Interlacing device
By optimizing fluid ejection dynamics through an acute angle alignment with the recess surface, the interlacing processing device enhances yarn entanglement efficiency by ensuring uniform fluid velocity distribution.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- KYOCERA CORP
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-02
AI Technical Summary
Existing interlacing processing devices face inefficiencies in imparting effective entanglement to yarn due to suboptimal fluid ejection dynamics, leading to uneven fluid velocity distribution and reduced entanglement efficiency.
The device incorporates a yarn path with a recess on the opposing surface of the ejection hole, where the fluid ejection direction forms an acute angle with the recess inner surface, optimizing fluid velocity distribution and enhancing entanglement efficiency by guiding fluid flow efficiently towards the yarn path outlet.
This configuration results in more uniform fluid velocity distribution within the yarn path, significantly improving the entanglement process, making it more efficient and effective.
Smart Images
Figure JP2025044983_02072026_PF_FP_ABST
Abstract
Description
Interlacing processing device
[0001] The present disclosure relates to an interlacing processing device.
[0002] Conventionally, an interlacing processing device is known that has a yarn path for guiding the travel of a yarn and ejection holes that open into the yarn path, and imparts interlacing to the yarn traveling in the yarn path by ejecting a fluid from the ejection holes into the yarn path (see, for example, Patent Document 1).
[0003] Japanese Patent No. 3410420
[0004] The interlacing processing device according to one aspect of the present disclosure has a base body, a yarn path, and ejection holes. The yarn path is located inside the base body and guides the travel of the yarn. The ejection holes are located inside the base body and open into the yarn path. Further, the yarn path has a recess on the opposing surface to the opening of the ejection hole. In a cross-sectional view of the base body orthogonal to the width direction of the yarn path, a virtual line extending along the ejection direction of the fluid from the opening of the ejection hole is inclined toward the inlet of the yarn path from the perpendicular of the opposing surface and intersects the inner surface of the recess at an acute angle.
[0005] FIG. 1 is a schematic perspective view showing the configuration of the interlacing processing device according to the first embodiment. FIG. 2 is a plan view of the interlacing processing device according to the first embodiment as viewed from above. FIG. 3 is a schematic cross-sectional view of the interlacing processing device according to the first embodiment. FIG. 4 is a schematic cross-sectional view of the interlacing processing device according to the second embodiment. FIG. 5 is a schematic cross-sectional view of the interlacing processing device according to the third embodiment. FIG. 6 is a schematic cross-sectional view around the ejection hole in the interlacing processing device according to the fourth embodiment. FIG. 7 is a schematic cross-sectional view around the ejection hole in the interlacing processing device according to another embodiment.
[0006] Hereinafter, embodiments for implementing the interlacing processing device according to the present disclosure (hereinafter referred to as "embodiments") will be described in detail with reference to the drawings. Note that the present disclosure is not limited by this embodiment. Also, the respective embodiments can be appropriately combined within a range that does not conflict with the processing content. Further, in the following embodiments, the same parts are denoted by the same reference numerals, and overlapping explanations are omitted.
[0007] Furthermore, in the embodiments described below, expressions such as "constant," "orthogonal," "perpendicular," or "parallel" may be used, but these expressions do not require strict adherence to "constant," "orthogonal," "perpendicular," or "parallel" conditions. In other words, each of the above expressions allows for deviations such as manufacturing accuracy or installation accuracy.
[0008] Furthermore, in the drawings referenced below, for the sake of clarity, mutually orthogonal X, Y, and Z axis directions are sometimes defined, and a Cartesian coordinate system is shown with the positive Z axis pointing vertically upward.
[0009] <First Embodiment> First, the entanglement processing device 1 according to the first embodiment will be described with reference to Figures 1 to 3. Figure 1 is a schematic perspective view showing the configuration of the entanglement processing device 1 according to the first embodiment. Figure 2 is a plan view of the entanglement processing device 1 according to the first embodiment, viewed from above. Figure 3 is a schematic cross-sectional view of the entanglement processing device 1 according to the first embodiment. Note that Figure 3 shows a schematic cross-sectional view taken along the line III-III in Figure 2.
[0010] As shown in Figures 1 and 2, the entanglement processing device 1 has a base body 10, a thread guide 20, and an ejection hole 30.
[0011] The base body 10 is, for example, a plate-like member with a rectangular shape in plan view, and has an upper surface 101 and a lower surface 102, and a plurality (in this case, four) of sides connecting the upper surface 101 and the lower surface 102. The base body 10 may be, for example, partly composed of ceramics. The ceramics constituting the base body 10 may be, for example, a sintered body mainly composed of alumina, zirconia, silicon nitride, cordierite, etc. The main component is, for example, a material that accounts for 50% or more by mass or 80% or more by mass of the material. By making the base body 10 from ceramics, durability against frictional force generated when the yarn runs in the yarn guide 20 is obtained. The material constituting the base body 10 is not limited to ceramics, but may also be metal or resin.
[0012] As shown in Figure 3, the base body 10 may have a first plate member 11 and a second plate member 12. The first plate member 11 may be a plate-shaped member having an upper surface 101 of the base body 10. The first plate member 11 may be joined to the second plate member 12. That is, the lower surface 11a of the first plate member 11 opposite to the upper surface 101 may be a joining surface that is joined to the second plate member 12.
[0013] The second plate member 12 may be a plate-shaped member having an upper surface 12a which is the surface to be joined to the first plate member 11, and a lower surface 102 located on the opposite side of the upper surface 12a. The second plate member 12 may have a groove extending in one direction (here, in the X-axis direction) on the upper surface 12a which is joined to the lower surface 11a of the first plate member 11, and a thread guide 20 may be formed between such groove and the lower surface 11a of the first plate member 11. In the thread guide 20, the lower surface 11a of the first plate member 11 faces the opening 31 of the ejection hole 30. That is, the lower surface 11a of the first plate member 11 is the surface facing the opening 31 of the ejection hole 30.
[0014] The thread path 20 is located inside the base body 10 and guides the movement of the yarn. The thread path 20 is, for example, a through hole that penetrates two opposing sides 103 and 104 of the base body 10, which is a plate-like member with a rectangular shape in plan view. The two sides 103 and 104 of the base body 10 may, for example, be opposite each other along the X-axis direction, in which case the thread path 20 may extend from side 103 to side 104 of the base body 10 along the X-axis direction. Within such a thread path 20, the yarn moves along the direction of travel A (here, the direction from the positive X-axis to the negative X-axis). The inlet 20a of the thread path 20 is located on side 103 of the base body 10, which is upstream of the direction of travel A, and the outlet 20b of the thread path 20 is located on side 104 of the base body 10, which is downstream of the direction of travel A.
[0015] The ejection hole 30 is located inside the base body 10 and opens into the thread channel 20. Specifically, the thread channel 20 may have a wide section 21 (see Figure 2) in the center in the longitudinal direction (here, the X-axis direction) that is wider than other parts, and the ejection hole 30 may open into this wide section 21. The ejection hole 30 ejects a fluid, such as air, supplied from a fluid supply source (not shown) through its opening 31.
[0016] The entanglement processing device 1 is configured as described above, and by ejecting fluid from the ejection hole 30 into the thread path 20, it imparts entanglement to the thread running in the thread path 20.
[0017] In the entanglement processing apparatus 1 according to the first embodiment, the thread path 20 has a recess 22 on the lower surface 11a of the first plate member 11, which is the surface facing the opening 31 of the ejection hole 30. The inner surface of the recess 22 may be formed in the shape of a concave spherical surface.
[0018] The fluid ejected from the opening 31 of the ejection hole 30 collides with the lower surface 11a of the first plate member 11 within the thread path 20, causing the fluid velocity to decrease near the lower surface 11a of the first plate member 11. By providing a recess 22 on the lower surface 11a of the first plate member 11, the area where the fluid velocity decreases can be moved away from the center of the thread path 20 in the height direction (Z-axis direction), thereby relatively increasing the fluid velocity in the center of the thread path 20 in the height direction.
[0019] In the cross-sectional view shown in Figure 3, that is, the cross-sectional view of the base body 10 perpendicular to the width direction (Y-axis direction) of the thread path 20, the imaginary line extending along the direction of fluid ejection from the opening 31 of the ejection hole 30 is defined as "imaginary line L1". In the cross-sectional view shown in Figure 3 (hereinafter referred to as "side cross-sectional view" as appropriate), this imaginary line L1 is inclined toward the entrance 20a of the thread path 20 than the perpendicular L2 of the lower surface 11a of the first plate member 11, and intersects the inner surface of the recess 22 at an acute angle. The angle α between the imaginary line L1 and the inner surface of the recess 22 does not need to be more than 90°, and may be, for example, 30° or more and 80° or less. Note that the inner surface of the recess 22 in Figure 3 may be part of a sphere when viewed in stereoscopically.
[0020] As a virtual line L1 along the direction of fluid ejection from the opening 31 of the ejection hole 30 intersects the inner surface of the recess 22 at an acute angle, fluid flows more easily from the inner surface of the recess 22 towards the outlet 20b of the thread path 20, thereby increasing the fluid velocity toward the outlet 20b of the thread path 20. For this reason, the entanglement processing device 1 having an ejection hole 30 that ejects fluid along this virtual line L1 can efficiently impart entanglement to the thread.
[0021] Furthermore, in the first embodiment, the relationship between the depth D of the recess 22 from the lower surface 11a of the first plate member 11 and the height T of the thread path 20 may satisfy 0.2T < D < 0.5T. When the depth D of the recess 22 is 0.2T or less, the inner surface of the recess 22, which is the point where the fluid velocity decreases, approaches the center of the thread path 20 in the height direction (Z-axis direction), thus reducing the fluid velocity in the center of the thread path 20 in the height direction. When the depth D of the recess 22 is 0.5T or more, the pressure loss within the recess 22 increases, thus reducing the fluid velocity in the center of the thread path 20 in the height direction. In contrast, when the depth D of the recess 22 and the height T of the thread path 20 satisfy the relationship 0.2T < D < 0.5T, the inner surface of the recess 22 can be moved away from the center of the thread path 20 in the height direction (Z-axis direction), and the increase in pressure loss within the recess 22 can be reduced. This reduces the decrease in fluid velocity in the central part of the thread path 20 in the height direction, and as a result, entanglement can be more efficiently imparted to the yarn. The depth D of the recess 22 may be, for example, 0.14 mm to 0.6 mm. The height T of the thread path 20 may be, for example, 0.7 mm to 1.2 mm.
[0022] Furthermore, in a side cross-sectional view, the intersection point P between the concave spherical inner surface of the recess 22 and the imaginary line L1 may be located on the side of the inlet 20a of the thread path 20 that is deeper than the deepest part of the recess 22. By positioning the intersection point P on the side of the inlet 20a of the thread path 20 that is deeper than the deepest part of the recess 22, the angle α between the imaginary line L1 and the inner surface of the recess 22 can be set to a smaller acute angle, thereby increasing the fluid velocity toward the outlet 20b of the thread path 20.
[0023] <Second Embodiment> Next, the entanglement processing device 1 according to the second embodiment will be described with reference to Figure 4. Figure 4 is a schematic cross-sectional view of the entanglement processing device 1 according to the second embodiment.
[0024] As shown in Figure 4, the inner surface of the recess 22 may have a corner 22a in a side cross-sectional view. In a side cross-sectional view, the angle formed by the two sides flanking the corner 22a of the recess 22 may be in the range of 80° to 100°. By having a corner 22a with an angle of approximately 90° on the inner surface of the recess 22, the fluid flow can be blocked at the corner 22a and guided to the thread path 20 directly below the corner 22a, thereby making the fluid velocity distribution in the height direction (Z-axis direction) of the thread path 20 more uniform. As a result, entanglement can be imparted to the yarn more efficiently. Also, as shown in Figure 4, the inner surface of the recess 22 may have a gentle curve on the inlet side. In a stereoscopic view, the inner surface of the recess 22 in Figure 4 may be cylindrical on the corner 22a side and part of a sphere on the inlet 20a side of the thread path 20. The inner surface of the recess 22 on the corner portion 22a side and the entrance 20a side of the thread path 20 may have a step, and the cylinder and sphere may be connected in a smooth manner.
[0025] <Third Embodiment> Next, the entanglement processing device 1 according to the third embodiment will be described with reference to Figure 5. Figure 5 is a schematic cross-sectional view of the entanglement processing device 1 according to the third embodiment.
[0026] As shown in Figure 5, the inner surface of the recess 22 may have a corner 22b in a side cross-sectional view. The corner 22b is located closer to the inlet 20a of the thread path 20 than the intersection P with the imaginary line L1. In a side cross-sectional view, the angle formed by the two sides of the recess 22 that sandwich the corner 22b may be in the range of 80° to 100°. The fluid that collides with the intersection P via the ejection hole 30 changes direction and proceeds toward the outlet side and the inlet side. Because the inner surface of the recess 22 has a corner 22b, the fluid flow can be blocked at the corner 22b and guided to the thread path 20 directly below the corner 22b. As a result, the fluid velocity distribution in the height direction (Z-axis direction) of the thread path 20 becomes more uniform. As a result, entanglement can be imparted to the thread more efficiently. The inner surface of the recess 22 in Figure 5 may be cylindrical when viewed in stereoscopically.
[0027] <Fourth Embodiment> Next, the entanglement processing device 1 according to the fourth embodiment will be described with reference to Figure 6. Figure 6 is a schematic cross-sectional view of the area around the ejection hole 30 in the entanglement processing device 1 according to the fourth embodiment.
[0028] As shown in Figure 6, in the entanglement processing apparatus 1 according to the fourth embodiment, the ejection hole 30 may have a first hole 301 and a second hole 302. The first hole 301 opens into the thread guide 20. The second hole 302 opens into the lower surface 102 (an example of the outer surface) of the base body 10 and is connected to the first hole 301. The diameter of the second hole 302 may decrease as it approaches the first hole 301. A fluid supplied from a fluid supply source (not shown), such as air, is introduced into the first hole 301 through the second hole 302. The first hole 301 then ejects the introduced fluid into the thread guide 20 through its opening 31.
[0029] The second hole 302 is connected to the first hole 301 without any step in the width direction. That is, at the boundary between the second hole 302 and the first hole 301, the diameter of the second hole 302 and the diameter of the first hole 301 are the same. In this way, because there is no step in the width direction at the boundary between the second hole 302 and the first hole 301, fluid can be smoothly ejected from the ejection hole 30 into the thread channel 20, thereby more efficiently imparting entanglement to the yarn.
[0030] <Other Embodiments> In the first to fourth embodiments described above, an example was given in which the entire substrate 10 is made of ceramics. However, it is sufficient that the area around the thread guide 20 is made of ceramic, and other parts may be made of metal or resin. Figure 7 is a schematic cross-sectional view of the area around the ejection hole 30 in the entanglement processing apparatus 1 according to another embodiment.
[0031] As shown in Figure 7, in the entanglement processing apparatus 1 according to another embodiment, the second plate member 12 of the base body 10 has a first portion 121 for forming a thread path 20 between itself and the lower surface 11a (see Figure 3) of the first plate member 11, and a second portion 122 that is joined to the first portion 121. The first portion 121 may be made of, for example, ceramics, and the second portion 122 may be made of metal or resin. The joining of the first portion 121 and the second portion 122 may be done using an adhesive. If the second portion 122 is made of resin, the joining of the first portion 121 and the second portion 122 may be done by molding. It may also be done by screwing, fitting using surface irregularities, etc.
[0032] (Manufacturing Method) Next, the manufacturing method of the entanglement processing apparatus 1 according to the first to fourth embodiments will be described.
[0033] First, a molded body made of ceramic material is produced to form the first plate member 11 and the second plate member 12. The molded body can be produced by, for example, injection molding, 3D printing, machining, grinding, etc.
[0034] Subsequently, the entanglement processing device 1 is obtained by joining the first plate member 11 and the second plate member 12. The joining of the first plate member 11 and the second plate member 12 may be done using an adhesive. The joining of the first plate member 11 and the second plate member 12 may also be done by screwing them together, fitting them together using surface irregularities, etc. Alternatively, it may be done using resin overmolding. In other words, after combining the first plate member 11 and the second plate member 12, the surrounding area may be covered with resin to fix them in place.
[0035] As described above, the entanglement processing device according to the embodiment (for example, the entanglement processing device 1) has a base (for example, base 10), a thread guide (for example, thread guide 20), and a ejection hole (for example, ejection hole 30). The thread guide is located inside the base and guides the movement of the thread. The ejection hole is located inside the base and opens into the thread guide. The thread guide also has a recess (for example, a recess 22) on the surface (for example, the lower surface 11a of the first plate member 11) opposite to the opening of the ejection hole (for example, opening 31). In a cross-sectional view of the base perpendicular to the width direction of the thread guide, a virtual line (for example, virtual line L1) extending along the direction of fluid ejection from the opening of the ejection hole is inclined toward the entrance of the thread guide (for example, entrance 20a) than the perpendicular to the opposite surface (for example, perpendicular line L2), and intersects the inner surface of the recess at an acute angle.
[0036] Therefore, according to the entanglement processing device of the embodiment, entanglement can be efficiently imparted to the yarn.
[0037] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. Indeed, the embodiments described above can be embodied in a variety of forms. Furthermore, the embodiments described above may be omitted, replaced, or modified in various ways without departing from the scope and spirit of the appended claims.
[0038] 1 Entanglement Processing Device 10 Base 11 First Plate Member 11a, 102 Bottom Surface 12 Second Plate Member 12a, 101 Top Surface 20 Thread Guide 20a Inlet 20b Outlet 21 Wide Section 22 Recess 22a, 22b Corner Section 30 Ejection Hole 31 Opening 103, 104 Side Surface 121 First Section 122 Second Section 301 First Hole 302 Second Hole L1 Imaginary Line L2 Perpendicular Line P Intersection
Claims
1. An entanglement processing device comprising: a base body; a thread path located inside the base body for guiding the movement of a thread; and a ejection hole located inside the base body and opening into the thread path, wherein the thread path has a recess on the surface opposite to the opening of the ejection hole, and in a cross-sectional view of the base body perpendicular to the width direction of the thread path, a virtual line extending along the direction of fluid ejection from the opening of the ejection hole is inclined toward the entrance of the thread path more than the perpendicular to the opposing surface and intersects the inner surface of the recess at an acute angle.
2. The entanglement processing apparatus according to claim 1, wherein the inner surface of the recess is located closer to the exit of the thread path than the intersection with the imaginary line in the cross-sectional view, and has a corner that curves in the height direction of the thread path.
3. The entanglement processing apparatus according to claim 1, wherein the inner surface of the recess is located closer to the entrance of the thread path than the intersection with the imaginary line in the cross-sectional view, and has a corner that curves in the height direction of the thread path.
4. The entanglement processing apparatus according to claim 1, wherein the relationship between the depth D of the recess from the opposing surface and the height T of the thread path is 0.2T < D < 0.5T.
5. The entanglement processing apparatus according to claim 1, wherein the ejection hole has a first hole portion that opens into the thread path and a second hole portion that opens onto the outer surface of the base body and is connected to the first hole portion, and the second hole portion is connected to the first hole portion without a step in the width direction.