Entangling device and spun yarn taking-up apparatus

Abstract

To provide an entangling device capable of reducing variation among a plurality of yarns of entanglement applied thereto.SOLUTION: An entangling device 5 has a housing 30 and a nozzle unit 40. An air flow path 31 is formed in the housing 30. The nozzle unit 40 injects air from a plurality of nozzle members 42 respectively to apply entanglement to a plurality of yarns. The air flow path 31 has a first flow path 32 and a second flow path 33. The first flow path 32 extends in a first direction. The second flow path 33 is connected to the first flow path 32 and extends in a second direction intersecting with the first direction toward introduction ports 44 of the nozzle members 42. A regulation member 60 for regulating a portion of air flowing in the first flow path 32 is disposed in a range A1 on the most upstream side of an area, when a range of the nozzle members 42 aligned on the first flow path 32 is trisected in the first direction. The regulation member 60 covers half or more of flow path cross section area of the first flow path 32.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention mainly relates to an interlacing device for interlacing a plurality of yarns. [Background technology]

[0002] Patent Document 1 discloses an intertwining device provided in a spinning take-up device. The intertwining device includes a base body and a plurality of intertwining pieces. The base body is formed with a fluid passage through which a fluid supplied from a fluid supply source flows. The plurality of intertwining pieces are arranged in a line along the fluid passage. Each of the plurality of intertwining pieces is formed with a fluid supply hole and a fluid injection hole. The fluid flowing through the fluid passage flows into the fluid supply hole and is injected from the fluid injection hole into a yarn traveling space. This imparts entanglement to the yarn traveling in the yarn traveling space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-35169 Summary of the Invention [Problem to be solved by the invention]

[0004] In the entanglement device of Patent Document 1, multiple entanglement pieces are arranged in a direction along the fluid passage. Therefore, depending on the fluid flow in the fluid passage, there is a possibility that the fluid flow rate may vary between the fluid supply holes of the multiple entanglement pieces. As a result, the flow rate of the injected fluid varies between the multiple yarns, which results in variation in the entanglement imparted to the yarns. Due to the above circumstances, there has been a demand for an entanglement device that can reduce variation in the entanglement between the multiple yarns.

[0005] The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide an interlacing device that can reduce variations in the interlacing of a plurality of yarns.

[0006] The problem to be solved by the present invention is as described above. Next, the means for solving this problem and the effects thereof will be explained.

[0007] According to a first aspect of the present invention, there is provided an intertwining device having the following configuration. Specifically, the intertwining device includes a housing and a nozzle unit. An air flow path is formed in the housing. The nozzle unit has a plurality of nozzle members aligned in a first direction, and air supplied to an inlet of the nozzle member via the air flow path is sprayed from each of the nozzle members onto a plurality of yarns aligned in the first direction, thereby entangling the plurality of yarns. The air flow path includes a first flow path and a second flow path. The first flow path extends in the first direction. The second flow path is connected to the first flow path, extends in a second direction intersecting the first direction, and is a flow path toward the inlet of the nozzle member. A restricting member is disposed in the first flow path upstream of the center of the range in the first direction of the aligned nozzle members, for restricting a portion of the flow of air flowing through the first flow path. The restricting member covers more than half of the cross-sectional area of the first flow path.

[0008] As a result, part of the air flow is first restricted by the restricting member and then directed toward the inlet of the nozzle member. In particular, because the restricting member, which is located relatively upstream of the first flow path, covers more than half of the cross-sectional area of the flow path, most of the inflowing air is received by the restricting member and then directed toward the second flow path. As a result, the flow velocity of the air flowing through the first flow path is less likely to affect the flow velocity of the air flowing through the second flow path, thereby reducing variation in the flow velocity of the air flowing through the second flow path. This reduces variation in the entanglement imparted to multiple yarns.

[0009] In the intertwining device, when viewed in a direction perpendicular to the first direction and the second direction, it is preferable that the regulating member extends from the end of the first flow path on the second flow path side, beyond the center of the first flow path in the second direction, toward the end on the opposite side of the second flow path.

[0010] As a result, the air flowing through the first flow path is easily able to flow into the second flow path after being received by the restricting member.

[0011] In the intertwining device, it is preferable that the regulating member is disposed in the most upstream range of three equal parts in the first direction that are obtained by dividing the range of the first flow path in which the nozzle members are arranged.

[0012] This allows the air that has flowed in to be received further upstream of the first flow path, thereby further reducing variations in the flow velocity of the air flowing through the second flow path.

[0013] In the intertwining device, when viewed in a direction perpendicular to the first direction and the second direction, it is preferable that the regulating member extends from the end of the first flow path on the second flow path side to the range farthest from the second flow path among the three equal parts of the first flow path divided in the second direction.

[0014] This positions the restriction member in a range including the center of the first flow path in the second direction and its vicinity, making it easier for the restriction member to catch the air flowing through the first flow path.

[0015] The interlacing device preferably has the following configuration: the regulating member has a regulating surface and a first positioning portion. The regulating surface regulates a portion of the air flowing through the first flow path. The first positioning portion contacts an inner wall surface of the second flow path to suppress change in the position of the regulating member in the first direction within the housing.

[0016] This makes it possible to regulate the air flow and determine the position in the first direction using a single regulating member.

[0017] The intertwining device is preferably configured as follows: the housing has an opening at a position corresponding to the downstream end of the second flow path in the air flow direction, and the size of the restricting member is within the range of the size of the opening in the housing.

[0018] This allows the restricting member to be inserted and positioned through the opening in the housing.

[0019] In the interlacing device, it is preferable that the restricting member has a hook portion formed thereon for hooking a tool when removing the restricting member from the housing.

[0020] This makes it easier to remove the restricting member from inside the housing.

[0021] In the intertwining device, it is preferable that, when viewed in the first direction, the inner wall surface of the first flow path includes an arc, and the restricting member includes a rectangle.

[0022] Because the contours of a circular arc and a rectangle do not completely match, a gap exists between the first flow path and the restricting member, allowing the air caught by the restricting member to flow through this gap toward the second flow path.

[0023] In the intertwining device, it is preferable that a part of the regulating member is in contact with an inner wall surface of the first flow path, and that the inner wall surface of the first flow path supports the regulating member.

[0024] This eliminates the need for or simplifies the structure for holding the restricting member.

[0025] The intertwining device is preferably configured as follows: the regulating member includes a second positioning portion, and contact of the second positioning portion with the nozzle unit suppresses change in the position of the regulating member in the second direction within the housing.

[0026] This allows the restriction member to be positioned in the second direction.

[0027] The intertwining device preferably has the following configuration: the regulating member includes a third positioning portion. A direction perpendicular to the first direction and the second direction is referred to as a third direction. The third positioning portion contacts an inner wall surface of the second flow path, thereby suppressing change in the position of the regulating member in the housing in the third direction.

[0028] This allows the restriction member to be positioned in the third direction.

[0029] According to a second aspect of the present invention, there is provided a yarn take-up machine including the intertwining device and a yarn winding machine, which winds the plurality of yarns that have been entangled by the intertwining device to simultaneously form a plurality of packages. [Brief explanation of the drawings]

[0030] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. 10 is a perspective view showing a state in which the restricting member is being inserted into the housing. [Figure 4] FIG. 10 is a perspective view showing a state in which the nozzle unit is attached to the housing. [Figure 5] AA cross section of the interlacing device. [Figure 6] BB cross-sectional view of the interlacing device. DETAILED DESCRIPTION OF THE INVENTION

[0031] Next, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a side view of a yarn take-up machine 1.

[0032] The yarn take-up machine 1 shown in FIG. 1 includes a spinning device 2 and a yarn winding machine 9. The spinning device 2 includes a spinneret 2a. A molten fiber material such as nylon or polyester is supplied to the spinning device 2 from a raw material supply device (not shown). The spinning device 2 extrudes the molten fiber material at a high temperature from the spinneret 2a. As a result, multiple yarns 93 are spun from the spinneret 2a. The yarn winding machine 9 winds the yarns 93 spun by the spinning device 2 to produce a package 20. The yarns 93 are synthetic yarns such as nylon or polyester. The yarns 93 are not staple fiber yarns such as spun yarns, but long fiber yarns (filament yarns).

[0033] In the yarn running direction, between the spinning device 2 and the yarn winding machine 9, an oil supply guide 3, a drawing device 4, an entangling device 5, a first godet roller 7, and a second godet roller 8 are arranged in this order from upstream in the yarn running direction.

[0034] The oil supply guide 3 applies oil to the multiple yarns 93 while individually guiding the multiple yarns 93 spun from the spinning device 2. The drawing device 4 has multiple drawing rollers (not shown). The yarn 93 is sandwiched between opposing drawing rollers and stretched by rotating the drawing rollers. The entanglement device 5 entangles each of the multiple yarns 93. The detailed configuration of the entanglement device 5 will be described later.

