GB1213065A - Apparatus for controlling die casting machines - Google Patents

Apparatus for controlling die casting machines

Info

Publication number
GB1213065A
GB1213065A GB1264168A GB1264168A GB1213065A GB 1213065 A GB1213065 A GB 1213065A GB 1264168 A GB1264168 A GB 1264168A GB 1264168 A GB1264168 A GB 1264168A GB 1213065 A GB1213065 A GB 1213065A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
pressure
plunger
casting
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
Application number
GB1264168A
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.)
Idra Pressen GmbH
Original Assignee
Idra Pressen 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 Idra Pressen GmbH filed Critical Idra Pressen GmbH
Publication of GB1213065A publication Critical patent/GB1213065A/en
Expired 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
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
    • 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
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids

Abstract

1,213,065. Hydraulic apparatus. IDRAPRESSEN G. m.b. H. March 15, 1968 [March 15, 1967], No.2641/68. Heading F1P. [Also in Division B3] In a horizontal cold-chamber die-casting machine the molten metal plunger (not shown, but attached to the left of a plunger piston 4) is provided with a pressure intensifier comprising a cylinder 1 with a piston 2. At the beginning of casting pressure fluid is supplied at 27 and passes through the centre void of the piston 2 to force the plunger piston 4 leftwards thus injecting metal into the die, the centre valve of piston 2 being open. The piston 2 is held stationary by pressure fluid fed from a main 12 through an adjustable valve 13. As the plunger reaches the end of its injection stroke, a back pressure wave is produced which closes the centre valve of piston 2 which piston then begins to move leftward to meet the plunger piston 4 to apply the intensified pressure to the casting. The build-up of pressure in a chamber 7 in front of piston 2 opens a control valve 9 to force fluid into a pressure reservoir 8. The valve is spring biased and adjustable by a spindle 10. During most of the metal injection cycle the pipe 6 and pipe 14 on opposite sides of the spring biased valve seat 11 are connected through a four-way valve 15. Alternatively the pressure main 25 can be connected to the valve 9 via the valve 15. The spring biasing in valve 9 can be over-ridden by connecting the pipe 14 to an oil reservoir by operating the valve 15. The valve 15 is solenoid 19 operated through a timedelay 22. The signals for actuating the solenoid are derived from the fluid pressure in a cavity 20 in front of the intensifier piston 2. By adjusting the time delay 22 the instant during the metal injection at which the valve 11 opens to allow pressure fluid into the reservoir 8 can be varied to suit the type of casting.
GB1264168A 1967-03-15 1968-03-15 Apparatus for controlling die casting machines Expired GB1213065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0033215 1967-03-15

Publications (1)

Publication Number Publication Date
GB1213065A true GB1213065A (en) 1970-11-18

Family

ID=7204696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264168A Expired GB1213065A (en) 1967-03-15 1968-03-15 Apparatus for controlling die casting machines

Country Status (4)

Country Link
DE (1) DE1558258B1 (en)
FR (1) FR1558063A (en)
GB (1) GB1213065A (en)
SE (1) SE345219B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766964A (en) * 1971-11-22 1973-10-23 Idra Pressen Gmbh Method of controlling the connection of the multiplier on the pressure piston of a multiple pressure casting machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2801829C3 (en) * 1978-01-17 1985-02-21 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Method and device for controlling a die casting machine
MX153288A (en) * 1979-02-14 1986-09-11 Nippon Denso Co IMPROVEMENTS IN METHOD AND APPARATUS FOR THE PRODUCTION OF CAST-FREE CAST PRODUCTS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087765B (en) * 1957-01-10 1960-08-25 West Laboratories Inc Germicide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766964A (en) * 1971-11-22 1973-10-23 Idra Pressen Gmbh Method of controlling the connection of the multiplier on the pressure piston of a multiple pressure casting machine

Also Published As

Publication number Publication date
SE345219B (en) 1972-05-23
DE1558258B1 (en) 1970-02-19
FR1558063A (en) 1969-02-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee