JP2009227413A - Yarn winder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yarn winder having excellent energy efficiency, enabling smooth yarn splicing by a yarn splicer, and capable of preventing a traversing yarn guide from being damaged. <P>SOLUTION: The winder unit 10 of an automatic winder comprises a yarn supply part 24, a package drive motor 41, a traverse guide 11, a traverse guide drive motor 45, and a traverse control part 46. The package drive motor 41 rotates a winding bobbin 22 to wind up a yarn 20 from the a yarn supply bobbin 21. The traverse guide 11 is installed between the yarn supply part 24 and the winding bobbin 22, and traverses the yarn 20 when the yarn 20 is wound on the winding bobbin 22. The traverse guide drive motor 45 drives the traverse guide 11 by an electromagnetic force so as to reciprocate. The traverse control part 46 is so controlled by an excitation control part 63 that when, for example, the winding of the yarn 20 is stopped due to the occurrence of abnormality, the excitation of the traverse guide drive motor 45 is turned off until the winding is restarted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a yarn winding machine that winds a yarn around a winding bobbin while traversing the yarn with a traverse yarn guide.

  This type of yarn winding machine is disclosed in Patent Document 1, for example. The automatic winder disclosed in Patent Document 1 employs a traverse device having a traverse guide that reciprocates in the direction of the rotation axis of a winding bobbin by engaging a yarn at the tip of a swing arm. The automatic winder also includes a yarn joining device for connecting the yarn start end portion of the yarn supply portion and the yarn end portion of the yarn layer formed on the winding bobbin, and the yarn start end portion of the yarn supply portion. Lower thread catching and guiding means for guiding to the joining device, and upper thread catching and guiding means for catching and guiding the yarn end portion of the yarn layer to the yarn joining device.

  In the traverse device provided in the automatic winder of Patent Document 1, the traverse guide is attached to an arm member or a timing belt, and is configured to reciprocate by a traverse drive motor. The traverse guide is controlled to stop at a position avoiding the center of the traverse stroke, for example, at the end of the traverse stroke, during the yarn joining operation by the yarn joining device.

Patent Document 1 enables the winding of various yarns as compared with a so-called traverse drum type traverse device, and realizes a smooth yarn joining operation by the yarn joining device by adopting the above-described configuration. Assume that damage to the traverse guide can be avoided.
JP 2007-153554 A

  However, in the said patent document 1, it has the structure controlled so that a traverse guide is hold | maintained at the end part of a traverse stroke at the time of a yarn splicing operation. Therefore, when the yarn is caught by the upper yarn catching and guiding means for the yarn joining operation and guided to the yarn joining device, if the yarn is engaged with the traverse guide, the traverse guide is excessively passed through the yarn. There was a risk that the traverse guide would be damaged due to excessive tensile force. Further, when the upper yarn catching and guiding means guides the yarn to the yarn joining device, there is a possibility that the yarn is strongly rubbed with the traverse guide and breaks, causing a failure in the yarn joining operation and reducing the production efficiency.

  Moreover, in patent document 1, it is the structure which consumes energy in order to hold | maintain a traverse guide in the extreme end part of a traverse stroke at the time of the yarn splicing operation which is not performing winding work. For this reason, the power consumption of the traverse drive motor is increased, the energy efficiency is lowered, and the running cost is increased.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to realize a smooth yarn joining operation by the yarn joining device, to avoid the traverse yarn guide being damaged, and to take up the yarn with excellent energy efficiency. Is to provide a machine.

Means and effects for solving the problems

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

  According to a first aspect of the present invention, a yarn winding machine having the following configuration is provided. That is, the yarn winding machine includes a machine base and a plurality of yarn winding units provided in parallel on the machine base. Each of the yarn winding units includes a yarn supplying unit, a winding bobbin driving unit, a traversing yarn guide, a traversing yarn guide driving unit, and a control unit. The winding bobbin driving unit rotationally drives the winding bobbin around which the yarn from the yarn supplying unit is wound. The traverse yarn guide is provided between the yarn supplying section and the winding bobbin, and engages with the yarn when winding the yarn around the winding bobbin to traverse the yarn. The traverse yarn guide driving unit drives the traverse yarn guide to reciprocate by electromagnetic force. The control unit is configured to turn off the excitation of the traverse yarn guide driving unit at least during a period from when the machine base is turned on to when winding of the yarn is started. Control the guide drive.

  With this configuration, the energy efficiency of the entire yarn winding machine can be improved by actively turning off the excitation in a time immediately after the power is turned on, which does not require excitation of the traverse yarn guide driving unit.

  According to the 2nd viewpoint of this invention, the yarn winding machine of the following structures is provided. That is, the yarn winding machine includes a yarn supplying unit, a winding bobbin driving unit, a traversing yarn guide, a traversing yarn guide driving unit, and a control unit. The winding bobbin driving unit rotationally drives the winding bobbin around which the yarn from the yarn supplying unit is wound. The traverse yarn guide is provided between the yarn supplying section and the winding bobbin, and engages with the yarn when winding the yarn around the winding bobbin to traverse the yarn. The traverse yarn guide driving unit drives the traverse yarn guide to reciprocate by electromagnetic force. When the winding of the yarn is stopped due to the occurrence of an abnormality, the control unit sets the traverse yarn guide driving unit to turn off the excitation of the traverse yarn guide driving unit until the winding of the yarn is resumed. Control.

  With this configuration, the energy efficiency of the entire yarn winding machine can be improved by actively turning off the excitation at the time of an abnormal stop where the excitation of the traverse yarn guide driving unit is unnecessary.

  According to the 3rd viewpoint of this invention, the yarn winding machine of the following structures is provided. That is, the yarn winding machine includes a yarn supplying unit, a winding bobbin driving unit, a traversing yarn guide, a traversing yarn guide driving unit, a forced stop switch, and a control unit. The winding bobbin driving unit rotationally drives the winding bobbin around which the yarn from the yarn supplying unit is wound. The traverse yarn guide is provided between the yarn supplying section and the winding bobbin, and engages with the yarn when winding the yarn around the winding bobbin to traverse the yarn. The traverse yarn guide driving unit drives the traverse yarn guide to reciprocate by electromagnetic force. The forced stop switch is configured to be able to forcibly stop the winding of the yarn when operated. The control unit controls the traverse yarn guide driving unit to turn off the excitation of the traverse yarn guide driving unit when the winding of the yarn is stopped by the forced stop switch.

  With this configuration, the energy efficiency of the entire yarn winding machine can be improved by positively turning off the excitation at the time of forced stop where the excitation of the traverse yarn guide driving unit is unnecessary.

  According to the 4th viewpoint of this invention, the yarn winding machine of the following structures is provided. That is, the yarn winding machine includes a yarn supplying unit, a winding bobbin driving unit, a traversing yarn guide, a traversing yarn guide driving unit, a detection unit, and a control unit. The winding bobbin driving unit rotationally drives the winding bobbin around which the yarn from the yarn supplying unit is wound. The traverse yarn guide is provided between the yarn supplying section and the winding bobbin, and engages with the yarn when winding the yarn around the winding bobbin to traverse the yarn. The traverse yarn guide driving unit drives the traverse yarn guide to reciprocate by electromagnetic force. The detection unit is configured to detect the traveling of the yarn. The control unit controls the traverse yarn guide driving unit to turn off the excitation of the traverse yarn guide driving unit when the detection unit does not detect the running of the yarn.

  With this configuration, the yarn winding machine is configured to detect a winding stop state in which the excitation of the traverse yarn guide driving unit is unnecessary and to automatically turn off the excitation of the traverse yarn guide driving unit. Overall energy efficiency can be improved.

  The yarn winding machine preferably has the following configuration. That is, the yarn winding machine further includes a yarn joining device. This yarn splicing device splices the yarn end on the yarn supplying portion side and the yarn end of a yarn layer formed by winding the yarn around the winding bobbin. The control unit controls the traverse yarn guide driving unit to turn on the excitation of the traverse yarn guide driving unit after the yarn joining operation of the yarn joining device is completed.

  With this configuration, since the excitation of the traverse yarn guide driving unit is off during the yarn joining operation of the yarn joining device, the yarn engaged with the traverse yarn guide is pulled toward the yarn joining device side. However, the traverse yarn guide can move following the guide. Therefore, it is possible to prevent the yarn from being rubbed strongly and causing a yarn joining error, and to prevent the traverse yarn guide from being damaged due to overload.

  Next, embodiments of the invention will be described with reference to the drawings. FIG. 1 is a schematic diagram and a block diagram showing a schematic configuration of a winder unit 10 included in an automatic winder according to the present embodiment.

  A winder unit (yarn winding unit) 10 shown in FIG. 1 winds a yarn 20 unwound from a yarn supplying bobbin 21 around a winding bobbin 22 while traversing it to form a package 30 having a predetermined length and a predetermined shape. . In addition, the winder unit 10 of this embodiment can form packages of various shapes such as a cone shape and a tapered shape in addition to the cheese-shaped package shown in FIG.

  The automatic winder (yarn winding machine) of this embodiment includes a machine base and a plurality of winder units 10 arranged side by side on the machine base. Further, the automatic winder is arranged at one end in the direction in which the winder units 10 are arranged in the machine base, and in the other end in the direction in which the winder units 10 are arranged. And an abbreviated blower box. A machine power switch 81 is provided at an appropriate position of the machine, so that the power of the machine can be turned on and off.

  Each winder unit 10 includes a winding unit main body 16 and a unit control unit 50.

  The unit controller 50 includes, for example, a CPU, a RAM, a ROM, and an I / O port. A program for controlling each component of the winding unit main body 16 is recorded in the ROM.

  Each configuration (described later) included in the winding unit body 16 is connected to the I / O port so that control information can be communicated with each other. Each winder unit 10 is provided with a unit switch (forced stop switch) 71, and the unit switch 71 can be forcibly stopped by operating the unit switch 71. The unit switch 71 is electrically connected to the unit controller 50 and configured to transmit a forced stop signal to the unit controller 50.

  The winding unit main body 16 includes a balloon controller 12, a tension applying device 13, and a splicer device (yarn splicing device) in order from the yarn feeding bobbin 21 side in the yarn traveling path between the yarn feeding unit 24 and the contact roller 29. Device) 14 and a clearer 15 are arranged.

  A yarn supplying section 24 for supplying yarn to the winding bobbin 22 side is provided at the lower portion of the winding unit main body 16. The yarn supplying section 24 is configured to hold the yarn supplying bobbin 21 conveyed by a bobbin conveying system (not shown) at a predetermined position. Instead of the configuration in which the yarn feeding bobbin 21 is supplied by the bobbin conveying system, the yarn feeding bobbin 21 may be supplied from a magazine type supply system provided in the winding unit main body 16.

  The balloon controller 12 includes a restricting member 40 that can move up and down. The restricting member 40 is configured to be able to cover the core tube of the yarn supplying bobbin 21 set in the yarn supplying unit 24. The balloon controller 12 assists the unwinding of the yarn from the yarn supplying bobbin 21 by lowering the regulating member 40 in conjunction with the unwinding of the yarn from the yarn supplying bobbin 21. The regulating member 40 contacts a balloon formed on the upper portion of the yarn feeding bobbin 21 by rotation and centrifugal force of the yarn unwound from the yarn feeding bobbin 21, and applies an appropriate tension to the balloon to thereby reduce the yarn. Assist with unraveling. An unillustrated sensor for detecting the chase portion of the yarn feeding bobbin 21 is provided in the vicinity of the restricting member 40. When this sensor detects the descent of the chase portion, the restricting member 40 is followed accordingly. For example, it can be lowered by an air cylinder (not shown).

  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 37 are arranged with respect to fixed comb teeth 36 can be used. The movable comb teeth 37 can be rotated by, for example, a solenoid 38 configured in a rotary manner 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. In addition to the gate type, for example, a disk type can be adopted as the tension applying device 13.

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

  The clearer 15 includes a clearer head 49 in which a sensor (not shown) for detecting the thickness of the yarn 20 is disposed, and an analyzer 52 that processes a yarn thickness signal from the sensor. The clearer 15 is configured to detect a yarn defect such as a slab by monitoring a yarn thickness signal from the sensor. The clearer 15 can also function as a sensor that detects the traveling speed of the yarn 20 and a sensor that simply detects the presence or absence of the yarn 20. In the vicinity of the clearer head 49, a cutter 39 for cutting the yarn 20 immediately when the clearer 15 detects a yarn defect is provided.

  On the lower side and the upper side of the splicer device 14, the lower yarn guide pipe 25 that catches the lower yarn on the yarn feeding bobbin 21 and guides it to the splicer device 14, and the upper yarn on the package 30 side is caught. And an upper thread guide pipe 26 for guiding the upper thread. Further, the lower thread guide pipe 25 and the upper thread guide pipe 26 are configured to be rotatable about shafts 33 and 35, respectively. 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. The blower box is connected to the lower thread guide pipe 25 and the upper thread guide pipe 26 via appropriate pipes, and a suction flow is generated in the suction port 32 and the suction mouth 34 so that the upper thread and the lower thread are controlled. The yarn end can be sucked and captured.

  The winding unit main body 16 includes a cradle 23 that removably supports a winding bobbin (paper tube, core tube) 22, an arm-type traverse device 27 for traversing the yarn 20, and a periphery of the winding bobbin 22. And a contact roller 29 that can be driven and rotated in contact with the surface or the peripheral surface of the package 30.

  The cradle 23 is configured to be rotatable about a rotation shaft 48, and the increase in the yarn layer diameter associated with the winding of the yarn 20 around the winding bobbin 22 can be absorbed by the rotation of the cradle 23. It is configured as follows.

  A package drive motor 41 is attached to a portion of the cradle 23 that sandwiches the take-up bobbin 22, and the take-up bobbin 22 is rotationally driven by the package drive motor 41 to take up the yarn 20. . When the winding bobbin 22 is supported by the cradle 23, the motor shaft of the package driving motor 41 is connected to the winding bobbin 22 so as not to be relatively rotatable (so-called direct drive system). The operation of the package drive motor 41 is controlled by a package drive control unit 42, and the package drive control unit 42 is configured to control the operation / stop of the package drive motor 41 in response to an operation signal from the unit control unit 50. is doing.

  A package rotation sensor 43 is attached to the cradle 23. The package rotation sensor 43 rotates the take-up bobbin 22 attached to the cradle 23 (the rotation of the yarn layer 31 formed on the take-up bobbin 22). ) Is detected. The rotation detection signal of the winding bobbin 22 is transmitted from the package rotation sensor 43 to the package drive control unit 42 and the unit control unit 50. Further, the rotation detection signal is input to a traverse control unit (control unit) 46 described later.

  An angle sensor 44 for detecting the angle (rotation angle) of the cradle 23 is attached to the rotation shaft 48. The angle sensor 44 is composed of, for example, a rotary encoder, and is configured to transmit an angle signal corresponding to the angle of the cradle 23 to the unit controller 50. Since the angle of the cradle 23 changes as the package 30 gets thicker, the diameter of the yarn layer of the package 30 can be detected by detecting the rotation angle of the cradle 23 by the angle sensor 44. Thereby, the traverse device 27 is controlled according to the package yarn layer diameter, whereby the yarn can be traversed appropriately. The signal acquired by the angle sensor 44 is transmitted to the unit controller 50, and the unit controller 50 calculates the diameter of the yarn layer 31 based on the received signal. The calculated diameter of the yarn layer 31 is transmitted from the unit controller 50 to the package drive controller 42.

  The traverse device 27 includes an elongated arm member 28 configured to be rotatable around a support shaft, a hook-shaped traverse guide (traverse yarn guide) 11 formed at the tip of the arm member 28, and an arm member. A traverse guide drive motor (twisted yarn guide drive unit) 45 for driving 28. The traverse guide drive motor 45 is constituted by a servo motor, and is configured to traverse the yarn 20 by causing the arm member 28 to reciprocate as shown by arrows in FIG.

  The operation of the traverse guide drive motor 45 is controlled by a traverse control unit 46, and the traverse control unit 46 is configured to control the operation / stop of the traverse guide drive motor 45 in response to a signal from the unit control unit 50. ing.

  The traverse device 27 is provided with a traverse guide position sensor 47 composed of a rotary encoder, detects the turning position of the arm member 28 (and consequently the position of the traverse guide 11), and sends a position signal to the traverse control unit 46. It is configured to be able to send.

  In the present embodiment, the traverse guide 11 is made of a ceramic having excellent low friction properties, and thereby the yarn 20 can be traversed smoothly and the quality of the package 30 can be improved. However, since the ceramic traverse guide 11 is vulnerable to impact, it must be handled with care so that a strong load is not momentarily applied to the traverse guide 11.

  The traverse device 27 includes stoppers 65 disposed in the vicinity of both ends of the reciprocating rotation stroke of the arm member 28. The stoppers 65 are arranged on both sides of the rotation range of the arm member 28 and are provided so as to be able to contact the side portion of the arm member 28. With this configuration, when the arm member 28 tries to rotate beyond the normal stroke range for some reason, such as when the traverse guide drive motor 45 fails, the stopper 65 comes into contact with the arm member 28 and stops it. It is configured to prevent it.

  Further, the stopper 65 serves as a reference member for determining the position of a reference point where the traverse guide 11 traverses the yarn 20. That is, in this embodiment, the traverse guide position sensor 47 acquires the position where the arm member 28 contacts the stopper 65 on one side and the position where the arm member 28 contacts the stopper 65 on the other side. The point is set as the reference point for traversing.

  In the present embodiment, the traverse stroke is determined with this reference point as the center, and various control information is exchanged with the reference point as the control origin. Therefore, the setting of the reference point also serves to determine the position of the control origin. In this sense, the reference point setting operation is sometimes referred to as “origin search” in the following description.

  The traverse control unit 46 includes an origin calculation unit 61, an origin storage unit 62, and an excitation control unit 63. The origin calculation unit 61 calculates the control origin of the traverse guide 11 from the detection value of the traverse guide position sensor 47 when the arm member 28 is in contact with each of the two stoppers 65 in the origin finding operation. The origin storage unit 62 stores the control origin calculated by the origin calculation unit 61 in an appropriate memory. The excitation control unit 63 is configured to control excitation and stop of excitation in the traverse guide drive motor 45 by sending a signal to the traverse guide drive motor 45.

  In this embodiment, as shown in FIG. 1, the package drive motor 41 and the traverse guide drive motor 45 are provided separately, and the winding bobbin 22 and the traverse guide 11 are driven (controlled) separately and independently. It is comprised so that. Thereby, the yarn 20 can be wound around the winding bobbin 22 while flexibly changing and controlling the traversing of the yarn 20.

  Next, control of the traverse guide 11 in the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing the control when the automatic winder of the present embodiment is turned on and the yarn 20 is wound.

  Referring to the flowchart of FIG. 2, first, the machine power switch 81 is operated by the operator, and the power is turned on to the machine (S101). Then, the machine base control device installed in the machine base starts its operation, and this machine base control device controls the power supply to each winder unit 10 from the machine base. As a result, the unit control unit 50, the package drive control unit 42, the traverse control unit 46, etc. start operation. Further, the machine base control device drives the blower box after predetermined processing by the operator's button operation, and generates a negative pressure having an appropriate strength required for the yarn winding operation.

  It should be noted that the traverse control unit 46 does not immediately excite the traverse guide drive motor 45 even when the operation is started by the operation of S101, and waits for a predetermined time. The traverse control unit 46 starts exciting the traverse guide drive motor 45 almost simultaneously with the timing when the drive of the blower box is started (S102).

  Next, the traverse control unit 46 immediately performs the above-described origin finding operation (S103). Specifically, the traverse control unit 46 drives the traverse guide drive motor 45 to rotate the arm member 28 to one side, and the arm member 28 contacts the stopper 65 and cannot be rotated any more. The position of the traverse guide 11 is acquired by the traverse guide position sensor 47. Next, the traverse control unit 46 rotates the arm member 28 to the other side, and the traverse guide position sensor 47 acquires the position of the traverse guide 11 when the arm member 28 is in contact with the stopper 65 on the opposite side. Then, the position of the point that is the center of the two acquired positions is calculated by the origin calculation unit 61, and the obtained point position is stored in an appropriate memory by the origin storage unit 62. The stored position of the point is used as a reference point for traversing the yarn 20 and a control origin when controlling the traverse guide drive motor 45.

  Next, the traverse control unit 46 drives the traverse guide drive motor 45 to move the traverse guide 11 to the standby position (S104). This standby position is set at a position slightly outside the traverse stroke when the traverse guide 11 traverses the yarn 20 during normal winding. When the traverse guide position sensor 47 confirms that the traverse guide 11 has reached the standby position, the traverse control unit 46 turns off the excitation of the traverse guide drive motor 45 (S105). As a result, the arm member 28 is released from the electromagnetic force, and the traverse guide 11 can move in a substantially free manner.

  In this state, the unit controller 50 waits until it becomes a state in which the yarn splicing work as a previous stage of the winding work can be started (S106). The state where the yarn joining operation can be started is a state where the yarn supplying bobbin 21 is properly set in the yarn supplying section 24 and the unit switch 71 is not operated to the forced stop side. Furthermore, in the automatic winder of the present embodiment, when a splicing error has occurred continuously a predetermined number of times in the splicer device 14 in the past, the winding of the yarn 20 is stopped and the automatic stop is performed for a warning. It is configured. Accordingly, in determining whether the yarn splicing operation can be started, the necessity of the alarm stop as described above is also taken into consideration.

  If it is determined in S106 that the yarn joining is possible, the unit controller 50 causes the splicer device 14 to perform the yarn joining operation (S107) and waits until the yarn joining operation is completed (S108).

  In this yarn splicing operation, the yarn 20 (upper yarn) on the package 30 side is sucked and captured by the upper yarn guide pipe 26 rotated upward and guided to the splicer device 14. At this time, the package drive motor 41 is controlled by the package drive control unit 42 so as to reversely rotate the package 30 and unwind the yarn end appropriately.

  At this time, the excitation of the traverse guide drive motor 45 is released, and the arm member 28 can freely rotate between the two stoppers 65. Therefore, even if the yarn 20 on the package 30 side is engaged with the traverse guide 11, when the yarn 20 is pulled downward from the package 30 by the upper yarn guide pipe 26, the traverse guide 11 and the yarn 20 No excessive force is applied. Accordingly, yarn breakage and traverse guide 11 can be prevented from being damaged.

  In parallel with the above-described guide of the yarn 20 by the upper yarn guide pipe 26, the yarn 20 (lower yarn) on the yarn supply bobbin 21 side is captured by the lower yarn guide pipe 25, pulled upward, and sent to the splicer device 14. Guided. Then, the splicer device 14 joins the upper thread and the lower thread.

  In the automatic winder of the present embodiment, for example, when winding the yarn around the take-up bobbin 22 for the first time after turning on the machine base, the operator turns the yarn supply bobbin 21 while the unit switch 71 is operated to the forced stop side. The side yarn is manually pulled out and wound around the winding bobbin 22. Therefore, in the initial control after the machine power is turned on, the processing of S106 to S108 is not performed, and the unit controller 50 simply stands by until the forced stop of the unit switch 71 is released.

  After the yarn splicing operation is completed as described above (or after the forced stop by the unit switch 71 is released), the unit controller 50 drives the package drive motor 41 to rotate by the package drive controller 42 and also traverses. The control unit 46 immediately turns on the excitation of the traverse guide drive motor 45 (S109). Then, the traverse control unit 46 moves the traverse guide 11 to the origin position (S110), and then drives the traverse guide drive motor 45 to reciprocate. When the yarn 20 is not engaged with the traverse guide 11, the yarn 20 is naturally engaged with the traverse guide 11 immediately after the start of the reciprocating motion. Thus, the winding operation for winding the yarn 20 around the package 30 while traversing the yarn 20 is realized (S111).

  The unit controller 50 monitors whether or not it is necessary to immediately stop winding during the winding operation (S112). Here, specifically, the situation where the winding stop is necessary can be considered, for example, when the unit switch 71 is operated to the forced stop side, or when the clearer 15 detects the yarn breakage. Further, when the yarn defect of the yarn 20 is detected by the clearer 15 and the vicinity of the yarn defect is cut by the cutter 39, it is necessary to immediately stop the winding.

  The unit control unit 50 monitors the occurrence of the above-described situation where the winding stop is required by examining signals from the unit switch 71 and the clearer 15 during the winding operation. If it is determined in S112 that the winding should be stopped immediately, the unit controller 50 sends a signal to the package drive motor 41 to stop winding the yarn 20 (S113). Return to processing. Thereafter, as described above, the traverse control unit 46 moves the traverse guide 11 to the standby position and then turns off the excitation of the traverse guide drive motor 45. In this state, the traverse control unit 46 waits until the yarn splicing is enabled (S104). To S106).

  With the above-described series of flows, when the traverse guide drive motor 45 does not require excitation, control to actively turn off the excitation is realized, and high energy efficiency can be realized. In addition, when the traverse guide drive motor 45 is de-energized during the yarn splicing operation, even when the yarn 20 and the traverse guide 11 are engaged when the yarn end is guided by the upper yarn guide pipe 26, the yarn 20 is guided. Accordingly, the traverse guide 11 can move freely to some extent. Therefore, it is possible to prevent an excessive load from being applied to the yarn 20 and the traverse guide 11.

  As described above, the automatic winder according to the present embodiment includes a machine base and a plurality of winder units 10 arranged in parallel on the machine base. Each winder unit 10 includes a yarn supplying unit 24, a package drive motor 41, a traverse guide 11, a traverse guide drive motor 45, and a traverse control unit 46. The package drive motor 41 rotationally drives the take-up bobbin 22 on which the yarn 20 from the yarn supply bobbin 21 set in the yarn supply unit 24 is taken up. The traverse guide 11 is provided between the yarn supplying section 24 and the take-up bobbin 22, and engages with the yarn 20 when the yarn 20 is wound around the take-up bobbin 22 to traverse the yarn 20. The traverse guide drive motor 45 drives the traverse guide 11 to reciprocate by electromagnetic force. The traverse control unit 46 turns off the excitation of the traverse guide drive motor 45 during a part of the time from when the power of the machine base is turned on to when the winding of the yarn is started. The drive motor 45 is controlled. Specifically, the excitation of the traverse guide drive motor 45 is turned off during the time from when the power is turned on until the blower box is driven and the time for the splicing operation by the splicer device 14.

  As a result, the energy efficiency of the entire automatic winder can be improved by positively turning off the excitation in the time immediately after the power-on when the excitation of the traverse guide drive motor 45 is unnecessary.

  In addition, the traverse control unit 46 of the automatic winder according to the present embodiment, when the winding of the yarn 20 is stopped due to the occurrence of an abnormality (for example, yarn breakage, yarn cutting, alarm stop, etc.), The traverse guide drive motor 45 is controlled by the excitation controller 63 so that the excitation is turned off until the winding of the yarn 20 is resumed (S105 in FIG. 2).

  Thereby, the energy efficiency of the whole automatic winder can be improved by actively turning off the excitation at the time of abnormal stop where the excitation of the traverse guide drive motor 45 is unnecessary.

  Further, the automatic winder of the present embodiment includes a unit switch 71 that can be forcibly stopped to wind the yarn 20 when operated. The traverse control unit 46 controls the traverse guide drive motor 45 so that the excitation of the traverse guide drive motor 45 is turned off when the winding of the yarn 20 is stopped by the unit switch 71.

  As a result, the energy efficiency of the entire automatic winder can be improved by actively turning off the excitation during the forced stop when the excitation of the traverse guide drive motor 45 is unnecessary.

  In the automatic winder of the above embodiment, the traverse control unit 46 is configured to turn off the excitation of the traverse guide drive motor 45 when the clearer 15 has not detected the traveling of the yarn 20. 45 can also be controlled. That is, the winding (running) of the yarn 20 is stopped in the state immediately after the power is turned on, the forced stop by the unit switch 71, and the yarn splicing operation. In view of this point, when the clearer 15 is used as a yarn traveling detection sensor and the clearer 15 does not detect the traveling of the yarn, excitation of the traverse guide drive motor 45 is automatically turned off, and the traverse guide 11 is detected from electromagnetic force. It can also be configured to open.

  As a result, the winding stop state where the excitation of the traverse guide drive motor 45 is unnecessary is detected by the clearer 15, and the excitation of the traverse guide drive motor 45 is automatically turned off, so that the energy efficiency of the entire automatic winder Can be improved.

  Further, the automatic winder of the present embodiment includes a splicer device 14, which is a yarn layer formed by winding the yarn 20 around the yarn end on the yarn feeding unit 24 side and the winding bobbin 22. The yarn splicing operation is performed with 31 yarn ends. The traverse control unit 46 controls the traverse guide drive motor 45 to turn on the excitation of the traverse guide drive motor 45 after the splicing operation of the splicer device 14 is completed (S108 in FIG. 2).

  Thereby, since the excitation of the traverse guide drive motor 45 is off during the yarn splicing operation of the splicer device 14, even if the yarn 20 engaged with the traverse guide 11 is pulled toward the splicer device 14 side, The traverse guide 11 can move following it. Accordingly, it is possible to prevent the yarn from being rubbed strongly and causing a yarn joining error, and to avoid damage due to overload of the traverse guide 11.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example.

  The traverse device 27 may be configured to be able to control the reciprocating drive of the traverse guide 11 independently of the rotation of the winding bobbin 22. For example, the traverse device 27 may be a traverse device configured to reciprocate the traverse guide by driving a belt with a motor. Can be changed. Even in the case of this belt-type traverse device, it is possible to realize a state in which the traverse guide can move freely by turning off the excitation of the motor that drives the belt.

  Instead of the configuration in which the winding bobbin 22 is directly driven by the package drive motor 41, the contact roller 29 may be driven by the motor and the package 30 side may be driven to rotate.

  The detection of the traveling of the yarn 20 can be changed to be performed by an appropriate sensor of contact type or non-contact type arranged in the traveling path of the yarn 20 instead of being performed by the clearer 15.

  The traverse guide drive motor 45 may be a voice coil motor or a step motor, for example, instead of a servo motor.

  The process of S104 in FIG. 2 may be omitted, and the traverse guide 11 may be stopped at an arbitrary position to turn off the excitation. However, when the traverse guide 11 is moved to the standby position (a position slightly deviated from the traverse stroke) and controlled to turn off the excitation as in the above embodiment, the yarn 20 is pulled out from the package 30 by the upper yarn guide pipe 26. Therefore, it is preferable in that the yarn 20 is not easily entangled with the traverse guide 11 when guided to the splicer device 14.

  In the above embodiment, the standby position of the traverse guide 11 is set slightly outside the traverse stroke. However, instead of this, the standby position can be changed to be set at one end of the traverse stroke. Further, the standby position can be set at a position where the arm member 28 contacts the stopper 65 on one side.

  In the above embodiment, the control origin (reference point) of the traverse guide 11 is set as the center point of the traverse stroke. However, instead of this, for example, a point corresponding to one end of the traverse stroke can be changed to be obtained as the control origin (reference point).

  The processing of S102 to S105 in FIG. 2 is omitted, and the traverse guide drive motor 45 is continuously excited after the automatic winder is turned on until the yarn splicing by the splicer device 14 is completed and the winding operation is started. It can also be configured to turn off.

  In the above embodiment, the traverse guide 11 is forcibly moved to the origin position as shown in S110 of FIG. 2 at the start of winding, and the traverse by the traverse guide 11 is started from the origin when the yarn 20 is wound. It is configured as follows. However, the process of moving the traverse guide 11 to the origin position can be omitted, and the traverse guide 11 can be changed to start traversing the yarn 20 from that position regardless of the position of the traverse guide 11 at the start of winding. .

  The configurations of the traverse device 27 and the traverse control unit 46 are not limited to the automatic winder, and can be applied to, for example, a spinning machine as a yarn winding machine.

The schematic diagram and block diagram which showed the schematic structure of the winder unit with which the automatic winder which concerns on one Embodiment of this invention is provided. The flowchart which shows the control in case a power supply is turned on to an automatic winder and winding of a yarn is performed.

Explanation of symbols

10 Winder unit (yarn winding unit)
11 Traverse Guide 14 Splicer Device 15 Clearer (Detector)
22 Winding bobbin 24 Yarn feeding part 31 Yarn layer 41 Package drive motor (winding bobbin driving part)
45 Traverse guide drive motor (traverse yarn guide drive)
46 Traverse control unit (control unit)
71 Unit switch (Forced stop switch)

Claims (5)

Machine base,
A plurality of yarn winding units arranged in parallel on the machine base;
With
Each of the yarn winding units
A yarn feeding section;
A winding bobbin driving unit for rotationally driving a winding bobbin around which the yarn from the yarn supplying unit is wound;
A traverse yarn guide provided between the yarn supplying portion and the take-up bobbin, for traversing the yarn by engaging with the yarn when winding the yarn onto the take-up bobbin;
A traverse yarn guide driving unit for reciprocating the traverse yarn guide by electromagnetic force;
The traverse yarn guide driving unit is controlled so that the excitation of the traverse yarn guide driving unit is turned off at least during a period from when the power of the machine base is turned on to when winding of the yarn is started. A control unit,
A yarn winding machine comprising: A yarn feeding section;
A winding bobbin driving unit for rotationally driving a winding bobbin around which the yarn from the yarn supplying unit is wound;
A traverse yarn guide provided between the yarn supplying portion and the take-up bobbin, for traversing the yarn by engaging with the yarn when winding the yarn onto the take-up bobbin;
A traverse yarn guide driving unit for reciprocating the traverse yarn guide by electromagnetic force;
A control unit that controls the traverse yarn guide driving unit to turn off the excitation of the traverse yarn guide driving unit until the winding of the yarn is resumed when the winding of the yarn is stopped due to the occurrence of an abnormality; ,
A yarn winding machine comprising: A yarn feeding section;
A winding bobbin driving unit for rotationally driving a winding bobbin around which the yarn from the yarn supplying unit is wound;
A traverse yarn guide provided between the yarn supplying portion and the take-up bobbin, for traversing the yarn by engaging with the yarn when winding the yarn onto the take-up bobbin;
A traverse yarn guide driving unit for reciprocating the traverse yarn guide by electromagnetic force;
A forced stop switch capable of forcibly stopping the winding of the yarn by being operated;
A control unit that controls the traverse yarn guide drive unit to turn off the excitation of the traverse yarn guide drive unit when winding of the yarn is stopped by the forced stop switch;
A yarn winding machine comprising: A yarn feeding section;
A winding bobbin driving unit for rotationally driving a winding bobbin around which the yarn from the yarn supplying unit is wound;
A traverse yarn guide provided between the yarn supplying portion and the take-up bobbin, for traversing the yarn by engaging with the yarn when winding the yarn onto the take-up bobbin;
A traverse yarn guide driving unit for reciprocating the traverse yarn guide by electromagnetic force;
A detection unit capable of detecting the traveling of the yarn;
A control unit for controlling the traverse yarn guide driving unit to turn off excitation of the traverse yarn guide driving unit when the detection unit does not detect the running of the yarn;
A yarn winding machine comprising: A yarn winding machine according to any one of claims 1 to 4,
A yarn splicing device for splicing the yarn end on the yarn feeding portion side and a yarn end of a yarn layer formed by winding the yarn on the winding bobbin;
The yarn winding machine, wherein the controller controls the traverse yarn guide driving unit to turn on the excitation of the traverse yarn guide driving unit after the yarn joining operation of the yarn joining device is completed.

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