GB861911A - Improvements in or relating to injection moulding apparatus - Google Patents

Improvements in or relating to injection moulding apparatus

Info

Publication number
GB861911A
GB861911A GB333657A GB333657A GB861911A GB 861911 A GB861911 A GB 861911A GB 333657 A GB333657 A GB 333657A GB 333657 A GB333657 A GB 333657A GB 861911 A GB861911 A GB 861911A
Authority
GB
United Kingdom
Prior art keywords
chamber
worm
ram
injection
crosshead
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
GB333657A
Inventor
Emerick Gaspar
Gordon Edward Tribe Stimpson
William Arthur Maslen
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.)
Projectile & Engineering Compa
Original Assignee
Projectile & Engineering Compa
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 Projectile & Engineering Compa filed Critical Projectile & Engineering Compa
Priority to GB333657A priority Critical patent/GB861911A/en
Publication of GB861911A publication Critical patent/GB861911A/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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/532—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston using a hollow injection ram co-operating with a coaxial 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
    • B29C45/532—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston using a hollow injection ram co-operating with a coaxial screw
    • B29C2045/533—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston using a hollow injection ram co-operating with a coaxial screw using a continuously rotating plasticising screw

Landscapes

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

Abstract

861,911. Injection moulding. PROJECTILE & ENGINEERING CO. Ltd. Jan. 29, 1958 [Jan. 30, 1957], No. 3336/57. Class 87(2). A worm conveyer 17 is rotated in a plasticizing chamber 11 to force material therethrough, and the chamber 11 has a ram 30 thereon adapted to be forced into an injection chamber 31 to effect injection through a nozzle 32. In Fig. 1 the worm 17 forces material from the plasticizing chamber 11 into the chamber 31 through a passage 13 having a non-return ball valve 34, and thereby forces the ram 30 backwards, carrying with it the chamber 11 and worm 17. When sufficient material has been forced into chamber 31, the worm 17 stops. The ram 30, chamber 11 and worm 17 are then forced forwardly by means of a hydraulic piston 25. In a modification, Figs. 2, 3, injection is effected by forward movement of the ram 30, chamber 11 and worm 17 by means of a ram 51 in a cylinder 52, the worm 17 being simultaneously rotated by a drive motor 53 through a worm drive 54 and coupling 56. Cylinder 52 is secured in a crosshead 47 which is slidably mounted on a carriage 48. The crosshead 47 is connected by tie rods 45, 46 to cylinders 42, 43 containing double-acting rams 40, 41. Cylinders 42, 43 are mounted on a crosshead 44 which carries the chamber 31. After injection, the ram 30, chamber 11, worm 17 and carriage 48 are moved rearwardly by the pressure of material being fed to chamber 31 by worm 17. Finally rams 40, 41 are operated to move the injection chamber 31 away from the mould to break the sprue. Specification 799,672 is referred to.
GB333657A 1957-01-30 1957-01-30 Improvements in or relating to injection moulding apparatus Expired GB861911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB333657A GB861911A (en) 1957-01-30 1957-01-30 Improvements in or relating to injection moulding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB333657A GB861911A (en) 1957-01-30 1957-01-30 Improvements in or relating to injection moulding apparatus

Publications (1)

Publication Number Publication Date
GB861911A true GB861911A (en) 1961-03-01

Family

ID=9756389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB333657A Expired GB861911A (en) 1957-01-30 1957-01-30 Improvements in or relating to injection moulding apparatus

Country Status (1)

Country Link
GB (1) GB861911A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401426A (en) * 1966-05-31 1968-09-17 New Britain Machine Co Plastic injection molding machine
WO2001078963A1 (en) * 2000-04-14 2001-10-25 Krauss-Maffei Kunststofftechnik Gmbh Injection unit for injection moulding machines with a continuously functioning plasticizing unit
CN112706354A (en) * 2020-12-24 2021-04-27 现代精密塑胶模具（深圳）有限公司 Multi-station forming machine
CN117656352A (en) * 2024-02-01 2024-03-08 舒华体育股份有限公司 Body-building equipment plastic accessory demolding device and method thereof
CN118046543A (en) * 2024-04-16 2024-05-17 广东首熙智能装备有限公司 Intermittent feeding and conveying device for injection molding equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401426A (en) * 1966-05-31 1968-09-17 New Britain Machine Co Plastic injection molding machine
WO2001078963A1 (en) * 2000-04-14 2001-10-25 Krauss-Maffei Kunststofftechnik Gmbh Injection unit for injection moulding machines with a continuously functioning plasticizing unit
US7172407B2 (en) 2000-04-14 2007-02-06 Krauss-Maffei Kunststofftechnik Gmbh Injection unit for injection molding machines with continuously operating plasticizing unit
CN112706354A (en) * 2020-12-24 2021-04-27 现代精密塑胶模具（深圳）有限公司 Multi-station forming machine
CN117656352A (en) * 2024-02-01 2024-03-08 舒华体育股份有限公司 Body-building equipment plastic accessory demolding device and method thereof
CN117656352B (en) * 2024-02-01 2024-04-26 舒华体育股份有限公司 Body-building equipment plastic accessory demolding device and method thereof
CN118046543A (en) * 2024-04-16 2024-05-17 广东首熙智能装备有限公司 Intermittent feeding and conveying device for injection molding equipment

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