Device for controlling temperature of a nozzle

Details Device for controlling temperature of a nozzle Device for controlling temperature of a nozzle

1996-08-09

1998-07-07

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Temperature control

264406, 425549, B29C 4578

Patent

active

057765138

ABSTRACT:
A device for controlling temperature of an injection molding machine nozzle to maintain uniform temperature all over the nozzle and to prevent stringiness, drooling and so on of melted resin, which provides a temperature controller for controlling temperature at the front portion and the rear portion of the nozzle by controlling the electric power supplied to the front heater and the rear heater with ON-OFF operation of a relay and a voltage regulator for controlling voltage applied to one of the front heater or the rear heater by an operational amplifier detecting differences of temperature at the front portion and the rear portion of the nozzle.

REFERENCES:
patent: 5272644 (1993-12-01), Katsumata et al.
patent: 5435711 (1995-07-01), Yamada
patent: 5529477 (1996-06-01), Takizawa et al.
Japanese Abstract No. 3-147826, "Temperature Controlling Device for Heating Zone," K. Omori, Meiki Co. Ltd., 1989.
Japanese Abstract No. JP 07-25117, Power Consumption Control Device of Printer, 27 Jan. 1995.

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