Interlacing device and spinning traction machine

Abstract

The invention provides an interlacing device and a spinning tractor. The interlacing device (5) is provided with a housing (30) and a nozzle unit (40). An air flow path (31) is formed in the housing (30). The nozzle unit (40) sprays from each of the plurality of nozzle members (42) and intertwines the plurality of threads. 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), extends in a second direction intersecting the first direction, and faces the introduction port (44) of the nozzle member (42). A restricting member (60) for restricting a part of the air flowing through the first flow path (32) is disposed in a range (A1) on the most upstream side among the three equal parts in the first direction in the range in which the nozzle members (42) are arranged in the first flow path (32). The restricting member (60) covers half or more of the flow path cross-sectional area of the first flow path (32).

Description

Technical Field

[0001] The present invention mainly relates to a crossing device for applying crossing to a plurality of silk threads. Background Art

[0002] Patent Document 1 is Japanese Unexamined Patent Application Publication No. 2019-35169.

[0003] Patent Document 1 discloses a crossing device provided in a spinning take-off device. The crossing device includes a base body and a plurality of crossing pieces. A fluid passage through which fluid supplied from a fluid supply source flows is formed in the base body. The plurality of crossing pieces are arranged and disposed in a direction along the fluid passage. A fluid supply hole and a fluid ejection hole are respectively formed in the plurality of crossing pieces. The fluid flowing in the fluid passage flows into the fluid supply hole and is ejected from the fluid ejection hole into the silk thread traveling space. Thereby, crossing is applied to the silk threads traveling in the silk thread traveling space. Summary of the Invention

[0004] In the crossing device of Patent Document 1, a plurality of crossing pieces are arranged and disposed in a direction along the fluid passage. Therefore, depending on the flow of the fluid in the fluid passage, a deviation in the ease of fluid flow may occur between the fluid supply holes of the plurality of crossing pieces. As a result, a deviation in the flow velocity of the ejected fluid occurs between the plurality of silk threads, and thus a deviation in the crossing applied to the silk threads also occurs. In view of the above, there is a need for a crossing device capable of reducing the deviation in crossing between a plurality of silk threads.

[0005] The present invention has been completed in view of the above circumstances, and its main object is to provide a crossing device capable of reducing the deviation in crossing between a plurality of silk threads.

[0006] Means for Solving the Problem

[0007] The problem to be solved by the present invention is as described above. Next, the means for solving the problem and its effects will be described.

[0008] According to a first aspect of the present invention, there is provided a texturing device configured as follows. That is, the texturing 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 arranged in a first direction, and air supplied to inlets of the nozzle members through the air flow path is ejected from the plurality of nozzle members to respective ones of a plurality of filaments arranged in the first direction, thereby applying texturing to the plurality of filaments. The air flow path has a first flow path and a second flow path. The first flow path extends along the first direction. The second flow path is connected to the first flow path, extends along a second direction intersecting the first direction, and faces the inlets of the nozzle members. At a position upstream of the center of the first direction within a range where the nozzle members are arranged in the first flow path, a restricting member is disposed to restrict a part of the air flowing in the first flow path. The restricting member covers more than half of the cross-sectional area of the first flow path.

[0009] Thereby, a part of the air flow is temporarily restricted by the restricting member and then directed toward the inlets of the nozzle members. In particular, since the restricting member located relatively upstream in the first flow path covers more than half of the cross-sectional area of the flow path, most of the inflowing air is blocked by the restricting member and then directed toward the second flow path. As a result, the flow velocity of the air flowing in the first flow path hardly affects the flow velocity of the air flowing in the second flow path. Therefore, the deviation of the flow velocity of the air flowing in the second flow path can be reduced. Accordingly, the deviation of the texturing applied to the plurality of filaments can be reduced.

[0010] In the texturing device, preferably, when viewed from a direction perpendicular to the first direction and the second direction, the restricting member extends from an end on the second flow path side in the first flow path beyond the center of the first flow path in the second direction and toward an end on the opposite side of the second flow path.

[0011] Thereby, the air flowing in the first flow path is easily directed toward the second flow path after being blocked by the restricting member.

[0012] In the texturing device, preferably, the restricting member is disposed in the most upstream side range when the range where the nozzle members are arranged in the first flow path is equally divided into three in the first direction.

[0013] Thereby, the inflowing air can be blocked further upstream in the first flow path, and thus the deviation of the flow velocity of the air flowing in the second flow path can be further reduced.

[0014] In the above-described crossing device, preferably, when viewed from a direction perpendicular to the first direction and the second direction, the restricting member extends from an end portion on the second flow path side in the first flow path to a range that is the farthest from the second flow path among the three equal divisions of the first flow path in the second direction.

[0015] Thereby, the restricting member is located in a range including the center of the first flow path in the second direction and its vicinity, so that the air flowing in the first flow path is more easily blocked by the restricting member.

[0016] In the above-described crossing device, preferably, the following configuration is adopted. That is, the restricting member has a restricting surface and a first positioning portion. The restricting surface restricts a part of the flow of the air flowing in the first flow path. The first positioning portion suppresses the position change of the restricting member in the first direction in the housing by contacting the inner wall surface of the second flow path.

[0017] Thereby, by using one restricting member, it is possible to restrict the flow of air and position in the first direction.

[0018] In the above-described crossing device, preferably, the following configuration is adopted. That is, an opening is formed in the housing at a position corresponding to the downstream end of the air flow in the second flow path. The size of the restricting member converges within the size range of the opening of the housing.

[0019] Thereby, the restricting member can be inserted and arranged via the opening of the housing.

[0020] In the above-described crossing device, preferably, a hooking portion for hooking a tool is formed on the restricting member when the restricting member is removed from the housing.

[0021] Thereby, the operation of removing the restricting member from the inside of the housing becomes easy.

[0022] In the above-described crossing device, preferably, when viewed from the first direction, the inner wall surface of the first flow path includes an arc, and the restricting member includes a rectangle.

[0023] Since the contours of the arc and the rectangle do not completely coincide, there is a gap between the first flow path and the restricting member. Therefore, the air blocked by the restricting member can flow toward the second flow path through this gap.

[0024] In the above-described crossing device, preferably, a part of the restricting member contacts the inner wall surface of the first flow path, and the inner wall surface of the first flow path supports the restricting member.

[0025] Thereby, it is possible to eliminate or simplify the holding structure of the restricting member.

[0026] In the above cross-winding device, the following configuration is preferred. That is, the above limiting member is provided with a second positioning portion. The second positioning portion suppresses the position change of the limiting member in the second direction within the housing by contacting the nozzle unit.

[0027] Thereby, the positioning of the limiting member in the second direction can be performed.

[0028] In the above cross-winding device, the following configuration is preferred. That is, the above limiting member is provided with a third positioning portion. The direction perpendicular to the first direction and the second direction is referred to as the third direction. The third positioning portion suppresses the position change of the limiting member in the third direction within the housing by contacting the inner wall surface of the second flow path.

[0029] Thereby, the positioning of the limiting member in the third direction can be performed.

[0030] According to the second aspect of the present invention, a spinning and drawing machine is provided, which includes the above cross-winding device and a yarn take-up machine. The yarn take-up machine takes up multiple yarns that have been cross-wound by the cross-winding device and forms multiple packages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a side view of the spinning and drawing machine.

[0032] Figure 2 It is a perspective view of the cross-winding device.

[0033] Figure 3 It is a perspective view showing the state of inserting the limiting member into the housing.

[0034] Figure 4 It is a perspective view of the state of installing the nozzle unit on the housing.

[0035] Figure 5 It is a sectional view taken along line A-A of the cross-winding device.

[0036] Figure 6 It is a sectional view taken along line B-B of the cross-winding device. DETAILED DESCRIPTION OF THE INVENTION

[0037] Next, the embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 It is a side view of the spinning and drawing machine 1.

[0038] Figure 1The spinning and drawing machine 1 shown is equipped with a spinning device 2 and a thread take-up machine 9. The spinning device 2 is equipped with a spinning spinneret 2a. A molten fiber material such as nylon or polyester is supplied from a raw material supply device (not shown) to the spinning device 2. The spinning device 2 extrudes the molten fiber material in a high-temperature state from the spinning spinneret 2a. Thereby, a plurality of threads 93 are spun from the spinning spinneret 2a. The thread take-up machine 9 takes up the threads 93 spun by the spinning device 2 to manufacture a package 20. The threads 93 are, for example, synthetic fiber filaments such as nylon or polyester. The threads 93 are not short fibers such as those spun, but long fiber filaments (filaments).

[0039] In the thread traveling direction, between the spinning device 2 and the thread take-up machine 9, an oil supply thread guide 3, an extension device 4, a cross-winding device 5, a first thread guide roller 7, and a second thread guide roller 8 are arranged in order from the upstream of the thread traveling direction.

[0040] The oil supply thread guide 3 individually guides a plurality of threads 93 spun from the spinning device 2 while applying an oil agent to the plurality of threads 93. The extension device 4 has a plurality of stretching rollers (not shown). By sandwiching the threads 93 with opposed stretching rollers and rotating the stretching rollers, the threads 93 are stretched. The cross-winding device 5 applies cross-winding to each of the plurality of threads 93. The detailed configuration of the cross-winding device 5 will be described later.

[0041] The first thread guide roller 7 and the second thread guide roller 8 are driven by a motor (not shown). The first thread guide roller 7 and the second thread guide roller 8 wind up the threads 93 and rotate, thereby being able to draw the threads 93. The first thread guide roller 7 draws the threads 93 from the cross-winding device 5. The second thread guide roller 8 draws the threads 93 from the first thread guide roller 7. The threads 93 after passing through the second thread guide roller 8 are supplied to the thread take-up machine 9.

[0042] In the present embodiment, the cross-winding device 5 is arranged upstream in the thread traveling direction of the first thread guide roller 7, but the cross-winding device 5 may also be arranged downstream in the thread traveling direction of the first thread guide roller 7 and upstream in the thread traveling direction of the second thread guide roller 8. In addition, one cross-winding device 5 may be arranged upstream and downstream of the first thread guide roller 7 respectively.

[0043] As Figure 1 shown, the thread take-up machine 9 is equipped with a plurality of fulcrum thread guides 11, a plurality of traversing thread guides 12, and a turntable plate 13.

[0044] Each setting of the fulcrum thread guide 11 for multiple threads 93. One fulcrum thread guide 11 guides one thread 93. The fulcrum thread guide 11 restricts the movement of the package 20 of the thread 93 in the axial direction (in other words, the traverse direction). Each setting of the traverse thread guide 12 for multiple threads 93. One traverse thread guide 12 engages with one thread 93. The traverse thread guide 12 is driven by a traverse motor (not shown) and reciprocates in the axial direction of the package 20. Thus, the thread 93 traverses by the traverse thread guide 12 with the fulcrum thread guide 11 as the fulcrum.

[0045] The turntable plate 13 is a disk-shaped member rotatably mounted on the frame of the thread winder 9. The axial direction of the turntable plate 13 is parallel to the axial direction of the package 20. The turntable plate 13 can rotate about the normal line passing through the center of the disk. A first bobbin holder 14 and a second bobbin holder 15 are respectively provided at two positions on the turntable plate 13 that are opposed across the center of the disk. A plurality of bobbins can be arranged and mounted on the first bobbin holder 14 in the axial direction of the first bobbin holder 14. A plurality of bobbins can be arranged and mounted on the second bobbin holder 15 in the axial direction of the second bobbin holder 15.

[0046] By rotating the turntable plate 13, the positions of the first bobbin holder 14 and the second bobbin holder 15 can be changed. By respectively winding the traversing threads 93 on the bobbins located on the upper side of the first bobbin holder 14 and the second bobbin holder 15, the package 20 is manufactured.

[0047] Next, refer to Figures 2 to 6 The cross-laid device 5 will be described. Figure 2 is a perspective view of the cross-laid device 5. Figure 3 and Figure 4 is an assembled view (exploded perspective view) of the cross-laid device 5. Figure 5 and Figure 6 is a cross-sectional view of the cross-laid device 5.

[0048] The cross-laid device 5 applies cross-laid to each of the multiple threads 93 by respectively ejecting air (specifically, compressed air) to the multiple threads 93. Applying cross-laid means making the elements of the thread 93 (for example, filaments) mutually engage with each other. By applying cross-laid, for example, the unwinding property of the thread 93 becomes good. As Figures 2 to 4 shown, the cross-laid device 5 includes a housing 30, a nozzle unit 40, and a restricting member 60 as main components.

[0049] An inlet pipe 51 is connected to the housing 30. The inlet pipe 51 is connected to a blower or the like outside the cross-laid device 5. Air is supplied to the cross-laid device 5 via the inlet pipe 51. As Figure 5 shown, the air supplied via the inlet pipe 51 flows in the Figure 5 shown air flow path 31 and is supplied to the nozzle unit 40.

[0050] The air flow path 31 has a first flow path 32 extending along a first direction and a second flow path 33 extending along a second direction. In the following description, the first direction is the direction in which the filaments 93 are arranged, the direction in which the nozzle members 42 described later are arranged, and the flow direction of the air supplied from the introduction pipe 51 immediately upstream of the air flow path 31. That the first flow path 32 extends along the first direction means that the first flow path 32 is formed parallel or substantially parallel to the first direction from the upstream end in the flow direction of the first flow path 32. The second direction is a direction intersecting the first direction (an orthogonal direction in the present embodiment). The second direction is the direction from the first flow path 32 toward the nozzle unit 40. That the second flow path 33 extends along the second direction means that the second flow path 33 is formed parallel or substantially parallel to the second direction from the upstream end in the flow direction of the second flow path 33. The third direction is a direction perpendicular to the first direction and the second direction.

[0051] As Figure 5 shown, the first flow path 32 has a straight flow path 32a and a curved flow path 32b.

[0052] 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 introduction pipe 51. The straight flow path 32a is a flow path through which air flows linearly from the upstream (introduction pipe 51 side) toward the downstream (curved flow path 32b side). In addition, the cross-section of the straight flow path 32a is circular and is covered by a circular inner wall surface.

[0053] 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. That is, the curved flow path 32b is a flow path connecting the straight flow path 32a and the second flow path 33. Here, the flow direction of the straight flow path 32a is the first direction, and the flow direction of the second flow path 33 is the second direction. Therefore, in the curved flow path 32b, the flow direction changes from the first direction to the second direction. In addition, the cross-section of the curved flow path 32b is circular and is covered by an arcuate inner wall surface. The cross-section of the curved flow path 32b is in a direction perpendicular to the first direction. In addition, a part of the curved flow path 32b (specifically, the side closer to the nozzle unit 40 in the second direction) is open. And the open part of the curved flow path 32b is connected to the second flow path 33.

[0054] As Figure 3 shown, an opening 34 is formed on one side in the second direction in the housing 30. The opening 34 is connected to the second flow path 33. As will be described later, the restricting member 60 is disposed inside the housing 30 via the opening 34. In addition, the edge portion 35 of the opening 34 has a stepped shape, and the nozzle unit 40 is disposed using this stepped shape.

[0055] As Figure 4and Figure 5 As shown in Figure 5 , the nozzle unit 40 has a base portion 41 and a plurality of nozzle members 42.

[0056] The base portion 41 is connected to the plurality of nozzle members 42. By having the base portion 41, centralized processing of the plurality of nozzle members 42 can be performed. In addition, the base portion 41 has a shape and size corresponding to the above-mentioned edge portion 35, and by disposing the base portion 41 on the edge portion 35, positioning of the nozzle unit 40 with respect to the housing 30 can be performed. Further, the housing 30 and the nozzle unit 40 are fixed by a fixing structure (not shown).

[0057] The nozzle members 42 are arranged and disposed in the first direction. In each nozzle member 42, a thread passage 43 for allowing a single thread 93 to pass therethrough is formed. In addition, an introduction port 44 and a jet port 45 are formed in the nozzle member 42. Air is introduced into the introduction port 44 via the second flow path 33. The air introduced into the introduction port 44 is jetted from the jet port 45 onto the thread 93 passing through the thread passage 43. Thereby, one nozzle member 42 applies entanglement to a single thread 93 passing through the thread passage 43.

[0058] In addition, an upstream thread guide 52 and a downstream thread guide 53 are also mounted on the housing 30. The upstream thread guide 52 is disposed upstream in the thread traveling direction of the nozzle unit 40. The upstream thread guide 52 guides a plurality of threads 93 individually. The downstream thread guide 53 is disposed downstream in the thread traveling direction of the nozzle unit 40. The downstream thread guide 53 guides a plurality of threads 93 individually. Further, the upstream thread guide 52 and the downstream thread guide 53 may be disposed at positions different from those of the entanglement device 5.

[0059] Here, in order to reduce the deviation of the entanglement applied to the plurality of threads 93, it is necessary to reduce the deviation of the flow velocity of the air introduced into the nozzle member 42 (in other words, the flow velocity of the air flowing in the second flow path 33). However, in the present embodiment, since the flow directions of the first flow path 32 and the second flow path 33 are different, a deviation in flow velocity is likely to occur. For example, the air flowing in the first flow path 32 has a component toward the downstream of the first flow path 32. Therefore, it is difficult for the air to flow in the nozzle member 42 on the upstream side (the side close to the introduction pipe 51 and the straight flow path 32a) of the first flow path 32 among the plurality of nozzle members 42. As a result, there is a tendency that the flow velocity of the air supplied to the nozzle member 42 on the upstream side in the first direction is slower than the flow velocity of the air supplied to the nozzle member 42 on the downstream side in the first direction.

