A novel deoxidized aluminum rod extrusion and shearing production process

Abstract

This application belongs to the field of aluminum rod forming technology, specifically a novel deoxidized aluminum rod extrusion and shearing production process, including the following steps: S1, crushing; crushing irregular aluminum scrap into small pieces of 1-5mm size; S2, batching; weighing the crushed raw materials using a weighbridge, batching them using a mixer, and placing the batched raw materials in a movable hopper; S3, briquetting; adding the batched raw materials to a hydraulic briquetting machine for briquetting, pressing them into aluminum cakes with a diameter of 120mm and a thickness of 80mm; S4, preheating; sending the aluminum cakes into a heating furnace and heating for 2.5-3 hours, reaching 500℃; S5, extrusion; sending the heated aluminum cakes into an aluminum extrusion press and extruding them into shape; S6, rewinding; using a synchronous rewinding machine to rewind the extruded aluminum rods into coils and cooling them to room temperature. This production process has high efficiency and good production quality for the extrusion and shearing of novel deoxidized aluminum rods, meeting actual production and processing needs.

Description

Technical Field

[0001] This application belongs to the field of aluminum rod forming technology, specifically a novel deoxidized aluminum rod extrusion and shearing production process. Background Technology

[0002] Aluminum is a metallic element with the element symbol Al and atomic number 13. Its elemental form is a silvery-white, light metal with ductility. Commercially, it is often made into rods, sheets, foils, powders, strips, and wires. Deoxidized aluminum rods play a vital role in actual production and daily life.

[0003] Chinese invention patent 2023109001047 relates to the field of aluminum processing and recycling, specifically an automated aluminum chip pressing and recycling system, including an aluminum chip reversing device, a deburring device, and an aluminum chip receiving device; the aluminum chip reversing device includes a turntable that can rotate 90 degrees intermittently, with four support plates evenly distributed around the outer circumference of the turntable; this aluminum chip pressing device has low pressing efficiency and poor pressing effect.

[0004] Chinese invention patent 2019104090461 belongs to the field of waste recycling and processing technology, specifically involving an aluminum chip briquetting device, including a basic frame, a feeding mechanism, a briquetting and turning mechanism, and a transport mechanism. The briquetting and turning mechanism includes four push plates to compact the aluminum chips. This briquetting device cannot meet the needs of mass production.

[0005] In the existing technology for pressing aluminum scrap into aluminum cakes, the raw materials contain some cutting fluid and impurities. If these cutting fluid and impurities cannot be removed in advance, it will not only increase the difficulty of subsequent pressing, but also reduce the quality of the aluminum cake.

[0006] If the cutting fluid and impurities in the raw material are removed, the weight of the raw material will change accordingly. If it is directly pressed into aluminum cakes, the size of the aluminum cakes will not meet the requirements, thus reducing the quality of the aluminum cakes.

[0007] Meanwhile, when the raw materials are being fed by sliding, some of them will stick to the top of the elastic discharge plate, thus reducing the amount of material discharged. Furthermore, if the raw materials are directly piled up inside the inner cylinder for subsequent pressing, it will not only increase the pressing difficulty but also reduce the internal strength of the aluminum cake.

[0008] When the support plate is used to support and limit the bottom of the raw material, the support stability is poor and the support strength is low. Over a long period of use, it is easy to shift, which will reduce the strength and stability of the aluminum cake.

[0009] After the raw materials are pressed into aluminum cakes, burrs are easily generated on the outer surface of the aluminum cakes. In particular, a large number of burrs may be generated on the extrusion sides of the aluminum cakes and the extrusion plates and support plates, as well as at the drainage positions. If these burrs are not cleaned, it will not only reduce the quality of the aluminum cakes and increase the stability and processing accuracy of subsequent placement, but also easily cause scratches to the handling personnel, thus creating unnecessary safety hazards. Summary of the Invention

[0010] In response to the above problems, this application provides a novel deoxidized aluminum rod extrusion and shearing production process.

[0011] To achieve the above objectives, this application provides the following technical solution: a novel deoxidized aluminum rod extrusion and shearing production process, comprising the following steps:

[0012] S1. Crushing: Crushing irregular aluminum scrap into small pieces with a particle size of 1-5mm.

[0013] S2. Batching: Weigh the crushed raw materials using a weighbridge, batch them using a mixer, and place the batched raw materials in a movable hopper;

[0014] S3. Pressing: Add the prepared raw materials to the hydraulic chipping machine for pressing into aluminum cakes with a diameter of 120mm and a thickness of 80mm.

[0015] The hydraulic chipping machine includes a worktable, and a control system is provided on one side of the worktable;

[0016] The top of the workbench is provided with a fixed frame, and an inner cylinder is rotatably connected to the center of the fixed frame through a bearing. Multiple sets of drainage holes are evenly provided on the circumferential side of the inner cylinder. An outer cylinder is provided on the outer surface of the inner cylinder. A lower hydraulic rod is provided on the top of the workbench. A support plate is rotatably connected to the top output end of the lower hydraulic rod through a bearing. Multiple sets of snap-fit ​​grooves are evenly provided on the outer surface of the support plate.

[0017] The inner wall of the outer cylinder is uniformly provided with multiple sets of side grooves. The inner wall of the end of the side groove is provided with a retaining ring. The inside of the retaining ring is slidably connected with an insert rod. The side wall of the side groove is provided with an electromagnetic plate. The side wall of the electromagnetic plate is provided with a distance sensor. The end of the insert rod near the electromagnetic plate is provided with a magnetic connecting block. The side wall of the magnetic connecting block is provided with a gas collecting hose. The other end of the gas collecting hose is fixedly connected to the side wall of the retaining ring.

[0018] The bottom of the outer cylinder is fixedly connected to the top of the fixed frame. The outer surface of the inner cylinder and inside the fixed frame are provided with external teeth. The top of the fixed frame is provided with a drive motor. The bottom output end of the drive motor is provided with a transmission gear. The transmission gear meshes with the external teeth.

[0019] The inner wall of the inner cylinder is evenly provided with multiple sets of docking grooves, and a moving rod is slidably connected inside the docking groove. The other end of the multiple sets of gas collecting hoses is connected to the inside of the docking groove through a gas guiding component.

[0020] The side wall of the electromagnetic plate is provided with a connecting spring, the other end of which is fixedly connected to the side wall of the magnetic connecting block. The insertion rod is located inside the gas collecting hose. The outer surface of the magnetic connecting block is slidably connected to the inner wall of the side groove. The outer surface of the insertion rod matches the inner wall of the drain hole.

[0021] S4. Preheating: Place the aluminum cake into the heating furnace and heat for 2.5-3 hours, until it reaches 500℃;

[0022] S5. Extrusion: The heated aluminum cake is fed into an aluminum extrusion press and extruded into shape;

[0023] S6. Rewinding: The extruded aluminum rods are rewound into coils using a synchronous rewinding machine and cooled to room temperature;

[0024] S7. Cutting: Use an aluminum rod pelletizer to cut the coiled aluminum rods into aluminum pellets of a certain length;

[0025] S8. Packaging: Pack the cut aluminum granules into ton bags and stack them into piles.

[0026] Furthermore, dust will be generated in S1, S2, S3 and S4. The dust is collected by a bag filter, and after being collected by a dust collection hood and processed by a pipe, it is discharged through a 15m high exhaust stack to meet emission standards.

[0027] Furthermore, the control system electrically controls each electrical component, the distance sensor is used to detect the distance between the electromagnetic plate and the magnetic connecting block, multiple sets of support legs are evenly provided at the bottom of the workbench, an L-shaped bracket is provided on one side of the top of the workbench, an upper hydraulic rod is provided at the bottom of one side of the L-shaped bracket, an extrusion plate is provided at the bottom output end of the upper hydraulic rod, and the outer surfaces of the extrusion plate and the support plate are matched with the inner wall of the inner cylinder.

[0028] Furthermore, a support rod is provided on one side of the top of the workbench, and a loading box is provided on the top of the support rod. A first weight sensor is provided at the bottom of the loading box to detect the weight value at the bottom of the loading box. A discharge port is provided on one side of the loading box, and a solenoid valve is provided inside the discharge port. An elastic discharge plate is provided at the bottom of the discharge port. Multiple sets of protrusions are evenly provided on the top of the inner cylinder, and the top of the protrusions matches the bottom of the elastic discharge plate.

[0029] Furthermore, the inner wall of the docking groove is provided with a return spring, the other end of which is fixedly connected to the side wall of the moving rod. The moving rod matches the snap-fit ​​groove. A recycling cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder. A second weight sensor is provided at the bottom of the recycling cavity. The second weight sensor is used to detect the weight value at the bottom of the recycling cavity.

[0030] Furthermore, the air guiding assembly includes an annular tube, which is opened inside the retaining ring. The retaining ring has multiple sets of air inlets evenly arranged on the side wall near the magnetic connecting block. One end of the air inlet is connected to the inner cavity of the air collecting hose, and the other end of the air inlet is connected to the annular tube. The top and bottom of the annular tube are both connected to air outlets.

[0031] Furthermore, the outer cylinder has multiple sets of connecting holes evenly arranged inside, and the two ends of the connecting holes are respectively connected to the adjacent air outlet holes. The outer surface of the inner cylinder is provided with a limiting ring through a bearing. The bottom of the limiting ring is fixedly connected to the top of the fixed frame. The limiting ring has an inner hole inside, and the two ends of the inner hole are respectively connected to the docking groove and the bottom connecting hole.

[0032] Compared with the prior art, the beneficial effects of this application are as follows:

[0033] 1. This invention, through the coordinated operation of components such as an extrusion plate, a support plate, and an inner cylinder, makes the equipment simple to operate, stable, and efficient. It meets the need for rapid pressing of aluminum chips of different sizes into aluminum cakes. At the same time, it can also perform real-time and accurate detection of the output during the pressing process to ensure that the size of the aluminum cakes meets the requirements, thereby improving the pressing quality. Furthermore, the pressing efficiency is further improved by the all-round wrapping and pressing of the raw material by the extrusion plate, the support plate, and the inner cylinder.

[0034] 2. This invention, through the coordinated operation of components such as the inner cylinder and the elastic discharge plate, achieves high pressing efficiency and excellent pressing effect in pressing raw materials into aluminum cakes, meeting the needs of mass production. It is simple to operate, stable, and efficient. Furthermore, the material feeding rate can be precisely adjusted before pressing to ensure the subsequent aluminum cake's size meets requirements. During the feeding process, the rotation of the inner cylinder not only improves the flatness of the raw material inside but also vibrates and cleans the material on top of the elastic discharge plate, thereby improving equipment cleanliness and material accuracy. Before pressing the raw material, the rotation of the inner cylinder and support plate drives the material to centrifugally rotate, thus discharging cutting fluid and impurities, improving the material's precision and cleanliness.

[0035] 3. By setting up a support plate, a moving rod, and an insert rod, this invention can further improve the pressing effect when pressing raw materials into aluminum cakes, ensuring that the aluminum cakes meet the requirements. After pressing is completed, the insert rod moves in the opposite direction to not only pre-demold the aluminum cake, thereby improving the demolding efficiency and quality of the aluminum cake from the inner wall of the inner cylinder, but also simultaneously drive the moving rod to move in the opposite direction and disengage from the insertion slot. Finally, the inner cylinder itself rotates and performs all-round friction to remove burrs from the outer surface of the aluminum cake, improving the smoothness and cleanliness of the aluminum cake. After the raw material is pressed into aluminum cakes, it can be directly slid out along the inner cylinder. This process is energy-saving, emission-reducing, and environmentally friendly. Attached Figure Description

[0036] Figure 1 This is a process flow diagram of the present invention;

[0037] Figure 2 This is a first-view three-dimensional structural diagram of the present invention;

[0038] Figure 3 This is a second-view three-dimensional structural diagram of the present invention;

[0039] Figure 4 This is a schematic diagram of the third-view three-dimensional structure of the present invention;

[0040] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0041] Figure 6 This is a schematic diagram of the inner cylinder of the present invention;

[0042] Figure 7 This is a front sectional view of the inner and outer cylinders of the present invention;

[0043] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0044] Figure 9 This is a schematic diagram of the retaining ring of the present invention;

[0045] Figure 10 for Figure 7 Enlarged diagram of point C in the middle.

[0046] In the diagram: 1. Workbench; 2. Control system; 3. Support leg; 4. L-shaped bracket; 5. Upper hydraulic rod; 6. Extrusion plate; 7. Lower hydraulic rod; 8. Support plate; 9. Support rod; 10. Loading box; 11. Discharge port; 12. Elastic discharge plate; 13. Fixing frame; 14. Inner cylinder; 15. Protrusion; 16. Drain hole; 17. External gear; 18. Drive motor; 19. Transmission gear; 20. Outer cylinder; 21. Side groove; 22. Electromagnetic plate; 23. Connecting spring; 24. Magnetic connecting block; 25. Insert rod; 26. Air collection hose; 27. Retaining ring; 28. Ring pipe; 29. ​​Air inlet; 30. Air outlet; 31. Connecting hole; 32. Limiting ring; 33. Snap-fit ​​groove; 34. Inner hole of ring; 35. Docking groove; 36. Moving rod; 37. Return spring; 38. Recovery chamber. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example 1

[0048] like Figure 1 As shown, a novel deoxidized aluminum rod extrusion and shearing production process includes the following steps:

[0049] S1. Crushing: Crush irregular aluminum scraps into small pieces with a particle size of 1-5mm.

[0050] S2. Batching: Weigh the crushed raw materials using a weighbridge, batch them using a mixer, and place the batched raw materials in a movable hopper.

[0051] S3. Pressing: Add the prepared raw materials to the hydraulic briquetting machine for pressing into aluminum cakes with a diameter of 120mm and a thickness of 80mm.

[0052] S4. Preheating: Send the aluminum cake into the heating furnace and heat for 2.5-3 hours, until it reaches 500℃.

[0053] S5. Extrusion: The heated aluminum cake is fed into an aluminum extrusion press and extruded into shape.

[0054] S6. Rewinding: The extruded aluminum rods are rewound into coils using a synchronous rewinding machine and cooled to room temperature.

[0055] S7. Cutting: Use an aluminum rod pelletizer to cut the aluminum rods in a disc into aluminum pellets of a certain length.

[0056] S8. Packaging: Pack the cut aluminum granules into ton bags and stack them into piles.

[0057] Dust is generated in steps S1, S2, S3, and S4. The dust is collected by a bag filter and then enters the bag filter through a duct for further processing before being discharged through a 15m high exhaust stack. This improves the cleanliness of the above steps and prevents impurities in the raw materials from contaminating the aluminum cake in the subsequent process. Example 2

[0058] like Figure 2-4 As shown, a novel deoxidized aluminum rod extrusion and shearing production process is described. The hydraulic chip patter machine includes a workbench 1. The production equipment performs a pattering process on the prepared raw materials above the workbench 1. A control system 2 is provided on one side of the workbench 1. The control system 2 electrically controls various electrical components. A fixed frame 13 is provided on the top of the workbench 1. An inner cylinder 14 is rotatably connected to the center of the fixed frame 13 through a bearing. The raw materials are pressed into patters inside the inner cylinder 14.

[0059] The bottom of the workbench 1 is evenly provided with multiple sets of support legs 3. The support legs 3 further improve the stability and support performance of the workbench 1. The top side of the workbench 1 is provided with an L-shaped bracket 4. The L-shaped bracket 4 is an inverted L-shaped structure. This structure improves the adaptability of the equipment. The bottom side of the L-shaped bracket 4 is provided with an upper hydraulic rod 5. The bottom output end of the upper hydraulic rod 5 is provided with a pressing plate 6. The control system 2 controls the upper hydraulic rod 5 to start and drive the pressing plate 6 at the bottom output end to move up and down.

[0060] The top of the workbench 1 is equipped with a lower hydraulic rod 7. The top output end of the lower hydraulic rod 7 is rotatably connected to a support plate 8 via a bearing. The support plate 8 can rotate at the top output end of the lower hydraulic rod 7. The control system 2 controls the lower hydraulic rod 7 to start and drive the support plate 8 at the top output end to move up and down. The outer surfaces of the extrusion plate 6 and the support plate 8 are matched with the inner wall of the inner cylinder 14. When the extrusion plate 6 and the support plate 8 are located inside the inner cylinder 14 and extrude the raw material, the required aluminum cake can be pressed.

[0061] A support rod 9 is provided on one side of the top of the workbench 1. A loading box 10 is provided on the top of the support rod 9. The support rod 9 supports the loading box 10. The loading box 10 contains prepared raw materials. A first weight sensor is provided at the bottom of the loading box 10. The first weight sensor is used to detect the weight value at the bottom of the loading box 10. Therefore, the amount of raw materials discharged along the loading box 10 can be obtained quickly and efficiently by the first weight value detected by the first weight sensor. A discharge port 11 is provided on one side of the loading box 10. A solenoid valve is provided inside the discharge port 11. The solenoid valve is set to realize the opening and closing adjustment of the discharge port 11, so as to facilitate the precise adjustment of the raw material discharge amount. A flexible discharge plate 12 is provided at the bottom of the discharge port 11. The other end of the flexible discharge plate 12 matches the inside of the inner cylinder 14. The raw materials inside the loading box 10 enter the interior of the flexible discharge plate 12 along the discharge port 11 and finally fall into the interior of the inner cylinder 14 along the flexible discharge plate 12, so as to facilitate the subsequent pressing of the raw materials into aluminum cakes by the extrusion plate 6 and the support plate 8.

[0062] When in use, first complete the installation of the equipment, then pour the prepared raw materials into the loading box 10. When it is necessary to make aluminum cakes, first control system 2 controls the hydraulic rod 7 to start and drive the support plate 8 to move upward. The support plate 8 moves upward and continuously moves to a suitable height inside the inner cylinder 14, thereby blocking and supporting the bottom of the inner cylinder 14, which facilitates the subsequent pressing of the raw materials into aluminum cakes.

[0063] Then, the control system 2 controls the solenoid valve inside the discharge port 11 to open, and the raw material inside the loading box 10 falls along the discharge port 11 into the top of the elastic discharge plate 12, and then falls along the elastic discharge plate 12 into the inner cylinder 14 for subsequent pressing processes. During the discharge of the raw material inside the loading box 10, the first weight value detected by the first weight sensor continuously decreases, and the first weight difference detected by the first weight sensor continuously increases. This first weight difference is the weight value of the raw material inside the loading box 10 entering the inner cylinder 14. When the first weight difference detected by the first weight sensor... When the preset first weight difference is reached, it indicates that the weight of the raw material inside the inner cylinder 14 meets the requirements. The control system 2 controls the upper hydraulic rod 5 to start and drive the bottom extrusion plate 6 to move downward. After the extrusion plate 6 moves downward and into the inner cylinder 14, it works with the support plate 8 to extrude and shape the raw material inside the inner cylinder 14. When the control system 2 controls the upper hydraulic rod 5 to drive the extrusion plate 6 to move downward to a suitable height, the extrusion plate 6 presses the raw material into the required aluminum cake. This process has high pressing efficiency, good pressing effect, meets actual pressing needs, is stable and efficient, and is easy to operate.

[0064] Once the pressing is complete, the control system 2 controls the upper hydraulic rod 5 to start in reverse and drive the extrusion plate 6 to move upward to the initial height. At the same time, the lower hydraulic rod 7 starts and drives the support plate 8 to move downward. When the support plate 8 moves downward, it simultaneously drives the aluminum cake at the top to move downward. When the support plate 8 moves downward to the initial height, the aluminum cake is directly unloaded and recycled by the unloading assembly, thus completing the process of pressing the raw material into an aluminum cake.

[0065] This equipment is simple to operate, stable and efficient, and meets the need for rapid pressing of aluminum chips of different sizes into aluminum cakes. At the same time, it can also perform real-time and accurate detection of the output during the pressing process to ensure that the size of the aluminum cake meets the requirements, thereby improving the pressing quality. Furthermore, the pressing process is further improved by the extrusion plate 6, support plate 8 and inner cylinder 14 wrapping and pressing the raw material in all directions. Example 3

[0066] like Figure 5-10 As shown, when pressing raw materials into aluminum cakes using the aforementioned production equipment, the presence of cutting fluid and impurities in the raw materials increases the pressing difficulty and ultimately reduces the quality of the pressed aluminum cakes if these cannot be pre-extracted. Furthermore, even after some cutting fluid and impurities are expelled, the amount of raw material inside the inner cylinder 14 does not reach the required weight, resulting in the pressed aluminum cakes not meeting size requirements. When using the elastic discharge plate 12 for feeding, the adhesion of the raw material itself and the cutting fluid causes some material to adhere to the outer surface of the elastic discharge plate 12, reducing the accuracy of the material feeding and simultaneously... It will also hinder the subsequent feeding of raw materials; at the same time, when the support plate 8 supports and presses the raw materials inside the inner cylinder 14, the extrusion plate 6 will cause the support plate 8 to be misaligned when pressing the raw materials into aluminum cakes, thereby reducing the supporting and limiting effect of the support plate 8; after the process of pressing the raw materials into aluminum cakes is completed, burrs are easily formed on the outer surface of the aluminum cake, especially on the contact periphery with the extrusion plate 6 and the support plate 8. If the cutting fluid in the raw materials is drained from the inner cylinder 14 in advance, burrs will also be formed at the drain position during the pressing process. These burrs will not only reduce the efficiency of subsequent feeding of raw materials, but also reduce the quality of the aluminum cakes.

[0067] To address the aforementioned issues, this novel deoxidized aluminum rod extrusion and shearing production equipment further includes: multiple sets of drainage holes 16 evenly distributed on the circumferential side of the inner cylinder 14, allowing cutting fluid and impurities in the raw material to be discharged along the drainage holes 16, thus preventing the cutting fluid from hindering the pressing of the raw material into aluminum cakes; an outer cylinder 20 is provided on the outer surface of the inner cylinder 14, with the bottom of the outer cylinder 20 fixedly connected to the top of the fixed frame 13, preventing the outer cylinder 20 from rotating on the top of the fixed frame 13, and the outer cylinder 20 mainly assists in draining the raw material inside the inner cylinder 14 and deburring it; simultaneously, a recovery chamber 38 is formed between the outer wall of the inner cylinder 14 and the inner wall of the outer cylinder 20, which is mainly used to store the discharged cutting fluid or small aluminum chips and impurities in the raw material, thereby improving the recovery quality; a second weight sensor is provided inside the recovery chamber 38, which is used to detect the weight value at the bottom of the recovery chamber 38, and the second gravity difference detected by the second weight sensor can quickly obtain the weight of the cutting fluid and impurities discharged from the raw material inside the inner cylinder 14.

[0068] The outer surface of the inner cylinder 14, located inside the fixed frame 13, is provided with external teeth 17. The top inner part of the fixed frame 13 is provided with a drive motor 18, and the bottom output end of the drive motor 18 is provided with a transmission gear 19. The transmission gear 19 meshes with the external teeth 17. Therefore, when the control system 2 controls the drive motor 18 to start, the drive motor 18 drives the transmission gear 19 to rotate. The transmission gear 19 drives the inner cylinder 14 to rotate through meshing with the external teeth 17. The rotation of the inner cylinder 14 can centrifuge the raw materials inside to discharge cutting fluid, and at the same time, it can grind and deburr the outer surface of the pressed aluminum cake, thereby improving the quality of the aluminum cake.

[0069] The top of the inner cylinder 14 is evenly provided with multiple sets of protrusions 15. The top of the protrusions 15 matches the bottom of the elastic discharge plate 12. Therefore, when the inner cylinder 14 rotates, it drives the multiple sets of protrusions 15 to rotate as well. The protrusions 15 continuously and elastically contact the elastic discharge plate 12, further improving the elastic vibration of the elastic discharge plate 12 at the bottom of the discharge port 11, thereby preventing some raw materials from adhering to the top of the elastic discharge plate 12 and correspondingly improving the accuracy of the raw material discharge.

[0070] The inner wall of the outer cylinder 20 is uniformly provided with multiple sets of side grooves 21. A retaining ring 27 is provided on the inner wall of the end of each side groove 21, sealing and blocking the port of the side groove 21. An insert rod 25 is slidably connected to the inside of the retaining ring 27, thus sealing and limiting the sliding of the insert rod 25, thereby improving the cleanliness of the outer surface of the insert rod 25. An electromagnetic plate 22 is provided on the side wall of the side groove 21, and a distance sensor is provided on the side wall of the electromagnetic plate 22. A magnetic connecting block 24 is provided at the end of the insert rod 25 near the electromagnetic plate 22. The distance sensor is used to detect the distance between the electromagnetic plate 22 and the magnetic connecting block 24, thereby obtaining the distance the insert rod 25 moves along the side groove 21. The electromagnetic plate 22 and the magnetic connecting block 24 face each other. Since the magnetism of the end faces is the same, when the control system 2 controls the increase of the current of the electromagnetic plate 22, the magnetic repulsion force of the electromagnetic plate 22 on the magnetic connecting block 24 drives the magnetic connecting block 24 to move outward along the side groove 21. The side wall of the electromagnetic plate 22 is provided with a connecting spring 23, and the other end of the connecting spring 23 is fixedly connected to the side wall of the magnetic connecting block 24. The setting of the connecting spring 23 further improves the elastic reset performance of the magnetic connecting block 24. When the control system 2 controls the decrease of the current of the electromagnetic plate 22, the elasticity of the connecting spring 23 drives the magnetic connecting block 24 to move in the opposite direction. The magnetic connecting block 24 correspondingly drives the insertion rod 25 to move inward along the side groove 21, thereby realizing the reverse reset performance of the insertion rod 25.

[0071] The magnetic connecting block 24 has a gas collecting hose 26 on its side wall. The other end of the gas collecting hose 26 is fixedly connected to the side wall of the retaining ring 27. When the magnetic connecting block 24 moves, it squeezes the gas collecting hose 26. After the gas collecting hose 26 is squeezed, the gas inside the hose flows. The insertion rod 25 is located inside the gas collecting hose 26. This design further improves the flow and stability of the gas inside the gas collecting hose 26. The outer surface of the magnetic connecting block 24 is sealed and slidably connected to the inner wall of the side groove 21, which improves the sliding stability of the insertion rod 25. The outer surface of the insertion rod 25 matches the inner wall of the drain hole 16. When the insertion rod 25 is fully inserted into the drain hole 16, it blocks the drain hole 16. The inner wall of the inner cylinder 14 is a complete and smooth plane, which improves the quality of the subsequent pressing of the raw material into aluminum cakes.

[0072] The inner wall of the inner cylinder 14 is uniformly provided with multiple sets of docking grooves 35. A moving rod 36 is slidably connected inside the docking groove 35. Multiple sets of snap-fit ​​grooves 33 are uniformly opened on the outer surface of the support plate 8. The moving rod 36 matches the snap-fit ​​groove 33. Therefore, when the moving rod 36 moves outward along the docking groove 35 and snaps into the snap-fit ​​groove 33, the inner cylinder 14 rotates synchronously with the support plate 8 by means of the bearing between the support plate 8 and the lower hydraulic rod 7. The moving rod 36 can also support and limit the support plate 8, ensuring the support stability of the raw material on the top of the support plate 8 when it is pressed into an aluminum cake. The inner wall of the docking groove 35 is provided with a return spring 37. The other end of the return spring 37 is fixedly connected to the side wall of the moving rod 36. The setting of the return spring 37 further improves the movement and return performance of the moving rod 36.

[0073] The other end of each of the multiple sets of gas collecting hoses 26 is connected to the inside of the docking groove 35 through the gas guiding assembly. When the gas collecting hose 26 is squeezed, the gas inside the gas collecting hose 26 enters the inside of the docking groove 35 along the gas guiding assembly. The air pressure inside the docking groove 35 increases and drives the moving rod 36 to move outward.

[0074] The air guiding component includes an annular tube 28, which is located inside a retaining ring 27. The shape and size of the annular tube 28 match those of the retaining ring 27, allowing gas to circulate inside the annular tube 28. The retaining ring 27 has multiple sets of air inlets 29 evenly distributed on its side wall near the magnetic connecting block 24. One end of each air inlet 29 is connected to the inner cavity of the gas collecting hose 26, and the other end is connected to the annular tube 28. When the gas collecting hose 26 is compressed, the gas inside the hose enters the annular tube 28 through the air inlet 29. The top and bottom of the annular tube 28 are connected to air outlets 30, allowing the gas inside the annular tube 28 to be discharged through the air outlets 30. The outer cylinder 20 has multiple sets of connecting holes 31 evenly distributed inside. The two ends of each connecting hole 31 are connected to adjacent air outlets 30, and the gas inside the air outlets 30 circulates inside the connecting holes 31.

[0075] The outer surface of the inner cylinder 14 is provided with a limiting ring 32 via a bearing. The bottom of the limiting ring 32 is fixedly connected to the top of the fixed frame 13, so the limiting ring 32 will not rotate, while the inner cylinder 14 can rotate within the cavity of the limiting ring 32. The limiting ring 32 has an inner hole 34 inside, and the two ends of the inner hole 34 are respectively connected to the docking groove 35 and the bottom connecting hole 31. The size and shape of the inner hole 34 match the limiting ring 32, and the inner hole 34 is mainly used for gas flow. The gas inside the bottom connecting hole 31 can enter the inner hole 34 and eventually enter the docking groove 35 along the inner hole 34, driving the moving rod 36 to move. In particular, the docking groove 35 will rotate with the rotation of the inner cylinder 14, but as long as the docking groove 35 is sealed and connected to the inner hole 34, the gas inside the inner hole 34 can enter the docking groove 35 no matter where the docking groove 35 rotates with the inner cylinder 14, thereby effectively realizing stable sealed gas transmission.

[0076] When in use, the equipment is installed according to the above process, and a large amount of raw material is loaded into the loading box 10. The first weight sensor detects a certain weight value. The raw material contains a certain amount of cutting fluid and impurities. At the same time, the hydraulic rod 7 is started under the control of the control system 2 and drives the support plate 8 to move upward. The support plate 8 moves upward into the inner cylinder 14 and reaches a suitable height. At this time, the snap-fit ​​groove 33 matches the docking groove 35, and the subsequent loading process can be carried out.

[0077] Control system 2 controls the solenoid valve inside the discharge port 11 to open. The raw material inside the loading box 10 enters the inner cylinder 14 along the discharge port 11 and the elastic discharge plate 12 for subsequent spin drying and pressing. The first weight value detected by the first weight sensor decreases. When the first weight difference detected by the first weight sensor reaches the first preset weight difference, it means that the amount of raw material poured into the inner cylinder 14 from the loading box 10 meets the requirements. However, it should be noted that since the raw material contains some cutting fluid and impurities, more raw material needs to be poured into the loading box 10 during the pouring process. The specific difference can be obtained by comparing it with the second weight difference detected by the second weight sensor.

[0078] During the unloading process, the control system 2 controls the drive motor 18 to start and rotate. The transmission gear 19 at the bottom output end of the drive motor 18 rotates, meshing with the external gear 17 and driving the inner cylinder 14 to rotate. The rotation of the inner cylinder 14 drives the multiple sets of protrusions 15 at the top to rotate synchronously. The protrusions 15 rotate and press against the elastic discharge plate 12, causing the elastic discharge plate 12 to vibrate at the top of the inner cylinder 14. This vibration not only effectively increases the unloading speed of the raw material at the top of the elastic discharge plate 12, but also adjusts the outlet position of the elastic discharge plate 12. The adjustment changes the position of the material falling from the top of the elastic discharge plate 12 into the inner cylinder 14. Combined with the rotation of the inner cylinder 14, this allows the raw material to be evenly spread on the top of the support plate 8 inside the inner cylinder 14, preventing material accumulation inside the inner cylinder 14 and thus reducing the quality of subsequent drying and briquetting. At the same time, the vibration of the elastic discharge plate 12 can also clean the top of the elastic discharge plate 12, effectively preventing some raw material from sticking to the top of the elastic discharge plate 12, thus reducing the accuracy of material feeding and preventing obstruction of subsequent material feeding along the elastic discharge plate 12.

[0079] After the raw materials are fed, they need to be pre-dried. The control system 2 controls the electromagnetic plate 22 to be energized to a certain current. The magnetism of the electromagnetic plate 22 increases to a certain value. Then, the magnetic repulsion force of the electromagnetic plate 22 on the magnetic connecting block 24 drives the magnetic connecting block 24 to stretch the connecting spring 23 to move away from the electromagnetic plate 22 to a certain distance. The distance value detected by the distance sensor reaches the preset distance value. At this time, the insertion rod 25 moves to the outer surface of the inner cylinder 14 and contacts the outer surface of the inner cylinder 14.

[0080] Simultaneously, as the magnetic connecting block 24 moves, it synchronously squeezes the gas collecting hose 26. When the gas collecting hose 26 is squeezed, the gas inside enters the annular pipe 28 along the air inlet 29. The gas inside the annular pipe 28 reaches the connecting hole 31 along the air outlet 30, and then reaches the inner hole 34 along the connecting hole 31. Finally, the gas inside the inner hole 34 reaches the docking groove 35. The air pressure inside the docking groove 35 increases and drives the moving rod 36 to move outward. The moving rod 36 moves out along the docking groove 35 and locks into the locking groove 33. At this time, with the limiting locking effect of the moving rod 36 and the locking groove 33, not only is the support stability of the support plate 8 improved, but the synchronicity of the subsequent rotation of the inner cylinder 14 and the support plate 8 is also improved.

[0081] Then, the control system 2 controls the inner cylinder 14 to continue rotating. When the inner cylinder 14 rotates, it drives the support plate 8 to rotate synchronously through the engagement of the moving rod 36 and the locking groove 33. The rotation of the support plate 8 drives the raw material inside the inner cylinder 14 to rotate synchronously. Under the action of this rotational force, the raw material will be subjected to centrifugal force. Under the action of centrifugal force, the cutting fluid and impurities in the raw material will continuously move towards the inner wall of the inner cylinder 14 and eventually be discharged along the drain hole 16 and fall to the bottom of the recovery chamber 38. The weight value at the bottom of the recovery chamber 38 continuously increases, and the second weight value detected by the second weight sensor continuously increases. During the rotation of the inner cylinder 14, the inner cylinder 14 drives the drain hole 16 to rotate synchronously, while due to the outer The position of the cylinder 20 driving the insertion rod 25 does not change. Therefore, the drain hole 16 rotates and shifts relative to the multiple sets of insertion rods 25. Under the blocking effect of the insertion rod 25 on the outer port of the drain hole 16, the opening area of ​​the drain hole 16 changes continuously. As a result, the efficiency of the raw material inside the inner cylinder 14 being discharged along the drain hole 16 under its own centrifugal force changes continuously. This results in a pulse discharge effect of cutting fluid and impurities. With the help of this pulse effect, the centrifugal discharge efficiency of cutting fluid and impurities inside the raw material is further improved, and the cutting fluid and impurities located at the center of the inner cylinder 14 can be efficiently centrifugally discharged, thereby improving the dryness and purity of the raw material inside the inner cylinder 14.

[0082] When the amount of cutting fluid and impurities inside the recovery chamber 38 no longer increases, it indicates that the cutting fluid and impurities in the raw material have been completely discharged. The second weight value detected by the second weight sensor no longer increases. At this point, the second weight difference detected by the second weight sensor is the amount of cutting fluid and impurities discharged from the inner cylinder 14. The difference between the first weight difference detected by the first weight sensor and the second weight difference detected by the second weight sensor is the weight value of the raw material inside the inner cylinder 14. If this weight value meets the requirements, it indicates that the amount of raw material inside the inner cylinder 14 meets the demand. The inner cylinder 14 can be used for subsequent briquetting processes. If the weight value is small, the control system 2 needs to continue to control the solenoid valve inside the discharge port 11 to open and feed the material from the inside of the loading box 10 into the inner cylinder 14 along the discharge port 11 and the elastic discharge plate 12 to replenish it. After multiple feeding tests, the material inside the inner cylinder 14 meets the requirements. After obtaining the ratio of cutting fluid and impurities in the material inside the loading box 10, the subsequent material feeding process into the inner cylinder 14 can be carried out quickly and efficiently, thereby improving the feeding and drying efficiency of the subsequent material.

[0083] After the raw material is fed, the control system 2 controls the electromagnetic plate 22 to continue to increase the current, which increases the magnetism. The magnetic repulsion force of the electromagnetic plate 22 on the magnetic connecting block 24 increases, so the magnetic connecting block 24 continues to stretch the connecting spring 23 and moves away from the electromagnetic plate 22. The magnetic connecting block 24 drives the insertion rod 25 to continue to move to the maximum distance. The distance value detected by the distance sensor reaches the maximum value, and the end of the insertion rod 25 matches the inner wall of the inner cylinder 14. The inner wall of the inner cylinder 14 is on a smooth plane. At the same time, when the magnetic connecting block 24 moves, it continues to squeeze the gas collecting hose 26. The gas inside the gas collecting hose 26 further enters the docking groove 35 along the gas guiding assembly. The gas pressure inside the docking groove 35 increases and continues to drive the moving rod 36 to stretch the reset spring 37 to move outward. The insertion depth of the moving rod 36 and the locking groove 33 is further increased, thereby effectively ensuring the support strength of the support plate 8 for the top raw material and preventing the support plate 8 from sliding during subsequent briquetting, thus reducing the quality of the briquetting.

[0084] After all processes are completed, the control system 2 controls the upper hydraulic rod 5 to start and drive the extrusion plate 6 at the bottom output end to move downward. The extrusion plate 6 moves downward and reaches the inner cylinder 14. The extrusion plate 6 and the support plate 8 work together to continuously press the raw material inside the inner cylinder 14 into an aluminum cake. After pressing is completed, the position of the extrusion plate 6 does not change. Then the extrusion plate 6 and the support plate 8 clamp and fix the aluminum cake. During the pressing process, there will be some burrs at the clamping position of the aluminum cake with the extrusion plate 6 or the support plate 8, and at the position of the aluminum cake at the drain hole 16. If these burrs are not removed in time, they will not only reduce the quality of the aluminum cake, but also affect the subsequent processing of the aluminum cake.

[0085] When control system 2 de-energizes electromagnetic plate 22, electromagnetic plate 22 loses its magnetism. Under the elastic force of connecting spring 23, it drives magnetic connecting block 24 to move in the opposite direction to its initial position. When magnetic connecting block 24 moves, it simultaneously drives insert rod 25 to move in the opposite direction into side groove 21. Insert rod 25 unblocks drain hole 16, thus reopening drain hole 16. Simultaneously, when magnetic connecting block 24 moves, it stretches gas collecting hose 26, increasing the internal volume and decreasing the pressure. Under negative pressure, the gas inside docking groove 35 is drawn along the gas guide assembly. The component is drawn into the gas collection hose 26 in the reverse direction, reducing the pressure inside the docking groove 35. Under the elastic force of the return spring 37, the moving rod 36 moves in the reverse direction into the docking groove 35. The moving rod 36 disengages from the snap-fit ​​groove 33, and the support plate 8 is no longer limited. When the insert rod 25 moves in the reverse direction along the drain hole 16, it can also perform partial pre-demolding on the outer surface of the aluminum cake, thereby improving the efficiency and quality of subsequent complete demolding of the aluminum cake and avoiding adhesion between the aluminum cake and the inner wall of the inner cylinder 14, which would result in poor rotation effect of the inner cylinder 14 and low demolding efficiency.

[0086] At this time, the control system 2 starts the drive motor 18, which drives the transmission gear 19 to rotate. The transmission gear 19 rotates the inner cylinder 14 through meshing with the external gear 17. When the inner cylinder 14 rotates, it is disengaged from the support plate 8, so the support plate 8 does not rotate. The corresponding aluminum cake does not rotate inside the inner cylinder 14. Therefore, the rotation of the inner cylinder 14 is used to rotate and rub the burrs on the outer surface of the aluminum cake, thereby improving the effect of rotating and scraping off the burrs at the connection between the aluminum cake and the extrusion plate 6 or the support plate 8. In particular, the drainage hole 16 can further remove larger burrs. The cutting process improves the cleanliness and smoothness of the outer surface of the aluminum cake. Furthermore, the contact and collision between the inner cylinder 14 and the aluminum cake during rotation further enhances the demolding efficiency of the aluminum cake and the inner cylinder 14, avoiding poor demolding efficiency and quality due to excessive adhesion between the aluminum cake and the inner wall of the inner cylinder 14. Moreover, during the rotation of the inner cylinder 14, the upper hydraulic rod 5 or the lower hydraulic rod 7 can be appropriately controlled to reverse, thereby reducing the clamping force of the extrusion plate 6 and the support plate 8 on the aluminum cake. This, combined with the rotation of the inner cylinder 14, further improves the demolding efficiency of the aluminum cake with the extrusion plate 6 and the support plate 8, thus ensuring the overall demolding quality of the aluminum cake.

[0087] After deburring is completed, the control system 2 controls the upper hydraulic rod 5 to start in reverse and drive the extrusion plate 6 to move upward to the initial height. The lower hydraulic rod 7 moves in reverse and drives the support plate 8 to move downward to the initial height. When the support plate 8 moves, it moves downward synchronously with the aluminum cake by the weight of the aluminum cake itself. After the aluminum cake is completely removed from the inner cylinder 14, the aluminum cake can be directly clamped by the feeding component and the feeding can be completed. Then, the above process is repeated to continuously press the raw material into aluminum cakes, thereby completing the required processing steps.

[0088] This device boasts high pressing efficiency and excellent pressing effect for compressing raw materials into aluminum cakes, meeting the needs of mass production. It is simple to operate, stable, and efficient. Furthermore, the material feeding rate can be precisely adjusted before pressing to ensure the subsequent aluminum cake size meets requirements. During the feeding process, the rotation of the inner cylinder 14 not only improves the flatness of the raw material inside the cylinder 14 but also vibrates and cleans the material on top of the elastic discharge plate 12, thereby improving equipment cleanliness and material accuracy. Before pressing the raw material, the rotation of the inner cylinder 14 and support plate 8 drives the raw material to centrifugally rotate, thus completely discharging cutting fluid and impurities, improving the material's quality. The precision and cleanliness of the material are improved; when pressing the raw material into aluminum cakes, the pressing effect can be further improved to ensure that the aluminum cakes meet the requirements; after pressing, the reverse movement of the insert rod 25 can not only pre-demold the aluminum cake, thereby improving the demolding efficiency and quality of the aluminum cakes and the inner wall of the inner cylinder 14, but also simultaneously drive the moving rod 36 to move in the opposite direction and disengage from the insertion of the locking groove 33, and finally realize the rotation of the inner cylinder 14 itself and perform all-round friction to remove burrs on the outer surface of the aluminum cake, improving the smoothness and cleanliness of the aluminum cake. After the raw material is pressed into aluminum cakes, it can be directly slid out along the inner cylinder 14. This process is energy-saving, emission-reducing, and environmentally friendly.

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0090] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel extrusion and shearing process for deoxidized aluminum rods, characterized in that, Includes the following steps: S1. Crushing: Crushing irregular aluminum scrap into small pieces with a particle size of 1-5mm. S2. Batching: Weigh the crushed raw materials using a weighbridge, batch them using a mixer, and place the batched raw materials in a movable hopper; S3. Pressing: Add the prepared raw materials to the hydraulic chipping machine for pressing into aluminum cakes with a diameter of 120mm and a thickness of 80mm. The hydraulic chipping machine includes a worktable, and a control system is provided on one side of the worktable; The top of the workbench is provided with a fixed frame, and an inner cylinder is rotatably connected to the center of the fixed frame through a bearing. Multiple sets of drainage holes are evenly provided on the circumferential side of the inner cylinder. An outer cylinder is provided on the outer surface of the inner cylinder. A lower hydraulic rod is provided on the top of the workbench. A support plate is rotatably connected to the top output end of the lower hydraulic rod through a bearing. Multiple sets of snap-fit ​​grooves are evenly provided on the outer surface of the support plate. The inner wall of the outer cylinder is uniformly provided with multiple sets of side grooves. The inner wall of the end of the side groove is provided with a retaining ring. The inside of the retaining ring is slidably connected with an insert rod. The side wall of the side groove is provided with an electromagnetic plate. The side wall of the electromagnetic plate is provided with a distance sensor. The end of the insert rod near the electromagnetic plate is provided with a magnetic connecting block. The side wall of the magnetic connecting block is provided with a gas collecting hose. The other end of the gas collecting hose is fixedly connected to the side wall of the retaining ring. The bottom of the outer cylinder is fixedly connected to the top of the fixed frame. The outer surface of the inner cylinder and inside the fixed frame are provided with external teeth. The top of the fixed frame is provided with a drive motor. The bottom output end of the drive motor is provided with a transmission gear. The transmission gear meshes with the external teeth. The inner wall of the inner cylinder is evenly provided with multiple sets of docking grooves, and a moving rod is slidably connected inside the docking groove. The other end of the multiple sets of gas collecting hoses is connected to the inside of the docking groove through a gas guiding component. The side wall of the electromagnetic plate is provided with a connecting spring, the other end of which is fixedly connected to the side wall of the magnetic connecting block. The insertion rod is located inside the gas collecting hose. The outer surface of the magnetic connecting block is slidably connected to the inner wall of the side groove. The outer surface of the insertion rod matches the inner wall of the drain hole. S4. Preheating: Place the aluminum cake into the heating furnace and heat for 2.5-3 hours, until it reaches 500℃; S5. Extrusion: The heated aluminum cake is fed into an aluminum extrusion press and extruded into shape; S6. Rewinding: The extruded aluminum rods are rewound into coils using a synchronous rewinding machine and cooled to room temperature; S7. Cutting: Use an aluminum rod pelletizer to cut the coiled aluminum rods into aluminum pellets of a certain length; S8. Packaging: Pack the cut aluminum granules into ton bags and stack them into piles.

2. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 1, characterized in that, Dust is generated in S1, S2, S3 and S4. The dust is collected by a bag filter. The dust is collected through a dust collection hood, enters the bag filter through a pipeline for treatment, and is then discharged through a 15m high exhaust stack to meet emission standards.

3. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 1, characterized in that, The control system electrically controls each electrical component. The distance sensor is used to detect the distance between the electromagnetic plate and the magnetic connecting block. The bottom of the workbench is evenly provided with multiple sets of support legs. The top side of the workbench is provided with an L-shaped bracket. The bottom side of the L-shaped bracket is provided with an upper hydraulic rod. The bottom output end of the upper hydraulic rod is provided with an extrusion plate. The outer surfaces of the extrusion plate and the support plate are matched with the inner wall of the inner cylinder.

4. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 1, characterized in that, The workbench has a support rod on one side of its top, and a loading box is located on the top of the support rod. A first weight sensor is located at the bottom of the loading box to detect the weight value at the bottom of the loading box. A discharge port is located on one side of the loading box, and a solenoid valve is located inside the discharge port. An elastic discharge plate is located at the bottom of the discharge port. Multiple sets of protrusions are evenly distributed on the top of the inner cylinder, and the tops of the protrusions match the bottoms of the elastic discharge plates.

5. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 1, characterized in that, The inner wall of the docking groove is provided with a return spring, and the other end of the return spring is fixedly connected to the side wall of the moving rod. The moving rod matches the snap-fit ​​groove. A recycling cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder. A second weight sensor is provided at the bottom of the recycling cavity. The second weight sensor is used to detect the weight value at the bottom of the recycling cavity.

6. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 1, characterized in that, The air guiding assembly includes an annular tube, which is opened inside a retaining ring. The retaining ring has multiple sets of air inlets evenly arranged on its side wall near the magnetic connecting block. One end of each air inlet is connected to the inner cavity of the air collecting hose, and the other end of each air inlet is connected to the annular tube. Both the top and bottom of the annular tube are connected to air outlets.

7. The novel deoxidized aluminum rod extrusion and shearing production process according to claim 6, characterized in that, The outer cylinder has multiple sets of connecting holes evenly distributed inside. The two ends of each connecting hole are connected to the adjacent air outlet. The outer surface of the inner cylinder is provided with a limiting ring through a bearing. The bottom of the limiting ring is fixedly connected to the top of the fixed frame. The limiting ring has an inner hole inside. The two ends of the inner hole are connected to the docking groove and the bottom connecting hole, respectively.

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