A surface treatment device for scrap materials in metal processing

Abstract

This invention relates to the field of workpiece cleaning and discloses a surface treatment device for scrap materials in metal processing. The device includes: a processing chamber with an outer frame slidably disposed within it, and an inner frame within the outer frame; a partition within the processing chamber dividing it into a cleaning chamber and a sand chamber, the sand chamber being filled with gravel; the gravel in the sand chamber being transported to the top of the outer frame by a spiral auger in a conveying pipe, falling into the inner frame and contacting the workpiece, whereby the gravel generates multi-point, multi-directional friction on the workpiece surface, effectively removing stubborn oil stains, metal debris, and oxide layers. A swaying component between the conveying pipe and the outer frame drives the conveying pipe to reciprocate horizontally and the outer frame to reciprocate vertically, enhancing the uniformity of gravel rolling and the thoroughness of cleaning.

Description

Technical Field

[0001] This invention relates to the technical field of workpiece cleaning, and specifically to a surface treatment device for scrap materials in metal processing. Background Technology

[0002] In metal processing, such as cutting, stamping, casting and welding, a large amount of metal scrap is often generated. The surface of these scraps is usually covered with oil, metal shavings and oxides.

[0003] These surface residues not only affect the recycling and reprocessing quality of surplus materials, but may also cause equipment blockage, contamination or damage when entering subsequent production stages (such as smelting, pressing, shaping, etc.).

[0004] Therefore, how to efficiently remove oil and debris from the surface of metal scraps is an important problem that the metal processing industry urgently needs to solve. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface treatment device for scrap materials in metal processing, which aims to alleviate the aforementioned problems to at least some extent.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A surface treatment device for scrap metal from metal processing, comprising:

[0008] The processing box has an outer frame that is slidably disposed within the processing box, and an inner frame is provided inside the outer frame.

[0009] A partition is provided inside the processing chamber, which separates the processing chamber into a cleaning chamber and a sand chamber, the sand chamber being filled with sand.

[0010] Multiple conveying pipes are installed inside the processing box, and spiral augers are installed inside the conveying pipes;

[0011] An inlet pipe and an outlet pipe are provided on the processing box, the inlet pipe is connected to the cleaning chamber, and the outlet pipe is connected to the sand chamber;

[0012] A conveying component installed on the conveying pipe is used to convey sand and gravel from the sand chamber into the inner frame;

[0013] A swaying component is provided between the conveying pipe and the outer frame for synchronously moving the conveying pipe and the outer frame;

[0014] A sand washing component located between the conveying pipe and the partition is used to intermittently open and close the partition.

[0015] Preferably, the conveying component includes a conveying shaft rotatably connected inside the conveying pipe, the spiral auger fixed on the conveying shaft, a motor connected to the top of one of the conveying pipes, the drive shaft of the motor connected to a corresponding conveying shaft, a protective sleeve fixed to the bottom of multiple conveying pipes, and a chain mechanism connected between every two conveying shafts, the chain mechanism being housed within the protective sleeve.

[0016] Preferably, the side wall of the processing box is provided with a track groove, the outer frame is slidably connected to the track groove, a spring a is connected between the outer frame and the track groove, a magnet is connected to the outer frame, and the inner frame is metal and magnetically attracted to the magnet.

[0017] Preferably, the swaying component includes a bracket a connected to the conveying pipe, the bracket a fixing multiple conveying pipes, an inclined rail connected to the bracket a, and a guide rod that slides with the inclined rail connected to the bottom of the outer frame.

[0018] Preferably, the shaking component further includes a bracket b connected to the conveying pipe, a cylinder on the processing box, and the telescopic shaft of the cylinder extending into the processing box and fixed to the bracket b.

[0019] Preferably, the partition includes a fixed plate fixed to the processing box, with connection ports on both sides of the fixed plate, a sliding plate fixed on the conveying pipe and inserted into the connection port, and multiple connecting ports on the fixed plate, with baffles rotatably connected to the connecting ports.

[0020] Preferably, a filter frame is connected to the bottom of the sliding plate, and a filter screen is provided on the filter frame, with the position of the liquid outlet pipe corresponding to the filter frame.

[0021] Preferably, when the conveying pipe moves in direction a, the partition is closed and the sand in the sand cavity is disturbed; when the conveying pipe moves in direction b, the partition is opened and the sand in the sand cavity is disturbed.

[0022] The sand washing component includes a connecting shaft rotatably connected to the connecting port, a baffle fixed on the connecting shaft, and guide cylinders a connected to both ends of the connecting shaft. The guide cylinders a have a spiral opening a, and the side wall of the sliding plate has a push rod a that slides in cooperation with the spiral opening a on the guide cylinders a.

[0023] Preferably, the sand washing component further includes multiple disturbance shafts rotatably connected to the bottom of the fixed plate, multiple stirring blades connected to the disturbance shafts, guide cylinders b connected to both ends of the disturbance shafts, spiral openings b on the guide cylinders b, and a push rod b fixed to the bottom of the sliding plate, which slides in cooperation with the spiral openings b.

[0024] Preferably, the push rod a is slidably disposed on the sliding plate and is connected to the sliding plate by a spring b, and the length of the helical opening a is shorter than that of the helical opening b.

[0025] In summary, the present invention has the following main beneficial effects:

[0026] This invention, through the design of a sliding outer frame and a detachable inner frame, allows the workpiece to be easily placed into the inner frame, which is then placed inside the outer frame for support. Upon startup, cleaning fluid is injected into the cleaning chamber via the inlet pipe. The liquid flows over the workpiece surface, softening oil stains and suspending fine debris. Waste liquid is discharged through the outlet pipe at the bottom of the sand chamber. The abrasive particles in the sand chamber are transported to the top of the outer frame by a spiral auger within the conveying pipe, falling into the inner frame and contacting the workpiece. The abrasive particles generate multi-point, multi-directional friction on the workpiece surface, effectively removing stubborn oil stains, metal debris, and oxide layers. A swaying component between the conveying pipe and the outer frame drives the conveying pipe to reciprocate horizontally and the outer frame to reciprocate vertically, enhancing the uniformity of abrasive particle rolling and the thoroughness of the cleaning process.

[0027] In addition, a sand-washing component is installed between the baffle and the conveying pipe to intermittently open and close the baffle. When the conveying pipe moves in direction b (away from the outer frame), the baffle opens, and the sand falls back into the sand chamber and is disturbed and collided, achieving self-cleaning by removing oil and residue. When the conveying pipe moves in direction a (towards the outer frame), the baffle closes, and the bottom opening of the conveying pipe is close to the disturbed sand area, ensuring the cleanliness of the sand while making it easier for the sand to enter the conveying pipe. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the present invention;

[0030] Figure 3 yes Figure 2 Enlarged schematic diagram of the local structure at point A;

[0031] Figure 4 This is a schematic diagram of the outer frame and inner frame structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the conveying pipe structure of the present invention;

[0033] Figure 6 This is another schematic diagram of the conveying pipe structure of the present invention;

[0034] Figure 7 This is a schematic diagram of the fixing plate structure of the present invention.

[0035] Figure label:

[0036] 100. Processing tank; 101. Outer frame; 102. Inner frame; 103. Partition; 104. Cleaning chamber; 105. Sand chamber; 106. Conveying pipe; 107. Spiral auger; 108. Liquid inlet pipe; 109. Liquid outlet pipe;

[0037] 200. Conveyor shaft; 201. Motor; 202. Protective sleeve; 203. Chain mechanism; 204. Track groove; 205. Spring a; 206. Magnet; 207. Bracket a; 208. Inclined track; 209. Guide rod; 210. Bracket b; 211. Cylinder;

[0038] 300. Filter frame; 301. Connecting shaft; 302. Guide cylinder a; 303. Spiral port a; 304. Push rod a; 305. Filter screen; 306. Fixing plate; 307. Connecting port; 308. Connecting port; 309. Baffle; 310. Sliding plate;

[0039] 400, Disturbance shaft; 401, Stirring blade; 402, Guide cylinder b; 403, Spiral port b; 404, Push rod b; 405, Spring b. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] refer to Figures 1-7 This embodiment provides a surface treatment device for scrap metal in metal processing, including a treatment box 100, an outer frame 101, an inner frame 102, a partition 103, a conveying pipe 106, a conveying component, a shaking component, and a sand washing component.

[0042] Specifically, the processing box 100 has a sliding outer frame 101 inside, and an inner frame 102 inside the outer frame 101 for holding the metal workpiece to be processed. The outer frame 101 is installed in the processing box 100 through a track groove 204 and can move back and forth in the vertical direction so as to drive the workpiece to shake up and down during the processing, thereby enhancing the cleaning effect.

[0043] The lower middle part of the processing chamber 100 is provided with a horizontal partition 103, dividing the internal space into upper and lower parts. The upper part is a cleaning chamber 104, and the lower part is a sand chamber 105. The sand chamber 105 is filled with a certain amount of sand as a cleaning medium. The sand chamber 105 is connected to a liquid outlet pipe 109 for discharging oily waste liquid accumulated during the cleaning process. The upper part of the cleaning chamber 104 is provided with a liquid inlet pipe 108 for injecting cleaning fluid (such as alkaline aqueous solution, degreasing agent, etc.).

[0044] The plurality of conveying pipes 106 pass through the partition 103 and extend from the sand chamber 105 to the top of the outer frame 101. Each conveying pipe 106 is equipped with a spiral auger 107, one end of which is located inside the sand chamber 105, and the other end is located at the discharge port at the top of the outer frame 101. Driven by a conveying component, the conveying pipes 106 can transport the sand and gravel in the sand chamber 105 to the inner frame 102 inside the outer frame 101, so that the sand and gravel come into contact with the metal workpiece to be cleaned.

[0045] In order to achieve efficient cleaning, a swaying component is provided between the conveying pipe 106 and the outer frame 101. This component drives the conveying pipe 106 to move back and forth in the horizontal direction, while causing the outer frame 101 to move back and forth in the vertical direction.

[0046] In addition, a sand washing component is provided between the partition 103 and the conveying pipe 106, which can control the intermittent opening and closing of the partition 103. When the conveying pipe 106 moves in direction a (i.e. towards the outer frame 101), the partition 103 is closed and the sand in the sand cavity 105 is disturbed. When the conveying pipe 106 moves in direction b (i.e. away from the outer frame 101), the partition 103 is opened and the sand in the sand cavity 105 is disturbed.

[0047] With the above setup, the workpiece to be cleaned can be placed in the inner frame 102, and then the inner frame 102 can be placed inside the outer frame 101 for support. After the device is started, the inlet pipe 108 at the top of the treatment chamber 100 begins to inject cleaning fluid (such as an alkaline aqueous solution or degreaser) into the cleaning chamber 104. The liquid flows over the surface of the workpiece, softening the oil and suspending fine debris. At the same time, the oily waste liquid generated during the cleaning process is discharged through the outlet pipe 109 at the bottom of the sand chamber 105 to prevent the accumulation of waste liquid from affecting the cleaning effect.

[0048] The sand and gravel filling the sand chamber 105 are transported to the top of the outer frame 101 via a spiral auger 107 installed in multiple conveying pipes 106, and then fall into the inner frame 102 to contact the metal workpiece. The conveying components are continuously driven, causing the sand and gravel rings to be conveyed to the workpiece surface. The sand and gravel particles generate multi-point, multi-directional mechanical friction on the workpiece surface, effectively removing stubborn oil stains, metal debris, and oxide layers. This sand and gravel friction cleaning process has stronger cleaning power than single liquid cleaning or brushing methods, significantly improving the cleanliness of the workpiece surface and ensuring the quality of subsequent recycling or processing stages.

[0049] In addition, a swaying component is provided between the conveying pipe 106 and the outer frame 101, driving the conveying pipe 106 to reciprocate horizontally, while the outer frame 101 reciprocates vertically. During the cleaning process, the workpiece continuously changes its posture and force direction, simultaneously ensuring that the grit rolls more evenly and thoroughly on the workpiece surface. This multi-dimensional collaborative design greatly improves the comprehensiveness and efficiency of the cleaning process.

[0050] To ensure the cleanliness and recycling of the sand, a sand-washing component is provided between the baffle 103 and the conveying pipe 106, which is used to intermittently open and close the baffle 103. When the conveying pipe 106 moves in direction b, the baffle 103 opens, allowing the sand that falls from the baffle 103 due to washing to fall smoothly back into the sand chamber 105. At the same time, the sand in the sand chamber 105 is continuously agitated by the movement of the conveying pipe 106, causing the sand to collide and tumble with each other, thus peeling off the oil and fine residue adhering to its surface through friction, achieving the effect of self-cleaning of the medium.

[0051] When the conveying pipe 106 moves in direction a, the partition 103 closes, forming a partially enclosed environment in the sand chamber 105. During this process, the sand and gravel are disturbed and tumbled due to their own weight and inertia. At this time, the opening at the bottom of the conveying pipe 106 comes into close contact with the disturbed sand and gravel area, making it easier for the sand and gravel to enter the conveying pipe 106 and be conveyed to the top of the outer frame 101 by the spiral auger 107. This design effectively optimizes the sand and gravel collection efficiency and supply stability by utilizing the moving direction of the conveying pipe 106 and the gravity characteristics of the sand and gravel, ensuring the continuity and efficiency of the washing process.

[0052] Throughout the cleaning process, the opening and closing of the sand washing components and the reciprocating motion of the conveying pipe 106 are precisely linked, ensuring both efficient return of the sand and gravel and dynamic renewal and cleaning of the sand and gravel. In particular, the optimization of material intake in direction a improves the overall operating efficiency of the equipment.

[0053] After cleaning, the outer frame 101 moves upward along the track groove 204 to the top positioning position, at which point the inner frame 102 is at a height that is easy to operate. The operator can separate the inner frame 102 from the outer frame 101 and remove the inner frame 102 separately, thereby easily removing the cleaned metal workpiece.

[0054] In this embodiment, the conveying component includes a conveying shaft 200 rotatably connected within a conveying pipe 106. A spiral auger 107 is fixed to the conveying shaft 200 for pushing gravel along the conveying pipe 106 from the bottom of the sand chamber 105 to the top of the outer frame 101. Among the plurality of conveying pipes 106, a motor 201 is connected to the top of one of the conveying pipes 106. The drive shaft of the motor 201 is connected to the corresponding conveying shaft 200 to provide driving force. A protective sleeve 202 is fixed to the bottom of the plurality of conveying pipes 106. Every two conveying shafts 200 are connected by a chain mechanism 203, which is housed within the protective sleeve 202 and is used to transmit power.

[0055] With the above setup, motor 201 starts and drives the connected conveyor shaft 200 to rotate. The spiral auger 107 fixed on the conveyor shaft 200 begins to rotate, conveying the sand and gravel at the bottom of the sand chamber 105 upwards along the conveyor pipe 106 to the top of the outer frame 101. Subsequently, the sand and gravel fall into the inner frame 102 and contact the metal workpiece. The conveyor shafts 200 of multiple conveyor pipes 106 are connected by a chain mechanism 203. The power of motor 201 is evenly distributed to each conveyor shaft 200 through the chain within the protective sleeve 202, so that the spiral augers 107 in multiple conveyor pipes 106 operate synchronously, ensuring the stability and consistency of sand and gravel conveying.

[0056] In addition, the bottom protective sleeve 202 covers and protects the chain mechanism 203, preventing impurities such as sand and debris from entering the chain engagement part, effectively reducing the risk of wear and jamming, and improving the stability and service life of the conveying system.

[0057] In this embodiment, the side wall of the processing box 100 is provided with a track groove 204 to define the movement path of the outer frame 101. The outer frame 101 is slidably connected to the track groove 204 and can move up and down in the vertical direction. A spring a205 is provided between the outer frame 101 and the track groove 204 to provide buffering force and assist in resetting the outer frame 101. A magnet 206 is installed on the outer frame 101, and the inner frame 102 is made of metal. The inner frame 102 is connected and fixed to the outer frame 101 by magnetic attraction. During operation, the inner frame 102 can be easily separated from or assembled with the outer frame 101, facilitating the placement and removal of workpieces.

[0058] With the above setup, during operation, the operator first places the inner metal frame 102 into the outer frame 101. The magnets 206 on the outer frame 101 and the inner frame 102 then magnetically attract each other, quickly securing them together. This eliminates the need for additional screws, clips, or other mechanical connectors, effectively simplifying the assembly process and improving the convenience and efficiency of loading and unloading materials.

[0059] In this embodiment, the swaying component includes a bracket a207 connected to the conveying pipe 106, used to fix multiple conveying pipes 106 together. The bracket a207 is provided with an inclined track 208, and a guide rod 209 is connected to the bottom of the outer frame 101, the guide rod 209 slidingly engaging with the inclined track 208. When the bracket a207 drives the conveying pipe 106 to reciprocate horizontally, the outer frame 101 will move synchronously up and down vertically due to the interaction between the guide rod 209 and the inclined track 208.

[0060] With the above configuration, during operation, the support a207 and the multiple conveying pipes 106 on it reciprocate horizontally. Since the support a207 is equipped with an inclined track 208, and the guide rod 209 at the bottom of the outer frame 101 slides in cooperation with the inclined track 208, when the support a207 reciprocates horizontally, the guide rod 209 slides up and down along the inclined track 208, thereby driving the outer frame 101 to produce a vertical reciprocating motion.

[0061] On the one hand, the horizontal movement of the conveying pipe 106 can change the position of the conveyed grit, which can enhance the lateral coverage of the grit on the workpiece surface, making the friction between the grit and the workpiece surface more uniform and the cleaning more thorough. On the other hand, the vertical movement of the outer frame 101 allows the workpiece to continuously change its posture in the vertical direction, effectively avoiding cleaning dead corners. The combination of the two ensures that the grit rolls fully and is evenly distributed during the cleaning process, greatly improving the decontamination efficiency of the workpiece surface.

[0062] In this embodiment, the swaying component includes not only a bracket a207 connected to the conveying pipe 106 for sliding engagement with the bottom guide rod 209 of the outer frame 101 and the inclined track 208, but also a bracket b210 connected to the conveying pipe 106 and a cylinder 211 mounted on the processing chamber 100. The telescopic shaft of the cylinder 211 passes into the processing chamber 100 and is fixedly connected to the bracket b210. Through the reciprocating telescopic drive of the cylinder 211, the bracket b210 can drive the conveying pipe 106 to reciprocate horizontally, thereby achieving vertical movement of the outer frame 101 in coordination with the inclined track 208.

[0063] With the above configuration, during the operation of the device, the cylinder 211 is activated, and its telescopic shaft extends and retracts, pulling and pushing the bracket b210 fixed thereon, causing the bracket b210 and the conveying pipe 106 to reciprocate horizontally. At this time, the bracket a207, through sliding cooperation with the bottom guide rod 209 of the outer frame 101 and the inclined track 208, converts the horizontal movement of the conveying pipe 106 into the vertical reciprocating movement of the outer frame 101.

[0064] In this embodiment, the partition 103 includes a fixed plate 306 fixedly disposed within the processing chamber 100. Connection ports 307 are respectively provided on both sides of the fixed plate 306 for engaging with the conveying pipe 106. A sliding plate 310 is fixedly mounted on the conveying pipe 106, and the sliding plate 310 passes through the connection ports 307 on both sides of the fixed plate 306, allowing for relative sliding. The fixed plate 306 also has multiple connecting ports 308, each of which is rotatably connected to a baffle 309, used to adjust the opening or closing state of the connecting port 308 according to the movement state of the conveying pipe 106 and the sliding plate 310.

[0065] With the above configuration, during operation, the fixed plate 306 serves as the main load-bearing structure of the partition 103, and is securely installed inside the processing box 100. The connection ports 307 on both sides cooperate with the sliding plates 310 on the conveying pipe 106. When the conveying pipe 106 reciprocates horizontally, the sliding plates 310 slide synchronously within the connection ports 307. A rotatable baffle 309 is provided in the communication port 308 on the fixed plate 306, which can be opened or closed according to the movement of the conveying pipe 106 and the sliding plates 310.

[0066] Specifically, when the conveying pipe 106 moves in direction b, the sliding plate 310 drives the baffle 309 to open the connecting port 308, allowing the gravel to fall smoothly back into the sand cavity 105. Within the sand cavity 105, the gravel is disturbed, causing collisions and tumbling among itself, thereby stripping away oil and fine residue adhering to its surface, achieving a self-cleaning effect. When the conveying pipe 106 moves in direction a, the sliding plate 310 pushes the baffle 309 to close the connecting port 308, forming a partially enclosed environment. Simultaneously, the opening at the bottom of the conveying pipe 106 is close to the disturbed gravel area, making it easier for the gravel to enter the conveying pipe 106 and be conveyed to the top of the outer frame 101 by the spiral auger 107.

[0067] In this embodiment, a filter frame 300 is connected to the bottom of the sliding plate 310, which moves together with the sliding plate 310 as it moves with the conveying pipe 106. A filter screen 305 is provided on the filter frame 300 to intercept sand and gravel, preventing it from flowing into the outlet pipe 109 with the cleaning waste liquid. The position of the outlet pipe 109 corresponds to that of the filter frame 300, ensuring that the cleaning liquid passes through the filter screen 305 of the filter frame 300 before being discharged, achieving solid-liquid separation.

[0068] With the above configuration, during operation, the sliding plate 310 is connected to the conveying pipe 106 and slides horizontally back and forth within the connection port 307 of the partition 103 along with the conveying pipe 106. The filter frame 300 at the bottom of the sliding plate 310 moves synchronously. When the cleaning fluid flows through the cleaning chamber 104 and the sand chamber 105 and finally collects in the outlet pipe 109 for discharge, all the liquid must first pass through the filter screen 305. The filter screen 305 effectively intercepts the sand particles entrained in the liquid flow, allowing only the cleaned liquid to enter the outlet pipe 109 for discharge.

[0069] On the one hand, by utilizing the linkage between the sliding plate 310 and the filter frame 300, the filter screen 305 is prevented from forming local accumulation or blockage due to long-term fixed use, thus realizing dynamic filtration and automatic disturbance, reducing the risk of filter screen 305 blockage and extending the service life of filter screen 305. On the other hand, by setting a physical filtration barrier in front of the liquid outlet pipe 109, the loss of particulate matter during the liquid discharge process is greatly reduced, which not only protects downstream pipes and equipment from blockage, but also provides conditions for the recovery of sand and gravel, thus improving the resource utilization rate of the system.

[0070] In this embodiment, the sand washing component includes a connecting shaft 301 rotatably connected within the connecting port 307. A baffle 309 is fixed on the connecting shaft 301 to control the opening and closing of the connecting port 308 on the fixed plate 306. Guide cylinders a302 are connected to both ends of the connecting shaft 301, and a helical opening a303 is provided on the guide cylinder a302. A push rod a304 is provided on the side wall of the sliding plate 310, and the push rod a304 slides in cooperation with the helical opening a303 on the guide cylinder a302.

[0071] With the above configuration, during device operation, the sliding plate 310 and the conveying pipe 106 reciprocate synchronously in the horizontal direction. The push rod a304 on the side wall of the sliding plate 310 is tightly engaged with the spiral opening a303 on the guide cylinder a302. When the sliding plate 310 slides back and forth, the push rod a304 slides along the spiral path of the spiral opening a303, causing the guide cylinder a302 to rotate. The rotation of the guide cylinder a302 is transmitted through the connecting shaft 301, driving the baffle 309 on the connecting shaft 301 to rotate, thereby opening or closing the connecting port 308 of the fixed plate 306.

[0072] In this embodiment, the sand washing component further includes multiple agitator shafts 400 rotatably connected to the bottom of the fixed plate 306. Each agitator shaft 400 is connected to multiple stirring blades 401 for agitating the sand and gravel in the sand chamber 105. Guide cylinders b402 are connected to both ends of each agitator shaft 400, and the guide cylinders b402 have spiral openings b403. A push rod b404 is fixed to the bottom of the sliding plate 310, and the push rod b404 slides in cooperation with the spiral opening b403 on the guide cylinder b402. When the sliding plate 310 moves horizontally along the conveying pipe 106, the push rod b404 slides within the spiral opening b403, causing the guide cylinder b402 to rotate, thereby driving the agitator shafts 400 and their stirring blades 401 to rotate, thus agitating the sand and gravel in the sand chamber 105.

[0073] With the above setup, during the cleaning process, the sliding plate 310 and the conveying pipe 106 move horizontally and reciprocally in sync. The push rod b404 at the bottom of the sliding plate 310 is tightly engaged with the spiral opening b403 on the guide cylinder b402. When the sliding plate 310 moves horizontally, the push rod b404 slides within the spiral opening b403, causing the guide cylinder b402 to rotate. The rotational motion of the guide cylinder b402 drives the disturbance shaft 400 to rotate through the connection at both ends, causing the stirring blades 401 on the disturbance shaft 400 to rotate and operate.

[0074] In this embodiment, the push rod a304 is slidably disposed on the sliding plate 310 and is connected to the sliding plate 310 by a spring b405. The spiral opening a303 on the guide cylinder a302 is shorter than the spiral opening b403 on the guide cylinder b402.

[0075] With the above setup, during the cleaning process, when the conveying pipe 106 drives the sliding plate 310 to reciprocate horizontally, the push rod a304 on the sliding plate 310 slides within the spiral opening a303, causing the guide cylinder a302 to rotate rapidly. This allows the baffle 309 to open or close the connecting port 308 more quickly. Due to the short length and steep pitch of the spiral opening a303, the push rod a304 can achieve a large angle rotation with a small sliding displacement, enabling the baffle 309 to respond quickly and precisely control the flow or closure of the gravel. The rapid opening and closing of the baffle 309 allows for more precise switching of the gravel flow state, avoiding supply interruptions caused by delays.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for scrap metal in metal processing, comprising: A processing box (100) is provided inside the processing box (100) with an outer frame (101) which is slidably disposed inside the processing box (100) and an inner frame (102) is provided inside the outer frame (101). Its features are: It also includes a partition (103) disposed inside the processing box (100), the partition (103) dividing the processing box (100) into a cleaning chamber (104) and a sand chamber (105), the sand chamber (105) being filled with sand and gravel; Multiple conveying pipes (106) are provided inside the processing box (100), and a spiral auger (107) is provided inside the conveying pipes (106); An inlet pipe (108) and an outlet pipe (109) are provided on the processing box (100). The inlet pipe (108) is connected to the cleaning chamber (104), and the outlet pipe (109) is connected to the sand chamber (105). A conveying component provided on the conveying pipe (106) is used to convey sand and gravel in the sand chamber (105) into the inner frame (102); A swaying component is provided between the conveying pipe (106) and the outer frame (101) for synchronously moving the conveying pipe (106) and the outer frame (101); A sand washing component is provided between the conveying pipe (106) and the partition (103) for intermittently opening and closing the partition (103); The swaying component includes a bracket a (207) connected to the conveying pipe (106), the bracket a (207) fixing multiple conveying pipes (106), an inclined rail (208) connected to the bracket a (207), and a guide rod (209) slidably engaged with the inclined rail (208) connected to the bottom of the outer frame (101). When the conveying pipe (106) moves toward the outer frame (101), it closes the partition (103) and disturbs the sand in the sand cavity (105); when the conveying pipe (106) moves away from the outer frame (101), it opens the partition (103) and disturbs the sand in the sand cavity (105). The partition (103) includes a fixed plate (306) fixed inside the processing box (100). Connection ports (307) are respectively opened on both sides of the fixed plate (306). A sliding plate (310) inserted into the connection port (307) is fixed on the conveying pipe (106). Multiple communication ports (308) are opened on the fixed plate (306). A baffle (309) is rotatably connected inside the communication port (308). The sand washing component includes a connecting shaft (301) rotatably connected to the connecting port (307), a baffle (309) fixed on the connecting shaft (301), and guide cylinders a (302) connected to both ends of the connecting shaft (301). A spiral opening a (303) is provided on the guide cylinder a (302), and a push rod a (304) is provided on the side wall of the sliding plate (310) to slide in cooperation with the spiral opening a (303) on the guide cylinder a (302).

2. The surface treatment device for metal processing scraps according to claim 1, characterized in that, The conveying component includes a conveying shaft (200) rotatably connected within the conveying pipe (106), a spiral auger (107) fixed to the conveying shaft (200), a motor (201) connected to the top of one of the conveying pipes (106), the drive shaft of the motor (201) being connected to a corresponding conveying shaft (200), a protective sleeve (202) being fixed to the bottom of multiple conveying pipes (106), and a chain mechanism (203) connected between every two conveying shafts (200), the chain mechanism (203) being housed within the protective sleeve (202).

3. The surface treatment device for metal processing scraps according to claim 1, characterized in that, The processing box (100) has a track groove (204) on its side wall. The outer frame (101) is slidably connected to the track groove (204). A spring a (205) is connected between the outer frame (101) and the track groove (204). A magnet (206) is connected to the outer frame (101). The inner frame (102) is made of metal and is magnetically attracted to the magnet (206).

4. The surface treatment device for metal processing scraps according to claim 1, characterized in that, The swaying component also includes a bracket b (210) connected to the conveying pipe (106), a cylinder (211) on the processing box (100), and the telescopic shaft of the cylinder (211) extending into the processing box (100) and fixed to the bracket b (210).

5. The surface treatment device for metal processing scraps according to claim 4, characterized in that, The bottom of the sliding plate (310) is connected to a filter frame (300), and a filter screen (305) is provided on the filter frame (300). The position of the liquid outlet pipe (109) corresponds to the filter frame (300).

6. The surface treatment device for scrap metal processing according to claim 1, characterized in that, The sand washing component also includes a plurality of disturbance shafts (400) rotatably connected to the bottom of the fixed plate (306). A plurality of stirring blades (401) are connected to the disturbance shafts (400). Guide cylinders (402) are respectively connected to both ends of the disturbance shafts (400). A spiral opening (403) is provided on the guide cylinder (402). A push rod (404) is fixed to the bottom of the sliding plate (310) and slides in cooperation with the spiral opening (403).

7. The surface treatment device for metal processing scraps according to claim 6, characterized in that, The push rod a (304) is slidably disposed on the sliding plate (310) and a spring b (405) is connected between the push rod a (304) and the sliding plate (310). The length of the spiral opening a (303) is shorter than that of the spiral opening b (403).

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