CN204661817U - A kind of PCB sprays tin tool - Google Patents
A kind of PCB sprays tin tool Download PDFInfo
- Publication number
- CN204661817U CN204661817U CN201520322674.3U CN201520322674U CN204661817U CN 204661817 U CN204661817 U CN 204661817U CN 201520322674 U CN201520322674 U CN 201520322674U CN 204661817 U CN204661817 U CN 204661817U
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- tin
- pcb
- tool
- pad
- inside casing
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Abstract
The utility model discloses a kind of PCB and sprays tin tool, it comprises a shape is rectangular fixture housing, in described fixture housing, be provided with the inside casing that a shape is parallelogram, described inside casing be below the activity bar of removable setting, its excess-three limit is the fixed strip be fixedly installed.When using tool of the present utility model to carry out spray tin, PCB is miter angle spray tin, and the pad of all directions is consistent with the angle of air knife, does not have the impact of unbalance stress, so tool has the following advantages: 1, pad tin face uniformity, and tin is thick reaches 2-25 μm; The rack of fusion that 2, can not cause because tin face is excessively thin; Tin short circuit is connected between the pad that 3, can not cause because tin is blocked up.
Description
Technical field
The utility model relates to PCB tin jet device field, particularly relates to a kind of PCB and sprays tin tool.
Background technology
Spray tin is a kind of usual way of current PCB surface-treated, and its mode of operation is:
By tin PCB to be painted after pre-treatment vertical hanging on the hook of tin-spraying machine, utilize the lifting of hook, by PCB be 90 degree be dipped vertically into tin stove after, again PCB is proposed from tin stove after 3-5S, utilize the powerful hot blast that the air knife behind tin stokehold blows out, the tin in pcb board face is blown smooth, finally plate is taken off from hook, after aftertreatment washing, complete the operation of spray tin.
In prior art, during spray tin, upper and lower two groups of PAD are vertical with air knife, and stressed comparatively large, tin surface evenness is good, and the PAD at two ends, left and right is due to parallel with air knife, and the stressed time is shorter, and tin is thicker, unfairness; Therefore, this type of mode of operation, the planarization of spray tin, pad entirety is poor, and tin is thick general at 0.5-40um range changing, pole unfairness, and the thin position of tin is often because of the thick rack of fusion that causes not of tin, and the position that tin is thick often causes tin short circuit due to blocked up.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of PCB to spray tin tool, is intended to solve existing PCB and sprays in tin process the problems such as planarization is poor, rack of fusion easy, tin short circuit.
The technical solution of the utility model is as follows:
A kind of PCB sprays tin tool, wherein, comprising a shape is rectangular fixture housing, in described fixture housing, be provided with the inside casing that a shape is parallelogram, described inside casing be below the activity bar of removable setting, its excess-three limit is the fixed strip be fixedly installed.
Described PCB sprays tin tool, and wherein, the acute angle of the adjacent edge of described inside casing is 45 degree.
Described PCB sprays tin tool, wherein, the fixed strip that described activity bar is adjacent is provided with multiple circular hole for fixing activity bar.
Described PCB sprays tin tool, wherein, described fixed strip arranges a circular hole every 20mm.
Described PCB sprays tin tool, and wherein, the diameter of described circular hole is 3.2 mm.
Beneficial effect: when using tool of the present utility model to carry out spray tin, PCB is miter angle spray tin, and the pad of all directions is consistent with the angle of air knife, does not have the impact of unbalance stress, so tool has the following advantages: 1, pad tin face uniformity, tin is thick reaches 2-25 μm; The rack of fusion that 2, can not cause because tin face is excessively thin; Tin short circuit is connected between the pad that 3, can not cause because tin is blocked up.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of PCB of the utility model sprays the preferred embodiment of tin tool.
Fig. 2 is the spray tin schematic diagram adopting PCB of the present utility model to spray tin tool.
Embodiment
The utility model provides a kind of PCB to spray tin tool, for making the purpose of this utility model, technical scheme and effect clearly, clearly, further describes below to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is the structural representation that a kind of PCB of the utility model sprays the preferred embodiment of tin tool, as shown in the figure, it comprises a shape is rectangular fixture housing 100, the inside casing that a shape is parallelogram is provided with in described fixture housing, described inside casing be below the activity bar 220 of removable setting, its excess-three limit is the fixed strip 210 be fixedly installed.
Fixture housing in the utility model and inside casing use titanium material, and fixture housing is rectangle, and the tetragon of inside casing acutangulates the parallel four limit row frames into miter angle.
Upper, left and right three limits of inside casing are the fixed strip 210 be fixedly installed, and are the activity bar 220 of removable adjustment below.During spray tin, PCB is that miter angle is put in inside casing, and the size that underside bar will move PCB carries out suitable adjustment, makes stable being fixed in fixture of PCB energy.The fixed strip 210 that described activity bar 220 is adjacent is provided with multiple circular hole 211 for fixing activity bar 220, the convenient position regulating activity bar 220, and when regulating, because circular hole 211 is symmetrical at left and right sides fixed strip 210, so can move and to regulate and fixing by keeping parallelism.
Concrete, described fixed strip 210 arranges a circular hole 211 every 20mm, and namely the amplitude of accommodation of fixed strip 210 can be 20mm.The diameter of described circular hole 211 is preferably 3.2mm.
Adopt traditional way spray tin time, transverse direction PAD(pad) with perpendicular direction PAD through air knife, by the impact of corresponding air knife position, stressed inconsistent, often tin face is uneven for horizontal side PAD.And adopt device of the present utility model to carry out spray tin, as shown in Figure 2, on pcb board 300, horizontal PAD 310 and vertical PAD 310 are all miter angle with air knife, and uniform force unanimously, sprays the PAD 310 tin face also uniformity after tin.
In sum, after adopting device of the present utility model, PCB is miter angle spray tin, and the pad of all directions is consistent with the angle of air knife, and do not have the impact of unbalance stress, tool has the following advantages: 1, pad tin face uniformity, and tin is thick reaches 2-25 μm; The rack of fusion that 2, can not cause because tin face is excessively thin; Tin short circuit is connected between the pad that 3, can not cause because tin is blocked up.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (5)
1. a PCB sprays tin tool, it is characterized in that, comprising a shape is rectangular fixture housing, in described fixture housing, be provided with the inside casing that a shape is parallelogram, described inside casing be below the activity bar of removable setting, its excess-three limit is the fixed strip be fixedly installed.
2. PCB according to claim 1 sprays tin tool, and it is characterized in that, the acute angle of the adjacent edge of described inside casing is 45 degree.
3. PCB according to claim 1 sprays tin tool, it is characterized in that, the fixed strip that described activity bar is adjacent is provided with multiple circular hole for fixing activity bar.
4. PCB according to claim 3 sprays tin tool, it is characterized in that, described fixed strip arranges a circular hole every 20mm.
5. PCB according to claim 3 sprays tin tool, and it is characterized in that, the diameter of described circular hole is 3.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322674.3U CN204661817U (en) | 2015-05-19 | 2015-05-19 | A kind of PCB sprays tin tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322674.3U CN204661817U (en) | 2015-05-19 | 2015-05-19 | A kind of PCB sprays tin tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204661817U true CN204661817U (en) | 2015-09-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520322674.3U Active CN204661817U (en) | 2015-05-19 | 2015-05-19 | A kind of PCB sprays tin tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204661817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113966098A (en) * | 2021-10-27 | 2022-01-21 | 西安微电子技术研究所 | Hot air leveling processing device and method for TMM microwave dielectric plate |
-
2015
- 2015-05-19 CN CN201520322674.3U patent/CN204661817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113966098A (en) * | 2021-10-27 | 2022-01-21 | 西安微电子技术研究所 | Hot air leveling processing device and method for TMM microwave dielectric plate |
| CN113966098B (en) * | 2021-10-27 | 2023-09-05 | 西安微电子技术研究所 | Hot air leveling processing device and method for TMM microwave dielectric plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |