Apparatus for splicing the trailing end of a web from an exhaust

Details Apparatus for splicing the trailing end of a web from an exhaust Apparatus for splicing the trailing end of a web from an exhaust

1982-03-09

1985-01-08

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Means joining flexible indefinite length or endless bodies...

156502, 156510, 156505, 156361, 156353, 242 584, 242 585, G03D 1504, B31F 500, B32B 3100, B26D 500

Patent

active

044926090

ABSTRACT:
Apparatus for splicing the trailing end of a web from an exhausted supply roll to the leading end of a web from a new supply roll comprises a cutting mechanism consisting of a cutter cylinder having a single cutter and a backing cylinder and serving to make a transverse severing cut through both superimposed webs passed between said cylinders, one of which is provided in a longitudinal strip- or sector-shaped portion with suction holes for retaining the leading end of the new web behind the severing cut. The apparatus also comprises a tape-applying cylinder, which is adapted to carry a tape which is adhesive on one side, and to apply the adhesive tape to the two webs at their abutting cut edges as they pass between the tape-applying cylinder. An outwardly facing adhesive tape is secured to the leading end of the web from the new supply roll and the backing cylinder which is associated with the cutter cylinder is adapted to be rotated at a peripheral velocity that is equal to the velocity of the web from the exhausted roll and to be moved into engagement with the new supply roll, which is adapted to be accelerated to the same peripheral velocity. The backing cylinder constitutes also the backpressure cylinder associated with the tape-applying cylinder, and means are provided for moving the cutter cylinder and the tape-applying cylinder into and out of engagement with the common backing cylinder.

REFERENCES:
patent: 3198452 (1965-08-01), Buettel
patent: 3717057 (1973-02-01), Takimoto
patent: 3939031 (1976-02-01), Takimoto
patent: 4234365 (1980-11-01), Shimizu et al.
patent: 4238261 (1980-12-01), Tetro

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