Apparatus for controlling contact pressure of a bobbin on a bear

Details Apparatus for controlling contact pressure of a bobbin on a bear Apparatus for controlling contact pressure of a bobbin on a bear

1991-06-06

1992-11-17

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 18B, B65H 5452

Patent

active

051636310

ABSTRACT:
In a method and apparatus for controlling a contact pressure which a bobbin being wound with a thread exerts on a roller, the contact pressure is controlled by an adjusting device. The roller is mounted on a balance beam. The divergence of the balance beam from a desired position thereof is determined by a sensor and is converted in a controller into a correction movement of the adjusting device. The adjusting device includes a worn gear with a spindle nut and a spindle driven by a motor which is controlled by the controller. By means of the controller constructed as a control loop, it is possible to very precisely maintain the bearing pressure throughout the winding process independently of the specific weight of the bobbin.

REFERENCES:
patent: 3617009 (1971-11-01), Lawson et al.
patent: 3934830 (1976-01-01), Grau
patent: 4106710 (1978-08-01), Schippers et al.
patent: 4538772 (1985-09-01), Davies

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