ES2080948T3 - INJECTION UNIT FOR A CASTING HYDRAULIC MACHINE, PROVIDED WITH A DEVICE FOR THE ELIMINATION OF PRESSURE PEAKS IN THE INJECTION. - Google Patents

INJECTION UNIT FOR A CASTING HYDRAULIC MACHINE, PROVIDED WITH A DEVICE FOR THE ELIMINATION OF PRESSURE PEAKS IN THE INJECTION.

Info

Publication number
ES2080948T3
ES2080948T3 ES91909466T ES91909466T ES2080948T3 ES 2080948 T3 ES2080948 T3 ES 2080948T3 ES 91909466 T ES91909466 T ES 91909466T ES 91909466 T ES91909466 T ES 91909466T ES 2080948 T3 ES2080948 T3 ES 2080948T3
Authority
ES
Spain
Prior art keywords
injection
piston
auxiliary
cylinder
elimination
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
ES91909466T
Other languages
Spanish (es)
Inventor
Roberto Bragastini
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.)
INT PRESS DEV EST
Original Assignee
INT PRESS DEV EST
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 INT PRESS DEV EST filed Critical INT PRESS DEV EST
Application granted granted Critical
Publication of ES2080948T3 publication Critical patent/ES2080948T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D17/2015—Means for forcing the molten metal into the die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

LA UNIDAD DE INYECCION COMPRENDE UN CILINDRO DE INYECCION (9), UN PISTON DE INYECCION OPERADO HIDRAULICAMENTE (10), UN ACUMULADOR DE LIQUIDOS (1) PARA EL FUNCIONAMIENTO A ALTA VELOCIDAD DEL PISTON DE INYECCION (10) DURANTE LA CARRERA DE INYECCION Y UN MULTIPLICADOR DE PRESION (12) PARA EL FUNCIONAMIENTO A BAJA VELOCIDAD Y ALTA PRESION DEL PISTON (10) AL FINAL DE LA CARRERA DE INYECCION DEL PISTON (10). ADEMAS COMPRENDE UNA UNIDAD DE CILINDRO/PISTON AUXILIAR (6,7) INTERPUESTA ENTRE EL PISTON DE INYECCION (10) Y EL ACUMULADOR (1) PARA PERMITIR EL AVANCE DEL PISTON (7) DE DICHA UNIDAD AUXILIAR BAJO LA ACCION DEL ACUMULADOR (1) Y EL AVANCE DE DICHO PISTON DE INYECCION (10) DE ACUERDO CON DICHO PISTON AUXILIAR (7). LA SECCION TRANSVERSAL DEL CILINDRO AUXILIAR (6) ES SUPERIOR A LA SECCION TRANSVERSAL DEL CILINDRO DE INYECCION (9).THE INJECTION UNIT INCLUDES AN INJECTION CYLINDER (9), A HYDRAULICALLY OPERATED INJECTION PISTON (10), A LIQUID ACCUMULATOR (1) FOR THE HIGH SPEED OPERATION OF THE INJECTION PISTON (10) DURING THE INJECTION RACE. PRESSURE MULTIPLIER (12) FOR OPERATION AT LOW SPEED AND HIGH PRESSURE OF THE PISTON (10) AT THE END OF THE PISTON INJECTION RACE (10). FURTHER, IT INCLUDES AN AUXILIARY PISTON / CYLINDER UNIT (6,7) INTERPRETATION BETWEEN THE INJECTION PISTON (10) AND THE ACCUMULATOR (1) TO ALLOW THE ADVANCE OF THE PISTON (7) OF SUCH AUXILIARY UNIT UNDER THE ACTION OF THE ACCUMULATOR (1) AND THE ADVANCE OF SUCH INJECTION PISTON (10) IN ACCORDANCE WITH SUCH AUXILIARY PISTON (7). THE CROSS SECTION OF THE AUXILIARY CYLINDER (6) IS HIGHER THAN THE CROSS SECTION OF THE INJECTION CYLINDER (9).

ES91909466T 1990-05-22 1991-05-15 INJECTION UNIT FOR A CASTING HYDRAULIC MACHINE, PROVIDED WITH A DEVICE FOR THE ELIMINATION OF PRESSURE PEAKS IN THE INJECTION. Expired - Lifetime ES2080948T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02039490A IT1248476B (en) 1990-05-22 1990-05-22 INJECTION GROUP FOR HYDRAULIC DIE-CASTING MACHINE, EQUIPPED WITH A DEVICE FOR THE ELIMINATION OF INJECTION PRESSURE PEAKS

Publications (1)

Publication Number Publication Date
ES2080948T3 true ES2080948T3 (en) 1996-02-16

Family

ID=11166319

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91909466T Expired - Lifetime ES2080948T3 (en) 1990-05-22 1991-05-15 INJECTION UNIT FOR A CASTING HYDRAULIC MACHINE, PROVIDED WITH A DEVICE FOR THE ELIMINATION OF PRESSURE PEAKS IN THE INJECTION.

Country Status (7)

Country Link
EP (1) EP0530244B1 (en)
CN (1) CN1056643A (en)
AT (1) ATE132781T1 (en)
DE (1) DE69116361T2 (en)
ES (1) ES2080948T3 (en)
IT (1) IT1248476B (en)
WO (1) WO1991017850A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774004B (en) * 2009-01-12 2012-05-23 深圳领威科技有限公司 Oil-electric hybrid hot-chamber die casting machine injection system
CN101774005B (en) * 2009-01-12 2012-05-30 深圳领威科技有限公司 Oil-electricity hybrid cold chamber die casting machine injection system
CN101530902B (en) * 2009-04-16 2010-12-08 宁海县德科模塑有限公司 Stable-pressure device of Zinc alloy die casting mold
CN102451899A (en) * 2010-10-25 2012-05-16 上海一达机械有限公司 Pump station oil pump driving device of die casting machine hydraulic system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021539B2 (en) * 1970-05-02 1971-04-22 Wotan Werke Gmbh DIE CASTING MACHINE WITH MULTIPLIER
DE3014868A1 (en) * 1979-06-18 1981-01-22 Buehler Ag Geb DIE CASTING MACHINE
DE3123498C1 (en) * 1981-06-13 1983-02-03 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Device for the accelerated construction and regulation of the holding pressure on die casting machines

Also Published As

Publication number Publication date
CN1056643A (en) 1991-12-04
DE69116361D1 (en) 1996-02-22
EP0530244A1 (en) 1993-03-10
WO1991017850A1 (en) 1991-11-28
DE69116361T2 (en) 1996-05-30
EP0530244B1 (en) 1996-01-10
IT9020394A0 (en) 1990-05-22
IT9020394A1 (en) 1991-11-22
ATE132781T1 (en) 1996-01-15
IT1248476B (en) 1995-01-19

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