CN111761455A - Surface grinding device for polyethylene heat-insulation coiled material - Google Patents

Surface grinding device for polyethylene heat-insulation coiled material Download PDF

Info

Publication number
CN111761455A
CN111761455A CN201910529989.8A CN201910529989A CN111761455A CN 111761455 A CN111761455 A CN 111761455A CN 201910529989 A CN201910529989 A CN 201910529989A CN 111761455 A CN111761455 A CN 111761455A
Authority
CN
China
Prior art keywords
grinding
coiled material
frame
heat
motor
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
Application number
CN201910529989.8A
Other languages
Chinese (zh)
Inventor
许小龙
韦弋山
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.)
Wuhu Gechuan New Materials Technology Co ltd
Original Assignee
Wuhu Gechuan New Materials Technology 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 Wuhu Gechuan New Materials Technology Co ltd filed Critical Wuhu Gechuan New Materials Technology Co ltd
Priority to CN201910529989.8A priority Critical patent/CN111761455A/en
Publication of CN111761455A publication Critical patent/CN111761455A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/20Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/02Frames; Beds; Carriages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06Dust extraction equipment on grinding or polishing machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/12Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses a surface grinding device of a polyethylene heat-insulating coiled material, which relates to the technical field of air conditioner heat-insulating product processing, and comprises a frame, wherein the frame is provided with a conveying device for conveying the heat-insulating coiled material, a grinding mechanism for grinding the surface of the heat-insulating coiled material and a scrap collecting mechanism, the grinding device realizes grinding at a plurality of positions by arranging the grinding mechanism and a driving mechanism, the tool tip of a blade can cut a larger bulge by adjusting the angle between a long arm and a bent arm, the hardness of the bulge is reduced, and then the grinding wheel is used for grinding, so that the grinding quality is high, the defects that the grinding quality is uneven when a worker holds the blade for grinding and the surface of some products is raised at the position in the prior art are overcome, the problem that the scraps left after grinding are remained on the products is solved by arranging the scrap collecting mechanism, the coiled polyethylene heat-insulating coiled material is difficult to remove along with the coiling of the product, thereby bringing inconvenience to production.

Description

Surface grinding device for polyethylene heat-insulation coiled material
Technical Field
The invention relates to the technical field of air conditioner heat-insulating product processing, in particular to a surface grinding device for a polyethylene heat-insulating coiled material.
Background
According to the existing grinding method, a blade is held by a worker for grinding, and in places with large surface protrusions of some products, manual labor is not enough, so that the defect of uneven grinding quality is often caused, meanwhile, scraps left after grinding are remained on the products, are adhered to the polyethylene heat-insulation coiled materials along with the rolling of the products, and are difficult to remove, and inconvenience is brought to production.
Disclosure of Invention
The invention aims to provide a surface grinding device for a polyethylene heat-insulating coiled material, which aims to solve the defects that in the prior art, the grinding quality is uneven due to the fact that a blade is held by a worker to grind the surface of the polyethylene heat-insulating coiled material and the manual force is insufficient for the places with large surface protrusions of some products, and the defects that waste scraps left after grinding are remained on the products and are adhered to the polyethylene heat-insulating coiled material along with the rolling of the products, so that the waste scraps are difficult to remove and the production is inconvenient are overcome.
The utility model provides a polyethylene heat preservation coiled material's surperficial grinding device, includes the frame, be equipped with the conveyer of conveying heat preservation coiled material in the frame, carry out the coping mechanism of coping to heat preservation coiled material surface and carry out the sweeps collection mechanism that collects to the material sweeps that leaves after coping mechanism polishes, still be equipped with the actuating mechanism of drive coping mechanism along frame lateral motion in the frame.
Preferably, the grinding mechanism comprises a bent arm, the end of the bent arm is rotatably connected with a long arm, a first base is arranged on the bent arm, a hydraulic rod is hinged to the first base, the other end of the hydraulic rod is connected to the end of the long arm, the other end of the long arm is connected with a support frame through a screw, a first motor is arranged on the support frame, a turntable is fixedly connected to an output shaft of the first motor, a grinding wheel is arranged at the bottom end of the turntable, and a plurality of blades are mounted on the side face of the turntable.
Preferably, the driving mechanism comprises two bases II which are arranged on the rack and have the same structure, a guide rod and a threaded rod are arranged between the two bases, a motor II is arranged on one base II, an output shaft of the motor II is connected with one end of the threaded rod, a sliding block is sleeved outside the guide rod and the threaded rod, a through hole matched with the guide rod and a threaded hole matched with the threaded rod are formed in the side surface of the sliding block, the sliding block axially slides along the guide rod and the threaded rod, a connecting piece is arranged on the sliding block, and the top of the connecting piece is connected with the bottom end of the bent.
Preferably, the scrap collecting mechanism comprises a third base installed on the rack, a dust suction pipe is arranged between the third base, a plurality of dust suction holes are formed in the lower portion of the dust suction pipe, the upper portion of the dust suction pipe is connected to a dust collector through a connecting pipe, and the dust collector is arranged on one side of the rack.
Preferably, the conveying device comprises two rollers arranged at two ends of the rack, one end of each roller is connected with an output shaft of a motor III, the motor III is arranged on the rack, and the two rollers are sleeved with the conveying belt.
The invention has the advantages that: according to the invention, the grinding mechanism and the driving mechanism are arranged to realize grinding at multiple positions, the angle between the long arm and the bent arm is adjusted, the tool point of the blade can cut a large bulge, the hardness of the bulge is reduced, and then the grinding wheel is used for grinding, so that the grinding quality is high, the defects that in the prior art, the blade is ground by a hand of a worker, and the grinding quality is uneven in places with large bulges on the surfaces of some products due to insufficient manual force are overcome, and the defects that the scraps remained after grinding are remained on the products, are adhered in polyethylene heat-insulating coiled materials along with the rolling of the products, are difficult to remove and bring inconvenience to production are overcome by arranging the scrap collecting mechanism.
Drawings
Fig. 1 and 2 are schematic structural diagrams of the present invention at different angles.
Fig. 3 is a schematic structural view of the sharpening mechanism in the invention.
Fig. 4 is a schematic view of the connection between the sharpening mechanism and the sliding block in the invention.
FIG. 5 is a schematic view showing the construction of the scrap collecting mechanism according to the present invention.
The automatic grinding machine comprises a machine frame 1, a grinding mechanism 2, a driving mechanism 3, a scrap collecting mechanism 4, a conveying device 5, a bent arm 6, a long arm 7, a base I8, a hydraulic rod 9, a support frame 10, a motor I11, a rotating disc 12, a grinding wheel 13, a blade 14, a base II 15, a guide rod 17, a threaded rod 18, a motor II 19, a sliding block 20, a through hole 21, a threaded hole 22, a connecting piece 23, a base III 24, a dust suction pipe 25, a dust suction hole 26, a connecting pipe 27, a dust collector 28, a roller 29, a motor III 30 and a conveying belt 31.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the surface grinding device for the polyethylene heat-insulating coiled material comprises a frame 1, wherein a conveying device 5 for conveying the heat-insulating coiled material, a grinding mechanism 2 for grinding the surface of the heat-insulating coiled material and a waste chip collecting mechanism 4 for collecting waste chips of materials left after the grinding mechanism 2 is ground are arranged on the frame 1, and a driving mechanism 3 for driving the grinding mechanism 2 to move transversely along the frame 1 is further arranged on the frame 1.
In this embodiment, coping mechanism 2 includes bent arm 6, bent arm 6 tip rotates connects long arm 7, be equipped with one 8 of base on the bent arm 6, articulated hydraulic stem 9 is gone up to one 8 of base, the hydraulic stem 9 other end is connected in long arm 7 tip, long arm 7 other end screw connection support frame 10, install motor 11 on the support frame 10, fixedly connected with carousel 12 on the output shaft of motor 11, carousel 12 bottom is equipped with the wheel of polishing 13, carousel 12 side-mounting has several blade 14. The driving mechanism 3 comprises two bases 15 which are arranged on the rack 1 and have the same structure, a guide rod 17 and a threaded rod 18 are arranged between the two bases 15, a motor II 19 is arranged on one base 15, an output shaft of the motor II 19 is connected with one end of the threaded rod 18, a sliding block 20 is sleeved outside the guide rod 17 and the threaded rod 18, a through hole 21 matched with the guide rod 17 and a threaded hole 22 matched with the threaded rod 18 are formed in the side surface of the sliding block 20, the sliding block 20 axially slides along the guide rod 17 and the threaded rod 18, a connecting piece 23 is arranged on the sliding block 20, and the bottom end of the bent arm 6 is connected above the connecting piece 23.
In addition, the scrap collecting mechanism 4 comprises two bases 24 arranged on the frame 1, a dust suction pipe 25 is arranged between the two bases 24, a plurality of dust suction holes 26 are formed below the dust suction pipe 25, the upper part of the dust suction pipe 25 is connected to a dust collector 28 through a connecting pipe 27, and the dust collector 28 is arranged on one side of the frame 1. The conveying device 5 comprises two rollers 29 arranged at two ends of the rack 1, one end of each roller 29 is connected with an output shaft of a motor III 30, the motor III 30 is arranged on the rack 1, and a conveying belt 31 is sleeved outside each roller 29. The hydraulic rod 9, the first motor 11, the second motor 19, the third motor 30 and the dust collector 28 are electrically connected with a workshop PLC.
The working process and principle are as follows: when the device is used, the device is matched with an air conditioner heat-preservation coiled material processing workshop for use, and is used for the previous process of coiling a polyethylene heat-preservation coiled material, a motor III 30 is started to drive a roller 29 to rotate, so that a conveyor belt 31 drives the polyethylene heat-preservation coiled material to advance, when a worker finds that the surface of the polyethylene heat-preservation coiled material protrudes, the motor III 30 is stopped to run, a motor II 19 is started to drive a threaded rod 18 to rotate, so that a sliding block 20 and a grinding mechanism 2 are driven to move to proper positions along the axial direction of a guide rod 17 and the threaded rod 18, the worker starts a hydraulic rod 9 according to the size of the surface protrusion of the polyethylene heat-preservation coiled material, adjusts the angle between a long arm 7 and a bent arm 6, if the protrusion is large, the long arm 7 is firstly inclined, the knife tip position of a blade 14 is aligned to protrude, then the motor I11 is started, a turntable 12 drives, the long arm 7 is adjusted to be vertical, the grinding wheel 13 is used for grinding broken bulges until the broken bulges meet the grinding quality, the grinding is stopped, the hydraulic rod 9 is started, the long arm 7 is inclined, products are prevented from being accidentally injured, the motor III 30 is started, scraps left after grinding move forward to the position below a dust suction pipe 25 of the scrap collecting mechanism 4 along with the polyethylene heat-insulating coiled material, a dust collector 28 is started, and the scraps enter the dust suction pipe 25 from a dust suction hole 26 below the dust suction pipe 25 and are sucked into the dust collector 28 through a connecting pipe 27.
Based on the above, the grinding mechanism 2 and the driving mechanism 3 are arranged to realize grinding at multiple positions, the knife tip of the blade 14 can cut a large bulge by adjusting the angle between the long arm 7 and the bent arm 6, the hardness of the bulge is reduced, and the grinding wheel 13 is used for grinding, so that the grinding quality is high, the defects that grinding is carried out by a worker holding the blade by hand and grinding quality is uneven in places with large bulges on the surfaces of some products due to insufficient manual force in the prior art are overcome, and the defects that the scraps left after grinding are remained on the products and are difficult to remove and inconvenient to produce due to the fact that the products are stuck in the polyethylene heat-insulation coiled material.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (5)

1. The utility model provides a surface grinding device of polyethylene heat preservation coiled material, its characterized in that, includes frame (1), be equipped with conveyer (5) of conveying heat preservation coiled material on frame (1), carry out coping mechanism (2) of coping to heat preservation coiled material surface and carry out sweeps collection mechanism (4) that collect to the material sweeps that leaves after coping mechanism (2) are polished, still be equipped with drive mechanism (3) that drive coping mechanism (2) followed frame (1) lateral motion on frame (1).
2. The surface grinding device for the polyethylene heat-preservation coiled material according to claim 1, characterized in that: coping mechanism (2) includes curved boom (6), curved boom (6) tip rotates connects long arm (7), be equipped with base (8) on curved boom (6), articulated hydraulic stem (9) are gone up in base (8), hydraulic stem (9) other end is connected in long arm (7) tip, long arm (7) other end screw connection support frame (10), install motor (11) on support frame (10), fixedly connected with carousel (12) on the output shaft of motor (11), carousel (12) bottom is equipped with grinding wheel (13), carousel (12) side-mounting has several blade (14).
3. The surface grinding device for the polyethylene heat-preservation coiled material according to claim 2, characterized in that: the driving mechanism (3) comprises two bases (15) which are arranged on the rack (1) and have the same structure, a guide rod (17) and a threaded rod (18) are arranged between the two bases (15), a motor II (19) is arranged on one base (15), one end of an output shaft of the motor II (19) is connected with one end of the threaded rod (18), a sliding block (20) is sleeved outside the guide rod (17) and the threaded rod (18), a through hole (21) matched with the guide rod (17) and a threaded hole (22) matched with the threaded rod (18) are formed in the side face of the sliding block (20), the sliding block (20) slides axially along the guide rod (17) and the threaded rod (18), a connecting piece (23) is arranged on the sliding block (20), and the bottom end of the bent arm (6) is connected above the connecting piece (23).
4. The surface grinding device for the polyethylene heat-preservation coiled material according to claim 3, characterized in that: mechanism (4) is collected to sweeps is including installing two bases three (24) on frame (1), is equipped with dust absorption pipe (25) between two bases three (24), open dust absorption pipe (25) below has several dust absorption hole (26), dust absorption pipe (25) top is connected to dust catcher (28) through connecting pipe (27), frame (1) one side is arranged in to dust catcher (28).
5. The surface grinding device for the polyethylene heat-preservation coiled material according to claim 4, characterized in that: the conveying device (5) comprises two rollers (29) arranged at two ends of the rack (1), one end of each roller (29) is connected with an output shaft of a motor III (30), the motor III (30) is arranged on the rack (1), and a conveying belt (31) is sleeved outside each roller (29).
CN201910529989.8A 2019-06-19 2019-06-19 Surface grinding device for polyethylene heat-insulation coiled material Pending CN111761455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910529989.8A CN111761455A (en) 2019-06-19 2019-06-19 Surface grinding device for polyethylene heat-insulation coiled material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910529989.8A CN111761455A (en) 2019-06-19 2019-06-19 Surface grinding device for polyethylene heat-insulation coiled material

Publications (1)

Publication Number Publication Date
CN111761455A true CN111761455A (en) 2020-10-13

Family

ID=72718848

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910529989.8A Pending CN111761455A (en) 2019-06-19 2019-06-19 Surface grinding device for polyethylene heat-insulation coiled material

Country Status (1)

Country Link
CN (1) CN111761455A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203509553U (en) * 2013-09-22 2014-04-02 安徽沃德气门制造有限公司 Air valve machining device with cutting and polishing functions
KR20140050155A (en) * 2012-10-17 2014-04-29 희성금속 주식회사 Local grinding device and method of resistance welding machine
CN104551232A (en) * 2014-12-30 2015-04-29 苏州欧美克合金工具有限公司 Tool with cutting and grinding functions
CN204430977U (en) * 2014-12-31 2015-07-01 天津宇进涂装工程有限公司 A kind of ground sander
CN204976363U (en) * 2015-09-02 2016-01-20 赣州格瑞祥木塑有限公司 Board transmission line of polishing is moulded to wood
CN205438035U (en) * 2016-03-04 2016-08-10 安徽捷众生物化学有限公司 Traditional chinese medicine cutter multi freedom grinding device for coping
CN207071836U (en) * 2017-06-05 2018-03-06 广东科技学院 A kind of beaming roller sanding apparatus
CN207272959U (en) * 2017-10-17 2018-04-27 泗阳凤尚装饰材料有限公司 One kind decoration wallpaper polishing remove device
CN207534552U (en) * 2017-11-07 2018-06-26 浙江翔发耐火材料有限公司 A kind of refractory material flash grinding device
CN109277919A (en) * 2018-11-14 2019-01-29 漳浦金盛智能科技有限公司 Sander
CN109352458A (en) * 2018-11-02 2019-02-19 泉州智驰自动化机械有限公司 A kind of automatic grinding machine of the edge of work

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140050155A (en) * 2012-10-17 2014-04-29 희성금속 주식회사 Local grinding device and method of resistance welding machine
CN203509553U (en) * 2013-09-22 2014-04-02 安徽沃德气门制造有限公司 Air valve machining device with cutting and polishing functions
CN104551232A (en) * 2014-12-30 2015-04-29 苏州欧美克合金工具有限公司 Tool with cutting and grinding functions
CN204430977U (en) * 2014-12-31 2015-07-01 天津宇进涂装工程有限公司 A kind of ground sander
CN204976363U (en) * 2015-09-02 2016-01-20 赣州格瑞祥木塑有限公司 Board transmission line of polishing is moulded to wood
CN205438035U (en) * 2016-03-04 2016-08-10 安徽捷众生物化学有限公司 Traditional chinese medicine cutter multi freedom grinding device for coping
CN207071836U (en) * 2017-06-05 2018-03-06 广东科技学院 A kind of beaming roller sanding apparatus
CN207272959U (en) * 2017-10-17 2018-04-27 泗阳凤尚装饰材料有限公司 One kind decoration wallpaper polishing remove device
CN207534552U (en) * 2017-11-07 2018-06-26 浙江翔发耐火材料有限公司 A kind of refractory material flash grinding device
CN109352458A (en) * 2018-11-02 2019-02-19 泉州智驰自动化机械有限公司 A kind of automatic grinding machine of the edge of work
CN109277919A (en) * 2018-11-14 2019-01-29 漳浦金盛智能科技有限公司 Sander

Similar Documents

Publication Publication Date Title
CN206343714U (en) A kind of chamfering machine
CN109676460B (en) Pipe end polishing device
CN111251154A (en) Mechanical cutting deruster
CN213531937U (en) Burr grinding device for aluminum profile
CN111516028A (en) Pipeline sample automatic cutting and trimming production line
CN111761455A (en) Surface grinding device for polyethylene heat-insulation coiled material
CN112936078A (en) Intraductal burnishing device
CN116442046A (en) Trimming device for automobile hub
CN217655779U (en) Rotary type efficient cutting and shaping device for ceramic chip capacitor machining
CN212420611U (en) Automatic sharpening type rail rope saw
CN214294059U (en) Full-automatic equipment for trimming tire hair
CN212793903U (en) Multi-functional mould steel cutting device
CN111644911A (en) Automatic sharpening type rail rope saw and working method thereof
CN114536139A (en) Burr clearing device for steel belt production
CN104117917B (en) A kind of metal tube polishing collection device
CN216370480U (en) Single-person controllable saw blade grinding lathe
CN219837545U (en) White steel knife production facility that suitability is strong
CN204913579U (en) Automatic burnishing machine of nickel material with grey device of collection
CN204053800U (en) A kind of metal tube polishing gathering-device
CN220217896U (en) Frame locating connection pin surface grinding device
CN219255040U (en) Terrace polisher
CN104108024B (en) Equipment for bottle cap bound edge
CN221270602U (en) Burr cleaning device of transverse shearing machine
CN219837913U (en) Door pocket line crop feeder
CN213054184U (en) Clean type sand paper grinding machine

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: 20201013

RJ01 Rejection of invention patent application after publication