Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1989-01-25
1990-05-29
Wityshyn, Michael
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
156504, 242 581, B65H 1914
Patent
active
049292978
ABSTRACT:
The known splicing system for paying out a rolled sheet and continuously feeding a sheet to a downstream machine of the type that the system includes a sheet splicer for stopping a running sheet and splicing a tip end of another new sheet therewith, a tension roll in a dancer roll section for forming a sheet pool downstream of that sheet splicer, which tension roll is provided for the purpose of feeding the running sheet without changing the speed of the downstream machine, an accelerating roll for stopping a running old sheet and accelerating the new sheet upstream of the dancer roll section and downstream of the sheet splicer, and a guide roll provided downstream of the dancer roll section and upstream of the downstream machine for feeding the sheet coming from the dancer roll section to the downstream machine in the prior art, is improved. The improvements reside in that when a rotational speed of the accelerating roll is represented by -N.sub.2, a rotational speed of the guide roll is represented by +N.sub.3, and a rotational speed of a drive shaft for moving the tension roll in the dancer roll section is represented by N.sub.1, the drive shaft is driven so as to fulfil the relation of ##EQU1## and thereby variation of the tension in the sheet applied to the tension roll accompanying the variation of the rotational speed of the accelerating roll can be made zero.
REFERENCES:
patent: 3713600 (1973-01-01), Murray et al.
patent: 3971524 (1976-07-01), Nudinger et al.
patent: 4009814 (1977-03-01), Singh
patent: 4100012 (1978-07-01), Meihofer et al.
Mitsubishi Jukogyo Kabushiki Kaisha
Wityshyn Michael
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