JP2012153476A - Yarn winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by eliminating the need to arrange a plurality of traverse detection sections, in a yarn winding device where drive of a package and a traverse of a yarn are independent of each other.SOLUTION: The yarn winding device 100 includes: a winding section 200 for winding a package 83; a traverse guide 17, driven independent from drive of the package 83, for traversing a yarn Y to be wound into the package 83; and a traverse detection section 70, arranged at a central part of a traverse width of the traverse guide 17, for detecting presence or absence of the yarn Y.

Description

  The present invention relates to a technique of a yarn winding device that winds a yarn as a package. More specifically, the present invention relates to a technique for detecting a traverse failure of a yarn winding device.

  In the yarn winding device, there is a problem that a defective package with poor shape and unraveling property is formed due to defective traverse of the yarn. The conventional yarn winding device is also provided with a traverse detection unit that detects a traverse defect of the yarn. For example, in a drum traverse type yarn winding device, a traverse detection unit is provided only at one of the left and right ends with respect to the center of the package (see, for example, Patent Document 1).

  Most of the traverse failures in the drum traverse type yarn winding device are (1) traverse failure in which the yarn is not traversed to both ends of the drum and traversed only at the center of the drum, and (2) the cross portion of the traverse groove ( The yarn crossing is poor at the branching portion, and the yarn is not traversed to one end of the drum, and the traverse failure is caused by turning back halfway.

  The traverse failure of (1) can be easily detected by providing a traverse detection unit only at either the left or right end because the yarn is not traversed to both ends of the drum. In the traverse failure of (2), the yarn may be traversed at either the left or right end of the drum. Even if the traverse detection unit is provided only at one end, the yarn is detected by the traverse detection unit. It may be done. However, in the case of the traverse failure of (2), the traverse cycle is shorter than the normal traverse cycle. For this reason, the traverse defect of the above (2) can be detected by providing a traverse detection unit only at one of the left and right ends and measuring the period of the detection signal.

  The above-described drum traverse type yarn winding device is a yarn winding device in which driving of a package and yarn traverse are interlocked. On the other hand, there is a yarn winding device in which the driving of the package and the traverse of the yarn are independent. For example, an arm traverse type yarn winding device that operates a traverse guide by reciprocating movement of an arm, and a belt traverse type yarn winding device that operates a traverse guide by reciprocating movement of a belt. In these yarn winding devices, it is not possible to detect a yarn traverse defect even if a traverse detection unit is provided at one of the left and right ends with respect to the center of the package.

  That is, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, the yarn is traversed by operating the traverse guide independently. In such a yarn winding device, a traverse failure occurs due to a mistake in introduction of the yarn into the traverse guide or the yarn coming off the traverse guide. When the yarn is not hooked on the traverse guide, the yarn is struck at a constant cycle (normal traverse cycle) toward the right side or the left side only by the outside or arm of the traverse guide. This is a traverse failure peculiar to the yarn winding device in which the package driving and the yarn traverse are independent, and occupies most of the traverse failure.

  In the case of such a traverse failure, the yarn is not traversed at one of the left and right ends of the package, but the yarn is traversed at a normal traverse cycle at the other end. For this reason, it is impossible to detect a traverse defect even if a traverse detection unit is provided at one of the left and right ends of the center of the package and the period of the detection signal is measured. Therefore, in these yarn winding devices, it is necessary to provide traverse detection units at both left and right ends with respect to the center of the package.

  However, when the traverse detection units are provided at both the left and right ends with respect to the central portion of the package, a plurality of traverse detection units are provided, which increases the cost. Further, in the arm traverse type yarn winding device and the belt traverse type yarn winding device, the traverse width can be changed, and packages having various widths can be formed. However, when the traverse detectors are provided at both the left and right ends with respect to the center of the package, the yarn cannot be detected if the traverse width is changed, so the position of the traverse detector must be adjusted according to the change in the traverse width. There is a problem.

JP 63-17773 A

  The present invention has been made to solve the above problems. The first object is to eliminate the necessity of providing a plurality of traverse detection units in a yarn winding device in which the driving of the package and the traverse of the yarn are independent, and to reduce the cost. The second object is to eliminate the necessity of adjusting the position of the traverse detection unit even when the traverse width is changed in the yarn winding device in which the driving of the package and the traverse of the yarn are independent. The third object is to prevent the winding of the package from being continued in a traverse failure state and to prevent the formation of a defective package.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, the first invention is a yarn winding device, and includes a winding unit, a traverse guide, and a traverse detection unit. The winding unit winds up the package. The traverse guide is driven independently of the driving of the package, and traverses the yarn wound around the package. The traverse detection unit is provided at the center of the traverse width of the traverse guide and detects the presence or absence of the yarn.

  2nd invention is 1st invention, Comprising: The center part of the traverse width of the said traverse guide is an area | region which has 1/3 width of the said traverse width, The said traverse detection part is in the said area | region. Is provided.

  3rd invention is a yarn winding device, Comprising: A winding part, a traverse guide, and a traverse detection part are provided. The winding unit winds up the package. The traverse guide is driven independently of the driving of the package, and traverses the yarn wound around the package. A traverse detection unit is provided at the center of the package width and detects the presence or absence of the yarn.

  4th invention is 3rd invention, Comprising: The center part of the said package width is an area | region which has 1/3 of the said package width, The said traverse detection part is provided in the said area | region. Yes.

  A fifth invention is any one of the first to fourth inventions, and the yarn winding device includes a yarn supplying unit, a yarn joining device, a yarn end capturing unit, and a control unit. The yarn supplying unit supplies the yarn wound around the package. The yarn joining device performs a yarn joining operation for joining the yarn end on the package side and the yarn end on the yarn feeding unit side. The yarn end catching portion performs a catching operation for catching the yarn end on the package side. The control unit performs the capturing operation by the yarn end capturing unit and the yarn joining operation by the yarn joining device, and after starting the traverse of the traverse guide, when the traverse detection unit detects that the yarn is not present, Stop the traverse of the traverse guide.

  A sixth invention is the fifth invention, wherein the yarn winding device further includes a cutting device for cutting the yarn. After performing the catching operation by the yarn end catching unit and the yarn joining operation by the yarn joining device, and starting the traverse of the traverse guide, when the traverse detecting unit detects that there is no yarn, the control unit And causing the cutting device to cut the yarn.

  7th invention is 6th invention, Comprising: After stopping the traverse of the said traverse guide, the said control part makes the said yarn end capture | acquisition part perform a capture operation again.

  The eighth invention is any one of the fifth to seventh inventions, and when the traverse detection unit detects that the yarn is not present during continuous operation of the winding unit and the traverse guide, The control unit stops the operation of the winding unit and the traverse guide.

  9th invention is 6th or 7th invention, Comprising: When the said cutting device cut | disconnects the said thread | yarn during the continuous driving | operation of the said winding part and the said traverse guide, the said control part is said winding | winding And the traverse guide are stopped.

  A tenth invention is any one of the first to ninth inventions, and the yarn winding device further includes a main guide plate and an auxiliary guide plate. A main guide plate is provided in the vicinity of the package and guides the yarn in the traverse direction. The auxiliary guide plate guides the yarn onto the main guide plate during the catching operation by the yarn end catching portion. The traverse detection unit detects the yarn passing between the main guide plate and the auxiliary guide plate.

  An eleventh aspect of the invention is any one of the first to tenth aspects of the invention, wherein the traverse detection unit is a reflective sensor.

  As effects of the present invention, the following effects can be obtained.

  According to the first invention, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, the traverse detection unit is provided at the center of the traverse width of the traverse guide. For this reason, a traverse defect can be detected without providing a plurality of traverse detection units. This is because when a traverse failure occurs because the yarn is not engaged with the traverse guide, the yarn is continuously hit by the traverse guide toward one end of the package. That is, since the yarn is beaten with a short cycle (traverse cycle) by the traverse guide, the yarn is traversed only in the vicinity of the end of the traverse width of the traverse guide and is not traversed in the center. For this reason, when a traverse failure occurs, the traverse detection unit provided at the center of the traverse width does not detect the yarn. Thereby, a traverse failure can be detected. Therefore, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to provide a plurality of traverse detection units, and the cost can be reduced. Further, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to adjust the position of the traverse detection unit even when the traverse width is changed.

  According to the second invention, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, the traverse detection unit is provided in the region having a width of 1/3 of the traverse width, and thus a plurality of traverse detection units are provided. A traverse failure can be detected without any problem. That is, when a traverse failure occurs because the yarn is not engaged with the traverse guide, the yarn is hit by the traverse guide and is not traversed to the center of the traverse width. However, the region where the yarn is not traversed due to a traverse failure is not limited to the complete center. The region where the yarn is not traversed is a region having a width of 1/3 of the traverse width including the complete center. For this reason, a traverse defect can be detected by providing a traverse detection unit in a region having a width of 1/3 of the traverse width. Therefore, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to provide a plurality of traverse detection units, and the cost can be reduced. Further, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to adjust the position of the traverse detection unit even when the traverse width is changed.

  According to the third invention, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, the traverse detection unit is provided at the center of the package width. For this reason, a traverse defect can be detected without providing a plurality of traverse detection units. In other words, when a traverse failure occurs because the yarn is not engaged with the traverse guide, the yarn is hit with a short cycle (traverse cycle) by the traverse guide, so the yarn traverses only near the end of the package width. And will not be traversed to the center. For this reason, when a traverse failure occurs, the traverse detection unit provided at the center of the package width does not detect the yarn. Thereby, a traverse failure can be detected. Therefore, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to provide a plurality of traverse detection units, and the cost can be reduced. Further, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to adjust the position of the traverse detection unit even when the traverse width is changed.

  According to the fourth invention, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, the traverse detection unit is provided in the region having a width of 1/3 of the package width, and thus a plurality of traverse detection units are provided. A traverse failure can be detected without any problem. That is, when a traverse failure occurs because the yarn is not engaged with the traverse guide, the yarn is hit by the traverse guide and is not traversed to the center of the package width. However, the region where the yarn is not traversed due to a traverse failure is not limited to the complete center. The region where the yarn is not traversed is a region having a width of 1/3 of the package width including the complete center. For this reason, a traverse defect can be detected by providing a traverse detection unit in a region having a width of 1/3 of the package width. Therefore, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to provide a plurality of traverse detection units, and the cost can be reduced. Further, in the yarn winding device in which the driving of the package and the traverse of the yarn are independent, it is not necessary to adjust the position of the traverse detection unit even when the traverse width is changed.

  According to the fifth aspect of the present invention, when the traverse detecting unit detects that there is no yarn after performing the trapping operation by the yarn end trapping unit and the yarn splicing operation by the yarn joining device and starting the traverse of the traverse guide, The guide stops traversing. For this reason, it is possible to avoid the winding operation from being continued in a state where the yarn cannot be traversed after the yarn joining operation. Therefore, it is possible to prevent a defective package from being formed.

  According to the sixth aspect of the present invention, when the traverse detecting unit detects that there is no yarn after performing the trapping operation by the yarn end capturing unit and the yarn joining operation by the yarn joining device and starting the traverse of the traverse guide, The device cuts the yarn. For this reason, if the yarn cannot be traversed after the yarn joining operation, it is possible to immediately cut the yarn and avoid the winding operation being continued. Therefore, it is possible to prevent a defective package from being formed. In addition, since the yarn end is formed on the package side before the next yarn catching operation, the success rate of catching the next yarn end by the yarn catching device is improved.

  According to the seventh aspect, after stopping the traverse of the traverse guide, the yarn end catching portion performs the catching operation of the yarn end on the package side cut by the cutting device again. By performing the yarn end catching operation again, the productivity of the yarn winding device can be improved.

  According to the eighth invention, when the traverse detection unit detects that there is no yarn during the continuous operation of the winding unit and the traverse guide, the winding unit and the traverse guide stop operating. It can be avoided that the winding of the package is continued in a state where the yarn is not traversed by the traverse guide.

  According to the ninth aspect, when the yarn is cut by the cutting device during the continuous operation of the winding unit and the traverse guide, the winding unit and the traverse guide stop the operation. Continued winding of the package while the yarn is cut can be avoided.

  According to the tenth aspect, the traverse detection unit detects the yarn passing between the main guide plate and the auxiliary guide plate. Since the presence or absence of the yarn guided by the main guide plate and the auxiliary guide plate is detected by the traverse detection unit, the detection accuracy is improved.

  According to the eleventh aspect, the reflective sensor is used as the traverse detection unit. In the transmission type sensor, the traverse detection unit is increased in size, but in the case of a reflective sensor, the traverse detection unit can be reduced in size.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified front view and block diagram illustrating a yarn winding device 100 according to Embodiment 1 of the present invention. The front view of the winding part 200 and the guide plate 61. FIG. The side view of the winding part 200 and the guide plate 61. FIG. The top view of the winding part 200 and the guide plate 61. FIG. The figure which shows the flow of operation | movement of the standup operation of the yarn winding device. The figure which shows the flow of operation | movement of the continuous winding driving | operation of the yarn winding apparatus 100. The front view which shows the winding part 200 which concerns on Example 2 of this invention.

  Next, embodiments of the invention will be described with reference to the drawings.

  A yarn winding device 100 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 6.

  As shown in FIG. 1, the yarn winding device 100 of the present embodiment forms a yarn layer on the winding tube 82 while traversing (traversing) the yarn Y of the yarn supplying bobbin 81 by the traverse device 12, and a package 83 Is a yarn winding device. The traveling direction of the yarn Y is a direction from the yarn supplying bobbin 81 toward the package 83. Although there is one yarn winding device 100 shown in FIG. 1, an automatic winder is configured by arranging a plurality of such yarn winding devices 100 in a row.

  In this specification, the winding tube 82 and the package 83 are collectively referred to as a winding bobbin B. That is, the winding bobbin B in which the yarn layer is not formed is the winding tube 82, and the winding bobbin B in which the yarn layer is formed is the package 83.

  First, an outline of the yarn winding device 100 will be described. As shown in FIG. 1, the yarn winding device 100 includes a winding unit 200, a traverse device 12, a guide plate 61, and a yarn supplying unit 300.

  The winding unit 200 is a part that winds the yarn Y around the package 83, and includes a cradle 13 and a contact roller 14. The cradle 13 is provided with a bearing (not shown), a take-up bobbin drive motor 18, a take-up bobbin rotational speed sensor 32, and a take-up bobbin diameter sensor 33. The bearing can detach the take-up bobbin B, and grips both ends of the take-up bobbin B in a rotatable manner. The cradle 13 is swingable about a swing shaft 15. When the diameter of the winding bobbin B is increased by winding the yarn Y around the winding bobbin B, the cradle 13 swings. Accordingly, an appropriate contact between the circumferential surface of the winding bobbin B and the contact roller 14 is maintained.

  The take-up bobbin drive motor 18 drives the take-up bobbin B. The drive shaft of the take-up bobbin drive motor 18 is coupled to the take-up bobbin B so as not to rotate relative to the take-up bobbin B when the take-up bobbin B is held by the bearing of the cradle 13 (so-called direct drive system). The winding bobbin B is actively driven by 18 to wind the yarn Y. The contact roller 14 contacts the circumferential surface of the take-up bobbin B and rotates in a driven manner.

  The winding bobbin rotational speed sensor 32 detects the number of rotations of the winding bobbin B. The winding bobbin diameter sensor 33 detects the diameter of the winding bobbin B. The take-up bobbin diameter sensor 33 is composed of a rotary encoder, a resolver, or the like, and detects the diameter of the take-up bobbin B by detecting the swing angle of the cradle 13.

  The traverse device 12 is provided in the vicinity of the winding bobbin B (package 83). The yarn Y is wound around the winding bobbin B while being traversed by the traverse device 12. The traverse device 12 includes an arm member 16, a traverse guide 17, and a traverse guide drive motor 19. The traverse guide 17 is a hook-shaped member that engages with the yarn Y and traverses the yarn Y. The traverse guide 17 is provided at the tip of an arm member 16 configured to be swingable. The traverse guide drive motor 19 moves the arm member 16 in the direction of the winding width of the winding bobbin B as shown by the arrow in FIG. 1, that is, the first end (the left end in the drawing) of the winding bobbin B and the second. The traverse guide 17 is reciprocated by being driven to reciprocate both ends of the end portion (right end portion in the figure). In this embodiment, a servo motor is used as the traverse guide drive motor 19, but a step motor or the like may be used.

  Hereinafter, the width in which the yarn Y is traversed by the traverse guide 17 is referred to as “traverse width”. The traverse width can be changed by increasing or decreasing the angle at which the traverse guide drive motor 19 rotates. Further, the direction in which the yarn Y is traversed, that is, the direction from the first end portion of the winding bobbin B to the second end portion, and the second end portion of the winding bobbin B toward the first end portion. The direction is called “traverse direction”.

  As shown in FIGS. 2, 3, and 4, the guide plate 61 is provided in the vicinity of the traverse device 12. The guide plate 61 is disposed upstream of the traverse guide 17 in the traveling direction of the yarn Y. The guide plate 61 includes a main guide plate 62, a first auxiliary guide plate 63, and a second auxiliary guide plate 64. The main guide plate 62 is a member that guides the yarn Y in the traverse direction, and is disposed at a position close to the traverse guide 17. The main guide plate 62 is formed with an arcuate edge for guiding the yarn Y.

  The first auxiliary guide plate 63 and the second auxiliary guide plate 64 are members that guide the yarn Y onto the main guide plate 62 when the yarn end catching operation is performed by the upper yarn catching guide portion 27 described later. The first auxiliary guide plate 63 is formed from the first end portion (the left end portion in FIG. 2) of the main guide plate 62 toward the center portion. As shown in FIG. 4, the first auxiliary guide plate 63 forms an interval between the main guide plate 62 and the yarn Y passing in the traverse direction. The edge portion of the first auxiliary guide plate 63 that guides the yarn Y is formed so as to be lowered from the first end side of the main guide plate 62 toward the center portion, and tension is applied to the yarn Y that is in contact with the edge portion. When Y is added, the thread Y slides along the edge and approaches the center of the main guide plate 62.

  The second auxiliary guide plate 64 is formed from the second end portion (the end portion on the right side in FIG. 2) of the main guide plate 62 toward the center portion. As shown in FIG. 4, the second auxiliary guide plate 64 also forms an interval through which the yarn Y passes in the traverse direction with the main guide plate 62. Further, the distal end portion of the second auxiliary guide plate 64 and the distal end portion of the first auxiliary guide plate 63 are overlapped with an interval through which the yarn Y passes. The edge of the second auxiliary guide plate 64 that guides the yarn Y is formed so as to be lowered from the second end side of the main guide plate 62 toward the center, and tension is applied to the yarn Y that is in contact with the edge. When Y is added, the thread Y slides along the edge and approaches the center of the main guide plate 62. Below the guide plate 61, a guide 65 serving as a traverse fulcrum of the yarn Y traversed (traversed) by the traverse device 12 is provided.

  A traverse detection unit 70 is provided on the guide plate 61. The traverse detection unit 70 detects the presence or absence of the yarn Y guided by the guide plate 61. Specifically, the traverse detection unit 70 detects the presence or absence of the yarn Y that passes between the main guide plate 62 and the first auxiliary guide plate 63. The main guide plate 62 has a through hole (not shown) formed on the center line of the traverse width. Through this through hole, the traverse detection unit 70 detects the presence or absence of the yarn Y passing between the main guide plate 62 and the first auxiliary guide plate 63 at the center of the traverse width of the traverse guide 17.

  The traverse detection unit 70 is a reflective sensor. The traverse detection unit 70 includes a light source unit that emits pulsed light to an object and a light receiving unit that receives reflected light from the object. The light source unit and the light receiving unit are arranged in parallel. The reflective sensor detects the presence or absence of an object by changing the intensity of reflected light. Since the traverse detection unit 70 of the present embodiment is directed between the main guide plate 62 and the first auxiliary guide plate 63, most of the pulsed light from the light source unit is the first auxiliary guide plate 63. Reflect on. Most of the light received by the light receiving portion is light reflected by the first auxiliary guide plate 63. A pulse-shaped detection signal corresponding to the intensity of light received by the light receiving unit is transmitted to the unit control unit 41 described later.

  In a state where the yarn Y is normally traversed, the yarn Y is traversed between the main guide plate 62, the first auxiliary guide plate 63, and the second auxiliary guide plate 64. When the yarn Y is traversed and crosses in front of the traverse detection unit 70, the light reflected by the yarn Y is received by the light receiving unit, and the intensity of the light received by the light receiving unit changes. A pulse-shaped detection signal corresponding to the change in the intensity of the light is transmitted to the unit controller 41 described later. The traverse detection unit 70 detects the presence or absence of the yarn Y based on a change in the intensity of the detection signal. The unit control unit 41 determines that the yarn Y is normally traversed if there is a change in the intensity of the detection signal from the traverse detection unit 70.

  In the present embodiment, a reflection type sensor is used as the traverse detection unit 70, but a transmission type sensor may be used. The transmissive sensor includes a light source unit that emits pulsed light and a light receiving unit that faces the light source unit and directly receives light from the light source unit. When the yarn Y exists between the light source unit and the light receiving unit, a change occurs in the intensity of light received by the light receiving unit. The presence or absence of the yarn Y is detected based on the pulse-shaped detection signal corresponding to the change in the intensity of light.

  However, since the transmissive sensor needs to face the light source unit and the light receiving unit, a substantially U-shaped support member that supports the light source unit and the light receiving unit is required. In this embodiment, since the traverse detection unit 70 is arranged at the center of the traverse width, there is a problem that the traverse detection unit 70 is difficult to downsize in the transmission type sensor. For this reason, it is preferable to use a reflective sensor as the traverse detection unit 70.

  In addition, the reflective sensor used in this embodiment may sometimes malfunction due to external light disturbance. However, the traverse detection unit 70 of this embodiment is directed between the main guide plate 62 and the first auxiliary guide plate 63. For this reason, the main guide plate 62 and the first auxiliary guide plate 63 block the light from the outside, and there is an advantage that there are few malfunctions due to disturbance. Also in this respect, it is preferable to use a reflective sensor as the traverse detection unit 70.

  As shown in FIG. 1, the yarn supplying section 300 is a portion that supplies the yarn Y that is wound around the winding bobbin B. A yarn supplying bobbin 81 is attached to the yarn supplying unit 300. In the yarn traveling path between the yarn supplying unit 300 and the contact roller 14, a tension applying device 20, a yarn joining device 21, and a yarn clearer 22 as a cutting device are provided in this order from the yarn supplying unit 300 side. The tension applying device 20 applies an appropriate tension to the yarn Y. The yarn clearer 22 detects the thickness of the yarn Y passing through the detection portion by a sensor and analyzes the signal from the sensor by the analyzer 23 to detect a yarn defect such as a slab. The yarn clearer 22 is used to cut the yarn Y because it has detected a yarn defect (clearer cut), or to cut the yarn Y (additional cut) to interrupt winding due to a traverse failure, although this is not a yarn defect. A cutter is attached. When the yarn clearer 22 cuts the yarn or when the yarn Y from the yarn feeding bobbin 81 is broken, the yarn joining device 21 removes the yarn end between the lower yarn on the yarn feeding bobbin 81 and the upper yarn on the winding bobbin B side. Perform the splicing operation to splic.

  Below the yarn joining device 21, there is provided a lower yarn catching guide portion 24 that sucks and catches the lower yarn on the yarn feeding bobbin 81 side and guides it to the yarn joining device 21. On the upper side of the yarn joining device 21, an upper yarn catching guide portion 27 is provided as a yarn end catching portion for sucking and catching the upper yarn on the winding bobbin B side and guiding it to the yarn joining device 21. The lower thread catching guide portion 24 is configured in a pipe shape, and is provided so as to be rotatable up and down around a shaft 25, and a suction port 26 is provided at the distal end side thereof. The upper thread catching guide portion 27 is also configured in a pipe shape, and is provided so as to be rotatable up and down around a shaft 28, and a mouse 29 is provided on the tip side thereof. A negative pressure source is connected to the lower thread catching guide portion 24 and the upper thread catching guide portion 27, and causes suction at the suction port 26 at the tip and the mouse 29.

  Next, a configuration for controlling the operation of the yarn winding device 100 will be described. In this embodiment, as shown in FIG. 1, a winding bobbin drive motor 18 that drives the winding bobbin B and a traverse guide drive motor 19 that drives the traverse guide 17 are provided separately and independently. The driving of the bobbin B and the traverse guide 17 is controlled independently. The yarn winding device 100 is provided with a unit control unit 41 that individually controls each yarn winding device 100. A winding bobbin drive control unit 31 and a traverse control unit 34 are connected to the unit control unit 41. The take-up bobbin drive control unit 31 controls driving and stopping of the take-up bobbin drive motor 18 based on a control signal from the unit control unit 41. The traverse control unit 34 controls driving and stopping of the traverse guide drive motor 19 based on a control signal from the unit control unit 41.

  The unit controller 41 is connected to the yarn clearer 22, the yarn joining device 21, the lower yarn catching guide portion 24, and the upper yarn catching guide portion 27 as a yarn end catching portion. The unit control unit 41 cuts the yarn Y when the winding is interrupted due to detection of a yarn defect or when the winding is interrupted due to a traverse failure, but the yarn clearer 22 is used to cut the yarn Y. Control the cutting action. When the yarn clearer 22 cuts the yarn or when the yarn Y from the yarn feeding bobbin 81 is broken, the unit control unit 41 sets the yarn end between the lower yarn on the yarn feeding bobbin 81 and the upper yarn on the winding bobbin B side. The yarn splicing operation by the yarn splicing device 21 for splicing is controlled. The unit control unit 41 controls the yarn end catching operation by the lower yarn catching guide unit 24 and the upper yarn catching guide unit 27 and the guide operation for guiding the yarn end to the yarn joining device 21.

  A detection signal from the traverse detection unit 70 is transmitted to the traverse control unit 34. The traverse control unit 34 detects the presence or absence of the yarn Y traversed between the main guide plate 62, the first auxiliary guide plate 63, and the second auxiliary guide plate 64 based on the detection signal. The rotation speed signal of the winding bobbin B detected by the winding bobbin rotation speed sensor 32 is transmitted to the unit control unit 41, the winding bobbin drive control unit 31, and the traverse control unit 34. The diameter signal of the winding bobbin B detected by the winding bobbin diameter sensor 33 is transmitted to the unit controller 41 and transferred from the unit controller 41 to the winding bobbin drive controller 31 and the traverse controller 34.

  The unit control unit 41 is connected to the machine base control unit 42. The machine base control unit 42 controls the plurality of yarn winding devices 100 constituting the automatic winder. The unit control unit 41, the machine base control unit 42, the winding bobbin drive control unit 31, and the traverse control unit 34 include a CPU as a calculation unit, a ROM, a RAM, and the like as a storage unit. In these ROMs, control software for operating hardware such as a CPU as a control unit is stored.

  Next, control of the yarn winding device 100 configured as described above will be described with reference to FIGS.

  First, the rising operation will be described. The rising operation is performed when the winding of the yarn Y to the empty winding tube 82 is started. Alternatively, when the yarn clearer 22 cuts the yarn or the yarn Y from the yarn supplying bobbin 81 is broken during winding, the winding of the yarn Y to the winding bobbin B is resumed. In the rising operation, the rotation of the winding bobbin B is accelerated from a stopped state to a high-speed rotation in a continuous winding operation described later. Hereinafter, a case where yarn cutting by the yarn clearer 22 occurs will be described as an example.

  Referring to FIG. 1, when yarn cutting by the yarn clearer 22 occurs, the lower yarn on the yarn supplying bobbin 81 side is in the vicinity of the lower yarn catching guide portion 24. The yarn end of the upper thread on the winding bobbin B side is wound on the winding bobbin B. The traverse guide 17 of the traverse device 12 has moved to the second end portion (the end portion on the right side in the drawing) of the winding bobbin B. The reason why the traverse guide 17 moves to the second end side of the winding bobbin B is to prevent it from getting in the way when guiding the upper thread on the winding bobbin B side to the yarn joining device 21. Further, the opening 171 of the traverse guide 17 is directed to the yarn Y so that the yarn Y can be easily engaged with the hook-shaped traverse guide 17 immediately after resuming the traverse.

  The unit controller 41 controls the catching operation by the lower thread catching guide part 24 and the upper thread catching guide part 27, and the lower thread catching guide part 24 sucks and catches the lower thread on the yarn feeding bobbin 81 side. The upper thread of the winding bobbin B is sucked and captured by the guide portion 27. Further, the unit control unit 41 controls the guide operation by the lower thread catching guide unit 24 and the upper thread catching guide unit 27, and causes the lower thread catching guide unit 24 to guide the lower thread to the yarn joining device 21 so as to catch the upper thread. The guide unit 27 guides the upper thread to the yarn joining device 21. When the upper yarn and the lower yarn are guided to the yarn joining device 21, the unit control unit 41 controls the yarn joining operation by the yarn joining device 21, and the lower yarn on the yarn supplying bobbin 81 side and the winding bobbin B side are controlled. The yarn end with the upper thread is spliced.

  When the yarn ends of the lower yarn on the yarn supplying bobbin 81 side and the upper yarn on the take-up bobbin B side have been spliced, the yarn Y is not inside the guide plate 61. The yarn Y is in a state of riding on the outside of the guide plate 61 (front of the page in FIG. 2 and below in FIG. 4). The yarn Y is engaged with a guide 65 that is a traverse fulcrum.

  Next, referring to FIG. 5, when the unit controller 41 starts up and starts operation (step S <b> 101), the winding bobbin B starts to rotate and the winding of the yarn Y is started. The traverse detection unit 70 starts detecting the yarn Y (step S102). The traverse device 12 starts the reciprocating movement of the traverse guide 17.

  As described above, the traverse guide 17 is moved to the second end portion (right end portion in the drawing) of the winding bobbin B during the yarn joining operation by the yarn joining device 21. When the reciprocating movement of the traverse guide 17 is started from that position, the traverse guide 17 first moves in the left direction in FIG. 2 and FIG. Thereafter, the traverse guide 17 repeats reciprocation in the right direction in the figure and the left direction in the figure.

  When the traverse guide 17 moves in the left direction in the figure, the traverse guide 17 comes into contact with the yarn Y and moves the yarn Y in the left direction in the figure. On the other hand, since the yarn Y is wound around the winding bobbin B, tension is applied. The edge of the first auxiliary guide plate 63 that guides the yarn Y is formed so that the yarn Y approaches the center of the main guide plate 62 when tension is applied to the yarn Y. For this reason, the traverse guide 17 moves in the left direction in the figure, whereas a force against the yarn Y acts on the yarn Y. Thereby, the yarn Y enters from the opening 171 of the traverse guide 17 and engages.

  The yarn Y engaged with the traverse guide 17 moves outside the second auxiliary guide plate 64 in the direction of arrow D1 in FIG. 4 as the traverse guide 17 moves in the left direction in FIG. In this state, the traverse detection unit 70 does not detect the yarn Y.

  As the traverse guide 17 next moves in the right direction in FIG. 4, the yarn Y is under tension. Therefore, the yarn Y enters between the first auxiliary guide plate 63 and the second auxiliary guide plate 64, and is shown in FIG. 4. Move in the direction of arrow D2. Even in this state, the traverse detection unit 70 does not detect the yarn Y.

  Further, as the traverse guide 17 moves to the left in FIG. 4 next, the yarn Y is under tension, so that it enters between the main guide plate 62 and the first auxiliary guide plate 63, and the arrow in FIG. Move in the direction of D3. When the yarn Y passes in front of the traverse detection unit 70, the traverse detection unit 70 detects the yarn Y. When the traverse detection unit 70 detects the yarn Y within a predetermined time after the start-up operation is started (Yes in step S103), the unit control unit 41 assumes that the start-up operation has succeeded without any traverse failure. Judgment is made (step S104). Thereafter, when the number of rotations of the winding bobbin B reaches the number of rotations in the continuous winding operation, the operation proceeds to the continuous winding operation (step S105), and the rising operation is terminated.

  The above is an explanation of the control when the traverse failure does not occur during the start-up operation and the start-up operation is successful. Next, the control when a traverse failure occurs during the start-up operation and the start-up operation fails will be described.

  As before, when the unit controller 41 starts up and starts operation (step S101), the winding bobbin B starts to rotate and the yarn Y starts to be wound. The traverse detection unit 70 starts detecting the yarn Y (step S102). The traverse device 12 starts the reciprocating movement of the traverse guide 17.

  As described above, the traverse guide 17 is moved to the second end portion (right end portion in the drawing) of the winding bobbin B during the yarn joining operation by the yarn joining device 21. When the reciprocating movement of the traverse guide 17 is started from that position, the traverse guide 17 first moves in the left direction in FIG. 2 and FIG. Thereafter, the traverse guide 17 repeats reciprocation in the right direction in the figure and the left direction in the figure.

  In the case where the start-up operation was successful, the yarn Y was engaged with the traverse guide 17 when the traverse guide 17 moved in the left direction in the figure. However, even when the traverse guide 17 repeats reciprocating movement in the right direction and the left direction in the figure, the yarn Y does not engage with the traverse guide 17, and the traverse guide 17 and the arm member 16 take up the yarn Y on one of the winding bobbins B. Sometimes you just need to hit it continuously towards the edge. In the case of such a traverse failure, the yarn Y does not pass in front of the traverse detection unit 70. For this reason, the traverse detection unit 70 does not detect the yarn Y.

  If the traverse detection unit 70 does not detect the yarn Y within a predetermined time after starting the start-up operation (No in step S103), the unit control unit 41 has failed in the traverse and the start-up operation has failed. Judgment is made (step S106). The traverse is immediately stopped (step S107), the yarn Y is cut (step S108), and the rising operation is terminated.

  After the start-up operation fails and the start-up operation ends, the unit control unit 41 immediately controls the catching operation by the lower thread catching guide unit 24 and the upper thread catching guide unit 27, and the lower thread catching guide unit 24 supplies the yarn. The lower thread on the bobbin 81 side is sucked and caught, and the upper thread catching guide 27 sucks and catches the upper thread on the winding bobbin B side. Further, the unit control unit 41 controls the guide operation by the lower thread catching guide unit 24 and the upper thread catching guide unit 27, and causes the lower thread catching guide unit 24 to guide the lower thread to the yarn joining device 21 so as to catch the upper thread. The guide unit 27 guides the upper thread to the yarn joining device 21. When the upper yarn and the lower yarn are guided to the yarn joining device 21, the unit control unit 41 controls the yarn joining operation by the yarn joining device 21, and the lower yarn on the yarn supplying bobbin 81 side and the winding bobbin B side are controlled. The yarn end with the upper thread is spliced. Then, the unit controller 41 starts the next rising operation.

  On the other hand, after the yarn Y is once engaged with the traverse guide 17, the yarn Y may come off the traverse guide 17. Depending on where the yarn Y comes off the traverse guide 17, the yarn Y passes once in front of the traverse detection unit 70, and after the traverse detection unit 70 detects the yarn Y, the yarn Y moves from the traverse guide 17. It may be off.

  In this case, the traverse guide 17 and the arm member 16 continuously strike the yarn Y toward one end of the take-up bobbin B. In this state, the yarn Y is traversed only in the vicinity of the end of the traverse width of the traverse guide 17 and becomes a traverse defect that is not traversed in the center. When this traverse failure occurs, the traverse detection unit 70 provided at the center of the traverse width does not detect the yarn Y.

  When the traverse detection unit 70 detects the yarn Y within a predetermined time, but immediately after the traverse detection unit 70 does not detect the yarn Y (No in step S103), the unit control unit 41 determines that the traverse failure has occurred. It is determined that the start-up operation has failed (step S106). The traverse is immediately stopped (step S107), the yarn Y is cut (step S108), and the rising operation is terminated.

  Thereafter, the unit control unit 41 immediately controls the catching operation and the guide operation by the lower yarn catching guide unit 24 and the upper yarn catching guide unit 27 as in the previous case, and controls the yarn joining operation by the yarn joining device 21. Start the start-up operation.

  Even if a traverse failure occurs, the traverse failure may be resolved by continuing the stand-up operation. However, in this embodiment, when a traverse failure occurs, it is immediately determined that the rising operation has failed, and the traverse is immediately stopped and the yarn Y is cut. Then, the process proceeds to the yarn joining operation and the next rising operation. If it is determined that the start-up operation has failed in this way, the probability of success of the start-up operation is increased by shifting to the next start-up operation early, thereby improving the productivity of the yarn winding device 100 and improving the quality of the package 83. Plan.

  Next, the continuous winding operation will be described with reference to FIG. The continuous winding operation is performed subsequent to the start-up operation when no traverse failure occurs in the start-up operation and the start-up operation is successful.

  When the unit control unit 41 starts a continuous winding operation (step S201), the rotational driving of the winding bobbin B becomes constant in the high speed rotation region, and the yarn Y is wound at a high speed. The traverse detection unit 70 starts detecting the yarn Y in the continuous winding operation (step S202). The traverse guide 17 repeats reciprocating movement in the right direction in the figure and the left direction in the figure. When the yarn Y passes through the front of the traverse detection unit 70 while being engaged with the traverse guide 17, the traverse detection unit 70 detects the yarn Y. When the traverse detection unit 70 detects the yarn Y during the continuous winding operation (Yes in step S203), the unit control unit 41 does not generate a traverse failure and the continuous winding operation is normally performed. The continuous winding operation is continued (step S204).

  The unit controller 41 detects the diameter of the take-up bobbin B by detecting the swing angle of the cradle 13 based on the detection signal from the take-up bobbin diameter sensor 33. When the diameter of the winding bobbin B reaches the full winding diameter, it is determined that the package 83 is completed, and the winding is finished (Yes in step S205). When the diameter of the winding bobbin B has not reached the full winding diameter, it is determined that the package 83 is incomplete and winding is continued (No in step S205). The traverse detection unit 70 repeatedly detects the yarn Y in the continuous winding operation (step S203).

  The above is the description of the control when the traverse failure does not occur during the continuous winding operation and the package 83 is successfully wound. Next, control when a traverse failure occurs during continuous winding operation will be described.

  Similarly to the previous step, when the unit control unit 41 starts the continuous winding operation (step S201), the rotation driving of the winding bobbin B becomes constant in the high speed rotation region, and the yarn Y is wound at a high speed. The traverse detection unit 70 starts detecting the yarn Y in the continuous winding operation (step S202). The traverse guide 17 repeats reciprocating movement in the right direction in the figure and the left direction in the figure. When the yarn Y passes through the front of the traverse detection unit 70 while being engaged with the traverse guide 17, the traverse detection unit 70 detects the yarn Y.

  During the continuous winding operation, the yarn Y may come off from the traverse guide 17 due to fluctuations in the tension of the yarn Y or the like. When the yarn Y comes off from the traverse guide 17, the traverse guide 17 and the arm member 16 continuously strike the yarn Y toward one end of the take-up bobbin B. In this state, the yarn Y is traversed only in the vicinity of the end of the traverse width of the traverse guide 17 and becomes a traverse defect that is not traversed in the center. When this traverse failure occurs, the traverse detection unit 70 provided at the center of the traverse width does not detect the yarn Y.

  If the traverse detection unit 70 no longer detects the yarn Y during the continuous winding operation (No in step S203), the unit control unit 41 determines that a traverse failure has occurred and the continuous winding operation has failed. . The unit controller 41 immediately cuts the yarn Y by the yarn clearer 22, stops the winding unit 200 and the traverse device 12, and stops the continuous winding operation (step S206). The unit control unit 41 displays an alarm to notify the administrator that the continuous winding operation has failed (step S207), and ends the continuous winding operation.

  The reason why the continuous winding operation is terminated when a traverse failure occurs during the continuous winding operation is that the yarn Y is wound at a high speed during the continuous winding operation. If a traverse failure occurs during the winding of the yarn Y at high speed, a large amount of the traverse failure yarn Y is wound around the winding bobbin B even after a short time after the occurrence of the traverse failure. ing. It takes a long time to suck and collect a large amount of the traverse defective yarn Y by the upper yarn catching and guiding unit 27 and perform the yarn joining operation again to resume the winding of the winding bobbin B. This does not improve the productivity of the package 83. For this reason, when a traverse failure occurs during the continuous winding operation, the continuous winding operation is terminated without shifting to the yarn joining operation.

  The yarn winding device 100 according to the first embodiment described above has the following effects.

  In the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, the traverse detection unit 70 is provided at the center of the traverse width of the traverse guide 17. For this reason, a traverse defect can be detected without providing a plurality of traverse detection units 70. This is because, when a traverse failure occurs due to the yarn Y not being engaged with the traverse guide 17, the yarn Y is directed toward one end of the winding bobbin B by the traverse guide 17, the arm member 16, or the like. This is because it is struck continuously. That is, since the yarn Y is hit with a short cycle (traverse cycle) by the traverse guide 17 and the arm member 16, the yarn Y is traversed only in the vicinity of the end of the traverse width of the traverse guide 17 and is not traversed in the center. For this reason, when a traverse failure occurs, the traverse detection unit 70 provided at the center of the traverse width does not detect the yarn Y. Thereby, a traverse failure can be detected. Therefore, in the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to provide a plurality of traverse detection units 70, and the cost can be reduced. Further, in the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to adjust the position of the traverse detection unit 70 even when the traverse width is changed.

  After the trapping operation by the lower thread catching guide unit 24 and the upper thread catching guide unit 27 and the yarn joining operation by the yarn joining device 21 are performed and the traverse of the traverse guide 17 is started, there is no yarn Y by the traverse detecting unit 70. If detected, the traverse guide 17 stops the traverse. For this reason, it is possible to avoid the winding operation from being continued in a state where the yarn Y cannot be traversed after the yarn joining operation. Therefore, it is possible to prevent a defective package from being formed.

  After the trapping operation by the lower thread catching guide unit 24 and the upper thread catching guide unit 27 and the yarn joining operation by the yarn joining device 21 are performed and the traverse of the traverse guide 17 is started, there is no yarn Y by the traverse detecting unit 70. If detected, the yarn clearer 22 cuts the yarn Y. For this reason, if the yarn Y cannot be traversed after the yarn joining operation, it is possible to immediately cut the yarn Y and prevent the winding operation from being continued. Therefore, it is possible to prevent a defective package from being formed. Further, since the yarn end on the winding bobbin B side is formed before the next yarn catching operation is performed, the success rate of catching the next yarn end by the upper yarn catching guide portion 27 is improved.

  After stopping the traverse of the traverse guide 17, the upper thread catching guide portion 27 performs the catching operation of the yarn end on the winding bobbin B side cut by the yarn clearer 22 again. By performing the yarn end capturing operation again, the productivity of the yarn winding device 100 can be improved.

  The traverse detection unit 70 detects the yarn Y traversed between the main guide plate 62, the first auxiliary guide plate 63, and the second auxiliary guide plate 64. Since the yarn Y traversed near the traverse detection unit 70 is detected, the detection accuracy is improved.

  A reflection type sensor is used as the traverse detection unit 70. In the transmission type sensor, the traverse detection unit 70 is increased in size, but in the case of a reflective sensor, the traverse detection unit 70 can be reduced in size.

  If the traverse detection unit 70 detects that there is no yarn Y during the continuous winding operation, the winding unit 200 and the traverse device 12 are stopped, and the continuous winding operation is stopped. It is possible to avoid the winding of the winding bobbin B in a state where the yarn Y is not traversed by the traverse guide 17.

  Next, a yarn winding device 100 according to Embodiment 2 of the present invention will be described with reference to FIG. In the first embodiment, the traverse detection unit 70 is provided on the center line of the traverse width. In the second embodiment, as shown in FIG. 7, the traverse detection unit 70 is provided in a region having a width of 1/3 of the traverse width. By providing the traverse detection unit 70 in a region having a width of 1/3 of the traverse width, it is possible to detect a traverse failure without providing a plurality of traverse detection units 70.

  That is, when a traverse failure occurs because the yarn Y is not engaged with the traverse guide 17, the yarn Y is hit by the arm member 16 and the like, and is not traversed to the center of the traverse width. However, the region where the yarn Y is not traversed due to a traverse failure is not limited to the complete center. The region where the yarn Y is not traversed is a region having a width of 1/3 of the traverse width including the complete center. For this reason, a traverse defect can be detected by providing the traverse detection unit 70 in an area having a width of 1/3 of the traverse width.

  In this case, in the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to provide a plurality of traverse detection units 70, and the cost can be reduced. Even when the traverse width is changed, it is not necessary to adjust the position of the traverse detection unit 70.

  The traversed yarn Y has a guide 65 as a traverse fulcrum. As the distance from the guide 65 increases (the further toward the downstream in the yarn traveling direction), the width over which the yarn Y is traversed becomes wider. For this reason, the region where the yarn Y is not traversed due to the traverse failure becomes wider as the distance from the guide 65 increases (the more downstream the yarn travels). That is, as shown in FIG. 7, in the region from the guide 65 to the contact roller 14, the region closer to the contact roller 14 side has a wider region where the yarn Y is not traversed when a traverse failure occurs. Between the guide 65 and the contact roller 14, the traverse detection unit 70 is preferably provided in a 1/3 region on the contact roller 14 side, and more preferably in a 1/4 region on the contact roller 14 side.

  Therefore, as shown in FIG. 7, the traverse detection unit 70 is a region having a width of 1/3 of the traverse width, and from 1/3 on the contact roller 14 side between the guide 65 and the contact roller 14. It is preferable to provide in a quarter region.

  Next, a yarn winding device 100 according to Embodiment 3 of the present invention will be described. In the third embodiment, the position where the traverse detection unit 70 is provided is not on the center line of the traverse width but on the center line of the winding bobbin B (package 83). By providing the traverse detection unit 70 on the center line of the winding bobbin B (package 83) width, a traverse failure can be detected without providing a plurality of traverse detection units 70.

  In other words, when a traverse failure occurs because the yarn Y is not engaged with the traverse guide 17, the yarn Y is hit with a short cycle (traverse cycle) by the arm member 16 or the like, and therefore the yarn Y is taken up by the winding bobbin. B (package 83) is traversed only near the end of the width, and is not traversed in the center. For this reason, when a traverse failure occurs, the traverse detection unit 70 provided on the center line of the winding bobbin B (package 83) width does not detect the yarn Y. Thereby, a traverse failure can be detected. Therefore, in the yarn winding device in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to provide a plurality of traverse detection units 70, and the cost can be reduced. Even when the traverse width is changed, it is not necessary to adjust the position of the traverse detection unit 70.

  Next, a yarn winding device 100 according to Embodiment 4 of the present invention will be described. In the third embodiment, the traverse detection unit 70 is provided on the center line of the width of the winding bobbin B (package 83). In the fourth embodiment, the traverse detection unit 70 is provided in a region having a width that is 1/3 of the width of the winding bobbin B (package 83). By providing the traverse detection unit 70 in an area having a width of 1/3 of the winding bobbin B (package 83), it is possible to detect a traverse failure without providing a plurality of traverse detection units 70.

  That is, when a traverse failure occurs because the yarn Y is not engaged with the traverse guide 17, the yarn Y is hit by the arm member 16 or the like and traverses to the center of the winding bobbin B (package 83) width. It will not be done. However, the region where the yarn Y is not traversed due to a traverse failure is not limited to the complete center. The region where the yarn Y is not traversed is a region having a width of 1/3 of the winding bobbin B (package 83) width including the complete center. For this reason, a traverse defect can be detected by providing the traverse detection unit 70 in an area having a width of 1/3 of the winding bobbin B (package 83).

  In this case, in the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to provide a plurality of traverse detection units 70, and the cost can be reduced. Further, in the yarn winding device 100 in which the driving of the winding bobbin B and the traverse of the yarn Y are independent, it is not necessary to adjust the position of the traverse detection unit 70 even when the traverse width is changed.

  The traversed yarn Y has a guide 65 as a traverse fulcrum. As the distance from the guide 65 increases (the further toward the downstream in the yarn traveling direction), the width over which the yarn Y is traversed becomes wider. For this reason, the region where the yarn Y is not traversed due to the traverse failure becomes wider as the distance from the guide 65 increases (the more downstream the yarn travels). That is, in the region from the guide 65 to the contact roller 14, the region closer to the contact roller 14 side has a wider region where the yarn Y is not traversed when a traverse failure occurs. Between the guide 65 and the contact roller 14, the traverse detection unit 70 is preferably provided in a 1/3 region on the contact roller 14 side, and more preferably in a 1/4 region on the contact roller 14 side (FIG. 7). reference.).

  Therefore, the traverse detection unit 70 is a region having a width of 1/3 of the winding bobbin B (package 83), and from 1/3 on the contact roller 14 side between the guide 65 and the contact roller 14. It is preferable to provide in a quarter region.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the configuration for controlling the operation of the yarn winding device 100 is not limited to the embodiment. For example, the winding bobbin drive control unit 31 and the traverse control unit 34 may be provided in the unit control unit 41.

  The winding bobbin B is driven directly by the winding bobbin driving motor 18, but the winding bobbin B may be driven by bringing a driving roller into contact with the surface of the winding bobbin B. . The shape of the contact roller 14 is a cone shape having different diameters at both ends, but may be a cylindrical shape having the same diameter at both ends.

  Further, the traverse device 12 is configured such that the longitudinal direction of the arm member 16 is parallel to the installation direction (vertical direction) of the yarn winding device 100, but the longitudinal direction of the arm member 16 is installed of the yarn winding device 100. You may be comprised so that it may become perpendicular | vertical with respect to a surface. The traverse device 12 is configured to reciprocate the arm member 16 by the traverse guide drive motor 19, but an endless timing belt is disposed in the vicinity of the contact roller 14, and the traverse guide 17 is attached to the timing belt. The timing belt may be configured to reciprocate by a pulse motor, for example.

  In the above embodiment, the diameter of the take-up bobbin B is detected by the take-up bobbin diameter sensor 33. However, other structures may be adopted as long as the diameter of the take-up bobbin B can be detected. For example, the diameter of the winding bobbin B may be calculated by measuring the amount of the yarn Y wound around the winding bobbin B.

  In step S103 of the above embodiment, the detection timing of the yarn Y has been described as being within a predetermined time after the start-up operation is started. However, the determination is not based on the elapsed time, but based on the number of traverses of the traverse guide 17, for example. You may judge.

  In the above embodiment, an example in which the traverse device 12 is applied to an automatic winder has been described. However, the traverse device 12 of this embodiment can also be applied to other yarn winding devices such as a spinning machine.

DESCRIPTION OF SYMBOLS 100 Thread winding apparatus 200 Winding part 300 Yarn supply part 12 Traverse apparatus 13 Cradle 14 Contact roller 15 Oscillating shaft 16 Arm member 17 Traverse guide 171 Opening part 18 Winding bobbin drive motor 19 Traverse guide drive motor 20 Tension applying apparatus 21 Yarn Joint device 22 Yarn clearer 23 Analyzer 24 Lower thread catching guide part 25 Shaft 26 Suction port 27 Upper thread catching guide part 28 Shaft 29 Mouse 31 Winding bobbin drive control part 32 Winding bobbin rotational speed sensor 33 Winding bobbin diameter sensor 34 Traverse Control unit 41 Unit control unit 42 Machine base control unit 61 Guide plate 62 Main guide plate 63 First auxiliary guide plate 64 Second auxiliary guide plate 65 Guide 70 Traverse detection unit 81 Yarn feeding bobbin 82 Winding tube 83 Package B Winding Bobbin thread Y

Claims (11)

A winding unit for winding the package;
A traverse guide that is driven independently of the drive of the package and traverses the yarn wound around the package;
A traverse detector provided at the center of the traverse width of the traverse guide for detecting the presence or absence of the yarn;
A yarn winding device comprising: The yarn winding device according to claim 1,
The yarn winding device, wherein a central portion of the traverse width of the traverse guide is a region having a width of 1/3 of the traverse width, and the traverse detection unit is provided in the region. A winding unit for winding the package;
A traverse guide that is driven independently of the drive of the package and traverses the yarn wound around the package;
A traverse detection unit that is provided at the center of the package width and detects the presence or absence of the yarn;
A yarn winding device comprising: The yarn winding device according to claim 3,
The yarn winding device according to claim 1, wherein a central portion of the package width is a region having a width of 1/3 of the package width, and the traverse detection unit is provided in the region. The yarn winding device according to any one of claims 1 to 4,
A yarn supplying section for supplying a yarn wound around the package;
A yarn joining device that performs a yarn joining operation to join the yarn end on the package side and the yarn end on the yarn feeding unit side;
A yarn end catching portion that performs a catching operation to catch the yarn end on the package side;
After performing the catching operation by the yarn end catching unit and the yarn joining operation by the yarn joining device and starting the traverse of the traverse guide, if the traverse detecting unit detects that there is no yarn, And a control unit for stopping the traverse. The yarn winding device according to claim 5,
A cutting device for cutting the yarn;
After performing the catching operation by the yarn end catching unit and the yarn joining operation by the yarn joining device, and starting the traverse of the traverse guide, when the traverse detecting unit detects that there is no yarn, the control unit A yarn winding device that causes the cutting device to cut the yarn. The yarn winding device according to claim 6,
After stopping the traverse of the traverse guide, the control unit causes the yarn end capturing unit to perform a capturing operation again. The yarn winding device according to any one of claims 5 to 7,
During the continuous operation of the winding unit and the traverse guide, when the traverse detection unit detects that there is no yarn, the control unit stops the operation of the winding unit and the traverse guide. Characteristic yarn winding device. The yarn winding device according to any one of claims 6 and 7,
When the cutting device cuts the yarn during continuous operation of the winding unit and the traverse guide, the control unit stops the operation of the winding unit and the traverse guide. apparatus. The yarn winding device according to any one of claims 1 to 9,
A main guide plate provided in the vicinity of the package for guiding the yarn in the traverse direction; and an auxiliary guide plate for guiding the yarn onto the main guide plate during the catching operation by the yarn end catching portion. And
The traverse detection unit detects the yarn passing between the main guide plate and the auxiliary guide plate. The yarn winding device according to any one of claims 1 to 10,
The yarn winding device, wherein the traverse detection unit is a reflective sensor.

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