Strip tension control apparatus

Details Strip tension control apparatus Strip tension control apparatus

1994-10-11

1995-12-05

Stodola, Daniel P.

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

226118, 2424139, 2424141, 318 6, B23Q 1600, G11B 1556, B65H 5938

Patent

active

054721270

ABSTRACT:
The tension of a strip can be controlled with high responsiveness and high accuracy despite its drastic external variation by threading the strip (1) between a transportation roll (2) and a movable transportation roll (10) and moving the movable transportation roll (10). The movable transportation roll (10) is mounted on one end of an arm (11), which is mounted for a swing motion around a supporting shaft (12), a torque around the supporting shaft (12) is generated in the arm (11) by an arm driving motor (14) connected directly to the supporting shaft (12), thereby applying a tension to the strip (1). The angle of swing motion of the arm (11) is detected by an arm angle sensor (16), and the tension of the strip (1) is detected by a tension sensor (15). The torque to be generated in the arm (11) is corrected in accordance with the detected angle and tension, whereby the strip tension is controlled for a target tension.

REFERENCES:
patent: 2325381 (1943-07-01), Edwards et al.
patent: 4004510 (1977-01-01), Roch
patent: 4033492 (1977-07-01), Imai
patent: 4280081 (1981-07-01), Dinger et al.
patent: 4307591 (1981-12-01), Peterson
patent: 4359178 (1982-11-01), Hayashi et al.
patent: 5083693 (1992-01-01), Pohl
patent: 5119982 (1992-06-01), Hutzenlaub
patent: 5125592 (1992-06-01), Sato

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