CN2171974Y - Double-cylinder circulation printed circuit plate tin-plating trough - Google Patents
Double-cylinder circulation printed circuit plate tin-plating trough Download PDFInfo
- Publication number
- CN2171974Y CN2171974Y CN 93238723 CN93238723U CN2171974Y CN 2171974 Y CN2171974 Y CN 2171974Y CN 93238723 CN93238723 CN 93238723 CN 93238723 U CN93238723 U CN 93238723U CN 2171974 Y CN2171974 Y CN 2171974Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- tin
- printed circuit
- pcb
- cylinder
- 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
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Abstract
Disclosed is a double-cylinder circulation etched circuit board tin pot, comprising a tin containing cylinder (7), tinning cylinder (4), a horizontal etched circuit board transfer chain composed of a pair of rollers (2) which comprises a head pulley and a bottom pulley, a liquid tin lifting linkage composed of a tin pump (10), a motor (11) and a liquid guiding pipe (9), and a transferring device. The tin pot is formed by that a double cylinder automatic circulation mechanism comprises the tin containing cylinder (7), tinning cylinder (4) and the liquid tin lifting linkage, and the tinned etched circuit board is transferred by the horizontal etched circuit board transfer chain. The utility model has the advantages that the tinned etched circuit board can be heated comparatively even, the primal quality of the etched circuit board can not be affected, and the quality of a plated capsule metal layer is favorable, etc.
Description
The equipment that the utility model uses when relating on printed circuit board (PCB) plating one deck terne metal, the circulating printed circuit board (PCB) pot of especially a kind of twin-tub.
The existing equipment that is used for plating one deck terne metal on printed circuit board (PCB) generally is a tin-containing jar that includes heating element, and tin-containing jar is built-in with and is heated to form liquid terne metal.When using the processing printed circuit board of this tin equipment, only need printed circuit board (PCB) is vertically inserted tin-containing jar, circuit board to be printed vertically takes out after being stained with tin liquor again, can finish the zinc-plated work to printed circuit board (PCB).The structure of this equipment is very simple, and is also more convenient during use.But weak point is: when (1) adopts the processing printed circuit board of this tin-containing jar, printed circuit is vertically to enter and vertical taking-up tin-containing jar, because the liquid lead ashbury metal in the tin-containing jar has certain temperature, for printed circuit board (PCB), it is introduced into part and is heated earlier, is heated after the back entering part, leaves thermal source on the contrary at last and be introduced into part, it is inhomogeneous to cause the printed circuit board (PCB) each several part to be heated, and influences the quality of printed circuit board (PCB).(2) when printed circuit board (PCB) upwards vertically took out, the terne metal that plating is in a liquid state on printed circuit board (PCB) easily caused accumulation in the printed circuit board (PCB) lower part in terrestrial gravitation effect current downflow, influences the plating quality.
The purpose of the utility model, be at the deficiency of above-mentioned technology and provide a kind of printed circuit board (PCB) can level to enter tin equipment, it is comparatively even that printed circuit board (PCB) is heated in the process of plating terne metal, the circulating printed circuit board (PCB) pot of the twin-tub that can not pile up during plating.
Realize the technical scheme that above-mentioned purpose provided:
The circulating printed circuit board (PCB) pot of a kind of twin-tub, it comprises a tin-containing jar (7) with heating element (8), it is characterized in that the circulating printed circuit board (PCB) pot of described twin-tub also comprises:
One is used for the zinc-plated zinc-plated cylinder (4) of printed circuit, this zinc-plated cylinder (4) is positioned at the middle and upper part of described tin-containing jar (4), its middle and upper part one side has the overfall (3) that keeps tin liquor liquid level in its cylinder, and its left and right sides has respectively to be in same horizontal level material mouth 5,5 these zinc-plated cylinders (4) for the printed circuit board (PCB) turnover and also comprises heating element (8);
A horizontal printed circuit board (PCB) conveyer chain, this conveyer chain by be distributed in the described pot (4) and include respectively be positioned on the same vertical line and in relative rotation the pair of rollers (2) that constitutes of upper roller and bottom roller form, the gap that clamping is arranged between the upper roller of described pair of rollers and the bottom roller and printed circuit board (PCB) is passed through, this gap is consistent with the height of described material mouth (5);
A tin liquor lifting device, it is used to keep the stable of the interior liquid level of described pot (4), and it comprises that a tin pump (10) that is arranged in described Sheng molten tin bath (7) and is connected with motor (11) links to each other with this tin pump with one and stretches into the catheter (9) of described pot (4);
One is used to transmission device that described pair of rollers (2) rotating speed is consistent, and it is made up of a gearing (12) that links to each other with described pair of rollers (2) and a drive motors (13).
Described scheme has adopted the twin-tub cycling mechanism, this structure utilizes the tin liquor lifting device that the aqueous terne metal in the tin-containing jar (7) is sent in the zinc-plated cylinder (4) endlessly, when the liquid level of zinc-plated cylinder (4) is higher than overfall (3), then overflow by overfall (3), again return into tin-containing jar (7), form the Automatic Cycle of aqueous terne metal.As long as inject the interior aqueous terne metal of zinc-plated cylinder (4) greater than the aqueous terne metal that is overflowed by overfall (3) and material mouthful (5) by the tin liquor lifting device, the liquid level in the then zinc-plated cylinder (4) can keep stable.
Horizontal printed circuit board (PCB) conveyer chain in the described scheme, the rotating speed of each pair of rollers (2) is synchronous, after printed circuit board (PCB) enters zinc-plated cylinder (4) by material mouthful (5), by they successively clamping printed circuit board (PCB) and transmit and zinc-plated to material mouthful (5 ').Because printed circuit board (PCB) is that level enters zinc-plated cylinder (4) and sent zinc-plated cylinder (4) by level, being heated of monoblock printed circuit board (PCB) is more even, can not take place because the packing phenomenon that earth attraction caused.
Compare with prior art, the technical program can guarantee that printed circuit board (PCB) suffered heat in the process of plating terne metal is comparatively even, can the quality of printed circuit board (PCB) not impacted, the layer of lead-tin alloy quality of institute's plating is better, reaches the purpose of the utility model.
The utility model has following accompanying drawing, and accompanying drawing has provided an instantiation.
Fig. 1 is the utility model structural representation;
Fig. 2 illustrates for structure among Fig. 1 is under the situation of overlooking the position of its pair of rollers (2) and transmission mechanism.
The 2-pair of rollers, it comprises upper roller and bottom roller, constitutes horizontal printed circuit board (PCB) transfer chain by these pairs of rollers.3-is positioned at the overfall of zinc-plated cylinder (4) one sides.The zinc-plated cylinder of 4-.6-printed circuit board (PCB), arrow are represented its direction of advance.5,5 '-material mouthful.The 7-tin-containing jar.The 8-electric heating element adopts tubular heater here.The 9-catheter.10-tin pump.The 11-motor, it drives tin pump (10).The 12-gearing, it can adopt known gear drive or known sprocket wheel connecting gear, and it is used to make the rotating speed unanimity of described pair of rollers.The 13-drive motor.1-is arranged in the aqueous terne metal of zinc-plated cylinder (4) and tin-containing jar (7).
This routine course of work front is addressed, no longer repeats here.
Claims (2)
1, the circulating printed circuit board (PCB) pot of a kind of twin-tub, it comprises a tin-containing jar (7) with heating element (8), it is characterized in that the circulating printed circuit board (PCB) pot of described twin-tub also comprises:
One is used for the zinc-plated zinc-plated cylinder (4) of printed circuit board (PCB), this zinc-plated cylinder (4) is positioned at the middle and upper part of described tin-containing jar (7), its middle and upper part has the overfall (3) that keeps tin liquor liquid level in its cylinder first, its left and right sides has respectively and is in the material mouth (5,5 ') of same horizontal level for printed circuit board (PCB) turnover, and there is heating element (8) its inside;
A horizontal printed circuit board (PCB) conveyer chain, this conveyer chain by be distributed in the described pot (4) and include respectively be on the same vertical line and in relative rotation the pair of rollers that constitutes of upper roller and bottom roller form, the gap that clamping is arranged between the upper roller of described pair of rollers and the bottom roller and printed circuit board (PCB) is passed through, this gap is consistent with the height of described material mouth (5,5 ');
A tin liquor lifting device, it is used to keep the stable of the interior liquid level of described pot (4), and it comprises that a tin pump (10) that is arranged in described Sheng molten tin bath (7) and is connected with motor (11) links to each other with this tin pump (10) with one and stretches into the catheter (9) of described pot (4);
One is used to transmission device that described pair of rollers (2) rotating speed is consistent, and it is made up of a transmission mechanism (12) that links to each other with described pair of rollers (2) and a drive motors (13).
2, by the circulating printed circuit board (PCB) pot of the described twin-tub of claim 1, it is characterized in that described heating element (8) is a tubular heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238723 CN2171974Y (en) | 1993-05-17 | 1993-05-17 | Double-cylinder circulation printed circuit plate tin-plating trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238723 CN2171974Y (en) | 1993-05-17 | 1993-05-17 | Double-cylinder circulation printed circuit plate tin-plating trough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2171974Y true CN2171974Y (en) | 1994-07-13 |
Family
ID=33813390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238723 Expired - Fee Related CN2171974Y (en) | 1993-05-17 | 1993-05-17 | Double-cylinder circulation printed circuit plate tin-plating trough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2171974Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750281A (en) * | 2017-11-07 | 2019-05-14 | 东莞市腾明智能设备有限公司 | A kind of horizontal copper precipitation unit |
-
1993
- 1993-05-17 CN CN 93238723 patent/CN2171974Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750281A (en) * | 2017-11-07 | 2019-05-14 | 东莞市腾明智能设备有限公司 | A kind of horizontal copper precipitation unit |
| CN109750281B (en) * | 2017-11-07 | 2024-04-12 | 东莞市腾明智能设备有限公司 | Horizontal copper deposition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |