DE69004658T2 - Device for regulating a hydraulic pressure, in particular for ceramic molding presses with a movable lower punch and counter punch. - Google Patents

Device for regulating a hydraulic pressure, in particular for ceramic molding presses with a movable lower punch and counter punch.

Info

Publication number
DE69004658T2
DE69004658T2 DE90202381T DE69004658T DE69004658T2 DE 69004658 T2 DE69004658 T2 DE 69004658T2 DE 90202381 T DE90202381 T DE 90202381T DE 69004658 T DE69004658 T DE 69004658T DE 69004658 T2 DE69004658 T2 DE 69004658T2
Authority
DE
Germany
Prior art keywords
punches
hydraulic
die
counter
valve
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 - Fee Related
Application number
DE90202381T
Other languages
German (de)
Other versions
DE69004658D1 (en
Inventor
Lodovico Bardelli
Franco Regnani
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.)
Mass SpA
Original Assignee
Mass SpA
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 Mass SpA filed Critical Mass SpA
Application granted granted Critical
Publication of DE69004658D1 publication Critical patent/DE69004658D1/en
Publication of DE69004658T2 publication Critical patent/DE69004658T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses

Abstract

A hydraulic device, typically for ceramic moulds comprising a vertically mobile bottom die (24) provided with cavities (21) for loading the soft clay and a counter-die (240) provided with corresponding cavities (210), said cavities (21), (210) being closed at their rear by respective punches (20), (200) for forming the laying and exposed faces of the tiles respectively, said punches (20), (200) being connected to the hydraulic circuit of the press which operates the ceramic mould, in such a manner as to be driven independently of said bottom die and counter-die, comprises two intercommunicatlng chambers (122, 22) with a valve (4) therebetween, the first (122) being connected to the hydraulic circuit (66) for driving the lower punches (20) relative to the bottom die (24), and the second (22) being connected to at least one hydraulic chamber (280) for driving the upper punches (200) relative to the counter-die (240). The valve (4) is elastically urged towards a forward slidable push rod (5, 6) the seat of which is connected to said first chamber (122) such that when this latter is put under pressure by the hydraulic fluid from said circuit (66) the push rod (5, 6) causes the valve (4) to open with simultaneous fluid entry into said hydraulic chamber (280) and advancement of the upper punches (200). When the upper punches (200) move rearwards during a pressing stage, the valve (4) closes after fluid discharge from said hydraulic chamber (280).
DE90202381T 1989-10-02 1990-09-07 Device for regulating a hydraulic pressure, in particular for ceramic molding presses with a movable lower punch and counter punch. Expired - Fee Related DE69004658T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT04687189A IT1237568B (en) 1989-10-02 1989-10-02 HYDRAULIC PRESSURE REGULATOR, TYPICALLY FOR CERAMIC MOLDS WITH MOBILE DIE AND COUNTERMATRICE

Publications (2)

Publication Number Publication Date
DE69004658D1 DE69004658D1 (en) 1993-12-23
DE69004658T2 true DE69004658T2 (en) 1994-03-10

Family

ID=11260010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE90202381T Expired - Fee Related DE69004658T2 (en) 1989-10-02 1990-09-07 Device for regulating a hydraulic pressure, in particular for ceramic molding presses with a movable lower punch and counter punch.

Country Status (4)

Country Link
EP (1) EP0421505B1 (en)
AT (1) ATE97360T1 (en)
DE (1) DE69004658T2 (en)
IT (1) IT1237568B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357423A1 (en) * 2003-12-04 2005-06-30 Rolls-Royce Deutschland Ltd & Co Kg Quick closing valve for interrupting a fluid flow

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAN20110141A1 (en) 2011-10-19 2013-04-20 Manenti S P A IMPROVED BUFFER FOR MOLDS FOR THE CERAMIC INDUSTRY AND MOLD INCLUDING SUCH A BUFFER.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682172A (en) * 1928-08-28 Automatic hydraulic press
FR641383A (en) * 1927-09-24 1928-08-02 Control device for pressure mechanisms, with successive actions
IT1107475B (en) * 1978-07-24 1985-11-25 Merisinter Spa PRESS AND MOLD HOLDER COMPLEX FOR POWDER METALLURGY COMPACTION
IT1187779B (en) * 1985-04-10 1987-12-23 Mass Spa CERAMIC MOLD WITH MOBILE MATRIX FOR THE FORMING OF TILES OF ANY SIZE AND OF TILES WITH SUPPORT FOR MULTIPLE COMPONENTS, SUCH AS PRESS-GLAZED TILES
DE3527594A1 (en) * 1985-08-01 1987-02-12 Sacmi Press, especially for the production of ceramic tiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357423A1 (en) * 2003-12-04 2005-06-30 Rolls-Royce Deutschland Ltd & Co Kg Quick closing valve for interrupting a fluid flow
US7163186B2 (en) 2003-12-04 2007-01-16 Rolls-Royce Deutschland Ltd & Co Kg Quick-closing valve for the interruption of a fluid flow

Also Published As

Publication number Publication date
IT8946871A0 (en) 1989-10-02
EP0421505A3 (en) 1991-11-27
ATE97360T1 (en) 1993-12-15
IT8946871A1 (en) 1991-04-02
EP0421505B1 (en) 1993-11-18
EP0421505A2 (en) 1991-04-10
DE69004658D1 (en) 1993-12-23
IT1237568B (en) 1993-06-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee