CN220698384U - Circular sawing machine for positioning and processing multi-size aluminum profiles - Google Patents

Circular sawing machine for positioning and processing multi-size aluminum profiles Download PDF

Info

Publication number
CN220698384U
CN220698384U CN202322324707.5U CN202322324707U CN220698384U CN 220698384 U CN220698384 U CN 220698384U CN 202322324707 U CN202322324707 U CN 202322324707U CN 220698384 U CN220698384 U CN 220698384U
Authority
CN
China
Prior art keywords
fixedly connected
base
wall
scraps
nut sleeve
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.)
Active
Application number
CN202322324707.5U
Other languages
Chinese (zh)
Inventor
王军
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.)
Jiangsu Zhicheng Power Equipment Co ltd
Original Assignee
Jiangsu Zhicheng Power Equipment 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 Jiangsu Zhicheng Power Equipment Co ltd filed Critical Jiangsu Zhicheng Power Equipment Co ltd
Priority to CN202322324707.5U priority Critical patent/CN220698384U/en
Application granted granted Critical
Publication of CN220698384U publication Critical patent/CN220698384U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Sawing (AREA)

Abstract

The utility model discloses a circular sawing machine for positioning and processing multi-size aluminum profiles, which relates to the technical field of circular sawing machines and comprises a base, a supporting rod, a top plate, an exhaust fan fixedly arranged on the inner wall of the base, a filter tank arranged in the base, and a filter layer fixedly connected with the inner wall of the filter tank. According to the utility model, through the cooperation of the first screw nut sleeve and the scraping plate, when the aluminum material is cut and segmented, a great amount of scraps are generated, at the moment, a user can work by opening the exhaust fan, so that the air inlet groove can collect scraps generated by cutting in a concentrated manner, then the scraps are isolated and blocked by the filtering layer, when a great amount of scraps are accumulated on the surface of the filtering layer, the user opens the first motor to work, so that the scraping plate can push the scraps into the recovery vehicle in the recovery groove in a concentrated manner, the equipment can collect the scraps in a concentrated manner conveniently, damage to human bodies and the environment caused by the scraps in a drifting manner can be prevented, and meanwhile, the load of collecting the scraps by the user can be lightened.

Description

Circular sawing machine for positioning and processing multi-size aluminum profiles
Technical Field
The utility model relates to the technical field of circular sawing machines, in particular to a circular sawing machine for positioning and processing multi-size aluminum profiles.
Background
Circular sawing machines can be classified into metal circular sawing machines and woodworking circular sawing machines according to the processed products. The feeding mode is divided into vertical, horizontal and scissors type. According to the control mode, the automatic cutting machine can be divided into manual, semi-automatic and full-automatic, and metal plates and the like are often cut by a circular sawing machine during cutting.
As known from patent application number CN202222989094.2, the utility model discloses a metal cutting circular sawing machine, which comprises a fixing mechanism for fixing a metal pipe and a cutting mechanism for cutting the metal pipe, wherein the cutting mechanism is arranged on the side surface of the fixing mechanism, and also comprises a positioning mechanism for positioning one end of the metal pipe, and the positioning mechanism is arranged on one side of the cutting mechanism far away from the fixing mechanism. According to the utility model, the positioning mechanism is arranged, the position of the positioning plate is adjusted according to the cutting requirement, the fixed bolt is loosened, the movable seat is controlled to move along the scale rod, the positioning plate moves along with the scale rod, the fixed bolt is screwed after the positioning plate is adjusted to the corresponding position, and one end of the metal tube is contacted with the positioning plate during cutting, so that the cutting length of the metal tube can be kept consistent, and the cutting precision is effectively improved.
Since a large amount of scraps are generated when the metal is cut, when the metal is cut by the circular saw blade, the scraps are thrown outwards by the centrifugal force generated by the circular sawing machine, so that a large amount of scraps can fly in the air, and the scraps are harmful to human bodies and the environment.
Disclosure of Invention
The utility model aims to provide a circular sawing machine for positioning and processing multi-size aluminum profiles, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a circular sawing machine is used in multi-dimension aluminium alloy location processing, includes the base, the bracing piece, fixed connection in around the base top, the roof is located the base top, just the roof passes through bracing piece and base fixed connection, base inner wall fixed mounting has the air exhauster, the filter tank has been seted up to the inside filter tank that has seted up of base, the air inlet groove that is linked together has been seted up at the filter tank inner wall fixedly connected with filter tank, the logical groove that is linked together with the filter tank has been seted up to the inside intercommunication of base, the recovery tank that is linked together with logical groove has been seted up to the inside base, base inner wall fixed mounting has first motor, first motor output fixedly connected with ball screw, the outside cover of first ball screw is equipped with the first lead screw nut sleeve of looks adaptation, two scrapers that are linked together with logical groove of first lead screw nut sleeve outer wall symmetry fixedly connected with, the standing groove has been seted up to inside the base inner wall fixedly connected with baffle that is linked together with the standing groove.
Further, roof bottom fixedly connected with first cylinder, first cylinder output fixedly connected with mounting panel, mounting panel inner wall fixedly mounted has the second motor, first motor output fixedly connected with cutting wheel, the mounting panel shape is the U type, can block the piece that throws away because of centrifugal force when cutting the cutting wheel through the setting of mounting panel, and then make things convenient for follow-up air exhauster to collect it.
Further, two sliders of first screw-nut sleeve outer wall symmetry fixedly connected with, the spout with slider looks adaptation has been seted up to the inside base, first screw-nut sleeve passes through slider and spout sliding connection, scraper blade outer wall size and filter tank inner wall size looks adaptation, scraper blade outer wall size and recovery tank inner wall size looks adaptation, recovery tank inner wall sliding connection has the recovery car, uses through the cooperation of slider and spout for first screw-nut sleeve can have stability when removing.
Further, air-out pipe of air exhauster one end fixedly connected with looks adaptation, it is outside to go out the tuber pipe and extend to the base, the standing groove shape is annular, uses the cooperation through annular standing groove and baffle and is convenient for protect first ball screw, and then can prevent the piece contact first ball screw, and then prolongs first ball screw's life.
Further, base inner wall fixed mounting has the third motor, third motor output fixedly connected with second ball screw, the outside cover of second ball screw is equipped with the second lead screw nut sleeve of looks adaptation, second lead screw nut sleeve outer wall fixedly connected with stripper plate, base inner wall fixedly connected with telescopic link, telescopic link removes end and stripper plate fixed connection, can guarantee the stability when the stripper plate is used through the telescopic link, and the user is convenient for follow-up change the cutting length size of aluminum product through adjusting the position of stripper plate simultaneously.
Further, roof bottom fixedly connected with second cylinder, second cylinder output fixedly connected with installation piece, installation piece bottom equidistance rotation is connected with a plurality of extrusion wheels, through extrusion wheel extrusion contact aluminum product surface, can prevent the perk again when the aluminum product cuts under the circumstances that does not influence the aluminum product normal movement, and then the equipment of being convenient for carries out cutting process to the aluminum product.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the cooperation of the first screw nut sleeve and the scraping plate, when the aluminum material is cut and segmented, a great amount of scraps are generated, at the moment, a user can work by opening the exhaust fan, so that the air inlet groove can collect scraps generated by cutting in a concentrated manner, then the scraps are isolated and blocked by the filtering layer, when a great amount of scraps are accumulated on the surface of the filtering layer, the user opens the first motor to work, so that the scraping plate can push the scraps into the recovery vehicle in the recovery groove in a concentrated manner, the equipment can collect the scraps in a concentrated manner conveniently, damage to human bodies and the environment caused by the scraps in a drifting manner can be prevented, and meanwhile, the load of collecting the scraps by the user can be lightened.
2. According to the utility model, through the cooperation of the mounting block and the extrusion wheel, when the aluminum profile is cut, the user can adjust the height of the extrusion wheel according to the size of the aluminum profile, and the user opens the second cylinder to drive the mounting block and the extrusion wheel to move, so that the extrusion wheel can be in extrusion contact with the aluminum profile, further the aluminum profile can be prevented from tilting during cutting and sectioning, and further the quality of subsequent cutting can be ensured.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of the overall appearance structure of the present utility model;
FIG. 2 is a schematic view of the whole cross-sectional structure of the present utility model;
FIG. 3 is an enlarged view of the structure at A of FIG. 2;
fig. 4 is a schematic cross-sectional view of a first lead screw nut sleeve according to the present utility model.
In the figure: 1. a base; 2. a support rod; 3. a top plate; 4. an exhaust fan; 5. a filter tank; 6. a filter layer; 7. an air inlet groove; 8. a through groove; 9. a recovery tank; 10. a first motor; 11. a first ball screw; 12. a first lead screw nut sleeve; 13. a scraper; 14. a placement groove; 15. a baffle; 16. a first cylinder; 17. a mounting plate; 18. a second motor; 19. a cutting wheel; 20. a slide block; 21. a chute; 22. a third motor; 23. a second ball screw; 24. a second lead screw nut sleeve; 25. an extrusion plate; 26. a telescopic rod; 27. a second cylinder; 28. a mounting block; 29. a pressing wheel; 30. and (5) an air outlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides a circular sawing machine for positioning and processing multi-size aluminum profiles, which comprises a base 1, a supporting rod 2, a top plate 3, a suction fan 4, an air outlet pipe 30, a filter layer 6, an air inlet groove 7, a recovery groove 9, a first motor 10, a first ball screw 11, and a first ball screw 11, wherein the supporting rod 2 is fixedly connected to the periphery of the top of the base 1, the top plate 3 is arranged at the top of the base 1, the top plate 3 is fixedly connected with the base 1 through the supporting rod 2, the suction fan 4 is fixedly arranged on the inner wall of the base 1, one end of the suction fan 4 is fixedly connected with the air outlet pipe 30, the air outlet pipe 30 extends to the outside of the base 1, the filter groove 5 is arranged in a ring shape, the filter groove 5 is fixedly connected with the filter layer 6, the top of the filter groove 5 is provided with an air inlet groove 7, the recovery groove 9 is arranged in the base 1 and is communicated with the filter groove 5, the first motor 10 is fixedly arranged on the inner wall of the base 1, the output end of the first motor 10 is fixedly connected with the first ball screw 11, the first ball screw 11 is externally sleeved with a first screw nut sleeve 12 which is matched with the first screw nut sleeve, the outer wall of the first screw nut sleeve 12 is symmetrically and fixedly connected with two sliding blocks 20, a sliding groove 21 which is matched with the sliding blocks 20 is formed in the base 1, the first screw nut sleeve 12 is in sliding connection with the sliding groove 21 through the sliding blocks 20, the outer wall size of the scraping plate 13 is matched with the inner wall size of the filter tank 5, the outer wall size of the scraping plate 13 is matched with the inner wall size of the recovery tank 9, the inner wall of the recovery tank 9 is in sliding connection with a recovery vehicle, the outer wall of the first screw nut sleeve 12 is symmetrically and fixedly connected with two scraping plates 13 which are communicated with the through tank 8, a placing groove 14 is formed in the first screw nut sleeve 12, a baffle 15 which is matched with the placing groove 14 is fixedly connected with the inner wall of the base 1, a first cylinder 16 is fixedly connected with the bottom of the top plate 3, the inner wall fixed mounting of mounting panel 17 has second motor 18, the output fixedly connected with cutting wheel 19 of first motor 10, mounting panel 17 shape is U-shaped, base 1 inner wall fixed mounting has third motor 22, third motor 22 output fixedly connected with second ball screw 23, the outside cover of second ball screw 23 is equipped with looks adaptation second lead screw nut sleeve 24, second lead screw nut sleeve 24 outer wall fixedly connected with stripper plate 25, base 1 inner wall fixedly connected with telescopic link 26, telescopic link 26 remove end and stripper plate 25 fixed connection.
The specific implementation mode is as follows: when the equipment needs to cut aluminum materials, firstly, the plate is placed at the top of the base 1, then one end of the plate is moved to the bottom of the cutting wheel 19, meanwhile, in order to ensure that the equipment accurately cuts the plate, a user can drive the second ball screw 23 to rotate by opening the third motor 22, so that the second ball screw 23 drives the second screw nut sleeve 24 and the extrusion plate 25 to move, the extrusion plate 25 stably moves along the base 1 through the telescopic rod 26, the user can adjust the position of the extrusion plate 25, further adjust the distance between the cutting wheel 19 and the extrusion plate 25, further adjust the required aluminum material size according to requirements, then the user can open the first air cylinder 16 and the second motor 18 to work, the first air cylinder 16 drives the mounting plate 17, the second motor 18 and the cutting wheel 19 to move downwards, the cutting wheel 19 can cut and segment the aluminum material, the user opens the exhaust fan 4 to work, the air inlet groove 7 gathers the scraps produced during cutting into the filter tank 5, the filter layer 6 blocks the metal scraps, then the air is sprayed out through the air outlet pipe 30, and in order to prevent the surface accumulation of the filter layer 6 from influencing the quality of the scraps extracted by the air inlet groove 7, when the surface accumulation of the filter layer 6 is large, the user can work by turning on the first motor 10, the first ball screw 11 drives the first screw nut sleeve 12 to move, the first screw nut sleeve 12 moves stably along the sliding groove 21 through the sliding block 20, the left scraping plate 13 does not block the through groove 8 any more, the right scraping plate 13 pushes the scraps on the surface of the filter layer 6 into the recovery tank in the recovery groove 9, the equipment is convenient to collect the scraps intensively, simultaneously first screw nut sleeve 12 is at the in-process that removes, baffle 15 can protect first ball screw 11 this moment, and then can prevent that the piece from influencing first ball screw 11's normal use, after the clearance of filtration layer 6 surface piece finishes, the user adjusts first motor 10 and drives first ball screw 11 reverse direction rotation, and then make two scraper blades 13 reset, and then can prevent that the piece from entering into the inside of filter vat 5 through recovery tank 9, and then the convenience of equipment is accomplished collecting the piece in a concentrated way, and then can reduce the burden that the user collected the piece, also can prevent that the piece from drifting and causing harm to human body and environment simultaneously.
Referring to fig. 1, the present utility model provides the following technical solutions: in addition, the bottom of the top plate 3 is fixedly connected with a second air cylinder 27, the output end of the second air cylinder 27 is fixedly connected with a mounting block 28, and a plurality of extrusion wheels 29 are rotationally connected at equal intervals at the bottom of the mounting block 28.
The specific implementation mode is as follows: before the aluminium alloy cuts, the user can adjust the height of extrusion wheel 29 according to aluminium alloy size this moment, and the user opens second cylinder 27 and drives installation piece 28 and extrusion wheel 29 and remove, and then makes extrusion wheel 29 can the extrusion contact aluminium alloy, and then can prevent that the aluminium alloy from perk when cutting the segmentation, and then can guarantee the quality of follow-up cutting.
The working principle of the utility model is as follows:
referring to fig. 1 to 4, through the cooperation of the first screw nut sleeve 12 and the scraper 13, when the aluminum material is cut and segmented to generate a large amount of scraps, the user can work by opening the exhaust fan 4 at this time, so that the air inlet groove 7 can collect the scraps generated by cutting intensively, then the scraps are blocked by the isolation of the filtering layer 6, when a large amount of scraps are accumulated on the surface of the filtering layer 6, the user opens the first motor 10 to work at this time, so that the scraper 13 can push the scraps intensively into the recycling vehicle inside the recycling groove 9, and the equipment can conveniently collect the scraps intensively, so that the scraps can be prevented from drifting to harm the human body and the environment, and meanwhile, the burden of collecting the scraps by the user can be lightened.
Through the cooperation of installation piece 28 and extrusion wheel 29, before the aluminium alloy cutting, the user can be according to the height of aluminium alloy size regulation extrusion wheel 29 this moment, and the user opens second cylinder 27 and drives installation piece 28 and extrusion wheel 29 and remove, and then makes extrusion wheel 29 can the extrusion contact aluminium alloy, and then can prevent that the aluminium alloy from perk when cutting the segmentation, and then can guarantee the quality of follow-up cutting.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A circular sawing machine for positioning and processing multi-size aluminum profiles comprises a base (1);
the support rod (2) is fixedly connected to the periphery of the top of the base (1);
the top plate (3) is arranged at the top of the base (1), and the top plate (3) is fixedly connected with the base (1) through the supporting rod (2);
the method is characterized in that:
the utility model discloses a filter device, including base (1) inner wall fixed mounting has air exhauster (4), filter tank (5) have been seted up to base (1) inside, filter tank (5) inner wall fixedly connected with filter layer (6), air inlet groove (7) that are linked together have been seted up at filter tank (5) top, logical groove (8) that are linked together with filter tank (5) have been seted up to base (1) inside, recovery tank (9) that are linked together with logical groove (8) have been seted up to base (1) inside, base (1) inner wall fixed mounting has first motor (10), first motor (10) output fixedly connected with first ball screw (11), first ball screw (11) outside cover is equipped with first lead screw nut sleeve (12) of looks adaptation, first lead screw nut sleeve (12) outer wall symmetry fixedly connected with two scraper blade (13) that are linked together with logical groove (8), standing groove (14) have been seted up inside to first lead screw nut sleeve (12), base (1) inner wall fixedly connected with and standing groove (14) looks (15).
2. The circular sawing machine for positioning and processing multi-size aluminum profiles according to claim 1, wherein: the novel cutting machine is characterized in that a first air cylinder (16) is fixedly connected to the bottom of the top plate (3), an installation plate (17) is fixedly connected to the output end of the first air cylinder (16), a second motor (18) is fixedly installed on the inner wall of the installation plate (17), a cutting wheel (19) is fixedly connected to the output end of the first motor (10), and the installation plate (17) is U-shaped.
3. The circular sawing machine for positioning and processing multi-size aluminum profiles according to claim 1, wherein: the utility model discloses a filter tank, including base (1), scraper blade (13), filter tank (5) inner wall size looks adaptation, two slider (20) of first screw nut sleeve (12) outer wall symmetry fixedly connected with, spout (21) with slider (20) looks adaptation are seted up to base (1) inside, first screw nut sleeve (12) are through slider (20) and spout (21) sliding connection, scraper blade (13) outer wall size and filter tank (5) inner wall size looks adaptation, scraper blade (13) outer wall size and recovery tank (9) inner wall size looks adaptation, recovery tank (9) inner wall sliding connection has the recovery car.
4. The circular sawing machine for positioning and processing multi-size aluminum profiles according to claim 1, wherein: one end of the exhaust fan (4) is fixedly connected with an air outlet pipe (30) which is matched with the exhaust fan, the air outlet pipe (30) extends to the outside of the base (1), and the shape of the placing groove (14) is annular.
5. The circular sawing machine for positioning and processing multi-size aluminum profiles according to claim 1, wherein: the novel telescopic device is characterized in that a third motor (22) is fixedly arranged on the inner wall of the base (1), the output end of the third motor (22) is fixedly connected with a second ball screw (23), a second lead screw nut sleeve (24) which is matched with the output end of the second ball screw (23) is sleeved outside the second ball screw, an extrusion plate (25) is fixedly connected with the outer wall of the second lead screw nut sleeve (24), a telescopic rod (26) is fixedly connected with the inner wall of the base (1), and the moving end of the telescopic rod (26) is fixedly connected with the extrusion plate (25).
6. The circular sawing machine for positioning and processing multi-size aluminum profiles according to claim 1, wherein: the bottom of the top plate (3) is fixedly connected with a second air cylinder (27), the output end of the second air cylinder (27) is fixedly connected with a mounting block (28), and a plurality of extrusion wheels (29) are rotationally connected to the bottom of the mounting block (28) at equal intervals.
CN202322324707.5U 2023-08-29 2023-08-29 Circular sawing machine for positioning and processing multi-size aluminum profiles Active CN220698384U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322324707.5U CN220698384U (en) 2023-08-29 2023-08-29 Circular sawing machine for positioning and processing multi-size aluminum profiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322324707.5U CN220698384U (en) 2023-08-29 2023-08-29 Circular sawing machine for positioning and processing multi-size aluminum profiles

Publications (1)

Publication Number Publication Date
CN220698384U true CN220698384U (en) 2024-04-02

Family

ID=90441619

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322324707.5U Active CN220698384U (en) 2023-08-29 2023-08-29 Circular sawing machine for positioning and processing multi-size aluminum profiles

Country Status (1)

Country Link
CN (1) CN220698384U (en)

Similar Documents

Publication Publication Date Title
CN206343714U (en) A kind of chamfering machine
CN109227159A (en) A kind of adjustable machining workbench
CN220698384U (en) Circular sawing machine for positioning and processing multi-size aluminum profiles
CN219504313U (en) Numerical control cutter grinding device
CN111069967B (en) Environment-friendly metal debris collecting device applied to cutting equipment
CN116765503A (en) Cutting device for metal plate
CN115815638A (en) Automatic multi-angle feed's digit control machine tool
CN215920028U (en) Hierarchical polishing grinding device of accurate mould
CN113635400A (en) Dustless cutting mechanism of panel
CN212146809U (en) Panel cutting device for furniture production and processing
CN210116047U (en) Stone material processing recovery plant
CN219094498U (en) Debris cleaning apparatus
CN216864636U (en) Mask processing is with tailorring equipment that has garbage collection function
CN217372606U (en) Automatic change equipment of cutting absolutely
CN220217680U (en) Waste recycling device for numerical control machining
CN218802830U (en) Plate cutting machine
CN221020449U (en) Metal casting surface polishing device with limiting mechanism
CN210552229U (en) Ceramic tile cutting device for interior decoration
CN212146005U (en) Water jet cutting machine for automobile metal plate
CN213290446U (en) Plastic film edge trimmer
CN220970928U (en) Novel saw cut chip removing device
CN215903268U (en) Multifunctional knife handle surface machining device
CN215199967U (en) Cutting device for production and processing of hydraulic valve
CN218776202U (en) Filter device of chain plate chip removal machine
CN215882568U (en) Engineering construction is with resin tile suppression side cut device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant