CN214769236U - Strip steel cutting device - Google Patents
Strip steel cutting device Download PDFInfo
- Publication number
- CN214769236U CN214769236U CN202120097224.4U CN202120097224U CN214769236U CN 214769236 U CN214769236 U CN 214769236U CN 202120097224 U CN202120097224 U CN 202120097224U CN 214769236 U CN214769236 U CN 214769236U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- bearing plate
- box body
- strip steel
- cutting device
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 73
- 239000010959 steel Substances 0.000 title claims abstract description 73
- 238000005520 cutting process Methods 0.000 title claims abstract description 34
- 238000004080 punching Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 3
- 239000007858 starting material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Shearing Machines (AREA)
Abstract
The utility model discloses a strip steel cutting device, which comprises a box body, wherein a feed opening is arranged at the top of the box body, a through hole is arranged at the bottom of the box body, the outer wall of the box body is fixedly connected with a frame, the top of the frame is fixedly connected with a hydraulic cylinder, a mounting plate is fixedly connected with the bottom movable end of the hydraulic cylinder, a punching cutter is fixedly connected with the bottom center of the mounting plate, two pressing mechanisms are symmetrically arranged at the two sides of the bottom of the mounting plate, which are positioned on the punching cutter, and two slide rails are fixedly connected with the two sides of the top of the box body, which are positioned on the feed opening; the utility model discloses in, starter motor can drive the bearing plate and remove along the guide rail, makes the bearing plate align with the die cutter, later places the tip of belted steel on the bearing plate to it is fixed to start the electro-magnet to adsorb belted steel, starts the pneumatic cylinder and can utilize the die cutter to cut off the tip of belted steel, and the belted steel that downcuts will directly fall into by the feed opening and connect the magazine, and it is more convenient to use.
Description
Technical Field
The utility model relates to a galvanized pipe processing technology field especially relates to a belted steel cutting device.
Background
The strip steel is a narrow and long steel plate produced by various steel rolling enterprises in order to meet the requirements of different industrial departments on industrial production of various types of metal or mechanical products. The length of the strip steel is slightly different according to the size of each coil, the strip steel is a common raw material for manufacturing galvanized pipes, when one coil of strip steel is used up and then a next coil of strip steel is replaced, the tail end of the used strip steel and the head end of the next coil of strip steel need to be cut off and then welded, and therefore the processing continuity is guaranteed.
The existing strip steel cutting device is used for cutting off the strip steel, most of cut strip steel end parts are reserved on a processing table and need to be manually taken down by workers, otherwise, the next cutting operation cannot be carried out, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a belted steel cutting device to solve the problem that proposes among the above-mentioned background art.
The utility model discloses a can realize through following technical scheme:
the utility model provides a belted steel cutting device, includes the box, the feed opening has been seted up at the top of box, the through-hole has been seted up to the bottom of box, the outer wall fixedly connected with frame of box, the top fixedly connected with pneumatic cylinder of frame, the bottom movable end fixedly connected with mounting panel of pneumatic cylinder, the bottom center fixedly connected with die cutter of department of mounting panel, the bilateral symmetry that the bottom of mounting panel is located the die cutter is provided with two pushing down mechanisms, the top of box is located two slide rails of the bilateral symmetry fixedly connected with of feed opening, the outer wall sliding connection of slide rail has the spout, two the common fixedly connected with bearing plate in top of spout, the bottom fixedly connected with location strip of bearing plate.
By adopting the technical scheme, the bearing plate is slid by utilizing the matching of the sliding chute and the sliding rail, so that the right side end face of the bearing plate is aligned with the left side cutting edge of the stamping knife, then the head end of the strip steel to be spliced is placed on the bearing plate, the electromagnet is started to adsorb and fix the strip steel, and then the hydraulic cylinder is started, so that the head end of the strip steel can be cut off by utilizing the stamping knife;
similarly, the bearing plate is slid by matching the sliding chute and the sliding rail, so that the left end face of the bearing plate is aligned with the right cutting edge of the stamping knife, then the tail end of the used strip steel is placed on the bearing plate, the electromagnet is started to adsorb and fix the strip steel, and then the hydraulic cylinder is started, so that the stamping knife can be used for cutting off the tail section of the strip steel;
the cut strip steel can directly fall down from the feed opening without being manually taken down by workers, so that the use is more convenient.
Further setting the following steps: the top of the box body is located at two ends of the two sliding rails and is symmetrically and fixedly connected with a first limiting block and a second limiting block, and the spacing distance between the first limiting block and the second limiting block is equal to the sum of twice of the length of the pressure bearing plate and the thickness of the stamping knife.
Through adopting above-mentioned technical scheme, utilize the setting of first stopper and second stopper, when the bearing plate offseted with first stopper, the right side terminal surface of bearing plate aligns with the left side blade of die cutter, when the bearing plate offseted with the second stopper, the left side terminal surface of bearing plate aligns with the right side blade of die cutter to the alignment efficiency with bearing plate and die cutter has been improved.
Further setting the following steps: the lateral wall fixedly connected with motor of box, the axle of motor stretches the fixedly connected with threaded rod, the threaded rod rotates with the inner wall of box to be connected, the outer wall threaded connection of threaded rod has the thread bush, the top of thread bush and the bottom fixed connection of bearing plate.
Through adopting above-mentioned technical scheme, rotate through the starter motor drive threaded rod, the cooperation drive bearing plate of usable threaded rod and thread bush removes to need not workman manually operation bearing plate.
Further setting the following steps: the top of the bearing plate is fixedly connected with a positioning strip at one side of the threaded sleeve.
By adopting the technical scheme, the positioning strip can effectively position the strip steel, so that the two strip steels can be well butted after being cut off.
Further setting the following steps: the mechanism of pushing down includes the clamp plate, two guide arms of the top symmetry fixedly connected with of clamp plate, the sleeve has been cup jointed in the outer wall activity of guide arm, the bottom fixed connection of telescopic top and mounting panel, the top fixedly connected with movable block of guide arm, movable block and telescopic inner wall sliding connection, the top of movable block is provided with the spring.
Through adopting above-mentioned technical scheme, when starting up hydraulic cylinder drive die cutter and cutting off the operation, the clamp plate can be preferred to contact with the belted steel that is located the bearing plate surface to the elasticity that contacts the spring compresses tightly belted steel, thereby cooperation electro-magnet's use further promotes the stability of cutting off in-process belted steel.
Further setting the following steps: the inside of box is located and is provided with the material receiving box under the feed opening, the bottom of material receiving box is provided with a plurality of universal wheels, the lateral wall fixedly connected with of material receiving box pushes away the handle.
Through adopting above-mentioned technical scheme, the material receiving box can be collected the belted steel that falls by the feed opening, and the universal wheel is convenient for remove the material receiving box with pushing away the setting of handle.
Further setting the following steps: the top fixedly connected with a plurality of guide bars of mounting panel, the frame is run through on the top of guide bar, guide bar and frame sliding connection.
Through adopting above-mentioned technical scheme, the stability that the mounting panel removed can effectively be improved in the cooperation of guide bar and frame.
To sum up, the utility model discloses a beneficial technological effect does:
1. the utility model discloses in, starter motor can drive the bearing plate and remove along the guide rail, makes the bearing plate align with the die cutter, later places the tip of belted steel on the bearing plate to it is fixed to start the electro-magnet to adsorb belted steel, starts the pneumatic cylinder and can utilizes the die cutter to cut off to the tip of belted steel, and the belted steel that downcuts will directly fall into by the feed opening and connect the magazine, need not the manual taking off of workman, and it is more convenient to use.
2. The utility model discloses utilize the setting of first stopper and second stopper, when the bearing plate offseted with first stopper, the right side terminal surface of bearing plate aligns with the left side blade of die cutter, when the bearing plate offseted with the second stopper, the left side terminal surface of bearing plate aligns with the right side blade of die cutter to the efficiency of aligning bearing plate and die cutter has been improved.
3. The utility model discloses in, when starting hydraulic cylinder drive die cutter and cutting off the operation, the clamp plate can be preferred with be located the belted steel contact on bearing plate surface to the elasticity that contacts the spring compresses tightly belted steel, thereby the use of cooperation electro-magnet further promotes the stability of cutting off in-process belted steel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the middle threaded rod of the present invention;
fig. 3 is a schematic structural diagram of the middle pressing mechanism of the present invention.
