Power distribution cabinet surface polishing device
By designing rotatable grinding components and complex transmission systems, the problem that existing distribution cabinet grinding devices can only polish one side of the board is solved, and efficient grinding of double-sided and multi-sided corners is achieved, which improves production efficiency and accuracy, and reduces human error and labor intensity.
Patent Information
- Application Number
- CN202510213091.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the existing distribution cabinet grinding device handles the cut plate, the fixed fixture design can only be polished on one side of the plate, which lacks flexibility, resulting in low production efficiency, cumbersome operation, low precision, and increases labor intensity and occupational injury risk.
A surface grinding device for distribution cabinets is designed, using rotatable grinding components, and the moving frame and grinding roller are driven by electric guide rails and cylinders, combined with belt transmission and gear system to achieve efficient grinding of double-sided and multi-sided corners of the plate.
The device greatly improves work efficiency and polishing accuracy, reduces manual operation time and energy, reduces artificial errors, ensures comprehensive processing of the board, and improves product quality and consistency.
Smart Images

Figure CN119681736A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of power distribution cabinet production, and in particular to a surface polishing device for a power distribution cabinet. Background Art
[0002] The surface grinding device for switchboards is specially designed for processing switchboard shells, especially for surface treatment of cut plates before assembly. The equipment is mainly used to improve the surface quality of metal parts, by removing burrs, rust, old paint layers and other unevenness, to ensure the safety and appearance of the switchboard. In addition, effective surface treatment can also enhance the heat dissipation performance and electrical insulation effect of the switchboard. This grinding device is essential to maintain the functional integrity of the switchboard and extend its service life.
[0003] At present, the distribution cabinet grinding devices on the market have significant limitations when processing cut plates. Since the fixture for fixing the plate adopts a fixed installation form, this design means that only one side of the plate can be operated during the grinding process. When the opposite side or corner of the plate needs to be polished, the operator must manually release the fixture, flip the plate and re-fix it. This process is not only time-consuming but also increases labor intensity, resulting in a significant decrease in production efficiency. Traditional fixed fixtures lack flexibility and cannot meet the needs of multi-angle grinding. Each time the grinding surface is changed, the steps need to be repeated, which not only increases the operation time, but also introduces human errors and affects the grinding accuracy. Frequent manual adjustments and re-fixing may cause additional physical burden on the operator and increase the risk of occupational injuries, especially in the case of long-term operation, which is not convenient to use. Summary of the invention
[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a surface grinding device for a distribution cabinet, which can avoid the significant limitations of the distribution cabinet grinding devices on the market when processing cut plates. Since the fixture is fixedly installed, only one side can be polished. If the opposite side or corners need to be polished, the production efficiency is reduced. The traditional fixture lacks flexibility, and the operation steps need to be repeated each time the polishing surface is changed, which increases time costs and human errors, and is inconvenient to use.
[0005] This application is implemented as follows: The present application provides a surface grinding device for a distribution cabinet, comprising a processing table, wherein box doors are installed on the left and right sides of the front side of the processing table, a grinding assembly is arranged on the top of the processing table, and the grinding assembly includes a long box, and the left and right sides of the top of the long box are connected to electric guide rails, and the bottom of the electric guide rails is connected to a first cylinder, and a plurality of positioning plates are installed on the top of the processing table, and the output end of the first cylinder is fixedly connected to a moving frame, and the inner cavity of the moving frame is rotatably connected to a grinding roller, and the front side of the moving frame is fixedly connected to an installation box, the inner cavity of the installation box is bolted to a first motor, and the inner cavity of the long box is bolted to a second motor, and the inner cavity of the positioning plate is rotatably connected to a first rotating rod, and the output shaft of the second motor and the surface of the first rotating rod are respectively connected to pulleys, and the two pulleys are connected by belt transmission, and the inner cavity of the positioning plate is rotatably connected to a second rotating rod, and the surfaces of the first rotating rod and the adjacently installed second rotating rod are respectively fixedly connected to two meshing gears.
[0006] According to a surface polishing device for a distribution cabinet in an embodiment of the present application, a disc is fixedly connected to the surface of the second rotating rod, a welding frame is fixedly connected to the surface of the disc, a connecting frame is fixedly connected to the front and rear sides of the bottom of the welding frame, and a push plate is slidably connected to the inner cavity of the connecting frame.
[0007] According to a surface grinding device for a distribution cabinet in an embodiment of the present application, both front and rear sides of the inner cavity of the welding frame are rotatably connected with a running plate, one side of the running plate is connected with a first short rod, the surface of the first short rod is slidably connected to the surface of a push plate, the bottom of the push plate is fixedly connected to a limit plate, the inner cavity of the limit plate is slidably connected with a sliding rod, and one end of the sliding rod passes through to the outer side of the front side of the limit plate.
[0008] According to a surface polishing device for a distribution cabinet in an embodiment of the present application, a fixed block is slidably connected to the bottom of the inner cavity of the limit plate, and one side of the fixed block extends to the outside of the limit plate, and a fixed rod is fixedly connected to the front side of the fixed block.
[0009] According to a surface polishing device for a distribution cabinet in an embodiment of the present application, clamping blocks are fixedly connected to the left and right sides of the rear side of the fixed block, a plurality of clamping grooves in contact with the clamping blocks are provided on the left and right sides of the front side of the connecting frame, and a return spring is provided on the surface of the sliding rod.
[0010] According to a surface polishing device for a distribution cabinet in an embodiment of the present application, the two ends of the reset spring are respectively fixedly connected to the inner cavity of the limit plate and the surface of the fixed block, the top of the limit plate is fixedly connected to a telescopic rod, and the surface of the sliding rod is provided with a plurality of clamping holes used in conjunction with the telescopic rod.
[0011] According to a surface grinding device for a distribution cabinet in an embodiment of the present application, a second short rod is connected to one side of the running plate, and symmetrically arranged slide plates are slidably connected to the front and rear sides of the inner cavity of the welding frame, one end of the second short rod is slidably connected to the inner side of the slide plate, and a clamping plate is bolted to the surface of the slide plate, and the surface of the clamping plate is slidably connected to the surface of the welding frame, and fans are installed on the left and right sides of the inner cavity at the bottom of the processing table.
[0012] According to a surface grinding device for a distribution cabinet in an embodiment of the present application, a protection box is fixedly connected to the left and right sides of the inner cavity of the bottom of the processing table, a second cylinder is fixedly connected to the inner cavity of the protection box, a first screen plate is fixedly connected to the left and right sides of the inner side of the processing table, a second screen plate is fixedly connected to the output end of the second cylinder, and the second screen plate is located at the center of the inner cavity of the first screen plate, a welding rod is fixedly connected to the inner cavity of the bottom of the processing table, a guide rod is slidably connected to the surface of the welding rod, and the fan is used in conjunction with the first screen plate and the second screen plate.
[0013] The beneficial effects of the present invention are as follows: through the setting of the grinding component, efficient double-sided and multi-corner grinding of the plate after cutting before assembly of the distribution cabinet is realized, reducing the tedious steps of users frequently flipping and re-fixing the plate in the traditional process, greatly improving the work efficiency and grinding accuracy, ensuring that the comprehensive processing of the plate can be completed in one clamping process, the user only needs to put the plate in place and lock the position of the plate through the grinding component. In addition, the grinding component can rotate the plate to the required angle without releasing the clamp, ensuring that both sides and corners of the plate are polished, which not only saves time and energy for manual operation, but also reduces the human errors that may be introduced due to manual flipping and repositioning of the plate, thereby improving the quality and consistency of the product and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 is a three-dimensional schematic diagram of the overall structure according to an embodiment of the present application; Figure 2 is a three-dimensional schematic diagram of a positioning plate structure according to an embodiment of the present application; Figure 3 is a three-dimensional schematic diagram of a first motor and a mounting box structure in a disassembled state according to an embodiment of the present application; Figure 4is a schematic side cross-sectional view of a positioning plate structure according to an embodiment of the present application; Figure 5 is a three-dimensional schematic diagram of a positioning plate structure in a disassembled state according to an embodiment of the present application; Figure 6 is a three-dimensional schematic diagram of a disc structure according to an embodiment of the present application; Figure 7 is a three-dimensional schematic diagram of a welding frame structure according to an embodiment of the present application; Figure 8 is a three-dimensional schematic diagram of a skateboard structure according to an embodiment of the present application; Fig. 9 is a three-dimensional schematic diagram of a connection frame structure according to an embodiment of the present application; Fig.10 is a three-dimensional schematic diagram of a sliding rod structure according to an embodiment of the present application; Fig.11 is a three-dimensional schematic diagram of a disassembled state of a fixed block structure according to an embodiment of the present application; Fig.12 It is a schematic side cross-sectional view of a telescopic rod structure according to an embodiment of the present application.
[0016] In the figure: 1, processing table; 2, box door; 3, grinding assembly; 31, electric guide rail; 32, first cylinder; 33, positioning plate; 34, moving frame; 35, grinding roller; 36, installation box; 37, first motor; 38, long box; 39, second motor; 310, first rotating rod; 311, pulley; 312, second rotating rod; 313, gear; 314, disc; 315, welding frame; 316, connecting frame; 317, push plate; 318, running plate; 3 19. First short rod; 320. Limit plate; 321. Slide rod; 322. Fixed block; 323. Fixed rod; 324. Block; 325. Slot; 326. Return spring; 327. Telescopic rod; 328. Hole; 329. Second short rod; 330. Clamping plate; 331. Fan; 332. Protective box; 333. First screen plate; 334. Welding rod; 335. Second cylinder; 336. Second screen plate; 337. Guide rod; 338. Slide plate. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
[0018] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0019] like Figure 1-Figure 12As shown, a surface grinding device for a distribution cabinet according to an embodiment of the present application includes a processing table 1, and box doors 2 are installed on the left and right sides of the front side of the processing table 1. A grinding assembly 3 is arranged on the top of the processing table 1, and the grinding assembly 3 includes a long box 38, and the bottom of the long box 38 is fixedly connected to the top of the processing table 1, and the left and right sides of the top of the long box 38 are connected to electric guide rails 31, and the bottom of the electric guide rails 31 is connected to a first cylinder 32. A plurality of positioning plates 33 are installed on the top of the processing table 1, and the total number of the positioning plates 33 is three. The bottom of the positioning plates 33 is fixedly connected to the top of the processing table 1, and is respectively located on the left and right sides and the center of the top of the processing table 1. The output end of the first cylinder 32 is fixedly connected to a moving frame 34, and the inner cavity of the moving frame 34 is rotatably connected to the grinding Roller 35, a sensor is installed on the surface of the moving frame 34 to confirm that the moving frame 34 carries the grinding roller 35 and moves to a suitable height position for easy use. The front side of the moving frame 34 is fixedly connected with an installation box 36, the inner cavity of the installation box 36 is bolted with a first motor 37, the inner cavity of the long box 38 is bolted with a second motor 39, the inner cavity of the positioning plate 33 is rotatably connected with a first rotating rod 310, the output shaft of the second motor 39 and the surface of the first rotating rod 310 are respectively connected with pulleys 311, and the two pulleys 311 are connected through belt transmission, the inner cavity of the positioning plate 33 is rotatably connected with a second rotating rod 312, and the surfaces of the first rotating rod 310 and the adjacently installed second rotating rod 312 are respectively fixedly connected with two meshing gears 313 The surface of the second rotating rod 312 is fixedly connected with a disc 314, and the surface of the disc 314 is fixedly connected with a welding frame 315. The top and bottom of the welding frame 315 are provided with a first open cavity, and the front and rear sides of the bottom of the welding frame 315 are fixedly connected with a connecting frame 316. The top and left and right sides of the connecting frame 316 are provided with a second open cavity, so that the first open cavity and the second open cavity facilitate the operation of the internal installation parts of the connecting frame 316 and the welding frame 315, and avoid the occurrence of movement collision. The inner cavity of the connecting frame 316 is slidably connected with a push plate 317, and the front and rear sides of the inner cavity of the welding frame 315 are rotatably connected with a running plate 318. One side of the running plate 318 is connected to a first short rod 319, and the surface of the first short rod 319 The surface of the limit plate 320 is slidably connected to the surface of the push plate 317, and the bottom of the push plate 317 is fixedly connected to the limit plate 320, and the inner cavity of the limit plate 320 is slidably connected to the sliding rod 321, and one end of the sliding rod 321 penetrates to the outside of the front side of the limit plate 320, and the bottom of the inner cavity of the limit plate 320 is slidably connected to the fixed block 322, and one side of the fixed block 322 extends to the outside of the limit plate 320, wherein one side of the limit plate 320 is provided with a sliding cavity that is convenient for the movement of the limit plate 320, so as to avoid collision during the movement of the limit plate 320, the front side of the fixed block 322 is fixedly connected to the fixed rod 323, and the surface of the fixed rod 323 is fixedly connected to a pull ring that is convenient for the user to pull, and the left and right sides of the rear side of the fixed block 322 are fixedly connected to the card block 324.A plurality of slots 325 contacting the block 324 are provided on both the left and right sides of the front side of the connection frame 316, and a return spring 326 is sleeved on the surface of the slide bar 321; like Figure 2-Figure 12 As shown, the two ends of the return spring 326 are fixedly connected to the inner cavity of the limit plate 320 and the surface of the fixed block 322 respectively, the top of the limit plate 320 is fixedly connected to the telescopic rod 327, and the surface of the slide rod 321 is provided with a plurality of clamping holes 328 used in conjunction with the telescopic rod 327, as shown in FIG. Fig.12 As shown, the telescopic rod 327 includes a rod sleeve, a rod member, a plate member and a spring, wherein the inner cavity of the rod sleeve is slidably connected to the plate member, the bottom of the inner cavity of the rod sleeve is fixedly connected to the spring, one end of the spring is fixedly connected to the surface of the plate member, the surface of the plate member is fixedly connected to the rod member, and one end of the rod member passes through the outer side of the rod sleeve and is used in conjunction with the clamping hole 328, so as to facilitate the locking of the sliding rod 321 during movement, and facilitate the user to engage and lock the clamping block 324 and the clamping groove 325, a second short rod 329 is connected to one side of the running plate 318, and the front and rear sides of the inner cavity of the welding frame 315 are slidably connected to the symmetrically arranged slide plates 338, one end of the second short rod 329 is slidably connected to the inner side of the slide plate 338, and the surface of the slide plate 338 is bolted to a clamping plate 330, and the clamping plate 330 is as shown in FIG. Figure 1 and Figure 2 As shown, a plurality of clamping plates 330 are relatively connected to the four corners of the distribution cabinet plate to clamp the distribution cabinet plate of different widths, so as to clamp the distribution cabinet plate of different widths for easy grinding. The surface of the clamping plate 330 is slidably connected to the surface of the welding frame 315. Fans 331 are installed on the left and right sides of the inner cavity at the bottom of the processing table 1. The fan 331 is selected as an industrial fan type, so that the waste chips generated by grinding can be sucked in and discharged. The left and right sides of the inner cavity at the bottom of the processing table 1 are fixedly connected with a protective box 332, and the inner cavity of the protective box 332 is fixedly connected with a second cylinder 335. The left and right sides of the inner side of the processing table 1 are fixedly connected with a first screen plate 333, and the output end of the second cylinder 335 is fixedly connected with a second screen plate 336, and the second screen plate 336 is located at the center of the inner cavity of the first screen plate 333. The left and right sides of the inner side of the second screen plate 336 are fixedly connected with inclined plates, so that waste chips can fall into the inner cavity at the bottom of the processing table 1, so that waste chips can be collected centrally. A welding rod 334 is fixedly connected to the inner cavity at the bottom of the processing table 1, and a guide rod 337 is slidably connected to the surface of the welding rod 334. The top of the guide rod 337 and the output end of the second cylinder 335 are fixedly connected to the bottom of the inclined plate, so that the second screen plate 336 can be ejected to contact the bottom of the distribution cabinet plate, thereby facilitating the user to load and unload the distribution cabinet plate. The screen apertures of the first screen plate 333 and the second screen plate 336 are selected to have larger apertures, so that waste chips can fall into the inner cavity at the bottom of the processing table 1 for centralized storage. The fan 331 is used in conjunction with the first screen plate 333 and the second screen plate 336. Specifically, the user first places the polished small power distribution cabinet assembly plate on the top of the second screen plate 336. Next, manually move the telescopic rod 327 upward to release the locking state of the slide bar 321. Subsequently, pull the fixed rod 323 forward to drive the fixed block 322 and the clamping block 324 out of the clamping slot 325, thereby unlocking the clamping state. After unlocking, the user manually or using an external tool such as a jack to lift the limit plate 320 upward. When the limit plate 320 rises, it drives the push plate 317 to move synchronously, and the push plate 317 pushes the first short rod 319 and the running plate 318 to swing around the rotating connection of the welding frame 315. This action causes the running plate 318 to drive the second short rod 329 to move, and pushes the two slides 338 to move back to each other in the inner cavity of the slide plate 338, and finally releases the clamping of the plate through the clamping plate 330. After the clamping is released, the second cylinder 335 is started, and its output end pushes the second screen plate 336 to move downward, and the plate is lowered to a suitable position for easy removal. If grinding is to be performed, ensure that the height of the plate is greater than the clamping plate 330 to ensure that the grinding roller 35 can contact both sides of the plate, start the electric guide rail 31, drive the first cylinder 32 to move, and the output end of the first cylinder 32 pushes the moving frame 34, the grinding roller 35 and the first motor 37 to descend. Start the first motor 37 to drive the grinding roller 35 to rotate and start grinding the surface and corners of the plate. When other surfaces and corners need to be polished, start the second motor 39 to drive the pulley 311 to rotate, and then rotate the first rotating rod 310 and the gear 313 in turn. The gear 313 drives the second rotating rod 312 to rotate, and finally the disc 314 rotates, causing the clamping plate 330 and the plate thereon to rotate accordingly. In this way, the grinding roller 35 can efficiently grind multiple corners and double sides of the plate, improving the convenience of operation and the grinding effect.
[0020] Specifically, the working principle of the surface grinding device of the distribution cabinet is as follows: the user puts the plate cut before assembling the distribution cabinet into the grinding component 3, starts the grinding component 3 to clamp the plates of different widths, and can flip the plates after clamping, so that the grinding component 3 can grind both sides and multiple corners of the plates. During or after grinding, start the fan 331, and the fan 331 sucks the impurities generated by grinding into the inner cavity at the bottom of the processing table 1 for centralized storage. When the impurities need to be taken out, the user opens the box door 2 and takes out the internal impurities, which is convenient for use and reduces the impurities generated during grinding, making it easy to use.
[0021] The electronic components and models used in the present invention can be based on actual needs.
[0022] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0023] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A surface polishing device for a power distribution cabinet, characterized in that: The invention comprises a processing table (1), wherein box doors (2) are installed on the left and right sides of the front side of the processing table (1), a grinding assembly (3) is arranged on the top of the processing table (1), and the grinding assembly (3) comprises a long box (38), and the left and right sides of the top of the long box (38) are connected to electric guide rails (31), and the bottom of the electric guide rail (31) is connected to a first cylinder (32), and a plurality of positioning plates (33) are installed on the top of the processing table (1), and the output end of the first cylinder (32) is fixedly connected to a moving frame (34), and the inner cavity of the moving frame (34) is rotatably connected to a grinding roller (35), and the front side of the moving frame (34) is fixedly connected to a mounting box. (36), the inner cavity of the installation box (36) is bolted to a first motor (37), the inner cavity of the long box (38) is bolted to a second motor (39), the inner cavity of the positioning plate (33) is rotatably connected to a first rotating rod (310), the output shaft of the second motor (39) and the surface of the first rotating rod (310) are respectively connected to pulleys (311), and the two pulleys (311) are connected via a belt drive, the inner cavity of the positioning plate (33) is rotatably connected to a second rotating rod (312), and the surfaces of the first rotating rod (310) and the adjacently installed second rotating rod (312) are respectively fixedly connected to two meshing gears (313).
2. A surface polishing device for a power distribution cabinet according to claim 1, characterized in that: A disc (314) is fixedly connected to the surface of the second rotating rod (312), a welding frame (315) is fixedly connected to the surface of the disc (314), a connecting frame (316) is fixedly connected to the front and rear sides of the bottom of the welding frame (315), and a push plate (317) is slidably connected to the inner cavity of the connecting frame (316).
3. A surface polishing device for a power distribution cabinet according to claim 2, characterized in that: The front and rear sides of the inner cavity of the welding frame (315) are rotatably connected to a running plate (318), one side of the running plate (318) is connected to a first short rod (319), the surface of the first short rod (319) is slidably connected to the surface of the push plate (317), the bottom of the push plate (317) is fixedly connected to a limit plate (320), the inner cavity of the limit plate (320) is slidably connected to a sliding rod (321), and one end of the sliding rod (321) passes through to the outer side of the front side of the limit plate (320).
4. A surface polishing device for a power distribution cabinet according to claim 3, characterized in that: A fixing block (322) is slidably connected to the bottom of the inner cavity of the limiting plate (320), and one side of the fixing block (322) extends to the outside of the limiting plate (320). A fixing rod (323) is fixedly connected to the front side of the fixing block (322).
5. A surface polishing device for a power distribution cabinet according to claim 4, characterized in that: The left and right sides of the rear side of the fixed block (322) are fixedly connected with a clamping block (324), the left and right sides of the front side of the connection frame (316) are provided with a plurality of clamping grooves (325) in contact with the clamping block (324), and the surface of the sliding rod (321) is sleeved with a return spring (326).
6. A surface polishing device for a power distribution cabinet according to claim 5, characterized in that: The two ends of the return spring (326) are fixedly connected to the inner cavity of the limit plate (320) and the surface of the fixed block (322), respectively; the top of the limit plate (320) is fixedly connected to a telescopic rod (327); and the surface of the slide rod (321) is provided with a plurality of clamping holes (328) for use with the telescopic rod (327).
7. A surface polishing device for a power distribution cabinet according to claim 6, characterized in that: A second short rod (329) is connected to one side of the running plate (318); symmetrically arranged slide plates (338) are slidably connected to the front and rear sides of the inner cavity of the welding frame (315); one end of the second short rod (329) is slidably connected to the inner side of the slide plate (338); a clamping plate (330) is bolted to the surface of the slide plate (338); the surface of the clamping plate (330) is slidably connected to the surface of the welding frame (315); and fans (331) are installed on the left and right sides of the inner cavity at the bottom of the processing table (1).
8. A surface polishing device for a power distribution cabinet according to claim 7, characterized in that: A protection box (332) is fixedly connected to both left and right sides of the inner cavity at the bottom of the processing table (1); a second cylinder (335) is fixedly connected to the inner cavity of the protection box (332); a first screen plate (333) is fixedly connected to both left and right sides of the inner side of the processing table (1); a second screen plate (336) is fixedly connected to the output end of the second cylinder (335); and the second screen plate (336) is located at the center of the inner cavity of the first screen plate (333); a welding rod (334) is fixedly connected to the inner cavity at the bottom of the processing table (1); a guide rod (337) is slidably connected to the surface of the welding rod (334); and the fan (331) is used in conjunction with the first screen plate (333) and the second screen plate (336).
Citation Information
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