A polishing machine for jewelry processing
By installing a liftable permanent magnet disc at the bottom of the polishing box, the problem of jewelry being difficult to separate from the magnetic needle after polishing is solved, achieving a fast and convenient separation method, improving the operating efficiency of the equipment and reducing the amount of cleaning work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG MOONLIGHT JEWELRY MFG CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-23
AI Technical Summary
Existing jewelry polishing machines have difficulty quickly separating jewelry from a large number of magnetic needles after polishing, which leads to longer processing time per batch, reduced efficiency of continuous operation, and small magnetic needles that are easy to remain in the gaps of jewelry, increasing the amount of extra cleaning work.
A liftable permanent magnet disc is installed at the bottom of the polishing box. When the permanent magnet disc rises and approaches the bottom of the inner cavity of the polishing box, it uses magnetic force to attract the magnetic needle and concentrate it at the bottom of the inner cavity of the polishing box. The jewelry and the magnetic needle can be quickly separated by tilting the polishing box.
It achieves rapid and effective separation of jewelry and magnetic needles, is easy to operate, avoids the inefficiency and magnetic needle residue problems of traditional manual separation methods, and improves the continuous operation efficiency of the equipment.
Smart Images
Figure CN224390775U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of jewelry polishing technology, specifically relating to a polishing machine for jewelry processing. Background Technology
[0002] Jewelry often has burrs left on its surface after processing, which need to be removed with a polishing machine. Common types include magnetic polishing machines, which use a magnetic field to drive magnetic needles for grinding and are suitable for complex patterns; and cloth wheel polishing machines, which use a high-speed rotating cloth wheel in conjunction with polishing wax for polishing large areas. These devices can quickly remove burrs, making the surface of jewelry smooth and shiny, improving its texture and appearance.
[0003] A related technology (Chinese Patent No. CN222696834U) discloses a cloth wheel polishing machine for jewelry processing, including a worktable. A motor is mounted on the top of the worktable, and the output end of the motor is connected to a cloth wheel. A transparent protective cover completely covers the cloth wheel. Symmetrically arranged operating channels for hand passage are provided on the lower front of the protective cover. An inclined notch is provided above the operating channel on the protective cover, and a cover plate is hinged to the notch. A through hole is provided on the worktable below the protective cover, and a detachable screen is installed inside the through hole. A ventilation component is located below the through hole to extract dust from inside the protective cover. This cloth wheel polishing machine, while ensuring ease of operation, prevents dust splashing and improves the safety of workers.
[0004] In addition to the cloth wheel polishing machine mentioned above, the magnetic polishing machine commonly used in jewelry polishing is a surface treatment device that uses a high-speed rotating magnetic field to drive a magnetic needle to strike the workpiece at a high frequency. It is mainly used to remove burrs and oxide films from metal and hard plastic workpieces and to polish and clean them. It is widely used in the manufacturing fields of hardware, electronics, medical devices, and jewelry. It is good at processing workpieces with internal holes, gaps and complex irregular shapes. Applicable materials include metals such as copper, stainless steel, and aluminum, as well as hard plastic materials.
[0005] like Figure 7 The image shows a commonly used magnetic polishing machine for jewelry. When operating a conventional magnetic polishing machine, it is difficult to quickly separate the jewelry from the numerous magnetic needles after the jewelry has been polished inside the polishing chamber. This not only prolongs the auxiliary time for single-batch processing and reduces the efficiency of continuous operation, but also easily leads to small magnetic needles remaining in the crevices of the jewelry due to repeated picking during the separation process, requiring additional manpower for subsequent cleaning. Utility Model Content
[0006] To address the problems of existing technologies where polished jewelry is difficult to separate quickly from a large number of magnetic needles, leading to prolonged batch processing time, reduced continuous operation efficiency, and the tendency for small magnetic needles to remain in the jewelry's crevices, further increasing cleaning workload, this invention provides a polishing machine for jewelry processing. A liftable permanent magnet disc is installed at the bottom of the polishing box. When the permanent magnet disc rises and approaches the bottom of the polishing box's inner cavity, it magnetically attracts the magnetic needles, causing them to concentrate at the bottom of the inner cavity. At this point, simply tilting the polished jewelry out of the box achieves rapid and effective separation. This method of separating jewelry and magnetic needles is fast and convenient, effectively avoiding the drawbacks of traditional manual separation methods, such as low efficiency, cumbersome operation, and the tendency for magnetic needles to remain. The specific technical solution is as follows:
[0007] A polishing machine for jewelry processing includes a polishing machine body and a placement table. The placement table is located at the top center of the polishing machine body. The machine also includes a raised edge, a base, a polishing box, and a permanent magnet disk. The raised edge is installed on the inner wall of the placement table, has the same thickness as the placement table, and its diameter is smaller than that of the placement table. The height of the raised edge is one-third to one-half of the height of the placement table. The base is placed on the raised edge, and its outer diameter is the same as that of the raised edge. The polishing box is installed above the base. The permanent magnet disk is located inside the base, and the magnetic force generated by the permanent magnet disk is used to attract magnetic needles inside the polishing box.
[0008] In the above technical solution, the permanent magnet disk is slidably disposed in the inner cavity of the base through an adjustment component. The adjustment component includes: a first moving rod, a baffle, and a first spring. The first moving rod slides vertically through the middle of the bottom inner wall of the base, and the permanent magnet disk is installed at the top of the first moving rod. The baffle is installed at the bottom end of the first moving rod. The first spring is sleeved on the first moving rod, and both ends of the first spring are fixedly connected to the bottom end of the outer wall of the base and the upper surface of the baffle, respectively.
[0009] In the above technical solution, the shape of the permanent magnet disk is adapted to the shape of the inner cavity of the base.
[0010] In the above technical solution, a blocking assembly is provided at the baffle, the blocking assembly including: a fixed plate, a second moving rod, a set of baffles and a second spring. The fixed plate is fixed and vertically installed on the lower surface of the base; the second moving rod slides horizontally through the fixed plate; the set of baffles is installed at the right end of the second moving rod and is slidably disposed on the upper surface of the baffle; the second spring is sleeved on the second moving rod, and the two ends of the second spring are respectively connected to the left side wall of the fixed plate and the left end of the second moving rod.
[0011] In the above technical solution, a cover is embedded in the top of the polishing box.
[0012] In the above technical solution, the bottom of the inner wall of the polishing box is made of a material that allows magnetic force to pass through.
[0013] In the above technical solution, the outer surface of the polishing box and the outer surface of the base are coplanar on the same cylindrical surface.
[0014] In the above technical solution, the polishing box is made of transparent material.
[0015] The present invention discloses a polishing machine for jewelry processing, which, compared with the prior art, has the following advantages:
[0016] I. To address the problem that polished jewelry is difficult to separate quickly from a large number of magnetic needles, resulting in prolonged processing time per batch, reduced efficiency of continuous equipment operation, and the tendency for small magnetic needles to remain in the gaps of the jewelry, increasing the workload of additional cleaning, this utility model sets up a liftable permanent magnet plate at the bottom of the polishing box. When the permanent magnet plate rises and approaches the bottom of the inner cavity of the polishing box, it can generate a magnetic attraction effect on the magnetic needles in the polishing box, causing the magnetic needles to be concentrated and attracted to the bottom of the inner cavity of the polishing box. At this time, it is only necessary to tilt the polished jewelry in the polishing box to achieve quick and effective separation of the two. This method of separating jewelry and magnetic needles is fast and convenient to operate, effectively avoiding the disadvantages of traditional manual separation methods that are inefficient, cumbersome to operate, and prone to magnetic needle residue.
[0017] II. In this utility model, the polishing box and the base adopt an integrated structural design. Both can be simultaneously detached from the top of the polishing machine body for material discharge. After the manually driven baffle is released from its limiting position, under the elastic force of the first spring, the permanent magnet disc can automatically move upward and approach the bottom of the inner wall of the polishing box, thereby attracting the magnetic needles inside the polishing box. Thus, the position of the permanent magnet disc can be switched according to actual needs: when polishing jewelry inside the polishing box, the permanent magnet disc can be detached from the attraction range of the magnetic needles inside the polishing box. At this time, the permanent magnet disc does not attract the magnetic needles, ensuring that the magnetic needles can be normally controlled by the polishing machine body to achieve magnetic field conversion, ensuring the normal progress of jewelry polishing. This utility model, through the flexible adjustment of the position of the permanent magnet disc, combined with the integrated design of the polishing box and the base, makes it easier for both to simultaneously detach from the top of the polishing machine body, efficiently completing the separation operation of the jewelry and magnetic needles after polishing.
[0018] Third, in this utility model, the placement platform and the raised edge can maintain a specific distance from the upper surface of the polishing machine body when the base is placed on the raised edge, leaving sufficient installation space for components such as the baffle at the bottom of the base, ensuring that the placement platform, base, and polishing box form a flat exterior surface, and as a whole, stably complete the jewelry polishing process above the polishing machine body.
[0019] In summary, this utility model achieves rapid and effective separation of jewelry and magnetic needles by setting a liftable permanent magnet disc at the bottom of the polishing box. This method is fast and convenient to operate, avoiding the problems of low efficiency, cumbersome operation, and easy residue of magnetic needles in traditional manual separation. The integrated design of the polishing box and the base, combined with the flexible adjustment of the position of the permanent magnet disc, facilitates the simultaneous detachment of both from the top of the polishing machine body, efficiently completing the separation operation, and ensuring that the magnetic needle is normally controlled by the polishing machine body during polishing, ensuring the normal progress of the polishing process. The placement platform and the raised edge are designed to provide sufficient space at the bottom of the base, so that the placement platform, base, and polishing box form a flat exterior surface, ensuring that the entire assembly stably completes the polishing process above the polishing machine body. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main body of the polishing machine of this utility model;
[0021] Figure 2 This is a front view of the polishing box of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the protruding edge of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the base of this utility model;
[0024] Figure 5 for Figure 4 Enlarged view of point A;
[0025] Figure 6 This is a schematic diagram of the permanent magnet disk of this utility model;
[0026] Figure 7 A schematic diagram of existing jewelry polishing machines on the market;
[0027] Figures 1 to 6 In the middle, 1. Polishing machine body, 2. Placement platform, 3. Protruding edge, 4. Base, 5. First moving rod, 6. Baffle plate, 7. First spring, 8. Permanent magnet disk, 9. Fixing plate, 10. Second moving rod, 11. Baffle plate group, 12. Second spring, 13. Polishing box, 14. Cover. Detailed Implementation
[0028] The following are specific implementation cases and appendices. Figures 1 to 6 The present invention will be further described below, but the present invention is not limited to these embodiments.
[0029] A polishing machine for jewelry processing includes a polishing machine body 1 and a placement table 2. The placement table 2 is located at the top center of the polishing machine body 1. Both the polishing machine body 1 and the placement table 2 use commercially available general-purpose polishing machines and their supporting components. When the polishing machine body 1 is started, the magnetic needles inside the polishing box 13 can be driven by a magnetic field to polish the jewelry inside the box. The working principle and the polishing machine body 1 and the placement table 2 themselves are within the scope of existing technology and will not be described or limited in detail here. The machine also includes: a raised edge 3, a base 4, a polishing box 13, and a permanent magnet disc 8. The raised edge 3 is installed on the inner wall of the placement table 2. The thickness of the raised edge 3 is the same as that of the placement table 2, and the diameter of the raised edge 3 is smaller than that of the placement table 2. The height of the raised edge 3 is one-third to one-half of the height of the placement table 2. Within this range, the raised edge 3 can form a raised edge with sufficient support capacity inside the placement table 2. The base 4 is placed on the raised edge 3, and the height of the raised edge 3 is one-third to one-half of the height of the placement table 2, ensuring that the base 4 is placed on the raised edge 3. After the raised edge 3 is placed on the table, it can be sufficiently blocked and limited by the side wall of the table 2, ensuring the stability of the base 4 when in use on the table 2. Furthermore, the diameter of the raised edge 3 is smaller than the diameter of the table 2 to form the raised edge 3 for placing the base 4. The outer diameter of the base 4 is the same as the outer diameter of the raised edge 3, thus ensuring that the outer diameter of the base 4 placed on the raised edge 3 and the inner diameter of the table 2 are all on the same cylindrical surface, ensuring the stability of the base 4 placed inside the raised edge 3. The polishing box 13 is installed above the base 4, and the magnetic polishing process for the jewelry is completed inside the polishing box 13. The bottom of the inner wall of the polishing box 13 is made of a transparent material. Made of a magnetic material, the permanent magnet disk 8 ensures that the magnetic force generated by the permanent magnet disk 8 can pass through the polishing box 13 to properly attract the magnetic needles inside the polishing box 13. The polishing box 13 is made of a transparent material, allowing real-time observation of the polishing effect of the jewelry inside. The outer surfaces of the polishing box 13 and the base 4 are coplanar on the same cylindrical surface. In this invention, the polishing box 13 and the base 4 adopt an integrated structure, allowing them to move synchronously away from the top of the polishing machine body 1 to perform the unloading operation. This facilitates the synchronous movement of the two components away from the top of the polishing machine body 1, efficiently completing the separation of the jewelry from the magnetic needles after polishing. The permanent magnet disk 8 is disposed in the inner cavity of the base 4, and the magnetic force generated by the permanent magnet disk 8 is used to attract the magnetic needles in the inner cavity of the polishing box 13. The permanent magnet disk 8 is a commercially available general-purpose permanent magnet disk. It is magnetic and can attract the polishing box 13 and the magnetic needles in the inner cavity of the polishing box 13 when it is close to the polishing box 13, so that the magnetic needles are forced to be attracted to the bottom of the inner cavity of the polishing box 13. The magnetic force of the permanent magnet disk 8 is sufficient to attract the magnetic needles in the polishing box 13 even when separated from the bottom plate of the polishing box 13. The permanent magnet disk 8 is a prior art component and adopts a general model that meets the usage requirements. Its model will not be described or limited here.
[0030] This invention features a liftable permanent magnet disc 8 mounted at the bottom of the polishing box 13. When the permanent magnet disc 8 moves upward and approaches the bottom of the inner cavity of the polishing box 13, it magnetically attracts the magnetic needles inside the polishing box 13, causing them to concentrate and adhere to the bottom of the inner cavity. At this point, simply emptying the polished jewelry from the polishing box 13 quickly and effectively separates the jewelry from the magnetic needles. This separation method is not only fast and easy to operate, but also successfully solves the problems of low efficiency, complex operation, and the tendency to leave magnetic needle residue in traditional manual separation methods.
[0031] Main references Figures 4 to 6 As shown, the permanent magnet disk 8 is slidably disposed in the inner cavity of the base 4 via an adjustment assembly, which includes a first moving rod 5, a baffle 6, and a first spring 7. The first moving rod 5 slides vertically through the middle of the bottom inner wall of the base 4, and the permanent magnet disk 8 is mounted on the top of the first moving rod 5. The baffle 6 is mounted on the bottom end of the first moving rod 5. The first spring 7 is sleeved on the first moving rod 5, and both ends of the first spring 7 are fixedly connected to the bottom of the outer wall of the base 4 and the upper surface of the baffle 6, respectively. The shape of the permanent magnet disk 8 is adapted to the shape of the inner cavity of the base 4, ensuring that the permanent magnet disk 8 can generate sufficient magnetic force to attract the magnetic needles in the inner cavity of the polishing box 13. With the help of the elastic force of the first spring 7, the first moving rod 5 and the permanent magnet disk 8 can move upward synchronously, so that the permanent magnet disk 8 moves upward along the inner cavity of the base 4 and plays an attraction role for the magnetic needles in the polishing box 13.
[0032] A blocking assembly is provided at the baffle 6, which includes: a fixed plate 9, a second moving rod 10, a set of baffle plates 11, and a second spring 12. The fixed plate 9 is fixed and vertically installed on the lower surface of the base 4; the second moving rod 10 slides horizontally through the fixed plate 9; the set of baffle plates 11 is installed at the right end of the second moving rod 10 and slides on the upper surface of the baffle 6; the second spring 12 is sleeved on the second moving rod 10, and its two ends are respectively connected to the left side wall of the fixed plate 9 and the left end of the second moving rod 10. A cover 14 is embedded in the top of the polishing box 13. The cover 14 can be fitted and installed or removed as needed at the top of the polishing box 13, realizing the conversion between the closed and open states of the top of the polishing box 13.
[0033] After polishing, first remove the cover 14 from the top of the polishing box 13; then simultaneously lift the polishing box 13 and the base 4, so that the base 4 is separated from the protruding edge 3 and the placement platform 2. Pulling the second moving rod 10 to the left will force the second spring 12 to compress, and at the same time, the group baffle 11 will slowly move to the left away from the upper surface of the baffle 6. When the group baffle 11 completely releases its restriction on the baffle 6, the baffle 6 and the first moving rod 5 move upward under the elastic force of the first spring 7, driving the permanent magnet disk 8 to move upward along the inner cavity of the base 4. After the permanent magnet disk 8 moves upward to near the bottom of the inner cavity of the polishing box 13, it will attract the magnetic needles at the bottom, causing the magnetic needles to gather at the bottom of the inner cavity of the polishing box 13. At this time, tilting the polishing box 13 will allow the polished jewelry inside the cavity to detach, thus quickly separating the jewelry from the large number of magnetic needles.
[0034] The working principle of a polishing machine used for jewelry processing in this embodiment is as follows:
[0035] Place the base 4 on the raised edge 3 to form a stable placement relationship at the placement platform 2; open the cover 14, put the existing magnetic needle for polishing jewelry and the jewelry to be polished into the polishing box 13, and close the cover 14 again to form a sealed relationship with the top of the polishing box 13; use the opened polishing machine body 1 to control the magnetic field of the magnetic needle placed in the polishing box 13 to achieve magnetic polishing of the jewelry in the polishing box 13.
[0036] After polishing, the cover 14 is removed again from the top of the polishing box 13; the polishing box 13 and the base 4 are lifted synchronously to make the base 4 separate from the protruding edge 3 and the placement platform 2. The second moving rod 10 is pulled to the left to force the second spring 12 to be compressed, and the group baffle 11 is gradually separated from the upper surface of the baffle 6 to the left. When the group baffle 11 is completely separated from the blocking limit of the baffle 6, the baffle 6 and the first moving rod 5 move upward under the elastic pull of the first spring 7, causing the permanent magnet disk 8 to move upward along the inner cavity of the base 4. After moving, the permanent magnet disk 8 rises close to the bottom of the inner cavity of the polishing box 13, which can attract the magnetic needle at the bottom of the inner cavity of the polishing box 13, causing the magnetic needle to be located at the bottom of the inner cavity of the polishing box 13. At this time, the polishing box 13 is tilted to make the size of its inner cavity after polishing separate from the inner cavity of the polishing box 13, realizing the rapid separation of the jewelry from the many magnetic needles.
[0037] This invention achieves rapid and effective separation of jewelry and magnetic needles by setting a liftable permanent magnet disk 8 at the bottom of the polishing box 13. This method is fast and convenient to operate, avoiding the problems of low efficiency, cumbersome operation and easy magnetic needle residue in traditional manual separation. The integrated design of the polishing box 13 and the base 4, combined with the flexible adjustment of the position of the permanent magnet disk 8, makes it easy for the two to detach from the top of the polishing machine body 1 at the same time, efficiently completing the separation operation, and ensuring that the magnetic needle is normally controlled by the polishing machine body 1 during polishing, ensuring the normal progress of the polishing process. The placement platform 2 and the protruding edge 3 are set as the bottom part of the base 4, leaving sufficient space so that the placement platform 2, the base 4 and the polishing box 13 form a flat exterior surface, ensuring that the whole is stably completed above the polishing machine body 1.
[0038] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0039] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0040] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0041] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0042] Unless otherwise stated, the term "multiple" means two or more.
[0043] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.
[0044] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.
[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A polishing machine for jewelry processing, comprising a polishing machine body (1) and a placement table (2), wherein the placement table (2) is disposed at the top center of the polishing machine body (1), characterized in that: Also includes: A raised edge (3) is installed on the inner side wall of the placement platform (2). The raised edge (3) has the same thickness as the placement platform (2), and the diameter of the raised edge (3) is smaller than the diameter of the placement platform (2). The height of the raised edge (3) is one-third to one-half of the height of the placement platform (2). The base (4) is placed on the protruding edge (3), and the outer diameter of the base (4) is the same as the outer diameter of the protruding edge (3); Polishing box (13), which is mounted above the base (4); A permanent magnet disk (8) is disposed in the inner cavity of the base (4), and the magnetic force generated by the permanent magnet disk (8) is used to attract the magnetic needles in the inner cavity of the polishing box (13).
2. A polishing machine for jewelry processing according to claim 1, characterized in that: The permanent magnet disk (8) is slidably disposed in the inner cavity of the base (4) via an adjustment component, the adjustment component comprising: The first moving rod (5) slides vertically through the middle of the bottom inner wall of the base (4), and the permanent magnet disk (8) is installed at the top of the first moving rod (5). A baffle (6) is installed at the bottom end of the first moving rod (5); The first spring (7) is sleeved on the first moving rod (5), and the two ends of the first spring (7) are fixedly connected to the bottom end of the outer wall of the base (4) and the upper surface of the baffle (6), respectively.
3. A polishing machine for jewelry processing according to claim 2, characterized in that: The shape of the permanent magnet disk (8) is adapted to the shape of the inner cavity of the base (4).
4. A polishing machine for jewelry processing according to claim 2, characterized in that: A blocking component is provided at the baffle (6), the blocking component comprising: Fixing piece (9), which is fixed and vertically installed on the lower surface of the base (4); The second moving rod (10) slides horizontally through the fixed piece (9); A baffle plate (11) is installed on the right end of the second moving rod (10), and the baffle plate (11) is slidably disposed on the upper surface of the baffle plate (6); The second spring (12) is sleeved on the second moving rod (10), and the two ends of the second spring (12) are respectively connected to the left side wall of the fixed plate (9) and the left end of the second moving rod (10).
5. A polishing machine for jewelry processing according to claim 1, characterized in that: The polishing box (13) has a cover (14) embedded in its top.
6. A polishing machine for jewelry processing according to claim 1, characterized in that: The bottom of the inner wall of the polishing box (13) is made of a magnetically permeable material.
7. A polishing machine for jewelry processing according to claim 1, characterized in that: The outer surface of the polishing box (13) and the outer surface of the base (4) are coplanar on the same cylindrical surface.
8. A polishing machine for jewelry processing according to claim 1, characterized in that: The polishing box (13) is made of transparent material.