CN102493105A - Electronic weft selector output short circuit preventing and alarming device - Google Patents
Electronic weft selector output short circuit preventing and alarming device Download PDFInfo
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- CN102493105A CN102493105A CN2011103910518A CN201110391051A CN102493105A CN 102493105 A CN102493105 A CN 102493105A CN 2011103910518 A CN2011103910518 A CN 2011103910518A CN 201110391051 A CN201110391051 A CN 201110391051A CN 102493105 A CN102493105 A CN 102493105A
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- electronic weft
- selection device
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Abstract
The invention relates to an electronic weft selector output short circuit preventing and alarming device, which comprises a direct current power supply unit providing direct voltage for an electronic weft selector and a main control unit. A fault detection unit for analyzing current fluctuation on a line and an execution unit used for connecting and disconnecting a direct current power supply system and the electronic weft selector after receiving control signals are arranged between the electronic weft selector and the direct current power supply unit. The main control unit is used for connecting the fault detection unit and the execution unit, receives and analyzes detection signals of the fault detection unit, and enables the control signals to be sent to the execution unit. The electronic weft selector output short circuit preventing and alarming device can rapidly detect and determine whether short troubles occur or not and gives out corresponding control commands when output short circuits suddenly happens to the electronic weft selector, prevents damage to systematic components caused by too long duration of short-circuit current, and protects the electronic weft selector and the direct current power supply system.
Description
Technical field
The present invention relates to a kind of electronic weft selection device of textile industry, be specifically related to a kind of when electronic weft selection device failed because, can prevent short circuit and disconnection power supply, send the device of warning.
Background technology
The electronic weft selection device is the vitals of textile machinery; Its quality quality directly has influence on the quality of product; Because the electronics of electronic weft selection device utilization high reliability selects the color control system, therefore need to consider the situation of output short-circuit fault to occur under the different operating state; This output short-circuit fault can cause system's immediate current excessive; If the duration is long, electronics selects the power component in the color control system to burn, the electronic weft selection device is caused immeasurable heavy losses because of the short circuit heating causes thermal accumlation to surpass its tolerance degree.Think the high reliability operation that guarantees the electronic weft selection device, need carry out tight prevention safeguard measure to this fault, but at present in all electronic weft selection device products, not relevant prior art.
Summary of the invention
For solving the problem that in time to report to the police to the short trouble of electronic weft selection device in the prior art; The present invention provides a kind of ground line current to the electronic weft selection device to change; Judge whether failed because; In case confirm to take place the scheme that bigger loss is avoided in the power supply of disconnection electronic weft selection device in time; Concrete scheme is following: a kind of electronic weft selection device output short-circuit prevention and warning device; Being included as the electronic weft selection device provides the dc power supply unit of DC voltage, it is characterized in that, the performance element that break-make DC power-supply system and electronic weft selection device are got in touch after being connected with the fault detection unit of current fluctuation on the analysis circuit between said electronic weft selection device and the dc power supply unit and accepting control signal; The main control unit that connects fault detection unit and performance element, said main control unit receive the detection signal of analysis of failure detecting unit also and control signal are transported to performance element.
The circuit that is convenient control electronic weft selection device breaks off: said dc power supply unit provides 5V and 32V DC voltage for the prevention of electronic weft selection device output short-circuit and warning device simultaneously, and wherein performance element is connected between dc power supply unit and the electronic weft selection device on the 32V DC voltage circuit.
For the type of alarm in the difference is provided to the user: said main control unit is connected with alarm unit, and said alarm unit comprises light warning and acoustic alarm; Said light is reported to the police and is made up of the resistance 9, the light emitting diode D2 that are connected on successively between main control unit and the ground wire; Said acoustic alarm is made up of the resistance R 7, triode Q3 and the buzzer that are connected on successively between main control unit and the ground wire.
For obtaining the real-time voltage of electronic weft selection device: said fault detection unit comprises the operating current of the safe threshold values circuit of setting electronic weft selection device trouble free service voltage, the current electronic weft selection device of sampling and is converted into the sample circuit of sampled voltage and carries out voltage ratio voltage than device; Wherein safe threshold values circuit is connected with voltage comparator respectively with sample circuit; Output low level when voltage comparator is higher than the voltage of safe threshold values circuit at the voltage of sample circuit, otherwise output high level.
For avoiding maloperation: said main control unit is identified the duration of low level signal when receiving the low level signal of fault detection unit, is only being satisfied under the situation of setting-up time, just to performance element output cut-off signal.
For realizing the comparison of electronic weft selection device safe voltage and real-time voltage: said safe threshold values circuit is: resistance R 2 and R3 are connected between the 5V and ground wire of dc power supply unit; Be connected with voltage comparator through the node between R2 and the R3 then, capacitor C 1 is connected in parallel on the two ends of resistance R 3; Said sample circuit is: resistance R 1 is connected on that the back is connected with voltage comparator between the ground wire of dc power supply unit and electronic weft selection device, and capacitor C 4 and diode ZD1 are connected on the two ends of resistance R 1.
For confirming the break-make of electronic weft selection device electric current: said performance element is the closed type electromagnetic relay; Main control unit is connected with electromagnetic relay with triode Q1 through the resistance R 5 of series connection; The capacitor C 6 of between resistance R 5 and ground wire, connecting is at diode D1 of the two ends of electromagnetic relay series connection.
For making things convenient for system to reset: said main control unit is connected with and is used for manually main control unit being carried out the reset unit that system resets, and reset unit is made up of resistance R between 5V circuit that is connected on dc power supply unit successively and the main control unit 8 and switch S 1.
When the output short-circuit fault takes place suddenly at the electronic weft selection device in the present invention; Can detect and determine whether failed because rapidly and send control commands corresponding; Avoid long damage system unit of short circuit current duration, protection electronic weft selection device and DC power-supply system.The low level signal that the main control unit assurance is received just sends in the reasonable time of continuing and controls the order of opening circuit, the maloperation of avoiding non-short trouble to bring.Alarm unit is realized the warning of number of ways, can in time cause operating personnel's attention.Warning device of the present invention and the parallelly connected access of electronic weft selection device dc power supply unit; When the output short-circuit fault took place, warning device both can move by inherently safe, and electronic weft selection device of safety cut-off in time and dc power supply unit gets in touch again; Whole warning device is simple in structure; Be easy to install, can select the perfection of color control system to be connected with the electronics of primary electron weft-selecting mechanism, security reliability is high.
Description of drawings
Fig. 1 schematic diagram of the present invention.
Fault detection unit circuit diagram among Fig. 2 Fig. 1.
Main control unit circuit diagram among Fig. 3 Fig. 1.
Reset unit circuit diagram among Fig. 4 Fig. 1.
Fig. 5 integrated circuit sketch map of the present invention.
The specific embodiment
As shown in Figure 1; This programme is included as the dc power supply unit that the electronic weft selection device provides different electric pressures; Dc power supply unit provides the DC voltage of 5V and 32V for the electronic weft selection device; For whole device 5V is provided DC voltage simultaneously, fault detection unit is connected between the ground wire of ground wire and electronic weft selection device of dc power supply unit, and fault detection unit outputs to main control unit with testing result; Main control unit carries out analysis and judgement to testing result and is transported to performance element and the alarm unit that connects respectively again, and performance element is connected dc power supply unit and is transported in the 32V circuit of electronic weft selection device.
Wherein fault detection unit comprises voltage comparator and safe threshold values circuit, sample circuit; Safe threshold values circuit is used to set the corresponding threshold voltage of electronic weft selection device trouble free service electric current; And threshold voltage is transported in the voltage comparator, sample circuit is used to the operating current of current electronic weft selection device of sampling, and is converted into sampled voltage; Voltage comparator compares threshold voltage and sampled voltage; When sampled voltage during greater than threshold voltage, to main control unit output low level signal, otherwise the output high level signal.Main control unit comprises microprocessor, and microprocessor is analyzed low level signal wherein behind the incoming level signal, when the duration of low level signal is satisfied setting, sends ON-and OFF-command to performance element, sends alarm signal to alarm unit simultaneously.Performance element is a closed type electromagnetic relay, after receiving the ON-and OFF-command of main control unit, breaks off the 32V circuit that dc power supply unit is transported to the electronic weft selection device, and then the electronic weft selection device quits work, and avoids fault that system is caused further influence.
Like Fig. 2 and shown in Figure 5; The safe threshold values circuit of fault detection unit is connected between the 5V and ground wire of dc power supply unit by resistance R 2 and R3; Form resistor voltage divider circuit; Be connected with voltage comparator through the node between R2 and the R3 then, be connected in parallel on the two ends of resistance R 3 as the capacitor C 1 of filtering; Said sample circuit is: utilize resistance R 1 to be connected between the ground wire of dc power supply unit and electronic weft selection device; Convert electronic weft selection device current signal into voltage signal through R1; Sampled voltage is transported to voltage comparator, and capacitor C 4 and diode ZD1 are connected in parallel on the two ends of resistance R 1, and capacitor C 4 is as filter capacitor; Sample rate current moment that ZD1 can prevent that resistance R 1 from detecting as the TVS diode is excessive, and to cause exporting sampled voltage too high and damage circuit, the security that has improved system.On the outlet line of voltage comparator, connect a resistance R 4, resistance R 4 is as the pull-up resistor of voltage comparator output sampled result signal, can with neutral signal clamped be high level, prevent misoperation.
Like Fig. 3 and shown in Figure 5, main control unit comprises a microprocessor AT89C2052, and microprocessor is as the signal analysis and the control centre of whole device; Level signal to receiving is judged; The level signal of voltage comparator output is connected with the pin 19 of microprocessor, after the time of the satisfied setting of the low level signal of receiving, is transported to performance element, series resistance R5, triode Q1 successively between microprocessor and performance element; The input of resistance R 5 is connected with the pin of microprocessor 18; The filter capacitor C6 that between resistance R 5 and ground wire, connects, at diode D1 of the two ends of normally closed electromagnetic relay parallel connection, the control signal that resistance R 5 will come from main control unit as current-limiting resistance is connected to the input of triode; In case the high level that control signal output satisfies condition; Then will control the triode conducting, break off, thereby cut off getting in touch of dc power supply unit and electronic weft selection device thereby control normally closed electromagnetic relay.
At microprocessor in performance element output cut-off signal; For reminding operating personnel's attention, also start alarm unit simultaneously and report to the police, alarm unit comprises acoustic alarm and light warning; Wherein the pin 11 of microprocessor connects a current-limiting resistance R9 and a light emitting diode D2 who is connected between the ground wire; Form optical alarm circuit, the pin 13 of microprocessor connects a current-limiting resistance R7 and a triode Q3 who is connected between the ground wire, forms sound alarm circuit with the control buzzer.
Like Fig. 4, shown in 5, on the pin 6 of microprocessor, connect a reset unit, reset unit is by the pull-up resistor R8 and the reset switch S1 that are connected on successively between dc power supply unit and the ground wire.After the trouble shooting of electronic weft selection device, manually to control reset key and make main control unit return to normal operating conditions, the connection of control performance element is got in touch with the electronic weft selection device, to recover the power supply of electronic weft selection device.
Claims (8)
1. an electronic weft selection device output short-circuit prevents and warning device; Being included as the electronic weft selection device provides the dc power supply unit of DC voltage; It is characterized in that; The performance element that break-make DC power-supply system and electronic weft selection device are got in touch after being connected with the fault detection unit of current fluctuation on the analysis circuit between said electronic weft selection device and the dc power supply unit and accepting control signal; The main control unit that connects fault detection unit and performance element, said main control unit receive the detection signal of analysis of failure detecting unit also and control signal are transported to performance element.
2. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 1 and warning device; It is characterized in that; Said dc power supply unit provides 5V and 32V DC voltage for electronic weft selection device output short-circuit prevention and warning device simultaneously, and wherein performance element is connected between dc power supply unit and the electronic weft selection device on the 32V DC voltage circuit.
3. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 1 and warning device is characterized in that said main control unit is connected with alarm unit, and said alarm unit comprises light warning and acoustic alarm; Said light is reported to the police and is made up of the resistance 9, the light emitting diode D2 that are connected on successively between main control unit and the ground wire; Said acoustic alarm is made up of the resistance R 7, triode Q3 and the buzzer that are connected on successively between main control unit and the ground wire.
4. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 1 and warning device; It is characterized in that; Said fault detection unit comprises the operating current of the safe threshold values circuit of setting electronic weft selection device trouble free service voltage, the current electronic weft selection device of sampling and is converted into the sample circuit of sampled voltage and carries out voltage ratio voltage than device; Wherein safe threshold values circuit is connected with voltage comparator respectively with sample circuit; Output low level when voltage comparator is higher than the voltage of safe threshold values circuit at the voltage of sample circuit, otherwise output high level.
5. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 4 and warning device; It is characterized in that; Said main control unit is when receiving the low level signal of fault detection unit; Duration to low level signal is identified, is only satisfying under the situation of setting-up time, just to performance element output cut-off signal.
6. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 4 and warning device; It is characterized in that; Said safe threshold values circuit is: resistance R 2 and R3 are connected between the 5V and ground wire of dc power supply unit; Be connected with voltage comparator through the node between R2 and the R3 then, capacitor C 1 is connected in parallel on the two ends of resistance R 3; Said sample circuit is: resistance R 1 is connected on that the back is connected with voltage comparator between the ground wire of dc power supply unit and electronic weft selection device, and capacitor C 4 and diode ZD1 are connected on the two ends of resistance R 1.
7. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 1 and warning device; It is characterized in that; Said performance element is the closed type electromagnetic relay; Main control unit is connected with electromagnetic relay with triode 01 through the resistance R 5 of series connection, the capacitor C 6 of between resistance R 5 and ground wire, connecting, and a diode D1 connects at the two ends of electromagnetic relay.
8. a kind of electronic weft selection device output short-circuit prevention as claimed in claim 1 and warning device; It is characterized in that; Said main control unit is connected with and is used for manually main control unit being carried out the reset unit that system resets, and reset unit is made up of resistance R between 5V circuit that is connected on dc power supply unit successively and the main control unit 8 and switch S 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391051 CN102493105B (en) | 2011-11-30 | 2011-11-30 | Electronic weft selector output short circuit preventing and alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391051 CN102493105B (en) | 2011-11-30 | 2011-11-30 | Electronic weft selector output short circuit preventing and alarming device |
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| CN102493105A true CN102493105A (en) | 2012-06-13 |
| CN102493105B CN102493105B (en) | 2013-06-12 |
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| CN 201110391051 Active CN102493105B (en) | 2011-11-30 | 2011-11-30 | Electronic weft selector output short circuit preventing and alarming device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036201A (en) * | 2012-12-27 | 2013-04-10 | 苏州弘贸纺织有限公司 | Textile machine mechanical failure positioning system |
| CN104934934A (en) * | 2015-06-24 | 2015-09-23 | 佛山联升压铸科技有限公司 | Short circuit detecting protective device for die-casting machine |
| CN105159058A (en) * | 2015-07-27 | 2015-12-16 | 兖州煤业股份有限公司 | Pilot circuit control method, pilot circuit controller and pilot circuit |
| CN107380207A (en) * | 2017-07-19 | 2017-11-24 | 郑州盛源万通科技有限公司 | Anti-jump method, apparatus and track circuit |
| CN108919032A (en) * | 2018-07-26 | 2018-11-30 | 深圳市宇顺电子股份有限公司 | A kind of Mesh line test circuit and test method |
| CN111596231A (en) * | 2020-05-06 | 2020-08-28 | 上海挚想科技有限公司 | Shared charger power supply line detection system and shared charger power supply line detection method |
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| JPS57205553A (en) * | 1981-06-10 | 1982-12-16 | Tsudakoma Ind Co Ltd | Weft yarn selector of loom |
| CN88203295U (en) * | 1988-02-08 | 1988-11-23 | 浙江丝绸工学院 | Electronic weft selecting system |
| US5095953A (en) * | 1989-07-14 | 1992-03-17 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Computer control of auxiliary weft nozzles in a multi-color jet loom |
| CN1073992A (en) * | 1991-11-22 | 1993-07-07 | 日产自动车株式会社 | The control device of loom |
| CN1594697A (en) * | 2004-07-08 | 2005-03-16 | 江西华源江纺有限公司 | Free weft selector controlled by single-chip microcomputer for gripper loom |
| CN101295609A (en) * | 2007-04-24 | 2008-10-29 | 温州三蒙科技电气有限公司 | Circuit protection device for automatically monitoring operation disturbance |
| CN202337863U (en) * | 2011-11-30 | 2012-07-18 | 北京中纺精业机电设备有限公司 | Device for preventing and warning output short circuit of electronic weft selector |
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2011
- 2011-11-30 CN CN 201110391051 patent/CN102493105B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS57205553A (en) * | 1981-06-10 | 1982-12-16 | Tsudakoma Ind Co Ltd | Weft yarn selector of loom |
| CN88203295U (en) * | 1988-02-08 | 1988-11-23 | 浙江丝绸工学院 | Electronic weft selecting system |
| US5095953A (en) * | 1989-07-14 | 1992-03-17 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Computer control of auxiliary weft nozzles in a multi-color jet loom |
| CN1073992A (en) * | 1991-11-22 | 1993-07-07 | 日产自动车株式会社 | The control device of loom |
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| CN101295609A (en) * | 2007-04-24 | 2008-10-29 | 温州三蒙科技电气有限公司 | Circuit protection device for automatically monitoring operation disturbance |
| CN202337863U (en) * | 2011-11-30 | 2012-07-18 | 北京中纺精业机电设备有限公司 | Device for preventing and warning output short circuit of electronic weft selector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036201A (en) * | 2012-12-27 | 2013-04-10 | 苏州弘贸纺织有限公司 | Textile machine mechanical failure positioning system |
| CN104934934A (en) * | 2015-06-24 | 2015-09-23 | 佛山联升压铸科技有限公司 | Short circuit detecting protective device for die-casting machine |
| CN105159058A (en) * | 2015-07-27 | 2015-12-16 | 兖州煤业股份有限公司 | Pilot circuit control method, pilot circuit controller and pilot circuit |
| CN107380207A (en) * | 2017-07-19 | 2017-11-24 | 郑州盛源万通科技有限公司 | Anti-jump method, apparatus and track circuit |
| CN108919032A (en) * | 2018-07-26 | 2018-11-30 | 深圳市宇顺电子股份有限公司 | A kind of Mesh line test circuit and test method |
| CN111596231A (en) * | 2020-05-06 | 2020-08-28 | 上海挚想科技有限公司 | Shared charger power supply line detection system and shared charger power supply line detection method |
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| CN102493105B (en) | 2013-06-12 |
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