SU1548296A1 - Device for monitoring state of warp yarn - Google Patents

Abstract

This invention relates to means of automatically controlling the breakage or sagging of warp threads on textile weaving machines. The aim of the invention is to improve the detection accuracy of the broken thread. The lamella basic observer contains a multi-zone primary measuring transducer having lamella position sensors when the warp thread is broken and when the warp thread is sagging. If there is a signal about the sagging of the warp thread, the alarm unit and the electromagnet control unit are located under the lamellas and activated according to the unit for a certain time duration, which leads to the attraction of the lamellae and additional tension of the warp threads. If the thread just sagged, then the machine does not stop. If the warp of the warp is broken, the lamella enters the zone of the lamella position sensor when the thread breaks, which causes the machine to stop. 1 il.

Description

This invention relates to means for automatically controlling the breaking or sticking of warp threads on textile weaving machines.

The aim of the invention is to improve the detection accuracy of the broken thread.

The drawing shows a diagram of the device.

The device contains lamellae 1, a multi-zone primary measuring transducer 2, an indication unit 3, a machine stop unit 4, an electromagnet 5, an electromagnet control unit 6, a setting device 7 for switching on the electromagnet 5, warp threads 8,

 lamellar basic observer 9, sensor 10 for positioning lamella 1 when slackening thread 8 of the warp and sensor 11 for positioning lamella 1 for breaking thread 8 for warp.

The output of the sensor 11 of the position of the lamella 1 when the thread 8 of the warp 8 is connected is connected through the machine stop unit 4 with the first input of the display unit 3.

The output of the sensor 10 of the position of the lamella 1 when the base yarn 8 is slack is connected to the second input of the display unit 3 and the first input of the electromagnet 5 control unit 5, the second input of which is connected to the output of the setting unit 7 of the turn-on time of the electrodiode 4 00 ГС

about a

the magnet 5, and the output of the block 6 is connected to the windings of the electromagnet 5. Sensors 10 and 11 of the lamella position

According to the sagging and breaking of the thread 8 of the warp, which is included in the myo-zone primary measuring transducer 2, it can be made with optical, capacitive, etc.

The device works as follows.

When working loom lamella

I1 hanging on the thread x 8 of the base, oscillating, but rife fall into the control zone of the sensor 10 of the lamella position 1 when the base thread 8 is slack.

If the thread 8 of the base 1 hangs, the lamella 1 hangs on it and enters the zone of the sensor 10 of the position of the lamella 1 as the base thread 8 sags, which leads to the formation of a signal at its output that goes to the second input of the display unit 3, as a result what comes10

15

20

If the warp yarn 8 is broken, the lamella 1 enters the sensor zone 11 of the lamella position 1 when the thread breaks and its output signal triggers the machine 4 to stop, as well as the display unit 3, which is signaled by the warp yarn 8.

Claims (1)

Invention Formula A device for monitoring the state of the warp threads predominantly on weaving machines, containing a lamella core monitor with a multizone primary measuring transducer having a lamella position sensor when the thread is broken, the output of which through the machine stop unit is connected to the first input of the display unit, and an electromagnet characterized by that, in order to increase the detection accuracy of a broken thread, a signal was sent to it about the presence of a sagging thread 8 25 of the electromagnet control unit, five 0 If the warp yarn 8 is broken, the lamella 1 enters the sensor zone 11 of the lamella position 1 when the thread breaks and its output signal triggers the machine 4 to stop, as well as the display unit 3, which is signaled by the warp yarn 8. Invention Formula A device for monitoring the state of the warp threads predominantly on weaving machines, containing a lamella core monitor with a multizone primary measuring transducer having a lamella position sensor when the thread is broken, the output of which through the machine stop unit is connected to the first input of the display unit, and an electromagnet characterized by that, in order to improve the detection accuracy of the broken thread, an electromagnet control unit was inserted into it, 3 Ornovy. At the same time, the presence of also a signal about the sagging of the thread 8 of the base at the first input of the block 6 triggers the electromagnet 5 to operate for a time determined by the setting device 7 of the electromagnet 5 turn-on time, wo causes the last lamella 1 and tension of the base threads 8. „ If the thread 8 of the warp only sags, 3 is not broken, the lamella 1 does not enter the zone of the sensor 11 of the position of the lamella 1 rtpn breakage of the thread 8 of the warp. five the unit for switching on the electromagnet, and the multi-zone primary transmitter has an additional lamella position sensor when the thread sags, the output of which is connected to the Second input of the display unit and the first input of the electromagnet control unit, and the output of the electromagnet activation time master is connected to the second input of the electromagnet control unit, the output of which is connected to the winding of the electromagnet.