CN1056950A - Shadow mask frame welding apparatus for cathode ray tube - Google Patents
Shadow mask frame welding apparatus for cathode ray tube Download PDFInfo
- Publication number
- CN1056950A CN1056950A CN91102509A CN91102509A CN1056950A CN 1056950 A CN1056950 A CN 1056950A CN 91102509 A CN91102509 A CN 91102509A CN 91102509 A CN91102509 A CN 91102509A CN 1056950 A CN1056950 A CN 1056950A
- Authority
- CN
- China
- Prior art keywords
- shadow mask
- actuating arm
- driver
- guide post
- ray tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Resistance Welding (AREA)
Abstract
CRT shadow mask framework welding equipment comprise actuating arm is arranged (15a) driver (15), be fixed on the driver (15) one or a pair of guide post (14), by installation make reliable actuating arm (15a) displacement grounding electrode (17), be installed in charged electrode head (13) on the guide post (14), allow actuating arm (15a) and the eyelid retractor (17a) of guide post (14) slip and the base (11) that supports all members.In this equipment, two electrode (17,13) precise contact position (solder joint) are control automatically by the location of thing to be welded, thereby eliminated for example extra load effect of contact impact.
Description
The present invention relates to a kind of CRT shadow mask framework welding equipment, more particularly, relate to a kind of energy and make the shadow mask that causes because of welding pressure and the irregular deformation of framework be minimum electric welding equipment.
The shadow mask of color cathode ray tube as shown in Figure 1 is a kind of so colored grid of selecting, it by the inboard studs of settling 13 in the shirt rim 11 of screen dish 10 hang framework 30 fix in position of holding extension, place screen to coil before formed strip of 10 back side inner surfaces or the punctate fluorescence material phosphor screen 12.
As shown in Figure 2, it is fixed to one another that shadow mask 20 and framework 30 usefulness points are welded in solder joint 90 places.As shown in Figure 3, now also fixed to one another between shadow mask and the framework in relatively large color cathode ray tube by solder joint 90 ' usefulness spot welding mode, therefore, the shirt rim of shadow mask 20 be insertion framework 30 ' in.
As shown in Figure 4, an example that has shown the common welding equipment that is used for fixing above-mentioned shadow mask and framework.
In this welding equipment, guaranteed the location of framework 30 by spring 6 by the location shotpin 3 that stretches out on the eyelid retractor 3a.For carry electrode head 4, an air impeller 5 has been installed, its actuating arm 5a is by 6 biasings flexibly of the compression spring on the bracing frame 6a.At the middle part of drive arm 5a, the electrode tip 4 of the shape that meets at right angles is placed in the inner surface place near the shirt rim of framework 30.
Be the course of work of common shadow mask frame welding equipment below.At first, before welding, add the low-voltage that big electric current can be provided at framework 30 and 4 of electrode tips, simultaneously, by making welding process be in the preparatory stage to driver 5 supply compressed air.When temporarily cutting off compressed air when supply, actuating arm 5a move at once because of the unloading of compression spring 6, makes that being fixed on electrode tip 4 on the arm 5a welds the shirt rim of shadow mask 20 and be fixed on the inner edge of shirt rim of framework 30.Therefore, contact point forms the low resistance conductive path that produces heat-flash, and this heat is welding in framework 30 on the contact point.After this, supply compressed air once more, make the actuating arm 5a of driver 5 overcome the compression stress of compressing spring 6 and the initial position of getting back to it driver 5.Simultaneously, the welding position of shadow mask and framework solidifies, and makes them together secured to one another.
In above-mentioned common shadow mask frame welding equipment, carry out resistance welded in such a way, promptly electrode tip 4 is moved by the compression stress of spring 6.Yet common welding equipment has a problem, and promptly when electrode tip 4 contacted with framework with the shirt rim of shadow mask 20, the power of spring 6 can cause a big impact.
Therefore, as shown in Figure 5, when impact is added to welding portion, can cause the shirt rim of shadow mask 20 and the distortion of framework 30.If this deformation effect passes through the surface to the electron beam of shadow mask 20, will make electron beam through-hole that abnormal distortion like this takes place, so that cathode ray tube can not obtain good image quality.
Therefore, an object of the present invention is to provide a kind of shadow mask frame welding equipment that is used for cathode ray tube, it improves through like this, thereby can not cause the distortion of shadow mask and framework in the middle of welding.
Another object of the present invention provides a kind of shadow mask frame welding equipment, and it has prevented the degenerating of the cathode ray tube image quality that distortion caused of shadow mask and framework in the welding process.
For achieving the above object, the present invention includes:
A driver, it has the actuating arm of action in the horizontal;
Be fixed on the driver and be parallel to or a pair of guide post that actuating arm extends;
A grounding electrode makes it can be driven arm by installation and is shifted;
A charged electrode head, it is installed on the guide post, with grounding electrode relative configuration on same axis;
An eyelid retractor, it allows actuating arm, guide post and driver transverse movement; And
Support the base of all members.
By the detailed description of with reference to the accompanying drawings most preferred embodiment of the present invention being done, above-mentioned purpose of the present invention and other advantage will be more clear.In the accompanying drawing:
Fig. 1 is the sectional view that the common color cathode ray tube of shadow mask-frame assembly has been installed;
Fig. 2 is the enlarged drawing of part A among Fig. 1;
Fig. 3 is the enlarged drawing that has shown in the another kind of shadow mask-frame assembly corresponding to part A;
Fig. 4 is the end view of common shadow mask frame welding equipment;
Fig. 5 is the sectional view and an one part of amplifying of shadow mask-frame assembly, and this assembly is fixed by shadow mask frame welding equipment welding cathode ray tube, common that is used for shown in Figure 4.
Fig. 6 is the end view according to CRT shadow mask framework welding equipment of the present invention;
Fig. 7 is the end view that shows the work of shadow mask frame welding equipment shown in Figure 6.
In Fig. 6, diagram ground has shown the shadow mask frame welding equipment that is used for cathode ray tube according to of the present invention.
The structure of this welding equipment is: the actuating arm 15a that is parallel to driver 15 at 15, two guide posts 14 of installation of driver on the fixed head 16 extends on the plate 16 and is fixed.Actuating arm 15a and guide post 14 so are installed, but are made their transverse movement and slips in U-shaped eyelid retractor 12, eyelid retractor 12 has from base 11 vertically extending two columns.Supporting bracket 17a is fixed on the actuating arm 15a, and guide post 14 is by supporting bracket 17a, and is parallel to arm 15a in the upper end of supporting bracket 17a grounding electrode 17 is set.In addition, charged electrode head 13 is positioned on same the axis with grounding electrode 17, and passes through another supporting bracket 14a in the opposite end of guide post 14.
The right column 12b of U-shaped eyelid retractor 12 places between supporting bracket 17a and the fixed head 16, and left column 12a places between supporting bracket 14a and the supporting bracket 17a.Location shotpin 18 is installed in the top of right column 12b, contact with the fixed head 16 that driver 15 has been installed with the supporting bracket 17a of grounding electrode 17, location shotpin 18 has maintained the minimum range between fixed head 16 and the supporting bracket 17a, has prevented that the chance of supporting bracket 17a from moving.
Be the working condition that is used for the shadow mask frame welding equipment of cathode ray tube according to of the present invention below.
At first, driver 15 on being installed in fixed head 16 is during by hydraulic-driven, actuating arm 15a withdrawal, the supporting bracket 17a that is connected to both grounding electrodes 17 of drive arm 15a and fixed head 16 contacts with location shotpin 18, and flatly slides till supported device 12 preventions.So, charged electrode head 13 and grounding electrode 17 separating mutually with a specific interval like that as shown in Figure 6.
At this moment, be placed in the shirt rim of shadow mask 20 together and framework 30 between charged electrode head 13 and grounding electrode 17 temporarily.Then, driver 15 is reversed driving, and actuating arm 15a stretches out.Thereby, the supporting bracket 17a of the grounding electrode 17 that is connected with actuating arm 15a is at first moved forward along guide post 14, subsequently, stop motion when the grounding electrode of supporting bracket 17a upper end contacts with the outside of framework 30.And then, driver 15 withdrawals.Therefore, fixed head 16 separates with it once contact location shotpin 18.Because driver 15 continues retraction, charged electrode head 13 is with regard to the inner surface near the shadow mask 20 that is placed in framework 30 temporarily.At last, as shown in Figure 7, the shirt rim of shadow mask 20 and framework 30 are pushed down at charged electrode head 13 and 17 of grounding electrodes.So the shirt rim of shadow mask 20 and framework 30 are welded together with low-voltage and high-current by electrode 13 and 17.
After having finished shadow mask and framework fixing, reverse drive actuating arm 15a is withdrawn in the driver 15 it, and the shadow mask frame welding equipment is got back to initial condition shown in Figure 6.
The shadow mask frame welding equipment that is used for cathode ray tube is characterised in that it makes the nearly grounding electrode of charged electrode head rest, and but two electrode precise contact position (solder joint) according to the location of thing to be welded and control automatically.Therefore, solder joint does not bear extra load, so shadow mask and framework are not out of shape because of extra load (impacting specifically) effect.
Claims (2)
1, a kind of shadow mask frame welding equipment that is used for cathode ray tube is characterized in that comprising:
A driver (15), it has the actuating arm (15a) of action in the horizontal;
Be fixed in described driver (15) and go up and be parallel to one or a pair of guide post (14) of described actuating arm (15a) extension;
A grounding electrode (17) can be shifted it by described actuating arm 15a by installation;
A charged electrode head (13), it is installed on the described guide post (14), and with described grounding electrode (17) relative configuration on same axis;
An eyelid retractor (17a), it allows described actuating arm (15a), described guide post (14) and described driver (15) transverse movement; And
Support the base (11) of all above-mentioned members.
2, CRT shadow mask framework welding equipment as claimed in claim 1 is characterized in that, a location shotpin (18) is set between described driver (15) and the described grounding electrode (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900007164U KR920007279Y1 (en) | 1990-05-25 | 1990-05-25 | Apparatus for welding frame of shadow mask in cathode ray tube |
| KR7164/90 | 1990-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056950A true CN1056950A (en) | 1991-12-11 |
| CN1023526C CN1023526C (en) | 1994-01-12 |
Family
ID=19299159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91102509A Expired - Fee Related CN1023526C (en) | 1990-05-25 | 1991-04-15 | Shadow mask frame welding apparatus for cathode ray tube |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR920007279Y1 (en) |
| CN (1) | CN1023526C (en) |
| MY (1) | MY104812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057862C (en) * | 1998-05-18 | 2000-10-25 | 徐冰 | High-reliability method for welding between shadow mask frames of color kinescope |
| CN104938036A (en) * | 2013-01-24 | 2015-09-23 | 克里公司 | LED lighting apparatus for use with AC-output lighting ballasts |
-
1990
- 1990-05-25 KR KR2019900007164U patent/KR920007279Y1/en not_active IP Right Cessation
-
1991
- 1991-04-04 MY MYPI91000560A patent/MY104812A/en unknown
- 1991-04-15 CN CN91102509A patent/CN1023526C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057862C (en) * | 1998-05-18 | 2000-10-25 | 徐冰 | High-reliability method for welding between shadow mask frames of color kinescope |
| CN104938036A (en) * | 2013-01-24 | 2015-09-23 | 克里公司 | LED lighting apparatus for use with AC-output lighting ballasts |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920007279Y1 (en) | 1992-10-09 |
| MY104812A (en) | 1994-05-31 |
| KR910020991U (en) | 1991-12-20 |
| CN1023526C (en) | 1994-01-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |