SU971768A1 - Apparatus for winding yarn onto bobbin - Google Patents

Description

(54) UNIT FOR WRINKING THREAD

one

The invention relates to automatic devices for winding threadlike materials and can be used in the textile industry and the production of synthetic and mineral fibers.

A device for winding a yarn on a bobbin, comprising an electric motor, electrically connected to the output of the control unit and kinematically with a bobbin holder mounted on the shaft, and a stitching roller 1 mounted on a carriage is known.

The disadvantages of the known device are the limited range of winding operating speeds and the need to customize the device, which reduces the quality of the winding.

The purpose of the invention is to improve the quality of winding.

The goal is achieved in that the device for winding a thread on a bobbin, containing an electric motor electrically connected to the output of the control unit and kinematically - with a bobbin holder mounted on the shaft, and a stitching roller mounted on the carriage, has an induction sensor, a former, a pulse generator, a comparator and measuring disk, fixed to the cob

lenny on the same shaft with the bobbin holder, the induction sensor being mounted on the carriage of the stitching roller, and its output through a series-connected shaper and comparator is connected to

5 to the input of the control unit, with the additional output (|) of the Ormirovatel being connected by means of a pulse generator to the master input of the comparator.

FIG. I depicted the appearance and

Q block diagram of the device; in fig. 2 - oscillograms of voltages at the outputs of individual blocks; in fig. 3- design of the measuring disk.

The device comprises a bobbin holder 1, 15, a stitch roller 2, an induction sensor 3, a carriage roller 4, a measuring disk 5, an electric motor 6, a driver 7, a pulse generator 8, a comparator 9, an angle block 10.

The induction sensor 3 is mounted on the carriage 4 of the stitching roller 2 and can move relative to the axis of rotation of the bobbin holder 1 in the plane of rotation of the measuring disk 5 mounted on the same shaft with the bobbin holder 1.

The measuring disk 5 is made of magnetic steel with a diameter proportional to the diameter of the wound bobbin, and has diametrically spaced grooves 11 with a width b (Fig. 3).

The induction sensor 3 is installed in the plane of the measuring disk 5 at a distance of 0.3-0.6 mm from it and moves with an increase in the diameter of the reel when it is wound together with the carriage 4 and the stitching roller 2.

The device works as follows.

During the winding process, positive and negative pulses appear on the output of the induction sensor 3 by passing the grooves 11 of the rotating measuring disk 5 in front of it (Fig. 2a), corresponding to the beginning and end of the groove 11. These pulses are fed to the driver 7, the outputs of which form a rectangular signal The duration of which TI is determined by the peripheral speed of the winding layer at the current value of the winding diameter (Fig. 26), since the induction sensor 3 moves with the press roller as the winding reel is wound. From the additional output of the former 7, the leading edge of the rectangular signal is fed to the generator 8 of pulses by a trigger signal. The pulse generator 8 generates a rectangular signal of a given duration 2 (Fig. 2b). Thus, two rectangular pulses arrive at the inputs of the comparator 9: Tj - from the imaging unit 7, which carries information actually about the diameter of the reel, and Tz - c of the generator 8 pulses, which is the task.

The comparator 9 processes the difference signal (Fig. 2d), which is fed to the input of the control unit, as a result of which the speed of the electric motor 6 is changed to such a value that TI 1.

Using the proposed device allows improving the quality of winding, which ensures the integrity of the reels during transportation and further technological operations, increases productivity of labor and equipment by reducing the breakage of the thread.

Claims (1)

Invention Formula A device for winding a thread on a reel containing an electric motor electrically connected with the output of the control unit and kinematically with a shaft mounted on the bobbin holder and a stitching roller mounted on the carriage, characterized in that in order to increase the quality of the winding it has an induction sensor, a former pulse generator, a comparator and a measuring disc mounted on the same shaft with the bobbin holder, and The induction sensor is mounted on the stitching roller carriage, and its output is connected to the control unit through a sequentially connected driver and comparator, while the additional output of the driver is connected by means of a pulse generator to the driver input of the comparator. Sources of information taken into account in the examination 1. Patent of Germany No. 1142944, cl. B 65 N 59/38, 1963.