CN207058597U - A kind of substrate absorption device - Google Patents
A kind of substrate absorption device Download PDFInfo
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- CN207058597U CN207058597U CN201720950798.5U CN201720950798U CN207058597U CN 207058597 U CN207058597 U CN 207058597U CN 201720950798 U CN201720950798 U CN 201720950798U CN 207058597 U CN207058597 U CN 207058597U
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- air inlet
- flow distribution
- distribution plate
- panel
- absorption device
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Abstract
A kind of substrate absorption device, it includes：Bottom plate, air inlet, the side connection negative pressure source of the air inlet are provided with the bottom plate；Panel, the panel are arranged on the opposite side of the air inlet, some through holes are provided with the panel；Also include airflow uniform distribution device, the airflow uniform distribution device, which comprises at least, is arranged at flow distribution plate between the bottom plate and the panel, and the air-flow that the air-flow on the flow distribution plate on the region of the negative pressure source is less than on the flow distribution plate on the region away from the negative pressure source by area passes through area.Substrate absorption device provided by the utility model, by being provided with flow distribution plate between panel and bottom plate, air-flow on flow distribution plate at air inlet is less than away from the air-flow at air inlet by area by area, is avoided the occurrence of and is more than the situation away from the adsorptive pressure at air inlet close to adsorptive pressure at air inlet.
Description
Technical field
It the utility model is related to PCB production equipment technologies, and in particular to a kind of substrate absorption device.
Background technology
With the development that electronics industry is maked rapid progress, the great raising of demand to thin plate and soft board, and first device of diversification
Part it is old go out it is not poor so that the requirement more and more higher of PCB detection industries.And pcb board suction base is directly to be connect with detected PCB
Touch, testing result will be directly influenced.
At present, the negative pressure that pcb board suction base generally includes negative-pressure adsorption platform and is arranged on below negative-pressure adsorption platform
Source, negative pressure source by negative-pressure adsorption platform on pcb board apply absorption affinity uniformity turn into influence testing result most critical because
One of element.Therefore, pcb board absorption negative pressure platform generally opens up equally distributed multiple gas on platform panel in the prior art
Hole, to obtain the uniform absorption affinity to pcb board.But find in actual use it is really not so, still exist to pcb board
The defects of absorption affinity is uneven, this also turns into those skilled in the art to one of problem of solution.Those skilled in the art with
The problem that phase solves also has：Absorption negative pressure tabletop of platform generally use panel stacks with bottom plate in the prior art is consolidated by housing again
Fixed structure, but due to installation gap, therefore gas in production installation process between housing and panel, housing and bottom plate easily be present
Easily revealed from built-in edge, it is poor so as to cause to adsorb cavity sealing, cause negative pressure loss serious；Footprint is larger, therefore
When being actually used in absorption compared with small area substrate, negative pressure loss is serious, had not only wasted resource but also pcb board can not be sucked by table top.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome pcb board suction base negative pressure of the prior art
The defects of serious is lost, so as to provide a kind of substrate absorption device.
Therefore, the technical solution of the utility model is as follows：A kind of substrate absorption device, it includes：Bottom plate, on the bottom plate
It is provided with air inlet, the side on the air inlet is connected with negative pressure source；Panel, the panel are arranged on the another of the air inlet
Side, some through holes are provided with the panel；Also include airflow uniform distribution device, the airflow uniform distribution device, which comprises at least, to be set
Flow distribution plate between the bottom plate and the panel, the air-flow on the flow distribution plate on the region of the air inlet pass through
The air-flow that area is less than on the flow distribution plate on the region away from the air inlet passes through area.
Further, the stomata that aperture is not waited is provided with the flow distribution plate, wherein the stomata hole away from the air inlet
Footpath is more than the air vent aperture close to the air inlet.
Further, the stomata on the flow distribution plate is uniformly distributed.
Further, rectangular shape is to external diffusion centered on the air inlet for the stomata, on same rectangle
Stomata aperture it is equal, equidistantly distributed between each rectangle.
Further, the stomata on the flow distribution plate is distributed centered on the air inlet in bar spoke shape.
Further, the stomata spacing on each bar spoke straight line is distributed using air inlet as starting point in arithmetic progression, each
Air vent aperture on bar spoke straight line is distributed using air inlet as starting point in Geometric Sequence.
Further, the equal stomata in aperture is provided with the flow distribution plate, wherein entering on the flow distribution plate away from described in
Stomata gap on the region of gas port is less than the stomata gap on the region of the air inlet.
Further, the airflow uniform distribution device also includes the insulation airflow uniform distribution for being arranged on another side surface of the panel
Unit, it is described insulation airflow uniform distribution unit on be provided with some through holes.
Further, the insulation airflow uniform distribution unit is fixed on the non-woven fabrics of the panel surface for tiling.
Further, the fixed frame being correspondingly arranged with the flow distribution plate is respectively arranged with the bottom plate and the panel,
Enclosed between the fixed frame formed with the chamber for installing the flow distribution plate.
Further, multiple first convexes are provided with the bottom plate corresponding with the flow distribution plate in the chamber
Rise, first positioning convex supports the flow distribution plate.
Further, multiple second convexes are provided with the panel corresponding with the flow distribution plate in the chamber
Rise, second positioning convex fixes the flow distribution plate.
Further, the both ends of the surface of the flow distribution plate are respectively embedded into the fixed frame of the bottom plate and the panel, and are led to
Cross encapsulant and seal the flow distribution plate and the fixed frame.
Further, the edge of the non-woven fabrics is fixed by encapsulant and the panel sealing.
Further, the air inlet is connected by pipeline with the negative pressure source, and control valve is provided with the pipeline.
Further, the air inlet is provided with multiple, and multiple air inlets are distributed in the different zones of the bottom plate,
Each air inlet is connected by pipeline with the negative pressure source, and control valve is provided with each pipeline.
Technical solutions of the utility model, have the following advantages that：
1. substrate absorption device provided by the utility model, by being provided with flow distribution plate between panel and bottom plate, pass through
The density of distributed pores on flow distribution plate is set or the aperture of stomata is set so that the air-flow on flow distribution plate at air inlet
Be less than by area away from the air-flow at air inlet by area, by flow distribution plate can uniform each region adsorptive pressure, avoid
Occur being more than the situation away from the adsorptive pressure at air inlet close to adsorptive pressure at air inlet.
2. substrate absorption device provided by the utility model, both can be even and fine by being provided with non-woven fabrics in panel surface
Change the adsorptive pressure of apparatus surface, can be also dielectrically separated from substrate and panel by non-woven fabrics.
3. substrate absorption device provided by the utility model, by non-woven fabrics periphery and flow distribution plate and bottom plate and panel
The edge of contact sets fluid sealant, avoids the leakage of gas, improves adsorption efficiency.
4. substrate absorption device provided by the utility model, by setting multiple binding domains, each binding domain is all provided with
It is equipped with air inlet and connects the pipeline of air inlet and negative pressure source, independent control is provided with the pipeline of each binding domain
Valve, can be by opening on the pipeline connected in one or partial adsorbates region with negative pressure source for controlling the break-make of air-flow
Control valve, other do not select to close, it is possible thereby to economize on resources, kept away by the control valve on the pipeline of the binding domain of substrate covering
Exempt from unnecessary waste.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of the substrate absorption device provided in the first embodiment of the present utility model；
Fig. 2 is the decomposing schematic representation of the adsorbent equipment shown in Fig. 1；
Fig. 3 is the top view of the bottom plate of the adsorbent equipment shown in Fig. 1；
Fig. 4 is the top view of the flow distribution plate of the adsorbent equipment shown in Fig. 1；
Fig. 5 is the top view of the panel of the adsorbent equipment shown in Fig. 1；
Description of reference numerals：
1- bottom plates；11- bottom plate fixed frames；12- air inlets；13- fixing holes；The positioning convex of 14- first；2- flow distribution plates；21-
Stomata；3- panels；31- panel fixed frames；32- through holes；The positioning convex of 33- second；4- non-woven fabrics；5- flanges；6- connectors；7-
Pipeline；8- control valves；9- negative pressure sources.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Conflict can is not formed to be combined with each other.
Embodiment 1
As shown in Figure 1-2, the utility model discloses a kind of substrate absorption device, it includes what is set gradually from the bottom to top
Bottom plate 1, flow distribution plate 2, panel 3 and non-woven fabrics 4.The air inlet 12 being connected with negative pressure source 9, negative pressure source 9 are provided with its bottom plate 1
The side of air inlet 12 is arranged on, panel 3 is arranged on the opposite side of air inlet 12, and some through holes 32 are provided with panel 3.Wherein
Flow distribution plate 2 is arranged between bottom plate 1 and panel 3.3 another side surface of panel is provided with non-woven fabrics 4, is provided with non-woven fabrics 4
Some passages, wherein non-woven fabrics 4, which tile, is fixed on the surface of panel 3, for prevent gas from the edge leakage of non-woven fabrics 4 so as to
Absorption affinity is influenceed, is fixed at the edge of non-woven fabrics 4 using encapsulant and the sealing of panel 3, wherein encapsulant can use for example
The glue such as glass cement or other binding agents.Because substrate has certain electric conductivity, and panel generally use aluminium alloy etc. is led
Electric material is made, therefore layer of non-woven fabric 4 is laid on panel 1, has not only acted as the uniform gas of refinement, the work of uniform adsorption power
With also with insulation effect.
In the present embodiment, as shown in Figures 3 and 5, it is respectively arranged with what is be correspondingly arranged with flow distribution plate 2 on bottom plate 1 and panel 3
Bottom plate fixed frame 11 and panel fixed frame 31, enclosed between bottom plate fixed frame 11 and panel fixed frame 31 formed with for installation point
The chamber of flowing plate 2.In its bottom plate 1 multiple first positioning convex are provided with chamber with 2 corresponding one side of flow distribution plate
14, the first positioning convex 14 is used to support flow distribution plate 2.On same panel 3 in the chamber with 2 corresponding one side of flow distribution plate
Multiple second positioning convex 33 are also equipped with, the second positioning convex 33 and the first positioning convex 14 fix flow distribution plate 2 jointly.
The both ends of the surface of flow distribution plate 2 are respectively embedded into the bottom plate fixed frame 11 and panel fixed frame 31 of bottom plate 1 and panel 3, together
When in order to prevent gas from influenceing from the edge leakage of fixed frame the adsorption effect of adsorbent equipment, flow distribution plate is sealed using encapsulant
2 can use the glue such as glass cement or other binding agents with each fixed frame, wherein encapsulant.
As shown in figure 4, the stomata 21 that aperture is not waited is provided with flow distribution plate 2 in the present embodiment, wherein away from air inlet
Air vent aperture be more than close to air inlet 12 air vent aperture.Stomata 21 on flow distribution plate 2 is centered on air inlet 12 in radiation
Shape is distributed.The wherein size of centre porosity 21 negative pressure flow according to caused by negative pressure source determines with flow velocity, on every radiation straight line
Stomata spacing using centre porosity be that starting point is distributed in arithmetic progression, such as stomata is determined with 1.0~1.5 times of arithmetic progression
Between pitch-row.Air vent aperture on every radiation straight line is distributed using centre porosity as starting point in Geometric Sequence.Such as with 1.2
~1.5 Geometric Sequence determines the size of the stomata on a radiation straight line.
Certainly, the stomata on flow distribution plate can be also uniformly distributed, such as centered on air inlet 12, each stomata 21 is with rectangle shape
Shape is to external diffusion, and the aperture of the stomata on same rectangle is equal, equidistantly distributed between each rectangle.Close to air inlet 12
Rectangle on air vent aperture be less than away from air inlet 12 rectangle on air vent aperture.
In the present embodiment, the air inlet 12 on bottom plate 1 is connected by pipeline 7 with negative pressure source 9, and control is provided with pipeline 7
Valve 8.The side of wherein air inlet 12 is provided with adpting flange 5 and fixture 6, and one end of adpting flange 5 is solid by fixing hole 13
Surely it is connected on bottom plate 1, the other end of adpting flange 5 is fixedly attached on pipeline 7 by fixture 6.Entering in the present embodiment
Gas port 12 is provided with two, and two air inlets 12 are distributed in two different binding domains of bottom plate 1, two suctions in the present embodiment
Attached region passes through two pipelines 7 respectively for equally distributed two rectangle binding domains, two of which air inlet 12 on bottom plate 1
It is connected with two negative pressure sources 9, control valve 8 is provided with each pipeline 7.Certainly, two binding domains on bottom plate 1 can not
It is uniformly distributed, such as another larger area of an area is smaller.For negative pressure motor, control occur for the negative pressure source 9 in the present embodiment
Valve 8 processed is normally opened big flow magnetic valve.
As the embodiment of replacement, more than two multiple rectangle binding domains are also provided with bottom plate 1, wherein
The area of each binding domain can be equal or different, air inlet is provided with each binding domain, each air inlet passes through
Pipeline 7 is connected with negative pressure source 9, and independent control valve 8 is provided with each pipeline 7.When substrate area to be operated is smaller,
The control valve on the pipeline connected in one or partial adsorbates region with negative pressure source can be opened, other suctions not covered by substrate
Control valve selection on the pipeline in attached region is closed, it is possible thereby to economize on resources, avoids unnecessary waste.
As the embodiment of replacement, the equal stomata in aperture is may also set up on flow distribution plate, it is remote wherein on flow distribution plate
The gap between stomata on the region of air inlet is less than the gap between the stomata on the region of air inlet, i.e. flow distribution plate
The upper stomatal frequency close to air inlet is less than the stomatal frequency away from air inlet, is passed through by setting the stomata of different densities to control
The flow area of different zones on flow distribution plate, with the absorption air pressure of uniform different zones, avoid the occurrence of the suction at air inlet
Enclosure pressure is more than the situation away from the adsorptive pressure at air inlet.
Substrate absorption device provided by the utility model, by being provided with flow distribution plate between panel and bottom plate, by dividing
The density of distributed pores in flowing plate is set or the aperture of stomata is set so that the air-flow on flow distribution plate at air inlet leads to
Area is crossed to be less than away from the air-flow at air inlet by area, by flow distribution plate can uniform each region adsorptive pressure, avoid out
Now it is more than the situation away from the adsorptive pressure at air inlet close to adsorptive pressure at air inlet.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (16)
1. a kind of substrate absorption device, it includes：
Bottom plate, is provided with air inlet on the bottom plate, and the side on the air inlet is connected with negative pressure source；
Panel, the panel are arranged on the opposite side of the air inlet, some through holes are provided with the panel；
It is characterized in that：
Also include airflow uniform distribution device, the airflow uniform distribution device is comprised at least and is arranged between the bottom plate and the panel
Flow distribution plate, the air-flow on the flow distribution plate on the region of the air inlet are less than on the flow distribution plate away from institute by area
The air-flow stated on the region of air inlet passes through area.
2. substrate absorption device according to claim 1, it is characterised in that：It is provided with what aperture was not waited on the flow distribution plate
Stomata, wherein the air vent aperture away from the air inlet is more than the air vent aperture close to the air inlet.
3. substrate absorption device according to claim 2, it is characterised in that：The stomata on the flow distribution plate uniformly divides
Cloth.
4. substrate absorption device according to claim 2, it is characterised in that：The stomata is in centered on the air inlet
It is rectangular-shaped to external diffusion, the aperture of the stomata on same rectangle is equal, equidistantly distributed between each rectangle.
5. substrate absorption device according to claim 2, it is characterised in that：The stomata on the flow distribution plate is with described
It is distributed centered on air inlet in bar spoke shape.
6. substrate absorption device according to claim 5, it is characterised in that：Stomata spacing on each bar spoke straight line with
Air inlet is that starting point is distributed in arithmetic progression, and the air vent aperture on each bar spoke straight line is in Geometric Sequence by starting point of air inlet
Distribution.
7. substrate absorption device according to claim 1, it is characterised in that：It is equal that aperture is provided with the flow distribution plate
Stomata, wherein the stomata gap on the flow distribution plate on the region away from the air inlet is less than close to the region of the air inlet
On stomata gap.
8. according to the substrate absorption device described in claim 1-7 any one, it is characterised in that：The airflow uniform distribution device is also
Insulation airflow uniform distribution unit including being arranged on another side surface of the panel, if being provided with the insulation airflow uniform distribution unit
Dry through hole.
9. substrate absorption device according to claim 8, it is characterised in that：The insulation airflow uniform distribution unit is solid for tiling
Due to the non-woven fabrics of the panel surface.
10. substrate absorption device according to claim 9, it is characterised in that：Set respectively on the bottom plate and the panel
The fixed frame being correspondingly arranged with the flow distribution plate is equipped with, is enclosed between the fixed frame formed with the chamber for installing the flow distribution plate
Room.
11. substrate absorption device according to claim 10, it is characterised in that：It is corresponding with the flow distribution plate in the chamber
The bottom plate on be provided with multiple first positioning convex, first positioning convex supports the flow distribution plate.
12. substrate absorption device according to claim 11, it is characterised in that：It is corresponding with the flow distribution plate in the chamber
The panel on be provided with multiple second positioning convex, second positioning convex fixes the flow distribution plate.
13. substrate absorption device according to claim 12, it is characterised in that：The both ends of the surface of the flow distribution plate are respectively embedded into
In the fixed frame of the bottom plate and the panel, and the flow distribution plate and the fixed frame are sealed by encapsulant.
14. substrate absorption device according to claim 13, it is characterised in that：The edge of the non-woven fabrics passes through sealing material
Material is fixed with the panel sealing.
15. substrate absorption device according to claim 14, it is characterised in that：The air inlet is born by pipeline with described
Potential source is connected, and control valve is provided with the pipeline.
16. substrate absorption device according to claim 15, it is characterised in that：The air inlet be provided with it is multiple, it is multiple
The air inlet is distributed in the different zones of the bottom plate, and each air inlet with the negative pressure source by pipeline with connecting
Connect, control valve is provided with each pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950798.5U CN207058597U (en) | 2017-08-01 | 2017-08-01 | A kind of substrate absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720950798.5U CN207058597U (en) | 2017-08-01 | 2017-08-01 | A kind of substrate absorption device |
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| Publication Number | Publication Date |
|---|---|
| CN207058597U true CN207058597U (en) | 2018-03-02 |
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ID=61517010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720950798.5U Active CN207058597U (en) | 2017-08-01 | 2017-08-01 | A kind of substrate absorption device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283448A (en) * | 2017-08-01 | 2017-10-24 | 南京协辰电子科技有限公司 | A kind of substrate absorption device |
| CN110370395A (en) * | 2019-06-19 | 2019-10-25 | 广州纬纶信息科技有限公司 | A kind of adsorption method cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing applied to Furniture panel |
-
2017
- 2017-08-01 CN CN201720950798.5U patent/CN207058597U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283448A (en) * | 2017-08-01 | 2017-10-24 | 南京协辰电子科技有限公司 | A kind of substrate absorption device |
| CN107283448B (en) * | 2017-08-01 | 2024-02-06 | 南京协辰电子科技有限公司 | Substrate adsorption device |
| CN110370395A (en) * | 2019-06-19 | 2019-10-25 | 广州纬纶信息科技有限公司 | A kind of adsorption method cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing applied to Furniture panel |
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