EP0147652B1 - Hydraulic press for compressing glass fibre-reinforced mats of synthetic resin - Google Patents

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

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Publication number
EP0147652B1
EP0147652B1 EP84114412A EP84114412A EP0147652B1 EP 0147652 B1 EP0147652 B1 EP 0147652B1 EP 84114412 A EP84114412 A EP 84114412A EP 84114412 A EP84114412 A EP 84114412A EP 0147652 B1 EP0147652 B1 EP 0147652B1
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EP
European Patent Office
Prior art keywords
press
incl
clamping
stroke
hydraulic press
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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
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EP84114412A
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German (de)
French (fr)
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EP0147652A3 (en
EP0147652A2 (en
Inventor
Klaus Schmidts
Dieter Dipl.-Ing. Therolf
Ulrich Dr.-Ing. Weber
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Hoesch AG
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Hoesch AG
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Priority to AT84114412T priority Critical patent/ATE42238T1/en
Publication of EP0147652A2 publication Critical patent/EP0147652A2/en
Publication of EP0147652A3 publication Critical patent/EP0147652A3/en
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Publication of EP0147652B1 publication Critical patent/EP0147652B1/en
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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 to the displaceable press crossbar couplable press cylinders are arranged short strokes.
  • press cylinders are used in this press, each of which can be coupled to the displaceable press crossmember via a positive coupling.
  • Such form-locking couplings allow the coupling of the press cylinders to the displaceable press crossmember in each parting plane of the thread.
  • the distance between two adjacent parting planes of a single-start thread corresponds to the thread pitch.
  • This press design has the disadvantage that the short stroke of the press cylinder cannot always be used fully as a press stroke in the entire working stroke area of the press.
  • the loss of the press stroke in the entire working stroke area of each press is on average half the distance between two adjacent dividing planes.
  • the invention has for its object to design a press of the type mentioned so that the stroke of the press cylinder can be used as a press stroke in the entire working stroke area of the press.
  • this object is achieved in that two coupling rods, at least two fixed and at least two pressable clamping jaws and a clamping drive arranged between two pressable clamping jaws of two coupling rods are provided for coupling two press cylinders to the displaceable press crossmember.
  • the tension drive is designed with single-acting pistons.
  • Each pressable clamping jaw is movably arranged transversely to the direction of the press stroke.
  • each coupling rod is provided with at least one longitudinal slot, with at least one clamping plate being assigned to each longitudinal slot.
  • Each clamping plate is movably arranged transversely to the direction of the press stroke.
  • the document DD-A-46 153 discloses a hydraulic press, the laminated columns or tie rods of which are connected to an upper and lower spar. In such a press, a tension drive for the frictional connection is assigned to each end of your column or a tie rod.
  • the subject of the invention has the advantage that it only requires a single tensioning drive to produce the frictional connection on two coupling rods.
  • 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 short strokes 22 which can be coupled to the displaceable press crossmember 14 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.
  • the four press cylinders 18, 19, 20, 21 are arranged symmetrically to the press centers 26, 27.
  • Four joints 28, 29, 30, 31 establish the connection between the press cylinders 18, 19, 20, 21 and the fixed press crossmember 3.
  • Each press cylinder 18, 19, 20, 21 contains a piston rod 32, 33, 34, 35, each via a connecting sleeve 36, 37, 38, 39 to one Coupling rod 40, 41, 42, 43 is connected.
  • Each coupling rod 40, 41, 42, 43 can be coupled to the displaceable press crossmember 14 with a fixed clamping jaw 44, 45, 46, 47 and a compressible clamping jaw 48, 49, 50, 51.
  • the pressable clamping jaws 48, 49, 50, 51 are arranged in the displaceable press crossmember 14 such that they can be moved transversely to the pressing stroke direction 52.
  • Two press-on jaws 48, 49; 50, 51 are operatively connected to eight clamping cylinders 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66 67, 68 arranged one above the other.
  • Each clamping cylinder 53 to 68 has a single-acting piston 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84.
  • All clamping cylinders 53 to 68 are simultaneously supplied with pressure oil by a hydraulic unit 87.
  • the hydraulic unit 87 is composed essentially of a motor 88, a clutch 89, two pumps 90, 91, an oil reservoir 92. six valves 93, 94, 95, 96, 97, 98, a manometer 99 and an oil filter 100.
  • the clamping cylinders 53 to 68 are not acted upon by pressure oil.
  • the clamping movement of the clamping cylinders 53 to 68 is triggered by simultaneously switching the two valves 95, 96 and by switching on the motor 88.
  • a hydraulic press 101 contains a press frame 102 with a fixed press crossmember 103, two side parts 104, 105 and two crossbars 106, 107. Screws 108, 109 connect the side parts 104, 105 to the fixed press crossmember 103 and the crossbars 106, 107.
  • the two side parts 104, 105 each have two vertical guides 110, 111, 112, 113 for guiding a displaceable press crossmember 114.
  • An actuating cylinder 115 with a stroke length 117 corresponding to the working stroke 116 of the press 101 and four press cylinders 118, 119, 120, 121 with short strokes 122 that can be coupled to the displaceable press crossbar 114 are used to drive the displaceable press crossbar 114.
  • the adjusting cylinder 115 is articulated with its upper end 123 to a support 124 resting on the crossbars 106, 107. Its lower end 125 is articulated to the displaceable press crossmember 114.
  • the four press cylinders 118, 119, 120, 121 are arranged symmetrically to the press centers 126, 127.
  • Four joints 128, 129, 130, 131 establish the connection between the press cylinders 118, 119, 120, 121 and the fixed press crossmember 103.
  • Each press cylinder 118, 119, 120, 121 contains a piston rod 132, 133, 134, 135, which is connected via a connecting sleeve 136, 137, 138, 139 to a coupling rod 140, 141, 142, 143.
  • Each coupling rod 140, 141, 142, 143 can be coupled to the displaceable press crossbar 114 with a fixed clamping jaw 144, 145, 146, 147, a press-on clamping jaw 148, 149, 150, 151 and three clamping plates 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163.
  • the pressable clamping jaws 148, 149, 150, 151 and the clamping plates 152 to 163 are arranged in the displaceable press crossmember 114 such that they can be moved transversely to the pressing stroke direction 164.
  • Each coupling rod 140, 141, 142, 143 has three longitudinal slots 165 166, 167 168, 169, 170, 171, 172, 173, 174, 175, 176, in each of which a clamping plate 152 to 163 is effective.
  • Two press-on clamping jaws 148, 149, 150, 151 are operatively connected to three clamping cylinders 177, 178, 179, 180, 181, 182 arranged one above the other.
  • Each clamping cylinder 177 to 182 has a single-acting piston 183,184,185,186,187,188.
  • the hydraulic unit 191 essentially consists of a motor 192, a clutch 193, two pumps 194, 195, an oil tank 196, six valves 197, 198, 199, 200, 201, 202, a manometer 203 and an oil filter 204.
  • the clamping movement of the clamping cylinders 177 to 182 is triggered by switching the two valves 199, 200 simultaneously and by switching on the motor 192.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Reinforced Plastic Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

In a press an hydraulic adjusting cylinder connected to the slidable cross-piece of the press has a stroke matching the range of movement of the press and a number of hydraulic press cylinders of short stroke are provided for executing the working strokes of the press. The press cylinders are each couplable to the slidable cross-piece by a coupling including a coupling rod and a stationary clamping jaw and a pressable clamping jaw cooperating with the coupling rod, the pressable clamping jaw being activated by at least one single acting hydraulic cylinder.

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 an die verschiebbare Pressentraverse ankuppelbare Preßzylinder kurzen Hubs angeordnet 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 to the displaceable press crossbar couplable press cylinders are arranged short strokes.

Eine Presse der vorgenannten Art ist durch das Dokument US-A-4 304 540 bekannt.A press of the aforementioned kind is known from document US-A-4 304 540.

Zur Erzeugung des Preßhubs sind bei dieser Presse vier Preßzylinder eingesetzt, von denen jeder über eine Formschlußkupplung an die verschiebbare Pressentraverse kuppelbar ist.To generate the press stroke, four press cylinders are used in this press, each of which can be coupled to the displaceable press crossmember via a positive coupling.

Alle Formschlußkupplungen dieser Presse enthalten je eine Gewindestange.All form-fit couplings of this press each contain a threaded rod.

Derartige Formschlußkupplungen erlauben das Kuppeln der Preßzylinder an die verschiebbare Pressentraverse in jeder Teilungsebene des Gewindes.Such form-locking couplings allow the coupling of the press cylinders to the displaceable press crossmember in each parting plane of the thread.

Der Abstand zweier benachbarter Teilungsebenen eines eingängigen Gewindes entspricht der Gewindesteigung.The distance between two adjacent parting planes of a single-start thread corresponds to the thread pitch.

Dieser Pressenkonstruktion haftet der Nachteil an, daß der kurze Hub der Preßzylinder in dem gesamten Arbeitshubbereich der Presse nicht immer voll als Preßhub genutzt werden kann.This press design has the disadvantage that the short stroke of the press cylinder cannot always be used fully as a press stroke in the entire working stroke area of the press.

Der Preßhubverlust ist in dem gesamten Arbeitshubbereich einer jeden Presse durchschnittlich die Hälfte des Abstandes zweier benachbarter Teilungsebenen.The loss of the press stroke in the entire working stroke area of each press is on average half the distance between two adjacent dividing planes.

Der Erfindung liegt die Aufgabe zugrunde, eine Presse der eingangs genannten Art so auszubilden, daß der Hub der Preßzylinder in dem gesamten Arbeitshubbereich der Presse voll als Preßhub genutzt werden kann.The invention has for its object to design a press of the type mentioned so that the stroke of the press cylinder can be used as a press stroke in the entire working stroke area of the press.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß zum Kuppeln zweier Preßzylinder an die verschiebbare Pressentraverse zwei Kupplungsstangen, mindestens zwei feste und mindestens zwei andrückbare Spannbacken sowie ein jeweils zwischen zwei andrückbaren Spannbacken zweier Kupplungsstangen angeordneter Spannantrieb vorgesehen sind.According to the invention, this object is achieved in that two coupling rods, at least two fixed and at least two pressable clamping jaws and a clamping drive arranged between two pressable clamping jaws of two coupling rods are provided for coupling two press cylinders to the displaceable press crossmember.

Der Spannantrieb ist mit einfachwirkenden Kolben ausgeführt.The tension drive is designed with single-acting pistons.

Jede andrückbare Spannbacke ist quer zur Preßhubrichtung bewegbar angeordnet.Each pressable clamping jaw is movably arranged transversely to the direction of the press stroke.

Bei Übertragung großer Preßkräfte auf die verschiebbare Pressentraverse erhält jede Kupplungsstange mindestens einen Längsschlitz, wobei jedem Längsschlitz mindestens eine Spannplatte zugeordnet ist.When large pressing forces are transmitted to the displaceable press crossmember, each coupling rod is provided with at least one longitudinal slot, with at least one clamping plate being assigned to each longitudinal slot.

Jede Spannplatte ist quer zur Preßhubrichtung bewegbar angeordnet.Each clamping plate is movably arranged transversely to the direction of the press stroke.

Das Dokument DD-A-46 153 offenbart eine hydraulische Presse, deren lamellierte Säulen oder Zuganker mit einem Ober- und Unterholm verbunden sind. Bei einer solchen Presse ist jedem Ende eiher Säule oder eines Zugankers ein Spannantrieb für den Reibschluß zugeordnet.The document DD-A-46 153 discloses a hydraulic press, the laminated columns or tie rods of which are connected to an upper and lower spar. In such a press, a tension drive for the frictional connection is assigned to each end of your column or a tie rod.

Gegenüber einer solchen Ausführung weist der Erfindungsgegenstand den Vorteil auf, daß er zur Erzeugung des Reibschlusses an zwei Kupplungsstangen nur einen einzigen Spannantrieb benötigt.Compared to such an embodiment, the subject of the invention has the advantage that it only requires a single tensioning drive to produce the frictional connection on two coupling rods.

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 111 - 111 in Fig. 1 in vergrößertem Maßstab,
  • Fig. 4 einen Ausschnitt aus einem Hydraulikplan zu der in den Fig. 1 bis 3 dargestellten Presse.
  • 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 Teilschritt durch die Presse entsprechend der Linie VII - VII in Fig. 5 in vergrößertem Maßstab.
  • Fig. 8 einen Ausschnitt aus einem Hydraulikplan zu der in den Fig. 5 bis 7 dargestellten Presse.
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 111-111 in FIG. 1 on an enlarged scale,
  • Fig. 4 shows a section of a hydraulic plan for the press shown in Figs. 1 to 3.
  • Fig. 5 shows 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 shows a partial step through the press along the line VII - VII in Fig. 5 on an enlarged scale.
  • Fig. 8 shows a detail from a hydraulic plan for the press shown in Figs. 5 to 7.

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 sind ein Verstellzylinder 15 mit einer dem Arbeitshub 16 der Presse 1 entsprechenden Hublänge 17 und vier an die verschiebbare Pressentraverse 14 ankuppelbare Preßzylinder 18, 19, 20, 21 kurzen Hubs 22 eingesetzt.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 short strokes 22 which can be coupled to the displaceable press crossmember 14 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.

Die vier Preßzylinder 18, 19, 20, 21 sind symmetrisch zu den Pressenmitten 26, 27 angeordnet. Vier Gelenke 28, 29, 30, 31 stellen die Verbindung zwischen den Preßzylindern 18, 19, 20, 21 und der festen Pressentraverse 3 her.The four press cylinders 18, 19, 20, 21 are arranged symmetrically to the press centers 26, 27. Four joints 28, 29, 30, 31 establish the connection between the press cylinders 18, 19, 20, 21 and the fixed press crossmember 3.

Jeder Preßzylinder 18, 19, 20, 21 enthält eine Kolbenstange 32, 33, 34, 35, die über je eine Verbindungsmuffe 36, 37, 38, 39 an eine Kupplungsstange 40, 41, 42, 43 angeschlossen ist.Each press cylinder 18, 19, 20, 21 contains a piston rod 32, 33, 34, 35, each via a connecting sleeve 36, 37, 38, 39 to one Coupling rod 40, 41, 42, 43 is connected.

Jede Kupplungsstange 40, 41, 42, 43 ist an die verschiebbare Pressentraverse 14 kuppelbar mit einer festen Spannbacke 44, 45, 46, 47 und einer andrückbaren Spannbacke 48,49, 50, 51.Each coupling rod 40, 41, 42, 43 can be coupled to the displaceable press crossmember 14 with a fixed clamping jaw 44, 45, 46, 47 and a compressible clamping jaw 48, 49, 50, 51.

Die andrückbaren Spannbacken 48, 49, 50, 51 sind in der verschiebbaren Pressentraverse 14 quer zur Preßhubrichtung 52 bewegbar angeordnet.The pressable clamping jaws 48, 49, 50, 51 are arranged in the displaceable press crossmember 14 such that they can be moved transversely to the pressing stroke direction 52.

Jeweils zwei andrückbare Spannbacken 48, 49; 50, 51 stehen m it acht übereinander angeordneten Spannzylindern 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66 67, 68 in Wirkverbindung. Jeder Spannzylinder 53 bis 68 besitzt einen einfachwirkenden Kolben 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84.Two press-on jaws 48, 49; 50, 51 are operatively connected to eight clamping cylinders 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66 67, 68 arranged one above the other. Each clamping cylinder 53 to 68 has a single-acting piston 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84.

Alle Spannzylinder 53 bis 68, die über je eine Leitung 85 an einem Verteiler 86 angeschlossen sind, werden gleichzeitig von einem Hydraulikaggregat 87 mit Drucköl gespeist.All clamping cylinders 53 to 68, each of which is connected to a distributor 86 via a line 85, are simultaneously supplied with pressure oil by a hydraulic unit 87.

Das Hydraulikaggregat 87 setzt sich im wesentlichen aus einen Motor 88, einer Kupplung 89, zwei Pumpen 90, 91, einem Ölbehälter 92. sechs Ventilen 93, 94, 95, 96, 97, 98, einem Manom eter 99 und einem Ölfilter 100 zusammen.The hydraulic unit 87 is composed essentially of a motor 88, a clutch 89, two pumps 90, 91, an oil reservoir 92. six valves 93, 94, 95, 96, 97, 98, a manometer 99 and an oil filter 100.

In der dargestellten Schaltstellung der beiden Ventiele 95, 96 werden die Spannzylinder 53 bis 68 nicht m it Drucköl beaufschlagt. Die Spannbewegung der Spannzylinder 53 bis 68 wird ausgelöst durch gleichzeitiges Schalten der beiden Ventile 95, 96 und durch Einschalten des Motors 88.In the switching position of the two valves 95, 96 shown, the clamping cylinders 53 to 68 are not acted upon by pressure oil. The clamping movement of the clamping cylinders 53 to 68 is triggered by simultaneously switching the two valves 95, 96 and by switching on the motor 88.

2. Ausführungsbeispiel2nd embodiment

Eine hydraulische Presse 101 enthält ein Pressengerüst 102 mit einer festen Pressentraverse 103, zwei Seitenteilen 104,105 und zwei Querriegeln 106,107. Schrauben 108, 109 verbinden die Seitenteile 104, 105 mit der festen Pressentraverse 103 und den Querriegeln 106, 107.A hydraulic press 101 contains a press frame 102 with a fixed press crossmember 103, two side parts 104, 105 and two crossbars 106, 107. Screws 108, 109 connect the side parts 104, 105 to the fixed press crossmember 103 and the crossbars 106, 107.

Die beiden Seitenteile 104, 105 weisen je zwei senkrechte Führungen 110, 111, 112, 113 zum Führen einer verschiebbaren Pressentraverse 114 auf.The two side parts 104, 105 each have two vertical guides 110, 111, 112, 113 for guiding a displaceable press crossmember 114.

Zum Antrieb der verschiebbaren Pressentraverse 114 sind ein Verstellzylinder 115 m it einer dem Arbeitshub 116 der Presse 101 entsprechenden Hublänge 117 und vier an die verschiebbare Pressentraverse 114 ankuppelbare Preßzylinder 118, 119, 120, 121 kurzen Hubs 122 eingesetzt.An actuating cylinder 115 with a stroke length 117 corresponding to the working stroke 116 of the press 101 and four press cylinders 118, 119, 120, 121 with short strokes 122 that can be coupled to the displaceable press crossbar 114 are used to drive the displaceable press crossbar 114.

Der Verstellzylinder 115 ist mit seinem oberen Ende 123 an einem aufden Querriegeln 106, 107 ruhenden Auflager 124 gelenkig aufgehängt. Sein unteres Ende 125 ist gelenkig an die verschiebbare Pressentraverse 114 angeschlossen.The adjusting cylinder 115 is articulated with its upper end 123 to a support 124 resting on the crossbars 106, 107. Its lower end 125 is articulated to the displaceable press crossmember 114.

Die vier Preßzylinder 118,119,120,121 sind symmetrisch zu den Pressenmitten 126, 127 angeordnet. Vier Gelenke 128, 129, 130, 131 stellen die Verbindung zwischen den Preßzylindern 118, 119, 120, 121 und der festen Pressentraverse 103 her.The four press cylinders 118, 119, 120, 121 are arranged symmetrically to the press centers 126, 127. Four joints 128, 129, 130, 131 establish the connection between the press cylinders 118, 119, 120, 121 and the fixed press crossmember 103.

Jeder Preßzylinder 118, 119, 120, 121 enthält eine Kolbenstange 132, 133, 134, 135, die über je eine Verbindungsmuffe 136, 137, 138, 139 an eine Kupplungsstange 140, 141, 142, 143 angeschlossen ist.Each press cylinder 118, 119, 120, 121 contains a piston rod 132, 133, 134, 135, which is connected via a connecting sleeve 136, 137, 138, 139 to a coupling rod 140, 141, 142, 143.

Jede Kupplungsstange 140, 141, 142, 143, ist an die verschiebbare Pressentraverse 114 kuppelbar mit einer festen Spannbacke 144, 145, 146, 147, einer andrückbaren Spannbacke 148, 149, 150, 151 und drei Spannplatten 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163.Each coupling rod 140, 141, 142, 143 can be coupled to the displaceable press crossbar 114 with a fixed clamping jaw 144, 145, 146, 147, a press-on clamping jaw 148, 149, 150, 151 and three clamping plates 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163.

Die andrückbaren Spannbacken 148, 149, 150, 151 und die Spannplatten 152 bis 163 sind in der verschiebbaren Pressentraverse 114 quer zur Preßhubrichtung 164 bewegbar angeordnet.The pressable clamping jaws 148, 149, 150, 151 and the clamping plates 152 to 163 are arranged in the displaceable press crossmember 114 such that they can be moved transversely to the pressing stroke direction 164.

Jede Kupplungsstange 140, 141, 142, 143 weist drei Längsschlitze 165 166, 167 168, 169, 170, 171, 172, 173, 174, 175, 176 auf, in denen je eine Spannplatte 152 bis 163 wirksam ist.Each coupling rod 140, 141, 142, 143 has three longitudinal slots 165 166, 167 168, 169, 170, 171, 172, 173, 174, 175, 176, in each of which a clamping plate 152 to 163 is effective.

Jeweils zweiandrückbare Spannbacken 148, 149,150,151 stehen mit drei übereinander angeordneten Spannzylindern 177, 178, 179,180, 181, 182 in Wirkverbindung. Jeder Spannzylinder 177 bis 182 besitzt einen einfachwirkenden Kolben 183,184,185,186,187,188.Two press-on clamping jaws 148, 149, 150, 151 are operatively connected to three clamping cylinders 177, 178, 179, 180, 181, 182 arranged one above the other. Each clamping cylinder 177 to 182 has a single-acting piston 183,184,185,186,187,188.

Alle Spannzylinder 177 bis 182, die über je eine Leitung 189 an einen Verteiler 190 angeschlossen sind, werden gleichzeitig von einem Hydraulikaggregat 191 mit Drucköl gespeist.All tensioning cylinders 177 to 182, each of which is connected to a distributor 190 via a line 189, are simultaneously supplied with pressure oil by a hydraulic unit 191.

Das Hydraulikaggregat 191 setzt sich im wesentlichen aus einem Motor 192, einer Kupplung 193, zwei Pumpen 194, 195, einem Ölbehälter 196, sechs Ventilen 197, 198, 199, 200, 201, 202, einem Manom eter 203 und einem Ölfilter 204 zusammen.The hydraulic unit 191 essentially consists of a motor 192, a clutch 193, two pumps 194, 195, an oil tank 196, six valves 197, 198, 199, 200, 201, 202, a manometer 203 and an oil filter 204.

In der dargestellten Schaltstellung der beiden Ventile 199, 200 werden die Spannzylinder 177, 182 nicht mit Drucköl beaufschlagt.In the switching position of the two valves 199, 200 shown, the clamping cylinders 177, 182 are not acted upon by pressure oil.

Die Spannbewegung der Spannzylinder 177 bis 182 wird ausgelöst durch gleichzeitiges Schalten der beiden Ventiele 199,200 und durch Einschalten des Motors 192.The clamping movement of the clamping cylinders 177 to 182 is triggered by switching the two valves 199, 200 simultaneously and by switching on the motor 192.

Claims (5)

1. Hydraulic press for compressing glass fibre- reinforced mats of synthetic resin into shaped pieces with a fixed and an adjustable press yoke as well as a press drive, equipped with at least an adjusting cylinder with a stroke corresponding to the working stroke of the press for driving the adjustable press yoke and a minimum of two cylinders with short stroke that can be coupled to the adjustable press yoke characterised in that two coupling rods (40,41,42,42,140,141,142, 143), at least two fixed (44, 45, 46, 47, 144, 145, 146, 147) and at least two clamping jaws (48, 49, 50, 51, 148, 149, 150, 151) that can be located by pressure are prowided for coupling two pressing cylinders (18, 19, 20, 21, 118, 119, 120, 121) to the adjustable press yoke (14, 114) and a clamp drive mechanism (clamping cylinder 53 to 68 incl. und 177 to 182 incl.) installed between two clamping jaws (48, 49, 50, 51, 148, 149, 150, 151) that can be located by pressure of two ccupling rods (40,41, 42,43,140,141,142,143) in each case.
2. Hydraulic press as in claim 1 characterised in that the clamp drive mechanism (clamping cylinder 53 to 68 incl. and 177 to 182 incl.) is designed with single acting pistons (69 to 84 incl. and 183 to 188 incl.).
3. Hydraulic press as in claim 1 characterised in that each clamping jaw (48,49, 50, 51, 148, 149, 150,151) that can be located by pressure is mounted such that it can mowe transverse to the direction of the pressure stroke (53, 164).
4. Hydraulic press as in claim 1, characteristic in that each coupling rod (140, 141, 142, 143) has at least one elongated slot (165 to 176 incl.) and that each elongated slot (165 to 176 incl.) is allocated at least one clamping plate (152 to 163 incl.).
5. Hydraulic press as in claim 4, characterised in that each clamping plate (152 to 163 incl. is designed such that it can move transverse to the direction (164) of the pressure stroke.
EP84114412A 1983-12-31 1984-11-28 Hydraulic press for compressing glass fibre-reinforced mats of synthetic resin Expired EP0147652B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114412T ATE42238T1 (en) 1983-12-31 1984-11-28 HYDRAULIC PRESS FOR PRESSING FIBERGLASS REINFORCED PLASTIC MATS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838337753U DE8337753U1 (en) 1983-12-31 1983-12-31 HYDRAULIC PRESS FOR COMPRESSING PLASTIC MATS REINFORCED WITH FIBERGLASS
DE8337753U 1983-12-31

Publications (3)

Publication Number Publication Date
EP0147652A2 EP0147652A2 (en) 1985-07-10
EP0147652A3 EP0147652A3 (en) 1985-10-09
EP0147652B1 true EP0147652B1 (en) 1989-04-19

Family

ID=6760440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114412A Expired EP0147652B1 (en) 1983-12-31 1984-11-28 Hydraulic press for compressing glass fibre-reinforced mats of synthetic resin

Country Status (5)

Country Link
US (1) US4552524A (en)
EP (1) EP0147652B1 (en)
JP (1) JPS60232938A (en)
AT (1) ATE42238T1 (en)
DE (2) DE8337753U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432286C1 (en) * 1984-09-01 1985-08-22 Hoesch Ag, 4600 Dortmund Hydraulic press
DE3637544A1 (en) * 1986-11-04 1988-05-05 Dieffenbacher Gmbh Maschf Hydraulic high-speed lifting press
ATE55086T1 (en) * 1987-05-07 1990-08-15 Graebener Theodor Pressensyst PRESS, IN PARTICULAR FOR THE MANUFACTURE OF DIMENSIONAL PRESSINGS FROM POWDER MATERIALS, AND METHOD FOR OPERATION OF SUCH PRESS.
JPH0438972Y2 (en) * 1987-07-13 1992-09-11
IT1211575B (en) * 1987-12-03 1989-11-03 Fiat Auto Spa VERTICAL PRESS FOR THE MOLDING OF PLASTIC MATERIALS PARTICULARLY THERMO-HARD PLASTIC MATERIALS
DE102018111001A1 (en) * 2018-05-08 2019-11-14 Multivac Sepp Haggenmüller Se & Co. Kg PACKAGING MACHINE WITH BALANCING CYLINDER

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820250A (en) * 1954-06-16 1958-01-21 Adamson United Company Press
US2792592A (en) * 1954-11-08 1957-05-21 Guy P Harvey & Son Corp Clamping mechanism for molding machine
US2812543A (en) * 1955-04-12 1957-11-12 French Oil Mill Machinery Swinging head presses
CA959215A (en) * 1969-12-09 1974-12-17 Katashi Aoki Injection molding process and apparatus
US3868201A (en) * 1973-04-17 1975-02-25 Wickes Corp Powdered metal press
IT1030158B (en) * 1975-02-17 1979-03-30 Tapiform Spa MULTIPLE MACHINE FOR THE FORMING OF TEXTILE COATINGS FOR FLOORING OF VEHICLE AGITACLES
FR2413201A1 (en) * 1977-12-27 1979-07-27 Poncet Pierre Compression mould tools with ancillary consolidation rams - where the ram head forms non-planar mould profile
US4255113A (en) * 1980-02-05 1981-03-10 Hitachi, Ltd. Fluid-operated press
US4304540A (en) * 1980-09-15 1981-12-08 Hammon Carl K Hydraulic press

Also Published As

Publication number Publication date
EP0147652A3 (en) 1985-10-09
DE8337753U1 (en) 1985-04-11
ATE42238T1 (en) 1989-05-15
EP0147652A2 (en) 1985-07-10
JPS60232938A (en) 1985-11-19
US4552524A (en) 1985-11-12
DE3477752D1 (en) 1989-05-24

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