A crucible assembly transportation system for silicon carbide crystal growth furnace

Abstract

The present invention discloses a crucible assembly transportation system for a silicon carbide crystal growth furnace, comprising a bearing seat, a clamping assembly, a turning part, a transportation assembly and a packaging conveyor belt, wherein the transportation assembly comprises a transportation roller, wherein the transportation rollers are connected end to end, and the cross section of the transportation rollers is in a concave shape, and a plurality of pairs of movable seats are continuously arranged on the upper side of the transportation rollers, wherein the plurality of pairs of movable seats are relatively arranged at the two ends of the transportation rollers, and the bearing seat is arranged between a pair of movable seats; the clamping assembly is arranged inside the bearing seat, and is used for fixing the crucible body on the bearing seat, and the movable seat drives the bearing seat and the crucible body for transportation; the clamping assembly comprises a center ring, and the center ring is fixed to the center of the bearing seat, and a pair of inner arc clamping plates are arranged on both sides of the center ring close to the movable seat, and the pair of inner arc clamping plates are used for supporting and fixing on the inner wall of the pot mouth of the crucible body. The present invention realizes the automatic flipping function conveniently and efficiently.

Description

Technical Field

[0001] The invention relates to the technical field of crucible transportation, in particular to a crucible assembly transportation system for a silicon carbide crystal growth furnace. Background Art

[0002] The existing physical vapor transport method grows silicon carbide single crystals, and its growth process is carried out in a closed graphite crucible. The seed crystal is placed on the top of the crucible, and the silicon carbide particles are placed inside the crucible. The crucible is placed in a crystal growth furnace, and an inert gas is introduced after evacuation. At a high temperature of more than 2000°C, the silicon carbide particles are sublimated into various gaseous molecules. Under the action of the temperature gradient, these gaseous molecules are transported to the seed crystal surface located in the low temperature zone and recrystallized into silicon carbide crystals.

[0003] In the actual production process of crucibles, the production mode of the assembly line is adopted, and the production of crucibles on the assembly line adopts many high-temperature processes. When the crucible is transferred between the various steps on the assembly line, a stable and reliable clamping tool and a lifting tool are required. The main consideration in the transmission of the crucible is the stability of the movement of the crucible. Because the crucible has a certain weight, if the clamping force of the clamping tool is not enough, there will be a great safety hazard. The existing patent announcement number CN108639746A discloses a conveyor for crucible production, including a connecting piece and two structures The same arc-shaped seat plate, the top ends of the two arc-shaped seat plates are hinged to the connecting parts, and the upper ends of both are equipped with fastening bolts for fastening the two to the connecting parts during lifting. When the two arc-shaped seat plates are lifted, a clamping cavity with a 1 / 4 arc opening at the bottom is formed, and the crucible is clamped in the clamping cavity. The inner sides of the two arc-shaped seat plates are also provided with adjustable clamps, and the pot edge of the crucible is clamped by the adjustable clamps. Two elastic telescopic clamps are also arranged between the two arc-shaped seat plates, and the pot body of the crucible is clamped from both sides of the crucible by the two elastic telescopic clamps.

[0004] In the above technical solution, an adjustable clamp is used to clamp the edge of the crucible, and two elastic retractable clamps are also arranged between the two arc-shaped seat plates 2. The crucible body is clamped from both sides of the crucible by the two elastic retractable clamps. However, when clamping the crucible, only a single crucible can be clamped and moved at a time, which is not suitable for large-scale assembly line production. Moreover, when clamping, the crucible can only be clamped with the front side facing upwards, which does not allow the staff to check the defects on the inner and outer surfaces of the hook. Since the crucible itself is heavy, when defects on its inner and outer surfaces need to be detected, it needs to be manually turned over, which causes a greater safety hazard and increases the fatigue intensity of the workers.

[0005] Therefore, it is necessary to provide a crucible assembly transportation system for a silicon carbide crystal growth furnace that can achieve the effect of automatic flipping. Summary of the invention

[0006] The object of the present invention is to provide a crucible assembly transportation system for a silicon carbide crystal growth furnace to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a crucible assembly transportation system for a silicon carbide crystal growth furnace, comprising a bearing seat, a clamping assembly, a turning part, a transportation assembly and a packaging and conveying belt,

[0008] The transport assembly includes a transport roller, which is connected end to end, and the cross section of the transport roller is concave-shaped. A plurality of pairs of movable seats are continuously arranged on the upper side of the transport roller, and the plurality of pairs of movable seats are relatively arranged at the two ends of the transport roller, and the bearing seat is arranged between a pair of movable seats;

[0009] The clamping assembly is arranged inside the bearing seat and is used to fix the crucible body on the bearing seat, and the moving seat drives the bearing seat and the crucible body to be transported;

[0010] The clamping assembly includes a center ring, which is fixed to the center of the bearing seat. A pair of inner arc clamping plates are arranged on both sides of the center ring close to the moving seat. The pair of inner arc clamping plates are used to support and fix on the inner wall of the pot mouth of the crucible body. A plurality of telescopic rods are arranged between the inner arc clamping plates and the inner wall of the center ring. A threaded rod is fixedly connected to one side of the inner arc clamping plate. A threaded sleeve is threadedly connected to the outer side of the threaded rod. The threaded sleeve penetrates the center ring and the bearing seat and is rotatably connected thereto. A gear is fixedly connected to the through end of the threaded sleeve. A crown gear ring is meshedly connected to one side of the gear. The crown gear ring is sleeved on the outer side wall of the center ring and is rotatably connected thereto.

[0011] The turning part is arranged on the upper side of the transport roller, and is used to turn the supporting seat and the inverted crucible body over one circle;

[0012] The overturned crucible body is transported to the top of a packaging conveyor belt, and a plurality of packaging boxes are placed on the upper side of the packaging conveyor belt. The crucible body falls into the packaging boxes for loading.

[0013] In one embodiment, an outer arc clamping plate is provided on the outer side of the inner arc clamping plate, the telescopic rod passes through the outer arc clamping plate and slides with it, a pair of outer arc clamping plates are used to clamp on the outer wall of the pot mouth of the crucible body for fixing, a through opening is provided on the middle side of the outer arc clamping plate for the threaded sleeve to pass through, a plurality of spring members are provided between the inner arc clamping plate and the outer arc clamping plate, the spring members are sleeved on the outer side of the telescopic rod, square openings are provided on both sides of the outer arc clamping plate, both ends of the inner arc clamping plate are hingedly connected with arc rods, the arc rods pass through the square openings and slide with it, one end of the arc rod is rotatably connected with a roller, an annular groove is provided on the inner side of the center ring, the roller is adapted to the annular groove, a limiting roller is provided on the side of the square opening close to the threaded rod, and the limiting roller is adapted to the arc rod.

[0014] In one embodiment, a plurality of limit rods are fixedly connected to both sides of the bearing seat, a limit slot is provided on the inner side of the movable seat, the limit rods are matched with the limit slot, and a flip shaft is fixedly connected to the outer end of the gear.

[0015] In one embodiment, the flipping part includes a lifting assembly and a rotating assembly, the lifting assembly includes a base, the base is provided with a pair and respectively fixed on both sides of the transport roller, the upper end of the base is fixedly connected with a mouth plate, a movable moving plate is provided inside the mouth plate, the outer side of the moving plate is fixedly connected with a cylinder part, a driving rod is provided on one side of the cylinder part, the driving rod supports the flipping shafts on both sides to clamp the bearing seat.

[0016] In one embodiment, a hollow groove is formed at the head end of the driving rod on one side, and the hollow groove is adapted to the flip shaft, and a spline is fixedly connected to the head end of the driving rod on the other side;

[0017] The rotating assembly includes a rotating block, which is fixed to the outer end of the flip shaft close to the spline side. A spline groove is opened on one side of the rotating block, and the spline is matched with the spline groove.

[0018] In one embodiment, a straight keyway is provided on the surface of a driving rod fixed with a spline, and the inner side of the movable plate is rotatably connected to a slave gear, the driving rod passes through the slave gear and slides with it, and the slave gear transmits torque through the straight keyway to drive the driving rod to rotate, and the lower end of the slave gear is meshed with a main gear, and the outer side of the movable plate is fixedly connected to a motor component, and the motor component is used to drive the main gear to rotate.

[0019] In one embodiment, the upper end of the movable plate is connected to a connecting rope, which passes through the mouth plate and is loosely fitted therewith, the upper end of the mouth plate is fixedly connected to a top plate bracket, both sides of the top plate bracket are rotatably connected to guide wheels, the upper end of the top plate bracket is fixedly connected to a winding box, the inner side of the winding box is rotatably connected to a winding disk, the connecting rope passes through the winding box and is wound up by the winding disk, and the winding disk is driven to rotate by a motor assembly.

[0020] In one embodiment, a limiting mechanism is provided on the inner side of the mouth plate, and the limiting mechanism includes a plurality of spring telescopic rods, one side of the spring telescopic rod is fixedly connected to a cross bar, both ends of the cross bar are fixedly connected to trapezoidal wedges, and one end of the movable seat is provided with an oblique chamfer, and the oblique chamfer is adapted to the trapezoidal wedge, and the trapezoidal wedge is used to limit the movement of the movable seat.

[0021] In one embodiment, a through opening is provided at the middle end of the cross bar, the driving rod passes through the through opening and is gap-matched with the through opening, and a blocking piece is fixedly connected to the end position of the driving rod, and the blocking piece is used to push the cross bar to move.

[0022] In one embodiment, a feeding port is provided at the lower end of the transport roller, and the feeding port is located at the junction of the packaging conveyor belt and the transport roller, and the crucible body falls into the packaging box through the feeding port.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention uses a clamping assembly to clamp and fix the crucible body on the bearing seat, rolling grooves are arranged on both sides of the upper end of the transport roller, and a plurality of actively rotating shafts are arranged in the grooves to drive the moving seat, the bearing seat and the fixed crucible body to move, and the transport rollers are connected end to end, so that a large number of crucible bodies can be circularly transported, and when the inverted crucible body needs to be clamped, the edge of its pot mouth is placed on the outside of a pair of inner arc clamping plates, and when the crown gear ring rotates, it drives the gears on both sides to rotate at the same time, and the gears drive the threaded sleeves to rotate, and under the guidance of the telescopic rod, the pair of inner arc clamping plates are synchronously moved outward, so that the crucible body is supported and fixed from the inside, and the bearing seat can drive the fixed crucible body to move along the transport roller, so as to realize large-scale automatic transportation;

[0024] The flipping part can flip the supporting seat and the inverted crucible body for one circle, with the inner surface facing upwards, which is convenient for staff to conduct a comprehensive inspection; and when the flipped crucible body continues to be transported to the top of the packaging conveyor belt, the inner arc clamping plate can be loosened to make the crucible body directly fall into the packaging box on the packaging conveyor belt, so as to realize the loading of the crucible body and facilitate the packaging of the staff; and the flipping process and the loading process of the crucible body can be carried out simultaneously on the whole transportation line, thereby improving work efficiency, having a high degree of automation, and requiring no manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a three-dimensional schematic diagram of the bearing seat of the present invention;

[0029] Figure 3 is a cross-sectional schematic diagram of the turning portion of the present invention;

[0030] Figure 4 yes Figure 2 A local enlarged schematic diagram of region A;

[0031] Figure 5 yes Figure 2 A local enlarged schematic diagram of area B;

[0032] Figure 6 yes Figure 3 A local enlarged schematic diagram of the C region;

[0033] Figure 7 is a partial three-dimensional schematic diagram of the clamping assembly of the present invention;

[0034] Figure 8 yes Figure 3 A local enlarged schematic diagram of the D region;

[0035] Fig. 9 It is a three-dimensional schematic diagram of the limiting mechanism of the present invention;

[0036] In the figure: 1, bearing seat; 101, limiting rod; 102, turning axis; 103, base; 104, die plate; 105, moving plate; 106, slave gear; 107, main gear;

[0037] 2. Center ring; 201. Inner arc splint; 202. Telescopic rod; 203. Threaded rod; 204. Threaded sleeve; 205. Gear; 206. Crown gear ring; 207. Outer arc splint; 208. Square mouth; 209. Arc rod; 210. Roller; 211. Annular groove; 212. Limit roller;

[0038] 3. Turning part; 301. Rotating block; 302. Spline; 303. Driving rod; 304. Connecting rope; 305. Top plate bracket; 306. Guide wheel; 307. Winding reel;

[0039] 4. Transport roller; 401. Moving seat; 402. Limiting groove; 403. Trapezoidal wedge; 404. Cross bar; 405. Spring telescopic rod; 406. Blocking piece;

[0040] 5. Packing conveyor belt; 501. Packing box;

[0041] 6. Crucible body;

[0042] 8. Feeding port;

[0043] 9. Cylinder parts; 901. Motor parts. DETAILED DESCRIPTION

[0044] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0045] See also Figure 1-9 The present invention provides a technical solution: a crucible assembly transportation system for a silicon carbide crystal growth furnace, comprising a bearing seat 1, a clamping assembly, a turning part 3, a transportation assembly and a packaging and conveying belt 5,

[0046] The transport assembly includes a transport roller 4, which is connected end to end, and the cross section of the transport roller 4 is concave, and a plurality of pairs of movable seats 401 are continuously arranged on the upper side of the transport roller 4, and the plurality of pairs of movable seats 401 are relatively arranged at the two ends of the transport roller 4, and the bearing seat 1 is arranged between the pair of movable seats 401;

[0047] The clamping assembly is disposed inside the bearing seat 1 and is used to fix the crucible body 6 on the bearing seat 1. The moving seat 401 drives the bearing seat 1 and the crucible body 6 to be transported;

[0048] The clamping assembly includes a center ring 2, which is fixed to the center of the bearing seat 1. A pair of inner arc clamping plates 201 are arranged on both sides of the center ring 2 close to the moving seat 401. The pair of inner arc clamping plates 201 are used to support the inner wall of the pot mouth of the crucible body 6 for fixing. A plurality of telescopic rods 202 are arranged between the inner arc clamping plates 201 and the inner wall of the center ring 2. A threaded rod 203 is fixedly connected to one side of the inner arc clamping plates 201. The outer side of the threaded rod 203 is threadedly connected to a threaded sleeve 204. The threaded sleeve 204 penetrates the center ring 2 and the bearing seat 1 and is rotatably connected thereto. A gear 205 is fixedly connected to the through end of the threaded sleeve 204. A crown gear ring 206 is meshedly connected to one side of the gear 205. The crown gear ring 206 is sleeved on the outer side wall of the center ring 2 and is rotatably connected thereto.

[0049] The turning part 3 is arranged on the upper side of the transport roller 4, and is used to turn the supporting seat 1 and the inverted crucible body 6 over one circle;

[0050] The overturned crucible body 6 is transported to the top of the packaging conveyor belt 5 . A number of packaging boxes 501 are placed on the upper side of the packaging conveyor belt 5 . The crucible body 6 falls into the packaging boxes 501 for loading.

[0051] During the transportation of the crucible body 6, the crucible body 6 is clamped and fixed on the supporting seat 1 by using a clamping assembly, and the supporting seat 1 is arranged between a pair of moving seats 401, and rolling grooves are arranged on both sides of the upper end of the transport roller 4, and a plurality of actively rotating shafts are arranged in the grooves to drive the moving seat 401, the supporting seat 1 and the fixed crucible body 6 to move, and the transport roller 4 is connected end to end, so that a large number of crucible bodies 6 can be circularly transported in batches. Specifically, when it is necessary to clamp the inverted crucible body 6, the edge of its pot mouth is placed on the outside of a pair of inner arc clamping plates 201, and when the crown gear ring 206 rotates, it drives the gears 205 on both sides to rotate at the same time, and the gears 205 drive the threaded sleeve 204 to rotate. Under the guidance of the telescopic rod 202, the pair of inner arc clamping plates 201 move outward synchronously, so as to support and fix the crucible body 6 from the inside, and the supporting seat 1 can drive the fixed crucible body 6 to move along the transport roller 4, so as to realize large-scale automatic transportation;

[0052] When the transported crucible body 6 needs to be turned over for one circle, the crucible body 6 is moved to the turning part 3, and the turning part 3 can turn the supporting seat 1 and the inverted crucible body 6 over for one circle, with the inner surface facing upward, so that the staff can conduct a comprehensive inspection. Moreover, when the turned crucible body 6 is continuously transported to the packaging conveyor belt 5, since the crucible body 6 is in a correct state (such as Figure 3As shown), at this time, the inner arc clamping plate 201 can be loosened to allow the crucible body 6 to directly fall into the packaging box 501 on the packaging conveyor belt 5, so as to realize the loading of the crucible body 6, which is convenient for the staff to pack, and the turning process and loading process of the crucible body 6 can be carried out simultaneously on the entire transportation line, thereby improving the work efficiency, having a high degree of automation, and requiring no manual intervention.

[0053] An outer arc-shaped clamping plate 207 is arranged on the outer side of the inner arc-shaped clamping plate 201, and the telescopic rod 202 penetrates the outer arc-shaped clamping plate 207 and slides with it. A pair of outer arc-shaped clamping plates 207 are used to clamp the outer wall of the pot mouth of the crucible body 6 for fixing. A through hole is provided on the middle side of the outer arc-shaped clamping plate 207 for the threaded sleeve 204 to pass through. A plurality of spring members are arranged between the inner arc-shaped clamping plate 201 and the outer arc-shaped clamping plate 207, and the spring members are sleeved on the outer side of the telescopic rod 202. The outer arc-shaped clamping plate 20 Square openings 208 are provided on both sides of the inner arc-shaped clamping plate 201, and arc-shaped rods 209 are hinged at both ends. The arc-shaped rods 209 pass through the square openings 208 and slide with them. One end of the arc-shaped rod 209 is rotatably connected to a roller 210. An annular groove 211 is provided on the inner side of the center ring 2, and the roller 210 is adapted to the annular groove 211. A limiting roller 212 is provided on one side of the square opening 208 close to the threaded rod 203, and the limiting roller 212 is adapted to the arc-shaped rod 209.

[0054] Since the crucible body 6 itself is heavy, in order to increase the stability of turning it over as a whole, an outer arc clamping plate 207 is also provided outside the inner arc clamping plate 201, and the inner and outer sides of the pot mouth edge are clamped by the inner and outer clamping plates at the same time. Specifically, the telescopic rod 202 passes through the outer arc clamping plate 207, and the outer arc clamping plate 207 can slide along the telescopic rod 202, and a spring member is provided between the inner and outer clamping plates 201, so that in the initial state, the inner and outer clamping plates are separated by a certain distance (at this time, the pot mouth of the crucible body 6 can be inverted between the inner and outer clamping plates and supported by a plurality of arc rods 209), which is convenient for placing the pot mouth of the crucible body 6, and the arc rods 209 hinged at both ends of the inner arc clamping plate 201 pass through the square opening 208 opened in the outer arc clamping plate 207, and the inner arc surface of the arc rod 209 is relatively arranged toward the limiting roller 212 (such as Figure 7As shown in the figure), when clamping is required, first control the inner arc clamping plate 201 to move toward the outer arc clamping plate 207 (at this time, the roller 210 has not yet been clamped into the annular groove 211), and the arc rod 209 is restricted in the square opening 208, which restricts it from being clamped in the annular groove 211. Since the annular groove 211 is annular, the roller 210 rolls along it, thereby causing the arc rod 209 to deviate, and as the distance between the inner arc clamping plate 201 and the center ring 2 becomes smaller and smaller, the deflection angle of the arc rod 209 becomes larger and larger, so that the limiting roller 212 is restricted by it and can only move toward the inner arc clamping plate 201, that is, drive the outer arc clamping plate 207 to clamp the outer surface of the crucible body 6, and cooperate with the inner arc clamping plate 201 on the inside, so as to achieve stable clamping, greatly improve the stability during flipping, and only by driving the inner arc clamping plate 201, the outer arc clamping plate 207 can be synchronously driven to move, the two have good synchronization, the structural design is simple and reasonable, and the practicability is strong.

[0055] A plurality of limit rods 101 are fixedly connected to both sides of the bearing seat 1 , a limit slot 402 is arranged inside the movable seat 401 , the limit rods 101 are matched with the limit slot 402 , and a turning shaft 102 is fixedly connected to the outer end of the gear 205 .

[0056] Specifically, the bearing seat 1 is clamped into the limiting groove 402 by a plurality of limiting rods 101, thereby being restricted on the moving seat 401 (such as Figure 2 As shown in the figure), when it is necessary to flip, firstly, the supporting seat 1 and the clamped crucible body 6 need to be lifted as a whole, and by rotating the flip axis 102, the supporting seat 1 rotates one circle around the flip axis 102 as the axis, so that the crucible body 6 is flipped as a whole, and it is flipped from an inverted state to a flat state, and then it is lowered as a whole onto the moving seat 401, and the limiting rod 101 is again inserted into the limiting groove 402, and the transportation can continue.

[0057] The flipping part 3 includes a lifting component and a rotating component. The lifting component includes a base 103. The base 103 is provided with a pair and respectively fixed on both sides of the transport roller 4. The upper end of the base 103 is fixedly connected with a mouth plate 104. A movable moving plate 105 is provided in the mouth plate 104. The outer side of the moving plate 105 is fixedly connected with a cylinder part 9. A driving rod 303 is provided on one side of the cylinder part 9. The driving rod 303 supports the flipping shafts 102 on both sides to clamp the supporting seat 1.

[0058] Specifically, when the supporting seat 1 and the clamped crucible body 6 need to be lifted as a whole, the cylinder members 9 on both sides first push the driving rod 303 to hold the turning shaft 102, and the supporting seat 1 is clamped by friction. Then, the moving plate 105 rises in the die plate 104, thereby driving the cylinder member 9, the driving rod 303, the turning shaft 102 and the supporting seat 1 to rise. After rising to a position where there is enough space for turning, since the clamping point at this time is only at the turning shaft 102, and the crucible body 6 is in an inverted shape, the center of gravity is upward at this time, and it will fall downward under the influence of its own gravity, so that the supporting seat 1 automatically turns over with the turning shaft 102 as the axis under the gravity of the crucible body 6, until the crucible body 6 is in a flat state (such as Figure 2 That is to say, the crucible body 6 can be automatically turned over by just lifting it without using any driving member, thus saving costs.

[0059] A hollow groove is formed at the head end of the driving rod 303 on one side, and the hollow groove is adapted to the flip shaft 102 . A spline 302 is fixedly connected to the head end of the driving rod 303 on the other side.

[0060] The rotating assembly includes a rotating block 301 , which is fixed to the outer end of the flip shaft 102 close to the spline 302 . A spline groove is provided on one side of the rotating block 301 , and the spline 302 is matched with the spline groove.

[0061] Specifically, in order to further improve the stability of flipping, a hollow groove is set at the head end of the driving rod 303 on one side, which can be stuck on the outside of the flip shaft 102, and the spline 302 is fixed at the head end of the driving rod 303 on the other side, which can be relatively stuck in the spline groove of the rotating block 301, thereby further improving the stability of lifting and flipping the supporting seat 1.

[0062] A straight keyway is provided on the surface of the driving rod 303 fixed with the spline 302. The inner side of the movable plate 105 is rotatably connected to the slave gear 106. The driving rod 303 passes through the slave gear 106 and slides with it. The slave gear 106 transmits torque through the straight keyway to drive the driving rod 303 to rotate. The lower end of the slave gear 106 is meshedly connected to the main gear 107. The outer side of the movable plate 105 is fixedly connected to the motor component 901, which is used to drive the main gear 107 to rotate.

[0063] Since the space and load-bearing capacity of each bearing seat 1 are limited, and in order to save costs, when it is necessary to drive the clamping assembly to clamp the crucible body 6, only a single motor component 901 is set on the movable plate 105 on one side to drive the gear 205. Specifically, the initial crucible body 6 pot mouth is inverted between the inner and outer clamping plates and supported by a plurality of arc-shaped rods 209. At this time, since it is inverted, even if it is not clamped, the crucible body 6 has a certain stability during transportation. When the bearing seat 1 moves to the flip part 3, it is necessary Before flipping, the crucible body 6 is clamped, and the driving rod 303 is pushed by the cylinder part 9. At this time, the spline 302 is stuck in the spline groove, and the main gear 107 and the slave gear 106 are driven to rotate by the motor part 901. The torque is transmitted through the straight key groove to drive the driving rod 303 to rotate, and the spline 302 drives the rotating block 301, the flip shaft 102 and the gear 205 on one side to rotate. The crown gear ring 206 drives the gear 205 on the other side to rotate, so that the clamping assembly can be driven to clamp the crucible body 6;

[0064] After clamping, the entire crucible body 6 can be lifted by the movable plate 105. Since the crucible body 6 has been clamped at this time, the gear 205 cannot rotate temporarily. If the motor component 901 continues to drive the rotation at this time, the driving rod 303 will directly rotate the supporting seat 1 for one circle, thereby realizing the flipping of the crucible body 6. That is to say, after driving the clamping assembly to clamp, the motor component 901 also realizes the function of driving the supporting seat 1 to flip, thereby improving utilization and saving costs.

[0065] The upper end of the movable plate 105 is connected to a connecting rope 304, which passes through the mouth plate 104 and is loosely fitted therewith; the upper end of the mouth plate 104 is fixedly connected to a top plate bracket 305, both sides of the top plate bracket 305 are rotatably connected to guide wheels 306, the upper end of the top plate bracket 305 is fixedly connected to a winding box, the inner side of the winding box is rotatably connected to a winding disk 307, the connecting rope 304 passes through the winding box and is wound up by the winding disk 307, and the winding disk 307 is driven to rotate by the motor assembly.

[0066] Specifically, when the winding disk 307 rotates, the connecting ropes 304 on both sides are wound up at the same time, and the winding directions of the connecting ropes 304 on both sides are the same. The connecting ropes 304 are guided by the guide wheels 306 on both sides (such as Figure 3 As shown), at this time, the movable plates 105 on both sides can be pulled up at the same time to achieve the lifting function.

[0067] A limiting mechanism is arranged on the inner side of the mouth plate 104, and the limiting mechanism includes a plurality of spring telescopic rods 405, one side of the spring telescopic rod 405 is fixedly connected to a cross bar 404, both ends of the cross bar 404 are fixedly connected to trapezoidal wedge blocks 403, and one end of the movable seat 401 is provided with an oblique chamfer, which is adapted to the trapezoidal wedge block 403, and the trapezoidal wedge block 403 is used to limit the movement of the movable seat 401.

[0068] Since the bearing seat 1 moves with the moving seat 401, in order to ensure that the position of the spline 302 is accurately inserted into the spline groove each time, a limiting mechanism is provided to position the moving seat 401. Specifically, when the moving seat 401 drives the bearing seat 1 to move to the flip part 3, it first contacts the trapezoidal wedge block 403, and the inclined surface of the trapezoidal wedge block 403 moves backward along the oblique chamfer of the moving seat 401, and the spring telescopic rod 405 is compressed until the moving seat 401 is completely inserted into the inner side of a pair of trapezoidal wedge blocks 403, and the spring telescopic rod 405 is reset, thereby limiting the position (such as Fig. 9 As shown), the spline 302 now corresponds to the spline groove, which facilitates the connection and improves the accuracy of the connection.

[0069] A through opening is provided at the middle end of the cross bar 404 , and the driving rod 303 passes through the through opening and is clearance-matched therewith. A blocking piece 406 is fixedly connected to the end of the driving rod 303 , and the blocking piece 406 is used to push the cross bar 404 to move.

[0070] Specifically, when the crucible body 6 is flipped over, it is necessary to release the restriction of the trapezoidal wedge 403 to allow the movable seat 401 to continue to move. It is necessary to pull the cross bar 404 away from the movable seat 401. At this time, the driving rod 303 can be driven by the cylinder part 9 to move, driving the baffle 406 to move toward the cross bar 404 until the baffle 406 restricts the cross bar 404 from moving outward, and the restriction of the trapezoidal wedge 403 can be released. In other words, when the driving rod 303 completes the flipping work under the control of the cylinder part 9, thereby moving away from the flipping axis 102, the baffle 406 can also be driven to release the restriction on the movable seat 401, so as to facilitate the continued transportation of the crucible body 6. The process is organized, and no additional driving parts are used to drive the limiting mechanism, thereby saving costs.

[0071] A feeding port 8 is provided at the lower end of the transport roller 4 . The feeding port 8 is located at the junction of the packaging conveyor belt 5 and the transport roller 4 . The crucible body 6 falls into the packaging box 501 through the feeding port 8 .

[0072] Specifically, since the support base 1 itself does not have a driving component to drive the clamping assembly to release the clamping state, a cylinder component 9, a motor component 901, a driving rod 303, a spline 302 and other components (not shown in the figure) can be arranged at the intersection of the packaging conveyor belt 5 and the conveying roller 4, so as to drive the rotating block 301 to release the clamping state. At this time, the crucible body 6 is in a flat state. After the clamping assembly releases it, it falls directly into the packaging box 501 through the discharge port 8, thereby realizing the function of automatic loading and improving work efficiency.

[0073] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0074] The above is a detailed introduction to a crucible assembly transportation system for a silicon carbide crystal growth furnace provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A crucible assembly transportation system for a silicon carbide crystal growth furnace, comprising a bearing seat (1), a clamping assembly, a turning portion (3), a transportation assembly and a packaging conveyor belt (5), characterized in that: The transport assembly comprises a transport roller (4), the transport rollers (4) are connected end to end, the cross section of the transport roller (4) is in a concave shape, a plurality of pairs of movable seats (401) are continuously arranged on the upper side of the transport roller (4), the plurality of pairs of movable seats (401) are arranged at two ends of the transport roller (4) in a relative manner, and the bearing seat (1) is arranged between the pair of movable seats (401); The clamping assembly is arranged inside the bearing seat (1) and is used to fix the crucible body (6) on the bearing seat (1); the moving seat (401) drives the bearing seat (1) and the crucible body (6) for transportation; The clamping assembly comprises a center ring (2), the center ring (2) being fixed to the center of the bearing seat (1), a pair of inner arc-shaped clamping plates (201) being arranged on both sides of the center ring (2) close to the movable seat (401), the pair of inner arc-shaped clamping plates (201) being used to support and fix on the inner wall of the pot mouth of the crucible body (6), a plurality of telescopic rods (202) being arranged between the inner arc-shaped clamping plates (201) and the inner wall of the center ring (2), and one side of the inner arc-shaped clamping plates (201) A threaded rod (203) is fixedly connected, the outer side of the threaded rod (203) is threadedly connected to a threaded sleeve (204), the threaded sleeve (204) penetrates the center ring (2) and the bearing seat (1) and is rotatably connected thereto, a gear (205) is fixedly connected to the penetration end of the threaded sleeve (204), one side of the gear (205) is meshingly connected to a crown gear ring (206), and the crown gear ring (206) is sleeved on the outer side wall of the center ring (2) and is rotatably connected thereto; The turning part (3) is arranged on the upper side of the transport roller (4), and the turning part (3) is used to turn the supporting seat (1) and the inverted crucible body (6) over one circle; The turned crucible body (6) is transported to the top of the packaging conveyor belt (5), a plurality of packaging boxes (501) are placed on the upper side of the packaging conveyor belt (5), and the crucible body (6) falls into the packaging box (501) for loading; An outer arc-shaped clamping plate (207) is arranged on the outer side of the inner arc-shaped clamping plate (201); the telescopic rod (202) penetrates the outer arc-shaped clamping plate (207) and slidably cooperates with the outer arc-shaped clamping plate (207); a pair of outer arc-shaped clamping plates (207) are used to clamp and fix the outer wall of the pot mouth of the crucible body (6); a through opening is provided on the middle side of the outer arc-shaped clamping plate (207) for the threaded sleeve (204) to pass through; a plurality of spring members are arranged between the inner arc-shaped clamping plate (201) and the outer arc-shaped clamping plate (207); the spring members are sleeved on the outer side of the telescopic rod (202); and the outer arc-shaped clamping plates (207) are opened on both sides. A square opening (208) is provided, and both ends of the inner arc-shaped clamping plate (201) are hingedly connected to arc-shaped rods (209), and the arc-shaped rod (209) passes through the square opening (208) and slidably cooperates with the square opening, and one end of the arc-shaped rod (209) is rotatably connected to a roller (210), and an annular groove (211) is provided on the inner side of the center ring (2), and the roller (210) is matched with the annular groove (211), and a limiting roller (212) is provided on one side of the square opening (208) close to the threaded rod (203), and the limiting roller (212) is matched with the arc-shaped rod (209); A discharge port (8) is provided at the lower end of the transport roller (4), and the discharge port (8) is located at the junction of the packaging transport belt (5) and the transport roller (4), and the crucible body (6) falls into the packaging box (501) through the discharge port (8).

2. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 1, characterized in that: A plurality of limit rods (101) are fixedly connected to both sides of the bearing seat (1), a limit slot (402) is provided on the inner side of the movable seat (401), the limit rods (101) are matched with the limit slot (402), and the outer end of the gear (205) is fixedly connected to a turning shaft (102).

3. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 2, characterized in that: The flipping part (3) comprises a lifting component and a rotating component, the lifting component comprises a base (103), the base (103) is provided with a pair of and respectively fixed to two sides of the transport roller (4), the upper end of the base (103) is fixedly connected to a die plate (104), a movable moving plate (105) is provided inside the die plate (104), the outer side of the moving plate (105) is fixedly connected to a cylinder part (9), a driving rod (303) is provided on one side of the cylinder part (9), and the driving rod (303) supports the flipping shafts (102) on both sides to clamp the bearing seat (1).

4. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 3, characterized in that: A hollow groove is formed at the head end of the driving rod (303) on one side, and the hollow groove is adapted to fit the flip shaft (102); and a spline (302) is fixedly connected to the head end of the driving rod (303) on the other side; The rotating assembly comprises a rotating block (301), the rotating block (301) being fixed to the outer end of the flip shaft (102) close to the spline (302) side, a spline groove being provided on one side of the rotating block (301), and the spline (302) being adapted to the spline groove.

5. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 4, characterized in that: A straight keyway is provided on the surface of a driving rod (303) fixed with a spline (302); a slave gear (106) is rotatably connected to the inner side of the movable plate (105); the driving rod (303) penetrates the slave gear (106) and slidably cooperates with the slave gear (106); the slave gear (106) transmits torque through the straight keyway to drive the driving rod (303) to rotate; the lower end of the slave gear (106) is meshingly connected to a main gear (107); a motor component (901) is fixedly connected to the outer side of the movable plate (105); the motor component (901) is used to drive the main gear (107) to rotate.

6. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 3, characterized in that: The upper end of the movable plate (105) is connected to a connecting rope (304), the connecting rope (304) passes through the die plate (104) and is loosely matched therewith, the upper end of the die plate (104) is fixedly connected to a top plate bracket (305), both sides of the top plate bracket (305) are rotatably connected to guide wheels (306), the upper end of the top plate bracket (305) is fixedly connected to a winding box, the inner side of the winding box is rotatably connected to a winding disk (307), the connecting rope (304) passes through the winding box and is wound by the winding disk (307), and the winding disk (307) is driven to rotate by a motor assembly.

7. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 3, characterized in that: A limiting mechanism is arranged on the inner side of the die plate (104), and the limiting mechanism comprises a plurality of spring telescopic rods (405), one side of the spring telescopic rod (405) is fixedly connected to a cross bar (404), both ends of the cross bar (404) are fixedly connected to trapezoidal wedge blocks (403), and one end of the movable seat (401) is provided with an oblique chamfer, and the oblique chamfer is matched with the trapezoidal wedge block (403), and the trapezoidal wedge block (403) is used to limit the movement of the movable seat (401).

8. The crucible assembly transportation system for a silicon carbide crystal growth furnace according to claim 7, characterized in that: A through opening is provided at the middle end of the cross bar (404), the driving rod (303) passes through the through opening and is clearance-matched with the through opening, and a baffle (406) is fixedly connected to the end of the driving rod (303), and the baffle (406) is used to push the cross bar (404) to move.

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