CN206497306U - PCB developing apparatus - Google Patents
PCB developing apparatus Download PDFInfo
- Publication number
- CN206497306U CN206497306U CN201621492192.3U CN201621492192U CN206497306U CN 206497306 U CN206497306 U CN 206497306U CN 201621492192 U CN201621492192 U CN 201621492192U CN 206497306 U CN206497306 U CN 206497306U
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- China
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- cylinder
- developer solution
- overfall
- development
- sensing valve
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Abstract
A kind of PCB developing apparatus, including development cylinder, developer solution supplements cylinder, circulating line, circulating pump and control device, connected between development cylinder and developer solution the supplement cylinder by circulating line, the circulating pump is installed on circulating line, the developer solution is circulated between development cylinder and developer solution supplement cylinder, the circulating pump provides power for developer solution circulation, develop first overfall of the cylinder provided with connection development work region, second overfall, first overfall is located at the top of development cylinder, second overfall is located at the lower section of the first overfall, the control device includes a sensing valve and the controller being connected on sensing valve, the sensing valve is installed on the second overfall, the utility model can quickly be changed old developer solution, film amount is held in reduction, effectively improve the quality of product.
Description
Technical field
The utility model is related to a kind of secondary process tool of pcb board production, and in particular to a kind of PCB developing apparatus.
Background technology
Development is the important procedure of PCB productions, and in developing process, the photosensitive material of unexposed portion does not polymerize
Reaction, meets weak base Na2CO3(0.9-1.3%) dissolves.And the photosensitive material polymerizeing then is stayed in plate face, following copper face is protected not
Liquid medicine dissolving is etched, so that the dry film of unexposed portion be removed, photosensitive part is left.
However, in existing developing apparatus, outer layer develops cylinder after with the restarting circulation of full cylinder, because in the pipe of circulation
The development liquid medicine of relatively large volume is had in road and circulating pump so that liquid level is substantially reduced in development cylinder, during production,
Only increase newly decoction by the liquid level of reduction supplement completely it is full after, the big old developer solution of molten film amount can just be overflowed in overfall position
Develop cylinder body so that production longer time is all without there is overflow phenomena, and decoction freshness is relatively low, and then obtains the quality of product
Less than guarantee.
Utility model content
Based on this, it is necessary to which for deficiency of the prior art, there is provided a kind of PCB developing apparatus.
A kind of PCB developing apparatus, including development cylinder, developer solution supplement cylinder, circulating line, circulating pump and control device, institute
Stating developer solution supplement cylinder is used to hold developer solution, and the development cylinder and developer solution are connected between supplementing cylinder by circulating line, institute
State circulating pump to be installed on circulating line, the developer solution is circulated between development cylinder and developer solution supplement cylinder, the circulating pump
It is development work region to circulate the top provided on the inside of power, the development cylinder for developer solution, and development cylinder develops provided with connection
The first overfall, the second overfall of working region, first overfall is located at the top of development cylinder, second overfall
Located at the lower section of the first overfall, the control device includes a sensing valve and the controller being connected on sensing valve, institute
State sensing valve to be installed on the second overfall, the controller is used to control being turned on and off for sensing valve.
Further, it is additionally provided with the development cylinder on a switch, the developer solution supplement cylinder and is again provided with switch, development
Liquid supplement cylinder switch is connected with the switch for the cylinder that develops by circulating line..
Further, liquid level declines when the height of second overfall fills up open the circulation pump after developer solution with the cylinder that develops
Height afterwards maintains an equal level.
The beneficial effect of the utility model PCB developing apparatus is：By setting the second overfall, second on development cylinder
Sensing valve is equiped with overfall, and the position of the second overfall is less than the first overfall, in use, passing through the second overfall
Quickly liquid level is reduced, with the injection of new developer solution, old developer solution flows out from the second overfall, so that old
Developer solution can quickly be changed, reduction hold film amount, effectively improve the quality of product.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model PCB developing apparatus, wherein developer solution supplement cylinder, circulating line, circulation
Pump is not shown.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
As shown in figure 1, the utility model provides a kind of PCB developing apparatus, for being shown to the pcb board in production process
Shadow processing, the PCB developing apparatus includes development cylinder 10, developer solution supplement cylinder (not shown), circulating line (not shown), circulating pump
(not shown) and control device (not shown), the developer solution supplement cylinder are used to hold developer solution, the development cylinder 10 and development
Liquid supplement cylinder between connected by circulating line, the circulating pump is installed on circulating line, the developer solution development cylinder with
Circulated between developer solution supplement cylinder, the circulating pump provides power for developer solution circulation.
Top on the inside of the development cylinder is development work region, and development cylinder is provided with the first of connection development work region
Overfall 11, the second overfall 12, first overfall 11 is located at the top of development cylinder, and second overfall 12 is located at the
The lower section of one overfall 11, it is preferred that the height of second overfall 12 fills up open the circulation pump after developer solution with the cylinder that develops
When liquid level 30 decline after height maintain an equal level.It is additionally provided with a switch, the developer solution supplement cylinder and equally sets on the development cylinder
There is switch, developer solution supplement cylinder switch is connected with the switch for the cylinder that develops by circulating line.
The control device includes a sensing valve 20 and the controller being connected on sensing valve 20, the sensing valve
20 are installed on the second overfall 12, and the controller is used to control being turned on and off for sensing valve 20.
During work, with full developer solution on development cylinder, the liquid level 30 of developer solution is reached at the first overfall 11, the second overfall
12 sensing valve 20 is closed；Open the circulation pump simultaneously opens switch, and the developer solution backflow in development cylinder is flowed into
In circulating pump and circulating line, the liquid level 30 in development cylinder drops to the position of the second overfall 12, meanwhile, sensing valve 20 dozens
Open；In the flow of development, with the supplement of new developer solution, old liquid will overflow at the second overfall 12；Complete aobvious
After shadow processing, sensing valve 20 is closed, the liquid level 30 of developer solution is come back at the first overfall 11.Switch is closed again
Close, remove circulating pump and cleaned, and next time in use, reinstalling.
The beneficial effect of the utility model PCB developing apparatus is：By setting the second overfall 12 on development cylinder 10,
Sensing valve 20 is equiped with second overfall 12, and the position of the second overfall 12 is less than the first overfall 11, in use, logical
Cross the second overfall 12 quick by the height reduction of liquid level 30, with the injection of new developer solution, old developer solution is from the second overflow
Mouth 12 flows out, so that old developer solution can be changed quickly, film amount is held in reduction, effectively improves the quality of product.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of PCB developing apparatus, it is characterised in that：Including development cylinder, developer solution supplement cylinder, circulating line, circulating pump and control
Device processed, the developer solution supplement cylinder, which is used to hold between developer solution, development cylinder and developer solution the supplement cylinder, passes through circulation pipe
Road is connected, and the circulating pump is installed on circulating line, and the developer solution is circulated between development cylinder and developer solution supplement cylinder, institute
It is development work region that circulating pump, which is stated, for the top that developer solution circulation is provided on the inside of power, the development cylinder, and development cylinder is provided with
Connect the first overfall, second overfall in development work region, first overfall is located at the top of development cylinder, described the
Two overfalls are located at the lower section of the first overfall, and the control device includes a sensing valve and the control being connected on sensing valve
Device processed, the sensing valve is installed on the second overfall, and the controller is used to control being turned on and off for sensing valve.
2. PCB developing apparatus according to claim 1, it is characterised in that：A switch is additionally provided with the development cylinder, it is described
Switch is again provided with developer solution supplement cylinder, developer solution supplement cylinder switch is connected with the switch for the cylinder that develops by circulating line.
3. PCB developing apparatus according to claim 1, it is characterised in that：The height of second overfall is with the cylinder that develops
Height after liquid level declines when filling up open the circulation pump after developer solution maintains an equal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492192.3U CN206497306U (en) | 2016-12-30 | 2016-12-30 | PCB developing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492192.3U CN206497306U (en) | 2016-12-30 | 2016-12-30 | PCB developing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206497306U true CN206497306U (en) | 2017-09-15 |
Family
ID=59802988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621492192.3U Active CN206497306U (en) | 2016-12-30 | 2016-12-30 | PCB developing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206497306U (en) |
-
2016
- 2016-12-30 CN CN201621492192.3U patent/CN206497306U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |