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GB1110534A - Improvements in or relating to injection moulding machines and processes - Google Patents

Improvements in or relating to injection moulding machines and processes

Info

Publication number
GB1110534A
GB1110534A GB4952865A GB4952865A GB1110534A GB 1110534 A GB1110534 A GB 1110534A GB 4952865 A GB4952865 A GB 4952865A GB 4952865 A GB4952865 A GB 4952865A GB 1110534 A GB1110534 A GB 1110534A
Authority
GB
United Kingdom
Prior art keywords
controlled
injection
plunger
mould
control
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
GB4952865A
Inventor
Peter Franklin Harrison
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.)
PETER FRANKLN HARRISON
Peco Machinery Ltd
Original Assignee
PETER FRANKLN HARRISON
Peco Machinery 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 PETER FRANKLN HARRISON, Peco Machinery Ltd filed Critical PETER FRANKLN HARRISON
Priority to GB4952865A priority Critical patent/GB1110534A/en
Publication of GB1110534A publication Critical patent/GB1110534A/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
    • B29C45/76—Measuring, controlling or regulating
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5833—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection

Landscapes

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

Abstract

1,110,534. Injection moulding machines. PECO MACHINERY Ltd. and P. F. HARRISON. 30 Nov., 1966 [22 Nov., 1965], No. 49528/65. Heading B5A. The volume of a mould cavity 12 and the injection pressure are controlled in dependence on the position of an injection plunger 17 during its working stroke. The control is dependent on instantaneous position of the plunger and is energized by a unit 23 connected electrically to switches 22 operated by the plunger, the injection pressure depending on hydraulic pressure in a plunger cylinder 20 and controlled by a walve 24, the cavity volume being controlled by a potentiometer 25 acting as a feed to a servo-control 27 linked to the unit 23 the control 27 acting on a valve 28 to control the pressure to a cylinder 16 which moves a platen 14 supporting a mould half 11 in telescopic arrangement with a fixed mould half 10. The inter-relation between the mould volume and injection pressure is predetermined and controlled by punch-card, datum-setting electric circuits or model curves using parameters such a time. The unit 23 may be controlled continuously by a potentiometer (30), replacing the switches 22. The cavity volume is either maintained at the required value during injection or is increased and then reduced to the required value to effect a compression moulding. In a modification (not shown) a three part mould is used, one part sliding telescopically and centrally within the periphery of another.
GB4952865A 1965-11-22 1965-11-22 Improvements in or relating to injection moulding machines and processes Expired GB1110534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4952865A GB1110534A (en) 1965-11-22 1965-11-22 Improvements in or relating to injection moulding machines and processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4952865A GB1110534A (en) 1965-11-22 1965-11-22 Improvements in or relating to injection moulding machines and processes

Publications (1)

Publication Number Publication Date
GB1110534A true GB1110534A (en) 1968-04-18

Family

ID=10452639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4952865A Expired GB1110534A (en) 1965-11-22 1965-11-22 Improvements in or relating to injection moulding machines and processes

Country Status (1)

Country Link
GB (1) GB1110534A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647309A (en) * 1969-09-19 1972-03-07 Dorn Co V Apparatus for controlling an injection molding machine
US3666141A (en) * 1970-05-25 1972-05-30 Cincinnati Milacron Inc Method and apparatus for iterative control of shot size and cushion size
DE2300171A1 (en) * 1973-01-03 1974-07-11 Bucher Guyer Ag Masch PROCESS FOR REGULATING THE CURING TIME OF THE PLASTIC COMPOUND IN THE FORM OF INJECTION MOLDING MACHINE
FR2455504A1 (en) * 1979-04-30 1980-11-28 Rca Corp SHELL AND METHOD FOR MOLDING A DISC PREFORM
FR2503625A1 (en) * 1981-04-14 1982-10-15 Mitsui Petrochemical Ind METHOD FOR INJECTION MOLDING WITH COMPRESSION OF HIGH MOLECULAR WEIGHT POLYETHYLENE
GB2122531A (en) * 1982-04-20 1984-01-18 Kulzer & Co Gmbh Method and apparatus for making dental prostheses
FR2545033A1 (en) * 1983-04-28 1984-11-02 Cibie Projecteurs METHOD AND DEVICE FOR PRODUCING PLASTIC PARTS ON INJECTION PRESS
DE3725199A1 (en) * 1987-07-27 1989-02-16 Mannesmann Ag DEVICE FOR CLOSING THE MOLD ON AN INJECTION MOLDING MACHINE
GB2251200A (en) * 1990-12-29 1992-07-01 Henry Tooze Monitoring the tie bar extensions of toggle operated injection moulding machines
EP0477967A3 (en) * 1990-09-28 1992-12-02 Sumitomo Chemical Company, Limited Method for press molding thermoplastic resin
US5264163A (en) 1957-10-22 1993-11-23 Lemelson Jerome H Method of controlling the internal structure of matter
US5360329A (en) 1957-10-22 1994-11-01 Lemelson Jerome H Molding/extrusion apparatus with temperature and flow control
WO2003018286A1 (en) * 2001-08-27 2003-03-06 Krauss-Maffei Kunststofftechnik Gmbh Method and device for producing planar plastic moulded parts, in particular plastic panes
CN112571745A (en) * 2020-11-19 2021-03-30 青岛歌尔微电子研究院有限公司 Pressure control method and injection molding equipment

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360329A (en) 1957-10-22 1994-11-01 Lemelson Jerome H Molding/extrusion apparatus with temperature and flow control
US5264163A (en) 1957-10-22 1993-11-23 Lemelson Jerome H Method of controlling the internal structure of matter
US3647309A (en) * 1969-09-19 1972-03-07 Dorn Co V Apparatus for controlling an injection molding machine
US3666141A (en) * 1970-05-25 1972-05-30 Cincinnati Milacron Inc Method and apparatus for iterative control of shot size and cushion size
DE2300171A1 (en) * 1973-01-03 1974-07-11 Bucher Guyer Ag Masch PROCESS FOR REGULATING THE CURING TIME OF THE PLASTIC COMPOUND IN THE FORM OF INJECTION MOLDING MACHINE
FR2455504A1 (en) * 1979-04-30 1980-11-28 Rca Corp SHELL AND METHOD FOR MOLDING A DISC PREFORM
FR2503625A1 (en) * 1981-04-14 1982-10-15 Mitsui Petrochemical Ind METHOD FOR INJECTION MOLDING WITH COMPRESSION OF HIGH MOLECULAR WEIGHT POLYETHYLENE
GB2122531A (en) * 1982-04-20 1984-01-18 Kulzer & Co Gmbh Method and apparatus for making dental prostheses
FR2545033A1 (en) * 1983-04-28 1984-11-02 Cibie Projecteurs METHOD AND DEVICE FOR PRODUCING PLASTIC PARTS ON INJECTION PRESS
DE3725199A1 (en) * 1987-07-27 1989-02-16 Mannesmann Ag DEVICE FOR CLOSING THE MOLD ON AN INJECTION MOLDING MACHINE
EP0477967A3 (en) * 1990-09-28 1992-12-02 Sumitomo Chemical Company, Limited Method for press molding thermoplastic resin
GB2251200A (en) * 1990-12-29 1992-07-01 Henry Tooze Monitoring the tie bar extensions of toggle operated injection moulding machines
WO2003018286A1 (en) * 2001-08-27 2003-03-06 Krauss-Maffei Kunststofftechnik Gmbh Method and device for producing planar plastic moulded parts, in particular plastic panes
US7824597B2 (en) 2001-08-27 2010-11-02 Kraussmaffei Technologies Gmbh Method and apparatus for making flat molded plastic articles
EP2289686A1 (en) * 2001-08-27 2011-03-02 KraussMaffei Technologies GmbH Method and device for producing planar plastic moulded parts, in particular plastic panes
CN112571745A (en) * 2020-11-19 2021-03-30 青岛歌尔微电子研究院有限公司 Pressure control method and injection molding equipment

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