Self-adapting feed non-ferrous metal crushing apparatus

Abstract

The present application relates to non-ferrous metal recovery crushing equipment technical field, specifically for a kind of self-adapting non-ferrous metal crushing equipment of feeding, including crushing box, the top of the crushing box is open, bottom is equipped with discharge outlet for material discharge, the top of the crushing box is fixedly connected with baffle before and after, the two sides of two baffles are used for feeding;The top opening of the crushing box is provided with extrusion mechanism for extruding pretreatment to material, the inside of the crushing box is rotatably connected with two parallel crushing rollers below extrusion mechanism. By setting rotatable material plate and axially movable extrusion disc in feed inlet, hollow material entering can be pre-compressed, material volume is reduced, curved surface structure is destroyed, so that it is more easily bitten by crushing roller, avoid material with roller rotation. The rotary motion of material plate can actively stir the material in feed inlet, and the "bridge" jam caused by crushing is guaranteed to fall smoothly.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal recycling and crushing equipment, specifically to an adaptive feeding non-ferrous metal crushing equipment, which is particularly suitable for crushing and processing hollow cylindrical non-ferrous metal waste such as beverage cans and milk powder cans. Background Technology

[0002] Non-ferrous metal scrap needs to be crushed into block or granular materials using a crusher before it can be recycled. However, in practice, when crushing non-ferrous metals, especially materials such as aluminum cans, milk powder boxes, and flower boxes, a double-roll crusher is generally used. However, because these materials are cylindrical with curved outer surfaces, when they come into contact with the cylindrical crushing rollers during their fall, the materials tend to rotate along with the rollers, making it impossible to crush them quickly. Additional pressure or changes in the material's position and angle are required to achieve successful crushing. This process usually requires manual intervention. However, during the crushing process, the material is subjected to enormous crushing pressure from the crusher, and fragments are easily scattered, causing injury to workers.

[0003] Therefore, an adaptive feeding non-ferrous metal crushing device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive feeding non-ferrous metal crushing device to solve the technical problems in the prior art, such as columnar non-ferrous metal materials being easily crushed by rotating with the rollers, clogging of the feed inlet, fragment splashing, and the need for shutdown and secondary processing of unqualified materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive feeding non-ferrous metal crushing device, comprising a crushing box, wherein the top of the crushing box is open and the bottom is provided with a discharge port for material discharge; baffles are fixedly connected to the front and rear of the top of the crushing box, and the two sides of the baffles are used for feeding; an extrusion mechanism for extruding and pre-treating the material is provided at the top opening of the crushing box; two parallel crushing rollers are rotatably connected inside the crushing box below the extrusion mechanism; a buffer assembly for buffering the impact of falling material is provided below the crushing rollers; and a secondary screening crushing mechanism for screening the crushed material and further crushing unqualified material is provided below the buffer assembly.

[0006] Furthermore, the extrusion mechanism includes a drive shaft that is rotatably connected to the crushing box at both ends, and four material plates that are fixedly connected to the outside of the drive shaft at equal intervals in a ring; extrusion discs are sleeved on the front and rear sides of the material plates, and the extrusion discs are slidably connected to the material plates and the drive shaft; a second motor that is driven by the drive shaft is fixedly connected to the outside of the baffle, and hydraulic cylinders are symmetrically distributed on both sides of the second motor, and the output end of the hydraulic cylinder passes through the baffle and abuts against the outer wall of the extrusion disc.

[0007] Furthermore, the buffer assembly includes a buffer plate fixedly connected to the inner wall of the crushing chamber. The two sides of the buffer plate are designed with an inclined angle. A rotating roller is rotatably connected to the center of the lower end face of the buffer plate. Spring pieces are fixedly connected to the outer ring of the rotating roller at equal intervals. A protrusion is fixedly connected to the lower end face of the buffer plate at the position corresponding to the spring piece. A sprocket fixed to one end of the rotating roller is rotatably connected to the rear end face of the crushing chamber. Multiple baffles are fixedly connected to the upper end face of the buffer plate.

[0008] Furthermore, the secondary screening and crushing mechanism includes a storage roller rotatably connected inside the crushing chamber and located below the buffer plate, and screen plates symmetrically and inclinedly fixed on both sides of the storage roller. The screen plates are fixedly connected to the inner wall of the crushing chamber. A storage trough is formed on the surface of the storage roller, and a knife groove is formed inside the storage trough. A blade is movably connected inside the knife groove. One side of the blade is fixedly connected to a fixed plate. The front and rear ends of the fixed plate are fixed to the inner wall of the crushing chamber, and the side of the fixed plate away from the blade is fixedly connected to the screen plate. The storage trough has an isosceles trapezoidal structure. Another sprocket fixed to one end of the storage roller is rotatably connected to the rear end face of the crushing chamber. The two sprockets are connected by a chain drive.

[0009] Furthermore, a transmission box is fixedly installed on the front end face of the crushing box, and the transmission box contains two gears that are respectively fixed to one end of the two crushing rollers, and the two gears mesh with each other; a motor is fixedly connected to the rear end face of the crushing box, and the output end of the motor is fixedly connected to one end of one of the crushing rollers.

[0010] Furthermore, the output end of the hydraulic cylinder is equipped with an electromagnet, which is used to magnetically attract and squeeze the disc during reset to drive it to reset.

[0011] Furthermore, the right side of the crushing chamber is hinged with a viewing cabinet door with built-in tempered glass for observing the internal operating status and maintenance.

[0012] Furthermore, the bottom of the crushing box is fixedly connected with multiple support legs.

[0013] Furthermore, a motor is fixedly connected to the rear end face of the crushing box. The output end of the motor is connected to the storage roller via a sprocket and chain mechanism to drive the storage roller to rotate in both directions.

[0014] Furthermore, there are four material plates, which are evenly distributed circumferentially along the drive shaft, and material-accommodating spaces are formed between adjacent material plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a rotatable material plate and an axially movable extrusion disc at the feed inlet, the incoming hollow material can be pre-compressed, reducing its volume and breaking down its curved structure, making it easier for the crushing roller to bite into it and preventing the material from rotating with the roller. The rotational movement of the material plate can actively move the material at the feed inlet, breaking up the "bridging" blockage caused by mutual compression and ensuring that the material falls smoothly.

[0016] 2. When not feeding, the material plate can cover the feed inlet, effectively blocking the flying fragments during the crushing process and improving operational safety.

[0017] 3. The buffer assembly, through the inclined buffer plate, baffle strip and vibrating roller, can disperse the impact force of falling materials, avoid local overload damage to the screen, and achieve uniform material distribution.

[0018] 4. The secondary screening and crushing mechanism can automatically collect unqualified large pieces of material into the storage tank, and perform secondary shearing and crushing through the relative movement of the blades and the storage rollers, without the need for machine shutdown and manual intervention, which significantly improves production efficiency. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a rear view of the overall structure of the present invention; Figure 3 This is a bottom view of the overall structure of the present invention; Figure 4 This is a partial cross-sectional view of the overall structure of the present invention; Figure 5 This is a structural view of the extrusion mechanism of the present invention; Figure 6 This is a cross-sectional view of the overall structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view at point A in the middle; Figure 8 This is a structural view of the storage roller and fixing plate of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Crushing box; 11. Baffle; 12. Viewing cabinet door; 13. Support leg; 14. Motor 1; 15. Transmission box; 16. Motor 2; 17. Hydraulic cylinder; 18. Chain; 19. Sprocket; 2. Extrusion mechanism; 21. Material plate; 22. Drive shaft; 23. Extrusion disc; 3. Feed inlet; 4. Crushing roller; 41. Motor 3; 5. Buffer assembly; 51. Buffer plate; 52. Stop bar; 53. Rotating roller; 54. Spring piece; 55. Protrusion; 6. Secondary screening crushed parts; 61. Fixed plate; 62. Screen plate; 63. Storage roller; 64. Storage trough; 65. Knife groove; 66. Blade. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0023] Please see Figures 1 to 8 This embodiment provides an adaptive feeding non-ferrous metal crushing device, which is particularly suitable for crushing and processing hollow non-ferrous metal waste such as beverage cans and milk powder cans.

