A stainless steel plate surface polishing device

Abstract

This utility model discloses a stainless steel plate surface polishing device, including a conveying mechanism and a plasma polishing mechanism. The conveying mechanism includes a conveying track, on which several conveying wheels are arranged, and a power mechanism for driving the conveying wheels to rotate. The plasma polishing mechanism includes a high-voltage power supply, a first spray assembly, and a conductive assembly. The first spray assembly includes a first spray pipe mounted above the conveying track, on which several uniformly arranged first nozzles are arranged, and the first nozzles are connected to the negative terminal of the high-voltage power supply. The conductive assembly includes a conductive wheel, which is connected to the positive terminal of the high-voltage power supply, and the conductive wheel is in electrical contact with the stainless steel plate. This utility model uses a plasma polishing method with sprayed electrolyte, forming only a suitable amount of electrolyte film on the surface of the stainless steel plate for plasma polishing. Compared with immersion polishing, this reduces the consumption of polishing fluid and can effectively reduce production costs.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel plate processing technology, and in particular to a stainless steel plate surface polishing device. Background Technology

[0002] Polishing is a crucial step in the processing of stainless steel sheets to improve their surface quality and performance. Common existing polishing processes for stainless steel sheets include mechanical polishing, chemical polishing, and electrochemical polishing, but each of these processes has its limitations.

[0003] 1) Mechanical polishing relies on mechanical force to remove surface unevenness. It requires a long time to repeatedly polish the board, resulting in low polishing efficiency. Furthermore, the mechanical force applied during polishing may cause scratches, deformation, and other damage to the board surface, affecting surface quality.

[0004] 2) Chemical polishing not only requires a large amount of chemical polishing liquid, which is costly, but also generates a large amount of wastewater containing heavy metal ions and acidic substances during the polishing process, which will cause serious environmental pollution.

[0005] 3) Electrochemical polishing requires specialized electrolytic cells, electrode systems, and power supply equipment, resulting in significant investment. Furthermore, to ensure polishing results, high precision and stability are required for the equipment, further increasing manufacturing and maintenance costs.

[0006] Therefore, many stainless steel products currently employ plasma polishing, where the workpiece is immersed in a polishing solution, a certain voltage is applied, and the surface material is selectively removed to polish the metal workpiece surface. However, this immersion method results in a large consumption of polishing solution and is inefficient for large plates or continuous production scenarios. Utility Model Content

[0007] To address the aforementioned problems, this invention provides a stainless steel plate surface polishing device that utilizes a sprayed electrolyte for plasma polishing, offering wide applicability and high working efficiency.

[0008] Therefore, the technical solution of this utility model is: a stainless steel plate surface polishing device, including a conveying mechanism and a plasma polishing mechanism. The conveying mechanism includes a conveying track, on which a plurality of conveying wheels are provided and a power mechanism for driving the conveying wheels to rotate. The plasma polishing mechanism includes a high-voltage power supply, a first spray assembly and a conductive assembly. The first spray assembly includes a first spray pipe mounted above the conveying track, on which a plurality of uniformly arranged first nozzles are provided, and the first nozzles are connected to the negative terminal of the high-voltage power supply. The conductive assembly includes a conductive wheel, which is mounted on the conveying track, connected to the positive terminal of the high-voltage power supply, and in electrical contact with the stainless steel plate.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: a pressure plate is provided above the conveying track, and the pressure plate is located above the conductive wheel; the pressure plate is sleeved on the mounting rod, and a spring is sleeved on the mounting rod, with one end of the spring abutting against the pressure plate and the other end abutting against the limiting block at the top of the mounting rod.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the conductive wheel includes a base shaft, a conductive copper ring and a metal brush layer, the conductive copper ring is electrically connected to the positive terminal of the high voltage power supply, and the metal brush layer is in sliding electrical contact with the stainless steel plate.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: it also includes an electrolyte tank, and the first spray pipe is connected to the electrolyte tank, and the electrolyte is drawn from the electrolyte tank by a pump.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the plasma polishing mechanism is located on the inlet side of the conveying track, and a cleaning mechanism is provided on the outlet side of the conveying track; the cleaning mechanism includes a second spray pipe and a clean water tank mounted above the conveying track, the second spray pipe is connected to the clean water tank, and a number of evenly arranged second nozzles are provided on the second spray pipe.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: a first water receiving tank and a second water receiving tank are provided below the conveying track, respectively located below the first spray assembly and the second spray assembly.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme, it also includes a protective cover, which is made of insulating material; the protective cover has an inlet and an outlet at both ends for the stainless steel plate to enter and exit.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Plasma polishing using sprayed electrolyte forms a thin film of electrolyte on the surface of the stainless steel plate for polishing. Compared to immersion polishing, this reduces the consumption of polishing solution and effectively lowers production costs. Furthermore, the stainless steel plate can be continuously moved along a conveyor track to complete the polishing process, greatly improving work efficiency and meeting the needs of large-scale production.

[0017] Conductive wheels of the same height as the conveyor wheels are installed on the conveyor track to ensure stable conductivity of the stainless steel plate during conveying and to ensure smooth conveying of the plate. The pressure plate is sleeved on the mounting rod and cooperates with the limit block through the spring. The pressure can be adaptively adjusted according to the thickness of the plate to further ensure that the plate is in close contact with the conductive wheels during polishing and to ensure the quality of electrolytic polishing.

[0018] 3. The cleaning mechanism can clean the polished stainless steel plates in a timely manner to ensure product cleanliness; a first water tank and a second water tank are set under the conveyor track to facilitate the collection of polishing waste liquid and cleaning wastewater respectively, maintaining a clean working environment; the protective cover made of insulating material can effectively prevent operators from being electrocuted and improve the safety of equipment operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Example 1;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a top view of the structure of Example 1;

[0022] Figure 4 This is a usage state diagram of Example 1;

[0023] Figure 5 This is a schematic diagram of the pressure plate structure in Example 2;

[0024] Figure 6 This is a schematic diagram of the protective cover in Example 3.

[0025] The components in the diagram are labeled as follows: base 1, guide rail 11, adjusting motor 12, pulley group 13, belt 14, conveyor rail 2, first conveyor rail 21, second conveyor rail 22, sliding seat 23, conveyor wheel 24, power motor 25, chain 26, first spray pipe 3, electrolyte tank 31, first nozzle 32, conductive wheel 4, second spray pipe 5, clean water tank 51, second nozzle 52, first water receiving tank 6, second water receiving tank 7, stainless steel plate 8, pressure plate 9, guide slope 91, mounting rod 92, spring 93, protective cover 10. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. They should not be construed as limiting the specific protection scope of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0028] See the attached drawings. The stainless steel plate surface polishing device described in this embodiment includes a base 1, a conveying mechanism, a plasma polishing mechanism, and a cleaning mechanism. The conveying mechanism includes conveying tracks 2 on both sides. The first conveying track 21 is fixed to the base 1, and the bottom ends of the second conveying track 22 are provided with sliding seats 23, which slide in cooperation with the guide rails 11 of the base 1. These sliding seats can be driven by an adjusting motor 12 through a pulley assembly 13. One end of the sliding seat 23 is fixed to a belt 14. The adjusting motor 12 drives the pulley to rotate, which in turn drives the sliding seat 23 to slide along the guide rail 11 via the belt 4, thereby adjusting the distance between the two conveying tracks 2. This device is suitable for conveying stainless steel plates of different sizes within a certain range.

[0029] A plurality of conveying wheels 24 are provided on the opposing sides of the first conveying track 21 and the second conveying track 22. The conveying wheels 24 are mounted on rotating shafts, which are rotatably mounted on the conveying tracks 2. The first conveying track 21 is equipped with a power mechanism that drives the conveying wheels 24 to rotate. The power mechanism includes a power motor 25, a drive sprocket, a chain 26, and multiple driven sprockets. The driven sprockets are mounted on the rotating shafts of each conveying wheel 24. The power motor 25 drives the drive sprocket to rotate, and the drive sprocket drives the multiple driven sprockets to rotate synchronously via the chain 26, thereby driving the conveying wheels 24 to rotate for conveying stainless steel plates. The surface of each conveying wheel 24 is covered with a rubber layer with good insulation properties.

[0030] The plasma polishing mechanism includes a high-voltage power supply, a first spray assembly, and a conductive component. The first spray assembly includes a first spray pipe 3 mounted above the conveying track 2, which is connected to an electrolyte tank 31. An electrolyte is drawn from the electrolyte tank 31 by a pump. Commercially available electrolytes, such as ammonium nitrate-phosphate composite systems, can be used. The first spray pipe 3 has several uniformly arranged first nozzles 32, which are connected to the negative terminal of the high-voltage power supply. The first nozzles 32 are made of ceramic or PTFE material and have a built-in negative electrode array. The electrodes are made of titanium / platinum coated material.

[0031] The conductive component includes a conductive wheel 4, which is rotatably mounted on the conveying track 2 and can be positioned between two conveying wheels 24. The conductive wheel 4 is at the same height as the conveying wheels 24. The conductive wheel 4 is connected to the positive terminal of the high-voltage power supply and is in electrical contact with the stainless steel plate 8. The conductive wheel 4 includes a base shaft, a conductive copper ring, and a metal brush layer. The conductive copper ring is electrically connected to the positive terminal of the high-voltage power supply, and the metal brush layer is in sliding electrical contact with the stainless steel plate 8. Circuit: Positive terminal of high-voltage power supply - conductive copper ring - metal brush layer - stainless steel plate. The number and spacing of the conductive wheels 4 can be reasonably designed by technicians according to the voltage and the range of the stainless steel plate; this is a common technical method.

[0032] A cleaning mechanism is provided on the outlet side of the conveying track 2. The cleaning mechanism includes a second spray pipe 5 and a clean water tank mounted above the conveying track. The second spray pipe 5 is connected to the clean water tank 51, and a plurality of evenly arranged second nozzles 52 are provided on the second spray pipe 5. A first water receiving tank 6 and a second water receiving tank 7 are provided below the conveying track 2, respectively located below the first spray assembly and the second spray assembly. The first water receiving tank 6 and the second water receiving tank 7 can collect most of the electrolyte and the clean water after spraying. The liquid in the first water receiving tank 6 can be recycled and filtered, and reused as electrolyte for spraying, saving costs.

[0033] Work process:

[0034] The stainless steel plate 8 to be polished is placed on the conveying track 2. The power mechanism drives the conveying wheel 24 to rotate, which moves the stainless steel plate 8 along the conveying track 2 from the inlet end to the outlet end.

[0035] When the stainless steel plate 8 moves to the plasma polishing mechanism, the conductive wheel 4 makes electrical contact with it. The metal bristle layer of the conductive wheel 4 makes sliding electrical contact with the stainless steel plate 8. Since the conductive copper ring of the conductive wheel 4 is connected to the positive terminal of the high-voltage power supply, the stainless steel plate 8 is positively energized. At the same time, the pump draws electrolyte from the electrolyte tank 31 and delivers it to the first nozzle 32 through the first spray pipe 3. The first nozzle 32 sprays the electrolyte evenly onto the surface of the stainless steel plate 8. The first nozzle 32 is connected to the negative terminal of the high-voltage power supply, forming an electric field between it and the stainless steel plate 8. Under the action of the electric field, the electrolyte generates plasma reaction, achieving selective removal of material from the surface of the stainless steel plate 8, thus completing the polishing process.

[0036] After polishing, the stainless steel plate 8 continues to move along the conveyor track to the cleaning mechanism. At this time, clean water in the clean water tank 51 is sprayed evenly onto the surface of the stainless steel plate 8 through the second spray pipe 5 and the second nozzle 52 to wash away residual electrolyte and other impurities on the surface.

[0037] During plasma polishing, most of the electrolyte sprayed onto the stainless steel plate 8 from the first nozzle 32 and the clean water sprayed from the second nozzle 52 during the cleaning process are collected in the first water receiving tank 6 and the second water receiving tank 7 located below the first spray assembly and the second spray assembly, so that the waste liquid and cleaning water can be treated later.

[0038] After cleaning, the stainless steel plate 8 is sent out from the outlet end of the conveyor track 2, completing the polishing and cleaning process of the entire upper surface of the stainless steel plate 8; if the other side of the stainless steel plate 8 still needs to be polished, it can be flipped over and polished on one side.

[0039] This embodiment operates based on the principle of plasma polishing. A high-voltage power supply creates an electric field between the stainless steel plate 8 (connected to the positive electrode) and the first nozzle 32 (connected to the negative electrode). When the electrolyte is sprayed from the first nozzle 32 onto the surface of the stainless steel plate 8, the electric field activates the ions in the electrolyte, triggering an electrochemical reaction. On the anode (stainless steel plate) surface, metal atoms lose electrons and dissolve into the electrolyte, while a reduction reaction occurs on the cathode (first nozzle) surface. Due to the relatively large electric field strength on the microscopic protrusions on the surface of the stainless steel plate 8, their dissolution rate is faster, thereby achieving microscopic surface smoothing and polishing. The conveying mechanism ensures the stainless steel plate passes continuously and stably through the polishing area, achieving continuous polishing; the cleaning mechanism uses the rinsing action of clean water to remove residual impurities, ensuring the polishing effect.

[0040] Example 2

[0041] Based on Embodiment 1, a pressure plate 9 is installed above the conveying track 2, positioned above the conductive wheel. The pressure plate 9 has a guide slope 91 at its front end. The pressure plate 9 is fitted onto a mounting rod 92, on which a spring 93 is mounted. One end of the spring 93 abuts against the pressure plate 9, and the other end abuts against a limiting block at the top of the mounting rod 92. The pressure plate 9 adaptively adjusts the pressure on the stainless steel plate 8 through the elastic force of the spring 93, ensuring that the stainless steel plate 8 is electrically connected to the conductive wheel 4 during conveying, maintaining stable operation without shaking.

[0042] Example 3

[0043] Based on Embodiment 1, a protective cover 10 is provided on the outside of the entire device. The protective cover 10 is made of insulating material. The protective cover 10 has an inlet and an outlet at both ends for the stainless steel plate 8 to enter and exit.

[0044] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A stainless steel plate surface polishing device, characterized in that: The system includes a conveying mechanism and a plasma polishing mechanism. The conveying mechanism includes a conveying track with several conveying wheels and a power mechanism for driving the conveying wheels to rotate. The plasma polishing mechanism includes a high-voltage power supply, a first spray assembly, and a conductive assembly. The first spray assembly includes a first spray pipe mounted above the conveying track, with several evenly arranged first nozzles on the first spray pipe, and the first nozzles are connected to the negative terminal of the high-voltage power supply. The conductive assembly includes a conductive wheel mounted on the conveying track, connected to the positive terminal of the high-voltage power supply, and in electrical contact with a stainless steel plate.

2. The stainless steel plate surface polishing device as described in claim 1, characterized in that: A pressure plate is provided above the conveying track, and the pressure plate is located above the conductive wheel; the pressure plate is sleeved on the mounting rod, and a spring is sleeved on the mounting rod, with one end of the spring abutting against the pressure plate and the other end abutting against the limiting block at the top of the mounting rod.

3. The stainless steel plate surface polishing device as described in claim 1, characterized in that: The conductive wheel includes a base shaft, a conductive copper ring, and a metal brush layer. The conductive copper ring is electrically connected to the positive terminal of the high-voltage power supply, and the metal brush layer is in sliding electrical contact with a stainless steel plate.

4. The stainless steel plate surface polishing device as described in claim 1, characterized in that: It also includes an electrolyte tank, with the first spray pipe connected to the electrolyte tank, and the electrolyte is drawn from the electrolyte tank by a pump.

5. The stainless steel plate surface polishing device as described in claim 1, characterized in that: The plasma polishing mechanism is located on the inlet side of the conveying track, and a cleaning mechanism is provided on the outlet side of the conveying track. The cleaning mechanism includes a second spray pipe and a clean water tank mounted above the conveying track. The second spray pipe is connected to the clean water tank, and a number of evenly arranged second nozzles are provided on the second spray pipe.

6. The stainless steel plate surface polishing device as described in claim 5, characterized in that: The first water receiving tank and the second water receiving tank are located below the conveying track, respectively, below the first spray assembly and the second spray assembly.

7. The stainless steel plate surface polishing device as described in claim 1, characterized in that: It also includes a protective cover, which is made of insulating material; the protective cover has an inlet and an outlet at both ends for the stainless steel plate to enter and exit.

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