A waste and old buffer packaging composite regeneration device

Abstract

This application belongs to the technical field of recycling equipment and discloses a composite recycling device for waste buffer packaging. It includes a melting tank, the discharge end of which is connected to the feed end of an extruder. A feeding mechanism is provided on the melting tank, and a filter cylinder is installed inside. Multiple filter holes are perforated through the side wall of the filter cylinder. The feeding mechanism supplies waste bubble film into the filter cylinder. A heating mechanism is provided on the melting tank for heating the inside of the filter cylinder. The heating mechanism includes a connecting component, a rotating component, and a heating component. The connecting component includes a connecting plate, a turntable, a heat-conducting pipe, and a heat-conducting rod. This application, through improvements to existing technology, can filter the bubble film solution formed after melting. Compared to the existing method of directly melting and using the solution, this improves the purity of the bubble film, which is beneficial for improving the forming quality of the bubble film, while reducing the probability of particulate matter entering the extruder and other mechanical parts, causing damage to extruder components.

Description

Technical Field

[0001] This invention relates to the field of recycling equipment technology, and in particular to a composite recycling device for waste cushioning packaging. Background Technology

[0003] Most existing recycling devices directly melt the recycled waste cushioning packaging into the melting equipment, and then inject the molten waste cushioning packaging solution into the feed end of the extrusion molding machine. However, the waste cushioning packaging often contains impurities such as metal shavings, glass dust, and mud. On the one hand, these impurities, when mixed into the recycled raw materials, will not only reduce the purity and molding quality of the recycled products, but also, when hard metal objects enter the extruder, they will come into direct contact with its internal mechanical parts, increasing the probability of wear and tear on the internal mechanical parts of the extruder (such as the extruder screw), shortening the service life of the equipment, and increasing maintenance costs. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a composite recycling device for waste cushioning packaging.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a waste buffer packaging composite recycling device, including a melting box, the discharge end of the melting box being connected to the feed end of an extruder, a feeding mechanism being provided on the melting box, a filter cylinder being provided inside the melting box, a plurality of filter holes being provided through the side wall of the filter cylinder, the feeding mechanism being used to supply waste bubble film into the filter cylinder, and a heating mechanism being provided on the melting box for heating the inside of the filter cylinder.

[0006] By adopting the above technical solution, the heating mechanism is first operated to heat the inside of the filter cartridge, and then the feeding mechanism is operated to supply waste bubble film products into the filter cartridge. The high temperature inside the filter cartridge causes the waste bubble film to melt. The melted bubble film liquid flows from the filter holes of the filter cartridge to the bottom of the melting tank, and is discharged from the discharge end of the melting tank to the feed end of the extruder. Meanwhile, particulate impurities remain in the filter cartridge. This method of filtering the bubble film solution after melting improves the purity of the bubble film, which is beneficial to improving the forming quality of the bubble film. At the same time, it reduces the probability of particulate matter entering the mechanical parts of the extruder and causing damage to the extruder components.

[0007] Furthermore, an arc-shaped through hole is formed on the inner side wall of the melting box, and an arc-shaped slot communicating with the arc-shaped through hole is formed on the side wall of the melting box. The heating mechanism includes a connecting assembly, which includes a connecting plate detachably connected to the arc-shaped slot, a turntable rotatably mounted on the connecting plate near the inner side wall of the melting box and passing through the arc-shaped through hole, a heat-conducting pipe passing through and fixed to the turntable, and multiple heat-conducting rods fixed to the side wall of the heat-conducting pipe. The side wall where the connecting plate contacts the arc-shaped slot is fixed with... The filter cartridge has a high-temperature resistant sealing gasket and a hollow structure with openings on both sides. The end face of the filter cartridge with one opening is fixed to the turntable. The heat-conducting pipe and heat-conducting rod are both made of high thermal conductivity material. The filter cartridge, turntable, connecting plate and heat-conducting pipe are all coaxially arranged. An annular rotating plate coaxially arranged with the filter cartridge is rotatably installed at the end of the filter cartridge away from the turntable. The annular rotating plate abuts against the inner side wall of the melting box. The heating mechanism also includes a rotating component for driving the heat-conducting pipe to rotate and a heating component for heating the heat-conducting pipe.

[0008] By adopting the above technical solution, the rotating component drives the heat pipe to rotate, which in turn drives the heat-conducting rod fixed to the heat pipe, the turntable fixed to the heat pipe, and the filter cartridge fixed to the turntable to rotate and connect. The rotating filter cartridge will generate centrifugal force, which can accelerate the discharge of the bubble film solution into the filter cartridge and help improve the filtration speed.

