Plastic extrusion equipment for plastic waste processing recycling

Abstract

The application discloses a kind of plastic extrusion equipment for plastic waste processing recycling, belongs to granulating extrusion equipment technical field, including main module, back to furnace module and quantitative discharging module, the main module includes extruder main body, the bottom of the extruder main body is fixedly connected with bottom plate, the front end surface of the extruder main body and the top of bottom plate are fixedly connected with heat dissipation water tank, the top of the heat dissipation water tank is fixedly connected with granulator, cooling assembly is arranged in the heat dissipation water tank, by the setting of large-aperture inclined screen, small-aperture inclined screen, vibration assembly, driving assembly, lifting assembly and material guiding box, so that the device can distinguish between oversized and undersized unqualified plastic particles, the unqualified plastic is also sent into the hopper by lifting assembly to be re-melted and re-extruded, the unqualified particles are utilized, and the discharge quality of the device is ensured, so that the unqualified plastic can not affect subsequent use.

Description

A plastic extrusion device for processing and recycling plastic waste. Technical Field

[0001] This invention relates to the field of granulation extrusion equipment technology, and more specifically, to a plastic extrusion equipment for processing and recycling plastic waste. Background Technology

[0002] Plastic extrusion is a process of plastic machining. The screw and barrel of the granulation extruder adopt an advanced "modular" design. The screw is composed of various types of screw blocks mounted on the mandrel. The inner liner inside the barrel can be adjusted according to the different screw blocks, so as to flexibly combine the ideal thread element structure according to the material type and other process requirements.

[0003] Regarding the aforementioned technologies, while current granulation extrusion equipment can perform granulation operations, it is difficult to avoid situations where the output particle size is unqualified. This manifests as inconsistent particle size, with some plastic particles being too large or too small. This is usually caused by uneven fineness of the raw material, insufficient die compression ratio, or improper cutter position. Such problems are difficult to avoid, and they seriously affect the product quality of plastic particles and their subsequent use. Discarding unqualified raw materials would result in resource waste. Therefore, a plastic extrusion device for processing and recycling plastic waste is proposed. Summary of the Invention

[0004] To address the above problems, this invention provides a plastic extrusion device for processing and recycling plastic waste, employing the following technical solution:

[0005] A plastic extrusion device for processing and recycling plastic waste includes a main module, a recycling module, and a quantitative feeding module. The main module includes an extruder body with a base plate fixedly connected to its bottom. A cooling water tank is fixedly connected between the front end face of the extruder body and the top of the base plate. A granulator is fixedly connected to the top of the cooling water tank. A cooling assembly is installed inside the cooling water tank. A hopper is located on the top of the extruder body away from the cooling water tank. An inclined plate is fixedly connected to the front end face of the granulator. The recycling module includes a sorting box fixedly connected to the front end face of the cooling water tank. A large-aperture inclined screen and a small-aperture inclined screen are movably connected inside the sorting box. The small-aperture inclined screen is located below the large-aperture inclined screen. A fixed connection is established between the large-aperture and small-aperture inclined screens. Two connecting rods are provided. A first guide plate is fixedly connected inside the sorting box, and both connecting rods pass through the first guide plate. A guide box is fixedly connected to one side of the sorting box. A first discharge port and a third discharge port are opened on one side of the sorting box. The first discharge port is located on one side of a large-aperture inclined screen, and the third discharge port is located below a small-aperture inclined screen. A second discharge port is opened on the other side of the sorting box. The second discharge port is located on the side of the small-aperture inclined screen away from the first discharge port. A vibration assembly is provided between the two sides of the inner wall of the sorting box. The large-aperture inclined screen is connected to the vibration assembly. A drive assembly is provided between the front end face of the guide box and the vibration assembly. A lifting assembly is provided on the top of the bottom plate. The lifting assembly is connected to the bottom of the guide box and the vibration assembly. The bottom of the sorting box is inclined.

[0006] Furthermore, the vibration assembly includes two slide grooves respectively opened on both sides of the sorting box. Vibration blocks are slidably connected inside the two slide grooves. Two connecting rods are fixedly connected between the two vibration blocks and the large-aperture inclined screen. Vibration springs are fixedly connected to the bottom of the two vibration blocks and the bottom of the inner wall of the two slide grooves. Irregularly shaped rods are fixedly connected to the opposite sides of the two vibration blocks. Ball bearings are movably connected to one end of each of the two irregularly shaped rods.

[0007] Furthermore, the vibration assembly also includes a rotating long rod rotatably connected between the two sides of the inner wall of the sorting box. Both ends of the rotating long rod extend to the outside of the sorting box, and one end of the rotating long rod extends to the outside of the guide box. Two rotating wheels are fixedly connected to the outer surface of the rotating long rod. The two balls are in contact with the outer surfaces of the two rotating wheels respectively. Multiple protrusions are fixedly connected in a ring at equal intervals on the outer surfaces of the two rotating wheels.

[0008] Furthermore, the lifting assembly includes a mounting base fixedly connected to the top of the base plate, a lifting cylinder fixedly connected inside the mounting base, the lower part of the outer surface of the lifting cylinder fixedly connected to the bottom of the guide box, a lifting screw movably connected inside the lifting cylinder, the bottom end of the lifting screw extending to the bottom of the lifting cylinder, and a second guide plate fixedly connected to the top of the lifting cylinder, one end of the second guide plate being located at the top of the hopper.

[0009] Furthermore, the lifting assembly also includes a transverse rod rotatably connected inside the mounting base. One end of the transverse rod and the bottom end of the lifting screw are both fixedly connected to bevel gears, and the outer surfaces of the two bevel gears mesh with each other. The other end of the transverse rod is fixedly connected to a large sprocket, and one end of the rotating long rod is fixedly connected to a small sprocket. A chain is drivingly connected between the outer surfaces of the small sprocket and the large sprocket.

[0010] Furthermore, the drive assembly includes a motor fixedly connected to the front end face of the guide box, a first gear fixedly connected to the output shaft of the motor, and a second gear fixedly connected to the outer surface of the rotating rod, the second gear meshing with the outer surface of the first gear.

[0011] Furthermore, the quantitative feeding module includes two L-shaped rods fixedly connected to the bottom of the sorting box, a hollow box fixedly connected between one end of the two L-shaped rods, a strip groove opened on the front and rear faces of the hollow box, a quantitative box slidably connected between the two strip grooves and the interior of the hollow box, a sealing assembly provided at the bottom of the quantitative box, a return spring fixedly connected between the bottom of the inner wall of the two strip grooves and the quantitative box, two track assemblies provided on the front and rear faces of the inner wall of the hollow box, the sealing assembly connected to four track assemblies, and two hooks fixedly connected to the lower part of the front and rear faces of the hollow box.

[0012] Furthermore, the sealing assembly includes an inner empty plate fixedly connected to the bottom of the metering box. Two sealing plates are slidably connected inside the inner empty plate. The adjacent sides of the two sealing plates are in contact with each other. Multiple pressing springs are fixedly connected to the opposite sides of the two sealing plates. The opposite ends of the multiple pressing springs are respectively fixedly connected to both sides of the inner wall of the inner empty plate. The front and rear faces of the inner empty plate are provided with elongated grooves. The front and rear faces of the two sealing plates are fixedly connected with connecting shafts. The four connecting shafts extend to the outside of the inner empty plate through the two elongated grooves.

[0013] Furthermore, the track assembly includes a right-angled triangular groove formed on the rear end face of the inner wall of the hollow box. A swing arm is movably connected to the inner wall of the right-angled triangular groove. The top end of the swing arm contacts the inner wall of the right-angled triangular groove, and the other end of the swing arm extends to the rear end face of the hollow box. A torsion spring is fixedly connected between the other end of the swing arm and the rear end face of the inner wall of the hollow box. One of the connecting shafts is movably connected inside the right-angled triangular groove.

[0014] Furthermore, the cooling assembly includes a disc-shaped heat sink tube fixedly connected inside the heat sink. One end of the disc-shaped heat sink tube is fixedly connected to a square tube. The outer surface of the square tube has four mounting slots, and each of the four mounting slots contains a semiconductor cooling chip. One side of the square tube is fixedly connected to a mounting plate. A rotating rod is rotatably connected inside the mounting plate. One end of the rotating rod is fixedly connected to a fan blade, and the other end of the rotating rod is fixedly connected to a small transmission roller. The other end of the rotating rod is fixedly connected to a large transmission roller. A transmission belt connects the outer surface of the large transmission roller to the outer surface of the small transmission roller.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] (1) By setting up a large-aperture inclined screen, a small-aperture inclined screen, a vibration component, a drive component, a lifting component and a guide box, this invention enables the equipment to distinguish between oversized and undersized unqualified plastic particles, and to send the unqualified plastic particles back into the hopper through the lifting component for re-extrusion in the furnace, so as to utilize the unqualified particles and at the same time ensure the output quality of this equipment and prevent unqualified plastic particles from affecting subsequent use.

[0017] (2) By setting up a quantitative box, sealing component, return spring, track component and hook, the present invention enables the equipment to collect and quantitatively feed plastic materials, eliminating the need for staff to perform quantitative dispensing of materials afterward, reducing the burden on staff and making it easier for staff to use the equipment.

[0018] (3) The present invention enables the cooling of the liquid inside the heat sink by setting up a semiconductor cooling chip, fan blades, transmission belt and disc heat sink, thereby avoiding the water temperature from rising with the duration of use and affecting the subsequent cooling effect. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the positional structure of the lifting component of the present invention;

[0021] Figure 3 is a cross-sectional structural schematic diagram of the sorting box of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the driving component of the present invention;

[0023] Figure 5 is an enlarged structural schematic diagram of point A in Figure 4 of the present invention;

[0024] Figure 6 is a schematic diagram of the lifting component of the present invention;

[0025] Figure 7 is an exploded structural diagram of the quantitative feeding module of the present invention;

[0026] Figure 8 is a cross-sectional view of the sealing assembly of the present invention;

[0027] Figure 9 is an enlarged structural schematic diagram of point B in Figure 7 of the present invention;

[0028] Figure 10 is an enlarged structural diagram of point C in Figure 7 of the present invention;

[0029] Figure 11 is a schematic diagram of the cooling component of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 100. Main module; 110. Extruder body; 120. Cooling water tank; 130. Granulator; 140. Cooling assembly; 141. Disc-type heat dissipation pipe; 142. Square tube; 143. Semiconductor cooling chip; 144. Rotating rod; 145. Fan blade; 146. Small transmission roller; 147. Large transmission roller; 148. Transmission belt; 150. Hopper;

[0032] 200. Recycling module; 210. Sorting box; 220. Large-aperture inclined screen; 230. Small-aperture inclined screen; 240. First guide plate; 250. Guide box; 260. Vibration assembly; 261. Vibrating block; 262. Vibration spring; 263. Connecting rod; 264. Irregular rod; 265. Ball bearing; 266. Rotating rod; 267. Rotating wheel; 268. Protrusion; 270. Drive assembly; 271. Motor; 272. First gear; 273. Second gear; 280. Lifting assembly; 281. Mounting base; 282. Lifting cylinder; 283. Second guide plate; 284. Horizontal rod; 285. Bevel gear; 286. Large sprocket; 287. Small sprocket; 288. Chain; 289. Lifting screw;

[0033] 300. Quantitative feeding module; 310. L-shaped rod; 320. Hollow box; 330. Strip groove; 340. Quantitative box; 350. Sealing assembly; 351. Inner hollow plate; 352. Sealing plate; 353. Pressing spring; 354. Long strip groove; 355. Connecting shaft; 360. Return spring; 370. Track assembly; 371. Right-angle triangular groove; 372. Swing arm; 373. Torsion spring; 380. Hook. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The present invention will be further described in detail below with reference to Figures 1-11.

[0038] Please refer to Figure 1-11. A plastic extrusion device for processing and recycling plastic waste includes a main module 100, a recycling module 200, and a quantitative feeding module 300. The main module 100 includes an extruder body 110. A base plate is fixedly connected to the bottom of the extruder body 110. A heat dissipation water tank 120 is fixedly connected between the front end face of the extruder body 110 and the top of the base plate. A granulator 130 is fixedly connected to the top of the heat dissipation water tank 120. A cooling system is provided inside the heat dissipation water tank 120. Component 140, a hopper 150 is located on the top of the extruder body 110 away from the heat dissipation tank 120, an inclined plate is fixedly connected to the front end face of the granulator 130, and the remelting module 200 includes a sorting box 210 fixedly connected to the front end face of the heat dissipation tank 120. A large-aperture inclined screen 220 and a small-aperture inclined screen 230 are movably connected inside the sorting box 210. The small-aperture inclined screen 230 is located below the large-aperture inclined screen 220, and the large-aperture inclined screen 220 and the small-aperture inclined screen 230 are connected. Two connecting rods are fixedly connected between the inclined screens 230. A first guide plate 240 is fixedly connected inside the sorting box 210, and both connecting rods pass through the first guide plate 240. A guide box 250 is fixedly connected to one side of the sorting box 210. A first discharge port and a third discharge port are opened on one side of the sorting box 210. The first discharge port is located on one side of the large-aperture inclined screen 220, and the third discharge port is located below the small-aperture inclined screen 230. A second discharge port is opened on the other side of the sorting box 210. The second discharge port is located on the side of the small-aperture inclined screen 230 away from the first discharge port. A vibration component 260 is provided between the two sides of the inner wall of the sorting box 210. The large-aperture inclined screen 220 is connected to the vibration component 260. A drive component 270 is provided between the front end face of the guide box 250 and the vibration component 260. A lifting component 280 is provided on the top of the bottom plate. The lifting component 280 is connected to the bottom of the guide box 250 and the vibration component 260. The bottom of the sorting box 210 is inclined.

[0039] During operation, the operator places the raw material to be processed into the hopper 150. The material then enters the extruder body 110 through the hopper for extrusion. The extruded plastic strip is cooled by a water cooling tank 120 and then granulated by a granulator 130, completing the granulation process. The granules are guided by an inclined plate to one side of the large-aperture inclined screen 220. The operator then activates the drive assembly 270, which drives the vibration assembly 260 to rotate. During rotation, the vibration assembly 260 causes both the large-aperture inclined screen 220 and the small-aperture inclined screen 230 to vibrate. The large-aperture inclined screen 220 screens out oversized granules and guides them through the first discharge port into the feed box 250. Inside, particles that fall below the large-aperture inclined screen 220 are guided by the first guide plate 240 to one side of the small-aperture inclined screen 230. Qualified particles are then screened out by the small-aperture inclined screen 230 and introduced into the quantitative feeding module 300 through the second discharge port. Smaller particles enter the guide box 250 through the third discharge port. The guide box 250 guides oversized and undersized particles into the lifting component 280. When the vibration component 260 is working, it drives the lifting component 280, which lifts unqualified particles and sends them into the hopper 150 for re-extrusion. This allows the equipment to extrude unqualified particles, thereby improving the overall particle quality and preventing unqualified particles from affecting the output quality.

[0040] The vibration assembly 260 includes two grooves respectively opened on both sides of the sorting box 210. Vibration blocks 261 are slidably connected inside each groove. Two connecting rods 263 are fixedly connected between each vibration block 261 and a large-aperture inclined screen 220. Vibration springs 262 are fixedly connected to the bottom of each vibration block 261 and the bottom of the inner wall of each groove. Irregularly shaped rods 264 are fixedly connected to opposite sides of each vibration block 261. Ball bearings 265 are movably connected to one end of each irregularly shaped rod 264. The vibration assembly 260 also includes components rotatably connected to the sorting box 210. A rotating rod 266 is located between the two sides of the inner wall. Both ends of the rotating rod 266 extend to the outside of the sorting box 210, and one end of the rotating rod 266 extends to the outside of the guide box 250. Two rotating wheels 267 are fixedly connected to the outer surface of the rotating rod 266. Two balls 265 are in contact with the outer surface of the two rotating wheels 267 respectively. Multiple protrusions 268 are fixedly connected in a ring at equal intervals on the outer surface of the two rotating wheels 267. The lifting assembly 280 includes a mounting base 281 fixedly connected to the top of the base plate. A lifting cylinder is fixedly connected inside the mounting base 281. 282, the lower part of the outer surface of the lifting cylinder 282 is fixedly connected to the bottom of the guide box 250. A lifting screw 289 is movably connected inside the lifting cylinder 282, with its bottom end extending to the bottom of the lifting cylinder 282. A second guide plate 283 is fixedly connected to the top of the lifting cylinder 282, with one end of the second guide plate 283 located at the top of the hopper 150. The lifting assembly 280 also includes a transverse rod 284 rotatably connected inside the mounting base 281. One end of the transverse rod 284 and the bottom end of the lifting screw 289 are both fixedly connected to bevel gears 285. The outer surfaces of the bevel gears 285 mesh with each other. A large sprocket 286 is fixedly connected to the other end of the transverse rod 284. A small sprocket 287 is fixedly connected to one end of the rotating long rod 266. A chain 288 is connected between the outer surfaces of the small sprocket 287 and the large sprocket 286. The drive assembly 270 includes a motor 271 fixedly connected to the front end of the guide box 250. A first gear 272 is fixedly connected to the output shaft of the motor 271. A second gear 273 is fixedly connected to the outer surface of the rotating long rod 266. The second gear 273 meshes with the outer surface of the first gear 272.

[0041] When motor 271 is turned on, it drives the first gear 272 to rotate. The first gear 272, through the second gear 273, drives the rotating rod 266 to rotate. As the rotating rod 266 rotates, it drives two rotating wheels 267 to rotate. During this rotation, balls 265 roll on the outer surface of the wheels 267. Multiple protrusions 268 reciprocate and push the balls 265, causing the irregular rod 264 and the vibrating block 261 to vibrate reciprocally. The vibrating block 261, through the connecting rod 263, drives the large-aperture inclined screen 220 to vibrate. The large-aperture inclined screen 220, through two connecting rods, drives the small-aperture inclined screen 230 to vibrate. The large-aperture inclined screen 220 screens out oversized particles and guides them through the first discharge port into the guide box 250. Particles falling below the large-aperture inclined screen 220 are subsequently... The particles are guided by the first guide plate 240 to one side of the small-aperture inclined screen 230. Qualified particles are then screened out by the small-aperture inclined screen 230 and introduced into the metering box 340 through the second discharge port. Smaller particles will enter the guide box 250 through the third discharge port. The guide box 250 will guide oversized and undersized particles into the lifting cylinder 282. During operation, the rotating long rod 266 will drive the small sprocket 287 to drive the chain 288. The chain 288 drives the large sprocket 286 and the transverse rod 284. The transverse rod 284, through the meshing of two bevel gears 285, drives the lifting screw 289 to rotate. The lifting screw 289 will push the particles to rise, so that after rising, the particles are introduced into the hopper 150 through the second guide plate 283 for re-extrusion. This allows the equipment to extrude unqualified particles, thereby improving the overall particle quality and preventing unqualified particles from affecting the output quality.

[0042] The quantitative feeding module 300 includes two L-shaped rods 310 fixedly connected to the bottom of the sorting box 210. A hollow box 320 is fixedly connected between one end of the two L-shaped rods 310. Both the front and rear faces of the hollow box 320 have strip grooves 330. A quantitative box 340 is slidably connected between the two strip grooves 330 and the interior of the hollow box 320. A sealing component 350 is provided at the bottom of the quantitative box 340. The bottom of the inner wall of the two strip grooves 330 is fixedly connected to the quantitative box 340. A return spring 360 is fixedly connected to the hollow box 320. Two track assemblies 370 are provided on both the front and rear faces of the inner wall of the hollow box 320. A sealing assembly 350 is connected to four track assemblies 370. Two hooks 380 are fixedly connected to the lower part of both the front and rear faces of the hollow box 320. The sealing assembly 350 includes an inner hollow plate 351 fixedly connected to the bottom of the metering box 340. Two sealing plates 352 are slidably connected inside the inner hollow plate 351. The adjacent sides of the two sealing plates 352 are in contact with each other. Multiple pressing springs 353 are fixedly connected to the opposite sides of the two sealing plates 352. The opposite ends of the multiple pressing springs 353 are fixedly connected to both sides of the inner wall of the inner hollow plate 351. Long slots 354 are provided on both the front and rear faces of the inner hollow plate 351. Connecting shafts 355 are fixedly connected to both the front and rear faces of the two sealing plates 352. The four connecting shafts 355 extend to the outside of the inner hollow plate 351 through the two long slots 354. The track assembly 370 includes... The device includes a right-angled triangular groove 371 formed on the rear end face of the inner wall of the hollow box 320. A swing arm 372 is movably connected to the inner wall of the right-angled triangular groove 371. The top end of the swing arm 372 contacts the inner wall of the right-angled triangular groove 371. The other end of the swing arm 372 extends to the rear end face of the hollow box 320. A torsion spring 373 is fixedly connected between the other end of the swing arm 372 and the rear end face of the inner wall of the hollow box 320. A connecting shaft 355 is movably connected inside the right-angled triangular groove 371.

