EP0150487B1 - Hydraulic press for pressing glass fibre reinforced mats of synthetic resin - Google Patents

Hydraulic press for pressing glass fibre reinforced mats of synthetic resin Download PDF

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Publication number
EP0150487B1
EP0150487B1 EP84116218A EP84116218A EP0150487B1 EP 0150487 B1 EP0150487 B1 EP 0150487B1 EP 84116218 A EP84116218 A EP 84116218A EP 84116218 A EP84116218 A EP 84116218A EP 0150487 B1 EP0150487 B1 EP 0150487B1
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EP
European Patent Office
Prior art keywords
press
clamping
stroke
hydraulic press
coupling rod
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
EP84116218A
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German (de)
French (fr)
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EP0150487A2 (en
EP0150487A3 (en
Inventor
Dirk Dipl. Ing. Brinkmann
Wolfgang Dipl. Ing. Müller
Walter Dipl. Ing. Sauerwald
Klaus Schmidts
Dieter Dipl. Ing. Therolf
Ulrich Dr. Ing. 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.)
Maschinenfabrik J Dieffenbacher GmbH and Co
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Priority to AT84116218T priority Critical patent/ATE36133T1/en
Publication of EP0150487A2 publication Critical patent/EP0150487A2/en
Publication of EP0150487A3 publication Critical patent/EP0150487A3/en
Application granted granted Critical
Publication of EP0150487B1 publication Critical patent/EP0150487B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/323—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure using low pressure long stroke opening and closing means, and high pressure short stroke cylinder means

Definitions

  • the invention relates to a hydraulic press for pressing plastic mats reinforced with glass fibers into molded parts, with a fixed and a displaceable press crossmember and a press drive in which at least one adjusting cylinder with a stroke length corresponding to the working stroke of the press and at least two for driving the displaceable press crossmember Couplable press cylinders are arranged short strokes, a coupling rod and clamping means being used to couple each press cylinder to the displaceable press crossmember.
  • this press has four press cylinders, each of which is firmly connected to the coupling rod with its piston rod.
  • each coupling rod is coupled to the displaceable press crossmember with clamping means which are accommodated in the displaceable press crossmember.
  • Such a press stroke drive which is advantageous in itself, is not particularly suitable for retrofitting in a press.
  • the invention has for its object to design a press of the type mentioned in such a way that its press stroke drive is also more suitable for retrofitting in a press.
  • each press cylinder has a hollow lifting body through which the coupling rod is guided, and that a clamping device is arranged on the lifting body for coupling the lifting body to the coupling rod.
  • Each clamping device preferably contains a clamping sleeve to which a pressure medium can be applied.
  • Each lifting body is formed in a clamping area of the clamping sleeve with a plurality of longitudinal slots.
  • each tensioning device can also be equipped with a plurality of ring tensioning elements.
  • each clamping device is advantageously arranged between two ring pistons that can be pressurized with a pressure medium.
  • a hydraulic press 1 contains a press frame 2 with a fixed press crossmember 3, two side parts 4, 5 and two crossbars 6, 7. Screws 8, 9 connect the side parts 4, 5 with the fixed press crossmember 3 and the crossbars 6, 7.
  • the two side parts 4, 5 each have two vertical guides 10, 11, 12, 13 for guiding a displaceable press crossmember 14.
  • an adjusting cylinder 15 with a stroke length 17 corresponding to the working stroke 16 of the press 1 and four press cylinders 18, 19, 20, 21 with short strokes 22 are used.
  • the adjusting cylinder 15 is articulated with its upper end 23 to a support 24 resting on the crossbars 6, 7. Its lower end 25 is articulated to the displaceable press crossmember 14.
  • Each press cylinder 18, 19, 20, 21 has a housing flange 26, 27, 28, 29 which is fixedly connected to the fixed press crossmember 3.
  • the arrangement of the press cylinders 18, 19, 20, 21 is symmetrical to the press centers 30, 31.
  • Each press cylinder 18, 19, 20, 21 has a hollow lifting body 32, 33, 34, 35 with a piston 36, 37, 38, 39 and a cylindrical through-bore 40, 41, 42, 43.
  • a coupling rod 44, 45, 46, 47 with a round cross section is connected through each lifting body 32, 33, 34, 35 to the displaceable press crossmember 14.
  • each lifting body 32, 33, 34, 35 there is a hydraulic clamping device 48, 49, 50, 51, each with a clamping sleeve 52, 53, 54, 55.
  • all lifting bodies 32, 33, 34, 35 are each provided with eight longitudinal slots 56, 57, 58, 59.
  • the coupling of the lifting bodies 32, 33, 34, 35 to the coupling rods 44, 45, 46, 47 is achieved by pressurizing the annular spaces 60, 61, 62, 63 with oil.
  • the clamping sleeve 54 essentially braces the lifting body 34 with the coupling rod 46 in the region of the longitudinal slots 58.
  • the press crossmember 14 can then be moved within the short stroke 22.
  • a hydraulic press 64 contains a press frame 65 in which four vertical guides 66, 67, 68, 69 are arranged for guiding a displaceable press crossmember 70.
  • Two adjusting cylinders 71, 72 with a stroke length 74 corresponding to the working stroke 73 of the press 64 and four press cylinders 75, 76, 77, 78 short strokes 79 are used to drive the displaceable press crossmember 70.
  • Each adjusting cylinder 71, 72 is articulated with its upper end 80, 81 to a support 82, 83 connected to the press frame 65.
  • the lower end 84, 85 of each adjusting cylinder 71, 72 is connected in an articulated manner to the displaceable press crossmember 70 via a bearing 86, 87.
  • Each press cylinder 75, 76, 77, 78 has a housing flange 88, 89, 90, 91 which is fixedly connected to the press frame 65.
  • the arrangement of the adjusting cylinders 71, 72 and the press cylinders 75, 76, 77, 78 is symmetrical to the press centers 92, 93.
  • Each press cylinder 75, 76, 77, 78 has a hollow lifting body 94, 95, 96, 97 with a piston 98, 99, 100, 101 and a cylindrical through bore 102, 103, 104, 105.
  • a coupling rod 106, 107, 108, 109 of round cross-section is connected through each lifting body 94, 95, 96, 97 to the displaceable press crossmember 70.
  • a clamping device 110, 111, 112, 113, each with three ring clamping elements 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, is located on each lifting body 94, 95, 96, 97.
  • each clamping device 110, 111, 112, 113 are each arranged between two ring pistons 126, 127, 128, 129, 130, 131, 132, 133.
  • the coupling of the lifting bodies 94, 95, 96, 97 to the coupling rods 106, 107, 108, 109 is achieved by applying pressure oil to the annular pistons 126 to 133.

Abstract

An hydraulic press for pressing plastic mats reinforced with glass fibers into formed parts, which press has a stationary and a slidable cross-piece as well as a press drive which drive for driving the slidable cross-piece has at least one adjusting cylinder with a stroke length corresponding to the working range of the press and at least two couplable press cylinders of short stroke wherein for coupling each press cylinder to the slidable cross-piece a coupling rod and a clamping means is provided, the press being distinguished in that in order to better accomodate incorporation of the press drive into an existing press, each press cylinder has a hollow lifting body through which an associated coupling rod is guided, and for coupling the lifting body to the associated coupling rod a clamping device is included on the lifting body.

Description

Die Erfindung bezieht sich auf eine hydraulische Presse zum Verpressen von mit Glasfasern verstärkten Kunststoffmatten zu Formteilen, mit einer festen und einer verschiebbaren Pressentraverse sowie einem Pressenantrieb, bei der zum Antrieb der verschiebbaren Pressentraverse mindestens ein Verstellzylinder mit einer dem Arbeitshub der Presse entsprechenden Hublänge und mindestens zwei ankuppelbare Preßzylinder kurzen Hubs angeordnet sind, wobei zum Kuppeln eines jeden Preßzylinders an die verschiebbare Pressentraverse eine Kupplungsstange und Spannmittel eingesetzt sind.The invention relates to a hydraulic press for pressing plastic mats reinforced with glass fibers into molded parts, with a fixed and a displaceable press crossmember and a press drive in which at least one adjusting cylinder with a stroke length corresponding to the working stroke of the press and at least two for driving the displaceable press crossmember Couplable press cylinders are arranged short strokes, a coupling rod and clamping means being used to couple each press cylinder to the displaceable press crossmember.

Eine Presse der vorgenannten Art ist durch die US-A-4 304 450 bekannt.A press of the aforementioned kind is known from US-A-4 304 450.

Zur Erzeugung des Preßhubs besitzt diese Presse vier Preßzylinder, von denen jeder mit seiner Kolbenstange fest an die Kupplungsstange angeschlossen ist.To generate the press stroke, this press has four press cylinders, each of which is firmly connected to the coupling rod with its piston rod.

Hierbei erfolgt das Kuppeln jeder Kupplungsstange an die verschiebbare Pressentraverse mit Spannmitteln, die in der verschiebbaren Pressentraverse untergebracht sind.Here, each coupling rod is coupled to the displaceable press crossmember with clamping means which are accommodated in the displaceable press crossmember.

Ein solcher an sich vorteilhafter Preßhubantrieb ist für den nachträglichen Einbau in eine Presse nicht besonders gut geeignet.Such a press stroke drive, which is advantageous in itself, is not particularly suitable for retrofitting in a press.

Der Erfindung liegt die Aufgabe zugrunde, eine Presse der eingangs genannten Art so auszubilden, daß deren Preßhubantrieb auch für den nachträglichen Einbau in eine Presse besser geeignet ist.The invention has for its object to design a press of the type mentioned in such a way that its press stroke drive is also more suitable for retrofitting in a press.

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, daß jeder Preßzylinder einen hohlen Hubkörper aufweist, durch den die Kupplungsstange geführt ist, und daß zum Kuppeln des Hubkörpers an die Kupplungsstange eine Spannvorrichtung auf dem Hubkörper angeordnet ist.According to the invention, this object is achieved in that each press cylinder has a hollow lifting body through which the coupling rod is guided, and that a clamping device is arranged on the lifting body for coupling the lifting body to the coupling rod.

Vorzugsweise enthält jede Spannvorrichtung eine mit einem Druckmedium beaufschlagbare Spannhülse. ,Each clamping device preferably contains a clamping sleeve to which a pressure medium can be applied. ,

Jeder Hubkörper ist in einem Spannbereich der Spannhülse mit mehreren Längsschlitzen ausgebildet.Each lifting body is formed in a clamping area of the clamping sleeve with a plurality of longitudinal slots.

Es kann auch in Ausgestaltung des Erfindungsgedankens jede Spannvorrichtung mit mehreren Ringspannelementen ausgerüstet sein.In an embodiment of the inventive concept, each tensioning device can also be equipped with a plurality of ring tensioning elements.

Die Ringspannelemente einer jeden Spannvorrichtung sind dabei vorteilhaft zwischen zwei mit einem Druckmedium beaufschlagbaren Ringkolben angeordnet.The ring clamping elements of each clamping device are advantageously arranged between two ring pistons that can be pressurized with a pressure medium.

Im folgenden wird die Erfindung anhand einer Zeichnung, in der zwei Ausführungsbeispiele schematisch dargestellt sind, näher beschrieben.The invention is described in more detail below with reference to a drawing in which two exemplary embodiments are shown schematically.

Es zeigen

  • Fig. 1 eine hydraulische Presse in Ansicht als erstes Ausführungsbeispiel,
  • Fig. 2 eine Seitenansicht der Presse in Richtung des Pfeiles A in Fig. 1,
  • Fig. 3 einen Teilschnitt durch die Presse entsprechend der Linie lll-lll in Fig. 1 in vergrößertem Maßstab,
  • Fig. 4 einen Schnitt entsprechend der Linie IV-IV in Fig. 3,
  • Fig. 5 eine hydraulische Presse in Ansicht als zweites Ausführungsbeispiel,
  • Fig. 6 eine Seitenansicht der Presse in Richtung des Pfeiles B in Fig. 5,
  • Fig. 7 einen Teilschnitt durch die Presse entsprechend der Linie VII-VII in Fig. 5 in vergrößertem Maßstab.
Show it
  • 1 is a hydraulic press in view as the first embodiment,
  • 2 is a side view of the press in the direction of arrow A in Fig. 1,
  • 3 shows a partial section through the press along the line III-III in FIG. 1 on an enlarged scale,
  • 4 shows a section along the line IV-IV in FIG. 3,
  • 5 is a hydraulic press in view as a second embodiment,
  • 6 is a side view of the press in the direction of arrow B in Fig. 5,
  • Fig. 7 is a partial section through the press along the line VII-VII in Fig. 5 on an enlarged scale.

1. Ausführungsbeispiel1st embodiment

Eine hydraulische Presse 1 enthält ein Pressengerüst 2 mit einer festen Pressentraverse 3, zwei Seitenteilen 4, 5 und zwei Querriegeln 6, 7. Schrauben 8, 9 verbinden die Seitenteile 4, 5 mit der festen Pressentraverse 3 und den Querriegeln 6, 7.A hydraulic press 1 contains a press frame 2 with a fixed press crossmember 3, two side parts 4, 5 and two crossbars 6, 7. Screws 8, 9 connect the side parts 4, 5 with the fixed press crossmember 3 and the crossbars 6, 7.

Die beiden Seitenteile 4, 5 weisen je zwei senkrechte Führungen 10, 11, 12,13 zum Führen einer verschiebbaren Pressentraverse 14 auf.The two side parts 4, 5 each have two vertical guides 10, 11, 12, 13 for guiding a displaceable press crossmember 14.

Zum Antrieb der verschiebbaren Pressentraverse 14 werden ein Verstellzylinder 15 mit einer dem Arbeitshub 16 der Presse 1 entsprechenden Hublänge 17 und vier Preßzylinder 18,19,20,21 kurzen Hubs 22 benutzt.To drive the displaceable press crossmember 14, an adjusting cylinder 15 with a stroke length 17 corresponding to the working stroke 16 of the press 1 and four press cylinders 18, 19, 20, 21 with short strokes 22 are used.

Der Verstellzylinder 15 ist mit seinem oberen Ende 23 an einem auf den Querriegeln 6, 7 ruhenden Auflager 24 gelenkig aufgehängt. Sein unteres Ende 25 ist gelenkig an die verschiebbare Pressentraverse 14 angeschlossen.The adjusting cylinder 15 is articulated with its upper end 23 to a support 24 resting on the crossbars 6, 7. Its lower end 25 is articulated to the displaceable press crossmember 14.

Jeder Preßzylinder 18, 19, 20, 21 hat einen Gehäuseflansch 26, 27, 28, 29, der mit der festen Pressentraverse 3 fest verbunden ist.Each press cylinder 18, 19, 20, 21 has a housing flange 26, 27, 28, 29 which is fixedly connected to the fixed press crossmember 3.

Die Anordnung der Preßzylinder 18, 19, 20, 21 ist symmetrisch zu den Pressenmitten 30, 31.The arrangement of the press cylinders 18, 19, 20, 21 is symmetrical to the press centers 30, 31.

Jeder Preßzylinder 18, 19, 20, 21 besitzt einen hohlen Hubkörper 32, 33, 34, 35 mit einem Kolben 36, 37, 38, 39 und einer zylindrischen Durchgangsbohrung 40,41,42,43.Each press cylinder 18, 19, 20, 21 has a hollow lifting body 32, 33, 34, 35 with a piston 36, 37, 38, 39 and a cylindrical through-bore 40, 41, 42, 43.

