CN111112192A - Device for cleaning two sides of PCB - Google Patents
Device for cleaning two sides of PCB Download PDFInfo
- Publication number
- CN111112192A CN111112192A CN202010004948.XA CN202010004948A CN111112192A CN 111112192 A CN111112192 A CN 111112192A CN 202010004948 A CN202010004948 A CN 202010004948A CN 111112192 A CN111112192 A CN 111112192A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- fixedly connected
- pcb
- cover
- discharging
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000003749 cleanliness Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B08B1/12—
-
- B08B1/20—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
Abstract
The invention discloses a device for cleaning double surfaces of a PCB, which relates to the technical field of PCB cleaning and comprises a cleaning box, wherein the output end of a water pump is fixedly connected with a main water inlet pipe, two sides of the main water inlet pipe are fixedly connected with branch water inlet pipes, a branch water conveying pipe is fixedly connected with a water inlet outer cover, a bearing plate penetrates through the cleaning box, a conveying device is arranged on the bearing plate, cleaning mechanisms are arranged above and inside the conveying device, the bottom end of the conveying device is fixedly connected with a discharging device, and a drying device is arranged on the discharging device. Therefore, the whole cleaning process of the PCB is completed, the cleaning procedure is complete, the cleaned PCB is high in cleanliness and good in cleaning effect.
Description
Technical Field
The invention relates to the technical field of PCB cleaning, in particular to a device for cleaning double surfaces of a PCB.
Background
In the production process of PCB board, make the PCB board be stained with dirt such as dust, deckle edge easily, influence the cleanliness on PCB surface, what prior art provided carries out clear device to the PCB board, only can clean the one side of PCB board, because in process of production, the PCB board both sides all can be stained with dirt such as dust, deckle edge, can not satisfy in the actual production and carry out simple, quick two sides clear requirement to the PCB board, influenced the qualification rate and the production efficiency of PCB board.
In the chinese utility model patent document with publication number CN208743113U, a device for double-sided cleaning of PCB is disclosed, which comprises a first brush board, a second brush board, a clamping device, a PCB board, a sliding groove, a telescopic rod, a spring, a protruding rod, a driving motor and a cam, wherein the telescopic rod is adjusted to a proper position, the PCB board to be cleaned is clamped by the clamping device on the telescopic rod and the protruding rod, the driving motor is started to drive the cam to rotate, the cam drives the protruding rod and the telescopic rod, the telescopic rod is under the tension of the spring in the sliding groove, so that the PCB board reciprocates left and right, the PCB board is double-sided cleaned by the brush hair on the first brush board and the second brush board, so that the cleaning efficiency of the PCB board is higher, thereby the qualification rate and the production efficiency of the PCB board are improved by arranging the first brush board, the second brush board, the slider, the sliding groove, the fixed rod, the threaded rod and the electric push rod, the threaded rod connected with the fixed rod in a threaded mode is rotated, the threaded rod is connected with the first brush plate in a rotating mode, the first brush plate drives the sliding block to lift along the sliding groove, the electric push rod is started, the second brush plate drives the sliding block to lift along the sliding groove, and therefore the distance between the first brush plate and the second brush plate can be freely adjusted as required. The device needs to make the PC board move along a longer path and form, can finish the cleaning of the PCB board, is long in time consumption, can only clean one PCB board at a time, and is low in cleaning speed and low in efficiency.
Disclosure of Invention
The present invention is directed to a device for double-sided cleaning of a PCB, so as to solve the above problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a device for being directed at PCB board carries out two-sided cleanness, includes the clean case, and the bottom four corners of clean case is all fixed and is equipped with the supporting leg, the top central authorities fixed connection water pump of clean case, one side of water pump are equipped with the water tank, the input and the water tank fixed connection of water pump, and the output fixed connection of water pump is intake and is responsible for, and the both sides fixed connection who is responsible for of intaking is intake the branch pipe, carries intake branch pipe fixed connection and intakes the dustcoat, run through being equipped with the loading board in the clean case, be equipped with conveyor on the loading board, conveyor's top and inside are equipped with clean mechanism, conveyor's bottom fixed connection discharging device.
As a further scheme of the invention: the conveying device is characterized in that a conveying groove is formed in the top of the bearing plate, transmission belts are arranged on the bearing plate on two sides of the conveying groove, a pressing device is fixedly arranged on the outer side of each transmission belt, a discharging channel is formed in the middle of the conveying groove in the bearing plate, cleaning cavities are formed in the bearing plate on two sides of the discharging channel, and the bottom end of the bearing plate is fixedly connected with a second driving motor.
As a further scheme of the invention: the cleaning mechanism comprises a fixed inner cover arranged above the bearing plate, the inner portion of the fixed inner cover and the inner portion of the cleaning cavity are rotatably connected with the brush roller, the top end of the fixed inner cover is fixedly connected with a first driving motor, and an output shaft of the first driving motor is in transmission connection with the brush roller.
As a further scheme of the invention: the water inlet outer cover is connected with an inner water pipe, and the inner water pipe extends into the fixed inner cover and is fixedly connected with the spray head.
As a further scheme of the invention: the pressing device comprises a side fixing block, the side fixing block is fixedly connected with the outer portion of the transmission belt, an inner cavity is formed in the bottom end of the side fixing block, a spring is fixedly connected to the top end of the inner cavity, and a pressing block is fixedly connected to the bottom end of the spring.
As a further scheme of the invention: the discharging device comprises a discharging cover, and two discharging conveying belts are arranged in the discharging cover.
As a further scheme of the invention: the blanking conveyer belt is a steel wire steel belt, and guide plates are fixedly connected to the inner walls of the two sides of the blanking cover above the blanking conveyer belt.
As a further scheme of the invention: the drying device comprises a hot air cover sleeved outside the blanking cover, one end of the hot air cover is fixedly connected with the hot air fan, and the blanking cover is provided with an air inlet communicated with the hot air cover.
As a further scheme of the invention: the discharging device is provided with a discharging conveyer belt below, the supporting legs are fixedly provided with a fixed support for fixing the discharging conveyer belt, and the fixed support is provided with a conveying motor.
As a further scheme of the invention: the bottom of the cleaning box is fixedly connected with a water outlet pipe, and the bottom surface of the cleaning box is provided with a water leakage hole communicated with the water outlet pipe.
Compared with the prior art, the invention has the beneficial effects that: according to the PCB cleaning machine, the conveying device, the pressing device and the discharging device are arranged, so that automatic conveying, moving and discharging of the PCB can be achieved, the moving PCB can be cleaned in a brushing mode and a washing mode through the cleaning mechanism, the PCB in the discharging process can be dried through the drying device, the whole cleaning process of the PCB is completed, the cleaning program is complete, the cleaned PCB is high in cleanliness and good in cleaning effect.
Drawings
Fig. 1 is a schematic structural diagram of a device for double-sided cleaning of a PCB board.
Fig. 2 is a schematic structural diagram of a cleaning mechanism in the device for double-sided cleaning of the PCB board.
Fig. 3 is a schematic structural diagram of a conveying device in the device for double-sided cleaning of the PCB board.
Fig. 4 is a schematic structural view of a pressing device in an apparatus for double-sided cleaning of a PCB panel.
FIG. 5 is a schematic structural diagram of a discharging device in the device for double-sided cleaning of PCB boards.
In the figure: 1-cleaning box, 2-supporting leg, 3-conveying device, 4-water tank, 5-water pump, 6-water inlet pipe, 7-water outlet pipe, 8-water inlet outer cover, 9-water outlet pipe, 10-discharging device, 11-hot air cover, 12-hot air machine, 13-discharging conveying belt, 14-conveying motor, 15-fixed inner cover, 16-first driving motor, 17-brush roller, 18-second driving motor, 19-driving belt, 20-pressing device, 21-cleaning cavity, 22-discharging channel, 23-side fixed block, 24-inner cavity, 25-spring, 26-pressing block, 27-conveying trough, 28-discharging cover, 29-discharging conveying belt and 30-guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-5, a device for double-side cleaning of a PCB comprises a cleaning box 1, wherein supporting legs 2 are fixedly arranged at four corners of the bottom of the cleaning box 1, a water pump 5 is fixedly connected to the center of the top of the cleaning box 1, a water tank 4 is arranged at one side of the water pump 5, an input end of the water pump 5 is fixedly connected to the water tank 4, an output end of the water pump 5 is fixedly connected to a water inlet main pipe 6, two sides of the water inlet main pipe 6 are fixedly connected to water inlet branch pipes 7, the water inlet branch pipes 7 are fixedly connected to a water inlet outer cover 8, a bearing plate penetrates through the cleaning box 1, a conveying device 3 is arranged on the bearing plate, cleaning mechanisms are arranged above and inside the conveying device 3, a discharging device 10 is fixedly connected to the bottom of the conveying.
The top of loading board has seted up defeated material groove 27, all is equipped with drive belt 19 on the loading board of defeated material groove 27 both sides, and the fixed closing device 20 that is equipped with in the outside of conveyer belt, the unloading passageway 22 has been seted up to the middle part that lies in defeated material groove 27 on the loading board, has seted up clean chamber 21 on the loading board of unloading passageway 22 both sides, the bottom fixed connection second driving motor 18 of loading board.
The cleaning mechanism comprises a fixed inner cover 15 arranged above the bearing plate, the inner portion of the fixed inner cover 15 and the inner portion of the cleaning cavity 21 are connected with a brush roller 17 in a rotating mode, the top end of the fixed inner cover 15 is fixedly connected with a first driving motor 16, and an output shaft of the first driving motor 16 is in transmission connection with the brush roller 17. The water inlet outer cover 8 is connected with an inner water pipe, and the inner water pipe extends into the fixed inner cover 15 and is fixedly connected with the spray head.
The pressing device 20 comprises a side fixing block 23, the side fixing block 23 is fixedly connected with the outside of the transmission belt 19, an inner cavity 24 is formed in the bottom end of the side fixing block 23, a spring 25 is fixedly connected to the top end of the inner cavity 24, and a pressing block 26 is fixedly connected to the bottom end of the spring 25.
The discharging device 10 comprises a discharging cover 28, and two discharging conveyer belts 29 are arranged in the discharging cover 28. The blanking conveyer belt 29 is a steel wire steel belt, and guide plates 30 are fixedly connected to the inner walls of the two sides of the blanking cover 28 above the blanking conveyer belt 29.
The drying device comprises a hot air cover 11 sleeved outside the blanking cover 28, one end of the hot air cover 11 is fixedly connected with a hot air fan 12, and an air inlet communicated with the hot air cover 11 is formed in the blanking cover 28.
The bottom end of the cleaning box 1 is fixedly connected with a water outlet pipe 9, and the bottom surface of the cleaning box 1 is provided with a water leakage hole communicated with the water outlet pipe 9.
Example 2
Referring to fig. 1 to 5, the other contents of the present embodiment are the same as embodiment 1, except that: the discharging device 10 is provided with a discharging conveyer belt 13 below, the supporting legs 2 are fixedly provided with a fixing support for fixing the discharging conveyer belt 13, and the fixing support is provided with a conveying motor 14.
In the implementation process of the PCB cleaning machine, firstly, a PCB is placed into a material conveying groove 27, then a first driving motor 16 and a second driving motor 18 are controlled to be started, the second driving motor 18 drives a driving belt 19 to move so as to convey the PCB to move, in the moving process of the PCB, a water pump 5 is controlled to be started to convey water in a water tank 4 and spray the water from a spray head to wash the PCB, meanwhile, a first driving motor 16 drives a brush roller 17 to rotate so as to brush the PCB for cleaning, after cleaning is finished, the PCB falls into a discharging cover 28 from a discharging channel 22 and is conveyed away by a discharging conveying belt 29, and in the discharging process, a hot air fan 12 is started to blow out hot air to dry the PCB.
According to the PCB cleaning machine, the conveying device 3, the pressing device 20 and the discharging device 10 are arranged, so that automatic conveying, moving and discharging of PCBs can be achieved, the moving PCBs can be cleaned in a brushing mode and a washing mode through the cleaning mechanism, the PCBs in the discharging process can be dried through the drying device, the whole PCB cleaning process is completed, the cleaning program is complete, the cleaned PCBs are high in cleanliness, and the cleaning effect is good.
Claims (10)
1. A device for cleaning the double surfaces of a PCB comprises a cleaning box (1), wherein four corners of the bottom end of the cleaning box (1) are respectively and fixedly provided with a supporting leg (2), it is characterized in that the center of the top end of the cleaning box (1) is fixedly connected with a water pump (5), one side of the water pump (5) is provided with a water tank (4), the input end of the water pump (5) is fixedly connected with the water tank (4), the output end of the water pump (5) is fixedly connected with a main water inlet pipe (6), the two sides of the main water inlet pipe (6) are fixedly connected with branch water inlet pipes (7), the branch water conveying pipes (7) are fixedly connected with a water inlet outer cover (8), the cleaning box is characterized in that a bearing plate penetrates through the cleaning box (1), a conveying device (3) is arranged on the bearing plate, a cleaning mechanism is arranged above and inside the conveying device (3), the bottom end of the conveying device (3) is fixedly connected with a discharging device (10), and a drying device is arranged on the discharging device (10).
2. The apparatus for double-sided cleaning of PCB as claimed in claim 1, wherein the top of the carrier board is opened with a feeding chute (27), the carrier boards on both sides of the feeding chute (27) are both provided with a driving belt (19), the outer side of the driving belt is fixedly provided with a pressing device (20), the carrier board is opened with a discharging channel (22) in the middle of the feeding chute (27), the carrier boards on both sides of the discharging channel (22) are opened with a cleaning cavity (21), and the bottom of the carrier board is fixedly connected with a second driving motor (18).
3. The device for double-sided cleaning of the PCB as recited in claim 2, wherein the cleaning mechanism comprises a fixed inner cover (15) disposed above the loading plate, the inside of the fixed inner cover (15) and the inside of the cleaning chamber (21) are rotatably connected with the brush roller (17), the top end of the fixed inner cover (15) is fixedly connected with the first driving motor (16), and the output shaft of the first driving motor (16) is in transmission connection with the brush roller (17).
4. A device for double-sided cleaning of PCB board as claimed in claim 3, wherein the water inlet outer cover (8) is connected with an inner water pipe which extends into the fixed inner cover (15) and is fixedly connected with the spray head.
5. The device for cleaning the two sides of the PCB board as claimed in claim 2, wherein the pressing device (20) comprises a side fixing block (23), the side fixing block (23) is fixedly connected with the outside of the transmission belt (19), the bottom end of the side fixing block (23) is provided with an inner cavity (24), the top end in the inner cavity (24) is fixedly connected with the spring (25), and the bottom end of the spring (25) is fixedly connected with the pressing block (26).
6. A device for double-sided cleaning of PCB boards according to claim 1, wherein the outfeed device (10) comprises a blanking cover (28), inside of which blanking cover (28) two blanking conveyor belts (29) are arranged.
7. A device for cleaning the double sides of a PCB board according to claim 6, characterized in that the blanking conveyer belt (29) is a steel wire belt, and guide plates (30) are fixedly connected on the inner walls of both sides of the blanking cover (28) above the blanking conveyer belt (29).
8. The device for cleaning two sides of a PCB board of claim 7, wherein the drying device comprises a hot air cover (11) sleeved outside the blanking cover (28), one end of the hot air cover (11) is fixedly connected with a hot air blower (12), and the blanking cover (28) is provided with an air inlet communicated with the hot air cover (11).
9. A device for cleaning two sides of a PCB board according to claim 5 or 8 is characterized in that a discharging conveyer belt (13) is arranged below the discharging device (10), a fixed bracket for fixing the discharging conveyer belt (13) is fixedly arranged on the supporting leg (2), and a conveyer motor (14) is arranged on the fixed bracket.
10. The device for double-sided cleaning of the PCB as recited in claim 1, wherein the bottom end of the cleaning box (1) is fixedly connected with a water outlet pipe (9), and the bottom surface of the cleaning box (1) is provided with a water leakage hole communicated with the water outlet pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004948.XA CN111112192A (en) | 2020-01-03 | 2020-01-03 | Device for cleaning two sides of PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004948.XA CN111112192A (en) | 2020-01-03 | 2020-01-03 | Device for cleaning two sides of PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111112192A true CN111112192A (en) | 2020-05-08 |
Family
ID=70507672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010004948.XA Withdrawn CN111112192A (en) | 2020-01-03 | 2020-01-03 | Device for cleaning two sides of PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111112192A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642080A (en) * | 2020-06-08 | 2020-09-08 | 安徽拔沃乎机电科技有限公司 | Full self-cleaning component of PCB printed circuit board |
| CN111712059A (en) * | 2020-06-23 | 2020-09-25 | 广州形银科技有限公司 | Circuit PCB washes board device |
| CN112122190A (en) * | 2020-09-23 | 2020-12-25 | 格力电器（武汉）有限公司 | Surface cleaning device and PCB mainboard |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101346949B1 (en) * | 2013-08-16 | 2014-01-03 | 김영선 | The cleaning appliance of pcb by using cleaning process of pcb |
| KR101452450B1 (en) * | 2014-03-19 | 2014-10-23 | (주)케이원테크 | Wet film roll-to-roll equipment Drying System |
| CN206373095U (en) * | 2016-05-06 | 2017-08-04 | 文登蓝岛建筑工程有限公司 | Sheet material double face cleaning, drying equipment |
| CN206966277U (en) * | 2017-07-14 | 2018-02-06 | 重庆吉佳节能科技有限公司 | A kind of glass production cleaning device |
| CN207238629U (en) * | 2017-09-22 | 2018-04-17 | 天津鸿顺达科技有限公司 | A kind of double-face cleaning device of electronics pcb board |
| CN207570194U (en) * | 2017-06-20 | 2018-07-03 | 广州祥烽机电设备有限公司 | A kind of multistage air blowing type drying machine |
| CN108380577A (en) * | 2018-05-11 | 2018-08-10 | 王丽 | A kind of two-sided cleaning device of flat glass plate processing |
| CN209134693U (en) * | 2018-08-28 | 2019-07-19 | 东阳（博罗）电子有限公司 | Pcb board face cleaning device for LDI exposure machine system |
-
2020
- 2020-01-03 CN CN202010004948.XA patent/CN111112192A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101346949B1 (en) * | 2013-08-16 | 2014-01-03 | 김영선 | The cleaning appliance of pcb by using cleaning process of pcb |
| KR101452450B1 (en) * | 2014-03-19 | 2014-10-23 | (주)케이원테크 | Wet film roll-to-roll equipment Drying System |
| CN206373095U (en) * | 2016-05-06 | 2017-08-04 | 文登蓝岛建筑工程有限公司 | Sheet material double face cleaning, drying equipment |
| CN207570194U (en) * | 2017-06-20 | 2018-07-03 | 广州祥烽机电设备有限公司 | A kind of multistage air blowing type drying machine |
| CN206966277U (en) * | 2017-07-14 | 2018-02-06 | 重庆吉佳节能科技有限公司 | A kind of glass production cleaning device |
| CN207238629U (en) * | 2017-09-22 | 2018-04-17 | 天津鸿顺达科技有限公司 | A kind of double-face cleaning device of electronics pcb board |
| CN108380577A (en) * | 2018-05-11 | 2018-08-10 | 王丽 | A kind of two-sided cleaning device of flat glass plate processing |
| CN209134693U (en) * | 2018-08-28 | 2019-07-19 | 东阳（博罗）电子有限公司 | Pcb board face cleaning device for LDI exposure machine system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642080A (en) * | 2020-06-08 | 2020-09-08 | 安徽拔沃乎机电科技有限公司 | Full self-cleaning component of PCB printed circuit board |
| CN111712059A (en) * | 2020-06-23 | 2020-09-25 | 广州形银科技有限公司 | Circuit PCB washes board device |
| CN112122190A (en) * | 2020-09-23 | 2020-12-25 | 格力电器（武汉）有限公司 | Surface cleaning device and PCB mainboard |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200508 |