JP5766576B2 - Spinning and winding device - Google Patents

Description

  The present invention relates to a spinning winding device that winds a spun yarn while switching a winding bobbin.

  In the spinning winding device, two bobbin holders are provided on the turret, and the yarn is wound on a winding bobbin attached to one bobbin holder. A contact roller is pressed against the winding bobbin being wound. The other bobbin holder is installed with a new winding bobbin after the fully wound winding bobbin (package) is doffed. When switching to a new take-up bobbin and doffing a take-up bobbin (package) that is full, the turret rotates approximately half a turn. When the switching of the winding bobbin is completed, winding of the yarn onto a new winding bobbin is started. The doffing of the full package is performed by a doffing device.

  Patent Document 1 discloses a spinning winding device that controls the rotation of a turret so that the position of a contact roller is kept substantially constant when winding a spun yarn onto a winding bobbin. In the spinning winding device of Patent Document 1, the rotation angle of the turret changes every moment from immediately after switching to a new winding bobbin in order to keep the position of the contact roller substantially constant. Since the rotation angle of the turret constantly changes, the position of the full package also changes constantly. For this reason, there is a problem that the doffing device must follow the movement of the package during doffing and the structure of the doffing device becomes complicated. Further, in an automatic doffing apparatus that automatically doffs, it is difficult to doff following the movement of the package.

  Patent Document 2 discloses a spinning winding device that does not rotate the turret until doffing of a fully packed package is completed after switching to a new winding bobbin. In the spinning and winding device of Patent Document 2, the contact roller is raised to correspond to the winding of the package until the doffing of the package is completed. For this reason, the position of the package does not change during the doffing of the package, and the doffing becomes easy. After the doffing of the package is completed, the contact roller position and the turret rotation angle are controlled corresponding to the winding thickness of the winding bobbin, and when the winding bobbin is full, the contact roller reaches the lower limit. Descend.

  By the way, a design that does not interfere with the take-up bobbin is required for the take-up take-up device. However, in the spinning winding device of Patent Document 1, since the rotation angle of the turret changes from moment to moment immediately after switching to a new winding bobbin, the trajectory of the winding bobbin that moves with the rotation of the turret is wide. It will extend to the range. Even with the spinning winder of Patent Document 2, the turret rotation angle changes momentarily corresponding to the winding thickness of the winding bobbin after the fully wound package has been doffed. Accordingly, the trajectory of the winding bobbin that moves is extended over a wide range. Therefore, when a member constituting the spinning winding device is arranged in a region through which the winding bobbin passes, the member interferes with the winding bobbin. For this reason, there is a problem that the degree of freedom in design is limited in such a spinning winder.

Japanese Patent No. 2798508 Japanese Patent No. 4024377

  The present invention has been made to solve the above problems. SUMMARY OF THE INVENTION An object of the present invention is to provide a spinning winding device that has an improved design flexibility by keeping the region through which a winding bobbin passes within a narrow range.

  Next, means for solving this problem will be described.

That is, the first invention is
A spinning and winding device for winding a spun yarn while switching a winding bobbin,
The aircraft,
A turret having two bobbin holders for holding a winding bobbin and rotating with respect to the machine body;
Corresponding to the winding bobbin winding and the rotation of the turret, a contact roller that moves so as to vary the distance from the rotation axis of the turret while maintaining a state in pressure contact with the winding bobbin;
A setting unit for setting the first turret rotation condition and the second turret rotation condition;
A detection unit for detecting the winding state of the yarn;
A determination unit that determines whether the winding state of the yarn detected by the detection unit has reached the first turret rotation condition or the second turret rotation condition;
A control unit for controlling the rotation of the turret and the movement of the contact roller,
The controller is
The contact roller is disposed at the first roller position, and the winding of the yarn around the winding bobbin is started with the turret disposed at the first turret position.
In the first period from when the determination unit determines that the first turret rotation condition has been reached after starting the winding of the yarn, the contact roller is made to correspond to the winding thickness of the winding bobbin from the first roller position. Moving to the second roller position and maintaining the turret stopped at the first turret position;
In the second period from when the determination unit determines that the first turret rotation condition has been reached until it is determined that the second turret rotation condition has been reached, the turret is moved from the first turret position to the second time. While rotating to the turret position, the contact roller is moved from the second roller position to the third roller position in correspondence with the rotation of the turret and the winding thickness of the winding bobbin,
Third period from determines that the determination unit has reached the second turret rotating condition until the winding bobbin reaches the fully wound, rotate the turret to the third turret position from said second turret position together is, the contact roller so as to correspond to wound expansion of rotating and winding bobbin of the turret to move from said third roller position to the fourth roller position,
The distance from the rotation axis of the turret to the fourth roller position is longer than the distance from the rotation axis of the turret to the first roller position, and the distance from the rotation axis of the turret to the second roller position. The distance from the rotation axis of the turret to the third roller position is shorter than the distance from the rotation axis of the turret to the first roller position, and the distance from the rotation axis of the turret to the second position is shorter. A take-up device that is shorter than the distance to the roller position, and wherein the distance from the rotation axis of the turret to the fourth roller position is longer than the distance from the rotation axis of the turret to the third roller position ; To do.

