Injection molding machine pressure transducer

Details Injection molding machine pressure transducer Injection molding machine pressure transducer

1993-01-05

1994-11-01

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

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

Temperature control

73705, 73708, 737291, 73730, 425146, 425149, 425170, 425542, 425563, B29C 4577, B29C 4578

Patent

active

053603311

ABSTRACT:
A pressure transducer for an injection molding machine includes a housing coupled to a nozzle of an injection molding machine. A hollow stress tube, attached to the housing, through which molten material of the injection molding machine flows, bellows in response to pressure from the material. An outer ring having an opening is coupled to the stress tube such that the outer ring expands, causing displacement of the outer ring about the opening, when the stress tube bellows. A displacement sensor is included for determining the displacement of the outer ring about the opening. This displacement is directly proportional to the pressure of the material. In this manner, the pressure transducer determines the pressure of the molten material.

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