CN207254784U - A kind of circuit board high-effective dust-removing equipment - Google Patents
A kind of circuit board high-effective dust-removing equipment Download PDFInfo
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- CN207254784U CN207254784U CN201721060399.8U CN201721060399U CN207254784U CN 207254784 U CN207254784 U CN 207254784U CN 201721060399 U CN201721060399 U CN 201721060399U CN 207254784 U CN207254784 U CN 207254784U
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- support plate
- spring
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Abstract
A kind of circuit board high-effective dust-removing equipment, including bottom plate, the support plate device above the bottom plate, the filtration apparatus being arranged above the support plate device, the air extractor being arranged on the filtration apparatus, the holder device being arranged on the support plate device, the clearing apparatus being arranged on the holder device, the electric cylinders device below the holder device.The utility model automatically can clean circuit board, the dust on circuit board effectively be disposed, dust removing effects are notable, and easy to operate, easy-to-use, high dust collection efficiency, the dust cleaned out can be filtered at the same time, prevent from polluting environment.
Description
Technical field
Circuit board processing technique field is the utility model is related to, more particularly, to a kind of circuit board high-effective dust-removing equipment.
Background technology
Circuit board can accumulate substantial amounts of dust after prolonged placement and use on its surface, and dust can influence electricity
Road plate uses.For the existing mode to dedusting circuit board mainly by hand sweeping, labor intensity is big, cumbersome, time-consuming and laborious,
It can not meet the needs of circuit board large-scale production, and the dust cleaned out diffuses the quality in atmosphere, influencing air.
Therefore, it is necessary to a kind of new technical solution is provided to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of circuit board high-effective dust-removing that can effectively solve above-mentioned technical problem
Equipment.
To reach the purpose of the utility model, adopt the following technical scheme that：
A kind of circuit board high-effective dust-removing equipment, including bottom plate, the support plate device above the bottom plate, be arranged at
Filtration apparatus above the support plate device, the air extractor being arranged on the filtration apparatus, be arranged at the support plate
Holder device on device, the clearing apparatus being arranged on the holder device, the electric cylinders dress below the holder device
Put, the bottom plate is equipped with the supporting rod being positioned above, and the support plate device includes support plate, is arranged at the support plate
On smooth piece, the first spring below the support plate, the filtration apparatus include framework, be contained in the framework
Filter screen, the second spring above the filter screen, the blocking plate above the second spring, positioned at described stifled
Gripping frame above seben, the air extractor include exhaust tube, the wind turbine being arranged on the exhaust tube, valve, the branch
Rack device includes locating rod, limits bar, the elevating lever below the locating rod, the 3rd bullet above the locating rod
Spring, the first cross bar below the elevating lever, the clearing apparatus include the first electric cylinders, on the right side of first electric cylinders
The first catch bar, the first fixed link on the right side of first catch bar, the movement below first fixed link
Block, the bristle below the movable block, the electric cylinders device include contiguous block, are arranged at abutting against in the connecting rod
Bar, be arranged at and described abut against the fixed block of bar upper end, the swingle being arranged on the fixed block, be arranged on the swingle
The 4th spring, be arranged at the swingle lower end roller, the mobile bar on the right side of the swingle, positioned at the movement
Push plate on the right side of bar, the second catch bar on the right side of the push plate, the second electric cylinders on the right side of second catch bar.
The supporting rod is in vertical shape, and the lower end of the supporting rod is fixedly connected with the bottom plate.
The upper end of the supporting rod is fixedly connected with the support plate, and the support plate is equipped with through its upper and lower surface
First through hole, described smooth piece is contained in the first through hole and is fixedly connected with the support plate, first spring
Upper end is fixedly connected with the support plate.
The framework is in hollow cuboid, and the framework is fixedly connected with the support plate, and the framework is equipped with position
The second through hole in its left surface and the third through-hole positioned at its right surface, the filter screen are in the shape of the letter V, and the filter screen houses
In being located at the lower section of second through hole in the framework and with the inner surface sliding contact of the framework, the filter screen, and
Block the third through-hole, the lower end of the second spring is fixedly connected with the filter screen, the upper end of the second spring with
The blocking plate is fixedly connected, and the side of the blocking plate is acted against on the inner surface of the framework, and the gripping frame is in T words
Shape, the lower end for gripping frame are fixedly connected with the blocking plate.
The left end of the exhaust tube is directed at the third through-hole and is fixedly connected with the right surface of the framework.
The locating rod is horizontal positioned, and the lower end for limiting bar is fixedly connected with the right end of the locating rod, the liter
It is in vertical shape to drop bar, and the upper end of the elevating lever is fixedly connected with the locating rod, the lower end of the elevating lever and described first
Cross bar is fixedly connected, the elevating lever through described smooth piece upper and lower surface and with its sliding contact, the 3rd spring
Lower end is fixedly connected with the support plate, and the upper end of the 3rd spring is fixedly connected with the locating rod, first spring
Lower end be fixedly connected with first cross bar.
First electric cylinders are fixedly connected with the locating rod, and the left end of first catch bar connects with first electric cylinders
Connect, the right end of first catch bar is fixedly connected with first fixed link, lower end and the shifting of first fixed link
Motion block is fixedly connected, the locating rod through the movable block left and right surface and with its sliding contact, if the bristle be equipped with
Dry, the upper end of the bristle is fixedly connected with the movable block.
The contiguous block is fixedly connected with the bottom plate, and the lower end for abutting against bar is equipped with the first groove, the contiguous block
It is contained in first groove and is pivotally connected with the bar that abuts against, the upper end for abutting against bar acts against first cross bar
Above and with its sliding contact, the fixed block it is fixedly connected with the upper end for abutting against bar, the swingle, which is equipped with, is located at it
Second groove of upper end and the 3rd groove positioned at its lower end, the fixed block be contained in second groove and with the rotation
Bull stick is pivotally connected.
The right end of 4th spring is fixedly connected with the swingle, and the left end of the 4th spring abuts against bar with described
It is fixedly connected, the roller is contained in the 3rd groove and is pivotally connected with the swingle, and the roller acts against institute
State on bottom plate, second electric cylinders are fixedly connected with the bottom plate, and the right end of second catch bar connects with second electric cylinders
Connect, the left end of second catch bar is fixedly connected with the push plate, and second catch bar runs through the left and right of the supporting rod
Surface and with its sliding contact.
The lower end of the push plate acts against on the bottom plate and is pushed away with its sliding contact, the right end of the mobile bar with described
Plate is fixedly connected, the left end of the mobile bar act against on the swingle and with its sliding contact.
Compared with prior art, the utility model has the advantages that：The utility model circuit board high-effective dust-removing
Equipment automatically can clean circuit board, and the dust on circuit board is effectively disposed, and dust removing effects are notable, and
It is easy to operate, easy-to-use, high dust collection efficiency, while the dust cleaned out can be filtered, prevent from causing dirt to environment
Dye.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model circuit board high-effective dust-removing equipment.
Embodiment
Clearly complete explanation is made with high-effective dust-removing equipment to the utility model circuit board below in conjunction with attached drawing.
As shown in Figure 1, the utility model circuit board high-effective dust-removing equipment includes bottom plate 1, above the bottom plate 1
Support plate device 2, the filtration apparatus 3 for being arranged at the top of support plate device 2, the pumping being arranged on the filtration apparatus 3
Device 4, the holder device 5 being arranged on the support plate device 2, the clearing apparatus 6 being arranged on the holder device 5, position
Electric cylinders device 7 in the lower section of holder device 5.
As shown in Figure 1, the bottom plate 1 is in cuboid, the bottom plate 1 is equipped with the supporting rod 11 being positioned above.It is described
Supporting rod 11 is in vertical shape, and the lower end of the supporting rod 11 is fixedly connected with the bottom plate 1.
As shown in Figure 1, the support plate device 2 include support plate 21, be arranged in the support plate 21 smooth piece 22,
The first spring 23 positioned at the lower section of support plate 21.The support plate 21 is in cuboid, the upper end of the supporting rod 11 and institute
State support plate 21 to be fixedly connected, the support plate 21 is equipped with the first through hole 211 through its upper and lower surface, the first through hole
211 are square.Described smooth piece 22 is contained in the first through hole 211 and is fixedly connected with the support plate 21.Described
One spring 23 is equipped with several, and the upper end of first spring 23 is fixedly connected with the support plate 21.
As shown in Figure 1, the filtration apparatus 3 includes framework 31, the filter screen 32 being contained in the framework 31, positioned at institute
State the second spring 33 above filter screen 32, the blocking plate 34 above the second spring 33, positioned at the blocking plate 34
The gripping frame 35 of top.The framework 31 is in hollow cuboid, and the upper end of the framework 31 causes the framework equipped with opening
31 longitudinal section is in concave shape, and the framework 31 is fixedly connected with the support plate 21, and the framework 31 is equipped with left positioned at it
Second through hole 311 on surface and the third through-hole positioned at its right surface, second through hole 311 and third through-hole it is rounded and with
The inside of the framework 31 communicates, and second through hole 311 is equipped with several.The filter screen 32 is in the shape of the letter V, the filter screen
32 are contained in the framework 31 and lead to the inner surface sliding contact of the framework 31, the filter screen 32 positioned at described second
The lower section in hole 311, and block the third through-hole.The second spring 33 is equipped with several, the lower end of the second spring 33
It is fixedly connected with the filter screen 32, the upper end of the second spring 33 is fixedly connected with the blocking plate 34.The blocking plate
34 be in cuboid, and the side of the blocking plate 34 is acted against on the inner surface of the framework 31, and the blocking plate 34 uses rubber
Material is made so that the blocking plate 34 can block the upper end of the framework 31.The gripping frame 35 is in T shape, described to hold
The lower end for holding frame 35 is fixedly connected with the blocking plate 34, convenient for users to holding.
As shown in Figure 1, the air extractor 4 includes exhaust tube 41, the wind turbine 42 being arranged on the exhaust tube 41, valve
43.The left end of the exhaust tube 41 is directed at the third through-hole and is fixedly connected with the right surface of the framework 31 so that described
The inside of exhaust tube 41 is communicated with the inside of the framework 31.The wind turbine 42 and power supply electric connection (not shown), carry for it
For electric energy, the wind turbine 42 is equipped with switch (not shown), conveniently controls it to open or close.The valve 43 is used to control
The flow of gas in the exhaust tube 41.
As shown in Figure 1, the holder device 5 includes locating rod 51, the restriction bar 52 above the locating rod 51, position
In the elevating lever 53 of the lower section of locating rod 51, the 3rd spring 54, the first cross bar 55 positioned at the lower section of elevating lever 53.It is described
Locating rod 51 is horizontal positioned.The restriction bar 52 is in vertical shape, the right end of the lower end and the locating rod 51 for limiting bar 52
It is fixedly connected.The elevating lever 53 is in vertical shape, and the upper end of the elevating lever 53 is fixedly connected with the locating rod 51, the liter
Drop bar 53 lower end be fixedly connected with first cross bar 55, the elevating lever 53 run through described smooth piece 22 upper and lower surface and
With its sliding contact so that the elevating lever 53 can be moved up and down smoothly.The lower end of 3rd spring 54 and the branch
Fagging 21 is fixedly connected, and the upper end of the 3rd spring 54 is fixedly connected with the locating rod 51.First cross bar 55 is in length
Cube and horizontal positioned, the lower end of first spring 23 is fixedly connected with first cross bar 55.
As shown in Figure 1, the clearing apparatus 6 includes the first electric cylinders 61, is pushed away positioned at the first of the right side of the first electric cylinders 61
Lever 62, the first fixed link 63 positioned at the right side of the first catch bar 62, the movement positioned at the lower section of the first fixed link 63
Block 64, the bristle 65 positioned at the lower section of movable block 64.First electric cylinders 61 and power supply electric connection (not shown), carry for it
For electric energy, first electric cylinders 61 are equipped with switch (not shown), conveniently control it to open or close, first electric cylinders 61
It is fixedly connected with the locating rod 51.The left end of first catch bar 62 is connected with first electric cylinders 61 so that described
One electric cylinders 61 can drive first catch bar 62 to move left and right, and the right end of first catch bar 62 is fixed with described first
Bar 63 is fixedly connected.First fixed link 63 is in cuboid, and the lower end of first fixed link 63 is solid with the movable block 64
Fixed connection.The movable block 64 is in cuboid, and the locating rod 51 is slided through the left and right surface of the movable block 64 and with it
Contact so that the movable block 64 can move left and right in the locating rod 51.The bristle 65 is equipped with several, the brush
The upper end of hair 65 is fixedly connected with the movable block 64, and the lower end of the bristle 65 abuts against on circuit boards.
