Aluminum scrap recycling device

Abstract

This invention discloses an aluminum waste recycling device, comprising a drying chamber, a screening chamber, and a pressing machine. It further includes: a magnetic top, positioned at the top of the screening chamber; a guide plate, positioned on the bottom surface of the screening chamber with its end pointing towards the magnetic top; and an air jet station, positioned on the bottom surface of the screening chamber near the drying chamber, with its nozzles spraying air along the bottom surface of the screening chamber towards the upper surface of the guide plate. By incorporating the magnetic top, guide plate, and air jet station, after the screening chamber receives waste waste discharged from the drying chamber, the waste waste falls to the highest point on the bottom surface of the screening chamber and slides down. At this time, the airflow from the air jet station propels the waste waste rapidly along the bottom surface of the screening chamber towards the upper surface of the guide plate, and then flies towards the magnetic top along the end of the guide plate. Thus, some of the waste waste to be screened is automatically attracted to the magnetic top, while the aluminum scraps automatically fall and continue to slide down into the pressing machine, thereby preventing aluminum scraps from accumulating.

Description

Technical Field

[0001] This invention relates to the field of metal recycling technology, and more specifically to a device for recycling aluminum waste. Background Technology

[0002] A large amount of aluminum shavings are generated during the aluminum product processing. In order to recycle the aluminum shavings, they need to be crushed, dried, screened, briquetteed, and then heat-treated to be processed into aluminum products of a fixed shape. Existing aluminum shavings recycling equipment can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] Patent document CN220119888U discloses an aluminum scrap recycling and melting device, including a support leg and a melting furnace. A fixed frame is fixedly installed on the top of the support leg, a conveyor belt is arranged inside the fixed frame, a drying magnetic separation mechanism is arranged outside the fixed frame, and a stirring and mixing mechanism is arranged outside the melting furnace. In this aluminum scrap recycling and melting device, aluminum scrap is placed on the conveyor belt for transport, and the aluminum scrap on the conveyor belt is dried by a heater inside the drying hood. Water vapor generated during the drying process is discharged through an exhaust vent. After drying, the conveyor belt automatically feeds the aluminum scrap onto an electromagnetic plate. The electromagnetic plate is energized to generate magnetic force, which filters the aluminum scrap, causing iron filings to adhere to the electromagnetic plate. When too many iron filings adhere to the electromagnetic plate, an electric push rod retracts, causing the electromagnetic plate to flip to the left. Subsequently, the electromagnetic plate is de-energized and demagnetized, allowing the iron filings to automatically enter the waste scrap bin.

[0004] As mentioned in the above patent, pure aluminum shavings are screened out by magnetic separation. However, in this prior art, as the metal waste shavings slide down the inclined magnetic separation plate, the metal to be screened is easily adsorbed and accumulated at the high position. Furthermore, this part of the metal is magnetized after being attracted by the magnetic field, and then easily adsorbs another layer of metal, resulting in a stacking phenomenon. This hinders the sliding of aluminum shavings and causes aluminum shavings to remain. Therefore, there is an urgent need for an aluminum waste recycling device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum waste recycling device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An aluminum scrap recycling device includes a drying chamber, a screening chamber, and a pressing machine. The screening chamber is positioned between the drying chamber and the pressing machine to receive scrap discharged from the drying chamber, then screen out the aluminum scrap and feed it into the pressing machine, which compresses the aluminum scrap into aluminum cakes. The device also includes: a magnetic top, which is located at the top of the screening chamber; a guide plate, which is located on the bottom surface of the screening chamber with its end pointing towards the magnetic top; and an air jetting station, which is located on the bottom surface of the screening chamber near the drying chamber, with its nozzles spraying air along the bottom surface of the screening chamber to the upper surface of the guide plate.

[0008] Preferably, the drying chamber is provided with a support arm at one end near the screening chamber, the screening chamber is rotatably connected to the support arm, and a collection chamber is provided on the lower side of the support arm. The screening chamber has a first position tilted to the guide press machine and a second position tilted to the guide collection chamber within the rotation range. The magnetic top can be electrically controlled to start and stop, and it only stops when the screening chamber is in the second position, and remains active in other states.

[0009] Preferably, the bottom surface of the screening chamber is provided with a material discharge port located below the guide plate.

[0010] Preferably, a bridge is elastically rotatably provided on the bottom surface of the screening chamber near the drying chamber. A reset component is provided on the side wall of the screening chamber. During the switching process of the screening chamber from the first position to the second position, the reset component controls the bridge to rotate in the direction of entering the drying chamber. A limit component is provided on the side wall of the bridge. When the screening chamber is in the second position, the bridge is completely retracted into the drying chamber and limited by the limit component. When the screening chamber switches to the first position, the limit is removed, and the bridge automatically rotates out of the screening chamber to overlap the discharge end of the drying chamber.

[0011] Preferably, the magnetic top can be raised and lowered relative to the bottom surface of the screening chamber, and the side wall of the screening chamber is provided with a linkage component that links its own rotation with the movement of the magnetic top.

[0012] Preferably, the linkage component includes a planetary gear rotatably disposed on the side wall of the screening chamber. The planetary gear is connected to a sun gear and a folding component via a transmission. The sun gear is coaxial with the rotation axis of the screening chamber and is fixedly disposed on the support arm. The folding component passes upward around the side wall of the screening chamber and is fixedly connected to the magnetic top.

[0013] Preferably, the folding components are arranged symmetrically on opposite sides of the screening chamber as a group of three. One group of folding components used to link the planetary gear is located in the middle, while the other two groups of folding components are located at both ends of the magnetic top.

[0014] Preferably, the reset assembly includes a lever fixedly mounted at the end of the bridging shaft, the lever being within the lifting range of the folding component closest to the drying chamber.

[0015] Preferably, the limiting component includes a circle on the bridging sidewall, a locking post elastically disposed within the circle, and a strip-shaped locking groove matching the locking block on the folding part closest to the drying chamber. The lower end of the strip-shaped locking groove is chamfered, and the inner side of the folding part near the drying chamber is also chamfered.

[0016] Preferably, the end face of the screening chamber near the drying chamber is provided with a groove that matches the circle.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] This aluminum scrap recycling device is equipped with a magnetic top, guide plate, and air jet. After receiving the scrap discharged from the drying chamber in the screening chamber, the scrap falls to the highest point of the bottom surface of the screening chamber and slides down. At this time, the airflow from the air jet propels the scrap quickly down the bottom surface of the screening chamber to the upper surface of the guide plate, and then flies to the magnetic top along the end of the guide plate. As a result, some of the scrap to be screened is automatically attracted to the magnetic top, while the aluminum scrap falls down automatically and continues to slide down into the pressing machine. The scrap accumulated on the magnetic top does not affect the fall of the aluminum scrap, thus avoiding aluminum scrap retention.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a frontal cross-sectional view of the screening chamber of the present invention in its first position.

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a frontal cross-sectional view of the screening chamber of the present invention in the second position;

[0026] Figure 5 For the present inventionFigure 4 Enlarged structural diagram at point B;

[0027] Figure 6 This is a side cross-sectional view of the present invention.

[0028] Figure 7 This is a schematic diagram of the screening chamber of the present invention in the first position;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C;

[0030] Figure 9 This is a schematic diagram of the screening chamber of the present invention in the second position;

[0031] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D;

[0032] Figure 11 This is a schematic diagram of the magnetic ceiling structure of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Drying chamber; 2. Screening chamber; 3. Pressing machine; 4. Magnetic top; 5. Guide plate; 6. Air jet station; 7. Support arm; 8. Collection chamber; 9. Discharge port; 10. Bridging; 11. Planetary gear; 12. Sun gear; 13. Folding component; 14. Lever; 15. Circle; 16. Locking post; 17. Strip-shaped locking groove; 18. Groove; 19. Movable groove. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0036] Please see Figures 1-11This invention provides an aluminum waste recycling device, comprising a drying chamber 1, a screening chamber 2, and a pressing machine 3. The screening chamber 2 is transitionally disposed between the drying chamber 1 and the pressing machine 3, and is used to receive the waste discharged from the drying chamber 1, then screen out the aluminum waste and send it to the pressing machine 3, where the pressing machine 3 compresses the aluminum waste into aluminum cakes. The device also includes: a magnetic top 4, which is disposed on the top of the screening chamber 2; a guide plate 5, which is disposed on the inner bottom surface of the screening chamber 2, with its end pointing towards the magnetic top 4; and an air jetting station 6, which is disposed on the inner bottom surface of the screening chamber 2 near one end of the drying chamber 1, with its nozzle spraying air along the inner bottom surface of the screening chamber 2 to the upper surface of the guide plate 5.

[0037] Specifically, the drying chamber 1 is equipped with support legs at the bottom and a rolling belt inside to transport waste chips. The top surface of the drying chamber 1 is equipped with a heating lamp or heating wire, and the top surface of the drying chamber 1 is equipped with vents to dissipate moisture. The screening chamber 2 is rectangular and tubular, with its end near the drying chamber 1 being lower than the height of the rolling belt, while its end away from the drying chamber 1 is higher than the height of the cake press 3. The cake press 3 has an open bucket at the top to stably receive the aluminum chips sent from the screening chamber 2. The cake press 3 includes a high-pressure chamber and a hydraulic system. After the cake press 3 collects a certain amount of aluminum chips, the hydraulic system pushes the aluminum chips into the high-pressure chamber and squeezes them, so that the aluminum chips are tightly formed into a filter cake under high pressure. Then, the high-pressure chamber opens at one end to discharge the filter cake. The magnetic top 4 is the top plate of the screening chamber 2. The magnetic field strength generated by the magnetic top 4 is sufficient to adsorb all adsorbable metals in the waste. The guide plate 5 is set with a certain curvature, with the concave surface facing upwards, and the upper surface of the guide plate 5 smoothly transitions with the inner bottom surface of the screening chamber 2. The guide plate 5 is set at one end of the screening chamber 2, close to the drying chamber 1. The jet station 6 is connected to an external air supply system and continuously sprays straight and gentle air. The airflow from the jet station 6 first approaches and flows along the inner bottom surface of the screening chamber 2 towards the guide plate 5, and then flows along the upper surface of the guide plate 5, thereby guiding it to the magnetic top 4. In practical use, after the screening chamber 2 receives the waste material discharged from the drying chamber 1, the waste material falls to the highest point of the bottom surface of the screening chamber 2 and slides down. At this time, the airflow from the jet station 6 drives the waste material to slide quickly along the bottom surface of the screening chamber 2 to the upper surface of the guide plate 5, and then flies along the end of the guide plate 5 to the magnetic top 4. As a result, some of the waste material to be screened is automatically adsorbed onto the magnetic top 4, while the aluminum chips fall down automatically and continue to slide down into the pressing machine 3. The waste material adsorbed and accumulated on the magnetic top 4 will not affect the falling of the aluminum chips, thereby avoiding the retention of aluminum chips.

[0038] Compared with the prior art, the aluminum waste recycling device proposed in this embodiment of the invention, by setting up a magnetic top 4, a guide plate 5 and an air jet 6, after the waste waste discharged from the drying chamber 1 is received in the screening chamber 2, the waste waste falls to the highest point of the bottom surface of the screening chamber 2 and slides down. At this time, the airflow ejected from the air jet 6 carries the waste waste to slide quickly along the bottom surface of the screening chamber 2 to the upper surface of the guide plate 5, and then flies along the end of the guide plate 5 to the magnetic top 4. Thus, some of the waste waste to be screened is automatically adsorbed onto the magnetic top 4, while the aluminum waste automatically falls and continues to slide down into the pressing machine 3. The waste waste adsorbed and accumulated on the magnetic top 4 will not affect the falling of the aluminum waste, thereby avoiding the retention of aluminum waste.

[0039] As a preferred embodiment, a support arm 7 is provided at one end of the drying chamber 1 near the screening chamber 2. The screening chamber 2 is rotatably connected to the support arm 7. A collection chamber 8 is provided on the lower side of the support arm 7. The screening chamber 2 has a first position tilted to the guide press 3 and a second position tilted to the guide collection chamber 8 within its rotation range. The magnetic top 4 can be electrically controlled to start and stop, and it only remains stopped when the screening chamber 2 is in the second position, and remains active in other states. Specifically, the support arm 7 extends horizontally along the conveying direction of the drying chamber 1 on the outside of the drying chamber 1, and is rotatably connected to the middle position of the side wall of the screening chamber 2 at its end. A drive unit for controlling the rotation of the screening chamber 2 is installed on the support arm 7. The drive unit is controlled by a servo system. The system is controlled by a central control unit. The collection bin 8 is fixed to the support legs at the lower end of the drying bin 1. The collection bin 8 collects metal scraps that fall after the magnetic top 4 releases its adsorption. The screening bin 2 rotates to a first position where the end closer to the drying bin 1 is high and the end closer to the briquetting machine 3 is low. The second position is when the screening bin 2 rotates to a second position where the end closer to the drying bin 1 is low and the end closer to the briquetting machine 3 is low-high. The rotation range of the screening bin 2 is preferably -30° to 30° relative to the horizontal plane. The magnetic top 4 remains stopped only when the screening bin 2 is in the second position, thus canceling the adsorption function and allowing the collected metal scraps to fall freely. These scraps are then fed into the collection bin 8 along the tilt direction of the screening bin 2 in the second position. The bottom surface of the screening bin 2 is provided with a discharge port 9 located below the guide plate 5. Since the guide plate 5 obstructs the metal scraps falling freely above its height when the screening bin 2 is in the second position, the discharge port 9 ensures that the metal scraps are smoothly discharged from the screening bin 2 in the second position.

[0040] Due to the rotation space required for the screening chamber 2, a gap is provided between it and the drying chamber 1. When waste is conveyed by a rolling belt in the drying chamber 1, some waste is prone to leaking through the gap. The following embodiments are proposed to solve this problem.

[0041] In another embodiment proposed by the present invention, a bridging structure 10 is elastically rotatably arranged on the inner bottom surface of the screening bin 2 near one end of the drying bin 1. A reset component is arranged on the side wall of the screening bin 2. During the process of the screening bin 2 switching from the first position to the second position, the reset component controls the bridging structure 10 to rotate in the direction of entering the drying bin 1. A limiting component is arranged on the side wall of the bridging structure 10. When the screening bin 2 is in the second position, the bridging structure 10 is completely received into the drying bin 1 and is limited by the limiting component. When the screening bin 2 switches to the first position, the limit is cancelled, and the bridging structure 10 automatically rotates out of the screening bin 2 to搭接 on the discharge end of the drying bin 1. Specifically, the bridging structure 10 preferably has a "匚" shape. One end of the bridging structure 10 serving as the rotation center is connected to the inner side of the screening bin 2 and is arranged close to the air jet table 6. The rotating shaft of the bridging structure 10 is elastically connected to the screening bin 2 through structures such as a torsion spring. Under this elastic force, the bridging structure 10 has a tendency to make its free end rotate out of the screening bin 2. Thus, when the screening bin 2 is in the first position, the free end of the bridging structure 10 automatically搭接s to the discharge end of the drying bin 1. More specifically, the free end of the bridging structure 10搭接s to the conveying end of the rolling belt inside the drying bin 1, and the搭接 position is on the upper half of the arc of the conveying end of the rolling belt. Under the drive of the reset component, the bridging structure 10 moves into the screening bin 2. When the bridging structure 10 is limited by the limiting component, the extending direction of the free end of the bridging structure 10 is just flush with the end face of the screening bin 2 where it is located, that is, perpendicular to the bottom surface and the top surface of the screening bin 2. During the process of the screening bin 2 switching from the first position to the second position, the reset component controls the bridging structure 10 to slowly rotate in the direction of entering the drying bin 1 until the screening bin 2 reaches the second position, and the bridging structure 10 rotates to a completely received state flush with the end face of the screening bin 2, and the limiting component limits the rotation of the bridging structure 10. Then, during the process of the screening bin 2 switching from the second position to the first position again, the reset component does not play a role, and the limiting component keeps limiting the bridging structure 10. Thus, the bridging structure 10 keeps the received state and rotates with the screening bin 2, thereby avoiding interference with the drying bin 1. Finally, when the screening bin 2 reaches the first position, the limiting component cancels the limit on the bridging structure 10, and the bridging structure 10 automatically rotates out of the screening bin 2 under the elastic force and展开s,进而 automatically搭接s on the conveying end of the drying bin 1, forming a transition structure to fill the gap between the drying bin 1 and the screening bin 2, eliminating the problem of waste chip leakage. Moreover, the free end of the bridging structure 10 keeps抵靠 on the surface of the rolling belt inside the drying bin 1, thereby also avoiding the problem of some waste chips adhering to the rolling belt and being carried back.

[0042] It should be noted that the Chinese character "匚" is directly used here as there may not be an exact equivalent in English. If a more detailed or alternative expression is needed for this shape, it may need to be further adjusted according to the specific context. Also, the word "搭接" is used in a technical sense here and may need to be further defined or refined in a more professional translation context, and the translation of "抵靠" is also a literal translation for better conveying the meaning in this sentence.As a preferred technical solution in this embodiment, the magnetic top 4 can be raised and lowered relative to the bottom surface of the screening chamber 2. The side wall of the screening chamber 2 is provided with a linkage component that links its own rotation with the movement of the magnetic top 4. Specifically, due to the storage action of the bridge 10, when the screening chamber 2 is in the second position, its end near the collection chamber 8 is blocked by the bridge 10, and it cannot smoothly discharge the collected metal waste. The lifting and lowering of the magnetic top 4 is linked to the rotation of the screening chamber 2 via a linkage component. Specifically, when the screening chamber 2 rotates to the second position, the height of the magnetic top 4 decreases, thereby approaching the guide plate 5. This prevents the freely falling metal scraps from falling between the guide plate 5 and the bridge 10 when the magnetism of the magnetic top 4 is eliminated. Instead, the scraps are discharged from the discharge port 9, avoiding the problem of insufficient discharge due to the bridge 10 blocking the scraps. When the screening chamber 2 rotates to the first position, the height of the magnetic top 4 increases, thereby moving away from the guide plate 5 and maintaining a certain distance between them. This satisfies the function of the guide plate 5 in guiding the scraps to be screened to fly up, increasing the contact area between the flying scraps and the magnetic top 4, and improving the magnetic attraction effect.

[0043] As a preferred technical solution in this embodiment, the linkage component includes a planetary gear 11 rotatably mounted on the side wall of the screening chamber 2. The planetary gear 11 is connected to a sun gear 12 and a folding member 13 via a transmission. The sun gear 12 is coaxial with the rotation axis of the screening chamber 2 and is fixedly mounted on the support arm 7. The folding member 13 passes upward around the side wall of the screening chamber 2 and is fixedly connected to the magnetic top 4. Specifically, a first gear and a second gear of different sizes are coaxially mounted on the planetary gear 11. A third gear that meshes with the second gear is coaxially mounted on the sun gear 12. A rack that meshes with the first gear is mounted on the folding member 13. When the screening chamber 2 rotates, it drives the planetary gear 11 to rotate around the sun gear 12. Consequently, the second gear rotates around the third gear and engages with it. The second gear drives the first gear to rotate synchronously. The first gear drives the folding member 13 to rotate through the rack. The folding member 13 drives the magnetic top 4 to move, thereby realizing the linkage between the rotation of the screening chamber 2 and the lifting and lowering of the magnetic top 4. The above gear transmission method not only satisfies the linkage function but also amplifies the transmission effect and meets the needs of the magnetic top 4's range of motion.

[0044] As a further preferred technical solution of this embodiment, the folding parts 13 are arranged in groups of two symmetrically on opposite sides of the screening chamber 2, and three groups are provided. One group of folding parts 13 used to link the planetary gear 11 is located in the middle, while the other two groups of folding parts 13 are located at both ends of the magnetic top 4. Specifically, the arrangement of multiple groups of folding parts 13 ensures the stable movement of the magnetic top 4. The outer wall of the screening chamber 2 is provided with a movable groove 19 that matches the folding parts 13, thereby guiding the folding parts 13 to move in a specified direction.

[0045] As a further preferred technical solution of this embodiment, the reset component includes a lever 14 fixedly disposed at the end of the rotating shaft of the bridge 10. The lever 14 is located within the lifting range of the folding member 13 closest to the drying chamber 1. Specifically, the extension direction of the lever 14 is perpendicular to the extension direction of the free end of the bridge 10. The lever 14 is located in the movable groove 19 corresponding to the folding member 13 closest to the drying chamber 1. Under the elastic rotation function of the bridge 10, the lever 14 automatically maintains a state with its end raised and close to the folding member 13. Thus, during the descent of the folding member 13, it will press down and push the lever 14, thereby causing the bridge 10 to rotate towards the inside of the screening chamber 2 until the folding member 13 descends to its lowest point, which corresponds to the descent of the magnetic top 4. The bridge 10 rotates to a position closest to the guide plate 5, and simultaneously rotates to a storage position flush with the end face of the screening chamber 2. Furthermore, the length of the free end of the bridge 10 is set so that the magnetic top 4 is exactly abutting against the free end of the bridge 10, thereby closing the end face of the screening chamber 2 near the drying chamber 1. At this time, the height of the magnetic top 4 does not need to abut against the guide plate 5. With a gap between the magnetic top 4 and the guide plate 5, the jetting action of the jetting station 6 can blow the waste that accidentally falls between the guide plate 5 and the bridge 10 above the guide plate 5, and then leave the space between the guide plate 5 and the bridge 10. Then, it is also discharged from the discharge port 9, ensuring that the metal waste collected in the screening chamber 2 is completely discharged.

[0046] As a further preferred technical solution of this embodiment, the limiting component includes a circle 15 provided on the side wall of the bridge 10, a locking post 16 elastically movably provided in the circle 15, and a strip-shaped locking groove 17 matching the locking block provided on the folding part 13 closest to the drying chamber 1. The lower end of the strip-shaped locking groove 17 is provided with a chamfer. The inner side of the folding part 13 near the drying chamber 1 is also provided with a chamfer. Specifically, the axial direction of the circle 15 is parallel to the axial direction of the rotation axis of the bridge 10. The circle 15 is provided on the outer side wall of the free end of the bridge 10. The end face of the screening chamber 2 near the drying chamber 1 is provided with a groove 18 matching the circle 15. The locking post 16 is kept elastically extended out of the circle 15 under elastic force. The extended end of the locking post 16 is wedge-shaped and engaged with the above two chamfers. The chamfer range on the edge of the folding part 13 corresponds at least to the uppermost end of the strip-shaped locking groove 17. In practical use, during the rotation of the screening chamber 2 from the first position to the second position, the folding component 13 descends in conjunction with the lever 14, causing the bridge 10 to rotate inwards towards the screening chamber 2. The descent of the folding component 13 also aligns the strip-shaped slot 17 with the rotation trajectory of the circle 15. When the screening chamber 2 approaches the second position, the bridge 10 drives the circle 15 to embed into the groove 18, and the locking post 16 exerts a wedge-shaped pressing effect with the chamfer of the inner edge of the folding component 13, thereby causing the locking post 16 to retract. When the screening chamber 2 reaches the second position, the locking post 16 aligns with the strip-shaped slot 17, and the locking post 16... 6 automatically pops out to embed into the strip-shaped slot 17, thereby limiting the rotation of the bridge 10; then, as the screening chamber 2 rotates from the second position to the first position, the folding part 13 rises in conjunction to gradually move away from the lever 14, but the locking post 16 moves relative to the strip-shaped slot 17, thereby maintaining the limitation on the bridge 10 until the screening chamber 2 returns to the first position, the locking post 16 and the chamfer at the lower end of the strip-shaped slot 17 exert a wedge-shaped squeezing effect, causing the locking post 16 to retract. Immediately afterwards, the bridge 10 automatically unfolds outward from the screening chamber 2 through the elastic rotation function, thereby driving the locking post 16 away from the folding part 13.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aluminum scrap recycling device, comprising a drying chamber (1), a screening chamber (2), and a pressing machine (3), wherein the screening chamber (2) is disposed between the drying chamber (1) and the pressing machine (3) for receiving scrap discharged from the drying chamber (1), then screening out aluminum scrap and feeding it into the pressing machine (3), wherein the pressing machine (3) compresses the aluminum scrap into aluminum cakes, characterized in that, Also includes: A magnetic top (4) is set on top of the screening chamber (2); The guide plate (5) is set on the bottom surface of the screening chamber (2) with its end pointing to the magnetic top (4). The jetting station (6) is located on the bottom surface of the screening chamber (2) at one end near the drying chamber (1), and the nozzle sprays air along the bottom surface of the screening chamber (2) to the upper surface of the guide plate (5); The drying chamber (1) is provided with a support arm (7) at one end near the screening chamber (2). The screening chamber (2) is rotatably connected to the support arm (7). A collection chamber (8) is provided on the lower side of the support arm (7). The screening chamber (2) has a first position tilted to the guide press (3) and a second position tilted to the guide collection chamber (8) within the rotation range. The magnetic top (4) can be electrically controlled to start and stop, and it only stops when the screening chamber (2) is in the second position, and remains active in other states. The bottom surface of the screening chamber (2) near the drying chamber (1) is elastically rotatably provided with a bridge (10). The side wall of the screening chamber (2) is provided with a reset component. During the process of switching the screening chamber (2) from the first position to the second position, the reset component controls the bridge (10) to rotate in the direction of entering the drying chamber (1). The side wall of the bridge (10) is provided with a limit component. When the screening chamber (2) is in the second position, the bridge (10) is completely retracted into the drying chamber (1) and limited by the limit component. When the screening chamber (2) is switched to the first position, the limit is canceled and the bridge (10) automatically rotates out of the screening chamber (2) to overlap the discharge end of the drying chamber (1).

2. The aluminum waste recycling device according to claim 1, characterized in that, The bottom surface of the screening chamber (2) is provided with a material discharge port (9) located below the guide plate (5).

3. The aluminum waste recycling device according to claim 1, characterized in that, The magnetic top (4) can be raised and lowered relative to the bottom surface of the screening chamber (2). The side wall of the screening chamber (2) is provided with a linkage component that links its own rotation with the movement of the magnetic top (4).

4. The aluminum waste recycling device according to claim 3, characterized in that, The linkage component includes a planetary gear (11) rotatably mounted on the side wall of the screening chamber (2). The planetary gear (11) is connected to a sun gear (12) and a folding member (13). The sun gear (12) is coaxial with the rotating shaft of the screening chamber (2) and is fixedly mounted on the support arm (7). The folding member (13) passes upward around the side wall of the screening chamber (2) and is fixedly connected to the magnetic top (4).

5. The aluminum waste recycling device according to claim 4, characterized in that, The folding parts (13) are arranged in groups of two symmetrically on opposite sides of the screening chamber (2), and there are three groups. One group of folding parts (13) used to link the planetary gear (11) is set in the middle, while the other two groups of folding parts (13) are set at both ends of the magnetic top (4).

6. The aluminum waste recycling device according to claim 5, characterized in that, The reset assembly includes a lever (14) fixedly mounted at the end of the pivot shaft of the bridge (10), and the lever (14) is within the lifting range of the folding member (13) closest to the drying chamber (1).

7. The aluminum waste recycling device according to claim 5, characterized in that, The limiting component includes a circle (15) provided on the side wall of the bridge (10), a locking post (16) is elastically and movably provided in the circle (15), and a strip-shaped locking groove (17) matching the locking block is provided on the folding part (13) closest to the drying chamber (1). The lower end of the strip-shaped locking groove (17) is provided with a chamfer, and the inner side of the folding part (13) near the drying chamber (1) is also provided with a chamfer.

8. The aluminum waste recycling device according to claim 7, characterized in that, The end face of the screening chamber (2) near the drying chamber (1) is provided with a groove (18) that matches the circle (15).

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