JP2013252948A - Textile machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a textile machine capable of improving positioning accuracy of a drive member without depending on mounting accuracy.SOLUTION: An automatic winder (textile machine) comprises an upper-yarn catching member 30, a stepping motor, a magnet sensor, a number-of-pulse counting section, and a drive control section. The stepping motor moves the upper-yarn catching member 30 by an amount corresponding to a specified number of pulses. The magnet sensor detects an origin position, which is a reference position, of the upper-yarn catching member 30. The number-of-pulse counting section obtains an actual measurement value, which is the number of pulses necessary for moving the upper-yarn catching member 30 from a target position to the origin position. The drive control section determines a standby position of the upper-yarn catching member 30 in view of the actual measurement number counted by the number-of-pulse counting section, a theoretical value, and the origin position.

Description

  The present invention relates to a textile machine. In detail, it is related with the structure which adjusts the drive member with which a textile machine is equipped to a target position correctly.

  A textile machine such as an automatic winder includes various driving members (members driven by a motor or the like) such as a member that captures an upper yarn or a lower yarn and a yarn joining device. As a method of driving the drive member, a configuration in which an output of one motor is transmitted to a plurality of drive members using a cam or the like, and a configuration in which a dedicated motor is arranged for each drive member are known. Patent document 1 discloses the textile machine of the latter structure.

  In the textile machine of Patent Document 1, the winding unit is divided into a plurality of parts, and a controller and a motor are arranged for each of these parts, thereby modularizing the part. Thereby, since each module can be removed easily, maintainability can be improved. Also, the wiring can be simplified as compared with a configuration in which the motor and the control device are integrated in one place.

  Further, in this type of textile machine, a method for adjusting the position of the driving member will be briefly described by taking the upper thread catching member 30 as an example. FIG. 7 is a schematic side view for explaining a conventional position adjusting method. The winding unit 11 includes an origin sensor for determining the origin of the motor that drives the upper thread catching member 30. The upper thread catching member 30 is normally located at the origin position determined by this origin sensor (see FIG. 7A). When there is an instruction to catch the yarn end on the package 18 side, the motor moves the upper yarn catching member 30 by a predetermined distance (theoretical value) (see FIG. 7B). . Here, the theoretical value refers to the design origin position of the upper thread catching member 30 (a value that does not consider deviation or error) and the design position of the cradle 23 or the like (a value that does not consider deviation or error). The theoretical amount of movement required based on Since the diameter of the package 18 increases as the yarn winding progresses, the theoretical value is a variable whose value is determined according to the progress of the yarn winding.

  According to this attachment method, when the positions of the upper thread catching member 30, the cradle 23, etc. are accurate, the suction mouth 34 at the tip of the upper thread catching member 30 is collided with a good position (the package 18 and other members). (Position where the yarn end can be satisfactorily captured).

JP 2009-203008 A

  However, in order to accurately position the upper thread catching member 30, the cradle 23, etc., it is necessary to attach not only the upper thread catching member 30 and the like but also the members that support them. Moreover, accuracy can be improved by using a jig or the like, but it takes time and labor, and experience and skill are required. If a deviation occurs, there is a possibility that the upper thread catching member 30 may collide with the package 18 or other members when the upper thread catching member 30 rotates upward.

  Further, when maintenance is performed after removing the parts of the textile machine, each member has to be mounted again at an accurate position, which is a heavy burden on the operator and the manufacturing worker.

  Note that this type of problem is common not only to the upper thread catching member 30 but also to all drive members provided in the textile machine.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a textile machine capable of improving the positional accuracy of a drive member without depending on the mounting accuracy.

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 the viewpoint of this invention, the textile machine of the following structures is provided. That is, the textile machine includes a drive member, a drive unit, an origin sensor, a command value measurement unit, and a drive control unit. The drive unit moves the drive member by an amount corresponding to the designated command value. The origin sensor detects an origin position that is a reference position of the drive member. The command value measuring unit obtains the command value necessary for moving the driving member from the target position to the origin position as an actually measured command value. The drive control unit includes the actual command value obtained by the command value measurement unit and a theoretical command value determined in advance to set a position where the drive member is moved from the target position by a predetermined command value as a standby position. And the standby position of the drive member is determined in consideration of the origin position.

  Thereby, the drive member can be accurately moved to the target position. Further, since it is not necessary to attach the driving member with high accuracy, the assembling work of the driving member and its supporting member can be easily performed. Further, since the distance between the standby position and the target position can be set to the theoretical command value, the time required for the movement of the drive member can be accurately estimated.

  The textile machine preferably has the following configuration. That is, the textile machine includes a plurality of winding units including the driving member. The command value measurement unit obtains the actual measurement command value for each winding unit.

  Thereby, since the mounting error differs for each winding unit, the drive members of all the winding units can be accurately moved to the target position by acquiring the command value as described above.

  In the textile machine, it is preferable that the drive control unit sets a position separated from the target position by the same command value as a standby position.

  Thereby, since the movement amount when moving a drive member to a target position can be made the same between winding units, it can prevent that the shift | offset | difference arises in the working time of a drive member.

  The textile machine preferably has the following configuration. That is, this textile machine includes a plurality of the drive members. Each of the driving members includes the individual driving unit.

  Thereby, position control can be performed by setting a target position for each drive member.

  In the textile machine, the drive unit is preferably a stepping motor.

  Thereby, since the number of pulses can be used as a command value, position control can be easily performed.

  The textile machine preferably has the following configuration. That is, the command value is the number of pulses transmitted from the drive control unit to drive the stepping motor. The command value measuring unit is a pulse number counting unit that counts the number of pulses.

  As a result, the actually measured command value can be obtained simply by counting the number of pulses, and the drive member can be moved from the standby position to the target position simply by specifying the theoretical command value. Therefore, the processing necessary for the present invention can be simplified.

  In the textile machine, the origin sensor is preferably a magnet sensor.

  Thereby, the origin position of the drive member can be detected with an inexpensive and simple configuration.

  In the textile machine, the drive member is preferably a yarn catching member that catches the yarn end on the package side with the vicinity of the package as a target position.

  As a result, it is desired that the yarn catching member accurately moves to the target position in order to surely avoid the situation where the yarn catching member collides with the package or the situation where the yarn end on the package side cannot be caught. Can be demonstrated.

The front view which shows the whole structure of the automatic winder provided with the winding unit which concerns on one Embodiment of this invention. The side view of a winding unit. The block diagram which shows the structure for driving an upper thread | yarn capture | acquisition member. The flowchart which shows the process of the automatic winder at the time of correction | amendment mode. The schematic side view explaining the number of pulses counted in the correction mode. FIG. 3 is a schematic side view for explaining a standby position and a moving amount of an upper thread catching member at the time of winding a thread. The schematic side view explaining the conventional position adjustment method.

  Next, an automatic winder according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of an automatic winder 10 of the present embodiment.

  As shown in FIG. 1, an automatic winder (textile machine) 10 includes a plurality of winding units 11 arranged side by side, a machine base control device 12, a yarn feeding bobbin supply device 13, and a doffing device 14. It is provided as a main configuration.

  The machine base control device 12 is configured to be able to communicate with each winding unit 11. The operator of the automatic winder 10 can manage the plurality of winding units 11 collectively by appropriately operating the machine base control device 12.

  Each winding unit 11 is configured to unwind the yarn from the yarn supplying bobbin 15 and wind the wound yarn 16 around the winding bobbin while traversing. The winding bobbin in which the yarn 16 is wound is called a package 18.

  Between the yarn feeding bobbin supply device 13 and each winding unit 11, a yarn feeding bobbin conveying mechanism (not shown) configured by a belt conveyor or the like is disposed. The yarn supplying bobbin conveying mechanism is configured to convey a conveying tray 19 (FIG. 2) on which the yarn supplying bobbin 15 is placed to each winding unit 11.

  The yarn supplying bobbin supplying device 13 is configured to place the yarn supplying bobbins 15 one by one on the conveying tray 19 and then send them to the yarn supplying bobbin conveying mechanism. With this configuration, the yarn supplying bobbin 15 can be supplied to each winding unit 11.

  The doffing device 14 travels to the position of the winding unit 11 when the package 18 becomes full in each winding unit 11 (a state in which a predetermined amount of yarn is wound), It is configured to remove and set an empty winding bobbin. The operations of the yarn feeding bobbin supply device 13 and the doffing device 14 are controlled by a machine control device 12.

  Next, the configuration of the winding unit 11 will be described with reference to FIG.

  Each winding unit 11 includes a yarn supplying unit 20 and a winding unit 21.

  The yarn supplying unit 20 is configured to hold the yarn supplying bobbin 15 placed on the transport tray 19 at a predetermined position. Thereby, the yarn 16 can be appropriately unwound from the yarn supplying bobbin 15.

  The winding unit 21 includes a cradle 23 and a winding drum 17.

  The cradle 23 has a pair of bearing centers, and the winding bobbin 22 (or the package 18) is rotatably supported by sandwiching the winding bobbin 22 between the bearing centers. The cradle 23 is configured such that the outer periphery of the supporting package 18 can be brought into contact with the outer periphery of the winding drum 17.

  The winding drum 17 is for traversing the yarn 16 on the surface of the package 18 and rotating the package 18. The winding drum 17 is rotationally driven by a drive source (not shown) such as an electric motor. The package 18 can be driven and rotated by rotationally driving the winding drum 17 in a state where the outer periphery of the package 18 is in contact with the winding drum 17. A spiral traverse groove (not shown) is formed on the outer peripheral surface of the winding drum 17. The yarn 16 unwound from the yarn feeding bobbin 15 is wound around the surface of the package 18 while being traversed (traversed) with a certain width by the traverse groove. Thereby, the package 18 having a constant winding width can be formed.

  Each winding unit 11 includes an operation unit 51 in front of the winding unit 11. The operator can issue an instruction to the winding unit 11 by operating the operation unit 51.

  In addition, each winding unit 11 includes, in order from the yarn feeding unit 20 side, in the yarn traveling path between the yarn feeding unit 20 and the winding unit 21, the unwinding assisting device 24, the tension applying device 25, and the yarn joining unit. The apparatus 26 and the yarn quality measuring device 27 are arranged. In the following description, the upstream side and the downstream side in the traveling direction of the yarn 16 may be simply referred to as “upstream side” and “downstream side”.

  The unwinding assisting device 24 includes a regulating member 28 that can cover the core tube of the yarn feeding bobbin 15. The restricting member 28 is configured in a substantially cylindrical shape and is disposed so as to contact a balloon formed on the yarn layer upper portion of the yarn feeding bobbin 15. The balloon is a portion where the yarn 16 unwound from the yarn feeding bobbin 15 is swung around by centrifugal force. By bringing the regulating member 28 into contact with the balloon, a tension is applied to the yarn 16 of the balloon portion, and the yarn 16 is prevented from being swung excessively. Thereby, the yarn 16 can be appropriately unwound from the yarn supplying bobbin 15.

  The tension applying device 25 applies a predetermined tension to the traveling yarn 16. In the present embodiment, the tension applying device 25 is configured by a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are biased so that the comb teeth are engaged with each other. By passing the yarn 16 while bending the interdigitated comb teeth, an appropriate tension can be applied to the yarn 16 and the quality of the package 18 can be improved. However, the tension applying device 25 is not limited to the gate type, but may be a disk type, for example.

  When the yarn 16 between the yarn supplying bobbin 15 and the package 18 is in a divided state for some reason, the yarn joining device 26 combines the lower yarn on the yarn supplying bobbin 15 and the upper yarn on the package 18 side. It is intended for splicing. In the present embodiment, the yarn joining device 26 is configured as a splicer device that twists yarn ends together by a swirling air flow generated by compressed air. However, the yarn joining device 26 is not limited to the splicer device, and for example, a mechanical knotter or the like can be adopted.

  The yarn quality measuring device 27 is configured to monitor the thickness of the yarn 16 with an appropriate sensor. Further, a cutter (not shown) is provided in the vicinity of the yarn quality measuring device 27 for cutting the yarn 16 immediately when the yarn quality measuring device 27 detects an abnormality in the yarn thickness.

  On the lower side and upper side of the yarn joining device 26, a lower yarn catching member 29 that catches and guides the yarn (lower yarn) on the yarn feeding bobbin 15 side, and a yarn (upper yarn) on the package 18 side is caught and guided. An upper thread catching member (driving member, thread catching member) 30 is provided. The lower thread catching member 29 includes a lower thread catching pipe 31 connected to a negative pressure source (not shown) and a suction port 32 at the tip. The upper thread catching member 30 includes an upper thread catching pipe 33 connected to a negative pressure source (not shown) and a suction mouth 34 at the tip. With this configuration, a suction flow can be applied to the suction port 32 and the suction mouth 34.

  With this configuration, when the yarn is split between the yarn feeding bobbin 15 and the package 18, the lower yarn catching member 29 catches the yarn on the yarn feeding bobbin side and introduces it to the yarn joining device. The yarn on the package side is caught by the catching member 30 (see FIG. 6B described later) and introduced into the yarn joining device 26. By driving the yarn joining device 26 in this state, the upper yarn and the lower yarn are joined, and the yarn 16 is made continuous between the yarn supplying bobbin 15 and the package 18. Thereby, winding of the thread | yarn 16 to the package 18 can be restarted.

  Thus, the yarn 16 can be wound around the yarn feeding bobbin 15.

  Next, a description will be given of a configuration in which the upper thread catching member 30 as a driving member is positioned to the vicinity of the package with high accuracy regardless of attachment accuracy. First, a configuration for moving the upper thread catching member 30 will be described. FIG. 3 is a block diagram showing a configuration for driving the upper thread catching member 30.

  As shown in FIGS. 2 and 3, each winding unit 11 includes a stepping motor (driving unit) 41, a pulley 42, a transmission belt 43, a pulley 44, and a structure for driving the upper thread catching member 30. A magnet sensor (origin sensor) 45, a drive control unit 46, a pulse number storage unit 47, and a pulse number counting unit (command value measuring unit) 48 (see FIGS. 2 and 3).

  The stepping motor 41 rotates by an amount corresponding to the number of pulses when the number of pulses (command value) is designated from the drive control unit 46 shown in FIG. The stepping motor 41 is a drive unit for driving the upper thread catching member 30, and the other members are driven by other motors (not shown). The pulse number counting unit 48 is configured to count the number of pulses designated by the drive control unit 46 to the stepping motor 41 and store the count value in the pulse number storage unit 47. A pulley 42 is attached to the output shaft 41 a of the stepping motor 41.

  A transmission belt 43 is stretched between the pulley 42 and the pulley 44. The pulley 44 is attached with a base end portion (portion serving as a rotation center) of the upper thread catching member 30. With the above configuration, the upper thread catching member 30 can be rotated upward or downward by driving the stepping motor 41.

  A magnet sensor 45 for determining the origin position, which is the reference position of the upper thread catching member 30, is attached to the pulley 42 or the pulley 44. The magnet sensor 45 is configured to send a detection signal to the drive control unit 46 when the pulley 42 or the pulley 44 is in a predetermined rotational phase. The rotation state when the magnet sensor 45 transmits the detection signal is the origin of the stepping motor 41, and the rotation control of the stepping motor 41 is performed based on this origin. In the following, the position of the upper thread catching member 30 when the stepping motor is at the origin is referred to as “origin position”.

  Next, a correction mode for correcting the position of the upper thread catching member 30 will be described. FIG. 4 is a flowchart showing processing of the automatic winder 10 in the correction mode. FIG. 5 is a schematic side view for explaining the number of pulses counted in the correction mode.

  When the automatic winder 10 is installed, or after the cradle 23 or the upper thread catching member 30 is once removed (or replaced), an attachment error may occur. Therefore, in this case, the operator operates the machine base control device 12, the operation unit 51, and the like to instruct to shift to a correction mode for performing correction. Thereby, the automatic winder 10 shifts to the correction mode (S101). Then, the operator attaches the take-up bobbin 22 around which the yarn 16 is not wound to the cradle 23, and selects the upper yarn catching member 30 as the device to be corrected (S102). When correcting other devices, the other devices described above are selected as devices to be corrected.

  Next, the drive control unit 46 of the automatic winder 10 rotates the upper thread catching member 30 selected in S102 upward (S103). The amount of rotation at this time is set in advance, and even if the mounting position is slightly shifted, the suction mouse 34 and the take-up bobbin 22 stop at a position where they do not collide. Then, the operator operates, for example, the up button or the down button of the operation unit 51 to raise or lower the upper thread catching member 30 (S104), and the upper thread catching member 30 is positioned at the optimum position (target position). Adjust as follows. When the operator determines that the upper thread catching member 30 is located at the target position, the operator presses a confirmation button or the like. Thereby, the drive control part 46 receives that the target position was decided (S105, Fig.5 (a)).

  After receiving the confirmation of the target position, the drive control unit 46 lowers the upper thread catching member 30 from the target position to the origin position (S106, FIG. 5B). At this time, the pulse number counting unit 48 counts the number of pulses necessary for the upper thread catching member 30 to descend from the target position to the origin position, and counts the number of pulses (measured command value, hereinafter referred to as the measured number). Alternatively, the difference between the actually measured number and the theoretical value (theoretical command value) is stored in the pulse number storage unit 47 (S107). As described above, since the theoretical value is a value that changes according to the diameter of the package 18, when storing the difference from the actually measured number, the theoretical value when the yarn 16 is not wound is obtained. A value is used. Thereafter, the automatic winder 10 ends the correction mode (S108).

  Here, the actual number obtained in S106 by the pulse number counting unit 48 is a value measured after the attachment of each member, and is a value that takes into account an attachment error and a dimensional error. Therefore, even if the mounting accuracy is not high, the upper thread catching member 30 can be accurately positioned at the target position by using the actually measured number. Furthermore, since this operation is much easier than the conventional installation operation that requires very high accuracy, the burden on the operator (or the manufacturing operator) can be reduced. In addition, since an attachment error etc. differ for every winding unit 11, the user needs to perform said operation | work for every winding unit 11. FIG.

  Hereinafter, a specific method for moving the upper thread catching member 30 using the actually measured number will be described. FIG. 6 is a schematic side view for explaining the standby position and the amount of movement of the upper thread catching member 30 when winding the yarn.

  In the present embodiment, the drive control unit 46 determines the standby position in consideration of the actually measured value, the theoretical value, and the origin position. Specifically, the pulse number storage unit 47 stores a difference between the actually measured number and the theoretical value, and the drive control unit 46 sets the standby position of the upper thread capturing member 30 by an amount corresponding to this difference. The position is changed from the origin position (see FIG. 6A). For example, in FIG. 5B, the movement amount corresponding to the theoretical value in the correction mode is smaller than the movement amount indicated by the actually measured number. Accordingly, the upper thread catching member 30 is made to wait on the ascending side by this amount. As a result, when winding the yarn 16, the suction mouth 34 can be positioned at the target position simply by raising the upper yarn catching member 30 by the theoretical value. That is, the theoretical value can also be expressed as “a value determined in advance in order to set a position moved by a predetermined number of pulses from the target position as a standby position”.

  Further, by selecting the standby position in this way, the movement amount of the upper thread catching member 30 of each winding unit 11 can be made uniform, so the time taken for the upper thread catching member 30 to catch the yarn end can be accurately determined. Can be estimated. Therefore, since the next yarn joining operation can be started quickly, the yarn 16 can be efficiently wound. This standby position can be expressed as “a position separated from the target position by the same number of pulses (theoretical value) regardless of the number of actual measurements”.

  Moreover, although it is not a method of determining the standby position, the following processing can be performed using the measured number. That is, the pulse number counting unit 48 stores the actually measured number in the pulse number storage unit 47 instead of the “difference between the actually measured number and the theoretical value”. The standby position of the upper thread catching member 30 is set as the origin position. At the time of winding the yarn 16, when the upper yarn catching member 30 is moved, the number of pulses obtained by adding the actually measured number and the correction amount based on the theoretical value obtained from the diameter of the package 18 is output to the stepping motor 41. To do. As a result, the upper thread catching member 30 can be positioned at the target position with the same accuracy as described above.

  As described above, the automatic winder 10 of the present embodiment includes the upper thread catching member 30, the stepping motor 41, the magnet sensor 45, the pulse number counting unit 48, and the drive control unit 46. The stepping motor 41 moves the upper thread catching member 30 by an amount corresponding to the designated number of pulses. The magnet sensor 45 detects the origin position that is the reference position of the upper thread catching member 30. The pulse number counting unit 48 obtains an actual measurement value that is the number of pulses necessary to move the upper thread capturing member 30 from the target position to the origin position. The drive control unit 46 determines the standby position of the upper thread catching member 30 in consideration of the actually measured number counted by the pulse number counting unit 48, the theoretical value, and the origin position.

  As a result, the upper thread catching member 30 can be accurately moved to the target position. Further, since it is not necessary to attach the upper thread catching member 30 with high accuracy, the assembling work of the upper thread catching member 30 and its supporting member can be easily performed. In addition, since the distance between the standby position and the target position can be a theoretical value, the time required for the movement of the upper thread catching member 30 can be accurately estimated.

  Further, the automatic winder 10 of the present embodiment includes a plurality of winding units 11 including the upper thread catching member 30. The pulse number counting unit 48 of the winding unit 11 obtains an actual measurement value for each winding unit 11.

  Thereby, since the mounting error differs for each winding unit 11, the drive members of all the winding units 11 can be accurately moved to the target position by acquiring the number of pulses as described above.

  Further, in the automatic winder 10 of the present embodiment, the drive control unit 46 sets a position separated from the target position by the same number of pulses as the standby position regardless of the number of pulses obtained by the pulse number counting unit 48.

  Thereby, since the movement amount (namely, movement time) when moving the upper thread catching member 30 to the target position can be made the same between the winding units 11, the working time of the upper thread catching member 30 is shifted. Can be prevented.

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

  In the above description, the upper thread catching member 30 has been described as an example of the driving member. However, the driving member is not limited to the upper thread catching member 30. For example, the yarn joining device, the suction switching shutter, the unwinding assisting device, the lower thread It may be a capturing member or the like. Hereinafter, it demonstrates in order.

  2. Description of the Related Art A yarn joining device is known that includes a yarn shifting lever that draws a yarn supplied by a lower yarn catching member and an upper yarn catching member into a yarn joining nozzle. Since the amount of overlap between the upper thread and the lower thread is determined by the amount of movement of the yarn gathering lever, high precision position control is required for the yarn gathering lever. Therefore, an appropriate yarn joining operation can be performed by correcting the operation of the yarn shifting lever by the above method.

  A known unwinding assisting device is one that descends toward the yarn feeding bobbin as the yarn is unwound and keeps the distance between the portion where the yarn is unwound and the unwinding assisting device constant. In this type of unwinding assist device, high-precision position control is required to prevent collision between the unwinding assist device and the yarn feeding bobbin and to appropriately unwind the yarn. Accordingly, the yarn can be appropriately unwound by correcting the lowering of the unwinding assisting device by the above method.

  The suction switching shutter is a shutter that is provided in a pipe connected to a negative pressure source of the textile machine and switches which of a plurality of suction means for sucking the yarn and the foreign matter is operated. Since the suction force set in advance cannot be exhibited when the suction switching shutter is displaced, high-accuracy position control is required. Therefore, the suction means can be appropriately switched by correcting the operation of the suction switching shutter by the above method.

  The lower thread catching member, like the upper thread catching member 30, can be switched between a standby position and a catching position for catching the lower thread. Then, by correcting this capture position by the above method, the suction port can be accurately positioned at the determined capture position. Therefore, the yarn can be reliably captured.

  The automatic winder 10 may be configured to perform position control with respect to a plurality of driving members by the above method. For example, the present invention can be applied to both the upper thread catching member 30 and the lower thread catching member 29. In this case, it is preferable that a driving unit is provided for each driving member.

  In the adjustment mode, the winding bobbin 22 around which the yarn 16 is not wound is used, but the winding bobbin 22 (package 18) around which the yarn 16 is wound may be used. In this case, it is necessary to obtain a theoretical value corresponding to the current diameter of the package 18 to be used and apply the theoretical value.

  The drive unit is not limited to the stepping motor 41, and other equipment (servo motor or the like) capable of adjusting the drive amount can be used.

  The origin sensor is not limited to the magnet sensor 45, and other equipment (limit switch or the like) that can set the origin position can be used.

  The configuration for transmitting the driving force of the stepping motor 41 to the upper thread catching member 30 is not limited to the pulleys 42 and 44 and the transmission belt 43, and for example, a configuration using a gear may be used.

  The configuration for supplying the yarn supplying bobbin 15 to the automatic winder 10 is not limited to the tray type, and a magazine type bobbin supplying device may be provided for each winding unit 11.

  The present invention is not limited to the automatic winder 10 and can be applied to, for example, a spinning machine.

10 Automatic winder (textile machine)
11 Winding unit 16 Yarn 30 Upper thread catching member (drive member, yarn catching member)
41 Stepping motor (drive unit)
42 Pulley 43 Transmission belt 44 Pulley 45 Magnet sensor (origin sensor)
46 Drive control unit 47 Pulse number storage unit 48 Pulse number count unit (command value measurement unit)

Claims (8)

A drive member;
A drive unit that moves the drive member by an amount corresponding to the specified command value;
An origin sensor for detecting an origin position which is a reference position of the drive member;
A command value measuring unit for obtaining the command value necessary for moving the driving member from a target position to the origin position as an actual command value;
The actual command value obtained by the command value measuring unit, a theoretical command value determined in advance to set a position where the drive member is moved from the target position by a predetermined command value as a standby position, and the origin position , In consideration of the drive control unit for determining the standby position of the drive member;
A textile machine comprising: The textile machine according to claim 1,
A plurality of winding units including the driving member;
The said command value measurement part calculates | requires the said actual measurement command value for every said winding unit, The textile machine characterized by the above-mentioned. A textile machine according to claim 2,
The textile machine according to claim 1, wherein the drive control unit sets a position separated from the target position by the same command value as a standby position. A textile machine according to any one of claims 1 to 3,
A plurality of the drive members;
Each of the driving members includes the individual driving unit. A textile machine according to any one of claims 1 to 4,
The textile machine according to claim 1, wherein the driving unit is a stepping motor. A textile machine according to claim 5,
The command value is the number of pulses transmitted from the drive control unit to drive the stepping motor,
The textile machine according to claim 1, wherein the command value measuring unit is a pulse number counting unit that counts the number of pulses. A textile machine according to any one of claims 1 to 6,
The textile machine according to claim 1, wherein the origin sensor is a magnet sensor. A textile machine according to any one of claims 1 to 7,
The textile machine according to claim 1, wherein the driving member is a yarn catching member that catches a yarn end on the package side with a vicinity of the package as a target position.

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