Spraying device for quartz crucible production

Abstract

The utility model relates to the technical field of quartz crucible production, in particular to a spraying device for quartz crucible production, which comprises a worktable and a bottom plate, a rotating disc is rotatably mounted on the upper side of the worktable, a coating box is arranged on the upper side of the bottom plate, a first pump is mounted at the top of the coating box, a first spray pipe is mounted at the output end of the first pump, and multiple groups of first spray heads are mounted on one side wall of the spray pipe. The top of the first spraying pipe communicates with a multi-opening nozzle. A second pump body is installed on one side wall of the coating box, a second spray pipe is installed at the output end of the second pump body, multiple second spray nozzles are installed on the side, close to the workbench, of the second spray pipe, the top of the second spray pipe rotationally communicates with an arc-shaped spray pipe, and multiple third spray nozzles are installed on the lower side of the arc-shaped spray pipe. Compared with the prior art, the spraying device has the advantages that two sets of spraying structures are arranged in the spraying device, the inverted quartz crucible on the upper side is driven to rotate through the rotating disc, uniform spraying on the inner wall and the outer wall of the quartz crucible is achieved, and spraying dead angles cannot exist, and the spraying quality cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz crucible production, in particular to a spraying device for quartz crucible production. Background Art

[0002] Quartz crucibles are mainly used for pulling single crystal silicon by the Czochralski method, that is, polycrystalline silicon is heated at high temperature to melt it in the quartz crucible, and then a crystal puller is used to grow the single crystal by pulling it. Since the pulling time of single crystals is long, the quartz crucible is usually subjected to long-term thermal stress and is prone to deformation, which affects the results of crystal pulling. In order to solve the problem of easy deformation of the crucible, a layer of high-temperature resistant coating is sprayed on the inner surface of the crucible, which can effectively improve the quartz crucible's resistance to thermal deformation and increase the service life of the crucible. Therefore, a spraying device is required after the quartz crucible is produced.

[0003] For the spraying of quartz crucibles, since the shape of the quartz crucible is a barrel with one end open, it is necessary to spray the inner and outer walls of the quartz crucible evenly. It is not convenient to spray the inner and outer walls of the quartz crucible at the same time with the same set of equipment, and the spraying is uneven. However, due to the large size of the crucible, it is not convenient to carry and flip it, which affects the spraying efficiency of the quartz crucible. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that it is inconvenient to spray the inner and outer walls of the quartz crucible at the same time with the same set of equipment during spraying, and the spraying is uneven. However, due to the large volume of the crucible, it is inconvenient to carry and flip it, which affects the spraying efficiency of the quartz crucible.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a spraying device for producing quartz crucibles, comprising a workbench, a plurality of groups of supporting legs are installed on the lower side of the workbench, a bottom plate is installed between the plurality of groups of supporting legs, a circular groove is provided on the upper side of the workbench, a rotating disk is rotatably installed inside the circular groove, a paint box is provided on the upper side of the bottom plate, a pump body connected to the paint box is installed on the top of the paint box, a nozzle is installed on the output end of the pump body, a plurality of groups of nozzles are installed on one side wall of the nozzle, and a plurality of nozzles are connected to the top of the nozzle;

[0008] A pump body 2 connected to the paint box is installed on one side wall of the paint box, a nozzle 2 is installed at the output end of the pump body 2, multiple groups of nozzles 2 are installed on the side of the nozzle 2 close to the workbench, the top of the nozzle 2 is connected to an arc-shaped nozzle through a rotary joint, and multiple groups of nozzles 3 are installed on the lower side of the arc-shaped nozzle.

[0009] As an improvement, a positioning ring is installed on the lower side of the rotating disk, a through hole for the positioning ring to pass through is provided at the center of the bottom of the circular groove, a worm gear is installed on the lower side of the positioning ring, and a worm meshing with the worm gear is installed on the lower side of the workbench.

[0010] As an improvement, a motor is installed at one end of the worm, and two sets of connecting frames are installed on the lower side of the workbench. One end of the worm is rotatably connected to one set of connecting frames, and the motor is installed inside the other set of connecting frames.

[0011] As an improvement, a through hole is provided at the center of the rotating disk, and an upper end of the nozzle passes through the through hole on the inner side of the positioning ring and the center of the rotating disk respectively.

[0012] As an improvement, multiple sets of balls are installed on the outer wall and lower side of the rotating disk.

[0013] As an improvement, L-shaped mounting frames are respectively installed on opposite sides of the workbench, an electric telescopic rod is installed passing through the interior of the L-shaped mounting frame, and a V-shaped protective frame is installed on the protruding end of the electric telescopic rod.

[0014] As an improvement, multiple sets of ball bearings are installed on the inner wall of the V-shaped protective frame.

[0015] 3. Beneficial Effects

[0016] The advantages of the present invention over the prior art are as follows: the spraying device of the present application is provided with two sets of spraying structures, which rotate the inverted quartz crucible on the upper side by the rotating disk to achieve uniform spraying of the inner and outer walls of the quartz crucible;

[0017] The inner wall of the quartz crucible is sprayed by cooperating with the pump body 1, the nozzle 1, the nozzle head 1 and the multi-nozzle nozzle. The outer wall of the quartz crucible is sprayed by cooperating with the pump body 2, the nozzle 2, the nozzle head 2, the arc nozzle and the nozzle head. The multi-nozzle nozzle, the arc nozzle and the nozzle head 3 facilitate uniform spraying of the inner and outer walls of the top of the quartz crucible to prevent the occurrence of spraying dead angles and affect the spraying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a spraying device for producing quartz crucibles.

[0019] Figure 2 The utility model is a schematic diagram of the workbench connection structure of a spraying device for producing quartz crucibles.

[0020] Figure 3 The utility model is a schematic diagram of the lower side structure of a rotating disk of a spraying device for producing quartz crucibles.

[0021] Figure 4 The utility model is a schematic diagram of a worm connection structure of a spraying device for producing quartz crucibles.

[0022] As shown in the figure: 1. Workbench; 2. Support legs; 3. Bottom plate; 4. Through hole; 5. Circular groove; 6. Positioning ring; 7. Rotating disk; 8. Worm gear; 9. Worm; 10. Motor; 11. Connecting frame; 12. Ball bearing 1; 13. Paint box; 14. Pump body 1; 15. Nozzle 1; 16. Nozzle head 1; 17. Multi-port nozzle; 18. Pump body 2; 19. Nozzle 2; 20. Nozzle head 2; 21. Arc nozzle; 22. Nozzle head 3; 23. L-shaped mounting frame; 24. Electric telescopic rod; 25. V-shaped protective frame; 26. Ball bearing 2. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] As attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, a spraying device for producing quartz crucibles includes a workbench 1, with multiple groups of support legs 2 installed on the lower side of the workbench 1, a bottom plate 3 installed between the multiple groups of support legs 2, a circular groove 5 provided on the upper side of the workbench 1, a rotating disk 7 rotatably installed inside the circular groove 5, a paint box 13 provided on the upper side of the bottom plate 3, a pump body 14 connected to the paint box 13 is installed on the top of the paint box 13, a nozzle 15 is installed on the output end of the pump body 14, multiple groups of nozzles 16 are installed on the side wall of the nozzle 15, and multiple nozzles 17 are connected to the top of the nozzle 15;

[0026] A pump body 2 18 connected to the paint box 13 is installed on one side wall of the paint box 13, and a nozzle 2 19 is installed on the output end of the pump body 2 18. A plurality of groups of nozzles 2 20 are installed on the side of the nozzle 2 19 close to the workbench 1. The top of the nozzle 2 19 is connected to an arc nozzle 21 through a rotary joint, and a plurality of groups of nozzles 3 22 are installed on the lower side of the arc nozzle 21.

[0027] Through the above structure, the quartz crucible is inverted on the upper side of the rotating disk 7, and the quartz crucible is driven to rotate slowly by the rotating disk 7. The external controller is connected to the pump body 14 and the pump body 2 18 for control. The paint in the paint box 13 is delivered to the nozzle 15 through the pump body 14. The paint is evenly sprayed onto the inner wall of the quartz crucible through the multiple groups of nozzles 16 on the nozzle 15. The nozzle 15 delivers part of the paint to the multi-port nozzle 17. The multi-port nozzle 17 sprays the top of the inner wall of the quartz crucible at multiple angles to ensure that the inner wall of the quartz crucible is evenly sprayed.

[0028] The paint in the paint box 13 is delivered to the second nozzle 19 through the second pump body 18, and the paint is sprayed onto the outer wall of the quartz crucible through the multiple groups of second nozzles 20. The arc nozzle 21 is rotated to the upper side of the top of the quartz crucible, and part of the paint in the second nozzle 19 is delivered to the arc nozzle 21. The paint is evenly sprayed on the top of the outer wall through the multiple groups of third nozzles 22 on the arc nozzle 21 to ensure that the outer wall of the quartz crucible is evenly sprayed. The specific structure is as follows:

[0029] Combined with attachment Figure 3 and attached Figure 4 As shown, a positioning ring 6 is installed on the lower side of the rotating disk 7, and a through hole 4 for the positioning ring 6 to pass through is provided at the bottom center of the circular groove 5. A worm gear 8 is installed on the lower side of the positioning ring 6, and a worm 9 meshing with the worm gear 8 is installed on the lower side of the workbench 1. A motor 10 is installed at one end of the worm 9, and two groups of connecting frames 11 are installed on the lower side of the workbench 1. One end of the worm 9 is rotatably connected to one group of connecting frames 11, and the motor 10 is installed inside the other group of connecting frames 11.

[0030] Through the above structure, the external controller is connected to the motor 10 and controlled. The motor 10 drives the worm 9 to rotate, and the worm 9 drives the worm wheel 8 to rotate at the same time. The worm wheel 8 drives the positioning ring 6 to rotate inside the through hole 4, thereby driving the rotating disk 7 to rotate, thereby realizing the slow rotation of the quartz crucible.

[0031] Combined with attachment Figure 1 and attached Figure 3 As shown, a through hole is provided at the center of the rotating disk 7, and the upper end of the nozzle 15 passes through the through holes on the inner side of the positioning ring 6 and the center of the rotating disk 7 respectively. Multiple sets of balls 12 are installed on the outer wall and the lower side of the rotating disk 7.

[0032] Through the above structure, the nozzle 15 passes through the through hole on the inner side of the positioning ring 6 and the center of the rotating disk 7. When the quartz crucible rotates, it will not affect the feeding of the nozzle 15. The rotating disk 7 rotates stably inside the circular groove 5 through the multiple groups of balls 12, and the rotation resistance of the rotating disk 7 is reduced by the multiple groups of balls 12.

[0033] Example 2

[0034] Based on the first embodiment, please refer to the attached Figure 1 An L-shaped mounting frame 23 is installed on opposite sides of the workbench 1. An electric telescopic rod 24 is installed inside the L-shaped mounting frame 23. A V-shaped protective frame 25 is installed on the protruding end of the electric telescopic rod 24. Multiple sets of ball bearings 26 are installed on the inner wall of the V-shaped protective frame 25.

[0035] Through the above structure of Example 2, after the quartz crucible is inverted on the upper side of the rotating disk 7, there is a large friction between the quartz crucible port and the rotating disk 7, and the rotation speed of the rotating disk 7 is low, which will not cause the quartz crucible to move on the upper side of the rotating disk 7. However, in order to protect the quartz crucible, V-shaped protective frames 25 are installed on the opposite sides of the workbench 1, and the position of the V-shaped protective frame 25 is adjusted by extending the electric telescopic rod 24 so that the V-shaped protective frame 25 is close to the outer wall of the quartz crucible but does not contact the outer wall of the quartz crucible, which will not affect the spraying effect of the outer wall of the quartz crucible. When the quartz crucible moves unexpectedly, the quartz crucible is supported by the side walls of the V-shaped protective frame 25 to prevent the quartz crucible from falling off the rotating disk 7 and causing damage. In addition, the outer wall of the quartz crucible contacts with the multiple groups of balls 26, and the contact area is small, which will not cause large-scale damage to the high-temperature resistant coating on the outer wall of the quartz crucible.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0038] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A spraying device for producing quartz crucibles, comprising a workbench (1), wherein a plurality of groups of supporting legs (2) are mounted on the lower side of the workbench (1), and a bottom plate (3) is mounted between the plurality of groups of supporting legs (2), characterized in that: A circular groove (5) is provided on the upper side of the workbench (1), a rotating disk (7) is rotatably installed inside the circular groove (5), a paint box (13) is provided on the upper side of the bottom plate (3), a pump body (14) connected to the paint box (13) is installed on the top of the paint box (13), a nozzle (15) is installed on the output end of the pump body (14), multiple groups of nozzles (16) are installed on the side wall of the nozzle (15), and multiple nozzles (17) are connected to the top of the nozzle (15); A second pump body (18) connected to the paint box (13) is installed on one side wall of the paint box (13), and a second nozzle (19) is installed on the output end of the second pump body (18). A plurality of second nozzles (20) are installed on the side of the second nozzle (19) close to the workbench (1). The top of the second nozzle (19) is connected to an arc nozzle (21) through a rotary joint, and a plurality of third nozzles (22) are installed on the lower side of the arc nozzle (21).

2. The spraying device for producing a quartz crucible according to claim 1, characterized in that: A positioning ring (6) is installed on the lower side of the rotating disk (7), a through hole (4) for the positioning ring (6) to pass through is provided at the center of the bottom of the circular groove (5), a worm wheel (8) is installed on the lower side of the positioning ring (6), and a worm (9) meshing with the worm wheel (8) is installed on the lower side of the workbench (1).

3. The spraying device for producing a quartz crucible according to claim 2, characterized in that: A motor (10) is installed at one end of the worm (9), and two groups of connecting frames (11) are installed on the lower side of the workbench (1). One end of the worm (9) is rotatably connected to one group of connecting frames (11), and the motor (10) is installed inside the other group of connecting frames (11).

4. The spraying device for producing a quartz crucible according to claim 2, characterized in that: A through hole is provided at the center of the rotating disk (7), and the upper end of the nozzle (15) passes through the through holes on the inner side of the positioning ring (6) and the center of the rotating disk (7).

5. The spraying device for producing quartz crucible according to claim 1, characterized in that: The outer wall and lower side of the rotating disk (7) are equipped with multiple sets of balls (12).

6. The spraying device for producing quartz crucible according to claim 1, characterized in that: L-shaped mounting frames (23) are respectively installed on opposite sides of the workbench (1); an electric telescopic rod (24) is installed through the interior of the L-shaped mounting frame (23); and a V-shaped protective frame (25) is installed at the protruding end of the electric telescopic rod (24).

7. The spraying device for producing quartz crucible according to claim 6, characterized in that: The inner wall of the V-shaped protection frame (25) is equipped with multiple sets of ball bearings (26).

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