JP5965834B2 - Spinning and drawing equipment - Google Patents

Description

  The present invention relates to a spinning / drawing device for drawing a plurality of multifilament yarns spun from a spinning device.

  Spinning / drawing device comprising a plurality of rollers for drawing multifilament yarns such as polyester fibers spun from a spinning device, yarn winding device for winding a multifilament yarn drawn by the spinning drawing device to form a package, etc. There is known a winder comprising:

  The spinning and drawing apparatus described in Patent Document 1 includes a first heating roller, a first separating roller paired with the first heating roller, a second heating roller, and a second separating roller paired with the second heating roller. ing. The multifilament yarn is wound around the first heating roller and the first separation roller a plurality of times, and then wound around the second heating roller and the second separation roller a plurality of times.

  The upstream first heating roller is set to a temperature at which the multifilament yarn can be drawn (temperature above the glass transition point). The downstream second heating roller is set to a temperature higher than the set temperature of the first heating roller and capable of heat-fixing the drawn multifilament yarn. The downstream second heating roller is set to a yarn feeding speed faster than that of the upstream first heating roller. Therefore, the multifilament yarn preheated by the upstream first heating roller is between the upstream first heating roller and the downstream second heating roller having a higher yarn feed speed than the upstream first heating roller. Stretched. The drawn multifilament yarn is heat-fixed by the second heating roller.

  In addition, the spinning and drawing apparatus described in Patent Document 1 includes a widening guide that widens the width of one multifilament yarn composed of a plurality of filaments before traveling on the first heating roller. By increasing the yarn width of the multifilament yarn, an attempt is made to uniformly heat the plurality of filaments by reducing the overlap between the filaments in contact with the heating roller. Thus, if a plurality of filaments can be heated uniformly, variation in temperature between the filaments can be suppressed, and the quality of the multifilament yarn can be improved.

Japanese Patent No. 3634456

  When the width of the multifilament yarn is widened as in the spinning and drawing apparatus described in Patent Document 1, if the multifilament yarn is too wide, a part of the filament is separated from the multifilament yarn. Drive on. When such a multifilament yarn is heated and stretched by a heating roller, problems such as filament breakage and fluffing occur due to contact with the heating roller.

  An object of the present invention is to uniformly heat a plurality of filaments constituting one multifilament yarn in a heating roller and to suppress filament breakage and fluff generation.

  A spinning drawing device according to a first aspect of the present invention is a spinning drawing device that draws a plurality of multifilament yarns spun from the spinning device, and includes a heating roller, and a plurality of rollers for drawing the multifilament yarn. And a widening means for widening the width of one multifilament yarn composed of a plurality of filaments before being wound around the heating roller, and the yarn width widened by the widening means is not excessively widened. Yarn width regulating means for regulating the yarn width.

  In the present invention, the yarn width of one multifilament yarn composed of a plurality of filaments before being wound around the heating roller is widened by the widening means. Accordingly, since the overlapping of the filaments in the plurality of filaments is reduced, the plurality of filaments can be uniformly heated by the heating roller. Thereby, the dispersion | variation in the temperature between filaments is suppressed and the quality of multifilament yarn improves. Further, the yarn width is regulated by the yarn width regulating means so that the yarn width of the multifilament yarn whose yarn width has been widened by the widening means is not excessively widened. As a result, some filaments are not separated from the multifilament yarn and do not come into contact with the heating roller, so that filament breakage and fluff generation are suppressed.

  According to a second aspect of the present invention, there is provided a spinning / drawing apparatus according to the first aspect, wherein the widening means, the arrangement direction of the plurality of multifilament yarns on the yarn width regulating means, and the plurality of rollers The rotation axis direction of the roller with which the plurality of multifilament yarns first contact is substantially parallel.

  In the present invention, the arrangement direction of the plurality of multifilament yarns on the widening means and the yarn width regulating means, and the rotation axis direction of the roller that first contacts the plurality of multifilament yarns among the plurality of rollers are substantially the same. Parallel. Accordingly, a plurality of multifilament yarns that are widened and whose width is restricted can be widened and run on the rollers while the width of the yarn is restricted. Uniform heating can be performed, and filament breakage and fluff generation can be suppressed.

  According to a third aspect of the present invention, there is provided the spinning and drawing apparatus according to the second aspect, wherein the yarn width regulating means is a guide having a plurality of recesses through which the plurality of multifilament yarns respectively travel. .

  In the present invention, the yarn width regulating means is a comb-shaped guide having a plurality of recesses through which a plurality of multifilament yarns respectively pass, or a abacus bead guide (axisymmetric rotating or non-rotating roller guide). is there. Therefore, the yarn width regulating means can be configured simply.

  According to a fourth aspect of the present invention, there is provided the spinning / drawing apparatus according to the third aspect, wherein the plurality of recesses of the yarn width regulating means are respectively the rotation shafts of the rollers with which the plurality of multifilament yarns first contact. It has a bottom wall extending substantially parallel to the direction.

  In the present invention, each of the plurality of concave portions of the yarn width regulating means has a bottom wall extending substantially parallel to the rotation axis direction of the roller with which the plurality of multifilament yarns first contact. Therefore, since the plurality of filaments are easily dispersed and arranged over the entire width without overlapping a part of the bottom wall of the recess, the local overlap between the filaments is reduced.

  A spinning / drawing device according to a fifth aspect of the present invention is the spinning / drawing device according to the fourth aspect, wherein the width of the bottom wall is W1, and the width of the yarn in a state where the plurality of filaments are arranged without overlapping is W2. / 2) ≦ W1 ≦ W2.

  In the present invention, the relationship between the width W1 of the bottom wall and the yarn width W2 in a state where a plurality of filaments are arranged without overlapping is (W2 / 2) ≦ W1 ≦ W2. That is, the width of the bottom wall is not less than half the yarn width in a state where a plurality of filaments are arranged without overlapping, and is not more than the yarn width. Therefore, the multifilament yarn that has traveled through the concave portion is in a state in which the uniform contact with the heating roller and the converging property of the filament are balanced.

  A spinning / drawing apparatus according to a sixth aspect of the present invention is the spinning / drawing apparatus according to the fourth or fifth aspect, wherein the recess further includes a side wall continuous with the bottom wall on a curved surface.

  In the present invention, the recess further has a side wall that is continuous with the bottom wall on the curved surface. For this reason, it is prevented that a filament accumulates in the corner of a recessed part and becomes a lump.

  A spinning / drawing device according to a seventh invention is the spinning / drawing device according to any one of the first to sixth inventions, wherein the plurality of multifilament yarns are arranged upstream of the yarn width regulating means in the yarn path. It further comprises yarn dividing means for dividing into units.

  In the present invention, a plurality of multifilament yarns are divided into multifilament yarn units upstream of the yarn width by the yarn dividing means, and the pitch between the multifilament yarns is regulated in advance. Therefore, it is possible to prevent the multifilament yarn whose yarn width has been widened by the widening means from being hardened into a lump on the yarn width regulating means.

  A spinning / drawing device according to an eighth aspect is the spinning / drawing device according to the seventh aspect, wherein a pitch between the plurality of multifilament yarns on the yarn dividing means is a pitch between the plurality of concave portions of the yarn width regulating means. It is characterized by substantially the same.

  In the present invention, the pitch between the plurality of multifilament yarns on the yarn dividing means is substantially the same as the pitch between the plurality of recesses of the yarn width regulating means. For this reason, the multifilament yarn does not concentrate on one side of the concave portion of the yarn width regulating means, and the multifilament yarn can be prevented from clumping on the yarn width regulating means.

  A spinning / drawing apparatus according to a ninth aspect of the present invention is the spinning / drawing apparatus according to any one of the first to eighth aspects of the invention, wherein the widening means is a rod-shaped guide that contacts the multifilament yarn and squeezes the multifilament yarn. It is characterized by that.

  In the present invention, the widening means is a rod-shaped guide that contacts the multifilament yarn and squeezes the multifilament yarn. Therefore, the widening means can be made simple.

  In the present invention, the multi-filament yarn made of a plurality of filaments is wound around the roller in a state where the width of the multi-filament yarn is expanded before being wound around the heating roller by the widening means. Accordingly, since the overlapping of the filaments in the multifilament yarn is reduced, a plurality of filaments can be uniformly heated by the heating roller. Thereby, the dispersion | variation in the temperature between filaments is suppressed and the quality of multifilament yarn improves. Further, the yarn width is regulated by the yarn width regulating means so that the yarn width of the multifilament yarn whose yarn width has been widened by the widening means is not excessively widened. As a result, some filaments are not separated from the multifilament yarn and do not come into contact with the heating roller, so that filament breakage and fluff generation are suppressed.

It is a front view which shows the structure of the spinning winder which concerns on 1st Embodiment of this invention. It is a side view which shows a widening guide, a thread | yarn width regulation guide, a 1st godet roller, etc. It is the figure which showed the multifilament yarn which drive | works a widening guide from upper direction. It is the figure which showed the multifilament yarn which drive | works a yarn width regulation guide from upper direction. It is a front view which shows the structure of the spinning winder which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the yarn width | variety control guide which concerns on a modification. It is a side view which shows the thread separation guide etc. which concern on a modification.

  Hereinafter, embodiments of the present invention will be described. FIG. 1 is a front view showing the configuration of a take-up winder equipped with a spinning stretcher according to a first embodiment of the present invention. Hereinafter, each direction shown in FIG. 1 will be described as a vertical direction and a horizontal direction. As shown in FIG. 1, the spinning winder 1 includes a spinning drawing device 2 and a yarn winding device 3. The spinning winder 1 draws a plurality of multifilament yarns Y, which are spun from the spinning device 4 at the upper side and supplied continuously, by the spinning and drawing device 2 and sends the yarn to the yarn winding device 3. To wind up a plurality of multifilament yarns Y. The multifilament yarn Y is, for example, a polyester fiber that needs to be preheated for drawing. One multifilament yarn Y is composed of a plurality of filaments.

  The spinning drawing device 2 includes a plurality of godet rollers 5a, 5b, 6a, 6b (a plurality of rollers), a heat insulating box 7, and the like, and is disposed below the spinning device 4.

  The plurality of godet rollers 5 a to 6 b are for drawing the multifilament yarn Y spun from the spinning device 4. Each of the plurality of godet rollers 5a to 6b is a drive roller that is cantilevered by a frame (not shown) and rotated by a motor (not shown). The plurality of godet rollers 5a to 6b are heating rollers provided with a heater (not shown) inside. The plurality of godet rollers 5a to 6b include first godet rollers 5a and 5b and second godet rollers 6a and 6b.

  The first godet rollers 5a and 5b are preheating godet rollers for heating the multifilament yarn Y before stretching, in which the multifilament yarn Y before stretching travels. For example, in the case of polyester fibers, the first godet rollers 5a and 5b are usually set to a temperature of 80 to 100 ° C. In order to draw the multifilament yarn Y, heating to a temperature equal to or higher than the glass transition point is required, but the glass transition point varies depending on the polymer. The second godet rollers 6a, 6b are heat setting godet rollers for heat fixing the stretched multifilament yarn Y. In the case of polyester fibers, the second godet rollers 6a and 6b are usually set to a temperature of 120 to 150 ° C. Thus, the second godet rollers 6a and 6b have a set temperature higher than that of the first godet rollers 5a and 5b.

  The plurality of godet rollers 5a to 6b have rotating shafts extending in the depth direction of the drawing, and their respective axes are substantially parallel to each other. The plurality of godet rollers 5a to 6b have, for example, a diameter in a range of 220 to 300 mm, and have substantially the same diameter. Further, the first godet rollers 5a and 5b are disposed above the second godet rollers 6a and 6b. The first godet roller 5b is disposed above and to the left of the first godet roller 5a. The second godet roller 6b is disposed above and to the right of the second godet roller 6a. The multifilament yarn Y is wound around the plurality of godet rollers 5a to 6b in the order of the first godet rollers 5a and 5b and the second godet rollers 6a and 6b at a winding angle of 360 degrees or less, respectively.

  The heat insulation box 7 accommodates a plurality of godet rollers 5a to 6b. The heat insulation box 7 is a substantially rectangular box made of a heat insulating material. The heat retaining box 7 prevents heat generated from the plurality of godet rollers 5a to 6b from escaping to the outside, and the inside is kept warm. Inside the heat retaining box 7, a wall 8 is provided between the first godet rollers 5a and 5b and the second godet rollers 6a and 6b. The wall 8 prevents the first godet rollers 5a and 5b and the second godet rollers 6a and 6b having different set temperatures from affecting each other's set temperature. A slit 9 for introducing the multifilament yarn Y into the heat insulation box 7 is provided on the upper surface of the heat insulation box 7. The multifilament yarn Y enters the heat insulation box 7 through the slit 9 and is wound around the first godet roller 5a. A slit 10 is provided on the right side surface of the heat insulation box 7 for leading the multifilament yarn Y from the heat insulation box 7 to the outside. The multifilament yarn Y sent from the second godet roller 6b passes through the slit 10 and is led out from the heat insulating box 7.

  As described above, the rotation axis direction of the plurality of godet rollers 5a to 6b is the depth direction of the paper surface of FIG. 1 and is shifted by 90 degrees from the arrangement direction (left-right direction) of the spinning device 4. The plurality of multi-fiment yarns Y spun from the spinning device 4 are twisted 90 degrees and wound side by side in the direction of the rotation axis of the plurality of godet rollers 5a to 6b.

  The process of drawing the multifilament yarn Y will be described. The multifilament yarn Y is preheated to a temperature equal to or higher than the glass transition point by contacting the first godet rollers 5a and 5b for preheating. The preheated multifilament yarn Y is sent to the second heat setting second godet rollers 6a and 6b by the rotational drive of the preheating first godet rollers 5a and 5b. Here, for example, the upstream preheating first godet rollers 5a and 5b have substantially the same yarn feed speed (speed at which the multifilament yarn Y is sent downstream). Further, the second heat fixing second godet rollers 6a and 6b have substantially the same yarn feed speed and are faster than the first godet rollers 5a and 5b for preheating. Therefore, the multifilament yarn Y is stretched between the first godet rollers 5a and 5b for preheating and the second godet rollers 6a and 6b for heat fixation having a higher yarn feed speed than these. The drawn multifilament yarn Y is heat-fixed by contacting the second godet rollers 6a and 6b for heat-setting.

  The yarn winding device 3 is disposed below the spinning device 4 and forms a plurality of packages P by winding a plurality of multifilament yarns Y drawn by the spinning drawing device 2 around a plurality of bobbins B, respectively. . The yarn winding device 3 includes a bobbin holder 11 and a bobbin holder 11 in which a winding shaft extends horizontally in the paper depth direction, and a plurality of bobbins B are mounted in series along the axial direction (paper surface depth direction) of the winding shaft. A motor to be rotated (not shown) is included.

  The yarn winding device 3 rotates a plurality of bobbins B mounted on the bobbin holder 11 by rotating the bobbin holder 11 by driving a motor, winds a plurality of multifilament yarns Y around the rotating bobbins B, A plurality of packages P are formed. The plurality of packages P attached to the bobbin holder 11 are pushed forward by a pusher (not shown) and removed from the bobbin holder 11 when they are fully wound. Thus, the yarn winding device 3 forms a plurality of packages P in parallel by winding one multifilament yarn Y with each of the plurality of bobbins B mounted on the bobbin holder 11.

  The spinning drawing apparatus 2 of the present embodiment further includes a single multifilament yarn Y composed of a plurality of filaments Y1 (see FIG. 3) before being wound around the first godet rollers 5a and 5b and the second godet rollers 6a and 6b. A widening guide 21 (widening means) for widening the yarn width is provided. FIG. 2 is a side view showing the widening guide 21, the yarn width regulating guide 23 described later, the first godet roller 5a, and the like. As shown in FIGS. 1 and 2, the widening guide 21 is provided inside the heat retaining box 7 and above the first godet roller 5a. The widening guide 21 is a rod-shaped (cylindrical) non-rotating guide, and is attached substantially parallel to the rotation axis direction of the plurality of godet rollers 5a to 6b. The multifilament yarn Y travels from the upper side to the lower side while being in contact with the widening guide 21.

  FIG. 3 is a diagram showing the multifilament yarn Y (a plurality of filaments Y1) traveling on the widening guide 21 from above. FIG. 3A is a diagram showing a state immediately after the multifilament yarn Y starts to contact the widening guide 21. FIG. 3B is a view showing a state immediately before the multifilament yarn Y is separated from the widening guide 21. As shown in FIG. 3A, immediately after the multifilament yarn Y starts to contact the widening guide 21, the filament Y1 is in an overlapped state. Here, the multifilament yarn Y is squeezed by the widening guide 21 by running while contacting the widening guide 21 from the upper side to the lower side, and as shown in FIG. In the width direction, the thread width W is increased. That is, the widening guide 21 increases the yarn width W of the multifilament yarn Y by contacting the multifilament yarn Y and squeezing the multifilament yarn Y. The “width direction of the multifilament yarn Y” is an arrangement direction of the plurality of multifilament yarns Y. The “yarn width W of the multifilament yarn Y” is the length between both ends in the width direction of the plurality of filaments Y1 constituting one multifilament yarn Y. Therefore, for example, as shown in FIG. 3B, even when the filament Y1 is separated from the plurality of filaments Y1 constituting one multifilament yarn Y, the single multifilament yarn Y is The length between both ends in the width direction of the plurality of filaments Y1 constituting the yarn is referred to as “yarn width W of the multifilament yarn Y”. Further, among the godet rollers 5a to 6b, at least the rotation axis direction of the godet roller 5a with which the plurality of multifilament yarns Y first contact (wound), the widening guide 21, and a later-described yarn width regulation guide 23 The arrangement direction of the plurality of multifilament yarns Y is substantially parallel. In the present embodiment, since the godet rollers 5a to 6b are substantially parallel to each other, the rotational axis direction of the godet rollers 5a to 6b, the widening guide 21, and an arrangement of a plurality of multifilament yarns Y on the yarn width regulating guide 23 described later. The direction is substantially parallel to the direction.

  Further, on the upstream side of the yarn width regulating guide 23 and the widening guide 21 described later, a yarn dividing guide 22 (yarn dividing means) for dividing the plurality of multifilament yarns Y into multifilament yarn Y units is provided. ing. The yarn dividing guide 22 includes a plurality of yarn guide members 30 provided side by side in the arrangement direction of the plurality of multifilament yarns Y. By this yarn dividing guide 22 (a plurality of yarn guide members 30), a plurality of filaments Y1 constituting one multifilament yarn Y are separated from a plurality of filaments Y1 constituting another one multifilament yarn Y. Thus, after being divided separately, it travels on the widening guide 21.

  As described above, the yarn width W of one multifilament yarn Y composed of a plurality of filaments Y1 before being wound around the godet rollers 5a to 6b is widened by the widening guide 21, and the godet roller is maintained while maintaining its shape. 5a to 6b. Accordingly, since the overlapping of the filaments Y1 is reduced on the godet rollers 5a to 6b, the plurality of filaments Y1 can be uniformly heated by the godet rollers 5a to 6b. Thereby, the dispersion | variation in the temperature between the filaments Y1 is suppressed, and the quality of the multifilament yarn Y improves.

  However, as shown in FIG. 3B, if the yarn width W of the multifilament yarn Y is too wide, it is divided into a small number of fillants Y1 or some filaments Y1 are separated from the multifilament yarn Y. , And travels a plurality of godet rollers 5a-6b. When such a multifilament yarn Y is heated and stretched by the godet rollers 5a to 6b, problems such as filament breakage and fluffing occur due to contact with the godet rollers 5a to 6b.

  Therefore, in the present embodiment, the yarn drawing device 2 regulates the yarn width W of the multifilament yarn Y so that the yarn width W of the multifilament yarn Y spread by the widening guide 21 does not spread too much. 23 (yarn width regulating means). The yarn width regulating guide 23 is provided inside the heat insulating box 7 and below the widening guide 21 and above (directly above) the first godet roller 5a. The distance from the widening guide 21 to the yarn width regulating guide 23 is, for example, about 10 to 30 cm. The yarn width regulating guide 23 is a driven roller, and extends in the direction of the rotation axis of the plurality of godet rollers 5a to 6b. Accordingly, the rotation axis direction of the yarn width regulating guide 23 is parallel to the rotation axis directions of the plurality of godet rollers 5a to 6b. Further, the thread width regulating guide 23 is formed with recesses 24 in the circumferential direction, and a plurality of the recesses 24 are arranged in the rotation axis direction. The plurality of multifilament yarns Y travel through the plurality of recesses 24, respectively. That is, the yarn width regulating guide 23 is a Soroban ball-shaped guide (axisymmetric roller guide) having a plurality of recesses 24 through which a plurality of multifilament yarns Y respectively travel. When the plurality of multifilament yarns Y respectively travel through the plurality of recesses 24, the yarn width regulating guide 23 rotates. Here, the pitch between the plurality of multifilament yarns Y on the yarn dividing guide 22 (interval between the centers of the multifilament Y) is the pitch between the plurality of recesses 24 of the yarn width regulating guide 23 (between the centers of the recesses 24). It is almost the same as (interval). For this reason, the filament Y1 of the multifilament yarn Y does not collect on one side of the concave portion 24 of the yarn width regulating guide 23 on the yarn width regulating guide 23, and the yarn width W can be reliably regulated.

  FIG. 4 is a view showing the multifilament yarn Y traveling on the yarn width regulating guide 23 from above. Each of the recesses 24 of the yarn width regulating guide 23 includes at least one of the arrangement direction of the plurality of multifilament yarns Y on the yarn width regulating guide 23 and the godet rollers 5a to 6b for drawing the plurality of multifilament yarns Y. The bottom wall 25 extends substantially parallel to the rotational axis direction of the godet roller 5a with which the plurality of multifilament yarns Y first contact. In other words, the bottom wall 25 is a flat portion substantially parallel to the direction of the rotation axis of the yarn width regulating guide 23 and the godet roller 5a. In this embodiment, since the godet rollers 5a to 6b are substantially parallel to each other, the bottom wall 25 is arranged with the arrangement direction of the plurality of multifilament yarns Y on the yarn width regulating guide 23 and the rotation axis direction of the godet rollers 5a to 6b. It is almost parallel. The width W1 of the bottom wall 25 is (W2 / 2) ≦ W1 ≦ W2, where W2 is the yarn width in a state where a plurality of filaments Y1 constituting one multifilament yarn Y are arranged without overlapping.

  For example, when the multifilament yarn Y is a polyester yarn 75d / 36f, the yarn width W2 before drawing is about 1.0 to 1.5 mm. Therefore, the width W1 of the bottom wall 25 may be about 0.75 to 1.0 mm. Moreover, the pitch (distance between the centers of the recessed parts 24) P of the recessed parts 24 is 2.0-4.0 mm, for example. The recess 24 has side walls 26 extending from both ends of the bottom wall 25 in a direction substantially orthogonal to the bottom wall 25. The side wall 26 is continuous with the bottom wall 25 by a curved surface. The pitch between the guide members 30 of the yarn dividing guide 22 (interval between the centers of the guide members 30) is preferably set to be substantially the same as the pitch between the concave portions 24 of the yarn width regulating guide 23.

  The yarn width regulating guide 23 is arranged so that the multifilament yarn Y travels in the recess 24 so that the yarn width W of the multifilament yarn Y widened by the widening guide 21 does not spread too much. To regulate. That is, since the width of the bottom wall 25 of the recess 24 is W1, the yarn width W of the multifilament yarn Y is regulated to approximately W1 by the yarn width regulating guide 23. For example, as shown in FIG. 3B, when the filament Y1 is separated in the multifilament yarn Y, when the multifilament yarn Y travels in the recess 24, the multifilament yarn Y contacts the bottom wall 25 and the side wall 26. By doing so, the yarn width W is narrowed. In other words, the filaments Y1 are brought closer to each other by the recess 24, and the yarn width W of the multifilament yarn Y is narrowed to substantially the width W1.

  As described above, the yarn width W of the multifilament yarn Y is regulated by the yarn width regulation guide 23 so that the yarn width W of the multifilament yarn Y widened by the widening guide 21 is not excessively widened. Thereby, since some filaments Y1 leave | separate from the multifilament yarn Y and do not contact the godet rollers 5a-6b, generation | occurrence | production of the filament yarn breakage and fluff is suppressed.

  The arrangement direction of the plurality of multifilament yarns Y on the widening guide 21 and the yarn width regulation guide 23 and the rotation of the godet roller 5a at least among the godet rollers 5a to 6b at which the plurality of multifilament yarns Y first contact. The axial direction is substantially parallel. Accordingly, a plurality of multifilament yarns Y whose widths are restricted and whose widths are restricted can be widened and run on the godet roller 5a while maintaining the state where the yarn widths are restricted. Each filament Y1 can be heated uniformly, and the filament Y1 can be prevented from being broken or fluffed.

  The yarn width regulating guide 23 is a Soroban ball-shaped guide (axisymmetric roller guide) having a plurality of concave portions 24 through which a plurality of multifilament yarns Y respectively travel. Therefore, the yarn width W of the multifilament yarn Y can be regulated with a simple configuration.

  Each of the plurality of recesses 24 has a bottom wall 25 that extends at least approximately in parallel with the rotational axis direction of the godet roller 5a with which the plurality of multifilament yarns Y first contact among the godet rollers 5a to 6b. Accordingly, since the plurality of filaments Y1 are easily dispersed and arranged without overlapping with a part of the bottom wall 25 of the recess 24, local overlap between the filaments Y1 is reduced.

  The width W1 of the bottom wall 25 is (W2 / 2) ≦ W1 ≦ W2. That is, the width W1 of the bottom wall 25 is not less than half the yarn width W2 in a state where the plurality of filaments Y1 constituting one multifilament yarn Y are arranged without overlapping, and is not more than the yarn width W2. Therefore, since the multifilament yarn Y that has traveled through the concave portion 24 has two or less stages at most when the filaments Y1 overlap, the balance between the uniform contact with the godet rollers 5a to 6b and the convergence of the filament Y1 can be balanced. It becomes a state.

  Moreover, the recessed part 24 has the side wall 26 continuous with the bottom wall 25 and a curved surface. For this reason, the filament Y1 is prevented from accumulating at the corner of the recess 24 and becoming a lump.

  The yarn dividing guide 22 divides a plurality of multifilament yarns Y into multifilament yarn Y units upstream of the yarn width regulating guide 23, and the pitch between the multifilaments is regulated in advance. Accordingly, it is possible to prevent the multifilament yarns whose yarn width W has been widened by the widening guide 21 from becoming hardened again on the yarn width regulating guide 23.

  In addition, since the pitch between the plurality of multifilament yarns Y on the yarn dividing guide 22 is substantially the same as the pitch between the plurality of recesses 24 of the yarn width regulating guide 23, the multifilament yarn Y is formed on the yarn width regulating guide 23. The multifilament yarn Y can be prevented from concentrating on the yarn width regulating guide 23 without being concentrated on one side of the recess 24.

  Further, the widening guide 21 is a bar-shaped guide that contacts the multifilament yarn Y and squeezes the multifilament yarn Y. Therefore, the yarn width W of the multifilament yarn Y can be widened with a simple configuration.

  Next, a second embodiment of the present invention will be described. Components having the same configuration as in the first embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate. FIG. 5 is a front view showing a configuration of a take-up winder equipped with a spinning stretcher according to a second embodiment of the present invention. The spinning winder 101 according to the second embodiment is different from the spinning winder 1 according to the first embodiment in the configuration of the spinning stretcher.

  The spinning and drawing apparatus 102 according to the second embodiment includes a first godet roller 103, a first separate roller 104, a second godet roller 105, a second separate roller 106, heat insulation boxes 107 and 108, a yarn dividing guide 22, a widening guide 21, and a yarn. A width regulation guide 23 and the like are provided.

  Similar to the first godet rollers 5a and 5b, the first godet roller 103 is a preheating godet roller for heating the multifilament yarn Y before stretching. The first godet roller 103 is paired with a first separate roller 104 disposed above. The second godet roller 105 is a heat fixing godet roller for heat fixing the stretched multifilament yarn Y, similarly to the second godet rollers 6a and 6b. The second godet roller 105 is paired with a second separate roller 106 disposed below. The first separate roller 104 and the second separate roller 106 are drive rollers driven by a drive motor (not shown) or non-driven driven rollers, and the diameter is, for example, about that of the first godet roller 103 and the second godet roller 105. 1/2.

  The plurality of multifilament yarns Y are wound around the first godet roller 103 and the first separate roller 104 upstream and then wound around the second godet roller 105 and the second separate roller 106 downstream.

  The heat retaining box 107 accommodates the first godet roller 103 and the first separate roller 104. A slit 109 for introducing the multifilament yarn Y into the heat insulation box 107 is provided at the left end of the upper surface of the heat insulation box 107. In addition, a slit 110 for leading the multifilament yarn Y from the heat insulation box 107 to the outside is provided at the right end of the upper surface of the heat insulation box 107. The heat retaining box 108 accommodates the second godet roller 105 and the second separate roller 106. A slit 111 for introducing the multifilament yarn Y into the heat insulation box 108 is provided at the left end of the lower surface of the heat insulation box 108. In addition, a slit 112 for leading the multifilament yarn Y from the heat insulation box 108 to the outside is provided at the right end of the lower surface of the heat insulation box 107.

  The widening guide 21 is provided outside the heat retaining box 107 and above the first godet roller 103. The yarn width regulating guide 23 is provided outside the heat retaining box 107 and above the first godet roller 103 and below the widening guide 21. The distance from the widening guide 21 to the yarn width regulating guide 23 is, for example, about 10 to 30 cm.

  The embodiment of the present invention has been described above. However, the form to which the present invention can be applied is not limited to the above-described embodiment, and may be changed as appropriate without departing from the spirit of the present invention, as exemplified below. Can be added.

  In the above-described embodiment, the yarn width regulating guide 23 is a Soroban ball-shaped driven roller (axisymmetric rotating roller guide) in which a plurality of recesses 24 are arranged in the rotation axis direction. Not limited to this, the yarn width regulating guide 23 may be a fixed abacus ball guide that does not rotate (axisymmetric non-rotating roller guide). For example, as shown in FIG. 6, the yarn width regulating guide 23 includes a flat plate (that is, comb teeth) in which a plurality of concave portions 24 are arranged in the direction of the rotation axis of the godet roller 5 a with which a plurality of multifilament yarns Y first contact. Shaped guide). The multifilament yarn runs through the recess 24 from above to below.

  In the above-described embodiment, the yarn separation guide 22 is provided separately from the widening guide 21 upstream of the widening guide 21. For example, as illustrated in FIG. 7, the yarn dividing guide 22 may be provided integrally with the widening guide 21. Further, the yarn dividing guide 22 may be provided on the downstream side of the widening guide 21.

  In the above-described embodiment, the widening guide 21 and the yarn width regulating guide 23 are provided separately. For example, the widening guide 21 may be provided with a convex portion that regulates the yarn width of the multifilament yarn Y, and the widening guide 21 and the yarn width regulating guide 23 may be integrated.

  In the above-described embodiment, each of the plurality of recesses 24 has the bottom wall 25 extending substantially parallel to the arrangement direction of the plurality of multifilament yarns Y and the rotation axis direction of the godet rollers 5a to 6b. Not only this but the recessed part 24 does not need to have the bottom wall 25 (flat part substantially parallel to a rotating shaft direction). For example, the shape of the concave portion is not limited to that shown in the above-described embodiment, and the spread of the multifilament yarn Y can be sufficiently ensured, such as a curved parabola at the bottom and a curved U shape at the bottom. If it is.

  In the above-described embodiment, the widening guide 21 is a rod-shaped (cylindrical) non-rotating guide. Not only this but the widening guide may be a rod-like driven roller that rotates. Further, the widening guide may have a shape other than a rod shape. Further, the widening guide 21 is provided inside the heat insulation box 7 in the first embodiment. Not limited to this, it may be provided outside the heat insulation box 7. Moreover, in 2nd Embodiment, it is provided in the exterior of the heat retention box 108 with the yarn width regulation guide 23. FIG. However, the widening guide 21 may be provided inside the heat insulation box 108. In the case of the modification of the second embodiment, the yarn width regulating guide 23 is also provided inside the heat retaining box 108 together with the widening guide 21. In the first embodiment described above, the yarn width regulation guide 23 is provided inside the heat insulation box 7, but may be provided outside together with the widening guide 21.

  In the above-described embodiment, the first godet rollers 5a, 5b, 103 and the second godet rollers 6a, 6b, 105 are heating rollers. However, the present invention is not limited to this, and at least one heating roller may be used. The widening guide 21 widens the width of one multifilament yarn composed of a plurality of filaments before being wound around the heating roller, and the yarn width regulating guide 23 is a multifilament yarn widened by the widening guide 21. It is sufficient that the yarn width of the multifilament yarn is regulated so that the yarn width of the yarn does not become too large.

  In the above-described embodiment, the first godet roller on which the multifilament yarn Y before stretching travels is a heating roller. Not limited to this, the type of yarn to be produced, such as nylon that can be drawn at normal temperature, can be used as a non-heated roller without a heater, or when equipped with a heater, the heater can be turned off and used in an unheated state. You can also do it.

  In the first embodiment described above, two first godet rollers 5a and 5b for preheating and two second godet rollers 6a and 6b for heat fixation are provided, for a total of four godet rollers 5a to 6b. However, the number, the arrangement, the diameter, the number of pre-heating and heat fixing godet rollers, and the like can be appropriately changed according to the type of multifilament yarn to be produced.

  In the second embodiment, the first godet roller 103 and the first separate roller 104, the second godet roller 105 and the second separate roller 106 are set as a set, and a plurality of multifilament yarns Y are wound around. Not only this but the 1st separate roller 104 is not used, but it can also be set as the structure which winds several multifilament yarn Y between the 1st godet rollers 103 by making two 1st godet rollers 103 into a set. Similarly, the second godet roller 105 can be used as a set of two without using the second separate roller 106.

  In the above-described embodiment, the godet rollers 5a to 6b and the godet rollers 105 and 106 are substantially parallel in the rotation axis direction. Not only this but the godet rollers 5a-6b and the godet rollers 105 and 106 do not need to be substantially parallel in a rotating shaft direction.

DESCRIPTION OF SYMBOLS 1,101 Spin winding machine 2,102 Spinning drawing apparatus 3 Yarn winding apparatus 4 Spinning apparatus 5a, 5b, 103 1st godet roller (roller)
6a, 6b, 105 Second godet roller (roller)
21 Widening guide (widening means)
22 Thread separation guide (Thread separation means)
23 Thread width regulation guide (Thread width regulation means)
24 Concave portion 25 Bottom wall 26 Side wall Y Multifilament yarn Y1 Filament

Claims (6)

A spinning and stretching device for stretching each of a plurality of multifilament yarns spun from a spinning device,
A plurality of rollers including a heating roller for drawing the multifilament yarn;
Widening means for widening the width of one multifilament yarn composed of a plurality of filaments before being wound around the heating roller;
A yarn width regulating means for regulating the yarn width so that the yarn width spread by the widening means does not spread too much;
A yarn dividing means for dividing the plurality of multifilament yarns into the multifilament yarn units upstream of the yarn width regulating means on the yarn path;
Equipped with a,
The yarn width regulating means is a guide having a plurality of recesses in which the plurality of multifilament yarns respectively travel.
The spinning and drawing apparatus , wherein a pitch between the plurality of multifilament yarns on the yarn dividing unit is substantially the same as a pitch between the plurality of concave portions of the yarn width regulating unit .   An arrangement direction of the plurality of multifilament yarns on the widening means and the yarn width regulating means, and a rotation axis direction of the roller that the plurality of multifilament yarns first contact among the plurality of rollers. The spinning and drawing apparatus according to claim 1, which is substantially parallel to each other. Wherein the plurality of recesses of said yarn width regulating means, respectively, according to claim 1 or 2 characterized by having a rotational axis and a bottom wall extending substantially parallel to said rollers, wherein the plurality of multifilament yarns first contacts The spinning stretcher described in 1. Wherein the width of the bottom wall W1, when the plurality of filaments of the yarn width in the state aligned without overlap and W2, according to claim 3, characterized in that the (W2 / 2) ≦ W1 ≦ W2 Spinning and drawing equipment. The spinning stretcher according to claim 3 or 4 , wherein the concave portion further has a side wall continuous with the bottom wall on a curved surface. The spinning / drawing apparatus according to any one of claims 1 to 5 , wherein the widening means is a bar-shaped guide that contacts the multifilament yarn and squeezes the multifilament yarn.

Images