Disposable plastic product recycling equipment

Abstract

The invention belongs to the technical field of plastic product recovery, and particularly relates to disposable plastic product recovery equipment which comprises a storage tank, and a partition plate and an extrusion plate are arranged in an inner cavity of the storage tank; the slitting assembly comprises a push plate, and the push plate is arranged below the storage tank; the conveying assembly comprises a third motor, a sub-control assembly is arranged on an output shaft of the third motor, and a second packing auger is arranged at the other end of the first packing auger; the sub-control assembly comprises a linkage rod, and the linkage rod is connected to an inner cavity of the first auger and an output shaft of the third motor in a sliding mode. And the heat circulation assembly comprises a heat conduction pipe, and the heat conduction pipe is communicated with a preheating pipe. According to the plastic hot melting equipment, extrusion dewatering can be carried out before plastic products are processed, plastic can be processed in batches when the plastic is subjected to hot melting, uneven hot melting caused by the fact that the plastic continuously enters a hot melting cavity is avoided, heat generated when the plastic is subjected to hot melting is absorbed, the plastic hot melting equipment is applied to preheating and drying of the plastic to be subjected to hot melting, and waste heat generated by plastic hot melting is effectively recycled.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic product recycling, and particularly relates to a disposable plastic product recycling device. Background Art

[0002] The recycling and reuse of disposable plastic products (such as EPE cushioning materials, food packaging boxes, etc.) are key links in alleviating "white pollution", and their treatment efficiency and regeneration quality directly affect the value of the resource recycling economy. However, when existing recycling equipment deals with lightweight porous plastics such as EPE (expandable polyethylene), due to material characteristics and pollution residue problems, there are generally some problems. For example, a Chinese patent application with the publication number: CN119328946A provides an EPE foam plastic waste recycling device. Although this device realizes the hot melt recycling of EPE plastic waste, there are still some problems when in use.

[0003] Firstly, due to the closed-cell foaming structure and usage scenario characteristics of EPE plastic, moisture or organic liquids are often adsorbed inside. If wet EPE is directly crushed, a "liquid film lubrication" is formed between the blade and the material, resulting in a 40%-50% decrease in shear resistance, forcing the equipment to increase the rotation speed to compensate for the cutting force, which instead exacerbates the wear of the blade edge and the unevenness of the fragment size. Although the above-mentioned processing equipment can handle the accumulated water in EPE plastic, when dealing with the accumulated water in EPE, it can only blow hot air on the EPE plastic, and the treatment effect on the moisture inside the plastic product is limited.

[0004] Secondly, the closed-cell structure of EPE plastic makes its hot melt require breaking through the interfacial energy of the cell wall. The above-mentioned processing equipment uses a heating rod for constant-temperature zone heating. However, the thermal conductivity of EPE is low (0.03 - 0.04 W / m·K). During hot melt, the high temperature on the outside easily causes the surface layer of the EPE plastic to carbonize while its interior has not yet melted, forcing the hot melt time to be extended. Otherwise, it is easy to cause uneven hot melt of the plastic, affecting the quality. During the hot melt process of the above patent, the crushed EPE plastic is continuously fed for hot melt, and as a result, the EPE particles will continuously fall into the heating equipment, easily causing the unmelted plastic to be mixed with the just-crushed plastic, thereby resulting in uneven hot melt and affecting the output quality. Summary of the Invention

[0005] The purpose of the present invention is to provide a disposable plastic product recycling device that can perform extrusion dehydration before processing the plastic product, and can also batch-process the plastic during hot melt, avoiding the continuous entry of plastic into the hot melt chamber, which may cause uneven hot melt and affect the quality, and can absorb the heat generated during plastic hot melt and apply it to the preheating and drying of the plastic to be hot melted, effectively recovering the waste heat generated by plastic hot melt.

[0006] The technical solution adopted by the present invention is specifically as follows: A disposable plastic product recycling device, comprising: A storage tank, the inner cavity of the storage tank is rotatably connected with a partition plate, and the storage tank is provided with a water filtering groove below the partition plate. The inner cavity of the storage tank is slidably connected with a pressing plate, and further includes; A cutting component, the cutting component includes a push plate, the push plate is arranged below the storage tank, and an electric heating wire is arranged on the right side of the push plate; A conveying component, the conveying component includes a motor three, a sub-control component is arranged on the output shaft of the motor three, a screw conveyor one is arranged on the side of the motor three, the other end of the screw conveyor one is in contact connection with a screw conveyor two, and the sub-control component is also arranged in the inner cavities of the screw conveyor one and the screw conveyor two; The sub-control component includes a linkage rod, the linkage rod is slidably connected in the inner cavity of the screw conveyor one and the output shaft of the motor three, and the end of the linkage rod close to the screw conveyor two extends out of the screw conveyor one and extends into the inner cavity of the screw conveyor two; A heat circulation component, the heat circulation component includes a heat conduction pipe, and a preheating pipe is communicated at the outlet of the heat conduction pipe; Wherein, after the plastic product enters the storage tank, the pressing plate presses the plastic to discharge the liquid, and the cutting component is used for cutting the plastic; The sub-control component is divided into three operating states, the linkage rod is used to switch different forms. The first state: the motor three drives the linkage rod and the screw conveyor one to operate; the second form: the linkage rod drives the screw conveyor two to operate; the third form: the linkage rod drives the screw conveyor one and the screw conveyor two to operate together.

[0007] In a preferred scheme, a feed nozzle is further opened at the upper end of the storage tank, and a motor one is fixedly connected to the upper end of the storage tank. The output shaft of the motor one penetrates through the upper end of the storage tank and is fixedly connected to the upper end of the partition plate. An infrared detector is fixedly installed at the upper end of the storage tank, and the end of the infrared detector penetrates through the upper end of the storage tank and extends into the inner cavity of the storage tank.

[0008] In a preferred scheme, the partition plate is composed of three long plates merged around the output shaft of the motor one. The outer edge of the partition plate is in contact connection with the inner cavity wall of the storage tank, and a gap is reserved between the upper end of the partition plate and the upper end of the inner cavity of the storage tank.

