Energy-saving single crystal furnace for sapphire crystal preparation
By using a stirring rod and stirring blade structure in the sapphire crystal preparation process, the problem of uneven heating was solved, resulting in more efficient sapphire crystal production and improved product quality.
Patent Information
- Application Number
- CN202520286516.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing sapphire crystal manufacturing processes, uneven heating can easily lead to defects and metamorphic crystal formation, affecting production efficiency.
The system employs a stirring rod and stirring blade structure. A motor-driven pulley system rotates the stirring rod and stirring blade to tumble the sapphire crystal raw material inside the furnace core. Combined with an electric push rod, the insertion depth of the stirring rod is adjusted to ensure uniform heating.
This technology enables uniform heating of sapphire crystals, improving production efficiency and crystal quality, and avoiding defects and crystallization problems caused by uneven heating.
Smart Images

Figure CN223892927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sapphire technology, and more specifically, to an energy-saving single crystal furnace for sapphire crystal preparation. Background Technology
[0002] Sapphire is an important material in artificial crystals. Due to its excellent mechanical and optical properties, sapphire crystals have been widely used. Energy-saving single crystal furnaces are required in the preparation of sapphire crystals.
[0003] However, in the existing energy-saving single crystal furnace, the process involves first opening the furnace door, placing the raw material in, and then turning on the control cabinet. At this point, the coil inside the furnace is energized, and the current passes through the ring-shaped iron core, generating a strong eddy current. After reaching the melting point, the internal conditions are improved to produce high-quality sapphire. Since the crystal is deposited inside the furnace, the heating effect on the raw material is uneven. When the heating is uneven, various defects are easily generated in the crystal during the production process, affecting the quality. In severe cases, it can easily lead to metamorphic crystal formation or failure to grow single crystals, thereby reducing the production efficiency of the equipment. Therefore, we propose an energy-saving single crystal furnace for sapphire crystal preparation. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an energy-saving single crystal furnace for sapphire crystal preparation, which achieves the function of uniform heating.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving single crystal furnace for sapphire crystal preparation, comprising a base, a furnace body fixedly connected to the center of the top of the base, a furnace core fixedly installed at the bottom of the inner cavity of the furnace body, a housing fixedly connected to the right side of the top of the base, an electric push rod fixedly connected to the top of the inner cavity of the housing, a sliding plate fixedly connected to the bottom of the electric push rod, a fixing plate fixedly connected to the left side of the sliding plate extending to the outside of the housing, and a box fixedly connected to the top of the fixing plate, a motor fixedly installed to the right side of the top of the inner cavity of the box body, a rotating rod fixedly connected to the bottom of the motor, a first pulley sleeved on the surface of the rotating rod, a belt body sleeved on the surface of the first pulley, a second pulley sleeved on the left side of the inner cavity of the belt body, a stirring rod sleeved in the inner cavity of the second pulley, and a stirring blade fixedly connected to the bottom of the stirring rod extending to the outside of the box body, and cover plates attached to both sides of the top of the furnace body.
[0008] As a preferred embodiment, the base is fixedly connected to four fixed posts on all four sides, and the bottom of each fixed post is fixedly connected to an anti-slip pad.
[0009] The above technical solution, with its fixed column, facilitates the support of the equipment.
[0010] As a preferred embodiment, mounting blocks are fixedly connected to the top of both sides of the motor, and mounting bolts are provided on the surface of the mounting blocks.
[0011] The above technical solution, using mounting blocks and mounting bolts, facilitates the assembly and disassembly of the motor.
[0012] As a preferred embodiment, a bearing is fixedly connected to the top of the inner cavity of the box, and the top of the stirring rod is rotatably connected to the inner cavity of the bearing.
[0013] The above technical solution, through the use of bearings, improves the stability of the stirring rod's rotation.
[0014] As a preferred embodiment, a slide rail is fixedly connected to the right side of the inner cavity of the housing, and the right side of the sliding plate is slidably connected to the inner cavity of the slide rail.
[0015] The above technical solution improves the stability of the sliding plate by using a slide rail.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides an energy-saving single crystal furnace for sapphire crystal preparation, which has the following beneficial effects.
[0018] 1. This utility model uses a motor to easily drive the rotating rod to rotate, which in turn drives the first pulley to rotate. The rotation of the first pulley drives the belt body to rotate, which in turn drives the second pulley to rotate. The rotation of the second pulley drives the stirring rod and stirring blade to rotate, thereby stirring and tumbling the sapphire crystal raw material inside the furnace core. This avoids the reduction in crystal production quality due to uneven heating of the sapphire crystal, and greatly improves the efficiency of sapphire crystal production.
[0019] 2. This utility model uses an electric push rod to easily move the sliding plate, which in turn drives the fixed plate to move. The movement of the fixed plate pushes the stirring rod and stirring blade into the inner cavity of the furnace core. The insertion depth of the stirring rod can be adjusted according to the height of the sapphire crystal raw material, thereby improving the uniformity of heating of the sapphire crystal. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2This is a cross-sectional view of the box structure of this utility model;
[0022] Figure 3 This is a cross-sectional view of the shell structure of this utility model.
[0023] In the diagram: 1. Base; 2. Furnace body; 3. Furnace core; 4. Stirring blade; 5. Cover plate; 6. Stirring rod; 7. Box body; 8. Fixing plate; 9. Shell; 10. Fixing column; 11. Motor; 12. Rotating rod; 13. First pulley; 14. Belt body; 15. Second pulley; 16. Electric push rod; 17. Sliding plate; 18. Slide rail. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-3 This utility model discloses an energy-saving single crystal furnace for sapphire crystal preparation, comprising a base 1, a furnace body 2 fixedly connected to the center of the top of the base 1, a furnace core 3 fixedly installed at the bottom of the inner cavity of the furnace body 2, a housing 9 fixedly connected to the right side of the top of the base 1, an electric push rod 16 fixedly connected to the top of the inner cavity of the housing 9, a sliding plate 17 fixedly connected to the bottom of the electric push rod 16, a fixing plate 8 fixedly connected to the left side of the sliding plate 17 extending to the outside of the housing 9, and a box body 7 fixedly connected to the top of the fixing plate 8, a motor 11 fixedly installed to the right side of the top of the inner cavity of the box body 7, a rotating rod 12 fixedly connected to the bottom of the motor 11, a first pulley 13 sleeved on the surface of the rotating rod 12, a belt body 14 sleeved on the surface of the first pulley 13, a second pulley 15 sleeved on the left side of the inner cavity of the belt body 14, a stirring rod 6 sleeved in the inner cavity of the second pulley 15, and a stirring blade 4 fixedly connected to the bottom of the stirring rod 6 extending to the outside of the box body 7, and cover plates 5 attached to both sides of the top of the furnace body 2.
[0026] Through the above technical solution, the motor 11 drives the rotating rod 12 to rotate, which in turn drives the first pulley 13 to rotate. The rotation of the first pulley 13 drives the belt body 14 to rotate, which in turn drives the second pulley 15 to rotate. The rotation of the second pulley 15 drives the stirring rod 6 and the stirring blade 4 to rotate, thereby stirring and tumbling the sapphire crystal raw material inside the furnace core 3. This avoids the reduction in crystal production quality due to uneven heating of the sapphire crystal, and greatly improves the efficiency of sapphire crystal production.
[0027] Specifically, the base 1 has fixed posts 10 fixedly connected to all four sides of its bottom, and anti-slip pads are fixedly connected to the bottom of the fixed posts 10. Mounting blocks are fixedly connected to the top of both sides of the motor 11, and mounting bolts are provided on the surface of the mounting blocks. A bearing is fixedly connected to the top of the inner cavity of the housing 7, and the top of the stirring rod 6 is rotatably connected to the inner cavity of the bearing. A slide rail 18 is fixedly connected to the right side of the inner cavity of the housing 9, and the right side of the sliding plate 17 is slidably connected to the inner cavity of the slide rail 18. The mounting blocks and mounting bolts facilitate the disassembly and assembly of the motor 11. The bearing improves the stability of the rotation of the stirring rod 6, and the slide rail 18 improves the stability of the sliding of the sliding plate 17.
[0028] The working principle of this utility model is as follows: First, the user removes the cover plate 5 from the surface of the furnace body 2. Then, the user pours the sapphire crystal raw material into the inner cavity of the furnace core 3. Next, the cover plate 5 is placed on top of the furnace body 2 to seal it. Then, the user starts the furnace body 2 via the controller to begin heating the raw material inside the furnace core 3. To ensure the uniformity of heating of the raw material inside the furnace core 3, the user starts the electric push rod 16 via the external controller. The electric push rod 16 facilitates the movement of the sliding plate 17, which in turn moves the fixed plate 8. The movement of the fixed plate 8 pushes the stirring rod 6 and the stirring blade 4 into the inner cavity of the furnace core 3. The process can be adjusted according to the sapphire crystal content. The height of the sapphire crystal raw material is adjusted by regulating the insertion depth of the stirring rod 6, thereby improving the uniformity of heating of the sapphire crystal. Then, the user starts the motor 11 through an external controller. The motor 11 drives the rotating rod 12 to rotate, which in turn drives the first pulley 13 to rotate. The rotation of the first pulley 13 drives the belt body 14 to rotate, which in turn drives the second pulley 15 to rotate. The rotation of the second pulley 15 drives the stirring rod 6 and the stirring blade 4 to rotate, thereby stirring and tumbling the sapphire crystal raw material inside the furnace core 3, greatly improving the uniformity of heating of the sapphire crystal raw material and thus improving the efficiency of crystal production.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. An energy-saving single crystal furnace for sapphire crystal preparation, comprising a base (1), characterized in that: A furnace body (2) is fixedly connected to the center of the top of the base (1). A furnace core (3) is fixedly installed at the bottom of the inner cavity of the furnace body (2). A housing (9) is fixedly connected to the right side of the top of the base (1). An electric push rod (16) is fixedly connected to the top of the inner cavity of the housing (9). A sliding plate (17) is fixedly connected to the bottom of the electric push rod (16). A fixing plate (8) is fixedly connected to the left side of the sliding plate (17) extending to the outside of the housing (9). A box (7) is fixedly connected to the top of the fixing plate (8). A box (7) is fixedly connected to the right side of the top of the inner cavity of the box (7). A motor (11) is fixedly installed. A rotating rod (12) is fixedly connected to the bottom of the motor (11). A first pulley (13) is fitted on the surface of the rotating rod (12). A belt body (14) is fitted on the surface of the first pulley (13). A second pulley (15) is fitted on the left side of the inner cavity of the belt body (14). A stirring rod (6) is fitted on the inner cavity of the second pulley (15). A stirring blade (4) is fixedly connected to the bottom of the stirring rod (6) through to the outside of the box (7). Cover plates (5) are attached to both sides of the top of the furnace body (2).
2. The energy-saving single crystal furnace for sapphire crystal preparation according to claim 1, characterized in that: The base (1) is fixedly connected to four sides of the bottom, and the bottom of the fixed column (10) is fixedly connected to an anti-slip pad.
3. The energy-saving single crystal furnace for sapphire crystal preparation according to claim 1, characterized in that: Mounting blocks are fixedly connected to the top of both sides of the motor (11), and mounting bolts are provided on the surface of the mounting blocks.
4. The energy-saving single crystal furnace for sapphire crystal preparation according to claim 1, characterized in that: A bearing is fixedly connected to the top of the inner cavity of the box (7), and the top of the stirring rod (6) is rotatably connected to the inner cavity of the bearing.
5. The energy-saving single crystal furnace for sapphire crystal preparation according to claim 1, characterized in that: A slide rail (18) is fixedly connected to the right side of the inner cavity of the housing (9), and the right side of the sliding plate (17) is slidably connected to the inner cavity of the slide rail (18).