CN208288573U - A kind of upright pcb board automatic flushing device - Google Patents
A kind of upright pcb board automatic flushing device Download PDFInfo
- Publication number
- CN208288573U CN208288573U CN201820436168.0U CN201820436168U CN208288573U CN 208288573 U CN208288573 U CN 208288573U CN 201820436168 U CN201820436168 U CN 201820436168U CN 208288573 U CN208288573 U CN 208288573U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- pcb board
- guide rail
- lead screw
- pallet
- 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.)
- Expired - Fee Related
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 12
- 238000005476 soldering Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 27
- 239000003292 glue Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 102000008579 Transposases Human genes 0.000 description 6
- 108010020764 Transposases Proteins 0.000 description 6
- 238000002203 pretreatment Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of upright pcb board automatic flushing devices, including pedestal, cylinder, top cover, speed regulating motor, lead screw, supporting plate mechanism, two-stage guide rail mechanism, support rod, frame plate, cylinder, swivel base, cylinder drives top cover to move down, lead screw protrudes into swivel base, speed regulating motor drives lead screw rotation, supporting plate mechanism moves downward or upward along lead screw, cleaning solution is discharged through fluid hole again after flowing through pcb board hole to be cleaned by inlet opening, due to the sealing function of silica gel ring, therefore, cleaning solution can be pressed into pcb board hole to be cleaned with certain pressure and certain speed, so that the cleaning fluid exchange speed in pcb board hole to be cleaned is accelerated, to accelerate the process of reaction.The apparatus structure is simple, cleaning solution contacts sufficiently with glue residue in pcb board hole to be cleaned, and cleaning solution is pressed into pcb board hole to be cleaned with certain pressure and speed, it can accelerate the mobility of pcb board hole to be cleaned cleaning liquid inside, effectively add deblocking reaction process, glue residue removal efficiency is improved, meanwhile, improve cleaning effect and uniformity.
Description
Technical field
The utility model relates to a kind of mechanical device more particularly to a kind of upright pcb board automatic flushing devices.
Background technique
Pcb board, Chinese are printed circuit board, are that the supporter of electronic component and electronic component electrically connect
The carrier connect.The manufacture craft of pcb board is as follows: baking sheet (pre- harmomegathus), sawing sheet, pre-treatment, patch dry film, exposure, development, etching,
Demoulding, appearance inspection (AOI), pre-treatment, solder mask printing, prebake conditions, exposure, development, rear baking, character printing, baking, table
Surface treatment (spray tin changes golden, gold-plated, OSP, selects one according to customer demand), visual examination, shape cutting, visual examination, packet
Dress, shipment.The pre-treatment of pcb board is more crucial one of process, mainly includes washing being carried out to pcb board surface and to PCB
Plate hole carries out de-smear processing.The method of pcb board hole de-smear still continues to use conventional method, i.e., pcb board is placed in drug slot
It impregnates to remove de-smear, since cleaning solution enters cleaning liquid inside concentration reduction in pcb board hole after pcb board hole react with glue residue, around
The higher cleaning solution of concentration is slowly entered in pcb board hole by diffusion way to be continued to react, so that the reaction time is longer, glue
Slag removal efficiency is very low.In view of disadvantages described above, it is really necessary to design a kind of upright pcb board automatic flushing device.
Utility model content
The purpose of this utility model is to provide a kind of upright pcb board automatic flushing device, which cleans automatically
Cleaning solution can be pressed into pcb board hole to be cleaned by device with certain pressure and speed, can accelerate pcb board hole to be cleaned cleaning liquid inside
Mobility, effectively quickening reaction process, improve glue residue removal efficiency.
In order to solve the above technical problems, the technical solution of the utility model is: a kind of upright pcb board automatic flushing device,
Including pedestal, cylinder, top cover, speed regulating motor, lead screw, supporting plate mechanism, two-stage guide rail mechanism, support rod, frame plate, cylinder, swivel base,
The cylinder is located at pedestal upper end, and the cylinder is connected with tube chamber welds with base, and the top cover is located at cylinder top, described
Speed regulating motor is located at the center of top cover top, and the speed regulating motor is connected with top cover by bolt, and the lead screw is through top
It covers and is located at speed regulating motor lower end, the lead screw is rotatedly connected with top cover and is connected with speed regulating motor key, the supporting plate machine
Structure quantity is no less than 2, and the up and down direction along the lead screw is equally spaced, and the two-stage guide rail mechanism is located on the inside of cylinder
Wall, the two-stage guide rail mechanism are connected with barrel soldering, and the support rod is located on the outside of cylinder, the support rod and cylinder
Body is connected by bolt, and the frame plate is located at post upper, and the frame plate is connected with support rod screw thread, the cylinder
Positioned at top cover top and it is located at frame plate top, the cylinder is connected by bolt with top cover and is connected with frame plate by bolt,
The swivel base is located at cylinder body bottom center, and the lead screw lower end is protruded into swivel base, and the lead screw can be in swivel base
Rotation.
The utility model further improves as follows:
Further, the cylinder is additionally provided with ball valve, and the ball valve is located at cylinder exterior bottom, the ball valve with
Cylinder is connected by bolt.
Further, the ball valve quantity is 2, is symmetrically arranged along cylinder.
Further, the supporting plate mechanism further includes feed nut, pallet, clamping plate mechanism, sliding block, silica gel ring, described
Lead screw through feed nut, the feed nut is connected with threads of lead screw, the feed nut run through pallet, it is described
Pallet is weldingly connected with feed nut, and the clamping plate mechanism quantity is no less than 2, is evenly arranged along pallet, the sliding block
Run through on the outside of pallet and by two-stage guide rail mechanism, the sliding block is weldingly connected with pallet, and the silica gel ring is located at support
On the outside of disk, the silica gel ring is Nian Jie with pallet to be connected.
Further, the clamping plate mechanism further includes lower case, upper cover plate, upper pressing ring, lower gasket, hand screw, institute
The lower case stated is located at pallet upper end, and the lower case is connected with pallet by bolt, and the upper cover plate is located at lower case
Upper end, the upper pressing ring are located at upper cover plate lower end, and the upper pressing ring is Nian Jie with upper cover plate to be connected, and the lower gasket is located at
Lower case inside bottom, the lower gasket is Nian Jie with lower case to be connected, and the hand screw is through upper cover plate and under running through
Shell, the hand screw are connected with upper cover plate screw thread and are connected with lower case screw thread.
Further, the lower case is additionally provided with inlet opening, and the inlet opening runs through lower casing phosphor bodies.
Further, the upper cover plate is additionally provided with fluid hole, and the fluid hole runs through upper cover plate main body.
Further, the two-stage guide rail mechanism further includes level-one guide rail, second level guide rail, block, and the level-one is led
Rail is located at cylinder madial wall, and the level-one guide rail is connected with barrel soldering, and the level-one guide rail runs through second level guide rail, described
Second level guide rail can be slided along level-one guide rail up and down direction, the block is located at second level guide rail upper end, the block with
Second level guide rail is connected by bolt, and when air cylinder lifting top cover, sliding block is slided along second level guide rail, after sliding block and block contact,
Second level guide rail is slided along level-one guide rail 701, to keep the stationarity of movement.
Further, the frame plate is additionally provided with avoid holes, and the avoid holes are located at frame plate center, the evacuation
Frame plate main body is run through in hole.
Compared with prior art, the upright pcb board automatic flushing device, when work, cylinder drives top cover to move up, thus will
Supporting plate mechanism, which is promoted, to be exposed, and unscrews hand screw, pcb board to be cleaned is placed in clamping plate mechanism, hand screw is tightened, so that
The upper pressing ring and lower gasket of rubber material are by pcb board four clamped edges, and then, cylinder drives top cover to move down, and are mounted with to drive
The plate supporting plate mechanism of PCB to be cleaned is extend into the intracorporal cleaning solution of cylinder, meanwhile, lead screw protrudes into swivel base, and speed regulating motor drives
Lead screw rotation, so that the supporting plate being connected with feed nut is driven to rotate, since sliding block and second level guide rail constitute sliding pair,
When lead screw rotation, supporting plate mechanism moves downward or upward along lead screw, after cleaning solution flows through pcb board hole to be cleaned by inlet opening
Be discharged again through fluid hole, due to the sealing function of silica gel ring, can by cleaning solution with certain pressure and certain speed indentation to
It cleans in pcb board hole, so that the cleaning fluid exchange speed in pcb board hole to be cleaned is accelerated, to accelerate the process of reaction.The dress
It is simple to set structure, cleaning solution contacts sufficiently with glue residue in pcb board hole to be cleaned, and cleaning solution with certain pressure and speed indentation to
Pcb board hole is cleaned, the mobility of pcb board hole to be cleaned cleaning liquid inside can be accelerated, effectively plus deblocking reaction process, raising glue residue remove
Efficiency, meanwhile, improve cleaning effect and uniformity.
Detailed description of the invention
Fig. 1 shows the utility model main view
Fig. 2 shows the utility model supporting plate mechanism top views
Fig. 3 shows the utility model clamping plate mechanism cross-sectional view
Fig. 4 shows the utility model two-stage guide rail mechanism structural schematic diagram
In figure: pedestal 1, cylinder 2, top cover 3, speed regulating motor 4, lead screw 5, supporting plate mechanism 6, two-stage guide rail mechanism 7, support rod
8, frame plate 9, cylinder 10, transposase 11 1, ball valve 201, feed nut 601, pallet 602, clamping plate mechanism 603, sliding block 604, silica gel ring
605, lower case 606, upper cover plate 607, upper pressing ring 608, lower gasket 609, hand screw 610, inlet opening 611, fluid hole 612,
Level-one guide rail 701, second level guide rail 702, block 703, avoid holes 901.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of upright pcb board automatic flushing device, including pedestal 1, cylinder 2, top cover
3, speed regulating motor 4, lead screw 5, supporting plate mechanism 6, two-stage guide rail mechanism 7, support rod 8, frame plate 9, cylinder 10, transposase 11 1, it is described
Cylinder 2 is located at 1 upper end of pedestal, and the cylinder 2 is weldingly connected with pedestal 1, and the top cover 3 is located at 2 top of cylinder, described
Speed regulating motor 4 is located at 3 top center of top cover, and the speed regulating motor 4 is connected with top cover 3 by bolt, and the lead screw 5 passes through
It wears top cover 3 and is located at 4 lower end of speed regulating motor, the lead screw 5 is rotatedly connected with top cover 3 and is connected with 4 key of speed regulating motor, described
6 quantity of supporting plate mechanism be no less than 2, the up and down direction along the lead screw 5 is equally spaced, the two-stage guide rail mechanism 7
Positioned at 2 inner sidewall of cylinder, the two-stage guide rail mechanism 7 is weldingly connected with cylinder 2, and the support rod 8 is located at outside cylinder 2
Side, the support rod 8 are connected with cylinder 2 by bolt, and the frame plate 9 is located at 8 upper end of support rod, the frame plate 9 with
8 screw thread of support rod is connected, and the cylinder 10 is located at 3 top of top cover and is located at 9 top of frame plate, the cylinder 10 and top cover 3
It is connected by bolt and is connected with frame plate 9 by bolt, the transposase 11 1 is located at 2 bottom center of cylinder, under the lead screw 5
End is protruded into transposase 11 1, and the lead screw 5 can rotate in transposase 11 1, and the cylinder 2 is additionally provided with ball valve 201, described
Ball valve 201 is located at 2 exterior bottom of cylinder, and the ball valve 201 is connected with cylinder 2 by bolt, and 201 quantity of ball valve is
2, be symmetrically arranged along cylinder 2, the supporting plate mechanism 6 further include feed nut 601, pallet 602, clamping plate mechanism 603,
Sliding block 604, silica gel ring 605, the lead screw 5 through feed nut 601, the feed nut 601 and 5 screw thread phase of lead screw
Even, the feed nut 601 runs through pallet 602, and the pallet 602 is weldingly connected with feed nut 601, the clamping plate
603 quantity of mechanism is no less than 2, is evenly arranged along pallet 602, and the sliding block 604 is located at 602 outside of pallet and is led by two-stage
Rail mechanism 7 runs through, and the sliding block 604 is weldingly connected with pallet 602, and the silica gel ring 605 is located at 602 outside of pallet, institute
The silica gel ring 605 stated it is Nian Jie with pallet 602 be connected, the clamping plate mechanism 603 further include lower case 606, upper cover plate 607, on
Pressing ring 608, lower gasket 609, hand screw 610, the lower case 606 are located at 602 upper end of pallet, the lower case 606
It is connected with pallet 602 by bolt, the upper cover plate 607 is located at 606 upper end of lower case, and the upper pressing ring 608 is located at upper
607 lower end of cover board, the upper pressing ring 608 is Nian Jie with upper cover plate 607 to be connected, and the lower gasket 609 is located in lower case 606
Side bottom, the lower gasket 609 is Nian Jie with lower case 606 to be connected, and the hand screw 610 is through upper cover plate 607 and passes through
Shell 606 is worn, the hand screw 610 is connected with 607 screw thread of upper cover plate and is connected with 606 screw thread of lower case, described
Lower case 606 is additionally provided with inlet opening 611, and the inlet opening 611 runs through 606 main body of lower case, and the upper cover plate 607 is also set
There is fluid hole 612, the fluid hole 612 runs through 607 main body of upper cover plate, and the two-stage guide rail mechanism 7 further includes that level-one is led
Rail 701, second level guide rail 702, block 703, the level-one guide rail 701 are located at 2 inner sidewall of cylinder, the level-one guide rail 701
It is weldingly connected with cylinder 2, the level-one guide rail 701 runs through second level guide rail 702, and the second level guide rail 702 can be along level-one
The sliding of 701 up and down direction of guide rail, the block 703 are located at 702 upper end of second level guide rail, the block 703 and second level guide rail
702 are connected by bolt, and when cylinder 10 promotes top cover 3, sliding block 604 is slided along second level guide rail 702, when sliding block 604 and block
After 703 contacts, second level guide rail 702 is slided along level-one guide rail 701, to keep the stationarity of movement, the frame plate 9 is additionally provided with
Avoid holes 901, the avoid holes 901 are located at 9 center of frame plate, and the avoid holes 901 run through 9 main body of frame plate, this is upright
Pcb board automatic flushing device, when work, cylinder 10 drives top cover 3 to move up, and exposes so that supporting plate mechanism 6 be promoted, and unscrews hand and twists
Pcb board to be cleaned is placed in clamping plate mechanism 603 by screw 610, tightens hand screw 610, so that the upper pressing ring of rubber material
608 and lower gasket 609 by pcb board four clamped edges, then, cylinder 10 drive top cover 3 move down, thus drive be mounted with it is to be cleaned
The plate supporting plate mechanism 6 of PCB is extend into the cleaning solution in cylinder 2, meanwhile, lead screw 5 protrudes into transposase 11 1, and speed regulating motor 4 drives
Lead screw 5 rotates, to drive the supporting plate 602 being connected with feed nut 601 to rotate, since sliding block 604 and second level guide rail 702 are constituted
Sliding pair, therefore, when lead screw 5 rotates, supporting plate mechanism 6 moves downward or upward along lead screw 5, and cleaning solution passes through inlet opening 612
It is discharged again through fluid hole 612 after flowing through pcb board hole to be cleaned, due to the sealing function of silica gel ring 605, can be by cleaning solution
It is pressed into pcb board hole to be cleaned with certain pressure and certain speed, so that the cleaning fluid exchange speed in pcb board hole to be cleaned adds
Fastly, to accelerate the process of reaction.The apparatus structure is simple, and cleaning solution contacts sufficiently with glue residue in pcb board hole to be cleaned, and clear
Washing lotion is pressed into pcb board hole to be cleaned with certain pressure and speed, can accelerate the mobility of pcb board hole to be cleaned cleaning liquid inside, have
Effect plus deblocking reaction process improve glue residue removal efficiency, meanwhile, improve cleaning effect and uniformity.
The utility model is not limited to above-mentioned specific embodiment, and those skilled in the art visualize from above-mentioned
Hair, without creative labor, the various transformation made are all fallen within the protection scope of the utility model.
Claims (9)
1. a kind of upright pcb board automatic flushing device, it is characterised in that including pedestal, cylinder, top cover, speed regulating motor, lead screw, support
Trigger structure, two-stage guide rail mechanism, support rod, frame plate, cylinder, swivel base, the cylinder are located at pedestal upper end, the cylinder with
Tube chamber welds with base is connected, and the top cover is located at cylinder top, and the speed regulating motor is located at the center of top cover top, the tune
Speed motor is connected with top cover by bolt, and the lead screw is through top cover and is located at speed regulating motor lower end, the lead screw and top
Lid is rotatedly connected and is connected with speed regulating motor key, and the supporting plate mechanism quantity is no less than 2, along the up and down direction of the lead screw
It being equally spaced, the two-stage guide rail mechanism is located at cylinder madial wall, and the two-stage guide rail mechanism is connected with barrel soldering,
The support rod is located on the outside of cylinder, and the support rod is connected with cylinder by bolt, and the frame plate is located at support rod
Upper end, the frame plate are connected with support rod screw thread, and the cylinder is located at top cover top and is located at frame plate top, the gas
Cylinder is connected by bolt with top cover and is connected with frame plate by bolt, and the swivel base is located at cylinder body bottom center, described
Lead screw lower end is protruded into swivel base, and the lead screw can rotate in swivel base.
2. upright pcb board automatic flushing device as described in claim 1, it is characterised in that the cylinder is additionally provided with ball valve,
The ball valve is located at cylinder exterior bottom, and the ball valve is connected with cylinder by bolt.
3. upright pcb board automatic flushing device as claimed in claim 2, it is characterised in that the ball valve quantity is 2, edge
Cylinder is symmetrically arranged.
4. pcb board automatic flushing device as described in claim 1 upright, it is characterised in that the supporting plate mechanism further include into
To nut, pallet, clamping plate mechanism, sliding block, silica gel ring, the lead screw through feeds nut, the feed nut and lead screw
Screw thread is connected, and the feed nut runs through pallet, and the pallet is weldingly connected with feed nut, the clamping plate mechanism number
It amount no less than 2, is evenly arranged along pallet, the sliding block is located on the outside of pallet and is run through by two-stage guide rail mechanism, described
Sliding block is weldingly connected with pallet, and the silica gel ring is located on the outside of pallet, and the silica gel ring is Nian Jie with pallet to be connected.
5. upright pcb board automatic flushing device as claimed in claim 4, it is characterised in that under the clamping plate mechanism further includes
Shell, upper cover plate, upper pressing ring, lower gasket, hand screw, the lower case are located at pallet upper end, the lower case and support
Disk is connected by bolt, and the upper cover plate is located at lower case upper end, and the upper pressing ring is located at upper cover plate lower end, and described is upper
Pressing ring is Nian Jie with upper cover plate to be connected, and the lower gasket is located at lower case inside bottom, and the lower gasket is Nian Jie with lower case
Be connected, the hand screw is through upper cover plate and runs through lower case, the hand screw be connected with upper cover plate screw thread and with
Lower case screw thread is connected.
6. upright pcb board automatic flushing device as claimed in claim 5, it is characterised in that the lower case is additionally provided with feed liquor
Hole, the inlet opening run through lower casing phosphor bodies.
7. upright pcb board automatic flushing device as claimed in claim 5, it is characterised in that the upper cover plate is additionally provided with out liquid
Hole, the fluid hole run through upper cover plate main body.
8. upright pcb board automatic flushing device as described in claim 1, it is characterised in that the two-stage guide rail mechanism also wraps
Level-one guide rail, second level guide rail, block are included, the level-one guide rail is located at cylinder madial wall, and the level-one guide rail and cylinder weld
Connected, described level-one guide rail is connect through second level guide rail, the second level guide rail can be slided along level-one guide rail up and down direction, institute
The block stated is located at second level guide rail upper end, and the block is connected with second level guide rail by bolt.
9. upright pcb board automatic flushing device as described in claim 1, it is characterised in that the frame plate is additionally provided with evacuation
Hole, the avoid holes are located at frame plate center, and the avoid holes run through frame plate main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436168.0U CN208288573U (en) | 2018-03-29 | 2018-03-29 | A kind of upright pcb board automatic flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436168.0U CN208288573U (en) | 2018-03-29 | 2018-03-29 | A kind of upright pcb board automatic flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208288573U true CN208288573U (en) | 2018-12-28 |
Family
ID=64694976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820436168.0U Expired - Fee Related CN208288573U (en) | 2018-03-29 | 2018-03-29 | A kind of upright pcb board automatic flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208288573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325920A (en) * | 2018-03-29 | 2018-07-27 | 苏州市三生电子有限公司 | A kind of upright pcb board automatic flushing device |
-
2018
- 2018-03-29 CN CN201820436168.0U patent/CN208288573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325920A (en) * | 2018-03-29 | 2018-07-27 | 苏州市三生电子有限公司 | A kind of upright pcb board automatic flushing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |