Edge grinding device for stainless steel tableware processing
The improved edge grinding device uses positive and negative threaded rods and a servo motor to clamp the stainless steel cutter. Combined with the design of a filter woven mesh plate, it solves the problems of unstable grinding and cleaning blockage, and achieves efficient grinding and cleaning results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIEYANG MEIKALUN HARDWARE IND CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-05
AI Technical Summary
Existing stainless steel tableware polishing devices are unstable during the clamping process, resulting in inconsistent polishing quality. They are also prone to clogging during cleaning, making it difficult to quickly remove debris.
It employs a combination of positive and negative threaded rods, a moving plate, an edge grinding mechanism, and a servo motor to hold stainless steel cutters, while using silicone pads to improve stability; and utilizes a filter woven mesh and pull-out handle design to achieve debris filtration and rapid cleaning.
It achieves stability and high quality in the stainless steel tool grinding process, avoids the laborious manual handling, and ensures a smooth cleaning process and rapid removal of debris.
Smart Images

Figure CN224196511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel tableware processing technology, specifically to an edge grinding device for processing stainless steel tableware. Background Technology
[0002] Stainless steel tableware is made of iron-chromium alloy with other trace elements. Due to its beauty, durability, and corrosion resistance, it is widely used in the manufacture of tableware, including stainless steel knives and spoons. After the production of stainless steel knives, their edges need to be polished to remove burrs, weld slag, oxide scale, and other imperfections, making them smoother. The existing technology has the following problems:
[0003] Chinese patent document CN215967916U discloses a rough edge polishing device for stainless steel tableware processing, comprising a box body, a water tank, and a waste liquid collection box arranged sequentially from top to bottom; a through hole is provided in the middle of the box body, and a first groove is provided on the box body to connect with the through hole; a sliding track is provided between the cavity and the first groove; inside the first groove, a first support block, a polishing wheel, and a second support block are arranged sequentially from top to bottom. After the operator holds the tableware or the machine clamps the tableware, the tableware is placed downwards into the through hole. The polishing wheel polishes the rough edges on the side of the tableware, and the polishing head polishes the rough edges on the front and back of the tableware. The polishing effect is good, the accuracy is high, and the polishing surface coverage is wide. It is also suitable for tableware of different specifications or shapes. During polishing, water is sprayed to clean the polishing wheel and polishing head to avoid the situation where the polishing effect is reduced due to unclean polishing wheel or polishing head surfaces; wastewater enters into the waste liquid collection box, which can be disassembled and cleaned periodically.
[0004] While the aforementioned literature allows for simultaneous grinding of both sides and top and bottom of stainless steel knives, in actual use, the grinding wheels on the two first and second support blocks rely on springs to clamp the sides of the stainless steel knife, while the bottom is ground by the grinding head. The lateral force applied by the grinding head to the knife causes one grinding wheel on one side to be squeezed to one side, resulting in the other side of the knife being unable to stably perform the grinding work, affecting the grinding quality. Only by manually applying force to hold the knife can its position be kept unchanged, making the grinding process quite laborious. Furthermore, it is difficult to ensure the correct hand position, resulting in poor consistency in grinding quality. In addition, the wastewater generated during the cleaning process in the aforementioned literature is directly discharged into the waste liquid collection box. However, since stainless steel tableware generates a large amount of debris during grinding, it easily clogs the perforated plate or drain hole when mixed with wastewater, preventing wastewater from flowing into the waste liquid collection box. Cleaning the blockage is also laborious and cannot be done quickly. Utility Model Content
[0005] This utility model provides a grinding device for processing stainless steel tableware, in order to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A grinding device for processing stainless steel tableware includes a grinding box. The inner cavity of the grinding box is equipped with a first grinding mechanism. Second grinding mechanisms are located on the upper left and right sides of the first grinding mechanism. A cleaning water tank is fixedly installed on the right side of the grinding box. A through groove is formed on the rear side of the grinding box, and a clamping drive box is fixedly installed inside the through groove. A drive slide groove extending into the inner cavity of the grinding box is formed at the front end of the clamping drive box. A servo motor is fixedly installed on the left side of the clamping drive box. The output shaft of the first grinding mechanism is fixedly mounted with a positive and negative threaded rod. The outer walls of the positive and negative threaded rods are respectively provided with threaded walls with opposite threads on the left and right sides. The outer walls of the two threaded walls are threaded with movable plates. The upper and lower sides of the movable plates overlap with the upper and lower sides of the inner walls of the drive slide. The first grinding mechanism includes a second servo motor. The fixed end of the second servo motor is fixedly mounted on the rear side of the grinding box and located below the clamping drive box. The output shaft of the second servo motor passes through the inner cavity of the grinding box and is fixedly mounted with a first grinding wheel.
[0008] A further improvement of the present invention is that: both of the two edge grinding mechanisms include a gate-shaped plate, the rear vertical sides of the two gate-shaped plates are respectively fixedly installed on the top front side of the two movable plates, the bottom of the front vertical sides of the two gate-shaped plates are fixedly installed with an L-shaped positioning plate, the opposite surfaces of the two L-shaped positioning plates are fixedly installed with a tool clamping plate, and the opposite surfaces of the two tool clamping plates are fixedly installed with a silicone pad.
[0009] A further improvement of this utility model is that: spring compartments are provided at the bottom of both of the two portal plates, and sliding rods are fixedly installed between the left and right sides of the inner walls of the two spring compartments. L-shaped hanging plates are slidably installed on the outer walls of the two sliding rods, and springs are fixedly installed on the opposite sides of the two L-shaped hanging plates. The springs are located on the outside of the sliding rods.
[0010] A further improvement of this utility model is that: an L-shaped bracket is fixedly installed at the bottom of the horizontal position of each of the two L-shaped hanging plates; a servo motor three is fixedly installed at the opposite ends of the horizontal position of each of the two L-shaped brackets; a grinding wheel two is fixedly installed on the output shaft of each of the two servo motor threes; and the distance between the two grinding wheels two is less than the distance between the two silicone pads.
[0011] A further improvement of this utility model is that: a water pump is fixedly installed on the top of the cleaning water tank, a water supply pipe is fixedly connected to the front side of the cleaning water tank and passes through its inner cavity, the input end of the water pump passes through the inner cavity of the cleaning water tank, the output end of the water pump is fixedly connected to a water supply pipe, and the other end of the water supply pipe is located above the first grinding wheel.
[0012] A further improvement of this utility model is that: a front baffle is fixedly installed on the front side between the left and right sides of the inner wall of the grinding box; the front baffle has a through slot; slots are provided on the left, right and rear sides of the inner wall of the grinding box; the front ends of the slots on the left and right sides extend to the front side of the grinding box; the slot is interconnected with the two slots on the left and right sides; a snap-fit frame is snapped into the inner side of the slot and the groove; a filter woven mesh is fixedly installed on the inner ring of the snap-fit frame; a pull handle is fixedly installed on the front side of the snap-fit frame; and the filter woven mesh is located below the first grinding wheel.
[0013] A further improvement of this utility model is that a drain pipe is fixedly connected to the lower left side of the grinding box, and an electrically controlled valve is provided on the outer wall of the drain pipe.
[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0015] 1. This utility model provides a grinding device for processing stainless steel tableware. Through the cooperation between the positive and negative threaded rods, the moving plate, the first grinding mechanism and the second grinding mechanism, the stainless steel knife does not need to be manually held during grinding, which ensures the stability of the knife during grinding, improves the grinding quality, and saves manpower.
[0016] 2. This utility model provides a grinding device for processing stainless steel tableware. Through the cooperation between the front baffle, the slot, the snap-fit frame, the filter woven mesh plate, the pull handle, and the drain pipe, the wastewater mixed with debris generated during grinding can be discharged after filtration. At the same time, the filtered debris can be quickly cleaned to avoid clogging and ensure the stability of clean wastewater discharge. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional schematic diagram of the clamping drive box of this utility model.
[0019] Figure 3 This is a schematic diagram of the second edge grinding mechanism of this utility model;
[0020] Figure 4This is a schematic diagram of the cleaning water storage tank of this utility model.
[0021] Figure 5 This is a schematic diagram of the snap-fit frame of this utility model in the pulled-out state.
[0022] In the diagram: 1. Grinding box; 11. Through slot; 12. Clamping drive box; 121. Drive slide; 122. Servo motor one; 123. Positive and negative threaded rod; 124. Moving plate; 13. Front baffle; 131. Slot; 14. Card slot; 141. Snap-fit frame; 142. Filter woven mesh plate; 143. Pull-out handle; 15. Drain pipe; 151. Electric control valve; 2. Edge grinding mechanism one; 21 1. Servo motor II; 22. Grinding wheel I; 3. Edge grinding mechanism II; 31. Door-shaped plate; 32. Spring housing; 33. Slide rod; 34. L-shaped hanging plate; 35. Spring; 36. L-shaped bracket; 37. Servo motor III; 38. Grinding wheel II; 39. L-shaped positioning plate; 391. Tool clamp; 392. Silicone pad; 4. Cleaning water tank; 41. Water pump; 42. Water supply pipe; 43. Water filling pipe. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand
[0024] Understood. The present invention will now be further described in conjunction with specific implementation methods.
[0025] like Figure 1 , Figure 2 As shown, this utility model provides a grinding device for processing stainless steel tableware, including a grinding box 1. A grinding mechanism 2 is installed inside the grinding box 1. Grinding mechanisms 3 are installed on the upper left and right sides of the grinding mechanism 2. A cleaning water tank 4 is fixedly installed on the right side of the grinding box 1. A through groove 11 is opened on the rear side of the grinding box 1, and a clamping drive box 12 is fixedly installed inside the through groove 11. A drive slide groove 121 extending into the inner cavity of the grinding box 1 is opened at the front end of the clamping drive box 12. A servo motor 122 is fixedly installed on the left side of the clamping drive box 12. The servo motor 122 is powered by an external power supply via wires. The output shaft of the first machine 122 is fixedly installed with a positive and negative threaded rod 123. The outer walls of the positive and negative threaded rod 123 are respectively provided with threaded walls with opposite threads on the left and right sides. The outer walls of the two threaded walls are threaded with a movable plate 124. The upper and lower sides of the movable plate 124 overlap with the upper and lower sides of the inner wall of the drive slide 121 respectively. The first grinding mechanism 2 includes a second servo motor 21. The second servo motor 21 is powered by an external power supply through a wire. The fixed end of the second servo motor 21 is fixedly installed on the rear side of the grinding box 1 and located below the clamping drive box 12. The output shaft of the second servo motor 21 passes through the inner cavity of the grinding box 1 and is fixedly installed with a first grinding wheel 22.
[0026] The central axis of the positive and negative threaded rod 123 is aligned with the center of the grinding wheel 22. In use, the stainless steel tool is placed horizontally and vertically on the grinding wheel 22, and then the servo motor 122 on the left side of the clamping drive box 12 is started to drive the positive and negative threaded rod 123 in the drive slide 121 to rotate. The two edge grinding mechanisms 23 are driven to move closer to each other by the threaded connection between the opposite threaded walls on the left and right sides of the outer wall of the positive and negative threaded rod 123 and the threaded connection with the moving plate 124, which facilitates the quick clamping of the stainless steel tool.
[0027] like Figure 3 As shown, both edge grinding mechanisms 3 include a portal plate 31. The rear vertical sides of the two portal plates 31 are respectively fixedly installed on the top front side of the two movable plates 124. L-shaped positioning plates 39 are fixedly installed at the bottom of the front vertical sides of both portal plates 31. Tool clamping plates 391 are fixedly installed on the opposite surfaces of the two L-shaped positioning plates 39. Silicone pads 392 are fixedly installed on the opposite surfaces of the two tool clamping plates 391. Spring chambers 32 are opened at the bottom of both portal plates 31. Slide rods 33 are fixedly installed between the left and right sides of the inner walls of the two spring chambers 32. L-shaped hanging plates 34 are slidably installed on the outer wall of the slide rod 33. Springs 35 are fixedly installed on the opposite sides of the two L-shaped hanging plates 34. The springs 35 are located on the outside of the slide rod 33. L-shaped brackets 36 are fixedly installed at the bottom of the horizontal position of the two L-shaped hanging plates 34. Servo motors 37 are fixedly installed at the opposite ends of the horizontal position of the two L-shaped brackets 36. The servo motors 37 are powered by an external power supply through wires. Grinding wheels 38 are fixedly installed on the output shafts of the two servo motors 37. The distance between the two grinding wheels 38 is less than the distance between the two silicone pads 392.
[0028] When the two edge grinding mechanisms 3 approach each other, the gantry plate 31 will cause the L-shaped positioning plate 39 and the tool clamping plates 391 on opposite sides of the two L-shaped positioning plates 39 to approach each other, clamping the tool handle. The silicone pad 392 is used to improve clamping stability. Since the distance between the two grinding wheels 38 is less than the distance between the two tool clamping plates 391, while the two tool clamping plates 391 are clamping the tool handle, the two grinding wheels 38 will press against the left and right sides of the tool, causing the servo motor 37 to press against the L-shaped bracket 36 and the L-shaped hanging plate 34. The vertical part of the L-shaped hanging plate 34 slides outward on the outer wall of the slide rod 33 inside the spring chamber 32, and squeezes the spring 35. The elastic force of the spring 35 can make the two grinding wheels 38 stick to the left and right sides of the blade surface. At this time, the servo motor 37 and servo motor 21 can be started, thereby driving the grinding wheel 38 to grind the blade surface and driving the grinding wheel 22 to grind the bottom of the blade. Similarly, after the blade surface and the bottom are ground, the blade handle can be placed on the top of the grinding wheel 22 and the above steps can be repeated to clamp the blade surface and then clamp and grind the handle.
[0029] like Figure 4 , Figure 5 As shown, a water pump 41 is fixedly installed on the top of the cleaning water tank 4. A water inlet pipe 43 is fixedly connected to the front of the cleaning water tank 4, penetrating its inner cavity. The input end of the water pump 41 extends into the inner cavity of the cleaning water tank 4, and the output end of the water pump 41 is fixedly connected to a water delivery pipe 42. The other end of the water delivery pipe 42 is located above the grinding wheel 22. A front baffle 13 is fixedly installed on the front side between the left and right sides of the inner wall of the grinding box 1. The front baffle 13 has a slot 131 that extends from front to back. The left, right, and rear sides of the inner wall of the grinding box 1 all have slots 14, and the left side... The front ends of the right two slots 14 extend to the front of the grinding box 1. The slot 131 is connected to the two slots 14 on the left and right sides. The inner side of the slot 14 and the slot 131 is engaged with a snap-fit frame 141. A filter woven mesh plate 142 is fixedly installed on the inner ring of the snap-fit frame 141. A pull handle 143 is fixedly installed on the front side of the snap-fit frame 141. The filter woven mesh plate 142 is located below the grinding wheel 22. A drain pipe 15 that passes through its inner cavity is fixedly connected to the lower left side of the grinding box 1. An electric control valve 151 is provided on the outer wall of the drain pipe 15.
[0030] While the blade is being sharpened, the water pump 41 at the top of the cleaning water tank 4 can be activated to extract the water that has been added to the inner cavity of the cleaning water tank 4 in advance through the water inlet pipe 43. The water then flows slowly through the water delivery pipe 42 to the stainless steel blade being sharpened above the grinding wheel 22, preventing dust from splashing and reducing the grinding temperature. The wastewater mixed with debris falls directly onto the filter woven mesh plate 142. After the debris is filtered by the filter woven mesh plate 142, the wastewater flows below the filter woven mesh plate 142. The wastewater can be drained by opening the electric control valve 151. The filter is discharged through pipe 15. When it is necessary to clean the debris filtered on the woven mesh plate 142, simply pull out the snap-fit frame 141 forward using the pull handle 143. During installation, align the snap-fit frame 141 with the left and right side slots 14 and the slot 131 and push it backward until the rear end of the snap-fit frame 141 is inserted into the rear slot 14 and the front end is aligned with the front side of the front baffle 13. The filtration work can then continue. Since the top of the woven mesh plate 142 is lower than the top of the snap-fit frame 141, there is no need to worry about scraping debris when pulling out the snap-fit frame 141.
[0031] The working principle of the edge grinding device used in the processing of stainless steel tableware will be explained in detail below.
[0032] like Figure 1-5As shown, in use, the stainless steel tool is placed horizontally and vertically on the grinding wheel 22. Then, the servo motor 122 on the left side of the clamping drive box 12 is started, which drives the positive and negative threaded rod 123 in the drive slide 121 to rotate. The opposite threaded walls on the left and right sides of the outer wall of the positive and negative threaded rod 123 are connected to the threaded connection of the moving plate 124, which drives the two gate-shaped plates 31 to move closer together. When they move closer together, the L-shaped positioning plate 39 and the tool clamping plates 391 on the opposite sides of the two L-shaped positioning plates 39 will move closer together, clamping the tool handle. The silicone pad 392 is used to improve the clamping stability. Since the distance between the two grinding wheels 38 is less than two... The distance between the two tool clamps 391 is such that while the two tool clamps 391 are holding the tool holder, the two grinding wheels 38 will be pressed against the left and right sides of the tool face. This will cause the servo motor 37 to press against the L-shaped bracket 36 and the L-shaped hanging plate 34, causing the vertical part of the L-shaped hanging plate 34 to slide outward on the outer wall of the slide rod 33 in the spring chamber 32, and press against the spring 35. The elastic force of the spring 35 can make the two grinding wheels 38 press against the left and right sides of the tool face. At this time, the servo motor 37 and servo motor 21 can be activated, thereby driving the grinding wheels 38 to grind the tool face and driving the grinding wheel 22 to grind the bottom of the tool. Similarly, after grinding the blade face and bottom, the handle of the tool can be placed on top of the grinding wheel 22. The blade face is then clamped, and the handle is also clamped and ground. Simultaneously, the water pump 41 at the top of the cleaning water tank 4 can be activated to extract water that has been pre-filled into the tank via the water inlet pipe 43. This water then flows slowly through the water delivery pipe 42 to the stainless steel tool being ground above the grinding wheel 22, preventing dust from splashing and reducing the grinding temperature. The wastewater mixed with debris falls directly onto the woven filter screen 142, where it filters the debris before flowing into the water. Below the filter woven mesh plate 142, wastewater can be discharged from the drain pipe 15 by opening the electric control valve 151. When it is necessary to clean the filtered debris on the filter woven mesh plate 142, simply pull out the snap-fit frame 141 forward using the pull handle 143. During installation, align the snap-fit frame 141 with the left and right side slots 14 and the slot 131 and push it backward until the rear end of the snap-fit frame 141 is inserted into the rear slot 14 and the front end is aligned with the front side of the front baffle 13 to continue the filtration work. Since the top of the filter woven mesh plate 142 is lower than the top of the snap-fit frame 141, there is no need to worry about scraping debris when pulling out the snap-fit frame 141.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A grinding device for processing stainless steel tableware, comprising a grinding box (1), characterized in that: The inner cavity of the grinding box (1) is provided with a first edge grinding mechanism (2). The upper left and right sides of the first edge grinding mechanism (2) are provided with second edge grinding mechanisms (3). A cleaning water tank (4) is fixedly installed on the right side of the grinding box (1). A through groove (11) is opened on the rear side of the grinding box (1). A clamping drive box (12) is fixedly installed on the inner side of the through groove (11). A drive slide groove (121) is opened at the front end of the clamping drive box (12) and extends into the inner cavity of the grinding box (1). A servo motor (122) is fixedly installed on the left side of the clamping drive box (12). The output shaft of the servo motor (122) is fixedly installed on the left side of the clamping drive box (12). The device is equipped with a positive and negative threaded rod (123). The outer walls of the positive and negative threaded rod (123) are respectively provided with threaded walls with opposite threads on the left and right sides. The outer walls of the two threaded walls are threaded with movable plates (124). The upper and lower sides of the movable plates (124) overlap with the upper and lower sides of the inner walls of the drive slide (121). The first grinding mechanism (2) includes a second servo motor (21). The fixed end of the second servo motor (21) is fixedly installed on the rear side of the grinding box (1) and located below the clamping drive box (12). The output shaft of the second servo motor (21) passes through the inner cavity of the grinding box (1) and is fixedly installed with a first grinding wheel (22).
2. The edge-grinding device for processing stainless steel tableware according to claim 1, characterized in that: Both of the two edge grinding mechanisms (3) include a gate plate (31). The rear vertical side of the two gate plates (31) is fixedly installed on the top front side of the two movable plates (124). The bottom of the front vertical side of the two gate plates (31) is fixedly installed with an L-shaped positioning plate (39). The opposite surfaces of the two L-shaped positioning plates (39) are fixedly installed with a tool clamping plate (391). The opposite surfaces of the two tool clamping plates (391) are fixedly installed with a silicone pad (392).
3. The edge-grinding device for processing stainless steel tableware according to claim 2, characterized in that: The bottom of each of the two portal plates (31) is provided with a spring compartment (32). A slide rod (33) is fixedly installed between the left and right sides of the inner wall of each of the two spring compartments (32). An L-shaped hanging plate (34) is slidably installed on the outer wall of each of the two slide rods (33). A spring (35) is fixedly installed on the opposite side of each of the two L-shaped hanging plates (34). The spring (35) is located on the outside of the slide rod (33).
4. The edge-grinding device for processing stainless steel tableware according to claim 3, characterized in that: L-shaped brackets (36) are fixedly installed at the bottom of the horizontal position of the two L-shaped hanging plates (34). Servo motors (37) are fixedly installed at the opposite ends of the horizontal position of the two L-shaped brackets (36). Grinding wheels (38) are fixedly installed on the output shafts of the two servo motors (37). The distance between the two grinding wheels (38) is less than the distance between the two silicone pads (392).
5. The edge-grinding device for processing stainless steel tableware according to claim 1, characterized in that: A water pump (41) is fixedly installed on the top of the cleaning water tank (4). A water supply pipe (43) that penetrates the inner cavity of the cleaning water tank (4) is fixedly connected to the front side of the cleaning water tank (4). The input end of the water pump (41) penetrates into the inner cavity of the cleaning water tank (4). A water supply pipe (42) is fixedly connected to the output end of the water pump (41). The other end of the water supply pipe (42) is located above the first grinding wheel (22).
6. The edge-grinding device for processing stainless steel tableware according to claim 1, characterized in that: A front baffle (13) is fixedly installed on the front side between the left and right sides of the inner wall of the grinding box (1). The front baffle (13) has a slot (131) that runs through the front and back. The left and right sides and the rear side of the inner wall of the grinding box (1) are provided with slots (14), and the front end of the slots (14) on the left and right sides runs through to the front side of the grinding box (1). The slot (131) and the two slots (14) on the left and right sides are interconnected. The slots (14) and the slots (131) are engaged with a snap-fit frame (141) on the inner side. A filter woven mesh plate (142) is fixedly installed on the inner ring of the snap-fit frame (141). A pull handle (143) is fixedly installed on the front side of the snap-fit frame (141). The filter woven mesh plate (142) is located below the first grinding wheel (22).
7. The edge-grinding device for processing stainless steel tableware according to claim 1, characterized in that: A drain pipe (15) is fixedly connected to the lower left side of the grinding box (1), and an electric control valve (151) is provided on the outer wall of the drain pipe (15).
Citation Information
Patent Citations
Burr polishing device for stainless steel tableware machining
CN215967916U