Fmc Corporation

Rene Francois De Bin

Emiel Y Lambrecht

William Van Der Gucht

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.

Apparatus for rolling up web material

The disclosed device comprises a roller, rotatably mounted on a pivotable arm, for maintaining rolling contact with the edges of sheets being adhesively laminated. One of the sheets is rather stiff board and the other a thin gauge sheet covering one side of the board. As the laminated sheets advance the roller, which is in pressure engagement with the edges of the board parallel to the direction of movement, moves laterally inwardly to also provide rolling contact with the lateral trailing edge of the board. In doing so the corners of the thin wrap are pressed tightly against the edges of the board to produce well defined corners.

Growing community of inventors

Aalst, Belgium

Rene Francois De Bin