[0024] I. Overall Structure The crushing box 1 is a box structure with an open top and a discharge port 3 at the bottom. Baffles 11 are fixed to the front and rear sides of the top of the crushing box 1, while the left and right sides serve as feed inlets, which can be connected to a conveyor belt for continuous or intermittent feeding. A viewing door 12 with tempered glass is hinged to the right side of the crushing box 1, allowing for easy observation of the internal operation and facilitating maintenance when opened. Four support legs 13 are located at the bottom of the crushing box 1.

[0025] II. Extrusion Mechanism The extrusion mechanism 2 is located at the top opening of the crushing box 1. The drive shaft 22 is horizontally rotatably connected between the front and rear walls of the crushing box 1, and four material plates 21 evenly distributed circumferentially are fixed on its exterior, forming a receiving space between adjacent material plates. Extrusion discs 23 are respectively fitted on the front and rear sides of the material plates 21. The extrusion discs 23 can slide axially along the drive shaft 22 and maintain a clearance fit with the material plates 21.

[0026] A second motor 16 is fixed to the outside of the baffle 11, and its output shaft is connected to the transmission shaft 22 to drive the transmission shaft 22 and the material plate 21 to rotate. Hydraulic cylinders 17 are symmetrically installed on both sides of the second motor 16. The piston rod of the hydraulic cylinder 17 passes through the baffle 11 and abuts against the outer side of the extrusion plate 23. An electromagnet is built into the end of the piston rod of the hydraulic cylinder 17, which can magnetically attract the extrusion plate 23 and drive it to reset when needed.

[0027] Working process: Material enters the crushing chamber 1 from both sides and falls into the space between the material plates 21. Hydraulic cylinder 17 drives the two extrusion discs 23 to move towards each other, flattening and compacting the hollow material, thus breaking its curved structure. Subsequently, the extrusion discs 23 return to their original position, and motor 26 drives the transmission shaft 22 to rotate 90 degrees, discharging the compacted material downwards into the crushing roller 4 area. By controlling the speed and interval of motor 26, the feeding speed can be adaptively adjusted. During rotation, the material plates 21 also dislodge any material that may be blocked at the feed inlet and act as a shield against splashing fragments.

[0028] The extrusion mechanism designed in this application has the following effects: 1. The material plate 21 buffers the material entering the inlet and adaptively adjusts the speed according to the type of material or the conveying speed of the material conveying platform. This can be achieved by controlling the forward and reverse rotation speed of the motor 41, which can well meet the needs of different materials and users.

[0029] 2. The extrusion mechanism 2 can extrude material into the material plate 21 in a single pass, or, as needed, push the extruded material to one side of the extrusion plate 23 for continued feeding and extrusion, thus processing a larger quantity of material at once. This design is advantageous because it facilitates the crushing of materials, especially those with curved surfaces, by allowing the subsequent crushing roller 4 to perform the crushing process. It avoids situations where material cannot be crushed quickly enough due to the roller 4 rotating with it, requiring manual intervention. Secondly, materials like aluminum cans and milk powder cans are hollow and bulky, taking up significant space at the inlet and hindering efficient processing by the crushing roller 4. Extrusion allows for the processing of more material.

[0030] 3. Generally, during material feeding, the materials are easily squeezed together as they are conveyed to the feed inlet, and then come into contact with the inner wall of the feed inlet, resulting in material blockage. In other words, the materials are "suspended" at the feed inlet and cannot make normal contact with the crushing roller 4. The rotating material plate 21 can break up the squeezing and blockage between the materials, allowing the materials to fall normally without manual intervention.

[0031] 4. During the crushing process, materials are subject to crushing stress, which can easily cause material fragments or particles to splash, affecting the surrounding environment and workers. This application addresses this by designing a material plate 21 to temporarily shield the feed inlet, reducing material splashing and minimizing the impact on workers and the surrounding environment.

[0032] 5. After being compressed into blocks, the material comes into contact with the crushing roller 4 upon falling, and there may be some rolling of the material, which affects the crushing of the crushing roller 4. This application uses a motor 3 41 to drive the transmission shaft 22 to rotate, which in turn drives the material plate 21 to rotate. This allows the material plate 21 to move the material on the crushing roller 4, changing the position or angle of the material, so as to achieve rapid contact crushing of the material by the crushing roller 4.

[0033] III. Crushing Rollers and Transmission Two crushing rollers 4 are arranged in parallel, located directly below the extrusion mechanism 2, and their surfaces may be equipped with crushing teeth. A transmission box 15 is fixed to the front end of the crushing box 1, and inside there are two meshing gears fixed to the shaft ends of the two crushing rollers 4 respectively, so as to achieve synchronous reverse rotation. A motor 41 is fixed to the rear end of the crushing box 1, and its output end is fixedly connected to one of the crushing rollers 4 to provide power.

[0034] IV. Buffer Components The buffer assembly 5 includes a buffer plate 51, a rotating roller 53, and spring sheets 54. The buffer plate 51 is fixed to the inner wall of the crushing box 1, located below the crushing roller 4, and its sides are inclined downwards (higher in the center and lower on both sides). Multiple baffles 52 are fixed to the upper surface of the buffer plate 51 to slow down the downward speed of the material. The rotating roller 53 is rotatably connected to the center of the lower end face of the buffer plate 51, and spring sheets 54 are distributed in a ring on the outer wall of the rotating roller 53. Protrusions 55 are provided on the lower end face of the buffer plate 51 at positions corresponding to the spring sheets 54. A sprocket 19 fixed to the rotating roller 53 is provided on the rear end face of the crushing box 1.

[0035] When the crushed material falls onto the buffer plate 51, it disperses to both sides along the inclined surface, and the baffle strip 52 reduces the impact. When the rotating roller 53 rotates, the spring 54 and the protrusion 55 periodically collide, causing the buffer plate 51 to vibrate, promoting the falling of material and preventing adhesion. The rotation of the rotating roller 53 is driven by the power of the secondary screening and crushing mechanism via the chain 18.

[0036] After being crushed by the crushing roller 4, the material falls downwards. In existing technologies, the material is generally discharged in a concentrated manner, impacting the lower screening device. This presents two problems: first, the concentrated impact on the fixed position of the lower screening device easily damages its service life, for example, causing holes in the screen at the impact point; second, the concentrated discharge of crushed material easily clogs the screening device, preventing it from properly screening the material and affecting material processing efficiency. Therefore, by designing a buffer plate 51, the impact force of the falling material is buffered. The inclined angle of the buffer plate 51 allows the material to be discharged to both sides. The baffle strip 52 further buffers the material. With the rotation of the rotating roller 53, the buffer plate 51 vibrates under the repeated collision of the protrusion 55 and the spring piece 54, achieving material vibration discharge.

[0037] V. Secondary Screening and Crushing Mechanism The secondary screening and crushing mechanism 6 includes a storage roller 63, screen plates 62, a fixed plate 61, and blades 66. Two screen plates 62 are symmetrically and inclinedly fixed on both sides of the storage roller 63, with the higher end near the edge of the buffer plate 51 and the lower end near the side wall of the crushing chamber 1. The screen aperture size is set according to the particle size of the qualified material. Material sliding off the buffer plate 51 falls onto the screen plates 62. Qualified material passes through the screen plates and is discharged from the discharge port 3, while large, unqualified pieces of material roll down the screen plates 62 to the vicinity of the fixed plate 61.

[0038] The storage roller 63 is rotatably connected to the crushing box 1. Its surface has a storage trough 64 with an isosceles trapezoidal cross-section, and a cutting groove 65 is further formed within the storage trough 64. Blades 66 are fixed to the fixing plate 61 and extend into the cutting groove 65. The storage roller 63 is linked to the rotating roller 53 via a sprocket 19 and a chain 18, and is driven to rotate forward and backward by a motor 14. When the storage roller 63 rotates, defective material enters the storage trough 64. As the storage roller rotates, the blades 66 move relative to the cutting groove 65, shearing and crushing the material. After crushing, the material exits from the storage trough 64 and falls into the discharge port 3.

[0039] The material, buffered by the buffer assembly 5, continues to fall onto the screen plate 62, which is also designed at an inclined angle. The falling material rolls from its highest point to its lowest point on the screen plate 62 for screening. The suitable material falls and is discharged through the discharge port 3, while the unsuitable material continues to roll down onto the fixed plate 61 and then enters the storage trough 64 on the surface of the storage roller 63. At this time, the motor 14, fixed to one end of the storage roller 63, drives the storage roller 63 to rotate in both directions, causing the material inside the storage trough 64 to rotate and shift. Simultaneously, the blades 66 move relative to the blade grooves 65 within the storage trough 64 of the storage roller 63, further shearing the unsuitable material in the storage trough 64, which then smoothly falls through the rotating displacement of the storage roller 63 and is discharged through the discharge port 3. Why is it designed this way? There are generally strict requirements for non-ferrous metal recycling waste. Waste that does not meet the requirements during the screening process is usually removed by stopping the machine or automatically discharged by the equipment. The waste is then manually transported and crushed again, which is very labor-intensive and material-intensive and affects the material processing efficiency.

[0040] VI. Working Principle The complete workflow is as follows: 1. The material is fed from both sides of the crushing box 1 by the conveyor belt and falls between the material plates 21 of the extrusion mechanism 2.

[0041] 2. The hydraulic cylinder 17 drives the extrusion disc 23 to move in opposite directions, flattening and compacting the hollow material, and then resetting.

[0042] 3. Motor 216 drives transmission shaft 22 to rotate 90 degrees, and the compacted material falls into crushing roller 4 area.

[0043] 4. Motor 3 41 drives the crushing roller 4 to rotate, crushing the material into small pieces.

[0044] 5. After crushing, the material falls to the buffer plate 51, is slowed down by the baffle bar 52, and dispersed by the vibration of the rotating roller 53, and flows evenly to the screen plates 62 on both sides.

[0045] 6. Screening by sieve plate 62: qualified fine materials are discharged directly through the discharge port 3; unqualified large materials slide down the sieve plate 62 to the storage tank 64.

[0046] 7. Motor 14 drives the storage roller 63 to rotate, and the blade 66 cooperates with the groove 65 to shear and crush large pieces of material a second time. After crushing, the material falls and is discharged.

[0047] 8. The visual cabinet door 12 is used to monitor the operating status and can be opened for maintenance when necessary.

[0048] VII. Verification of Technical Effects This equipment crushes recycled aluminum cans at a capacity of 2.5 tons per hour, with no blockage at the feed inlet. Pre-compression increases material crushing efficiency by 40%, and the crushing rollers do not idle or jam. The buffer plate extends the screen plate life by more than three times. The secondary crushing unit can automatically handle approximately 15% of non-conforming materials without requiring manual intervention, resulting in an overall production efficiency increase of approximately 60%.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-ferrous metal crushing device with adaptive feeding, comprising a crushing box (1), characterized in that, The top of the crushing box (1) is open, and the bottom is provided with a discharge port (3) for material discharge. The top of the crushing box (1) is fixedly connected with baffles (11) at the front and back. The two sides of the baffles (11) are used for feeding. The top opening of the crushing box (1) is provided with a compression mechanism (2) for pre-processing the material by compression. The inside of the crushing box (1) is rotatably connected with two parallel crushing rollers (4) below the compression mechanism (2). The crushing rollers (4) are provided with a buffer assembly (5) for buffering the impact of falling material below the crushing rollers (4). The buffer assembly (5) is provided with a secondary screening crushing mechanism (6) for screening the crushed material and crushing the unqualified material again below the buffer assembly (5).

2. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The extrusion mechanism (2) includes a drive shaft (22) that is rotatably connected to the crushing box (1) at both ends, and four material plates (21) that are fixedly connected to the outside of the drive shaft (22) at equal intervals in a ring. Extrusion discs (23) are sleeved on the front and rear sides of the material plates (21), and the extrusion discs (23) are slidably connected to the material plates (21) and the drive shaft (22). The outer side of the baffle (11) is fixedly connected to a second motor (16) that is connected to the drive shaft (22), and hydraulic cylinders (17) that are symmetrically distributed on both sides of the second motor (16). The output end of the hydraulic cylinder (17) passes through the baffle (11) and abuts against the outer wall of the extrusion disc (23).

3. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The buffer assembly (5) includes a buffer plate (51) fixedly connected to the inner wall of the crushing box (1). The two sides of the buffer plate (51) are designed with an inclined angle. A rotating roller (53) is rotatably connected to the center of the lower end face of the buffer plate (51). Spring pieces (54) are fixedly connected to the outer ring of the rotating roller (53) at equal intervals. A protrusion (55) is fixedly connected to the lower end face of the buffer plate (51) at the corresponding position of the spring piece (54). A sprocket (19) fixed to one end of the rotating roller (53) is rotatably connected to the rear end face of the crushing box (1). Multiple baffles (52) are fixedly connected to the upper end face of the buffer plate (51).

4. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The secondary screening and crushing mechanism (6) includes a storage roller (63) rotatably connected inside the crushing box (1) and located below the buffer plate (51), and screen plates (62) symmetrically and inclinedly fixed on both sides of the storage roller (63). The screen plates (62) are fixedly connected to the inner wall of the crushing box (1). A storage trough (64) is opened on the surface of the storage roller (63), and a knife groove (65) is opened in the storage trough (64). A blade (66) is movably connected in the knife groove (65). One side of the blade (66) is fixedly connected to the fixing plate (61), and the front and rear ends of the fixing plate (61) are fixed to the inner wall of the crushing box (1). The side of the fixing plate (61) away from the blade (66) is fixedly connected to the screen plate (62). The storage trough (64) has an isosceles trapezoidal structure. The rear end face of the crushing box (1) is also rotatably connected to another sprocket (19) fixed to one end of the storage roller (63). The two sprockets (19) are connected by a chain (18).

5. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, A transmission box (15) is fixedly installed on the front end face of the crushing box (1). The transmission box (15) contains two gears that are fixed to one end of the two crushing rollers (4) respectively, and the two gears mesh with each other. A motor (41) is fixedly connected to the rear end face of the crushing box (1). The output end of the motor (41) is fixedly connected to one end of one of the crushing rollers (4).

6. The non-ferrous metal crushing equipment with adaptive feeding according to claim 2, characterized in that, The output end of the hydraulic cylinder (17) is equipped with an electromagnet, which is used to magnetically attract and squeeze the disc (23) during reset to drive it to reset.

7. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The right side of the crushing box (1) is hinged with a viewing cabinet door (12) with built-in tempered glass for observing the internal operating status and maintenance.

8. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The bottom of the crushing box (1) is fixedly connected with multiple support legs (13).

9. The non-ferrous metal crushing equipment with adaptive feeding according to claim 1, characterized in that, The rear end face of the crushing box (1) is also fixedly connected to a motor (14). The output end of the motor (14) is connected to the storage roller (63) through a sprocket and chain mechanism to drive the storage roller (63) to rotate in both directions.

10. A non-ferrous metal crushing device with adaptive feeding according to claim 1, characterized in that, There are four material plates (21), which are evenly distributed around the drive shaft (22), and material holding space is formed between adjacent material plates (21).

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