FR2425930A1 - Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79) - Google Patents

Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79)

Info

Publication number
FR2425930A1
FR2425930A1 FR7814562A FR7814562A FR2425930A1 FR 2425930 A1 FR2425930 A1 FR 2425930A1 FR 7814562 A FR7814562 A FR 7814562A FR 7814562 A FR7814562 A FR 7814562A FR 2425930 A1 FR2425930 A1 FR 2425930A1
Authority
FR
France
Prior art keywords
moulding
injection
cpd
base
mantle
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.)
Granted
Application number
FR7814562A
Other languages
French (fr)
Other versions
FR2425930B3 (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
Application filed by Individual filed Critical Individual
Priority to FR7814562A priority Critical patent/FR2425930A1/en
Publication of FR2425930A1 publication Critical patent/FR2425930A1/en
Application granted granted Critical
Publication of FR2425930B3 publication Critical patent/FR2425930B3/fr
Granted 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
    • B29C45/26—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
    • B29C2045/2748—Insulating layers covering the electrical heating element

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

A base part bears against an injection-plate and an inner part extends to an injection orifice in a mould cavity. The inner part has a longitudinal bore and is surrounded over its entire length, by a tubular heater. A jacket surrounds the heater from the base part as far as near the injection orifice. The design enables moulding cpd. to be kept at correct moulding temp. until it reaches the mould cavity. It contains no sensitive components liable to cause problems or trouble in operation, and allows prompt resumption of the moulding cycles after stoppages however caused.
FR7814562A 1978-05-17 1978-05-17 Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79) Granted FR2425930A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814562A FR2425930A1 (en) 1978-05-17 1978-05-17 Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814562A FR2425930A1 (en) 1978-05-17 1978-05-17 Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79)

Publications (2)

Publication Number Publication Date
FR2425930A1 true FR2425930A1 (en) 1979-12-14
FR2425930B3 FR2425930B3 (en) 1980-12-19

Family

ID=9208326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814562A Granted FR2425930A1 (en) 1978-05-17 1978-05-17 Injection nozzle for hot sprue injection moulding tool - has low-voltage heater, base, and mantle, to keep moulding cpd. at correct temp. (PT 6.4.79)

Country Status (1)

Country Link
FR (1) FR2425930A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492728A1 (en) * 1980-10-24 1982-04-30 Gellert Jobst PLASTIC INJECTION MOLD NOZZLE AND METHOD FOR MANUFACTURING THE SAME
FR2629011A1 (en) * 1988-03-22 1989-09-29 Piacentile Ets Injection moulding nozzle - has cast metal filled in heating coil pocket to improve heat distribution to nozzle passage
EP0468483A2 (en) * 1990-07-27 1992-01-29 Jobst Ulrich Gellert Insulated injection molding nozzle
JP2018508636A (en) * 2015-03-19 2018-03-29 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Cationic direct dye

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492728A1 (en) * 1980-10-24 1982-04-30 Gellert Jobst PLASTIC INJECTION MOLD NOZZLE AND METHOD FOR MANUFACTURING THE SAME
FR2629011A1 (en) * 1988-03-22 1989-09-29 Piacentile Ets Injection moulding nozzle - has cast metal filled in heating coil pocket to improve heat distribution to nozzle passage
EP0468483A2 (en) * 1990-07-27 1992-01-29 Jobst Ulrich Gellert Insulated injection molding nozzle
EP0468483A3 (en) * 1990-07-27 1992-05-27 Jobst Ulrich Gellert Insulated injection molding nozzle
JP2018508636A (en) * 2015-03-19 2018-03-29 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Cationic direct dye

Also Published As

Publication number Publication date
FR2425930B3 (en) 1980-12-19

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