CN204455471U - Water jet looms weft yarn signal digital detector - Google Patents
Water jet looms weft yarn signal digital detector Download PDFInfo
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- CN204455471U CN204455471U CN201420801804.7U CN201420801804U CN204455471U CN 204455471 U CN204455471 U CN 204455471U CN 201420801804 U CN201420801804 U CN 201420801804U CN 204455471 U CN204455471 U CN 204455471U
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- weft yarn
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- jet looms
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Abstract
The utility model discloses water jet looms weft yarn signal digital detector, it is characterized in that, comprise photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system; Wherein, photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system are linked in sequence successively.The utility model converts analog signal to data signal, and carries out Intelligent treatment by processing module, can automatic distinguishing weft yarn signal and noise signal, realizes the Intelligent Measurement of weft yarn signal.
Description
Technical field
The utility model relates to water jet looms technical field, particularly water jet looms weft yarn signal digital detector.
Background technology
Weft detector on current water jet looms adopts analog signal processing technology, by detecting weft yarn signal to from the weft yarn signal peak peak value of photoelectric sensor and the comparison circuit of set threshold value.If weft yarn signal peak peak value, higher than set threshold value, is thought and is detected weft yarn.If weft yarn signal peak peak value is lower than set threshold value, think weft yarn crapand or staplings.The degree of accuracy detected is relevant with the adjustment of signal sensitivity and the setting of threshold value.
But this weft yarn signal detector has following technological deficiency and deficiency in production application: 1) accuracy of detection is difficult to ensure: weft examining precision depends on that technical staff is to the experience that signal sensitivity regulates and threshold value sets completely; 2) fabric easily occurs that hand pick forms substandard products: if sensitivity is adjusted too high, and the noise signal in weft yarn broken yarn situation can be amplified, filling broken signal is undetected, and staplings is not shut down, and easily occurs hand pick, makes fabric Quality Down; 3) loom running efficiency is low, and weave output and reduce: if sensitivity is adjusted too low, weft yarn signal is suppressed and weaken, and causes weft yarn signal be not detected and occur that loom sky stops, reduces the running efficiency of loom, have impact on and weave output and production efficiency; 4) high to water spray water quality requirement: when water spray cleanliness factor is low, weft yarn signal strength weakening, after together with mixing with noise signal, the discrimination of weft yarn signal and noise signal reduces, and easily causes staplings not stop to stop with sky.Therefore, require high to the purified treatment of recycle-water, increase production cost.
Summary of the invention
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art and provides water jet looms weft yarn signal digital detector, the utility model converts analog signal to data signal, and carry out Intelligent treatment by processor of single chip computer, can automatic distinguishing weft yarn signal and noise signal, realize the Intelligent Measurement of weft yarn signal.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
According to the water jet looms weft yarn signal digital detector that the utility model proposes, comprise photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system; Wherein, photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system are linked in sequence successively.
As the scheme that water jet looms weft yarn signal digital detector of the present utility model is further optimized, described processing module is processor of single chip computer.
As the scheme that water jet looms weft yarn signal digital detector of the present utility model is further optimized, described photoelectric sensor is FGL 5-R-PSM3 photoelectric sensor.
As the scheme that water jet looms weft yarn signal digital detector of the present utility model is further optimized, described processor of single chip computer is AT89S51 single-chip microcomputer.
As the scheme that water jet looms weft yarn signal digital detector of the present utility model is further optimized, described A/D sampling module is AD7705 chip.
As the scheme that water jet looms weft yarn signal digital detector of the present utility model is further optimized, described analog signal conditioner module comprises voltage follower and amplifier buffer circuit.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
(1) need not any artificial setting, break away from the dependence of the technical experience to people, weft examining precision is guaranteed: current weft detector, because employing Analogical Circuit Technique, therefore, when weaving different cultivars, need to rely on the experience of people to adjust the parameter such as start-stop angle, signal sensitivity, threshold value of weft yarn signal detection.Accuracy of detection depends on the setting of these parameters completely, depends on the technical experience of people;
(2) improve spy latitude accuracy of detection, decrease the wrong machine stop times of loom: the weft detector on the water jet looms that industry is all at present all realizes based on analog signal processing technology and analog comparator, low to the accuracy of identification of weft yarn signal, directly cause visiting latitude precision low, loom sky stops and to leak the wrong machine stop times stopped many; The utility model have employed the Intelligent Measurement that Digital Signal Processing realizes weft yarn signal originally, overcome traditional analog signal comparison circuit method easily by external environmental noise interference and the defect not having Intelligent Recognition ability, improve and visit latitude accuracy of detection, the sky decreasing loom stops and leaks the wrong machine stop times stopped;
(3) improve and weave seed output and quality: weft yarn normally and not detects that the probability of weft yarn declines, loom sky stops number of times and reduces, running efficiency improves, improve and weave output, weft yarn staplings and undetected probability declines to a great extent, effectively can avoid the non-stop-machine possibility of staplings, avoid the substandard products that weaving goods occur because of hand pick;
(4) reduce water spray purity requirements, water spray can be recycled, and decreases cost of sewage disposal and quantity of wastewater effluent: the utility model carries out digitlization and Weigh sensor to weft yarn signal; Water spray cleanliness factor low, weft yarn signal and noise signal discrimination low time, still can accurately distinguish weft yarn signal and noise signal, to water spray purity requirements reduce.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
Be schematic diagram of the present utility model as shown in Figure 1, water jet looms weft yarn signal digital detector, comprises photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system; Wherein, photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system are linked in sequence successively.
Described processing module is processor of single chip computer.Described photoelectric sensor is FGL 5-R-PSM3 photoelectric sensor.Described processor of single chip computer is AT89S51 single-chip microcomputer.Described A/D sampling module is AD7705 chip.Described analog signal conditioner module comprises voltage follower and amplifier buffer circuit.
To weft yarn signal, not detect based on the comparison circuit of analog signal, but convert analog signal to data signal, and carry out Intelligent treatment by processor of single chip computer, by to the statistical analysis of weft yarn signal and noise signal and pattern learning, automatic distinguishing weft yarn signal and noise signal, realize the Intelligent Measurement of weft yarn signal.
The utility model is based on Digital Signal Processing, realizes the Intelligent Measurement to visiting weft yarn signal.Whole equipment comprises parts compositions such as weft yarn signal condition, A/D digital sample, digitized bands pass filter and processor of single chip computer.
Analog signal conditioner module is to from the weft yarn signal of photoelectric sensor or the preliminary treatment without noise signal during weft yarn, comprise voltage follower and amplifier buffer circuit, collected spy latitude signal is carried out signal amplification according to A/D modular converter parameter, and control within the scope of certain voltage, realize signal isolation with external electrical, ensure the reliability of signal system.
After analog signal conditioner process, signal is input to A/D sampling module, carries out A/D conversion, convert analog signal to data signal to the weft yarn signal after conditioning.
Data signal after A/D sampling, carries out filtering process by digital band-pass filter, filters out the invalid components in weft yarn signal, comprise invalid low-band signal and high frequency band signal, the signal component of the intermediate bands remained with.
Processor of single chip computer carries out statistical analysis and pattern learning to the weft yarn signal after digital filtering or noise signal, is got off by both schematic memories, and according to both differences, automatic distinguishing weft yarn signal and noise signal, realize the Intelligent Measurement of weft yarn signal.Weft examining result exports to loom master control system the most at last, controls running and the shutdown of loom.
Claims (6)
1. water jet looms weft yarn signal digital detector, is characterized in that, comprises photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system; Wherein, photoelectric sensor, analog signal conditioner module, A/D sampling module, digital band pass filtration module, processing module, loom master control system are linked in sequence successively.
2. water jet looms weft yarn signal digital detector according to claim 1, it is characterized in that, described processing module is processor of single chip computer.
3. water jet looms weft yarn signal digital detector according to claim 1, is characterized in that, described photoelectric sensor is FGL 5-R-PSM3 photoelectric sensor.
4. water jet looms weft yarn signal digital detector according to claim 2, it is characterized in that, described processor of single chip computer is AT89S51 single-chip microcomputer.
5. water jet looms weft yarn signal digital detector according to claim 1, it is characterized in that, described A/D sampling module is AD7705 chip.
6. water jet looms weft yarn signal digital detector according to claim 1, it is characterized in that, described analog signal conditioner module comprises voltage follower and amplifier buffer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801804.7U CN204455471U (en) | 2014-12-16 | 2014-12-16 | Water jet looms weft yarn signal digital detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801804.7U CN204455471U (en) | 2014-12-16 | 2014-12-16 | Water jet looms weft yarn signal digital detector |
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| Publication Number | Publication Date |
|---|---|
| CN204455471U true CN204455471U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420801804.7U Expired - Fee Related CN204455471U (en) | 2014-12-16 | 2014-12-16 | Water jet looms weft yarn signal digital detector |
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| CN (1) | CN204455471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201594A (en) * | 2016-03-16 | 2017-09-26 | 株式会社丰田自动织机 | The weft detection and weft examining device of jet loom |
| CN113403731A (en) * | 2021-06-29 | 2021-09-17 | 山东日发纺织机械有限公司 | Weft detection device and system |
-
2014
- 2014-12-16 CN CN201420801804.7U patent/CN204455471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201594A (en) * | 2016-03-16 | 2017-09-26 | 株式会社丰田自动织机 | The weft detection and weft examining device of jet loom |
| CN107201594B (en) * | 2016-03-16 | 2018-11-20 | 株式会社丰田自动织机 | The weft detection and weft examining device of jet loom |
| CN113403731A (en) * | 2021-06-29 | 2021-09-17 | 山东日发纺织机械有限公司 | Weft detection device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20161216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |