KR940001221A

KR940001221A - Shadow mask welding device of color CRT

Info

Publication number: KR940001221A
Application number: KR1019920010305A
Authority: KR
Inventors: 이중원
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-06-13
Filing date: 1992-06-13
Publication date: 1994-01-11

Abstract

본 발명은 칼라브라운관의 새도우 마스크 용접장치에 관한 것으로. 프레스 패드 압력에 의한 새도우 마스크의 변형을 방지하고 반복작업에 따라 발생하는 작업오차를 프레스 패드 자체내에서 흡수하여 불량율을 감소시키기 위한 것이다.The present invention relates to a shadow mask welding device of a color brown tube. It is to prevent the deformation of the shadow mask due to the press pad pressure and to reduce the defective rate by absorbing the work error generated by the repetitive work in the press pad itself.

종래에는 새도우 마스크에 가해지는 압력이 프레스 패드 자중뿐만 아니라 이를 이유동시키는 에어 실린더의 하강 압력도 함께 미치게 되어 새도우 마스크의 변형을 유발 하였으나 본 고안은 이를 위하여 프레스 패드(2)상에 복수의 가이드(11)를 수직으로 돌출 형성하고 실린더 축(4A)과 일체로 된 베이스 플레이트(8)에 가이드 공(10)을 형성하여 가이드(11)가 가이드 공(10)에 끼움되어 프레스 패드(2)가 새도우 마스크(5)에 밀착할시 패드 자체 무게만이 가해지도록 한 발명이다.Conventionally, the pressure applied to the shadow mask causes not only the press pad self-weight but also the downward pressure of the air cylinder for weaving it, causing deformation of the shadow mask. 11) protrudes vertically and forms a guide ball 10 in the base plate 8 integral with the cylinder shaft 4A so that the guide 11 is fitted in the guide ball 10 so that the press pad 2 In close contact with the shadow mask 5, only the pad itself is weighted.

Description

Shadow mask welding device of color CRT

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 의한 프레스 패드의 제1실시예를 나타낸 단면도,4 is a cross-sectional view showing a first embodiment of a press pad according to the present invention;

제5도는 본 발명에 의한 프레스 패드의 제2실시예를 나타낸 단면도,5 is a cross-sectional view showing a second embodiment of a press pad according to the present invention;

제6도는 본 발명에 의한 프레스 패드의 제3실시예를 나타낸 단면도,6 is a cross-sectional view showing a third embodiment of the press pad according to the present invention;

제7도는 본 발명에 의한 프레스 패드의 제4실시예를 나타낸 단면도.7 is a sectional view showing a fourth embodiment of a press pad according to the present invention.

Claims

A shadow mask welding apparatus having a press pad (2) for closely supporting a shadow mask (5) on a jig (1) while moving up and down by an air cylinder (4), wherein the shadow pad (5) is pressed against a press pad (2). A plurality of guides 11 are projected on the press pad 2 so that only their own weight is applied, and a guide ball 10 having a bearing 9 is formed in the base plate 8 to form the guide 11. ) Is fitted into the guide ball (17). Shadow mask welding device of a color CRT characterized by being able to move downwards.

The collar according to claim 1, wherein the guide 11 is formed outside the upper portion of the press pad 2 so that the guide 11 can move up and down along the outer surface of the base plate 8 provided with the bearing 9A. CRT shadow mask welding device.

The method of claim 1. A flaw 13 is formed on the outer circumferential surface of the press pad 2 so as to have a flange 13 around the upper end and the base plate 8 is " &Quot; Shape mask welding apparatus of a color CRT tube, characterized in that it is formed in the form of a " clamp "

4. A shadow mask welding device for a color CRT tube according to claim 3, wherein a spring (14) is provided between the press pad (2) and the base plate (8).

※ Note: The disclosure is based on the initial application.