JP2021109762A - Winding device and winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep the tension of a wire wound around a winding core constant even when the winding speed of the wire rod in the winding core fluctuates remarkably.
SOLUTION: A winding device 10 has a winding core 12, a wire rod feeding mechanism 21 for supplying a wire rod 13 to the winding core 12, and a tension for applying tension to the wire rod 13 supplied from the wire rod feeding mechanism 21 to the winding core 12. The winding core rotating means 14 and the winding core rotating means 14 for rotating the winding core 12 and winding the wire rod 13 supplied from the wire rod feeding mechanism 21 and to which tension is applied by the tension device 31 around the winding core 12. A controller 46 is provided, and an accumulator mechanism 60 for decelerating or accelerating the speed of the wire drawn from the wire feeding mechanism is provided, and the controller controls the average winding speed of the wire wound around the rotating core. The wire rod feeding mechanism is controlled so as to unwind the wire rod, and the accumulator mechanism is controlled so that the speed of the wire rod unwound from the wire rod feeding mechanism is equal to the winding speed of the wire rod wound by the rotating winding core. It is a feature.
[Selection diagram] Fig. 1

Description

The present invention relates to a winding device and a winding method for winding a wire rod to which a predetermined tension is applied around a winding core.

Conventionally, as a tension device provided in a winding machine for forming a coil by winding a wire rod around a winding core and applying a predetermined tension to the wire rod, as shown in FIG. 15, the wire rod unwound from the wire rod source. Passes through a capstan 3 around which 2 is hung, a tension arm 4 that can rotate around a rotation fulcrum 4a at the base end, and a wire rod 2 attached to the tip of the tension arm 4 and unwound from the capstan 3. The tension arm 4 is subjected to an elastic force according to the rotation angle at a predetermined position between the guide pulley 5 which is turned and guided to the winding machine after being rotated and the rotation fulcrum 4a of the tension arm 4 and the guide pulley 5. The elastic member 6, the potentiometer 7 that detects the rotation angle of the tension arm 4, and the capstan 3 that controls the rotation of the capstan 3 so that the rotation angle detected by the potentiometer 7 becomes a predetermined angle. A device including a feeding motor 8 for controlling the speed of a wire rod 2 from 3 toward a winding machine (not shown) via a guide pulley 5 is known (see, for example, Patent Document 1).

Here, the wire rod 2 is guided to the winding machine via the guide pulley 5 and wound around the winding core thereof, but the feeding speed of the wire rod 2 unwound from this conventional tension device is the rotation of the tension arm 4. The rotation of the capstan 3 is controlled so that the moving angle becomes a predetermined angle, the feeding speed of the wire rod 2 keeps a balance with the winding speed of the wire rod wound by the winding core, and the wire rod 2 is elastic by the elastic member 6. A predetermined tension is applied by the tension arm 4 to which the force is applied.

If the winding speed of the wire wound by the winding core fluctuates from this state, the tension of the wire rod 2 fluctuates, and this fluctuation is absorbed by the tension arm 4 changing the rotation angle. Then, since the change in the rotation angle of the tension arm 4 is fed back to the rotation of the capstan 3 via the potentiometer 7, the feeding motor 8 immediately makes the rotation angle of the tension arm 4 a predetermined angle. It is said that the rotation speed of the capstan 3 is adjusted and the tension applied to the wire rod 2 is returned to a predetermined value.

JP-A-2000-128433)

As described above, in the conventional tension device shown in FIG. 15, the tension arm 4 absorbs the fluctuation of the winding speed of the wire rod 2 by changing the rotation angle. However, when the wire rod 2 is wound around a winding core having a different outer diameter, for example, a winding core having a rectangular cross-sectional shape and whose short side and long side are significantly different from each other. The speed of the wire rod 2 wound around the winding core varies remarkably periodically while the winding core makes one rotation. Then, the rotation angle of the tension arm 4 that absorbs the fluctuation of the speed is remarkably increased.

That is, when the wire rod 2 unwound from the capstan 3 is turned and guided to the winding machine in the guide pulley 5 so as to bend at a substantially right angle to the tension arm as shown in FIG. In the case where the winding speed of the wire rod 2 in the winding machine increases and the wire rod 2 is wound by an extra predetermined length L1 in a unit time, the guide pulley 5 is also wound by the extra predetermined length. Only L1 is pulled toward the winding machine side as shown by the solid line arrow and moves. Then, the tension arm 4 provided with the guide pulley 5 at the tip rotates against the elastic force of the elastic member 6, and allows the guide pulley 5 at the tip to move by a predetermined length L1. It will be.

However, if the speed of the wire 2 wound around the winding core in the winding machine fluctuates significantly and the speed increases remarkably at one time, the guide pulley 5 is pulled vigorously by the wire 2, and the speed is increased. The rotation of the tension arm 4 provided at the tip of the guide pulley 5 to absorb the fluctuation cannot follow the momentum of the pulled guide pulley 5, and the guide pulley 5 and the winding core provided at the tip of the tension arm 4 cannot follow the momentum. A tension exceeding the elastic force exerted by the elastic member 6 is temporarily applied to the wire rod 2 between the wire rod 2 and the wire rod 2.

On the contrary, when the winding speed of the wire rod 2 in the winding machine decreases and the amount of the wire rod 2 wound by a predetermined length L2 in a unit time decreases, the guide pulley 5 is moved by the elastic force of the elastic member 6. The tension arm 4 provided with the guide pulley 5 at the tip is rotated by the elastic force of the elastic member 6, and the tip of the tension arm 4 is moved in a direction away from the winding machine by the reduced predetermined length L2. As shown by the broken line arrow, the guide pulley 5 in the above is allowed to move by a predetermined length L2.

However, if the speed of the wire 2 wound around the winding core in the winding machine fluctuates significantly and the speed of the wire 2 wound around the winding core in the winding machine drops significantly at one time, the wire 2 guides the wire. The force that pulls the pulley 5 is significantly reduced at one time, and the tension arm 4 that is provided at the tip of the guide pulley 5 and absorbs the fluctuation cannot follow the rotation of the tension arm 4 due to its inertial force even by the elastic force of the elastic member 6. , The wire rod 2 between the guide pulley 5 provided at the tip of the tension arm 4 and the winding core may be temporarily loosened. Therefore, in the conventional tension device, when the speed of the wire rod 2 wound around the winding core having a different diameter in the winding machine fluctuates significantly, the tension of the wire rod 2 sent to the winding machine is kept constant. There was a problem that it was difficult.

An object of the present invention is to provide a winding device and a winding method capable of keeping the tension of the wire wound around the winding core constant even when the winding speed of the wire in the winding core fluctuates significantly. It is in.

The present invention comprises a winding core, a wire feeding mechanism for supplying a wire to the winding core, a tension device for applying tension to the wire supplied from the wire feeding mechanism to the winding core, and a wire feeding mechanism for rotating the winding core. This is an improvement of a winding device including a winding core rotating means for winding a wire rod supplied and tensioned by a winding core around a winding core, and a controller for controlling the winding core rotating means.

Its characteristic configuration is that an accumulator mechanism is provided to slow down or accelerate the speed of the wire drawn from the wire feeding mechanism, and the controller winds the wire at the average winding speed of the wire wound around the rotating core. The wire rod feeding mechanism is controlled so as to be unwound, and the accumulator mechanism is controlled so that the speed of the wire rod unwound from the wire rod feeding mechanism is equal to the winding speed of the wire rod wound by the rotating winding core.

In this case, the accumulator mechanism includes a pair of fixed rollers provided along the movement path of the wire, a movable roller that passes between the pair of fixed rollers and can move in a direction intersecting the movement path of the wire. It can be equipped with a servomotor that moves the movable roller.

Further, when the winding speed of the wire wound around the rotating winding core is provided and a storage means for storing the calculated winding speed and the calculated average winding speed is provided, the controller is used in the storage means. The wire rod feeding mechanism is controlled so as to supply the wire rod according to the stored calculated average winding speed, and the controller decelerates or increases the speed of the wire rod unwound from the wire rod feeding mechanism and stores the calculated winding in the storage means. The accumulator rate mechanism will be controlled so that the taking speed will be obtained.

On the other hand, when a storage means for storing information about the winding core and an arithmetic circuit for calculating the winding speed and the average winding speed of the wire wound around the winding core from the information about the winding core are provided, the controller is an arithmetic circuit. Controls the wire rod unwinding mechanism so that the wire rod is supplied according to the calculated average winding speed calculated by The accumulator rate mechanism will be controlled so as to be the speed.

Further, an accumulator rate mechanism is provided between the wire rod feeding mechanism and the tension device, and a feeding speed detecting means for detecting the speed of the wire rod being fed from the accumulating mechanism toward the tension device and a winding core passing through the tension device are provided. When provided with a take-up speed detecting means for detecting the speed of the wire toward, the controller measures the state of the speed change of the take-up speed by the detection output of the take-up speed detection means and the actual measurement take-out by the detection output of the take-out speed detection means. It is preferable to control the accumulator mechanism so as to eliminate the deviation in the time axis direction in the state of velocity change.

On the other hand, another present invention is an improvement of a winding method in which a wire rod is rotated and a wire rod supplied from a wire rod feeding mechanism and tensioned by a tension device is wound around the winding core.

Its characteristic point is that the wire rod is unwound from the wire rod feeding mechanism at the average winding speed of the wire rod wound around the rotating winding core, and the speed of the wire rod unwound from the wire rod feeding mechanism is decelerated or accelerated to rotate. It is located at the same level as the winding speed of the wire wound around.

In this case, the wire rod in the middle of the pair of fixed rollers provided along the wire rod movement path is hung around the movable roller, and the movable roller is moved in the direction intersecting the wire rod movement path to reduce the speed of the wire rod or reduce the speed of the wire rod. It is preferable to accelerate.

Further, it is the winding speed of the wire wound around the rotating winding core, and the calculated winding speed and the calculated average winding speed calculated in advance are stored in the storage means, and the calculated average winding stored in the storage means. It is preferable to control the wire rod feeding mechanism so as to supply the wire rod according to the take-up speed, and to reduce or accelerate the speed of the wire rod unwound from the wire rod feeding mechanism so as to have the calculated winding speed stored in the storage means.

When the information about the winding core is stored in the storage means, the winding speed and the average winding speed of the wire wound around the winding core are calculated from the information about the winding core, and the calculated average winding speed calculated by the arithmetic circuit is calculated. It is also possible to control the wire rod feeding mechanism so as to supply the wire rod according to the speed, and reduce or accelerate the speed of the wire rod unwound from the wire rod feeding mechanism so as to have the calculated winding speed calculated by the arithmetic circuit.

Further, the wire rod drawn from the wire rod feeding mechanism toward the tension device is accelerated or decelerated, and the wire rod feeding speed toward the tension device after accelerating or decelerating and the wire rod passing through the tension device and being wound around the winding core It is also possible to detect both winding speeds and accelerate or decelerate the wire so as to eliminate the time axis deviation between the detected speed change state of the measured winding speed and the speed change state of the measured winding speed. ..

In the winding device and winding method of the present invention, the wire is unwound from the wire unwinding mechanism at a constant speed, but the unwinding speed is set as the average winding speed, and then decelerated or accelerated to be wound around the winding core. Since the speed is equal to the winding speed of the wire, even if the tension device is equipped with something like a guide pulley that hangs around the wire and moves by an elastic member, the wire of the wire such as the guide pulley. It is possible to prevent movement due to speed fluctuations.

Then, since the tension fluctuation of the wire rod due to the movement of the guide pulley is avoided, even if the speed of the wire rod wound around the winding core having a different diameter fluctuates significantly, the wire is wound around the winding core. It is possible to keep the tension of the wire to be turned constant.

It is a front view which shows the winding apparatus in embodiment of this invention. It is a top view of the winding device. It is a figure which shows the state which the wire rod is decelerated by the accumulator rate mechanism. It is a figure which shows the state which the wire rod is accelerated by the accumulator rate mechanism. It is a figure which shows the relationship between the calculated winding speed, the measured feeding speed, and the measured winding speed. It is a figure corresponding to FIG. 5 which shows the case where the deviation in the time axis direction occurs between the actually measured feeding speed and the actually measured winding speed. It is a figure which shows the case where the measured winding speed is faster than the calculated winding speed. It is a figure which shows the case where the measured winding speed is slower than the calculated winding speed. It is a figure which shows the relationship between the rotation angle of the winding core, and the speed of a wire rod wound around it. FIG. 9 is a diagram corresponding to FIG. 9 showing the relationship between the angle of the winding core when the second layer wire is wound around the winding core and the speed of the wire wound around the angle of the winding core. It is a figure corresponding to FIG. 10 which shows the relationship between the angle of the winding core when the 3rd layer wire is wound around the winding core, and the speed of the wire wound around it. It is an enlarged view of the part A of FIG. 2 which shows the state which the wire rod is wound around the winding core to the 2nd layer. It is a figure corresponding to FIG. 12 which shows the state which the wire rod is wound around the winding core to the 3rd layer. It is a front view corresponding to FIG. 1 which shows another winding apparatus of this invention. It is a front view which shows the conventional tension device.

Next, a mode for carrying out the present invention will be described in detail with reference to the drawings.

1 and 2 show the winding device 10 according to the present invention. The winding device 10 includes a winding machine 11 that rotates a winding core 12 and winds a wire rod 13 around the winding core 12, a wire rod feeding mechanism 21 that supplies the wire rod 13 to the winding core 12, and a wire rod feeding mechanism 21 thereof. A tension device 31 for applying tension to the wire rod 13 supplied from the mechanism 21 to the winding core 12 is provided.

Here, three axes of X, Y, and Z orthogonal to each other are set, the X axis extends in the horizontal front-back direction, the Y axis extends in the horizontal horizontal direction, the Z axis extends in the vertical direction, and the wire rod 13 is fed out in the Y-axis direction. As a device, the winding device 10 of the present invention will be described.

In the winding machine 11 of this embodiment, the winding motor 14 serves as a winding core rotating means on the substrate 15a erected on the upper surface of the main body 15 installed at the installation location, and the rotating shaft 14a is rotated in the X-axis direction. The winding motor 14 is configured to rotate the winding core 12 at a constant speed.

In this winding machine 11, the winding core 12 is coaxially attached to the rotating shaft 14a of the winding motor 14, the winding core 12 is rotated around the shaft, and tension is supplied from the wire rod feeding mechanism 21. The wire rod 13 to which tension is applied by the device 31 is configured to be wound around the winding core 12. Reference numeral 16 in FIG. 1 is a rotation angle sensor 16 that detects the rotation angle of the winding core 12.

As shown in FIG. 1, at the installation location where the winding machine 11 is provided, a base 17 is provided at a distance from the winding machine 11, and the base 17 can be easily moved to the base 17. A roller 17a and a leg member 17b that is immovably fixed to the installation location are provided. Then, the base 17 is installed at a position deviated from the winding machine 11 in the Y-axis direction.

The wire rod 13 in this embodiment is a coated copper wire having a circular or square cross section used for manufacturing a coil of an electric component, and the wire rod 13 is wound around a relatively large reel 18 to store a wire. The reel 18 is arranged as a wire rod source at an end separated from the winding machine 11 of the base 17. A housing 19 provided with a controller 46, which will be described later, is mounted on the base 17 so as to be adjacent to the reel 18, and the wire rod feeding mechanism 21 is mounted on the base 17 via the housing 19.

Specifically, the wire rod feeding mechanism 21 is provided on a flat plate 22 attached to the housing 19 so as to cover the reel 18 from the upper side in the Z-axis direction, and the flat plate 22 is formed with a through hole 22a through which the wire rod 13 can penetrate. Will be done. A base plate 23 is erected in the vicinity of the through hole 22a of the flat plate 22, and a wire rod 13 that penetrates the through hole 22a and extends in the Z-axis direction is sandwiched between the base plate 23 from both sides in the Y-axis direction. A plurality of small rollers 23a for taking a curl are provided.

Further, in this embodiment, the wire rod feeding mechanism 21 for feeding the wire rod 13 toward the winding machine 11 is a capstan 24 in which the wire rod 13 whose winding habit is taken by a plurality of small rollers 23a is hung around and turned. And a feeding motor 26 in which the rotating shaft 26a is attached to the base plate 23 in the X-axis direction and the capstan 24 is attached to the rotating shaft 26a.

The wire rod 13 is hung around the capstan 24 at least once, and when the feeding motor 26 is driven to rotate the capstan 24, the wire rod 13 unwound from the reel 18 is pulled up and newly hung, and has already been hung. The wire rod 13 that is hung is unwound from the capstan 24 and unwound toward the winding machine 11.

A vertical plate 30 extends in the Y-axis direction in the housing 19 between the wire rod feeding mechanism 21 and the winding machine 11, and the wire rod 13 supplied from the wire rod feeding mechanism 21 to the winding core 12 is provided on the vertical plate 30. A tension device 31 for applying tension is provided.

The vertical plate 30 has a first turning pulley 32 that makes the wire 13 turned by the capstan 24 horizontal and directs it in the direction of the winding machine 11, and a wire 13 that faces the winding machine 11 by the first turning pulley 32. A second turning pulley 33 is provided. As the first and second turning pulleys 32 and 33 in this embodiment, those having a relatively large diameter are used in order to facilitate the rotation of the wire rod 13.

The tension device 31 includes a guide pulley 34 around which the wire rod 13 is fed from the wire rod feeding mechanism 21 and is hung by the second turning pulley 33 in a direction away from the winding machine 11, and a direction in which tension is applied to the wire rod 13. That is, it includes an elastic member 35 that urges the guide pulley 34 in a direction away from the winding machine 11 and applies tension to the wire rod 13 according to the position of the guide pulley 34.

That is, a rail 36 is provided on the vertical plate 30 so as to extend in the Y-axis direction, and a support base 37 that rotatably supports the guide pulley 34 is provided on the rail 36 so as to be movable in the Y-axis direction. The guide pulley 34 is such that the wire rod 13 unwound from the wire rod feeding mechanism 21 is hung around, and in this embodiment, the wire rod 13 turned by the second turning pulley 33 is hung around. ..

Then, the vertical plate 30 is provided with an elastic member 35 that urges the guide pulley 34 in a direction away from the winding machine 11. In this embodiment, the elastic member is composed of a pair of coil springs 35, 35, one end of which is attached to the support base 37, and the other end is separated from the winding machine 11 in the direction away from the movable body 41 (FIG. 1). Can be installed.

Since the pair of coil springs 35, 35 urges the support base 37 in a direction away from the winding machine 11, tension corresponding to the position of the guide pulley 34 pivotally supported by the support base 37 in the Y-axis direction is provided. Is applied to the wire rod 13 that is hung around the guide pulley 34 and heads for the winding machine 11.

The urging force of the coil springs 35, 35 against the guide pulley 34 is adjusted by the tension adjusting mechanism 40. The tension adjusting mechanism 40 includes a rail 42 provided on the vertical plate 30 in parallel with the coil springs 35 and 35 to movably support the movable body 41 in the Y-axis direction, and a movable body movably mounted on the rail 42. A male screw 43 screwed into 41 and pivotally supported by the vertical plate 30 and an adjustment knob 44 for rotating the male screw 43 are provided.

Then, since the other ends of the coil springs 35 and 35 whose one end is attached to the support base 37 are connected to the movable body 41, the tension of the coil springs 35 and 35 is adjusted by rotating the adjustment knob 44 to twist the male screw 43. The adjustment is made by rotating the movable body 41 and bringing the movable body 41 into contact with the winding machine 11.

Here, reference numeral 45 in FIG. 1 is a position sensor 45 that detects the position of the guide pulley 34 in the Y-axis direction, and its detection output is connected to the input of the controller 46 described later.

The tension of the coil springs 35 and 35 is adjusted by the tension adjusting mechanism 40 as an initial setting before starting the winding, and is performed during the winding in order to make the tension applied to the wire rod 13 constant. There is no such thing.

Further, the winding machine 11 in the winding device 10 of the present invention rotates the winding core 12 around the axis to wind the wire rod 13 around the winding core 12, and the winding according to this embodiment. The core 12 has a winding body portion 12a around which the wire rod 13 is wound, and a flange portion 12b provided on both end faces of the winding body portion 12a to regulate the winding width of the wire rod 13. The winding core 12 is coaxially attached to the rotating shaft 14a of the winding motor 14 which is the winding core rotating means, and when the winding motor 14 is rotationally driven, the winding core 12 is centered on the shaft. It is configured to rotate. In the present embodiment, the case where the cross-sectional shape of the winding body portion 12a is rectangular is shown (FIGS. 9 to 11).

Further, the winding machine 11 is provided with a guide mechanism 51 that feeds the wire rod 13 wound around the winding core 12 in the direction of the rotation axis. The guide mechanism 51 is provided on the substrate 15a in parallel with the rotation axis of the winding core 12, and is provided so as to be movable in the axial direction. A support pin 52 and a wire rod 13 attached to the tip of the support pin 52 are wound. A guide member 53 that limits the axial movement of the core 12 and a guide motor 54 (FIG. 2) that moves the support pin 52 in the axial direction are provided.

As shown in FIG. 2, the guide motor 54 is mounted so that its rotation shaft 54a is adjacent to the support pin 52 and parallel to the support pin 52, and a ball screw 55 is coaxially provided on the rotation shaft 54a. Be done. Then, the female screw member 56 screwed into the ball screw 55 is attached to the base end of the support pin 52.

Therefore, when the guide motor 54 is driven to rotate the ball screw 55, the support pin 52 moves in the axial direction together with the female screw member 56 that is screwed and moved to the ball screw 55, and the guide member 53 provided at the tip thereof is moved. It is configured to move the winding core 12 in the direction of the rotation axis. The guide member 53 is configured to sandwich the wire rod 13 from both sides of the winding core 12 in the rotation axis direction and limit the passing position of the wire rod 13 in the rotation axis direction (FIGS. 12 and 13).

As shown in FIG. 1, the winding device 10 includes an accumulator mechanism 60 for decelerating or accelerating the wire rod 13 unwound from the wire rod feeding mechanism 21 at a predetermined speed. In this embodiment, a case where the wire rod feeding mechanism 21 and the tension device 31 are provided is shown, and in the figure, a case where the accumulator mechanism 60 is provided on the vertical plate 30 is shown.

The accumulator mechanism 60 in the figure passes between a pair of fixed rollers 61a and 61b provided along the transport path of the wire rod 13 and the pair of fixed rollers 61a and 61b and intersects the transport path of the wire rod 13. Direction, in this embodiment, a movable roller 63 that can move in the vertical direction (Z-axis direction) and a servomotor 64 that moves the movable roller 63 are provided.

In this embodiment, a pair of fixed rollers 61a and 61b are provided on the vertical plate 30 along the wire rod 13 which is fed out from the wire rod feeding mechanism 21 and horizontally turned by the first turning pulley 32. The vertical plate 30 is provided with a ball screw 66 extending in the vertical direction so as to penetrate the center of the pair of fixed rollers 61a and 61b, and the rotation axis of the servomotor 64 is the ball screw 66 so that the ball screw 66 can be rotated. Is connected to. A movable base 67 is screwed into the ball screw 66, and a movable roller 63 is pivotally supported by the movable base 67. Then, the control output of the controller 46 is connected to the servomotor 64.

In this accumulator mechanism 60, when the servomotor 64 is driven to rotate the ball screw 66 based on a command from the controller 46, the movable base 67 screwed therein moves in the vertical direction together with the movable roller 63. become. The wire rod 13 that is turned by the first turning pulley 32 and heads in the horizontal direction is passed under the pair of fixed rollers 61a and 61b, and the wire rod 13 between the pair of fixed rollers 61a and 61b is movable above it. It is hung on the roller 63 from above.

Therefore, as shown in FIG. 3, when the servomotor 64 is driven and the movable roller 63 rises as shown by the broken line arrow, the vertical distance between the pair of fixed rollers 61a and 61b and the movable roller 63 increases. Then, the wire rod 13 having a length twice the vertical distance between the pair of fixed rollers 61a and 61b and the movable roller 63 is stored between the pair of fixed rollers 61a and 61b. Therefore, when the movable roller 63 is in the process of ascending, even if the wire rod 13 is fed out from the wire rod feeding mechanism 21 at a constant speed, a part of the wire rod 13 is stored between the pair of fixed rollers 61a and 61b. 13 will decelerate and the speed will decrease.

On the contrary, as shown in FIG. 4, when the servomotor 64 is driven so that the movable roller 63 descends, the vertical distance between the pair of fixed rollers 61a and 61b and the movable roller 63 is shortened, and the stored wire rod 13 is discharged. It will be. Therefore, when the movable roller 63 is in the process of descending as shown by the broken line arrow, even if the wire rod 13 is fed out from the wire rod feeding mechanism 21 at a constant speed, the wire rod 13 discharged to the wire rod 13 is added to the wire rod 13. Will accelerate and its speed will increase.

Further, the winding device 10 passes through the accumulator mechanism 60 and the feeding speed detecting means 70 for detecting the speed of the wire rod 13 moving toward the tension device 31, and the winding core 12 passing through the tension device 31. A winding speed detecting means 80 for detecting the speed of the wire rod 13 toward the head is provided.

The winding speed detecting means 80 in this embodiment is provided on an auxiliary plate 82 erected at the end of the housing 19 on the winding machine 11 side, and is pivotally supported by the auxiliary plate 82 so as to sandwich the wire rod 13. A pair of rollers 81, 81 and a first encoder 83 for detecting the rotation angle of one of the rollers 81 are provided.

On the other hand, the feeding speed detecting means 70 in this embodiment is provided on the vertical plate 30 on the downstream side of the accumulator mechanism 60, and a pair of rollers 71, 71 pivotally supported on the vertical plate 30 so as to sandwich the wire rod 13. And a second encoder 73 that detects the rotation angle of either one of the rollers 71.

Further, the housing 19 houses a winding motor 14 constituting the winding core rotating means and a controller 46 for controlling the guide motor 54 in the guide mechanism 51. The controller 46 stores a CPU that controls the winding operation by the winding device 10 and a memory 46a that serves as a storage means for storing information and data necessary for the processing operation of the CPU. Is provided by connecting an input device 46b for inputting the information.

Therefore, the control output from the controller 46 is connected to the winding motor 14 and the guide motor 54, respectively, and the controller 46 drives the winding motor 14 to rotate the winding core 12 at a constant speed and for the guide. By controlling the motor 54 and moving the guide member 53 in the rotation axis direction of the winding core 12 by an amount corresponding to the outer diameter of the wire rod 13 each time the winding core 12 makes one rotation, the guide member 53 is supplied from the wire rod feeding mechanism 21. The wire rod 13 to which tension is applied by the tension device 31 is wound while being in close contact with the winding core 12, so that so-called aligned winding is possible (FIGS. 12 and 13).

Further, the detection output of the rotation angle sensor 16 is connected to the control input of the controller 46, and the controller 46 is configured so that the rotation angle of the winding core 12 rotating at a constant speed can always be recognized.

On the other hand, the feeding motor 26 in the wire rod feeding mechanism 21 is configured so that the rotation speed of the rotating shaft 26a can be changed, and the capstan 24 rotationally driven by the feeding motor 26 changes the rotation speed. The feeding speed of the wire rod 13 can be changed. Then, the control output of the controller 46 is also connected to the feeding motor 26 in the wire rod feeding mechanism 21, and the controller 46 has a speed equal to the average winding speed of the wire rod 13 wound around the rotating winding core 12. The wire rod feeding mechanism 21 is configured to be controlled together with the winding core rotating means 14 so as to supply the wire rod 13.

Then, the controller 46 controls the servomotor 64 in the accumulator mechanism 60 to decelerate or accelerate the wire rod 13 unwound from the wire rod feeding mechanism 21 at an average winding speed, and rotate the speed of the winding core 12 Is configured to be equal to the winding speed of the wire rod 13 to be wound.

Specifically, the controller 46 is provided with an arithmetic circuit 46c, and the arithmetic circuit 46c determines the winding speed of the wire rod 13 wound around the rotating winding core 12 according to the information and data stored in the memory 46a. It is configured so that the average take-up speed can be calculated. Then, the controller 46 controls the wire rod feeding mechanism 21 so as to supply the wire rod 13 according to the calculated average winding speed calculated by the arithmetic circuit 46c, and decelerates or increases the wire rod 13 unwound from the wire rod feeding mechanism 21. The accumulator mechanism 23 is configured to be controlled so that the calculated take-up speed is obtained by the arithmetic circuit 46c.

In this embodiment, since the feeding speed detecting means 70 and the speed detecting means 80 are provided, the detection outputs of the first and second encoders 83 and 73 are connected to the control input of the controller 46. Then, the controller 83 detects the actually measured feeding speed and the actually measured winding speed by them, and the speed of the wire rod 13 unwound from the wire rod feeding mechanism 21 and decelerated or accelerated by the accumulator mechanism 60 is wound around the winding core 12. Feedback control shall be performed so as to be equal to the winding speed of the wire rod 13 to be rotated.

Next, the winding method of the present invention using the winding device will be described.

The winding method of the present invention is a method in which the winding core 12 is rotated around the axis and the wire rod 13 supplied from the wire rod feeding mechanism 21 and to which tension is applied by the tension device 31 is wound around the winding core 12.

Since the winding device 10 is used, as shown in FIG. 1, the wire rod 13 is wound around the reel 18 and stored, and the wire rod 13 unwound from the reel 18 which is the wire rod source is the through hole 22a of the flat plate 22. After penetrating the reel, the winding habit is taken by a plurality of small rollers 23a, and the reel is wound around a capstan 24 constituting the wire rod feeding mechanism 21.

Then, the wire rod 13 extending from the capstan 24 is turned by the first turning pulley 32 and heads in the horizontal direction, and the wire rod 13 is passed under the pair of fixed rollers 61a and 61b in the accumulator mechanism 60. Then, the wire rod 13 between the pair of fixed rollers 61a and 61b is hung from above on the movable roller 63 existing above it.

The direction of the wire rod 13 that has passed through the accumulator mechanism 60 is changed by the second turning pulley 33, and the wire rod 13 is routed so as to reach the winding machine 11 after being hung on the guide pulley 34 in the tension device 31. In the winding machine 11, the wire rod 13 that has passed through the guide member 53 is locked to the winding core 12.

In this embodiment, the cross-sectional shape of the winding body portion 12a around which the wire rod 13 of the winding core 12 used is directly wound, the data in the winding width w (FIG. 12), and the wire rod wound around the winding core 12 The data relating to the wire diameter d of 13 is stored in the memory 46a, which is the storage means of the controller 46, via the input device 46b. Winding will start from this state.

At the time of this actual winding, the controller 46 drives the winding motor 14 to rotate the winding core 12 at a constant speed, and the rotation angle sensor 16 detects the rotation angle and feeds it back to the controller 46.

Further, in the guide mechanism 51, as shown in FIGS. 12 and 13, each time the winding core 12 makes one rotation, the guide member 53 is rotated by the amount corresponding to the outer diameter of the wire rod 13. Move in the direction. In this way, the wire rod 13 supplied from the wire rod feeding mechanism 21 and to which tension is applied by the tension device 31 is aligned and wound around the winding core 12.

A characteristic point of the winding method of the present invention is that the wire rod 13 is unwound from the wire rod feeding mechanism 21 at the average winding speed of the wire rod 13 wound around the rotating winding core 12, and is unwound from the wire rod feeding mechanism 21. The speed of the wire rod 13 is decelerated or accelerated so as to be equal to the winding speed of the wire rod 13 wound around the rotating winding core 12.

That is, in the actual winding, the winding core 12 is rotated at the same angular velocity ω, but in this embodiment, the winding core 12 for winding the wire rod 13 is as shown in FIG. 9A. The cross section of the winding body portion 12a is rectangular, and in the cross section, the length from the center of rotation O to the long side is a, the length from the center of rotation O to the short side is b, and the angle from the center of rotation O to the angle. Assuming that the distance to the portion is c, when the rotation angular velocity ω of the winding core 12 is kept constant, the speed of the wire rod 13 wound around the winding core 12 as shown in FIG. 9B. The (vertical axis) varies with respect to the rotation angle (horizontal axis) of the winding core 12 so that a turning point of aω, cω, bω, cω, aω, ...

In this way, although the winding speed of the wire rod 13 wound around the winding core 12 varies, the cross-sectional shape of the winding core 12 is known, and the distance from the rotation center O to each part is known. If it is known, it is possible to calculate and obtain the winding speed of the wire rod 13 wound around the winding core 12 by multiplying it with the rotation angular velocity ω of the winding core 12.

In this embodiment, since the data regarding the cross-sectional shape of the winding body portion 12a around which the wire rod 13 of the winding core 12 to be used is directly wound is stored in the memory 46a, the arithmetic circuit 46c in the controller 46 winds. By multiplying the data on the core 12, specifically the lengths a, b, and c from the rotation center O of the winding core 12 to each part where the wire rod 13 is wound, by the angular velocity ω that rotates the winding core 12. , The calculated winding speed as shown by the solid line curve in FIG. 9B is obtained.

Further, the arithmetic circuit 46c in the controller 46 obtains the calculated take-up speed as shown by the solid line curve in FIG. 9 (b), and then the alternate long and short dash line is shown in FIG. 9 (b) obtained by averaging the calculated take-up speed. Calculate the average take-up speed as shown by the straight line of. That is, the calculated average winding speed is the length of the wire rod 13 that is wound when the winding core 12 makes one rotation at the calculated winding speed as shown by the solid line curve in FIG. 9 (b). It is the value divided by the time required to do so.

Then, the controller 46 drives the winding motor 14 to rotate the winding core 12 at a constant angular velocity ω, and controls the feeding motor 26 in the wire rod feeding mechanism 21 to obtain the result by the arithmetic circuit 46c. The wire rod 13 is controlled to be supplied from the wire rod feeding mechanism 21 at a speed equal to the calculated average winding speed.

At the same time, the controller 46 drives the servomotor 64 in the accumulator mechanism 60 to rotate the ball screw 66, and together with the movable base 67 screwed therein, the movable roller 63 is shown in FIG. 9B with a long broken line curve. As shown, the wire rod 13 is moved up and down in the vertical direction to decelerate or accelerate the wire rod 13 unwound from the wire rod unwinding mechanism 21 at the calculated average winding speed to obtain the calculated winding speed.

Here, the winding device 10 includes a feeding speed detecting means 70 that detects the speed of the wire rod 13 that is fed from the accumulator mechanism 60 toward the tension device 31, and the speed of the wire rod 13 that has passed through the tension device 31. Since the take-up speed detecting means 80 for detecting the above speed is provided, when the accumulator rate mechanism 60 decelerates or accelerates so as to be equal to the calculated take-up speed as shown in FIG. 5A, the accumulator rate mechanism 60 is used. The speed of the wire 13 that passed through was detected by the actual measurement feeding speed as shown in FIG. 5 (b), and the speed of the wire 13 that passed through the tension device 31 was detected by the actual measurement winding speed as shown in FIG. 5 (c). Will be done.

Here, when the wire rod 13 is wound around the winding core 12 having a non-circular cross section such as a rectangle, the winding speed of the wire rod 13 wound around the winding core 12 changes, so that the wire rod 13 is decelerated or accelerated. When the wire rod 13 is fed out from the wire rod feeding mechanism 21 at a constant speed without providing the accumulator mechanism 60, the guide pulley 34 swings periodically as shown by the broken line arrow in FIG. The tension applied to the wire rod 13 fluctuates due to the shaking.

However, in the present invention, although the wire rod 13 is unwound from the wire rod feeding mechanism 21 at a calculated average winding speed which is a constant value, the accumulator rate mechanism 60 is provided and the wire rod 13 is provided as shown in FIG. 3 or FIG. Is periodically decelerated or accelerated to a speed equal to the calculated winding speed as shown in FIG. 5 (a).

Therefore, as shown in FIG. 5 (c), when the winding speed of the wire rod 13 wound around the winding core 12 increases, as shown in FIG. 5 (b), the accumulator mechanism 60 increases. The wire rod 13 unwound from the wire rod feeding mechanism 21 is accelerated to increase the speed of the wire rod 13, and similarly, when the winding speed of the winding core 12 decreases, the accumulator mechanism 60 causes the wire rod feeding mechanism 60 to decrease. The wire rod 13 unwound from 21 is decelerated to reduce the speed of the wire rod 13.

As described above, when the speed after decelerating or accelerating the speed of the wire rod 13 unwound from the wire rod feeding mechanism 21 matches the actual winding speed of the wire rod 13 of the winding core 12, as shown by the broken line in FIG. The periodic runout of the guide pulley 34 is eliminated, and the tension of the wire rod 13 supplied to the winding core 12 can be kept constant. As a result, it becomes possible to manufacture a high quality coil.

Further, the controller 46 rotates the winding core 12 at a constant speed and moves the guide member 53 in the direction of the rotation axis of the winding core 12 to align and wind the wire rod 13 on the winding core 12, but the wire rod 13 is wound on the winding core 12. In the case of winding over multiple layers, as shown in FIG. 12, when the winding of the first layer to the winding body portion 12a is completed, the winding of the second layer is formed on the outer periphery of the wire rod 13 of the first layer. As shown in FIG. 13, when the winding of the second layer is completed, the winding of the third layer is performed on the outer periphery of the wire rod 13 of the second layer.

In this way, when the wire rod 13 is wound in multiple layers on the winding body portion 12a, as shown in FIGS. 10 and 11, the wire rod 13 is wound from the rotation center O of the winding core 12 as it goes to the upper layer. The length to the portion increases, and assuming that the winding core 12 rotates at a constant angular velocity ω, the winding speed wound around the winding core 12 increases as it goes to the upper layer.

Specifically, as shown in FIG. 9, the length from the rotation center O of the winding core 12 to each part where the wire rod 13 is wound is the outer shape itself in the cross section of the winding core 12 if it is the first layer. However, as shown in FIG. 10, the length from the rotation center O of the winding core 12 of the second layer to each part where the wire rod 13 is wound is the same as the outer shape of the cross-sectional shape of the winding core 12. The wire diameter d of 13 is added, and as shown in FIG. 11, the length from the rotation center O of the winding core 12 of the third layer to each part where the wire 13 is wound is the second layer. The wire diameter d of the wire rod 13 is further added to the one.

Since the wire diameter d of the wire rod 13 and the data of the winding width w of the winding body portion 12a sequentially added to the shape in the cross section of the winding core 12 are stored in the memory 46a in advance, the arithmetic circuit 46c in the controller 46 of FIG. 1 is By dividing the winding width w by the wire diameter d, the number of rotations required for the aligned winding of each layer can be derived.

Further, in the case of the winding of the second layer, as shown in FIG. 10, the length from the rotation center O of the winding core 12 in the winding of the second layer to each part where the wire rod 13 is wound. When (a + d), (b + d), and (c + d) are obtained and the winding of the third layer is obtained, the wire rod 13 is wound from the rotation center O of the winding core 12 of the third layer as shown in FIG. After obtaining the lengths (a + 2d), (b + 2d), and (c + 2d) to each part to be rotated, their lengths (a + d), (b + d), (c + d), (a + 2d), (b + 2d), By multiplying (c + 2d) by the angular velocity ω of the winding core 12 to be rotated, the calculated winding speed of each layer (FIGS. 10 (b) and 11 (b)) can be obtained.

Further, after the calculated winding speed of each layer (FIGS. 10B and 11B) is obtained, the arithmetic circuit 46c in the controller 46 calculates the average winding speed of each layer from the calculated winding speed. Calculate to obtain the calculated average take-up speed as shown by the alternate long and short dash line in FIGS. 10 (b) and 11 (b).

Then, the controller 46 controls the feeding motor 26 in the wire rod feeding mechanism 21, and even in the second and subsequent layers, the speed equal to the calculated average winding speed for each layer obtained by such calculation. The wire rod feeding mechanism 21 controls the wire rod 13 to be supplied, and the controller 46 controls the servomotor 64 in the accumulator mechanism 60 to obtain a long broken line in FIGS. 10 (b) and 11 (b). As shown by the curve of, the movable roller 63 is moved up and down in the vertical direction to decelerate or accelerate the wire rod 13 supplied from the wire rod feeding mechanism 21, and the calculation is performed in that way even in the second and subsequent layers. It is assumed that the speed is controlled so as to be equal to the calculated winding speed for each layer obtained in this manner.

Then, even in the second and subsequent layers, the speed (feeding amount) of the wire rod 13 that has passed through the accumulator mechanism 60 is balanced with the winding speed (winding amount) of the wire rod 13 of the winding core 12. The feeding amount will be controlled.

Therefore, even in the second and subsequent layers, the periodic runout of the guide pulley 34 in the tension device 31 is suppressed, and the position of the guide pulley 34 is placed on the wire rod 13 hung around the guide pulley 34 by the elastic member 35. A constant tension that does not fluctuate according to the above is applied.

Here, in the actual winding, the controller 46 passes through the accumulator mechanism 60 and is fed toward the tension device 31, and the speed of the wire rod 13 and passes through the tension device 31 toward the winding core 12. The speed of the wire rod 13 is detected, and the servomotor 64 in the accumulator mechanism 60 is controlled so as to eliminate the deviation in the time axis direction between the detected speed change state of the measured feeding speed and the speed change state of the measured winding speed. Will be done.

That is, in the present invention, the speed of the wire rod 13 wound by the winding core 12 and the average winding speed thereof are calculated in advance, and the wire rod 13 is supplied from the wire rod feeding mechanism 21 at a speed equal to the obtained calculated average winding speed. Since the wire rod 13 is decelerated or accelerated by the accumulator mechanism 60 to obtain the calculated winding speed, as shown in FIG. 5, the speed of the wire rod 13 originally causes a deviation in the time axis direction before and after the tension device 31. do not have.

However, if the rotation speed of the winding core 12 is increased, the deceleration or acceleration of the wire rod 13 in the accumulator mechanism 60 changes at a relatively fast pitch, and the controller 46 controls the servomotor 64 according to the calculated winding speed. However, the movement of the movable roller 63 may not follow, and the deceleration or acceleration of the wire rod 13 may be delayed. Then, a deviation occurs between the speed of the wire rod 13 drawn from the accumulator mechanism 60 toward the tension device 31 and the speed of the wire rod 13 that passes through the tension device 31 and is wound around the winding core 12. become.

Here, the actual speed of the wire rod 13 unwound from the accumulator mechanism 60 toward the tension device 31 is detected by the feeding speed detecting means 70, and the actual winding speed of the wire rod 13 wound by the winding core 12 is Since it is detected by the take-up speed detecting means 80, the controller 46 determines the state of the speed change of the measured take-up speed by the detection output of the take-up speed detection means 80 and the actual take-out speed by the detection output of the take-out speed detection means 70. Always contrast the state of speed change of. Then, the accumulator mechanism 60 causes the wire rod 13 to be decelerated or accelerated so as to eliminate the deviation in the time axis direction between the detected speed change state of the measured feeding speed and the speed change state of the measured winding speed.

Specifically, when a deviation T in the time axis direction occurs between the measured winding speed shown by the solid line in FIG. 6 (c) and the measured feeding speed shown by the broken line in FIG. 6 (b), the controller 46 finds the time lag T. Then, the deviation T is subtracted from the calculated winding speed shown by the solid line in FIG. 6A to obtain the corrected winding speed as shown by the alternate long and short dash line.

In this respect, the controller 46 in this embodiment calculates the deviation T in the time axis direction of each speed change of the measured winding speed and the measured feeding speed, and subtracts the deviation T from the calculated winding speed to correct the winding. It is equipped with a speed correction means for obtaining the taking speed.

Then, the controller 46 controls the servomotor 64 in the accumulator mechanism 60 along the corrected winding speed shown by the alternate long and short dash line in FIG. 6A. Then, the controller 46 controls the accumulator mechanism 60 in a state where the calculated winding speed shown by the solid line in FIG. 6A is deviated and preceded by the amount of T, and is shown by the solid line in FIG. 6C. The actual winding speed of the wire 13 wound by the winding core 12 is matched with the speed of the wire 13 decelerated or accelerated by the accumulator mechanism 60 toward the tension device 31 as shown by the solid line in FIG. 6 (b). be able to.

As a result, even when the rotation speed of the winding core 12 is increased and the winding speed to the winding core 12 changes at a relatively high pitch, the accumulator mechanism 60 changes the deceleration or acceleration to the speed change. It becomes possible to follow. In this way, there is no discrepancy between the actual winding speed of the wire rod 13 wound by the winding core 12 and the supply amount of the wire rod 13 that is decelerated or accelerated by the accumulator mechanism 60 and supplied to the tension device 31. Therefore, the periodic runout of the guide pulley 34 in the tension device 31 is prevented. As a result, even if the rotation speed of the winding core 12 is increased, the elastic member 35 can apply a constant tension that does not fluctuate according to the position of the guide pulley 34.

On the other hand, when there is no deviation in the time axis direction between the measured winding speed and the calculated winding speed, but the winding speed itself is different, that is, the calculated winding speed. If the actual winding speed of the wire rod 13 to the winding core 12 is different, the supply amount of the wire rod and the winding amount of the wire rod do not match.

Then, in the tension device 31, the guide pulley 34 around which the wire rod 13 is hung moves along the rail 36 to change the distance from the winding core 12, and the position in the Y-axis direction by the amount of the wire rod 13 that does not match. Changes. In this way, the difference between the supply amount and the take-up amount is absorbed by the change in the position of the guide pulley 34 in the tension device 31, and the movement of the guide pulley 34 is detected by the position sensor 45 and fed back to the controller 46.

Here, when the guide pulley 34 moves, the tension applied to the wire rod 13 gradually fluctuates. Therefore, when the change in the position of the guide pulley 34 is detected by the detection output of the position sensor 45, the controller 46 moves. , The calculated winding speed, which is the supply amount of the wire rod 13, is increased or decreased at a constant rate so that the position of the guide pulley 34 returns to the predetermined position of the rail 36, for example, substantially the center, and based on the increased or decreased correction winding speed. To obtain the calculated average take-up speed. Then, the controller 46 controls the rotation speed of the feeding motor 26 based on the calculated average winding speed, increases or decreases the feeding speed of the wire rod 13 in the wire rod feeding mechanism 21, and balances it with the winding speed of the winding core 12. ..

That is, as shown in FIG. 7A, the actually measured winding speed of the wire rod 13 to the winding core 12 is faster than the calculated winding speed, and the guide pulley 34 gradually approaches the winding machine 11. If this is the case, as shown in FIG. 7B, the calculated winding speed is increased at a constant rate so that the amount of the wire 13 being unwound by the wire unwinding mechanism 21 is increased, and the winding speed is substantially the same as the measured winding speed. Obtain the corrected take-up speed. Then, the corrected average winding speed is calculated based on the corrected winding speed. The corrected average winding speed also increases at a constant rate, and the controller 46 sets the feeding motor 26 in the wire rod feeding mechanism 21 so that the wire rod 13 is fed at the corrected average winding speed thus increased. While controlling, the wire rod 13 is decelerated or accelerated by the accumulator mechanism 60 so that the actually measured feeding speed of the wire rod 13 toward the tension device 31 matches the actually measured winding speed as shown in FIG. 7 (c).

On the other hand, as shown in FIG. 8A, the actually measured winding speed of the wire rod 13 to the winding core 12 is slower than the calculated winding speed, and the guide pulley 34 gradually moves away from the winding machine 11. If this is the case, as shown in FIG. 8B, the calculated winding speed is reduced at a constant rate so that the amount of the wire 13 being unwound by the wire unwinding mechanism 21 is reduced, and the winding speed is substantially the same as the measured winding speed. Obtain the corrected take-up speed. Then, the corrected average winding speed is calculated based on the corrected winding speed. The corrected average winding speed also decreases at a constant rate, and the controller 46 sets the feeding motor 26 in the wire rod feeding mechanism 21 so that the wire rod 13 is fed at the corrected average winding speed reduced in this way. While controlling, the wire rod 13 is decelerated or accelerated by the accumulator mechanism 60 so that the actually measured feeding speed of the wire rod 13 toward the tension device 31 matches the actually measured winding speed as shown in FIG. 8 (c).

As a result, the guide pulley 34 returns to a predetermined position of the rail 36, for example, substantially in the center, and the tension applied to the wire rod 13 is returned to a predetermined value.

In the above-described embodiment, the case where the tension device 31 includes the guide pulley 34 provided so as to be movable along the rail 36 has been described, but the tension device has the tension arm 4 as an elastic member as shown in FIG. It may be rotated by 6 to apply tension to the wire rod 2 delivered from the guide pulley 5 attached to the tip of the tension arm 4.

Even in a tension device having a tension arm 4 as shown in FIG. 15, the wire rod unwound from the wire rod feeding mechanism 21 at an average winding speed is decelerated or accelerated by an accumulator mechanism, and the speed of the wire rod is adjusted to the winding core. If the speed is equal to the winding speed of the wire wound around the wire, it is possible to prevent the guide pulley 5 of the tension device from moving due to the speed fluctuation of the wire. Then, since the tension fluctuation of the wire rod due to the movement of the guide pulley 5 is avoided, the tension of the wire rod wound around the winding core 12 can be kept constant.

Further, in the above-described embodiment, the case where the elastic member 35, which is the urging means for urging the guide pulley 34 in the tension device 31, is a coil spring is illustrated. However, a fluid pressure cylinder that urges the rod in a direction of immersion or protrusion by a fluid pressure such as air pressure may be used as the elastic member as the urging means. When such a fluid pressure cylinder is used as an elastic member, if it is desired to change the elastic force, the elastic force can be changed relatively easily by changing the fluid pressure such as compressed air in the cylinder. be able to.

Further, in the above-described embodiment, the case where the arithmetic circuit 46c is provided in the controller 46 and the arithmetic circuit 46c calculates the calculated winding speed and the calculated average winding speed from the information and data stored in the memory 46a has been described. .. However, without providing the calculation circuit 46c, the take-up speed and the average take-up speed are obtained in advance separately from the controller 46, and the calculated take-up speed and the average take-up speed provided separately in this way are stored in the storage means 46a. You may do so.

In this case, the controller 46 controls the wire rod feeding mechanism 21 so as to supply the wire rod 13 according to the calculated average winding speed stored in the storage means 46a so that the calculated winding speed stored in the storage means 46a is obtained. Since the speed of the wire rod 13 unwound from the wire rod feeding mechanism 21 is decelerated or accelerated, and the frequent movement of the guide pulley 34 is still avoided, the tension of the wire rod 13 wound around the winding core 12 is constant. It will be possible to keep it in.

Further, in the above-described embodiment, the case where the accumulator mechanism 60 is provided between the wire rod feeding mechanism 21 and the tension device 31 has been described. However, as shown in FIG. 14, the accumulator mechanism 60 may be provided on the downstream side of the tension device 31.

In the winding device 10 as shown in FIG. 14, the wire rod 13 unwound from the wire rod feeding mechanism 21 at the average winding speed passes through the tension device 31 at the average winding speed and has a predetermined tension. Is given, and then the speed of the wire rod 13 that has passed through the tension device 31 is decelerated or accelerated to be equal to the winding speed of the wire rod 13 wound around the rotating winding core 12.

Even in such a winding device 10, the tension device 31 can be made by making the speed of the wire 13 passing through the tension device 31 equal to the winding speed of the wire 13 wound around the rotating winding core 12. Even if the guide pulley 34 is provided so that the wire rod 13 is hung around and moved by the elastic member 35, it is possible to prevent the wire rod 13 of the guide pulley 34 from moving due to the speed fluctuation, and the wire rod 13 is wound around the winding core 12. It is possible to keep the tension of the wire rod 13 to be constant.

10 Winding device 12 Winding core 13 Wire rod 14 Winding motor (winding core rotating means)
21 Wire rod feeding mechanism 31 Tension device 46 Controller 46a Memory (storage means)
46c Arithmetic circuit 60 Accumulation rate mechanism 61a, 61b Fixed roller 63 Movable roller 64 Servo motor 70 Feeding speed detecting means 80 Winding speed detecting means

Claims (10)

The winding core (12), the wire rod feeding mechanism (21) for supplying the wire rod (13) to the winding core (12), and the wire rod (21) supplied from the wire rod feeding mechanism (21) to the winding core (12). The tension device (31) that applies tension to 13) and the wire rod (31) that is supplied from the wire rod feeding mechanism (21) by rotating the winding core (12) and is tensioned by the tension device (31). In a winding device including a winding core rotating means (14) for winding 13) around the winding core (12) and a controller (46) for controlling the winding core rotating means (14).
An accumulator mechanism (60) for decelerating or accelerating the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) is provided.
The controller (46)
The wire rod feeding mechanism (21) is controlled so that the wire rod (13) is unwound at the average winding speed of the wire rod (13) wound around the rotating core (12).
Further, the winding speed of the wire rod (13) wound by the winding core (12) that controls the accumulator rate mechanism (60) to rotate the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21). A winding device characterized by being equal to. The accumulator mechanism (33) passes between a pair of fixed rollers (61a, 61b) provided along the moving path of the wire rod (13) and the pair of fixed rollers (61a, 61b), and the wire rod The winding device according to claim 1, further comprising a movable roller (63) that can move in a direction intersecting the moving path of (13) and a servomotor (64) that moves the movable roller (63). A storage means (46a) for storing the calculated winding speed and the calculated average winding speed, which is the winding speed of the wire rod (13) wound around the rotating winding core (12), is provided.
The controller (46) controls the wire rod feeding mechanism (21) so as to supply the wire rod (13) according to the calculated average winding speed stored in the storage means (46a), and also controls the wire rod feeding mechanism (21).
The controller (46) decelerates or increases the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) to obtain the calculated winding speed stored in the storage means (46a). The winding device according to claim 1 or 2, which controls the rate mechanism (60). A storage means (46a) for storing information about the winding core (12), and a winding speed and an average winding speed of the wire rod (13) wound around the winding core (12) from the information about the winding core (12). Is provided with an arithmetic circuit (46c) to calculate
The controller (46) controls the wire rod feeding mechanism (21) so as to supply the wire rod (13) according to the calculated average winding speed calculated by the arithmetic circuit (46c), and also controls the wire rod feeding mechanism (21).
The controller (46) decelerates or increases the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) to obtain the calculated take-up speed calculated by the arithmetic circuit (46c). The winding device according to claim 1 or 2, which controls the mechanism (60). An accumulator mechanism (60) is provided between the wire feeding mechanism (21) and the tension device (31).
The feeding speed detecting means (70) for detecting the speed of the wire rod (13) being fed from the accumulator mechanism (60) toward the tension device (31), and
A winding speed detecting means (80) for detecting the speed of the wire rod (13) passing through the tension device (31) and heading toward the winding core (12) is provided.
The controller (46) is in a state of speed change of the measured take-up speed by the detection output of the take-up speed detection means (80) and a state of speed change of the actual take-out speed by the detection output of the take-out speed detection means (70). The winding device according to any one of claims 1 to 4, wherein the accumulator mechanism (60) is controlled so as to eliminate the deviation in the time axis direction. In a winding method in which a wire rod (12) is rotated to wind a wire rod (13) supplied from a wire rod feeding mechanism (21) and tensioned by a tension device (31) around the winding core (12).
The wire rod (13) is unwound from the wire rod feeding mechanism (21) at the average winding speed of the wire rod (13) wound around the rotating core (12).
Make the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) equal to the winding speed of the wire rod (13) wound around the winding core (12) that rotates by decelerating or accelerating. A winding method characterized by. The wire rod (13) located between the pair of fixed rollers (61a, 61b) provided along the movement path of the wire rod is hung around the movable roller, and the movable roller (63) is routed to the movement path of the wire rod (13). The winding method according to claim 6, wherein the wire rod (13) is decelerated or accelerated by moving the wire rod (13) in a direction intersecting with the wire rod (13). The winding speed of the wire rod (13) wound around the rotating winding core (12), and the calculated winding speed and the calculated average winding speed are stored in the storage means (46a).
The wire rod feeding mechanism (21) is controlled so as to supply the wire rod (13) according to the calculated average winding speed stored in the storage means (46a).
The winding according to claim 6 or 7, which reduces or accelerates the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) so as to have the calculated winding speed stored in the storage means (46a). Method. Information about the core (12) is stored in the storage means (46a),
From the information about the winding core (12), the winding speed and the average winding speed of the wire rod (13) wound around the winding core (12) are calculated by the arithmetic circuit (46c).
The wire rod feeding mechanism (21) is controlled so as to supply the wire rod (13) according to the calculated average winding speed calculated by the arithmetic circuit (46c).
The winding method according to claim 6 or 7, wherein the speed of the wire rod (13) unwound from the wire rod feeding mechanism (21) is decelerated or accelerated so as to have the calculated winding speed calculated by the arithmetic circuit (46c). .. Accelerate or decelerate the wire (13) that is fed from the wire feeding mechanism (21) toward the tension device (31).
The feeding speed of the wire rod (13) that accelerates or decelerates toward the tension device (31) and the winding speed of the wire rod (13) that passes through the tension device (31) and is wound around the winding core (12). Detect both,
Any 1 of claims 6 to 9 for accelerating or decelerating the wire rod (13) so as to eliminate the deviation in the time axis direction between the detected speed change state of the measured feeding speed and the speed change state of the measured winding speed. The winding method described in the section.

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