Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1983-07-07
1985-04-30
Derrington, James
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
425114, 425261, 425288, 425297, 425340, B29D 2304
Patent
active
045141592
ABSTRACT:
A blank is formed out of plasticizable, heated plastic by means of an extruding-type material supply head. A somewhat lenticular profiling of the blank is obtained by appropriately controlling a closing member of the material supply head, which is built as a valve cone. When the closing member is closed off against the lower edge of a tube part of the material supply head, the blank is pinched off from the material supply. A flow of air emerging from the ring nozzle serves to ensure complete severance of the blank from the material supply head. After that has been accomplished, the blank enters an open shaping cavity of a die by free fall. By further movement of the die, which is located on a rotary table, the die removes itself from the permanently located material supply head, so that the blank lying in the cavity can be pressed into a molded article by a stamp. Cooling off too much in certain locations on the blank is prevented by the free fall of the blank into the shaping cavity.
REFERENCES:
patent: 1751624 (1930-03-01), DuBrul
patent: 2625891 (1953-01-01), Nagel
patent: 3330006 (1967-07-01), Jenkins
patent: 3375553 (1968-04-01), Criss
patent: 3751189 (1973-08-01), Magerle
Derrington James
KMK Karl Magerle Lizenz AG
LandOfFree
Apparatus for producing molded plastic articles such as packagin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for producing molded plastic articles such as packagin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing molded plastic articles such as packagin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966256