Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-07-06
1992-06-23
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 45, 242 7551, 242105, B65H 23185, B65H 5938
Patent
active
051236079
ABSTRACT:
The invention relates to a variable speed, motorized wire dispenser which automatically dispenses wire to a wire using machine under variable wire feed rate conditions. The dispenser includes a support means for a coil of wire, an electric motor to rotate the coil of wire, a motor controller for controlling the operation of the motor, a wire accumulation device having a wire engaging guide mounted at one end of a movable arm and biased to increase the accumulation loop between predetermined limits, and a control potentiometer responsive to the position of the guide to generate a control signal which is transmitted to the controller. The potentiometer is rotated by a drive belt wrapped around a drive sprocket attached to the output shaft of the potentiometer. The belt has one end attached to the frame of the dispenser through a resilient tension spring and has another end attached to the movable arm. A stop member in the form of an adjustable clip mounted on the belt stops movement of the belt over the potentiometer to limit rotation of the potentiometer to a predetermined maximum amount indicative of the highest wire feed rate desired.
REFERENCES:
patent: 4555071 (1985-11-01), Nordlof
patent: 4582271 (1986-04-01), Takahashi
patent: 4899945 (1990-02-01), Jones
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