Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1995-08-21
1997-06-17
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
264536, 264542, B29C 4904, B29C 4978
Patent
active
056394152
ABSTRACT:
A method of forming a hollow article, wherein all the operations such as shifting and opening/closing of a die are performed by electric actuators such as electric motors which operate in accordance with a program operation, thus improving the quality of the hollow article as the product. A parison extruded from an extruder is introduced into and held in a die which has been opened by the operation of a die compacting motor. A crosshead associated with the extruder is lifted to draw the parison, and a parison cutting motor operates to cut the drawn parison. Thus, fully automatic production is realized to ensure high yield of the product.
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Blow Forming document, pp. 45-52; published in Japan in 1970.
Blow Molding Machine Catalog of Japan Steel Works, Ltd. published in Japan in 1990.
Hagiwara Shigeharu
Kato Takaaki
Suzuki Kiyomi
Takanashi Hiroaki
The Japan Steel Works Ltd.
Timm Catherine
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