Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1982-01-15
1983-03-08
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
264532, 264537, B29C 1707
Patent
active
043760902
ABSTRACT:
A single injection blow molding apparatus for making a selected oriented finished product. The apparatus includes the support structure and an injection molding station where a parison is injection molded into a selected configuration. A core rod assembly cooperates in forming the parison which is formed about a first core rod. The parison is conditioned to an orientation temperature. A transfer system is on the support structure for removing the first core rod from the parison and transferring the parison to a blow molding station. The blow molding station is on the support structure and is provided for blow molding the parison while at orientation temperature into the configuration of the finished product. A second core rod assembly with a second core rod cooperates in blowing the parison into the configuration of the finished product. The transfer structure on the support structure assembles the second core rod with the parison at the blow molding station and disassembles it from the oriented finished product. The transfer structure includes parison support to hold the parison when coupled with the core rod and the injection molding and blow molding stations and when removed therefrom to facilitate formation of a finished product and removal of the finished product from the apparatus. A number of different cooling stages are employed in the system. At one point a poppet valve is used to permit air to escape from the blow mold and hasten cooling. In an alternative form, a pre-cure station is provided between the injection molding station and each blow molding station to facilitate conditioning of the parison.
REFERENCES:
patent: 3850562 (1974-11-01), Takeuchi et al.
patent: 3944643 (1976-03-01), Sato et al.
patent: 4061705 (1977-12-01), Marcus
patent: 4151247 (1979-04-01), Hafele
LandOfFree
Injection molding system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Injection molding system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1734229