CN1545118A - Processing technique for straight tube necking glass cone for CRT - Google Patents
Processing technique for straight tube necking glass cone for CRT Download PDFInfo
- Publication number
- CN1545118A CN1545118A CNA2003101137465A CN200310113746A CN1545118A CN 1545118 A CN1545118 A CN 1545118A CN A2003101137465 A CNA2003101137465 A CN A2003101137465A CN 200310113746 A CN200310113746 A CN 200310113746A CN 1545118 A CN1545118 A CN 1545118A
- Authority
- CN
- China
- Prior art keywords
- neck
- cutting
- tube
- straight tube
- glass cone
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011521 glass Substances 0.000 title claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000011265 semifinished product Substances 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention is a cathode ray tube (CRT) straight tube neck glass cone manufacturing process method, mainly firstly binding the semi-finished glass cone and a neck tube with hydraucone together, and then processing them in working procedure of cutting tube into the straight tube neck glass cone. The working procedure of cutting tube: firstly using driving mechanism to drive cutter blade to cut the neck tube, then using fire to heat the cut position to achieve the purpose of cutting neck tube. After cutting, it polishes the notches by heating at high temperature. When cutting, it firstly uses cutter blade to turn the inner of the neck tube a circle, to make the neck tube generate partial stress, then properly heats the neck tube so that the part prestressed will automatically break. In this mode, only when cutting will it generate an error, avoiding many errors generated by traditional process so as to obviously enhance productivity and performance.
Description
Technical field
The invention belongs to the welding technology field of cathode-ray tube glass tube neck and glass awl, specially refer to a kind of technological method for processing of cathode-ray tube straight tube neck glass awl.
Background technology
In recent years, along with being growing more intense of market competition, the clients of glass bulb manufacturer have proposed many new technical needs one after another, and wherein the demand to straight tube neck glass awl is particularly strong.
In 2000, the method that industry is produced the straight tube neck generally was earlier neck to be cut into full-length, carries out sealing-in with cone again, adds the error that three aspects appear in trade union like this: the one, and during the neck cutting, the neck error in length; The 2nd, when cutting the microcephaly on the cone, envelope is wired to the reference line height error; The 3rd, when neck and cone sealing-in, the error that the sealing-in process produces.
Produce straight tube neck glass awl like this, precision is low, yields is low, and the process capability index of corresponding manufacturing procedure is also low.
Summary of the invention
The object of the present invention is to provide a kind of technological method for processing of straight tube neck glass awl, to overcome the weak point of above-mentioned process technology.This technological method for processing can improve the machining accuracy of straight tube neck glass awl, and is applicable to the technology of large-scale production.
To achieve these goals, technological method for processing of the present invention relies on following technical proposals to finish, a kind of technological method for processing of cathode-ray tube straight tube neck glass awl, it is characterized in that: be mainly earlier with semi-finished product glass awl be with bell-mouthed neck to seal, again semi-finished product after the sealing-in are become straight tube neck glass awl in the pipe cutter working procedure processing.Described operation at pipe cutter uses driving mechanism to drive the blade cuts neck earlier, is cut the place with the fire heating again, reaches the purpose of neck cutting.After the cutting, otch is polished by heat.The blade of described employing, its diameter D are that 5mm, thickness H are the diamond blade of 0.6mm.The described nozzles height H that is finished to use
1Be 7mm, diameter D
1Be 56mm, be respectively D at the diameter of nozzles
223mm, D
326mm, D
429mm and D
5There are four loop diameter D at the 32mm place
6Uniform for 20 apertures of 0.8mm, be divided into 18 ° mutually between per two apertures.
Advantage of the present invention and good effect:
This technological method for processing is with the awl of the intact neck of sealing-in, on pipe cutter neck is cut (as shown in Figure 1).During cutting, use blade (as shown in Figure 3) earlier, make it produce local stress, again neck is suitably heated, produce the position of stress in advance, will rupture automatically at inner car one circle of neck.Under this processing mode, only when blade cuts, produce an error, the multinomial error of avoiding conventional machining process to produce.The straight tube neck slope awl that uses this processes to go out, its height dimension precision reaches ± 0.1mm, and process capability index is that the production capacity of 2.3, three pipe cutting machines is 700 pieces/hour.So that production efficiency and performance all are significantly improved.
Description of drawings
Fig. 1 is with semi-finished product glass awl and with the structural representation of bell-mouthed neck when cutting.
Fig. 2 is for boring the semi-finished product glass and the structural representation that polishes with bell-mouthed neck after cutting.
Fig. 3 is the structural representation of diamond cut blade.
The fire nozzle structure schematic diagram that Fig. 4 uses for polishing.
Fig. 5 is the A-A cut-away view of Fig. 4.
1 is that motor output shaft, 2 is that cylinder, 3 is that knife bar, 4 is that guide rail, 6 is the diamond cut blade for heating duration and degree of heating, 5 among Fig. 1, and 7 is the polishing duration and degree of heating among Fig. 2.
Embodiment
The embodiment that provides technological method for processing of the present invention below with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 is as follows:
Earlier the semi-finished product glass awl of the good neck of sealing-in on the conveyer belt is placed into the lifting platform of pipe cutter by loading machine; Along with lifting platform rises, cone positions under the acting in conjunction of lifting platform and top stationary positioned device (wear-resisting graphite annulus) then; After the location finished, blade place driving mechanism drove diamond blade, implemented cutting at inboard wall of tube neck, but this moment, neck can't rupture, and only can produced local stress by application of force place; After blade rotates a circle, return the home position, heat duration and degree of heating then and lighted, cutting part is heated, neat fracture that pipe will be from the place of original generation stress (position of being streaked by blade); Add the oxygen flow that thermal-flame uses and be 1.5-2.5L/min, pressure is 4 ± 0.5Kg/cm
2, gas discharge is 1-2L/min, pressure is 0.65 ± 0.05Kg/cm
2
Owing to may produce burr at fracture during cutting, after cutting finishes, the glass awl enters down station, otch is implemented flame polish to be handled, polishing nozzles (as shown in Figure 4) should be apart from neck otch 10-15mm during polishing, flame (internal flame blue streak) length is 2-3mm, and flame envelope length is at 110-130mm, and oxygen pressure is 4 ± 0.5Kg/cm
2, gas pressure is 0.65 ± 0.05Kg/cm
2, polishing continues 8 ± 1.5Sec.Until here, the work of whole neck cutting action also just is through with.
Equipment, parts and material used in above embodiment are commercial prod.
Claims (4)
1. the technological method for processing of cathode-ray tube straight tube neck glass awl is characterized in that: be mainly earlier with semi-finished product glass awl be with bell-mouthed neck to seal, again semi-finished product after the sealing-in are become straight tube neck glass awl in the pipe cutter working procedure processing.
2. technological method for processing according to claim 1, described operation at pipe cutter uses driving mechanism to drive the blade cuts neck earlier, is cut the place with the fire heating again, reaches the purpose of neck cutting.After the cutting, otch is polished by heat.
3. technological method for processing according to claim 2 is characterized in that: the blade of described employing, its diameter D are that 5mm, thickness H are the diamond blade of 0.6mm.
4. technological method for processing according to claim 2 is characterized in that: the described nozzles height H that is finished to use
1Be 7mm, diameter D
1Be 56mm, be respectively D at the diameter of nozzles
223mm, D
326mm, D
429mm and D
5There are four loop diameter D at the 32mm place
6Uniform for 20 apertures of 0.8mm, be divided into 18 ° mutually between per two apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101137465A CN1545118A (en) | 2003-11-24 | 2003-11-24 | Processing technique for straight tube necking glass cone for CRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101137465A CN1545118A (en) | 2003-11-24 | 2003-11-24 | Processing technique for straight tube necking glass cone for CRT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1545118A true CN1545118A (en) | 2004-11-10 |
Family
ID=34336962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101137465A Pending CN1545118A (en) | 2003-11-24 | 2003-11-24 | Processing technique for straight tube necking glass cone for CRT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1545118A (en) |
-
2003
- 2003-11-24 CN CNA2003101137465A patent/CN1545118A/en active Pending
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |