EP0330914A1 - Dispositif d'éjection des pièces hors des matrices dans une presse de formage - Google Patents

Dispositif d'éjection des pièces hors des matrices dans une presse de formage Download PDF

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Publication number
EP0330914A1
EP0330914A1 EP89102631A EP89102631A EP0330914A1 EP 0330914 A1 EP0330914 A1 EP 0330914A1 EP 89102631 A EP89102631 A EP 89102631A EP 89102631 A EP89102631 A EP 89102631A EP 0330914 A1 EP0330914 A1 EP 0330914A1
Authority
EP
European Patent Office
Prior art keywords
ejector
lever
arm
support
ejector lever
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
EP89102631A
Other languages
German (de)
English (en)
Other versions
EP0330914B1 (fr
Inventor
Oskar Rahn
Günter Riedisser
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.)
L Schuler GmbH
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 EP0330914A1 publication Critical patent/EP0330914A1/fr
Application granted granted Critical
Publication of EP0330914B1 publication Critical patent/EP0330914B1/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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/005—Cammed

Definitions

  • the invention relates to a device of the generic type.
  • the ejector plunger serves to eject the workpiece which is shaped or partially formed in the step and to hold back when forming an extension which is extended downwards.
  • the ejector movement is to be adjusted to the length of such an approach.
  • a device of the generic type is known from DE 19 27 830 C2.
  • the ejector stroke can be adjusted by changing the lever ratios on the ejector lever and for this a press-proof stop is provided as a counterpart for the ejector plunger during the forming.
  • the ejector stroke which can be set to different lengths of different workpieces, causes a different removal level from workpiece to workpiece.
  • DE 24 14 422 C2 describes an ejector device in a forming press with a press-side stop that can be adjusted to the length of the shoulder on the workpiece. This type of setting is cumbersome and time-consuming. In addition, as the gear ratio changes, the removal level for the workpiece also shifts.
  • a forming press is known from EP 0 151 204 A1 with a pressure cylinder in the force curve of the ejector force in order to prevent overload when the ejector is clamped.
  • the removal level (ejector position) that can be reached by the ejector plunger should also apply to different ones Neck lengths are the same using a press-proof stop as a counter-device for the forming.
  • the separation of roles in their assignments on the one hand to the ejector plunger, on the other hand to the ejector lever causes a rolling (rolling) and thus low-friction transition during the forming and ejector movement despite counter-rotating movements.
  • the ease of maintenance is significantly increased due to the adjustable mounting of the ejector lever via a slide arrangement.
  • the drive linkage for tapping the force from a curve and forcing the force into the ejector lever enables the movements to be tilted without using tilting joints. Overall, the ejector system is protected against overload.
  • Fig. 1 drive deflection and ejector means for ejecting a workpiece from a die 3 are shown in the table-side ejector area 1 of the press frame 2.
  • the ejector tappet 4 can be actuated directly or via an ejector rod 6 by an ejector lever 5.
  • the ejector lever 5 is mounted in a support 14 on a bearing block 13 in a carriage 16.
  • the position numbers 15 refer to the required fastening means between the bearing block 13 and the slide 16.
  • the carriage 16 is displaceable in guides 17 by means of a spindle 18 and an adjusting means 19 rotating to the left and right.
  • a roller assembly 8 is provided, which is mounted on the freely movable end of an intermediate lever 7 at 38.
  • the from e.g. individual tabs 39 existing intermediate lever 7 is pivotable about a point fixed to the frame.
  • the multipart nature of this roller arrangement 8 can be seen in more detail from the sectional view in FIG. 2, the same position numbers being used for the same parts.
  • the fixed stop 9 is designed as a roller in the pivot point 40 fixed to the frame.
  • the angle lever 5 can be acted upon via a drive linkage 21 in the sense of an ejector movement.
  • the drive linkage 21 consists essentially of a parallel guide, for example a straight guide for the rollers 29, 27.
  • the rollers 29, 27 can also be rotatably mounted on a crank arm 23 or on a swing arm 25 via rotary bearings 28, 26 .
  • Crank arm 23 and swing arm 25 are fixed to the frame in bearings 22 but are mounted so that they can swing.
  • the parallel links 23 and 25 are connected via a coupling arm 24 in the pivot bearings 28 and 26, respectively.
  • a pressure cylinder 33 is introduced, which holds the roller 29 on the cam 31 under pressure, the roller 27 on the upper side - the attack plane 20 '- another, attached to the ejector lever 5 hardened pressure plate 20.
  • the counterforce for this is applied via an energy accumulator 47, for example a further pressure cylinder.
  • the cam disc 31 is continuously rotating via a press drive shaft 30. Item 32 marks the extension of the piston rod led out of the pressure cylinder 33.
  • Fig. 1b shows the geometric development of a curve 11 on the underside of the ejector lever 5 in the area of its abutment on the supporting support 9.
  • the angle lever 5, which is replaced here by a template to be machined, is with the attack plane 20 'by means of the energy accumulator 47 guided against the roller 27 on the drive linkage 21.
  • the drive linkage 21 assumes the deformed position, the cam disk 31 shown in FIG. 1a being rotated by 180 degrees. If the ejector lever 5 characterizing slab in the direction of arrow 35 from position 14 to positions 14 ', 14,, 14 ′′′ is moved, this displacement movement corresponds to the movement of the ejector lever 5 in Fig.
  • the ejector stroke which is shown in the following FIGS. 3a to 3d numbered 45 is determined by the length of a shoulder 44 on a workpiece 43.
  • 3a to 3d added workpieces 43 differ in the length of their approaches 44.
  • the position numbers from FIG. 1a have been partially adopted. These indicate the same arrangements and parts.
  • Fig. 3a shows the ejector position for the ejector lever 5 and the counter abutment position 5 'of the ejector lever 5 on the supporting support 9 for a long shoulder 44 on the workpiece 43.
  • the pivot bearing 14 of the angle lever 5 is in the position moved to the right, so that a shorter distance - drive-side arm 42 - between the center of the roller 27 or its support on the attack plane 20 'and the center of the pivot bearing 14 and a longer distance - the output-side arm 41 - between the center of the pivot bearing 14 and the center of the roller 36 or its support on the tap level 12 'is set. This initially causes a larger ejector stroke 45, which is required for the projection 44.
  • the angle lever 5 Since the angle lever 5 is to be prevented from further movement in the pressing direction by the supporting support 9 for the forming process, the angle lever 5 must have a width for this purpose, which is indicated by 48 and which results from the distance between the top - tap level 12 '- of the ejector lever 5 in its ejector position and the outer shape of the supporting bearing 9, minus the size of the ejector stroke 45.
  • the development of the width 48 was evident from FIG. 1b.
  • the angle lever 5 can be moved to the left by the adjusting means 19 in FIG. 1a, for example into the positions 14 ', 14 ⁇ , 14 ′′′ or in corresponding intermediate positions.
  • the ejector stroke 45 corresponding to the projection 44 on the workpiece 43 is small.
  • the ejector lever 5 has a greater width 48 in the area between the rollers 36, 37 and the supporting support 9.
  • the figures 3b and 3c show the angle lever 5 in the positions 14 'and 14 ⁇ with a corresponding width 48.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)
EP89102631A 1988-02-27 1989-02-16 Dispositif d'éjection des pièces hors des matrices dans une presse de formage Expired - Lifetime EP0330914B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806352A DE3806352A1 (de) 1988-02-27 1988-02-27 Vorrichtung zum auswerfen von werkstuecken aus matrizen in einer umformpresse
DE3806352 1988-02-27

Publications (2)

Publication Number Publication Date
EP0330914A1 true EP0330914A1 (fr) 1989-09-06
EP0330914B1 EP0330914B1 (fr) 1992-04-22

Family

ID=6348396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102631A Expired - Lifetime EP0330914B1 (fr) 1988-02-27 1989-02-16 Dispositif d'éjection des pièces hors des matrices dans une presse de formage

Country Status (5)

Country Link
US (1) US5067892A (fr)
EP (1) EP0330914B1 (fr)
DE (2) DE3806352A1 (fr)
ES (1) ES2032062T3 (fr)
WO (1) WO1993013893A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150101B4 (de) * 2000-09-23 2008-09-11 Schuler Pressen Gmbh & Co. Kg Presse und Verfahren zum Umformen von Werkstücken
CN107755571A (zh) * 2016-08-19 2018-03-06 北京机电研究所 一种下顶出机构
CN109719901A (zh) * 2019-01-27 2019-05-07 魏新文 一种机械零部件倒灌模具
CN110711823A (zh) * 2019-10-25 2020-01-21 温州知束贸易有限公司 一种冲压后自动卸料的五金加工辅助用转运装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0010299A (pt) * 1999-05-03 2002-04-23 Cincinnati Milacron Inc Aparelho eletricamente acionado para ejetar partes moldadas por injeção
DE10005676C2 (de) * 2000-02-07 2003-04-24 Demag Ergotech Wiehe Gmbh Auswerfereinrichtung für eine Spritzgießmaschine für Kunststoffe
GB2360235B (en) * 2000-03-10 2002-02-06 Platarg Engineering Ltd Workpiece ejector for transfer press
DE10063154B4 (de) * 2000-12-18 2005-02-10 Nedschroef Herentals N.V. Schmiedepresse mit Stellvorrichtung auf Matrizenseite
DE10213850C1 (de) * 2002-03-27 2003-06-05 Wafios Ag Matritzenseitige Auswerfvorrichtung für Werkstücke bei Ein- und Mehrstufenpressen
US20040137104A1 (en) * 2003-01-13 2004-07-15 Fu Sheng Industrial Co., Ltd. Demolding device for a wax pattern for a golf club head
US7232539B2 (en) * 2003-06-20 2007-06-19 Jere F. Irwin Trim press, article ejecting device, trim press article ejector, and method of stacking and cleaning out thermoformed articles
TWI464049B (zh) * 2012-07-26 2014-12-11 Techwin Opto Electronics Co Ltd Injection Molding Machine Lever Mold Extrusion Mechanism
CN102909306A (zh) * 2012-10-26 2013-02-06 常州市立威刀具有限公司 机械式自动下顶件装置
CN109352914B (zh) * 2018-11-07 2023-10-17 宁波帅特龙集团有限公司 一种成型车用音箱盖板的模腔组件
KR20210085718A (ko) 2019-12-31 2021-07-08 주식회사 코어볼트 내벽용 앵커볼트
CN117261086B (zh) * 2023-11-17 2024-06-04 深圳市洁盟塑胶五金制品有限公司 一种高分子材料注射发泡成型模具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927830B (de) * L. Schuler GmbH, 7320 Göppingen Vorrichtung zum Auswerfen von Werkstücken aus Preßmatrizen
US3266071A (en) * 1965-03-29 1966-08-16 Hilgeland Fa Geb Cam-controlled apparatus for throwing out the bolts from the counter punch of bolt presses or the like
US3440860A (en) * 1966-07-18 1969-04-29 Textron Inc Cyclic positioning mechanism
CH472962A (de) * 1967-02-06 1969-05-31 Vyzk Ustav Tvarecich Stroju Auswerfereinrichtung für mechanische Pressen mit selbsttätigem Auswerfen aus dem Tisch und aus dem Pressbär
DE2106454B2 (de) * 1971-02-11 1974-06-20 L. Schuler Gmbh, 7320 Goeppingen Vorrichtung zum Auswerfen von Werkstücken aus Preßmatrizen
US3820376A (en) * 1972-08-18 1974-06-28 Peltzer & Ehlers Variable stroke ejector mechanism
EP0151204A1 (fr) * 1984-02-09 1985-08-14 L. SCHULER GmbH Presse à frapper les monnaies
DE2414442C2 (de) * 1974-03-26 1987-02-19 L. Schuler GmbH, 7320 Göppingen Auswerfeinrichtung zum Auswerfen von Preßteilen aus der Matrize einer Presse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1639840A (en) * 1926-08-14 1927-08-23 Davis Roy Paul Miller Inertia stripper
DE1927830A1 (de) * 1969-05-31 1970-12-17 Schuler Gmbh L Vorrichtung zum Auswerfen von Werkstuecken aus Pressmatrizen
DE3322944C2 (de) * 1983-06-25 1987-03-19 Eumuco Aktiengesellschaft für Maschinenbau, 5090 Leverkusen Matrizenauswerfer-Vorrichtung für Mehrstufen-Umformmaschinen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927830B (de) * L. Schuler GmbH, 7320 Göppingen Vorrichtung zum Auswerfen von Werkstücken aus Preßmatrizen
US3266071A (en) * 1965-03-29 1966-08-16 Hilgeland Fa Geb Cam-controlled apparatus for throwing out the bolts from the counter punch of bolt presses or the like
US3440860A (en) * 1966-07-18 1969-04-29 Textron Inc Cyclic positioning mechanism
CH472962A (de) * 1967-02-06 1969-05-31 Vyzk Ustav Tvarecich Stroju Auswerfereinrichtung für mechanische Pressen mit selbsttätigem Auswerfen aus dem Tisch und aus dem Pressbär
DE2106454B2 (de) * 1971-02-11 1974-06-20 L. Schuler Gmbh, 7320 Goeppingen Vorrichtung zum Auswerfen von Werkstücken aus Preßmatrizen
US3820376A (en) * 1972-08-18 1974-06-28 Peltzer & Ehlers Variable stroke ejector mechanism
DE2414442C2 (de) * 1974-03-26 1987-02-19 L. Schuler GmbH, 7320 Göppingen Auswerfeinrichtung zum Auswerfen von Preßteilen aus der Matrize einer Presse
EP0151204A1 (fr) * 1984-02-09 1985-08-14 L. SCHULER GmbH Presse à frapper les monnaies

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150101B4 (de) * 2000-09-23 2008-09-11 Schuler Pressen Gmbh & Co. Kg Presse und Verfahren zum Umformen von Werkstücken
CN107755571A (zh) * 2016-08-19 2018-03-06 北京机电研究所 一种下顶出机构
CN107755571B (zh) * 2016-08-19 2024-05-14 北京机电研究所 一种下顶出机构
CN109719901A (zh) * 2019-01-27 2019-05-07 魏新文 一种机械零部件倒灌模具
CN110711823A (zh) * 2019-10-25 2020-01-21 温州知束贸易有限公司 一种冲压后自动卸料的五金加工辅助用转运装置

Also Published As

Publication number Publication date
WO1993013893A1 (fr) 1993-07-22
DE3806352A1 (de) 1989-09-07
DE58901209D1 (de) 1992-05-27
ES2032062T3 (es) 1993-01-01
US5067892A (en) 1991-11-26
EP0330914B1 (fr) 1992-04-22

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