Reference numerals: 1. a box body; 2. a feeding port; 3. a through hole; 4. a frame; 5. a hydraulic cylinder; 6. mounting a plate; 7. a guide bar; 8. punching a cutter; 9. a pressing mechanism; 10. a sleeve; 11. a spring; 12. a movable block; 13. a guide bar; 14. pressing a plate; 15. a slide rail; 16. a chute; 17. a pressure bearing plate; 18. a positioning bar; 19. a first stopper; 20. a second limiting block; 21. an electromagnet; 22. a motor; 23. a threaded rod; 24. a threaded sleeve; 25. a material receiving box; 26. a universal wheel; 27. a pushing handle.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 3, a strip steel cutting device disclosed by the present invention comprises a box body 1, the top of the box body 1 is provided with a feed opening 2, the bottom of the box body 1 is provided with a through hole 3, the outer wall of the box body 1 is fixedly connected with a frame 4, the top of the frame 4 is fixedly connected with a hydraulic cylinder 5, the movable end of the bottom of the hydraulic cylinder 5 is fixedly connected with a mounting plate 6, the center of the bottom of the mounting plate 6 is fixedly connected with a stamping knife 8, two pressing mechanisms 9 are symmetrically arranged at the bottom of the mounting plate 6 and positioned at two sides of the stamping knife 8, two sliding rails 15 are symmetrically and fixedly connected at the top of the box body 1 and positioned at two sides of the feed opening 2, the outer wall sliding connection of slide rail 15 has spout 16, two the common fixedly connected with bearing plate 17 in top of spout 16, the bottom fixedly connected with location strip 18 of bearing plate 17.
The bearing plate 17 is slid by the matching of the sliding chute 16 and the sliding rail 15, so that the right side end face of the bearing plate 17 is aligned with the left side cutting edge of the stamping knife 8, then the head end of the strip steel to be spliced is placed on the bearing plate 17, the electromagnet 21 is started to adsorb and fix the strip steel, and then the hydraulic cylinder 5 is started, so that the head end of the strip steel can be cut off by the stamping knife 8;
similarly, the bearing plate 17 is slid by matching the sliding chute 16 with the sliding rail 15, so that the left end face of the bearing plate 17 is aligned with the right cutting edge of the stamping knife 8, then the tail end of the used strip steel is placed on the bearing plate 17, the electromagnet 21 is started to adsorb and fix the strip steel, and then the hydraulic cylinder 5 is started, so that the tail section of the strip steel can be cut off by using the stamping knife 8;
the cut strip steel can directly fall down from the feed opening 2 without being manually taken down by workers, so that the use is more convenient.
The top of the box body 1 is symmetrically and fixedly connected with a first limiting block 19 and a second limiting block 20 at two ends of the two slide rails 15, and the distance between the first limiting block 19 and the second limiting block 20 is equal to the sum of two times of the length of the pressure bearing plate 17 and the thickness of the die cutter 8.
By means of the arrangement of the first limiting block 19 and the second limiting block 20, when the bearing plate 17 abuts against the first limiting block 19, the right side end face of the bearing plate 17 aligns with the left side cutting edge of the punching cutter 8, and when the bearing plate 17 abuts against the second limiting block 20, the left side end face of the bearing plate 17 aligns with the right side cutting edge of the punching cutter 8, so that the aligning efficiency of the bearing plate 17 and the punching cutter 8 is improved.
The lateral wall fixedly connected with motor 22 of box 1, the axle extension fixedly connected with threaded rod 23 of motor 22, threaded rod 23 rotates with the inner wall of box 1 to be connected, the outer wall threaded connection of threaded rod 23 has thread bush 24, the top of thread bush 24 and the bottom fixed connection of bearing plate 17.
The threaded rod 23 is driven to rotate by starting the motor 22, and the bearing plate 17 can be driven to move by the matching of the threaded rod 23 and the threaded sleeve 24, so that a worker does not need to manually operate the bearing plate 17.
The top of the bearing plate 17 is fixedly connected with a positioning strip 18 at one side of the threaded sleeve 24.
The positioning strip 18 can effectively position the strip steel, thereby ensuring that the two strip steels can be well butted after being cut off.
The pushing mechanism 9 comprises a pressing plate 14, two guide rods 13 are symmetrically and fixedly connected to the top of the pressing plate 14, a sleeve 10 is sleeved on the outer wall of each guide rod 13 in a movable mode, the top end of the sleeve 10 is fixedly connected with the bottom of the mounting plate 6, a movable block 12 is fixedly connected to the top end of each guide rod 13, the movable block 12 is connected with the inner wall of the sleeve 10 in a sliding mode, and a spring 11 is arranged on the top end of the movable block 12.
When the hydraulic cylinder 5 is started to drive the stamping knife 8 to cut off, the pressure plate 14 is preferentially contacted with the strip steel positioned on the surface of the pressure bearing plate 17, and the elasticity of the contact spring 11 is used for pressing the strip steel, so that the stability of the strip steel in the cutting process is further improved by matching with the use of the electromagnet 21.
The inside of box 1 is located feed opening 2 and is provided with material receiving box 25 directly below, the bottom of material receiving box 25 is provided with a plurality of universal wheels 26, the lateral wall fixedly connected with of material receiving box 25 pushes away handle 27.
The receiving box 25 can collect the strip steel falling from the feed opening 2, and the universal wheels 26 and the push handle 27 are arranged to facilitate the movement of the receiving box 25.
The top fixedly connected with of mounting panel 6 has a plurality of guide bars 7, frame 4 is run through on the top of guide bar 7, guide bar 7 and frame 4 sliding connection.
The stability that the mounting panel 6 removed can effectively be improved to the cooperation of guide bar 7 and frame 4.
The utility model discloses a theory of operation and beneficial effect do:
the starting motor 22 drives the bearing plate 17 to move along the slide rail 15, so that the right side end face of the bearing plate 17 is aligned with the left side cutting edge of the stamping knife 8, then the head end of the strip steel to be spliced is placed on the bearing plate 17, the electromagnet 21 is started to adsorb and fix the strip steel, and then the hydraulic cylinder 5 is started, so that the head end of the strip steel can be cut off by using the stamping knife 8;
similarly, the starting motor 22 drives the bearing plate 17 to move along the slide rail 15, so that the left end face of the bearing plate 17 is aligned with the right cutting edge of the stamping knife 8, then the tail end of the used strip steel is placed on the bearing plate 17, the electromagnet 21 is started to adsorb and fix the strip steel, and then the hydraulic cylinder 5 is started, so that the tail section of the strip steel can be cut off by using the stamping knife 8;
the cut strip steel can directly fall down from the feed opening 2 without being manually taken down by workers, so that the use is more convenient.
By means of the arrangement of the first limiting block 19 and the second limiting block 20, when the bearing plate 17 abuts against the first limiting block 19, the right side end face of the bearing plate 17 aligns with the left side cutting edge of the punching cutter 8, and when the bearing plate 17 abuts against the second limiting block 20, the left side end face of the bearing plate 17 aligns with the right side cutting edge of the punching cutter 8, so that the aligning efficiency of the bearing plate 17 and the punching cutter 8 is improved.
When the hydraulic cylinder 5 is started to drive the stamping knife 8 to cut off, the pressure plate 14 is preferentially contacted with the strip steel positioned on the surface of the pressure bearing plate 17, and the elasticity of the contact spring 11 is used for pressing the strip steel, so that the stability of the strip steel in the cutting process is further improved by matching with the use of the electromagnet 21.
The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a belted steel cutting device which characterized in that: comprises a box body (1), a feed opening (2) is arranged at the top of the box body (1), a through hole (3) is arranged at the bottom of the box body (1), a frame (4) is fixedly connected to the outer wall of the box body (1), a hydraulic cylinder (5) is fixedly connected to the top of the frame (4), a mounting plate (6) is fixedly connected to the movable end of the bottom of the hydraulic cylinder (5), a punching knife (8) is fixedly connected to the center of the bottom of the mounting plate (6), two pressing mechanisms (9) are symmetrically arranged at the two sides of the bottom of the mounting plate (6) which is positioned at the punching knife (8), two slide rails (15) are fixedly connected to the top of the box body (1) which is positioned at the two sides of the feed opening (2), a slide groove (16) is slidably connected to the outer wall of the slide rail (15), and a bearing plate (17) is fixedly connected to the top of the two slide grooves (16) together, the bottom of the pressure bearing plate (17) is fixedly connected with a positioning strip (18).
2. The strip steel cutting device according to claim 1, wherein: the top of the box body (1) is located at two ends of the two sliding rails (15) and is symmetrically and fixedly connected with a first limiting block (19) and a second limiting block (20), and the distance between the first limiting block (19) and the second limiting block (20) is equal to the sum of the two times of the length of the bearing plate (17) and the thickness of the punching knife (8).
3. The strip steel cutting device according to claim 1, wherein: the lateral wall fixedly connected with motor (22) of box (1), the axle extension fixedly connected with threaded rod (23) of motor (22), threaded rod (23) are connected with the inner wall rotation of box (1), the outer wall threaded connection of threaded rod (23) has thread bush (24), the top of thread bush (24) and the bottom fixed connection of bearing plate (17).
4. The strip steel cutting device according to claim 1, wherein: the top of the pressure bearing plate (17) is fixedly connected with a positioning strip (18) at one side of the threaded sleeve (24).
5. The strip steel cutting device according to claim 1, wherein: push down mechanism (9) including clamp plate (14), two guide arms (13) of the top symmetry fixedly connected with of clamp plate (14), sleeve (10) have been cup jointed in the outer wall activity of guide arm (13), the top of sleeve (10) and the bottom fixed connection of mounting panel (6), the top fixedly connected with movable block (12) of guide arm (13), the inner wall sliding connection of movable block (12) and sleeve (10), the top of movable block (12) is provided with spring (11).
6. The strip steel cutting device according to claim 1, wherein: the feeding device is characterized in that a material receiving box (25) is arranged in the box body (1) and is located under the feed opening (2), a plurality of universal wheels (26) are arranged at the bottom of the material receiving box (25), and a pushing handle (27) is fixedly connected to the side wall of the material receiving box (25).
7. The strip steel cutting device according to claim 1, wherein: the top fixedly connected with a plurality of guide bars (7) of mounting panel (6), frame (4) is run through on the top of guide bar (7), guide bar (7) and frame (4) sliding connection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120097224.4U CN214769236U (en) | 2021-01-14 | 2021-01-14 | Strip steel cutting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120097224.4U CN214769236U (en) | 2021-01-14 | 2021-01-14 | Strip steel cutting device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN214769236U true CN214769236U (en) | 2021-11-19 |
Family
ID=78747256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120097224.4U Expired - Fee Related CN214769236U (en) | 2021-01-14 | 2021-01-14 | Strip steel cutting device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN214769236U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114918491A (en) * | 2022-07-22 | 2022-08-19 | 山西天宝集团有限公司 | Steel cutting device and method for offshore wind power flange |
CN115805337A (en) * | 2022-12-15 | 2023-03-17 | 湖南尚马世星环保科技有限公司 | A crocodile-type hydraulic shearing machine with feeding stabilizing device |
CN117020531A (en) * | 2023-08-30 | 2023-11-10 | 湖北申田新材料科技有限公司 | Double-metal saw band re-welding device and method |
-
2021
- 2021-01-14 CN CN202120097224.4U patent/CN214769236U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114918491A (en) * | 2022-07-22 | 2022-08-19 | 山西天宝集团有限公司 | Steel cutting device and method for offshore wind power flange |
CN114918491B (en) * | 2022-07-22 | 2022-11-04 | 山西天宝集团有限公司 | Steel cutting device and method for offshore wind power flange |
CN115805337A (en) * | 2022-12-15 | 2023-03-17 | 湖南尚马世星环保科技有限公司 | A crocodile-type hydraulic shearing machine with feeding stabilizing device |
CN115805337B (en) * | 2022-12-15 | 2024-10-25 | 湖南尚马世星环保科技有限公司 | Crocodile type hydraulic shearing machine with feeding stabilizing device |
CN117020531A (en) * | 2023-08-30 | 2023-11-10 | 湖北申田新材料科技有限公司 | Double-metal saw band re-welding device and method |
CN117020531B (en) * | 2023-08-30 | 2024-02-20 | 湖北申田新材料科技有限公司 | Double-metal saw band re-welding device and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN214769236U (en) | Strip steel cutting device | |
CN212071074U (en) | Angle steel processing combined production line | |
CN211614078U (en) | Press machine for stamping plates | |
CN210231736U (en) | Novel aluminum plate saw cuts machine | |
CN110919388B (en) | Angle steel processing joint production line | |
CN112846364A (en) | Cold-rolled strip steel shearing equipment | |
CN114178425B (en) | Workpiece punching machine with automatic discharging function | |
CN215545501U (en) | Cutting equipment is used in aluminum alloy ex-trusions production | |
CN213496103U (en) | Conveying device with clamping mechanism for angle steel tower production | |
CN213378952U (en) | Equipment for automatically producing circular blade | |
CN213591601U (en) | Conveyer of punching press | |
CN213916366U (en) | Automatic continuous plate shearing machine of aluminum plate of feeding | |
CN211993316U (en) | Printing packaging box production is with clear useless cutting device of automation | |
CN213163458U (en) | Push-out type direct-line tool changing high-efficiency cutting machine | |
CN211362584U (en) | Stamping device for PCB automatic board separator die | |
CN214264065U (en) | Plate shearing machine | |
CN2382528Y (en) | Wooden round rod machine | |
CN221817237U (en) | Reinforcing steel bar cutting machine | |
CN220943371U (en) | Steel construction processing plate shearing machine with prevent skew effect | |
CN210547564U (en) | Punching and shearing integrated machine for automobile plate spring | |
CN219426140U (en) | Be applied to steel sheet shearing equipment in processing vehicle | |
CN214263232U (en) | High-precision steel rolling material cutting device | |
CN216989188U (en) | Automatic tail cutting device of high-speed wire rod production line robot | |
CN220461913U (en) | Stamping forming die | |
CN220637938U (en) | Mechanical clamping jaw for workpiece transportation |
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: 20211119 |
|
CF01 | Termination of patent right due to non-payment of annual fee |