[0060] Regarding this point, in the present embodiment, a restricting member 60 is disposed in the air flow path 31. The restricting member 60 reduces the deviation of the above-mentioned flow velocity by restricting the flow of air in the air flow path 31 (details will be described later). The restricting member 60 is manufactured by punching and bending a sheet material. Since the restricting member 60 is manufactured based on a single sheet material, the manufacturing cost can be suppressed.

[0061] First, the shape of the restricting member 60 will be described. As Figure 3 shown, the restricting 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 sheet 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 is orthogonal to the second plate portion 60b. However, the first plate portion 60a and the second plate portion 60b may not be orthogonal. The third plate portions 60c are respectively connected to one ends of the two second plate portions 60b. Specifically, the third plate portions 60c are connected only to a part in the width direction of the second plate portion 60b. In addition, the second plate portion 60b is orthogonal to the third plate portion 60c. However, the second plate portion 60b and the third plate portion 60c may not be orthogonal.

[0062] Next, the function of the restricting member 60 will be described. As Figure 3 shown, the restricting member 60 has a first positioning portion 61, a second positioning portion 62, a third positioning portion 63, a restricting surface 64, and a hooking portion 65. In this specification, positioning means fixing the positions of the respective components at prescribed positions, or restraining (restricting) the positions of the respective components so as not to deviate from an appropriate range.

[0063] As Figure 3 shown, the restricting member 60 is inserted and disposed through the opening 34 of the housing 30. Therefore, the size of the restricting member 60 is within the range of the size of the opening 34. In other words, by aligning the restricting member 60 with a prescribed direction, the restricting member 60 can pass through the opening 34. In particular, in the present embodiment, when viewed from the installation direction (the third direction) of the restricting member 60, the opening 34 is larger than the restricting member 60.

[0064] The restricting member 60 of the present embodiment does not engage with the housing 30. That is, after the restricting member 60 is disposed inside the housing 30 and supported on the inner wall surface of the housing 30, the nozzle unit 40 is installed as Figure 4 shown. Thereby, the first positioning portion 61, the second positioning portion 62, and the third positioning portion 63 function as described later, and the restricting member 60 is positioned in the housing 30.

[0065] The first positioning portion 61 is a portion for positioning the restricting member 60 in the first direction. The first positioning portion 61 is the front end of the third plate portion 60c. As Figure 5 shown, the first positioning portion 61 faces the inner wall surface of the second flow path 33. In the present specification, facing does not distinguish between contact and non-contact. Even if the restricting member 60 is subjected to a force in the first direction, the movement of the restricting member 60 in the first direction can be suppressed by the contact between the first positioning portion 61 and the inner wall surface of the second flow path 33. In particular, in the present embodiment, since there are two third plate portions 60c, there are also 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.

[0066] The second positioning portion 62 is a portion for positioning the restricting member 60 in the second direction. The second positioning portion 62 is the front end of the second plate portion 60b. Specifically, it is the portion of the end of the second plate portion 60b that does not form the third plate portion 60c by bending. As Figure 5 shown, the second positioning portion 62 faces the surface of the nozzle unit 40 (specifically, the bottom surface of the base portion 41). Even if the restricting member 60 is subjected to a force in the second direction, the movement of the restricting member 60 in the second direction can be suppressed by the contact between the second positioning portion 62 and the nozzle unit 40. In addition, the other side of the restricting member 60 in the second direction is positioned by being supported on the inner wall surface of the first flow path 32 by the first plate portion 60a.

[0067] The third positioning portion 63 is a portion for positioning the restricting member 60 in the third direction. The third positioning portion 63 is both ends in the width direction of the second plate portion 60b. As Figure 6 shown, the third positioning portion 63 faces the inner wall surface of the second flow path 33. Even if the restricting member 60 is subjected to a force in the third direction, the movement of the restricting member 60 in the third direction can be suppressed by the contact between the third positioning portion 63 and the inner wall surface of the second flow path 33.

[0068] The restricting member 60 of the present embodiment forms the first positioning portion 61, the second positioning portion 62, and the third positioning portion 63 only by punching and bending a single sheet of material. Thereby, the manufacturing cost of the restricting member 60 can be reduced, and positioning in three directions can be performed.

[0069] The restricting surface 64 is a portion for restricting the flow of air flowing in the first flow path 32. The restricting surface 64 is the surface of the second positioning portion 62 facing the introduction pipe 51 (in other words, the upstream). As Figure 5As shown, the restricting surface 64 is disposed in the curved flow path 32b. Specifically, in the first direction, the restricting surface 64 is disposed at a position upstream of the center C1 of the range where the nozzle member 42 is located with respect to the first flow path 32 (a position closer to the introducing pipe 51). More specifically, the restricting surface 64 is disposed in the most upstream range A1 among the three ranges obtained by equally dividing the range where the nozzle member 42 is located in the first flow path 32. Further, in the second direction, the restricting surface 64 extends from the end on the second flow path 33 side of the first flow path 32 beyond the center C2 in the second direction toward the end on the side opposite to the second flow path 33. More specifically, the restricting surface 64 extends beyond the central position C2 to the range A2 that is the farthest from the second flow path 33 among the three equal divisions of the first flow path 32 in the second direction. Further, as Figure 6 shown, the restricting surface 64 covers more than half of the cross-sectional area of the flow path of the first flow path 32 (specifically, the curved flow path 32b).

[0070] With the above configuration, the restricting surface 64 is located at a relatively upstream position in the first flow path 32 and covers a relatively wide range of the first flow path 32. Thus, most of the inflowing air is blocked by the restricting surface 64. Therefore, the flow in the first direction generated by the first flow path 32 can be eliminated. Further, as Figure 6 shown, when viewed from the first direction, the restricting surface 64 is rectangular, and the curved flow path 32b has an inner wall surface including an arc. Therefore, there is a gap between the restricting surface 64 and the inner wall surface of the curved flow path 32b. Thus, the air blocked by the restricting surface 64 mainly flows into the second flow path 33 through this gap. By blocking the air with the restricting surface 64, the flow velocity of the air flowing in the first flow path 32 is less likely to affect the flow velocity of the air flowing in the second flow path 33. According to the above, the deviation of the flow velocity of the air flowing in the second flow path 33 can be reduced. Therefore, the deviation of the cross-winding applied to the plurality of filaments 93 can be reduced.

[0071] That is, in the present embodiment, most of the air flowing in the first flow path 32 is temporarily restricted by the restricting surface 64 to reset the flow velocity in the first direction. The air restricted by the restricting surface 64 flows toward the nozzle unit 40 through diffusion or the like. In other words, the restricting surface 64 only restricts the air flow, and the uniformization of the flow velocity is naturally generated by the air flow. Thus, compared with the configuration in which a plurality of air-conditioning members are arranged to uniformize the flow velocity, the configuration of the present embodiment does not require or simplifies the adjustment of the number, size, and layout of the restricting members, and can achieve the same function as that of Patent Document 1 with a relatively simple structure.

[0072] The hooking 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 on the hooking portion 65. In addition, the hooking portion 65 is not limited to a hole formed perpendicular to the first plate portion 60a, and may also be an annular member or a protruding member connected to the first plate portion 60a. Furthermore, the hooking portion 65 may be formed in a portion other than the first plate portion 60a.

[0073] The purpose of disposing the restricting member 60 of the present embodiment is to restrict a part of the flow of air flowing in the first flow path 32. As long as this purpose can be achieved, the shape or configuration of the restricting member 60 can be appropriately changed. For example, if there is a restricting surface 64, the main purpose of the restricting member 60 can be achieved, and thus at least one positioning portion or hooking portion 65 of the restricting member 60 can be omitted. In this case, an engaging structure for fixing the restricting member 60 to the housing 30 may also be provided. In addition, the restricting member 60 is not limited to a configuration manufactured by processing a plate material. That is, the restricting member 60 is not limited to a plate shape and may also be a block shape. Therefore, the restricting member 60 can also be manufactured by connecting two or more members using fixing members or the like.

[0074] Furthermore, as long as there is a gap between the restricting surface 64 and the inner wall surface of the curved flow path 32b, the shapes of the restricting surface 64 and the curved flow path 32b when viewed from the first direction can be changed. For example, the restricting surface 64 may not be rectangular and may include a curve in its contour. In addition, the cross-sectional area of the flow path of the curved flow path 32b may also be rectangular.

[0075] As described above, the cross-winding device 5 of the present embodiment includes a housing 30 and a nozzle unit 40. An air flow path 31 is formed in the housing 30. The nozzle unit 40 has a plurality of nozzle members 42 arranged in the first direction, and air supplied to the inlets 44 of the nozzle members 42 via the air flow path 31 is ejected from the plurality of nozzle members 42 to the plurality of filaments 93 arranged in the first direction, applying cross-winding to the plurality of filaments 93. The air flow path 31 has a first flow path 32 and a second flow path 33. The first flow path 32 extends along the first direction. The second flow path 33 is connected to the first flow path 32, extends along a second direction intersecting the first direction, and faces the inlet 44 of the nozzle member 42. At a position upstream of the center C1 in the first direction of the range where the nozzle members 42 are arranged in the first flow path 32, a restricting member 60 that restricts a part of the air flowing in the first flow path 32 is disposed, and the restricting member 60 covers more than half of the cross-sectional area of the flow path of the first flow path 32.

[0076] Thus, a part of the air flow is directed toward the inlet 44 of the nozzle member 42 after being temporarily restricted by the restricting member 60. In particular, since the restricting member 60 located relatively upstream in the first flow path 32 covers more than half of the flow path cross-sectional area, most of the inflowing air is blocked by the restricting member 60 and then directed toward the second flow path 33. As a result, the flow velocity of the air flowing in the first flow path 32 is less likely to affect the flow velocity of the air flowing in the second flow path 33. Therefore, the deviation of the flow velocity of the air flowing in the second flow path 33 can be reduced. Consequently, the deviation of the cross-winding applied to the plurality of filaments 93 can be reduced.

[0077] In the cross-winding device 5 of the present embodiment, when viewed from a direction perpendicular to the first direction and the second direction, the restricting member 60 extends from the end on the second flow path 33 side in the first flow path 32 beyond the center C2 in the second direction of the first flow path 32 toward the end on the opposite side of the second flow path 33.

[0078] Thus, the air flowing in the first flow path 32 is likely to flow into the second flow path 33 after being blocked by the restricting member 60.

[0079] In the cross-winding device 5 of the present embodiment, the restricting member 60 is disposed in the most upstream range A1 among the three equal divisions in the first direction of the range where the nozzle members 42 in the first flow path 32 are arranged.

[0080] Thus, the inflowing air can be blocked further upstream in the first flow path 32. Therefore, the deviation of the flow velocity of the air flowing in the second flow path 33 can be further reduced.

[0081] In the cross-winding device 5 of the present embodiment, when viewed from a direction perpendicular to the first direction and the second direction, the restricting member 60 extends from the end on the second flow path 33 side in the first flow path 32 to the range A2 that is the farthest from the second flow path 33 among the three equal divisions of the first flow path 32 in the second direction.

[0082] Thus, the restricting member 60 is located in the range including the center of the first flow path 32 in the second direction and its vicinity. Therefore, the air flowing in the first flow path 32 is more likely to be blocked by the restricting member 60.

[0083] In the cross-winding device 5 of the present embodiment, the restricting member 60 has a restricting surface 64 and a first positioning portion 61. The restricting surface 64 restricts a part of the air flow in the first flow path 32. The first positioning portion 61 restricts the position change of the restricting member 60 in the first direction within the housing 30 by contacting the inner wall surface of the second flow path 33.

[0084] Thus, by using a single restricting member 60, it is possible to restrict the air flow and position the device in the first direction.

[0085] In the networking device 5 of the present embodiment, an opening 34 is formed in the housing 30 at a position corresponding to the downstream end of the air flow in the second flow path 33. The base portion 41 of the restricting member 60 is housed within the range of the size of the opening 34 of the housing 30.

[0086] Thereby, the restricting member 60 can be inserted and disposed via the opening of the housing.

[0087] In the networking device 5 of the present embodiment, a hooking portion 65 for hooking a tool when removing the restricting member 60 from the housing 30 is formed in the restricting member 60.

[0088] Thereby, the operation of removing the restricting member 60 from the inside of the housing becomes easy.

[0089] In the networking device 5 of the present embodiment, when viewed from the first direction, the inner wall surface of the first flow path 32 includes an arc, and the restricting member 60 includes a rectangle.

[0090] Since the contours of the arc and the rectangle do not completely match, there is a gap between the first flow path 32 and the restricting member 60. Therefore, the air blocked by the restricting member 60 can flow toward the second flow path 33 through this gap.

[0091] In the networking device 5 of the present embodiment, a part of the restricting member 60 is in contact with the inner wall surface of the first flow path 32, and the inner wall surface of the first flow path 32 supports the restricting member 60.

[0092] Thereby, the holding structure of the restricting member 60 can be omitted or simplified.

[0093] In the networking device 5 of the present embodiment, the restricting member 60 is provided with a second positioning portion 62. By the second positioning portion 62 coming into contact with the nozzle unit 40, the position change of the restricting member 60 in the second direction within the housing 30 can be suppressed.

[0094] Thereby, the positioning of the restricting member 60 in the second direction can be performed.

[0095] In the networking device 5 of the present embodiment, the restricting member 60 is provided with a third positioning portion 63. The direction perpendicular to the first direction and the second direction is referred to as the third direction. By the third positioning portion 63 coming into contact with the inner wall surface of the second flow path 33, the position change of the restricting member 60 in the third direction within the housing 30 can be suppressed.

[0096] Thereby, the positioning of the restricting member 60 in the third direction can be performed.

[0097] The preferred embodiments of the present invention have been described above, but the above configurations can be changed as follows, for example. The changes can be made individually or in any combination of multiple changes.

[0098] The method of installing the housing 30 and the nozzle unit 40 in the above-described embodiment is an example. For example, the base portion 41 and the stepped edge portion 35 may be omitted.

[0099] In the above-described embodiment, the restricting surface 64 is arranged only at one position in the first direction, but it may also be arranged at two or more positions.

[0100] The first flow path 32 and the second flow path 33 are not limited to being orthogonal, and may also cross at an angle other than 90 degrees. In addition, the direction in which the introduction pipe 51 supplies air may also be inconsistent with the first direction. That is, after the introduction pipe 51 supplies air, rectification may be performed through other flow paths so that the direction of the flow path becomes the first direction, and then it may be connected to the first flow path 32.

Claims

1. A network connection device, characterized in that, Comprising: A housing forming an air flow path; and A nozzle unit having a plurality of nozzle members arranged in a first direction, and ejecting air supplied to inlets of the nozzle members via the air flow path from the plurality of nozzle members to respective ones of a plurality of silk threads arranged in the first direction, thereby applying entanglement to the plurality of silk threads. The air flow path has: A first flow path extending along the first direction; And A second flow path connected to the first flow path, extending along a second direction intersecting the first direction, and leading toward the inlets of the nozzle members. At a position upstream of the center in the first direction of the range in the first flow path where the nozzle members are arranged, a restricting member is disposed to restrict a part of the air flowing in the first flow path. The restricting member covers more than half of the cross-sectional area of the flow path of the first flow path.

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

3. The entanglement device according to claim 1, wherein The restricting member is disposed in the most upstream side range when the range in the first direction where the nozzle members are arranged in the first flow path is equally divided into three parts in the first direction.

4. The entanglement device according to claim 1, wherein When viewed from a direction perpendicular to the first direction and the second direction, the restricting member extends from an end on the second flow path side in the first flow path to a range that is the farthest from the second flow path when the first flow path is equally divided into three parts in the second direction.

5. The entanglement device according to any one of claims 1 to 4, wherein The restricting member has: A restricting surface for restricting a part of the air flowing in the first flow path; and A first positioning portion that suppresses a change in the position of the restricting member in the first direction within the housing by contacting an inner wall surface of the second flow path.

6. The entanglement device according to any one of claims 1 to 5, wherein An opening is formed in the housing at a position corresponding to the downstream end of the air flow in the second flow path, The size of the restricting member converges within the range of the size of the opening in the housing.

7. The entanglement device according to claim 6, wherein A hooking portion for hooking a tool is formed in the restricting member when the restricting member is removed from the housing.

8. The entanglement device according to any one of claims 1 to 7, wherein When viewed from the first direction, the inner wall surface of the first flow path includes an arc, and the restricting member includes a rectangle.

9. The entanglement device according to claim 8, wherein A part of the restricting member contacts the inner wall surface of the first flow path, and the inner wall surface of the first flow path supports the restricting member.

10. The cross-winding device according to any one of claims 1 to 8, characterized in that the above-mentioned restricting member is provided with a second positioning portion, the above-mentioned second positioning portion suppresses the position change of the above-mentioned restricting member in the above-mentioned second direction in the above-mentioned housing by contacting the above-mentioned nozzle unit.

11. The cross-winding device according to any one of claims 1 to 10, characterized in that the above-mentioned restricting member is provided with a third positioning portion, a direction perpendicular to the above-mentioned first direction and the above-mentioned second direction is referred to as a third direction, the above-mentioned third positioning portion suppresses the position change of the above-mentioned restricting member in the above-mentioned third direction in the above-mentioned housing by contacting the inner wall surface of the above-mentioned second flow path.

12. A spinning draw frame, characterized in that, Comprising: the cross-winding device according to any one of claims 1 to 11; and a silk winder that winds a plurality of silk threads subjected to cross-winding by the above-mentioned cross-winding device and simultaneously forms a plurality of packages.

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