CN113668104A - Textile broken yarn detection device and method - Google Patents
Textile broken yarn detection device and method Download PDFInfo
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- CN113668104A CN113668104A CN202111000741.6A CN202111000741A CN113668104A CN 113668104 A CN113668104 A CN 113668104A CN 202111000741 A CN202111000741 A CN 202111000741A CN 113668104 A CN113668104 A CN 113668104A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 239000004753 textile Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009987 spinning Methods 0.000 claims abstract description 56
- 238000005192 partition Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 47
- 238000005286 illumination Methods 0.000 claims description 15
- 238000009941 weaving Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to the field of spinning, in particular to a spinning broken yarn detection device and a method thereof; the broken wire detection equipment comprises a shell, wherein the interior of the shell is transversely divided into three cavities, a light source is arranged at the top of the middle cavity, a transverse partition plate is arranged below the light source, the transverse partition plate is fixed on the inner wall of the middle cavity of the shell, two groups of light-transmitting openings are formed in the transverse partition plate, the light-transmitting openings are symmetrically arranged on two sides of the light source, a longitudinal partition plate is arranged at the lower end of the transverse partition plate and is positioned between the two light-transmitting openings, the space below the transverse partition plate is divided into a left independent cavity and a right independent cavity, and photoelectric elements are arranged at the bottoms of the left independent cavity and the right independent cavity; the textile broken yarn detection equipment provided by the invention can carry out early warning prompt on the broken yarn condition in time; in addition, the device can also find the filaments about to break in time, ensure the quality of products while ensuring the production efficiency, and is suitable for further popularization and application.
Description
Technical Field
The invention relates to the field of spinning, in particular to spinning broken yarn detection equipment and a method thereof.
Background
The textile industry is the traditional industry in China, and textile machinery is developed along with the textile industry. Nowadays automated spinning plants are widely used in industrial production.
In the mechanical spinning process, due to the fact that the multiple bobbins run together, manual monitoring cannot be conducted simultaneously, and if the yarn is broken in the production process, the yarn cannot be found in time to cause great influence on production efficiency.
Disclosure of Invention
The invention provides a textile broken yarn detection device and a method thereof, which can effectively solve the problems.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a weaving broken silk check out test set, includes the casing, the inside of casing is along horizontal separation for three cavity, and the light source is installed at the top of middle part cavity, the below of light source is equipped with transverse baffle, transverse baffle is fixed in on the inner wall of casing middle part cavity, two sets of printing opacity openings have been seted up on the transverse baffle, the both sides of light source are located to the printing opacity opening symmetry, longitudinal baffle is installed to transverse baffle's lower extreme, longitudinal baffle is located between two printing opacity openings, becomes two independent cavities about transverse baffle below space partition, and the bottom of two independent cavities about all installs photoelectric element, the casing transversely runs through to offer the perforation that is used for passing the spinning, the perforation is located one side of longitudinal baffle, all installs marking mechanism and tension detection mechanism in the cavity that is located casing middle part cavity both sides, marking mechanism, The tension detection mechanism corresponds to the position of the perforation;
the marking mechanism comprises a pushing mechanism and a collodion inkpad, the collodion inkpad and the tension detection mechanism are arranged at the bottom or the top of the cavity at the same side, and the pushing mechanism is positioned at the opposite side of the collodion inkpad and corresponds to the collodion inkpad in position;
and an early warning module is installed on the side part of the shell.
As a further improvement, the tension detection mechanism comprises a hollow shell, a bolt, a lifting plate, a longitudinal sliding plate, a connecting rod, a pressure sensor, a concave wheel and an elastic piece, the two sides of the inner cavity of the hollow shell are provided with sliding grooves, the top end of the hollow shell is connected with a bolt through a thread, the lower end of the bolt is rotatably connected with a lifting plate, two sides of the lifting plate are provided with first sliding blocks, a longitudinal sliding plate is arranged below the lifting plate, second sliding blocks are arranged on two sides of the longitudinal sliding plate, the first sliding block and the second sliding block are both connected in the sliding groove in a sliding way, an elastic part is arranged between the lifting plate and the longitudinal sliding plate, the bottom of the longitudinal sliding plate is fixedly connected with a connecting rod which penetrates through the bottom of the hollow shell, the bottom of connecting rod is connected with the concave wheel that is used for the joint spinning, pressure sensor is installed to the inner chamber bottom of cavity casing.
The invention also provides a broken yarn detection method of the textile broken yarn detection device, which comprises the following steps:
s1: detecting the tension of the spinning through a tension detection mechanism, when the tension of the spinning is smaller than a preset magnitude, carrying out early warning prompt by an early warning module, stopping the operation of the textile machine at the same time, and otherwise, executing S2;
s2: measuring the electric signals output by the photoelectric element under different light intensities, and manufacturing a standard bus;
s3: measuring electric signals output by different light receiving areas of the photoelectric element under each illumination intensity, and respectively manufacturing standard buses;
s4: the electric signal received by the photoelectric element in the independent cavity at the non-perforated side below the transverse partition plate is taken as a reference, and the illumination intensity of light emitted by the light source through the light-transmitting opening is obtained according to the measured reference bus;
s5: selecting standard buses corresponding to the photoelectric elements with different light receiving areas to output electric signals under the illumination intensity by taking the obtained illumination intensity as a reference;
s6: at the same moment, the light receiving area of the spinning side photoelectric element at the moment is obtained according to the electric signal output by the spinning side photoelectric element and the standard bus selected in S5;
s7: subtracting the light receiving area measured in S6 from the light receiving area of the spinning side photoelectric element without shielding to obtain the shielding area of the spinning shadow;
s8: the shielding area of the spinning shadow is compared with a preset threshold value, when the shielding area is smaller than the preset threshold value, the ejection mechanism stretches and retracts once, the spinning machine stops running, and meanwhile the early warning module carries out early warning prompt.
As a further improvement, when the shaded area for forming the spun yarn in S8 is smaller than the preset threshold value, the spinning machine stops after the outer spinning machine further conveys the spun yarn forward for a distance of 2L to 3L, where L is the length of the housing 1.
Compared with the prior art, the invention has the beneficial effects that:
the textile broken yarn detection equipment provided by the invention can carry out early warning prompt on the broken yarn condition in time; in addition, the device can also find the filaments about to break in time, ensure the quality of products while ensuring the production efficiency, and is suitable for further popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic structural view of a tension detecting mechanism;
FIG. 4 is a schematic view of a concave wheel.
The reference numerals in the drawings denote: a shell-1; a light source-2; a transverse partition plate-3; a longitudinal partition-4; a photoelectric element-5; a pushing mechanism-6; collodion inkpad-7; a tension detection mechanism-8; spinning-9; an early warning module-10; perforation-11; a light-transmitting opening-31; a hollow housing-81; a chute-811; a bolt-82; a lifter plate-83; a first slider-831; a longitudinal sliding bar-84; a second slider-841; connecting rod-85; a pressure sensor-86; a concave wheel-87; an elastic member-88.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention provides a textile broken yarn detection apparatus, including a housing 1, the interior of the housing 1 is divided into three cavities along a transverse direction, a light source 2 is installed on the top of the middle cavity, a transverse partition plate 3 is installed below the light source 2, the transverse partition plate 3 is fixed on the inner wall of the middle cavity of the housing 1, two sets of light-transmitting openings 31 (the two light-transmitting openings 31 have the same size) are opened on the transverse partition plate 3, that is, light irradiated by the light source 2 can only be emitted through the light-transmitting openings 31; since the light-transmitting openings 31 are symmetrically disposed on both sides of the light source 2, the light intensities emitted from the light-transmitting openings on both sides are consistent. The lower end of the transverse partition plate 3 is provided with a longitudinal partition plate 4, the longitudinal partition plate 4 is positioned between the two light-transmitting openings 31, the two light-transmitting openings 31 are respectively positioned at two sides of the longitudinal partition plate 4 in the embodiment, the space below the transverse partition plate 3 is divided into a left independent cavity and a right independent cavity, the bottoms of the left independent cavity and the right independent cavity are both provided with photoelectric elements 5, wherein the photoelectric elements 5 can be selected from photoresistors; the shell 1 is transversely provided with a through hole 11 for passing through the spinning 9 in a penetrating way, and when the spinning device is used, the spinning 9 penetrates through the through hole 11 at one end of the shell 1 and penetrates out from the other end; the through hole 11 is positioned at one side of the longitudinal partition plate 4, the marking mechanism and the tension detection mechanism 8 are respectively arranged in the cavities at two sides of the cavity in the middle of the shell 1, and the marking mechanism and the tension detection mechanism 8 correspond to the through hole 11 in position;
the marking mechanism comprises a pushing mechanism 6 and collodion inkpad 7, wherein the pushing mechanism 6 consists of an electric telescopic mechanism and a pushing block fixed at the telescopic end of the electric telescopic mechanism; the collodion inkpad 7 and the tension detection mechanism 8 are arranged at the bottom or the top of the cavity at the same side, and the ejection mechanism 6 is positioned at the opposite side of the collodion inkpad 7 and corresponds to the same; wherein casing 1 offers the opening that is used for installing glued membrane inkpad 7, and glued membrane inkpad 7 passes through bolt demountable installation on casing 1, and the dismantlement of the glued membrane inkpad 7 of being convenient for of this kind of setting is changed. When the marking mechanism works, the ejection mechanism 6 performs one-time telescopic action to eject the spun yarn 9 onto the collodion inkpad 7, so that an operator can conveniently identify the specific position of the unqualified and fine spun yarn.
The spinning broken yarn detection equipment and the spinning machine are electrically connected with an external control system.
The side part of the shell 1 is provided with an early warning module 10; the early warning module 10 is composed of a flashing light and a buzzer, when early warning is carried out, the flashing light flashes, and the buzzer is started at the same time so as to prompt an operator in time.
Further, the tension detection mechanism 8 includes a hollow housing 81, a bolt 82, a lifting plate 83, a longitudinal sliding plate 84, a connecting rod 85, a pressure sensor 86, a concave wheel 87 and an elastic member 88, sliding grooves 811 are formed on two sides of an inner cavity of the hollow housing 81, the bolt 82 is connected to the top end of the hollow housing 81 in a threaded manner, the lifting plate 83 is rotatably connected to the lower end of the bolt 82, first sliding blocks 831 are arranged on two sides of the lifting plate 83, the longitudinal sliding plate 84 is arranged below the lifting plate 83, second sliding blocks 841 are arranged on two sides of the longitudinal sliding plate 84, and the first sliding blocks 831 and the second sliding blocks 841 are both connected to the sliding grooves 811 in a sliding manner, so that the first sliding blocks 831 and the second sliding blocks 841 vertically lift; an elastic member 88 is arranged between the lifting plate 83 and the longitudinal sliding plate 84, wherein the elastic member 88 can be a spring; the bottom of the longitudinal sliding plate 84 is fixedly connected with a connecting rod 85, the connecting rod 85 penetrates through the bottom of the hollow shell 81, the bottom of the connecting rod 85 is connected with a concave wheel 87 used for clamping the spinning yarn 9, and the bottom of the inner cavity of the hollow shell 81 is provided with a pressure sensor 86.
When the spinning machine is used, the concave wheel 87 is abutted against the conveyed spun yarn 9, in the normal spinning process, if the spun yarn 9 is not broken, a certain tension exists on the spun yarn 9, the longitudinal sliding plate 84 cannot contact the pressure sensor 86 under the support of the tension of the spun yarn 9, when the support force on the concave wheel 87 disappears after the spinning is broken, the longitudinal sliding plate 84 extrudes the pressure sensor 86 under the action of the elastic piece 88, and the pressure sensor 86 generates an electric signal; the external control system controls the textile machine to stop running and the early warning module 10 gives an early warning.
In addition, the tension detection mechanism 8 can also realize the adjustment of the detected tension, when the detected tension needs to be reduced, the bolt 82 is rotated to enable the lifting plate 83 to ascend, the ascending of the lifting plate 83 can enable the extrusion force applied to the elastic piece 88 to be reduced, and therefore, the spinning 9 only needs to provide a small supporting tension, and the longitudinal sliding plate 84 does not contact the pressure sensor 86; when the detected tension needs to be increased, the lifting plate 83 is lowered by rotating the bolt 82, and the pressing force applied to the elastic member 88 is increased when the lifting plate 83 is lowered, so that the longitudinal sliding plate 84 does not contact the pressure sensor 86 when the spinning thread 9 needs to provide a large supporting tension; this kind of setting has promoted the suitability of tension detection mechanism 8, and the user can adjust the early warning limit according to the 9 tensions of spinning in the actual weaving process.
The embodiment also provides a broken yarn detection method of the textile broken yarn detection device, which comprises the following steps:
s1: detecting the tension of the spun yarn 9 by the tension detection mechanism 8, when the tension of the spun yarn 9 is smaller than a preset value, adjusting the tension of the tension detection mechanism 8 by rotating a rotating bolt 82 on the tension detection mechanism 8, outputting an electric signal by a down-bouncing extrusion pressure sensor 86 by a longitudinal sliding plate 84 in the tension detection mechanism 8 when the tension of the spun yarn 9 is lost, controlling an early warning module 10 by an external control system to give an early warning prompt, stopping the operation of the textile machine at the same time, or executing S2;
s2: measuring the electric signals output by the photoelectric element 5 under different light intensities, and manufacturing a standard bus; that is, the photoelectric element 5 converts an optical signal into an electrical signal and outputs the electrical signal, and the electrical signal is increased with the increase of the light, and the optical signal and the electrical signal have a certain relationship with each other, and a reference bus line as a relationship line between the optical signal and the electrical signal is formed.
S3: measuring electric signals output by the photoelectric element 5 under different light receiving areas under various illumination intensities, and respectively manufacturing standard buses; under the same illumination intensity and different light receiving areas, the electric signal output by the photoelectric element 5 also changes, and standard buses for outputting the electric signal under different light receiving areas and different illumination intensities are manufactured. The specific steps are to measure the light intensity of the light source 2 when emitting light normally, for example, the normal light intensity of the light source 2 is 50lx, and to measure the electric signals output by different light receiving areas under each illumination intensity of 0-50lx, that is, the electric signals output by the photoelectric elements 5 with different light receiving areas under 50lx light intensity, the electric signals output by the photoelectric elements 5 with different light receiving areas under 49.9lx light intensity, the electric signals output by the photoelectric elements 5 with different light receiving areas under 49.8lx light intensity, and so on.
S4: by taking the electrical signal received by the photoelectric element 5 in the independent cavity without the through hole 11 below the transverse partition plate 3 as a reference, the illumination intensity of the light emitted by the light source 2 through the light-transmitting opening 31 is obtained according to the measured reference bus;
s5: selecting standard buses corresponding to the output electric signals of the photoelectric elements 5 with different light receiving areas under the illumination intensity by taking the obtained illumination intensity as a reference;
s6: at the same time, the light receiving area of the electro-optical element 5 at the spinning 9 side at the time is obtained according to the electrical signal output by the electro-optical element 5 at the spinning 9 side and the standard bus selected in S5.
Since the existence of the spun yarn 9 blocks the optical fiber, the light receiving area of the photoelectric element 5 changes.
S7: subtracting the light receiving area measured in S6 from the light receiving area of the photoelectric element 5 on the spinning 9 side without shielding to obtain the shielding area of the shadow formed by the spinning 9;
s8: the shielding area of the shadow formed by the spinning 9 is compared with a preset threshold value, when the shielding area is smaller than the preset threshold value, the ejection mechanism 6 performs one-time telescopic action to eject the spinning 9 to the collodion inkpad 7, red marks are left at two ends of the spinning 9, the thin but unbroken part of the spinning is marked, the spinning machine stops running, and meanwhile the early warning module 10 performs early warning prompt.
The threshold value is an empirical value, that is, when the shadow area (shadow area is corresponding to the thickness of the spun yarn 9) cast by the spun yarn 9 is smaller than the threshold value, the warning prompt is performed.
The method can not only realize early warning when the spinning is broken, but also realize early warning notification when the spinning is thin but not broken, and the staff can process the thin part in advance, thereby ensuring the quality of the product.
In addition, in the method, the photoelectric element 5 on the side without the through hole 11 is used as a reference for measurement, so that the situation of false measurement and false alarm caused by the fact that the output electric signal of the photoelectric element 5 is reduced after the light intensity of the light source irradiation is changed can be effectively avoided.
Further, when the shielding area for forming the shadow of the spun yarn 9 in the S8 is smaller than the preset threshold value, the external textile machine further conveys the spun yarn 9 forward for a distance of 2L-3L, and then stops running, wherein L is the length of the shell 1; the arrangement can lead the marking section of the inkpad of the spinning 9 to penetrate out of the shell 1, thereby being convenient for the staff to process the thinner section of the spinning.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a weaving broken yarn check out test set, includes casing (1), its characterized in that, the inside of casing (1) is along horizontal separation for three cavity, and light source (2) are installed at the top of middle part cavity, the below of light source (2) is equipped with transverse baffle (3), transverse baffle (3) are fixed in on the inner wall of casing (1) middle part cavity, set up two sets of printing opacity openings (31) on transverse baffle (3), printing opacity opening (31) symmetry is located the both sides of light source (2), longitudinal baffle (4) are installed to the lower extreme of transverse baffle (3), longitudinal baffle (4) are located between two printing opacity openings (31), separate transverse baffle (3) below space into left and right sides two independent cavities, and photoelectric element (5) are all installed to the bottom of left and right sides two independent cavities, casing (1) transversely run through and set up perforation (11) that are used for passing spinning (9), the through hole (11) is positioned on one side of the longitudinal partition plate (4), the cavities positioned on two sides of the middle cavity of the shell (1) are respectively provided with a marking mechanism and a tension detection mechanism (8), and the marking mechanism and the tension detection mechanism (8) correspond to the through hole (11);
the marking mechanism comprises a pushing mechanism (6) and a collodion inkpad (7), the collodion inkpad (7) and the tension detection mechanism (8) are arranged at the bottom or the top of the cavity at the same side, and the pushing mechanism (6) is positioned at the opposite side of the collodion inkpad (7) and corresponds to the collodion inkpad in position;
the side part of the shell (1) is provided with an early warning module (10).
2. The textile broken yarn detection device according to claim 1, wherein the tension detection mechanism (8) comprises a hollow shell (81), a bolt (82), a lifting plate (83), a longitudinal sliding plate (84), a connecting rod (85), a pressure sensor (86), a concave wheel (87) and an elastic member (88), sliding grooves (811) are formed in two sides of an inner cavity of the hollow shell (81), the top end of the hollow shell (81) is connected with the bolt (82) in a threaded manner, the lower end of the bolt (82) is rotatably connected with the lifting plate (83), first sliding blocks (831) are arranged on two sides of the lifting plate (83), the longitudinal sliding plate (84) is arranged below the lifting plate (83), second sliding blocks (841) are arranged on two sides of the longitudinal sliding plate (84), and the first sliding blocks (831) and the second sliding blocks (841) are both connected in the sliding grooves (811) in a sliding manner, an elastic piece (88) is arranged between the lifting plate (83) and the longitudinal sliding plate (84), the bottom of the longitudinal sliding plate (84) is fixedly connected with a connecting rod (85), the connecting rod (85) penetrates through the bottom of the hollow shell (81), the bottom of the connecting rod (85) is connected with a concave wheel (87) used for clamping and connecting the spinning yarn (9), and a pressure sensor (86) is installed at the bottom of an inner cavity of the hollow shell (81).
3. The textile broken yarn detection device according to claim 1, wherein the housing (1) is provided with an opening for mounting the collodion ink pad (7), and the collodion ink pad (7) is detachably mounted on the housing (1) through a bolt.
4. The textile broken yarn detection device according to claim 1, characterized in that the ejector mechanism (6) is composed of an electric telescopic mechanism and an ejector block fixed at the telescopic end of the electric telescopic mechanism.
5. The textile broken yarn detection device according to claim 1, characterized in that the early warning module (10) is composed of a flashing light and a buzzer.
6. A yarn breakage detection method based on the textile yarn breakage detection device of any one of claims 1 to 5, characterized by comprising the following steps:
s1: detecting the tension of the spinning (9) through a tension detection mechanism (8), when the tension of the spinning (9) is smaller than a preset magnitude, giving an early warning prompt by an early warning module (10), stopping the operation of the spinning machine at the same time, and otherwise executing S2;
s2: measuring the electric signals output by the photoelectric element (5) under different light intensities, and manufacturing a standard bus;
s3: measuring electric signals output by different light receiving areas of the photoelectric element (5) under various illumination intensities, and respectively manufacturing standard buses;
s4: the electric signal received by the photoelectric element (5) in the independent cavity without the through hole (11) below the transverse partition plate (3) is taken as a reference, and the illumination intensity of the light emitted by the light source (2) through the light-transmitting opening (31) is obtained according to the measured reference bus;
s5: selecting standard buses corresponding to the output electric signals of the photoelectric elements (5) with different light receiving areas under the illumination intensity by taking the obtained illumination intensity as a reference;
s6: at the same moment, the light receiving area of the photoelectric element (5) at the spinning (9) side at the moment is obtained according to the electric signal output by the photoelectric element (5) at the spinning (9) side and the standard bus selected in S5;
s7: subtracting the light receiving area measured in S6 from the light receiving area of the photoelectric element (5) at the spinning (9) side without shielding to obtain the shielding area of the shadow formed by the spinning (9);
s8: the shielding area of the shadow formed by the spinning (9) is compared with a preset threshold, when the shielding area is smaller than the preset threshold, the ejection mechanism (6) stretches and retracts once, the spinning machine stops running, and meanwhile the early warning module (10) gives an early warning prompt.
7. The method of claim 6, wherein when the shadow area of the spun yarn (9) formed into a shadow in S8 is smaller than a predetermined threshold value, the spinning machine stops after the outer spinning machine further feeds the spun yarn (9) forward for a distance of 2L to 3L, where L is the length of the housing (1).
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| CN207130423U (en) * | 2017-09-01 | 2018-03-23 | 江西华源新材料股份有限公司 | A kind of warp machine tension detecting apparatus |
| CN109322018A (en) * | 2018-10-25 | 2019-02-12 | 江苏理工学院 | A kind of yarn broken end on-line measuring device and spinning machine |
| CN210163574U (en) * | 2018-12-05 | 2020-03-20 | 福建省尤溪县鸿纬布业有限公司 | Spinning yarn-breaking automatic stop device |
| WO2020200334A1 (en) * | 2019-03-29 | 2020-10-08 | Rieter Cz S.R.O. | Method of contactless optical detection of yarn at a workstation of a yarn manufacturing textile machine, an optical sensor of yarn and a textile machine |
| CN210262139U (en) * | 2019-05-28 | 2020-04-07 | 浙江云泰纺织有限公司 | Spinning frame with adjustable LED lamp |
| CN213357856U (en) * | 2020-09-18 | 2021-06-04 | 常州百鼎纺织科技有限公司 | Wire detector |
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