EP0234049B1 - Gummikissen-Presse - Google Patents

Gummikissen-Presse Download PDF

Info

Publication number
EP0234049B1
EP0234049B1 EP86118184A EP86118184A EP0234049B1 EP 0234049 B1 EP0234049 B1 EP 0234049B1 EP 86118184 A EP86118184 A EP 86118184A EP 86118184 A EP86118184 A EP 86118184A EP 0234049 B1 EP0234049 B1 EP 0234049B1
Authority
EP
European Patent Office
Prior art keywords
piston
rubber cushion
press
cylinder
cylinder device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86118184A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0234049A2 (de
EP0234049A3 (en
Inventor
Erich Nacke
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.)
SIEMPELKAMP PRESSEN SYSTEME GmbH AND Co
Original Assignee
SIEMPELKAMP PRESSEN SYSTEME GmbH AND Co
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 SIEMPELKAMP PRESSEN SYSTEME GmbH AND Co filed Critical SIEMPELKAMP PRESSEN SYSTEME GmbH AND Co
Publication of EP0234049A2 publication Critical patent/EP0234049A2/de
Publication of EP0234049A3 publication Critical patent/EP0234049A3/de
Application granted granted Critical
Publication of EP0234049B1 publication Critical patent/EP0234049B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads

Definitions

  • the invention relates generically to a rubber cushion press with upper spar, lower spar and working cylinder piston arrangement, the upper spar and lower spar being combined by means of tie rods to form a press frame, the lower spar furthermore carrying a table and a tool arranged thereon, and wherein in the upper spar a receiving case with device for the support of the inside of the case and the rubber cushion are arranged in this receiving case.
  • the lower beam has the cylinder of the working cylinder piston arrangement.
  • the piston guided in it carries the table with the tool.
  • the storage case for the rubber cushion is located in the upper spar.
  • the device for supporting the inside pressure of the case when working the rubber pillow press consists of a bandage which surrounds the upper spar in the area of the receiving case.
  • the bandage forms an additional, mechanical component that has to be manufactured and assembled in a complex manner. It must also be designed for the highest working pressure of the rubber cushion press and does not automatically adjust to the stress to be absorbed and the deformation of the receiving case.
  • a device for supporting the inside pressure of the case ensures that the upper spar in the area of the receiving case is not prematurely destroyed by overload.
  • the invention has for its object to further develop a generic rubber cushion press so that a special bandage that surrounds the upper spar is no longer required for the inclusion of the case pressure and an adjustment of the support to the working pressure takes place by itself.
  • the invention teaches that the upper spar has the cylinder of the working cylinder piston arrangement, in which the piston of the working cylinder piston arrangement can be moved up and down, that the receiving case is arranged in the piston or in a piston extension, and that the outer peripheral surface of the piston is opposite the upper spar forms an annular space which is acted upon by the pressure medium of the working cylinder piston arrangement for the support and forwarding of the case pressure.
  • the piston of the working cylinder piston arrangement is expediently guided in the cylinder so that it cannot rotate.
  • the rubber cushion must also be replaced from time to time in the case of the invention.
  • the rubber cushion is otherwise covered by strips or the like.
  • the pressure applied to the outside of the piston in the area of the receiving case can be adjusted with regard to its effective range, so that it can be adapted to different operating conditions.
  • the invention teaches that the piston or the piston extension on the outer circumference has a height-adjustable seal on the tool side.
  • a preferred embodiment of the invention which allows the inclusion of a relatively large rubber cushion, is characterized in that the piston together with the piston extension and correspondingly the cylinder space has a hat-shaped shape Have axial cross section, the receiving case is arranged in the region of the larger diameter, and that the annular space surrounds the region of the larger diameter and is continued via the transition between the region of the larger diameter and the smaller diameter.
  • the invention uses the knowledge that in a rubber cushion press of the generic construction, the hydraulic pressure medium can perform an additional function, namely to support the inner pressure of the case if, as described, an annular space is provided and the pressure medium of the working cylinder piston arrangement when working the rubber cushion press is introduced into this annulus. This automatically adjusts to the working pressure.
  • the inside pressure of the case is absorbed by the upper spar via the pressure medium. Due to the height adjustment of the seal, which surrounds the piston or the piston extension on the outer circumference on the tool side, it can be easily adapted to different operating conditions.
  • the structure described also allows the piston to be provided with relatively thin piston walls in the area of the receiving case.
  • the single figure shows a schematic representation of an axial section through a rubber cushion press.
  • the rubber pillow press shown in the figure initially includes an upper beam 1, a lower beam 2 and a working cylinder piston arrangement 3.
  • the upper beam 1 and the lower beam 2 are by means of Tie rod 4 combined into a press frame.
  • the lower spar 2 carries a table 5 and a tool 6 arranged thereon.
  • In the upper spar 1 there is a receiving case 7 with a device for supporting the inside pressure of the case.
  • the rubber cushion 8 is arranged in this receiving case 7.
  • the arrangement is such that the upper spar 1 has the cylinder 9 of the working cylinder piston arrangement 3, in which the piston 10 of the working cylinder piston arrangement 3 can be moved up and down.
  • the receiving case 7 for the rubber cushion 8 is located in the piston 10 or in a piston extension 11.
  • the outer circumferential surface of the receiving case 7 forms an annular space 12 with respect to the upper spar 1, which is acted upon by the pressure medium of the working cylinder piston arrangement 3 for supporting and transmitting the inside pressure of the case .
  • the piston 10 of the working cylinder piston arrangement 3 is guided in the cylinder 9 in a rotationally fixed manner, for which purpose the pin 13 is provided.
  • an ejection cylinder piston arrangement 14 for ejecting the rubber cushion 8 from the receiving case when the rubber cushion 8 has to be replaced. It is otherwise covered by strips 15.
  • the piston 10 or the piston extension 11 has a seal 16 on the outer circumference on the tool side, which seals the annular space 12.
  • This seal can be adjusted in height by insert parts 17 and is otherwise fixed by a retaining ring 18. By adjusting the height of the seal 16, it can be adapted to different operating conditions.
  • the arrangement is such that the piston 10 together with the piston extension and accordingly the cylinder space have a hat-shaped axial cross section.
  • the receiving case 7 is arranged in the region of the larger diameter D.
  • the annular space 12 consequently also surrounds the region of the larger diameter D, but it extends over the transition 19 between the region of the larger diameter D and that of the smaller diameter d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP86118184A 1986-02-22 1986-12-31 Gummikissen-Presse Expired - Lifetime EP0234049B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863605728 DE3605728A1 (de) 1986-02-22 1986-02-22 Gummikissen-presse
DE3605728 1986-02-22

Publications (3)

Publication Number Publication Date
EP0234049A2 EP0234049A2 (de) 1987-09-02
EP0234049A3 EP0234049A3 (en) 1989-02-08
EP0234049B1 true EP0234049B1 (de) 1991-03-27

Family

ID=6294704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86118184A Expired - Lifetime EP0234049B1 (de) 1986-02-22 1986-12-31 Gummikissen-Presse

Country Status (4)

Country Link
US (1) US4829807A (enrdf_load_stackoverflow)
EP (1) EP0234049B1 (enrdf_load_stackoverflow)
JP (1) JPS62296996A (enrdf_load_stackoverflow)
DE (1) DE3605728A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501600A (en) * 1994-09-22 1996-03-26 Johnson; Paul W. Method of laminating a porcelain veneer to a tooth
US6233989B1 (en) 2000-10-13 2001-05-22 Changing Paradigms, Llc Method and apparatus for stamping a metal sheet with an apertured design having rolled edges
EP4387785A4 (en) * 2021-12-06 2024-12-18 Coskunöz Kalip Makina Sanayi ve Ticaret Anonim Sirketi METHOD OF MAKING A MOLD

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE93318C (enrdf_load_stackoverflow) *
FR875339A (fr) * 1939-10-13 1942-09-16 Focke Wulf Flugzeugbau Gmbh Dispositif pour l'emboutissage de pièces de tôle
US2840025A (en) * 1953-08-04 1958-06-24 Baldwin Lima Hamilton Corp Mounting for resilient press pads of polygonal cross-section
US2966873A (en) * 1955-01-11 1961-01-03 Lockheed Aircraft Corp Device for forming sheet material
US3120205A (en) * 1956-02-07 1964-02-04 Gen Tire & Rubber Co Forming pad for hydraulic press
US3224042A (en) * 1963-10-23 1965-12-21 Barogenics Inc Hydrostatic pressure device
US3490344A (en) * 1967-07-10 1970-01-20 Western Electric Co Pressure vessel
US3681958A (en) * 1970-10-15 1972-08-08 Grumman Aerospace Corp High pressure forming press
SE391483B (sv) * 1975-06-24 1977-02-21 Asea Ab Press med expanderbar tryckcell och formdyna
SE408383B (sv) * 1976-04-08 1979-06-11 Asea Ab Press for formning av platar och dylikt med hjelp av en formdyna, som under formningsskedet er innesluten i en kavitet, som bildas av en ovre och en undre verktygsdel av vilka minst en er rorligt anordnad i ett ...
DE2655605C2 (de) * 1976-12-08 1978-10-05 G. Siempelkamp Gmbh & Co, 4150 Krefeld Gummikissen-Ziehpresse
US4162625A (en) * 1978-01-24 1979-07-31 Simmons David E Method and apparatus for forming dental copings
DE3004616C2 (de) * 1980-02-08 1982-11-04 Becker & van Hüllen Niederrheinische Maschinenfabrik GmbH & Co, 4150 Krefeld Gummikissen-Ziehpresse
DE3145121A1 (de) * 1981-11-13 1983-05-26 G. Siempelkamp Gmbh & Co, 4150 Krefeld Hydraulische presse mit auswechselbarem gummikissen

Also Published As

Publication number Publication date
DE3605728C2 (enrdf_load_stackoverflow) 1988-11-17
JPS62296996A (ja) 1987-12-24
US4829807A (en) 1989-05-16
EP0234049A2 (de) 1987-09-02
EP0234049A3 (en) 1989-02-08
DE3605728A1 (de) 1987-08-27
JPH0249837B2 (enrdf_load_stackoverflow) 1990-10-31

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