US 4,283,020 A · Electronic control system for reciprocating mechanism

Abstract

An electronic control system (9) controls the movement of a distributer (19) as the distributor guides strand (11) alternately onto reels (12 and 13). Digital signals are generated representing the instantaneous position of the distributor (19) and end-points of travel of the distributor. A controller (38) generates a signal when a coincidence of the instantaneous position of the distributor (19) and alternate ones of the end-points of travel of the distributor occur. The signal is used to reverse the direction of travel of the distributor (19) thus resulting in a uniform distribution of the strand (11) onto the reels (12 and 13). As each of the reels (12 and 13) become full, a signal is generated which causes the distributor (19) to proceed at a high rate of speed toward the back flange of the reel regardless of the direction of travel at that time. This facilitates the cutover of the strand (11) from a full reel to an empty reel.

Claims11

Dependent claims

A system for controlling the movement of a reciprocating mechanism between spaced end-points along a path of travel of the mechanism, which comprises:

means for driving the reciprocating mechanism;
means responsive to movement of the driving means for developing a voltage signal of varying instantaneous levels representative of instantaneous positions of the reciprocating mechanism along the path of travel thereof;
means for establishing a pair of voltage signals at selected levels representative of respective end-points of travel of the reciprocating mechanism;
means responsive to the coincidence of the instantaneous voltage signal and one of the pair of the end-point signals for developing a reversal signal;
and
means for applying the reversal signal to the driving means to reverse the direction of travel of the reciprocating mechanism.

3 more elements

A system for controlling the movement of a reciprocating mechanism between spaced end-points along a path of travel of the mechanism whereby the mechanism guides material onto a take-up unit comprising:

means for driving the reciprocating mechanism;
first controlling means for controlling the driving means to move the reciprocating mechanism between spaced end-points of travel at a given speed;
means responsive to the take up of a preselected amount of material onto the unit for developing a preselected-amount voltage signal indicative of the take up of the preselected amount;
and
second controlling means responsive to the developed preselected-amount voltage signal for controlling the drive means to move the reciprocating mechanism toward a selected one of the end-points of travel at a speed higher than the given speed.

2 more elements

A system for controlling the movement of a reciprocating mechanism between spaced end-points along a path of travel of the mechanism, which comprises:

means for driving the reciprocating mechanism;
a position-feedback potentiometer having a wiper portion movable with the driving means for developing an analog voltage signal of varying instantaneous levels representative of the instantaneous positions of the reciprocating mechanism along the path of travel thereof;
a pair of end-point potentiometers for establishing analog voltage signals representative of respective ones of the spaced end-points of travel of the reciprocating mechanism;
means for converting to digital voltage signals, the analog voltage signals developed through the position-feedback potentiometer and the pair of end-point potentiometers;
means responsive to the coincidence of the digital voltage signal associated with the instantaneous position of the reciprocating mechanism and either of the digital voltage signals associated with the respective end-points of travel of the mechanism to develop a mechanism-reversal signal;
and
means for applying the mechanism-reversal signal to the driving means to reverse the direction of travel of the reciprocating mechanism.

4 more elements

Dependencies are inferred from the claim text.

Electronic control system for reciprocating mechanism

Life of this patent

Electronic control system for reciprocating mechanism

Life of this patent

Abstract

Claims11