Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including product handling means
Patent
1975-01-20
1976-05-04
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including product handling means
425DIG204, 425DIG206, 425DIG207, 425DIG209, B29D 2303
Patent
active
039543757
ABSTRACT:
A molding machine into which nested stacks of preforms or parisons at ambient temperatures are loaded, which denests and applies the preforms individually onto complementary shaped mandrels in the machine. The preforms are made of a thermoplastic material, such as polystyrene, and the mandrels of the molding machine are internally heated to heat each parison as the machine is intermittently rotated. The mandrels are circumferentially mounted about a carriage in the machine and the carriage rotates about a horizontal axis. When viewing the machine at the side at which the carriage rotates in a counterclockwise direction, the preforms are individually applied to the mandrels at the three o'clock position by a loading mechanism. From the three o'clock position around and to the six o'clock position each preform is being heated on its mandrel. At the six o'clock position a split mold closes about the preform and air under pressure is directed through the mandrel to cause the heated preform to expand to the mold configuration and be cooled upon engagement with the mold walls. A pick-off mechanism at the four o'clock position removes the finished reformed article from each mandrel and releases the finished article from the machine to container filling lines.
REFERENCES:
patent: 2914799 (1959-12-01), Canfield
patent: 3412186 (1968-11-01), Piotrowski
patent: 3816046 (1974-06-01), Farrell
patent: 3842149 (1974-10-01), Vollers
Hallengren Charles Richard
Strzyzynski Jerome A.
Beart R. W.
Benno E. L.
Hampilos Gus T.
Husar Francis S.
Illinois Tool Works Inc.
LandOfFree
Mandrel and preform assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mandrel and preform assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mandrel and preform assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-674616