EP0051684B1 - Control for the clutch and/or the brake of a press - Google Patents

Control for the clutch and/or the brake of a press Download PDF

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Publication number
EP0051684B1
EP0051684B1 EP80106698A EP80106698A EP0051684B1 EP 0051684 B1 EP0051684 B1 EP 0051684B1 EP 80106698 A EP80106698 A EP 80106698A EP 80106698 A EP80106698 A EP 80106698A EP 0051684 B1 EP0051684 B1 EP 0051684B1
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EP
European Patent Office
Prior art keywords
pressure
clutch
brake
case
cylinder
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
Application number
EP80106698A
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German (de)
French (fr)
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EP0051684A1 (en
Inventor
Heinz Weber
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
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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
Priority to DE8080106698T priority Critical patent/DE3066630D1/en
Priority to AT80106698T priority patent/ATE6231T1/en
Priority to EP80106698A priority patent/EP0051684B1/en
Priority to BR8106922A priority patent/BR8106922A/en
Priority to ES506709A priority patent/ES506709A0/en
Publication of EP0051684A1 publication Critical patent/EP0051684A1/en
Application granted granted Critical
Publication of EP0051684B1 publication Critical patent/EP0051684B1/en
Priority to US06/664,254 priority patent/US4580674A/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/14—Control arrangements for mechanically-driven presses
    • B30B15/142—Control arrangements for mechanically-driven presses controlling the brake or the clutch

Definitions

  • the invention relates to a control for the clutch and / or brake on the main drive shaft of a press, in which a clutch cylinder or a brake cylinder counteracting the braking force until reaching the desired speed (operating speed or standstill) optionally by means of at least one valve, the can be controlled before reaching the desired speed (operating speed or standstill), at least two different pressures can be applied, one of which is at least approximately the maximum clutch pressure or the at least approximately pressure relief and the other is a partial pressure that is above the response pressure of the clutch or is below the back pressure canceling the response pressure of the brake.
  • the object of the invention is therefore to avoid this hard transition and its consequences by a softer transition to the desired speed (operating speed or standstill) without having to put up with an unacceptable delay in the entire coupling or braking process.
  • the solution to this problem according to the invention is based on the principle of temporarily adjusting the partial pressure during the period of time which includes reaching the desired speed (operating speed or standstill).
  • the solution to the problem mentioned is that the pressure during clutch or braking after reaching an intermediate pressure, which in the case of the clutch is between a value of at least 40% above the partial pressure and the maximum clutch pressure and in If the brake is between a value of at least 40% below the partial pressure and full pressure relief, before the desired speed (operating speed or standstill) is reached on the partial pressure for a period of time extending at least until the desired speed (operating speed or standstill) is reached is switchable.
  • the clutch or brake responds quickly at the start of the process and a high clutch or brake torque builds up quickly.
  • the subsequent changeover to the lower (clutch) or higher (brake) partial pressure leads to a decrease in the clutch or braking torque until the desired speed (operating speed or standstill) is reached, which results in the desired softer transition.
  • at least approximately the maximum clutch pressure or the at least approximately pressure relief is to be set again so that the full clutch torque is available for the operation of the press or the full braking torque for holding the ram and its drive elements.
  • the switching between the different pressures is not without inertia, that is, by leaps and bounds. It may also be expedient to carry out the switchovers in stages, for example from the intermediate pressure to the partial pressure.
  • the controller expediently contains a time control device which responds to speed, angle, time or pressure and during which the partial pressure is effective.
  • the action of the time control device and its switch-on time are to be dimensioned so that the desired speed (operating speed or standstill) is reached while the partial pressure is effective.
  • the switchovers between the different pressures can be carried out with smooth transitions, so that the vibrations that occur are kept to a minimum.
  • the control according to the invention can also be used with the same effects in a press, on the main drive shaft of a known clutch-brake combination (DE-PS 1207725) is provided, in which a cylinder simultaneously forms the clutch and the brake cylinder in which a piston, which alternately influences the clutch and the brake, is guided.
  • a known clutch-brake combination DE-PS 1207725
  • FIGS. 1 to 3 are diagrams of the course of the pressure p, the speed n and the Mo. mentes M over time t and in FIGS. 4 to 6 the controls themselves are shown schematically, with FIGS. 1 and 4 relating to a clutch, FIGS. 2 and 5 relating to a brake, FIGS. 3 and 6 relating to a clutch brake Combination.
  • the response pressure is represented by the horizontal line pA.
  • an intermediate pressure pZ is first controlled, whereby a quicker Increases the clutch or braking torque M to a relatively high value.
  • the subsequent changeover to a partial pressure pT leads to a drop in the clutch or braking torque M to a lower value, which is maintained until the desired speed n (operating speed or standstill) is reached, which results in the desired effect of a softer transition results in the target speed n (operating speed or standstill).
  • the pressure p is then switched to the maximum clutch pressure pM or pressure relief p0.
  • a pressure medium source consisting of a pressure medium delivery 1 and a pressure medium accumulator 2 is provided, which is connected via a pressure reducing valve 3 and a (conventional) press safety valve 4 to a cylinder in which a piston is guided.
  • the pressure reducing valve 3 is under the influence of a time control device or a program control (not shown in the drawing).
  • a clutch piston 6 is guided in the clutch cylinder 5, on which a compression spring 7 acts in the opening direction of the clutch and which influences the clutch in the closing direction via a piston rod 8.
  • a brake piston 10 is guided in the brake cylinder 9, on which a compression spring 11 acts in the closing direction of the brake and which influences the brake in the opening direction via a piston rod 12.
  • a clutch and brake piston 14 is guided in the cylinder 13, which also forms the clutch and the brake cylinder, on which a compression spring 15 acts in the opening direction of the clutch and at the same time in the closing direction of the brake and which is provided on both sides with a piston rod.
  • the piston rod 16 on the cylinder chamber side influences the brake in the opening direction
  • the piston rod 17 on the spring side influences the clutch in the closing direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A control arrangement for a clutch and/or brake of a press, with the control arrangement including at least one of a clutch cylinder piston unit and a brake cylinder piston unit which opposes braking forces until a desired rotational speed is reached. The cylinder-piston units may be operationally controlled by at least one valve before the desired rotational speed is reached. The control arrangement is driven by at least two different pressures, with one of the pressures being at least approximately equal to a maximum clutch pressure or at least approximately equal to a pressure release, and the other pressure being a partial pressure which lies above a minimum response pressure of the clutch or below a counter pressure which triggers a minimal response pressure of the brake. After an intermediate pressure is reached which, in the case of a clutch operation, lies between a value above the partial pressure and the clutch pressure, and with a brake operation, between a value below the partial pressure and a pressure release and, during a clutching and braking operation the pressure may still be switched, prior to a reaching of the desired rotational speed, to the partial pressure for a time period that it takes to obtain the desired rotational speed. The control arrangement may also be utilized in a combination clutch-brake construction with the respective pressures being set in the control arrangements on the basis of a program control which is operable in dependence upon operating parameters of the press.

Description

Die Erfindung bezieht sich auf eine Steuerung für die Kupplung und/oder Bremse an der Hauptantriebswelle einer Presse, bei der ein Kupplungszylinder bzw. ein der Bremskraft entgegenwirkender Bremszylinder bis zum Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand) wahlweise mittels mindestens eines Ventiles, das vor Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand) ansteuerbar ist, mit mindestens zwei verschiedenen Drücken beaufschlagbar ist, von denen der eine mindestens annähernd der maximale Kupplungsdruck bzw. die mindestens annähernde Druckentlastung und der andere ein Teildruck ist, der über dem Ansprechdruck der Kupplung bzw. unter dem den Ansprechdruck der Bremse aufhebenden Gegendruck liegt.The invention relates to a control for the clutch and / or brake on the main drive shaft of a press, in which a clutch cylinder or a brake cylinder counteracting the braking force until reaching the desired speed (operating speed or standstill) optionally by means of at least one valve, the can be controlled before reaching the desired speed (operating speed or standstill), at least two different pressures can be applied, one of which is at least approximately the maximum clutch pressure or the at least approximately pressure relief and the other is a partial pressure that is above the response pressure of the clutch or is below the back pressure canceling the response pressure of the brake.

Bei bekannten Steuerungen dieser Art (Kupplung: DE-OS 1502319, Bremse: DE-OS 1577264) wird - jedenfalls im Falle des normalen Betriebes - zunächst der Teildruck und erst danach mindestens annähernd der maximale Kupplungsdruck bzw. die mindestens annähernde Druckentlastung eingestellt, wodurch sich eine Verzögerung des Aufbaues des Kupplungsdruckes bzw. des Abbaues des Gegendruckes ergibt. Dies bewirkt, dass sich zu Beginn des Kuppelns bzw. Bremsens ein weicherer Eingriff der Kupplung bzw. Bremse ergibt. Bei den bekannten Steuerungen ist jedoch bei Beendigung des Kuppelns bzw. Bremsens mindestens annähernd der maximale Kupplungsdruck bzw. die mindestens annähernde Druckentlastung vorhanden, so dass sich beim Erreichen der angestrebten Drehzahl ein ziemlich harter Übergang zum Gleichlauf mit der Betriebsdrehzahl bzw. zum Stillstand ergibt.In known controls of this type (clutch: DE-OS 1502319, brake: DE-OS 1577264) - at least in the case of normal operation - the partial pressure is set first and only then at least approximately the maximum clutch pressure or the at least approximately pressure relief, which results in there is a delay in the build-up of the clutch pressure or the reduction in the back pressure. This causes a softer engagement of the clutch or brake at the beginning of the coupling or braking. In the known controls, however, at least approximately the maximum clutch pressure or the at least approximately pressure relief is present when the coupling or braking is ended, so that when the desired speed is reached there is a rather hard transition to synchronism with the operating speed or to standstill.

Messungen haben ergeben, dass dieser harte Übergang eine wesentliche Ursache für Schwingungen in den Antriebselementen der Presse und für Schwingungen des Stössels ist, wodurch eine merkliche und störende Lärmbelästigung hervorgerufen wird. Aufgabe der Erfindung ist es daher, diesen harten Übergang und dessen Folgen durch einen weicheren Übergang in die angestrebte Drehzahl (Betriebsdrehzahl bzw. Stillstand) zu vermeiden, ohne eine unzulässige Verzögerung des gesamten Vorganges des Kuppelns bzw. Bremsens in Kauf nehmen zu müssen.Measurements have shown that this hard transition is a major cause of vibrations in the drive elements of the press and for vibrations of the ram, which causes a noticeable and annoying noise pollution. The object of the invention is therefore to avoid this hard transition and its consequences by a softer transition to the desired speed (operating speed or standstill) without having to put up with an unacceptable delay in the entire coupling or braking process.

Die erfindungsgemässe Lösung dieser Aufgabe beruht auf dem Prinzip einer zeitweisen Einstellung des Teildruckes während des das Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand) umfassenden Zeitraumes. Bei einer Steuerung der eingangs genannten Art besteht die Lösung der genannten Aufgabe darin, dass der Druck während des Kuppelns bzw. Bremsens nach Erreichen eines Zwischendrukkes, der im Falle der Kupplung zwischen einem Wert um mindestens 40% über dem Teildruck und dem maximalen Kupplungsdruck und im Falle der Bremse zwischen einem Wert um mindestens 40% unter dem Teildruck und voller Druckentlastung liegt, noch vor Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand) auf den Teildruck für einen mindestens bis zum Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand) reichenden Zeitraum umschaltbar ist.The solution to this problem according to the invention is based on the principle of temporarily adjusting the partial pressure during the period of time which includes reaching the desired speed (operating speed or standstill). In the case of a control of the type mentioned at the outset, the solution to the problem mentioned is that the pressure during clutch or braking after reaching an intermediate pressure, which in the case of the clutch is between a value of at least 40% above the partial pressure and the maximum clutch pressure and in If the brake is between a value of at least 40% below the partial pressure and full pressure relief, before the desired speed (operating speed or standstill) is reached on the partial pressure for a period of time extending at least until the desired speed (operating speed or standstill) is reached is switchable.

Dadurch, dass zunächst der gegenüber dem Teildruck höhere (Kupplung) bzw. niedrigere (Bremse) Zwischendruck eingesteuert wird, ergibt sich bei Beginn des Vorganges ein rasches Ansprechen der Kupplung bzw. Bremse und ein rascher Aufbau eines hohen Kupplungs- bzw. Bremsmomentes. Die nachfolgende Umsteuerung auf den niedrigeren (Kupplung) bzw. höheren (Bremse) Teildruck führt zu einer Abnahme des Kupplungs- bzw. Bremsmomentes bis zum Erreichen der angestrebten Drehzahl (Betriebsdrehzahl bzw. Stillstand), wodurch sich der gewünschte weichere Übergang ergibt. Nachfolgend ist wieder mindestens annähernd der maximale Kupplungsdruck bzw. die mindestens annähernde Druckentlastung einzustellen, damit das volle Kupplungsmoment für den Arbeitsvorgang der Presse bzw. das volle Bremsmoment zum Halten des Stössels und seiner Antriebselemente zur Verfügung steht.Because the higher (clutch) or lower (brake) intermediate pressure is initially controlled, the clutch or brake responds quickly at the start of the process and a high clutch or brake torque builds up quickly. The subsequent changeover to the lower (clutch) or higher (brake) partial pressure leads to a decrease in the clutch or braking torque until the desired speed (operating speed or standstill) is reached, which results in the desired softer transition. Subsequently, at least approximately the maximum clutch pressure or the at least approximately pressure relief is to be set again so that the full clutch torque is available for the operation of the press or the full braking torque for holding the ram and its drive elements.

Selbstverständlich erfolgen die Umschaltungen zwischen den verschiedenen Drücken nicht trägheitslos, also sprunghaft. Es kann auch zweckmässig sein, die Umschaltungen, beispielsweise von dem Zwischendruck auf den Teildruck stufenweise vorzunehmen.Of course, the switching between the different pressures is not without inertia, that is, by leaps and bounds. It may also be expedient to carry out the switchovers in stages, for example from the intermediate pressure to the partial pressure.

Zweckmässigerweise enthält die Steuerung ein drehzahl-, winkel-, zeit- oder druckabhängig ansprechendes Zeitsteuergerät, während dessen Einschaltzeit der Teildruck wirksam ist. Der Wirkungseingriff des Zeitsteuergerätes und dessen Einschaltzeit sind so zu bemessen, dass die angestrebte Drehzahl (Betriebsdrehzahl bzw. Stillstand) erreicht wird, während der Teildruck wirksam ist.The controller expediently contains a time control device which responds to speed, angle, time or pressure and during which the partial pressure is effective. The action of the time control device and its switch-on time are to be dimensioned so that the desired speed (operating speed or standstill) is reached while the partial pressure is effective.

Durch Verwendung eines dem Kupplungszylinder bzw. dem Bremszylinder vorgeschalteten Proportionaldruckminderventiles, das aufgrund einer Programmsteuerung die Drücke einsteuert, lassen sich die Umschaltungen zwischen den verschiedenen Drücken mit weichen Übergängen durchführen, so dass die auftretenden Schwingungen auf ein Minimum begrenzt bleiben.By using a proportional pressure reducing valve upstream of the clutch cylinder or the brake cylinder, which controls the pressures due to a program control, the switchovers between the different pressures can be carried out with smooth transitions, so that the vibrations that occur are kept to a minimum.

