JP2012086925A - Bobbin installation device and yarn winding apparatus including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bobbin installation device which has a simple structure and can fix a yarn to a bobbin to be supplied to a target position.SOLUTION: The bobbin installation device 60 includes a bobbin supplying part 50 and a suction pipe 88. The bobbin supplying part 50 supplies the bobbin 48 for winding a spun yarn to a bobbin holder 72 (specifically, a position between a pair of bobbin holders 72) as a target position. The suction pipe 88 catches and guides the spun yard to be wound on the bobbin 48 supplied by the bobbin supplying part 50. The bobbin 48 and the spun yard are supplied to the bobbin holder 72 by moving the bobbin supplying part 50 and the suction pipe 88 in such a state that the spun yard is located on the end part in the axial direction of the bobbin 48 by the suction pipe 88.

Description

  The present invention mainly relates to a bobbin setting device that sets a bobbin for winding a thread at a target position.

  Conventionally, the bobbin is supplied to the bobbin holding portion of the spinning machine at the start of the winding operation of the yarn by the spinning machine or after the full package is discharged from the spinning machine. A bobbin setting device that performs preparation (bunch winding or the like) is known. Patent Document 1 discloses a spinning machine equipped with this type of bobbin setting device.

  The spinning machine of Patent Document 1 performs bunch winding on the bobbin after supplying the bobbin to the cradle. This bunch winding is performed as follows. That is, the cradle includes a bobbin holder for holding both ends of the bobbin, but when the bobbin is supplied to the cradle, the distance between the two bobbin holders is longer than the axial length of the bobbin. . Therefore, when the bobbin is supplied to the cradle, a predetermined gap is generated between the bobbin and the bobbin holder.

  The suction pipe included in the bobbin setting device captures the yarn sent out by the spinning device and guides the captured yarn to a gap formed between the bobbin and the bobbin holder. In this state, the bobbin setting device moves the bobbin holder so as to eliminate the gap and sandwiches the thread between the bobbin holder and the bobbin. The bobbin setting device performs bunch winding by bringing a driving roller for performing bunch winding into contact with the bobbin and rotating the bobbin.

Japanese Patent Laid-Open No. 2005-211988

  However, in the configuration of Patent Document 1, it is necessary to adjust the positional relationship between the bobbin and the bobbin holder so that the bobbin does not collide with the bobbin holder when the bobbin is supplied to the cradle. In addition, after the bobbin is supplied to the cradle, the bobbin, the bobbin holder, and the positional relationship of the thread are continuously adjusted in order to generate an appropriate gap between the bobbin and the bobbin holder and guide the thread into the gap. There was a need. Therefore, complicated adjustment work is required, the configuration of the bobbin setting device is complicated, and it is difficult to shorten the cycle time.

  Further, from the viewpoint of reducing the size of the entire spinning machine, the gap that can be formed between the bobbin and the bobbin holder cannot be made too large. Therefore, the bobbin setting device is required to have high positional accuracy in order to guide the yarn into a narrow gap, which causes an increase in cost. Further, the bobbin setting device cannot properly guide the yarn into the gap, and the winding unit may not be able to start winding the package.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a bobbin setting device capable of fixing a thread to a bobbin supplied to a target position with a simple configuration.

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 a first aspect of the present invention, a bobbin setting device having the following configuration is provided. That is, the bobbin setting device includes a bobbin supply unit and a yarn catching and guiding device. The bobbin supply unit supplies a bobbin for winding the yarn to the target position. The yarn catching and guiding device catches and guides a yarn to be wound around the bobbin supplied by the bobbin supply unit. With the yarn catching and guiding device moving the bobbin supply portion and the yarn catching and guiding device with the yarn positioned at the axial end of the bobbin, the bobbin and the yarn are brought to the target position. Supplied against.

  That is, when the yarn is guided after the bobbin is supplied to the target position, it is necessary to consider the relative positional relationship among the three elements of the bobbin, the target position, and the yarn, which complicates the configuration of the bobbin setting device. In this regard, in the above configuration, the bobbin and the thread whose positional relationship is determined at the target position are supplied after the positional relationship between the two elements of the bobbin and the thread is determined. As a result, the configuration of the bobbin setting device can be simplified, and the yarn and bobbin can be appropriately guided to the target position.

  The bobbin setting device preferably has the following configuration. That is, the yarn catching and guiding device moves to a standby position and stands by while catching the yarn. The bobbin supply unit catches the yarn caught by the yarn catching guide device waiting at the standby position in the middle of supplying the bobbin to the target position, and the bobbin supply unit catches the yarn at the axial end of the bobbin. Position the thread.

  Thereby, the bobbin setting device can perform the operation of arranging the yarn at the axial end of the bobbin and the operation of supplying the bobbin to the target position in one operation. Therefore, the bobbin setting device can quickly set the bobbin at the target position.

  In the bobbin setting device, it is preferable that the bobbin supply unit includes a yarn guide unit that guides the yarn to an axial end portion of the bobbin.

  Accordingly, the yarn can be easily positioned at the axial end portion of the bobbin by the yarn guide portion, so that the bobbin setting device can further reduce yarn guiding errors with respect to the bobbin.

  In the bobbin setting device, the bobbin supply unit includes a cutting unit that cuts the yarn at a position between the bobbin supplied to the target position and the yarn catching and guiding device.

  Since the cutting unit is provided in the bobbin supply unit, the bobbin setting device can quickly perform the cutting operation after supplying the bobbin to the target position. In addition, when the bobbin supply unit is not provided with the cutting unit, a mechanism for moving the cutting unit to a position where the yarn should be cut and retracting the yarn after cutting is required. However, by adopting the above-described configuration, those members can be omitted and the configuration of the entire bobbin setting device can be made compact.

  In the bobbin setting device, the yarn catching guide device is capable of catching the yarn by a suction flow, and when the yarn is cut by the cutting portion, the yarn waste of the cut yarn is sucked and discarded. It is preferable that it is comprised.

  Thereby, the bobbin setting device can prevent the yarn waste generated when the bobbin and the yarn are supplied to the target position from falling on the floor surface or the like.

  In the bobbin setting device, it is preferable that the bobbin supply unit includes a bunch winding roller for performing bunch winding on the bobbin.

  Thereby, since the bobbin supply part is equipped with the bunch winding roller, after supplying the bobbin to the target position, it is possible to quickly shift to the bunch winding operation. Further, when the bunch winding roller is not provided in the bobbin supply unit, a mechanism for bringing the bunch winding roller into contact with the bobbin at the time of bunch winding and retracting it so as not to get in the way when not necessary is required. However, by adopting the above-described configuration, those members can be omitted and the configuration of the entire bobbin setting device can be made compact.

  In the bobbin setting device, the bobbin supply unit guides the yarn to a position between both axial end portions of the bobbin supplied to the target position when the bobbin is bunch-wound by the bunch winding roller. It is preferable to provide a yarn hooking portion.

  As a result, both the case where the yarn hooking portion hooks the yarn at the axial end portion of the bobbin and maintains the position of the yarn and the case where the yarn is guided to a predetermined position on the bobbin when the bunch is wound. Can be effective. The bobbin setting device can be made compact compared to a configuration in which these are achieved by separate members.

  According to the 2nd viewpoint of this invention, the yarn winding machine of the following structures is provided. That is, the yarn winding machine includes the bobbin setting device and a winding unit. The winding unit includes: a bobbin holding unit that holds the bobbin supplied from the bobbin setting device; and a winding device that winds a thread around the bobbin held by the bobbin holding unit to form a package. Prepare.

  Thereby, the bobbin setting device can simultaneously supply the bobbin and the thread to the bobbin holding portion. As a result, bobbin and yarn guide errors caused by the bobbin setting device can be reduced, and the winding efficiency of the yarn winding machine can be improved.

  In the yarn winding machine, it is preferable that the bobbin setting device includes an operation unit that operates the bobbin holding unit to remove the package from the bobbin holding unit.

  That is, when the package is removed from the bobbin holding portion, in principle, a bobbin supplying operation to the bobbin holding portion is required to form a new package. In this regard, in the above-described configuration, both operations can be performed by the bobbin setting device, so that the configuration of the yarn winding machine can be made compact.

  In the yarn winding machine, it is preferable that the bobbin setting device includes an adjustment unit capable of adjusting a path of the bobbin when the bobbin is supplied to the bobbin holding unit by the bobbin supply unit.

  Thereby, the yarn winding machine can adjust the bobbin path so that the bobbin passes through an appropriate path according to the shape of the bobbin to be supplied. By performing this adjustment, the bobbin supplied by the bobbin setting device can be prevented from colliding with the bobbin holding portion.

  The yarn winding machine preferably has the following configuration. That is, the winding units are arranged side by side in a certain direction. The bobbin setting device can travel along a direction in which the winding units are arranged.

  Thereby, compared with the structure which installs a bobbin set apparatus for every winding unit, the installation number of bobbin set apparatuses can be reduced and cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which showed the whole structure of the spinning machine which concerns on one Embodiment of this invention. The longitudinal cross-sectional view of a spinning machine. The perspective view which showed the structure of the bobbin supply part at the time of bobbin supply. The figure which showed the shape and arrangement | positioning of a thread | yarn guide part, a thread hooking groove, and a cutter. The longitudinal cross-sectional view which shows a mode that the spun yarn is captured by the suction pipe while performing the doffing operation of the full-package. The longitudinal cross-sectional view which shows a mode that a suction pipe moves to a standby position and waits, attracting | sucking spun yarn. The longitudinal cross-sectional view which shows a mode that spun yarn is arrange | positioned in the axial direction edge part of the said bobbin in the process in which a bobbin is supplied to a cradle. The longitudinal cross-sectional view which shows the mode at the moment when the bobbin by which the spun yarn was arrange | positioned at the axial direction edge part was supplied to the cradle. The figure which shows a mode that spun yarn is guided at the time of bunch winding.

  Next, a spinning machine (yarn winding machine) according to an embodiment of the present invention will be described with reference to the drawings. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the yarn during spinning. FIG. 1 is a front view showing the overall configuration of the spinning machine 1, and FIG. 2 is a longitudinal sectional view of the spinning machine 1.

  A spinning machine 1 as a yarn winding machine shown in FIG. 1 includes a large number of spinning units (winding units) 2 arranged side by side. The spinning machine 1 includes a yarn joining cart 3, a doffing cart 4, a blower box 93, and a prime mover box 5.

  As shown in FIG. 1, each spinning unit 2 includes a draft device 7, a spinning device 9, a yarn storage device 12, and a winding device 13 as main components in order from upstream to downstream. Yes. The draft device 7 is provided in the vicinity of the upper end of the frame 6 provided in the spinning machine 1. The fiber bundle 8 sent from the draft device 7 is spun by the spinning device 9. The spun yarn 10 delivered from the spinning device 9 passes through a yarn clearer 49 described later, and further passes through the yarn storage device 12. The package 45 is formed by winding the spun yarn 10 onto the bobbin 48 by the winding device 13.

  The draft device 7 is for drawing the sliver 15 into the fiber bundle 8. As shown in FIG. 2, the draft device 7 includes four rollers: a back roller 16, a third roller 17, a middle roller 19 to which an apron belt 18 is attached, and a front roller 20.

  Although a detailed configuration of the spinning device 9 is not illustrated, in the present embodiment, a pneumatic type that generates a spun yarn 10 by twisting the fiber bundle 8 using a swirling airflow is adopted.

  A yarn accumulating device 12 is provided downstream of the spinning device 9. This yarn storage device 12 has a function of applying a predetermined tension to the spun yarn 10 and pulling it out from the spun device 9, and the spun yarn 10 sent out from the spinning device 9 at the time of yarn splicing by the yarn splicing carriage 3, for example. And the function of adjusting the yarn tension so that the fluctuation of the yarn tension on the winding device 13 side is not transmitted to the spinning device 9 side. As shown in FIG. 2, the yarn accumulating device 12 includes a yarn accumulating roller 21, a yarn engaging member 22, an upstream guide 23, and an electric motor 25.

  The yarn engaging member 22 is configured to be able to engage (hang) with the spun yarn 10, and rotates integrally with the yarn accumulating roller 21 while being engaged with the spun yarn 10, thereby the yarn The spun yarn 10 can be guided to the outer peripheral surface of the storage roller 21.

  The yarn storage roller 21 is configured so that the spun yarn 10 can be wound around and stored on the outer peripheral surface thereof. The yarn accumulating roller 21 is rotationally driven by the electric motor 25 at a constant rotational speed.

  The yarn engaging member 22 is supported so as to be rotatable relative to the yarn accumulating roller 21, and the yarn engaging member 22 is made relative to the yarn accumulating roller 21 by a torque generating means such as a magnetic means. Torque that resists rotation (resistance torque) is generated. In this configuration, when the yarn engaging member 22 is engaged with the spun yarn 10, if the tension applied to the spun yarn 10 is strong enough to overcome the resistance torque, the yarn engaging member 22 is independent of the yarn accumulating roller 21. The spun yarn 10 is unwound from the yarn accumulating roller 21. On the other hand, if the tension applied to the spun yarn 10 is weaker than the resistance torque, the yarn engaging member 22 rotates integrally with the yarn accumulating roller 21 and winds the spun yarn 10 around the yarn accumulating roller 21.

  As described above, the yarn storage device 12 winds the spun yarn 10 when the tension of the spun yarn 10 decreases (the spun yarn 10 seems to loosen), and releases the spun yarn 10 when the tension of the spun yarn 10 increases. By operating in this manner, the slack of the spun yarn 10 can be eliminated and an appropriate tension can be applied. Further, as described above, the yarn engaging member 22 works so as to absorb the variation in the tension applied to the spun yarn 10 between the yarn accumulating device 12 and the winding device 13, so that the variation in the tension is caused by the spinning device 9. Can be prevented from affecting the spun yarn 10 between the yarn storage device 12 and the yarn storage device 12. Thereby, the yarn accumulating device 12 can draw the spun yarn 10 from the spinning device 9 by the yarn accumulating device 12 at a more stable speed.

  The upstream guide 23 is disposed slightly upstream of the yarn accumulating roller 21. The upstream guide 23 is configured as a guide member that appropriately guides the spun yarn 10 with respect to the outer peripheral surface of the yarn accumulating roller 21. Further, the upstream guide 23 also serves as a twist stopper that prevents the twist of the spun yarn 10 transmitted from the spinning device 9 from being transmitted to the downstream side of the upstream guide 23.

  A yarn clearer 49 is provided on the front side of the frame 6 of the spinning machine 1 and at a position between the spinning device 9 and the yarn storage device 12. The spun yarn 10 spun by the spinning device 9 passes through the yarn clearer 49 before being wound by the yarn accumulating device 12. The yarn clearer 49 is configured to monitor the thickness of the traveling spun yarn 10 and transmit a yarn defect detection signal to a unit controller (not shown) when a yarn defect of the spun yarn 10 is detected. The yarn clearer 49 may be configured to detect the presence or absence of foreign matter contained in the spun yarn 10 in addition to the abnormal thickness of the spun yarn 10.

  Upon receipt of the yarn defect detection signal from the yarn clearer 49, the unit controller immediately cuts the spun yarn 10 by stopping the draft device 7 while driving the winding device 13, and further cuts the spun yarn 10, the draft device 7, the spinning device 9, etc. Stop. Further, the unit controller sends a control signal to the yarn splicing carriage 3 so as to travel to the front of the spinning unit 2. Thereafter, the unit controller drives the spinning device 9 and the like again to cause the yarn joining cart 3 to perform yarn joining and resume winding. At this time, the yarn accumulating device 12 causes the yarn accumulating roller 21 to retain the spun yarn 10 continuously sent from the spinning device 9 until the winding is resumed after the spinning device 9 resumes spinning. Thus, the slack of the spun yarn 10 is configured.

  As shown in FIGS. 1 and 2, the yarn joining cart 3 includes a splicer (yarn joining device) 43, a suction pipe 44, a suction mouth 46, and traveling wheels 42. When yarn breakage or yarn breakage occurs in a spinning unit 2, the yarn joining cart 3 drives the running wheels 42 and runs on the running lane 41 fixed to the frame 6. The yarn joining cart 3 is configured to stop and perform yarn joining in front of the spinning unit 2 in which yarn breakage or yarn cut has occurred.

  The suction pipe 44 is rotatable up and down around an axis, and is configured to suck and capture the yarn end (upper yarn) fed from the spinning device 9 and guide it to the splicer 43. . The suction mouse 46 is pivotable in the vertical direction about the axis so that the yarn end (lower yarn) is sucked and captured from the package 45 supported by the winding device 13 and can be guided to the splicer 43. It is configured. Although a detailed configuration of the splicer 43 is omitted, the splicer 43 is configured to splice the upper yarn and the lower yarn by twisting the yarn ends together by a swirling air flow.

  The winding device 13 includes a cradle 70. The cradle 70 includes a support shaft 73, a cradle arm 71 that can rotate around the support shaft 73, and a bobbin holder (bobbin holding portion) 72 that can hold both ends of the bobbin 48.

  The winding device 13 includes a winding drum 74 and a traverse guide 76 that can be engaged with the spun yarn 10. The winding drum 74 is configured to be able to be driven in contact with the outer peripheral surface of the package 45 formed by winding the bobbin 48 and the spun yarn 10 thereon. The winding device 13 rotates the package 45 in contact with the winding drum 74 by driving the winding drum 74 by an electric motor (not shown), and reciprocates the traverse guide 76 by a driving means (not shown) The spun yarn 10 is wound while traversing.

  An unillustrated spring is attached to the cradle arm 71, and this spring constantly applies an urging force in the standing direction to the cradle arm 71. Accordingly, as the spun yarn 10 is wound around the bobbin 48 and the package 45 is rolled up, the cradle arm 71 falls to the front side of the apparatus, and the shaft position of the package 45 moves forward. The cradle arm 71 is connected to a driving unit (for example, a cylinder) (not shown), and positively moves the cradle arm 71 away from the take-up drum 74 and in a direction closer to the take-up drum 74 according to commands from the unit controller. It can also be controlled to rotate.

  As shown in FIGS. 1 and 2, the doffing cart 4 includes a bobbin setting device 60. The bobbin setting device 60 performs a bobbin setting operation for supplying the bobbin 48 to the cradle 70 to prepare for winding the spun yarn 10, and a doffing operation for removing the fully wound package 45 from the cradle 70. It is configured to be possible. The doffing cart 4 includes a traveling wheel 92 at the lower portion thereof, and upon receiving an instruction to perform a bobbin setting operation or a doffing operation with respect to a certain spinning unit 2, a traveling path 91 formed in the frame 6 is provided. Travel up to the spinning unit 2. Then, the doffing cart 4 stops in front of the spinning unit 2 that has received the instruction, and performs bobbin setting work or doffing work (or both work).

  The bobbin setting device 60 includes a bobbin supply unit 50, a suction pipe (yarn catching and guiding device) 88, and a cradle operation arm (operation unit) 89 as a configuration for performing the bobbin setting operation.

  The suction pipe 88 is configured to be rotatable and extendable, and captures the spun yarn 10 discharged from the spinning device 9 by suction, and guides the captured spun yarn 10 to the winding device 13. Is to do.

  The bobbin supply unit 50 is configured to be rotatable about the swing shaft 111 and is configured to be able to grip the bobbin 48 by the bobbin gripping unit 52. With this configuration, the bobbin supply unit 50 can be rotated while the bobbin 48 is gripped, and the bobbin 48 can be supplied to a position (target position) between the pair of bobbin holders 72 included in the cradle 70. The bobbin supply unit 50 includes a bunch winding roller 53 for performing bunch winding. Here, bunch winding refers to winding the spun yarn 10 around the bobbin 48 in order to fix the spun yarn 10 to the bobbin 48. The detailed configuration of the bobbin supply unit 50 will be described later.

  The cradle operation arm 89 can operate the cradle arm 71 so that one bobbin holder 72 is separated from the other bobbin holder 72 (separation operation). As described above, the cradle arm 71 changes its posture as the spun yarn 10 is wound around the bobbin 48 and the package 45 is rolled up. In this respect, since the position of the cradle operating arm 89 can be changed by a cam mechanism or the like (not shown), the bobbin set can be set even during the doffing operation for removing the full package 45 (FIG. 5). Even during the work (FIG. 6), the above-described separation work can be performed.

  The bobbin setting device 60 includes a carry-out unit 61 shown in FIG. 2 in addition to the cradle operation arm 89 as a configuration for performing a doffing operation. The carry-out portion 61 is for guiding the full package 45 received from the cradle 70 to the placement portion 82 via the inclined portion 81. The carry-out portion 61 includes a guide plate 69, a bobbin guide cylinder 62, and a roller member 67 as main components. The carry-out unit 61 is configured to be rotatable about the rotation shaft 101.

  The guide plate 69 is a plate-shaped contact member that guides the package 45 while being in contact with the outer peripheral surface of the full-package package 45 received from the cradle 70, and the package 45 is controlled by regulating the axial position of the package 45. And a plate-like regulating member that prevents the contact member from falling.

  The bobbin guiding cylinder 62 can apply a force to the action shaft 104 by expanding and contracting the cylinder, and can rotate the guide plate 69 up and down around the rotating shaft 103. With this configuration, the carry-out unit 61 may adjust the position of the guide plate 69 when the package 45 is guided, or stop the rotation of the package 45 that continues to rotate due to inertia after the winding of the package 45 is completed. it can.

  The roller member 67 is configured to be able to rotate on the inclined portion 81 when the package 45 is guided along the inclined portion 81. With this configuration, the carry-out unit 61 can smoothly guide the package 45.

  Next, the bobbin supply unit 50 will be described in detail with reference to FIGS. 3 and 4. FIG. 3 is a perspective view showing the configuration of the bobbin supply unit 50 when the bobbin 48 is supplied to the cradle 70. FIG. 4 is a diagram showing the shape and arrangement of the yarn guide portion 31, the yarn hooking groove 32, and the cutter 33.

  As shown in FIG. 3, the bobbin supply unit 50 includes a fixed arm 57, a swing arm 58, a bobbin supply cylinder 56, a bunch winding motor 54, in addition to the bobbin gripping unit 52 and the bunch winding roller 53 described above. And a gripping part drive cylinder 55.

  The fixed arm 57 includes a flat path adjustment plate 59, and a selection hole 115 is formed in the path adjustment plate 59. The bobbin supply unit 50 is fixed to an appropriate portion of the doffing cart 4 by inserting a fixing tool such as a bolt into the selection hole 115 and assembling it. The path adjustment plate 59 has several selection holes 115 formed therein. By changing the selection holes 115 used for fixing, the position and orientation of the path adjustment plate 59 (and hence the position of the swing shaft 111) are changed. And orientation) can be adjusted. By adjusting the position and orientation of the swing shaft 111 as described above, the locus drawn by the tip of the swing arm 58 is changed. In this way, by using the path adjusting plate 59 and the fixture as the adjusting unit, the path of the bobbin 48 when the bobbin 48 is supplied to the bobbin holder 72 can be changed.

  The bobbin supply unit 50 is configured to be rotatable about the swing shaft 111 as described above, and a torsion spring 112 is attached to the swing shaft 111. The torsion spring 112 urges the swing arm 58 in a direction opposite to the direction in which the swing arm 58 rotates when the bobbin 48 is supplied (direction in which the bobbin grip 52 is brought closer to the doffing cart). is doing.

  The bobbin supply cylinder 56 is a cylinder that can be expanded and contracted based on a command from the bobbin setting device 60. One end of the bobbin supply cylinder 56 is attached to the base side of the fixed arm 57. At the other end of the bobbin supply cylinder 56, a swing arm 58 that can be rotated around a swing shaft 111 is rotatably attached.

  With this configuration, the swing arm 58 can be rotated around the swing shaft 111 by extending the bobbin supply cylinder 56 so as to overcome the biasing force of the torsion spring 112.

  The bunch winding motor 54 is for generating a driving force for rotating the bunch winding roller 53 described above. The driving force generated by the bunch winding motor 54 is transmitted to the bunch winding roller 53 by a transmission mechanism (not shown) (for example, a belt and a pulley).

  When bunch winding is performed, it is necessary to bring the bunch winding roller 53 into contact with the bobbin 48. Considering this point, the bobbin supply unit 50 includes a moving mechanism (specifically, a gripping unit drive cylinder 55 described later) that can move the bunch winding roller 53 so as to contact the bobbin 48. .

  The bobbin gripping portion 52 described above includes a fixed gripping portion 113 and a movable gripping portion 114. The movable gripping part 114 is connected to the gripping part drive cylinder 55. The movable gripping portion 114 can be brought close to or away from the fixed gripping portion 113 by the operation of the gripping portion driving cylinder 55. With this configuration, the bobbin gripping part 52 can grip the bobbin 48 and release the grip.

  Further, in the present embodiment, the state where the bunch winding roller 53 is in contact with the bobbin 48 and the state where the bunch winding roller 53 is separated from the bobbin 48 can be switched by the grip portion drive cylinder 55. The operation of the bobbin gripping portion 52 and the operation of the bunch winding roller 53 are configured to be interlocked. Specifically, when the bobbin gripping portion 52 grips the bobbin 48, the bunch winding roller 53 is simultaneously separated from the bobbin 48. When the holding of the bobbin 48 by the bobbin holding part 52 is released, the bunch winding roller 53 is brought into contact with the bobbin 48 at the same time.

  As shown in FIG. 4 (a), in the vicinity of the position where the end of the large-diameter bobbin 48 is held in the fixed holding portion 113 of the bobbin holding portion 52, the yarn guide portion 31 and the yarn hooking groove 32 are provided. And are formed. FIG. 4A is a view when the fixed gripping portion 113 in the state of FIG. 3 is viewed from the spinning unit 2 side.

  The yarn hooking groove 32 is a groove for hooking the spun yarn 10 when the bobbin 48 is supplied so that the spun yarn 10 does not escape from the axial end of the bobbin 48. The yarn guide portion 31 is for guiding the spun yarn 10 so that the spun yarn 10 is guided to the yarn hooking groove 32.

  FIG. 4B is a view of the large diameter side of the bobbin 48 in FIG. 3 as viewed in the axial direction of the bobbin 48. FIG. 4B corresponds to FIG. 8 described later, but the viewing direction is opposite to that in FIG. As shown in FIG. 4B, the bobbin supply unit 50 includes a cutter (cutting unit) 33 that can cut the spun yarn 10. The operations of the yarn guide portion 31, the yarn hooking groove 32, and the cutter 33 will be described later.

  Next, the flow when the bobbin setting device 60 performs the doffing operation and the bobbin setting operation will be described with reference to FIGS. First, the doffing operation will be described with reference to FIG. FIG. 5 is a longitudinal cross-sectional view showing a state where the spun yarn 10 is captured by the suction pipe 88 while performing the doffing operation of the full package 45.

  When a sensor (not shown) detects that a package 45 of a spinning unit 2 is full, the unit controller stops the spinning device 9 and calls the doffing carriage 4 to the spinning unit 2. At substantially the same time, the unit controller rotates the cradle arm 71 to the left side (the front side of the apparatus) in FIG. 2 in the winding device 13 to release the full package 45 from the winding drum 74 and to the package 45. Control to cut off the rotational driving force of

  The package 45 continues to rotate due to inertia even after being separated from the winding drum 74. The bobbin setting device 60 extends the bobbin guide cylinder 62 of the carry-out portion 61 to rotate the guide plate 69 upward to contact the package 45. Thereby, the inertial rotation of the package 45 can be stopped.

  Further, the bobbin setting device 60 moves the cradle operation arm 89 to the position shown in FIG. 5 until the inertial rotation of the package 45 is completely stopped, and when the inertial rotation of the package 45 is completely stopped, The apparatus 60 operates the cradle arm 71 with the cradle operation arm 89 so as to separate one bobbin holder 72 from the other bobbin holder 72, and removes the fully wound package 45 from the cradle 70.

  The removed fully wound package 45 is guided to the inclined portion 81 while the weight of the package 45 is supported by the guide plate 69 (specifically, the contact member) of the carry-out portion 61. Then, the carry-out part 61 moves by rolling the package 45 along the inclined part 81 while maintaining the state in contact with the package 45. At this time, the roller member 67 of the carry-out portion 61 is rolling on the inclined portion 81. Thereafter, the package 45 is guided to the placement unit 82.

  In the present embodiment, the placing portion 82 has a function as a conveyor, and the packages 45 are transported along the direction in which the spinning units 2 are arranged, and are automatically collected in one place. . However, the mounting unit 82 may be configured not to have a conveyor function, and the package 45 on the mounting unit 82 may be manually collected by an operator. The doffing operation is performed as described above.

  Next, the bobbin setting operation will be described with reference to FIGS. FIG. 6 is a longitudinal sectional view showing a state in which the suction pipe 88 moves to a standby position while waiting for the spun yarn 10 to stand by. FIG. 7 is a longitudinal sectional view showing a state in which the spun yarn 10 is disposed at the axial end portion of the bobbin 48 in the process of supplying the bobbin holder 72 to the cradle 70. FIG. 8 is a longitudinal cross-sectional view showing a state at the moment when the bobbin 48 in which the spun yarn 10 is arranged at the axial end is supplied to the cradle 70. The bobbin setting work is performed in parallel with the doffing work.

  The unit controller of the spinning unit 2 resumes driving of the draft device 7 and the spinning device 9 when the doffing cart 4 comes to the front of the spinning unit 2 in response to the call. At substantially the same time, the suction pipe 88 is extended upward (see FIG. 5). The suction pipe 88 captures the yarn end of the spun yarn 10 discharged from the spinning device 9 by sucking.

  The bobbin setting device 60 moves the suction pipe 88 downward while sucking the spun yarn 10. At this time, the unit controller performs control so that the spun yarn 10 sucked by the suction pipe 88 is wound around the yarn storage device 12. Note that the suction force of the suction pipe 88 at this time is small and does not overcome the resistance torque of the yarn storage device 12, so that the spun yarn 10 is stored in the yarn storage device 12 as shown in FIG. 6.

  The bobbin setting device 60 continues to wait at the standby position after moving the suction pipe 88 downward (see FIG. 6). As a result, the spun yarn 10 is guided so as to form a predetermined yarn path between the tip of the suction pipe 88 and the yarn storage device 12. Before and after the movement of the suction pipe 88, the cradle operating arm 89 is moved to a position where the cradle 70 can be operated, and one bobbin holder 72 is separated from the other bobbin holder 72 until the bobbin 48 is supplied. The cradle arm 71 is operated as described above.

  Next, the bobbin setting device 60 grips the bobbin 48 stocked on the upper part of the doffing cart 4 with the bobbin supply unit 50 (bobbin gripping unit 52). Thereafter, the bobbin setting device 60 extends the bobbin supply cylinder 56 and rotates the swing arm 58 to advance the bobbin supply unit 50 from the doffing cart 4 side to supply the bobbin 48. It should be noted that the design and layout of the bobbin setting device 60 of this embodiment are adjusted so that the yarn path of the spun yarn 10 contacts the yarn guide portion 31 of the bobbin setting device 60 during the supply operation. . Accordingly, the spun yarn 10 that has come into contact with the yarn guide portion 31 is naturally guided to and caught by the yarn hooking groove 32 as the swing arm 58 further rotates. As a result, the spun yarn 10 is positioned so as to pass near the axial end of the bobbin 48 before the bobbin 48 is supplied to the cradle 70.

  The bobbin supply unit 50 supplies the bobbin 48 to the bobbin holder 72 in a state where the spun yarn 10 is in the yarn hooking groove 32 (see FIG. 8). That is, the bobbin 48 and the spun yarn 10 are simultaneously supplied to a position between the pair of bobbin holders 72. In the state after the supply, as shown in FIGS. 4B and 8, the spun yarn 10 is disposed across the bobbin 48 at the axial end of the bobbin 48. Accordingly, in this state, the cradle operating arm 89 operates the cradle arm 71 so that the one bobbin holder 72 is brought close to the other bobbin holder 72, so that the spun yarn 10 is placed between the end of the bobbin 48 and the bobbin holder 72. It is pinched and fixed.

  The cutter 33 provided in the bobbin supply unit 50 cuts the spun yarn 10 at a position between the bobbin 48 and the suction pipe 88. Since the spun yarn 10 cut by the cutter 33 is sucked by the suction pipe 88, it is possible to prevent the yarn waste from falling onto the floor surface or the like.

  Next, the bobbin setting device 60 operates the gripper drive cylinder 55 to release the grip of the bobbin 48 by the bobbin gripper 52 and brings the bunch winding roller 53 into contact with the bobbin 48 to perform bunch winding. Since the operation of the bobbin gripping portion 52 and the operation of the bunch winding roller 53 are linked as described above, the mechanism of the bobbin setting device 60 can be simplified.

  In addition, from the state of FIG. 4A in which the spun yarn 10 and the bobbin 48 are simultaneously supplied between the bobbin holders 72, the cradle arm 71 is operated to hold the bobbin 48 between the pair of bobbin holders 72. Along with this, the bobbin 48 moves slightly in the axial direction. As a result, the yarn hooking groove 32 provided in the bobbin supply unit 50 faces a position slightly closer to the center than the axial end of the bobbin 48, as shown in FIG. Therefore, by rotating the bobbin 48 with the bunch winding roller 53 while the spun yarn 10 is guided by the yarn hooking groove 32, bunch winding can be formed at a position near the axial end of the bobbin 48. Thus, in the bobbin setting device 60 of the present embodiment, the yarn hooking groove 32 also serves as a yarn guide at the time of bunch winding, so that a special guide member for bunch winding can be omitted.

  When the bunch winding is completed, the bobbin supply cylinder 56 is retracted, so that the bobbin supply unit 50 is retracted to the doffing cart 4 side. Before and after that, the unit controller rotates the cradle 70 so that the bobbin 48 contacts the winding drum 74. As a result, a winding tension is applied to the spun yarn 10, the spun yarn 10 is gradually unwound from the yarn accumulating roller 21, and winding of the package 45 is started.

  As described above, the bobbin setting device 60 according to this embodiment includes the bobbin supply unit 50 and the suction pipe 88. The bobbin supply unit 50 supplies a bobbin 48 for winding the spun yarn 10 to a bobbin holder 72 (specifically, a position between a pair of bobbin holders 72) as a target position. The suction pipe 88 captures and guides the spun yarn 10 to be wound around the bobbin 48 supplied by the bobbin supply unit 50. The bobbin supply unit 50 and the suction pipe 88 move while the spun yarn 10 is positioned at the axial end of the bobbin 48 by the suction pipe 88, so that the bobbin 48 and the spun yarn 10 are moved relative to the bobbin holder 72. Supplied.

  Thereby, it is not necessary to guide the spun yarn 10 to a small gap generated between the supplied bobbin 48 and the bobbin holder 72. As a result, the guide error of the spun yarn 10 by the bobbin setting device 60 can be reduced, and the winding efficiency of the spinning machine 1 can be improved. Furthermore, since a configuration for accurately guiding the spun yarn 10 into a small gap can be omitted, a compact bobbin setting device 60 can be realized.

  Further, in the bobbin setting device 60 of the present embodiment, the suction pipe 88 moves to a standby position and stands by while capturing the spun yarn 10. The bobbin supply unit 50 catches the spun yarn 10 captured by the suction pipe 88 waiting at the standby position during the supply of the bobbin 48 to the bobbin holder 72, and the bobbin supply unit 50 receives the spun yarn 10 at the axial end of the bobbin 48. The spun yarn 10 is positioned.

  Thereby, the bobbin setting device 60 can perform the operation of arranging the spun yarn 10 at the axial end of the bobbin 48 and the operation of supplying the bobbin 48 to the bobbin holder 72 in one operation. Therefore, the bobbin setting device 60 can set the bobbin 48 in the bobbin holder 72 quickly.

  Further, in the bobbin setting device 60 of the present embodiment, the bobbin supply unit 50 includes a yarn guide unit 31 that guides the spun yarn 10 to the axial end of the bobbin 48.

  As a result, the spun yarn 10 can be positioned at the axial end of the bobbin 48 by the yarn guide portion 31, so that the bobbin setting device 60 can further reduce the guide error of the spun yarn 10 with respect to the bobbin 48.

  In the bobbin setting device 60 of the present embodiment, the bobbin supply unit 50 includes a cutter 33 that cuts the spun yarn 10 at a position between the bobbin 48 supplied to the bobbin holder 72 and the suction pipe 88.

  Since the bobbin supply unit 50 includes the cutter 33, the bobbin setting device 60 can quickly perform the cutting operation after supplying the bobbin 48 to the bobbin holder 72. When the cutter is not provided in the bobbin supply unit 50 (that is, when the cutter is provided at a position away from the bobbin supply unit 50), the cutter is moved to a position where the spun yarn 10 is to be cut, After cutting, a mechanism for retracting is required separately. However, with the above configuration, the spinning machine 1 can be made compact by omitting those members.

  Further, in the bobbin setting device 60 of the present embodiment, the suction pipe 88 can capture the spun yarn 10 by a suction flow, and when the yarn is cut by the cutter 33, sucks the lint of the cut spun yarn 10. And is configured to be discarded.

  Thereby, the bobbin setting device 60 can prevent the yarn waste generated when the bobbin 48 is supplied to the bobbin holder 72 from falling on the floor surface or the like.

  Further, in the bobbin setting device 60 of this embodiment, the bobbin supply unit 50 includes a bunch winding roller 53 for performing bunch winding on the bobbin 48.

  Thereby, since the bunch winding roller 53 is provided in the bobbin supply part 50, after supplying the bobbin 48 to the bobbin holder 72, it can transfer to bunch winding operation | movement rapidly. Further, when the bunch winding roller is not provided in the bobbin supply unit 50 (that is, when the bunch winding roller or the like is provided at a position away from the bobbin supply unit 50), the bunch winding roller is set to the bobbin 48 at the time of bunch winding. A separate mechanism or the like is required for contact with each other and retreating so as not to get in the way when unnecessary. However, by adopting the above configuration, the configuration can be omitted and the spinning machine 1 can be made compact.

  In the bobbin setting device 60 of the present embodiment, the bobbin supply unit 50 includes a bunch winding roller 53 between the both ends in the axial direction of the bobbin 48 supplied to the bobbin holder 72 when the bobbin 48 is bunch-wound. A yarn hooking groove 32 for guiding the spun yarn 10 is formed at the position.

  As a result, the yarn hooking groove 32 guides the spun yarn 10 to a predetermined position on the bobbin 48 when the spun yarn 10 is hung at the axial end portion of the bobbin to maintain the position of the spun yarn 10 and during bunch winding. It can be effective in both situations. Therefore, the bobbin setting device 60 can be made compact compared to a configuration in which these are achieved by separate members.

  The spinning machine 1 of the present embodiment includes a bobbin setting device 60 and a spinning unit 2. The spinning unit 2 includes a bobbin holder 72 that holds the bobbin 48 supplied from the bobbin setting device 60, and a winding device 13 that winds the spun yarn 10 around the bobbin 48 held by the bobbin holder 72 to form the package 45. Prepare.

  As a result, the bobbin setting device 60 can simultaneously supply the bobbin 48 and the spun yarn 10 to the bobbin holder 72. As a result, it is possible to reduce mistakes in guiding the bobbin 48 and the spun yarn 10 by the bobbin setting device 60, and to improve the winding efficiency of the spinning machine 1.

  In the spinning machine 1 of the present embodiment, the bobbin setting device 60 includes a cradle operation arm 89 that operates the cradle 70 (specifically, the cradle arm 71) to remove the package 45 from the bobbin holder 72.

  That is, when the package 45 is removed from the bobbin holder 72, in principle, the operation of supplying the bobbin 48 to the bobbin holder 72 is required to form a new package 45. In this regard, in the above configuration, both operations can be performed by one apparatus, and therefore the spinning machine 1 can be made compact.

  In the spinning machine 1 of the present embodiment, the bobbin setting device 60 includes a path adjusting plate 59 and a fixture that can adjust the path of the bobbin 48 when the bobbin 48 is supplied to the bobbin holder 72 by the bobbin supply unit 50. It is preferable.

  Thereby, the spinning machine 1 can adjust the path of the bobbin 48 so that the bobbin 48 passes through an appropriate path according to the shape of the bobbin 48 to be supplied. By performing this adjustment, the bobbin 48 supplied by the bobbin setting device 60 can be prevented from colliding with the bobbin holder 72. Furthermore, by adjusting the path through which the bobbin 48 passes, the bobbin supply unit 50 can more reliably capture the spun yarn 10 captured by the suction pipe 88 at the standby position.

  In the spinning machine 1 of the present embodiment, the spinning units 2 are arranged side by side in a certain direction. The bobbin setting device 60 can travel along the direction in which the spinning units 2 are arranged.

  Thereby, compared with the structure which installs the bobbin set apparatus 60 for every spinning unit 2, the installation number of the bobbin set apparatuses 60 can be reduced and cost can be reduced.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  Further, the configuration of the spinning machine 1 can be appropriately changed according to circumstances. For example, instead of the yarn storage device 12 included in the spinning machine 1 of the above embodiment, or in addition to the yarn storage device 12, the yarn feeding device composed of a pair of rollers is changed to a configuration arranged on the downstream side of the spinning device 9. can do.

  The scope of application of the present invention is not limited to a spinning machine, and can be applied to a yarn winding machine other than a spinning machine as long as the bobbin is supplied and a yarn is wound around the bobbin.

  In the above embodiment, an example in which a cone-shaped package is formed has been described. However, the shape of the package is not limited to the cone shape, and various types of packages such as a cheese shape and a tapered shape can be formed.

  The attachment position of the bunch winding roller 53 is not limited to the position of the above embodiment. It is also possible to provide a bunch winding mechanism independently of the bobbin gripping portion 52. Further, a mechanism for bunch winding may be provided at a position away from the bobbin gripping portion 52. However, the bobbin setting device 60 can be reduced in size by arranging the bunch winding roller 53 in the vicinity of the bobbin gripping portion 52 as in the above embodiment.

  In the above embodiment, when a yarn defect is detected, the spun yarn 10 is cut by stopping the draft device 7 while the winding device 13 is driven. However, instead of this configuration, the yarn clearer is cut. A cutter is provided near 49, and the spun yarn 10 can be cut by this cutter.

  In the above embodiment, the operation of moving the unloading unit 61 away from the bobbin holder 72 and the operation of the bobbin supply unit 50 approaching the bobbin holder 72 are performed in parallel, but the bobbin set is completed after the doffing operation is completed. You may make it work. However, from the viewpoint of the operational efficiency of the spinning machine 1, it is desirable to simultaneously perform the doffing operation and the bobbin setting operation.

1 Spinning machine (yarn winding machine)
2 Spinning unit (winding unit)
4 Doffing cart 13 Winding device 31 Thread guide section 32 Thread hook groove (thread hook section)
50 Bobbin supply portion 53 Bunch winding roller 52 Bobbin gripping portion 60 Bobbin setting device 61 Unloading portion 70 Cradle 72 Bobbin holder (bobbin holding portion)
74 Winding drum 88 Suction pipe (Thread catching and guiding device)

Claims (11)

A bobbin supply unit for supplying a bobbin for winding the yarn to the target position;
A yarn catching and guiding device for catching and guiding a yarn to be wound around the bobbin supplied by the bobbin supply unit;
With
With the yarn catching and guiding device moving the bobbin supply portion and the yarn catching and guiding device with the yarn positioned at the axial end of the bobbin, the bobbin and the yarn are brought to the target position. A bobbin setting device, wherein the bobbin setting device is supplied. The bobbin setting device according to claim 1,
The yarn catching and guiding device moves to a standby position while catching a yarn and waits,
The bobbin supply unit catches the yarn caught by the yarn catching guide device waiting at the standby position in the middle of supplying the bobbin to the target position, and the bobbin supply unit catches the yarn at the axial end of the bobbin. A bobbin setting device for positioning the yarn. The bobbin setting device according to claim 1 or 2,
The bobbin supply device, wherein the bobbin supply unit includes a yarn guide unit that guides the yarn to the axial end of the bobbin. The bobbin setting device according to any one of claims 1 to 3,
The bobbin supply device, wherein the bobbin supply unit includes a cutting unit that cuts a yarn at a position between the bobbin supplied to the target position and the yarn catching and guiding device. The bobbin setting device according to claim 4,
The yarn catching and guiding device is configured to catch a yarn by a suction flow, and when the yarn is cut by the cutting unit, the yarn catching and guiding device is configured to suck and discard the yarn waste of the cut yarn. A bobbin setting device. The bobbin setting device according to any one of claims 1 to 5,
The bobbin setting device, wherein the bobbin supply unit includes a bunch winding roller for performing bunch winding on the bobbin. The bobbin setting device according to claim 6,
The bobbin supply portion includes a yarn hooking portion that guides the yarn to a position between both axial end portions of the bobbin supplied to the target position when the bobbin is bunch-wound by the bunch winding roller. Bobbin setting device characterized by. The bobbin setting device according to any one of claims 1 to 7,
A winding unit comprising: a bobbin holding unit that holds the bobbin supplied from the bobbin setting device; and a winding device that winds a thread around the bobbin held by the bobbin holding unit to form a package;
A yarn winding machine comprising: The yarn winding machine according to claim 8,
The bobbin setting device includes an operation unit that operates the bobbin holding unit to remove the package from the bobbin holding unit. A yarn winding machine according to claim 8 or 9, wherein
The bobbin setting device includes an adjusting unit capable of adjusting a path of the bobbin when the bobbin is supplied to the bobbin holding unit by the bobbin supply unit. A yarn winding machine according to any one of claims 8 to 10,
The winding unit is arranged side by side in a certain direction,
The bobbin setting device is capable of traveling along a direction in which the winding units are arranged.

Images