JPH01239730A - Sealing jig for cathode-ray tube - Google Patents

Abstract

PURPOSE:To make it possible to use one jig for cathode-ray tubes of different size so as to reduce the space for manufacture by providing two pairs of alignment supporting and adjusting members on an alignment supporter. CONSTITUTION:On one side of an alignment supporter 12 are provided panel alignment supporting and adjusting members 13a-13c and funnel alignment supporting and adjusting members 14a-14c, and on the outer side panel alignment supporting and adjusting members 15a-15c and funnel alignment supporting and adjusting members 16a- are provided in 180 deg. rotated position. Supporting members 12a-12c are rotatable around the center of the setting hole and movable in horizontal direction against the jig body 20, and attached to the body 20 with setting bolts 9, and the supporting portion 12 is fitted and fixed to the body 20 at a specified position by a notched position 10 at the time of rotation movement. And by setting the respective supporting and adjusting members to the alignment ordinate points corresponding to the respective sizes of A and B types, and by rotating the supporter portion 12a-12c by 180 deg., the only one jig can be used commonly for cathode-ray tubes of every size.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sealing jig for bonding 11 panels and funnels of a cathode ray tube.

[Conventional technology]

First of all, the color cathode ray tube has panel 1 as shown in Figure 6.
and the funnel 2 are sealed with a flint glass 3, an electron gun 5 is sealed in the neck portion 4 of the funnel 2, and a color selective snow scraper is applied to the fluorescent surface formed on the inner surface of the face of the panel 1. A certain shadow mask (not shown) is arranged facing each other. Here, extremely high precision is required for the relative positions of the fluorescent surface, the shadow mask, and the electron gun 5, and this is a major factor that influences the operating characteristics of the color cathode ray tube. In other words, accurately aligning and sealing panel 1 and funnel 2 is one of the most important items in manufacturing a color cathode ray tube.In particular, in order to accurately align panel 1 and funnel 2, Three panel alignments 6 and three funnel alignments 7 are provided as reference points.

7 and 8 are a front view and a plan view for explaining the sealing of the cathode ray tube, and 20 is a jig body for sealing the panel L and the funnel 2, and lla to llc are three locations. These support parts 11a to llc are provided with panel alignment support adjustment members 13a to 13c1 and funnel alignment support adjustment members 14a to 14c.

17 is a yoke support portion, and 18 is a neck support portion.

Further, both the support adjustment members 13 a = l 3 c and 14a-14c are the alignment support members 11a to 1
1c, each of which is integrated, is provided with a fine adjustment mechanism (not shown) for adjusting the alignment of the panel and the funnel.

Next, the sealing process will be explained. When the funnel 2 coated with frit glass 3 is set in the jig body 20, 3
funnel alignment support adjustment member 14 a
-14c, the yoke support part 17, and the ivy support part 18 hold the funnel 2, and when the panel 1 is set on the funnel 2, the panel is held by the three panel alignment support adjustment members 13a to 13c. Thereafter, these are put into a heat treatment furnace, and the frit glass 3 is crystallized under preset sealing conditions (for example, 440'C), so that the panel 1 and the funnel 2 can be aligned and sealed.

[Problem to be solved by the invention]

Since the conventional sealing jig is configured as described above, the panel, funnel alignment support parts 11a to 11C,
The yoke support part 17 and the neck support part 18 are fixed to the jig main body. Therefore, the above-mentioned jig is a dedicated jig corresponding to each size of cathode ray tube. For this reason, as the sizes of color cathode ray tubes become more diverse, special sealing jigs must be prepared for each type of color cathode ray tube, which, combined with the trend toward larger sizes, increases equipment costs and requires a large amount of storage space. there was.

This invention was made to solve the above-mentioned problems, and it is a cathode ray that allows cathode ray tubes of different sizes to be shared in one jig, and that reduces equipment costs and saves space. The purpose is to obtain a pipe sealing jig.

[Means to solve the problem]

The sealing jig according to the present invention is provided with two movable alignment supports for different alignment positions of the panel and the funnel on the jig main body.

[For production]

In this invention, alignment can be achieved by replacing the alignment support part with respect to the jig main body depending on the alignment position of the panel and the funnel.

This makes it possible to seal cathode ray tubes of different sizes with one jig.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
Figures 1 and 2 show a front view and a plan view of the cathode ray tube sealing jig according to the present invention in use, and 12a to 12c are alignment support parts that are in contact with the alignment between the panel l and the funnel 2, This alignment support part 12
On one side, panel alignment support and adjustment members 13a to 13c and funnel alignment support and adjustment members 14a to 14c are provided, similar to the conventional example shown in FIGS. Panel alignment support adjustment members 15a to 15c and funnel alignment support adjustment members 16a to 16c are provided. As shown in FIG. 3, the alignment support parts 12a to +2c are rotatable in the horizontal direction about a set 68 with respect to the jig body 2o, and are supported by the jig body 20 with set bolts 9. In addition, alignment support parts 12a to 1
A notch 1o is formed in the surface of the jig 2c that contacts the jig main body 20, so that when the jig main body 20 is rotated, the alignment support part can be engaged and fixed at a predetermined position with the jig main body 20.

Next, an example of use of the sealing jig according to the present invention will be explained. FIG. 4 shows the planar alignment position, yoke position, and neck position of two cathode ray tubes A and B of different sizes. The yoke and neck position are often the same. That is, in Fig. 4, the A-size and B-size cathode ray tubes have the same support points for the yoke and neck, and only the alignment point differs.
For example, considering alignment points, the coordinates of alignment point aA of size A and alignment point a of size B are (XA, FA) and (Xll+y,), respectively.

FIG. 5 is a front view of cathode ray tubes of sizes A and B with different heights, and in this case also the yoke.

The neck support point is common, and only the height of the alignment support point changes. For example, when the yoke support point is set to zero, the coordinates of the funnel alignment point for size A and B cathode ray tubes are (Xs, za ),
(xm, za), that is, for sizes A and B, the yoke position and neck position are common in both the plane direction and the height direction, and only the alignment position is determined as a different point as the x, y, and z coordinates.

That is, in the sealing jig according to the present invention, since the alignment support section is equipped with two pairs of alignment support adjustment members, each alignment support adjustment member is
By setting alignment coordinate points corresponding to size and B size in advance, cathode ray tubes of size A and B can be shared by one jig by rotating the alignment support parts 12a to 12c by 180 degrees.

In addition, in the example, the alignment support part is arranged in two directions (180
Although the explanation has been made regarding movement in three directions (rotation of 120 degrees) and four directions (rotation of 90 degrees). Furthermore, the alignment support section can be rotated not only in the horizontal direction but also in the vertical direction.

〔Effect of the invention〕

As explained above, according to the present invention, a plurality of alignment support parts having different alignment positions can be rotatably moved on the jig main body, so that one jig can seal the panels and funnels of cathode ray tubes of different sizes. can be dressed. Furthermore, being able to use one jig in common has the effect of reducing equipment costs and saving space.

[Brief explanation of the drawing]

1 and 2 are a front view and a plan view of a sealing jig for a cathode ray tube according to an embodiment of the present invention in use, FIG. 3 is a sectional view of the rotation mechanism of the alignment support, and FIG. Figure 5 is a plan view and front view of cathode ray tubes of different sizes, Figure 6 is a perspective view of a general color cathode ray tube, and Figures 7 and 8 are front views of a conventional sealing jig in use. FIG. 1 and panel, 2... funnel, 4... neck, 8
...Set hole, 9...Set bolt, 12a-12
c... alignment support section, 13a to 13c, 15a
~15c... Panel alignment support adjustment member, 14
a-14c-, l 6 a ~ 16 c -- Funnel alignment support adjustment member, 17 -- Yoke support section, 1st -- Neck support section, 20 -- Jig main body. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa Fig. 1 Fig. 2 Fig. 12a, 12b, 12c: Alignment support part Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7

Claims (1)

[Claims] A cathode ray tube sealing jig having an alignment support part that supports alignment provided on a panel and funnel of a cathode ray tube, a yoke support part that supports a yoke part of a cathode ray tube, and a neck support part that supports a neck part. In,
A sealing jig for a cathode ray tube, characterized in that the alignment support part is rotatably supported on a jig main body so as to be rotatably movable according to the alignment positions of the panel and the funnel.