CN109402824B

CN109402824B - Interlacing device

Info

Publication number: CN109402824B
Application number: CN201810938828.XA
Authority: CN
Inventors: 米仓踏青; 岩井崇; 日野宏一; 水谷光范
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2017-08-18
Filing date: 2018-08-17
Publication date: 2022-10-11
Anticipated expiration: 2038-08-17
Also published as: JP2019035169A; EP3444389A1; CN109402824A; JP6981808B2; EP3444389B1

Abstract

The present invention relates to an interlacing device that improves interlacing performance with an inexpensive configuration. The interlacing device is provided with an interlacing unit (21) having a yarn running space (25) formed along a yarn running direction and a fluid jet hole (28) for jetting fluid to the yarn running space (25), and interlacing is provided to a yarn (Y) running in the yarn running space (25) by the fluid jetted from the fluid jet hole (28), wherein a yarn insertion gap (30) for inserting the yarn (Y) into the yarn running space (25) is formed in the interlacing unit (21), and a cover member (40) covering the yarn insertion gap (30) is arranged at a position away from the yarn running space (25).

Description

Interlacing device

Technical Field

The present invention relates to a yarn interlacing device for imparting interlacing to yarns with a fluid.

Background

Conventionally, an interlacing device that imparts interlacing to a yarn with a fluid is known. For example, patent document 1 discloses an interlacing device that applies interlacing to a yarn by injecting a fluid from a fluid injection hole into a yarn running space formed in an interlacing unit. The fluid ejected from the fluid ejection hole into the yarn running space is discharged from both ends of the yarn running space while being directed to both sides in the yarn running direction in the yarn running space. Since the flow of the fluid in the yarn running space greatly affects the crosslinkability, the yarn running space is preferably sealed as much as possible except for both ends.

However, in patent document 1, a yarn insertion gap for inserting the yarn into the yarn running space is formed in the entanglement part, and the flow of the fluid in the yarn running space is disturbed by the air flowing into the yarn running space from the yarn insertion gap during entanglement, and entanglement performance may be degraded. In this regard, in the crosswinding device described in patent document 2, the 2 nd member is configured to be separated from and brought into contact with the 1 st member forming the yarn running space, and the yarn running space can be sealed by bringing the 2 nd member into close contact with the 1 st member. Further, the crosswinding device described in patent document 3 is provided with a movable closing member for closing the yarn insertion gap.

Patent document 1: japanese patent laid-open publication No. 2016-160550

Patent document 2: japanese laid-open patent publication No. 2009-133018

Patent document 3: german application laid-open No. 10038855

However, in patent document 2, it is very difficult to actually bring the 1 st member and the 2 nd member into close contact with each other completely, and even when a slight gap is formed, there is a problem that the wire bites into the gap. However, there is a problem that the cost associated with the mirror finishing increases and yarn breakage is likely to occur due to friction caused by contact between the yarn and the mirror surface in the case of synthetic fiber yarns. In addition, in patent document 3, since the closing member faces the yarn running space, the yarn moving around in the yarn running space during the crossing comes into contact with the closing member. Therefore, the sealing member needs to be made of, for example, ceramic, which leads to an increase in cost.

Disclosure of Invention

In view of the above problems, an object of the present invention is to improve the crossroad performance by an inexpensive configuration.

The present invention is an interlacing device including an interlacing unit having a yarn running space formed along a yarn running direction and a fluid ejection hole for ejecting a fluid to the yarn running space, the device being configured to apply interlacing to a yarn running in the yarn running space by the fluid ejected from the fluid ejection hole, wherein a yarn insertion gap for inserting the yarn to the yarn running space is formed in the interlacing unit, and a cover member covering the yarn insertion gap is disposed at a position away from the yarn running space.

In the present invention, the cover member covering the yarn insertion gap can suppress the inflow of air from the yarn insertion gap into the yarn running space during the crosswinding, and thus the crosswinding performance can be improved. Further, since the cover member is disposed at a position away from the yarn running space, the yarn moving around in the yarn running space during the crossing does not contact the cover member. Therefore, the material of the cover member is not particularly limited, and it is not necessary to perform polishing or the like in order to cope with the contact of the wires, so that the cost of the cover member can be suppressed. Therefore, according to the present invention, the crossroad performance can be improved by an inexpensive configuration.

In the present invention, the cover member may have a planar cover portion that covers the yarn insertion gap at a position away from the crosswinding portion.

When the yarn is wound around a bobbin to form a package on the downstream side of the crosswinding device, the tension of the yarn is temporarily zero when the yarn is cut when switching to a new bobbin. Further, the yarn loosened due to the zero tension may fly out from the yarn insertion gap. In such a case, when the cover portion is brought into contact with the entanglement portion, the flying yarn may bite between the cover portion and the entanglement portion. However, the yarn can be prevented from being caught by separating the cover from the crosswinding portion.

In the present invention, the cover member may further include, on the outer side of both end surfaces of the yarn passing portion in the yarn running direction, yarn pressing portions formed so as to overlap the yarn passing portion when viewed from the yarn running direction.

As described above, the yarn can be prevented from being caught by separating the cover from the crossing portion, but the yarn may greatly fly out of the gap between the cover and the crossing portion. Therefore, if the above-described yarn pressing portion is provided on the cover member, the yarn to be unwound from the yarn unwinding portion comes into contact with the yarn pressing portion, and hence the unwinding of the yarn can be reliably prevented.

In the present invention, the yarn running space may have a symmetrical shape with respect to a center line of the fluid ejection port in a cross section orthogonal to the yarn running direction, and the yarn insertion gap may be formed along a direction intersecting the center line.

In the entanglement device configured as described above, a fluid flow symmetrical with respect to the center line of the fluid ejection hole is generated in the yarn running space, and entanglement is imparted to the yarn by the fluid flow. However, when the yarn insertion gap is formed in a direction intersecting the center line, the degree of deterioration of the interlacing performance tends to increase due to the disruption of symmetry of the air flowing into the yarn running space from the yarn insertion gap. In this case, the present invention in which a cover member is provided to cover the insertion gap of the wire is particularly effective.

In the present invention, the cover member may be movable between a 1 st position and a 2 nd position, the 1 st position being a position covering the yarn insertion gap, and the 2 nd position being a position ensuring an open space with the yarn winding portion and allowing the yarn to be inserted into the yarn insertion gap from the open space.

According to such a configuration, if the cover member is moved from the first position to the second position, the yarn can be easily inserted into the yarn insertion gap. Therefore, the head-up to the interlacing device can be performed quickly.

In the present invention, the yarn winding unit may be configured such that a plurality of yarn winding members each having the yarn running space and the fluid jetting port are arranged in an arrangement direction orthogonal to the yarn running direction, and the yarn winding unit may wind a plurality of yarns running in the plurality of yarn running spaces.

In such a so-called multi-end type of crosswinding device, by providing the cover member over the entire area of the crosswinding portion, crosswinding performance with respect to the plurality of yarns can be improved. For example, in the case of a configuration in which the insertion gap of the wire is closed by the closing member as in patent document 3, a plurality of closing members need to be provided in the case of a multi-end type, which significantly increases the cost. However, in the present invention, since one cover member is only required, the cost can be effectively suppressed.

In the present invention, the yarn insertion gap may be formed between 2 adjacent crossers in the arrangement direction.

In this way, since cutting work or the like for forming a yarn insertion gap inside the crosser is not required, the crosser can be easily manufactured.

In the present invention, the yarn running space may be formed by combining a 1 st space formed in one of the 2 crosswinding members adjacent to each other in the arrangement direction and a 2 nd space formed in the other crosswinding member.

Since the yarn moving around during the crossing contacts the inner peripheral surface of the yarn running space, the inner peripheral surface may be subjected to polishing or the like so as to be able to receive contact with the yarn. In this case, in the above configuration, the first space and the second space are exposed to the outside before the plurality of crossovers are adjacently arranged, and therefore, the inner peripheral surfaces of the first space and the second space can be easily subjected to polishing or the like.

Drawings

Fig. 1 is a side view showing an example of a spinning draft device including a crosswinding device according to the present invention.

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

Fig. 3 is a cross-sectional view of the crossovers.

Fig. 4 is a perspective view showing the crosser in a state in which the cover member is attached.

Fig. 5 is a view seen from the arrow V direction of fig. 3.

Fig. 6 is a side view showing a moving mode of the cover member.

Fig. 7 is a cross-sectional view of a crossover portion of a modification.

Description of the symbols

5: interlacing device

21: crosswinding part

24: crosswinding member

25 filament advancing space

26 first space

27 second space

28 fluid injection hole

30: insertion of the thread into the gap

40 cover member

41 cover part

42, wire pressing part

S is an open space

Y is silk thread

Detailed Description

(spinning traction device)

An embodiment of the interlacing device of the present invention will be described. As shown in fig. 1, the spinning draft device 1 winds a plurality of synthetic fibers Y spun from the spinning device 2 around a plurality of bobbins B to form a plurality of packages P. In 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.

The spinning draft device 1 includes godet rollers 3 and 4, a crosser 5, and a winding device 6, and is disposed below the spinning device 2. The spinning device 2 spins a yarn Y of a synthetic fiber (for example, a fiber made of a synthetic resin such as polyethylene terephthalate) downward from a plurality of not-shown spinnerets. The godet rollers 3 and 4 are respectively driven to rotate by a motor not shown, and the plurality of yarns Y spun from the spinning device 2 are sent to the winding device 6 through the godet rollers 3 and 4. The interlacing device 5 is disposed between the godet rollers 3 and 4, and imparts interlacing to the plurality of yarns Y. The details of the crosser 5 will be described later.

The winding device 6 winds the yarns Y fed from the godet 4 around the bobbins B to form a plurality of packages P. The winding device 6 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.

A disc-shaped turntable 12 is attached to the body 11. The turntable 12 is rotationally driven by a motor not shown. 2 bobbin holders 13 each having a long cylindrical shape are supported by the turntable 12 in a cantilever manner in a posture extending in the front-rear direction. A plurality of bobbins B are mounted on each bobbin holder 13 in an aligned state in the axial direction thereof. The 2 bobbin holders 13 can be moved between an upper winding position and a lower retracted position by rotating the turn table 12.

The support frame 14 is an elongated frame-shaped member extending in the front-rear direction. The support frame 14 is fixedly attached to the machine body 11. A roller support member 17, which is long 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 axial direction of the bobbin holder 13 is rotatably supported by the roller support member 17. The contact roller 15 comes into contact with the package P and applies a predetermined contact pressure to the package P, thereby carding the shape of the package P.

A traverse device 16 is disposed directly above the contact roller 15 of the roller support member 17. 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 yarn guide 16a reciprocates while the yarn Y is being wound, whereby the yarn Y is wound around the bobbin B while traversing back and forth around the fulcrum yarn guide 18, and a package P is formed.

(Trachelosperwork device)

Next, the details of the scheduler 5 will be described. The interlacing device 5 is a device for twisting a plurality of filaments constituting one yarn Y to impart interlacing. As shown in fig. 2, the crosswinding apparatus 5 includes a

crosswinding unit

21, 2 guide members 22, and a base 23. The crossovers 24 are arranged adjacent to each other in a predetermined arrangement direction to form the crossovers 21. In the interlacing portion 21, a plurality of thread running spaces 25 are formed along a thread running direction orthogonal to the arrangement direction. In the present embodiment, a direction orthogonal to both the arrangement direction and the running direction of the yarn is defined as a height direction.

The guide members 22 are disposed on both the upstream side and the downstream side of the crosswinding portion 21 in the yarn running direction. The guide member 22 is a comb-shaped wire guide in which a plurality of guide portions 22a are formed in the arrangement direction. The plurality of yarns Y are restricted by the guide portions 22a of the 2 guide members 22 to travel inside the yarn traveling space 25. The base 23 supports the intersection 21 and the guide member 22. The crosser 24 and the guide member 22, which the yarn Y contacts, are made of ceramic.

Fig. 3 is a cross-sectional view of the crossing section 21, and specifically shows a cross-section perpendicular to the yarn running direction at the center in the yarn running direction. In fig. 3, for convenience of explanation, only 2 adjacent crossovers 24 are illustrated (the same applies to fig. 7). On a surface on one side (right side in fig. 3) of the crosser 24 in the arrangement direction, a 1 st space 26 having a substantially triangular cross-sectional shape is formed over the entire region in the yarn running direction. On the other hand, on the other side (left side in fig. 3) of the crosser 24 in the arrangement direction, a 2 nd space 27 having a substantially rectangular cross-sectional shape is formed over the entire region in the yarn running direction. The first space 26 and the second space 27 are formed at substantially the same position in the height direction. Therefore, when the 2 crossers 24 are brought into contact with each other in the arrangement direction, the first space 26 and the second space 27 are combined to form the yarn running space 25. The cross-sectional shapes of the first space 26 and the second space 27, that is, the cross-sectional shape of the yarn running space 25 are not limited to the shape shown in fig. 3.

The crosswinding member 24 is formed with a fluid injection hole 28 that injects fluid into the yarn running space 25. The fluid ejection hole 28 is located at the center of the crosswinding member 24 in the yarn traveling direction, and is formed along the arrangement direction. The fluid ejection hole 28 communicates with the filament running space 25 at the right end portion and communicates with the fluid supply hole 29 at the left end portion. The fluid supply hole 29 is formed in the height direction inside the crosser 24. The fluid supply hole 29 communicates with a fluid passage 39 formed inside the base 23. A fluid supplied from a fluid supply source, not shown, is ejected from the fluid ejection hole 28 to the yarn running space 25 through the fluid passage 39 and the fluid supply hole 29.

The surface on one side (the right surface in fig. 3) of the crosser 24 is a portion on the tip end side (the upper side in fig. 3) of the first space 26, and is formed slightly on the other side (the left side in fig. 3) than a portion on the base end side (the lower side in fig. 3) of the first space 26. The other surface (left surface in fig. 3) of the crosser 24 is a flush surface formed by a portion on the tip side of the second space 27 and a portion on the base end side of the second space 27. Therefore, when the 2 crossers 24 are abutted in the arrangement direction, the yarn insertion gap 30 communicating with the yarn running space 25 is formed between the 2 crossers 24. Thereby, the yarn Y can be inserted into the yarn running space 25 from the yarn insertion gap 30. Further, the leading end of each of the crossers 24 is formed in a chevron shape, and a yarn introduction portion 31 having an inverted triangular cross-sectional shape is formed between the leading ends of 2 crossers 24. The yarn Y can be easily guided to the yarn insertion gap 30 by the inclined surface of the yarn introduction portion 31.

When crossovers are given to the yarn Y running in the yarn running space 25, a fluid is supplied from a fluid supply source, not shown, to the fluid passage 39. As the fluid, for example, compressed air is used. The fluid supplied to the fluid passage 39 is ejected from the fluid ejection hole 28 to the filament running space 25 via the fluid supply hole 29. The fluid injected into the yarn running space 25 forms a twist current in the yarn running space 25, and imparts a crosswind to the yarn Y running in the yarn running space 25. The fluid injected into the yarn running space 25 is discharged from both ends of the yarn running space 25 while being directed to the upstream side and the downstream side in the yarn running direction.

In the present embodiment, as shown in fig. 3, the yarn running space 25 has a substantially symmetrical shape with respect to the center line C of the fluid ejection hole 28 in a cross section orthogonal to the yarn running direction. Therefore, the fluid ejected from the fluid ejection hole 28 forms a swirling flow having symmetry with respect to the center line C in the yarn running space 25, and crossovers can be favorably given to the yarn Y. However, the filament running space 25 does not necessarily have to be formed in a substantially symmetrical shape with respect to the center line C of the fluid ejection hole 28.

Here, in the case where the yarn Y is provided with crossovers by the whirling current as described above, the yarn running space 25 is preferably sealed as much as possible except for the openings at both ends. However, in the present embodiment, the yarn insertion gap 30 for inserting the yarn Y into the yarn running space 25 is formed, and air flows into the yarn running space 25 from the yarn insertion gap 30. Such inflow air may disturb the flow of the fluid in the yarn running space 25, and may deteriorate the crosswinding performance. In particular, in the present embodiment, the thread insertion gap 30 is formed along a height direction intersecting (orthogonal to) the center line C of the fluid ejection hole 28. Therefore, the air flowing into the yarn running space 25 from the yarn insertion gap 30 may break the symmetry of the flow of the fluid with respect to the center line C, and significantly degrade the interlacing performance. In the present embodiment, a cover member 40 is provided to cover the yarn insertion gap 30 in order to prevent air from flowing into the yarn running space 25 from the yarn insertion gap 30.

(cover means)

As shown in fig. 4, the cover member 40 is provided so as to cover the entire area of the leading end side of the crosswinding section 21. The cover member 40 is a member in which a

lid

41 and 2 wire pressing portions 42 are integrally formed. The cover 41 is a flat plate-like member having an area capable of covering the entire area of the interlace unit 21. The yarn pressing portion 42 is a portion bent substantially at right angles from both end portions of the cover portion 41 toward the base end side (lower side in fig. 4) of the crossing portion 21 in the yarn running direction.

As shown in fig. 5, the cover member 40 is disposed so that the cover 41 is located at a position slightly spaced from the yarn joining portion 21 toward the distal end side, and the 2 yarn pressing portions 42 are located at positions slightly spaced from both end surfaces of the yarn joining portion 21 in the yarn advancing direction toward the outside. By disposing the cover member 40 so as not to contact the entanglement unit 21 in this manner, damage to the entanglement unit 21 can be prevented. When the yarn Y is cut when the turret 12 (see fig. 1) is rotated to switch to a new bobbin B, the tension of the yarn Y is temporarily zero, and the loosened yarn Y may fly out of the yarn insertion gap 30. In such a case, when the cover 41 is brought into contact with the entanglement unit 21, the flying-out yarn Y may bite between the cover 41 and the entanglement unit 21, but the biting of the yarn Y can be prevented by separating the cover 41 from the entanglement unit 21.

However, when the cover 41 and the interlacing unit 21 are separated from each other, the yarn Y may fly out from the gap between the cover 41 and the interlacing unit 21. Therefore, in the present embodiment, as shown in fig. 3, the thread pressing portion 42 is configured to overlap a part of the crossing portion 21 when viewed from the thread running direction. Thus, the yarn Y that is about to fly out of the interlacing portion 21 comes into contact with the edge of the yarn pressing portion 42, and the yarn Y can be reliably prevented from flying out. Further, the yarn pressing portion 42 can also suppress the inflow of air from both end surfaces of the yarn introducing portion 31 in the yarn running direction. In addition, since tension acts on the yarn Y during the crossing, the yarn Y does not substantially fly out of the yarn insertion gap 30.

As shown in fig. 6, one end portion in the arrangement direction of the cover members 40 is supported by the base 23 so as to be swingable about a support shaft 43. Thereby, the cover member 40 can move between a first position covering the intersection portion 21 as indicated by a solid line in fig. 6 and a second position greatly separated from the intersection portion 21 as indicated by a two-dot chain line in fig. 6. A handle 44 is attached to the other end in the arrangement direction of the cover members 40. The cover member 40 can be easily moved between the first position and the second position by an operator operating the handle 44.

Further, a seating portion 45 is attached to the other end portion of the cover member 40 in the arrangement direction, and the seating portion 45 can be seated on a base portion 23a provided on the base 23. When the cover member 40 is in the first position, the seating portion 45 is seated on the base portion 23a, and the cover member 40 is supported by the base portion 23a. In the present embodiment, the seating portion 45 can be reliably maintained in the seated state by providing a magnet on one of the seating portion 45 and the seat portion 23a and forming the other of the seating portion and the seat portion with a magnetic material. However, it is not necessarily so configured.

When the yarn Y is interlaced by the interlacing device 5, the cover member 40 is positioned at the 1 st position, whereby the plurality of yarn insertion gaps 30 formed in the interlacing portion 21 are covered with the cover member 40. As a result, the air can be prevented from flowing into the yarn running space 25 from the yarn insertion gap 30, and the interlacing performance can be improved. The number of crossovers of the cover member 40 was verified at a take-up speed of 4900mpm using a 75dtex/36f yarn. As a result, the number of crossovers was 14.45knots/m in the absence of the cover member 40, whereas the number of crossovers was increased to 16.58knots/m by providing the cover member 40.

When threading the yarn Y into the yarn running space 25 from the yarn insertion gap 30 in the threading operation of the crosswinding device 5, the cover member 40 is moved to the 2 nd position. This ensures an open space S between the cover member 40 and the interlacing portion 21, and allows the yarn Y to be inserted into the yarn insertion gap 30 from the open space S. In fig. 6, the second position of the cover member 40 is a position after the cover member is swung from the first position by less than 90 degrees, but the second position may be swung from the first position by 90 degrees or more.

(Effect)

In the present embodiment, since the cover member 40 covering the yarn insertion gap 30 can suppress the inflow of air from the yarn insertion gap 30 to the yarn running space 25 during the interlacing, the interlacing performance of the yarn Y can be improved. In the present embodiment, since the cover member 40 is disposed at a position away from the yarn running space 25, the yarn Y moving around in the yarn running space 25 during the crossing does not contact the cover member 40. Therefore, for example, there is no limitation that the cover member 40 is made of ceramic, and there is no need to perform polishing or the like in order to cope with contact of the wire Y, so that the cost of the cover member 40 can be suppressed. Therefore, the crossroad performance can be improved by an inexpensive configuration.

In the present embodiment, the cover member 40 has a planar cover 41 that covers the yarn insertion gap 30 at a position away from the crosswinding portion 21. When the yarn Y is wound around the bobbin B to form the package P on the downstream side of the crosswinding device 5 and is cut when switching to a new bobbin B, the tension of the yarn Y is temporarily zero, and the loosened yarn Y may fly out from the yarn insertion gap 30. In such a case, when the cover 41 is brought into contact with the entanglement unit 21, the flying yarn Y may bite between the cover 41 and the entanglement unit 21. However, by separating the cover 41 from the interlacing unit 21, the yarn Y can be prevented from being caught.

In the present embodiment, the cover member 40 further includes thread pressing portions 42 on the outer sides of both end surfaces of the interlacing portions 21 in the thread running direction, and the thread pressing portions 42 are formed so as to partially overlap the interlacing portions 21 when viewed from the thread running direction. As described above, the yarn Y can be prevented from being caught by the lid 41 by separating it from the crosswinding portion 21, but the yarn Y may fly significantly from the gap between the lid 41 and the crosswinding portion 21. Therefore, by providing the above-described yarn pressing portion 42 in the cover member 40, the yarn Y that is about to fly out of the interlacing portion 21 comes into contact with the yarn pressing portion 42, and thus the yarn Y can be reliably prevented from flying out. In addition, since the yarn Y does not always come into contact with the yarn pressing portion 42 when the bobbin B is switched, the yarn pressing portion 42 does not particularly need to be made of ceramic.

In the present embodiment, the yarn running space 25 has a shape symmetrical with respect to the center line C of the fluid ejection hole 28 in a cross section orthogonal to the yarn running direction, and the yarn insertion gap 30 is formed along a direction intersecting the center line C. In the crosswinding device 5 configured as described above, a flow of the fluid symmetrical with respect to the center line C of the fluid injection hole 28 is generated in the yarn running space 25, and crosswinding is imparted to the yarn Y by the flow. However, when the yarn insertion gap 30 is formed in a direction intersecting the center line C, the degree of deterioration of the interlacing performance tends to increase due to the breakdown of symmetry of the air flowing into the yarn running space 25 from the yarn insertion gap 30. In such a case, the configuration in which the cover member 40 is provided to cover the wire insertion gap 30 as in the present embodiment is particularly effective.

In the present embodiment, the cover member 40 is configured to be movable between a first position covering the yarn insertion gap 30 and a second position where the yarn Y can be inserted into the yarn insertion gap 30 from the open space S while maintaining the open space S with the yarn winding section 21. According to such a configuration, if the cover member 40 is moved from the first position to the second position, the yarn Y can be easily inserted into the yarn insertion gap 30. Therefore, the head-up to the crosser 5 can be performed quickly.

In the present embodiment, a plurality of crossmembers 24 in which the yarn running spaces 25 and the fluid jet holes 28 are formed are arranged in an arrangement direction orthogonal to the yarn running direction to form a crosser 21, and the crosser 21 provides crossovers to the plurality of yarns Y running in the plurality of yarn running spaces 25. In the so-called multi-end type interlacing device 5, the cover member 40 is provided over the entire area of the interlacing portion 21, thereby improving the interlacing performance for the plurality of yarns Y. For example, in the case of a configuration in which the insertion gap of the wire is closed by the closing member as in patent document 3, a plurality of closing members need to be provided in the case of the multi-end type, which significantly increases the cost. However, in the present embodiment, since only one cover member 40 needs to be provided, the cost can be effectively suppressed.

In the present embodiment, the thread insertion gap 30 is formed between 2 crossovers 24 adjacent in the arrangement direction. In this way, since cutting or the like for forming the thread insertion gap 30 in the inside of the crosser 24 is not required, the crosser 24 can be easily manufactured.

In the present embodiment, the 1 st space 26 formed in one of the 2 crossmembers 24 adjacent in the arrangement direction and the 2 nd space 27 formed in the other are combined to form the yarn running space 25. Since the yarn Y moving around during the crossing comes into contact with the inner peripheral surface of the yarn running space 25, polishing or the like may be performed to be able to receive the contact with the yarn Y. In this case, in the above configuration, the first space 26 and the second space 27 are exposed to the outside before the crossovers 24 are adjacently arranged, and therefore, the inner peripheral surfaces of the first space 26 and the second space 27 can be easily subjected to polishing or the like.

(other embodiments).

A modification example in which various modifications are applied to the above embodiment will be described.

In the above embodiment, the interlacing device 5 is a so-called multi-end type interlacing device that imparts interlacing to a plurality of yarns Y, but the interlacing device 5 may be a so-called single-end type interlacing device that imparts interlacing to a single yarn Y.

In the above embodiment, the cover member 40 is configured to include the lid 41 and the wire pressing portion 42. However, the thread pressing portion 42 is not essential, and the loose thread Y may be omitted as long as it does not fly out of the thread insertion gap 30. Further, the cover member 40 does not need to be separated from the crosswinding portion 21, and a part of the cover member 40 may contact the crosswinding portion 21 as long as the biting of the yarn Y can be prevented. The lid 41 may be shaped to conform to the mountain shape of the distal end of the crosser 24. Further, the cover 41 and the wire pressing portion 42 may not be integrally formed but may be formed of different members.

In the above embodiment, the thread running space 25 has a symmetrical shape with respect to the center line C of the fluid ejection hole 28, and the thread insertion gap 30 is formed in a direction crossing the center line C. However, the shapes and relative positional relationships of the yarn advancing space 25, the fluid jet hole 28, and the yarn insertion gap 30 are not limited to these.

In the above embodiment, the cover member 40 is configured to be movable between the first position and the second position. However, the cover member 40 is not necessarily configured to be movable, as long as it is detachably attached to at least the winding unit 21 by fixing with a bolt, fitting by elasticity of the material of the cover member 40, or the like.

In the above embodiment, the thread insertion gap 30 is formed between 2 crossers 24 adjacent in the arrangement direction. However, the thread insertion gap 30 may be formed inside 1 crosser 24.

In the above embodiment, the first space 26 formed in one of the 2 crossmembers adjacent in the arrangement direction and the second space 27 formed in the other are combined to form the yarn running space 25. However, as in the interlacing portion 51 shown in fig. 7, the thread running space 55 may be formed inside 1 interlacing material 54. The structure of the interlace unit 51 will be described below.

The plurality of crossovers 54 are arranged adjacent to each other in the arrangement direction to constitute the crossovers 51. The crosser 54 is formed with a yarn running space 55 penetrating in the yarn running direction. The cross-sectional shape of the yarn running space 55 is an oblong shape having a long axis in the height direction. However, the cross-sectional shape of the yarn running space 55 may be another shape. On the left side of the thread running space 55, a thread insertion space 56 is formed over the entire region in the thread running direction. The thread insertion space 56 is located at the center of the thread running space 55 in the height direction, and the right end of the thread insertion space 56 communicates with the thread running space 55.

A fluid injection hole 58 for injecting fluid into the yarn running space 55 formed in the crosser 54 adjacent to the right side is formed at the right end portion of the crosser 54. The fluid ejection hole 58 is located at the center of the crosser 54 in the yarn traveling direction, and is formed at substantially the same position as the yarn insertion space 56 in the height direction. The fluid injection hole 58 communicates with the wire insertion space 56 at the right end portion and communicates with the fluid supply hole 59 at the left end portion. The fluid supply hole 59 is formed in the height direction inside the crossovers 54. The fluid supply hole 59 communicates with the fluid passage 39 formed inside the base 23. A fluid supplied from a fluid supply source, not shown, is injected from a fluid injection hole 58 to the filament running space 55 through the filament insertion space 56 via the fluid passage 39 and the fluid supply hole 59.

The left surface of the crosser 54 is formed slightly to the right of the portion on the tip side (upper side in fig. 7) of the yarn insertion space 56 and the portion on the base end side (lower side in fig. 7) of the yarn insertion space 56. In addition, the right surface of the crossroad member 24 is flush. Therefore, when the 2 crossovers 54 are abutted in the arrangement direction, the thread insertion gap 60 is formed between the 2 crossovers 54. Since the thread insertion gap 60 communicates with the thread running space 55 via the thread insertion space 56, the thread Y can be inserted into the thread running space 55 from the thread insertion gap 60. The entanglement unit 51 configured as described above can also be provided with the cover member 40 covering the yarn insertion gap 60 as in the above-described embodiment, thereby improving entanglement performance.

Claims

1. An interlacing device comprising an interlacing unit having a yarn running space formed along a yarn running direction and a fluid ejection hole for ejecting a fluid into the yarn running space, wherein the yarn running in the yarn running space is interlaced by the fluid ejected from the fluid ejection hole,

a yarn insertion gap for inserting the yarn into the yarn advancing space is formed in the crossing portion,

a cover member covering the thread insertion gap is disposed at a position separated from the thread running space;

the cover member has a cover portion that covers the yarn insertion gap at a position away from the winding portion;

the cover member further includes, on the outer side of both end surfaces of the yarn passing portion in the yarn running direction, yarn pressing portions formed so as to overlap the yarn passing portion when viewed from the yarn running direction;

the yarn pressing portion is disposed at a position spaced outward from both end surfaces of the yarn crossing portion in the yarn running direction, and is formed to overlap the yarn crossing portion only on the side of the yarn insertion gap with respect to the yarn running space when viewed from the yarn running direction.

2. The crosswinding apparatus according to claim 1,

the yarn running space has a shape symmetrical with respect to a center line of the fluid injection hole in a cross section orthogonal to the yarn running direction, and the yarn insertion gap is formed along a direction intersecting the center line.

3. Interlacing device according to claim 1 or 2,

the cover member is movable between a 1 st position and a 2 nd position, the 1 st position being a position covering the yarn insertion gap, and the 2 nd position being a position ensuring an open space between the cover member and the yarn winding portion and allowing the yarn to be inserted into the yarn insertion gap from the open space.

4. Interlacing device according to claim 1 or 2,

a plurality of interlacing members each having the yarn running space and the fluid jet hole are arranged in an arrangement direction orthogonal to the yarn running direction to form the interlacing portion,

the interlacing unit imparts interlacing to a plurality of yarns running in the plurality of yarn running spaces.

5. The crossroad apparatus according to claim 3,

6. The interlacing device according to claim 4,

the yarn insertion gap is formed between 2 adjacent crossovers in the arrangement direction.

7. The crossroad apparatus according to claim 5,

8. The interlacing device according to claim 4,

the 1 st space formed on one side of the 2 crossovers adjacent in the arrangement direction and the 2 nd space formed on the other side are combined to form the yarn running space.

9. Spooling device of any of claims 5 to 7,

10. Interlacing device according to claim 1 or 2,

the cover portion is planar.