GB1123453A - Improvements in methods of and apparatus for controlling the injection operations ofinjection-moulding machines - Google Patents

Improvements in methods of and apparatus for controlling the injection operations ofinjection-moulding machines

Info

Publication number
GB1123453A
GB1123453A GB980266A GB980266A GB1123453A GB 1123453 A GB1123453 A GB 1123453A GB 980266 A GB980266 A GB 980266A GB 980266 A GB980266 A GB 980266A GB 1123453 A GB1123453 A GB 1123453A
Authority
GB
United Kingdom
Prior art keywords
injection
pressure
moulding machines
ofinjection
controlling
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
GB980266A
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.)
Desma Werke GmbH
Original Assignee
Desma Werke 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 Desma Werke GmbH filed Critical Desma Werke GmbH
Publication of GB1123453A publication Critical patent/GB1123453A/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
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/531—Drive means therefor

Landscapes

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

Abstract

1,123,453. Injection moulding machines. DESMA-WERKE G.m.b.H. 7 March, 1966 [7 April, 1965], No. 9802/66. Heading B5A. Injection is terminated when the pressure acting on a piston 12 connected to an injection piston exceeds a predetermined pressure when the mould is filled. As described, the injection piston comprises an axially reciprocable worm 10. The pressure space 16 is connected to a pressure-sensitive device 22 which operates through a switch 23 and relay 24 to control a solenoid operated slide valve 18. An adjustable time delay relay 27 may be included to allow for materials having differing flow characteristics.
GB980266A 1965-04-07 1966-03-07 Improvements in methods of and apparatus for controlling the injection operations ofinjection-moulding machines Expired GB1123453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965D0046982 DE1217595C2 (en) 1965-04-07 1965-04-07 Method and device for controlling the injection process of an injection molding machine

Publications (1)

Publication Number Publication Date
GB1123453A true GB1123453A (en) 1968-08-14

Family

ID=7050097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB980266A Expired GB1123453A (en) 1965-04-07 1966-03-07 Improvements in methods of and apparatus for controlling the injection operations ofinjection-moulding machines

Country Status (5)

Country Link
AT (1) AT301848B (en)
BE (1) BE679224A (en)
DE (1) DE1217595C2 (en)
GB (1) GB1123453A (en)
NL (1) NL6603856A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204756A1 (en) * 1982-02-11 1983-08-18 Peter Prof. Dipl.-Ing. 7080 Aalen Wippenbeck METHOD FOR FILLING A MOLDING TOOL WITH PLASTIFICABLE MATERIAL BY MEANS OF AN INJECTION PISTON OR A PUSHING SCREW ACTING AS AN INJECTION PISTON, AND DEVICE FOR CARRYING OUT THE METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE881733C (en) * 1949-08-28 1953-07-02 Emil Hempel Injection molding machine for thermoformable plastics
FR1030256A (en) * 1950-12-29 1953-06-11 Injection molding process for plastics
FR1262648A (en) * 1960-04-19 1961-06-05 Improvements in plastic injection molding
US3140332A (en) * 1961-03-01 1964-07-07 Lombard Ind Inc Injection molding method and apparatus
DE1868484U (en) * 1961-03-02 1963-03-07 Robert Hanning DEVICE FOR INJECTING LARGE AREA PLASTIC PARTS.

Also Published As

Publication number Publication date
NL6603856A (en) 1966-10-10
DE1217595C2 (en) 1973-01-18
AT301848B (en) 1972-09-25
DE1217595B (en) 1966-05-26
BE679224A (en) 1966-09-16

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