CN206311888U - A kind of gas guide bar structure of outer layer exposure machine - Google Patents
A kind of gas guide bar structure of outer layer exposure machine Download PDFInfo
- Publication number
- CN206311888U CN206311888U CN201621474427.6U CN201621474427U CN206311888U CN 206311888 U CN206311888 U CN 206311888U CN 201621474427 U CN201621474427 U CN 201621474427U CN 206311888 U CN206311888 U CN 206311888U
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- China
- Prior art keywords
- gas guide
- guide bar
- pcb board
- exposure machine
- glass plate
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Abstract
The utility model is applied to gas guide bar field, there is provided a kind of gas guide bar structure of outer layer exposure machine, the gas guide bar structure includes four gas guide bars, four gas guide bars are placed on the glass plate of exposure machine jointly with pcb board, and four gas guide bars are respectively arranged at the four side of pcb board, it is not more than 1.5cm with the horizontal range of pcb board edges of boards near one side of pcb board on the gas guide bar, 1.5cm is not more than with the horizontal range of glass plate edge away from one side of pcb board on the gas guide bar.By adjusting the size of gas guide bar, make the gas guide bar region that vacuumizes of large area covering pcb board surrounding needs as far as possible, the phenomenon of Newton's ring is produced because air-breathing is bad so as to avoid pcb board side.And then the production yield of pcb board is improve, reduce production cost.And the gas guide bar of monoblock causes that glass plate stress is more, and will not produce the situation for damaging glass by pressure, improves the security of production.
Description
Technical field
The utility model belongs to gas guide bar field, more particularly to a kind of gas guide bar structure of outer layer exposure machine.
Background technology
One piece of glass plate is equipped with the work top of existing semi-automatic exposure machine, during normal operation, first by pcb board
It is placed on the glass plate of semi-automatic exposure machine, then, gas guide bar is placed on the glass plates, and positioned at the two of pcb board
Side, in case limited slip plate and cause sheet breakage.Edges of boards with pcb board are every between pcb board side and glass plate edge as starting point
10cm places a gas guide bar, untill the distance of gas guide bar and glass plate edge is less than 10cm.
, it is necessary to carry out vacuumize process to pcb board surrounding during exposure.However, because the distance between gas guide bar is excessive, no
The region for needing to vacuumize can be well covered, therefore vacuumizing effect can be caused bad, so that the edges of boards air-breathing of pcb board is not
It is good, Newton's ring phenomenon is produced, and then the complex pcb board of circuit cannot be produced.Thus, semi-automatic exposure machine can only make line
The relatively simple pcb board in road, the intensive item number of circuit can only be arranged into the more preferable Full-automatic exposure machine volume production of process capability, production
Operating type directly affects the mobility of machine and the flexibility of manufacture production.
If additionally, shortening the distance between gas guide bar, increasing the quantity of gas guide bar to cover more regions, then can make
Obtain glass plate discontinuity.When somewhere pressure is excessive, there is the risk for crushing glass plate, there is potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of gas guide bar structure of outer layer exposure machine, it is intended to improved
The production yield of pcb board, reduces production cost.
In order to solve the above technical problems, the utility model is achieved in that a kind of gas guide bar structure of outer layer exposure machine,
The gas guide bar structure includes four gas guide bars, and four gas guide bars are placed on the glass plate of exposure machine jointly with pcb board,
And four gas guide bars are respectively arranged at the four side of pcb board, near one side of the pcb board and PCB on the gas guide bar
The horizontal range of plate edges of boards is not more than 1.5cm, on the gas guide bar away from the pcb board one side and glass plate edge level
Distance no more than 1.5cm.
Further, the one side on the gas guide bar near the pcb board is with the horizontal range of the pcb board edges of boards
1cm-1.5cm, the horizontal range on one side and the glass plate edges of boards that the glass plate is close on the gas guide bar is 1cm-
1.5cm。
Further, the gas guide bar is rectangular.
Further, the equal length of the one side with the pcb board edges of boards of the pcb board is close on the gas guide bar.
Further, the gas guide bar is made by scrapping PCB substrate.
Compared with prior art, beneficial effect is the utility model：A kind of outer layer exposure machine of the present utility model is led
Gas bar structure, a gas guide bar is respectively provided with four sides of pcb board, on the gas guide bar near the pcb board one side with it is described
The horizontal range of pcb board edges of boards is not more than 1.5cm, the one side away from the pcb board and the glass edges of boards on the gas guide bar
The distance of edge is not more than 1.5cm.By adjusting the size of gas guide bar, make gas guide bar large area covering pcb board four as far as possible
Week needs the region that vacuumizes, and the phenomenon of Newton's ring is produced because air-breathing is bad so as to avoid pcb board side.And then improve
The production yield of pcb board, reduces scrap products, reduces production cost.And the gas guide bar of monoblock causes glass plate stress
More it is, the situation for damaging glass by pressure will not be produced, improves the security of production.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the gas guide bar structure of outer layer exposure machine that the utility model embodiment is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
As shown in figure 1, a kind of gas guide bar structure of the outer layer exposure machine provided for the utility model embodiment, it includes four
Bar gas guide bar 1, four gas guide bars 1 are placed on the glass plate 20 of exposure machine jointly with pcb board 10, and four air guides
Bar 1 is respectively arranged at the four side of pcb board 10.Near one side of the pcb board 10 and the edges of boards of pcb board 10 on the gas guide bar 1
Horizontal range be not more than 1.5cm, on the gas guide bar 1 away from the pcb board 10 one side and the edge of glass plate 20 level
Distance no more than 1.5cm.So that the gas guide bar 1 covers the surrounding of the pcb board 10 as far as possible needs what is vacuumized
Region, reduces due to edges of boards air-breathing bad phenomenon caused by Newton's ring phenomenon, improves the production yield of pcb board 10, reduces
Scrap products, reduce production cost.
Specifically, in the utility model embodiment, on the gas guide bar 1 near one side of the pcb board 10 with it is described
The distance of the edges of boards of pcb board 10 is 1cm-1.5cm, near one side of the glass plate 20 and the glass plate on the gas guide bar 1
The distance of 20 edges of boards is 1cm-1.5cm.
The gas guide bar 1 is rectangular, near one side of the pcb board 10 and the edges of boards of the pcb board 10 on the gas guide bar 1
Equal length so that the gas guide bar 1 can be wrapped in the surrounding of the pcb board 10, needs are covered as much as possible and are taken out very
Empty region.And one monoblock gas guide bar 1 be covered on glass plate 20 so that the stress of the glass plate 20 is more uniformly distributed, prevent institute
Glass plate 20 is stated to be damaged by pressure by gas guide bar 1.
In the utility model embodiment, the gas guide bar 1 is made by the PCB substrate scrapped.Realize twice laid,
Further save production cost.Can certainly be specially customized by the producer of production gas guide bar.
A kind of gas guide bar structure of outer layer exposure machine that the utility model embodiment is provided, respectively sets on four sides of pcb board 10
There is a gas guide bar 1, the one side on the gas guide bar 1 near the pcb board 10 is not more than with the distance of the edges of boards of the pcb board 10
1.5cm, one side on the gas guide bar 1 away from the pcb board 10 is not more than 1.5cm with the distance at the edge of the glass plate 20.
By adjusting the size of gas guide bar 1, make the area that the large area covering surrounding needs of pcb board 10 are vacuumized as far as possible of the gas guide bar 1
Domain, the phenomenon of Newton's ring is produced so as to avoid the edges of boards of pcb board 10 because air-breathing is bad.And then improve the life of pcb board 10
Yield is produced, scrap products are reduced, production cost is reduced.And one monoblock pcb board 10 cause the stress of glass plate 20 more
It is, the situation for damaging glass by pressure will not be produced, improves the security of production.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of gas guide bar structure of outer layer exposure machine, it is characterised in that the gas guide bar structure includes four gas guide bars, described
Four gas guide bars are placed on the glass plate of exposure machine jointly with pcb board, and four gas guide bars are respectively arranged at pcb board
Four side, one side on the gas guide bar near the pcb board is not more than 1.5cm with the horizontal range of pcb board edges of boards, described to lead
It is not more than 1.5cm with the horizontal range of glass plate edge away from one side of the pcb board in gas bar.
2. the gas guide bar structure of outer layer exposure machine as claimed in claim 1, it is characterised in that near described on the gas guide bar
One side of pcb board is 1cm-1.5cm with the horizontal range of the pcb board edges of boards, near the glass plate on the gas guide bar
While being 1cm-1.5cm with the horizontal range of the glass plate edges of boards.
3. the gas guide bar structure of outer layer exposure machine as claimed in claim 1 or 2, it is characterised in that the gas guide bar is rectangular.
4. the gas guide bar structure of outer layer exposure machine as claimed in claim 1 or 2, it is characterised in that be close on the gas guide bar
The equal length of one side of the pcb board and the pcb board edges of boards.
5. the gas guide bar structure of outer layer exposure machine as claimed in claim 1 or 2, it is characterised in that the gas guide bar is by scrapping
PCB substrate is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474427.6U CN206311888U (en) | 2016-12-29 | 2016-12-29 | A kind of gas guide bar structure of outer layer exposure machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621474427.6U CN206311888U (en) | 2016-12-29 | 2016-12-29 | A kind of gas guide bar structure of outer layer exposure machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311888U true CN206311888U (en) | 2017-07-07 |
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ID=59248757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621474427.6U Active CN206311888U (en) | 2016-12-29 | 2016-12-29 | A kind of gas guide bar structure of outer layer exposure machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107438334A (en) * | 2017-07-12 | 2017-12-05 | 奥士康精密电路（惠州）有限公司 | It is a kind of to reduce the ill-exposed method of pcb board |
-
2016
- 2016-12-29 CN CN201621474427.6U patent/CN206311888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107438334A (en) * | 2017-07-12 | 2017-12-05 | 奥士康精密电路（惠州）有限公司 | It is a kind of to reduce the ill-exposed method of pcb board |
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