Quartz crucible sand unloading device

Abstract

The utility model discloses a quartz crucible sand unloading device, which belongs to the technical field of automatic production lines, and comprises a charging barrel conveying line, a charging barrel, a feeding lifting assembly, a lifting turnover assembly and a sand unloading assembly, the charging barrel conveying line is positioned on the ground and is used for conveying the charging barrel filled with sand; the lifting and overturning assembly is located on the upper side of the charging barrel and used for grabbing and overturning the charging barrel at the target position. The feeding lifting assembly is located on one side of the charging barrel conveying line and used for conveying the lifting overturning assembly into the sand unloading assembly at the high position. The sand unloading assembly is used for unloading sand from the charging barrel, the charging barrel after sand unloading is grabbed by the lifting and overturning assembly and conveyed to the charging barrel conveying line, and the process is repeated, so that automation of the sand unloading process during quartz crucible production is realized; the sand unloading device can realize an automatic sand unloading process during production. The sand unloading efficiency of the quartz crucible is improved, and the purpose of replacing a worker with a machine is achieved, so that the productivity is increased, the production cost is reduced, automation is realized, and long-term economic benefits and social benefits are brought to enterprises.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production lines, in particular to a quartz crucible sand unloading device. Background Art

[0002] Quartz crucibles are clean, homogeneous, and resistant to high temperatures. They are key consumables in the production of single crystal silicon wafers. They are used to hold molten silicon and make crystal rods required for subsequent processes. During the production process, sandblasting is required many times. At present, the work of sand unloading and sandblasting is mainly done manually, which has high labor intensity and low efficiency. In addition, the loaded sand is uneven, and the product qualification rate is low. For this reason, this application proposes a quartz crucible sand unloading device, which solves the difficulties of high labor intensity, low efficiency, and low product qualification rate. In combination with subsequent sandblasting and scraping, machine replacement is achieved. Utility Model Content

[0003] The utility model aims to provide a quartz crucible sand unloading device to solve the problems of high manual labor intensity, low efficiency, low product qualification rate and failure to automatically unload sand from the quartz crucible in the prior art during the production process of the quartz crucible.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quartz crucible sand unloading device, comprising a barrel conveying line, a barrel, a feeding lifting assembly, a lifting and flipping assembly and a sand unloading assembly, wherein the feeding lifting assembly and the sand unloading assembly are connected by a connecting rod, and the barrel conveying line is located at the lower end between the feeding lifting assembly and the unloading assembly, and the lifting and flipping assembly is located on the feeding lifting assembly, and the barrel filled with sand is fed into the feeding lifting assembly operation designated position through the barrel conveying line;

[0005] The barrel at the target position is grabbed and flipped 180° by the lifting and flipping assembly installed on the feed lifting assembly. The lifting and flipping assembly includes a movable block, a flipping motor, a swing shaft, a swing arm, a first positive and negative screw, a third guide rail, a third slider and a Y-axis frame. The feed lifting assembly includes a first support frame and a lifting frame. The support frame is vertically arranged, and the lifting frame is slidably connected to a side wall of the first support frame. The lifting and flipping assembly is located on the lifting frame of the feed lifting assembly and is connected through the Y-axis frame. The Y-axis frame is located at the upper end of the lifting frame, and the lower end of the Y-axis frame is slidably connected to the lifting frame. The movable block is located at the upper end of the Y-axis frame, and the first positive and negative screws are transversely connected. The movable blocks are located on the Y-axis frame, and are rotatably connected to the Y-axis frame on both sides. The front ends of the movable blocks on both sides are connected to the first positive and negative screws. The lower part of the movable block is slidably connected to the third guide rails provided at the front and rear ends of the upper part of the Y-axis frame through a third sliding block provided at the front and rear ends of the movable block. The movable blocks on both sides are controlled to approach or move away from each other by a first clamping motor provided at one end of the first positive and negative screws to form a clamping action to clamp the barrel. The swing arm is located at the rear end of the movable block and is connected to the rear end of the movable block through the swing shaft. The flipping motor is located at the rear end of the swing shaft. The flipping motor provides flipping power to the swing arm, thereby driving the barrel clamped by the swing arms on both sides to flip 180°.

[0006] After the lifting and flipping assembly is transported to a high place by the lifting frame in the feeding lifting assembly, the barrel is installed in the sand unloading assembly on one side, and the sand unloading assembly includes a second support frame, a unloading motor, a feeding turntable, a second gear, a slewing support, a fence and a unloading device. The feeding turntable is located at the upper end of the second support frame and is connected through a slewing support. The unloading motor is located at the lower end of the slewing support and is connected to the slewing support through a second gear. The feeding turntable is driven by the unloading motor to switch the workstation. The feeding turntable includes a plurality of barrel placement slots. The fence is located on the outside of each placement slot for placing the fallen barrels. The unloading device is located at the lower end of the outer side of the feeding turntable and is connected to the second support frame for unloading sand from the barrel at the upper end.

[0007] The unloading device includes an unloading cylinder, a bottom shell, a bearing, a funnel, a positioning bottom plate, a second rack, a fourth guide rail, a fourth slider, a third gear, and a lifting cylinder; the lifting cylinder is connected to the second support frame in the sand unloading assembly, and the bottom shell at the upper end of the lifting cylinder is lifted up, and the sand unloading port is connected to the barrel; the bottom shell is the base of the unloading device as a whole, the third gear is located at the center position inside the bottom shell, the second rack is located on one side of the third gear, and the two are meshed with each other, and the second rack is connected to the fourth slider provided on the side wall of the bottom shell through the fourth guide rail provided on the upper end surface The second rack is guided and slidably mounted on the outer wall of the bottom shell, and the lower end of the third gear is connected to the bottom shell through a bearing, and the upper end is connected to the positioning base plate. The second rack is driven to move by the unloading cylinder, and the third gear is driven to rotate, thereby driving the positioning base plate located at the upper end of the third gear to rotate, and the sand blocking part at the bottom of the barrel is opened through the positioning base plate; the funnel is located inside the positioning base plate, and extends through the third gear to the lower end of the bottom shell, thereby completing the automatic unloading of sand from the quartz crucible.

[0008] Preferably, the barrel conveyor line includes a foot cup, a baffle, an electric roller and a driven roller. The foot cup is used to support the ground and to adjust the level of the conveyor line. The electric roller and the driven roller are installed on the inner side of the baffles on both sides. Power is provided by the electric roller, and the electric roller is connected to the driven roller by a chain to ensure the transportation of each roller.

[0009] Preferably, first guide rails are respectively provided on both side walls of the first supporting frame, first sliders are respectively provided on the lifting frame and the wall surface close to one side of the first supporting frame, and the lifting frame is slidably connected with the supporting frame through the first slider and the first guide rail for guiding lifting, and a servo motor is provided on one side of the lifting frame, and the output end of the servo motor is connected to a first gear through a reducer, and the first gear is meshed with a first rack provided on the wall surface of the supporting frame close to the servo motor, and the rotation of the first gear is controlled by the servo motor, and the lifting and lowering drive of the lifting frame is realized by cooperating with the first rack.

[0010] Preferably, a rodless cylinder is provided on the outer wall of the lifting frame, second guide rails are respectively provided on both sides of the upper wall of the lifting frame, and a second slider provided at the lower end of the Y-axis frame is connected to the second guide rails by a slide track, and both sides of the Y-axis frame are respectively connected to the rodless cylinder, and the Y-axis frame is driven by the rodless cylinder to move forward and backward on the lifting frame.

[0011] Preferably, the lower end of the first support frame is in contact with the ground via a first pad support, and the first pad support is used for fine-tuning the height. The bottom end of the second support frame is also provided with a second pad support, and the height of the second support frame is fine-tuned via the second pad support.

[0012] Preferably, a first buffer pad is provided on the inner surface of the swing arm, which is in direct contact with the barrel through the first buffer pad to protect the barrel surface during clamping.

[0013] Preferably, a fixed assembly is provided at the upper end of the sand unloading assembly, and the fixed assembly includes a connecting member, a second clamping motor, a second forward and reverse screw and a centering movable rod. The connecting member is located at the center of the feeding turntable, and the connecting member is supported and connected to the second supporting frame at the lower end. The second forward and reverse screw is located inside one side of the connecting member, and the second clamping motor is fixed on one side of the connecting member and connected to the second forward and reverse screw. One end of the centering movable rod is connected to the second forward and reverse screw, and the second forward and reverse screw is controlled to rotate by the second clamping motor, thereby driving the centering movable rods to approach each other, and the barrel is clamped by the other end of the centering movable rod to fix its position.

[0014] Preferably, a second buffer pad is provided on the inner side of each of the centering movable rods, and the second buffer pad is in direct contact with the barrel to protect the barrel surface during clamping.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model can realize the process of automatic sand unloading during production, improve the sand unloading efficiency of quartz crucible, achieve the purpose of machine replacement, thereby increasing production capacity, reducing production costs and realizing automation, bringing long-term economic and social benefits to the enterprise.

[0017] 2. In the utility model, a lifting and flipping assembly is provided, through which a rotatable swing arm is used to realize the flipping operation of the barrel, while ensuring that the movable block can adapt to the outer contour of the barrel during the clamping process and have a certain compensation.

[0018] 3. In the utility model, a discharge assembly is provided, and the feed turntable is driven by the discharge motor to switch the working position, so that the barrel is transported to the top of the discharge device. The barrel cover is unscrewed by the provided discharge device to discharge the sand inside the barrel, and the barrel cover can be tightened and adjusted according to the amount of sand discharged, thereby realizing the control of the amount of sand discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the attached picture:

[0021] Figure 1 This is a schematic diagram of the overall structure of the quartz crucible sand unloading device of the utility model;

[0022] Figure 2 This is a schematic diagram of the barrel conveying line structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the feed lifting component of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the lifting and flipping assembly of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the sand unloading component of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the unloading device in the sand unloading assembly of the utility model;

[0027] Numbers in the figure: 1. barrel conveyor line; 2. barrel; 3. feed lifting assembly; 4. lifting and flipping assembly; 5. sand unloading assembly; 6. foot cup; 7. baffle; 8. electric roller; 9. driven roller; 10. first pad support; 101. connecting rod; 11. first support frame; 12. first slider; 13. first guide rail; 14. lifting frame; 15. first rack; 16. first gear; 17. servo motor; 18. reducer; 19. rodless cylinder; 20. second guide rail; 21. second slider; 22. movable block; 23. flipping motor; 24. swing shaft; 25. swing arm; 26. first buffer pad; 27. first positive and negative thread screw ; 28. The third guide rail; 29. ​​The third slider; 30. The Y-axis frame; 301. The first clamping motor; 31. The second pad support; 32. The second support frame; 33. The unloading motor; 34. The feeding turntable; 35. The second gear; 36. The slewing support; 37. The fence; 38. The connecting piece; 39. The second clamping motor; 40. The second forward and reverse screws; 41. The centering movable rod; 42. The second buffer pad; 43. The unloading device; 44. The unloading cylinder; 45. The bottom shell; 46. The bearing; 47. The funnel; 48. The positioning bottom plate; 49. The second rack; 50. The fourth guide rail; 51. The fourth slider; 52. The third gear; 53. The lifting cylinder. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Example: Figure 1 As shown, a quartz crucible sand unloading device includes a barrel conveying line 1, a barrel 2, a feeding lifting component 3, a lifting and flipping component 4 and a sand unloading component 5;

[0030] like Figure 2 As shown, the feed lifting assembly 3 and the sand unloading assembly 5 are connected by a connecting rod 101, and the barrel conveying line 1 is located at the lower end between the feed lifting assembly 3 and the unloading assembly, and the lifting and flipping assembly 4 is located on the feed lifting assembly 3. The barrel 2 filled with sand is fed into the specified operation position of the feed lifting assembly 3 through the barrel conveying line 1. The barrel conveying line 1 includes a foot cup 6, a baffle 7, an electric roller 8 and a driven roller 9. The foot cup 6 is used to support each other with the ground and to adjust the level of the conveying line. The electric roller 8 and the driven roller 9 are installed on the inner side of the baffle 7 on both sides, and the power is provided by the electric roller 8. The electric roller 8 is connected to the driven roller 9 through a chain to ensure the transportation of each roller.

[0031] like Figure 3 As shown, the barrel 2 at the target position is grabbed by the lifting and flipping assembly 4 installed on the feeding lifting assembly 3, the lifting and flipping assembly 4 includes a movable block 22, a flipping motor 23, a swing shaft 24, a swing arm 25, a first forward and reverse screw 27, a third guide rail 28, a third slider 29 and a Y-axis frame 30, the feeding lifting assembly 3 includes a first support frame 11 and a lifting frame 14, the support frames are arranged vertically, the lower end of the first support frame 11 is in contact with the ground through a first pad support 10, and the first pad support 10 is used for fine-tuning the height, the second support frame 32 is also provided with a second pad support 31 at the bottom end, and the height of the second support frame 32 is fine-tuned by the second pad support 31, the lifting frame 14 is slidably connected to the wall of one side of the first support frame 11, and the walls on both sides of the first support frame 11 are respectively A first guide rail 13 is provided, and a first slider 12 is provided on the lifting frame 14 and the first supporting frame 11 near one side wall respectively, and the lifting frame 14 is slidably connected with the supporting frame through the first slider 12 and the first guide rail 13, which is used for guiding lifting, and a servo motor 17 is provided on one side of the lifting frame 14, and the output end of the servo motor 17 is connected with the first gear 16 through the reducer 18, and the first gear 16 is meshed with a first rack 15 provided on the wall of the supporting frame near the servo motor 17. The rotation of the first gear 16 is controlled by the servo motor 17, and the lifting and lowering drive of the lifting frame 14 is realized by cooperating with the first rack 15. The servo motor 17 and the reducer 18 are connected with the lifting frame 14 through the first rack 15 and the first gear 16, which serve as the power source for lifting.

[0032] like Figure 4 As shown, the lifting and flipping assembly 4 is located on the lifting frame 14 of the feeding lifting assembly 3 and is connected through the Y-axis frame 30. The Y-axis frame 30 is located at the upper end of the lifting frame 14, and the lower end of the Y-axis frame 30 is slidably connected to the lifting frame 14. A rodless cylinder 19 is provided on the outer wall of the lifting frame 14. Second guide rails 20 are provided on both sides of the upper end wall of the lifting frame 14, and a second slider 21 provided at the lower end of the Y-axis frame 30 is connected to the second guide rail 20 by a slideway. The two sides of the Y-axis frame 30 are respectively connected to the rodless cylinder 19, and the Y-axis frame 30 is driven by the rodless cylinder 19 to move back and forth on the lifting frame 14. The movable block 22 is located at the upper end of the Y-axis frame 30, and the first forward and reverse threaded screw 27 is laterally located on the Y-axis frame 30, and the two sides are rotatably connected to the Y-axis frame 30. The front ends of the movable blocks 22 on both sides are connected to the The first positive and negative threaded screw 27 is connected, and the movable block 22 is slidably connected to the third guide rail 28 provided at the front and rear ends of the Y-axis frame 30 above the Y-axis frame 30 through a third slider 29 provided at the front and rear ends of the movable block 22 below. The movable blocks 22 on both sides are controlled to approach or move away from each other through a first clamping motor 301 provided at one end of the first positive and negative threaded screw 27, so as to form a clamping action to clamp the barrel 2. The swing arm 25 is located at the rear end of the movable block 22 and is connected to the rear end of the movable block 22 through the swing shaft 24. The flip motor 23 is located at the rear end of the swing shaft 24. The flip motor 23 provides flipping power for the swing arm 25, thereby driving the barrel 2 clamped by the swing arms 25 on both sides to flip 180°. The inner surface of the swing arm 25 is provided with a first buffer pad 26, which is in direct contact with the barrel 2 through the first buffer pad 26 and is used to protect the surface of the barrel 2 when clamping.

[0033] like Figure 5As shown, after the lifting and flipping assembly 4 is transported to a high place by the lifting frame 14 in the feeding lifting assembly 3, the barrel 2 is installed in the sand unloading assembly 5 on one side, and the sand unloading assembly 5 includes a second support frame 32, a unloading motor 33, a feeding turntable 34, a second gear 35, a slewing support 36, a fence 37 and a unloading device 43. The second support frame 32 is an integral support, and the remaining parts are all located thereon; the feeding turntable 34 is located at the upper end of the second support frame 32 and is connected through the slewing support 36, the unloading motor 33 is located at the lower end of the slewing support 36, and is connected to the slewing support 36 through the second gear 35 provided, and the feeding turntable 34 is driven by the unloading motor 33 to switch the working position, the feeding turntable 34 includes a plurality of barrel 2 placement slots, and the fence 37 is located on the outside of each placement slot for placing the fallen barrel 2; the unloading device 43 is located at the lower end of the outer side of the feeding turntable 34, and is connected to the second support frame 32 for the upper material The barrel 2 is unloaded with sand, and a fixing assembly is provided at the upper end of the sand unloading assembly 5, and the fixing assembly includes a connecting member 38, a second clamping motor 39, a second forward and reverse screw 40 and a centering movable rod 41. The connecting member 38 is located at the center of the feeding turntable 34, and the connecting member 38 is supported and connected to the second supporting frame 32 at the lower end, and the second forward and reverse screw 40 is located inside one side of the connecting member 38, and the second clamping motor 39 is fixed on one side of the connecting member 38 and connected to the second forward and reverse screw 40, and one end of the centering movable rod 41 is connected to the second forward and reverse screw 40, and the second clamping motor 39 controls the second forward and reverse screw 40 to rotate, thereby driving the centering movable rod 41 to approach each other, and the barrel 2 is clamped by the other end of the centering movable rod 41, and its position is fixed, and second buffer pads 42 are respectively provided on the inner sides of the centering movable rods 41, which are in direct contact with the barrel 2 through the second buffer pads 42, and are used to protect the surface of the barrel 2 when clamping;

[0034] like Figure 6As shown, the unloading device 43 includes a unloading cylinder 44, a bottom shell 45, a bearing 46, a funnel 47, a positioning bottom plate 48, a second rack 49, a fourth guide rail 50, a fourth slider 51, a third gear 52, and a lifting cylinder 53; the lifting cylinder 53 is connected to the second support frame 32 in the sand unloading assembly 5, and the bottom shell 45 at the upper end of the lifting cylinder 53 is lifted up to connect the sand unloading port with the barrel 2; the bottom shell 45 is the base of the unloading device 43 as a whole, the third gear 52 is located at the center position inside the bottom shell 45, the second rack 49 is located on one side of the third gear 52, and the two are meshed with each other, and the second rack 49 is connected to the fourth guide rail 50 provided on the upper end surface of the fourth gear 52 provided on the side wall of the bottom shell 45 The slider 51 is guided and slid, and the tail end of the second rack 49 is connected to the unloading cylinder 44 provided on the outer wall of the bottom shell 45 to provide power for unloading sand. The lower end of the third gear 52 is connected to the bottom shell 45 through the bearing 46 provided, and the upper end is connected to the positioning base plate 48. The second rack 49 is driven to move by the unloading cylinder 44, and the third gear 52 is driven to rotate, thereby driving the positioning base plate 48 located at the upper end of the third gear 52 to rotate, and the sand blocking part at the bottom of the barrel 2 is opened through the positioning base plate 48; the funnel 47 is located inside the positioning base plate 48, and extends out of the lower end of the bottom shell 45 through the third gear 52, and finally completes the automatic unloading of sand from the quartz crucible.

[0035] Personnel place a barrel 2 filled with sand at the barrel conveyor line 1 and transport it to the designated position. The swing arm 25 in the lifting and flipping assembly 4 clamps and flips the barrel 2, and transports it to a high place through the feeding lifting assembly 3, and places the barrel 2 at the sand unloading assembly 5; the feeding turntable 34 turns the barrel 2 to be unloaded to the sand unloading station; the centering movable rod 41 clamps and positions the barrel 2 to be unloaded, and the unloading cylinder 44 in the unloading device 43 drives the third gear 52 and the positioning bottom plate 48 to rotate, opening the barrel mouth of the barrel 2, and the sand flows out with the funnel 47, completing the sand unloading action.

[0036] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A quartz crucible sand unloading device, characterized in that: It includes a barrel conveying line, a barrel, a feeding lifting assembly, a lifting and flipping assembly, and a sand unloading assembly. The feeding lifting assembly and the sand unloading assembly are connected by a connecting rod, and the barrel conveying line is located at the lower end between the feeding lifting assembly and the unloading assembly. The lifting and flipping assembly is located on the feeding lifting assembly. The barrel filled with sand is fed into the designated operation position of the feeding lifting assembly through the barrel conveying line. The material barrel at the target position is grabbed and flipped by a lifting and flipping assembly installed on the feed lifting assembly, and the lifting and flipping assembly includes a movable block, a flipping motor, a swing shaft, a swing arm, a first positive and negative threaded screw, a third guide rail, a third slider and a Y-axis frame. The feed lifting assembly includes a first support frame and a lifting frame. The support frame is vertically arranged, and the lifting frame is slidably connected to a side wall of the first support frame. The lifting and flipping assembly is located on the lifting frame of the feed lifting assembly and is connected through the Y-axis frame. The Y-axis frame is located at the upper end of the lifting frame, and the lower end of the Y-axis frame is slidably connected to the lifting frame. The movable block is located at the upper end of the Y-axis frame, and the first positive and negative threaded screw is transversely connected. The movable blocks are located on the Y-axis frame, and are rotatably connected to the Y-axis frame on both sides. The front ends of the movable blocks on both sides are connected to the first positive and negative screws. The lower part of the movable block is slidably connected to the third guide rails provided at the front and rear ends of the upper part of the Y-axis frame through a third sliding block provided at the front and rear ends of the movable block. The movable blocks on both sides are controlled to approach each other through a first clamping motor provided at one end of the first positive and negative screws to form a clamping action to clamp the barrel. The swing arm is located at the rear end of the movable block and is connected to the rear end of the movable block through the swing shaft. The flipping motor is located at the rear end of the swing shaft. The flipping motor provides flipping power for the swing arm, thereby driving the barrel clamped by the swing arms on both sides to flip 180°. After the lifting and flipping assembly is transported to a high place by the lifting frame in the feeding lifting assembly, the barrel is installed in the sand unloading assembly on one side, and the sand unloading assembly includes a second support frame, a unloading motor, a feeding turntable, a second gear, a slewing support, a fence and a unloading device. The feeding turntable is located at the upper end of the second support frame and is connected through a slewing support. The unloading motor is located at the lower end of the slewing support and is connected to the slewing support through a second gear. The feeding turntable is driven by the unloading motor to switch the workstation. The feeding turntable includes a plurality of barrel placement slots. The fence is located on the outside of each placement slot for placing the fallen barrels. The unloading device is located at the lower end of the outer side of the feeding turntable and is connected to the second support frame for unloading sand from the barrel at the upper end. The unloading device includes an unloading cylinder, a bottom shell, a bearing, a funnel, a positioning bottom plate, a second rack, a fourth guide rail, a fourth slider, a third gear, and a lifting cylinder; the lifting cylinder is connected to the second support frame in the sand unloading assembly, and the bottom shell at the upper end of the lifting cylinder is lifted up, and the sand unloading port is connected to the barrel; the bottom shell is the base of the unloading device as a whole, the third gear is located at the center position inside the bottom shell, the second rack is located on one side of the third gear, and the two are meshed with each other, and the second rack is connected to the fourth slider provided on the side wall of the bottom shell through the fourth guide rail provided on the upper end surface The second rack is guided and slidably mounted on the outer wall of the bottom shell, and the lower end of the third gear is connected to the bottom shell through a bearing, and the upper end is connected to the positioning base plate. The second rack is driven to move by the unloading cylinder, and the third gear is driven to rotate, thereby driving the positioning base plate located at the upper end of the third gear to rotate, and the sand blocking part at the bottom of the barrel is opened through the positioning base plate; the funnel is located inside the positioning base plate, and extends through the third gear to the lower end of the bottom shell, thereby completing the automatic unloading of sand from the quartz crucible.

2. A quartz crucible sand unloading device according to claim 1, characterized in that: The barrel conveyor line includes a foot cup, a baffle, an electric roller and a driven roller. The foot cup is used to support the ground and to adjust the level of the conveyor line. The electric roller and the driven roller are installed on the inner side of the baffles on both sides. The power is provided by the electric roller. The electric roller is connected to the driven roller by a chain to ensure the transportation of each roller.

3. A quartz crucible sand unloading device according to claim 1, characterized in that: The walls on both sides of the first supporting frame are respectively provided with first guide rails, the lifting frame and the wall surface close to one side of the first supporting frame are respectively provided with first sliders, and the lifting frame is slidably connected with the supporting frame through the first slider and the first guide rail for guiding lifting, and a servo motor is provided on one side of the lifting frame, and the output end of the servo motor is connected with a first gear through a reducer, and the first gear is meshed with a first rack provided on the wall surface of the supporting frame close to the servo motor side, and the rotation of the first gear is controlled by the servo motor, and the lifting and lowering drive of the lifting frame is realized by cooperating with the first rack.

4. The quartz crucible sand unloading device according to claim 1, characterized in that: A rodless cylinder is provided on the outer wall of the lifting frame, and second guide rails are respectively provided on both sides of the upper wall of the lifting frame. A second slider is provided at the lower end of the Y-axis frame and is connected to the second guide rails. Both sides of the Y-axis frame are respectively connected to the rodless cylinder, and the Y-axis frame is driven by the rodless cylinder to move back and forth on the lifting frame.

5. The quartz crucible sand unloading device according to claim 1, characterized in that: The lower end of the first support frame is in contact with the ground through a first pad support, and the first pad support is used for fine-tuning the height. The bottom end of the second support frame is also provided with a second pad support, and the height of the second support frame is fine-tuned through the second pad support.

6. The quartz crucible sand unloading device according to claim 1, characterized in that: A first buffer pad is provided on the inner surface of the swing arm, which is in direct contact with the barrel through the first buffer pad and is used to protect the barrel surface during clamping.

7. The quartz crucible sand unloading device according to claim 1, characterized in that: A fixed assembly is provided at the upper end of the sand unloading assembly, and the fixed assembly includes a connecting piece, a second clamping motor, a second forward and reverse screw and a centering movable rod. The connecting piece is located at the center of the feeding turntable, and the connecting piece is supported and connected to the second supporting frame at the lower end. The second forward and reverse screw is located inside one side of the connecting piece. The second clamping motor is fixed on one side of the connecting piece and is connected to the second forward and reverse screw. One end of the centering movable rod is connected to the second forward and reverse screw. The second forward and reverse screw is controlled to rotate by the second clamping motor, thereby driving the centering movable rods to approach each other, and the barrel is clamped by the other end of the centering movable rod to fix its position.

8. A quartz crucible sand unloading device according to claim 7, characterized in that: A second buffer pad is provided on the inner side of each of the centering movable rods, and the second buffer pad is in direct contact with the barrel to protect the surface of the barrel during clamping.

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