Spinning draw device

Abstract

Provided is a spinning draft device that includes a spinning draft section (6) that drafts a plurality of spun yarns (100) spun from a spinning machine to stretch them, a plurality of yarn suction sections (4, 4A-4L), and a winding section (8) that winds the plurality of spun yarns delivered from the spinning draft section to form a wound package. The spinning draft section includes a first guide section (10) that changes the traveling direction for each of the plurality of spun yarns, a stretching section (28, 28A) that includes a plurality of rollers for stretching the plurality of spun yarns, and a second guide section (70) that guides the plurality of spun yarns to the winding section. The winding section and the stretching section are horizontally arranged, the first guide section is arranged at a position higher than at least one of the rollers of the stretching section, and a first yarn delivery roller (20) is arranged in the yarn passage from the first guide section to the stretching section. The first yarn delivery roller is arranged at a position lower than the yarn suction section and is offset in the horizontal direction with respect to the first guide section and the stretching section.

Description

Technical Field

[0001] This invention relates to a spinning drawing device for drawing yarn spun from a spinning machine to form a winding package, and more particularly to a spinning drawing device for industrial material yarns with high fineness and requiring a long heating length. Background Technology

[0002] In a spinning traction device that draws the filaments spun from a spinning machine to form a take-up package, a filament-hanging operation is required at the start of production to hook the filaments spun from the spinning machine along the filament channel to the take-up section.

[0003] A typical spinning traction device, such as that disclosed in Patent Document 1 (especially Fig. 1), includes a processing assembly comprising multiple rollers, etc., positioned below the spinning machine, with a take-up section positioned below the processing assembly. When a yarn-coating operation is performed in such a spinning traction device, there are two types of operators: one who coats the yarn onto each roller (the interlayer operator), and another who coats the yarn onto the take-up section positioned below each roller.

[0004] Patent document: U.S. Patent Application Publication No. 2009 / 0049669

[0005] However, in recent years, there has been a demand for labor-saving equipment. However, when performing the yarn-hanging operation in the general spinning traction device described in Patent Document 1, at least two operators are required: one for hanging yarn onto the rollers, and another for hanging yarn onto the take-up section. Furthermore, when two operators are involved in yarn hanging, the yarn-hanging process requires a handover of the yarn-attracting suction guns during the yarn-hanging process at the rollers and take-up section, thus increasing the yarn-hanging operation time. Even assuming only one operator hangs yarn onto the rollers and take-up section, the yarn-hanging operation at the rollers is a high-altitude operation, requiring the lowering of the work platform, which not only lengthens the yarn-hanging time but also increases the burden on the operator. Therefore, reducing the height of the spinning traction device to achieve a lower height, shortening the yarn-hanging time, and saving labor has become an urgent issue. Summary of the Invention

[0006] The present invention was made in view of the above-mentioned problems, and its purpose is to reduce the height of the spinning traction device compared with the past, and to shorten the yarn hanging time and save manpower.

[0007] (1) The spinning traction device of the present invention comprises a spinning traction section for drawing and at least stretching multiple filaments spun from a spinning machine, multiple filament attracting sections capable of attracting the multiple filaments respectively, and a winding section for winding the multiple filaments fed from the spinning traction section to form a winding package. The spinning traction device is characterized in that...

[0008] The above-mentioned spinning drawing section includes:

[0009] The first guide section is positioned below the plurality of thread attracting sections and has a direction changing roller for changing the travel direction of each of the plurality of threads.

[0010] The stretching section includes a plurality of rollers, each including at least one roller for stretching the plurality of filaments guided from the first guide section; and

[0011] The second guide section guides the multiple filaments from the stretching section to the winding section.

[0012] The aforementioned take-up section and stretching section are arranged horizontally, and the aforementioned first guide section is positioned above at least one roller of the stretching section.

[0013] A first wire feeding roller is provided on the wire channel from the multiple aforementioned direction-changing rollers to the aforementioned stretching section.

[0014] The first thread conveying roller is positioned lower than the thread attraction section and is offset in the horizontal direction from the first guide section and the stretching section.

[0015] According to the spinning traction device described in (1) above, the take-up section and the stretching section are arranged horizontally, and the first yarn conveying roller is positioned lower than the yarn attraction section and offset horizontally from the first guide section and the stretching section. Therefore, the height of the first guide section, which is positioned above at least one roller of the stretching section, can be reduced, thereby suppressing the height of the spinning traction device and achieving a lower height. As a result, it is not necessary to separate the working area of ​​one layer vertically and assign operators to each working area as in the past; one operator can perform the yarn hanging operation, thus shortening the yarn hanging operation time and achieving labor saving.

[0016] (2) In the spinning traction device described in (1) above, the characteristic is that,

[0017] The first guide section is configured in a row with multiple direction-changing rollers for each of the multiple filaments, which are staggered in a direction orthogonal to the axial direction of the winding shaft of the winding section when viewed from above.

[0018] According to the spinning traction device described in (2) above, the multiple direction-changing rollers are arranged in a row in a direction orthogonal to the axial direction of the take-up shaft when viewed from above, thus preventing the multiple yarns fed from the multiple direction-changing rollers from interfering with or tangling with each other. Furthermore, it is unnecessary to provide a yarn guide to maintain yarn spacing in order to prevent yarn interference or tangling. In particular, in order to position the first guide section at a lower position, it is preferable to reduce the distance between the first guide section and the stretching section in the height direction. However, even if the distance between the first guide section and the stretching section is reduced in the height direction, it is still possible to prevent the multiple yarns from interfering with or tangling, and this is particularly effective.

[0019] (3) In the spinning traction device described in (2) above, the characteristic is that,

[0020] The first guide section is configured such that the multiple direction-changing rollers provided for each of the multiple filaments are arranged in a row at equal intervals in a direction orthogonal to the axial direction of the winding shaft of the winding section when viewed from above.

[0021] According to the spinning traction device described in (3) above, multiple direction-changing rollers are arranged in a row at equal intervals in a direction orthogonal to the axial direction of the take-up shaft when viewed from above. Therefore, it is easy to perform the yarn-hanging operation on the yarn guide (not shown) and the yarn-winding device (not shown), which are located downstream of the multiple direction-changing rollers in the yarn-tracing direction.

[0022] (4) In any of the spinning drawing devices described in (1) to (3) above, the characteristic is that,

[0023] The aforementioned direction-changing roller is a roller that changes the direction of travel of the yarn spun downwards from the aforementioned spinning machine to a direction further downwards than the horizontal direction.

[0024] According to the spinning traction device described in (4) above, the direction of travel of the spun yarn downwards from the spinning machine is changed downwards by the direction-changing roller. Therefore, compared with the conventional case where a yarn guide is provided, tension can be applied to the yarn with minimal load, even at the same bending angle. As a result, the height can be reduced even without using a yarn guide and instead using the direction-changing roller. Furthermore, by driving multiple direction-changing rollers independently, the tension difference between multiple yarns can be reduced.

[0025] (5) In any of the spinning drawing devices described in (1) to (4) above, the characteristic is that,

[0026] The aforementioned multiple rollers include rollers arranged in two columns in the horizontal direction.

[0027] According to the spinning traction device described in (5) above, the multiple rollers include rollers arranged in two rows in the horizontal direction, so the height of the multiple rollers can be suppressed and the height of the stretching section can be reduced.

[0028] (6) In any of the spinning drawing devices described in (1) to (5) above, the characteristic is that,

[0029] For the first wire conveying roller and the plurality of rollers mentioned above, each roller is configured such that the winding angle of the wire relative to each roller is less than 360 degrees, and the direction that is approximately orthogonal to the wire channel when viewed from above is the axial direction.

[0030] According to the spinning traction device described in (6) above, the first yarn conveying roller and the multiple rollers are such that not only is the yarn winding angle less than 360 degrees, but also that the direction approximately orthogonal to the yarn passage when viewed from above is the axial direction. Therefore, multiple yarns travel in a manner that remains parallel while traveling in a direction that is only the X direction when viewed from above, in the section from the first guide section at least to the stretching section. Thus, multiple yarns can travel in a manner that the yarn passage from the first guide section at least to the stretching section does not deviate in the axial direction of each roller.

[0031] (7) In any of the spinning drawing devices described in (1) to (6) above, the characteristic is that,

[0032] The aforementioned rollers have:

[0033] At least one preheating roller, the surface temperature of which is set to a first temperature, is provided with two or three rollers arranged in the vertical direction below the first guide section.

[0034] At least one stretching roller, the surface temperature of which is set to a second temperature higher than the first temperature, is provided with two or three rollers arranged vertically below the first guide portion; and

[0035] At least one heat-setting roller, the surface temperature of which is set to a third temperature that is higher than the second temperature, is provided in two or three locations below the first guide section along the vertical direction.

