Oil recovery device, yarn processing mechanism and spinning drafting device

Abstract

The oil recovery device of the present invention recovers oil mist scattered from a yarn processing device at low cost and effectively. The oil recovery device (30) recovers oil mist scattered from a yarn processing device (20) that performs a predetermined treatment on a yarn (Y) by spraying a fluid into a yarn running space (24a) through which the yarn (Y) to which the oil is applied travels. The oil recovery device comprises: a housing (31) that houses the yarn processing device (20) and is formed with a suction port (31a); and a guide member (32) disposed inside the housing (31) and guiding a jet generated by the sprayed fluid from the yarn running space (24a) to the suction port (31a).

Description

Technical Field

[0001] The present invention relates to an oil recovery device for recovering oil mist emitted from a yarn processing device that performs a predetermined treatment on yarn by spraying a fluid into a yarn travel space in which the yarn, to which the oil has been applied, travels, and a yarn processing mechanism and a spinning drafting device equipped with the oil recovery device. Background Art

[0002] In the past, oil was sometimes applied to the yarn for the purpose of reducing friction, suppressing static electricity, improving the shape of the package, and improving the uniformity of yarn heating. In a yarn processing device that applies a prescribed treatment to the yarn by spraying a fluid into the yarn travel space where the yarn to which the oil is applied travels, a portion of the oil attached to the yarn is blown away by the fluid injection and becomes oil mist. If such oil mist is dispersed from the yarn processing device, there are risks that it may adhere to resin parts and deteriorate the resin parts, the oil droplet-like spray may adhere to the yarn and the package and reduce the yarn quality, or the surrounding area may be shrouded in white mist and worsen the on-site environment. As the yarn processing device described above, we know, for example, an interlacing device and a fine nozzle. An interlacing device is a device that applies interlacing to the yarn by spraying a fluid. A fine nozzle is a device that makes the oil applied to the yarn uniform.

[0003] To address this issue, Patent Document 1, for example, discloses a technique for directing the jet jet from the yarn travel space of an interlacing device into an air duct body, where a filter disposed within the body converts the oil mist into droplets for recovery. Furthermore, Patent Document 2 discloses a technique for suctioning floating components, such as oil mist, generated in the interlacing device.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2017-218706

[0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2017-509810

[0008] Summary of the Invention

[0009] Problems that the invention aims to solve

[0010] However, if the air duct body is only placed near the intertwining device, as in Patent Document 1, a large amount of oil mist will not flow into the air duct body, making it difficult to efficiently recover the oil mist. Furthermore, when the oil mist is recovered by suction, as in Patent Document 2, the amount of oil mist recovered depends largely on the capacity of the suction device. However, most suction devices are directly used in factories and other places, and there are limits to how much capacity can be increased. Furthermore, increasing the capacity of the suction device is extremely expensive. Summary of the Invention

[0011] In view of the above problems, an object of the present invention is to efficiently recover oil mist scattered from a yarn processing device at low cost.

[0012] Means for solving problems

[0013] The oil recovery device involved in the present invention is for recovering oil mist, which is oil mist emitted from a yarn processing device. The yarn processing device performs prescribed treatment on the yarn by spraying a fluid into a yarn travel space in which the yarn applied with oil travels. It is characterized in that it comprises: a shell that accommodates the yarn processing device and is formed with a suction port, and a guide component arranged inside the shell and guides the jet generated by spraying the fluid from the yarn travel space to the suction port.

[0014] In the present invention, a suction port is formed on the housing that houses the yarn processing device, and the oil mist scattered from the yarn processing device is recovered through the suction port. However, if the housing is simply provided, the oil mist will remain in the housing if the suction force of the suction device is insufficient. The oil mist retained around the yarn leaks out of the housing along with the accompanying flow. On the other hand, if the capacity of the suction device is enhanced in order to suppress the leakage of oil mist, it may lead to a significant increase in cost. Therefore, in the present invention, a guide component is provided to guide the jet from the yarn travel space to the suction port. In this way, the oil mist can be guided to the suction port by the force of the jet discharged from the yarn travel space, and the oil mist can be effectively recovered at a low cost.

[0015] In the present invention, the guide member may include an air duct member having an inlet for receiving the jet flow and an outlet for discharging the jet flow toward the suction port.

[0016] With this structure, the air duct component can be used to stably guide the jet flow to the suction port, thereby more effectively recovering the oil mist. In addition, the fluid ejected from the discharge port of the air duct component can be used as a suction booster at the suction port of the housing.

[0017] In the present invention, a portion of the air duct member on the discharge port side including the discharge port may have a flow path area that gradually decreases toward the discharge port side.

[0018] With this structure, the pressure of the fluid flowing toward the discharge port increases, so the force of the fluid ejected from the yarn travel space can be maintained at a certain level and discharged from the discharge port. This can enhance the suction-assisted effect of the fluid ejected from the air duct component, and further, can effectively recover the oil mist.

[0019] In the present invention, the air duct member may include a guide surface arranged in a direction intersecting an extending direction of the yarn running space, and an end portion of the guide surface on the introduction port side may be located outside the yarn running space in the extending direction.

[0020] With such a structure, it becomes easy to collect the jet flows ejected from both ends of the yarn traveling space into the interior of the air duct member.

[0021] In the present invention, a portion of the guide surface on the inlet side including the end portion on the inlet side may expand toward the outside of the yarn travelling space in the extending direction as it moves toward the discharge port side.

[0022] With such a structure, the jet flow from the yarn travelling space can be easily guided toward the discharge port by the guide surface, and flow disturbance caused by collision with the guide surface can be suppressed.

[0023] In the present invention, the guide surface may be curved so as to extend from an end portion on the inlet side to an end portion on the outlet side.

[0024] If there is a corner on the guide surface, the flow of the fluid is easily disturbed. In this regard, by making the guide surface a curved surface, the flow of the fluid can be made smooth.

[0025] In the present invention, the guide surfaces may be provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces may be plane-symmetrical with respect to a center of the yarn running space in the extending direction.

[0026] With such a structure, the flow of fluid inside the air duct component is also likely to become symmetrical and the flow is not likely to be turbulent.

[0027] In the present invention, a suction flow path communicating with the suction port may be formed between the inner surface of the housing and the outer surface of the air duct member.

[0028] With such a structure, even the oil mist that is not taken into the air duct member can be sucked from the suction port via the suction flow path, so the oil mist can be recovered more efficiently.

[0029] In the present invention, the air duct member may be movable between a distance position away from the yarn processing device and a proximity position closer to the yarn processing device than the distance position.

[0030] The closer the air duct member is positioned to the yarn processing device, the more oil mist can be recovered. However, this can become an obstacle during the yarn hooking operation to the yarn processing device. Therefore, by making the air duct member movable as described above, it is possible to achieve a balance between oil mist recovery efficiency and operability during the yarn hooking operation.

[0031] In the present invention, the housing may be provided with an opening through which the yarn passes, and an opening and closing member capable of changing an opening area of the opening may be provided.

[0032] The smaller the opening formed in the housing, the less oil mist leaks from the housing. However, this makes it difficult to pass the yarn through the opening during the yarn hooking operation on the yarn processing device. Therefore, by providing an opening and closing member at the opening, as described above, it is possible to achieve both reduced oil mist leakage and improved operability during the yarn hooking operation.

[0033] A yarn processing mechanism according to the present invention is characterized by comprising: a yarn processing device for applying a predetermined treatment to the yarn by injecting a fluid into a yarn traveling space in which the yarn, to which oil has been applied, travels; and any of the above-mentioned oil recovery devices.

[0034] With such a yarn processing mechanism, as already described, the oil mist scattered from the yarn processing device can be efficiently recovered at low cost.

[0035] In the present invention, the yarn processing device may include: a yarn processing portion forming the yarn traveling space, a supporting component supporting the yarn processing portion, and a jet guide component arranged on the outside of the yarn processing portion in the extension direction of the yarn traveling space; the jet guide component stands upright from the supporting component toward the guide component.

[0036] According to such a configuration, the jet flow from the yarn travelling space can be guided to the guide member by the jet flow guide member, and the oil mist can be recovered more efficiently.

[0037] In the present invention, the jet flow guide member may be erected from the support member so as to be inclined toward the outside of the yarn travelling space in the extending direction.

[0038] With such a configuration, the jet flow from the yarn travelling space can be easily guided to the guide member by the jet flow guide member, and thus turbulence of the flow due to collision with the jet flow guide member can be suppressed.

[0039] In the present invention, the jet flow guide member may be formed with a guide groove into which the yarn is inserted.

[0040] According to such a configuration, since the jet flow guide member can be used as the yarn guide member, an increase in the number of parts can be suppressed.

[0041] A spinning draft device according to the present invention is characterized by comprising an oil applying device for applying oil to the yarn, and any of the above-mentioned yarn processing mechanisms arranged downstream of the oil applying device in the yarn running direction.

[0042] According to such a spinning draft device, as already described, the oil mist scattered from the yarn processing device can be efficiently recovered at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of a spinning and drafting device including the interlacing mechanism according to the present embodiment.

[0044] Figure 2 It is a three-dimensional diagram of the interlacing device.

[0045] Figure 3 It is a cross-sectional view of an intertwining application mechanism equipped with an oil recovery device.

[0046] Figure 4 It is a cross-sectional view of an intertwining application mechanism equipped with an oil recovery device.

[0047] Figure 5 A three-dimensional diagram of the air duct components.

[0048] Figure 6 A diagram showing the flow of air in the entanglement applying mechanism.

[0049] Description of Reference Signs

[0050] 1—spinning and stretching device; 2—oil guide (oil applying device); 5—interlacing applying mechanism (yarn processing mechanism); 20—interlacing device (yarn processing device); 21—support component; 22—interlacing portion (yarn processing portion); 23—yarn guiding component (jet guiding component); 23a—guide groove; 24a—yarn traveling space; 30—oil recovery device; 31—housing; 31a—suction port; 31b, 31c—opening portion; 33, 34—opening and closing component; 32—air duct component (guide component); 32a—inlet; 32b—discharge port; 35, 36—guide surface; 49—suction flow path; Y—yarn. DETAILED DESCRIPTION

[0051] (Spinning drafting device)

[0052] Embodiments of the present invention will be described. Figure 1 Schematic diagram of a spinning and drafting device equipped with an interlacing mechanism according to this embodiment. Figure 1 The up-down, front-back, and rear-back directions shown in FIG are defined as the up-down, front-back, and rear-back directions of the spinning and drafting device 1, respectively.

[0053] The spinning drafting device 1 drafts a plurality of synthetic fiber yarns Y spun from the spinning device 100 and winds them onto a plurality of bobbins B to form a plurality of packages P. The spinning drafting device 1 includes an oil guide 2 (equivalent to the oil application device of the present invention), a stretching device 3, a first drafting roller 4, a entanglement application mechanism 5 (equivalent to the yarn processing mechanism of the present invention), a second drafting roller 6, and a winding device 7. In the spinning device 100, a polymer supplied from a polymer supply device (not shown) such as a gear pump is extruded downward through a spray nozzle (not shown).

[0054] The plurality of yarns Y spun from the spinning device 100 are Figure 1 The yarns Y are arranged in a direction perpendicular to the paper surface and travel along the yarn path along the oil guide 2, the stretching device 3, the first drafting roller 4, the interlacing applying mechanism 5, and the second drafting roller 6. The plurality of yarns Y are then distributed from the second drafting roller 6 in the front-to-rear direction and are respectively wound onto a plurality of bobbins B in the winding device 7.

[0055] The multiple yarns Y spun from the spinning device 100 are lubricated by the lubricant guide 2 and then fed to the stretching device 3. In this embodiment, the lubricant guide 2 is positioned between the spinning device 100 and the stretching device 3 in the direction of yarn travel. However, the lubricant guide 2 can be positioned at any location upstream of the interlacing device 20 (described later) in the direction of yarn travel. The stretching device 3 comprises multiple heating rollers (not shown) housed in a heat-insulating box. The stretching device 3 utilizes the multiple heating rollers to heat and stretch the multiple yarns Y spun from the spinning device 100.

[0056] The plurality of yarns Y stretched by the stretching device 3 are fed to the winding device 7 by the first drafting roller 4 and the second drafting roller 6. Between the first drafting roller 4 and the second drafting roller 6, there is provided an interlacing mechanism 5 having an interlacing device 20 (equivalent to the yarn processing device of the present invention) for interlacing the plurality of filaments constituting the yarn Y. In addition, the interlacing mechanism 5 can be arranged at any position downstream of the oil guide 2 in the direction of yarn travel. For example, it can be arranged as follows: Figure 1 As shown by the dotted line, an interlacing mechanism 5 is disposed between the stretching device 3 and the first drafting roller 4. The interlacing device 20 and the interlacing mechanism 5 will be described in detail later.

[0057] The winding device 7 includes a body 11, a turret 12, two bobbin holders 13, a support frame 14, a contact roller 15, and a traverse device 16. The winding device 7 rotates the bobbin holder 13 to simultaneously wind the plurality of yarns Y fed from the second drafting roller 6 onto a plurality of bobbins B to form a plurality of packages P.

[0058] A disc-shaped turntable 12 is mounted on the machine body 11. The turntable 12 is driven by a motor (not shown). Two cylindrical bobbin holders 13 are cantilevered on the turntable 12, extending in the front-to-back direction. Multiple bobbins B are arranged in a row along their axial direction (front-to-back direction) on each bobbin holder 13. Rotation of the turntable 12 allows the two bobbin holders 13 to move between an upper winding position and a lower retracted position.

[0059] The support frame 14 is a member extending in the front-to-back direction, with its rear end fixed to the machine body 11. A roller support member 17 extending in the front-to-back direction is mounted on the lower portion of the support frame 14 so as to be movable up and down relative to the support frame 14. A contact roller 15 extending in the front-to-back direction is rotatably supported on the roller support member 17. The contact roller 15 applies a predetermined contact pressure to the package P, thereby adjusting the shape of the package P.

[0060] A traverse device 16 is disposed on the roller support member 17. The traverse device 16 includes a plurality of traverse guides 16a arranged in a front-to-rear direction. The plurality of traverse guides 16a are driven by a motor (not shown) to reciprocate in the front-to-rear direction. As the traverse guides 16a reciprocate with the yarn Y held thereon, the yarn Y is wound onto the corresponding bobbin B while swinging back and forth about the fulcrum guide 18.

[0061] (Interlacing device)

[0062] Figure 2 It is a three-dimensional diagram of the interlacing device 20. Figure 2 The extending direction in the text is the direction in which the yarn travel space 24a described later is extended. The arrangement direction is the direction in which the multiple yarns Y are arranged, which is a direction perpendicular to the extending direction. The height direction is a direction perpendicular to both the extending direction and the arrangement direction. In this specification, for convenience, one side of the height direction ( Figure 2 The upper side) is called the upper side, and the other side ( Figure 2 However, the upper and lower sides in the height direction are not necessarily the same as the upper and lower sides in the vertical direction ( Figure 1 The upper and lower sides shown are consistent.

[0063] The interlacing device 20 uses compressed air (an example of a fluid in the present invention) to interlace the yarn Y. The interlacing device 20 comprises a support member 21, an interlacing section 22 (equivalent to the yarn processing section in the present invention), and two yarn guide members 23 (equivalent to the jet guide member in the present invention). The support member 21 supports the interlacing section 22 and the two yarn guide members 23. The multiple interlacing sheets 24 and the two yarn guide members 23 that constitute the interlacing section 22 stand on the same side (upper side) of the support member 21 in the height direction.

[0064] The interlacing portion 22 has a structure in which a plurality of interlacing pieces 24 are arranged in an arrangement direction. In each interlacing piece 24, a yarn running space 24a is passed through along the extension direction, and the yarn Y runs in the yarn running space 24a. A yarn insertion channel 24b is formed in the upper portion between the adjacent interlacing pieces 24 for inserting the yarn Y into the yarn running space 24a. In the central portion of the interlacing piece 24 in the extension direction, a jet port (not shown) is formed for spraying compressed air toward the yarn running space 24a. The yarn Y running in the yarn running space 24a is subjected to the action of the compressed air sprayed from the jet port and is interlaced. The sprayed compressed air is ejected from both ends of the yarn running space 24a as a jet.

[0065] The two yarn guide members 23 are spaced apart from the interlacing portion 22 in the extension direction and are respectively arranged on both sides of the interlacing portion 22. The yarn guide members 23 have a wall-like shape that stands up from the support member 21 and extends along the arrangement direction. The yarn guide members 23 do not stand up from the support member 21 toward the top, but rather stand up from the support member 21 toward the outside of the interlacing portion 22 in the extension direction. A plurality of guide grooves 23a are formed on the yarn guide member 23 at equal intervals along the arrangement direction. The guide grooves 23a are in the shape of slits that are open upward. The yarn paths of the plurality of yarns Y in the interlacing device 20 are determined by inserting the plurality of yarns Y into the corresponding guide grooves 23a.

[0066] in addition, Figure 2 The figure is omitted, and the yarn hanging auxiliary component 25 used in the yarn hanging operation is provided in the interlacing device 20 (refer to Figure 3 and Figure 4 ). The yarn hanging auxiliary component 25 is a round rod-shaped component extending in the arrangement direction. One end of the yarn hanging auxiliary component 25 is fixed to the arm 26, and is mounted on the support component 21 through the arm 26. In this embodiment, the yarn hanging auxiliary component 25 is supported by a cantilever, but it can also be a two-point supported structure. The arm 26 can swing around the fulcrum 27. As a result, the yarn hanging auxiliary component 25 can swing Figure 3 The lower position shown is the same as Figure 4 Movement between positions shown on the upper side.

[0067] (Oil recovery device)

[0068] In the interlacing device 20 structured as described above, some of the oil adhering to the yarn Y is blown away by the compressed air injection, forming an oil mist. If this oil mist is dispersed from the interlacing device 20 along with the jet from the yarn travel space 24a, there is a risk that it may adhere to resin components, degrading them, or adhere to the yarn Y or package P, degrading yarn quality. Therefore, the interlacing mechanism 5 is provided with an oil recovery device 30 for recovering the oil mist dispersed from the interlacing device 20.

[0069] Figure 3 and Figure 4 It is a cross-sectional view of the intertwining mechanism 5 including the oil recovery device 30 , and more specifically, a cross-sectional view taken along a section perpendicular to the arrangement direction. Figure 3 The figure shows the state where the air duct component 32 described later is located close to the interlacing device 20. Figure 4 The state in which the air duct component 32 is located away from the interlacing device 20 is shown. Figure 5 It is a three-dimensional view of the air duct component 32.

[0070] like Figure 3 and Figure 4 As shown, the oil recovery device 30 has a housing 31 and an air duct component 32 (equivalent to the guide component of the present invention). The housing 31 is a box-shaped component that accommodates the intertwining device 20 and the air duct component 32. A suction port 31a connected to the suction device 101 is formed at the upper end of the housing 31. The suction port 31a is a nozzle extending in the height direction, which generates an upward suction force. The intertwining device 20 is arranged at the lower part of the housing 31, and the air duct component 32 is arranged on the upper side of the intertwining device 20. The intertwining device 20 is fixed, but the air duct component 32 can be moved in the height direction as described later. A suction flow path 49 connected to the suction port 31a is formed between the inner surface of the housing 31 and the outer surface of the air duct component 32. The oil recovery device 30 sucks and recovers the oil mist scattered from the intertwining device 20 from the suction port 31a via the air duct component 32 or the suction flow path 49.

[0071] The housing 31 has an opening 31b for introducing the yarns Y into the housing 31 and an opening 31c for leading the yarns Y out of the housing 31. The openings 31b and 31c are provided with opening and closing members 33 and 34 that can change the opening area.

[0072] The air duct member 32 has the function of guiding the jet from the yarn traveling space 24a of the interlacing device 20 to the suction port 31a, and is arranged to cover the interlacing device 20. Figure 5As shown, the air duct member 32 is a hollow member formed by four side surfaces 35-38 and extending in the vertical direction. An inlet 32a for drawing in the jet flow is formed at the lower end of the air duct member 32, and an outlet 32b for discharging the jet flow toward the suction port 31a is formed at the upper end. When viewed from the height, the inlet 32a completely encloses the interlacing device 20. The outlet 32b is formed opposite the suction port 31a and has a smaller opening area than the inlet 32a.

[0073] The pair of side surfaces 35, 36 facing each other in the extension direction are equivalent to the guide surfaces of the present invention. Hereinafter, they are referred to as guide surfaces 35, 36. The guide surfaces 35, 36 are arranged in a direction intersecting the extension direction of the yarn running space 24a. The pair of side surfaces 37, 38 facing each other in the arrangement direction are planes parallel to the plane orthogonal to the arrangement direction. Figure 5 As shown, a slide 39 is fixed to the side 38. A track member 40 extending in the height direction is fixed to the inner surface of the housing 31, and the slide 39 can be slidably engaged with the track member 40. As a result, the air duct member 32 can be moved closer to the position ( Figure 3 Position shown) and away from position ( Figure 4 The movement of the air duct component 32 can be performed manually by an operator, or a drive device can be provided to move the air duct component 32.

[0074] A positioning mechanism is preferably provided to position the air duct component 32 in a close position and a distant position. For example, positioning in the close position can be achieved by abutting a stopper (not shown) provided on the interlacing device 20 against the lower end of the air duct component 32. Positioning in the distant position can be achieved by engaging the housing 31 and the air duct component 32 using an engaging mechanism such as a latch. Of course, other positioning mechanism structures may also be used.

[0075] The pair of guide surfaces 35 and 36 are curved surfaces when viewed from the arrangement direction and are plane-symmetrical about the center of the interlacing device 20 (yarn travel space 24a) in the extension direction. When viewed from the extension direction, a portion of the lower end of the guide surfaces 35 and 36 overlaps with the yarn guide component 23. Specifically, in the height direction, the lower ends of the guide surfaces 35 and 36 are located below the upper end of the yarn guide component 23 and above the lower end of the guide groove 23a. In the extension direction, the lower ends of the guide surfaces 35 and 36 are located outside the yarn travel space 24a and further outside the upper end of the yarn guide component 23. Therefore, it is easy to collect the jet from the yarn travel space 24a into the interior of the air duct component 32.

[0076] A portion of the lower side (on the side of the inlet 32a) of the guide surfaces 35 and 36, including the lower end portion, is formed into first curved portions 35a and 36a, which expand outwardly of the intertwining portion 22 in the extension direction as they move upwardly (on the side of the outlet 32b). The first curved portions 35a and 36a are curved so as to bulge outwardly in the extension direction. A portion of the upper side (on the side of the upper end portion) of the guide surfaces 35 and 36 is formed into second curved portions 35b and 36b, which move closer to each other as they move upwardly. The second curved portions 35b and 36b are curved so as to be recessed inwardly in the extension direction. The first curved portion 35a is continuous with the second curved portion 35b, and the first curved portion 36a is continuous with the second curved portion 36b.

[0077] The first curved portions 35a and 36a gradually increase the flow path area (the area within the duct member 32 in a cross-section perpendicular to the height direction) toward the upper side of the duct member 32 until midway through. Furthermore, the second curved portions 35b and 36b gradually decrease the flow path area toward the upper side of the duct member 32 from midway through. Furthermore, the tangential direction of the lower end of the first curved portions 35a and 36a is substantially the same as the inclination of the yarn guide member 23.

[0078] (Yarn hanging operation)

[0079] Reference Figure 3 and Figure 4 The procedure for performing the yarn hanging operation on the interlacing device 20 housed in the housing 31 will be described. Figure 3 and Figure 4 The surface on the near side of the shell 31 is a door that can be opened and closed (not shown in the figure). By opening the door, the yarn hanging operation can be performed on the interlacing device 20.

[0080] When starting the yarn hanging operation, Figure 4 As shown, the air duct member 32 is moved to a position away from the interlacing device 20. Then, the opening and closing members 33 and 34 are opened, and the yarn hooking auxiliary member 25 is simultaneously moved to the upper position. Opening the opening and closing members 33 and 34 maximizes the opening area of the openings 31b and 31c, making it easier to pass multiple yarns Y through the openings 31b and 31c during the yarn hooking operation.

[0081] Next, a plurality of yarns Y are wound onto the first drafting roller 4 (see FIG. Figure 1 ) and then introduced into the interior of the housing 31 from the opening 31b. Then, the plurality of yarns Y are hooked on the yarn hooking auxiliary member 25, led out from the opening 31c to the outside of the housing 31, and wound onto the second drafting roller 6. In this state, if the yarn hooking auxiliary member 25 is lowered to the lower position, as shown in FIG. Figure 3 As shown, a plurality of yarns Y are inserted into the guide grooves 23a of the yarn guide member 23.

[0082] Next, the air duct member 32 is lowered to a position close to the interlacing device 20, covering the interlacing device 20 with the air duct member 32. Finally, the yarn hooking operation to the interlacing device 20 is completed by closing the opening and closing members 33 and 34. When the opening and closing members 33 and 34 are closed, the opening areas of the openings 31b and 31c are the minimum areas required for the passage of multiple yarns Y, thereby preventing leakage of oil mist.

[0083] (Air flow)

[0084] Figure 6 The diagram illustrates the flow of air in the interlacing mechanism 5, with arrows indicating the main air flow. The jets ejected from both ends of the yarn travel space 24a of the interlacing device 20 flow directly in the extension direction and hit the yarn guide member 23. Due to the presence of the support member 21, the jets that hit the yarn guide member 23 do not flow downward, but mostly flow upward, flowing into the interior of the air duct member 32 from the inlet 32a. At this time, since the yarn guide member 23 is tilted diagonally upward and outward, the jets that hit the yarn guide member 23 are easily guided upward, thus preventing flow disturbances caused by hitting the yarn guide member 23.

[0085] The jet flow into the air duct component 32 flows primarily along the guide surfaces 35 and 36. Since the first curved portions 35a and 36a expand outward, the flow diagonally upward and outward along the yarn guide component 23 can be smoothly directed upward. Since the distance between the second curved portions 35b and 36b gradually narrows toward the discharge port 32b, the flow path area within the air duct component 32 gradually decreases. Therefore, the air pressure increases toward the discharge port 32b, maintaining a certain level of force when ejected from the yarn travel space 24a, and the air is discharged unimpeded from the discharge port 32b toward the suction port 31a. Since this air ejected from the discharge port 32b of the air duct component 32 can be used as a suction assist at the suction port 31a of the housing 31, the oil mist can be efficiently recovered.

[0086] Meanwhile, some of the oil mist released from the interlacing device 20 leaks out of the air duct member 32 through the gap between the yarn guide member 23 and the air duct member 32, or through the guide groove 23a of the yarn guide member 23. However, since the suction flow path 49 is formed between the housing 31 and the air duct member 32, even the oil mist that is not drawn into the air duct member 32 is guided to the suction port 31a along with the flow of air in the suction flow path 49 and recovered. At this time, since the air is discharged unimpeded from the exhaust port 32b as described above, the air in the suction flow path 49 can be sucked in by negative pressure, thereby effectively recovering the oil mist floating in the suction flow path 49.

[0087] (Effect)

[0088] In the present embodiment, a suction port 31a is formed on the housing 31 that accommodates the interlacing device 20, and the oil mist flying out from the interlacing device 20 is recovered through the suction port 31a. However, if the housing 31 is simply provided, the oil mist will be retained in the housing 31 when the suction force of the suction device 101 is insufficient. The oil mist retained around the yarn Y leaks out to the outside of the housing 31 along with the accompanying flow. If the capacity of the suction device 101 is enhanced in order to suppress the leakage of the oil mist, it may lead to a substantial increase in costs. Therefore, in the present embodiment, a guide component (air duct component 32) is provided to guide the jet from the yarn travel space 24a to the suction port 31a. In this way, the oil mist can be guided to the suction port 31a by utilizing the force of the jet discharged from the yarn travel space 24a, and the oil mist can be effectively recovered at a low cost.

[0089] In this embodiment, the guide member is an air duct member 32 having an inlet 32a for receiving the jet flow and an outlet 32b for discharging the jet flow toward the suction port 31a. This configuration allows the air duct member 32 to stably guide the jet flow toward the suction port 31a, thereby enabling more efficient oil mist recovery. Furthermore, the air ejected from the outlet 32b of the air duct member 32 can be used to assist suction at the suction port 31a of the housing 31.

[0090] In this embodiment, the portion of the air duct member 32 on the discharge outlet 32b side, including the discharge outlet 32b, has a flow path area that gradually decreases toward the discharge outlet 32b. This configuration increases the pressure of the air flowing toward the discharge outlet 32b, allowing the air to be discharged from the discharge outlet 32b while maintaining a certain level of force when ejected from the yarn traveling space 24a. This enhances the suction assist effect provided by the air ejected from the air duct member 32, enabling more efficient recovery of oil mist.

[0091] In this embodiment, the air duct member 32 includes guide surfaces 35 and 36 arranged in an orientation intersecting the direction in which the yarn running space 24a extends. The ends of the guide surfaces 35 and 36 on the inlet 32a side are located outside the yarn running space 24a in the extending direction. This structure facilitates the collection of the jet stream ejected from both ends of the yarn running space 24a into the interior of the air duct member 32.

[0092] In this embodiment, a portion of the guide surfaces 35, 36 on the inlet 32a side, including the end portion on the inlet 32a side, extends outward in the direction of extension of the yarn running space 24a as it moves toward the outlet 32b. This configuration facilitates the guide surfaces 35, 36 in guiding the jet from the yarn running space 24a toward the outlet 32b, thereby preventing flow disturbances caused by the jet hitting the guide surfaces 35, 36.

[0093] In this embodiment, guide surfaces 35 and 36 are curved from the end on the inlet 32a side to the end on the outlet 32b side. If guide surfaces 35 and 36 had corners, the air flow would be easily disturbed there. In this regard, by making guide surfaces 35 and 36 curved, the air flow can be smoothed.

[0094] In this embodiment, the pair of guide surfaces 35, 36 are plane-symmetrical about the center of the extending direction of the yarn running space 24a. With such a structure, the flow of air inside the air duct member 32 is also likely to become symmetrical and the flow is less likely to become turbulent.

[0095] In this embodiment, a suction flow path 49 communicating with the suction port 31a is formed between the inner surface of the housing 31 and the outer surface of the air duct member 32. With this structure, even oil mist that is not drawn into the air duct member 32 is sucked from the suction port 31a via the suction flow path 49, enabling more efficient recovery of the oil mist.

[0096] In this embodiment, the air duct member 32 is movable between a position away from the interlacing device 20 and a position closer to the interlacing device 20. The closer the air duct member 32 is positioned to the interlacing device 20, the more oil mist can be recovered. However, this would obstruct the yarn hooking operation to the interlacing device 20. Therefore, by making the air duct member 32 movable as described above, both oil mist recovery efficiency and yarn hooking operability can be achieved.

[0097] In this embodiment, the housing 31 is formed with openings 31b and 31c through which the yarn Y passes, and opening and closing components 33 and 34 are provided to adjust the opening area of the openings 31b and 31c. The smaller the openings 31b and 31c formed in the housing 31, the less oil mist leaks from the housing 31. However, this makes it difficult to pass the yarn Y through the openings 31b and 31c during the yarn hooking operation on the interlacing device 20. Therefore, by providing the openings 31b and 31c as described above, it is possible to achieve both reduced oil mist leakage and improved operability during the yarn hooking operation.

[0098] In this embodiment, the interlacing device 20 includes an interlacing portion 22 defining a yarn travel space 24a, a support member 21 supporting the interlacing portion 22, and a jet guide member (yarn guide member 23) disposed outside the interlacing portion 22 in the direction in which the yarn travel space 24a extends. The yarn guide member 23 extends upward from the support member 21 toward the guide member (air duct member 32). With this structure, the jet guide member (yarn guide member 23) can be used to guide the jet from the yarn travel space 24a toward the guide member (air duct member 32), thereby enabling more efficient recovery of oil mist.

[0099] In this embodiment, the jet flow guide member (yarn guide member 23) is inclined and erected toward the outside of the yarn running space 24a in the extending direction from the support member 21. With this structure, the jet flow from the yarn running space 24a is easily guided by the jet flow guide member (yarn guide member 23) toward the guide member (air duct member 32), and flow disturbance caused by collision with the jet flow guide member (yarn guide member 23) can be suppressed.

[0100] In this embodiment, the jet guide member (yarn guide member 23) is formed with a guide groove 23a for inserting the yarn Y. With this structure, the jet guide member can be used as the yarn guide member, thereby suppressing an increase in the number of parts.

[0101] (Other embodiments)

[0102] Modifications in which various changes are added to the above-described embodiment will be described below.

[0103] The specific structure of the housing 31 in the above embodiment can be modified as appropriate. For example, the suction port 31a may be formed at a location other than the upper end of the housing 31. Furthermore, multiple suction ports 31a may be formed. Furthermore, it is not essential to provide the openings 31b and 31c with the openings 33 and 34.

[0104] The specific structure of the air duct component 32 of the above embodiment can be changed appropriately. For example, it is not necessary for the guide surfaces 35 and 36 of the air duct component 32 to be curved, and they can also be flat surfaces or bent surfaces. In addition, the side surfaces 37 and 38 of the air duct component 32 can also be curved surfaces. Moreover, the air duct component 32 can be a straight cylindrical or square cylindrical shape, or a component that is hollow inside a truncated cone or a square cone, or a shape like a tube that is bent in the middle. The direction in which the air duct component 32 extends can also be changed appropriately. In addition, the configuration of the exhaust port 32b in the air duct component 32 can be changed appropriately, but it is preferred that the exhaust port 32b is arranged relative to the suction port 31a of the shell 31.

[0105] In the above embodiment, the air duct member 32 is movable, but this is not essential as long as the yarn can be hung on the interlacing device 20. Furthermore, the air duct member 32 may be divided into multiple sections, or a portion of the inlet 32a or outlet 32b side may be branched into multiple paths.

[0106] In the above embodiment, the guide member of the present invention is the air duct member 32, but the guide member may also be in other forms. For example, the guide member may be composed of a single or multiple guide plates (such as guide surfaces 35, 36).

[0107] In the above embodiment, the yarn guide member 23 of the interlacing device 20 is an obliquely raised member, but it may also be raised vertically from the support member 21. Furthermore, the yarn guide member 23 is not limited to a plate-shaped member, and may be a variety of protruding shapes raised from the support member 21.

[0108] In the above-described embodiment, the spinning draft device 1 includes the stretching device 3. However, the present invention can also be applied to a spinning draft device that does not include the stretching device 3.

[0109] In the above embodiment, the yarn processing device of the present invention is described as a case where the interlacing device 20 is used. However, the oil recovery device involved in the present invention can also be applied to other yarn processing devices. As other yarn processing devices, for example, a fine nozzle that evens out the oil applied to the yarn can be cited. In addition, in the above embodiment, an example of fluid being ejected from both ends of the yarn travel space 24a is described, but the yarn processing device of the present invention can also be a device that ejects fluid from one end of the yarn travel space 24a. In this case, the guide surface and the jet guide component of the present invention can also be provided only on the side where the fluid is ejected from the yarn travel space 24a.

Claims

1. An oil recovery device for recovering oil mist emitted from a yarn processing device, wherein the yarn processing device performs a process of entanglement and / or homogenizing the oil applied to the yarn by spraying a fluid into a yarn travel space in which the yarn is traveled, characterized in that: The invention comprises: a housing for accommodating the yarn processing device and having a suction port and an opening through which the yarn passes; and a guide member disposed inside the housing away from the suction port and the opening, the guide member guiding a jet generated by injecting the fluid from the yarn traveling space to the suction port; The guide component is an air duct component having an inlet for receiving the jet and an outlet for discharging the jet toward the suction port; the air duct component has a guide surface arranged in a direction intersecting with the extension direction of the yarn traveling space, and the end of the guide surface on the inlet side is located outside the yarn traveling space in the extension direction; a part of the guide surface on the inlet side including the end on the inlet side extends toward the outside of the yarn traveling space in the extension direction as it moves toward the outlet side.

2. The oil recovery device according to claim 1, characterized in that: A portion of the air duct member on the discharge port side including the discharge port has a flow path area that gradually decreases toward the discharge port side.

3. The oil recovery device according to claim 1, wherein: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

4. The oil recovery device according to claim 2, characterized in that: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

5. The oil recovery device according to claim 1, wherein: The guide surfaces are provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces are symmetrical with respect to a center plane of the yarn running space in the extending direction.

6. The oil recovery device according to claim 2, characterized in that: The guide surfaces are provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces are symmetrical with respect to a center plane of the yarn running space in the extending direction.

7. The oil recovery device according to claim 3, characterized in that: The guide surfaces are provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces are symmetrical with respect to a center plane of the yarn running space in the extending direction.

8. The oil recovery device according to claim 4, characterized in that: The guide surfaces are provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces are symmetrical with respect to a center plane of the yarn running space in the extending direction.

9. The oil recovery device according to any one of claims 1 to 8, wherein: A suction flow path communicating with the suction port is formed between the inner surface of the housing and the outer surface of the air duct member.

10. The oil recovery device according to any one of claims 1 to 8, wherein: The air duct member is movable between a distance position away from the yarn processing device and a proximity position closer to the yarn processing device than the distance position.

11. The oil recovery device according to claim 9, wherein: The air duct member is movable between a distance position away from the yarn processing device and a proximity position closer to the yarn processing device than the distance position.

12. The oil recovery device according to any one of claims 1 to 8, wherein: The oil recovery device is provided with an opening and closing member capable of changing an opening area of the opening.

13. The oil recovery device according to claim 9, wherein: The oil recovery device is provided with an opening and closing member capable of changing an opening area of the opening.

14. The oil recovery device according to claim 10, wherein: The oil recovery device is provided with an opening and closing member capable of changing an opening area of the opening.

15. The oil recovery device according to claim 11, wherein: The oil recovery device is provided with an opening and closing member capable of changing an opening area of the opening.

16. An oil recovery device for recovering oil mist emitted from a yarn processing device, wherein the yarn processing device performs a process of entanglement and uniformizing the oil applied to the yarn by spraying a fluid into a yarn travel space in which the yarn is traveled, characterized in that: The invention comprises: a housing for accommodating the yarn processing device and having a suction port and an opening through which the yarn passes; and a guide member disposed inside the housing away from the suction port and the opening, the guide member guiding a jet generated by injecting the fluid from the yarn traveling space to the suction port; The guide component is an air duct component having an inlet for receiving the jet and an outlet for discharging the jet toward the suction port; the air duct component is movable between a distance position away from the yarn processing device and a close position closer to the yarn processing device than the distance position.

17. The oil recovery device according to claim 16, wherein: A portion of the air duct member on the discharge port side including the discharge port has a flow path area that gradually decreases toward the discharge port side.

18. The oil recovery device according to claim 16, wherein: The air duct member includes a guide surface arranged in a direction intersecting an extending direction of the yarn running space, and an end portion of the guide surface on the introduction port side is located outside the yarn running space in the extending direction.

19. The oil recovery device according to claim 17, wherein: The air duct member includes a guide surface arranged in a direction intersecting an extending direction of the yarn running space, and an end portion of the guide surface on the introduction port side is located outside the yarn running space in the extending direction.

20. The oil recovery device according to claim 18, wherein: A portion of the guide surface on the inlet side including the end portion on the inlet side expands toward the outside of the yarn travelling space in the extending direction as it moves toward the discharge port side.

21. The oil recovery device according to claim 19, wherein: A portion of the guide surface on the inlet side including the end portion on the inlet side expands toward the outside of the yarn travelling space in the extending direction as it moves toward the discharge port side.

22. The oil recovery device according to claim 18, wherein: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

23. The oil recovery device according to claim 19, wherein: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

24. The oil recovery device according to claim 20, wherein: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

25. The oil recovery device according to claim 21, wherein: The guide surface is curved so as to extend from an end portion on the introduction port side to an end portion on the discharge port side.

26. The oil recovery device according to any one of claims 18 to 25, characterized in that: The guide surfaces are provided in pair on both sides of the yarn running space in the extending direction, and the pair of guide surfaces are plane-symmetrical with respect to the center of the yarn running space in the extending direction.

27. The oil recovery device according to any one of claims 16 to 25, characterized in that: A suction flow path communicating with the suction port is formed between the inner surface of the housing and the outer surface of the air duct member.

28. The oil recovery device according to claim 26, wherein: A suction flow path communicating with the suction port is formed between the inner surface of the housing and the outer surface of the air duct member.

29. A yarn processing mechanism, characterized in that: A yarn processing device comprising: a yarn processing device for applying a fluid to a yarn running space in which the yarn, to which the oil is applied, runs, thereby entangles the yarn and / or makes the oil applied to the yarn uniform; and an oil recovery device according to any one of claims 1 to 28.

30. The yarn processing mechanism according to claim 29, wherein: The yarn processing device includes: a yarn processing portion forming the yarn traveling space, a supporting member supporting the yarn processing portion, and a jet guide member arranged on the outside of the yarn processing portion in the extending direction of the yarn traveling space; the jet guide member stands upright from the supporting member toward the guide member.

31. The yarn processing mechanism according to claim 30, wherein: The jet flow guide member stands from the support member so as to be inclined toward the outside of the yarn travelling space in the extending direction.

32. The yarn processing mechanism according to claim 30 or 31, characterized in that The jet flow guide member is formed with a guide groove into which the yarn is inserted.

33. A yarn processing mechanism, characterized in that: The invention also provides a yarn processing device according to claim 1, wherein the yarn processing device is provided with a yarn processing portion and a support portion for supporting the yarn processing portion. The yarn processing device is provided with a yarn processing portion and a support portion for supporting the yarn processing portion. The yarn processing device is provided with a yarn processing portion and a support portion for supporting the yarn processing portion. The yarn processing device is provided with a yarn processing portion and a support portion for supporting the yarn processing portion. The yarn processing portion ...

34. A spinning and drafting device, characterized in that: A yarn processing mechanism according to any one of claims 29 to 33 is provided, comprising: an oil applying device for applying oil to a yarn; and the yarn processing mechanism is arranged downstream of the oil applying device in a yarn running direction.

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