CN202648348U - Water-propelling-through-ostiole drying device of printer circuit board (PCB) - Google Patents
Water-propelling-through-ostiole drying device of printer circuit board (PCB) Download PDFInfo
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- CN202648348U CN202648348U CN2012202591892U CN201220259189U CN202648348U CN 202648348 U CN202648348 U CN 202648348U CN 2012202591892 U CN2012202591892 U CN 2012202591892U CN 201220259189 U CN201220259189 U CN 201220259189U CN 202648348 U CN202648348 U CN 202648348U
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- air outlets
- air outlet
- leeward
- water
- windward
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Abstract
The utility model relates to a water-propelling-through-ostiole drying device of a printer circuit board (PCB). The water-propelling-through-ostiole drying device of the PCB comprises a windward knife and a leeward knife, wherein the windward knife and the leeward knife are respectively arranged on a PCB conveying mechanism. The windward knife is provided with at least two windward air outlets, while the leeward knife is provided with at least two leeward air outlets. And the windward air outlets correspond to the leeward air outlets one by one. The water-propelling-through-ostiole drying device of the PCB is characterized in that the windward air outlets and the corresponding leeward air inlets are arranged in stagger mode. All the leeward air outlets extend vertically, and all the windward air outlets extend clockwise and form included angles ranging from 10 degrees to 30 degrees with a vertical direction. Each of the windward air outlets and the leeward air outlets has only one angle and thereby no interference occurs between the windward air outlets and the leeward air outlets at work. The leeward air outlets can easily blow water out of the ostioles of the PCB thoroughly so as to dry thoroughly until no water traces exist and improve the quality of a product. And the production efficiency is improved because the drying time does not need prolonging.
Description
Technical field
The utility model relates to a kind of drying unit, relates in particular to a kind of aperture for pcb board and catches up with the water drying unit.
Background technology
In the technological process of production of PCB, the water in the hole of PCB need to be discharged, and oven dry, in next operation, produce avoiding
Various defectives.Draining furnace drying method to pcb board generally is to adopt two-stage cold wind the water in the aperture to be blown out the method that then adopts the one-level hot blast to dry at horizontal production line.
As shown in Figure 1, above-mentioned upper air knife 02 and the lower air knife 03 of catching up with the drying plant that adopts in water, the furnace drying method to generally comprise to be installed in respectively pcb board conveying mechanism 01 upper and lower sides, be provided with at least two upper air outlets 04 on the upper air knife 02, be provided with at least two lower air outlets 05 on the lower air knife 03, upper air outlet 04 is corresponding one by one with lower air outlet 05, and goes up air outlet 04 accordingly and point to identical with the position of lower air outlet 05.Above-mentioned drying plant generally can only satisfy the AR value less than the production of 6 pcb board, and for the AR value greater than 6 pcb board, then the water in pcb board 06 aperture 07 can't be blown out fully, dries, cause pcb board 06 oxidation after, will cause the defective of having no copper in the holes in heavy copper process.Its reason is because corresponding upper air outlet 04 and the position of lower air outlet 05 are pointed to identically, causes occurring the stream pressure that air outlet 04 and lower air outlet 05 blow out and cancels each other, and be difficult to aperture 07 interior water is blown out fully.Even the blast of lower air knife 02 can blow out the water in the aperture 07, water still can remain in the plate face of pcb board 06, therefore needs to prolong drying time, and efficient is lower.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of aperture of pcb board and catches up with the water blow-dry device, and the aperture of this pcb board catches up with the water blow-dry device to enhance productivity, and oven dry thoroughly improves the quality of product.The technical scheme that adopts is as follows:
A kind of aperture of pcb board is caught up with the water drying unit, comprise the upper air knife and the lower air knife that are installed in respectively pcb board conveying mechanism upper and lower sides, be provided with at least two upper air outlets on the upper air knife, be provided with at least two lower air outlets on the lower air knife, upper air outlet is corresponding one by one with lower air outlet, it is characterized in that: along the throughput direction of pcb board, go up the setting of staggering of air outlet and lower air outlet accordingly; The bearing of trend of lower air outlet all vertically; The bearing of trend of upper air outlet is all clockwise in vertical direction with 10 °～30 ° angles.
The lower air outlet of lower air knife all adopts vertical pass, install that air outlet is vertical with pcb board at present, pcb board is as far as possible near lower air knife, the air-flow of lower air knife is produced by boasting water from the aperture the inside, the airflow direction of the upper air outlet of upper air knife is opposite with the throughput direction of pcb board, the water of producing by boasting is caught up with backward, and adopted hot blast to dry.Because the bearing of trend of lower air outlet all vertically, the bearing of trend of upper air outlet is all clockwise in vertical direction with 10 °～30 ° angles, upper air outlet, lower air outlet only have a kind of angle separately, can not cause mutual interference during work, lower air outlet can blow out the water in the pcb board aperture easily fully, thereby oven dry thoroughly, substantially the water mark can not appear, improve product quality, need not in addition to prolong drying time, improved production efficiency.
As preferred version of the present utility model, it is characterized in that: along the throughput direction of pcb board, upper air outlet is in the place ahead of corresponding lower air outlet.Upper air outlet is located at the place ahead of corresponding lower air outlet, guarantee that air outlet blows out under the water tumbler in the aperture after, the air-flow of being gone up immediately air outlet accordingly blows backward.
As the further preferred version of the utility model, it is characterized in that: described angle is 15 °.The bearing of trend of upper air outlet and the angle between the vertical direction are set to 15 °, and the air-flow of upper air outlet can prevent that sealing is splashed to other place of pcb board, so that drying effect is better when catching up with water backward.
Description of drawings
Fig. 1 is the schematic diagram that prior art is caught up with the water drying unit;
Fig. 2 is the structural representation of the utility model preferred embodiment.
The specific embodiment
Be described further below in conjunction with accompanying drawing and preferred embodiment of the present utility model.
As shown in Figure 2, the aperture of this pcb board is caught up with the water drying unit, comprises the upper air knife 2 and the lower air knife 3 that are installed in respectively pcb board conveying mechanism 1 upper and lower sides; Be provided with two upper air outlets 4 on the upper air knife 2, be provided with two lower air outlets 5 on the lower air knife 3, upper air outlet 4 is corresponding one by one with lower air outlet 5; Along the throughput direction of pcb board 6, go up settings of staggering of air outlet 4 and lower air outlet 5 accordingly, upper air outlet 4 is in the place ahead of corresponding time air outlet 5; The bearing of trend of lower air outlet 5 all vertically; The bearing of trend of upper air outlet 4 is all clockwise in vertical direction with 15 ° of angles.
The air-flow of the lower air outlet 5 of lower air knife 3 is produced by boasting water from aperture 7 the insides, the airflow direction of the upper air outlet 4 of upper air knife 2 is opposite with the throughput direction of pcb board 6, the water of producing by boasting is caught up with backward, and adopted hot blast to dry.Because the bearing of trend of lower air outlet 5 all vertically, the bearing of trend of upper air outlet 4 is all clockwise in vertical direction with 15 ° of angles, upper air outlet 4, lower air outlet 5 only have a kind of angle separately, can not cause mutual interference during work, lower air outlet 5 can blow out the water in pcb board 6 apertures 7 easily fully, thereby oven dry thoroughly, substantially the water mark can not appear, improve product quality, need not in addition to prolong drying time, improved production efficiency.
In other embodiments, the quantity of upper air outlet and lower air outlet is 3,4 or 5.
In other embodiments, the bearing of trend of upper air outlet is all clockwise in vertical direction with 10 ° of angles.
In other embodiments, the bearing of trend of upper air outlet is all clockwise in vertical direction with 30 ° of angles.
Claims (3)
1. the aperture of a pcb board is caught up with the water drying unit, comprise the upper air knife and the lower air knife that are installed in respectively pcb board conveying mechanism upper and lower sides, be provided with at least two upper air outlets on the upper air knife, be provided with at least two lower air outlets on the lower air knife, upper air outlet is corresponding one by one with lower air outlet, it is characterized in that: along the throughput direction of pcb board, go up the setting of staggering of air outlet and lower air outlet accordingly; The bearing of trend of lower air outlet all vertically; The bearing of trend of upper air outlet is all clockwise in vertical direction with 10 °～30 ° angles.
2. the water drying unit of catching up with as claimed in claim 1 is characterized in that: along the throughput direction of pcb board, upper air outlet is in the place ahead of corresponding lower air outlet.
3. the water drying unit of catching up with as claimed in claim 1 or 2, it is characterized in that: described angle is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202591892U CN202648348U (en) | 2012-06-04 | 2012-06-04 | Water-propelling-through-ostiole drying device of printer circuit board (PCB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202591892U CN202648348U (en) | 2012-06-04 | 2012-06-04 | Water-propelling-through-ostiole drying device of printer circuit board (PCB) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648348U true CN202648348U (en) | 2013-01-02 |
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ID=47417445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202591892U Expired - Fee Related CN202648348U (en) | 2012-06-04 | 2012-06-04 | Water-propelling-through-ostiole drying device of printer circuit board (PCB) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990383A (en) * | 2015-07-31 | 2015-10-21 | 北京七星华创电子股份有限公司 | On-line air knife drying device |
| CN106369985A (en) * | 2016-10-18 | 2017-02-01 | 东莞宇宙电路板设备有限公司 | Air knife assembly and drying device |
| CN108534539A (en) * | 2018-05-14 | 2018-09-14 | 安徽宏实自动化装备有限公司 | A kind of porous type air blade device |
| CN109373743A (en) * | 2018-10-31 | 2019-02-22 | 武汉华星光电技术有限公司 | Air knife and the drying device for using the air knife |
-
2012
- 2012-06-04 CN CN2012202591892U patent/CN202648348U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990383A (en) * | 2015-07-31 | 2015-10-21 | 北京七星华创电子股份有限公司 | On-line air knife drying device |
| CN106369985A (en) * | 2016-10-18 | 2017-02-01 | 东莞宇宙电路板设备有限公司 | Air knife assembly and drying device |
| CN108534539A (en) * | 2018-05-14 | 2018-09-14 | 安徽宏实自动化装备有限公司 | A kind of porous type air blade device |
| CN109373743A (en) * | 2018-10-31 | 2019-02-22 | 武汉华星光电技术有限公司 | Air knife and the drying device for using the air knife |
| CN109373743B (en) * | 2018-10-31 | 2020-08-11 | 武汉华星光电技术有限公司 | Air knife and drying device adopting same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |