CN208369953U - A kind of high pressure water knife - Google Patents
A kind of high pressure water knife Download PDFInfo
- Publication number
- CN208369953U CN208369953U CN201820688424.5U CN201820688424U CN208369953U CN 208369953 U CN208369953 U CN 208369953U CN 201820688424 U CN201820688424 U CN 201820688424U CN 208369953 U CN208369953 U CN 208369953U
- Authority
- CN
- China
- Prior art keywords
- outlet channel
- liquid outlet
- liquid
- high pressure
- groove
- 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.)
- Active
Links
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a kind of high pressure water knives, belong to a kind of printed circuit board spray tool, including water outlet plate, the liquid outlet channel of perforation water outlet plate upper and lower surface is equipped in water outlet plate；Liquid outlet channel one end forms liquid feeding end, and for connecting with outer liquid source, the other end forms outlet end, for spraying the highly pressurised liquid to pressurize through liquid outlet channel；Liquid outlet channel cross sectional shape is ellipse.The hole wall and bottom hole of its comprehensive cleaning counterbore of energy enable to remain in the residue in counterbore and sufficiently exchange with cleaning solution progress liquid medicine, improve blind via bottom binding force, improve reliability, meet subsequent technique requirement.
Description
Technical field
The utility model relates to a kind of printed circuit board spray tool more particularly to a kind of high pressure water knives.
Background technique
Currently, in the manufacturing process of printed circuit board (PrintedCircuitBoard, abbreviation PCB), including drilling,
The processes such as Desmear+PTH, press mold, Xian Ying ﹑ Shi Ke ﹑ striping.
Wherein, after drilling operating, printed wiring board substrate drill when can assemble in hole high temperature make hole wall with
And glue residue is remained in bottom hole, glue residue residual more than needed can generate severe quality abnormal to rear processing procedure.Excluding subsequent quality hidden danger needs
Remaining glue residue does removal and roughening treatment, i.e. de-smear (Desmear) in device to hole.Therefore, it is needed in Desmear+PTH process
Pcb board hole and plate body are cleaned, PCB blind hole aperture only has 75um at present, and the water knife in existing cleaning way is adopted mostly
With cellular type water knife.
But there is insufficient pressure of shoving, the water flow outgoing of existing cellular type water knife in existing cellular type water knife
Pressure, which is only capable of reaching 0.5Bar, is even less than 0.5Bar, causes blind via bottom liquid medicine exchange capacity insufficient, so as to cause blind via bottom
The remaining MnO2 of institute can not thoroughly clean removal, and need to achieve the effect that blind via bottom residue thoroughly cleans, water flow outgoing
Pressure needs to reach 1Bar or higher, and the water outflow injection pressure for only reaching 1Bar, which can be only achieved in industry, does quality blind hole
Technique requirement.
Utility model content
For overcome the deficiencies in the prior art, it the purpose of this utility model is to provide a kind of high pressure water knife, can mention
High water knife outflow pressure increases blind via bottom liquid medicine exchange capacity, blind via bottom residue is reduced, so as to improve blind via bottom knot
The problem of resultant force reliability.
One of the purpose of this utility model adopts the following technical scheme that realization:
A kind of high pressure water knife, including water outlet plate, interior be equipped with of the water outlet plate penetrate through going out for the water outlet plate upper and lower surface
Liquid channel；Described liquid outlet channel one end forms liquid feeding end, and for connecting with outer liquid source, the other end forms outlet end, for spraying
The highly pressurised liquid to pressurize out through the liquid outlet channel；The liquid outlet channel cross sectional shape is ellipse.
Further, the water outlet plate is equipped with groove close to a side surface of the outlet end；The groove and it is described go out
The connection of liquid channel.
Further, the groove is less than the groove close to one end aperture of the liquid outlet channel and leads to far from the liquid out
The one end in road.
Further, the aperture of the groove is by one end of the close liquid outlet channel along one far from the liquid outlet channel
End is gradually expanded.
Further, one end cross sectional shape of the groove far from the liquid outlet channel is rectangle.
Further, one end cross sectional shape of the groove far from the liquid outlet channel is rectangle.
Further, the elongated central line of the long side of the groove and short side is crossed to form groove center point；The groove
Central point intersects with the center line of the liquid outlet channel.
Further, the liquid outlet channel is provided with multiple；Multiple liquid outlet channel spacing arrangements and formed it is multiple rows of go out
Liquid channel group.
Further, the liquid outlet channel of any two adjacent liquid outlet channel groups is staggered setting.
Further, the liquid outlet channel group is two rows；Liquid outlet channel group described in every row is each provided with 80 liquid outlet channels.
Compared with prior art, the utility model has the beneficial effects that:
By that will be used to that ovalisation to be arranged to the liquid outlet channel of cleaning PCB counterbore liquid pressing, make liquid from liquid feeding end
Into after liquid outlet channel, the liquid coverage area sprayed through liquid outlet channel pressurization from outlet end is wider, regardless of in water flow pressure etc.
With in the case where or in the case that water flow pressure is bigger, cleaning effect relatively using traditional cellular type water knife cleaning effect more
Good, by increasing liquid coverage area and pressure, the hole wall and bottom hole of the comprehensive cleaning counterbore of energy make to remain in counterbore
MnO2 can sufficiently with cleaning solution carry out liquid medicine exchange, improve blind via bottom binding force, improve reliability, meet subsequent technique
It is required that.
Detailed description of the invention
Fig. 1 is the utility model high pressure water knife overall structure diagram；
Fig. 2 is the portion the A enlarged view of Fig. 1；
Fig. 3 is the utility model high pressure water knife liquid outlet channel schematic cross-sectional view.
In figure: 10, being discharged plate；11, liquid outlet channel；111, liquid feeding end；112, outlet end；12, groove；13, liquid outlet channel
Group.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Figures 1 to 3, in order to reduce pcb board counterbore base residue, counterbore quality is improved, the utility model provides
A kind of high pressure water knife comprising water outlet plate 10, the interior liquid outlet channel 11 for being equipped with perforation water outlet 10 upper and lower surface of plate of water outlet plate 10；
11 one end of liquid outlet channel forms liquid feeding end 111, and for connecting with outer liquid source, the other end forms outlet end 112, for spraying warp
The highly pressurised liquid that liquid outlet channel 11 pressurizes；Liquid main component for cleaning PCB counterbore is sulfuric acid and hydrogen peroxide, and liquid passes through
After outer liquid source is from liquid feeding end 111 into liquid outlet channel 11, pressurizes through liquid outlet channel 11 and spray water outlet plate from outlet end 112
10, after the liquid through being overpressurized enters the counterbore of pcb board, chemically reacted with the remaining MnO2 of institute in counterbore, the reaction is former
Reason are as follows: MnO2+H2O2+H+→MnO+H2O.Specifically, 11 cross sectional shape of liquid outlet channel is ellipse, by 11 section of liquid outlet channel
Shape, which is set as ellipse, can make the liquid coverage area sprayed from liquid outlet channel 11 wider, the positive round relative to traditional cellular type water knife
The liquid that shape water outlet sprays is more flat, and the hole wall and bottom hole allowed in pcb board counterbore can be covered by liquid.
For the area coverage for the liquid that further expansion is sprayed from outlet end 112, improves water and flow out injection pressure, be discharged plate
10 are equipped with groove 12 close to a side surface of outlet end 112；Groove 12 is connected to liquid outlet channel 11, and groove 12 can make from outlet end
112 liquid sprayed are oriented to, relative to directly spraying that its spread is wider, and pressure is more sufficient from water outlet 10 surface of plate, from
Traditional 0.5Bar increases to 1Bar.
Specifically, groove 12 is less than the one end of groove 12 far from liquid outlet channel 11 close to one end aperture of liquid outlet channel 11.
Further, the aperture of groove 12 by close to liquid outlet channel 11 one end along far from liquid outlet channel 11 one end gradually
Expand, groove 12 is gradually expanded from one end close to outlet end 112 towards the other end (i.e. water outlet 10 surface direction of plate), makes from liquid out
The liquid that end 112 sprays can 12 cell wall of the groove guiding through being gradually expanded, make liquid further expansion area coverage, improve counterbore
Internal liquid exchange capacity.
Preferably, one end cross sectional shape of the groove 12 far from liquid outlet channel 11 is rectangle, specially rectangle.
In order to which the liquid sprayed from outlet end 112 can be oriented to by groove 12 and expands its coverage area, groove 12
The elongated central line of long side and short side is crossed to form groove center point；Groove center point intersects with the center line of liquid outlet channel 11,
It is overlapped outlet end 112, liquid outlet channel 11 and 12 center of groove, makes the liquid range of scatter of different direction consistent.
In order to improve cleaning efficiency, liquid outlet channel 11 is provided with multiple；Multiple 11 spacing arrangements of liquid outlet channel are simultaneously formed more
Discharge liquor channel group 13.
In order not to allow adjacent two rows of PCB counterbores to interfere in cleaning, any two adjacent liquid outlet channel groups 13
Liquid outlet channel 11 is staggered setting.
Liquid outlet channel group 13 is two rows；Every discharge liquor channel group 13 is each provided with 80 liquid outlet channels 11.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (10)
1. a kind of high pressure water knife, it is characterised in that:
Including being discharged plate, the liquid outlet channel for penetrating through the water outlet plate upper and lower surface is equipped in the water outlet plate；The liquid outlet channel
One end forms liquid feeding end, and for connecting with outer liquid source, the other end forms outlet end, pressurizes for spraying through the liquid outlet channel
Highly pressurised liquid；The liquid outlet channel cross sectional shape is ellipse.
2. high pressure water knife as described in claim 1, it is characterised in that: side table of the water outlet plate close to the outlet end
Face is equipped with groove；The groove is connected to the liquid outlet channel.
3. high pressure water knife as claimed in claim 2, it is characterised in that: a stomidium of the groove close to the liquid outlet channel
Diameter is less than the one end of the groove far from the liquid outlet channel.
4. high pressure water knife as claimed in claim 3, it is characterised in that: the aperture of the groove is by close to the liquid outlet channel
One end be gradually expanded along far from one end of the liquid outlet channel.
5. the high pressure water knife as described in any one of claim 2~4, it is characterised in that: the groove is far from the liquid out
One end cross sectional shape in channel is rectangle.
6. high pressure water knife as claimed in claim 5, it is characterised in that: the groove is cut far from one end of the liquid outlet channel
Face shape is rectangle.
7. high pressure water knife as claimed in claim 6, it is characterised in that: the long side of the groove and the elongated central line of short side
It is crossed to form groove center point；The groove center point intersects with the center line of the liquid outlet channel.
8. high pressure water knife as described in claim 1, it is characterised in that: the liquid outlet channel is provided with multiple；It is multiple described
Liquid outlet channel spacing arrangement simultaneously forms multiple rows of liquid outlet channel group.
9. high pressure water knife as claimed in claim 8, it is characterised in that: any two adjacent liquid outlet channel groups it is described
Liquid outlet channel is staggered setting.
10. high pressure water knife as claimed in claim 8 or 9, it is characterised in that: the liquid outlet channel group is two rows；Every row institute
It states liquid outlet channel group and is each provided with 80 liquid outlet channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688424.5U CN208369953U (en) | 2018-05-09 | 2018-05-09 | A kind of high pressure water knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688424.5U CN208369953U (en) | 2018-05-09 | 2018-05-09 | A kind of high pressure water knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369953U true CN208369953U (en) | 2019-01-11 |
Family
ID=64933979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820688424.5U Active CN208369953U (en) | 2018-05-09 | 2018-05-09 | A kind of high pressure water knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449497A (en) * | 2019-08-28 | 2021-03-05 | 深南电路股份有限公司 | Method for processing carbide of printed circuit board and water jet device |
-
2018
- 2018-05-09 CN CN201820688424.5U patent/CN208369953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449497A (en) * | 2019-08-28 | 2021-03-05 | 深南电路股份有限公司 | Method for processing carbide of printed circuit board and water jet device |
| CN112449497B (en) * | 2019-08-28 | 2022-04-12 | 深南电路股份有限公司 | Method for processing carbide of printed circuit board and water jet device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208369953U (en) | A kind of high pressure water knife | |
| CN102548066A (en) | PCB (Printed Circuit Board) surface treatment technology | |
| CN1944717B (en) | Negative pressure electroplating method for PCB | |
| CN101795535A (en) | Plughole machine for optional ink plughole and easy grinding | |
| CN203342641U (en) | Integrated acid/alkali waste gas automatic purification process device | |
| CN105797879B (en) | A kind of nozzle for printed circuit board cleaning machine | |
| CN207891428U (en) | A kind of two fluid etching mechanism of wiring board | |
| CN207625887U (en) | A kind of general aeroscopic plate of pcb board welding resistance consent | |
| CN218804760U (en) | Be used for laser printing silver thick liquid spraying device | |
| CN215088095U (en) | Universal adjustable nozzle and PCBA board belt cleaning device who has this nozzle | |
| CN216775144U (en) | Be applied to jet flow box that PCB water flat line jet flow was handled | |
| CN204859772U (en) | Face belt cleaning device based on circuit board conductive film is executed and is plated device | |
| CN212696277U (en) | Water jet cutter | |
| CN216542781U (en) | Corrosive liquid spraying device of chip burr etching machine | |
| CN213995396U (en) | Waste gas neutralization washing defogging device | |
| CN209735319U (en) | double-tower desulfurization device | |
| KR20100122736A (en) | Method of fabricating of flexible circuit board for inkjet cartridge, flexible circuit board for inkjet cartridge of thereby and method for fabricating of inkjet cartridge | |
| CN201115039Y (en) | Opposite open kettle mouth of tin overflow mouth | |
| CN107497760B (en) | Electronic PCB board hydrojet head | |
| CN101102644A (en) | Vertical etching copper line method for internal layer of printed circuit board | |
| CN101765321A (en) | Fixed kettle mouth | |
| CN201312432Y (en) | Fixed kettle opening of kettle spout | |
| CN201312415Y (en) | Single-side straddle type part avoiding-type kettle opening | |
| KR20220113657A (en) | System for cleaning of assistance solvent | |
| KR101780664B1 (en) | Method For Plating Holes And Apparatus For Plating Plate Having Holes Using That Method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |