CN212762210U - Rotating device for precision mold production - Google Patents

Rotating device for precision mold production Download PDF

Info

Publication number
CN212762210U
CN212762210U CN202021052639.1U CN202021052639U CN212762210U CN 212762210 U CN212762210 U CN 212762210U CN 202021052639 U CN202021052639 U CN 202021052639U CN 212762210 U CN212762210 U CN 212762210U
Authority
CN
China
Prior art keywords
seat
connecting rod
rod
rotating
fixed 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.)
Expired - Fee Related
Application number
CN202021052639.1U
Other languages
Chinese (zh)
Inventor
刘自修
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.)
Jiaxing Precision Mould Plastic Shenzhen Co ltd
Original Assignee
Jiaxing Precision Mould Plastic Shenzhen 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 Jiaxing Precision Mould Plastic Shenzhen Co ltd filed Critical Jiaxing Precision Mould Plastic Shenzhen Co ltd
Priority to CN202021052639.1U priority Critical patent/CN212762210U/en
Application granted granted Critical
Publication of CN212762210U publication Critical patent/CN212762210U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The utility model is suitable for an accurate mould field provides a rotary device is used in accurate mould production, including protection casing and fixed plate, protection casing and fixed plate pass through support column fixed connection, the protection casing lower part is equipped with the mounting groove, be equipped with elevating gear in the mounting groove, the articulated movable rod of elevating gear top, the articulated fixing base of movable rod, the fixing base top is equipped with first mount pad, be equipped with the rotation axis on the first mount pad, the lifter is connected to the rotation axis top, the lifter runs through the fixed plate setting, the workstation is installed at the lifter top, the workstation both sides are equipped with removes the seat. The rotating device for producing the precise die drives the movable sliding block to move through the movable sleeve, and the height of the die workbench is adjusted; the rotating handle is rotated to drive the shaft lever to rotate, the angle of the die is adjusted, multi-angle processing can be performed, and the use is convenient.

Description

Rotating device for precision mold production
Technical Field
The utility model belongs to accurate mould field specifically is a rotary device is used in accurate mould production.
Background
The mold refers to various molds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods in industrial production, in short, the mold is a tool for manufacturing molded articles, and has a plurality of types, according to the processing object and the processing technique, the die for processing metal, the die for processing nonmetal and powder metallurgy, including plastic dies such as two-color dies, compression molds and extrusion molds, rubber dies and powder metallurgy dies, etc., according to the structural characteristics, the die can be divided into a plane blanking die and a cavity die with space, the die is generally produced in a single piece and in small batches, in a product professional factory in a non-mold professional production enterprise, a mold is used as a part of process equipment, belongs to an auxiliary production process in a basic product production system, is an indispensable component for ensuring basic product production, and realizes the processing of the shape of an article mainly through the change of the physical state of a formed material.
The mould adds man-hour and need fix it, fixes the mould on the machine between the current fixed mode, adds the angle that can't change man-hour, can only process its one side, needs to fix again after the processing is accomplished, influences work efficiency to add man-hour to the mould bottom surface and need manually move the mould upset, take trouble and laboursome very influence the processing progress.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a rotary device is used in production of accurate mould aims at solving the unable problem that makes things convenient for the efficient mould that overturns when processing angle and processing another face of changing of present mould processingequipment.
The embodiment of the utility model provides a realize like this, a rotary device is used in production of precision mould, including protection casing and fixed plate, protection casing and fixed plate pass through support column fixed connection, protection casing lower part is equipped with the mounting groove, be equipped with elevating gear in the mounting groove, elevating gear top hinge movable rod, movable rod hinge fixing base, the fixing base top is equipped with the mount pad; a rotating shaft is arranged on the mounting seat, a driven gear is arranged outside the rotating shaft, a rotating motor is arranged on one side of the rotating shaft, an output shaft of the rotating motor is connected with a driving gear, and the driving gear is meshed with the driven gear; the utility model discloses a protection casing, including rotation axis, lifter, workstation, pivot, bearing, pivot, fixed plate, pivot, fixed plate, pivot.
Preferably, the lifting rod is connected with the center of the workbench, and the movable seats on the two sides of the workbench are symmetrically distributed by taking the lifting rod as a symmetric center.
Preferably, the surface of the workbench is provided with a rubber shock pad, and the surface of the clamping plate is fixedly connected with an anti-skid rubber pad.
Preferably, be equipped with first spout on the fixed plate of removal seat below, first spout with remove seat bottom joint, remove seat and fixed plate sliding connection.
The utility model discloses another aim at of embodiment, clamping device is including the activity chamber, the connecting rod runs through the setting of activity chamber, the connecting rod is located activity intracavity portion and is close to and removes seat one side and install the stopper, install compression spring between stopper and the activity chamber opposite side, the connecting rod is located activity chamber outside one end and installs the baffle.
The utility model discloses another aim at, elevating gear is including the activity slider, the activity slider is located in the second spout, activity slider top is articulated with the movable rod, the articulated first connecting rod in activity slider one side, first connecting rod articulates there is the articulated elements, the articulated second connecting rod of articulated elements opposite side, the articulated rotary mechanism of second connecting rod, rotary mechanism keeps away from second spout one side and is equipped with the slide bar, sliding connection has the sleeve on the slide bar, sleeve and slide bar sliding connection, rack plate is installed to the sleeve both sides, sleeve surface mounting has the handle.
Preferably, rotary mechanism includes the pivot, rotary gear is installed to pivot one end, rotary gear and rack plate meshing, the carousel is installed to the pivot opposite side, be equipped with the dead lever on the carousel, the dead lever is articulated with the second connecting rod.
Preferably, the slide bar is located protection casing bottom center department, the quantity of activity slider, movable rod and rotary mechanism is two and uses the slide bar as central symmetry and distributes.
Aiming at the defects of the prior art, the utility model can realize that the mould can be turned over and the other side of the mould can be processed without disassembly after the mould is fixed by matching the lifting device, the fixed seat, the rotating shaft, the rotating motor and the moving seat, thereby saving the time for disassembling the mould and improving the production efficiency; the mould is tightened through the good elasticity and the restorability of the compression spring, the operation is convenient, the fixing time of the mould is saved, and the production speed of the mould is accelerated.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view illustrating the matching between the movable seat and the first sliding groove according to the embodiment of the present invention;
fig. 3 is a schematic structural view of a clamping device in an embodiment of the present invention;
fig. 4 is a schematic structural view of a lifting device in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a rotating mechanism in an embodiment of the present invention;
in the drawings: 1. a protective housing; 2. a fixing plate; 3. a support pillar; 4. mounting grooves; 5. a lifting device; 501. a movable slide block; 502. a second chute; 503. a first link; 504. an articulation member; 505. a second link; 506. a rotation mechanism; 507. a slide bar; 508. a sleeve; 509. a rack plate; 510. a handle; 511. a rotating shaft; 512. a rotating gear; 513. a turntable; 514. fixing the rod; 6. a movable rod; 7. a fixed seat; 8. a mounting seat; 9. a rotating shaft; 10. a driven gear; 11. a rotating electric machine; 12. a drive gear; 13. a lifting rod; 14. a work table; 15. a movable seat; 16. a shaft lever; 17. a bearing; 18. a splint; 19. rotating the handle; 20. a clamping device; 201. a movable cavity; 202. a limiting block; 203. a compression spring; 204. a baffle plate; 21. a connecting rod; 22. a pillar; 23. an anti-skid rubber pad; 24. a rubber shock pad; 25. a first runner.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
Referring to fig. 1 and 2, a rotating device for producing a precision mold comprises a protective shell 1 and a fixed plate 2, wherein the protective shell 1 and the fixed plate 2 are fixedly connected through a support column 3, an installation groove 4 is formed in the lower portion of the protective shell 1, a lifting device 5 is arranged in the installation groove 4, a movable rod 6 is hinged above the lifting device 5, the movable rod 6 is hinged with a fixed seat 7, an installation seat 8 is arranged above the fixed seat 7, the lifting device 5 can drive the bottom of the movable rod 6 to contract inwards or diffuse outwards to change the height of the movable rod 6 in the vertical direction, and meanwhile, the fixed seat 7 is arranged above the movable rod 6, so that the height of the mold during machining can be adjusted through the operation of the lifting device 5; the mounting base 8 is provided with a rotating shaft 9, a driven gear 10 is mounted outside the rotating shaft 9, a rotating motor 11 is mounted on one side of the rotating shaft 9, an output shaft of the rotating motor 11 is connected with a driving gear 12, the driving gear 12 is meshed with the driven gear 10, when the machining angle of the die needs to be adjusted, the rotating motor 11 is turned on, the rotating motor 11 drives the driving gear 12 to rotate, the synchronous driving gear 12 is meshed with the driven gear 10 to rotate, and the rotation of the die angle on the workbench 14 can be completed; a lifting rod 13 is connected above the rotating shaft 9, the lifting rod 13 is arranged to penetrate through the fixed plate 2, a workbench 14 is installed at the top of the lifting rod 13, moving seats 15 are arranged on two sides of the workbench 14, a horizontally placed shaft rod 16 is installed in the middle of the moving seat 15, a bearing 17 is installed at the joint of the shaft rod 16 and the moving seat 15, a clamping plate 18 is installed at one end, close to the center of the workbench 14, of the shaft rod 16, a rotating handle 19 is installed at the other end of the shaft rod 16, a clamping device 20 is arranged on the fixed plate 2, the clamping device 20 is fixedly connected with the moving seat 15 through a connecting rod 21, the mold is quickly fixed through the clamping device 20, the operation is convenient, the working efficiency is improved, when the other surface of the mold is required to be machined, the lifting device 5 is controlled to drive the workbench 14 to descend to a, the rotary handle 19 drives the clamping plate 18 to turn to the other side, then the lifting device 5 is controlled again, the workbench 14 is lifted to a proper position, the other side of the die can be machined, the time for disassembling and turning the die is saved, and the production efficiency is improved.
As an embodiment of the utility model, lifter 13 is connected with 14 center departments of workstation, 14 both sides of workstation are removed seat 15 and are used lifter 13 to set up beautifully as the symmetric center symmetric distribution for the symmetry, let the precision mold pressed from both sides more steadily of getting simultaneously.
As an embodiment of the present invention, the surface of the working table 14 is provided with a rubber shock pad 24, and the rubber shock pad 24 plays a role of buffering and damping for the working table 14 during processing, so as to protect the working table 14 and avoid damage to the precision mold caused by impact force. The surface of the clamping plate 18 is fixedly connected with an anti-skid rubber pad 23, and the anti-skid rubber pad 23 enables the clamping plate 18 to clamp the mould more firmly, so that the mould is prevented from sliding down from the inside of the clamping plate 18 when the mould is changed.
As a preferred embodiment of the utility model, be equipped with first spout 25 on the fixed plate 2 of removal seat 15 below, first spout 25 with remove seat 15 bottom joint, remove seat 15 and fixed plate 2 sliding connection, the purpose of joint is when preventing that the mould from trading the face because the mould loses the support of workstation 14, causes the problem of removing seat 15 skew.
Please refer to fig. 3, in an embodiment of the present invention, the clamping device 20 includes a movable cavity 201, the connecting rod 21 runs through the movable cavity 201, the connecting rod 21 is located the outside one end of the movable cavity 201 and is installed with a baffle 204, it is convenient to control two distances between the movable seats 15 by pulling the baffle 204, the connecting rod 21 is located the movable cavity 201 and is close to the movable seat 15 and is installed with a stopper 202, the compression spring 203 is extruded when the connecting rod 21 is conveniently pulled, the compression spring 203 is installed between the stopper 202 and the movable cavity 201 opposite side, the mold is tightened by the good elasticity and the restorability of the compression spring 203, the operation is convenient, and the mold fixing time is saved.
Referring to fig. 4, in an embodiment of the present invention, the lifting device 5 includes a movable slider 501, the movable slider 501 is disposed in a second sliding slot 502, the upper portion of the movable slider 501 is hinged to a movable rod 6, one side of the movable slider 501 is hinged to a first connecting rod 503, the first connecting rod 503 is hinged to a hinge 504, the other side of the hinge 504 is hinged to a second connecting rod 505, the second connecting rod 505 is hinged to a rotating mechanism 506, one side of the rotating mechanism 506 away from the second sliding slot 502 is provided with a sliding rod 507, the sliding rod 507 is connected to a sleeve 508 in a sliding manner, the sleeve 508 is connected to the sliding rod 507 in a sliding manner, rack plates 509 are mounted on two sides of the sleeve 508, a handle 510 is mounted on a surface of the sleeve 508, when the mold height needs to be adjusted, the handle 510 is pushed to ascend or descend to drive the sleeve 508 to slide on the sliding rod 507, the rotating mechanism 506 is driven to rotate, and at the same time, the rotating mechanism 506 drives the second connecting rod 505, the first connecting rod 503 and the hinge 504 to contract inwards or expand outwards, and at the same time, the first connecting rod 203 drives the movable slider 501 to move, and synchronously drives the fixed base 7 to raise or lower.
Referring to fig. 5, as a preferred embodiment of the present invention, the rotating mechanism 506 includes a rotating shaft 511, a rotating gear 512 is installed at one end of the rotating shaft 511, the rotating gear 512 is engaged with a rack plate 509, a rotating disc 513 is installed at the other side of the rotating shaft 511, a fixing rod 514 is installed on the rotating disc 513, the fixing rod 514 is hinged to the second connecting rod 505, the rack plate 509 moves up and down to rotate the rotating gear 512, the rotating gear 512 rotates to drive the rotating shaft 511 to rotate, and the rotating disc 513 is synchronously driven to rotate.
As a preferred embodiment of the present invention, the sliding rod 507 is located at the center of the bottom of the protection casing 1, the number of the movable sliding blocks 501, the movable rods 6 and the rotating mechanism 506 is two and the sliding rod 507 is used as the central symmetrical distribution, so that the fixed seat 7 is more stable in rising or lowering process, and the stability of the device is increased.
In summary, the rotating device for producing the precision mold can rotate the mold and process the other surface of the mold without disassembly after the mold is fixed by matching the lifting device 5, the fixed seat 7, the rotating shaft 9, the rotating motor 11 and the moving seat 15, so that the time for disassembling the mold is saved, and the production efficiency is improved; the die is tightened through the good elasticity and the restoring capacity of the compression spring 203, the operation is convenient, the die fixing time is saved, and the die production speed is accelerated.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The utility model provides a rotary device is used in production of precision mold, includes protection casing (1) and fixed plate (2), its characterized in that: the protective shell (1) and the fixed plate (2) are fixedly connected through a support column (3), a mounting groove (4) is formed in the lower portion of the protective shell (1), a lifting device (5) is arranged in the mounting groove (4), a movable rod (6) is hinged above the lifting device (5), the movable rod (6) is hinged with a fixed seat (7), and a mounting seat (8) is arranged above the fixed seat (7); a rotating shaft (9) is arranged on the mounting seat (8), a driven gear (10) is mounted outside the rotating shaft (9), a rotating motor (11) is mounted on one side of the rotating shaft (9), an output shaft of the rotating motor (11) is connected with a driving gear (12), and the driving gear (12) is meshed with the driven gear (10); lifting rod (13) is connected to rotation axis (9) top, lifting rod (13) run through fixed plate (2) and set up, workstation (14) are installed at lifting rod (13) top, workstation (14) both sides are equipped with and remove seat (15), remove seat (15) mid-mounting have the axostylus axostyle (16) that the level was placed, bearing (17) are installed with removing seat (15) junction in axostylus axostyle (16), splint (18) are installed near workstation (14) center one end in axostylus axostyle (16), twist grip (19) are installed to the other end of axostylus axostyle (16), be equipped with clamping device (20) on fixed plate (2), clamping device (20) and removal seat (15) are through connecting rod (21) fixed connection, protection casing (1) bottom both sides fixedly connected with pillar (22).
2. The rotating apparatus for precision mold production according to claim 1, characterized in that: the lifting rod (13) is connected with the center of the workbench (14), and the movable seats (15) on the two sides of the workbench (14) are symmetrically distributed by taking the lifting rod (13) as a symmetric center.
3. The rotating apparatus for precision mold production according to claim 1, characterized in that: the surface of the workbench (14) is provided with a rubber shock pad (24), and the surface of the clamping plate (18) is fixedly connected with an anti-skidding rubber pad (23).
4. The rotating apparatus for precision mold production according to claim 1, characterized in that: be equipped with first spout (25) on fixed plate (2) of removal seat (15) below, first spout (25) with remove seat (15) bottom joint, remove seat (15) and fixed plate (2) sliding connection.
5. The rotating apparatus for precision mold production according to claim 1, characterized in that: clamping device (20) are including activity chamber (201), connecting rod (21) run through activity chamber (201) and set up, connecting rod (21) are located activity chamber (201) inside and are close to and remove seat (15) one side and install stopper (202), install compression spring (203) between stopper (202) and activity chamber (201) opposite side, connecting rod (21) are located activity chamber (201) outside one end and install baffle (204).
6. The rotating apparatus for precision mold production according to claim 1, characterized in that: elevating gear (5) are including activity slider (501), in second spout (502) is located to activity slider (501), activity slider (501) top is articulated with movable rod (6), activity slider (501) one side is articulated first connecting rod (503), first connecting rod (503) articulate has articulated piece (504), articulated piece (504) opposite side articulates second connecting rod (505), articulated rotary mechanism (506) of second connecting rod (505), rotary mechanism (506) are kept away from second spout (502) one side and are equipped with slide bar (507), sliding connection has sleeve (508) on slide bar (507), sleeve (508) and slide bar (507) sliding connection, rack plate (509) are installed to sleeve (508) both sides, sleeve (508) surface mounting has handle (510).
7. The rotating apparatus for precision mold production according to claim 6, characterized in that: rotary mechanism (506) is including pivot (511), rotary gear (512) are installed to pivot (511) one end, rotary gear (512) and rack plate (509) meshing, carousel (513) are installed to pivot (511) opposite side, be equipped with dead lever (514) on carousel (513), dead lever (514) are articulated with second connecting rod (505).
8. The rotating apparatus for precision mold production according to claim 6, characterized in that: the sliding rod (507) is positioned at the center of the bottom of the protective shell (1), and the number of the movable sliding blocks (501), the movable rods (6) and the rotating mechanisms (506) is two and the sliding rods (507) are symmetrically distributed by taking the sliding rods (507) as centers.
CN202021052639.1U 2020-06-10 2020-06-10 Rotating device for precision mold production Expired - Fee Related CN212762210U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021052639.1U CN212762210U (en) 2020-06-10 2020-06-10 Rotating device for precision mold production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021052639.1U CN212762210U (en) 2020-06-10 2020-06-10 Rotating device for precision mold production

Publications (1)

Publication Number Publication Date
CN212762210U true CN212762210U (en) 2021-03-23

Family

ID=75073090

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021052639.1U Expired - Fee Related CN212762210U (en) 2020-06-10 2020-06-10 Rotating device for precision mold production

Country Status (1)

Country Link
CN (1) CN212762210U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113334279A (en) * 2021-06-15 2021-09-03 江苏中关赛恩汽车电机研究院有限公司 Clamping tool for motor end cover of new energy automobile
CN113498265A (en) * 2021-07-13 2021-10-12 深圳市迪联思科技有限公司 Supporting device for fixing electronic circuit board in production
CN113681409A (en) * 2021-08-31 2021-11-23 浙江天能精工科技有限公司 Clamping device for polishing battery case mold and control method thereof
CN113803593A (en) * 2021-10-08 2021-12-17 安徽誉望之子科技有限公司 Electromechanical device processing is with regulation and control structure
CN114290256A (en) * 2021-12-15 2022-04-08 合肥德通电驱动系统有限公司 Fixing mechanism for processing accelerator
CN115635116A (en) * 2022-12-23 2023-01-24 江苏东方成套设备制造集团有限公司 Boring machine fixture tool
CN116276349A (en) * 2023-05-15 2023-06-23 盐城大丰中信机械制造有限公司 Multi-angle grinding and polishing equipment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113334279A (en) * 2021-06-15 2021-09-03 江苏中关赛恩汽车电机研究院有限公司 Clamping tool for motor end cover of new energy automobile
CN113334279B (en) * 2021-06-15 2021-12-10 江苏中关赛恩汽车电机研究院有限公司 Clamping tool for motor end cover of new energy automobile
CN113498265A (en) * 2021-07-13 2021-10-12 深圳市迪联思科技有限公司 Supporting device for fixing electronic circuit board in production
CN113681409A (en) * 2021-08-31 2021-11-23 浙江天能精工科技有限公司 Clamping device for polishing battery case mold and control method thereof
CN113803593A (en) * 2021-10-08 2021-12-17 安徽誉望之子科技有限公司 Electromechanical device processing is with regulation and control structure
CN113803593B (en) * 2021-10-08 2023-12-22 安徽九工电子设备有限公司 Regulation and control structure for machining electromechanical equipment
CN114290256A (en) * 2021-12-15 2022-04-08 合肥德通电驱动系统有限公司 Fixing mechanism for processing accelerator
CN115635116A (en) * 2022-12-23 2023-01-24 江苏东方成套设备制造集团有限公司 Boring machine fixture tool
CN116276349A (en) * 2023-05-15 2023-06-23 盐城大丰中信机械制造有限公司 Multi-angle grinding and polishing equipment
CN116276349B (en) * 2023-05-15 2023-08-04 盐城大丰中信机械制造有限公司 Multi-angle grinding and polishing equipment

Similar Documents

Publication Publication Date Title
CN212762210U (en) Rotating device for precision mold production
CN207900025U (en) A kind of automobile production diel
CN211840951U (en) Automobile parts trimming and shaping mould
CN213972116U (en) Plastic mold core-pulling device
CN212822294U (en) Mould convenient to unload
CN208497434U (en) One kind is convenient for de- mould
CN211221058U (en) Novel mould of rubber connector
CN112264525A (en) Turnover type metal processing die
CN220718920U (en) Surface treatment device for manufacturing shell mould
CN215144891U (en) Clamping table for mold machining
CN216423164U (en) Piece taking device for production of precision die
CN217372275U (en) Multifunctional mould maintenance platform
CN218252860U (en) Sprue removing device
CN216187280U (en) Mould transfer device is used in production of accurate mould
CN216758941U (en) Operation platform for mold production
CN214292446U (en) Mould grinding device convenient to adjust
CN218110113U (en) Clamping device for auto-parts mould
CN216068826U (en) Leak protection type demolding device
CN210850978U (en) Automatic mold opening device
CN213054707U (en) Rotating device for precision mold production
CN217832753U (en) Machining center numerical control rotary clamping device for die manufacturing
CN112743170B (en) High-precision adjustable die tapping device
CN219903509U (en) Die clamping table capable of being operated positively and negatively simultaneously
CN217798505U (en) Chassis mold processing with fixed knot constructs
CN217122710U (en) Edging device is used in mould production preparation

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210323