A cleaning apparatus for aluminum alloy processing and an operating method thereof

Abstract

This invention relates to the technical field of cleaning equipment, and discloses a cleaning device for aluminum alloy processing and its operating method. To solve the problem of the difficulty in adjusting the brush roller spacing, the meshing transmission between the driving gear and the driven gear forces the aluminum alloy sheet entering between the bottom cleaning roller and the top cleaning roller to be conveyed backward while being brushed. In addition, an adjustable top spring is connected between the top cleaning roller and the central shaft. When the aluminum alloy sheet enters between the bottom cleaning roller and the top cleaning roller, the thickness of the sheet itself will cause the top cleaning roller to compress the adjustable top spring upward, thereby ensuring that the sheet passes through the gap between the bottom cleaning roller and the top cleaning roller. Due to the elastic force of the adjustable top spring, the spacing between the bottom cleaning roller and the top cleaning roller can be adjusted within a certain range, thereby brushing aluminum alloy sheets of different thicknesses, and finally achieving the effect of adaptively adjusting the brush roller spacing for cleaning the sheet.

Description

Technical Field

[0001] This invention relates to the technical field of cleaning equipment, and in particular to a cleaning device for aluminum alloy processing and its operating method. Background Technology

[0002] The core objective of aluminum alloy cleaning is to thoroughly remove oil, scale, dust, and other contaminants from its surface, thereby significantly improving the aesthetics, material quality, and durability of the aluminum alloy. Currently, the cleaning of aluminum alloy sheets generally adopts an automated assembly line operation method, in which the sheets are placed stably on a conveyor roller, and the upper and lower surfaces of the sheet are thoroughly and effectively cleaned using an upper and lower brush structure.

[0003] However, in practical applications, the diverse thicknesses of aluminum alloy sheets place higher demands on brush spacing adjustment. Unfortunately, currently widely used brush roller designs typically employ fixed spacing adjustments, lacking sufficient flexibility and adaptability to meet the cleaning needs of sheets of varying thicknesses. This fixed spacing design not only limits the cleaning equipment's ability to handle sheets of different thicknesses but also significantly reduces cleaning efficiency. Whenever a sheet of different thickness needs to be replaced, operators must manually adjust the brush spacing, a step that is not only time-consuming and labor-intensive but can also negatively impact cleaning effectiveness and even damage the sheet surface if improperly adjusted. Summary of the Invention

[0004] This invention proposes a cleaning device for aluminum alloy processing and its operating method, which has the advantage of adaptively adjusting the brush roller spacing, thereby solving the problem of the difficulty in adjusting the brush roller spacing mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device for aluminum alloy processing, comprising: a support base with a feeding roller for conveying aluminum alloy sheets mounted on its surface; a cleaning bottom roller mounted on the support base and driven by a motor fixed on the support base, with a drive gear fixed at the end of the cleaning bottom roller; and a central shaft mounted on the support base and located above the cleaning bottom roller, with a driven gear meshing with the external teeth of the drive gear mounted at its end, and a cleaning top roller connected to its outer side via an adjusting top spring.

[0006] Furthermore, brushes are provided on the outer sides of both the bottom and top cleaning rollers.

[0007] Furthermore, a rear guide frame is fixedly installed on the support base, a rear pressure plate is installed on the rear guide frame, and a tension spring connects the rear pressure plate and the rear guide frame; a fixed magnetic block is fixedly installed at the bottom of the rear guide frame, and a movable magnetic block that is attracted to the magnetic properties of the fixed magnetic block is fixedly installed at the end of the rear pressure plate; a guide tooth row is movably installed on one side of the support base, and the guide tooth row meshes with a partial gear fixed at the end of the drive gear; a magnetic shielding baffle is installed at the end of the guide tooth row, and a reset push spring connects the guide tooth row and the support base.

[0008] Furthermore, a front guide frame is fixedly installed on the support base, and a front pressure plate is movably installed in the front guide frame. A synchronous connecting frame is fastened to the top of the front pressure plate, and the other end of the synchronous connecting frame is connected to the rear pressure plate by the magnetic attraction of the movable magnetic block.

[0009] Furthermore, a limiting rod is movably installed at the end of the front pressure plate, and an adjusting screw is threaded to the top of the limiting rod. A limiting spring is connected between the adjusting screw and the front pressure plate.

[0010] Furthermore, the tooth profile of the guide tooth row is an isosceles right triangle.

[0011] Furthermore, the support base is threaded with limiting bolts to block the magnetic shielding baffle.

[0012] Furthermore, a damping hydraulic cylinder is connected to the front guide frame, and a damping piston rod is movably installed inside the damping hydraulic cylinder. The top of the damping piston rod is fixedly connected to the synchronous connecting frame. A buffer chamber is opened inside the damping hydraulic cylinder, and a damping hole and a one-way valve communicating with the buffer chamber are opened at the bottom of the damping hydraulic cylinder.

[0013] Furthermore, hydraulic oil is injected into the buffer chamber, and a drive hydraulic cylinder is fixedly connected to the rear guide frame. A drive piston rod is movably installed in the drive hydraulic cylinder, and the hydraulic chamber inside the drive hydraulic cylinder is connected to the buffer chamber via a hydraulic delivery pipe.

[0014] An operating method for a cleaning device used in aluminum alloy processing includes the following steps:

[0015] S1. Place the aluminum alloy sheet to be cleaned on the feed roller;

[0016] S2. The material is transported smoothly and continuously to the area between the bottom cleaning roller and the top cleaning roller by the conveying action of the conveying roller;

[0017] S3. Cleaning liquid is sprayed between the bottom cleaning roller and the top cleaning roller through an external cleaning liquid spraying mechanism.

[0018] S4. Utilizing the thickness of the plate itself, the cleaning top roller is forced to move upward and the adjusting top spring is compressed;

[0019] S5. The motor drives the bottom cleaning roller to rotate, and through the meshing transmission of the drive gear and the driven gear, it further drives the top cleaning roller to rotate synchronously.

[0020] S6. With the synchronous rotation of the bottom cleaning roller and the top cleaning roller, the surface of the board is effectively brushed and conveyed forward as the rollers rotate.

[0021] S7. Continue until the aluminum alloy sheet has completely passed through the area between the bottom cleaning roller and the top cleaning roller. At this point, the cleaning of the sheet is complete.

[0022] The present invention has the following beneficial effects:

[0023] This invention provides a cleaning device and its operating method for aluminum alloy processing. The device employs a precise meshing transmission between a driving gear and a driven gear, enabling the aluminum alloy sheet to be effectively brushed and smoothly conveyed backward during the cleaning process. This design ensures the high efficiency and continuity of the cleaning operation.

[0024] Furthermore, the core of the cleaning device consists of a bottom cleaning roller and a top cleaning roller, forming an adjustable cleaning channel between them. The top cleaning roller is not fixed but connected to the central shaft via an adjusting spring. When the aluminum alloy sheet is fed into this cleaning channel, the thickness of the sheet itself naturally exerts an upward pressure on the top cleaning roller, forcing it to move upward along the central axis and compress the adjusting spring. This process not only ensures that the sheet can smoothly pass through the narrow gap between the bottom and top cleaning rollers but also achieves dynamic adjustment of the cleaning channel spacing through the elastic feedback of the adjusting spring.

[0025] The adjustable top spring design allows the gap between the cleaning bottom roller and the cleaning top roller to be flexibly adjusted within a preset range, thus adapting to the cleaning needs of aluminum alloy sheets of various thicknesses. This adaptive adjustment mechanism ensures a uniform and effective cleaning effect regardless of the sheet thickness, avoiding uneven cleaning or equipment damage caused by differences in sheet thickness.

[0026] In summary, this aluminum alloy processing and cleaning equipment, by combining precise gear transmission, innovative adjustable top spring design, and efficient brushing system, has successfully achieved adaptive cleaning of aluminum alloy sheets of different thicknesses, greatly improving cleaning efficiency and quality, and bringing significant technological progress to the aluminum alloy processing industry. Attached Figure Description

[0027] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0028] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0029] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the cleaning part in this invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the workpiece clamping part in this invention;

[0032] Figure 4 A schematic diagram of the three-dimensional structure of the guide tooth row;

[0033] Figure 5 This is a schematic diagram of the installation position of the rear pressure plate and the three-dimensional structure of its components in this invention;

[0034] Figure 6 This is a schematic diagram of the installation position of the front pressure plate and the three-dimensional structure of its components in this invention;

[0035] Figure 7 for Figure 6 A magnified schematic diagram of the structure of E in the middle.

[0036] In the diagram: 1. Support base; 2. Feeding roller; 3. Cleaning bottom roller; 4. Motor; 5. Cleaning top roller; 6. Central shaft; 600. Adjustable top spring; 7. Front guide frame; 8. Front pressure plate; 9. Rear guide frame; 10. Tension spring; 11. Rear pressure plate; 12. Synchronous connecting frame; 13. Damping hydraulic cylinder; 130. Buffer chamber; 131. Damping piston rod; 132. Damping hole; 133. One-way valve; 14. Driving gear; 15. Partial gear; 16. Driven gear; 17. Guide gear row; 170. Return push spring; 18. Magnetic shielding baffle; 19. Limit bolt; 20. Limiting rod; 21. Adjusting screw; 22. Limiting spring; 23. Drive piston rod; 24. Drive hydraulic cylinder; 240. Hydraulic chamber; 25. Fixed magnetic block; 26. Movable magnetic block; 27. Return spring. Detailed Implementation

[0037] 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.

[0038] Example 1, please refer to Figure 1As can be seen, the support base 1 can be fixed in the required position using the pre-drilled cylindrical holes at the bottom. Multiple conveying rollers 2 are movably installed on the support base 1. It should be noted that the multiple conveying rollers 2 can rotate synchronously through belts or chains (the transmission structure diagram is not shown in the figure), so that the aluminum alloy plate placed on the conveying rollers 2 can be conveyed forward, thus completing the conveying work of the aluminum alloy plate.

[0039] A cleaning roller 3, driven by a motor 4, is installed in the support base 1. The motor 4 is generally fixed to the support base 1. (See reference...) Figure 2 It can be seen that a drive gear 14 is coaxially fixedly installed at the end of the cleaning bottom roller 3. Correspondingly, a central shaft 6 is movably installed on the support base 1 above the cleaning bottom roller 3, and a driven gear 16 that meshes with the external teeth of the drive gear 14 is coaxially fixedly installed at the end of the central shaft 6. Furthermore, a cleaning top roller 5 is connected to the outside of the central shaft 6 via an adjusting top spring 600, and the cleaning top roller 5 is located outside the central shaft 6. Figure 2 It is evident that there are multiple adjusting top springs 600, generally divided into six groups, with four adjusting top springs 600 in each group. These adjusting top springs 600 are arranged in a ring at equal angles around the central axis 6. The advantage of this design is that when the aluminum alloy sheet passes between the cleaning bottom roller 3 and the cleaning top roller 5, the cleaning top roller 5, due to the sheet thickness, can compress the adjusting top springs 600, thus ensuring that the aluminum alloy sheet can pass normally through the gap between the cleaning bottom roller 3 and the cleaning top roller 5. More specifically, the outer sides of the cleaning bottom roller 3 and the cleaning top roller 5 are generally equipped with brushes to scrub the passing aluminum alloy sheet, thereby removing oil, scale, dust, and other stains adhering to the aluminum alloy surface.

[0040] In practical applications, external cleaning fluid is sprayed between the bottom cleaning roller 3 and the top cleaning roller 5 (not shown in the spray mechanism diagram; a general spray head sufficient to meet the liquid medium spraying requirements is sufficient). The aluminum alloy sheet to be cleaned is placed on the conveying roller 2, which transports the sheet between the bottom cleaning roller 3 and the top cleaning roller 5. As the sheet passes between the bottom cleaning roller 3 and the top cleaning roller 5, the thickness of the sheet forces the top cleaning roller 5 to move upward and compress the adjusting spring 600, thus adapting the distance between the bottom cleaning roller 3 and the top cleaning roller 5 to the thickness of the aluminum alloy sheet.

[0041] When motor 4 drives the cleaning bottom roller 3 to rotate, the cleaning bottom roller 3, through the meshing transmission of the driving gear 14 and the driven gear 16, forces the central shaft 6 to drive the cleaning top roller 5 to rotate synchronously according to the adjusting top spring 600. The rotation of the cleaning bottom roller 3 and the cleaning top roller 5 achieves the brushing of the sheet material surface and its forward conveying. The cleaning process is completed when the aluminum alloy sheet material has completely passed between the cleaning bottom roller 3 and the cleaning top roller 5.

[0042] Example 2 is a further improvement on Example 1. To extend the cleaning time of the bottom cleaning roller 3 and the top cleaning roller 5 on the aluminum alloy sheet, please refer to [link to example]. Figure 1 , Figure 3 and Figure 4 It can be seen that a rear guide frame 9 is fixedly installed on the support base 1 at the sheet material output section between the bottom cleaning roller 3 and the top cleaning roller 5. A rear pressure plate 11 is installed on the rear guide frame 9. Specifically, the rear pressure plate 11 can only move vertically up and down along the rear guide frame 9. When the aluminum alloy sheet moves to the bottom of the rear pressure plate 11, the rear pressure plate 11 presses down on the aluminum alloy sheet, thereby restricting the movement of the sheet. Furthermore, to achieve clamping / releasing of the sheet by the rear pressure plate 11, three tension springs 10 are connected between the rear pressure plate 11 and the rear guide frame 9. Under the elastic force of the tension springs 10, the tension springs 10 always have a tendency to pull the rear pressure plate 11 upward, thereby achieving the upward movement of the rear pressure plate 11 and releasing the pressure on the aluminum alloy sheet; in contrast, combined with... Figure 5 It can be clearly seen that a fixed magnetic block 25 is fixedly installed at the bottom of the rear guide frame 9, and a movable magnetic block 26 located above the fixed magnetic block 25 is fixedly installed at the end of the rear pressure plate 11. The fixed magnetic block 25 and the movable magnetic block 26 are magnetically attracted to each other, and the magnetic attraction between them is greater than the elastic tension of the tension spring 10, ensuring that the movable magnetic block 26 has a tendency to pull the rear pressure plate 11 downward under the magnetic attraction of the fixed magnetic block 25.

[0043] The guide tooth row 17 is movably arranged on one side of the support base 1 and located near the end of the rear pressure plate 11, in conjunction with... Figures 2-4As can be seen, a partial gear 15 is coaxially mounted on the driving gear 14, and the external teeth of the partial gear 15 mesh with the guide gear row 17. When the partial gear 15 rotates with the driving gear 14, the external teeth of the partial gear 15 can guide the guide gear row 17 to move linearly, thereby driving the magnetic shielding baffle 18, which is fastened to the guide gear row 17 by bolts, to move towards the fixed magnetic block 25 until the magnetic shielding baffle 18 blocks the fixed magnetic block 25, thereby breaking the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26. Since a reset spring 170 is connected between the guide gear row 17 and the support base 1, when the external teeth of the partial gear 15 move away from the guide gear row 17, the guide gear row 17 and the partial gear 15 no longer contact each other. Under the elastic force of the reset spring 170, the guide gear row 17 is forced to move away from the fixed magnetic block 25, thereby releasing the obstruction of the relative magnetic surfaces between the fixed magnetic block 25 and the movable magnetic block 26.

[0044] In practical applications, motor 4 drives the bottom cleaning roller 3 and top cleaning roller 5 to rotate synchronously. Furthermore, during the rotation of the local gear 15 driven by the drive gear 14, the external teeth of the local gear 15 periodically mesh with the guide gear row 17. When the external teeth on the local gear 15 are not meshing with the guide gear row 17, the guide gear row 17, under the elastic force of the return spring 170, causes the magnetic shielding baffle 18 to move relatively away from the fixed magnetic block 25. At this time, the relative magnetic surfaces between the fixed magnetic block 25 and the movable magnetic block 26 are not obstructed, and the magnetic attraction between them forces the rear pressure plate 11 to move downwards. The descending rear pressure plate 11 eventually presses against the aluminum alloy sheet that has already been cleaned between the bottom cleaning roller 3 and top cleaning roller 5. Because the sheet is now pressed by the rear pressure plate 11, its resistance to movement increases relatively. When the bottom cleaning roller 3 and top cleaning roller 5 rotate, relative sliding occurs between them and the aluminum alloy sheet, thereby prolonging the cleaning time of the bottom cleaning roller 3 and top cleaning roller 5 on the aluminum alloy sheet. As the driving gear 14 drives the local gear 15 to rotate continuously, the outer teeth of the local gear 15 mesh with the guide gear row 17. Under the influence of the rotation of the local gear 15, the meshed guide gear row 17 compresses the reset spring 170 and moves the magnetic shielding plate 18 between the fixed magnetic block 25 and the movable magnetic block 26, thereby breaking the magnetic attraction between them. Then, under the force of the tension spring 10, the rear pressure plate 11 tends to move upwards, thus releasing the pressure on the aluminum alloy sheet. With the continuous rotation between the cleaning bottom roller 3 and the cleaning top roller 5, the aluminum alloy sheet is moved a certain distance. When the local gear 15 rotates and disengages from the guide gear row 17, under the force of the reset spring 170, the guide gear row 17 moves the magnetic shielding plate 18 away from the fixed magnetic block 25 and releases the obstruction between the fixed magnetic block 25 and the movable magnetic block 26. The fixed magnetic block 25 and the movable magnetic block 26 descend again under magnetic attraction and press down on the aluminum alloy sheet, thereby restricting the movement of the aluminum alloy sheet. This cycle is repeated to increase the cleaning time of the aluminum alloy sheet.

[0045] Based on this, combined Figure 1 and Figure 3 It can be clearly seen that a front guide frame 7 is fixedly installed on the support base 1 at the material input section between the bottom cleaning roller 3 and the top cleaning roller 5, and a front pressure plate 8 is movably installed in the front guide frame 7. The front pressure plate 8 is restricted by the front guide frame 7, allowing it to move only up and down along the front guide frame 7. Furthermore, referring to… Figure 3 , Figure 5 and Figure 6It can be clearly seen that the top of the front pressure plate 8 has a synchronous connecting frame 12 fastened with bolts. The synchronous connecting frame 12 is U-shaped, with one end used for fixed connection with the front pressure plate 8, and the other end magnetically attracted by the movable magnetic block 26, thus realizing the magnetic connection between the synchronous connecting frame 12 and the rear pressure plate 11. In actual application, when the rear pressure plate 11 moves up and down, the synchronous connecting frame 12 drives the front pressure plate 8 to move up and down synchronously. This ensures that when the rear pressure plate 11 presses the plate, the front pressure plate 8 will also press the plate, ensuring that the aluminum alloy plate is pressed and limited before and after washing, and preventing the plate from shifting during the washing process of the bottom washing roller 3 and the top washing roller 5, which would cause its position to deviate.

[0046] Example 3 is a further improvement on Example 2. Example 3 aims to achieve controllable brushing time for the aluminum alloy sheet between the bottom cleaning roller 3 and the top cleaning roller 5. Please refer to [link / reference]. Figure 3 and Figure 6 It can be seen that a limiting rod 20 is movably mounted at the end of the front pressure plate 8, and an adjusting screw 21 is threadedly connected to the top of the limiting rod 20. Specifically, a limiting spring 22 is connected between the adjusting screw 21 and the front pressure plate 8. When the front pressure plate 8 moves downward, it will drive the limiting rod 20 to move downward synchronously until the bottom of the limiting rod 20 abuts against the guide tooth row 17. It should be noted that from Figure 4 As can be seen, the tooth profile of the guide tooth row 17 is an isosceles right triangle. By using the limiting push rod 20 to move along the outer teeth of the guide tooth row 17, the purpose of unidirectional motion restriction can be achieved.

[0047] Specifically, when the external teeth on the local gear 15 move away from the guide gear row 17, the reset spring 170 pushes the magnetic shielding baffle 18 away from the fixed magnetic block 25. At this time, the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26 forces the rear pressure plate 11 and the front pressure plate 8 to move down synchronously, ultimately pressing the aluminum alloy sheet. At the same time, the downward movement of the front pressure plate 8 will drive the limiting rod 20 to move down synchronously until the limiting rod 20 touches the guide gear row 17. It should be noted that since the bottom end of the limiting spring 22 is fixedly connected to the front pressure plate 8 and the top end is fixedly connected to the adjusting screw 21, when the limiting rod 20 touches the guide gear row 17, the continuing downward movement of the front pressure plate 8 will drag the limiting spring 22 to stretch synchronously, thereby ensuring that the limiting rod 20 always touches the external teeth of the guide gear row 17.

[0048] Subsequently, as the motor 4 drives the cleaning bottom roller 3 and the cleaning top roller 5 to rotate synchronously, the upper and lower surfaces of the aluminum alloy sheet are brushed. At the same time, when the drive gear 14 drives the local gear 15 to move, the outer teeth of the local gear 15 push the guide gear row 17 to move, causing the magnetic shielding baffle 18 to approach the fixed magnetic block 25. At this time, when the guide gear row 17 moves horizontally, the inclined surface of the outer teeth of the guide gear row 17 pushes the limiting rod 20 upward and further stretches the limiting spring 22. When the limiting rod 20 passes the outer teeth of the guide gear row 17, it will abut against the right angle surface of the outer teeth, thus preventing the guide gear row 17 from resetting under the elastic force of the reset push spring 170. This cycle continues until the local gear 15 rotates to the set number of revolutions, at which point the magnetic shielding baffle 18 moves between the fixed magnetic block 25 and the movable magnetic block 26, thereby blocking the space between the fixed magnetic block 25 and the movable magnetic block 26. Meanwhile, the rear pressure plate 11, pulled by the tension spring 10, drives the front pressure plate 8 to move upwards synchronously. The front pressure plate 8 eventually moves the limiting rod 20 away from the guide gear rack 17, releasing the limiting rod 20 from restricting the movement of the guide gear rack 17. When the driven gear 16 disengages from the guide gear rack 17, it resets under the force of the reset spring 170. Then, the magnetic attraction between the fixed magnet 25 and the movable magnet 26 forces the rear pressure plate 11 to drive the front pressure plate 8 downwards synchronously, and the limiting rod 20 presses against the guide gear rack 17 again. This cycle repeats, further extending the cleaning time of the cleaning bottom roller 3 and the cleaning top roller 5 on the aluminum alloy sheet.

[0049] The following is a detailed explanation of how the aforementioned local gear 15 rotates to the set number of revolutions. Figure 3 As can be seen, the rotation of the local gear 15 will force the guide gear row 17 to pull the magnetic shield 18 to move a rated distance toward the fixed magnetic block 25. In order to achieve the above purpose, it is only necessary to control the distance between the magnetic shield 18 and the fixed magnetic block 25. Specifically, the support base 1 is threaded with a limiting bolt 19 to block the magnetic shield 18. The limiting bolt 19 blocks the return distance of the magnetic shield 18, ensuring that the length between the magnetic shield 18 and the fixed magnetic block 25 remains consistent after the recovery. This requires the local gear 15 to rotate to the rated number of turns before the magnetic shield 18 can move to the fixed magnetic block 25.

[0050] Example 4 is a supplement to Example 3. To prevent the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26 from forcing the rear pressure plate 11 to drag the front pressure plate 8 downwards rapidly at the moment the magnetic shielding baffle 18 disengages from the fixed magnetic block 25, causing the guide tooth row 17 to not push the magnetic shielding baffle 18 to the limit bolt 19 before the limiting rod 20 has already moved downwards and restricted the movement of the guide tooth row 17, this Example 4 aims to prevent such a phenomenon. Please refer to [link to relevant documentation]. Figure 3 , Figure 6 and Figure 7As can be seen, the front guide frame 7 has a damping hydraulic cylinder 13 connected to the synchronous connecting frame 12 via clamps. A damping piston rod 131 is movably mounted inside the damping hydraulic cylinder 13. When the damping piston rod 131 moves up and down inside the damping hydraulic cylinder 13, it can change the internal pressure within the damping hydraulic cylinder 13. The top of the damping piston rod 131 is fixedly connected to the synchronous connecting frame 12, thus ensuring that the damping piston rod 131 can move synchronously with the synchronous connecting frame 12. Furthermore, a return spring 27 is connected between the damping hydraulic cylinder 13 and the damping piston rod 131. Under the elastic force of the return spring 27, the damping piston rod 131 is forced to always have a tendency to drag the synchronous connecting frame 12 downwards.

[0051] More importantly, the damping hydraulic cylinder 13 has a damping hole 132 at its bottom. When the pressure of the medium in the buffer chamber 130 inside the damping hydraulic cylinder 13 changes, the damping hole 132 can generate a damping effect, thereby buffering the changing pressure in the buffer chamber 130. At the same time, a one-way valve 133 is fixedly installed at the bottom of the damping hydraulic cylinder 13 on one side of the damping hole 132. The one-way valve 133 enables the one-way delivery of external medium to the buffer chamber 130, thereby ensuring that when the pressure in the buffer chamber 130 decreases, external medium can be quickly replenished into the buffer chamber 130. Taking air as an example, when the magnetic shielding baffle 18 moves between the fixed magnetic block 25 and the movable magnetic block 26, it will separate the relative magnetic surfaces between them. Under the elastic force of the tension spring 10, it will force the front pressure plate 8 and the synchronous connecting frame 12 to move upward synchronously. At the same time, when the synchronous connecting frame 12 drives the damping piston rod 131 to move upward, it will cause the pressure in the buffer chamber 130 to decrease, and the external airflow will be quickly injected into the buffer chamber 130 from the one-way valve 133. Afterward, when the magnetic shielding baffle 18 moves away from the fixed magnetic block 25, the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26 will force the movable magnetic block 26 to drag the rear pressure plate 11 downward quickly and press it onto the surface of the aluminum alloy plate. At this time, due to the downward pressing force of the synchronous connecting frame 12 and the elastic force of the return spring 27, the damping piston rod 131 is forced to compress the air in the buffer chamber 130. The air in the buffer chamber 130 can only be slowly discharged from the damping hole 132. This results in the synchronous connecting frame 12 and the front pressure plate 8 descending at a relatively lower speed than the rear pressure plate 11. Combined with the magnetic attraction between the synchronous connecting frame 12 and the rear pressure plate 11 using the magnetic attraction of the movable magnetic block 26, the synchronous connecting frame 12, which is subject to resistance, will separate from the movable magnetic block 26, thus ensuring that the front pressure plate 8 descends at a relatively low speed. This method ensures that under the push of the return spring 170, the magnetic shielding baffle 18 has enough time to move towards the limiting bolt 19 until the magnetic shielding baffle 18 abuts against the limiting bolt 19. As time goes by, the descending front pressure plate 8 will eventually drive the limiting push rod 20 to abut against the guide tooth row 17, thereby limiting the unidirectional movement of the guide tooth row 17.

[0052] Based on this, by injecting hydraulic oil into the buffer chamber 130, liquid medium damping and shock absorption are achieved. Specifically, in combination with... Figure 5 It can be seen that the rear guide frame 9 has a drive hydraulic cylinder 24 fixedly connected by a limiting base, and a drive piston rod 23 located below the rear pressure plate 11 is movably installed in the drive hydraulic cylinder 24. The hydraulic chamber 240 inside the drive hydraulic cylinder 24 is connected to the buffer chamber 130 via a hydraulic delivery pipe. Using this method, the same damping buffering effect as the air medium mentioned above can be achieved. In contrast, since the drive piston rod 23 is located below the rear pressure plate 11, when no aluminum alloy sheet is fed between the cleaning bottom roller 3 and the cleaning top roller 5, the front pressure plate 8 moves down synchronously with the rear pressure plate 11 under normal conditions. The front pressure plate 8 will block the aluminum alloy sheet from being conveyed between the cleaning bottom roller 3 and the cleaning top roller 5, which will obviously prolong the feeding time. To address this issue, the arrangement described above ensures that when no aluminum alloy sheet is present between the bottom cleaning roller 3 and the top cleaning roller 5, the rear pressure plate 11 will continuously descend due to the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26. This causes the rear pressure plate 11 to press against the drive piston rod 23, which then descends and squeezes the hydraulic oil in the hydraulic chamber 240. The hydraulic oil is then transported through the hydraulic delivery pipe to the buffer chamber 130, thereby pushing the damping piston rod 131 upward. Since the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26 is greater than the magnetic attraction of the movable magnetic block 26 to the synchronous connecting frame 12, when the amount of liquid oil in the buffer chamber 130 increases, it will push the synchronous connecting frame 12 to pull the front pressure plate 8 upward. The upward-moving front pressure plate 8 will not obstruct the input aluminum alloy sheet. At this time, the limiting rod 20, under the elastic force of the limiting spring 22, will still press against the guide tooth row 17. At the same time, as the rear pressure plate 11 presses down on the driving piston rod 23, the plate surface of the rear pressure plate 11 also moves downwards. When the aluminum alloy sheet is conveyed between the cleaning bottom roller 3 and the cleaning top roller 5, it will not be blocked by the front pressure plate 8. After passing between the cleaning bottom roller 3 and the cleaning top roller 5, the aluminum alloy sheet will come into contact with the side of the rear pressure plate 11, thereby restricting the aluminum alloy sheet from moving forward.

[0053] Finally, as the cleaning bottom roller 3 drives the drive gear 14 and the local gear 15 to rotate continuously, the local gear 15, through meshing with the guide gear row 17, forces the magnetic shielding baffle 18 to continuously move closer to the fixed magnetic block 25, until the magnetic shielding baffle 18 blocks the fixed magnetic block 25 and the movable magnetic block 26 relative to each other on the magnetic surface. Then, the rear pressure plate 11 and the front pressure plate 8 move upward synchronously. Under the rotation of the cleaning bottom roller 3 and the cleaning top roller 5, the aluminum alloy sheet is driven forward and positioned below the rear pressure plate 11. When the magnetic shielding baffle 18 moves away from the fixed magnetic block 25, the magnetic attraction between the fixed magnetic block 25 and the movable magnetic block 26 forces the rear pressure plate 11 to move downward and press against the aluminum alloy sheet. Due to the obstruction of the aluminum alloy sheet, the rear pressure plate 11 will not continue to move downward to press the drive piston rod 23. Afterward, the above process is repeated cyclically to ensure that the cleaning time of the sheet between the cleaning bottom roller 3 and the cleaning top roller 5 can be precisely controlled.

Claims

1. A cleaning device for aluminum alloy processing, characterized in that, include: The support base (1) has a conveying roller (2) for conveying aluminum alloy plates mounted on its surface. The bottom cleaning roller (3) is mounted on the support base (1) and driven by the motor (4) fixed on the support base (1). The end of the bottom cleaning roller (3) is fixed with a drive gear (14). The central shaft (6) is mounted on the support base (1) and located above the cleaning bottom roller (3). The end is equipped with a driven gear (16) that meshes with the external teeth of the drive gear (14). The outer side is connected to the cleaning top roller (5) through the adjusting top spring (600). Brushes are provided on the outer sides of both the bottom cleaning roller (3) and the top cleaning roller (5); A rear guide frame (9) is fixedly installed on the support base (1), a rear pressure plate (11) is installed on the rear guide frame (9), and a tension spring (10) is connected between the rear pressure plate (11) and the rear guide frame (9). A fixed magnetic block (25) is fixedly installed at the bottom of the rear guide frame (9), and a movable magnetic block (26) that is magnetically attracted to the fixed magnetic block (25) is fixedly installed at the end of the rear pressure plate (11). A guide toothed rack (17) is movably installed on one side of the support base (1), and the guide toothed rack (17) meshes with a local gear (15) fixed at the end of the drive gear (14). A magnetic shield (18) is installed at the end of the guide toothed rack (17), and a reset push spring (170) is connected between the guide toothed rack (17) and the support base (1). The support base (1) is threaded with a limiting bolt (19) to block the magnetic shield (18); When the local gear (15) rotates with the driving gear (14), the external teeth of the local gear (15) can drive the guide gear row (17) to move in a straight line, thereby driving the magnetic shield (18) on the guide gear row (17) to move towards the fixed magnetic block (25) until the magnetic shield (18) blocks the fixed magnetic block (25), thereby cutting off the magnetic attraction between the fixed magnetic block (25) and the movable magnetic block (26).

2. The cleaning equipment for aluminum alloy processing according to claim 1, characterized in that, A front guide frame (7) is fixedly installed on the support base (1), and a front pressure plate (8) is movably installed in the front guide frame (7). A synchronous connecting frame (12) is fastened to the top of the front pressure plate (8), and the other end of the synchronous connecting frame (12) is connected to the rear pressure plate (11) by the magnetic attraction of the movable magnetic block (26).

3. The cleaning equipment for aluminum alloy processing according to claim 2, characterized in that, A limiting rod (20) is movably installed at the end of the front pressure plate (8), and an adjusting screw (21) is threadedly connected to the top of the limiting rod (20). A limiting spring (22) is connected between the adjusting screw (21) and the front pressure plate (8).

4. The cleaning equipment for aluminum alloy processing according to any one of claims 1 or 3, characterized in that, The tooth profile of the guide tooth row (17) is an isosceles right triangle.

5. The cleaning equipment for aluminum alloy processing according to claim 4, characterized in that, A damping hydraulic cylinder (13) is connected to the front guide frame (7). A damping piston rod (131) is movably installed inside the damping hydraulic cylinder (13). The top of the damping piston rod (131) is fixedly connected to the synchronous connecting frame (12). The damping hydraulic cylinder (13) has a buffer chamber (130) inside, and a damping hole (132) and a one-way valve (133) communicating with the buffer chamber (130) are provided at the bottom of the damping hydraulic cylinder (13). Hydraulic oil is injected into the buffer chamber (130), and a drive hydraulic cylinder (24) is fixedly connected to the rear guide frame (9). A drive piston rod (23) is movably installed in the drive hydraulic cylinder (24). The hydraulic chamber (240) inside the drive hydraulic cylinder (24) is connected to the buffer chamber (130) via a hydraulic delivery pipe.

6. A method for operating a cleaning device for aluminum alloy processing, using the cleaning device for aluminum alloy processing as described in claim 1, characterized in that, Includes the following steps: S1. Place the aluminum alloy sheet to be cleaned on the feed roller (2); S2. Through the conveying action of the conveying roller (2), the plate is transported smoothly and continuously to the area between the bottom cleaning roller (3) and the top cleaning roller (5); S3. Cleaning liquid is sprayed between the bottom cleaning roller (3) and the top cleaning roller (5) through an external cleaning liquid spraying mechanism. S4. Utilizing the thickness of the plate itself, the cleaning top roller (5) is forced to move upward and compress the adjusting top spring (600). S5. The motor (4) drives the bottom cleaning roller (3) to rotate, and through the meshing transmission of the active gear (14) and the driven gear (16), it further drives the top cleaning roller (5) to rotate synchronously. S6. Under the synchronous rotation of the bottom cleaning roller (3) and the top cleaning roller (5), the surface of the plate is effectively brushed and conveyed forward as the rollers rotate. S7. Continue until the aluminum alloy sheet completely passes through the area between the bottom cleaning roller (3) and the top cleaning roller (5), at which point the cleaning of the sheet is completed.

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