Spinning production equipment

Abstract

To suppress deterioration of a work environment of an operator in a winding chamber due to flowing of high-temperature air from a spinning chamber into the winding chamber through the inside of a duct.SOLUTION: A spinning production facility 1 includes: a spinning device 2 and a cooling device 3 which are installed in a spinning chamber 101; a winding device 5 which is installed on a floor surface 102a of a winding chamber 102; a partition plate 40; and a duct 6. The duct 6 communicates between the spinning chamber 101 and the winding chamber 102 and extends below so as to surround a plurality of yarns Y to the lower part in the winding chamber 102. A working region W is provided on a lower side of a lower end of the duct 6. The duct 6 has a yarn introduction port 61 for introducing the plurality of yarns Y into the inside at an upper end, a yarn lead-out port 62 for leading out the plurality of yarns Y at the lower end, and an exhaust port 63 which is provided to be opened in the winding chamber 102 between the yarn introduction port 61 and the yarn lead-out port 62. A lower end of the exhaust port 63 is arranged at a position away from the floor surface 102a of the winding chamber 102 by 5 m or more.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a spinning production installation having a duct enclosing a traveling yarn. [Background technology]

[0002] A conventional spinning production facility is known that includes a spinning device that spins high-temperature molten polymer downward as a thread from a spinneret, a cooling device that supplies cooling air to the thread spun from the spinning device, and a winding device that winds the thread onto a bobbin attached to a bobbin holder below the cooling device. The spinning device and the cooling device are installed in a spinning room, and the winding device is installed on the floor of a winding room located below the spinning room.

[0003] The yarn traveling between the cooling device in the spinning chamber and the winding device in the winding chamber may be exposed to outside air and may sway. This may lead to poor threading of the yarn onto the winding device and a deterioration in the quality of the traveling yarn. Therefore, a duct is provided between the cooling device installed in the spinning chamber and the winding device installed in the winding chamber to surround the traveling yarn and suppress yarn sway.

[0004] Patent Document 1 discloses a spinning production facility in which a duct is provided below a spinning tube (cooling device) to which a pipe for supplying cooling air is connected. Such a duct communicates with a spinning chamber and a winding chamber, and the yarn spun from the spinning device is cooled by the cooling device, and then introduced into the duct from a yarn inlet at the upper end of the duct, travels through the duct, and is discharged from a yarn outlet at the lower end of the duct near the winding device. In addition to the yarn inlet and yarn outlet, the duct is provided with an exhaust port for discharging a part of the air inside the duct. In the duct of the spinning production facility, air flows in from the yarn inlet along with the traveling yarn. If the amount of air flowing in is large, the air flow inside the duct may become turbulent, causing yarn shaking. For this reason, there is a high need to provide an exhaust port for discharging a part of the air inside the duct, in addition to the yarn inlet and yarn outlet. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 50-118013 Summary of the Invention [Problem to be solved by the invention]

[0006] The spinning device is provided with a spinning beam that transports high-temperature molten polymer while maintaining its temperature and spins out multiple yarns. High-temperature air is generated in the spinning chamber due to heat radiation from the spinning beam. In addition, high-temperature air is generated by heat exchange between the cooling air supplied to the yarn from the cooling device and the high-temperature molten polymer. This high-temperature air in the spinning chamber is sent downward along with the yarn traveling inside the duct, and is discharged to the winding chamber from the yarn outlet and exhaust port.

[0007] In a spinning production facility such as that described in Patent Document 1, a work area is provided near the winding device installed on the floor of the winding room, where workers can perform various tasks such as threading the winding device. If the exhaust port of the duct is provided close to the work area, hot air will flow into the work area from the exhaust port in addition to the yarn outlet. This will increase the temperature in the work area, causing a deterioration in the working environment for the workers.

[0008] An object of the present invention is to prevent the working environment of workers in the winding chamber from deteriorating due to high-temperature air from the spinning chamber passing through the inside of a duct and flowing into the winding chamber. [Means for solving the problem]

[0009] The spinning production equipment of the present invention includes a spinning device installed in a spinning chamber and spinning a plurality of yarns downward, a winding device installed on a floor of a winding chamber located below the spinning chamber and winding the plurality of yarns spun from the spinning device onto a plurality of bobbins attached to a bobbin holder, and a member separating the spinning chamber and the winding chamber, the partition plate constituting the floor of the spinning chamber and the ceiling of the winding chamber, and a duct connecting the spinning chamber and the winding chamber and extending downward in the winding chamber to surround the plurality of yarns. A work area is provided below the lower end of the duct where an operator can perform specified tasks on the winding device, and the duct has a yarn inlet at an upper end for introducing the multiple yarns into the duct, a yarn outlet at a lower end for outletting the multiple yarns, and an exhaust outlet between the yarn inlet and the yarn outlet so as to open into the winding chamber, and the lower end of the exhaust outlet is located at a position 5 m or more away from the floor of the winding chamber.

[0010] According to the present invention, the lower end of the exhaust port is provided at a position 5 m or more away from the floor of the winding chamber. Therefore, a part of the high-temperature air inside the duct can be discharged at a position sufficiently away from the floor of the winding chamber. This makes it possible to prevent high-temperature air from passing through the inside of the duct and flowing into the working area provided at a position close to the floor of the winding chamber, and to prevent deterioration of the working environment of the workers in the winding chamber.

[0011] In the present invention, it is preferable that the distance between the lower end of the exhaust port and the partition plate is within 1 m.

[0012] According to the present invention, the distance between the lower end of the exhaust port and the partition plate constituting the ceiling of the winding chamber is within 1 m. Therefore, a part of the high-temperature air inside the duct can be discharged at a position close to the ceiling of the winding chamber. This further prevents high-temperature air from flowing into the work area through the inside of the duct, and prevents the deterioration of the working environment of the workers in the winding chamber.

[0013] In the present invention, the exhaust port isMultiple threads It is preferable that the opening faces a direction perpendicular to the arrangement direction.

[0014] The air flow generated when air is discharged from the exhaust port affects the quality of the yarn traveling inside the duct. If the exhaust port is open in a direction parallel to the arrangement direction of the multiple yarns, the effect of the air discharged from the exhaust port on the yarn will differ between the yarns on one side of the arrangement direction and the yarns on the other side. This may result in variation in quality between the multiple yarns. According to the present invention, the exhaust port is open in a direction perpendicular to the arrangement direction of the multiple yarns. Therefore, the effect of the air discharged from the exhaust port on the yarn is almost uniform between the yarns on one side of the arrangement direction and the yarns on the other side. This makes it possible to suppress variation in quality between the multiple yarns.

[0015] In the present invention, it is preferable that the exhaust port is formed to a size sufficient to encompass all of the plurality of threads along the arrangement direction when viewed from a direction perpendicular to the arrangement direction.

[0016] According to the present invention, the effect of the air discharged from the exhaust port on the yarns can be made more uniform among the yarns, compared to when the exhaust port is sized to include only a portion of the yarns along the arrangement direction when viewed from a direction perpendicular to the arrangement direction, and thus variation in the quality of the yarns can be further suppressed.

[0017] In the present invention, it is preferable that the working area is provided on one side of the duct in the axial direction of the bobbin holder, and the exhaust port opens toward the other side of the duct in the axial direction of the bobbin holder.

[0018] According to the present invention, the exhaust port can exhaust a portion of the hot air inside the duct to the opposite side of the duct from the work area where the worker performs a predetermined task. This allows a portion of the hot air to be exhausted to a position away from the work area, further preventing hot air from flowing into the work area.

[0019] In the present invention, it is preferable that the multiple yarns are open to the spinning chamber between a cooling device that is installed in the spinning chamber and below the spinning device and supplies cooling air to the multiple yarns spun from the spinning device, and the duct.

[0020] In a configuration in which multiple yarns are open to the spinning chamber between the cooling device and the duct, more hot air flows from the open portion into the inside of the duct through the yarn inlet. In this regard, in the configuration of the present invention, the exhaust port is provided at a position away from the floor surface of the winding chamber. Therefore, compared to a configuration in which the exhaust port is provided at a position closer to the floor surface of the winding chamber, the resistance at the bottom of the duct becomes larger and the static pressure inside the duct increases. This makes it possible to suppress the hot air from flowing into the inside of the duct from the yarn inlet. This makes it possible to further suppress the hot air from flowing into the working area through the inside of the duct.

[0021] In the present invention, it is preferable that the duct further includes an adjustment member capable of adjusting an opening area of ​​the exhaust port.

[0022] The larger the opening area of ​​the exhaust port, the greater the amount of high-temperature air that can be discharged from the exhaust port. On the other hand, if the opening area of ​​the exhaust port is large, the pressure inside the duct decreases as air is discharged from the exhaust port, and the amount of high-temperature air flowing into the inside of the duct from the yarn inlet increases. When the exhaust port has a predetermined opening area, the inflow amount of high-temperature air flowing into the inside of the duct from the yarn inlet and the discharge amount of high-temperature air discharged from the exhaust port are determined by the spinning speed, the type of yarn, and the like. According to the present invention, the opening area of ​​the exhaust port can be adjusted. Therefore, the opening area of ​​the exhaust port can be appropriately adjusted to a value that can most efficiently suppress the high-temperature air flowing into the working area in accordance with the size of the spinning chamber and the winding chamber, taking into consideration the balance between the high-temperature air flowing into the inside of the duct from the yarn inlet and the high-temperature air discharged from the exhaust port to the winding chamber. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a schematic side view of a spinning production facility according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing a duct according to the present embodiment. [Diagram 3] FIG. 13 is a diagram showing a duct of a comparative example. [Figure 4] 1 is a table showing measured values ​​of the amount of air flowing into the inside of the duct and the amount of air discharged from the inside of the duct to the winding chamber for the examples and the comparative examples. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] (Spinning production facility 1) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic side view of a spinning production equipment 1 according to this embodiment. Hereinafter, the front-rear and up-down directions in Fig. 1 are defined as the front-rear and up-down directions of the spinning production equipment 1. In addition, the direction perpendicular to the paper surface in Fig. 1 is defined as the left-right direction of the spinning production equipment 1, and the front side of the paper surface is the right side.

[0025] As shown in FIG. 1, the spinning production equipment 1 includes a spinning device 2, a cooling device 3, a spinning and drawing device 4, a winding device 5, a duct 6, a plurality of oil nozzles 7, a plurality of guides 8, and godet rollers 9 and 10. The spinning device 2, the cooling device 3, the oil nozzles 7, and the guides 8 are installed in a spinning chamber 101. The spinning and drawing device 4, the winding device 5, the duct 6, and the godet rollers 9 and 10 are installed in a winding chamber 102 located below the spinning chamber 101. The spinning production equipment 1 also includes a partition plate 40, which is a member that separates the spinning chamber 101 and the winding chamber 102. The partition plate 40 constitutes a part of the floor surface of the spinning chamber 101 and the ceiling 102b of the winding chamber 102. In this embodiment, the distance from the floor surface 102a to the ceiling 102b of the winding chamber 102 is about 6 to 7 m.

[0026] The spinning device 2 is a device that spins multiple threads Y downward. The spinning device 2 has a spinning beam 21 that transports a molten polymer, and a spinneret 22 that spins the molten polymer downward as threads Y. The spinnerets 22 are arranged in the left-right direction. Therefore, the multiple threads Y spun from the spinneret 22 are arranged in the left-right direction.

[0027] The cooling device 3 is disposed below the spinning device 2. The cooling device 3 is a device that supplies cooling air to the multiple yarns Y spun from the spinning device 2 to cool the yarns Y. The cooling device 3 has a cooling cylinder 31 that is substantially cylindrical and has both top and bottom ends open. Inside the cooling cylinder 31, the multiple yarns Y can run from above to below, and the cooling device 3 supplies cooling air to the multiple yarns Y running inside the cooling cylinder 31.

[0028] The multiple oil nozzles 7 are disposed below the cooling device 3, and apply oil to each of the multiple yarns Y cooled by the cooling device 3. The multiple guides 8 are disposed at equal intervals in the left-right direction below the multiple oil nozzles 7, respectively, and individually guide the multiple yarns Y to which the oil has been applied.

[0029] The duct 6 communicates between the spinning chamber 101 and the winding chamber 102, and extends downward in the winding chamber 102 so as to surround the plurality of yarns Y. The duct 6 will be described in detail later.

[0030] In this embodiment, the front side of the plurality of yarns Y is between the cooling device 3 and the duct 6. teeth The spinning chamber 101 is open to the cooling device 3 and the duct 6. ToA plate-like member 41 having a plurality of holes is disposed between the cooling device 3 and the duct 6. Therefore, the rear side of the plurality of yarns Y between the cooling device 3 and the duct 6 is partially opened to the spinning chamber 101 through the plurality of holes formed in the plate-like member 41. Furthermore, although not shown, side walls are formed on the left and right sides of the plurality of yarns Y running between the cooling device 3 and the duct 6. Therefore, the right and left sides of the plurality of yarns Y between the cooling device 3 and the duct 6 are not opened to the spinning chamber 101.

[0031] In addition, between the cooling device 3 and the duct 6, a plurality of oil nozzles 7 and a plurality of guides 8 are provided on the front side of the guides 8. teeth , like the multiple yarns Y, are open to the spinning chamber 101. In addition, between the cooling device 3 and the duct 6, multiple oil agent nozzles 7 and multiple guides 8 are provided on the rear side of the spinning chamber 101. teeth , and are partially open to the spinning chamber 101 through a plurality of holes formed in the plate-like member 41. Furthermore, between the cooling device 3 and the duct 6, the right and left sides of the plurality of oil agent nozzles 7 and the plurality of guides 8 are not open to the spinning chamber 101.

[0032] The spinning and drawing device 4 is disposed below the duct 6. The spinning and drawing device 4 is a device that heats and draws a plurality of yarns Y by a plurality of godet rollers (not shown) housed inside a thermal insulation box (not shown).

[0033] The multiple yarns Y drawn by the spinning and drawing device 4 are sent to the winding device 5 via godet rollers 9 and 10. The winding device 5 is a device for winding the multiple yarns Y, and is installed on a floor surface 102a of a winding chamber 102.

[0034] The winding device 5 winds a plurality of yarns Y onto a plurality of bobbins B held by a bobbin holder 11 to form a plurality of packages P. The winding device 5 is provided with two bobbin holders 11. The bobbin holder 11 is a shaft member extending in the front-rear direction, and its rear end is cantilevered by a turret 13 provided on a machine base 12. The bobbin holder 11 can hold a plurality of bobbins B lined up in the axial direction. For example, when eight yarns Y are sent from the spinning device 2, the eight yarns Y are wound onto eight bobbins B.

[0035] The winding device 5 also has a plurality of support guides 14, a plurality of traverse devices 15, and a contact roller 16. The plurality of support guides 14 and the plurality of traverse devices 15 are arranged side by side in the front-rear direction corresponding to the plurality of bobbins B held in the bobbin holder 11. Each traverse device 15 traverses the yarn Y in the front-rear direction around the corresponding support guide 14. The contact roller 16 comes into contact with the surfaces of the plurality of packages P to apply a predetermined contact pressure and shape the packages P.

[0036] 1, a work area W is provided below the lower end of the duct 6, where the worker A performs a predetermined operation on the spinning and drawing device 4 and the winding device 5. The work area W is an area where the worker A performs a predetermined operation while standing on a work platform 51 installed on the floor surface 102a of the winding chamber 102. The predetermined operation includes, for example, threading the yarn onto a plurality of godet rollers (not shown) of the spinning and drawing device 4 and a fiber separating guide (not shown).

[0037] The working area W is provided in front of the duct 6 (corresponding to "one side of the duct" of the present invention) in the axial direction of the bobbin holder 11, i.e., in the front-rear direction. In this embodiment, the winding device 5 is located behind the duct 6. Therefore, the working area W is provided at a position opposite the winding device 5 across the duct 6.

[0038] (Duct 6) The configuration of the duct 6 will be described in detail below. As shown in Figures 1 and 2, the duct 6 is a member having a substantially rectangular parallelepiped shape extending in the up-down direction. The cross section perpendicular to the extension direction of the duct 6 is rectangular, with the long sides extending in the left-right direction and the short sides extending in the front-rear direction. The upper part of the duct 6 is fixed by a partition plate 40. As shown in Figures 1 and 2, the duct 6 has a yarn inlet 61, a yarn outlet 62, and an exhaust outlet 63.

[0039] The yarn inlet 61 is a portion at the upper end of the duct 6 for introducing multiple yarns Y into the duct 6. The yarn inlet 61 of the duct 6 is connected to the partition plate 40. The multiple yarns Y traveling below the cooling device 3 in the spinning chamber 101 are introduced into the duct 6 through the yarn inlet 61.

[0040] The yarn outlet 62 is a portion at the lower end of the duct 6 for leading out the multiple yarns Y from inside the duct 6 to the winding chamber 102. The yarn outlet 62 is located above the spinning and drawing unit 4. The multiple yarns Y traveling inside the duct 6 are led out to the outside of the duct 6 through the yarn outlet 62. The distance between the floor surface 102a of the winding chamber 102 and the yarn outlet 62 is approximately 3 m.

[0041] As shown in FIG. 1, the exhaust port 63 is provided between the yarn inlet 61 and the yarn outlet 62 so as to open into the winding chamber 102. The lower end of the exhaust port 63 is disposed at a position 5 m or more away from the floor surface 102a of the winding chamber 102. The distance between the lower end of the exhaust port 63 and the partition plate 40 is 1 m or less. In this embodiment, the distance between the lower end of the exhaust port 63 and the partition plate 40 is 550 mm. The exhaust port 63 opens in a direction perpendicular to the arrangement direction of the multiple yarns Y traveling inside the duct 6, that is, in the front-rear direction. The exhaust port 63 opens toward the rear side of the duct 6 (corresponding to the "other side of the duct" of the present invention) in the axial direction of the bobbin holder 11, that is, in the front-rear direction.

[0042] Furthermore, when viewed from a direction perpendicular to the arrangement direction of the multiple yarns Y, i.e., the front-rear direction, the exhaust port 63 is formed to a size sufficient to encompass all of the multiple yarns Y along the left-right direction. Specific dimensions of the exhaust port 63 in this embodiment are 250 mm in the up-down direction and 1320 mm in the left-right direction.

[0043] As shown in Fig. 2, the exhaust port 63 has a plurality of small holes 63a. Each small hole 63a has a diameter of 55 mm. As shown in Fig. 2, the small holes 63a are arranged in four rows in the vertical direction, with 22 small holes 63a arranged in the horizontal direction, for a total of 88 small holes 63a. Air inside the duct 6 is discharged from each small hole 63a to the winding chamber 102. In this embodiment, the size of the exhaust port 63 including all the small holes 63a is large enough to include all of the multiple yarns Y in the horizontal direction when viewed from the front-rear direction.

[0044] As shown in FIG. 2, the duct 6 further has an adjustment member 64 capable of adjusting the opening area of ​​the exhaust port 63. The adjustment member 64 is an inner portion of the duct 6 and is disposed above the exhaust port 63. The adjustment member 64 is a sliding shutter and is capable of moving in the vertical direction. The dimensions of the adjustment member 64 in the vertical and horizontal directions are slightly larger than those of the exhaust port 63. The adjustment member 64 moves downward from the state shown in FIG. 2 to cover a portion of the exhaust port 63. This allows the adjustment member 64 to adjust the opening area of ​​the exhaust port 63.

[0045] In this embodiment, no exhaust port is formed at the bottom of the duct 6. More specifically, the duct 6 does not have any part that opens to the winding chamber 102 other than the yarn outlet 62 and the exhaust port 63. That is, the high-temperature air inside the duct 6 is not discharged to the winding chamber 102 from any part other than the yarn outlet 62 and the exhaust port 63. Therefore, it is possible to prevent the high-temperature air in the spinning chamber 101 from flowing into the working area W of the winding chamber 102 through the duct 6. In addition, in this embodiment, the exhaust port 63 is configured not to suck the air inside the duct 6 to the outside in order to exhaust the air inside the duct 6. That is, the exhaust port 63 is configured to simply be open to the winding chamber 102. Since the air inside the duct 6 is not sucked to the outside through the exhaust port 63, it is possible to prevent the inside of the duct 6 from becoming negative pressure. This makes it possible to prevent the high-temperature air in the spinning chamber 101 from flowing into the inside of the duct 6 from the yarn inlet 61.

[0046] (Example) Next, in the spinning production equipment 1 of the example and the comparative example, the amount of air flowing into the inside of the duct (m 3 / min) and the amount of air discharged from the inside of the duct to the winding chamber 102 (m 3 The amount of air flowing into the duct was compared from the portion between the cooling device 3 and the duct where the front side of the multiple yarns Y is open to the spinning chamber 101 to the yarn inlet port. of The amount of air flowing into the inside of the duct through the yarn outlet was measured. from Measurements were performed on the amount of air discharged into the winding chamber 102 and the amount of air discharged from the exhaust port into the winding chamber 102. The measurement results are shown in FIG.

[0047] The spinning production equipment 1 of the example has the same configuration as that of the above-mentioned embodiment. In the example, the adjustment member 64 does not cover the exhaust port 63 (as shown in FIG. 2).

[0048] The spinning production equipment 1 of the comparative example has the same configuration as that of the embodiment except for the duct. As shown in FIG. 3, the duct 106 of the comparative example has a yarn inlet 161, a yarn outlet 162, and an exhaust outlet 163. The yarn inlet 161 and the yarn outlet 162 have the same configuration as the yarn inlet 61 and the yarn outlet 62 of the duct 6 of the embodiment. That is, the yarn inlet 161 is connected to the partition plate 40, and the distance between the yarn outlet 162 and the floor surface 102a is 3.5 m. The exhaust outlet 163 is formed at the bottom of the duct 106. The exhaust outlet 163 opens toward the rear side of the duct 106. The dimensions of the exhaust outlet 163 in the vertical and horizontal directions are the same as those of the exhaust outlet 63 of the duct 6. The exhaust outlet 163 has 88 small holes 163a with a diameter of 55 mm, similar to the exhaust outlet 63.

[0049] As shown in FIG. 4, in the comparative example, the amount of air flowing into the inside of the duct 106 was 15.9 (m 3 / min), whereas in the embodiment, the amount of air flowing into the inside of the duct 6 was 8.3 (m 3 / min). That is, in the example, the inflow of high-temperature air from the spinning chamber 101 into the inside of the duct 6 is suppressed compared to the comparative example. This is because, in the example, the exhaust port 63 is provided at a position away from the floor surface 102a of the winding chamber 102, and the inflow of high-temperature air from the duct 6 into the spinning chamber 101 is suppressed. 6 This is believed to be because the static pressure inside the duct 6 increased, and the inflow of air into the duct 6 from the portions where the multiple yarns Y were open was restricted.

[0050] In addition, as shown in FIG. 4, in the embodiment and the comparative example, the yarn outlet 62 (162) There was almost no difference in the amount of air discharged from the exhaust port 63 to the winding chamber 102. On the other hand, the amount of air discharged from the exhaust port 63 to the winding chamber 102 in the example was lower than the amount of air discharged from the exhaust port 163 to the winding chamber 102 in the comparative example. Specifically, in the example, the amount of air discharged from the exhaust port 63 to the winding chamber 102 was 6.2 (m 3 / min), and in the comparative example, the amount of air discharged from the exhaust port 163 to the winding chamber 102 was 13.1 (m 3 This is because, as described above, in the embodiment, the yarn inlet 61 is connected to the duct 6This is believed to be because the amount of air discharged from the exhaust port 63 also decreased as the amount of air flowing into the interior of the device was suppressed.

[0051] Furthermore, in the comparative example, since the exhaust port 163 is provided in the lower part of the duct 106, the air discharged from the exhaust port 163 to the winding chamber 102 flows into the working area W. In contrast, in the example, since the exhaust port 63 is disposed at a position away from the floor surface 102a, the air discharged from the exhaust port 63 to the winding chamber 102 is less likely to flow into the working area W. Therefore, in the example, it is possible to suppress the high-temperature air in the spinning chamber 101 from flowing into the working area W, as compared to the comparative example.

[0052] (effect) The spinning production equipment 1 of this embodiment includes a spinning device 2 and a cooling device 3 installed in the spinning chamber 101, a winding device 5 installed on the floor surface 102a of the winding chamber 102, a partition plate 40, and a duct 6. The duct 6 communicates the spinning chamber 101 and the winding chamber 102, and extends downward in the winding chamber 102 so as to surround the multiple yarns Y. A working area W is provided below the lower end of the duct 6. The duct 6 has a yarn inlet 61 at an upper end for introducing the multiple yarns Y into the interior, a yarn outlet 62 at a lower end for outletting the multiple yarns Y, and an exhaust port 63 provided between the yarn inlet 61 and the yarn outlet 62 so as to open into the winding chamber 102. The lower end of the exhaust port 63 is located at a position 5 m or more away from the floor surface 102a of the winding chamber 102.

[0053] According to this embodiment, the lower end of the exhaust port 63 is provided at a position 5 m or more away from the floor surface 102a of the winding chamber 102. Therefore, a part of the high-temperature air inside the duct 6 can be discharged at a position sufficiently away from the floor surface 102a of the winding chamber 102. This makes it possible to prevent high-temperature air from passing through the inside of the duct 6 and flowing into the working area W provided at a position close to the floor surface 102a of the winding chamber 102, and to prevent the working environment of the worker A in the winding chamber 102 from deteriorating.

[0054] In this embodiment, the distance between the lower end of the exhaust port 63 and the partition plate 40 constituting the ceiling 102b of the winding chamber 102 is set to 1 m or less. Therefore, a part of the high-temperature air inside the duct 6 can be discharged at a position close to the ceiling 102b of the winding chamber 102. This can further prevent the high-temperature air from flowing into the work area W through the inside of the duct 6, and can prevent the work environment of the worker A in the winding chamber 102 from deteriorating.

[0055] In addition, in this embodiment, the exhaust port 63 opens in a direction (front-rear direction) perpendicular to the arrangement direction (left-right direction) of the multiple yarns Y. The air flow generated when air is discharged from the exhaust port 63 affects the quality of the yarn Y traveling inside the duct 6. If the exhaust port 63 opens in a direction parallel to the arrangement direction of the multiple yarns Y, the influence of the air discharged from the exhaust port 63 on the yarn Y will be different between the yarn Y on one side (right side) of the arrangement direction and the yarn Y on the other side (left side). This may cause variations in quality between the multiple yarns Y. According to this embodiment, the exhaust port 63 opens in a direction perpendicular to the arrangement direction of the multiple yarns Y. Therefore, the influence of the air discharged from the exhaust port 63 on the yarn Y is almost uniform between the yarn Y on one side (right side) of the arrangement direction and the yarn Y on the other side (left side). This makes it possible to suppress variations in quality between the multiple yarns Y.

[0056] Furthermore, in this embodiment, when viewed from a direction (front-back direction) perpendicular to the arrangement direction (left-right direction) of the multiple yarns Y, the exhaust port 63 is formed to be large enough to include all of the multiple yarns Y along the arrangement direction (left-right direction). According to this embodiment, the effect of the air discharged from the exhaust port 63 on the multiple yarns Y can be made more uniform among the multiple yarns Y, compared to when the exhaust port 63 is formed to be large enough to include only a portion of the multiple yarns Y along the left-right direction when viewed from the front-back direction. This can further suppress variation in the quality of the multiple yarns Y.

[0057] Furthermore, in this embodiment, the work area W is provided in front of the duct 6 in the axial direction (front-rear direction) of the bobbin holder 11, and the exhaust port 63 opens toward the rear side of the duct 6 in the axial direction (front-rear direction) of the bobbin holder 11. According to this embodiment, the exhaust port 63 can exhaust a part of the high-temperature air inside the duct 6 to the opposite side of the work area W where the worker A performs a predetermined work, across the duct 6. Therefore, a part of the high-temperature air can be exhausted to a position away from the work area W, and the inflow of high-temperature air into the work area W can be further suppressed.

[0058] In this embodiment, the plurality of yarns Y are open to the spinning chamber 101 between the cooling device 3 and the duct 6. In a configuration in which the plurality of yarns Y are open to the spinning chamber 101 between the cooling device 3 and the duct 6, a larger amount of high-temperature air flows into the inside of the duct 6 from the open portion. In this respect, in the configuration of this embodiment, the exhaust port 63 is provided at a position away from the floor surface 102a of the winding chamber 102, so that the air in the duct 6 The static pressure inside the duct 6 increases, and it is possible to prevent high-temperature air from flowing into the inside of the duct 6 from the portion where the multiple yarns Y are released. This makes it possible to further prevent high-temperature air from flowing into the working area W through the inside of the duct 6.

[0059] In this embodiment, the duct 6 further includes an adjustment member 64 capable of adjusting the opening area of ​​the exhaust port 63. The larger the opening area of ​​the exhaust port 63, the larger the amount of high-temperature air that can be discharged from the exhaust port 63. On the other hand, if the opening area of ​​the exhaust port 63 is large, the pressure inside the duct 6 decreases as air is discharged from the exhaust port 63, and the amount of high-temperature air flowing into the inside of the duct 6 from the yarn inlet 61 also increases. When the exhaust port 63 has a predetermined opening area, the inflow amount of high-temperature air flowing into the inside of the duct 6 from the yarn inlet 61 and the discharge amount of high-temperature air discharged from the exhaust port 63 are determined by the sizes of the spinning chamber 101 and the winding chamber 102, etc. According to this embodiment, the opening area of ​​the exhaust port 63 can be adjusted. For this reason, the opening area of ​​the exhaust port 63 can be appropriately adjusted to a value that can most efficiently suppress the high-temperature air flowing into the working area W in consideration of the balance between the high-temperature air flowing into the duct 6 from the yarn inlet 61 and the high-temperature air discharged from the exhaust port 63 to the winding chamber 102, and depending on the sizes of the spinning chamber 101 and the winding chamber 102, etc.

[0060] Below, Modifications of the above embodiment will be described below, with the same reference numerals being used to designate components similar to those of the above embodiment, and descriptions thereof will be omitted where appropriate.

[0061] The spinning production equipment 1 of the above embodiment is configured such that the arrangement direction of the spinneret 22 and the axial direction of the bobbin holder 11 are perpendicular to each other. The exhaust port 63 opens in a direction perpendicular to the arrangement direction of the multiple yarns Y, and at the same time, opens in the axial direction of the bobbin holder 11. However, the spinning production equipment 1 may be configured such that the arrangement direction of the spinneret 22 and the axial direction of the bobbin holder 11 are parallel to each other. In this case, the exhaust port 63 may open in a direction perpendicular to the arrangement direction of the multiple yarns Y, and at the same time, opens in a direction perpendicular to the axial direction of the bobbin holder 11. Alternatively, the exhaust port 63 may open in a direction parallel to the arrangement direction of the multiple yarns Y, and at the same time, opens in the axial direction of the bobbin holder 11.

[0062] In the above embodiment, the exhaust port 63 opens into the winding chamber 102 toward the rear in the direction perpendicular to the arrangement direction of the multiple yarns Y. That is, the exhaust port 63 opens on the rear side surface of the duct 6. However, the exhaust port 63 may be open on any one of the side surfaces of the duct 6, or on two or more surfaces.

[0063] In the above embodiment, the distance between the lower end of the exhaust port 63 and the partition plate 40 is 1 m or less. However, the distance between the lower end of the exhaust port 63 and the partition plate 40 may be greater than 1 m. In this case, the lower end of the exhaust port 63 is disposed at a position 5 m or more away from the floor surface 102a of the winding chamber 102.

[0064] In the above embodiment, the exhaust port 63 does not have to have a plurality of small holes 63a. In this case, for example, the exhaust port 63 is a single opening. In the above embodiment, a separate opening of a size large enough not to prevent the exhaust of air from the exhaust port 63 may be provided at any position of the duct 6.

[0065] In the above embodiment, the yarn inlet 61 of the duct 6 is connected to the partition plate 40. However, the yarn inlet 61 may be located above the partition plate 40.

[0066] In the above embodiment, the cross section perpendicular to the extending direction of the duct 6 may be circular or elliptical. The duct 6 may be bent midway.

[0067] In the above embodiment, the multiple yarns Y are open to the spinning chamber 101 between the cooling device 3 and the duct 6. However, the multiple yarns Y do not have to be open to the spinning chamber 101 between the cooling device 3 and the duct 6. In this case, for example, the lower end of the cooling device 3 and the upper end of the duct 6 may be directly connected to each other.

[0068] Furthermore, between the cooling device 3 and the duct 6, the right and left sides of the multiple yarns Y may be open to the spinning chamber 101. However, if the right and left sides of the multiple yarns Y are open to the spinning chamber 101, there is a risk that the air flowing in from the spinning chamber 101 through the open parts will not have a uniform effect on the multiple yarns Y. For this reason, it is preferable that the right and left sides in the left-right direction, which is a direction parallel to the yarn arrangement direction, are closed, and the front or rear side or both sides in the front-rear direction, which is a direction perpendicular to the yarn arrangement direction, are open to the spinning chamber 101.

[0069] In the above embodiment, the adjustment member 64 is a sliding shutter that is movable in the up and down direction. However, the adjustment member 64 may be a sliding shutter that is movable in the left and right direction. In addition, the adjustment member 64 is not limited to a sliding shutter, and may be, for example, a member that is detachable from the exhaust port 63. In the above embodiment, the adjustment member 64 does not have to be provided.

[0070] In the above embodiment, the working area W is provided in front of the duct 6. However, the working area W may be any of the right side, left side, rear side, diagonally right front side, diagonally left front side, diagonally right rear side, or diagonally left rear side of the duct 6. The working area W may be provided over a plurality of areas including the front side, rear side, right side, left side, diagonally right front side, diagonally left front side, diagonally right rear side, or diagonally left rear side of the duct 6. Furthermore, in the above embodiment, the work table 51 may not be provided. In this case, the working area W is defined as an area for the worker A on the floor surface 102a to perform a predetermined work. In this case, the predetermined work may include a work of threading a plurality of yarns Y on the godet rollers 9, 10 and the support guide 14 of the winding device 5, a replacement of the bobbin B for the bobbin holder 11 of the winding device 5, and the like. To sum up, the work area W is not limited to the top of the workbench 51, but may be the floor surface 102a around the duct 6 with the duct 6 at the center when viewed from above or the peripheral area of ​​the workbench 51. [Explanation of symbols]

[0071] 1. Spinning production equipment 2. Spinning equipment 3 Cooling device 5 Winding device 6 Duct 11 Bobbin holder 40 Partition 61 Thread inlet 62 Thread outlet 63 Exhaust port 64 Adjustment member 101 Spinning Room 102 Winding room 102a Floor 102b Ceiling A Worker B Bobbin P Package W work area Y Thread

Claims

1. A spinning device installed in the spinning chamber and spinning a plurality of yarns downward; a winding device that is installed on a floor surface of a winding chamber located below the spinning chamber and winds the plurality of yarns spun from the spinning device onto a plurality of bobbins attached to a bobbin holder; a partition plate which separates the spinning chamber from the winding chamber and constitutes a floor surface of the spinning chamber and a ceiling of the winding chamber; a duct communicating the spinning chamber with the winding chamber and extending downward in the winding chamber so as to surround the plurality of yarns; Equipped with a work area for an operator to perform a predetermined operation on the winding device is provided below the lower end of the duct, The duct is a yarn inlet at an upper end portion for introducing the plurality of yarns thereinto, a yarn outlet at a lower end portion for outletting the plurality of yarns, and an exhaust port provided between the yarn inlet and the yarn outlet port so as to open into the winding chamber, A spinning production facility, characterized in that a lower end of the exhaust port is located at a position 5 m or more away from the floor surface of the winding chamber.

2. 2. The spinning production facility according to claim 1, wherein the distance between the lower end of the exhaust port and the partition plate is within 1 m.

3. 3. The spinning production facility according to claim 1, wherein the exhaust port is open in a direction perpendicular to the arrangement direction of the plurality of yarns.

4. 4. The spinning production facility according to claim 3, wherein the exhaust port is formed to a size sufficient to encompass all of the plurality of yarns along the arrangement direction when viewed from a direction perpendicular to the arrangement direction.

5. the working area is provided on one side of the duct in an axial direction of the bobbin holder, 5. The spinning production facility according to claim 1, wherein the exhaust port opens toward the other side of the duct in the axial direction of the bobbin holder.

6. The spinning production facility according to any one of claims 1 to 5, characterized in that the plurality of yarns are open to the spinning chamber between a cooling device installed in the spinning chamber and below the spinning device, the cooling device supplying cooling air to the plurality of yarns spun from the spinning device, and the duct.

7. 7. The spinning production facility according to claim 1, wherein the duct further comprises an adjustment member capable of adjusting an opening area of ​​the exhaust port.

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