CN218880169U - Broken filament detection and recognition device for cigarette tows - Google Patents
Broken filament detection and recognition device for cigarette tows Download PDFInfo
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- CN218880169U CN218880169U CN202223437731.1U CN202223437731U CN218880169U CN 218880169 U CN218880169 U CN 218880169U CN 202223437731 U CN202223437731 U CN 202223437731U CN 218880169 U CN218880169 U CN 218880169U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a disconnected silk detection recognition device of cigarette silk bundle, in order to realize the detection that can be accurate fast and discernment single bunch silk bundle broken silk in high-speed spinning production. The detection and identification device comprises a horizontal bracket, a vertical bracket and a detection and identification unit; the horizontal bracket is fixedly provided with one side of the guide wire component through which the single-bundle tow band passes and is positioned below the transmission path of the single-bundle tow band after preparation; the lower end of the vertical bracket is connected with the horizontal bracket; the detection and identification unit comprises an optical fiber probe, a laser sensor and two optical fibers for communication between the optical fiber probe and the laser sensor; the optical fiber probe is arranged at the upper end of the vertical bracket, and the detection end of the optical fiber probe is used for aligning the single-bundle tow band; the laser sensor transmits light to the optical fiber probe through one optical fiber to form light spots to irradiate on the single-bundle tow band, the reflected light is detected by the optical fiber probe and then transmitted back to the laser sensor through the other optical fiber, and the light spots are used for detecting and identifying whether the single-bundle tow band is broken or not.
Description
Technical Field
The utility model relates to a broken yarn detects recognition device, concretely relates to broken yarn of diacetate fiber silk bundle for cigarette detects recognition device.
Background
The cigarette diacetate fiber industry mainly adopts a dry spinning method to produce diacetate fiber tows, and the main production process comprises the following steps: firstly, dissolving a diacetic sheet in an acetone solution to form a spinning solution, and adding a filter aid and a delustering agent into the spinning solution while dissolving the diacetic sheet; and then, carrying out multi-stage compression filtration treatment on the solution to remove colloid and solid impurities in the spinning solution, and then spraying the spinning solution from a spinning nozzle at a fixed flow rate by using a metering pump. Bundling single tows sprayed by a plurality of spinning nozzles into a tow band with certain specification and denier through doubling, and then enabling the formed tow band to enter a crimping machine for crimping; and finally, heating the mixture in a dryer to evaporate residual acetone and water to form dry finished product tows.
Generally, a tow band meeting the specification and denier required by a user needs 20-40 single tows to be bundled, and if the production scale of a production line is large, hundreds or even thousands of single tows are simultaneously spun and run at high speed. The single-beam filament bundle can generate filament breakage due to incomplete filtration of spinning solution impurities, variation of spinning air quantity, poor spinning of a metering pump, poor oiling and the like in the process of high-speed spinning (the speed can reach 600 m/min). After the single tows break, the denier of the whole tow band is affected, and at this time, a certain single tow with broken filaments needs to be identified, found and reported to field operators and a background control system in time. The operator needs to perform the yarn breaking treatment as soon as possible, and the background control system needs to perform the yarn spraying and accelerating treatment or the yarn supplementing treatment within a very short time so as to ensure the denier and the specification of the whole tow band.
The traditional broken yarn detection and identification device is realized through a mechanical contact switch, a single tow needs to be contacted with the switch in the spinning process and a certain tension is given to press the contact switch, and the switch is loosened after the broken yarn occurs to form an open circuit and generate a signal, and then the broken yarn is identified and found through the processing of background equipment such as a PLC (programmable logic controller).
Due to the characteristics of a large number of single tows in a production line, high spinning speed and high requirement on automation degree, a background control system needs to receive a broken filament signal in a very short time, and along with the development trend that the requirements on broken filament management and control of the production line are higher and higher, a more efficient broken filament detection and identification device is needed to realize the functions of identifying, finding and outputting the broken filament.
SUMMERY OF THE UTILITY MODEL
The utility model discloses broken silk detects recognition device is in order to realize can be fast accurate detection and discernment single bunch silk bundle broken silk in high-speed spinning production, and provides a broken silk of silk bundle detects recognition device for cigarette.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a broken filament detection and recognition device for cigarette tows is characterized in that: the device comprises a horizontal bracket, a vertical bracket and a detection and identification unit;
the horizontal bracket is fixedly provided with one side of the guide wire component through which the single-bundle tow band passes and is positioned below the transmission path of the single-bundle tow band after preparation;
the lower end of the vertical bracket is connected with the horizontal bracket;
the detection and identification unit comprises an optical fiber probe, a laser sensor and two optical fibers for communication between the optical fiber probe and the laser sensor;
the optical fiber probe is arranged at the upper end of the vertical bracket, and the detection end of the optical fiber probe is used for aligning to the single-bundle tow band;
the laser sensor transmits light emitted by the laser sensor to the optical fiber probe through one optical fiber to form light spots to irradiate on the single-bundle tow band, the reflected light is reflected by the single-bundle tow band, is detected by the optical fiber probe and then is transmitted back to the laser sensor through the other optical fiber, and the reflected light is processed by the laser sensor and then is used for detecting and identifying whether the single-bundle tow band is broken or not.
Furthermore, a hollow cylinder matched with the outer diameter of the optical fiber probe is welded at the upper end of the vertical support, and the optical fiber probe is placed in the hollow cylinder; the optical fiber probe is externally provided with a metal shell package, the whole body of the metal shell is provided with external threads, and the optical fiber probe is fixed in the hollow cylinder through a special nut for the optical fiber probe.
Furthermore, the horizontal support is of an L-shaped structure, a through hole is formed in the shorter side of the horizontal support, and the horizontal support is fixedly connected with the guide wire assembly through a first bolt penetrating through the through hole and a threaded mounting hole formed in the mounting surface of the guide wire assembly.
Further, the length of the shorter side of the horizontal bracket is the same as the width of the mounting surface of the guide wire assembly.
Furthermore, the other longer edge of the horizontal bracket is provided with a long hole in the horizontal direction;
the lower end of the vertical support is provided with a long hole with an opening facing downwards, and the vertical support is connected with the horizontal support through a second bolt penetrating through the long hole with the opening at the lower end of the vertical support and the long hole in the horizontal support.
Further, the distance between the optical fiber probe and the single-bundle tow band is less than or equal to 15mm.
Further, the laser sensor is a visible red laser sensor, and the response time of the visible red laser sensor is 20 mus.
Furthermore, the optical fiber is an optical fiber capable of bending a non-glass light beam at a large angle for conduction.
Further, the photoelectric probe and the interface of the optical fiber with the photoelectric probe and the laser sensor are encapsulated by IP 68.
The utility model discloses compare prior art's beneficial effect is:
1. the utility model provides a disconnected silk detection recognition device of cigarette diacetate fibre silk bundle can be under the condition of contactless single bundle tow band, through visible infrared light to the high-speed single bundle tow band have the broken silk monitor and discern to the combination through the installing support is adjusted and can be satisfied in less space, realize the single bundle tow band of different width, the disconnected silk of the single bundle tow band of different high positions detects, can extensively be applicable to the various use scenes of production line.
2. The utility model discloses a broken silk detects recognition device needs to be discerned fast and the demand that detects based on the silk production line broken silk, has adopted high sensitivity, response time 20 mus's laser sensor, even also can realize the condition of the broken silk of silk bundle at very quick technology production line and be discerned by high efficiency, even under adverse circumstances such as dust or spraying, also can pass through the setting of laser sensor parameter, filters the reflection light volume of environment, realizes the reliable discernment of the broken silk of silk bundle.
3. The utility model discloses a broken filament detects recognition device installs in limited space between silk bundle and production facility, has adopted small, installs convenient, have metal protection's fiber probe to and but adopt the wide-angle optical fiber of buckling non-glass material's beam conduction, can be in production field single bundle silk bundle in large quantity, at the operating space of limited adjustment, satisfy the optic fibre wiring installation of the various positions of production line and realize broken filament and detect. Meanwhile, the IP68 packaging is adopted, so that water, oil stains and dust on a production line can be effectively isolated, and the method can be suitable for installation environments with complex working conditions.
4. The utility model discloses a non-contact illumination and reverberation carry out the detection discernment that has or not broken silk of silk ribbon, compare in the disconnected silk detection recognition device of current adoption contact mechanical switch formula, need not to detect recognition device and single silk bundle belt contact, just can realize disconnected silk detection discernment, the single silk bundle belt of having avoided high-speed operation produces the friction with the mechanical switch contact and generates heat in a large number, the product quality's that arouses reduction has ensured the stability of production single silk bundle belt quality, the drawback that contact mechanical switch exists has been stopped completely.
Drawings
Fig. 1 is a first schematic structural diagram of an embodiment of a broken filament detection and identification device for a cigarette tow;
FIG. 2 is a schematic structural diagram II of an embodiment of the device for detecting and identifying broken filaments of the cigarette tow of the present invention;
reference numerals:
1-a guide wire component, 2-a horizontal bracket, 3-a first bolt, 4-a vertical bracket, 5-a second bolt, 6-a fiber probe, 7-a special nut for the fiber probe, 8-an optical fiber, 9-a single-beam tow band, 10-a guide rod, 11-a strip hole, 12-an opening strip hole and 13-a laser sensor.
Detailed Description
In order to make the objects, advantages and features of the present invention clearer, the following detailed description of the device for detecting and identifying broken filaments of cigarette tows according to the present invention is provided with reference to the accompanying drawings and specific embodiments. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
In the spinning production of the production line, the single-tow band is drawn into the next procedure after coming out from the previous procedure and passing through the guide rod 10 arranged on the yarn guide assembly 1, the single-tow band 9 with the width of about 3-5mm is formed by the single-tow band under the supporting action of the guide rod 10, the variety of the spinning production is not changed, and the width of the single-tow band 9 is different.
Whether the detection that can be accurate fast and discernment single bundle tow band 9 takes place the broken silk in order to realize in high-speed spinning production, the utility model discloses a design does: under the condition of not contacting the single-strand silk bundle belt 9, the visible red light is used for detecting and identifying the existence of the single-strand silk bundle belt 9 running at high speed, and the combined adjustment of the mounting bracket can meet the detection and identification of the single-strand silk bundle belt 9 with different widths and different height positions in a smaller space, and can be widely applied to various use scenes of a production line.
As shown in fig. 1, the broken filament detecting and identifying device for a cigarette tow provided by this embodiment includes a horizontal bracket 2, a vertical bracket 4, and a detecting and identifying unit.
The lower extreme of vertical support 4 has been seted up opening rectangular hole 12 that the opening faced down, rectangular hole 11 has been seted up to another border horizontal direction of horizontal stand 2, second bolt 5 passes vertical support 4 lower extreme opening rectangular hole 12 and the rectangular hole 11 on the horizontal stand 2 and assembles the connection with vertical support 4 and horizontal stand 2, form a support combination that can carry out distance and height adjustment simultaneously, adjust the position that links firmly of second bolt 5 rectangular hole 11 on horizontal stand 2 and vertical support 4 lower extreme opening rectangular hole 12, realize that the single-beam band 9 through wire guiding component 1 is in the visual field of the detecting element of vertical support 4 upper end installation.
Through the installation of above two steps, the broken silk detection recognition device of this embodiment has just been installed and has been accomplished, through the ingenious design and the combination of a plurality of spare part, has realized the high-speed, the high accuracy discernment of single bundle tow band 9 in limited space to can carry out the transmission of signal by the efficient.
As shown in fig. 2, the detection unit includes a fiber probe 6, a laser sensor 13, and two optical fibers 8 for communication between the fiber probe 6 and the laser sensor 13. The upper end of the vertical support 4 is welded with a hollow cylinder matched with the outer diameter of the optical fiber probe 6, a metal shell package is arranged outside the optical fiber probe 6, the whole body of the metal shell is provided with external threads, the optical fiber probe 6 is arranged in the hollow cylinder at the two ends of the hollow cylinder by adopting special nuts 7 for the optical fiber probe, and the optical fiber probe 6 faces to the single-bundle tow band 9.
The front end of the photoelectric probe 6 is integrated with light emitting and reflected light receiving functions, the tail part of the photoelectric probe is provided with two optical fibers 8 which are connected with a laser sensor 13, one optical fiber transmits emitted light, and the other optical fiber transmits reflected light detected by the photoelectric probe 6. Visible light emitted by the laser sensor 13 transmits emitted light to the front end of the photoelectric probe 6 through the optical fiber 8, the visible light is emitted by the photoelectric probe 6 to form light spots, the light spots irradiate on the single-beam tow band 9, and reflected light is detected by the photoelectric probe 6 after being reflected by the single-beam tow band 9 and is transmitted to the laser sensor 13.
The heights of the single tows 9 at different positions on the production line on the guide rod 10 of the guide wire assembly 1 are different. In order to ensure that light emitted by the optical fiber probe 6 can accurately irradiate on the single-beam tow bands 9 with different heights, the height of the vertical support 4 can be adjusted through the opening strip hole 12, so that the height of the optical fiber probe 6 can be adjusted, the vertical support 4 can be installed through the opening under the condition that the second bolt 5 is only loosened but not completely removed, and daily assembling and disassembling operations of the optical fiber probe 6 are more convenient in a limited space.
In daily operation, in order to improve the accuracy of broken wire detection, the horizontal support 2 and the vertical support 4 need to be adjusted in a combined manner, so that the single tows 9 are positioned in the middle of a light spot, and the distance (less than or equal to 15 mm) is adjusted, so that the phenomenon of broken wire error identification cannot occur even if the ribbon fluctuates or slight high-low position deviation occurs. As long as the single tow 9 does not have large displacement or fluctuation, the broken filament detection and identification device of the embodiment does not need to adjust the position or connection, when the single tow 9 is broken, no reflected light of the whole device is transmitted back to the laser sensor 13, and the system can immediately identify and send out an alarm signal.
But optic fibre 8 adopts the non-glass material of wide-angle bending to satisfy the optic fibre wiring installation of the various positions of production line, adopt IP68 encapsulation to seal photoelectric probe 6 and optic fibre 8 and photoelectric probe 6 and laser sensor 13's kneck simultaneously, can effectively completely cut off water, greasy dirt and dust on the production line, can be applicable to the more complicated installation environment of operating mode.
The light emitted by the laser sensor 13 is visible red light, so that light spots can be conveniently irradiated on the single-strand silk bundle belt 9 to be visible by naked eyes, and the adjustment of the broken silk detection and identification devices of the single-strand silk bundle belts 9 at different heights can be referred to the visible light spots, so that the single-strand silk bundles are in the light spot irradiation range. Compared with the detection means such as invisible light or radar signal reflection, the visible light has the advantage that an operator can easily see whether the position of the bracket or the optical fiber probe 6 of the broken wire detection and identification device is in the correct position in daily routing inspection so as to maintain the broken wire in time, and the method brings great benefits for improving the labor efficiency of a large-scale production line.
Theoretically, when the single-tow band 9 is broken, the energy of reflected light should be 0, but because the reflection of light is affected by the environment or dust in the air, the reflection amount of the reflected light in the production line environment always has a certain value, at this time, an alarm threshold value is required to be set on the laser sensor 13 according to the environment working condition of the production line, the alarm threshold value is the size of the environment reflected light energy filtered out, the laser sensor 13 compares the actually received energy of the reflected light with the alarm threshold value, and if the received energy of the reflected light is greater than the alarm threshold value, the single-tow band 9 is considered not broken and does not give an alarm; otherwise, the single-tow band 9 is considered to be broken and alarm, and the detection, identification and alarm of whether the single-tow band 9 is broken are realized. The light intensity of the laser sensor 13 can be adjusted in different steps to adapt to various production environments.
The laser sensor 13 is composed of a laser, a laser detector and a measuring circuit, and the laser sensor with high sensitivity and response time of 20 μ s is adopted in the embodiment, so that whether the single-beam tow band is broken or not can be detected in a non-contact and long-distance manner, and the method has the advantages of high response speed, high precision, large measuring range, strong light and electric interference resistance and the like, and can realize detection and identification in time under severe environments such as dust or spray.
The existing broken wire detection and identification device adopts a contact mechanical switch type identification system, namely, a single-beam tow band is in contact with a switch of a broken wire detector, the switch is closed, and a sensor receives a closing signal and identifies that the broken wire is not broken. When the wire breakage occurs, the switch is disconnected, and the sensor receives the disconnection signal and recognizes that the wire breakage occurs. Mechanical switch type identification systems must be in contact with the ribbon for detection purposes, and contact with the individual strands of ribbon running at high speed can cause friction and significant heating. On one hand, friction and heat damage the silk ribbon, thereby reducing the product quality, and on the other hand, long-time operation can cause abrasion to the contact part of the switch, and the switch needs to be replaced regularly.
The broken wire detection and identification device provided by the embodiment adopts non-contact illumination and reflected light at the detection end to detect and identify the existence of a ribbon, so that the defects of the contact type mechanical switch are completely eliminated.
Each single-strand silk bundle belt 9 on the actual production site needs to be guided and supported by the corresponding silk guide assembly 1, the single-strand silk bundle belts are integrated under the condition that silk is not broken, and when the silk guide assembly 1 is adjusted in left and right displacement, the single-strand silk bundle belts 9 correspondingly move at the same time.
Compared with the original contact type broken wire detection and identification device, the position of the broken wire detection and identification device needs to be readjusted after each moving operation of the wire guide assembly because the broken wire detection and identification device and the wire guide assembly 1 are not formed into a whole. The broken wire detection and identification device of the embodiment is also integrated with the whole guide wire assembly 1 after being installed on the guide wire assembly 1. Under normal production condition, after optical fiber probe 6 has adjusted the position, when carrying out whole seal wire assembly 1's displacement adjustment again, the disconnected silk detection recognition device of this embodiment also follows the bulk movement to after daily frequent seal wire assembly 1 removes the operation, need not carry out position adjustment to the disconnected silk detection recognition device of this embodiment again.
The left and right positions of the vertical bracket 4 can be adjusted through the strip hole 11 on the horizontal bracket 2, thereby adjusting the distance between the optical fiber probe 6 and the single-bundle tow band 9. The distance can influence the reflection amount of light, the reflection amount of light is in inverse proportion to the distance between the laser sensor and the single-beam tow band, the closer the distance between the laser sensor and the single-beam tow band is, the larger the reflection amount of light is, the higher the light signal value received by the laser sensor 13 is, when the single-beam tow band 9 fluctuates, such as the branching and thinning conditions, a certain light reflection amount still exists, the laser sensor 13 still can receive signals, and the phenomenon of false identification of the broken filaments can not occur. Conversely, the farther the distance between the two, the smaller the amount of light reflected, the higher the probability that the fluctuation of the single ribbon 9 will be misidentified. Of course, the widths of the single tows 9 of different products are different, and under the condition that the distance between the optical fiber probe 6 and the single tow band 9 is fixed, the smaller the width of the single tow band 9 is, the smaller the light reflection amount is, the more easily the band is recognized by mistake when fluctuating (the fiber is not broken, but the laser sensor 13 may think that the single tow band is not detected because the reflection light amount is small, and a wrong broken fiber signal is sent out), so that the distance between the optical fiber probe 6 and the single tow band 9 needs to be adjusted at this time, and the long-strip hole 11 on the horizontal bracket 2 solves the problem simply.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the present invention.
Claims (9)
1. The utility model provides a disconnected silk detection recognition device of cigarette silk bundle which characterized in that: comprises a horizontal bracket (2), a vertical bracket (4) and a detection and identification unit;
the horizontal bracket (2) is fixedly arranged on one side of the wire guide assembly (1) and is positioned below a transmission path of the prepared single-bundle tow band (9);
the lower end of the vertical support (4) is connected with the horizontal support (2);
the detection and identification unit comprises an optical fiber probe (6), a laser sensor (13) and two optical fibers (8) for communication between the optical fiber probe (6) and the laser sensor (13);
the optical fiber probe (6) is arranged at the upper end of the vertical bracket (4), and the detection end of the optical fiber probe (6) is used for aligning the single-bundle tow band (9);
the laser sensor (13) is used for detecting and identifying whether the single-tow band (9) is broken or not, emitting light is transmitted to the optical fiber probe (6) through one optical fiber (8) to form light spots to irradiate on the single-tow band (9), reflected light is reflected by the single-tow band (9), is detected by the optical fiber probe (6), and is transmitted back to the laser sensor (13) through the other optical fiber (8).
2. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 1, characterized in that:
the upper end of the vertical support (4) is welded with a hollow cylinder matched with the outer diameter of the optical fiber probe (6), and the optical fiber probe (6) is placed in the hollow cylinder; the optical fiber probe (6) is externally provided with a metal shell package, the whole body of the metal shell is provided with external threads, and the optical fiber probe (6) is fixed in the hollow cylinder through a special nut (7) for the optical fiber probe.
3. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 2, wherein:
the horizontal support (2) is of an L-shaped structure, a through hole is formed in the shorter side of the horizontal support (2), and the horizontal support (2) is fixedly connected with the guide wire assembly (1) through a first bolt (3) penetrating through the through hole and a threaded mounting hole formed in the mounting surface of the guide wire assembly (1).
4. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 3, wherein:
the length of the shorter side of the horizontal bracket (2) is the same as the width of the mounting surface of the guide wire component (1).
5. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 4, wherein:
the other longer edge of the horizontal bracket (2) is provided with a long hole (11) in the horizontal direction;
the lower end of the vertical support (4) is provided with an opening strip hole (12) with a downward opening, and the vertical support (4) is connected with the horizontal support (2) through a second bolt (5) penetrating through the opening strip hole (12) at the lower end of the vertical support (4) and a strip hole (11) in the horizontal support (2).
6. The device for detecting and identifying broken tobacco threads of tobacco tows as claimed in any one of claims 1 to 5, wherein:
the distance between the optical fiber probe (6) and the single-bundle tow band (9) is less than or equal to 15mm.
7. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 6, wherein:
the laser sensor (13) is a visible red laser sensor, and the response time of the visible red laser sensor is 20 mu s.
8. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 7, wherein:
the optical fiber (8) is a bendable optical fiber.
9. The device for detecting and identifying broken filaments of cigarette tows as claimed in claim 8, wherein:
and the interfaces of the optical fiber probe (6) and the optical fiber (8) with the optical fiber probe (6) and the laser sensor (13) are encapsulated by IP 68.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223437731.1U CN218880169U (en) | 2022-12-21 | 2022-12-21 | Broken filament detection and recognition device for cigarette tows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223437731.1U CN218880169U (en) | 2022-12-21 | 2022-12-21 | Broken filament detection and recognition device for cigarette tows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218880169U true CN218880169U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223437731.1U Active CN218880169U (en) | 2022-12-21 | 2022-12-21 | Broken filament detection and recognition device for cigarette tows |
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| Country | Link |
|---|---|
| CN (1) | CN218880169U (en) |
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2022
- 2022-12-21 CN CN202223437731.1U patent/CN218880169U/en active Active
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