As shown in Figure 1, the electric cylinders device 7 includes contiguous block 71, is arranged at abutting against bar 72, setting in the connecting rod 71
Abut against the fixed block 73 of 72 upper end of bar, the swingle 74 being arranged on the fixed block 73 described in being placed in, be arranged at the rotation
The 4th spring 75 on bar 74, the roller for being arranged at 74 lower end of swingle, the mobile bar positioned at the right side of swingle 74
76th, positioned at the push plate 77 on the right side of mobile bar 76, the second catch bar 78 on the right side of the push plate 77, positioned at described second
Second electric cylinders 79 on the right side of catch bar 78.The contiguous block 71 is fixedly connected with the bottom plate 1.The bar 72 that abuts against is in rectangular
Body, the lower end for abutting against bar 72 are equipped with the first groove, the contiguous block 71 be contained in first groove and with the top
Lean rod 72 is pivotally connected so that the bar 72 that abuts against can be rotated around the contiguous block 71, the upper end top for abutting against bar 72
Lean against on first cross bar 55 and with its sliding contact, so as to play a supporting role to first cross bar 55.The fixation
Block 73 is fixedly connected with the upper end for abutting against bar 72.The swingle 74 is in cuboid, and the swingle 74, which is equipped with, to be located at
Second groove of the upper end and the 3rd groove positioned at its lower end, the fixed block 73 be contained in second groove and with institute
State swingle 74 to be pivotally connected so that the swingle 74 can be rotated around the fixed block 73.4th spring 75
Right end is fixedly connected with the swingle 74, and the left end of the 4th spring 75 is fixedly connected with the bar 72 that abuts against.The rolling
Wheel is contained in the 3rd groove and is pivotally connected with the swingle 74 so that the roller can be in the 3rd groove
Interior rotation, the roller are acted against on the bottom plate 1, and can be rolled on the bottom plate 1.Second electric cylinders 79 and power supply
It is (not shown) to be electrically connected, electric energy is provided for it, second electric cylinders 79 are equipped with switch (not shown), conveniently control its opening
Or close, second electric cylinders 79 are fixedly connected with the bottom plate 1.Second catch bar 78 is horizontal, and described second
The right end of catch bar 78 is connected with second electric cylinders 79 so that second electric cylinders 79 can drive second catch bar 78
Move left and right, the left end of second catch bar 78 is fixedly connected with the push plate 77, and second catch bar 78 is through described
The left and right surface of supporting rod 11 and with its sliding contact so that second catch bar 78 can be moved left and right smoothly.It is described
Push plate 77 in cuboid and it is vertical place, the lower end of the push plate 77 act against on the bottom plate 1 and with its sliding contact so that
The push plate 77 can be moved left and right smoothly.The mobile bar 76 is in cuboid and horizontal positioned, the right side of the mobile bar 76
End is fixedly connected with the push plate 77, the left end of the mobile bar 76 act against on the swingle 74 and with its sliding contact,
So as to play a role in promoting to the swingle 74.
As shown in Figure 1, the utility model circuit board high-effective dust-removing equipment is in use, be first turned on the second electric cylinders 79
Switch so that second catch bar 78 is moved to the left, and the push plate 77 is moved to the left, and the mobile bar 76 is therewith to moving to left
Dynamic, the mobile bar 76 promotes the swingle 74 to be moved to the left, and with the bar 72 that abuts against opposite revolve occurs for the swingle 74
Turn, the upper end for abutting against bar 72 is begun to move up so that first cross bar 55, elevating lever 53 and locating rod 51 to
Upper movement, the clearing apparatus 6 move up therewith.Then circuit board is placed in the support plate 21, and positioned at described
The lower section of locating rod 51.Then so that second catch bar 78 moves right, the push plate 77 moves right the second electric cylinders 79,
First cross bar 55, elevating lever 53 and locating rod 51 move down, and the clearing apparatus 6 moves down therewith, until described
The lower end of bristle 65 and circuit board contacts.Then valve 43 is opened, while opens the switch of wind turbine 42 so that extraneous air is not
Disconnected the second through hole of process 311 is entered in framework 31, then passes through third through-hole again after the filtering of the filter screen 32
Enter in exhaust tube 41, finally discharge, open the switch of the first electric cylinders 61 at this time so that first catch bar 62 is continuous
Move left and right, so that first fixed link 63 constantly moves left and right, the movable block 64 is in the locating rod 51
Constantly move left and right, the movable block 64 drives the bristle 65 constantly to move left and right, so as to by circuit board
Dust is cleaned out, and the dust then cleaned up is drawn into the framework 31, from pumping after the filtering of filter screen 32
Pipe 41 is discharged, and the dust in air is concentrated on the filter screen 32.After treating dedusting, the first electric cylinders 61 and are closed at this time
Two electric cylinders 79, simultaneously close off the switch of wind turbine 42, then hold and grip frame 35 and move up, so as to by blocking plate 34, the
Two springs 33 and filter screen 32 take out, and then filter screen 32 is cleaned.The utility model can adjust locating rod 51
Height, and then the circuit board of different-thickness can be cleaned, and clean it is comprehensive thoroughly, while will can clean out
Dust take filtering away, prevent pollution environment.So far, the utility model circuit board is complete using process description with high-effective dust-removing equipment
Finish.
Claims (10)
1. a kind of circuit board high-effective dust-removing equipment, including bottom plate, the support plate device above the bottom plate, it is arranged at institute
State the filtration apparatus above support plate device, the air extractor being arranged on the filtration apparatus, be arranged at the support plate dress
The holder device put, the clearing apparatus, the electric cylinders device below the holder device that are arranged on the holder device,
It is characterized in that：The bottom plate is equipped with the supporting rod being positioned above, and the support plate device includes support plate, is arranged at institute
Smooth piece in support plate, the first spring below the support plate are stated, the filtration apparatus includes framework, is contained in institute
State the filter screen in framework, the second spring above the filter screen, the blocking plate above the second spring, position
Gripping frame above the blocking plate, the air extractor include exhaust tube, the wind turbine being arranged on the exhaust tube, valve
Door, the holder device include locating rod, limit bar, the lifting below the locating rod above the locating rod
Bar, the 3rd spring, the first cross bar below the elevating lever, the clearing apparatus include the first electric cylinders, positioned at described the
The first catch bar on the right side of one electric cylinders, the first fixed link on the right side of first catch bar, positioned at first fixed link
The movable block of lower section, the bristle below the movable block, the electric cylinders device include contiguous block, are arranged at the connecting rod
On abut against bar, be arranged at it is described abut against the fixed block of bar upper end, the swingle being arranged on the fixed block, be arranged at it is described
The 4th spring on swingle, the roller for being arranged at the swingle lower end, the mobile bar on the right side of the swingle, be located at
Push plate on the right side of the mobile bar, the second catch bar on the right side of the push plate, on the right side of second catch bar
Two electric cylinders.
2. circuit board as claimed in claim 1 high-effective dust-removing equipment, it is characterised in that：The supporting rod is in vertical shape, institute
The lower end for stating supporting rod is fixedly connected with the bottom plate.
3. circuit board as claimed in claim 2 high-effective dust-removing equipment, it is characterised in that：The upper end of the supporting rod with it is described
Support plate is fixedly connected, and the support plate is equipped with the first through hole through its upper and lower surface, described smooth piece be contained in it is described
It is fixedly connected in first through hole and with the support plate, the upper end of first spring is fixedly connected with the support plate.
4. circuit board as claimed in claim 3 high-effective dust-removing equipment, it is characterised in that：The framework is in hollow rectangular
Body, the framework are fixedly connected with the support plate, and the framework is equipped with positioned at the second through hole of its left surface and positioned at it
The third through-hole on right surface, the filter screen are in the shape of the letter V, the filter screen be contained in the framework and with the framework
Slidably contact the surfaces, the filter screen is located at the lower section of second through hole, and blocks the third through-hole, the second spring
Lower end be fixedly connected with the filter screen, the upper end of the second spring is fixedly connected with the blocking plate, the blocking plate
Side act against on the inner surface of the framework, the gripping frame is in T shape, lower end and the blocking plate for gripping frame
It is fixedly connected.
5. circuit board as claimed in claim 4 high-effective dust-removing equipment, it is characterised in that：The left end alignment institute of the exhaust tube
State third through-hole and be fixedly connected with the right surface of the framework.
6. circuit board as claimed in claim 5 high-effective dust-removing equipment, it is characterised in that：The locating rod is horizontal positioned, institute
State and limit the lower end of bar and be fixedly connected with the right end of the locating rod, the elevating lever is in vertical shape, the upper end of the elevating lever
It is fixedly connected with the locating rod, the lower end of the elevating lever is fixedly connected with first cross bar, and the elevating lever runs through institute
State smooth piece of upper and lower surface and with its sliding contact, the lower end of the 3rd spring is fixedly connected with the support plate, described
The upper end of 3rd spring is fixedly connected with the locating rod, and the lower end of first spring is fixedly connected with first cross bar.
7. circuit board as claimed in claim 6 high-effective dust-removing equipment, it is characterised in that：First electric cylinders and the positioning
Bar is fixedly connected, and the left end of first catch bar is connected with first electric cylinders, the right end of first catch bar with it is described
First fixed link is fixedly connected, and the lower end of first fixed link is fixedly connected with the movable block, and the locating rod runs through institute
State the left and right surface of movable block and be equipped with several with its sliding contact, the bristle, the upper end of the bristle and the movement
Block is fixedly connected.
8. circuit board as claimed in claim 7 high-effective dust-removing equipment, it is characterised in that：The contiguous block is consolidated with the bottom plate
Fixed connection, the lower end for abutting against bar are equipped with the first groove, the contiguous block be contained in first groove it is interior and with the top
Lean rod is pivotally connected, the upper end for abutting against bar act against on first cross bar and with its sliding contact, the fixed block with
The upper end for abutting against bar is fixedly connected, the swingle be equipped with the second groove at its upper end and positioned at its lower end the
Three grooves, the fixed block are contained in second groove and are pivotally connected with the swingle.
9. circuit board as claimed in claim 8 high-effective dust-removing equipment, it is characterised in that：The right end of 4th spring and institute
State swingle to be fixedly connected, the left end of the 4th spring is fixedly connected with the bar that abuts against, and the roller is contained in described
It is pivotally connected in three grooves and with the swingle, the roller is acted against on the bottom plate, second electric cylinders and the bottom
Plate is fixedly connected, and the right end of second catch bar is connected with second electric cylinders, the left end of second catch bar with it is described
Push plate is fixedly connected, second catch bar through the supporting rod left and right surface and with its sliding contact.
10. circuit board as claimed in claim 9 high-effective dust-removing equipment, it is characterised in that：The lower end of the push plate acts against
It is fixedly connected on the bottom plate and with its sliding contact, the right end of the mobile bar with the push plate, the left end of the mobile bar
Act against on the swingle and with its sliding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721060399.8U CN207254784U (en) | 2017-08-23 | 2017-08-23 | A kind of circuit board high-effective dust-removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721060399.8U CN207254784U (en) | 2017-08-23 | 2017-08-23 | A kind of circuit board high-effective dust-removing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207254784U true CN207254784U (en) | 2018-04-20 |
Family
ID=61922178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721060399.8U Active CN207254784U (en) | 2017-08-23 | 2017-08-23 | A kind of circuit board high-effective dust-removing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207254784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967614A (en) * | 2021-06-29 | 2022-01-25 | 李少云 | Cleaning device is used in PCB board production |
-
2017
- 2017-08-23 CN CN201721060399.8U patent/CN207254784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967614A (en) * | 2021-06-29 | 2022-01-25 | 李少云 | Cleaning device is used in PCB board production |
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