JP2023030237A - bobbin preparation device - Google Patents

Abstract

To provide a bobbin preparation device that can precisely control a movement of a hook member with simple constitution and easily adjust a movement quantity.SOLUTION: A bobbin preparation device comprises a hook member 30, a first motor 31, a first motor control part, a second motor 61, and a second motor control part. The first motor 31 moves the hook member 30 horizontally. The first motor control part controls a rotating direction and a rotational quantity of the first motor 31. The second motor 61 moves the hook member 30 vertically. The second motor control part controls a rotating direction and a rotational quantity of the second motor 61.SELECTED DRAWING: Figure 2

Description

The present invention relates to a bobbin preparation device.

2. Description of the Related Art Conventionally, a bobbin preparation device that conveys a yarn supply bobbin supplied from a yarn supply bobbin supply device or the like to a winding device is known. The bobbin preparation device performs various processes (preparations) on the yarn supplying bobbin so that the yarn on the yarn supplying bobbin can be appropriately wound by the winding device. The backwind yarn may be wound on the surface of the yarn layer on the yarn supplying bobbin supplied from the yarn supplying bobbin supply device. The bobbin preparation device performs the process of cutting or stripping the backwind yarn. US Pat.

The bobbin preparation devices of Patent Documents 1 to 3 are provided with a hooking member that hooks the backwind yarn and cuts or peels it off. In Patent Document 1, by rotating a hooking member (search cutter) using the driving force of a cylinder, the hooking member can be moved closer to or away from the yarn supplying bobbin (cop). disclosed. Patent Document 2 describes moving a hooking member (blade member) in the vertical direction using a cylinder, and moving the hooking member in the horizontal direction using a cylinder. Similarly to Patent Document 1, Patent Document 3 discloses that the driving force of a cylinder is used to operate a hooking member. Further, in Patent Document 3, when a hooking member (probe gauge) is caught on the backwind yarn and cannot be separated, the hooking is eliminated by rotating the yarn feeding bobbin (cop) in the rewinding direction. is disclosed.

JP-A-3-138265 JP-A-9-77369 JP-A-2000-313566

In Patent Documents 1 to 3, a cylinder is used to move the hooking member. Therefore, in order to precisely control the movement of the hooking member, a complicated mechanism combining many mechanical elements is required. In addition, it takes time and effort to adjust the amount of movement of the hooking member.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main object is to provide a bobbin preparation device capable of precisely controlling the movement of a hooking member with a simple structure and easily adjusting the amount of movement. is to provide

Means and Effects for Solving Problems

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

According to the aspect of the present invention, a bobbin preparation device having the following configuration is provided. That is, the bobbin preparation device prepares the yarn supplying bobbin for winding the yarn by the winding device. The bobbin preparation device includes a hooking member, a first motor, a first motor controller, a first moving mechanism, a second motor, a second motor controller, and a second moving mechanism. The hooking member hooks the backwind yarn wound around the surface of the yarn layer of the yarn supplying bobbin to cut or peel off the yarn. The first motor generates a first driving force that horizontally moves the hooking member. The first motor control section controls the direction and amount of rotation of the first motor. The first moving mechanism uses the first driving force generated by the first motor to horizontally move the hooking member to approach or separate from the yarn feeding bobbin. The second motor generates a second driving force that vertically moves the hooking member. The second motor control section controls the direction and amount of rotation of the second motor. The second moving mechanism uses the second driving force generated by the second motor to vertically move the hooking member.

Accordingly, by controlling the direction and amount of rotation of at least one of the first motor and the second motor, it is possible to precisely control the movement of the hooking member with a simple configuration. Further, the amount of movement of the hooking member can be adjusted simply by changing the set value.

The bobbin preparation device includes a cancellation control section that performs control to cancel the locked state in which the hooking member caught on the backwind yarn cannot separate from the yarn feeding bobbin. is preferred.

As a result, even when the hooking member is locked, the locked state can be canceled without calling the operator.

In the bobbin preparation device, it is preferable that, in the locked state, the release control section transmits a command to the second motor control section to move the hooking member downward.

As a result, the hooking member can be pulled out from the backwind yarn, so there is a possibility that the locked state can be resolved.

In the bobbin preparation device, in the locked state, the release control section transmits a command to the first motor control section to move the hook member downward before moving the hook member downward. It is preferable to push out to the yarn supplying bobbin side.

As a result, the tension of the backwind thread caught on the hooking member can be weakened, so that the locked state can be released more reliably.

The bobbin preparation device described above preferably has the following configuration. That is, the bobbin preparation device includes a bobbin rotating device that rotates the yarn supplying bobbin about the axial direction. In the locked state, the canceling control section transmits a command to the bobbin rotating device to rotate the yarn feeding bobbin in a direction opposite to the direction in which the backwind yarn is cut or peeled off.

As a result, the backwind thread that has been caught on the hooking member moves in a direction away from the hooking member, so there is a possibility that the locked state can be eliminated.

In the bobbin preparation device, in the locked state, the cancellation control section transmits a command to the first motor control section to rotate the hooking member before rotating the yarn feeding bobbin in the reverse direction. It is preferable to push out to the yarn supplying bobbin side.

As a result, the tension of the backwind thread caught on the hooking member can be weakened, so that the locked state can be released more reliably.

In the bobbin preparation device, in the locked state, the release control unit transmits a command to the second motor control unit to move the hooking member downward while issuing a command to the bobbin rotating device. It is preferable to rotate the yarn feeding bobbin in a direction opposite to the direction in which the backwind yarn is cut or stripped.

As a result, the hooking member moves downward and the backwind yarn hooked on the hooking member moves upward, so that the locked state can be more reliably released.

It is preferable that the bobbin preparation device includes a detection section that detects the position or movement of the hooking member by the first moving mechanism.

Thereby, the hooking member can be controlled based on the position of the hooking member.

The bobbin preparation device described above preferably has the following configuration. That is, the hooking member is in an operation position for cutting or peeling off the backwind yarn of the yarn supplying bobbin, and waits until the next yarn supplying bobbin is supplied after cutting or peeling off the backwind yarn. It is movable between a standby position and. The detector detects whether or not the hooking member is at the standby position.

As a result, even if the hooking member is controlled to return to the standby position, for example, if the detection unit does not detect this, it can be estimated that the hooking member is in the locked state.

In the bobbin preparation device, it is preferable that the detection section is a distance sensor that detects a distance to the yarn feeding bobbin.

Thereby, the hooking member can be moved to an appropriate position based on the shape of the yarn feeding bobbin. Alternatively, when the distance sensor moves integrally with the hooking member, it is possible to determine whether the hooking member is in the locked state based on the detection result of the distance sensor.

In the bobbin preparation device, it is preferable that the detector is a load detector that detects the load of the first motor.

As a result, for example, when the load of the first motor increases greatly when the hooking member is controlled to return to the standby position, it can be estimated that the hooking member is in the locked state.

1 is a schematic diagram showing a schematic configuration of a yarn feeding bobbin supply type winder including the bobbin preparation device of the first embodiment; FIG. FIG. 2 is a side view of the yarn end drawing device; FIG. 4 is a perspective view showing a first moving mechanism of the yarn end drawing device; FIG. 2 is a block diagram showing a configuration for controlling the yarn end drawing device; 4 is a flowchart showing processing of the yarn end drawing device; The figure which shows a mode that a backwind thread is hooked on a hooking member. The figure which shows a mode that a backwind thread|yarn is cut|disconnected. The figure which shows a mode that a hook member is pushed in and a locked state is cancelled|released. FIG. 10 is a diagram showing a state in which the locked state is canceled by moving the hooking member downward and separating it from the yarn supplying bobbin while the yarn supplying bobbin is rotated in the unwinding direction. FIG. 11 is a side view of a yarn end drawing device included in the bobbin preparation device of the second embodiment; The block diagram which shows the structure with which the bobbin preparation apparatus of 3rd Embodiment is provided.

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a schematic configuration of a yarn feeding bobbin supply type winder 1. As shown in FIG.

As shown in FIG. 1 , the yarn supplying bobbin supply type winder 1 includes a yarn supplying bobbin supply device 2 , a bobbin preparation device 3 , and an automatic winder (winding device) 4 . The yarn supplying bobbin supply device 2, the bobbin preparation device 3, and the automatic winder 4 each have a transport path for transporting the tray 6 on which the yarn supplying bobbins 5 are set. In the following description, upstream and downstream in the transport direction of the transport path are simply referred to as upstream and downstream.

The yarn supply bobbin supply device 2 sequentially winds the yarn (spun yarn) generated by spinning from the lower end side to the upper end side of the core tube 5a to form the yarn layer 5b. After that, the yarn feeding bobbin supply device 2 spirally winds the yarn around the surface of the yarn layer 5b from the upper end side to the lower end side. In the following description, this helical thread is called a backwind thread 5c. After that, the yarn supplying bobbin supply device 2 forms a bottom bunch (not shown) by winding the yarn around the lower part of the core tube 5a. The bobbin preparation device 3 prepares the yarn supplying bobbin 5 conveyed from the yarn supplying bobbin supply device 2 so that the automatic winder 4 can wind the yarn on the yarn supplying bobbin 5 . The automatic winder 4 winds the yarn wound around the yarn supplying bobbin 5 to produce a package.

The bobbin preparation device 3 includes a preparation path 11, a supply path 12, a storage path 13, and a return path 14 as transport paths for transporting trays. Each transport path transports the tray 6 by a conveyor mechanism (not shown).

The yarn supplying bobbin 5 supplied from the yarn supplying bobbin supply device 2 is conveyed along the preparation path 11 . In the preparation path 11, the yarn feeding bobbin 5 is prepared as described above. The preparation path 11 is provided with a bunch unwinding device 21 , a yarn end drawing device 22 and a yarn end preparation device 23 .

The bunch unwinding device 21 sucks and cuts the bottom bunch yarn from the yarn supplying bobbin 5 . The yarn end drawing device 22 cuts the backwind yarn 5c of the yarn supplying bobbin 5 or separates the backwind yarn 5c from the yarn layer 5b to form yarn ends. The yarn end preparation device 23 sucks the yarn end formed by the yarn end drawing device 22 and inserts it inside the core tube 5a. It should be noted that inserting the yarn end inside the core tube 5a is referred to as leading.

A downstream end of the preparation path 11 branches into a supply path 12 and a storage path 13 . A switching device 24 is provided at a location where the preparation path 11 branches into the supply path 12 and the storage path 13 . The switching device 24 can switch between a state in which the tray 6 is conveyed to the supply path 12 and a state in which the tray 6 is conveyed to the storage path 13 .

The supply route 12 is a route for conveying the yarn supplying bobbin 5 successfully processed by the bunch unwinding device 21 , yarn end drawing device 22 and yarn end preparation device 23 to the automatic winder 4 . The yarn of the yarn supplying bobbin 5 conveyed to the automatic winder 4 is unwound after reaching the automatic winder 4. - 特許庁The yarn supplying bobbin 5 (that is, the core tube 5a) from which the yarn has been unwound is transported again toward the bobbin preparation device 3. As shown in FIG. The yarn feeding bobbin 5 that has reached the bobbin preparation device 3 is conveyed along the return path 14 .

The storage path 13 is a path for temporarily storing the yarn supplying bobbins 5 for which processing by the bunch unwinding device 21, the yarn end drawing device 22, or the yarn end preparation device 23 has failed. The yarn feeding bobbins 5 stored in the storage path 13 are discharged from the bobbin preparation device 3 at appropriate timing. A downstream end of the storage path 13 merges with the return path 14 . When a predetermined number of yarn supplying bobbins 5 are stored in the storage path 13, the yarn supplying bobbins 5 are conveyed along the return path 14 to the bobbin removing device 25 and discharged. Alternatively, the operator may be notified when a predetermined number of yarn feeding bobbins 5 are stored, and the operator may manually discharge the bobbins.

A bobbin removing device 25 and a bobbin setting device 26 are provided in the return path 14 . The bobbin removing device 25 removes from the tray 6 and collects the core tube 5a of the yarn supplying bobbin 5 whose yarn has been unwound in the automatic winder 4 . The tray 6 from which the yarn supplying bobbin 5 has been removed by the bobbin removing device 25 is transported to the bobbin setting device 26 . The bobbin setting device 26 sets the yarn supplying bobbin 5 around which the yarn is wound by the yarn supplying bobbin supplying device 2 on the tray 6 . The tray 6 on which the yarn feeding bobbins 5 have been set by the bobbin setting device 26 is transported along the preparation path 11 again.

Next, the configuration of the yarn end drawing device 22 will be described in detail with reference to FIGS. 2 to 4. FIG. In the following description, the side closer to the yarn supplying bobbin 5 when viewed from the yarn end drawing device 22 is called "front", and the side away from the yarn supplying bobbin 5 is called "rear".

As shown in FIGS. 2 and 3, the yarn end drawing device 22 includes a hooking member 30. As shown in FIG. The hooking member 30 is in the shape of an L-shaped thin plate, and has a blade at its tip. The yarn end drawing device 22 hooks and cuts the backwind yarn 5c with a hooking member 30, or separates the backwind yarn 5c from the yarn layer 5b. The hooking member 30 may have a shape other than the L shape, and the hooking member 30 may not have a blade. Even if the hook member 30 is not formed with a blade, the backwind yarn 5c can be peeled off from the yarn layer 5b.

The yarn end drawing device 22 includes a first motor 31 and a first moving mechanism 40 as components for moving the hooking member 30 in the horizontal direction.

Moving the hooking member 30 in the horizontal direction means moving the hooking member 30 closer to or away from the yarn supplying bobbin 5 in a plan view. A horizontal direction is any direction perpendicular to the vertical direction. In this specification, the vertical direction includes not only the direction that exactly matches the direction of gravitational acceleration, but also the direction that substantially matches the direction of gravitational acceleration. Therefore, even if there is an error of several degrees with respect to the direction of gravitational acceleration, it is included in the vertical direction.

The first motor 31 is a stepping motor. Therefore, the first motor 31 rotates the output shaft at a rotation angle, a rotation direction, and a rotation speed according to the received pulse signal. As a result, the first motor 31 generates a first driving force that moves the hooking member 30 in the horizontal direction.

As shown in FIG. 4 , the first motor 31 is electrically connected to the first motor controller 32 . The first motor control unit 32 generates a pulse signal according to the command received from the control device (elimination control unit) 100 and transmits it to the first motor 31 .

The control device 100 includes an arithmetic device such as a CPU, a storage device such as an SSD, HDD, or flash memory, and a communication device. The control device 100 controls each part of the bobbin preparation device 3 by the arithmetic device executing the program.

As shown in FIGS. 2 and 3, the first moving mechanism 40 includes a base plate 41, a front arm 42, a coil spring 43, a rear arm 44, a regulation arm 45, a movable plate 46, a mounting member 47, Prepare.

The base plate 41 is a plate-like member for supporting or attaching the parts that make up the first moving mechanism 40 . The front arm 42 is a member that swings back and forth. One end (upper end) of the forearm 42 is rotatably attached to the base plate 41 . The other end (lower end) of the forearm 42 is rotatably attached to a movable plate 46 . A coil spring 43 is arranged between the base plate 41 and the front arm 42 and biases the front arm 42 forward. Note that the coil spring 43 may be configured to urge the movable plate 46 forward instead of the front arm 42 .

The rear arm 44 is arranged behind the front arm 42 and swings back and forth while maintaining parallelism with the front arm 42 . One end (upper end) of the rear arm 44 is rotatably attached to the base plate 41 . The other end (lower end) of the rear arm 44 is rotatably attached to a movable plate 46 .

A restriction arm 45 is arranged near the rear arm 44 . In FIG. 2 (that is, when viewed in the rotation axis direction of the rear arm 44 and the like), the rear arm 44 and the regulating arm 45 are arranged so as to overlap each other. The regulation arm 45 is connected with the output shaft of the first motor 31 . With this configuration, by rotating the output shaft of the first motor 31, the regulation arm 45 can be swung back and forth.

A first contact portion 44 a is formed on the front surface of the rear arm 44 . On the other hand, a second contact portion 45a is formed on the rear surface of the regulation arm 45. As shown in FIG. The first contact portion 44a and the second contact portion 45a are formed at positions where they can contact each other. However, the first contact portion 44a and the second contact portion 45a are not fixed and can be separated.

The movable plate 46 can move back and forth based on power from the front arm 42 or the rear arm 44 . The trajectory of the movable plate 46 is not linear but arcuate. Since the attitude of the movable plate 46 does not change even if the movable plate 46 moves in an arc shape, the attitude of the hooking member 30 does not change. In this specification, if the component of the movement direction includes the front-back direction (horizontal direction), it is referred to as moving in the front-back direction (horizontal direction). A hook member 30 is attached to the front end of the movable plate 46 via an attachment member 47 .

As described above, the coil spring 43 urges the front arm 42 (that is, the movable plate 46) forward. As a result, the movable plate 46 moves forward until the first contact portion 44a contacts the second contact portion 45a. After the first contact portion 44a contacts the second contact portion 45a, the holding force of the first motor 31 prevents the movable plate 46 from moving forward. In this state, when the first motor 31 operates to swing the regulation arm 45 forward, the biasing force of the coil spring 43 pushes the movable plate 46 forward until the first contact portion 44a contacts the second contact portion 45a. move to That is, the first driving force of the first motor 31 indirectly moves the hooking member 30 forward.

On the other hand, when the first motor 31 operates to swing the regulation arm 45 rearward, the second contact portion 45a presses the first contact portion 44a rearward, so that the movable plate 46 moves rearward. . That is, the first driving force of the first motor 31 moves the hooking member 30 rearward. Thus, the first driving force of the first motor 31 can move the hooking member 30 in the front-rear direction (horizontal direction).

By bringing the hooking member 30 close to the yarn supplying bobbin 5, the backwinding yarn 5c can be hooked by the hooking member 30, and the backwinding yarn 5c can be cut or peeled off. In the following description, the position of the hooking member 30 (the position indicated by the chain line in FIG. 2) when cutting or peeling off the backwind yarn 5c is referred to as the operating position, and is separated from the yarn supplying bobbin 5 to perform the following operation. The position of the hooking member 30 when waiting until the yarn feeding bobbin is supplied (the position indicated by the solid line in FIG. 2) is referred to as the standby position.

The yarn end drawing device 22 includes a first sensor stay 51, a first magnet sensor 52, and a first magnet 53 as components for detecting that the hooking member 30 is at the standby position.

The first sensor stay 51 is attached to the base plate 41 . The first magnet sensor 52 is attached to the first sensor stay 51 . When the first magnet sensor 52 receives a magnetic force equal to or greater than the threshold value, the first magnet sensor 52 transmits a detection signal indicating that effect to the control device 100 . In FIG. 2 (that is, when viewed in the rotation axis direction of the rear arm 44 and the like), the first magnet sensor 52 is arranged at a position overlapping the rear arm 44 when the hooking member 30 is in the standby position.

The first magnet 53 is attached to the rear arm 44 . The first magnet 53 is arranged on the surface on the side of the base plate 41 (that is, the surface on the side of the first magnet sensor 52). The first magnet 53 moves integrally with the rear arm 44 .

When the hooking member 30 is at the standby position, the first magnet sensor 52 detects the magnetic force of the first magnet 53 and transmits the detection signal to the control device 100 . When the hooking member 30 moves away from the standby position, the first magnet sensor 52 is less affected by the magnetic force of the first magnet 53 and therefore does not transmit the detection signal to the control device 100 . As described above, the first magnet sensor 52 detects whether or not the hooking member 30 is at the standby position.

The yarn end drawing device 22 includes a second motor 61 and a second moving mechanism 70 as components for moving the hooking member 30 in the vertical direction.

The second motor 61, like the first motor 31, is a stepping motor. The second motor 61 rotates the output shaft at a rotation angle, a rotation direction, and a rotation speed according to the pulse signal received from the second motor control section 62 . As a result, the second motor 61 generates a second driving force that moves the hooking member 30 in the vertical direction.

The second moving mechanism 70 includes a drive pulley 71 , a driven pulley 72 , a belt 73 , a belt fixing portion 74 and guide rails 75 .

The drive pulley 71 is attached to the output shaft of the second motor 61 . The driving pulley 71 is rotated by the second driving force. The driven pulley 72 is arranged so as to be vertically aligned with the driving pulley 71 . The belt 73 is looped around the drive pulley 71 and the driven pulley 72 . As the drive pulley 71 rotates, the belt 73 also rotates.

The belt fixing portion 74 is fixed to the base plate 41 . As shown in FIG. 3, the belt fixing portion 74 sandwiches and fixes the belt 73 . As a result, the hooking member 30 and the first moving mechanism 40 move vertically as the belt 73 rotates. The guide rail 75 is a member that guides the first moving mechanism 40 so as not to swing in the horizontal direction when the first moving mechanism 40 moves in the vertical direction.

The yarn end drawing device 22 includes a second sensor stay 56, a second magnet sensor 57, and a second magnet 58 as components for detecting that the hooking member 30 is at the upper end position.

The second sensor stay 56 is arranged above the first moving mechanism 40 . The second sensor stay 56 is fixed so that its position does not change even if the belt 73 moves vertically. The second magnet sensor 57 is attached to the second sensor stay 56 . The second magnet sensor 57 transmits a detection signal indicating that fact to the control device 100 when it receives a magnetic force equal to or greater than the threshold value. A second magnet 58 is fixed to the base plate 41 .

With this configuration, the base plate 41 rises and the second magnet 58 approaches the second magnet sensor 57 , so that the second magnet sensor 57 transmits a detection signal to the control device 100 . As a result, it is possible to prevent the base plate 41 from excessively moving upward.

The yarn end drawing device 22 includes a bobbin rotating device 80 that rotates the yarn supplying bobbin 5 when drawing out the yarn end. The bobbin rotating device 80 includes a drive roller 81 and a third motor 82 .

The drive roller 81 is configured to contact the tray 6 stopped in front of the yarn end drawing device 22 . The third motor 82 is a stepping motor. The third motor 82 rotates the output shaft at a rotation angle, a rotation direction, and a rotation speed according to the pulse signal received from the third motor control section 83 .

The driving roller 81 is rotated by the rotational driving force generated by the third motor 82 . With this configuration, the tray 6 and the yarn feeding bobbin 5 can be rotated. The rotational center of rotation of the tray 6 and the yarn feeding bobbin 5 is the same as the axial position of the tray 6 and the axial position of the yarn feeding bobbin 5 .

Next, the processing performed by the control device 100 by controlling the yarn end drawing device 22 will be described with reference to FIGS. 5 to 9. FIG.

First, the control device 100 determines whether or not the yarn supplying bobbin 5 has arrived at the yarn end drawing device 22 (S101). For example, an optical sensor for detecting the yarn feeding bobbin 5 or the tray 6 is arranged near the yarn end drawing device 22, and the control device 100 makes this determination based on the detection result of the optical sensor. A contact sensor may be used instead of the optical sensor.

When the yarn feeding bobbin 5 reaches the yarn end drawing device 22, the control device 100 transmits a command to the third motor control section 83 to rotate the yarn feeding bobbin 5 in the winding direction (S102). The winding direction is the direction in which the yarn is wound around the yarn supplying bobbin 5 .

Next, the control device 100 transmits a command to move the hooking member 30 to the operating position to the first motor control section 32 (S103). The first motor control unit 32 generates a pulse signal to rotate the first motor 31 based on this command and a preset value. Thereby, as shown in FIG. 6, the hooking member 30 moves from the standby position to the operating position.

As the hooking member 30 approaches the rotating yarn supplying bobbin 5 , the backwind yarn 5 c spirally wound around the surface of the yarn layer 5 b is caught by the hooking member 30 . That is, the backwind yarn 5c can be hooked and captured.

Also, the bobbin preparation device 3 is supplied with yarn feeding bobbins 5 of various shapes. For example, when the type of yarn feeding bobbin 5 produced by the yarn feeding bobbin supply device 2 is changed, the shape of the yarn feeding bobbin 5 supplied to the bobbin preparation device 3 is switched. Since the hooking member 30 catches the backwind yarn 5 c on the surface of the yarn supplying bobbin 5 , the optimum operating position of the hooking member 30 differs depending on the shape of the yarn supplying bobbin 5 . For example, when positioning the operating position of the hooking member 30 mechanically, it is necessary to adjust the operating position according to the shape of the yarn feeding bobbin 5, which takes time.

In this regard, in this embodiment, an appropriate set value (that is, a pulse signal necessary for moving the hooking member 30 from the standby position to the operating position) is stored in advance according to the shape of the yarn feeding bobbin 5 . Accordingly, even if the shape of the yarn feeding bobbin 5 is changed, the hooking member 30 can be moved to an appropriate operating position simply by changing the setting of the control device 100 accordingly.

Next, the control device 100 transmits a command to move the hooking member 30 downward to the second motor control section 62 (S104). The second motor control unit 62 generates a pulse signal to rotate the second motor 61 based on this command and a preset value. As a result, the hooking member 30 moves downward as shown in FIG. Thereby, the backwind yarn 5c is cut. If the hooking member 30 does not have a blade, the backwind yarn 5c is peeled off from the yarn layer 5b.

Next, the control device 100 transmits a command to move the hooking member 30 to the standby position to the first motor control section 32 (S105). The first motor control unit 32 generates a pulse signal to rotate the first motor 31 based on this command and a preset value. As a result, the hooking member 30 moves from the operating position to the standby position.

However, when the hooking member 30 fails to cut the backwind yarn 5c, or when the hooking member 30 pulls off the backwind yarn 5c, the backwind yarn 5c is caught by the hooking member 30 and cannot be removed. Even if the first motor 31 is operated to return the hooking member 30 to the standby position, the hooking member 30 may not be returned to the standby position (hereinafter referred to as a locked state).

When the hooking member 30 is in the locked state, the yarn end drawing device 22 cannot continue processing. Therefore, the control device 100 performs control for canceling the locked state of the hooking member 30 .

First, the control device 100 determines whether or not the hooking member 30 is in the locked state (S106). In this embodiment, the control device 100 determines whether or not the hooking member 30 is in the locked state based on the detection result of the first magnet sensor 52 . When the hooking member 30 is not in the locked state, the first magnet sensor 52 detects the first magnet 53 after a predetermined period of time after the control device 100 executes the control to move the hooking member 30 to the standby position. However, when the hooking member 30 is in the locked state, the first magnet sensor 52 does not detect the first magnet 53 even after the predetermined time has passed. Therefore, the control device 100 determines whether or not the hooking member 30 is in the locked state based on whether or not the first magnet sensor 52 has detected the first magnet 53 after the predetermined time has elapsed.

When the control device 100 determines that the hooking member 30 is not in the locked state, the process of step S<b>101 is performed again to form a yarn end on a new yarn supplying bobbin 5 . When the control device 100 determines that the hooking member 30 is in the locked state, it transmits to the first motor control section 32 a command to bring the hooking member 30 closer to the yarn feeding bobbin 5 (S107). Based on this command, the first motor control section 32 rotates the first motor 31, so that the hooking member 30 is pressed against the yarn supplying bobbin 5 as shown in FIG.

As described above, the second contact portion 45a of the regulating arm 45 and the first contact portion 44a of the rear arm 44 are not fixed. Therefore, the hooking member 30 is pressed against the yarn supplying bobbin 5 by the biasing force of the coil spring 43 . As a result, the force with which the hooking member 30 is pressed against the yarn supplying bobbin 5 can be made weaker than when the first driving force of the first motor 31 is directly used to press the hooking member 30 against the yarn supplying bobbin 5 . As a result, deterioration of the quality of the yarn supplying bobbin 5 can be suppressed. Further, since the tension of the backwind yarn 5c can be weakened by pressing the hooking member 30 against the yarn supplying bobbin 5, the backwinding yarn 5c can be easily removed from the hooking member 30.例文帳に追加

Next, the control device 100 transmits a command to move the hooking member 30 downward to the second motor control section 62 (S108). The second motor control unit 62 rotates the second motor 61 based on this command, thereby moving the hooking member 30 downward. At the same time, the control device 100 transmits a command to the third motor control section 83 to rotate the yarn feeding bobbin 5 in the unwinding direction (S109). The unwinding direction is the direction in which the yarn is unwound from the yarn supplying bobbin 5 . Thereby, the backwind thread 5c can be removed from the hooking member 30 (FIG. 9). It should be noted that this yarn supplying bobbin 5 is conveyed to the storage path 13 because the yarn end drawing device 22 fails to draw out the yarn end.

Next, the control device 100 transmits a command to move the hooking member 30 to the standby position to the first motor control section 32 (S110). The first motor control unit 32 rotates the first motor 31 based on this command, so that the hooking member 30 returns to the standby position. After that, the control device 100 performs the process of step S101 again to form a yarn end on a new yarn supplying bobbin 5 . By performing the above processing, even when the hooking member 30 is locked, the locked state can be automatically canceled and the operation of the yarn end drawing device 22 can be continued.

The flowchart shown in FIG. 5 is an example, and as described below, some of the processes may be omitted, the contents of some of the processes may be changed, or new processes may be added.

For example, at least one of steps S107, S108, and S109 may be omitted. By omitting these processes, it is possible to shorten the time required for releasing the locked state. The order of steps S107, S108, S109, and S110 may be different, and at least two processes may be performed simultaneously. For example, the processes of steps S108 and S110 may be performed simultaneously to move the hooking member 30 obliquely rearward.

In this embodiment, it is not re-determined whether or not the locking state of the hooking member 30 is released, but it may be re-determined. That is, the control device 100 may perform the process of step S106 again after performing the process of step S110. Thus, after confirming that the hooking member 30 is unlocked, the yarn end can be formed on the new yarn supplying bobbin 5 . Note that the control device 100 may perform a process of calling an operator when the number of failures of the process of canceling the locked state of the hooking member 30 exceeds a threshold. As a result, it is possible to prevent the process of releasing the locked state of the hooking member 30 from being repeated.

Next, a second embodiment will be described with reference to FIG. In the following description, members that are the same as or similar to those in the above-described embodiment are denoted by the same reference numerals in the drawings, and their description may be omitted.

The second embodiment differs from the first embodiment in that a distance sensor 91 is provided. The distance sensor 91 is, for example, a laser sensor, and detects the distance to an object in front based on the time from when laser light is transmitted until when it is received. Distance sensor 91 is fixed to base plate 41 via mounting plate 90 . Therefore, even if the hooking member 30 moves back and forth, the distance sensor 91 does not move back and forth.

The distance sensor 91 faces forward and detects the distance to the yarn feeding bobbin 5 in front. Distance sensor 91 transmits the detection result to control device 100 . Control device 100 corrects the operating position of hooking member 30 based on the detection result received from distance sensor 91 .

The control device 100 compares the detection result of the distance sensor 91 with a reference value (the distance from the standard-shaped yarn feeding bobbin 5 to the distance sensor 91). If the detection result of the distance sensor 91 is smaller than the reference value, the surface of the yarn supplying bobbin 5 is close to the yarn end drawing device 22, so the control device 100 corrects the operating position of the hooking member 30 to the rear side. Conversely, if the detection result of the distance sensor 91 is greater than the reference value, the surface of the yarn supplying bobbin 5 is far from the yarn end drawing device 22, so the control device 100 corrects the operating position of the hooking member 30 forward. .

Also, the distance sensor 91 may be provided on the movable plate 46 . In this case, the detection result of the distance sensor 91 can be used to determine whether or not the hooking member 30 is locked (S106). That is, when the hooking member 30 is not in the locked state, the detection result of the distance sensor 91 gradually increases as the hooking member 30 moves toward the standby position. On the other hand, when the hooking member 30 is in the locked state, even if control is performed to move the hooking member 30 toward the standby position, the detection result of the distance sensor 91 does not change significantly. Therefore, based on the detection result of the distance sensor 91, the control device 100 can determine whether or not the hooking member 30 is in the locked state.

Next, with reference to FIG. 11, a third embodiment will be described.

The third embodiment differs from the first embodiment in that a load detector 92 is provided. The load detector 92 detects the load factor of the first motor 31 and transmits it to the control device 100 . The load factor is the ratio of generated torque to rated torque.

The detection result of the load detector 92 can be used to determine whether or not the hooking member 30 is locked (S106). After transmitting the instruction to move the hooking member 30 to the standby position in step S105, the control device 100 determines whether or not the load factor detected by the load detector 92 is equal to or greater than the threshold. The control device 100 determines that the hooking member 30 is in the locked state when the load factor detected by the load detector 92 is equal to or greater than the threshold.

As described above, the bobbin preparation device 3 of the above embodiment includes the hooking member 30, the first motor 31, the first motor control section 32, the first moving mechanism 40, the second motor 61, A second motor control unit 62 and a second moving mechanism 70 are provided. The hooking member 30 hooks the backwind yarn 5c wound around the surface of the yarn layer 5b of the yarn supplying bobbin 5 and cuts or peels it off. The first motor 31 generates a first driving force that moves the hooking member 30 in the horizontal direction. The first motor control section 32 controls the direction and amount of rotation of the first motor 31 . The first moving mechanism 40 uses the first driving force generated by the first motor 31 to horizontally move the hooking member 30 to approach or separate from the yarn feeding bobbin 5 . The second motor 61 generates a second driving force that moves the hooking member 30 in the vertical direction. The second motor control section 62 controls the direction and amount of rotation of the second motor 61 . The second moving mechanism 70 uses the second driving force generated by the second motor 61 to vertically move the hooking member 30 .

Accordingly, by controlling the direction and amount of rotation of at least one of the first motor 31 and the second motor 61, the movement of the hooking member 30 can be precisely controlled with a simple configuration. Further, the amount of movement of the hooking member 30 can be adjusted simply by changing the set value.

In the bobbin preparation device 3 of the above-described embodiment, the control device 100 that performs control to cancel the locked state when the hooking member 30 caught by the backwind yarn 5c cannot be separated from the yarn feeding bobbin 5 is provided. Prepare.

As a result, even when the hooking member 30 is locked, the locked state can be canceled without calling the operator.

In the bobbin preparation device 3 of the above embodiment, in the locked state, the control device 100 transmits a command to the second motor control section 62 to move the hooking member 30 downward.

As a result, the hooking member 30 can be pulled out from the backwind thread 5c, so there is a possibility that the locked state can be eliminated.

In the bobbin preparation device 3 of the above embodiment, in the locked state, the control device 100 sends a command to the first motor control section 32 to feed the hooking member 30 before moving the hooking member 30 downward. Push out to the thread bobbin 5 side.

As a result, the tension of the backwind thread 5c hooked on the hooking member 30 can be weakened, so that the locked state can be more reliably released.

The bobbin preparation device 3 of the above-described embodiment includes a bobbin rotation device 80 that rotates the yarn feeding bobbin 5 around the axial direction. In the locked state, the control device 100 sends a command to the bobbin rotating device 80 to rotate the yarn feeding bobbin 5 in the direction opposite to the direction in which the backwind yarn 5c is cut or peeled off.

As a result, the backwind thread 5c hooked on the hooking member 30 moves in the direction of being detached from the hooking member 30, so there is a possibility that the locked state can be released.

In the bobbin preparation device 3 of the above-described embodiment, in the locked state, the control device 100 sends a command to the second motor control section 62 to move the hooking member 30 downward, and commands the bobbin rotation device 80. is sent to rotate the yarn feeding bobbin 5 in the opposite direction to the direction in which the backwind yarn 5c is cut or peeled off.

As a result, the hooking member 30 moves downward and the backwind yarn 5c hooked on the hooking member 30 moves upward, so that the locked state can be released more reliably.

The bobbin preparation device 3 of the above embodiment includes a detector (first magnet sensor 52, distance sensor 91, load detector 92) that detects the position or movement of the hooking member 30 by the first moving mechanism 40. FIG.

Thereby, the hooking member 30 can be controlled based on the position of the hooking member 30 .

In the bobbin preparation device 3 of the above-described embodiment, the hooking member 30 has an operation position for cutting or peeling off the backwind yarn 5c of the yarn supplying bobbin 5, and an operation position for cutting or peeling off the backwind yarn 5c, and then the next yarn supplying bobbin after cutting or peeling off the backwind yarn 5c. and a standby position where it waits until 5 is supplied. The first magnet sensor 52, the distance sensor 91, or the load detector 92 detects whether or not the hooking member 30 is at the standby position.

As a result, for example, even though the hooking member 30 is controlled to return to the standby position, if the first magnet sensor 52, the distance sensor 91, or the load detector 92 does not detect that, the hooking member 30 It can be assumed that it is in a locked state.

In the bobbin preparation device 3 of the second embodiment, the detector is a distance sensor 91 that detects the distance to the yarn feeding bobbin 5 .

Thereby, the hooking member 30 can be moved to an appropriate position based on the shape of the yarn supplying bobbin 5 . Alternatively, when the distance sensor 91 moves integrally with the hooking member 30, based on the detection result of the distance sensor 91, it can be determined whether the hooking member 30 is in the locked state.

In the bobbin preparation device 3 of the third embodiment, the detector is the load detector 92 that detects the load of the first motor 31 .

As a result, for example, when the load of the first motor increases significantly when the hooking member 30 is controlled to return to the standby position, it can be estimated that the hooking member 30 is in the locked state.

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

In the above embodiment, the first motor 31, the second motor 61, and the third motor 82 are stepping motors, but other motors (for example, servo motors) can be used as long as the direction and amount of rotation can be controlled. may

In the above embodiment, the control device 100 of the bobbin preparation device 3 performs the processing shown in FIG. .

Although the first moving mechanism 40 of the above-described embodiment moves the hooking member 30 in an arc shape, it may be configured to move the hooking member 30 in a straight line. Further, instead of moving the hooking member 30 using an arm, a configuration may be used in which the hooking member 30 is moved using a ball screw or the like. Similarly, the second moving mechanism 70 may also be configured to move the base plate 41 (hooking member 30) using a ball screw or the like instead of using a belt and pulleys.

In the above embodiment, the hooking member 30 is brought closer to the yarn feeding bobbin 5 by the biasing force of the coil spring 43 , but the first driving force of the first motor 31 is directly used to bring the hooking member 30 closer to the yarn feeding bobbin 5 . You may let

In the above-described embodiment, the yarn supplying bobbin supply type winder 1 has the configuration of the yarn supplying bobbin supply type winder 1 including the yarn supplying bobbin supply device 2, the bobbin preparation device 3, and the automatic winder (winding device) 4. As described above, a spinning winder provided with a spinning machine instead of the yarn feeding bobbin supply device 2 may be used.

In the above embodiment, an automatic winder was described as an example of the winding device, but other devices than the automatic winder may be used as long as they are configured to wind the yarn.

1 yarn supplying bobbin supply type winder 2 yarn supplying bobbin supply device 3 bobbin preparation device 4 automatic winder (winding device)
22 yarn end drawing device 30 hooking member 31 first motor 32 first motor control section 40 first moving mechanism 52 first magnet sensor (detection section)
61 second motor 62 second motor control section 70 second moving mechanism 91 distance sensor (detection section)
92 load detector (detector)
100 control device (elimination control unit)

Claims (11)

In a bobbin preparation device that prepares a yarn supplying bobbin for winding yarn by a winding device,
a hooking member that hooks and cuts or peels off the backwind yarn wound around the surface of the yarn layer of the yarn supplying bobbin;
a first motor for generating a first driving force for horizontally moving the hooking member;
a first motor control unit that controls the direction and amount of rotation of the first motor;
a first moving mechanism that moves the hooking member in the horizontal direction by using the first driving force generated by the first motor to approach or separate from the yarn feeding bobbin;
a second motor for generating a second driving force for moving the hooking member in the vertical direction;
a second motor control unit that controls the direction and amount of rotation of the second motor;
a second moving mechanism for moving the hooking member in a vertical direction using the second driving force generated by the second motor;
A bobbin preparation device comprising: The bobbin preparation device of claim 1, comprising:
A bobbin preparation device comprising a release control section that performs control to release the locked state in a locked state in which the hooking member caught by the backwind yarn cannot be separated from the yarn feeding bobbin. The bobbin preparation device of claim 2, comprising:
The bobbin preparation device, wherein, in the locked state, the cancellation control section transmits a command to the second motor control section to move the hooking member downward. The bobbin preparation device of claim 3, comprising:
In the locked state, the cancellation control section transmits a command to the first motor control section to push out the hooking member toward the yarn feeding bobbin before moving the hooking member downward. A bobbin preparation device characterized by: The bobbin preparation device of claim 2, comprising:
a bobbin rotating device that rotates the yarn feeding bobbin about an axial direction as a rotation center;
In the locked state, the release control unit transmits a command to the bobbin rotating device to rotate the yarn feeding bobbin in a direction opposite to the direction in which the backwind yarn is cut or peeled off. preparation equipment. A bobbin preparation device according to claim 5, comprising:
In the locked state, the cancellation control section transmits a command to the first motor control section to push out the hooking member toward the yarn feeding bobbin before rotating the yarn feeding bobbin in the reverse direction. A bobbin preparation device characterized by: The bobbin preparation device of claim 2, comprising:
a bobbin rotating device that rotates the yarn feeding bobbin about an axial direction as a rotation center;
In the locked state, the cancellation control section transmits a command to the second motor control section to move the hooking member downward, and transmits a command to the bobbin rotating device to move the backwind yarn. A bobbin preparation device characterized by rotating the yarn feeding bobbin in a direction opposite to the direction in which the yarn is cut or peeled off. A bobbin preparation device according to any one of claims 1 to 7,
A bobbin preparation device comprising a detection unit that detects the position or movement of the hooking member by the first moving mechanism. A bobbin preparation device according to claim 8, comprising:
The hooking member has an operating position for cutting or peeling off the backwind yarn of the yarn supplying bobbin and a standby position for waiting until the next yarn supplying bobbin is supplied after cutting or peeling off the backwind yarn. , and is movable between
The bobbin preparation device, wherein the detection unit detects whether or not the hooking member is at the standby position. A bobbin preparation device according to claim 8, comprising:
The bobbin preparation device, wherein the detection unit is a distance sensor that detects a distance to the yarn feeding bobbin. A bobbin preparation device according to claim 8, comprising:
The bobbin preparation device, wherein the detection unit is a load detector that detects the load of the first motor.

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