GB1118692A - Improvements in or relating to injection moulding machines - Google Patents

Improvements in or relating to injection moulding machines

Info

Publication number
GB1118692A
GB1118692A GB4370865A GB4370865A GB1118692A GB 1118692 A GB1118692 A GB 1118692A GB 4370865 A GB4370865 A GB 4370865A GB 4370865 A GB4370865 A GB 4370865A GB 1118692 A GB1118692 A GB 1118692A
Authority
GB
United Kingdom
Prior art keywords
injection
nozzle
pin
plunger
during
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
GB4370865A
Inventor
Brian Thomas Janes
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB4370865A priority Critical patent/GB1118692A/en
Publication of GB1118692A publication Critical patent/GB1118692A/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
    • B29C45/20—Injection nozzles
    • B29C45/23—Feed stopping equipment
    • B29C45/231—Needle valve systems therefor

Abstract

1,118,692. Injection moulding machines. SMITHS INDUSTRIES Ltd. 11 Oct., 1966 [15 Oct., 1965], No. 43708/65. Heading B5A. The nozzle of an injection moulding machine has a valve pin 24 which is held in closed position during retraction of the injection ram (not shown) and during the initial part of the injection stroke, and is opened during the injection stroke by the pressure of moulding material on a shoulder 27 on the pin 24. The means for closing the nozzle pin 24 comprises a pin 29 having a spherical portion 30 for pivotal movement in a radial bore 28 in the nozzle, and connected by a Bowden cable 31 to an air cylinder 33. Air is supplied to the cylinder 33 through a valve 34 until a plunger 35 is engaged by a plunger 37 during the injection stroke. The plunger is spring mounted in a block 36 connected to the injection ram. The nozzle has four bores 12 (only one shown) for passage of moulding material.
GB4370865A 1965-10-15 1965-10-15 Improvements in or relating to injection moulding machines Expired GB1118692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4370865A GB1118692A (en) 1965-10-15 1965-10-15 Improvements in or relating to injection moulding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4370865A GB1118692A (en) 1965-10-15 1965-10-15 Improvements in or relating to injection moulding machines

Publications (1)

Publication Number Publication Date
GB1118692A true GB1118692A (en) 1968-07-03

Family

ID=10429974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4370865A Expired GB1118692A (en) 1965-10-15 1965-10-15 Improvements in or relating to injection moulding machines

Country Status (1)

Country Link
GB (1) GB1118692A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358033A (en) * 1980-05-05 1982-11-09 Export Tool Company Injection molding assembly
EP3380295B1 (en) 2016-06-09 2020-01-22 Synventive Molding Solutions, Inc. Cable transmission of actuator control for injection molding system
US11731330B2 (en) 2020-04-08 2023-08-22 Mold-Masters (2007) Limited Molten plastic delivery system with push-pull cable actuation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358033A (en) * 1980-05-05 1982-11-09 Export Tool Company Injection molding assembly
EP3380295B1 (en) 2016-06-09 2020-01-22 Synventive Molding Solutions, Inc. Cable transmission of actuator control for injection molding system
EP3380295B2 (en) † 2016-06-09 2022-11-09 Synventive Molding Solutions, Inc. Cable transmission of actuator control for injection molding system
US11731330B2 (en) 2020-04-08 2023-08-22 Mold-Masters (2007) Limited Molten plastic delivery system with push-pull cable actuation

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