SU590680A2 - Device for measuring single thread linear velocity pulsations - Google Patents

Description

one

The invention relates to the field of motion parameters measurement and is intended to measure the pulsation rate of a single thread in the textile industry.

According to the main author. St. No. 537695, a device for measuring single-thread linear velocity pulsations, consisting of an average velocity meter, a measuring unit, a pulsation estimator, a pulse width meter, and a speed deviation sign detecting unit. Such a device does not allow to choose from all the obtained values of the pulsations of the linear velocity of the thread, those values that would correspond to the passage of the thread at the point of interest (controlled) when laying the thread on the package.

The purpose of the invention is to measure the linear velocity of a yarn at any point of interest for its packing.

This is achieved by introducing a thread position indicator, a multivibrator, and two keys into the proposed device, the output of the annunciator being connected via the multivibrator to the controller, their inputs, which are included each between the pulse sensor and the mean velocity measurement driver.

The drawing shows the structural scheme of the proposed device.

Sensor 1 is the first one in the direction of the movement of the thread through the key 2 and the driver of the 3 pulses connected to one of the inputs of the measurement unit 4. Sensor 5

through the switch 6 and the pulse shaper 7 is connected to the second input of the block; and measurement 4 measures the average speed. The indicator of the position of the thread 8 through the multivibrator 9 is connected to the keys 2 and 6, the measuring unit 4 measuring the average speed meter is connected through the pulsation estimation unit 10 to the pulse duration meter 11 and the bias deflection unit 12, which is connected to the meter 11 via a different input

pulse duration.

The thread 13, which has natural thickness irregularities, moves longitudinally to the thread guide 14, due to the rotation of the thread guide 15, also receives transverse displacement when laying it onto the package 16.

The device works as follows.

When transverse movement of the thread 13 is received from the needle folder 15, the thread position indicator 8, which can be installed at any point of interest but the line of transverse movement of the thread, detects the passage of the thread over it and starts the waiting multivibrator 9, which gives the enabling pulse of the required duration to the keys 2 and 6. Keys 2 and 6 during the time of generation of the enabling emulsion pass signals from sensors 1 and 5 to the inputs of pulse shapers 3 and 7, where, after selecting the fronts corresponding to the unevenness of the filament, upayut on block inputs 4 meter measuring the average velocity. Simultaneously with the measurement of the average velocity of the thread in the pulsation estimation unit 10, pulses are formed corresponding to the magnitude of the pulsation of the linear velocity of the thread. These pulses are measured by an AND pulse width meter. At that, the deviation sign determining unit 12 determines the sign of the deviation of the thread speed from its average value, i.e., this device by analyzing the measurement results at several points of interest (controlled), or

the need for one, allows one to determine the law of winding the yarn and the packing depending on the type of the thread handler and other factors of interest.

Claims (1)

Invention Formula A device for measuring the pulsation of the linear velocity of a single thread according to the ed. St. AIO 537695, characterized in that, in order to measure the pulsations of the linear velocity of the thread at any point of interest for its packing, the thread position indicator, multivibrator and two keys, with the output of the detector connected via a multivibrator with control inputs of the keys, which are each connected between the pulse sensor and the average speed measurement driver. p - l