JP7698990B2 - Spinning take-off device - Google Patents

Description

The present invention relates to a spinning take-up device that takes up yarn spun from a spinning machine and forms a winding package, and in particular to a spinning take-up device for industrial material yarns that have a large fineness and require a long heating length.

In a spinning take-up device that takes up the yarn spun from the spinning machine and forms a winding package, at the start of production, a threading operation is required to wind the yarn spun from the spinning machine along the yarn path to the winding section.

In a typical spinning take-up device, as disclosed in Patent Document 1 (see Fig. 1 in particular), for example, a processing assembly including multiple rollers is disposed below the spinning machine, and a winding section is disposed below the processing assembly. When threading is performed in such a spinning take-up device, a threading operator (mezzanine floor operator) who threads the yarn on each roller, etc., is required as an operator on the first floor, and a threading operator who threads the yarn on the winding section disposed below each roller, etc.

US Patent Application Publication No. 2009/0049669

In recent years, there has been a demand for reducing the number of workers required for equipment. However, when performing threading work in the general spinning take-up device described in Patent Document 1, at least two operators are required: a mezzanine worker who threads the rollers, etc., and a threading worker who threads the winding section. In addition, if threading is performed by two operators, a mezzanine worker who threads the rollers, etc., and a threading worker who threads the winding section, the suction gun that is sucking the thread needs to be handed over when threading the rollers, etc., and the winding section, which increases the threading work time. Even if threading is performed by one operator on each roller, etc. and the winding section, the threading work on the mezzanine floor where the rollers are located is a high-altitude work, so the operator needs to get on and off the work cart, which not only increases the time required for threading but also increases the burden on the operator. Therefore, it is an urgent issue to reduce the height of the spinning take-up device to a low floor, shorten the threading time, and reduce the number of workers.

The present invention was made in consideration of the above problems, and aims to lower the floor of the spinning take-off device compared to conventional methods, shorten the threading time, and reduce the number of people required.

(1) The spinning take-up device of the present invention is
A spinning take-up device including a spinning take-up section that takes up and at least stretches a plurality of yarns spun from a spinning machine, and a winding section that winds up the plurality of yarns sent from the spinning take-up section to form a winding package,
The spinning take-up section is
a first guide section that guides the plurality of yarns spun from the spinning machine downstream in a yarn running direction;
a stretching unit including a plurality of rollers including at least one roller for stretching the plurality of yarns guided from the first guiding unit;
a second guide section that guides the plurality of yarns from the stretching section to the winding section,
The winding section and the extension section are arranged horizontally on the same floor so that the axial direction of the winding section is parallel to the running direction of the yarn in the extension section in a plan view ,
The second guide section has a guide roller provided downstream of the extension section in the yarn running direction, and a plurality of distribution rollers arranged downstream of the guide roller in the yarn running direction and having a drive section provided above the winding section, and the plurality of yarns from the extension section are sent to the winding section via the guide roller and the plurality of distribution rollers.
The yarn take-off device further includes a plurality of yarn suction units capable of suctioning each of the plurality of yarns spun from the spinning machine,
The first guide unit is installed below the yarn suction units and above the stretching unit, and includes a direction-changing roller for changing a running direction of the yarns, for each of the yarns;
a first yarn feeding roller is provided on a yarn path from the plurality of direction-changing rollers to the stretching section;
The first yarn feeding roller is preferably provided at a position lower than the yarn suction section and offset horizontally from the winding section in the opposite direction relative to both the first guiding section and the stretching section.

According to the spinning take-up device described in (1) above, since the multiple yarns from the drawing section are sent to the winding section via the guide roller and the distribution roller, the winding section and the drawing section are horizontally arranged on the same floor so that the axial direction of the winding section is parallel to the running direction of the yarns in the drawing section in a plan view , thereby suppressing the height of the spinning take-up device and making it possible to lower the floor. As a result, it is no longer necessary to divide the work area on the first floor into upper and lower sections and to place an operator in each work area as in the conventional case, and since threading work can be performed by a single operator, it is possible to shorten the threading work time and reduce the number of workers.
Furthermore, if the first yarn feeding roller is provided at a position offset from the winding section in the opposite horizontal direction relative to the first guide section and the drawing section, the yarn take-up device can be made low-floor.

(2) In the spinning take-up device described in (1) above,
The plurality of distribution rollers are arranged so that an acute angle formed by the yarn running direction of the yarn fed from the guide roller and a horizontal plane is greater than or equal to 0 degrees and less than or equal to 20 degrees.

According to the spinning take-up device described in (2) above, the height of the guide roller can be suppressed, making it possible to lower the spinning take-up device. In other words, the lower limit of the height of the distribution roller is determined by other configurations such as the winding section. Therefore, by arranging the guide roller and the distribution roller so that the acute angle formed by the yarn running direction of the yarn sent from the guide roller to each distribution roller and the horizontal plane is greater than or equal to 0 degrees and less than or equal to 20 degrees, the guide roller and the distribution roller can be lowered, and thus the spinning take-up device can be lowered.

(3) In the spinning take-up device according to (1) or (2),
The plurality of distribution rollers are arranged in series along a yarn path from the guide roller to each of the plurality of distribution rollers in a plan view,
A yarn path from the guide roller to each of the plurality of distribution rollers is formed so as to correspond to the plurality of distribution rollers, and a plurality of yarn paths are formed in a direction perpendicular to the yarn path in a plan view,
Each of the plurality of distribution rollers is arranged so as to avoid the yarn paths corresponding to the other distribution rollers.

According to the spinning take-up device described in (3) above, each of the multiple distribution rollers is arranged to avoid the yarn paths corresponding to the other distribution rollers. Therefore, it is possible to prevent the yarn sent from the guide roller from coming into contact with the roller surfaces of the other distribution rollers.

(4) In the spinning take-up device described in (3) above,
Each of the plurality of distribution rollers has a roller surface having a different height depending on a position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction.

According to the spinning take-up device described in (4) above, the height of the roller surface varies depending on the position in the direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction, so it is possible to ensure the yarn path along which each yarn sent to multiple distribution rollers runs. Therefore, it is possible to prevent the yarn sent from the guide roller from coming into contact with the roller surfaces of the other distribution rollers.

(5) In the spinning take-up device according to (3) or (4),
At least one of the plurality of distribution rollers has an axial direction inclined with respect to the horizontal direction.

According to the spinning take-up device described in (5) above, it is possible to prevent the yarn sent from the guide roller from coming into contact with the roller surface of other distribution rollers with a simple configuration that simply tilts the axial direction of the distribution roller relative to the horizontal direction.

(6) In the spinning take-up device according to any one of (3) to (5),
At least one of the plurality of distribution rollers is a conical roller whose diameter varies depending on the position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction, or a stepped roller whose diameter varies in stages depending on the position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction.

According to the spinning take-up device described in (6) above, it is possible to prevent the yarn sent from the guide roller from coming into contact with the roller surface of the other distribution rollers with a simple configuration in which the distribution roller is changed to a conical roller whose diameter varies depending on the position in the direction perpendicular to both the yarn path and the vertical direction, or a stepped roller whose diameter varies in stages depending on the position in the direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction.

(7) In the spinning take-up device described in (3) above,
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 positions of the roller surfaces of the distribution rollers increasing with increasing distance from the guide roller.

According to the spinning take-up device described in (7) above, 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 it moves away from the guide roller. Therefore, with a simple configuration in which the mounting height positions of multiple distribution rollers are shifted in sequence, it is possible to prevent the yarn sent from the guide roller from coming into contact with the roller surfaces of other distribution rollers.

(8) In the spinning take-up device according to any one of (1) to (7),
The distribution rollers may further include a plurality of driving units corresponding to the plurality of distribution rollers, respectively.

According to the spinning take-up device described in (8) above, each of the multiple distribution rollers can be driven individually, making it possible to reduce the tension difference between the multiple yarns downstream of the multiple distribution rollers. As a result, it is possible to stabilize the quality of the winding package.

According to the present invention, the height of the spinning take-up device can be reduced compared to conventional methods, making it possible to lower the floor, shorten the threading time, and reduce the number of people required.

FIG. 2 is a perspective view showing an outline of a spinning take-up device. FIG. 2 is a side view showing an outline of a spinning take-up device. 11 is an example of a side view showing the periphery of a first guide portion; FIG. FIG. 11 is an example of a plan view showing a plurality of oil supply units, a plurality of yarn suction units, and a first yarn feeding roller. FIG. 4 is an example of a side view showing the periphery of an extension portion. 1 is an example of a side view showing the periphery of a relaxation section, a distribution section, and a winding section. FIG. FIG. 4 is an example of a plan view showing the periphery of a distribution section. 6 is a side view of a second relief roller and each distribution roller; FIG. 10 is a schematic diagram showing an example of an acute angle formed by a yarn running direction of the yarn sent from the second relaxation roller to each distribution roller and a horizontal plane; FIG. (A) an example of a cross-sectional view taken along line A-A in FIG. 8; (B) an example of a cross-sectional view taken along line B-B in FIG. 8; (C) an example of a cross-sectional view taken along line C-C in FIG. 8; (D) an example of a cross-sectional view taken along line D-D in FIG. 8; (E) an example of a cross-sectional view taken along line E-E in FIG. 8; and (F) an example of a cross-sectional view taken along line F-F in FIG. 8. FIG. 1 is an example of a side view showing an outline of a yarn take-off device according to a first modified example. 13A and 13B are diagrams showing a second modified example in which the shape and the mounting manner of the distribution roller are modified. 13A and 13B are diagrams showing a third modified example in which the shape and the mounting manner of the distribution roller are modified. FIG. 13 is a diagram showing a fourth modified example in which the arrangement of the distribution rollers is changed. 1A to 1C are schematic diagrams showing an example of the positional relationship between the first relief roller, the second relief roller, and the distribution roller when the distribution rollers are arranged at different height positions, and showing (A) a first arrangement pattern, (B) a second arrangement pattern, and (C) a third arrangement pattern. 13A and 13B are schematic diagrams showing other examples of the positional relationship between the first relief roller, the second relief roller and the distribution roller when the distribution rollers are arranged at different height positions, and showing (A) a fourth arrangement pattern and (B) a fifth arrangement pattern.

The following describes the yarn take-off device 1 according to the present invention, with reference to the drawings. The yarn take-off device 1 according to the present invention is a device that takes up industrial material yarn, for example, yarn of 300 denier or more. Figure 1 is an example of a perspective view showing the outline of the yarn take-off device 1. Figure 2 is an example of a side view showing the outline of the yarn take-off device 1.

In this embodiment, the X direction and the Y direction are defined as shown in FIG. 1 and FIG. 2. The X direction and the Y direction are both horizontal directions and perpendicular to each other. The X direction is one direction indicated by an arrow in FIG. 1 and FIG. 2. Therefore, when the term "direction opposite to the X direction" is used in this specification, it means the direction opposite to the arrows shown in FIG. 1 and FIG. 2. On the other hand, the Y direction is one of the two directions indicated by arrows in FIG. 1 and FIG. 2.

[1. Overall configuration of the spinning take-up device]
The overall configuration of the yarn take-up device 1 will be described with reference to Fig. 1 and Fig. 2. As shown in Fig. 1 and Fig. 2, the yarn take-up device 1 mainly includes an oil supply section 2, a yarn suction section 4, a yarn take-up section 6, and a winding section 8, in this order from the upstream side in the yarn running direction.

The fuel supply unit 2 has multiple fuel supply units 2. These multiple fuel supply units 2 are arranged in a row in the left-right direction on the paper surface of FIG. 2. The reason why we say "in a row in the left-right direction on the paper surface of FIG. 2" instead of "in a row in the X direction" will be described later with reference to FIG. 4.

Although not shown in Figs. 1 and 2, a spinning machine is disposed above the multiple oil supplying units 2. The multiple oil supplying units 2 apply oil to the yarn 100, which is a bundle of filaments spun from the spinning machine. In this embodiment, the spinning take-up device 1 is equipped with the oil supplying unit 2, but this is not limited thereto, and the spinning machine may be equipped with the oil supplying unit 2.

The yarn suction section 4 has multiple yarn suction sections 4 and is generally called an aspirator. When the spinning take-up device 1 is equipped with an oil supply section 2, these multiple yarn suction sections 4 are provided directly below the corresponding oil supply sections 2, and temporarily suck and hold the yarn 100 when the yarn 100 is wound around each roller or when the yarn breaks. The yarn 100 to which oil has been applied by the oil supply section 2 travels directly downward, passes in front of the yarn suction section 4, and travels toward the first guide section 10 described below. All of the multiple yarn suction sections 4 are configured to generate a suction force at the suction port mainly by the flow of compressed fluid.

The spinning take-up section 6 mainly comprises, in order from the upstream side in the yarn running direction, a first guide section 10, a first yarn feed roller 20, an extension section 28, a relaxation section 60, and a distribution section 70. Details of the first guide section 10, the first yarn feed roller 20, the extension section 28, the relaxation section 60, and the distribution section 70 will be described later.

The winding section 8 mainly comprises a main frame 80, a first winding device 81, and a second winding device 91. The first winding device 81 and the second winding device 91 are arranged side by side in the Y direction. Since the first winding device 81 and the second winding device 91 have the same structure, the following describes the first winding device 81, and the description of the second winding device 91 is omitted. In this embodiment, the winding section 8 comprises two devices, the first winding device 81 and the second winding device 91, but is not limited to this and may comprise one winding device.

The first winding device 81 mainly comprises a disk-shaped turret 82 rotatably mounted on the main frame 80, two winding shafts 84 that are cantilevered on the turret 82 and have an axial direction in the X direction, and a number of traverse devices 85 that traverse the yarn 100.

A number of bobbins 86 are attached in series to the winding shaft 84. The winding shaft 84 is rotated by a motor (not shown), which rotates the number of bobbins 86 attached to the winding shaft 84 and winds the yarn 100 onto the rotating number of bobbins 86. The yarn 100 wound onto the bobbins 86 forms a winding package.

Here, the positional relationship between the extension section 28 and the winding section 8 of the spinning take-up section 6 will be described with reference to Figs. 1 and 2. The extension section 28 is located upstream of the winding section 8 in the yarn running direction and opposite the X direction from the winding section 8. Specifically, the extension section 28 and the winding section 8 are horizontally arranged on the same floor so that the axial direction of the winding shaft 84 and the running direction of the yarn 100 in the extension section 28 in a plan view are parallel to each other. That is, in this embodiment, unlike a conventional spinning take-up device in which the work area on the first floor is divided into upper and lower parts, the winding section is arranged in the lower work area on the first floor, and the extension section is arranged in the upper work area, the extension section 28 is arranged at a height position almost the same as that of the winding section 8. In this way, the extension section 28 can be arranged to the extent that one operator can perform the threading work of the extension section and the winding section without using a work cart or the like. As a result, it is possible to achieve a reduction in the threading work time and to achieve labor saving.

The first guide section 10 is disposed near the top of the extension section 28. The yarn suction section 4 is disposed directly above the first guide section 10, and the oil supply section 2 is disposed directly above the yarn suction section 4. The effects of disposing each member in close proximity in this manner will be described later, including their positional relationship with the first yarn feed roller 20.

[2. Spinning take-up section]
The first guiding section 10, the first yarn feed roller 20, the stretching section 28, the relaxation section 60, and the distribution section 70 included in the yarn take-up section 6 will be described below.

[2-1. First guide section, first yarn feed roller]
FIG. 3 is an example of a side view showing the periphery of the first guide section 10. As shown in FIG. 3, the first guide section 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 line in the left-right direction on the paper surface of FIG. 3. In detail, 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. The reason why the description "lined up in a line in the left-right direction on the paper surface of FIG. 3" is used instead of "lined up in a line in the X direction" will be described later with reference to FIG. 4 together with the plurality of fuel supply sections 2 described as "lined up in a line in the left-right direction on the paper surface of FIG. 2".

In this embodiment, the 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 direction-changing rollers 10A to 10L may be arranged horizontally or offset in the up-down direction.

The multiple direction-changing rollers 10A-10L are rollers for sending multiple (e.g., 12) yarns 100, which are spun downward from a spinning machine and coated with oil, to the first yarn feed roller 20, which is located below the horizontal direction, for each of the multiple yarns 100. Note that "below the horizontal direction" preferably means slightly below the horizontal direction. For example, it is preferable that the acute angle formed by the yarn running direction of the yarn 100 sent from the direction-changing rollers 10A-10L to the first yarn feed roller 20 and the horizontal plane is greater than 5 degrees and less than 30 degrees. The "acute angle formed by the yarn running direction of the yarn 100 sent from the direction-changing rollers 10A-10L to the first yarn feed roller 20 and the horizontal plane" corresponds to the angle α shown in FIG. 3.

The yarn 100, whose running direction has been changed by the direction-changing rollers 10A-10F, is sent to the first winding device 81 (see FIG. 1) and wound up. The yarn 100, whose running direction has been changed by the direction-changing rollers 10G-10L, is sent to the second winding device 91 (see FIG. 1) and wound up.

The first yarn feed roller 20 is a roller provided on the yarn path from the first guide section 10 to the extension section 28, and has an axial direction that is approximately perpendicular to both the yarn running direction and the vertical direction (i.e., the Y direction). The first yarn feed roller 20 is located between the first guide section 10 (i.e., the multiple direction change rollers 10A to 10L) and the extension section 28 in the vertical direction, and is located on the opposite side to the X direction from both the first guide section 10 (more specifically, the direction change roller 10G) and the extension section 28 in the horizontal direction. In other words, the first guide section 10 and the extension section 28 are located above and below at a position where they overlap in a plan view, while the first yarn feed roller 20 does not overlap either the first guide section 10 or the extension section 28 in a plan view, and is located at a position off in the horizontal direction. However, from the viewpoint of space saving, it is preferable that the first yarn feed roller 20 is located near the first guide section 10 and the extension section 28 in the horizontal direction.

In this way, by arranging the first guide section 10 near the top of the extension section 28 and arranging the first yarn feed roller 20 at a position farther away from both the first guide section 10 and the extension section 28 in the opposite direction to the X direction, the vertical distance between the first guide section 10 and the extension section 28 can be reduced. In addition, by reducing the vertical distance between the first guide section 10 and the extension section 28, the heights of the first guide section 10, the yarn suction section 4 located directly above the first guide section 10, and the oil supply section 2 located directly above the yarn suction section 4 can also be reduced, and the entire spinning take-up device 1 can be made low-floor. As a result, it is no longer necessary to divide the work area on the first floor into upper and lower sections and to arrange operators in each work area as in the conventional case, and since threading work can be performed by a single operator, the threading work time can be shortened and manpower can be reduced.

The yarn 100 sent out from the first yarn feed roller 20 advances toward the stretching section 28. The winding angle of the yarn 100 around the first yarn feed roller 20 is less than 360 degrees.

The multiple yarns 100 spun downward from the spinning machine are not only in contact with the roller surfaces of the multiple direction-changing rollers 10A to 10L, but are also wound around them at a winding angle of, for example, 45 degrees or more and less than 90 degrees. In particular, by installing the first yarn feed roller 20 on the opposite side of the X direction from the direction-changing roller 10G and making the angle α as small as possible, it is possible to increase the winding angle of the yarn around each of the direction-changing rollers 10A to 10L, and the grip force of the yarn 100 and each of the direction-changing rollers 10A to 10L is increased. Therefore, tension can be applied to the yarn 100 between the multiple direction-changing rollers 10A to 10L and the first yarn feed roller 20, and the running of the yarn 100 downstream of the multiple direction-changing rollers 10A to 10L can be stabilized. Furthermore, a guide for finely adjusting the tension on the yarn, as was previously provided, is no longer necessary, and the oil supply unit 2 and the yarn suction unit 4 can be positioned lower than the spinning take-up device equipped with a guide. Moreover, because the running direction of the yarn 100 is changed by the rollers, the burden on the yarn 100 can be reduced as much as possible. If the yarn separation position on the peripheral surface of the direction-changing rollers 10A-10L is vertically lower than the yarn entry position on the peripheral surface of the first yarn feed roller 20, the winding angle at which the roller surfaces of the direction-changing rollers 10A-10L contact each other exceeds 90 degrees.

The multiple direction-changing rollers 10A-10L are provided with multiple motors (motor 76 shown in FIG. 10 described later) corresponding to the respective rollers. If the first yarn feed roller 20 is positioned further away from both the first guide section 10 and the extension section 28 in the opposite direction to the X direction, the distance (i.e., yarn length) from each direction-changing roller 10A-10L to the first yarn feed roller 20 may differ, resulting in different tensions for each of the multiple yarns 100. Therefore, by making it possible for each of the multiple direction-changing rollers 10A-10L to be driven individually, the yarn feed speed is stabilized, and it is possible to suppress variations in yarn tension even when the yarn lengths are different.

Next, the positional relationship between the multiple oil supply units 2, the multiple yarn suction units 4, and the multiple direction change rollers 10A to 10L will be described with reference to Figure 4. Figure 4 is an example of a plan view showing the multiple oil supply units 2, the multiple yarn suction units 4, and the first yarn feed roller 20.

As shown in FIG. 4, the oil supply unit 2 has multiple oil supply units 2A-2L that are arranged in a row at equal intervals in the left-right direction on the paper surface of FIG. 4 and in the Y direction (i.e., a direction perpendicular to both the winding shaft 84 (see FIG. 1) and the vertical direction). In addition, although not shown in FIG. 4, each of the yarn suction units 4A-4L (see FIG. 3) is arranged directly below each of the oil supply units 2A-2L. Note that, like the direction-changing rollers 10A-10L, the oil supply units 2A-2F are arranged from left to right on the paper surface of FIG. 4, and the oil supply units 2G-2L are arranged from right to left on the paper surface of FIG. 4.

Although the first guide section 10 (multiple direction-changing rollers 10A-10L) is not shown in FIG. 4, each of the direction-changing rollers 10A-10L is arranged directly below each of the yarn suction sections 4A-4L. Therefore, the multiple direction-changing rollers 10A-10L are also arranged in a row at equal intervals in the Y direction. In this way, the multiple yarns 100 spun from the spinning machine advance in a shifted manner in the Y direction so that they are parallel in a plan view, preventing the yarns from interfering with each other or becoming entangled. In particular, in this embodiment, the vertical distance between the first guide section 10 and the extension section 28 is small, but even in such a case, the multiple yarns 100 can run in parallel, preventing the multiple yarns from interfering with each other or becoming entangled. In addition, the multiple direction-changing rollers 10A-10L can easily be threaded onto a guide (not shown) or intertwining device (not shown) that holds the yarn intervals and is arranged in the yarn path between the distribution rollers 70A-70L. However, this is not limited to this. There is no need to provide guides or intertwining devices to maintain the yarn spacing between the multiple direction-changing rollers 10A-10L and the distribution rollers 70A-70L.

The reason why the arrangement of the multiple oil supply units 2A-2L and the multiple thread suction units 4A-4L is described as "arranged in the left-right direction and in the Y direction on the paper of FIG. 4" instead of "arranged offset in the X direction and in the Y direction" is because the X direction means one direction. In other words, this is to avoid the possibility of inconsistency with the description "offset in the Y direction" when "arranged in the X direction" is interpreted as being arranged in series in one direction such as the X direction. The reason why "arranged in the X direction" is described as "arranged in a line in the left-right direction on the paper of FIG. 2" or "arranged in a line in the left-right direction on the paper of FIG. 3" instead of "arranged in a line in the X direction" in the explanation with reference to FIG. 2 and FIG. 3 is also for the same purpose. In other words, this is to avoid the interpretation that "arranged in a line in the X direction" means that there is no offset in the Y direction.

The number of the oil supply units 2, the yarn suction units 4, the direction change rollers 10A-10L, the traverse devices 85, and the bobbins 86 is not particularly limited.

[2-2. Stretching part]
Fig. 5 is an example of a side view showing the periphery of the drawing unit 28. As shown in Fig. 5, the drawing unit 28 mainly includes a plurality of pre-heating rollers 31 for heating the yarn 100 before drawing, a plurality of drawing rollers 41 arranged downstream of the plurality of pre-heating rollers 31, and a plurality of heat-setting rollers 51 arranged downstream of the plurality of drawing rollers 41 for conditioning the drawn yarn 100.

The multiple preheating rollers 31, the multiple stretching rollers 41, and the multiple heat setting rollers 51 are each housed in a thermal insulation box (no reference number), and would not normally appear in the drawings, but are shown for convenience in each of the figures referenced in this specification.

By the way, in the past, the heating length was ensured by winding the yarn around a long roller with a relatively large roller width multiple times, but in the spinning take-up device 1 of this embodiment, a short roller with a smaller roller width than the conventional one is used to wind the yarn around the roller less than one time. However, in order to ensure the heating length while winding the yarn around the roller less than one time, a larger number of rollers than the conventional one are required. In particular, a spinning take-up device that produces industrial material yarns of 300 denier or more requires a larger heating length than a spinning take-up device for clothing yarns. Therefore, in the spinning take-up device 1 of this embodiment, the multiple pre-heating rollers 31, the multiple stretching rollers 41, and the multiple heat-set rollers 51 are horizontally arranged in series in the X direction on the same floor, so that the heating length is ensured by winding the yarn around the roller less than one time (the winding angle around the roller is less than 360 degrees), and the stretching section 28 can be made low-floor. The multiple pre-heating rollers 31, the multiple stretching rollers 41, and the multiple heat-set rollers 51 correspond to the "multiple rollers" of this invention.

The yarn feed speed of at least the most upstream stretching roller 41 among the multiple stretching rollers 41 is greater than the yarn feed speed of the most downstream preheating roller 31 among the multiple preheating rollers 31. Therefore, the yarn 100 is stretched between the most downstream preheating roller 31 among the multiple preheating rollers 31 and the most upstream stretching roller 41 among the multiple stretching rollers 41.

The surface temperature of the multiple preheating rollers 31 is set to a temperature (e.g., 90°C) that is equal to or higher than the glass transition point of the yarn 100. The surface temperature of the multiple first stretching rollers 41 is set to a temperature (e.g., 110°C) higher than the surface temperature of the preheating roller 31. The surface temperature of the multiple heat setting rollers 51 is set to a temperature (e.g., 130°C) higher than the surface temperature of the stretching roller 41.

In this embodiment, the surface temperatures of all the rollers of the multiple preheating rollers 31 are raised, but this is not limited to this, and it is also possible that the surface temperature of at least one roller is raised and the surface temperature of the remaining rollers is not raised. Similarly, in this embodiment, the surface temperatures of all the rollers of the multiple stretching rollers 41 and the multiple heat set rollers 51 are raised, but this is not limited to this, and it is also possible that the surface temperature of at least one roller is raised and the surface temperature of the remaining rollers is not raised. Also, it is not essential that the multiple preheating rollers 31 are set to the same surface temperature. The multiple preheating rollers 31 may be set to different surface temperatures. The same applies to the multiple stretching rollers 41 and the multiple heat set rollers 51, and they may be set to the same surface temperature or different surface temperatures.

[2-3. Relaxation part]
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 relaxation section 60 is disposed directly above the heat set roller 51.

The relaxation section 60 has a first relaxation roller 61 and a second relaxation roller 62 that is disposed downstream of the first relaxation roller 61 in the yarn running direction. Both the first relaxation roller 61 and the second relaxation roller 62 are rollers whose axial direction is substantially perpendicular to the yarn running direction of the yarn path in a plan view (i.e., the Y direction).

The yarn 100 sent out from the most downstream heat set roller 51 of the multiple heat set rollers 51 runs through the first relaxation roller 61 and the second relaxation roller 62 in that order. The second relaxation roller 62 corresponds to the "guide roller" of the present invention.

The first relief roller 61 and the second relief roller 62 are arranged offset from each other in the vertical direction. Also, the first relief roller 61 and the second relief roller 62 are arranged offset from each other in the X direction, with the first relief roller 61 on the X direction side and the second relief roller 62 on the opposite side to the X direction. By arranging the first relief roller 61 and the second relief roller 62 in this way, the height of the second relief roller 62 can be reduced, making it easier to thread the yarn on the second relief roller 62.

The winding angle of the yarn 100 around the first relaxation roller 61 and the second relaxation roller 62 is both less than 360 degrees. The surface temperature of the relaxation rollers 61 and 62 is set to a temperature (e.g., 100°C) lower than that of the heat set roller 51 so as to promote relaxation of the internal distortion of the yarn 100. However, it is not essential that the first relaxation roller 61 and the second relaxation roller 62 are set to the same surface temperature, and each of the relaxation rollers 61 and 62 may be set to a different surface temperature.

In this embodiment, the surface temperature of both the first relief roller 61 and the second relief roller 62 is increased, but this is not limited to the above. For example, the surface temperature of at least one of the first relief roller 61 and the second relief roller 62 may be increased, and the surface temperature of the other roller may not be increased.

The yarn 100 sent out from the second relaxation roller 62 arranged downstream in the yarn running direction in the relaxation section 60 is guided to the distribution section 70. The relaxation section 60 and the distribution section 70 correspond to the "second guide section" of the present invention.

[2-4. Distribution section]
6, the distribution unit 70 includes a plurality of distribution rollers 70A to 70F. The plurality of distribution rollers 70A to 70F are horizontally arranged in series in the X direction in the following order: distribution roller 70A, distribution roller 70B, distribution roller 70C, distribution roller 70D, distribution roller 70E, and distribution roller 70F.

In addition, multiple bobbins 86A to 86F can be attached to one winding shaft 84 of the first winding device 81. In this embodiment, the multiple bobbins 86A to 86F are attached to the winding shaft 84 of the first winding device 81 in the X direction in the following order: bobbin 86A, bobbin 86B, bobbin 86C, bobbin 86D, bobbin 86E, and bobbin 86F.

The multiple distribution rollers 70A-70F correspond to the multiple bobbins 86A-86F, respectively. Each distribution roller 70A-70F changes the running direction of the yarn 100 sent from the second relaxation roller 62 downward. In this way, the multiple yarns 100 are sent from each distribution roller 70A-70F to the corresponding bobbins 86A-86F, one by one.

The multiple bobbins 86A-86F wind the yarn 100 whose running direction has been changed by the corresponding distribution rollers 70A-70F, respectively, to form a winding package. In addition, multiple traverse devices 85A-85F corresponding to the respective bobbins 86A-86F are arranged directly above the multiple bobbins 86A-86F. However, in FIG. 6, for the sake of convenience, only the traverse device 85A and the traverse device 85F are given reference numbers, and the reference numbers for the traverse devices 85B-85E are omitted. In addition, multiple distribution rollers 70A-70F corresponding to the multiple traverse devices 85A-85F, i.e., the multiple bobbins 86A-86F, are arranged directly above the multiple traverse devices 85A-85F, respectively.

Figure 7 is an example of a plan view showing the periphery of the distribution unit 70. As shown in Figure 7, the distribution unit 70 includes multiple distribution rollers 70A-70F as described above, as well as multiple distribution rollers 70G-70L. The multiple yarns 100 sent out from the second relaxation roller 62 are sent in a direction toward the distribution rollers 70A-70F and a direction toward the distribution rollers 70G-70L.

As described above, the multiple distribution rollers 70A-70F correspond to the multiple bobbins 86A-86F mounted on the winding shaft 84 of the first winding device 81. In contrast, the multiple distribution rollers 70G-70L correspond to the multiple bobbins (not shown) mounted on the winding shaft 84 of the second winding device 91 (see FIG. 1). Therefore, like the individual distribution rollers 70A-70F, each distribution roller 70G-70L changes the running direction of the yarn 100 sent from the second relaxation roller 62 downward.

In this way, the yarn 100 sent from the heat set roller 51 (see FIG. 6) on the most downstream side of the stretching section 28 (see FIG. 6) is sent to the winding section 8 via the relaxation section 60 and the distribution section 70. That is, the yarn 100 sent from the heat set roller 51 on the most downstream side once runs above the stretching section 28, and is wound up on the winding section 8 via the relaxation section 60 and the distribution section 70. Therefore, even if the winding section 8 and the stretching section 28 are arranged horizontally on the same floor, the yarn 100 sent from the stretching section 28, i.e., the heat set roller 51 on the most downstream side, can be wound up on the winding section 8. That is, by winding the yarn 100 sent from the heat set roller 51 on the most downstream side to the winding section 8 via the relaxation section 60 and the distribution section 70 arranged at a higher position than the winding section 8, the stretching section 28 can be arranged horizontally on the same floor as the winding section 8. As a result, the height of the drawing section 28 can be reduced, making it possible to lower the floor, and in turn, the height of the spinning take-up device 1 can be reduced, making it possible to lower the floor.

[2-5. Yarn path from relaxation section to distribution section]
Next, the yarn path from the relaxation section 60 to the distribution section 70 will be described with reference to Fig. 7. As shown in Fig. 7, a plurality of (e.g., 12) yarns 100 fed from the second relaxation roller 62 travel along any one of a plurality of yarn paths 96A to 96L spaced apart in a direction perpendicular to the yarn path in a plan view.

Yarn path 96A is the path of yarn 100 traveling toward distribution roller 70A. The yarn 100 traveling along yarn path 96A is the yarn 100 sent from direction change roller 10A. Similarly, yarn paths 96B-96L are the paths of yarn 100 traveling toward distribution rollers 70B-70L, respectively. The yarn 100 traveling along yarn paths 96B-96L is the yarn 100 sent from direction change rollers 10B-10L, respectively.

The yarn paths 96A to 96F are spaced apart from each other in the Y direction. Similarly, the yarn paths 96G to 96L are spaced apart from each other in the Y direction. As described above with reference to FIG. 4, the multiple direction-changing rollers 10A to 10L (see FIG. 3) are arranged with a shift in the Y direction. The multiple yarns 100 run parallel to each other from the first guide section 10 (see FIG. 2) to the second relaxation roller 62, so that the running direction in a plan view is only the X direction. Therefore, the yarn 100 can be run so that the yarn path does not shift in the axial direction of each roller (direction-changing rollers 10A to 10L, first yarn feed roller 20, multiple pre-heating rollers 31, multiple first stretching rollers 41, multiple heat-setting rollers 51, multiple relaxation rollers 61, 62) from the first guide section 10 (see FIG. 2) to the stretching section 28 (see FIG. 2).

[2-6. Positional relationship between relaxation section and distribution section]
Next, when multiple distribution rollers 70A to 70F are arranged horizontally in series in the X direction, the positional relationship between the relaxation section 60 and the distribution section 70, more specifically, the height positional relationship between the second relaxation roller 62 on the downstream side of the relaxation section 60 and each of the distribution rollers 70A to 70F, will be explained.

Figure 8 is an example of a side view of the second relaxation roller 62 and each distribution roller 70A to 70F. As in the spinning take-up device 1 of this embodiment, when multiple (for example, 12 in this embodiment) yarns 100 sent from the stretching section 28 (see Figure 6) are wound into the winding section 8 via the relaxation section 60 and the distribution section 70, the following requirements must be met. That is, for example, it is necessary that the yarn 100 from the second relaxation roller 62 to the contact point of the farthest distribution roller 70F, 70L (see Figure 7) does not come into contact with the roller surfaces of other distribution rollers 70A to 70E, 70G to 70K (see Figure 7) or other rollers upstream of the second relaxation roller 62 (for example, the first relaxation roller 61 (see Figure 6)). Therefore, it is necessary to arrange the relaxation section 60 (first relaxation roller 61, second relaxation roller 62) and distribution rollers 70A to 70L within a range that satisfies this requirement.

Incidentally, the lower limit of the height direction at which the distribution rollers 70A to 70F can be arranged is determined by the relative positional relationship with, for example, the traverse devices 85A to 85F and the bobbins 86A to 86F (see FIG. 8). Therefore, in order to suppress the height of the second relief roller 62, it is preferable to arrange the distribution rollers 70A to 70F at the lower limit or near the lower limit in the height direction, and then determine the height position of the second relief roller 62 within a range that satisfies the above requirements. Although it also depends on the distance from the second relief roller 62 to the contact point of each of the distribution rollers 70A to 70L (see FIG. 7), in this embodiment, the second relief roller 62 is arranged so that the acute angle formed by the yarn running direction of the yarn 100 sent from the second relief roller 62 to each of the distribution rollers 70A to 70F and the horizontal plane is, for example, greater than 0 degrees and less than 20 degrees. In this way, by arranging the second relief roller 62 at a position as low as possible, it is possible to prevent the work of threading the yarn on the second relief roller 62 from being a high-altitude work. The "acute angle formed by the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70A to 70F and a horizontal plane" corresponds to the angle β shown in Fig. 9. Fig. 9 is an example of a schematic diagram showing the acute angle β formed by the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to the distribution roller 70A and a horizontal plane. In Fig. 9, the distribution roller 70A is illustrated as an example among the multiple distribution rollers 70A to 70F. In this embodiment, the second relaxation roller 62 is arranged so that the acute angle β formed by the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70A to 70F and a horizontal plane is, for example, greater than 0 degrees and less than or equal to 20 degrees.

However, as described above, the distribution rollers 70A to 70F are arranged horizontally in series in the X direction. Therefore, the acute angle β formed by the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70A to 70F varies depending on the distance from the second relaxation roller 62 to each distribution roller 70A to 70F. In more detail, the closer the distance from the second relaxation roller 62, the larger the above angle β. In other words, the above angle β is the largest when the acute angle β formed by the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to the distribution roller 70A is the largest, and the acute angle β formed by the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to the distribution roller 70F is the smallest. Therefore, when the above angle β is set to be greater than 0 degrees and less than or equal to 20 degrees, the second relaxation roller 62 should be positioned so that the angle β formed by the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to the distribution roller 70F and the horizontal plane is greater than 0 degrees, and the acute angle β formed by the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to the distribution roller 70A and the horizontal plane is less than or equal to 20 degrees.

Note that each distribution roller 70A-70F and each distribution roller 70G-70L (see FIG. 7) are in a paired relationship. Therefore, the angle β between the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70G-70L is approximately the same as the angle β between the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70A-70F.

[2-7. Installation of distribution roller]
Next, the mounting mode of each distribution roller 70A to 70L will be described with reference to Fig. 10. Fig. 10 is an example of a cross-sectional view taken in a direction perpendicular to the X direction on the X-direction side of each distribution roller 70A to 70L. More specifically, Fig. 10(A) is a cross-sectional view taken along line A-A in Fig. 8. Fig. 10(B) is a cross-sectional view taken along line B-B in Fig. 8. Fig. 10(C) is a cross-sectional view taken along line CC in Fig. 8. Fig. 10(D) is a cross-sectional view taken along line D-D in Fig. 8. Fig. 10(E) is a cross-sectional view taken along line E-E in Fig. 8. Fig. 10(F) is a cross-sectional view taken along line F-F in Fig. 8.

As shown in Figures 10(A) to (F), the axial direction of each of the distribution rollers 70A to 70L is inclined with respect to the horizontal direction. The axial direction of the distribution rollers 70A to 70L is inclined with respect to the horizontal direction so that each of the multiple distribution rollers 70A to 70L can avoid the yarn 100 traveling on the yarn paths 96A to 96L corresponding to the other distribution rollers 70A to 70L. Moreover, with a simple configuration in which the axial direction of the distribution rollers 70A to 70L is inclined with respect to the horizontal direction, it is possible to avoid contact between the yarn and the roller surface.

In consideration of the objective of "preventing the yarn 100 from the second relaxation roller 62 to the contact point of the farthest distribution roller 70F, 70L from coming into contact with the roller surfaces of the other distribution rollers 70A to 70E, 70G to 70K," it is not essential that the axial direction of distribution roller 70F and distribution roller 70L be inclined relative to the horizontal direction.

The installation mode of the distribution rollers 70A to 70L will be described in detail. The distribution rollers 70A to 70F are attached to the installation surface 72a on one side (the right side of the paper in FIG. 10) of the installation frame 72, and the distribution rollers 70G to 70L are attached to the installation surface 72b on the other side (the left side of the paper in FIG. 10) of the installation frame 72. The installation frame 72 is arranged so that the installation surface 72a on one side slopes downward to the right from above and downward, and the installation surface 72b on the other side slopes downward to the left from above and downward. The distribution rollers 70A to 70F are installed so that their axial direction is perpendicular to the installation surface 72a on one side, so that the axial direction of the distribution rollers 70A to 70F is upward from the base end on the side attached to the installation surface 72a on one side to the tip end on the opposite side to the base end. Similarly, distribution rollers 70G-70L are attached so that their axial direction is perpendicular to the mounting surface 72b on the other side, so that the axial direction of distribution rollers 70G-70L is upward from the base end to the tip end. In this embodiment, distribution rollers 70A-70F are attached to the mounting surface 72a on one side so that the acute angle formed by the axial direction and the horizontal direction is approximately 30 degrees. On the other hand, distribution rollers 70G-70L are attached to the mounting surface 72b on the other side so that the acute angle formed by the axial direction and the horizontal direction is approximately 30 degrees.

In this way, by tilting the distribution rollers 70A-70L so that they face upward from the base end to the tip end, it is possible to prevent the yarn 100 from coming into contact with the surface of the other distribution rollers before it reaches the corresponding distribution roller. As a result, it is possible for multiple yarns 100 to enter the distribution rollers 70A-70F and distribution rollers 70G-70L in parallel, making it possible to reduce the height of the first relief roller 61 and each distribution roller 70A-70L.

In addition, when the distribution rollers 70A to 70L are arranged horizontally along the yarn paths of the multiple yarns 100 (i.e., in the X direction), at the same point from the second relaxation roller 62, the yarn 100 traveling along the yarn path to the distribution roller that is farther away from the second relaxation roller 62 travels at a higher position. Therefore, in theory, even if the distribution rollers 70A to 70L are not tilted, it may appear as if the yarn 100 does not come into contact with the surface of the other distribution rollers. However, in reality, due to the bending and vibration of the yarn 100, if the distribution rollers 70A to 70L are not tilted, the yarn 100 may come into contact with the surface of the other distribution rollers or other parts. Therefore, in this embodiment, the distribution rollers 70A to 70L are installed so that the axial direction is upward from the base end to the tip end. By doing this, it is possible to secure the yarn paths 96B-96F, 96H-L of each yarn on the yarn path until the yarn 100 reaches the corresponding distribution roller, and thus to secure space in which the yarn 100 can run even if it is bent or vibrated. In particular, it is possible to run the yarn 100 up to the contact point of the distribution rollers 70F, 70L, which are the farthest from the second relaxation roller 62, without coming into contact with the roller surfaces of the other distribution rollers 70A-70E, 70G-70K.

The distribution rollers 70A to 70L are each provided with a corresponding motor 76. In the spinning take-up device 1 of this embodiment, the distance from the second relaxation roller 62 to each of the distribution rollers 70A to 70L is different, so there is a risk that the tension of each of the multiple yarns 100 will be different downstream of each of the distribution rollers 70A to 70L. If the tension of each of the multiple yarns 100 is different, it will be difficult to maintain a constant quality of the winding package depending on the bobbin being wound. Therefore, by making it possible to drive each of the multiple distribution rollers 70A to 70L individually, the tension difference of the multiple yarns 100 downstream of each of the distribution rollers 70A to 70L can be reduced, making it possible to stabilize the quality of the winding package.

[3. Effects]
According to the spinning take-up device 1 of the present embodiment described above, the multiple yarns 100 from the drawing section 28 are sent to the winding section via the second relaxation roller 62 and the distributor 70. Therefore, it is possible to horizontally arrange the drawing section 28 and the winding section 8 on the same floor so that the axial direction of the winding shaft 84 is parallel to the running direction of the yarns 100 in the drawing section 28 in a plan view. As a result, it is no longer necessary to divide the work area on the first floor into upper and lower sections and to arrange operators in each work area as in the conventional case, and since the yarn threading work can be performed by a single operator, it is possible to shorten the yarn threading work time and reduce the number of workers.

The second relief roller 62 and the distribution rollers 70A-70L are arranged so that the angle β between the yarn running direction of the yarn 100 sent from the second relief roller 62 and the horizontal plane is 0 degrees or more and 20 degrees or less. The lower limit of the height of the distribution rollers 70A-70L is determined, for example, by the relative positional relationship with the multiple traverse devices 85A-85F and the bobbins 86A-86F. Therefore, by arranging the second relief roller 62 and the distribution rollers 70A-70L so that the angle β between the yarn running direction of the yarn 100 sent from the second relief roller 62 and the horizontal plane is 0 degrees or more and 20 degrees or less, it is possible to suppress the height of the second relief roller 62 and the distribution rollers 70A-70L.

The distribution rollers are arranged in a row along the yarn path from the second relief roller 62 to the distribution rollers, with multiple distribution rollers 70A-70L. The yarn path from the second relief roller 62 to the distribution rollers 70A-70L is formed with multiple yarn paths 96A-96L that are spaced apart in a direction perpendicular to the yarn path in a plan view, corresponding to the multiple distribution rollers 70A-70L. Each of the multiple distribution rollers 70A-70L is arranged to avoid the yarn paths 96A-96L that correspond to the other distribution rollers 70A-70L. Specifically, the axial direction of the distribution rollers 70A-70L is inclined relative to the horizontal direction. This makes it possible to prevent the yarn 100 sent from the second relief roller 62 from coming into contact with the roller surfaces of the other distribution rollers 70A-70L.

In addition, multiple motors 76 corresponding to each of the multiple distribution rollers 70A to 70L are provided. Therefore, each of the multiple distribution rollers 70A to 70L can be driven individually, making it possible to reduce the tension difference between the multiple yarns 100 downstream of the multiple distribution rollers 70A to 70L. As a result, it is possible to stabilize the quality of the winding package. In particular, the multiple distribution rollers 70A to 70L are prone to tension differences because they are at different distances from the second relaxation roller 62. However, by providing multiple motors 76 corresponding to each of the multiple distribution rollers 70A to 70L, it is possible to reduce and stabilize the tension difference between the multiple yarns 100 downstream of the multiple distribution rollers 70A to 70L.

[4. Modifications]
Next, a description will be given of a modified example in which various changes have been made to the spun yarn take-up device 1 of the present embodiment. However, in describing the modified example, the same reference numerals will be used to designate components having the same configuration as those of the above-described embodiment, and the description thereof will be omitted as appropriate.

[4-1. First Modification]
In the above-described embodiment, for example as shown in Fig. 2, the drawing section 28 is arranged horizontally on the same floor as the winding section 8, and the yarn 100 sent from the drawing section 28 is sent to the winding section 8 via the relaxation section 60 and the distribution section 70 arranged above the drawing section 28, but this is not limited to this. In other words, it is not essential that the relaxation section 60 is arranged above the drawing section 28.

Figure 11 is an example of a side view showing the outline of the spinning take-up device 1A according to the first modified example. In the spinning take-up device 1A shown in Figure 11, the relaxation section 60 is arranged downstream of the stretching section 28. In addition, the second yarn feed rollers 94, 95 are arranged above the relaxation section 60. The yarn 100 sent from the relaxation section 60 is sent to the winding section 8 via the second yarn feed rollers 94, 95 and the distribution section 70. Even in this case, the yarn 100 sent from the relaxation section 60 can be once run above the stretching section 28 and the relaxation section 60, and sent to the winding section 8 via the second yarn feed rollers 94, 95 and the distribution section 70. Therefore, even if the winding section 8 and the stretching section 28 are horizontally arranged on the same floor, the yarn 100 sent from the stretching section 28 can be wound into the winding section 8. The number of second yarn feed rollers is not limited to two. There may be one, or three or more. The number of second yarn feed rollers can be appropriately selected depending on the contact angle and contact area of the yarn 100 fed from the relaxation section 60 when it is wound around the circumferential surface of the second yarn feed roller. In the yarn take-up device 1A according to the first modified example, the second yarn feed roller corresponds to the "guide roller" of the present invention.

[4-2. Second Modification]
In the above-described embodiment, the distribution rollers 70A to 70L are attached so that the axial direction is upward from the base end to the tip end, as shown in Fig. 10. By attaching the distribution rollers 70A to 70L in this manner, it is possible to prevent the yarn 100 from, for example, the second relaxation roller 62 to the contact point of the farthest distribution roller 70F, 70L from contacting the roller surfaces of the other distribution rollers 70A to 70E, 70G to 70K. However, the shape and mounting manner of the distribution rollers 70A to 70L do not necessarily have to be the shape and mounting manner shown in Fig. 10, and may be, for example, the shape and mounting manner shown in Fig. 12.

Figure 12 shows a second modified example in which the shape and mounting manner of the distribution rollers are modified. In Figure 12, the shape of the distribution rollers is changed so that, for example, the yarn 100 from the second relaxation roller 62 to the contact point of the farthest distribution rollers 77F, 77L does not come 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 conical in cross section with the roller diameter increasing from the base end to the tip end, and are attached to the mounting surface 72a on one side (right side of the paper in FIG. 12) or the mounting surface 72b on the other side (left side of the paper in FIG. 12) of the mounting frame 72 so that the axial direction is the Y direction. Even in such a case, the height of the roller surface can be changed according to the Y direction position, and it is possible to secure space for the yarn 100 to run on the yarn path until the yarn 100 reaches the corresponding distribution roller. As a result, it is possible to prevent the yarn 100 from coming into contact with the roller surfaces of the other distribution rollers 77A to 77E, 77G to 77K from the second relaxation roller 62 to the contact point of the farthest distribution roller 77F, 77L.

As for distribution rollers 77F and 77L, like distribution rollers that are installed with an inclined axial direction, it is not essential that they have a conical cross section.

[4-3. Third Modification]
Fig. 13 is a diagram showing a third modified example in which the shape and the mounting manner of the distribution rollers are modified in the same manner as in the second modified example. In Fig. 13, for example, the yarn 100 from the second relaxation roller 62 to the contact point of the farthest distribution roller 78F, 78L is prevented from contacting the roller surfaces of the other distribution rollers 78A to 78E, 78G to 78K.

Specifically, the distribution rollers 78A to 78L shown in FIG. 13 are stepped distribution rollers in which the roller diameter increases in a stepped manner from the base end to the tip end, and are attached to the mounting surface 72a on one side (the right side of the paper in FIG. 13) or the mounting surface 72b on the other side (the left side of the paper in FIG. 13) of the mounting frame 72 so that the axial direction is the Y direction. Even in such a case, the height of the roller surface can be changed according to the Y direction position, and it is possible to secure a space in which the yarn 100 can run on the yarn path until the yarn 100 reaches the corresponding distribution roller. As a result, it is possible to prevent the yarn 100 from coming into contact with the roller surfaces of the other distribution rollers 78A to 78E, 78G to 78K, for example, from the second relaxation roller 62 to the contact point of the farthest distribution roller 78F, 78L.

As for distribution rollers 78F and 78L, like distribution rollers that are installed with an inclined axial direction, it is not essential that they be stepped distribution rollers.

The shape and mounting manner of the distribution rollers do not necessarily have to be the same for all of the multiple distribution rollers. For example, multiple distribution rollers may include a distribution roller mounted with an inclined axial direction as described in this embodiment, a distribution roller with a conical cross section as described in variant 2, and a stepped distribution roller as described in variant 3.

[4-4. Fourth Modification]
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 to this, and may be arranged as shown in FIG. 14. FIG. 14 is a diagram showing a fourth modified example 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, as long as the yarn 100 running along the yarn path 96F from the second relaxation roller 62 to the contact point of the farthest distribution roller 70F does not come into contact with the roller surfaces of the other distribution rollers 70A to 70E, the height positions of the distribution rollers 70A to 70F do not need to be horizontal. Although not shown in FIG. 14, the same applies to the distribution rollers 70G to 70L. Thus, according to the configuration shown in Figure 14, with a simple configuration in which multiple distribution rollers 70A to 70F are simply arranged at different height positions, it is possible to prevent each yarn 100 sent from the second relaxation roller 62 from coming into contact with the roller surfaces of the other distribution rollers.

When the distribution rollers 70A to 70F are arranged along the X direction with their respective height positions changed as shown in FIG. 14, it is possible to set the acute angle β between the horizontal plane and the yarn running direction of the yarn 100 sent from the second relaxation roller 62 to each distribution roller 70A to 70F to 0 degrees or an angle smaller than 0.

Figure 15 is a schematic diagram showing an example of the positional relationship between the first relief roller 61, the second relief roller 62, and the distribution rollers 70A to 70F when the distribution rollers 70A to 70F are arranged at different height positions. Figure 15(A) is a schematic diagram showing the first arrangement pattern, Figure 15(B) is a schematic diagram showing the second arrangement pattern, and Figure 15(C) is a schematic diagram showing the third arrangement pattern.

In any of the first to third arrangement patterns shown in Figures 15(A) to 15(C), the yarn 100 from the second relief roller 62 to the contact point of the distribution roller 70F does not come into contact with the other distribution rollers 70A to 70E and the roller surfaces of the first relief roller 61. In any of the first to third arrangement patterns shown in Figures 15(A) to 15(C), it is possible to ensure a space in which the yarn 100 can run on the yarn path until the yarn 100 reaches the corresponding distribution roller. Therefore, it is possible to prevent the yarn 100 from the second relief roller 62 to the contact point of the distribution roller 70F from coming into contact with the other distribution rollers 70A to 70E and the roller surfaces of the first relief roller 61. In the first arrangement pattern shown in FIG. 15(A) and the third arrangement pattern shown in FIG. 15 (C), it is possible to set the acute angle β formed by the yarn running direction of the yarn 100 fed from the second relaxation roller 62 to each distribution roller 70A to 70F and the horizontal plane to an angle smaller than 0 degrees.

Figure 16 is a schematic diagram showing another example of the positional relationship between the first relief roller 61, the second relief roller 62, and the distribution rollers 70A to 70F when the distribution rollers 70A to 70F are arranged at different height positions. Figure 16 (A) is a schematic diagram showing the fourth arrangement pattern, and Figure 16 (B) is a schematic diagram showing the fifth arrangement pattern.

In the fourth arrangement pattern shown in FIG. 16(A), the yarn 100 from the second relief roller 62 to the contact point of the distribution roller 70F is in contact with the roller surfaces of the other distribution rollers 70A to 70E. In the fifth arrangement pattern shown in FIG. 16(B), the yarn 100 from the second relief roller 62 to the contact point of the distribution roller 70F is in contact with the roller surface of the first relief roller 61. Therefore, such fourth and fifth arrangement patterns cannot be adopted as the positional relationship between the first relief roller 61, the second relief roller 62, and the distribution rollers 70A to 70F.

1 Yarn take-up device 6 Yarn take-up section 8 Winding section 10 First guide section 20 First yarn feed roller 28 Stretching section 62 Second relaxation roller (second guide section)
70A to 70L Distribution roller (second guide portion)

Claims (9)

A spinning take-up device including a spinning take-up section that takes up and at least stretches a plurality of yarns spun from a spinning machine, and a winding section that winds up the plurality of yarns sent from the spinning take-up section to form a winding package,
The spinning take-up section is
a first guide section that guides the plurality of yarns spun from the spinning machine downstream in a yarn running direction;
a stretching unit including a plurality of rollers including at least one roller for stretching the plurality of yarns guided from the first guiding unit;
a second guide section that guides the plurality of yarns from the stretching section to the winding section,
The winding section and the extension section are arranged horizontally on the same floor so that the axial direction of the winding section is parallel to the running direction of the yarn in the extension section in a plan view ,
the second guide section includes a guide roller provided downstream of the drawing section in the yarn running direction, and a plurality of distribution rollers arranged downstream of the guide roller in the yarn running direction and having a drive section provided above the winding section, and the plurality of yarns from the drawing section are sent to the winding section via the guide roller and the plurality of distribution rollers. The yarn take-off device further includes a plurality of yarn suction units capable of suctioning each of the plurality of yarns spun from the spinning machine,
The first guide unit is installed below the yarn suction units and above the stretching unit, and includes a direction-changing roller for changing a running direction of the yarns, for each of the yarns;
a first yarn feeding roller is provided on a yarn path from the plurality of direction-changing rollers to the stretching section;
The yarn take-up device according to claim 1, characterized in that the first yarn feed roller is provided at a position lower than the yarn suction section and at a position horizontally offset from the winding section in an opposite direction relative to both the first guide section and the stretching section . The yarn take-up device according to claim 1 or 2 , characterized in that the plurality of distribution rollers are arranged so that an acute angle formed by the yarn running direction of the yarn sent from the guide roller and a horizontal plane is greater than or equal to 0 degrees and less than or equal to 20 degrees . The plurality of distribution rollers are arranged in series along a yarn path from the guide roller to each of the plurality of distribution rollers in a plan view,
A yarn path from the guide roller to each of the plurality of distribution rollers is formed so as to correspond to the plurality of distribution rollers, and a plurality of yarn paths are formed in a direction perpendicular to the yarn path in a plan view,
The yarn take-off device according to any one of claims 1 to 3, characterized in that each of the plurality of distribution rollers is arranged so as to avoid a yarn path corresponding to another distribution roller . The spinning take-up device according to any one of claims 1 to 4, characterized in that each of the plurality of distribution rollers has a roller surface height that differs depending on the position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction. The spinning take-off device according to any one of claims 1 to 5, characterized in that at least one of the plurality of distribution rollers has an axial direction inclined with respect to the horizontal direction . The spinning take-up device according to any one of claims 1 to 6, characterized in that at least one of the plurality of distribution rollers is a conical roller having a diameter that varies depending on a position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction, or a stepped roller having a diameter that varies in stages depending on a position in a direction perpendicular to both the yarn path from the guide roller to the distribution roller and the vertical direction. The spinning take-up device according to any one of claims 1 to 4, 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 distance from the guide roller increases . The device further includes a plurality of driving units corresponding to the plurality of distribution rollers, respectively.
The spinning take-off device according to any one of claims 1 to 8.

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