CN107459252A - A kind of stress annealing method of vial and the stress annealing system of vial - Google Patents
A kind of stress annealing method of vial and the stress annealing system of vial Download PDFInfo
- Publication number
- CN107459252A CN107459252A CN201710563709.6A CN201710563709A CN107459252A CN 107459252 A CN107459252 A CN 107459252A CN 201710563709 A CN201710563709 A CN 201710563709A CN 107459252 A CN107459252 A CN 107459252A
- Authority
- CN
- China
- Prior art keywords
- vial
- annealing
- conveyer belt
- warmer
- stress
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
-
- 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
Abstract
The invention discloses a kind of stress annealing method of vial, bottle device processed completes the shaping of vial, and vial is conveyed to conveyer belt, vial is sent at warmer by conveyer belt, body even heat treatment of the warmer to vial, vial is sent to annealing furnace by conveyer belt, heated successively by heating chamber, moist closet is annealed and cooling chamber carry out stove it is cold, complete whole annealing operation；A kind of stress annealing system of vial, including bottle device processed, annealing furnace, the conveyer belt for sequentially passing through bottle device and annealing furnace processed and the motor located at transmission end of tape, stress annealing system also includes warmer, on conveyer belt and between bottle device processed and annealing furnace, annealing furnace is provided with the heating chamber for heating vial, the moist closet made annealing treatment and carries out stove cold cooling chamber warmer.The stress annealing method and system of vial provided by the invention, there is the advantages of yields is high, power consumption is low.
Description
Technical field
The present invention relates to glass manufacturing area, more particularly to a kind of stress annealing method of vial and the stress of vial
Annealing system.
Background technology
It is weight from the bottle producing process of bottle-making machine to the annealing process procedure of annealing furnace in the manufacture production of traditional glass bottle
The production link wanted, have a great impact especially with the annealing process of annealing furnace to the yields of product；Notification number is CN
205528423 U Chinese utility model patent discloses a kind of automation vial and send bottle and annealing furnace, the annealing furnace
Using six segmentation annealing process, first three section is heated up heating step by step, and latter two sections are cooled by air blower cold wind formula, and its heating that heats up disappears
It is big to consume amount of natural gas, air blower consumption electric energy is high, causes production cost height.
The content of the invention
To solve shortcoming and defect present in above-mentioned prior art, a kind of yields of present invention offer is high, power consumption is low
The stress annealing system of vial stress annealing method and vial.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of stress annealing method of vial, wherein, the stress annealing method comprises the following steps：
(1) shaping and conveying：Bottle device processed completes the shaping of vial, and conveys vial to conveyer belt；
(2) even heat：Vial is sent at warmer by conveyer belt, body even heat treatment of the warmer to vial；
(3) anneal：Vial is sent to annealing furnace by conveyer belt, is heated successively by heating chamber, moist closet is carried out
Annealing and cooling chamber's progress stove are cold, complete whole annealing operation.
Preferably, the heating-up temperature of warmer is T1 in the step (2), T1≤500 DEG C.
Preferably, the transfer rate of conveyer belt is V, 0.38m/min≤V≤0.56m/min in the step (1).
Preferably, the temperature of heating chamber is T2,550 DEG C of 600 DEG C of ＜ T2 ＜ in the step (3).
Certainly, the present invention also provides a kind of vial for the stress annealing method for realizing vial in any of the above-described scheme
Stress annealing system, including bottle device processed, annealing furnace, the conveyer belt for sequentially passing through bottle device and annealing furnace processed and located at conveyer belt end
The motor at end, wherein, the stress annealing system also includes warmer, and the warmer is located on conveyer belt and is located at bottle device processed
Between annealing furnace, the annealing furnace is provided with the heating chamber for heating vial, the moist closet made annealing treatment and carries out the cold drop of stove
Greenhouse.
Preferably, the warmer is provided with flame jet, and the flame jet is set towards conveyer belt.
Preferably, the warmer is provided with two and is symmetricly set in the both sides of conveyer belt；Or the warmer is provided with
Four.
Preferably, the length of the annealing furnace is 23m, and the heating chamber length is 2m, and the moist closet length is 2m, institute
It is 19m to state cooling chamber's length.
Preferably, the heating chamber is provided with the first switch board of regulation room temperature, and the moist closet is provided with regulation room temperature
The second switch board.
Preferably, the conveyer belt includes driving wheel and driven pulley, and the conveyer belt at driven pulley is provided with cleaner,
The cleaner is connected with driven pulley.
After adopting the above technical scheme, the invention has the advantages that：
1st, the stress annealing method of vial provided by the invention, after the vial shaping in bottle-making machine, band residual temperature enters
Annealing process, reduces the heating energy consumption of annealing furnace, and energy-saving effect is obvious；Increase even heat treatment step, by warmer to glass
The even heat treatment of bottle, prevents that the vial of the output from bottle-making machine is frangible because of the cold and hot temperature difference, meanwhile, make the body of vial by
It is hot uniform, and then improve yields；By the way that annealing furnace is arranged into three-stage annealing furnace, energy consumption is reduced, and then reduce and be produced into
This.
2nd, by the way that the temperature of warmer is set into T1, and T1≤500 DEG C, before so keeping vial to enter annealing furnace
The condition of high temperature, it is easy to annealing furnace to carry out annealing process, and then improves yields；As 500 DEG C of T1 ＞, cause body ruckbildung,
Cause the deformation of vial.
3rd, by the way that the speed of conveyer belt is arranged into V, and 0.38m/min≤V≤0.56m/min, it so can guarantee that glass
Annealing time is sufficient in the lehr for bottle, ensures yields, meanwhile, improve annealing efficiency；As V ＜ 0.38m/min, not only give birth to
Producing efficiency reduces, meanwhile, the lengthening of annealing time causes the rise of defect rate；As V ＞ 0.56m/min, shorten annealing process
Time, the stress of vial fails to eliminate, and then raises defect rate.
4th, by the way that the temperature of heating chamber in annealing furnace is set into T2, and 550 DEG C of 600 DEG C of ＜ T2 ＜, it so can guarantee that glass
The temperature of bottle annealing point, and then annealing process is smoothly completed, reach the purpose for eliminating stress；As 550 DEG C of T2 ＜, it is impossible to reach and move back
The temperature of fire point, causes the rise of defect rate；As 600 DEG C of T2 ＞, temperature exceedes annealing point temperature, vial softening transform, led
Cause the rise of defect rate.
5th, the stress annealing system of vial provided by the invention, by being set on the conveyer belt between bottle-making machine and annealing furnace
Warmer is put, even heat treatment is carried out to vial, prevents the vial of output contacts with the external world from bottle-making machine from producing the temperature difference, just
In the annealing of annealing furnace, and then improve yields；By the way that annealing furnace is arranged into heating chamber, moist closet and cooling chamber, change
The technique for entering annealing, and then energy consumption is reduced, reduce production cost.
6th, by being provided with flame jet on warmer, and flame jet is set towards conveyer belt, can collect Flame heating
Region, make vial fully heated, ensure the yields of vial after annealing.
7th, by the way that warmer is provided with into two and is symmetrically set in the both sides of conveyer belt, warmer is carried out from both sides to vial
Heating, ensures that the whole body of vial is heated evenly；Or provided with four and it is symmetrically set in the both sides of conveyer belt, warmer work simultaneously
Make, avoid the regional area uneven heating of vial, ensure that the whole body of vial is heated.
8th, by the way that the length of annealing furnace is set into 23m, the length of heating chamber is set to 2m, and the length of moist closet is set to 2m, drop
The length in greenhouse is set to 19m, so that annealing furnace temperature control is accurate, coordinates the transmission of conveyer belt rationally to control annealing process.
9th, by the way that heating chamber to be provided with to the first switch board of regulation room temperature, moist closet is provided with the second control of regulation room temperature
Cabinet processed, required according to the annealing process of different glass bottle, heating chamber is adjusted by the first switch board respectively and the second switch board is adjusted
Temperature corresponding to saving moist closet, realize the annealing purpose of variety classes vial.
10th, by being provided with cleaner on the conveyer belt at driven pulley, cleaner cleans to transmission belt surface
Processing, reduces extraneous spot and is trapped in transmission belt surface, causes vial to be infected with spot, and then reduces the yields of vial,
Cleaner is connected with driven pulley so that cleaner is run simultaneously with conveyer belt, improves the cleaning capacity of cleaner.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the top view of the stress annealing system embodiment one of vial of the present invention.
Fig. 2 is the front view of the stress annealing system embodiment one of vial of the present invention.
Fig. 3 be vial of the present invention stress annealing system embodiment two in warmer distribution schematic diagram.
It is as follows that each structure title is marked in figure：
1st, bottle device processed；2nd, annealing furnace；21st, heating chamber；211st, the first switch board；22nd, moist closet；221st, the second switch board；
23rd, cooling chamber；3rd, conveyer belt；31st, motor；32nd, driving wheel；33rd, driven pulley；4th, warmer；5th, cleaner.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.In the description of the invention, it is to be understood that
The orientation or position relationship of the instruction such as " on ", " under ", "left", "right", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning
Put or original paper there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
Embodiment one：
The present invention discloses a kind of stress annealing method of vial, specifically comprises the following steps：
(1) it is molded and conveys：Bottle-making machine 1 is made vial be in the condition of high temperature, made by thermoforming process output vial
Vial is placed on conveyer belt 3 by bottle machine；
(2) even heat：Transmitted by conveyer belt 3 to warmer 4, warmer 4 is carried out even by thermal-flame to vial
Heat treatment；
(3) anneal：Vial is transmitted to annealing furnace 2 by conveyer belt 3, carrying out furnace high-temperature by heating chamber 21 adds
Heat, furnace annealing processing is carried out by moist closet 22, finally carries out cooling processing by cooling chamber 23.
Specifically, in above-mentioned steps (2), the heating-up temperature of warmer 4 is T1, and preferable T1 is 450 DEG C, so by adding
The heating of warm device 4, vial is in the condition of high temperature, be easy to the processing of subsequent annealing process.Certainly, optional T1 be 500 DEG C,
400 DEG C, 300 DEG C etc..
Specifically, in above-mentioned steps (1), the speed of conveyer belt is V, and preferable V is 0.45m/min, so passes through control
The speed of conveyer belt 3, ensure the stationarity of vial transport, meanwhile, ensure the order of production technology.Certainly, optional V is
0.38m/min, 0.44m/min, 0.50m/min, 0.56m/min etc..
Specifically, in above-mentioned steps (3), the temperature of heating chamber 21 is set to T2 in annealing furnace, and preferable T2 is 565 DEG C, this
Sample ensures that vial reaches annealing point, and then complete whole annealing process by controlling the temperature in heating chamber 21.Certainly, may be used
The T2 of choosing is 560 DEG C, 570 DEG C, 580 DEG C, 590 DEG C etc..
Certainly, as shown in Figure 1 and Figure 2, invention additionally discloses a kind of stress annealing for realizing vial in any of the above-described scheme
The stress annealing system of the vial of method, the stress annealing system include bottle device 1 processed, annealing furnace 2, sequentially pass through bottle device 1 processed
Conveyer belt 3 with annealing furnace 2 and the motor 31 located at the end of conveyer belt 3, motor 31 provide power for the operating of conveyer belt 3.
Stress annealing system also includes warmer 4, and warmer 4 is located on conveyer belt 3 and is located at bottle device 1 processed and annealing furnace 2
Between, warmer 4 is provided with two and is symmetricly set in the both sides of conveyer belt 3；Height is in from the vial itself of the output of bottle device 1 processed
Temperature state, when being introduced into annealing furnace 2, contacted with the external world and produce the temperature difference and frangible, by setting warmer 4, make vial
Still in high Warm status, it is easy to the processing of postorder annealing process, and then improves the yields of vial, meanwhile, warmer 4 is to passing
Send the outer surface of band 3 to carry out high-temperature process, the spot for being trapped in the outer surface of conveyer belt 3 is removed, this ensure that product line is clean and tidy
Degree；Warmer 4 is provided with flame jet, and flame jet can concentrate on flame a certain region heating, and warmer 4 is sprayed by flame
Mouth injection thermal-flame heating vial.
Annealing furnace 2 is provided with the heating chamber 21 for heating vial, the moist closet 22 made annealing treatment and carries out the cold cooling chamber of stove
23, Three-section type heating traditionally is modified to one-part form heating, reduces energy consumption, while also reduce production cost；Annealing
The length of stove 2 is 23m, wherein, the length of heating chamber 21 is 2m, and the temperature of moist closet 22 is 2m, and production Du of cooling chamber 23 is
19m, by setting the length determined so that annealing furnace temperature control is accurate, meanwhile, coordinate the transmission of conveyer belt rationally to control lehr attendant
Skill；Heating chamber 21 is provided with the first switch board 211 of regulation indoor temperature, and heating chamber 22 is provided with the second of regulation indoor temperature
Switch board 221, the temperature in heating chamber 21 and moist closet 22 can be adjusted respectively according to different types of vial, completed at annealing
Reason.
Conveyer belt 3 includes driving wheel 32 and driven pulley 33, and the conveyer belt 3 at driven pulley 33 is provided with cleaner 5, clearly
Clean device 5 includes roller and the clean layer located at outer surface of cylinder, while the outer surface joint of clean layer and conveyer belt 3, cleaning
Device 5 is connected with driven pulley 33, and the drive connection is synchronous band connection, and by the power output of motor 31, conveyer belt 3 drives
The run-in synchronism of cleaner 5, cleaner 5 wipe the outer surface of conveyer belt by clean layer, the outer surface of conveyer belt is kept clean and tidy
Totally.
It should be understood that it can be connected between cleaner and driven pulley by Chain conveyer.
Embodiment two：
The present embodiment is that the quantity of the warmer is different with distribution mode with the difference of embodiment one.
As shown in figure 3, in the present embodiment, warmer 4 is provided with four, and warmer 4 be respectively arranged on conveyer belt 3 both sides and
It is symmetrical arranged, meanwhile, the direction of flame jet is intersected at one on warmer 4, so that the thermal-flame of flame jet injection converges
Gather at one.Other not described part-structures and beneficial effect are identical with embodiment one.
So setting is advantageous in that, warmer carries out even heat treatment from four angles to vial, can keep from heat not
Equal situation, and then improve yields.
In addition to above preferred embodiment, the present invention also has other embodiments, and those skilled in the art can be according to this
Invention is variously modified and deformed, and without departing from the spirit of the present invention, all should belong to appended claims of the present invention and determine
The scope of justice.
Claims (10)
1. a kind of stress annealing method of vial, it is characterised in that the stress annealing method comprises the following steps：
(1) shaping and conveying：Bottle device processed completes the shaping of vial, and conveys vial to conveyer belt；
(2) even heat：Vial is sent at warmer by conveyer belt, body even heat treatment of the warmer to vial；
(3) anneal：Vial is sent to annealing furnace by conveyer belt, is heated successively by heating chamber, moist closet is annealed
And cooling chamber's progress stove is cold, completes whole annealing operation.
2. the stress annealing method of vial according to claim 1, it is characterised in that warmer in the step (2)
Heating-up temperature be T1, T1≤500 DEG C.
3. the stress annealing method of vial according to claim 1, it is characterised in that conveyer belt in the step (1)
Transfer rate be V, 0.38m/min≤V≤0.56m/min.
4. the stress annealing method of vial according to claim 1, it is characterised in that heating chamber in the step (3)
Temperature be T2,550 DEG C of 600 DEG C of ＜ T2 ＜.
5. a kind of stress annealing system of vial, including bottle device processed, annealing furnace, the transmission for sequentially passing through bottle device and annealing furnace processed
Band and the motor located at transmission end of tape, it is characterised in that the stress annealing system also includes warmer, the warmer
On conveyer belt and between bottle device processed and annealing furnace, the annealing furnace is provided with the heating heating chamber of vial, at annealing
The moist closet of the reason cooling chamber cold with stove is carried out.
6. the stress annealing system of vial according to claim 5, it is characterised in that the warmer is provided with flame
Spout, the flame jet are set towards conveyer belt.
7. the stress annealing system of vial according to claim 5, it is characterised in that the warmer be provided with two and
It is symmetricly set in the both sides of conveyer belt；Or the warmer is provided with four.
8. the stress annealing system of vial according to claim 5, it is characterised in that the length of the annealing furnace is
23m, the heating chamber length are 2m, and the moist closet length is 2m, and cooling chamber's length is 19m.
9. the stress annealing system of vial according to claim 8, it is characterised in that the heating chamber is provided with regulation
First switch board of room temperature, the moist closet are provided with the second switch board of regulation room temperature.
10. the stress annealing system of vial according to claim 5, it is characterised in that the conveyer belt is included actively
Wheel and driven pulley, the conveyer belt at driven pulley are provided with cleaner, and the cleaner is connected with driven pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563709.6A CN107459252A (en) | 2017-07-12 | 2017-07-12 | A kind of stress annealing method of vial and the stress annealing system of vial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563709.6A CN107459252A (en) | 2017-07-12 | 2017-07-12 | A kind of stress annealing method of vial and the stress annealing system of vial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107459252A true CN107459252A (en) | 2017-12-12 |
Family
ID=60546209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710563709.6A Pending CN107459252A (en) | 2017-07-12 | 2017-07-12 | A kind of stress annealing method of vial and the stress annealing system of vial |
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| CN (1) | CN107459252A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441728A (en) * | 2019-09-05 | 2021-03-05 | 河源市源日通能源有限公司 | Tempering production line for high borosilicate glass inner container of electric cooker |
| CN112960897A (en) * | 2021-03-01 | 2021-06-15 | 金玛瑙香水（明光）有限公司 | Method for removing stress of thick-bottom glass bottle |
| CN114920446A (en) * | 2022-06-09 | 2022-08-19 | 浙江飞洋杯业有限公司 | Glass bottle forming equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1797659A (en) * | 1928-09-15 | 1931-03-24 | American Bicheroux Company | Apparatus comprising a heated chamber and transporting rollers, such as the annealing apparatus |
| US2669068A (en) * | 1948-08-13 | 1954-02-16 | Wambreuze Ovide | Furnace for annealing glass |
| CN203440232U (en) * | 2013-09-27 | 2014-02-19 | 杭州天山医药玻璃有限公司 | Automatic mesh belt annealing furnace for medicinal glass bottle |
| CN106830652A (en) * | 2017-03-20 | 2017-06-13 | 西南大学 | The pipe-produced glass bottle method for annealing that can save energy |
-
2017
- 2017-07-12 CN CN201710563709.6A patent/CN107459252A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1797659A (en) * | 1928-09-15 | 1931-03-24 | American Bicheroux Company | Apparatus comprising a heated chamber and transporting rollers, such as the annealing apparatus |
| US2669068A (en) * | 1948-08-13 | 1954-02-16 | Wambreuze Ovide | Furnace for annealing glass |
| CN203440232U (en) * | 2013-09-27 | 2014-02-19 | 杭州天山医药玻璃有限公司 | Automatic mesh belt annealing furnace for medicinal glass bottle |
| CN106830652A (en) * | 2017-03-20 | 2017-06-13 | 西南大学 | The pipe-produced glass bottle method for annealing that can save energy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441728A (en) * | 2019-09-05 | 2021-03-05 | 河源市源日通能源有限公司 | Tempering production line for high borosilicate glass inner container of electric cooker |
| CN112960897A (en) * | 2021-03-01 | 2021-06-15 | 金玛瑙香水（明光）有限公司 | Method for removing stress of thick-bottom glass bottle |
| CN114920446A (en) * | 2022-06-09 | 2022-08-19 | 浙江飞洋杯业有限公司 | Glass bottle forming equipment |
| CN114920446B (en) * | 2022-06-09 | 2024-02-20 | 浙江飞洋杯业有限公司 | Forming equipment for glass bottle |
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Application publication date: 20171212 |
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| RJ01 | Rejection of invention patent application after publication |