Die Steuerung nach der Erfindung kann mit gleichen Wirkungen auch in einer Presse angewandt werden, an deren Hauptantriebswelle eine bekannte Kupplungs-Brems-Kombination (DE-PS 1207725) vorgesehen ist, in der ein Zylinder zugleich den Kupplungs- und den Bremszylinder bildet, in dem ein abwechselnd die Kupplung und die Bremse beeinflussender Kolben geführt ist.The control according to the invention can also be used with the same effects in a press, on the main drive shaft of a known clutch-brake combination (DE-PS 1207725) is provided, in which a cylinder simultaneously forms the clutch and the brake cylinder in which a piston, which alternately influences the clutch and the brake, is guided.

In der die Erfindung näher erläuternden Zeichnung sind in den Fig. 1 bis 3 Diagramme des Verlaufes des Druckes p, der Drehzahl n und des Momentes M über der Zeit t und in den Fig. 4 bis 6 die Steuerungen selbst schematisch dargestellt, wobei sich Fig. 1 und 4 auf eine Kupplung, Fig. 2 und 5 auf eine Bremse, Fig. 3 und 6 auf eine Kupplungs-Brems-Kombination beziehen.1 to 3 are diagrams of the course of the pressure p, the speed n and the Mo. mentes M over time t and in FIGS. 4 to 6 the controls themselves are shown schematically, with FIGS. 1 and 4 relating to a clutch, FIGS. 2 and 5 relating to a brake, FIGS. 3 and 6 relating to a clutch brake Combination.

In den drei Diagrammen (Fig. 1 bis 3) ist der Ansprechdruck jeweils durch die horizontale Linie pA dargestellt. Bei den vier in den drei Diagrammen dargestellten Vorgängen des Kuppelns (Fig. 1 und Fig. 3, linker Teil) und des Bremsens (Fig. 2 und Fig. 3, rechter Teil) wird jeweils zunächst ein Zwischendruck pZ eingesteuert, wodurch sich ein rascher Anstieg des Kupplungs- bzw. Bremsmomentes M auf einen verhältnismässig hohen Wert ergibt. Die jeweils folgende Umsteuerung auf einen Teildruck pT führt zu einem Abfall des Kupplungs- bzw. Bremsmomentes M auf einen niedrigeren Wert, der aufrechterhalten bleibt, bis die angestrebte Drehzahl n (Betriebsdrehzahl bzw. Stillstand) erreicht ist, wodurch sich die gewünschte Wirkung eines weicheren Überganges in die angestrebte Drehzahl n (Betriebsdrehzahl bzw. Stillstand) ergibt. Danach wird der Druck p auf den maximalen Kupplungsdruck pM bzw. Druckentlastung p0 umgesteuert.In the three diagrams (Fig. 1 to 3) the response pressure is represented by the horizontal line pA. In the four processes of coupling (Fig. 1 and Fig. 3, left part) and braking (Fig. 2 and Fig. 3, right part) shown in the three diagrams, an intermediate pressure pZ is first controlled, whereby a quicker Increases the clutch or braking torque M to a relatively high value. The subsequent changeover to a partial pressure pT leads to a drop in the clutch or braking torque M to a lower value, which is maintained until the desired speed n (operating speed or standstill) is reached, which results in the desired effect of a softer transition results in the target speed n (operating speed or standstill). The pressure p is then switched to the maximum clutch pressure pM or pressure relief p0.

In den Steuerungen (Fig. 4 bis 6) ist jeweils eine aus einer Druckmittelförderung 1 und einem Druckmittelspeicher 2 bestehende Druckmittelquelle vorgesehen, die über ein Druckminderventil 3 und ein (übliches) Pressensicherheitsventil 4 an einen Zylinder angeschlossen ist, in dem ein Kolben geführt ist. Das Druckminderventil 3 steht unter Einfluss eines Zeitsteuergerätes oder einer Programmsteuerung (in der Zeichnung nicht dargestellt).In the controls (FIGS. 4 to 6), a pressure medium source consisting of a pressure medium delivery 1 and a pressure medium accumulator 2 is provided, which is connected via a pressure reducing valve 3 and a (conventional) press safety valve 4 to a cylinder in which a piston is guided. The pressure reducing valve 3 is under the influence of a time control device or a program control (not shown in the drawing).

Im Falle einer Kupplung (Fig. 4) ist in dem Kupplungszylinder 5 ein Kupplungskolben 6 geführt, auf den eine Druckfeder 7 im Öffnungssinne der Kupplung wirkt und der über eine Kolbenstange 8 die Kupplung im Schliessinne beeinflusst.In the case of a clutch (FIG. 4), a clutch piston 6 is guided in the clutch cylinder 5, on which a compression spring 7 acts in the opening direction of the clutch and which influences the clutch in the closing direction via a piston rod 8.

Im Falle einer Bremse (Fig. 5) ist in dem Bremszylinder 9 ein Bremskolben 10 geführt, auf den eine Druckfeder 11 im Schliessinne der Bremse wirkt und der über eine Kolbenstange 12 die Bremse im Öffnungssinne beeinflusst.In the case of a brake (FIG. 5), a brake piston 10 is guided in the brake cylinder 9, on which a compression spring 11 acts in the closing direction of the brake and which influences the brake in the opening direction via a piston rod 12.

Im Falle einer Kupplungs-Brems-Kombination (Fig. 6) ist in dem zugleich den Kupplungs- und den Bremszylinder bildenden Zylinder 13 ein Kupplungs- und Bremskolben 14 geführt, auf den eine Druckfeder 15 im Öffnungssinne der Kupplung und zugleich im Schliessinne der Bremse wirkt und der beiderseits je mit einer Kolbenstange versehen ist. Die zylinderraumseitige Kolbenstange 16 beeinflusst die Bremse im Öffnungssinne, während die federseitige Kolbenstange 17 die Kupplung im Schliessinne beeinflusst.In the case of a clutch-brake combination (FIG. 6), a clutch and brake piston 14 is guided in the cylinder 13, which also forms the clutch and the brake cylinder, on which a compression spring 15 acts in the opening direction of the clutch and at the same time in the closing direction of the brake and which is provided on both sides with a piston rod. The piston rod 16 on the cylinder chamber side influences the brake in the opening direction, while the piston rod 17 on the spring side influences the clutch in the closing direction.

Claims (4)

1. System for controlling the clutch and/or the brake on the main drive shaft of a press, where at least two different pressures can be applied to a clutch cylinder (5) or, as the case may be, to a brake cylinder (9) acting counter to the brake force, according to choice, by means of at least one valve (3) which can be activated before the desired speed of rotation n is attained (operating speed or standstill, as the case may be), until the desired speed of rotation n is attained (operating speed or standstill, as the case may be), one of these two pressures being at least approximately the maximum clutch pressure pM or, as the case may be, at least the approximate relief pressure pO, and the other being a partial pressure pT which exceeds the pressure pA at which the clutch reacts or, as the case may be, is less than the counter-pressure which cancels the pressure pA at which the brake reacts, characterised in that, during the process of operating the clutch or, as the case may be, the brake, and following the attainment of an intermediate pressure pZ which, in the case of the clutch, lies between a value exceeding the partial pressure pT by at least 40% and the maximum clutch pressure pM, and which, in the case of the brake, lies between a value which is at least 40% less than the partial pressure pT and the pressure pO corresponding to full pressure-relief, the pressure p can be switched over, even before the desired speed of rotation n is attained (operating speed or standstill, as the case may be), to the partial pressure pT, for a period extending up to at least the instant at which the desired speed of rotation n (operating speed or standstill, as the case may be) is attained.
2. Control system according to Claim 1, characterised in that a timing device is provided, which reacts in accordance with the speed of rotation, an angle, time, or pressure, the partial pressure pT acting during the period over which this timing device is switched on.
3. Control system according to Claim 1, characterised in that a pressure-reducing valve (3), of the proportional type, is connected upstream of the clutch cylinder (5) or as the case may be, upstream of the brake cylinder (9), this pressure-reducing valve (3) regulating the pressures p un- derthe control of a programmable control unit.
4. Use of the control system according to one of the preceding claims, on a combined clutch/ brake unit, installed on the main drive shaft of a press, in which combined unit one cylinder (13) simultaneously forms the clutch cylinder and the brake cylinder, in which cylinder (13) a piston (14) is housed, this piston (14) alternatively influencing the clutch and the brake.
EP80106698A 1980-10-31 1980-10-31 Control for the clutch and/or the brake of a press Expired EP0051684B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE8080106698T DE3066630D1 (en) 1980-10-31 1980-10-31 Control for the clutch and/or the brake of a press
AT80106698T ATE6231T1 (en) 1980-10-31 1980-10-31 CONTROL FOR THE CLUTCH AND/OR BRAKE OF A PRESS.
EP80106698A EP0051684B1 (en) 1980-10-31 1980-10-31 Control for the clutch and/or the brake of a press
BR8106922A BR8106922A (en) 1980-10-31 1981-10-27 COMMAND FOR COUPLING AND / OR BRAKING A PRESS
ES506709A ES506709A0 (en) 1980-10-31 1981-10-30 CONTROL PROVISION FOR THE CLUTCH AND-OR BRAKE IN THE MAIN PROPULSION TREE OF A PRESS
US06/664,254 US4580674A (en) 1980-10-31 1984-10-24 Control arrangement for the actuating pressure applied to a clutch and/or brake of a mechanical press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80106698A EP0051684B1 (en) 1980-10-31 1980-10-31 Control for the clutch and/or the brake of a press

Publications (2)

Publication Number Publication Date
EP0051684A1 EP0051684A1 (en) 1982-05-19
EP0051684B1 true EP0051684B1 (en) 1984-02-15

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ID=8186867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106698A Expired EP0051684B1 (en) 1980-10-31 1980-10-31 Control for the clutch and/or the brake of a press

Country Status (6)

Country Link
US (1) US4580674A (en)
EP (1) EP0051684B1 (en)
AT (1) ATE6231T1 (en)
BR (1) BR8106922A (en)
DE (1) DE3066630D1 (en)
ES (1) ES506709A0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523163A1 (en) * 1984-07-19 1986-02-13 ZF-Herion-Systemtechnik GmbH, 7990 Friedrichshafen PRESSURE CONTROL DEVICE FOR A HYDRAULICALLY OPERABLE CLUTCH AND / OR BRAKE OF THE DRIVE SHAFT OF A PRESS
US5291977A (en) * 1992-07-27 1994-03-08 Midwest Brake Bond Co. Electrically actuated clutch brake apparatus
US5487458A (en) * 1993-11-03 1996-01-30 Midwest Brake Bond Company Electrically energized oil shear drive system
ES2110332B1 (en) * 1994-02-07 1998-08-01 Coop Goizper S IMPROVEMENTS IN HYDRAULIC BRAKES-CLUTCH.
ATE207582T1 (en) * 1994-05-13 2001-11-15 Midwest Brake Bond Co PRESS DRIVE WITH CLUTCH-BRAKE COMBINATION RUNNING IN OIL BATH
US5651436A (en) * 1995-04-20 1997-07-29 Midwest Brake Bond Company Brake and clutch control system
US5680915A (en) * 1996-01-31 1997-10-28 Midwest Brake Bond Company Brake and clutch control system
DE19831144A1 (en) * 1998-07-11 2000-01-13 Mannesmann Rexroth Ag Hydraulic control for a hydraulically operated clutch / brake combination for the drive shaft of a mechanical press
DE50110744D1 (en) * 2000-12-02 2006-09-28 Mannesmann Rexroth Ag Hydraulic control for a hydraulically actuated clutch brake combination, in particular on the eccentric shaft of a mechanical press
DE102006050300B4 (en) * 2006-10-23 2013-05-08 Ortlinghaus-Werke Gmbh Pressure fluid operated circuit

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Also Published As

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US4580674A (en) 1986-04-08
EP0051684A1 (en) 1982-05-19
ES8206273A1 (en) 1982-08-16
BR8106922A (en) 1982-07-13
DE3066630D1 (en) 1984-03-22
ES506709A0 (en) 1982-08-16
ATE6231T1 (en) 1984-03-15

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