SU1608411A1 - Apparatus for measuring loop length in warp-knitting machine - Google Patents

Abstract

The invention relates to automatic devices for measuring the feed of lengthy material and can be used on the basis of knitting production machines. The aim of the invention is to increase reliability. The device contains a movable tag freely placed on the guide with the possibility of interaction with the surface of the web of the warp threads and reciprocating movement in the direction of movement of the warp threads. The loop length is determined by the signals from the sensors for the start and end positions of the mark, as well as the speed sensor of the main shaft of the machine, in the loop length calculation unit. At the end of the measurement cycle, an electromagnet is triggered and a two-arm lever interacting with its cortex rejects the mark along the guide to its initial position. 1 il.

Description

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The exemption relates to automatic devices for measuring the delivery of lengthy material and can be used on the basis of hall production machines, the invention — increasing the reliability — shows the principle of the proposed device. The device contains a movable tag with a hole for guided Yushi2, double grip; 1g 3, mounted on 4 and connected to the korek 5 electr / 1 cartridge 6, sensors 7 and 8 of the final and initial position of the mark 1, block 9 in length loops, and also the sensor of 10 turns of the main shaft of the car, on threads of a basis come 11.

The sensors 7 and 8, respectively, of the end and initial position of the mark 1, as well as the sensor 10 of the rotational speed of the main shaft of the machine are connected to the corresponding inputs of the block 9, the output of which is connected with the coil of the electromagnet 6, the mark 1 is placed on the guide 2 with the possibility of contact with the threads 11 of the base and the reciprocating movement along the guide 2 in the zone of the sensors 7 and 8 of the final and initial position of the mark 1, as well as interaction with the double-arm lever 3,

The device works as follows.

When looping and movement of the threads 11 of the base, on which lies 1, the latter alternately passes by the sensors 8 and 7 of the initial and final position of the mark 1. As a result, in block 9

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Two consecutive pulses are received, over the time interval of which and the signals from the sensor 10 revolutions of the main shaft of the machine, the loop length is determined.

After mark 1 of the end position 7 passes from the output of block 9, a signal is sent to the coils of the electromagnet 6, which causes it to trigger, moving the core 5 and, accordingly, the two shoulders lever 3, which with its upper arm hits the mark 1 and throws it along the guide 2 initial position. At the same time, the signal from sensor 8 of the initial position of label 1 starts the next loop length measurement cycle.

Claims (1)

The invention The device for measuring the length of the loop on the basis of a filling machine, containing a movable tag, freely placed on the surface of the canvas base threads, sensors 0 five 0 the speed of the main shaft, the starting and ending positions of the mark, connected to the corresponding inputs of the loop length calculation block, characterized in that. that, in order to increase reliability, it is equipped with an electromagnet with a two-arm lever rigidly mounted behind the sensor of the end position of the mark in the direction of movement of the base, a guide placed above the threads of the base parallel to them, and a hole is made in the body of the mark the electromagnet is connected to the output of the loop length calculation unit, the two-arm lever is kinematically connected with the electromagnet core, and the label is placed on the guide with the possibility of contact with the warp threads and reciprocating The movement along the non-location of the sensors for the initial and final positions of the mark, as well as interaction with the two-arm lever. ;;