[0009] Furthermore, the heat-conducting pipe passes through the connecting plate and is rotatably connected to the connecting plate. The rotating assembly includes a mounting shell fixed to the side wall of the connecting plate away from the inner wall of the melting tank and a rotating motor fixed to the mounting shell. The output end of the rotating motor passes through the side wall of the mounting shell and is rotatably connected to the mounting shell. The rotating assembly also includes two gears that are respectively fixedly sleeved on the heat-conducting pipe and the output end of the rotating motor, and the two gears are meshed together.

[0010] By adopting the above technical solution, the rotary motor drives the gear fixed to its output end to rotate. Since the two gears mesh with each other, the other gear drives the heat pipe fixed to it to rotate synchronously, thereby ensuring the normal rotation of the filter cartridge.

[0011] Furthermore, the heat pipe has a hollow structure with one open end. The heating assembly includes a fixing plate that is disposed through the side wall of the mounting shell and fixed to the mounting shell, a mounting rod that is disposed through the fixing plate and fixedly connected to the fixing plate, and a heating wire that is spirally wound on the mounting rod and located inside the heat pipe. The mounting rod is inserted into the heat pipe. The fixing plate is detachably connected to the mounting shell through a flange and screws. The mounting rod is made of a material with low thermal conductivity. The heating wire is connected to a power circuit.

[0012] By adopting the above technical solution, the power supply to the heating wire is turned on, the heating wire generates heat, and the heat is transferred to the heat-conducting pipe and the heat-conducting rod in sequence, thereby realizing the operation of heating inside the filter cartridge. In addition, the fixing plate is disassembled from the mounting shell, and then the fixing plate is moved away from the mounting shell until the heating wire is pulled out from the heat-conducting pipe, so that the heating wire can be repaired or replaced.

[0013] Furthermore, the feeding mechanism includes a crushing assembly, which includes a crushing box fixed to the melting box and communicating with the inside of the filter cylinder, two drive rods that pass through the side wall of the crushing box and are rotatably connected to the crushing box, and crushing rollers fixedly sleeved on the drive rods and located inside the crushing box. The number of crushing rollers is equal to the number of drive rods and their positions correspond one-to-one. The feeding mechanism also includes a rotating assembly for driving the two drive rods to rotate synchronously in opposite directions.

[0014] By adopting the above technical solution, waste bubble film is put into the crushing box, and the rotating component is operated at the same time to drive the two drive rods to rotate synchronously in opposite directions, which in turn drives the two crushing rollers to rotate synchronously in opposite directions, thus crushing the bubble film. Finally, the crushed bubble film is discharged from the bottom of the crushing box into the filter cartridge. The crushed bubble film is easier to melt, which helps to improve the melting speed of the bubble film.

[0015] Furthermore, the rotating assembly includes a drive housing fixed to the side wall of the crushing chamber, a first worm gear fixedly sleeved on the drive rod and located inside the drive housing, a worm rotatably installed inside the drive housing, and a rotating motor fixed to the drive housing and driving the worm to rotate. The number of first worm gears is equal to the number of drive rods and their positions correspond one-to-one. The side wall of the worm is provided with two first meshing grooves with opposite directions of rotation and equal pitch. The two first worm gears respectively mesh with the two first meshing grooves.

[0016] By adopting the above technical solution, the rotating motor drives the worm to rotate. Since the side wall of the worm has two first meshing grooves with opposite directions and equal pitch, the two first worm wheels mesh with the two first meshing grooves respectively, which can drive the two first worm wheels and the drive rods fixed to the two first worm wheels to rotate synchronously in opposite directions, thereby ensuring the normal crushing operation of the bubble film.

[0017] Furthermore, the feeding mechanism also includes a feeding assembly, which includes a feeding box fixed to the side wall of the crushing box and communicating with the inside of the crushing box, a feeding hopper fixed to and communicating with the top of the feeding box, and a vacuum pump fixed to the crushing box and generating negative pressure inside the crushing box.

[0018] By adopting the above technical solution, the bubble film is first put into the feed hopper, and then the bubble film is discharged from the feed hopper to the feeding box. At the same time, the vacuum pump is started. The vacuum pump creates negative pressure in the crushing box. The negative pressure gas discharges the bubble film from the feeding box to the crushing box, thereby ensuring the normal feeding operation of the device.

