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GB1535727A - Machines for injection moulding and for die-casting - Google Patents

Machines for injection moulding and for die-casting

Info

Publication number
GB1535727A
GB1535727A GB859975A GB859975A GB1535727A GB 1535727 A GB1535727 A GB 1535727A GB 859975 A GB859975 A GB 859975A GB 859975 A GB859975 A GB 859975A GB 1535727 A GB1535727 A GB 1535727A
Authority
GB
United Kingdom
Prior art keywords
piston
mould
fluid
cylinder
clamping
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
GB859975A
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.)
DANIELS STROUD Ltd
Original Assignee
DANIELS STROUD Ltd
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 DANIELS STROUD Ltd filed Critical DANIELS STROUD Ltd
Priority to GB859975A priority Critical patent/GB1535727A/en
Priority to DE19762606737 priority patent/DE2606737A1/en
Priority to FR7605674A priority patent/FR2302187A1/en
Publication of GB1535727A publication Critical patent/GB1535727A/en
Expired legal-status Critical Current

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
    • B29C45/1751—Adjustment means allowing the use of moulds of different thicknesses
    • 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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
    • B29C45/683—Mould opening, closing or clamping devices hydro-mechanical using both a toggle mechanism as mould closing device and another mechanism as mould clamping device
    • 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
    • B29C45/84—Safety devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

1535727 Pressure die casting DANIELS STROUD Ltd 11 Feb 1976 [28 Feb 1975] 8599/75 Heading B3F [Also in Division B5] In a mould opening and clamping unit for a die casting machine comprising a toggle device 5, 6 for the relatively fast opening/closing part of the stroke of the unit and a direct acting hydraulic device 14 for applying a clamping force to the mould halves 11, 12, there is provided a piston 20 which can be adjusted to ensure that for different mould heights/thickness the volume of clamping fluid in space 23 remains small. The toggle device 5, 6 is pivoted at 8, 9 to the movable mould plate 7 and piston 14 respectively so that an hydraulic piston/ cylinder 3, 1 can drive the links 5, 6 into a co-linear relationship upon mould closure. Hydraulic fluid can then be forced via a duct 26 into the space 23 between the piston 14 and the second piston 20 to drive the piston 15 to the left to apply a clamping force. The piston 20 is held under tension by pressurized fluid in an annular chamber 27 and is retained against movement by a nut (22, Fig. 2, not shown) abutting against the cylinder 14. To accommodate moulds of different heights the piston 20 may be moved axially of the cylinder 14 by slackening the nut and removing or introducing fluid into the chamber 27 via manually operated valves (33, 34, Fig. 2). A fail-safe device for detecting foreign bodies in the mould or moulds may be provided and may comprise a mechanically operated rod having an electrical sensing unit which is actuated upon the piston 14 being driven to the right during the closing stroke as a result of the toggle action meeting a resistance.
GB859975A 1975-02-28 1975-02-28 Machines for injection moulding and for die-casting Expired GB1535727A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB859975A GB1535727A (en) 1975-02-28 1975-02-28 Machines for injection moulding and for die-casting
DE19762606737 DE2606737A1 (en) 1975-02-28 1976-02-19 LOCKING AND LOCKING DEVICE FOR AT LEAST ONE MOLDING TOOL
FR7605674A FR2302187A1 (en) 1975-02-28 1976-02-27 INJECTION MOLDING OR PRESSURE CASTING MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB859975A GB1535727A (en) 1975-02-28 1975-02-28 Machines for injection moulding and for die-casting

Publications (1)

Publication Number Publication Date
GB1535727A true GB1535727A (en) 1978-12-13

Family

ID=9855590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB859975A Expired GB1535727A (en) 1975-02-28 1975-02-28 Machines for injection moulding and for die-casting

Country Status (3)

Country Link
DE (1) DE2606737A1 (en)
FR (1) FR2302187A1 (en)
GB (1) GB1535727A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103057141A (en) * 2012-12-18 2013-04-24 河海大学常州校区 Toggle rod hydraulic press

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007776A1 (en) * 1978-07-20 1980-02-06 Ocean Investments (Gibraltar) Limited Press for installing fasteners in workpieces
FR2467076A1 (en) * 1979-10-10 1981-04-17 Pont A Mousson AUTOMATIC DEVICE FOR ADJUSTING AN INJECTION PRESS FOR PLASTIC MATERIALS OR OTHER SIMILAR MATERIALS
DE4410004C2 (en) * 1994-01-31 1996-09-19 Baumueller Nuernberg Gmbh Pressing device or hydraulic lifting device
DE10112983C1 (en) * 2001-03-17 2002-07-11 Markus Angenheister Drive mechanism, for a pressing tool, comprises thrust crank driven by drive shaft, connecting rod, detent pawl, bolt and linear drive
CN102407607A (en) * 2011-10-25 2012-04-11 陈道宝 Double-cylinder connecting-rod hydraulic pressure machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351581A (en) * 1962-12-28 1964-02-07 Various improvements to plastic injection molding presses
US3345691A (en) * 1964-12-02 1967-10-10 Aoki Katashi Injection molding machine
FR1493473A (en) * 1966-05-05 1967-09-01 Improvement in the closing devices of plastics injection molding presses
US3712774A (en) * 1970-10-14 1973-01-23 Improved Machinery Inc Molding machine having yieldably restrained clamping force applying element
FR2158659A5 (en) * 1971-10-27 1973-06-15 Guen & Hemidy Le Injection moulding machine - with auxiliary cylinders to adjust platen positions
FR2141241A5 (en) * 1972-06-05 1973-01-19 Chabrand Louis Mould traverse mechanism - with automatic deactivation of the main hydraulic lock if the daylight is fouled

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103057141A (en) * 2012-12-18 2013-04-24 河海大学常州校区 Toggle rod hydraulic press

Also Published As

Publication number Publication date
FR2302187B1 (en) 1981-04-30
DE2606737A1 (en) 1976-09-09
FR2302187A1 (en) 1976-09-24

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Legal Events

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