EP0383111A2 - Entraînement pour éjecteur situé du côté du poinçon et coulissant dans le coulisseau d'une presse mécanique - Google Patents

Entraînement pour éjecteur situé du côté du poinçon et coulissant dans le coulisseau d'une presse mécanique Download PDF

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Publication number
EP0383111A2
EP0383111A2 EP90102075A EP90102075A EP0383111A2 EP 0383111 A2 EP0383111 A2 EP 0383111A2 EP 90102075 A EP90102075 A EP 90102075A EP 90102075 A EP90102075 A EP 90102075A EP 0383111 A2 EP0383111 A2 EP 0383111A2
Authority
EP
European Patent Office
Prior art keywords
control
tappet
drive
ejector
control cam
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.)
Granted
Application number
EP90102075A
Other languages
German (de)
English (en)
Other versions
EP0383111A3 (fr
EP0383111B1 (fr
Inventor
Günter Riedisser
Rainer Braun
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.)
Schuler AG
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0383111A2 publication Critical patent/EP0383111A2/fr
Publication of EP0383111A3 publication Critical patent/EP0383111A3/fr
Application granted granted Critical
Publication of EP0383111B1 publication Critical patent/EP0383111B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18176—Crank, pitman, lever, and slide

Definitions

  • the invention relates to a drive for a male-side ejector displaceably mounted in a tappet of a mechanical forming press with an angle lever pivotably mounted in the tappet, one leg of which acts on the end of the ejector facing away from the male part and the other leg of which is driven by a cycle Control curve acted on and is held in this system.
  • a pin-shaped ejector penetrating the male part see e.g. DE 28 27 561 A1
  • an ejector sleeve surrounding the patrix of existing ejectors for workpieces that are sleeve-shaped or have a central recess see e.g. DE 925 566 C3 to understand.
  • the other leg of the angle lever can be held in a non-positive or form-fitting manner on the control cam which drives it in cycles. This can be done, for example, by spring action or by designing the control cam on a constant-thickness cam, see e.g. DE 21 02 571 A1, or can be realized by trough-shaped design of the control curve with mutual limitation.
  • the drive of the cam is derived from the connecting rod used to drive the tappet, see e.g. DE 16 27 977 B2, DE 28 12 695 C3. Freely adjustable adjustability of the movement of the ejector in relation to the movement of the tappet cannot be achieved with such designs.
  • control cam mounted in the tappet is driven via a profile splined shaft connection which has to accommodate changes in length in the extent of the tappet stroke, see DE 21 35 405 B2.
  • Such a design is expensive and not very easy to maintain.
  • the object on which the invention is based is to enable the movement characteristics of the ejector to be freely set in the simplest possible embodiment of the drive with few components and low susceptibility to malfunction, while avoiding the disadvantages mentioned, with means that are descriptive the selected setting.
  • control cam is provided on a control slide which is displaceable in a guide fixed to the frame parallel to the direction of movement of the plunger and on which a control connecting rod engages in a bearing which eccentrically at the other end a shaft which also drives the plunger is mounted.
  • the shaft which also drives the plunger can be both the main drive shaft of the press, which carries an eccentricity for driving the plunger, and a shaft rotating in the drive gear train for the latter and rotating at the same speed.
  • the invention can be used both in forming presses with a vertical direction of action of the ram and in those with a horizontal direction of action of the ram.
  • the main drive shaft 2 which can be driven by a motor (not shown) via a gearwheel 3, is mounted in a frame 1 of the forming press.
  • the main drive shaft 2 has an eccentricity 4, on which a drive connecting rod 5 is mounted, which is articulated at the other end on a tappet 6 which is guided in the frame 1 so that it can move vertically.
  • the main drive shaft 2 is also provided with an eccentric crank 7, on which a control connecting rod 8 is mounted, which is articulated at the other end on a control slide 9 guided vertically displaceably on the frame 1.
  • a table-like clamping surface 10 for a die 11 clamped thereon is formed on the frame 1 in its lower part.
  • a male part 13 fastened to a plunger base 12 of the plunger 6 interacts with the female part 11.
  • a pin-shaped ejector 14 which penetrates it and can be acted upon by a drive (not shown) for the same.
  • a pin-shaped ejector 15 penetrating this is also movably guided.
  • a control pin 16 which is displaceably guided in the plunger 6 and on the end of which is remote from the ejector 15 a leg 17 of an angle lever 18 acts.
  • the angle lever 18 is pivotally mounted on a pin 19 in the plunger 6.
  • the other leg 20 of the angle lever 18 carries a rotatable roller 21 and is under the action of a pressure spring 22 which is supported on the tappet 6 at the other end and which holds the roller 21 in contact with a control cam 23.
  • the control cam 23 is partially formed on an exchangeable component 24 which is detachably fastened to the control slide 9.
  • a slide 25 is slidably and fixably mounted at an acute angle to the direction of movement of the control slide 9.
  • a surface on the slide 25 forms a further part of the control curve 23.
  • the displacement and locking of the slide 25 in the component 24 is carried out by a screw 26 which can be screwed into the slide 25 and rotatable in the component 24, but is non-displaceably mounted in the longitudinal direction and which is used for Actuate has a square 27.
  • the length of the control curve 23 and the angular position and the size of the eccentricities 4, (crank) 7 are dimensioned such that the roller 21 remains in contact with the control curve 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Meat, Egg Or Seafood Products (AREA)
EP90102075A 1989-02-14 1990-02-02 Entraînement pour éjecteur situé du côté du poinçon et coulissant dans le coulisseau d'une presse mécanique Expired - Lifetime EP0383111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904278 1989-02-14
DE3904278A DE3904278A1 (de) 1989-02-14 1989-02-14 Antrieb fuer einen in einem stoessel einer mechanischen umformpresse verschieblich gelagerten, patrizenseitigen auswerfer

