Crucible supporting platform structure for gem growth
By setting hollow holes and boss structures on the support plate of the support platform assembly, the problem of heat loss at the bottom of the crucible is solved, improving the quality and safety of gemstone processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CRYSTAL SAPPHIRE TECH DEV CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-05
AI Technical Summary
In the current gemstone growth process, the bottom of the crucible is in complete contact with the support platform, resulting in severe heat loss and a large temperature difference between the top and bottom of the crucible, which affects the quality of gemstone processing.
Multiple spaced perforated holes are provided on the support plate of the support platform assembly. The perforated holes are distributed in an array to reduce the contact area between the bottom of the crucible and the support plate. A boss is provided under the support plate to improve stability.
By reducing heat loss and lowering the temperature difference within the crucible, the quality of gemstone processing is improved, the stability of the support platform is enhanced, melting and breakage are prevented, and safety is increased.
Smart Images

Figure CN224199529U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gemstone processing technology, specifically relating to a crucible support platform structure for gemstone growth. Background Technology
[0002] In the production of synthetic sapphire, the temperature inside the heater used for sapphire growth reaches over 2000℃. This temperature environment directly affects the quality of the finished sapphire. Due to the high temperature inside the heater, a high-temperature resistant material is needed to support the crucible containing the raw materials, elevating it to a certain height so that the heater can heat the crucible evenly from the outside. The bottom of the support platform is connected to an external water-cooling device to prevent the support platform from melting due to excessive temperature. However, existing support platforms are usually complete platform structures, with the bottom of the crucible in complete contact with the surface of the support platform. This causes heat loss from the bottom of the crucible, resulting in an excessive temperature difference between the top and bottom of the crucible, which seriously affects the processing quality of the gemstone. Utility Model Content
[0003] The purpose of this invention is to provide a crucible support platform structure for gemstone growth. Multiple spaced perforated holes are provided on the support plate of the support platform assembly. The perforated holes are evenly distributed in an array on the support plate, which can reduce the contact area between the bottom of the crucible and the support plate, thereby reducing heat loss from the bottom of the crucible and reducing the temperature difference between the top and bottom of the crucible, so as to improve the processing quality of the gemstone.
[0004] This utility model is achieved through the following technical solution:
[0005] A crucible support platform structure for gemstone growth, wherein the support platform assembly is used to support the crucible, the support platform assembly includes a plug rod and a support plate, one end of the plug rod is plugged into a reflective screen, and the other end of the plug rod is connected to the geometric center of the support plate; the support plate is provided with multiple hollow holes.
[0006] Preferably, the support plate has three hollow holes, and the included angle between the three hollow holes is the same.
[0007] Preferably, the perforated hole has a fan-shaped structure, and the outer side of the perforated hole is longer than the inner side.
[0008] Preferably, the distance from the edge of the support plate to the hollow hole is 0.8cm-1cm.
[0009] Preferably, a boss is provided at the geometric center position below the support plate, and the boss is connected to the plug rod.
[0010] Preferably, the radius of the boss is smaller than the distance from the inner edge of the hollow hole to the geometric center of the support plate.
[0011] Preferably, the thickness of the boss is 0.8cm-1cm.
[0012] Preferably, the thickness of the support plate is 1.2cm-1.5cm.
[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0014] 1) In this utility model, multiple spaced perforated holes are provided on the support plate of the support platform assembly. The perforated holes are evenly distributed in an array on the support plate, which can reduce the contact area between the bottom of the crucible and the support plate, thereby reducing the heat loss at the bottom of the crucible and reducing the temperature difference between the top and bottom of the crucible, so as to improve the processing quality of the gemstone.
[0015] 2) In this utility model, a 1cm thick boss is provided between the support plate and the plug rod. The end of the plug rod is connected to the boss, which can improve the stability of the support plate and prevent the plug rod end from melting and breaking between the support plate, thus improving the safety of gemstone processing operations. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of the crucible support platform in this utility model.
[0018] Figure 2 This is a schematic diagram of the support platform assembly in this utility model.
[0019] Figure 3 This is a top view of the support plate structure in this utility model.
[0020] Wherein: 1-electrode plate, 11-mounting groove, 12-plug part, 2-support plate, 21-hollow hole, 3-plug rod, 4-protrusion, 5-reflective screen. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0022] Example 1:
[0023] A crucible support platform structure for gemstone growth includes an electrode plate 1, a reflector screen 5, and a support platform assembly. The electrode plate 1 has a mounting groove 11 with an insertion part 12 at its edge. The bottom electrode of the heater is inserted into the insertion part 12 for heating the crucible. The reflector screen 5 is positioned at the center of the mounting groove 11 and connected to its bottom. The support platform assembly is inserted into and connected to the reflector screen 5, supporting the crucible. The support platform assembly includes an insertion rod 3 and a support plate 2, both made of molybdenum metal. One end of the insertion rod 3 is inserted into the reflector screen 5 and passes through the bottom of the mounting groove 11, where it is fixed by the electrode plate 1. The insertion rod 3 is typically connected to an external water-cooling device. The external water-cooling device is used to cool the support platform assembly. The low temperature is conducted to the support plate 2 along the plug rod 3, preventing the support platform assembly from melting due to high temperature and improving the service life of the support platform assembly. The other end of the plug rod 3 is connected to the geometric center of the support plate 2. The support plate 2 is provided with three hollow holes 21. The included angle between the three hollow holes 21 is the same. The hollow holes 21 have a fan-shaped structure, and the outer side length is longer than the inner side length. The distance from the edge of the support plate 2 to the outer side length of the hollow holes 21 is 0.8cm. The three hollow holes 21 can reduce the contact area between the bottom of the crucible and the support plate 2, thereby reducing the heat loss at the bottom of the crucible and reducing the temperature difference between the top and bottom of the crucible, so as to improve the processing quality of the gemstone.
[0024] Example 2:
[0025] This embodiment, based on the above embodiment, further adds a boss 4. A boss 4 is located at the geometric center below the support plate 2. The boss 4 is also made of molybdenum metal and has a disc-shaped structure. The boss 4 is connected to the plug rod 3. The radius of the boss 4 is smaller than the distance from the inner edge of the hollow hole 21 to the geometric center of the support plate 2. When viewed from above the support plate 2, the boss 4 cannot be seen through the hollow hole 21. The thickness of the boss 4 is preferably 1 cm, and the thickness of the support plate 2 is preferably 1.4 cm. The other parts of this embodiment are the same as those in the above embodiment and will not be repeated here.
[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A crucible support platform structure for gemstone growth, characterized in that, The device includes an electrode plate, a reflective screen, and a support platform assembly. The electrode plate has a mounting groove, and the reflective screen is disposed in the mounting groove and connected to the bottom of the mounting groove. The support platform assembly is used to support the crucible and includes a plug-in rod and a support plate. One end of the plug-in rod is plugged into the reflective screen, and the other end of the plug-in rod is connected to the geometric center of the support plate. The support plate has multiple hollow holes.
2. The crucible support platform structure for gemstone growth as described in claim 1, characterized in that, The support plate has three hollow holes, and the included angle between the three hollow holes is the same.
3. The crucible support platform structure for gemstone growth as described in claim 2, characterized in that, The perforated hole has a fan-shaped structure, and the outer side of the perforated hole is longer than the inner side.
4. The crucible support platform structure for gemstone growth as described in claim 3, characterized in that, The distance from the edge of the support plate to the hollow hole is 0.8cm-1cm.
5. The crucible support platform structure for gemstone growth as described in claim 3, characterized in that, A boss is provided at the geometric center of the support plate, and the boss is connected to the plug rod.
6. The crucible support platform structure for gemstone growth as described in claim 5, characterized in that, The radius of the boss is smaller than the distance from the inner edge of the hollow hole to the geometric center of the support plate.
7. The crucible support platform structure for gemstone growth as described in claim 5, characterized in that, The thickness of the boss is 0.8cm-1cm.
8. The crucible support platform structure for gemstone growth as described in claim 1, characterized in that, The thickness of the support plate is 1.2cm-1.5cm.