Method and apparatus for mfg. colour selecting electrode of colour CRT

A technology for cathode ray tubes and manufacturing devices, which is applied in the direction of non-luminescent electrode manufacturing and measurement/testing in the manufacturing process, and can solve problems such as complexity and large-scale

Inactive Publication Date: 2004-02-18
MITSUBISHI ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

linked in Figure 8 , 9 The mechanism on the pillar 10 shown in will be further complicated and enlarged

Method used

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  • Method and apparatus for mfg. colour selecting electrode of colour CRT
  • Method and apparatus for mfg. colour selecting electrode of colour CRT
  • Method and apparatus for mfg. colour selecting electrode of colour CRT

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Embodiment Construction

[0040] Below, refer to Figure 1 ~ Figure 3 Embodiments of the present invention will be described in detail. in addition, Figure 1 ~ Figure 3 , against the above Figure 4 ~ Figure 12 The same reference numerals are assigned to elements that are the same as or correspond to elements shown in .

[0041] figure 1 It is a perspective view showing the structure of a manufacturing apparatus for a color selection electrode according to an embodiment of the present invention. In this figure, 3a is a frame member, 3b is an elastic member connecting a pair of frame members 3a, 4 is a roller electrode, 6 is a roller electrode lifting mechanism, 7 is a measuring device for measuring the shape of the frame member 3a, and 8 is a control diagram. In the XYZ coordinate system of the roller electrode 4 in the rotation direction of the X-axis deviation of the rotation direction drive mechanism, 9 is the Y direction drive mechanism, 10 is the pillar, 11 is the elevating mechanism of the ...

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PUM

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Abstract

Provided is a method and a device of manufacture for a color cathode-ray tube in which a precise welding track requiring little time can be obtained to the frame part having weak rigidity, and thereby the color selection electrode can be manufactured efficiently. The manufacturing method comprises a process of applying a force to a plurality of loading points Fi (i= 1, 2, to n) established at a pair of side parts (3a) of a frame in the direction in which the pair of side parts mutually approach, a process in which a welding trajectory X'i (i= 0, 1, 2, to n+1) is calculated by measuring the positions of a plurality of measuring points Xi (i=1, 2, to n ) established at the side parts, and a process of welding the color selection electrode element and the side parts by a welding electrode moving along the calculated welding trajectory. The above measuring points are established in the vicinity of the above loading points.

Description

technical field [0001] The invention relates to a manufacturing method and a manufacturing device of a color selection electrode of a color cathode ray tube. Background technique [0002] Figure 4 An example of the structure of a color selection electrode of a color cathode ray tube is shown in . In this figure, the color selection electrode 1 will be formed with a plurality of slots 2a ( Figure 5 ) or hole 2b ( Figure 6 ) The color selection electrode element 2 composed of a thin metal plate is welded and fixed to the frame 3 formed in a substantially square shape while applying a predetermined tension. The color selection electrode element 2 is welded on a surface having a curvature toward the length direction of the frame member 3a. A color selection electrode element 2 having slots 2a is called an aperture grid type, and an element having holes 2b is called a shadow mask type. In order to prevent the deterioration of the image quality or image disturbance of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/42H01J9/14
Inventor 筒井一就浅野聪也叶影秀德塚崎岳北村寿朗牧野惠三河嵜贵文三村诚一大江慎一西野裕久松永泰彦
Owner MITSUBISHI ELECTRIC CORP
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