CN114182402A

CN114182402A - Oil recovery device, yarn processing mechanism, and spinning draft device

Info

Publication number: CN114182402A
Application number: CN202110957352.6A
Authority: CN
Inventors: 米仓踏青
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2020-09-14
Filing date: 2021-08-18
Publication date: 2022-03-15
Also published as: JP2022047628A; JP7549999B2; EP3967794A1

Abstract

The invention provides an oil recovery device which can effectively recover oil mist scattered from a yarn processing device at low cost. An oil recovery device (30) for recovering oil mist scattered from a yarn processing device (20) that performs a predetermined process on a yarn (Y) by injecting a fluid into a yarn running space (24a) in which the yarn (Y) to which the oil has been applied runs, the oil recovery device comprising: the yarn processing device comprises a housing (31) for accommodating the yarn processing device (20) and having a suction port (31a), and a guide member (32) arranged inside the housing (31) and guiding a jet flow generated by a jet fluid from a yarn running space (24a) to the suction port (31 a).

Description

Oil recovery device, yarn processing mechanism, and spinning draft device

Technical Field

The present invention relates to an oil recovery device that recovers oil mist that is scattered from a yarn processing device that performs a predetermined process on a yarn by injecting a fluid into a yarn traveling space where the yarn to which an oil has been applied travels, and to a yarn processing mechanism and a spinning draft device provided with the oil recovery device.

Background

Conventionally, an oil is sometimes applied to a yarn for the purpose of reducing friction, suppressing static electricity, improving the shape of a package, improving the uniformity of yarn heating, and the like. In a yarn processing device for performing a predetermined process on a yarn by injecting a fluid into a yarn running space where the yarn to which an oil agent is applied runs, a part of the oil agent adhering to the yarn is blown off by the injected fluid to become an oil mist. If such oil mist is scattered from the yarn processing apparatus, the oil mist may adhere to the resin component to deteriorate the resin component, the oil-dropped mist may adhere to the yarn or package to deteriorate the yarn quality, or the surrounding area may be covered with white mist to deteriorate the field environment. As the yarn processing apparatus described above, for example, a crosser, a fine nozzle, and the like are known. The interlacing device is a device that applies interlacing to the yarn by jetting a fluid. The fine nozzle is a device for homogenizing the finish applied to the yarn.

In order to solve the above problem, for example, patent document 1 discloses a technique of guiding a jet flow ejected from a yarn running space of a crosser to an air duct body, and recovering oil mist by making oil droplets with a filter provided inside the air duct body. Further, patent document 2 discloses a technique for sucking floating components such as oil mist generated in the air-handling apparatus.

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 2017-218706

Patent document 2: japanese patent laid-open publication No. 2017-509810

Summary of the invention

Problems to be solved by the invention

However, as in patent document 1, the air duct body is disposed only in the vicinity of the crosser, and a large amount of oil mist that does not flow into the air duct body exists, and it is difficult to efficiently collect the oil mist. Further, in the case of collecting oil mist by suction as in patent document 2, how much oil mist can be collected largely depends on the capacity of the suction device. However, most suction devices are installed in factories and the like as they are, and there is a limit to the enhancement of the capacity. Further, there is a problem that a huge cost is required to enhance the capability of the suction device.

Disclosure of Invention

In view of the above problems, an object of the present invention is to efficiently collect oil mist scattered from a yarn processing apparatus at low cost.

Means for solving the problems

An oil recovery device according to the present invention is an oil mist recovery device for recovering oil mist emitted from a yarn processing device for performing a predetermined process on a yarn by injecting a fluid into a yarn traveling space in which the yarn to which an oil has been applied travels, the oil mist recovery device including: the yarn processing apparatus includes a housing that houses the yarn processing apparatus and is formed with a suction port, and a guide member that is disposed inside the housing and guides a jet flow from the yarn running space, which is generated by jetting the fluid, to the suction port.

In the present invention, a suction port is formed in a housing that houses the yarn processing device, and oil mist that is scattered from the yarn processing device is collected through the suction port. However, if the housing is simply provided, the oil mist is retained in the housing when the suction force of the suction device is insufficient. The oil mist trapped around the yarn leaks out of the housing with the accompanying flow. On the other hand, if the capability of the suction device is enhanced to suppress the oil mist from leaking out, a significant cost increase may result. Therefore, in the present invention, a guide member is provided for guiding the jet flow from the yarn running space to the suction port. In this way, the oil mist can be guided to the suction port by the force of the jet flow discharged from the yarn running space, and the oil mist can be efficiently recovered at low cost.

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.

With this configuration, the air passage member can stably guide the jet flow to the suction port, and therefore the oil mist can be recovered more efficiently. The ejection of the fluid from the discharge port of the air duct member can be utilized as an assist force for the suction at the suction port of the casing.

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

With this configuration, since the pressure of the fluid directed to the discharge port is increased, the fluid can be discharged from the discharge port while maintaining the force at the time of discharge from the yarn running space to a certain extent. Therefore, the effect of the suction assisting force by the ejection of the fluid from the air duct member can be enhanced, and the oil mist can be effectively recovered.

In the present invention, the air duct member may have 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 inlet side may be located outside the yarn running space in the extending direction.

With such a configuration, it becomes easy to collect the jet flows discharged from both ends of the yarn running space into the air duct member.

In the present invention, a part of the guide surface on the side of the inlet port including an end on the side of the inlet port may be extended outward in the extending direction of the yarn advancing space toward the outlet port.

With this configuration, the jet flow from the yarn running space can be easily guided to the discharge port side by the guide surface, and the flow disturbance caused by the collision with the guide surface can be suppressed.

In the present invention, the guide surface may be curved across from an end on the inlet side to an end on the outlet side.

If there are corners on the guide surface, the flow of the fluid is easily disturbed here. In this regard, the guide surface is a curved surface, so that the flow of the fluid can be made smooth.

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

With such a configuration, the flow of fluid in the duct member is also likely to be symmetrical, and the flow is less likely to be disturbed.

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

With this configuration, even oil mist that has not been taken into the air duct member can be sucked from the suction port through the suction flow path, and therefore oil mist can be collected more efficiently.

In the present invention, the air duct member may be movable between a distant position distant from the yarn processing device and a close position closer to the yarn processing device than the distant position.

The closer the air duct member is disposed to the yarn processing device, the more oil mist can be recovered. However, in this case, the air duct member becomes an obstacle when the yarn is hung on the yarn processing device. Therefore, by configuring the air duct member to be movable as described above, both the oil mist recovery efficiency and the yarn hooking work operability can be achieved.

In the present invention, the case may be provided with an opening through which the yarn passes, and an opening/closing member capable of changing an opening area of the opening may be provided.

The smaller the opening formed in the housing, the more the amount of oil mist leaking from the housing can be reduced. However, when the yarn is hung on the yarn processing device, it is difficult to pass the yarn through the opening. Therefore, as described above, by providing the opening/closing member in the opening portion, both the reduction of the oil mist leakage and the operability of the yarn hooking operation can be achieved.

The yarn processing mechanism according to the present invention is characterized by comprising: a yarn processing device for performing a predetermined process on a yarn to which a finish has been applied by injecting a fluid into a yarn running space in which the yarn runs, and any of the finish recovery devices described above.

In the yarn processing device, as described above, the oil mist scattered from the yarn processing device can be efficiently collected at low cost.

In the present invention, the yarn processing device may include: a yarn processing section in which the yarn running space is formed, a support member that supports the yarn processing section, and a jet flow guide member that is arranged outside the yarn processing section in an extending direction of the yarn running space; the spouting guide member rises from the support member toward the guide member.

With this configuration, the jet flow from the yarn running space can be guided to the guide member by the jet flow guide member, and the oil mist can be collected more efficiently.

In the present invention, the jet flow guide member may be inclined and raised from the support member to an outer side of the yarn running space in the extending direction.

With this configuration, since the jet flow from the yarn running space is easily guided to the guide member by the jet flow guide member, the jet flow guide member can prevent turbulence of the jet flow caused by hitting the jet flow guide member.

In the present invention, a guide groove into which the yarn is inserted may be formed in the spouting guide.

With this configuration, the jet flow guide member can be used as the yarn guide member, and therefore, the increase in the number of components can be suppressed.

The spinning draft device according to the present invention includes a finish oil applying device that applies a finish oil to a yarn, and any one of the yarn processing mechanisms disposed downstream of the finish oil applying device in a yarn advancing direction.

In the case of such a spinning draft device, as described above, the oil mist scattered from the yarn processing device can be efficiently collected at low cost.

Drawings

Fig. 1 is a schematic view of a spun yarn drafting device including a cross-yarn applying mechanism according to the present embodiment.

Fig. 2 is a perspective view of the interlacing device.

Fig. 3 is a cross-sectional view of the cross application mechanism provided with the oil recovery device.

Fig. 4 is a cross-sectional view of the cross application mechanism provided with the oil recovery device.

Fig. 5 is a perspective view of the air duct member.

Fig. 6 is a diagram showing the flow of air in the interlace applying mechanism.

Description of reference numerals

1-a spinning drafting device; 2-oil agent guide (oil agent applying device); 5-a cross-yarn applying mechanism (yarn processing mechanism); 20-a crosser (yarn processing device); 21-a support member; 22-a crosswinding section (yarn processing section); 23-a yarn guide member (jet flow guide member); 23 a-guide groove; 24a — yarn running space; 30-oil recovery device; 31-a housing; 31 a-suction port; 31b, 31 c-opening parts; 33. 34-an opening-closing member; 32-air channel member (guide member); 32 a-an inlet; 32 b-a discharge port; 35. 36-a guide surface; 49-suction channel; y is a yarn.

Detailed Description

(spinning draft device)

Embodiments of the present invention will be explained. Fig. 1 is a schematic view of a spun yarn drafting device including a cross-yarn applying mechanism according to the present embodiment. The vertical and longitudinal directions shown in fig. 1 are defined as vertical and longitudinal directions of the spinning draft device 1, respectively.

The spinning draft device 1 drafts a plurality of synthetic fiber yarns Y spun from the spinning device 100 and winds the synthetic fiber yarns Y around a plurality of bobbins B to form a plurality of packages P. The spinning draft device 1 includes a finish guide 2 (corresponding to a finish applying device of the present invention), a stretching device 3, a 1 st draft roller 4, a cross applying mechanism 5 (corresponding to a yarn processing mechanism of the present invention), a 2 nd draft roller 6, and a winding device 7. In the spinning device 100, a polymer supplied from a polymer supply device (not shown) including a gear pump or the like is extruded downward by a not-shown spinneret.

The plurality of yarns Y spun from the spinning device 100 travel in a yarn path along the finish guide 2, the stretching device 3, the 1 st draft roller 4, the interlace applying mechanism 5, and the 2 nd draft roller 6 while being aligned in a direction perpendicular to the paper surface of fig. 1. Then, the plurality of yarns Y are distributed in the front-rear direction from the 2 nd draft roller 6, and are wound on the plurality of bobbins B by the winding device 7.

The plurality of yarns Y spun from the spinning device 100 are supplied with the finish by the finish guide 2 and then sent to the drawing device 3. The finish oil guide 2 of the present embodiment is disposed between the spinning device 100 and the drawing device 3 in the yarn running direction, but the finish oil guide 2 may be disposed at any position on the upstream side of the after-mentioned winder 20 in the yarn running direction. The stretching device 3 is configured such that a plurality of heating rollers, not shown, are housed in an insulation box. The drawing device 3 heats and draws the plurality of yarns Y spun from the spinning device 100 by the plurality of heating rollers.

The plurality of yarns Y stretched by the stretching device 3 are sent to the winding device 7 by the 1 st draft roller 4 and the 2 nd draft roller 6. Between the 1 st draft roller 4 and the 2 nd draft roller 6, a crosswind applying mechanism 5 having a crosswind device 20 (corresponding to a yarn processing device of the present invention) that winds a plurality of filaments constituting the yarn Y and applies crosswind is arranged. The cross-yarn applying mechanism 5 may be disposed at any position downstream of the finish oil guide 2 in the yarn running direction. For example, as shown by the broken line in fig. 1, the interlace applying mechanism 5 may be disposed between the stretching device 3 and the 1 st draft roller 4. The interlace apparatus 20 and the interlace applying mechanism 5 will be described in detail later.

The winding device 7 includes a body 11, a turn table 12, 2 bobbin holders 13, a support frame 14, a contact roller 15, and a traverse device 16. The winding device 7 simultaneously winds the plurality of yarns Y fed from the 2 nd draft roller 6 onto the plurality of bobbins B by rotating the bobbin holder 13, thereby forming a plurality of packages P.

A disc-shaped turntable 12 is attached to the machine body 11. The turntable 12 is rotationally driven by a motor not shown. Cylindrical 2 bobbin holders 13 are supported by a cantilever in a posture extending in the front-rear direction on the turn table 12. A plurality of bobbins B are mounted on each bobbin holder 13 in an aligned state in the axial direction (front-rear direction). By the rotation of the turn table 12, the 2 bobbin holders 13 can be moved between the winding position on the upper side and the retracted position on the lower side.

The support frame 14 is a member extending in the front-rear direction, and the rear end portion thereof is fixed to the machine body 11. A roller support member 17 extending in the front-rear direction is attached to a lower portion of the support frame 14 so as to be movable up and down with respect to the support frame 14. The contact roller 15 extending in the front-rear direction is rotatably supported by the roller support member 17. The shape of the package P is adjusted by applying a predetermined contact pressure to the package P by the contact roller 15.

The roller support member 17 is provided with a traverse device 16. The traverse device 16 includes a plurality of traverse guides 16a arranged in the front-rear direction. The traverse guides 16a are driven by a motor, not shown, and reciprocate in the front-rear direction. The traverse guide 16a reciprocates in a state where the yarn Y is caught, and the yarn Y is wound around the corresponding bobbin B while swinging back and forth around the fulcrum guide 18.

(arrangements for interlacing)

Fig. 2 is a perspective view of the crosser 20. The extending direction in fig. 2 is a direction in which a yarn running space 24a described later extends. The arrangement direction is a direction in which the plurality of yarns Y are arranged, and is a direction orthogonal to the extending direction. The height direction is a direction orthogonal to both the extension direction and the arrangement direction. In this specification, for convenience, one side in the height direction (upper side in fig. 2) is referred to as an upper side, and the other side (lower side in fig. 2) is referred to as a lower side. However, the upper and lower sides in the height direction do not necessarily coincide with the upper and lower sides in the vertical direction (the upper and lower sides shown in fig. 1).

The crosser 20 performs crossovers on the yarn Y with compressed air (an example of a fluid in the present invention). The interlacing device 20 includes a support member 21, an interlacing unit 22 (corresponding to a yarn processing unit of the present invention), and 2 yarn guide members 23 (corresponding to a jet flow guide member of the present invention). The support member 21 supports the interlacing portion 22 and the 2 yarn guide members 23. The plurality of

interlace sheets

24 and 2 yarn guide members 23 constituting the interlace portion 22 stand on the same side (upper side) in the height direction from the support member 21.

The interlace section 22 has a structure in which a plurality of interlace sheets 24 are arranged in the arrangement direction. In each of the crossmembers 24, the yarn running space 24a penetrates in the extending direction, and the yarn Y runs in the yarn running space 24 a. In an upper portion between the crossovers 24 adjacent to each other, a yarn insertion passage 24b for inserting the yarn Y into the yarn running space 24a is formed. A jet port (not shown) for jetting compressed air toward the yarn running space 24a is formed in the center portion of the cross member 24 in the extending direction. The yarn Y traveling in the yarn traveling space 24a is entangled by being subjected to the action of the compressed air ejected from the ejection port. The ejected compressed air is ejected as jets from both ends of the yarn running space 24 a.

The 2 yarn guide members 23 are disposed on both sides of the yarn hooking portion 22 with an interval therebetween in the extending direction from the yarn hooking portion 22. The yarn guide member 23 has a wall-like shape standing from the support member 21 and extending in the array direction. The yarn guide member 23 does not rise directly upward from the support member 21, but rises obliquely outward from the crossing portion 22 in the extending direction from the support member 21. The yarn hooking member 23 has a plurality of guide grooves 23a formed therein at equal intervals in the arrangement direction. The guide groove 23a has a slit shape opened upward. The yarn paths of the plurality of yarns Y in the crosser 20 are defined by the insertion of the plurality of yarns Y into the corresponding guide grooves 23 a.

In addition, although not shown in fig. 2, the crosswinding device 20 is provided with a yarn-hooking support member 25 (see fig. 3 and 4) used in a yarn-hooking operation. The yarn hooking auxiliary member 25 is a round bar-shaped member extending in the arrangement direction. One end of the yarn hooking assisting member 25 is fixed to the arm 26 and is attached to the support member 21 via the arm 26. In the present embodiment, the yarn hooking assisting member 25 is supported by a cantilever, but may be supported at two points. The arm 26 can swing about a fulcrum 27. Thereby, the yarn hooking assisting member 25 can move between the lower position shown in fig. 3 and the upper position shown in fig. 4.

(oil recovery device)

In the crosswinding device 20 configured as described above, a part of the finish oil adhering to the yarn Y is blown off by the compressed air being injected, and becomes oil mist. If such oil mist is scattered from the crosswinding device 20 together with the jet flow from the yarn running space 24a, the oil mist may adhere to the resin component to deteriorate the resin component, or may adhere to the yarn Y or the package P to deteriorate the yarn quality. Therefore, the cross-machine application mechanism 5 is provided with an oil recovery device 30 for recovering the oil mist scattered from the cross-machine device 20.

Fig. 3 and 4 are cross-sectional views of the cross-winding mechanism 5 including the oil recovery device 30, and in detail, cross-sectional views of cross-sections perpendicular to the arrangement direction. Fig. 3 shows a state where an air passage member 32 described later is located at a close position close to the air crosser 20, and fig. 4 shows a state where the air passage member 32 is located at a distant position away from the air crosser 20. Fig. 5 is a perspective view of the air channel member 32.

As shown in fig. 3 and 4, the oil recovery device 30 includes a housing 31 and a wind tunnel member 32 (corresponding to a guide member of the present invention). The casing 31 is a box-shaped member that houses the air-conditioning apparatus 20 and the air duct member 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, and generates an upward suction force. The air-handling device 20 is disposed at a lower portion of the casing 31, and the air duct member 32 is disposed above the air-handling device 20. The crosser 20 is fixed, but the air duct member 32 can move in the height direction as described later. A suction flow path 49 communicating with the suction port 31a is formed between the inner surface of the casing 31 and the outer surface of the air duct member 32. The oil recovery device 30 sucks and recovers the oil mist flying from the crossroad device 20 from the suction port 31a through the air passage member 32 or the suction flow path 49.

The housing 31 is formed with an opening 31b for introducing the plurality of yarns Y into the housing 31 and an opening 31c for discharging the plurality of yarns Y out of the housing 31. The

openings

31b and 31c are provided with opening/

closing members

33 and 34 capable of changing the opening areas of the

openings

31b and 31 c.

The air duct member 32 has a function of guiding the jet flow from the yarn running space 24a of the crosser 20 to the suction port 31a, and is disposed so as to cover the crosser 20. As shown in fig. 5, the air duct member 32 is a hollow member having 4 side surfaces 35 to 38, and extends in the height direction. An inlet 32a for sucking the jet flow is formed at the lower end of the air duct member 32, and an outlet 32b for discharging the jet flow to the suction port 31a is formed at the upper end. The inlet 32a completely covers the crosser 20 when viewed in the height direction. The discharge port 32b is formed at a position facing the suction port 31a, and has an opening area smaller than the introduction port 32 a.

The pair of side surfaces 35, 36 opposed to each other in the extending direction correspond to the guide surfaces of the present invention. Hereinafter, the guide surfaces 35 and 36. The guide surfaces 35 and 36 are arranged in a direction intersecting the extending direction of the yarn running space 24 a. The pair of side surfaces 37 and 38 facing each other in the arrangement direction are planes parallel to a plane orthogonal to the arrangement direction. As shown in fig. 5, a slider 39 is fixed to the side surface 38. A rail member 40 extending in the height direction is fixed to an inner surface of the housing 31, and the slider 39 slidably engages with the rail member 40. Thereby, the air channel member 32 can move in the height direction between the close position (the position shown in fig. 3) and the distant position (the position shown in fig. 4). The movement of the air-passage member 32 may be manually performed by an operator, or a driving device for moving the air-passage member 32 may be provided.

A positioning mechanism is preferably provided to position the air channel member 32 in the proximal and distal positions. For example, the positioning at the close position may be performed by a stopper, not shown, provided on the crosswinding device 20 coming into contact with the lower end of the air duct member 32. The positioning at the remote position may be performed by engagement between the housing 31 and the wind tunnel member 32 by an engagement mechanism such as a latch. Of course, other positioning mechanism configurations may be used.

The pair of guide surfaces 35 and 36 are curved surfaces that are curved when viewed from the arrangement direction, and are plane-symmetrical with respect to the center of the crosser 20 (yarn running space 24a) in the extending direction. When viewed in the extending direction, a part of the lower end of the guide surfaces 35 and 36 overlaps the yarn hooking member 23. Specifically, the lower ends of the guide surfaces 35 and 36 are located below the upper end of the yarn hooking member 23 and above the lower end of the guide groove 23a in the height direction. The lower end portions of the guide surfaces 35 and 36 are located outward of the yarn running space 24a and outward of the upper end portion of the yarn hooking member 23 in the extending direction. Therefore, the jet flow from the yarn running space 24a is easily taken into the air duct member 32.

Of the guide surfaces 35 and 36, a part of the lower side (the side of the inlet port 32 a) including the lower end portion is the 1 st

bent portion

35a and 36a which spreads outward of the intersection portion 22 in the extending direction as it goes upward (the side of the outlet port 32 b). The 1 st

bent portions

35a and 36a are bent so as to bulge outward in the extending direction. The guide surfaces 35 and 36 include 2 nd curved

portions

35b and 36b that are closer to each other toward the upper side, in a part of the upper side including the upper end portion. The 2 nd bent

portions

35b and 36b are bent so as to be recessed inward in the extending direction. The 1 st bend 35a and the 2 nd bend 35b are continuous, and the 1 st bend 36a and the 2 nd bend 36b are continuous.

The 1 st

bent portions

35a and 36a gradually increase the flow path area of the air-passage member 32 up to halfway up the air-passage member (the area in the air-passage member 32 in the cross section perpendicular to the height direction). Further, the flow path area of the air passage member 32 gradually decreases toward the upper side from the middle portion thereof by the 2 nd bent

portions

35b and 36 b. The tangential direction of the lower end portions of the 1 st

bent portions

35a, 36a is substantially the same as the inclination of the yarn guide member 23.

(hanging operation)

The procedure when the yarn winding operation is performed on the crosser 20 housed in the casing 31 will be described with reference to fig. 3 and 4. The surface of the housing 31 on the near side in fig. 3 and 4 is an openable and closable door (not shown), and by opening the door, the yarn winding operation can be performed on the crosser device 20.

When the yarn hanging operation is started, the air duct member 32 is moved to a distant position from the crosser 20 as shown in fig. 4. Then, the opening and

closing members

33 and 34 are opened, and the yarn hooking assisting member 25 is moved to the upper position. When the opening/

closing members

33, 34 are opened, the opening areas of the

openings

31b, 31c become maximum, and it becomes easy to pass a plurality of yarns Y through the

openings

31b, 31c during the yarn hooking operation.

Next, the plural yarns Y are wound around the 1 st draft roller 4 (see fig. 1) by a suction gun (not shown), and then introduced into the casing 31 through the opening 31 b. Then, the plurality of yarns Y are wound on the yarn winding auxiliary member 25, led out of the housing 31 through the opening 31c, and wound on the 2 nd draft roller 6. In this state, if the yarn hooking assisting member 25 is lowered to the lower position, the plurality of yarns Y are inserted into the respective guide grooves 23a of the yarn hooking member 23 as shown in fig. 3.

Subsequently, the air duct member 32 is lowered to a position close to the air-handling apparatus 20, and the air-handling apparatus 20 is covered with the air duct member 32. Finally, the yarn hooking operation to the crosser 20 is terminated by closing the opening/

closing members

33 and 34. When the opening/

closing members

33, 34 are closed, the opening areas of the

openings

31b, 31c are the minimum area required for the plurality of yarns Y to pass through, and leakage of oil mist can be suppressed.

(flow of air)

Fig. 6 is a diagram showing the flow of air in the cross application mechanism 5, and the main flow of air is indicated by arrows. The jet flows from both ends of the yarn running space 24a of the crosser 20 directly flow in the extending direction and hit the yarn guide member 23. The jet stream hitting the yarn guide member 23 flows mostly upward without flowing downward due to the presence of the support member 21, and flows into the duct member 32 from the inlet 32 a. At this time, since the yarn carrier member 23 is inclined obliquely upward and outward, the jet stream hitting the yarn carrier member 23 is easily guided upward, and the flow disturbance caused by hitting the yarn carrier member 23 can be suppressed.

The jet flow flowing into the inside of the air channel member 32 mainly flows along the guide surfaces 35, 36. Since the 1

st bend portions

35a, 36a are expanded outward, the flow diagonally upward and outward along the yarn hooking member 23 can be smoothly directed upward. Since the interval between the 2 nd bent

portions

35b and 36b gradually becomes narrower toward the discharge port 32b, the flow path area inside the air channel member 32 gradually becomes smaller. Therefore, the pressure of the air rises toward the discharge port 32b, and the force when the air is discharged from the yarn running space 24a can be maintained to a certain degree, and the air is discharged from the discharge port 32b toward the suction port 31a without decreasing the air potential. Since such discharge of air from the discharge port 32b of the air duct member 32 can be utilized as an assist force for the suction at the suction port 31a of the housing 31, the oil mist can be efficiently recovered.

On the other hand, a part of the oil mist flying out from the traverse 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 taken in the air duct member 32 is guided to the suction port 31a together with the flow of the air in the suction flow path 49 and is collected. At this time, since the air in the suction passage 49 can be sucked by the negative pressure by discharging the air from the discharge port 32b without decreasing the air potential as described above, the oil mist floating in the suction passage 49 can be recovered favorably.

(Effect)

In the present embodiment, a suction port 31a is formed in the casing 31 that houses the air-traffic apparatus 20, and the oil mist flying from the air-traffic apparatus 20 is collected through the suction port 31 a. However, if the casing 31 is simply provided, oil mist is accumulated in the casing 31 when the suction force of the suction device 101 is insufficient. The oil mist remaining around the yarn Y leaks out of the housing 31 along with the wake. If the capability of the suction device 101 is enhanced to suppress the oil mist from leaking out, a significant cost increase may result. Therefore, in the present embodiment, a guide member (air duct member 32) is provided to guide the jet flow from the yarn running space 24a to the suction port 31 a. By this means, the oil mist can be guided to the suction port 31a by the force of the jet discharged from the yarn running space 24a, and the oil mist can be recovered efficiently at low cost.

In the present 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 31 a. With this configuration, the jet flow can be securely guided to the suction port 31a by the air channel member 32, and therefore the oil mist can be collected more efficiently. The ejection of air from the discharge port 32b of the air duct member 32 can be used as an assist force for the suction at the suction port 31a of the housing 31.

In the present embodiment, the flow path area of a portion of the air channel member 32 on the side of the discharge port 32b including the discharge port 32b gradually decreases toward the discharge port 32 b. With such a configuration, since the pressure of the air toward the discharge port 32b is increased, the air can be discharged from the discharge port 32b while maintaining the force at the time of being discharged from the yarn running space 24a to a certain degree. Therefore, the effect of the auxiliary suction force by the air ejected from the air duct member 32 can be enhanced, and the oil mist can be recovered more efficiently.

In the present embodiment, the air duct member 32 has guide surfaces 35 and 36 arranged in a direction intersecting the extending direction of the yarn running space 24a, and the end portions of the guide surfaces 35 and 36 on the side of the introduction port 32a are located outside the yarn running space 24a in the extending direction. With such a configuration, it becomes easy to collect the jet flows discharged from both ends of the yarn running space 24a into the air duct member 32.

In the present embodiment, a part of the guide surfaces 35 and 36 on the side of the inlet 32a including the end on the side of the inlet 32a spreads outward in the extending direction of the yarn running space 24a toward the outlet 32 b. With this configuration, the jet flow from the yarn running space 24a can be easily guided to the yarn discharge port 32b side by the guide surfaces 35 and 36, and the turbulence of the flow caused by the collision with the guide surfaces 35 and 36 can be suppressed.

In the present embodiment, the guide surfaces 35 and 36 are curved so as to extend from the end on the inlet 32a side to the end on the outlet 32b side. If the guide surfaces 35, 36 have corners, the flow of air therein is easily disturbed. In this regard, the guide surfaces 35 and 36 are curved surfaces, so that the air can flow smoothly.

In the present embodiment, the pair of guide surfaces 35 and 36 are surface-symmetrical with respect to the center of the extending direction of the yarn running space 24 a. With such a configuration, the flow of air in the duct member 32 is also likely to be symmetrical, and the flow is less likely to be disturbed.

In the present 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 configuration, even the oil mist that has not been taken into the air duct member 32 is sucked from the suction port 31a through the suction flow path 49, and therefore the oil mist can be collected more efficiently.

In the present embodiment, the air duct member 32 is movable between a distant position distant from the air-crossing device 20 and a close position closer to the air-crossing device 20 than the distant position. The closer the air duct member 32 is disposed to the air-crossing device 20, the more oil mist can be collected. However, the air duct member 32 becomes an obstacle when the yarn winding operation is performed on the crosser 20 in this way. Therefore, by configuring the air duct member 32 to be movable as described above, both the oil mist collection efficiency and the operability of the yarn hooking operation can be achieved.

In the present embodiment, the case 31 is provided with the

openings

31b and 31c through which the yarn Y passes, and the opening and

closing members

33 and 34 capable of changing the opening areas of the

openings

31b and 31c are provided. The smaller the

openings

31b and 31c formed in the housing 31, the less the amount of oil mist leaking from the housing 31. However, when the yarn Y is hung on the crosser 20, it is difficult to pass the yarn Y through the

openings

31b and 31 c. Therefore, by providing the opening/

closing members

33 and 34 in the

openings

31b and 31c as described above, both the reduction of the oil mist leakage and the operability of the yarn hooking operation can be achieved.

In the present embodiment, the interlacing device 20 includes the interlacing portion 22 in which the yarn running space 24a is formed, the support member 21 that supports the interlacing portion 22, and the jet flow guide member (the yarn guide member 23) that is arranged outside the interlacing portion 22 in the extending direction of the yarn running space 24a, and the yarn guide member 23 stands from the support member 21 toward the guide member (the air duct member 32). With this configuration, the jet flow from the yarn running space 24a can be guided to the guide member (air duct member 32) by the jet flow guide member (yarn guide member 23), and the oil mist can be collected more efficiently.

In the present embodiment, the jet flow guide member (the yarn guide member 23) is inclined and raised from the support member 21 to the outside of the yarn running space 24a in the extending direction. With this configuration, the jet flow from the yarn travelling space 24a is easily guided to the guide member (the air duct member 32) by the jet flow guide member (the yarn guide member 23), and the flow disturbance caused by the jet flow guide member (the yarn guide member 23) being hit can be suppressed.

In the present embodiment, the jet flow guide member (the yarn guide member 23) is provided with a guide groove 23a into which the yarn Y is inserted. With this configuration, the jet flow guide member can be used as the yarn guide member, and therefore, the increase in the number of components can be suppressed.

(other embodiments)

Next, a modification example in which various modifications are made to the above embodiment will be described.

The specific structure of the housing 31 of the above embodiment can be changed as appropriate. For example, the suction port 31a may be formed at a position other than the upper end portion of the housing 31. Further, a plurality of suction ports 31a may be formed. It is not essential to provide the opening/

closing members

33 and 34 in the

openings

31b and 31 c.

The specific structure of the air duct member 32 of the above embodiment can be changed as appropriate. For example, the guide surfaces 35 and 36 of the air channel member 32 are not necessarily curved, and may be flat or bent. The side surfaces 37 and 38 of the air duct member 32 may be curved surfaces. The air duct member 32 may be a straight cylindrical or square cylindrical member, a hollow member having a truncated cone or a truncated square, or a pipe bent at the middle. The direction in which the air duct member 32 extends can be changed as appropriate. The arrangement of the discharge port 32b in the air duct member 32 can be changed as appropriate, but the discharge port 32b is preferably arranged to face the suction port 31a of the housing 31.

In the above embodiment, the air duct member 32 is movable, but the air duct member 32 is not necessarily movable as long as the yarn hooking operation to the crosswinding device 20 can be performed. The air duct member 32 may be divided into a plurality of pieces, or a part of the inlet 32a side or the outlet 32b side may be branched into a plurality of paths.

In the above embodiment, the guide member of the present invention is the air duct member 32, but the guide member may be of another form. For example, the guide member may be constituted by a single guide plate or a plurality of guide plates (members such as the guide surfaces 35 and 36).

In the above embodiment, the yarn guide member 23 of the crosser 20 is a member that rises obliquely, but may rise straight in the height direction from the support member 21. The yarn guide member 23 is not limited to a plate-like member, and may have various protruding shapes rising from the support member 21.

In the above embodiment, the spinning draft device 1 includes the stretching device 3. However, the present invention may be applied to a spinning draft device not provided with the stretching device 3.

In the above embodiment, the case where the yarn processing apparatus of the present invention is the crosser apparatus 20 has been described. However, the oil recovery device according to the present invention may be applied to other yarn processing devices. As another yarn processing apparatus, for example, a fine nozzle for homogenizing a finish applied to the yarn can be cited. Further, in the above-described embodiment, the example in which the fluid is ejected from both ends of the yarn running space 24a has been described, but the yarn processing device of the present invention may be a device in which the fluid is ejected from one end of the yarn running space 24 a. In this case, the guide surface and the jet flow guide member of the present invention may be provided only on the side from which the fluid is ejected from the yarn running space 24 a.

Claims

1. A finish recovery device that recovers oil mist that is scattered from a yarn processing device that performs a predetermined process on a yarn by injecting a fluid into a yarn running space in which the yarn to which finish is applied runs, the finish recovery device comprising:

a housing accommodating the yarn processing device and having a suction port, and

and a guide member disposed inside the housing and guiding a jet flow from the yarn running space generated by the fluid being ejected to the suction port.

2. The oil recovery device according to claim 1, wherein the guide member is an air duct member having an inlet for receiving the jet flow and an outlet for discharging the jet flow toward the suction port.

3. The oil recovery device according to claim 2, wherein a portion of the air duct member including the discharge port side of the discharge port has a flow path area that gradually decreases toward the discharge port side.

4. The oil recovery device according to claim 2 or 3, wherein the air duct member has a guide surface disposed in a direction intersecting an extending direction of the yarn running space,

an end of the guide surface on the guide inlet side is located outside the yarn running space in the extending direction.

5. The oil recovery device according to claim 4, wherein a portion of the guide surface on the inlet side including an end on the inlet side spreads outward in the extending direction of the yarn advancing space toward the outlet side.

6. The oil recovery device according to claim 4 or 5, wherein the guide surface is curved across from the end on the inlet side to the end on the outlet side.

7. The oil recovery device according to any one of claims 4 to 6, wherein the guide surfaces are provided in pairs on both sides of the yarn running space in the running direction,

the pair of guide surfaces is plane-symmetrical with respect to the center of the yarn running space in the extending direction.

8. The oil recovery device according to any one of claims 2 to 7, wherein a suction flow path communicating with the suction port is formed between an inner surface of the casing and an outer surface of the air duct member.

9. The oil recovery device according to any one of claims 2 to 8, wherein the air duct member is movable between a distant position distant from the yarn processing device and a close position closer to the yarn processing device than the distant position.

10. The oil recovery device according to any one of claims 1 to 9, wherein an opening through which the yarn passes is formed in the case,

an opening/closing member capable of changing an opening area of the opening portion is provided.

11. A yarn processing mechanism is characterized by comprising: a yarn processing device for performing a predetermined process on a yarn by injecting a fluid into a yarn running space where the yarn to which an oil agent is applied runs, and

an oil recovery device according to any one of claims 1 to 10.

12. The yarn processing mechanism according to claim 11, wherein the yarn processing device comprises:

a yarn processing section in which the yarn running space is formed,

a support member for supporting the yarn processing section, and

a jet flow guide member disposed outside the yarn processing section in an extending direction of the yarn running space;

the spouting guide member rises from the support member toward the guide member.

13. The yarn processing mechanism according to claim 12, wherein said jet flow guide member is inclined and raised from said support member to an outside of said yarn running space in said extending direction.

14. The yarn processing mechanism according to claim 12 or 13, wherein a guide groove into which the yarn is inserted is formed in the jet guide member.

15. A spinning draft device is characterized by comprising:

finish applying device for applying finish to yarn, and

the yarn processing mechanism according to any one of claims 11 to 14 disposed downstream of the oil application device in a yarn running direction.