Tension control including motor speed regulation system

Claim 2

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising: means for providing successive diameter signals which are a function of the instantaneous coil diameter D, the coil having a finite diameter Do when said reel motor is at the weakest field flux, said diameter signal means comprising divider means having dividend and divisor inputs and a quotient output, said inputs being connected to receive a line speed signal and a reel motor rotational speed signal respectively, the quotient output being a function of the instantaneous diameter D; means coupled to said diameter signal means, to receive said diameter signals and deliver control signals as a function of the instantaneous diameter when D < OR = Do; and means for regulating the speed of said line speed pace motor connected to receive dual inputs, the one being a reference speed input signal, the other being said control signals, and for delivering a constant speed signal to said line speed pace motor when D> Do, and progressively decreasing speed signals to said line speed pace motor for all magnitude of D < OR = Do.

Claim 3

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising: means for providing successive diameter signals which are a function of the instantaneous coil diameter D, the coil having a Finite diameter Do when said reel motor is at the weakest field flux; means coupled to said diameter signal means, to receive said diameter signals and deliver control signals when D < or = Do, said control signal means comprising a potentiometer and a diode, said diameter signals being applied across said potentiometer, means for regulating the speed of said line speed pace motor connected to receive dual inputs, said potentiometer having a slider connected to one electrode of said diode, the other electrode being connected to one of said dual inputs to said regulating speed means, the slider being adjusted so that the diode is forward biased when D < or = Do, the other dual input being a reference speed input signal, said regulating speed means delivering a constant speed signal to said line speed pace motor when D>Do, and progressively decreasing speed signals to said line speed pace motor for all magnitudes of D < or = Do.

Claim 4

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising: means for providing successive diameter signals which are a function of the instantaneous coil diameter D, the coil having a Finite diameter Do when said reel motor is at the weakest field flux; means coupled to said diameter signal means, to receive said diameter signals and deliver control signals when D < or = Do, said control signal means comprising a potentiometer and a diode, said diameter signals being applied across said potentiometer, means for regulating the speed of said line speed pace motor connected to receive dual inputs, said potentiometer having a slider connected to one electrode of said diode, the other electrode being connected to one of said dual inputs to said regulating speed means, the slider being adjusted so that the diode is forward biased when D < or = Do, the other dual input being a reference speed input signal, said regulating speed means delivering a constant speed signal to said line speed pace motor when D>Do, and progressively decreasing speed signals to said line speed pace motor for all magnitudes of D < or = Do.

Claim 5

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising: means for providing successive diameter signals which are a function of the instantaneous coil diameter D, the coil having a finite diameter Do when said reel motor is at the weakest field flux; means coupled to said diameter signal means, to receive said diameter signals and deliver control signals as a function of the instantaneous diameter when D < or = Do, and means for regulating the speed of said line speed pace motor comprising an operational amplifier having one terminal to receive a reference input signal and a second terminal connected to said control signal means, said regulating speed means delivering a constant speed signal to said line speed pace motor when D>Do, and progressively decreasing speed signals to said line speed pace for all magnitudes of D < or = Do.

Claim 6

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising: means for providing successive diameter signals which are a function of the instantaneous coil diameter D, the coil having a finite diameter Do when said reel motor is at the weakest field flux; means coupled to said diameter signal means, to receive said diameter signals and deliver control signals as a function of the instantaneous diameter when D < or = Do, and means for regulating the speed of said line speed pace motor comprising an operational amplifier having one terminal to receive a reference input signal and a second terminal connected to said control signal means, said regulating speed means delivering a constant speed signal to said line speed pace motor when D>Do, and progressively decreasing speed signals to said line speed pace for all magnitudes of D < or = Do.

Claim 7

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising a. means for providing successive diameter signals D, the coil having a finite diameter Do when said reel motor is at the weakest field flux, said diameter signal means comprising divider means having dividend and divisor inputs and a quotient output, said inputs being connected to receive a line speed signal and a reel motor rotational speed signal respectively, the quotient output being a function of the instantaneous diameter D; b. means coupled to said diameter signal means, to receive said diameter signals and deliver control signals as a function of the instantaneous diameter when D < or = Do, said control signal means comprising a potentiometer and a diode, said diameter signal being applied across said potentiometer, said potentiometer having a slider connected to one electrode of said diode, the slider being adjusted so that the diode is forward biased when D < or = Do; and c. means for regulating the speed of said line speed pace motor connected to receive dual inputs, the one being a reference command speed input signal, the other being connected to the other electrode of said diode to receive said control signals, said speed regulating means delivering a constant speed signal to said line speed pace motor when D>Do, and a progressively decreasing speed signal to said line speed pace motor for all magnitude of D < or = Do.

Claim 8

A speed regulation system for a line speed pace motor for actuating strip material being wound or unwound in coil form by a reel motor comprising a. means for providing successive diameter signals D, the coil having a finite diameter Do when said reel motor is at the weakest field flux, said diameter signal means comprising divider means having dividend and divisor inputs and a quotient output, said inputs being connected to receive a line speed signal and a reel motor rotational speed signal respectively, the quotient output being a function of the instantaneous diameter D; b. means coupled to said diameter signal means, to receive said diameter signals and deliver control signals as a function of the instantaneous diameter when D < or = Do, said control signal means comprising a potentiometer and a diode, said diameter signal being applied across said potentiometer, said potentiometer having a slider connected to one electrode of said diode, the slider being adjusted so that the diode is forward biased when D < or = Do; and c. means for regulating the speed of said line speed pace motor connected to receive dual inputs, the one being a reference command speed input signal, the other being connected to the other electrode of said diode to receive said control signals, said speed regulating means delivering a constant speed signal to said line speed pace motor when D>Do, and a progressively decreasing speed signal to said line speed pace motor for all magnitude of D < or = Do.