GB2044162B - Sprue bushing for an injection moulding apparatus - Google Patents

Sprue bushing for an injection moulding apparatus

Info

Publication number
GB2044162B
GB2044162B GB7935129A GB7935129A GB2044162B GB 2044162 B GB2044162 B GB 2044162B GB 7935129 A GB7935129 A GB 7935129A GB 7935129 A GB7935129 A GB 7935129A GB 2044162 B GB2044162 B GB 2044162B
Authority
GB
United Kingdom
Prior art keywords
injection moulding
moulding apparatus
sprue bushing
sprue
bushing
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
GB7935129A
Other versions
GB2044162A (en
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
Priority claimed from CA317,948A external-priority patent/CA1097871A/en
Priority claimed from US06/036,880 external-priority patent/US4238671A/en
Application filed by Individual filed Critical Individual
Publication of GB2044162A publication Critical patent/GB2044162A/en
Application granted granted Critical
Publication of GB2044162B publication Critical patent/GB2044162B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/2743—Electrical heating element constructions
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/2743—Electrical heating element constructions
    • B29C2045/2748—Insulating layers covering the electrical heating element
GB7935129A 1978-12-14 1979-10-10 Sprue bushing for an injection moulding apparatus Expired GB2044162B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA317,948A CA1097871A (en) 1978-12-14 1978-12-14 Sprue bushing with cast in heater element
US06/036,880 US4238671A (en) 1979-05-08 1979-05-08 Sprue bushing with cast in heater element

Publications (2)

Publication Number Publication Date
GB2044162A GB2044162A (en) 1980-10-15
GB2044162B true GB2044162B (en) 1982-10-13

Family

ID=25668839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7935129A Expired GB2044162B (en) 1978-12-14 1979-10-10 Sprue bushing for an injection moulding apparatus

Country Status (8)

Country Link
CH (1) CH643774A5 (en)
DE (1) DE2948561A1 (en)
FR (1) FR2443919A1 (en)
GB (1) GB2044162B (en)
IL (1) IL58614A (en)
IT (1) IT1127737B (en)
NL (1) NL183877C (en)
PT (1) PT70591A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1142722A (en) * 1980-10-24 1983-03-15 Jobst U. Gellert Sprue bushing and method of manufacture
CA1179813A (en) * 1981-07-15 1984-12-27 Jobst U. Gellert Sprue bushing connector assembly and method
CA1174020A (en) * 1982-01-06 1984-09-11 Jobst U. Gellert Injection molding manifold member and method of manufacture
CA1177215A (en) * 1982-03-31 1984-11-06 Jobst U. Gellert Heater installation in molding members
JPS59142124A (en) * 1983-02-02 1984-08-15 Shigeru Tsutsumi Hot tip bushing for synthetic resin injection molder
DE3335279A1 (en) * 1983-09-29 1985-04-18 EWIKON Entwicklung und Konstruktion GmbH & Co KG, 4900 Herford ELECTRICALLY OPERATED HEATING ELEMENT WITH A FLOW CHANNEL FOR A PLASTIC MELT
CA1230458A (en) * 1984-07-13 1987-12-22 Gellert, Jobst Ulrich Injection molding heated nozzle with brazed in heating element and method of manufacture
IT1179543B (en) * 1984-12-24 1987-09-16 Rutil Srl MOLD AND NOZZLE PERFECTED IN AN INJECTION MOLDING MACHINE
DE3529881A1 (en) * 1985-08-21 1987-02-26 Albers August Temperature-controllable sprue runner for plastic injection moulds
DE3603500A1 (en) * 1986-02-05 1987-08-06 Kloeckner Ferromatik Desma PLASTICIZING CYLINDERS FOR INJECTION MOLDING MACHINES
DE3724088A1 (en) * 1987-07-21 1989-02-02 Ewikon Entwicklung Konstr SURFACE HEATING ELEMENT FOR TOOL AND MACHINE PARTS
FR2629011B1 (en) * 1988-03-22 1990-06-08 Piacentile Ets IMPROVED NOZZLE FOR INJECTION MOLDING
CA1266360A (en) * 1988-04-13 1990-03-06 Jobst Ulrich Gellert Injection molding elongated probe having integral heating element and locating means
CA1261576A (en) * 1988-04-13 1989-09-26 Jobst U. Gellert Injection molding nozzle having multiple thickness heating element and method of manufacture
US5109914A (en) * 1990-09-04 1992-05-05 Electrovert Ltd. Injection nozzle for casting metal alloys with low melting temperatures
DE4041532A1 (en) * 1990-12-22 1992-06-25 Wolff Hans Martin HOT CHANNEL DIVERSION DEVICE FOR INJECTION MOLDING TOOLS
DE19611267C1 (en) * 1996-03-22 1997-07-03 Hotset Heizpatronen Zubehoer Zinc diecasting machine
DE69923324T2 (en) * 1999-11-15 2006-05-11 Teksid Aluminum S.R.L. Mold for injection molding of magnesium and its alloys
US6780003B2 (en) 2002-08-02 2004-08-24 Mold-Masters Limited Removable heater for a hot runner nozzle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322736A (en) * 1969-12-09 1973-07-11 Lucas Industries Ltd Apparatus for hot runner injection moulding
GB1359539A (en) * 1971-10-18 1974-07-10 Pyrotenax Ltd Electric heating device
DE2539785C3 (en) * 1975-09-06 1981-01-29 Dangelmaier Bernhard U. Co, 7410 Reutlingen Hot runner nozzle
CA1097472A (en) * 1976-07-16 1981-03-17 Walter R. Crandell Electrically heated nozzle and method of making the same

Also Published As

Publication number Publication date
IT7928082A0 (en) 1979-12-17
DE2948561C2 (en) 1988-12-29
IT1127737B (en) 1986-05-21
PT70591A (en) 1980-01-01
GB2044162A (en) 1980-10-15
FR2443919B1 (en) 1984-05-25
NL7907655A (en) 1980-06-17
NL183877C (en) 1989-02-16
CH643774A5 (en) 1984-06-29
FR2443919A1 (en) 1980-07-11
IL58614A (en) 1981-10-30
DE2948561A1 (en) 1980-06-26

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19991009