JP2015059278A - Yarn winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn winder capable of suppressing enlargement of an installation space.SOLUTION: A spinning machine 1 includes: at least two spinning units 1 that are arranged to adjoin along a predetermined direction D and wind a yarn to form a package; and at least one yarn splicing device 90 that splices yarns in each of the spinning units 1. The width of the yarn splicing device 90 in the predetermined direction D is equal to or smaller than the width of each of the spinning unit 1 in the predetermined direction D.

Description

  The present invention relates to a yarn winding machine.

  A yarn winding machine including a plurality of yarn winding units that winds a yarn to form a package is known. Such a yarn winding machine is provided with a yarn splicing device that joins the yarn on the supply side and the yarn on the package side when the yarn is cut to remove a yarn defect, for example. The yarn joining device may be provided in common to the plurality of yarn winding units by being configured to be movable between the plurality of yarn winding units (see, for example, Patent Document 1).

JP 2005-330596 A

  In the spinning machine (yarn winding machine) described in Patent Document 1, the yarn joining device has a width that spans three spinning units (yarn winding units). Therefore, the yarn joining device is moved to each of the yarn winding units arranged at both ends of the plurality of yarn winding units arranged in parallel along a predetermined direction, and the yarn joining is performed in each of the yarn winding units. Therefore, it is necessary to provide a space for protruding the yarn splicing device outside each of the yarn winding units.

  Then, an object of this invention is to provide the yarn winding machine which can suppress the expansion of installation space.

  The yarn winding machine of the present invention is arranged so as to be adjacent to each other along a predetermined direction, and at least two yarn winding units that wind the yarn to form a package, and at least perform piecing of the yarn in each of the yarn winding units One yarn joining device, and the width of the yarn joining device in the predetermined direction is equal to or less than the width of each yarn winding unit in the predetermined direction.

  In the yarn winding machine, when the yarn joining device performs the yarn joining in each of the yarn winding units arranged at both ends in the predetermined direction among the plurality of yarn winding units arranged in parallel along the predetermined direction, The yarn splicing device does not protrude from the outside of each yarn winding unit. Therefore, according to this yarn winding machine, the expansion of the installation space can be suppressed.

  The yarn winding machine of the present invention includes at least three yarn winding units and at least two yarn joining devices, and each of the at least two yarn joining devices extends along a predetermined direction of at least three yarn winding units. The yarn splicing may be performed in each of at least two yarn winding units arranged adjacent to each other. In this case, two different yarn joining devices can be simultaneously positioned in each of the two yarn winding units arranged adjacent to each other, and further, the yarn joining of each yarn in each of the two yarn winding units. Can also be implemented.

  In the yarn winding machine of the present invention, the width of the yarn joining device in the predetermined direction may be 210 mm or greater and 240 mm or less. In this case, a configuration in which the width of the yarn joining device is equal to or less than the width of each of the yarn winding units can be appropriately realized.

  In the yarn winding machine of the present invention, one yarn joining device may perform yarn joining in each of 2 to 15 yarn winding units arranged so as to be adjacent to each other along a predetermined direction. In the yarn winding machine of the present invention, one yarn joining device may perform yarn joining in each of 2 to 10 yarn winding units arranged so as to be adjacent to each other along a predetermined direction. In the yarn winding machine of the present invention, one yarn joining device is provided in common to only two yarn winding units arranged adjacent to each other along a predetermined direction, and each of the two yarn winding units is provided. The yarn may be spliced at. In these cases, even if the number of times of yarn splicing in each yarn winding unit is small, the number of yarn splicing devices required for yarn splicing is less likely to be excessive than in the case where a yarn splicing device is provided for each yarn winding unit. In addition, even if the number of yarn splicing in each yarn winding unit is large, the number of yarn splicing devices required for yarn splicing is greater than when the yarn splicing device is commonly provided for 20 to 40 yarn winding units. It is hard to run out. Therefore, it is possible to suppress both a decrease in cost performance and a decrease in package productivity.

  When the yarn winding machine of the present invention includes at least two yarn joining devices, the yarn winding machine may further include a regulator that is provided in common to at least two yarn joining devices and adjusts the air pressure required in the yarn joining device. Good. In this case, since it is not necessary to provide a regulator in the yarn joining device, the configuration of the yarn joining device can be simplified.

  In the yarn winding machine of the present invention, the yarn joining device may have a drive unit for moving along a predetermined direction. In this case, the yarn joining device can be easily moved to an appropriate position.

  In the yarn winding machine of the present invention, the yarn joining device may have a yarn joining portion that performs yarn joining in each of the yarn winding units. In this case, piecing of each yarn can be performed appropriately.

  In the yarn winding machine of the present invention, the yarn joining portion may be provided so as to be able to advance and retreat with respect to the yarn traveling path in each of the yarn winding units. In this case, when the yarn is not spliced, the yarn splicing portion is retracted so as not to interfere with each portion, and when splicing each yarn, on the traveling path of each yarn or in the vicinity of the traveling path of each yarn, The splicing of each yarn can be performed appropriately.

  In the yarn winding machine of the present invention, the yarn joining device may further include a yarn transporting unit that transports the yarn to the yarn joining unit when performing yarn splicing in each of the yarn winding units. In this case, each yarn can be appropriately conveyed to the yarn joining portion at the time of yarn joining.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the yarn winding machine which can suppress the expansion of installation space.

1 is a side view of a spinning unit in a spinning machine that is a yarn winding machine according to an embodiment of the present invention. FIG. 2 is a front view of a pair of spinning units in the spinning machine of FIG. 1. FIG. 2 is a front view of a pair of spinning units in the spinning machine of FIG. 1. FIG. 2 is a side view of a spinning unit during a yarn splicing operation in the spinning machine of FIG. 1. FIG. 2 is a side view of a spinning unit during a yarn splicing operation in the spinning machine of FIG. 1. FIG. 2 is a side view of a spinning unit during a yarn splicing operation in the spinning machine of FIG. 1. FIG. 2 is a side view of a spinning unit during a yarn splicing operation in the spinning machine of FIG. 1.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same or an equivalent part, and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 1, 2 and 3, the spinning machine (yarn winding machine) 10 includes a plurality of spinning units (yarn winding units) 1 and a machine base control device (not shown). Yes. The plurality of spinning units 1 are arranged so as to be adjacent along the predetermined direction D. The machine control device centrally manages each spinning unit 1. 2 and 3, a pair of first spinning unit (yarn winding unit) 1a and second spinning unit (yarn winding unit) which are arranged adjacent to each other in the predetermined direction D among the plurality of spinning units 1. ) Only 1b is shown. However, actually, a plurality of pairs of the first spinning unit 1 a and the second spinning unit 1 b are arranged in parallel along the predetermined direction D via the frame 17. In the present embodiment, the first spinning unit 1a and the second spinning unit 1b are collectively referred to as the spinning unit 1. 2 and 3, a part of the configuration is omitted in each of the first spinning unit 1a and the second spinning unit 1b.

  As shown in FIG. 1, the spinning unit 1 generates a yarn Y by spinning the fiber bundle F sent from the draft device 2 by the spinning device 3, and winds the generated yarn Y by the winding device 4. To form a package P. In the present embodiment, the upstream in the traveling direction of the yarn Y is simply referred to as upstream, and the downstream in the traveling direction of the yarn Y is simply referred to as downstream.

  The spinning unit 1 is provided with a draft device 2, a spinning device 3, a yarn storage device 5, a yarn monitoring device 6, and a winding device 4 in order from the upstream side along the traveling path of the yarn Y. Each part of the spinning unit 1 is controlled by a unit controller (not shown) provided for each spinning unit 1. The pair of first spinning unit 1a and second spinning unit 1b share one yarn splicing device 90 (see FIGS. 2 and 3). The yarn joining device 90 is located at a yarn joining position (details will be described later) in each of the first spinning unit 1a and the second spinning unit 1b, and performs yarn joining.

  The draft device 2 has four pairs of draft rollers 21, 22, 23 and 24. The four pairs of draft rollers 21, 22, 23, and 24 are a back roller pair, a third roller pair, a middle roller pair, and a front roller pair, respectively, in order from the upstream side along the traveling path of the yarn Y. The draft roller pair 21 includes a top roller 21a that is a driven roller and a bottom roller 21b that is a driving roller. The draft roller pair 22 includes a top roller 22a that is a driven roller and a bottom roller 22b that is a drive roller. The draft roller pair 23 includes a top roller 23a that is a driven roller and a bottom roller 23b that is a driving roller. The draft roller pair 24 includes a top roller 24a that is a driven roller and a bottom roller 24b that is a driving roller. An apron belt 25 is placed on each of the top roller 23a and the bottom roller 23b constituting the draft roller pair 23 which is a middle roller pair. The draft device 2 conveys the sliver S supplied from the sliver case while being sandwiched between the four pairs of draft rollers 21, 22, 23, and 24, thereby extending the sliver S and generating a fiber bundle F. 2 and 3, the top rollers 21a, 22a, 23a, 24a of the draft device 2 of the first spinning unit 1a and the top rollers 21a, 22a, 23a, 24a of the draft device 2 of the second spinning unit 1b are used. Is supported by a draft cradle 26 provided in common to the first spinning unit 1a and the second spinning unit 1b.

  As shown in FIG. 1, the spinning device 3 generates a yarn Y by spinning the fiber bundle F generated by the draft device 2 with a swirling air flow. Specifically (however, not shown), the spinning device 3 includes a fiber guide portion, a swirl flow generation nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle F sent from the draft device 2 to the spinning chamber in the spinning device 3. The swirl flow generating nozzle is disposed around the path of the fiber bundle F and generates a swirl air flow in the spinning chamber. Thereby, in the spinning chamber, the fiber end is reversed and swirled. The hollow guide shaft body guides the spun yarn Y from the spinning chamber to the outside of the spinning device 3. The yarn Y generated by the spinning device 3 is nipped by the delivery roller 7 and the nip roller 8 and sent out to the yarn storage device 5 side. The delivery roller 7 and the nip roller 8 may be omitted, and the yarn Y may be pulled out from the spinning device 3 by the yarn storage device 5.

  The yarn storage device 5 includes a yarn storage roller 51, a drive motor 52, and a yarn hooking member 53. The drive motor 52 rotates the yarn accumulating roller 51. The yarn hooking member 53 winds the yarn Y around the yarn accumulating roller 51. The yarn storage device 5 temporarily stores the yarn Y by winding the yarn Y around the yarn storage roller 51. In the spinning unit 1, the direction of the traveling path of the yarn Y is greatly changed between the upstream side and the downstream side of the yarn storage device 5. Specifically, on the upstream side of the yarn storage device 5, the yarn Y is caused to travel substantially horizontally from the front side toward the yarn storage device 5, and on the downstream side of the yarn storage device 5, the front side and the upper side from the yarn storage device 5. The yarn Y is caused to travel diagonally toward the. In the present embodiment, the side where the operator passage is located with respect to the spinning machine 10 is referred to as a front side, and the opposite side is referred to as a rear side. The upper side in the machine base height direction is simply referred to as the upper side, and the lower side in the machine base height direction is simply referred to as the lower side.

  The yarn hooking member 53 is supported so as to be rotatable relative to the yarn accumulating roller 51. A permanent magnet is attached to one of the yarn accumulating roller 51 and the yarn hooking member 53, and a magnetic hysteresis material is attached to the other. By these magnetic means, torque is generated against the yarn hooking member 53 rotating relative to the yarn accumulating roller 51. Therefore, the yarn hooking member 53 rotates relative to the yarn accumulating roller 51 only when a force exceeding the torque is applied to the yarn hooking member 53 (when a tension of a predetermined value or more is applied to the yarn Y). The yarn Y wound around the yarn accumulating roller 51 is unwound. When a force exceeding the torque is not applied to the yarn hooking member 53, the yarn hooking member 53 rotates integrally with the yarn accumulating roller 51, and the yarn Y is wound around the yarn accumulating roller 51.

  In this way, the yarn storage device 5 unwinds the yarn Y when the tension of the yarn Y increases on the downstream side of the yarn storage device 5, and the tension of the yarn Y decreases on the downstream side of the yarn storage device 5 (thread Y). The thread Y is stored). Thereby, the yarn accumulating device 5 can eliminate the slackness of the yarn Y and apply an appropriate tension to the yarn Y. Furthermore, the yarn storage device 5 absorbs fluctuations in the tension of the yarn Y on the downstream side of the yarn storage device 5, and the fluctuations in the tension affect the traveling of the yarn Y on the upstream side of the yarn storage device 5. Can be prevented.

  A first guide 11 is disposed in the vicinity of the upstream side of the yarn storage device 5. The first guide 11 guides the yarn Y to the yarn storage device 5. A pair of second guide 12 and third guide 13 are disposed in the vicinity of the downstream side of the yarn accumulating device 5. The pair of second guide 12 and third guide 13 stabilize the behavior of the yarn Y unwound from the yarn storage device 5. The first guide 11 and the second guide 12 are movable to draw the yarn Y to the yarn storage device 5 when performing yarn splicing or the like.

  As shown in FIGS. 1, 2 and 3, one yarn splicing device 90 is provided in common for only one pair of the first spinning unit 1a and the second spinning unit 1b. The yarn joining device 90 performs yarn joining of the yarn Y in each of the first spinning unit 1a and the second spinning unit 1b. That is, when the yarn Y is split between the spinning device 3 and the package P for some reason in the first spinning unit 1a, the yarn joining device 90 has a first yarn joining position in the first spinning unit 1a. In SP1 (position indicated by a solid line in FIG. 2), the yarn Y on the spinning device 3 side and the yarn Y on the package P side are joined. When the yarn Y is split between the spinning device 3 and the package P for some reason in the second spinning unit 1b, the yarn joining device 90 has a second yarn joining position SP2 ( The yarn Y on the spinning device 3 side and the yarn Y on the package P side are joined at the position indicated by a solid line in FIG.

  The yarn joining device 90 is provided so as to be movable along a predetermined direction D in a region between the first frame 17a and the second frame 17b, and between the first frame 17a and the second frame 17b. Movement beyond the territory is restricted. The first frame 17a is erected along the end of the first spinning unit 1a opposite to the second spinning unit 1b, and supports at least a part of the first spinning unit 1a (winding device 4 and the like). doing. The second frame 17b is erected along the end of the second spinning unit 1b opposite to the first spinning unit 1a, and supports at least a part of the second spinning unit 1b (winding device 4 and the like). doing.

  In other words, the yarn splicing device 90 defines a region between the end of the first spinning unit 1a opposite to the second spinning unit 1b and the end of the second spinning unit 1b opposite to the first spinning unit 1a. It can move along the direction D. However, the yarn joining device 90 exceeds the region between the opposite end of the second spinning unit 1b in the first spinning unit 1a and the opposite end of the first spinning unit 1a in the second spinning unit 1b. Restricted movement. The yarn joining device 90 is movable in the predetermined direction D between the first yarn joining position SP1 in the first spinning unit 1a and the second yarn joining position SP2 in the second spinning unit 1b. This is because the width W1 of the joining device 90 is equal to or less than the width W2 of each of the first spinning unit 1a and the second spinning unit 1b in the predetermined direction D. The width W1 of the yarn joining device 90 in the predetermined direction D is, for example, not less than 210 mm and not more than 240 mm. The width W2 of each of the first spinning unit 1a and the second spinning unit 1b in the predetermined direction D is, for example, not less than 215 mm and not more than 270 mm.

  In the present embodiment, the width W <b> 1 is “along the predetermined direction D” in the smallest rectangle in which one entire yarn joining device 90 can be accommodated when viewed from a direction perpendicular to the predetermined direction D (for example, when viewed from the front side). The length of the edge ". Further, the width W2 is “the length of the side along the predetermined direction D” in the smallest rectangle in which the entire spinning unit 1 can be accommodated when viewed from a direction perpendicular to the predetermined direction D (for example, when viewed from the front side). That's it. However, when it is assumed that the yarn joining device 90 is simultaneously positioned in each of the two spinning units 1 arranged adjacent to each other, the width W1 is two yarn joining devices 90 as viewed from the direction perpendicular to the predetermined direction D. Can be regarded as “width in the predetermined direction D” of a portion (a portion not overlapping) of one yarn splicing device 90 excluding a portion overlapping each other. Further, the width W2 may be regarded as a value obtained by dividing the distance between the inner part of the first frame 17a and the inner part of the second frame 17b by the number of spinning units 1 existing between them (two in this embodiment). The distance between the center portion of the width of the first frame 17a and the center portion of the width of the second frame 17b is regarded as a value obtained by dividing the distance by the number of spinning units 1 existing between them (two in this embodiment). You can also Furthermore, the width W2 can also be regarded as a range taken by a predetermined length on both sides in the predetermined direction D from the traveling path of the yarn Y. In this case, the travel path of the yarn Y may or may not pass through the center of the width W2.

  The yarn joining device 90 includes a yarn joining portion 91, an upstream yarn conveying portion (yarn conveying portion) 92, a downstream yarn conveying portion (yarn conveying portion) 93, a carriage body 97, a driving portion 98, and a control portion. (Not shown). The carriage body 97 is movable along a pair of rails 18a and 18b spanned between the first frame 17a and the second frame 17b. Specifically, the carriage body 97 is provided with a guide roller 94, a driven roller 95, and a driving roller 96. The guide roller 94 is rotatable in a state of being engaged with a groove provided in the upper rail 18a. The driven roller 95 is rotatable while being in contact with the upper rail 18a from the front side. The driving roller 96 is rotatable in a state where the driving roller 96 is in contact with the lower rail 18b from the front side. The drive roller 96 is rotated by a drive unit 98 that is a drive motor mounted on the carriage body 97. The control unit controls operations of the yarn joining unit 91, the upstream yarn conveyance unit 92, the downstream yarn conveyance unit 93, and the driving unit 98.

  The yarn splicing portion 91 is a splicer that performs yarn splicing in each of the first spinning unit 1a and the second spinning unit 1b by twisting the yarn Y on the spinning device 3 side and the yarn Y on the package P side by a swirling air flow. Device. However, the yarn joining portion 91 is not limited to the splicer device, and may be, for example, a mechanical knotter.

  The yarn joining portion 91 can advance and retreat with respect to the traveling path of the yarn Y in the first spinning unit 1a, and can advance and retract with respect to the traveling path of the yarn Y in the second spinning unit 1b. Attached to the carriage body 97. When the yarn joining device 90 is located at the first yarn joining position SP1, the yarn joining portion 91 is advanced on the traveling path of the yarn Y of the first spinning unit 1a or in the vicinity of the traveling path of the yarn Y, Yarn splicing is performed in one spinning unit 1a. When the yarn joining device 90 is located at the second yarn joining position SP2, the yarn joining portion 91 is advanced on the traveling path of the yarn Y of the second spinning unit 1b or in the vicinity of the traveling path of the yarn Y. Two yarns are spliced in the spinning unit 1b. When the yarn joining device 90 is located at the first standby position WP1 (position indicated by a two-dot chain line in FIG. 2), the yarn joining device 90 is moved to the second standby position WP2 (two-dot chain line in FIG. 3). And when moving along the predetermined direction D to the yarn joining device 90 or on the traveling paths of the respective yarns Y of the first spinning unit 1a and the second spinning unit 1b. The vehicle is moved backward from the vicinity of the Y travel route.

  The upstream yarn conveyance unit 92 conveys the yarn Y on the spinning device 3 side to the yarn joining unit 91 when the yarn joining unit 91 performs yarn joining in each of the first spinning unit 1a and the second spinning unit 1b. The upstream-side yarn conveyance unit 92 is configured in a pipe shape, and is attached to the carriage body 97 so as to be rotatable upward and downward about the base end portion 92a. The upstream-side yarn conveyance unit 92 is rotated downward about the base end portion 92a, so that the tip end portion 92b is positioned in the vicinity of the downstream side of the delivery roller 7 and the nip roller 8, and the spinning device 3 side is moved by the suction air flow. Catch the yarn Y. Then, the upstream-side yarn conveyance section 92 conveys the yarn Y on the spinning device 3 side to the yarn joining section 91 by rotating upward about the base end portion 92a. When the yarn Y on the spinning device 3 side is captured and conveyed by the upstream yarn conveying unit 92, the delivery roller 7 and the nip roller 8 may be kept in contact with each other, or the delivery roller 7 and the nip roller 8 may be separated from each other. May be.

  The downstream-side yarn conveyance unit 93 conveys the yarn Y on the package P side to the yarn joining unit 91 when the yarn joining unit 91 performs yarn joining in each of the first spinning unit 1a and the second spinning unit 1b. The downstream-side yarn conveyance unit 93 is configured in a pipe shape, and is attached to the carriage body 97 so as to be rotatable upward and downward about the base end portion 93a. The downstream-side yarn conveyance unit 93 is rotated upward about the base end portion 93a, thereby positioning the tip end portion 93b in the vicinity of the upstream side of the winding device 4, and the yarn Y on the package P side by the suction air flow. To capture. The downstream-side yarn conveyance unit 93 conveys the yarn Y on the package P side to the yarn joining unit 91 by rotating downward about the base end portion 93a.

  The yarn joining portion 91 is advanced and retracted with respect to the traveling path of the yarn Y by a drive motor (not shown). The upstream-side yarn conveyance unit 92 and the downstream-side yarn conveyance unit 93 are connected by a connecting mechanism such as a cam, and a drive motor (commonly provided for the upstream-side yarn conveyance unit 92 and the downstream-side yarn conveyance unit 93). (Not shown) and rotated upward and downward. In addition, you may provide a drive motor with respect to the upstream yarn conveyance part 92 and the downstream yarn conveyance part 93 separately. Further, the yarn joining portion 91, the upstream yarn conveying portion 92, and the downstream yarn conveying portion 93 may be driven by one drive motor.

  The upstream-side yarn conveyance unit 92 and the downstream-side yarn conveyance unit 93 are connected to the suction duct 19 to generate a suction air flow (see FIG. 1). The suction duct 19 extends over all the spinning units 1 along a pair of rails 18a and 18b. The suction duct 19 is provided with a shutter valve (not shown) so as to correspond to each spinning unit 1. The shutter valve provided in the suction duct 19 so as to correspond to the first spinning unit 1a is opened and provided in the yarn joining device 90 only when the yarn joining device 90 is located at the first yarn joining position SP1. Connected to the suction connection portion. As a result, a suction air flow flows from the upstream yarn conveyance portion 92 and the downstream yarn conveyance portion 93 toward the suction duct 19. The shutter valve provided in the suction duct 19 so as to correspond to the second spinning unit 1b is opened and provided in the yarn joining device 90 only when the yarn joining device 90 is located at the second yarn joining position SP2. Connected to the suction connection portion. As a result, a suction air flow flows from the upstream yarn conveyance portion 92 and the downstream yarn conveyance portion 93 toward the suction duct 19.

  In the yarn joining portion 91, an air flow is generated by being connected to an air pipe (tube) (not shown) branched from a jet duct (not shown) through which a compressed air flow flows. The jet duct extends over all spinning units 1 along a pair of rails 18a, 18b. When the yarn joining portion 91 performs the yarn joining operation, an air pipe is connected to an unillustrated electromagnetic valve provided in the yarn joining device 90. By switching the electromagnetic valve from OFF to ON at an appropriate timing, the yarn joining portion 91 can inject an air flow for yarn joining.

  Instead of the above configuration, a shutter valve (not shown) may be provided in the injection duct so as to correspond to each spinning unit 1. The shutter valve provided in the jet duct so as to correspond to the first spinning unit 1a is opened and provided in the yarn joining device 90 only when the yarn joining device 90 is located at the first yarn joining position SP1. Connected to the connecting part for injection. As a result, a jet air flow flows from the jet duct toward the yarn joining portion 91. The shutter valve provided in the injection duct so as to correspond to the second spinning unit 1b is opened and provided in the yarn joining device 90 only when the yarn joining device 90 is located at the second yarn joining position SP2. Connected to the connecting part for injection. As a result, a jet air flow flows from the jet duct toward the yarn joining portion 91.

  The carriage main body 97 of the yarn joining device 90 is equipped with a valve that opens and closes the air flow generated by the yarn joining portion 91. However, the carriage main body 97 includes a valve that opens and closes an air flow generated in each of the upstream yarn conveyance portion 92 and the downstream yarn conveyance portion 93, and the yarn joining portion 91, the upstream yarn conveyance portion 92, and the downstream. A regulator that adjusts the pressure of the air flow generated in each of the side yarn conveying sections 93 is not mounted. A regulator (not shown) for adjusting the air pressure required in the yarn joining device 90 is provided on the machine base side (for example, in the prime mover box) in common with the plurality of yarn joining devices 90 provided in the spinning machine 10. It is done. Thereby, the carriage body 97 is reduced in size. In the case where the upstream yarn conveying section 92 generates a twisting air flow in addition to the suction air flow, a valve for opening and closing the air flow generated in the upstream yarn conveying section 92 is provided on the carriage body 97. May be installed.

  As shown in FIG. 1, the yarn monitoring device 6 monitors the thickness of the traveling yarn Y by an optical sensor. The yarn monitoring device 6 transmits a yarn defect detection signal to the unit controller when a yarn defect of the yarn Y (a portion where the thickness of the yarn Y is abnormal) is detected. When the unit controller receives the yarn defect detection signal, the unit controller operates the cutter 14 disposed in the vicinity of the upstream side of the yarn monitoring device 6 and causes the cutter 14 to cut the yarn Y. The yarn monitoring device 6 is not limited to an optical sensor, and may be, for example, a capacitive sensor. The yarn monitoring device 6 may detect foreign matter contained in the yarn Y. Instead of providing the cutter 14 separately from the yarn monitoring device 6, the yarn monitoring device 6 may include a cutter. Alternatively, the cutter 14 may be omitted, and the spinning operation by the spinning device 3 may be stopped to cut the yarn Y.

  The winding device 4 winds the yarn Y generated by the spinning device 3 to form a package P. The winding device 4 includes a cradle arm 41, a winding drum 42, and a yarn drawing device 43.

  The cradle arm 41 rotatably supports a winding tube T for winding the yarn Y. The cradle arm 41 is turnable upward and downward about the base end, and is urged to rotate downward about the base end. Thus, the cradle arm 41 can bring the package P into contact with the winding drum 42 with an appropriate pressure even when the yarn Y is wound around the winding tube T and the diameter of the package P gradually increases.

  The winding drum 42 rotates while being in contact with the outer peripheral surface of the winding tube T or the package P when a driving force of a driving motor (not shown) is transmitted. A traverse groove for traversing the yarn Y with a predetermined width is formed on the outer peripheral surface of the winding drum 42. Accordingly, the winding drum 42 can form the package P by winding the yarn Y around the winding tube T while traversing the yarn Y. In the present embodiment, since a driving motor for rotating the winding drum 42 is provided for each spinning unit 1, when the yarn Y on the package P side is pulled out in the spinning unit 1 in which yarn splicing or the like is required, the winding unit 42 is wound. The take-up drum 42 can be operated independently to rotate the package P in the reverse direction.

  The yarn drawing device 43 is disposed in the vicinity of the upstream side of the winding drum 42. When performing yarn splicing or the like, the yarn drawing device 43 generates an air flow so as to flow downward along the outer peripheral surface of the package P. Thereby, the yarn drawing device 43 can draw the yarn Y on the package P side from the package P, and guide the yarn Y on the package P side to the fourth guide 16 disposed in the vicinity of the upstream side of the yarn drawing device 43. . As described above, the yarn Y on the package P drawn by the yarn drawing device 43 is guided by the fourth guide 16, so that the downstream yarn conveying portion 93 of the yarn joining device 90 is centered on the base end portion 93a. By rotating upward, the tip end portion 93b is positioned in the vicinity of the upstream side of the fourth guide 16, and the yarn Y on the package P side can be captured by the suction air flow.

  Next, paying attention to the pair of first spinning unit 1a and second spinning unit 1b, the yarn splicing operation performed in the spinning machine 10 will be described.

  When the yarn Y is divided in the first spinning unit 1a (specifically, when yarn breakage occurs during winding of the package P or when the cutter 14 cuts the yarn Y), FIG. As shown in FIG. 4, the yarn joining device 90 moves to the first yarn joining position SP1 of the first spinning unit 1a and stops. At this time, as shown in FIG. 4, the winding operation of the package P by the winding device 4, the draft operation by the draft device 2, and the spinning operation by the spinning device 3 are stopped, and the first guide 11 and the second guide 12 are stopped. Moves from the vicinity of the yarn accumulating device 5 to above the delivery roller 7 and the nip roller 8. In the yarn joining device 90, the yarn joining portion 91 moves forward on the traveling path of the yarn Y of the first spinning unit 1a or in the vicinity of the traveling path of the yarn Y.

  Subsequently, the downstream-side yarn conveyance unit 93 rotates upward, and catches the yarn Y on the package P side that is drawn out by the yarn drawing device 43 and guided to the fourth guide 16. Then, as shown in FIG. 5, the downstream yarn conveying section 93 rotates downward and conveys the yarn Y on the package P side to the yarn joining portion 91. At this time, the package P is reversely rotated by the winding drum 42. Subsequently, as shown in FIG. 4, the upstream yarn conveying section 92 rotates downward and moves to a position where the yarn Y on the spinning device 3 side is captured. Then, the drafting operation by the drafting device 2 and the spinning operation by the spinning device 3 are resumed, and the yarn Y spun from the spinning device 3 is captured by the upstream yarn conveyance unit 92. Thereafter, as shown in FIG. 5, the upstream-side yarn conveyance unit 92 rotates upward and conveys the yarn Y on the spinning device 3 side to the yarn joining unit 91. Alternatively, the yarn Y on the spinning device 3 side may be captured and conveyed by the upstream yarn conveyance unit 92 first, and the yarn Y on the package P side may be captured and conveyed by the downstream yarn conveyance unit 93 later.

  Subsequently, as shown in FIG. 6, the first guide 11 moves to the vicinity of the upstream side of the yarn accumulating device 5 while capturing the yarn Y on the spinning device 3 side. Subsequently, as shown in FIG. 7, the second guide 12 moves to the vicinity of the downstream side of the yarn accumulating device 5 while capturing the yarn Y on the spinning device 3 side. Then, the yarn joining portion 91 performs yarn joining. As a result, the yarn Y can be hooked on the yarn hooking member 53 of the yarn storage device 5, and the yarn Y can be stored in the yarn storage roller 51 to eliminate the slack of the yarn Y that occurs during yarn splicing.

  When the yarn joining by the yarn joining unit 91 is completed, the winding operation of the package P by the winding device 4 is resumed. As shown in FIG. 2, the yarn joining device 90 moves to the first standby position WP1 close to the first yarn joining position SP1 of the first spinning unit 1a and stops.

  When the yarn Y is divided in the second spinning unit 1b, the yarn joining device 90 moves to the second yarn joining position SP2 of the second spinning unit 1b and stops as shown in FIG. Similarly to the above, the yarn splicing operation is performed in the second spinning unit 1b. When the yarn joining operation is completed, the yarn joining device 90 moves to the second standby position WP2 near the second yarn joining position SP2 of the second spinning unit 1b and stops. In this way, the yarn joining device 90 is not the center position that bisects the first yarn joining position SP1 and the second yarn joining position SP2, but from the center position to the yarn joining position side where the yarn joining operation has been performed. The position offset to is the standby position. Thereby, when it becomes necessary to perform the yarn splicing operation in both the first spinning unit 1a and the second spinning unit 1b, by moving from the standby position waiting at that time to a yarn splicing position close to it, The yarn splicing operation can be performed efficiently.

  As described above, in the spinning machine 10, the width W1 of the yarn joining device 90 in the predetermined direction D is equal to or less than the respective width W2 of the spinning unit 1 in the predetermined direction D. Therefore, when the yarn joining device 90 performs the yarn joining in each of the spinning units 1 arranged at both ends in the predetermined direction D among the plurality of spinning units 1 arranged in parallel along the predetermined direction D, The yarn joining device 90 does not protrude from the outside of each spinning unit 1. Therefore, according to the spinning machine 10, the expansion of the installation space can be suppressed.

  In the spinning machine 10, since the yarn splicing device 90 does not protrude outside the first spinning unit 1a and the second spinning unit 1b, an increase in the installation space of the spinning machine 10 can be suppressed. Further, two different yarn splicing devices 90 are provided to each of the two first spinning units 1a and 2b arranged adjacent to each other via the frame 17 (the first frame 17a or the second frame 17b). The yarns Y can be positioned simultaneously, and the yarn Y can be spliced in each of the first spinning unit 1a and the second spinning unit 1b.

  In the spinning machine 10, the width W1 of the yarn joining device 90 in the predetermined direction D is 210 mm or more and 240 mm or less. Accordingly, it is possible to appropriately realize a configuration in which the width W1 of the yarn joining device 90 is equal to or smaller than the width W2 of the spinning unit 1.

  In the spinning machine 10, one yarn splicing device 90 is provided in common for only the two first spinning units 1a and 2b arranged so as to be adjacent to each other along the predetermined direction D. The yarn Y is spliced in each of the two first spinning units 1a and 2b. As a result, even if the number of times of yarn joining in each spinning unit 1 is small, the number of yarn joining devices 90 required for yarn joining is unlikely to be excessive as compared with the case where the yarn joining device 90 is provided for each spinning unit 1. Even if the number of times of yarn splicing in each spinning unit 1 is large, the yarn splicing device 90 required for yarn splicing is compared to the case where the yarn splicing device 90 is provided in common for the spinning units 1 of 20 to 40. (Ie, the waiting time from when the splicing is required until the splicing is started is shortened). Therefore, according to the spinning machine 10, it is possible to suppress both a decrease in cost performance and a decrease in productivity of the package P.

  In the spinning machine 10, a regulator for adjusting the air pressure required in the yarn joining device 90 is provided in common to the plurality of yarn joining devices 90. Thereby, since it is not necessary to provide a regulator in the yarn joining device 90, the configuration of the yarn joining device 90 can be simplified. Furthermore, the weight of the yarn joining device 90 can be reduced to extend the life of the components constituting the yarn joining device 90, and the attachment and detachment with respect to the pair of rails 18a and 18b can be facilitated to improve maintenance. It becomes possible. In the spinning machine 10, since the moving distance of each yarn splicing device 90 is shortened, the selection range of the drive unit 98 is also widened. For example, as the drive unit 98, an actuator such as an air cylinder can be used instead of the drive motor.

  In the spinning machine 10, the yarn joining device 90 includes a drive unit 98 for moving along the predetermined direction D. Thereby, the yarn joining device 90 can be easily moved to an appropriate position.

  In the spinning machine 10, the yarn joining device 90 includes a yarn joining portion 91 that performs yarn joining in each of the first spinning unit 1a and the second spinning unit 1b. Thereby, yarn splicing can be appropriately performed in each of the first spinning unit 1a and the second spinning unit 1b.

  In the spinning machine 10, the yarn joining portion 91 can advance and retreat with respect to the traveling path of the yarn Y in the first spinning unit 1a, and can advance and retract with respect to the traveling path of the yarn Y in the second spinning unit 1b. It is provided so that. As a result, when the yarn is not spliced in each of the first spinning unit 1a and the second spinning unit 1b, the yarn splicing portion 91 is retracted so as not to obstruct each portion, and the first spinning unit 1a and the second spinning unit 1b. At the time of piecing each of the yarns, the piecing can be appropriately performed on the traveling path of the yarn Y or in the vicinity of the traveling path of the yarn Y. Further, when the yarn is not spliced in each of the first spinning unit 1a and the second spinning unit 1b, the upstream yarn conveying portion 92 and the downstream yarn are retracted by retracting the yarn joining portion 91 so as not to obstruct each portion. The degree of freedom of the operation trajectory of the transport unit 93 can be increased.

  In the spinning machine 10, the yarn joining device 90 conveys the yarn Y on the spinning device 3 side to the yarn joining portion 91 when the yarn joining is performed, and the package P side when performing the yarn joining. A downstream-side yarn conveyance unit 93 that conveys the yarn Y to the yarn joining unit 91 is provided. Thereby, at the time of yarn joining, each of the yarn Y on the spinning device 3 side and the yarn Y on the package P side can be appropriately conveyed to the yarn joining portion 91.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, one yarn joining device 90 may perform yarn joining in each of 2 to 15 spinning units 1 arranged so as to be adjacent to each other in the predetermined direction D. Furthermore, one yarn joining device 90 may perform yarn joining in each of 2 to 10 spinning units 1 arranged so as to be adjacent to each other in the predetermined direction D. In these cases, even if the number of yarn splicing in each spinning unit 1 is small, the number of yarn splicing devices 90 required for yarn splicing is less likely to be excessive than in the case where the yarn splicing device 90 is provided for each spinning unit 1. . Even if the number of times of yarn splicing in each spinning unit 1 is large, the yarn splicing device 90 required for yarn splicing is compared to the case where the yarn splicing device 90 is provided in common for the spinning units 1 of 20 to 40. (Ie, the waiting time from when the splicing is required until the splicing is started is shortened). Therefore, it is possible to suppress both a decrease in cost performance and a decrease in productivity of the package P.

  A suction mouth provided with a long suction port having a length corresponding to the length of the package P may be used as the downstream-side yarn conveyance unit 93. In that case, the thread drawing device 43 and the fourth guide 16 are not necessary. At least one of the upstream yarn conveyance unit 92 and the downstream yarn conveyance unit 93 may be provided on the spinning unit 1 side. In that case, the weight of the yarn joining device 90 can be further reduced.

  The yarn joining portion 91 is not limited to the one that can advance and retreat with respect to the traveling path of the yarn Y, and may be one fixed at a position where the yarn joining device 90 can perform the yarn joining. The yarn joining device 90 may be provided with a mechanism for operating the first guide 11 and the second guide 12. In addition, the yarn joining device 90 may be provided with a configuration necessary for the yarn joining operation. The draft cradle 26 may be provided for each spinning unit 1.

  The yarn winding machine of the present invention is not limited to a spinning machine, and may be another yarn winding machine such as an automatic winder. The first yarn winding unit and the second yarn winding unit of the present invention are not limited to the spinning unit, and may be other yarn winding units such as a winder unit. The first yarn winding unit and the second yarn winding unit of the present invention may be configured to run the yarn from the upper side to the lower side in the machine height direction.

  DESCRIPTION OF SYMBOLS 1 ... Spinning unit (yarn winding unit), 1a ... 1st spinning unit (yarn winding unit), 1b ... 2nd spinning unit (yarn winding unit), 10 ... Spinning machine (yarn winding unit), 90 ... Yarn splicing device, 91... Yarn joining section, 92... Upstream thread conveying section (yarn conveying section), 93. Downstream thread conveying section (yarn conveying section), 98... Driving section, D.

Claims (11)

At least two yarn winding units arranged adjacent to each other along a predetermined direction and winding the yarn to form a package;
At least one yarn splicing device for piecing the yarn in each of the yarn winding units,
The yarn winding machine, wherein a width of the yarn joining device in the predetermined direction is equal to or less than a width of each of the yarn winding units in the predetermined direction. At least three yarn winding units;
And at least two yarn joining devices,
Each of the at least two yarn joining devices performs the yarn joining of the yarn in each of at least two of the yarn winding units that are arranged adjacent to each other in the predetermined direction among the at least three yarn winding units. The yarn winding machine according to claim 1, which is performed.   The yarn winding machine according to claim 1 or 2, wherein a width of the yarn joining device in the predetermined direction is not less than 210 mm and not more than 240 mm.   The one yarn joining device performs yarn joining of the yarn in each of the yarn winding units of 2 to 15 arranged adjacent to each other in the predetermined direction. The yarn winding machine according to the item.   5. The yarn winding machine according to claim 4, wherein one yarn joining device performs yarn joining of each of the yarn winding units of 2 to 10 arranged adjacent to each other in the predetermined direction.   One yarn splicing device is provided in common to only the two yarn winding units arranged so as to be adjacent to each other in the predetermined direction, and each of the two yarn winding units has the yarn winding unit. The yarn winding machine according to any one of claims 1 to 3, which performs yarn splicing.   The apparatus according to claim 1, further comprising a regulator that is provided in common to at least two of the yarn joining devices when the at least two yarn joining devices are provided, and that adjusts an air pressure required in the yarn joining device. The yarn winding machine according to any one of the above.   The yarn winding machine according to any one of claims 1 to 7, wherein the yarn joining device has a drive unit for moving along the predetermined direction.   The yarn winding machine according to any one of claims 1 to 8, wherein the yarn joining device includes a yarn joining portion that performs the yarn joining of the yarn in each of the yarn winding units.   The yarn winding machine according to claim 9, wherein the yarn joining portion is provided so as to be able to advance and retreat with respect to a traveling path of the yarn in each of the yarn winding units.   11. The yarn winding machine according to claim 9, wherein the yarn joining device further includes a yarn conveying unit that conveys the yarn to the yarn joining unit when performing yarn joining of the yarn in each of the yarn winding units.

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