Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Means joining flexible indefinite length or endless bodies...
Patent
1981-04-15
1984-04-17
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Means joining flexible indefinite length or endless bodies...
156505, 242 582, 242 585, 242181, B65H 1912, B65H 2100
Patent
active
044432917
ABSTRACT:
An apparatus is disclosed for attaching a running web which is withdrawn from a first source of supply to the leader of a fresh web which is stored in a second source of supply through the use of double sticky back adhesive strips. The apparatus comprises a supply frame provided with a conveyor assembly to transport a roll of material along the supply frame and a splicing head assembly mounted to the roll frame. The splicing head assembly has a plurality of idle rollers, a vacuum member adapted to hold the leading end of the fresh web and a cutting and clamping mechanism moveably mounted to the frame of the splicing head assembly. The cutting and clamping mechanism is adapted to be pivoted by a pneumatic cylinder to clamp the trailing web end from the expiring roll to the fresh web under tension and sever the web from the expiring roll between the dispensing roll and the location where the webs are clamped. A spring biased web acceleration arm mounted to the supply frame engages the web of the fresh roll to provide a reservoir of slackened web from the fresh roll allowing the splice joint of the two webs to be pulled away with gradually increasing force thus preventing sudden acceleration force on the splice.
REFERENCES:
patent: 3305189 (1967-02-01), Butler, Jr. et al.
patent: 3963191 (1976-06-01), Goodley
patent: 3995791 (1976-12-01), Schoppee
patent: 4131501 (1978-12-01), Bottcher et al.
patent: 4173314 (1979-11-01), Curran et al.
patent: 4190483 (1980-02-01), Ryan et al.
patent: 4292115 (1981-09-01), Jones et al.
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