Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Control means responsive to product weight or dimension
Patent
1975-10-17
1977-07-12
Lazarus, Richard B.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Control means responsive to product weight or dimension
425142, 425378R, 264 407, B29F 300
Patent
active
040351254
ABSTRACT:
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.
REFERENCES:
patent: 3538210 (1970-11-01), Gatto
patent: 3579623 (1971-05-01), Thomson et al.
patent: 3813200 (1974-05-01), Gergely
patent: 3828726 (1974-08-01), Dietze et al.
patent: 3834349 (1974-09-01), Dietze et al.
Lazarus Richard B.
Philip Morris Incorporated
LandOfFree
Jam prevention unit for extrusion process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Jam prevention unit for extrusion process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jam prevention unit for extrusion process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-485409