Thread processing mechanism and spinning take-up device

Abstract

To provide a yarn processing mechanism which can effectively suppress dispersion of oil solution mist scattering from a yarn processor.SOLUTION: A yarn processing mechanism includes a cover member 30 in which an exhaust chamber 31 having an introduction port 32 formed on virtual lines L1, L2 drawn in a guide direction of a fluid guide section 23 from a base end of the fluid guide section 23 and an exhaust port 33 formed at a position different from the introduction port 32 is formed so as to extend in a third direction orthogonal to a first direction and a second direction. An inner wall of the exhaust chamber 31 has curved sections 34, 35 convex to the outside in a cross section orthogonal to the third direction.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a yarn processing mechanism capable of suppressing the diffusion of an oil agent mist scattered from a yarn processing apparatus that performs a predetermined process on a yarn to which an oil agent is applied by injecting a fluid, and a spinning and winding apparatus including the yarn processing mechanism.

Background Art

[0002] Conventionally, for the purpose of reducing friction, suppressing static electricity, improving the package shape, improving the uniformity of yarn heating, etc., an oil agent may be applied to the yarn. In a yarn processing apparatus that performs a predetermined process on a yarn by injecting a fluid into a yarn running space where the yarn to which the oil agent is applied runs, a part of the oil agent adhering to the yarn is blown off by the injection of the fluid and becomes an oil agent mist. When such an oil agent mist scatters from the yarn processing apparatus, it may adhere to resin parts and deteriorate the resin parts, or the atomized oil agent may adhere to the yarn or the package and deteriorate the yarn quality. As such a yarn processing apparatus, for example, an intermingling device, a migration nozzle, etc. are known.

[0003] In order to solve the above problems, for example, Patent Document 1 discloses a technique of guiding a jet flow ejected from a yarn running space of an intermingling device to a duct body and atomizing and recovering the oil agent mist with a filter provided inside the duct body. Further, Patent Document 2 discloses a technique of sucking floating components such as an oil agent mist generated in an intermingling device.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] However, simply arranging the duct body near the entanglement device as in Patent Document 1 still leaves a large amount of oil mist that does not flow into the duct body, and the diffusion of the oil mist could not be sufficiently suppressed. Also, when recovering the oil mist by suction as in Patent Document 2, the amount of oil mist that can be recovered greatly depends on the capacity of the suction device. If the capacity of the suction device is low, there is a risk that the oil mist will diffuse.

[0006] In view of the above problems, an object of the present invention is to provide a yarn processing mechanism capable of effectively suppressing the diffusion of oil mist scattered from a yarn processing apparatus.

Means for Solving the Problems

[0007] The yarn processing mechanism according to the present invention includes a yarn processing unit in which a yarn running space through which a yarn to which an oil agent is applied runs is formed along a first direction, and a yarn processing apparatus that performs a predetermined process on the yarn by injecting a fluid into the yarn running space. A fluid guide portion is disposed away from the yarn processing unit in the first direction and extends in a guide direction having a component in a second direction orthogonal to the first direction. An exhaust chamber having an inlet formed on an imaginary line drawn in the guide direction from the base end of the fluid guide portion and an exhaust port formed at a position different from the inlet is formed to extend in a third direction orthogonal to the first direction and the second direction. The exhaust chamber is provided with a cover member, and the inner wall of the exhaust chamber has a curved portion convex outward in a cross section orthogonal to the third direction.

[0008] According to the present invention, the fluid injected into the yarn running space of the yarn processing apparatus collides with the fluid guide portion after being discharged from the yarn running space. Most of the fluid that collides with the fluid guide portion flows along the fluid guide portion in the guide direction and flows into the exhaust chamber from the inlet. Since a part of the inner wall of the exhaust chamber is a curved portion, the fluid that has flowed into the exhaust chamber forms a swirling flow in the exhaust chamber, and the flow of the fluid toward the inside of the exhaust chamber becomes dominant near the inlet. Therefore, it becomes difficult for the oil mist that has flowed into the exhaust chamber together with the fluid to flow out from the inlet, and thus the diffusion of the oil mist scattered from the yarn processing apparatus can be effectively suppressed.

[0009] In the present invention, it is preferable that the exhaust port is formed at one end of the exhaust chamber in the third direction.

[0010] With such a configuration, a fluid flow is likely to be formed in the exhaust chamber toward one end in the third direction where the exhaust port is located, and a three-dimensional flow is formed in which the swirling flow heads toward the exhaust port in a spiral shape. Therefore, the oil mist can be more efficiently discharged from the exhaust port together with the fluid.

[0011] In the present invention, it is preferable that the curved portions are provided on both sides of the inlet in the first direction.

[0012] According to such a configuration, the formation of the swirling flow in the exhaust chamber is further promoted, and the outflow of the fluid in the exhaust chamber from the inlet can be more effectively suppressed.

[0013] In the present invention, the fluid guides are arranged on both sides of the yarn running space in the first direction, the exhaust chamber is partitioned into a first exhaust chamber arranged on one side in the first direction and a second exhaust chamber arranged on the other side in the first direction, and it is preferable that the inlet and the exhaust port are formed in each of the first exhaust chamber and the second exhaust chamber.

