CN2047672U - Photoelectrical weft finder based on infra-red reflection - Google Patents
Photoelectrical weft finder based on infra-red reflection Download PDFInfo
- Publication number
- CN2047672U CN2047672U CN 88213731 CN88213731U CN2047672U CN 2047672 U CN2047672 U CN 2047672U CN 88213731 CN88213731 CN 88213731 CN 88213731 U CN88213731 U CN 88213731U CN 2047672 U CN2047672 U CN 2047672U
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- CN
- China
- Prior art keywords
- phototriode
- weft
- photoelectric
- utility
- semi
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a photoelectrical weft finder based on infrared reflection, which is an auxiliary implement on the knitting machine with a shuttle for detecting whether the weft exists or not. The utility model mode is used for automatically stopping the machine when the weft yarn is used up, and the workers can timely change the new weft yarn for continue weaving. The photoelectrical weft finder based on infra-red reflection of the utility model comprises a photoelectric detector head and a control box two parts. The translucent reflecting film is in a 45 DEG angle and is arranged between the collecting lens and the phototransistor; the both ends of the phototransistor are connected with photoelectric control circuits.
Description
The utility model photoelectric weft-finder; be to be used to have a kind of on the woven fabric machine to survey the infrared reflection formula photoelectric weft-finder that weft yarn has or not; when the weft yarn on the cop will be used up; play autostop; be convenient to the spinner and in time change weft yarn and continue to weave, thereby reach the raising loom efficiency, improve the quality of products; reduce raw materials consumption, alleviate the purpose of labor strength.
The Weft search unit that in the past used on fly-shuttle loom has two kinds of patterns:
1. mechanical type Weft feeler;
2. transmission-type photoelectric weft probing device;
More than two kinds of Weft feelers because their structure and characteristics make it to have common weak point: (1) adopts above-mentioned two kinds of Weft feelers, all will carry out process and remould to cop, shuttle and shuttle box; (2) no matter be, still gather signal, install and when using, all mechanical locating accuracy is had relatively high expectations by transmitted light path by mechanical probes, otherwise will be malfunctioning or produce misoperation, make it stability and reduce, simultaneously, regulate difficulty, be not easy to promote the use of; (3) shuttle, cop punching have also influenced service life.
The purpose of this utility model is in order to overcome the deficiency of above two kinds of bobbin feelers, provide a kind of simple in structure, debugging is convenient, the novel photoelectric bobbin feeler of dependable performance.
The utility model infrared reflection formula photoelectric weft-finder is the improvement to existing photoelectric weft probing device, comprises the photodetector head assembly of band light source and phototriode, forms with the photoelectric controller two parts that are connected phototriode, and this bobbin feeler is characterised in that:
One, light source is an infrarede emitting diode;
Two, photodetector head assembly adopts reflecting light electrical resistivity survey geodesic structure, constitute by infrarede emitting diode 1, semi-transparent reflective membrane 2, collector lens 3, phototriode 4, its structure and operation principle are seen Fig. 1, wherein semi-transparent reflective membrane, collector lens, phototriode are on the same axis, semi-transparent reflective membrane is in the middle of collector lens and the phototriode, its normal and axis are 45, infrarede emitting diode with the position of axis normal on, and aim at semi-transparent reflective membrane, 4 liang of termination photoelectric controllers of phototriode circuit.
Specify operation principle of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is the structure and the fundamental diagram of the reflective photodetector head assembly of the utility model, and 1 is infrarede emitting diode among the figure, and 2 is semi-transparent reflective membrane, and 3 is collector lens, and 4 is phototriode, and 5 for being tied with the cop of reflective membrane.
Its operation principle is during installation, will to be tied with the reflective membrane part on the photodetector head assembly collector lens aligning cop, when twining full weft yarn on the cop, reflective membrane is blocked, and is not reflected through the infrared light that semi-transparent reflective membrane, collector lens project on the cop from light emitting diode, and phototriode can not receive light, be in cut-off state, when weft yarn ran low on the cop, the reflective membrane on the cop had revealed to come out, and above-mentioned infrared light is reflected, part reflection optical axis makes it conducting to reflexing to phototriode.
Fig. 2 is the photo-electric control partial circuit figure of a specific embodiment of the utility model.
Among the figure, power transformer BT has two secondary coils, secondary coil L
2Through bridge rectifier, divide two-way that electric current of voltage regulation is provided behind the filter circuit, the one road supplies with infrarede emitting diode BG
8Electric current of voltage regulation, the one road supplies with the photoelectric control circuit operating voltage that four-operational amplifier is formed.
