A grinding device

Abstract

This utility model provides a polishing device for polishing the surface of jade pieces, comprising: a worktable including a defined working area; a polishing assembly including a support, a grinding wheel, and a water-retaining cover, wherein the support is fixed to one side of the working area, the grinding wheel is located within the working area and rotatably mounted on the support, and the water-retaining cover is fixed to the support and partially surrounds the circumference of the grinding wheel; a power assembly connected to the support and driving the grinding wheel to rotate; and a water tank placed at the bottom of the worktable, including a water outlet; the water-retaining cover has a first water outlet and a second water outlet on the side facing the circumference of the grinding wheel, both of which are connected to the water outlet; the water outlet of the first water outlet is directed through the rotation center of the grinding wheel, and the water outlet of the second water outlet is inclined and tangential to the outer circumferential surface of the grinding wheel. This device ensures sufficient cooling water supply and rapid cleaning of the grinding wheel surface, while also improving comfort and ease of observation during processing.

Description

Technical Field

[0001] This utility model belongs to the technical field of jade processing equipment, specifically relating to a polishing device. Background Technology

[0002] Artworks made from natural jade through carving and polishing have been beloved by people all over the world since ancient times. Fine jade processing also enhances the aesthetic value of natural jade.

[0003] In jade processing, polishing is one of the most important processes, often performed after material preparation and in the shaping stage following initial cutting. Its importance is self-evident. Currently, most custom jade processing still uses manual polishing methods.

[0004] However, in the grinding and polishing process of small jade crafts, jade powder easily accumulates on the grinding surface due to the small size of the grinding wheels. Currently, this is often removed by pouring cooling water, but it is difficult to control the pouring pressure during the process. If the pressure is too low, the jade powder cannot be completely removed, affecting grinding efficiency; if the pressure is too high, it is easy to cause splashing, affecting the grinding operation of the workers and also affecting their health and safety. Although there are some solutions in existing technologies, while eliminating the above problems, other problems have arisen, such as hindering processing observation and inconvenience in operation, making it counterproductive. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides a grinding device with a first water outlet and a second water outlet on a water-blocking and guiding cover. The water outlet of the first water outlet is oriented through the rotation center of the grinding wheel, while the water outlet of the second water outlet is inclined and tangential to the outer circumferential surface of the grinding wheel. This device ensures sufficient cooling water is supplied during jade grinding, quickly cleaning the grinding wheel surface and improving grinding quality and efficiency. Simultaneously, the worker is no longer exposed to cooling water splashes during jade grinding, ensuring comfort and reducing the difficulty of observation during the process.

[0006] The technical effect to be achieved by this utility model is realized through the following technical solution:

[0007] This utility model provides a polishing device for polishing the surface of jade pieces, including:

[0008] A workbench, including a defined work area;

[0009] The grinding assembly includes a support, a grinding wheel, and a water-retaining and guiding cover. The support is fixed to one side of the working area, the grinding wheel is located in the working area and rotatably mounted on the support, and the water-retaining and guiding cover is fixed to the support and partially surrounds the circumference of the grinding wheel.

[0010] A power unit, driven and connected to the support, drives the grinding wheel to rotate; and

[0011] A water tank, placed at the bottom of the workbench, includes a water outlet port;

[0012] The water-blocking and water-guiding cover has a first water outlet and a second water outlet on the side facing the circumference of the grinding wheel. The first water outlet and the second water outlet are respectively connected to the water outlet port. The water outlet direction of the first water outlet passes through the rotation center of the grinding wheel, and the water outlet direction of the second water outlet is tangent to the outer circumferential surface of the grinding wheel.

[0013] In some implementations, the workbench is further defined with an operating station located on one side of the longitudinal direction of the work area; the second water outlet is located on the side of the first water outlet away from the operating station, and the water outlet direction of the second water outlet is away from the operating station.

[0014] In some implementations, the water-blocking and guiding cover is provided with a baffle plate in the water outlet direction of the second water outlet. The angle between the baffle plate and the water outlet direction of the second water outlet on one side of the grinding wheel is α, and α satisfies the formula: α≤85°.

[0015] In some implementations, the cross-sectional area of ​​the first water outlet is larger than that of the second water outlet; the second water outlet is an arc-shaped hole.

[0016] In some implementations, the water tank contains cooling water, the first water outlet continuously pours the cooling water toward the grinding wheel in large quantities, and the second water outlet intermittently sprays the cooling water at high speed toward the grinding wheel.

[0017] In some implementations, the workbench is provided with a transition water tank, which is located at the lower end of the grinding wheel in the height direction. The transition water tank is provided with an overflow hole, which is connected to the water tank.

[0018] In some implementations, a protective cover is fixed to the workbench, which encloses the work area and has an observation window for processing observation and an operation hole for processing operation on the side facing the operation station.

[0019] In some implementations, the protective cover includes an auxiliary observation component, which includes a magnifying glass and a support frame. The magnifying glass is disposed on the outside of the observation window away from the working area. The support frame is slidably disposed on the protective cover, with one end fixedly connected to the magnifying glass and the other end passing through the protective cover into the working area.

[0020] In some implementations, the protective cover includes a cleaning scraper that is attached to the side of the observation window away from the magnifying glass, and one end of the cleaning scraper is rotatably mounted on the observation window.

[0021] In some implementations, the protective cover further includes a storage box, which is installed on the side of the protective cover facing the operating station. The storage box includes a storage space through which the jade piece can be transferred from inside the protective cover to outside the protective cover.

[0022] In summary, this utility model has at least the following advantages:

[0023] 1. The polishing device provided by this utility model has a first water outlet that primarily outputs cooling water to cool the polished jade surface, which is then evenly poured onto the grinding wheel. The second water outlet, whose water flow direction is tangential to the outer surface of the grinding wheel, outputs cooling water used to clean jade powder adhering to the grinding wheel surface. The first and second water outlets are connected to separate water outlet ports, allowing for independent control of both. This ensures sufficient cooling water supply during jade polishing while also quickly cleaning the grinding wheel surface, improving polishing quality and efficiency.

[0024] 2. The polishing device provided by this utility model has the first water outlet and the second water outlet both located on the side of the water-blocking and water-guiding cover facing the circumference of the grinding wheel. Regardless of the pressure and flow rate of the first water outlet and the second water outlet, it can ensure that the processing personnel are not splashed by cooling water during the jade polishing process, thereby improving the comfort and observation convenience of the processing personnel during the processing process. Attached Figure Description

[0025] Figure 1 This is an axonometric view of the grinding device in Example 1.

[0026] Figure 2 This is an exploded view of the grinding device in Example 1.

[0027] Figure 3 for Figure 1 BB section view at point A in the diagram.

[0028] Figure 4 This is a schematic diagram of the cooling water flow from the first and second water outlets in Example 1.

[0029] Figure 5 The image shows a bottom view of the first and second water outlets in Example 1, where the water-blocking and guiding cover is visible.

[0030] Figure 6 This is an axonometric view of the grinding device in Example 2.

[0031] Figure 7This represents the cooling water flow direction in the transition water tank of Example 2.

[0032] Figure 8 This is an axonometric view of the grinding device in Example 3.

[0033] Figure 9 for Figure 8 CC section view in the image.

[0034] Figure 10 for Figure 8 A magnified view of point D in the image.

[0035] Marked in the image:

[0036] 100. Grinding device;

[0037] 200. Jade and stone items;

[0038] 1. Workbench; 11. Work area; 12. Operating station; 13. Transition water tank; 131. Overflow hole; 132. Third pipeline; 14. Protective cover; 141. Observation window; 142. Operating hole; 143. Auxiliary observation component; 1431. Magnifying glass; 1432. Support frame; 144. Cleaning scraper; 145. Storage box; 1451. Storage space.

[0039] 2. Grinding assembly, 21. Support, 211. Rotating shaft, 22. Grinding wheel, 221. Outer peripheral surface, 23. Water baffle and guide cover, 231. First water outlet, 232. Second water outlet, 233. Baffle plate, 234. Hydraulic pipeline;

[0040] 3. Power components, 31. Drive motor, 32. Pulleys and belts;

[0041] 4. Water tank; 41. Water outlet port; 411. Output connector; 42. Water inlet port; 43. Cooling water;

[0042] 5. Ultrasonic cleaning device;

[0043] O, the center of rotation of the grinding wheel; L1, the direction of water flow from the first water outlet; L2, the direction of water flow from the second water outlet;

[0044] X represents the horizontal direction; Y represents the vertical direction; and Z represents the vertical direction. Detailed Implementation

[0045] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0049] For ease of understanding, it should be noted that in the coordinate system of the figure, the X-axis is horizontal, the Y-axis is vertical, the Z-axis is vertical, the dashed line with arrows is the direction of water outflow, and the dashed line is the water flow.

[0050] Example 1:

[0051] Please see Figures 1-4 This embodiment provides a polishing device 100 for polishing the surface of a jade piece 200, which includes a worktable 1 and a polishing component 2, a power component 3 and a water tank 4 disposed on the worktable 1.

[0052] Specifically, the workbench 1 includes a defined working area 11, which is the hand operation area for polishing jade. The polishing assembly 2 includes a support 21, a grinding wheel 22, and a water-retaining and guiding cover 23. The support 21 is fixed to one side of the working area 11 in the horizontal direction X. In this embodiment, the support 21 is located on the left side of the working area 11 in the horizontal direction X. The support 21 generally has a rotating shaft 211 and a bearing inside, and the axis of the rotating shaft 211 is parallel to the horizontal direction X. The grinding wheel 22 is located in the working area 11 and is rotatably mounted on the support 21 via the rotating shaft 211. The water-retaining and guiding cover 23 is fixed to the support 21 and partially surrounds the circumference of the grinding wheel 22. More specifically, the water-retaining and guiding cover 23 mainly surrounds the upper semicircle of the grinding wheel 22 in the height direction Z.

[0053] The power assembly 3 is driven by the support 21 and drives the grinding wheel 22 to rotate. In this embodiment, the power assembly 3 consists of a drive motor 31, a pulley, and a belt 32. The drive motor 31 is fixed to the worktable 1 and drives the pulley and belt 32 to drive the other end of the rotating shaft 211, thereby driving the grinding wheel 22 to rotate. In other embodiments, transmission can also be achieved by using sprockets, chains, gear sets, etc.

[0054] Water tank 4 is used to store, filter, and supply cooling water 43, and is generally located at the bottom of workbench 1. Water tank 4 includes an inlet port 42 and an outlet port 41. Used cooling water 43 is directed to the inlet port 42, which is often equipped with coarse filter elements such as filter cotton or mesh. The outlet port 41 has an output connector 411, which pumps the filtered cooling water 43 from water tank 4 through an internal pressure system such as a pressure pump, and then delivers it to the required location via hydraulic lines 234.

[0055] In this embodiment, such as Figure 3 As shown, the water-blocking and guiding cover 23 has a first water outlet 231 and a second water outlet 232 on the side facing the circumference of the grinding wheel 22. More specifically, the first water outlet 231 and the second water outlet 232 are located above the grinding wheel 22 in the height direction Z. At the end away from the grinding wheel 22, the first water outlet 231 and the second water outlet 232 are respectively connected to the water outlet port 41 through hydraulic lines 234. Therefore, the water outlet port 41 also has at least two output connectors 411. Figures 3-4 As shown, the water outlet direction L1 of the first water outlet 231 passes through the rotation center O of the grinding wheel 22. Cooling water 43 gushing from the first water outlet 231 is sprayed in large quantities onto the outer peripheral surface 221 of the grinding wheel 22 under the action of gravity and pump pressure. Since the water outlet direction L1 of the first water outlet 231 passes through the rotation center O of the grinding wheel 22, the grinding wheel 22 does not need to consider its rotation direction or the specific grinding surface during processing. This ensures that the contact surface between the jade part 200 and the grinding wheel 22 receives sufficient cooling water 43 to carry away cutting heat and some jade powder.

[0056] During the polishing process, some jade powder combines with cooling water 43 to form a jade powder slurry. Because the jade part 200 is subjected to significant external force during processing, the jade powder slurry adheres to the outer peripheral surface 221 of the grinding wheel 22. It is difficult to thoroughly clean the jade powder slurry using only the cooling water 43 ejected from the first water outlet 231. To solve this problem, the water outlet direction L2 of the second water outlet 232 is tangential to the outer peripheral surface 221 of the grinding wheel 22. The cooling water 43 ejected from the second water outlet 232 generates a tangential force on the outer peripheral surface 221 of the grinding wheel 22. When the rotational tangential direction of the outer peripheral surface 221 of the grinding wheel 22 is opposite to the direction of this tangential force, the cooling water 43 ejected from the second water outlet 232 has a large scouring force, causing the jade powder slurry adhering to the outer peripheral surface 221 to detach from the surface of the grinding wheel 22, thus achieving rapid cleaning of the grinding wheel 22 surface.

[0057] Cooling water 43 is sprayed out through the first water outlet 231 and the second water outlet 232. While ensuring sufficient cooling water 43 is supplied during jade polishing, the grinding wheel 22 can also be quickly cleaned, thereby improving polishing quality and efficiency. The first and second water outlets 231 and 232 are located inside the water-blocking and guiding cover 23. Under the obstruction of the water-blocking and guiding cover 23, the pressure and flow rate of the first and second water outlets 231 and 232 do not affect the jade polishing process. That is, while the outer circumferential surface 221 of the grinding wheel 22 is cleaned, the worker is also prevented from being splashed by the cooling water 43, improving comfort and ease of observation during processing.

[0058] Continue reading Figures 1-4 In some embodiments, the workbench 1 further defines an operating station 12, located on one side of the longitudinal direction Y of the work area 11. The jade polishing operator sits or stands on the operating station 12, reaching into the work area 11 to polish the jade piece 200. Viewed from the operating station 12, the outer peripheral surface 221 of the grinding wheel 22 rotates from top to bottom. Cooling water 43 from the first water outlet 231 gently follows the outer peripheral surface 221 to one side of the operating station 12. The jade piece 200 is placed below in the height direction Z and is in contact with the grinding wheel 22. To further prevent the cooling water 43 from splashing and improve the clarity of observation during processing, a second water outlet 232 is located on the side of the first water outlet 231 away from the operating station 12, and the water outlet direction L2 of the second water outlet 232 is away from the operating station 12.

[0059] Although the above-mentioned arrangement has prevented most of the cooling water 43 gushing from the second water outlet 232 from splashing, considering that the cooling water 43 may require greater pressure, it is still possible for the cooling water 43 to splash from below the grinding wheel 22 to the polishing position of the jade part 200. A baffle plate 233 is provided on the water outlet direction L2 of the second water outlet 232. The angle between the baffle plate 233 and the water outlet direction L2 of the second water outlet 232 on one side of the grinding wheel 22 is α, which satisfies the formula: α≤85°. The cooling water 43 exiting from the second water outlet 232 continues to flow downwards after washing the outer peripheral surface 221 of the grinding wheel 22 until it hits the baffle plate 233. The cooling water 43 rebounds and slows down along the plane of the baffle plate 233, with most of it splashing or gushing out from the side away from the operating station 12, significantly reducing the amount of cooling water 43 splashing from the bottom to the processing position of the jade part 200.

[0060] Please Figures 1-4 Based on this, refer to Figure 5 Furthermore, the cross-sectional area of ​​the first water outlet 231 is larger than that of the second water outlet 232, thus ensuring that the jet pressure of the first water outlet 231 is lower than that of the second water outlet 232. To ensure uniform cleaning of the outer circumferential surface 221 of the grinding wheel 22, the second water outlet 232 is an arc-shaped hole, thus accommodating the different curvatures of the outer circumferential surface 221 of the grinding wheel 22.

[0061] In some embodiments, the cooling water 43 contained in the water tank 4 is pumped out through the outlet port 41. Before pumping, the cooling water 43 supplied to the first outlet port 231 and the second outlet port 232 has different output modes. The first outlet port 231 continuously pours a large amount of cooling water 43 towards the grinding wheel 22, so the pumped coolant only needs to meet the flow rate requirement, and the requirements for flow rate and pressure are low. However, in order to improve the cleaning effect on the outer peripheral surface 221 of the grinding wheel 22, the second outlet port 232 needs to use an intermittent high-speed jet of cooling water 43 towards the grinding wheel 22. The intermittent jet of cooling water 43 can release a greater impact force instantly, improving the ability to wash away jade powder. At this time, the outlet port 41 connected to the second outlet port 232 needs to be equipped with a water pump with a large output pressure and control components such as a solenoid valve to control the on and off of the output inside the water tank 4. Of course, there are many control methods inside the outlet port 41 of the water tank 4, which will not be described in detail here.

[0062] In summary, the polishing device provided by this utility model has a first water outlet that primarily outputs cooling water to cool the polished jade surface, which is then evenly poured onto the grinding wheel. The second water outlet, with its water outlet direction tangential to the outer circumference of the grinding wheel, outputs cooling water used to clean jade powder adhering to the grinding wheel surface. The first and second water outlets are connected to separate water outlet ports, allowing for independent control of both. This ensures sufficient cooling water supply during jade polishing while also quickly cleaning the grinding wheel surface, improving polishing quality and efficiency.

[0063] Secondly, both the first and second water outlets are located on the side of the water-blocking and water-guiding cover facing the circumference of the grinding wheel. Regardless of the pressure and flow rate of the first and second water outlets, it can ensure that the processing personnel are not splashed by cooling water during the jade polishing process, thereby improving the comfort and observation convenience of the processing personnel.

[0064] Example 2:

[0065] This embodiment provides a polishing device 100, which is structurally optimized based on Embodiment 1. Please refer to... Figures 1-5 Based on this, refer to Figures 6-7 The grinding device 100 described in this embodiment differs from that in embodiment 1 in that the worktable 1 is provided with a transition water tank 13, which is located at the lower end of the grinding wheel 22 in the height direction Z. The transition water tank 13 is provided with an overflow hole 131, which is connected to the water tank 4.

[0066] In a traditional jade polishing workbench 1, to simplify the structure, a water tank is provided to collect used cooling water 43 and return it to the water tank 4 for filtration. However, during the polishing process, in order to clearly see the polishing effect of the jade piece 200, it is often necessary to clean the polished jade piece 200. If the polishing device 100 in Embodiment 1 is used, it may be necessary to add a separate water spray nozzle to the workbench 1, but this undoubtedly increases the structure, size, and cost of the water tank 4. If cleaning is performed directly under the grinding wheel 22 by the cooling water 43 sprayed from the first water outlet 231 or the second water outlet 232, there are operational safety risks.

[0067] In this embodiment, the workbench 1 is equipped with a transition water tank 13, which stores a certain amount of cooling water 43. After the jade piece 200 is polished, it can be held by hand and cleaned and wiped in the transition water tank 13 before being observed, thereby avoiding operational risks and reducing the cost of the water tank 4.

[0068] An overflow hole 131 is installed at the highest water level of the transition water tank 13. The cooling water 43 overflowing from the overflow hole 131 is connected to the water inlet port 42 of the water tank 4 through a pipeline, completing the filtration and circulation of the cooling water 43. At the same time, the transition water tank 13 actually performs a coarse sedimentation of the used cooling water 43, thereby reducing the amount of impurities flowing into the water tank 4 and extending the service life of the water tank 4.

[0069] In a further embodiment, the bottom of the transition water tank 13 is gradually inclined downwards along the longitudinal direction Y towards the side away from the operating station 12. This creates a larger space in the direction of the operating station 12, making it easier to accommodate the legs of the processing personnel. In addition, the inclined bottom of the transition water tank 13 will concentrate and accumulate the precipitated jade powder, making it easier to drain the transition water tank 13 during the cleaning process.

[0070] In some embodiments, an ultrasonic cleaning device 5 can also be installed inside the transition water tank 13. After the jade has undergone grinding and polishing processes, it can be directly cleaned inside the ultrasonic cleaning device 5. This eliminates the need for a separate ultrasonic cleaning station, thereby improving space utilization. Furthermore, the space for the ultrasonic cleaning device 5 can be interconnected with the transition water tank 13, allowing for the sharing of cooling water 43.

[0071] Example 3:

[0072] This embodiment, based on Embodiments 1 and 2, proposes a polishing device 100. Please refer to the following: Figures 1-7 On the basis of, participate Figures 8-10 This embodiment, based on Embodiments 1 and 2, further includes a protective cover 14 fixed to the workbench 1. The protective cover 14 encloses the work area 11 and has an observation window 141 for observing the processing and an operating hole 142 for processing operations on the side facing the operating station 12. With the addition of the protective cover 14, the processing personnel can put their hands into the operating hole 142 and complete the jade polishing through the observation window 141. This ensures that, except for the hands, other parts of the processing personnel's body will not be contaminated by splashing cooling water 43.

[0073] Meanwhile, the high-speed jet of cooling water 43 will generate water vapor, and during the polishing of the jade piece 200, dry polishing inevitably occurs, resulting in jade powder floating in the air. These two contaminants will remain inside the protective cover 14, preventing inhalation by the workers and protecting their health. In case of emergencies, such as if the jade piece 200 is not properly held and is ejected at high speed along with the grinding wheel 22, the protective cover 14 can also block the ejected jade piece 200, protecting the safety of the workers.

[0074] In some embodiments, the protective cover 14 further includes an auxiliary observation component 143, which includes a magnifying glass 1431 and a support frame 1432. The magnifying glass 1431 is disposed on the outer side of the observation window 141 away from the work area 11. The support frame 1432 is slidably disposed on the protective cover 14, with one end fixedly connected to the magnifying glass 1431 and the other end passing through the protective cover 14 into the work area 11. During the polishing of smaller jade pieces 200, due to the space limitation of the protective cover 14, it is impossible to get close to the jade piece 200 for observation. Moving the jade piece 200 to the observation window 141 by hand may be slightly inconvenient. With the magnifying glass 1431, the worker can observe the polishing of the tiny jade piece 200 inside the protective cover 14 through the magnifying glass 1431. The other end of the support frame 1432 extends into the protective cover 14, making it convenient for the worker to move the position of the magnifying glass 1431 during the processing.

[0075] Normally, the observation window 141 is equipped with a highly transparent and impact-resistant glass or acrylic plate. However, during the polishing process, even with sufficient cooling water 43 and a reasonable spray direction, jade powder and jade slurry inevitably float and splash onto the observation window 141, obstructing the view. Therefore, in a further embodiment, the protective cover 14 includes a cleaning scraper 144, which is attached to the side of the observation window 141 away from the magnifying glass 1431, with one end of the cleaning scraper 144 rotatably mounted on the observation window 141. By driving the cleaning scraper 144, jade powder and jade slurry splashed or stuck to the inside of the observation window 141 are periodically scraped away from the observation position.

[0076] In other embodiments, the protective cover 14 further includes a storage box 145, which is inserted through the side of the protective cover 14 facing the operating station 12. The storage box 145 includes a storage space 1451 through which the jade pieces 200 can be transferred from inside the protective cover 14 to outside the protective cover 14. In this embodiment, the storage box 145 passes through the lower end of the observation window 141 and can move inside and outside the protective cover 14. Before polishing, the storage box 145 is pulled out of the protective cover 14, so that the storage space 1451 is connected to the outside of the protective cover 14. The jade pieces 200 to be processed are placed one by one into the storage space 1451. After placement, the storage box 145 is pushed into the protective box. At this time, the operator's hand can reach into the operating hole 142 and grasp the jade pieces 200 to be processed for polishing. The finished jade pieces 200 can also be placed in the storage space 1451. After all the jade pieces have been processed, the worker can remove their hands from the operating hole 142 and then pull out the storage box 145 to take out all the processed jade pieces 200.

[0077] The protective cover 14 with storage box 145 does not need to be opened frequently during daily use, thereby further limiting the spread of pollutants from the work area 11 to the outside and protecting the working environment.

[0078] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. A polishing device for polishing a surface of a piece of jade, characterized in that, include: A workbench (1) includes a defined work area (11); The grinding assembly (2) includes a support (21), a grinding wheel (22), and a water-blocking and guiding cover (23). The support (21) is fixed to the transverse (X) side of the working area (11). The grinding wheel (22) is located in the working area (11) and is rotatably mounted on the support (21). The water-blocking and guiding cover (23) is fixed on the support (21) and partially surrounds the circumference of the grinding wheel (22). A power assembly (3) is driven to the support (21) and drives the grinding wheel (22) to rotate; and A water tank (4) is placed at the bottom of the workbench (1) and includes a water outlet (41); The water-blocking and water-guiding cover (23) is provided with a first water outlet (231) and a second water outlet (232) on the side facing the circumference of the grinding wheel (22). The first water outlet (231) and the second water outlet (232) are respectively connected to the water outlet port (41). The water outlet direction of the first water outlet (231) passes through the rotation center of the grinding wheel (22), and the water outlet direction of the second water outlet (232) is tangent to the outer peripheral surface (221) of the grinding wheel (22).

2. The polishing device according to claim 1, characterized in that, The workbench (1) is further defined with an operating station (12), which is located on one side of the longitudinal (Y) direction of the work area (11); the second water outlet (232) is located on the side of the first water outlet (231) away from the operating station (12), and the water outlet direction of the second water outlet (232) is away from the operating station (12).

3. The sharpening device of claim 2, wherein, In the water outlet direction of the second water outlet (232), the water-blocking and water-guiding cover (23) is provided with a baffle plate (233). The baffle plate (233) and the water outlet direction of the second water outlet (232) are at an angle α on one side of the grinding wheel (22). Then α satisfies the formula: α≤85°.

4. The sharpening device of claim 3, wherein, The cross-sectional area of ​​the first water outlet (231) is larger than that of the second water outlet (232); the second water outlet (232) is an arc-shaped hole.

5. The sharpening device of claim 2, wherein, The water tank (4) contains cooling water (43), the first water outlet (231) pours the cooling water (43) into the grinding wheel (22) in large quantities and continuously, and the second water outlet (232) sprays the cooling water (43) into the grinding wheel (22) at high speed intermittently.

6. The sharpening device of claim 2, wherein, The workbench (1) is provided with a transition water tank (13), which is located at the lower end of the grinding wheel (22) in the height direction (Z). The transition water tank (13) is provided with an overflow hole (131), which is connected to the water tank (4).

7. The sharpening device of claim 2, wherein, Includes a protective cover (14) fixed on the workbench (1), the protective cover (14) encloses the work area (11), and has an observation window (141) for processing observation and an operation hole (142) for processing operation on the side facing the operation station (12).

8. The sharpening device of claim 7, wherein, The protective cover (14) includes an auxiliary observation component (143), which includes a magnifying glass (1431) and a support frame (1432). The magnifying glass (1431) is located on the outside of the observation window (141) away from the working area (11). The support frame (1432) is slidably mounted on the protective cover (14), with one end fixedly connected to the magnifying glass (1431) and the other end passing through the protective cover (14) into the working area (11).

9. The sharpening device of claim 8, wherein, The protective cover (14) includes a cleaning scraper (144), which is attached to the side of the observation window (141) away from the magnifying glass (1431), and one end of the cleaning scraper (144) is rotatably mounted on the observation window (141).

10. The sharpening device of claim 7, wherein, The protective cover (14) also includes a storage box (145), which is installed on the side of the protective cover (14) facing the operating station (12). The storage box (145) includes a storage space (1451), through which the jade piece can be transferred from inside the protective cover (14) to outside the protective cover (14).

Images