CN213970164U - Automatic feeding mechanism for numerical control machining center - Google Patents

Automatic feeding mechanism for numerical control machining center Download PDF

Info

Publication number
CN213970164U
CN213970164U CN202022944539.6U CN202022944539U CN213970164U CN 213970164 U CN213970164 U CN 213970164U CN 202022944539 U CN202022944539 U CN 202022944539U CN 213970164 U CN213970164 U CN 213970164U
Authority
CN
China
Prior art keywords
fixedly connected
box
numerical control
automatic feeding
feeding mechanism
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
CN202022944539.6U
Other languages
Chinese (zh)
Inventor
孙艳丽
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.)
Wuhan Bessel Technology Co ltd
Original Assignee
Wuhan Bessel 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 Wuhan Bessel Technology Co ltd filed Critical Wuhan Bessel Technology Co ltd
Priority to CN202022944539.6U priority Critical patent/CN213970164U/en
Application granted granted Critical
Publication of CN213970164U publication Critical patent/CN213970164U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The utility model discloses an automatic feeding mechanism for numerical control machining center, including the conveying platform, one side fixedly connected with box of conveying platform, the surface of conveying platform is provided with the conveyer belt, and conveyer belt and the mutual parallel arrangement of conveying platform, conveyer belt one side is equipped with the protection box, and protection box fixed connection is on the surface of conveying platform, install the driver in the protection box, the output of driver runs through the protection box and extends to in the conveyer belt. The utility model discloses an automatic feeding mechanism for numerical control machining center sets up the baffle, can be after sending the material to the conveyer belt, cut off the material, also can put the material upright, the subsequent processing of being convenient for sets up the threaded rod, can press from both sides the material out from the framework with the material, place the material on the conveyer belt again, transport it to the processing bench and process, set up the lead screw, can be when the movable block removes, prevent that the movable block can be crooked, lead to the autoloading failure.

Description

Automatic feeding mechanism for numerical control machining center
Technical Field
The utility model relates to an automatic material loading technical field specifically is an automatic feeding mechanism for numerical control machining center.
Background
The numerical control machine tool is a machine tool which uses digital information to realize automatic control, and the machine tool uses the code formed from defined characters, numerals and symbols to write the information related to the machined part (size parameter of relative movement track of workpiece and cutter, technological parameter of cutting machining and various auxiliary operations, etc.) into machining program list according to a certain format, then the control medium is input into the numerical control device, the numerical control device sends out various signals and instructions corresponding to the processing program to carry out automatic processing after analysis and processing, the operation of the numerical control machine is in the control processes of continuous calculation, output, feedback and the like, therefore, the accuracy of the relative position between the cutter and the workpiece is ensured, and the method is an effective way for solving the problems of variable part varieties, small batch, complex shape, high precision and the like and realizing efficient and automatic processing.
At present, current numerical control machine tool adds man-hour, will carry out the material loading earlier, and the material loading is carried out through the manual work mostly to current material loading mode, complex operation, and need the manual work to carry the work piece, has increased workman's the amount of labour, wastes time and energy, has reduced the machining efficiency of lathe, and some lathe carry out the material loading through material loading machinery simultaneously, but current material loading machine does not have the function of carrying out automatic the pendulum to the work piece, subsequent processing of being not convenient for. Therefore, the automatic feeding mechanism for the numerical control machining center is improved.
SUMMERY OF THE UTILITY MODEL
For solving the defect that prior art exists, the utility model provides an automatic feeding mechanism for numerical control machining center.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to an automatic feeding mechanism for a numerical control machining center, which comprises a conveying table, one side of the conveying table is fixedly connected with a box body, the surface of the conveying table is provided with a conveying belt, the conveying belt and the conveying table are arranged in parallel, one side of the conveying belt is provided with a protective box which is fixedly connected with the surface of the conveying table, a driver is arranged in the protective box, the output end of the driver penetrates through the protective box and extends into the conveying belt, the conveying belt is internally provided with a conveying wheel, and the conveying wheel and one end of the driver extending into the conveying belt are fixedly connected, an inner cavity is arranged in the box body, an opening is arranged on one side of the box body close to the conveying table, a fixed block is fixedly connected with one side of the box body close to the conveying table, the fixed block is far away from one side fixedly connected with connecting block of box, one side fixedly connected with mounting box of box is far away from to the connecting block.
As a preferred technical scheme of the utility model, the fixed surface of conveying platform is connected with the mount pad, one side fixedly connected with connecting rod of conveying platform is kept away from to the mount pad, the one end fixedly connected with dead lever of mount pad is kept away from to the connecting rod, the dead lever is close to one side fixedly connected with fixed plate of conveying platform, two install a driving motor between the fixed plate, one of them fixed plate is run through to a driving motor's output shaft, one of them fixed plate's one end fixedly connected with baffle is run through to a driving motor's output shaft.
As a preferred technical scheme of the utility model, install second driving motor in the mounting box, second driving motor's output shaft fixedly connected with threaded rod, the one end that second driving motor was kept away from to the threaded rod runs through the mounting box and extends to in the box through the opening of box, a pot head that the threaded rod extends to in the box is equipped with the bearing, one side fixed connection that the threaded rod was kept away from to the bearing is on the inner wall of box, the surface cover of threaded rod is equipped with the movable block, movable block and threaded rod threaded connection.
As a preferred technical scheme of the utility model, the hydraulic pump is installed at the top of movable block, the both sides fixedly connected with fixed block of hydraulic pump, one side of fixed block is equipped with the through-hole, sliding connection has the lead screw in the through-hole, the one end fixed connection of lead screw is on the inner wall of box, the one end fixed connection that the box inner wall was kept away from to the lead screw is on the connecting block.
As a preferred technical scheme of the utility model, the bottom fixedly connected with hydraulic stem of movable block, the output intercommunication of hydraulic pump is connected with the trachea, the one end intercommunication that the hydraulic pump was kept away from to the trachea is connected on the hydraulic stem, the one end fixedly connected with mechanical clamping jaw of movable block is kept away from to the hydraulic stem.
As a preferred technical scheme of the utility model, one side of box is equipped with the chamber door, the fixed surface of chamber door is connected with the push type handle, the platform is placed to the bottom fixedly connected with of box inner chamber, the fixed surface who places the platform is connected with the framework.
As a preferred technical scheme of the utility model, one side that the box was kept away from to the conveying platform is equipped with elevating gear, elevating gear includes base, mounting panel, electric putter and receiving platform, the surface rotation of base is connected with electric rotating shaft, electric rotating shaft keeps away from the one end rotation of base and is connected with the mounting panel.
As a preferred technical scheme of the utility model, one side fixedly connected with electricity splicing block of electronic pivot is kept away from to the mounting panel, fixedly connected with electric putter in the electricity splicing block, electric putter keeps away from the one end of electricity splicing block and runs through the electricity splicing block, electric putter runs through the one end fixedly connected with receiving platform of electricity splicing block.
The utility model has the advantages that: the automatic feeding mechanism for the numerical control machining center is provided with a partition plate, materials can be separated after being sent to a conveying belt, can be straightened to facilitate subsequent machining, a threaded rod is arranged, the materials can be clamped out of a frame body, then the materials are placed on the conveying belt and conveyed to a machining table for machining, a lead screw is arranged, the moving block can be prevented from being inclined when moving, automatic feeding failure can be prevented, a mechanical clamping jaw is arranged, automatic feeding can be achieved through machinery, the labor amount of workers can be reduced, machining efficiency of a machine tool can be increased conveniently and quickly, a hydraulic pump is arranged, the mechanical clamping jaw can be pressurized, the materials can be clamped, the frame body is arranged, the materials can be placed into the frame body in a unified mode, the materials are clamped and sent to the conveying belt through the mechanical clamping jaw, and rotary feeding is achieved, set up the pivot, can make elevating gear can rotate, with the material from the conveyer belt to the processing bench, set up elevating gear, can put into the receiving platform with the material on, send the processing bench from the receiving platform again, pay-off that can be one prevents that the material is too much to cause the influence to the processing bench.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a perspective view of an automatic feeding mechanism for a numerical control machining center according to the present invention;
fig. 2 is a schematic structural diagram of an automatic feeding mechanism for a numerical control machining center according to the present invention;
fig. 3 is an enlarged view of a lifting device of an automatic feeding mechanism for a numerical control machining center according to the present invention;
fig. 4 is a magnified view of a fixing plate of an automatic feeding mechanism for a numerical control machining center.
In the figure: 1. a transfer table; 2. a box body; 3. a conveyor belt; 4. a protective case; 5. a mounting seat; 6. a connecting rod; 7. a fixing plate; 8. a first drive motor; 9. a partition plate; 10. a second drive motor; 11. a threaded rod; 12. a moving block; 13. a hydraulic pump; 14. a hydraulic lever; 15. a mechanical jaw; 16. a placing table; 17. a frame body; 18. a base; 19. mounting a plate; 20. an electric push rod; 21. a platform is received.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in figures 1-4, the utility model relates to an automatic feeding mechanism for a numerical control machining center, which comprises a conveying table 1, one side of the conveying table 1 is fixedly connected with a box body 2, the surface of the conveying table 1 is provided with a conveyor belt 3, the conveyor belt 3 and the conveying table 1 are arranged in parallel, one side of the conveyor belt 3 is provided with a protective box 4, the protective box 4 is fixedly connected with the surface of the conveying table 1, a driver is arranged in the protective box 4, the output end of the driver penetrates through the protective box 4 and extends into the conveyor belt 3, a transmission wheel is arranged in the conveyor belt 3, one end of the transmission wheel and the driver extending into the conveyor belt 3 is fixedly connected, an inner cavity is arranged in the box body 2, one side of the box body 2 close to the conveying table 1 is provided with an opening, one side of the box body 2 close to the conveying table 1 is fixedly connected with a fixed block, one side of the fixed block far away from the box body 2 is fixedly connected with a connecting block, one side fixedly connected with mounting box of box 2 is kept away from to the connecting block.
Wherein, conveying table 1's fixed surface is connected with mount pad 5, one side fixedly connected with connecting rod 6 of conveying table 1 is kept away from to mount pad 5, the one end fixedly connected with dead lever of mount pad 5 is kept away from to connecting rod 6, the dead lever is close to one side fixedly connected with fixed plate 7 of conveying table 1, install first driving motor 8 between two fixed plates 7, one of them fixed plate 7 is run through to first driving motor 8's output shaft, one end fixedly connected with baffle 9 that one of them fixed plate 7 was run through to first driving motor 8's output shaft, set up baffle 9, can send the material to conveyer belt 3 on the back, cut off the material, also can put the material just, be convenient for subsequent processing.
Wherein, install second driving motor 10 in the mounting box, output shaft fixedly connected with threaded rod 11 of second driving motor 10, the one end that second driving motor 10 was kept away from to threaded rod 11 runs through the mounting box and extends to in box 2 through the opening of box 2, threaded rod 11 extends to the terminal surface cover in the box 2 and is equipped with the bearing, one side fixed connection that threaded rod 11 was kept away from to the bearing is on the inner wall of box 2, threaded rod 11's surface cover is equipped with movable block 12, movable block 12 and threaded rod 11 threaded connection, set up threaded rod 11, can follow the material and press from both sides the material out in the framework 17, place the material on conveyer belt 3 again, transport it and process on the processing platform.
Wherein, hydraulic pump 13 is installed at the top of movable block 12, and hydraulic pump 13's both sides fixedly connected with fixed block, one side of fixed block is equipped with the through-hole, and sliding connection has the lead screw in the through-hole, and the one end fixed connection of lead screw is on the inner wall of box 2, and the one end fixed connection that the inner wall of box 2 was kept away from to the lead screw sets up the lead screw on the connecting block, can prevent that movable block 12 from can be crooked when movable block 12 removes, leads to the autoloading failure.
Wherein, the bottom fixedly connected with hydraulic stem 14 of movable block 12, the output intercommunication of hydraulic pump 13 is connected with the trachea, the one end intercommunication that hydraulic pump 13 was kept away from to the trachea is connected on hydraulic stem 14, the one end fixedly connected with mechanical clamping jaw 15 of movable block 12 is kept away from to hydraulic stem 14, set up mechanical clamping jaw 15, can carry out automatic feeding through machinery, can reduce workman's the amount of labour, convenient and fast increases the machining efficiency of lathe, set up hydraulic pump 13, can carry out the pressure boost to mechanical clamping jaw 15, make it can clip the material.
Wherein, one side of box 2 is equipped with the chamber door, and the fixed surface of chamber door is connected with the push type handle, and the platform 16 is placed to the bottom fixedly connected with of the 2 inner chambers of box, and the fixed surface who places platform 16 is connected with framework 17, sets up framework 17, can put into framework 17 with the material is unified, uses mechanical clamping jaw 15 to clip the material and send to conveyer belt 3 on, rotates the pay-off.
Wherein, one side that box 2 was kept away from to conveying platform 1 is equipped with elevating gear, and elevating gear includes base 18, mounting panel 19, electric putter 20 and receiving platform 21, and the surface rotation of base 18 is connected with electric rotating shaft, and electric rotating shaft keeps away from the one end rotation of base 18 and is connected with mounting panel 19, sets up the pivot, can make elevating gear can rotate, goes up the processing bench with the material from conveyer belt 3.
Wherein, one side fixedly connected with electricity splicing block that mounting panel 19 kept away from electric rotating shaft, fixedly connected with electric putter 20 in the electricity splicing block, electric putter 20 runs through the electricity splicing block in keeping away from the one end of electricity splicing block, and electric putter 20 runs through the one end fixedly connected with receiving platform 21 of electricity splicing block, sets up elevating gear, can put into receiving platform 21 with the material on, send the processing platform to from receiving platform 21 again on, pay-off that can one prevents that the material is too much to cause the influence to the processing platform.
The working principle is as follows: when the device is used for automatic feeding, materials are placed in the frame body 17, the second driving motor 10 is started again, the moving block 12 is moved to the position above the frame body 17, the hydraulic pump 13 is started again, the hydraulic rod 14 can extend out, the mechanical clamping jaw 15 extends into the frame body 17, the materials in the frame body 17 are clamped, the mechanical clamping jaw 15 is arranged, automatic feeding can be carried out through machinery, the labor amount of workers can be reduced, the processing efficiency of a machine tool can be increased conveniently and quickly, the hydraulic pump 13 is arranged, the mechanical clamping jaw 15 can be pressurized, the materials can be clamped, the hydraulic pump 13 is started again, the hydraulic rod 14 retracts, the second driving motor 10 is started again, the moving block 12 is moved to the surface of the conveying belt 3, the mechanical clamping jaw 15 is loosened, the materials are moved on the conveying belt 3, the first driving motor 8 arranged on the surface of the conveying table 1 is started, the partition plate 9 is rotated to the position above the conveying belt 3, set up baffle 9, can cut off the material after on sending the material to conveyer belt 3, also can put the material, subsequent processing of being convenient for can put the material neatly, and the material can be carried elevating gear by conveyer belt 3 on, is carried the processing bench by elevating gear again, processes it.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides an automatic feeding mechanism for numerical control machining center, includes conveying platform (1), its characterized in that, one side fixedly connected with box (2) of conveying platform (1), the surface of conveying platform (1) is provided with conveyer belt (3), and conveyer belt (3) and conveying platform (1) parallel arrangement each other, conveyer belt (3) one side is equipped with protection box (4), and protection box (4) fixed connection is on the surface of conveying platform (1), install the driver in protection box (4), the output of driver runs through protection box (4) and extends to in conveyer belt (3), conveyer belt (3) inside has seted up the transfer gear, and transfer gear and driver extend to the one end fixed connection in conveyer belt (3), be equipped with the inner chamber in box (2), one side that box (2) are close to conveying platform (1) is equipped with the opening, one side fixedly connected with fixed block that box (2) are close to conveying platform (1), one side fixedly connected with connecting block of box (2) is kept away from to the fixed block, one side fixedly connected with mounting box of box (2) is kept away from to the connecting block.
2. The automatic feeding mechanism for the numerical control machining center is characterized in that a mounting seat (5) is fixedly connected to the surface of the conveying table (1), a connecting rod (6) is fixedly connected to one side, far away from the conveying table (1), of the mounting seat (5), a fixing rod is fixedly connected to one end, far away from the mounting seat (5), of the connecting rod (6), a fixing plate (7) is fixedly connected to one side, close to the conveying table (1), of the fixing rod, a first driving motor (8) is installed between the two fixing plates (7), an output shaft of the first driving motor (8) penetrates through one of the fixing plates (7), and a partition plate (9) is fixedly connected to one end, far away from one of the fixing plates (7), of the output shaft of the first driving motor (8).
3. The automatic feeding mechanism for the numerical control machining center according to claim 1, characterized in that a second driving motor (10) is installed in the mounting box, an output shaft of the second driving motor (10) is fixedly connected with a threaded rod (11), one end of the threaded rod (11) far away from the second driving motor (10) penetrates through the mounting box and extends into the box body (2) through an opening of the box body (2), a bearing is sleeved on a surface of one end of the threaded rod (11) extending into the box body (2), one side of the bearing far away from the threaded rod (11) is fixedly connected to the inner wall of the box body (2), a moving block (12) is sleeved on the surface of the threaded rod (11), and the moving block (12) is in threaded connection with the threaded rod (11).
4. The automatic feeding mechanism for the numerical control machining center according to claim 3, characterized in that a hydraulic pump (13) is installed at the top of the moving block (12), fixed blocks are fixedly connected to both sides of the hydraulic pump (13), a through hole is formed in one side of each fixed block, a lead screw is slidably connected in the through hole, one end of the lead screw is fixedly connected to the inner wall of the box body (2), and the end of the lead screw, which is far away from the inner wall of the box body (2), is fixedly connected to the connecting block.
5. The automatic feeding mechanism for the numerical control machining center according to claim 4, characterized in that a hydraulic rod (14) is fixedly connected to the bottom of the moving block (12), an output end of the hydraulic pump (13) is connected to an air pipe in a communicating manner, one end of the air pipe, which is far away from the hydraulic pump (13), is connected to the hydraulic rod (14) in a communicating manner, and one end of the hydraulic rod (14), which is far away from the moving block (12), is fixedly connected to a mechanical clamping jaw (15).
6. The automatic feeding mechanism for the numerical control machining center according to claim 1 is characterized in that a box door is arranged on one side of the box body (2), a pressing type handle is fixedly connected to the surface of the box door, a placing table (16) is fixedly connected to the bottom of an inner cavity of the box body (2), and a frame body (17) is fixedly connected to the surface of the placing table (16).
7. The automatic feeding mechanism for the numerical control machining center is characterized in that a lifting device is arranged on one side, away from the box body (2), of the conveying table (1), the lifting device comprises a base (18), a mounting plate (19), an electric push rod (20) and a receiving platform (21), an electric rotating shaft is rotatably connected to the surface of the base (18), and the mounting plate (19) is rotatably connected to one end, away from the base (18), of the electric rotating shaft.
8. The automatic feeding mechanism for the numerical control machining center is characterized in that an electric connection block is fixedly connected to one side, away from an electric rotating shaft, of the mounting plate (19), an electric push rod (20) is fixedly connected into the electric connection block, one end, away from the electric connection block, of the electric push rod (20) penetrates through the electric connection block, and a receiving platform (21) is fixedly connected to one end, penetrating through the electric connection block, of the electric push rod (20).
CN202022944539.6U 2020-12-10 2020-12-10 Automatic feeding mechanism for numerical control machining center Expired - Fee Related CN213970164U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022944539.6U CN213970164U (en) 2020-12-10 2020-12-10 Automatic feeding mechanism for numerical control machining center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022944539.6U CN213970164U (en) 2020-12-10 2020-12-10 Automatic feeding mechanism for numerical control machining center

Publications (1)

Publication Number Publication Date
CN213970164U true CN213970164U (en) 2021-08-17

Family

ID=77241806

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022944539.6U Expired - Fee Related CN213970164U (en) 2020-12-10 2020-12-10 Automatic feeding mechanism for numerical control machining center

Country Status (1)

Country Link
CN (1) CN213970164U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115418446A (en) * 2022-08-03 2022-12-02 东台丰华炉业有限公司 Workpiece distributing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115418446A (en) * 2022-08-03 2022-12-02 东台丰华炉业有限公司 Workpiece distributing device
CN115418446B (en) * 2022-08-03 2024-04-02 东台丰华炉业有限公司 Workpiece distributing device

Similar Documents

Publication Publication Date Title
CN213970164U (en) Automatic feeding mechanism for numerical control machining center
CN212330288U (en) Automatic saw bit replacing and nut dismounting mechanism
CN213857179U (en) Full-automatic side opening machine of high accuracy
CN211360177U (en) Adjustable sheet metal bending machining device
CN112743159A (en) Rotor multistation pressure equipment
CN218613721U (en) Positioning jig for plastic part assembly
CN218136648U (en) Vertical numerical control machine tool with multiple main shafts
CN217097806U (en) Automatic feeding manipulator
CN217143237U (en) Automatic go up unloading processing lathe
CN215035736U (en) Tool magazine for numerical control polar coordinate high-speed drilling machine tool
CN213135138U (en) Automatic feeding mechanism for numerical control of air conditioner accessory lathe
CN212762340U (en) Luggage rack saw bores processing subassembly
CN211306453U (en) Automatic cutting system
CN108788738B (en) Permanent magnet material pressed compact processing device
CN210824392U (en) Last unloader of carving mills machine
CN213135362U (en) Numerical control linear cutting machine tool for cutting metal materials
CN211162471U (en) Double-head cutting machine
CN214602329U (en) Spline machining equipment
CN218699476U (en) Workpiece cutting device convenient to take and place for numerical control machining
CN220407041U (en) Novel die casting removes full automaton that drapes over one's shoulders
CN219153083U (en) Paper cutter convenient to change cut edge
CN214349987U (en) Horizontal arbitrary angle cutting machine
CN212886425U (en) Automatic feeding device for machining of numerical control machine tool
CN117644237A (en) Quick cutting device of aluminum alloy section bar
CN117381036B (en) Milling equipment for S elbow inner groove

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: 20210817

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