Single-station double-liquid roller cleaning machine

Abstract

The application relates to a single-station double-liquid roller type cleaning machine, and relates to the technical field of mechanical cleaning equipment. The single-station double-liquid roller type cleaning machine mainly comprises a roller, a water circulation device and a drying device. The roller rotation realizes part cleaning and discharging. The water circulation device provides continuous water flow which is recycled after filtration and magnetic attraction treatment. The drying device utilizes a heating box, a fan and a pressurization system to realize efficient hot air drying. The combination design of the spray pipe and the air injection pipe can accurately spray water and air, and a circulating pipe is arranged in the roller to assist air extraction, so that the drying effect is optimized. The application achieves the technical purposes of improving cleaning efficiency, saving water resources and improving drying effect, and simultaneously realizes the effects of compact structure and simple operation.

Description

Technical Field

[0001] This application relates to the field of mechanical cleaning equipment technology, and in particular to a single-station dual-liquid drum cleaning machine. Background Technology

[0002] Rotating parts such as bearing steel balls are widely used in modern industry, especially in the machinery manufacturing sector. To ensure their performance and lifespan, rigorous cleaning processes are required during production. Traditional cleaning techniques mainly rely on immersion and multiple transfers. While this process meets basic cleaning needs, it is inefficient and difficult to adapt to the high-efficiency, high-quality production requirements of modern industry. With the continuous growth of market demand, improving cleaning efficiency has become a crucial issue that the industry urgently needs to address.

[0003] Currently, common solutions for cleaning rotating parts such as bearing steel balls include immersion cleaning, spray cleaning, and ultrasonic cleaning. Immersion cleaning involves placing the parts in a cleaning solution for a period of time, using the liquid to dissolve or rinse away surface impurities; spray cleaning uses high-pressure water jets to directly act on the surface of the parts to achieve a cleaning effect; ultrasonic cleaning uses the cavitation effect generated by high-frequency vibration to remove tiny impurities. In addition, there are some combined cleaning equipment that typically combine multiple cleaning methods to improve the cleaning effect. However, these methods generally suffer from being cumbersome to operate and time-consuming.

[0004] The main drawback of the aforementioned cleaning methods is that they mostly require multiple transfers of parts, and the cleaning process cannot be continuous, resulting in low overall cleaning efficiency. Especially when processing large batches of parts, this inefficient cleaning method significantly increases production costs and reduces production cycle time. Therefore, designing a device that can reduce the number of part transfers and improve cleaning efficiency has become an urgent technical problem to be solved. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a single-station dual-liquid drum cleaning machine.

[0006] A single-station dual-liquid drum cleaning machine includes a drum, a water circulation device, and a drying device. The inner surface of the drum is provided with spiral blades, which are designed in segments. The drum rotates to clean the parts and discharge them after cleaning. The water circulation device provides a continuous water flow for the cleaning process, and the drying device is used to dry the cleaned parts.

[0007] Preferably, the water circulation device includes a water receiving trough located below the roller, a water leakage hole is provided on the upper part of the roller, the water receiving trough is funnel-shaped and has two valves at the bottom, and two cleaning boxes are provided below the water receiving trough, with the two valves respectively connected to the two cleaning boxes.

[0008] By adopting the above technical solution, the funnel-shaped design of the water receiving tank effectively collects wastewater generated during the cleaning process. Two valves at the bottom direct the wastewater to two separate cleaning tanks, achieving wastewater diversion and treatment. This design not only improves wastewater treatment efficiency but also avoids clogging problems that may occur with a single flow path, thereby enhancing the overall operational stability of the cleaning machine. Preferably, the cleaning tank is equipped with an inclined ramp, one end of which receives the water flow from the water receiving tank, and the other end has a magnetic roller. The cleaning tank also contains a scraper for brushing the magnetic roller.

[0009] By adopting the above technical solution, the inclined ramp inside the cleaning tank can effectively guide the water flow, allowing impurities in the water to flow smoothly to the magnetic roller, thereby improving the collection efficiency of impurities. The magnetic roller can adsorb iron impurities in the water, further improving the purity of the cleaning water. The scraper is used to scrape the magnetic roller to prevent excessive impurities from adsorbing onto the surface of the magnetic roller, which would affect the adsorption effect and ensure that the magnetic roller works continuously and efficiently. Preferably, each of the two cleaning tanks is arranged adjacent to a water tank, and the water tanks are connected to the cleaning tanks through pipes.

[0010] By adopting the above technical solution, the recycling of cleaning water is achieved. The coordinated design of the cleaning tank and water tank allows the pre-filtered cleaning water to be stored in the water tank and then transported to the spray pipes through pipelines, providing a continuous water supply for cleaning the parts inside the drum. This not only reduces water waste but also simplifies the water supply system of the cleaning device and improves cleaning efficiency.

[0011] Preferably, the drying device includes a heating chamber, a fan, a circulation pipe, and a pressurization chamber. The heating chamber is equipped with heating elements, and the fan forces the heated air out of the heating chamber. The heating chamber is connected to the pressurization chamber through a pipe, and the pressurization chamber is connected to the jet pipe through a pipe.

[0012] By adopting the above technical solution, the drying device can efficiently dry parts inside the drum. The heating element in the heating chamber heats the air, providing high-temperature hot air to ensure the temperature requirements of the drying process. A fan forces the heated air out, improving the efficiency and uniformity of hot air delivery and reducing drying time. The heating chamber is connected to a pressure chamber via pipelines, which further pressurizes the hot air, enhancing the jet force and allowing the hot air to more effectively cover the surface of the parts, improving the drying effect. The pressure chamber is connected to an air jet pipe via pipelines, precisely delivering the pressurized hot air into the drum to achieve comprehensive drying of the parts and prevent residual moisture.

[0013] Preferably, the circulation pipe is located above the inside of the drum, and air holes are opened on the surface of the circulation pipe. The circulation pipe is connected to the heating box through a pipeline, and the circulation pipe uses the negative pressure formed in the heating box to evacuate air from the inside of the drum.

[0014] By adopting the above technical solution, the circulation pipe is located inside the upper part of the drum and has air holes, which can effectively utilize the negative pressure formed in the heating box to extract air from the inside of the drum. This design not only promotes the rapid discharge of air from the drum, but also accelerates the evaporation of water vapor inside the drum, thereby improving drying efficiency. At the same time, since the circulation pipe is connected to the heating box, the negative pressure formed helps to distribute hot air evenly inside the drum, further improving the drying effect and energy utilization efficiency.

[0015] Preferably, one end of the spray pipe extending into the drum is fixedly connected to a connecting branch pipe, and the two ends of the connecting branch pipe are respectively connected to the two water tanks through pipelines. A first rotating shaft is provided inside the connecting branch pipe, and a turbo fan is provided at each of the two ends of the first rotating shaft near the connecting branch pipe.

[0016] By adopting the above technical solution, the two ends of the connecting branch pipe are connected to two water tanks respectively, allowing the spray pipe to receive water supply from both water tanks simultaneously, thereby improving the stability of water flow during the cleaning process. The first rotating shaft and the turbine fans at both ends of the first rotating shaft installed inside the connecting branch pipe can drive the turbine fans to rotate when water flows through, thereby generating a certain fluid stirring effect, making the water flow more evenly distributed in the spray pipe, improving cleaning efficiency and cleaning effect.

[0017] Preferably, the connecting branch pipe is connected to the pressurizing box, and a pressurizing cylinder is rotatably arranged inside the pressurizing box via a second rotating shaft. The pressurizing cylinder is provided with driven teeth, and a drive gear that meshes with the driven teeth is provided on the second rotating shaft.

[0018] By adopting the above technical solution, the connecting branch pipe is connected to the pressurization box, allowing water to enter the pressurization box and using the kinetic energy of the water to drive the second rotating shaft. The pressurization cylinder inside the pressurization box rotates synchronously through the meshing of the driven gear with the drive gear on the second rotating shaft. This design effectively improves the efficiency of the pressurization process, while utilizing a mechanical transmission structure to convert the kinetic energy of the water into pressurization power, reducing additional energy consumption and improving the overall energy-saving and environmentally friendly performance of the equipment.

[0019] Preferably, the pressure cylinder has a fan-shaped cross-section, and the surface of the pressure cylinder abuts against the inner wall of the pressure chamber through a sealing strip. A partition plate is provided at the bottom of the pressure cylinder, and the top of the partition plate supports the second rotating shaft of the pressure cylinder. The partition plate and the pressure cylinder divide the interior of the pressure chamber into a pressure chamber and a compression chamber. The pressure chamber and the compression chamber are respectively connected to the heating chamber through pipelines. A one-way valve connecting the pressure chamber and the compression chamber is provided on the partition plate.

[0020] By adopting the above technical solution, the pressure cylinder has a fan-shaped cross-section, which effectively increases the contact area with the inner wall of the pressure chamber, achieving more efficient gas compression and transmission during rotation. The sealing strip further improves the sealing performance between the pressure cylinder and the inner wall of the pressure chamber, preventing gas leakage and ensuring the stability and reliability of the pressurization process. The partition plate divides the interior of the pressure chamber into a pressurization chamber and a compression chamber. Combined with the use of a one-way valve, this enables directional gas flow between different chambers, preventing gas backflow and significantly improving the pressurization efficiency and drying effect of the hot gas.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The drum cleans and discharges parts by rotating. Combined with the continuous water flow provided by the water circulation device, it can effectively reduce the multiple transfers of parts and improve cleaning efficiency. 2. The drying device works in conjunction with the drum to dry the parts with hot air, ensuring that the parts are dried quickly after cleaning and further improving the overall operating efficiency. 3. The entire unit integrates cleaning and drying functions, simplifying the operation process and meeting the needs of modern industry for high-efficiency and high-quality production. Attached Figure Description

[0022] Figure 1 This is a 3D view of a single-station dual-liquid drum cleaning machine.

[0023] Figure 2 This is a partial view of a single-station dual-liquid drum cleaning machine.

[0024] Figure 3 This is a cross-sectional view of a single-station dual-liquid drum cleaning machine.

[0025] Figure 4 It is a cross-sectional view of the internal structure of the pressurization box and connecting branch pipes.

[0026] Figure 5 This is a cross-sectional view of the internal structure of the cleaning box.

[0027] Explanation of reference numerals in the attached drawings: 11. Water receiving tank; 12. Cleaning box; 121. Slope plate; 122. Magnetic roller; 123. Scraper; 13. Water tank; 21. Heating box; 211. Heating element; 212. Fan; 213. Pressurization box; 214. Circulation pipe; 31. Roller; 311. Drain hole; 312. Spiral blade; 32. Spray pipe; 33. Spray hole; 34. Air jet pipe; 35. Air jet nozzle; 4. Connecting branch pipe; 411. First rotating shaft; 412. Second rotating shaft; 42. Turbine fan; 43. Drive gear; 44. Pressurization cylinder; 45. Driven gear; 46. Pressurization chamber; 47. Extrusion chamber; 48. Divider plate; 49. One-way valve; 10. Housing. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] In the description of the invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention 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 limiting the invention.

[0030] This application discloses a single-station dual-liquid drum cleaning machine, referring to... Figure 1 and Figure 3 The device includes a housing 10, a drum 31, a water circulation device, and a drying device. The inner surface of the drum 31 is provided with spiral blades 312, which are segmented. In this embodiment, the spiral blades 312 are in two segments, broken near the middle of the drum 31, creating a larger volume area in the middle of the drum 31 compared to other parts. The drum 31 rotates to clean and discharge the parts. For example, if the drum 31 rotates in one direction, the parts will remain inside and tumble, corresponding to the cleaning process of the drum 31. Conversely, if the drum 31 is rotated in the opposite direction to the cleaning direction, the parts inside the drum 31 will be discharged, a process suitable for unloading the cleaned parts.

[0031] Reference Figure 1 , Figure 2 and Figure 3The water circulation device provides a continuous water flow for the cleaning process, and the drying device is used to dry the cleaned parts. Therefore, this application also has the function of circulating water and hot air to meet the current requirements of energy conservation and environmental protection. Specifically, for water circulation, a spray pipe 32 is provided inside the drum 31, and an air jet pipe 34 is provided inside the spray pipe 32. The spray pipe 32 and the air jet pipe 34 receive water from the water circulation device and air from the drying device, respectively. Several spray holes 33 are opened on the spray pipe 32. In order to improve cleaning efficiency, the spray holes 33 can also be set as high-pressure nozzles. The spray holes 33 spray water evenly inside the drum 31, which facilitates rinsing of parts. In addition, in order to improve the water-saving performance of the equipment, the water circulation device includes a water receiving tank 11 located below the drum 31, which is used to recover cleaning water. A drain hole 311 is provided on the upper part of the roller 31. The drain hole 311 allows water to flow through but prevents parts from passing through. The drain hole 311 is circumferentially arranged around the roller 31 and directly connects to the water tank 11, facilitating water flow into the water tank 11. The water tank 11 is funnel-shaped and has two valves at the bottom. Both valves are electrically controlled and their opening and closing are independently controlled. Two cleaning boxes 12 are located below the water tank 11, and the two valves are connected to the two cleaning boxes 12 respectively. Each of the two cleaning boxes 12 has an adjacent water tank 13. The water tank 13 is connected to the cleaning boxes 12 through a pipe, allowing water in the cleaning boxes 12 to flow into the water tank 13. The water tank 13 is used to supply water to the spray pipe 32. A water pump is used to pump the water in the water tank 13 back into the spray pipe 32 for spray cleaning again, thereby realizing a water circulation process. By setting up two cleaning tanks 12 and two water tanks 13 that are individually connected to the two cleaning tanks 12, the water flowing out of the water receiving tank 11 can be diverted to different cleaning tanks 12 and water tanks 13 through two valves.

[0032] Reference Figure 5 The cleaning box 12 is equipped with an inclined ramp 121. One end of the ramp 121 receives the water flow from the water tank 11, and the other end is equipped with a magnetic roller 122. The cleaning box 12 is also equipped with a scraper 123 for scraping the magnetic roller 122. The magnetic roller 122 is driven by a motor to rotate. Since the parts are metal products, during the rotation and cleaning process in the drum 31, the burrs on the surface will inevitably be removed. When the cleaning water passes through the magnetic roller 122, the magnetic roller 122 will attract the magnetic metal in the water flow, preventing small metal debris from damaging the parts. The scraper 123 contacts the top of the magnetic roller 122, and therefore forms an angle with the side wall of the cleaning box 12. The scraped metal debris will be collected on the top of the scraper 123. A reserved opening is provided in the cleaning box 12 at the position corresponding to the top of the scraper 123, and the reserved hole facilitates the timed cleaning of metal debris.

[0033] Reference Figure 1, Figure 3 and Figure 4 For air circulation, the drying device includes a heating chamber 21, a fan 212, a circulation pipe 214, and a pressurization chamber 213. The heating chamber 21 is equipped with a heating element 211, which heats the air inside. The fan 212 forces the heated air out of the heating chamber 21. The heating chamber 21 is connected to the pressurization chamber 213 via a pipe, and the pressurization chamber 213 is connected to the jet pipe 34 via a pipe. The pressurization chamber 213 increases the pressure of the hot air, allowing it to carry more moisture when ejected from the jet nozzle 35, thus improving the drying process for the parts. One end of the spray pipe 32 extending out of the roller 31 is fixedly connected to a connecting branch pipe 4. Both ends of the connecting branch pipe 4 are connected to two water tanks 13 via pipes. A first rotating shaft 411 is installed inside the connecting branch pipe 4, and turbofans 42 are installed at both ends of the first rotating shaft 411 near the connecting branch pipe 4. The connecting branch pipe 4 is connected to the pressurizing box 213. A pressurizing cylinder 44 is rotatably mounted inside the pressurizing box 213 via a second rotating shaft 412. The connection between the connecting branch pipe 4 and the pressurizing box 213 is sealed by the pressurizing cylinder 44. The roller 31 is a lightweight hollow plastic cylinder with an impermeable surface to the interior. A driven gear 45 is mounted on the pressurizing cylinder 44, and a drive gear 43 meshes with the driven gear 45 on the first rotating shaft 411. The water flow injected into both ends of the connecting branch pipe 4 drives the turbine fan 42 to rotate. When the turbine fan 42 rotates, it drives the pressurizing cylinder 44 to rotate along the second rotating shaft 412 via the drive gear 43 and the driven gear 45. Because the smaller drive gear 43 drives the larger driven gear 45, the rotation of the pressurizing cylinder 44 has high torque. Since the rotation of the turbine fan 42 is driven by water flow, the drive gear 43 also has high torque during rotation.

[0034] The pressure cylinder 44 has a fan-shaped cross-section. Its surface abuts against the inner wall of the pressure chamber 213 via a sealing strip. A partition plate 48 is installed at the bottom of the pressure cylinder 44, and the top of the partition plate 48 supports the second rotating shaft 412 of the pressure cylinder 44. The partition plate 48 and the pressure cylinder 44 divide the interior of the pressure chamber 213 into a pressure chamber 46 and a compression chamber 47. The pressure cylinder 44 and the sealing strip ensure a certain degree of airtightness in the pressure chamber 46 and the compression chamber 47. The pressure chamber 46 and the compression chamber 47 are connected to the heating chamber 21 via pipelines. Solenoid valves are installed at the pipe openings of these pipelines for operator control or automatic control of opening and closing times. A one-way valve 49 connecting the pressure chamber 46 and the compression chamber 47 is installed on the partition plate 48. The pressurized hot air will be ejected by several jet nozzles 35 opened on the jet pipe 34, and the jet nozzles 35 will all extend out of the spray pipe 32 towards the bottom of the spray pipe 32.

[0035] The circulation pipe 214 is located inside the upper part of the roller 31. The surface of the circulation pipe 214 has air holes. The circulation pipe 214 is connected to the heating box 21 through a pipeline. When the hot air in the heating box 21 is pumped into the pressurization box 213 by the fan 212, a negative pressure will be formed inside the heating box 21. The circulation pipe 214 uses the negative pressure formed inside the heating box 21 to draw air from the inside of the roller 31, thereby completing the air circulation process.

[0036] The implementation principle of this application embodiment is as follows: The single-station dual-liquid drum cleaning machine provided in this application adopts a single-station setting, which can complete the cleaning and drying process of parts without the need to transfer the parts a second time during the cleaning process.

[0037] Unwashed parts are fed into the drum 31. As the drum 31 rotates, a water circulation device simultaneously sprays water into the drum. Since the water circulation device uses two independent water tanks 13 and a cleaning tank 12 forming two separate paths, cleaning fluid can be sprayed before water spraying. The cleaning fluid is sprayed first. As the drum 31 rotates, some parts accumulate in the open area between the spiral blades 312, facilitating thorough mixing of the cleaning fluid and the parts. During the spraying process, the cleaning fluid is constantly circulating, cleaning the fine surfaces of the parts and improving the cleaning effect. After using the cleaning fluid, clean water is sprayed out through the water tank 13, water pump, and spray pipe 32 to rinse the cleaning fluid. The rinsing with cleaning fluid and clean water are two sequential processes. When recovering the cleaning fluid and clean water, two independently controlled valves are used to guide the flow, allowing for the separate circulation of the cleaning fluid and clean water.

[0038] After the parts are cleaned, they need to be dried. During this process, the cleaning fluid and clean water enter from two directions through the connecting branch pipe 4, thus driving the turbine fan 42 to rotate in different directions. This causes the pressure cylinder 44 to rotate in two directions, forming an oscillating motion trajectory. Through reasonable settings, the pressure cylinder 44 first oscillates towards the pressure chamber 46, reducing its volume. Before the pressure cylinder 44 oscillates towards the pressure chamber 46, the fan 212 fills the pressure chamber 46 with hot air. Then, with the oscillation of the pressure cylinder 44, the air in the pressure chamber 46 is pressurized. When the pressure cylinder 44 compresses the volume of the pressure chamber 46 to its lowest point, which corresponds to the cleaning fluid just finishing and preparing to switch to spraying clean water, the fan 212 fills the pressure cylinder with hot air. As clean water is supplied, the pressure cylinder 44 rotates toward the extrusion chamber 47, compressing the volume of the extrusion chamber 47. The air in the extrusion chamber 47 enters the pressure chamber 46 through the one-way valve 49, causing the air pressure in the pressure chamber 46 to increase rapidly. When the clean water supply to the drum 31 stops, it means that the cleaning process of the parts has been completed, and the drying device will begin to dry the parts. The pressurized hot air in the pressure chamber 46 will be rapidly sprayed out through the jet pipe 34 and jet nozzle 35. During this process, the drum 31 rotates synchronously, drying the parts with hot air, while the circulation pipe 214 set at the top of the spray pipe 32 circulates and recovers the hot air in the drum 31.

[0039] The pressure cylinder 44 provides a certain storage capacity for hot air in the pressure chamber 46. However, due to the limited volume of the pressure chamber 46, only one batch of high-pressure hot air can be produced during the supply of cleaning fluid and water. In this application, a bypass is used to directly send the hot air blown out by the blower 212 into the drum 31 to ensure that the cleaning machine completes the complete cleaning process.

[0040] This application also includes other rational designs for enabling the cleaning machine to operate normally, and these similar designs are common practice in the art and should not be construed as limiting this application.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A single-station dual-liquid drum cleaning machine, characterized in that: It includes a drum (31), a water circulation device and a drying device. The inner surface of the drum (31) is provided with spiral blades (312). The spiral blades (312) adopt a segmented design. The drum (31) achieves the cleaning of parts and the discharge of cleaned parts by rotating. The water circulation device provides a continuous water flow for the cleaning process. The drying device is used to dry the cleaned parts. A spray pipe (32) is provided inside the drum (31), and an air jet pipe (34) is provided inside the spray pipe (32). The spray pipe (32) and the air jet pipe (34) are respectively supplied with water by the water circulation device and air by the drying device. A number of water spray holes (33) are opened on the spray pipe (32), and a number of air jet nozzles (35) are opened on the air jet pipe (34). The air jet nozzles (35) all extend out of the spray pipe (32) towards the bottom of the spray pipe (32). One end of the spray pipe (32) extending out of the roller (31) is fixedly connected to a connecting branch pipe (4). The two ends of the connecting branch pipe (4) are respectively connected to two water tanks (13) through pipelines. A first rotating shaft (411) is provided inside the connecting branch pipe (4). Turbine fans (42) are respectively provided at the two ends of the first rotating shaft (411) near the connecting branch pipe (4). The connecting branch pipe (4) is connected to the pressure box (213). The pressure box (213) is rotatably provided with a pressure cylinder (44) through the second rotating shaft (412). The pressure cylinder (44) is provided with a driven tooth (45). The first rotating shaft (411) is provided with a drive gear (43) that meshes with the driven tooth (45). The cross-section of the pressure cylinder (44) is fan-shaped. The surface of the pressure cylinder (44) abuts against the inner wall of the pressure box (213) through a sealing strip. A partition plate (48) is provided at the bottom of the pressure cylinder (44). The top of the partition plate (48) supports the second rotating shaft (412) of the pressure cylinder (44). The partition plate (48) and the pressure cylinder (44) divide the interior of the pressure box (213) into a pressure chamber (46) and a compression chamber (47). The pressure chamber (46) and the compression chamber (47) are respectively connected to the heating box (21) through pipelines. A one-way valve (49) connecting the pressure chamber (46) and the compression chamber (47) is provided on the partition plate (48). The cleaning fluid and water will enter from two directions of the connecting branch pipe (4), so the direction of rotation of the turbine fan (42) is also different, thus causing the pressure cylinder (44) to rotate in two directions to form an oscillating motion trajectory.

2. The single-station dual-liquid drum cleaning machine according to claim 1, characterized in that: The water circulation device includes a water receiving trough (11) located below the roller (31). A water leakage hole (311) is provided on the roller (31). The water receiving trough (11) is funnel-shaped and has two valves at the bottom. Two cleaning boxes (12) are provided below the water receiving trough (11). The two valves are respectively connected to the two cleaning boxes (12).

3. The single-station dual-liquid drum cleaning machine according to claim 2, characterized in that: The cleaning box (12) is provided with an inclined ramp (121). One end of the ramp (121) receives the water flow from the water tank (11), and a magnetic roller (122) is provided at the other end. The cleaning box (12) is also provided with a scraper (123) for scraping the magnetic roller (122).

4. A single-station dual-liquid drum cleaning machine according to claim 2, characterized in that: Each of the two cleaning boxes (12) is provided with a water tank (13) adjacent to each other, and the water tank (13) and the cleaning box (12) are connected by a pipe.

5. A single-station dual-liquid drum cleaning machine according to claim 1, characterized in that: The drying device includes a heating box (21), a fan (212), a circulation pipe (214), and a pressurization box (213). The heating box (21) is equipped with a heating element (211). The fan (212) forces the hot air heated by the heating element (211) out of the heating box (21). The heating box (21) is connected to the pressurization box (213) through a pipe. The pressurization box (213) is connected to the jet pipe (34) through a pipe.

6. A single-station dual-liquid drum cleaning machine according to claim 5, characterized in that: The circulation pipe (214) is located above the inside of the drum (31). The surface of the circulation pipe (214) is provided with air holes. The circulation pipe (214) is connected to the heating box (21) through a pipeline. The circulation pipe (214) uses the negative pressure formed in the heating box (21) to evacuate the inside of the drum (31).

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