CN109989162B - Output-selectable and adjustable high-speed loom warp tension transducer - Google Patents
Output-selectable and adjustable high-speed loom warp tension transducer Download PDFInfo
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- CN109989162B CN109989162B CN201910390676.9A CN201910390676A CN109989162B CN 109989162 B CN109989162 B CN 109989162B CN 201910390676 A CN201910390676 A CN 201910390676A CN 109989162 B CN109989162 B CN 109989162B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
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- 239000003985 ceramic capacitor Substances 0.000 description 2
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Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
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Abstract
The invention discloses a warp tension transducer of a high-speed loom, which has an adjustable output, and comprises a power circuit, a sensor signal amplifying circuit, an output signal converting circuit, an input terminal, an output terminal and an output selecting terminal; the input terminal is connected with the tension sensor; the input terminal is connected with the sensor signal amplifying circuit; the sensor signal amplifying circuit is connected with an output selection end of the output selection terminal; the current output selection end of the output selection terminal is connected with the output signal conversion circuit, and the voltage output selection end of the output selection terminal is connected with the voltage output end Vout of the output terminal; the output signal conversion circuit is connected with a current output end Iout2 of the output terminal. The output form of the transmitter can be adjusted and converted through the jumper, and the output selection end of the output selection terminal is used for realizing jumper selection, so that the transmitter is convenient and quick. In case of large disturbances, the current output may be selected. At the time of the disturbance, the voltage can be directly output.
Description
Technical Field
The invention relates to the field of loom tension detection, in particular to a warp tension transducer of a high-speed loom, which can be selectively and adjustably output.
Background
In the working process of the loom, the detection of the warp tension is extremely important, and inaccurate tension detection can cause warp breakage to stop, so that the production efficiency is affected. Currently, tension detection is mainly detected by beam tension sensors, and sensor output signals are converted into standard voltage or current signals by tension transducers to be output, so that a controller receives the tension signals. However, the existing tension transducer is generally simple in voltage output or current output, and cannot adjust the voltage and current output according to specific needs. The document of application number 201810386846.1 discloses a tension transducer for a pole and tower wire tension measuring instrument, wherein the circuit of the tension transducer has the advantages of high gain, zero drift calibration, strong anti-interference performance and the like, but the output is single, and only voltage signals can be output.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the high-speed loom warp tension transducer with selectable and adjustable output.
The invention solves the technical problems by providing a high-speed loom warp tension transducer with selectable and adjustable output, which is characterized by comprising a power supply circuit, a sensor signal amplifying circuit, an output signal converting circuit, an input terminal, an output terminal and an output selecting terminal; the input terminal is connected with the tension sensor; the signal input end IN+ and the signal input end IN-of the input terminal are respectively connected with the sensor signal amplifying circuit; the sensor signal amplifying circuit is connected with an output selection end of the output selection terminal; the current output selection end of the output selection terminal is connected with the output signal conversion circuit, and the voltage output selection end of the output selection terminal is connected with the voltage output end Vout of the output terminal; the output signal conversion circuit is connected with a current output end Iout2 of the output terminal; the current output end Iout1 of the output terminal is connected with the power supply input end VCC of the input terminal; when the current output is selected, a resistor for voltage reduction is connected in series between the current output end Iout1 and the current output end Iout2 of the output terminal; the power supply module and the output signal conversion circuit are powered by a power supply input end VCC of the input terminal and a power supply ground; the sensor signal amplifying circuit is powered by the power supply module and the power supply input end VCC of the input terminal.
Compared with the prior art, the invention has the beneficial effects that:
1. the output form of the transmitter can be adjusted and converted through the jumper, and the output selection end pin of the output selection terminal is used for realizing jumper selection, so that the transmitter is convenient and quick. In case of large disturbances, the current output may be selected. At the time of the disturbance, the voltage can be directly output.
2. According to different input requirements, the output voltage and the output current of the transmitter can be adjusted through a precise adjustable potentiometer.
3. The adaptive input range is large, the adaptive input range can be matched with a plurality of tension sensors with different measuring ranges, and the amplification factor can be adjusted according to the size of the input signal of the sensor.
Drawings
FIG. 1 is a flow chart illustrating the operation of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power circuit according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a sensor signal amplification circuit according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of an output signal conversion circuit according to an embodiment of the present invention;
Detailed Description
Specific examples of the present invention are given below. The specific examples are provided only for further elaboration of the invention and do not limit the scope of the claims of the present application.
The invention provides a warp tension transducer (transducer is referred to as 1-4 for short) of a high-speed loom with optional and adjustable output, which is characterized by comprising a power supply circuit 1, a sensor signal amplifying circuit 2, an output signal converting circuit 3, an input terminal 4, an output terminal 5 and an output selecting terminal 6; the input terminal 4 is connected with a tension sensor; the signal input end IN+ and the signal input end IN-of the input terminal 4 are respectively connected with an IN+ pin and an IN-pin of the sensor signal amplifying circuit 2; the sensor signal amplifying circuit 2 is connected with an output selection end of the output selection terminal 6; the current output selection end of the output selection terminal 6 is connected with the output signal conversion circuit 3, and the voltage output selection end of the output selection terminal 6 is connected with the voltage output end Vout of the output terminal 5; the output signal conversion circuit 3 is connected with a current output end Iout2 of the output terminal 5; the current output end Iout1 of the output terminal 5 is connected with the power supply input end VCC of the input terminal 4; when current output is selected, a resistor for voltage reduction is connected in series between the current output end Iout1 and the current output end Iout2 of the output terminal 5 according to requirements, so that voltage difference v=i×r exists at two ends of the resistor after current passes through the resistor; the power supply module 1 and the output signal conversion circuit 3 are powered by a power supply input end VCC of the input terminal 4 and a power supply ground; the sensor signal amplifying circuit 2 is powered by the VOUT pin of the power module 1 and the power input VCC of the input terminal 4.
The power supply circuit 1 consists of a voltage converter and peripheral circuits thereof; the sensor signal amplifying circuit 2 consists of an instrument amplifier and a peripheral circuit thereof; the output signal conversion circuit 3 is composed of an operational amplifier and a peripheral circuit thereof; the input terminal 4 comprises four pins, specifically a power supply input end VCC, a signal input end IN+, a signal input end IN-and a power supply ground; the output terminal 5 comprises four pins, namely a current output end Iout1, a current output end Iout2, a voltage output end Vout and a power supply ground; the output selection terminal 6 comprises three pins, namely an output selection end, a current output selection end and a voltage output selection end; the voltage converter adopts an ICL7662 chip; the instrument amplifier adopts an AD624 chip; the operational amplifier adopts an LM324 chip;
the V+ pin of the voltage converter is connected with the power input end VCC of the input terminal 4, and is connected with the ceramic capacitor C4 in series and then grounded; the CAP+ pin of the voltage converter is connected with the positive electrode of the electrolytic capacitor C1, and the CAP-pin of the voltage converter is connected with the negative electrode of the electrolytic capacitor C1; the GND pin of the voltage converter is grounded; after the electrolytic capacitor C2 is connected with the ceramic capacitor C3 in parallel, the negative electrode of the electrolytic capacitor C2 is connected with the VOUT pin of the voltage converter, and the positive electrode is grounded; the other pins are empty;
the signal input end IN+ and the signal input end IN of the input terminal 4 are connected with differential signals of the tension sensor; the IN+ pin and the IN-pin of the instrumentation amplifier are respectively connected with a signal input end IN+ and a signal input end IN-of the input terminal 4; one end of the gain adjusting resistor R2 is connected with the RG2 pin of the instrumentation amplifier, and the other end of the gain adjusting resistor R2 is connected with the RG1 pin (in the embodiment, one end of the gain adjusting resistor R2 is connected with the RG2 pin of the instrumentation amplifier, and the resistance adjusting resistor is connected with the RG1 pin); the zero-setting resistor R1 is connected in series between the two INPUT NULL pins, the resistor is connected with the power INPUT end VCC of the INPUT terminal 4 in a regulating mode, the power INPUT end VCC of the INPUT terminal 4 in a regulating mode is used for changing the position of the resistor, and the voltage division of the power INPUT end VCC of the INPUT terminal 4 on the two pins can be regulated, so that the purpose of zero setting is achieved; the Ref pin of the instrument amplifier is grounded; the +Vs pin of the instrumentation amplifier is connected with the power input end VCC of the input terminal 4, and the-Vs pin is connected with the VOUT pin of the voltage converter; the OUT pin of the instrument amplifier is connected with the SENSE pin of the instrument amplifier, and then a filter resistor R7 is connected in series; the filter resistor R7 is connected with an output selection end of the output selection terminal 6, and then connected with the filter capacitor C5 in parallel, and the filter capacitor C5 is grounded;
two ends of the output resistor R5 are respectively connected with an OUT1 pin of the operational amplifier and a base electrode of the triode Q1 in series; two ends of the negative feedback resistor R4 are respectively connected with an emitter of the triode Q1 and an IN 1-pin of the operational amplifier IN series; the collector electrode of the triode Q1 is connected with a current output end Iout2 of the output terminal 5; two ends of the input resistor R3 are respectively connected with an In1+ pin of the operational amplifier and a current output selection end of the output selection terminal 6 IN series; one end of the output current adjusting resistor R6 is grounded, and the other end of the output current adjusting resistor R6 is connected with the emitter of the triode Q1 (in the embodiment, one end of the output current adjusting resistor R6 is grounded, and the resistor adjusting resistor is connected with the emitter of the triode Q1); the VCC pin of the operational amplifier is connected with the power input end VCC of the input terminal 4, and the GND pin is grounded; the other pins are empty;
the current output end Iout1 of the output terminal 5 is connected with the power supply input end VCC of the input terminal 4; when current output is selected, a resistor for voltage reduction is connected in series between the current output end Iout1 and the current output end Iout2 of the output terminal 5 according to requirements, so that voltage difference v=i×r exists at two ends of the resistor after current passes through the resistor; the voltage output end Vout of the output terminal 5 is connected with the voltage output selection end of the output selection terminal 6; all power supply grounds and chip ground pins are commonly grounded;
the power supply module 1 and the output signal conversion circuit 3 are powered by a power supply input end VCC of the input terminal 4 and a power supply ground; the sensor signal amplifying circuit 2 is powered by the VOUT pin of the power module 1 and the power input VCC of the input terminal 4.
The zero-setting resistor R1 and the gain adjusting resistor R2 are precision adjustable potentiometers with resistance value of 10K; the input resistor R3 and the filter resistor R7 are 10K chip resistors, and the negative feedback resistor R4 and the output resistor R5 are 1K chip resistors; the output current adjusting resistor R6 is a precision adjustable potentiometer with a resistance value of 2K; electrolytic capacitor C1 and electrolytic capacitor C2 are 10 μF electrolytic capacitors, and tile capacitors C3 and C4 are 4.7 μF tile capacitors; the filter capacitor C5 is a ceramic chip capacitor of 1 mu F; the triode Q1 is an NPN triode;
the tension transducer is suitable for a tension sensor which outputs differential signals and the output signals are in linear relation with the applied tension. In use, the power ground of the tension transducer is common to the power ground of the tension sensor.
The working principle and the working flow of the invention are as follows:
principle of: the differential signal of the tension sensor is inputted through the signal input end IN+ and the signal input end IN-of the input terminal 4, amplified and filtered by the sensor signal amplifying circuit 2, and if the output selection end of the output selection terminal 6 is connected with the voltage output selection end by the jumper, the voltage signal is outputted by the voltage output end Vout of the output terminal 5. If the output selection terminal and the current output selection terminal of the output selection terminal 6 are connected by the jumper, the signal is converted into a current signal by the output signal conversion circuit 3, and is outputted by the current output terminal Iout1 of the output terminal 5 and the current output terminal Iout2 of the output terminal 5. When the current output is selected, a resistor (voltage drop is generated by the resistor) is connected in series between the current output terminal Iout1 and the current output terminal Iout2 of the output terminal 5 as required, and the current flows from the current output terminal Iout1 of the output terminal 5 to the current output terminal Iout2 of the output terminal 5 through the connected resistor.
The flow is as follows: when the tension sensor is in use, zero setting is firstly carried out, when the tension sensor is in idle load, the position of the resistance adjusting end of the zero setting resistor R1 is adjusted, the resistance between the resistance adjusting end and two INPUT NULL pins is changed, the voltage between the output selecting end of the output selecting terminal 6 and the power supply ground is detected through equipment such as a universal meter, and zero setting is successful when the voltage is detected to be 0V. The zeroing resistor R1 is then kept unchanged.
When the transmission distance of the signal is short, the voltage signal is suitably used, and the output selection terminal of the output selection terminal 6 is connected with the voltage output selection terminal of the output selection terminal 6 by a jumper, so that the voltage output can be selected. When the signal transmission distance is longer and current output is suitable to be used, the output selection end of the output selection terminal 6 is connected with the current output selection end of the output selection terminal 6 through a jumper wire, and a current signal can be output between the current output end Iout1 of the output terminal 5 and the current output end Iout2 of the output terminal 5;
the gain level of the instrumentation amplifier may be adjusted based on the load, i.e., the output of the tension sensor, so that the output signal is within a suitable range. The output voltage is vout= [ (in+) - (IN-) ] ×g, where Vout is the voltage between the voltage output terminal Vout and the power supply ground, in+ is the voltage between the signal input terminal in+ of the input terminal 4 and the power supply ground, IN-is the voltage between the signal input terminal IN-of the input terminal 4 and the power supply ground, and G is the gain of the instrumentation amplifier.
The gain of the instrument amplifier can be adjusted by adjusting the position of the resistance adjusting end of the gain adjusting resistor R2, so that the output voltage is adjusted, and the formula is R 2 =40000/(G-1), where G is the gain of the instrumentation amplifier, R 2 The effective resistance between the RG1 pin and the RG2 pin of the instrumentation amplifier is connected for the gain adjustment resistor R2. The output current adjusting resistor R6 can adjust the output current, and the formula is I=Vout/R 6 . Wherein I is the current flowing between the current output terminal Iout1 of the output terminal 5 and the current output terminal Iout2 of the output terminal 5, vout is the voltage between the voltage output terminal Vout and the power ground, R 6 The resistor R6 is connected to the effective resistor between the transistor Q1 and the power ground for the output current. Meanwhile, the gain adjusting resistor R2 and the output current adjusting resistor R6 can be adjusted more flexibly to adjust the output current.
The invention is applicable to the prior art where it is not described.
Claims (5)
1. The warp tension transducer of the high-speed loom with the adjustable output is characterized by comprising a power supply circuit, a sensor signal amplifying circuit, an output signal converting circuit, an input terminal, an output terminal and an output selection terminal; the input terminal is connected with the tension sensor; the signal input end IN+ and the signal input end IN-of the input terminal are respectively connected with the sensor signal amplifying circuit; the sensor signal amplifying circuit is connected with an output selection end of the output selection terminal; the current output selection end of the output selection terminal is connected with the output signal conversion circuit, and the voltage output selection end of the output selection terminal is connected with the voltage output end Vout of the output terminal; the output signal conversion circuit is connected with a current output end Iout2 of the output terminal; the current output end Iout1 of the output terminal is connected with the power supply input end VCC of the input terminal; when the current output is selected, a resistor for voltage reduction is connected in series between the current output end Iout1 and the current output end Iout2 of the output terminal; the power supply module and the output signal conversion circuit are powered by a power supply input end VCC of the input terminal and a power supply ground; the sensor signal amplifying circuit is powered by the power supply module and the power supply input end VCC of the input terminal.
2. The warp tension transducer for high-speed loom with adjustable output according to claim 1, wherein the power circuit consists of a voltage converter and its peripheral circuit; the sensor signal amplifying circuit consists of an instrument amplifier and a peripheral circuit thereof; the output signal conversion circuit consists of an operational amplifier and a peripheral circuit thereof; the input terminal comprises a power supply input end VCC, a signal input end IN+, a signal input end IN-and a power supply ground; the output terminal comprises a current output end Iout1, a current output end Iout2, a voltage output end Vout and a power ground; the output selection terminal comprises an output selection end, a current output selection end and a voltage output selection end; the voltage converter adopts an ICL7662 chip; the instrument amplifier adopts an AD624 chip; the operational amplifier adopts an LM324 chip;
the V+ pin of the voltage converter is connected with the power input end VCC of the input terminal, and is grounded after being connected with the capacitor C4 in series; the CAP+ pin of the voltage converter is connected with the positive electrode of the capacitor C1, and the CAP-pin of the voltage converter is connected with the negative electrode of the capacitor C1; the GND pin of the voltage converter is grounded; after the capacitor C2 is connected with the capacitor C3 in parallel, the negative electrode of the capacitor C2 is connected with the VOUT pin of the voltage converter, and the positive electrode is grounded; the other pins are empty;
the signal input end IN+ and the signal input end IN-of the input terminal are connected with the tension sensor; the IN+ pin and the IN-pin of the instrumentation amplifier are respectively connected with a signal input end IN+ and a signal input end IN-of the input terminal; one end of the resistor R2 is connected with an RG2 pin of the instrumentation amplifier, and the other end is connected with an RG1 pin; the resistor R1 is connected in series between the two INPUT NULL pins, and the resistor is connected with the power supply INPUT end VCC of the INPUT terminal in a regulating mode; the Ref pin of the instrument amplifier is grounded; the +Vs pin of the instrument amplifier is connected with the power input end VCC of the input terminal, and the-Vs pin is connected with the VOUT pin of the voltage converter; the OUT pin of the instrument amplifier is connected with the SENSE pin of the instrument amplifier, and then a resistor R7 is connected in series; the resistor R7 is connected with an output selection end of the output selection terminal, then connected with the capacitor C5 in parallel, and the capacitor C5 is grounded;
two ends of the resistor R5 are respectively connected with an OUT1 pin of the operational amplifier and a base electrode of the triode Q1 in series; two ends of the resistor R4 are respectively connected with an emitter of the triode Q1 and an IN 1-pin of the operational amplifier IN series; the collector electrode of the triode Q1 is connected with a current output end Iout2 of the output terminal; two ends of the resistor R3 are respectively connected with an IN < 1+ > pin of the operational amplifier and a current output selection end of the output selection terminal IN series; one end of the resistor R6 is grounded, and the other end of the resistor R is connected with the emitter of the triode Q1; the VCC pin of the operational amplifier is connected with the power input end VCC of the input terminal, and the GND pin is grounded; the other pins are empty;
all power supply grounds and chip ground pins are commonly grounded;
the power supply module and the output signal conversion circuit are powered by a power supply input end VCC of the input terminal and a power supply ground; the sensor signal amplifying circuit is powered by the VOUT pin of the power module and the power input end VCC of the input terminal.
3. The warp tension transducer of the high-speed loom with the adjustable output according to claim 2, wherein the resistor R1 and the resistor R2 are precision adjustable potentiometers with the resistance value of 10K; the resistor R3 and the resistor R7 are 10K chip resistors, and the resistor R4 and the resistor R5 are 1K chip resistors; the resistor R6 is a precision adjustable potentiometer with a resistance value of 2K; the capacitor C1 and the capacitor C2 are electrolytic capacitors with the capacitance of 10 mu F, and the capacitors C3 and C4 are ceramic chip capacitors with the capacitance of 4.7 mu F; the capacitor C5 is a ceramic chip capacitor of 1 mu F; the triode Q1 is an NPN triode.
4. The warp tension transducer for high-speed loom with adjustable output according to claim 2, wherein the resistor R2 is connected with the RG2 pin of the instrumentation amplifier, and the resistor adjusting is connected with the RG1 pin.
5. The warp tension transducer of high-speed loom with adjustable output according to claim 2, characterized in that the resistor R6 is grounded at one end and the resistor adjusting terminal is connected to the emitter of the transistor Q1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390676.9A CN109989162B (en) | 2019-05-10 | 2019-05-10 | Output-selectable and adjustable high-speed loom warp tension transducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910390676.9A CN109989162B (en) | 2019-05-10 | 2019-05-10 | Output-selectable and adjustable high-speed loom warp tension transducer |
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| Publication Number | Publication Date |
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| CN109989162A CN109989162A (en) | 2019-07-09 |
| CN109989162B true CN109989162B (en) | 2024-02-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627023Y (en) * | 2003-06-11 | 2004-07-21 | 常州市第八纺织机械厂 | Tension control device for beaming machine |
| CN201259454Y (en) * | 2008-09-09 | 2009-06-17 | 南京中船绿洲机器有限公司 | Annular constant tension sensor of electric mooring winch |
| CN201614445U (en) * | 2010-01-27 | 2010-10-27 | 华南理工大学 | Automatic control device for creel tension of warping machine |
| CN210506685U (en) * | 2019-05-10 | 2020-05-12 | 江苏科瑞德智控自动化科技有限公司 | High-speed loom warp tension transmitter with optional and adjustable output |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6977489B2 (en) * | 2003-01-10 | 2005-12-20 | Intersil Americas, Inc | Multiphase converter controller using single gain resistor |
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2019
- 2019-05-10 CN CN201910390676.9A patent/CN109989162B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627023Y (en) * | 2003-06-11 | 2004-07-21 | 常州市第八纺织机械厂 | Tension control device for beaming machine |
| CN201259454Y (en) * | 2008-09-09 | 2009-06-17 | 南京中船绿洲机器有限公司 | Annular constant tension sensor of electric mooring winch |
| CN201614445U (en) * | 2010-01-27 | 2010-10-27 | 华南理工大学 | Automatic control device for creel tension of warping machine |
| CN210506685U (en) * | 2019-05-10 | 2020-05-12 | 江苏科瑞德智控自动化科技有限公司 | High-speed loom warp tension transmitter with optional and adjustable output |
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