Grinding device for jewelry

Abstract

The invention relates to the technical field of jewelry processing, and discloses a jewelry grinding device which comprises a mounting plate and an adjusting assembly arranged at the top of the mounting plate, the adjusting assembly comprises a fixed transverse plate fixedly connected to the top of the mounting plate, and an electric push rod is fixedly connected to the inner wall of the fixed transverse plate. The output end of the electric push rod is fixedly connected with a sliding block, the outer wall of the sliding block is slidably connected with the inner wall of the fixed transverse plate, the top of the sliding block is fixedly connected with a movable plate, the side wall of the movable plate is fixedly connected with a first fixed frame, and the inner wall of the first fixed frame is fixedly connected with a first driving motor; and the output end of the first driving motor is fixedly connected with a first output shaft, the first output shaft movably penetrates through the interior of the moving plate and extends to the exterior of the moving plate, by arranging the adjusting assembly, the jewelry bracelet can be conveniently supported outwards through the supporting plate, and therefore the surface of the jewelry bracelet can be conveniently ground.

Description

Technical Field

[0001] The invention relates to the technical field of jewelry processing, in particular to a grinding device for jewelry. Background Art

[0002] Jewelry refers to the raw materials and semi-finished products of jewels, jades and precious metals, as well as wearable accessories, craft decorations and art collections made from the raw materials and semi-finished products of jewels, jades and precious metals. With the rapid development of the economy, the variety of jewelery consumption has shown a diversified development trend. In addition to traditional gold jewelry, the sales growth of jadeite, jade, platinum, diamond and gemstone jewelry is also very obvious. In particular, jadeite and jade artworks and decorations are becoming more and more popular among consumers.

[0003] According to Chinese patent CN115157098B, a grinding device and method for jewelry is proposed. The device can quickly grind the surface burrs in a short time by driving the ring blank to rotate at high speed and fully rub against the grinding sand. The time is short, the grinding quality is high, and the operation is very convenient and quick.

[0004] However, there may be some shortcomings in this patent. When in use, the device can only grind ring-shaped jewelry such as rings, but cannot grind jewelry such as jewelry bracelets, which makes the device have certain limitations during use and affects the use effect of the device. For this reason, we propose a grinding device for jewelry. Summary of the invention

[0005] The object of the present invention is to provide a grinding device for jewelry, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding device for jewelry, comprising a mounting plate, and an adjusting assembly arranged on the top of the mounting plate, the adjusting assembly comprising a fixed horizontal plate fixedly connected to the top of the mounting plate, an electric push rod fixedly connected to the inner wall of the fixed horizontal plate, a slider fixedly connected to the output end of the electric push rod, an outer wall of the slider slidably connected to the inner wall of the fixed horizontal plate, a moving plate fixedly connected to the top of the slider, a first fixed frame fixedly connected to the side wall of the moving plate, a first driving frame fixedly connected to the inner wall of the first fixed frame Motor, the output end of the first drive motor is fixedly connected to the first output shaft, the first output shaft movably passes through the interior of the movable plate and extends to the outside of the movable plate, the other end of the first output shaft is fixedly connected to a truncated table, the inner wall of the truncated table is fixedly connected to the second drive motor, the output end of the second drive motor is fixedly connected to a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected to a socket block, the side inner wall of the socket block is slidably connected to a limiting cross bar, one end of the limiting cross bar is fixedly connected to the side wall of the truncated table, and the top of the socket block is movably connected to a rotating block through a hinge The other end of the rotating block is movably connected to a support plate through a hinge, and an arc groove is provided on the top of the support plate. By setting an adjustment component, when it is necessary to grind the surface of jewelry bracelets, the jewelry bracelets need to be fixed first. At this time, the operator sets the bracelet inside the support plate to make the bracelet fall accurately into the arc groove, and then turns on the second drive motor to cause the bidirectional threaded rod to rotate. During the rotation of the bidirectional threaded rod, the two sleeve blocks on the outer wall of the bidirectional threaded rod move under the action of limiting the sleeve block by the limiting cross bar. When When the two sleeve blocks are relatively close to each other, the hinge will cause the rotating block to rotate and the support plate to expand outward, so as to support and fix the jewelry bracelet on the outer wall of the support plate, so as to prevent the jewelry bracelet from shaking during the grinding of the jewelry bracelet surface. When the grinding position of the jewelry bracelet surface needs to be adjusted during the grinding of the jewelry bracelet, the operator drives the first output shaft to rotate through the first drive motor. During the rotation of the first output shaft, the truncated table will rotate with it, so as to facilitate the adjustment of the grinding position of the jewelry bracelet surface.

[0007] Preferably, the adjusting assembly also includes a connecting block fixedly connected to the bottom side wall of the movable plate, the side of the connecting block is fixedly connected with a push column, the other end of the push column is fixedly connected to a rubber block, the outer wall of the rubber block is slidably connected with a sleeve, the middle outer wall of the sleeve is fixedly connected with a support sleeve, the bottom of the support sleeve is fixedly connected to the top of the mounting plate, the other end of the sleeve is connected to an exhaust pipe, the other end of the exhaust pipe is connected to an exhaust head, and the exhaust head is located above the right side of the mounting plate. When it is necessary to adjust the lateral position of the jewelry bracelet during the grinding process, the operator turns on the electric push rod to push the slider with the moving plate to adjust the lateral grinding position of the jewelry bracelet. During the movement of the moving plate, the push column will be squeezed through the connecting block, prompting the push column to push the rubber block to move, and the gas in the sleeve cavity will be discharged from the exhaust head through the exhaust pipe through the rubber block, so that the discharged gas can effectively blow away the dust generated during the grinding process, thereby improving the grinding accuracy of the jewelry bracelet.

[0008] Preferably, a grinding assembly is also provided above the mounting plate, and the grinding assembly includes a side rod fixedly connected to the left side of the outer wall of the mounting plate, the other end of the side rod is fixedly connected to the top plate, the bottom of the top plate is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a second fixing frame, the top of the inner wall of the second fixing frame is fixedly connected to a third driving motor, the output end of the third driving motor is fixedly connected to a second output shaft, and the bottom of the second output shaft is fixedly connected to a grinding disc. By setting the grinding assembly, when it is necessary to grind the jewelry bracelet, the operator turns on the cylinder to prompt the cylinder to push the second fixing frame to move downward, thereby facilitating the adjustment of the grinding height of the jewelry bracelet. After the grinding height is adjusted, the operator turns on the third driving motor to prompt the second output shaft to rotate. During the rotation of the second output shaft, the grinding disc will be rotated with it, prompting the grinding disc to grind the surface of the jewelry bracelet.

[0009] Preferably, the grinding assembly also includes a rectangular sleeve movably connected to the outer wall of the second fixed frame through a hinge, the bottom of the inner wall of the rectangular sleeve is fixedly connected to a spring, the other end of the spring is fixedly connected to a limiting block, the outer wall of the limiting block is slidably connected to the inner wall of the rectangular sleeve, the other side of the limiting block is fixedly connected to a clamping column, the other end of the clamping column is slidably connected to a tooth plate, the top of the tooth plate is fixedly connected to the bottom of the top plate, when the surface grinding of the jewelry bracelet is completed, the operator causes the second fixed frame to lift upward by closing the cylinder, when the second fixed frame is lifted upward, the clamping column inside the rectangular sleeve on its side will be squeezed against the side wall of the tooth plate, and the limiting action of the clamping column on the spring and the limiting block will cause the second fixed frame to vibrate, thereby facilitating the shaking off of dust adhering to the surface of the grinding disc during the grinding process.

[0010] Preferably, a support leg is fixedly connected to the bottom of the mounting plate, and there are four support legs. The four support legs are equal in size and fixedly connected to the four corners of the bottom of the mounting plate at equal distances. By providing four support legs, the four support legs can be used to provide stable support for the mounting plate.

[0011] Preferably, the outer wall of the slider is matched with the inner wall of the fixed horizontal plate, and the top of the slider is fixedly connected to the bottom of the movable plate. By setting the slider, the fixed horizontal plate and the movable plate, the slider can move with the movable plate during the sliding process inside the fixed horizontal plate, thereby adjusting the grinding position of the jewelry bracelet.

[0012] Preferably, the outer wall of the rubber block is matched with the inner wall of the sleeve, and the side wall of the rubber block is fixedly connected to one end of the push column.

[0013] Preferably, there are two side rods, the two side rods are equal in size, and the two side rods are symmetrically distributed along the center plane of the mounting plate. By providing two side rods, the function of supporting the top plate is achieved.

[0014] The present invention provides a grinding device for jewelry. The grinding device for jewelry has the following beneficial effects: (1) The grinding device for jewelry is provided with an adjustment component. When it is necessary to grind the surface of jewelry such as jewelry bracelets, the jewelry bracelets need to be fixed first. At this time, the operator sets the bracelet inside the support plate so that the bracelet falls accurately into the arc groove, and then turns on the second drive motor to cause the bidirectional threaded rod to rotate. During the rotation of the bidirectional threaded rod, the two sleeve blocks on the outer wall of the bidirectional threaded rod are moved under the action of the sleeve block limited by the limit cross bar. When the two sleeve blocks are relatively close to each other, the hinge causes the rotating block to rotate and causes the support plate to expand outward, thereby supporting and fixing the jewelry bracelet on the outer wall of the support plate, so as to prevent the jewelry bracelet from shaking during the grinding of the surface of the jewelry bracelet. During the grinding process of the jewelry bracelet, when it is necessary to adjust the grinding position of the jewelry bracelet surface, the operator causes the first output shaft to rotate through the first driving motor, and the round table will rotate with the first output shaft during the rotation process, so as to facilitate the adjustment of the grinding position of the jewelry bracelet surface. When it is necessary to adjust the lateral position of the jewelry bracelet during the grinding process, the operator turns on the electric push rod to cause the slider to push the moving plate to adjust the lateral grinding position of the jewelry bracelet. During the movement of the moving plate, the push column will be squeezed through the connecting block, causing the push column to push the rubber block to move, and the gas in the sleeve cavity will be discharged from the exhaust head through the exhaust pipe through the rubber block, so that the discharged gas can effectively blow away the dust generated during the grinding process, thereby improving the grinding accuracy of the jewelry bracelet; (2) The grinding device for jewelry is provided with a grinding assembly. When it is necessary to grind a jewelry bracelet, the operator turns on the air cylinder to cause the air cylinder to push the second fixed frame downward, thereby facilitating the adjustment of the grinding height of the jewelry bracelet. After the grinding height is adjusted, the operator turns on the third drive motor to cause the second output shaft to rotate. During the rotation of the second output shaft, the grinding disc is driven to rotate, causing the grinding disc to grind the surface of the jewelry bracelet. After the surface of the jewelry bracelet is ground, the operator turns off the air cylinder to cause the second fixed frame to lift upward. During the upward lifting of the second fixed frame, the clamping column inside the rectangular sleeve on its side is squeezed against the side wall of the tooth plate. Under the limiting action of the clamping column by the spring and the limiting block, the second fixed frame is vibrated, thereby facilitating the shaking off of dust adhering to the surface of the grinding disc during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the regulating component in the present invention; Figure 4 is a cross-sectional view of the adjustment assembly of the present invention; Figure 5 for Figure 4 A partial enlarged view of the middle A; Figure 6 It is a side structural schematic diagram of the adjustment component in the present invention; Figure 7 It is a schematic diagram of the structure of the grinding assembly in the present invention; Figure 8 is a cross-sectional view of the grinding assembly of the present invention; Fig. 9 for Figure 8 A partial enlarged view of point B in the middle.

[0016] In the figure: 1, mounting plate; 2, supporting leg; 31, adjusting assembly; 311, fixed horizontal plate; 312, electric push rod; 313, slider; 314, moving plate; 315, first fixed frame; 316, first driving motor; 317, first output shaft; 318, round table; 319, second driving motor; 3110, two-way threaded rod; 3111, sleeve block; 3112, limit horizontal rod; 3113, rotating block; 3114, supporting plate; 3115, arc groove; 311 6. Connecting block; 3117. Push column; 3118. Rubber block; 3119. Bushing; 3120. Support sleeve; 3121. Exhaust pipe; 3122. Exhaust head; 32. Grinding assembly; 321. Side rod; 322. Top plate; 323. Cylinder; 324. Second fixed frame; 325. Third drive motor; 326. Second output shaft; 327. Grinding disc; 328. Rectangular sleeve; 329. Spring; 3210. Limit block; 3211. Clamping column; 3212. Tooth plate. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0018] A preferred embodiment of a jewelry grinding device provided by the present invention is as follows: Figures 1 to 9As shown: A grinding device for jewelry, including a mounting plate 1, and an adjustment component 31 arranged on the top of the mounting plate 1, the adjustment component 31 includes a fixed horizontal plate 311 fixedly connected to the top of the mounting plate 1, an electric push rod 312 is fixedly connected to the inner wall of the fixed horizontal plate 311, a slider 313 is fixedly connected to the output end of the electric push rod 312, the outer wall of the slider 313 is slidably connected to the inner wall of the fixed horizontal plate 311, a moving plate 314 is fixedly connected to the top of the slider 313, a first fixed frame 315 is fixedly connected to the side wall of the moving plate 314, a first driving motor 316 is fixedly connected to the inner wall of the first fixed frame 315, and the output end of the first driving motor 316 is fixedly connected to The first output shaft 317 is movable through the interior of the movable plate 314 and extends to the outside of the movable plate 314. The other end of the first output shaft 317 is fixedly connected with a round table 318. The inner wall of the round table 318 is fixedly connected with a second drive motor 319. The output end of the second drive motor 319 is fixedly connected with a bidirectional threaded rod 3110. The outer wall of the bidirectional threaded rod 3110 is threadedly connected with a sleeve block 3111. The inner wall of the side of the sleeve block 3111 is slidably connected with a limiting cross bar 3112. One end of the limiting cross bar 3112 is fixedly connected to the side wall of the round table 318. The top of the sleeve block 3111 is movably connected with a rotating block 3113 through a hinge. The rotating block 3113 The other end is movably connected to a support plate 3114 through a hinge, and an arc groove 3115 is provided on the top of the support plate 3114. By setting the adjustment component 31, when it is necessary to grind the surface of jewelry bracelets, the jewelry bracelets need to be fixed first. At this time, the operator sets the bracelet inside the support plate 3114 to make the bracelet accurately fall into the arc groove 3115, and then turns on the second drive motor 319 to cause the bidirectional threaded rod 3110 to rotate. During the rotation of the bidirectional threaded rod 3110, the two sleeve blocks 3111 on the outer wall of the bidirectional threaded rod 3110 are limited by the limiting cross bar 3112. When the two sleeve blocks 3111 are relatively close to each other, the hinge will cause the rotating block 3113 to rotate and the support plate 3114 to expand outward, thereby supporting and fixing the jewelry bracelet on the outer wall of the support plate 3114, so as to prevent the jewelry bracelet from shaking during the grinding of the jewelry bracelet surface. When the grinding position of the jewelry bracelet surface needs to be adjusted during the grinding of the jewelry bracelet, the operator drives the first output shaft 317 to rotate through the first drive motor 316. During the rotation of the first output shaft 317, the round table 318 will be rotated, so as to facilitate the adjustment of the grinding position of the jewelry bracelet surface.

[0019] The adjusting component 31 also includes a connecting block 3116 fixedly connected to the bottom side wall of the movable plate 314, a push column 3117 is fixedly connected to the side of the connecting block 3116, the other end of the push column 3117 is fixedly connected to a rubber block 3118, a sleeve 3119 is slidably connected to the outer wall of the rubber block 3118, a support sleeve 3120 is fixedly connected to the middle outer wall of the sleeve 3119, the bottom of the support sleeve 3120 is fixedly connected to the top of the mounting plate 1, the other end of the sleeve 3119 is connected to an exhaust pipe 3121, the other end of the exhaust pipe 3121 is connected to an exhaust head 3122, the exhaust head 3122 is located on the upper right side of the mounting plate 1, when When it is necessary to adjust the lateral position of the jewelry bracelet during the grinding process, the operator turns on the electric push rod 312 to push the slider 313 with the movable plate 314 to adjust the lateral grinding position of the jewelry bracelet. During the movement of the movable plate 314, the push column 3117 is squeezed through the connecting block 3116, prompting the push column 3117 to push the rubber block 3118 to move, and the gas in the cavity of the sleeve 3119 is discharged from the exhaust head 3122 through the exhaust pipe 3121 through the rubber block 3118, so that the exhausted gas can effectively blow away the dust generated during the grinding process, thereby improving the grinding accuracy of the jewelry bracelet.

[0020] A preferred embodiment of a jewelry grinding device provided by the present invention is as follows: Figures 1 to 9 As shown: a grinding assembly 32 is also arranged above the mounting plate 1, and the grinding assembly 32 includes a side rod 321 fixedly connected to the left side of the outer wall of the mounting plate 1, the other end of the side rod 321 is fixedly connected to a top plate 322, the bottom of the top plate 322 is fixedly connected to a cylinder 323, the output end of the cylinder 323 is fixedly connected to a second fixing frame 324, the top of the inner wall of the second fixing frame 324 is fixedly connected to a third driving motor 325, the output end of the third driving motor 325 is fixedly connected to a second output shaft 326, and the bottom of the second output shaft 326 is fixedly connected to The grinding disc 327 is provided with the grinding assembly 32. When the jewelry bracelet needs to be ground, the operator turns on the cylinder 323 to prompt the cylinder 323 to push the second fixed frame 324 downward, thereby facilitating the adjustment of the grinding height of the jewelry bracelet. After the grinding height is adjusted, the operator turns on the third drive motor 325 to prompt the second output shaft 326 to rotate. During the rotation of the second output shaft 326, the grinding disc 327 will be rotated, prompting the grinding disc 327 to grind the surface of the jewelry bracelet.

[0021] The grinding assembly 32 also includes a rectangular sleeve 328 movably connected to the outer wall of the second fixed frame 324 through a hinge, a spring 329 is fixedly connected to the bottom of the inner wall of the rectangular sleeve 328, the other end of the spring 329 is fixedly connected to a limit block 3210, the outer wall of the limit block 3210 is slidably connected to the inner wall of the rectangular sleeve 328, the other side of the limit block 3210 is fixedly connected to a clamping column 3211, the other end of the clamping column 3211 is slidably connected to a tooth plate 3212, the top of the tooth plate 3212 is fixedly connected to the bottom of the top plate 322 Next, when the surface grinding of the jewelry bracelet is completed, the operator closes the cylinder 323 to cause the second fixing frame 324 to lift upward. When the second fixing frame 324 is lifted upward, the clamping column 3211 inside the rectangular sleeve 328 on its side will be squeezed against the side wall of the tooth plate 3212. The spring 329 and the limit block 3210 limit the clamping column 3211, which will cause the second fixing frame 324 to vibrate, thereby facilitating the shaking off of dust adhering to the surface of the grinding disc 327 during the grinding process.

[0022] Furthermore, a support leg 2 is fixedly connected to the bottom of the mounting plate 1. There are four support legs 2. The four support legs 2 are equal in size and are fixedly connected to the four corners of the bottom of the mounting plate 1 at equal distances. By providing four support legs 2, it is convenient to use the four support legs 2 to provide stable support for the mounting plate 1.

[0023] Furthermore, the outer wall of the slider 313 is matched with the inner wall of the fixed horizontal plate 311, and the top of the slider 313 is fixedly connected to the bottom of the movable plate 314. By setting the slider 313, the fixed horizontal plate 311 and the movable plate 314, the slider 313 can move with the movable plate 314 during the sliding process inside the fixed horizontal plate 311, thereby adjusting the grinding position of the jewelry bracelet.

[0024] Furthermore, the outer wall of the rubber block 3118 is matched with the inner wall of the sleeve 3119 , and the side wall of the rubber block 3118 is fixedly connected to one end of the push column 3117 .

[0025] In addition, there are two side rods 321 , the two side rods 321 are equal in size, and the two side rods 321 are symmetrically distributed along the central plane of the mounting plate 1 . By providing the two side rods 321 , the top plate 322 is supported.

[0026] Working principle: when it is necessary to grind the surface of jewelry bracelets, the jewelry bracelets need to be fixed first. At this time, the operator sets the bracelet inside the support plate 3114 to make the bracelet fall accurately into the arc groove 3115, and then turns on the second drive motor 319 to cause the bidirectional threaded rod 3110 to rotate. During the rotation of the bidirectional threaded rod 3110, the two sleeve blocks 3111 on the outer wall of the bidirectional threaded rod 3110 are moved under the action of the limiting cross bar 3112 to limit the sleeve block 3111. When the two sleeve blocks 3111 are relatively close, the hinge will cause the rotating block 3113 to rotate and cause the support plate 3114 to expand outward, thereby supporting and fixing the jewelry bracelet on the outer wall of the support plate 3114, so as to prevent the jewelry bracelet from shaking during the grinding of the jewelry bracelet surface. When the grinding position of the jewelry bracelet surface needs to be adjusted, the operator causes the first output shaft 317 to rotate through the first driving motor 316. During the rotation of the first output shaft 317, the round table 318 will be rotated, so as to facilitate the adjustment of the grinding position of the jewelry bracelet surface. When the lateral position of the jewelry bracelet during the grinding process needs to be adjusted, the operator turns on the electric push rod 312 to cause the slider 313 to push the moving plate 314 to adjust the lateral grinding position of the jewelry bracelet. During the movement of the moving plate 314, the push column 3117 is squeezed through the connecting block 3116, causing the push column 3117 to push the rubber block 3118 to move, and the gas in the cavity of the sleeve 3119 is discharged from the exhaust head 3122 through the exhaust pipe 3121 through the rubber block 3118, so that the discharged gas can effectively blow away the dust generated during the grinding process, thereby improving the grinding accuracy of the jewelry bracelet; When it is necessary to grind the jewelry bracelet, the operator turns on the cylinder 323 to cause the cylinder 323 to push the second fixing frame 324 downward, so as to facilitate the adjustment of the grinding height of the jewelry bracelet. After the grinding height is adjusted, the operator turns on the third driving motor 325 to cause the second output shaft 326 to rotate. During the rotation of the second output shaft 326, the grinding disc 327 is rotated to cause the grinding disc 327 to grind the surface of the jewelry bracelet. When the surface grinding of the jewelry bracelet is completed, the operator turns off the cylinder 323 to cause the second fixing frame 324 to lift upward. During the upward lifting of the second fixing frame 324, the clamping column 3211 inside the rectangular sleeve 328 on its side is squeezed with the side wall of the tooth plate 3212. Under the limiting action of the clamping column 3211 by the spring 329 and the limiting block 3210, the second fixing frame 324 will vibrate, so as to facilitate the shaking off of dust adhering to the surface of the grinding disc 327 during the grinding process.

[0027] The above description is only an illustrative specific implementation mode of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the present invention should naturally cover other combinations and specific applications related to this case.

Claims

1. A grinding device for jewelry, comprising a mounting plate (1), and an adjustment assembly (31) arranged on the top of the mounting plate (1), characterized in that: The adjustment assembly (31) comprises a fixed transverse plate (311) fixedly connected to the top of the mounting plate (1); an electric push rod (312) is fixedly connected to the inner wall of the fixed transverse plate (311); a slider (313) is fixedly connected to the output end of the electric push rod (312); an outer wall of the slider (313) is slidably connected to the inner wall of the fixed transverse plate (311); a movable plate (314) is fixedly connected to the top of the slider (313); a first fixed frame (315) is fixedly connected to the side wall of the movable plate (314); a first drive motor (316) is fixedly connected to the inner wall of the first fixed frame (315); a first output shaft (317) is fixedly connected to the output end of the first drive motor (316); the first output shaft (317) movably passes through the interior of the movable plate (314) and extends to the inner wall of the movable plate (314). Externally, the other end of the first output shaft (317) is fixedly connected to a truncated table (318), the inner wall of the truncated table (318) is fixedly connected to a second drive motor (319), the output end of the second drive motor (319) is fixedly connected to a bidirectional threaded rod (3110), the outer wall of the bidirectional threaded rod (3110) is threadedly connected to a sleeve block (3111), the inner wall of the side surface of the sleeve block (3111) is slidably connected to a limiting cross bar (3112), one end of the limiting cross bar (3112) is fixedly connected to the side wall of the truncated table (318), the top of the sleeve block (3111) is movably connected to a rotating block (3113) via a hinge, the other end of the rotating block (3113) is movably connected to a support plate (3114) via a hinge, and the top of the support plate (3114) is provided with an arc groove (3115).

2. A jewelry grinding device according to claim 1, characterized in that: The adjustment assembly (31) further comprises a connection block (3116) fixedly connected to the side wall of the bottom of the movable plate (314); a push column (3117) is fixedly connected to the side of the connection block (3116); a rubber block (3118) is fixedly connected to the other end of the push column (3117); a sleeve (3119) is slidably connected to the outer wall of the rubber block (3118); a support sleeve (3120) is fixedly connected to the middle outer wall of the sleeve (3119); the bottom of the support sleeve (3120) is fixedly connected to the top of the mounting plate (1); the other end of the sleeve (3119) is connected to an exhaust pipe (3121); the other end of the exhaust pipe (3121) is connected to an exhaust head (3122); the exhaust head (3122) is located above the right side of the mounting plate (1).

3. The grinding device for jewelry according to claim 1, characterized in that: A grinding assembly (32) is also provided above the mounting plate (1), the grinding assembly (32) comprising a side rod (321) fixedly connected to the left side of the outer wall of the mounting plate (1), the other end of the side rod (321) being fixedly connected to a top plate (322), the bottom of the top plate (322) being fixedly connected to a cylinder (323), the output end of the cylinder (323) being fixedly connected to a second fixing frame (324), the top of the inner wall of the second fixing frame (324) being fixedly connected to a third drive motor (325), the output end of the third drive motor (325) being fixedly connected to a second output shaft (326), and the bottom of the second output shaft (326) being fixedly connected to a grinding disc (327).

4. A jewelry grinding device according to claim 3, characterized in that: The grinding assembly (32) further comprises a rectangular sleeve (328) movably connected to the outer wall of the second fixed frame (324) via a hinge, a spring (329) being fixedly connected to the bottom of the inner wall of the rectangular sleeve (328), the other end of the spring (329) being fixedly connected to a limit block (3210), the outer wall of the limit block (3210) being slidably connected to the inner wall of the rectangular sleeve (328), a clamping column (3211) being fixedly connected to the other side of the limit block (3210), the other end of the clamping column (3211) being slidably connected to a tooth plate (3212), the top of the tooth plate (3212) being fixedly connected to the bottom of the top plate (322).

5. The grinding device for jewelry according to claim 1, characterized in that: The bottom of the mounting plate (1) is fixedly connected with a support leg (2), the number of the support legs (2) is four, the four support legs (2) are equal in size, and the four support legs (2) are equidistantly fixedly connected to the four corners of the bottom of the mounting plate (1).

6. The grinding device for jewelry according to claim 1, characterized in that: The outer wall of the sliding block (313) is matched with the inner wall of the fixed transverse plate (311), and the top of the sliding block (313) is fixedly connected to the bottom of the movable plate (314).

7. The grinding device for jewelry according to claim 2, characterized in that: The outer wall of the rubber block (3118) is matched with the inner wall of the sleeve (3119), and the side wall of the rubber block (3118) is fixedly connected to one end of the push column (3117).

8. The grinding device for jewelry according to claim 3, characterized in that: There are two side rods (321), the two side rods (321) are equal in size, and the two side rods (321) are symmetrically distributed along the central plane of the mounting plate (1).

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