JP2013155030A - Yarn winding unit and yarn winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of surely and early detecting abnormality of a support state of a package in a yarn winding machine.SOLUTION: A cradle 20 includes a package support frame 33, a first rotary support member 34 and a second rotary support member 35. The first rotary support member 34 supports one end of a winding tube 14 in a holding direction of the winding tube 14 of a package 15. The second rotary support member 35 supports the other end of the winding tube 14 of the package 15 in the holding direction, and rotatably supports the package 15 together with the first rotary support member 34. A detection device 61 detects information concerning a distance between the rotary support members 34 and 35. A unit control portion controls the rotation of the package 15 based on a detection result of the detection device 61.

Description

  The present invention mainly relates to a configuration for detecting play of a package that occurs during winding of a yarn by a yarn winding machine.

  A yarn winding machine such as an automatic winder is a device that winds a yarn supplied from a yarn supplying unit around a winding tube (winding bobbin). A state in which a thread is wound around the winding tube is referred to as a package.

  The automatic winder includes a package support for rotatably supporting the package. The package support part has a pair of rotation support members (bearing centers). The pair of rotation support members are configured to rotatably support the package by sandwiching the winding tube of the package from both sides in the axial direction. Yarn winding machines including such a package support (cradle) are disclosed in, for example, Patent Document 1 and Patent Document 2.

  By the way, as for the above-described winding tube, a paper tube is widely used. Such a paper take-up tube is particularly called a paper tube. Normally, a winding tube is repeatedly reused in an automatic winder, but a paper tube made of paper may be damaged due to repeated use and deform.

  Patent Document 1 points out that when the end of the paper tube is deformed into a non-circular shape, the rotation support member may not be inserted. In addition, Patent Document 1 discloses a configuration including a pressing unit that relatively moves the paper tube and the rotation support member in the insertion direction. According to Japanese Patent Application Laid-Open No. 2004-228561, even if the end portion of the paper tube is deformed, the rotation support member can be appropriately inserted.

  Patent Document 1 discloses a configuration in which a package brake for stopping the rotation of the package also serves as the pressing means. According to this, when the package brake is operated, a force that tightens the paper tube by the pair of rotation support members works, so that slip between the paper tube and the rotation support member can be suppressed during the brake operation, and the package Can be stopped efficiently and promptly.

  However, in the configuration of Patent Document 1, a force that strongly tightens the paper tube is applied each time the brake is applied, so that damage is accumulated in the paper tube and the deformation of the paper tube gradually proceeds. When the deformation of the paper tube proceeds, an abnormality (for example, rattling of the package) may occur in the support state of the rotating package. In particular, in the case of an automatic winder having a high winding speed, the backlash of the package may adversely affect the quality of the package.

  Therefore, when an abnormality such as rattling occurs in the support state of the package, it is possible to control the rattling by some means such as stopping the rotation of the package or reducing the rotation speed. It is preferable from the viewpoint of quality maintenance.

  In this regard, Patent Document 2 discloses a configuration in which vibration of the cradle is detected and the rotational speed of the package is reduced according to the detected vibration. That is, when the play of the package occurs, vibration is generated in the cradle (package support part) that supports the package, so that when the vibration of the cradle is detected, the rotational speed of the package is reduced, It suppresses rattling. According to Patent Document 2, it is possible to prevent the quality of the package from being deteriorated.

JP-A-10-17211 JP 2009-208880 A

  The configuration of Patent Document 2 is a configuration in which the play of the package is detected by observing the vibration of the cradle. Therefore, the play of the package is indirectly detected. Since there is a slight time lag between the occurrence of rattling in the package and the occurrence of vibration in the cradle, the configuration of Patent Document 2 cannot immediately detect rattling of the package.

  The inventor of the present application repeated experiments for actually winding the yarn around the package, and measured how the package rattled with a vibration sensor and a high-speed video camera. As a result, it has been clarified that it takes an extremely short time of 50 ms from the occurrence of rattling to the adverse effect on the quality of the package.

  In this regard, in the configuration of Patent Document 2, since it is difficult to immediately detect the rattling of the package, control (specifically, deceleration control) for suppressing the rattling has an adverse effect on the quality of the package. It may be impossible to start within a short time (50 ms). In other words, in the configuration of Patent Document 2, control for suppressing rattling may not be in time.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a configuration in which an abnormality in the support state of a package can be reliably detected at an early stage in a yarn winding machine.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a yarn winding unit having the following configuration is provided. That is, the yarn winding unit includes a main body frame, a package support unit, a detection device, and a control unit. The package support unit includes a package support frame, a first rotation support unit, and a second rotation support member. The package support frame is attached to the main body frame. The first rotation support member supports one end of the winding tube in the holding direction of the winding tube of the package. The second rotation support member supports the other end of the winding tube of the package in the clamping direction and rotatably supports the package together with the first rotation support member. The detection device detects information related to a distance between the first rotation support member and the second rotation support member. The control unit controls rotation of the package based on a detection result of the detection device.

  That is, since the winding tube of the package is sandwiched and supported by a pair of rotation support members, the support state of the package (and the winding tube) is detected by detecting information on the distance between the rotation support members. It is possible to grasp clearly. Therefore, according to the above configuration, when an abnormality (such as looseness of the package) occurs in the support state of the package, the abnormality can be immediately detected and appropriately dealt with.

  The yarn winding unit is preferably configured as follows. That is, the package support frame includes a support frame main body provided to be rotatable with respect to the main body frame, and a first arm part and a second arm part provided to extend from the support frame main body. . The first rotation support member is attached to the first arm so as not to move in the clamping direction. The second rotation support member is attached to the second arm portion so as to be movable in the clamping direction. The detection device detects position information of the second rotation support member as information regarding a distance between the first rotation support member and the second rotation support member.

  That is, since the position of the first rotation support member is fixed, the interval between the rotation support members can be known only by detecting the position of the movable second rotation support member.

  The yarn winding unit is preferably configured as follows. In other words, the detection device includes a detected member and a detection unit for detecting the position of the detected member. A relative positional relationship between the detected member and the detection unit is provided so as to change according to a change in a distance between the first rotation support member and the second rotation support member. The yarn winding unit includes a determination unit that determines whether the distance between the first rotation support member and the second rotation support member is appropriate based on a detection state of the detected member by the detection unit. Prepare.

  As described above, it is possible to easily determine whether or not the distance between the rotation support members is appropriate based on the detection state of the detection unit. Thereby, it can be known whether the support state of the package currently supported by the rotation support member is appropriate.

  The yarn winding unit is preferably configured as follows. That is, one of the detected member and the detection unit moves in conjunction with the movement of the second rotation support member in the clamping direction. The other of the detected member and the detection unit is attached to the package support unit so as not to move in conjunction with the movement of the second rotation support member in the clamping direction. The detection device includes a position adjustment mechanism that can adjust an attachment position of at least one of the detected member and the detection unit in a direction parallel to the clamping direction.

  With this configuration, the position of the second rotation support member in the clamping direction can be detected by the detection unit. And since it became possible to adjust the attachment position in the clamping direction of a to-be-detected member or a detection part, the zero point adjustment of a detection apparatus can be easily performed in the said clamping direction. Therefore, for example, when the length of the take-up tube held by the rotation support member is changed, the zero point adjustment of the detection device is performed to cope with the take-up tube whose length has been changed. Can do.

  The yarn winding unit is preferably configured as follows. That is, the detected member is a magnet. The said detection part is a magnet sensor which detects the magnetism of the said magnet which exists in a predetermined range. The determination unit determines whether a distance between the first rotation support member and the second rotation support member is appropriate based on a detection state of the magnet by the magnet sensor.

  In this way, it is possible to detect whether or not the distance between the rotation support members is appropriate by an inexpensive magnet sensor.

  In the above-described yarn winding unit, it is preferable that the detection device can detect a movement distance and a movement direction from the reference position of the second rotation support member in the clamping direction.

  Thus, since the movement amount of the second rotation support member can be detected, the support state of the package can be detected more accurately. In addition, it is possible to detect in which direction the second rotation support member moves in the direction approaching the first rotation support member or the direction away from the first rotation support member.

  In the yarn winding unit, the detection device preferably has a plurality of detection positions.

  Thereby, since the position of the second rotation support member can be detected in multiple stages, the support state of the package can be evaluated in multiple stages.

  The yarn winding unit is preferably configured as follows. That is, between the second arm part and the second rotation support member, an expansion / contraction part that can expand and contract in a direction parallel to the clamping direction is disposed. The first arm portion and the second arm portion are fixedly provided with respect to the support frame main body, and the second rotation support member moves in the clamping direction by expansion and contraction of the expansion and contraction portion.

  Thus, by providing the expansion / contraction part, the second rotation support member can be moved in the clamping direction, so that, for example, the package can be removed by releasing the clamping of the package by the rotation support member. In addition, since the first arm portion and the second arm portion are fixedly configured, members that move when an abnormality occurs in the support state of the package are limited to the telescopic portion and the second rotation support portion. Therefore, by detecting the position of the second rotation support member, it is possible to reliably detect a change in the distance between the rotation support members.

  The yarn winding unit is preferably configured as follows. That is, this yarn winding unit includes an operation lever. The operation lever is attached to the package support frame so as to be rotatable about a support shaft and is connected to the extendable portion. The detection device detects a position of the operation lever as position information of the second rotation support member.

  By rotating the operation lever, the expansion / contraction part can be expanded and contracted, and the second rotation support member can be moved in the clamping direction, so that the package can be easily attached and detached. Since the operation lever moves in conjunction with the expansion and contraction of the expansion / contraction part, the position of the second rotation support member can be detected by detecting the position of the operation lever.

  In the above-described yarn winding unit, it is preferable that when the control unit determines that the support state of the package is abnormal based on a detection result of the detection device, the rotation state of the package is changed.

  That is, according to the configuration of the present invention, the support state of the package can be detected directly and clearly, so that the control for changing the rotation state of the package when an abnormality occurs can be quickly performed. Thereby, it is possible to prevent a defective package from being formed due to an abnormality in the support state of the package.

  According to another aspect of the present invention, a yarn winding machine including a plurality of the above-described yarn winding units is provided.

  According to this, when an abnormality such as rattling occurs in the package in the yarn winding unit, the abnormality can be immediately detected and appropriately dealt with based on the detection result of the detection device. The production efficiency of the entire machine can be improved.

The side view of the yarn winding unit according to one embodiment of the present invention. Top view of the cradle. Sectional drawing of a 2nd rotation support member and an expansion-contraction part. The flowchart of the thread winding operation | work by an automatic winder.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a yarn winding unit 10 according to an embodiment of the present invention. The automatic winder (yarn winding machine) according to the present embodiment mainly includes a plurality of yarn winding units 10 arranged side by side and an unillustrated machine base control device arranged at one end in the arranged direction. .

  The yarn winding unit 10 is configured to unwind the yarn 12 of the yarn supplying bobbin 11 and wind it around the outer periphery of the winding tube 14. The winding tube 14 in a state where the yarn 12 is wound is referred to as a package 15. In the following description, “upstream side” and “downstream side” refer to the upstream side and the downstream side when viewed in the traveling direction of the yarn 12.

  As shown in FIG. 1, the yarn winding unit 10 mainly includes a main body frame 16, a yarn supplying unit 17, and a winding unit 18.

  The main body frame 16 is disposed on a side portion of the yarn winding unit 10. Most of the configuration of the yarn winding unit 10 is directly or indirectly supported by the main body frame 16.

  The yarn supplying unit 17 is configured to be able to hold the yarn supplying bobbin 11 for supplying the yarn 12 in a substantially upright state. The winding unit 18 includes a cradle (package support unit) 20 that rotatably supports the package 15, and a winding drum (drive unit) 21 that traverses the yarn 12 and drives the package 15. Yes.

  The winding drum 21 is disposed to face the package 15 and is configured to be rotationally driven by a motor (not shown). The cradle 20 is configured so that the peripheral surface of the package 15 that is rotatably supported can be brought into contact with the winding drum 21. By rotating the winding drum 21 in a state where the peripheral surface of the package 15 is in contact with the winding drum 21, the package 15 is driven to rotate. Thereby, the yarn 12 unwound from the yarn supplying bobbin 11 can be wound around the package 15.

  A reciprocating spiral traverse groove (not shown) is formed on the outer peripheral surface of the winding drum 21. The yarn 12 wound around the package 15 travels through the inside of the traverse groove. By rotating the winding drum 21, the traveling yarn 12 is traversed by the reciprocating spiral traverse groove. By rotating the winding drum 21 with the above configuration, the yarn 12 can be wound around the package 15 while traversing. Note that the configuration for traversing the yarn 12 is not limited to the winding drum 21 described above. For example, the yarn 12 may be traversed by an arm-type traverse device that guides the yarn 12 by a traverse guide that is reciprocated to the left and right, or a belt-type traverse device. Further, the configuration for rotating the package 15 is not limited to the winding drum 21 described above. For example, you may comprise so that the said package 15 may be rotated by rotationally driving the rotation support member (after-mentioned) which supports the package 15 with a motor.

  Each yarn winding unit 10 includes a unit control unit (not shown). The unit control unit includes hardware such as a CPU, ROM, and RAM, and software such as a control program stored in the RAM. The hardware and software cooperate to control each component of the yarn winding unit 10. Moreover, the unit control part with which each thread winding unit 10 is provided is comprised so that communication with the said machine stand management apparatus is possible. As a result, the operations of the plurality of yarn winding units 10 provided in the automatic winder can be centrally managed in the machine management device.

  Further, the yarn winding unit 10 includes, in order from the yarn supplying unit 17 side, in the yarn traveling path between the yarn supplying unit 17 and the winding unit 18, an unwinding assisting device 22, a tension applying device 23, and a yarn joining device. 24 and the yarn monitoring device 25 are arranged.

  The unwinding assisting device 22 has a regulating member 26 that comes into contact with a portion (balloon) that is swollen to the outside when the yarn 12 unwound from the yarn feeding bobbin 11 is swung by centrifugal force. By restricting the yarn 12 from being excessively swung by bringing the regulating member 26 into contact with the balloon, an appropriate tension is applied to the balloon to appropriately unwind the yarn 12 from the yarn feeding bobbin 11. Can do.

  The tension applying device 23 applies a predetermined tension to the traveling yarn 12. The tension applying device 23 of the present embodiment employs a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. A biasing force is applied to the movable comb teeth so that the comb teeth are engaged with each other. By making the comb teeth mesh with each other and allowing the yarn 12 to pass while bending between the comb teeth, a tension can be applied to the yarn 12 to improve the quality of the package 15. For the tension applying device 23, for example, a disk-type device can be adopted in addition to the gate-type device.

  The yarn monitoring device 25 is configured to monitor the quality of the traveling yarn 12. Specifically, the yarn monitoring device 25 is configured to monitor the thickness of the yarn 12 by a light transmission type sensor. By monitoring the yarn thickness, the yarn defect (location where the yarn 12 is abnormal) included in the yarn 12 can be detected. In the vicinity of the yarn monitoring device 25, a cutter (not shown) is provided for cutting the yarn 12 immediately when the yarn monitoring device 25 detects a yarn defect. The yarn monitoring device 25 is not limited to the light transmission type sensor, and may be configured to monitor the yarn 12 with a light reflection type sensor or a capacitance type sensor, for example.

  The yarn joining device 24 joins the lower yarn on the yarn feeding bobbin 11 and the upper yarn on the package 15 side when the yarn 12 between the yarn feeding bobbin 11 and the package 15 is in a divided state for some reason. (Yarn splicing). In the present embodiment, the yarn joining device 24 is configured as a splicer device that twists yarn ends together by a swirling air flow generated by compressed air. However, the yarn splicing device 24 is not limited to a pneumatic splicer device, and may be a mechanical knotter or the like, for example.

  On the lower side and the upper side of the yarn joining device 24, the lower yarn suction pipe 27 that catches the yarn end on the yarn feeding bobbin 11 side and guides it to the yarn joining device 24, and the yarn end on the package 15 side is caught. An upper thread suction pipe 28 that guides to the joining device 24 is provided. A lower thread suction port 31 is formed at the tip of the lower thread suction pipe 27. An upper thread suction port 32 is formed at the tip of the upper thread suction pipe 28. Further, the lower thread suction pipe 27 and the upper thread suction pipe 28 are configured to be rotatable about shafts 29 and 30, respectively. Appropriate negative pressure sources are connected to the lower thread suction pipe 27 and the upper thread suction pipe 28, respectively, and a suction flow is generated at the lower thread suction port 31 and the upper thread suction port 32 so that the upper thread and the lower thread are The yarn end can be sucked and captured.

  Next, the cradle 20 will be described. As shown in FIG. 2, the cradle 20 includes a package support frame 33 and a pair of rotation support members (a first rotation support member 34 and a second rotation support member 35).

  As shown in FIG. 2, the package support frame 33 is configured as a substantially U-shaped metal frame. Specifically, the package support frame 33 includes a support frame main body 36, and a first arm portion 37 and a second arm portion 38 provided extending from the support frame main body 36. The first arm portion 37 and the second arm portion 38 are provided integrally and fixedly with respect to the support frame main body 36. That is, the U-shaped package support frame 33 is configured not to be deformed.

  The first rotation support member 34 is disposed at the tip of the first arm portion 37. In addition, the second rotation support member 35 is disposed at the tip of the second arm portion 38. As shown in FIG. 2, the first rotation support member 34 and the second rotation support member 35 are configured to support the package 15 by sandwiching the winding tube 14 of the package 15 in the axial direction thereof. . In the following description, the direction in which the rotation support members 34 and 35 sandwich the winding tube 14 (the left-right direction in FIG. 2) is referred to as “the clamping direction”.

  In the present embodiment, the cradle 20 is configured to support a cone-type (tapered) package 15. The first rotation support member 34 supports the small diameter side of the package 15, and the second rotation support member 35 supports the large diameter side of the package 15.

  The first rotation support member 34 is attached to the first arm portion 37 so as to be rotatable around the rotation axis. The second rotation support member 35 is attached to the second arm portion 38 so as to be rotatable around the rotation axis. The rotation support members 34 and 35 are arranged to face each other so that the extension lines of the respective rotation axes coincide with each other. With this configuration, the leading end of the first rotation support member 34 is inserted into the small-diameter side end of the winding tube 14, and the leading end of the second rotation support member 35 is inserted into the large-diameter side end of the winding tube 14. Thus, the package 15 (or the winding tube 14) can be supported so as to be rotatable around its axis.

  In this embodiment, the 1st rotation support member 34 is attached to the 1st arm part 37 so that it cannot move by the clamping direction. On the other hand, the 2nd rotation support member 35 is attached to the 2nd arm part 38 via the expansion-contraction part 42 so that it can move in a clamping direction.

  As shown in FIG. 3, the telescopic part 42 has a bearing sleeve 43, a bearing 44, a shaft 45, and a first spring 47 configured as a compression coil spring.

  The shaft 45 is a rotation axis of the second rotation support member 35. The second rotation support member 35 is fixedly attached to the tip of the shaft 45. The shaft 45 is attached to the bearing sleeve 43 via a bearing 44.

  As shown in FIG. 3, the bottom end of the second arm portion 38 is fixedly provided with a bottomed cylindrical cylinder 50 whose first rotation support member 34 side (left side in FIG. 3) is open. A part of the bearing sleeve 43 is inserted into the cylinder 50. Further, the bearing sleeve 43 is configured to be slidable in the clamping direction (left-right direction in FIG. 3) with a part thereof being inserted into the cylinder 50. As a result, the second rotation support member 35 can move relative to the second arm portion 38 in the clamping direction.

  Between the bearing sleeve 43 and the cylinder 50, the 1st spring 47 comprised as a compression coil spring is arrange | positioned. The first spring 47 biases the bearing sleeve 43 toward the first rotation support member 34 (toward the left side in FIG. 3). As a result, the second rotation support member 35 is biased toward the first rotation support member 34, so that the winding tube 14 of the package 15 can be sandwiched and supported by the rotation support members 34 and 35.

  Further, the cradle 20 includes an operation lever 51 for extending and retracting the extendable portion 42. As shown in FIG. 2, the operation lever 51 has a base end portion attached to the package support frame 33 via a support shaft 52, and a handle portion 53 provided at the tip end portion. Further, a connecting portion 54 is integrally formed in the middle portion of the operation lever 51 in the longitudinal direction, and this connecting portion 54 is connected to the bearing sleeve 43. With this configuration, the bearing sleeve 43 can be moved in the clamping direction by rotating the operation lever 51.

  Therefore, by rotating the operation lever 51, the second rotation support member 35 is moved away from the first rotation support member 34 (rightward in FIG. 3) against the urging force of the first spring 47. be able to. Thereby, since the distance between the rotation support members 34 and 35 can be increased and the holding of the winding tube 14 by the rotation support members 34 and 35 can be released, the winding tube 14 can be attached and detached.

  An air supply hole 55 is formed in the cylinder 50, and a joint bolt 56 is connected to the air supply hole 55. The joint bolt 56 is connected to an air pipe (not shown) connected to a compressed air supply source via an electromagnetic valve. With this configuration, compressed air can be supplied into the cylinder 50 by appropriately controlling the solenoid valve.

  On the other hand, the bearing sleeve 43 is provided with a seal member 58 that maintains a substantially airtight state between the bearing sleeve 43 and the cylinder 50 and is slidable with respect to the cylinder 50. Thereby, the bearing sleeve 43 and the cylinder 50 are comprised as a kind of air cylinder. With this configuration, by supplying compressed air into the cylinder 50, the package sleeve mechanism 60 can be operated by moving the bearing sleeve 43 toward the first rotation support member 34 (to the left in FIG. 3). .

  The package brake mechanism 60 will be described. The bearing 44 is slidable with respect to the bearing sleeve 43. As a result, the second rotation support member 35 can move relative to the bearing sleeve 43 in the axial direction of the shaft 45. A brake shoe 57 is provided on the bearing sleeve. The brake shoe 57 is arranged to face the second rotation support member 35 from the opposite side of the winding tube 14 in the axial direction of the shaft 45.

  On the other hand, a second spring 46 is disposed between the bearing 44 and the bearing sleeve 43. The second spring 46 is configured as a compression coil spring and applies a biasing force in a direction in which the brake shoe 57 and the second rotation support member 35 are separated from each other. The second spring 46 keeps the brake shoe 57 and the second rotation support member 35 from contacting each other when the package brake mechanism 60 is not operating (when compressed air is not supplied to the cylinder 50). It is configured to be able to.

  When compressed air is supplied to the cylinder 50, the bearing sleeve 43 moves toward the first rotation support member 34 (to the left in FIG. 3). At this time, the second rotation support member 35 moves integrally with the bearing sleeve 43. However, when the winding tube 14 is sandwiched between the rotation support members 34 and 35, the movement of the second rotation support member 35 is blocked by the winding tube 14. When the bearing sleeve 43 is moved toward the first rotation support member 34 in a state where the second rotation support member 35 cannot move, the second spring 46 contracts and the brake shoe 57 is pressed against the second rotation support member 35. . The operation lever 51 connected to the bearing sleeve 43 functions to prevent the bearing sleeve 43 from rotating. Therefore, by pressing the bearing sleeve 43 against the second rotation support member 35, a frictional force can be generated between them, and the rotation of the second rotation support member 35 can be stopped.

  By supplying compressed air to the cylinder 50 by the package brake mechanism 60 configured as described above, it is possible to brake the rotating package 15 and quickly stop the rotation.

  The package support frame 33 of the cradle 20 is attached to the main body frame 16 so as to be rotatable about the rotation shaft 41 (FIG. 1). The rotating shaft 41 is provided with a contact pressure adjusting mechanism that adjusts the contact pressure between the package 15 supported by the cradle 20 and the winding drum 21. Thereby, the package 15 supported by the cradle 20 is pressed against the winding drum 21 with a predetermined contact pressure, and the contact state between the package 15 and the winding drum 21 can be maintained well.

  Further, a lift-up mechanism (not shown) is connected to the rotation shaft 41. The lift-up mechanism is configured so that the cradle 20 can be rotated in a direction in which the package 15 is separated from the winding drum 21.

  Then, the characteristic structure of the automatic winder of this embodiment is demonstrated.

  As described above, when the winding tube 14 of the package 15 is deformed due to damage, an abnormality (such as rattling) occurs in the support state of the rotationally driven package 15 and adversely affects the quality of the package 15. May reach.

  The inventor of the present application repeated the experiment and observation of winding the yarn 12 around the package 15 in the actual yarn winding unit 10, and as a result, when an abnormality such as rattling occurs in the support state of the package 15, the rotation support member 34, It has been found that the distance between 35 varies. Since the rotation support members 34 and 35 are members that directly support the package 15, by monitoring the distance between the rotation support members 34 and 35, an abnormality in the support state of the package 15 (such as rattling). Can be detected directly and immediately.

  Therefore, the yarn winding unit 10 of the present embodiment includes a detection device 61 that acquires information regarding the distance between the rotation support members 34 and 35. The unit control unit is configured to control driving of the winding drum 21 based on the detection result of the detection device 61. Thereby, the rotation of the package 15 can be controlled according to the support state of the package 15.

  Next, the configuration of the detection device 61 will be described. As shown in FIG. 2, the detection device is provided in the cradle 20. The detection device 61 includes a magnet (detected member) 62 and a magnet sensor (detection unit) 63.

  The magnet sensor 63 is configured to detect the magnetism of the magnet 62 within a predetermined detection range. The magnet sensor 63 outputs an ON signal when the magnet 62 is within a predetermined detection range, and outputs an OFF signal when the magnet 62 is not within the detection range. The output signal of the magnet sensor 63 is input to the unit controller.

  As shown in FIG. 2, the magnet sensor 63 is attached to the middle part of the operation lever 51. On the other hand, the magnet 62 is attached to the middle part of the second arm portion 38. With this configuration, when the operation lever 51 rotates, the relative positional relationship between the magnet sensor 63 and the magnet 62 changes. When the magnet sensor 63 and the magnet 62 move relative to each other and the magnet 62 is out of the detection range, the output signal from the magnet sensor 63 is turned off. Therefore, by monitoring the output signal from the detection device 61, it is possible to detect that the operating lever 51 has rotated more than a certain amount from a predetermined position.

  Here, as described above, the operation lever 51 is for moving the second rotation support member 35 in the clamping direction. Therefore, when the second rotation support member 35 moves in the clamping direction, the operation lever 51 also rotates. . Therefore, when the detection device 61 detects that the operation lever 51 has rotated from a predetermined position by a certain amount or more, it can be detected that the second rotation support member 35 has moved from the predetermined reference position by a certain distance or more in the clamping direction. .

  In the present embodiment, the substantially U-shaped package support frame 33 is configured not to be deformed, and the first rotation support member 34 is immovable in the clamping direction. That is, the variation in the distance between the rotation support members 34 and 35 occurs only when the second rotation support member 35 moves in the clamping direction. Therefore, it is possible to know whether or not the distance between the rotation support members 34 and 35 is appropriate by detecting the movement of the second rotation support member 35 in the clamping direction from the reference position.

  Therefore, as described above, by detecting the rotation of the operation lever 51 by the detection device 61, information regarding the distance between the rotation support members 34 and 35 can be acquired.

  The detection device 61 is adjusted so that the magnet 62 is within the detection range of the magnet sensor 63 while the package 15 (winding tube 14) is appropriately supported by the rotation support members 34 and 35. That is, when the distance between the rotation support members 34 and 35 is appropriate and the support state of the package 15 is appropriate, the magnet sensor 63 is adjusted to output an ON signal. The position of the second rotation support member 35 in this state is referred to as a “reference position”.

  Note that when the length of the winding tube 14 in the axial direction is different, the distance between the rotation support members 34 and 35 in a state where the winding tube 14 is sandwiched is also different. That is, when the winding tube 14 is different, the reference position of the second rotation support member 35 is different. Therefore, in order to be able to cope with different types of winding tubes 14, the detection device 61 has an adjustment bracket (position adjustment mechanism) 64 that can adjust the attachment position of the magnet 62 in a direction parallel to the clamping direction. Yes. The magnet 62 is attached to the package support frame 33 via the adjustment bracket 64. By adjusting the position of the magnet 62 in the clamping direction, the zero point adjustment (adjustment of the position at which the output of the magnet sensor 63 is turned on) of the detection device 61 can be performed. Can also respond.

  When the second rotation support member 35 moves from the proper position in the clamping direction, the operation lever 51 is thereby rotated, and the magnet 62 and the magnet sensor 63 move relative to each other. In the present embodiment, the magnet 62 is adjusted so as to be out of the detection range of the magnet sensor 63 when the second rotation support member 35 moves from the proper position by 1 mm or more in the clamping direction. That is, when the distance between the rotation support members 34 and 35 fluctuates 1 mm or more from an appropriate value, the magnet sensor 63 is adjusted to output an OFF signal.

  The unit control unit is configured to function as a determination unit that determines whether or not the distance between the first rotation support member 34 and the second rotation support member 35 is appropriate based on a signal from the detection device 61. ing. Specifically, when the signal from the magnet sensor 63 of the detection device 61 is ON, it is determined that the distance between the rotation support members 34 and 35 is appropriate, and when the signal is OFF, the rotation support members 34 and 35 Judge that the distance between them is inappropriate.

  Next, the flow of the yarn winding operation by the automatic winder of this embodiment will be described with reference to the flowchart of FIG.

  When the unit 15 is rotating the package 15 and winding the yarn 12 (step S101), the unit controller monitors the output signal from the magnet sensor 63 of the detection device 61 (step S102). The unit control unit as the determination unit determines that the distance between the rotation support members 34 and 35 is appropriate when the signal from the magnet sensor 63 is ON. That is, in this case, it can be determined that the package 15 is appropriately supported by the rotation support members 34 and 35. While the unit controller determines that the distance between the rotation support members 34 and 35 is appropriate, the unit controller continues to rotate the package 15 and continue winding the yarn 12.

  On the other hand, when the signal from the magnet sensor 63 is turned OFF, the unit control unit as the determination unit determines that the distance between the rotation support members 34 and 35 is inappropriate. In this case, there is a high possibility that some abnormality (such as rattling of the package 15) has occurred in the support state of the package 15 by the rotation support members 34 and 35. Therefore, when the unit control unit determines that the distance between the rotation support members 34 and 35 is inappropriate, the unit control unit performs a process of changing the rotation state of the package 15.

  Specifically, when the unit control unit determines that the distance between the rotation support members 34 and 35 is inappropriate, the unit 15 separates the package 15 from the winding drum 21 by the lift-up mechanism (step S104). ) And the package brake mechanism 60 is operated to stop the rotation of the package 15 (step S105). As described above, when it is detected that the distance between the rotation support members 34 and 35 is inappropriate, the rotation of the package 15 is immediately stopped, and an abnormality such as rattling occurs in the package 15. It is possible to prevent the yarn 12 from being continuously wound in the state.

  In this embodiment, since it is comprised so that the information regarding the distance between the rotation support members 34 and 35 which support the package 15 may be detected, the support state of the package 15 can be detected directly and immediately. Therefore, when an abnormality occurs in the support state of the package 15, the abnormality can be detected immediately. Thereby, after an abnormality (such as rattling) occurs in the support state of the package 15, the rotation of the package 15 can be stopped before the quality of the package 15 is adversely affected.

  In addition, if the package 15 in a state where the yarn 12 is being wound is separated from the winding drum 21, the yarn 12 being wound may be shrunk. Therefore, in order to prevent the shrunken yarn from being mixed into the package 15, when the package 15 is separated from the winding drum 21, the yarn 12 is cut with a cutter in advance (step S103).

  After the rotation of the package 15 is stopped, the rotation of the package 15 may be resumed. This is because the backlash of the package 15 occurs due to a combination of various conditions, and it can not be said that the backlash does not necessarily reoccur even if the package 15 has once played back. Therefore, the unit controller performs the yarn joining operation by the yarn joining device 24 (step S107) and restarts the rotation of the package (step S108).

  However, when a support abnormality such as rattling occurs repeatedly in one package 15, there is some problem (for example, extreme deformation of the winding tube 14) in the package 15. it is conceivable that. Therefore, when the signal OFF from the magnet sensor 63 is continuously detected a predetermined number of times or more (determination in step S106), the unit controller stops in step S105 and does not restart the rotation of the package 15, The operator is notified by sounding an abnormal alarm (step S109).

  When the abnormal alarm is notified in this way, the operator visually checks the package 15 and, for example, when it is determined that the winding tube 14 is extremely deformed and reaches the use limit, the package 15 The winding of the yarn 12 to the end is finished. Further, when the operator visually confirms the package 15 and determines that the use of the winding tube 14 can be continued, for example, the rotation of the package 15 may be resumed with the rotation speed lowered. .

  As described above, the yarn winding unit 10 of the present embodiment includes the main body frame 16, the cradle 20, the detection device 61, and the unit controller. The cradle 20 includes a package support frame 33, a first rotation support member 34, and a second rotation support member 35. The package support frame 33 is attached to the main body frame 16. The first rotation support member 34 supports one end of the winding tube 14 in the clamping direction of the winding tube 14 of the package 15. The second rotation support member 35 supports the other end of the winding tube 14 of the package 15 in the clamping direction, and supports the package 15 together with the first rotation support member 34 in a rotatable manner. The detection device 61 detects information related to the distance between the rotation support members 34 and 35. The unit controller controls the rotation of the package 15 based on the detection result of the detection device 61.

  That is, since the winding tube 14 of the package 15 is sandwiched and supported by the pair of rotation support members 34 and 35, the information about the distance between the rotation support members 34 and 35 is detected to detect the package 15 ( And the support state of the winding tube 14) can be clearly grasped. Therefore, with the above configuration, when the package 15 is rattled, the rattle can be immediately detected and dealt with appropriately.

  Further, in the yarn winding unit 10 of the present embodiment, the package support frame 33 includes a support frame main body 36 that is rotatably provided with respect to the main body frame 16, and a first support frame main body 36 that extends from the support frame main body 36. 1 arm part 37 and 2nd arm part 38 are provided. The first rotation support member 34 is attached to the first arm portion 37 so as not to move in the clamping direction. The second rotation support member 35 is attached to the second arm portion 38 so as to be movable in the clamping direction. The detection device 61 detects position information of the second rotation support member 35 as information related to the distance between the rotation support members 34 and 35.

  That is, since the position of the first rotation support member 34 is fixed, the interval between the rotation support members 34 and 35 can be known only by detecting the position of the movable second rotation support member 35.

  In the yarn winding unit 10 of the present embodiment, the detection device 61 includes a magnet 62 and a magnet sensor 63 for detecting the position of the magnet. The relative positional relationship between the magnet 62 and the magnet sensor 63 is provided so as to change according to the variation in the distance between the rotation support members 34 and 35. The unit control unit as the determination unit determines whether or not the distance between the rotation support members 34 and 35 is appropriate based on the detection state of the magnet 62 by the magnet sensor 63.

  As described above, based on the detection state of the magnet sensor 63, it can be easily determined whether or not the distance between the rotation support members 34 and 35 is appropriate. Thereby, it can be known whether the support state of the package 15 supported by the rotation support members 34 and 35 is appropriate.

  In the yarn winding unit 10 of the present embodiment, the magnet sensor 63 moves in conjunction with the movement of the second rotation support member 35 in the clamping direction. The magnet 62 is attached to the cradle 20 so as not to move in conjunction with the movement of the second rotation support member 35 in the clamping direction. The detection device 61 has an adjustment bracket 64 that can adjust the attachment position of the magnet 62 in a direction parallel to the clamping direction.

  With this configuration, the position of the second rotation support member 35 in the clamping direction can be detected by the magnet sensor 63. Since the attachment position of the magnet 62 in the clamping direction can be adjusted, the zero point of the detection device 61 can be easily adjusted in the clamping direction. Therefore, for example, when the length in the clamping direction of the winding tube 14 sandwiched by the rotation support members 34 and 35 is changed, by adjusting the zero point of the detection device 61, the winding having the length changed. It can correspond to the tube 14.

  In the yarn winding unit 10 of the present embodiment, the determination unit determines that the distance between the rotation support members 34 and 35 is based on the detection state of the magnet sensor that detects the magnetism of the magnet that exists within a predetermined range. Judging whether it is appropriate or not.

  In this way, it is possible to detect whether or not the distance between the rotation support members 34 and 35 is appropriate by the inexpensive magnet sensor 63.

  In the yarn winding unit 10 of the present embodiment, an extendable / contracting portion 42 that is extendable and contractible in a direction parallel to the clamping direction is disposed between the second arm portion 38 and the second rotation support member 35. The first arm portion 37 and the second arm portion 38 are fixedly provided to the support frame main body 36, respectively, and the second rotation support member 35 moves in the clamping direction by the expansion and contraction of the expansion and contraction portion 42.

  Thus, by providing the telescopic part 42, the second rotation support member 35 can be moved in the clamping direction. For example, the package 15 is released by releasing the clamping of the package 15 by the rotation support members 34, 35. Can be removed. In addition, since the first arm portion 37 and the second arm portion 38 are fixedly configured, members that move when an abnormality occurs in the sandwiched state of the package 15 are connected to the telescopic portion 42 and the second rotation support member 35. Limited. Therefore, by detecting the position of the second rotation support member 35, it is possible to reliably detect a change in the distance between the rotation support members 34 and 35.

  Further, the yarn winding unit 10 of this embodiment includes an operation lever 51. The operation lever 51 is attached to the package support frame 33 so as to be rotatable about the support shaft 52 and is connected to the extendable portion 42. The detection device 61 detects the position of the operation lever 51 as position information of the second rotation support member 35.

  By rotating the operation lever 51, the telescopic part 42 can be expanded and contracted, and the second rotation support member 35 can be moved in the clamping direction, so that the package 15 can be easily attached and detached. Since the operation lever 51 moves in conjunction with the expansion / contraction of the expansion / contraction part 42, the position of the second rotation support member 35 can be acquired by detecting the position of the operation lever 51.

  In the yarn winding unit 10 of the present embodiment, when the unit control unit determines that the support state of the package 15 is abnormal based on the detection result of the detection device 61, the unit control unit stops the rotation of the package 15. ing.

  That is, according to the configuration of the present embodiment, the support state of the package 15 can be detected directly and clearly, so that the rotation of the package 15 can be quickly stopped when an abnormality occurs. Thereby, it is possible to prevent a defective package from being formed due to an abnormality in the support state of the package 15.

  The automatic winder according to the present embodiment includes a plurality of the yarn winding units 10 described above.

  That is, according to the configuration of the present embodiment, when an abnormality such as rattling occurs in the package 15 in the yarn winding unit 10, the abnormality is immediately detected based on the detection result of the detection device 61, and appropriately Since this can be dealt with, the production efficiency of the entire automatic winder can be improved.

  Next, a modification of the above embodiment will be described. In the following description, the same or similar members as those in the above-described embodiment may be denoted by the same reference numerals and the description thereof may be omitted.

  In the above-described embodiment, information related to the distance between the rotation support members 34 and 35 is detected based on the ON / OFF signal of the magnet sensor 63. Thereby, the abnormality of the support state of the package 15 can be detected by an inexpensive sensor. However, with this configuration, it is possible to obtain only two-stage information indicating whether the support state of the package 15 is normal or abnormal.

  Thus, as a modification of the above-described embodiment, it is conceivable that the detection device 61 is configured to be able to detect the amount and direction of movement of the second rotation support member 35 from the reference position. As this detection device, for example, a linear encoder having a plurality of detection positions in the clamping direction can be employed. By detecting the position of the second rotation support member 35 with a linear encoder having a plurality of detection positions, the amount of movement of the second rotation support member 35 from the reference position can be detected in multiple stages. Further, the moving direction from the reference position (whether moved in the direction approaching the first rotation support member 34 or moved away) can also be detected.

  Thus, by making the position of the second rotation support member 35 detectable in multiple stages, the distance between the rotation support members 34 and 35 can be detected in multiple stages. Thereby, the support state of the package 15 can be detected in more detail.

  That is, in the above-described embodiment, only two-stage information indicating whether the support state of the package 15 is normal or abnormal can be obtained. However, if the distance between the rotation support members 34 and 35 is configured to be detected in multiple stages, information indicating “in what state the package 15 is supported” can be acquired in multiple stages in real time.

  For example, when damage is accumulated in the take-up tube 14 of the package 15 and the take-up tube 14 is deformed, the rotation support member is inserted into the take-up tube 14, and the space between the rotation support members 34 and 35. The distance gets shorter. Therefore, if the distance between the rotation support members 34 and 35 is detected in real time in multiple stages during the rotation of the package 15, it is possible to detect in real time how much the winding tube 14 is deformed. is there.

  As described above, if the detection device 61 is configured so that the position of the second rotation support member 35 can be detected in multiple stages, the distance between the rotation support members 34 and 35 can be detected in multiple stages. It is possible to perform appropriate winding by closely monitoring the support state.

  As described above, in the yarn winding unit 10, the detection device 61 can detect the movement distance and the movement direction from the reference position of the second rotation support member 35 in the clamping direction.

  As described above, since the movement amount of the second rotation support member 35 can be detected, the support state of the package 15 can be detected more accurately. In addition, it is possible to detect in which direction the second rotation support member 35 moves in the direction approaching the first rotation support member 34 or the direction away from the first rotation support member 34.

  In the yarn winding unit 10, the detection device 61 preferably has a plurality of detection positions.

  Thereby, since the position of the 2nd rotation support member 35 can be detected in multiple steps, the support state of the package 15 can be evaluated in multiple steps.

  The preferred embodiments and modifications of the present invention have been described above, but the above configuration can be modified as follows, for example.

  The present invention is not limited to an automatic winder, and can be widely applied to a yarn winding machine that winds a yarn around a package that is driven to rotate.

  In the above embodiment, the U-shaped package support frame 33 is configured not to be deformed. However, for example, as illustrated in FIG. 5 of Patent Document 1, a part of the package support frame is configured to be deformed. May be.

  In the above embodiment, the magnet sensor (detection unit) 63 is attached to the operation lever 51 and the magnet (detected member) 62 is attached to the package support frame 33. However, the detected member is attached to the operation lever 51 and the detection unit is packaged. Of course, it may be attached to the support frame 33.

  In the above embodiment, the detection device 61 is configured to detect the position of the operation lever 51. However, the present invention is not limited thereto. For example, the magnet sensor 63 or the magnet 62 may be provided on the bearing sleeve 43 of the extendable portion 42 and the other is attached to the package support frame 33, and the magnet sensor 63 may detect the magnet 62. good. Thus, even if it is the structure which detects the expansion-contraction of the expansion-contraction part 42 by the detection apparatus 61, the effect similar to the said embodiment can be acquired.

  Of course, if possible, a magnet 62 may be provided on the second rotation support member 35 and the position of the second rotation support member 35 may be detected by the magnet sensor 63. With this configuration, the position of the second rotation support member 35 can be directly detected by the detection device 61. However, since the second rotation support member 35 rotates at a high speed, it is difficult to attach the detected member (magnet 62) or the detection unit (magnet sensor 63). Therefore, the structure which provides the detection apparatus 61 in the operation lever 51 grade | etc., Like the said embodiment is simple.

  In addition, the arrangement positions of the detection unit and the detection target member are not particularly limited. If either the detection unit or the detected member moves in conjunction with the movement of the second rotation support member 35 in the clamping direction and is fixed so that the other does not move, the detection unit and the detected member The position of the second rotation support member 35 can be detected.

  The detection device 61 is not limited to a magnet type, and various sensors can be used. For example, an optical distance sensor may be employed for the detection device 61. The detection device 61 includes, for example, a projector (detection unit) and a reflection member (a member to be detected), reflects light projected from the projector by the reflection member, and determines the distance to the reflection member based on the reflected light. Measure. If either the projector or the reflecting member is provided so as to be interlocked with the movement of the second rotation support member 35 in the holding direction and the other is fixed to the package support frame 33, the second rotation is performed in the same manner as in the above embodiment. The position of the support member 35 can be detected.

  Moreover, the optical distance sensor can arrange | position a projector (detection part) and a reflection member (detected member) apart. Thus, in the case of the detection device 61 in which the detection unit and the member to be detected can be arranged apart from each other, the distance between the rotation support members 34 and 35 may be directly detected by the detection device 61. That is, either one of the projector (detection unit) or the reflection member (detected member) is provided in the vicinity of the first rotation support member 34, and the other is provided in the vicinity of the second rotation support member 35. Further, either one of the projector and the reflecting member is provided so as to be interlocked with the movement of the second rotation support member 35 in the holding direction, and the other is fixed to the package support frame 33. According to this, the distance between the rotation support members 34 and 35 can be directly detected.

  Alternatively, the detection device 61 may be configured as a rotary encoder, and the rotary encoder may be disposed on the support shaft 52 of the operation lever 51 to detect the amount of rotation of the operation lever 51. The rotary encoder is relatively inexpensive and can detect the amount of rotation in multiple stages. By detecting the amount of rotation of the operation lever 51 in multiple stages, the position of the second rotation support member 35 can be detected in multiple stages. Therefore, information regarding the distance between the rotation support members 34 and 35 can be detected in multiple stages. Can be obtained.

  In the above embodiment, the first rotation support member 34 supports the small diameter side of the take-up tube 14, and the second rotation support member 35 supports the large diameter side of the take-up tube 14. However, the present invention is not limited to this, and the first rotation support member 34 may support the large diameter side of the winding tube 14, and the second rotation support member 35 may support the small diameter side of the winding tube 14. However, the winding tube 14 supported by the cradle 20 is not limited to a cone type (tapered shape) but may be a cheese type (cylindrical shape).

  In the above embodiment, since it is assumed that the first rotation support member 34 does not move in the clamping direction, information on the distance between the rotation support members 34 and 35 is detected by detecting the position of the second rotation support member 35. Can be obtained. However, when the first rotation support member 34 is configured to be movable in the clamping direction, the distance between the rotation support members 34 and 35 can be accurately determined only by detecting the position of the second rotation support member 35. I can't know. Therefore, in such a case, one of the detected member or the detection unit of the detection device 61 is arranged to move in conjunction with the movement of the first rotation support member 34 in the clamping direction, and the other is rotated in the second rotation. What is necessary is just to arrange | position so that it may move in connection with the movement to the clamping direction of the support member 35. FIG.

  In the above embodiment, the rotation of the package 15 is stopped when an abnormality such as rattling occurs in the support state of the package 15. However, there is a case where the rattling can be suppressed by adding some change to the rotation state of the package 15 without stopping the rotation of the package 15. Therefore, the rotation of the package 15 does not necessarily have to be stopped just because an abnormality occurs in the support state of the package 15. For example, when an abnormality occurs in the support state of the package 15, control may be performed so as to reduce the rotational speed of the package 15 by reducing the drive speed of the winding drum 21 that is the drive unit. When the rotation of the package 15 is not stopped in this way, the yarn cutting described in step S103 in FIG. 4 can be omitted.

10 Thread winding unit 14 Winding tube 15 Package 16 Body frame 20 Cradle (package support)
21 Winding drum (drive unit)
33 Package Support Frame 34 First Rotation Support Member 35 Second Rotation Support Member 61 Detector

Claims (11)

Body frame,
A package support frame attached to the main body frame, a first rotation support member for supporting one end of the winding tube in the clamping direction of the winding tube of the package, and the other end of the winding tube of the package in the clamping direction. A package support unit comprising: a second rotation support member that supports and rotatably supports the package together with the first rotation support member;
A detection device that detects information about a distance between the first rotation support member and the second rotation support member;
A control unit for controlling rotation of the package based on a detection result of the detection device;
A yarn winding unit comprising: The yarn winding unit according to claim 1,
The package support frame includes a support frame body provided rotatably with respect to the body frame, and a first arm part and a second arm part provided extending from the support frame body,
The first rotation support member is attached to the first arm part so as not to move in the clamping direction,
The second rotation support member is attached to the second arm part so as to be movable in the clamping direction,
The yarn winding unit, wherein the detection device detects position information of the second rotation support member as information about a distance between the first rotation support member and the second rotation support member. The yarn winding unit according to claim 2,
The detection device is:
A detected member;
A detection unit for detecting the position of the detected member;
With
The relative positional relationship between the detected member and the detection unit is provided so as to change according to a change in the distance between the first rotation support member and the second rotation support member,
A yarn winding device comprising: a determination unit that determines whether a distance between the first rotation support member and the second rotation support member is appropriate based on a detection state of the detected member by the detection unit. unit. The yarn winding unit according to claim 3,
Either one of the detected member and the detection unit moves in conjunction with the movement of the second rotation support member in the clamping direction,
The other is attached to the package support so as not to move in conjunction with the movement of the second rotation support member in the clamping direction,
The detecting device includes a position adjustment mechanism capable of adjusting an attachment position in a direction parallel to the clamping direction of at least one of the detected member and the detecting unit. . The yarn winding unit according to claim 3 or 4,
The detected member is a magnet,
The detection unit is a magnet sensor that detects the magnetism of the magnet existing within a predetermined range,
The determination unit determines whether a distance between the first rotation support member and the second rotation support member is appropriate based on a detection state of the magnet by the magnet sensor. unit. The yarn winding unit according to claim 3 or 4,
The yarn winding unit, wherein the detection device is capable of detecting a movement distance and a movement direction from a reference position of the second rotation support member in the clamping direction. The yarn winding unit according to claim 6,
The yarn winding unit, wherein the detection device has a plurality of detection positions. A yarn winding unit according to any one of claims 2 to 7,
Between the second arm part and the second rotation support member, an extendable part that can be extended and contracted in a direction parallel to the clamping direction is disposed.
The first arm portion and the second arm portion are fixedly provided to the support frame main body, respectively, and the second rotation support member moves in the clamping direction by expansion and contraction of the expansion and contraction portion. Yarn winding unit. The yarn winding unit according to claim 8,
It is attached to the package support frame so as to be rotatable around a support shaft, and includes an operation lever connected to the extendable part.
The yarn winding unit, wherein the detection device detects a position of the operation lever as position information of the second rotation support member. A yarn winding unit according to any one of claims 1 to 9,
When the control unit determines that the support state of the package is abnormal based on the detection result of the detection device, the control unit changes the rotation state of the package.   A yarn winding machine comprising a plurality of the yarn winding units according to any one of claims 1 to 10.

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