[0009] In a preferred scheme, an electric push rod one is further fixedly installed at the upper end of the storage tank. The output end of the electric push rod one penetrates through the upper end of the storage tank, and a spiked plate is fixedly connected to the output end of the electric push rod one. The spiked plate is slidably connected in the inner cavity of the pressing plate, and the lower end of the spiked plate penetrates through the lower end of the pressing plate.

[0010] In a preferred scheme, the bottom of the inner cavity of the storage tank is divided into three parts by the partition plate. One of the parts is provided with an outlet, and the outlet is communicated with the cutting component. The lower ends of the remaining two parts are both provided with water filtering grooves, and the lower ends of the water filtering grooves are communicated with drain pipes. The outlets of the drain pipes extend out of the lower end of the storage tank.

[0011] In a preferred embodiment, the slitting assembly further includes a receiving pipe, which is connected to the lower end of the outlet part of the receiving tank. An electric push rod II is fixedly installed on the outer side of the receiving pipe. The output end of the electric push rod II penetrates through the side wall of the receiving pipe and extends into the inner cavity of the receiving pipe, and is fixedly connected to the middle part of the push plate. The upper end of the push plate is fixedly connected with a partition plate. One end of the partition plate close to the electric push rod II penetrates through the receiving pipe and is slidably connected to the upper end of the inner cavity of the receiving pipe, while the heating wire is fixedly installed at one end of the inner cavity of the receiving pipe away from the electric push rod II.

[0012] In a preferred embodiment, the slitting assembly further includes two sets of crushing rollers, which are rotatably connected to the bottom of the inner cavity of the receiving pipe. Both ends of the two sets of crushing rollers penetrate through the receiving pipe. Among them, gears are fixedly connected to the ends extending out of the front side of the receiving pipe, and the outer rings of the two sets of gears are meshed with each other. A motor II is fixedly installed on the rear side of the receiving pipe, and the output shaft of the motor II is fixedly connected to the rear end of the crushing roller away from the electric push rod II.

[0013] In a preferred embodiment, the conveying assembly further includes a conveying pipe, which is connected to the lower end of the receiving pipe. Both the auger I and the auger II are rotatably connected to the inner cavity of the conveying pipe. An extrusion head is provided at one end of the conveying pipe away from the auger I. One end of the auger II close to the extrusion head penetrates through and extends out of the extrusion head and is rotatably connected to the middle part of the extrusion head. A groove is provided at the end of the auger II extending out of the extrusion head, and a cutting knife is fixedly connected in the groove. One side of the cutting knife close to the extrusion head is in contact connection with the outer surface of the extrusion head.

[0014] In a preferred embodiment, the sub-control assembly further includes two sets of drive shafts, which are respectively fixedly connected to the outer ring of the middle section and the end close to the auger II of the linkage rod. The two sets of drive shafts are respectively movably sleeved in the inner cavities of the auger I and the auger II. Rollers are hinged on the upper and lower sides of the linkage rod close to one end of the motor III. A moving ring is provided on the outer side of the conveying pipe close to the motor III. The outer ring of the roller is rollingly connected to the inner cavity of the moving ring, and the part of the linkage rod connecting the roller is slidably connected to the inner cavity of the moving ring. A limiting rod is fixedly connected to the lower part of the conveying pipe close to one end of the motor III. The middle part of the moving ring is slidably connected to the outer ring of the limiting rod. An electric push rod III is fixedly installed at the lower end of the conveying pipe, and the output end of the electric push rod III is fixedly connected to the lower end of the moving ring.

[0015] In a preferred embodiment, the thermal cycling assembly further includes an electric heating plate, which is installed in the inner cavity of the conveying pipe. A heat conducting pipe is fixedly connected to the position of the inner cavity of the conveying pipe around the electric heating plate. The upper end inlet of the heat conducting pipe extends out of the conveying pipe, and the outlet of the heat conducting pipe is communicated with a preheating pipe. The preheating pipe is fixedly connected to the other end of the conveying pipe, and the outlet of the preheating pipe extends out of the conveying pipe. A blower is fixedly installed in the middle of the rear side of the receiving pipe, and a heat exchange pipe is fixedly connected between the blower and the receiving pipe. The lower end of the heat exchange pipe is communicated with the outlet of the preheating pipe, and the upper end of the heat exchange pipe is communicated with a water pump. The water pump is fixedly installed on the rear side of the receiving pipe. An air inlet is opened in the middle of the rear side of the receiving pipe, and a filter screen is fixedly connected in the air inlet. The outlet of the blower faces the filter screen, and the lower end of the water pump is communicated with the inlet of the heat conducting pipe.

[0016] The technical effects achieved by the present invention are as follows: The partition plate and the extrusion plate of the present invention can extrude and dehydrate plastic products before processing, avoiding a large amount of liquid accumulating in the plastic products and affecting subsequent processing. Before processing, after the storage tank receives plastic waste, the partition plate rotates to push the plastic under the extrusion plate. At this time, the extrusion plate is driven to descend and the puncturing component extends out from the inside, thereby puncturing and extruding the plastic product, so that the liquid accumulated in the plastic is discharged through the water filtering groove, thus realizing the liquid discharge before plastic processing. The conveying assembly of the present invention can batch process plastics during plastic hot melting, avoiding uneven hot melting caused by continuous entry of plastics into the hot melting chamber and affecting the quality. During plastic hot melting, after the conveying assembly receives the crushed plastics, it transports them to the thermal cycling assembly. At this time, the sub-control assembly operates to control the operation modes of the auger one and the auger two. In mode one, only the auger one operates to push the plastics towards the auger two; in mode two, the auger one and the auger two operate simultaneously to convey an appropriate amount of plastics to the thermal cycling assembly; in mode three, only the auger two operates to push the plastics for hot melting and continuously adjusts the operation direction to stir-fry the plastics. At the same time, the auger one stops operating, preventing the crushed plastics from contacting the plastics being hot melted and ensuring the uniformity of hot melting. The thermal cycling assembly of the present invention can absorb the heat generated during plastic hot melting and apply it to the preheating and drying of plastics to be hot melted, effectively recovering the waste heat generated by plastic hot melting and improving the practicality. During plastic hot melting, the heat conducting liquid in the heat conducting pipe absorbs heat and is transported into the preheating pipe. The preheating pipe then emits a certain amount of heat to preheat the plastics waiting for hot melting. Subsequently, the blowing part of the conveying assembly air-cools the heated liquid conveyed out by the preheating pipe, and the hot air generated during blowing is used to dry the plastics, further improving the utilization of waste heat recovery. The cooled liquid will flow back into the heat conducting pipe for heating, thereby circularly absorbing the waste heat during hot melting and avoiding waste of resources. Description of the Drawings

