Apparatus and method for roll changing on a continuous winder

Details Apparatus and method for roll changing on a continuous winder Apparatus and method for roll changing on a continuous winder

1989-08-21

1991-05-14

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 566, 242 562, B65H 1920, B65H 3504

Patent

active

050149245

ABSTRACT:
In a winder for continuously winding a web material into rolls on successive cores, roll changing apparatus for cutting and transferring the web material from a full roll to an empty core includes two sets of water jet nozzles mounted for reciprocating movement in opposite directions lengthwise of the core to which the web is to be transferred. During the momentary interval of roll changing, the oppositely moving jets cut the web along a generally saw tooth pattern, and at the same time, the water which cuts the web also wets its cut leading end and the adjacent surface of the core, thereby causing adhesion of the end of the web to the core for a sufficient interval for this end of the web to be covered by the next wrap on the core.

REFERENCES:
patent: 3891157 (1975-06-01), Justus
patent: 4007652 (1977-02-01), Shinomiya et al.
patent: 4182170 (1980-01-01), Grupp et al.
patent: 4266112 (1981-05-01), Niedermeyer
patent: 4435902 (1984-03-01), Mercer et al.
patent: 4552316 (1985-11-01), Dropczynski et al.
patent: 4695004 (1987-09-01), Grossmann et al.
Papermaking--Automating Reel, Winder Operations Cuts Work Load, Raises Production--Pulp & Paper, Apr. 1979, pp. 104-109.

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