CN101184365A - Upper stannum intake automatic selectivity soldering stove - Google Patents
Upper stannum intake automatic selectivity soldering stove Download PDFInfo
- Publication number
- CN101184365A CN101184365A CNA2007101917573A CN200710191757A CN101184365A CN 101184365 A CN101184365 A CN 101184365A CN A2007101917573 A CNA2007101917573 A CN A2007101917573A CN 200710191757 A CN200710191757 A CN 200710191757A CN 101184365 A CN101184365 A CN 101184365A
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- CN
- China
- Prior art keywords
- tin
- impeller
- impeller shaft
- feeding
- diversion cavity
- 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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Abstract
The invention relates to a soldering furnace for welding a PCB board, which comprises a tin furnace casing, an internal chamber arranged in the tin furnace casing, and a wave source generator arranged in the internal chamber, wherein, the wave source generator comprises a tin cavity and a tin-feeding device; the tin-feeding device is provided with a guiding cavity, an impeller and a motor, wherein, the impeller comprises a plurality of vanes and an impeller shaft; the vanes are fixedly arranged at the lower end of the impeller shaft and are positioned in the guiding cavity; the impeller shaft is extended out of the guiding cavity; a bearing is arranged at the upper end of the impeller shaft; the bearing is connected with the motor via a belt; a tin-feeding hole is arranged on the head cover of the guiding cavity; a tin-discharging hole is arranged on the sidewall of the guiding cavity. The invention is simple and compact in structure, and effectively overcomes the disadvantages on structure, installation and tin-feeding effect of the primary lower tin-feeding mode by using the upper tin-feeding mode, optimizes the route from tin liquor flowing into the tin-feeding hole to flowing out of the tin-discharging hole, and ensures the continuous stability of the tin wave.
Description
Technical field
The present invention relates to a kind of solder furnace that is used for the pcb board welding.
Background technology
Common tin wave generating machine adopts the mode of advancing tin down, tin input hole is arranged on the below of tin wave generating machine, the tin liquor of fusion enters in the tin wave generating machine from the tin input hole of below under the effect of tin wave generating machine internal impeller, annotates tin by the tin hole that goes out that is arranged at the generator sidewall in storage tin chamber again.But there is following deficiency in so following tin wave generating machine that advances the tin structure: at first, owing to inhale tin from the tin wave generating machine below, this just need keep between bottom surface, chamber of melting the tin chamber and the tin wave generating machine certain between from, make the interlayer of tin between can passing through arrive tin input hole, the existence of spacing, raise the setting height(from bottom) of tin wave generating machine, certainly will have influence on the compactedness of structure; Secondly, tin sucks from the below of tin wave generating machine, has part tin to gush out from the gap between rotating shaft and the loam cake, influences the rotating shaft rotation, and in addition, tin liquor directly splash arrives the belt pulley of top, thereby influences the smooth and easy rotation of belt pulley, influences the transmission effect.
Summary of the invention
To cause the weld defect that expands with heat and contract with cold and cause in order overcoming above-mentioned because pcb board sharply heats up, to the invention provides a kind of PCB board preheating device of soldering stove.
The technical solution adopted for the present invention to solve the technical problems is: a kind of upper stannum intake automatic selectivity soldering stove, has the tin stove outer covering, in the tin stove outer covering, be provided with inner bag, be provided with by the tin chamber in the inner bag and advance the wave source generator that the tin device is formed, describedly advance the tin device and have diversion cavity, impeller and motor, impeller is made up of blade and impeller shaft, vanes fixed is installed in the lower end of impeller shaft and is placed in the diversion cavity, impeller shaft stretches out diversion cavity and is provided with bearing in the upper end, be connected with belt between bearing and the motor, on the top cover of diversion cavity, offer tin input hole, on the sidewall of diversion cavity, offer out the tin hole.
In order to make more compact structure, further: described impeller shaft is stretched out by tin input hole, between be provided with into tin gap, the width that enters the tin gap is 2～10mm, and tin liquor can be entered in the diversion cavity by entering the tin gap.
In order to make bearing have high-temperature-resistant and anti-corrosion, further: described bearing is a graphite bearing.
For solder furnace is placed steadily, more further: the below of described tin stove outer covering is provided with the pin cup.
The present invention is simple and compact for structure, novel in design, adopted the mode of enterprising tin, advancing the tin mode under effectively having overcome originally needs to be provided with the tin interlayer between molten tin chamber and tin wave generating machine, structure, install and advance all exist on the tin effect not enough, optimized tin liquor and gone out circuit flowing into by tin input hole, guaranteed the continuous stability of tin ripple by going out the tin orifice flow.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1. tin stove outer covering 2. inner bags 3. tin chambeies 4. diversion cavity, 5. impeller 5-1. blade 5-2. impeller shafts, 6. motors, 7. bearings 8. belts 9. tin input holes 10. go out tin hole 11. pin cups
Embodiment
As Fig. 1, a kind of upper stannum intake automatic selectivity soldering stove shown in Figure 2, has tin stove outer covering 1, in tin stove outer covering 1, be provided with inner bag 2, be provided with by tin chamber 3 in the inner bag 2 and advance the wave source generator that the tin device is formed, describedly advance the tin device and have diversion cavity 4, impeller 5 and motor 6, impeller 5 is made up of blade 5-1 and impeller shaft 5-2, blade 5-1 is fixedly mounted on the lower end of impeller shaft 5-2 and is placed in the diversion cavity 4, impeller shaft 5-2 stretches out diversion cavity 4 and is provided with the bearing 7 of graphite material in the upper end, be connected with belt 8 between bearing 7 and the motor 6, on the top cover of diversion cavity 4, offer tin input hole 9, on the sidewall of diversion cavity 4, offer out tin hole 10.Described impeller shaft 5-2 is stretched out by tin input hole 9, between be provided with into tin gap, advancing the tin gap width is 2～10mm.In addition, below tin stove outer covering 1, be provided with pin cup 11.
During work, pass through belt 8 transmission impellers 5 by motor 6, in diversion cavity 4, form negative pressure, the tin liquor of fusion is inhaled into diversion cavity 4 by entering the tin gap, again under blade 5-1 action of centrifugal force, tin liquor is entered in the tin chamber 3 by the tin hole 10 that goes out on diversion cavity 4 sidewalls, keeps certain pressure to send tin to Hu Kou.
Claims (5)
1. upper stannum intake automatic selectivity soldering stove, has tin stove outer covering (1), in tin stove outer covering (1), be provided with inner bag (2), be provided with by tin chamber (3) in the inner bag (2) and advance the wave source generator that the tin device is formed, it is characterized in that: describedly advance the tin device and have diversion cavity (4), impeller (5) and motor (6), impeller (5) is made up of blade (5-1) and impeller shaft (5-2), blade (5-1) is fixedly mounted on the lower end of impeller shaft (5-2) and is placed in the diversion cavity (4), impeller shaft (5-2) stretches out diversion cavity (4) and is provided with bearing (7) in the upper end, be connected with belt (8) between bearing (7) and the motor (6), on the top cover of diversion cavity (4), offer tin input hole (9), on the sidewall of diversion cavity (4), offer out tin hole (10).
2. soldering tin stove feeding tin from top according to claim 1 is characterized in that: described impeller shaft (5-2) is stretched out by tin input hole (9), between be provided with into tin gap.
3. soldering tin stove feeding tin from top according to claim 2 is characterized in that: described to advance the tin gap width be 2～10mm.
4. soldering tin stove feeding tin from top according to claim 1 is characterized in that: described bearing (7) is a graphite bearing.
5. soldering tin stove feeding tin from top according to claim 1 is characterized in that: the below of described tin stove outer covering (1) is provided with pin cup (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101917573A CN101184365A (en) | 2007-12-18 | 2007-12-18 | Upper stannum intake automatic selectivity soldering stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101917573A CN101184365A (en) | 2007-12-18 | 2007-12-18 | Upper stannum intake automatic selectivity soldering stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101184365A true CN101184365A (en) | 2008-05-21 |
Family
ID=39449390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101917573A Withdrawn CN101184365A (en) | 2007-12-18 | 2007-12-18 | Upper stannum intake automatic selectivity soldering stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101184365A (en) |
-
2007
- 2007-12-18 CN CNA2007101917573A patent/CN101184365A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |