JP2011006179A - Yarn winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn winding device which realizes energy-saving performance, and is constituted so that a bobbin with residual yarn can be efficiently resupplied.SOLUTION: An automatic winder 10 includes a plurality of winding units 92, a bobbin carrying conveyor 93 and a machine base control device 94. The winding units 92 transmit the number of discharge bobbins being discharged yarn feeding bobbins to the machine base control device 94. The bobbin carrying conveyor 93 carries the discharged bobbins discharged by the winding units 92 to be collected. The machine base control device 94 puts the bobbin carrying conveyor 93 in a stopping state at first, and stops again after carrying the discharge bobbins by driving the bobbin carrying conveyor 93 when the total number of discharge bobbins discharged from the plurality of winding units 92 reaches a predetermined conveyor driving threshold value. The bobbin carrying conveyor 93 is intermittently driven through the above repetition.

Description

  The present invention relates to a yarn winding device that collects discharged yarn feeding bobbins by a conveyor.

  2. Description of the Related Art Conventionally, an automatic winder that is a yarn winding device is supplied with yarn produced by a spinning machine or the like wound around a yarn feeding bobbin. The automatic winder winds up a plurality of yarn supplying bobbins while splicing them to generate a package having a predetermined length. In such an automatic winder, a configuration is known in which a yarn feeding bobbin discharged after completion of yarn unwinding is automatically collected. Patent Document 1 and Patent Document 2 disclose this type of automatic winder.

  The automatic winder of Patent Document 1 includes a plurality of winding units, and each winding unit can place a yarn feeding bobbin mounted on a tray at a predetermined winding position. The automatic winder further includes a bobbin supply belt conveyor and a bobbin discharge belt conveyor in the vicinity of the winding position. Each belt conveyor is configured to be able to transport a tray holding a yarn feeding bobbin. With this configuration, the yarn feeding bobbin that has been unwound by each winding unit is discharged together with the tray from the winding position to the belt conveyor for discharging the bobbin.

  Further, the automatic winder of Patent Document 1 includes a bobbin processing unit, and the yarn feeding bobbin discharged from the winding unit is conveyed to the bobbin processing unit together with a tray by a belt conveyor. In the bobbin processing unit, the remaining yarn amount in the yarn supplying bobbin is first detected by the remaining yarn detection device. When it is determined that there is no remaining yarn, an empty bobbin is removed from the tray, a new yarn feeding bobbin is installed on the tray by the bobbin supply device, and a spout process is performed. Thereafter, the new yarn supplying bobbin is conveyed together with the tray to the winding position of each winding unit by the belt conveyor for supplying the bobbin.

  In Patent Document 1, when the bobbin processing unit waits for a new yarn feeding bobbin to be installed on the tray from the bobbin supply device, the motors of the round belt and the flat belt that transport the tray are stopped to save energy. Also disclosed is a configuration for achieving the above.

  Further, in Patent Document 2, a winding unit and a discharge bobbin that is horizontally provided along the direction in which the plurality of winding units are arranged and discharged from the plurality of winding units are arranged in the direction in which the plurality of winding units are arranged. A discharge bobbin conveyor is disclosed which includes a horizontal conveyer and a rising conveyer.

Japanese Patent Laid-Open No. 2008-214064 JP 2009-1349 A

  In the configuration disclosed in Patent Document 1, when the bobbin processing unit waits for the bobbin to be supplied from the bobbin supply device, the motors of the round belt and the flat belt in the bobbin processing unit are stopped. On the other hand, energy saving is not considered at all for the belt conveyor for discharging the bobbin constituted by a long-distance belt conveyor, and there is room for improvement in this respect. Similarly, in the configuration of Patent Document 2, energy saving is not considered at all, and improvement is desired.

  In the automatic winder, yarn may remain on the yarn supplying bobbin discharged from the winding unit, and some of them may be set in the automatic winder and used again. In this regard, in the configuration of Patent Document 1, the yarn feeding bobbin discharged from the winding unit is once transported to the bobbin processing unit by the belt conveyor, and when there is a certain amount or more of remaining yarn by the remaining yarn detection device. When determined, the bobbin processing unit is transported to the winding unit by a belt conveyor. For this reason, long-distance reciprocal conveyance is required for selecting the yarn feeding bobbins, leading to a reduction in the supply efficiency of the yarn feeding bobbins.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a yarn winding device that can realize further energy saving and can efficiently re-supply a bobbin with a remaining yarn.

Means and effects for solving the problems

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

  According to an aspect of the present invention, a yarn winding device having the following configuration is provided. That is, the yarn winding device includes a plurality of winding units, a bobbin transport conveyor, and a control device. The winding unit winds the yarn drawn from the yarn supplying bobbin around the package. The bobbin conveyor conveys a discharged bobbin, which is a yarn feeding bobbin discharged by the winding unit, for collection. The said control apparatus controls so that the said bobbin conveyance conveyor may be driven intermittently.

  Thereby, the bobbin transport conveyor is stopped, and the discharge bobbin is transported after being stored to some extent on the bobbin transport conveyor, thereby providing a yarn winding device with excellent energy saving. Moreover, since the driving and stopping of the bobbin transport conveyor are automatically switched under the control of the control device, it is not necessary for the operator to operate the switch of the bobbin transport conveyor. Therefore, energy saving can be realized without reducing work efficiency. When the bobbin conveyor is stopped, the operator can easily collect the discharged bobbin with the remaining yarn from the bobbin conveyor, and if it is determined that it can be re-supplied, set it in the winding unit on the spot. be able to. Therefore, it is possible to reduce the burden on the operator regarding recovery of the discharged bobbin.

  In the yarn winding device, it is preferable that the control device changes an average conveyance distance per unit time of the bobbin conveyance conveyor according to the type of the yarn feeding bobbin.

  That is, when the type of the yarn feeding bobbin is different, the time interval at which the yarn feeding bobbin is discharged differs due to the difference in the winding length of the yarn. In this regard, in the above-described configuration, the discharged bobbin can be efficiently collected according to the characteristics of the yarn supplying bobbin, so that a configuration with excellent energy saving can be achieved.

  In the yarn winding device, it is preferable that the control device changes an average transport distance per unit time of the bobbin transport conveyor in accordance with a total number of discharged bobbins discharged from a plurality of winding units. .

  That is, the time interval at which the discharge bobbin is discharged varies due to the discharge bobbin with the remaining yarn being discharged. In this regard, in the above-described configuration, the discharge bobbin can be transported in consideration of the fluctuation of the time interval. Therefore, the recovery of the exhaust bobbin can be made more efficient, and a configuration excellent in energy saving can be achieved.

  In the yarn winding device, it is preferable that the control device starts driving the bobbin conveying conveyor when the total number of discharged bobbins discharged from the plurality of winding units reaches a predetermined number. .

  Thereby, even if the frequency with which the yarn feeding bobbin is actually discharged from the winding unit varies, the driving timing of the bobbin transport conveyor 93 can be flexibly changed accordingly. Therefore, the discharge bobbin can be efficiently collected while preventing the discharge bobbin from overflowing from the bobbin transport conveyor.

  In the yarn winding device, it is preferable that the control device drives the bobbin conveyor every predetermined time.

  Thereby, the intermittent drive of the bobbin conveyance conveyor 93 is realizable, without performing complicated control. Therefore, the configuration of the control device can be simplified.

  In the yarn winding device, it is preferable that the control device can change a conveyance speed of the bobbin conveyance conveyor.

  Thereby, since a conveyance conveyor can be conveyed with the suitable conveyance speed according to the condition, collection | recovery of an exhaust bobbin can be performed efficiently.

  In the yarn winding device, it is preferable that the yarn winding device includes a conveyor drive notification unit that notifies in advance of the start of driving of the bobbin transport conveyor.

  Thus, the operator can confirm that the bobbin transport conveyor is currently stopped when the conveyor drive notification unit is not operating, and that the drive will not be started for a while. Accordingly, the recovery of the discharge bobbin by the operator and the resupply operation to the winding unit can be performed efficiently.

  In the yarn winding device, each winding unit preferably includes a magazine type supply device for supplying the yarn feeding bobbin.

  Thereby, the winding unit can store a certain number of yarn supplying bobbins by the magazine type supply device. Therefore, the operator can supply the collected discharge bobbin to the winding unit almost always.

  In the yarn winding device, each of the winding units preferably includes a bobbin discharge cause notification unit that notifies the cause of the discharge bobbin being discharged.

  As a result, the operator can easily know what trouble has occurred in which winding unit. Therefore, it is possible to specify a winding unit that is likely to cause a problem. In addition, since the bobbin discharge cause notifying unit knows that the discharge bobbin with the remaining yarn has been discharged, the operator quickly finds the discharge bobbin with the remaining yarn, determines whether re-supply to the winding unit is possible, and the actual The resupply operation can be performed efficiently.

1 is an external perspective view of an automatic winder according to an embodiment of the present invention. The side view which shows the structure of a winding unit. The front view which shows schematic structure of a winding unit. The block diagram which shows the main structures of an automatic winder. The front view which shows the structure of a bobbin conveyance conveyor. The perspective view which shows a mode immediately after a bobbin conveyance conveyor drives. The perspective view which shows a mode that the bobbin conveyance conveyor is driving. The perspective view which shows a mode just before a bobbin conveyance conveyor stops.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of an automatic winder 10 according to an embodiment of the present invention.

  As shown in FIG. 1, the automatic winder (yarn winding device) 10 includes a plurality of winding units 92 arranged side by side, a bobbin transport conveyor 93, and a machine base control device (control device) 94.

  First, the winding unit 92 will be described with reference to FIGS. 1 to 3. FIG. 2 is a side view showing the configuration of the winding unit 92. FIG. 3 is a front view showing a schematic configuration of the winding unit 92.

  The winding unit 92 shown in FIG. 2 and the like is configured to unwind the yarn 20 from the supplied yarn supplying bobbin 21 and wind it around the winding bobbin 22 to form the package 30.

  As shown in FIG. 2, the winding unit 92 includes a magazine type supply device 60 for supplying the yarn supplying bobbin 21. The magazine type supply device 60 includes a magazine holding portion 61 that extends obliquely from the lower part of the winding unit 92 in the front upper direction, and a bobbin storage device 62 attached to the tip of the magazine holding portion 61. ing.

  The bobbin storage device 62 includes a magazine can 63, and the magazine can 63 is formed with a plurality of storage holes arranged in a circle. The magazine type supply device 60 is configured so that the yarn supply bobbin 21 can be supplied when the operator manually inputs the yarn supply bobbin 21 into the storage hole of the magazine can 63. In order to facilitate this bobbin supply operation, as shown in FIG. 1, in this embodiment, a bobbin supply box 91 capable of accommodating a large number of yarn supplying bobbins 21 is prepared. The bobbin supply box 91 is mounted on a carriage, and the bobbin supply box 91 can be easily moved to the winding unit 92 in which the yarn feeding bobbin 21 is reduced.

  The magazine can 63 shown in FIG. 2 and the like is configured to be capable of intermittent rotational feed driving by a motor (not shown). Then, by intermittently driving the magazine can 63 and switching between opening and closing of a control valve (not shown) provided in the magazine can 63, the yarn feeding bobbins 21 are dropped one by one on a bobbin supply path (not shown) of the magazine holding unit 61. Can be made. The yarn supplying bobbin 21 supplied to the bobbin supply path is guided to the yarn supplying bobbin holding portion 55 provided in the winding unit 92 in an inclined posture.

  The yarn feeding bobbin holding portion 55 is configured to be movable by receiving the power of the holding portion drive motor 28 shown in FIG. The holding unit drive motor 28 can rotate the yarn feeding bobbin holding unit 55 by a rotating unit (not shown) under the control of the unit control unit 50. The yarn feeding bobbin holding portion 55 rotates so as to cause the yarn feeding bobbin 21 from an oblique posture to an upright posture after receiving the yarn feeding bobbin 21 dropped through the bobbin supply path below. Accordingly, the yarn feeding bobbin 21 can be appropriately supplied to the lower part of the winding unit 92 and the winding operation by the winding unit 92 can be performed.

  Further, the yarn feeding bobbin holding portion 55 can also flip up and discharge the yarn feeding bobbin 21 held by the power of the holding portion drive motor 28. In the following description, the yarn supplying bobbin 21 that is removed from the yarn supplying bobbin holding portion 55 and discharged from the winding unit 92 by this discharging operation may be referred to as a discharging bobbin 96.

  The winding unit 92 includes a traverse drum 24 for rotationally driving the winding bobbin 22 or the package 30. The winding unit 92 includes, in order from the yarn feeding bobbin 21 side, the unwinding assisting device 12, the tension applying device 13, and the yarn traveling path between the yarn feeding bobbin holding portion 55 and the traverse drum 24. The yarn splicing device 14 and the clearer head 49 provided in the clearer (yarn quality measuring device) 15 are arranged.

  The unwinding assisting device 12 lowers the regulating member 40 covering the core pipe of the yarn supplying bobbin 21 in conjunction with the yarn unwinding from the yarn supplying bobbin 21, thereby unwinding the yarn 20 from the yarn supplying bobbin 21. Is to assist. The regulating member 40 comes into contact with the balloon formed on the yarn feeding bobbin 21 by the rotation and centrifugal force of the yarn unwound from the yarn feeding bobbin 21, and the yarn 20 is controlled appropriately by controlling the size of the balloon. To help solve the problem. A sensor (not shown) for detecting the chase portion of the yarn feeding bobbin 21 is provided in the vicinity of the regulating member 40. When this sensor detects the descent of the chase portion, the control is performed so that the restricting member 40 is lowered by, for example, an air cylinder (not shown).

  In the vicinity of the unwinding assisting device 12, a yarn detection sensor 37 capable of detecting the presence or absence of the yarn 20 is provided. The yarn detection sensor 37 transmits a yarn absence signal to the unit controller 50 when the yarn 20 drawn from the yarn feeding bobbin 21 is no longer detected.

  The tension applying device 13 applies a predetermined tension to the traveling yarn 20. As the tension applying device 13, for example, a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth can be used. The movable comb teeth can be rotated by a rotary solenoid so that the comb teeth are in a meshed state or a released state.

  The tension applying device 13 can apply a certain tension to the wound yarn 20 to improve the quality of the package 30. As the tension applying device 13, for example, a disc type can be adopted in addition to the gate type.

  The yarn joining device 14 includes a lower yarn on the yarn feeding bobbin 21 side and a package 30 side when the clearer 15 detects a yarn defect and performs yarn cutting or when yarn breakage occurs during unwinding from the yarn feeding bobbin 21. The upper thread is spliced. As such a yarn splicing device 14, a device using a fluid such as compressed air or a mechanical device can be used.

  The clearer 15 includes a clearer head 49 in which a sensor for detecting the thickness of the yarn 20 is disposed, and an analyzer 52 that processes a yarn thickness signal output from the sensor. The clearer 15 is configured to detect a yarn defect (yarn defect) such as a slab by monitoring a yarn thickness signal from the sensor. This yarn quality information is transmitted to the unit controller 50. Also, a cutter 39 for cutting the yarn 20 immediately when the clearer 15 detects a yarn defect is disposed in the vicinity of the clearer head 49.

  On the lower side and the upper side of the yarn joining device 14, a lower yarn guide pipe 25 that catches and guides the lower yarn on the yarn feeding bobbin 21 side, and an upper yarn guide pipe 26 that catches and guides the upper yarn on the package 30 side. And are provided. A suction port 32 is formed at the tip of the lower thread guide pipe 25, and a suction mouth 34 is provided at the tip of the upper thread guide pipe 26. Appropriate negative pressure sources are connected to the lower thread guide pipe 25 and the upper thread guide pipe 26, respectively, and a suction flow can be applied to the suction port 32 and the suction mouth 34.

  With this configuration, at the time of yarn joining, the lower yarn guide pipe 25 sucks and catches the lower yarn at the catching position, and then rotates upward to guide the lower yarn to the yarn joining device 14. On the other hand, the upper thread guide pipe 26 rotates to the upper capturing position and sucks and captures the upper thread existing on the surface of the package, and then rotates downward to guide the upper thread to the yarn joining device 14. In the yarn joining device 14, the yarn joining operation of the upper yarn and the lower yarn is performed, and excess yarn is appropriately cut. Thereafter, winding is resumed.

  The yarn 20 unwound from the yarn supplying bobbin 21 is wound around a winding bobbin 22 disposed on the downstream side of the yarn joining device 14. The winding bobbin 22 is driven by a rotational drive of a traverse drum 24 disposed to face the winding bobbin 22.

  The traverse drum 24 is for rotating the package 30 and is connected to a drum drive motor 53. A traverse groove is formed on the peripheral surface of the traverse drum 24, and the yarn 20 is wound around the package 30 while being traversed by the traverse groove.

  With the above configuration, when the bobbin is supplied from the magazine type supply device 60 to the yarn supply bobbin holding portion 55, the take-up bobbin 22 is driven, and the yarn 20 unwound from the yarn supply bobbin 21 is taken up. A package 30 having a predetermined length can be formed by winding it around the bobbin 22.

  The unit control unit 50 controls the yarn feeding bobbin 21 to be discharged from the yarn feeding bobbin holding unit 55 in various cases, and there are three main causes as follows.

  That is, the first is a case where all the yarns 20 wound around the yarn supplying bobbin 21 are unwound and become an empty bobbin. In this case, the yarn detection sensor 37 that has detected that the yarn 20 has run out transmits a no-yarn signal to the unit control unit 50, so that the unit control unit 50 recognizes that the yarn 20 of the yarn feeding bobbin 21 has run out. Then, the empty bobbin is discharged from the winding unit 92.

  The second case is a case where the yarn 20 cannot be satisfactorily drawn downstream from the yarn supply bobbin 21 (including the yarn supply bobbin 21 newly supplied from the magazine type supply device 60). That is, when yarn breakage or yarn cut occurs and when the new yarn feeding bobbin 21 is newly supplied to the yarn feeding bobbin holding portion 55, the lower yarn on the yarn feeding bobbin 21 side is caught by the lower yarn guide pipe 25. To the yarn splicing device 14. However, the yarn 20 may not be successfully captured by the lower yarn guide pipe 25 because the yarn 20 cannot be unwound well from the yarn feeding bobbin 21.

  The unit control unit 50 checks the state of the thread detection sensor 37 after rotating the lower thread guide pipe 25 upward. If the thread 20 is not detected (that is, if catching has failed), the lower thread guide The capturing operation of the yarn 20 by the pipe 25 is performed again. If the catching operation of the lower yarn guide pipe 25 is repeated a predetermined number of times and the catching of the yarn 20 fails, the unit controller 50 gives up using the yarn feeding bobbin 21 and feeds the yarn (with the remaining yarn). The bobbin 21 is discharged from the winding unit 92. In many cases, the yarn feeding bobbin 21 discharged in this case can be used without any problem next time if a small amount of remaining yarn is removed and set in the winding unit 92 again.

  The third is a case where yarn defects are frequently detected by the clearer 15. That is, when the yarn defect detection by the clearer 15 exceeds a predetermined frequency, the unit controller 50 considers that there is a problem with the overall yarn quality of the yarn feeding bobbin 21, and the yarn 20 of the yarn feeding bobbin 21 is Supply to the take-up bobbin 22 side is stopped. In this case, the unit controller 50 discharges the yarn supplying bobbin 21 (with the remaining yarn) from the winding unit 92.

  The winding unit 92 includes a unit alarm (bobbin discharge cause notifying unit) 66 that can issue an alarm by light or sound, for example. As a specific configuration of the unit alarm 66, for example, a lamp, a buzzer, and the like are conceivable. In this embodiment, a lamp is used. This unit alarm 66 is electrically connected to the unit controller 50 and is configured to issue an alarm when the winding unit 92 discharges the yarn feeding bobbin 21.

  Here, as described above, various cases can be considered as the cause of the yarn feeding bobbin 21 being discharged. The unit alarm 66 is configured to issue different alarms according to the above causes when issuing an alarm. As a method for generating different alarms, it is conceivable to change the emission color of the lamp or to make the buzzer sound different.

  As shown in FIG. 4, the unit controller 50 of each winding unit 92 is connected to the machine control device 94. When the yarn feeding bobbin 21 is discharged by a certain winding unit 92, the unit controller 50 of the winding unit 92 transmits a discharge signal to the machine base control device 94. The control unit 73 of the machine base control device 94 is configured as a microcomputer including a CPU and a RAM. The control unit 73 counts the discharge signal of the yarn feeding bobbin 21 received from the unit control unit 50 of the winding unit 92, and can store the number of discharged yarn feeding bobbins 21 (as the number of discharged yarns described later). It is configured.

  Next, the bobbin transport conveyor 93 will be described with reference to FIGS. 1, 4, and 5. FIG. 5 is a front view showing the configuration of the bobbin transport conveyor 93. As shown in FIGS. 1 and 5, the bobbin transport conveyor 93 includes a horizontal belt conveyor 81 and an inclined belt conveyor 82. In the following description regarding the bobbin transport conveyor 93, the upstream side and the downstream side in the transport direction of the discharge bobbin 96 by the bobbin transport conveyor 93 may be simply referred to as “upstream side” and “downstream side”.

  As shown in FIG. 1, the horizontal belt conveyor 81 is arrange | positioned at the front side of the winding unit 92, and is arrange | positioned along the direction where the some winding unit 92 is arranged. The yarn feeding bobbin 21 (discharge bobbin 96) discharged from the winding unit 92 falls on the horizontal belt conveyor 81. The inclined belt conveyor 82 is disposed so as to be connected to the downstream end portion of the horizontal belt conveyor 81, and is configured so that the discharge bobbin 96 conveyed by the horizontal belt conveyor 81 can be further conveyed obliquely upward. A bobbin collection box 95 for collecting the discharged bobbin 96 is installed at the downstream end of the inclined belt conveyor 82.

  As shown in FIG. 5, the horizontal belt conveyor 81 includes two pulleys 83, a belt 84, and a tension applying mechanism 89. Similarly, the inclined belt conveyor 82 includes a plurality of pulleys 85 and a belt 86.

  Although not shown in FIG. 5, at least one of the two pulleys 83 and 85 is connected to the conveyor drive motor 88 shown in FIG. The conveyor drive motor 88 is an electric motor, and is connected to the control unit 73 of the machine base control device 94 as shown in FIG. The control unit 73 can control driving and stopping of the conveyor drive motor 88.

  The belts 84 and 86 are driven by the power transmitted from the pulleys 83 and 85, and can convey the discharge bobbin 96 on the belt. The tension applying mechanism 89 includes a tension pulley for applying tension to the belt 84. Further, a horizontal cross section (not shown) is attached to the belt 86 of the inclined belt conveyor 82 at a predetermined pitch, so that the discharge bobbin 96 is not easily rolled off.

  As shown in FIG. 1, the horizontal belt conveyor 81 is provided with a conveyor alarm (conveyor drive notification unit) 87 on its side surface. The conveyor alarm 87 is configured to be able to issue an alarm by light or sound, for example. As a specific configuration of the conveyor alarm 87, for example, a lamp, a buzzer, and the like are conceivable. In this embodiment, a lamp is used. Further, as shown in FIG. 4, the conveyor alarm 87 is connected to the machine base control device 94, and when the machine base control device 94 starts to drive the conveyor drive motor 88 (specifically, the start of driving). It is configured to issue an alarm (before a predetermined time).

  The discharge bobbin 96 on the horizontal belt conveyor 81 is conveyed by the machine base controller 94 driving the conveyor drive motor 88. When the discharge bobbin 96 is conveyed to the end of the horizontal belt conveyor 81, it is conveyed obliquely upward by the inclined belt conveyor 82. Then, the discharge bobbin 96 finally falls into the bobbin collection box 95 from the downstream end of the inclined belt conveyor 82 and is collected.

  As described above, the discharge bobbin 96 accommodated in the bobbin collection box 95 includes those with a remaining yarn. Further, the amount of remaining yarn in the discharge bobbin 96 is large, and there is a case where waste is increased if all the remaining yarn is discarded and a new fine spinning yarn is rewound. Therefore, in the configuration of the present embodiment, the operator can find out from the bobbin recovery box 95 a re-supplyable discharge bobbin 96 with a remaining yarn and supply it to the magazine type supply device 60 of the winding unit 92. ing. However, as will be described later, the operator can directly pick up the discharge bobbin 96 on the horizontal belt conveyor 81 and supply it again to the winding unit 92.

  Next, control for intermittently conveying the bobbin conveying conveyor 93 in the above configuration will be described.

  First, various settings are made before starting the winding of the yarn. Specifically, the operator sets a yarn winding condition to be applied to the winding unit 92 by displaying a yarn winding condition setting menu on the display unit 72 of the machine base controller 94 and inputting a numerical value with the input key 71. . Examples of the yarn winding condition to be set include items relating to the type of yarn to be wound, the winding speed, the yarn count, the winding tension, the package weight, and the yarn defect.

  Further, the operator inputs the conveyor drive threshold value with the input key 71 and sets it in the machine base control device 94. The conveyor drive threshold is a threshold related to the total number of yarn feeding bobbins 21 discharged from the respective winding units 92 (hereinafter simply referred to as “the number of discharged yarns”). When the number of discharged sheets becomes equal to or greater than the conveyor drive threshold, the machine base control device 94 drives the conveyor drive motor 88 at a predetermined speed and starts conveying the discharged bobbins 96 by the bobbin conveying conveyor 93.

  That is, the conveyor drive threshold means the upper limit number of the discharge bobbins 96 stored on the horizontal belt conveyor 81 in a state where the bobbin transport conveyor 93 is stopped. Accordingly, the conveyor drive threshold can be set as appropriate so that the discharge bobbin 96 overflows on the horizontal belt conveyor 81 and does not cause a discharge error from the winding unit 92. The set conveyor drive threshold is stored in the control unit 73 of the machine base control device 94.

  Thereafter, winding of the yarn is started in each winding unit 92. Immediately after each winding unit 92 starts winding the yarn, the bobbin transport conveyor 93 is stopped. Each winding unit 92 forms the package 30 while discharging the yarn feeding bobbin 21 due to the various reasons described above.

  The control unit 73 of the machine base control device 94 is configured to store a cumulative value of the number (discharged number) of yarn feeding bobbins 21 discharged by all the winding units 92. The number of discharges is zero at the beginning of the operation of the automatic winder 10, but increases one by one each time the yarn feeding bobbin 21 is discharged and a discharge signal is input from the winding unit 92.

  The machine base control device 94 performs control so that the stopped state of the bobbin transport conveyor 93 is continued until the number of discharged sheets becomes equal to or greater than the conveyor drive threshold. Accordingly, a certain number of discharge bobbins 96 are accumulated on the horizontal belt conveyor 81.

  When the horizontal belt conveyor 81 is stopped as described above, the operator can easily pick up the discharge bobbin 96 discharged to the horizontal belt conveyor 81 by hand. The operator picks the discharge bobbin 96 with the remaining yarn and picks it up by hand, and slightly unwinds the remaining yarn from the discharge bobbin 96. Then, for those which are determined to be re-suppliable to the take-up unit 92, the discharge bobbin 96 can be set on the magazine type supply device 60 of the take-up unit 92 on the spot.

  When the number of discharged sheets exceeds the conveyor drive threshold, the machine base control device 94 resets the total number of discharged sheets to zero and then generates an alarm by the conveyor alarm 87 (that is, causes the lamp to emit light). Call attention. Thereafter, the machine base control device 94 starts conveying the discharge bobbin 96 by the bobbin conveying conveyor 93 by driving the conveyor driving motor 88.

  FIG. 6 is a perspective view showing a state immediately after the bobbin transport conveyor 93 is driven. In FIG. 6, a discharge bobbin 96 (hereinafter referred to as the most upstream discharge bobbin) discharged from the winding unit 92 located on the most upstream side of the horizontal belt conveyor 81 is shown in particular surrounded by a chain line. ing.

  In the present embodiment, the discharge bobbin 96 is transported by the bobbin transport conveyor 93 at a constant speed. FIG. 7 shows a state in which the conveyance by the bobbin conveyance conveyor 93 proceeds from the state of FIG. In the state of FIG. 7, the most upstream discharge bobbin 96 described above is located near the center of the horizontal belt conveyor 81.

  As shown in FIG. 7, on the further upstream side of the most upstream discharge bobbin 96, the discharge bobbin 96 discharged immediately after the bobbin transfer conveyor 93 starts driving is being transferred. That is, since the driving of the bobbin transport conveyor 93 is performed independently of the winding of the yarn 20 by the winding unit 92, the winding unit 92 may discharge the yarn feeding bobbin 21 after the driving of the bobbin transport conveyor 93 is started. possible. The discharge of the yarn feeding bobbin 21 during the driving of the conveyor may be configured such that the control unit 73 of the machine base control device 94 counts as the number of discharges described above, or may not be counted.

  The machine base control device 94 controls the bobbin transport conveyor 93 to continue driving for a certain period of time and then stop. By driving the bobbin conveyor 93, all the discharge bobbins 96 (including the most upstream discharge bobbin 96 described above) discharged onto the horizontal belt conveyor 81 when the conveyor stops are dropped into the bobbin collection box 95. . FIG. 8 shows a state immediately before the most upstream discharge bobbin 96 falls into the bobbin collection box 95. When the bobbin conveyance conveyor 93 is stopped, the machine base control device 94 continues to count the number of discharges.

  The machine base control device 94 realizes automatic intermittent driving of the bobbin transport conveyor 93 by repeating the above control. As a result, it is possible to normally stop the bobbin conveyor 93 and store the discharged bobbins 96 on the horizontal belt conveyor 81 to some extent, and then transport them together in the bobbin collection box 95, which effectively saves power. Has been realized.

  In this embodiment, as described above, the operator easily collects the discharge bobbin 96 (which can be re-supplied) from the horizontal belt conveyor 81 while the bobbin transport conveyor 93 is stopped, and winds up the discharge bobbin 96. The unit 92 can be set on the spot. Even if a large number of discharge bobbins 96 are discharged from the winding unit 92, the discharge bobbins 96 are appropriately spread on the horizontal belt conveyor 81, so that the individual discharge bobbins 96 can be easily confirmed visually. . Therefore, as compared with the case where the discharged bobbin 96 once collected in the bobbin collection box 95 is taken out and sorted, the work of visually sorting the bobbins with remaining yarn that can be re-supplied to the winding unit 92 is easier.

  Moreover, when the discharge bobbin 96 is discharged in each winding unit 92, the cause is notified to the operator by a unit alarm 66. Therefore, for example, the operator can easily grasp from which winding unit 92 the yarn supplying bobbin 21 with the remaining yarn is discharged. Thereby, the supply operation | work on the spot to the winding unit 92 can be performed efficiently about the yarn supplying bobbin 21 with a remaining yarn.

  As described above, the automatic winder 10 according to the present embodiment includes the plurality of winding units 92, the bobbin transport conveyor 93, and the machine base control device 94. The winding unit 92 winds the yarn drawn from the yarn supplying bobbin 21 around the package 30. The bobbin transport conveyor 93 transports the discharge bobbin 96, which is the yarn feeding bobbin 21 discharged by the winding unit 92, for collection. The machine control device 94 controls the bobbin conveyor 93 to be driven intermittently.

  Accordingly, the bobbin transport conveyor 93 is stopped, and the discharge bobbin 96 is stored on the horizontal belt conveyor 81 to some extent and then transported, whereby the automatic winder 10 having excellent power saving can be provided. In addition, since the driving and stopping of the bobbin transport conveyor 93 are automatically switched by the control of the machine base control device 94, the operator does not need to operate the switch of the bobbin transport conveyor 93. Therefore, it is possible to realize power saving without reducing work efficiency. Further, when the bobbin transport conveyor 93 is stopped, the operator easily picks up and collects the discharge bobbin 96 with the remaining yarn from the horizontal belt conveyor 81 and re-supposes that it is possible to re-supply on the spot. It can be set in the magazine type supply device 60 of the winding unit 92. Therefore, an operator's burden regarding collection of the discharge bobbin 96 can be reduced.

  Further, in the automatic winder 10 of the present embodiment, the machine base control device 94 determines that the bobbin when the total number (discharge number) of the discharge bobbins 96 discharged from the plurality of winding units 92 reaches the conveyor drive threshold. Driving of the conveyer 93 is started.

  Thereby, even if the frequency with which the yarn feeding bobbin 21 is actually discharged from the winding unit 92 varies, the driving timing of the bobbin transport conveyor 93 can be flexibly changed accordingly. Accordingly, the discharge bobbin 96 can be efficiently recovered in the bobbin recovery box 95 while preventing the discharge bobbin 96 from overflowing from the bobbin transport conveyor 93.

  Further, the automatic winder 10 of the present embodiment includes a conveyor alarm 87 that notifies the start of driving of the bobbin transport conveyor 93 in advance.

  Thereby, when the conveyor alarm 87 is not operating, the operator can confirm that the bobbin transport conveyor 93 is currently in a stopped state and that the driving will not be started for a while. Therefore, the recovery of the discharge bobbin 96 by the operator and the resupply operation to the winding unit 92 can be performed efficiently.

  Further, in the automatic winder 10 of this embodiment, each of the winding units 92 includes a magazine type supply device 60 for supplying the yarn feeding bobbin 21.

  Thereby, the winding unit 92 can store a certain number of yarn feeding bobbins 21 by the magazine type supply device 60. Therefore, the operator can supply the collected discharge bobbin 96 to the winding unit 92 almost always.

  Further, in the automatic winder 10 of the present embodiment, each winding unit 92 includes a unit alarm 66 that notifies the cause of the discharge bobbin 96 being discharged.

  Thus, the operator can easily know what trouble has occurred in which winding unit 92. For this reason, it is possible to identify the winding unit 92 that is likely to be defective. Further, since the unit alarm 66 indicates that the discharge bobbin 96 with the remaining yarn has been discharged, the operator quickly finds the discharge bobbin 96 with the remaining yarn, determines whether or not the resupply to the winding unit 92 is possible, and actually Can be efficiently performed.

  Next, a modification of the above embodiment will be described. Note that this modification is different from the above-described embodiment only in the control of the bobbin conveyor, and the other parts are the same as those in the above-described embodiment (FIGS. 1 to 5). The same code may be used.

  That is, in this modified example, when the bobbin transport conveyor 93 is intermittently driven, the bobbin transport conveyor 93 is driven and stopped every predetermined time instead of using the conveyor drive threshold value. That is, for example, the control for driving the bobbin conveyor 93 for 15 seconds after being stopped for 120 seconds is repeated.

  Further, in the present modification, the control unit 73 of the machine base control device 94 can control not only switching of driving and stopping of the conveyor driving motor 88 but also its driving speed. And the control part 73 drives the bobbin conveyance conveyor 93 with the conveyance speed according to the kind (specifically thickness of a thread | yarn) of a yarn feeding bobbin.

  That is, the yarn feeding bobbin 21 wound with a thick yarn has a shorter winding length than a case where a thin yarn is wound, and the yarn runs out in a short time. The pace of discharge is fast. Therefore, in the case of a thick yarn, the control unit 73 calculates in advance with an appropriate calculation formula so as to increase the conveying speed of the bobbin conveying conveyor 93, and drives the bobbin conveying conveyor 93 at the obtained speed. Therefore, in the case of a thick thread, the average transport distance per unit time of the bobbin transport conveyor 93 is increased.

  Alternatively, instead of or in addition to the control for changing the conveying speed of the bobbin conveying conveyor 93, the ratio of the time for driving the bobbin conveying conveyor 93 may be changed according to the thickness of the yarn. For example, the bobbin conveyor 93 is controlled so as to repeat the stop for 120 seconds and the drive for 15 seconds in the case of the thin yarn supply bobbin 21, and the stop for 120 seconds and the drive for 30 seconds in the case of a thick yarn. It is conceivable to control as follows. Also by this, the average conveyance distance per unit time of the bobbin conveyance conveyor 93 can be changed according to the thickness of the yarn.

  Furthermore, the cumulative number of yarn feeding bobbins 21 discharged from the winding unit 92 in the latest 180 seconds, for example, is calculated, and the conveyance speed and driving time ratio of the bobbin conveyance conveyor 93 are dynamically changed according to the result. You may control so that it may. In this case, the discharge bobbin 96 can be transported according to the actual operation status of the winding unit 92.

  As described above, in the automatic winder 10 according to the present modification, the machine base control device 94 determines the average transport distance per unit time of the bobbin transport conveyor 93 (that is, the transport speed or the speed) according to the type of the yarn feeding bobbin 21. The ratio of driving time) is changed.

  That is, when the type of the yarn feeding bobbin 21 is different, the time interval at which the yarn feeding bobbin 21 is discharged varies depending on the difference in the winding length of the yarn. In this regard, in the above-described configuration, the discharge bobbin 96 can be efficiently collected according to the characteristics of the yarn feeding bobbin 21, so that a configuration excellent in power saving can be achieved.

  Further, in the automatic winder 10 of this modification, the machine base control device 94 performs the average conveyance per unit time of the bobbin conveyance conveyor 93 according to the total number of the discharge bobbins 96 discharged from the plurality of winding units 92. The distance (the conveyance speed or the ratio of the driving time) can be changed.

  That is, the time interval at which the discharge bobbin 96 is discharged varies due to the discharge bobbin 96 with the remaining yarn being discharged. In this regard, in the above configuration, the discharge bobbin 96 can be transported to the bobbin collection box 95 in consideration of the variation in the time interval. Therefore, the recovery of the discharge bobbin 96 can be made more efficient, and a configuration excellent in power saving can be achieved.

  Further, in the automatic winder 10 of the present modification, the machine base control device 94 drives the bobbin transport conveyor 93 every predetermined time.

  Thereby, the intermittent drive of the bobbin conveyance conveyor 93 is realizable, without performing complicated control. Therefore, the configuration of the machine base control device 94 can be simplified.

  Further, in the automatic winder 10 of this modification, the machine base control device 94 can change the conveyance speed of the bobbin conveyance conveyor 93.

  As a result, the discharge bobbin 96 can be transported at an appropriate transport speed according to the situation, so that the discharge bobbin 96 can be efficiently collected.

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

  In the above-described embodiment and the modified example, the bobbin conveyor 93 is transported once per driving distance, and all of the yarn feeding bobbins 21 (discharge bobbins 96) discharged at that time are recovered in the bobbin recovery box 95 at a time. It may be a sufficient distance so that it is possible, or may be a shorter distance. However, it is preferable to collect all of the discharge bobbins 96 by one driving because a large amount of the discharge bobbins 96 can be prevented from being stored on the downstream side of the horizontal belt conveyor 81.

  The unit alarm 66 is connected to a device that detects various abnormalities (such as an error in the yarn joining operation by the yarn joining device 14 and an abnormality in the power supply) in addition to the discharge of the yarn feeding bobbin 21 described above. It can also be configured to issue an alarm even when detected. In this case, the unit alarm 66 may be configured to display the content of the abnormality with a numerical value or the like so that the operator can easily grasp the content of the event that has occurred.

  When the bobbin transport conveyor 93 starts driving, the conveyor alarm 87 provided in the bobbin transport conveyor 93 is configured to issue an alarm. However, instead of or in combination with this, the machine base control device 94 may issue an alarm when the bobbin transport conveyor 93 starts to be driven.

  In the above modification, the thickness (count) of the yarn is used as the type of the yarn feeding bobbin 21, but the size of the yarn feeding bobbin 21 or the type of yarn can be used instead.

  In the above modification, the conveyor conveyance speed and the drive time ratio are changed according to the type of the yarn feeding bobbin 21. However, it can replace with this and can also be set as the structure calculated | required from other yarn winding conditions (for example, winding speed etc.).

  The above-described embodiments and modifications are not limited to automatic winders, and can be widely applied to a yarn winding device configured to unwind and wind a yarn of a yarn feeding bobbin.

10 Automatic winder (yarn winding device)
21 Yarn feeding bobbin 50 Unit control unit 60 Magazine type supply device 66 Unit alarm (bobbin discharge cause notification unit)
87 Conveyor alarm (Conveyor drive notification unit)
88 Conveyor drive motor 92 Winding unit 93 Bobbin conveyor 94 Machine control device (control device)
96 Discharge bobbin

Claims (9)

A plurality of winding units for winding the yarn drawn from the yarn feeding bobbin into a package;
A bobbin transport conveyor for transporting a discharge bobbin, which is a yarn supply bobbin discharged by the winding unit, for collection;
A control device for controlling the bobbin transport conveyor to intermittently drive;
A yarn winding device comprising: The yarn winding device according to claim 1,
The said control apparatus changes the average conveyance distance per unit time of the said bobbin conveyance conveyor according to the kind of said yarn supply bobbin, The yarn winding apparatus characterized by the above-mentioned. The yarn winding device according to claim 1 or 2,
The control device changes an average transport distance per unit time of the bobbin transport conveyor according to the total number of discharged bobbins discharged from a plurality of winding units. A yarn winding device according to any one of claims 1 to 3,
The control device starts driving the bobbin transport conveyor when the total number of discharged bobbins discharged from a plurality of winding units reaches a predetermined number. A yarn winding device according to any one of claims 1 to 3,
The yarn winding device, wherein the control device drives the bobbin conveyor every predetermined time. A yarn winding device according to any one of claims 1 to 5,
The yarn winding device, wherein the control device is capable of changing a conveying speed of the bobbin conveying conveyor. The yarn winding device according to any one of claims 1 to 6,
The yarn winding device includes a conveyor drive notification unit that notifies in advance of the start of driving of the bobbin transport conveyor. A yarn winding device according to any one of claims 1 to 7,
Each of the winding units includes a magazine type supply device for supplying the yarn supply bobbin. A yarn winding device according to any one of claims 1 to 8,
Each of the winding units includes a bobbin discharge cause notifying unit that notifies the cause of the discharge bobbin being discharged.

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