Durch jeden Hubkörper 32, 33, 34, 35 ist jeweils eine an die verschiebbare Pressentraverse 14 angeschlossene Kupplungsstange 44, 45, 46, 47 runden Querschnitts geführt.A coupling rod 44, 45, 46, 47 with a round cross section is connected through each lifting body 32, 33, 34, 35 to the displaceable press crossmember 14.

Auf jedem Hubkörper 32, 33, 34, 35 befindet sich jeweils eine hydraulische Spannvorrichtung 48, 49, 50, 51 mit je einer Spannhülse 52, 53, 54, 55.On each lifting body 32, 33, 34, 35 there is a hydraulic clamping device 48, 49, 50, 51, each with a clamping sleeve 52, 53, 54, 55.

In dem mittleren Spannbereich der Spannhülsen 52, 53, 54, 55 sind alle Hubkörper 32, 33, 34, 35 mit je acht Längsschlitzen 56, 57, 58, 59 versehen.In the middle clamping area of the clamping sleeves 52, 53, 54, 55, all lifting bodies 32, 33, 34, 35 are each provided with eight longitudinal slots 56, 57, 58, 59.

Das Kuppeln der Hubkörper 32, 33, 34, 35 an die Kupplungsstangen 44, 45, 46, 47 wird erreicht durch Druckölbeaufschlagung der Ringräume 60, 61, 62,63.The coupling of the lifting bodies 32, 33, 34, 35 to the coupling rods 44, 45, 46, 47 is achieved by pressurizing the annular spaces 60, 61, 62, 63 with oil.

Dabei verspannt gemäß Fig. 3 die Spannhülse 54 im wesentlichen im Bereich der Längsschlitze 58 den Hubkörper 34 mit der Kupplungsstange 46. Durch Beaufschlagung des Kolbens 38 kann dann die Pressentraverse 14 innerhalb des kurzen Hubes 22 verfahren werden.3, the clamping sleeve 54 essentially braces the lifting body 34 with the coupling rod 46 in the region of the longitudinal slots 58. By pressing the piston 38, the press crossmember 14 can then be moved within the short stroke 22.

2. Ausführungsbeispiel2nd embodiment

Eine hydraulische Presse 64 enthält gemäß Fig. 5 und 6 einen Pressenrahmen 65, in dem vier senkrechte Führungen 66, 67, 68, 69 zum Führen einer verschiebbaren Pressentraverse 70 angeordnet sind.5 and 6, a hydraulic press 64 contains a press frame 65 in which four vertical guides 66, 67, 68, 69 are arranged for guiding a displaceable press crossmember 70.

Zum Antrieb der verschiebbaren Pressentraverse 70 werden zwei Verstellzylinder 71, 72 mit einer dem Arbeitshub 73 der Presse 64 entsprechenden Hublänge 74 und vier Preßzylinder 75, 76, 77, 78 kurzen Hubs 79 benutzt.Two adjusting cylinders 71, 72 with a stroke length 74 corresponding to the working stroke 73 of the press 64 and four press cylinders 75, 76, 77, 78 short strokes 79 are used to drive the displaceable press crossmember 70.

Jeder Verstellzylinder 71, 72 ist jeweils mit seinem oberen Ende 80, 81 an einem mit dem Pressenrahmen 65 verbundenen Auflager 82, 83 gelenkig aufgehängt. Das untere Ende 84,85 eines jeden Verstellzylinders 71, 72 ist jeweils über ein Lager 86, 87 gelenkig an die verschiebbare Pressentraverse 70 angeschlossen.Each adjusting cylinder 71, 72 is articulated with its upper end 80, 81 to a support 82, 83 connected to the press frame 65. The lower end 84, 85 of each adjusting cylinder 71, 72 is connected in an articulated manner to the displaceable press crossmember 70 via a bearing 86, 87.

Jeder Preßzylinder 75, 76, 77, 78 hat einen Gehäuseflansch 88, 89, 90, 91, der mit dem Pressenrahmen 65 fest verbunden ist.Each press cylinder 75, 76, 77, 78 has a housing flange 88, 89, 90, 91 which is fixedly connected to the press frame 65.

Die Anordnung der Verstellzylinder 71, 72 und der Preßzylinder 75, 76, 77, 78 ist symmetrisch zu den Pressenmitten 92, 93.The arrangement of the adjusting cylinders 71, 72 and the press cylinders 75, 76, 77, 78 is symmetrical to the press centers 92, 93.

Jeder Preßzylinder 75, 76, 77, 78 besitzt einen hohlen Hubkörper 94, 95, 96, 97 mit einem Kolben 98, 99, 100, 101 und einer zylindrischen Durchgangsbohrung 102, 103, 104, 105.Each press cylinder 75, 76, 77, 78 has a hollow lifting body 94, 95, 96, 97 with a piston 98, 99, 100, 101 and a cylindrical through bore 102, 103, 104, 105.

Durch jeden Hubkörper 94, 95, 96, 97 ist jeweils eine an die verschiebbare Pressentraverse 70 angeschlossene Kupplungsstange 106, 107, 108,109 runden Querschnitts geführt.A coupling rod 106, 107, 108, 109 of round cross-section is connected through each lifting body 94, 95, 96, 97 to the displaceable press crossmember 70.

Auf jedem Hubkörper 94, 95, 96, 97 befindet sich jeweils eine Spannvorrichtung 110, 111, 112, 113 mit je drei Ringspannelementen 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125.A clamping device 110, 111, 112, 113, each with three ring clamping elements 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, is located on each lifting body 94, 95, 96, 97.

Die Ringspannelemente 114 bis 125 einer jeden Spannvorrichtung 110, 111, 112,113 sind jeweils zwischen zwei Ringkolben 126, 127, 128, 129, 130, 131,132,133 angeordnet.The ring clamping elements 114 to 125 of each clamping device 110, 111, 112, 113 are each arranged between two ring pistons 126, 127, 128, 129, 130, 131, 132, 133.

Das Kuppeln der Hubkörper 94, 95, 96, 97 an die Kupplungsstangen 106, 107,108,109 wird erreicht durch Beaufschlagung der Ringkolben 126 bis 133 mit Drucköl.The coupling of the lifting bodies 94, 95, 96, 97 to the coupling rods 106, 107, 108, 109 is achieved by applying pressure oil to the annular pistons 126 to 133.

Dabei wird gemäß Fig. 7 durch Aufeinanderzubewegen der Ringspannelemente 120, 122 der Hubkörper 96 im wesentlichen im Bereich des Ringspannelementes 121 mit der Kupplungsstange 108 verspannt und gekuppelt. Durch Beaufschlagung des Kolbens 100 kann dann die Pressentraverse 70 innerhalb des kurzen Hubes 79 verfahren werden.7, by moving the ring clamping elements 120, 122 towards one another, the lifting body 96 is clamped and coupled to the coupling rod 108 essentially in the area of the ring clamping element 121. By pressing the piston 100, the press crossmember 70 can then be moved within the short stroke 79.

Claims (5)

1. A hydraulic press for moulding plastics mats reinforced with glass fibres into mouldings, comprising a fixed (3) and a movable (14, 70) platen as well as a press drive, in which press at least one adjusting cylinder (15, 71, 72) with a stroke length (17, 74) corresponding to the working stroke (16, 73) of the press and at least two couplable press cylinders (18, 19, 20, 21, 75, 76, 77, 78) of short stroke (22, 79) are arranged for driving the movable platen (14, 70), wherein a coupling rod (44, 45, 46, 47, 106, 107, 108, 109) and clamping means are used to couple each press cylinder to the movable platen (14, 70), characterized in that each press cylinder (18, 19, 20, 21, 75, 76, 77, 78) comprises a hollow stroke body (32, 33, 34, 35, 94, 95, 96, 97), through which the coupling rod (44, 45, 46, 47, 106, 107, 108, 109) is guided, and in that a clamping device (48, 49, 50, 51, 110, 111, 112, 113) is arranged on the stroke body (32, 33, 34, 35, 94, 95, 96, 97) for coupling the stroke body to the coupling rod.
2. A hydraulic press according to claim 1, characterized in that each clamping device (48, 49, 50, 51) comprises a clamping sleeve (52, 53, 54, 55) loadable with a pressure medium.
3. A hydraulic press according to claim 1 or claim 2, characterized in that each stroke body (32, 33, 34, 35) is provided in a clamping area of the clamping sleeve (52, 53, 54, 55) with several longitudinal slits (56, 57, 58, 59).
4. A hydraulic press according to claim 1, characterized in that each clamping device (110, 111, 112, 113) is provided with several annular clamping members (114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,125).
5. A hydraulic press according to claim 4, characterized in that the annular clamping members (114 to 123) of each clamping device (110,111.112,113) are each arranged between two annular pistons (126, 127, 128, 129, 130, 131, 132, 133) loadable with a pressure medium.
EP84116218A 1984-01-28 1984-12-22 Hydraulic press for pressing glass fibre reinforced mats of synthetic resin Expired EP0150487B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84116218T ATE36133T1 (en) 1984-01-28 1984-12-22 HYDRAULIC PRESS FOR PRESSING FIBERGLASS REINFORCED PLASTIC MATS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3403006 1984-01-28
DE3403006A DE3403006C2 (en) 1984-01-28 1984-01-28 Hydraulic press for pressing plastic mats reinforced with glass fibers

Publications (3)

Publication Number Publication Date
EP0150487A2 EP0150487A2 (en) 1985-08-07
EP0150487A3 EP0150487A3 (en) 1985-10-16
EP0150487B1 true EP0150487B1 (en) 1988-08-03

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EP84116218A Expired EP0150487B1 (en) 1984-01-28 1984-12-22 Hydraulic press for pressing glass fibre reinforced mats of synthetic resin

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Country Link
US (1) US4565517A (en)
EP (1) EP0150487B1 (en)
JP (1) JPS60242020A (en)
AT (1) ATE36133T1 (en)
DE (2) DE3403006C2 (en)

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US3531966A (en) * 1968-04-25 1970-10-06 Verson Allsteel Press Co Hydraulic press
DE6750643U (en) * 1968-08-27 1969-01-09 Griebel Gmbh & Co Kommanditges ROUND PILLAR GUIDE, IN PARTICULAR FOR PRESS BRAKES
US3599289A (en) * 1968-10-02 1971-08-17 Umberto Girola Mold-closing apparatus for molding machine
DE1901946A1 (en) * 1969-01-13 1972-03-02 Wilhelm Cyriax Form grinding device, especially for die casting and injection molding machines for metals and plastics
DE6930136U (en) * 1969-07-29 1969-12-04 Karl Hehl CLAMPING UNIT FOR THE MOLD OF A PLASTIC PROCESSING MACHINE
CA959215A (en) * 1969-12-09 1974-12-17 Katashi Aoki Injection molding process and apparatus
US3890081A (en) * 1971-08-02 1975-06-17 Litton Industrial Products Injection holding machine clamp mechanism
US4029457A (en) * 1974-06-17 1977-06-14 Toshiba Kikai Kabushiki Kaisha Molding machine
DE2605734C3 (en) * 1976-02-13 1978-07-20 Hasco-Normalien Hasenclever & Co, 5880 Luedenscheid Injection mold with mold jaws
US4304540A (en) * 1980-09-15 1981-12-08 Hammon Carl K Hydraulic press

Also Published As

Publication number Publication date
ATE36133T1 (en) 1988-08-15
EP0150487A2 (en) 1985-08-07
EP0150487A3 (en) 1985-10-16
JPH0579487B2 (en) 1993-11-02
DE3473126D1 (en) 1988-09-08
US4565517A (en) 1986-01-21
JPS60242020A (en) 1985-12-02
DE3403006A1 (en) 1985-08-08
DE3403006C2 (en) 1986-03-06

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