CN101324004B

CN101324004B - Piezoelectric type yarn break preventing apparatus of air-jet loom

Info

Publication number: CN101324004B
Application number: CN2007100524774A
Authority: CN
Inventors: 邱卫兵; 邓红卫; 孟祥勇
Original assignee: Jihua 3542 Textile Co Ltd
Current assignee: Jihua 3542 Textile Co Ltd
Priority date: 2007-06-13
Filing date: 2007-06-13
Publication date: 2011-05-18
Anticipated expiration: 2027-06-13
Also published as: CN101324004A

Abstract

The invention discloses a piezoelectric monitoring device with single yarn prevention of a jet loom, and is characterized in that power sources of two broken yarn controllers are parallel connected with a 24V power source of the loom, relay switches (5 and 6) are parallel connected with shutdown signal ends C and D of the loom, three ends S, V and G of the broken yarn controllers A' and B' are respectively connected with S, V and G of detecting heads A and B, the broken yarn controllers A' and B' have the same circuit cording diagram, and the detecting heads A and B have the same working principle. The piezoelectric monitoring device with single yarn prevention of the jet loom adopts a piezoelectric-induction principle, yarns detect wefts through piezoelectric probes, each group consists of the single detecting head, and when the wefts are broken or yarn feeding is stopped, a detector acts and sends out the shutdown signal, and the loom stops production. The piezoelectric monitoring device with single yarn prevention of the jet loom has simple structure and convenient adjustment and use, improves the quality of high-count and high-density loom stare products, and substitutes for imported like products.

Description

Piezoelectric type yarn break preventing apparatus of air-jet loom

Technical field

The present invention relates to a kind of air-jet loom weaving supervising device, specifically, is a kind of air-jet loom piezoelectric type yarn break preventing supervising device, belongs to electrical equipment monitoring technique field.

Technical background

At present in textile technology, when weaving two spray fabric, the single thread fault has become the primary factor of the two spray of influence variety and quality along with increasing of yarn count is more and more, and common yarn break preventing apparatus does not satisfy the requirement of making high-count and high-density grey cloth product, though and the advanced import accessory of employing can solve the broken yarn problem, but its unreasonable structure causes the looped weft fault easily, and the use cost height, and the original paper volume is big, and difficulty is installed.

Summary of the invention

Purpose of the present invention is exactly the deficiency that solves the current background technology, and the anti-broken yarn supervising device that spins of a kind of air-jet loom piezoelectric type of design, utilize homemade components and parts to substitute the import accessory, the production domesticization of realization components and parts, solved common yarn break preventing apparatus and do not satisfied the problem that requires of making a high product, have simple in structure, result of use good, the characteristics at the bottom of the cost.

Technical scheme of the present invention is: a kind of air-jet loom piezoelectric type yarn break preventing supervising device, constitute by power supply, yarn break controller detection head, relay, signal picker, yarn break controller detection head testing circuit, light emitting diode, it is characterized in that: the output of 24V power supply and first resistance R 1 and IC 7812 is connected in series, and is connected in parallel on the yarn break controller holding wire V and the yarn break controller holding wire common port G of IC 7812 after first capacitor C 1, second capacitor C 2, LED 1 and 3 series connection of the 3rd resistance R; The first relay switch K1, LED 2, on the 4th resistance R 4 one termination ICs, 7812 outputs and the controller detection head V, the other end is serially connected in behind the colelctor electrode of triode V1, triode V2 respectively and is connected in IC 7812 and yarn break controller holding wire common port G; The yarn break controller line V of one termination IC 7812 of second resistance R 2, the other end is connected to the holding wire S end of yarn break controller and the base stage of triode V1, triode V2 respectively, and the emitter stage of triode V1, triode V2 is connected on the yarn break controller holding wire common port G; One termination IC 7812 of LED 2 is failed and is broken on end and the controller detection head V, and the other end and the 4th resistance R 4 are serially connected on the colelctor electrode of triode V2; Yarn break controller B ' is identical with connected mode with yarn break controller A ' device circuit theory.

A kind of air-jet loom piezoelectric type yarn break preventing supervising device of the present invention, two yarn break controller A ', yarn break controller B ' power supplys are connected on the 24V power supply of loom, first relay K, 1 normally opened contact 5, normally opened contact 6 are connected to holding wire (C, the D) end of loom, and holding wire S, the V of detection head A, detection head B, G are connected in parallel with yarn break controller A ', holding wire S, the V of yarn break controller B ', G respectively.

The invention has the beneficial effects as follows that yarn detects weft yarn by piezoelectric probe, form by single detection head for every group, disconnected when weft yarn, perhaps take place to stop for yarn, the signal that cut-offs is sent in the detector action, and loom stops to produce.It adopts the piezoelectricity principle of induction, and is easy to use, is convenient to regulate, simple in structure, has improved the quality of high-count and high-density grey cloth product.

Description of drawings:

The invention will be further described below in conjunction with accompanying drawing

Fig. 1 operation principle schematic diagram of the present invention

Fig. 2 prevents broken yarn supervising device electrical installation line schematic diagram

The detection hole of A detection head (TMFGL-LL) in the drawings 1,, 2, B detection head (TMFGL-LL) detects the hole, 3, red light emitting diodes (LED1, LED3), 4, green LED (LED2, LED4), 5, relay switch K1,6, relay switch K2, A, detection head (TMFGL-LL), B, detection head (TMFGL-LL), A ', B ' are: yarn break controller.

The specific embodiment

In circuit connection diagram of the present invention, the 24V power supply is connected with IC 7812 inputs with first resistance R 1; IC 7812 output V and common port G are connected in parallel after first capacitor C 1, second capacitor C 2, LED 1 and 3 series connection of the 3rd resistance R.Relay K 1, LED 2, resistance R 4 one termination ICs 7812 output V, the other end are serially connected in the common port G that is connected in IC 7812 behind the colelctor electrode of triode V1, triode V2 in parallel respectively.On one termination IC, the 7812 output V of second resistance R 2, the other end is connected to the S end of yarn break controller and the base stage of triode V1, triode V2 respectively, and the emitter stage of triode V1, triode V2 meets common port G.

In the embodiment of Fig. 2, detection hole 1 holding wire S, V, G and red light emitting diodes LED1, the green LED LED2 of detection head A (TMFGL-LL) are connected in parallel on the yarn break controller A '; B detection head (TMFGL-LL) detects hole 2 by holding wire S, V, G and red light emitting diodes LED3, green LED LED4 is connected in parallel on the yarn break controller B ', and the 24V dc source and the common ground end G of controller (A ', B ') is connected on the loom.Relay K 1 normally opened contact 5, normally opened contact 6 are connected to the signal C end that cut-offs, the signal D that the cut-offs end of loom.

The operation principle of circuit diagram of the present invention is: after connecting the 24V power supply, carry out step-down, filtering by IC 7812, first capacitor C 1,2 pairs of power supplys of second capacitor C, to yarn break controller A ' power supply, at this moment LED 1 luminous indication, the S end was output as low level when the detection head A on the yarn break controller A ' had yarn, and at this moment triode V1 ends, and relay K 1 is failure to actuate, triode V2 ends, and LED 2 does not work; When yarn break controller detection head A goes up no yarn or yarn stop motion, be output as high level by holding wire S end, triode V1 conducting at this moment, relay K 1 action sends stop sign for loom C, D two ends, triode V2 conducting simultaneously, LED 2 is bright.The yarn break controller of circuit B ' of the present invention is identical with A ' yarn break controller operation principle, and the B detection head is identical with the operation principle of A detection head.

The course of work of circuit diagram 2 of the present invention is: connect loom 24V power supply, when yarn detects hole 1 on detection head A, detection head B, detect when moving in the hole 2, LED 1, LED 3 are bright, LED 2, LED 4 go out, at this moment detection head A, detection head B output low level, relay K 1 normally opened contact on yarn break controller A ', the yarn break controller B ', electrical equipment K2 normally opened contact, be normally open, loom runs well; When the detection hole 1 on the yarn detection head A, the detection hole 2 on the detection head B, detect hole interrupt line or out of service, at this moment LED 1, LED 3 are bright, LED 2, LED 4 are bright, detection head A, detection head B export high level simultaneously, relay K 1 normally opened contact, relay K 2 normally opened contacts on the yarn break controller A ' are normally off, and the 1 normally opened contact C of the relay K on the loom, normally opened contact D two ends are sent the signal that cut-offs, loom shuts down.Yarn break controller A ', yarn break controller B ', weft yarn passes through in the B detection head device hole by A, weft yarn,

Disconnected or when not having weft yarn when weft yarn, can produce signal of telecommunication automatic stop automatically, this device can up-down adjustment, and angle also can be set at any time according to actual needs.

Claims

1. air-jet loom piezoelectric type yarn break preventing supervising device, constitute by power supply, yarn break controller detection head, relay, signal picker, yarn break controller detection head testing circuit, light emitting diode, it is characterized in that: the 24V dc source is connected with the input of IC 7812 through first resistance R 1, first capacitor C 1 in parallel and an end of second capacitor C 2 are connected with yarn break controller detection head holding wire V with the output of IC 7812, and its other end is connected with holding wire common port (G) ground wire; LED 1 one ends are connected with yarn break controller detection head holding wire V with the output of IC 7812, and the other end is connected with holding wire common port (G) ground wire through the 3rd resistance R 3; The output of one termination IC 7812 of second resistance R 2 and yarn break controller detection head holding wire V, the other end is connected to the base stage of detection head holding wire S, triode V1 of yarn break controller and the base stage of triode V2 respectively, and the emitter stage of triode V1 and triode V2 is connected with holding wire common port (G) ground wire; One end of relay K 1 is connected with yarn break controller detection head holding wire V with the output of IC 7812, and the other end is connected with triode V1 colelctor electrode; One end of LED 2 is connected with yarn break controller detection head holding wire V with the output of IC 7812, and the other end of LED 2 is connected with the colelctor electrode of triode V2 through the 4th resistance R 4; Yarn break controller B ' is identical with yarn break controller A ' circuit connecting mode.