CN103572440A - Reflecting photoelectric structure and method for yarn detection - Google Patents
Reflecting photoelectric structure and method for yarn detection Download PDFInfo
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- CN103572440A CN103572440A CN201210250880.9A CN201210250880A CN103572440A CN 103572440 A CN103572440 A CN 103572440A CN 201210250880 A CN201210250880 A CN 201210250880A CN 103572440 A CN103572440 A CN 103572440A
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- yarn
- light
- twizzle
- reflection type
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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
- D01H13/1616—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 characterised by the detector
- D01H13/1633—Electronic actuators
- D01H13/165—Photo-electric sensing means
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a reflecting photoelectric structure and a method for yarn detection. The reflecting photoelectric structure comprises a guide wire structure positioned above a bobbin, and a reflecting photoelectric sensor is placed between the guide wire structure and the bobbin and used for detecting the moving state of yarns. The rotating speed of a spindle can be detected in the spinning process of a spinning frame, so that yarn breakage and spindle slide are detected, and the reflecting photoelectric structure has the advantages of small size, low cost, easiness in installation and replacement, high electromagnetic interference resistance and the like.
Description
Technical field
The present invention is applied to fine spining machine yarn detection field.
Background technology
At present, the basic spinning system of fine spining machine is, rove is formed to yarn (spun yarn) through three (most cases) drawing rollers drawing-offs, and yarn is wound on spool through twizzle, twizzle be positioned at spool directly over.For making yarn can be wound in spool, passed the steel traveler on rings track, when spool is driven in rotation, yarn is passive on spool, and steel traveler also will rotate with yarn.In this process, detecting sliding ingot and two kinds of phenomenons of broken yarn is very important for spinning.Sliding ingot refers to that the actual rotary speed of spindle (spindle) is slower than setting rotary speed.Broken yarn refers to that yarn is due to breaking that self or outside cause cause.
Traditional detection method mainly contains two kinds, and the first (Patent document number US-2930179A) utilizes electromagnetic sensor back and forth movement in the other long track of ring rail, surveys the steel traveler of spinning unit on a series of fine spining machines.The movement velocity of sensor will be well below the velocity of rotation of steel traveler.When a certain spindle of sensor process, magnetic field intensity will change because steel traveler rotation produce periodically, thereby obtain the periodic signal of telecommunication, detects spinning state.Its shortcoming is that cost is high, is difficult for installing, and fragile, signal to noise ratio is low, and inapplicable different types of machines, especially when steel traveler is non-magnet material.
Another kind of detection method (Patent document number DE-3708114A1) is to utilize photoelectric sensor to survey steel traveler, this is fundamentally solving the problem that affects of the material of steel traveler, but for some type, exists and cannot install or hinder the shortcomings such as block lathe work operation equally.
Therefore, a kind of volume is little, and cost is low, is beneficial to and installs and safeguard, new type yarn detecting sensor and the detection method being convenient to change more adapt to actual needs.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of reflection type photoelectricity structure detecting for yarn, and it can detect spindle velocity of rotation in fine spining machine spinning process, thereby surveys broken yarn and two kinds of phenomenons of sliding ingot.
In order to solve above technical problem, the invention provides a kind of reflection type photoelectricity structure detecting for yarn, comprise twizzle structure, twizzle structure is positioned at spindle top, and reflective photoelectric sensor is placed between twizzle and spindle, surveys yarn motion state.
Beneficial effect of the present invention is: can detect spindle velocity of rotation in fine spining machine spinning process, thereby survey broken yarn and two kinds of phenomenons of sliding ingot, and it is little to have volume, cost is low, easily installs, and the advantage such as easily changes and anti-electromagnetic interference capability is strong.
Described reflective photoelectric sensor is placed in the lower position of twizzle connecting plate,
Described reflective photoelectric sensor comprises optical transmitting set and optical receiver.
Twizzle be positioned at spool directly over, twizzle is fixed on body by a plate, yarn is through twizzle, by balloon breaker and bead winding on spool, its winding direction and spool direction of rotation, when spindle is driven, balloon breaker and rings are synchronously mobile at a slow speed is up and down wound on spool yarn.
Described reflective photoelectric sensor is close to the chain connecting plate below of twizzle, and its dead ahead is the rotary motion trace of yarn.
Described reflective photoelectric sensor comprises one or more optical transmitting sets; And one or more optical receivers.
Described reflective photoelectric sensor comprises a circuit control unit, and this circuit control unit is carried out signal processing.
Described reflective photoelectric sensor output line is two.
Described optical receiver is light-sensitive element, as photocell and/or light resistance and/or photodiode and/or phototriode.
The light that described sensor relates to can be the radiation of any wavelength, and prerequisite is that the radiation of application will be different from background radiation.
Described reflective photoelectric sensor receives the light of at least two kinds of different-wavebands.Light of the present invention is not limited to visible light wave range, can be also other light, for example infrared light and ultraviolet light wave band.Use the advantage of the light of two or more different-wavebands to be to detect various yarns.At least one described in a preferred embodiment in the light of at least two kinds of different-wavebands is positioned at visible light wave range, and at least one in the light of described at least two kinds of different-wavebands is positioned at infrared band.Use an advantage of infrared light to be to detect the yarn of black, because black yarn reflect visible light hardly, but reflects infrared light.Preferably adopt the optical transmitting set can send two or more different-waveband light, for example formerly the multi-color LED described in technology US7333203B2 just can be used as above-mentioned optical transmitting set.
The present invention also provides the method for a kind of Photoelectric Detection in the yarn coiling motion of ring spinner yarning position, described yarning position comprises the spool for winding yarn, with the twizzle that is positioned at spool top, light is radiated on the rotary yarn between twizzle and spool, and the reflective of yarn is detected.
Preferably, the light sending described in is at least two kinds of different-wavebands.More excellent, at least one in the light of described at least two kinds of different-wavebands is positioned at visible light wave range, and at least one in the light of described at least two kinds of different-wavebands is positioned at infrared band.
When the rotation that yarn detected is not during at preposition, there is the light sending to be used for producing an alarm signal.The described light that is used for producing alarm signal is different from the light that described detection yarn rotatablely moves.Particularly, described in be used for producing the light periodic switch of alarm signal, and/or the light rotatablely moving from described detection yarn has different colors.The performance element of spinning mechanism can be found two kinds of sliding ingot and broken yarns fast like this, and takes corresponding countermeasure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the schematic diagram of sensor on fine spining machine spinning unit;
Fig. 2 is yarn detection of reflected formula photoelectric sensor and detection method schematic diagram;
Fig. 3 is yarn detection of reflected formula photoelectric sensor output signals schematic diagram.
Each description of reference numerals in figure:
1 drawing rollers, 2 rove, 3 spun yarns (yarn), 4 twizzles, 5 balloon breakers, 6 reflective photoelectric sensors, 7 spools, 8 steel travelers, 9 rings, 10 spindles (spindle), 6 reflective photoelectric sensors, 11 optical transmitting sets, 12 optical receivers, 13 circuit boards (containing microcontroller), 14 data input-output lines, 15 light, 16 power lines, 17 yarns, 18 yarn running orbits.
The specific embodiment
The invention provides a kind of suitable sensor, it can detect spindle velocity of rotation in fine spining machine spinning process, thereby surveys broken yarn and two kinds of phenomenons of sliding ingot, and it is little to have volume, and cost is low, easily installs, and the advantage such as easily changes and anti-electromagnetic interference capability is strong.
Generally, the spinning unit chief component of fine spining machine is drawing rollers, twizzle, sensor device (the present invention is comprised of optical transmitting set and optical receiver), spool, balloon breaker (being only limited to high speed frame), steel traveler, rings, spindle and other mechanical parts.
Be different from traditional fine spining machine yarn detecting sensor, the present invention is placed in twizzle connecting plate below close connecting plate, and make the light sensation direction of sensor over against the center of twizzle, aim at the central shaft that yarn rotates formed air ring, the yarn after direct detection of dynamic is drafted as far as possible.In sensor, optical transmitting set emits beam, and is received and converts to the periodically variable signal of telecommunication export after the yarn reflection of the place ahead rotation by optical receiver.Yarn often rotates a circle, and the signal of optical receiver output one-period, according to the cycle of gained signal, obtains the rotating speed of spindle indirectly.
This reflective photoelectric sensor is different from being at all of emission sensor, and the former surveys the light being reflected back by yarn, and the latter surveys the light not blocked by yarn.
Wavelength that it should be noted that optical transmitting set and receiver should match each other.And the light that optical transmitting set sends can be visible ray, ultraviolet light, the light of other wavelength such as infrared light, can be also some electromagnetic radiation, as long as can be different from background radiation.
Microprocessor in sensor can be for driving optical transmitting set and optical receiver, and carry out the processing of signal.
Than traditional sensors, this sensor has solved following problem:
The installation inconvenience of traditional electrical Magnetic Sensor.There is twizzle any one single-ingot spinning unit, and when regular mechanical chipping, twizzle and unlike ring rail frequent dismounting install again, therefore sensor is placed under twizzle, make it not be subject to the clean impact of miscellaneous part, in the time of also can not changing yarn to spinner, do not make troubles and affect operating efficiency.
Traditional electrical Magnetic Sensor can not adapt to various types, and when steel traveler is non-magnet material, during as plastics, it can not be detected.Even if method of introducing in " DE-3828471A1 " is greatly improved than traditional electrical Magnetic Sensor, but before in problem related overslaugh block lathe work operation problem still exist.In addition for some type, some special circumstances, some high-speed spinning type for example, when balloon breaker extremely approaches twizzle (the general 3mm of minimum range), the volume of sensor has had certain restriction.Therefore this volume energy accomplishes that extremely small sensor will be more competitive.
Traditional sensors installation site and method are dumb.This sensor can adsorb by encapsulating inner set magnet at it, or directly pastes below twizzle connecting plate, can not affect the inconvenience causing due to sensor riding position while changing spool.And its distance apart from the distance at twizzle center is more flexible, the distance of the steel traveler of can not adjusting the distance as electromagnetic sensor is very responsive.
Electromagnetic sensor is easy to be subject to the interference of external condition.And the present invention, as long as the luminous energy that optical transmitting set used sends is different from background light, measurement result just can not be subject to the impact of extraneous light or electromagnetic radiation.
Specifically, as shown in Figure 1, in a spinning unit, rove 2 forms yarn 3 through several drawing rollers that velocity of rotation is not waited 1 to technical solutions according to the invention, and the speed of prime roller is greater than rear class roller.Twizzle 4 be positioned at spool 7 directly over, twizzle 4 is fixed on body by a plate.Yarn is through twizzle 4, and balloon breaker 5 and steel traveler 8 are wrapped on spool, its winding direction and spool 7 direction of rotation.When spindle 10 is driven, balloon breaker 5 and rings 9 synchronously move at a slow speed up and down, and due to the effect of steel traveler 8 on rings 9, yarn 3 can be wound on spool 7.Yarn 3 in Fig. 1 has been wound around the Lower Half of spool 7, when yarn 3 is wound around the first half of spool 7, balloon breaker 5 approaches twizzle 4 more, due to spindle 10 High Rotation Speeds, the centrifugal force of yarn 3 forms very thick air ring very greatly, and at this moment balloon breaker 5 plays the effect that reduces air ring diameter.While approaching full yarn, balloon breaker 5 is pressed close to twizzle 4, and this should be as the significant consideration of sensor installation.
In the present invention, reflective photoelectric sensor 6 is close to the chain connecting plate below of twizzle 4, and its dead ahead is the rotary motion trace of yarn 3.Optical transmitting set in sensor 6 (LED) is to its place ahead yarn 3 emission of lights, thereby part light is reflected by optical receiver (phototriode) and receives by yarn.
Fig. 2 is the top view of sensor 6.Optical transmitting set 11(is as LED) to broken circle in yarn movement track 18(figure) emission of light, yarn 3 cutting parts or all light, the light 15 being blocked by yarn 3 will be reflected, by optical receiver 12(phototriode) receive.Every rotation one circle of yarn 3, receiver 12 just sends the signal of one-period.Sensor 6 gets over the connecting plate of twizzle 4, and the diameter of yarn rotary motion trace is less, and yarn 3 more likely cuts whole light.Optical receiver can be any light-sensitive element, as photocell, and light resistance, photodiode, phototriode etc.But select phototriode, because its photoelectric current is larger, subsequent conditioning circuit is processed can be comparatively simple.Microcontroller in circuit board 13 is mainly used in providing power supply to transmitter 11 and receiver 12, and signal is processed and communication.The output port of sensor 6 is two-wire system, that is to say and only has two signal line.The front-end surface of sensor 6 outer packages, the light that an end surfaces of close yarn 3 should send optical transmitting set 11 is penetrating, and other surfaces there is no strict demand to the permeability of light.
Output signal roughly as shown in Figure 3.The signal that U (t) sends for receiver 12, in figure, each cycle T has two peak values, and this is the light due to the strength of yarn 3 cutting twice light intensity.But differing in size of two peak values, this is to be produced to the distance difference of sensor by yarn 3.Because the corresponding yarn 3 of one-period T rotates once, so the speed f of yarn 3 is 1/T.The every bobbin 7 of yarn 3 revolves and turns around, and steel traveler 8 also revolves and turns around thereupon, can draw the rotating speed of spindle 10 according to the relational expression of the rotating speed of steel traveler 8 and spindle 10 rotating speeds.Conventionally the span of f be 167Hz to 417Hz, corresponding spindle 10 rotating speeds are 10000 to 25000rpm.
An embodiment preferably, optical transmitting set 11 produces the light 15 of at least two kinds of different-wavebands, and at least one in the light of described at least two kinds of different-wavebands is positioned at infrared band, is used for obtaining only having at visible light wave range the reflected light signal of the yarn 17 of antiradar reflectivity.Multi-color LED just can be used as the optical transmitting set 11 that sends two or more different-waveband light.
Light (15) not only can be used for detecting yarn and rotatablely move, and the rotation of yarn can also be detected not at preposition, and the light 15 that optical transmitting set 11 produces can be used for producing an alarm signal to the execution unit of spinning unit.The performance element of spinning mechanism can be found two kinds of sliding ingot and broken yarns fast like this, and takes corresponding countermeasure.Described alarm signal can be for example the flicker of light 15.In other words.The described light that is used for producing alarm signal is at the discernible 1-10Hz periodic switch of human eye.And/or the light (15) that the light that produces alarm signal rotatablely moves from described detection yarn (17) has different colors.For example, the light that produces alarm signal is red, and the light (15) that described detection yarn (17) rotatablely moves is for green.
Above the introduction of this sensor is only described to its basic functional principle roughly, do not represent the whole of its function.The present invention is not limited to embodiment discussed above.Above the description of the specific embodiment is intended in order to describe and illustrate the technical scheme the present invention relates to.Apparent conversion based on the present invention enlightenment or substitute and also should be considered to fall into protection scope of the present invention.The above specific embodiment is used for disclosing best implementation method of the present invention, so that those of ordinary skill in the art can apply numerous embodiments of the present invention and multiple alternative reaches object of the present invention.
Claims (19)
1. the reflection type photoelectricity structure detecting for yarn, comprise twizzle (4) structure, twizzle (4) structure is positioned at spool (7) top, it is characterized in that, reflective photoelectric sensor (6) is placed between twizzle (4) and spool (7), surveys yarn motion state.
2. the reflection type photoelectricity structure detecting for yarn as claimed in claim 1, is characterized in that, described reflective photoelectric sensor (6) is placed in the lower position of twizzle (4) connecting plate.
3. the reflection type photoelectricity structure detecting for yarn as claimed in claim 2, is characterized in that, described reflective photoelectric sensor (6) comprises optical transmitting set (11) and optical receiver (12).
4. the reflection type photoelectricity structure detecting for yarn as claimed in claim 3, it is characterized in that, twizzle (4) be positioned at spool (7) directly over, twizzle (4) is fixed on body by a plate, yarn is through twizzle (4), by balloon breaker (5) and steel traveler (8), be wrapped on spool, its winding direction and spool (7) direction of rotation, when spindle (10) is driven, balloon breaker (5) and rings (9) are synchronously mobile at a slow speed is up and down wound on spool (7) yarn (3).
5. the reflection type photoelectricity structure detecting for yarn as claimed in claim 4, is characterized in that, described reflective photoelectric sensor (6) is close to the chain connecting plate below of twizzle (4), and its dead ahead is the rotary motion trace of yarn (3).
6. the reflection type photoelectricity structure detecting for yarn as claimed in claim 5, is characterized in that, described reflective photoelectric sensor (6) comprises one or more optical transmitting sets; And one or more optical receivers.
7. the reflection type photoelectricity structure detecting for yarn as claimed in claim 6, is characterized in that, described reflective photoelectric sensor (6) comprises a circuit control unit, and this circuit control unit is carried out signal processing.
8. the reflection type photoelectricity structure detecting for yarn as claimed in claim 7, is characterized in that, described reflective photoelectric sensor (6) output line is two.
9. the reflection type photoelectricity structure detecting for yarn as claimed in claim 8, is characterized in that, described optical receiver is light-sensitive element, as photocell and/or light resistance and/or photodiode and/or phototriode.
10. the reflection type photoelectricity structure detecting for yarn as claimed in claim 1, is characterized in that, reflective photoelectric sensor (6) receives the light of at least two kinds of different-wavebands.
The 11. reflection type photoelectricity structures that detect for yarn as claimed in claim 10, it is characterized in that, at least one in the light of described at least two kinds of different-wavebands is positioned at visible light wave range, and at least one in the light of described at least two kinds of different-wavebands is positioned at infrared band.
12. reflection type photoelectricity structures that detect for yarn as described in claim 3 or 10, is characterized in that, described optical transmitting set (11) produces the light of at least two kinds of different-wavebands.
The 13. reflection type photoelectricity structures that detect for yarn as claimed in claim 12, is characterized in that, described optical transmitting set (11) is a multi-color LED.
14. 1 kinds of methods that Photoelectric Detection is moved in the yarn coiling of ring spinner yarning position, described yarning position comprises the spool (7) for winding yarn, with the twizzle (4) that is positioned at spool (7) top, it is characterized in that, the rotary yarn (17) that light is radiated between twizzle (4) and spool (7) is upper, reflective being detected of yarn (17).
15. Photoelectric Detection as claimed in claim 14, in the method for the yarn coiling motion of ring spinner yarning position, is characterized in that, described in the light that sends at least two kinds of different-wavebands.
16. Photoelectric Detection as claimed in claim 15 are in the method for the yarn coiling motion of ring spinner yarning position, it is characterized in that, at least one in the light of described at least two kinds of different-wavebands is positioned at visible light wave range, and at least one in the light of described at least two kinds of different-wavebands is positioned at infrared band.
17. Photoelectric Detection as claimed in claim 14, in the method for the yarn coiling motion of ring spinner yarning position, is characterized in that, when the rotation that yarn detected is not during at preposition, have the light (15) sending to be used for producing an alarm signal.
18. Photoelectric Detection as claimed in claim 17, in the method for the yarn coiling motion of ring spinner yarning position, is characterized in that, described in to be used for producing the light (15) that the light (15) of alarm signal rotatablely moves from described detection yarn (17) different.
19. Photoelectric Detection as claimed in claim 18 are in the method for the yarn coiling motion of ring spinner yarning position, it is characterized in that, the described light periodic switch that is used for producing alarm signal, and/or the light (15) rotatablely moving from described detection yarn (17) has different colors.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250880.9A CN103572440A (en) | 2012-07-19 | 2012-07-19 | Reflecting photoelectric structure and method for yarn detection |
| PCT/CH2013/000126 WO2014012189A1 (en) | 2012-07-19 | 2013-07-12 | Photoelectric monitoring of a rotational yarn movement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210250880.9A CN103572440A (en) | 2012-07-19 | 2012-07-19 | Reflecting photoelectric structure and method for yarn detection |
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| CN103572440A true CN103572440A (en) | 2014-02-12 |
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| WO (1) | WO2014012189A1 (en) |
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| CN104775203A (en) * | 2015-04-08 | 2015-07-15 | 杭州电子科技大学 | Current detecting circuit of photoelectric tube |
| CN104828649A (en) * | 2014-02-10 | 2015-08-12 | 村田机械株式会社 | Yarn catching device and yarn winding machine |
| CN105040199A (en) * | 2015-09-14 | 2015-11-11 | 江南大学 | Spinning machine online weak twist detection apparatus and detection method |
| CN105624860A (en) * | 2015-12-21 | 2016-06-01 | 浙江日发纺织机械股份有限公司 | Balloon measurement device of direct twister |
| 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 |
| CN107539833A (en) * | 2017-07-21 | 2018-01-05 | 谭威 | A kind of yarn guide |
| CN107815760A (en) * | 2016-09-13 | 2018-03-20 | 普瑞米尔伊沃维克斯私人有限公司 | System and method for the state and rotating speed of monitoring moving yarn |
| CN110146210A (en) * | 2019-06-10 | 2019-08-20 | 南京凌风智能科技有限公司 | A kind of non-contact yarn vibration frequency detection circuit |
| CN110656409A (en) * | 2019-09-30 | 2020-01-07 | 三峡大学 | Device and method for judging rotating outer diameter of wire rod |
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| CN113227475A (en) * | 2018-11-02 | 2021-08-06 | 平特凯博个人股份有限公司 | Drawing assembly for ring spinning machine and drawing kit for drawing fiber on ring spinning machine |
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| CN104828649A (en) * | 2014-02-10 | 2015-08-12 | 村田机械株式会社 | Yarn catching device and yarn winding machine |
| CN104775203A (en) * | 2015-04-08 | 2015-07-15 | 杭州电子科技大学 | Current detecting circuit of photoelectric tube |
| CN105040199B (en) * | 2015-09-14 | 2019-01-08 | 江南大学 | A kind of online weak twist detection device of spinning frame and detection method |
| CN105040199A (en) * | 2015-09-14 | 2015-11-11 | 江南大学 | Spinning machine online weak twist detection apparatus and detection method |
| CN105624860A (en) * | 2015-12-21 | 2016-06-01 | 浙江日发纺织机械股份有限公司 | Balloon measurement device of direct twister |
| CN105624860B (en) * | 2015-12-21 | 2017-11-10 | 浙江日发纺织机械股份有限公司 | Straight twister air ring measurement apparatus |
| 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 |
| CN107815760A (en) * | 2016-09-13 | 2018-03-20 | 普瑞米尔伊沃维克斯私人有限公司 | System and method for the state and rotating speed of monitoring moving yarn |
| CN107539833A (en) * | 2017-07-21 | 2018-01-05 | 谭威 | A kind of yarn guide |
| CN110146210A (en) * | 2019-06-10 | 2019-08-20 | 南京凌风智能科技有限公司 | A kind of non-contact yarn vibration frequency detection circuit |
| CN110146210B (en) * | 2019-06-10 | 2020-05-12 | 南京凌风智能科技有限公司 | Non-contact yarn vibration frequency detection circuit |
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| CN111926427A (en) * | 2020-08-07 | 2020-11-13 | 苏州汇川技术有限公司 | Single-spindle detection system, control method, device and storage medium |
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| WO2014012189A1 (en) | 2014-01-23 |
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Application publication date: 20140212 |