FR2414378A1 - Die casting machine - with finishing piston pressure controlled for rapid rise without overshoot - Google Patents

Die casting machine - with finishing piston pressure controlled for rapid rise without overshoot

Info

Publication number
FR2414378A1
FR2414378A1 FR7900743A FR7900743A FR2414378A1 FR 2414378 A1 FR2414378 A1 FR 2414378A1 FR 7900743 A FR7900743 A FR 7900743A FR 7900743 A FR7900743 A FR 7900743A FR 2414378 A1 FR2414378 A1 FR 2414378A1
Authority
FR
France
Prior art keywords
pressure
die casting
overshoot
casting machine
finishing
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.)
Granted
Application number
FR7900743A
Other languages
French (fr)
Other versions
FR2414378B1 (en
Inventor
Markus Reihle
Josef Baur
Walter Klenk
Karl Griesinger
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.)
Maschinenfabrik Weingarten AG
Original Assignee
Maschinenfabrik Weingarten AG
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 Maschinenfabrik Weingarten AG filed Critical Maschinenfabrik Weingarten AG
Publication of FR2414378A1 publication Critical patent/FR2414378A1/en
Application granted granted Critical
Publication of FR2414378B1 publication Critical patent/FR2414378B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The displacement/pressure progress of the die casting machine is controlled by a pressure intensifier which is designed with a stepped piston to produce a higher pressure near the end of the die casting operation. An annulus in the stepped piston cylinder on the press piston side is at zero pressure. Near the end of the stepped piston movement, the annulus is loaded by a preset pressure. This achieves a rapid finishing pressure and prevents any overshoot of the finishing pressure beyond the stationary value. A mould change does not require any change in the pressure of the accumulator which feeds the stepped piston.
FR7900743A 1978-01-17 1979-01-12 Die casting machine - with finishing piston pressure controlled for rapid rise without overshoot Granted FR2414378A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782801829 DE2801829C3 (en) 1978-01-17 1978-01-17 Method and device for controlling a die casting machine

Publications (2)

Publication Number Publication Date
FR2414378A1 true FR2414378A1 (en) 1979-08-10
FR2414378B1 FR2414378B1 (en) 1984-02-17

Family

ID=6029672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900743A Granted FR2414378A1 (en) 1978-01-17 1979-01-12 Die casting machine - with finishing piston pressure controlled for rapid rise without overshoot

Country Status (2)

Country Link
DE (1) DE2801829C3 (en)
FR (1) FR2414378A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315453C2 (en) * 1983-04-28 1995-07-20 Fichtel & Sachs Ag Die-casting process for the production of heat-resistant, high-strength die-cast parts by smoothly guiding the casting piston and device for carrying it out
DE4218556A1 (en) * 1992-06-05 1993-12-09 Mueller Weingarten Maschf Method and device for carrying out the method for process control of a die casting machine
BE1010155A6 (en) * 1997-11-05 1998-01-06 Buehler Ag Method for operating a drive piston and device for the implementation thereof.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558063A (en) * 1967-03-15 1969-02-21
FR2012457A1 (en) * 1968-07-06 1970-03-20 Wotan Werke Gmbh
FR2117853A1 (en) * 1970-12-10 1972-07-28 Gussstahlwerk Wittmann A
DE2021182B2 (en) * 1970-04-30 1973-05-03 Maschinenfabrik Weingarten Ag, 7987 Weingarten DEVICE FOR ADJUSTING THE PRESSURE PISTON SPEEDS AND PRESSURE IN DIE CASTING MACHINES WITH THREE-PHASE SYSTEM, IN PARTICULAR IN COLD CHAMBER PRESSURE CASTING MACHINES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124820B (en) * 1957-06-06 1962-03-01 Mahle Werk G M B H Control device for a hydraulic, double-acting differential piston servo motor, in particular for die casting machines
ES346347A1 (en) * 1966-11-09 1968-12-01 Idra Pressen Gmbh Improvements in or relating to Die-Casting Machines
DE2017951C2 (en) * 1970-04-15 1978-10-05 Wotan-Werke Gmbh, 4000 Duesseldorf Die casting machine with multiplier
DE2165929C3 (en) * 1971-12-31 1982-04-29 Maschinenfabrik Weingarten Ag, 7987 Weingarten Device for the accelerated construction and regulation of the holding pressure on die casting machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558063A (en) * 1967-03-15 1969-02-21
FR2012457A1 (en) * 1968-07-06 1970-03-20 Wotan Werke Gmbh
DE1758615B1 (en) * 1968-07-06 1971-01-14 Wotan Werke Gmbh Die casting machine with multiplier
DE2021182B2 (en) * 1970-04-30 1973-05-03 Maschinenfabrik Weingarten Ag, 7987 Weingarten DEVICE FOR ADJUSTING THE PRESSURE PISTON SPEEDS AND PRESSURE IN DIE CASTING MACHINES WITH THREE-PHASE SYSTEM, IN PARTICULAR IN COLD CHAMBER PRESSURE CASTING MACHINES
FR2117853A1 (en) * 1970-12-10 1972-07-28 Gussstahlwerk Wittmann A

Also Published As

Publication number Publication date
DE2801829B2 (en) 1980-04-30
DE2801829A1 (en) 1979-07-19
FR2414378B1 (en) 1984-02-17
DE2801829C3 (en) 1985-02-21

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse