CN109550720A - A kind of printed circuit board clearing and drying device - Google Patents
A kind of printed circuit board clearing and drying device Download PDFInfo
- Publication number
- CN109550720A CN109550720A CN201710880129.XA CN201710880129A CN109550720A CN 109550720 A CN109550720 A CN 109550720A CN 201710880129 A CN201710880129 A CN 201710880129A CN 109550720 A CN109550720 A CN 109550720A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- mounting base
- drying device
- aqueduct
- 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.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000012459 cleaning agent Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B08B1/12—
-
- B08B1/32—
-
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
Abstract
The present invention relates to a kind of printed circuit board clearing and drying devices, can effectively remove the impurity for being attached to circuit board surface, and to circuit board is dried rapidly after the completion of cleaning, work efficiency is high, and cleaning quality is secure, and greatly reduces labor intensity.Wherein the piston rod of mounting base and cylinder is drivingly connected, swingle is driven by the first driving mechanism and is rotated, swingle is vertically arranged, and part is located on the outside of mounting base, and the water inlet of aqueduct is stretched in water storage tank by water inlet pipe, water storage tank is located at rack side, heater and primer pump are equipped in water storage tank, primer pump is connected to by water inlet pipe with aqueduct, and brush head is sleeved on swingle one end on the outside of mounting base, the water outlet of aqueduct is located in brush head, is rotatablely connected between aqueduct and brush head；Swivel mount is driven by the second driving mechanism and is rotated, and air hose is connected on swivel mount, and air hose passes through the warm-air supply mechanism connection on pipeline and rack.
Description
Technical field
The present invention relates to field of circuit boards more particularly to a kind of printed circuit board clearing and drying devices.
Background technique
In the welding circuit board dress connection of electronics industry, the component on circuit board is completed to process by a variety of welding procedures
Afterwards, due to the influence of solder flux, solder and environment in plate face, a certain number of residues under component pin is detained, these are remaining
Object directly affects the quality of product, must carry out cleaning the electricity function index that just can guarantee circuit board finally to guarantee electronics
The working life of the stability of product, reliability and complete machine.
Summary of the invention
The present invention is exactly in view of the deficienciess of the prior art, provide a kind of printed circuit board clearing and drying device.
To solve the above problems, the technical solution used in the present invention is as follows:
A kind of printed circuit board clearing and drying device, comprising: rack, cylinder, mounting base, brush head, the first driving mechanism,
Two driving mechanisms and warm-air supply mechanism；
The mounting base is slidably connected on the rack, and the piston rod of the mounting base and cylinder is drivingly connected, and by described
Cylinder driving moves up and down, and sets cavity in the mounting base, and horizontal connection has partition, the company of rotation on the partition in the cavity
Multiple swingles are connected to, the swingle is driven by the first driving mechanism and rotated, and the swingle is vertically arranged, and part is located at
On the outside of the mounting base, the swingle offers through-hole along it, aqueduct is connected in the through-hole with axially penetrating through, described
The water inlet of aqueduct is stretched in water storage tank by water inlet pipe, and the water storage tank is located at rack side, is set in the water storage tank
Having heaters and primer pump, the primer pump are connected to by the water inlet pipe with the aqueduct, and the brush head, which is sleeved on, to be located at
The water outlet of swingle one end on the outside of mounting base, the aqueduct is located in the brush head, the aqueduct and the brush head
Between be rotatablely connected；
The mounting base lower outside is also rotatably connected to swivel mount, and the swivel mount is turned by the driving of the second driving mechanism
It is dynamic, it is connected with air hose on the swivel mount, the air hose is axially arranged with multiple air outlets along it, and the air hose is in the horizontal plane
In the drop shadow spread of mounting base in the horizontal plane, the air hose is connected by the warm-air supply mechanism on pipeline and rack for projection
It is logical.
Preferably, spray arm is equipped in the installation cavity, the spray arm has water inlet and multiple water outlets, the spray
The water inlet of leaching arm is connected to the water inlet pipe, and the water outlet of the spray arm is connected to the aqueduct.
Preferably, the water outlet of the spray arm is connected with electrically-controlled valve.
Preferably, first driving mechanism includes first motor and gear drive, the gear drive packet
Multiple pitch wheels are included, one of gear set is sleeved in the shaft periphery of the first motor, operative gear
Swingle periphery.
Preferably, the brush head is made of loose porous sponge material.
Preferably, the warm-air supply mechanism includes heating box and blower, and the heating box has air inlet, is inside equipped with
Electric heating tube, the heating box are connected to by the blower with the air hose.
Preferably, the swivel mount includes two pieces of mounting plates for being located at the mounting base two sides, second driving
Mechanism includes the second motor, and the air hose both ends are connected on two pieces of mounting plates, and the mounting plate is by described second
Motor driven rotation.
Preferably, it is also connected with workbench in the rack, cleaning frame, the cleaning are slidably connected on the workbench
Frame is equipped with the station for inserting circuit board.
Preferably, the cleaning frame includes two fixed frames and multiple fixed frames, and described two fixed frames are opposite in parallel to be set
It sets, the fixed frame both ends are connected on described two fixed frames, and the fixed frame is equipped with multiple for fixing circuit
The station of plate, the fixed frame can carry out horizontal displacement along the fixed frame.
Preferably, the workbench is equipped with the limit plate for being limited to cleaning frame.
Compared with prior art, implementation result of the invention is as follows by the present invention:
Circuit board need to be placed below brush head by printed circuit board clearing and drying device proposed by the present invention, when use
Predetermined station on, heater heats cleaning agent, and the cleaning agent after heating is pumped into diversion by water inlet pipe by primer pump
Pipe, cleaning agent flows into brush head by aqueduct, and sufficiently soaks brush head.Cylinder drive installation seat moves downward, until brush head with
Circuit board is in contact, and the swingle rotation of the first driving mechanism driving thereafter, swingle rotation drives brush head rotation, and brush head is rotating
It is come into full contact in the process with circuit board, to realize the cleaning treatment to circuit board.After the completion of cleaning, the second driving mechanism is driven
Dynamic swivel mount rotation, so that air hose moves to right above circuit board.Warm-air supply mechanism passes through pipeline to air hose heat air delivery, heat
Wind is sprayed by air outlet to circuit board surface, to realize the drying process to circuit board.Printing electricity proposed by the present invention
Road plate clearing and drying device can clean muti-piece clean plate simultaneously, by the rotary-cleaning of the hairbrush with cleaning agent, can incite somebody to action
The impurity for being attached to circuit board surface effectively removes, and to circuit board is dried rapidly after the completion of cleaning, work is imitated
Rate is high, and cleaning quality is secure, and greatly reduces labor intensity.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of printed circuit board clearing and drying device proposed by the present invention.
Fig. 2 is the structural schematic diagram of part where cleaning frame in Fig. 1.
Specific embodiment
Illustrate the contents of the present invention below in conjunction with specific embodiments.
As shown in Fig. 1~2, Fig. 1 is a kind of structural schematic diagram of printed circuit board clearing and drying device proposed by the present invention,
Fig. 2 is the structural schematic diagram of part where cleaning frame in Fig. 1.
A kind of printed circuit board clearing and drying device proposed by the present invention, comprising: rack 1, cylinder 2, mounting base 3, brush head
13, the first driving mechanism, the second driving mechanism and warm-air supply mechanism.
The mounting base 3 is slidably connected in rack 1, and the mounting base 3 and the piston rod of cylinder 2 are drivingly connected, and by
The cylinder 2 driving moves up and down, and sets cavity in the mounting base 3, and horizontal connection has a partition in the cavity, on the partition
Multiple swingles 11 are rotatably connected to, the swingle 11 is driven by the first driving mechanism and rotated, and the swingle 11 is set vertically
It sets, and part is located at 3 outside of the mounting base, the swingle 11 offers through-hole along it with axially penetrating through, in the through-hole
It is connected with aqueduct 10, the water inlet of the aqueduct 10 is stretched in water storage tank 8 by water inlet pipe 6, and the water storage tank 8 is located at
1 side of rack, is equipped with heater 22 and primer pump 7 in the water storage tank 8, the primer pump 7 by the water inlet pipe 6 with it is described
Aqueduct 10 is connected to, and the brush head 13 is sleeved on 11 one end of swingle positioned at 3 outside of mounting base, the water outlet of the aqueduct 10
Mouth is located in the brush head 13, is rotatablely connected between the aqueduct 10 and the brush head 13, and specifically, the aqueduct 10 is logical
It crosses bulge loop 12 and the brush head 13 is rotatablely connected.
3 lower outside of mounting base is also rotatably connected to swivel mount 19, and the swivel mount 19 is driven by the second driving mechanism
Turn is dynamic, air hose 18 is connected on the swivel mount 19, the air hose 18 is axially arranged with multiple air outlets, the air hose 18 along it
In the drop shadow spread of mounting base 3 in the horizontal plane, the air hose 18 passes through on pipeline and rack 1 for projection in the horizontal plane
Warm-air supply mechanism connection.
Circuit board need to be placed under brush head 13 by printed circuit board clearing and drying device proposed by the present invention, when use
In the predetermined station of side, heater 22 heats cleaning agent, and primer pump 7 pumps the cleaning agent after heating by water inlet pipe 6
Enter aqueduct 10, cleaning agent flows into brush head 13 by aqueduct 10, and sufficiently soaks brush head 13.2 drive installation seat 3 of cylinder is downwards
Movement, until brush head 13 is in contact with circuit board, the swingle 11 of the first driving mechanism driving thereafter is rotated, and swingle 11 rotates
Brush head 13 is driven to rotate, brush head 13 comes into full contact with circuit board during rotation, to realize at the cleaning to circuit board
Reason.After the completion of cleaning, the second driving mechanism drives swivel mount 19 to rotate, so that air hose 18 moves to right above circuit board.Hot wind
By pipeline to 18 heat air delivery of air hose, hot wind is sprayed by air outlet to circuit board surface feed mechanism, to realize pair
The drying process of circuit board.
In the embodiment having, be equipped with spray arm 5 in the installation cavity, the spray arm 5 have water inlet and it is multiple go out
The mouth of a river, the water inlet of the spray arm 5 are connected to the water inlet pipe 6, and the water outlet of the spray arm 5 and the aqueduct 10 connect
It is logical.Cleaning agent is pumped into spray arm 5 by water inlet pipe 6 first by operating room's primer pump 7, then is branched to by the water outlet of spray arm 5
In multiple aqueducts 10, this is designed so that noiseless each other between aqueduct 10, each aqueduct 10 can independently to
Corresponding brush head 13 supply cleaning agent.
For the flow regime for controlling cleaning agent, the water outlet of the spray arm 5 is connected with electrically-controlled valve.
In the embodiment having, first driving mechanism includes first motor 4 and gear drive, and the gear passes
Motivation structure includes multiple pitch wheels 9, and one of gear 9 is sleeved on the shaft periphery of the first motor 4, part
Gear 9 is sleeved on 11 periphery of swingle.First motor 4 can drive swingle 11 to rotate by gear 9, due to using gear 9
The kind of drive is but also the movement of swingle 11 is more steady, to realize that brush head 13 can smoothly carry out circuit board
Scrub.
It in the embodiment having, is damaged caused by circuit board to reduce brush head 13, to improve the cleaning to circuit board
Quality, in design, the brush head 13 is made of loose porous sponge material.
In the embodiment having, the warm-air supply mechanism includes heating box 20 and blower 21, and the heating box 20 has
Air inlet, the heating box 20 is interior to be equipped with electric heating tube, and the heating box 20 is connected to by the blower 21 with the air hose 18.
Electric heating tube in heating box 20 heats air, and hot-air is delivered in air hose 18 by blower 21, and hot-air then leads to
The spout for crossing air hose 18 is sprayed to circuit board surface.
In the embodiment having, the swivel mount 19 includes two pieces of mounting plates for being located at 3 two sides of mounting base, institute
Stating the second driving mechanism includes the second motor 17, and 18 both ends of air hose are connected on two pieces of mounting plates, the peace
Loading board is driven by second motor 17 and is rotated.
When carrying out drying and processing to circuit board, 17 drive installation plate of the second motor drives air hose 18 to rotate, until air hose
18 move to right above circuit board, work with rear fan 21, to carry out drying and processing to circuit board.
In the embodiment having, it is also connected with workbench 15 in the rack 1, is slidably connected on the workbench 15 clear
Frame 14 is washed, the cleaning frame 14 is equipped with the station for inserting circuit board.
Preferably, the cleaning frame 14 includes two fixed frames 141 and multiple fixed frames 142, described two fixed frames 141
It is oppositely arranged in parallel, 142 both ends of fixed frame are connected on described two fixed frames 141, are set on the fixed frame 142
There are multiple stations for fixing circuit board, the fixed frame 142 can carry out horizontal displacement along the fixed frame.
Due to cleaning frame 14 be slidably connected on workbench 15, as needed can pull clean frame 14, so as to
Feeding or blanking more easily are carried out to circuit board.
In the embodiment having, the workbench 15 is equipped with the limit plate 16 for being limited to cleaning frame 14,
After being placed on the station of cleaning frame 14 circuit board, cleaning frame 14 can be pushed into lean with limit plate 16, so that circuit board
Immediately below brush head 13.To improve cleaning frame 14 to the applicability of circuit board size, in specific design, the fixed frame energy
Horizontal displacement is carried out along the fixed frame.
Printed circuit board clearing and drying device proposed by the present invention can clean muti-piece clean plate simultaneously, by with clear
The rotary-cleaning of the hairbrush of lotion can effectively remove the impurity for being attached to circuit board surface, and to fast after the completion of cleaning
Circuit board is dried in speed, and work efficiency is high, and cleaning quality is secure, and greatly reduces labor intensity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of printed circuit board clearing and drying device characterized by comprising rack, cylinder, mounting base, brush head, first drive
Motivation structure, the second driving mechanism and warm-air supply mechanism；
The mounting base is slidably connected on the rack, and the piston rod of the mounting base and cylinder is drivingly connected, and by the cylinder
Driving moves up and down, and sets cavity in the mounting base, horizontal connection has partition in the cavity, is rotatably connected on the partition
Multiple swingles, the swingle are driven by the first driving mechanism and are rotated, and the swingle is vertically arranged, and part is positioned at described
On the outside of mounting base, the swingle offers through-hole along it, aqueduct, the diversion is connected in the through-hole with axially penetrating through
The water inlet of pipe is stretched in water storage tank by water inlet pipe, and the water storage tank is located at rack side, is equipped with and is added in the water storage tank
Hot device and primer pump, the primer pump are connected to by the water inlet pipe with the aqueduct, and the brush head, which is sleeved on, is located at installation
The swingle one end in seat outside, the water outlet of the aqueduct is located in the brush head, between the aqueduct and the brush head
Rotation connection；
The mounting base lower outside is also rotatably connected to swivel mount, and the swivel mount is driven by the second driving mechanism and rotated, institute
It states and is connected with air hose on swivel mount, the air hose is axially arranged with multiple air outlets, the projection of the air hose in the horizontal plane along it
In drop shadow spread in mounting base in the horizontal plane, the air hose passes through the warm-air supply mechanism connection on pipeline and rack.
2. printed circuit board clearing and drying device according to claim 1, which is characterized in that be equipped with spray in the installation cavity
Arm is drenched, the spray arm has water inlet and multiple water outlets, and the water inlet of the spray arm is connected to the water inlet pipe, described
The water outlet of spray arm is connected to the aqueduct.
3. printed circuit board clearing and drying device according to claim 2, which is characterized in that the water outlet of the spray arm
Place is connected with electrically-controlled valve.
4. printed circuit board clearing and drying device according to claim 1, which is characterized in that the first driving mechanism packet
First motor and gear drive are included, the gear drive includes multiple pitch wheels, one of gear
It is sleeved on the shaft periphery of the first motor, operative gear is sleeved on swingle periphery.
5. printed circuit board clearing and drying device according to claim 1, which is characterized in that the brush head is using loose more
The sponge material in hole is made.
6. printed circuit board clearing and drying device according to claim 1, which is characterized in that warm-air supply mechanism packet
Include heating box and blower, the heating box has air inlet, in be equipped with electric heating tube, the heating box by the blower with
The air hose connection.
7. printed circuit board clearing and drying device according to claim 1, which is characterized in that the swivel mount includes two pieces
It is located at the mounting plate of the mounting base two sides, second driving mechanism includes the second motor, the air hose both ends difference
It is connected on two pieces of mounting plates, the mounting plate is rotated by second motor driven.
8. printed circuit board clearing and drying device according to claim 1, which is characterized in that be also connected in the rack
Workbench, cleaning frame is slidably connected on the workbench, and the cleaning frame is equipped with the station for inserting circuit board.
9. printed circuit board clearing and drying device according to claim 8, which is characterized in that the cleaning frame includes two
Fixed frame and multiple fixed frames, described two fixed frames are oppositely arranged in parallel, and the fixed frame both ends are connected to described two
On a fixed frame, the fixed frame is equipped with multiple stations for fixing circuit board, and the fixed frame can be along the fixed frame
Carry out horizontal displacement.
10. printed circuit board clearing and drying device according to claim 8, which is characterized in that the workbench is equipped with
Limit plate for being limited to cleaning frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880129.XA CN109550720A (en) | 2017-09-26 | 2017-09-26 | A kind of printed circuit board clearing and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880129.XA CN109550720A (en) | 2017-09-26 | 2017-09-26 | A kind of printed circuit board clearing and drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109550720A true CN109550720A (en) | 2019-04-02 |
Family
ID=65862012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880129.XA Pending CN109550720A (en) | 2017-09-26 | 2017-09-26 | A kind of printed circuit board clearing and drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109550720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944115A (en) * | 2023-09-21 | 2023-10-27 | 南通市通用电子配件厂有限公司 | Surface cleaning and descaling device for electronic components |
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|---|---|---|---|---|
| CN201422208Y (en) * | 2009-05-21 | 2010-03-10 | 北京埃森恒业科技有限公司 | Cleaning frame component used for printed circuit board cleaning machine |
| CN106216288A (en) * | 2016-08-30 | 2016-12-14 | 孝感华工高理电子有限公司 | A kind of circuit board cleaning device |
| CN205797837U (en) * | 2016-05-19 | 2016-12-14 | 寇明虎 | A kind of ceramic disk scrubbed for wafer scrubs structure |
| CN205851524U (en) * | 2016-07-01 | 2017-01-04 | 中国大唐集团科学技术研究院有限公司 | A kind of electronic solar energy photovoltaic panel cleans device |
| JP2017059809A (en) * | 2015-09-18 | 2017-03-23 | 東京エレクトロン株式会社 | Substrate processing apparatus and processing chamber cleaning method |
-
2017
- 2017-09-26 CN CN201710880129.XA patent/CN109550720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201422208Y (en) * | 2009-05-21 | 2010-03-10 | 北京埃森恒业科技有限公司 | Cleaning frame component used for printed circuit board cleaning machine |
| JP2017059809A (en) * | 2015-09-18 | 2017-03-23 | 東京エレクトロン株式会社 | Substrate processing apparatus and processing chamber cleaning method |
| CN107039306A (en) * | 2015-09-18 | 2017-08-11 | 东京毅力科创株式会社 | Substrate board treatment and processing chamber housing cleaning method |
| CN205797837U (en) * | 2016-05-19 | 2016-12-14 | 寇明虎 | A kind of ceramic disk scrubbed for wafer scrubs structure |
| CN205851524U (en) * | 2016-07-01 | 2017-01-04 | 中国大唐集团科学技术研究院有限公司 | A kind of electronic solar energy photovoltaic panel cleans device |
| CN106216288A (en) * | 2016-08-30 | 2016-12-14 | 孝感华工高理电子有限公司 | A kind of circuit board cleaning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944115A (en) * | 2023-09-21 | 2023-10-27 | 南通市通用电子配件厂有限公司 | Surface cleaning and descaling device for electronic components |
| CN116944115B (en) * | 2023-09-21 | 2023-11-24 | 南通市通用电子配件厂有限公司 | Surface cleaning and descaling device for electronic components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190402 |
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| RJ01 | Rejection of invention patent application after publication |