According to a second invention, in the first invention,
In the fourth period from when the winding bobbin reaches full winding until the next winding bobbin starts to be wound, the contact roller moves from the fourth roller position to the first roller position. And

According to a third invention, in the first or second invention,
The first roller position, which is the winding start position of the contact roller, is set so that the distance from the rotation shaft of the turret to the first roller position is shorter than the minimum stop distance, and the turret rotation The spinning winder is configured so that the protective device is not operated until the distance from the moving shaft to the contact roller exceeds the minimum stop distance for the first time after starting winding of the yarn.

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

According to the first invention, the distance from the rotation axis of the turret to the fourth roller position is longer than the distance from the rotation axis of the turret to the first roller position, and from the rotation axis of the turret to the second roller position. Shorter than the distance. Furthermore, the distance from the rotation axis of the turret to the third roller position is longer than the distance from the rotation axis of the turret to the first roller position, and shorter than the distance from the rotation axis of the turret to the second roller position. Further, the distance from the turret rotation axis to the fourth roller position is longer than the distance from the turret rotation axis to the third roller position. For this reason, the area | region where the winding bobbin which moves with rotation of a turret passes is settled in a narrow range. Therefore, it is possible to secure a space where the members constituting the spinning winding device do not interfere with the winding bobbin, and it is possible to improve the degree of freedom in design.

According to the second invention, the contact roller is moved from the fourth roller position to the first roller position. For this reason, the position of the contact roller can be returned to the first roller position, and the winding of the yarn around the new winding bobbin can be started.

According to the third invention, the distance from the rotation axis of the turret to the first roller position is set to be shorter than the minimum stop distance. In this case, the protection device is not operated. For this reason, it is possible to secure a long time for moving the contact roller from the first roller position to the second roller position, and it is possible to secure a longer time for doffing the package.

1 is a front view of a take-up winding device 11 according to a first embodiment of the present invention. 1 is a front view of a take-up device 11. FIG. 1 is a front view of a take-up device 11. FIG. 1 is a front view of a take-up device 11. FIG. FIG. 3 is a block diagram of the yarn winding device 11. The figure which shows control of the spinning winding apparatus 11. FIG. The figure which shows the locus | trajectory T of the winding bobbin B. FIG. The figure which shows control of the spinning winding apparatus 11 which concerns on Example 2 of this invention. The figure which shows control of the conventional spinning winding apparatus. The figure which shows locus | trajectory T 'of winding bobbin B. FIG.

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

  A spinning and winding device 11 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 7. The spinning winder 11 winds the spun yarn Y while switching the winding bobbin B to form the package 18. In the following description, the winding tube 17 and the package 18 may be collectively referred to as a winding bobbin B. That is, the winding bobbin B on which the yarn layer is not formed is the winding tube 17, and the winding bobbin B on which the yarn layer is formed is the package 18.

  As shown in FIGS. 1 and 5, the yarn winding device 11 mainly includes a machine body 12, a turret 21, a slide box 31, and a control unit 51. The turret 21 and the slide box 31 are provided on the body 12. The turret 21 rotates with respect to the airframe 12. The turret 21 can be rotated around a rotation shaft 23 by a turret driving device 24. On the turret 21, two bobbin holders 25 on which the take-up bobbin B is mounted project from a symmetric position with respect to the rotation shaft 23. By rotating the turret 21 approximately half-turn by the turret driving device 24, the positions of the two bobbin holders 25 are changed so that one of the bobbin holders 25 is at the upper winding position and the other is at the lower doffing and standby positions. Can be made.

  The two bobbin holders 25 provided on the turret 21 are each connected to a bobbin holder driving device 26 and are rotatable. Each bobbin holder driving device 26 is electrically connected to the control unit 51.

  The control unit 51 is configured as a known microcomputer, and includes a CPU as a calculation device, and storage means such as a ROM and a RAM. The controller 51 controls driving of various driving devices based on signals generated by various sensors described later.

  The slide box 31 is provided so as to be movable up and down with respect to the machine body 12, and is provided with a contact roller 35 and a traverse device 41. The slide box 31 is supported with respect to the machine body 12 by an elevating drive device 33 which is a contact pressure adjusting means of the contact roller 35. The elevating drive device 33 is configured by an air cylinder or the like. Due to the operation of the elevating drive device 33, the slide box 31 receives an upward force with respect to the machine body 12, and the contact roller 35 contacts the take-up bobbin B with a predetermined contact pressure. The raising / lowering drive apparatus 33 is electrically connected to the control part 51, and a drive is controlled.

  The contact roller 35 rotates following the winding bobbin B while winding the yarn Y, inherits the yarn Y traversed by the traverse device 41, and delivers the yarn Y to the outer periphery of the winding bobbin B It is. Further, the contact roller 35 moves while maintaining the state of being in pressure contact with the winding bobbin B corresponding to the winding of the winding bobbin B and the rotation of the turret 21 as the slide box 31 moves up and down. The moving direction of the contact roller 35 is the same as that of the slide box 31. As the contact roller 35 moves, the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 varies. The position of the contact roller 35 is detected by detecting the position of the slide box 31 with the position sensor 37.

  The rotation speed of the contact roller 35 is detected by a rotation sensor 38, thereby detecting the outer peripheral speed of the winding bobbin B. The detection signal is sent to the control unit 51. Then, the driving of the bobbin holder driving device 26 is controlled so that the rotation speed of the contact roller 35 detected by the rotation sensor 38 is constant. Specifically, when the value detected by the rotation sensor 38 falls below a predetermined value corresponding to the winding speed, the control unit 51 increases the rotation speed of the bobbin holder driving device 26. Conversely, if the detected value exceeds a predetermined value, the control unit 51 performs control so as to decrease the rotational speed of the bobbin holder driving device 26.

  The traverse device 41 is disposed on the upstream side in the traveling direction of the yarn Y with respect to the contact roller 35, and the position is fixed with respect to the slide box 31. The traverse guide 22 reciprocates in the traverse range in a state of being engaged with the yarn Y supplied from above in FIG. 1, thereby causing the yarn Y sent in the downstream direction to traverse.

  The yarn winding device 11 further includes a setting unit 53, a detection unit 55, a determination unit 57, and a protection device 59.

  The setting unit 53 can set the first turret rotation condition for starting the rotation of the turret 21 after starting the winding of the yarn Y. In the first embodiment, the winding diameter of the winding bobbin B = D1 is set as the first turret rotation condition. However, the first turret rotation condition is not limited to the winding diameter of the winding bobbin B. The first turret rotation condition may be the time after starting winding of a certain winding bobbin B or the length of the yarn Y wound around a certain winding bobbin B. The first turret rotation condition is determined in consideration of the time required for doffing.

  The setting unit 53 can set a second turret rotation condition for changing the rotation condition of the turret 21 after the first turret rotation condition has elapsed. In the first embodiment, the winding diameter of the winding bobbin B = D2 is set as the second turret rotation condition. However, the second turret rotation condition is not limited to the winding diameter of the winding bobbin B. The second turret rotation condition may be the time after the passage of the first turret rotation condition or the length of the yarn Y wound around a certain winding bobbin B. The second turret rotation condition is determined in consideration of the trajectory T of the winding bobbin B (see FIG. 7).

  The detection unit 55 detects the winding state of the yarn Y. The detecting unit 55 takes up the winding diameter of the winding bobbin B being wound up as the winding state of the yarn Y, the elapsed winding time of the winding bobbin B being wound, and the winding bobbin B being wound. The length of the warp Y is detected. These detections are performed based on signals from a rotation sensor 38, a sensor, a timer (not shown), and the like. The winding state of the yarn Y is compared with the first turret rotation condition and the second turret rotation condition described above in the determination unit 57, and therefore compared with at least the first turret rotation condition and the second turret rotation condition. A winding state of the yarn Y that can be detected is detected.

  The determination unit 57 determines whether the winding state of the yarn Y detected by the detection unit 55 has reached the first turret rotation condition or the second turret rotation condition. The determination as to whether the winding state of the yarn Y has reached the first turret rotation condition or the second turret rotation condition is transmitted to the control unit 51. Here, when the doffing is not completed despite reaching the first turret rotation condition, the winding of the yarn Y is stopped. The first turret rotation condition may be the completion of doffing instead of setting conditions such as the winding diameter and time. That is, for example, the rotation operation may be started with the take-up bobbin B being discharged, the new take-up tube 17 being inserted and gripped by the bobbin holder 25 as a trigger.

  The protection device 59 stops the winding of the yarn Y when the position of the contact roller 35 deviates from a predetermined range, and prevents the spinning winding device 11 from being damaged. The contact roller 35 moves up and down with respect to the machine body 12 together with the slide box 31, but the lift range of the slide box 31 has a mechanical upper limit position and a lower limit position, and the slide box 31 cannot be lifted or lowered beyond this. . As shown in FIG. 6, when the slide box 31 is at the mechanical upper limit position, the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 is defined as a maximum limit distance L (max2). When the slide box 31 is at the mechanical lower limit position, the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 is defined as a minimum limit distance L (min2).

  If the contact roller 35 reaches the position where the maximum limit distance L (max2) or the minimum limit distance L (min2) is reached during winding of the yarn Y, the winding of the yarn Y cannot be continued. Otherwise, the spinning winder 11 will be damaged. Therefore, the protection device 59 stops the winding of the yarn Y before the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 reaches the maximum limit distance L (max2) or the minimum limit distance L (min2).

  Specifically, the position where the protective device 59 operates before the contact roller 35 moves up and reaches the maximum limit distance L (max2) is set as the maximum stop position. The distance from the rotation shaft 23 of the turret 21 to the contact roller 35 when the contact roller 35 is at the maximum stop position is defined as a maximum stop distance L (max1). Further, the position at which the protective device 59 operates before the contact roller 35 descends and reaches the minimum limit distance L (min2) is set as the minimum stop position. The distance from the rotation shaft 23 of the turret 21 to the contact roller 35 when the contact roller 35 is at the minimum stop position is defined as a minimum stop distance L (min1). Further, a range in which the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 is longer than the minimum stop distance L (min1) and shorter than a predetermined maximum stop distance is set as a movable range of the contact roller 35. When the position of the contact roller 35 deviates from the movable range, the protection device 59 is activated to stop the winding of the yarn Y.

  Next, the control of the rotation of the turret 21 and the movement of the contact roller 35 when the yarn winding device 11 according to the first embodiment winds the yarn Y will be described. For comparison, the case where the control described in Patent Document 2 is performed will also be described.

  First, the case where the control described in Patent Document 2 is performed will be described with reference to FIGS. 9 and 10. The first roller position LS ′ shown in FIG. 9 indicates the position of the contact roller 35 at the start of winding of the yarn Y, and the second roller position L1 ′ indicates the position of the contact roller 35 under the first turret rotation condition. The third roller position LF ′ indicates the position of the contact roller 35 when fully wound. Further, the winding bobbin BS ′ shown in FIG. 10 shows the winding bobbin B at the start of winding the yarn Y, the winding bobbin B1 ′ shows the winding bobbin B at the first turret rotation condition, A winding bobbin BF ′ indicates the winding bobbin B when fully wound. Further, a plurality of imaginary lines (two-dot chain lines) shown in FIG. 10 indicate the outer edge of the winding bobbin B in the process from the winding bobbin BS ′ to the winding bobbin BF ′.

  In the control of Patent Document 2, when the winding of the yarn Y is started, the contact roller 35 is disposed at the first roller position LS ′, and the second roller corresponding to the winding thickness of the winding bobbin B from the first roller position LS ′. Move to position L1 ′.

  Subsequently, the turret 21 is rotated according to the winding of the winding bobbin B and the movement of the contact roller 35, and the contact roller 35 is moved from the second roller position L1 ′ to the third roller position LF ′ that is the winding end position. Move. The third roller position LF ′ corresponds to the winding diameter at the end of winding = DF. In the control described in Patent Document 2, the third roller position LF ′ is set to be the same as the first roller position LS ′.

  In the conventional yarn winding device that performs such control, the rotation angle of the turret 21 changes momentarily corresponding to the winding thickness of the winding bobbin B after the first turret rotation condition has elapsed. The trajectory T ′ of the winding bobbin B that moves with the rotation extends over a wide range. More specifically, the take-up bobbin B moves while getting thicker, and thus passes through a region corresponding to the space A shown in FIG. In the vicinity of the contact roller 35, the members constituting the spinning and winding device 11 are arranged. Therefore, if the members do not interfere with the winding bobbin B, the degree of freedom in design is limited.

  Next, the control of the take-up device 11 according to the first embodiment will be described with reference to FIGS. The first roller position LS shown in FIG. 6 indicates the position of the contact roller 35 at the start of winding of the yarn Y, the second roller position L1 indicates the position of the contact roller 35 under the first turret rotation condition, The third roller position L2 indicates the position of the contact roller 35 under the second turret rotation condition, and the fourth roller position LF indicates the position of the contact roller 35 during full winding. Further, the winding bobbin BS shown in FIG. 7 indicates the winding bobbin B at the start of winding of the yarn Y, and the winding bobbin B1 indicates the winding bobbin B at the first turret rotation condition. The bobbin B2 indicates the winding bobbin B when the second turret rotation condition is satisfied, and the winding bobbin BF indicates the winding bobbin B when fully wound. Further, a plurality of imaginary lines (two-dot chain lines) shown in FIG. 7 indicate the outer edge of the winding bobbin B in the process from the winding bobbin BS to the winding bobbin BF.

  First, the turret 21 is disposed at the first turret position. Further, the contact roller 35 is disposed at the first roller position LS. Then, the yarn winding device 11 starts winding the yarn Y onto the winding bobbin B (see FIG. 1). The first roller position LS corresponds to the winding diameter at the start of winding the yarn Y = DS = the diameter of the winding tube 17.

  A period from the start of winding the yarn Y to when the determination unit 57 determines that the first turret rotation condition has been reached is defined as a first period P1. In the first period P1, the contact roller 35 is moved from the first roller position LS to the second roller position L1 corresponding to the winding thickness of the winding bobbin B (see FIG. 2). At this time, the turret 21 is stopped at the first turret position. The second roller position L1 corresponds to the winding diameter of the winding bobbin B as the first turret rotation condition = D1.

  A period from when the determination unit 57 determines that the first turret rotation condition is reached to when it is determined that the second turret rotation condition is reached is defined as a second period P2. In the second period P2, the turret 21 is rotated from the first turret position to the second turret position (see the arrow in FIG. 3). The contact roller 35 is moved from the second roller position L1 to the third roller position L2 corresponding to the turning of the turret 21 and the winding bobbin B being thickened (see FIG. 3). The third roller position L2 corresponds to the winding diameter of the winding bobbin B as the second turret rotation condition = D2.

  A period from when the determination unit 57 determines that the second turret rotation condition has been reached to when the winding bobbin B reaches full winding is defined as a third period P3. In the third period P3, the turret 21 is moved from the second turret position to the third turret position, and the contact roller 35 is moved from the third roller position L2 to correspond to the rotation of the turret 21 and the winding thickness of the winding bobbin B. Move to the fourth roller position LF (see FIG. 4). Here, by setting the second turret position and the third turret position to be very close or the same position, the turret 21 can be substantially stopped at the second turret position in the third period P3. The fourth roller position LF corresponds to the winding diameter of the winding bobbin B at the end of winding = DF.

  In the first embodiment, the distance from the rotation shaft 23 of the turret 21 to the fourth roller position LF is longer than the distance from the rotation shaft 23 of the turret 21 to the first roller position LS. The distance from the shaft 23 to the second roller position L1 is shorter. Furthermore, the distance from the rotation shaft 23 of the turret 21 to the third roller position L2 is longer than the distance from the rotation shaft 23 of the turret 21 to the first roller position LS, and the rotation shaft 23 of the turret 21 to the second roller. The distance to the position L1 is shorter.

  With this control, the spinning take-up device 11 rotates the turret 21 to the second turret position when the take-up bobbin B reaches a predetermined winding diameter (D1 in the first embodiment). Since the winding bobbin B is wound and thickened between the three turret positions, the region through which the winding bobbin B that moves as the turret 21 rotates is accommodated in a narrow range. More specifically, the winding bobbin B does not pass through the space A shown in FIG. 7 because the winding bobbin B is wound up between the second turret position and the third turret position. Therefore, it is possible to secure a space A in which the members constituting the spinning winding device 11 do not interfere with the winding bobbin B, and it is possible to improve the degree of freedom in design.

  Furthermore, the control of the yarn winding device 11 according to the first embodiment is such that the distance from the rotation shaft 23 of the turret 21 to the fourth roller position L3 is the distance from the rotation shaft 23 of the turret 21 to the third roller position L2. It is said that it is longer than the distance.

  With this control, the spinning take-up device 11 causes the turret 21 to largely rotate to the second turret position when the take-up bobbin B reaches a predetermined winding diameter (D1 in the first embodiment). Since the winding bobbin B is rolled up between the third turret positions, the region through which the winding bobbin B that moves as the turret 21 rotates passes within a narrower range. Therefore, it is possible to secure a large space A in which the members constituting the spinning winding device 11 do not interfere with the winding bobbin B, and it is possible to further improve the degree of freedom in design.

  Further, a period from when the winding bobbin B reaches full winding until the next winding bobbin B starts to be wound is defined as a fourth period P4. In the fourth period P4, the contact roller 35 moves from the fourth roller position LF to the first roller position LS. The reason for this operation is that when the contact roller 35 is not in contact with the take-up bobbin B, the contact roller 35 is lowered by its own weight and moved to the minimum limit distance L (min2). When the winding bobbin B comes into contact with the contact roller 35, the contact roller 35 is lifted by the winding bobbin B and moves from the minimum limit distance L (min2) to the first roller position LS. In the fourth period P4, the protection device 59 is set not to operate even if it is detected that the position of the contact roller 35 has fallen below the minimum stop distance L (min1).

  With this control, the present yarn winding device 11 can return the position of the contact roller 35 to the first roller position LS, and can start winding the yarn Y onto the new winding bobbin B. It becomes.

  Next, with reference to FIG. 8, a description will be given of the yarn winding device 11 according to the second embodiment of the present invention. In the first embodiment, the distance from the rotation shaft 23 of the turret 21 to the first roller position LS is set to be longer than the minimum stop distance L (min1) (see FIG. 6). The reason for this setting is that when the position of the contact roller 35 falls below the minimum stop distance L (min1) and deviates from the movable range, the protection device 59 is activated to stop the winding of the yarn Y. . Further, the reason why the protective device 59 is provided is that when the position of the contact roller 35 reaches the minimum limit distance L (min2) which is the mechanical lower limit position, normal winding cannot be performed, and the spinning winding is not possible. This is because the device 11 is damaged.

  However, the first roller position LS corresponds to the winding diameter of the winding bobbin B at the start of winding of the yarn Y = DS = the diameter of the winding tube 17, and when the winding of the yarn Y is started and Immediately after that, the yarn Y is hardly wound on the winding bobbin B, and the winding diameter of the winding bobbin B does not vary greatly. For this reason, there is almost no possibility of damaging the spinning winder 11 even if the position of the contact roller 35 is brought close to the minimum limit distance L (min2) at the time point immediately after starting the winding of the yarn Y. .

  In addition, by bringing the position of the contact roller 35 closer to the minimum limit distance L (min2), the time until the position of the contact roller 35 reaches the second roller position L1 can be lengthened, and the doffing of the package 18 can be performed. There is also an advantage that the time required for this can be lengthened.

  For this reason, in Example 2, it set so that the distance from the rotating shaft 23 of the turret 21 to the 1st roller position LS might become shorter than the minimum stop distance L (min1). Further, the distance from the rotation shaft 23 of the turret 21 to the contact roller 35 is the minimum stop distance from the start of the winding of the yarn Y so that the protection device 59 does not operate and stop the winding of the yarn Y. The protection device 59 is not operated until L (min1) is exceeded.

  With this control, the spinning and winding device 11 can secure a long time for moving the contact roller 35 from the first roller position LS to the second roller position L1, and the time for doffing the package 18 can be secured. Can be secured for a longer time.

DESCRIPTION OF SYMBOLS 11 Spinning winding device 12 Machine body 17 Winding tube 18 Package 21 Turret 22 Traverse guide 23 Rotating shaft 24 Turret drive device 25 Bobbin holder 26 Bobbin holder drive device 31 Slide box 33 Lifting drive device 35 Contact roller 37 Position sensor 38 Rotation sensor 41 Traverse Device 51 Control unit 53 Setting unit 55 Detection unit 57 Determination unit 59 Protection device B Winding bobbin Y thread

Claims (3)

A spinning and winding device for winding a spun yarn while switching a winding bobbin,
The aircraft,
A turret having two bobbin holders for holding a winding bobbin and rotating with respect to the machine body;
Corresponding to the winding bobbin winding and the rotation of the turret, a contact roller that moves so as to vary the distance from the rotation axis of the turret while maintaining a state in pressure contact with the winding bobbin;
A setting unit for setting the first turret rotation condition and the second turret rotation condition;
A detection unit for detecting the winding state of the yarn;
A determination unit that determines whether the winding state of the yarn detected by the detection unit has reached the first turret rotation condition or the second turret rotation condition;
A control unit for controlling the rotation of the turret and the movement of the contact roller,
The controller is
The contact roller is disposed at the first roller position, and the winding of the yarn around the winding bobbin is started with the turret disposed at the first turret position.
In the first period from when the determination unit determines that the first turret rotation condition has been reached after starting the winding of the yarn, the contact roller is made to correspond to the winding thickness of the winding bobbin from the first roller position. Moving to the second roller position and maintaining the turret stopped at the first turret position;
In the second period from when the determination unit determines that the first turret rotation condition has been reached until it is determined that the second turret rotation condition has been reached, the turret is moved from the first turret position to the second time. While rotating to the turret position, the contact roller is moved from the second roller position to the third roller position in correspondence with the rotation of the turret and the winding thickness of the winding bobbin,
Third period from determines that the determination unit has reached the second turret rotating condition until the winding bobbin reaches the fully wound, rotate the turret to the third turret position from said second turret position together is, the contact roller so as to correspond to wound expansion of rotating and winding bobbin of the turret to move from said third roller position to the fourth roller position,
The distance from the rotation axis of the turret to the fourth roller position is longer than the distance from the rotation axis of the turret to the first roller position, and the distance from the rotation axis of the turret to the second roller position. The distance from the rotation axis of the turret to the third roller position is shorter than the distance from the rotation axis of the turret to the first roller position, and the distance from the rotation axis of the turret to the second position is shorter. It is shorter than the distance to the roller position, and the distance from the rotation axis of the turret to the fourth roller position is longer than the distance from the rotation axis of the turret to the third roller position. Spinning and winding device. The contact roller is moved from the fourth roller position to the first roller position during a fourth period from when the winding bobbin reaches full winding until the next winding bobbin starts to be wound. The spinning and winding device according to claim 1 . The first roller position, which is the winding start position of the contact roller, is set so that the distance from the rotation shaft of the turret to the first roller position is shorter than the minimum stop distance, and the turret rotation distance from pivot shaft to the contact roller, since the start of the winding of the yarn to initially exceeds the minimum stopping distance, the protection device so as not to operate, it claim 1 or, wherein Item 3. The take-up device according to Item 2 .

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