CN216575822U - Two-group dislocation cutting machine - Google Patents

Two-group dislocation cutting machine Download PDF

Info

Publication number
CN216575822U
CN216575822U CN202123414334.8U CN202123414334U CN216575822U CN 216575822 U CN216575822 U CN 216575822U CN 202123414334 U CN202123414334 U CN 202123414334U CN 216575822 U CN216575822 U CN 216575822U
Authority
CN
China
Prior art keywords
brick
cylinder
spindle
seat
frame
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
CN202123414334.8U
Other languages
Chinese (zh)
Inventor
马光华
袁美英
李问弟
陈科
马光南
秦继春
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.)
Guangdong Pangu Technology Co ltd
Original Assignee
Guangdong Pangu 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 Guangdong Pangu Technology Co ltd filed Critical Guangdong Pangu Technology Co ltd
Priority to CN202123414334.8U priority Critical patent/CN216575822U/en
Application granted granted Critical
Publication of CN216575822U publication Critical patent/CN216575822U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The utility model discloses a two dislocation cutting machines of group, which comprises a frame, the frame is equipped with two, one side the swing cylinder is installed through keeping off brick cylinder block to the tip of frame, two keep off the brick seat is installed respectively at the top of frame, and keeps off and be connected with between the brick seat and keep off the brick axle, the output shaft of swing cylinder is connected with the swing part on keeping off the brick seat, it runs through and keeps off the brick seat and is connected with the swing part to keep off the brick axle, the top of frame is installed through cylinder fixing base and cylinder mount pad and is pushed away the brick cylinder, and installs the brick pushing plate on the output shaft of brick pushing cylinder. This kind of two dislocation cutting machines of group is equipped with swing cylinder, keeps off the brick axle, pushes away the brick board and pushes away the brick cylinder, and swing cylinder utilizes to drive the swing part and drives the reciprocal swing of brick axle, controls the translation rate of panel on the conveyer belt, pushes away the back-and-forth movement that the brick cylinder drove the brick board simultaneously for panel promotes appointed position backward, carries out unified location to the panel that gets into in succession, improves subsequent cutting accuracy.

