JP2648103B2 - Numerical controller for winding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller for a winding machine, and more particularly to a numerical controller for a deflection yoke winding machine used for manufacturing a deflection yoke used for a color television receiver or the like.

[0002]

2. Description of the Related Art Conventionally, as an example of this type of numerical controller for a deflection yoke winding machine, for example, Japanese Patent Application No. Hei 5-182965.
Japanese Patent Application Laid-Open Publication No. HEI 10-260, "Numerical control device with tension control function for supply wire of winding machine".

FIG. 4 is a block diagram showing an example of a conventional deflection yoke winding machine, which has a configuration equivalent to that of the above-described conventional winding machine with a tension control function of a supply wire.

Referring to FIG. 4, a deflection yoke winding machine for manufacturing a deflection yoke used in a conventional color television receiver or the like keeps the tension of a winding wire constant with respect to a speed change of a rotating shaft. Numerical control unit 20 with a tension control function for outputting a tension command to be performed and a movement command to the rotating shaft, a servo control unit 2 for inputting the moving command and controlling the rotating shaft motor 3, and a rotating shaft attached to the rotating shaft A motor 3, a winding guide mechanism 4 for winding the winding into a special shape of the deflection yoke, a tension device 5 for applying tension to the winding wire 6 according to a tension command, and a winding as a material forming the deflection yoke. And a wire 6 for wire.

First, the shape of the deflection yoke will be described with reference to FIG.

FIGS. 5 (a) and 5 (b) are external views of a deflection yoke for an in-line type electron gun convergence-free cathode ray tube, which is currently the mainstream, in which a clad winding is used.

Next, the operation of the conventional example shown in FIG. 4 will be described with reference to FIG.

FIG. 6A is a view showing the relationship between the winding order of the deflection yoke and the rotational position, and FIG. 6B is a view taken in the direction of arrow A in FIG.

The rotating shaft rotates in accordance with the movement command output from the numerical controller 20 with the tension control function, and the winding guide mechanism 4 attached to the rotating shaft rotates.

As the winding guide mechanism 4 rotates, the winding wire 6 moves along the guide from P0 to P as shown in FIG.
It is wound in the order of 1 → P2 → P3 → P4 → P5 → P0.

On the other hand, the tension command output by the numerical controller 20 with a tension control function is to change the tension command in each region until the rotating shaft starts rotating, accelerates, reaches a constant speed, decelerates and stops. By
Even if the speed of the rotating shaft changes, the tension applied to the winding wire 6 is kept constant.

By the operation described above, the deflection yoke having the special shape shown in FIG. 5 is wound up.

[0013]

Since the conventional deflection yoke winding machine has only a tension control function for a change in the speed of the rotating shaft, the change in the tension within one rotation by the winding guide mechanism and the number of windings. There is no control over the change in tension.

Therefore, since the winding is performed at a low speed of the rotating shaft so as to reduce the influence of the change in tension, there is a problem that the tact time cannot be reduced.

In addition, slack occurs when the tension of the winding wire is slightly changed. This sagging has a problem in that it has an adverse effect on increasing the density of the winding distribution of the deflection yoke and reducing variations in the distribution.

An object of the present invention is to suppress the change in the tension applied to the winding wire by the winding guide mechanism and the change in the tension applied to the winding wire in accordance with the number of turns, thereby reducing the rotation speed of the rotating shaft. Numerical control unit for winding machines with improved winding yoke characteristics by increasing the winding time and shortening the tact time and eliminating the sagging of the windings, thereby increasing the density of the winding distribution and reducing the variation in the distribution. Is to provide.

[0017]

According to the present invention, there is provided a tension control function for outputting a tension command for suppressing a change in the tension of a winding wire due to a speed change of a rotating shaft and a moving command to the rotating shaft. A numerical control device, a rotation axis position calculation unit that outputs a rotation axis position and the number of windings from the movement command, a correction data memory that stores correction data for the rotation axis position and the number of windings, and the correction data memory that is read from the correction data memory. A correction command calculation unit that outputs a correction command obtained by converting data obtained by multiplying the correction data of the number of turns by the number of turns and the correction data of the rotation axis position into a negative value, and adding the tension command and the correction command. And an adder for outputting a correction tension command.

Further, the winding machine includes a servo control unit for controlling a rotary shaft motor in accordance with the movement command from the numerical controller having the tension control function, and a winding wire wound by being rotated by the rotary shaft motor. A numerical control device for a winding machine, comprising: a winding guide mechanism; and a tension device that controls the tension of the winding wire to be constant according to the correction tension command from the adding unit. Can be

[0019]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a numerical controller for a winding machine according to the present invention, FIG. 2 is a diagram showing a change in tension of a winding wire by a winding guide mechanism in FIG. 1, and FIG. FIG. 2 is a diagram showing a change in a command of each part during a winding operation in FIG. 1 and a change in a tension of a winding wire.

Referring to FIG. 1, the numerical controller 1 for a winding machine according to the present embodiment has a tension command for keeping the tension of the winding wire 6 constant with respect to a speed change of the rotating shaft and a moving command to the rotating shaft. Numerical control device 10 with a tension control function for outputting a rotation axis position and a number of turns from a movement command, a rotation axis position calculation unit 11, a correction data memory 13 for storing correction data for the rotation axis position and the number of turns,
A correction command calculator 12 for outputting a correction command obtained by converting data obtained by multiplying the correction data of the number of turns read from the correction data memory 13 by a number of turns and correction data of the rotation axis position into a negative value, to output a correction command; And a correction command for adding the correction tension command and the correction tension command.

The servo control unit 2 controls the rotating shaft motor 3 in accordance with a movement command from the numerical control device 10 having a tension control function, and rotates the winding guide mechanism 4 attached to the rotating shaft to thereby control the winding. Winding is performed by winding the wire 6.

The tension device 5 controls the tension of the winding wire 6 according to the correction tension command from the adder 14 so as to be constant.

Next, the operation of the embodiment shown in FIG. 1 will be described.

First, the change in the tension of the winding wire 6 when winding is performed along the winding guide 4 will be described. When the winding wire 6 is wound from P0 to P1 in FIG. Distance (from 0 ° to Z1 °)
5, the distance from P0 to P1 is larger because the deflection yoke employs a clad winding as shown in FIG. Therefore, the tension applied to the winding wire 6 increases as shown in FIG.

Conversely, when the wire is wound from P1 to P2, the tension applied to the winding wire 6 decreases as shown in FIG. 2 (a) and becomes substantially the same as the position of P0. This is because the distance from the center O of the circle between P0 and P2 is shown in FIG.
This is because they are equal as shown in FIG.

FIG. 2A shows the change of the tension within one rotation, and the tension of P1 (the position of Z1 °) is set to T.
The position of the rotating shaft and the tension are closely related so that the tension of 1, P4 (position of Z4 °) becomes T2.

FIG. 2B shows a change in tension that increases with the number of turns. This is because, as the number of turns increases, the distance from the center O of the circle increases by the diameter of the winding wire, so that the speed of pulling the winding wire 6 increases even if the rotating shaft rotates at a constant rotation speed. To do that. The tension that increases for each number of turns is T3.

As described above, it can be seen that the tension applied to the winding wire 6 slightly changes depending on the shape and the number of windings.

Therefore, the tension with respect to the rotation axis position and the tension for each number of turns are measured in advance and stored in the correction data memory 13.

Next, the order of the winding operation will be described with reference to FIG.

When the numerical controller 10 with the tension control function performs the winding operation as shown in FIG. 3A, the rotation axis is changed to the rotation axis by the acceleration region, the constant speed region and the deceleration region as shown in FIG.
And a tension command (shown in FIG. 3 (c)) corresponding to a change in the speed of the rotating shaft is output.

On the other hand, when the rotation command is input from the numerical controller 10 with the tension control function, the rotation axis position calculator 11 outputs the rotation axis position and the number of turns n to the correction command calculator 12.

The correction command calculation unit 12 reads correction data corresponding to the winding from the correction data memory 13 and multiplies the number of turns (n
) And store it as data A. Next, the correction data corresponding to the rotation axis position is read out from the correction data memory 13 and added to the data A to form data B. This data B is converted into a negative value and the correction command (shown in FIG. 3D) ) To the adder 14

The adder 14 adds the tension command shown in FIG. 3C and the correction command shown in FIG.
The correction tension command is output to the tension device 5 as shown in FIG.

The tension device 5 controls the tension applied to the winding wire 6 according to the correction tension command.

As described above, according to the present embodiment, the correction tension command suppresses the change in tension generated by the winding guide mechanism 4, and the winding is controlled so that the tension does not change as shown in FIG. Can be implemented.

[0038]

As described above, the present invention provides a numerical control device with a tension control function for outputting a tension command for suppressing a change in the tension of a winding wire due to a speed change of a rotating shaft and a movement command for a rotating shaft. A rotation axis position calculator for outputting the rotation axis position and the number of windings from the movement command; a correction data memory for storing correction data for the rotation axis position and the number of windings; and a winding number correction data read from the correction data memory. A correction command calculation unit that outputs a correction command obtained by converting the multiplied data and the correction data of the rotation axis position into a negative value, and an adding unit that adds the tension command and the correction command to output a correction tension command. Since the tension change due to the winding guide mechanism is suppressed by the correction tension command and the tension becomes constant, The rotating shaft becomes possible to rotate at high speed, has the effect that it is possible to shorten the tact time.

Further, since the sagging of the winding can be suppressed, there is an effect that the density of the winding can be increased and the variation of the distribution can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a numerical controller for a winding machine according to the present invention.

FIG. 2 is a diagram showing a change in tension of a winding wire by a winding guide mechanism in FIG. 1;

FIG. 3 is a diagram showing a change in a command of each unit and a change in the tension of a winding wire during a winding operation in FIG. 1;

FIG. 4 is a block diagram showing an example of a conventional deflection yoke winding machine.

FIGS. 5A and 5B are external views of a deflection yoke for an in-line type electron gun convergence-free type cathode ray tube, which is currently the mainstream.

6A is a diagram showing a relationship between a winding order of a deflection yoke and a rotational position, and FIG. 6B is a diagram viewed from an arrow A in FIG. 6A.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Numerical control device for winding machine 2 Servo control unit 3 Rotary shaft motor 4 Winding guide mechanism 5 Tension device 6 Wire for winding 10, 20 Numerical control device with tension control function 11 Rotary axis position calculation unit 12 Correction command calculation unit 13 correction data memory 14 adder

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication H01J 9/236 G05B 19/18 E

Claims (2)

(57) [Claims] 1. A numerical controller having a tension control function for outputting a tension command for suppressing a change in the tension of a winding wire due to a speed change of a rotating shaft and a movement command to the rotating shaft, and rotating from the movement command. A rotation axis position calculator for outputting the shaft position and the number of turns, a correction data memory for storing correction data for the rotation axis position and the number of turns, and data obtained by multiplying the number of turns by the correction data of the number of turns read out from the correction data memory A correction command calculating unit that outputs a correction command obtained by converting addition data of the correction data of the rotation axis position to a negative value, and an adding unit that adds the tension command and the correction command to output a correction tension command And a numerical controller for a winding machine. 2. A winding machine comprising: a servo controller for controlling a rotary shaft motor in accordance with the movement command from the numerical controller having the tension control function; and a winding wire wound by being rotated by the rotary shaft motor. The winding machine according to claim 1, further comprising a winding guide mechanism, and a tension device that controls the tension of the winding wire to be constant according to the correction tension command from the adding unit. Numerical control unit.