CN113089141A - Photoelectric detection circuit for spindle of spinning frame - Google Patents
Photoelectric detection circuit for spindle of spinning frame Download PDFInfo
- Publication number
- CN113089141A CN113089141A CN202110383866.5A CN202110383866A CN113089141A CN 113089141 A CN113089141 A CN 113089141A CN 202110383866 A CN202110383866 A CN 202110383866A CN 113089141 A CN113089141 A CN 113089141A
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- China
- Prior art keywords
- circuit
- power supply
- control circuit
- spinning frame
- photoelectric detection
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
- D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
Abstract
The invention discloses a photoelectric detection circuit of a spinning frame spindle, which comprises: control circuit, power supply circuit, a plurality of signal generation circuit, channel selection circuit, amplifier circuit and comparison circuit, control circuit include main control MCU, and signal generation circuit includes: the photoelectric probe comprises a first power supply control circuit, a second power supply control circuit, a current control circuit and a photoelectric probe. The photoelectric probes are used for monitoring the work of the spindle and generating pulse signals, the channel selection circuits are alternately communicated, and after amplification and comparison, the control circuits are used for alternately detecting, so that the influence of environment and pulse signals generated by other photoelectric probes is reduced, the detection accuracy is improved, the condition that whether the spindle is weakly twisted or broken is found out in time, and the spinning quality is improved.
Description
Technical Field
The invention relates to the field of photoelectric detection, in particular to a photoelectric detection circuit of a spinning frame spindle.
Background
In the textile industry, a photoelectric detection circuit is generally used for detecting and controlling each spindle on a spinning machine, and detecting whether the spindle has weak twist or broken ends, so that the productivity is improved, and the labor cost is saved. However, the distance between the spindle and the spindle on the spinning machine is short, which easily affects the accuracy of the photoelectric detection signal, and the interference signal generated by the motor driving the spindle also affects the accuracy of the photoelectric detection signal. Meanwhile, in the photoelectric detection circuit of the spinning frame on the market at present, a photoelectric coupler in a photoelectric probe of the photoelectric detection circuit is easily influenced by ambient light or indoor light to cause sensitivity reduction, and when light becomes dark or the background becomes shallow, the sensitivity of the probe is also easily reduced. In addition, the number of spindles which operate simultaneously on the spinning machine is large, the production line of the spinning machine is long, the PCB wiring for the photoelectric detection circuit is long, the photoelectric detection signal is easy to interfere, and the photoelectric detection signal is attenuated in the transmission process, so that the accuracy and the sensitivity of the detection signal are influenced.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a photoelectric detection circuit of a spindle of a spinning frame, and solves the problems of low photoelectric detection sensitivity and easy interference on the spindle of the existing spinning frame.
The technical scheme of the invention is as follows: the photoelectric detection circuit of the spindle of the spinning frame comprises: control circuit, power supply circuit, a plurality of signal generation circuit, channel selection circuit, amplifier circuit and comparison circuit, control circuit and power supply circuit, signal generation circuit, channel selection circuit and comparison circuit are connected, signal generation circuit and power supply circuit and channel selection circuit are connected, channel selection circuit and amplifier circuit are connected, amplifier circuit and comparison circuit are connected, control circuit includes master control MCU, signal generation circuit includes: the photoelectric probe is connected with the first power supply control circuit, the second power supply control circuit and the current control circuit, the current control circuit and the second power supply control circuit are connected with the main control MCU, and the first power supply control circuit and the second power supply control circuit are connected with the power supply circuit.
Furthermore, photoelectric probe includes infrared transmitting tube and infrared receiving tube, infrared transmitting tube is connected with first power supply control circuit and current control circuit, infrared receiving tube is connected with second power supply control circuit.
Furthermore, the channel selection circuit is composed of a plurality of groups of multi-channel switches, and each group of multi-channel switches is provided with a plurality of channel switches.
Further, the multi-channel switch adopts a single-ended multi-channel switch.
Further, the single-ended multi-channel switch adopts a chip model of CD 4051.
Further, the multi-channel switch adopts a double-end multi-channel switch.
Further, the chip model of the double-end multi-channel switch is CD 4052.
Furthermore, the comparison circuit comprises a frequency expansion circuit and a comparator, the frequency expansion circuit is connected with the amplifying circuit and the comparator, and the comparator is connected with the main control MCU.
Further, the amplifying circuit comprises a plurality of amplifiers, and the amplifiers are connected with the comparison circuit.
By adopting the scheme, the photoelectric probes are used for monitoring the work of the spindle and generating pulse signals, the channel selection circuits are alternately communicated, and after amplification and comparison, the control circuits are used for alternately detecting, so that the influence of the environment and the pulse signals generated by other photoelectric probes is reduced, the detection accuracy is improved, the condition whether the spindle has weak twist or broken ends is found out in time, and the spinning quality is improved.
Drawings
FIG. 1 is a block diagram of the circuit connections of the present invention.
Fig. 2 is a schematic connection diagram of the control circuit, the power supply circuit and the signal generating circuit.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 and 2, the present invention provides a photoelectric detection circuit for spindles of a spinning frame, including: the device comprises a control circuit, a power supply circuit, a plurality of signal generating circuits, a channel selecting circuit, an amplifying circuit and a comparing circuit, wherein the control circuit is connected with the power supply circuit, the signal generating circuits, the channels are connected with the circuit and the comparing circuit, the signal generating circuits are connected with the power supply circuit and the channel selecting circuit, and the channel selecting circuit is connected with the amplifying circuit which is connected with the comparing circuit. The control circuit comprises a master control MCU, and the signal generating circuit comprises: the photoelectric probe is connected with the first power supply control circuit, the second power supply control circuit and the current control circuit, the current control circuit and the second power supply control circuit are connected with the main control MCU, and the first power supply control circuit and the second power supply control circuit are connected with the power supply circuit.
A steel wire ring is arranged on a spindle of the spinning frame, and a plurality of photoelectric probes are arranged at different positions in the spinning frame, so that a reflection signal of the steel wire ring on the spindle is detected when the spindle rotates, the received reflection signal is converted into a pulse signal, and the pulse signal is transmitted to a channel selection circuit. And the main control MCU of the control circuit controls whether each input end of the channel selection circuit is communicated with the output end, so that the pulse signals pass through the channel selection circuit in a staggered manner. The channel selection circuit transmits the pulse signal to the control circuit and the amplifying circuit in a serial port communication mode, the amplifying circuit amplifies the pulse signal, the pulse signal is sent to the comparison circuit to be compared with the reference level, and the digital signal obtained through comparison is output to the control circuit. The control circuit receives the pulse signal of the channel selection circuit and the digital signal in the comparison circuit, detects and compares the signals, judges whether the photoelectric probe corresponding to the signal works normally according to the comparison result, and controls the power supply strength of the photoelectric probe through the current control circuit to enable the signal generation circuit to output the pulse signal with smaller distortion. And the main control MCU calculates and monitors the rotating speed and the rotating number of each spindle in the spinning frame according to the pulse signals. When the yarn on the spindle of the spinning frame breaks during working, the rotating speed of the steel wire ring is changed, the pulse signal generated by the signal generating circuit is changed, the main control MCU monitors that the pulse signal is abnormal, the control circuit cuts off the feeding and power supply of the spindle in time, the main control MCU automatically recovers and continues to monitor the working condition of the spindle after the abnormal condition is repaired, and therefore the condition that whether the spindle is weakly twisted or broken is found out in time, and the spinning quality is improved.
The photoelectric probe comprises an infrared transmitting tube and an infrared receiving tube, the infrared transmitting tube is connected with a first power supply control circuit and a current control circuit, and the infrared receiving tube is connected with a second power supply control circuit. When the infrared transmitting tube is electrified to emit light, the infrared receiving tube can receive a reflected signal reflected instantly when the steel wire ring rotates, and the infrared receiving tube can be conducted instantly after receiving the reflected signal to generate a pulse signal and transmit the pulse signal to the channel selection circuit.
The channel selection circuit is composed of a plurality of groups of multi-channel switches, and each group of multi-channel switches is provided with a plurality of channel switches. The input end of each channel switch on each group of multi-channel switches can only input a pulse signal generated by a corresponding photoelectric probe, and whether each channel switch is communicated with the output end or not is controlled by generating a unique code through the main control MCU, so that the detection accuracy is improved.
The multi-channel switch may be a single-ended multi-channel switch. The single-ended multi-channel switch adopts a chip with the model number of CD 4051. The single-ended multi-channel switch is provided with a plurality of input ends and only has an output end, can effectively control the break-make of pulse signals, make main control MCU according to the quantity that sets up of multi-channel switch, only detect and compare pulse signals of one or a few way at every turn, the mode that detects in turn has alternately discharged mutual interference between each group of pulse signals, has reduced the consumption and the cost of circuit, guarantees the accuracy that detects.
The multi-channel switch can also adopt a double-end multi-channel switch. The chip model of the double-end multi-channel switch is CD 4052. The double-end multi-channel switch is provided with a plurality of input ends, each input end corresponds to one output end, pulse signals in each path are guaranteed not to be influenced mutually, and the on-off of the pulse signals is controlled effectively, so that the main control MCU only detects and compares one path or a few paths of pulse signals at each time according to the set number of the multi-channel switch, mutual interference among all groups of pulse signals is eliminated in an alternate detection mode, the power consumption and the cost of a circuit are reduced, and the accuracy of detection is guaranteed.
The comparison circuit comprises a frequency expansion circuit and a comparator, the frequency expansion circuit is connected with the amplifying circuit and the comparator, and the comparator is connected with the main control MCU. The frequency expansion circuit receives the pulse signals from the amplifying circuit, the original pulse signals with smaller width are widened, the processed pulse signals are sent to the comparator, the comparator compares the received pulse signals with the reference level, and then digital signals are output and sent to the main control MCU, so that the main control MCU can judge the pulse signals.
The amplifying circuit comprises a plurality of amplifiers, and the amplifiers are connected with the comparison circuit. The amplifier can amplify the pulse signal transmitted from the channel selection circuit so that the comparison circuit can compare the pulse signal.
In summary, the invention monitors the work of the spindle through the photoelectric probe, generates the pulse signal, is alternately communicated by the channel selection circuit, and is alternately detected by the control circuit after amplification and comparison, thereby reducing the influence of the environment and the pulse signal generated by other photoelectric probes, improving the detection accuracy, finding out whether the spindle has weak twist or broken ends in time, and improving the spinning quality.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A photoelectric detection circuit of a spinning frame spindle is characterized by comprising: control circuit, power supply circuit, a plurality of signal generation circuit, channel selection circuit, amplifier circuit and comparison circuit, control circuit and power supply circuit, signal generation circuit, channel selection circuit and comparison circuit are connected, signal generation circuit and power supply circuit and channel selection circuit are connected, channel selection circuit and amplifier circuit are connected, amplifier circuit and comparison circuit are connected, control circuit includes master control MCU, signal generation circuit includes: the photoelectric probe is connected with the first power supply control circuit, the second power supply control circuit and the current control circuit, the current control circuit and the second power supply control circuit are connected with the main control MCU, and the first power supply control circuit and the second power supply control circuit are connected with the power supply circuit.
2. The photoelectric detection circuit of the spindles of the spinning frame according to claim 1, wherein the photoelectric probe comprises an infrared emission tube and an infrared receiving tube, the infrared emission tube is connected with the first power supply control circuit and the current control circuit, and the infrared receiving tube is connected with the second power supply control circuit.
3. The photoelectric detection circuit of the spindles of the spinning frame according to claim 1, wherein the channel selection circuit is composed of a plurality of sets of multi-channel switches, and each set of multi-channel switches is provided with a plurality of channel switches.
4. The photoelectric detection circuit of the spindles of the spinning frame according to claim 3, wherein the multi-channel switch is a single-ended multi-channel switch.
5. The photoelectric detection circuit of the spindles of the spinning frame according to claim 4, wherein the single-ended multi-channel switch adopts a chip model of CD 4051.
6. The photoelectric detection circuit of the spindles of the spinning frame as claimed in claim 3, wherein the multi-channel switch is a two-terminal multi-channel switch.
7. The photoelectric detection circuit of the spindles of the spinning frame as claimed in claim 6, wherein the double-end multi-channel switch adopts a chip model of CD 4052.
8. The photoelectric detection circuit of the spindles of the spinning frame according to claim 1, wherein the comparison circuit comprises a frequency spreading circuit and a comparator, the frequency spreading circuit is connected with the amplifying circuit and the comparator, and the comparator is connected with the main control MCU.
9. The photoelectric detection circuit of the spindles of the spinning frame according to claim 1, wherein the amplification circuit comprises a plurality of amplifiers, and the amplifiers are connected with the comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110383866.5A CN113089141A (en) | 2021-04-09 | 2021-04-09 | Photoelectric detection circuit for spindle of spinning frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110383866.5A CN113089141A (en) | 2021-04-09 | 2021-04-09 | Photoelectric detection circuit for spindle of spinning frame |
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| Publication Number | Publication Date |
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| CN113089141A true CN113089141A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110383866.5A Pending CN113089141A (en) | 2021-04-09 | 2021-04-09 | Photoelectric detection circuit for spindle of spinning frame |
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| CN (1) | CN113089141A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1560274A1 (en) * | 1966-07-29 | 1970-11-19 | Palitex Project Co Gmbh | Double wire machine |
| CN86106403A (en) * | 1986-11-08 | 1988-05-25 | 中央韧皮纤维工业科学研究所 | The device of the method for control spinning machine and this method of enforcement |
| JPH06184841A (en) * | 1992-12-21 | 1994-07-05 | Nisshinbo Ind Inc | Sensor for yarn breakage in spinning frame and method for processing sensed data |
| CN102534896A (en) * | 2012-01-13 | 2012-07-04 | 顾金华 | Yarn twisting broken end detecting method for spinning machine |
| US20120296391A1 (en) * | 2011-05-18 | 2012-11-22 | Greatbatch Ltd. | Measuring Load Impedance with Active Stimulation Pulses in an Implanted Pulse Generator |
| CN103572441A (en) * | 2013-10-24 | 2014-02-12 | 西安工程大学 | Sensor, wireless sensing node and method for spinning running state monitoring |
| WO2014150853A1 (en) * | 2013-03-15 | 2014-09-25 | Inanovate, Inc. | Analyte measurement using longitudinal assay |
| CN205246798U (en) * | 2015-12-22 | 2016-05-18 | 上海新华控制技术(集团)有限公司 | System for on -line measuring speed sensor broken string |
| CN209280946U (en) * | 2018-11-19 | 2019-08-20 | 深圳市嘉友智控科技有限公司 | A kind of photo-electric wire loop motion sensor |
| CN111441115A (en) * | 2020-05-09 | 2020-07-24 | 无锡物联网创新中心有限公司 | Device, method and system for improving effective distance measurement capability of single-spindle detection of ring spinning |
-
2021
- 2021-04-09 CN CN202110383866.5A patent/CN113089141A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1560274A1 (en) * | 1966-07-29 | 1970-11-19 | Palitex Project Co Gmbh | Double wire machine |
| CN86106403A (en) * | 1986-11-08 | 1988-05-25 | 中央韧皮纤维工业科学研究所 | The device of the method for control spinning machine and this method of enforcement |
| JPH06184841A (en) * | 1992-12-21 | 1994-07-05 | Nisshinbo Ind Inc | Sensor for yarn breakage in spinning frame and method for processing sensed data |
| US20120296391A1 (en) * | 2011-05-18 | 2012-11-22 | Greatbatch Ltd. | Measuring Load Impedance with Active Stimulation Pulses in an Implanted Pulse Generator |
| CN102534896A (en) * | 2012-01-13 | 2012-07-04 | 顾金华 | Yarn twisting broken end detecting method for spinning machine |
| WO2014150853A1 (en) * | 2013-03-15 | 2014-09-25 | Inanovate, Inc. | Analyte measurement using longitudinal assay |
| CN103572441A (en) * | 2013-10-24 | 2014-02-12 | 西安工程大学 | Sensor, wireless sensing node and method for spinning running state monitoring |
| CN205246798U (en) * | 2015-12-22 | 2016-05-18 | 上海新华控制技术(集团)有限公司 | System for on -line measuring speed sensor broken string |
| CN209280946U (en) * | 2018-11-19 | 2019-08-20 | 深圳市嘉友智控科技有限公司 | A kind of photo-electric wire loop motion sensor |
| CN111441115A (en) * | 2020-05-09 | 2020-07-24 | 无锡物联网创新中心有限公司 | Device, method and system for improving effective distance measurement capability of single-spindle detection of ring spinning |
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Application publication date: 20210709 |
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