EP1340562A3 - Ejector mechanism on the punch-side of a single or multi stage press - Google Patents

Ejector mechanism on the punch-side of a single or multi stage press Download PDF

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Publication number
EP1340562A3
EP1340562A3 EP03002224A EP03002224A EP1340562A3 EP 1340562 A3 EP1340562 A3 EP 1340562A3 EP 03002224 A EP03002224 A EP 03002224A EP 03002224 A EP03002224 A EP 03002224A EP 1340562 A3 EP1340562 A3 EP 1340562A3
Authority
EP
European Patent Office
Prior art keywords
press
punch
slide
blocking
ejector pin
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Withdrawn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
EP03002224A
Other languages
German (de)
French (fr)
Other versions
EP1340562A2 (en
Inventor
Dietmar Sautter
Werner GÖDTNER
Udo Kühne
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.)
Wafios AG
Original Assignee
Wafios AG
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 Wafios AG filed Critical Wafios AG
Publication of EP1340562A2 publication Critical patent/EP1340562A2/en
Publication of EP1340562A3 publication Critical patent/EP1340562A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/14—Ejecting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

Eine stempelseitige Auswerfvorrichtung (10) für Umformpressen, die einen auf einem Pressengestell zwischen einer zu einer stationären Preß-Matrize (80) hin ausgefahrenen Preßstellung und einer von dieser entfernten Ruhestellung verfahrbaren Preß-Schlitten (12) mit einem Preß-Stempel (56) aufweisen, ferner mit einem in Preßrichtung am Preß-Schlitten (12) geführten, den Preß-Stempel (56) durchdringenden Auswerferstift (64), der zwischen einer eingefahrenen Endstellung, in welcher er sich gegen einen Anschlag (68) am Preß-Schlitten (12) abstützt, und einer aus dem Preß-Stempel (56) vorragenden Ausfahrstellung verschiebbar und mit einer Rückstelleinrichtung (62,72) versehen ist, die entgegen seiner Ausfahrrichtung wirkt und der mittels einer Blockiereinrichtung (22,50) bei Rücklauf des Preß-Schlittens (12) aus dessen Preßstellung entgegen dessen Rücklaufbewegung lösbar blockiert werden kann, wobei das Aktivieren und Deaktivieren der Blockiereinrichtung und das Zuschalten der Rückstelleinrichtung (62, 72) programmgesteuert und gekoppelt sind, umfaßt die Blockiereinrichtung ein lageveränderbares Blockierelement (50), das in der Preßstellung des Preß-Schlittens (12) in blockierenden Eingriff mit dem Auswerferstift (64) oder einem mit diesem verbundenen Teil (60) eingefahren werden kann, während sich der Auswerferstift (64) in Anlage gegen den Anschlag (68) befindet.

Figure 00000001
A punch-side ejection device (10) for forming presses, which have a press slide (12) with a press punch (56) that can be moved on a press frame between a press position extended to a stationary press die (80) and a rest position that is distant from this position , furthermore with an ejector pin (64) which is guided in the pressing direction on the press slide (12) and penetrates the press punch (56) and which extends between a retracted end position in which it rests against a stop (68) on the press slide (12 ), and an extended position protruding from the press ram (56) is displaceable and is provided with a reset device (62, 72) which acts counter to its extended direction and which is blocked by means of a blocking device (22, 50) when the press slide () 12) can be detachably blocked from its pressing position against its return movement, the activation and deactivation of the blocking device and the switching on of the resetting device (62, 72) are program-controlled and coupled, the blocking device comprises a position-changing blocking element (50) which, in the pressed position of the pressing slide (12), engages in blocking manner with the ejector pin (64) or a part (60 ) can be retracted while the ejector pin (64) is in contact with the stop (68).
Figure 00000001
EP03002224A 2002-02-28 2003-01-31 Ejector mechanism on the punch-side of a single or multi stage press Withdrawn EP1340562A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10208720A DE10208720B4 (en) 2002-02-28 2002-02-28 Stamp-side ejection device for workpieces in single or multi-stage presses
DE10208720 2002-02-28

Publications (2)

Publication Number Publication Date
EP1340562A2 EP1340562A2 (en) 2003-09-03
EP1340562A3 true EP1340562A3 (en) 2004-07-14

Family

ID=27675117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002224A Withdrawn EP1340562A3 (en) 2002-02-28 2003-01-31 Ejector mechanism on the punch-side of a single or multi stage press

Country Status (3)

Country Link
US (1) US6907765B2 (en)
EP (1) EP1340562A3 (en)
DE (1) DE10208720B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7181807B2 (en) 2019-02-18 2022-12-01 住友重機械工業株式会社 Forging press device and forming method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB448136A (en) * 1934-12-07 1936-06-03 Schuler L Ag Device for ejecting hot-pressed articles from the press-die
US2187479A (en) * 1938-12-03 1940-01-16 Ajax Mfg Co Ejector mechanism for metal forming presses
US3333454A (en) * 1964-12-23 1967-08-01 Olympic Screw & Rivet Corp Stripper mechanism
US4145784A (en) * 1977-09-15 1979-03-27 Textron Inc. Timed ejector for a header
US4720990A (en) * 1984-10-11 1988-01-26 Th. Kieserling Ejector mechanism for eccentric presses
CH681522A5 (en) * 1991-06-14 1993-04-15 Guido Bertoglio High speed precision press work extractor - has extraction needle on spring loaded piston holding roller on plunger against cam on connecting rod

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL301772A (en) * 1963-12-13
NL6704472A (en) * 1967-03-29 1968-09-30
US3712107A (en) * 1971-03-04 1973-01-23 Crown Cork & Seal Co Apparatus for and method of stripping containers from metal working punches
JPS5220188B2 (en) * 1973-10-24 1977-06-01
US3911718A (en) * 1974-06-12 1975-10-14 Robert E Requarth Hydraulic ejection device
DE4002347B4 (en) * 1990-01-26 2006-06-08 Hilgeland-Nutap Gmbh Transfer device on machines for the progressive molding of workpieces, in particular cross conveyor on multi-stage presses
DE10007255A1 (en) * 2000-02-17 2001-09-06 Wafios Ag Work piece ejector for single/multistage press e.g. screws, rivets, etc. has ejector peg charged by pivoted ejector lever

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB448136A (en) * 1934-12-07 1936-06-03 Schuler L Ag Device for ejecting hot-pressed articles from the press-die
US2187479A (en) * 1938-12-03 1940-01-16 Ajax Mfg Co Ejector mechanism for metal forming presses
US3333454A (en) * 1964-12-23 1967-08-01 Olympic Screw & Rivet Corp Stripper mechanism
US4145784A (en) * 1977-09-15 1979-03-27 Textron Inc. Timed ejector for a header
US4720990A (en) * 1984-10-11 1988-01-26 Th. Kieserling Ejector mechanism for eccentric presses
CH681522A5 (en) * 1991-06-14 1993-04-15 Guido Bertoglio High speed precision press work extractor - has extraction needle on spring loaded piston holding roller on plunger against cam on connecting rod

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29) *

Also Published As

Publication number Publication date
DE10208720B4 (en) 2005-11-03
EP1340562A2 (en) 2003-09-03
DE10208720A1 (en) 2003-09-25
US20030159492A1 (en) 2003-08-28
US6907765B2 (en) 2005-06-21

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