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US 3,943,640 AGranted
Apparatus for drying strands of plastics material during the manufacture of plastics granules
OwnerRudolf Paul Fritsch, Eckhard Reiner Bohnertinventors
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Abstract
In order to dry wet strands of plastics which have been passed through a cooling bath during the manufacture of plastics granules, we provide an apparatus and a process in which the strands are fed through a gap and a current of air is passed through the gap in order to dry the strands.
Claims3
Apparatus for drying a wet strand of plastic material which has been passed through a cooling bath during a manufacturing operation, said apparatus comprising
- a pair of cooperating rolls;
- means mounting said rolls in cooperative relationship with peripheral surface portions thereof in the area of cooperation forming a gap for the passage of said strand therethrough,
- a pair of feed rolls,
- at least one of said feed rolls having a resilient peripheral surface,
- means mounting said feed rolls with the surfaces thereof making line contact over substantially the entire lengths thereof to form a seal,
- said seal providing a nip through which said strand extends,
- means for driving at least one of said feed rolls to advance said strand through said gap,
- means for rotating said cooperating rolls in the direction of movement of said strand through said gap,
- and means for passing a stream of air through said gap simultaneously with the movement of said strand through said gap.
6 more elements
Dependencies are inferred from the claim text.