Plastic article or earthenware shaping or treating: apparatus – Dough divider type including trap chamber – Rotating trap chamber pickup
Patent
1975-03-06
1976-11-09
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Dough divider type including trap chamber
Rotating trap chamber pickup
425246, 425324B, 425387B, 425DIG211, 425DIG216, 425DIG232, B29C 1707, B29D 2302, B29D 2303, B29E 100
Patent
active
039908267
ABSTRACT:
An injection blow molding machine includes a rotary indexing plate on which core rod assemblies are mounted for indexing, in a rotary path, through at least three stations. The first station is an injection station at which a plastic parison or preform is injected around the core rod and within a neck mold. The second station is a blow station at which air passes through the core rod into the parison thereby inflating it and forcing it against the surface of the selected blow mold cavity. The third station is an ejection station at which the finished plastic container is removed from the core rod and neck mold. In some applications there are four stations. The fourth station could be used to preheat or precool the core rods preparing them for the start of the ejection cycle. The fourth station in a suggested embodiment could be deployed for preparing for orientation the plastic parison by temperature control; and, thereafter, orientation takes place prior to blowing. Obviously the three and four station machine can be modulated to present a six and eight station machine respectively. In one embodiment, the core rods and supporting indexing plate are vertically reciprocal into and out of the injection mold, blow mold and removal mechanism. In another embodiment, the core rod assemblies do not reciprocate but the associated injection and blow molds and finished product removal mechanism are mounted for vertical reciprocation on a clamp plate. The blown finished containers are indexed to the ejection station at which the containers are removed from the machine. In the event the neck mold is of one-piece construction and the container neck includes threads, an unscrewing device acts to remove the bottle from the mold. If a neck mold of multiple section construction is utilized, the neck mold is opened by suitable mechanical means.
REFERENCES:
patent: 2371195 (1945-03-01), Strauss
patent: 2441525 (1948-05-01), Zesbaugh
patent: 3002225 (1961-10-01), Goller
patent: 3079637 (1963-03-01), Marzillier
patent: 3225382 (1965-12-01), Hagen
patent: 3264684 (1966-08-01), Moslo
patent: 3694124 (1972-09-01), Saumsiegle et al.
patent: 3752615 (1973-08-01), Van Manen
Husar Francis S.
McQuade John
LandOfFree
Injection blow molding apparatus 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 blow molding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection blow molding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1723183