[0036] According to the spinning traction device described in (7) above, by arranging two or three preheating rollers, at least one stretching roller, and at least one heat-setting roller below the first guide section in the vertical direction, the height of the stretching section can be reduced. Furthermore, by making the stretching section low, the operation of hanging yarn onto the multiple rollers provided in the stretching section can be prevented from being a high-altitude operation.

[0037] (8) The spinning drawing device described in (7) above is characterized by further comprising:

[0038] One or more first insulation boxes, housing at least one of the above-mentioned preheating rollers;

[0039] One or more second insulation boxes, housing at least one of the aforementioned stretching rollers; and

[0040] One or more third insulation boxes, housing at least one of the aforementioned heat-setting rollers.

[0041] The outlet of the wire in the first insulation box adjacent to the second insulation box in one or more of the first insulation boxes is separated from the inlet of the wire in the second insulation box adjacent to the first insulation box in one or more of the second insulation boxes, and the outlet of the wire in the second insulation box and the inlet of the wire in the third insulation box are separated.

[0042] According to the spinning traction device described in (8) above, it includes multiple heat preservation boxes that respectively house the preheating roller, the stretching roller, and the heat setting roller. Furthermore, the yarn outlet opening of the Nth heat preservation box and the yarn inlet opening of the (N+1)th heat preservation box, which is located downstream of the Nth heat preservation box, are not connected and are separated. Therefore, thermal movement between the Nth and (N+1)th heat preservation boxes can be suppressed. In addition, temperature setting management can be easily performed for each heat preservation box. Furthermore, the number of the first, second, and third heat preservation boxes is not limited to one. For example, multiple preheating rollers can be separately housed in multiple first heat preservation boxes. Similarly, multiple stretching rollers can be separately housed in multiple second heat preservation boxes, and multiple heat setting rollers can be separately housed in multiple third heat preservation boxes.

[0043] (9) In the spinning traction device described in (7) or (8) above, the characteristic is that,

[0044] At least one of the aforementioned preheating roll, at least one stretching roll, and at least one heat-setting roll is unitized.

[0045] The unitized roller configuration described above includes a first unit with a predetermined number of rollers being unitized and a second unit with a different number of rollers being unitized, which can replace the first unit and the second unit depending on the application.

[0046] According to the spinning traction device described in (9) above, multiple units with different numbers of rollers are prepared in advance. The units are replaced according to the stretching process, the type of yarn, etc., and set in the spinning traction device, thereby making it easy to replace the rollers corresponding to the application.

[0047] (10) In any of the spinning drawing devices described in (1) to (9) above, the characteristic is that,

[0048] A guide roller that guides the yarn to the second guide section is disposed at a position downstream of the aforementioned stretching section in the yarn travel direction.

[0049] The second guide section is positioned directly above the take-up section such that the acute angle formed by the direction of the filament traveled from the guide roller and the horizontal plane is 0 degrees or more and within 20 degrees.

[0050] According to the spinning traction device described in (10) above, the height of the second guide can be suppressed, so that the operation of hanging the yarn to the second guide is not a high-altitude operation.

[0051] (11) In any of the spinning drawing devices described in (1) to (9) above, the characteristic is that,

[0052] A guide roller is positioned downstream of the aforementioned stretching section in the direction of yarn travel.

[0053] In the direction of yarn travel, a second yarn feeding roller that guides the yarn to the second guide is disposed between the second guide portion and the guide roller.

[0054] The second guide portion is positioned directly above the take-up portion such that the acute angle formed by the direction of the filament traveled from the second filament conveying roller and the horizontal plane is 0 degrees or more and within 20 degrees.

[0055] In the spinning traction device described in (11) above, a guide roller that guides the yarn to the second guide section is arranged downstream of the stretching section in the yarn travel direction, and a second yarn conveying roller is arranged between the second guide section and the guide roller in the yarn travel direction, which is different from the spinning traction device described in (9) above. Even in this case, by arranging the second guide section such that the acute angle formed by the yarn travel direction of the yarn fed from the second yarn conveying roller and the horizontal plane is 0 degrees or more and within 20 degrees, the height of the second guide section can be suppressed. As a result, the yarn hanging operation to the second guide section can be prevented from becoming a high-altitude operation.

[0056] (12) In any of the spinning drawing devices described in (1) to (11) above, the characteristic is that,

[0057] The aforementioned winding section includes two winding devices arranged in a direction approximately orthogonal to the aforementioned yarn channel when viewed from above.

[0058] The aforementioned spinning traction unit distributes and transports the multiple filaments relative to the aforementioned two winding devices.

[0059] At least the aforementioned yarn attraction section, the aforementioned first guide section, the aforementioned stretching section, the aforementioned second guide section, and the aforementioned first yarn conveying roller are all arranged within the width direction of the aforementioned winding section.

[0060] According to the spinning traction device described in (12) above, the yarn attraction part, the first guide part, the stretching part, the second guide part, the first yarn conveying roller and the second guide part are all arranged within the width direction of the winding part. Therefore, not only can the spinning traction device be made shorter, but its expansion in the width direction can also be suppressed, and the whole device can be made compact.

[0061] The effects of the invention

[0062] According to the present invention, compared with the past, the height of the spinning traction device can be reduced to achieve a lower height, which can shorten the yarn hanging time and save manpower. Attached Figure Description

[0063] Figure 1 This is an example of a perspective view showing the outline of a spinning traction device.

[0064] Figure 2 This is an example of a side view showing an outline of a spinning traction device.

[0065] Figure 3 This is an example of a side view showing the periphery of the first guide section.

[0066] Figure 4 yes Figure 3 An example of a view along the AA line is shown.

[0067] Figure 5 This is an example of a side view showing the periphery of the stretching section.

[0068] Figure 6 This is an example of a side view showing an outline of the method of conveying the filament from the preheating roll insulation box to the stretching roll insulation box.

[0069] Figure 7 This is an example of a side view showing the buffer section, the second guide section, and the area around the winding section.

[0070] Figure 8 This is an example of a top view showing the area around the second guide section.

[0071] Figure 9 This is an example of a schematic diagram showing the acute angle formed by the direction of the yarn travel from the second buffer roller to each distribution roller and the horizontal plane.

[0072] Figure 10 yes Figure 7 The BB line view shown is an example.

[0073] Figure 11 This is an example of a side view showing the outline of the spinning traction device of the first modified example.

[0074] Figure 12 This is an example of a side view showing the outline of the spinning traction device of the second modified example. (a) to (c) are examples of the replacement patterns of each roller.

[0075] Figure 13 This is an example of a side view showing the outline of the spinning traction device of the third variation.

[0076] Figure 14 This is an example of a side view showing the first guide portion and the periphery of the stretching portion in the fourth variation.

[0077] Explanation of symbols

[0078] 1: Spinning traction device; 4: Thread attraction section; 6: Spinning traction section; 8: Winding section; 10: First guide section; 20: First thread conveying roller; 28: Stretching section; 70: Second guide section. Detailed Implementation

[0079] Hereinafter, the spinning traction device 1 of the present invention will be described with reference to the accompanying drawings. The spinning traction device 1 of the present invention is, for example, a device for drawing industrial material yarns with a denier of 300 or higher. Figure 1 This is an example of a perspective view showing the outline of the spinning traction device 1. Figure 2 This is an example of a side view showing an outline of the spinning traction device 1.

[0080] In addition, in this embodiment, such as Figure 1 as well as Figure 2 The X and Y directions are defined as shown. Both the X and Y directions are horizontal and orthogonal to each other. The X direction is... Figure 1 as well as Figure 2 The direction indicated by the middle arrow. Therefore, in this specification, when referred to as "the direction opposite to the X direction," it means... Figure 1 as well as Figure 2 The opposite direction of the arrow shown. On the other hand, the Y direction is... Figure 1 as well as Figure 2 The two directions indicated by the middle arrow.

[0081] [1. Overall Structure of the Spinning Traction Device]

[0082] Reference Figure 1 as well as Figure 2 A general description of the overall structure of the spinning traction device 1 is provided. For example... Figure 1 as well as Figure 2As shown, the spinning traction device 1 mainly comprises an oil supply unit 2, a yarn attraction unit 4, a spinning traction unit 6, and a winding unit 8, starting from the upstream side of the yarn travel direction.

[0083] The oil supply unit 2 has multiple oil supply sections 2. These multiple oil supply sections 2 in Figure 2 The items are arranged in a column along the left-right direction on the paper. Here, the description is not written as "arranged in a column along the X direction" but rather as "in..." Figure 2 The reason for "arranging them in a row in the left-right direction on the paper" will be referred to Figure 4 Then it will be discussed.

[0084] In addition, although Figure 1 as well as Figure 2 Not shown in the figure, but a spinning machine is arranged above multiple oil supply units 2. The multiple oil supply units 2 apply oil to the bundles of yarn 100 spun from the spinning machine to form filaments. In this embodiment, the spinning traction device 1 includes oil supply units 2, but it is not limited to this, and the spinning machine may also include oil supply units 2.

[0085] The yarn attraction section 4 has multiple yarn attraction sections 4, generally referred to as a vacuum generator. When the spinning traction device 1 is equipped with an oil supply section 2, these multiple yarn attraction sections 4 are respectively positioned directly below the corresponding oil supply section 2, temporarily attracting and holding the yarn 100 when it is wound onto the rollers or when a yarn breaks. The yarn 100, coated with oil by the oil supply section 2, passes directly downwards in front of the yarn attraction section 4 and travels towards the first guide section 10 described later. Each of the multiple yarn attraction sections 4 is configured to generate an attraction force primarily through the flow of compressed fluid at the attraction port.

[0086] The spinning traction unit 6, starting from the upstream side in the direction of yarn travel, mainly comprises a first guide unit 10, a first yarn conveying roller 20, a stretching unit 28, a buffer unit 60, and a second guide unit 70. Details regarding the first guide unit 10, the first yarn conveying roller 20, the stretching unit 28, the buffer unit 60, and the second guide unit 70 will be described later.

[0087] The take-up unit 8 mainly includes a main frame 80, a first take-up device 81, and a second take-up device 91. The first take-up device 81 and the second take-up device 91 are arranged in the Y direction. The first take-up device 81 and the second take-up device 91 have the same structure, so the first take-up device 81 will be described below, and the description of the second take-up device 91 will be omitted. In this embodiment, the take-up unit 8 includes two take-up devices, the first take-up device 81 and the second take-up device 91, but it is not limited to this and may also include one take-up device.

[0088] The first winding device 81 mainly includes: a circular plate-shaped turntable 82 that is rotatably mounted on the main frame 80; two winding shafts 84 that are cantilevered on the turntable 82 and have the X direction as the axial direction; and multiple traversing devices 85 for traversing the yarn 100.

[0089] A plurality of bobbins 86 are mounted in a straight line on a take-up shaft 84. The take-up shaft 84 is rotated by a motor (not shown), which causes the plurality of bobbins 86 mounted on the take-up shaft 84 to rotate, and yarn 100 is wound onto the rotating plurality of bobbins 86. The yarn 100 wound onto the bobbins 86 forms a take-up package. The view of the take-up section 8 in the direction opposite to the X direction will be described later.

[0090] Here, continue to refer to Figure 1 as well as Figure 2 The positional relationship between the stretching section 28 and the winding section 8 of the spinning traction unit 6 will be explained. The stretching section 28 is positioned upstream of the winding section 8 in the yarn travel direction and in the opposite direction to the X direction. Specifically, the stretching section 28 and the winding section 8 are horizontally arranged on the same floor such that the axis of the winding shaft 84 is parallel to the travel direction of the yarn 100 in the stretching section 28 when viewed from above. That is, in this embodiment, unlike conventional spinning traction devices that separate the working area of ​​the first floor vertically, with the winding section arranged in the lower working area and the stretching section arranged in the upper working area, the stretching section 28 is arranged at approximately the same height as the winding section 8. In this way, the stretching section 28 can be configured to allow one operator to perform the yarn-hanging operation of the stretching section and the winding section without using a work trolley or the like. As a result, the yarn-hanging operation time can be shortened, and labor saving can be achieved.

[0091] Furthermore, a first guide section 10 is disposed near the upper part of the stretching section 28. Additionally, a yarn suction section 4 is disposed directly above the first guide section 10, and an oil supply section 2 is disposed directly above the yarn suction section 4. The effects of arranging these components in such a close proximity will be described later, including their positional relationship with the first yarn conveying roller 20.

[0092] [2. Spinning drawing section]

[0093] The first guide section 10, the first yarn conveying roller 20, the stretching section 28, the easing section 60, and the second guide section 70 of the spinning traction section 6 will be described below.

[0094] [2-1. First guide section, first wire conveying roller]

[0095] Figure 3 This is an example of a side view showing the periphery of the first guide section 10. For example... Figure 3As shown, the first guide section 10 is mainly composed of multiple (e.g., 12) direction-changing rollers 10A to 10L. The multiple direction-changing rollers 10A to 10L... Figure 3 The paper is arranged in a row in the left-right direction. Specifically, the direction-changing rollers 10A to 10F... Figure 3 The direction-changing rollers 10G to 10L are arranged from left to right on the paper surface. Figure 3 Arranged from right to left on the paper. Here, it is not written as "arranged in a column in the X direction" but as "in..." Figure 3 The reason for "arranging them in a row in the left-right direction on the paper" will be consistent with the record of "in Figure 2 The multiple oil supply units 2 arranged in a row in the left-right direction on the paper are referred to together. Figure 4 To be discussed later.

[0096] Furthermore, in this embodiment, it is explained that multiple direction-changing rollers 10A to 10L are used in... Figure 3 The main elements are arranged in a row in the left-right direction on the paper, but the multiple direction-changing rollers 10A to 10L can be arranged horizontally or staggered in the up-down direction.

[0097] The multiple direction-changing rollers 10A to 10L are rollers used to feed multiple (e.g., 12) filaments 100 spun downwards from the spinning machine and coated with an oil, each of which is fed toward a first filament feed roller 20 located slightly below the horizontal direction. Furthermore, "slightly below the horizontal direction" is preferably slightly below the horizontal direction. For example, it is preferable that the acute angle formed by the direction of the filaments 100 fed from the direction-changing rollers 10A to 10L toward the first filament feed roller 20 and the horizontal plane is greater than 5 degrees and less than 30 degrees. "The acute angle formed by the direction of the filaments 100 fed from the direction-changing rollers 10A to 10L toward the first filament feed roller 20 and the horizontal plane" is equivalent to... Figure 3 The angle α shown.

[0098] The yarn 100, whose direction of travel has been changed by the direction-changing rollers 10A to 10F, is conveyed to the first take-up device 81 (see reference). Figure 1 The yarn 100, whose direction of travel has been changed by the direction-changing rollers 10G to 10L, is then fed to the second take-up device 91 (see reference). Figure 1 (and was caught up in.)

[0099] The first thread conveying roller 20 is a roller disposed on the thread channel from the first guide section 10 to the stretching section 28, and its axial direction is approximately orthogonal to both the thread travel direction and the vertical direction (i.e., the Y direction). The first thread conveying roller 20 is disposed vertically between the first guide section 10 (i.e., the plurality of direction-changing rollers 10A to 10L) and the stretching section 28, and horizontally disposed on the side opposite to the X direction to both the first guide section 10 (more specifically, the direction-changing roller 10G) and the stretching section 28. That is, the first guide section 10 and the stretching section 28 are vertically arranged in a position where they overlap when viewed from above, while the first thread conveying roller 20 is disposed in a position where it does not overlap with either the first guide section 10 or the stretching section 28 when viewed from above, and is offset horizontally. However, from the viewpoint of saving space, the first thread conveying roller 20 is preferably located near the first guide section 10 and the stretching section 28 in the horizontal direction.

[0100] Thus, by arranging the first guide section 10 near the upper part of the stretching section 28, and by arranging the first yarn feed roller 20 at a position offset from both the first guide section 10 and the stretching section 28 towards the opposite direction to the X direction, the vertical distance between the first guide section 10 and the stretching section 28 can be reduced. Furthermore, by reducing the vertical distance between the first guide section 10 and the stretching section 28, the height 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 be suppressed, thereby reducing the overall height of the spinning traction device 1. As a result, it is no longer necessary to separate the single-layer working area vertically and assign operators to each working area as in the past; one operator can perform the yarn hanging operation, thus shortening the yarn hanging operation time and saving manpower.

[0101] The filament 100 fed from the first filament feed roller 20 travels toward the stretching section 28. The winding angle of the filament 100 toward the first filament feed roller 20 is less than 360 degrees.

[0102] Multiple yarns 100 spun downwards from the spinning machine not only contact the roller surfaces of the multiple direction-changing rollers 10A to 10L, but are also wound at a winding angle of, for example, 45 degrees or more and less than 90 degrees. In particular, by setting the first yarn feed roller 20 on the side opposite to the X direction to the direction-changing roller 10G and minimizing the angle α, the winding angle of the yarns to the direction-changing rollers 10A to 10L can be increased, and the clamping force between the yarns 100 and the direction-changing rollers 10A to 10L increases. Therefore, tension can be applied to the yarns 100 between the multiple direction-changing rollers 10A to 10L and the first yarn feed roller 20, and the travel of the yarns 100 downstream of the multiple direction-changing rollers 10A to 10L can be stabilized. Furthermore, the yarn guide for fine-tuning the yarn tension, as is the case with conventional yarn guides, can be positioned at a lower position than the spinning traction device equipped with a yarn guide. Furthermore, since the direction of travel of the yarn 100 is changed by the rollers, the burden on the yarn 100 can be greatly reduced. In addition, when the yarn separation position on the circumferential surface of the multiple direction-changing rollers 10A to 10L is lower in the vertical direction than the yarn entry position on the circumferential surface of the first yarn conveying roller 20, the winding angle that contacts the roller surface of each of the multiple direction-changing rollers 10A to 10L exceeds 90 degrees.

[0103] Each of the multiple direction-changing rollers 10A to 10L is equipped with a plurality of motors (not shown) corresponding to each roller. When the first thread feed roller 20 is positioned at a deviation from either the first guide section 10 or the tension section 28 on the side opposite to the X direction, the distance (i.e., thread length) from each of the direction-changing rollers 10A to 10L to the first thread feed roller 20 is different, and the tension of each of the multiple threads 100 may be different. Therefore, by enabling the multiple direction-changing rollers 10A to 10L to be driven independently, the thread feed speed is stabilized, and deviations in thread tension can be suppressed even when the thread lengths are different.

[0104] Next, refer to Figure 4 The positional relationships of the multiple oil supply units 2, the multiple wire attraction units 4, and the multiple direction changing rollers 10A to 10L are explained. Figure 4 This is an example of a top view showing multiple oil supply sections 2, multiple wire suction sections 4, and a first wire conveying roller 20.

[0105] like Figure 4 As shown, the oil supply unit 2 consists of multiple oil supply units 2A to 2L. Figure 4 In the paper plane, it is in the left-right direction and in the Y direction (i.e., with the take-up axis 84 (refer to) Figure 1 They are arranged in a row at equal intervals in both vertical and orthogonal directions. Furthermore, although in Figure 4Not shown in the diagram, but each of the oil supply sections 2A to 2L has a wire suction section 4A to 4L located directly below it (see reference). Figure 3 Additionally, similar to the direction-changing rollers 10A to 10L, the oil supply sections 2A to 2F are also located in... Figure 4 The paper is arranged from left to right, with the oil supply section ranging from 2G to 2L. Figure 4 Arranged from right to left on the paper.

[0106] In addition, although Figure 4 The first guide section 10 (multiple direction-changing rollers 10A-10L) is not shown, but each direction-changing roller 10A-10L is arranged directly below each of the yarn attraction sections 4A-4L. Therefore, the multiple direction-changing rollers 10A-10L are also arranged in a row at equal intervals in the Y direction. As a result, the multiple yarns 100 spun from the spinning machine travel parallel to each other in the Y direction when viewed from above, preventing the yarns from interfering with or tangling. In particular, in this embodiment, the vertical distance between the first guide section 10 and the stretching section 28 is reduced, but even in this case, the multiple yarns 100 can travel parallel, preventing them from interfering with or tangling. Furthermore, yarn feeding can be easily performed on the yarn guide (not shown) and winding device (not shown) arranged in the yarn channel between the multiple direction-changing rollers 10A-10L and the distribution rollers 70A-70L to maintain the yarn spacing. However, this is not a limitation. Between the multiple-direction changing rollers 10A to 10L and the distribution rollers 70A to 70L, it is not necessary to have a guide or winding device to maintain the yarn spacing.

[0107] Furthermore, regarding the arrangement of the multiple oil supply sections 2A to 2L and the multiple wire suction sections 4A to 4L, it is not described as "staggered in the X direction and in the Y direction" but rather as "in..." Figure 4 The reason for stating "offset in the left-right direction and in the Y direction" on paper is that the X direction implies a direction. That is, this is to avoid a mismatch between the statement "offset in the X direction" and "offset in the Y direction" if "offset in the X direction" is interpreted as arranged vertically in that single direction. (Refer to...) Figure 2 as well as Figure 3 The description does not state "arranged in a row in the X direction" but instead states "in Figure 2 Arranged in a row in the left-right direction on the paper" or "in Figure 3 The reason for stating that the items are arranged in a row in the left-right direction on the paper is based on the same principle. That is, it is to avoid the following situation: when it is written as "arranged in a row in the X direction", it is interpreted as not being separated in the Y direction.

[0108] In addition, there is no particular limitation on the number of multiple oil supply units 2, multiple wire suction units 4, multiple direction changing rollers 10A to 10L, multiple traverse devices 85, and multiple bobbins 86.

[0109] [2-2. Tensioning section]

[0110] Figure 5 This is an example of a side view showing the periphery of the stretching section 28. For example... Figure 5 As shown, the stretching section 28 mainly includes: a plurality of preheating rollers 31 to 34 for heating the yarn 100 before stretching; a plurality of stretching rollers 41 to 44 disposed downstream of the preheating rollers 31 to 34; and a plurality of heat setting rollers 51 to 56 disposed downstream of the stretching rollers 41 to 44 for conditioning the yarn 100 after stretching.

[0111] However, conventionally, heating length is ensured by winding the yarn multiple times on a long roller with a relatively large roller width. In the spinning traction device 1 of this embodiment, a short roller with a smaller roller width is used, and the winding of the yarn onto the roller is less than one turn. However, in order to ensure heating length while keeping the winding of the yarn onto the roller less than one turn, the number of rollers needs to be more than before. In particular, for example, in spinning traction devices for producing yarns for industrial materials with a denier of 300 or higher, a greater heating length is required compared to spinning traction devices for yarns for clothing. Therefore, in the spinning traction device 1 of this embodiment, by arranging the preheating rollers 31-34, the stretching rollers 41-44, and the heat-setting rollers 51-56 horizontally in a straight line in the X direction on the same floor, it is possible to ensure heating length while keeping the winding of the yarn onto the roller less than one turn (the winding angle of the yarn onto the roller is less than 360 degrees), and to reduce the height of the stretching section 28. In addition, the preheating rollers 31-34, the stretching rollers 41-44, and the heat setting rollers 51-56 are equivalent to the "multiple rollers" of the present invention.

[0112] The yarn feeding speed of at least the upstream stretching roller 41 among the stretching rollers 41 to 44 is greater than the yarn feeding speed of the downstream preheating roller 34 among the preheating rollers 31 to 34. Therefore, the yarn 100 is stretched between the downstream preheating roller 34 among the preheating rollers 31 to 34 and the upstream stretching roller 41 among the stretching rollers 41 to 44.

[0113] The preheating rollers 31-34, the stretching rollers 41-44, and the heat setting rollers 51-56 are equipped with multiple motors (not shown) corresponding to each roller, which can be driven independently.

[0114] The preheating rollers 31-34, stretching rollers 41-44, and heat-setting rollers 51-56 are all arranged horizontally along the X direction with two rollers approximately positioned close to each other in the vertical direction, with the axial direction being roughly orthogonal to the yarn path when viewed from above (i.e., the Y direction). However, the number of rollers arranged in the vertical direction is not limited to two; as long as one operator can perform the yarn-hanging operation, three rollers can also be arranged in the vertical direction.

[0115] The yarn 100 fed from the first yarn conveying roller 20 is first conveyed to the preheating roller 31, and then proceeds in the order of preheating rollers 32-34, stretching rollers 41-44, and heat setting rollers 51-56. In the preheating rollers 32-34, stretching rollers 41-44, and heat setting rollers 51-56, the yarn 100 travels in an S-shape from below the two rollers arranged close together in the vertical direction, and then travels towards the lower roller of the two rollers arranged on the downstream side.

[0116] Regarding the winding angle of each of the preheating rollers 31-34, stretching rollers 41-44, and heat setting rollers 51-56 in the 100 direction of the yarn, it is less than 360 degrees in any of the rollers.

[0117] The surface temperature of the preheating rollers 31-34 is set to a temperature above the glass transition point of the filament 100 (e.g., 90°C). The surface temperature of the stretching rollers 41-44 is set to a temperature higher than that of the preheating rollers 31-34 (e.g., 110°C). The surface temperature of the heat setting rollers 51-56 is set to a temperature higher than that of the stretching rollers 41-44 (e.g., 130°C).

[0118] The surface temperature of preheating rollers 31-34 (e.g., 90°C) corresponds to the "first temperature" of this invention. The surface temperature of stretching rollers 41-44 (e.g., 110°C) corresponds to the "second temperature" of this invention. The surface temperature of heat setting rollers 51-56 (e.g., 130°C) corresponds to the "third temperature" of this invention.

[0119] Furthermore, it is not necessary to set all preheating rollers 31-34 to the same surface temperature; each preheating roller 31-34 can be set to a different surface temperature. Similarly, it is not necessary to set all stretching rollers 41-44 to the same surface temperature; each stretching roller 41-44 can be set to a different surface temperature. Moreover, it is not necessary to set all heat setting rollers 51-56 to the same surface temperature; each heat setting roller 51-56 can be set to a different surface temperature.

[0120] Furthermore, in this embodiment, the surface temperature of all preheating rolls 31-34 is raised, but this is not a limitation. For example, the surface temperature of at least one of the preheating rolls 31-34 may be raised while the surface temperatures of the remaining rolls are not raised. The same applies to the stretching rolls 41-44 and the heat-setting rolls 51-56.

[0121] Furthermore, the stretching section 28 also includes a first insulation box 39, a second insulation box 49, and a third insulation box 59. The first insulation box 39, the second insulation box 49, and the third insulation box 59 are all formed of heat-insulating material. The preheating rollers 31-34 are housed in the first insulation box 39, the stretching rollers 41-44 are housed in the second insulation box 49, and the heat-setting rollers 51-56 are housed in the third insulation box 59. This suppresses heat loss from each roller. In this embodiment, the preheating rollers 31-34 are housed in the first insulation box 39, the stretching rollers 41-44 are housed in the second insulation box 49, and the heat-setting rollers 51-56 are housed in the third insulation box 59, but they may not be housed in separate insulation boxes. For example, the preheating rollers 31 to 34 can be separated and stored in multiple first insulation boxes 39, the stretching rollers 41 to 44 can be separated and stored in multiple second insulation boxes 49, and the heat setting rollers 51 to 56 can be separated and stored in multiple third insulation boxes 59.

[0122] In addition, since the preheating rollers 31-34, stretching rollers 41-44 and heat setting rollers 51-56 are housed in the respective heat preservation boxes 39, 49 and 59, they would not normally be shown in the accompanying drawings, but are shown in the figures referenced in this specification for convenience.

[0123] In this embodiment, there are 4, 4 and 6 preheating rollers, stretching rollers and heat setting rollers respectively, but the number of each roller is not limited to these and can be changed according to the application.

[0124] Next, refer to Figure 6 The method of conveying the filament 100 from any one of the first insulation box 39, the second insulation box 49, and the third insulation box 59 to the other insulation boxes downstream will be described. Figure 6 This is an example of a side view showing an outline of the manner in which the filament 100 is conveyed from the first insulation box 39 to the second insulation box 49. Additionally, in Figure 6 The diagram shows the cross-sections that can be observed when the first insulation box 39 and the second insulation box 49 are cut along the vertical direction.

[0125] like Figure 6As shown, an outlet opening 36 is formed on the first insulation box 39. An inlet opening 45 is formed on the second insulation box 49. The outlet opening 36 and the inlet opening 45 are separate and not connected. That is, the thread 100 leaving the first insulation box 39 through the outlet opening 36 is temporarily in contact with the external gas, and then enters the second insulation box 49 through the inlet opening 45. The outlet opening 36 corresponds to the "outlet of the thread in the first insulation box" of the present invention. Furthermore, the inlet opening 45 corresponds to the "inlet of the thread in the second insulation box" of the present invention.

[0126] Thus, by separating the outlet opening 36 of the first insulation box 39 from the inlet opening 45 of the second insulation box 49, which is located downstream of the first insulation box 39, thermal movement between the first insulation box 39 and the second insulation box 49 can be suppressed. Although not shown, the outlet opening of the second insulation box 49 and the inlet opening of the third insulation box 59 are also separated from each other by not communicating with each other. The outlet opening of the second insulation box 49 corresponds to the "exit of the thread of the second insulation box" in this invention. Furthermore, the inlet opening of the third insulation box 59 corresponds to the "inlet of the thread of the third insulation box" in this invention.

[0127] [2-3. Softening Section]

[0128] Figure 7 This is an example of a side view showing the periphery of the buffer section 60, the second guide section 70, and the winding section 8. For example... Figure 7 As shown, the easing section 60 is positioned directly above the heat-setting rollers 53-56.

[0129] The easing section 60 includes a first easing roller 61, a second easing roller 62 disposed downstream of the first easing roller 61 in the direction of yarn travel, and a fourth insulation box 69. Both the first easing roller 61 and the second easing roller 62 are rollers with their axial direction being approximately orthogonal to the direction of yarn travel in the yarn channel (i.e., the Y direction) when viewed from above.

[0130] The filament 100 fed from the downstream heat-setting roller 56 of heat-setting rollers 51-56 travels in the order of the first easing roller 61 and the second easing roller 62.

[0131] The first softening roller 61 and the second softening roller 62 are staggered in the vertical direction. Furthermore, the first softening roller 61 and the second softening roller 62 are staggered in the X direction, with the first softening roller 61 facing towards the X direction and the second softening roller 62 facing towards the opposite direction. This arrangement of the first softening roller 61 and the second softening roller 62 helps to control the height of the second softening roller 62, facilitating the wire-coating operation onto the second softening roller 62.

[0132] The winding angles of the yarn 100 toward the first easing roller 61 and the second easing roller 62 are both less than 360 degrees. The surface temperatures of the easing rollers 61 and 62 are set to a lower temperature than that of the heat-setting rollers 51-56 (e.g., 100°C) to promote the easing of internal strain in the yarn 100. However, it is not necessary to set the first easing roller 61 and the second easing roller 62 to the same surface temperature; different surface temperatures can be set for each easing roller 61 and 62. Furthermore, it is not necessary for both the first easing roller 61 and the second easing roller 62 to have their surface temperatures raised. For example, the surface temperature of at least one of the first easing roller 61 and the second easing roller 62 can be raised while the surface temperatures of the other rollers remain unchanged.

[0133] The fourth insulation box 69 is formed of heat-insulating material. Two cooling rollers 61 and 62 are housed in the fourth insulation box 69 to suppress heat loss. Although not shown, the outlet opening of the third insulation box 59 and the inlet opening of the fourth insulation box 69 are not connected and are separated from each other. As a result, thermal movement between the third insulation box 59 and the fourth insulation box 69 can be suppressed.

[0134] The yarn 100 fed from the second softening roller 62, which is positioned downstream of the yarn travel direction in the softening section 60, is guided toward the second guide section 70 after leaving the fourth insulation box 69. The second softening roller 62 corresponds to the "guide roller" of the present invention.

[0135] [2-4. Second guiding section]

[0136] Reference Figure 7 as well as Figure 8 The second guide section 70 will be explained. Figure 8 This is an example of a top view showing the area around the second guide section 70.

[0137] The second guide section 70 mainly consists of multiple (e.g., 6) distribution rollers 70A to 70F for the first take-up device and multiple (e.g., 6) distribution rollers 70G to 70L for the second take-up device (see reference). Figure 8 The system is configured such that multiple filaments 100 fed from the second buffer roller 62 are divided into two directions for transport: one towards the first take-up device distribution rollers 70A-70F, and the other towards the second take-up device distribution rollers 70G-70L. The first take-up device distribution rollers 70A-70F are rollers designed to change the travel direction of each of the multiple filaments 100 fed from the second buffer roller 62 downwards, so that they are aligned with the direction of travel of each filament 100 mounted on the first take-up device 81 (see reference 81). Figure 1The bobbin 86 of the take-up shaft 84. The distribution rollers 70G to 70L for the second take-up device are rollers that change the travel direction of the multiple filaments 100 fed from the second ease roller 62 downwards for each of the multiple filaments 100, so that they are aligned with the direction of travel of the multiple filaments 100 mounted on the second take-up device 91 (see reference). Figure 1 The winding shaft 84 of the bobbin 86.

[0138] The distribution rollers 70A to 70F for the first take-up device are positioned directly above the first take-up device 81. Specifically, the distribution rollers 70A to 70F for the first take-up device are respectively connected to multiple traverse devices 85 (see reference). Figure 7 ) and multiple tubes 86 (refer to) Figure 7 Correspondingly, the traverse devices 85 are arranged in a straight line along the X direction directly above the corresponding traverse device 85. Furthermore, the traverse devices 85 are arranged in a straight line along the X direction directly above the corresponding tube 86.

[0139] The acute angle formed by the direction of the yarn travel of the yarn 100 fed from the second buffer roller 62 toward the distribution rollers 70A-70F of each first take-up device and the horizontal plane is preferably 0 degrees or more and within 20 degrees. This helps to suppress the height of the buffer section 60 and the second guide section 70. However, this is not mandatory; the acute angle formed by the direction of the yarn travel of the yarn 100 fed from the second buffer roller 62 toward the distribution rollers 70A-70F of each first take-up device and the horizontal plane can, for example, be a negative angle, as long as it slightly exceeds 20 degrees within the range that can suppress the height of the second buffer roller 62. "The acute angle formed by the direction of the yarn travel of the yarn 100 fed from the second buffer roller 62 toward the distribution rollers 70A-70F of each first take-up device and the horizontal plane" is equivalent to... Figure 9 The angle β is shown. Additionally... Figure 9 This is an example of a schematic diagram showing the acute angle β formed by the direction of travel of the yarn 100, conveyed from the second buffer roller 62 towards the first take-up device by the distribution roller 70A, and the horizontal plane. Figure 9 As an example, the diagram shows the first take-up device distribution roller 70A, one of a plurality of first take-up device distribution rollers 70A to 70F. In this embodiment, the second softening roller 62 is configured such that the acute angle β formed by the direction of the yarn 100 fed from the second softening roller 62 toward the first take-up device distribution roller 70A and the horizontal plane is, for example, greater than 0 degrees and less than 20 degrees.

