CN109484807A - A kind of totally-enclosed two-way powder charging gear - Google Patents

A kind of totally-enclosed two-way powder charging gear Download PDF

Info

Publication number
CN109484807A
CN109484807A CN201811617916.6A CN201811617916A CN109484807A CN 109484807 A CN109484807 A CN 109484807A CN 201811617916 A CN201811617916 A CN 201811617916A CN 109484807 A CN109484807 A CN 109484807A
Authority
CN
China
Prior art keywords
conveyer belt
totally
enclosed
rotary shaft
charging gear
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.)
Granted
Application number
CN201811617916.6A
Other languages
Chinese (zh)
Other versions
CN109484807B (en
Inventor
耿鑫
李旸
李凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Gu Tai Automation Co Ltd
Original Assignee
Hefei Gu Tai Automation Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Gu Tai Automation Co Ltd filed Critical Hefei Gu Tai Automation Co Ltd
Priority to CN201811617916.6A priority Critical patent/CN109484807B/en
Publication of CN109484807A publication Critical patent/CN109484807A/en
Application granted granted Critical
Publication of CN109484807B publication Critical patent/CN109484807B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00Screw or rotary spiral conveyors
    • B65G33/24Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/08Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00Screw or rotary spiral conveyors
    • B65G33/24Details
    • B65G33/26Screws
    • B65G33/30Screws with a discontinuous helical surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00Screw or rotary spiral conveyors
    • B65G33/24Details
    • B65G33/34Applications of driving gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G45/00Lubricating, cleaning, or clearing devices
    • B65G45/10Cleaning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34Devices for discharging articles or materials from conveyor 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/18Preventing escape of dust
    • B65G69/185Preventing escape of dust by means of non-sealed systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The invention discloses a kind of totally-enclosed two-way powder charging gears, it includes feeding device and sealing conveying equipment, and the feeding device is located above the sealing conveying equipment;The feeding device includes shell, a bearing is respectively equipped at the shell both ends, a rotary shaft is movably equipped between the two bearings, the rotary shaft middle position is equipped with a material separating disc, sinistral coiling leaf is equipped in the rotary shaft on the left of material separating disc, dextrad helical-blade is equipped in the rotary shaft on the right side of material separating disc, the sealing conveying equipment includes seal casinghousing and conveyer belt.The present invention can guarantee that the material on conveyer belt is uniform, and smooth sequential when blanking, and powder material is avoided to fly upward, while powder material being made to avoid backflow phenomenon, guarantee the whole cleannes of conveying setting.

Description

A kind of totally-enclosed two-way powder charging gear
Technical field
The present invention relates to feeding device technical fields, more particularly to a kind of totally-enclosed two-way powder charging gear.
Background technique
Feeding device is common one of equipment in production, and especially in powder material production process, it is must can not Few equipment, it mainly by material by screw feeder equipment by material toward inputting on conveying equipment, and set by conveying It is standby to send material to next process.
Traditional feeding device, all can there are the following problems when powder material supplies:
One, since powder material is lighter, powder is easy to appear during conveying and is flown upward everywhere, ring is seriously affected Border.
Two, since feeding device is all unidirectionally to be fed, when toward conveying on conveyer, due to the easy suction of powder material It is attached, it often overstocks in screw feeder equipment, it is long-term by one, influence the supply of material.
Three, powder reflux is easy to appear at the place that conveying equipment discharges due to powder material, powder material is made to fall into conveying Normally making for conveying equipment is influenced on components inside equipment.
Four, again since powder material by screw feeder equipment to conveying equipment when being supplied, single feed opening can make powder When body material falls into the conveyer belt of conveying equipment, it is uneven on the conveyor belt to will lead to powder material, and it is next to influence powder material Quantifying for link is steady.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of totally-enclosed two-way powder charging gear.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of totally-enclosed two-way powder charging gear, it includes feeding device and sealing conveying equipment, and the feed is set It is standby to be located above the sealing conveying equipment;
The feeding device includes shell, a bearing is respectively equipped at the shell both ends, in the two bearings Between be movably equipped with a rotary shaft, the rotary shaft middle position is equipped with a material separating disc, the rotation on the left of material separating disc Axis is equipped with sinistral coiling leaf, dextrad helical-blade is equipped in the rotary shaft on the right side of material separating disc, below sinistral coiling leaf Shell is equipped with the second feed opening, and the shell below dextrad helical-blade is equipped with the first feed opening, the material separating disc top Shell on be additionally provided with hopper;Described rotary shaft one end is also connected with decelerating motor, for driving rotary shaft to rotate, and drives Sinistral coiling leaf and dextrad helical-blade rotate backward.
The sealing conveying equipment includes seal casinghousing and conveyer belt, and the conveyer belt is set to the seal casinghousing Interior, there are upper spaces above the conveyer belt and seal casinghousing, and there are down spaces below, the capsul in conveyer belt end A discharge port is equipped with below body.
Further, the seal casinghousing is to be made of six pieces of panels, and two feeding inlets are reserved above seal casinghousing, One of feeding inlet is corresponding with the first feed opening, another feeding inlet is corresponding with second feed opening.
Further, the material separating disc is located at the middle position of hopper.
Further, the diameter of the sinistral coiling leaf is less than the diameter of dextrad helical-blade.
Further, the steady material mouth of flexibility is additionally provided with below first feed opening and the second feed opening.
Further, there are spacing, its spacing size is 5cm, and flexible steady for the flexible steady material mouth lower end and lower conveyer belt Material mouth lower ending opening is parallel with conveyer belt.
Further, the discharge port is obliquely installed, and discharge port lower end is parallel to horizontal line.
Further, the seal casinghousing below the conveying end of tape is additionally provided with a baffle, the baffle with There are gaps between conveyer belt.
Further, a blower, the air outlet and baffle of the blower are additionally provided in the down space of the baffle side Gap between conveyer belt is opposite.
Further, the baffle is made of two pieces of panels, one of to be vertically arranged, and another piece is obliquely installed, and It is consistent with the inclined direction of discharge port.
The beneficial effects of the present invention are:
1) present invention uses two-way feeding, powder material is transported on conveying equipment using bidirectional screw leaf, due to double To the of different sizes of helical-blade, using right-hand screw leaf as bulk supply, left-hand screw leaf is secondary feed, to can guarantee the object on conveyer belt Material is uniform;
2) due to being respectively arranged below flexible steady material mouth in the first feed opening and the second feed opening, and under flexible steady material mouth End opening is parallel with conveyer belt, guarantees the smooth sequential in blanking, powder material is avoided to fly upward;
3) the end feed opening of the sealing conveying equipment in the present invention is used and is obliquely installed, and feed opening lower ending opening is in water Level state guarantees material when falling on weighing-appliance, and material will not be flown upward;
4) in the present invention, there are one baffles at feed opening, and there are gaps between baffle and conveyer belt, and in gap Side at be provided with blower, dried by blower, powder material made to avoid backflow phenomenon, guarantee the whole cleaning of conveying setting Degree.
Detailed description of the invention
Fig. 1 is the whole structural schematic diagram of the present invention;
Fig. 2 is feeding device structural schematic diagram of the present invention;
Fig. 3 is overlooking structure diagram of the present invention;
Fig. 4 is the top view of present invention sealing conveying equipment;
Fig. 5 is seal casinghousing structural schematic diagram of the present invention;
Fig. 6 is seal casinghousing of the present invention and conveyer belt position relationship structural diagram.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Conjunction is specifically illustrating, and the present invention is further explained.
As shown in figures 1 to 6, a kind of totally-enclosed two-way powder charging gear, it includes feeding device 1 and sealing conveying equipment 2, the feeding device 1 is located at 2 top of sealing conveying equipment;
The feeding device 1 includes shell 100, is respectively equipped with a bearing 101 at 100 both ends of shell, A rotary shaft 102 is movably equipped between the two bearings 101,102 middle position of rotary shaft is equipped with a material separating disc 103, it is equipped with sinistral coiling leaf 104 in the rotary shaft 102 in 103 left side of material separating disc, the rotary shaft 102 on 103 right side of material separating disc It is equipped with dextrad helical-blade 105, the shell 100 positioned at 104 lower section of sinistral coiling leaf is equipped with the second feed opening 106, is located at the right side It is equipped with the first feed opening 107 to the shell 100 of 105 lower section of helical-blade, is also set on the shell 100 of 103 top of material separating disc There is hopper 108;
The sealing conveying equipment 2 includes seal casinghousing 20 and conveyer belt 21, and the conveyer belt 21 is set to described In seal casinghousing 20, there are upper spaces 3 with 20 top of seal casinghousing for the conveyer belt 21, and there are down spaces 4 below, are conveying A discharge port 5 is equipped with below seal casinghousing 20 with 21 ends.
The seal casinghousing 20 is to be made of six pieces of panels, and two feeding inlets 200 are reserved above seal casinghousing 20, One of feeding inlet 200 is corresponding with the first feed opening 107, another feeding inlet 200 is corresponding with second feed opening 106.
The material separating disc 103 is located at the middle position of hopper 108.
The diameter of the sinistral coiling leaf 104 is less than the diameter of dextrad helical-blade 105.
The steady material mouth 6 of a flexibility is additionally provided with below first feed opening 107 and the second feed opening 106.
Flexible steady 6 lower end of material mouth and lower conveyer belt are there are spacing, and its spacing size is 5cm, and under flexible steady material mouth 6 End opening is parallel with conveyer belt 21.
The discharge port 5 is obliquely installed, and 5 lower end of discharge port is parallel to horizontal line.
Seal casinghousing 20 below 21 end of conveyer belt is additionally provided with a baffle 7, mainly prevents powder material It flows back in blanking, there are gaps 8 between the baffle 7 and conveyer belt 21.Down space 4 in 7 side of baffle It is inside additionally provided with a blower 9, the gap 8 between the air outlet and baffle 7 and conveyer belt 21 of the blower 9 is opposite.
The baffle 7 is made of two pieces of panels, one of to be vertically arranged, and another piece is obliquely installed, and with discharging The inclined direction of mouth 5 is consistent.
Described 102 one end of rotary shaft is also connected with decelerating motor 109, for driving rotary shaft 102 to rotate, and drives a left side It is rotated backward to helical-blade 104 and dextrad helical-blade 105.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (10)

1. a kind of totally-enclosed two-way powder charging gear, it is characterised in that: it includes feeding device (1) and sealing conveying equipment (2), the feeding device (1) is located above the sealing conveying equipment (2);
The feeding device (1) includes shell (100), is respectively equipped with a bearing at described shell (100) both ends (101), a rotary shaft (102), the rotary shaft (102) middle position are movably equipped between the two bearings (101) Equipped with a material separating disc (103), sinistral coiling leaf (104) are equipped in the rotary shaft (102) on the left of material separating disc (103), are being divided Rotary shaft (102) on the right side of charging tray (103) is equipped with dextrad helical-blade (105), the shell being located at below sinistral coiling leaf (104) (100) the second feed opening (106) are equipped with, are located at the shell (100) below dextrad helical-blade (105) and are equipped with the first feed opening (107), hopper (108) are additionally provided on the shell (100) above the material separating disc (103);Described rotary shaft (102) one end is also Decelerating motor (109) are connected with, for driving rotary shaft (102) to rotate, and drive sinistral coiling leaf (104) and dextrad helical-blade (105) it rotates backward;
The sealing conveying equipment (2) includes seal casinghousing (20) and conveyer belt (21), and the conveyer belt (21) is set to institute In the seal casinghousing (20) stated, there are upper space (3) above the conveyer belt (21) and seal casinghousing (20), below there are under Space (4) is equipped with a discharge port (5) below the seal casinghousing (20) of conveyer belt (21) end.
2. a kind of totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: the seal casinghousing It (20) is to be made of six pieces of panels, and two feeding inlets (200), one of feeding inlet are reserved above seal casinghousing (20) (200) corresponding with the first feed opening (107), another feeding inlet (200) is corresponding with second feed opening (106).
3. planting totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: the material separating disc (103) Positioned at the middle position of hopper (108).
4. planting totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: the sinistral coiling leaf (104) diameter is less than the diameter of dextrad helical-blade (105).
5. planting totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: first feed opening (107) and below the second feed opening (106) it is additionally provided with the steady material mouth of flexibility (6).
6. planting totally-enclosed two-way powder charging gear according to claim 5, it is characterised in that: the flexible steady material mouth (6) Lower end and lower conveyer belt are there are spacing, and its spacing size is 5cm, and flexible steady material mouth (6) lower ending opening and conveyer belt (21) are flat Row.
7. planting totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: the discharge port (5) inclines Tiltedly setting, discharge port (5) lower end is parallel to horizontal line.
8. planting totally-enclosed two-way powder charging gear according to claim 1, it is characterised in that: be located at the conveyer belt (21) Seal casinghousing (20) below end is additionally provided with a baffle (7), between the baffle (7) and conveyer belt (21) there are Gap (8).
9. planting totally-enclosed two-way powder charging gear according to claim 8, it is characterised in that: in the baffle (7) one It is additionally provided with a blower (9) in the down space (4) of side, between the air outlet and baffle (7) and conveyer belt (21) of the blower (9) Gap (8) is opposite.
10. planting totally-enclosed two-way powder charging gear according to claim 8, it is characterised in that: the baffle (7) be by Two pieces of panels are constituted, and one of to be vertically arranged, another piece is obliquely installed, and consistent with the inclined direction of discharge port (5).
CN201811617916.6A 2018-12-28 2018-12-28 Totally-enclosed bidirectional powder feeding device Active CN109484807B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811617916.6A CN109484807B (en) 2018-12-28 2018-12-28 Totally-enclosed bidirectional powder feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811617916.6A CN109484807B (en) 2018-12-28 2018-12-28 Totally-enclosed bidirectional powder feeding device

Publications (2)

Publication Number Publication Date
CN109484807A true CN109484807A (en) 2019-03-19
CN109484807B CN109484807B (en) 2024-02-23

Family

ID=65712800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811617916.6A Active CN109484807B (en) 2018-12-28 2018-12-28 Totally-enclosed bidirectional powder feeding device

Country Status (1)

Country Link
CN (1) CN109484807B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112844619A (en) * 2021-01-27 2021-05-28 濉溪县鲁王制粉有限责任公司 Auxiliary device is used in unloading of flour processing factory

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004210520A (en) * 2003-01-08 2004-07-29 Taisei Kogyo Kk Pneumatic transportation device for powder
CN201211979Y (en) * 2008-04-28 2009-03-25 合肥汇龙计量设备有限公司 Novel feed hopper of speed regulation quantitative feeding weigher
CN201334237Y (en) * 2008-12-19 2009-10-28 浙江菲达环保科技股份有限公司 Powder material bidirectional distribution device
KR20100024114A (en) * 2008-08-25 2010-03-05 글로벌텍 주식회사 Feeding screw for raw materials
CN102963673A (en) * 2012-11-30 2013-03-13 无锡杰思物流设备有限公司 Mixed-type air cushion belt conveyor
CN104399668A (en) * 2014-11-20 2015-03-11 嘉善杰盛无油轴承有限公司 Novel powder treating device
CN204568671U (en) * 2015-04-23 2015-08-19 周小杰 Metering-type conveyor screw
CN107472914A (en) * 2017-09-15 2017-12-15 山东司德伯重型装备有限公司 Lock feeding device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004210520A (en) * 2003-01-08 2004-07-29 Taisei Kogyo Kk Pneumatic transportation device for powder
CN201211979Y (en) * 2008-04-28 2009-03-25 合肥汇龙计量设备有限公司 Novel feed hopper of speed regulation quantitative feeding weigher
KR20100024114A (en) * 2008-08-25 2010-03-05 글로벌텍 주식회사 Feeding screw for raw materials
CN201334237Y (en) * 2008-12-19 2009-10-28 浙江菲达环保科技股份有限公司 Powder material bidirectional distribution device
CN102963673A (en) * 2012-11-30 2013-03-13 无锡杰思物流设备有限公司 Mixed-type air cushion belt conveyor
CN104399668A (en) * 2014-11-20 2015-03-11 嘉善杰盛无油轴承有限公司 Novel powder treating device
CN204568671U (en) * 2015-04-23 2015-08-19 周小杰 Metering-type conveyor screw
CN107472914A (en) * 2017-09-15 2017-12-15 山东司德伯重型装备有限公司 Lock feeding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112844619A (en) * 2021-01-27 2021-05-28 濉溪县鲁王制粉有限责任公司 Auxiliary device is used in unloading of flour processing factory
CN112844619B (en) * 2021-01-27 2023-09-26 濉溪县鲁王制粉有限责任公司 Auxiliary device for blanking of flour processing plant

Also Published As

Publication number Publication date
CN109484807B (en) 2024-02-23

Similar Documents

Publication Publication Date Title
CN102390729B (en) Weightlessness feeding system
CN209506861U (en) A kind of totally-enclosed two-way powder charging gear
CN109484807A (en) A kind of totally-enclosed two-way powder charging gear
CN107932868A (en) A kind of feeding device of extruding machine
CN202186727U (en) Weight loss feeding system
CN112317095B (en) Continuous batching and feeding integrated system for cement production
CN210580969U (en) Tobacco wire feeding device and turnover plate distribution mechanism thereof
CN213984451U (en) Plastic cable material particle drying and conveying device
CN208731731U (en) Feed bin is crushed cleaner
CN207404527U (en) It is a kind of can simultaneously feeding and discharging helix transporting device
CN209147123U (en) A kind of rotor for coal dust rotor weigher
CN110579111B (en) Molybdenum fine powder drying system utilizing waste heat of roasting kiln
CN209116325U (en) A kind of bin double formula Coal Feeding System for Circulating Fluidized Bed Combustion Boiler
CN208101070U (en) A kind of feeding device of 3D printing equipment
CN207527624U (en) A kind of fuel delivery system
CN208666566U (en) A kind of powder conveying apparatus
CN207062147U (en) Cement producing line raw material conveyor skewed slot provided with desulfurization mechanism
CN109967369A (en) Carding machine is used in a kind of charging of color selector
CN104609149B (en) A kind of feed mechanism that cutting mill is scalded for full-automatic bobbin tailfiber
CN212492376U (en) Feeding assembly of deacidification additive
CN210556916U (en) Fodder maize storage output device
CN214569117U (en) Powder conveying system
CN209188892U (en) A kind of Kowloon worm powder processing equipment
CN220802896U (en) Double powder conveying and mixing device
CN218909145U (en) Film particle mixing and feeding device

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
GR01 Patent grant
GR01 Patent grant