CN115142146A

CN115142146A - Spinning traction device

Info

Publication number: CN115142146A
Application number: CN202210263705.7A
Authority: CN
Inventors: 森永辽; 北山太; 小林秀平
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2021-03-31
Filing date: 2022-03-17
Publication date: 2022-10-04
Also published as: JP2022159163A; EP4067277A1

Abstract

The invention provides a spinning traction device, which is easy to carry out yarn hanging operation on a yarn channel limiting yarn guide. The spinning traction device (1) is configured to wind a plurality of yarns (Y) spun from a spinning device (2) by a yarn winding device (4), and comprises: a thread passage limiting thread guide (7) having a plurality of groove sections (71) arranged in the left-right direction orthogonal to the thread advancing direction in which the plurality of threads (Y) advance, and limiting the plurality of threads (Y) arranged in the left-right direction from moving in the left-right direction by advancing the plurality of threads (Y) in the plurality of groove sections (71); and a positioning section that positions the suction port (40 a) of the suction gun (40) at a position downstream of the yarn passage restricting guide (7) in the yarn advancing direction and is a predetermined position at which yarn can be threaded onto the yarn passage restricting guide (7).

Description

Spinning traction device

Technical Field

The invention relates to a spinning traction device with a yarn channel limiting yarn guide.

Background

Conventionally, a spinning draft device configured to wind a plurality of yarns spun from a spinning device by a yarn winding device is known. For example, patent document 1 discloses a spinning traction device including a plurality of rollers for drawing a plurality of yarns spun from a spinning device, and a yarn winding device for winding the plurality of yarns drawn by the rollers to form a package.

The spinning draft device of patent document 1 includes a comb-shaped yarn passage restricting guide composed of a plurality of grooves aligned in the arrangement direction corresponding to a plurality of yarns. The plurality of threads travel in the plurality of grooves, respectively, thereby determining the intervals between the plurality of threads wound around the roller and restricting the plurality of threads aligned in the alignment direction from moving in the alignment direction.

Patent document 1: japanese patent laid-open publication No. 2013-057148

When a plurality of yarns spun from a spinning device are spun to a spinning draw-off device, a suction gun is used to intensively suck the plurality of yarns. Therefore, when the yarn is caught by the yarn passage regulating guide as described above, a suction gun that sucks a plurality of yarns in a concentrated manner is also used. Conventionally, an operator manually performs a threading operation of a yarn guide for regulating a yarn guide to a yarn passage while holding a yarn suction port of a suction gun at an appropriate operation position.

However, when the suction port of the suction gun is disposed at an appropriate working position, not only time is required, but it is also difficult to continuously hold the suction port of the suction gun at the appropriate working position during the yarn threading work. When it takes time to hang the yarn, the waste yarn is increased accordingly, and the production cost is also increased accordingly.

Disclosure of Invention

The invention aims to provide a spinning traction device which can easily carry out yarn hanging operation on a yarn channel limiting yarn guide.

The spinning traction device of claim 1 is configured to wind a plurality of yarns spun from a spinning device by a yarn winding device, and is characterized by comprising: a yarn passage restricting guide having a plurality of grooves arranged in an arrangement direction orthogonal to a yarn advancing direction in which the plurality of yarns advance, the yarn passage restricting guide restricting the plurality of yarns arranged in the arrangement direction from moving in the arrangement direction by advancing the plurality of yarns in the plurality of grooves; and a positioning unit that positions a suction port of the suction gun at a position downstream of the yarn passage restricting yarn guide in the yarn advancing direction and at a predetermined position where the yarn can be threaded onto the yarn passage restricting yarn guide.

According to the present invention, when the yarn threading operation of the yarn threading device to the yarn path is restricted, the suction port of the suction gun can be positioned at a predetermined position where the yarn threading operation to the yarn threading device can be restricted by the positioning portion. Therefore, it is not necessary to take time to dispose the suction port of the suction gun at an appropriate working position. Further, since the suction port is disposed in the positioning portion and the suction gun is held, it is possible to eliminate the difficulty of holding the suction gun continuously during the yarn hooking work. Therefore, the thread hanging operation of the thread passage limiting thread guide can be easily performed.

The spinning draft device according to claim 2 is the spinning draft device according to claim 1, wherein the predetermined position is determined as follows: the plurality of threads sucked by the suction port of the suction gun positioned by the positioning part overlap the plurality of grooves when viewed from a direction orthogonal to both the running direction of the threads and the arrangement direction.

According to the present invention, the suction port of the suction gun is positioned by the positioning portion, whereby the plurality of threads sucked by the suction port of the suction gun positioned by the positioning portion overlap the plurality of groove portions when viewed from the orthogonal direction. Therefore, when the yarn hooking operation of the yarn guide to the yarn passage restriction yarn guide is performed, the position of each of the plurality of yarns in the arrangement direction does not need to be adjusted, and therefore the yarn hooking operation of the yarn guide to the yarn passage restriction yarn guide can be performed more easily.

The spinning draft apparatus according to claim 3 is characterized in that, in claim 1 or 2, a yarn oscillation suppressing member that comes into contact with the plurality of yarns sucked by the suction port of the suction gun positioned by the positioning portion is disposed between the yarn passage regulating guide and the positioning portion in the yarn advancing direction.

A swirling flow is generated inside the suction gun. When the yarn oscillation due to the swirling flow is transmitted to the yarn running near the yarn passage regulating yarn guide on the upstream side of the positioning portion in the yarn running direction, the yarn hooking operation to the yarn passage regulating yarn guide becomes difficult. According to the present invention, by disposing the yarn oscillation suppressing member that contacts the plurality of yarns between the yarn passage restricting guide and the positioning portion, it is possible to suppress the transmission of yarn oscillation due to the swirling flow generated inside the suction gun to the plurality of yarns running near the yarn passage restricting guide. Therefore, the thread guide for limiting the thread passage can be hung more easily.

The spinning draft apparatus according to claim 4 is characterized in that, in claim 3, when the suction port of the suction gun is positioned by the positioning portion, an angle formed by the plurality of yarns running on an upstream side in the running direction of the yarns from the yarn oscillation suppressing member and the plurality of yarns running on a downstream side in the running direction of the yarns from the yarn oscillation suppressing member and an angle formed by a side where the yarn oscillation suppressing member is arranged are 165 degrees or less as viewed in the arrangement direction.

According to the present invention, the yarn chatter suppressing member can be pressed against the plurality of yarns more strongly than in the case where the angle formed by the plurality of yarns running on the upstream side in the yarn running direction of the yarn chatter suppressing member and the plurality of yarns running on the downstream side in the yarn running direction of the yarn chatter suppressing member is larger than 165 degrees when viewed from the arrangement direction. This makes it possible to more reliably prevent the yarn hunting caused by the swirling flow generated inside the suction gun from being transmitted to the plurality of yarns running near the yarn guide having the yarn passage restriction.

The spinning draft device according to claim 5 is characterized in that, in the invention according to

claim

3 or 4, the yarn oscillation suppressing member is capable of retreating from the yarn path of the plurality of yarns when the yarns are wound by the yarn winding device.

According to the present invention, when the yarn is wound on the yarn winding device after the yarn hooking operation of the yarn passage regulating guide is completed, the yarn oscillation suppressing member can be prevented from coming into contact with the running yarn. This prevents the yarn from being degraded due to contact with the yarn wobble suppressing member.

The spinning draft device according to claim 6 is characterized in that, in the inventions 1 to 5, the positioning portion is capable of retreating from the yarn passage of the plurality of yarns when the yarns are wound by the yarn winding device.

According to the present invention, when the yarn is wound on the yarn winding device after the yarn hooking operation of the yarn guide is completed, the contact of the positioning portion with the advancing yarn can be avoided. This prevents the quality of the yarn from being degraded due to contact with the positioning portion.

The spun yarn traction device according to claim 7 is characterized in that, in the invention according to

claim

3 or 4, the positioning portion and the yarn oscillation suppressing member are disposed at positions not overlapping yarn passages of the plurality of yarns when the yarns are wound by the yarn winding device.

According to the present invention, when the yarn is wound by the yarn winding device after the yarn hooking operation of the yarn guide is completed, the positioning portion and the yarn oscillation suppressing member can be prevented from contacting the running yarn. This prevents the yarn from being degraded by contact with the positioning part and the yarn oscillation suppressing member.

The spinning draft device according to claim 8 is characterized in that the spinning draft device further includes a plurality of guide yarn guides which are arranged at equal intervals along the arrangement direction below the spinning device and which guide the plurality of yarns spun from the spinning device independently, and the yarn passage restricting yarn guides are arranged below the plurality of guide yarn guides so that the plurality of yarns guided independently by the plurality of guide yarn guides are collected at equal intervals in the arrangement direction.

In the present invention, the plurality of threads spun from the spinning device are guided by the plurality of guide yarn guides and arranged at equal intervals in the arrangement direction. Further, since the plurality of threads guided by the plurality of guide thread guides are directed toward the suction port of the suction gun at the shortest distance, the thread passage regulating thread guides are equally spaced apart from each other even during the thread hanging operation to the thread passage regulating thread guides. Therefore, the thread hooking operation of the thread passage regulating thread guide can be easily performed. On the other hand, the plurality of yarns guided by the guide yarn guide are bundled at the suction port, and the intervals between the plurality of yarns become narrower from the upstream side to the downstream side in the yarn advancing direction. The yarn passage regulating guide disposed in a region where the distance between the adjacent yarns becomes narrower from the upstream side to the downstream side in the yarn running direction is more difficult to perform the yarn hooking operation than the yarn passage regulating guide disposed in a region where the adjacent yarns run substantially parallel to each other. According to the present invention, even in an area where the threading work is difficult as in the past, the threading work can be more easily performed by providing the positioning portion.

The spinning draft device according to claim 9 is characterized in that, in the 8 th invention, the positioning portion is movable in a vertical direction.

In general, the vertical position of the guide wire guide in the spinning draft device is appropriately adjusted according to the type of yarn spun from the spinning device. When the position of the guide wire guide in the vertical direction is changed, it is also necessary to change the position of the positioning portion in the vertical direction, which defines the predetermined position for positioning the suction port of the suction gun. According to the present invention, the position of the positioning portion in the vertical direction can be appropriately adjusted in accordance with the position of the guide in the vertical direction. Thus, even if the position of the guide wire guide is changed, the positioning portion can be arranged at an appropriate position, and the wire hooking operation of the wire passage regulating wire guide can be further easily performed.

The spinning draft device according to claim 10 is characterized in that the positioning portion is inclined with respect to a horizontal plane in the 1 st to 9 th aspects.

According to the present invention, the suction gun is disposed so that the suction port faces obliquely upward from below with respect to the positioning portion inclined with respect to the horizontal plane, whereby the suction gun can be supported from below along the inclination, and therefore the suction gun having a large weight can be easily supported. This makes it possible to more easily perform the threading operation.

The spinning draft device according to claim 11 is the spinning draft device according to any one of claims 1 to 10, wherein the positioning portion is movable along the arrangement direction.

According to the present invention, the position of the positioning portion in the arrangement direction can be appropriately adjusted. Therefore, the position of the positioning portion can be adjusted so as to define a predetermined position determined such that the plurality of threads drawn by the suction port of the suction gun positioned by the positioning portion overlap the plurality of grooves when viewed from the orthogonal direction. Thus, the yarn hooking operation of the yarn passage regulating guide can be further easily performed.

The spinning draft device according to claim 12 is characterized in that the positioning portion has a V-shaped cross-sectional shape in the 1 st to 11 th aspects.

According to the present invention, the tip portion of the suction gun including the suction port is disposed in the portion of the positioning portion having the V-shaped cross section, whereby the tip portion of the suction gun including the suction port can be prevented from moving during the yarn threading operation. Therefore, the suction gun can be easily kept during the threading work, and the threading work can be more easily performed on the thread passage regulating thread guide.

ADVANTAGEOUS EFFECTS OF INVENTION

By facilitating the yarn threading work, the yarn threading work time can be shortened, and the production cost can be reduced because the waste yarn can be reduced.

Drawings

Fig. 1 is a front view of the spinning draft device according to the present embodiment.

Fig. 2 is a side view of the positioning portion when the guide is hung to the wire passage.

Fig. 3 is a side view of the positioning portion when the yarn winding device winds the yarn.

Fig. 4 is a front view of the positioning portion when the thread guide is restricted from threading to the thread passage.

Fig. 5 is an enlarged perspective view of the positioning portion.

Fig. 6 is a graph showing the average yarn hanging time of the yarn guide for restricting the yarn passage in the examples and comparative examples.

Fig. 7 is a side view of the positioning portion according to modification 1 when the threading of the thread guide is restricted to the thread passage.

Fig. 8 is a side view of the positioning portion according to the first modification 1 when the yarn winding device winds the yarn.

Fig. 9 is an enlarged perspective view of the positioning portion of modification 1.

Fig. 10 is an enlarged perspective view of the positioning portion of modification 2.

Fig. 11 is a side view of the positioning portion in another modification for restricting the threading of the guide wire to the wire passage.

Description of the symbols

1: a spinning traction device; 2: a spinning device; 4: a wire take-up device; 6: a guide wire guide; 7: a wire channel restriction guide; 17: a main body of the machine body; 31: a positioning part; 32: a thread sway suppression member; 40: a suction gun; 40a: a suction port; 71: a groove part; 131: a positioning part; 132: a thread sway suppression member; 231: a positioning part; 232: a wire oscillation suppressing member.

Detailed Description

(integral construction of spinning draft gear 1)

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a schematic configuration diagram of a spinning draft device 1. Hereinafter, the vertical direction of the paper in fig. 1 is referred to as the vertical direction, and the horizontal direction of the paper is referred to as the horizontal direction. Note that a direction perpendicular to the paper surface in fig. 1 is a front-rear direction, and a front side in the paper surface is a front side. Hereinafter, the above directional terms are used as appropriate for explanation.

The spinning traction device 1 is configured to wind a plurality of yarns Y spun from the spinning device 2 by the yarn winding device 4. The spinning device 2 spins the molten polymer as a yarn Y downward. As shown in fig. 1, the spinning and drawing apparatus 1 includes a plurality of finish guides 5 each having a finish nozzle, a plurality of guide guides 6, a yarn passage regulating guide 7, a positioning portion 31, a yarn oscillation suppressing member 32, two

godet rollers

11 and 12, a spinning and drawing apparatus 3, and a yarn winding apparatus 4. The spinning device 2, and the plurality of finish yarn guides 5 and the plurality of guide yarn guides 6 disposed below the spinning device are disposed on the upper layer (two layers). The yarn passage regulating guide 7, the two

godet rollers

11 and 12, the spin draw unit 3, and the yarn take-up unit 4 are disposed in the lower layer (one layer).

The plurality of finish yarn guides 5 are disposed below the spinning device 2, and apply a finish to each of the plurality of yarns Y spun downward from the spinning device 2. The guide guides 6 are disposed at equal intervals in the left-right direction below the finish guides 5, and guide the finish-applied threads Y independently.

The thread passage regulating guide 7 is disposed below the plurality of guide thread guides 6, and collects the plurality of threads Y guided by the plurality of guide thread guides 6 independently at equal intervals in the left-right direction. The yarn passage regulating guide 7 has a plurality of groove portions 71 (see fig. 4) arranged in an arrangement direction orthogonal to the running direction of the plurality of yarns Y, that is, in the right-left direction. The front side of the groove 71 is open. The plurality of threads Y travel in the plurality of groove portions 71, respectively, thereby determining the intervals in the left-right direction and restricting the plurality of threads Y arranged in the left-right direction from moving in the left-right direction.

As shown in fig. 2, the yarn passage regulating guide 7 is attached to the front side of the body 17 of the spinning draft device 1 via a coupling member 18. Further, a wire restricting rod 72 is attached to the wire passage restricting guide 7. As shown in fig. 2, the thread restricting lever 72 is configured to guide the plurality of threads Y to the thread passage restricting thread guide 7 when threading the plurality of threads to the thread passage restricting thread guide 7, and to prevent the plurality of threads Y from being separated from the thread passage restricting thread guide 7 after threading the plurality of threads Y to the thread passage restricting thread guide 7. As shown in fig. 4, the wire restricting rod 72 extends in the left-right direction across the plurality of groove portions 71. The wire restricting lever 72 is cantilevered at the left end to the front end of the lever 73. The lever 73 is rotatable about a shaft 74 extending in the left-right direction. When the yarn is threaded onto the yarn passage regulating guide 7, the yarn regulating rod 72 is positioned at a regulating position on the front side of the plurality of yarns Y, as shown in fig. 2. When the yarn Y is wound by the yarn winding device 4, as shown in fig. 3, the lever 73 rotates clockwise about the shaft 74 as viewed in the left-right direction, and the yarn restricting lever 72 is thereby positioned at the restriction release position below and rearward of the position of the yarn restricting lever 72 at the restriction position. In a state where the thread restricting lever 72 is located at the restriction releasing position, the thread restricting lever 72 does not interfere with the thread Y and does not restrict the introduction of the thread Y into the groove portion 71 of the thread passage restriction guide 7.

The positioning portion 31 is disposed downstream of the yarn passage regulating guide 7 in the yarn advancing direction. The thread hooking operation of the thread guide 7 for restricting the plurality of threads Y to the thread passage is performed by the operator in a state where the threads Y are sucked and held by the suction gun 40 (see fig. 3). The positioning unit 31 positions the suction port 40a of the suction gun 40 at a position where the yarn can be threaded onto the yarn passage regulating guide 7. The thread sway suppression member 32 is disposed between the thread passage regulating guide 7 and the positioning portion 31 in the thread running direction. The positioning portion 31 and the wire-sway suppression member 32 will be described in detail later.

As shown in fig. 1, the

godet rollers

11 and 12 are disposed on the downstream side in the yarn running direction of the yarn passage regulating guide 7 and the positioning portion 31, and are rotationally driven by a motor not shown. The plurality of yarns Y spun from the spinning device 2 are wound around the godet roller 11 via the finish yarn guide 5, the guide yarn guide 6, and the yarn passage regulating yarn guide 7, and are sent to the spinning and drawing device 3 by the godet roller 11. The plurality of yarns Y heated and stretched by the spinning stretching device 3 are wound around the godet roller 12, and are fed from the godet roller 12 to the yarn winding device 4.

The spinning and drawing device 3 is a device for heating and drawing a plurality of yarns Y, and is disposed below the spinning device 2. The spinning and drawing apparatus 3 includes an incubator 20 and five godet rollers 91 to 95 housed inside the incubator 20. A yarn inlet 20a for introducing the plurality of yarns Y into the heat insulating box 20 is formed in a lower portion of the right side surface portion of the heat insulating box 20, and a yarn outlet 20b for discharging the plurality of yarns Y to the outside of the heat insulating box 20 is formed in an upper portion of the right side surface portion of the heat insulating box 20.

The three lower godet rollers 91 to 93 are preheating rollers for preheating before drawing the plurality of yarns Y, and the two

upper godet rollers

94 and 95 are texturizing rollers for heat-setting the plurality of drawn yarns Y. The roll surface temperature of the upper two godet rolls 94, 95 is set to a higher temperature than the roll surface temperature of the lower three godet rolls 91 to 93. The two

upper godet rollers

94 and 95 have a higher yarn feed speed than the three lower godet rollers 91 to 93.

The plurality of yarns Y introduced into the incubator 20 through the yarn introducing port 20a are first preheated to a temperature at which the yarns Y can be stretched while being conveyed by the godet rollers 91 to 93. The plurality of preheated yarns Y are drawn by the difference in yarn feeding speed between the

godet rollers

93 and 94. Further, the plurality of yarns Y are heated to a higher temperature while being conveyed by the

godet rollers

94 and 95, and the drawn state is heat-set. The plurality of yarns Y thus stretched are led out of the incubator 20 through the yarn lead-out port 20b.

The yarn winding device 4 is a device for winding a plurality of yarns Y, and is disposed below the spinning and drawing device 3. The yarn winding device 4 includes a bobbin holder 13, a touch roller 14, and the like. The bobbin holder 13 has a cylindrical shape extending in the front-rear direction and is rotationally driven by a motor, not shown. A plurality of bobbins B are mounted on the bobbin holder 13 in an axially aligned state. The yarn winding device 4 simultaneously winds a plurality of yarns Y around a plurality of bobbins B by rotating the bobbin holder 13, thereby producing a plurality of packages P. The contact roller 14 comes into contact with the surfaces of the plurality of packages P to apply a predetermined contact pressure, thereby adjusting the shape of the packages P.

(positioning part 31)

Next, the positioning unit 31 will be described in detail. The positioning portion 31 positions the suction port 40a of the suction gun 40 at a predetermined position downstream of the yarn passage regulating guide 7 and at which yarn can be hooked onto the yarn passage regulating guide 7. As shown in fig. 4, the predetermined position is a position determined as follows: the plurality of threads Y sucked by the suction port 40a of the suction gun 40 positioned by the positioning part 31 overlap the plurality of groove parts 71 when viewed from the front-rear direction (orthogonal direction of the present invention).

As shown in fig. 5, the positioning portion 31 is attached to the tip end portion of the arm portion 51 extending in the front-rear direction. The rear end of the arm 51 is supported by a lifting plate 53 in a rotatable manner via a rotating shaft 52 having the left-right direction as the axial direction. When the yarn is threaded onto the yarn passage regulating guide 7, the arm 51 extends forward from the elevating plate 53 as shown in fig. 2 and 5. At this time, the positioning portion 31 attached to the distal end portion of the arm portion 51 can position the suction port 40a of the suction gun 40 at the predetermined position. When the yarn Y is wound by the yarn winding device 4, the arm 51 rotates around the rotation shaft 52 so that the tip end portion is positioned downward as shown in fig. 3. At this time, the positioning portion 31 retreats from the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

The lifting plate 53 is fixed to the fixing plate 54 by a fixing member 55. More specifically, the fixed plate 54 is formed with a lifting groove 57 extending in the vertical direction. Further, the lifting plate 53 is disposed on the rear side of the fixed plate 54, the 2 nd lifting plate 56 is disposed on the front side of the fixed plate 54, and the fixed plate 54 is sandwiched between the lifting plate 53 and the 2 nd lifting plate 56. The fixing member 55 penetrates the 2 nd elevating plate 56, the elevating groove 57, and the elevating plate 53 in the front-rear direction, and thereby the elevating plate 53 is fixed to the fixing plate 54. The fixing member 55 is, for example, a screw. The fixing plate 54 is attached to the main body 17.

Further, in a state where the fixing member 55 is caused to loosen the fixing of the elevation plate 53 to the fixed plate 54, the elevation plate 53 and the 2 nd elevation plate 56 can be moved in the vertical direction by moving the fixing member 55 up and down along the elevation groove 57. As the lifting plate 53 moves in the vertical direction, the arm 51 and the positioning portion 31 also move in the vertical direction. That is, in the present embodiment, the positioning portion 31 is movable in the vertical direction. By moving the positioning portion 31 in the vertical direction, the plurality of groove portions 71 in the thread passage regulating guide 7 can be aligned with the plurality of threads Y in the horizontal direction when the threading operation is performed to the thread passage regulating guide 7.

Further, as shown in fig. 2, the positioning portion 31 is configured to be inclined with respect to a horizontal plane when the yarn is threaded onto the yarn path regulating guide 7. Specifically, the positioning portion 31 has a shape extending in the front-rear direction, and is inclined such that the front end portion is positioned below the rear end portion. In the present embodiment, when the yarn is hung on the yarn path regulating guide 7, as shown in fig. 2, the suction gun 40 is disposed from below with respect to the inclined positioning portion 31 such that the suction port 40a faces obliquely upward. Furthermore, as shown in fig. 4, the positioning portion 31 has a V-shaped cross-sectional shape so as to be V-shaped when viewed from the front-rear direction. In the present embodiment, when the yarn is threaded onto the yarn passage regulating guide 7, the tip portion of the suction gun 40 including the suction port 40a is disposed in the portion of the positioning portion 31 having the V-shaped cross section.

(yarn oscillation suppressing member 32)

Next, the yarn oscillation suppressing member 32 will be described in detail. As shown in fig. 2 and 4, the thread sway suppression member 32 is disposed between the thread passage regulating guide 7 and the positioning portion 31 in the thread running direction. The plurality of yarns Y sucked through the suction port 40a of the suction gun 40 positioned by the positioning part 31 come into contact with the yarn wobble suppressing member 32.

In the present embodiment, the wire sway suppression member 32 is attached to the rear portion of the positioning portion 31 and moves integrally with the positioning portion 31. As described above, the positioning portion 31 can retreat from the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4. Therefore, as shown in fig. 3, the thread sway suppression member 32 that moves integrally with the positioning portion 31 can also retreat from the thread passages of the plurality of threads Y when the thread Y is wound by the thread winding device 4. Further, as described above, the positioning portion 31 is movable in the up-down direction. Therefore, the wire-sway suppression member 32 that moves integrally with the positioning portion 31 can also move in the vertical direction.

The wire oscillation suppressing member 32 has a cylindrical shape with the axis in the left-right direction. The plurality of yarns Y sucked through the suction port 40a of the suction gun 40 positioned by the positioning unit 31 contact the peripheral surface of the yarn sway suppression member 32.

As shown in fig. 2, when the suction port 40a of the suction gun 40 is positioned by the positioning portion 31, when viewed from the left-right direction, the angle formed by the plurality of yarns Y running on the upstream side in the yarn running direction from the yarn waving prevention member 32 and the plurality of yarns Y running on the downstream side in the yarn running direction from the yarn waving prevention member 32 is 165 degrees or less, and the angle θ of the side on which the yarn waving prevention member 32 is disposed is set. In the present embodiment, the angle at the side where the yarn sway suppression member 32 is arranged when viewed in the left-right direction is an angle at the rear side which is a side close to the main body 17 in the front-rear direction, out of angles formed by the plurality of yarns Y running on the upstream side in the yarn running direction from the yarn sway suppression member 32 and the plurality of yarns Y running on the downstream side in the yarn running direction from the yarn sway suppression member 32, assuming that the plurality of yarns Y can be regarded as one yarn when viewed in the left-right direction.

