A pop can shredder

Abstract

The application provides a pop can crushing device and relates to the field of crushing treatment. The pop can crushing device comprises a shell and supporting legs installed at the shell. The shell is internally provided with a crushing zone, a compaction zone and a water collecting zone which are sequentially communicated. Two parallel and oppositely arranged rotating shafts are installed in the crushing zone. The rotating shafts are driven to rotate around their own axes by a driving device. At least two layers of cutter groups are installed on each rotating shaft. The straight blade cutter and the sawtooth cutter work cooperatively to improve the cutting and crushing effect on the pop can. When the rotating shafts are reversed, the extrusion plate can compact the crushed fragments, thereby saving space, facilitating subsequent transportation, separating the water in the pop can and discharging the water. When the rotating shafts are reversed, the straight blade cutter and the sawtooth cutter are also reversed, thereby separating the pop can from the rotating shafts and the cutter blades, reducing the equipment failure rate caused by material winding.

Description

Technical Field

[0001] This invention relates to the field of crushing and processing, specifically to a can crushing device. Background Technology

[0002] Can crushing is the process of crushing waste aluminum cans using specialized equipment. Its main purpose is to facilitate subsequent recycling. The crushed cans are mainly composed of aluminum or steel. Aluminum can fragments can be reprocessed into new aluminum products, such as aluminum ingots and aluminum plates, after a series of processes including smelting, for use in packaging, construction, automobiles, and other industries. Steel can fragments can be recycled to produce new steel products. When crushing aluminum cans, a blade crusher can be selected, which uses high-speed rotating blades to cut and crush the material, resulting in a finer crushing. It can crush various plastic, brittle, and tough materials, such as plastic and aluminum cans, and has good adaptability to materials of different shapes, sizes, and materials. It has a good crushing effect when cutting and crushing aluminum cans.

[0003] Existing composite blade type can crushers for crushing aluminum cans have a relatively simple structure and cannot directly compress the crushed cans. As a result, the crushed can fragments take up a lot of space after falling, and additional compression devices are required to compress the fragments into blocks, which increases the equipment investment cost and floor space. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a can crushing device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a can crushing device, comprising a shell and support legs installed on the shell, wherein the shell is provided with a crushing zone, a compaction zone and a water collection zone connected in sequence, and two parallel and oppositely arranged rotating shafts are installed in the crushing zone. The rotating shafts are driven to rotate around their own axes by a driving device. Each rotating shaft is equipped with at least two layers of blades, each layer of blades including multiple spaced crushing blades. A screening frame for screening can fragments is fixedly installed in the crushing zone, and the ribs of the screening frame are used to cooperate with the crushing blades to crush the can.

[0006] A baffle is flexibly connected at the outlet of the crushing zone, and an extrusion plate is slidably connected in the compaction zone. The extrusion plate has several filter holes. The extrusion plate moves under the control of a hydraulic device. One end of one of the rotating shafts is equipped with a rotating component and a ratchet. The rotating component is fixedly connected to the rotating shaft, and the ratchet is rotatably connected to the rotating shaft. A pawl adapted to the ratchet is flexibly connected to one side of the rotating component. An eccentric shaft is rotatably connected to one side of the ratchet. One end of the eccentric shaft controls the operation of the hydraulic device through a transmission assembly.

[0007] Preferably, the shredder of each layer of the blade assembly includes a straight blade and a serrated blade, wherein the straight blade is used to cut the can in a straight line and the serrated blade is used to tear the can.

[0008] Preferably, the blade assembly further includes two sets of blade discs and two sets of rotating rods. The blade discs are fixedly connected to the rotating shaft, each rotating rod is rotatably connected to a blade disc adjacent to it, and each pulverizing blade is rotatably connected to a rotating rod adjacent to it.

[0009] Preferably, the driving device includes a drive motor and two synchronous pulleys. The drive motor is fixed to the housing via a motor frame. The output end of the drive motor is fixed to one end of one of the rotating shafts. The two synchronous pulleys are respectively fixed to one end of the two rotating shafts. The two synchronous pulleys are connected by a multi-groove belt drive.

[0010] Preferably, the screening frame further includes a frame body and several rollers, each roller being rotatably connected to the frame body, and the frame body further includes an outlet and two inlets.

[0011] Preferably, the grinding zone has a dust discharge port inside, a fixed mesh is fixedly installed inside the dust discharge port, an exhaust fan is installed inside the dust discharge port, a fixed bucket is fixedly connected to one side of the outer shell, the rotating shaft of the exhaust fan passes through the fixed bucket and is rotatably connected to the fixed bucket, a rotating wheel is fixedly connected to one end of the rotating shaft and one of the rotating shafts, the two rotating wheels are connected by belt drive, a water tank is fixedly connected to one side of the outer shell, and a water supply pipe is connected between the water tank and the fixed bucket.

[0012] Preferably, the hydraulic device includes a sleeve, a sealing plug, a special-shaped tube, a telescopic tube, an oil storage tank, an oil delivery pipe, and an oil inlet pipe. The sleeve is fixedly connected to the extrusion plate. The outer side of the sealing plug is slidably connected to the inner wall of the sleeve. The sealing plug is fixedly connected to the special-shaped tube. The special-shaped tube is connected to the telescopic tube and the oil storage tank. The oil storage tank is fixed to the outer shell. The oil storage tank is connected to the telescopic tube, the oil delivery pipe, and the oil inlet pipe. A one-way valve is installed inside the special-shaped tube and the oil delivery pipe. A valve is installed at one end of the telescopic tube and the oil inlet pipe.

[0013] Preferably, the transmission assembly includes a push-pull plate, a movable component, a straight rod, and a piston. The push-pull plate is rotatably connected to an eccentric shaft, the movable component is rotatably connected to the push-pull plate via a rotating shaft, and the two ends of the straight rod are fixedly connected to the movable component and the piston, respectively. Both the piston and the straight rod are slidably connected to the shaped tube.

[0014] Preferably, the inner bottom wall of the water collection area is inclined, a collection box is fixedly installed at the drain outlet of the water collection area, the bottom of the collection box is connected to a drain pipe, and a valve is installed at one end of the drain pipe.

[0015] Preferably, the housing further includes a feed inlet and a discharge outlet. The discharge outlet has two grooves inside, and a slider is slidably connected inside each of the two grooves. Two sealing plates are fixedly connected between the two sliders, and a handle is fixedly installed on one side of one of the sealing plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By setting up straight-bladed and serrated blades, when the shaft rotates, the straight-bladed and serrated blades work together to improve the cutting and crushing effect of aluminum cans. The shaft can also drive the exhaust fan to work, discharging dust into the water tank and reducing environmental pollution. By setting up baffles, when a certain amount of aluminum can fragments accumulate, the baffles will open and the fragments will fall into the compaction zone. When the shaft reverses, the extrusion plate can compact the cut and crushed fragments, which not only saves space but also facilitates subsequent transportation. Moreover, the extrusion plate can also separate the moisture in the aluminum can and discharge it in a concentrated manner. When the shaft reverses, it can also drive the straight-bladed and serrated blades to reverse, detaching the aluminum cans wrapped around the shaft and blades, reducing the equipment failure rate caused by material entanglement. Attached Figure Description

[0017] Figure 1 This is a front view of the outer casing of the present invention;

[0018] Figure 2 This is a rear view of the outer casing of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the cutting tool assembly and screening frame of the present invention;

[0020] Figure 4 This is a cross-sectional view of the front view of the outer casing of the present invention;

[0021] Figure 5 This is a sectional view of the overall structure of the present invention from the side.

[0022] Figure 6 For the present invention Figure 5 An enlarged view of the structural schematic diagram at point A in the middle;

[0023] Figure 7 This is a schematic diagram of the screening frame structure of the present invention;

[0024] Figure 8 This is a sectional view of the front view of the water tank of the present invention;

[0025] Figure 9 This is a schematic diagram of the ratchet, pawl, and transmission assembly of the present invention;

[0026] Figure 10 This is a cross-sectional view of the side view of the outer casing of the present invention;

[0027] Figure 11 This is a schematic diagram of the baffle structure of the present invention.

[0028] The components include: 1. Outer shell; 101. Crushing zone; 102. Compaction zone; 103. Water collection zone; 104. Feed inlet; 105. Discharge outlet; 2. Rotating shaft; 3. Drive unit; 301. Drive motor; 302. Synchronous pulley; 4. Cutting tool assembly; 401. Crushing blade; 4011. Straight blade; 4012. Serrated blade; 402. Cutter disc; 403. Rotating rod; 5. Screening frame; 501. Ribbons; 502. Frame body; 503. Roller; 6. Baffle; 7. Extrusion plate; 8. Filter holes; 9. Rotating component; 10. Ratchet; 11. 12. Pawl; 13. Eccentric shaft; 14. Transmission assembly; 15. Push-pull plate; 16. Moving part; 17. Straight rod; 18. Piston; 19. Dust outlet; 20. Fixed net; 21. Exhaust fan; 22. Fixed bucket; 23. Rotating wheel; 24. Water tank; 25. Spring; 26. Hydraulic device; 27. Sleeve; 28. Sealing plug; 29. ​​Special-shaped tube; 200. Telescopic tube; 201. Oil storage tank; 202. Oil delivery pipe; 203. Oil inlet pipe; 204. Check valve; 205. Collection box; 206. Slider; 207. Sealing plate. Detailed Implementation

[0029] like Figures 1-11As shown, a can crushing device includes a housing 1 and legs installed on the housing 1. The housing 1 also includes an inlet 104 and a outlet 105. The outlet 105 has two grooves inside, and sliders 23 are slidably connected inside each groove. Two sealing plates 24 are fixedly connected between the two sliders 23. A handle is fixedly installed on one side of one of the sealing plates 24. The housing 1 has a crushing zone 101, a compaction zone 102 and a water collection zone 103 connected in sequence inside. Two parallel and oppositely arranged rotating shafts 2 are installed in the crushing zone 101. Both ends of the two rotating shafts 2 pass through the housing 1 and are rotatably connected to the housing 1. The rotating shafts 2 are driven by a driving device 3 to rotate around their own axes. The rotation drive device 3 includes a drive motor 301 and two synchronous pulleys 302. The drive motor 301 is fixed to the housing 1 via a motor frame. The output end of the drive motor 301 is fixed to one end of one of the rotating shafts 2. The two synchronous pulleys 302 are respectively fixed to one end of the two rotating shafts 2. The two synchronous pulleys 302 are connected by a multi-groove belt drive. The drive motor 301 drives the two rotating shafts 2 to rotate in both directions, thereby causing several crushing blades 401 to rotate in both directions. Each rotating shaft 2 is equipped with at least two layers of blade sets 4. Each layer of blade set 4 includes multiple spaced-apart crushing blades 401. The crushing blades 401 in each layer of blade set 4 include straight blades 4011 and serrated blades 4012.Straight-bladed blades 4011 are used for stable straight-line cutting of aluminum cans, while serrated blades 4012 are used for tearing aluminum cans. The straight-bladed blades 4011 and serrated blades 4012 are arranged at preset intervals in each layer of blade assembly 4, allowing them to work together to comprehensively improve the crushing effect when crushing aluminum cans. Blade assembly 4 also includes two sets of blade discs 402 and two sets of rotating rods 403. The blade discs 402 are fixedly connected to the rotating shaft 2. Each rotating rod 403 is rotatably connected to a nearby set of blade discs 402, and each crushing blade 401 is rotatably connected to a nearby rotating rod 403. A screening frame 5 for screening aluminum can fragments is fixedly installed in the crushing zone 101. The screening frame 5 also includes a frame body 502 and several rollers 503, each roller 503 being rotatably connected to the frame body 502. The frame body 502 includes a discharge port and two inlets. The ribs 501 of the screening frame 5 are used to cooperate with the crushing blades 401 to squeeze the aluminum can, pulverizing it. The crushing zone 101 has a dust exhaust port 14 inside, with a fixed mesh 15 installed inside. An exhaust fan 16 is installed inside the dust exhaust port 14. A fixed bucket 17 is fixedly connected to one side of the outer casing 1. The rotating shaft 2 of the exhaust fan 16 passes through the fixed bucket 17 and is rotatably connected to it. A rotating wheel 18 is fixedly connected to one end of the rotating shaft 2 and another end of the rotating shaft 2. The two rotating wheels 18 are connected by a belt drive. A water tank 19 is fixedly connected to one side of the outer casing 1. A water pipe connects the water tank 19 to the fixed bucket 17. The water tank 19 contains purified water. When the rotating shaft 2 rotates, the blades of the exhaust fan 16 can discharge the dust from the crushing zone 101 and discharge it into the water tank 19 containing purified water through the water pipe. Water itself has a certain adsorption capacity; some soluble components in the dust will dissolve in the water. Simultaneously, water can adsorb some harmful substances on the surface of the dust, thereby reducing its environmental pollution.

[0030] A baffle 6 is elastically connected to the outlet of the crushing zone 101. The baffle 6 is rotatably connected to the inner wall of the compaction zone 102 via a rotating shaft. The baffle 6 is fixed to the rotating shaft. A torsion spring B is fixedly installed between the rotating shaft in the baffle 6 and the outer shell 1. There are two baffles 6, which are symmetrically arranged. A spring 20 is fixedly connected between the baffle 6 and the inner bottom wall of the water collection zone 103. The inner bottom wall of the water collection zone 103 is inclined. A collection box 22 is fixedly installed at the drain outlet of the water collection zone 103. A drain pipe is connected to the bottom of the collection box 22. A valve is installed at one end of the drain pipe, allowing water in the water collection zone 103 to be collected along the inclined surface at its bottom. The water flows from the drain outlet of zone 103 into the collection box 22. By opening the valve, the water is discharged from the drain pipe, and the spring 20 is in a static state. A pressing plate 7 is slidably connected in the compaction zone 102. The pressing plate 7 has several filter holes 8. The pressing plate 7 is moved under the control of the hydraulic device 21. One end of one of the rotating shafts 2 is equipped with a rotating component 9 and a ratchet 10. The rotating component 9 is fixedly connected to the rotating shaft 2, and the ratchet 10 is rotatably connected to the rotating shaft 2. A pawl 11 that matches the ratchet 10 is elastically connected to one side of the rotating component 9. The pawl 11 is rotatably connected to the rotating component 9 through the rotating shaft, and the pawl 11 is rotatably connected to the rotating component 9. A torsion spring A is installed between the ratchet 10 and an eccentric shaft 12 is rotatably connected to one side of the ratchet 10. One end of the eccentric shaft 12 controls the operation of the hydraulic device 21 through the transmission assembly 13. The hydraulic device 21 includes a sleeve 201, a sealing plug 202, a special-shaped tube 203, a telescopic tube 204, an oil storage tank 205, an oil delivery pipe 206, and an oil inlet pipe 207. The sleeve 201 is fixedly connected to the extrusion plate 7. The outer side of the sealing plug 202 is slidably connected to the inner wall of the sleeve 201. The sealing plug 202 is fixedly connected to the special-shaped tube 203. The special-shaped tube 203 is connected to the telescopic tube 204 and the oil storage tank 205. The oil storage tank 205 is fixedly connected to the outer shell 1. The oil storage tank 205 is connected to the telescopic pipe 204, the oil delivery pipe 206, and the oil inlet pipe 207. One-way valves 208 are installed inside the special-shaped pipe 203 and the oil delivery pipe 206. Valves are installed at one end of the telescopic pipe 204 and the oil inlet pipe 207. The transmission assembly 13 includes a push-pull plate 131, a movable part 132, a straight rod 133, and a piston 134. The push-pull plate 131 is rotatably connected to the eccentric shaft 12. The movable part 132 is rotatably connected to the push-pull plate 131 through a rotating shaft. The two ends of the straight rod 133 are fixedly connected to the movable part 132 and the piston 134, respectively. The piston 134 and the straight rod 133 are slidably connected to the special-shaped pipe.

[0031] In use, the aluminum can to be cut and crushed is first fed into the crushing zone of the outer shell 1 through the feed inlet 104. Simultaneously, the drive motor 301 drives the rotating shaft 2 to rotate. Since the two rotating shafts 2 are fixed to two synchronous pulleys 302 respectively, and the two synchronous pulleys 302 are connected by a multi-groove belt drive, when one rotating shaft 2 rotates, the two rotating shafts 2 can rotate synchronously under the transmission connection of the two synchronous pulleys 302. Then, the two rotating shafts 2 drive the two layers of blade sets 4 to rotate. Each layer of blade set 4 includes multiple spaced-apart crushing blades 40. 1. The shredder 401 of the blade assembly 4 includes a straight blade 4011 and a serrated blade 4012. When the serrated blade 4012 rotates, its serrated structure can grip the surface of the can upon contact. When the blade disc 402 drives the serrated blade 4012B to rotate, the serrations act like a saw, tearing the can through repeated biting and tearing actions. Especially for the more complex parts of the can, such as the top and bottom, the serrated blade 4012 can effectively tear them apart. For example, the pull tab of the can may be torn apart by the serrated blade 4012. The 12-tooth serrations bite into the can, then tear it apart as the blade rotates. When the cutter head 402, equipped with the straight-edged blade 4011, begins to rotate, the straight-edged blade 4011, along with the rapid rotation of the cutter head 402, causes the can to enter the crushing chamber. The straight-edged blade 4011, with its sharp edge, contacts the can. Due to the high rotation speed, the blade generates a powerful cutting force on the can, much like cutting an object with a knife. The straight-edged blade 4011 can cut the can's cylindrical body along the axial or circumferential direction. For example, for a complete can, the straight-edged blade... 4011A may first cut the can body into several long strips. The straight blade 4011 and the serrated blade 4012 work together during the crushing process. The straight blade 4011A mainly cuts the main body of the can, while the serrated blade 4012 focuses on tearing the complex structural parts of the can. For example, after the straight blade 4011 cuts the can body into larger pieces, the serrated blade 4012 can further tear and refine the edges or connecting parts of these pieces, thereby improving the overall crushing effect.

[0032] Next, the crushed can fragments pass through the gaps between several rollers 503 and enter the bottom of the frame 502, then fall onto the baffle 6. When the can fragments accumulate to a certain amount at the baffle 6, the weight of these can fragments will force the baffle 6 to open. At this time, the baffle 6 drives the rotating shaft opposite it to rotate, causing the torsion spring B to undergo elastic deformation. When the can fragments fall into the compaction zone 102, the elastic deformation force of the torsion spring B is used to reset the baffle 6. Therefore, whenever the can fragments accumulate to a certain amount at the baffle 6, the baffle 6 will open, collecting the can fragments in the compaction zone 102.

[0033] Next, when the number of can fragments in the compaction zone 102 reaches a predetermined value, the drive motor 301 is activated to reverse the rotation of the shaft 2. This reverses the rotation of the shaft 2, causing the straight-bladed cutter 4011 and the serrated cutter 4012 to rotate in the opposite direction. During the crushing process, some tough materials, such as plastic film, may become entangled on the cutters. When the serrated cutter 4012 rotates in the opposite direction, the reverse motion of the saw teeth helps to clear these entangled materials. The reverse-rotating saw teeth apply a force opposite to the direction of entanglement, making it easier for the entangled material to detach from the serrated cutter 4012, reducing equipment failure rates caused by material entanglement. For materials that have already been initially crushed, the reverse-rotating serrated cutter 4012 can further cut them, and larger fragments can be further removed by the reverse-rotating saw teeth. Under the action of the teeth, the material will be cut again from different angles to further refine it. If some materials, such as waste containing sticky components, are blocked on the blade of the straight blade 4011 during the crushing process, the reverse rotation can help clean the blade. When the straight blade 4011 rotates in the reverse direction, the material blocked on the blade will be subjected to the reverse force, which will loosen it and make it fall off the blade, keeping the blade clean and ensuring that the cutting performance of the blade is not affected. Moreover, for some irregularly shaped materials, the reverse rotating long cutting blade can cut the material from different angles. After the forward rotation cutting, some materials may not be fully crushed due to their shape or position. When rotating in the reverse direction, the blade can contact these materials at a new angle to make supplementary cutting, improving the crushing effect and uniformity of the material.On the other hand, when the rotating shaft 2 rotates in the reverse direction, the pawl 11 and the ratchet 10 can engage with each other, and the pawl 11 drives the ratchet 10 to rotate. The ratchet 10 drives the eccentric shaft 12 to perform circular motion. The eccentric shaft 12 drives the transmission assembly 13 to work. The piston 134 in the transmission assembly 13 moves back and forth linearly along the inner wall of the shaped tube 203. When the piston 134 rises, the pressure inside the shaped tube 203 decreases, the one-way valve 208 inside the shaped tube 203 closes, and the one-way valve 208 inside the oil supply pipe 206 opens. The hydraulic oil in the oil storage tank 205 enters the shaped tube 203 through the oil supply pipe 206. Conversely, when the piston 134 falls, the pressure inside the shaped tube 203 increases, the one-way valve 208 inside the shaped tube 203 opens, and the one-way valve 208 inside the oil supply pipe 206 closes. The hydraulic oil in the shaped tube 203 enters the upper end of the sleeve 201. At this time, the hydraulic oil is located above the sealing plug 202, and the position of the special-shaped tube 203 remains unchanged. Under the action of hydraulic pressure, the extrusion plate 7 begins to rise and extrudes the fragments in the compaction zone 102, thus performing the compaction work. At this time, the two baffles 6 are closed. During the extrusion process, the can fragments located above press against the two baffles 6, and the baffles 6 contact the inner top wall of the compaction zone 102, making the baffles 6 more stable and facilitating the normal progress of the compaction work. The compacted cans save space and are convenient for subsequent transportation. Moreover, during the compaction process, because several filter holes 8 are opened in the extrusion plate 7, the water in the cans will fall into the water collection zone 103 through the filter holes 8, and then enter the collection box 22 from the drain outlet of the water collection zone 103 along the slope at the bottom of the water collection zone 103. Finally, the water can be discharged from the drain pipe at the bottom of the collection box 22 by opening the valve.

[0034] Finally, after the compaction is completed, the drive motor 301 drives the rotating shaft 2 to rotate forward again. During the relative rotation of the ratchet 10 and the pawl 11, the ratchet 10 will not rotate. During the upward movement of the extrusion plate 7, the spring 20 will be in a stretched state. When the ratchet 10 does not rotate, the elastic force of the spring 20 will drive the extrusion plate 7 to descend to its original position. Then, pull the handle at the sealing plate 24 to move the two sealing plates 24 and remove the compacted can.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pop can shredder device comprising a housing (1) and legs mounted at the housing (1), characterised in that: The shell (1) is provided with a crushing area (101), a compacting area (102) and a water collecting area (103) which are communicated in sequence, two parallel and opposite rotating shafts (2) are installed in the crushing area (101), the rotating shafts (2) are driven to rotate around their own axes by a driving device (3), at least two layers of cutter groups (4) are installed on each rotating shaft (2), each layer of cutter groups (4) comprises a plurality of crushing knives (401) which are distributed at intervals, a screening frame (5) for screening the crushed pieces of the easy-open cans is fixedly installed in the crushing area (101), and the ribs (501) of the screening frame (5) are used for extruding the easy-open cans in cooperation with the crushing knives (401); A baffle (6) is elastically connected to the outlet of the crushing area (101), an extruding plate (7) is slidably connected in the compacting area (102), a plurality of filter holes (8) are arranged in the extruding plate (7), the extruding plate (7) is moved by the control of a hydraulic device (21), one end of one of the rotating shafts (2) is provided with a rotating piece (9) and a ratchet wheel (10), the rotating piece (9) is fixedly connected with the rotating shaft (2), the ratchet wheel (10) is rotatably connected with the rotating shaft (2), one side of the rotating piece (9) is elastically connected with a pawl (11) matched with the ratchet wheel (10), one side surface of the ratchet wheel (10) is rotatably connected with an eccentric shaft (12), and one end of the eccentric shaft (12) controls the working of the hydraulic device (21) through a transmission assembly (13); The crushing knives (401) of each layer of cutter groups (4) comprise straight blade cutters (4011) and sawtooth cutters (4012), the straight blade cutters (4011) are used for linear cutting of the easy-open cans, the sawtooth cutters (4012) are used for tearing the easy-open cans, when the rotating shaft (2) is reversed, the extruding plate (7) can compact the crushed pieces, and can also drive the straight blade cutters (4011) and the sawtooth cutters (4012) to be reversed, so that the easy-open cans wound on the rotating shaft (2) and the blades are separated, and the equipment failure rate caused by material winding is reduced; The hydraulic device (21) comprises a sleeve (201), a sealing plug (202), a special-shaped pipe (203), an extension pipe (204), an oil storage tank (205), an oil conveying pipe (206) and an oil inlet pipe (207), the sleeve (201) is fixedly connected with the extruding plate (7), the outer side surface of the sealing plug (202) is slidably connected with the inner wall of the sleeve (201), the sealing plug (202) is fixedly connected with the special-shaped pipe (203), the special-shaped pipe (203) is in communication with the extension pipe (204) and the oil storage tank (205), the oil storage tank (205) is fixed with the shell (1), the oil storage tank (205) is in communication with the extension pipe (204), the oil conveying pipe (206) and the oil inlet pipe (207), one-way valves (208) are arranged in the special-shaped pipe (203) and the oil conveying pipe (206), and valves are arranged at one end of the extension pipe (204) and the oil inlet pipe (207). The transmission assembly (13) comprises a push-pull plate (131), a movable piece (132), a straight rod (133) and a piston (134), the push-pull plate (131) is rotationally connected with the eccentric shaft (12), the movable piece (132) is rotationally connected with the push-pull plate (131) through a rotating shaft, the two ends of the straight rod (133) are fixedly connected with the movable piece (132) and the piston (134) respectively, and the piston (134) and the straight rod (133) are both slidingly connected with the special-shaped tube.

2. A device for crushing a zip-top can according to claim 1, characterised in that: The cutter group (4) further comprises two groups of cutter discs (402) and two groups of rotating rods (403), the cutter disc (402) is fixedly connected with the rotating shaft (2), each rotating rod (403) is rotationally connected with the cutter disc (402) adjacent thereto, and each pulverizing cutter (401) is rotationally connected with the rotating rod (403) adjacent thereto.

3. A device for crushing a zip-top can according to claim 1, wherein: The driving device (3) comprises a driving motor (301) and two synchronous wheels (302), the driving motor (301) is fixed on the shell (1) through a motor bracket, the output end of the driving motor (301) is fixed with one end of one of the rotating shafts (2), and the two synchronous wheels (302) are fixed with one end of the two rotating shafts (2) respectively.

4. A pop can shredder as defined in claim 1, wherein: The screening frame (5) further comprises a frame body (502) and a plurality of rolling shafts (503), each rolling shaft (503) is rotationally connected with the frame body (502), and the frame body (502) further comprises an outlet and two inlets.

5. A pop can shredder as defined in claim 1, wherein: The inside of the pulverizing area (101) is provided with a dust discharging port (14), the inside of the dust discharging port (14) is fixedly provided with a fixed net (15), the dust discharging port (14) is provided with an exhaust fan (16), one side surface of the shell (1) is fixedly connected with a fixed barrel (17), the rotating shaft of the exhaust fan (16) penetrates through the fixed barrel (17) and is rotationally connected with the fixed barrel (17), the rotating shaft and one end of one of the rotating shafts (2) are both fixedly connected with a rotating wheel (18), the two rotating wheels (18) are transmission-connected through a belt, one side surface of the shell (1) is fixedly connected with a water tank (19), and the water tank (19) is in communication with the fixed barrel (17) through a water delivery pipe.

6. A pop can shredder as defined in claim 1, wherein: The inner bottom wall of the water collecting area (103) is a slope, the water collecting area (103) is fixedly provided with a collecting box (22) at a water outlet, the bottom of the collecting box (22) is in communication with a drain pipe, and one end of the drain pipe is provided with a valve.

7. A pop can shredder as defined in claim 1, wherein: The shell (1) further comprises a feeding port (104) and a discharging port (105), the inside of the discharging port (105) is provided with two sliding grooves, the inside of each sliding groove is slidingly connected with a sliding block (23), the two sliding blocks (23) are fixedly connected with two sealing plates (24), and one side surface of one of the sealing plates (24) is fixedly provided with a handle.

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