GB957989A - Improvements in or relating to injection moulding apparatus - Google Patents

Improvements in or relating to injection moulding apparatus

Info

Publication number
GB957989A
GB957989A GB649962A GB649962A GB957989A GB 957989 A GB957989 A GB 957989A GB 649962 A GB649962 A GB 649962A GB 649962 A GB649962 A GB 649962A GB 957989 A GB957989 A GB 957989A
Authority
GB
United Kingdom
Prior art keywords
injection
springs
pressure
plate
mould part
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
GB649962A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB957989A publication Critical patent/GB957989A/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
    • B29C45/46—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
    • 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
    • B29C45/7613—Measuring, controlling or regulating the termination of flow of material into the mould

Landscapes

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

Abstract

957,989. Injection moulding machines. H. LUDWIG, [trading as DEUTSCHE SPECIALMASCHINENEN CO. H. LUDWIG KOMM.- GES.]. Feb. 20, 1962 [April 26, 1961], No. 6499/62. Heading B5A. An injection moulding apparatus has an extended mould part 19 attached to a resiliently mounted displaceable plate 14 which actuates a switch 26 to terminate injection when a predetermined internal pressure is reached and also to maintain this pressure after injection is completed. The plate 14 is mounted on a ram 12 by means of springs 15 and screw bolts 16. The compression of the springs 15 may be adjusted by means of screws 17. On injection, the pressure in the mould rises, and as the mould part 19 and the plate 14 are displaced downwardly they operate the switch 26 which contacts means 25 for moving a slider 24 to stop injection. The injection worm or piston (not shown) is stopped simultaneously. As the material cools and shrinks the mould part 14 is pushed up by the springs to maintain the same pressure on the material.
GB649962A 1961-04-26 1962-02-20 Improvements in or relating to injection moulding apparatus Expired GB957989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961D0035926 DE1243379B (en) 1961-04-26 1961-04-26 Device for controlling an injection molding machine for the production of objects made of plastic or rubber

Publications (1)

Publication Number Publication Date
GB957989A true GB957989A (en) 1964-05-13

Family

ID=7042862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB649962A Expired GB957989A (en) 1961-04-26 1962-02-20 Improvements in or relating to injection moulding apparatus

Country Status (4)

Country Link
AT (1) AT247194B (en)
CH (1) CH396403A (en)
DE (1) DE1243379B (en)
GB (1) GB957989A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608724A (en) * 1983-11-30 1986-09-02 Kloeckner Ferromatik Desma Gmbh Machine for the direct soling of shoe uppers
EP0999023A1 (en) * 1998-04-24 2000-05-10 Idemitsu Petrochemical Co., Ltd. Metal mold driving device for molding, holding device, and holding method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640561A1 (en) * 1986-11-27 1988-06-09 Kloeckner Ferromatik Desma Last for shoe uppers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE15295C (en) * H. HEISE in Bremen, Hohenpfad 16 Device for lifting the thread tension when the fabric locker is released
GB655899A (en) * 1948-05-06 1951-08-08 Monroe Auto Equipment Co Improvements in or relating to injection molding apparatus
FR1030256A (en) * 1950-12-29 1953-06-11 Injection molding process for plastics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608724A (en) * 1983-11-30 1986-09-02 Kloeckner Ferromatik Desma Gmbh Machine for the direct soling of shoe uppers
EP0999023A1 (en) * 1998-04-24 2000-05-10 Idemitsu Petrochemical Co., Ltd. Metal mold driving device for molding, holding device, and holding method
EP0999023A4 (en) * 1998-04-24 2002-10-16 Idemitsu Petrochemical Co Metal mold driving device for molding, holding device, and holding method

Also Published As

Publication number Publication date
AT247194B (en) 1966-05-25
CH396403A (en) 1965-07-31
DE1243379B (en) 1967-06-29

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