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WO1991014569A1 - Dispositif de fermeture actionne par un fluide - Google Patents

Dispositif de fermeture actionne par un fluide Download PDF

Info

Publication number
WO1991014569A1
WO1991014569A1 PCT/DE1991/000182 DE9100182W WO9114569A1 WO 1991014569 A1 WO1991014569 A1 WO 1991014569A1 DE 9100182 W DE9100182 W DE 9100182W WO 9114569 A1 WO9114569 A1 WO 9114569A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
fluid
press
plate
closing
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.)
Ceased
Application number
PCT/DE1991/000182
Other languages
German (de)
English (en)
Inventor
Kurt Bayha
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO1991014569A1 publication Critical patent/WO1991014569A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses
    • B27D3/02—Veneer presses; Press plates; Plywood presses with a plurality of press plates, i.e. multi- platen hot presses
    • 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
    • B30B1/003—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 an elastic bag or diaphragm expanded by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other

Definitions

  • the invention is based on a fluid operated closing device for presses, pressure vessels and the like according to the preamble of claim 1.
  • Presses and pressure vessels are known in which a press or closing plate can be raised and lowered hydraulically or pneumatically, wherein the plate rests on a piston which in turn is axially displaceable in a cylinder.
  • Bores and valves are assigned to the cylinder, by means of which either the cylinder space above the piston for the opening stroke or the cylinder space below the piston for the closing stroke can be pressurized.
  • the locking device according to the invention with the characterizing features of claim 1 has the advantage of a simple and inexpensive and maintenance-friendly construction. In addition, it is able to compensate for non-parallelism between the parts to be placed against one another. The amount of pressure and pressing force can be adjusted very precisely using a pressure regulator dose.
  • the proposed closing device is particularly suitable for laminating presses in which plates or foils are connected to one another under the influence of pressure and heat and, if necessary, brought into a predetermined shape.
  • the casing In order to achieve a positional fixation and uniform loading of the casing, it can be flanged into the support plate or connected to the surface of the pressing or closing plate, in particular glued. In order for the casing to withstand the stresses resulting from continuous use, it preferably consists of a multi-layer composite which has at least one pressure-tight, rubber-elastic layer. To fill the casing with a predetermined pressure and to reduce the pressure, it is provided with a connection for the fluid. A gas, in particular compressed air, is preferably used as the fluid.
  • the laminating press shown in the figure has a machine frame which consists of a lower flat plate 2 provided with feet 1, an upper flat plate 3 and four tie rods or columns 4 connecting the plates together.
  • a display and control panel 5 is placed on the upper plane plate.
  • On the underside of the upper plate 3, a heat-insulating plate 6 is attached, in which four guide rods 7 are anchored on one side.
  • the heat insulating plate 6 carries a first press plate 8 on its underside. Further press plates of the same design are designated 9 to 12. Each of these plates is provided with two guide parts 13 which are penetrated by the four guide rods 7.
  • the plates 8 to 12 have a predetermined distance from one another, which allows the laminating tools 16 equipped with laminates 15 to be inserted between two adjacent press plates.
  • the lowest press plate 13 sits on a heat insulating plate 18, which is supported with a bearing plate 19 on a closing device described in more detail below.
  • This device has a bellows 20 with a balloon-shaped sleeve 21, which consists of a pressure-tight, expandable material. The bottom of the case
  • the sleeve has a pressure medium connecting hose 23.
  • the hose 23 passes over a control valve and an adjustable pressure regulating valve 25 in order to restrict the inner pressure of the sleeve to a predetermined value.
  • the sleeve 21 When the press is open, the sleeve 21 is emptied via the control valve 26 to such an extent that the pressure plates 9 to 12 rest against the stops 14 with their guide parts under the action of gravity. In this position, the pressing tools 16 with the material to be pressed 15 can be inserted between two adjacent pressing plates 8, 9 or 9, 10 or 10, 11 or 11, 12.
  • the press shown in the exemplary embodiment can accommodate a total of 4 pressing tools 16, of which only one tool is shown for reasons of clarity. After the tools 16 have been inserted, the pressure in the casing 21 can be increased when the control valve 26 is actuated, in that pressure medium is supplied via the hose 23 and the pressure control valve 25.
  • the associated increase in volume of the sleeve 21 leads to the fact that the pressure plates 9 to 12 with the tools 16 seated thereon are pushed upwards on the guide rods 7 until the tool on the pressure plate 9 rests on the pressure plate 8 fixed to the device with a predetermined pressure.
  • the tools 16 located between the pressure plates 9 to 12 are also exposed to the same pressure.
  • the laminates 15 in the tools are laminated and / or deformed under pressure and heat. The latter is fed to the tools via the heated press plate 8 to 12.
  • the heating of the plates is not shown for reasons of clarity. It is preferably done electrically with thermostat control.
  • the control valve 26 is opened, so that pressure medium can flow out of the sleeve 21 via the hose 23.
  • the envelope volume is reduced and the pressing plates 9 to 12 with the tools 16 located thereon return under the effect of gravity to the starting position shown, in which the plates 9 to 12 rest against the stops 14 of the guide rods 7 and the tools from the Press can be removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Dispositif de fermeture actionné par un fluide, convenant aux presses, aux réservoirs sous pression, etc., comportant au moins une plaque de compression ou de fermeture (9 à 12) qui, sous la pression du fluide admis, passe d'une position initiale permettant l'alimentation de la presse ou du réservoir sous pression, à une position de compression ou de fermeture. Ledit dispositif de fermeture comporte un soufflet (20) avec une enveloppe de type ballon (21), fabriquée dans un matériau étanche à la pression, dont le volume se modifie en fonction de la quantité et/ou de la pression du fluide admis et qui est située entre une plaque de support (22) et la plaque de compression ou de fermeture mobile (12).
PCT/DE1991/000182 1990-03-23 1991-03-01 Dispositif de fermeture actionne par un fluide Ceased WO1991014569A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG9003398.1U 1990-03-23
DE9003398U DE9003398U1 (de) 1990-03-23 1990-03-23 Mit einem Fluid betriebene Schließvorrichtung

Publications (1)

Publication Number Publication Date
WO1991014569A1 true WO1991014569A1 (fr) 1991-10-03

Family

ID=6852267

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000182 Ceased WO1991014569A1 (fr) 1990-03-23 1991-03-01 Dispositif de fermeture actionne par un fluide

Country Status (2)

Country Link
DE (1) DE9003398U1 (fr)
WO (1) WO1991014569A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1609597A3 (fr) * 2004-06-04 2006-03-22 Meier Vakuumtechnik GmbH Presse pour fabriquer un corps multicouche

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034499B4 (de) * 2005-07-20 2011-03-31 Wickeder Westfalenstahl Gmbh Presspaketaufbau zum Verpressen von Multilayern bzw. Presse zur Verpressung bzw. Herstellung von Multilayern

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR10656E (fr) * 1906-10-19 1909-08-25 Wladimir Tatarinoff Presse hydraulique sans piston
US2148704A (en) * 1934-09-15 1939-02-28 Merritt Engineering & Sales Co Veneer press
US2217652A (en) * 1937-05-12 1940-10-08 Quick Gretta Laminating press
GB829271A (en) * 1957-04-30 1960-03-02 Kleber Colombes Improvements in or relating to vulcanizing presses
US3135998A (en) * 1960-11-03 1964-06-09 Jr Aubrey A Fowler Fluid pressure operated press
US3190215A (en) * 1964-05-11 1965-06-22 Reginald C Howard Fluid actuated press
DE2248810A1 (de) * 1972-10-05 1974-04-11 Wagener & Co Plattenpresse
US4190484A (en) * 1975-10-20 1980-02-26 Rembert Duvelius Press for producing shaped articles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056440A (en) * 1958-12-23 1962-10-02 Melio Ruben De Electronic press for making plywood in a continuous flow
DE1195480B (de) * 1963-08-29 1965-06-24 Eugen Siempelkamp Presse, insbesondere Etagenpresse
CA1027462A (fr) * 1974-11-29 1978-03-07 George F. Russell Presse colleuse a plateau mobile
DE2546944C3 (de) * 1975-10-20 1980-05-22 Duevelius, Rembert, 8133 Feldafing Heißplattenpresse mit Dehnkörper und Verfahren zur Herstellung desselben
FR2412395A1 (fr) * 1977-12-22 1979-07-20 Martin Jean Marie Machine pour le sechage et le jointage de placages en continu et par contact
NL7804000A (nl) * 1978-04-14 1979-10-16 Dijk Bv Gebr Van Pers voor panelen of andere lichamen met grote uitge- strektheid in verhouding tot de dikte.
DD144522A1 (de) * 1979-06-25 1980-10-22 Klaus Beyer Furnierpresse
FR2482894A2 (fr) * 1980-05-20 1981-11-27 Martin Jean Marie Machine pour le sechage et le jointage de placages en continu et par contact
JPS60151048A (ja) * 1984-01-19 1985-08-08 日立化成工業株式会社 積層板の製造法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR10656E (fr) * 1906-10-19 1909-08-25 Wladimir Tatarinoff Presse hydraulique sans piston
US2148704A (en) * 1934-09-15 1939-02-28 Merritt Engineering & Sales Co Veneer press
US2217652A (en) * 1937-05-12 1940-10-08 Quick Gretta Laminating press
GB829271A (en) * 1957-04-30 1960-03-02 Kleber Colombes Improvements in or relating to vulcanizing presses
US3135998A (en) * 1960-11-03 1964-06-09 Jr Aubrey A Fowler Fluid pressure operated press
US3190215A (en) * 1964-05-11 1965-06-22 Reginald C Howard Fluid actuated press
DE2248810A1 (de) * 1972-10-05 1974-04-11 Wagener & Co Plattenpresse
US4190484A (en) * 1975-10-20 1980-02-26 Rembert Duvelius Press for producing shaped articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1609597A3 (fr) * 2004-06-04 2006-03-22 Meier Vakuumtechnik GmbH Presse pour fabriquer un corps multicouche

Also Published As

Publication number Publication date
DE9003398U1 (de) 1991-07-25

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