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EP0383111B1 - Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press - Google Patents

Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press Download PDF

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Publication number
EP0383111B1
EP0383111B1 EP90102075A EP90102075A EP0383111B1 EP 0383111 B1 EP0383111 B1 EP 0383111B1 EP 90102075 A EP90102075 A EP 90102075A EP 90102075 A EP90102075 A EP 90102075A EP 0383111 B1 EP0383111 B1 EP 0383111B1
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EP
European Patent Office
Prior art keywords
control
control cam
drive
ram
carriage
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
EP90102075A
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German (de)
French (fr)
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EP0383111A2 (en
EP0383111A3 (en
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
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Publication date
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Publication of EP0383111A2 publication Critical patent/EP0383111A2/en
Publication of EP0383111A3 publication Critical patent/EP0383111A3/en
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Publication of EP0383111B1 publication Critical patent/EP0383111B1/en
Anticipated expiration legal-status Critical
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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
  • the control cam is acted upon and held in contact with it, the control cam being provided on a control cam carrier which is movably mounted in bearings fixed to the frame.
  • a pin-shaped ejector penetrating the male part see e.g. DE 28 27 561 A1
  • an ejector for at least one sleeve-shaped or with a central recess consisting of at least one pin guided parallel to the male outside of the male and possibly an ejector sleeve surrounding the male, see e.g. B. 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.
  • a drive for a ejector-side ejector slidably mounted in a tappet of a mechanical forming press is known, an angled lever being pivotably mounted in the tappet, the second leg of which is turned away from the ejector in the patrix and acted upon by a cyclically driven control cam is, which is movably mounted in a cam carrier and with it in the rack-side bearing.
  • 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 design of the drive with few components and low susceptibility to malfunction, while avoiding the disadvantages mentioned, with means that make the display clear selected setting.
  • control cam carrier is designed as a control slide and its movable mounting is designed as a straight, linear guide running parallel to the direction of movement of the tappet, and in that a control connecting rod acts on the control slide in a bearing.
  • the other end is mounted eccentrically on a shaft which also serves to drive the tappet.
  • 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 Actuate has a square 27.
  • the length of the control curve 23, as well as 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)

Description

Die Erfindung bezieht sich auf einen Antrieb für einen in einem Stößel einer mechanischen Umformpresse verschieblich gelagerten, patrizenseitigen Auswerfer mit einem in dem Stößel schwenkbar gelagerten Winkelhebel, dessen einer Schenkel auf das von der Patrize abgewandte Ende des Auswerfers wirkt und dessen anderer Schenkel von einer taktweise angetriebenen Steuerkurve beaufschlagt und an dieser in Anlage gehalten ist, wobei die Steuerkurve an einem Steuerkurvensträger vorgesehen ist, der in gestellfesten Lagern beweglich gelagert ist.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 The control cam is acted upon and held in contact with it, the control cam being provided on a control cam carrier which is movably mounted in bearings fixed to the frame.

Hierbei ist unter einem patrizenseitigen Auswerfer wahlweise ein stiftförmiger, die Patrize durchdringender Auswerfer, siehe z.B. DE 28 27 561 A1, oder ein aus mindestens einem parallel zu der Patrize außerhalb derselben geführten Stift und ggf. einer die Patrize umgebenden Auswerferhülse bestehender Auswerfer für etwa hülsenförmige oder mit einer zentralen Ausnehmung versehene Werkstücke, siehe z. B. DE 925 566 C3, zu verstehen.Here, under a male-side ejector, there is either a pin-shaped ejector penetrating the male part, see e.g. DE 28 27 561 A1, or an ejector for at least one sleeve-shaped or with a central recess, consisting of at least one pin guided parallel to the male outside of the male and possibly an ejector sleeve surrounding the male, see e.g. B. DE 925 566 C3 to understand.

Im übrigen kann bei solchen Antrieben der andere Schenkel des Winkelhebels an der diesen taktweise antreibenden Steuerkurve kraft- oder formschlüssig in Anlage gehalten sein. Dies kann beispielsweise durch Federwirkung oder mittels Ausbildung der Steuerkurve an einer Gleichdick-Kurvenscheibe, siehe z.B. DE 21 02 571 A1, oder durch rinnenförmige Ausführung der Steuerkurve mit beiderseitiger Begrenzung verwirklicht sein.Moreover, in the case of such drives, 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.

Antriebe der eingangs genannten Art sind in zahlreichen Ausführungsformen bekannt.Drives of the type mentioned are known in numerous embodiments.

Manche dieser bekannten Antriebe weisen vielgliedrige Übertragungsgetriebe im Antrieb der Steuerkurve und/oder der Bewegungsübertragung auf den Winkelhebel auf, siehe z.B. DE 24 50 631 B2, DE 28 27 561 A1, DE 17 50 033 B2. Die Vielteiligkeit dieser Ausführungen verursacht hohe Herstellungs- und Wartungskosten.Some of these known drives have multi-section transmission gears in the drive of the cam and / or the movement transmission to the angle lever, see e.g. DE 24 50 631 B2, DE 28 27 561 A1, DE 17 50 033 B2. The variety of these designs causes high manufacturing and maintenance costs.

Bei anderen bekannten Antrieben ist der Antrieb der Steuerkurve von dem dem Antrieb des Stößels dienenden Pleuel abgeleitet, siehe z.B. DE 16 27 977 B2, DE 28 12 695 C3. Eine freizügige Einstellbarkeit der Bewegung des Auswerfers in Bezug auf die Bewegung des Stößels ist mit solchen Ausführungen nicht realisierbar.In other known drives, 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.

Bei einem weiteren bekannten Antrieb erfolgt der Antrieb der im Stößel gelagerten Steuerkurve über eine Profilkeilwellenverbindung, die Längenänderungen im Ausmaß des Stößelhubes taktweise aufnehmen muß, siehe DE 21 35 405 B2. Eine solche Ausführung ist kostspielig und wenig wartungsfreundlich.In a further known drive, the 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.

Bei einem anderen bekannten Antrieb nur eine angetriebene Bewegung der Steuerkurve in Querrichtung zur Bewegungsrichtung des Stößels vorgesehen, so daß keine freizügige Einstellbarkeit der Bewegung des Auswerfers im Verhältnis zur Bewegung des Stößels erzielbar ist, siehe DE 34 37 282 A1.In another known drive, only a driven movement of the control cam in the transverse direction to the direction of movement of the plunger is provided, so that no free adjustment of the movement of the ejector in relation to the movement of the plunger can be achieved, see DE 34 37 282 A1.

Schließlich ist aus der SU-A 799 877 ein Antrieb für einen in einem Stößel einer mechanischen Umformpresse verschieblich gelagerten patrizenseitigen Auswerfer bekannt, wobei in dem Stößel ein Winkelhebel schwenkbar gelagert ist, dessen dem Auswerfer in der Patrize abgewandter zweiter Schenkel von einer taktweise angetriebenen Steuerkurve beaufschlagt wird, die in einem Steuerkurventräger und mit diesem in gestellseitigen Lager beweglich gelagert ist.Finally, from SU-A 799 877 a drive for a ejector-side ejector slidably mounted in a tappet of a mechanical forming press is known, an angled lever being pivotably mounted in the tappet, the second leg of which is turned away from the ejector in the patrix and acted upon by a cyclically driven control cam is, which is movably mounted in a cam carrier and with it in the rack-side bearing.

Von diesem Stand der Technik ausgehend besteht die der Erfindung zugrundeliegende Aufgabe darin, unter Vermeidung der angeführten Nachteile eine freizügige Einstellbarkeit der Bewegungscharakteristik des Auswerfers in möglichst einfacher Ausführung des Antriebes mit wenig Bauteilen und geringer Störanfälligkeit zu ermöglichen, und zwar mit Mitteln, die eine Anschaulichkeit der gewählten Einstellung ergeben.Based on this state of the art, 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 design of the drive with few components and low susceptibility to malfunction, while avoiding the disadvantages mentioned, with means that make the display clear selected setting.

Diese Aufgabe ist bei einem Antrieb der eingangs genannten Art dadurch gelöst, daß der Steuerkurventräger als Steuerschlitten und dessen bewegliche Lagerung als parallel zu der Bewegungsrichtung des Stößels verlaufende, gestellfeste, geradlinige Führung ausgebildet ist, und daß an dem Steuerschlitten in einem Lager ein Steuerpleuel angreift, der anderenends exzentrisch auf einer auch dem Antrieb des Stößels dienenden Welle gelagert ist.This object is achieved in a drive of the type mentioned above in that the control cam carrier is designed as a control slide and its movable mounting is designed as a straight, linear guide running parallel to the direction of movement of the tappet, and in that a control connecting rod acts on the control slide in a bearing. the other end is mounted eccentrically on a shaft which also serves to drive the tappet.

Mit den genannten Merkmalen ist die angeführte Aufgabe gelöst, womit sich die angestrebten Vorteile ergeben. Außerdem werden damit die vorteilhaften weiteren Ausgestaltungen ermöglicht, die Gegenstand der Patentansprüche 2 bis 7 sind. Hierbei hat die raumsparende Bauweise des Antriebes besondere Bedeutung bei dessen Mehrfach-Anwendung bei einer Mehrstufen-Umformpresse.With the features mentioned, the above-mentioned object is achieved, which results in the desired advantages. In addition, the advantageous further refinements are made possible, which are the subject of claims 2 to 7. Here, the space-saving design of the drive is particularly important when it is used multiple times in a multi-stage forming press.

Die Erfindung ist sowohl bei Umformpressen mit vertikaler Wirkungsrichtung des Stößels als auch bei solchen mit horizontaler Wirkungsrichtung des Stößels anwendbar.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.

Bei einer Mehrstufen-Umformpresse ist allerdings bereits ein Antrieb für die matrizenseitigen Auswerfer bekannt, siehe DE 10 59 268 C3, bei dem ein Steuerschlitten in einer gestellfesten Führung parallel zu der Bewegungsrichtung des Stößels verschieblich und von einem auf der Hauptantriebswelle der Presse gelagerten Exzenter mittels eines Steuerpleuels angetrieben ist. Dort sind in dem für den Antrieb der Auswerfer in allen Matrizen dienenden, gemeinsamen Steuerschlitten auswechselbare Steuerkurven für den Antrieb jedes Auswerfers über gestellfest gelagerte Winkelhebel vorgesehen. Hierbei handelt es sich jedoch um matrizenseitige Auswerfer, für deren Antrieb eine Übertragung von Bewegungen auf in dem Stößel gelagerte Winkelhebel nicht erforderlich ist.In a multi-stage forming press, however, a drive for the die-side ejectors is already known, see DE 10 59 268 C3, in which a control slide is displaceable in a guide fixed to the frame parallel to the direction of movement of the ram and by means of an eccentric mounted on the main drive shaft of the press Steuerpleuels is driven. There, in the common control slide, which serves to drive the ejectors in all matrices, interchangeable control cams are provided for driving each ejector via angle levers mounted on the frame. However, these are ejectors on the die side, for the drive of which it is not necessary to transmit movements to angle levers mounted in the tappet.

In der Beschreibung ist ein Ausführungsbeispiel eines erfindungsgemäßen Antriebes an einer einstufigen Umformpresse dargestellt, und zwar zeigt

Fig. 1
einen lotrechten Mittelschnitt durch die Umformpresse in der deren Hauptantriebswelle zeigenden Ebene,
Fig. 2
einen Schnitt entlang der Linie II-II in Fig. 1,
Fig. 3
einen Schnitt entlang der Linie III-III in Fig. 1.
In the description, an embodiment of a drive according to the invention is shown on a single-stage forming press, and shows
Fig. 1
a vertical central section through the forming press in the plane showing its main drive shaft,
Fig. 2
2 shows a section along the line II-II in FIG. 1,
Fig. 3
a section along the line III-III in Fig. 1st

In einem Gestell 1 der Umformpresse ist deren Hauptantriebswelle 2 gelagert, die von einem - nicht dargestellten - Motor über ein Zahnrad 3 antreibbar ist. Die Hauptantriebswelle 2 weist eine Exzentrizität 4 auf, auf der ein Antriebspleuel 5 gelagert ist, der anderenends an einem Stößel 6 angelenkt ist, der in dem Gestell 1 lotrecht beweglich geführt ist. Die Hauptantriebswelle 2 ist ferner mit einer exzentrischen Kurbel 7 versehen, auf der ein Steuerpleuel 8 gelagert ist, der anderenends an einem an dem Gestell 1 lotrecht verschieblich geführten Steuerschlitten 9 angelenkt ist.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.

An dem Gestell 1 ist in dessen unterem Teil eine tischartige Aufspannfläche 10 für eine darauf aufgespannte Matrize 11 ausgebildet. Mit der Matrize 11 wirkt eine an einer Stößelsohle 12 des Stößels 6 befestigte Patrize 13 zusammen. In der Matrize 11 ist ein diese durchdringender, stiftförmiger Auswerfer 14 vorgesehen, der von einem - nicht dargestellten - Antrieb für denselben beaufschlagbar ist. In der Patrize 13 ist ebenfalls ein diese durchdringender, stiftförmiger Auswerfer 15 beweglich geführt.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. Provided in the die 11 is a pin-shaped ejector 14 which penetrates it and can be acted upon by a drive (not shown) for the same. In the male part 13, a pin-shaped ejector 15 penetrating this is also movably guided.

Auf dem von der Gravur der Patrize 13 abgewandten Ende des Auswerfers 15 liegt ein in dem Stößel 6 verschieblich geführter Steuerstift 16, auf dessen von dem Auswerfer 15 abgewandtes Ende ein Schenkel 17 eines Winkelhebels 18 wirkt. Der Winkelhebel 18 ist auf einem Bolzen 19 in dem Stößel 6 schwenkbar gelagert. Der andere Schenkel 20 des Winkelhebels 18 trägt eine drehbare Rolle 21 und steht unter der Wirkung einer anderenends an dem Stößel 6 abgestützten Druckfeder 22, die die Rolle 21 in Anlage an einer Steuerkurve 23 hält.On the end of the ejector 15 facing away from the engraving of the male part 13 there is 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.

Die Steuerkurve 23 ist teilweise an einem austauschbaren Bauteil 24 gebildet, das an dem Steuerschlitten 9 lösbar befestigt ist. In dem Bauteil 24 ist ein Schieber 25 unter einem spitzen Winkel zu der Bewegungsrichtung des Steuerschlittens 9 verschieblich und feststellbar gelagert. Eine Fläche an dem Schieber 25 bildet einen weiteren Teil der Steuerkurve 23. Das Verschieben und Feststellen des Schiebers 25 in dem Bauteil 24 erfolgt durch eine in den Schieber 25 einschraubbare und in dem Bauteil 24 drehbar, aber in Längsrichtung unverschiebbar gelagerte Schraube 26, die zum Betätigen einen Vierkant 27 aufweist.The control cam 23 is partially formed on an exchangeable component 24 which is detachably fastened to the control slide 9. In the component 24, 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 Actuate has a square 27.

Die Länge der Steuerkurve 23, sowie die Winkellage und die Größe der Exzentrizitäten 4, (Kurbel) 7 sind derart bemessen, daß die Rolle 21 ständig in Anlage an der Steuerkurve 23 bleibt. Durch Wahl der Form und Verstellung der Steuerkurve 23 kann sowohl die Lage des Hubes des Auswerfers 15 im Verhältnis zu dem Hub des Stößels 6 als auch die Größe des Hubes des Auswerfers 15 verändert werden. Das Verstellen des Schiebers 25 allein bewirkt nur eine Veränderung der Größe des Hubes des Auswerfers 15; in ganz zurückgezogener Stellung des Schiebers 25 ist der Hub des Auswerfers 15 ein Minimum.The length of the control curve 23, as well as 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. By choosing the shape and adjustment of the control cam 23, both the position of the stroke of the ejector 15 in relation to the stroke of the plunger 6 and the size of the stroke of the ejector 15 can be changed. The adjustment of the slide 25 only causes a change in the size of the stroke of the ejector 15; in the fully retracted position of the slide 25, the stroke of the ejector 15 is a minimum.

Claims (7)

  1. Drive for a punch-side ejector (15, 16) which is displaceably mounted in a ram (6) of a mechanical forming press and has an angle lever (18) which is pivotably mounted in the ram (6) and whose one limb (17) acts on the end of the ejector (15, 16) averted from the punch (13) and whose other limb (20) is acted upon by a cyclically driven control cam (23) and is held bearing against the latter, the control cam (23) being provided on a control cam carrier (9) which is movably mounted in bearings fixed to the frame, characterised in that the control cam support is constructed as a control carriage (9) and the moveable bearing thereof is constructed as a rectilinear guide, fixed to the frame and extending parallel to the direction of movement of the ram (6), and in that acting on the control carriage (9) in a bearing is a control connecting rod (8) which is mounted at the other end eccentrically on a shaft (4, 7) also serving the drive of the ram (6).
  2. Drive according to Claim 1, characterised in that the control cam (23) is mounted on the control carriage (9) as an interchangeable component (24).
  3. Drive according to Claim 1 or 2, characterised in that the control cam (23) is mounted adjustably on the control carriage (24).
  4. Drive according to Claim 3, characterised in that the adjustability of the control cam (23) is realised by a slide guide (24), arranged at an angle to the guide fixed to the frame, on the control carriage (9), and by detachable fixing means (26).
  5. Drive according to Claim 3, characterised in that the adjustability of the control cam (23) is realised by a guide parallelogram on the control carriage (24) and by detachable fixing means (26).
  6. Drive according to Claim 3, characterised in that the adjustability of the control cam (23) is realised by a mating pair of two wedge surfaces which bear against one another, of which one is provided on the component (24) having the control cam (23) and of which the other is provided on the control carriage (9), and by detachable fixing means (26).
  7. Multiple application of a drive according to at least one of Claims 1 to 6 in a multistage forming press, characterised in that in a number equal to the number of stages angle levers (18) are mounted on a common shaft (19) and control cams (23) are provided on a common control carriage (9).
EP90102075A 1989-02-14 1990-02-02 Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press Expired - Lifetime EP0383111B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904278 1989-02-14
DE3904278A DE3904278A1 (en) 1989-02-14 1989-02-14 DRIVE FOR A EJECTOR ON THE PATTERN OF A MOLDING MECHANICAL MOLDING PRESSURE

Publications (3)

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

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EP90102075A Expired - Lifetime EP0383111B1 (en) 1989-02-14 1990-02-02 Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press

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US (1) US5065636A (en)
EP (1) EP0383111B1 (en)
DE (2) DE3904278A1 (en)
ES (1) ES2045588T3 (en)

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Publication number Priority date Publication date Assignee Title
DE19506521A1 (en) 1995-02-24 1996-08-29 Schuler Pressen Gmbh & Co Press, especially for massive forming
KR100642880B1 (en) * 1999-05-03 2006-11-10 밀라크론 인코포레이티드 Electrically driven apparatus for ejecting injection molded parts
DE19935657A1 (en) * 1999-07-29 2001-02-01 Schuler Pressen Gmbh & Co Press with ejector for different ejector strokes has lever transmission with force conversion device in force transfer path between transmission element and ejector
TWI464049B (en) * 2012-07-26 2014-12-11 Techwin Opto Electronics Co Ltd Injection Molding Machine Lever Mold Extrusion Mechanism
CN112008369B (en) * 2020-08-15 2021-12-10 温岭市微米自动化设备有限公司 Automatic bearing press fitting equipment

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Also Published As

Publication number Publication date
EP0383111A2 (en) 1990-08-22
ES2045588T3 (en) 1994-01-16
DE3904278A1 (en) 1990-08-16
US5065636A (en) 1991-11-19
EP0383111A3 (en) 1991-05-02
DE59002679D1 (en) 1993-10-21

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