Gold jewelry semi-automatic polishing machine
The gold jewelry polishing machine, equipped with a high-performance motor and a precise adjustment mechanism, solves the problems of low efficiency and unstable quality of traditional equipment, achieving efficient and precise polishing results and adapting to diverse jewelry processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WU HAN XIN JIN SHOU SHI ZHI ZAO GONG SI
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional gold jewelry polishing equipment suffers from low production efficiency, difficulty in guaranteeing polishing quality, inability to adapt to processing needs of different shapes and specifications, and is prone to uneven polishing and surface scratches.
It adopts a high-performance three-phase asynchronous motor drive mechanism, combined with a high-precision adjustment mechanism and a high-strength alloy steel transmission shaft, and is equipped with high-precision pneumatic components and servo motors to achieve precise control of the polishing of gold jewelry.
It improves processing efficiency and calendering quality, ensures the stability and consistency of the calendering process, and adapts to the processing needs of gold jewelry of different specifications and shapes.
Smart Images

Figure CN224474136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calendering machine technology, and in particular to a semi-automatic calendering machine for gold jewelry. Background Technology
[0002] In the field of gold jewelry processing, polishing is a crucial process for enhancing the smoothness and aesthetics of the jewelry surface. As consumers' demands for the quality of gold jewelry continue to rise, higher standards are being set for the precision, efficiency, and stability of the polishing process.
[0003] Traditional gold jewelry polishing methods mostly rely on manual operation or simple mechanical assistance. Manual polishing depends on the experience and skills of workers, resulting in low production efficiency and inconsistent polishing quality, making it difficult to meet the needs of large-scale industrial production. Early simple mechanical polishing equipment had inadequate structural design, lacking precise pressure and position adjustment mechanisms, and could not effectively adapt to the processing of gold jewelry of different shapes and sizes, easily leading to uneven polishing and surface scratches. Utility Model Content
[0004] To address the above problems, this utility model provides a semi-automatic gold jewelry polishing machine.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0006] A semi-automatic gold jewelry polishing machine includes a first plate and a second plate arranged in parallel. A driving mechanism is provided between the first plate and the second plate, and an adjustment mechanism is also provided between the first plate and the second plate. The gold placed between the first plate and the second plate is processed by the driving mechanism and the adjustment mechanism.
[0007] Preferably, the driving mechanism includes a first motor fixedly mounted on the upper end of the second plate, and a transmission shaft is fixedly mounted on the output end of the first motor.
[0008] Preferably, the drive shaft is rotatably mounted between the first plate and the second plate, and a first roller is fixedly mounted on the outside of the drive shaft.
[0009] Preferably, the adjustment mechanism includes a first cylinder and a second cylinder respectively fixedly installed on the first plate and the second plate. The output ends of the first cylinder and the second cylinder are each equipped with a rod. The ends of the two rods are rotatably mounted on a shaft. A second roller is rotatably mounted on the outside of the shaft.
[0010] Preferably, the length directions of the first roller and the second roller are aligned, and the length directions of both rods are perpendicular to the length direction of the second roller.
[0011] Preferably, a slide rod is fixedly installed between the first plate and the second plate, and a platform is slidably installed on the outside of the slide rod.
[0012] Preferably, a second motor is also fixedly installed on the first plate, a screw is rotatably installed between the first plate and the second plate, the output end of the second motor is fixedly connected to one end of the screw, and a nut is installed on the outside of the screw via a helical drive, and the nut is fixedly installed inside the platform.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. It adopts a high-performance three-phase asynchronous motor and a high-precision coupling, combined with a high-strength alloy steel drive shaft and deep groove ball bearing support, to ensure stable power transmission of the drive mechanism, reduce vibration and energy loss, provide continuous and strong power for the calendering process, and improve processing efficiency.
[0015] 2. The adjustment mechanism is driven by high-precision pneumatic components and, in conjunction with specially designed rods, shafts and rollers, can flexibly adjust the calendering pressure and the position of the second roller, accurately adapting to gold jewelry of different specifications and shapes, thereby improving calendering quality and product qualification rate.
[0016] 3. The stage achieves smooth sliding with the help of linear optical axis slide rods and linear bearings. Combined with a high-precision trapezoidal screw transmission system driven by a servo motor, it can accurately control the position of gold jewelry during the polishing process, ensuring the consistency and accuracy of the processing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is the front view of the present invention;
[0019] Figure 3 This is a top view of the present invention;
[0020] In the figure: 1 First plate, 2 Second plate, 3 First roller, 4 First motor, 5 First cylinder, 6 Second cylinder, 7 Shaft, 8 Second roller, 9 Second motor, 10 Screw, 11 Platform. Detailed Implementation
[0021] 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.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying 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, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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.
[0024] Reference Figure 1-3 A semi-automatic gold jewelry polishing machine comprises a basic frame consisting of a first plate 1 and a second plate 2 arranged in parallel, providing a stable support platform for the machine's operation through a stable spatial structure. The drive mechanism and adjustment mechanism located between the first plate 1 and the second plate 2 are the core components for polishing the gold jewelry placed within them.
[0025] The drive mechanism, which provides the power for polishing gold jewelry, has a core component: a first motor 4 fixedly mounted on the upper part of the second plate 2. The first motor 4 is a high-performance three-phase asynchronous motor, characterized by high torque and low noise, providing stable and powerful power output for the polishing process. The output end of the first motor 4 is fixedly connected to the transmission shaft via a high-precision coupling. This connection method not only ensures the stability of power transmission but also effectively reduces vibration and energy loss caused by transmission.
[0026] The drive shaft is made of high-strength alloy steel and undergoes a precise heat treatment process, giving it excellent wear resistance and fatigue strength. The drive shaft is rotatably mounted between the first plate 1 and the second plate 2, supported by deep groove ball bearings at both ends. The bearings are installed with an interference fit to ensure the stability of the drive shaft during high-speed rotation. A first roller 3 is fixedly mounted to the outside of the drive shaft using a heat-fitting process. The surface of the first roller 3 undergoes a special mirror finish, achieving a roughness of less than Ra0.05μm, which effectively improves the polishing quality of gold jewelry. The first roller 3 is made of hard alloy material, possessing extremely high hardness and wear resistance, maintaining a stable polishing effect during long-term use.
[0027] The adjustment mechanism is designed to achieve precise control over the pressure and position of the gold jewelry polishing process. It mainly consists of a first cylinder 5 and a second cylinder 6, respectively fixedly mounted on the first plate 1 and the second plate 2. Both cylinders 5 and 6 utilize high-precision pneumatic components, featuring fast response and high control accuracy. High-strength rods are installed at the output ends of both cylinders. These rods are hollow, ensuring strength while reducing overall weight and improving the equipment's operating efficiency.
[0028] The ends of the two rods are rotatably mounted with shaft 7 via high-precision spherical bearings. Shaft 7 is made of alloy steel with a hard chrome-plated surface, enhancing its wear resistance and corrosion resistance. A second roller 8 is rotatably mounted on the outside of shaft 7. The second roller 8 is also made of hard alloy with a specially textured surface, allowing for full contact with the gold jewelry surface during the polishing process and improving the polishing effect. The length directions of the first roller 3 and the second roller 8 are aligned, matching the processing direction of the gold jewelry. The length directions of the two rods are perpendicular to the length direction of the second roller 8. This layout allows the adjustment mechanism to flexibly adjust the position and pressure of the second roller 8 to adapt to the processing needs of gold jewelry of different sizes and shapes.
[0029] To achieve precise positioning and stable transport of gold jewelry during the polishing process, a sliding rod is fixedly installed between the first plate 1 and the second plate 2. The sliding rod uses a linear optical axis, and its surface is hardened to a hardness of HRC60 or higher, ensuring good wear resistance and linear motion accuracy. A stage 11 is slidably mounted on the outside of the sliding rod. The stage 11 is made of high-strength aluminum alloy and precision-machined, with a surface flatness error controlled within ±0.01mm. The stage 11 and the sliding rod are connected by a linear bearing. Linear bearings have a low coefficient of friction and high motion accuracy, ensuring smooth sliding of the stage 11 on the sliding rod.
[0030] In addition, a second motor 9 is fixedly mounted on the first plate 1. The second motor 9 is a servo motor with high-precision position control and speed adjustment functions. A screw 10 is rotatably mounted between the first plate 1 and the second plate 2. The screw 10 is a high-precision trapezoidal lead screw with a pitch error controlled within ±0.005mm. The output end of the second motor 9 is connected to one end of the screw 10 via a synchronous belt drive. This transmission method has the advantages of high transmission efficiency and low noise. A nut is installed on the external helical drive of the screw 10. The nut is fixedly installed inside the stage 11. The second motor 9 drives the screw 10 to rotate, realizing the precise linear movement of the stage 11 on the slide rod, thereby precisely controlling the position of the gold jewelry during the polishing process.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A semi-automatic gold jewelry polishing machine, characterized in that, It includes a first plate (1) and a second plate (2), which are arranged in parallel. A driving mechanism is provided between the first plate (1) and the second plate (2), and an adjustment mechanism is also provided between the first plate (1) and the second plate (2). The gold placed between the first plate (1) and the second plate (2) is processed by the driving mechanism and the adjustment mechanism.
2. The semi-automatic gold jewelry polishing machine according to claim 1, characterized in that, The drive mechanism includes a first motor (4) fixedly installed on the upper end of the second plate (2), and a transmission shaft is fixedly installed on the output end of the first motor (4).
3. The semi-automatic gold jewelry polishing machine according to claim 2, characterized in that, The drive shaft is rotatably installed between the first plate (1) and the second plate (2), and a first roller (3) is fixedly installed on the outside of the drive shaft.
4. The semi-automatic gold jewelry polishing machine according to claim 3, characterized in that, The adjustment mechanism includes a first cylinder (5) and a second cylinder (6) respectively fixedly installed on the first plate (1) and the second plate (2). The output ends of the first cylinder (5) and the second cylinder (6) are each equipped with a rod. The ends of the two rods are rotatably mounted on a shaft (7). A second roller (8) is rotatably mounted on the outside of the shaft (7).
5. A semi-automatic gold jewelry polishing machine according to claim 4, characterized in that, The length directions of the first roller (3) and the second roller (8) are consistent, and the length directions of the two rods are perpendicular to the length direction of the second roller (8).
6. A semi-automatic gold jewelry polishing machine according to claim 5, characterized in that, A slide rod is fixedly installed between the first plate (1) and the second plate (2), and a platform (11) is slidably installed on the outside of the slide rod.
7. A semi-automatic gold jewelry polishing machine according to claim 6, characterized in that, A second motor (9) is also fixedly installed on the first plate (1). A screw (10) is rotatably installed between the first plate (1) and the second plate (2). The output end of the second motor (9) is fixedly connected to one end of the screw (10). A nut is installed on the outside of the screw (10) via a spiral drive. The nut is fixedly installed inside the platform (11).