Photoelectric control circuit is by phototriode BG
1(being 4 among Fig. 1), four operational amplifier IC
1～IC
4, switch triode BG
4, controllable silicon BG
6, bridge rectifier BG
7, power transformer secondary coil L
3Deng composition, wherein, IC
1Form comparison amplifier, IC
2Form Shi Mite shaping circuit, IC
3, IC
4Form monostable circuit, IC
3Output control BG
4Base stage, BG
4Output meet controllable silicon BG
6Control end, BG
6Major loop two termination bridge rectifier BG
7Two DC terminal, BG
7The secondary coil L of interchange termination power transformer
3, at L
3With BG
7Between two lead-out terminal a and b are arranged, the electromagnet of external control loom switch.The output signal of phototriode meets operational amplifier IC
1Negative input end.
The operation principle of entire circuit is:
As phototriode BG
1When not receiving infrared signal, bridge rectifier BG
7Be in cut-off state, lead-out terminal a and b do not have alternating current output, and electromagnet is failure to actuate.
Work as BG
1When receiving infrared signal, BG
1Conducting, 6 electronegative potentials among the figure, 7 high potentials, 8 electronegative potentials, 9 electronegative potentials, 10 high potentials, BG
4The switching tube conducting, controllable silicon BG
6Conducting, bridge rectifier BG
7Conducting, 2 output AC electricity of a, b, the loom autostop is cut off the loom switch in the electromagnet action.In 10 high potentials, 11 electronegative potentials, at this moment power supply passes through W
1To C
4Charging is through 9 recovery high potentials of certain hour, IC
3End, circuit recovers original state.
Among Fig. 2, W
1For transferring sensitivity, W
2For transferring IC
2The operating point, W
3For transferring the delay time of monostable circuit, BG
5Be voltage-stabiliser tube, all the other resistance capacitances are conventional connection.
Provide the main components and parts model of this enforcement circuit below:
Transmitting illuminant: HG455 infrarede emitting diode;
Phototriode: 3DU32;
Four-operational amplifier: LM324N;
The utility model infrared reflection photoelectric weft-finder performance indications:
Power supply :～220V/380V, 50HZ;
Output signal: pulse output 24V 1A;
Dynamic response: 〉=2ms;
Overall Power Consumption :≤40VA
Detection range: 0～500mm;
Working method: continuous operation.
The utility model has the advantages such as highly sensitive, that stability is good, anti-interference is strong, volume is little, weight is light owing to adopted infrared light supply and reflective structure.
Simultaneously, the infraluminescence pipe has reduced energy consumption simultaneously than prolonging more than 20 times the service life of incandescent lamp.
Claims (2)
1, a kind of infrared reflection formula photoelectric weft-finder, photodetector head assembly by band light source and phototriode, form with the photoelectric controller two parts that are connected phototriode, of the present utility model being characterised in that: photodetector head assembly is a reflecting light electrical resistivity survey geodesic structure, by light source, semi-transparent reflective membrane, collector lens, phototriode constitutes, wherein semi-transparent reflective membrane, collector lens, phototriode is on the same axis, semi-transparent reflective membrane is between collector lens and the phototriode, its normal and axis are 45, light source with the position of axis normal on; And aims at semi-transparent reflective membrane, phototriode two termination photoelectric control circuits.
2, by the described reflective photoelectric weft-finder of claim 1, it is characterized in that described light source is an infrarede emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213731 CN2047672U (en) | 1988-09-01 | 1988-09-01 | Photoelectrical weft finder based on infra-red reflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213731 CN2047672U (en) | 1988-09-01 | 1988-09-01 | Photoelectrical weft finder based on infra-red reflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2047672U true CN2047672U (en) | 1989-11-15 |
Family
ID=4846784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88213731 Withdrawn CN2047672U (en) | 1988-09-01 | 1988-09-01 | Photoelectrical weft finder based on infra-red reflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2047672U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346251A (en) * | 2011-11-01 | 2012-02-08 | 江苏万工科技集团有限公司 | Weft yarn floatation characteristic measurement device |
| CN102437877A (en) * | 2011-12-15 | 2012-05-02 | 深圳市新岸通讯技术有限公司 | Free-space optical (FSO) signal receiving device |
| CN109281146A (en) * | 2018-12-06 | 2019-01-29 | 纺智石墨烯科技（上海）有限公司 | A method of reducing superfine yarn fabric defect rate |
-
1988
- 1988-09-01 CN CN 88213731 patent/CN2047672U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346251A (en) * | 2011-11-01 | 2012-02-08 | 江苏万工科技集团有限公司 | Weft yarn floatation characteristic measurement device |
| CN102437877A (en) * | 2011-12-15 | 2012-05-02 | 深圳市新岸通讯技术有限公司 | Free-space optical (FSO) signal receiving device |
| CN109281146A (en) * | 2018-12-06 | 2019-01-29 | 纺智石墨烯科技（上海）有限公司 | A method of reducing superfine yarn fabric defect rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |