JP2021102835A - Combined filament yarn production device - Google Patents

Abstract

To provide a combined filament yarn production device with suppressed power consumption.SOLUTION: A combined filament yarn production device is assembled with first heating rollers 31-33, second heating rollers 34, 35 having a yarn feed speed higher than that of the first heating rollers 31-33 and having higher temperature, a thermal insulation box 30 for accommodating the heating rollers 31-35, a guide roller 36 for guiding a yarn Y to the second heating roller 34 not via the first heating rollers 31-33, and a yarn doubling device 16 for yarn doubling of a yarn Y1 of a first group and a yarn Y2 of a second group, wherein the yarn Y1 of the first group reaching the second heating roller 34 via the first heating rollers 31-33 to be drawn between the first heating roller 33 and the second heating roller 34 and the yarn Y2 of the second group reaching the second heating roller 34 via the guide roller 36 are subjected to yarn doubling by using the yarn doubling device 16.SELECTED DRAWING: Figure 1

Description

In the present invention, a plurality of yarns spun from a spinning device are divided into a first group yarn and a second group yarn and subjected to different treatments, and then the first group yarn and the second group yarn are combined. The present invention relates to a mixed yarn manufacturing apparatus that manufactures a mixed yarn by combining yarns.

The drawn yarn (FDY: Fully Draw Yarn), which is a drawn yarn, and the partially oriented yarn (POY: Partially Oriented Yarn), which is not a drawn yarn, have different shrinkage rates. .. Mixed yarn (BSY: Bi Shrinkage Yarn), which is a combination of two types of yarns with different shrinkage rates, is known to have a good texture, and devices for manufacturing BSY have been used so far. Proposed.

For example, in the apparatus of Patent Document 1, a part of the yarns spun from the spinning apparatus is heated by the heating roller 12 and then stretched between the heating roller 12 and the roller 11 to become FDY. On the other hand, the remaining yarn spun from the spinning apparatus becomes POY by passing through the roller 11 without passing through the heating roller 12. Then, after the FDY and POY are combined and heat-set by the heating roller 14, BSY is generated.

CN101265627A Gazette

In the apparatus of Patent Document 1, since the yarn heated by the heating roller 12 passes through the roller 11 which is a non-heating roller before being heat-set by the heating roller 14, the temperature of the yarn tends to decrease. Further, since the heating roller 12 and the heating roller 14 are housed in separate heat insulating boxes, the thread heated by the heating roller 12 travels outside the heat insulating box before being heated by the heating roller 14. As a result, the temperature of the thread drops here as well. Therefore, in the apparatus of Patent Document 1, there is a problem that a large amount of heat is required when the yarn is heat-set by the heating roller 14, and the power consumption becomes large.

In view of the above problems, the blended yarn manufacturing apparatus according to the present invention aims to reduce power consumption.

In the present invention, a plurality of yarns spun from a spinning device are divided into a first group yarn and a second group yarn and subjected to different treatments, and then the first group yarn and the second group yarn are subjected to different treatments. It is a mixed fiber yarn manufacturing apparatus for producing a mixed yarn by combining yarns, and is arranged on the downstream side of the first heating roller and the yarn traveling direction of the first heating roller, and is more than the first heating roller. The second heating roller having a high yarn feed rate and a high temperature, a heat insulating box accommodating the first heating roller and the second heating roller, and the second heating roller without passing through the first heating roller. The second group is provided with a guide roller for guiding the yarn of the second group and a yarn combining device for combining the yarn of the first group and the yarn of the second group, via the first heating roller. The yarn of the first group that reaches the heating roller and is stretched between the first heating roller and the second heating roller, and the second group of threads that reach the second heating roller via the guide roller. The yarn is combined by the yarn combining device.

In the present invention, the threads of the first group are stretched between the first heating roller and the second heating roller, so that the threads of the first group heated by the first heating roller are heat-set by the second heating roller. It does not go through a non-heated roller before it is done. Further, since the first heating roller and the second heating roller are housed in the same heat insulating box, the heat insulating box before the first group of threads heated by the first heating roller is heat-set by the second heating roller. Never drive outside. Therefore, it is possible to suppress the temperature drop of the yarn of the first group heated by the first heating roller, and it is possible to reduce the amount of heat required to heat set the yarn of the first group by the second heating roller. .. Further, the yarn of the second group can also be heat-set by the second heating roller in the heat insulating box. Therefore, the power consumption of the mixed fiber yarn manufacturing apparatus can be suppressed.

In the present invention, the yarn combining device may be an entanglement device that combines the yarns of the first group and the yarns of the second group by the action of a fluid.

By combining the yarns of the first group and the yarns of the second group by the action of the fluid, the yarns can be combined without damaging the yarns.

In the present invention, there is a yarn-combining auxiliary device that assists in combining the yarn of the first group and the yarn of the second group between the first heating roller and the yarn-synthesizing device in the yarn traveling direction. It should be arranged.

When the yarns of the first group and the yarns of the second group are heated by the second heating roller in a state where the yarns of the first group and the yarns of the second group are not combined, the tension of the yarns of the second group that are not stretched becomes low, and the yarns are likely to sway. Become. Therefore, by providing the above-mentioned combined yarn assisting device and performing the combined yarn at an early stage, the yarn of the second group can be supported by the yarn of the first group which has been stretched and has a high tension. Since it can be done, the thread sway can be suppressed. When a plurality of first heating rollers are provided, the first heating roller in the present invention refers to the first heating roller arranged on the most downstream side in the yarn traveling direction.

In the present invention, the combined yarn assisting device may be arranged inside the heat insulating box.

According to such a configuration, since the combined yarn assisting device can be provided near the second heating roller, the effect of suppressing yarn sway can be improved.

In the present invention, it is preferable that the combined yarn assisting device is arranged on the downstream side in the yarn traveling direction with respect to the second heating roller.

If the combined yarn assisting device is provided on the upstream side in the yarn traveling direction from the second heating roller, the combined yarn is performed before or during the drawing of the yarn of the first group, and the quality of the mixed yarn is deteriorated. I may end up doing it. Therefore, as described above, it is possible to more effectively suppress the deterioration of the quality of the mixed yarn by providing the combined yarn assisting device on the downstream side in the yarn traveling direction rather than the second heating roller. When a plurality of second heating rollers are provided, the second heating roller in the present invention refers to the second heating roller arranged on the most upstream side in the yarn traveling direction.

In the present invention, the combined yarn assisting device is arranged at a position closer to the second heating roller than an intermediate position between a position where the yarn is separated from the second heating roller and a position where the yarn is led out from the heat insulating box. It should be done.

According to such a configuration, since the combined yarn assisting device can be provided closer to the second heating roller, the effect of suppressing the yarn sway can be further improved.

In the present invention, it is preferable that the combined yarn assisting device is arranged between the first heating roller and the second heating roller in the yarn traveling direction.

In this way, if a yarn combination assisting device is provided between the first heating roller and the second heating roller, that is, in the section where the yarn of the first group is drawn, the yarn sway can be suppressed at an earlier stage. It is advantageous in that.

In the present invention, the combined yarn assisting device may be an entanglement device that combines the yarns of the first group and the yarns of the second group by the action of a fluid.

By combining the yarns of the first group and the yarns of the second group by the action of the fluid, the yarns can be combined without damaging the yarns.

In the present invention, the heat insulating box is formed with a first introduction port for introducing the yarn of the first group and a second introduction port for introducing the yarn of the second group, respectively. Good.

According to such a configuration, at the time of introducing the thread into the heat insulating box, the thread path of the first group of threads and the thread path of the second group of threads can be separated, so that the thread hooking work in the heat insulating box can be performed. Is easier to do.

In the present invention, the first introduction port and the second introduction port may be formed on the same surface of the heat insulating box.

According to such a configuration, the thread can be introduced into the heat insulating box from the first introduction port and the second introduction port from the same side of the heat insulating box, so that the thread hooking work becomes easy.

In the present invention, a lead-out port for leading out the yarn is formed on the surface of the heat insulating box on which the first introduction port and the second introduction port are formed, and the second introduction port and the second introduction port are formed. The distance between the 1 inlet and the outlet may be shorter than the distance between the second inlet and the outlet.

By doing so, the first introduction port and the second introduction port can be brought close to each other, so that the thread hooking work becomes easier.

In the present invention, the second introduction port may be formed so as to face the space in the heat insulating box in which the first heating roller is arranged.

By providing the second introduction port in addition to the first introduction port, the heat in the heat insulating box is likely to flow out, and the heat retaining property may be deteriorated. However, as described above, by forming the second introduction port so as to face the space where the first heating roller having a lower temperature than the second heating roller is arranged, heat flows out through the second introduction port. Can be suppressed, and a decrease in heat retention can be suppressed.

In the present invention, the guide roller may be arranged at the second introduction port.

According to such a configuration, it is not necessary to secure a space for arranging the guide rollers, which is preferable.

In the present invention, it is preferable that a part of the guide roller protrudes inside the heat insulating box from the second introduction port when viewed from the axial direction of the guide roller.

According to such a configuration, even when the yarn of the second group is sharply folded back by the guide roller, it is possible to prevent the yarn of the second group from coming into contact with the peripheral edge portion of the second introduction port.

In the present invention, it is preferable that a part of the guide roller projects to the outside of the heat insulating box from the second introduction port when viewed from the axial direction of the guide roller.

According to such a configuration, even when the yarn of the second group is sharply folded back by the guide roller, it is possible to prevent the yarn of the second group from coming into contact with the peripheral edge portion of the second introduction port.

In the present invention, a plurality of the second heating rollers are provided, and the yarns of the second group reach the second heating rollers arranged on the most upstream side in the yarn traveling direction via the guide rollers. It is good.

By doing so, the yarns of the second group can be heated by the plurality of second heating rollers, so that the heat setting of the yarns of the second group can be surely performed.

In the present invention, the guide roller may be a drive roller.

If the guide roller is a drive roller, the tension of the yarn of the second group can be adjusted by the rotation speed of the guide roller, so that the quality of the yarn can be easily controlled.

It is a front view which shows the mixed fiber yarn manufacturing apparatus of this embodiment. It is a side view which shows the mixed fiber yarn manufacturing apparatus of this embodiment. It is a front view of the spinning and drawing apparatus. It is a perspective view of the spinning and drawing apparatus. It is a front view of the spinning and drawing apparatus which concerns on a modification.

(Overall configuration of mixed yarn manufacturing equipment)
An embodiment of the mixed fiber yarn manufacturing apparatus according to the present invention will be described. FIG. 1 is a front view showing the mixed fiber yarn manufacturing apparatus of this embodiment. FIG. 2 is a side view showing the mixed fiber yarn manufacturing apparatus of this embodiment. The front-rear direction, the left-right direction, and the up-down direction in the mixed fiber yarn manufacturing apparatus 1 are defined as shown in FIGS. 1 and 2.

In the mixed fiber yarn manufacturing apparatus 1 of the present embodiment, a plurality of synthetic fiber yarns Y formed by solidifying the molten resin continuously spun from the spinning apparatus 2 are formed by the yarns Y1 of the first group and the yarns Y1 of the second group. Separately from the thread Y2, a different process is applied. Specifically, the yarn Y1 of the first group is drawn to obtain a drawn yarn (FDY: Fully Draw Yarn), and the yarn Y2 of the second group is not drawn to be partially oriented yarn (POY: Partially Oriented). Yarn). Then, the mixed yarn Y3 (BSY: Bi Shrinkage Yarn) is produced by combining the yarn Y1 of the first group which is FDY and the yarn Y2 of the second group which is POY. As described above, the mixed fiber yarn Y3 composed of two types of yarns Y1 and Y2 having different shrinkage ratios is known to have a good texture. When the type of yarn is not specifically limited in the present specification, it is simply referred to as yarn Y.

The mixed yarn manufacturing apparatus 1 includes a spinning and drawing apparatus 3, a winding apparatus 4, a fiber splitting guide 11, a godet roller 12 to 15, and a yarn combining apparatus 16. In FIG. 2, the godet rollers 12 and 13 are not shown, and the yarn path around the spinning and drawing device 3 is simply illustrated.

The fiber splitting guide 11 is, for example, a comb-shaped guide, and is arranged below the spinning device 2. All the yarns Y spun from the spinning apparatus 2 are divided into half of the yarns Y1 of the first group and half of the yarns Y2 of the second group in the fiber splitting guide 11. For example, when the number of yarns Y spun from the spinning apparatus 2 is 16, the yarns Y1 of the first group of eight yarns Y1 and the yarns Y2 of the second group of eight yarns are divided into eight yarns, and finally eight mixed yarns. Y3 is generated.

The godet rollers 12 to 15 are rotationally driven by a motor (not shown). The godet rollers 12 and 13 have a rotation axis extending in the front-rear direction. The godet rollers 14 and 15 have a rotation axis extending in the left-right direction. The godet roller 12 is arranged between the fiber splitting guide 11 and the spinning and drawing device 3 in the yarn traveling direction. The godet rollers 13 to 15 are arranged between the spinning and drawing device 3 and the winding device 4 in the yarn traveling direction.

The yarn Y1 of the first group is introduced into the spinning and drawing apparatus 3 via the godet roller 12 after the fiber splitting guide 11. On the other hand, the yarn Y2 of the second group is introduced into the spinning / drawing apparatus 3 via the guide roller 36 provided in the spinning / drawing apparatus 3 after the fiber splitting guide 11. As will be described in detail later, in the spinning and drawing device 3, the yarn Y1 of the first group, which is FDY, and the yarn Y2 of the second group, which is POY, are auxiliaryly combined by the combined yarn auxiliary device 37. Mixed fiber yarn Y3 is produced.

The mixed yarn Y3 derived from the spinning and drawing device 3 is sent to the winding device 4 via the godet rollers 13 to 15. A yarn combining device 16 is arranged between the godette roller 14 and the godette roller 15 in the yarn traveling direction. The yarn combining device 16 is an entanglement device that injects compressed air (fluid) and combines the yarn Y1 of the first group and the yarn Y2 of the second group by the action of the compressed air. As described above, the mixed yarn Y3 that has already been auxiliaryly combined by the spinning and drawing device 3 is firmly combined by the combining device 16.

The winding device 4 has a plurality of fulcrum guides 41, a traverse device 42, a contact roller 43, two bobbin holders 44, and a turret 45. The plurality of mixed yarns Y3 sent to the winding device 4 are traversed in the front-rear direction by the traverse device 42 around the plurality of fulcrum guides 41. The contact roller 43 contacts the surfaces of the plurality of packages P to apply a predetermined contact pressure to adjust the shape of the packages P. The bobbin holder 44 extends in the front-rear direction, and a plurality of bobbins B can be mounted in a state of being arranged in the front-rear direction. The bobbin holder 44 is rotationally driven by a motor (not shown). The turret 45 cantilever supports the two bobbin holders 44. By rotationally driving the turret 45 by a motor (not shown), the positions of the two bobbin holders 44 can be switched between the upper winding position and the lower standby position.

The take-up device 4 winds a plurality of mixed yarns Y3 on a plurality of bobbins B by rotating a bobbin holder 44 at an upper take-up position to form a plurality of packages P. When the plurality of packages P are completed, the turret 45 is rotated to switch the positions of the two bobbin holders 44. Then, the plurality of mixed yarns Y3 are wound around the plurality of bobbins B mounted on the bobbin holder 44 newly moved to the winding position.

(Spinning and stretching equipment)
The details of the spinning and drawing apparatus 3 will be described. FIG. 3 is a front view of the spinning and drawing device 3. FIG. 4 is a perspective view of the spinning and drawing device 3. In FIG. 3, the yarn Y1 of the first group is shown by a long-dashed line, the yarn Y2 of the second group is shown by a long-dashed line, and the mixed yarn Y3 is shown by a solid line. The spinning and stretching device 3 has a heat insulating box 30 and a plurality of (five in this embodiment) heating rollers 31 to 35 housed inside the heat insulating box 30.

The heating rollers 31 to 35 have a rotation shaft extending in the front-rear direction, and are rotationally driven by a motor (not shown) in the direction of the arrow in FIG. Further, the heating rollers 31 to 35 have a built-in heater (not shown), and heat the thread Y wound around the peripheral surface of the heating rollers 31 to 35. The heating rollers 31 to 35 all have substantially the same outer diameter. Of the five heating rollers 31 to 35, the three first heating rollers 31 to 33 on the upstream side in the yarn traveling direction are preheating rollers for preheating the yarn Y before drawing. The surface temperature of the first heating rollers 31 to 33 is set to a temperature equal to or higher than the glass transition point of the yarn Y (for example, about 80 ° C.). On the other hand, of the five heating rollers 31 to 35, the two second heating rollers 34 and 35 on the downstream side in the yarn traveling direction are heat setting rollers for heat-setting the yarn Y. The surface temperature of the second heating rollers 34 and 35 is set to a temperature higher than the surface temperature of the first heating rollers 31 to 33 (for example, about 130 to 140 ° C.). Further, the rotation speed of the second heating rollers 34, 35, that is, the thread feed speed is set to a speed higher than that of the first heating rollers 31 to 33.

Of the three first heating rollers 31 to 33, the first heating roller 31 on the most upstream side in the thread traveling direction is arranged below the remaining two first heating rollers 32 and 33. The second first heating roller 32 in the thread traveling direction and the third first heating roller 33 in the thread traveling direction are arranged adjacent to each other in the left-right direction. The axis of the second first heating roller 32 in the thread traveling direction is located on the right side of the axis of the first heating roller 31 on the most upstream side in the thread traveling direction. The axis of the third first heating roller 33 in the thread traveling direction is located on the left side of the axis of the first heating roller 31 on the most upstream side in the thread traveling direction.

The two second heating rollers 34, 35 are arranged adjacent to each other in the left-right direction on the upper side of the first heating rollers 31 to 33. The second heating roller 34 on the upstream side in the yarn traveling direction is arranged adjacent to the upper side of the second first heating roller 32 in the yarn traveling direction. The second heating roller 35 on the downstream side in the yarn traveling direction is arranged above the third first heating roller 33 in the yarn traveling direction. The second heating roller 35 on the downstream side in the thread traveling direction is arranged so as to be offset above the second heating roller 34 on the upstream side in the thread traveling direction. More specifically, the axis of the second heating roller 35 on the downstream side in the thread traveling direction is located above the axis of the second heating roller 34 on the upstream side in the thread traveling direction.

In this way, the five heating rollers 31 to 35 are compactly and densely arranged in the left-right direction and the up-down direction.

As shown in FIG. 4, the heat insulating box 30 has a main body 38 having an opening at the front and a door 39 capable of closing the opening of the main body 38. When the spinning and drawing device 3 is in operation, the door portion 39 is closed. A first introduction port 30a, a second introduction port 30b, and an outlet port 30c are formed on the right side surface of the main body 38. The first introduction port 30a is formed at the lower end of the right side surface of the main body 38, and is an opening for introducing the first group of threads Y1 into the heat insulating box 30. The lead-out port 30c is formed at the upper end of the right side surface of the main body 38, and is an opening for leading the mixed fiber yarn Y3 to the outside of the heat insulating box 30. The second introduction port 30b is formed between the first introduction port 30a and the outlet port 30c, and is an opening for introducing the second group of threads Y2 into the heat insulating box 30. The second introduction port 30b is provided in a portion below the center of the right side surface of the heat insulating box 30, and is arranged adjacent to the upper side of the first introduction port 30a. That is, the second introduction port 30b is formed at a position where the distance between the second introduction port 30b and the first introduction port 30a is shorter than the distance between the second introduction port 30b and the outlet port 30c. There is. Further, the second introduction port 30b faces a space in which the first heating rollers 31 to 33, which are lower in temperature than the second heating rollers 34 and 35, are arranged.

A guide roller 36 is arranged at the second introduction port 30b. The guide roller 36 is a rotatable roller having a rotation axis extending in the front-rear direction. The guide roller 36 has an outer diameter larger than the wall thickness on the right side surface of the heat insulating box 30. The guide rollers 36 are arranged so as to project from the right side surface of the heat insulating box 30 to the outside and the inside of the heat insulating box 30 when viewed from the axial direction. The guide roller 36 may be a driven roller that rotates by friction with the thread Y, but is preferably a drive roller that is rotationally driven by a motor (not shown). If the guide roller 36 is a drive roller, the tension of the thread Y can be adjusted by the rotation speed of the guide roller 36, so that the quality of the thread Y can be easily controlled.

The spinning and drawing device 3 is provided with a yarn combination assisting device 37. As shown in FIG. 3, the yarn combining auxiliary device 37 has a position A1 in which the yarn Y is separated from the second heating roller 35 on the most downstream side in the yarn traveling direction, and a position A2 in which the yarn Y is led out from the heat insulating box 30. It is arranged at a position closer to the second heating roller 35 than the intermediate position A3 of the above. That is, the combined yarn assisting device 37 is arranged on the downstream side of the second heating roller 35 in the thread traveling direction and in the vicinity of the second heating roller 35. Similar to the yarn-combining device 16, the yarn-combining auxiliary device 37 is an entanglement device that injects compressed air and combines the yarn Y1 of the first group and the yarn Y2 of the second group by the action of the compressed air. However, the combined yarn assisting device 37 is set to have a lower injection pressure of compressed air than the combined yarn device 16. Therefore, the degree to which the yarn Y1 of the first group and the yarn Y2 of the second group are combined by the yarn combining auxiliary device 37 is weaker than that of the yarn combining device 16, and the yarn combining auxiliary device 37 assists the yarn. It has a role.

In the spinning and drawing apparatus 3 configured as described above, the yarn Y1 of the first group is introduced into the heat insulating box 30 from the first introduction port 30a via the godet roller 12, and the first heating rollers 31 to 33 and the first 2 It is hung on the heating rollers 34 and 35 and the yarn assisting device 37. In the heat insulating box 30, the yarn Y1 of the first group is wound around all the heating rollers 31 to 35. Specifically, the yarn Y1 of the first group includes a first heating roller 31, a first heating roller 32 on the upper right side thereof, a first heating roller 33 on the left side thereof, and a second heating roller 34 on the upper right side thereof from the upstream side in the thread traveling direction. , The second heating roller 35 on the left side is wound in a zigzag manner in this order. The yarn Y1 of the first group is preheated to a temperature at which it can be stretched (a temperature equal to or higher than the glass transition point) by the first heating rollers 31 to 33. The preheated yarn Y1 of the first group is stretched by the difference in yarn feed rate between the first heating roller 33 and the second heating roller 34 to become FDY. The yarn Y1 of the first group is heat-set in a state of being stretched by the second heating rollers 34 and 35.

On the other hand, the yarn Y2 of the second group is introduced into the heat insulating box 30 from the second introduction port 30b via the guide roller 36, and is hung on the second heating rollers 34 and 35 and the yarn combining auxiliary device 37. In the heat insulating box 30, the yarn Y2 of the second group is guided from the guide roller 36 to the second heating roller 34 adjacent to the right side surface of the heat insulating box 30. That is, the yarn Y2 of the second group reaches the second heating roller 34 on the most upstream side in the yarn traveling direction without passing through the first heating rollers 31 to 33. Since the yarn Y2 of the second group is not stretched between the first heating roller 33 and the second heating roller 34, the yarn Y2 is heat-set by the second heating rollers 34 and 35 in a POY state.

The yarn Y1 of the first group and the yarn Y2 of the second group merged by the second heating roller 34 on the most upstream side in the yarn traveling direction become a mixed yarn Y3 by being combined by the yarn combining auxiliary device 37. .. The mixed fiber yarn Y3 is led out from the outlet 30c to the outside of the heat insulating box 30, and is wound by the winding device 4 via the godet rollers 13 to 15. Between the godet roller 13 and the godet roller 14, the yarn-combining device 16 recombines the mixed yarn Y3.

Here, the yarn Y1 of the first group and the yarn Y2 of the second group merge on the peripheral surface of the second heating roller 34, and run in a state where the corresponding yarns overlap each other. When the yarn Y1 of the first group and the yarn Y2 of the second group are heat-set by the second heating rollers 34 and 35, the tension of the yarn Y1 of the first group, which is FDY, is almost unchanged because it has already been stretched. However, the tension of the thread Y2 of the second group, which is POY, decreases and the thread Y2 becomes loose. Therefore, there is a problem that the yarn Y2 of the second group is loosened in a state where the yarn Y1 of the first group and the yarn Y2 of the second group are not combined, so that yarn sway is likely to occur. In order to solve such a problem of yarn sway, in the present embodiment, a yarn combining auxiliary device 37 is provided immediately after the second heating roller 35 on the most downstream side in the yarn traveling direction, and the yarn is combined at an early stage. ing. By doing so, the yarn Y2 of the second group can be supported by the yarn Y1 of the first group having high tension, so that the yarn sway can be suppressed.

In the present embodiment, the first heating roller 32 is arranged adjacent to the upper side of the guide roller 36. That is, there is a second first heating roller 32 in the yarn traveling direction between the guide roller 36 and the second heating roller 34 on the most upstream side in the yarn traveling direction. In such an arrangement, the yarn Y2 of the second group passes from the guide roller 36 through a narrow gap between the first heating roller 32 and the right side surface of the heat insulating box 30, and is further above the first heating roller 32. It is guided to the second heating roller 34 arranged in. As a result, the thread path of the thread Y2 of the second group from the guide roller 36 arranged in the second introduction port 30b to the second heating roller 34 is formed so as to extend in the vertical direction along the right side surface of the heat insulating box 30. Will be done. Therefore, the thread Y2 of the second group may interfere with the peripheral edge of the second introduction port 30b. In the present embodiment, as described above, since the guide roller 36 is arranged so as to project inward from the right side surface of the heat insulating box 30, it is not necessary to add another guide roller inside the heat insulating box 30. It is easy to prevent the thread Y2 of the second group from interfering with the peripheral edge of the second introduction port 30b.

On the other hand, on the outside of the heat insulating box 30, the thread path of the second group of threads Y2 from the fiber splitting guide 11 to the guide roller 36 is also formed so as to extend in the vertical direction along the right side surface of the heat insulating box 30. Therefore, even on the outside of the heat insulating box 30, the thread Y2 of the second group may interfere with the peripheral edge of the second introduction port 30b. In the present embodiment, since the guide roller 36 is also arranged so as to project to the outside of the right side surface, the fiber division guide 11 is provided on the outside of the heat insulation box 30 without adding another guide roller to the outside of the heat insulation box 30. It is easy to prevent the second group of threads Y2 guided from the guide roller 36 from interfering with the peripheral edge of the second introduction port 30b.

Therefore, the yarn Y2 of the second group supplied downward toward the second introduction port 30b on the outside of the heat insulating box 30 is sharply folded upward after passing through the second introduction port 30b and guided to the second heating roller 34. The configuration can be realized using only one guide roller 36.

In the mixed fiber yarn manufacturing apparatus 1, if all the yarns Y spun from the spinning apparatus 2 are wound around the heating rollers 31 to 35, it is possible to make all the yarns Y FDY. .. That is, it is also possible to use the mixed fiber yarn manufacturing apparatus 1 as the drawn yarn manufacturing apparatus.

(effect)
As described above, in the mixed yarn manufacturing apparatus 1 of the present embodiment, the first heating rollers 31 to 33 and the second heating rollers 34, 35 are housed in the heat insulating box 30. The yarn Y1 of the first group reaches the second heating roller 34 via the first heating rollers 31 to 33, and is stretched between the first heating roller 33 and the second heating roller 34. The yarn Y2 of the second group reaches the second heating roller 34 via the guide roller 36. Then, the yarn Y1 of the first group and the yarn Y2 of the second group merged by the second heating roller 34 are configured to be combined by the yarn combining device 16.

According to such a configuration, since the yarn Y1 of the first group is stretched between the first heating roller 33 and the second heating roller 34, the yarn Y1 of the first group heated by the first heating rollers 31 to 33 The thread Y1 does not pass through the non-heated rollers before being heat-set by the second heating rollers 34, 35. Further, since the first heating rollers 31 to 33 and the second heating rollers 34, 35 are housed in the same heat insulating box 30, the yarn Y1 of the first group heated by the first heating rollers 31 to 33 is second. It does not run outside the heat insulating box 30 before being heat-set by the heating rollers 34 and 35. Therefore, it is possible to suppress the temperature drop of the yarn Y1 of the first group heated by the first heating rollers 31 to 33, and it is necessary to heat set the yarn Y1 of the first group by the second heating rollers 34 and 35. The amount of heat can be reduced. Further, the yarn Y2 of the second group can also be heat-set by the second heating rollers 34 and 35 in the heat insulating box 30. Therefore, the power consumption of the mixed fiber yarn manufacturing apparatus 1 can be suppressed.

In the present embodiment, the yarn combining device 16 for combining the yarn Y1 of the first group and the yarn Y2 of the second group combines the yarn Y1 of the first group and the yarn Y2 of the second group by the action of a fluid. To do. By combining the yarn Y1 of the first group and the yarn Y2 of the second group by the action of the fluid, the yarn Y can be combined without damaging the yarn Y.

In the present embodiment, the yarn Y1 of the first group and the yarn Y2 of the second group are assisted between the first heating roller 33 and the yarn combining device 16 arranged on the most downstream side in the yarn traveling direction. A combined yarn assisting device 37 is arranged. When the yarn Y1 of the first group and the yarn Y2 of the second group merged by the second heating roller 34 are heated by the second heating rollers 34 and 35 in a state where the yarns have not been combined, the second group is not stretched. The tension of the thread Y2 is lowered, and the thread is likely to sway. Therefore, by providing the combined yarn assisting device 37 and performing the combined yarn at an early stage, the yarn Y2 of the second group can be supported by the yarn Y1 of the first group that has been stretched and has a high tension. Therefore, the thread sway can be suppressed.

In the present embodiment, the combined yarn assisting device 37 is arranged inside the heat insulating box 30. According to such a configuration, since the combined yarn assisting device 37 can be provided near the second heating roller 35, the effect of suppressing the yarn sway can be improved.

In the present embodiment, the combined yarn assisting device 37 is arranged on the downstream side of the second heating roller 34 arranged on the most upstream side in the yarn traveling direction. When the combined yarn assisting device 37 is provided on the upstream side of the second heating roller 34 in the yarn traveling direction, the combined yarn is performed before or during the drawing of the yarn Y1 of the first group, and the mixed yarn Y3 The quality of the product may deteriorate. Therefore, it is possible to more effectively suppress the deterioration of the quality of the mixed yarn Y3 by providing the combined yarn assisting device 37 on the downstream side in the yarn traveling direction as compared with the second heating roller 34 as described above.

In the present embodiment, the combined yarn assisting device 37 has a second heating roller rather than an intermediate position A3 between the position A1 where the yarn Y is separated from the second heating roller 35 and the position A2 where the yarn Y is led out from the heat insulating box 30. It is arranged at a position close to 35. According to such a configuration, the combined yarn assisting device 37 can be provided closer to the second heating roller 35, so that the effect of suppressing the yarn sway can be further improved.

In the present embodiment, the yarn assisting device 37 combines the yarn Y1 of the first group and the yarn Y2 of the second group by the action of a fluid. By combining the yarn Y1 of the first group and the yarn Y2 of the second group by the action of the fluid, the yarn Y can be combined without damaging the yarn Y.

In the present embodiment, the heat insulating box 30 is formed with a first introduction port 30a for introducing the thread Y1 of the first group and a second introduction port 30b for introducing the thread Y2 of the second group, respectively. ing. According to such a configuration, at the time of introducing the thread Y into the heat insulating box 30, the thread path of the thread Y1 of the first group and the thread path of the thread Y2 of the second group can be separated, so that the inside of the heat insulating box 30 It becomes easier to perform threading work in.

In the present embodiment, the first introduction port 30a and the second introduction port 30b are formed on the same surface of the heat insulating box 30. According to such a configuration, the thread Y can be introduced into the heat insulating box 30 from the first introduction port 30a and the second introduction port 30b from the same side of the heat insulating box 30, so that the thread hooking work becomes easy.

In the present embodiment, the lead-out port 30c for leading out the thread Y is formed on the surface of the heat insulating box 30 on which the first introduction port 30a and the second introduction port 30b are formed, and the second introduction port 30b is formed. The distance between the first inlet 30a and the first inlet 30a is shorter than the distance between the second inlet 30b and the outlet 30c. By doing so, the first introduction port 30a and the second introduction port 30b can be brought close to each other, so that the thread hooking work becomes easier.

In the present embodiment, the second introduction port 30b is formed so as to face the space in the heat insulating box 30 in which the first heating rollers 31 to 33 are arranged. By providing the second introduction port 30b in addition to the first introduction port 30a, the heat in the heat insulating box 30 is likely to flow out, and the heat retention property may be lowered. However, by forming the second introduction port 30b so as to face the space in which the first heating rollers 31 to 33, which are lower than the second heating rollers 34 and 35, are arranged, the second introduction port 30b is interposed. The outflow of heat can be suppressed, and the decrease in heat retention can be suppressed.

In the present embodiment, the guide roller 36 is arranged at the second introduction port 30b. According to such a configuration, it is not necessary to secure a space for arranging the guide roller 36, which is preferable.

In the present embodiment, a part of the guide roller 36 projects from the second introduction port 30b to the inside of the heat insulating box 30 when viewed from the axial direction of the guide roller 36. According to such a configuration, even when the thread Y2 of the second group is sharply folded back by the guide roller 36, it is possible to prevent the thread Y2 of the second group from coming into contact with the peripheral edge portion of the second introduction port 30b.

In the present embodiment, a part of the guide roller 36 projects to the outside of the heat insulating box 30 from the second introduction port 30b when viewed from the axial direction of the guide roller 36. According to such a configuration, even when the thread Y2 of the second group is sharply folded back by the guide roller 36, it is possible to prevent the thread Y2 of the second group from coming into contact with the peripheral edge portion of the second introduction port 30b.

In the present embodiment, the yarn Y2 of the second group reaches the second heating roller 34 arranged on the most upstream side in the yarn traveling direction via the guide roller 36. Therefore, since the yarn Y2 of the second group can be heated by the plurality of second heating rollers 34 and 35, the heat setting of the yarn Y2 of the second group can be surely performed.

(Other embodiments)
A modified example in which various changes are made to the above embodiment will be described.

In the above embodiment, a yarn-combining device 16 and a yarn-combining auxiliary device 37 are provided as a device for combining the yarn Y1 of the first group and the yarn Y2 of the second group. However, if the above-mentioned thread sway does not cause a problem or can be solved by another method, the yarn combination assisting device 37 can be omitted. Alternatively, the yarn combining device 16 may be omitted and only the yarn combining auxiliary device 37 may be provided. In this case, the yarn combining auxiliary device 37 corresponds to the yarn combining device of the present invention.

In the above embodiment, the entanglement device is adopted as the entanglement assisting device 37, but if the yarn Y of the first group and the yarn Y2 of the second group can be entangled to the extent that the yarn sway can be suppressed, other than the entanglement device. May be adopted.

In the above embodiment, the combined yarn assisting device 37 is provided near the downstream side of the second heating roller 35, which is the most downstream side in the yarn traveling direction. However, the position of the yarn assisting device 37 is not limited to this, and may be the confluence of the yarn Y1 of the first group and the yarn Y2 of the second group, or the downstream side in the yarn traveling direction from the confluence. .. For example, the yarn assisting device 37 may be arranged between the second heating roller 34 and the second heating roller 35, or may be arranged outside the heat insulating box 30. Further, when the yarn Y1 of the first group and the yarn Y2 of the second group merge on the upstream side of the second heating roller 34 on the most upstream side in the yarn traveling direction, the merging portion or the merging portion A yarn combining auxiliary device 37 may be provided between the second heating roller 34 and the second heating roller 34. That is, the union yarn assisting device 37 is at an arbitrary position between the confluence point of the yarn Y1 of the first group and the yarn Y2 of the second group and the confluence device 16 (including the confluence point) in the yarn traveling direction. Can be placed in.

FIG. 5 is a front view of the spinning and drawing device 3 according to the modified example. The same reference numerals are given to the configurations common to the above embodiments, and the description thereof will be omitted. In this modification, the section between the first heating roller 32 on the most downstream side in the yarn traveling direction and the second heating roller 34 on the most upstream side in the yarn traveling direction, that is, the section in which the yarn Y1 of the first group is drawn. The combined yarn assisting device 37 is arranged in. In this case, the yarn Y1 of the first group and the yarn Y2 of the second group are merged by the yarn combining auxiliary device 37. In other words, since the yarn merging auxiliary device 37 is provided at the confluence of the yarn Y1 of the first group and the yarn Y2 of the second group, it is advantageous in that the yarn sway can be suppressed at an earlier stage. In this modified example as well, if the above-mentioned thread sway does not pose a problem or can be solved by another method, the combined thread assisting device 37 can be omitted. Alternatively, the yarn combining device 16 may be omitted and only the yarn combining auxiliary device 37 may be provided. In this case, the yarn combining auxiliary device 37 corresponds to the yarn combining device of the present invention.

In the modified example of FIG. 5, unlike the above embodiment, the thread Y1 of the first group has a first heating roller 31 from the upstream side in the thread traveling direction, a first heating roller 33 on the upper left side thereof, and a first heating roller 32 on the right side thereof. , The second heating roller 34 on the upper side thereof, and the second heating roller 35 on the left side thereof are wound in a zigzag manner in this order. By doing so, the yarn Y1 of the first group and the yarn Y2 of the second group can be moved close to each other between the first heating roller 32 and the second heating roller 34. Therefore, it is possible to prevent one of the yarns from being greatly bent by the combined yarn assisting device 37 and being easily damaged.

In the above embodiment, the first introduction port 30a for introducing the yarn Y1 of the first group into the heat insulation box 30 and the second introduction port 30b for introducing the yarn Y2 of the second group into the heat insulation box 30, respectively. It was decided to provide. However, the yarn Y1 of the first group and the yarn Y2 of the second group may be introduced into the heat insulating box 30 from one inlet. In this case, since it is easier to form a wide introduction port as compared with the case where the introduction port is divided into two, the thread Y1 of the first group and the thread Y2 of the second group are placed in the heat insulating box 30 during the thread hooking operation. It will be easier to introduce to. Further, the specific positional relationship between the first introduction port 30a, the second introduction port 30b, and the outlet port 30c is not limited to that shown in the above embodiment.

In the above embodiment, the guide roller 36 is provided in the second introduction port 30b, but the position of the guide roller 36 is not limited to this. The guide roller 36 may be provided outside or inside the heat insulating box 30. Further, a plurality of guide rollers 36 may be provided.

In the above embodiment, it is assumed that the second heating rollers 34, 35 of the three first heating rollers 31 to 33 and 2 are provided. However, the number of the first heating roller and the second heating roller can be changed as appropriate, and at least one may be used.

In the above embodiment, the yarn Y2 of the second group is hung on all the second heating rollers 34 and 35, but it is not essential to hang the yarn Y2 of the second group on all the second heating rollers. The yarn Y2 of the second group may be hung on a part of the second heating rollers including the second heating roller on the most downstream side in the yarn traveling direction.

1: Mixed yarn manufacturing equipment 2: Spinning equipment 3: Spinning and drawing equipment 16: Synthetic yarn equipment 30: Heat insulation box 30a: First introduction port 30b: Second introduction port 30c: Outlet port 31-33: First heating roller 34 , 35: 2nd heating roller 36: Guide roller 37: Combined yarn auxiliary device Y: Thread Y1: 1st group yarn Y2: 2nd group yarn Y3: Mixed yarn

Claims (17)

A plurality of yarns spun from the spinning apparatus are divided into a first group yarn and a second group yarn and subjected to different treatments, and then the first group yarn and the second group yarn are combined. It is a mixed yarn manufacturing apparatus that manufactures mixed yarn by doing so.
With the first heating roller
A second heating roller, which is arranged on the downstream side of the first heating roller in the thread traveling direction and has a higher thread feed rate and a higher temperature than the first heating roller,
A heat insulating box accommodating the first heating roller and the second heating roller, and
A guide roller that guides the yarn of the second group to the second heating roller without passing through the first heating roller, and
A yarn combining device for combining the yarns of the first group and the yarns of the second group,
With
The yarn of the first group that reaches the second heating roller via the first heating roller and is stretched between the first heating roller and the second heating roller, and via the guide roller. A mixed fiber yarn manufacturing apparatus, characterized in that the yarns of the second group leading to the second heating roller are combined by the yarn combining apparatus. The mixed yarn manufacturing apparatus according to claim 1, wherein the yarn combining device is an entanglement device that combines the yarns of the first group and the yarns of the second group by the action of a fluid. In the yarn running direction, between the first heating roller and the yarn combining device, a yarn combining assisting device that assists in combining the yarns of the first group and the yarns of the second group is arranged. The mixed yarn manufacturing apparatus according to claim 1 or 2, wherein the blended yarn production apparatus is characterized by the above. The mixed yarn manufacturing apparatus according to claim 3, wherein the combined yarn assisting device is arranged inside the heat insulating box. The mixed yarn manufacturing apparatus according to claim 4, wherein the combined yarn assisting device is arranged on the downstream side in the yarn traveling direction with respect to the second heating roller. The combined yarn assisting device is arranged at a position closer to the second heating roller than an intermediate position between a position where the yarn is separated from the second heating roller and a position where the yarn is drawn out from the heat insulating box. The mixed yarn manufacturing apparatus according to claim 5. The mixed yarn manufacturing apparatus according to claim 4, wherein the combined yarn assisting device is arranged between the first heating roller and the second heating roller in the yarn traveling direction. The method according to any one of claims 3 to 7, wherein the yarn assisting device is an entanglement device that combines the yarns of the first group and the yarns of the second group by the action of a fluid. Mixed yarn manufacturing equipment. The heat insulating box is characterized in that a first introduction port for introducing the yarn of the first group and a second introduction port for introducing the yarn of the second group are formed respectively. The mixed yarn manufacturing apparatus according to any one of claims 1 to 8. The mixed fiber yarn manufacturing apparatus according to claim 9, wherein the first introduction port and the second introduction port are formed on the same surface of the heat insulating box. On the surface of the heat insulating box on which the first introduction port and the second introduction port are formed, a lead-out port for leading out the yarn is formed.
The mixed fiber production according to claim 10, wherein the distance between the second introduction port and the first introduction port is shorter than the distance between the second introduction port and the outlet. apparatus. The mixture according to any one of claims 9 to 11, wherein the second introduction port is formed so as to face the space in which the first heating roller is arranged in the heat insulating box. Textile manufacturing equipment. The mixed fiber yarn manufacturing apparatus according to any one of claims 9 to 12, wherein the guide roller is arranged at the second introduction port. The mixed fiber yarn manufacturing apparatus according to claim 13, wherein a part of the guide roller protrudes inside the heat insulating box from the second introduction port when viewed from the axial direction of the guide roller. .. The mixed fiber yarn according to claim 13 or 14, wherein a part of the guide roller projects to the outside of the heat insulating box from the second introduction port when viewed from the axial direction of the guide roller. manufacturing device. A plurality of the second heating rollers are provided, and the second heating rollers are provided.
According to any one of claims 1 to 15, the yarn of the second group reaches the second heating roller arranged on the most upstream side in the yarn traveling direction via the guide roller. The described mixed yarn manufacturing apparatus. The mixed fiber yarn manufacturing apparatus according to any one of claims 1 to 16, wherein the guide roller is a drive roller.

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