CN201056654Y - Laser type dynamic yarn prober - Google Patents
Laser type dynamic yarn prober Download PDFInfo
- Publication number
- CN201056654Y CN201056654Y CNU2007200229393U CN200720022939U CN201056654Y CN 201056654 Y CN201056654 Y CN 201056654Y CN U2007200229393 U CNU2007200229393 U CN U2007200229393U CN 200720022939 U CN200720022939 U CN 200720022939U CN 201056654 Y CN201056654 Y CN 201056654Y
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- circuit
- laser
- yarn
- dynamic
- resistance
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Abstract
A dynamic laser yarn detector comprises a shell in which a transmitting component, a receiving component, a signal-processing circuit board, and a signal lamp are arranged. The transmitting component is a laser diode; the receiving component is a laser-receiving triode; the output end of the laser-receiving triode is connected with a dynamic voltage follow-up circuit; the dynamic voltage follow-up circuit is connected with a comparison amplifying circuit; the output end of the comparison amplifying circuit is connected with the signal lamp and the output circuit. The utility model has a strong resistance to external interferences and effectively avoids such faults as failure to actuate in case of broken yarn or spinning malfunction. The utility model has a simple structure, low manufacture cost, reliability and good duration.
Description
Technical field:
The utility model relates to the dynamic yarn detector of a kind of laser type
Background technology:
Similar products at home and abroad limits because of environment for use at present, broken yarn often occurs and is failure to actuate, and the anomaly of yarn misoperation is arranged, and its main cause is to be vulnerable to humidity in the yarn detection process, and knitting wool dust and extraneous light disturb.Slow movement in the process, the tail yarn was oversize when broken yarn was handled, and this not only can influence the product quality that is detected yarn, also brings many troubles to the operator.
Summary of the invention:
The purpose of this utility model provides the dynamic yarn detector of a kind of laser type, has overcome the said goods drawback, and the laser pick-off frequency spectrum is single, and light has very strong antijamming capability to external world, has effectively avoided broken yarn to be failure to actuate, and the anomaly of yarn misoperation is arranged.
The purpose of this utility model realizes as follows: the dynamic yarn detector of laser type, emission element, receiving-member, signal processing circuit board, signal lamp are housed in housing, emission element is a laser diode, receiving-member is the laser pick-off triode, the output termination dynamic electric voltage follow circuit of laser pick-off triode, the dynamic electric voltage follow circuit connects the comparison amplifying circuit, relatively the output termination signal lamp and the output circuit of amplifying circuit.
Dynamic electric voltage follow circuit and comparison amplifying circuit are made of operational amplifier.
Adopt three grades of relatively amplifying circuits.
Adopt monomer structure, independent assortment is applicable to the detection of multichannel yarn path during application, the signal of multiplexed detection and meter counter control box organic assembling, scarce burst of (be commonly called as and run single thread) phenomenon when having prevented the operation of multiply yarn effectively.
This detector adopts at present at communications industry widely used import high-quality Laser Devices and integrated operational amplifier circuit, sphere group's dress correlation, adopt two sphere symmetry laser channelings, detection range is short, make the two spheres of Yarn filoplume automatically cleaning in motion process, guarantee the unimpeded of laser channeling, reduce the cleaning work amount.It is simple in structure, and is with low cost, reliability and durability, cooperates meter counter control box and outside executing agency to realize the accurate control of tail yarn 0mm.
Description of drawings:
Accompanying drawing is the circuit diagram of the dynamic yarn detector of the utility model laser type.
The specific embodiment:
The dynamic yarn detector of this laser type is equipped with emission element, receiving-member, signal processing circuit board, signal lamp in housing, above mechanical structure and prior art are roughly the same, does not do concrete introduction.Be characterized in: emission element is a laser diode, receiving-member is the laser pick-off triode, the output termination dynamic electric voltage follow circuit of laser pick-off triode, the dynamic electric voltage follow circuit connects the comparison amplifying circuit, the dynamic electric voltage follow circuit connects the comparison amplifying circuit and is made of operational amplifier, relatively amplifying circuit is three grades, relatively the output termination signal lamp and the output circuit of amplifying circuit.With reference to accompanying drawing, concrete structure and operation principle are as follows:
1, power lamp is made up of current limliting electricity resistance R 1 and red light emitting diodes D1.
2, resistance R 2 and laser diode D2 form the laser beam radiating circuit, the resistance value of current-limiting circuit R2 has determined the emissive porwer of laser diode D2 light beam, dispose the resistance value of current-limiting resistance R2 according to different yarn varieties, the laser beam that makes laser diode D2 is in optimum Working.
3, current-limiting resistance R3 and laser pick-off triode Q1 composition laser beam is accepted circuit, when vibration chamber does not have yarn and passes through, the potential balance environment that laser channeling is in emission and accepts, at the C utmost point pulse free signal of laser pick-off triode Q1, partiting dc capacitor C1 and resistance R 5 do not have signal output; When vibration chamber has dynamic yarn to pass through, because of yarn vibration, broken the balance environment of laser channeling, produced faint fluctuating signal at the C of laser pick-off triode Q1 on extremely, this fluctuating signal sends the signal follow circuit of being made up of operational amplifier A to by partiting dc capacitor C1 and resistance R 5.
4, operational amplifier A and resistance R 6 have been formed the dynamic electric voltage follow circuit, resistance R 4 and resistance R 11 offer operational amplifier A+voltage reference by the dividing potential drop between power supply VCC and the GND, and R6 is as feedback resistance, when operational amplifier A-pulse free voltage was imported, its output 1 pin was low level; When fluctuating signal is imported, because of the A-current potential instantaneous at each high impulse greater than the A+ current potential, feedback by resistance R 6, form the pulsation high level of constant amplitude at the output of operational amplifier A, this signal offers operational amplifier B and carries out voltage ratio than handling with amplifying through the detecting circuit of diode D3 and capacitor C3 and resistance R 7 compositions.
5, the B+ of operational amplifier B connects the dividing potential drop benchmark of resistance R 4 and resistance R 11, when vibration chamber do not have yarn by the time, the B+ current potential is greater than B-, its output is high level; When vibration chamber had yarn to pass through, the B+ current potential was less than B-, and its output is low level; Signal voltage exports the next stage processing of circuit to by steering diode D4 and resistance R 8 and capacitor C4 circuit.
6, the C-of operational amplifier C connects the dividing potential drop benchmark of resistance R 4 and resistance R 11, when vibration chamber do not have yarn by the time, C+ is greater than C-, its output is high level; When vibration chamber had yarn to pass through, C+ was less than C-, and its output is low level; Signal voltage exports the next stage processing of circuit to by steering diode D5 and resistance R 9 and capacitor C5 circuit.
7, the D-of operational amplifier D connects the dividing potential drop benchmark of resistance R 4 and resistance R 11, when vibration chamber do not have yarn by the time, D+ is greater than D-, its output is high level; When vibration chamber had yarn to pass through, D+ was less than D-, and its output is low level; Signal voltage provides voltage for triode Q0 base stage by red light emitting diodes D6 and resistance R 10 backs in parallel with resistance R 12, resistance R 13 series circuits.When vibration chamber do not have yarn by the time, operational amplifier D is output as high level, red light emitting diodes D6 have electric current by and lighted, the electric current that flows through light emitting diode D6 produces voltage by resistance R 12 at resistance R 13 two ends.When vibration chamber had yarn to pass through, operational amplifier D was output as low level, and red light emitting diodes D6 does not have electric current by not lighted, and did not have electric current to flow through D6 and resistance R 12, resistance R 13 both end voltage 0V.
8, triode Q0 and steering diode D7 open collector output circuit, when base voltage was 0V, the not conducting of the CE utmost point of triode was high-impedance state; When operational amplifier D is output as high potential, produce 2V voltage at resistance R 13 two ends and send into triode Q0 base stage, make triode Q0 saturation conduction, be low resistive state.
9, power-supply circuit: outside 12V dc source is connected to the input of integrated stable voltage circuit U01 by switch S 1 after current-limiting resistance R0 current limliting, is connected to electrochemical capacitor C0 as the filtering after the voltage stabilizing, output voltage V CC at output after the voltage stabilizing.
Claims (3)
1. dynamic yarn detector of laser type, emission element, receiving-member, signal processing circuit board, signal lamp are housed in housing, it is characterized in that: emission element is laser diode (D2), receiving-member is laser pick-off triode (Q1), the output termination dynamic electric voltage follow circuit of laser pick-off triode (Q1), the dynamic electric voltage follow circuit connects the comparison amplifying circuit, relatively the output termination signal lamp (D6) and the output circuit of amplifying circuit.
2. the dynamic yarn detector of laser type according to claim 1 is characterized in that: dynamic electric voltage follow circuit and comparison amplifying circuit are made of operational amplifier (A, B, C, D).
3. the dynamic yarn detector of laser type according to claim 1 is characterized in that: three grades of relatively amplifying circuits are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200229393U CN201056654Y (en) | 2007-05-29 | 2007-05-29 | Laser type dynamic yarn prober |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200229393U CN201056654Y (en) | 2007-05-29 | 2007-05-29 | Laser type dynamic yarn prober |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201056654Y true CN201056654Y (en) | 2008-05-07 |
Family
ID=39425493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200229393U Expired - Fee Related CN201056654Y (en) | 2007-05-29 | 2007-05-29 | Laser type dynamic yarn prober |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201056654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031605A (en) * | 2010-11-12 | 2011-04-27 | 刘瑜 | Detection device for spinning machine yarn state and detection method thereof |
| CN106646503A (en) * | 2016-08-26 | 2017-05-10 | 浙江赛安电气科技有限公司 | Yarn speed measurement device, yarn covering and twisting equipment and yarn rotating speed measurement method |
-
2007
- 2007-05-29 CN CNU2007200229393U patent/CN201056654Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031605A (en) * | 2010-11-12 | 2011-04-27 | 刘瑜 | Detection device for spinning machine yarn state and detection method thereof |
| CN102031605B (en) * | 2010-11-12 | 2012-03-14 | 刘瑜 | Detection method for spinning machine yarn state |
| CN106646503A (en) * | 2016-08-26 | 2017-05-10 | 浙江赛安电气科技有限公司 | Yarn speed measurement device, yarn covering and twisting equipment and yarn rotating speed measurement method |
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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: 20080507 Termination date: 20120529 |