Hot tip bushing means for a synthetic resin injection molding ma

Details Hot tip bushing means for a synthetic resin injection molding ma Hot tip bushing means for a synthetic resin injection molding ma

1984-01-24

1985-05-14

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219424, 219426, 219523, 219530, 219544, 219540, 2221465, 425548, 425549, F27B 1406

Patent

active

045174539

ABSTRACT:
This invention relates to hot tip bushing means for a synthetic resin injection molding machine, which can reduce the pressure loss at the injection molding time and determine the position of a heating tip easily and accurately. To attain this purpose, a straight resin flow passage is formed axially in a cylindrical body of the hot tip bushing means and the fused resin passing through the straight resin flow passage is heated by an outer heater. Further, a cylindrical body of the hot tip bushing means which is near the heating tip is fit to a mold sprue, thereby the position of the heating tip is determined easily and accurately.

REFERENCES:
patent: 3010154 (1961-11-01), Swenson
patent: 4033485 (1977-07-01), Kohler
patent: 4230934 (1980-10-01), ter Beek et al.
patent: 4238671 (1980-12-01), Gellert
patent: 4279588 (1981-07-01), Gellert
patent: 4344750 (1982-08-01), Gellert
patent: 4373132 (1982-02-01), Vartanian
patent: 4376244 (1982-03-01), Gellert

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