Method of cooling multilayer preforms

Details Method of cooling multilayer preforms Method of cooling multilayer preforms

1994-12-28

1996-12-10

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Forming plural articles

26432814, 26432816, 264513, 264519, 264538, 264904, 2643288, 425526, 425533, 425547, 425534, B29C 4516, B29C 4572, B29C 4906

Patent

active

055827888

ABSTRACT:
Method of making multilayer preforms which resist delamination and in a reduced cycle time. A first array of preforms are molded onto a first array of cores in an associated array of mold cavities, the cores and preforms are removed from the mold cavities as soon as possible without significant physical preform deformation, and the preforms are then cooled on the cores while a second array of cores is positioned in the mold cavities. Cooling on the cores prevents delamination of the preform layers and reduces the in-mold cooling time. Providing multiple sets of cores on a rotating turret further reduces the cycle time compared to the prior art use of robotic cooling tubes.

REFERENCES:
patent: 3642397 (1972-02-01), Schippers et al.
patent: 4201535 (1980-05-01), Ninneman
patent: 4330257 (1982-05-01), Rees et al.
patent: 4568261 (1986-02-01), McHenry et al.
patent: 4786455 (1988-11-01), Krishnakumar et al.

Affiliated with

Also associated with

Rating

Method of cooling multilayer preforms 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 of cooling multilayer preforms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cooling multilayer preforms will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-421982