Injection molding machine having a system for detecting a nozzle

Details Injection molding machine having a system for detecting a nozzle Injection molding machine having a system for detecting a nozzle

1989-08-03

1990-05-01

Housel, James C.

Plastic article or earthenware shaping or treating: apparatus

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

Temperature control

425170, 425542, 264406, B29C 4578

Patent

active

049214160

ABSTRACT:
An injection molding machine having a system for detecting nozzle leaks including a thermocouple positioned in the tunnel opening of a stationary platen of the machine at a predetermined location relative to the nozzle to sense instantaneous temperature at the location. A controller coupled to the thermocouple receives signals from the thermocouple and activates an alarm when the temperature in the tunnel opening falls outside of a predetermined normal operating temperature range.

REFERENCES:
patent: 2551439 (1951-05-01), Kovacs
patent: 3733059 (1973-05-01), Pettit

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