JPH09100065A - Wire rod supplying nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent any deformation in absorbing a collisional impact even in the case where a nozzle gas collided with a work or the like by installing an impact absorbing part for absorbing any impact at the time of a collision. SOLUTION: A nozzle 201 is provided with a cylindrical component 201a, an impact absorbing part 202, a tip part 203 or the like. This cylindrical component 201a of the nozzle 201 is provided with a taper part 201b. In this constitution, the impact absorbing part 202 is detachably installed in space between a lower end of this taper part 201b and the tip end 203 by means of screwing. The impact absorbing part 202 is a part that absorbs any impact in the case where the tip part 203 or the like has collided with a work and the like, by way of example. This impact absorbing part 202 is the weakest in strength than the cylindrical component 201a and the tip part 203, therefore at the time of being shocked, this impact absorbing part 202 is so designed as to be broke down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a nozzle for supplying a wire when winding the wire around a work.

[0002]

2. Description of the Related Art A deflection yoke used as a workpiece in a cathode ray tube such as a television receiver requires a winding of a deflection coil for deflecting an electron beam. A winding machine or the like for winding a wire on such a deflection yoke uses a nozzle at its tip. The nozzle is for smoothly supplying and winding the wire rod while moving with respect to the work. For this purpose, a nozzle of this type needs to have a thin outer shape or a smooth surface, and thus the manufacturing cost is high.

[0003]

Such a nozzle has the following problems.
Since the wire rod moves at high speed near the work when it is wound around the work, the nozzle may collide with the work or other peripheral portions. At this time, the impact itself may destroy the nozzle itself or the vicinity of the nozzle. When such a nozzle collision occurs, an impact may be transmitted to an important structural part of the winding machine connected to the nozzle, and the structure of the winding machine may be destroyed. A lot of time is required for replacement and repair. Further, since the nozzle generally has a complicated shape, it is necessary to remake the entire nozzle when changing the design or the shape of a part of the nozzle, which is wasteful.
For example, even when only the outlet of the nozzle is changed to another outlet in order to change the wire diameter of the wire that passes through the nozzle, it is necessary to remake the entire nozzle.

FIG. 11 shows the structure of a nozzle of a conventional winding machine. The nozzle N is movable in the X-axis and Z-axis directions, and can rotate in the θ direction. The nozzle N winds while supplying the wire W to the work 1. At this time, since the nozzle N moves at a high speed and near the work 1, the nozzle N may collide with the work 1 during winding. Such a collision is caused by, for example, a setting error of the work, and for example, the shaft A portion in FIG. 11 may be bent. It takes time to replace the shaft A, and another shaft must be prepared and placed as a spare. Therefore, it is not economical to prepare and place the shaft A, which is a highly accurate component, as a spare. FIG. 12 shows another example of a conventional thin nozzle. In this case, the tip of the nozzle P is considerably thin, and the nozzle P
When is collided with a work or the like, the nozzle P is easily broken or bent.

Therefore, the present invention has been made in order to solve the above-mentioned problems. Even when the nozzle collides with a work or the like, the impact of the collision is absorbed,
An object of the present invention is to provide a nozzle for supplying a wire that can prevent deformation.

[0006]

According to the present invention, there is provided a nozzle for supplying a wire to a work, the wire being provided with a shock absorbing portion for absorbing a shock at the time of collision. Achieved by the nozzle. According to the present invention, since the nozzle has the collision absorbing portion, even if the nozzle collides with a work or the like, the impact can be absorbed. Therefore, the nozzle does not deform and has a long life.

[0007]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limitations are given, the scope of the present invention is not limited to these modes unless otherwise specified to limit the present invention.

FIG. 1 is a perspective view showing an entire winding apparatus including a preferred embodiment of a nozzle of the present invention. FIG.
In, the guide rails 12, 12 are mounted on the base 10 of the winding device. These guide rails 12 and 12 support the guide unit moving body 14 and the nozzle unit moving body 16 so as to be movable in the arrow X direction. The guide unit moving body 14 can be moved and positioned in the arrow X direction by rotating the feed screw 14b by the operation of the motor 14a. Further, the nozzle unit moving body 16 can be moved and positioned in the arrow X direction by rotating the feed screw 16b by the operation of the motor 16a. The feed screw 16b is the nut portion 16 of the nozzle unit moving body 16.
It meshes with c. The feed screw 16b and the nut portion 16c are shown enlarged in FIG.

The guide unit moving body 14 shown in FIG. 1 is provided with a support column 18, and a drive unit (not shown) for the support column 18.
Can move and position the support 19 in the arrow Z direction (vertical direction). The support 19 has an upper guide unit 301 and a lower guide unit 302, and these upper guide unit 301 and lower guide unit 302
Are arranged substantially parallel to the horizontal direction. The upper guide unit 301 has an actuator 301a, and the operation of the actuator 301a allows the hook 301b shown in FIG. 2 to hold the wire W in a detachable manner. Similarly, the lower guide unit 302 of FIG. 1 has an actuator 302a, and the operation of this actuator 302a enables the hook 302b shown in FIG. 2 to hold the wire W so that it can be detachably sandwiched. ing.

Next, the nozzle unit moving body 16 of FIG. 1 has a column 30. The support column 30 has a nozzle unit support portion 31, and the nozzle unit support portion 31 can be positioned and moved in the arrow Z direction by a drive portion 31a including a motor or the like. As shown in FIG. 2, the nozzle unit support portion 31 includes the drive motor 22.
1, a belt 222, a wire rod stopper portion 225, a nozzle 201, and the like. The nozzle 201 is also called a nozzle unit.

The pulley 221a of the drive motor 221
A belt 222 is set between the pulley 221b and the pulley 221c. By operating the drive motor 221, the nozzle 201 can be indexed by a predetermined angle in the α direction about the axis C. The wire rod stopper portion 225 has a function of stopping the supply of the wire rod W supplied from the wire rod supply source 43 to the nozzle 201 side by the operation of the actuator.

The work supporting portion 70 of FIG. 2 has a receiving base 401 for the work K. This work K pedestal 401
Is a portion that stably supports the work K. In the state in which the work K is supported by the pedestal 401, the central axis CK of the work K is oriented in the vertical direction. The work supporting portion 70 can be indexed by a predetermined angle in the arrow θ direction by the operation of the rotating portion 73. In the embodiment of the present invention, the work K is a frame body of a deflection yoke provided in the cathode ray tube of the television receiver, and the deflection yoke has the following structure.

That is, the work K in FIG. 2 is, for example, a deflection yoke for high definition, and is formed in a substantially funnel shape. When this work K is mounted on the cathode ray tube, the opening 21a side is positioned on the fluorescent surface side of the cathode ray tube,
The small opening 21b side is arranged on the neck side of the cathode ray tube. Workpiece K has opening 2
A plurality of locking pieces 21c and a winding groove 21d are formed on the 1a side. The locking piece 21 is also provided on the side of the small opening 21b.
x is formed. These locking pieces 21c, winding grooves 21
The horizontal deflection coil (HLF) is used for d and the locking piece 21x.
This is the part where the winding is applied. Further, the work K has a winding groove 21d.
A winding portion B corresponding to a portion for winding a vertical deflection coil (VLF) is provided in the vicinity of.

The rotation drive section 160 includes the drive motor 221, the belt 222, and the pulleys 221a and 221a, 22 described above.
1b, 221c and the like. The nozzle 201 that supplies the wire rod W fed from the wire rod supply source 43 of FIG. 2 to the work K side, and the upper guide unit 301 and the lower guide unit 302 that cooperate with the movement of the nozzles lock the wire rod W on the work K. A predetermined horizontal deflection coil (HL)
The winding of F) and the winding of the vertical deflection coil (VLF) are formed.

The control unit 600 shown in FIG. 2 includes the actuators 301a and 302a, the drive unit 31a, the driving motor 221, the motors 14a and 16a, the actuator 226, and the rotating unit 73 shown in FIG. It controls the movement.

Next, the structure of the nozzle 201 will be described with reference to FIGS. The nozzle 201 is also called a flexible nozzle, and has a cylindrical part 201a and a shock absorbing portion 2
02, a tip portion 203 and the like. The cylindrical part 201a of the nozzle 201 has a tapered portion 201b.
Between the lower end of the taper portion 201b and the tip end portion 203, a shock absorbing portion 202 is detachably provided with a screw.

The cylindrical part 201a is a main part of the structure of the nozzle 201 and maintains the rigidity of the nozzle 201. The shock absorbing portion 202 is a portion that absorbs a shock when the tip portion 203 or the like collides with the work K or the like, for example. This shock absorbing portion 202 is a cylindrical component 201.
It has the weakest strength than the a and the tip portion 203, and the shock absorbing portion 202 is destroyed when a shock is applied. However, the shock absorber 202 is destroyed
It must be larger than the force for winding the wire W on the work K in FIG. In order to adjust the force required for this destruction, as shown in FIG.
02a. If the direction of the force at the time of winding the wire W and the direction of the force at the time of impact are different, considering the direction of the notch 202a, it is possible to make the structure more difficult to break during winding and easy to break during collision. It is possible. Further, the breaking force can be adjusted by changing the area and shape of the notch 202a in consideration of shear stress and the like.

The tip portion 203 of FIG. 3 corresponds to the tip portion of the nozzle 201, but its surface roughness is kept small so as not to damage the wire W, and it is finished smoothly by buffing, for example. A ceramic eyelet 204 or the like is attached to the tip 203,
The eyelets 204 are not damaged even when the wire W is discharged in any direction.

When the nozzle 201 shown in FIGS. 1 and 2 winds the work K in a winding pattern of a predetermined shape, the work K is set with a slight deviation from the work supporting portion 70, for example. In this case, the nozzle 201 may come into contact with or collide with the work K. In this case, for example, when the tip portion 203 of the nozzle 201 collides with a part of the work K, the impact absorbing portion 202 of FIG. 2 can absorb the impact force. Therefore, there is no fear that the entire nozzle 201 will be deformed due to the impact, and even if only the tip portion 203 is deformed, the tip portion 203 is deformed.
If only the nozzle 201 is replaced, the nozzle 201 can be used again. The wire W passes through the hollow portion of the cylindrical part 201 a and the hollow portion of the shock absorbing portion 202, and then the tip portion 203.
The direction is bent at 90 degrees via the pulley 203a of the above, and is led out to the outside via the eyelet 204.

Next, another embodiment of a nozzle (also called a flexible nozzle) will be described with reference to FIGS. The nozzle 1200 of FIG.
01, a shock absorbing portion 1202, a tip portion 1203, and the like. The support members 1201 and 1201 are long plate-shaped structures, and the support members 1201 and 1201 are arranged in parallel. The upper portions of the support members 1201 and 1201 are fixed by a mounting component 1260. The fixing component 1260 and the supporting member 1201 are fixed by the shock absorbing portion 1202. This shock absorber 1
A screw (bolt) 1300 is used as 202. An example of this screw 1300 is shown in FIGS.

The example of FIG. 6 is a normal screw 1300,
The screw 1300 shown in FIG. 7 has a partial cutout 1301 formed therein. On the other hand, the screw 1300 of FIG. 8 has a larger notch 1302 formed therein. As shown in FIG.
Although the screw 1300 has no cutout portion, the screw 1300 of FIG. 7 has a cutout portion 1301 and the screw 1300 of FIG. 8 has a larger cutout portion 1302. By adjusting the size of the cross-sectional area of the notch, it is possible to adjust the force against breakage. By adjusting the force against the destructive force depending on the size of the cutout portion, the shock absorbing portion 120
The shock absorbing power of 2 can be adjusted. The shock absorbing portion 1202 easily absorbs a shock in the front-rear direction (X direction) and has some strength in the left-right direction (Y direction). Support members 1201, 12
01 is a main structure of the nozzle 1200, and retains the rigidity of the nozzle.

The attachment part 1260 described above is a block for fixing the support members 1201 and 1201. The tip portion 1203 constitutes the tip portion of the nozzle 1200 and has a very simple shape.
Has 04. Since such a tip portion 1203 has a very simple shape, it is inexpensive when changing the eyelet 1204. The wire W passes through a hole (not shown) in the mounting component 1260, passes through the pulley 1221 between the support members 1201 and 1201, and is led out from the eyelet 1204 of the tip portion 1203 to the outside.

Next, FIG. 9 shows an embodiment of a comparatively thin nozzle of the present invention corresponding to the conventional nozzle shown in FIG. The nozzle 2201 has a tapered portion 2300.
And a shock absorbing portion 2400, a tip portion 2500, and the like. The taper portion 2300 is a main structure of the nozzle 2201 and retains the rigidity of the nozzle.

The shock absorbing portion 2400 has a tapered portion 2300.
Is a cylindrical member that connects the end part 2500 with the end part 2500.
FIG. 10 shows an example of this cylindrical shock absorbing portion 2400. The shock absorbing portion 2400 includes the female screw portions 2401 and 2402.
It has 402. These female screw parts 2401 and 24
02 are respectively located at the upper part and the lower part of the shock absorbing portion. A thin portion 2403 is provided at the center of the shock absorbing portion 2400.
Are formed. The thickness t of the thin portion 2403 is smaller than the thickness T of other portions.

When the nozzle 2201 collides with the work K, for example, the shock absorbing portion 2400 shown in FIG.
The thin-walled portion 2403 of FIG. Since the thin portion 2403 is formed along the entire circumference of the impact absorbing portion 2400, it is possible to cope with impacts from all directions. The wire W is drawn downward through the hollow part of the taper part, the hollow part of the shock absorbing part 2400, and the outlet 2510 of the tip part 2500.

As described above, in the embodiment of the present invention, even if an expensive nozzle collides with a work or the like, it is not broken, and the running cost is reduced. Further, the recovery after the collision is quickened, and the stop time of the machine such as the winding machine can be shortened. In addition, when an unskilled worker performs a task such as teaching, there is a high possibility that the nozzle will collide, but in reality, there is no need to worry about breaking the nozzle, which reduces the psychological burden on the instructor and reduces Suitable for use. Since the tip is attached via the collision absorbing part, it is possible to change the thickness and type of the wire to be used (that is, change the model of the work piece) simply by changing the tip. Technical examination is easy.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment,
Although the nozzle of the present invention is applied to the case where the wire rod is wound around the deflection yoke for the cathode ray tube, the present invention is not limited to this and the present invention is also applied to a nozzle that supplies the wire rod to another work. be able to.

[0028]

As described above, according to the present invention,
Even when the nozzle collides with the work or the like, it is possible to prevent the deformation by absorbing the impact of the collision.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a winding machine including a nozzle of the present invention.

FIG. 2 is a view showing an example of the winding machine and the work shown in FIG.

FIG. 3 is a diagram showing Embodiment 1 of the nozzle of the present invention.

FIG. 4 is a diagram showing an example of a shock absorbing portion according to the first embodiment of FIG.

FIG. 5 is a diagram showing Embodiment 2 of the nozzle of the present invention.

FIG. 6 is a diagram showing an example of a shock absorbing portion according to the second embodiment of FIG.

FIG. 7 is a diagram showing another example of the shock absorbing portion according to the second embodiment of the present invention.

FIG. 8 is a diagram showing an example of still another shock absorbing portion according to the second embodiment of the present invention.

FIG. 9 is a view showing still another embodiment 3 of the nozzle of the present invention.

FIG. 10 is a diagram showing an example of a shock absorbing portion according to the third embodiment of FIG.

FIG. 11 is a diagram showing an example of a conventional nozzle.

FIG. 12 is a view showing another conventional nozzle.

[Explanation of symbols]

 201 Nozzle 201a Cylindrical part 202 Impact absorbing part 203 Tip part 204 Eyelet W Wire rod

Claims (4)

[Claims] 1. A nozzle for supplying a wire to a work, comprising a shock absorbing portion for absorbing a shock at the time of collision. 2. The shock absorbing portion includes a cutout portion.
Nozzle for supplying the wire rod according to. 3. The shock absorbing portion is a screw for connection,
The wire rod supply nozzle according to claim 1, wherein a cutout portion is provided in the middle of the screw. 4. The nozzle for supplying a wire according to claim 1, wherein the shock absorbing portion is a hollow member having a thin portion in a part thereof.