Abstract: The present invention provides an apparatus to strip material from material cores. The apparatus of the invention comprises a frame; a belt attached to the frame; means for rotationally driving the belt; and means for biasing material to be stripped against the belt. According to the invention, the belt is an endless conveying belt, driven by a motor, gear box controlled with an A/C variable frequency drive. The material being stripped is biased against the belt by a plurality of positioning members rotatably attached to the frame. The positioning members are spaced at intervals along the length of the conveying belt such that the distance between ecah positioning member is greater than the diameter of the expiring material core being stripped. Each positioning member and the rotating belt meet to create a nip. An expiring core is placed on the rotating conveying belt and the leasing edge of the material is self-threaded into the nip.
Type:
Grant
Filed:
April 30, 1991
Date of Patent:
March 30, 1993
Assignee:
R.R. Donnelley & Sons Company
Inventors:
Rex E. Burner, Larry C. Kisting, David Fehrer