EP0330914B1 - 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 PDFInfo
- Publication number
- EP0330914B1 EP0330914B1 EP89102631A EP89102631A EP0330914B1 EP 0330914 B1 EP0330914 B1 EP 0330914B1 EP 89102631 A EP89102631 A EP 89102631A EP 89102631 A EP89102631 A EP 89102631A EP 0330914 B1 EP0330914 B1 EP 0330914B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ejector
- lever
- bearing
- drive
- plane
- 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
Links
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 101100390736 Danio rerio fign gene Proteins 0.000 description 1
- 101100390738 Mus musculus Fign gene Proteins 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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 14 442 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 forming press has a two-armed ejector lever with one drive-side and one output-side, ejector-side Poor.
- a drive linkage engages in a plane of attack on the drive arm;
- An ejector tappet is acted on via an ejector-side tap level.
- Attack plane and tap plane run parallel to each other and in the ejector position parallel to the displacement plane.
- the plane of displacement results from the adjustment of a support for changing the gear ratio of the ejector lever.
- the removal level (ejector position) that can be reached by the ejector plunger should be the same even with different attachment lengths, using a press-proof stop as a counter-system during the forming process.
- the separation of roles in their assignments on the one hand to the ejector plunger and 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 the power take-off from a curve and the introduction of force into the ejector lever enables a tilt-free implementation of the movements using swivel 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 which rotates 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 multiple parts 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 region 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 template is now moved in the direction of arrow 35 from position 14 into positions 14 ', 14 ⁇ , 14 ′′′, this displacement movement corresponding to the movement of 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 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 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)
Claims (8)
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 EP0330914A1 (fr) | 1989-09-06 |
EP0330914B1 true 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) |
Families Citing this family (16)
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 |
DE10150101B4 (de) * | 2000-09-23 | 2008-09-11 | Schuler Pressen Gmbh & Co. Kg | Presse und Verfahren zum Umformen von Werkstücken |
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 |
CN107755571B (zh) * | 2016-08-19 | 2024-05-14 | 北京机电研究所 | 一种下顶出机构 |
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 |
CN109719901A (zh) * | 2019-01-27 | 2019-05-07 | 魏新文 | 一种机械零部件倒灌模具 |
CN110711823B (zh) * | 2019-10-25 | 2020-11-17 | 乐清泰起知识产权服务有限公司 | 一种冲压后自动卸料的五金加工辅助用转运装置 |
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1639840A (en) * | 1926-08-14 | 1927-08-23 | Davis Roy Paul Miller | Inertia stripper |
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 |
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 |
DE2106454C3 (de) * | 1971-02-11 | 1975-02-13 | L. Schuler Gmbh, 7320 Goeppingen | Vorrichtung zum Auswerfen von Werkstücken aus PreBmatrizen |
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 |
DE3322944C2 (de) * | 1983-06-25 | 1987-03-19 | Eumuco Aktiengesellschaft für Maschinenbau, 5090 Leverkusen | Matrizenauswerfer-Vorrichtung für Mehrstufen-Umformmaschinen |
EP0151204B1 (fr) * | 1984-02-09 | 1988-02-03 | L. SCHULER GmbH | Presse à frapper les monnaies |
-
1988
- 1988-02-27 DE DE3806352A patent/DE3806352A1/de not_active Withdrawn
-
1989
- 1989-02-16 DE DE8989102631T patent/DE58901209D1/de not_active Expired - Lifetime
- 1989-02-16 EP EP89102631A patent/EP0330914B1/fr not_active Expired - Lifetime
- 1989-02-16 ES ES198989102631T patent/ES2032062T3/es not_active Expired - Lifetime
- 1989-02-24 WO PCT/DE1989/000107 patent/WO1993013893A1/fr unknown
- 1989-02-24 US US07/432,723 patent/US5067892A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1993013893A1 (fr) | 1993-07-22 |
DE3806352A1 (de) | 1989-09-07 |
DE58901209D1 (de) | 1992-05-27 |
EP0330914A1 (fr) | 1989-09-06 |
ES2032062T3 (es) | 1993-01-01 |
US5067892A (en) | 1991-11-26 |
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