| 摘要 |
There is disclosed a device for ameliorating the effects of an extrudate jam of an entrance sizing aperture into a cooling chamber, the extrudate being provided by an extrusion process apparatus associated with the cooling chamber. More specifically, the cooling chamber includes a plurality of serially disposed, longitudinally spaced sizing discs for successively sizing the extrudate. The sizing discs are removably mounted within a tray and upon a jam or a break of the extrudate, the sizing discs may be readily removed through a door within the cooling chamber, to permit rapid cleaning thereof, thus minimizing the shut down time of the extrusion process apparatus. Further, there is disclosed a pneumatic drive cylinder whereby upon detection of an outsized extrudate, the drive cylinder is actuated to move the assembly of the tray and its plurality of sizing discs in the direction of the movement of the extrudate. As a result, the extrudate is stretched, thereby tending to free the apertures of the sizing discs as well as the entrance sizing aperture into the cooling chamber.
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