Spinning equipment

Abstract

To easily measure a temperature of a spinneret without contact.SOLUTION: There is provided a spinning equipment, comprising: a spinning device 3 having a spinneret 31 that spins out yarn Y; a reflector 8 that is positioned at a position where infrared rays emitted from the spinneret 31 are incident and that reflects the incident infrared rays; and a thermal camera 9 that can measure a temperature distribution of the spinneret 31 by receiving the infrared rays reflected by the reflector 8. The reflector 8 and the thermal camera 9 are arranged on either side of a yarn path of the yarn Y spun out from the spinneret 31. The thermal camera 9 is provided on a mobile object 10 that is configured to be movable.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a spinning installation for producing yarns. [Background technology]

[0002] Patent Document 1 discloses a spinning facility equipped with a spinning device that spins yarn. The spinning facility is configured so that a spinning pack can be attached and detached. The spinning facility supplies a high-temperature molten polymer to the attached spinning pack and spins it from a nozzle formed in a spinneret of the spinning pack. In such a spinning facility, periodic maintenance such as cleaning of the spinneret is required. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-53671 Summary of the Invention [Problem to be solved by the invention]

[0004] The quality of yarn produced in the spinning equipment described above varies depending on the temperature of the spinneret. For example, when yarn production is restarted after spinneret maintenance, the spinneret temperature drops, and the quality of the yarn spun from the spinning device is low. Therefore, the yarn spun from the spinning device must be discarded until the spinneret temperature rises sufficiently. The time for discarding the yarn is determined empirically, and it is unclear whether it is appropriate. Therefore, it is possible to attach a thermocouple to the spinneret to measure the spinneret temperature. However, the spinneret is densely formed with nozzles that discharge molten polymer, making it difficult to attach a thermocouple in a position where it will not come into contact with the polymer. To solve this problem, it is also possible to install an infrared sensor below the spinneret and directly measure the spinneret temperature without contact. In this case, the infrared sensor needs to be positioned where infrared rays emitted from the spinneret enter. Therefore, the infrared sensor should be located near the yarn path of the yarn spun from the spinneret. As a result, problems occur in that the infrared sensor may be damaged by the falling high-temperature molten polymer, or the infrared sensor may become dirty with falling lint, making it impossible to measure temperature.

[0005] An object of the present invention is to provide a spinning facility that allows the temperature of the spinneret to be easily determined without contact. [Means for solving the problem]

[0006] A spinning facility according to a first aspect of the present invention comprises a spinning device having a spinneret for spinning yarn, a reflector disposed at a position where infrared rays emitted from the spinneret are incident and reflect the incident infrared rays, and an infrared sensor capable of measuring the temperature of the spinneret by receiving the infrared rays reflected by the reflector, the reflector and the infrared sensor being disposed on either side of a yarn path for the yarn spun from the spinneret.

[0007] In the present invention, the reflector is positioned relatively close to the yarn path so that infrared rays emitted from the spinneret are incident thereon. Meanwhile, the infrared sensor may be positioned to receive the infrared rays reflected by the reflector. Therefore, the infrared sensor can be positioned relatively far from the yarn path, on the opposite side of the yarn path from the reflector. This reduces the likelihood of problems such as the infrared sensor being damaged by high-temperature molten polymer or becoming unable to measure temperature due to contamination of the infrared sensor by lint. Therefore, the temperature of the spinneret can be easily determined without contact.

[0008] In the spinning equipment according to a second aspect of the present invention, in the first aspect of the present invention, the infrared sensor is capable of measuring the temperature distribution of the spinneret.

[0009] In the present invention, by measuring the temperature distribution of the spinneret with an infrared sensor, it is possible to determine whether or not there is temperature unevenness in the spinneret, etc. Therefore, it is possible to reliably prevent the production of low-quality yarn.

[0010] In the spinning equipment according to a third aspect of the present invention, in the first or second aspect of the present invention, the reflector can reflect the infrared rays emitted from each of the plurality of spinnerets.

[0011] In the present invention, the reflector reflects the infrared rays emitted from each of the multiple spinnerets. Therefore, the infrared sensor can measure the temperatures of the multiple spinnerets by receiving the infrared rays reflected by the reflector. Therefore, the temperature variation between the spinnerets can be easily grasped.

[0012] The spinning equipment of the fourth invention is any one of the first to third inventions, wherein the infrared sensor is capable of simultaneously receiving the infrared rays emitted from each of the multiple spinnerets and reflected by one or more of the reflectors.

[0013] In the present invention, the infrared sensor can measure the temperatures of multiple spinnerets at once, thereby shortening the measurement time.

[0014] The spinning equipment of the fifth invention is any one of the first to fourth inventions, and is provided with a movable body configured to be movable, and the infrared sensor is provided on the movable body, and as the movable body moves, the infrared sensor can receive infrared rays emitted from each of the multiple spinnerets and reflected by one or more of the reflectors.

[0015] In the present invention, the infrared sensor can measure the temperatures of a plurality of spinnerets by moving the moving body.

[0016] The spinning equipment of the sixth invention is the same as that of the fifth invention, and is provided with a plurality of the spinning devices arranged in one direction, the movable body is capable of moving across the plurality of spinning devices, and the infrared sensor is capable of measuring the temperature of the spinnerets of the plurality of spinning devices as the movable body moves.

[0017] In the present invention, the infrared sensor attached to the movable body can measure the temperatures of the spinnerets of the plurality of spinning devices by moving the movable body, and therefore, when a plurality of spinning devices are arranged in one direction, it is not necessary to provide an infrared sensor for each spinning device.

[0018] The spinning equipment of the seventh invention is any of the first to sixth inventions, and is provided with a cooling device that is arranged below the spinning device and cools the yarn spun out from the spinneret, and the reflector is arranged below the cooling device.

[0019] When a cooling device is located below the spinning apparatus, in order to directly measure the temperature of the spinneret with an infrared sensor, the infrared sensor needs to be installed closer to the yarn path. This increases the risk of the infrared sensor being damaged by falling high-temperature molten polymer or becoming dirty with falling lint, making it impossible to measure the temperature. Therefore, it is more effective to apply the present invention in which a reflector, which is more resistant to damage and dirt than the infrared sensor, is installed near the yarn path, the infrared rays emitted from the spinneret are reflected by the reflector, and the reflected infrared rays are received by the infrared sensor.

[0020] The spinning equipment according to the eighth invention is any one of the first to seventh inventions, and further comprises an oil application device disposed below the spinning device and having an oil supply guide that applies oil to the yarn spun from the spinneret, and the reflector is attached to the oil application device.

[0021] There is a relatively large space around the oil application device, so in the present invention, it is easy to attach a reflector.

[0022] In the spinning equipment of the ninth invention, in the eighth invention, the oil application device further has a cover arranged above the oil supply guide and configured to be movable between a position not covering the oil supply guide and a position covering the oil supply guide, and the cover functions as the reflector.

[0023] In the present invention, the cover of the oil agent application device is used as a reflector, thereby reducing the number of parts.

[0024] In the spinning equipment according to the tenth invention, in any one of the first to ninth inventions, the reflector is provided so as to be movable up and down, and is equipped with an angle adjustment mechanism that adjusts the angle at which the infrared rays are reflected by the reflector.

[0025] In the present invention, even if the position of the reflector in the vertical direction changes, the angle of reflection of infrared rays from the reflector can be adjusted using the angle adjustment mechanism, so that the infrared rays emitted from the spinneret can be reflected by the reflector to the infrared sensor.

[0026] In the spinning equipment according to an eleventh aspect of the present invention, in the tenth aspect of the present invention, the infrared sensor is provided so as to be movable up and down.

[0027] In the present invention, the infrared sensor can be moved up and down in accordance with the vertical movement of the reflector, so that the infrared sensor can receive the infrared light reflected by the reflector at an optimal position. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a schematic diagram of a spinning facility according to an embodiment of the present invention. FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 2 is a side view showing the state in the vicinity of the spinning device during package production. [Figure 5] FIG. 2 is a side view showing the state in the vicinity of the spinning device during threading. [Figure 6] FIG. 2 is a side view showing the vicinity of the oil agent application device. [Figure 7] This is a grayscale image taken with a thermal camera. DETAILED DESCRIPTION OF THE INVENTION

[0029] A spinning equipment 1 according to a preferred embodiment of the present invention will be described below with reference to Figs. 1 to 6. The up-down direction of the paper in Fig. 1 is the up-down direction of the spinning equipment 1 (the vertical direction in which gravity acts). The left-right direction of the paper in Fig. 1 is the front-rear direction of the spinning equipment 1. The direction perpendicular to the paper in Fig. 1 is the left-rear direction of the spinning equipment 1. The front-rear direction and the left-rear direction are both directions along the horizontal direction. The front-rear direction and the left-rear direction are perpendicular to each other.

[0030] As shown in FIG. 1, the spinning equipment 1 is divided into a first floor (lower floor) and a second floor (upper floor) by a partition floor 2. The partition floor 2 has an opening 2a that connects the first and second floors. The spinning equipment 1 mainly comprises a spinning device 3 located on the second floor and a winding device 4 located on the first floor. The spinning equipment 1 is configured so that multiple synthetic resin yarns Y spun from the spinning device 3 are lowered to the first floor through the opening 2a, and the multiple yarns Y are wound by the winding device 4 to produce multiple packages P. The spinning equipment 1 is configured so that multiple spinning devices 3 and multiple winding devices 4 are lined up in the left-right direction. Note that only one spinning device 3 is shown in FIG. 2.

[0031] The spinning device 3 has a plurality of spinnerets 31. In this embodiment, the plurality of spinnerets 31 are arranged in two staggered rows along the left-right direction. The arrangement of the plurality of spinnerets 31 is not limited to a staggered row. The plurality of spinnerets 31 may also be arranged in a single row along the left-right direction.

[0032] A molten polymer in a high temperature state is extruded from nozzles (not shown) of a plurality of spinnerets 31, and a plurality of yarns Y are spun from one spinning device 3. More precisely, the thin yarns immediately after being ejected from the spinneret 31 are called filaments. A plurality of filaments spun from one spinneret 31 are bundled by an oil supply guide 61, which will be described later, to form a single yarn Y. In this embodiment, eight yarns Y are spun from a spinning device 3 having eight spinnerets 31, and eight packages P are formed by a winding device 4, but these numbers can be changed as appropriate.

[0033] As shown in FIG. 1, in addition to the spinning device 3, the second floor is provided with a cooling device 5 that cools the yarn Y spun from the spinneret 31, and an oil application device 6 having an oil supply guide 61 that applies an oil to the yarn Y spun from the spinneret 31.

[0034] The cooling device 5 is disposed below the spinning device 3. As shown in FIG. 2, the cooling device 5 has a plurality of cooling cylinders 51 arranged to correspond to the plurality of spinnerets 31. Each cooling cylinder 51 is disposed directly below the corresponding spinneret 31. Like the plurality of spinnerets 31, the plurality of cooling cylinders 51 are also arranged in two staggered rows along the left-right direction. More specifically, as shown in FIG. 3, two rows are formed, each consisting of four cooling cylinders 51 arranged in the left-right direction. The cooling cylinders 51 belonging to each row are positioned at different positions in the left-right direction. When the yarn Y spun from the spinneret 31 passes through the cooling cylinders 51, it is cooled and solidified by the gas supplied to the cooling cylinders 51.

[0035] The cooling device 5 is configured to be movable up and down by a moving mechanism (not shown). When producing the package P, the cooling device 5 is positioned so as to contact the lower end of the spinning device 3 (the position shown in FIG. 1). When performing maintenance such as cleaning the spinneret 31, the cooling device 5 is moved downward so that a working space is formed between the spinning device 3 and the cooling device 5.

[0036] The oil application device 6 is disposed below the cooling device 5. As shown in FIG. 2, the oil application device 6 has a plurality of oil supply guides 61 arranged in correspondence with the plurality of spinnerets 31. Like the plurality of spinnerets 31, the plurality of oil supply guides 61 are also arranged in two staggered rows along the left-right direction. The plurality of oil supply guides 61 are attached to brackets 61a extending along the left-right direction. The oil supply guides 61 apply oil to the yarn Y solidified by the cooling device 5.

[0037] As shown in Figures 2 and 4, the oil agent application device 6 further has a cover 62 arranged above the multiple oil supply guides 61. The cover 62 is a plate-shaped member extending in the left-right direction. The cover 62 is configured to be swingable around an axis extending in the left-right direction by a hinge. By swinging, the cover 62 can move between a retracted position (see Figure 4) in which it does not cover the multiple oil supply guides 61 and a covering position (see Figure 5) in which it covers the multiple oil supply guides 61. In the retracted position, the cover 62 is in a position where its thickness direction is approximately in the front-to-rear direction. At this time, the cover 62 is located rearward of the multiple cooling cylinders 51. In the covering position, the cover 62 is in a position where its thickness direction is approximately in the up-and-down direction.

[0038] The cover 62 is intended to prevent the plurality of yarns Y from becoming entangled with the oil supply guide 61 during the threading operation performed when starting production of a package P in the spinning equipment 1. That is, in the threading operation, first, an operator on the second floor lowers the plurality of yarns Y spun from the spinning device 3 through the opening 2a to the first floor, and an operator on the first floor sucks and holds the lowered plurality of yarns Y with a suction gun. Then, after the plurality of yarns Y have been sucked and held by the suction gun and tension is applied to them, the operator on the second floor hooks the plurality of yarns Y onto the respective oil supply guides 61. The operator on the first floor also hooks the plurality of yarns Y sucked and held by the suction gun onto each unit arranged on the first floor.

[0039] When performing the yarn threading operation as described above, the cover 62 is placed in the cover position (see FIG. 5) until the yarn is threaded onto the oil supply guide 61 so that the multiple yarns Y do not become entangled with the oil supply guide 61. When producing the package P, the cover 62 is maintained in the retracted position (see FIG. 4) so ​​as not to interfere with the multiple yarns Y.

[0040] The distance from the spinneret 31 to the oil supply guide 61 needs to be changed depending on the type of yarn Y to be produced. Therefore, the oil application device 6 is configured to be movable up and down. The movement mechanism of the oil application device 6 will be described below.

[0041] As shown in Figures 2 and 4, a wall member 11 is disposed below the cooling device 5. The wall member 11 is oriented such that its thickness direction is along the front-rear direction. The width (length along the left-right direction) of the wall member 11 is approximately the same as the width of the cooling device 5. A pair of left and right rails 12 are attached to the front surface of the wall member 11. Each rail 12 extends along the up-down direction. A slider 12a that can slide up and down along the rail 12 is fitted into each rail 12. The slider 12a may be configured to move up and down by a drive source such as a motor. Alternatively, an operating unit such as a handle that is operated by an operator may be provided, and the slider 12a may be moved up and down manually by the operator operating the operating unit.

[0042] A bracket 61a to which multiple oil supply guides 61 are attached is supported by two sliders 12a. In addition, a cover 62 is supported by the two sliders 12a via mounting members 62a. As a result, when the slider 12a moves up and down, the oil supply guides 61 and the cover 62 that constitute the oil agent applicator 6 move up and down.

[0043] As shown in Figures 2 and 4, a reflector 8 is attached to the cover 62. The reflector 8 is disposed at a position where infrared rays emitted from the spinnerets 31 are incident. In this embodiment, one reflector 8 is attached to the cover 62. One reflector 8 is disposed at a position where infrared rays emitted from all of the spinnerets 31 of one spinning device 3 are incident. That is, one reflector 8 is incident with infrared rays emitted from eight spinnerets 31.

[0044] The reflector 8 is capable of reflecting incident infrared rays. As will be described later, the thermal camera 9 receives the infrared rays reflected by the reflector 8. The reflector 8 is made of, for example, a metal. Among metals, it is preferable to use aluminum, silver, copper, etc., which have a relatively high reflectivity for infrared rays with wavelengths of 8 μm to 14 μm that can be captured by the thermal camera 9. Furthermore, when considering the availability of materials in addition to the reflectivity of infrared rays, it is also possible to use iron or stainless steel as the reflector 8. The material of the reflector 8 is not limited to those mentioned above.

[0045] As shown in Fig. 4, the reflector 8 is attached to the surface facing forward of the cover 62 when it is in the retracted position. As shown in Fig. 6, the angle of reflection of infrared rays of the reflector 8 can be adjusted by an angle adjustment mechanism 7. The angle adjustment mechanism 7 has, for example, a support shaft 71 extending in the left-right direction and an attachment member 72 that attaches the support shaft 71 to the cover 62. The reflector 8 is supported on the support shaft 71 so that it can swing around the support shaft 71. By swinging the reflector 8 around the support shaft 71, the orientation of the surface changes, and the angle of reflection of infrared rays changes.

[0046] Returning to Figure 1, a fiber separating guide 13 is located directly below the opening 2a of the partition floor 2. The fiber separating guide 13 is a comb-like guide that regulates the pitch of the multiple yarns Y that are lowered from the second floor through the opening 2a to a predetermined interval. Godet rollers 14 and 15 are located downstream of the fiber separating guide 13 in the yarn running direction. The godet rollers 14 and 15 are each driven to rotate by a motor (not shown). The multiple yarns Y are sent to the winding device 4 by the godet rollers 14 and 15.

[0047] The winding device 4 includes a turret 41, two bobbin holders 42, a traverse device 43, a contact roller 44, etc. The two bobbin holders 42 are rotatably supported on the turret 41. As the turret 41 rotates, the positions of the two bobbin holders 42 are switched between up and down. A plurality of bobbins B are attached to each of the bobbin holders 42. The traverse device 43 has a plurality of traverse guides 43a corresponding to the respective bobbins B attached to the bobbin holders 42. As each traverse guide 43a moves back and forth, the yarn Y is traversed around the corresponding fulcrum guide 45 and wound onto the bobbin B to form a package P. The contact roller 44 comes into contact with the plurality of packages P formed on the upper bobbin holder 42 and applies contact pressure to each of the plurality of packages P.

[0048] As shown in FIG. 4, the spinning equipment 1 includes a traveling body 10 that travels on a partition floor 2 on the second floor. In this embodiment, the traveling body 10 travels on tires 10a. The traveling body 10 can move in any direction on the partition floor 2. That is, the traveling body 10 can move in the left-right direction (the direction in which the spinning devices 3 are arranged). The traveling body 10 can move across multiple spinning devices 3 by traveling in the left-right direction. The traveling body 10 may travel autonomously or may travel along a predetermined route. The traveling body 10 may also be operated by an operator.

[0049] A thermal camera 9 is attached to the traveling body 10. The thermal camera 9 is configured to be movable up and down by a moving mechanism 9a such as an air cylinder. The traveling body 10 travels on the opposite side of the wall member 11 in the front-to-rear direction across the opening 2a of the partition floor 2. In other words, the reflector 8 attached to the cover 62 supported by the wall member 11 and the thermal camera 9 attached to the traveling body 10 are arranged across the yarn path of the yarn Y spun from the spinneret 31.

[0050] When the traveling body 10 is positioned in front of the wall member 11, the thermal camera 9 receives infrared rays emitted from the spinneret 31 and reflected by the reflector 8. Then, the thermal camera 9 measures the temperature of the spinneret 31 based on the energy intensity of the received infrared rays. The thermal camera 9 can measure the temperature distribution of the spinneret 31 by receiving infrared rays emitted from each part of the spinneret 31 via the reflector 8. In this embodiment, the thermal camera 9 can simultaneously receive infrared rays emitted from each of the multiple spinnerets 31 and reflected by the reflector 8. That is, for example, the thermal camera 9 simultaneously receives infrared rays corresponding to the infrared rays emitted from two spinnerets 31, among the infrared rays reflected by the reflector 8.

[0051] As described above, in this embodiment, the reflector 8 is disposed at a position where infrared rays emitted from all of the spinnerets 31 are incident. Therefore, as the traveling body 10 moves, the thermal camera 9 receives infrared rays emitted from all of the spinnerets 31 and reflected by the reflector 8. This allows the thermal camera 9 to measure the temperature distribution of all of the spinnerets 31. Furthermore, as the traveling body 10 moves across multiple spinning devices 3, the thermal camera 9 can measure the temperature distribution of the spinnerets 31 of multiple spinning devices 3 arranged in the left-right direction.

[0052] The image captured by the thermal camera 9 may be displayed, for example, on a display provided integrally with the thermal camera 9. Alternatively, the image may be transmitted to a control device of the spinning equipment 1 via wireless communication or the like, and displayed on a display connected to the control device. Furthermore, the image may be transmitted to a mobile terminal such as a tablet terminal.

[0053] Figure 7 shows a grayscale image taken by the thermal camera 9. In this image, the temperature distribution is expressed by shades of color. In the image shown in Figure 7, the temperature distribution of multiple spinnerets 31 appears in the area of ​​the reflector plate 8.

[0054] (Relationship between the installation position of the reflector 8 and the measured temperature) Here, the relationship between the installation position of the reflector 8 and the measured temperature of the spinneret 31 was investigated. A handy thermograph (Testo 882) manufactured by Testo was used for temperature measurement. The reflectance was set to 0.50. The temperature measurement was carried out in a state where the yarn Y was not being spun from the spinneret 31. First, when the temperature of the spinneret 31 was measured directly from directly below without using the reflector 8, it was 319°C.

[0055] Next, the cooling device 5 was positioned away from the lower end of the spinning device 3 (the position for maintenance), and a reflector 8 was installed directly below the spinning device 3. The temperature of the spinneret 31 was measured through the reflector 8 and found to be 310°C. In other words, this was about 3% lower than the temperature measured directly (319°C). At this time, the distance between the spinneret 31 and the reflector 8 was within 300 mm.

[0056] Furthermore, the cooling device 5 was positioned so as to contact the lower end of the spinning device 3 (the position during package production), and a reflector 8 was installed directly below the cooling device 5. The temperature of the spinneret 31 was measured through the reflector 8 and found to be 295°C. In other words, this was approximately 8% lower than the temperature measured directly (319°C). At this time, the distance between the spinneret 31 and the reflector 8 was approximately 800 mm.

[0057] From the above, it was confirmed that the measured temperature when using the reflector 8 decreases to a greater extent from the temperature measured when directly measured, as the distance between the spinneret 31 and the reflector 8 increases. In other words, it is possible to predict to some extent the degree of decrease in the temperature from the temperature measured when directly measured, from the distance between the spinneret 31 and the reflector 8.

[0058] (Features of the embodiment) As described above, the spinning equipment 1 of this embodiment includes the spinning device 3 having the spinneret 31 that spins the yarn Y, the reflector 8 that is disposed at a position where infrared rays emitted from the spinneret 31 are incident and that reflects the incident infrared rays, and the thermal camera 9 that can measure the temperature of the spinneret 31 by receiving the infrared rays reflected by the reflector 8. The reflector 8 and the thermal camera 9 are disposed on either side of the yarn path of the yarn Y that is spun from the spinneret 31.

[0059] According to this configuration, the reflector 8 is positioned relatively close to the yarn path so that infrared rays emitted from the spinneret 31 are incident thereon. Meanwhile, the thermal camera 9 may be positioned to receive infrared rays reflected by the reflector 8. Therefore, the thermal camera 9 can be positioned relatively far from the yarn path, on the opposite side of the yarn path from the reflector 8. This reduces the likelihood of problems such as the thermal camera 9 being damaged by high-temperature molten polymer or being unable to measure temperature due to lint contamination. Therefore, the temperature of the spinneret 31 can be easily determined without contact. By determining the temperature of the spinneret 31, it is possible to confirm whether the temperature of the spinneret 31 has risen to a temperature suitable for production, for example, when restarting yarn production after maintenance of the spinneret 31. Furthermore, if the temperature of the spinneret 31 deviates from the temperature suitable for production during yarn production, control is performed to return the temperature of the spinneret 31 to the appropriate temperature.

[0060] Furthermore, in the spinning equipment 1 of this embodiment, the thermal camera 9 can measure the temperature distribution of the spinneret 31. In this configuration, the presence or absence of temperature unevenness in the spinneret 31 can be determined by measuring the temperature distribution of the spinneret 31 with the thermal camera 9. Therefore, it is possible to reliably prevent low-quality yarn Y from being produced.

[0061] Additionally, in the spinning equipment 1 of this embodiment, the reflector 8 can reflect infrared rays emitted from each of the multiple spinnerets 31. In this configuration, the thermal camera 9 can measure the temperatures of the multiple spinnerets 31 by receiving the infrared rays reflected by the reflector 8. Therefore, the temperature variation between the spinnerets 31 can be grasped.

[0062] Furthermore, in the spinning equipment 1 of this embodiment, the thermal camera 9 can simultaneously receive infrared rays emitted from the multiple spinnerets 31 and reflected by the reflector 8. In this configuration, the thermal camera 9 can simultaneously measure the temperatures of the multiple spinnerets 31. This reduces the measurement time.

[0063] In addition, the spinning equipment 1 of this embodiment includes a movable traveling body 10, and the thermal camera 9 is provided on the traveling body 10. As the traveling body 10 moves, the thermal camera 9 can receive infrared rays emitted from each of the plurality of spinnerets 31 and reflected by the reflector 8. In this configuration, as the traveling body 10 moves, the thermal camera 9 can measure the temperatures of the plurality of spinnerets 31.

[0064] Furthermore, the spinning equipment 1 of this embodiment includes a plurality of spinning devices 3 arranged in the left-right direction, and the traveling body 10 is capable of moving across the plurality of spinning devices 3. The thermal camera 9 can measure the temperatures of the spinnerets 31 of the plurality of spinning devices 3 as the traveling body 10 moves. According to this configuration, the movement of the traveling body 10 allows the thermal camera 9 provided on the traveling body 10 to measure the temperatures of the spinnerets 31 of the plurality of spinning devices 3. Therefore, when a plurality of spinning devices 3 are arranged in one direction, it is not necessary to provide a thermal camera 9 for each spinning device 3.

[0065] Furthermore, the spinning equipment 1 of this embodiment is provided with a cooling device 5 that is disposed below the spinning device 3 and that cools the yarn Y spun from the spinneret 31. The reflector 8 is disposed below the cooling device 5. When the cooling device 5 is disposed below the spinning device 3, in order to directly measure the temperature of the spinneret 31 with the thermal camera 9, the thermal camera 9 needs to be disposed closer to the yarn path. This increases the risk of the thermal camera 9 being damaged by falling high-temperature polymer or being soiled by falling lint, making it impossible to measure the temperature. Therefore, it is more effective to apply a configuration in which a reflector 8 that is more resistant to damage and soiling than the thermal camera 9 is disposed near the yarn path, infrared rays emitted from the spinneret 31 are reflected by the reflector 8, and the reflected infrared rays are received by the thermal camera 9.

[0066] In addition, the spinning equipment 1 of this embodiment is further provided with an oil agent applicator 6 that is disposed below the spinning device 3 and has an oil supply guide 61 that applies an oil agent to the yarn Y spun from the spinneret 31. The reflector 8 is attached to the oil agent applicator 6. There is a relatively large space around the oil agent applicator 6. Therefore, with this configuration, the reflector 8 can be easily attached.

[0067] Furthermore, in the spinning equipment 1 of this embodiment, the reflector 8 is provided so as to be movable up and down, and is provided with an angle adjustment mechanism 7 that adjusts the reflection angle of infrared rays by the reflector 8. According to this configuration, even if the position of the reflector 8 in the up and down direction changes, the angle adjustment mechanism 7 adjusts the reflection angle of infrared rays by the reflector 8, so that the infrared rays emitted from the spinneret 31 can be reflected by the reflector 8 to the thermal camera 9.

[0068] Furthermore, in the spinning equipment 1 of this embodiment, the thermal camera 9 is provided so as to be movable up and down. According to this configuration, the thermal camera 9 can also be moved up and down in accordance with the up and down movement of the reflector 8. Therefore, the thermal camera 9 can receive the infrared rays reflected by the reflector 8 at an optimal position.

[0069] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configurations should not be considered to be limited to these embodiments. The scope of the present invention is defined by the claims rather than the above description of the embodiments, and further includes all modifications within the meaning and scope of the claims.

[0070] In the above embodiment, a single reflector 8 is disposed at a position where infrared rays emitted from all spinnerets 31 of a single spinning device 3 are incident, but this is not limiting. The reflector 8 may be disposed at a position where at least a portion of infrared rays emitted from at least one spinneret 31 is incident. From the viewpoint of measuring the overall temperature distribution within a single spinneret 31, the reflector 8 is preferably disposed at a position where infrared rays emitted from the entire single spinneret 31 are incident. From the viewpoint of understanding the temperature variation between multiple spinnerets 31, the reflector 8 is preferably disposed at a position where infrared rays emitted from multiple spinnerets 31 are incident. A plurality of reflectors 8 may be disposed. One reflector 8 may be provided corresponding to each of the multiple spinnerets 31.

[0071] Furthermore, in the above embodiment, a case has been described in which an image showing the temperature distribution of the spinneret 31 is captured by the thermal camera 9, but this is not limited to this. Any infrared sensor capable of measuring temperature based on the intensity of the received infrared energy may be used to measure the temperature of the spinneret 31. That is, for example, a configuration in which a numerical value of the measured temperature of the spinneret 31 is output may also be used.

[0072] Furthermore, in the above embodiment, the thermal camera 9 is described as being capable of simultaneously receiving infrared rays emitted from each of the multiple spinnerets 31 and reflected by one reflector 8, but this is not limiting. For example, the thermal camera 9 may be capable of simultaneously receiving infrared rays emitted from each of the multiple spinnerets 31 and reflected by multiple reflectors 8. In other words, the thermal camera 9 may be capable of simultaneously receiving infrared rays reflected by different reflectors 8. Furthermore, the thermal camera 9 may be capable of simultaneously receiving only infrared rays emitted from one spinneret 31 and reflected by a reflector 8.

[0073] In the above embodiment, the thermal camera 9 is described as being capable of measuring the temperatures of the spinnerets 31 of multiple spinning devices 3, but this is not limiting. The thermal camera 9 may be capable of measuring the temperature of the spinneret 31 of at least one spinning device 3.

[0074] In the above embodiment, the case has been described in which multiple spinning devices 3 are arranged in the left-right direction, and each spinning device 3 has multiple spinnerets 31, but this is not limited to this. The number of spinnerets 31 that each spinning device 3 has may be one. The number of installed spinning devices 3 may be one.

[0075] Additionally, in the above embodiment, the thermal camera 9 is attached to the traveling object 10 that travels on the partition floor 2 by means of tires 10a, but this is not limiting. The traveling object 10 to which the thermal camera 9 is attached may travel along rails attached to the partition floor 2, a side wall, a ceiling, or the like. The thermal camera 9 may also be attached to an air vehicle such as a drone. The thermal camera 9 may not be attached to such a moving object, but may be attached to a fixed member that does not move. The thermal camera 9 may also be carried by the operator.

[0076] Furthermore, in the above embodiment, the cooling device 5 is disposed below the spinning device 3, but the present invention is not limited to this. The present invention can also be applied to equipment that does not include the cooling device 5.

[0077] Furthermore, in the above embodiment, the case where the reflector 8 is attached to the cover 62 of the oil agent applicator 6 has been described, but the installation position of the reflector 8 is not limited to this. For example, the reflector 8 may be attached to a member other than the cover 62 among the members constituting the oil agent applicator 6. The reflector 8 may also be attached to a device or member other than the oil agent applicator 6. Furthermore, the cover 62 of the oil agent applicator 6 itself may be the reflector 8. In this case, the number of parts can be reduced.

[0078] In the above embodiment, the angle adjustment mechanism 7 is provided to adjust the angle at which infrared rays are reflected by the reflector 8, but the present invention is not limited to this. The angle at which infrared rays are reflected by the reflector 8 may be fixed.

[0079] Furthermore, in the above embodiment, the case where both the reflector 8 and the thermal camera 9 are provided so as to be movable up and down has been described, but this is not limited thereto. Only one of the reflector 8 and the thermal camera 9 may be movable up and down. Neither the reflector 8 nor the thermal camera 9 may be configured to move up and down. [Explanation of symbols]

[0080] 1. Spinning equipment 3 Spinning equipment 5 Cooling device 6 Oil application device 7 Angle adjustment mechanism 8 Reflector 9. Thermal camera (infrared sensor) 10. Running object (moving object) 31 Spinneret 61 Refueling Guide 62 Cover Y thread

Claims

1. a spinning device having a spinneret for spinning yarn; a reflector disposed at a position where infrared rays emitted from the spinneret are incident, and which reflects the incident infrared rays; an infrared sensor capable of measuring the temperature of the spinneret by receiving the infrared light reflected by the reflector; The spinning equipment is arranged such that the reflector and the infrared sensor are positioned on either side of a yarn path for the yarn spun out from the spinneret.

2. The spinning facility according to claim 1 , wherein the infrared sensor is capable of measuring the temperature distribution of the spinneret.

3. The spinning facility according to claim 1 or 2, wherein the reflector is capable of reflecting the infrared rays emitted from each of the plurality of spinnerets.

4. The spinning facility according to any one of claims 1 to 3, wherein the infrared sensor is capable of simultaneously receiving the infrared rays emitted from the plurality of spinnerets and reflected by one or more of the reflectors.

5. The device includes a movable body configured to be movable, the infrared sensor is provided on the moving body, The spinning equipment according to any one of claims 1 to 4, wherein the infrared sensor is capable of receiving infrared rays emitted from each of the plurality of spinnerets and reflected by one or more of the reflectors as the movable body moves.

6. a plurality of the spinning devices arranged in one direction; the movable body is movable across the plurality of spinning devices, The spinning facility according to claim 5 , wherein the infrared sensor is capable of measuring the temperatures of the spinnerets of the plurality of spinning devices by the movement of the movable body.

7. a cooling device disposed below the spinning device for cooling the yarn spun from the spinneret; The spinning facility according to any one of claims 1 to 6, wherein the reflector is disposed below the cooling device.

8. The apparatus further includes an oil application device disposed below the spinning device and having an oil supply guide for applying an oil to the yarn spun from the spinneret, The spinning facility according to any one of claims 1 to 7, wherein the reflector is attached to the oil agent application device.

9. the oil application device further includes a cover that is disposed above the oil supply guide and is configured to be movable between a position that does not cover the oil supply guide and a position that covers the oil supply guide, The spinning equipment according to claim 8, wherein the cover functions as the reflector.

10. The reflector is provided so as to be movable up and down, The spinning facility according to any one of claims 1 to 9, further comprising an angle adjustment mechanism for adjusting the angle at which the infrared ray is reflected by the reflector.

11. The spinning facility according to claim 10, wherein the infrared sensor is provided so as to be movable up and down.

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