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Title:
PRODUCTION OF FOAMED PLASTIC PRODUCT AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3176666
Kind Code:
B2
Abstract:

PURPOSE: To shorten a molding cycle by a method wherein a foamed plastic product is cooled by cooling molds from the top and rear surfaces thereof by using cooling fluid sprayed to the rear surfaces of the molds in mold chambers provided on the rear surfaces of the molds and cooling fluid supplied to a parting line chamber in the joint of both the molds.
CONSTITUTION: Cooling lines 11, 12 are provided in mold chambers 8, 9 formed on the rear surfaces of molds 1, 2 in a pair of master frames 4, 5, which are separably provided opposed to each other. Furthermore, a cooling tube 13 for supplying cooling fluid into a parting line chamber 10 formed in the joint of the molds 1, 2 is connected to either the master frame 4 or 5. In this manner, a foamed plastic product thermally molded in the cavity formed between the pair molds 1 and 2 can be cooled uniformly in a short time without generating a temperature difference in both the molds 1, 2 as a whole, and a molding cycle can be reduced to a great extent.


Inventors:
Hayashi, Tatsuo
Application Number:
JP28364191A
Publication Date:
June 18, 2001
Filing Date:
October 03, 1991
Export Citation:
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Assignee:
DAISEN KOGYO:KK
International Classes:
B29C33/04; B29C44/00; B29K105/04; (IPC1-7): B29C44/00; B29C33/04
Attorney, Agent or Firm:
名嶋 明郎 (外2名)



 
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