(examples)

Next, the average yarn hanging time (seconds) to the yarn passage regulating guide 7 of comparative examples 1, 2, 3 and examples was compared. In comparative examples 1 to 3, the average yarn threading time was measured when the worker performed yarn threading work on the yarn passage regulating guide 7 of the spinning draft device 1 not having the configuration of the positioning portion 31 and the yarn oscillation suppressing member 32 of the above embodiment. In the example, the average yarn threading time when the worker performs the yarn threading operation on the yarn passage regulating guide 7 of the spinning and drawing device 1 having the same configuration as that of the above-described embodiment, that is, the spinning and drawing device 1 having the positioning portion 31 and the yarn oscillation suppressing member 32 was measured.

Comparative example 1 is an average yarn threading time when a skilled person who performs yarn threading operation of the yarn guide 7 to the yarn passage performs yarn threading operation. Comparative example 2 is an average yarn threading time when an experienced person who had experienced the yarn threading operation of the yarn guide 7 to the yarn passage performed the yarn threading operation. Comparative example 3 is an average yarn hanging time when a beginner who has not experienced the yarn hanging operation of the yarn passageway regulating guide 7 performs the yarn hanging operation. The examples are average stringing times when an experiencer and a beginner perform stringing operations, respectively. The skilled person is a person who can perform the stringing work and performs the stringing work every day. The experiencer means a person who can perform threading work but does not perform threading work every day. Beginners refer to people who have not performed a threading operation so far. The average yarn threading time in comparative example 1 is an average of yarn threading times taken by 1 skilled person a to perform 7 yarn threading operations. The average stringing time in comparative example 2 is a value obtained by averaging the average value of the stringing times taken when the experiential a performs two stringing operations and the stringing time taken when the experiential B performs 1 stringing operation. The average stringing time in comparative example 3 was a value obtained by averaging the average value of the stringing times taken by the beginner a for performing two stringing operations and the stringing time taken by the beginner B for performing 1 stringing operation. The average stringing time in the examples is an average value of the stringing times taken by the experiencer a and the beginner a for performing the stringing work twice, respectively.

As shown in fig. 6, the average stringing time was 12 seconds in comparative example 1, 20 seconds in comparative example 2, and 56 seconds in comparative example 3. That is, it is found that the shallower the experience of the yarn threading work, the more time is required for the yarn threading work of the yarn guide 7 to be restricted to the yarn passage. On the other hand, the average stringing time in the examples was 10 seconds. Therefore, it is understood that the time required for the yarn threading work of the yarn guide 7 to be restricted to the yarn passage is shortened regardless of the skill of the yarn threading work.

(Effect)

The spinning draft device 1 of the present embodiment includes: a thread passage limiting guide 7 having a plurality of groove portions 71 arranged in the left-right direction; and a positioning part 31 for positioning the suction port 40a of the suction gun 40 at a position downstream of the yarn passage regulating guide 7 in the yarn advancing direction and at a predetermined position where the yarn can be hooked on the yarn passage regulating guide 7. According to the present embodiment, at the time of the yarn threading operation of the yarn guide 7 to the yarn passage restriction, the suction port 40a of the suction gun 40 can be positioned by the positioning portion 31 at a predetermined position where the yarn threading operation can be performed to the yarn passage restriction yarn guide 7. Therefore, it is not necessary to take time to arrange the suction port 40a of the suction gun 40 at an appropriate working position. Further, since the suction port 40a is disposed in the positioning portion 31 and the suction gun 40 is held, it is possible to eliminate the difficulty of holding the suction gun 40 continuously during the yarn threading work. This makes it possible to easily perform the threading operation of the thread passage regulating guide 7.

In the present embodiment, the predetermined position is a position determined as follows: the plurality of threads Y sucked by the suction port 40a of the suction gun 40 positioned by the positioning part 31 overlap the plurality of groove parts 71 when viewed from the front-rear direction. According to the present embodiment, the suction port 40a of the suction gun 40 is positioned by the positioning portion 31, and thus the plurality of yarns Y sucked by the suction port 40a of the suction gun 40 positioned by the positioning portion 31 overlap the plurality of groove portions 71 when viewed from the front-rear direction. Accordingly, when the threading operation is performed on the yarn path regulating guide 7, it is not necessary to adjust the position of each of the plurality of yarns Y in the left-right direction, and therefore the threading operation can be performed on the yarn path regulating guide 7 more easily.

In the spinning and drawing device 1 of the present embodiment, the yarn-swaying suppressing member 32, which is in contact with the plurality of yarns Y sucked by the suction port 40a positioned by the positioning portion 31, is disposed between the yarn passage regulating guide 7 and the positioning portion 31 in the yarn running direction. A swirling flow is generated inside the suction gun 40. When the yarn oscillation due to the swirling flow is transmitted to the yarn Y running near the yarn passage regulating guide 7 on the upstream side of the positioning portion 31 in the yarn running direction, the yarn hooking operation to the yarn passage regulating guide 7 becomes difficult. According to the present embodiment, since the yarn oscillation suppressing member 32 that comes into contact with the plurality of yarns Y is disposed between the yarn passage restricting guide 7 and the positioning portion 31, it is possible to suppress the transmission of the yarn oscillation due to the swirling flow generated inside the suction gun 40 to the plurality of yarns Y running near the yarn passage restricting guide 7. This makes it possible to more easily perform the yarn hooking operation on the yarn passage regulating guide 7.

In the present embodiment, when the suction port 40a of the suction gun 40 is positioned in the positioning portion 31, an angle formed by the plurality of yarns Y running on the upstream side in the yarn running direction from the yarn waving prevention member 32 and the plurality of yarns Y running on the downstream side in the yarn running direction from the yarn waving prevention member 32 when viewed in the left-right direction, and an angle θ of the side on which the yarn waving prevention member 32 is arranged in the left-right direction, are 165 degrees or less. According to the present embodiment, the yarn chatter preventing member 32 can be strongly pressed against the plurality of yarns Y as compared with the case where the angle θ is larger than 165 degrees when viewed from the left-right direction. This can more reliably prevent the yarn oscillation due to the swirling flow generated inside the suction gun 40 from being transmitted to the plurality of yarns Y running near the yarn passage restricting guide 7.

Further, in the present embodiment, the thread sway suppression member 32 can retreat from the thread passages of the plurality of threads Y when the thread Y is wound by the thread winding device 4. According to the present embodiment, when the yarn Y is wound by the yarn winding device 4 after the completion of the yarn hooking operation by the yarn passage regulating guide 7, the yarn oscillation preventing member 32 can be prevented from contacting the running yarn Y. This prevents the quality of the yarn Y from being degraded due to contact with the yarn wobble suppressing member 32.

Further, in the present embodiment, the positioning portion 31 can retreat from the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4. According to the present embodiment, when the yarn Y is wound by the yarn winding device 4 after the yarn hooking operation of the yarn passage regulating guide 7 is completed, the contact of the positioning portion 31 with the running yarn Y can be avoided. This prevents the quality of the yarn Y from being degraded due to contact with the positioning portion 31.

The spinning draft device 1 according to the present embodiment further includes a plurality of guide yarn guides 6, the plurality of guide yarn guides 6 being arranged below the spinning device 2 at equal intervals in the left-right direction, and guiding the plurality of yarns Y spun from the spinning device 2 independently, respectively, and a yarn passage restricting yarn guide 7 being arranged below the plurality of guide yarn guides 6, and collecting the plurality of yarns Y guided independently by the plurality of guide yarn guides 6 at equal intervals in the left-right direction. In the present embodiment, the plurality of yarns Y spun from the spinning device 2 are guided by the plurality of guide guides 6 and arranged at equal intervals in the left-right direction. Further, since the plurality of yarns Y guided by the plurality of guide yarn guides 6 are directed toward the suction port 40a of the suction gun 40 at the shortest distance, the yarn path regulating yarn guides 7 are equally spaced apart from each other even during the yarn threading operation to the yarn path regulating yarn guides 7. Therefore, the yarn hooking operation of the yarn passage regulating guide 7 can be easily performed. On the other hand, the plurality of yarns Y guided by the plurality of guide yarn guides 6 are bundled at the suction port 40a, and the interval between the plurality of yarns Y is narrowed from the upstream side to the downstream side in the yarn running direction. The yarn hooking work is more difficult for the yarn passage regulating guide 7 disposed in a region where the distance between the mutually adjacent yarns Y becomes narrower from the upstream side to the downstream side in the yarn traveling direction than for the yarn passage regulating guide 7 disposed in a region where the mutually adjacent yarns Y travel substantially parallel. According to the present embodiment, even in an area where the threading work is difficult as in the related art, the threading work can be performed more easily by providing the positioning portion 31.

In the present embodiment, the positioning unit 31 is movable in the vertical direction. In general, the vertical position of the guide wire guide 6 in the spinning draft device 1 is appropriately adjusted according to the type of the yarn Y spun from the spinning device 2. When the position of the wire guide 6 in the up-down direction is changed, the position in the vertical direction of the positioning portion 31 that defines the predetermined position for positioning the suction port 40a of the suction gun 40 needs to be changed. According to the present embodiment, the vertical position of the positioning portion 31 can be appropriately adjusted according to the vertical position of the guide wire guide 6. Thus, even if the position of the wire guide 6 is changed, the positioning portion 31 can be disposed at an appropriate position, and the wire hooking operation of the wire passage regulating wire guide 7 can be performed more easily.

In the present embodiment, the positioning portion 31 is inclined with respect to the horizontal plane. According to the present embodiment, since the suction gun 40 is disposed from below with the suction port 40a directed obliquely upward with respect to the positioning portion 31 inclined with respect to the horizontal plane, the suction gun 40 can be supported from below along the inclination, and therefore the suction gun 40 having a large weight can be easily supported. This makes it possible to more easily perform the threading operation.

Further, in the present embodiment, the positioning portion 31 has a V-shaped cross-sectional shape. According to the present embodiment, the movement of the tip portion of the suction gun 40 including the suction port 40a during the yarn threading operation can be suppressed by disposing the tip portion of the suction gun 40 including the suction port 40a in the portion of the positioning portion 31 having the V-shaped cross section. Therefore, the suction gun 40 can be easily and continuously held during the threading work, and the threading work can be more easily performed on the yarn passage regulating guide 7.

(modification example)

A modified example of the above embodiment will be described below. However, the same reference numerals are given to members having the same configurations as those of the above-described embodiment, and the description thereof will be omitted as appropriate.

(modification 1)

In the above embodiment, the positioning portion 31 can retreat from the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4. However, the positioning portion 31 may be disposed at a position not overlapping with the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4. For example, in the modification 1 shown in fig. 7 to 9, the positioning portion 131 is attached to the lifting plate 153 and is disposed at a position not overlapping with the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

As shown in fig. 9, the lifting plate 153 is fixed to the fixing plate 154 by a fixing member 155. To describe in more detail, as shown in fig. 9, the fixed plate 154 is formed with a lifting groove 157 extending in the vertical direction. Further, the lifting plate 153 is disposed on the rear side of the fixing plate 154, the 2 nd lifting plate 156 is disposed on the front side of the fixing plate 154, and the fixing plate 154 is sandwiched between the lifting plate 153 and the 2 nd lifting plate 156. The fixing member 155 penetrates the 2 nd elevating plate 156, the elevating groove 157, and the elevating plate 153 in the front-rear direction, thereby fixing the elevating plate 153 to the fixing plate 154. The fixing member 155 is, for example, a screw. The fixing plate 154 is mounted on the body 17.

Further, in a state where the fixing member 155 is loosely fixed to the fixing plate 154, the fixing member 155 is moved up and down along the lifting groove 157, whereby the lifting plate 153 and the 2 nd lifting plate 156 can be moved up and down. The positioning part 131 moves in the vertical direction along with the vertical movement of the elevating plate 153. That is, in modification 1, the positioning portion 131 can move in the vertical direction. By moving the positioning portion 131 in the vertical direction, the plurality of groove portions 71 in the thread passage regulating guide 7 can be aligned with the plurality of threads Y in the horizontal direction during the thread hooking operation to the thread passage regulating guide 7. In the modification 1, even when the positioning portion 131 moves in the vertical direction, the positioning portion does not overlap the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

Further, as shown in fig. 7, the positioning portion 131 is configured to be inclined with respect to a horizontal plane when the yarn hooking of the yarn guide 7 is restricted to the yarn passage. In the modification 1, when the yarn hooking of the yarn guide 7 is restricted to the yarn passage, as shown in fig. 7, the suction gun 40 is disposed from below with respect to the positioning portion 131 inclined with respect to the horizontal plane so that the suction port 40a faces obliquely upward. Furthermore, as shown in fig. 9, the positioning portion 131 has a V-shaped cross-sectional shape so as to be V-shaped when viewed from the front-rear direction. In modification 1, when the yarn hooking of the yarn guide 7 is restricted to the yarn passage, the tip portion of the suction gun 40 including the suction port 40a is disposed in the portion of the positioning portion 131 having the V-shaped cross section.

In the above embodiment, the yarn oscillation suppressing member 32 has a cylindrical shape, but in the 1 st modification example, the yarn oscillation suppressing member 132 has a plate-like shape. The contact portion of the plate-like member with the plurality of threads Y is processed and treated so as not to be broken by the contact with the plurality of threads Y. The rear end portion of the wire oscillation suppressing member 132 is supported by the fixing plate 154 in a cantilever manner so as to be rotatable via a rotation shaft 141 having a left-right direction as an axial direction. When the threading of the thread guide 7 is restricted to the thread passage, the thread oscillation suppressing member 132 extends forward from the fixing plate 154 as shown in fig. 7. At this time, the plurality of yarns Y sucked through the suction port 40a of the suction gun 40 positioned by the positioning part 131 come into contact with the front side surface of the yarn sway suppression member 132. When the yarn Y is wound by the yarn winding device 4, the yarn oscillation suppressing member 132 rotates around the rotary shaft 141 so that the tip end portion is positioned downward as shown in fig. 8. At this time, the yarn oscillation suppressing member 132 is retracted from the yarn passage of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

As shown in fig. 7, when the suction port 40a of the suction gun 40 is positioned in the positioning portion 131, when viewed in the left-right direction, the angle formed by the plurality of yarns Y running upstream of the yarn running direction with respect to the yarn weaving inhibiting member 132 and the plurality of yarns Y running downstream of the yarn running direction with respect to the yarn weaving inhibiting member 132 is 165 degrees or less, and the angle θ' on the side where the yarn weaving inhibiting member 132 is disposed is 165 degrees or less. In addition, in the first modification 1, the angle of the side on which the yarn oscillation suppressing member 132 is disposed when viewed from the left-right direction is an angle on the rear side, which is the side closer to the main body 17, out of angles formed by the plurality of yarns Y running on the upstream side in the yarn running direction with respect to the yarn oscillation suppressing member 132 and the plurality of yarns Y running on the downstream side in the yarn running direction with respect to the yarn oscillation suppressing member 132, assuming that the plurality of yarns Y can be regarded as one yarn when viewed from the left-right direction.

In addition, although the wire sway suppression member 32 moves integrally with the positioning portion 31 in the above embodiment, the wire sway suppression member 132 does not move integrally with the positioning portion 131 in the 1 st modification. Therefore, the positioning portion 131 is configured to be movable in the vertical direction, but the wire sway suppression member 132 is configured not to move in the vertical direction.

In the modification 1, the positioning portion 131 is disposed at a position not overlapping with the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4. The thread sway suppression member 132 can retreat from the thread passages of the plurality of threads Y when the thread Y is wound by the thread winding device 4. Accordingly, when the yarn Y is wound around the yarn winding device 4 after the yarn hooking operation of the yarn passage regulating guide 7 is completed, the positioning portion 131 and the yarn sway suppression member 132 can be prevented from coming into contact with the running yarn Y. This can prevent the quality of the yarn Y from being degraded due to contact with the positioning portion 131 and the yarn wobble suppressing member 132.

The positioning portion 131 and the yarn oscillation suppressing member 132 may be disposed at positions not overlapping with the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

(modification 2)

Next, a 2 nd modification will be described with reference to fig. 10. The positioning portion 231 of the 2 nd modification is fixed to the lifting plate 253 by two fixing members 262. More specifically, as shown in fig. 10, the lifting plate 253 has an inclined portion 253a inclined upward as it goes forward, and left and right grooves 254 extending in the left-right direction are formed in the inclined portion 253a. The two fixing members 262 penetrate the positioning portion 231 and the left and right grooves 254 in a direction perpendicular to the inclined portion 253a, thereby fixing the positioning portion 231 to the inclined portion 253a of the rising and lowering plate 253. The fixing member 262 is, for example, a screw.

In addition, in a state where the fixing member 262 loosely fixes the positioning portion 231 to the rising and lowering plate 253, the fixing member 262 is moved along the left and right grooves 254, whereby the positioning portion 231 can be moved in the left and right direction (see the solid double-headed arrow in fig. 10).

In the modification 2, the positioning portion 231 has a V-shaped cross-sectional shape, and the inner side surface of the portion of the positioning portion 231 fixed to the inclined portion 253a, which has the V-shaped cross-sectional shape, is inclined with respect to the horizontal plane. In the modification 2, when the yarn hooking of the yarn guide 7 is restricted to the yarn path, the suction gun 40 is disposed from below with respect to the positioning portion 231 inclined with respect to the horizontal plane so that the suction port 40a faces obliquely upward.

The lifting plate 253 is fixed to the fixing plate 255 by a fixing member 257. More specifically, as shown in fig. 10, the fixing plate 255 is formed with a lifting groove 256 extending in the vertical direction. The fixing member 257 passes through the lifting plate 253 and the lifting groove 256 in the front-rear direction, thereby fixing the lifting plate 253 to the fixing plate 255. The fixing member 257 is, for example, a screw. The fixing plate 255 is attached to the main body 17.

Further, in a state where the fixing member 257 is made to loosen the fixing of the lifting plate 253 to the fixing plate 255, the lifting plate 253 can be moved in the vertical direction by raising and lowering the fixing member 257 along the lifting groove 256. The positioning part 231 moves in the vertical direction along with the vertical movement of the lifting plate 253. That is, in modification 2, the positioning part 231 is movable in the vertical direction. In the modification 2, even when the positioning part 231 is moved in the vertical direction, the yarn winding device 4 is also arranged at a position not overlapping with the yarn paths of the plurality of yarns Y when the yarns Y are wound.

In addition, in the 2 nd modification example, the wire sway suppression member 232 is a plate-like member. The plate-like member is processed and treated at the contact portion with the plurality of threads Y so as not to be broken by the contact with the plurality of threads Y. The rear end portion of the wire oscillation suppressing member 232 is supported in a cantilever manner by the upper end portion of the elevating plate 253 via a rotating shaft 241 whose left-right direction is an axial direction. When the threading of the thread guide 7 is restricted to the thread passage, the thread sway suppression member 232 extends forward from the lifting plate 253, as shown in fig. 10. At this time, the plurality of yarns Y sucked through the suction port 40a of the suction gun 40 positioned by the positioning part 231 come into contact with the front side surface of the yarn wobble suppressing member 232. When the yarn Y is wound by the yarn winding device 4, the yarn oscillation suppressing member 232 rotates around the rotation shaft 241 such that the tip end portion faces downward (see the solid arrow in fig. 10). At this time, the thread sway suppression member 232 retreats from the thread passages of the plurality of threads Y when the thread Y is wound by the thread winding device 4.

Further, the wire oscillation suppressing member 232 is movable in the vertical direction in accordance with the vertical movement of the lifting plate 253.

In modification 2, the positioning portion 231 is movable in the left-right direction. Accordingly, the position of the positioning portion 231 in the left-right direction can be appropriately adjusted. Therefore, the position of the positioning part 231 can be adjusted so that a predetermined position determined as follows can be specified: the plurality of yarns Y sucked by the suction port 40a of the suction gun 40 positioned by the positioning part 231 overlap the plurality of groove parts 71 when viewed from the front-rear direction. This makes it possible to more easily perform the yarn hooking operation on the yarn passage regulating guide 7.

In the modification 2, the positioning portion 231 and the yarn oscillation suppressing member 232 may be disposed at positions not overlapping with the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4, or may be retracted from the yarn paths of the plurality of yarns Y when the yarn Y is wound by the yarn winding device 4.

(other modification example)

The spinning draft device 1 of the present invention may not include the yarn oscillation suppressing member 32. The yarn passage regulating yarn guide 7 of the present invention does not have to be a yarn guide for converging a plurality of yarns Y guided independently by a plurality of guide yarn guides 6. For example, the yarn passage regulating guide 7 may be a guide arranged between two rollers (for example, godet rollers) at a position where the adjacent yarns Y run substantially parallel to each other.

The positioning portion of the present invention may not be inclined with respect to the horizontal plane, and may not have a V-shaped cross-sectional shape. For example, the positioning portion may have a U-shaped cross-sectional shape, \12467.

The yarn passage regulating guide 7 of the above embodiment has the groove portion 71 having an open front side, and bundles the plurality of yarns Y running in front of the yarn passage regulating guide 7 at equal intervals in the left-right direction. However, the wire passage restricting guide 7 is not limited in this manner. For example, as shown in fig. 11, the thread passage regulating guide 107 may have a groove portion having a rear opening, and a plurality of threads Y running behind the thread passage regulating guide 107 may be bundled so as to be equally spaced in the left-right direction. The yarn passage regulating guide 107 is attached to the front side of the body main body 17 via a coupling member 118 extending in the front-rear direction on the right side (back side in the drawing) of the plurality of yarns Y arranged in the left-right direction. In this case, as shown in fig. 11, when the suction port 40a of the suction gun 40 is positioned in the positioning portion 31, it is preferable that an angle formed by the plurality of yarns Y running on the upstream side in the yarn running direction from the yarn waving prevention member 32 and the plurality of yarns Y running on the downstream side in the yarn running direction from the yarn waving prevention member 32 when viewed from the left-right direction, and an angle θ ″ of the side on which the yarn waving prevention member 32 is arranged be 165 degrees or less. The angle of the side where the thread sway suppression member 32 is disposed when viewed from the left-right direction is an angle on the side close to the main body 17, that is, the rear side, out of angles formed by the plurality of threads Y running on the upstream side in the thread running direction from the thread sway suppression member 32 and the plurality of threads Y running on the downstream side in the thread running direction from the thread sway suppression member 32, assuming that the plurality of threads Y can be regarded as one thread when viewed from the left-right direction. The thread passage regulating guide 107 may be attached to the front side of the main body 17 via a coupling member 118 extending in the front-rear direction on the left side (front side in the paper plane) with respect to the plurality of threads Y arranged in the left-right direction.

In the present invention, the wire passage restricting guide 7 and the coupling member 18 may be integrated, and the wire passage restricting guide 107 and the coupling member 118 may be integrated.

Claims

1. A yarn winding device configured to wind a plurality of yarns spun from a spinning device by a yarn winding device, comprising:

a yarn passage restricting guide having a plurality of grooves arranged in an arrangement direction orthogonal to a yarn advancing direction in which the plurality of yarns advance, the yarn passage restricting guide restricting the plurality of yarns arranged in the arrangement direction from moving in the arrangement direction by advancing the plurality of yarns in the plurality of grooves; and

and a positioning part which positions a suction port of the suction gun at a position on a downstream side of the yarn passage restricting guide in the yarn advancing direction and is a predetermined position at which the yarn can be caught by the yarn passage restricting guide.

2. Spinning draft gear according to claim 1,

the predetermined position is determined as follows: the plurality of threads sucked by the suction port of the suction gun positioned by the positioning part overlap the plurality of grooves when viewed from a direction orthogonal to both the thread running direction and the arrangement direction.

3. Spinning draft gear according to claim 1 or 2,

a yarn oscillation suppressing member is disposed between the yarn passage regulating guide and the positioning portion in the yarn running direction, and the plurality of yarns sucked by the suction port of the suction gun positioned by the positioning portion come into contact with the yarn oscillation suppressing member.

4. Spinning draft gear according to claim 3,

when the suction port of the suction gun is positioned in the positioning portion, an angle formed by the plurality of yarns running on the upstream side in the running direction of the yarns with respect to the yarn weaving inhibiting member and the plurality of yarns running on the downstream side in the running direction of the yarns with respect to the yarn weaving inhibiting member when viewed in the arrangement direction is 165 degrees or less.

5. Spinning draft gear according to claim 3 or 4,

the yarn oscillation suppressing member is configured to be capable of retreating from a yarn passage of the plurality of yarns when the yarn winding device winds the yarns.

6. Spinning draft gear according to anyone of the claims 1 to 5,

the positioning portion is capable of retreating from a yarn passage of the plurality of yarns when the yarns are wound by the yarn winding device.

7. Spinning draft gear according to claim 3 or 4,

the positioning portion and the yarn oscillation suppressing member are disposed at positions not overlapping yarn passages of the plurality of yarns when the yarns are wound by the yarn winding device.

8. Spinning draft device according to one of the claims 1 to 7,

further comprising a plurality of guide yarn guides disposed at equal intervals along the arrangement direction below the spinning device and configured to guide the plurality of yarns spun from the spinning device independently from each other,

the thread passage restricting guide is disposed below the plurality of guide thread guides, and bundles a plurality of threads guided by the plurality of guide thread guides independently at equal intervals in the arrangement direction.

9. Spinning draft gear according to claim 8,

the positioning part can move along the vertical direction.

10. Spinning draft gear according to anyone of the claims 1 to 9,

the positioning part is inclined relative to the horizontal plane.

11. Spinning draft device according to one of the claims 1 to 10,

the positioning part can move along the arrangement direction.

12. Spinning draft device according to one of the claims 1 to 11,

the positioning part has a V-shaped cross section.