Injection molding machine pressure transducer

Details Injection molding machine pressure transducer Injection molding machine pressure transducer

B - Operations, Transporting

29

C

B29C 45/77 (2006.01) B29C 45/17 (2006.01) F15B 5/00 (2006.01) G01L 9/00 (2006.01)

Patent

CA 2112867

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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