[0035] The first godet roller 7 and the second godet roller 8 are driven by a motor (not shown). The first godet roller 7 and the second godet roller 8 are capable of winding the yarn 93 around them and rotating, thereby picking up the yarn 93. The first godet roller 7 picks up the yarn 93 from the interlacing device 5. The second godet roller 8 picks up the yarn 93 from the first godet roller 7. The yarn 93 that has passed through the second godet roller 8 is supplied to the yarn winding machine 9.

[0036] In this embodiment, the entangling device 5 is disposed upstream of the first godet roller 7 in the yarn running direction, but the entangling device 5 may be disposed downstream of the first godet roller 7 in the yarn running direction and upstream of the second godet roller 8 in the yarn running direction. Alternatively, one entangling device 5 may be disposed upstream and one downstream of the first godet roller 7.

[0037] As shown in FIG. 1, the yarn winding machine 9 includes a plurality of fulcrum guides 11, a plurality of traverse guides 12, and a turret plate 13.

[0038] A fulcrum guide 11 is provided for each of the plurality of yarns 93. One fulcrum guide 11 guides one yarn 93. The fulcrum guide 11 regulates the movement of the yarn 93 in the axial direction of the package 20 (in other words, the traverse direction). A traverse guide 12 is provided for each of the plurality of yarns 93. One traverse guide 12 engages with one yarn 93. The traverse guide 12 is driven by a traverse motor (not shown) to reciprocate in the axial direction of the package 20. As a result, the yarn 93 is traversed by the traverse guide 12, with the fulcrum guide 11 as a fulcrum.

[0039] The turret plate 13 is a disk-shaped member rotatably attached to the frame of the yarn winding machine 9. The axial direction of the turret plate 13 and the axial direction of the package 20 are parallel. The turret plate 13 is rotatable around a rotation axis that is a normal line passing through the center of the disk. A first bobbin holder 14 and a second bobbin holder 15 are provided on the turret plate 13 at two locations facing each other across the center of the disk. A plurality of bobbins can be attached to the first bobbin holder 14, lined up in the axial direction of the first bobbin holder 14. A plurality of bobbins can be attached to the second bobbin holder 15, lined up in the axial direction of the second bobbin holder 15.

[0040] The positions of the first bobbin holder 14 and the second bobbin holder 15 can be changed by rotating the turret plate 13. The traversed yarn 93 is wound onto the bobbins attached to the upper one of the first bobbin holder 14 and the second bobbin holder 15, thereby producing the package 20.

[0041] Next, the interlacing device 5 will be described with reference to Fig. 2 to Fig. 6. Fig. 2 is a perspective view of the interlacing device 5. Figs. 3 and 4 are assembly views (exploded perspective views) of the interlacing device 5. Figs. 5 and 6 are cross-sectional views of the interlacing device 5.

[0042] The entangling device 5 entangles each of the multiple yarns 93 by spraying air (more specifically, compressed air) onto each of the yarns 93. Entangling means intertwining elements of the yarns 93 (e.g., filaments) with each other. Entangling improves the unwinding properties of the yarns 93, for example. As shown in FIGS. 2 to 4, the entangling device 5 includes, as main components, a housing 30, a nozzle unit 40, and a restricting member 60.

[0043] An inlet pipe 51 is connected to the housing 30. The inlet pipe 51 is connected to a blower or the like outside the interlacing device 5. Air is supplied to the interlacing device 5 through the inlet pipe 51. As shown in FIG. 5, the air supplied through the inlet pipe 51 flows through the air flow path 31 shown in FIG. 5 and is supplied to the nozzle unit 40.

[0044] The air flow path 31 has a first flow path 32 extending in a first direction and a second flow path 33 extending in a second direction. In the following description, the first direction refers to the direction in which the yarns 93 are arranged, the direction in which nozzle members 42 (described later) are arranged, and the direction in which air flows immediately after being supplied from the introduction pipe 51 to the air flow path 31. The first flow path 32 extending in the first direction means that the first flow path 32 is formed from the upstream end of the first flow path 32 in the flow direction in a manner parallel or substantially parallel to the first direction. The second direction refers to a direction intersecting the first direction (a direction perpendicular to the first direction in this embodiment). The second direction refers to a direction from the first flow path 32 toward the nozzle unit 40. The second flow path 33 extending in the second direction means that the second flow path 33 is formed from the upstream end of the second flow path 33 in the flow direction in a manner parallel or substantially parallel to the second direction. The third direction refers to a direction perpendicular to the first and second directions.

[0045] As shown in FIG. 5, the first flow path 32 has a straight flow path 32a and a curved flow path 32b.

[0046] The straight flow path 32a is a flow path located upstream of the curved flow path 32b in the flow direction. The straight flow path 32a is connected to the inlet pipe 51. The straight flow path 32a is a flow path in which air flows linearly from upstream (the inlet pipe 51 side) to downstream (the curved flow path 32b side). The cross section of the straight flow path 32a is circular, and is covered with a circular inner wall surface.

[0047] The curved flow path 32b is a flow path located downstream of the straight flow path 32a in the flow direction and upstream of the second flow path 33 in the flow direction. In other words, the curved flow path 32b is a flow path that connects the straight flow path 32a and the second flow path 33. Here, the flow direction of the straight flow path 32a is a first direction, and the flow direction of the second flow path 33 is a second direction. Therefore, in the curved flow path 32b, the flow direction changes from the first direction to the second direction. In addition, the flow path cross section of the curved flow path 32b is circular and is covered by an arc-shaped inner wall surface. The flow path cross section of the curved flow path 32b is perpendicular to the first direction. In addition, a portion of the curved flow path 32b (more specifically, the side closer to the nozzle unit 40 in the second direction) is open. The open portion of the curved flow path 32b is connected to the second flow path 33.

[0048] 3, an opening 34 is formed on one side of the housing 30 in the second direction. The opening 34 is connected to the second flow path 33. As will be described later, a restricting member 60 is disposed inside the housing 30 via the opening 34. An edge 35 of the opening 34 has a stepped shape, and the nozzle unit 40 is disposed using this stepped shape.

[0049] As shown in FIGS. 4 and 5, the nozzle unit 40 has a base portion 41 and a plurality of nozzle members 42.

[0050] The base portion 41 is connected to the plurality of nozzle members 42. By having the base portion 41, the plurality of nozzle members 42 can be handled together. Furthermore, the base portion 41 has a shape and size that correspond to the edge portion 35 described above, and by placing the base portion 41 on the edge portion 35, the nozzle unit 40 can be positioned relative to the housing 30. The housing 30 and the nozzle unit 40 are fixed by a fixing structure not shown.

[0051] The nozzle members 42 are arranged side by side in the first direction. Each nozzle member 42 has a yarn passage 43 formed therein for passing one yarn 93 therethrough. Each nozzle member 42 also has an inlet 44 and an outlet 45 formed therein. Air is introduced into the inlet 44 via the second flow path 33. The air introduced into the inlet 44 is then injected from the outlet 45 toward the yarn 93 passing through the yarn passage 43. In this way, one nozzle member 42 entangles one yarn 93 passing through the yarn passage 43.

[0052] The housing 30 is further equipped with an upstream guide 52 and a downstream guide 53. The upstream guide 52 is disposed upstream of the nozzle unit 40 in the yarn running direction. The upstream guide 52 guides the plurality of yarns 93 individually. The downstream guide 53 is disposed downstream of the nozzle unit 40 in the yarn running direction. The downstream guide 53 guides the plurality of yarns 93 individually. The upstream guide 52 and the downstream guide 53 may be disposed in locations different from the entangling device 5.

[0053] Here, in order to reduce variations in the entanglement imparted to the plurality of yarns 93, it is necessary to reduce variations in the flow velocity of the air introduced into the nozzle member 42 (in other words, the flow velocity of the air flowing through the second flow path 33). However, in this embodiment, the flow directions of the first flow path 32 and the second flow path 33 are different, so variations in the flow velocity are likely to occur. For example, the air flowing through the first flow path 32 has a component that flows downstream of the first flow path 32, so it is difficult for the air to flow to the nozzle member 42 on the upstream side of the first flow path 32 (the side closer to the introduction pipe 51 and the direct flow path 32a) among the plurality of nozzle members 42. As a result, the flow velocity of the air supplied to the nozzle member 42 on the upstream side in the first direction tends to be slower than the flow velocity of the air supplied to the nozzle member 42 on the downstream side in the first direction.

[0054] In this regard, in this embodiment, a regulating member 60 is disposed in the air flow path 31. The regulating member 60 reduces the variation in flow velocity described above by regulating the flow of air in the air flow path 31 (details will be described later). The regulating member 60 is manufactured by punching and bending a plate material. Because the regulating member 60 is manufactured using a single plate material as a base, manufacturing costs can be reduced.

[0055] First, the shape of the regulating member 60 will be described. As shown in FIG. 3, the regulating member 60 has one first plate portion 60a, two second plate portions 60b, and two third plate portions 60c. A plate portion is a planar portion formed by bending a plate material. One second plate portion 60b is connected to one end of the first plate portion 60a, and the other second plate portion 60b is connected to the other end of the first plate portion 60a. The first plate portion 60a and the second plate portion 60b are orthogonal to each other. However, the first plate portion 60a and the second plate portion 60b do not have to be orthogonal to each other. A third plate portion 60c is connected to one end of each of the two second plate portions 60b. More specifically, the third plate portion 60c is connected to only a portion of the second plate portion 60b in the width direction. The second plate portion 60b and the third plate portion 60c are also orthogonal to each other. However, the second plate portion 60b and the third plate portion 60c do not have to be perpendicular to each other.

[0056] Next, the function of the regulating member 60 will be described. As shown in Fig. 3, the regulating member 60 has a first positioning portion 61, a second positioning portion 62, a third positioning portion 63, a regulating surface 64, and a hook portion 65. In this specification, positioning means fixing the position of each member at a predetermined position, or restricting (regulating) the position of each member so that it does not deviate from an appropriate range.

[0057] 3, the restricting member 60 is inserted into the opening 34 of the housing 30. Therefore, the size of the restricting member 60 falls within the size range of the opening 34. In other words, by aligning the restricting member 60 in a predetermined direction, the restricting member 60 can pass through the opening 34. In particular, in this embodiment, when viewed in the mounting direction of the restricting member 60 (third direction), the opening 34 is larger than the restricting member 60.

[0058] The restricting member 60 of this embodiment is not engaged with the housing 30. In other words, the restricting member 60 is placed inside the housing 30, and after the restricting member 60 is supported on the inner wall surface of the housing 30, the nozzle unit 40 is attached as shown in Fig. 4. As a result, the first positioning portion 61, the second positioning portion 62, and the third positioning portion 63 function as described below, and the restricting member 60 is positioned in the housing 30.

[0059] The first positioning portion 61 is a portion for positioning the regulating member 60 in the first direction. The first positioning portion 61 is the tip of the third plate portion 60c. As shown in FIG. 5, the first positioning portion 61 faces the inner wall surface of the second flow path 33. In this specification, "facing" does not mean contact or non-contact. Even if the regulating member 60 receives a force in the first direction, the first positioning portion 61 comes into contact with the inner wall surface of the second flow path 33, thereby suppressing movement of the regulating member 60 in the first direction. In particular, in this embodiment, there are two third plate portions 60c, and therefore there are two first positioning portions 61. One first positioning portion 61 positions one side in the first direction. The other first positioning portion 61 positions the other side in the first direction.

[0060] The second positioning portion 62 is a portion for positioning the regulating member 60 in the second direction. The second positioning portion 62 is the tip of the second plate portion 60b. More specifically, it is a portion of the end of the second plate portion 60b that is not bent to form the third plate portion 60c. As shown in FIG. 5 , the second positioning portion 62 faces a surface of the nozzle unit 40 (more specifically, the bottom surface of the base portion 41). Even if the regulating member 60 receives a force in the second direction, contact between the second positioning portion 62 and the nozzle unit 40 suppresses movement of the regulating member 60 in the second direction. Note that the other side of the second direction of the regulating member 60 is positioned by the first plate portion 60a being supported by the inner wall surface of the first flow path 32.

[0061] The third positioning portions 63 are portions for positioning the regulating member 60 in the third direction. The third positioning portions 63 are at both ends of the second plate portion 60b in the width direction. As shown in FIG. 6 , the third positioning portions 63 face the inner wall surface of the second flow path 33. Even if the regulating member 60 receives a force in the third direction, the third positioning portions 63 come into contact with the inner wall surface of the second flow path 33, thereby suppressing movement of the regulating member 60 in the third direction.

[0062] The restricting member 60 of this embodiment is formed by simply punching and bending a single plate material to form the first positioning portion 61, the second positioning portion 62, and the third positioning portion 63. This reduces the manufacturing cost of the restricting member 60 and enables positioning in three directions.

[0063] The restriction surface 64 is a portion for restricting a portion of the flow of air flowing through the first flow path 32. The restriction surface 64 is a surface of the second positioning portion 62 facing the inlet pipe 51 (in other words, upstream). As shown in FIG. 5 , the restriction surface 64 is disposed in the curved flow path 32b. Specifically, the restriction surface 64 is disposed in a position upstream of the first flow path 32 (closer to the inlet pipe 51) from the center C1 of the range in which the nozzle member 42 exists in the first direction. More specifically, the restriction surface 64 is disposed in the range A1 on the most upstream side (closest to the inlet pipe 51) of three ranges obtained by equally dividing the range in which the nozzle member 42 exists in the first flow path 32 into three. Furthermore, the restriction surface 64 extends in the second direction from the end of the first flow path 32 on the second flow path 33 side, beyond the center C2 in the second direction, toward the end on the opposite side of the second flow path 33. More specifically, the restriction surface 64 extends beyond the central position C2 to a range A2 obtained by dividing the first flow path 32 into three equal parts in the second direction, the range A2 being the farthest from the second flow path 33. Also, as shown in Fig. 6, the restriction surface 64 covers more than half of the flow path cross-sectional area of the first flow path 32 (specifically, the curved flow path 32b).

[0064] With the above configuration, the regulating surface 64 covers a wide area of the first flow path 32, relatively upstream of the first flow path 32. This allows most of the incoming air to be received by the regulating surface 64. Therefore, the flow in the first direction caused by the first flow path 32 can be counteracted. As shown in FIG. 6 , the regulating surface 64 is rectangular when viewed in the first direction, and the curved flow path 32b has an inner wall surface that includes an arc. Therefore, a gap exists between the regulating surface 64 and the inner wall surface of the curved flow path 32b. Therefore, the air received by the regulating surface 64 flows mainly to the second flow path 33 through this gap. By receiving the air, the flow velocity of the air flowing through the first flow path 32 is less likely to affect the flow velocity of the air flowing through the second flow path 33. As a result, variation in the flow velocity of the air flowing through the second flow path 33 can be reduced. Therefore, variation in the entanglement imparted to the plurality of yarns 93 can be reduced.

[0065] That is, in this embodiment, most of the air flowing through the first flow path 32 is once restricted by the restriction surface 64, and the flow velocity in the first direction is reset. The air restricted by the restriction surface 64 flows toward the nozzle unit 40 due to a diffusion effect or the like. In other words, the restriction surface 64 only restricts the flow of air, and the flow velocity is naturally equalized by the air flow. As a result, compared to a configuration in which a large number of rectification members are arranged to equalize the flow velocity, the configuration of this embodiment does not require or makes it easy to adjust the number, size, and layout of the restriction members, and can achieve the same function as that of Patent Document 1 with a relatively simple structure.

[0066] The hook portion 65 is a hole formed perpendicular to the first plate portion 60a. When removing the restricting member 60 from the housing 30, the restricting member 60 can be easily removed by hooking a tool onto the hook portion 65. Note that the hook portion 65 is not limited to a hole formed perpendicular to the first plate portion 60a, and may be a ring-shaped member or a protrusion-shaped member connected to the first plate portion 60a. Furthermore, the hook portion 65 may be formed in a portion other than the first plate portion 60a.

[0067] The purpose of arranging the regulating member 60 in this embodiment is to regulate a portion of the air flowing through the first flow path 32. As long as this purpose is achieved, the shape or configuration of the regulating member 60 can be modified as appropriate. For example, since the main purpose of the regulating member 60 is achieved as long as the regulating surface 64 is present, at least one of the positioning portions or the hook portion 65 of the regulating member 60 may be omitted. In this case, an engagement structure for fixing the regulating member 60 to the housing 30 may be provided. Furthermore, the regulating member 60 is not limited to a configuration manufactured by processing a plate material. In other words, the regulating member 60 is not limited to a plate-like shape, but may also be a block-like shape. Therefore, the regulating member 60 may be manufactured by connecting two or more members with a fastener or the like.

[0068] Furthermore, as long as there is a gap between the restriction surface 64 and the inner wall surface of the curved flow path 32b, the shapes of the restriction surface 64 and the curved flow path 32b when viewed in the first direction can be changed. For example, the restriction surface 64 may not be rectangular, but may have a curved outline. Furthermore, the flow path cross section of the curved flow path 32b may be rectangular.

[0069] As described above, the entangling device 5 of this embodiment includes a housing 30 and a nozzle unit 40. The housing 30 has an air flow path 31 formed therein. The nozzle unit 40 has a plurality of nozzle members 42 aligned in a first direction, and air supplied to the inlet 44 of the nozzle member 42 via the air flow path 31 is sprayed from each of the nozzle members 42 toward a plurality of yarns 93 aligned in the first direction, thereby entangling the yarns 93. The air flow path 31 has a first flow path 32 and a second flow path 33. The first flow path 32 extends in the first direction. The second flow path 33 is connected to the first flow path 32 and extends in a second direction intersecting the first direction toward the inlet 44 of the nozzle member 42. A regulating member 60 that regulates a portion of the air flowing through the first flow path 32 is arranged upstream of the center C1 in the first direction of the range in which the nozzle members 42 are arranged in the first flow path 32, and the regulating member 60 covers more than half of the flow path cross-sectional area of the first flow path 32.

[0070] As a result, part of the air flow is once restricted by the restricting member 60, and then heads toward the inlet 44 of the nozzle member 42. In particular, because the restricting member 60, which is located relatively upstream of the first flow path 32, covers more than half of the cross-sectional area of the flow path, most of the inflowing air is received by the restricting member 60 and then heads toward the second flow path 33. As a result, the flow velocity of the air flowing through the first flow path 32 is less likely to affect the flow velocity of the air flowing through the second flow path 33, and therefore variation in the flow velocity of the air flowing through the second flow path 33 can be reduced. Therefore, variation in the entanglement imparted to the plurality of yarns 93 can be reduced.

[0071] In the interlacing device 5 of this embodiment, when viewed in a direction perpendicular to the first direction and the second direction, the regulating member 60 extends from the end of the first flow path 32 on the second flow path 33 side, beyond the center C2 of the first flow path 32 in the second direction, and toward the end on the opposite side of the second flow path 33.

[0072] As a result, the air flowing through the first flow passage 32 is easily allowed to flow into the second flow passage 33 after being received by the restricting member 60 .

[0073] In the interlacing device 5 of this embodiment, the range of the first flow path 32 in which the nozzle members 42 are arranged is divided into three equal parts in the first direction, and the restricting member 60 is disposed in the most upstream range A1 of these three equal parts.

[0074] This allows the air that has flowed in to be received further upstream of the first flow path 32, thereby further reducing variations in the flow speed of the air flowing through the second flow path 33.

[0075] In the interlacing device 5 of this embodiment, when viewed in a direction perpendicular to the first direction and the second direction, the regulating member 60 extends from the end of the first flow path 32 on the second flow path 33 side to the range A2 that is the farthest from the second flow path 33 among the three equal parts of the first flow path 32 divided in the second direction.

[0076] As a result, the restricting member 60 is positioned in a range including the center of the first flow path 32 in the second direction and its vicinity, so that the air flowing through the first flow path 32 is more easily caught by the restricting member 60.

[0077] In the interlacing device 5 of this embodiment, the restricting member 60 has a restricting surface 64 and a first positioning portion 61. The restricting surface 64 restricts a portion of the air flowing through the first flow path 32. The first positioning portion 61 contacts the inner wall surface of the second flow path 33, thereby suppressing change in the position of the restricting member 60 within the housing 30 in the first direction.

[0078] This makes it possible to use one regulating member 60 to regulate the air flow and determine the position in the first direction.

[0079] In the intertwining device 5 of this embodiment, an opening 34 is formed in the housing 30 at a position corresponding to the downstream end of the air flow of the second flow path 33. The base portion 41 of the restricting member 60 fits within the size of the opening 34 of the housing 30.

[0080] This allows the restriction member 60 to be inserted and positioned through the opening in the housing.

[0081] In the interlacing device 5 of this embodiment, the restricting member 60 is formed with a hook portion 65 for hooking a tool when removing the restricting member 60 from the housing 30.

[0082] This makes it easier to remove the restricting member 60 from inside the housing.

[0083] In the interlacing device 5 of this embodiment, when viewed in the first direction, the inner wall surface of the first flow path 32 includes an arc, and the restricting member 60 includes a rectangle.

[0084] Because the contours of an arc and a rectangle do not completely match, a gap exists between the first flow path 32 and the regulating member 60. Therefore, the air received by the regulating member 60 can flow toward the second flow path 33 through this gap.

[0085] In the intertwining device 5 of this embodiment, a part of the restricting member 60 is in contact with the inner wall surface of the first flow channel 32 , and the inner wall surface of the first flow channel 32 supports the restricting member 60 .

[0086] This eliminates the need for or simplifies the holding structure of the restricting member 60.

[0087] In the interlacing device 5 of this embodiment, the regulating member 60 includes a second positioning portion 62. When the second positioning portion 62 comes into contact with the nozzle unit 40, change in the position of the regulating member 60 in the housing 30 in the second direction is suppressed.

[0088] This allows the restriction member 60 to be positioned in the second direction.

[0089] In the interlacing device 5 of this embodiment, the regulating member 60 includes a third positioning portion 63. A direction perpendicular to the first direction and the second direction is referred to as the third direction. The third positioning portion 63 contacts the inner wall surface of the second flow path 33, thereby suppressing change in the position of the regulating member 60 in the housing 30 in the third direction.

[0090] This allows the restriction member 60 to be positioned in the third direction.

[0091] The preferred embodiment of the present invention has been described above, but the above configuration can be modified, for example, as follows. Each modification may be made alone, or multiple modifications may be made in any combination.

[0092] The method of attaching the housing 30 and the nozzle unit 40 in the above embodiment is an example, and for example, the base portion 41 and the stepped edge portion 35 may be omitted.

[0093] In the above embodiment, the restriction surface 64 is disposed at only one location in the first direction, but may be disposed at two or more locations.

[0094] The first flow path 32 and the second flow path 33 do not necessarily intersect at right angles, and may intersect at an angle other than 90 degrees. Furthermore, the direction in which the inlet pipe 51 supplies air does not have to coincide with the first direction. In other words, after the inlet pipe 51 supplies air, the air may be rectified by another flow path so that the direction of the flow path is in the first direction, and then connected to the first flow path 32. [Explanation of symbols]

[0095] 1. Spinning take-up machine 5 Interlacing Device 9 Yarn winding machine 30 Housing 31 Air flow path 32 First Channel 33 Second Channel 40 Nozzle Unit 41 Base 42 Nozzle member 60 Regulatory member 64 Regulatory aspects

Claims

1. a housing having an air flow path formed therein; a nozzle unit having a plurality of nozzle members arranged in a first direction, and injecting air supplied to an inlet of the nozzle member via the air flow path from each of the plurality of nozzle members onto a plurality of yarns arranged in the first direction, thereby entangling the plurality of yarns; Equipped with The air flow path is a first flow path extending in the first direction; a second flow path that is connected to the first flow path, extends in a second direction intersecting the first direction, and is a flow path toward the inlet of the nozzle member; and a restricting member that restricts a part of the flow of air flowing through the first flow path is disposed in the first flow path upstream of a center of an area in the first direction where the nozzle members are arranged, The intertwining device is characterized in that the regulating member covers at least half of the cross-sectional area of the first flow path.

2. The interlacing device according to claim 1, When viewed in a direction perpendicular to the first direction and the second direction, the regulating member extends from the end of the first flow path on the second flow path side, beyond the center of the first flow path in the second direction, toward the end on the opposite side of the second flow path.

3. The interlacing device according to claim 1, The intertwining device is characterized in that the regulating member is arranged in the most upstream range of the three equal parts in the first direction that are obtained by dividing the range of the first flow path in which the nozzle members are arranged.

4. The interlacing device according to claim 1, When viewed in a direction perpendicular to the first direction and the second direction, the regulating member extends from the end of the first flow path on the second flow path side to a range farthest from the second flow path among three equal parts of the first flow path divided in the second direction.

5. 5. The interlacing device according to claim 1, The regulating member is a regulating surface that regulates a portion of the flow of air flowing through the first flow path; a first positioning portion that contacts an inner wall surface of the second flow path to suppress a change in the position of the regulating member in the housing in the first direction; An interlacing device comprising:

6. 6. The interlacing device according to claim 1, an opening is formed in the housing at a position corresponding to a downstream end of the second flow path in the air flow direction, The size of the restricting member is within the range of the size of the opening of the housing.

7. 7. The interlacing device according to claim 6, The interlacing device is characterized in that the regulating member is formed with a hook portion for hooking a tool when removing the regulating member from the housing.

8. 8. The interlacing device according to any one of claims 1 to 7, The intertwining device, wherein, when viewed in the first direction, an inner wall surface of the first flow path includes an arc, and the regulating member includes a rectangle.

9. 9. The interlacing device according to claim 8, A entangling device, characterized in that a portion of the regulating member is in contact with an inner wall surface of the first flow path, and the inner wall surface of the first flow path supports the regulating member.

10. 9. An interlacing device according to any one of claims 1 to 8, the restricting member includes a second positioning portion, The interlacing device, characterized in that the second positioning portion comes into contact with the nozzle unit, thereby suppressing change in the position of the regulating member in the housing in the second direction.

11. 11. An interlacing device according to any one of claims 1 to 10, the restricting member includes a third positioning portion, A direction perpendicular to the first direction and the second direction is referred to as a third direction, The interlacing device, characterized in that the third positioning portion contacts an inner wall surface of the second flow path, thereby suppressing change in the position of the regulating member within the housing in the third direction.

12. An interlacing device according to any one of claims 1 to 11, a yarn winding machine that winds the plurality of yarns that have been entangled by the entangling device to simultaneously form a plurality of packages; A spinning take-up machine comprising:

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