CN215589632U - Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure - Google Patents

Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure Download PDF

Info

Publication number
CN215589632U
CN215589632U CN202120149487.5U CN202120149487U CN215589632U CN 215589632 U CN215589632 U CN 215589632U CN 202120149487 U CN202120149487 U CN 202120149487U CN 215589632 U CN215589632 U CN 215589632U
Authority
CN
China
Prior art keywords
motor
ceramic
cutting machine
corrosion
fixedly connected
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
CN202120149487.5U
Other languages
Chinese (zh)
Inventor
陶耀德
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.)
Shanghai Crystal Ceramics Co ltd
Original Assignee
Shanghai Crystal Ceramics 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 Shanghai Crystal Ceramics Co ltd filed Critical Shanghai Crystal Ceramics Co ltd
Priority to CN202120149487.5U priority Critical patent/CN215589632U/en
Application granted granted Critical
Publication of CN215589632U publication Critical patent/CN215589632U/en
Expired - Fee Related 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 ceramic cutting machine with a protective structure for machining a corrosion-resistant ceramic shaft sleeve, which comprises a base, wherein the upper end of the base is fixedly connected with a workbench, the right upper end of a collecting box is provided with a fan, and the front end of the base is provided with a control panel. This ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure, increase two sets of electronic slide rails and electronic slider with the upper end of device, realize automatic movement, can drive the protection casing and remove, when the cutting, effectually block inside piece, can protect external staff simultaneously, prevent that inside cutting piece is cracked, splash everywhere, avoid causing the injury to the human body, increase the collecting box with the bottom of cutting machine, be connected dust absorption pipe and workstation simultaneously, the dust and the piece that produce when will cutting absorb, avoid too much dust to cause the pollution to external environment, the clearance in the later stage of being convenient for simultaneously, the practicality has been improved greatly.

Description

Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure
Technical Field
The utility model relates to the technical field of ceramic cutting machines, in particular to a ceramic cutting machine with a protection structure for processing a corrosion-resistant ceramic shaft sleeve.
Background
The ceramic cutting machine is a machine for directly driving a saw blade to cut ceramic, and is an electric table tool, and the saw blade is driven to perform high-speed linear cutting by using the flying rotating speed of the motor, so that the effect of cutting a decorative material with high hardness, such as ceramic, without edge breakage is achieved.
However, current ceramic-cutting machine is when using, most of all are direct exposing and carry out the operation in the external world, a lot of pieces etc. can splash everywhere when the cutting, cause the pollution to the environment very easily, the later stage clearance is got up very trouble, simultaneously when the cutting, do not have fine automatic safety device, in case the cutting part damages, lead to the cutting piece to split open, can cause harm to staff on every side very easily, current ceramic-cutting machine does not have fine garbage collection function simultaneously, make the post processing waste material comparatively troublesome, greatly reduced the practicality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ceramic cutting machine with a protective structure for processing a corrosion-resistant ceramic shaft sleeve, and aims to solve the problems that most of the existing ceramic cutting machines are directly exposed to the outside for operation when in use, a lot of scraps and the like can splash everywhere during cutting, the environment is easily polluted, the cleaning in the later period is troublesome, and meanwhile, no good automatic protective device is provided during cutting, so that once a cutting part is damaged, a cutting piece cracks, the damage to surrounding workers can be easily caused, and meanwhile, the existing ceramic cutting machines do not have good waste collection function, so that the waste treatment in the later period is troublesome, and the practicability is greatly reduced.
In order to achieve the purpose, the utility model provides the following technical scheme: a ceramic cutting machine with a protective structure for machining a corrosion-resistant ceramic shaft sleeve comprises a base, wherein a workbench is fixedly connected to the upper end of the base, first dead slots are respectively formed in the left side and the right side of the upper end of the workbench, a first motor is fixedly connected to the front end of the workbench, a first lead screw is arranged inside each first dead slot, a transmission end of the first motor is in transmission connection with the front end of the first lead screw, a first movable block is arranged on the outer side of the first lead screw, a support seat is fixedly connected to the upper end of the first movable block, a second motor is fixedly connected to the left end of the support seat, a second dead slot is formed in the front end of the support seat, a second lead screw is arranged inside each second dead slot, the left end of the second lead screw is in transmission connection with the transmission end of the second motor, a second movable block is arranged on the outer side of the second lead screw, and a mounting shell is fixedly connected to the front end of the second movable block, an electric telescopic rod is arranged in the mounting shell, the lower end of the electric telescopic rod is fixedly connected with a third motor, the left end of the third motor is provided with a cutting blade which is in transmission connection with the transmission end of the third motor, a third empty groove is arranged at the upper end of the workbench and positioned at the outer side of the first empty groove, an electric slide rail is arranged inside the third empty groove, an electric slide block is arranged on the outer side of the electric slide rail, the upper end of the electric slide block is fixedly connected with a protective cover, a glass panel is arranged in the middle of the protective cover, a cavity is arranged in the middle of the upper end of the workbench, a cutting table is arranged inside the cavity, a collecting box is arranged inside the base, the left upper end of the collecting box is fixedly connected with a dust collecting pipe, the upper right end of the collecting box is provided with a fan, and the front end of the base is provided with a control panel.
Preferably, the first empty slot, the first motor, the first screw rod and the first movable block are symmetrically arranged about a vertical central line of the base, and the first screw rod is in threaded connection with the first movable block.
Preferably, the second screw rod is in threaded connection with the second movable block.
Preferably, the third empty groove, the electric slide rail and the electric slide block are symmetrically arranged in two groups respectively about a horizontal center line of the workbench, each group of the electric slide blocks is provided with two electric slide rails, and the electric slide rails are connected with the electric slide blocks in a sliding manner.
Preferably, the upper end of the protective cover is provided with a groove, the width of the groove is larger than half of the width of the installation shell, the protective cover is designed in an arc-shaped structure, and the two protective covers are symmetrically arranged on the vertical center line of the workbench.
Preferably, the control panel is electrically connected with the first motor, the second motor, the electric telescopic rod, the third motor, the electric slide rail, the electric slide block and the fan.
Compared with the prior art, the utility model has the beneficial effects that:
1. this ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure, through the third dead slot, electronic slide rail, the setting of electronic slider and protection casing, increase two sets of electronic slide rails and electronic slider with the upper end of device, through the slip between electronic slide rail and the electronic slider, realize automatic movement, it removes to drive the protection casing, when the cutting, effectual piece to inside blocks, can protect external staff simultaneously, it is cracked to prevent inside cutting piece, splash everywhere, avoid causing the injury to the human body.
2. This ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure, through the setting of collecting box, fan and dust absorption pipe, increases the collecting box with the bottom of cutting machine, is connected dust absorption pipe and workstation simultaneously, and the dust and the piece that produce when cutting absorb, avoid too much dust to cause the pollution to external environment, and the clearance in the later stage of being convenient for has simultaneously improved the practicality greatly.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic top view of the present invention.
In the figure: 1. a base; 2. a work table; 3. a first empty slot; 4. a first motor; 5. a first lead screw; 6. a first movable block; 7. a supporting seat; 8. a second motor; 9. a second empty slot; 10. a second lead screw; 11. a second movable block; 12. mounting a shell; 13. an electric telescopic rod; 14. a third motor; 15. cutting the slices; 16. a third empty slot; 17. an electric slide rail; 18. an electric slider; 19. a protective cover; 20. a glass panel; 21. a cavity; 22. cutting table; 23. a collection box; 24. a dust collection pipe; 25. a fan; 26. a control panel; 191. and (4) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: a ceramic cutting machine with a protective structure for processing a corrosion-resistant ceramic shaft sleeve comprises a base 1, wherein the upper end of the base 1 is fixedly connected with a workbench 2, the left side and the right side of the upper end of the workbench 2 are respectively provided with a first empty groove 3, the front end of the workbench 2 is fixedly connected with a first motor 4, a first lead screw 5 is arranged inside the first empty groove 3, the transmission end of the first motor 4 is in transmission connection with the front end of the first lead screw 5, the outer side of the first lead screw 5 is provided with a first movable block 6, the upper end of the first movable block 6 is fixedly connected with a supporting seat 7, the left end of the supporting seat 7 is fixedly connected with a second motor 8, the front end of the supporting seat 7 is provided with a second empty groove 9, the inside of the second empty groove 9 is provided with a second lead screw 10, the left end of the second lead screw 10 is in transmission connection with the transmission end of the second motor 8, the outer side of the second lead screw 10 is provided with a second movable block 11, the front end of the second movable block 11 is fixedly connected with a mounting shell 12, the inside of installing shell 12 is provided with electric telescopic handle 13, electric telescopic handle 13's lower extreme fixedly connected with third motor 14, the left end of third motor 14 is provided with cutting piece 15, cutting piece 15 is connected with the transmission end transmission of third motor 14, third dead slot 16 has been seted up in the outside that the upper end of workstation 2 is located first dead slot 3, the inside of third dead slot 16 is provided with electronic slide rail 17, electronic slide rail 17's the outside is provided with electronic slider 18, electronic slider 18's upper end fixedly connected with protection casing 19, the centre of protection casing 19 is provided with glass panels 20, cavity 21 has been seted up in the middle of workstation 2's the upper end, the inside of cavity 21 is provided with cutting bed 22, the inside of base 1 is provided with collecting box 23, the upper left end fixedly connected with dust absorption pipe 24 of collecting box 23, the upper right end of collecting box 23 is provided with fan 25, the front end of base 1 is provided with control panel 26.
Furthermore, the first empty groove 3, the first motor 4, the first screw rod 5 and the first movable block 6 are symmetrically arranged about the vertical center line of the base 1, and the first screw rod 5 is in threaded connection with the first movable block 6, so that automatic movement of the cutting equipment is realized.
Further, the second screw rod 10 is in threaded connection with the second movable block 11, so that the left and right movement of the cutting equipment is realized.
Further, third dead slot 16, electronic slide rail 17 and electronic slider 18 are provided with two sets ofly about the horizontal central line symmetry of workstation 2 respectively, and every electronic slider 18 of group is provided with two, and electronic slide rail 17 and electronic slider 18 sliding connection realize the quick travel of protection casing 19, are convenient for protect at any time.
Further, recess 191 has been seted up to the upper end of protection casing 19, and the width of recess 191 is greater than half of installation shell 12 width, and protection casing 19 adopts the arc structural design, and protection casing 19 is provided with two about the vertical central line symmetry of workstation 2, can be better cooperate with cutting equipment for the protecting effect maximize.
Further, the control panel 26 is electrically connected with the first motor 4, the second motor 8, the electric telescopic rod 13, the third motor 14, the electric sliding rail 17, the electric sliding block 18 and the fan 25, so that real-time control and adjustment are facilitated.
The working principle is as follows: firstly, a ceramic shaft sleeve to be cut is placed on a cutting table 22, then a second motor 8 is started, a second screw rod 10 is driven to rotate by the rotation of the second motor 8, so that a second movable block 11 is driven to move, a cutting part is moved to a position to be cut, then an electric telescopic rod 13 is started, a cutting piece 15 is moved to the surface of the ceramic shaft sleeve, a third motor 14 is started to rotate the cutting piece 15, an electric sliding rail 17 and an electric sliding block 18 are moved, a protective cover 19 is moved towards the position of the ceramic shaft sleeve, then the ceramic shaft sleeve is wrapped in the protective cover 19, then cutting operation can be started, when cutting is carried out, the protective cover 19 can effectively block chips and dust generated during cutting, so that pollution to the external environment is prevented, meanwhile, a dust suction device at the bottom of the cutting machine can be started, and the rotation of a fan 25 can be carried out, and then the dust and the scraps in the cavity 21 are absorbed by the dust absorption pipe 24, so that the cutting machine is cleaned at any time, and the service life of the cutting machine is effectively prolonged.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1.一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,包括底座(1),其特征在于:所述底座(1)的上端固定连接有工作台(2),所述工作台(2)上端的左右两侧分别开设有第一空槽(3),所述工作台(2)的前端固定连接有第一电机(4),所述第一空槽(3)的内部设置有第一丝杆(5),所述第一电机(4)的传动端与第一丝杆(5)的前端传动连接,所述第一丝杆(5)的外侧设置有第一活动块(6),所述第一活动块(6)的上端固定连接有支撑座(7),所述支撑座(7)的左端固定连接有第二电机(8),所述支撑座(7)的前端开设有第二空槽(9),所述第二空槽(9)的内部设置有第二丝杆(10),所述第二丝杆(10)的左端与第二电机(8)的传动端传动连接,所述第二丝杆(10)的外侧设置有第二活动块(11),所述第二活动块(11)的前端固定连接有安装壳(12),所述安装壳(12)的内部设置有电动伸缩杆(13),所述电动伸缩杆(13)的下端固定连接有第三电机(14),所述第三电机(14)的左端设置有切割片(15),所述切割片(15)与第三电机(14)的传动端传动连接,所述工作台(2)的上端位于第一空槽(3)的外侧开设有第三空槽(16),所述第三空槽(16)的内部设置有电动滑轨(17),所述电动滑轨(17)的外侧设置有电动滑块(18),所述电动滑块(18)的上端固定连接有防护罩(19),所述防护罩(19)的中间设置有玻璃面板(20),所述工作台(2)的上端中间开设有空腔(21),所述空腔(21)的内部设置有切割台(22),所述底座(1)的内部设置有收集箱(23),所述收集箱(23)的左上端固定连接有吸尘管(24),所述收集箱(23)的右上端设置有风机(25),所述底座(1)的前端设置有控制面板(26)。1. A ceramic cutting machine for processing a corrosion-resistant ceramic shaft sleeve with a protective structure, comprising a base (1), characterized in that: a workbench (2) is fixedly connected to the upper end of the base (1), and the working The left and right sides of the upper end of the table (2) are respectively provided with first empty slots (3). The front end of the work table (2) is fixedly connected with a first motor (4). A first screw rod (5) is provided, the transmission end of the first motor (4) is connected to the front end of the first screw rod (5) in a driving connection, and a first movable rod (5) is provided on the outside of the first screw rod (5). Block (6), the upper end of the first movable block (6) is fixedly connected with a support seat (7), the left end of the support seat (7) is fixedly connected with a second motor (8), the support seat (7) ) is provided with a second hollow slot (9) at the front end, a second screw rod (10) is arranged inside the second hollow slot (9), and the left end of the second screw rod (10) is connected to the second motor ( 8), a second movable block (11) is arranged on the outer side of the second screw rod (10), and the front end of the second movable block (11) is fixedly connected with a mounting shell (12), so An electric telescopic rod (13) is arranged inside the installation shell (12), a third motor (14) is fixedly connected to the lower end of the electric telescopic rod (13), and a cutting motor (14) is provided at the left end of the third motor (14). A piece (15), the cutting piece (15) is drivingly connected with the transmission end of the third motor (14), and the upper end of the worktable (2) is located outside the first empty slot (3) and is provided with a third empty slot (16), an electric sliding rail (17) is arranged inside the third empty slot (16), an electric sliding block (18) is arranged outside the electric sliding rail (17), and the electric sliding block (18) ) is fixedly connected with a protective cover (19), a glass panel (20) is arranged in the middle of the protective cover (19), and a cavity (21) is opened in the middle of the upper end of the worktable (2). A cutting table (22) is arranged inside the cavity (21), a collection box (23) is arranged inside the base (1), and a dust suction pipe (24) is fixedly connected to the upper left end of the collection box (23), The upper right end of the collection box (23) is provided with a fan (25), and the front end of the base (1) is provided with a control panel (26). 2.根据权利要求1所述的一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,其特征在于:所述第一空槽(3)、第一电机(4)、第一丝杆(5)和第一活动块(6)分别关于底座(1)的竖直中心线对称设置有两个,所述第一丝杆(5)与第一活动块(6)螺纹连接。2. The ceramic cutting machine for processing corrosion-resistant ceramic bushings with a protective structure according to claim 1, characterized in that: the first cavity (3), the first motor (4), the first Two screw rods (5) and first movable blocks (6) are symmetrically arranged with respect to the vertical centerline of the base (1) respectively, and the first screw rods (5) are threadedly connected with the first movable blocks (6). 3.根据权利要求1所述的一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,其特征在于:所述第二丝杆(10)与第二活动块(11)螺纹连接。3. The ceramic cutting machine for processing a corrosion-resistant ceramic bushing with a protective structure according to claim 1, wherein the second screw rod (10) is threadedly connected to the second movable block (11). . 4.根据权利要求1所述的一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,其特征在于:所述第三空槽(16)、电动滑轨(17)和电动滑块(18)分别关于工作台(2)的水平中心线对称设置有两组,每组所述电动滑块(18)设置有两个,所述电动滑轨(17)和电动滑块(18)滑动连接。4. The ceramic cutting machine for processing corrosion-resistant ceramic bushings with a protective structure according to claim 1, characterized in that: the third empty groove (16), the electric slide rail (17) and the electric slide Two sets of blocks (18) are respectively arranged symmetrically with respect to the horizontal center line of the workbench (2), and two electric sliding blocks (18) are provided in each group, the electric sliding rails (17) and the electric sliding blocks (18) ) sliding connection. 5.根据权利要求1所述的一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,其特征在于:所述防护罩(19)的上端开设有凹槽(191),所述凹槽(191)的宽度大于安装壳(12)宽度的一半,所述防护罩(19)采用弧形结构设计,所述防护罩(19)关于工作台(2)的竖直中心线对称设置有两个。5. The ceramic cutting machine for processing a corrosion-resistant ceramic shaft sleeve with a protective structure according to claim 1, wherein a groove (191) is formed on the upper end of the protective cover (19), and the The width of the groove (191) is greater than half of the width of the installation shell (12), the protective cover (19) is designed with an arc structure, and the protective cover (19) is symmetrically arranged with respect to the vertical centerline of the workbench (2). There are two. 6.根据权利要求1所述的一种带有防护结构的耐腐蚀陶瓷轴套加工用陶瓷切割机,其特征在于:所述控制面板(26)与第一电机(4)、第二电机(8)、电动伸缩杆(13)、第三电机(14)、电动滑轨(17)、电动滑块(18)和风机(25)电性连接。6. The ceramic cutting machine for processing a corrosion-resistant ceramic shaft sleeve with a protective structure according to claim 1, wherein the control panel (26) is connected to the first motor (4), the second motor ( 8), the electric telescopic rod (13), the third motor (14), the electric sliding rail (17), the electric sliding block (18) and the fan (25) are electrically connected.
CN202120149487.5U 2021-01-20 2021-01-20 Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure Expired - Fee Related CN215589632U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120149487.5U CN215589632U (en) 2021-01-20 2021-01-20 Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120149487.5U CN215589632U (en) 2021-01-20 2021-01-20 Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure

Publications (1)

Publication Number Publication Date
CN215589632U true CN215589632U (en) 2022-01-21

Family

ID=79869000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120149487.5U Expired - Fee Related CN215589632U (en) 2021-01-20 2021-01-20 Ceramic cutting machine is used in processing of corrosion-resistant ceramic axle sleeve with protective structure

Country Status (1)

Country Link
CN (1) CN215589632U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700548A (en) * 2022-04-27 2022-07-05 张凯 Sheet metal machining cutting device with chip collecting function
CN114939936A (en) * 2022-06-29 2022-08-26 东莞市译码半导体有限公司 Cutting device is used in wafer processing with protective structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114700548A (en) * 2022-04-27 2022-07-05 张凯 Sheet metal machining cutting device with chip collecting function
CN114700548B (en) * 2022-04-27 2024-02-09 张凯 Sheet metal machining cutting device with chip collecting function
CN114939936A (en) * 2022-06-29 2022-08-26 东莞市译码半导体有限公司 Cutting device is used in wafer processing with protective structure
CN114939936B (en) * 2022-06-29 2023-07-14 东莞市译码半导体有限公司 Cutting device with protective structure for wafer processing

Similar Documents

Publication Publication Date Title
CN216461983U (en) A high-speed cutting precision CNC gantry milling machine
CN212823446U (en) Laser cutting machine waste residue collection device
CN210160515U (en) Novel straight line single-end cutting machine
CN220659884U (en) High-speed drilling and milling numerical control machine tool with protective structure
CN218696611U (en) Safety device is used in machine parts processing
CN216829645U (en) Soft blade cutting equipment
CN212826173U (en) Diamond cutting line machine with cleaning structure
CN217513484U (en) Anti-sputtering safety shield for mechanical cutting
CN219402600U (en) trimming machine for sheet metal
CN216326892U (en) High-speed high-efficiency machining center
CN213701963U (en) Portable hand-operated adjustable dust-free cutting machine
CN2810843Y (en) Horizontal band sawing machine
CN211588648U (en) A double-column milling machine with a protective mechanism
CN212823079U (en) Cutting device for machining of mechanical parts
CN112743130A (en) Portable machining milling machine equipment
CN209999371U (en) sliding table saw for furniture production
CN217728036U (en) A waste cleaning device for an upper punch and upper rail processing milling machine
CN221136185U (en) Safe and reliable's sliding table saw subassembly
CN217941970U (en) Vertical finish milling machine
CN216264906U (en) Quick collecting and anti-splashing device for cutter machining waste residues
CN222843669U (en) Numerical control chuck row cutter lathe work protector
CN222686155U (en) Engineering construction waste material processing apparatus
CN221891021U (en) Anti-splashing mechanism and sawing fixing device
CN223545414U (en) Precise sawing device for furniture timber
CN218195707U (en) Toothless saw

Legal Events

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

Granted publication date: 20220121