CN107097135A - A kind of simple based plate derusting device - Google Patents

A kind of simple based plate derusting device Download PDF

Info

Publication number
CN107097135A
CN107097135A CN201710481160.6A CN201710481160A CN107097135A CN 107097135 A CN107097135 A CN 107097135A CN 201710481160 A CN201710481160 A CN 201710481160A CN 107097135 A CN107097135 A CN 107097135A
Authority
CN
China
Prior art keywords
fixed station
motor
type supporting
plate
supporting plate
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
CN201710481160.6A
Other languages
Chinese (zh)
Other versions
CN107097135B (en
Inventor
汪建文
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.)
Anhui Xinjiuya Photoelectric Technology Co ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201710481160.6A priority Critical patent/CN107097135B/en
Publication of CN107097135A publication Critical patent/CN107097135A/en
Application granted granted Critical
Publication of CN107097135B publication Critical patent/CN107097135B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B24B27/00Other grinding machines or devices
    • B24B27/033Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B24B27/04Grinding machines or devices in which the grinding tool is supported on a swinging arm
    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • 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
    • B24B47/02Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The present invention relates to a kind of simple based plate derusting device, including bottom plate, the L-type supporting plate being connected with bottom plate, it is fixed on the mounting post on bottom plate, it is fixed on the motor on bottom plate, grinding wheel is provided with mounting post, transmission device is connected between grinding wheel and motor, the free end of L-type supporting plate is provided with the fixed station of horizontal reciprocating movement, reciprocally swinging mechanism is provided between fixed station and motor, clamp system is provided with fixed station, transmission device includes a bevel gear, No. two bevel gears, a number transmission mechanism, reciprocally swinging mechanism includes major axis, swing rod, sliding sleeve, stock, a number gear, No. two gears, rack, No. two transmission mechanisms, clamp system includes a threaded rod, a number gripping block, No. two threaded rods, No. two gripping blocks.It can realize that the surface of sheet material obtains sufficiently polishing derusting using the present apparatus, eliminate derusting blind area, one motor of whole device drives, and energy consumption is low and device stability is good.

Description

A kind of simple based plate derusting device
Technical field
The present invention relates to rust removalling equipment technical field, specifically a kind of simple based plate derusting device.
Background technology
Sheet metal is chronically exposed in air, and the surface of sheet material can produce layer oxide film, reduce the property of sheet metal Follow-up processing and fabricating and can be influenceed, therefore, sheet material will be derusted, and the method typically derusted is divided into two kinds:One is to adopt Method manually is derusted by sander, and two be to use mechanical derusting, and carrying out plate surface polishing by emery wheel or sandbag removes Rust.
Chinese Patent Application No. discloses a kind of device of removing rust on sheet metal for 200810125525.2, and its feature exists In, including, frame, in frame be used for clamp sheet material sheet material clamp system, at least one be located at the sheet material clamp system The belt sanding mechanism of side, at least one pressure exerting arrangement being located in the sheet material clamp system, the connection belt grinder Second transmission mechanism of the first transmission mechanism of structure and the connection pressure exerting arrangement and with the first, second transmission mechanism phase Even controlling organization, the controlled abrasive band forced by the pressure exerting arrangement in the belt sanding mechanism of the controlling organization with The surface moving contact of the sheet material is removed with the metal oxide layer completed to plate surface.Both artificial derusting can have been solved not thorough The problem of, the labor intensity of workman can be mitigated again, production efficiency is improved, the replacing number of times of abrasive material is reduced, production cost is reduced.
But, this device is fixed using sheet material, and the effect of derusting, the table of sheet material are reached by way of belt sanding The processing of face derusting is uneven, and the part without emery wheel and pressure exerting arrangement can form derusting blind area and cannot fully derust, entirely Device is related to multiple motors, and high energy consumption, the center of gravity of device is high, and less stable is unfavorable for operating and is easy to bring peace Full hidden danger.
The content of the invention
In order to avoid with solve above-mentioned technical problem, the present invention proposes a kind of simple based plate derusting device.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of simple based plate derusting device, including bottom plate, be connected with bottom plate L-type supporting plate, be fixed on bottom plate Grinding wheel is provided with mounting post, the motor being fixed on bottom plate, the mounting post, is connected between the grinding wheel and motor Transmission device is connected to, the free end of the L-type supporting plate is provided with the fixed station of horizontal reciprocating movement, the fixed station and motor Between be provided with reciprocally swinging mechanism, the fixed station and be provided with clamp system.
It is preferred that, the transmission device include with grinding wheel coaxially a connected bevel gear, engage with a bevel gear And No. two bevel gears in mounting post, a transmission on the axle of No. two bevel gears and on the axle of motor Mechanism.
It is preferred that, the reciprocally swinging mechanism includes the major axis, the swing rod being fixed on major axis, hinge being connected with motor The sliding sleeve that is connected on swing rod, one end are hinged at the top of mounting post and the other end is connected with the stock of arc-shaped gear, engaged with arc-shaped gear And a gear installed in L-type supporting plate lower end, No. two gears and No. two gears installed in L-type supporting plate left side upper end Engage and be connected to the rack on fixed station right side, No. two on the axle of No. two gears and on the axle of gear biographies Motivation structure, the stock is slidably mounted on sliding sleeve.
It is preferred that, the fixed station is slidably mounted in L-type supporting plate, and the fixed station is slided perpendicular to L-type supporting plate, The bottom of the fixed station is provided with the boss for being provided with and coordinating with slideway on slideway, the left side of the L-type supporting plate.
It is preferred that, the clamp system include being arranged on fixed station and along fixed station length direction it is symmetrical one Number threaded rod, a threaded rod is connected with inside a gripping block, a threaded rod close to one end of grinding wheel pacifies Equipped with No. two threaded rods, the right-hand member of No. two threaded rods is connected with No. two gripping blocks.
It is preferred that, a transmission mechanism and No. two transmission mechanisms are tape handler.
The beneficial effects of the invention are as follows:
Smart structural design of the present invention, is derusted so that sheet material by the way of sheet material and grinding wheel are moved simultaneously Surface treatment is uniform and can obtain fully polishing derusting, eliminates derusting blind area, is realized and thoroughly removed by the polishing that moves in circles Rust, one motor of whole device drives, and energy consumption is low, and the center of gravity of device is low, and stability is good, is conducive to operating and can avoid The generation of potential safety hazard.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is stereogram of the invention;
Fig. 2 is Fig. 1 I partial enlarged drawings;
Fig. 3 is front view of the invention;
Fig. 4 is Fig. 3 II partial enlarged drawing.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, below it is right The present invention is expanded on further.
As shown in Figures 1 to 4, a kind of simple based plate derusting device, including bottom plate 1, be connected with bottom plate 1 L-type support Grinding wheel is provided with plate 2, the mounting post 3 being fixed on bottom plate 1, the motor 4 being fixed on bottom plate 1, the mounting post 3 5, it is connected with transmission device between the grinding wheel 5 and motor 4, it is past that the free end of the L-type supporting plate 2 is provided with level The fixed station 6 moved again, is provided with reciprocally swinging mechanism, the fixed station 6 between the fixed station 6 and motor 4 and sets It is equipped with clamp system.
Using above-mentioned this mode, the rotary-grinding of grinding wheel 5, clamping machine are driven via transmission device by motor 4 Structure clamps sheet material, by the effect of reciprocally swinging mechanism, the power of motor 4 is delivered on fixed station so that fixed station 6 Horizontal reciprocating movement is carried out, clamp system fixed plate is moved back and forth in company with fixed station 6, while the contact sheet material of grinding wheel 5 is carried out Polishing, realizes that the repetition to sheet material is polished, and then thoroughly derusting comprehensively.
The transmission device include with grinding wheel 5 coaxially a connected bevel gear 7, with a bevel gear 7 engage and pacify No. two bevel gears 8 in mounting post 3, a transmission on the axle of No. two bevel gears 8 and on the axle of motor 4 Mechanism 9.In this way, a transmission mechanism 9 is tape handler, and motor 4 is by power by passing through a transmission Mechanism 9 is transferred on a bevel gear 7, and a bevel gear 7 and No. two bevel gears 8 engage, and then is caused and No. two phases of bevel gear 8 Grinding wheel 5 even carries out rotary-grinding, realizes and plate surface is processed, and structure design is compact, and power transmission process is steady.
The reciprocally swinging mechanism includes the major axis 10, the swing rod 11 being fixed on major axis 10, hinge being connected with motor 4 The sliding sleeve 12 that is connected on swing rod 11, one end are hinged on the top of mounting post 3 and the other end is connected with the stock 14 and arc of arc-shaped gear 13 Shape tooth 13 is engaged and installed in a gear 15, No. two teeth installed in the left side upper end of L-type supporting plate 2 of the lower end of L-type supporting plate 2 Wheel 16, the rack 17 that engages and be connected on the right side of fixed station 6 with No. two gears 16, on the axle of No. two gears 16 and No. two transmission mechanisms 18 on the axle of a number gear 15, the stock 14 is slidably mounted on sliding sleeve 12.In this way, by It is hinged in the one end of stock 14 in mounting post 3 and the other end is slidably mounted on swing rod 11, therefore, after motor 4 starts, pendulum Bar 11 rotates to drive stock 14 with carrying out the arc-shaped gear 13 on reciprocally swinging, stock 14 on the pin joint in mounting post 3 Engage, transferred power to by No. two transmission mechanisms 18 on No. two gears 16 with a gear 15, No. two gears 16 with Rack 17 on fixed station 6 is engaged, and final driving fixed station 6 is moved back and forth, and the power needed for motion is passed through into reciprocally swinging machine Structure is connected with motor 4, realizes that No. two transmission mechanisms 18 in higher capacity usage ratio, this programme use V belt translation machine Structure, can realize the power transmission between relatively long distance.
The fixed station 6 is slidably mounted in L-type supporting plate 2, and the bottom of the fixed station 6 is provided with slideway 6a, the L The boss 19 coordinated with slideway 6a is provided with the left side of type supporting plate 2.In this way, realize fixed station 6 in L-type branch Preferably slided on fagging 2.
The clamp system includes being arranged on fixed station 6 and along a symmetrical spiral shell of the length direction of fixed station 6 Rasp bar 20 a, threaded rod 20 is connected with a gripping block 21, a threaded rod 20 close to one end of grinding wheel 5 Portion is provided with No. two threaded rods 22, and the right-hand member of No. two threaded rods 22 is connected with No. two gripping blocks 23.In this way, will Sheet material is placed in a gripping block 21 and No. two gripping blocks 23, by No. two turns in a threaded rod 20 of threaded rod 22, Reduce the distance between a gripping block 21 and No. two gripping blocks 23, realize the clamping of sheet material, by a threaded rod 20 solid Determine the turn in platform 6 and realize the regulation of the distance between sheet material and grinding wheel 5.
The application method to the present invention is further elaborated below:
Sheet material is clamped on clamp system, adjusts suitable between sheet material and grinding wheel 5 by number threaded rod 20 of turn Distance, start motor 4, drive grinding wheel 5 to rotate by transmission device, and by reciprocally swinging mechanism by motor 4 power transmits and changes into reciprocatingly sliding for fixed station 6, is connect while sheet material is moved back and forth on fixed station 6 with grinding wheel 5 Polishing is touched, abundant polishing derusting everywhere on sheet material is realized.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and Improvement is both fallen within claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (5)

1. a kind of simple based plate derusting device, including bottom plate (1), be connected with bottom plate (1) L-type supporting plate (2), be fixed on bottom Mounting post (3) on plate (1), the motor (4) being fixed on bottom plate (1), it is characterised in that:Set on the mounting post (3) Grinding wheel (5) is equipped with, transmission device is connected between the grinding wheel (5) and motor (4), the L-type supporting plate (2) Free end is provided with the fixed station (6) of horizontal reciprocating movement, is provided between the fixed station (6) and motor (4) reciprocal Clamp system is provided with swing mechanism, the fixed station (6).
2. a kind of simple based plate derusting device according to claim 1, it is characterised in that:The transmission device include with Grinding wheel (5) coaxially a connected bevel gear (7), engaged with a bevel gear (7) and be arranged on No. two in mounting post (3) Bevel gear (8), a transmission mechanism (9) on the axle of No. two bevel gears (8) and on the axle of motor (4).
3. a kind of simple based plate derusting device according to claim 1, it is characterised in that:Reciprocally swinging mechanism bag Include the major axis (10) being connected with motor (4), the swing rod (11) being fixed on major axis (10), the cunning being hinged on swing rod (11) Set (12), one end are hinged at the top of mounting post (3) and the other end is connected with the stock (14) and arc-shaped gear (13) of arc-shaped gear (13) Engagement and a gear (15) installed in L-type supporting plate (2) lower end, No. two teeth installed in upper end on the left of L-type supporting plate (2) Wheel (16), engage and be connected on fixed station (6) right side with No. two gears (16) rack (17), installed in No. two gears (16) No. two transmission mechanisms (18) on axle and on the axle of a gear (15), the stock (14) is slidably mounted on sliding sleeve (12) on.
4. a kind of simple based plate derusting device according to claim 1, it is characterised in that:The fixed station (6) is slided In L-type supporting plate (2), the bottom of the fixed station (6) is provided with slideway (6a), the left end of the L-type supporting plate (2) The boss (19) coordinated with slideway (6a) is provided with face.
5. a kind of simple based plate derusting device according to claim 1, it is characterised in that:The clamp system includes setting Put on fixed station (6) and along a symmetrical threaded rod (20) of the length direction of fixed station (6), a threaded rod (20) it is connected with close to one end of grinding wheel (5) inside a gripping block (21), a threaded rod (20) and is provided with No. two Threaded rod (22), the right-hand member of No. two threaded rods (22) is connected with No. two gripping blocks (23).
CN201710481160.6A 2017-06-22 2017-06-22 A kind of plate derusting device Expired - Fee Related CN107097135B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710481160.6A CN107097135B (en) 2017-06-22 2017-06-22 A kind of plate derusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710481160.6A CN107097135B (en) 2017-06-22 2017-06-22 A kind of plate derusting device

Publications (2)

Publication Number Publication Date
CN107097135A true CN107097135A (en) 2017-08-29
CN107097135B CN107097135B (en) 2019-11-29

Family

ID=59663723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710481160.6A Expired - Fee Related CN107097135B (en) 2017-06-22 2017-06-22 A kind of plate derusting device

Country Status (1)

Country Link
CN (1) CN107097135B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107498114A (en) * 2017-08-31 2017-12-22 安徽信息工程学院 Edge sanding burr machine for freeway guardrail
CN111251149A (en) * 2020-01-15 2020-06-09 陈参俊 Electronic components foot cleaning device that polishes
CN112059817A (en) * 2020-08-10 2020-12-11 钟石生 Metal disc grinding device with adjustable

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6468139B1 (en) * 1998-12-01 2002-10-22 Nutool, Inc. Polishing apparatus and method with a refreshing polishing belt and loadable housing
CN201760819U (en) * 2010-04-20 2011-03-16 中国十七冶集团有限公司 Multifunctional steel surface deruster
CN202123420U (en) * 2011-05-20 2012-01-25 台澳铝业(台山)有限公司 Reciprocating rotary swing table device applied to aluminum arc polishing machine
CN204053731U (en) * 2014-09-03 2014-12-31 马同金 A kind of iron sheet rust remover
CN104690626A (en) * 2015-02-26 2015-06-10 北海和思科技有限公司 Multi-station quartz glass grinder
CN106112763A (en) * 2016-08-16 2016-11-16 温州市成尚装饰五金有限公司 A kind of five metals iron staff high efficient mill electro-optical device
CN106181719A (en) * 2016-08-18 2016-12-07 温州市凯宇五金有限公司 A kind of five metals makes of ironwork high-efficient rust-removing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6468139B1 (en) * 1998-12-01 2002-10-22 Nutool, Inc. Polishing apparatus and method with a refreshing polishing belt and loadable housing
CN201760819U (en) * 2010-04-20 2011-03-16 中国十七冶集团有限公司 Multifunctional steel surface deruster
CN202123420U (en) * 2011-05-20 2012-01-25 台澳铝业(台山)有限公司 Reciprocating rotary swing table device applied to aluminum arc polishing machine
CN204053731U (en) * 2014-09-03 2014-12-31 马同金 A kind of iron sheet rust remover
CN104690626A (en) * 2015-02-26 2015-06-10 北海和思科技有限公司 Multi-station quartz glass grinder
CN106112763A (en) * 2016-08-16 2016-11-16 温州市成尚装饰五金有限公司 A kind of five metals iron staff high efficient mill electro-optical device
CN106181719A (en) * 2016-08-18 2016-12-07 温州市凯宇五金有限公司 A kind of five metals makes of ironwork high-efficient rust-removing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107498114A (en) * 2017-08-31 2017-12-22 安徽信息工程学院 Edge sanding burr machine for freeway guardrail
CN111251149A (en) * 2020-01-15 2020-06-09 陈参俊 Electronic components foot cleaning device that polishes
CN111251149B (en) * 2020-01-15 2021-12-07 深圳市顺鼎宏电子有限公司 Electronic components foot cleaning device that polishes
CN112059817A (en) * 2020-08-10 2020-12-11 钟石生 Metal disc grinding device with adjustable
CN112059817B (en) * 2020-08-10 2022-08-19 莒县铭顺铝材有限公司 Metal disc grinding device with adjustable

Also Published As

Publication number Publication date
CN107097135B (en) 2019-11-29

Similar Documents

Publication Publication Date Title
CN108673318B (en) Efficient rust removing device for surface of steel plate for machining
CN206855211U (en) A kind of multi freedom degree mechanical processes sanding apparatus
CN107139055A (en) A kind of multi freedom degree mechanical processes sanding apparatus
CN108312044A (en) A kind of burnishing device
CN107370306A (en) A kind of iron-shell motor cast-aluminum rotor end face deburred device
CN107097135A (en) A kind of simple based plate derusting device
CN210024698U (en) Efficient polishing device for sliding plate
CN107097126A (en) A kind of adjustable burnishing device
CN108067983A (en) A kind of irregular surface strip boards interval sanding apparatus
CN108381312B (en) Hardware circular plate polishing equipment
CN210010788U (en) A single face grinding polisher for prism
CN108214304A (en) The grinding device that a kind of sanding block is vertically movable
CN110465849A (en) Edging device is used in a kind of machining
CN210387950U (en) Laser processing equipment for producing mechanical parts
CN204913572U (en) Horizontal burnishing device is used to solid of revolution polishing production line
CN210189422U (en) Burnishing device is used in hardware fitting processing
CN108908032B (en) Cylindrical grinding machine with uniform grinding
CN216633704U (en) Efficient plate grinder
CN108972270A (en) A kind of multi-purpose type glass polishing machine
CN216066930U (en) Burnishing machine is used in stone material processing that simple operation and work efficiency are high
CN215748474U (en) Metal pipe surface rust cleaning device that polishes
CN210704071U (en) Worm assembly processing equipment
CN212735500U (en) Rust treatment device for processing metal plate products
CN209319443U (en) Automatically grinding equipment
CN209239700U (en) A kind of device facilitating removal glass burr

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
TA01 Transfer of patent application right

Effective date of registration: 20191108

Address after: 318050 No.111, block 4, Batou village, Tongyu street, Luqiao District, Taizhou City, Zhejiang Province

Applicant after: Zhao Junbiao

Address before: 241000 Anhui city of Wuhu province Jiujiang District Wanchun Garden 11 Building 2 unit 502

Applicant before: Wang Jianwen

TA01 Transfer of patent application right
TR01 Transfer of patent right

Effective date of registration: 20210105

Address after: Room 606, 6th floor, comprehensive building, community entrepreneurship Park, Langya Economic Development Zone, Chuzhou City, Anhui Province

Patentee after: Anhui xinjiuya Photoelectric Technology Co.,Ltd.

Address before: No. 111, area 4, Batou village, Tongyu street, Luqiao District, Taizhou City, Zhejiang Province

Patentee before: Zhao Junbiao

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191129

Termination date: 20210622

CF01 Termination of patent right due to non-payment of annual fee