CN102679694B - Horizontal hot air circulating oven for flexible circuit board - Google Patents
Horizontal hot air circulating oven for flexible circuit board Download PDFInfo
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- CN102679694B CN102679694B CN201210175561.6A CN201210175561A CN102679694B CN 102679694 B CN102679694 B CN 102679694B CN 201210175561 A CN201210175561 A CN 201210175561A CN 102679694 B CN102679694 B CN 102679694B
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- 238000000034 method Methods 0.000 abstract description 9
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- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000004075 alteration Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a horizontal hot air circulating oven for a flexible circuit board. The horizontal hot air circulating oven comprises an oven body with flat plate type air guide plates arranged on two opposite sides, a heater and a hot air circulating system. The hot air circulating system comprises a circulating fan arranged on the upper portion of the oven body and a circulating air channel connected outside the oven body, wherein the heater is arranged in the circulating air channel, one of the flat plate type air guide plates arranged on the two opposite sides is used for hot air in the circulating air channel to enter the oven body horizontally, and the other flat plate type air guide plate is used for the hot air horizontally passing through the oven body to be exhausted and to re-enter the circulating air channel. The hot air circulating system further comprises a plurality of air guide nozzles which are respectively arranged on the flat plate type air guide plates arranged on the two opposite sides. The oven body is divided into a plurality of areas in the vertical direction, and diameters of the air guide nozzles in the plurality of areas are reduced gradually from top to bottom. The horizontal hot air circulating oven for the flexible circuit board thoroughly solves the problem of color difference scrapping caused by uneven heating of the flexible circuit board in the baking process, fundamentally eradicates hidden product quality danger, and is favorable for reducing cost and expanse, saving energy and reducing emission.
Description
Technical field
the present invention relates to a kind of flexible electric circuit board horizontal heated-air circulation roaster.
Background technology
current flexible circuit board industry, in the time that flexible circuit panel products is toasted, generally adopts the special heated-air circulation roaster of horizontal.The circulation of the type oven hot air is to force transverse convection to complete by high-temperature centrifugal fan to inner hot blast, its structure is compared with rectilinear heated-air circulation roaster in the past, substantially the phenomenon that there will be product seriously to be blown while having solved flexible electric circuit board baking, therefore horizontal heated-air circulation roaster at flexible circuit board industry by wide popularization and application.But horizontal heated-air circulation roaster is after the long-term use of flexible electric circuit board manufacturing enterprise, the flexible circuit panel products that discovery is baked, after always existing a big chunk product to toast, because having appearred in the surface color of product, scraps serious aberration, when particularly the higher baking time of baking temperature is longer, the product of scrapping is more, and this bad phenomenon has had a strong impact on the utilization rate of first-time qualification rate, timely delivery guaranteed rate and the raw and auxiliary material of flexible electric circuit board manufacturing enterprise product.
Summary of the invention
technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of improved flexible electric circuit board horizontal heated-air circulation roaster is provided.
for solving above technical problem, the present invention takes following technical scheme:
a kind of flexible electric circuit board horizontal heated-air circulation roaster, comprise the casing that relative two sides are flat wind deflector, heater and hot air circulating system, this hot air circulating system comprises the circulating fan that is arranged on casing top, be connected to the circulated air passage outside casing, heater is arranged in circulated air passage, one in the flat wind deflector of relative two sides enters casing for the hot blast level in circulated air passage, the hot blast that another water supply mean longitude is crossed casing is discharged and is reentered in circulated air passage, particularly, described wind circulating system also comprises the multiple wind-guiding nozzles on the flat wind deflector that is separately positioned on relative two sides, described casing is divided into multiple regions in vertical direction, the diameter of the wind-guiding nozzle in the plurality of region reduces from top to bottom successively.
according to the present invention, the number of the wind-guiding nozzle in described multiple regions and diameter are as the criterion can make the difference of temperature in described multiple region and design temperature be controlled within 5% simultaneously.
according to further embodiment of the present invention: described circulating fan comprises the motor of the top middle portion that is arranged on casing and driven run-in synchronism and be positioned at the multiple wing type centrifugal wind wheel of circulated air passage by motor.Further, heater is arranged on the position near multiple wing type centrifugal wind wheel in circulated air passage.
according to a preferred aspect of the present invention, described casing is divided into three regions of upper, middle and lower in vertical direction, be positioned at the diameter maximum of the wind-guiding nozzle of upper area, be positioned at the diameter minimum of the wind-guiding nozzle of lower zone, the temperature in three regions and the difference of design temperature are all controlled within 5%.
due to the enforcement of above technical scheme, the present invention compared with prior art tool has the following advantages:
applicant finds through long-term site observation research, cause and toasted that serious aberration appears in rear flexible electric circuit board surface color and the main cause of scrapping, because the type horizontal heated-air circulation roaster internal difference in temperature causes too greatly, make product inhomogeneously occur that aberration scraps because being heated in bake process, measure through the actual temperature in product bake process, three region desired temperatures on year-on-year basis of upper, middle and lower, upper area substantially control range 5% within, and central region temperature exceeds nearly 20% than setting value, lower area temperature exceeds nearly 31% than setting value, the so huge temperature difference will inevitably produce serious influence to the product quality of baking.The present invention improves the hot air circulation structure of original heated-air circulation roaster, on the basis of the flat wind deflector in original left and right, increase wind-guiding nozzle, and according to the actual conditions of the temperature difference in casing, casing is divided into multiple regions in vertical direction, the different size that the nozzle diameter in these multiple regions is designed to reduce successively, can effectively regulate the hot air flow in multiple regions substantially to reach balance with this, baking box internal heat wind levels circulating effect uniformity more.Through the actual use that puts into operation, flexible circuit panel products because bake process is heated the inhomogeneous aberration occurring scrap and stop completely, measure through the actual temperature in product bake process again, desired temperature on year-on-year basis, temperature gap basic controlling in Zone Full is within 5%, meet the requirement of flexible electric circuit board baking process completely, by improvement and the application of this hot air circulating system, the utilization rates of first-time qualification rate, timely delivery guaranteed rate and the raw and auxiliary material of enterprise product etc., have all obtained efficiently and effectively assurance.
Accompanying drawing explanation
below in conjunction with accompanying drawing and concrete embodiment, the present invention will be further described in detail.
fig. 1 is structural representation of the present invention;
wherein: 1, casing; 10, flat guide plate; 2, heater; 3, circulating fan; 30, motor; 31, multiple wing type centrifugal wind wheel; 4, circulated air passage; 5, wind-guiding nozzle.
The specific embodiment
as shown in Figure 1, mainly comprise casing 1, heater 2 and three parts of hot air circulating system according to the flexible electric circuit board of the present embodiment with horizontal heated-air circulation roaster.Wherein: left and right two sides of casing 1 are flat wind deflector 10.Casing 1 is divided into three regions of upper, middle and lower from top to bottom, and these three regions are used respectively A, B, C mark in the drawings.
hot air circulating system comprise circulating fan 3, circulated air passage 4 and be arranged on left and right two sides flat wind deflector 10 on multiple wind-guiding nozzles 5.In this example, according to the actual conditions of three space temperature variations of upper, middle and lower, trizonal upper, middle and lower nozzle diameter is designed to large, medium and small three kinds of different specifications, effectively regulates trizonal hot air flow substantially to reach balance.Circulating fan 3 comprises the motor 30 of the top middle portion that is arranged on casing 1 and is driven run-in synchronism and be positioned at the multiple wing type centrifugal wind wheel 31 of circulated air passage 4 by motor 30.Heater 2 is arranged on the interior position near multiple wing type centrifugal wind wheel 31 of circulated air passage 4.
after the flexible electric circuit board of the present embodiment starts with horizontal heated-air circulation roaster, motor 30 turns round, multiple wing type centrifugal wind wheel 31 run-in synchronisms simultaneously, centrifugal wind wheel 31 heat that produced circulated air produces heater 2 that turns round carries out heat conduction, the air that heater via 2 heats is heated to three regions of casing upper, middle and lower through multiple wind-guiding nozzles 5 in casing 1 left side simultaneously, the heat that wind-guiding nozzle 5 sprays is completing after heat exchange the product in three regions, turn back in circulated air passage 4 via the wind-guiding nozzle 5 on right side, finally turn back to multiple wing type centrifugal wind wheel 31, multiple wing type centrifugal wind wheel 31 circulated air producing that turns round again and again completes the whole cyclic process of air heat.
the flexible electric circuit board of the present embodiment horizontal heated-air circulation roaster, the trizonal temperature of upper, middle and lower substantially control range 5% within, meet the requirement of flexible electric circuit board baking process completely, by improvement and the application of this hot air circulating system, the utilization rates of first-time qualification rate, timely delivery guaranteed rate and the raw and auxiliary material of enterprise product etc., have all obtained efficiently and effectively assurance.
to sum up, flexible electric circuit board of the present invention is simple in structure with horizontal heated-air circulation roaster, failure rate is low, economical and practical, stable performance and reliable operation, crucial thoroughly solved product because bake process is heated the inhomogeneous aberration occurring scrap problem, fundamentally stop product quality hidden danger, fall this section and prop up with energy-saving and emission-reduction and created good condition for enterprise produces, and do not affect all functions of existing equipment completely, under equal service condition, do not increase any energy consumption, make equipment reach the operational effect of lasting highly effective and safe completely, and enterprise's production high precision product is established to solid foundation.
above the present invention is described in detail, but the invention is not restricted to the embodiments described.The equivalence that all Spirit Essences according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a flexible electric circuit board horizontal heated-air circulation roaster, comprise that relative two sides are the casing of flat wind deflector (10) (1), heater (2) and hot air circulating system, described hot air circulating system comprises the circulating fan (3) that is arranged on described casing (1) top, be connected to the outer circulated air passage (4) of described casing (1), described heater (2) is arranged in described circulated air passage (4), hot blast level in the described circulated air passage of a confession (4) in the flat wind deflector (10) of described relative two sides enters described casing (1), another water supply mean longitude is crossed the hot blast of described casing (1) and is discharged and reenter in described circulated air passage (4), it is characterized in that: described wind circulating system also comprises the multiple wind-guiding nozzles (5) on the flat wind deflector (10) that is separately positioned on described relative two sides, described casing (1) is divided into multiple regions in vertical direction, the diameter of the described wind-guiding nozzle (5) in described multiple region reduces from top to bottom successively, the number of the described wind-guiding nozzle (5) in described multiple region and diameter are as the criterion can make the difference of temperature in described multiple region and design temperature be controlled within 5% simultaneously,
Described circulating fan (3) comprises the motor (30) of the top middle portion that is arranged on described casing (1) and is driven run-in synchronism and be positioned at the multiple wing type centrifugal wind wheel (31) of described circulated air passage (4) by described motor (30).
2. flexible electric circuit board according to claim 1 horizontal heated-air circulation roaster, is characterized in that: described heater (2) is arranged on the position near described multiple wing type centrifugal wind wheel (31) in described circulated air passage (4).
3. flexible electric circuit board according to claim 1 and 2 horizontal heated-air circulation roaster, it is characterized in that: described casing (1) is divided into three regions of upper, middle and lower in vertical direction, be positioned at the diameter maximum of the wind-guiding nozzle (5) of upper area, be positioned at the diameter minimum of the wind-guiding nozzle (5) of lower zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175561.6A CN102679694B (en) | 2012-05-31 | 2012-05-31 | Horizontal hot air circulating oven for flexible circuit board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175561.6A CN102679694B (en) | 2012-05-31 | 2012-05-31 | Horizontal hot air circulating oven for flexible circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN102679694A CN102679694A (en) | 2012-09-19 |
| CN102679694B true CN102679694B (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210175561.6A Expired - Fee Related CN102679694B (en) | 2012-05-31 | 2012-05-31 | Horizontal hot air circulating oven for flexible circuit board |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371604A (en) * | 2015-11-18 | 2016-03-02 | 无锡科诺达电子有限公司 | Sapphire cyclic drying device |
| CN107560425A (en) * | 2017-09-30 | 2018-01-09 | 志圣科技（广州）有限公司 | Vacuum pressure baking box |
| CN113126722A (en) * | 2019-12-31 | 2021-07-16 | 北京灵汐科技有限公司 | Method for setting chip radiator of electronic board card and electronic board card |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2406719Y (en) * | 1999-12-10 | 2000-11-22 | 速八科技工业有限公司 | Workpiece machining and processing apparatus with oily dust remover |
| CN2839928Y (en) * | 2005-06-20 | 2006-11-22 | 陈良朝 | Air control structure for heating furnace body |
| JP4746997B2 (en) * | 2006-02-10 | 2011-08-10 | ホシザキ電機株式会社 | Drying equipment |
| CN202630597U (en) * | 2012-05-31 | 2012-12-26 | 昆山市线路板厂 | Horizontal heated air circulation oven for flexible circuit board |
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| CN102679694A (en) | 2012-09-19 |
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