[0014] With such a configuration, the fluids discharged from both sides of the yarn running space flow into the partitioned first exhaust chamber and second exhaust chamber respectively without merging in the exhaust chamber, and are discharged from the exhaust port. Therefore, the flow is less likely to be disturbed in the first exhaust chamber and the second exhaust chamber, and it becomes easier to form a flow toward the exhaust port.

[0015] In the present invention, it is preferable that an outflow suppression portion is provided which protrudes inward from the inner wall of the exhaust chamber in a cross section perpendicular to the third direction to suppress the outflow of the fluid in the exhaust chamber from the inlet.

[0016] By providing such an outflow suppression part, the fluid that has once flowed into the exhaust chamber is further suppressed from flowing out of the exhaust chamber through the inlet. Therefore, the diffusion of the oil mist scattered from the yarn processing apparatus can be more effectively suppressed.

[0017] In the present invention, it is preferable that the outflow suppression part protrudes in a direction having a component in the guiding direction and a component approaching the virtual line.

[0018] According to such a configuration, when the fluid in the exhaust chamber collides with the outflow suppression part, the fluid easily flows in the direction having the component in the guiding direction of the outflow suppression part, that is, the direction toward the inside of the exhaust chamber. Therefore, the outflow of the fluid in the exhaust chamber from the inlet can be more effectively suppressed.

[0019] In the present invention, it is preferable that the outflow suppression part is provided on both sides of the inlet in the first direction.

[0020] By providing the outflow suppression part on both sides of the inlet, the outflow of the fluid in the exhaust chamber from the inlet can be more effectively suppressed.

[0021] In the present invention, it is preferable that a groove part convex downward is formed by the inner wall of the exhaust chamber and the outflow suppression part.

[0022] According to such a configuration, the oil droplets generated by the oil mist being atomized into oil droplets in the exhaust chamber can be collected in the groove part, and the contamination of the apparatus and the yarn by the oil droplets can be suppressed.

[0023] In the present invention, it is preferable that the outflow suppression part is integrally formed with the cover member.

[0024] By doing so, the number of parts can be reduced, and the assembly of the outflow suppression part becomes unnecessary.

[0025] In the present invention, it is preferable that a protruding portion is provided on the opposite side of the yarn processing portion across the fluid guiding portion in a cross section orthogonal to the third direction, the protruding portion having a component in the direction opposite to the guiding direction from the proximal end of the outflow suppressing portion and a component approaching the virtual line.

[0026] According to such a configuration, even if a part of the fluid discharged from the yarn running space flows outside the fluid guiding portion without being guided to the exhaust chamber by the fluid guiding portion, the fluid can be guided to the exhaust chamber by the protruding portion. Therefore, the diffusion of the oil agent mist can be suppressed more effectively.

[0027] In the present invention, it is preferable that the protruding portion is integrally formed with the cover member.

[0028] By doing so, the number of parts can be reduced and the assembly of the protruding portion becomes unnecessary.

[0029] In the present invention, the yarn processing apparatus has a base body that supports the yarn processing portion and the fluid guiding portion, and it is preferable that the fluid guiding portion rises from the base body in the guiding direction.

[0030] According to such a configuration, the fluid discharged from the yarn running space and colliding with the fluid guiding portion is easily guided to the exhaust chamber by being blocked by the base body. Therefore, the diffusion of the oil agent mist can be suppressed more effectively.

[0031] In the present invention, it is preferable that a guide groove into which the yarn is inserted is formed in the fluid guiding portion.

[0032] According to such a configuration, since the fluid guiding portion can also be used as a yarn regulating member, an increase in the number of parts can be suppressed.

[0033] In the present invention, a plurality of yarn running spaces are formed in the yarn processing portion in the third direction, and it is preferable that the inlet is formed over a range in which the plurality of yarn running spaces are formed in the third direction.

[0034] According to such a yarn processing device, a predetermined process can be simultaneously performed on a plurality of yarns. Moreover, by forming the inlet widely, the fluid discharged from the plurality of yarn running spaces can be efficiently taken into the exhaust chamber, so that the diffusion of the oil agent mist can be effectively suppressed.

[0035] The spinning and winding device according to the present invention is characterized by comprising an oil agent applying device for applying an oil agent to the yarn, and the yarn processing mechanism described in any one of the above, which is disposed on the downstream side of the oil agent applying device in the yarn running direction.

[0036] With such a spinning and winding device, as already described, the diffusion of the oil agent mist scattered from the yarn processing device can be effectively suppressed.

Brief Description of the Drawings

[0037]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0038] (Spinning and Winding Device) Embodiments of the present invention will be described. FIG. 1 is a schematic diagram of a spinning and winding device including a yarn processing mechanism according to the present embodiment. The vertical, front, and rear directions shown in FIG. 1 are defined as the vertical, front, and rear directions of the spinning and winding device 1, respectively.

[0039] The yarn take-up device 1 takes up a plurality of synthetic fiber yarns Y spun from the spinning device 100, winds them around a plurality of bobbins B, and forms a plurality of packages P. The yarn take-up device 1 includes an oil agent guide 2 (corresponding to the oil agent application device of the present invention), a stretching device 3, a first yarn treatment mechanism 4, a first take-up roller 5, a second yarn treatment mechanism 6, a second take-up roller 7, and a winding device 8. In the spinning device 100, the polymer supplied from a polymer supply device (not shown) composed of a gear pump or the like is extruded downward through a spinning die (not shown).

[0040] A plurality of yarns Y spun from the spinning device 100 travel along a yarn path along the oil agent guide 2, the stretching device 3, the first yarn treatment mechanism 4, the first take-up roller 5, the second yarn treatment mechanism 6, and the second take-up roller 7 in a state of being arranged in a direction perpendicular to the plane of FIG. 1. Further, the plurality of yarns Y are distributed in the front-rear direction from the second take-up roller 7 and are respectively wound around the plurality of bobbins B in the winding device 8.

[0041] A plurality of yarns Y spun from the spinning device 100 are sent to the stretching device 3 after being applied with an oil agent by the oil agent guide 2. The oil agent guide 2 of the present embodiment is arranged between the spinning device 100 and the stretching device 3 in the yarn traveling direction, but the oil agent guide 2 can be arranged at an arbitrary position upstream of the first yarn treatment mechanism 4 in the yarn traveling direction. The stretching device 3 has a configuration in which a plurality of heating rollers (not shown) are housed in a heat preservation box. The stretching device 3 stretches a plurality of yarns Y spun from the spinning device 100 while heating them with the plurality of heating rollers. The plurality of yarns Y stretched by the stretching device 3 are sent to the winding device 8 by the first take-up roller 5 and the second take-up roller 7.

[0042] The first yarn processing mechanism 4 is composed of a migration nozzle 40 (corresponding to the yarn processing device of the present invention) and a cover member 50. The migration nozzle 40 has substantially the same configuration as the entanglement device 20, which will be described in detail later, and imparts an oil agent to the yarn Y by injecting compressed air at a pressure lower than that of the entanglement device 20. The second yarn processing mechanism 6 is composed of an entanglement device 20 (corresponding to the yarn processing device of the present invention) and a cover member 30. The entanglement device 20 imparts entanglement to the yarn Y by injecting compressed air at a high pressure. Since the first yarn processing mechanism 4 and the second yarn processing mechanism 6 have the same configuration, only the second yarn processing mechanism 6 will be described in detail below. Regarding the arrangement of the first yarn processing mechanism 4 and the second yarn processing mechanism 6, it can be appropriately changed as long as the second yarn processing mechanism 6 is arranged on the downstream side in the yarn running direction with respect to the first yarn processing mechanism 4. In addition, it is not essential to provide both the first yarn processing mechanism 4 and the second yarn processing mechanism 6 as in the present embodiment, and a configuration in which only one of them is provided may be used.

[0043] The winding device 8 includes a machine base 11, a turret 12, two bobbin holders 13, a support frame 14, a contact roller 15, and a traverse device 16. The winding device 8 rotates the bobbin holders 13 to simultaneously wind a plurality of yarns Y sent from the second take-up roller 7 onto a plurality of bobbins B, thereby forming a plurality of packages P.

[0044] A disc-shaped turret 12 is attached to the machine base 11. The turret 12 is rotationally driven by a motor (not shown). Two cylindrical bobbin holders 13 are cantilever-supported on the turret 12 in a posture extending in the front-rear direction. A plurality of bobbins B are mounted on each bobbin holder 13 in a state of being arranged in the axial direction (front-rear direction). When the turret 12 rotates, the two bobbin holders 13 can move between the upper winding position and the lower retracted position.

[0045] The support frame 14 is a member extending in the front-rear direction, and its rear end is fixed to the machine base 11. A roller support member 17 extending in the front-rear direction is attached to the lower part of the support frame 14 so as to be vertically movable with respect to the support frame 14. A contact roller 15 extending in the front-rear direction is rotatably supported by the roller support member 17. By applying a predetermined contact pressure to the package P with this contact roller 15, the shape of the package P is adjusted.

[0046] A traversing device 16 is arranged on the roller support member 17. The traversing device 16 has a plurality of traversing guides 16a arranged in the front-rear direction. The plurality of traversing guides 16a are driven by a motor (not shown) and reciprocate in the front-rear direction. As the traversing guide 16a reciprocates with the yarn Y hung thereon, the yarn Y is wound around the corresponding bobbin B while being swayed back and forth about the fulcrum guide 18.

[0047] (Interlacing device) FIG. 2 is a perspective view of the interlacing device 20. Here, the first direction refers to the direction in which the yarn running space 24a described later penetrates. In other words, the yarn running space 24a is formed along the first direction. The second direction is a direction orthogonal to the first direction. The third direction is a direction orthogonal to the first direction and the second direction, and refers to the direction in which a plurality of yarn running spaces 24a are arranged.

[0048] The interlacing device 20 imparts interlacing to a plurality of yarns Y by compressed air. The interlacing device 20 includes a base body 21, a yarn processing unit 22, and two yarn regulating members 23 (corresponding to the fluid guiding part of the present invention). The base body 21 supports the yarn processing unit 22 and the yarn regulating member 23 on one side in the second direction. A flow path (not shown) for supplying compressed air to the yarn processing unit 22 is formed in the base body 21.

[0049] The yarn processing unit 22 has a configuration in which a plurality of yarn processing blocks 24 are arranged in the third direction. A yarn running space 24a is formed in each yarn processing block 24 along the first direction, and the yarn Y runs inside the yarn running space 24a. At the upper part between the yarn processing blocks 24 adjacent to each other, a yarn insertion path 24b for inserting the yarn Y into the yarn running space 24a is formed. At the central part of the yarn processing block 24 in the first direction, an injection port (not shown) for injecting compressed air toward the yarn running space 24a is formed. The yarn Y running in the yarn running space 24a is entangled by the action of the compressed air injected from the injection port. The injected compressed air is discharged as jet flows from both ends of the yarn running space 24a.

[0050] The two yarn regulating members 23 are respectively arranged on both sides of the yarn processing unit 22 in the first direction with a space therebetween. The yarn regulating member 23 rises from the base body 21 to the other side in the second direction and is a plate-like member extending in the third direction. A plurality of guide grooves 23a are formed in the yarn regulating member 23 at equal intervals in the third direction. The guide groove 23a has a slit shape opened upward. By inserting each yarn Y into the corresponding guide groove 23a, the yarn paths of the plurality of yarns Y in the entangling device 20 are defined. In the present embodiment, the guiding direction in which the yarn regulating member 23 extends (rises) from the base body 21 coincides with the direction toward the other side in the second direction. However, the guiding direction of the yarn regulating member 23 may be inclined with respect to the second direction as long as it has a component toward the other side in the second direction.

[0051] (Yarn processing mechanism) In the entanglement device 20 configured as described above, when compressed air (an example of the fluid in the present invention; hereinafter referred to as fluid) is injected, a part of the sizing agent adhering to the yarn Y is blown off to form a sizing agent mist. When such a sizing agent mist scatters from the yarn running space 24a together with the jet flow from the entanglement device 20, it may adhere to resin parts and deteriorate the resin parts, or adhere to the yarn Y or the package P and deteriorate the yarn quality. Therefore, the second yarn processing mechanism 6 is provided with a cover member 30 for efficiently collecting the sizing agent mist scattered from the entanglement device 20 and suppressing the diffusion of the sizing agent mist. Hereinafter, the cover member 30 of the second yarn processing mechanism 6 (hereinafter simply referred to as the yarn processing mechanism 6) will be described, but the cover member 50 of the first yarn processing mechanism 4 has the same configuration.

[0052] FIG. 3 is a perspective view showing the external appearance of the yarn processing mechanism 6. FIG. 4 is a cross-sectional view of the yarn processing mechanism 6, and more specifically, it is a cross-sectional view in a cross-section orthogonal to the third direction. As shown in FIG. 3, the yarn processing mechanism 6 includes an entanglement device 20, a housing 29, and a cover member 30. The housing 29 is a box-shaped member that houses the entanglement device 20, and the surface on the other side in the second direction is an opening surface. One end of the housing 29 in the third direction is fixed to a machine base (not shown) of the spinning take-up device 1 via a support 60.

[0053] As shown in FIG. 4, the cover member 30 is disposed on the other side of the entanglement device 20 in the second direction and covers the entanglement device 20. A gap through which the yarn Y imparted with entanglement by the entanglement device 20 can pass is secured between the housing 29 and the cover member 30. The cover member 30 extends in the third direction, and an exhaust chamber 31 that also extends in the third direction is formed inside thereof. The exhaust chamber 31 of the present embodiment is partitioned into a first exhaust chamber 31a facing the yarn regulating member 23 on the upstream side in the yarn running direction and a second exhaust chamber 31b facing the yarn regulating member 23 on the downstream side in the yarn running direction. That is, the exhaust chamber 31 is partitioned into a first exhaust chamber 31a disposed on one side in the first direction and a second exhaust chamber 31b disposed on the other side in the first direction. Hereinafter, when the first exhaust chamber 31a and the second exhaust chamber 31b are not particularly distinguished, they are simply referred to as the exhaust chamber 31.

[0054] An inlet 32 is formed on one side of the exhaust chamber 31 in the second direction, and an exhaust port 33 (see FIG. 3) is formed at one end of the exhaust chamber 31 in the third direction. The inlet 32 of the first exhaust chamber 31a is formed on an imaginary line L1 drawn from the base end of the yarn regulating member 23 disposed on the upstream side in the yarn running direction in the guiding direction of the yarn regulating member 23. The inlet 32 of the second exhaust chamber 31b is formed on an imaginary line L2 drawn from the base end of the yarn regulating member 23 disposed on the downstream side in the yarn running direction in the guiding direction of the yarn regulating member 23. The inlet 32 is formed over a range where a plurality of yarn running spaces 24a are formed in the third direction.

