Control system of thread winding machine

Abstract

The invention relates to a thread winding machine used for producing prestressed concrete tubes and provides a control system of a thread winding machine, which not only can wind threads during feeding, but also can wind the threads during returning. The control system comprises a controller, a cement tube rotating drive device, a winding displacement device, winding displacement device running guide rails, a force measuring device and a stress device generating a set pull force on the threads, wherein the cement tube rotating drive device, the winding displacement device, the force measuring device and the stress device are connected with the controller; the winding displacement device comprises a thread-guide trolley and a driving motor for driving the thread-guiding trolley to reciprocate at the constant speed relative to the cement tube; the cement tube rotating drive device drives the cement tube to operate according to the set rotating speed to enable the threads to be wound on the cement tube according to the set thread pitch; and the controller is internally provided with an instruction stress device for changing the stress and a regulating circuit for ensuring that the stress of the thread-guiding trolley acted on the threads in the returning and feeding process is basically consistent.

Description

technical field

[0001] The invention relates to a wire winding machine used in the production of prestressed concrete pipes, in particular to a control system of a horizontal or vertical wire winding machine capable of winding wire in both feed and return directions. Background technique

[0002] In order to make the produced prestressed concrete pipe (three-stage, PCCP) able to withstand certain external pressure and internal pressure, it is necessary to wind the prestressed steel wire at a certain distance on the outer wall of the concrete pipe core. The existing technology lacks the feedback of the measurement data of the force measuring device. Since there is no digital regulator, the measured data can only be used for recording. Therefore, the lack of adjustment for stress fluctuations results in large stress fluctuations. Because the existing wire winding machine has no device to adjust the given tension according to the direction of the wire, it can only wind the stee...

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