Braking force control method and device for strip-shaped...

Details Braking force control method and device for strip-shaped... Braking force control method and device for strip-shaped...

2005-04-28

2009-06-02

Kim, Sang (Department: 3654)

Winding, tensioning, or guiding

Tension control or brake

Supply controlled

C242S421400, C242S421700

Reexamination Certificate

active

07540447

ABSTRACT:
In a feeding device comprising turret arms having spindle shafts for supporting a web roll, an air brake for applying a braking force in a rotating direction to the spindle shafts, and an accelerating motor for applying a drive force in the rotating direction to the spindle shafts and a braking force in the rotating direction to the spindle shafts, a braking force control device has a tension control device which exercises control such that if a braking force required for the spindle shafts is lower than a constant value, only the braking force from the accelerating motor is supplied to the spindle shafts, and that if the braking force required for the spindle shafts is higher than the constant value, the braking force from the accelerating motor is supplied to the spindle shafts, and the braking force of the air brake is supplied to the spindle shafts.

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