für Blechtafeln an Rundmesserscheren

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD31496A (fr) *

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650092A (en) * 1948-11-23 1953-08-25 Caspers Tin Plate Company Magnetic separator for sheet feeding apparatus
DE1502688B2 (de) * 1963-05-11 1975-01-02 Fried. Krupp Gmbh, 4300 Essen Selbsttätige Ausricht- und Entstapelungsvorrlchtung für Blechtafeln an Rundmesserscheren
DE1627322B2 (de) * 1967-03-07 1972-10-19 Wurttembergische Metallwarenfabrik, 7340 Geishngen Vorrichtung zum entgraten flacher metallwerkstuecke

Also Published As

Publication number Publication date
FI841174A0 (fi) 1984-03-23
DE3310990A1 (de) 1984-09-27
FI841174A (fi) 1984-09-26
EP0123106A3 (fr) 1985-01-23

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

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Effective date: 19860613

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Effective date: 19870416

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STIEFEL, EGON