Method of cooling a preform in a cooling tube

Details Method of cooling a preform in a cooling tube Method of cooling a preform in a cooling tube

1991-10-11

1993-01-05

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

By a temperature change

34 7, 34 20, 34 34, 34104, 26432814, 264537, 425445, 425526, 425548, B29C 4964

Patent

active

051768712

ABSTRACT:
A method and apparatus of cooling and solidifying a preform involves: introducing a preform in a heated state released from an injection mold into a cooling tube having a bottom opening and an upper opening through which cooling air flows from the bottom opening to the upper opening, the bottom opening being provided with a fan for cooling air, and inserting a cooling core into the preform to place the cooling core in close contact therewith, the preform being forcibly cooled from interior and exterior thereof by cooling air flowing in a turning state between the preform and the cooling tube and a coolant supplied to the cooling core.

REFERENCES:
patent: 4180379 (1979-12-01), Rainville
patent: 4416608 (1983-11-01), Deardurff
patent: 4449913 (1984-05-01), Krishnakumar et al.
patent: 4571173 (1986-02-01), Chang et al.
patent: 4592719 (1986-06-01), Bellehache
patent: 4818213 (1989-04-01), Roy
Patent Abstracts of Japan, vol. 10, No. 307, 18 Oct. 1986 and JP-A-61 120 723 (The Japan Steel Works Ltd.) 7 Jun. 1986.

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