A device for machining a sealing face of a gate valve

Abstract

The application relates to the technical field of gate valve grinding processing, and discloses a gate valve sealing end face processing device, which comprises a bottom plate; a grinding powder feeding mechanism, which is arranged on a supporting frame and comprises a feeding assembly; and a grinding table, the top of the grinding table is provided with a grinding groove, one side of the grinding groove is provided with a discharging hole, and one side of the discharging hole is provided with a material guiding nozzle. The gate valve sealing end face processing device can sweep the excessive grinding powder into the material guiding nozzle through the discharging hole by means of a brush when the grinding groove is full of grinding powder, the second handle is convenient for lifting the grinding powder storage tank, the circular ring base is convenient for placing the grinding powder storage tank on the supporting plate and just below the material guiding nozzle, the discharging opening is kept in a closed state at the moment, the excessive grinding powder and grinding debris can be swept into the grinding powder storage tank, and the grinding powder can be recycled.

Description

Technical Field

[0001] The invention relates to the technical field of gate valve grinding and processing, in particular to a gate valve sealing end face processing device. Background Art

[0002] The gate valve is an opening and closing component, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. After the gate valve shell is cast, its outer wall often needs to be polished.

[0003] In the prior art, such as the "A valve seat sealing surface grinding and repairing device" with Chinese authorization announcement number: CN119304734B, includes a valve body, flanges are fixedly connected on both sides of the valve body, and a valve seat body is fixedly connected inside the valve body, and also includes: a connecting plate is provided on the flange, a sliding plate is slidably connected inside the connecting plate, the sliding plate is connected to a lifting plate, the lifting plate is connected to a rotating sleeve, the rotating sleeve is fixedly connected to a rotating disk, and the rotating disk is provided with an inclined groove and a circular sliding groove; the lifting plate is connected to a support plate, and the rotating disk is connected below the rotating shaft; a third sliding groove is provided on the rotating disk, and a first grinding block and a second grinding block are connected to the third sliding groove; the present invention can adjust the extension length of the first grinding block and the second grinding block through the cooperation between the limit plate and the rotating disk, so that there is no need to disassemble the gate valve. It is only necessary to extend from one end and adjust the extension length of the first grinding block and the second grinding block to grind the sealing surface of the valve seat body.

[0004] In the above-mentioned patent, although the sealing surface of the valve seat body is ground by the first grinding block and the second grinding block, the grinding blocks are easily worn during the grinding process and need to be replaced regularly. The grinding accuracy is not as good as that of grinding powder, and the debris generated by the grinding blocks is inconvenient to clean, which affects the flexibility of grinding. Therefore, there is an urgent need for a gate valve sealing end face processing device. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to provide a gate valve sealing end face processing device to solve the problems raised in the above background technology that the grinding block is prone to wear during the grinding process and needs to be replaced regularly, the grinding accuracy is good without grinding powder, and the debris generated by the grinding block is inconvenient to clean, which affects the flexibility of grinding.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a gate valve sealing end surface processing device, comprising a base plate, a support frame is provided on one side of the top of the base plate, a grinding limit mechanism is provided below the support frame, and anti-slip feet are provided at the four corners of the bottom of the base plate;

[0009] A grinding powder feeding mechanism, the grinding powder feeding mechanism is arranged on a support frame, the grinding powder feeding mechanism includes a feeding assembly, the feeding assembly includes a grinding powder storage tank, a limiting clamping plate is provided on the top of the grinding powder storage tank, a first handle is provided on the top inner wall of the grinding powder storage tank, a circular base is provided at the bottom of the grinding powder storage tank, a connected discharge pipe is provided at the bottom of the grinding powder storage tank, and the discharge pipe is provided inside the circular base;

[0010] A grinding table is arranged on the other side of the top of the base plate, a grinding groove is provided on the top of the grinding table, a discharge hole is provided on one side of the grinding groove, a material guide nozzle is provided on one side of the discharge hole, a support plate is provided below the material guide nozzle, and the support plate is provided on one side of the base plate.

[0011] As a preferred technical solution of the present invention, the grinding limiting mechanism includes a fixed base plate, the fixed base plate is arranged on the top of the base plate, an electric cylinder is arranged on the top of the fixed base plate, a threaded column is arranged on the top of the electric cylinder, one end of the adjusting support plate is rotatably arranged on the top of the threaded column, and adjustment card holes corresponding to the threaded column are arranged at both ends of the adjusting support plate, and a limit stop frame corresponding to the adjusting support plate is provided on the outer wall of one side of the electric cylinder.

[0012] As a preferred technical solution of the present invention, a movable sliding hole is provided on the top of the support frame, and a movable slide adapted thereto is slidingly provided on the inner wall of the movable sliding hole, and a connecting shaft is provided on the top of the movable slide, and a gear is provided for rotating on the outside of the connecting shaft, and a rack is meshed and connected to one side of the gear, and the rack is provided on the top of the support frame.

[0013] As a preferred technical solution of the present invention, a protective cover is provided on the top of the grinding table, a sealing block adapted to the discharge hole is provided on the inner wall of the protective cover, a fixed support plate is provided on the outer periphery of the grinding table, and the protective cover is provided on the top of the fixed support plate, the material guide nozzle is also provided on the fixed support plate, a limiting clamp adapted to the protective cover is provided on the top of the fixed support plate, and a second handle is symmetrically provided on the top of the protective cover.

[0014] As a preferred technical solution of the present invention, a servo motor is provided at the top of the other end of the adjusting support plate, and the inner wall of the adjusting card hole located at the other end of the adjusting support plate is rotatably connected to the top of the eccentric shaft. The driving end of the servo motor is connected and fixed to the top of the eccentric shaft by setting a coupling, and the bottom end of the eccentric shaft is provided with a gate valve gate cover.

[0015] As an optimal technical solution of the present invention, a rotating slot is provided at the bottom of the discharge pipe, and a discharge card plate adapted thereto is rotatably provided on the inner wall of the rotating slot, a discharge port is provided on the discharge card plate, and the discharge port is also provided on the top of the rotating slot.

[0016] As a preferred technical solution of the present invention, an auxiliary push plate is symmetrically arranged at the bottom of the discharging card plate, a rotating card hole is arranged at the center of the circle of the discharging card plate, and a rotating card shaft adapted to the rotating card hole is arranged at the bottom of the rotating card slot. The discharging card plate is rotatably connected to the rotating card shaft by setting the rotating card hole.

[0017] As a preferred technical solution of the present invention, a rotating shaft is provided at the bottom of the movable slide, one end of a movable support plate is rotatably provided at the bottom of the rotating shaft, a lifting screw is provided at the bottom of the other end of the movable support plate, an anti-slip circular plate is provided at the bottom of the lifting screw, a lifting bracket is slidingly provided between the lifting screw and the anti-slip circular plate, a connecting card hole adapted for the lifting screw is provided on the lifting bracket, and the lifting bracket is adapted for the limiting card plate.

[0018] As a preferred technical solution of the present invention, the external thread of the lifting screw is connected with a fastening screw ring that is compatible with it, and the fastening screw ring is arranged at the bottom of the lifting bracket. The fastening screw ring is also threadedly connected to the top of the threaded column, and the threaded column fixes the adjusting support plate to the top of the electric cylinder by setting the fastening screw ring.

[0019] As a preferred technical solution of the present invention, a limit baffle adapted to the movable support plate is provided at the bottom of the support frame, and a limit bracket adapted to the movable support plate is provided on one side of the support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The gate valve sealing end surface processing device needs to use a threaded column to drive the adjustment support plate to adjust the angle when adding grinding powder, which is convenient for auxiliary feeding. After the adjustment is completed, the adjustment support plate needs to be reset. The limit stop frame is convenient for providing a position mark. When the adjustment support plate contacts the limit stop frame, the position of the adjustment support plate can be fixed by connecting the fastening screw ring with the threaded column;

[0022] 2. The gate valve sealing end surface processing device, the gear rotation and the rack meshing facilitate the linear movement of the movable slide, the limit baffle is convenient for limiting the feeding position of the movable support plate, and the limit bracket is convenient for limiting the storage position of the movable support plate. During this process, the movable slide needs to move from one side of the movable slide hole to the other side. By adjusting the position by rotating the shaft, the grinding powder storage tank can be moved to the top of the grinding groove for grinding powder feeding. The tightening screw ring is convenient for limiting the height of the grinding powder storage tank. The flow rate of the grinding powder feeding is controlled by controlling the overlap of the two semicircular discharge ports. The discharge pipe can be closed if the discharge ports do not overlap.

[0023] 3. The gate valve sealing end surface processing device, when there is too much grinding powder inside the grinding tank, the excess grinding powder can be swept into the guide nozzle through the brush and the discharge hole. The second handle is convenient for lifting the grinding powder storage tank. The circular ring base is convenient for placing the grinding powder storage tank on the support plate, just below the guide nozzle. At this time, the discharge port remains closed, and the excess grinding powder and grinding debris can be swept into the grinding powder storage tank, which is convenient for recycling the grinding powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the grinding powder feeding structure of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the bottom structure of a gate valve sealing end face processing device in one embodiment of the present invention;

[0027] Figure 4 This is a partial structural diagram of a gate valve sealing end face processing device in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the protective cover structure of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0029] Figure 6 This is a partial structural diagram of a gate valve sealing end face processing device in one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the exploded structure of a grinding limit mechanism of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0031] Figure 8 This is a schematic structural diagram of an abrasive powder feeding mechanism of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of a partially exploded structure of an abrasive powder feeding mechanism of a gate valve sealing end surface processing device in one embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the bottom structure of a feeding component of a gate valve sealing end face processing device in one embodiment of the present invention.

[0034] In the picture:

[0035] 1. Base plate; 2. Support frame;

[0036] 3. Grinding powder feeding mechanism; 301. Moving slide hole; 302. Moving slide; 303. Connecting shaft; 304. Gear; 305. Rack; 306. Rotating shaft; 307. Moving support plate; 308. Lifting screw; 309. Anti-slip circular plate; 310. Lifting bracket; 311. Connecting clamp hole; 32. Feeding assembly; 321. Grinding powder storage tank; 322. Limit clamp plate; 323. First handle; 324. Circular base; 325. Discharge pipe; 326. Rotating clamping slot; 327. Discharge clamp plate; 328. Discharge port; 329. Auxiliary push plate; 330. Rotating clamp hole; 331. Rotating clamping shaft; 313. Limit baffle; 314. Limit clamping bracket;

[0037] 4. Grinding limit mechanism; 401. Fixed base plate; 402. Electric cylinder; 403. Threaded column; 404. Adjustment support plate; 405. Adjustment hole; 406. Limit stop frame; 407. Servo motor; 408. Eccentric shaft; 409. Gate valve gate cover;

[0038] 5. Grinding table; 501. Grinding trough; 502. Discharge hole; 503. Material guide nozzle; 504. Protective cover; 505. Sealing block; 506. Fixed support plate; 507. Limiting clamp; 508. Second handle;

[0039] 6. Support plate; 7. Fastening screw ring; 8. Anti-slip feet. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1-10The present invention provides a technical solution: a gate valve sealing end face processing device, comprising a base plate 1, anti-slip support feet 8 at the four corners of the bottom of the base plate 1, the anti-slip support feet 8 can improve the stability of the base plate 1 support, a support frame 2 is provided on one side of the top of the base plate 1, and a grinding powder feeding mechanism 3 is provided on the support frame 2, a movable sliding hole 301 is provided on the top of the support frame 2, and a movable slide 302 adapted to the inner wall of the movable sliding hole 301 is slidably provided, and the movable slide 302 is limited to the movement of the movable slide 301. The top of the movable slide 302 is provided with a connecting shaft 303, and the external rotation of the connecting shaft 303 is provided with a gear 304, and one side of the gear 304 is meshed and connected with a rack 305, and the rack 305 is provided on the top of the support frame 2, and the movable slide 302 is connected to the gear 304 through the connecting shaft 303, which is convenient for driving the gear 304 to rotate, and the rotation of the gear 304 is meshed with the rack 305 to facilitate the linear movement of the movable slide 302.

[0042] The bottom of the movable slide 302 is provided with a rotating shaft 306, and the bottom of the rotating shaft 306 is rotatably provided with one end of a movable support plate 307. The bottom of the support frame 2 is provided with a limit baffle adapted to the movable support plate 307, and one side of the support frame 2 is provided with a limit bracket 314 adapted to the movable support plate 307. The rotating shaft 306 is convenient for driving the movable support plate 307 to rotate and adjust, and the limit baffle 313 is convenient for limiting the feeding position of the movable support plate 307, and the limit bracket 314 is convenient for limiting the storage position of the movable support plate 307. During this process, the movable slide 302 needs to move from one side of the movable slide hole 301 to the other side. By adjusting the position by the rotating shaft 306, the grinding powder storage tank 321 can be moved to the top of the grinding groove 501 for grinding powder feeding.

[0043] A lifting screw 308 is provided at the bottom of the other end of the movable support plate 307, and an anti-slip circular plate 309 is provided at the bottom of the lifting screw 308. A lifting bracket 310 is slidingly provided between the lifting screw 308 and the anti-slip circular plate 309. The lifting bracket 310 is provided with a connecting card hole 311 that is compatible with the lifting screw 308. The lifting bracket 310 is compatible with the limiting card plate 322. The external thread of the lifting screw 308 is connected with a fastening screw ring 7 that is compatible with it, and the fastening screw ring 7 is provided at the bottom of the lifting bracket 310. The lifting bracket 310 is convenient for lifting and lowering between the lifting screw 308 and the anti-slip circular plate 309 through the connecting card hole 311. The fastening screw ring 7 supports the bottom of the lifting bracket 310. The rotation of the thread facilitates the control of the lifting and lowering of the fastening screw ring 7, thereby facilitating the limiting of the height of the lifting bracket 310.

[0044] Furthermore, the feeding component 32 includes a grinding powder storage tank 321, and a limiting card plate 322 is provided on the top of the grinding powder storage tank 321. The grinding powder storage tank 321 is open at the top, and the limiting card plate 322 is convenient for hanging the grinding powder storage tank 321 on the ring of the lifting bracket 310 for limiting the position. A connected discharge pipe 325 is provided at the bottom of the grinding powder storage tank 321, and the discharge pipe 325 is arranged inside the ring base 324. The discharge pipe 325 is convenient for discharging the grinding powder. A rotating slot 326 is provided at the bottom of the discharge pipe 325, and a discharge card plate 327 adapted to the inner wall of the rotating slot 326 is rotatably provided. A discharge port 328 is provided on the discharge card plate 327, and the discharge port 328 is also provided on the top of the rotating slot 326. An auxiliary push plate 329 is symmetrically provided at the bottom of the discharge card plate 327. The center of the material clamping plate 327 is provided with a rotating clamping hole 330, and the bottom of the rotating clamping slot 326 is provided with a rotating clamping shaft 331 adapted to the rotating clamping hole 330. The discharging clamping plate 327 is rotatably connected to the rotating clamping shaft 331 by setting the rotating clamping hole 330. The rotating clamping slot 326 is provided with a semicircular discharge port 328 on one half, and the other half remains closed. The discharging clamping plate 327 is a circular clamping plate adapted to the rotating clamping slot 326, and is also provided with a semicircular discharge port 328 on it. The rotating clamping hole 330 cooperates with the rotating shaft 306 to conveniently drive the discharging clamping plate 327 to rotate. The auxiliary push plate 329 facilitates manual rotation of the discharging clamping plate 327, and the flow rate of the grinding powder feeding is controlled by controlling the overlap size of the two semicircular discharge ports 328. The discharge pipe 325 can be closed if the discharge ports 328 do not overlap.

[0045] The grinding table 5 is arranged on the other side of the top of the bottom plate 1, and a grinding groove 501 is provided on the top of the grinding table 5. A protective cover 504 is provided on the top of the grinding table 5. A fixed support plate 506 is provided on the periphery of the grinding table 5, and the protective cover 504 is arranged on the top of the fixed support plate 506. A limiting clamp 507 adapted to the protective cover 504 is provided on the top of the fixed support plate 506. The grinding groove 501 is convenient for grinding the gate valve gate. The protective cover 504 is placed on the fixed support plate 506. On the plate 506, the limiting clamping block 507 is convenient for limiting the protective cover 504, so as to provide protection for the top of the grinding tank 501. The guide nozzle 503 is also set on the fixed support plate 506. The top of the protective cover 504 is symmetrically provided with a second handle 508. A discharge hole 502 is provided on one side of the grinding tank 501. A sealing block 505 adapted to the discharge hole 502 is provided on the inner wall of the protective cover 504. A guide nozzle 503 is provided on one side of the discharge hole 502. The guide nozzle The bottom of the grinding bowl 321 is provided with a supporting plate 6, and the supporting plate 6 is provided on one side of the bottom plate 1. The top inner wall of the grinding powder storage tank 321 is provided with a first handle 323, and the bottom of the grinding powder storage tank 321 is provided with a circular ring base 324. When there is too much grinding powder in the grinding groove 501, the protective cover 504 can be lifted by the first handle 323, and the sealing block 505 releases the limit on the discharge port 328. At the same time, the sealing block 505 can also limit the protective cover 504. After lifting, the grinding groove 501 is opened, and the excess grinding powder can be swept into the guide nozzle 503 by a brush in combination with the discharge hole 502. The second handle 508 makes it easy to lift the grinding powder storage tank 321, and the circular ring base 324 makes it easy to place the grinding powder storage tank 321 on the supporting plate 6, just below the guide nozzle 503. At this time, the discharge port 328 remains closed, and the excess grinding powder and grinding debris can be swept into the grinding powder storage tank 321, which is convenient for recycling the grinding powder.

[0046] A grinding limit mechanism 4 is provided below the support frame 2. The grinding limit mechanism 4 includes a fixed base plate 401, which is provided on the top of the base plate 1. An electric cylinder 402 is provided on the top of the fixed base plate 401. A threaded column 403 is provided on the top of the electric cylinder 402. One end of the adjusting support plate 404 is provided on the top of the threaded column 403. Adjustment holes 405 that match the threaded column 403 are provided at both ends of the adjusting support plate 404. An outer wall of one side of the electric cylinder 402 is provided. There is a limit stop frame 406 that is compatible with the adjustment support plate 404, and the fastening screw ring 7 is also threadedly connected to the top of the threaded column 403. The threaded column 403 fixes the adjustment support plate 404 to the top of the electric cylinder 402 by setting the fastening screw ring 7. The electric cylinder 402 can drive the adjustment support plate 404 to rise and fall, which is convenient for applying pressure to the gate valve gate grinding and facilitating the grinding process. When the grinding powder is added, the grinding powder feeding mechanism 3 and the grinding limit mechanism 4 are separated in position, and the threaded column 403 is required to bring The support plate 404 can be adjusted to adjust the angle to facilitate auxiliary feeding. After the adjustment is completed, the support plate 404 needs to be reset. The limit stop frame 406 is convenient for providing a position mark. When the support plate 404 contacts the limit stop frame 406, the position of the support plate 404 can be fixed by fastening the screw ring 7 and the threaded column 403 to facilitate flexible adjustment. A servo motor 407 is provided on the top of the other end of the support plate 404, and the inner wall of the adjustment card hole 405 at the other end of the support plate 404 rotates. The top of the eccentric shaft 408 is connected, and the driving end of the servo motor 407 is fixedly connected to the top of the eccentric shaft 408 by setting a coupling. The bottom end of the eccentric shaft 408 is provided with a gate valve gate cover 409. The servo motor 407 drives the eccentric shaft 408 to rotate, and the eccentric shaft 408 drives the gate valve gate cover 409 to rotate and grind. The gate valve gate cover 409 is fixed on the top of the gate valve gate. The gate valve gate cover 409 is pressed down to drive the gate valve gate to contact the grinding groove 501, which is convenient for grinding.

[0047] Working principle: The servo motor 407 drives the eccentric shaft 408 to rotate, and the eccentric shaft 408 drives the gate valve gate cover 409 to rotate. The gate valve gate cover 409 is fixed on the top of the gate valve gate. The gate valve gate cover 409 is pressed down to drive the gate valve gate to contact the grinding groove 501. The electric cylinder 402 can drive the adjustment support plate 404 to rise and fall, which is convenient for applying pressure to the gate valve gate grinding. When adding grinding powder, it is necessary to drive the adjustment support plate 404 to adjust the angle through the threaded column 403 to facilitate auxiliary feeding. After the adjustment is completed, the adjustment support plate 404 needs to be reset. The limit stop frame 406 is convenient for providing position identification. When the adjustment support plate 404 contacts the limit stop frame 406, the position of the adjustment support plate 404 can be fixed by fastening the screw ring 7 and connecting it with the threaded column 403.

[0048] The rotation of the gear 304 and the engagement of the rack 305 facilitate the linear movement of the movable slide 302, and the limit baffle 313 facilitates the limiting of the feeding position of the movable support plate 307, and the limit bracket 314 facilitates the storage position of the movable support plate 307. During this process, the movable slide 302 needs to move from one side of the movable slide hole 301 to the other side. By adjusting the position by rotating the shaft 306, the grinding powder storage tank 321 can be moved to the top of the grinding groove 501 for grinding powder feeding. The rotation of the thread facilitates the control of the lifting and lowering of the fastening screw ring 7, thereby facilitating the limitation of the height of the grinding powder storage tank 321. The auxiliary push plate 329 facilitates the manual rotation of the discharge clamping plate 327, and the flow rate of the grinding powder feeding is controlled by controlling the overlap of the two semicircular discharge ports 328. The discharge pipe 325 can be closed if the discharge ports 328 do not overlap.

[0049] The protective cover 504 is placed on the fixed support plate 506, and the limiting clamp 507 is convenient for limiting the protective cover 504 to provide protection for the top of the grinding tank 501. When there is too much grinding powder inside the grinding tank 501, the protective cover 504 can be lifted by the first handle 323, and the sealing block 505 releases the limit on the discharge port 328. The excess grinding powder can be swept into the guide nozzle 503 through the brush in conjunction with the discharge hole 502. The second handle 508 makes it convenient to lift the grinding powder storage tank 321, and the annular base 324 makes it convenient to place the grinding powder storage tank 321 on the support plate 6, just below the guide nozzle 503. At this time, the discharge port 328 remains closed, and the excess grinding powder and grinding debris can be swept into the grinding powder storage tank 321, which is convenient for recycling the grinding powder.

[0050] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A gate valve sealing end surface processing device, characterized in that: include: A bottom plate (1), a support frame (2) is provided on one side of the top of the bottom plate (1), and a grinding limit mechanism (4) is provided below the support frame (2); A grinding powder feeding mechanism (3) is provided on a support frame (2), the grinding powder feeding mechanism (3) comprises a feeding assembly (32), the feeding assembly (32) comprises a grinding powder storage tank (321), a limiting clamping plate (322) is provided on the top of the grinding powder storage tank (321), a first handle (323) is provided on the top inner wall of the grinding powder storage tank (321), a circular base (324) is provided on the bottom of the grinding powder storage tank (321), and the grinding powder storage tank (321) is provided with a plurality of handles (323). A discharge pipe (325) is provided at the bottom of the grinding storage tank (321), and the discharge pipe (325) is provided inside the annular base (324). A rotating slot (326) is provided at the bottom of the discharge pipe (325). A discharge card (327) adapted to the rotating slot (326) is provided on the inner wall of the rotating slot (326). A discharge port (328) is provided on the discharge card (327), and the discharge port (328) is also provided at the top of the rotating slot (326). The grinding limit mechanism (4) comprises a fixed base plate (401), the fixed base plate (401) being arranged on the top of the base plate (1), an electric cylinder (402) being arranged on the top of the fixed base plate (401), a threaded column (403) being arranged on the top of the electric cylinder (402), one end of an adjustment support plate (404) being rotatably arranged on the top of the threaded column (403), adjustment holes (405) being adapted to the threaded column (403) being arranged at both ends of the adjustment support plate (404), and a limit stop frame (406) being adapted to the adjustment support plate (404) being arranged on an outer wall of one side of the electric cylinder (402); A grinding table (5), wherein the grinding table (5) is arranged on the other side of the top of the bottom plate (1), a grinding groove (501) is provided on the top of the grinding table (5), a discharge hole (502) is provided on one side of the grinding groove (501), a material guide nozzle (503) is provided on one side of the discharge hole (502), a support plate (6) is provided below the material guide nozzle (503), and the support plate (6) is arranged on one side of the bottom plate (1), a protective cover (504) is provided on the top of the grinding table (5), and the protective cover ( The inner wall of the grinding table (504) is provided with a sealing block (505) adapted to the discharge hole (502), the outer periphery of the grinding table (5) is provided with a fixed support plate (506), and the protective cover (504) is provided on the top of the fixed support plate (506), the guide nozzle (503) is also provided on the fixed support plate (506), the top of the fixed support plate (506) is provided with a limiting clamping block (507) adapted to the protective cover (504), and the top of the protective cover (504) is symmetrically provided with a second handle (508).

2. A gate valve sealing end surface processing device according to claim 1, characterized in that: A movable sliding hole (301) is provided at the top of the support frame (2), a movable sliding frame (302) adapted thereto is slidably provided on the inner wall of the movable sliding hole (301), a connecting shaft (303) is provided at the top of the movable sliding frame (302), a gear (304) is provided on the outside of the connecting shaft (303), one side of the gear (304) is meshedly connected with a rack (305), and the rack (305) is provided at the top of the support frame (2).

3. The gate valve sealing end surface processing device according to claim 1, characterized in that: A servo motor (407) is provided at the top of the other end of the adjusting support plate (404), and the top end of the eccentric shaft (408) is rotatably connected to the inner wall of the adjusting clamping hole (405) at the other end of the adjusting support plate (404). The driving end of the servo motor (407) is connected and fixed to the top end of the eccentric shaft (408) by providing a coupling, and a gate valve gate clamping cover (409) is provided at the bottom end of the eccentric shaft (408).

4. The gate valve sealing end surface processing device according to claim 1, characterized in that: An auxiliary push plate (329) is symmetrically provided at the bottom of the discharge card plate (327), a rotation clamping hole (330) is provided at the center of the circle of the discharge card plate (327), and a rotation clamping shaft (331) adapted to the rotation clamping hole (330) is provided at the bottom of the rotation clamping slot (326). The discharge card plate (327) is rotationally connected to the rotation clamping shaft (331) by providing the rotation clamping hole (330).

5. The gate valve sealing end surface processing device according to claim 2, characterized in that: A rotating shaft (306) is provided at the bottom of the movable slide (302), one end of a movable support plate (307) is rotatably provided at the bottom of the rotating shaft (306), a lifting screw (308) is provided at the bottom of the other end of the movable support plate (307), an anti-slip circular plate (309) is provided at the bottom of the lifting screw (308), a lifting bracket (310) is slidably provided between the lifting screw (308) and the anti-slip circular plate (309), a connecting card hole (311) adapted to the lifting screw (308) is provided on the lifting bracket (310), and the lifting bracket (310) is adapted to the limiting card plate (322).

6. The gate valve sealing end surface processing device according to claim 5, characterized in that: The external thread of the lifting screw (308) is connected to a fastening screw ring (7) adapted thereto, and the fastening screw ring (7) is arranged at the bottom of the lifting bracket (310). The fastening screw ring (7) is also threadedly connected to the top of the threaded column (403). The threaded column (403) fixes the adjustment support plate (404) to the top of the electric cylinder (402) by setting the fastening screw ring (7).

7. The gate valve sealing end surface processing device according to claim 1, characterized in that: The bottom of the support frame (2) is provided with a position-limiting baffle (313) adapted to the movable support plate (307), and one side of the support frame (2) is provided with a position-limiting bracket (314) adapted to the movable support plate (307).

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