An automatic discharging device for sintering furnace of silicon carbide products

Abstract

The present invention relates to the technical field of sintering processing, and specifically to an automatic discharging device for a sintering furnace for silicon carbide products. It comprises a sintering furnace, a supporting platform is installed inside the sintering furnace, an inverted T-shaped tray for placing silicon carbide products is arranged at the upper end of the supporting platform, a mobile trolley is arranged on the right side of the sintering furnace, and a discharging unit is arranged at the upper end of the mobile trolley. The fixed assembly in the present invention forms a plurality of triangular structures as a whole, which has high stability, and the fixed assembly can be moved into the sintering furnace to implement front and rear tight limiting on the silicon carbide products after sintering, and can also be pressed on the upper end of the silicon carbide product with the help of a pressing plate to ensure that the silicon carbide product is stably placed on the upper end of the inverted T-shaped tray, thereby increasing the relative stability between the silicon carbide product and the inverted T-shaped tray, and effectively preventing the silicon carbide product from shifting or tipping over during the discharging process, thereby improving the reliability of discharging.

Description

Technical Field

[0001] The invention relates to the technical field of sintering processing, and in particular to an automatic discharging device for a sintering furnace for silicon carbide products. Background Art

[0002] Sintering of silicon carbide products is one of the key steps in manufacturing high-quality silicon carbide ceramics. The sintering process involves treating silicon carbide powder at high temperatures to bond its particles together, thereby forming a dense solid material with specific mechanical and physical properties. The sintering process mainly includes pretreatment (degreasing, drying, etc.), sintering, cooling, and discharging. Among them, the discharging process of the sintering furnace for silicon carbide products is an important link in the entire production process. It directly affects the quality, output, and efficiency of subsequent processing of the product. When discharging, first open the door of the sintering furnace according to the operating procedures. For large sintering furnaces, it may be necessary to use a special robotic arm or push-pull system to move the furnace door, and then manually use existing equipment to remove the carrier (such as a tray) containing the sintered product from the furnace.

[0003] Usually, the carrier is directly moved out of the sintering furnace together with the sintered product. However, the unpositioned product may be displaced or tipped over due to inertia during the discharge process, resulting in poor stability. The stability of the carrier and the product needs to be improved.

[0004] In response to the above problems, solutions have also been proposed in the prior art. For example, Chinese patent publication number CN202221284231.6 discloses a sintering furnace with automatic loading and unloading. The sintering furnace with automatic loading and unloading limits and positions the product through an operating base, a bottom ring, a connecting block and a positioning ring, thereby ensuring the stability of the product. At the same time, two groups of first electric push rods and second electric push rods are used to provide certain support to the operating base to ensure the supporting effect of the operating base.

[0005] However, in the above-mentioned sintering furnace with automatic loading and unloading, the bottom ring, connecting block and positioning ring enter the sintering furnace together with the product to undergo sintering, cooling and other processes. These structures will cause certain obstructions on the surface of the product, affecting the uniform heat transfer, which can easily affect the consistency of the sintering effect; secondly, these structures are only suitable for products of specific sizes and shapes, and the overall applicability of the corresponding material-taking structure is low; thirdly, the operating base is supported by two sets of electric push rods, and the connection between the electric push rods and the operating base is still insufficient, and the stability of the operating base during movement needs to be improved. Summary of the invention

[0006] The present invention provides an automatic discharging device for a silicon carbide product sintering furnace, which includes a sintering furnace. A supporting table is installed inside the sintering furnace, and an inverted T-shaped tray for placing silicon carbide products is arranged at the upper end of the supporting table. A moving trolley is arranged on the right side of the sintering furnace, and a discharging unit is arranged at the upper end of the moving trolley; the discharging unit includes a convex plate installed at the upper end of the moving trolley, an inverted U-shaped frame is arranged at the upper end of the convex plate, a C-shaped plate is arranged between the front and rear vertical sections of the inverted U-shaped frame, a moving plate is arranged above the C-shaped plate and is slidably installed up and down between the front and rear vertical sections of the inverted U-shaped frame, and a fixing component for fixing the silicon carbide product is arranged between the C-shaped plate and the moving plate. The fixing component includes a pressing plate arranged at the lower end of the moving plate, fixing pieces are arranged at the upper ends of the transverse sections on both sides of the C-shaped plate. The fixing piece includes a rotating shaft arranged between the C-shaped plate and the moving plate. Two mounting plates distributed left and right are arranged at the upper end of the transverse section of the C-shaped plate, and connecting rod members are hinged at the positions corresponding to the mounting plates at the upper end of the mounting plate and the lower end of the moving plate. The closer ends of the upper and lower two connecting rod members are hinged to the same rotating shaft through a rotating block. A pushing piece for pushing the moving plate to move is arranged on the horizontal section of the inverted U-shaped frame, and a guiding connecting piece is arranged between the inverted U-shaped frame, the C-shaped plate and the convex plate; clamping components for clamping the inverted T-shaped tray are arranged on the closer sides of the front and rear vertical sections of the inverted U-shaped frame, and a linkage is arranged between the moving plate and the clamping components.

[0007] In a possible implementation manner, a connecting plate is connected between the right ends of the front and rear vertical sections of the inverted U-shaped frame, and the right end of the connecting plate is connected to the pushing end of a cylinder. The cylinder is installed at the upper end of the convex plate through a support. The guiding connecting piece includes connecting plates installed at the right ends of the front and rear vertical sections of the inverted U-shaped frame. Two inverted L-shaped plates distributed front and rear are installed at the right end of the longitudinal section of the C-shaped plate. Bar-shaped grooves for sliding connection with the corresponding connecting plates left and right are opened at the upper ends of the concave sections on both sides of the convex plate. Rollers are rotatably installed at the lower ends of the front and rear vertical sections of the inverted U-shaped frame and are in rotational contact with the corresponding bar-shaped grooves and are evenly arranged left and right. Sliding grooves distributed front and rear and respectively in sliding fit with the vertical sections of the corresponding inverted L-shaped plates are opened at the upper end of the convex section of the convex plate.

[0008] In a possible implementation manner, the clamping component includes two clamping plates distributed up and down and both slidably connected to the corresponding vertical sections of the inverted U-shaped frame. The clamping plate located above is fixedly connected to the corresponding transverse section of the C-shaped plate, and a limiting piece is arranged at the upper end of the clamping plate located below. The limiting piece includes a column installed at the upper end of the clamping plate located below. The upper end of the column is in a frustum shape. A through hole corresponding to the column is opened on the clamping plate located above. Side grooves are circumferentially and evenly arranged on the outer side of the column, and an arc-shaped limiting plate is slidably installed in the side grooves. A slope is arranged on the side of the arc-shaped limiting plate away from the column, and side springs are connected between the arc-shaped limiting plate and the side wall of the side groove and are evenly arranged up and down.

[0009] In a possible implementation manner, the linkage member includes upper racks that are slidably connected up and down on the sides of the front and rear vertical segments of the inverted U-shaped frame that are close to each other. An extension plate that is slidably connected up and down with the moving plate is installed at the upper end of the upper rack. Fixing holes are evenly arranged up and down on the extension plate. The moving plate is inserted and matched with the corresponding fixing holes through a cross bar. A lower rack that is slidably connected up and down with the corresponding vertical segment of the inverted U-shaped frame is installed at the upper end of the lower clamping plate. The lower rack is slidably matched up and down with the corresponding upper clamping plate. A linkage gear that is rotatably installed on the corresponding vertical segment of the inverted U-shaped frame is meshed between the upper rack and the corresponding lower rack.

[0010] In a possible implementation manner, locking members for locking the moving plate are arranged at the upper ends of the transverse segments on both the front and rear sides of the U-shaped plate. The locking member includes a vertical plate that is installed at the upper end of the transverse segment of the U-shaped plate and slidably penetrates the moving plate up and down. Mounting blocks are arranged on the sides of the front and rear two vertical plates that are close to each other. A moving groove is formed on the side of the mounting block away from the corresponding vertical plate. A trapezoidal block is slidably installed back and forth in the moving groove. A control spring is connected between the trapezoidal block and the side wall of the moving groove. The inclined surfaces of the front and rear two trapezoidal blocks face each other.

[0011] In a possible implementation manner, an inverted L-shaped frame located below the air cylinder is installed at the right end of the connecting plate. A rectangular groove that is located between the sliding grooves on the front and rear sides and is slidably connected with the vertical segment of the inverted L-shaped frame is formed at the upper end of the upper convex segment of the convex plate. A plurality of insertion holes are evenly arranged left and right at the left end of the bottom wall of the rectangular groove. A baffle is arranged at the left end of the vertical segment of the inverted L-shaped frame. The baffle is inserted and matched with the corresponding insertion holes through insertion rods.

[0012] In a possible implementation manner, the connecting rod members located above the front side and below the rear side of the rotating shaft are all guiding telescopic rods, and the remaining connecting rod members are all threaded telescopic rods. The telescopic ends of the threaded telescopic rods are rotatably installed on the corresponding rotating blocks hinged with the rotating shaft.

[0013] In a possible implementation manner, a connecting column that slidably penetrates the moving plate up and down is installed at the upper end of the pressing plate. A connecting spring sleeved on the outside of the connecting column is connected between the pressing plate and the moving plate. The pushing member includes a pushing frame installed at the upper end of the moving plate. The upper end of the pushing frame is connected with the pushing end of the electric push rod. The electric push rod is installed on the horizontal segment of the inverted U-shaped frame.

[0014] In a possible implementation manner, mounting grooves that are slidably matched with the corresponding mounting plates are formed at the upper ends of the transverse segments on both the front and rear sides of the U-shaped plate at the positions corresponding to the mounting plates. A moving column that slidably penetrates the U-shaped plate up and down is installed at the lower end of the mounting plate. A compression spring sleeved on the outside of the moving column is connected between the mounting plate and the bottom wall of the mounting groove.

[0015] In one possible implementation, the sides of the two front and rear vertical plates that are close to each other are each provided with an adjustment groove that slides up and down with the corresponding mounting block, and the positions of the vertical plates corresponding to the adjustment grooves are provided with rectangular holes evenly arranged up and down, and the mounting blocks are slidably installed left and right with rectangular rods that plug into and cooperate with the corresponding rectangular holes.

[0016] The beneficial effects of the present invention are as follows: 1. The fixing components in the present invention form a plurality of triangular structures as a whole, which have high stability, and the fixing components can be moved into the sintering furnace to implement front and rear tight limiting on the silicon carbide product after sintering, and can also be pressed on the upper end of the silicon carbide product with the help of a pressing plate to ensure that the silicon carbide product is stably placed on the upper end of the inverted T-shaped tray, thereby increasing the relative stability between the silicon carbide product and the inverted T-shaped tray, effectively preventing the silicon carbide product from shifting or tipping over during the discharging process, thereby improving the reliability of the discharging.

[0017] 2. The guiding connector in the present invention can utilize the cooperation between the connecting plate and the strip groove, between the inverted L-shaped frame and the rectangular groove, and between the inverted L-shaped plate and the sliding groove to support and guide the movement of the inverted L-shaped frame and the convex plate, increase the connection stability and balance between the inverted L-shaped frame, the convex plate and the convex plate, reduce vibration and shaking during movement, and thus improve the stability of the fixed assembly and the silicon carbide product in a fixed state during movement.

[0018] 3. The clamping assembly used in the present invention can clamp the inverted T-shaped tray while the fixing assembly fixes the silicon carbide product, and lift the inverted T-shaped tray off the supporting platform, thereby reducing the friction between the inverted T-shaped tray and the supporting platform. At the same time, the limiter and the locking member can be used to increase the overall structural stability of the clamping assembly, the inverted T-shaped tray, the molded plate and the fixing assembly, ensuring that the inverted T-shaped tray and the silicon carbide product can smoothly leave the sintering furnace with the fixing assembly, thereby improving the discharge efficiency.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical scheme, and the beneficial effects brought about by the technical features of the technical scheme, other technical problems that can be solved by an automatic discharging device for a silicon carbide product sintering furnace provided in an embodiment of the present application, other technical features included in the technical scheme, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the discharging unit of the present invention.

[0023] Figure 3 for Figure 2 sectional view of .

[0024] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing assembly of the present invention.

[0026] Figure 6 for Figure 5 A partial cross-sectional view of .

[0027] Figure 7 for Figure 6 A magnified schematic diagram of area B.

[0028] Figure 8 for Figure 6 Enlarged schematic diagram of area C in the middle.

[0029] Fig. 9 for Figure 6 A magnified schematic diagram of region D in the middle.

[0030] In the figure: 1, sintering furnace; 11, supporting platform; 12, inverted T-shaped tray; 2, moving trolley; 21, discharging unit; 211, convex plate; 212, inverted shaped frame; 213, shaped plate; 214, moving plate; 215, pressing plate; 216, connecting column; 217, connecting spring; 218, rotating shaft; 219, mounting plate; 221, connecting rod; 222, mounting groove; 223, moving column; 224, electric push rod; 231, cylinder; 232, connecting plate; 233, inverted L-shaped plate; 234, Strip groove; 236, sliding groove; 237, inverted L-shaped frame; 238, rectangular groove; 239, jack; 241, baffle; 242, clamping plate; 243, upper rack; 244, extension plate; 245, cross bar; 246, lower rack; 247, linkage gear; 248, column; 249, arc-shaped limit plate; 251, side spring; 252, vertical plate; 253, mounting block; 254, trapezoidal block; 255, control spring; 256, adjustment groove; 257, rectangular hole; 258, rectangular rod. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] See also Figure 1 , Figure 3 , Figure 5 and Figure 6 An automatic discharging device for a sintering furnace for silicon carbide products comprises a sintering furnace 1. A supporting platform 11 is installed inside the sintering furnace 1. An inverted T-shaped tray 12 for placing silicon carbide products is arranged on the upper end of the supporting platform 11. The inverted T-shaped tray 12 slides with the supporting platform 11 left and right. A moving trolley 2 is arranged on the right side of the sintering furnace 1. A discharging unit 21 is arranged on the upper end of the moving trolley 2.

[0033] When the sintering furnace 1 is working, the inverted T-shaped tray 12 is located at the upper end of the supporting platform 11, and the inverted T-shaped tray 12 is in conflict with the furnace wall on the left side of the sintering furnace 1, and the silicon carbide product is placed on the upper end of the vertical section of the inverted T-shaped tray 12, and the furnace door is in a closed inlet and outlet state, and the sintering furnace 1 can sinter the silicon carbide product inside it; it should be noted that the inverted T-shaped tray 12 and the supporting platform 11 are both made of high temperature resistant materials, and the present invention is applicable to silicon carbide products with regular / relatively regular shapes.

[0034] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The discharging unit 21 includes a convex plate 211 installed on the upper end of the mobile trolley 2, a convex plate 211 is provided on the upper end of the convex plate 211, a convex plate 213 is provided between the front and rear vertical sections of the convex plate 212, a movable plate 214 is provided above the convex plate 213 and is slidably installed between the front and rear vertical sections of the convex plate 212, a fixing component for fixing the silicon carbide product is provided between the convex plate 213 and the movable plate 214, the fixing component includes a pressing plate 215 arranged at the lower end of the movable plate 214, a connecting column 216 that slides up and down and penetrates the movable plate 214 is installed on the upper end of the pressing plate 215, and a connecting spring 217 that is sleeved on the outside of the connecting column 216 is connected between the pressing plate 215 and the movable plate 214.

[0035] See also Figure 3 , Figure 5 , Figure 6 and Figure 7, fixing members are provided at the upper ends of the transverse sections on both the front and rear sides of the U-shaped plate 213. The fixing members include a rotating shaft 218 provided between the U-shaped plate 213 and the moving plate 214. Two mounting plates 219 distributed left and right are provided at the upper end of the transverse section of the U-shaped plate 213. Connecting rod members 221 are hinged at the upper ends of the mounting plates 219 and at the positions corresponding to the mounting plates 219 at the lower end of the moving plate 214. The closer ends of the upper and lower two connecting rod members 221 are hinged to the same rotating shaft 218 through a rotating block. The connecting rod members 221 located above the front side and below the rear side of the rotating shaft 218 are all guiding telescopic rods, and the remaining connecting rod members 221 are all threaded telescopic rods. The telescopic ends of the threaded telescopic rods are rotatably mounted on the corresponding rotating blocks hinged to the rotating shaft 218. Mounting grooves 222 that are slidably matched with the corresponding mounting plates 219 in the up and down direction are provided at the positions corresponding to the mounting plates 219 at the upper ends of the transverse sections on both the front and rear sides of the U-shaped plate 213. A moving column 223 that slidably penetrates the U-shaped plate 213 in the up and down direction is mounted at the lower end of the mounting plate 219. A compression spring sleeved outside the moving column 223 is connected between the mounting plate 219 and the bottom wall of the mounting groove 222. A pushing member for pushing the moving plate 214 to move is provided on the horizontal section of the inverted U-shaped frame 212. The pushing member includes a pushing frame mounted at the upper end of the moving plate 214. The upper end of the pushing frame is connected to the pushing end of the electric push rod 224. The electric push rod 224 is mounted on the horizontal section of the inverted U-shaped frame 212.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, a connecting plate is connected between the right ends of the front and rear vertical segments of the inverted U-shaped frame 212. The right end of the connecting plate is connected to the pushing end of the air cylinder 231. The air cylinder 231 is installed on the upper end of the convex plate 211 through a support. A guiding connecting piece is arranged between the inverted U-shaped frame 212, the U-shaped plate 213 and the convex plate 211. The guiding connecting piece includes connecting plates 232 installed at the right ends of the front and rear vertical segments of the inverted U-shaped frame 212. Two inverted L-shaped plates 233 distributed front and rear are installed at the right end of the longitudinal segment of the U-shaped plate 213. Strip-shaped grooves 234 for left and right sliding connection with the corresponding connecting plates 232 are opened at the upper ends of the lower concave segments on the front and rear sides of the convex plate 211. Rollers that are evenly arranged left and right and are in rotational contact with the corresponding strip-shaped grooves 234 are rotatably installed at the lower ends of the front and rear vertical segments of the inverted U-shaped frame 212. Two sliding grooves 236 distributed front and rear and slidably matched with the vertical segments of the corresponding inverted L-shaped plates 233 are opened at the upper end of the upper convex segment of the convex plate 211. An inverted L-shaped frame 237 located below the air cylinder 231 is installed at the right end of the connecting plate. A rectangular groove 238 located between the sliding grooves 236 on the front and rear sides and slidably connected with the vertical segment of the inverted L-shaped frame 237 is opened at the upper end of the upper convex segment of the convex plate 211. A plurality of insertion holes 239 evenly arranged left and right are opened at the left end of the bottom wall of the rectangular groove 238. A baffle 241 is arranged at the left end of the vertical segment of the inverted L-shaped frame 237. The baffle 241 is inserted and matched with the corresponding insertion holes 239 through insertion rods.

[0037] During operation: After the silicon carbide products inside the sintering furnace 1 are sintered, the existing controller can be used to control the furnace door to open completely, so as to take out the inverted T-shaped tray 12 and the sintered silicon carbide products from the sintering furnace 1. Then, the air cylinder 231 can push the inverted U-shaped frame 212 to move leftward through the connecting plate. The U-shaped plate 213, the moving plate 214 and the fixing assembly move rightward synchronously with the inverted U-shaped frame 212 and gradually enter the sintering furnace 1. The inverted U-shaped frame 212 entering the sintering furnace 1 can be in rotational contact with the bottom wall of the sintering furnace 1 through the rollers rotatably installed at the lower ends of its front and rear vertical segments. While supporting the smooth leftward movement of the inverted U-shaped frame 212, it can also reduce the friction between the inverted U-shaped frame 212 and the bottom wall of the sintering furnace 1. In addition, the front and rear two connecting plates 232 slide leftward along the corresponding strip-shaped grooves 234 synchronously with the inverted U-shaped frame 212. The vertical segment of the inverted L-shaped frame 237 slides leftward along the rectangular groove 238 synchronously with the connecting plate. The vertical segments of the front and rear two inverted L-shaped plates 233 slide leftward along the corresponding sliding grooves 236 synchronously with the U-shaped plate 213. Through the cooperation between the connecting plate 232 and the strip-shaped groove 234, between the inverted L-shaped frame 237 and the rectangular groove 238, and between the inverted L-shaped plate 233 and the sliding groove 236, the movement of the inverted U-shaped frame 212 and the U-shaped plate 213 can be supported and guided, and the connection stability between the inverted U-shaped frame 212, the U-shaped plate 213 and the convex plate 211 can be increased.

[0038] During the leftward movement, the shaped plate 213 gradually reaches the upper end of the inverted T-shaped tray 12, and the vertical section of the inverted T-shaped tray 12 is just inserted between the front and rear transverse sections of the shaped plate 213. When the vertical section of the inverted L-shaped frame 237 moves leftward to contact the baffle 241, the inverted shaped frame 212 drives the shaped plate 213, the moving plate 214 and the fixed assembly to completely enter the sintering furnace 1, and the silicon carbide product is just located between the middle of the rotating shaft 218 on the front and rear sides and directly below the pressing plate 215. The baffle 241 is used to limit the inverted L-shaped frame 237 to ensure that the inverted The L-shaped frame 212 drives the L-shaped plate 213 and the fixing assembly to move accurately to the position of the silicon carbide product, so that the clamping point position of the subsequent rotating shaft 218 on the silicon carbide product is appropriate and the clamping force is evenly distributed, thereby increasing the accuracy and reliability of the fixing assembly to fix the silicon carbide product. When the position of the silicon carbide product at the upper end of the vertical section of the inverted T-shaped tray 12 changes, the position of the baffle 241 to limit the inverted L-shaped frame 237 can be flexibly changed through the cooperation between the insertion rod and the insertion hole 239, ensuring that the fixing assembly can always fix the silicon carbide product stably and balancedly.

[0039] When the fixed assembly moves to the position of the silicon carbide product, the electric push rod 224 can push the moving plate 214 to move downward along the front and rear vertical sections of the inverted frame 212 through the push frame, and the upper connecting rod 221 of the front and rear two fixed parts moves downward synchronously with the moving plate 214 and rotates in the direction of the silicon carbide product, and the lower connecting rod 221 of the front and rear two fixed parts rotates synchronously in the direction of the silicon carbide product, and the rotating shaft 218 moves synchronously with the connecting rod 221 in the corresponding fixed part and gradually approaches the silicon carbide product until the front and rear two rotating shafts 218 move synchronously toward each other to press against the silicon carbide product, thereby limiting the front and rear positions of the silicon carbide product. In addition, the movable plate 214 drives the pressure plate 215 to move downward synchronously to press against the upper end of the silicon carbide product through the connecting column 216 and the connecting spring 217. During this process, the connecting rod 221 located below and the corresponding mounting plate 219 are subjected to downward pressure and may drive the movable column 223 to move downward along the molded plate 213 and slightly compress the corresponding compression spring, but at this time the mounting plate 219 is still located above the corresponding mounting groove 222. The pressure plate 215 may drive the connecting column 216 to move upward along the movable plate 214 and slightly compress the connecting spring 217 due to the pressure on the silicon carbide product, but the compression spring and the connecting spring 217 are not in a fully compressed state.

[0040] When the height of the silicon carbide product increases and the front-to-back length decreases, the connecting rod 221 of the threaded telescopic rod in different fixing parts can be rotated at the same time, and the connecting rod 221 for guiding the telescopic rod can be synchronously extended, so that the rotating shaft 218 in the initial state is close to the silicon carbide product, ensuring that the pressing plate 215 and the rotating shaft 218 can contact the silicon carbide product at the same time. When the height of the silicon carbide product decreases and the front-to-back length increases, the position of the rotating shaft 218 can be adjusted in the same way. Regardless of the increase or decrease in the height of the silicon carbide product, the pressing plate 215 can always be pressed against the upper end of the silicon carbide product under the action of the connecting column 216 and the connecting spring 217.

[0041] See also Figure 5 , Figure 6 and Figure 8 The front and rear vertical sections of the inverted T-shaped frame 212 are close to each other on one side and are provided with a clamping assembly for clamping the inverted T-shaped pallet 12. The clamping assembly includes two clamping plates 242 distributed up and down and connected to the vertical sections corresponding to the inverted T-shaped frame 212 for sliding up and down. The clamping plate 242 located at the top is fixedly connected to the horizontal section corresponding to the T-shaped plate 213. A linkage is provided between the movable plate 214 and the clamping assembly. The linkage includes an upper rack 243 connected to the front and rear vertical sections of the inverted T-shaped frame 212 for sliding up and down on one side. An extension plate 244 connected to the movable plate 214 for sliding up and down is installed on the upper end of the upper rack 243. Fixed holes evenly arranged up and down are opened on the extension plate 244. The movable plate 214 is plugged into the corresponding fixed holes through a cross bar 245. The upper end of the clamping plate 242 located at the bottom is provided with a The corresponding vertical section is slidably connected to the lower rack 246, and the lower rack 246 is slidably matched with the corresponding clamping plate 242 located above. The upper rack 243 and the corresponding lower rack 246 are meshed with a linkage gear 247 rotatably installed on the corresponding vertical section of the inverted frame 212. A limiting member is arranged on the upper end of the clamping plate 242 located below. The limiting member includes a column 248 installed on the upper end of the clamping plate 242 located below. The upper end of the column 248 is truncated. The clamping plate 242 located above is provided with a through hole corresponding to the column 248. The outer side of the column 248 is provided with a side groove evenly arranged in the circumferential direction. An arc-shaped limiting plate 249 is slidably installed in the side groove. The side of the arc-shaped limiting plate 249 away from the column 248 is provided with an inclined surface, and a side spring 251 evenly arranged up and down is connected between the arc-shaped limiting plate 249 and the side wall of the side groove.

[0042] In the process of the above-mentioned inverted T-shaped frame 212 and the mold plate 213 moving to the position of the silicon carbide product, the clamping assembly moves synchronously therewith, and the two clamping plates 242 distributed up and down are finally located on the upper and lower sides of the middle of the corresponding horizontal section of the inverted T-shaped tray 12. When the moving plate 214 moves downward, it drives the front and rear two upper racks 243 to move downward synchronously. When the rotating shaft 218 contacts the silicon carbide product, the upper rack 243 has not yet engaged with the corresponding linkage gear 247, and then the moving plate 214 can continue to be pushed downward by the electric push rod 224. At this time, the connecting column 216 at the upper end of the pressing plate 215 can move upward relative to the moving plate 214 by compressing the connecting spring 217, and the moving plate 2 14 pushes the upper connecting rod 221 to continue to move downward, and the lower connecting rod 221 drives the corresponding mounting plate 219 and the moving column 223 to continue to move downward along the mounting groove 222 by squeezing the compression spring, and the rotating shaft 218 synchronously rolls and moves downward along the outer side of the silicon carbide product. At the same time, the moving plate 214 drives the upper racks 243 on the front and rear sides to gradually move downward until they are meshed with the corresponding linkage gears 247. The linkage gears 247 rotate, so that the corresponding lower racks 246 drive the lower clamping plate 242 to move upward synchronously, and the lower clamping plate 242 gradually approaches the lower end of the horizontal section of the inverted T-shaped tray 12 and conflicts with the inverted T-shaped tray 12.

[0043] During this process, the clamping plate 242 located at the bottom drives the column 248, the side spring 251 and the arc limit plate 249 to move upward synchronously. In the initial state, the circumferentially arranged arc limit plates 249 are all located in the corresponding side grooves by squeezing the side springs 251. When moving upward, the arc limit plates 249 enter the perforations on the upper clamping plate 242. After passing through the upper clamping plate 242, the arc limit plates 249 can move outward along the side grooves under the action of the rebound force of the side springs 251. The circumferentially arranged arc limit plates 249 are synchronously opened to interlock and limit the two upper and lower opposite clamping plates 242. At this time, the inverted T-shaped pallet 12 is just clamped between the upper and lower clamping plates 242, that is, the clamping of the inverted T-shaped pallet 12 is completed. The interlocking limit between the upper and lower clamping plates 242 can not only increase the connection between the clamping plates 242, ensuring that the upper and lower clamping plates 242 can move upward synchronously later, but also increase the stability during the clamping of the inverted T-shaped pallet 12.

[0044] As the movable plate 214 and the upper rack 243 continue to move downward, the corresponding lower rack 246 can continue to drive the upper and lower clamps 242, the inverted T-shaped tray 12 and the limit piece to move upward synchronously along the vertical section corresponding to the inverted mold frame 212, and the silicon carbide product, the mold plate 213 and the fixed component move upward synchronously therewith until the inverted T-shaped tray 12 is slightly separated from the supporting platform 11, thereby reducing the friction between the inverted T-shaped tray 12 and the supporting platform 11, ensuring that the inverted T-shaped tray 12 and the silicon carbide product can subsequently leave the sintering furnace 1 smoothly. At this time, the connecting spring 217 and the compression spring are both in a compressed state.

[0045] Please refer to Figure 5 、 Figure 6 and Fig. 9 。 The upper ends of the transverse sections on the front and rear sides of the C-shaped plate 213 are both provided with locking members for locking the moving plate 214. The locking members include vertical plates 252 that are installed at the upper ends of the transverse sections of the C-shaped plate 213 and penetrate through the moving plate 214 vertically and slidably. On the side of the front and rear two vertical plates 252 close to each other, mounting blocks 253 are provided. A moving groove is formed on the side of the mounting block 253 away from the corresponding vertical plate 252. A trapezoidal block 254 is slidably installed in the moving groove in the front and rear directions. A control spring 255 is connected between the trapezoidal block 254 and the side wall of the moving groove. The inclined surfaces of the front and rear two trapezoidal blocks 254 face each other. Adjustment grooves 256 that are slidably matched with the corresponding mounting blocks 253 in the up and down directions are formed on the side of the front and rear two vertical plates 252 close to each other. Rectangular holes 257 that are evenly arranged up and down are formed in the vertical plates 252 at positions corresponding to the adjustment grooves 256. A rectangular rod 258 that is inserted and matched with the corresponding rectangular hole 257 is slidably installed on the mounting block 253.

[0046] Please refer to Figure 1-Figure 9 。 During operation: The front and rear vertical plates 252 can further support and guide the downward movement of the moving plate 214. During the process of the clamping assembly driving the inverted T-shaped tray 12, the C-shaped plate 213, the fixing assembly and the silicon carbide product to move upward, the moving plate 214 can make the trapezoidal block 254 move along the moving groove in the direction close to the vertical plate 252 by pressing the inclined surface of the trapezoidal block 254, and the control spring 255 contracts synchronously. After the moving plate 214 moves to disengage from the trapezoidal block 254, the trapezoidal block 254 can be reset to fit on the upper end of the moving plate 214 under the action of the control spring 255. Finally, the moving plate 214 can move to a position between the trapezoidal block 254 and the rectangular rod 258. The trapezoidal block 254 and the rectangular rod 258 can limit the up and down movement of the moving plate 214, which can effectively prevent the up and down movement of the moving plate 214 from affecting the stability of the clamping assembly clamping the inverted T-shaped tray 12 and the fixing assembly fixing the silicon carbide product, increase the relative stability between the C-shaped plate 213 and the moving plate 214, and thus contribute to the improvement of the overall structural stability and the discharging stability of the silicon carbide product.

[0047] When the height of the silicon carbide product changes, the downward position of the movable plate 214 changes synchronously. At this time, the front and rear upper racks 243 can be moved up and down along the movable plate 214. After the upper rack 243 moves to a suitable position, the upper rack 243 can be fixed on the movable plate 214 through the cooperation between the cross bar 245 and the fixing hole to change the distance required for the upper rack 243 to move downward and engage with the linkage gear 247, ensuring that the movable plate 214 moved down to different positions can always drive the clamping assembly to clamp the inverted T-shaped tray 12 through the linkage assembly; in addition The mounting block 253 can also be moved up and down along the adjustment groove 256 to a suitable position, and the trapezoidal block 254 and the control spring 255 move synchronously therewith to change the position of the trapezoidal block 254 limiting the movable plate 214, and then the mounting block 253 can be fixed on the corresponding vertical plate 252 through the cooperation between the rectangular rod 258 and the corresponding rectangular hole 257. Since the distance between the rectangular rod 258 and the trapezoidal block 254 is always the same as the thickness of the movable plate 214, the rectangular rod 258 can always cooperate with the trapezoidal block 254 to limit the movable plate 214.

[0048] Finally, the cylinder 231 can drive the inverted L-shaped frame 212, the moving plate 214, the L-shaped plate 213, the fixing assembly, the silicon carbide product, the clamping assembly and the inverted T-shaped tray 12 to move rightward as a whole and reset to the upper end of the convex plate 211 through the connecting plate. Although the L-shaped plate 213 has moved upward a little distance before, the vertical sections of the front and rear inverted L-shaped plates 233 can still slide with the corresponding sliding grooves 236. At this time, the lower end of the inverted T-shaped tray 12 just slides with the rectangular groove 238 at the upper end of the convex plate 211. The raised section of the convex plate 211 can be The rightward movement of the inverted T-shaped tray 12 provides support and guidance, thereby ensuring that the inverted T-shaped tray 12 and the silicon carbide product are stably moved out of the sintering furnace 1 to complete the unloading. The mobile trolley 2 can drive the sintered silicon carbide product to move to the subsequent workstation for subsequent operations. Subsequently, the trapezoidal blocks 254 on the front and rear sides can be pressed into the corresponding moving grooves with the help of external force, and the circumferentially arranged arc-shaped limit plates 249 can be pressed into the side grooves, so that the moving plate 214, the clamping assembly and the fixing assembly can be smoothly reset, and the limit fixation of the inverted T-shaped tray 12 and the silicon carbide product can be released.

[0049] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic discharging device for a sintering furnace for silicon carbide products, comprising a sintering furnace (1), a supporting platform (11) installed inside the sintering furnace (1), an inverted T-shaped tray (12) for placing silicon carbide products arranged on the upper end of the supporting platform (11), and a moving trolley (2) arranged on the right side of the sintering furnace (1), characterized in that: A discharging unit (21) is provided at the upper end of the movable trolley (2); The discharging unit (21) comprises a convex plate (211) mounted on the upper end of the moving trolley (2), a convex plate (211) is arranged on the upper end of the convex plate (211), a convex plate (213) is arranged between the front and rear vertical sections of the convex plate (212), a movable plate (214) is arranged above the convex plate (213) and is slidably mounted between the front and rear vertical sections of the convex plate (212), a fixing component for fixing the silicon carbide product is arranged between the convex plate (213) and the movable plate (214), the fixing component comprises a pressing plate (215) arranged at the lower end of the movable plate (214), and fixing parts are arranged at the upper ends of the transverse sections on both sides of the convex plate (213); The fixing member comprises a rotating shaft (218) arranged between the convex plate (213) and the movable plate (214); two mounting plates (219) distributed on the left and right are arranged at the upper end of the transverse section of the convex plate (213); the upper end of the mounting plate (219) and the lower end of the movable plate (214) corresponding to the mounting plate (219) are both hinged with connecting rods (221); the ends of the upper and lower connecting rods (221) close to each other are hinged on the same rotating shaft (218) through a rotating block; a pushing member for pushing the movable plate (214) to move is arranged on the horizontal section of the inverted convex frame (212); and a guiding connecting member is arranged between the inverted convex frame (212), the convex plate (213) and the convex plate (211); A clamping assembly for clamping the inverted T-shaped tray (12) is provided on the side where the front and rear vertical sections of the inverted T-shaped frame (212) are close to each other, and a linkage member is provided between the moving plate (214) and the clamping assembly.

2. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: A connecting plate is connected between the right ends of the front and rear vertical sections of the inverted convex frame (212), and the right end of the connecting plate is connected to the pushing end of the cylinder (231). The cylinder (231) is installed on the upper end of the convex plate (211) through a support. The guide connecting member includes a connecting plate (232) installed at the right ends of the front and rear vertical sections of the inverted convex frame (212). Two inverted L-shaped plates (233) distributed front and back are installed at the right end of the longitudinal section of the convex plate (213). The convex plate (211) is provided with a plurality of connecting plates (232) arranged at the right ends of the front and rear vertical sections of the inverted convex frame (212). 1) The upper ends of the lower concave sections on both the front and rear sides are provided with strip grooves (234) connected to the corresponding connecting plates (232) for sliding left and right, the lower ends of the front and rear vertical sections of the inverted L-shaped frame (212) are rotatably mounted with rollers that are evenly arranged left and right and in rotational contact with the corresponding strip grooves (234), and the upper end of the upper convex section of the convex plate (211) is provided with two sliding grooves (236) distributed front and back and respectively slidably matched with the vertical sections of the corresponding inverted L-shaped plates (233).

3. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: The clamping assembly includes two clamping plates (242) which are vertically distributed up and down and are both slidably connected to the corresponding vertical sections of the inverted U-shaped frame (212). The clamping plate (242) located above is fixedly connected to the corresponding horizontal section of the U-shaped plate (213). A limiting member is provided at the upper end of the clamping plate (242) located below. The limiting member includes a column (248) installed at the upper end of the clamping plate (242) located below. The upper end of the column (248) is frustum-shaped. A through hole corresponding to the column (248) is opened on the clamping plate (242) located above. Side grooves are evenly arranged circumferentially on the outer side of the column (248). An arc-shaped limiting plate (249) is slidably installed in the side grooves. A slope is provided on the side of the arc-shaped limiting plate (249) away from the column (248). Side springs (251) are evenly arranged up and down between the arc-shaped limiting plate (249) and the side wall of the side groove.

4. The automatic discharging device for a silicon carbide product sintering furnace according to claim 3, characterized in that: The linkage member includes upper racks (243) which are slidably connected up and down on the closer sides of the front and rear vertical sections of the inverted U-shaped frame (212). An extension plate (244) which is slidably connected to the moving plate (214) up and down is installed at the upper end of the upper rack (243). Fixing holes are evenly arranged up and down on the extension plate (244). The moving plate (214) is inserted and matched with the corresponding fixing holes through a cross bar (245). A lower rack (246) which is slidably connected up and down to the corresponding vertical section of the inverted U-shaped frame (212) is installed at the upper end of the clamping plate (242) located below. The lower rack (246) is slidably matched with the corresponding clamping plate (242) located above. A linkage gear (247) which is rotatably installed on the corresponding vertical section of the inverted U-shaped frame (212) is meshed between the upper rack (243) and the corresponding lower rack (246).

5. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: Locking members for locking the moving plate (214) are provided at the upper ends of the horizontal sections on both the front and rear sides of the U-shaped plate (213). The locking members include vertical plates (252) which are installed at the upper ends of the horizontal sections of the U-shaped plate (213) and penetrate through the moving plate (214) up and down. Mounting blocks (253) are provided on the closer sides of the front and rear two vertical plates (252). A moving groove is opened on the side of the mounting block (253) away from the corresponding vertical plate (252). A trapezoidal block (254) is slidably installed back and forth in the moving groove. A control spring (255) is connected between the trapezoidal block (254) and the side wall of the moving groove. The slopes of the front and rear two trapezoidal blocks (254) face each other.

6. The automatic discharging device for a silicon carbide product sintering furnace according to claim 2, characterized in that: An inverted L-shaped frame (237) which is located below the cylinder (231) is installed at the right end of the connecting plate. A rectangular groove (238) which is slidably connected to the vertical section of the inverted L-shaped frame (237) and is located between the sliding grooves (236) on both the front and rear sides is opened at the upper end of the upper convex section of the convex plate (211). A plurality of insertion holes (239) which are evenly arranged left and right are opened at the left end of the bottom wall of the rectangular groove (238). A baffle (241) is provided at the left end of the vertical section of the inverted L-shaped frame (237). The baffle (241) is inserted and matched with the corresponding insertion holes (239) through insertion rods.

7. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: The connecting rod members (221) located above the front side and below the rear side of the rotating shaft (218) are all guiding telescopic rods, and the remaining connecting rod members (221) are all threaded telescopic rods. The telescopic ends of the threaded telescopic rods are rotatably installed on the corresponding rotating blocks hinged to the rotating shaft (218).

8. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: A connecting column (216) that slides up and down through the moving plate (214) is installed at the upper end of the pressing plate (215). A connecting spring (217) sleeved on the outside of the connecting column (216) is connected between the pressing plate (215) and the moving plate (214). The pushing member includes a pushing frame installed at the upper end of the moving plate (214), and the upper end of the pushing frame is connected to the pushing end of the electric push rod (224). The electric push rod (224) is installed on the horizontal section of the inverted U-shaped frame (212).

9. The automatic discharging device for a silicon carbide product sintering furnace according to claim 1, characterized in that: Installation grooves (222) that are slidably matched with the corresponding mounting plates (219) up and down are respectively formed at the upper ends of the transverse sections on the front and rear sides of the U-shaped plate (213) at the positions corresponding to the mounting plates (219). A moving column (223) that slides up and down through the U-shaped plate (213) is installed at the lower end of the mounting plate (219). A compression spring sleeved on the outside of the moving column (223) is connected between the mounting plate (219) and the bottom wall of the installation groove (222).

10. The automatic discharging device for a silicon carbide product sintering furnace according to claim 5, characterized in that: Adjustment grooves (256) that are slidably matched with the corresponding mounting blocks (253) up and down are respectively formed on the closer sides of the front and rear vertical plates (252). Rectangular holes (257) that are evenly arranged up and down are formed in the vertical plates (252) at the positions corresponding to the adjustment grooves (256). A rectangular rod (258) that is inserted and matched with the corresponding rectangular hole (257) is slidably installed on the mounting block (253).

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