Injection molding nozzle guide and sealing ring

Details Injection molding nozzle guide and sealing ring Injection molding nozzle guide and sealing ring

1996-11-12

1998-08-18

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

26432815, 425570, B29C 4520

Patent

active

057955999

ABSTRACT:
Injection molding apparatus with a guide and sealing ring mounted around the front end of a heated nozzle. The stainless steel ring fits around the nozzle and has fingers which are bent over the front end of the nozzle to hold it in place. A thermocouple element extends through a groove in the ring and is bent into a hole in the front end of the nozzle. One of the fingers is bent over the thermocouple element to hold it in place. The outer surface of the ring has a circumferential beveled surface leading to a ridge which guides the nozzle into place during insertion and provides a secondary seal against melt leakage. A number of rearwardly extending fingers have notches to receive a wire wound around the nozzle to hold the thermocouple element and the ring itself in place.

REFERENCES:
patent: 4768945 (1988-09-01), Schmidt et al.
patent: 5324191 (1994-06-01), Schmidt
patent: 5326251 (1994-07-01), Gellert
patent: 5346388 (1994-09-01), Gellert

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