CN203807543U - PCB (Printed Circuit Board) tin spraying machine - Google Patents
PCB (Printed Circuit Board) tin spraying machine Download PDFInfo
- Publication number
- CN203807543U CN203807543U CN201420065339.5U CN201420065339U CN203807543U CN 203807543 U CN203807543 U CN 203807543U CN 201420065339 U CN201420065339 U CN 201420065339U CN 203807543 U CN203807543 U CN 203807543U
- Authority
- CN
- China
- Prior art keywords
- air knife
- pcb
- pcb board
- tin
- spraying machine
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a PCB (Printed Circuit Board) tin spraying machine. The PCB (Printed Circuit Board) tin spraying machine comprises a rack, the rack is provided with a board feeding device, a tin spraying device and a hot air levelling device, the hot air levelling device comprises an upper air knife and a lower air knife, each of the upper air knife and the lower air knife comprises an air cavity with an air outlet and a heating component in the air cavity, the PCB tin spraying machine is characterized in that the upper air knife and the lower air knife are arranged on the rack in a way of lifting up and down, the lower air knife is arranged in the direction vertical to the conveying direction of a PCB, the upper air knife is arranged in the direction inclined to the conveying direction of the PCB, and a filter screen is detachably arranged on the air outlet. The PCB tin spraying machine can achieve a better hot air levelling effect, so that the quality of the PCB is improved.
Description
Technical field
The utility model relates to a kind of tin-spraying machine for pcb board processing.
Background technology
Tin-spraying machine is in pcb board complete processing, for be covered with one deck Sn-Al alloy layer on copper-clad laminate.Tin-spraying machine mainly comprises the plate feeding device that pcb board is carried, pcb board is sprayed to the tin jet device of tin and the hot air leveling device that the plate face of pcb board is flattened and unnecessary tin material is removed, wherein, hot air leveling device comprises perpendicular to the upper air knife of pcb board throughput direction and lower air knife, from wind, to the powerful hot blast blowing out, just the unnecessary tin material pcb board two sides is removed, but carry out hot blast and blow because upper air knife and lower air knife all face pcb board, unnecessary tin material on pcb board may flow in guide hole and at two strands and remain in guide hole as stopping up guide hole under wind effect, and in air, cooled tin material particle also may enter in the wind chamber of air knife, thereby make these tin material particles along with hot blast blows to together pcb board and is attached on tin layer, thereby make the tin layer surface after hot air leveling smooth not, affect the quality of pcb board.
Summary of the invention
For the deficiencies in the prior art, problem to be solved in the utility model is to provide a kind ofly can carry out the pcb board tin-spraying machine of hot air leveling better to pcb board.
For this reason, the utility model is realized in the following way: a kind of pcb board tin-spraying machine, comprise frame, described frame is provided with plate feeding device, tin jet device and hot air leveling device, described hot air leveling device comprises air knife and lower air knife, described upper air knife and lower air knife comprise having the wind chamber of air outlet and be located at the heat generating component in wind chamber, it is characterized in that: what described upper air knife and lower air knife can oscilaltions is arranged in frame, described lower air knife is perpendicular to the throughput direction setting of pcb board, described windward cutter favours the throughput direction setting of pcb board, on described air outlet, be removably provided with filtering net.
The sidewall in described wind chamber is provided with ventilating pit.
In the utility model, perpendicular to the throughput direction setting of pcb board, windward cutter favours the throughput direction setting of pcb board to lower air knife, therefore at air knife, carry out hot blast while blowing, the unnecessary tin material flowing in guide hole can be blown out guide hole by lower air knife, upper air knife blows away the tin material that is blown guide hole simultaneously, thereby guaranteed the unimpeded of guide hole, and by the can slide up and down position of upper air knife and lower air knife of adjusting, can make the pcb board of its reply different thickness can both reach optimum hot air leveling effect, and the filtering net at air outlet place has avoided airborne tin material particle to enter in wind chamber effectively, guaranteed the pure property of the hot blast that blows out from air knife, thereby guaranteed the bright and clean of the pcb board plate face after hot air leveling.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 goes up the structural representation of air knife and lower air knife in the utility model;
Fig. 3 is the enlarged diagram at M place in Fig. 2.
Embodiment
With reference to Fig. 1, Fig. 2, shown in Fig. 3, this pcb board tin-spraying machine, comprise frame 1, described frame 1 is provided with plate feeding device 3, tin jet device 2 and hot air leveling device, described hot air leveling device comprises air knife 5 and lower air knife 6, described upper air knife 5 and lower air knife 6 comprise having the wind chamber 7 of air outlet 11 and be located at the heat generating component in wind chamber 7, described heat generating component comprises heat-generating pipe 9 and retaining plate 8, described heat-generating pipe 9 plate 8 that is fixed is fixed in wind chamber 7, described upper air knife 5 and lower air knife 6 can oscilaltion be arranged in frame 1, specifically, described upper air knife 5 and lower air knife 6 are arranged in frame by slide block, described slide block is connected with driving mechanism and this driving mechanism is connected with the control center of tin-spraying machine, described lower air knife 6 is perpendicular to the throughput direction setting of pcb board, described upper air knife 5 favours the throughput direction setting of pcb board, on described air outlet 11, be removably provided with filtering net 10, specifically, on wind chamber 7 inwalls at described air outlet 11 places, there are clamping plate setting up and down 13, described filtering net 10 inserts between clamping plate 13, the sidewall in described wind chamber 7 is provided with ventilating pit 12.When pcb board being sprayed to tin operation, pcb board 4 is sent in tin jet device 2 and is sprayed tin by plate feeding device 3, after spray tin completes, just by plate feeding device 3, send tin jet device 2 and be sent to hot air leveling device again, be that pcb board 4 is passed between upper air knife 5 and lower air knife 6,6 two sides to pcb board of upper air knife 5 and lower air knife blow powerful hot blast, unnecessary tin material on pcb board 4 two sides is removed, and because upper air knife 5 is the throughput directions that favour pcb board 4, therefore lower air knife 6 can blow out guide hole by the unnecessary tin material in pcb board 4 guide holes and be blown away by upper air knife 5.By air knife in up-down adjustment 5 and lower air knife 6, can make them at the pcb board that acts on different thickness, can both in most suitable blowing spacing, reach best hot air leveling effect, and removable filter net 10 has prevented that airborne tin material particle from entering in wind chamber 7 and pollute the hot blast blowing out from air knife and the tin layer of pcb board is impacted on air knife air outlet 11, simultaneously the mounting means of draw and insert-type has also facilitated filtering net 10 has been cleaned, wind chamber 7 sidewall upper vent holes 12 can make gas in wind chamber 7 and extraneous air carry out alternately, and because the air pressure in wind chamber 7 is greater than outside air, therefore the gas that wind chamber 7 contains impurity can be discharged by ventilating pit, and airborne impurity can not enter in wind chamber 7, thereby guaranteed the pure property of the hot blast that blows out from wind chamber 7.
Claims (2)
1. a pcb board tin-spraying machine, comprise frame, described frame is provided with plate feeding device, tin jet device and hot air leveling device, described hot air leveling device comprises air knife and lower air knife, described upper air knife and lower air knife comprise having the wind chamber of air outlet and be located at the heat generating component in wind chamber, it is characterized in that: what described upper air knife and lower air knife can oscilaltions is arranged in frame, described lower air knife is perpendicular to the throughput direction setting of pcb board, described windward cutter favours the throughput direction setting of pcb board, is removably provided with filtering net on described air outlet.
2. pcb board tin-spraying machine according to claim 1, is characterized in that: the sidewall in described wind chamber is provided with ventilating pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065339.5U CN203807543U (en) | 2014-02-14 | 2014-02-14 | PCB (Printed Circuit Board) tin spraying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065339.5U CN203807543U (en) | 2014-02-14 | 2014-02-14 | PCB (Printed Circuit Board) tin spraying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807543U true CN203807543U (en) | 2014-09-03 |
Family
ID=51446326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065339.5U Expired - Fee Related CN203807543U (en) | 2014-02-14 | 2014-02-14 | PCB (Printed Circuit Board) tin spraying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835584A (en) * | 2017-10-27 | 2018-03-23 | 遂宁市力源印制电路板有限公司 | Quickly spray tin method in the surface of wiring board |
-
2014
- 2014-02-14 CN CN201420065339.5U patent/CN203807543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835584A (en) * | 2017-10-27 | 2018-03-23 | 遂宁市力源印制电路板有限公司 | Quickly spray tin method in the surface of wiring board |
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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: 20140903 Termination date: 20150214 |
|
| EXPY | Termination of patent right or utility model |