Gem end face grinding device

Abstract

The utility model discloses a gem end face grinding device which comprises a rack, and a concave cavity is formed in the upper end of the rack. The power source is connected with the rack; the grinding disc is arranged in the concave cavity and is connected with the free end of the power source; at least one group of pressing components are hinged with the upper end of the rack; the material carrying disc is used for picking up a template, and the material carrying disc is connected with the pressing assembly through an adjusting structure; according to the utility model, the template loaded with small-particle-size gem materials is matched and connected with the material loading disc into a whole, and downward force is applied to the template through the pressing assembly at the upper part, so that the end face of the gem on one side of the bottom of the template is tightly attached to the grinding disc; and the end faces of the gem particles are ground under the rotating action of the grinding disc. By the adoption of the mode, the grinding device is suitable for the small-particle-size and large-batch gem end face grinding procedure, the grinding effect and finished product consistency are good, and the grinding efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of gemstone processing technology, and specifically relates to a gemstone end face grinding device. Background Technology

[0002] In the gemstone processing process, the rough stone is first sliced, then the slices are cut into strips, the strips are further cut into granules, and finally they are ground and polished.

[0003] Fine gemstone raw materials are sieved and loaded in a matrix into a special sheet / plate mold. The mold is then placed in a grinding device to grind the gemstone end faces.

[0004] Gemstones refer to stones or minerals that, after grinding and polishing, meet the requirements for jewelry setting. These are precious minerals with beautiful colors, high hardness, and unaffected by atmospheric and chemical reactions. They can be used as instrument bearings, abrasives, and decorative items, among other things.

[0005] Chinese patent document with application number CN202323433038.1 discloses a polishing machine for processing sapphire crystals, including a base and a polishing disc that is driven to rotate by a motor and mounted on the base. A bracket is mounted on the base, and a robotic arm is mounted on the bracket. An end for adhering sapphire crystals is mounted on the robotic arm, and the end is connected to a water tank on the bracket through a pipe, so that liquid drips downward from the end, keeping the sapphire crystal polished under the wet liquid.

[0006] This gemstone crystal polishing machine adheres a single gemstone crystal to the end face of the end head and uses a robotic arm to change its angle so that multiple faces of the sapphire crystal come into contact with the polishing disc for polishing. However, the above-mentioned single gemstone polishing and grinding method is not suitable for large-scale gemstone grinding, especially for small-diameter gemstone materials. Gemstones loaded in the template require a special device to ensure the grinding effect. Utility Model Content

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A gemstone end face grinding apparatus, comprising:

[0009] The frame has a recessed cavity at the top;

[0010] A power source is connected to the frame;

[0011] A grinding disc is disposed within the cavity and connected to the free end of the power source;

[0012] At least one set of pressing components is hinged to the upper end of the frame;

[0013] A material tray for picking up templates, the material tray being connected to the pressing assembly via an adjustment structure;

[0014] The pressing assembly includes a hinge seat rotatably connected to the top of the frame and a swing rod connected to the hinge seat. The adjustment structure includes a sliding sleeve sleeved around the outer periphery of the swing rod, a plug rod penetrating the sliding sleeve and the swing rod, and fasteners. The material tray cooperates with the plug rod.

[0015] Furthermore, the material tray has an inverted T-shaped cross-section, and a blind hole is provided at the top of the material tray for the insertion rod to extend into.

[0016] Furthermore, the pressing assembly consists of two sets, which are connected by a connecting arm. The bottom of the connecting arm also has a rotating shaft that is connected to the frame.

[0017] Furthermore, the swing rod has an annular groove on its body.

[0018] Furthermore, a rope is tied to the annular groove, and the other end of the rope is connected to the counterweight.

[0019] Furthermore, the frame is provided with an elastic block that engages with the bottom of the swing arm.

[0020] Furthermore, a limiting seat is connected to the upper end of the frame, and the limiting seat has a limiting groove that conforms to the swing rod.

[0021] Furthermore, an elastic pad is provided on the surface of the limiting groove.

[0022] Compared with the prior art, this utility model has the following advantages:

[0023] A template loaded with small-diameter gemstone material is connected to a material carrier tray. A downward force is applied by the upper pressing component, causing the gemstone end face on the bottom side of the template to fit tightly against the grinding disc. Under the rotation of the grinding disc, the end face of the gemstone is ground. This method is suitable for grinding the end face of small-diameter gemstones in large batches, resulting in good consistency and high grinding efficiency.

[0024] The pressing component used has a simple structure and can provide downward pressure on the template and material under the weight of the mechanical parts themselves. Compared with other structures, it does not require an additional drive device, and has better economy and reliability.

[0025] The template and the material tray can slide upward along the swing arm axis under the action of the upper adjustment structure. Depending on the size of the template and the amount of material, the template can be moved radially on the upper surface of the grinding disc. Adjusting the position of the template to the center of the grinding disc can further improve the grinding effect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the overall structure of a specific embodiment of the present utility model;

[0027] Figure 2 This is a three-dimensional structural diagram of the pressing component in a specific embodiment of the present invention;

[0028] Figure 3 This is a top view of the limiting seat in a specific embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram illustrating the structure of the gemstones loaded in the template in a specific embodiment of this utility model;

[0030] The reference numerals in the accompanying drawings include:

[0031] Frame 1, cavity 10, power source 2, grinding disc 3, pressing assembly 4, hinge seat 40, swing rod 41, annular groove 410, rope 411, counterweight 412, connecting arm 42, rotating shaft 43, sliding sleeve 50, plug rod 51, fastener 52, material tray 6, blind hole 60, elastic block 7, limit seat 8, limit groove 80, template 9, gemstone 90. Detailed Implementation

[0032] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0033] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not 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, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0034] like Figure 1 - Figure 4 As shown, the present invention provides a gemstone end face grinding device, which includes a frame 1, a power source 2, a grinding disc 3, a material carrier 6, and at least one set of pressing components 4.

[0035] Among them, a cavity 10 is provided at the upper end of the frame 1;

[0036] Power source 2 is connected to frame 1;

[0037] The grinding disc 3 is set inside the cavity 10 and connected to the free end of the power source 2;

[0038] The pressing assembly 4 is hinged to the upper end of the frame 1;

[0039] The material tray 6 is used to pick up the template 9, and the material tray 6 is connected to the pressing assembly 4 through an adjustment structure;

[0040] The pressing assembly 4 includes a swing rod 41 of a hinge seat 40 rotatably connected to the top of the frame 1. The end of the swing rod 41 is a hinge joint, which is connected to the hinge seat 40. With this structure, the swing rod 41 can swing from a horizontal position to a vertical position.

[0041] The template 9, loaded with small-diameter gemstone 90 material, is connected to the material carrier plate 6. A downward force is applied by the upper pressing component 4, causing the gemstone 90 end face on the bottom side of the template 9 to fit tightly against the grinding disc 3. Under the rotation of the grinding disc 3, the end face of the gemstone 90 is ground. This method is suitable for grinding the end face of small-diameter, high-volume gemstone 90 materials, resulting in good consistency and high grinding efficiency.

[0042] The adjustment structure includes a sliding sleeve 50 fitted around the outer periphery of the swing rod 41, a connecting rod 51 penetrating the sliding sleeve 50 and the swing rod 41, and a fastener 52. The material tray 6 cooperates with the connecting rod 51. By tightening the fastener 52, such as a bolt, the sliding sleeve 50 and the connecting rod 51 can slide freely or be fixed on the swing rod 41.

[0043] The pressing component 4 used has a simple structure and can provide downward pressure on the template 9 and the material under the weight of the mechanical parts themselves. Compared with other structures, it does not require an additional drive device, and has better economy and reliability.

[0044] The material tray 6 has an inverted T-shaped cross section.

[0045] The template 9 and the material tray 6 can slide upward along the swing rod 41 under the action of the upper adjustment structure. Depending on the size of the template 9 and the amount of material, the template 9 can be moved radially on the upper surface of the grinding disc 3. Adjusting the position of the template 9 to the center of the grinding disc 3 can further improve the grinding effect.

[0046] In this embodiment, there are two sets of pressing components 4, which can increase the number and efficiency of grinding gemstones. The two sets of pressing components 4 are connected by a connecting arm 42, and the bottom of the connecting arm 42 also has a rotating shaft 43 connected to the frame 1. By setting the rotating shaft 43, the horizontal swing arc of the swing rod can be adjusted, so that the position of the material tray 6 in the cavity changes, which is beneficial to the implementation of grinding.

[0047] The end face of the material carrier tray 6 is smooth. When it comes into contact with the template 9, the air at the contact surface is expelled, forming a negative pressure adsorption. Alternatively, the end face of the material carrier tray 6 can be designed as a suction cup structure. This method facilitates the installation of the template 9.

[0048] In addition, since the vertical displacement of the material tray 6 and template 9 is negligible during the grinding process, the material tray 6 has a blind hole 60 at the top for the insertion rod 51 to extend into, which eliminates the need for bolt fixing and makes installation convenient.

[0049] In this implementation, it is also necessary to add an appropriate amount of grinding media, such as borax, during the grinding process.

[0050] In this embodiment, the swing rod 41 has an annular groove 410 on its body. A rope 411 is tied to the annular groove 410, and the other end of the rope 411 is connected to a counterweight 412. By replacing the counterweight 412 with different masses, different forces can be applied to the upper pressing assembly 4. The pressing assembly 4 forms a lever structure to apply pressure to the lower template 9.

[0051] An elastic block 7 is provided on the frame 1 to engage with the bottom of the swing arm 41. This elastic block 7 acts as a fulcrum for the lever. At the same time, the material can undergo plastic change to avoid hard contact with the swing arm 41.

[0052] Before or after use, the tail of the swing rod 41 can be manually lifted or lowered to allow the gemstone 90 material to detach from the cavity 10 or come into contact with the surface of the grinding disc 3.

[0053] A limiting seat 8 is also connected to the upper end of the frame 1. The limiting seat 8 has a limiting groove 80 that conforms to the shape of the swing rod 41. In order to prevent the swing rod 41 from shaking or deviating due to the friction of the grinding disc 3 during the grinding process, the limiting seat 8 is set. When the swing rod 41 is laid flat, the main body of the swing rod 41 is located in the limiting groove 80 in the limiting seat 8, which plays a positive role in the stability of the grinding structure.

[0054] In addition, an elastic pad (not shown in the figure) can be provided on the surface of the limiting groove 80. This arrangement can reduce friction noise and mechanical wear during the grinding process.

[0055] The aforementioned 90mm gemstone cuts and templates / molds are all existing technologies, such as... Figure 4As shown, the gemstone 90 material particles can be cylindrical or rectangular. For specific structures and connection methods, please refer to the technical solutions mentioned in the background art. The above structures are not within the protection scope of this application.

[0056] Unless otherwise specified, fixed connections can be riveting, welding, bolting, etc., while movable connections can be hinged, etc.

[0057] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A gemstone end face grinding device, characterized in that, include: The frame (1) has a cavity (10) at the upper end. The power source (2) is connected to the frame (1); The grinding disc (3) is disposed in the cavity (10) and connected to the free end of the power source (2); At least one set of pressing components (4) is hinged to the upper end of the frame (1); A material tray (6) is used to pick up the template (9), and the material tray (6) is connected to the pressing assembly (4) through an adjustment structure; The pressing assembly (4) includes a hinge (40) rotatably connected to the top of the frame (1), a swing rod (41) connected to the hinge (40), and an adjustment structure including a sliding sleeve (50) sleeved on the outer periphery of the swing rod (41), a plug rod (51) penetrating the sliding sleeve (50) and the swing rod (41), and a fastener (52). The material tray (6) cooperates with the plug rod (51).

2. The gemstone end face grinding device as described in claim 1, characterized in that: The material tray (6) has an inverted T-shaped cross section, and a blind hole (60) is provided at the top of the material tray (6) for the insertion rod (51) to extend into.

3. The gemstone end face grinding device as described in claim 1, characterized in that: The pressing assembly (4) consists of two sets, which are connected by a connecting arm (42). The bottom of the connecting arm (42) also has a rotating shaft (43) connected to the frame (1).

4. A gemstone end face grinding device as described in claim 1, 2, or 3, characterized in that: The swing rod (41) has an annular groove (410) on its body.

5. The gemstone end face grinding device as described in claim 4, characterized in that: A rope (411) is tied to the annular groove (410), and the other end of the rope (411) is connected to the counterweight (412).

6. A gemstone end face grinding apparatus as described in claim 1, 2, 3, or 5, characterized in that: The frame (1) is provided with an elastic block (7) that cooperates with the bottom of the swing rod (41).

7. The gemstone end face grinding device as described in claim 6, characterized in that: A limiting seat (8) is also connected to the upper end of the frame (1), and a limiting groove (80) adapted to the swing rod (41) is provided in the limiting seat (8).

8. The gemstone end face grinding device as described in claim 7, characterized in that: An elastic pad is provided on the surface of the limiting groove (80).

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