CN202057411U - Detection device for single-cocoon silk reeling machine - Google Patents
Detection device for single-cocoon silk reeling machine Download PDFInfo
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- CN202057411U CN202057411U CN2011201567105U CN201120156710U CN202057411U CN 202057411 U CN202057411 U CN 202057411U CN 2011201567105 U CN2011201567105 U CN 2011201567105U CN 201120156710 U CN201120156710 U CN 201120156710U CN 202057411 U CN202057411 U CN 202057411U
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Abstract
The utility model relates to a detection device for a single-cocoon silk reeling machine. The detection device comprises a piezoceramic transducer unit, a signal amplifier unit, a voltage comparator unit and a controller unit, wherein the piezoceramic transducer unit of the detection device is arranged under the thread guide of the silk reeling machine, the piezoceramic transducer unit senses a vibration signal generated in that cocoon silk passes through the thread guide, and converses the vibration signal into an electrical signal, which is output to the voltage comparator unit via the signal amplifier unit, the voltage comparator unit outputs a detection signal to the controller unit, and when the piezoceramic transducer unit senses no vibration signal generated in that the cocoon silk passes through the thread guide, the piezoceramic transducer unit generates no electrical signal, and no electrical signal is input to the signal amplifier unit, so the voltage comparator unit outputs an end breaking signal to the controller unit.
Description
Technical field
The utility model relates to the reeling machine field, relates generally to the detection technique field of reeling machine.
Background technology
Described reeling machine is that the silk of silk cocoon is extracted out, the part silk cocoon is when the intact silk of reel silk from cocoons or filature break end midway in actual mechanical process, too thin based on silk, and to the not aitiogenic characteristics of electricity, magnetic, light, the broken end that causes conventional contactless detection method not to be suitable for reeling machine detects.
The utility model content
Technical problem to be solved in the utility model provides a kind of pick-up unit of simple grain reeling machine, adopts piezoceramic transducer to detect silk and judges that by the vibration that filar guide produces whether silk breaks end, and controls the operation of reeling machine.
In order to solve the problems of the technologies described above, the utility model discloses a kind of pick-up unit of simple grain reeling machine, wherein, described pick-up unit comprises the piezoceramic transducer unit, the signal amplifier unit, the voltage comparator unit, controller unit, the piezoceramic transducer unit of described pick-up unit is located under the filar guide of reeling machine, the vibration signal that perception silk in piezoceramic transducer unit produces by filar guide, and vibration signal is converted to electric signal exports the voltage comparator unit to through the signal amplifier unit, voltage comparator unit output detection signal is to controller unit, when the piezoceramic transducer unit does not perceive the vibration signal that silk produces by filar guide, the piezoceramic transducer unit can not produce electric signal, do not have electric signal input signal amplifier unit this moment, then voltage comparator unit output broken end signal is to controller unit.
Further, described controller unit comprises switch module and alarm module, when controller unit receives the broken end signal, triggers alarm unit and sends the broken end alarm, and the trigger switch unit disconnects simultaneously, otherwise trigger switch unit closure.
Further, be provided with the integrating circuit unit between described signal amplifier unit and voltage comparator unit, the time constant of described integrating circuit unit is 0.1S.
The utility model adopts piezoceramic transducer detection silk to judge by the vibration that filar guide produces whether silk breaks end, and controls the operation of reeling machine with this, and employing the utility model has the advantages that the detection sensitivity height, the response time is short, circuit is simple and reliable.
Description of drawings
Fig. 1 is the logical organization synoptic diagram of the utility model embodiment pick-up unit;
Fig. 2 is the circuit theory diagrams of the utility model embodiment pick-up unit.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
The utility model embodiment discloses a kind of pick-up unit of simple grain reeling machine, Fig. 1 is the logical organization synoptic diagram of the utility model embodiment pick-up unit, as shown in Figure 1, this pick-up unit comprises piezoceramic transducer unit, signal amplifier unit, voltage comparator unit, controller unit.
Wherein said piezoceramic transducer is a kind of mechanical energy---electric energy is the components and parts of conversion mutually, in the ceramic substrate both sides of described piezoceramic transducer a slice metal level are arranged respectively, are respectively two electrodes of piezoceramic transducer; When two electrodes fed alternating voltage, piezoceramic transducer can be converted into alternate electric energy corresponding mechanical vibration, if vibration frequency in the frequency range that people's ear can contact, then can be listened the sound that sends to vibration, similar loudspeaker; Otherwise if there is oscillation exchange to act on the piezoceramic transducer, piezoceramic transducer then is converted to alternate electric energy with corresponding oscillation exchange, promptly exports corresponding alternating voltage signal between two electrodes.
In the utility model embodiment,, adopt piezoceramic transducer to detect silk and judge by the vibration that filar guide produces whether silk breaks end by the above-mentioned functions of utilization piezoceramic transducer.The piezoceramic transducer unit of wherein said pick-up unit is located under the filar guide of reeling machine, the vibration signal that perception silk in piezoceramic transducer unit produces by filar guide, and vibration signal is converted to electric signal exports the voltage comparator unit to through the signal amplifier unit, voltage comparator unit output detection signal is to controller unit, when the piezoceramic transducer unit does not perceive the vibration signal that silk produces by filar guide, the piezoceramic transducer unit can not produce electric signal, do not have electric signal input signal amplifier unit this moment, then voltage comparator unit output broken end signal is to controller unit.Wherein said controller unit comprises switch module and alarm module, and voltage comparator unit output detection signal is to controller unit trigger switch module and alarm module operation.If the piezoceramic transducer unit does not perceive the vibration signal that filar guide produces, then voltage comparator unit output broken end signal is to controller unit, trigger alarm unit and send the broken end alarm, the trigger switch unit disconnects simultaneously, otherwise then trigger switch unit closure is controlled the motor operating state of reeling machine with this.
Fig. 2 is the circuit theory diagrams of the utility model embodiment pick-up unit, is described in detail below in conjunction with the principle of work of 2 couples of the utility model embodiment of accompanying drawing, as shown in Figure 2:
In the present embodiment, described circuit theory diagrams comprise filtering circuit, signal amplification circuit, detecting circuit, integrating circuit, bleeder circuit, voltage comparator, wherein: the input end of described filtering circuit is connected with the output terminal of piezoceramic transducer unit, the output terminal of filtering circuit is connected with the input end of signal amplification circuit, an output terminal of computing signal amplification circuit is connected with the input end of detecting circuit, another output head grounding of computing signal amplification circuit, the input end of described integrating circuit is connected with the output terminal of detecting circuit, the output terminal of integrating circuit is connected to an input end of voltage comparator, and another input end of voltage comparator is connected to the output terminal of bleeder circuit.
Piezoceramic transducer B receives the vibration signal that silk produces by filar guide, and vibration signal is converted to the alternating voltage signal, filter out the high frequency interference of generations such as electric spark through capacitor C1, and filter out because the low-frequency disturbance of machine vibration generation itself through the filtering circuit that capacitor C2 and inductor L1 form, be amplified to through the signal amplification circuit that resistance R 1 and transistor BG1 form then and export after satisfying the amplitude requirement that the back level handles, and carry out the detection processing via the detecting circuit that diode D1, D2 form.
Wherein the base stage of the transistor BG1 of signal amplification circuit is connected with the output terminal of filtering circuit, the alternating voltage signal after accepting filter; The grounded emitter of described transistor BG1, the collector of described transistor BG1 is connected with resistance R 2.
This alternating voltage signal is after diode D1, D2 detection, and the integrating circuit that input is made up of capacitor C4 and resistance R 3 becomes d. c. voltage signal with the alternating voltage conversion of signals, and with d. c. voltage signal input voltage comparer IC1.The capacitor C4 of wherein said integrating circuit, the time constant of resistance R 3 are set to 0.1S.
The voltage of power supply E is converted to reference voltage via the bleeder circuit that adjustable resistance R4, resistance R 5 forms through dividing potential drop, and with this reference voltage input voltage comparer IC1, is compared by the d. c. voltage signal and the reference voltage of 1 pair of input of voltage comparator ic.In an embodiment of the present utility model, described voltage comparator ic 1 can be made up of NE555.
Just often, this d. c. voltage signal is higher than reference voltage, and then the in-phase output end of voltage comparator ic 1 is exported high level, and driving switch unit J closure continues operation with the control reeling machine and reels off raw silk from cocoons.
If occur broken end sometime, then there is not vibration signal to reach piezoceramic transducer B on the filar guide, at this moment, the d. c. voltage signal of integrating circuit output (about 0.1S) is within a certain period of time reduced to below the reference voltage, then the in-phase output end of voltage comparator ic 1 reverses and output low level, caution alarm unit D3 lights, and driving switch unit J disconnects, and the brake of control reeling machine also stops to receive silk.
In an example of the present utility model, described alarm unit D3 adopts the light emitting diode electronic component; Described switch element adopts relay, it will be understood by those skilled in the art that alarm unit and switch element also can adopt other components and parts with same function and circuit to replace herein.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. the pick-up unit of a simple grain reeling machine, it is characterized in that, described pick-up unit comprises the piezoceramic transducer unit, the signal amplifier unit, the voltage comparator unit, controller unit, the piezoceramic transducer unit of described pick-up unit is located under the filar guide of reeling machine, the vibration signal that perception silk in piezoceramic transducer unit produces by filar guide, and vibration signal is converted to electric signal exports the voltage comparator unit to through the signal amplifier unit, voltage comparator unit output detection signal is to controller unit, when the piezoceramic transducer unit does not perceive the vibration signal that silk produces by filar guide, the piezoceramic transducer unit can not produce electric signal, do not have electric signal input signal amplifier unit this moment, then voltage comparator unit output broken end signal is to controller unit.
2. pick-up unit according to claim 1 is characterized in that described controller unit comprises switch module and alarm module, when controller unit receives the broken end signal, trigger alarm unit and send the broken end alarm, the trigger switch unit disconnects simultaneously, otherwise trigger switch unit closure.
3. pick-up unit according to claim 1 is characterized in that, is provided with the integrating circuit unit between described signal amplifier unit and voltage comparator unit, and the time constant of described integrating circuit unit is 0.1S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201567105U CN202057411U (en) | 2011-05-17 | 2011-05-17 | Detection device for single-cocoon silk reeling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201567105U CN202057411U (en) | 2011-05-17 | 2011-05-17 | Detection device for single-cocoon silk reeling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202057411U true CN202057411U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201567105U Expired - Fee Related CN202057411U (en) | 2011-05-17 | 2011-05-17 | Detection device for single-cocoon silk reeling machine |
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| Country | Link |
|---|---|
| CN (1) | CN202057411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105205953A (en) * | 2014-06-13 | 2015-12-30 | 上海本星电子科技有限公司 | Knock sound identification doorbell |
-
2011
- 2011-05-17 CN CN2011201567105U patent/CN202057411U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105205953A (en) * | 2014-06-13 | 2015-12-30 | 上海本星电子科技有限公司 | Knock sound identification doorbell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20120517 |