CN105887309A - High-stability broken needle detection device - Google Patents

Abstract

The invention provides a high-stability broken needle detection device which is difficult to fail and high in detection precision. The high-stability broken needle detection device comprises a detection rod (4), a fixing pipe (3) and a signal conversion circuit, wherein one end of the detection rod (4) is inserted into the fixing pipe (3) while the other end is suspended on the exterior of the fixing pipe (3); a first conductive part (14) which is in contact and connected with a pipe opening of the fixing pipe (3) in a swinging process is arranged on the detection rod (4); the signal conversion circuit comprises a voltage reduction unit and a signal output unit; the fixing pipe (3) is electrically connected with an anode of a high-voltage direct current power supply; the first conductive part (14) is electrically connected with one end of the voltage reduction unit; the other end of the voltage reduction unit is electrically connected with one end of the signal output unit; the other end of the signal output unit is electrically connected with a cathode of the high-voltage direct current power supply; a signal output end of the signal output unit is electrically connected with a controller of a hosiery machine.

Description

High stability needle-break detection device

Technical field

The present invention relates to socks and manufacture equipment technical field, be especially high stability needle-break detection device.

Background technology

Current needle-break detection device, its test section divides and is easily contaminated and causes detecting malfunctioning, and stability is relatively Low, in order to avoid malfunctioning because polluting the detection caused, having a kind of needle-break detection device is from upper end, hosiery machine working area Extending into straight down and knit socks pin upper end, when there is broken needle, it may appear that the phenomenon of line stacking, line stacking will push away Dynamic detection probe moves up, and detection probe moves up, and triggers the signal of telecommunication and is emitted to the controller of hosiery machine, from And generation broken needle being detected, mechanical movement is converted into the part of the signal of telecommunication and is positioned at outside and carries out soiling protective, this Sample, it is avoided that the part that mechanical movement is converted into the signal of telecommunication is contaminated and causes malfunctioning, but, this kind of broken needle Detection device needs to detect probe and moves axially and can detect, and needs to detect probe to improve accuracy of detection Extending into and knit socks pin upper end, find in actual production, said structure not only precision is relatively difficult to ensure card, and occupies Limited hosiery machine working area, it is easy to be wound into line, cause the problems such as broken string, it addition, during knitting socks, Knitting the highly desirable of socks pin when weaving heel to be continually changing, therefore detection probe is away from knitting on socks pin End, surveys to avoid the occurrence of by mistake, and this and above-mentioned detection probe extend into straight down from upper end, hosiery machine working area knits socks Pin upper end forms contradiction, in order to balance this contradiction, designing, install, many processes such as debugging are required to examine Considering this contradiction, thus the design that seems, install, debug complex, stability, reliability are relatively low.

Summary of the invention

The technical problem to be solved is, overcomes defect present in prior art, it is provided that one is difficult to Malfunctioning, that accuracy of detection is higher high stability needle-break detection device.

For solving above-mentioned technical problem, the present invention proposes high stability needle-break detection device, and it includes detecting bar, It also includes fixing pipe and signaling conversion circuit, and fixing pipe is inserted in detection bar one end and the other end is suspended at fixing pipe Outward, detection bar is provided with when it swings the first conducting position that can contact conducting with the mouth of pipe of fixing pipe；Signal turns Changing circuit and include pressure unit, signal output unit, fixing pipe is connected with high-voltage DC power supply positive electrical, and first Conducting position electrically connects with pressure unit one end, and the pressure unit other end electrically connects with signal output unit one end, The signal output unit other end is connected with high-voltage DC power supply negative electricity, the signal output part of signal output unit with The controller electrical connection of hosiery machine.

As improvement, it also includes mounting seat and slide block, mounting seat and slide block pivot bush unit, and slide block is by driving dress Put driving to slide, slide block is provided with described fixing pipe and detection bar, the fixing pipe of fixing pipe fixing pipe detection bar The fixing tube drive device of pipe fixed by detection bar, fixing pipe electrically connects with the controller of hosiery machine.

As improvement, described driving means is pneumatic means, this pneumatic means include the cylinder for promoting slide block, For retracting the back-moving spring of slide block and as the L bracket being connected with mounting seat of installing rack, L bracket While be connected with fixing L bracket with hosiery machine, the another side of L bracket is suspended at slide block one end, cylinder Cylinder barrel is connected with described another side, and the expansion link of cylinder offsets with one end of slide block, one end of back-moving spring with One end away from slide block of cylinder connects, and the other end of back-moving spring is connected with slide block；Described pneumatic means and socks The controller of machine electrically connects.

As improvement, described slide block bottom surface is additionally provided with the locating part moved for position limiting slide block, and locating part is permissible For positive stop lug boss or wherein one for bolt that fixing pipe is fixed on slide block.

As improvement, detection bar is the round bar being coated with insulating barrier of monolithic conductive, and one end of detection bar connects to be had For the insulating plug of fixed test bar, round bar is provided with the first conducting position described in formation at the mouth of pipe of fixing pipe Exposed part；Described insulating plug is provided with the interface for detection bar electrical connection pressure unit one end.

As improvement, the other end of detection bar is provided with detection hook.

After using said structure, compared with prior art, the invention have the advantages that

1, owing to being provided with signaling conversion circuit, it is possible to use the DC source of the high pressure such as 220V, 110V, High pressure is conducive to the first conducting position to contact conducting with the mouth of pipe of fixing pipe, and to resistant to pollution impact, detection is difficult to Malfunctioning.

2, owing to being swing detection, during so installing the present invention, can enter with oblique cutting or the work of laterally inserted hosiery machine District, rather than prior art needs to install straight down like that, the axially-movable of hosiery machine working area is affected relatively by the present invention Few；When the stocking leg knitted by hosiery machine, promote slide block by driving means, make detection bar enter detection position, work as generation Broken needle, the stitch on knitting needle cannot hook line, and line will be piled up and rotate, when line is stacked into certain height Touch detection bar when spending, so that detection bar swings, come in contact with fixing pipe at the first conducting position Time circuit ON, i.e. fixing pipe, the first conducting position, signaling conversion circuit formation path, signaling conversion circuit Being signaled to the controller of hosiery machine, controller of hosiery machine will control hosiery machine and shut down, and reports to the police, at braiding foot During with position, it is not necessary to detected by this device, controller of hosiery machine sends instruction will be sliding by driving means Block brings back to exit position, so that detection bar is tried one's best away from hosiery machine working area；Summary, it is not necessary to detection Device moves axially and just can carry out the detection of broken needle phenomenon and can automatically exit from when need not detection, this There is not contradiction in bright and braiding heel process, accuracy of detection is higher, and without too much taking limited hosiery machine work Make district, it is not easy to be wound into line, cause the problems such as broken string, design simultaneously, install, debug relatively simple, surely Qualitative, reliability is higher.

3, further, when selecting pneumatic means as driving means, promote slide block to make it by Telescopic-cylinder bar Move into place so that it is be in detection position, make spring be in extended state simultaneously, when weaving heel position, Controller of hosiery machine sends instruction and is regained by expansion link, by the pulling force of spring reset, slide block is come back to start bit Put (i.e. exiting position), and fix each parts by L bracket as installing rack, by pneumatic means and inspection Survey device combines, and is more favorable for mounting structure more compact and reasonable.

4, the bottom surface at slide block is additionally provided with locating part, can play auxiliary when driving means is by slipper push fixed Position effect, locating part can be separately provided a positive stop lug boss, it is also possible to is for fixing pipe is fixed on slide block A wherein bolt.

5, detection bar is the round bar being coated with insulating barrier of monolithic conductive, and one end of detection bar connects to be had for solid The insulating plug of regular inspection measuring staff, fixing pipe is horn-like, compared with tubulose away from the lumen shape of one end of insulating plug Increase area when fixing pipe contacts with detection bar, improve sensitivity, simultaneously by insulating plug and insulating barrier Ensure that its insulating properties, reduce the probability by mistake surveyed, improve the reliability of detection device.

Accompanying drawing explanation

Fig. 1 is that the mode slide block that high stability needle-break detection device of the present invention uses pneumatic means to drive does not slides Structural representation when putting in place.

Fig. 2 is that the mode slide block that high stability needle-break detection device of the present invention uses pneumatic means to drive slides into Structural representation during position.

Fig. 3 is the half sectional view that high stability needle-break detection device of the present invention fixes pipe and detection bar.

Fig. 4 is the circuit theory diagrams of the signaling conversion circuit of high stability needle-break detection device of the present invention.

Fig. 5 is the structure that the signaling conversion circuit of high stability needle-break detection device of the present invention is located on ceramic wafer Schematic diagram.

Shown in figure, 1, mounting seat, 2, slide block, 3, fixing pipe, 4, detection bar, 5, insulating plug, 6, Insulating barrier, 7, cylinder, 8, spring, 9, locating part, 10, bolt, 11, interface, 12, L bracket, 13, expansion link, the 14, first conducting position, 15, detection hook, 16, Zener diode, 17, resistance, 18, First electric capacity, the 19, second electric capacity, 20, optocoupler, the 21, first stitch, the 22, second stitch, the 23, the 3rd Stitch, the 24, the 4th stitch, the 25, the 5th stitch, the 26, the 6th stitch.

Detailed description of the invention

The present invention is further detailed explanation below:

High stability needle-break detection device of the present invention, it includes detecting bar 4, and it also includes fixing pipe 3 and signal Change-over circuit, fixing pipe 3 is inserted in detection bar 4 one end and the other end is suspended at outside fixing pipe 3, detects bar 4 It is provided with when it swings the first conducting position 14 that can contact conducting with the mouth of pipe of fixing pipe 3；Signal conversion electricity Road includes pressure unit, signal output unit, and fixing pipe 3 is connected with high-voltage DC power supply positive electrical, and first leads Electricity position 14 electrically connects with pressure unit one end, and the pressure unit other end electrically connects with signal output unit one end, The signal output unit other end is connected with high-voltage DC power supply negative electricity, the signal output part of signal output unit with The controller electrical connection of hosiery machine.

This example use signaling conversion circuit, including some Zener diodes 16, resistance the 17, first electric capacity 18, Second electric capacity 19, optocoupler 20, some Zener diodes 16 sequentially connect formation pressure unit, optocoupler 20 is Signal output unit, one end of described pressure unit is positive terminal, one end of the first electric capacity 18, resistance 17 One end, the positive pole of optocoupler 20 input all electrically connect with the other end of pressure unit, the first electric capacity 18 another One end, the other end of resistance 17, the negative pole of optocoupler 20 input are all connected with high-voltage DC power supply negative electricity, One end of second electric capacity 19 is connected with the positive pole of optocoupler 20 outfan, the other end of the second electric capacity 19 and optocoupler The negative pole of 20 outfans connects, and optocoupler 20 outfan is the signal output part of described signal output unit；Letter The operation principle of number change-over circuit is, by pressure unit blood pressure lowering, after blood pressure lowering, voltage drives optocoupler work, so By optocoupler output detections signal, optocoupler has buffer action.

Signaling conversion circuit is located on ceramic wafer, i.e. arrange in the surface, the same side of ceramic wafer described some surely Pressure diode 16, resistance the 17, first electric capacity the 18, second electric capacity 19, optocoupler 20, some Zener diodes 16 left sides being positioned at ceramic wafer, and be the most sequentially distributed, optocoupler 20 is positioned at the right side of ceramic wafer, resistance 17, the first electric capacity 18 is respectively positioned between some Zener diodes 16 and optocoupler 20, and the first electric capacity 18 is positioned at fall Pressure unit upper right side, resistance 17 is positioned on the left of optocoupler 20, and the second electric capacity 19 is positioned on the upside of optocoupler 20；Pottery It is positioned on the downside of plate below Zener diode 16 and is provided with first stitch the 21, second stitch 22, be positioned on the downside of ceramic wafer It is provided with the 3rd stitch the 23, the 4th stitch 24 below optocoupler 20, is positioned on the downside of ceramic wafer on the left of the 3rd stitch 23 Being provided with the 5th stitch the 25, the 6th stitch 26, the first stitch 21 is positive terminal, and the second stitch 22 is negative pole end, 3rd stitch the 23, the 4th stitch 24 is respectively the both positive and negative polarity of optocoupler 20 outfan；First stitch 21, second Stitch 22, some Zener diodes 16, resistance the 17, first electric capacity the 18, second electric capacity 19, optocoupler 20, The copper facing being electrically connected with on ceramic wafer between 3rd stitch the 23, the 4th these components and parts of stitch 24 is formed Copper cash is attached；Owing to unidirectional current reduces to low pressure from high pressure, the heat of generation needs to derive, the most in time Causing fault, ceramic wafer not only intensity is high, good insulating, and radiating effect, so being more beneficial for carrying The reliability of the high present invention and stability, meanwhile, being reasonably distributed of each components and parts, the most dry the while of compacter Disturbing few, the circuit of the copper cash that copper facing is formed is brief, and after ceramic wafer carries, signaling conversion circuit has been made into sheet Shape plug-in unit, has modularity feature, is more beneficial for reducing design and production cost, improves production efficiency and product Quality.

Each Zener diode 16 is paster stabilivolt, and resistance 17 is fixed carbon resister, and the first electric capacity 18 is electrolysis Electric capacity, so, easily facilitates and is arranged on ceramic wafer, raising production efficiency, reduction production cost, meanwhile, Paster stabilivolt, fixed carbon resister, electrochemical capacitor reach flat between cost and required stability, ruggedness Weighing apparatus.

Ceramic wafer outer surface be provided with by described some Zener diodes 16, resistance the 17, first electric capacity 18, Each components and parts so, are on the one hand strengthened protection by the electron level epoxy resin that two electric capacity 19, optocoupler 20 cover With fixing, on the other hand improve insulating properties, the insulating properties between the most each components and parts, this improvement advantageously in Improve durability, stability and reliability.

First stitch the 21, second stitch the 22, the 3rd stitch the 23, the 4th stitch the 24, the 5th stitch the 25, the 6th Stitch 26 is tin plating draw point, and so, each stitch intensity and toughness are high, it is possible to support pottery reliable and stablely Porcelain plate.

Spacing between first stitch 21 and the second stitch 22 is more than between the 3rd stitch 23 and the 4th stitch 24 Spacing, the spacing phase between the 3rd stitch the 23, the 4th stitch the 24, the 5th stitch the 25, the 6th stitch 26 Deng, the spacing between the second stitch 22 and the 5th stitch 25 at least above 9 millimeters, such as 10 millimeters, this , owing to the 5th stitch the 25, the 6th stitch 26 is sky foot in fact, there is not electric connection in sample, the 5th stitch 25, The effect of the 6th stitch 26 is to provide ceramic wafer to strengthen supporting, and the 3rd stitch the 23, the 4th pin 24 foot Export for light current, so the 5th stitch the 25, the 6th stitch 26 is arranged on the 3rd stitch the 23, the 4th stitch 24 Left side more reasonable benefit/risk, structure is the compactest, and the spacing between the second stitch 22 and the 5th stitch 25 is extremely Less more than 8 millimeters, it is possible to effectively isolate, prevent the first stitch, the strong power part of the second stitch from affecting position In the weak current part on right side, the purpose that first stitch the 21, second stitch 22 spacing is big lie also in the first stitch 21, Strengthening isolation between second stitch 22, avoid as far as possible influencing each other, said structure is ensureing compact conformation letter It is single that emphasis has carried out strengthening supporting and isolation design simultaneously, thus advantageously in improving durability, stability And reliability.

In this example, DC source is to have pulsatile characteristics to what city's 220V alternating current obtained after full-bridge rectification 220V unidirectional current；For 220V unidirectional current, presser unit is provided with four Zener diodes 16, if direct current Power supply is 110V unidirectional current, then have only to two Zener diodes 16.

It also includes mounting seat 1 and slide block 2, mounting seat 1 and slide block 2 pivot bush unit, and slide block 2 is filled by driving Putting driving to slide, slide block 2 is provided with described fixing pipe 3 and detection bar 4, it is solid that pipe 3 fixed by fixing pipe 3 Fixed tube 3 detects bar 4 and detects bar 4 and fix pipe 3 and fix the controller of pipe 3 driving means, fixing pipe 3 and hosiery machine Electrical connection.

Described driving means is pneumatic means, this pneumatic means include the cylinder 7 for promoting slide block 2, for Retract the back-moving spring 8 of slide block 2 and as the L bracket 12, L being connected with mounting seat 1 of installing rack Shape support 12 while be connected with fixing L bracket 12 with hosiery machine, the another side of L bracket 12 is suspended at cunning Block 2 one end, the cylinder barrel of cylinder 7 is connected with described another side, the expansion link 13 of cylinder 7 and slide block 2 One end offsets, and one end of back-moving spring 8 is connected with one end away from slide block 2 of cylinder 7, back-moving spring 8 The other end be connected with slide block 2；Described pneumatic means electrically connects with the controller of hosiery machine.

Described slide block 2 bottom surface is additionally provided with the locating part 9 moved for position limiting slide block 2, and locating part 9 can be Positive stop lug boss or wherein one for bolt 10 that fixing pipe 3 is fixed on slide block, bolt 10 or boss exist Slide block 2 move into place after against mounting seat 1.

Detection bar 4 be the round bar being coated with insulating barrier 6 of monolithic conductive, one end connection of detection bar 4 have for The insulating plug 5 of fixed test bar 4, round bar is provided with the first conductive part described in formation at the mouth of pipe of fixing pipe 3 The exposed part of position 14；Described insulating plug 5 is provided with the interface electrically connecting pressure unit one end for detection bar 4 11, fixing pipe 3 is horn-like away from one end lumen shape of insulating plug 5, increases solid compared with cylindrical tube Area when fixed tube 3 contacts with detection bar 4, improves sensitivity, simultaneously by insulating plug 5 and insulating barrier 6 Ensure that its insulating properties, reduce the probability by mistake surveyed and ensure that the reliability of detection device.

The other end of detection bar 4 is provided with detection hook 15, can improve the sensitivity of detection, occur that line heap stacks When coming, need not be able to detect that higher position very much, the generation of scrap wire can be reduced.

The above is only the better embodiment of the present invention, thus all according to the structure described in present patent application scope, The equivalence that feature and principle are done changes or modifies, in the range of being all included in present patent application.

Claims (6)

1. a high stability needle-break detection device, it includes detecting bar (4), it is characterised in that it also wraps Including fixing pipe (3) and signaling conversion circuit, fixing pipe (3) is inserted in detection bar (4) one end and the other end hangs Putting at fixing pipe (3) outward, detection bar (4) is provided with and can contact with the mouth of pipe of fixing pipe (3) when it swings First conducting position (14) of conducting；Signaling conversion circuit includes pressure unit, signal output unit, fixing Pipe (3) is connected with high-voltage DC power supply positive electrical, and the first conducting position (14) is electrically connected with pressure unit one end Connecing, the pressure unit other end electrically connects with signal output unit one end, the signal output unit other end and high straightening Stream power cathode electrical connection, the signal output part of signal output unit electrically connects with the controller of hosiery machine.

High stability needle-break detection device the most according to claim 1, it is characterised in that it also includes Mounting seat (1) and slide block (2), mounting seat (1) and slide block (2) pivot bush unit, slide block (2) is by driving Device drives and slides, and slide block (2) is provided with described fixing pipe (3) and detection bar (4), fixing pipe (3) The fixing pipe (3) of the fixing pipe (3) of the fixing pipe (3) detection bar (4) detection bar (4) of fixing pipe (3) drives Device, fixing pipe (3) electrically connect with the controller of hosiery machine.

High stability needle-break detection device the most according to claim 2, it is characterised in that described driving Device is pneumatic means, and this pneumatic means includes for promoting the cylinder of slide block (2) (7), being used for retracting cunning The back-moving spring (8) of block (2) and the L bracket (12) being connected with mounting seat (1) as installing rack, L bracket (12) while be connected with fixing L bracket (12) with hosiery machine, another of L bracket (12) While be suspended at slide block (2) one end, the cylinder barrel of cylinder (7) is connected with described another side, cylinder (7) Expansion link (13) offsets with one end of slide block (2), and one end of back-moving spring (8) is remote with cylinder (7) Connecting from one end of slide block (2), the other end of back-moving spring (8) is connected with slide block (2)；Described pneumatic Device electrically connects with the controller of hosiery machine.

High stability needle-break detection device the most according to claim 3, it is characterised in that described slide block (2) bottom surface is additionally provided with the locating part (9) for position limiting slide block (2) movement, and locating part (9) can be Positive stop lug boss or wherein one for bolt (10) that fixing pipe (3) is fixed on slide block.

High stability needle-break detection device the most according to claim 1, it is characterised in that detection bar (4) For the round bar being coated with insulating barrier (6) of monolithic conductive, one end of detection bar (4) connects to be had for fixing inspection The insulating plug (5) of measuring staff (4), round bar is provided with the first conduction described in formation at the mouth of pipe of fixing pipe (3) The exposed part at position (14)；Described insulating plug (5) is provided with for detection bar (4) electrical connection pressure unit The interface (11) of one end.

High stability needle-break detection device the most according to claim 1, it is characterised in that detection bar (4) The other end be provided with detection hook (15).