[0017] Figure 1 It is the overall structural schematic diagram of the present invention; Figure 2 It is the rear view schematic diagram of the whole in the present invention; Figure 3 It is the cross-sectional schematic diagram of the storage tank in the present invention; Figure 4 It is the structural schematic diagram of the partition board in the present invention; Figure 5 It is the cross-sectional schematic diagram of the extrusion plate in the present invention; Figure 6 It is the cross-sectional schematic diagram of the cutting component in the present invention; Figure 7 It is the structural schematic diagram of the cutting component in the present invention; Figure 8 It is the structural schematic diagram of the crushing roller in the present invention; Figure 9 It is the position relationship diagram of the cutting component and the conveying component in the present invention; Figure 10 It is the cross-sectional schematic diagram of the conveying component in the present invention; Figure 11 It is the structural schematic diagram of the cutting knife in the present invention; Figure 12 It is the cross-sectional schematic diagram of the sub-control component in the present invention; Figure 13 It is the switching state effect diagram of the sub-control component in the present invention; Figure 14 It is the structural schematic diagram of the moving ring and the roller in the present invention; Figure 15 It is the connection schematic diagram of the linkage rod, the first auger and the third motor in the present invention; Figure 16 It is the position schematic diagram of the heat circulation component in the present invention; Figure 17 It is the position schematic diagram of the water pump in the present invention; Figure 18 It is the structural schematic diagram of the heat exchange tube in the present invention; Figure 19 It is the connection schematic diagram of the heat conduction tube, the preheating tube and the heat exchange tube in the present invention.

[0018] In the attached drawings, the list of components represented by each reference numeral is as follows: 10. Storage tank; 11. Feeding nozzle; 12. Motor 1; 13. Partition plate; 14. Infrared detector; 15. Filter water tank; 16. Drain pipe; 17. Electric push rod 1; 18. Spiked plate; 19. Extrusion plate; 20. Slitting assembly; 21. Receiving pipe; 22. Electric push rod 2; 23. Pushing plate; 24. Isolation plate; 25. Electric heating wire; 26. Crushing roller; 27. Gear; 28. Motor 2; 30. Conveying assembly; 31. Conveying pipe; 32. Motor 3; 33. Screw 1; 34. Screw 2; 35. Extrusion head; 36. Cutting knife; 37. Sub-control assembly; 371. Link rod; 372. Driving shaft; 373. Roller; 374. Moving ring; 375. Limiting rod; 376. Electric push rod 3; 40. Heat circulation assembly; 41. Electric heating plate; 42. Heat conducting pipe; 43. Preheating pipe; 44. Fan; 45. Heat exchange pipe; 46. Water pump; 47. Filter screen. Detailed implementation manners

[0019] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0020] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0021] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in a preferred implementation manner" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0022] Furthermore, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structures will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width and depth should be included.

[0023] Please refer to the attached Figures 1 to 2 , Figure 12 As shown, this embodiment provides a disposable plastic product recycling device, including; A storage tank 10, the inner cavity of the storage tank 10 is rotatably connected with a partition plate 13, and the storage tank 10 is provided with a filter water tank 15 below the partition plate 13. The inner cavity of the storage tank 10 is slidably connected with an extrusion plate 19. It further includes; The slitting assembly 20 includes a push plate 23 disposed below the storage tank 10, and a heating wire 25 is provided on the right side of the push plate 23; The conveying assembly 30 includes a motor three 32. A sub-control assembly 37 is provided on the output shaft of the motor three 32. A screw conveyor one 33 is provided on the side of the motor three 32. The other end of the screw conveyor one 33 is in contact connection with a screw conveyor two 34, and the sub-control assembly 37 is also provided in the inner cavities of the screw conveyor one 33 and the screw conveyor two 34; The sub-control assembly 37 includes a linkage rod 371. The linkage rod 371 is slidably connected in the inner cavity of the screw conveyor one 33 and the output shaft of the motor three 32. One end of the linkage rod 371 close to the screw conveyor two 34 extends out of the screw conveyor one 33 and extends into the inner cavity of the screw conveyor two 34; The heat circulation assembly 40 includes a heat conduction pipe 42. A preheating pipe 43 is communicated at the outlet of the heat conduction pipe 42; Among them, after the plastic product enters the storage tank 10, the extrusion plate 19 extrudes the plastic to discharge the liquid, and the slitting assembly 20 is used for slitting the plastic; The sub-control assembly 37 is divided into three operating states. The linkage rod 371 is used to switch different forms. The first state: the motor three 32 drives the linkage rod 371 and the screw conveyor one 33 to operate; the second form: the linkage rod 371 drives the screw conveyor two 34 to operate; the third form: the linkage rod 371 drives the screw conveyor one 33 and the screw conveyor two 34 to operate together.

[0024] It should be noted that the output shaft of the motor three 32 is only movably sleeved in the inner cavity of the screw conveyor one 33 and is not connected to the screw conveyor one 33. The output shaft of the motor three 32 is of a hexagonal structure, and the inner cavity of the linkage rod 371 is also provided with a hexagonal structure (the edges are rounded for easy access), aiming to enable the linkage rod 371 to slide on the output shaft of the motor three 32 and be driven to rotate by it.

[0025] Preferably, an external control component needs to be connected before using this embodiment to control the electrical components in this embodiment to operate, such as: the process of movement, switching the working state, and temperature control.

[0026] In this embodiment, when recycling plastic products, after the storage tank 10 receives plastic waste, the partition plate 13 operates to push the plastic under the extrusion plate 19. At this time, the extrusion plate 19 descends to extrude the plastic, and the liquid accumulated in the plastic is filtered out through the water filter tank 15. Subsequently, the plastic falls into the cutting component 20 and is pushed by the push plate 23 towards the heating wire 25 for cutting. Then, the cutting component 20 crushes the cut plastic, and the crushed plastic falls into the conveying component 30 and waits to be melted. At this time, the motor three 32 drives the connecting rod 371 to drive the auger one 33 to operate, transporting the plastic to the auger two 34. During the operation, the connecting rod 371 moves and switches to the second form, enabling the auger one 33 and the auger two 34 to operate together to transport the plastic. After the transportation is completed, the connecting rod 371 continues to move and switches to the third form, enabling only the auger two 34 to operate, driving the plastic to be melted and stir-fried. Subsequently, the sub-control component 37 extrudes and cuts the melted plastic for collection. The heat circulation component 40 absorbs heat through the heat conduction pipe 42 and transfers it into the preheating pipe 43 to preheat the plastic to be melted. Then, the heat circulation component 40 applies the remaining heat to dry the plastic, improving the utilization rate of heat.

[0027] Secondly, please refer to again Figures 1 to 4 , the upper end of the storage tank 10 is also provided with a feed nozzle 11, and the upper end of the storage tank 10 is fixedly connected with a motor one 12. The output shaft of the motor one 12 penetrates through the storage tank 10 and is fixedly connected to the upper end of the partition plate 13. The upper end of the storage tank 10 is fixedly installed with an infrared detector 14, and the end of the infrared detector 14 penetrates through the upper end of the storage tank 10 and extends into the inner cavity of the storage tank 10; The partition plate 13 is composed of three groups of long plates merged around the output shaft of the motor one 12. The outer edge of the partition plate 13 is in contact connection with the inner cavity wall of the storage tank 10, and a gap is reserved between the upper end of the partition plate 13 and the upper end of the inner cavity of the storage tank 10 to accommodate the extrusion plate 19 by using the gap, avoiding the extrusion plate 19 affecting the rotation of the partition plate 13.

[0028] It should be noted that the output shaft of the motor one 12 penetrates through the storage tank 10, and a ball bearing is provided between the output shaft and the storage tank 10 to ensure the stability of the operation of the motor one 12; Three groups of reflective films are fixedly connected below the infrared detector 14 at the upper end of the partition plate 13, and the three groups of reflective films are distributed above the three long plates of the partition plate 13, aiming to enable the partition plate 13 to be detected by the infrared detector 14 every time it rotates one-third of a circle, thereby facilitating the control of the operation of the motor one 12 and avoiding damage to the device when the extrusion plate 19 descends to squeeze water while the partition plate 13 is still rotating.

[0029] In this embodiment, the feeding nozzle 11 receives plastic products and makes them fall into the storage tank 10. Subsequently, the first motor 12 drives the partition plate 13 to rotate clockwise, pushing the plastic towards the extrusion plate 19. After the infrared detector 14 detects that the partition plate 13 has rotated in place, it controls the first motor 12 to stop running, thus avoiding affecting the water extrusion work of the extrusion plate 19.

[0030] Secondly, please refer to again Figures 4 to 5 , an electric push rod 17 is fixedly installed at the upper end of the storage tank 10. The output end of the electric push rod 17 penetrates through the upper end of the storage tank 10, and a spiked plate 18 is fixedly connected to the output end of the electric push rod 17. The spiked plate 18 is slidably connected to the inner cavity of the extrusion plate 19, and the lower end of the spiked plate 18 penetrates through the lower end of the extrusion plate 19; Here, a plurality of puncture needles are fixedly connected to the lower end of the spiked plate 18, and a plurality of through grooves are formed at the lower end of the extrusion plate 19, and the through grooves and the puncture needles are adapted to each other. The purpose is that after the extrusion plate 19 descends and contacts the plastic product, when the spiked plate 18 continues to descend, it will push the puncture needles out of the extrusion plate 19 to contact the plastic product, and then the plastic inside the plastic product can be punctured by the protruding puncture needles to facilitate the discharge of the liquid inside the plastic. During the process of the spiked plate 18 rising and resetting, the puncture needles will also retract into the inner cavity of the extrusion plate 19. During the retraction process, the puncture needles will scrape off the plastic waste adhered to their outer edges due to the obstruction of the extrusion plate 19, thus avoiding the suspension of plastic waste on the puncture needles; The bottom of the inner cavity of the storage tank 10 is divided into three parts by the partition plate 13. One part is provided with an outlet, and the outlet is communicated with the cutting component 20. The lower ends of the remaining two parts are both provided with water filter grooves 15, and the lower ends of the water filter grooves 15 are communicated with a drain pipe 16. The outlet of the drain pipe 16 extends out of the lower end of the storage tank 10.

[0031] It should be noted that grooves are formed at the lower ends of the two water filter grooves 15, and the lower ends of the grooves are communicated with the drain pipe 16, aiming to facilitate the discharge of the extruded and oozed water, and the outlets of the two drain pipes 16 are communicated together; Through grooves are formed at the upper end of the extrusion plate 19, and the output end of the electric push rod 17 is movably sleeved in the through grooves and passes through the through grooves to be fixedly connected with the spiked plate 18.

[0032] In this embodiment, after the plastic product is pushed below the extrusion plate 19 by the partition plate 13, the electric push rod 17 operates to push the spiked plate 18 to descend, driving the extrusion plate 19 to descend and extrude the plastic. After the extrusion plate 19 contacts the plastic, the spiked plate 18 continues to descend, causing the puncture needles at its lower end to extend out of the extrusion plate 19, and then the plastic is punctured and extruded to drain water. The drained liquid is discharged from the drain pipe 16 through the water filter groove 15, and the drained plastic is pushed by the partition plate 13 to the outlet area of the storage tank 10 again and discharged.

[0033] Secondly, please refer to againFigures 6 to 7 The slitting assembly 20 further includes a receiving pipe 21, which is connected to the lower end of the outlet part of the storage tank 10. An electric push rod 22 is fixedly installed on the outer side of the receiving pipe 21. The output end of the electric push rod 22 penetrates the side wall of the receiving pipe 21 and extends into the inner cavity of the receiving pipe 21, and is fixedly connected to the middle of the push plate 23. An isolation plate 24 is fixedly connected to the upper end of the push plate 23. One end of the isolation plate 24 close to the electric push rod 22 penetrates the receiving pipe 21 and is slidably connected to the upper end of the inner cavity of the receiving pipe 21, while the heating wire 25 is fixedly installed at one end of the inner cavity of the receiving pipe 21 away from the electric push rod 22.

[0034] It should be noted that a blade is fixedly connected to the end of the isolation plate 24 away from the electric push rod 22, and the upper ends of both the isolation plate 24 and the blade are in contact connection below the inlet of the receiving pipe 21, aiming to block the inlet of the receiving pipe 21 by pushing the isolation plate 24 when the push plate 23 moves, preventing the plastic from falling, and being able to cut the plastic waste at the inlet of the receiving pipe 21 to avoid affecting the movement of the push plate 23. Two sets of sliding rods are fixedly connected to one end of the push plate 23 close to the electric push rod 22, and the sliding rods are slidably connected to the side of the receiving pipe 21, aiming to improve the stability of the movement of the push plate 23 by using the sliding rods. The receiving pipe 21 is an L-shaped hollow pipe, and the heating wire 25 is located at the corner, aiming to pre-cut the plastic through the heating wire 25 when the push plate 23 pushes the plastic product into contact with the heating wire 25, facilitating subsequent crushing.

[0035] Preferably, the operating temperature of the heating wire 25 is 160 degrees Celsius to 220 degrees Celsius, aiming to quickly cut the EPE plastic and prevent the plastic from melting due to excessive temperature, which would affect the transportation of the plastic.

[0036] In this embodiment, when the receiving pipe 21 receives the drained plastic, the electric push rod 22 operates to push the push plate 23 to move, pushing the plastic towards the heating wire 25 for slitting. At the same time, the isolation plate 24 moves synchronously to block the inlet of the receiving pipe 21 and cut the plastic in the inlet area of the receiving pipe 21, and push it towards the heating wire 25 for cutting together, avoiding the plastic from falling during the pushing process and affecting the reset of the push plate 23.

[0037] Please refer to again Figures 6 to 8 The slitting assembly 20 further includes two sets of crushing rollers 26. The two sets of crushing rollers 26 are rotatably connected to the bottom of the inner cavity of the receiving pipe 21 through ball bearings. Both ends of the two sets of crushing rollers 26 penetrate the receiving pipe 21. Among them, gears 27 are fixedly connected to the ends extending out of the front side of the receiving pipe 21, and the outer rings of the two sets of gears 27 are meshed with each other. A motor 28 is fixedly installed on the rear side of the receiving pipe 21, and the output shaft of the motor 28 is fixedly connected to the rear end of the crushing roller 26 away from the electric push rod 22.

[0038] It should be noted that a protective sleeve is provided on the outer ring of the two sets of gears 27 of the receiving pipe 21 to prevent external substances from affecting the normal operation of the gears 27; The two sets of crushing rollers 26 are arranged at the same height, and both ends are in contact connection with the inner cavity wall of the receiving pipe 21. After the cut plastic falls on the crushing rollers 26, the two sets of crushing rollers 26 can crush the plastic by rotating.

[0039] In this embodiment, the cut plastic will fall between the two sets of crushing rollers 26. At this time, the second motor 28 drives one set of crushing rollers 26 to operate, and drives the two sets of crushing rollers 26 to rotate relative to each other through the gears 27 to crush the cut plastic.

[0040] Please refer to again Figures 9 to 11 , the conveying assembly 30 further includes a conveying pipe 31. The conveying pipe 31 is communicated with the lower end of the receiving pipe 21. The first auger 33 and the second auger 34 are both rotatably connected to the inner cavity of the conveying pipe 31 through ball bearings. An extrusion head 35 is provided at one end of the conveying pipe 31 away from the first auger 33. One end of the second auger 34 close to the extrusion head 35 penetrates and extends out of the extrusion head 35, and is rotatably connected to the middle of the extrusion head 35 through a ball bearing. A groove is provided at one end of the second auger 34 extending out of the extrusion head 35. A cutting knife 36 is fixedly connected in the groove, and one side of the cutting knife 36 close to the extrusion head 35 is in contact connection with the outer surface of the extrusion head 35.

[0041] It should be noted that a pipe sleeve bracket is provided in the middle of the inner cavity of the conveying pipe 31, and the second auger 34 is rotatably connected in the pipe sleeve bracket through a ball bearing, aiming to improve the running stability of the second auger 34; A positioning rod and a screw rod are fixedly connected in the groove at the end of the second auger 34. The cutting knife 36 is movably sleeved on the outer rings of the positioning rod and the screw rod. A gasket and a nut are threadedly connected to the outer ring of the screw rod, and the gasket is in contact connection with the cutting knife 36; One end of the first auger 33 away from the second auger 34 penetrates and extends out of the conveying pipe 31.

[0042] Preferably, to ensure that the plastic can be quickly shaped when extruded from the extrusion head 35, a water cooling device (a common technical structure in the prior art, not described in detail here) can be installed in the extrusion head 35. In combination with this embodiment, when installing the water cooling device, the cold water pipe can receive the cold water discharged from the heat exchange pipe 45, and send the warm liquid discharged after cooling by the water cooling device into the heat conduction pipe 42 for heat absorption to form a new circulating water path, further improving the heat recovery effect.

[0043] In this embodiment, the crushed plastic falls into the conveying pipe 31 and waits to be melted. The first auger 33 moves the plastic into the second auger 34. Subsequently, the second auger 34 operates independently to stir-fry the plastic during the melting process, improving the uniformity of melting. The melted plastic is extruded from the extrusion head 35. At this time, the rotating second auger 34 drives the cutting knife 36 to rotate, cutting the extruded plastic, thereby achieving rapid cutting and granulation of the melted plastic and improving efficiency.

[0044] Please refer to again Figures 12 to 15 , the sub-control assembly 37 further includes two drive shafts 372. The two drive shafts 372 are respectively fixedly connected to the outer circle of the middle section and the end near the second auger 34 of the linkage rod 371. And the two drive shafts 372 are respectively movably sleeved in the inner cavities of the first auger 33 and the second auger 34. Both upper and lower sides of the end of the linkage rod 371 near the third motor 32 are hinged with rollers 373. A moving ring 374 is arranged on the outer side of the conveying pipe 31 near the third motor 32. The outer circle of the roller 373 is rollingly connected to the inner cavity of the moving ring 374. And the part of the linkage rod 371 connecting the roller 373 is slidably connected to the inner cavity of the moving ring 374. A limiting rod 375 is fixedly connected to the lower part of the conveying pipe 31 near the third motor 32. The middle part of the moving ring 374 is slidably connected to the outer circle of the limiting rod 375. An electric push rod three 376 is fixedly installed at the lower end of the conveying pipe 31. The output end of the electric push rod three 376 is fixedly connected to the lower end of the moving ring 374.

[0045] It should be noted that the linkage rod 371 cannot be separated from the connection with the third motor 32 at any position, ensuring that the third motor 32 can always drive the linkage rod 371 to rotate; Two long rods are arranged on the part of the linkage rod 371 connecting the roller 373. Both long rods are slidably connected in the moving ring 374, aiming to enable the linkage rod 371 to rotate in the moving ring 374 and also be driven to move by the linkage rod 371; Both ends of the first auger 33 are provided with grooves whose diameters are larger than that of the drive shaft 372, and the lengths of the grooves are both larger than that of the drive shaft 372. Moreover, a hexagonal groove is provided in the inner cavity of the first auger 33 near one end of the third motor 32, and a hexagonal groove is also provided in the inner cavity of the second auger 34 near the first auger 33. The two groups of hexagonal grooves are both adapted to the drive shaft 372, aiming to switch the form by controlling the positions of the linkage rod 371 and the drive shaft 372. When the linkage rod 371 and the drive shaft 372 are completely connected to the hexagonal groove in the first auger 33, the drive shaft 372 connected to the second auger 34 will retract into the inner cavity of the first auger 33, thereby only driving the first auger 33 to operate; when the drive shaft 372 is completely connected to the second auger 34, the drive shaft 372 located in the inner cavity of the first auger 33 will slide into the groove in the inner cavity of the first auger 33, and the drive shaft 372 cannot drive the first auger 33 to operate through the groove, thereby only driving the second auger 34 to operate; when only half of the drive shaft 372 enters the second auger 34, the drive shaft 372 located in the first auger 33 cannot completely disengage from the hexagonal groove in the inner cavity of the first auger 33, so that the linkage rod 371 and the drive shaft 372 can drive the first auger 33 and the second auger 34 to operate simultaneously; Preferably, based on the three operating states of the first auger 33 and the second auger 34, the subsequent EPE plastic hot-melting process can be divided into three stages. In the first stage, the first auger 33 operates to transport the crushed plastic to the second auger 34, and it switches to the second stage during the transportation process: the first auger 33 and the second auger 34 operate simultaneously. After an appropriate amount of plastic is transported in the second auger 34, the third stage is carried out, that is, it switches to the state where only the second auger 34 operates. In this state, by controlling the forward and reverse rotation of the third motor 32, the plastic can be repeatedly moved and stir-fried by the second auger 34 until the plastic is completely hot-melted and then transported to the extrusion head 35. In this state, the first auger 33 cannot rotate all the time, so that the remaining plastic cannot be driven into the second auger 34, ensuring the uniformity and stability of the hot-melting.

[0046] In this embodiment, when melting plastics, the movement forms of the first auger 33 and the second auger 34 are switched by adjusting the position of the linkage rod 371. When plastics need to be conveyed, the linkage rod 371 and the drive shaft 372 are completely connected to the inner cavity of the first auger 33. At this time, the third motor 32 drives the linkage rod 371 and the first auger 33 to rotate to convey the plastics in the direction of the second auger 34. Subsequently, the third electric push rod 376 drives the moving ring 374 to move, driving the linkage rod 371 to move, so that the drive shaft 372 extends out of the first auger 33 by half, driving the drive shaft 372 at the other end of the linkage rod 371 to insert into the second auger 34, causing the first auger 33 and the second auger 34 to rotate together, and completely transporting an appropriate amount of plastics into the second auger 34. Immediately afterwards, the third electric push rod 376 drives the linkage rod 371 to reset and drives the first auger 33 to run in the reverse direction to convey the remaining plastics in the direction away from the second auger 34, preventing the plastics from sliding into the second auger 34 and mixing with the plastics being melted, which affects the melting uniformity. Then, the linkage rod 371 moves again, and the drive shaft 372 completely disengages from the first auger 33 and completely inserts into the second auger 34. At this time, the third motor 32 only drives the second auger 34 to run through the linkage rod 371. During the melting process of the plastics, the second auger 34 continuously adjusts the forward and reverse running directions to stir-fry the plastics, improving the melting uniformity, and extruding after the melting is completed, thereby realizing the control of the movement forms of the two augers.

[0047] Please refer to again Figures 16 to 19 , the heat circulation component 40 further includes a heating plate 41, the heating plate 41 is installed in the inner cavity of the conveying pipe 31, and a heat conducting pipe 42 is fixedly connected to the position of the inner cavity of the conveying pipe 31 outside the heating plate 41. The upper end inlet of the heat conducting pipe 42 extends out of the conveying pipe 31, and a preheating pipe 43 is communicated with the outlet position of the heat conducting pipe 42. The preheating pipe 43 is fixedly connected to the other end of the conveying pipe 31, and the outlet of the preheating pipe 43 extends out of the conveying pipe 31. A blower 44 is fixedly installed in the middle of the rear side of the receiving pipe 21, and a heat exchange pipe 45 is fixedly connected between the blower 44 and the receiving pipe 21. The lower end of the heat exchange pipe 45 is communicated with the outlet of the preheating pipe 43, and the upper end of the heat exchange pipe 45 is communicated with a water pump 46. The water pump 46 is fixedly installed on the rear side of the receiving pipe 21. An air inlet is opened in the middle of the rear side of the receiving pipe 21, and a filter screen 47 is fixedly connected in the air inlet. The outlet of the blower 44 faces the filter screen 47, and the lower end of the water pump 46 is communicated with the inlet of the heat conducting pipe 42.

[0048] It should be noted that both the heat conducting pipe 42 and the preheating pipe 43 are copper temperature guiding rods, and the preheating pipe 43 is arranged inside the inner wall of the conveying pipe 31 where the first auger 33 is located, aiming to preheat the plastics waiting to be melted in the first auger 33; The heat exchange tube 45 is an S-shaped heat conduction tube, and the air outlet of the blower 44 faces the heat exchange tube 45, aiming to enable the blower 44 to blow air on the heat exchange tube 45 and absorb the heat of the heat exchange tube 45 to become hot air. At this time, the hot air will blow into the receiving tube 21 through the filter screen 47 to dry the plastic waste, facilitating subsequent crushing and melting; The electric heating plate 41 is an electrically controlled heating device, and its operating temperature is 160°C to 200°C, aiming to melt the EPE plastic while avoiding plastic carbonization due to excessive temperature, which affects the quality of the finished product.

[0049] In this embodiment, during the plastic melting process, the electric heating plate 41 operates to increase the temperature to melt the plastic. Subsequently, the liquid in the heat conduction tube 42 absorbs heat and flows to the preheating tube 43 to dissipate heat, preheating the plastic waiting to be melted. Immediately afterwards, the warm liquid discharged from the preheating tube 43 flows into the heat exchange tube 45. At this time, the blower 44 operates to blow air, and the air is heated by the heat exchange tube 45 to form hot air. The hot air then enters the receiving tube 21 through the filter screen 47 to dry the plastic, and the cold water discharged from the heat exchange tube 45 is transported back to the heat conduction tube 42 by the water pump 46 to be heated again, making full use of the waste heat generated by plastic melting.

[0050] The working principle of the present invention is as follows: The feeding nozzle 11 receives plastic products and makes them fall into the storage tank 10. Subsequently, the first motor 12 drives the partition plate 13 to rotate clockwise, pushing the plastic towards the extrusion plate 19. Then, the first electric push rod 17 operates to push the spike plate 18 downward, driving the extrusion plate 19 to descend and extrude the plastic. After the extrusion plate 19 contacts the plastic, the spike plate 18 continues to descend, causing the puncture needles at its lower end to extend out of the extrusion plate 19, thereby puncturing and extruding the plastic to drain water. The drained liquid is discharged from the drain pipe 16 through the water filter tank 15. When the receiving pipe 21 receives the plastic after draining, the second electric push rod 22 operates to push the push plate 23 to move, pushing the plastic towards the heating wire 25 for cutting. The cut plastic will fall between the two groups of crushing rollers 26. At this time, the second motor 28 drives one group of crushing rollers 26 to operate, and through the gear 27, the two groups of crushing rollers 26 rotate relatively to crush the cut plastic. The crushed plastic falls into the conveying pipe 31 and waits for hot melting. At this time, the movement forms of the first auger 33 and the second auger 34 are switched by adjusting the position of the connecting rod 371. When the plastic needs to be conveyed, the connecting rod 371 and the drive shaft 372 are completely connected to the inner cavity of the first auger 33, and the third motor 32 drives the connecting rod 371 and the first auger 33 to rotate to convey the plastic towards the second auger 34. Subsequently, the third electric push rod 376 drives the moving ring 374 to move, driving the connecting rod 371 to move, causing the drive shaft 372 to extend half out of the first auger 33, driving the drive shaft 372 at the other end of the connecting rod 371 to insert into the second auger 34, so that the first auger 33 and the second auger 34 rotate together to transport an appropriate amount of plastic completely into the second auger 34. Then, the connecting rod 371 moves again, and the drive shaft 372 completely disengages from the first auger 33 and completely inserts into the second auger 34. At this time, the third motor 32 only drives the second auger 34 to operate through the connecting rod 371. During the hot melting process of the plastic, the second auger 34 continuously adjusts the forward and reverse running directions to stir-fry the plastic. The hot-melted plastic is extruded from the extrusion head 35. At this time, the rotating second auger 34 drives the cutting knife 36 to rotate to cut the extruded plastic, thereby realizing rapid cutting and granulation after the plastic is hot-melted and improving the efficiency.

[0051] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A disposable plastic product recycling device, characterized in that: include: A storage tank, wherein the inner cavity of the storage tank is rotatably connected to a partition plate, and the storage tank is provided with a water filter tank below the partition plate, and the inner cavity of the storage tank is slidably connected to an extrusion plate, and further comprises; A cutting assembly, the cutting assembly includes a push plate, the push plate is arranged below the storage tank, and a heating wire is arranged on the right side of the push plate; The conveying assembly includes a motor 3, a sub-control assembly is arranged on the output shaft of the motor 3, an auger 1 is arranged on the side of the motor 3, the other end of the auger 1 is in contact with the auger 2, and the sub-control assembly is also arranged in the inner cavity of the auger 1 and the auger 2; The sub-control assembly includes a connecting rod, which is slidably connected to the inner cavity of the auger 1 and the output shaft of the motor 3, and one end of the connecting rod close to the auger 2 extends out of the auger 1 and into the inner cavity of the auger 2; A heat cycle component, the heat cycle component includes a heat pipe, and the outlet of the heat pipe is connected to a preheating pipe; Among them, after the plastic products enter the storage tank, the extrusion plate squeezes the plastic to discharge the liquid, and the cutting component is used to cut the plastic; The sub-control components are divided into three groups of operating states, and the connecting rod is used to switch different modes. In the first mode, motor three drives the connecting rod and auger one to operate; in the second mode, the connecting rod drives auger two to operate; in the third mode, the connecting rod drives auger one and auger two to operate together.

2. The disposable plastic product recycling equipment according to claim 1, characterized in that: A feeding nozzle is also provided at the upper end of the storage tank, and a motor 1 is fixedly connected to the upper end of the storage tank. The output shaft of the motor 1 passes through the storage tank and is fixedly connected to the upper end of the partition plate. An infrared detector is fixedly installed on the upper end of the storage tank, and the end of the infrared detector passes through the upper end of the storage tank and extends into the inner cavity of the storage tank.

3. The disposable plastic product recycling equipment according to claim 2, characterized in that: The partition plate is composed of three groups of long plates combined around the output shaft of motor one, the outer edge of the partition plate is in contact with the inner cavity wall of the storage tank, and a gap is reserved between the upper end of the partition plate and the upper end of the inner cavity of the storage tank.

4. The disposable plastic product recycling equipment according to claim 1, characterized in that: An electric push rod is also fixedly installed on the upper end of the storage tank, and the output end of the electric push rod passes through the upper end of the storage tank, and a spike plate is fixedly connected to the output end of the electric push rod, the spike plate is slidably connected to the inner cavity of the extrusion plate, and the lower end of the spike plate passes through the lower end of the extrusion plate.

5. The disposable plastic product recycling equipment according to claim 3, characterized in that: The bottom of the inner cavity of the storage tank is divided into three parts by a partition plate, one of which is provided with an outlet connected to the cutting assembly, and the lower ends of the remaining two parts are provided with a water filter trough, and the lower ends of the water filter trough are connected to a drain pipe, and the outlet of the drain pipe extends out of the lower end of the storage tank.

6. The disposable plastic product recycling equipment according to claim 1, characterized in that: The slitting assembly also includes a receiving tube, which is connected to the lower end of the outlet part of the storage tank. An electric push rod 2 is fixedly installed on the outer side of the receiving tube. The output end of the electric push rod 2 passes through the side wall of the receiving tube and extends into the inner cavity of the receiving tube, and is fixedly connected to the middle part of the push plate. An isolation plate is fixedly connected to the upper end of the push plate. The end of the isolation plate close to the electric push rod 2 passes through the receiving tube and is slidably connected to the upper end of the inner cavity of the receiving tube, and the heating wire is fixedly installed at the end of the inner cavity of the receiving tube away from the electric push rod 2.

7. The disposable plastic product recycling equipment according to claim 6, characterized in that: The slitting assembly also includes two groups of crushing rollers, which are rotatably connected to the bottom of the inner cavity of the receiving tube. Both ends of the two groups of crushing rollers pass through the receiving tube, wherein gears are fixedly connected to the ends extending out of the front side of the receiving tube, and the outer rings of the two groups of gears are meshed with each other. Motor 2 is fixedly installed on the rear side of the receiving tube, and the output shaft of motor 2 is fixedly connected to the rear end of the crushing roller away from electric push rod 2.

8. The disposable plastic product recycling equipment according to claim 7, characterized in that: The conveying assembly also includes a conveying pipe, which is connected to the lower end of the receiving tube, and both the first and second auger are rotatably connected to the inner cavity of the conveying pipe. An extrusion head is provided at the end of the conveying pipe away from the first auger, and an end of the second auger close to the extrusion head penetrates and extends out of the extrusion head and is rotatably connected to the middle part of the extrusion head. A groove is provided at the end of the second auger extending out of the extrusion head, and a cutting knife is fixedly connected in the groove, and a side of the cutting knife close to the extrusion head is in contact with the outer surface of the extrusion head.

9. The disposable plastic product recycling equipment according to claim 8, characterized in that: The sub-control component also includes two groups of drive shafts, which are respectively fixedly connected to the middle outer ring of the connecting rod and one end close to the auger two, and the two groups of drive shafts are respectively movably sleeved in the inner cavities of the auger one and the auger two, and rollers are hinged on the upper and lower sides of the connecting rod close to the motor three end, and a moving ring is provided on the outer side of the conveying pipe close to the motor three side, the outer ring of the roller is rollingly connected to the inner cavity of the moving ring, and the part of the connecting rod connected to the roller is slidably connected to the inner cavity of the moving ring, the conveying pipe is fixedly connected to the limit rod below the end close to the motor three, and the middle part of the moving ring is slidably connected to the outer ring of the limit rod, and the lower end of the conveying pipe is fixedly installed with an electric push rod three, and the output end of the electric push rod three is fixedly connected to the lower end of the moving ring.

10. The disposable plastic product recycling equipment according to claim 9, characterized in that: The heat circulation component also includes an electric heating plate, which is installed in the inner cavity of the delivery pipe, and a heat conducting pipe is fixedly connected to the inner cavity of the delivery pipe at a position outside the electric heating plate, the upper inlet of the heat conducting pipe extends out of the delivery pipe, and the outlet of the heat conducting pipe is connected to a preheating pipe, which is fixedly connected to the other end of the delivery pipe, and the outlet of the preheating pipe extends out of the delivery pipe, a fan is fixedly installed in the middle of the rear side of the receiving pipe, and a heat exchange pipe is fixedly connected at a position between the fan and the receiving pipe, the lower end of the heat exchange pipe is connected to the outlet of the preheating pipe, and the upper end of the heat exchange pipe is connected to a water pump, which is fixedly installed on the rear side of the receiving pipe, an air inlet is opened in the middle of the rear side of the receiving pipe, and a filter is fixedly connected in the air inlet, the outlet of the fan faces the filter, and the lower end of the water pump is connected to the inlet of the heat conducting pipe.

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