Method and apparatus for forming preforms with crystallized neck

Details Method and apparatus for forming preforms with crystallized neck Method and apparatus for forming preforms with crystallized neck

1998-04-01

2000-08-08

Davis, Robert

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264535, 264538, 264908, 425526, 425533, 425534, B29C 4964

Patent

active

060997664

ABSTRACT:
A preform molding method and apparatus which can utilize a part of an injection mold to crystallize a neck of a preform. A rotary disc includes a plurality of neck cavity molds. An injection molding station, first heating station, second heating station and cooling/removing station are located at the respective positions where the neck cavity molds stops. The injection molding station injection molds a preform having a neck. The preform is sequentially conveyed the first and second heating stations while being held by neck cavity molds at the neck. Each of the heating stations heats the neck cavity molds so that the neck of the preform is heated up to a temperature of crystallization. Thereafter, the cooling/removing station cools the neck cavity molds. After the cooling step, the preforms are released and removed from the neck cavity molds. Thereafter, the neck cavity molds are returned to the injection molding station.

REFERENCES:
patent: 3929954 (1975-12-01), Valyi
patent: 3944643 (1976-03-01), Sato et al.
patent: 4018860 (1977-04-01), Farrell
patent: 4476084 (1984-10-01), Takada et al.
patent: 4564497 (1986-01-01), Ota et al.
patent: 4846656 (1989-07-01), Denis et al.
patent: 5232715 (1993-08-01), Fukai
Patent Abstracts of Japan, vol. 007, No. 189 (M-237), Aug. 18, 1983 (of JP 58 092535--Toyo Seikan Kaisha, Ltd.).
Patent Abstracts of Japan, vol. 010, No. 265 (M-515), Sep. 10, 1986 (of JP 61 089014--Nissei ASB Kikai KK).
Patent Abstracts of Japan, vol. 007, No. 215 (M-244), Sep. 22, 1983 (of JP 58 110221--Nippon Ester Co. Ltd.).
Patent Abstracts of Japan, vol. 014, No. 506 (M-1044), Nov. 6, 1990 (of JP 02 209219--Toyo Seikan Kaisha, Ltd.).
Patent Abstracts of Japan, vol. 007, No. 221 (M-246), Sep. 30, 1983 (of JP 58 114922--Nippon Ester Co. Ltd.).
Patent Abstracts of Japan, vol. 1998, No. 03, Feb. 27, 1998 (of JP 09 300438--Aokiko Kenyusho KK).

Affiliated with

Also associated with

Rating

Method and apparatus for forming preforms with crystallized neck does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for forming preforms with crystallized neck, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for forming preforms with crystallized neck will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1147270