Injection molding machine having a heated nozzle touch plate

Details Injection molding machine having a heated nozzle touch plate Injection molding machine having a heated nozzle touch plate

1998-06-22

2000-01-18

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

With separate apparatus cleaning means

Coacting with diverse apparatus elements

264 39, 26432811, 425547, 425574, B29C 4523

Patent

active

060152818

ABSTRACT:
In an injection molding machine, a fixed platen 2 is provided with an air cylinder 11 through a bracket 13 and a nozzle touch plate 10 is coupled to an end of a piston rod 12 of the air cylinder 11. The piston rod 12 is extendably and contractedly driven so that the nozzle touch plate 10 is moved forward and backward between a closed position where the tip opening 9a of the nozzle 9 can be closed and a retreated position where the opening 9a can be opened. On the nozzle touch plate 10, a spherical recess portion slightly larger in radius than the tip sphere of the nozzle 9 is formed as an abutment portion 10a, and a heater 14 for adjusting the temperature is disposed in the nozzle touch plate 10. Alternatively, a passage may be formed in the nozzle touch plate 10 so that a medium of an optimum temperature can be circulated and supplied.

REFERENCES:
patent: 4808355 (1989-02-01), Kamiyama et al.

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