CN101367603B - Secondary bending and molding method and device for fluorescent lamp slice pipe - Google Patents
Secondary bending and molding method and device for fluorescent lamp slice pipe Download PDFInfo
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- CN101367603B CN101367603B CN2008101233732A CN200810123373A CN101367603B CN 101367603 B CN101367603 B CN 101367603B CN 2008101233732 A CN2008101233732 A CN 2008101233732A CN 200810123373 A CN200810123373 A CN 200810123373A CN 101367603 B CN101367603 B CN 101367603B
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- 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
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Abstract
The invention relates to a rib tube bending forming method and a device for a fluorescent lamp bending in two directions, which is characterized in that the rib tube is firstly bent into a similar U shape, then is shaped by folding shaping dies at two sides, and pressed and bent for molding by oppositely closing the dies. The qualified rate of the U-shaped glass tube conforming to the molding shape in a next compression bending procedure is greatly improved, the qualified rate of the molding shape can be improved by about 15 percent to 30 percent according to different tube diameters, and especially for large tube diameter such as phi is more than or equal to 12mm, the qualified rate of molding shape can be basically equal to that of a small tube diameter. The invention overcomes the defects that after the rib tube is firstly bended into the similar U shape, low qualified rate of the shape leads to low qualified rate of secondary compression bending molding, and finally results in low rate of finished product of bent tubes, and the waste of the glass tubes is large, thereby greatly reducing the tube consumption of bent tubes so as to reduce the production cost. The invention has simple structure, and can be used for bending other tubes such as plum blossom lamp rib tubes bending in two directions by replacing oppositely closing shaping and compression bending dies.
Description
Technical field
The present invention relates to a kind of fluorescent lamp slice pipe bending and molding method and device, especially about having both direction bending for example ball type fluorescent lamp sheet canal curvature forming method and device.
Background technology
Compact energy-saving fluorescent lamp all be the glass straight tube bending by will be long, and again by connecing the one end fluorescent lamp that bridge constitutes, common for example has: H shape, U-shaped, D shape, volution, quincunx, sphere etc.In various compact energy-saving fluorescent lamps, count quincunx, spherical, the moulding of petal matrix canal curvature is the most difficult, its needs through twice two different directions brake formings.Chinese patent CN2610489, the CN3344198 of its shape of plum blossom lamp such as contriver's application, its shape of globular light such as Chinese patent CN2505980, CN2582160, CN3303962, CN3171922, CN3585077, CN2561093, CN1674197, CN1830059 etc. are described, twice bending of its sheet Guan Douxu both direction promptly earlier becomes U or shape U-shaped like (hereinafter to be referred as U-shaped like) with the glass straight tube bending, again the U-shaped like that curves bent into final form by mould.For example Chinese patent CN1528690 is described, and elder generation fuses the big section in glass straight tube middle part softening, bends to U-shaped like, will bend the U-shaped like bent into shape by involutory bending die then.This kind forming method, because of big section fuses softening (varying in size according to combination light, fuse softening length at 10-30cm, account for sheet pipe length of straight pipe 2/3 and more than), wall thickness of glass tube is inevitably inhomogeneous, and fuse combustion gas in the duration and degree of heating, air, oxygen arbitrary inhomogeneous, etc. all multifactor impacts, straight tube bending becomes U-shaped like can produce the irregularity deviation, do not meet the press-bending die cavity and go into the mould requirement, it is not high to cause bend pipe to go into the mould qualification rate, thereby cause crooked yield rate lower, the following glass-tube of Ф 12mm is gone into mould rate qualification rate about about 80%, Ф 〉=12mm goes into the mould qualification rate and is not higher than 70%, the bend pipe yield rate is low, has increased the glass-tube waste, has strengthened the fluorescent tube manufacturing cost.
Summary of the invention
The present invention's first purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of bending forming to go into the high fluorescent lamp slice pipe second order buckling forming method of mould qualification rate.
The present invention's second purpose is to provide a kind of shaped device of aforesaid method.
The present invention's first purpose realizes, main improve be straight tube fuse softening bend to U-shaped like after, make it regular by the involutory shaping mould in both sides, make it to meet bending die and go into the mould requirement, and then close up press-bending by bending die, thereby improved enter bending die after the bending for the first time go into the mould qualification rate, realize the object of the invention.Specifically, fluorescent lamp slice pipe second order buckling forming method of the present invention comprises fusing softening to straight shape glass-tube central section, bend to U-shaped like, the involutory bent into shape of mould is after it is characterized in that bending to U-shaped like, close up shaping by the both sides shaping mould, then by the involutory bent into shape of mould.
Straight tube bending of the present invention becomes U-shaped like, and according to moulding rear panel tube shape difference, crooked U-shaped changes to some extent, and this is a prior art.
The involutory press shaping die shape of described mould also requires according to last lamp tube formation and different, is similarly prior art.
Said U-shaped like, also different according to last moulding lamp tube shapes, comprise regular U-shaped and non-regular U-shaped, for example circular arc round etc.
The both sides shaping mould closes up shaping, can be that vertical shaping mould closes up shaping, also can be that tilting shaping mould closes up shaping, can carry out shaping to side and bottom simultaneously.
The present invention's second purpose realizes, fluorescent lamp slice pipe second order buckling shaped device comprises glass straight tube heating softening device, bends to U-shaped like device and involutory bending and forming mould, it is characterized in that involutory bending and forming mould both sides have can separate/close up, to crooked U-shaped like glass-tube shaping mould.
Glass-tube heating softening device of the present invention for by a thermoplastic glass-tube, can adopt prior art glass-tube heating softening device, roll as two supports as described in the Chinese patent CN1528690 advance, flame fuses softening installation; Or other glass-tube heating softening devices of prior art, these are prior art.
Separate/closing up of involutory shaping mould, can be similar with involutory bending die, adopt telescoping cylinder (for example cylinder), mechanical arm, rack-and-pinion etc. can realize the mechanism that separate/closes up, this is a prior art.
Separate/close up shaping mould, a kind of better is to make two sectional dies be tilting, can carry out shaping to crooked glass-tube side and bottom simultaneously like this.Certainly also can adopt in crooked glass-tube bottom shaping mould moving up and down is set, to crooked glass-tube bottom shaping for the first time, the bottom shaping can be to carry out after the shaping of side, also can carry out view apparatus and bend situation and decide with the side shaping synchronously.
In addition, for improving the accuracy that bends the shaping of similar U type glass-tube for the first time, guarantee that high bend pipe goes into the mould qualification rate, the present invention is a kind of better to be that involutory shaping mould closes up face (contact glass-tube face), has and inner cavity that crooked glass-tube sidepiece coincide.For reducing cold mould to bending the explosion of thermal ampoule, a kind of better is that involutory shaping mould is provided with heating unit, for example electrothermal tube, silk, and the heat conduction wet goods heats shaping mould.
Fluorescent lamp slice pipe second order buckling forming method of the present invention and device, because after straight tube bending becomes U-shaped like, shaping by U-shaped glass-tube both sides sectional die and/or bottom shaping mould, thereby having improved crooked U-shaped glass-tube greatly meets follow-up press-bending and goes into mould shape qualification rate, therefore improved the second order buckling yield rate greatly, according to the caliber difference, going into mould shape qualification rate can improve about 15-30%, especially big caliber is Ф 〉=12mm for example, going into the mold forming qualification rate can be improved by a relatively large margin, reaches with little caliber is basic identical to go into the mould qualification rate.Overcome prior art and bent to U-shaped like for the first time, the shape qualification rate is low, and to cause secondary to bend low into the mould qualification rate, finally causes the bend pipe yield rate low, and the deficiency that the glass-tube waste is big reaches the consumption pipe that reduces bend pipe by a relatively large margin, thereby reduced production cost.Apparatus of the present invention are simple in structure, and by changing involutory shaping and bending die, can be used for other needs for example bend pipe of plum blossom lamp sheet pipe of both direction bending.
Below in conjunction with three embodiments, the present invention is further understood in exemplary illustration and help, but the embodiment detail only is for the present invention is described, do not represent the present invention to conceive whole technical schemes down, therefore should not be construed as limited overall technical solution, some do not depart from the unsubstantiality of the present invention's design and change In the view of the technician, the simple change or the replacement that for example have same or similar technique effect technical characterictic all belong to the present invention and protect scope.
Description of drawings
Fig. 1 is the simple structural representation of a kind of shaped device of the inventive method.
Fig. 2 is an embodiment second order buckling matrix band pipe synoptic diagram.
Fig. 3 is fluorescent lamp slice pipe second order buckling moulding process step letter block diagram of the present invention.
Embodiment
Embodiment 1: referring to accompanying drawing, fluorescent lamp slice pipe second order buckling forming method of the present invention is followed successively by the straight glass tube baking and softens, and is bent into U-shaped like, and the involutory shaping of shaping mould is gone into mold pressing and curved (deciding) type.Its bending and molding device has, comprise that two supports needs the defeated pipe unit 1 of rolling of bending machining glass-tube 3, the some wide flame of Pai Lieing fuses softening installation 2 in turn, the crooked U-shaped device that fuses after softening (omits among the figure, can be referring to Chinese patent CN1528690), involutory arc arch shape bending die 5.1 and 5.2 and close up/separate actuating mechanism (omitting among the figure), involutory surface has forming cavity 7 respectively.Perpendicular to arc arch shape bending die (bending die both sides), the shaping mould 4.1 that can separate, close up and 4.2 and close up/separate actuating mechanism (omitting among the figure) are arranged, shaping mould vertically is provided with, and involutory surface has and bends glass-tube side isomorphous indent die cavity 6.Nichrome wire (omitting among the figure) is respectively arranged in bending die and the involutory shaping mould.
Glass-tube 3 is at first carried by propping up by an e Foerderanlage 9 by glass-tube, and fuse and make it softening by fusing 2 pairs of curved parts of flame, flip-arm (not shown) by both sides bends to U-shaped like 8 with it then, involutory shaping mould 4 by both sides closes up shaping again, close up by arc arch shape bending die 5 at last, will bend and bend into band arc arch shape sheet pipe 10 through the U-shaped like glass-tube of shaping.
Embodiment 2: as embodiment 1, increase by a shaping mould moving up and down in crooked glass-tube bottom, by lifting shaping on the shaping mould of bottom.
Embodiment 3: as embodiment 1, change shaping mould vertically is set, be tilting setting.
To those skilled in the art; under the present invention conceives enlightenment; some distortion that can directly derive or associate from this patent disclosure; or use substituting of known technology in the prior art always, and for example glass-tube adopts other heating softening devices, and shaping and bending and forming mould change according to the matrix band tube shape; rotate the bending U-shaped and adopt other devices or the like; all have constructed effect, all should belong to this patent protection domain, no longer describe in detail for example one by one.
Claims (10)
1. fluorescent lamp slice pipe second order buckling forming method comprises straight shape glass-tube central section being fused softening, bends to U-shaped like, the involutory bent into shape of mould, after it is characterized in that bending to U-shaped like, close up shaping, then by the involutory bent into shape of mould by the both sides shaping mould.
2. according to the described fluorescent lamp slice pipe second order buckling of claim 1 forming method, it is characterized in that closing up and be shaped as tilting shaping mould and close up shaping.
3. fluorescent lamp slice pipe second order buckling shaped device, comprise glass straight tube heating softening device, bend to U-shaped like device and involutory bending and forming mould, it is characterized in that involutory bending and forming mould both sides have can separate, close up, to crooked U-shaped like glass-tube shaping mould.
4. according to the described fluorescent lamp slice pipe second order buckling of claim 3 shaped device, it is characterized in that separately, close up shaping mould and be tilting.
5. according to claim 3 or 4 described fluorescent lamp slice pipe second order buckling shaped devices, it is characterized in that separately, close up shaping mould and close up face, have and inner cavity that crooked glass-tube sidepiece coincide.
6. according to claim 3 or 4 described fluorescent lamp slice pipe second order buckling shaped devices, it is characterized in that separately, close up heating unit is arranged in the shaping mould.
7. according to the described fluorescent lamp slice pipe second order buckling of claim 6 shaped device, it is characterized in that heating unit is an electric heater.
8. according to the described fluorescent lamp slice pipe second order buckling of claim 3 shaped device, but it is characterized in that the shaping mould of oscilaltion is arranged at crooked glass-tube bottom.
9. described according to Claim 8 fluorescent lamp slice pipe second order buckling shaped device, but it is characterized in that in the shaping mould of oscilaltion heating unit being arranged.
10. according to the described fluorescent lamp slice pipe second order buckling of claim 9 shaped device, it is characterized in that heating unit is an electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101233732A CN101367603B (en) | 2008-05-26 | 2008-05-26 | Secondary bending and molding method and device for fluorescent lamp slice pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101233732A CN101367603B (en) | 2008-05-26 | 2008-05-26 | Secondary bending and molding method and device for fluorescent lamp slice pipe |
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| Publication Number | Publication Date |
|---|---|
| CN101367603A CN101367603A (en) | 2009-02-18 |
| CN101367603B true CN101367603B (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101233732A Expired - Fee Related CN101367603B (en) | 2008-05-26 | 2008-05-26 | Secondary bending and molding method and device for fluorescent lamp slice pipe |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506494A (en) * | 2013-10-12 | 2014-01-15 | 芜湖开瑞金属科技有限公司 | Bending forming die for solid lifting hook of automobile |
| CN103506495A (en) * | 2013-10-12 | 2014-01-15 | 芜湖开瑞金属科技有限公司 | Bending and forming die for automobile hollow lifting hook |
| CN104876428A (en) * | 2015-05-10 | 2015-09-02 | 宁波大榭开发区佑威光电有限公司 | Novel pipe bending device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4869698A (en) * | 1987-01-29 | 1989-09-26 | Kabushiki Kaisha Toshiba | Method of manufacturing a bulb |
| CN2281350Y (en) * | 1996-11-30 | 1998-05-13 | 魏明海 | Bending apparatus for lamp tube |
| CN101114558A (en) * | 2006-07-26 | 2008-01-30 | 叶财生 | U-shaped lighting tube production technology and angle pipe equipment |
| CN101168470A (en) * | 2006-10-27 | 2008-04-30 | 厦门市东林电子有限公司 | Automatic forming method for parallel U-shape lamp tube unit in energy-saving fluorescent lamp tube |
-
2008
- 2008-05-26 CN CN2008101233732A patent/CN101367603B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4869698A (en) * | 1987-01-29 | 1989-09-26 | Kabushiki Kaisha Toshiba | Method of manufacturing a bulb |
| CN2281350Y (en) * | 1996-11-30 | 1998-05-13 | 魏明海 | Bending apparatus for lamp tube |
| CN101114558A (en) * | 2006-07-26 | 2008-01-30 | 叶财生 | U-shaped lighting tube production technology and angle pipe equipment |
| CN101168470A (en) * | 2006-10-27 | 2008-04-30 | 厦门市东林电子有限公司 | Automatic forming method for parallel U-shape lamp tube unit in energy-saving fluorescent lamp tube |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-276561A 2005.10.06 |
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Granted publication date: 20110608 Termination date: 20170526 |
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