EP0152214A2 - Bogentrennvorrichtung für Stanzmaschinen - Google Patents

Bogentrennvorrichtung für Stanzmaschinen Download PDF

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Publication number
EP0152214A2
EP0152214A2 EP85300529A EP85300529A EP0152214A2 EP 0152214 A2 EP0152214 A2 EP 0152214A2 EP 85300529 A EP85300529 A EP 85300529A EP 85300529 A EP85300529 A EP 85300529A EP 0152214 A2 EP0152214 A2 EP 0152214A2
Authority
EP
European Patent Office
Prior art keywords
grid
sheet
blanks
die
separating device
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Withdrawn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
EP85300529A
Other languages
English (en)
French (fr)
Inventor
Olindo Iacobelli
Guy Queruel
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.)
Mead Corp
Original Assignee
Mead Corp
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 Mead Corp filed Critical Mead Corp
Publication of EP0152214A2 publication Critical patent/EP0152214A2/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out

Definitions

  • This invention relates to a blank separating device for a die cutting machine:
  • the device is suitable for fitment into existing die-cutting machines thereby adding the capability to such a machine of separating individual blanks from a sheet without otherwise altering the die-cutter.
  • Die-cutting machines for producing carton blanks perform an ejecting function, that is, an operation whereby article receiving apertures, finger holes and other apertures are punched out of a die-cut blank, but relatively few die-cutting machines perform a scrapping operation that is, an operation whereby individual blanks are separated from a sheet passing through the machine, i,e nicks between adjacent blanks are broken and nicks between blanks and sheet margins are broken and margins removed.
  • the front margin and the blanks of each sheet remain connected together by nicks; the front margin continues to be gripped by clamps, mounted on flight bars that are connected to chains, which pull each sheet horizontally through the machine, from station-to-station.
  • the sheet (ejected and partly scrapped) is then pulled into further station of the machine where the front-margin can be cut off and evacuated, and the blanks are then dropped onto a pallet, still connected by nicks.
  • a die-cutting machine having an automatic scrapping facility is-known in which the scrapping is performed by stamping the sheet between an upper die (embossed according to the shape of individual blanks) and a lower, static wire-grid through which the blanks are forced.
  • the stamping action of a blank-separating device according to the present invention is initiated by a signal from a cam mounted on the main shaft of the die-cutter, ensuring that the reciprocal movement takes place exactly when the sheet is in position above the static grid.
  • the device is thereby synchronised with the die cutter.
  • the device is driven by its own pneumatic system, so that the speed and power of the stamping action can be set independently, so long as the number of reciprocal strokes follows the pace of the die-cutter, and remains constant, even if the die-cutting machine slows down.
  • the device can be fitted onto existing die-cutting machines, adding the capability to separate blanks (and thereby eliminating costly manual scrapping) without otherwise altering the die-cutter.
  • the device fits into a conventional die-cutter, and the resulting combination is a shorter machine than a machine incorporating an integrated blank-separation, and reduced cost.
  • the device Since the device is actuated independently, by its own pneumatic system, it can be finely adjusted and function optimally under all circumstances irrespective of the speed of the die-cutting machine.
  • This invention provides a blank separating device for a die-cutting machine which device comprises a static grid for location beneath the path of ⁇ movement of a sheet from which blanks are to be separated and pusher means for location above said path of movement to push the sheet through the grid at predetermined intervals thereby to separate blanks from the sheet, characterised in that the static grid comprises downwardly extending guide elements to guide the separated blanks from the grid into stacks.
  • the device comprises a reciprocal pusher 10 and a static grid 12.
  • the reciprocal pusher 10 is mounted above the path of movement of a sheet 's' of carton blanks to be separated and comprises a pair of spaced parallel bars 14,16 which are vertically reciprocated by means of pneumatic plungers 18,20 respectively.
  • the static grid 12 is located below the path of movement of the sheet 's' of blanks to be separated and comprises a longitudinal downwardly extending central blade 22, longitudinal side blades 22a and 22b and a plurality of transversely spaced wires 24.
  • the blade and wires are spaced according to the lines of separation between the blanks.
  • the parallel pusher bars 14, 16 are positioned so as to straddle the central blade 22 of the grid.
  • a series of spaced flat strips 26 hand downwardly from each of the static wires 24.
  • the central and side longitudinal blades 22 and the wires cut the sheet in predetermined locations to separate individual blanks from one another as the reciprocal bars stamp downwardly to push the sheet through the static grid.
  • the longitudinal blades and flat strips together provide guide elements to guide the separated blanks downwardly so that they do not overlap one another during stacking, the longitudinal blades providing a longitudinal guide and the flat strips providing transverse guides.
  • the stamping action of the blank-separating device is initiated by a signal from a cam mounted on the main shaft of the die-cutter, ensuring that the reciprocal movement takes place exactly when the sheet is in position above the static grid.
  • the device is thereby synchronised with the die-cutter.
  • the device is driven by its own pneumatic system, so that the speed and power of the stamping device can be set independently, so long as the number of reciprocal strokes follows the pace of the die-cutter, and remains constant, even if the die-cutting machine slows down.
  • the device can be fitted onto existing die-cutting machines, adding the capability to such machines of separating carton blanks (and thereby eliminating costly manual scrapping) without otherwise altering the die-cutter.
  • the device fits into a conventional die-cutter, and the resulting combination is a shorter machine than a machine incorporating an integrated blank-separation, and reduced cost.
  • the device Since the device is actuated independently, by its own pneumatic system, it can be finely adjusted and function optimally under all circumstances irrespective of the speed of the die-cutting machine.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP85300529A 1984-01-26 1985-01-25 Bogentrennvorrichtung für Stanzmaschinen Withdrawn EP0152214A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848401994A GB8401994D0 (en) 1984-01-26 1984-01-26 Blank separating device
GB8401994 1984-01-26

Publications (1)

Publication Number Publication Date
EP0152214A2 true EP0152214A2 (de) 1985-08-21

Family

ID=10555543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85300529A Withdrawn EP0152214A2 (de) 1984-01-26 1985-01-25 Bogentrennvorrichtung für Stanzmaschinen

Country Status (3)

Country Link
EP (1) EP0152214A2 (de)
CA (1) CA1232193A (de)
GB (1) GB8401994D0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343338A1 (de) * 1988-03-22 1989-11-29 Jowetts Limited Bogentrennvorrichtung für Stanzmaschinen
WO1990006838A1 (fr) * 1988-12-20 1990-06-28 Bobst S.A. Dispositif pour le decoupage et la separation de feuilles en papier, carton ou matieres semblables
WO2002036471A2 (en) * 2000-11-01 2002-05-10 Joseph Mcardle (Exporting) Limited A sliding jogger and a blanking tool incorporating such jogger
CN100425516C (zh) * 2006-01-26 2008-10-15 夏碎娒 切纸机
GB2474524A (en) * 2009-10-15 2011-04-20 Zaklad Produkcji Opakowan Karton Pak S A A tool for separating cardboard blanks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343338A1 (de) * 1988-03-22 1989-11-29 Jowetts Limited Bogentrennvorrichtung für Stanzmaschinen
WO1990006838A1 (fr) * 1988-12-20 1990-06-28 Bobst S.A. Dispositif pour le decoupage et la separation de feuilles en papier, carton ou matieres semblables
WO2002036471A2 (en) * 2000-11-01 2002-05-10 Joseph Mcardle (Exporting) Limited A sliding jogger and a blanking tool incorporating such jogger
WO2002036471A3 (en) * 2000-11-01 2002-06-27 Mcardle Ltd Jospeh A sliding jogger and a blanking tool incorporating such jogger
CN100425516C (zh) * 2006-01-26 2008-10-15 夏碎娒 切纸机
GB2474524A (en) * 2009-10-15 2011-04-20 Zaklad Produkcji Opakowan Karton Pak S A A tool for separating cardboard blanks
EP2311610A1 (de) 2009-10-15 2011-04-20 Zaklad Produkcji Opakowan Karton-Pak S.A. Werkzeug zum Trennen von Kartonblättern
GB2474524B (en) * 2009-10-15 2012-03-14 Zaklad Produkcji Opakowan Karton Pak S A A tool for separating cardboard blanks

Also Published As

Publication number Publication date
GB8401994D0 (en) 1984-02-29
CA1232193A (en) 1988-02-02

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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

Designated state(s): BE DE FR GB IT LU NL

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870803

R18D Application deemed to be withdrawn (corrected)

Effective date: 19870203

RIN1 Information on inventor provided before grant (corrected)

Inventor name: IACOBELLI, OLINDO

Inventor name: QUERUEL, GUY