JP2012224432A - Yarn winding device, and lot changing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn winding device and a lot changing method reducing a workload on an operator for removing a yarn supply bobbin before changing a lot, when changing the lot.SOLUTION: A winding unit 1 includes a bobbin support section 10, a bobbin supply section 11, a winding section 12, a yarn amount deciding section and a controller 80. The support section 10 supports the yarn supply bobbin 3. The supply section 11 holds a plurality of bobbins 3 and sequentially supplies the bobbins 3 to the support section 10. The winding section 12 winds yarn Y of the bobbin 3 as a package 6. The yarn amount deciding section decides the yarn amount of the yarn Y wound as the package 6. When lot change information is input and the yarn amount decided by the yarn amount deciding section reaches a yarn amount corresponding to full winding of the package 6, the controller 80 makes the winding section 12 stop an operation of winding the yarn Y and makes the support section 10 execute an operation of discharging the bobbin 3.

Description

  The present invention relates to a yarn winding device for winding a yarn of a yarn supplying bobbin to form a package, and a lot change method implemented in the yarn winding device.

  In order to produce a package of a predetermined specification, a yarn winding device that winds a yarn of a yarn supplying bobbin to form a package is known. As a supply method of the yarn supplying bobbin to such a yarn winding device, a so-called tray type in which the yarn supplying bobbin is set on a tray and continuously supplied from a spinning machine (see, for example, Patent Document 1) There is a magazine type in which yarn feeding bobbins are sequentially supplied from a magazine that houses a plurality of yarn feeding bobbins (see, for example, Patent Document 2).

Japanese Examined Patent Publication No. 7-49353 JP 2009-18930 A

  By the way, when changing the yarn type of the yarn to be wound around the winding tube (that is, the yarn type of the package to be formed), the winding operation is stopped after the package before the lot change is full. It is done. However, in a yarn winding device that employs a magazine-type supply system, the yarn supply bobbins of the yarn type before the lot change remain in the magazine and the bobbin support portion, so the operator needs to remove these yarn supply bobbins. However, due to the fact that the bobbin support is located at the bottom of the yarn winding device and on the rear side of the magazine, it is difficult to access the bobbin support, and as a result, an operator for removing the yarn feeding bobbin from the bobbin support. The work burden is extremely large.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a yarn winding device and a lot change method that can reduce an operator's work burden for removing a yarn feeding bobbin before a lot change.

  The yarn winding device according to the present invention is a yarn winding device that forms a package by winding a yarn of a yarn supplying bobbin, and includes a bobbin supporting portion that supports the yarn supplying bobbin, a plurality of yarn supplying bobbins, and a bobbin supporting device. A bobbin supply unit for sequentially supplying yarn feeding bobbins to the unit, a winding unit for winding the yarn of the yarn supplying bobbin supported by the bobbin support unit as a package, and a yarn thread wound as a package by the winding unit When the yarn amount determination unit for determining the amount and the lot change information are input, when the yarn amount determined by the yarn amount determination unit reaches the yarn amount corresponding to the full winding of the package, the winding unit A control unit that stops the yarn winding operation and causes the bobbin support unit to execute the yarn feeding bobbin discharging operation.

  In this yarn winding device, when lot change information for instructing a lot change to change the yarn type of a yarn to be wound as a package is input, the amount of yarn wound as a package corresponds to the full winding of the package. After the yarn amount is reached, the yarn winding operation is stopped and the yarn feeding bobbin discharging operation is executed. Therefore, according to this yarn winding device, it is possible to reduce the work burden on the operator for removing the yarn feeding bobbin before the lot change at the time of the lot change.

  In the yarn winding device of the present invention, the bobbin support unit receives the yarn supply bobbin from the bobbin supply unit, supports the yarn supply bobbin, or drives the bobbin support unit to discharge the yarn supply bobbin. And a second drive source for driving the bobbin supply unit so that the bobbin supply unit sequentially supplies the yarn feeding bobbin to the bobbin support unit, and the control unit receives lot change information. When the yarn amount determined by the yarn amount determination unit reaches a yarn amount corresponding to the full winding of the package, the winding unit stops the yarn winding operation and causes the second drive source to execute the driving. Instead, the bobbin support portion may be caused to execute the yarn feeding bobbin discharging operation by causing the first driving source to drive. According to this configuration, when the lot change is performed, the yarn feeding bobbin is discharged from the bobbin supporting portion without supplying the yarn supplying bobbin from the bobbin supplying portion to the bobbin supporting portion. Therefore, the yarn feeding bobbin is efficiently discharged. can do.

  In the yarn winding device of the present invention, the winding unit includes a package rotation amount detection unit that detects the rotation amount of the package, and the yarn amount determination unit determines the rotation amount detected by the package rotation amount detection unit. The yarn amount may be determined based on the yarn amount. According to this configuration, the yarn amount can be accurately determined with a simple configuration.

  In the yarn winding device of the present invention, the winding unit includes a winding drum for rotating the package, and a drum rotation amount detection unit that detects the rotation amount of the winding drum. The yarn amount may be determined based on the rotation amount detected by the drum rotation amount detection unit. According to this configuration, the yarn amount can be accurately determined with a simple configuration.

  The yarn winding device of the present invention further includes a yarn traveling amount detection unit that detects a yarn traveling amount corresponding to at least one of the traveling speed and the traveling length of the yarn between the bobbin support portion and the winding portion. The yarn amount determination unit may determine the yarn amount based on the yarn traveling amount detected by the yarn traveling amount detection unit. According to this configuration, the yarn amount can be accurately determined with a simple configuration.

  In the yarn winding device of the present invention, the winding unit includes a cradle that supports the package so as to be movable, and a position detection unit that detects the position of the cradle. The yarn amount determination unit is detected by the position detection unit. The yarn amount may be determined based on the determined position. According to this configuration, the yarn amount can be accurately determined with a simple configuration.

  In the yarn winding device of the present invention, the winding unit has a winding diameter detection unit that detects the winding diameter of the yarn wound as a package, and the yarn amount determination unit is detected by the winding diameter detection unit. The yarn amount may be determined based on the wound diameter. According to this configuration, the yarn amount can be accurately determined with a simple configuration.

