KR900002121Y1 - Rotation adjustment device for collar water pipe - Google Patents

Abstract

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Description

Rotation adjustment device for collar water pipe

1 shows a conventional rotation apparatus.

2 and 4 are views showing an embodiment of the present invention.

3a to 3d show a burn image;

* Explanation of symbols for main parts of the drawings

1: sealing head 4: spindle

5: laser oscillator 6: beam light

7: camera 8: monitor

9: correction mechanism 10: guide plate

12 gauge 13a, 13b through hole

16: valve support 17: handle for rotation

18: worms 19: worms mechanism

20: mount structure 21: valve

23: neck chuck 24: monitor

26: spindle rotation correction mechanism

The present invention relates to a rotation adjusting device in the combination of a valve and a mount structure in the sealing process of a color CRT.

Conventionally, this type of adjusting device is a rotating table 3 in which a mounting structure (i.e., an electron gun) 20 fixes the supporting rod 2 supporting the sealing head 1, as shown in FIG. And the main shaft 4 which synchronously rotates and slides up and down. The beam light 6 from the laser oscillator 5 passes through the reference hole of the mount structure 20 and is then taken to the camera to be photographed, and the monitor ( The diffraction image is depicted in FIG. 8 and the shape is observed to correct the position of the mount structure 20 by the correction mechanism 9. On the other hand, the valve 21 was positioned by a reference point 22 provided on the valve outer surface and a plurality of guide pins 10 provided on the sealing head 1.

According to the above method, the positional accuracy between the mount structure and the valve is secured, but the positional accuracy between the shadow mask and the mount structure in the valve is affected by the combined precision between the mask and the valve assembled to the valve, The generated beams may not be combined at a predetermined angle with respect to the mask and the panel fluorescent surface, resulting in a defect that is not combined with good accuracy.

The present invention is to fundamentally solve the above-mentioned drawbacks, while adjusting the mount structure to a predetermined position by a pattern of laser diffraction, simultaneously photographing a reference hole in the valve with a high-sensitivity camera, and rotating the valve unit to a predetermined position. It is to provide a rotation apparatus characterized by improving the combination accuracy of the mount structure and the valve, and improving the electrical characteristics such as beam rotation.

Hereinafter, a detailed description will be made based on the embodiments shown in FIGS. 2 to 4.

First, the position is detected using the gauge 12 in order to maintain the correlation position between the laser optical axis for position detection of the mount structure 20 and the mask reference hole imaging cameras 11a and 11b in the valve with good accuracy. As shown in FIG. 2, the gauge 12 has a face upper surface having through holes 13a and 13b corresponding to a mask reference hole, and three projection surfaces corresponding to the reference point 22 of the CRT. 14) and a square or round hole 15 corresponding to the reference hole of the mount structure. The central axis of this hole 15 is performed with high precision so that the straight line connecting the through holes 13a and 13b is coaxial with the straight line parallelly moved below.

When the gauge 12 is inserted into the valve support 16 of the encapsulation head 1, and the encapsulation head is held in position by a position detecting mechanism (not shown) of the encapsulation head, the beam emitted from the laser oscillator 5 is emitted. The light 6 is taken by the camera 7 through the through hole of the support rod 2 and the square or round hole provided in the gauge, and then the diffraction image is depicted on the monitor 8. When the diffraction image exhibits the same pattern as those in FIGS. 3A and 3B, the worm 918 and the valve support portion 16 directly connected to the handle 17 are operated by operating the handle 17 for rotation of the valve support 16. The valve support part 16 rotates by the worm gear 19 fixed to). Since the guide pin is fixed to the valve support part, the guide pin 10 also rotates simultaneously with the valve support part 16. By this operation, the gauge 12 is rotated, so that the patterns of FIGS. 3C and 3D are obtained, and the beam light axis and the square hole or the round hole 915 coincide coaxially.

In this state, the gauge is fixed by the neck chuck 23, and then the position adjustment of the two cameras 11a and 11b is performed.

First, the through hole 13a is photographed on the gauge face surface with the camera 11a, and the position of the camera 11a is adjusted so as to be located at the center line 25 of the two-split screen of the monitor 24, and the camera 11b. ), The positional adjustment is performed in the same manner as described above so that the correlation difference between the beam optical axis and the mask reference hole photographing camera is coaxially arranged with high accuracy.

Next, the Example in an actual sealing operation is demonstrated with reference to FIG.

After inserting the mount construct 20 into the main shaft 4, the beam 6 projected from the laser oscillator 5 is photographed with a camera 7, and the pattern depicted in the monitor 8 is shown in FIG. The adjustment is performed by the correction mechanism 26 that corrects the main shaft rotation so as to be in the state of FIG. 3D. Next, the mask reference holes 27a and 27b are photographed by the cameras 11a and 11b, and the valves are arranged so that the two round holes depicted in the two-split screen of the monitor 24 are arranged in the center line 25 of the screen. The handle 17 for rotation of the support is operated to place the valve at a normal position. By inserting the mount structure 20 into the valve neck in this state, the angular positions of the mount structure 20 and the mask and the panel fluorescent surface are combined with high precision.

As described above, the present invention enables the combination of high precision by the position detection method based on the mask host, compared to the combination by the indirect position detection method based on the conventional panel, and greatly improves the characteristics such as beam rotation. It can be improved.

Claims (1)

A valve support having a camera for photographing a mask reference hole, a monitor having a two-split screen defining the reference hole, a rotating mechanism for rotating the valve at an arbitrary angle, and detecting the rotation of the mount structure. And a laser oscillator, a camera for photographing beam minerals emitted from the laser oscillator, a monitor depicting a diffraction image of the beam light, and a correction mechanism for correcting the rotation of the mount structure. .