CN108189272A - Plastic grain screening plant - Google Patents
Plastic grain screening plant Download PDFInfo
- Publication number
- CN108189272A CN108189272A CN201711463927.9A CN201711463927A CN108189272A CN 108189272 A CN108189272 A CN 108189272A CN 201711463927 A CN201711463927 A CN 201711463927A CN 108189272 A CN108189272 A CN 108189272A
- Authority
- CN
- China
- Prior art keywords
- screening
- bucket
- plastic grain
- cylinder
- barrel
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
- B29B13/045—Conditioning or physical treatment of the material to be shaped by cooling of powders or pellets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of plastic grain screening plants, including screening bucket, sieve plate and rack, sieve plate is arranged on inside screening bucket, valve is offered in the side wall of screening bucket and bottom, it sieves bottom of the barrel and is equipped with vibrating mechanism, vibrating mechanism includes connecting rod, crank and motor, and connecting rod is hinged with screening bottom of the barrel, crank one end is hinged with connecting rod, and the other end is connect with the motor being fixed in rack；Air feed system includes mounting base, cylinder, mounting base is fixed at the bottom of screening bucket, piston rod is arranged between mounting base and the piston of cylinder, breather check valve and outgassing nonreturn valve are installed on side wall between cylinder bottom and piston, air inlet is offered on screening barrel side wall, ventilation duct is connected between air inlet and outgassing nonreturn valve.It is smaller to the damage for sieving bucket staving using this programme, it is more easily separated with sieve plate to be blocked in plastic grain larger at sieve pore.
Description
Technical field
The invention belongs to plastic manufacturing processing technique field more particularly to a kind of plastic grain screening plants.
Background technology
Pelletizing part in extruding granulator is the main device squeezed out in granulate equipment subsidiary engine, and pelletizing subsidiary engine presses its work
Mode and effect difference be divided into earnestly with two kinds of cold cut, wherein earnestly mostly using it is air-cooled it is fervent by the way of carry out pelletizing, it is air-cooled
Fervent extruder includes screw rod, machine barrel, porous plate, spreader, strip material forming panel and slicer etc., and method of work is：First
Various material by production pellet with composition of raw materials are measured and are compounded, are added in high-speed mixer after being uniformly mixed, input squeezes out
In the machine barrel of comminutor, viscous state is melted into through plasticizing, is squeezed out from the porous plate before machine barrel in strip, the blade then rotated
It is cut into the uniform pellet of length；And cold cut is granulated mode mostly by the way of check rod pelletizing, being granulated flow includes, and raw material mixes
By screw feed after conjunction, into extrusion shaping machine, the strip-shaped materials of molten are shaped at die head, and be pulled to through bracing wire
Cold rinse bank is cooled down, and strip-shaped materials after cooling pass through fabric wheel, and water suction fan housing, which enters, carries out pelletizing in pelleter.
Above two pelletizing mode will appear problems with when producing plastic grain, be held using air-cooled fervent plastic grain
Easy adhesion makes the plastic grain cut out not of uniform size, therefore needs to export through wind pressure pipeline, then cool down, at sieving after pelletizing
Reason rear can be used, and by the way of check rod pelletizing during pelletizing, since the tension of tie rod can not ensure strip-shaped materials
Size it is identical, the granular size so as to cut out differs, need carry out screening process, and cold cut be mostly it is dry cut, cutter
Friction can generate certain heat between plastics, to prevent adhesion, need to carry out cooling treatment in screening.
In existing plastic grain production, after pelletizing, mostly using the technological process sieved after first cooling drying, and
For the equipment of screening mostly using vibrating motor as driving mechanism, this can lead to problems with：1, using vibrating motor as driving
Mechanism, the vibration of one side vibrating motor is that screening bucket is made to do random motion in the horizontal direction, when larger plastic grain
When being blocked in the sieve pore of sieve plate, the movement of screening bucket horizontal direction can not be by the plastic grain being blocked at sieve pore and sieve plate point
From；On the other hand, the mechanical oscillation for the horizontal direction that vibrating motor generates can generate centrifugal force to screening bucket, make screening bucket in water
Square centrifugal movement is carried out upwards, so as to form larger active force on screening bucket bucket wall, such vibration is easily to sieve
Bucket is divided to cause certain damage.2nd, increased by the way of being sieved after first cooling is dry technological process cause production efficiency compared with
It is low, since cooling is dry and sieving technology is required to setting power source, so as to cause the increase of cost.
Invention content
The purpose of the present invention is to provide a kind of plastic grain screening plant, to solve to use vibrating motor in the prior art
Carry out the problem of big plastic grain of screening process easily blocks sieve pore.
In order to achieve the above object, base case of the invention is：
A kind of plastic grain screening plant, including screening bucket, sieve plate and rack, the sieve plate is arranged on inside screening bucket,
Valve is offered in the side wall of the screening bucket and bottom, the screening bottom of the barrel is equipped with vibrating mechanism, the vibrating mechanism
Including connecting rod, crank and motor, the connecting rod with screening bottom of the barrel be hinged, described crank one end is hinged with connecting rod, the other end and
The motor connection being fixed in rack；The screening bottom of the barrel is additionally provided with air feed system, the air feed system include mounting base and
Cylinder, the mounting base are fixed at the bottom of screening bucket, and the cylinder is arranged below screening bucket, and the cylinder is fixed on
In rack, the piston rod of the cylinder is fixedly connected in mounting base, is pacified on the cylinder sidewall far from cylinder piston rod side
Equipped with breather check valve and outgassing nonreturn valve, air inlet, the air inlet are offered on the screening barrel side wall above the sieve plate
Center line is horizontally disposed with, and ventilation duct is connected between the air inlet and outgassing nonreturn valve.
The operation principle of this base case is：Vibrating mechanism in this programme is substantially slider-crank mechanism, sieves bucket
The sliding block in slider-crank mechanism can be regarded as, crank rotation is driven after electric motor starting, is passed to the torque of crank by connecting rod
Bucket is sieved, so as to which screening bucket be made to pump；While bucket reciprocating motion is sieved, it is connected to screening bottom of the barrel
Mounting base is moved back and forth by the piston in piston rod pusher cylinder, and the gas in cylinder is made to pass through ventilation duct and enters screening
In bucket.
Before plastic grain is sieved, close screening barrel side wall and bottom valve, avoid smaller plastic grain from
The valve discharge of side wall；Plastic grain to be sieved is sent into screening bucket, when plastic grain is fallen when on sieve plate, positioned at sieve pore
The little particle at place can pass through sieve plate, and larger plastic grain can be blocked at sieve pore, when screening bucket pumps, modeling
Material particle can together be moved with the reciprocating motion of screening bucket, when sieving bucket and moving upwards, plastic grain and sieve plate be adjacent to, with
Screening bucket moves upwardly together, and when sieving bucket and moving downward, since plastic grain is not attached on sieve plate, plastic grain can be with
Sieve plate detaches；While screening bucket moves downward, the gas in piston press cylinder is pushed to discharge, and pass through by piston rod
Ventilation duct enters from air inlet in screening bucket, since air inlet center line is horizontally disposed with, into the gas of the gas generation of screening bucket
Stream makes plastic grain be moved in the horizontal direction, is blocked in the plastics bulky grain at sieve pore in this way and moves horizontally exposing sieve
Hole makes other little particles being extruded between larger plastic grain pass through sieve pore；After the completion of being sieved to plastic grain, sieve is opened
Divide barrel side wall and the valve of bottom, it will be outside the plastic grain discharge screening bucket after screening.
This base case has technical effect that：
1st, bucket is sieved in this programme to pump, compare of the prior art using vibrating motor vibrosieve
The mode of bucket, is using the advantages of reciprocating manner, on the one hand sieves bucket vibration using will not be by the way of reciprocating motion
The active force that horizontal direction is formed on bucket bucket wall is sieved, the damage for sieving bucket staving is reduced；On the other hand screening bucket is downward
During accelerated motion, it is blocked in plastic grain larger at sieve pore and is detached with sieve plate.
2nd, this programme uses the same power source, screening bucket is both driven to move reciprocatingly, plastic grain is sieved, another
Aspect drives cylinder moving by sieving the movement of bucket, and the gas that cylinder generates is made to enter in screening bucket.
3rd, the gas that cylinder generates, on the one hand can be cooled down and be dried to plastic grain；On the other hand enter screening bucket
Gas formed air-flow move horizontally the larger plastic grain detached with sieve plate, expose sieve pore, be extruded in other larger
Little particle between plastic grain can be to pass through sieve pore.
Further, vortex tube, the unidirectional air outlet valve connection vortex are also equipped between the outgassing nonreturn valve and ventilation duct
The air intake of pipe, the cold wind end of the ventilation duct connection vortex tube.When being cooled down to plastic grain in order to reach better
The gas discharged in cylinder is carried out refrigeration processing by cooling effect by installing vortex tube, then again by ventilation duct by cold wind
It is sent into screening bucket.
Further, the screening bottom of the barrel is provided with multiple air feed systems.On the one hand since screening bucket is in vibrating mechanism
Under the action of move reciprocatingly, in order to make screening bucket, position will not shift during the motion, screening bucket bottom set
Put multiple air feed systems, you can to play supporting function, more cold wind can also be provided.On the other hand, it is arranged from air feed system
The gas gone out is entered from different directions in screening bucket, preferable mixing effect can be played to plastic grain, while avoid moulding
Expect that particle certain side in bucket is sieved is accumulated.
Further, cover is provided at the top of the screening bucket, feed inlet is offered in the cover.It is set on screening bucket
The reason of cover, is, on the one hand, has gas to enter inside screening bucket and formula cooling, smaller modeling are stirred to plastic grain
Material particle can raise under the action of air-flow, be provided with cover to prevent plastic grain from raising out screening bucket, on the other hand avoid
Dust in air enters pollution of the screening bucket to plastic grain.
Further, multiple sieve plates are vertically arranged in the inside of the screening bucket, the sieve pore on each sieve plate is from top to bottom
It is gradually reduced, is equipped on screening barrel side wall to a valve corresponding with sieve plate.It in this way can be by setting slot size to plastics
Particle is sieved step by step, and passes through the corresponding valve discharge of each sieve plate.
Further, the ventilation duct uses bellows.Since screening bucket is constantly in the state of vibration during the work time,
And the ventilation duct being connected on screening bucket is driven to vibrate together, therefore ventilation tube vibration is damaged in order to prevent, using damping effect
Preferable bellows.
Description of the drawings
Fig. 1 is plastic grain screening plant schematic diagram of the present invention；
Fig. 2 is vortex tube schematic diagram；
Fig. 3 is that bucket sectional view is sieved in Fig. 1.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail：
Reference numeral in Figure of description includes：Sieve bucket 10, cover 11, feed inlet 12, sieve plate 13, sieve pore 14, valve
Door 15, rack 16, connecting rod 20, crank 21, mounting base 30, cylinder 31, piston rod 32, piston 311, breather check valve 312, outlet
Check valve 313, air inlet 33, ventilation duct 34, vortex tube 35, air intake 351, vortex generator 352, cold wind end 353, hot wind end
354。
The embodiment of the present invention is as shown in Figure 1, disclose a kind of plastic grain screening plant, including screening bucket 10, vibration
Mechanism and air feed system, wherein vibrational structure are substantially slider-crank mechanism, including the connecting rod 20 hinged with screening bucket 10 bottom,
21 one end articulated linkage 20 of crank, the other end are connect with the motor being fixed in rack 16；In addition air feed system includes, and is fixed on
Sieve the mounting base 30 of bucket 10 bottom, 30 lower section of mounting base is equipped with cylinder 31, and cylinder 31 is fixed in rack 16, mounting base 30 with
By the way that piston rod 32 is set to connect between cylinder 31,32 one end of piston rod is fixed on 30 bottom surface of mounting base, and the other end is fixed on gas
On the piston 311 of cylinder 31, be additionally provided on 31 side wall of cylinder between 31 bottom of cylinder and piston 311 breather check valve 312 and
Outgassing nonreturn valve 313 offers air inlet 33 on screening 10 side wall of bucket, passes through between breather check valve 312 and air inlet 33
Ventilation duct 34 connects, and bellows can be selected in ventilation duct 34.
In order to obtain cold wind, vortex tube 35, the structure of vortex tube 35 are equipped between ventilation duct 34 and breather check valve 312
As shown in Fig. 2, including air intake 351, vortex generator, cold wind end 353 and hot wind end 354, the air intake 351 of vortex tube 35 connects
Outgassing nonreturn valve 313 is connect, the cold wind end 353 of vortex tube 35 connects ventilation duct 34；In order to make screening bucket 10 in vibration processes not
It can deviate, 10 bottom of screening bucket is provided with multiple air feed systems.
As shown in figure 3, being equipped with cover 11 at 10 top of screening bucket, feed inlet 12 is offered in cover 11, is sieved in bucket 10
Sieve plate 13 is provided with, as needed can be with longitudinally disposed multiple sieve plates 13, the sieve pore 14 on each sieve plate 13 is from top to bottom successively
Successively decrease, be further opened with valve 15 in screening 10 side wall of bucket and bottom, the number of valve 15 is set according to the quantity of sieve plate 13.
When it is implemented, first turning on motor, motor rotation drives crank 21 to rotate, and hinged connecting rod 20 will on crank 21
Torque passes to screening bucket 10, and screening bucket 10 is made to pump, and screening bucket 10 drives while moving back and forth
The piston 311 of cylinder 31 moves reciprocatingly, and the gas in cylinder 31 is made to enter screening by bellows after the refrigeration of vortex tube 35
In bucket 10；Plastic grain to be separated is sent into from feed inlet 12 in screening bucket 10, the gas discharged in cylinder 31 is to plastics
Grain is stirred and cools down, and plastic grain reaches the reciprocating motion based on its own gravity with screening bucket 10 after sieve plate 13, bulky grain
The upper surface of sieve plate 13 is stayed in, is discharged from the valve 15 of screening 10 side wall of bucket, little particle passes through sieve plate 13 from 10 bottom of screening bucket
Valve 15 discharge.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. plastic grain screening plant, including screening bucket, sieve plate and rack, the sieve plate is arranged on inside screening bucket, described
The side wall and bottom for sieving bucket offer valve, it is characterised in that：The screening bottom of the barrel is equipped with vibrating mechanism, the vibration
Mechanism includes connecting rod, crank and motor, and the connecting rod is hinged with screening bottom of the barrel, and described crank one end is hinged with connecting rod, another
Hold and be fixed on the motor connection in rack；The screening bottom of the barrel is additionally provided with air feed system, and the air feed system includes installation
Seat and cylinder, the mounting base are fixed at the bottom of screening bucket, and the cylinder is arranged below screening bucket, and the cylinder is consolidated
It is scheduled in rack, the piston rod of the cylinder is fixedly connected in mounting base, in the cylinder sidewall far from cylinder piston rod side
On breather check valve and outgassing nonreturn valve be installed, offer air inlet on the screening barrel side wall above the sieve plate, it is described into
Air port center line is horizontally disposed with, and ventilation duct is connected between the air inlet and outgassing nonreturn valve.
2. plastic grain screening plant according to claim 1, it is characterised in that：Between the outgassing nonreturn valve and ventilation duct
It is also equipped with vortex tube, the air intake of the outgassing nonreturn valve connection vortex tube, the cold wind end of the ventilation duct connection vortex tube.
3. plastic grain screening plant according to claim 2, it is characterised in that：It is provided in the screening bottom of the barrel more
A air feed system.
4. plastic grain screening plant according to claim 3, it is characterised in that：Lid is provided at the top of the screening bucket
Body offers feed inlet in the cover.
5. plastic grain screening plant according to claim 4, it is characterised in that：In the inside of the screening bucket along longitudinal direction
It is provided with multiple sieve plates, the sieve pore on each sieve plate is gradually reduced from top to bottom, is equipped on screening barrel side wall multiple with sieve plate pair
The valve answered.
6. plastic grain screening plant according to claim 5, it is characterised in that：The ventilation duct uses bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463927.9A CN108189272A (en) | 2017-12-28 | 2017-12-28 | Plastic grain screening plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463927.9A CN108189272A (en) | 2017-12-28 | 2017-12-28 | Plastic grain screening plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108189272A true CN108189272A (en) | 2018-06-22 |
Family
ID=62585556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463927.9A Pending CN108189272A (en) | 2017-12-28 | 2017-12-28 | Plastic grain screening plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108189272A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108552346A (en) * | 2018-06-29 | 2018-09-21 | 余庆县正泰茶业发展有限公司 | A kind of process equipment of black tea |
| CN108740137A (en) * | 2018-06-29 | 2018-11-06 | 贵州省余庆县香茗茶业有限责任公司 | Green tea manage bar device |
| CN108740127A (en) * | 2018-06-29 | 2018-11-06 | 贵州省余庆县香茗茶业有限责任公司 | black tea fermentation device |
| CN108967571A (en) * | 2018-06-29 | 2018-12-11 | 贵州省桐梓县绿康茶业有限公司 | Green tea processing device |
| CN109176957A (en) * | 2018-07-11 | 2019-01-11 | 盐城康鼎机械有限公司 | A kind of plastic grain high efficiency screening device |
| CN111420870A (en) * | 2020-03-06 | 2020-07-17 | 深圳明智超精密科技有限公司 | Material distributing device |
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| CN203316387U (en) * | 2013-05-02 | 2013-12-04 | 东莞市松燊塑料科技有限公司 | Vibrating screen |
| CN104148275A (en) * | 2014-07-25 | 2014-11-19 | 三峡大学 | Screening device |
| CN204052103U (en) * | 2014-07-25 | 2014-12-31 | 三峡大学 | Screening plant |
| CN205199908U (en) * | 2015-11-27 | 2016-05-04 | 东莞市基烁实业有限公司 | Masterbatch sorting unit |
| CN205704825U (en) * | 2016-06-17 | 2016-11-23 | 亚尼塑料科技（天津）有限公司 | A kind of plastic grain chiller |
| CN206718235U (en) * | 2017-04-21 | 2017-12-08 | 上海海湾石化有限公司 | A kind of plastic grain screening machine |
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2017
- 2017-12-28 CN CN201711463927.9A patent/CN108189272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203316387U (en) * | 2013-05-02 | 2013-12-04 | 东莞市松燊塑料科技有限公司 | Vibrating screen |
| CN104148275A (en) * | 2014-07-25 | 2014-11-19 | 三峡大学 | Screening device |
| CN204052103U (en) * | 2014-07-25 | 2014-12-31 | 三峡大学 | Screening plant |
| CN205199908U (en) * | 2015-11-27 | 2016-05-04 | 东莞市基烁实业有限公司 | Masterbatch sorting unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108552346A (en) * | 2018-06-29 | 2018-09-21 | 余庆县正泰茶业发展有限公司 | A kind of process equipment of black tea |
| CN108740137A (en) * | 2018-06-29 | 2018-11-06 | 贵州省余庆县香茗茶业有限责任公司 | Green tea manage bar device |
| CN108740127A (en) * | 2018-06-29 | 2018-11-06 | 贵州省余庆县香茗茶业有限责任公司 | black tea fermentation device |
| CN108967571A (en) * | 2018-06-29 | 2018-12-11 | 贵州省桐梓县绿康茶业有限公司 | Green tea processing device |
| CN109176957A (en) * | 2018-07-11 | 2019-01-11 | 盐城康鼎机械有限公司 | A kind of plastic grain high efficiency screening device |
| CN111420870A (en) * | 2020-03-06 | 2020-07-17 | 深圳明智超精密科技有限公司 | Material distributing device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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| RJ01 | Rejection of invention patent application after publication |