Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Differential temperature conditioning
Patent
1995-10-12
1997-02-11
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Differential temperature conditioning
264521, 264540, 264542, B29C 4904, B29C 4964
Patent
active
056017790
ABSTRACT:
A method of manufacturing hollow resin products which are curved two-dimensionally or three-dimensionally. The method includes extruding a tubular parison from an extruder at a constant speed and cutting the parison at a specified length; receiving the parison extruded from the extruder into a conveyer having a feeder which is driven at the same speed as the extruding speed of the parison; maintaining the parison in the conveyer by stopping the feeder temporarily; feeding a leading portion of the parison to a trailing portion thereof successively through an outlet of the conveyer into a cavity of a lower mold of a blow molding machine by driving the feeder, the cavity being curved two-dimensionally or three-dimensionally; and closing the lower mold with an upper mold of the blow molding machine and blowing compressed gas into the parison in the blow molding machine.
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Hasegawa Ryosuke
Ishikawa Hajime
Ogawa Masaaki
Yamamoto Hideo
Tigers Polymer Corporation
Timm Catherine
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