[0140] The first take-up device uses distribution rollers 70A to 70F to traverse the yarn 100, whose travel direction has been changed downward, through the corresponding traversing device 85, and then wind it into the corresponding bobbin 86 to form a take-up package.

[0141] Similarly, the second take-up device uses distribution rollers 70G to 70L (refer to...). Figure 8 The distribution rollers 70G to 70L of the second take-up device are positioned directly above the second take-up device 91. The distribution rollers 70G to 70L of the second take-up device change the travel direction of each of the multiple filaments 100 fed from the second ease roller 62 downwards, so that each filament 100 is aligned with its corresponding bobbin (not shown). The distribution rollers 70G to 70L of the second take-up device then traverse the filaments 100, whose travel direction has been changed downwards, via corresponding traversing devices (not shown), and wind them into the corresponding bobbin to form a take-up package.

[0142] [3. Winding section]

[0143] Reference Figure 10 The configuration of the winding section 8 when viewed from the opposite direction to the X direction (front view) will be described. Figure 10 yes Figure 7 The BB line view shown is an example.

[0144] As described above, the take-up unit 8 includes a first take-up device 81 and a second take-up device 91, which are arranged in the Y direction. Furthermore, two take-up shafts 84 of the first take-up device 81 are provided. Similarly, two take-up shafts 84 of the second take-up device 91 are provided. Moreover, the second buffer roller 6 is configured such that its position in the Y direction is offset from the centerline CL of the take-up unit 8 towards the first take-up device 81. This allows the angle at which the yarn 100 enters relative to the bobbin 86 mounted on the take-up shaft 84 of the first take-up device 81 and the angle at which the yarn 100 enters relative to the bobbin 86 mounted on the take-up shaft 84 of the second take-up device 91 are approximately the same.

[0145] In this embodiment, the Y-direction length of the main frame 80 is approximately 1000 mm. Furthermore, the oil supply section 2, the yarn suction section 4, the first guide section 10, the first yarn transport roller 20, the stretching section 28, the buffer section 60, and the second guide section 70 are all configured to be within the width direction of the winding section 8, more specifically, within approximately half (e.g., approximately 500 mm) of the width direction length of the main frame 80 (e.g., approximately 1000 mm). This allows for compactness in the width direction of the winding section 8 while ensuring sufficient working area for the operator. Additionally, the width direction of the winding section 8 corresponds to the direction orthogonal to both the axial and vertical directions of the winding shaft 84 (i.e., the Y-direction).

[0146] [4. Effects]

[0147] According to the above description of the spinning traction device 1 of this embodiment, the stretching section 28 and the winding section 8 are arranged horizontally on the same floor, with the axial direction of the winding shaft 84 parallel to the travel direction of the yarn 100 in the stretching section 28 when viewed from above. Therefore, the height of the first guide section 10, which is located above at least one roller of the stretching section 28, can be reduced, and the spinning traction device 1 can be made shorter. As a result, it is not necessary to separate the working area of ​​one floor vertically and to arrange operators in each working area separately as in the past; the yarn hanging operation can be performed by one operator, thus shortening the yarn hanging operation time and saving manpower.

[0148] Furthermore, by arranging two or three preheating rollers 31-34, stretching rollers 41-44, and heat-setting rollers 51-56 along the X direction in both vertical and horizontal directions, and by arranging these rollers in a straight line when viewed from above, the height of the stretching section 28 can be reduced. In particular, for example, in spinning and drawing devices for industrial materials with a denier of 300 or higher, a longer heating length is required compared to spinning and drawing devices for clothing materials. Moreover, although increasing the number of rollers in the stretching section by making the winding angle of the yarn 100 to each roller less than 360 degrees, the height of the spinning and drawing device 1 can still be reduced even in this case.

[0149] Furthermore, a first guide section 10 is positioned directly above the stretching section 28, and a first yarn feed roller 20 is positioned at an offset position relative to both the first guide section 10 and the stretching section 28, on the side opposite to the X direction. Therefore, the vertical distance between the first guide section 10 and the stretching section 28 can be reduced, the height of the first guide section 10 and the stretching section 28 can be suppressed, and the height of the spinning traction device 1 can be reduced.

[0150] Furthermore, the tension applied to the multiple filaments 100 spun downwards from the spinning machine by the multiple directional rollers 10A to 10L stabilizes the movement of the filaments 100. Consequently, the need for a guide to fine-tune the tension of the filaments, as is the case with conventional designs, allows the oil supply section 2 and the filament suction section 4 to be positioned at a lower level, thereby reducing the height of the spinning traction device 1. Moreover, by changing the direction of travel of the filaments 100 using rollers, the burden on the filaments 100 is significantly reduced.

[0151] Furthermore, the multiple direction-changing rollers 10A to 10L are staggered in the Y direction. Therefore, while reducing the vertical distance between the first guide portion 10 and the stretching portion 28 and suppressing the height of the first guide portion 10, it is possible to prevent the multiple threads 100 from interfering with or tangling with each other.

[0152] Furthermore, the multiple direction-changing rollers 10A to 10L are equipped with multiple motors (not shown) corresponding to each roller, which can be driven independently. Therefore, even if the distances from each direction-changing roller 10A to 10L to the first yarn feed roller 20 are different, the tension difference of the multiple yarns 100 can be reduced.

[0153] Furthermore, in the spinning traction device 1 according to this embodiment, the winding angle of the yarn 100 in the first yarn conveying roller 20, preheating rollers 31-34, stretching rollers 41-44, heat setting rollers 51-56, and softening rollers 61 and 62 is less than 360 degrees. Moreover, the axial direction of each roller is approximately orthogonal to the yarn travel direction of the yarn 100 when viewed from above (i.e., the Y direction). Therefore, multiple yarns 100 can travel in the section from the first guide section 10 to the second softening roller 62 while maintaining parallelism, with their travel direction in the X direction or the opposite direction when viewed from above. Thus, multiple yarns 100 can travel in a manner where the yarn passage from the first guide section 10 to the second softening roller 62 does not deviate in the axial direction (i.e., the Y direction) of each roller.

[0154] Furthermore, according to the spinning traction device 1 of this embodiment, the outlet opening of the Nth insulation box is separated from the inlet opening of the (N+1)th insulation box, which is located downstream of the Nth insulation box. This suppresses thermal movement between the Nth and (N+1)th insulation boxes. Additionally, N is a natural number with (number of insulation boxes - 1) as the upper limit.

[0155] Furthermore, the spinning traction device 1 of this embodiment can be made compact in the width direction of the take-up section 8 in addition to being low in height, thus achieving space saving and improved work efficiency of the spinning traction device 1 as a whole.

[0156] [5. Variations]

[0157] Next, various modifications to the spinning traction device 1 of this embodiment will be described. However, when describing the modifications, parts having the same structure as those in the above embodiment will be marked with the same symbols and their descriptions will be omitted as appropriate.

[0158] [5-1. First Variation]

[0159] In the above embodiments, for example Figure 2 As shown, a plurality of oil supply sections 2, a plurality of wire attraction sections 4, and a first guide section 10 are arranged directly above the stretching section 28, but the arrangement is not limited to this. For example, Figure 11The spinning traction device 1A shown is such that the plurality of oil supply parts 2, the plurality of yarn attraction parts 4 and the first guide part 10 are not positioned directly above the stretching part 28, but are positioned at a position that is offset from any of the stretching part 28 and the first yarn conveying roller 20 in the opposite direction to the X direction.

[0160] Compared to the spinning traction device 1 described in the above embodiment, the first modified spinning traction device 1A has a longer length in the X direction, but the height of the stretching section 28 can be reduced. Furthermore, the yarn 100 can be made to travel in one direction, thus reducing the load on the yarn winding operation.

[0161] [5-2. Second Variation]

[0162] In the above embodiments, for example Figure 5 As shown, preheating rollers 31-34 are housed in the first insulation box 39, stretching rollers 41-44 are housed in the second insulation box 49, and heat setting rollers 51-56 are housed in the third insulation box 59.

[0163] However, depending on the stretching process and the type of yarn, it is sometimes necessary to change the number of all or some of the preheating rollers, stretching rollers, heat setting rollers, and tempering rollers.

[0164] As an example of changing the number of all or some of the preheating rollers, stretching rollers, heat setting rollers, and tempering rollers due to changes in the type of yarn, there are cases where the total number of rollers is not changed and cases where the total number of rollers is changed.

[0165] While maintaining the same installation spacing for all rollers without changing the total number of rollers, the number of rollers in each roller group (preheating roller, stretching roller, heat-setting roller, and cooling roller) can be changed by altering the insulation box while keeping the rollers constant. For example, this is equivalent to changing the insulation box from 4 preheating rollers, 4 stretching rollers, 6 heat-setting rollers, and 2 cooling rollers to 2 preheating rollers, 4 stretching rollers, and 8 heat-setting rollers. In this case, the insulation box for the preheating rollers is changed from one for 4 rollers to one for 2 rollers, and the insulation box for the heat-setting rollers is changed from one for 6 rollers to one for 8 rollers. Although the insulation box for the stretching rollers remains for 4 rollers, the rollers themselves are changed. Thus, without changing the total number of rollers, rollers appropriate for the application can be easily replaced simply by changing the insulation box.

[0166] By changing the total number of rollers, for example, by unitizing the rollers, insulation boxes, and motors used to drive the rollers, and configuring the unitized units to be able to be mounted on the main frame 90, it is possible to change the number of all or some of the rollers, including the preheating roller, stretching roller, heat-setting roller, and tempering roller. See below for reference. Figure 12 A specific example is given when the total number of rollers is changed. Figure 12 This is an example of a side view showing the outline of the spinning traction device of the second modified example. (a) to (c) are figures showing an example of the replacement mode of each roller.

[0167] exist Figure 12 In the example shown, the rollers, insulation box, and motor for driving the rollers are modularized into a unit that allows the main frame 90 to be mounted, thereby enabling arbitrary variation of the number of various rollers within the area of ​​the stretching section 28. In particular, since the stretching section 28 and the winding section 8 are horizontally arranged on the same floor, roller replacement is easily possible. Figure 12 In the example shown, disassembly involves a unit comprising, for example, four rollers, and installation involves a unit comprising, for example, two rollers. The following describes an example of a unit.

[0168] exist Figure 12 The spinning traction device 1B shown in (a) has a preheating roller unit 30, a stretching roller unit 40, and a heat-setting roller unit 50 mounted on its main frame 90. Additionally, Figure 12 The number of preheating rollers, stretching rollers and heat setting rollers shown in (a) is the same as that of the spinning traction device 1 described in the above embodiment.

[0169] The preheating roller unit 30 is formed by modularizing four preheating rollers 31 to 34, a first insulation box 39 capable of housing the four preheating rollers 31 to 34, and four motors (not shown) connected to the four preheating rollers 31 to 34 respectively.

[0170] The stretching roller unit 40 is formed by modularizing four stretching rollers 41 to 44, a second insulation box 49 capable of housing the four stretching rollers 41 to 44, and four motors (not shown) connected to the four stretching rollers 41 to 44 respectively.

[0171] The heat setting roller unit 50 is formed by modularizing six heat setting rollers 51 to 56, a third heat preservation box 59 capable of housing the six heat setting rollers 51 to 56, and six motors (not shown) connected to the six heat setting rollers 51 to 56 respectively.

[0172] exist Figure 12 The spinning traction device 1B shown in (b) has a preheating roller unit 30A, a stretching roller unit 40 and a heat setting roller unit 50A mounted on its main frame 90.

[0173] The preheating roller unit 30A is formed by modularizing two preheating rollers 31 and 32, a first insulation box 39A that can accommodate the two preheating rollers 31 and 32, and two motors (not shown) connected to the two preheating rollers 31 and 32 respectively.

[0174] The stretching roller unit 40 is as described above.

[0175] The heat setting roller unit 50A is formed by modularizing four heat setting rollers 51 to 54, a third heat preservation box 59A capable of housing the four heat setting rollers 51 to 54, and four motors (not shown) connected to the four heat setting rollers 51 to 54 respectively.

[0176] exist Figure 12 The spinning traction device 1B shown in (c) has a preheating roller unit 30A, a stretching roller unit 40A and a heat setting roller unit 50B mounted on its main frame 90.

[0177] The preheating roller unit 30A is as described above.

[0178] The stretching roller unit 40A is formed by modularizing two stretching rollers 41 and 42, a second insulation box 49A capable of housing the two stretching rollers 41 and 42, and two motors (not shown) connected to the two stretching rollers 41 and 42 respectively.

[0179] The heat setting roller unit 50B is formed by modularizing eight heat setting rollers 51 to 58, a third heat preservation box 59B capable of housing the eight heat setting rollers 51 to 58, and eight motors (not shown) connected to the eight heat setting rollers 51 to 58 respectively.

[0180] Thus, even when the total number of rollers changes, by pre-preparing multiple units with different numbers of rollers that can be installed on the main frame 90, and by setting up the main frame 90 to replace units according to the stretching process, yarn type, etc., it is easy to replace rollers according to the application. In particular, in spinning traction devices where the stretching section is arranged on the upper layer as in the past, it is difficult to replace each roller. However, in spinning traction devices where the stretching section 28 is arranged horizontally on the same floor as the winding section 8, by pre-preparing units that can be arbitrarily installed on the main frame 90 in areas where the stretching section 28 can be used, roller replacement operations can be performed more easily.

[0181] When replacing the preheating roller unit 30, stretching roller unit 40, or heat-setting roller unit 50 with other units, the motor connection wiring is disassembled and installed to replace the other units. If the number of rollers in the replaced unit is less than the number of rollers in the original unit, motor wiring remains. Therefore, it is also possible to have empty slots corresponding to the reduced number of rollers, and adjust the wiring around them by connecting wiring to these slots.

[0182] The unitization of the easing roller is not described in the second variation, but similar to the preheating roller, stretching roller and heat setting roller, multiple units of the easing roller with different numbers can be prepared in advance to be installed on the main frame 90.

[0183] Furthermore, when the target roller is replaced by a preheating roller, the preheating roller unit 30 corresponds to the "first unit" of the present invention, and the preheating roller unit 30A corresponds to the "second unit" of the present invention. Similarly, when the target roller is replaced by a stretching roller, the stretching roller unit 40 corresponds to the "first unit" of the present invention, and the stretching roller unit 40A corresponds to the "second unit" of the present invention. Likewise, when the target roller is replaced by a heat-setting roller, the heat-setting roller unit 50 corresponds to the "first unit" of the present invention, and either the heat-setting roller unit 50A or the heat-setting roller unit 50B corresponds to the "second unit" of the present invention.

[0184] [5-3. Third variation]

[0185] In the above embodiments, for example Figure 2 As shown, preheating rollers 31-34, stretching rollers 41-44, and heat-setting rollers 51-56 are arranged along the X direction on the same floor. Furthermore, for example... Figure 7 As shown, the easing section 60 is positioned directly above the heat-setting rollers 53-56. However, the positional relationship between the preheating rollers 31-34, the stretching rollers 41-44, the heat-setting rollers 51-56, and the easing rollers 61 and 62 is not limited to the above; for example, it could also be... Figure 13 The positional relationship is shown.

[0186] Figure 13 This is an example of a side view showing a general outline of the spinning drawing device C in the third variation. Figure 13 In the spinning traction device 1C shown, the stretching section 28 and the easing section 60 are arranged horizontally. More specifically, the first easing roller 61 and the second easing roller 62 are arranged along the X direction in the same layer as the heat-setting rollers 51-56. That is, the easing section 60 does not necessarily need to be arranged above the heat-setting rollers 51-56. However, in this case, it is preferable to arrange the second yarn transport rollers 94 and 95 between the second easing roller 62, the most downstream roller in the easing section 60, and the second guide section 70, in the direction of yarn 100 travel, i.e., above the easing section 60. In this case, the second yarn transport roller 95 corresponds to the "second yarn transport roller" of the present invention. In addition, as described above, the second easing roller 62 corresponds to the "guide roller" of the present invention. Thus, the yarn 100 can be smoothly transported from the second yarn transport roller 95, the most downstream roller in the second yarn transport rollers 94 and 95, toward the second guide section 70. Furthermore, the number of the second wire conveying rollers is not limited to two. It can be one or three. The number of the second wire conveying rollers can be appropriately selected based on the contact angle and contact area of ​​the wires wound on the circumference of the second softening roller 62 and the respective rollers of the second wire conveying rollers.

[0187] In this third variation of the spinning traction device 1C, the second guide section 70 is preferably positioned directly above the take-up section 8, such that the acute angle formed by the direction of the yarn 100 being conveyed from the second ease roller 62 toward each distribution roller 70A to 70L and the horizontal plane is 0 degrees or more and within 20 degrees.

[0188] [5-4. Fourth variation]

[0189] In the above embodiments, for example Figure 2 As shown, a first guide portion 10 is disposed near the upper part of the stretching portion 28, a thread attracting portion 4 is disposed directly above the first guide portion 10, and an oil supply portion 2 is disposed directly above the thread attracting portion 4. Furthermore, the stretching portion 28 and the winding portion 8 (see reference...) Figure 1 The preheating rollers 31-34, stretching rollers 41-44, and heat-setting rollers 51-56 are arranged horizontally in a straight line along the X direction on the same floor. Furthermore, two or three of each of the preheating rollers 31-34, stretching rollers 41-44, and heat-setting rollers 51-56 are arranged close together in the vertical direction. However, the positional relationship between the oil supply section 2, the yarn attraction section 4, the first guide section 10, the stretching section 28, and the winding section 8 is not limited to the above, and may include a buffer section 60, for example... Figure 14 The positional relationship is shown.

[0190] Figure 14 This is an example of a side view showing the periphery of the first guide portion 10 and the stretching portion 28A in the fourth modification. Figure 14 The winding portion 8 is not shown in the figure, but in the fourth variation, the stretching portion 28A is provided at the junction with the winding portion 8 (see reference 8). Figure 1 At least one lower roller arranged horizontally in a straight line along the X direction on the same floor as the oil supply section 2 and the yarn attraction section 4, and at least one upper roller arranged at the same height as the oil supply section 2 and the yarn attraction section 4. That is, for example, it is also possible not to have... Figure 2 The multiple rollers 31-34, 41-44, 51-56 (see reference) included in the stretching section 28 Figure 5All rollers in the stretching section 28A are arranged horizontally with the winding section 8, while some of the rollers 31-34, 41-44, and 51-56 of the stretching section 28A are arranged horizontally with the winding section 8, and the other rollers are arranged at the same height as the oil supply section 2 and the yarn attraction section 4. Furthermore, the first guide section 10 is arranged near the upper part of at least one or more lower rollers in the stretching section 28A. In addition, the yarn attraction section 4 is arranged directly above the first guide section 10, and the oil supply section 2 is arranged directly above the yarn attraction section 4. Furthermore, the first yarn transport roller 20 is arranged at a position offset from either the first guide section 10 or the stretching section 28A, on the side opposite to the X direction. Thus, even if the oil supply section 2, the spinning attraction section 4, the first guide section 10, the first yarn transport roller 20, and the rollers 31-34, 41-44, and 51-56 of the stretching section 28A (see reference 4) are all arranged horizontally with the winding section 8, the stretching section 28A is arranged horizontally with the winding section 8, while the other rollers are arranged at the same height as the oil supply section 2 and the yarn attraction section 4. Figure 5 The positional relationship between them is, for example... Figure 14 The positional relationship shown can also suppress the height of the spinning traction device to achieve a lower height.

[0191] In addition, Figure 14 The diagram shows, for example, 15 lower rollers and, for example, 9 upper rollers, but the number of rollers is not limited to this. Furthermore, the stretching section 28A includes at least one preheating roller, at least one stretching roller, and at least one heat-setting roller, but the number of each of these rollers can be appropriately determined based on the stretching process, the type of yarn, etc. Additionally, at least one of the preheating roller, stretching roller, and heat-setting roller can be designated as an upper roller, or only any one of these rollers can be designated as an upper roller.

[0192] In addition, for example, in Figure 11 In the case of the spinning traction device 1A shown, the area directly above the stretching section 28, and between the oil supply section 2, the yarn attraction section 4, and the first guide section 10 and the buffer section 60, becomes an empty area. Therefore, in Figure 11 In the case of the spinning traction device 1A shown, some of the multiple rollers 31-34, 41-44, and 51-56 of the stretching section 28A can be arranged horizontally with the winding section 8, and for the other rollers, some of the multiple rollers of the stretching section 28 can be arranged in the above-mentioned empty area.

Claims

1. A spinning traction device comprising a spinning traction section for drawing and at least stretching multiple filaments spun from a spinning machine, multiple filament attracting sections capable of attracting the multiple filaments respectively, and a winding section for winding the multiple filaments fed from the spinning traction section to form a winding package, characterized in that, The above-mentioned spinning drawing section includes: The first guide section is positioned below the plurality of thread attracting sections and has a direction changing roller for changing the travel direction of each of the plurality of threads. The stretching section includes a plurality of rollers, each including at least one roller for stretching the plurality of filaments guided from the first guide section; and The second guide section guides the multiple filaments from the stretching section to the winding section. The aforementioned take-up section and the aforementioned stretching section are horizontally arranged on the same floor, such that the axial direction of the take-up section is parallel to the direction of travel of the yarn in the stretching section when viewed from above, and the aforementioned first guide section is arranged above at least one roller of the stretching section. A first wire feeding roller is provided on the wire channel from the multiple aforementioned direction-changing rollers to the aforementioned stretching section. The first thread conveying roller is positioned lower than the thread attraction section and is offset in the horizontal direction from the first guide section and the stretching section.

2. The spinning traction device according to claim 1, characterized in that, The first guide section is configured in a row with multiple direction-changing rollers for each of the multiple filaments, which are staggered in a direction orthogonal to the axial direction of the winding shaft of the winding section when viewed from above.

3. The spinning traction device according to claim 2, characterized in that, The first guide section is configured such that the multiple direction-changing rollers provided for each of the multiple filaments are arranged in a row at equal intervals in a direction orthogonal to the axial direction of the winding shaft of the winding section when viewed from above.

4. The spinning traction device according to claim 1, characterized in that, The aforementioned direction-changing roller is a roller that changes the direction of travel of the yarn spun downwards from the aforementioned spinning machine to a direction further downwards than the horizontal direction.

5. The spinning traction device according to claim 2, characterized in that, The aforementioned direction-changing roller is a roller that changes the direction of travel of the yarn spun downwards from the aforementioned spinning machine to a direction further downwards than the horizontal direction.

6. The spinning traction device according to claim 3, characterized in that, The aforementioned direction-changing roller is a roller that changes the direction of travel of the yarn spun downwards from the aforementioned spinning machine to a direction further downwards than the horizontal direction.

7. The spinning traction device according to any one of claims 1 to 6, characterized in that, The aforementioned multiple rollers include rollers arranged in two columns in the horizontal direction.

8. The spinning traction device according to any one of claims 1 to 6, characterized in that, For the first wire conveying roller and the plurality of rollers mentioned above, each roller is configured such that the winding angle of the wire relative to each roller is less than 360 degrees, and the direction that is approximately orthogonal to the wire channel when viewed from above is the axial direction.

9. The spinning traction device according to any one of claims 1 to 6, characterized in that, The aforementioned rollers have: At least one preheating roller, the surface temperature of which is set to a first temperature, is provided with two or three rollers arranged in the vertical direction below the first guide section. At least one stretching roller, the surface temperature of which is set to a second temperature higher than the first temperature, is provided with two or three rollers arranged vertically below the first guide portion; and At least one heat-setting roller, the surface temperature of which is set to a third temperature that is higher than the second temperature, is provided in two or three locations below the first guide section along the vertical direction.

10. The spinning traction device according to claim 9, characterized in that, It also has: One or more first insulation boxes, housing at least one of the above-mentioned preheating rollers; One or more second insulation boxes, housing at least one of the aforementioned stretching rollers; and One or more third insulation boxes, housing at least one of the aforementioned heat-setting rollers. The outlet of the wire in the first insulation box adjacent to the second insulation box in one or more of the first insulation boxes is separated from the inlet of the wire in the second insulation box adjacent to the first insulation box in one or more of the second insulation boxes, and the outlet of the wire in the second insulation box is separated from the inlet of the wire in the third insulation box.

11. The spinning traction device according to claim 9, characterized in that, At least one of the aforementioned preheating roll, at least one stretching roll, and at least one heat-setting roll is unitized. The unitized roller configuration described above includes a first unit with a specified number of rollers being unitized, and a second unit with a different number of rollers being unitized, which can replace the first unit and the second unit depending on the application.

12. The spinning traction device according to claim 10, characterized in that, At least one of the aforementioned preheating roll, at least one stretching roll, and at least one heat-setting roll is unitized. The unitized roller configuration described above includes a first unit with a specified number of rollers being unitized, and a second unit with a different number of rollers being unitized, which can replace the first unit and the second unit depending on the application.

13. The spinning traction device according to any one of claims 1 to 6, characterized in that, A guide roller that guides the yarn to the second guide section is disposed at a position downstream of the aforementioned stretching section in the yarn travel direction. The second guide section is positioned directly above the take-up section such that the acute angle formed by the direction of the filament traveled from the guide roller and the horizontal plane is 0 degrees or more and within 20 degrees.

14. The spinning traction device according to any one of claims 1 to 6, characterized in that, A guide roller is positioned downstream of the aforementioned stretching section in the direction of yarn travel. In the direction of yarn travel, a second yarn feeding roller that guides the yarn to the second guide is disposed between the second guide portion and the guide roller. The second guide portion is positioned directly above the take-up portion such that the acute angle formed by the direction of the filament traveled from the second filament conveying roller and the horizontal plane is 0 degrees or more and within 20 degrees.

15. The spinning traction device according to any one of claims 1 to 6, characterized in that, The aforementioned winding section includes two winding devices arranged in a direction approximately orthogonal to the aforementioned yarn channel when viewed from above. The aforementioned spinning traction unit distributes and transports the multiple filaments relative to the aforementioned two winding devices. At least the aforementioned yarn attraction section, the aforementioned first guide section, the aforementioned stretching section, the aforementioned second guide section, and the aforementioned first yarn conveying roller are all arranged within the width direction of the aforementioned winding section.

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