Publications (3)

Publication Number Publication Date
EP0383111A2 true EP0383111A2 (fr) 1990-08-22
EP0383111A3 EP0383111A3 (fr) 1991-05-02
EP0383111B1 EP0383111B1 (fr) 1993-09-15

Family

ID=6373981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102075A Expired - Lifetime EP0383111B1 (fr) 1989-02-14 1990-02-02 Entraînement pour éjecteur situé du côté du poinçon et coulissant dans le coulisseau d'une presse mécanique

Country Status (4)

Country Link
US (1) US5065636A (fr)
EP (1) EP0383111B1 (fr)
DE (2) DE3904278A1 (fr)
ES (1) ES2045588T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506521A1 (de) 1995-02-24 1996-08-29 Schuler Pressen Gmbh & Co Presse, insbesondere zum Massivumformen
KR100642880B1 (ko) * 1999-05-03 2006-11-10 밀라크론 인코포레이티드 사출 성형된 부분을 추출하기 위한 전기적으로 구동되는장치
DE19935657A1 (de) * 1999-07-29 2001-02-01 Schuler Pressen Gmbh & Co Presse mit Auswerfereinrichtung für unterschiedliche Auswerferhübe
TWI464049B (zh) * 2012-07-26 2014-12-11 Techwin Opto Electronics Co Ltd Injection Molding Machine Lever Mold Extrusion Mechanism
CN112008369B (zh) * 2020-08-15 2021-12-10 温岭市微米自动化设备有限公司 一种自动轴承压装设备

