CN111495873A - Multi-main-plate dust removal equipment - Google Patents
Multi-main-plate dust removal equipment Download PDFInfo
- Publication number
- CN111495873A CN111495873A CN202010394391.5A CN202010394391A CN111495873A CN 111495873 A CN111495873 A CN 111495873A CN 202010394391 A CN202010394391 A CN 202010394391A CN 111495873 A CN111495873 A CN 111495873A
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- fixedly connected
- rotating shaft
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- 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
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Abstract
The invention discloses a multi-mainboard dust removing device, which comprises a frame, wherein a cavity is arranged in the frame, a first motor is fixedly connected to the bottom wall of the cavity, a first transmission mechanism which can make a movable plate move back and forth by taking the first motor as a main power is arranged in the cavity, the invention makes a mainboard fall onto a first carrying plate through the self weight of the mainboard, further makes a second carrying plate extend outwards to receive a second mainboard, then adjusts the position of an air outlet left and right through a rotating seat, adjusts the air outlet back and forth through a third rotating shaft, drives the air outlet to move back and forth through the movable plate, completely removes dust at each position of the mainboard, and can drive the air outlet to move upwards through a hydraulic cylinder to remove dust of the upper mainboard one by one, the invention can remove dust of a plurality of mainboards simultaneously, and the placement process of the mainboards is safe and reliable through a mechanical transmission structure completely, and no dead angle exists in dust removal through fine adjustment of the air outlet.
Description
Technical Field
The invention relates to the technical field of production and processing of detergents, in particular to multi-main-plate dust removal equipment.
Background
At present, computers in China are already popularized, the number of main boards serving as one of main components of the computers is even larger, dust has an important influence on the use of the main boards, dust removal of the main boards in China is still not perfect, manual dust removal still occupies the mainstream, but the manual dust removal effect is poor, and the efficiency is low, so that batch dust removal is not convenient.
Disclosure of Invention
The invention aims to provide a multi-main-plate dust removing device which is used for overcoming the defects in the prior art.
The multi-main-plate dust removing equipment comprises a machine frame, wherein a cavity is arranged in the machine frame, the bottom wall of the cavity is fixedly connected with a first motor, a first transmission mechanism which can make the moving plate move back and forth by taking the first motor as the main power is arranged in the cavity, a movable plate is arranged on the movable plate, a second motor and a third motor are fixedly connected on the movable plate, a second transmission mechanism which takes the second motor and the third motor as main power and can rotate and rotate the spray rod is arranged in the cavity, the left and right positions in the cavity are symmetrically provided with cargo carrying mechanisms, the cargo carrying mechanisms take the gravity of the main board as the main power to enable the main board to sequentially fall on the first carrying board and the second carrying board, a sliding block is fixedly connected with the rear surface of the moving plate, a hydraulic cylinder is fixedly connected with the sliding block, and the sliding block is provided with a third transmission mechanism which takes the hydraulic cylinder as the main power and can enable the movable plate to move upwards integrally.
On the basis of the technical scheme, the first transmission mechanism comprises a first worm which is rotatably connected to the first motor, the first worm is meshed with a first worm wheel, the first worm wheel is fixedly connected to a first rotating shaft, two ends of the first rotating shaft are rotatably connected to the rack, two sides of the first rotating shaft are fixedly connected with first gears, and moving plates are meshed with upper teeth of the first gears.
On the basis of the technical scheme, the second transmission mechanism comprises the movable plate, a second motor and a third motor are fixedly connected to the movable plate, a second worm is rotatably connected to the second motor, a third worm is rotatably connected to the third motor, the second worm is meshed with a second worm wheel, the third worm is meshed with a third worm wheel, the third worm and the third worm wheel are communicated through a second rotating shaft, the second rotating shaft is fixedly connected with the second worm wheel, the second rotating shaft is rotatably connected with the third worm wheel, a first bevel gear is fixedly connected to the upper end of the second rotating shaft, a rotating seat is fixedly connected with the third worm wheel, a third rotating shaft is rotatably connected to the upper portion of the rotating seat, a spray pipe base and a second bevel gear are fixedly connected to the third rotating shaft from left to right in sequence, and the second bevel gear is meshed with the first bevel gear, the spray pipe base upper end fixedly connected with the spray lance, be equipped with the air-blower in the spray lance, the air-blower right side is opened there is the air intake, the air-blower upside is equipped with out the tuber pipe, it is equipped with the air outlet to go out tuber pipe upper end.
On the basis of the technical scheme, the cargo carrying mechanism comprises a first empty groove and a second empty groove which are formed by the frame in the cavity, a fourth rotating shaft is fixedly connected to the frame on the lower side of the first empty groove, a first carrying sleeve is rotatably connected to the fourth rotating shaft, the first carrying plate is fixedly connected to the two sides of the first carrying sleeve, a balancing weight is fixedly connected to the lower end of the outer side of the first carrying plate, a first slide way is fixedly connected to the upper side of the outer side of the first carrying plate, a first slide rod is formed in the middle of the first slide way, a first slide rod is slidably connected in the first slide way, a fifth rotating shaft is fixedly connected to the frame on the lower side of the second empty groove, a second carrying sleeve is rotatably connected to the fifth rotating shaft, the two sides of the fifth rotating shaft are fixedly connected to the second carrying plate, a connecting rod is rotatably connected to the outer side of the second carrying plate, and the other end of the connecting rod is rotatably, the second carries thing board upside fixedly connected with second slide bar, constitute in the middle of the second slide bar has the second slide, sliding connection has the second slide bar in the second slide, the second dead slot upside is laid with the principle first dead slot the second dead slot is interior and is in first year thing cover the inboard top of thing board is carried to the second first gag lever post, second gag lever post of fixedly connected with on the wall around the frame.
On the basis of the technical scheme, the fourth transmission mechanism is connected including rotating the sixth pivot of pneumatic cylinder upside, fixedly connected with sprocket in the sixth pivot, be connected with the chain on the sprocket, chain one end fixed connection be in on the sliding block, other end fixed connection be in on the fly leaf, fly leaf rear side fixedly connected with stopper, the movable plate is in stopper rear side fixedly connected with spacing slide, it has the third slide to open in the spacing slide, the stopper other end stretches into in the third slide.
The invention has the beneficial effects that: the invention makes the main board fall on the first carrying board by the dead weight of the main board, and further makes the second carrying board extend outward to receive the second main board, then adjusts the position of the air outlet left and right by the rotating seat, adjusts the air outlet front and back by the third rotating shaft, and then drives the air outlet to move in the front and back direction by the moving board, and removes dust completely for each position of the main board, and also can drive the air outlet to move upward by the hydraulic cylinder to remove dust one by one for the upper main board.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a multi-main board dust removing apparatus of the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
fig. 3 is an enlarged schematic view of fig. 2 at "B".
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1 to 3, a multi-main-plate dust removing apparatus according to an embodiment of the present invention includes a frame 10, a cavity 59 is disposed in the frame 10, a first motor 11 is fixedly connected to a bottom wall of the cavity 59, a first transmission mechanism S1 capable of moving a moving plate 15 forward and backward by using the first motor 11 as a main power is disposed in the cavity 59, the moving plate 15 is disposed with a moving plate 16, a second motor 17 and a third motor 20 are fixedly connected to the moving plate 16, a second transmission mechanism S2 capable of rotating and rotating a spray bar 29 by using the second motor 17 and the third motor 20 as main powers is disposed in the cavity 59, cargo carrying mechanisms S3 are symmetrically disposed in the cavity 59 at left and right positions, the cargo carrying mechanisms S3 are capable of sequentially landing main plates on a first cargo carrying plate 38 and a second cargo carrying plate 42 by using main plate gravity as a main power, a slide block 50 is fixedly connected to a rear surface of the moving plate 15, a hydraulic cylinder 51 is fixedly connected to the slide block 50, and a third transmission mechanism S4 capable of moving the movable plate 16 upward as a whole by using the hydraulic cylinder 51 as a main power is provided on the slide block 50.
In addition, in one embodiment, the first transmission mechanism S1 includes a first worm 12 rotatably connected to the first motor 11, the first worm 12 is engaged with a first worm wheel 49, the first worm wheel 49 is fixedly connected to a first rotating shaft 14, two ends of the first rotating shaft 14 are rotatably connected to the rack 10, two sides of the first rotating shaft 14 are fixedly connected with first gears 13, and teeth of the first gears 13 are engaged with a moving plate 15.
In addition, in one embodiment, the second transmission mechanism S2 includes the movable plate 16, the movable plate 16 is fixedly connected with a second motor 17 and a third motor 20, the second motor 17 is rotatably connected with a second worm 18, the third motor 20 is rotatably connected with a third worm 21, the second worm 18 is meshed with a second worm wheel 19, the third worm 21 is meshed with a third worm wheel 22, the third worm 21 and the third worm wheel 22 are penetrated by a second rotating shaft 23, the second rotating shaft 23 is fixedly connected with the second worm wheel 19, the second rotating shaft 23 is rotatably connected with the third worm wheel 22, a first bevel gear 25 is fixedly connected to an upper end of the second rotating shaft 23, a rotating seat 24 is fixedly connected to the third worm wheel 22, a third rotating shaft 26 is rotatably connected to an upper portion of the rotating seat 24, and a nozzle base 28 is fixedly connected to the third rotating shaft 26 in sequence from left to right, Second bevel gear 27, second bevel gear 27 with first bevel gear 25 meshes, 28 upper ends fixedly connected with of spray tube base the spray lance 29, be equipped with air-blower 30 in the spray lance 29, air-blower 30 right side is opened there is air intake 33, air-blower 30 upside is equipped with out tuber pipe 31, it is equipped with air outlet 32 to go out tuber pipe 31 upper end.
In addition, in one embodiment, the loading mechanism S3 includes a first empty slot 55 and a second empty slot 56 formed in the frame 10 in the cavity 59, a fourth rotating shaft 36 is fixedly connected to the frame 10 below the first empty slot 55, a first loading sleeve 35 is rotatably connected to the fourth rotating shaft 36, the first loading plate 38 is fixedly connected to two sides of the first loading sleeve 35, a weight 34 is fixedly connected to the outer lower end of the first loading plate 38, a first chute plate 60 is fixedly connected to the upper side of the first loading plate, a first chute 40 is formed in the first chute 60, a first sliding rod 39 is slidably connected to the first chute 40, a fifth rotating shaft 44 is fixedly connected to the frame 10 below the second empty slot 56, a second loading sleeve 43 is rotatably connected to the fifth rotating shaft 44, a second loading plate 42 is fixedly connected to two sides of the fifth rotating shaft 44, the second carries thing board 42 outside to rotate and is connected with connecting rod 41, the connecting rod 41 other end rotates to be connected on the first slide bar 39, the second carries thing board 42 upside fixedly connected with second slide plate 46, it has second slide 47 to constitute in the middle of the second slide plate 46, sliding connection has second slide bar 48 in the second slide 47, 56 upsides of second dead slot are laid with the principle first dead slot 55 in the second dead slot 56 and be in first year thing cover 35 the inboard top of thing board 42 is carried to the second fixedly connected with first gag lever post 37, second gag lever post 45 on the wall before frame 10.
In addition, in one embodiment, the fourth transmission mechanism S4 includes a sixth rotating shaft 61 rotatably connected to the upper side of the hydraulic cylinder 51, a chain wheel 62 is fixedly connected to the sixth rotating shaft 61, a chain 52 is connected to the chain wheel 62, one end of the chain 52 is fixedly connected to the sliding block 50, the other end of the chain 52 is fixedly connected to the movable plate 16, a limiting block 54 is fixedly connected to the rear side of the movable plate 16, a limiting slide 53 is fixedly connected to the rear side of the limiting block 54 of the movable plate 15, a third slide 63 is formed in the limiting slide 53, and the other end of the limiting block 54 extends into the third slide 63.
In the initial state, the first carrying plate 38 and the second carrying plate 42 are tilted, the moving plate 15 is located behind the cavity 59, and the spray rod 29 is vertical.
When the working needs to be performed, the main board is fed through the main board inlet 57 at the upper end of the rack 10, the rear main board falls down inside the first carrying board 38 under the action of self weight, at this time, the first carrying board 38 rotates around the fourth rotating shaft 36 to be horizontal, at this time, the first sliding rod 39 is arranged at the time when the first carrying board 38 rotates, the first sliding rod 39 is jacked up for a distance, the second carrying board 42 rotates back for a distance through the connecting rod 41 when jacked up, then the second main board is placed into the main board inlet 57, at this time, the main board falls into the inner side of the second carrying board 42 to rotate the second carrying board 42, the second carrying board 42 rotates flat while driving the connecting rod 41 to move upward until the first sliding rod 39 reaches the upper end of the first sliding way 40, a third board is similarly placed into the main board through the main board inlet 57, at this time, the second motor 17 is started, the second motor 17 drives the second worm gear 19 through the second worm 18 to enable the second rotating shaft 23 Rotating, driving the second bevel gear 27 by the first bevel gear 25 to rotate the third rotating shaft 26 to finally rotate the nozzle base 28, adjusting the nozzle base 28 to a proper angle, then starting the first motor 11, driving the first worm gear 49 by the first motor 11 to rotate the first gear 13, moving the moving plate 15 back and forth, starting the blower 30 and the third motor 20 while moving the moving plate 15 back and forth, driving the third worm gear 22 by the third motor 20 to rotate the rotating base 24, so that the nozzle rod 29 can rotate left and right, starting the blower 30 to blow air through the air inlet 33, blowing dust to the main plate by the air outlet 32 through the blower 30, and starting the first motor 11 to reversely rotate when the lower layer is blown, moving the moving plate 15 back to an initial position, and then, starting the hydraulic cylinder 51 to eject the movable plate upwards, wherein the chain wheel 62 is rotated by the extension of the hydraulic cylinder 51, so that the chain 52 pulls the movable plate 16 to move upwards, the limit block 54 at the rear side of the movable plate 16 falls into the third slide way 63, at this time, the movable plate 16 moves upwards to drive the limit block 54 to move in the third slide way 63, so that the movable plate 16 is ensured not to incline when moving upwards, and the movable plate is lifted to a proper height and then the above processes are repeated to remove dust on a second main plate.
The invention has the beneficial effects that: the invention makes the main board fall on the first carrying board by the dead weight of the main board, and further makes the second carrying board extend outward to receive the second main board, then adjusts the position of the air outlet left and right by the rotating seat, adjusts the air outlet front and back by the third rotating shaft, and then drives the air outlet to move in the front and back direction by the moving board, and removes dust completely for each position of the main board, and also can drive the air outlet to move upward by the hydraulic cylinder to remove dust one by one for the upper main board.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a many mainboard dust collecting equipment, includes the frame, its characterized in that: a cavity is arranged in the frame, a first motor is fixedly connected on the bottom wall of the cavity, a first transmission mechanism which can make the moving plate move back and forth by taking the first motor as main power is arranged in the cavity, a movable plate is arranged on the movable plate, a second motor and a third motor are fixedly connected on the movable plate, a second transmission mechanism which takes the second motor and the third motor as main power and can rotate and rotate the spray rod is arranged in the cavity, the left and right positions in the cavity are symmetrically provided with cargo carrying mechanisms, the cargo carrying mechanisms take the gravity of the main board as the main power to enable the main board to sequentially fall on the first carrying board and the second carrying board, a sliding block is fixedly connected with the rear surface of the moving plate, a hydraulic cylinder is fixedly connected with the sliding block, and the sliding block is provided with a third transmission mechanism which takes the hydraulic cylinder as the main power and can enable the movable plate to move upwards integrally.
2. A multi-panel dusting apparatus according to claim 1, characterized in that: the first transmission mechanism comprises a first worm which is rotatably connected to the first motor, the first worm is meshed with a first worm wheel, the first worm wheel is fixedly connected to a first rotating shaft, two ends of the first rotating shaft are rotatably connected to the rack, two sides of the first rotating shaft are fixedly connected with first gears, and moving plates are meshed with teeth on the first gears.
3. A multi-panel dusting apparatus according to claim 1, characterized in that: the second transmission mechanism comprises the movable plate, a second motor and a third motor are fixedly connected to the movable plate, a second worm is rotatably connected to the second motor, a third worm is rotatably connected to the third motor, the second worm is meshed with a second worm wheel, the third worm is meshed with a third worm wheel, the third worm and the third worm wheel are communicated through a second rotating shaft, the second rotating shaft is fixedly connected with the second worm wheel, the second rotating shaft is rotatably connected with the third worm wheel, a first bevel gear is fixedly connected to the upper end of the second rotating shaft, a rotating seat is fixedly connected to the third worm wheel, a third rotating shaft is rotatably connected to the upper portion of the rotating seat, a spray pipe base and a second bevel gear are fixedly connected to the third rotating shaft from left to right in sequence, the second bevel gear is meshed with the first bevel gear, and the spray pipe base is fixedly connected to the upper end of the spray pipe base, the air blower is arranged in the spray rod, an air inlet is formed in the right side of the air blower, an air outlet pipe is arranged on the upper side of the air blower, and an air outlet is formed in the upper end of the air outlet pipe.
4. A multi-panel dusting apparatus according to claim 1, characterized in that: the loading mechanism comprises a first empty groove and a second empty groove which are formed by the frame in the cavity, a fourth rotating shaft is fixedly connected to the frame on the lower side of the first empty groove, a first loading sleeve is rotatably connected to the fourth rotating shaft, the first loading plate is fixedly connected to the two sides of the first loading sleeve, a balancing weight is fixedly connected to the lower end of the outer side of the first loading plate, a first slide way is fixedly connected to the upper side of the first loading plate, a first slide bar is formed in the middle of the first slide way, a first slide bar is slidably connected to the first slide way, a fifth rotating shaft is fixedly connected to the frame on the lower side of the second empty groove, a second loading sleeve is rotatably connected to the fifth rotating shaft, the second loading plate is fixedly connected to the two sides of the fifth rotating shaft, a connecting rod is rotatably connected to the outer side of the second loading plate, and the other end of the connecting rod is rotatably connected to the first slide bar, the second carries thing board upside fixedly connected with second slide bar, constitute in the middle of the second slide bar has the second slide, sliding connection has the second slide bar in the second slide, the second dead slot upside is laid with the principle first dead slot the second dead slot is interior and is in first year thing cover the inboard top of thing board is carried to the second first gag lever post, second gag lever post of fixedly connected with on the wall around the frame.
5. A multi-panel dusting apparatus according to claim 1, characterized in that: the fourth transmission mechanism is connected including rotating the sixth pivot of pneumatic cylinder upside, fixedly connected with sprocket in the sixth pivot, be connected with the chain on the sprocket, chain one end fixed connection be in on the sliding block, other end fixed connection be in on the fly leaf, fly leaf rear side fixedly connected with stopper, the movable plate is in stopper rear side fixedly connected with spacing slide, it has the third slide to open in the spacing slide, the stopper other end stretches into in the third slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394391.5A CN111495873B (en) | 2020-05-11 | 2020-05-11 | Multi-main-plate dust removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394391.5A CN111495873B (en) | 2020-05-11 | 2020-05-11 | Multi-main-plate dust removal equipment |
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| Publication Number | Publication Date |
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| CN111495873A true CN111495873A (en) | 2020-08-07 |
| CN111495873B CN111495873B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010394391.5A Expired - Fee Related CN111495873B (en) | 2020-05-11 | 2020-05-11 | Multi-main-plate dust removal equipment |
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| CN (1) | CN111495873B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207188295U (en) * | 2017-09-07 | 2018-04-06 | 台州科技职业学院 | A kind of computer motherboard dust cleaning device |
| CN109101093A (en) * | 2018-08-23 | 2018-12-28 | 明光顺和自动化设备科技有限公司 | A kind of deashing dust-extraction unit for main frame |
| CN208573223U (en) * | 2017-09-26 | 2019-03-05 | 佛山智达思佳机电科技有限公司 | A kind of adjustable intelligent article rack with blower mechanism |
| CN209255310U (en) * | 2018-12-21 | 2019-08-16 | 山水电子(中国)有限公司 | A kind of circuit main board transportation system wind leaching cleaning dust remover |
| CN110314803A (en) * | 2019-08-05 | 2019-10-11 | 江苏纵湖涂装设备产业研究院有限公司 | A kind of intelligent coating machine of pre- dedusting |
| CN110465748A (en) * | 2019-08-27 | 2019-11-19 | 江山市合硕文具有限公司 | It is a kind of can automatic polishing laser marking machine |
| CN209715910U (en) * | 2019-03-15 | 2019-12-03 | 福建师范大学 | A kind of server periodically uses dust cleaning equipment |
| CN210253203U (en) * | 2019-06-22 | 2020-04-07 | 深圳市一体数科科技有限公司 | Mainboard cleaning device with dehumidification function for computer |
| CN111036590A (en) * | 2019-11-22 | 2020-04-21 | 河南职业技术学院 | Computer motherboard edulcoration device |
-
2020
- 2020-05-11 CN CN202010394391.5A patent/CN111495873B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207188295U (en) * | 2017-09-07 | 2018-04-06 | 台州科技职业学院 | A kind of computer motherboard dust cleaning device |
| CN208573223U (en) * | 2017-09-26 | 2019-03-05 | 佛山智达思佳机电科技有限公司 | A kind of adjustable intelligent article rack with blower mechanism |
| CN109101093A (en) * | 2018-08-23 | 2018-12-28 | 明光顺和自动化设备科技有限公司 | A kind of deashing dust-extraction unit for main frame |
| CN209255310U (en) * | 2018-12-21 | 2019-08-16 | 山水电子(中国)有限公司 | A kind of circuit main board transportation system wind leaching cleaning dust remover |
| CN209715910U (en) * | 2019-03-15 | 2019-12-03 | 福建师范大学 | A kind of server periodically uses dust cleaning equipment |
| CN210253203U (en) * | 2019-06-22 | 2020-04-07 | 深圳市一体数科科技有限公司 | Mainboard cleaning device with dehumidification function for computer |
| CN110314803A (en) * | 2019-08-05 | 2019-10-11 | 江苏纵湖涂装设备产业研究院有限公司 | A kind of intelligent coating machine of pre- dedusting |
| CN110465748A (en) * | 2019-08-27 | 2019-11-19 | 江山市合硕文具有限公司 | It is a kind of can automatic polishing laser marking machine |
| CN111036590A (en) * | 2019-11-22 | 2020-04-21 | 河南职业技术学院 | Computer motherboard edulcoration device |
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| CN111495873B (en) | 2021-02-12 |
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Effective date of registration: 20210126 Address after: 226600 Chengbei industrial concentration area, Hai'an County, Nantong City, Jiangsu Province Applicant after: NANTONG FEIYUE HEAVY ENGINEERING EQUIPMENT MANUFACTURING Co.,Ltd. Address before: No.301, No.10, wan'antang village, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Benet Computer Co.,Ltd. |
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Granted publication date: 20210212 Termination date: 20210511 |