Fiber chip recovery device and false twisting machine

Abstract

To provide a fiber chip recovery device which suitably separates fiber chips and air, and can prevent fiber chips from being discharged to outside.SOLUTION: A fiber chip recovery device 1 includes a fiber chip transfer pipe 11, a fiber chip recovery part 13, a fiber chip separation part 30 which is provided between the fiber chip transfer pipe 11 and the fiber chip recovery part 13, and a conductive part 34. The fiber chip separation part 30 includes a separation part 31 which is connected to the fiber chip transfer pipe 11 and separates the fiber chips from air, an air discharge part 32 for discharging air separated from the fiber chips, and a fiber chip discharge part 33 which discharges the fiber chips separated from air and recovers the fiber chips in the fiber chip recovery part 13. The conductive part 34 electrically connects the separation part 31 to the external conductor. The separation part 31 has a body part 35 which is composed of a resin material having conductivity and has a cylindrical shape, and a fiber chip transfer part 36 which is provided below the body part 35 and has an inclination part 39 whose diameter is reduced to the fiber chip discharge part 33.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention , sky A fiber waste recovery device that recovers fiber waste separated from the air and a false twisting machine equipped with the fiber waste recovery device Regarding. [Background technology]

[0002] In a textile machine such as a false twisting machine or a spinning device, fibers are continuously supplied when the fibers are threaded on the textile machine or when a package formed by winding the fibers on a winding device provided in the textile machine is replaced. For this reason, in the textile machine, it has been conventional to suck and collect fiber waste during threading or package replacement.

[0003] For example, Patent Document 1 discloses a suction device for continuously running multiple yarns, which includes a suction pipe provided with multiple suction ports, a fiber waste collection container connected to the end of the suction pipe, and a negative pressure pump or suction blower connected to the fiber waste collection container. In the suction device disclosed in Patent Document 1, negative pressure is created inside the suction pipe by the operation of the negative pressure pump or suction blower, and fiber waste sucked into the suction pipe from the multiple suction ports is sucked through the suction pipe and collected in the fiber waste collection container. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 6-40661 Summary of the Invention [Problem to be solved by the invention]

[0005] In the suction device disclosed in Patent Document 1, the fiber waste is sucked into the suction pipe and collected by the operation of a negative pressure pump or a suction blower connected via a fiber waste collection container at the downstream end side in the suction direction of the suction pipe. With such a suction device, there is a risk that the fiber waste will be discharged to the outside together with the air.

[0006] The present invention has been made in consideration of the above problems, and provides a method for separating fiber waste from air in an appropriate manner and preventing the fiber waste from being discharged to the outside. Fiber Fiber waste collection device , and false twisting machine The purpose is to provide. [Means for solving the problem]

[0007] ( 1 The fiber waste recovery device of the present invention is A fiber waste transport pipe for transporting the fiber waste together with air; a fiber waste collection section that collects the fiber waste transported through the fiber waste transport pipe; a fiber waste separator provided between the fiber waste transfer pipe and the fiber waste collection section, which separates the fiber waste transferred through the fiber waste transfer pipe from air and collects the separated fiber waste in the fiber waste collection section; Equipped with The fiber waste separator comprises: A separation section connected to the fiber waste transfer pipe and configured to separate the fiber waste from air; an air discharge section connected to the separation section and configured to discharge air from which the fiber waste has been separated; a fiber waste discharge section that discharges the fiber waste separated from the air in the separation section and collects the fiber waste in the fiber waste recovery section; Including, a conductive portion for electrically connecting the separating portion to an external conductor; The separation unit is A cylindrical main body to which the fiber waste transport pipe is connected; a fiber waste transfer section provided below the main body section and connected to the fiber waste discharge section, The fiber waste transfer portion is configured to have an inclined portion whose diameter decreases from a connection portion with the main body portion toward the fiber waste discharge portion, The separation portion is made of a conductive resin material.

[0008] the above( 1 According to the fiber waste recovery device described in (), the fiber waste transferred inside the fiber waste transfer pipe passes through a fiber waste separator connected to the fiber waste transfer pipe and is collected in the fiber waste recovery section. In the fiber waste separator, the fiber waste transferred from the fiber waste transfer pipe to the main body of the separation section moves downward to the fiber waste transfer section inside the cylindrical main body by the air flow along the inner circumference of the main body. The fiber waste that has moved downward is then gathered into a ball in the fiber waste transfer section having an inclined section, discharged from the fiber waste discharge section, and collected in the fiber waste recovery section. Furthermore, the air from which the fiber waste has been separated is discharged from the air discharge section. Thus, the above ( 1 According to the fiber waste recovery device described in the above, the fiber waste and the air are suitably separated, and the fiber waste can be prevented from being discharged to the outside from the air discharge section.

[0009] When a separating section having a complex shape, which has a cylindrical main body and an inclined section whose diameter decreases from the connection with the cylindrical main body toward the fiber waste discharge section, is formed from a metal material, it is necessary to form the separating section by welding a plurality of components. This results in burrs being generated at the welded section, which causes the fiber waste to get caught in the burrs, reducing the efficiency of fiber waste collection in the fiber waste collection section. However, according to the fiber waste collection device described in (1) above, the separating section is formed from a resin material, so no burrs are generated by welding, and even a complex shape in which a cylindrical main body and an inclined section are connected can be easily formed by injection molding of resin. Furthermore, the above ( 1 ) DescribedAccording to the fiber waste collection device, the separation section is made of a resin material having electrical conductivity, and further includes a conductive section that electrically connects the separation section to an external conductor. Therefore, static electricity generated by friction between the fiber waste separated from the air in the separation section and the separation section flows from the separation section to the conductive section and is released, preventing the separation section from becoming charged. This makes it possible to prevent the fiber waste from adhering to the separation section due to static electricity, and to prevent a decrease in the efficiency of fiber waste collection in the fiber waste collection section.

[0010] ( 2 In the fiber waste recovery device of the present invention, it is preferable that the conductive portion be a flange-shaped conductive portion configured as a flange portion along an outer periphery of the main body.

[0011] the above( 2 According to the fiber waste recovery device described in the above, a flange-shaped conductive portion configured as a flange portion along the outer periphery of the main body portion is provided as a conductive portion, so that static electricity generated in the separation portion can be efficiently discharged to the outside around the entire circumference of the separation portion.

[0012] ( 3 ) In the fiber waste recovery device of the present invention, it is preferable that the conductive portion is a tubular conductive portion configured as a tubular connecting member that connects and connects the main body portion and the fiber waste transport piping, and that the tubular conductive portion is configured from a conductive rubber material.

[0013] the above( 3 According to the fiber waste recovery device described in the above, the static electricity generated in the separation section can be efficiently discharged from the main body section to the fiber waste transfer pipe and released. In addition, the conductive section provided as a connecting member connecting the main body section and the fiber waste transfer pipe is made of a conductive rubber material, so that the positional deviation between the main body section and the fiber waste transfer pipe can be absorbed and the main body section and the fiber waste transfer pipe can be easily connected.

[0014] ( 4In the fiber waste recovery apparatus of the present invention, it is preferable that the air discharge section is provided so that a lower end of the air discharge section is located above the fiber waste transport pipe.

[0015] the above( 4 According to the fiber waste collection device described in the above, it is possible to prevent fiber waste from becoming tangled in the air discharge section, which would hinder good separation of the fiber waste from the air, and therefore it is possible to separate the fiber waste from the air well.

[0016] ( 5 In the fiber waste recovery device of the present invention, it is preferable that a plurality of the fiber waste transport pipes are provided, and the fiber waste separator is provided for each of the plurality of the fiber waste transport pipes.

[0017] the above( 5 The fiber waste recovery device described in is provided with one fiber waste separator for each of a plurality of fiber waste transfer pipes. That is, since the fiber waste transfer pipes and the fiber waste separators are connected one-to-one, the fiber waste transfer pipes and the fiber waste separators can be connected without being restricted by other fiber waste transfer pipes. Therefore, the fiber waste transfer pipes and the fiber waste separator can be connected at an appropriate position where the fiber waste and the air are well separated. Note that the "appropriate position" is, for example, a position where the fiber waste transfer pipes are lower than the lower end of the air discharge section.

[0018] ( 6 In the fiber waste recovery device of the present invention, it is preferable that a plurality of the fiber waste transport pipes are provided, and that the number of the fiber waste recovery units is smaller than the number of the fiber waste transport pipes.

[0019] the above( 6According to the fiber waste recovery device described in the above, the number of fiber waste recovery sections is smaller than the number of fiber waste transfer pipes, so that the fiber waste recovery device can be made compact overall. That is, by providing a fiber waste separator, the fiber waste can be discharged in a ball-like shape, so that the volume occupied by the fiber waste inside the fiber waste recovery section can be reduced. In addition, by separating the fiber waste from the air and discharging the air after the fiber waste is separated from the air discharge section, the volume occupied by the air can be reduced compared to a conventional fiber waste recovery device in which a blower is connected to the fiber waste transfer pipe, etc., in which the air cannot be separated. As a result, in the fiber waste recovery device of the present invention, it is possible to store a larger amount of fiber waste in the fiber waste recovery section than in the conventional fiber waste recovery device, so that the number of fiber waste recovery sections can be reduced. In addition, if the number of fiber waste recovery sections is reduced, the burden on the operator can be reduced, such as by reducing the frequency of replacement.

[0020] The fiber waste recovery device according to the present invention is 1 )~( 6 It is not essential to have all of the configurations described in ( ). For example, 1 In the invention relating to the fiber waste recovery device described in 2 )~( 6 All of the configurations described in () are not essential. In addition, to the extent that consistency can be achieved, 1 ) and the above ( 2 )~( 6 ) may be arbitrarily combined with the above to form the fiber waste recovery device according to the present invention.

[0021] (7) A false twisting machine of the present invention includes the fiber waste recovery device according to any one of (1) to (6) above.

[0022] According to the false twisting machine described in (7) above, the fiber waste and the air are suitably separated, and the fiber waste can be prevented from being discharged to the outside. Effect of the Invention

[0023] According to the present invention, it is possible to preferably separate fiber waste from air and suppress the fiber waste from being discharged to the outside. Fiber Fiber waste collection device , and false twisting machine can be provided. [Brief description of the drawings]

[0024] [Figure 1] 1 is a schematic diagram showing an example of a false twisting machine as a textile machine in which a fiber waste recovery device is installed. [Diagram 2] 1 is a schematic diagram showing an example of a fiber waste recovery apparatus according to an embodiment of the present invention, and an example of a fiber waste separator according to an embodiment of the present invention that is provided in the fiber waste recovery apparatus. [Diagram 3] 4 is a cross-sectional view showing an example of a suction section provided in a fiber waste transfer pipe of a fiber waste recovery device. FIG. [Figure 4] 1 is an example of a perspective view showing a plurality of fiber debris separators and a fiber debris collection container in a fiber debris collection device; [Diagram 5] FIG. 2 is a perspective view showing an example of a fiber waste separator. [Figure 6] FIG. 2 is a plan view showing an example of a fiber waste separator. [Figure 7] FIG. 2 is a front view of a fibrous waste separator according to an embodiment of the present invention; [Figure 8] FIG. 2 is a front view of a fibrous waste separator according to an embodiment of the present invention; [Figure 9] 13 is an example of an experimental result showing the relationship between the taper angle, the air flow rate in the air discharge section, and the air flow rate in the fiber waste discharge section. [Figure 10] FIG. 2 is a schematic diagram showing a fiber waste collection apparatus according to a first modified example and a fiber waste separator according to the first modified example that is provided in the fiber waste collection apparatus. [Figure 11] 10 is a perspective view showing a fiber debris separator and a fiber debris collection container of a fiber debris collection apparatus according to a first modified example. FIG. [Figure 12] FIG. 12(A) is a front view of a fibrous separator according to a first modified example, and FIG. 12(B) is a cross-sectional view showing a tubular conductive portion according to the first modified example. [Figure 13] FIG. 11 is a schematic diagram showing a fiber waste recovery device according to a second modified example. [Figure 14] FIG. 11 is a schematic diagram showing a fiber waste recovery device according to a third modified example. [Figure 15] FIG. 11 is a plan view of a fiber scrap separator according to a fourth modified example. [Figure 16] FIG. 13 is a perspective view of a fiber debris separator according to a fifth modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. waste The fiber waste recovery device according to the present invention can be widely used for various purposes, such as a fiber waste recovery device that recovers fiber waste and a fiber waste separator that is provided in the fiber waste recovery device.

[0026] FIG. 1 is a schematic diagram of a false twisting machine 101 as a textile machine in which a fiber waste recovery device 1 (see FIG. 2) is installed. FIG. 2 is a schematic diagram showing an example of a fiber waste recovery device 1 according to an embodiment of the present invention and an example of a fiber waste separator 30 according to an embodiment of the present invention provided in the fiber waste recovery device 1. The fiber waste recovery device 1 is installed in a textile machine such as a false twisting machine 101 or a spinning machine. In this embodiment, the false twisting machine 101 will be taken as an example of a textile machine in which the fiber waste recovery device 1 is installed. In the following description, first, the false twisting machine 101 in which the fiber waste recovery device 1 is installed will be described, and then the fiber waste recovery device 1 according to an embodiment of the present invention and the fiber waste separator 30 according to an embodiment of the present invention provided in the fiber waste recovery device 1 will be described. For convenience of description, the vertical, front-rear, and left-right directions of the false twisting machine 101 and the fiber waste recovery device 1 are as shown in FIG. 1 and FIG. 2.

[0027] [False twisting machine] The false twisting machine 101 is configured as a textile machine that produces a highly elastic processed yarn by applying false twist to thermoplastic synthetic fibers such as polyester and polyamide to give them crimp. Referring to FIG. 1, in the false twisting machine 101, a main machine base 102 is arranged extending in the vertical direction. Furthermore, the false twisting machine 101 has a yarn supply creel 104 arranged opposite to the main machine base 102 across a working space 103 and holding a plurality of yarn supply packages 105, a false twisting device 106 arranged above the main machine base 102 and false twisting the fiber Y as a yarn supplied from the yarn supply creel 104, and a winding device 107 provided on the main machine base 102 and winding the fiber Y false twisted by the false twisting device 106. The winding device 107 is provided in four stages along the vertical direction. Furthermore, a plurality of winding devices 107 are provided side by side along the front-rear direction in each stage from the first stage to the fourth stage. In addition, the front-to-rear direction in which the multiple winding devices 107 are arranged in each of the four vertically arranged tiers is a direction along the horizontal direction and is perpendicular to the direction in which the yarn supplying creel 104 and the main machine base 102 are arranged (left-right direction).

[0028] On the yarn path from the yarn supplying creel 104 to the false twisting device 106, a first feed roller 108, a shifter guide 109, a first heating device 110, and a cooling device 111 are arranged in this order from the upstream side in the yarn running direction. Also, on the yarn path from the false twisting device 106 to the winding device 107, a second feed roller 112, an interlace nozzle 113, a second heating device 114, a third feed roller 115, and an oiling roller 116 are arranged in this order from the upstream side in the yarn running direction.

[0029] The first feed roller 108 is disposed above the working space 103. The first heating device 110 is disposed above the working space 103, further above the first feed roller 108. The cooling device 111 is disposed closer to the main machine base 102 than the first heating device 110 above the working space 103. The first heating device 110 and the cooling device 111 are disposed above the working space 103, so as to extend obliquely upward while moving away from the main machine base 102. The shifter guide 109 is disposed between the first feed roller 108 and the first heating device 110 in the vertical direction, and is used to pass the fiber Y through the first heating device 110 and the cooling device 111 when threading the yarn on the false twisting machine 101.

[0030] The second feed roller 112 is disposed above the main machine base 102. The interlace nozzle 113 is disposed above the main machine base 102 and below the second feed roller 112. The second heating device 114 is provided on the main machine base 102, and is disposed behind the winding device 107 as viewed from the working space 103, and extends vertically from the first stage to the fourth stage of the four-stage winding device 107. With each device laid out in this manner, the yarn path from the yarn supplying creel 104 to the winding device 107 is formed to surround the working space 103.

[0031] In the false twisting machine 101, the fiber Y as a yarn fed from the yarn feeding creel 104 is fed through the above-mentioned devices and wound by the winding device 107 to form a package 117. First, the first to third feed rollers (108, 112, 115) are rollers for feeding the fiber Y from the upstream side to the downstream side in the yarn running direction, and each yarn feed speed is set so that the yarn feed speed of the second feed roller 112 is faster than the yarn feed speed of the first feed roller 108. Therefore, the fiber Y is stretched between the first feed roller 108 and the second feed roller 112. In addition, each yarn feed speed is set so that the yarn feed speed of the third feed roller 115 is slower than the yarn feed speed of the second feed roller 112. Therefore, the fiber Y is relaxed between the second feed roller 112 and the third feed roller 115.

[0032] Then, the fiber Y drawn between the first feed roller 108 and the second feed roller 112 is twisted by the false twist device 106, which is, for example, a friction disk type twister, and then fed. The twist formed by the false twist device 106 is propagated to the first feed roller 108, and the fiber Y twisted while being drawn is heated by the first heating device 110 and then cooled by the cooling device 111, whereby the twist is fixed. After passing through the false twist device 106, the twisted and heat-fixed fiber Y is untwisted before reaching the second feed roller 112.

[0033] The fibers Y thus subjected to the stretch-twisting process are appropriately entangled in the interlace nozzle 113, and are given a bundling property. Then, the fibers Y are subjected to a relaxation heat treatment in the second heating device 114, and are wound around a paper tube by the winding device 107 via an oiling roller 116 to form a package 117. The fully wound package 117 is then removed from the winding device 107 by an operator. A new paper tube is then attached to the winding device 107 by the operator, and the winding operation around the paper tube is resumed. In this manner, the package 117 is replaced. The fiber waste recovery device 1 of this embodiment is installed and used in the false twisting machine 101 described above. The fiber waste recovery device 1 of this embodiment will be described below.

[0034] [Outline of fiber waste collection device] Referring to FIG. 2, the fiber waste recovery device 1 mainly includes, for example, a plurality of fiber waste transfer pipes 11 (11a to 11d), one fiber waste collection container 13 provided for the plurality of fiber waste transfer pipes 11 (11a to 11d), a plurality of fiber waste separators 30 provided for each of the plurality of fiber waste transfer pipes 11 (11a to 11d), and a plurality of conductive parts 34 provided for each of the plurality of fiber waste separators 30. Therefore, in the fiber waste recovery device 1, a plurality of fiber waste transfer pipes 11 (11a to 11d) are provided, and one fiber waste separator 30 is provided for each of the plurality of fiber waste transfer pipes 11 (11a to 11d). The fiber waste transfer pipes 11 (11a to 11d) are pipes that transfer fiber waste together with air. The fiber waste collection container 13 is a container that collects fiber waste transferred inside the fiber waste transfer pipes 11 (11a to 11d). The multiple fiber waste separators 30 are disposed between the fiber waste transfer pipes 11 (11a to 11d) and the fiber waste collection container 13. The fiber waste separators 30 separate the fiber waste transferred through the fiber waste transfer pipes 11 from the air and collect the separated fiber waste in the fiber waste collection container 13, as will be described in detail below. The above-mentioned "fiber waste" includes lint (fiber waste formed by gathering fibers) and the like. The above-mentioned "fiber waste collection container 13" corresponds to the "fiber waste collection section" of the present invention.

[0035] The fiber waste recovery device 1 is installed in the false twisting machine 101 described above. With reference to FIG. 1, the fiber waste recovery device 1 has a plurality of fiber waste transfer pipes 11 arranged corresponding to the respective stages of the winding devices 107 arranged, for example, in four stages in the vertical direction in the false twisting machine 101. For this reason, the fiber waste recovery device 1 of this embodiment in which the four stages of the winding devices 107 are arranged is provided with four fiber waste transfer pipes 11 (11a to 11d). Each of the fiber waste transfer pipes 11 (11a to 11d) is arranged to extend along the front-rear direction. In each stage of the winding devices 107 from the first stage to the fourth stage, the winding devices 107 are arranged along the front-rear direction, and each of the fiber waste transfer pipes 11 (11a to 11d) is also arranged to extend along the front-rear direction in which the winding devices 107 are arranged. Each fiber waste transfer pipe 11 (11a to 11d) sucks fiber waste generated as fiber Y from the area near each winding device 107 arranged in the front-rear direction in each stage of the winding devices 107 arranged vertically in four stages, and transfers the fiber waste together with air. Each of the four fiber waste transfer pipes 11 (11a to 11d) is connected to a common fiber waste collection container 13. Then, the air containing fiber waste of fiber Y transferred inside each fiber waste transfer pipe 11 (11a to 11d) is separated into fiber waste as fiber Y and clean air after the fiber waste is separated in the fiber waste separator 30. The fiber waste separated from the air is collected in the fiber waste collection container 13. The clean air after the fiber waste is separated is discharged to the outside from an air discharge section 32 (see FIG. 5 described later). The fiber Y is, for example, polyester fiber or polyamide fiber, and the fiber waste generated as fiber Y is also, for example, polyester fiber or polyamide fiber.

[0036] Incidentally, the fiber waste recovery device 1 is provided with a fiber waste separator 30, and the air after the fiber waste is separated is discharged to the outside from an air discharge section 32 (see FIG. 5 described later) of the fiber waste separator 30, so that the number of fiber waste recovery containers 13 can be made smaller than the number of fiber waste transfer pipes 11 (11a to 11d). This allows the fiber waste recovery device 1 to be made compact overall. That is, the fiber waste recovery device 1 is provided with the fiber waste separator 30, so that the fiber waste can be discharged in a ball-like shape, and the volume occupied by the fiber waste inside the fiber waste recovery container 13 can be reduced. In addition, by separating the fiber waste from the air and discharging the air after the fiber waste is separated from it from the air discharge section 32, the volume occupied by the air can be reduced compared to a system in which the air cannot be separated, such as a conventional fiber waste recovery device in which a blower is connected to the fiber waste transfer pipes 11 (11a to 11d), for example. As a result, in the fiber waste recovery device 1 of this embodiment, it is possible to store more fiber waste in the fiber waste recovery container 13 than in conventional fiber waste recovery devices, and the number of fiber waste recovery containers 13 can be reduced. Furthermore, if the number of fiber waste recovery containers 13 is small, it is possible to reduce the burden on workers, such as by reducing the frequency of replacement. Note that in this embodiment, one fiber waste recovery container 13 is provided for each of the multiple fiber waste transfer pipes 11 (11a to 11d), but this is not limited thereto, and it is sufficient that the number of fiber waste recovery containers 13 is smaller than the number of fiber waste transfer pipes 11 (11a to 11d).

[0037] The fiber waste recovery device 1 deposits the yarn so as not to cut it when the yarn is changed over in the winding device 107 of the false twisting machine 101, and recovers the yarn as yarn waste (fiber waste). That is, as shown in FIG. 1, the fiber waste recovery device 1 is used to recover the fiber Y, which continues to be supplied from the yarn supply creel 104 to the area near the winding device 107 through each device (110, 111, 106, 114), etc., from the suction section when the fiber Y is hung on the false twisting machine 101 or when the package 117 formed by the winding device 107 of the false twisting machine 101 is replaced, as fiber waste. In this way, when the package 117 is replaced by the winding device 107 of the false twisting machine 101, the fiber waste generated as the fiber Y that continues to be supplied to the area near the winding device 107 can be recovered, so that there is no need to cut the yarn, and the operation of the false twisting machine 101 can be continued. The details of the configuration of the fiber waste recovery device 1 will be described in more detail below.

[0038] [Textile waste transport piping] Referring to FIG. 2, the fiber waste transfer pipes 11 (11a-11d) are provided with a plurality of suction sections 15 for sucking in fiber waste generated as the fiber Y (see FIG. 1) in the vicinity of each winding device 107, and are configured as a pipe through which the fiber waste of the fiber Y sucked in from the plurality of suction sections 15 is transferred. The fiber waste transfer pipes 11 are formed of a metal material having electrical conductivity, and are conductors. The suction sections 15 for sucking in the fiber waste of the fiber Y will be described later. The fiber waste transfer pipes 11 are provided, for example, in the shape of a hollow circular tube. A plurality of fiber waste transfer pipes 11 (11a-11d) are provided, and in this embodiment, four are provided as described above.

[0039] The four fiber waste transfer pipes 11 (11a to 11d) include a first fiber waste transfer pipe 11a corresponding to the first winding device 107 at the bottom, a second fiber waste transfer pipe 11b corresponding to the second winding device 107 from the bottom, a third fiber waste transfer pipe 11c corresponding to the third winding device 107 from the bottom, and a fourth fiber waste transfer pipe 11d corresponding to the fourth winding device 107 at the top. Each of the fiber waste transfer pipes 11 (11a to 11d) is disposed in the false twisting machine 101 with its longitudinal direction extending along the front-rear direction. Furthermore, each of the first to fourth fiber waste transfer pipes (11a to 11d) is disposed so as to extend along the front-rear direction at a position corresponding to each of the first to fourth winding devices 107. In addition, in this embodiment, the fiber waste separator 30 includes a first fiber waste separator 30a provided between the first fiber waste transfer pipe 11a and the fiber waste collection container 13, a second fiber waste separator 30b provided between the second fiber waste transfer pipe 11b and the fiber waste collection container 13, a third fiber waste separator 30c provided between the third fiber waste transfer pipe 11c and the fiber waste collection container 13, and a fourth fiber waste separator 30d provided between the fourth fiber waste transfer pipe 11d and the fiber waste collection container 13.

[0040] Each fiber waste transport pipe 11 (11a to 11d) has one end (the rear end shown in Figure 2) in the longitudinal direction extending in the front-to-rear direction closed, and the other end (the front end shown in Figure 2) connected to the fiber waste separator 30.

[0041] [Suction section] 2, the suction section 15 is provided as a mechanism for sucking in fiber waste generated as fibers Y (see FIG. 1), and a plurality of suction sections 15 are provided in each fiber waste transfer pipe 11 (11a to 11d). The plurality of suction sections 15 provided in each fiber waste transfer pipe 11 are configured with a suction pipe 16 and an opening / closing mechanism 17 (see FIG. 3 described later), and are arranged side by side in the longitudinal direction of the fiber waste transfer pipe 11 (11a to 11d). Each of the plurality of suction sections 15 arranged side by side in each fiber waste transfer pipe 11 (11a to 11d) is provided at a position corresponding to the winding device 107 in each fiber waste transfer pipe 11 (11a to 11d). More specifically, each of the multiple suction sections 15 is provided in each fiber waste transport pipe 11 (11a to 11d) at a position corresponding to each of the winding devices 107 arranged in the front-to-rear direction in each tier of winding devices 107 (see Figure 1) that are arranged vertically in, for example, four tiers in the false twist processing machine 101 (see Figure 1).

[0042] The suction sections 15 provided in the first to fourth fiber waste transfer pipes 11 (11a to 11d) are all configured in the same manner. Moreover, the suction sections 15 provided in a line in each of the fiber waste transfer pipes 11 (11a to 11d) are all configured in the same manner.

[0043] The suction pipe 16 is provided as a tubular member for sucking in fiber waste generated as the fibers Y (see FIG. 1), has a pipe diameter smaller than that of the fiber waste transfer pipe 11 (11a to 11d), and is provided so as to bend and extend along the way. One end of the suction pipe 16 communicates with the fiber waste transfer pipe 11 (11a to 11d), and the other end is provided with a suction port 16a (see FIG. 3) that is disposed near the winding device 107 (see FIG. 1) and sucks in the fiber waste of the fibers Y. The fiber waste of the fibers Y sucked in through the suction port 16a flows into the fiber waste transfer pipe 11.

[0044] FIG. 3 is a cross-sectional view showing an example of the suction section 15 provided in the fiber waste transfer pipe 11. In FIG. 3, the opening / closing member 19 is pushed upward to open the suction port 16a. Referring to FIG. 3, the suction pipe 16 is connected to the fiber waste transfer pipe 11 (11a to 11d) in a state of being inclined at an angle. The suction pipe 16 is connected to the fiber waste transfer pipe 11 (11a to 11d) at an acute angle with the direction from the upstream side (rear side shown in FIG. 3) to the downstream side (front side shown in FIG. 3) of the flow of air flowing inside the fiber waste transfer pipe 11. That is, the suction pipe 16 is connected to the fiber waste transfer pipe 11 (11a to 11d) at an acute angle with the direction from one end side (rear side shown in FIG. 3) to the other end side (front side shown in FIG. 3) connected to the fiber waste collection container 13. Therefore, when the fiber waste of fiber Y (see FIG. 1) sucked in from the suction port 16a (see FIG. 3) flows into the fiber waste transfer piping 11, it flows in along the direction from the upstream side to the downstream side of the air flow in the fiber waste transfer piping 11. The fiber waste of fiber Y that has flowed into the fiber waste transfer piping 11 is transferred to the downstream side by the air flow flowing in the fiber waste transfer piping 11.

[0045] The suction pipe 16 is provided with a compressed air jet nozzle hole 16d and a guide path 16e. The compressed air jet nozzle hole 16d is provided as a nozzle hole for jetting compressed air into the suction pipe 16 between one end side where the outlet opening 16b is provided and the other end side where the suction port 16a is provided. The compressed air jet nozzle hole 16d is configured to jet compressed air toward one end side, which is the outlet opening 16b side, in the suction pipe 16. In this embodiment, two compressed air jet nozzle holes 16d are provided. Both of the two compressed air jet nozzle holes 16d extend from the suction port 16a side toward the outlet opening 16b side and from the outer periphery side toward the inner periphery side of the suction pipe 16, thereby communicating with the suction flow path 16c. With this configuration, both of the two compressed air jet nozzle holes 16d are configured to jet compressed air toward the outlet opening 16b side in the suction pipe 16. The number of compressed air jet nozzle holes 16d is not limited to two.

[0046] The induction path 16e of the suction pipe 16 is provided as a flow path for compressed air that extends annularly along the circumferential direction of the suction pipe 16. The induction path 16e communicates with the compressed air injection nozzle hole 16d and also communicates with a cylinder chamber 20 described below. The compressed air supplied to the cylinder chamber 20 flows into the induction path 16e, flows from the induction path 16e into the compressed air injection nozzle hole 16d, and is injected into the suction flow path 16c.

[0047] The cylinder chamber 20 is formed as a cylindrical space inside the main body 18, and is configured to be supplied with compressed air. The cylinder chamber 20 communicates with the induction path 16e of the suction pipe 16 via a communication path 20a provided inside the main body 18. Therefore, the compressed air supplied to the cylinder chamber 20 flows into the induction path 16e and further flows into the compressed air injection nozzle hole 16d. In addition, a compressed air supply pipe 23 that supplies compressed air to be injected from the compressed air injection nozzle hole 16d of the suction pipe 16 is connected to and communicates with the cylinder chamber 20. The compressed air supply pipe 23 is connected to a compressed air supply source (not shown) that supplies compressed air. The compressed air supply pipe 23 is provided with an electromagnetic valve 24 that controls the supply of compressed air to the cylinder chamber 20 by opening and closing so as to be switched between a communication state and a cut-off state. When the electromagnetic valve 24 is opened, the compressed air supply pipe 23 is in a communication state, and compressed air is supplied from the compressed air supply pipe 23 to the cylinder chamber 20. When the solenoid valve 24 is closed, the compressed air supply pipe 23 is shut off, and the supply of compressed air from the compressed air supply pipe 23 to the cylinder chamber 20 is cut off.

[0048] In the suction section 15, when the solenoid valve 24 is closed and the compressed air supply pipe 23 is cut off so that compressed air is not supplied to the cylinder chamber 20, the opening / closing member 19 rotates around the rotation shaft 29 by the biasing force of the spring member 22 arranged in the spring chamber 25, and the suction port 16a is closed. In this state, the suction section 15 does not suck in the fiber waste generated as fibers Y (see FIG. 1). On the other hand, when the solenoid valve 24 is open and the compressed air supply pipe 23 is connected so that compressed air is supplied to the cylinder chamber 20, the piston 21 is displaced upward to push the opening / closing member 19 upward, and the suction port 16a is opened. Furthermore, when compressed air is supplied to the cylinder chamber 20, the compressed air flows into the compressed air injection nozzle hole 16d, and the compressed air is injected from the compressed air injection nozzle hole 16d into the suction flow passage 16c of the suction pipe 16. The compressed air injected into the suction flow passage 16c is injected toward the outlet opening 16b. In this way, the compressed air injected into the suction pipe 16 from the compressed air injection nozzle hole 16d generates an air flow in the suction pipe 16 that sends the fiber waste of the fiber Y to the fiber waste transfer piping 11, and in turn generates an air flow inside the fiber waste transfer piping 11 that sends the fiber waste of the fiber Y to the fiber waste separator 30 (the front side shown in FIG. 3). In this way, the fiber waste of the fiber Y sucked in from the suction port 16a can be transferred inside the fiber waste transfer piping 11.

[0049] The embodiment is not limited to a specific embodiment as long as the fiber waste generated as fiber Y (see FIG. 1) can be sucked from the suction port and the fiber waste of the sucked fiber Y can be transported inside the fiber waste transport piping 11 (11a-11d). For example, compressed air may be injected into the suction pipe 16 as described above, or the inside of the fiber waste transport piping 11 may be suctioned with a blower, for example, to create a negative pressure.

[0050] In addition, the air flow velocity in the fiber waste transfer pipe 11 (11a to 11d) is preferably 1000 m / min or more. Therefore, when the air flow velocity in the fiber waste transfer pipe 11 is less than 1000 m / min, for example, a connection part for supplying compressed air may be provided at one end (for example, the rear end) of the fiber waste transfer pipe 11 (11a to 11d) so that compressed air supplied from a compressed air supply source (not shown) can be supplied from one end side of the fiber waste transfer pipe 11 (11a to 11d) to the fiber waste transfer pipe 11 (11a to 11d). In addition, a blower that has been conventionally provided may be provided near the fiber waste separator 30 to suck the inside of the fiber waste transfer pipe 11 (11a to 11d) and make up for the deficiency required to meet the air flow velocity of 1000 m / min, for example.

[0051] [Fiber separator and conductive parts] FIG. 4 is an example of a perspective view showing a plurality of fiber debris separators 30 and a fiber debris collection container 13 in the fiber debris recovery device 1. FIG. 5 is a perspective view showing an example of the fiber debris separator 30. FIG. 6 is a plan view showing an example of the fiber debris separator 30. FIG. 7 is an example of a front view of the fiber debris separator 30. As described above, this embodiment includes the first fiber debris separator 30a to the fourth fiber debris separator 30d, and the first fiber debris separator 30a to the fourth fiber debris separator 30d all have the same configuration. Furthermore, the first fiber debris separator 30a to the fourth fiber debris separator 30d all constitute the "fiber debris separator" of the present invention.

[0052] 4 to 7, the fiber waste separator 30 is configured to include a separation section 31 that is connected to the fiber waste transfer pipe 11 and separates the fiber waste transferred through the fiber waste transfer pipe 11 from the air, an air discharge section 32 provided on the upper end side of the separation section 31, and a fiber waste discharge section 33 provided on the lower end side of the separation section 31. A conductive section 34 provided corresponding to the fiber waste separator 30 is provided integrally with or connected to the separation section 31. The air discharge section 32 is connected to the upper end side of the separation section 31 and configured to discharge the air after the fiber waste is separated. The fiber waste discharge section 33 is configured to discharge the fiber waste separated from the air by the separation section 31 to the fiber waste collection container 13 and collect it in the fiber waste collection container 13. The conductive section 34 is provided to electrically connect the separation section 31 to an external conductor.

[0053] The separation section 31 is configured to have a cylindrical main body section 35 and a tapered section 36 provided below the main body section 35. The main body section 35 and the tapered section 36 are provided integrally. The main body section 35 and the tapered section 36 provided integrally are both made of a resin material having electrical conductivity. That is, the separation section 31 formed by providing the main body section 35 and the tapered section 36 integrally is made of a resin material having electrical conductivity. The resin material having electrical conductivity is configured as a material in which an inorganic conductor such as metal powder or carbon fiber is kneaded into the resin material, for example.

[0054] The main body 35 of the separation section 31 is cylindrical and configured to be connected to the fiber waste transfer pipe 11. The main body 35 includes a cylindrical section 37 that constitutes a cylindrical side wall and an upper surface section 38 that constitutes the upper end surface of the cylindrical section 37. An opening 38a that is concentric with the cylindrical section 37 and has a smaller diameter than the cylindrical section 37 is formed in the upper surface section 38. The cylindrical section 37 is provided with a connection port 37a to which the fiber waste transfer pipe 11 is connected. The connection port 37a is provided as a short circular tube-shaped section that communicates with the inside of the cylindrical section 37 and opens to the outside. The end of the fiber waste transfer pipe 11 is fitted and fitted into the opening to the outside of the connection port 37a, thereby connecting the fiber waste transfer pipe 11 to the cylindrical section 37 of the main body 35.

[0055] The tapered portion 36 is provided below the main body 35 and is configured to be continuous with the fiber waste discharge portion 33. The upper end of the tapered portion 36 is a circle having the same diameter as the cylindrical portion 37, and the lower end is a circle having a smaller diameter than the upper end. The upper and lower ends of the tapered portion 36 are open, and the tapered portion 36 has an inclined portion 39 that tapers linearly from the upper end to the lower end when viewed from the front. The inclined portion 39 of the tapered portion 36 is formed so that the diameter becomes smaller from the connection portion with the main body 35 toward the fiber waste discharge portion 33. The angle θ of the acute angle side between the vertical direction and the direction of the inclined portion 39 (hereinafter referred to as the "taper angle θ") is preferably within the range of 7 to 10° (including upper and lower limits). The upper end of the tapered portion 36 is connected to the lower end of the cylindrical portion 37. Furthermore, there is no member separating the inside of the tapered portion 36 from the inside of the main body portion 35, and the inside of the tapered portion 36 communicates with the inside of the main body portion 35. The "tapered portion 36" corresponds to the "fiber waste transfer portion" of the present invention.

[0056] The conductive portion 34 is provided to electrically connect the separation portion 31 to an external conductor. In this embodiment, the conductive portion 34 is provided integrally with the main body portion 35 of the separation portion 31 and configured as a flange portion along the outer periphery of the main body portion 35. The conductive portion 34 constitutes the "flange-shaped conductive portion" of the present invention. The conductive portion 34 provided as a flange-shaped conductive portion is formed in a ring shape along the outer periphery of the cylindrical portion 37 of the main body portion 35 and is provided integrally with the outer periphery of the cylindrical portion 37. The conductive portion 34 is made of, for example, a resin material having conductivity and is molded integrally with the main body portion 35.

[0057] Referring to FIG. 4, the fiber waste separator 30 has a lower end connected to an upper end of the fiber waste collection container 13 and is supported by a support frame 40 installed above the fiber waste collection container 13. Both the fiber waste collection container 13 and the support frame 40 are made of metal materials and are conductive conductors. The support frame 40 has a support table 40a that supports the fiber waste separator 30, and the support table 40a is provided with a through hole into which the fiber waste separator 30 is fitted and for supporting the fiber waste separator 30. The fiber waste separator 30 is supported by the support table 40a of the support frame 40 in a state in which the separation part 31 of the fiber waste separator 30 is fitted in the through hole of the support table 40a. In a state in which the separation part 31 of the fiber waste separator 30 is fitted in the through hole of the support table 40a, the conductive part 34 of the fiber waste separator 30 abuts against the edge of the through hole of the support table 40a, and the conductive part 34 is supported by the support table 40a. As a result, the fiber waste separator 30 is supported by the support frame 40. When the conductive portion 34, which is integral with the separating portion 31, is in contact with the support table 40a, the conductive portion 34 and the supporting frame 40, which is a conductor, are electrically connected. As a result, the conductive portion 34 is configured to electrically connect the separating portion 31 to the supporting frame 40, which is an external conductor.

[0058] 4 to 7, the fiber waste discharge section 33 is cylindrical with both ends open, and the inner diameter of the fiber waste discharge section 33 and the inner diameter of the lower end of the tapered section 36 are the same size. The upper end of the fiber waste discharge section 33 is connected to the lower end of the tapered section 36 so as to be concentric with the lower end of the tapered section 36. The lower end of the fiber waste discharge section 33 is connected to the fiber waste collection container 13 (see FIG. 4). There is no member between the fiber waste discharge section 33 and the tapered section 36 that separates the interiors of the fiber waste discharge section 33 and the main body section 35, and the interior of the fiber waste discharge section 33 communicates with the interior of the main body section 35. The fiber waste discharge section 33 may be provided integrally with or connected to the lower end of the tapered section 36 of the separation section 31. When the fiber waste discharge section 33 is provided integrally with the tapered section 36, the fiber waste discharge section 33 is made of a conductive resin material, similar to the tapered section 36.

[0059] 4 to 7, the air discharge section 32, which discharges the air after the fiber waste is separated to the outside, is connected to the separation section 31 above the separation section 31. The air discharge section 32 has a cylindrical pipe material with both ends open, and the inner diameter of the air discharge section 32 and the diameter of the opening 38a of the upper surface section 38 are the same size. The air discharge section 32 is connected to the opening 38a at its lower end so as to be concentric with the opening 38a. More specifically, the air discharge section 32 is connected to the main body section 35 so that the cylindrical portion of the air discharge section 32 does not enter the inside of the main body section 35 of the separation section 31 or enters only slightly therein, and the lower end of the cylindrical part of the air discharge section 32 is flush with the lower surface of the upper surface section 38 of the separation section 31 (more specifically, the main body section 35), or so that the lower end of the air discharge section 32 slightly protrudes from the lower surface of the upper surface section 38.

[0060] As shown in the example of Fig. 7, even if the lower end 32a of the cylindrical part of the air discharge part 32 slightly protrudes from the lower surface of the upper surface part 38, it is preferable that the lower end 32a of the air discharge part 32 is above the upper end 11e of the fiber waste transfer pipe 11. According to the knowledge of the present inventors, if the lower end 32a of the cylindrical part of the air discharge part 32 is below the upper end 11e of the fiber waste transfer pipe 11, the fiber waste will become entangled in the cylindrical part of the air discharge part 32, and good separation of the fiber waste and the air will be hindered. Therefore, by making the lower end 32a of the cylindrical part of the air discharge part 32 at least above the upper end 11e of the fiber waste transfer pipe 11, it is possible to prevent the fiber waste from becoming entangled in the cylindrical part of the air discharge part 32, and to good separation of the fiber waste and the air. In this embodiment, as shown in Figure 5 above, when the lower end of the cylindrical portion of the air discharge section 32 is flush with the lower surface of the upper surface portion 38 of the main body portion 35 (see Figure 5), the lower end 32a of the cylindrical portion of the air discharge section 32 is above the upper end portion 11e of the fiber waste transport piping 11, and the fiber waste and air can be separated well.

[0061] However, when multiple fiber waste transfer pipes 11 (11a-11d) are connected to one fiber waste separator 30, the connection position between the fiber waste transfer pipes 11 (11a-11d) and the fiber waste separator 30 is restricted. For example, the connection position between one fiber waste transfer pipe 11a among the multiple fiber waste transfer pipes 11 (11a-11d) and the fiber waste separator 30 is restricted by the other fiber waste transfer pipes 11b-11d. This may make it impossible to connect one fiber waste transfer pipe 11a to the fiber waste separator 30 so as to be lower than the lower end of the cylindrical portion of the air discharge section 32. Therefore, by connecting each of the multiple fiber waste transfer pipes 11 (11a to 11d) to the fiber waste separator 30 on a one-to-one basis, the fiber waste transfer pipes 11 (11a to 11d) can be connected to the fiber waste separator 30 at an appropriate position where the fiber waste and air are separated well, i.e., at a position where the fiber waste transfer pipes 11 (11a to 11d) are below the lower end of the cylindrical portion of the air discharge section 32.

[0062] There is no member separating the interiors of the air discharge section 32 and the separation section 31 (more specifically, the main body section 35), and the interiors of the air discharge section 32 and the separation section 31 are connected to each other. According to the inventor's findings, when the inner diameter of the fiber waste discharge section 33 (i.e., the inner diameter of the lower end of the tapered section 36) is larger than the inner diameter of the air discharge section 32 (i.e., the diameter of the opening 38a), separation of the fiber waste and the air becomes insufficient, and the fiber waste may be discharged from the air discharge section 32. For this reason, it is preferable that the inner diameter of the fiber waste discharge section 33 (i.e., the inner diameter of the lower end of the tapered section 36) is smaller than the inner diameter of the air discharge section 32 (i.e., the diameter of the opening 38a).

[0063] In this embodiment, both the air discharge section 32 and the fiber waste discharge section 33 are cylindrical, but they may be rectangular tubular. In this case, it is preferable that the opening area along the horizontal direction at the portion communicating with the inside of the main body 35 (i.e., the connection portion with the top surface section 38) is larger than the opening area along the horizontal direction of the fiber waste discharge section 33.

[0064] As shown in Fig. 6, the fiber waste transfer pipe 11 is connected to the cylindrical portion 37 of the main body portion 35 at the upper portion of the main body portion 35 so that the longitudinal direction is along the inner peripheral wall 37b of the cylindrical portion 37 of the main body portion 35 of the separation portion 31. That is, the fiber waste transfer pipe 11 is connected to the main body portion 35 so as to be along a tangent to the cylindrical portion 37 of the main body portion 35 of the separation portion 31 in a plan view. In other words, the fiber waste transfer pipe 11 and the main body portion 35 of the separation portion 31 are connected so that the traveling direction of the air containing fibers as fiber waste transferred inside the fiber waste transfer pipe 11 is along the inner peripheral wall 37b of the cylindrical portion 37. By connecting the fiber waste transfer pipe 11 and the separation portion 31 in this manner, the air containing fiber waste transferred inside the fiber waste transfer pipe 11 moves in the circumferential direction along the inner peripheral wall 37b of the cylindrical portion 37, as shown in Fig. 5. Therefore, the fiber waste contained in the air is moved downward while rotating in the circumferential direction along the inner peripheral wall 37b of the cylindrical portion 37 due to the centrifugal force, i.e., the action of centrifugation. The fiber waste that has moved downward while rotating along the inner peripheral wall 37b of the cylindrical portion 37 is further transferred toward the fiber waste discharge portion 33 along the inner wall 39a of the inclined portion 39. The fiber waste transferred toward the fiber waste discharge portion 33 is transferred from the fiber waste discharge portion 33 to the fiber waste collection container 13 (see FIG. 4). In this way, the fiber waste is separated from the air containing the fiber waste that has been transferred inside the fiber waste transfer pipe 11, and the separated fiber waste is collected in the fiber waste collection container 13. Meanwhile, the air from which the fiber waste has been separated is discharged to the outside from the air discharge portion 32.

[0065] Furthermore, when each of the multiple fiber waste transport pipes 11 (11a to 11d) is connected one-to-one to the separation section 31 of the fiber waste separator 30, the fiber waste transport pipes 11 (11a to 11d) and the separation section 31 can be connected at an appropriate position, and the inner wall 37b of the cylindrical section 37 can be secured, so that the fiber waste can be reliably sent to the tapered section 36.

[0066] [Effects] According to the fiber waste recovery device 1 and the fiber waste separator 30 of this embodiment, 35The fiber waste transferred to the fiber waste separator 30 moves downward to the tapered portion 36, which is a fiber waste transfer portion, inside the cylindrical main body portion 35 by the air flow along the inner circumference of the main body portion 35. The fiber waste that has moved downward is gathered into a ball at the tapered portion 36, which has an inclined portion 39, and is discharged from the fiber waste discharge portion 33 and collected in the fiber waste collection container 13, which is a fiber waste collection portion. Furthermore, the air from which the fiber waste has been separated is discharged from the air discharge portion 32. Thus, according to the fiber waste collection device 1 and fiber waste separator 30 of this embodiment, the fiber waste and the air are suitably separated, and it is possible to prevent the fiber waste from being discharged to the outside from the air discharge portion 32.

[0067] In addition, when the separating section 31 having a complex shape including the cylindrical main body 35 and the inclined section 39 whose diameter decreases from the connection section with the cylindrical main body 35 toward the fiber waste discharge section 33 is formed from a metal material, it is necessary to form the separating section 31 by welding a plurality of members. For this reason, burrs are generated at the welded portion, and the fiber waste gets caught at the burr portion, which reduces the efficiency of collecting the fiber waste into the fiber waste collection container 13. However, according to the fiber waste collection device 1 and the fiber waste separator 30 of this embodiment, the separating section 31 is formed from a resin material, so that no burrs are generated by welding, and even a complicated shape in which the cylindrical main body 35 and the inclined section 39 are connected can be easily formed by injection molding of the resin. In addition, according to the fiber waste collection device 1 and the fiber waste separator 30 of this embodiment, the separating section 31 is made of a resin material having electrical conductivity, and further, a conductive section 34 is provided to electrically connect the separating section 31 to the support frame 40, which is an external conductor. Therefore, static electricity generated by friction between the fiber waste separated from the air in the separation section 31 and the separation section 31 flows from the separation section 31 to the conductive section 34 and is released, preventing the separation section 31 from becoming charged. This makes it possible to prevent the fiber waste from adhering to the separation section 31 due to static electricity, and to prevent a decrease in the efficiency of fiber waste collection into the fiber waste collection container 13.

[0068] Furthermore, according to the fiber waste collection device 1 and fiber waste separator 30 of this embodiment, the fiber waste can be moved downward to the tapered portion 36 along the inner circumferential wall 37b of the cylindrical main body portion 35 by centrifugal force, and gathered into a ball at the tapered portion 36 having the inclined portion 39, and collected in the fiber waste collection container 13. This makes it possible to more effectively separate the fiber waste from the air, and further suppress the fiber waste from being discharged to the outside from the air discharge portion 32.

[0069] In addition, according to the fiber waste recovery device 1 of this embodiment, a flange-shaped conductive portion configured as a flange portion along the outer periphery of the main body portion 35 is provided as the conductive portion 34, so that static electricity generated in the separation portion 31 can be efficiently dissipated to the outside around the entire circumference of the separation portion 31.

[0070] Furthermore, according to the fiber debris collection device 1 and fiber debris separator 30 of this embodiment, the air discharge section 32 is arranged to communicate with the interior of the separation section 31 while preventing it from entering the interior of the separation section 31, so that the fiber debris does not become entangled in the air discharge section 32, and separation of the fiber debris and the air can be performed well.

[0071] In a general triboelectric series, polyester is easily negatively charged, and polyamide is easily positively charged. For this reason, when the separating section 31 is made of, for example, non-conductive polyester, the fiber waste of polyester fiber can be prevented from adhering to the separating section 31 due to static electricity, but the fiber waste of polyamide fiber is easily adhering to the separating section 31 due to static electricity. Therefore, when the separating section 31 is made of, for example, non-conductive polyester, it is difficult to prevent the adhesion of polyamide fiber. However, since the separating section 31 is made of a conductive resin material, according to the fiber waste separator 30 of this embodiment, whether the fiber waste is polyester fiber or polyamide fiber, static electricity generated by friction between the fiber waste and the separating section 31 is released from the separating section 31 to the conductive section 34, and the separating section 31 can be prevented from being charged. Therefore, whether the fiber waste is polyester fiber or polyamide fiber, the fiber waste can be prevented from adhering to the separating section 31 due to static electricity, and the efficiency of collecting the fiber waste in the fiber waste collection container 13 can be prevented from decreasing.

[0072] Furthermore, according to the fiber waste recovery device 1 and fiber waste separator 30 of this embodiment, the tapered portion 36 has an inclined portion 39 whose diameter decreases from the connection portion with the main body portion 35 toward the fiber waste discharge portion 33. Since the fiber waste and the air can be separated at this inclined portion 39, it is possible to further prevent the fiber waste from being discharged to the outside from the air discharge portion 32. Note that the inclined portion 39 is tapered at an angle between the vertical direction and the inclined portion 39 within a range of 7 to 10° (upper and lower limits included), so that the fiber waste and the air can be separated with high precision while preventing the fiber waste discharge portion 33 from being clogged with fiber waste, thereby allowing the fiber waste to be discharged well from the fiber waste discharge portion 33.

[0073] In addition, according to the fiber debris collection device 1 and fiber debris separator 30 of this embodiment, the opening area of ​​the air discharge section 32 along the horizontal direction at the portion communicating with the inside of the main body section 35 is made larger than the opening area of ​​the fiber debris discharge section 33 along the horizontal direction, thereby more effectively preventing fiber debris from being discharged to the outside from the air discharge section 32.

[0074] [Experimental Example] This embodiment is supported by the following experimental examples. The results of these experimental examples will be described. Fig. 8 is an example of a front view of the fiber waste separator 30. Fig. 9 is an example of an experimental result showing the relationship between the taper angle θ, the air flow rate in the air discharge section 32, and the air flow rate in the fiber waste discharge section 33. The fiber used in Experimental Examples 1, 2, and 3 described below is a 75 denier false twist yarn.

[0075] 8 and 9, the up-down direction is the Y direction, and in particular, the up-down direction is the Y direction (positive direction) and the down-down direction is the Y direction (negative direction). The flow rates shown in Fig. 9 represent the flow rates of vector components in the Y direction, and a positive flow rate value indicates that the air flow is in the Y direction (positive direction), and a negative flow rate value indicates that the air flow is in the Y direction (negative direction).

[0076] 8, the dimensions of each part of the fiber waste separator 30 are defined as the Y-direction length a of the entire fiber waste separator 30, the Y-direction length b of the main body 35, the inner diameter c of the main body 35, the Y-direction length d of the air discharge portion 32, the inner diameter e of the air discharge portion 32, the Y-direction length f of the inclined portion 39, the Y-direction length g of the fiber waste discharge portion 33, the inner diameter h of the fiber waste discharge portion 33, and the taper angle θ. In Experimental Example 2 described later, the inner diameter of the inlet of the fiber waste transfer piping 11 at the connection portion with the fiber waste separator 30 is defined as i.

[0077] (Experimental Example 1) In experimental example 1, the dimensions of each part of the fiber waste separator 30 were a = 280 mm, b = 80 mm, c (inner diameter) = 80 mm, d = 50 mm, e (inner diameter) = 48 mm, g = 10 mm, h (inner diameter) = 31 mm, and the taper angle θ was changed to verify the quality of the fiber waste discharged from the fiber waste discharge section 33 (hereinafter referred to as "quality of fiber waste discharge"). The verification was performed with taper angles θ of 10°, 15°, 30°, and 40°. The Y-direction length f of the inclined section 39 is a dimension determined according to the taper angle θ.

[0078] The verification results obtained in Experimental Example 1 are as shown in Table 1. Table 1 is an example of experimental results showing the relationship between the taper angle θ and the quality of fiber waste discharge. It is important that the fiber waste is gathered into balls in order to be discharged well from the fiber waste discharge section 33. The fiber waste that was discharged well from the fiber waste discharge section 33 in the form of balls was judged as OK, the fiber waste that was not discharged from the fiber waste discharge section 33 without being in the form of balls was judged as NG, and the fiber waste that was gathered into balls but the fiber waste discharge section 33 was clogged once in five times was judged as △.

[0079] [Table 1]

[0080] As shown in Table 1, when the taper angle θ exceeded 10°, the fiber waste discharge was rated as NG. When the taper angle θ was 10°, according to Experimental Example 1, fiber waste clogged the fiber waste discharge section 33 one time out of five, resulting in a rating of △, but the fiber waste was discharged from the fiber waste discharge section 33 in a clump-like shape four times out of five, which is considered to be closer to an OK rating. Although not shown in Table 1, when the taper angle θ was less than 10°, the fiber waste discharge was always rated as OK.

[0081] From the above verification results, it is found that the fiber waste discharged from the fiber waste discharge section 33 Lint From the viewpoint of the goodness of the taper angle θ, it has been found that the taper angle θ is preferably 10° or less.

[0082] (Experimental Example 2) In Experimental Example 2, the dimensions of each part of the fiber waste separator 30 were a=300.1mm, b=90mm, c=90mm, d=30mm, e=48mm, f=170.1mm, g=10mm, and i=21mm, and only the taper angle θ was changed to verify the change in the air flow rate in the Y direction at the air discharge section 32 and the air flow rate in the Y direction at the fiber waste discharge section 33. The verification was performed with the taper angles θ of 10°, 9°, 7°, and 5°. The inner diameter h of the fiber waste discharge section 33 is a dimension determined by the taper angle θ. In addition, the air flow rate inside the fiber waste transfer pipe 11 was assumed to be 1000m / min, and the mass flow rate of air at the inlet of the fiber waste transfer pipe 11 was set to 0.014896kg / s.

[0083] According to the verification results obtained in the experimental example 2, assuming that the inner diameter e of the air discharge section 32 and the inner diameter h of the fiber waste discharge section 33 are constant, as shown in FIG. 9, it was found that when the flow rate of the air discharged from the fiber waste discharge section 33 increases, the flow rate of the air discharged from the air discharge section 32 decreases. In addition, the flow rate of the air discharged from the air discharge section 32 decreases as the taper angle θ decreases. On the other hand, the flow rate of the air discharged from the fiber waste discharge section 33 does not decrease but remains flat even if the taper angle θ is reduced beyond the taper angle θ of 7°. However, if the inner diameter e of the air discharge section 32 and the inner diameter h of the fiber waste discharge section 33 are constant and the taper angle θ is reduced, the Y-direction length f of the inclined section 39 increases accordingly. It is considered that when the Y-direction length f of the inclined section 39 increases, the Y-direction length a of the entire fiber waste separator 30 increases, and the pressure loss increases. Therefore, it is considered that if the taper angle is smaller than 7°, the ratio of the flow rate of air discharged from fiber waste discharge section 33 to the flow rate of air discharged from air discharge section 32 will be large. According to the inventor's knowledge, if the ratio of the flow rate of air discharged from fiber waste discharge section 33 to the flow rate of air discharged from air discharge section 32 becomes large, separation of the fiber waste and the air will not be performed well. Therefore, it is preferable that the lower limit of the taper angle θ is 7° or more.

[0084] Taking the verification results of the above-mentioned Experimental Examples 1 and 2 together, it was found that the taper angle θ is preferably within a range of 7° to 10° (including the upper and lower limits).

[0085] (Experimental Example 3) In Experimental Example 3, the relationship between the inner diameter h of the fiber waste discharge section 33 and the ratio of the flow rate of air discharged from the fiber waste discharge section 33 to the flow rate of air discharged from the air discharge section 32 was verified. The role of the air discharge section 32 is to discharge the air after the fiber waste is separated to the outside air, so the inner diameter e of the air discharge section 32 was set constant at, for example, 48 mm. Although the results of the experiment are not shown in the figures, the flow rate (absolute value) of air in the Y direction (negative direction) in the fiber waste discharge section 33 increases as the inner diameter h of the fiber waste discharge section 33 increases, and decreases as the inner diameter h of the fiber waste discharge section 33 decreases. On the other hand, the flow rate (absolute value) of air in the Y direction (positive direction) in the air discharge section 32 tends to decrease as the inner diameter h of the fiber waste discharge section 33 increases, and tends to increase as the inner diameter h of the fiber waste discharge section 33 decreases. As described above, according to the findings of the inventors, it is preferable that the inner diameter h of the fiber waste discharge section 33 is smaller than the inner diameter e of the air discharge section 32. However, it has been found that if the inner diameter h of the fiber waste discharge section 33 is 27 mm or less, it becomes difficult to discharge fiber waste from the fiber waste discharge section 33. When the inner diameter h of the fiber waste discharge section 33 is 27 mm, the ratio of the flow rate of air discharged from the air discharge section 32 to the flow rate of air discharged from the fiber waste discharge section 33 is approximately 7:3. This ratio decreases as the inner diameter h of the fiber waste discharge section 33 increases. For example, within the range of the inner diameter h of the fiber waste discharge section 33 being 27 mm to 35 mm, the ratio of the flow rate of air discharged from the air discharge section 32 to the flow rate of air discharged from the fiber waste discharge section 33 decreases as the inner diameter h of the fiber waste discharge section 33 increases. It was also found that when the inner diameter h of the fiber waste discharge section 33 is 35 mm, the ratio of the flow rate of air discharged from the air discharge section 32 to the flow rate of air discharged from the fiber waste discharge section 33 is approximately 1:1. As described above, when the ratio of the flow rate of air discharged from the fiber waste discharge section 33 to the flow rate of air discharged from the air discharge section 32 becomes large, separation of the fiber waste and the air is not performed well, so it is preferable that the inner diameter h of the fiber waste discharge section 33 is 35 mm or less.

[0086] As described above, the above-mentioned Experimental Examples 1, 2, and 3 were conducted using 75 denier false twist yarn, but the inventors have also conducted similar verifications with other fibers. As a result, for false twist yarn, polyester fiber, and polyamide fiber, by making the inclined portion 39 tapered with an angle between the vertical direction within a range of 7 to 10° (including upper and lower limits), it was possible to accurately separate the fiber waste from the air, and by preventing the fiber waste discharge portion 33 from being clogged with fiber waste, it was possible to satisfactorily discharge the fiber waste from the fiber waste discharge portion 33. In particular, it was confirmed that a remarkable effect was obtained with 75 to 450 denier false twist yarn, 150 denier PET, and nylon.

[0087] [Variations] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible within the scope of the claims. For example, the following modifications may be made.

[0088] In the above embodiment, the conductive portion 34 is provided as a flange-shaped conductive portion configured as a flange portion along the outer periphery of the main body portion 35, but this is not essential. The conductive portion that electrically connects the separation portion 31 to an external conductor may have a form shown in the following first modified example, for example.

[0089] (First Modification) Fig. 10 is a schematic diagram showing a fiber debris collection apparatus 1A according to a first modified example and a fiber debris separator 30 according to the first modified example provided in the fiber debris collection apparatus 1A. Fig. 11 is a perspective view showing the fiber debris separator 30 and the fiber debris collection container 13 of the fiber debris collection apparatus 1A according to the first modified example. Fig. 12(A) is a front view of the fiber debris separator 30 according to the first modified example, and Fig. 12(B) is a cross-sectional view showing a conductive portion (tubular conductive portion) 41 according to the first modified example.

[0090] 10 to 12, in the fiber debris recovery device 1A of the first modified example, in the fiber debris separator 30, in addition to the conductive portion 34 provided as a flange-shaped conductive portion as a conductive portion for electrically connecting the separating portion 31 to an external conductor, a conductive portion 41 provided as a tubular conductive portion is further provided.

[0091] The conductive part 41 is provided as a tubular conductive part configured as a tubular connecting member that connects and connects the main body 35 and the fiber waste transfer pipe 11. The conductive part 41 is provided as a circular tube-shaped member and is made of a rubber material having electrical conductivity. The circular tube-shaped conductive part 41 has both ends open, and the connection port 37a of the cylindrical part 37 of the main body 35 is fitted and connected to one opening, and the end of the fiber waste transfer pipe 11 is fitted and connected to the other opening. The connection port 37a of the cylindrical part 37 is connected to one end of the conductive part 41, and the fiber waste transfer pipe 11 is connected to the other end of the conductive part 41, so that the main body 35 and the fiber waste transfer pipe 11 are connected and connected via the conductive part 41. In addition, the fiber waste transfer pipe 11 is formed of a metal material having electrical conductivity and is a conductor. The separation unit 31 and the fiber waste transfer pipe 11 are electrically connected by coupling and connecting the main body 35 of the separation unit 31 and the fiber waste transfer pipe 11 via the conductive part 41. In this manner, the conductive part 41 provided as a tubular conductive part is configured to electrically connect the separation unit 31 to the fiber waste transfer pipe 11, which is an external conductor.

[0092] According to the fiber waste recovery device 1A of the first modified example described above, the static electricity generated in the separation section 31 can be efficiently discharged from the main body section 35 to the fiber waste transfer piping 11. Furthermore, the conductive section 41 provided as a connecting member connecting the main body section 35 and the fiber waste transfer piping 11 is made of a conductive rubber material, so that it can absorb any misalignment between the main body section 35 and the fiber waste transfer piping 11 and can easily connect the main body section 35 and the fiber waste transfer piping 11.

[0093] In the embodiment shown in the first modified example, the conductive portion 41 provided as a tubular conductive portion is provided together with the conductive portion 34 provided as a flange-shaped conductive portion as a conductive portion for electrically connecting the separation portion 31 to an external conductor, but this is not necessarily the case. A form in which the conductive portion 34 is not provided as a flange-shaped conductive portion and only the conductive portion 41 is provided as a tubular conductive portion may be implemented. Also, a conductive portion other than the flange-shaped conductive portion and the tubular conductive portion may be implemented as a conductive portion for electrically connecting the separation portion 31 to an external conductor. For example, a conductive portion provided as a conductor connected to the separation portion 31 and the support frame 40 may be implemented.

[0094] In the above embodiment, the fiber waste separator 30 corresponding to each fiber waste transfer pipe 11 (11a to 11d) is provided between each of the plurality of fiber waste transfer pipes 11 (11a to 11d) and one fiber waste collection container 13, but this is not essential. For example, the embodiments shown in the second to fifth modified examples described below may be used.

[0095] (Second Modification) Fig. 13 is a schematic diagram showing a fiber waste recovery apparatus 1B according to a second modified example. Referring to Fig. 13, in the second modified example, the fiber waste recovery apparatus 1B includes a plurality of fiber waste recovery containers 13 (13a-13d) and a plurality of fiber waste separators 30 (30a-30d) corresponding to the plurality of fiber waste transfer pipes 11 (11a-11d), respectively.

[0096] In detail, the fiber waste collection container 13 includes a first fiber waste collection container 13a corresponding to the first fiber waste transfer pipe 11a, a second fiber waste collection container 13b corresponding to the second fiber waste transfer pipe 11b, a third fiber waste collection container 13c corresponding to the third fiber waste transfer pipe 11c, and a fourth fiber waste collection container 13d corresponding to the fourth fiber waste transfer pipe 11d. Further, the fiber waste separators 30 (30a to 30d) include a first fiber waste separator 30a provided between the first fiber waste transfer pipe 11a and the first fiber waste collection container 13a, a second fiber waste separator 30b provided between the second fiber waste transfer pipe 11b and the second fiber waste collection container 13b, a third fiber waste separator 30c provided between the third fiber waste transfer pipe 11c and the third fiber waste collection container 13c, and a fourth fiber waste separator 30d provided between the fourth fiber waste transfer pipe 11d and the fourth fiber waste collection container 13d. The first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are all connected to the main body (no reference number) of the fiber waste separator 30 so that their longitudinal directions are aligned with the inner peripheral wall (no reference number) of the main body (no reference number). That is, similar to the fiber waste transport piping 11 (11a to 11d) described with reference to Figure 6, when viewed in a plan view, the first fiber waste transport piping 11a to the fourth fiber waste transport piping 11d are connected to the main body portion so as to run along the tangent to the cylindrical portion of the main body portion of the fiber waste separator 30 (30a to 30d).

[0097] Even in the configuration shown in the second modified example, fiber debris can be effectively separated from the air, and the fiber debris can be effectively discharged from the fiber debris discharge section 33 (see Figure 5), while the air from which the fiber debris has been separated can be effectively discharged from the air discharge section 32 (see Figure 5).

[0098] (Third Modification) Fig. 14 is a schematic diagram showing a fiber waste recovery apparatus 1C according to a third modified example. Referring to Fig. 14, in the third modified example, the fiber waste recovery apparatus 1C includes a plurality of fiber waste transfer pipes 11 (11a to 11d), one fiber waste recovery container 13, and one fiber waste separator 30.

[0099] The fiber waste separator 30 is provided between a plurality of fiber waste transfer pipes 11 (11a to 11d) and a fiber waste collection container 13. The plurality of fiber waste transfer pipes 11 (11a to 11d) join together upstream of the fiber waste separator 30, and are connected to the main body 35 such that the longitudinal direction of the joined pipe is along the inner peripheral wall (no reference number) of the main body 35 of the fiber waste separator 30. That is, similar to the fiber waste transfer pipe 11 described with reference to FIG. 6, it is preferable that the joined pipe (no reference number) is connected to the main body 35 such that it is along the tangent line of the cylindrical portion 37 of the main body 35 of the fiber waste separator 30 in plan view.

[0100] Even in the configuration shown in the third modified example, fiber debris can be effectively separated from the air, and the fiber debris can be effectively discharged from the fiber debris discharge section 33, while the air from which the fiber debris has been separated can be effectively discharged from the air discharge section 32.

[0101] In the third modified embodiment, all of the multiple fiber waste transfer pipes 11 (11a to 11d) join together upstream of one fiber waste separator 30, but instead, multiple fiber waste separators 30 may be provided and two or more of the multiple fiber waste transfer pipes 11 (11a to 11d) may join together upstream of the fiber waste separator 30. For example, two fiber waste transfer pipes may join together upstream of one fiber waste separator and be connected to one fiber waste separator in the joined state, while the other two fiber waste transfer pipes may join together upstream of another fiber waste separator and be connected to the other fiber waste separator in the joined state.

[0102] (Fourth Modification) 15 is a plan view of a fiber waste separator 30 according to a fourth modified example. The fiber waste recovery device (no reference number) of the fourth modified example includes a plurality of fiber waste transfer pipes 11 (11a-11d), one fiber waste recovery container (no reference number), and one fiber waste separator 30, similar to the fiber waste recovery device 1C of the third modified example. Note that in the third modified example, the plurality of fiber waste transfer pipes 11 (11a-11d) join together upstream of the fiber waste separator 30, but in the fourth modified example, instead, a plurality of fiber waste transfer pipes 11 (11a-11d) are connected to one fiber waste separator 30.

[0103] In detail, referring to Fig. 15, in the fourth modified embodiment, the first fiber waste transfer pipe 11a, the second fiber waste transfer pipe 11b, the third fiber waste transfer pipe 11c, and the fourth fiber waste transfer pipe 11d are connected to the main body 35 of one fiber waste separator 30 at positions shifted in the circumferential direction. The first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are all connected to the main body 35 so that their longitudinal directions run along the inner peripheral wall 37b of the main body 35 of the fiber waste separator 30. That is, similar to the fiber waste transfer pipe 11 described with reference to Fig. 6, the first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are connected to the main body 35 so that they run along the tangent line of the cylindrical portion 37 of the main body 35 of the fiber waste separator 30 in a plan view. Even in the configuration shown in the fourth modified example, fiber debris can be effectively separated from the air, and the fiber debris can be effectively discharged from the fiber debris discharge section 33, while the air from which the fiber debris has been separated can be effectively discharged from the air discharge section 32.

[0104] 15 are preferably connected to the upper portion of the main body 35. However, it is not essential that all of the first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are at the same position in the vertical direction, and some or all of the first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d may be connected shifted in the vertical direction.

[0105] (Fifth Modification) 16 is a perspective view of a fiber debris separator 30 according to a fifth modified example. The fiber debris collection apparatus (no reference number) of the fifth modified example includes a plurality of fiber debris transfer pipes 11 (11a to 11d), one fiber debris collection container (no reference number), and one fiber debris separator 30, similar to the fiber debris collection apparatus 1C of the third modified example.

[0106] 16, in the fifth modified embodiment, the first fiber waste transfer pipe 11a, the second fiber waste transfer pipe 11b, the third fiber waste transfer pipe 11c, and the fourth fiber waste transfer pipe 11d are connected to the main body 35 of one fiber waste separator 30 at positions shifted in the up-down direction. The first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are all connected to the main body 35 so that their longitudinal directions run along the inner peripheral wall 37b of the main body 35 of the fiber waste separator 30. That is, similar to the fiber waste transfer pipe 11 described with reference to FIG. 6, the first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d are connected to the main body 35 so that they run along the tangent line of the cylindrical portion 37 of the main body 35 of the fiber waste separator 30 in a plan view. Even in the configuration shown in the fifth modified example, fiber debris can be effectively separated from the air, and the fiber debris can be effectively discharged from the fiber debris discharge section 33, while the air from which the fiber debris has been separated can be effectively discharged from the air discharge section 32.

[0107] 16 are connected to the main body 35 at the same circumferential position of the main body 35, although they are offset from one another in the vertical direction, but this is not essential. For example, at least one or all of the first fiber waste transfer pipe 11a to the fourth fiber waste transfer pipe 11d may be connected to the main body 35 at positions offset from one another in the circumferential direction of the main body 35.

[0108] (Other variations) In the above embodiment, the fiber waste collecting apparatus 1 is installed in the false twisting machine 101, but this is not necessarily the case. The fiber waste collecting apparatus 1 may be installed in a textile machine other than the false twisting machine 101. For example, the fiber waste collecting apparatus 1 may be installed in a spinning machine.

[0109] In the above embodiment, an example has been described in which the winding devices 107 are installed in the false twisting machine 101 arranged in four stages in the vertical direction, but this is not essential. A form in which the winding devices 107 are installed in the false twisting machine 101 arranged in three or less stages or five or more stages in the vertical direction may also be implemented. In this case, the number of fiber waste transport pipes 11 may correspond to the number of stages of the winding devices 107 arranged in the vertical direction.

[0110] In the above embodiment, a configuration in which a plurality of fiber waste transport pipes 11 are provided has been described as an example, but this is not necessarily the case. A configuration in which only one fiber waste transport pipe 11 is provided may also be implemented. [Explanation of symbols]

[0111] 1. Fiber waste collection device 11 Fiber waste transport piping 13 Fiber waste collection container (fiber waste collection section) 15 Suction section 30 Textile waste separator 31 Separation section 32 Air exhaust section 33 Fiber waste discharge section 34 Conductive part 35 Main body 36 Tapered section (fiber waste transport section) 39 Slope 101 False twisting machine Y Fiber

Claims

1. A fiber waste transfer pipe that transports fiber waste together with air, A fiber waste collection unit for collecting the fiber waste that has been transported inside the fiber waste transport pipe, A fiber waste separator is provided between the fiber waste transfer piping and the fiber waste collection section, which separates the fiber waste that has been transferred through the fiber waste transfer piping from the air and collects the separated fiber waste in the fiber waste collection section. Equipped with, The aforementioned fiber waste separator is, A separation unit connected to the aforementioned fiber waste transfer pipe, which separates the fiber waste from the air, An air discharge unit connected to the separation unit for discharging the air after the fiber debris has been separated, A fiber waste discharge unit discharges the fiber waste separated from the air in the separation unit and collects it in the fiber waste collection unit, Includes, The separation portion is further provided with a conductive portion for electrically connecting it to an external conductor, The aforementioned separation unit is The cylindrical main body to which the fiber waste transfer piping is connected, It has a fiber waste transfer section provided below the main body and continuous with the fiber waste discharge section, The fiber waste transfer section is configured to have an inclined section whose diameter decreases from the connection section with the main body towards the fiber waste discharge section. The separation section is made of a conductive resin material, and the fiber waste collection device is provided.

2. The conductive portion is provided as a flange-shaped conductive portion, which is configured as a flange portion along the outer circumference of the main body. The fiber waste collection device according to claim 1.

3. The conductive part is provided as a tubular conductive part configured as a tubular connecting member that connects the main body and the fiber waste transfer piping. The tubular conductive part is made of a conductive rubber material. The fiber waste collection device according to claim 1.

4. The conductive part is provided as a tubular conductive part configured as a tubular connecting member that connects the main body and the fiber waste transfer piping, The tubular conductive part is made of a conductive rubber material. The fiber waste collection device according to claim 2.

5. The air discharge section is, The lower end of the air discharge section is positioned above the fiber waste transfer piping. The fiber waste collection device according to claim 1.

6. The air discharge section is, The lower end of the air discharge section is positioned above the fiber waste transfer piping. The fiber waste collection device according to claim 2.

7. The air discharge section is The lower end of the air discharge section is positioned above the fiber waste transfer piping. The fiber waste collection device according to claim 3.

8. The air discharge section is, The lower end of the air discharge section is positioned above the fiber waste transfer piping. The fiber waste collection device according to claim 4.

9. The fiber waste transfer piping is provided in multiple locations, The fiber waste separator is provided one for each of the multiple fiber waste transfer pipes. A fiber waste collection device according to any one of claims 1 to 8.

10. The fiber waste transfer piping is provided in multiple locations, The fiber waste collection unit is provided in fewer numbers than the number of fiber waste transfer pipes. A fiber waste collection device according to any one of claims 1 to 8.

11. The fiber waste transfer piping is provided in multiple locations, The fiber waste collection unit is provided in fewer numbers than the number of fiber waste transfer pipes. The fiber waste collection device according to claim 9.

12. A false twisting machine equipped with a fiber waste recovery device according to any one of claims 1 to 8.

13. A false twisting machine equipped with the fiber waste recovery device described in Claim 9.

14. A false twisting machine equipped with the fiber waste recovery device described in Claim 10.

15. A false twisting machine equipped with the fiber waste recovery device described in Claim 11.

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