[0055] The inlet 32 is formed at the center of the exhaust chamber 31 in the first direction. In a cross section orthogonal to the third direction, the inner wall of the exhaust chamber 31 has a shape close to an ellipse and has curved portions 34, 35 on both sides in the first direction with the inlet 32 interposed therebetween. The curved portions 34, 35 have a curved shape convex outward in a cross section orthogonal to the third direction. The curved portions 34, 35 are connected to a straight portion 36 on the other side in the second direction.

[0056] At the ends of the curved portions 34, 35 on the side opposite to the side connected to the straight portion 36, outflow suppressing portions 37, 38 protruding inward of the exhaust chamber 31 are formed. The outflow suppressing portions 37, 38 protrude from the inner wall of the exhaust chamber 31 in a direction having a component in the guiding direction of the yarn regulating member 23 (a component toward the other side in the second direction in this embodiment) and a component approaching the imaginary line L1 (L2). The opening between the tip of the outflow suppressing portion 37 and the tip of the outflow suppressing portion 38 serves as the inlet 32.

[0057] On the cover member 30, a protruding portion 39 is formed on the opposite side of the yarn processing portion 22 with the yarn regulating member 23 interposed therebetween in a cross section orthogonal to the third direction. The protruding portion 39 protrudes in a direction having a component in the direction opposite to the guiding direction (a component toward one side in the second direction in this embodiment) from the base end of the outflow suppressing portion 38 and a component approaching the imaginary line L1 (L2).

[0058] The exhaust ports 33 provided at one ends of the first exhaust chamber 31a and the second exhaust chamber 31b in the third direction are connected to an exhaust duct (not shown). Thereby, the fluid that has flowed into the exhaust chamber 31 from the inlet 32 can be discharged from the exhaust port 33. The exhaust duct connected to the exhaust port 33 may be open to the atmosphere or may be connected to a suction device. Note that the other end of the cover member 30 in the third direction is closed.

[0059] When the cover member 30 is provided to cover the entanglement device 20, it becomes difficult to thread the yarn onto the entanglement device 20. Therefore, in the present embodiment, a moving mechanism (not shown) is provided so that the cover member 30 can be moved to one side in the third direction. If the cover member 30 is moved to the back side of the support 60, the entanglement device 20 is in an open state, and the threading can be easily performed. Note that a part of the yarn processing unit 22 and the yarn regulating member 23 protrudes from the opening surface of the housing 29 and interferes with the end surface on the other side of the cover member 30 in the third direction when the cover member 30 is moved. Therefore, as shown in FIG. 3, a notch 30a for avoiding interference with the yarn regulating member 23 and a notch 30b for avoiding interference with the yarn processing unit 22 are formed in the end surface on the other side of the cover member 30 in the third direction. However, the specific configuration for moving the cover member 30 is not limited to the configuration described here. Further, the threading may be facilitated by configuring the cover member 30 to be easily detachable.

[0060] (Fluid analysis result) FIG. 5 is a fluid analysis result showing the flow of fluid in the yarn processing mechanism 6. Here, with reference to FIG. 5, the flow of fluid in the yarn processing mechanism 6 will be described.

[0061] The fluid injected into the yarn running space 24a of the yarn processing unit 22 is discharged from both sides of the yarn running space 24a and reaches the yarn regulating member 23. Most of the fluid that has reached the yarn regulating member 23 flows along the yarn regulating member 23 to the other side in the second direction after colliding with the yarn regulating member 23, and thus flows into the exhaust chamber 31 from the inlet 32 (see arrow A). By using the yarn regulating member 23 as a member for guiding the fluid to the exhaust chamber 31 in this way, most of the fluid discharged from the yarn processing unit 22 can be made to flow into the exhaust chamber 31.

[0062] On the other hand, a part of the fluid that has reached the yarn regulating member 23 passes through the guide groove 23a of the yarn regulating member 23. A part of the fluid that has passed through the guide groove 23a is guided to the inlet 32 by the protruding portion 39 and the outflow suppressing portion 38 of the cover member 30, and flows into the exhaust chamber 31 from the inlet 32 (see arrow B). Although the fluid that has passed through the guide groove 23a easily flows out to the outside through the gap between the housing 29 and the cover member 30, the provision of the protruding portion 39 can suppress the outflow of the fluid to the outside.

[0063] The fluid that has flowed into the exhaust chamber 31 branches into a flow toward the curved portion 34 (see arrow C) and a flow toward the curved portion 35 (see arrow D) after colliding with the inner wall of the exhaust chamber 31. Each flow becomes a swirling flow that forms a vortex by flowing along the curved portions 34 and 35. Furthermore, the provision of the outflow suppressing portions 37 and 38 makes it difficult for the swirling flow to flow out from the inlet 32, and a stable swirling flow is formed inside the exhaust chamber 31. Since the exhaust port 33 is provided at one end of the exhaust chamber 31 on the one side in the third direction, a three-dimensional flow in which the swirling flow travels toward the exhaust port 33 in a spiral shape is formed, and the exhaust from the exhaust port 33 is promoted.

[0064] As described above, in the yarn processing mechanism 6, most of the fluid injected into the yarn running space 24a of the yarn processing unit 22 is taken into the exhaust chamber 31, and further, a device is provided to prevent the fluid once flowing into the exhaust chamber 31 from escaping from the exhaust chamber 31. Therefore, a large amount of oil mist is taken into the exhaust chamber 31 together with a large amount of fluid, and by being discharged from the exhaust port 33, the diffusion of the oil mist can be effectively suppressed. According to the fluid analysis results, when the inner wall of the exhaust chamber 131 is rectangular and no curved portion is provided in the cross section orthogonal to the third direction as in the cover member 130 of the comparative example shown in FIG. 7, the fluid recovery rate from the exhaust port 33 was 86.2%. On the other hand, the fluid recovery rate in the present embodiment provided with the curved portions 34 and 35 was greatly improved to 99.0%.

[0065] (Effect) According to the yarn processing mechanism 6, the fluid injected into the yarn running space 24a of the entanglement device 20 (yarn processing device) collides with the yarn regulating member 23 (fluid guiding portion) after being discharged from the yarn running space 24a. Most of the fluid that has collided with the yarn regulating member 23 flows along the yarn regulating member 23 in the guiding direction of the yarn regulating member 23 and flows into the exhaust chamber 31 from the inlet 32. Since a part of the inner wall of the exhaust chamber 31 forms the curved portions 34 and 35, the fluid flowing into the exhaust chamber 31 forms a swirling flow in the exhaust chamber 31, and the flow of the fluid toward the inside of the exhaust chamber 31 becomes dominant in the vicinity of the inlet 32. Therefore, it becomes difficult for the oil mist flowing into the exhaust chamber 31 together with the fluid to flow out from the inlet 32, and thus the diffusion of the oil mist scattered from the entanglement device 20 can be effectively suppressed.

[0066] In the present embodiment, the exhaust port 33 is formed at one end of the exhaust chamber 31 in the third direction. With such a configuration, it becomes easy to form a flow of the fluid in the exhaust chamber 31 toward one end in the third direction where the exhaust port 33 is located, and a three-dimensional flow is formed in which the swirling flow heads toward the exhaust port 33 in a spiral shape. Therefore, the oil mist can be more efficiently discharged from the exhaust port 33 together with the fluid.

[0067] In this embodiment, the curved portions 34 and 35 are provided on both sides of the inlet 32 in the first direction. According to such a configuration, the formation of a swirling flow in the exhaust chamber 31 is further promoted, and the outflow of the fluid in the exhaust chamber 31 from the inlet 32 can be more effectively suppressed.

[0068] In this embodiment, the yarn regulating members 23 are arranged on both sides of the yarn running space 24a in the first direction, and the exhaust chamber 31 is partitioned into a first exhaust chamber 31a arranged on one side in the first direction and a second exhaust chamber 31b arranged on the other side in the first direction. An inlet 32 and an exhaust port 33 are formed in each of the first exhaust chamber 31a and the second exhaust chamber 31b. With such a configuration, the fluid discharged from both sides of the yarn running space 24a flows into the partitioned first exhaust chamber 31a and second exhaust chamber 31b respectively without merging in the exhaust chamber 31, and is discharged from the exhaust port 33. Therefore, the flow is less likely to be disturbed in the first exhaust chamber 31a and the second exhaust chamber 31b, and it is easier to form a flow toward the exhaust port 33.

[0069] In this embodiment, outflow suppressing portions 37 and 38 are provided which project inward from the inner wall of the exhaust chamber 31 in a cross section orthogonal to the third direction, and suppress the outflow of the fluid in the exhaust chamber 31 from the inlet 32. By providing such outflow suppressing portions 37 and 38, the outflow of the fluid once flowing into the exhaust chamber 31 from the inlet 32 to the outside of the exhaust chamber 31 is further suppressed. Therefore, the diffusion of the oil mist scattered from the entanglement device 20 can be more effectively suppressed.

[0070] In this embodiment, the outflow suppressing portions 37 and 38 have a component in the guiding direction of the yarn regulating member 23 and project in a direction having a component approaching the virtual line L1 (L2). According to such a configuration, when the fluid in the exhaust chamber 31 collides with the outflow suppressing portions 37 and 38, the fluid easily flows in the direction having the component in the guiding direction of the outflow suppressing portions 37 and 38, that is, the direction toward the inside of the exhaust chamber 31. Therefore, the outflow of the fluid in the exhaust chamber 31 from the inlet 32 can be more effectively suppressed.

[0071] In the present embodiment, the outflow restraining portions 37 and 38 are provided on both sides of the inlet 32 in the first direction. By providing the outflow restraining portions 37 and 38 on both sides of the inlet 32, the outflow of the fluid in the exhaust chamber 31 from the inlet 32 can be more effectively suppressed.

[0072] In the present embodiment, for example, the cover member 30 is arranged such that one side in the second direction is the lower side in the vertical direction and the other side in the second direction is the upper side in the vertical direction in FIG. 4, and it is preferable that a groove portion convex downward is formed by the inner wall of the exhaust chamber 31 and the outflow restraining portions 37 and 38. According to such a configuration, the oil droplets generated by the atomization of the oil agent mist in the exhaust chamber 31 can be collected in the groove portion, and the contamination of the device and the yarn Y by the oil droplets can be suppressed. However, the arrangement of the cover member 30 is not limited to the above arrangement.

[0073] In the present embodiment, the outflow restraining portions 37 and 38 are integrally formed with the cover member 30. By doing so, the number of parts can be reduced and the assembly of the outflow restraining portions 37 and 38 becomes unnecessary.

[0074] In the present embodiment, in a cross section orthogonal to the third direction, on the opposite side of the yarn processing portion 22 with the yarn regulating member 23 interposed therebetween, a protruding portion 39 is provided which has a component in the opposite direction to the guiding direction from the base end of the outflow restraining portion 38 and also has a component approaching the virtual line L1 (L2). According to such a configuration, even if a part of the fluid discharged from the yarn running space 24a flows outside the yarn regulating member 23 without being guided to the exhaust chamber 31 by the yarn regulating member 23, the fluid can be guided to the exhaust chamber 31 by the protruding portion 39. Therefore, the diffusion of the oil agent mist can be more effectively suppressed.

[0075] In the present embodiment, the protruding portion 39 is integrally formed with the cover member 30. By doing so, the number of parts can be reduced and the assembly of the protruding portion 39 becomes unnecessary.

[0076] In this embodiment, the entanglement device 20 has a base body 21 that supports a yarn processing unit 22 and a yarn regulating member 23, and the yarn regulating member 23 rises from the base body 21 in the guiding direction. According to such a configuration, the fluid discharged from the yarn running space 24a and colliding with the yarn regulating member 23 is blocked by the base body 21, making it easier to be guided to the exhaust chamber 31. Therefore, the diffusion of the sizing agent mist can be suppressed more effectively.

[0077] In this embodiment, a guide groove 23a into which the yarn Y is inserted is formed in the fluid guiding portion (yarn regulating member 23). According to such a configuration, since the fluid guiding portion can also be used as the yarn regulating member 23, an increase in the number of parts can be suppressed.

[0078] In this embodiment, a plurality of yarn running spaces 24a are formed in the yarn processing unit 22 in the third direction, and the inlet 32 is formed over the range where the plurality of yarn running spaces 24a are formed in the third direction. According to such an entanglement device 20, a predetermined process can be simultaneously performed on a plurality of yarns Y. Moreover, by forming the inlet 32 wide, the fluid discharged from the plurality of yarn running spaces 24a can be efficiently taken into the exhaust chamber 31, so that the diffusion of the sizing agent mist can be effectively suppressed.

[0079] (Other Embodiments) A modified example in which various changes are made to the above embodiment will be described.

[0080] In the above embodiment, curved portions 34 and 35 convex outward are provided on the inner wall of the exhaust chamber 31 on both sides of the inlet 32 in the first direction. However, a curved portion may be provided only on one side of the inlet 32 in the first direction. In the modified examples shown in FIGS. 6a and 6b of the analysis results, the curved portion is provided only on one side. In the modified example of FIG. 6a, the fluid recovery rate is 91.8%, and in the modified example of FIG. 6b, the fluid recovery rate is 89.7%, resulting in good results.

[0081] In the above-described embodiment, it is assumed that the exhaust chamber 31 is partitioned into a first exhaust chamber 31a and a second exhaust chamber 31b. However, as in the modified example whose analysis result is shown in FIG. 6(c), the first exhaust chamber 31a and the second exhaust chamber 31b may be integrated into one. Although the swirling flow in the exhaust chamber 31 tends to be disturbed, the fluid recovery rate was still a good result of 93.1%.

[0082] In the above-described embodiment, it is assumed that the outflow suppression portions 37 and 38 are provided on both sides of the inlet 32 in the first direction. However, the outflow suppression portion may be provided only on one side of the inlet 32 in the first direction, or the outflow suppression portion may be omitted.

[0083] In the above-described embodiment, it is assumed that the exhaust port 33 is formed at one end of the exhaust chamber 31 in the third direction. However, the exhaust ports may be formed at both ends of the exhaust chamber 31 in the third direction, or the exhaust ports may be formed at other portions.

[0084] In the above-described embodiment, the yarn regulating member 23 and the exhaust chamber 31 having the inlet 32 and the exhaust port 33 are respectively arranged on both sides of the yarn processing portion 22 in the first direction. However, the yarn regulating member 23 and the exhaust chamber 31 may be arranged only on one side of the yarn processing portion 22 in the first direction. In this case, it is preferable to provide the yarn regulating member 23 and the exhaust chamber 31 on the downstream side in the yarn running direction of the yarn processing portion 22. This is because, on the downstream side in the yarn running direction of the yarn processing portion 22, the fluid containing the oil mist discharged from the yarn running space 24a easily flows out between the housing 29 and the cover member 30 together with the accompanying flow accompanying the running of the yarn Y. Further, there may be only one exhaust chamber 31 and one exhaust port 33, and only the inlet 32 may be formed on both sides of the yarn processing portion 22 in the first direction.

[0085] In the above-described embodiment, it is assumed that the outflow suppression portions 37 and 38 are integrally formed with the cover member 30. However, the outflow suppression portions 37 and 38 may be provided as members separate from the cover member 30.

[0086] In the above-described embodiment, it is assumed that the protruding portion 39 is integrally formed with the cover member 30. However, the protruding portion 39 may be provided as a member separate from the cover member 30. Further, it is not essential to provide the protruding portion 39, and the protruding portion 39 may be omitted.

[0087] In the above-described embodiment, it is assumed that the yarn regulating member 23 rises from the base body 21. However, it is not essential for the yarn regulating member 23 to rise from the base body 21, and it may be provided in other modes. If the base body 21 is omitted, the fluid discharged from the yarn running space 24a will also go toward the opposite side of the cover member 30 along the yarn regulating member 23, but still, the effect of suppressing the diffusion of the oil mist can be obtained. In this case, it is preferable that a return portion for suppressing the fluid from going toward the opposite side of the cover member 30 along the yarn regulating member 23 is provided on the yarn regulating member 23. Alternatively, the shape of the cover member 30 may be changed so that the yarn regulating member 23 is also covered by the cover member 30 on one side in the second direction. Alternatively, the cover member 30 may be provided on both sides of the yarn regulating member 23 in the second direction.

[0088] In the above-described embodiment, the yarn regulating member 23 provided in the entanglement device 20 (yarn processing device) is also used as the fluid guide portion of the present invention. However, a fluid guide portion may be provided separately from the yarn regulating member 23, or the fluid guide portion may be provided outside the entanglement device 20. For example, a portion for guiding the fluid discharged from the yarn running space 24a to the inlet 32 of the exhaust chamber 31 may be provided on the cover member 30, and this portion may be made to function as the fluid guide portion.

[0089] In the above-described embodiment, both the entanglement device 20 and the migration nozzle 40 corresponding to the yarn processing device of the present invention perform predetermined processing on a plurality of yarns Y. However, the yarn processing device may perform predetermined processing on a single yarn Y.

[0090] In the above-described embodiment, it is assumed that the spinning take-up device 1 includes the stretching device 3. However, the present invention can also be applied to a spinning take-up device that does not include the stretching device 3.

Explanation of Symbols

[0091] 1: Spinning take-up device 2: Oil agent guide (oil agent application device) 6: Yarn processing mechanism 20: Interlacing device (yarn processing device) 21: Substrate 22: Yarn processing section 23: Yarn regulating member (fluid guiding section) 23a: Guide groove 24a: Yarn running space 30: Cover member 31: Exhaust chamber 31a: First exhaust chamber 31b: Second exhaust chamber 32: Inlet 33: Exhaust port<s 34, 35: Curved portion 37, 38: Outflow suppression section 39: Protruding portion Y: Yarn

Claims

1. A yarn processing apparatus having a yarn processing section in which a yarn running space for a yarn to which an oil agent is applied is formed along a first direction, and performing a predetermined process on the yarn by injecting a fluid into the yarn running space, A fluid guide portion disposed away from the yarn processing section in the first direction and extending in a guide direction having a component in a second direction orthogonal to the first direction, An exhaust chamber having an inlet formed on an imaginary line drawn in the guide direction from the base end of the fluid guide portion and an exhaust port formed at a position different from the inlet, and a cover member formed to extend in a third direction orthogonal to the first direction and the second direction, Comprising, The inner wall of the exhaust chamber has a curved portion convex outward in a cross section orthogonal to the third direction, and the yarn processing mechanism is characterized in that.

2. The exhaust port is formed at one end of the exhaust chamber in the third direction, and the yarn processing mechanism according to claim 1 is characterized in that.

3. The yarn processing mechanism according to claim 1 or 2, wherein the curved portion is provided on both sides of the inlet in the first direction.

4. The fluid guide portions are disposed on both sides of the yarn running space in the first direction, The exhaust chamber is partitioned into a first exhaust chamber disposed on one side in the first direction and a second exhaust chamber disposed on the other side in the first direction, The yarn processing mechanism according to any one of claims 1 to 3, wherein the inlet and the exhaust port are formed in each of the first exhaust chamber and the second exhaust chamber.

5. The yarn processing apparatus has a base body that supports the yarn processing section and the fluid guide portion, The yarn processing mechanism according to any one of claims 1 to 4, wherein the fluid guide portion rises from the base body in the guide direction.

6. The yarn processing mechanism according to any one of claims 1 to 5, wherein a guide groove into which the yarn is inserted is formed in the fluid guide portion.

7. A plurality of the yarn running spaces are formed in the third direction in the yarn processing section, The yarn processing mechanism according to any one of claims 1 to 6, wherein the inlet is formed over a range in which a plurality of the yarn running spaces are formed in the third direction.

8. An oil agent applying device for applying an oil agent to the yarn, A yarn processing mechanism according to any one of claims 1 to 7 disposed downstream of the oil agent applying device in the yarn running direction, A spinning take-up device characterized by comprising.

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