Apparatus for continuously unwinding a plurality of rolled-up ta

Details Apparatus for continuously unwinding a plurality of rolled-up ta Apparatus for continuously unwinding a plurality of rolled-up ta

1991-08-23

1993-12-28

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

156157, 156502, 242 584, 242 585, B65N 1918, B65N 23188

Patent

active

052732282

ABSTRACT:
An apparatus for continuously unwinding a plurality of rolled-up tapes made of fusible material wherein the tapes are successively unwound, one at a time, from at least two rewinders for supporting the tape thereon, with the tail end of the preceding tape joined to the leading end of the following tape. The apparatus comprises a guide roller assembly for transporting the preceding tape via a joining station, a tape end sensor for detecting the tail end of the preceding tape, and a joining device for holding the following tape at its leading end as folded over and opposed to the preceding tape, thermally bonding the tail end of the preceding tape to the folded-over leading end of the following tape in response to a detection signal from the tape end sensor, and cutting off a portion of the resulting joint with only a required length thereof left uncut.

REFERENCES:
patent: 3645463 (1972-02-01), Helm
patent: 3841944 (1974-10-01), Harris
patent: 4157934 (1979-06-01), Ryan et al.
patent: 4190483 (1980-02-01), Ryan et al.
patent: 4222533 (1980-09-01), Pongracz
patent: 4481053 (1984-11-01), Tokuno et al.
patent: 4848691 (1989-07-01), Muto et al.

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