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DE3881424D1 - PISTON PRESS. - Google Patents

PISTON PRESS.

Info

Publication number
DE3881424D1
DE3881424D1 DE8888104222T DE3881424T DE3881424D1 DE 3881424 D1 DE3881424 D1 DE 3881424D1 DE 8888104222 T DE8888104222 T DE 8888104222T DE 3881424 T DE3881424 T DE 3881424T DE 3881424 D1 DE3881424 D1 DE 3881424D1
Authority
DE
Germany
Prior art keywords
press
given
piston press
characteristic
displacement
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
DE8888104222T
Other languages
German (de)
Inventor
Rolf Schmidt
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.)
SCHMIDT FEINMECH
Original Assignee
SCHMIDT FEINMECH
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 SCHMIDT FEINMECH filed Critical SCHMIDT FEINMECH
Priority to DE8888104222T priority Critical patent/DE3881424D1/en
Application granted granted Critical
Publication of DE3881424D1 publication Critical patent/DE3881424D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/26—Programme control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)

Abstract

he pneumatically operated piston press has a pneumatic cylinder (15) with a servo-valve (42,45) for the two opposing working spaces (40,43) on either side of the sliding piston (16) to which the press runs (17) is attached. The latter cooperates with a displacement monitor (18) supplying an output signal to a regulator (37). This compares it with given reference values (50..53) to provide control signals for the electropneumatic servovalves (42,45) for the penumatic cylinder (15) to obtain a given displacement characteristic. Pref. the latter characteristic exhibits differeing gradients for discrete ranges to allow the ram to be moved from its rest position to its end postion with a velocity which decreases in stages.
DE8888104222T 1987-04-01 1988-03-17 PISTON PRESS. Expired - Lifetime DE3881424D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888104222T DE3881424D1 (en) 1987-04-01 1988-03-17 PISTON PRESS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3710289 1987-04-01
DE19873716220 DE3716220A1 (en) 1987-04-01 1987-05-14 PISTON PRESS
DE8888104222T DE3881424D1 (en) 1987-04-01 1988-03-17 PISTON PRESS.

Publications (1)

Publication Number Publication Date
DE3881424D1 true DE3881424D1 (en) 1993-07-08

Family

ID=25854026

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873716220 Withdrawn DE3716220A1 (en) 1987-04-01 1987-05-14 PISTON PRESS
DE8888104222T Expired - Lifetime DE3881424D1 (en) 1987-04-01 1988-03-17 PISTON PRESS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873716220 Withdrawn DE3716220A1 (en) 1987-04-01 1987-05-14 PISTON PRESS

Country Status (2)

Country Link
EP (1) EP0284903B1 (en)
DE (2) DE3716220A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100113A (en) * 1988-10-18 1992-03-31 Aida Engineering Co., Ltd. Pneumatic die cushion equipment
US5042336A (en) * 1989-03-03 1991-08-27 Capps David F Control apparatus and method for progressive fracture of workpieces
JP2788675B2 (en) * 1990-11-06 1998-08-20 住友重機械工業株式会社 Mold opening and closing control device
DE4331017C2 (en) * 1993-09-13 1999-09-23 Langenstein & Schemann Gmbh Process for controlling a stone molding press
DE10023164B4 (en) * 1999-05-12 2006-11-30 Hornung Gmbh Indupress & Co. Kg ironer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518720A (en) * 1975-11-21 1978-07-26 Ishikawajima Harima Heavy Ind Hydraulic servomechanism
DE2937998A1 (en) * 1979-09-20 1981-04-02 Beche & Grohs GmbH, 5609 Hückeswagen METHOD FOR CONTROLLING THE WORK PROCESS OF A PRESSURE-PRESSURIZED WORKING MACHINE, AND PRESSURE-BEANED WORKING MACHINE WITH PRESSURE CONTROLLER
DE3230930A1 (en) * 1982-08-20 1984-02-23 Schirmer, Plate und Siempelkamp Hydraulische Pressen GmbH, 4150 Krefeld Controlling circuit arrangement in a forming press
DE3401203C1 (en) * 1984-01-14 1985-05-30 Hoesch Ag, 4600 Dortmund Hydraulic press for press moulding plastic semi-finished products
FR2600120B1 (en) * 1986-06-12 1990-06-29 Bertin & Cie METHOD AND DEVICE FOR CONTROLLING THE POSITION OF A PNEUMATIC CYLINDER

Also Published As

Publication number Publication date
DE3716220A1 (en) 1988-10-20
EP0284903B1 (en) 1993-06-02
EP0284903A3 (en) 1989-09-20
EP0284903A2 (en) 1988-10-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition