EP0421114B1 - Fixation d'outil d'éjection, de séparation des poses ou outil similaire - Google Patents

Fixation d'outil d'éjection, de séparation des poses ou outil similaire Download PDF

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Publication number
EP0421114B1
EP0421114B1 EP90116328A EP90116328A EP0421114B1 EP 0421114 B1 EP0421114 B1 EP 0421114B1 EP 90116328 A EP90116328 A EP 90116328A EP 90116328 A EP90116328 A EP 90116328A EP 0421114 B1 EP0421114 B1 EP 0421114B1
Authority
EP
European Patent Office
Prior art keywords
tie bar
tool
guide
axis
regard
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
EP90116328A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0421114A1 (fr
Inventor
Marcel Yerly
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Priority to AT90116328T priority Critical patent/ATE99215T1/de
Publication of EP0421114A1 publication Critical patent/EP0421114A1/fr
Application granted granted Critical
Publication of EP0421114B1 publication Critical patent/EP0421114B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B26D2007/1872—Means for removing cut-out material or waste using breakaway pins
    • 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
    • B26D2007/189—Mounting blanking, stripping and break-out tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/329—Plural breakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9483—Adjustable
    • Y10T83/9486—Rectilinearly

Definitions

  • the present invention relates to a device for fixing an ejection tool, separation of blanks or the like, on the adjustable crosspieces of a station for ejecting waste or separating blanks in a sheet-working machine.
  • the fixing device of the kind defined in the preamble of claim 1, is known, for example, from patent DE-C-2815797.
  • a waste ejection station of a sheet-working machine for example a press for cutting cardboard sheets intended for packaging
  • a sheet-working machine for example a press for cutting cardboard sheets intended for packaging
  • the cut sheet is placed above an openwork plate whose various openings are located exactly below the cutouts made in the sheet. These cuts must be separated from the sheet, as they are not part of the finished product.
  • the cutouts are brought into contact with ejectors which have the function of acting on the cutout so as to detach it completely from the sheet and to push or eject it through the corresponding opening of the plate openwork.
  • the sheets generally contain a large number of wastes to be ejected and that, consequently, the upper and lower frames will be equipped with a corresponding number of ejection tools, sometimes up to a hundred or more. .
  • the fixing device does not constitute an assembly that can be easily mounted on the crosspieces because, the fact that the jaws can rotate independently of one another on the tie rod and, thus, do not have their parallel bearing surface at the crossbar guide surface, makes mounting difficult.
  • the screw forming the tie may be insufficiently screwed in the case of locking. In the event that the screw is inadvertently too unscrewed during the displacement operation, the jaws may escape from the crosspiece. The assembly / disassembly must be carried out almost necessarily using two hands.
  • the fixing device is at an angle to the longitudinal direction of the cross member.
  • vibrations will tend to straighten the device. This straightening will lead to a reduction in the tightening preload and, therefore, a fall of the device which can cause serious damage to the installation.
  • the proposed solution has the advantage of easily putting and maintaining each fixing device in the state capable of performing one of the three operations mentioned above.
  • the fixing device comprises a tie rod 6 in the form of a rod provided, at a first end, with a head 13.
  • a support 4 of the ejection device 5, 26 support coming up against in the direction of the head 13, a first guide in the form of a jaw 1 in pressure contact with the support 4, a second guide or jaw in the form of a jaw 2, a resilient element in the form of a resilient sleeve 8 and a washer 9 made of metal.
  • Clamping means 10 of the tie rod 6, mounted on the second end of the tie rod 6, are intended to push, with more or less force towards the head 13, all of the elements mounted to slide on the tie rod 6.
  • the head 13 of the pulling 6 penetrates inside a T-shaped groove 16 of the support 4, so as to allow a longitudinal and rotational movement of the support 4 relative to the jaw 1.
  • the jaw 1 and the jaw 2 are each provided with 'at least a first bearing surface 1a, 2a intended to come into contact with two longitudinal guides of the crossmember 3 movable on one of the two movable frames (not shown) of the ejection station.
  • the profile of the bearing surface 1a of the jaw 1 has the shape of a V.
  • the ejection tool consists of a hollow cylindrical body 5 in which engages, in free sliding, the rear part d 'an ejection needle 26.
  • the jaw 1 comprises an extension 1d oriented in the direction of the jaw 2.
  • the extension 1d is provided with an opening 1f to let pass the tie rod 6 in free sliding, and with a second surface d support 1e intended to come into contact with a second support surface 2e of the jaw 2.
  • the jaw 2 is provided with a guide pin 12 engaged with a groove 14 made in the extension 1d of the jaw 1 to prevent that the jaw 1 and the jaw 2 cannot turn on the tie rod 6 independently of one another.
  • the jaw 1 has, on its extension 1d, a third bearing surface 1g essentially parallel to the axis of the tie rod 6 and intended to come into contact with the longitudinal guide surface of the cross member 3.
  • the clamping means 10 of the tie rod 6 consist of a lever in the form of a rotary cam 10 whose axis of rotation 11 is fixedly mounted on the second end of the tie rod 6 and perpendicular to the axis of the latter.
  • the cam 10 is composed of two identical parts, parallel and symmetrically situated with respect to the axis of the tie rod 6.
  • the action surface of each cam part 10 is in contact with the washer 9 and comprises three successive rectilinear portions A, B, C connected together by rounded portions, and distant from the axis of rotation 11 by a length respectively L respectivement, L2, L3, with L1 ⁇ L2 ⁇ L3.
  • the cam 10 can be driven in rotation using a key 26, retractable or not, engaged with a groove 15 made in the cam 10.
  • the function of the cam 10 is to vary the contact pressure, on the one hand, between the various elements mounted to slide on the tie rod 6 and, on the other hand, between the bearing surfaces 1a, 2a, 1g of the jaw 1 and of the jaw 2 and the guide surfaces of the cross member 3, in order to allow the fixing device to carry out one of the three operations in question, namely assembly / disassembly, displacement or locking. From FIG. 1, the operation of the cam 10 is easy to understand. When the surface B is in contact with the washer 9, the elements in question are slightly in pressure against each other, to the point that a relative movement between them becomes possible. The surface B therefore corresponds to the displacement operation. When cam 10 is turned clockwise, the surface C will come into contact with the washer 9.
  • the resilient sleeve 8 facilitates the passage of the cam 10 from one position to another and performs any backlash.
  • the resilient sleeve 8 can be replaced by any other similar element, for example spring washers.
  • a compression spring 17 mounted on the tie rod 6 which tends to separate the jaw 1 and the jaw 2 from one another.
  • the head 13 of the tie rod 6 can be constituted by a nut engaged with a thread of the rod forming the tie rod 6 or any other element fixedly mounted, retractable or not, on the first end of the tie rod 6.
  • the cam 10 which serves as a lever can have its axis of rotation 11 perpendicular to the axis of the tie rod.
  • a kind of clamping lever other than that of the cam can be envisaged.
  • the fixing device described above in relation to the ejection tool, can be used in the case of fixing a pressing tool, a guide tool, a blanking tool or the like, in a waste ejection or blanking station.
  • the fastening device described above perfectly resolves the risk of a reduction in the pre-tensioning of the jaws on the crosspiece of the station in question, a reduction caused by mounting the device at an angle on the crosspiece, thanks to the resilient element 8 which allows a straightening of the device, while maintaining the prestressing at little close to its original value.
  • the resilient element 8 which allows a straightening of the device, while maintaining the prestressing at little close to its original value.

Landscapes

  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Knives (AREA)
  • Scissors And Nippers (AREA)
  • Clamps And Clips (AREA)
  • Coating Apparatus (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Automatic Assembly (AREA)
  • Details Of Cutting Devices (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Adornments (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
EP90116328A 1989-10-03 1990-08-25 Fixation d'outil d'éjection, de séparation des poses ou outil similaire Expired - Lifetime EP0421114B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90116328T ATE99215T1 (de) 1989-10-03 1990-08-25 Befestigung eines werkzeugs zum ausstossen oder abtrennen von teilen oder eines aehnlichen werkzeugs.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3605/89A CH681870A5 (enrdf_load_stackoverflow) 1989-10-03 1989-10-03
CH3605/89 1989-10-03

Publications (2)

Publication Number Publication Date
EP0421114A1 EP0421114A1 (fr) 1991-04-10
EP0421114B1 true EP0421114B1 (fr) 1993-12-29

Family

ID=4259584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116328A Expired - Lifetime EP0421114B1 (fr) 1989-10-03 1990-08-25 Fixation d'outil d'éjection, de séparation des poses ou outil similaire

Country Status (11)

Country Link
US (1) US5064110A (enrdf_load_stackoverflow)
EP (1) EP0421114B1 (enrdf_load_stackoverflow)
JP (1) JP2514745B2 (enrdf_load_stackoverflow)
AT (1) ATE99215T1 (enrdf_load_stackoverflow)
AU (1) AU625088B2 (enrdf_load_stackoverflow)
BR (1) BR9004933A (enrdf_load_stackoverflow)
CA (1) CA2026291C (enrdf_load_stackoverflow)
CH (1) CH681870A5 (enrdf_load_stackoverflow)
DE (1) DE69005575T2 (enrdf_load_stackoverflow)
DK (1) DK0421114T3 (enrdf_load_stackoverflow)
ES (1) ES2048380T3 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100192742A1 (en) * 2009-01-30 2010-08-05 Michigan Lasercut Stripping apparatus
PL2937190T3 (pl) 2014-04-25 2018-01-31 Mayr Melnhof Karton Ag Urządzenie do oddzielania użytków z urządzeniem uchwytowym oraz sposób mocowania co najmniej jednego narzędzia do oddzielania użytków
US10016803B2 (en) * 2014-05-09 2018-07-10 Honda Motor Co., Ltd. Blanking die and method of blanking sheet metal therewith

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1198186A (en) * 1915-04-26 1916-09-12 Walter A Brown Book-rack.
DE1149976B (de) * 1958-02-22 1963-06-06 Friedrich Schroeter Verfahren und Vorrichtung zum Ausbrechen der Abfaelle oder der Nutzen aus gestanzten Werkstuecken
US3432197A (en) * 1966-06-30 1969-03-11 Mc Donnell Douglas Corp Slider latch
US3459080A (en) * 1966-12-12 1969-08-05 Harris Intertype Corp Rotary stripping unit
CH490943A (fr) * 1968-05-20 1970-05-31 Bobst Fils Sa J Dispositif éjecteur de déchets notamment d'une pièce de carton découpée
DE2158907C3 (de) * 1971-11-27 1975-09-04 Wupa-Maschinenfabrik Gmbh & Co Kg, 4057 Brueggen Verfahren und Vorrichtung zum Ausbrechen vorgestanzter Materialstücke aus bogenförmigen Materialbahnen
IT1023941B (it) * 1974-03-07 1978-05-30 Bobst Fils Sa J Dispositivo di espolsi e del ritagli di un foglio tagliato mediante una pressa a piastre
DE2815797C3 (de) * 1978-04-12 1980-11-06 Wupa - Maschinenfabrik Gmbh, 4057 Brueggen Vorrichtung zum Ausbrechen der Abfälle oder der Nutzen aus gestanzten Werkstücken aus Flachmaterial
CH674486A5 (enrdf_load_stackoverflow) * 1988-01-20 1990-06-15 Bobst Sa
US9046475B2 (en) 2011-05-19 2015-06-02 Applied Materials Israel, Ltd. High electron energy based overlay error measurement methods and systems
JP6331357B2 (ja) 2013-11-25 2018-05-30 株式会社ニコン 撮像素子およびカメラ

Also Published As

Publication number Publication date
AU625088B2 (en) 1992-07-02
BR9004933A (pt) 1991-09-10
DE69005575T2 (de) 1994-04-07
ATE99215T1 (de) 1994-01-15
CH681870A5 (enrdf_load_stackoverflow) 1993-06-15
US5064110A (en) 1991-11-12
JPH03121797A (ja) 1991-05-23
DK0421114T3 (da) 1994-04-25
EP0421114A1 (fr) 1991-04-10
ES2048380T3 (es) 1994-03-16
AU6318690A (en) 1991-04-11
JP2514745B2 (ja) 1996-07-10
DE69005575D1 (de) 1994-02-10
CA2026291A1 (en) 1991-04-04
CA2026291C (en) 1994-09-06

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