Apparatus for rolling up web material

Winding – tensioning – or guiding – Convolute winding of material – With tearing or breaking

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Details

2425322, 2425336, 2425411, B65H 1926, B65H 1930

Patent

active

053379683

ABSTRACT:
In an apparatus for rolling up web material which comprises a disk or turret rotatably mounted on a stationary frame and a plurality of mandrels rotatably mounted to the disk, each mandrel being indexable to each of a take-up position, a waiting position and a removal position through selective rotation of the disk, the improvement which comprises a source of compressed air connected to the frame adjacent the removal position, a separate vacuum tube apparatus connected to the frame adjacent the waiting position and being axially movable toward and away from the waiting mandrel, a vacuum pump connected to the vacuum tube apparatus for creating a vacuum in the vacuum tube apparatus, the mandrels each comprising a longitudinal bore extending from an open end thereof and a plurality of radial nozzles communicating with the longitudinal bore, wherein the vacuum tube apparatus is selectively movable into contact with the open end of the waiting mandrel so that the vacuum is communicated through the nozzles to thereby draw the web material around the waiting mandrel, and wherein the source of compressed air is communicated with the mandrel in the removal position so that compressed air is communicated through the nozzles to thereby assist in removing the completed roll of web material from that mandrel.

REFERENCES:
patent: 2385692 (1945-09-01), Corbin et al.
patent: 2520826 (1950-08-01), Beck
patent: 2575631 (1951-11-01), Link
patent: 3527424 (1970-09-01), Goldman
patent: 3743199 (1973-07-01), Karr et al.
patent: 3908924 (1975-09-01), Schulze
patent: 4541583 (1985-09-01), Forman et al.
patent: 4630783 (1986-12-01), Mulfarth
patent: 4715552 (1987-12-01), Matsumoto

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