Description

Double-group dislocation cutting machine
Technical Field
The utility model relates to a cutting machine technical field specifically is a two dislocation cutting machines of group.
Background
Along with the continuous improvement of science and technology level, the panel that uses at construction and construction unit all has strict size regulation, and can't reach the effect of high accuracy in the production process of panel, need carry out the processing in later stage for the size of panel is enough accurate, and the cutting machine among the prior art is in the continuous cutting process of the panel of processing big specification, and efficiency can be than low, and most structure does not design automatic positioning structure, makes the course of working precision not high.
Through massive search, the typical publication numbers of the plate cutting machine in the prior art are as follows: CN 212471649U's panel automatic cutout machine, including carrying the frame, the terminal fixed mounting of carrying the frame has the cutter frame, the top fixed mounting of cutter frame has the cutter base, it has the cutting motor to articulate through round pin axle bed and round pin axle on the cutter base, install the cutting piece on the main shaft of cutting motor, fixed mounting has the stand on the lateral wall of cutter base, install the cutting thrust unit who is used for promoting the cutting motor on the stand, install under the cutting motor and be used for carrying out the tight positioning mechanism of clamp to panel, wherein just there is foretell defect, unable continuous extensive cutting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two dislocation cutting machines to solve the cutting machine among the prior art who provides among the above-mentioned background art in the continuous cutting process of panel of processing big specification, efficiency can be lower, and the majority structure does not have the automatic positioning structure of design, makes the not high problem of course of working precision.
In order to achieve the above object, the utility model provides a following technical scheme: a double-group dislocation cutting machine, which comprises a frame,
the improved brick pushing machine comprises a rack, and is characterized in that the rack is provided with two swing cylinders, one side of the rack is provided with a brick blocking seat at the top, the brick blocking seats are respectively arranged at the top of the rack, a brick blocking shaft is connected between the brick blocking seats, an output shaft of each swing cylinder is connected with a swing component on each brick blocking seat, each brick blocking shaft penetrates through each brick blocking seat to be connected with the corresponding swing component, one side of the rack is provided with an electric box, the top of the rack is provided with a brick pushing cylinder through a cylinder fixing seat and a cylinder mounting seat, a brick pushing plate is arranged on the output shaft of each brick pushing cylinder, a brick pushing cross beam is arranged at the top of each cylinder mounting seat and connected with each brick blocking shaft through a positioning seat, the two tops of the rack are respectively provided with a main shaft part, the end part of the rack is positioned at the bottom of the main shaft part and is provided with a lifting assembly, and both sides of the top of the rack are respectively provided with a pressing plate assembly.
Preferably, a driving roller and a driven roller are installed in the rack through a roller installation plate, a conveying belt is installed on the driving roller and the driven roller, an output shaft of the driving roller is connected with a first speed reducer, and a conveying motor is arranged at the top of the first speed reducer.
Through adopting above-mentioned technical scheme, realize the rotation of initiative cylinder, and then drive the co-rotation of driven cylinder through the conveyer belt.
Preferably, the lifting assembly is composed of a lifting fixing seat, a lifting screw rod, a lifting sliding plate and a second speed reducer, the lifting fixing seat is arranged on the outer side of the frame, the lifting sliding plate is installed in the lifting fixing seat through the lifting screw rod, the second speed reducer is connected with the lifting screw rod, and a lifting motor is further arranged outside the second speed reducer.
By adopting the technical scheme, the lifting of the main shaft part is realized, and the adjustment of the cutter head component is convenient.
Preferably, the main shaft box of the main shaft part is installed on a lifting sliding plate and is penetrated through by a main shaft body, a water cover is installed outside the main shaft box in a rotating mode, a water baffle is arranged between the water cover and the main shaft box, a driving motor is arranged at the top of the main shaft box and is connected with a multi-wedge belt wheel of the main shaft body through a belt in the belt cover, the top of the main shaft box is connected with an externally-hanging plate through a supporting pipe, an externally-hanging bearing seat is arranged at the bottom of the externally-hanging plate, the main shaft body penetrates through a deep groove ball bearing in the externally-hanging bearing seat, a shaft head protecting sleeve is arranged on the outer side of the externally-hanging bearing seat, and a rotating sleeve is arranged on the inner side of the externally-hanging bearing seat.
By adopting the technical scheme, the protection effect on the main shaft body is improved, and the main shaft body is prevented from being damaged.
Preferably, the contact positions of the main shaft body, the main shaft box and the external bearing seat are respectively provided with a gland, a framework oil seal is arranged in the gland, the main shaft box is internally provided with two groups of deep groove ball bearings, a spacer sleeve is arranged between the deep groove ball bearings in the same group, an external clamp is arranged on the outer side of each deep groove ball bearing, the inner side of the gland on one side of the multi-wedge belt wheel of the main shaft body is also provided with a main shaft sleeve, round nuts are arranged at a plurality of positions on the main shaft body and the main shaft box, a water blocking cover is arranged outside the joint position of the middle part of the main shaft body and the main shaft box, and one group or a plurality of groups of tool bit assemblies are installed on the main shaft body as required.
Through adopting above-mentioned technical scheme, the mounted position of tool bit subassembly is conveniently designed as required, and the effect of protection main shaft is all played to water blocking lid and spindle sleeve etc. in the main shaft part.
Preferably, the pressing plate assembly is composed of a pressing beam and pressing wheels, the pressing beam is connected with the bottom frame body through a screw, and the bottom of the frame body is provided with a plurality of groups of pressing wheels.
Through adopting above-mentioned technical scheme, push down panel through the pinch roller, and then make things convenient for the cutting.
Compared with the prior art, the beneficial effects of the utility model are that: the double-group dislocation cutting machine is provided with a cutting machine,
(1) the automatic plate pushing and conveying device is provided with a swing cylinder, a brick blocking shaft, a brick pushing plate and a brick pushing cylinder, wherein the swing cylinder drives a swing part to drive the brick blocking shaft to swing in a reciprocating mode, the moving speed of a plate on a conveying belt is controlled, and meanwhile, the brick pushing cylinder drives the brick pushing plate to move back and forth, so that the plate is pushed backwards to a designated position, the plate which enters continuously is positioned in a unified mode, the subsequent cutting precision is improved, and manpower resources are saved;
(2) the spindle box is provided with the water baffle, the water cover, the gland, the framework oil seal and the spindle water baffle cover, and by utilizing the design of the water baffle, the water cover and the spindle water baffle cover, poured water cannot splash into the spindle part during cutting, so that internal components are prevented from rusting, the sealing performance in the spindle box and an externally hung bearing seat is improved by the design of the gland and the framework oil seal, and a spindle driving part is protected;
(3) be provided with pressure beam and pinch roller, when panel was cut, the pressure beam utilized the pinch roller to push down panel in advance, made things convenient for subsequent cutting, and the pinch roller can roll, so can not influence the normal motion of panel on the conveyer belt, played the effect of supplementary cutting.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the top view structure of the present invention
Fig. 4 is a schematic view of the main shaft of the present invention in a partial sectional structure.
In the figure: 1. a frame 101, a driving roller 102, a driven roller 103, a roller mounting plate 104, a conveying belt 105, a conveying motor 106, a first speed reducer 2, a swing cylinder 3, a brick blocking cylinder seat 4, a brick blocking seat 5, a brick blocking shaft 6, a brick pushing plate 7, an electric box 8, a main shaft part 801, a main shaft box 802, a water baffle plate 803, a belt cover 804, a water cover 805, a main shaft body 806, a driving motor 807, a multi-wedge belt pulley 808, a deep groove ball bearing 809, a spacer bush 810, an outer clamp 811, a round nut 812, a gland 813, a framework oil seal 814, a main shaft water baffle cover 815, a spindle sleeve 816, an outer hanging plate 816, an outer hanging bearing seat 817, a spindle head protecting sleeve 818, a rotating sleeve 819, an outer hanging plate 820, a supporting pipe 9, a lifting fixing seat 10, a lifting screw rod 11, a lifting sliding plate 12, a second speed reducer 13, a brick pushing cylinder, 14. cylinder fixing seat, 15, cylinder mount pad, 16, pressure beam, 17, pinch roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a two group dislocation cutting machines, as shown in fig. 1, fig. 2 and fig. 3, frame 1 is equipped with two, install initiative cylinder 101 and driven cylinder 102 through cylinder mounting panel 103 in the frame 1, and the conveyer belt 104 is installed to initiative cylinder 101 and driven cylinder 102, the output shaft and the first reduction gear 106 of initiative cylinder 101 are connected simultaneously, the top of first reduction gear 106 is equipped with conveying motor 105, utilize conveying motor 105 and first reduction gear 106 to drive the rotation of initiative cylinder 101, and then realize the motion that drives conveyer belt 104, make panel can utilize conveyer belt 104 to realize the motion, first reduction gear 106 improves the moment of torsion simultaneously, make conveyer belt 104 can drive more panel motion.
As shown in fig. 1, 2 and 3, the end of one side frame 1 is installed with a swing cylinder 2 through a brick blocking cylinder seat 3, the tops of two frames 1 are respectively installed with brick blocking seats 4, a brick blocking shaft 5 is connected between the brick blocking seats 4, the output shaft of the swing cylinder 2 is connected with a swing component on the brick blocking seat 4, the brick blocking shaft 5 penetrates through the brick blocking seats 4 and is connected with the swing component, the swing cylinder 2 can realize the reciprocating swing effect of driving the brick blocking shaft 5, so as to limit the plate on the conveying belt 104, the top of one side frame 1 is installed with an electric box 7, the electric box 7 is started at each position in the control device, the top of the frame 1 is installed with a brick pushing cylinder 13 through a cylinder fixing seat 14 and a cylinder mounting seat 15, and the output shaft of the brick pushing cylinder 13 is installed with a brick pushing plate 6, the brick pushing cylinder 13 is used to drive the brick pushing plate 6 to move back and forth, so as to realize the positioning of the plate, the top of the cylinder mounting seat 15 is provided with a brick pushing cross beam, and the brick pushing cross beam is connected with the brick blocking shaft 5 through a positioning seat.
As shown in fig. 1, 2 and 4, the top of each of the two racks 1 is provided with a spindle part 8, a spindle box 801 of the spindle part 8 is mounted on the lifting slide plate 11, the spindle box 801 is penetrated by a spindle main body 805, a water cover 804 is rotatably mounted outside the spindle box 801, a water baffle 802 is arranged between the water cover 804 and the spindle box 801, the water cover 804 and the water baffle 802 are designed to reduce water inflow in the spindle box 801, because an external water conveying structure needs to be opened for watering during cutting, the effect of cooling and inhibiting splashing of scraps is achieved, the top of the spindle box 801 is provided with a driving motor 806, the driving motor 806 is connected with a multi-wedge pulley 807 of the spindle main body 805 through a belt in the belt cover 803, the top of the spindle box 801 is connected with an outer hanging plate 819 through a supporting pipe 820, an external hanging bearing pedestal 816 is arranged at the bottom of the outer hanging plate 819, the spindle main body 805 passes through a deep groove ball bearing 808 in the external hanging pedestal 816, a spindle head protecting sleeve 817 is arranged on the outer side of the external bearing seat 816, a rotating sleeve 818 is arranged on the inner side of the external bearing seat 816, the protecting effect on a main spindle body 805 is improved, the service life of the device is further prolonged, a gland 812 is arranged at the contact part of the main spindle body 805 and the main spindle box 801 and the external bearing seat 816, a framework oil seal 813 is arranged in the gland 812, two groups of deep groove ball bearings 808 are arranged in the main spindle box 801, a spacer 809 is arranged between the same group of deep groove ball bearings 808, an outer clamp 810 is arranged on the outer side of the deep groove ball bearings 808, a main spindle sleeve 815 is further arranged on the inner side of the gland 812 at one side of a multi-wedge pulley 807 of the main spindle body 805, round nuts 811 are arranged at multiple positions on the main spindle body 805 and the main spindle box 801, a water blocking cover 814 is further arranged outside the connection part of the middle part of the main spindle body 805 and the main spindle box 801, and one or more groups of tool bit assemblies are mounted on the main spindle body as required, the size of a cutting plate and the effect required to be conveniently adjusted, the application range of the device is improved, and the end part of the frame 1 is positioned at the bottom of the main shaft part 8 and is provided with a lifting assembly.
As shown in fig. 1 and fig. 2, the lifting assembly is composed of a lifting fixing seat 9, a lifting screw rod 10, a lifting slide plate 11 and a second speed reducer 12, the lifting fixing seat 9 is arranged outside the frame 1, the lifting slide plate 11 is arranged in the lifting fixing seat 9 through the lifting screw rod 10, the second speed reducer 12 is connected with the lifting screw rod 10, a lifting motor is further arranged outside the second speed reducer 12, the lifting motor is used for driving the lifting screw rod 10 to rotate, so that the main shaft part 8 can be lifted on the frame 1, and further, plates with different thicknesses can be conveniently cut, the pressing plate assemblies are arranged on both sides of the top of the frame 1, the pressing plate assemblies are composed of pressing beams 16 and pressing wheels 17, the pressing beams 16 are connected with the frame body at the bottom through screws, and multiple groups of pressing wheels 17 are arranged on the bottom of the frame body, and the pressing wheels 17 can prevent the plates from sliding and shaking when being cut, avoid influencing the cutting effect, pinch roller 17 can roll simultaneously, reaches the spacing effect when removing.
When the device is used, a power supply is started, the tool bit assembly is installed, the conveying belt 104 is started, the water switch is turned on, water is discharged from the cutting position, plates are fed from the left side, the swing cylinder 2 drives the brick blocking shaft 5 to swing, the brick pushing cylinder drives the brick pushing plate 6 to move back and forth, the plates move rightwards near the rear end on the conveying belt 104, the plates are pressed when passing through the pressing wheel 17, the plates are cut by the tool bit assembly in the main shaft part 8 under the driving of the conveying belt 104, the machining speed is increased by the two groups of tool bit assemblies, the device can realize automatic positioning before large-size plates are cut, and manpower resources are saved.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.
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 or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a two dislocation cutting machines of group, includes frame (1), its characterized in that:
the brick pushing machine is characterized in that the number of the machine frame (1) is two, the end part of the machine frame (1) at one side is provided with a swing cylinder (2) through a brick blocking cylinder seat (3), the top parts of the two machine frames (1) are respectively provided with a brick blocking seat (4), a brick blocking shaft (5) is connected between the brick blocking seats (4), an output shaft of the swing cylinder (2) is connected with a swing component on the brick blocking seat (4), the brick blocking shaft (5) penetrates through the brick blocking seats (4) to be connected with the swing component, the top part of the machine frame (1) at one side is provided with an electric box (7), the top part of the machine frame (1) is provided with a brick pushing cylinder (13) through a cylinder fixing seat (14) and a cylinder mounting seat (15), the output shaft of the brick pushing cylinder (13) is provided with a brick pushing plate (6), the top part of the cylinder mounting seat (15) is provided with a brick pushing cross beam, and the brick pushing cross beam is connected with the brick blocking shaft (5) through a positioning seat, two the top of frame (1) all is equipped with main shaft part (8), and the tip of frame (1) is located main shaft part (8) bottom and all is equipped with lifting unit, the top both sides of frame (1) all are equipped with the clamp plate subassembly.
2. The double-group dislocation cutting machine according to claim 1, characterized in that: a driving roller (101) and a driven roller (102) are installed in the rack (1) through a roller installation plate (103), a conveying belt (104) is installed on the driving roller (101) and the driven roller (102), an output shaft of the driving roller (101) is connected with a first speed reducer (106), and a conveying motor (105) is arranged at the top of the first speed reducer (106).
3. The double-group dislocation cutting machine according to claim 1, characterized in that: the lifting assembly is composed of a lifting fixing seat (9), a lifting screw rod (10), a lifting sliding plate (11) and a second speed reducer (12), the lifting fixing seat (9) is arranged on the outer side of the rack (1), the lifting sliding plate (11) is installed in the lifting fixing seat (9) through the lifting screw rod (10), the second speed reducer (12) is connected with the lifting screw rod (10), and a lifting motor is further arranged outside the second speed reducer (12).
4. The double-group dislocation cutting machine according to claim 1, characterized in that: the main shaft box (801) of the main shaft part (8) is arranged on the lifting sliding plate (11), the spindle box (801) is penetrated by the spindle main body (805), a water cover (804) is rotatably arranged outside the spindle box (801), a water baffle (802) is arranged between the water cover (804) and the main shaft box (801), a driving motor (806) is arranged at the top of the main shaft box (801), and the driving motor (806) is connected with the multi-wedge belt wheel (807) of the main shaft body (805) through a belt in the belt cover (803), the top of the main shaft box (801) is connected with an outer hanging plate (819) through a supporting tube (820), an externally hung bearing seat (816) is arranged at the bottom of the externally hung plate (819), the main shaft body (805) penetrates through a deep groove ball bearing (808) in the externally hung bearing seat (816), a shaft head protecting sleeve (817) is arranged on the outer side of the externally-hung bearing seat (816), and a rotating sleeve (818) is arranged on the inner side of the externally-hung bearing seat (816).
5. The double-group dislocation cutting machine according to claim 4, characterized in that: the spindle comprises a spindle body (805), a spindle box (801), an externally-hung bearing seat (816) and a framework oil seal (813) are arranged at the contact positions of the spindle body (805) and the spindle box (801), a spacer (809) is arranged between the main spindle body and the externally-hung bearing seat (816), a framework oil seal (813) is arranged in the gland (812), two groups of deep groove ball bearings (808) are arranged in the spindle box (801), a spacer (809) is arranged between the deep groove ball bearings (808), an outer clamp (810) is arranged on the outer side of the deep groove ball bearings (808), a spindle sleeve (815) is further arranged on the inner side of the gland (812) on one side of a multi-wedge belt wheel (807) of the spindle body (805), round nuts (811) are arranged at multiple positions on the spindle body (805) and the spindle box (801), a water blocking cover (814) is further arranged on the outer portion of the connection position of the middle of the spindle body (805) and the spindle box (801), and one or more groups of tool bit assemblies are mounted on the spindle body (805) as required.
6. The double-group dislocation cutting machine according to claim 1, characterized in that: the pressing plate assembly is composed of a pressing beam (16) and pressing wheels (17), the pressing beam (16) is connected with the bottom of the frame body through screws, and the bottom of the frame body is provided with a plurality of groups of pressing wheels (17).
CN202123414334.8U 2021-12-30 2021-12-30 Two-group dislocation cutting machine Active CN216575822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123414334.8U CN216575822U (en) 2021-12-30 2021-12-30 Two-group dislocation cutting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123414334.8U CN216575822U (en) 2021-12-30 2021-12-30 Two-group dislocation cutting machine

Publications (1)

Publication Number Publication Date
CN216575822U true CN216575822U (en) 2022-05-24

Family

ID=81632127

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123414334.8U Active CN216575822U (en) 2021-12-30 2021-12-30 Two-group dislocation cutting machine

Country Status (1)

Country Link
CN (1) CN216575822U (en)

Similar Documents

Publication Publication Date Title
CN216575822U (en) Two-group dislocation cutting machine
CN201020566Y (en) Round ingot saw machine oscillated by lever arm
CN218081678U (en) Vertical lathe with iron fillings clearance structure
CN114406137B (en) Hydraulic pier head machine for processing internal reinforcing steel bars of cement poles
CN215696803U (en) Processing device for repairing roller of screw-thread steel rolling mill
CN112775481A (en) Pipe cutting machine for wiring engineering
CN215787585U (en) Roller body processing equipment
CN219444168U (en) Steel rail drilling device
CN220329031U (en) Steel construction surface corrosion protection treatment facility
CN221185401U (en) Automatic module design automatic assembly device
CN116786708B (en) Reinforcing steel bar bending equipment capable of continuously bending reinforcing steel bars
CN219402623U (en) Saw cut discharging clamping device
CN215317456U (en) Machining center for light materials
CN220240923U (en) Lathe cutter bar rough grinding machine with spray structure
CN217942217U (en) Hardware processing laser cutting machine with location structure
CN216882078U (en) Pump shaft orifice chamfering tool
CN212760215U (en) Rotary lifting device for cylindrical workpiece
CN108888784B (en) Mounting and spraying structure of sterilizing cylinder in rotary rubber plug cleaning sterilizing cabinet
CN214978038U (en) Automatic cutting device for angle steel processing
CN217095094U (en) Straightening machine for metal part machining
CN214212303U (en) Drilling machine is used in mould processing convenient to heat dissipation
CN219666851U (en) Hydraulic oil seal machining equipment
CN216504240U (en) Swinging and rotating mechanism of five-axis linkage polishing machine
CN219485702U (en) Transverse manipulator
CN209998377U (en) servo rotary cutter type turning high-speed metal cutting machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant