WO2006042499A3 - Hydraulically actuated casting unit - Google Patents

Hydraulically actuated casting unit Download PDF

Info

Publication number
WO2006042499A3
WO2006042499A3 PCT/DE2005/001755 DE2005001755W WO2006042499A3 WO 2006042499 A3 WO2006042499 A3 WO 2006042499A3 DE 2005001755 W DE2005001755 W DE 2005001755W WO 2006042499 A3 WO2006042499 A3 WO 2006042499A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
pressure
main piston
hydraulically actuated
casting unit
Prior art date
Application number
PCT/DE2005/001755
Other languages
German (de)
French (fr)
Other versions
WO2006042499A2 (en
Inventor
Dirk Herold
Holger Engert
Original Assignee
Bosch Rexroth Ag
Dirk Herold
Holger Engert
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 Bosch Rexroth Ag, Dirk Herold, Holger Engert filed Critical Bosch Rexroth Ag
Publication of WO2006042499A2 publication Critical patent/WO2006042499A2/en
Publication of WO2006042499A3 publication Critical patent/WO2006042499A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/82—Hydraulic or pneumatic circuits
    • 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
    • B22D17/2069—Exerting after-pressure on the moulding material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76775—Fluids
    • B29C2945/76785—Fluids hydraulic fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Check Valves (AREA)

Abstract

Disclosed are a hydraulically actuated casting unit and a check valve that is suitable therefor, is embodied as a two/two-way seat valve, and can be penetrated in only one direction from an inlet to an outlet. A main piston of the directional seat valve is configured with several control areas which can be impinged upon by control pressure in a first position via a randomly actuated pilot valve of a pilot control of the check valve in such a way that the main piston is maintained in a closed state. The control areas of the main piston are impinged upon by pressure in a second position of the pilot valve such that the main piston can be raised from the seat thereof by means of the pressure prevailing at the inlet provided that the pressure prevailing at the outlet of the check valve is lower than the inlet pressure.
PCT/DE2005/001755 2004-10-15 2005-09-30 Hydraulically actuated casting unit WO2006042499A2 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
DE102004050310 2004-10-15
DE102004050432.6 2004-10-15
DE102004050431 2004-10-15
DE102004050432 2004-10-15
DE102004050431.8 2004-10-15
DE102004050310.9 2004-10-15
DE102004061562.4 2004-12-21
DE102004061562 2004-12-21
DE102005023029 2005-05-13
DE102005023029.6 2005-05-13
DE102005035170A DE102005035170B4 (en) 2004-10-15 2005-07-27 Hydraulically operated casting unit
DE102005035170.0 2005-07-27

Publications (2)

Publication Number Publication Date
WO2006042499A2 WO2006042499A2 (en) 2006-04-27
WO2006042499A3 true WO2006042499A3 (en) 2006-07-27

Family

ID=36096197

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/001755 WO2006042499A2 (en) 2004-10-15 2005-09-30 Hydraulically actuated casting unit

Country Status (2)

Country Link
DE (1) DE102005035170B4 (en)
WO (1) WO2006042499A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055393A1 (en) 2006-05-05 2007-11-08 Robert Bosch Gmbh Valve for adjusting the speed of a casting cylinder of a die casting machine comprises a stop part which can be adjusted between different stopping positions using a remote-controlled adjusting arrangement
DE102009014421A1 (en) * 2009-03-26 2010-09-30 Abb Technology Ag valve assembly
DE102012016838B4 (en) 2012-08-27 2023-12-28 Robert Bosch Gmbh Hydraulic control circuit for a hydraulically operated casting unit
EP2829379A1 (en) * 2013-07-22 2015-01-28 Eugen Seitz AG Valve assembly
DE102017220836A1 (en) 2016-11-24 2018-05-24 Robert Bosch Gmbh Hydraulic control for a casting unit of an injection molding machine and method for controlling a casting unit of an injection molding machine
DE102017221500A1 (en) 2017-11-30 2019-06-06 Robert Bosch Gmbh Hydraulic system for a machine for molding, in particular for a die-casting machine
DE102020201216B4 (en) 2020-01-31 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Hydraulic casting unit
DE102021200953A1 (en) 2021-02-03 2022-08-04 Robert Bosch Gesellschaft mit beschränkter Haftung Hydraulic control for a casting unit of a primary molding machine
DE102021200958A1 (en) 2021-02-03 2022-08-04 Robert Bosch Gesellschaft mit beschränkter Haftung Hydraulic control of a casting unit of an injection molding machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622217A (en) * 1994-09-14 1997-04-22 Toshiba Kikai Kabushiki Kaisha Injection apparatus for a die casting machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072752A (en) * 1991-03-14 1991-12-17 Sterling Hydraulics, Inc. Bidirectional cartridge valve
DE19535677A1 (en) * 1995-09-26 1997-03-27 Bosch Gmbh Robert Device for controlling a hydraulic motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622217A (en) * 1994-09-14 1997-04-22 Toshiba Kikai Kabushiki Kaisha Injection apparatus for a die casting machine

Also Published As

Publication number Publication date
WO2006042499A2 (en) 2006-04-27
DE102005035170B4 (en) 2013-11-21
DE102005035170A1 (en) 2006-04-20

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