Web splicing apparatus

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Means joining flexible indefinite length or endless bodies...

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Details

156507, 156510, 156511, 156159, 225 36, 225 89, 242 585, B65H 1908, B65H 1922, B32B 3100, B26F 302

Patent

active

044500394

ABSTRACT:
A splicing head for an automatic zero-speed web splicing machine is disclosed in which the end of a new roll of web material can be prepared for splicing directly on resilient nip rollers which are used by the machine to perform the splicing operation. In particular, the splicing head includes a knife carriage through which the web material passes and which can be moved transversely to the web travel direction under control of a cam and lever arrangement to introduce a predetermined loop of slack into the web material.
The action of the cam and lever mechanism also positions a serrated preparation blade mounted on cantilever arms in front of the nip rollers for squarely trimming the edge of the web material. After the web material has been trimmed the preparation blade can be moved by the cam and lever arrangement to an out-of-the-way position to allow preparation of the web material and to prevent interference with the splicing machine as the web material runs through the machine after the splice has been made.

REFERENCES:
patent: 2320092 (1943-05-01), Miller
patent: 3627616 (1971-12-01), Davis
patent: 4108391 (1978-08-01), Martinez
patent: 4190475 (1980-02-01), Marschke
patent: 4279370 (1981-07-01), Lash

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