CN115467037A - Spinning traction device - Google Patents

Abstract

The invention provides a spinning draft device, which is lower in height than the conventional one. The yarn winding device is provided with a spinning traction part (6) for drawing and stretching a plurality of yarns (100) spun from a spinning machine, and a winding part (8) for winding the plurality of yarns (100) sent from the spinning traction part (6) to form a winding package. The spinning draft section (6) is provided with: a 1 st guide unit (10) that guides the plurality of yarns (100) to the downstream side in the yarn advancing direction; a stretching unit (28) provided with a plurality of rollers including at least one roller for stretching the plurality of threads (100) guided from the 1 st guide unit (10); and 2 nd guide sections (62, 70) for guiding the plurality of yarns (100) from the stretching section (28) to the winding section (8). The winding section (8) and the stretching section (28) are horizontally arranged. The 2 nd guide section has a 2 nd relaxation roller (62) and a distribution section (70), and the plurality of threads (100) from the stretching section (28) are conveyed to the winding section (8) via the distribution section (70) and the 2 nd relaxation roller (62).

Description

Spinning traction device

Technical Field

The present invention relates to a spinning and drawing apparatus for drawing a yarn spun from a spinning machine to form a package, and more particularly to a spinning and drawing apparatus for a yarn for industrial materials having a large fineness and requiring a large heating length.

Background

In a spinning and drawing device that draws a yarn spun from a spinning machine to form a winding package, a yarn hooking operation of hooking the yarn spun from the spinning machine to a winding section along a yarn path is required at the start of production.

In a general spinning and drawing apparatus, as disclosed in patent document 1 (see fig.1 in particular), for example, a processing unit including a plurality of rolls and the like is disposed below a spinning machine, and a winding unit is disposed below the processing unit. When the yarn hooking work is performed in such a spinning and drawing apparatus, a yarn hooking person who hooks yarn to each roller or the like (a person in an intermediate floor (one floor between the first floor and the second floor)) and a yarn hooking person who hooks yarn to a winding unit disposed below each roller or the like are required as operators for 1 floor.

Patent document 1: U.S. patent application publication No. 2009/0049669

However, in recent years, labor saving of the apparatus has been demanded. However, when the yarn threading work is performed in the normal spinning draft device described in patent document 1, at least 2 operators, that is, a sandwiching person who threads yarns to the respective rollers and the like and a yarn threading person who threads yarns to the winding section, are required. Further, when the thread is hung by 2 operators, that is, the interlining person who hangs the thread on the rollers and the like and the thread hanging person who hangs the thread on the winding unit, it is necessary to transfer the suction gun which sucks the thread when the thread is hung on the rollers and the like and the winding unit, and therefore the thread hanging operation time increases. Even if the yarn is hung on the winding unit such as each roller by 1 operator, since the yarn hanging operation at the interlayer where each roller is disposed is a high-place operation, it is necessary to lift and lower the operation carriage, and not only is the time required for the yarn hanging operation longer, but also the operation load on the operator increases. Therefore, it is an urgent subject to reduce the height of the spinning draft device, to reduce the yarn hanging time, and to save labor.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to reduce the height of a spinning draft device (japanese: lower bed) compared with the conventional one, to shorten the yarn hanging time, and to save labor.

(1) The spinning traction device of the invention is characterized in that,

the yarn winding device is provided with a yarn drawing section for drawing and stretching at least a plurality of yarns spun from a spinning machine, and a winding section for winding the plurality of yarns fed from the yarn drawing section to form a winding package,

the spinning draft unit includes:

a 1 st guide section for guiding the plurality of yarns spun from the spinning machine to a downstream side in a yarn advancing direction;

a stretching unit including a plurality of rollers including at least one roller for stretching the plurality of yarns guided from the 1 st guide unit; and

a 2 nd guide unit for guiding the plurality of yarns from the drawing unit to the winding unit,

the winding section and the stretching section are horizontally arranged,

the 2 nd guide unit includes a guide roller provided on a downstream side in a yarn running direction of the stretching unit, and a plurality of distribution rollers arranged on a downstream side in the yarn running direction of the guide roller and having a driving unit provided above the winding unit, and the plurality of yarns from the stretching unit are fed to the winding unit via the guide roller and the plurality of distribution rollers.

According to the spun yarn draw-off device described in the above (1), since the plurality of yarns from the stretching section are fed to the winding section via the guide roller and the distribution roller, the height of the spun yarn draw-off device can be suppressed and the height can be reduced by arranging the winding section and the stretching section horizontally. As a result, it is not necessary to vertically divide the working area of 1 floor to arrange the operator in each working area as in the conventional art, and the threading work can be performed by 1 operator, so that the threading work time can be shortened, and labor can be saved.

(2) The spinning draft device according to the above (1),

the plurality of distribution rollers are arranged such that an acute angle formed by a yarn advancing direction of the yarn fed from the guide roller and a horizontal plane is 0 degrees or more and 20 degrees or less.

According to the spinning draft device described in the above (2), the height of the guide roller can be suppressed, and the spinning draft device can be made low in height. That is, the lower limit of the distribution roller in the height direction is determined by other configurations such as the winding unit. Therefore, by arranging the guide rollers and the distribution rollers such that the angle between the yarn running direction of the yarn fed from the guide rollers to each distribution roller and the horizontal plane is 0 degrees or more and 20 degrees or less, the guide rollers and the distribution rollers can be reduced, and the spinning draft device can be made low in height.

(3) The spinning draft device according to the above (1) or (2),

the plurality of distribution rollers are arranged in series along a yarn passage from the guide roller to each of the plurality of distribution rollers in a plan view,

the yarn passage from the guide roller to each of the plurality of distribution rollers is formed with a plurality of yarn passages separated in a direction orthogonal to the yarn passage in a plan view corresponding to the plurality of distribution rollers,

the plurality of distribution rollers are respectively configured to avoid the yarn passage corresponding to the other distribution rollers.

According to the spinning draft device described in (3) above, each of the plurality of distribution rollers is disposed so as to avoid the yarn passage corresponding to the other distribution roller. This makes it possible to prevent the yarn fed from the guide roller from contacting the roller surface of another distribution roller.

(4) The spinning draft device according to the above (3), characterized in that,

the plurality of distribution rollers have different roller surface heights depending on positions in a direction orthogonal to both a vertical direction and a yarn passage from the guide roller to the distribution roller.

According to the spinning draft device described in (4) above, since the heights of the roller surfaces are different depending on the positions in the direction orthogonal to both the yarn passage from the guide roller to the distribution roller and the vertical direction, the yarn passage through which each yarn fed to the plurality of distribution rollers travels can be secured. This prevents the yarn fed from the guide roller from contacting the roller surface of another distribution roller.

(5) The spinning draft apparatus according to the above (3) or (4),

the axial direction of at least one of the plurality of distribution rollers is inclined with respect to the horizontal direction.

According to the spinning draft device described in the above (5), the yarn fed from the guide roller can be prevented from contacting the roller surface of another distribution roller by a simple configuration in which the axial direction of the distribution roller is inclined with respect to the horizontal direction.

(6) The spinning draft apparatus according to any one of the above (3) to (5),

at least one of the plurality of distribution rollers is a conical or stepped roller having a diameter different in size depending on a position in a direction orthogonal to both a vertical direction and a yarn passage from the guide roller to the distribution roller.

According to the spinning draft device described in the above (6), the yarn fed from the guide roller can be prevented from contacting the roller surface of another distribution roller by a simple configuration in which the distribution roller is changed to a conical or stepped roller having a different diameter depending on the position in the direction orthogonal to both the yarn passage and the vertical direction.

(7) The spinning draft device according to the above (3), characterized in that,

the plurality of distribution rollers are arranged such that the height position of the roller surface of the distribution roller closest to the guide roller is the lowest, and the height position of the roller surface of the distribution roller increases as the distribution roller becomes farther from the guide roller.

According to the spinning draft device described in the above (7), the height position of the roller surface of the distribution roller closest to the guide roller is the lowest, and the height position of the roller surface of the distribution roller becomes higher as the distribution roller becomes farther from the guide roller. Therefore, the yarn fed from the guide roller can be prevented from contacting the roller surface of another distribution roller by a simple configuration in which the mounting height positions of the plurality of distribution rollers are sequentially shifted.

(8) The spinning draft apparatus according to any one of the above (1) to (7),

the apparatus further includes a plurality of driving units corresponding to the plurality of distribution rollers, respectively.

According to the spinning draft device described in (8) above, since the plurality of distribution rollers can be independently driven, the tension difference of the plurality of yarns on the downstream side of the plurality of distribution rollers can be reduced. As a result, the quality of the winding package can be stabilized.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the height of the spinning draft device is reduced compared to the conventional one, and the yarn hanging time can be shortened and the labor can be saved.

Drawings

Fig.1 is an example of a schematic perspective view showing a spinning draft device.

Fig. 2 is an example of a schematic side view showing the spin draw unit.

Fig. 3 is an example of a side view showing the periphery of the 1 st guide part.

Fig. 4 is an example of a plan view showing a plurality of oiling portions, a plurality of yarn sucking portions, and a 1 st yarn feeding roller.

Fig. 5 is a side view showing an example of the periphery of the stretching portion.

Fig. 6 is an example of a side view showing the periphery of the relaxation section, the distribution section, and the winding section.

Fig. 7 is an example of a plan view showing the periphery of the dispensing portion.

Fig. 8 is an example of a side view of the 2 nd relaxation roller and each distribution roller.

Fig. 9 is an example of a schematic view showing an acute angle formed between the thread running direction of the thread fed from the 2 nd buffer roller to each of the distribution rollers and the horizontal plane.

FIG. 10 (A) is an example ofbase:Sub>A sectional view taken along line A-A shown in FIG. 8, (B) is an example ofbase:Sub>A sectional view taken along line B-B shown in FIG. 8, (C) is an example ofbase:Sub>A sectional view taken along line C-C shown in FIG. 8, (D) is an example ofbase:Sub>A sectional view taken along line D-D shown in FIG. 8, (E) is an example ofbase:Sub>A sectional view taken along line E-E shown in FIG. 8, and (F) is an example ofbase:Sub>A sectional view taken along line F-F shown in FIG. 8.

Fig. 11 is an example of a schematic side view showing a spinning draft device according to modification 1.

Fig. 12 is a view showing a modification example 2 in which the shape of the distribution roller and the attachment form of the distribution roller are modified.

Fig. 13 is a view showing a modification example 3 in which the shape of the distribution roller and the attachment form of the distribution roller are modified.

Fig. 14 is a diagram of a 4 th modification in which the arrangement of the distribution rollers is changed.

Fig. 15 shows an example of the positional relationship among the 1 st buffer roller, the 2 nd buffer roller, and the distribution roller in the case where the distribution rollers are arranged so that the height positions thereof are changed, where (a) is a schematic view showing the 1 st arrangement mode, (B) is a schematic view showing the 2 nd arrangement mode, and (C) is a schematic view showing the 3 rd arrangement mode.

Fig. 16 is another example of the positional relationship among the 1 st buffer roller, the 2 nd buffer roller, and the distribution roller in the case where the distribution rollers are arranged so that the height positions thereof are changed, (a) is a schematic view showing the 4 th arrangement mode, and (B) is a schematic view showing the 5 th arrangement mode.

Description of the symbols

1: a spinning traction device; 6: a spinning draft section; 8: a winding section; 10: a 1 st guide part; 20: 1 st silk thread conveying roller; 28: a stretching section; 62: a 2 nd buffer roller (2 nd guide); 70A to 70L: distribution roller (No. 2 guide)

Detailed Description

The spinning draft device 1 of the present invention will be described below with reference to the drawings. The spinning and drawing device 1 of the present invention is a device for drawing a yarn for industrial materials of 300 denier or more, for example. Fig.1 is an example of a schematic perspective view showing a spinning draft device 1. Fig. 2 is an example of a schematic side view showing the spun yarn drawing device 1.

In the present embodiment, the X direction and the Y direction are defined as shown in fig.1 and 2. The X direction and the Y direction are both horizontal directions and are orthogonal to each other. The X direction is a direction indicated by an arrow in fig.1 and 2. Therefore, in the present specification, the term "opposite direction to the X direction" means the opposite direction to the arrow shown in fig.1 and 2. On the other hand, the Y direction is two directions indicated by arrows in fig.1 and 2.

[1. Integral constitution of spinning draft gear ]

The overall structure of the spinning draft device 1 will be described with reference to fig.1 and 2. As shown in fig.1 and 2, the spin draw unit 1 mainly includes an oil supply unit 2, a yarn suction unit 4, a spin draw unit 6, and a winding unit 8 in this order from the upstream side in the yarn running direction.

The fueling unit 2 has a plurality of fueling units 2. These plurality of oil feed portions 2 are arranged in a row in the left-right direction on the paper of fig. 2. The reason why "one row is arranged in the X direction" and "one row is arranged in the left-right direction on the paper surface of fig. 2" is not described here will be described later with reference to fig. 4.

Although not shown in fig.1 and 2, a spinning machine is disposed above the plurality of oil feeding units 2. The plurality of oiling units 2 apply an oiling agent to the yarn 100 which is spun from the spinning machine and becomes a bundle of filaments. In the present embodiment, the spinning draft device 1 includes the oiling section 2, but the present invention is not limited to this, and the spinning machine may include the oiling section 2.

The thread suction part 4 has a plurality of thread suction parts 4, which are generally called vacuum generators. When the spinning draft device 1 includes the fueling units 2, the plurality of yarn suction units 4 are provided directly below the corresponding fueling units 2, and temporarily suck and hold the yarn 100 when the yarn 100 is wound around each roller, broken, or the like. The yarn 100 coated with the oil agent by the oil feeder 2 passes directly below the front surface of the yarn suction unit 4 and travels toward the 1 st guide unit 10 described later. Each of the plurality of thread suction units 4 is mainly configured to generate a suction force at a suction port by a flow of a compressed fluid.

The spinning and drawing section 6 mainly includes a 1 st guide section 10, a 1 st yarn feeding roller 20, a stretching section 28, a relaxation section 60, and a distribution section 70 in this order from the upstream side in the yarn running direction. The details of the 1 st guide section 10, the 1 st yarn feeding roller 20, the stretching section 28, the relaxing section 60, and the distributing section 70 will be described later.

The winding unit 8 mainly includes a main frame 80, a 1 st winding device 81, and a 2 nd winding device 91. The 1 st winding device 81 and the 2 nd winding device 91 are arranged in the Y direction. Since the 1 st winding device 81 and the 2 nd winding device 91 have the same structure, the 1 st winding device 81 will be described below, and the description of the 2 nd winding device 91 will be omitted. In the present embodiment, the winding unit 8 includes 2 winding devices, that is, the 1 st winding device 81 and the 2 nd winding device 91, but the present invention is not limited thereto, and may include 1 winding device.

The 1 st winding device 81 mainly includes: a disc-shaped turntable 82 rotatably provided on the main frame 80; two winding shafts 84 cantilever-supported by the turntable 82 and having the X direction as the axial direction; and a plurality of traverse devices 85 for performing the traverse of the yarn 100.

A plurality of bobbins 86 are mounted in series on the take-up shaft 84. The winding shaft 84 is rotated by driving of a motor, not shown, to rotate the plurality of bobbins 86 attached to the winding shaft 84, thereby winding the yarn 100 around the plurality of bobbins 86 that are rotated. The yarn 100 wound around the bobbin 86 forms a winding package.

Here, the positional relationship between the stretching section 28 and the winding section 8 of the draw-in-spinning section 6 will be described with reference to fig.1 and 2. The stretching unit 28 is disposed upstream of the winding unit 8 in the yarn running direction and on the opposite side of the winding unit 8 in the X direction. Specifically, the stretching unit 28 and the winding unit 8 are horizontally disposed on the same floor such that the axial direction of the winding shaft 84 is parallel to the running direction of the yarn 100 in the stretching unit 28 in a plan view. That is, in the present embodiment, the stretching unit 28 is disposed at a height position almost equal to that of the winding unit 8, which is different from the conventional spun yarn drawing apparatus in which the working area of 1 layer is vertically divided, the winding unit is disposed in the working area on the lower side of 1 layer, and the stretching unit is disposed in the working area on the upper side. Accordingly, the stretching unit 28 can be disposed to such an extent that 1 operator can perform the yarn hooking operation of the stretching unit and the winding unit without using a work carriage or the like. As a result, the yarn threading operation time can be shortened, and labor can be saved.

Further, the 1 st guide 10 is disposed near an upper portion of the stretching portion 28. Further, a yarn suction portion 4 is disposed directly above the 1 st guide portion 10, and an oil supply portion 2 is disposed directly above the yarn suction portion 4. The operational effects exerted by the arrangement of the members in the vicinity as described above are described below including the positional relationship with the 1 st yarn feeding roller 20.

[2. Spinning draft part ]

The following describes the 1 st guide 10, the 1 st yarn feeding roller 20, the stretching portion 28, the relaxation portion 60, and the distribution portion 70 provided in the spinning and drawing portion 6.

[2-1. 1 st guide section, 1 st yarn feed roller ]

Fig. 3 is an example of a side view showing the periphery of the 1 st guide 10. As shown in fig. 3, the 1 st guide 10 is mainly composed of a plurality of (for example, 12) direction changing rollers 10A to 10L. The plurality of direction changing rollers 10A to 10L are arranged in a row along the left-right direction on the paper surface of fig. 3. Specifically, the direction changing rollers 10A to 10F are arranged from left to right on the paper surface of fig. 3, and the direction changing rollers 10G to 10L are arranged from right to left on the paper surface of fig. 3. Here, the reason why "one row is arranged in the X direction" and "one row is arranged in the left-right direction on the paper surface of fig. 3" is not described, together with the plurality of fueling portions 2 "one row is arranged in the left-right direction on the paper surface of fig. 2", will be described later with reference to fig. 4.

In the present embodiment, the plurality of direction-changing rollers 10A to 10L are arranged in a row in the left-right direction on the paper surface of fig. 3, but the plurality of direction-changing rollers 10A to 10L may be arranged horizontally or may be arranged offset in the vertical direction.

The plurality of direction changing rollers 10A to 10L are rollers for conveying a plurality of (for example, 12) yarns 100 spun downward from the spinning machine and coated with the finish to the 1 st yarn conveying roller 20 located below each of the plurality of yarns 100 in the horizontal direction. Further, "below the horizontal direction" is preferably slightly below the horizontal direction. For example, the angle between the direction of the thread running of the thread 100 fed from the direction changing rollers 10A to 10L to the 1 st thread feeding roller 20 and the horizontal plane is preferably greater than 5 degrees and 30 degrees or less. The "acute angle formed by the horizontal plane and the running direction of the yarn 100 fed from the direction changing rollers 10A to 10L to the 1 st yarn feeding roller 20" corresponds to the angle α shown in fig. 3.

The yarn 100 whose running direction is changed by the direction changing rollers 10A to 10F is fed to and wound by the 1 st winding device 81 (see fig. 1). The yarn 100 whose running direction is changed by the direction changing rollers 10G to 10L is fed to and wound by the 2 nd winding device 91 (see fig. 1).

The 1 st yarn feeding roller 20 is a roller provided in a yarn passage from the 1 st guide portion 10 to the stretching portion 28, and is a roller having a direction (i.e., Y direction) substantially orthogonal to both the yarn running direction and the vertical direction as an axial direction. The 1 st yarn feeding roller 20 is disposed between the 1 st guide portion 10 (i.e., the plurality of direction changing rollers 10A to 10L) and the stretching portion 28 in the vertical direction, and is disposed on the opposite side in the X direction from both the 1 st guide portion 10 (more specifically, the direction changing roller 10G) and the stretching portion 28 in the horizontal direction. That is, the 1 st guide portion 10 and the stretching portion 28 are disposed in a positional relationship of being vertically disposed at positions overlapping in a plan view, and the 1 st yarn feeding roller 20 is disposed at a position not overlapping with the 1 st guide portion 10 and the stretching portion 28 in a plan view and being horizontally displaced. However, from the viewpoint of space saving, the 1 st yarn feeding roller 20 is preferably located in the vicinity of the 1 st guide portion 10 and the stretching portion 28 in the horizontal direction.

In this way, by disposing the 1 st guide portion 10 in the vicinity of the upper portion of the stretching portion 28 and disposing the 1 st yarn conveying roller 20 at a position offset to the opposite side in the X direction from both the 1 st guide portion 10 and the stretching portion 28, the vertical distance between the 1 st guide portion 10 and the stretching portion 28 can be reduced. Further, by reducing the vertical distance between the 1 st guide portion 10 and the stretching portion 28, the height of the 1 st guide portion 10, the yarn suction portion 4 disposed directly above the 1 st guide portion 10, and the oil supply portion 2 disposed directly above the yarn suction portion 4 can be reduced, and the height of the entire spin draw device 1 can be reduced. As a result, it is not necessary to vertically divide the working area of 1 floor as in the conventional art, and the operators are arranged in the respective working areas, and the yarn threading work can be performed by 1 operator, so that the yarn threading work time can be shortened, and labor can be saved.

The yarn 100 fed from the 1 st yarn feeding roller 20 travels toward the stretching portion 28. The winding angle of the yarn 100 to the 1 st yarn feeding roller 20 is less than 360 degrees.

The plurality of yarns 100 spun downward from the spinning machine are wound at a winding angle of, for example, 45 degrees or more and less than 90 degrees, while being in contact with the roller surfaces of the plurality of direction changing rollers 10A to 10L. In particular, by disposing the 1 st yarn feeding roller 20 at a position on the opposite side of the direction changing roller 10G in the X direction and by reducing the angle α as much as possible, the winding angle of the yarn around each of the direction changing rollers 10A to 10L can be increased, and the gripping force of the yarn 100 with each of the direction changing rollers 10A to 10L can be increased. Therefore, tension can be applied to the yarn 100 between the plurality of direction changing rollers 10A to 10L and the 1 st yarn conveying roller 20, and the running of the yarn 100 on the downstream side of the plurality of direction changing rollers 10A to 10L can be stabilized. Further, the thread guide for finely adjusting the tension of the thread, which is conventionally provided, is not necessary, and the oiling unit 2 and the thread suction unit 4 can be disposed at positions lower than the spinning draft device provided with the thread guide. Further, since the running direction of the yarn 100 can be changed by the roller, the load on the yarn 100 can be reduced as much as possible. When the thread separation position on the peripheral surface of each of the direction changing rollers 10A to 10L is lower than the thread entrance position on the peripheral surface of the first thread conveying roller 20 in the vertical direction, the winding angle in contact with the roller surface of each of the direction changing rollers 10A to 10L exceeds 90 degrees.

The plurality of direction-changing rollers 10A to 10L include a plurality of motors (motors 76 shown in fig. 10 described later) corresponding to the respective rollers. When the 1 st yarn feeding roller 20 is disposed at a position offset to the opposite side of the X direction from both the 1 st guide portion 10 and the stretching portion 28, distances (i.e., yarn lengths) from the direction changing rollers 10A to 10L to the 1 st yarn feeding roller 20 are different, and there is a possibility that the tension may be different for each of the plurality of yarns 100. Therefore, by driving each of the plurality of direction changing rollers 10A to 10L independently, the yarn feeding speed is stabilized, and even when the lengths of the yarns are different, variations in the yarn tension can be suppressed.

Next, the positional relationship among the plurality of oiling units 2, the plurality of yarn suction units 4, and the plurality of direction changing rollers 10A to 10L will be described with reference to fig. 4. Fig. 4 is an example of a plan view showing the plurality of lubricators 2, the plurality of thread suctions 4, and the 1 st thread conveying roller 20.

As shown in fig. 4, the plurality of fueling portions 2A to 2L are arranged in a row with an equal interval in the left-right direction and the Y direction (i.e., the direction orthogonal to both the winding axis 84 (see fig. 1) and the vertical direction) on the paper of fig. 4. Although not shown in fig. 4, the thread suction portions 4A to 4L are disposed directly below the oil feed portions 2A to 2L (see fig. 3). Like the direction change rollers 10A to 10L, the lubricators 2A to 2F are arranged from left to right on the sheet of fig. 4, and the lubricators 2G to 2L are arranged from right to left on the sheet of fig. 4.

Although the 1 st guide section 10 (the plurality of direction changing rollers 10A to 10L) is not shown in fig. 4, the direction changing rollers 10A to 10L are disposed directly below the respective thread suction sections 4A to 4L. Therefore, the plurality of direction changing rollers 10A to 10L are also arranged in a row at regular intervals along the Y direction. Accordingly, the plurality of yarns 100 spun from the spinning machine are offset in the Y direction so as to be parallel to each other in a plan view, and the yarns can be prevented from interfering with each other or being entangled with each other. In particular, in the present embodiment, the vertical distance between the 1 st guide portion 10 and the stretching portion 28 is reduced, but even in this case, the plurality of threads 100 can be made to run in parallel, and the plurality of threads can be prevented from interfering with each other or being entangled. Further, the yarn hooking operation can be easily performed to a yarn guide (not shown) or a yarn winding device (not shown) disposed in the yarn passage from the plurality of direction changing rollers 10A to 10L to the distribution rollers 70A to 70L, and maintaining the yarn interval. However, the present invention is not limited thereto. The yarn guide and the crosswinding device for maintaining the yarn interval may not be provided between the plurality of direction changing rollers 10A to 10L and the distribution rollers 70A to 70L.

The reason why the arrangement of the plurality of oiling portions 2A to 2L and the plurality of yarn suction portions 4A to 4L is not described as "arranged offset in the X direction and the Y direction" but described as "arranged offset in the left-right direction and the Y direction on the paper of fig. 4" is that the X direction means one direction. That is, the reason is that when the "arrangement in the X direction" is defined as being arranged in series in one direction of the X direction, the possibility of the "arrangement in the Y direction" being mismatched with the description of the "arrangement in the Y direction" can be avoided. In the explanation with reference to fig. 2 and 3, the same effect is obtained for the reason that "one row is arranged in the X direction" is not described, but "one row is arranged in the left-right direction on the paper surface of fig. 2" or "one row is arranged in the left-right direction on the paper surface of fig. 3". That is, the reason is that it can be avoided that the description "arranged in a line along the X direction" is interpreted as not being shifted in the Y direction.

The number of the plurality of oiling units 2, the plurality of yarn suction units 4, the plurality of direction changing rollers 10A to 10L, the plurality of traverse devices 85, and the plurality of bobbins 86 is not particularly limited.

[2-2. Stretching part ]

Fig. 5 is an example of a side view showing the periphery of the stretching portion 28. As shown in fig. 5, the stretching portion 28 mainly includes: a plurality of preheating rollers 31 for heating the yarn 100 before drawing; a plurality of stretching rollers 41 disposed downstream of the plurality of preheating rollers 31; and a plurality of heat setting rolls 51 disposed downstream of the plurality of drawing rolls 41 for tempering the drawn yarn 100.

The plurality of preheating rollers 31, the plurality of stretching rollers 41, and the plurality of heat setting rollers 51 are housed in an incubator (no reference numeral), and are not shown in the drawings in nature, but are appropriately illustrated in the drawings referred to in the present specification.

However, conventionally, the heating length is secured by winding the yarn around a long roll having a relatively large roll width for a plurality of turns, and in the spinning draft device 1 of the present embodiment, a short roll having a smaller roll width than the conventional one is used and the winding on the roll is made to be less than 1 turn. However, in order to secure a heating length while winding the roll for less than 1 cycle, the number of rolls is required to be larger than that of the conventional one. In particular, for example, in a spinning and drawing device for producing a yarn for industrial materials of 300 denier or more, a heating length is required to be larger than that of a spinning and drawing device for a yarn for clothing. Therefore, in the spinning draft device 1 of the present embodiment, the plurality of preheating rollers 31, the plurality of stretching rollers 41, and the plurality of heat setting rollers 51 are arranged horizontally in series in the X direction on the same floor, whereby the height of the stretching section 28 can be reduced while the heating length is secured by winding the rollers for less than 1 cycle (the winding angle of the rollers is less than 360 degrees). The plurality of preheating rollers 31, the plurality of stretching rollers 41, and the plurality of heat-setting rollers 51 correspond to "a plurality of rollers" of the present invention.

At least the most upstream side stretching roller 41 among the stretching rollers 41 has a yarn feeding speed higher than that of the most downstream side preheating roller 31 among the preheating rollers 31. Therefore, the yarn 100 is stretched between the most downstream one of the preliminary heating rollers 31 and the most upstream one of the stretching rollers 41.

The surface temperature of the plurality of preheating rollers 31 is set to a temperature (for example, 90 ℃) equal to or higher than the glass transition point of the wire 100. The surface temperature of the 1 st stretching rollers 41 is set to a temperature (for example, 110 ℃) higher than the surface temperature of the preheating roller 31. The surface temperature of the plurality of heat setting rollers 51 is set to a temperature (for example, 130 ℃) higher than the surface temperature of the stretching roller 41.

In the present embodiment, the surface temperature of all the rollers of the plurality of preheating rollers 31 is raised, but the present invention is not limited to this, and the surface temperature of at least 1 roller may be raised, and the surface temperature of the remaining other rollers may not be raised. Similarly, in the present embodiment, the surface temperatures of all the rollers are increased in each of the plurality of stretching rollers 41 and the plurality of heat setting rollers 51, but the present invention is not limited to this, and the surface temperatures of at least 1 roller may be increased, and the surface temperatures of the remaining rollers may not be increased. Further, the plurality of preheating rollers 31 are not necessarily set to the same surface temperature. The plurality of preheating rollers 31 may be set to different surface temperatures. Similarly, the surface temperatures of the stretching rollers 41 and the heat setting rollers 51 may be the same or different.

[2-3. Relief portion ]

Fig. 6 is an example of a side view showing the periphery of the relaxation section 60, the distribution section 70, and the winding section 8. As shown in fig. 6, the buffer 60 is disposed directly above the heat setting roller 51.

The relaxation section 60 includes a 1 st relaxation roller 61 and a 2 nd relaxation roller 62 disposed downstream of the 1 st relaxation roller 61 in the yarn running direction. The 1 st buffer roller 61 and the 2 nd buffer roller 62 are both rollers having a direction (i.e., Y direction) substantially orthogonal to the yarn running direction of the yarn path as an axial direction in a plan view.

The yarn 100 fed from the heat setting roller 51 on the most downstream side among the plurality of heat setting rollers 51 travels in the order of the 1 st relaxation roller 61 and the 2 nd relaxation roller 62. The 2 nd buffer roller 62 corresponds to a "guide roller" of the present invention.

The 1 st buffer roller 61 and the 2 nd buffer roller 62 are arranged to be shifted from each other in the vertical direction. The 1 st relaxing roller 61 and the 2 nd relaxing roller 62 are arranged offset from each other in the X direction, the 1 st relaxing roller 61 is arranged on the X direction side, and the 2 nd relaxing roller 62 is arranged on the opposite direction side to the X direction. By disposing the 1 st buffer roller 61 and the 2 nd buffer roller 62 in this manner, the height of the 2 nd buffer roller 62 can be suppressed, and the yarn threading operation to the 2 nd buffer roller 62 can be facilitated.

The winding angle of the yarn 100 to the 1 st buffer roller 61 and the 2 nd buffer roller 62 is less than 360 degrees. The surface temperature of the relaxation rollers 61 and 62 is set to be lower than the temperature of the heat setting roller 51 (for example, 100 ℃) to relax the internal deformation of the yarn 100. However, the 1 st buffer roller 61 and the 2 nd buffer roller 62 are not necessarily set to the same surface temperature, and may be set to different surface temperatures for the respective buffer rollers 61 and 62.

In the present embodiment, the temperature of the surface of each of the 1 st relaxing roller 61 and the 2 nd relaxing roller 62 is raised, but the present invention is not limited thereto. For example, the surface temperature of at least 1 of the 1 st relaxation roller 61 and the 2 nd relaxation roller 62 may be increased, and the surface temperature of the other rollers may not be increased.

The yarn 100 fed from the 2 nd buffer roller 62 disposed on the downstream side in the yarn running direction in the buffer 60 is guided to the distribution unit 70. The relaxation section 60 and the distribution section 70 correspond to the "No. 2 guide section" of the present invention.

[2-4. Distribution portion ]

As shown in fig. 6, the distribution section 70 includes a plurality of distribution rollers 70A to 70F. The plurality of distribution rollers 70A to 70F are arranged horizontally in series in the X direction in the order of the distribution roller 70A, the distribution roller 70B, the distribution roller 70C, the distribution roller 70D, the distribution roller 70E, and the distribution roller 70F.

Further, a plurality of bobbins 86A to 86F can be attached to 1 winding shaft 84 of the 1 st winding device 81. In the present embodiment, the plurality of bobbins 86A to 86F are attached to the winding shaft 84 of the 1 st winding device 81 in the X direction in the order of the bobbin 86A, the bobbin 86B, the bobbin 86C, the bobbin 86D, the bobbin 86E, and the bobbin 86F.

The plurality of distribution rollers 70A to 70F correspond to the plurality of bobbins 86A to 86F, respectively. Each of the distribution rollers 70A to 70F changes the running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the downward direction. In this way, the plurality of yarns 100 are fed from the distribution rollers 70A to 70F to the corresponding bobbins 86A to 86F for each yarn 100.

The plurality of bobbins 86A to 86F wind the yarn 100 whose running direction is changed by the corresponding distribution rollers 70A to 70F, respectively, to form a winding package. Further, a plurality of traverse devices 85A to 85F corresponding to the respective bobbins 86A to 86F are arranged directly above the respective bobbins 86A to 86F. However, in fig. 6, reference numerals are appropriately given only to the traverse device 85A and the traverse device 85F, and reference numerals for the traverse devices 85B to 85E are omitted. A plurality of distribution rollers 70A to 70F corresponding to the plurality of traverse devices 85A to 85F, that is, the plurality of bobbins 86A to 86F are arranged directly above the plurality of traverse devices 85A to 85F, respectively.

Fig. 7 is an example of a plan view showing the periphery of the distribution portion 70. As shown in fig. 7, the distribution unit 70 includes a plurality of distribution rollers 70G to 70L in addition to the plurality of distribution rollers 70A to 70F. The plurality of yarns 100 fed from the 2 nd buffer roller 62 are conveyed in the direction toward the distribution rollers 70A to 70F and in the direction toward the distribution rollers 70G to 70L.

As described above, the plurality of distribution rollers 70A to 70F correspond to the plurality of bobbins 86A to 86F attached to the winding shaft 84 of the 1 st winding device 81. On the other hand, the plurality of distribution rollers 70G to 70L correspond to a plurality of bobbins (not shown) attached to the winding shaft 84 of the 2 nd winding device 91 (see fig. 1). Therefore, the distribution rollers 70G to 70L change the running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the downward direction, similarly to the distribution rollers 70A to 70F.

In this way, the yarn 100 fed from the heat setting roller 51 (see fig. 6) on the most downstream side of the stretching unit 28 (see fig. 6) is conveyed to the winding unit 8 through the relaxation unit 60 and the distribution unit 70. That is, the yarn 10 fed from the heat setting roller 51 on the most downstream side temporarily travels in the upper direction than the stretching unit 28, and is wound around the winding unit 8 via the relaxation unit 60 and the distribution unit 70. Therefore, even when the winding unit 8 and the stretching unit 28 are horizontally disposed on the same floor, the yarn 100 fed from the stretching unit 28, that is, the heat setting roller 51 on the most downstream side can be wound around the winding unit 8. That is, the yarn 100 fed from the most downstream heat setting roller 51 is wound around the winding unit 8 via the relaxation unit 60 and the distribution unit 70 which are disposed at a higher position than the winding unit 8, thereby contributing to the horizontal arrangement of the stretching unit 28 and the winding unit 8 on the same floor. As a result, the height of the stretching section 28 can be reduced, and the height of the spinning draft device 1 can be reduced.

[2-5. Passage of the thread from the relief portion to the dispensing portion ]

Next, the passage of the thread from the moderating section 60 to the distributing section 70 will be described with reference to fig. 7. As shown in fig. 7, the plurality of (for example, 12) yarns 100 fed from the 2 nd buffer roller 62 travel along any of the plurality of yarn passages 96A to 96L separated in a direction orthogonal to the yarn passages in a plan view.

The thread channel 96A is the path of the thread 100 traveling toward the dispensing roller 70A. The yarn 100 running in the yarn path 96A is the yarn 100 sent from the direction changing roller 10A. Likewise, the thread channels 96B to 96L are paths of the thread 100 that travels toward the distribution rollers 70B to 70L, respectively. The yarns 100 running in the yarn paths 96B to 96L are the yarns 100 fed from the direction changing rollers 10B to 10L, respectively.

The filament channels 96A-96F are separated from each other in the Y-direction. Likewise, the filament channels 96G to 96L are separated from each other in the Y direction. As described with reference to fig. 4, the plurality of direction changing rollers 10A to 10L (see fig. 3) are arranged offset in the Y direction. The plurality of yarns 100 travel in the X direction only in the traveling direction in plan view while being parallel from the 1 st guide 10 (see fig. 2) to the 2 nd buffer roller 62. Therefore, the yarn 100 can be made to travel between the 1 st guide 10 (see fig. 2) and the stretching unit 28 (see fig. 2) so that the yarn path does not deviate in the axial direction of the rollers (the direction changing rollers 10A to 10L, the 1 st yarn conveying roller 20, the plurality of preheating rollers 31, the plurality of 1 st stretching rollers 41, the plurality of heat setting rollers 51, and the plurality of relaxation rollers 61 and 62).

[2-6. Positional relationship between relaxation part and distribution part ]

Next, a positional relationship between the relaxation section 60 and the distribution section 70, more specifically, a height positional relationship between the 2 nd relaxation roller 62 on the most downstream side of the relaxation section 60 and the distribution rollers 70A to 70F when the plurality of distribution rollers 70A to 70F are horizontally arranged in series in the X direction will be described.

Fig. 8 is an example of a side view of the 2 nd buffer roller 62 and the distribution rollers 70A to 70F. As in the spun yarn traction device 1 of the present embodiment, when a plurality of (for example, 12 in the present embodiment) yarns 100 fed from the stretching unit 28 (see fig. 6) are wound around the winding unit 8 via the relaxation unit 60 and the distribution unit 70, the following requirements need to be satisfied. That is, for example, it is necessary to prevent the yarn 100 up to the contact point of the distribution rollers 70F and 70L (see fig. 7) farthest from the 2 nd buffer roller 62 from coming into contact with the roller surfaces of the other distribution rollers 70A to 70E and 70G to 70K (see fig. 7) and the other rollers on the upstream side of the 2 nd buffer roller 62 (for example, the 1 st buffer roller 61 (see fig. 6)). Therefore, the relaxation section 60 (the 1 st relaxation roller 61, the 2 nd relaxation roller 62) and the distribution rollers 70A to 70L need to be arranged within a range satisfying this requirement.

However, the lower limit of the distribution rollers 70A to 70F in the height direction can be determined by the relative positional relationship with the traverse devices 85A to 85F, the bobbins 86A to 86F (both refer to fig. 8), and the like, for example. Therefore, in order to suppress the height of the 2 nd relaxation roller 62, it is preferable to dispose the distribution rollers 70A to 70F at the lower limit or a position close to the lower limit in the height direction, and determine the height position of the 2 nd relaxation roller 62 within a range satisfying the above-described requirements. Although the distance from the 2 nd buffer roller 62 to the contact point of each of the distribution rollers 70A to 70L (see fig. 7) varies, in the present embodiment, the 2 nd buffer roller 62 is disposed such that the angle of the acute angle formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to each of the distribution rollers 70A to 70F and the horizontal plane is, for example, greater than 0 degrees and 20 degrees or less. By disposing the 2 nd buffer roller 62 at a position as low as possible in this manner, the yarn threading operation to the 2 nd buffer roller 62 can be prevented from becoming a high-place operation. The "acute angle formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to each of the distribution rollers 70A to 70F and the horizontal plane" corresponds to the angle β shown in fig. 9. Fig. 9 is an example of a schematic view showing an acute angle β formed between the horizontal plane and the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution roller 70A. Fig. 9 illustrates, as an example, a distribution roller 70A among the plurality of distribution rollers 70A to 70F. In the present embodiment, the 2 nd buffer roller 62 is disposed such that an acute angle β formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to each of the distribution rollers 70A to 70F and a horizontal plane is, for example, greater than 0 degree and 20 degrees or less.

However, as described above, the distribution rollers 70A to 70F are arranged horizontally in series in the X direction. Therefore, the angle β of the acute angle formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution rollers 70A to 70F and the horizontal plane differs depending on the distance from the 2 nd buffer roller 62 to the distribution rollers 70A to 70F. Specifically, the angle β increases as the distance from the 2 nd relaxation roller 62 decreases. That is, the angle β is such that the acute angle β formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution roller 70A and the horizontal plane is the largest, and the acute angle β formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution roller 70F and the horizontal plane is the smallest. Therefore, when the angle β is greater than 0 degrees and 20 degrees or less, the 2 nd buffer roller 62 may be disposed such that the angle β formed by the horizontal plane and the yarn advancing direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution roller 70F is greater than 0 degrees, and the angle β formed by the horizontal plane and the yarn advancing direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution roller 70A is 20 degrees or less.

The distribution rollers 70A to 70F are in a pair relationship with the distribution rollers 70G to 70L (see fig. 7). Therefore, the angle β formed by the thread running direction of the thread 100 fed from the 2 nd easing roller 62 to each of the distribution rollers 70G to 70L and the horizontal plane is almost the same as the angle β formed by the thread running direction of the thread 100 fed from the 2 nd easing roller 62 to each of the distribution rollers 70A to 70F and the horizontal plane.

[2-7 mounting manner of distribution roller ]

Next, the mounting method of the distribution rollers 70A to 70L will be described with reference to fig. 10. Fig. 10 is an example of a cross-sectional view cut along a direction orthogonal to the X direction at a position on the X direction side of each of the distribution rollers 70A to 70L. More specifically, (A) of FIG. 10 isbase:Sub>A sectional view taken along line A-A of FIG. 8. FIG. 10 (B) is a sectional view taken along line B-B in FIG. 8. FIG. 10 (C) is a cross-sectional view taken along line C-C of FIG. 8. Fig. 10 (D) is a cross-sectional view taken along line D-D of fig. 8.

FIG. 10 (E) is a sectional view taken along line E-E in FIG. 8. FIG. 10 (F) is a sectional view taken along line F-F in FIG. 8.

As shown in fig. 10 (a) to (F), the axial directions of the distribution rollers 70A to 70L are all inclined with respect to the horizontal direction. The reason why the axial directions of the distribution rollers 70A to 70L are inclined with respect to the horizontal direction is to allow each of the plurality of distribution rollers 70A to 70L to avoid the yarn 100 running along the yarn passages 96A to 96L corresponding to the other distribution rollers 70A to 70L. Further, contact between the yarn and the roller surface can be avoided only by a simple configuration in which the axial direction of the distribution rollers 70A to 70L is inclined with respect to the horizontal direction.

In view of the purpose of "preventing the yarn 100 from coming into contact with the roller surfaces of the other dispensing rollers 70A to 70E, 70G to 70K from the 2 nd buffer roller 62 to the point of contact with the farthest dispensing rollers 70F and 70L", the dispensing rollers 70F and 70L must be inclined in the axial direction with respect to the horizontal direction.

In the detailed description of the manner of attaching the distribution rollers 70A to 70L, the distribution rollers 70A to 70F are attached to an attachment surface 72a on one side (right side in the paper surface of fig. 10) of the attachment frame 72, and the distribution rollers 70G to 70L are attached to an attachment surface 72b on the other side (left side in the paper surface of fig. 10) of the attachment frame 72. In the mounting frame 72, in the paper surface of fig. 10, the mounting surface 72a on one side is disposed so as to be lowered rightward from above, and the mounting surface 72b on the other side is disposed so as to be lowered leftward from above. Since the distribution rollers 70A to 70F are mounted so that the axial direction is orthogonal to the one mounting surface 72a, the axial direction of the distribution rollers 70A to 70F is directed upward from the base end portion on the side mounted to the one mounting surface 72a to the tip end portion on the opposite side from the base end portion. Similarly, since the distribution rollers 70G to 70L are mounted so that the axial direction is orthogonal to the other mounting surface 72b, the axial direction of the distribution rollers 70G to 70L is directed upward from the base end portion to the tip end portion. In the present embodiment, the distribution rollers 70A to 70F are attached to the one attachment surface 72a so that an angle on the acute angle side formed by the axial direction and the horizontal direction becomes substantially 30 degrees. On the other hand, the distribution rollers 70G to 70L are attached to the other attachment surface 72b so that the acute angle formed by the axial direction and the horizontal direction is substantially 30 degrees.

By tilting the distribution rollers 70A to 70L upward from the base end to the tip end in this manner, the yarn 100 can be prevented from contacting the surfaces of the other distribution rollers until it reaches the corresponding distribution roller. As a result, the plurality of yarns 100 can be fed in parallel to the distribution rollers 70A to 70F and the distribution rollers 70G to 70L, and the heights of the 1 st relaxation roller 61 and the distribution rollers 70A to 70L can be suppressed.

When the distribution rollers 70A to 70L are horizontally arranged along the yarn path (i.e., X direction) of the plurality of yarns 100, the yarns 100 that travel along the yarn path of the distribution roller having the greater distance from the 2 nd buffer roller 62 travel at the same distance from the 2 nd buffer roller 62 at the higher positions. Therefore, according to the theory of books, even if the distribution rollers 70A to 70L are not inclined, it can be considered that the yarn 100 does not contact the surfaces of the other distribution rollers as if. However, in practice, since the yarn 100 is deflected, vibrated, or the like, the yarn 100 may contact the surface of another distribution roller or another portion without inclining the distribution rollers 70A to 70L. Therefore, in the present embodiment, the distribution rollers 70A to 70L are installed so that the axial direction thereof is directed upward from the base end portion to the tip end portion. Thus, the yarn paths 96B to 96F and 96H to L for the respective yarns can be ensured in the yarn path where the yarn 100 reaches the corresponding distribution roller, and a space in which the yarn 100 can travel even if it is bent or vibrated can be ensured. In particular, the yarn 100 up to the contact point of the distribution rollers 70F and 70L having the largest distance from the 2 nd buffer roller 62 can be made to travel without contacting the roller surfaces of the other distribution rollers 70A to 70E and 70G to 70K.

The distribution rollers 70A to 70L are provided with motors 76 corresponding to the respective rollers. In the spinning draft device 1 of the present embodiment, since the distances from the 2 nd relaxing roller 62 to the distribution rollers 70A to 70L are different, the tension may be different for each of the plurality of yarns 100 at the downstream side of the distribution rollers 70A to 70L. When the tension is different for each of the plurality of wires 100, it is difficult to keep the quality of the winding package constant according to the bobbin to be wound. Therefore, by driving the plurality of distribution rollers 70A to 70L independently, the tension difference of the plurality of yarns 100 on the downstream side of the distribution rollers 70A to 70L can be reduced, and the quality of the winding package can be stabilized.

[3. Effect ]

According to the spinning draft device 1 of the present embodiment described above, the plurality of yarns 100 from the stretching unit 28 are conveyed to the winding unit via the 2 nd buffer roller 62 and the distribution unit 70. Therefore, the stretching unit 28 and the winding unit 8 can be horizontally disposed on the same floor, and the axial direction of the winding shaft 84 can be parallel to the running direction of the yarn 100 in the stretching unit 28 in a plan view. As a result, since it is not necessary to vertically divide the working area of 1 floor and arrange the operators in each working area as in the conventional art, the thread winding work can be performed by 1 operator, and therefore, the thread winding work time can be shortened and labor can be saved.

The 2 nd buffer roller 62 and the distribution rollers 70A to 70L are disposed such that an angle β formed by the yarn running direction of the yarn 100 sent out from the 2 nd buffer roller 62 and a horizontal plane is 0 degree or more and 20 degrees or less. However, the lower limit of the distribution rollers 70A to 70L in the height direction is determined by the relative positional relationship with the plurality of traverse devices 85A to 85F, bobbins 86A to 86F, and the like, for example. Therefore, by arranging the 2 nd buffer roller 62 and the distribution rollers 70A to 70L such that the angle β formed by the running direction of the yarn 100 fed from the 2 nd buffer roller 62 and the horizontal plane is 0 degree or more and 20 degrees or less, the heights of the 2 nd buffer roller 62 and the distribution rollers 70A to 70L can be suppressed.

The distribution roller is formed by arranging a plurality of distribution rollers 70A to 70L in a row along a yarn passage from the 2 nd buffer roller 62 to the distribution roller. Further, the yarn passage from the 2 nd buffer roller 62 to the distribution rollers 70A to 70L is formed with a plurality of yarn passages 96A to 96L separated in a direction orthogonal to the yarn passage in a plan view, corresponding to the plurality of distribution rollers 70A to 70L. Then, the plurality of distribution rollers 70A to 70L are arranged so as to be able to avoid the yarn passages 96A to 96L corresponding to the other distribution rollers 70A to 70L, respectively. Specifically, the axial directions of the distribution rollers 70A to 70L are inclined with respect to the horizontal direction. Therefore, the yarn 100 fed from the 2 nd buffer roller 62 can be kept from contacting the roller surfaces of the other distribution rollers 70A to 70L.

Further, a plurality of motors 76 corresponding to the plurality of distribution rollers 70A to 70L are provided. Therefore, the plurality of distribution rollers 70A to 70L can be driven independently, and the tension difference of the plurality of yarns 100 on the downstream side of the plurality of distribution rollers 70A to 70L can be reduced. As a result, the quality of the winding package can be stabilized. In particular, since the plurality of distribution rollers 70A to 70L are different in distance from the 2 nd relaxation roller 62, a tension difference is likely to occur. However, since the plurality of motors 76 corresponding to the plurality of distribution rollers 70A to 70L are provided, the tension difference of the plurality of yarns 100 on the downstream side of the plurality of distribution rollers 70A to 70L can be reduced and stabilized.

[4. Modification ]

Next, a modification example in which various modifications are applied to the spinning draft device 1 of the present embodiment will be described. In describing the modification, the same reference numerals are given to those having the same configuration as in the above embodiment, and the description thereof will be omitted as appropriate.

[4-1 ] 1 st modification

In the above embodiment, for example, as shown in fig. 2, the stretching unit 28 is disposed horizontally on the same floor as the winding unit 8, and the yarn 100 fed from the stretching unit 28 is fed to the winding unit 8 through the relaxation unit 60 and the distribution unit 70 disposed above the stretching unit 28. That is, the relaxation section 60 is not necessarily arranged above the stretching section 28.

Fig. 11 is a schematic side view showing an example of the spinning draft device 1A according to modification 1. In the spinning draft device 1A shown in fig. 11, the relaxation section 60 is disposed downstream of the stretching section 28. Further, 2 nd yarn conveying rollers 94 and 95 are disposed above the buffer 60. Then, the yarn 100 fed out from the buffer 60 is conveyed to the winding unit 8 via the 2 nd yarn conveying rollers 94 and 95 and the distributing unit 70. Even in such a case, the yarn 100 fed from the buffer 60 can be temporarily made to travel in a direction above the stretching unit 28 and the buffer 60, and can be conveyed to the winding unit 8 via the 2 nd yarn conveying rollers 94 and 95 and the distributing unit 70. Therefore, even if the winding unit 8 and the stretching unit 28 are horizontally disposed on the same floor, the yarn 100 fed from the stretching unit 28 can be wound around the winding unit 8. Further, the number of the 2 nd yarn feeding rollers is not limited to two. There may be one, or 3 or more. The number of the 2 nd yarn feeding rollers can be appropriately selected according to the contact angle and the contact area of the yarn wound around the circumferential surface of the 2 nd yarn feeding roller by the yarn 100 fed from the buffer 60. In the spinning draft device 1A according to modification 1, the 2 nd yarn feeding roller corresponds to the "guide roller" of the present invention.

[4-2 ] 2 nd modification example ]

In the above embodiment, for example, as shown in fig. 10, the distribution rollers 70A to 70L are attached so that the axial direction thereof is directed upward from the base end portion to the tip end portion. By attaching the distribution rollers 70A to 70L in this manner, for example, the yarn 100 from the 2 nd buffer roller 62 to the farthest contact point of the distribution rollers 70F and 70L can be prevented from contacting the roller surfaces of the other distribution rollers 70A to 70E and 70G to 70K. However, the shapes of the distribution rollers 70A to 70L and the attachment forms of the distribution rollers 70A to 70L are not necessarily the shapes and the attachment forms shown in fig. 10, and may be the shapes and the attachment forms shown in fig. 12, for example.

Fig. 12 is a view showing a modification example 2 in which the shape of the distribution roller and the attachment form of the distribution roller are modified. In fig. 12, by changing the shape of the distribution roller, for example, the yarn 100 from the 2 nd buffer roller 62 to the farthest contact point of the distribution rollers 77F and 77L is not brought into contact with the roller surfaces of the other distribution rollers 77A to 77E, 77G to 77K.

Specifically, the distribution rollers 77A to 77L shown in fig. 12 are distribution rollers having a tapered cross section with a larger roller diameter from the base end portion to the tip end portion, and are attached to the attachment surface 72a on one side (right side in the paper surface of fig. 12) or the attachment surface 72b on the other side (left side in the paper surface of fig. 12) of the attachment frame 72 such that the axial direction is the Y direction. Even in this case, the height of the roller surface can be changed according to the Y-direction position, and a space in which the yarn 100 can travel can be ensured on the yarn passage where the yarn 100 reaches the corresponding distribution roller. As a result, the yarn 100 from the 2 nd buffer roller 62 to the farthest contact point of the distribution rollers 77F and 77L can be kept from contacting the roller surfaces of the other distribution rollers 77A to 77E and 77G to 77K.

Note that, as with the distribution roller mounted with an inclination in the axial direction, the distribution roller 77F and the distribution roller 77L do not necessarily have to be a distribution roller having a conical cross section.

[4-3 ] 3 rd modification

Fig. 13 is a view showing a modification 3 in which the shape of the distribution roller and the attachment form of the distribution roller are modified in the same manner as in the modification 2. In fig. 13, for example, the yarn 100 from the 2 nd buffer roller 62 to the contact point of the farthest dispensing rollers 78F and 78L is also kept from contact with the roller surfaces of the other dispensing rollers 78A to 78E and 78G to 78K.

Specifically, the distribution rollers 78A to 78L shown in fig. 13 are stepped distribution rollers whose roller diameters become larger in steps from the base end portion to the tip end portion, and are attached to the attachment surface 72a on one side (right side in the paper surface of fig. 13) or the attachment surface 72b on the other side (left side in the paper surface of fig. 13) of the attachment frame 72 such that the axial direction is the Y direction. Even in this case, the height of the roller surface can be changed according to the Y-direction position, and a space in which the yarn 100 can travel can be ensured in the yarn passage until the yarn 100 reaches the corresponding distribution roller. As a result, for example, the yarn 100 from the 2 nd buffer roller 62 to the contact point of the farthest distribution rollers 78F and 78L can be kept from contact with the roller surfaces of the other distribution rollers 78A to 78E and 78G to 78K.

Note that, as with the distribution roller attached with an inclination in the axial direction, the distribution roller 78F and the distribution roller 78L do not necessarily have to be stepped distribution rollers.

Further, the plurality of dispensing rollers are not all necessarily the same in terms of the shape of the dispensing roller and the manner in which the dispensing roller is mounted. For example, the plurality of distribution rollers may be configured to include a distribution roller attached with an axial direction being inclined as described in the present embodiment, a distribution roller having a conical cross section as described in modification 2, and a distribution roller with a step as described in modification 3.

[4-4 ] 4 th modification example ]

In the above embodiment, for example, as shown in fig. 8, the distribution rollers 70A to 70F are arranged horizontally in series in the X direction, but the present invention is not limited thereto, and may be the embodiment shown in fig. 14. Fig. 14 is a view showing a 4 th modification in which the arrangement of the distribution rollers 70A to 70F is changed. For example, as shown in fig. 14, the distribution rollers 70A to 70F may be arranged along the X direction with their respective height positions changed. That is, for example, if the yarn 100 running along the yarn path 96F from the 2 nd buffer roller 62 to the contact point of the farthest dispensing roller 70F can be kept from contact with the roller surfaces of the other dispensing rollers 70A to 70E, the height positions of the dispensing rollers 70A to 70F may not be horizontal. Although not shown in fig. 14, the same applies to the distribution rollers 70G to 70L. In this way, according to the configuration shown in fig. 14, each of the yarns 100 fed from the 2 nd buffer roller 62 can be kept from contacting the roller surface of another distribution roller by simply arranging the plurality of distribution rollers 70A to 70F with their respective height positions changed.

When the distribution rollers 70A to 70F are arranged along the X direction with their respective height positions changed as shown in fig. 14, the angle β of the acute angle formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to the distribution rollers 70A to 70F and the horizontal plane can be 0 degree or less than 0 degree.

Fig. 15 is a schematic diagram showing an example of the positional relationship among the 1 st relaxing roller 61, the 2 nd relaxing roller 62, and the distribution rollers 70A to 70F in the case where the distribution rollers 70A to 70F are arranged with their respective height positions changed. Fig. 15 (a) is a schematic diagram showing the 1 st arrangement mode, fig. 15 (B) is a schematic diagram showing the 2 nd arrangement mode, and fig. 15 (C) is a schematic diagram showing the 3 rd arrangement mode.

In all of the 1 st to 3 rd arrangement modes shown in fig. 15 (a) to (C), the yarn 100 from the 2 nd buffer roller 62 to the contact point of the distribution roller 70F does not contact the roller surfaces of the other distribution rollers 70A to 70E and the 1 st buffer roller 61. In any of the 1 st arrangement mode to the 3 rd arrangement mode shown in fig. 15 (a) to (C), a space in which the yarn 100 can run can be secured in the yarn passage until the yarn 100 reaches the corresponding distribution roller. Therefore, the yarn 100 from the 2 nd buffer roller 62 to the contact point of the distribution roller 70F can be prevented from contacting the roller surfaces of the other distribution rollers 70A to 70E and the 1 st buffer roller 61. In the 1 st arrangement mode shown in fig. 15 (a) and the 3 rd arrangement mode shown in fig. 15 (C), the angle β of the acute angle formed by the yarn running direction of the yarn 100 fed from the 2 nd buffer roller 62 to each of the distribution rollers 70A to 70F and the horizontal plane can be set to an angle smaller than 0 degree.

Fig. 16 is a schematic diagram showing another example of the positional relationship among the 1 st relaxation roller 61, the 2 nd relaxation roller 62, and the distribution rollers 70A to 70F in the case where the distribution rollers 70A to 70F are arranged with their respective height positions changed. Fig. 16 (a) is a schematic diagram showing the 4 th arrangement mode, and fig. 16 (B) is a schematic diagram showing the 5 th arrangement mode.

The 4 th arrangement pattern shown in fig. 16 (a) is such that the yarn 100 from the 2 nd buffer roller 62 to the contact point of the distribution roller 70F contacts the roller surfaces of the other distribution rollers 70A to 70E. In the 5 th arrangement pattern shown in fig. 16 (B), the yarn 100 from the 2 nd buffer roller 62 to the contact point of the distribution roller 70F is in contact with the roller surface of the 1 st buffer roller 61. Therefore, the positional relationship among the 1 st relaxation roller 61, the 2 nd relaxation roller 62, and the distribution rollers 70A to 70F cannot be adopted for the 4 th arrangement mode and the 5 th arrangement mode.

Claims (8)

1. A spun yarn drawing device comprising a spun yarn drawing section for drawing and at least stretching a plurality of yarns spun from a spinning machine, and a winding section for winding the plurality of yarns fed from the spun yarn drawing section to form a winding package,

the spinning draft unit includes:

a 1 st guide section for guiding the plurality of yarns spun from the spinning machine to a downstream side in a yarn advancing direction;

a stretching unit including a plurality of rollers including at least one roller for stretching the plurality of yarns guided from the 1 st guide unit; and

a 2 nd guide unit for guiding the plurality of yarns from the drawing unit to the winding unit,

the winding section and the stretching section are horizontally arranged,

the 2 nd guide unit includes a guide roller provided on a downstream side in a yarn running direction of the stretching unit, and a plurality of distribution rollers arranged on a downstream side in the yarn running direction of the guide roller and having a driving unit provided above the winding unit, and the plurality of yarns from the stretching unit are fed to the winding unit via the guide roller and the plurality of distribution rollers.

2. Spinning draft gear according to claim 1,

the plurality of distribution rollers are arranged such that an acute angle formed by a yarn advancing direction of the yarn fed from the guide roller and a horizontal plane is 0 degrees or more and 20 degrees or less.

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

the plurality of distribution rollers are arranged in series along a yarn passage from the guide roller to each of the plurality of distribution rollers in a plan view,

the yarn passage from the guide roller to each of the plurality of distribution rollers is formed with a plurality of yarn passages separated in a direction orthogonal to the yarn passage in a plan view corresponding to the plurality of distribution rollers,

the plurality of distribution rollers are respectively configured to avoid the yarn passage corresponding to the other distribution rollers.

4. Spinning draft gear according to any of the claims 1 to 3,

the plurality of distribution rollers have different roller surfaces with different heights depending on positions in a direction orthogonal to both a yarn passage from the guide roller to the distribution roller and a vertical direction.

5. Spinning draft gear according to any of the claims 1 to 4,

the axial direction of at least one of the plurality of distribution rollers is inclined with respect to the horizontal direction.

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

at least one of the plurality of distribution rollers is a conical or stepped roller having a diameter different in size depending on a position in a direction orthogonal to both the yarn passage from the guide roller to the distribution roller and the vertical direction.

7. Spinning draft gear according to any one of claims 1 to 3,

the plurality of distribution rollers are arranged such that the height position of the roller surface of the distribution roller closest to the guide roller is the lowest, and the height position of the roller surface of the distribution roller increases as the distribution roller becomes farther from the guide roller.

8. Spinning draft gear according to any one of claims 1 to 7,

the apparatus further includes a plurality of driving units corresponding to the plurality of distribution rollers, respectively.

Images