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US56897A (en) * 1866-08-07 Improvement in machines for making eyelets
DE739316C (de) * 1938-03-25 1943-11-09 Waffen Und Munitionsfabriken A Stoesselauswerfer fuer Einstaender-Exzenter- und -Kurbelpressen
US2680860A (en) * 1949-05-03 1954-06-15 Nat Machinery Co Apparatus for forming hollow articles
DE1059268B (de) * 1954-09-13 1959-06-11 Peltzer & Ehlers K G Maschinen Liegende Mehrstufenpresse mit waagerechter Kurbelwelle fuer den Stempelschlitten und uebereinander angeordneten Werkzeugen
GB780830A (en) * 1955-09-07 1957-08-07 Friedrich Karl Koch An improved automatic multi-stage press
US3122033A (en) * 1962-02-02 1964-02-25 Eumuco Ag Fur Maschb Die forging press
US3171144A (en) * 1962-08-22 1965-03-02 Nat Machinery Co Knockout drive assembly
NL301772A (fr) * 1963-12-13
DE1627977B2 (de) * 1967-02-06 1978-01-05 Vyzkumny ustav tvarecich stroju a technologie tvareni, Brunn (Tschechoslowakei) Auswerfvorrichtung an einer mechanischen presse
DE1927830A1 (de) * 1969-05-31 1970-12-17 Schuler Gmbh L Vorrichtung zum Auswerfen von Werkstuecken aus Pressmatrizen
ES387011A1 (es) * 1970-01-21 1973-12-16 Sacma S P A Construzione Macch Dispositivo de expulsion para prensas de recalcado de do- ble golpe.
US3699882A (en) * 1971-07-02 1972-10-24 Gulf & Western Ind Prod Co Knockout bar assembly for presses
DE2135405B2 (de) * 1971-07-15 1974-08-08 Gebr. Hilgeland, 5600 Wuppertal Auswerferanordnung an einer Doppeldruckpresse, deren Stempelträger um eine am Pressenschlitten vorgesehene Achse schwenkbar und gegebenenfalls in den Endstellungen arretierbar ist
JPS5220188B2 (fr) * 1973-10-24 1977-06-01
US4044619A (en) * 1975-06-23 1977-08-30 Peltzer & Ehlers Device for controlling auxiliary means arranged in the reciprocating carriage of single or multistage presses
US4145784A (en) * 1977-09-15 1979-03-27 Textron Inc. Timed ejector for a header
DE2812695C3 (de) * 1978-03-23 1981-02-19 Hatebur Umformmaschinen Ag, Basel (Schweiz) Vorrichtung zum stempelseitigen Auswerfen eines Preßlings auf einer Querförderpresse zur spanlosen Metallumformung
DE2827561C2 (de) * 1978-06-23 1985-08-29 Th. Kieserling & Albrecht Gmbh & Co, 5650 Solingen Kurbelpresse mit stempelseitigem Auswerfer
SU799877A1 (ru) * 1978-12-05 1981-01-30 Центральное Проектно-Конструкторскоебюро Кузнечно-Прессовогомашиностроения Механизм выталкивани заготовокиз пуАНСОНА ХОлОдНОВыСАдОчНОгОАВТОМАТА
JPS6021807B2 (ja) * 1982-05-13 1985-05-29 株式会社阪村機械製作所 ホ−マにおけるパンチ側の押出装置
DE3322944C2 (de) * 1983-06-25 1987-03-19 Eumuco Aktiengesellschaft für Maschinenbau, 5090 Leverkusen Matrizenauswerfer-Vorrichtung für Mehrstufen-Umformmaschinen
DE3437282A1 (de) * 1984-10-11 1986-04-17 Th. Kieserling & Albrecht Gmbh & Co, 5650 Solingen Ausstossermechanismus fuer exzenterpressen
DE3666548D1 (en) * 1986-04-16 1989-11-30 Kieserling & Albrecht Ejector mechanism on the punch-side in a press

Also Published As

Publication number Publication date
DE3904278A1 (de) 1990-08-16
ES2045588T3 (es) 1994-01-16
EP0383111A3 (fr) 1991-05-02
DE59002679D1 (de) 1993-10-21
US5065636A (en) 1991-11-19
EP0383111B1 (fr) 1993-09-15

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