System for regulating the speed of an axially driven winder drive

Abstract

Abstract A SYSTEM FOR REGULATING THE SPEED OF AN AXIALLY DRIVEN WINDER FOR TEXTILE AND OTHER THREAD OR WEB MATERIAL, WHICH OPERATES TO MAINTAIN CONSTANT MECHANICAL TENSION IN THE MATERIAL BEING WOUND. THE SYSTEM COMPRISES A WINDER MOTOR OF VARIABLE ROTARY SPEED AND MOTOR CONTROL MEANS FOR VARYING THE ROTARY SPEED. A DANCER ROLLER ENGAGEABLE WITH THE MATERIAL BEING WOUND, DEFLECTS FROM A GIVEN POSITION WHEN THE PULLING TENSION OF THE MATERIAL, AS IT IS BEING WOUND, DEPARTS FROM THE DESIRED VALUE. EACH DEFLECTION OF THE DANCER ROLLER CAUSES THE ISSUANCE OF A VOLTAGE SIGNAL WHOSE AMPLITUDE AND POLARITY DEPEND UPON MAGNITUDE AND DIRECTION OF THE DANCER-ROLLER DEFLECTION. AN INTEGRATOR AND A DIFFERENTIATOR ARE CONNECTED IN PARALLEL TO THE VOLTAGE SIGNAL AND CONJOINTLY FURNISH A DATUM INPUT TO A SPEED REGULATOR WHOSE PILOT INPUT DEPENDS UPON THE ROTARY WINDER SPEED AND WHOSE OUTPUT IS CONNECTED TO THE MOTOR CONTROL MEANS FOR VARYING THE ROTARY SPEED TO MAINTAIN THE PULLING TENSION IN THE MATERIAL AT A CONSTANT VALUE. AN AMPLITUDE LIMITER IS INTERPOSED BETWEEN THE INTEGRATOR AND THE SIGNAL VOLTAGE MEANS. A CURRENT REGULATOR SUBORDINATE TO THE SPEED REGULATOR IS CONNECTED BETWEEN THE OUTPUT OF THE SPEED REGULATOR AND THE MOTOR CONTROL MEANS. THE CURRENT CONTROLLER DERIVES ITS PILOT MAGNITUDE FROM THE CURRENT IN THE MOTOR ENERGIZING CIRCUIT, THE DATUM INPUT OF THE CURRENT REGULATOR BEING DELIVERED BY THE OUTPUT OF THE SPEED REGULATOR.

Inventors

• 👤 H Poppinger
• 👤 M Liska

Bibliographic Details