Advancing material of indeterminate length – Plural material-moving means – With intermittent material-mover
Patent
1984-10-12
1987-09-22
Hornsby, Harvey C.
Advancing material of indeterminate length
Plural material-moving means
With intermittent material-mover
226142, 226150, 226159, 226162, B65H 2018
Patent
active
046949828
ABSTRACT:
A pneumatic feeder is disclosed having twin feed slides axially reciprocable in side by side relation along parallel axes for intermittently advancing strip stock to a downstream machine for further processing. Each feed slide has clamps which serve to advance the stock with the traveling slide clamps activated and the clamps of the other slide being deactivated during its idle return movement. Each feed slide additionally has a rotatable crank mechanism and a single acting power cylinder associated therewith for providing a primary motive force in a stock advancing direction in cooperation with the associated crank mechanism. The crank mechanism serves both to trigger actuation of the driving force of the power cylinder to advance its feed slide and additionally provide harmonic deceleration of its feed slide under high rates of feed to ensure precision termination of the advancing feed slide to positively limit its feed stroke. The construction of the disclosed feeder virtually eliminates undesired fluctuations in the advanced stroke limit positions of the stock during each feed cycle due to inherent lost motion of the associated drive mechanism.
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Haugland Scott J.
Hornsby Harvey C.
Pressmate, Inc.
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