Apparatus for severing and feeding thermoplastic sheet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 1984
Grant Date -
N/A
app pub date -
Dec 8, 1981
filing date -
Dec 8, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for severing thermoplastic sheet continuously produced from an extruder and successively feeding a length of plastic web to an intermittently operated forming machine. The extruded and cooled sheet drops from a roller down on a belt conveyor running at the same speed as the extrusion rate and is transferred towards the forming machine by a pair of clamp chains. The chains extend from sprocket wheels located in the range of the belt conveyor and are adapted to run intermittently at a speed higher than the extrusion rate and in accordance with the operation of the forming operation. The running speed of the conveyor belt can be increased to the higher speed when the falling sheet has been severed thereabove in the suspended position so that the severed plastic web is grasped by the clamp chains to be fed to the shaping station of the forming machine.
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