[0043] The packaging bag opening is pre-hung below the hollow box 320 using four hooks 380. As the internal weight of the dispensing box 340 increases, the dispensing box 340 gradually descends, pressing the return spring 360 to retract. Simultaneously, the connecting shaft 355 slides in the vertical part of the right-angled triangular groove 371. When the connecting shaft 355 slides to the horizontal part of the right-angled triangular groove 371, two pressing springs 353 pull the two sealing plates 352 to open. When the two sealing plates 352 open, the particles inside the dispensing box 340 will... The material will fall into the packaging bag. As the weight inside the metering box 340 decreases, the return spring 360 pushes the metering box 340 upward. During the upward movement of the metering box 340, the connecting shaft 355 moves in the inclined part inside the right-angle triangular groove 371 and passes through the swing arm 372. At this time, the two sealing plates 352 close again, thus completing the reset of the metering box 340. Afterward, the packaging bag is removed for replacement, and the metering box 340 performs the receiving operation again, thereby completing the metering and feeding, which is convenient for the staff to use this equipment.

[0044] The cooling assembly 140 includes a disc-shaped heat sink 141 fixedly connected inside the heat sink 120. One end of the disc-shaped heat sink 141 is fixedly connected to a square tube 142. The outer surface of the square tube 142 has four mounting slots. Semiconductor cooling chips 143 are installed inside each of the four mounting slots. A mounting plate is fixedly connected to one side of the square tube 142. A rotating rod 144 is rotatably connected inside the mounting plate. One end of the rotating rod 144 is fixedly connected to a fan blade 145. The other end of the rotating rod 144 is fixedly connected to a small transmission roller 146. The other end of the rotating long rod 266 is fixedly connected to a large transmission roller 147. A transmission belt 148 is used to transmit power between the outer surface of the large transmission roller 147 and the outer surface of the small transmission roller 146.

[0045] When the rotating rod 266 rotates, the large transmission roller 147 and the transmission belt 148 will accelerate the transmission of the small transmission roller 146. The small transmission roller 146 drives the rotating rod 144 and the fan blade 145 to rotate, so that the fan blade 145 delivers air to the inside of the disc heat sink 141. The semiconductor cooling chip 143 can cool the air, thereby cooling the cooling water inside the heat sink 120 and preventing it from rising in temperature over time and affecting the cooling effect.

[0046] The implementation principle of this invention is as follows: During use, the operator puts the raw material to be processed into the hopper 150. The raw material then enters the extruder body 110 through the hopper 150 for extrusion. The extruded plastic strip is cooled by the cooling water tank 120 and then granulated by the granulator 130, thus completing the granulation operation. The granules are guided by the inclined plate to one side of the large-aperture inclined screen 220. Then, the operator turns on the motor 271, which drives the first gear 272 to rotate. The first gear 272, through the second gear 273, drives the rotating rod 266 to rotate. When the rotating rod 266 rotates, it drives two rotating wheels 267 to rotate. 7. During rotation, the ball bearing 265 will roll on the outer surface of the rotating wheel 267. Multiple protrusions 268 reciprocate and push the ball bearing 265, which in turn drives the shaped rod 264 and the vibrating block 261 to vibrate reciprocally. The vibrating block 261, via the connecting rod 263, drives the large-aperture inclined screen 220 to vibrate. The large-aperture inclined screen 220, via two connecting rods, drives the small-aperture inclined screen 230 to vibrate. The large-aperture inclined screen 220 will screen out oversized particles and guide them through the first discharge port into the guide box 250. Particles falling below the large-aperture inclined screen 220 are then guided by the first guide plate 240 to one side of the small-aperture inclined screen 230, and subsequently pass through the small-aperture inclined screen 230. Qualified particles are screened out and fed into the metering box 340 through the second discharge port. Smaller particles will enter the guide box 250 through the third discharge port. The guide box 250 will guide oversized and undersized particles into the lifting cylinder 282. During operation, the rotating long rod 266 will drive the small sprocket 287 to drive the chain 288. The chain 288 drives the large sprocket 286 and the horizontal rod 284. The horizontal rod 284, through the meshing of two bevel gears 285, drives the lifting screw 289 to rotate. The lifting screw 289 will push the particles to rise, so that the particles, after being lifted, are fed into the hopper 150 through the second guide plate 283 for re-extrusion. This allows the equipment to extrude unqualified particles, thereby improving the overall particle size distribution. To ensure quality and prevent substandard particles from affecting the output quality, when the rotating rod 266 rotates, it accelerates the transmission of the small transmission roller 146 via the large transmission roller 147 and the transmission belt 148. The small transmission roller 146 drives the rotating rod 144 and the fan blade 145 to rotate, causing the fan blade 145 to blow air into the disc-shaped heat sink 141. The semiconductor cooling chip 143 cools the air, and the disc-shaped heat sink 141 conducts heat to the water, thereby cooling the cooling water inside the heat sink 120 and preventing it from rising in temperature over time, thus affecting the cooling effect. As the waste material inside the metering box 340 increases over time, the packaging bag opening is pre-hung under the hollow box 320 using four hooks 380. As the weight inside the metering box 340 increases...As the metering box 340 gradually descends, it presses down on the return spring 360, causing it to retract. Simultaneously, the connecting shaft 355 slides along the vertical portion of the right-angled triangular groove 371. When the connecting shaft 355 slides to the horizontal portion of the right-angled triangular groove 371, two pressing springs 353 pull the two sealing plates 352 open. As the sealing plates 352 open, the particles inside the metering box 340 fall into the packaging bag. As the weight inside the metering box 340 decreases, the return spring 360 pushes the metering box 340 upwards. During this upward movement, the connecting shaft 355 moves along the inclined portion of the right-angled triangular groove 371 and passes through the swing arm 372. At this point, the two sealing plates 352 close again, thus completing the reset of the metering box 340. The packaging bag is then removed for replacement, and the metering box 340 resumes its receiving operation, completing the metered feeding process and facilitating the use of the equipment by the operator.

[0047] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A plastic extrusion device for processing and recycling plastic waste, comprising a main module, a recycling module, and a quantitative feeding module, characterized in that: The main module includes an extruder body, with a base plate fixedly connected to the bottom of the extruder body. A heat dissipation water tank is fixedly connected between the front end face of the extruder body and the top of the base plate. A granulator is fixedly connected to the top of the heat dissipation water tank. A cooling component is installed inside the heat dissipation water tank. A hopper is located on the top of the extruder body away from the heat dissipation water tank. An inclined plate is fixedly connected to the front end face of the granulator. The remelting module includes a sorting box fixedly connected to the front end face of the heat dissipation water tank. The quantitative feeding module includes two L-shaped rods fixedly connected to the bottom of the sorting box. A hollow box is fixedly connected between one end of the two L-shaped rods. The front and rear ends of the hollow box are provided with strip grooves. A quantitative box is slidably connected between the two strip grooves and the interior of the hollow box. A sealing component is provided at the bottom of the quantitative box. A return spring is fixedly connected between the bottom of the inner wall of the two strip grooves and the quantitative box. Two track components are provided on the front and rear ends of the inner wall of the hollow box. The sealing component is connected to four track components. Two hooks are fixedly connected to the lower part of both the front and rear faces of the empty box; the sealing assembly includes an inner empty plate fixedly connected to the bottom of the quantitative box, two sealing plates are slidably connected inside the inner empty plate, the adjacent sides of the two sealing plates are in contact with each other, and multiple pressing springs are fixedly connected to the opposite sides of the two sealing plates, with the opposite ends of the multiple pressing springs respectively fixedly connected to both sides of the inner wall of the inner empty plate; the front and rear faces of the inner empty plate are provided with elongated grooves, and the front and rear faces of the two sealing plates are fixedly connected with connecting shafts, with four connecting shafts extending to the outside of the inner empty plate through the two elongated grooves; the track assembly includes a right-angled triangular groove opened on the rear face of the inner wall of the empty box, a swing arm is movably connected to the inner wall of the right-angled triangular groove, the top end of the swing arm is in contact with the inner wall of the right-angled triangular groove, the other end of the swing arm extends to the rear face of the empty box, and a torsion spring is fixedly connected between the other end of the swing arm and the rear face of the inner wall of the empty box; one of the connecting shafts is movably connected inside the right-angled triangular groove.

2. The plastic extrusion equipment for processing and recycling plastic waste according to claim 1, characterized in that: The sorting box is internally connected to a large-aperture inclined screen and a small-aperture inclined screen, with the small-aperture inclined screen located below the large-aperture inclined screen. Two connecting rods are fixedly connected between the large-aperture and small-aperture inclined screens. A first guide plate is fixedly connected inside the sorting box, and both connecting rods pass through the first guide plate. A guide box is fixedly connected to one side of the sorting box, and a first discharge port and a third discharge port are provided on one side of the sorting box. The first discharge port is located on the side of the large-aperture inclined screen. The third discharge port is located below the small-aperture inclined screen. A second discharge port is provided on the other side of the sorting box. The second discharge port is located on the side of the small-aperture inclined screen away from the first discharge port. A vibration assembly is provided between the two sides of the inner wall of the sorting box. The large-aperture inclined screen is connected to the vibration assembly. A drive assembly is provided between the front end of the guide box and the vibration assembly. A lifting assembly is provided on the top of the bottom plate. The lifting assembly is connected to the bottom of the guide box and the vibration assembly. The bottom of the sorting box is inclined.

3. A plastic extrusion device for processing and recycling plastic waste according to claim 2, characterized in that: The vibration assembly includes two sluices respectively opened on both sides of the sorting box. Vibration blocks are slidably connected inside the two sluices. Two connecting rods are fixedly connected between the two vibration blocks and the large-aperture inclined screen. Vibration springs are fixedly connected to the bottom of the two vibration blocks and the bottom of the inner wall of the two sluices. Irregularly shaped rods are fixedly connected to the opposite sides of the two vibration blocks. Ball bearings are movably connected to one end of the two irregularly shaped rods.

4. A plastic extrusion device for processing and recycling plastic waste according to claim 3, characterized in that: The vibration assembly also includes a rotating rod rotatably connected between the two sides of the inner wall of the sorting box. Both ends of the rotating rod extend to the outside of the sorting box, and one end of the rotating rod extends to the outside of the guide box. Two rotating wheels are fixedly connected to the outer surface of the rotating rod. The two balls are in contact with the outer surfaces of the two rotating wheels respectively. Multiple protrusions are fixedly connected in a ring at equal intervals on the outer surfaces of the two rotating wheels.

5. A plastic extrusion device for processing and recycling plastic waste according to claim 4, characterized in that: The lifting assembly includes a mounting base fixedly connected to the top of the base plate, a lifting cylinder fixedly connected inside the mounting base, the lower part of the outer surface of the lifting cylinder fixedly connected to the bottom of the guide box, a lifting screw movably connected inside the lifting cylinder, the bottom end of the lifting screw extending to the bottom of the lifting cylinder, and a second guide plate fixedly connected to the top of the lifting cylinder, one end of the second guide plate being located at the top of the hopper.

6. A plastic extrusion device for processing and recycling plastic waste according to claim 5, characterized in that: The lifting assembly also includes a transverse rod rotatably connected inside the mounting base. One end of the transverse rod and the bottom end of the lifting screw are both fixedly connected to bevel gears, and the outer surfaces of the two bevel gears mesh with each other. The other end of the transverse rod is fixedly connected to a large sprocket, and one end of the rotating long rod is fixedly connected to a small sprocket. A chain is driven between the outer surfaces of the small sprocket and the large sprocket.

7. A plastic extrusion device for processing and recycling plastic waste according to claim 6, characterized in that: The drive assembly includes a motor fixedly connected to the front end of the guide box, a first gear fixedly connected to the output shaft of the motor, and a second gear fixedly connected to the outer surface of the rotating rod, the second gear meshing with the outer surface of the first gear.

8. A plastic extrusion device for processing and recycling plastic waste according to claim 7, characterized in that: The cooling assembly includes a disc-shaped heat sink tube fixedly connected inside the heat sink. One end of the disc-shaped heat sink tube is fixedly connected to a square tube. The outer surface of the square tube has four mounting slots, and each of the four mounting slots contains a semiconductor cooling chip. A mounting plate is fixedly connected to one side of the square tube. A rotating rod is rotatably connected inside the mounting plate. One end of the rotating rod is fixedly connected to a fan blade, and the other end of the rotating rod is fixedly connected to a small transmission roller. The other end of the rotating rod is fixedly connected to a large transmission roller. A transmission belt connects the outer surface of the large transmission roller to the outer surface of the small transmission roller.

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