Injection moulding system and heating element for use in such a

Details Injection moulding system and heating element for use in such a Injection moulding system and heating element for use in such a

1997-05-09

1999-02-16

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

26437815, 425549, B29C 4572

Patent

active

058717854

ABSTRACT:
Injection moulding system comprising an elongated manifold having a melt passage extending from a common inlet, branching to a number of outlets; each of which outlet is connected to a central bore (3) of a heated elongated nozzle (1) discharging into a gate (4) leading to a moulding cavity, which nozzle (1) is at least partly surrounded by a heating element (17); the heating element (17) is designed such that its diameter or cross-sectional shape is adjustable; said heating element (17) is encased by a mantle piece (21) of which the internal diameter or internal cross-sectional shape is adjustable too, and a device is provided to clamp fit the heating element (17) with respect to the nozzle (1) under the action of the mantle piece (21).

REFERENCES:
patent: 4613296 (1986-09-01), Nagasaka
Patent Abstracts of Japan vol. 15, No. 416 (M-1172), 23 Oct. 1991 & JP-A-03 176113 (Nissei Plastics Ind Co), 31 Jul. 1991.
Patent Abstracts of Japan vol. 95, No. 9, 31 Oct. 1995 & JP-A-07 142156 (Hitachi Ltd), 2 Jun. 1995.
Patent Abstracts of Japan vol. 95, No. 9, 31 Oct. 1995 & JP-A-07 142157 (Hitachi Ltd), 2 Jun. 1995.

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