Sapphire growth furnace capable of being continuously used

Abstract

The utility model relates to the technical field of sapphire growing furnaces, in particular to a sapphire growing furnace capable of being continuously used, which can automatically clean scale in a furnace body, save manpower and improve the working efficiency by arranging the sapphire growing furnace capable of being continuously used. Comprising a furnace body and a cleaning mechanism, the cleaning mechanism is installed on the furnace body and comprises a screw rod, a screw block, a guide rail, a worm, a worm gear, a first motor, a turnover device, a buckling device, a supporting device, a rotating mechanism and a bottom cleaning device, the guide rail is installed at the left end of the furnace body, the screw rod is rotatably installed on the guide rail, the screw block is in threaded connection with the screw rod, and the screw block is in sliding connection with the guide rail; the buckling device is installed at the rear end of the screw block, the buckling device and the turnover device are clamped in a matched mode, the supporting device is installed at the bottom of the turnover device, the rotating mechanism is installed on the top of the turnover device, and the bottom cleaning device is installed on the rotating mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of sapphire growth furnaces, in particular to a continuously usable sapphire growth furnace. Background Technique

[0002] Sapphire, with the mineral name corundum, is a trigonal crystal system crystal. It is the second hardest crystal material in the world after diamond. Due to its extremely high strength, hardness, infrared transmission performance and thermal shock resistance, as an important technical crystal material, it is widely used in a series of high-tech fields such as national defense, military, and scientific research. The sapphire growth furnace is a container for promoting the growth of sapphire. Sapphire is placed inside the furnace body containing a chemical solvent, and then the furnace body heats the chemical solvent, and then cools the chemical solvent, so as to achieve the purpose of promoting the growth of sapphire. However, scale will be generated when the chemical solvent cools. After the grown sapphire is taken out, the furnace body needs to be cleaned. The existing method for cleaning the furnace body is to manually use a cleaning cloth to clean it inside. This method is more cumbersome, time-consuming and laborious, and the work efficiency is relatively low. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a continuously usable sapphire growth furnace that can automatically clean the scale in the furnace body, save manpower and improve its work efficiency by setting this device.

[0004] A continuously usable sapphire growth furnace of the utility model includes a furnace body and a cleaning mechanism. The cleaning mechanism is installed on the furnace body. The cleaning mechanism includes a screw rod, a screw block, a guide rail, a worm, a worm gear, a first motor, a flipping device, a buckling device, a supporting device, a rotating mechanism and a bottom cleaning device. The guide rail is installed at the left end of the furnace body. The screw rod is rotatably installed on the guide rail. The screw block is threadedly connected with the screw rod. The screw block is slidably connected with the guide rail. The worm is rotatably installed at the lower side inside the guide rail. The worm gear is installed at the lower part of the screw rod. The worm gear is meshed with the worm. The first motor is installed at the lower front side of the guide rail. The output end of the first motor passes through the guide rail and is connected with the front end of the worm. The flipping device is installed on the screw block. The buckling device is installed at the rear end of the screw block. The buckling device is cooperatively clamped with the flipping device. The supporting device is installed at the bottom of the flipping device. The rotating mechanism is installed on the top of the flipping device. The bottom cleaning device is installed on the rotating mechanism.

[0005] Preferably, the flipping device includes a flipping frame, a driving plate, a first electric push rod and a mounting plate. The flipping frame is rotatably installed at the left end of the screw block. The driving plate corresponds to the flipping frame in position. The driving plate is installed at the output end of the first electric push rod. The first electric push rod is installed on the mounting plate. The mounting plate is installed at the lower left side of the screw block. The buckling device is cooperatively clamped with the flipping frame. The supporting device is connected to the left bottom end of the flipping frame. The rotating mechanism is installed on the upper part of the flipping frame.

[0006] Preferably, the fastening device includes a clamping block, a clamping rod, a limiting rod, and a second electric push rod. The clamping block is installed on the right side of the front end of the flipping frame. The clamping block is rotatably connected to the screw block. The second electric push rod is installed on the left side of the front end of the screw block. The clamping rod is installed at the output end of the second electric push rod. The clamping rod is engaged with the clamping block for clamping. The limiting rod is installed at the rear end of the clamping rod. A limiting groove is provided on the left side of the front end of the screw block. The limiting rod slides in the limiting groove of the screw block.

[0007] Preferably, the supporting device includes a first fixing rod, a first spring, a first sliding rod, and a bottom plate. The first fixing rod is installed on the left side of the bottom end of the flipping frame. A telescopic groove is provided at the bottom end of the first fixing rod. The first sliding rod slides in the telescopic groove of the first fixing rod. The bottom end of the first sliding rod is connected to the top end of the bottom plate. The first spring is sleeved on the first sliding rod. One end of the first spring is connected to the first fixing rod, and the other end of the first spring is connected to the first sliding rod.

[0008] Preferably, the rotating mechanism includes a second motor, a connecting rod, a chuck, three groups of first connecting rods, three groups of cleaning plates, a second spring, three groups of second connecting rods, a collar, and a support rod. The second motor is installed on the upper side of the left end of the flipping frame. The output end of the second motor passes through the flipping frame and is connected to the left end of the connecting rod. The chuck is installed on the connecting rod. The three groups of first connecting rods are evenly and rotatably installed on the chuck. The other ends of the three groups of first connecting rods are rotatably connected to the three groups of cleaning plates. One ends of the three groups of second connecting rods are rotatably connected to the three groups of cleaning plates. The other ends of the three groups of second connecting rods are rotatably connected to the collar. The collar is fixedly sleeved on the support rod. The bottom cleaning device is installed on the three groups of second connecting rods. A telescopic groove is provided at the left end of the support rod. The connecting rod slides in the telescopic groove of the support rod. The second spring is sleeved on the connecting rod. One end of the second spring is connected to the connecting rod, and the other end of the second spring is connected to the support rod.

[0009] Preferably, the bottom cleaning device includes three groups of second fixing rods, three groups of third springs, three groups of second sliding rods, and multiple groups of cleaning rollers. The three groups of second fixing rods are respectively installed on the three groups of second connecting rods. Telescopic grooves are provided at the left ends of the three groups of second sliding rods. The three groups of second sliding rods are slidably connected to the three groups of second fixing rods through the telescopic grooves. The three groups of third springs are respectively sleeved on the three groups of second fixing rods. One ends of the three groups of third springs are connected to the three groups of second fixing rods, and the other ends of the three groups of third springs are connected to the three groups of second sliding rods. The multiple groups of cleaning rollers are respectively rotatably installed at the right ends of the three groups of second sliding rods. The three groups of second sliding rods are longer than the support rod.

[0010] Preferably, an anti-slip pad is provided at the bottom end of the bottom plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: After taking out the sapphire from the furnace body, the flipping device is opened to make the flipping device drive the rotating mechanism to be in a vertical state, and then the flipping device is fixed by the buckling device. After that, the first motor is turned on, and the first motor drives the worm to rotate. The worm meshes with the worm wheel, and the worm wheel drives the screw to rotate. The screw is threadedly connected to the screw block, and the screw block drives the flipping device to move downward. The flipping device drives the rotating mechanism to move downward. While the rotating mechanism moves downward, the bottom cleaning device first contacts the bottom inside the furnace body. The bottom cleaning device makes the rotating mechanism expand and contact the inner side wall of the furnace body. The rotating mechanism contacts the bottom and the side wall inside the furnace body. After the bottom cleaning device contacts the bottom inside the furnace body, the rotating mechanism is turned on, and the rotating mechanism drives the bottom cleaning device to rotate. The rotating mechanism and the bottom cleaning device clean the inner wall of the furnace body. By setting this device, the scale inside the furnace body can be automatically cleaned, saving manpower and improving its working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the first perspective structural schematic diagram of the present utility model;

[0013] Figure 2 is the second perspective structural schematic diagram of the present utility model;

[0014] Figure 3 is Figure 1 the enlarged structural schematic diagram of A in

[0015] Figure 4 is Figure 2 the enlarged structural schematic diagram of B in

[0016] Reference numerals in the drawings: 1, furnace body; 2, screw; 3, screw block; 4, guide rail; 5, worm; 6, worm wheel; 7, first motor; 8, flipping frame; 9, driving plate; 10, first electric push rod; 11, mounting plate; 12, clamping block; 13, clamping rod; 14, limiting rod; 15, second electric push rod; 16, first fixing rod; 17, first spring; 18, first sliding rod; 19, bottom plate; 20, second motor; 21, connecting rod; 22, chuck; 23, first connecting rod; 24, cleaning plate; 25, second spring; 26, second connecting rod; 27, collar; 28, support rod; 29, second fixing rod; 30, third spring; 31, second sliding rod; 32, cleaning roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0018] As Figures 1 to 4As shown in the figure, a continuously usable sapphire growth furnace of the present utility model includes a furnace body 1 and a cleaning mechanism. The cleaning mechanism is installed on the furnace body 1. The cleaning mechanism includes a screw rod 2, a screw block 3, a guide rail 4, a worm 5, a worm gear 6, a first motor 7, a flipping device, a fastening device, a supporting device, a rotating mechanism, and a bottom cleaning device. The guide rail 4 is installed at the left end of the furnace body 1. The screw rod 2 is rotatably installed on the guide rail 4. The screw block 3 is threadedly connected to the screw rod 2. The screw block 3 is slidably connected to the guide rail 4. The worm 5 is rotatably installed at the lower side inside the guide rail 4. The worm gear 6 is installed at the lower part of the screw rod 2. The worm gear 6 is meshed with the worm 5. The first motor 7 is installed at the lower side of the front end of the guide rail 4. The output end of the first motor 7 passes through the guide rail 4 and is connected to the front end of the worm 5. The flipping device is installed on the screw block 3. The fastening device is installed at the rear end of the screw block 3. The fastening device is cooperatively clamped with the flipping device. The supporting device is installed at the bottom of the flipping device. The rotating mechanism is installed at the top of the flipping device. The bottom cleaning device is installed on the rotating mechanism;

[0019] After taking out the sapphire from the furnace body 1, open the flipping device to make the flipping device drive the rotating mechanism to be in a vertical state. Then, fix the flipping device through the fastening device. After that, turn on the first motor 7. The first motor 7 drives the worm 5 to rotate. The worm 5 meshes with the worm gear 6. The worm gear 6 drives the screw rod 2 to rotate. The screw rod 2 is threadedly connected to the screw block 3. The screw block 3 drives the flipping device to move downward. The flipping device drives the rotating mechanism to move downward. While the rotating mechanism moves downward, the bottom cleaning device first contacts the inner bottom of the furnace body 1. The bottom cleaning device makes the rotating mechanism expand and contact the inner side wall of the furnace body 1. The rotating mechanism contacts the inner bottom and side wall of the furnace body 1. After the bottom cleaning device contacts the inner bottom of the furnace body 1, turn on the rotating mechanism. The rotating mechanism drives the bottom cleaning device to rotate. The rotating mechanism and the bottom cleaning device clean the inner wall of the furnace body 1. By setting this device, the scale in the furnace body 1 can be automatically cleaned, saving labor and improving its working efficiency.

[0020] As a preference of the above embodiment, the flipping device includes a flipping frame 8, a driving plate 9, a first electric push rod 10, and a mounting plate 11. The flipping frame 8 is rotatably installed at the left end of the screw block 3. The driving plate 9 corresponds to the position of the flipping frame 8. The driving plate 9 is installed at the output end of the first electric push rod 10. The first electric push rod 10 is installed on the mounting plate 11. The mounting plate 11 is installed at the lower left side of the screw block 3. The fastening device is cooperatively clamped with the flipping frame 8. The supporting device is connected to the left bottom end of the flipping frame 8. The rotating mechanism is installed at the upper part of the flipping frame 8;

[0021] By setting up the flipping frame 8, driving plate 9, first electric push rod 10 and mounting plate 11, by turning on the first electric push rod 10, the first electric push rod 10 drives the flipping frame 8 to flip upward through the driving plate 9, so that the flipping frame 8 drives the rotating mechanism to be in a vertical state. The driving plate 9 preliminarily limits the flipping frame 8, and then the flipping frame 8 is fixed by the fastening device, driving the rotating mechanism to flip to the vertical state.

[0022] As a preference of the above embodiment, the fastening device includes a clamping block 12, a clamping rod 13, a limiting rod 14 and a second electric push rod 15. The clamping block 12 is installed on the right side of the front end of the flipping frame 8. The clamping block 12 is rotatably connected to the screw block 3. The second electric push rod 15 is installed on the left side of the front end of the screw block 3. The clamping rod 13 is installed at the output end of the second electric push rod 15. The clamping rod 13 is cooperatively clamped with the clamping block 12. The limiting rod 14 is installed at the rear end of the clamping rod 13. A limiting groove is provided on the left side of the front end of the screw block 3. The limiting rod 14 slides in the limiting groove of the screw block 3.

[0023] By setting up the clamping block 12, clamping rod 13, limiting rod 14 and second electric push rod 15, when the flipping frame 8 drives the rotating mechanism to rotate to the vertical position, the clamping rod 13 corresponds to the position of the clamping block 12. Then turn on the second electric push rod 15, and the second electric push rod 15 drives the clamping rod 13 to move backward and cooperate with the clamping block 12 for clamping. The clamping rod 13 drives the limiting rod 14 to slide on the screw block 3, thereby fixing the flipping frame 8, playing a role in fixing the flipping frame 8.

[0024] As a preference of the above embodiment, the supporting device includes a first fixing rod 16, a first spring 17, a first sliding rod 18 and a bottom plate 19. The first fixing rod 16 is installed on the left side of the bottom end of the flipping frame 8. A telescopic groove is provided at the bottom end of the first fixing rod 16. The first sliding rod 18 slides in the telescopic groove of the first fixing rod 16. The bottom end of the first sliding rod 18 is connected to the top end of the bottom plate 19. The first spring 17 is sleeved on the first sliding rod 18. One end of the first spring 17 is connected to the first fixing rod 16, and the other end of the first spring 17 is connected to the first sliding rod 18.

[0025] By setting up the first fixing rod 16, first spring 17, first sliding rod 18 and bottom plate 19, under the action of the first spring 17, the first fixing rod 16, first sliding rod 18 and bottom plate 19 support the whole flipping frame 8, playing a role in supporting the flipping frame 8.

[0026] Preferably, as an embodiment above, the rotating mechanism includes a second motor 20, a connecting rod 21, a chuck 22, three groups of first connecting rods 23, three groups of cleaning plates 24, a second spring 25, three groups of second connecting rods 26, a collar 27 and a support rod 28. The second motor 20 is installed on the upper side of the left end of the flipping frame 8. The output end of the second motor 20 passes through the flipping frame 8 and is connected to the left end of the connecting rod 21. The chuck 22 is installed on the connecting rod 21. The three groups of first connecting rods 23 are equally rotatably installed on the chuck 22. The other ends of the three groups of first connecting rods 23 are rotatably connected to the three groups of cleaning plates 24. One ends of the three groups of second connecting rods 26 are rotatably connected to the three groups of cleaning plates 24. The other ends of the three groups of second connecting rods 26 are rotatably connected to the collar 27. The collar 27 is fixedly sleeved on the support rod 28. The bottom cleaning device is installed on the three groups of second connecting rods 26. A telescopic groove is provided at the left end of the support rod 28. The connecting rod 21 is slidably connected to the telescopic groove of the support rod 28. The second spring 25 is sleeved on the connecting rod 21. One end of the second spring 25 is connected to the connecting rod 21. The other end of the second spring 25 is connected to the support rod 28;

[0027] By providing the second motor 20, the connecting rod 21, the chuck 22, the first connecting rod 23, the cleaning plate 24, the second spring 25, the second connecting rod 26, the collar 27 and the support rod 28, when the support rod 28 moves downward, the bottom cleaning device first contacts the inner bottom of the furnace body 1, and then the bottom cleaning device drives the collar 27 to move upward through the three groups of second connecting rods 26. The collar 27 drives the support rod 28 to slide on the connecting rod 21. The second spring 25 is in a compressed state. The collar 27 drives the three groups of cleaning plates 24 to open through the three groups of second connecting rods 26, so that the three groups of cleaning plates 24 are closely attached to the inner side wall of the furnace body 1. After the support rod 28 contacts the inner bottom of the furnace body 1, the second motor 20 is turned on. The second motor 20 drives the support rod 28 to rotate. The three groups of cleaning plates 24 and the bottom cleaning device rotate around the support rod 28 in all directions, so as to clean the inner wall of the furnace body 1, playing a role in driving the rotating mechanism to rotate and cleaning the inner wall of the furnace body 1.

[0028] Preferably, as an embodiment above, the bottom cleaning device includes three groups of second fixing rods 29, three groups of third springs 30, three groups of second sliding rods 31 and multiple groups of cleaning rollers 32. The three groups of second fixing rods 29 are respectively installed on the three groups of second connecting rods 26. Telescopic grooves are provided at the left ends of the three groups of second sliding rods 31. The three groups of second sliding rods 31 are slidably connected to the three groups of second fixing rods 29 through the telescopic grooves. The three groups of third springs 30 are respectively sleeved on the three groups of second fixing rods 29. One end of the three groups of third springs 30 is connected to the three groups of second fixing rods 29. The other end of the three groups of third springs 30 is connected to the three groups of second sliding rods 31. The multiple groups of cleaning rollers 32 are respectively rotatably installed at the right ends of the three groups of second sliding rods 31. The three groups of second sliding rods 31 are longer than the support rod 28;

[0029] By setting the second fixed rod 29, the third spring 30, the second sliding rod 31 and the cleaning roller 32, multiple groups of cleaning rollers 32 first contact the inner bottom of the furnace body 1. Multiple groups of cleaning rollers 32 drive the three second sliding rods 31 to slide on the three second fixed rods 29, and the three third springs 30 are in a compressed state. The three second fixed rods 29 drive the collar 27 and the support rod 28 to move upward through the three second connecting rods 26, so as to open the three cleaning plates 24 and play a role in cleaning the inner bottom of the furnace body 1.

[0030] As a preference of the above embodiment, an anti-slip pad is provided at the bottom end of the bottom plate 19;

[0031] It can increase the friction between the bottom plate 19 and the ground and play an anti-slip role.

[0032] For a continuously usable sapphire growth furnace of the present invention, during its operation, first, after taking out the sapphire from the furnace body 1, the first electric push rod 10 is opened. The first electric push rod 10 drives the driving plate 9 to drive the turning frame 8 to turn upward, so that the turning frame 8 drives the connecting rod 21 to be in an overall vertical state. The driving plate 9 preliminarily limits the turning frame 8. When the turning frame 8 rotates to the vertical position, the clamping rod 13 corresponds to the position of the clamping block 12. Then the second electric push rod 15 is opened. The second electric push rod 15 drives the clamping rod 13 to move backward to cooperate with the clamping block 12 for clamping. The clamping rod 13 drives the limiting rod 14 to slide on the screw block 3, so as to fix the turning frame 8. After that, the first motor 7 is opened. The first motor 7 drives the worm 5 to rotate. The worm 5 meshes with the worm gear 6. The worm gear 6 drives the screw rod 2 to rotate. The screw rod 2 is threadedly connected to the screw block 3. The screw block 3 drives the turning frame 8 to move downward. The turning frame 8 drives the connecting rod 21 to move downward as a whole. During the downward movement of the connecting rod 21, multiple groups of cleaning rollers 32 first contact the inner bottom of the furnace body 1. Multiple groups of cleaning rollers 32 drive the three second sliding rods 31 to slide on the three second fixed rods 29, and the three third springs 30 are in a compressed state. The three second fixed rods 29 drive the collar 27 and the support rod 28 to move upward through the three second connecting rods 26, so as to open the three cleaning plates 24. After the support rod 28 contacts the inner bottom of the furnace body 1, the second motor 20 is opened. The second motor 20 drives the support rod 28 to rotate. The three cleaning plates 24 and multiple groups of cleaning rollers 32 rotate around the support rod 28 to the surroundings, so as to clean the inner wall of the furnace body 1.

[0033] For the installation method, connection method or setting method of a continuously usable sapphire growth furnace of the present invention, they are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the first motor 7, the first electric push rod 10, the second electric push rod 15 and the second motor 20 of a continuously usable sapphire growth furnace of the present invention are purchased on the market, and those skilled in the art only need to install and operate according to the attached user manual.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A continuously usable sapphire growth furnace, comprising a furnace body (1) and a cleaning mechanism, wherein the cleaning mechanism is mounted on the furnace body (1), and is characterized in that: The cleaning mechanism comprises a screw (2), a screw block (3), a guide rail (4), a worm (5), a worm gear (6), a first motor (7), a flipping device, a locking device, a supporting device, a rotating mechanism and a bottom cleaning device. The guide rail (4) is mounted on the left end of the furnace body (1); the screw (2) is rotatably mounted on the guide rail (4); the screw block (3) is threadedly connected to the screw (2); the screw block (3) is slidably connected to the guide rail (4); the worm (5) is rotatably mounted on the inner lower side of the guide rail (4); the worm gear (6) is mounted on the lower part of the screw (2); the worm gear (6) is meshed with the worm (5); the first motor (7) is mounted on the lower side of the front end of the guide rail (4); the output end of the first motor (7) passes through the guide rail (4) and is connected to the front end of the worm (5); the flipping device is mounted on the screw block (3); the locking device is mounted on the rear end of the screw block (3); the locking device and the flipping device are clamped together; the supporting device is mounted on the bottom of the flipping device; the rotating mechanism is mounted on the top of the flipping device; and the bottom cleaning device is mounted on the rotating mechanism.

2. A continuously usable sapphire growth furnace as claimed in claim 1, characterized in that: The turning device comprises a turning frame (8), a driving plate (9), a first electric push rod (10) and a mounting plate (11); the turning frame (8) is rotatably mounted on the left end of the screw block (3); the driving plate (9) corresponds to the turning frame (8); the driving plate (9) is mounted on the output end of the first electric push rod (10); the first electric push rod (10) is mounted on the mounting plate (11); the mounting plate (11) is mounted on the lower side of the left end of the screw block (3); the buckling device is matched with the turning frame (8) and clamped; the supporting device is connected to the left side of the bottom end of the turning frame (8); and the rotating mechanism is mounted on the upper part of the turning frame (8).

3. A continuously usable sapphire growth furnace as claimed in claim 2, characterized in that: The locking device comprises a clamping block (12), a clamping rod (13), a limiting rod (14) and a second electric push rod (15); the clamping block (12) is mounted on the right side of the front end of the flip frame (8); the clamping block (12) is rotatably connected to the screw block (3); the second electric push rod (15) is mounted on the left side of the front end of the screw block (3); the clamping rod (13) is mounted on the output end of the second electric push rod (15); the clamping rod (13) and the clamping block (12) are matched and clamped; the limiting rod (14) is mounted on the rear end of the clamping rod (13); a limiting groove is arranged on the left side of the front end of the screw block (3); and the limiting rod (14) slides in the limiting groove of the screw block (3).

4. A continuously usable sapphire growth furnace as claimed in claim 3, characterized in that: The supporting device comprises a first fixed rod (16), a first spring (17), a first sliding rod (18) and a bottom plate (19). The first fixed rod (16) is installed on the left side of the bottom end of the flip frame (8). The bottom end of the first fixed rod (16) is provided with a telescopic groove. The first sliding rod (18) slides in the telescopic groove of the first fixed rod (16). The bottom end of the first sliding rod (18) is connected to the top end of the bottom plate (19). The first spring (17) is sleeved on the first sliding rod (18). One end of the first spring (17) is connected to the first fixed rod (16), and the other end of the first spring (17) is connected to the first sliding rod (18).

5. A continuously usable sapphire growth furnace as claimed in claim 4, characterized in that: The rotating mechanism comprises a second motor (20), a connecting rod (21), a chuck (22), three groups of first connecting rods (23), three groups of cleaning plates (24), a second spring (25), three groups of second connecting rods (26), a collar (27) and a support rod (28), wherein the second motor (20) is mounted on the upper left side of the flip frame (8), the output end of the second motor (20) passes through the flip frame (8) and is connected to the left end of the connecting rod (21), the chuck (22) is mounted on the connecting rod (21), the three groups of first connecting rods (23) are evenly rotatably mounted on the chuck (22), the other ends of the three groups of first connecting rods (23) are connected to the three groups of cleaning plates ( The bottom cleaning device is installed on the three groups of second connecting rods (26). The left end of the support rod (28) is provided with a telescopic groove. The connecting rod (21) is slidably connected with the telescopic groove of the support rod (28). The second spring (25) is sleeved on the connecting rod (21). One end of the second spring (25) is connected to the connecting rod (21). The other end of the second spring (25) is connected to the support rod (28).

6. A continuously usable sapphire growth furnace as claimed in claim 5, characterized in that: The bottom cleaning device comprises three groups of second fixed rods (29), three groups of third springs (30), three groups of second sliding rods (31) and multiple groups of cleaning rollers (32). The three groups of second fixed rods (29) are respectively mounted on the three groups of second connecting rods (26). The left ends of the three groups of second sliding rods (31) are all provided with telescopic grooves. The three groups of second sliding rods (31) are slidably connected with the three groups of second fixed rods (29) through the telescopic grooves. The three groups of third springs (30) are respectively sleeved on the three groups of second fixed rods (29). One ends of the three groups of third springs (30) are connected with the three groups of second fixed rods (29), and the other ends of the three groups of third springs (30) are connected with the three groups of second sliding rods (31). The multiple groups of cleaning rollers (32) are respectively rotatably mounted on the right ends of the three groups of second sliding rods (31). The three groups of second sliding rods (31) are longer than the support rods (28).

7. A continuously usable sapphire growth furnace as claimed in claim 6, characterized in that: An anti-slip pad is arranged at the bottom end of the bottom plate (19).

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