[0019] Furthermore, the feeding mechanism also includes a conveying assembly, which includes a drive rod that runs through the side wall of the feeding box and is rotatably connected to the feeding box, a driven rod that runs through the side wall of the feeding box and is rotatably connected to the feeding box, a main synchronous pulley fixedly sleeved on the drive rod, a secondary synchronous pulley fixedly sleeved on the driven rod, a synchronous belt that meshes with the secondary synchronous pulley and the main synchronous pulley, and two second worm gears that are respectively fixedly sleeved on the drive rod and the driven rod and located in the drive housing. The side wall of the worm gear is provided with a second meshing groove that meshes with the second worm gear. The number of second worm gears is equal to the number of second meshing grooves and their positions correspond one-to-one. The conveying assembly is provided in two sets and is symmetrically arranged about the middle of the feeding box. The feeding mechanism also includes a first discharge assembly for discharging large particle debris.

[0020] By adopting the above technical solution, during the rotation of the worm, the second meshing groove on the side wall of the worm engages with the second worm wheel, thereby driving the two second worm wheels to rotate synchronously and in the same direction. This allows the driving rod fixed to one of the second worm wheels, the driven rod fixed to the other second worm wheel, the main synchronous pulley fixed to the driving rod, the driven synchronous pulley fixed to the driven rod, and the synchronous belt meshing with both the main and driven synchronous pulleys to rotate synchronously. When the bubble film enters the feeding box, it will fall to the top of the synchronous belt near the feeding hopper. The synchronous belt then guides the bubble film... During the conveying process, under the negative pressure of the vacuum pump, the bubble membrane moves to the top of another synchronous belt and is then moved into the crushing chamber. Meanwhile, some large solid particles fall to the bottom of the feeding box due to their own gravity through the gap between the two synchronous belts and are discharged by the first discharge assembly. The above operation achieves the screening of large solid particles mixed in the bubble membrane, reducing the probability of large solid particles entering the crushing chamber and coming into contact with the crushing roller, thus preventing damage to the crushing roller. In addition, the coarse screening of the bubble membrane also reduces the rate of impurity accumulation in the filter cartridge.

[0021] Furthermore, the first discharge assembly includes a first discharge pipe fixed and connected to the bottom of the feeding box, a first trolley disposed below the first discharge pipe and having a self-locking function, and an air supply pipe fixed and connected to the air outlet of the vacuum pump. The end of the air supply pipe away from the vacuum pump is fixed and connected to the first discharge pipe. The feeding mechanism further includes a second discharge assembly, which includes an electromagnet fixed in the feeding box, a second discharge pipe fixed and connected to the bottom of the feeding box, and a second trolley located below the second discharge pipe and having a self-locking function. The electromagnet is located in the synchronous belt on the side away from the crushing box, and the main synchronous wheel on the side away from the crushing box is magnetized. The length of the electromagnet is less than the length of the synchronous belt.

[0022] By adopting the above technical solution, on the one hand, non-metallic particles fall into the first discharge pipe through the gap between the two synchronous belts, and are then discharged from the first discharge pipe into the first trolley for storage. Furthermore, the gas generated by the vacuum pump is discharged into the first discharge pipe through the air supply pipe, creating an upward airflow between the two synchronous belts, which reduces the probability of the bubble membrane falling into the first discharge pipe from between the two synchronous belts. On the other hand, when large metal particles are transported along the top of the synchronous belt near the filter cartridge feeding assembly, they are attracted by the magnetic force generated by the electromagnet and the magnetized main synchronous wheel when they approach the electromagnet. The metal moves with the synchronous belt to the bottom of the electromagnet. As the metal gradually moves away from the electromagnet, the magnetic force of the electromagnet decreases, and the metal falls into the second discharge pipe under its own gravity, and is finally discharged from the second discharge pipe into the second trolley for storage. This classification and screening of metals and non-metals facilitates subsequent recycling.

[0023] Furthermore, the connecting plate is inserted into the arc slot, and two hydraulic push rods are fixed on the melting box, which are symmetrically arranged about the middle of the melting box. The push rod ends of the two hydraulic push rods are fixedly connected to the connecting plate.

[0024] By adopting the above technical solution, when the hydraulic push rod is working, its push rod end extends, thereby driving the connecting plate fixed to the end of the hydraulic push rod, the turntable connected to the connecting plate, and the filter cylinder fixed to the turntable to move towards the outside of the melting tank until the filter cylinder moves outside of the melting tank so that the staff can rinse the inside of the filter cylinder.

[0025] In summary, the present invention has the following beneficial effects: In this application, by improving the prior art, the bubble film solution formed after melting can be filtered. Compared with the prior art method of directly melting and using it, the purity of the bubble film is improved, which is conducive to improving the forming quality of the bubble film. At the same time, it reduces the probability of particulate matter entering the mechanical parts such as the extruder and causing damage to the extruder components. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present invention; Figure 3This is an exploded view of an embodiment of the present invention to highlight the connection structure between the connecting plate and the melting box; Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the heat pipe and the mounting rod; Figure 5 This is an exploded view of an embodiment of the present invention to highlight the connection structure between the fixed disk and the mounting shell; Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the internal structure of the drive housing; Figure 7 This is a schematic diagram illustrating the connection structure between the crushing roller and the drive rod in an embodiment of the present invention; Figure 8 yes Figure 2 Enlarged diagram of point A in the middle.

[0027] In the diagram: 1. Melting tank; 2. Feeding mechanism; 21. Crushing assembly; 211. Crushing box; 212. Drive rod; 213. Crushing roller; 22. Rotating assembly; 221. Drive housing; 222. First worm gear; 223. Worm; 224. Rotating motor; 23. Feeding assembly; 231. Feeding box; 232. Feed hopper; 233. Vacuum pump; 24. Conveying assembly; 241. Driving rod; 242. Driven rod; 243. Main synchronous pulley; 244. Slave synchronous pulley; 245. Synchronous belt; 246. Second worm gear; 25. First discharge assembly; 251. 252. First discharge pipe; 253. First trolley; 254. Air supply pipe; 26. Second discharge assembly; 261. Electromagnet; 262. Second discharge pipe; 263. Second trolley; 3. Filter cartridge; 4. Heating mechanism; 41. Connecting assembly; 411. Connecting plate; 412. Turntable; 413. Heat-conducting pipe; 414. Heat-conducting rod; 42. Rotating assembly; 421. Mounting shell; 422. Rotating motor; 423. Gear; 43. Heating assembly; 431. Fixed plate; 432. Mounting rod; 433. Heating wire; 5. Arc-shaped through hole; 6. Arc-shaped slot; 7. Hydraulic push rod. Detailed Implementation

[0028] The technical solutions in 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-8As shown in the figure, this application discloses a composite recycling device for waste cushioning packaging, including a melting tank 1, a heating mechanism 4, and a feeding mechanism 2. The discharge end of the melting tank 1 is connected to the feed end of an extruder. A filter cylinder 3 is provided inside the melting tank 1, and multiple filter holes are provided through the side wall of the filter cylinder 3. The filter cylinder 3 has a hollow structure with openings on both sides. An arc-shaped through hole 5 is provided on the inner side wall of the melting tank 1, and an arc-shaped slot 6 communicating with the arc-shaped through hole 5 is provided on the side wall of the melting tank 1. First, the heating mechanism 4 is operated to heat the inside of the filter cylinder 3. Then, the feeding mechanism 2 is operated to supply waste bubble film into the filter cylinder 3. The high temperature inside the filter cylinder 3 causes the waste bubble film to melt. The melted bubble film liquid flows from the filter holes of the filter cylinder 3 to the bottom of the melting box 1, and is discharged from the discharge end of the melting box 1 to the feed end of the extruder. Meanwhile, particulate impurities remain in the filter cylinder 3. This method of filtering the bubble film solution after melting improves the purity of the bubble film, which is beneficial to improving the forming quality of the bubble film. At the same time, it reduces the probability of particulate matter entering the extruder and other mechanical parts and causing damage to the extruder components.

[0030] Heating mechanism 4 is mounted on the melting tank 1 and is used to heat the inside of the filter cartridge 3. Heating mechanism 4 includes a connecting assembly 41, a rotating assembly 42, and a heating assembly 43. The connecting assembly 41 includes a connecting plate 411, a turntable 412, a heat-conducting pipe 413, and a heat-conducting rod 414. The connecting plate 411 is detachably connected to the arc-shaped slot 6, and a high-temperature resistant sealing gasket is fixed to the side wall of the connecting plate 411 that contacts the arc-shaped slot 6. The turntable 412 is rotatably mounted on the side wall of the connecting plate 411 near the inside of the melting tank 1 and passes through the arc-shaped through hole 5. The end face of the filter cartridge 3 with one opening is fixed to the turntable 412. An annular rotating plate, coaxially arranged with the filter cartridge 3, is rotatably mounted on the end of the filter cartridge 3 away from the turntable 412, and the annular rotating plate abuts against the inner side wall of the melting tank 1. The heat-conducting pipe 413 passes through the turntable 412 and is fixed to the turntable 412. The heat-conducting pipe 413 passes through the connecting plate 411 and is rotatably connected to the connecting plate 411. The heat-conducting pipe 413 has a hollow structure with one open end, and multiple heat-conducting rods 414 are provided. These multiple heat-conducting rods 414 are fixed to the side wall of the heat-conducting pipe 413. Both the heat-conducting pipe 413 and the heat-conducting rods 414 are made of a material with high thermal conductivity. The filter cartridge 3, turntable 412, connecting plate 411, and heat-conducting pipe 413 are all coaxially arranged. Operating the rotating assembly 42 drives the heat-conducting pipe 413 to rotate, which in turn drives the heat-conducting rods 414 fixed to the heat-conducting pipe 413, the turntable 412 fixed to the heat-conducting pipe 413, and the filter cartridge 3 fixed to the turntable 412 to rotate. The rotating filter cartridge 3 generates centrifugal force, which can accelerate the discharge of the bubble film solution from the filter cartridge 3, thus improving the filtration speed.

[0031] The rotating assembly 42 drives the heat pipe 413 to rotate. The rotating assembly 42 includes a mounting shell 421, a rotating motor 422, and gears 423. The mounting shell 421 is fixed to the side wall of the connecting plate 411 away from the inside of the melting tank 1. The rotating motor 422 is fixed to the mounting shell 421. The output end of the rotating motor 422 passes through the side wall of the mounting shell 421 and is rotatably connected to it. Two gears 423 are provided. The two gears 423 are respectively fixedly sleeved on the heat pipe 413 and the output end of the rotating motor 422, and the two gears 423 are meshed together. When the rotating motor 422 operates, it drives the gear 423 fixed to its output end to rotate. Because the two gears 423 mesh with each other, the other gear 423 drives the heat pipe 413 fixed to it to rotate synchronously, thereby ensuring the normal rotation of the filter cartridge 3.

[0032] Heating assembly 43 is used to heat heat pipe 413. Heating assembly 43 includes a fixing plate 431, a mounting rod 432, and a heating wire 433. The fixing plate 431 is disposed through the side wall of the mounting shell 421 and fixed to the mounting shell 421. The fixing plate 431 is detachably connected to the mounting shell 421 by a flange and screws. The mounting rod 432 is disposed through the fixing plate 431 and fixedly connected to the fixing plate 431. The mounting rod 432 is inserted into the heat pipe 413 and is made of a material with low thermal conductivity. The heating wire 433 is spirally wound on the mounting rod 432 and located inside the heat pipe 413. The heating wire 433 is connected to the power supply circuit. When the power supply to the heating wire 433 is turned on, the heating wire 433 generates heat, which is then transferred to the heat-conducting pipe 413 and the heat-conducting rod 414 in sequence, thereby realizing the heating operation inside the filter cartridge 3. In addition, the fixing plate 431 is disassembled from the mounting shell 421, and then the fixing plate 431 is moved away from the mounting shell 421 until the heating wire 433 is pulled out from the heat-conducting pipe 413, so that the heating wire 433 can be repaired or replaced.

[0033] The feeding mechanism 2 is mounted on the melting tank 1 and is used to supply waste bubble film into the filter cartridge 3. The feeding mechanism 2 includes a crushing component 21, a rotating component 22, a feeding component 23, a conveying component 24, a first discharge component 25, and a second discharge component 26. The crushing component 21 includes a crushing box 211, drive rods 212, and crushing rollers 213. The crushing box 211 is fixed to the melting tank 1 and communicates with the inside of the filter cartridge 3. Two drive rods 212 are provided. The two drive rods 212 pass through the side wall of the crushing box 211 and are rotatably connected to the crushing box 211. The crushing rollers 213 are fixedly sleeved on the drive rods 212 and located inside the crushing box 211. The number of crushing rollers 213 is equal to the number of drive rods 212, and their positions correspond one-to-one. Waste bubble wrap is placed into the crushing box 211, and the rotating component 22 is operated at the same time to drive the two drive rods 212 to rotate synchronously in opposite directions, which in turn drives the two crushing rollers 213 to rotate synchronously in opposite directions, thus crushing the bubble wrap. Finally, the crushed bubble wrap is discharged from the bottom of the crushing box 211 into the filter cartridge 3. The crushed bubble wrap is easier to melt, which helps to improve the melting speed of the bubble wrap.

[0034] The rotating assembly 22 drives two drive rods 212 to rotate synchronously in opposite directions. The rotating assembly 22 includes a drive housing 221, a first worm gear 222, a worm 223, and a rotating motor 224. The drive housing 221 is fixed to the side wall of the crushing chamber 211. The first worm gear 222 is fixedly sleeved on the drive rod 212 and located inside the drive housing 221. The number of first worm gears 222 is equal to the number of drive rods 212, and their positions correspond one-to-one. The worm 223 is rotatably installed inside the drive housing 221. Two first meshing grooves with opposite directions of rotation and equal pitch are opened on the side wall of the worm 223. The two first worm gears 222 respectively mesh with the two first meshing grooves. The rotating motor 224 is fixed to the drive housing 221 and drives the worm 223 to rotate. The rotating motor 224 drives the worm 223 to rotate. Since the side wall of the worm 223 has two first meshing grooves with opposite directions of rotation and equal pitch, the two first worm wheels 222 mesh with the two first meshing grooves respectively, which can drive the two first worm wheels 222 and the drive rods 212 fixed to the two first worm wheels 222 to rotate synchronously in opposite directions, thereby ensuring the normal crushing operation of the bubble film.

[0035] The feeding assembly 23 includes a feeding box 231, a feed hopper 232, and a vacuum pump 233. The feeding box 231 is fixed to the side wall of the crushing box 211 and communicates with the inside of the crushing box 211. The feed hopper 232 is fixed to and communicates with the top of the feeding box 231. The vacuum pump 233 is fixed to the crushing box 211 and generates negative pressure inside the crushing box 211. First, bubble wrap is put into the feed hopper 232, and then the bubble wrap is discharged from the feed hopper 232 into the feeding box 231. At the same time, the vacuum pump 233 is started, which generates negative pressure inside the crushing box 211. The negative pressure gas discharges the bubble wrap from the feeding box 231 into the crushing box 211, thereby ensuring the normal feeding operation of the device.

[0036] Two sets of conveying components 24 are symmetrically arranged about the center of the feeding box 231. Each conveying component 24 includes a driving rod 241, a driven rod 242, a main synchronous pulley 243, a driven synchronous pulley 244, a synchronous belt 245, and a second worm gear 246. The driving rod 241 passes through the side wall of the feeding box 231 and is rotatably connected to it. The main synchronous pulley 243 on the side away from the crushing box 211 is magnetized. The driven rod 242 passes through the side wall of the feeding box 231 and is rotatably connected to it. The main synchronous pulley 243 is fixedly sleeved on the driving rod 241. The driven synchronous pulley 244 is fixedly sleeved on the driven rod 242. The synchronous belt 245 meshes with both the driven synchronous pulley 244 and the main synchronous pulley 243. Two second worm gears 246 are provided, each fixedly sleeved on the driving rod 241 and the driven rod 242 respectively, and located inside the drive housing 221. The worm 223 has a second meshing groove on its side wall that meshes with the second worm wheel 246. The number of second worm wheels 246 is equal to the number of second meshing grooves, and their positions correspond one-to-one. During the rotation of the worm 223, the second meshing grooves on its side wall cause the two second worm wheels 246 to rotate synchronously and in the same direction. This causes the driving rod 241 fixed to one of the second worm wheels 246, the driven rod 242 fixed to the other second worm wheel 246, the main synchronous pulley 243 fixed to the driving rod 241, the driven synchronous pulley 244 fixed to the driven rod 242, and the synchronous belt 245 meshing with both the main synchronous pulley 243 and the driven synchronous pulley 244 to rotate synchronously. When the bubble film enters the feeding box 231, it falls onto the top of the synchronous belt 245 near the feeding hopper 232, thus rotating synchronously. The bubble membrane is conveyed by belt 245. Under the negative pressure of vacuum pump 233, the bubble membrane moves to the top of another synchronous belt 245 and is then moved into the crushing box 211. Some large solid particles fall to the bottom of the feeding box 231 through the gap between the two synchronous belts 245 due to their own gravity and are discharged by the first discharge assembly 25. The above operation achieves the screening of large solid particles mixed in the bubble membrane, reducing the probability of large solid particles entering the crushing box 211 and contacting the crushing roller 213, causing the crushing roller 213 to break. In addition, the coarse screening of the bubble membrane also reduces the rate of impurity accumulation in the filter cartridge 3.

[0037] The first discharge assembly 25 is used to discharge large particles of debris. The first discharge assembly 25 includes a first discharge pipe 251, a first trolley 252, and an air supply pipe 253. The first discharge pipe 251 is fixed and connected to the bottom of the feeding box 231. The first trolley 252 is located below the first discharge pipe 251 and has a self-locking function. The air supply pipe 253 is fixed and connected to the outlet end of the vacuum pump 233, with one end of the air supply pipe 253 away from the vacuum pump 233 fixed and connected to the first discharge pipe 251. The second discharge assembly 26 includes an electromagnet 261, a second discharge pipe 262, and a second trolley 263. The electromagnet 261 is fixed inside the feeding box 231. The electromagnet 261 is located within the synchronous belt 245 on the side away from the crushing box 211, and the length of the electromagnet 261 is less than the length of the synchronous belt 245. The second discharge pipe 262 is fixed and connected to the bottom of the feed box 231, and the second trolley 263 is located below the second discharge pipe 262 and has a self-locking function. On the one hand, non-metallic particles will fall into the first discharge pipe 251 through the gap between the two synchronous belts 245, and then be discharged from the first discharge pipe 251 into the first trolley 252 for storage. On the other hand, the gas generated by the vacuum pump 233 is discharged into the first discharge pipe 251 through the air supply pipe 253, so that an upward airflow is generated in the gap between the two synchronous belts 245, which can reduce the probability of the bubble film falling into the first discharge pipe 251 through the gap between the two synchronous belts 245. On the other hand, when large metal particles are transported along the top of the synchronous belt 245 near the side of the feed assembly 23 of the filter cartridge 3, they are attracted by the magnetic force generated by the electromagnet 261 and the magnetized main synchronous wheel 243 when they approach the electromagnet 261. The metal will move with the synchronous belt 245 to the bottom of the electromagnet 261. As the metal gradually moves away from the electromagnet 261, the magnetic force of the electromagnet 261 decreases, and the metal will fall into the second discharge pipe 262 under its own gravity. Finally, it will be discharged from the second discharge pipe 262 into the second trolley 263 for storage. The metal and non-metal are classified and screened for subsequent recycling.

[0038] The connecting plate 411 is inserted into the arc-shaped slot 6. Two hydraulic push rods 7 are fixed on the melting box 1, symmetrically arranged about the middle of the melting box 1. The push rod ends of the two hydraulic push rods 7 are fixedly connected to the connecting plate 411. When the hydraulic push rods 7 are working, their push rod ends are extended, which in turn drives the connecting plate 411 fixed to the push rod ends of the hydraulic push rods 7, the turntable 412 connected to the connecting plate 411, and the filter cylinder 3 fixed to the turntable 412 to move towards the outside of the melting box 1 until the filter cylinder 3 moves outside the melting box 1 so that the operator can rinse the inside of the filter cylinder 3.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A composite recycling device for waste cushioning packaging, characterized in that: The device includes a melting box (1), the discharge end of which is connected to the feed end of the extruder. A feeding mechanism (2) is provided on the melting box (1). A filter cylinder (3) is provided inside the melting box (1). Multiple filter holes are provided through the side wall of the filter cylinder (3). The feeding mechanism (2) is used to supply waste bubble film into the filter cylinder (3). A heating mechanism (4) is provided on the melting box (1) for heating the inside of the filter cylinder (3).

2. The waste cushioning packaging composite recycling device according to claim 1, characterized in that: The inner wall of the melting box (1) is provided with an arc-shaped through hole (5), and the side wall of the melting box (1) is provided with an arc-shaped slot (6) communicating with the arc-shaped through hole (5). The heating mechanism (4) includes a connecting assembly (41), which includes a connecting plate (411) detachably connected to the arc-shaped slot (6), a turntable (412) rotatably mounted on the inner wall of the connecting plate (411) near the inner wall of the melting box (1) and inserted into the arc-shaped through hole (5), and a turntable (412) that is fixed to the turntable (412). The filter cylinder (3) has a hollow structure with openings on both sides. The end face of the filter cylinder (3) with one opening is fixed to the turntable (412). The filter cylinder (3), turntable (412), connecting plate (411) and heat pipe (413) are all coaxially arranged. The heating mechanism (4) also includes a rotating component (42) for driving the heat pipe (413) to rotate and a heating component (43) for heating the heat pipe (413).

3. The composite recycling device for waste cushioning packaging according to claim 2, characterized in that: The heat pipe (413) passes through the connecting plate (411) and is rotatably connected to the connecting plate (411). The rotating assembly (42) includes a mounting shell (421) fixed on the inner wall of the connecting plate (411) away from the melting tank (1) and a rotating motor (422) fixed on the mounting shell (421). The output end of the rotating motor (422) passes through the side wall of the mounting shell (421) and is rotatably connected to the mounting shell (421). The rotating assembly (42) also includes two gears (423) respectively fixedly sleeved on the heat pipe (413) and the output end of the rotating motor (422). The two gears (423) are meshed together.

4. The waste cushioning packaging composite recycling device according to claim 3, characterized in that: The heat pipe (413) has a hollow structure with one end open. The heating assembly (43) includes a fixing plate (431) that is disposed through the side wall of the mounting shell (421) and fixed to the mounting shell (421), a mounting rod (432) that is disposed through the fixing plate (431) and fixedly connected to the fixing plate (431), and a heating wire (433) that is spirally wound on the mounting rod (432) and located in the heat pipe (413). The mounting rod (432) is inserted into the heat pipe (413).

5. The waste cushioning packaging composite recycling device according to claim 1, characterized in that: The feeding mechanism (2) includes a crushing assembly (21), which includes a crushing box (211) fixed on the melting box (1) and communicating with the filter cylinder (3), two drive rods (212) that pass through the side wall of the crushing box (211) and are rotatably connected to the crushing box (211), and crushing rollers (213) fixedly sleeved on the drive rods (212) and located in the crushing box (211). The number of crushing rollers (213) is equal to the number of drive rods (212) and their positions correspond one-to-one. The feeding mechanism (2) also includes a rotating assembly (22) for driving the two drive rods (212) to rotate synchronously in opposite directions.

6. The waste cushioning packaging composite recycling device according to claim 5, characterized in that: The rotating assembly (22) includes a drive housing (221) fixed to the side wall of the crushing box (211), a first worm wheel (222) fixedly sleeved on the drive rod (212) and located inside the drive housing (221), a worm (223) rotatably installed inside the drive housing (221), and a rotating motor (224) fixed to the drive housing (221) and driving the worm (223) to rotate. The number of the first worm wheels (222) is equal to the number of the drive rods (212) and their positions correspond one-to-one. The side wall of the worm (223) is provided with two first meshing grooves with opposite directions of rotation and equal pitch. The two first worm wheels (222) respectively mesh with the two first meshing grooves.

7. The waste cushioning packaging composite recycling device according to claim 6, characterized in that: The feeding mechanism (2) further includes a feeding assembly (23), which includes a feeding box (231) fixed to the side wall of the crushing box (211) and communicating with the inside of the crushing box (211), a feeding hopper (232) fixed to and communicating with the top of the feeding box (231), and a vacuum pump (233) fixed to the crushing box (211) and generating negative pressure inside the crushing box (211).

8. The waste cushioning packaging composite recycling device according to claim 7, characterized in that: The feeding mechanism (2) further includes a conveying assembly (24), which includes an active rod (241) that passes through the side wall of the feeding box (231) and is rotatably connected to the feeding box (231), a driven rod (242) that passes through the side wall of the feeding box (231) and is rotatably connected to the feeding box (231), a main synchronous pulley (243) fixedly sleeved on the active rod (241), a driven synchronous pulley (244) fixedly sleeved on the driven rod (242), and a driven synchronous pulley (244) that is connected to the driven synchronous pulley (244). The feeding mechanism (2) includes a timing belt (245) meshing with the main timing pulley (243) and two second worm gears (246) respectively fixedly sleeved on the driving rod (241) and driven rod (242) and located in the drive housing (221). The side wall of the worm (223) is provided with a second meshing groove that meshes with the second worm gear (246). The number of second worm gears (246) is equal to the number of second meshing grooves and their positions correspond one-to-one. The feeding mechanism (2) also includes a first discharge assembly (25) for discharging large particles of debris.

9. A composite recycling device for waste cushioning packaging according to claim 8, characterized in that: The first discharge assembly (25) includes a first discharge pipe (251) fixed and connected to the bottom of the loading box (231), a first trolley (252) disposed below the first discharge pipe (251) and having a self-locking function, and an air supply pipe (253) fixed and connected to the air outlet of the vacuum pump (233). The end of the air supply pipe (253) away from the vacuum pump (233) is fixed and connected to the first discharge pipe (251). The feeding mechanism (2) further includes a second discharge assembly (26), which includes an electromagnet (261) fixed in the feeding box (231), a second discharge pipe (262) fixed and connected to the bottom of the feeding box (231), and a second trolley (263) located below the second discharge pipe (262) and having a self-locking function. The electromagnet (261) is located in the synchronous belt (245) on the side away from the crushing box (211), and the main synchronous wheel (243) on the side away from the crushing box (211) is magnetized. The length of the electromagnet (261) is less than the length of the synchronous belt (245).

10. A composite recycling device for waste cushioning packaging according to claim 2, characterized in that: The connecting plate (411) is inserted into the arc slot (6). Two hydraulic push rods (7) are fixed on the melting box (1) and are symmetrically arranged about the middle of the melting box (1). The push rod ends of the two hydraulic push rods (7) are fixedly connected to the connecting plate (411).

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