  In addition, the lot change method of the present invention includes a bobbin support portion that supports a yarn supplying bobbin, a bobbin supply portion that holds a plurality of yarn supplying bobbins and sequentially supplies the yarn supplying bobbins to the bobbin supporting portion, and a bobbin supporting portion. The yarn winding device includes a winding unit that winds the yarn of the yarn feeding bobbin supported by the winding unit as a package, and a yarn amount determination unit that determines a yarn amount of the yarn wound as a package by the winding unit. When the lot change information is input, when the yarn amount determined by the yarn amount determination unit reaches the yarn amount corresponding to the full winding of the package, the yarn feed bobbin and the package A first step of cutting the yarn that is in between, and causing the winding unit to stop the winding operation of the yarn; and a second step of causing the bobbin support unit to execute the discharging operation of the yarn feeding bobbin after the first step; including.

  In this lot change method, when lot change information for instructing a lot change to change the type of yarn to be wound as a package is input, the amount of yarn wound as a package corresponds to the full winding of the package. After the yarn amount is reached, the yarn winding operation is stopped and the yarn feeding bobbin discharging operation is executed. Therefore, according to this lot change method, it is possible to reduce an operator's work burden for removing the yarn feeding bobbin before the lot change at the time of the lot change.

  According to the present invention, it is possible to reduce an operator's work burden for removing a yarn feeding bobbin before a lot change at the time of a lot change.

It is a lineblock diagram of an automatic winder provided with two or more winding units which are yarn winding devices of one embodiment of the present invention. It is a side view of the winding unit of FIG. It is an enlarged view of the lower structure of the winding unit of FIG. It is a perspective view of the bobbin support part of the winding unit of FIG. It is a side view of the bobbin support part at the time of yarn feeding bobbin reception. It is a side view of the bobbin support part at the time of yarn feeding bobbin support. It is a side view of the bobbin support part at the time of yarn feeding bobbin discharging. FIG. 2 is a plan view of a claw wheel of a bobbin supply unit and its peripheral part of the winding unit of FIG. 1. FIG. 2 is a block diagram of a winding unit and a yarn amount determination unit of the winding unit in FIG. 1. It is a flowchart of the lot change method implemented in the winding unit of FIG. It is an enlarged view of the lower structure of the yarn winding unit which is the yarn winding device of another embodiment of the present invention.

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

  As shown in FIG. 1, the automatic winder 100 reciprocates along a plurality of winding units (yarn winding devices) 1 arranged in a line along the horizontal direction, and the winding units 1 in a parallel direction. A doffing device 4. Each winding unit 1 unwinds the yarn from a yarn feeding bobbin formed by a spinning machine and winds it around a winding tube to form a package of a predetermined specification (a predetermined yarn type, a predetermined yarn amount, a predetermined shape, etc.). The doffing device 4 collects the package formed by the winding unit 1 from the winding unit 1 and attaches a winding tube to the winding unit 1. Hereinafter, in this embodiment, a tube for winding a yarn is referred to as a winding tube 7, and a winding tube 7 around which the yarn is wound is referred to as a package 6. Further, the package 6 in which the amount of yarn defined as a product is wound around the winding tube 7 is defined as a fully wound package 6.

  As shown in FIG. 2, the winding unit 1 includes a bobbin support unit 10, a bobbin supply unit 11, and a winding unit 12. The bobbin support portion 10 supports the cylindrical yarn feeding bobbin 3 in an upright state. The bobbin supply unit 11 holds a plurality of yarn supply bobbins 3 and sequentially supplies the yarn supply bobbins 3 to the bobbin support unit 10. The winding unit 12 unwinds the yarn Y from the yarn supplying bobbin 3 supported by the bobbin support unit 10 and winds the yarn Y around the winding tube 7 until the yarn amount corresponds to a full winding.

  In the yarn traveling path from the bobbin support unit 10 to the winding unit 12, the unwinding assisting device 13, the tension applying device 14, the yarn joining device 15, the clearer (yarn defect detecting device) 16, in order from the bobbin support unit 10 side. A waxing device 17 is installed. The bobbin support unit 10, bobbin supply unit 11, winding unit 12, unwinding assisting device 13, tension applying device 14, yarn joining device 15, clearer 16 and waxing device 17 are attached to the machine base 2 of the winding unit 1. ing.

  The unwinding assisting device 13 includes a cylinder 13a that covers the upper portion of the yarn supplying bobbin 3, and a yarn detection sensor 13b that detects the yarn Y at the upper portion of the yarn supplying bobbin 3 inside the cylinder 13a. The unwinding assisting device 13 lowers the cylindrical body 13a along with the unwinding of the yarn Y from the yarn supplying bobbin 3 so that the yarn detection sensor 13b detects the yarn Y on the upper portion of the yarn supplying bobbin 3. The so-called balloon resistance is reduced, and the unwinding of the yarn Y from the yarn feeding bobbin 3 is assisted. As the yarn detection sensor 13b, for example, an optical sensor having a light emitting element and a light receiving element can be used.

  The tension applying device 14 applies a predetermined tension to the traveling yarn Y. As the tension applying device 14, for example, a gate-type device having a fixed comb tooth and a movable comb tooth disposed so as to be movable with respect to the fixed comb tooth can be used.

  The yarn joining device 15 is a lower yarn on the bobbin support portion 10 side at the time of yarn cutting performed when the clearer 16 detects a yarn defect, or at the time of yarn breakage occurring during the unwinding of the yarn Y from the yarn feeding bobbin 3. And the upper thread on the winding unit 12 side. The yarn joining device 15 includes, for example, an untwisting nozzle that untwists the upper yarn end and the lower yarn end, and a twisting nozzle that twists the untwisted yarn ends by causing a swirling air flow to act on them. An air splicer can be used.

  The clearer 16 detects yarn defects such as slabs. The clearer 16 is provided with a cutter for cutting the yarn Y when a yarn defect is detected. The waxing device 17 applies wax to the yarn Y as necessary.

  Above and below the yarn joining device 15, a lower yarn catching guide portion 18 for sucking and catching the lower yarn on the yarn feeding bobbin 3 side and guiding it to the yarn joining device 15, and an upper yarn on the take-up tube 7 side are sucked and caught. An upper thread catching guide portion 19 for guiding the yarn joining device 15 is provided. The lower thread catching guide portion 18 is configured in a pipe shape, and is rotatable up and down around a shaft 18a. A suction port 18 b is provided at the tip of the lower thread catching guide portion 18. Similarly, the upper thread catching guide portion 19 is configured in a pipe shape, and is rotatable up and down around a shaft 19a. A mouse 19 b is provided at the tip of the upper thread catching guide portion 19. An appropriate negative pressure source is connected to the lower thread catching guide portion 18 and the upper thread catching guide portion 19. Thereby, the lower thread catching guide part 18 sucks air from the suction port 18b and catches the lower thread end, and the upper thread catching guide part 19 sucks air from the mouse 19b and catches the upper thread end.

  The winding unit 12 includes a cradle 20 and a winding drum 21. The cradle 20 includes a pair of cradle arms that rotatably and detachably support the take-up tube 7 and the package 6. The winding drum 21 has a drum groove for traversing the yarn Y, and can freely contact the surface of the yarn Y (the surface of the package 6) wound around the winding tube 7 supported by the cradle 20. It has become. The winding unit 12 rotates the winding drum 21 using a drive motor in a state where the winding drum 21 is in contact with the surface of the package 6. Thus, the winding unit 12 rotates the package 6 while traversing the yarn Y, and winds the yarn Y of the yarn supplying bobbin 3 as the package 6.

  Next, the bobbin support part 10 will be described in detail. As shown in FIG. 3, the bobbin support unit 10 includes a bobbin support unit frame 30, a bobbin support discharge mechanism 31, and a drive motor (first drive source) 32. The bobbin support part frame 30 is detachably provided at the lower part of the machine base 2. The bobbin support discharge mechanism 31 is provided on the bobbin support part frame 30 and supports the yarn supply bobbin 3 (actual bobbin) wound with a predetermined amount of yarn Y, and also provides an unnecessary yarn supply bobbin 3 (empty empty yarn). The bobbin or the remaining thread bobbin with a little remaining thread) is discharged. The drive motor 32 is attached to the bobbin support part frame 30 and drives the bobbin support discharge mechanism 31.

  The bobbin support / discharge mechanism 31 includes a bobbin holding peg 33 and a spring plate 34. The bobbin holding peg 33 is inserted into the cylindrical yarn supplying bobbin 3 and holds the yarn supplying bobbin 3 in an upright state. The bottom of the yarn feeding bobbin 3 held by the bobbin holding peg 33 is in contact with the spring plate 34.

  As shown in FIGS. 4, 5, 6 and 7, the bobbin holding peg 33 includes a protruding first holding piece 33a and a protruding second holding piece shorter than the first holding piece 33a. 33b. The first holding piece 33 a is attached to the end portion of the shaft 42 via the base portion 35 so as to be rotatable relative to the shaft 42. The second holding piece 33 b is connected to the shaft 42 so as to be rotatable integrally with the shaft 42. The shaft 42 is rotatably supported by the bobbin support portion frame 30.

  Furthermore, the first holding piece 33a is biased by a spring (not shown) so as to overlap the second holding piece 33b. That is, the second holding piece 33b connected to the shaft 42 and the first holding piece 33a biased by the spring are rotated with respect to the bobbin support portion frame 30 with the shaft 42 rotating. Rotate together.

  However, in the upright state, the first holding piece 33a is further restricted from rotating backward (counterclockwise in FIGS. 5, 6, and 7) by a stopper (not shown). On the other hand, unlike the first holding piece 33a, the second holding piece 33b is not regulated to rotate backward from the upright state, and rotates so as to tilt further backward than the first holding piece 33a. That is, the two holding pieces 33a and 33b can take two states, the overlapping state and the closed state (the state shown in FIGS. 5 and 7) and the open state (the state shown in FIG. 6).

  Further, the second holding piece 33 b is connected to a connecting rod 36 extending substantially horizontally via a swing piece 44 fixed to the shaft 42. The connecting rod 36 is connected to one end (floating end) of a swing piece 37 swingably provided on the bobbin support frame 30. The swing piece 37 is connected to the output shaft of the drive motor 32 via a pulley 38 and a belt 39.

  The jump plate 34 is disposed so as to sandwich the first holding piece 33 a and the second holding piece 33 b of the bobbin holding peg 33 from both sides in the extending direction of the shaft 42. The jump plate 34 is rotatably attached to the bobbin support portion frame 30 via a shaft 40. A swing piece 41 is fixed to the shaft 40, and the swing piece 41 is connected to the swing piece 44 via a connecting rod 45. The jump plate 34 is a substantially horizontal bobbin support position (position in FIG. 6), and a bobbin receiving position (position in FIG. 5) rotated forward from the bobbin support position (clockwise direction in FIGS. 5, 6, and 7). , And the bobbin discharge position (position in FIG. 7) rotated further forward than the bobbin receiving position, the shaft 40 is rotatable about the rotation axis.

  The drive motor 32 is composed of a stepping motor and is controlled by a pulse signal from a unit control device 80 described later. The drive motor 32 supports the bobbin so that the bobbin support unit 10 sequentially receives the yarn supply bobbin 3 from the bobbin supply unit 11 and supports the yarn supply bobbin 3 or discharges the yarn supply bobbin 3 as follows. The unit 10 is driven.

  That is, the rotational driving force of the drive motor 32 is transmitted to the connecting rod 36 via the swing piece 37, and the second holding piece 33b of the bobbin holding peg 33 is rotated by moving the connecting rod 36 in the horizontal direction. To drive. Further, when the second holding piece 33b is rotationally driven in this way, the first holding piece 33a connected to the second holding piece 33b rotates integrally with the second holding piece 33b overlapping.

  However, as described above, when the connecting rod 36 further moves rearward with the first holding piece 33a standing upright (state shown in FIG. 6), the first holding piece 33a is further moved by a stopper (not shown). Therefore, only the second holding piece 33b is rotated backward. As a result, both holding pieces 33a and 33b are opened, and both holding pieces 33a and 33b are in close contact with the inner surface of the bobbin in a state where the holding pieces 33a and 33b are inserted into the cylindrical yarn feeding bobbin 3 (see FIGS. 3 and 6). Therefore, the yarn feeding bobbin 3 is prevented from coming off from the bobbin holding peg 33.

  The bobbin holding pegs 33 are respectively supplied when the yarn supplying bobbin 3 is supplied from the bobbin supplying unit 11, when the yarn supplying bobbin 3 is being unwound and when the yarn supplying bobbin 3 is discharged. It is comprised so that three different positions can be taken. That is, the bobbin holding peg 33 is a bobbin receiving position (position of FIG. 5) inclined slightly forward with respect to the vertical direction, a bobbin support position (position of FIG. 6) where both holding pieces 33a and 33b are opened in an upright state, In addition, it is rotatable over a bobbin discharge position (position in FIG. 7) inclined further forward than the bobbin receiving position.

  Further, when the connecting rod 36 is driven in the horizontal direction by the drive motor 32 and the bobbin holding peg 33 rotates, the driving force of the drive motor 32 is also applied to the spring plate 34 via the connecting rod 45 and the swinging piece 41. As a result, the spring plate 34 is rotated.

  As shown in FIG. 6, when the bobbin holding peg 33 is in the upright bobbin support position, the jump plate 34 is in a substantially horizontal bobbin support position and is held on the upper surface of the jump plate 34 by the bobbin holding peg 33. The bottom of the supplied yarn feeding bobbin 3 is in contact. From this state, as shown in FIG. 7, when the jump plate 34 rotates forward, the bobbin holding peg 33 also rotates forward, and both the holding pieces 33 a and 33 b are closed, and the yarn feeding bobbin 3 The retaining state of is released. Further, when the jumping plate 34 is rotated to the bobbin discharging position, the yarn feeding bobbin 3 is pulled up from the bobbin holding peg 33 while being flipped forward by the jumping plate 34, so that the yarn feeding bobbin 3 is removed from the bobbin support portion 10. It is discharged outside (forward).

  The bobbin holding peg 33, the spring plate 34, the drive motor 32, and the like constituting the bobbin support 10 are all attached to a bobbin support frame 30 that is detachable from the machine base 2. That is, the bobbin support part 10 is detachably provided to the machine base 2. Therefore, it is possible to remove the bobbin support 10 from the machine base 2 for replacement or repair. The bobbin support part frame 30 is detachably attached to the machine base 2 by, for example, screwing.

  Next, the bobbin supply unit 11 will be described. As shown in FIG. 3, the bobbin supply unit 11 includes a supply mechanism 51 and a drive motor (second drive source) 52. The supply mechanism 51 supplies the yarn supplying bobbin 3 to the bobbin support portion 10. The drive motor 52 drives the supply mechanism 51.

  The supply mechanism 51 has a magazine 53 and a guide chute 54. The magazine 53 can accommodate a plurality of yarn feeding bobbins 3 formed by a spinning machine. The guide chute 54 is disposed below the magazine 53 and drops one of the plurality of yarn feeding bobbins 3 accommodated in the magazine 53 while guiding it toward the bobbin support portion 10. In addition, a supply unit frame 50 is detachably provided on the machine base 2 by, for example, screwing. The magazine 53 and the guide chute 54 are attached to the supply unit frame 50 in a posture slightly inclined with respect to the vertical direction so as to face the bobbin holding peg 33 of the bobbin support unit 10.

  The magazine 53 is rotatable about a rotation shaft 55 supported by the supply unit frame 50. Inside the magazine 53, a plurality of bobbin storage spaces 56 for storing the yarn supply bobbins 3 wound with a predetermined amount of the yarn Y are arranged in the circumferential direction. A bobbin receiving plate 57 that receives the yarn feeding bobbin 3 stored in each bobbin storage space 56 is provided below the magazine 53. The bobbin receiving plate 57 has a notch not shown so as to face the guide chute 54. As a result, when the magazine 53 is rotated and the yarn supplying bobbin 3 is positioned above the notch, the yarn supplying bobbin 3 falls to the guide chute 54 and further to the bobbin support 10 through the notch. .

  A cylindrical member 58 that is externally mounted on the rotary shaft 55 is fixed to the lower portion of the magazine 53, and a claw wheel 59 is fixed to the outer peripheral surface of the cylindrical member 58. That is, the ratchet wheel 59 and the magazine 53 rotate integrally. As shown in FIG. 8, a stop latch 74 that engages with the claw wheel 59 and restricts its rotation and a rotatable roller 75 are provided outside the claw wheel 59. The stop latch 74 and the roller 75 are connected via a connecting member 76. In addition, a swivel plate 60 is provided on the tubular member 58 so as to be rotatable with respect to the tubular member 58. The swivel plate 60 is provided with a pin 60a and a claw portion 60b. Accordingly, when the driving force of the drive motor 52 is transmitted to the turning plate 60 and the turning plate 60 performs a turning operation, the pin 60a of the turning plate 60 pushes out the roller 75, thereby the stop latch 74 connected to the roller 75. Is removed from the claw wheel 59, and the rotation restriction of the claw wheel 59 is released. And the magazine 53 rotates when the claw part 60b of the turning plate 60 rotates the claw wheel 59 by one pitch.

  As shown in FIG. 3, the guide chute 54 has a pair of first guide plates 61, a pair of second guide plates 62, and a pair of third guide plates 63. The pair of first guide plates 61 are fixed to the supply unit frame 50. The pair of second guide plates 62 is provided so as to be rotatable with respect to the first guide plate 61.

  The first guide plate 61 and the second guide plate 62 are connected via a rod 64, and the second guide plate 62 rotates outward and inward with respect to the first guide plate 61 around the rod 64. It is free to move. The rod 64 is connected to a shaft member 67 via a lever 66, and the shaft member 67 is connected to an output shaft of the drive motor 52 fixed to the supply unit frame 50 via a pulley 68 and a belt 69. Has been. Furthermore, one end of an L-shaped lever 70 is fixed to the shaft member 67, and the other end of the lever 70 is connected to a turning plate 60 provided in the magazine 53 via a connecting member 73. . Thus, when the shaft member 67 rotates, the lever 70 swings up and down around the shaft member 67, and the connecting member 73 rotates along a plane parallel to the swivel plate 60. Then, the turning plate 60 is turned by the rotation of the connecting member 73.

  The third guide plate 63 is disposed outside the first guide plate 61 and the second guide plate 62 and is rotatably connected to the first guide plate 61 via a shaft 71. The third guide plate 63 is urged inward (in the closing direction) by a torsion spring 72 provided on the shaft 71 and pressed against the second guide plate 62.

  The drive motor 52 is a stepping motor, and is controlled by a pulse signal from a unit controller 80 described later. The drive motor 52 drives the bobbin supply unit 11 so that the bobbin supply unit 11 sequentially supplies the yarn feeding bobbin 3 to the bobbin support unit 10 as follows.

  That is, the rotational driving force of the drive motor 52 is first transmitted to the shaft member 67 via the belt 69 and the pulley 68. The rotation of the shaft member 67 is transmitted to the revolving plate 60 via the lever 70, and the pin 60 a of the revolving plate 60 pushes the roller 75 of the claw wheel 59, so that the rotation of the claw wheel 59 by the stop latch 74 is restricted. Canceled. Further, the claw portion 60b of the turning plate 60 rotates the claw wheel 59 by one pitch. Then, the magazine 53 that rotates integrally with the ratchet wheel 59 is also rotated, whereby the bobbin housing space 56 is shifted by one in the circumferential direction. At this time, the single yarn supplying bobbin 3 positioned above the notch portion of the bobbin receiving plate 57 falls downward from the notch portion.

  On the other hand, in the guide chute 54, when the yarn feeding bobbin 3 is not supplied from the magazine 53, the pair of second guide plates 62 and the pair of third guide plates 63 are outward (in the opening direction) with respect to the first guide plate 61. It is in a rotated state. This prevents the yarn feeding bobbin 3 that has been accidentally dropped from the magazine 53 from reaching the bobbin support portion 10 via the guide chute 54 and also from the yarn feeding bobbin 3 in addition to when the original yarn feeding bobbin 3 is supplied. This is because the pair of second guide plates 62 and the pair of third guide plates 63 are retracted so as not to contact the balloon of the yarn Y during the unwinding of the yarn Y.

  From this state, when the shaft member 67 is rotationally driven by the drive motor 52, the rotation is transmitted to the second guide plate 62 via the lever 66 and the rod 64, and the second guide plate 62 is transmitted to the first guide plate 61. Rotate inward (in the closing direction). As the second guide plate 62 rotates, the third guide plate 63 pressed against the second guide plate 62 by the torsion spring 72 also rotates inward with respect to the first guide plate 61. Then, the pair of second guide plates 62 and the pair of third guide plates 63 rotate inward from the open state with respect to the first guide plate 61, respectively, so that the supply from the magazine 53 toward the bobbin support portion 10 is performed. A supply passage for the yarn bobbin 3 is formed. Thereby, the yarn feeding bobbin 3 dropped from the magazine 53 is guided to the bobbin support portion 10 by the guide plates 61, 62, 63.

  Note that the magazine 53, the guide chute 54, the second drive motor 52, and the like constituting the bobbin supply unit 11 are all attached to a supply unit frame 50 that is detachable from the machine base 2. That is, the bobbin supply unit 11 is detachably attached to the machine base 2. Therefore, it is possible to remove the bobbin supply unit 11 from the machine base 2 for replacement or repair. The supply unit frame 50 is detachably attached to the machine base 2 by, for example, screwing.

  Next, a unit control device (control unit) 80 that controls the operation of the winding unit 1 and a yarn amount determination unit 85 that determines the amount of yarn Y wound as the package 6 will be described.

  As shown in FIGS. 1 and 3, the unit control device 80 receives a command from the control device 101 that controls the overall operation of the automatic winder 100, and receives the bobbin support unit 10, the bobbin supply unit 11, and the winding unit. Each part of the winding unit 1 including 12 is controlled. The unit controller 80 includes a CPU that is an arithmetic processing unit, a ROM that stores a program executed by the CPU and data used for the program, a RAM that temporarily stores data when the program is executed, and the like.

  As shown in FIG. 9, the yarn amount determination unit 85 uses the rotation amount of the package 6 detected by the package rotation amount detection unit 86 and the yarn Y of the yarn Y wound as the package 6 by the winding unit 12. Determine the amount. The package rotation amount detection unit 86 is provided in the winding unit 12 and detects the rotation amount of the package 6. The package rotation amount detection unit 86 is configured as follows, for example. That is, the package rotation amount detection unit 86 is provided on one cradle arm of the cradle 20. The rotation amount detection unit 86 includes a Hall IC and a disk-shaped magnet that is multipolarly magnetized in the circumferential direction. The disc-shaped magnet is configured to rotate integrally with the rotation shaft of the package 6. Further, the Hall IC is disposed in the vicinity of the circumferential end of the disk-shaped magnet. With the above configuration, when the package 6 rotates, the disk-shaped magnet also rotates integrally, and the Hall IC detects a change in the magnetic field caused by the rotation of the disk-shaped magnet. Then, the package rotation amount detection unit 86 outputs the number of pulse signals per rotation of the package 6.

  Here, the winding operation of the winding unit 1 under the control of the unit controller 80 will be described. First, the unit controller 80 causes the bobbin support unit 10 to perform a receiving operation of the yarn feeding bobbin 3. That is, the unit control device 80 drives the drive motor 32 in the bobbin support portion 10 to position the bobbin holding peg 33 and the jump plate 34 at the bobbin receiving position as shown in FIG.

  On the other hand, the unit controller 80 causes the bobbin supply unit 11 to execute the supply operation of the yarn feeding bobbin 3. That is, the unit control device 80 drives the drive motor 52 in the bobbin supply unit 11 to rotate the magazine 53, and moves the second guide plate 62 and the third guide plate 63 of the guide chute 54 to the first guide plate 61. (That is, a supply passage for the yarn feeding bobbin 3 from the magazine 53 toward the bobbin support 10 is formed).

  Thereby, one yarn feeding bobbin 3 falls from the magazine 53, and the dropped yarn feeding bobbin 3 is guided by the guide chute 54 and reaches the bobbin support portion 10. Then, the first holding piece 33 a and the second holding piece 33 b of the bobbin holding peg 33 are inserted into the yarn feeding bobbin 3 reaching the bobbin support portion 10. At the same time, the bottom of the yarn feeding bobbin 3 comes into contact with the spring plate 34. Thus, the yarn feeding bobbins 3 are sequentially supplied from the bobbin supply unit 11 to the bobbin support unit 10 one by one.

  The unit controller 80 drives the drive motor 52 to drive the guide chute after the bobbin holding peg 33 holds the yarn feeding bobbin 3 (after the bobbin holding peg 33 is inserted into the yarn feeding bobbin 3). The second guide plate 62 and the third guide plate 63 are rotated outward with respect to the first guide plate 61 (that is, the guide chute 54 is returned to the open state).

  Subsequently, the unit control device 80 causes the bobbin support unit 10 to perform the support operation of the yarn feeding bobbin 3. That is, the unit control device 80 drives the drive motor 32 in the bobbin support unit 10 to position the bobbin holding peg 33 and the jump plate 34 at the bobbin support position as shown in FIG. Thereby, the yarn feeding bobbin 3 is held by the bobbin holding peg 33 and supported by the bobbin support portion 10. Subsequently, the unit control device 80 causes each part of the winding unit 1 to perform the forming operation of the package 6 such as causing the winding unit 12 to perform the winding operation of the yarn Y.

  When the yarn Y of the yarn feeding bobbin 3 supported by the bobbin support portion 10 is all wound up (or the yarn defect of the yarn feeding bobbin 3 is poor, for example, the yarn defect is frequently detected by the clearer 16. If it is determined, the unit control device 80 causes the winding unit 12 to temporarily stop the winding operation of the yarn Y, and causes the bobbin support unit 10 to perform the discharging operation of the yarn feeding bobbin 3. That is, the unit control device 80 drives the drive motor 32 in the bobbin support portion 10 to position the bobbin holding peg 33 and the jump plate 34 at the bobbin discharge position as shown in FIG. Thereby, the yarn feeding bobbin 3 is discharged forward from the bobbin support portion 10.

  Thereafter, the unit control device 80 performs the receiving operation of the yarn supplying bobbin 3, the supplying operation of the yarn supplying bobbin 3, the supporting operation of the yarn supplying bobbin 3, the winding operation of the yarn Y, and the discharging operation of the yarn supplying bobbin 3. Until all the parts of the winding unit 1 are repeatedly executed until the fully wound state is reached (that is, until the package 6 having a predetermined specification is formed). The unit control device 80 determines that the package 6 has been fully wound when the yarn amount determined by the yarn amount determination unit 85 has reached the yarn amount corresponding to the full winding of the package 6. The fully wound package 6 formed by the winding unit 1 is collected by the doffing device 4, and the winding tube 7 is mounted on the winding unit 1 again by the doffing device 4.

  Next, the lot change operation of the winding unit 1 (the lot change method performed in the winding unit 1) under the control of the unit controller 80 will be described with reference to the flowchart of FIG. First, when lot change information is input to the control device 101 by an operator, the lot change information is output from the control device 101 to each winding unit 1. The lot change information is information for instructing a lot change for changing the yarn type of the yarn Y to be wound around the package 6 (that is, the yarn type of the package 6 to be formed).

  At this time, the unit controller 80 of each winding unit 1 determines whether or not lot change information has been input from the controller 101 (step S01). It is determined whether or not the yarn amount determined by the yarn amount determination unit 85 has reached a yarn amount corresponding to the full winding of the package 6 (step S02).

  Then, when the yarn amount determined by the yarn amount determination unit 85 reaches the yarn amount corresponding to the full winding of the package 6, the unit control device 80 causes the clearer 16 to perform the yarn Y cutting operation (step) S03). That is, the unit control device 80 causes the cutter attached to the clearer 16 to cut the yarn Y that passes between the yarn feeding bobbin 3 and the package 6. Furthermore, the unit controller 80 causes the winding unit 12 to stop the winding operation of the yarn Y (step S04).

  Subsequently, the unit control device 80 causes the bobbin support portion 10 to execute the discharging operation of the yarn feeding bobbin 3 (step S05). That is, the unit controller 80 drives the drive motor 32 in the bobbin support portion 10 to position the bobbin holding peg 33 and the jump plate 34 at the bobbin discharge position. Thereby, the yarn feeding bobbin 3 is discharged forward from the bobbin support portion 10. At this time, the unit control device 80 does not cause the bobbin supply unit 11 to execute the supply operation of the yarn supplying bobbin 3. That is, the unit controller 80 does not drive the drive motor 52 in the bobbin supply unit 11.

  Thereafter, the package 6 before the lot change formed by the winding unit 1 is collected, and the winding tube 7 after the lot change is attached to the winding unit 1. On the other hand, the yarn feed bobbin 3 after the lot change is loaded into the magazine 53 of the bobbin supply unit 11 by the operator. As described above, the winding operation of the winding unit 1 under the control of the unit controller 80 is performed.

  When the lot change information is input, the unit control device 80 calculates the number of yarn feeding bobbins 3 required until the package 6 in progress at that time is fully wound, and calculates the necessary number. You may display on the display part of the winding unit 1. FIG. The unit control device 80 divides the amount of yarn required until the package 6 is fully wound by the amount of yarn per full winding of the yarn feeding bobbin 3 before the lot change, so that the yarn feeding bobbin described above is obtained. The required number of 3 can be calculated. Here, the yarn amount required until the package 6 is fully wound is calculated based on the yarn amount determined by the yarn amount determination unit 85. The yarn amount per full winding of the yarn feeding bobbin 3 before the lot change is input and stored in advance.

  According to this, generation | occurrence | production of the useless operation | work which an operator throws into the magazine 53 the yarn feeding bobbin 3 before a lot change exceeding a required number can be suppressed. Further, with the remaining number of yarn feeding bobbins 3 before the lot change, it can be inferred that the package 6 in progress at the time when the lot change information is input cannot be fully wound.

  As described above, in the winding unit 1 and the lot change method implemented in the winding unit 1, when the lot change information is input, the yarn amount of the yarn Y wound up as the package 6 becomes the full winding of the package 6. After the corresponding yarn amount is reached, the winding operation of the yarn Y is stopped and the discharging operation of the yarn feeding bobbin 3 is executed. Therefore, according to the winding unit 1 and the lot change method implemented therein, it is possible to reduce an operator's work burden for removing the yarn feeding bobbin 3 before the lot change at the time of the lot change. In particular, the operator is difficult to access the bobbin support 10 because the bobbin support 10 is positioned at the bottom of the winding unit 1 and behind the bobbin supply 11. Therefore, the winding unit 1 that does not require the operation of removing the yarn feeding bobbin 3 from the bobbin support 10 and the lot change method implemented therein are extremely effective.

  In addition, the bobbin support unit 10 and the bobbin supply unit 11 are independent from each other by separate drive sources, such that the bobbin support unit 10 is driven by the drive motor 32 and the bobbin supply unit 11 is driven by the drive motor 52. To be driven. Then, when the lot change information is input, the unit controller 80 determines that when the yarn amount determined by the yarn amount determination unit 85 reaches the yarn amount corresponding to the full winding of the package 6, the winding unit 12 Then, the winding operation of the yarn Y is stopped, and the driving by the driving motor 32 is executed without executing the driving by the driving motor 52, thereby causing the bobbin support portion 10 to execute the discharging operation of the yarn feeding bobbin 3. Thereby, when the lot change is performed, the yarn feeding bobbin 3 is discharged from the bobbin supporting unit 10 without being supplied from the bobbin supplying unit 11 to the bobbin supporting unit 10, so that the yarn feeding from the bobbin supporting unit 10 is performed. The discharging operation of the bobbin 3 can be performed efficiently. That is, when the yarn feeding bobbin 3 is supplied again from the bobbin supplying unit 11 to the bobbin supporting unit 10 after the yarn feeding bobbin 3 is discharged from the bobbin supporting unit 10, the yarn feeding bobbin 3 is discharged from the bobbin supporting unit 10. Or the operator has to remove the yarn feeding bobbin 3 from the bobbin support portion 10, and such a situation is prevented and the discharging operation of the yarn feeding bobbin 3 from the bobbin support portion 10 is efficiently performed. Can be completed.

  Further, the yarn amount determination unit 85 determines the yarn amount of the yarn Y wound as the package 6 by the winding unit 12 based on the rotation amount of the package 6 detected by the package rotation amount detection unit 86. Thereby, the yarn amount of the yarn Y wound as the package 6 by the winding unit 12 can be accurately determined with a simple configuration.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the drive source that drives each of the bobbin support unit 10 and the bobbin supply unit 11 is not limited to the drive motors 32 and 52, and may be a fluid pressure cylinder such as an air cylinder. As an example, in the bobbin support portion 10A shown in FIG. 11, an air cylinder (first drive source) 32A is fixed to the bobbin support portion frame 30, and the rod tip of the air cylinder 32A is connected to the swing piece 90. ing. The swing axis of the swing piece 90 is the same as the swing axis of the swing piece 37 connected to the connecting rod 36. Accordingly, when the swing piece 90 is driven to swing by the air cylinder 32A, the driving force is transmitted to the connecting rods 36 and 45 via the swing piece 37, and the bobbin holding peg 33 and the jump plate 34 are driven to rotate. To do.

  Further, in the bobbin supply portion 11A shown in FIG. 11, an air cylinder (second drive source) 52A is fixed to the supply portion frame 50, and the rod tip of the air cylinder 52A is connected to the swing piece 91. . The swing piece 91 is connected to the shaft member 67. Accordingly, when the swing piece 91 is driven to swing by the air cylinder 52A, the shaft member 67 is driven to rotate, and the magazine 53 and the guide chute 54 are driven.

  As described above, if the air cylinders 32A and 52A are employed as the drive sources for driving the bobbin support portion 10A and the bobbin supply portion 11A, the pulleys 38 and 68, The belts 39, 69, etc. can be omitted. In particular, in the bobbin support portion 10A, the swing piece 90 that converts the reciprocating linear motion of the air cylinder 32A into a swing motion and the swing piece 37 that converts the swing motion into the reciprocating linear motion of the connecting rod 36 are omitted. It is also possible to drive the connecting rod 36 of the bobbin support portion 10A directly in the horizontal direction by the air cylinder 32A.

  Further, the bobbin support portion 10 may be configured such that the bobbin holding peg 33 and the spring plate 34 are independently driven by separate drive sources. Further, the bobbin supply unit 11 may be configured such that the magazine 53 and the guide chute 54 are independently driven by separate drive sources.

  The function of the unit control device 80 may be provided to the control device 101 that controls the entire automatic winder 100. Moreover, the bobbin support part 10 (10A) and the bobbin supply part 11 (11A) may be driven in conjunction with a common drive source. In this case, when lot change information is input, the unit control device 80 first starts winding when the yarn amount determined by the yarn amount determination unit 85 reaches the yarn amount corresponding to the full winding of the package 6. The take-up unit 12 stops the winding operation of the yarn Y. Then, the unit control device 80 causes the bobbin support unit 10 to execute the discharging operation of the yarn feeding bobbin 3 until all the yarn feeding bobbins 3 before the lot change held by the bobbin supplying unit 11 are eliminated.

  The winding unit 12 includes a drum rotation amount detection unit that detects the rotation amount of the winding drum 21 instead of the package rotation amount detection unit 86, and the yarn amount determination unit 85 includes a drum rotation amount detection unit. Based on the detected rotation amount of the winding drum 21, the yarn amount of the yarn Y wound as the package 6 by the winding unit 12 may be determined. Also in this case, the yarn amount can be accurately determined with a simple configuration. As the drum rotation amount detection unit, for example, as with the package rotation amount detection unit 86, a drum having a Hall IC and a disc-shaped magnet magnetized in the circumferential direction can be used. In that case, the drum rotation amount detection unit outputs the number of pulse signals per rotation of the winding drum 21.

  Further, in the winding unit 1, instead of the package rotation amount detection unit 86, the yarn traveling amount corresponding to at least one of the traveling speed and the traveling length of the yarn Y between the bobbin support unit 10 and the winding unit 12. The yarn travel amount detection unit 85 includes a yarn travel amount detection unit 85 for detecting the yarn Y of the yarn Y wound as the package 6 by the winding unit 12 based on the yarn travel amount detected by the yarn travel amount detection unit. The amount may be determined. Also in this case, the yarn amount can be accurately determined with a simple configuration. As the yarn travel amount detection unit, for example, a photoelectric constant length device or a yarn speed sensor can be used. More specifically, the yarn travel amount detection unit is an optical type, and projects a yarn Y having innumerable fluff onto the light receiving element, and detects a change in photocurrent that occurs when the projected yarn travels. There is a method of processing using the so-called spatial filter principle and calculating the traveling speed or traveling length of the yarn Y using this.

  The winding unit 12 includes a position detection unit that detects the position (for example, an angle) of the cradle 20 instead of the package rotation amount detection unit 86, and the yarn amount determination unit 85 is detected by the position detection unit. Based on the position of the cradle 20, the yarn amount of the yarn Y wound as the package 6 by the winding unit 12 may be determined. Also in this case, the yarn amount can be accurately determined with a simple configuration. As the position detection unit, for example, a sensor that detects the angle of the cradle 20 can be used.

  The winding unit 12 has a winding diameter detection unit that detects the winding diameter of the yarn Y wound as the package 6 instead of the package rotation amount detection unit 86, and the yarn amount determination unit 85 has a winding diameter. The yarn amount of the yarn Y wound as the package 6 by the winding unit 12 may be determined based on the winding diameter detected by the detection unit. Also in this case, the yarn amount can be accurately determined with a simple configuration. As the winding diameter detection unit, for example, a sensor that detects the winding diameter of the yarn Y wound as the package 6 can be used. More specifically, as the winding diameter detection unit, there is one that detects the current winding diameter of the yarn Y in the winding tube 7 by the reaction of a plurality of photoelectric sensors provided on the cradle arm of the cradle 20. In this sensor, a light projecting sensor may be provided on one cradle arm and a light receiving sensor may be provided on the other cradle arm, and the winding diameter may be detected by detecting transmitted light. A light projecting sensor and a light receiving sensor may be provided on the arm, and the winding diameter may be detected by detecting reflected light.

  DESCRIPTION OF SYMBOLS 1 ... Winding unit (yarn winding device), 3 ... Yarn feeding bobbin, 7 ... Winding tube, 10 ... Bobbin support part, 11 ... Bobbin supply part, 12 ... Winding part, 20 ... Cradle, 21 ... Winding drum 32 ... Drive motor (first drive source), 32A ... Air cylinder (first drive source), 52 ... Drive motor (second drive source), 52A ... Air cylinder (second drive source), 80 ... Unit control device (Control unit), 85... Yarn amount determination unit, 86... Package rotation amount detection unit, Y.

Claims (8)

A yarn winding device for winding a yarn of a yarn feeding bobbin to form a package,
A bobbin support for supporting the yarn feeding bobbin;
A bobbin supply unit that holds a plurality of the yarn supply bobbins and sequentially supplies the yarn supply bobbins to the bobbin support unit;
A winding unit for winding the yarn of the yarn supplying bobbin supported by the bobbin supporting unit as a package;
A yarn amount determination unit for determining a yarn amount of the yarn wound as the package by the winding unit;
When the lot change information is input, when the yarn amount determined by the yarn amount determination unit reaches the yarn amount corresponding to the full winding of the package, the winding operation of the yarn to the winding unit And a control unit that causes the bobbin support unit to execute the discharging operation of the yarn feeding bobbin. A first drive source that drives the bobbin support so that the bobbin support receives the yarn supply bobbin from the bobbin supply, supports the yarn supply bobbin, or discharges the yarn supply bobbin;
A second drive source for driving the bobbin supply unit such that the bobbin supply unit sequentially supplies the yarn feeding bobbin to the bobbin support unit;
When the lot change information is input, the control unit determines that the yarn amount determined by the yarn amount determination unit reaches the yarn amount corresponding to the full winding of the package. The bobbin support portion is caused to execute the discharge operation of the yarn supply bobbin by stopping the yarn winding operation and causing the first drive source to execute the drive without executing the drive by the second drive source. The yarn winding device according to claim 1. The winding unit includes a package rotation amount detection unit that detects a rotation amount of the package,
The yarn winding device according to claim 1, wherein the yarn amount determination unit determines the yarn amount based on the rotation amount detected by the package rotation amount detection unit. The winding unit includes a winding drum for rotating the package, and a drum rotation amount detection unit that detects a rotation amount of the winding drum,
The yarn winding device according to claim 1 or 2, wherein the yarn amount determination unit determines the yarn amount based on the rotation amount detected by the drum rotation amount detection unit. A yarn traveling amount detection unit that detects a yarn traveling amount corresponding to at least one of the traveling speed and traveling length of the yarn between the bobbin support portion and the winding unit;
3. The yarn winding device according to claim 1, wherein the yarn amount determination unit determines the yarn amount based on the yarn traveling amount detected by the yarn traveling amount detection unit. The winding unit has a cradle that movably supports the package, and a position detection unit that detects a position of the cradle,
The yarn winding device according to claim 1 or 2, wherein the yarn amount determination unit determines the yarn amount based on the position detected by the position detection unit. The winding unit has a winding diameter detection unit that detects a winding diameter of the yarn wound as the package;
The yarn winding device according to claim 1 or 2, wherein the yarn amount determination unit determines the yarn amount based on the winding diameter detected by the winding diameter detection unit. A bobbin support part for supporting a yarn supply bobbin, a bobbin supply part for holding a plurality of the yarn supply bobbins and sequentially supplying the yarn supply bobbins to the bobbin support part, and the supply unit supported by the bobbin support part Lot implemented in a yarn winding device comprising: a winding unit that winds the yarn bobbin as a package; and a yarn amount determination unit that determines a yarn amount of the yarn wound as the package by the winding unit Change method,
When lot change information is input, when the yarn amount determined by the yarn amount determination unit reaches the yarn amount corresponding to the full winding of the package, it passes between the yarn supplying bobbin and the package. A first step of cutting the yarn and causing the winding unit to stop the winding operation of the yarn;
A lot change method comprising: a second step of causing the bobbin support portion to perform a discharging operation of the yarn feeding bobbin after the first step.

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