A material coarse grinding device
By designing the material clamping assembly, the inconsistency problem caused by manual operation in the rough grinding of gemstone material edges was solved, achieving improved stability and consistency, and enhancing the grinding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SHUZHOU TECHNOLOGY CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-09
Smart Images

Figure CN224334111U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gemstone processing technology, specifically relating to a material coarse grinding device. Background Technology
[0002] In the gemstone processing process, the rough stone is first sliced, then the slices are cut into strips, and the strips are further cut into granules. The resulting granules are rectangular, and the edges need to be coarsely ground, finely ground, and the end faces are then polished.
[0003] Chinese patent document with application number CN201720700192.6 discloses a dust-removing sapphire coarse and fine grinding integrated machine, including a grinding part and a water storage tank; a motor is arranged at the center of the bottom end of the grinding part; a first rotating shaft is arranged at the center of the upper end of the motor; a large gear is arranged at the center of the first rotating shaft; a support rod is vertically fixed to the left side of the bottom end of the grinding part; a second rotating shaft is arranged above the support rod; small gears are fixed to the upper and lower ends of the second rotating shaft.
[0004] As the applicant further investigated, it was discovered that in the existing technical solution for rough grinding the edges of gemstone materials, the pressure plate is manually picked up and pressure is applied to the top of multiple materials arranged sequentially between two rotating grinding rods so that the gemstone materials can be ground by the two rotating grinding rods. This method requires a high level of experience from the operator. Because it is a manual operation, the pressure plate may be tilted or warped, which may cause the force applied to each material by the pressure plate to be inconsistent, resulting in inconsistent rough grinding quality of the materials. Utility Model Content
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A material coarse grinding device, comprising:
[0007] frame;
[0008] The first rotating roller assembly has a first grinding rod;
[0009] The second roller assembly has a second grinding rod arranged parallel to the first grinding rod, and there is a gap between the first grinding rod and the second grinding rod for placing gemstone material.
[0010] A power source, connected to the frame, is used to force the first roller assembly and the second roller assembly to operate, so that the first grinding rod and the second grinding rod rotate in opposite directions;
[0011] The pressing assembly is connected to the frame. The pressing assembly includes an upper pressing plate extending along the length direction of the first grinding bar, a longitudinal adjustment mechanism, and a transverse adjustment mechanism for connecting the upper pressing plate and the longitudinal adjustment mechanism.
[0012] Furthermore, the upper pressure plate has a downwardly extending limiting wing at its edge.
[0013] Furthermore, the upper end of the upper pressure plate is provided with a pressing head connected to the lateral adjustment mechanism, and the pressing head is connected to the top of the upper pressure plate through several connecting columns.
[0014] Furthermore, both the longitudinal adjustment mechanism and the transverse adjustment mechanism include a base plate, a screw rotatably connected to the base plate, a movable block sleeved on the screw, guide rails distributed on both sides of the movable block and connected to the base, and a connecting plate disposed on the outside of the guide rails and connected to the movable block.
[0015] Furthermore, the inner side of the connecting plate is also connected to a guide block that cooperates with the guide rail, and the guide block and the guide rail have trapezoidal cross sections.
[0016] Furthermore, it also includes a knob, which is connected to the end of the screw.
[0017] Furthermore, the diameter of the first grinding rod is larger than the diameter of the second grinding rod.
[0018] Furthermore, the power source includes a servo motor and a pulley. The power source drives the first roller assembly and the first roller assembly to operate through the cooperation of the belt and the pulley.
[0019] Compared with the prior art, this utility model has the following advantages:
[0020] By using a pressure assembly to replace manual control of the upper pressure plate, the upper pressure plate maintains good stability when acting on the material. It is not easy for the pressure of some materials to change due to shaking, which would weaken the grinding effect of some materials by the first and second grinding rods and cause poor consistency.
[0021] After the material is stacked horizontally between the first and second grinding rods, the upper pressure plate is driven to approach and act on the top of the material by the longitudinal adjustment mechanism in the pressing assembly, which prepares for coarse grinding. During the coarse grinding process, the upper pressure plate can be finely adjusted longitudinally by the same longitudinal adjustment mechanism. The material can be acted on multiple times and gradually according to the needs of the grinding process, so that its edge grinding meets the process requirements. This method is more reliable than traditional manual operation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram illustrating the overall structure of a specific embodiment of the present utility model;
[0023] Figure 2 This is a three-dimensional structural diagram of the pressing assembly in a specific embodiment of the present invention;
[0024] Figure 3 This is a schematic diagram illustrating the main structure of the pressing assembly in a specific embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram illustrating the exploded structure of the pressing assembly in a specific embodiment of the present invention;
[0026] The reference numerals in the accompanying drawings include:
[0027] Frame 1, First roller assembly 2, First grinding rod 20, Second roller assembly 3, Second grinding rod 30, Pressing assembly 4, Upper pressure plate 40, Limiting wing 400, Pressing head 41, Connecting column 410, Longitudinal adjustment mechanism 42, Lateral adjustment mechanism 43, Base plate 440, Screw 441, Knob 442, Moving block 443, Guide rail 444, Connecting plate 445, Guide block 446, Servo motor 50, Pulley 51, Belt 52, Gemstone material 6. Detailed Implementation
[0028] 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 in conjunction with the accompanying drawings and embodiments.
[0029] 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.
[0030] like Figure 1 - Figure 4 As shown, the present invention provides a material coarse grinding device, which includes a frame 1, a first rotating roller assembly 2, a second rotating roller assembly 3, a power source, and a pressing assembly 4.
[0031] The first roller assembly 2 includes a first grinding rod 20;
[0032] The second roller assembly 3 has a second grinding rod 30 arranged parallel to the first grinding rod 20, and there is a gap between the first grinding rod 20 and the second grinding rod 30 for placing the gemstone material 6.
[0033] The power source is connected to the frame 1 to force the first roller assembly 2 and the second roller assembly 3 to operate, so that the first grinding rod 20 and the second grinding rod 30 rotate in opposite directions;
[0034] The power source includes a servo motor 50 and a pulley 51. The power source drives the first roller assembly 2 to operate through the cooperation of the belt 52 and the pulley 51.
[0035] The use of a pressing assembly 4 to replace manual control of the upper pressing plate 40 ensures that the upper pressing plate 40 maintains good stability when acting on the material. It is less likely that the pressure of some materials will change due to shaking, which would weaken the grinding effect of some materials by the first grinding rod 20 and the second grinding rod 30 and cause poor consistency.
[0036] The pressing assembly 4 is located on the upper part of the first roller assembly 2 and is connected to the frame 1. The pressing assembly 4 specifically includes an upper pressing plate 40 extending along the length direction of the first grinding rod 20, a longitudinal adjustment mechanism 42, and a transverse adjustment mechanism 43 for connecting the upper pressing plate 40 and the longitudinal adjustment mechanism 42.
[0037] After the material is stacked horizontally between the first grinding rod 20 and the second grinding rod 30, the upper pressure plate 40 is driven to approach and act on the top of the material by the longitudinal adjustment mechanism 42 in the pressing assembly 4, which prepares for coarse grinding. During the coarse grinding process, the upper pressure plate 40 can be finely adjusted longitudinally by the same longitudinal adjustment mechanism. The material can be acted on multiple times and gradually according to the grinding process requirements, so that its edge grinding meets the process requirements. This method is more reliable than traditional manual operation.
[0038] In addition, the upper pressure plate 40 has a downwardly extending limiting wing 400 at its edge.
[0039] The limiting wing 400 can prevent materials from tilting excessively and falling off during processing.
[0040] The upper end of the upper pressure plate 40 is provided with a pressing head 41 connected to the horizontal adjustment mechanism 43. The pressing head 41 is connected to the top of the upper pressure plate 40 through several connecting columns 410.
[0041] By setting the pressure head 41, the upper pressure plate 40 of appropriate length can be reasonably designed and installed according to the actual amount of material to be processed. By increasing or decreasing the number of connecting columns 410 accordingly, the upper pressure plate 40 can be driven evenly, avoiding the possibility of uneven force and tilting during contact with the material.
[0042] Specifically, the longitudinal adjustment mechanism 42 and the transverse adjustment mechanism 43 in the above technical solution have the same structural principle, both including a base plate 440, a screw 441 rotatably connected to the base plate 440, a moving block 443 sleeved on the screw 441, guide rails 444 distributed on both sides of the moving block 443 and connected to the base, and a connecting plate 445 disposed on the outside of the guide rails 444 and connected to the moving block 443. The base plate 440 is connected to the frame 1.
[0043] A vertically mounted support member (not shown in the figure) is connected to the upper end of the frame 1, and the base plate 440 is connected to the support member with bolts to install and fix the entire pressing assembly 4.
[0044] By manually turning the knob 442 connected to the end of the screw 441, the connecting plate 445 and the moving block 443 are forced to slide in the direction set by the guide rail 444.
[0045] The other side of the connecting plate 445 is connected to the base plate 440 in the lateral adjustment mechanism 43. The adjustment mechanism and the lateral adjustment mechanism 43 combine to form two degrees of freedom in different directions. The pressing assembly 4 can adjust the upper pressing plate 40 laterally. After the material has been processed for a certain period of time, a push rod parallel to the first grinding rod 20 and the second grinding rod 30 is inserted into the side of the material. Under the action of the push rod, the material is pushed laterally away from the processing gap between the first grinding rod 20 and the second grinding rod 30. This pushing process is relatively slow. Through the lateral adjustment mechanism 43, the upper pressing plate 40 can be forced to move laterally with the material. In this way, the pressure on the material during movement can be maintained, which can ensure the grinding quality.
[0046] The connecting plate 445 is also connected to a guide block 446 that cooperates with the guide rail 444. The guide block 446 and the guide rail 444 have trapezoidal cross sections. With this arrangement, the guide blocks 446 and the guide rail 444 on both sides are combined to form a connection similar to a mortise and tenon structure. This connection allows for smoother adjustments in the horizontal or vertical direction.
[0047] Specifically, the diameter of the first grinding rod 20 is larger than the diameter of the second grinding rod 30.
[0048] In addition, casters can be installed at the bottom of the frame 1 to facilitate the movement of the entire equipment and reduce handling costs.
[0049] Unless otherwise specified, fixed connections can be riveting, welding, bolting, etc., while movable connections can be hinged, etc.
[0050] 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 material coarse grinding device, characterized in that, include: Rack (1); The first roller assembly (2) has a first grinding rod (20); The second roller assembly (3) has a second grinding rod (30) arranged parallel to the first grinding rod (20), and there is a gap between the first grinding rod (20) and the second grinding rod (30) for placing the gemstone material (6); A power source, connected to the frame (1), is used to force the first roller assembly (2) and the second roller assembly (3) to operate so that the first grinding rod (20) and the second grinding rod (30) rotate toward each other; The pressing assembly (4) is connected to the frame (1). The pressing assembly (4) includes an upper pressing plate (40) extending along the length direction of the first grinding rod (20), a longitudinal adjustment mechanism (42), and a transverse adjustment mechanism (43) for connecting the upper pressing plate (40) and the longitudinal adjustment mechanism (42).
2. The material coarse grinding equipment as described in claim 1, characterized in that: The upper pressure plate (40) has a downwardly extending limiting wing (400) at its edge.
3. The material coarse grinding equipment as described in claim 1, characterized in that: The upper end of the upper pressure plate (40) is provided with a pressing head (41) connected to the horizontal adjustment mechanism (43), and the pressing head (41) is connected to the top of the upper pressure plate (40) through several connecting columns (410).
4. A material coarse grinding device as described in claim 1, 2, or 3, characterized in that: The longitudinal adjustment mechanism (42) and the transverse adjustment mechanism (43) both include a base plate (440), a screw (441) rotatably connected to the base plate (440), a moving block (443) sleeved on the screw (441), a guide rail (444) distributed on both sides of the moving block (443) and connected to the base, and a connecting plate (445) disposed outside the guide rail (444) and connected to the moving block (443).
5. The material coarse grinding equipment as described in claim 4, characterized in that: The inner side of the connecting plate (445) is also connected to a guide block (446) that cooperates with the guide rail (444). The cross-sections of the guide block (446) and the guide rail (444) are trapezoidal.
6. The material coarse grinding equipment as described in claim 4, characterized in that: It also includes a knob (442) that is connected to the end of the screw (441).
7. A material coarse grinding device as described in claim 1, 2, 3, 5, or 6, characterized in that: The diameter of the first grinding rod (20) is larger than the diameter of the second grinding rod (30).
8. The material coarse grinding equipment as described in claim 7, characterized in that: The power source includes a servo motor (50) and a pulley (51). The power source drives the first roller assembly (2) to operate through the cooperation of the belt (52) and the pulley (51).