A plastic recycling device and a plastic sorting method

Abstract

The present invention relates to the technical field of recycling plastics or other components of waste materials containing plastics, and discloses a plastic recycling and processing device and a processing method for plastic sorting. The crushed plastic is blown onto a screening plate by a fan, and the screening plate rotates so that small plastic pieces such as plastic bags are attached to the screening plate due to the effect of wind flow, and are moved out of the machine body as the screening plate rotates, so that the small plastic pieces are removed from the screening plate after being moved out of the machine body, and the plastic bottles and other debris are directly discharged from the bottom of the machine body because they cannot be attached to the screening plate after hitting the screening plate, so that the plastic bottles and other debris are discharged from the bottom of the machine body, so that the plastic bags can be attached to hook-like objects after the wind exerts force on the plastic bags, and the plastic bottles and plastic bags are effectively screened, so that the plastic bags are prevented from being attached to the plastic bottles and being screened to the same side together, thereby improving the quality of plastic screening by the device, improving the quality of device processing, and improving the stability of device operation.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling plastics or other components of waste materials containing plastics, and in particular to a plastic recycling processing device and a processing method for plastic sorting. Background Art

[0002] As the consumption of plastic products increases, the amount of waste plastics also increases. In the process of recycling waste plastics, plastic sorting is an important basis.

[0003] In the existing plastic recycling and processing devices, such as Chinese patent application CN109795053A, when the material passes through the first inclined pipe and the second inclined pipe, it will roll, so that the low-density impurities can be sucked away by the nearest extraction system, and then separated from the plastic bottle fragments in the first step. When the material rolls to the connection between the first inclined pipe or the second inclined pipe, it will fall freely. The rectangular suction holes above the connection can also suck away the low-density impurities there, and pass through the suction pipe and the suction main pipe in turn, and finally be discharged from the air outlet of the fan and collected. Since the density of plastic bottle pieces is higher than that of label paper, the plastic bottle fragments are less affected by the wind force generated by the fan and will not affect their normal falling, so the plastic bottle fragments can fall normally to the bottom. The material outlet is used for discharge, thereby realizing the separation of plastic bottle fragments and label paper fragments; at the same time, by adopting a rectangular shape with a cross-sectional length greater than twice the width of the inclined pipe, more materials can be allowed to enter from the top and be screened, thereby greatly improving the production efficiency. Since the pipe becomes wider, it is impossible to use the fan in the prior art to suck at the top. Therefore, the air intake port of the fan is connected to a suction main pipe in the present invention, and the suction main pipe is connected to the corners of the folded line material falling pipe through a plurality of suction pipes, so that the label paper fragments and the plastic bottle fragments can be separated at the first time when the material falls, thereby achieving a good separation effect. At the same time, the present invention adopts the suction main pipe to be connected with a plurality of extraction systems, so that the extraction system at the bottom of the material falling pipe can also obtain a suitable suction force, thereby improving the screening effect.

[0004] However, there are still the following problems: in the screening of plastic bags and plastic bottles, the use of wind separation is prone to plastic bags covering the plastic bottles, resulting in the inability to stably screen the plastic bags and plastic bottles, resulting in reduced processing quality of the device and low stability in the operation of the device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a plastic recycling and processing device and a processing method for plastic sorting, which has the advantages of using wind to apply force to the plastic bags and then attaching the plastic bags to a hook-like object, effectively screening plastic bottles and plastic bags, avoiding plastic bags adhering to the plastic bottles and being screened to the same side, improving the quality of plastic screening by the device, improving the quality of the device processing, and improving the stability of the device operation, etc., and solves the problem that in the screening of plastic bags and plastic bottles, the use of wind separation easily produces plastic bags covering the plastic bottles, resulting in the inability to stably screen the plastic bags and the plastic bottles, resulting in reduced processing quality of the device and low stability of the device operation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic recycling and processing device, comprising a machine body, a crushing mechanism arranged on the machine body, and a screening mechanism arranged on the machine body, the crushing mechanism comprising a crushing roller, a partition plate, and a fan, the crushing roller is arranged at the top of the machine body, the crushing roller crushes the plastic, the partition plate is fixedly installed in the machine body, the partition plate is located below the crushing roller, the size of the partition plate is adapted to the internal cross-sectional area of ​​the machine body, a through opening is opened on one side of the partition plate, the through opening of the partition plate connects the upper and lower sides of the partition plate in the machine body, the fan is fixedly installed on the machine body, the air outlet of the fan is connected to the inside of the machine body, and the fan is located between the crushing roller and the partition plate;

[0007] The screening mechanism includes a screening plate, which is rotatably engaged on the side wall of the machine body, and is a five-blade structure. The screening plate passes through the side wall of the screening plate, and is located between the partition plate and the crushing roller. The screening plate and the fan are located at the same height, and the screening plate is adjacent to the opening of the partition plate.

[0008] Preferably, the crushing mechanism also includes gears, and the crushing roller includes two roller structures. The crushing rollers are symmetrically distributed on both sides of the top of the body, and the crushing rollers on both sides are meshed with each other. The size of the overall crushing roller is adapted to the internal cross-sectional area of ​​the body. Two gears are rotatably matched on the body, and each gear is respectively connected to the power of each crushing roller, and the two gears are meshed. A first servo motor is fixedly installed on the body, and the first servo motor is connected to the power of one gear. The first servo motor drives the crushing rollers to rotate relative to each other from top to bottom. A feeding funnel is fixedly installed on the top of the body, and the feeding funnel is located directly above the crushing roller, and the feeding funnel is communicated with the body.

[0009] Preferably, a guide hopper is fixedly installed in the machine body, the guide hopper is located directly below the crushing roller, the size of the top end of the guide hopper is adapted to the internal cross-sectional area of ​​the machine body, the bottom end of the guide hopper is located above the other side of the partition plate, an inclined guide plate is fixedly installed in the machine body, the inclined guide plate is located directly below the bottom end of the guide hopper, the size of the inclined guide plate is larger than the size of the open end of the bottom end of the guide hopper, and the inclined guide plate is inclined from the side wall of the machine body toward the machine body.

[0010] Preferably, the inclined guide plate is located above the other side of the partition plate, the opening of the partition plate is located on one side of the body, the partition plate is inclined from the other side of the body to one side of the body, and the fan is located between the partition plate and the inclined guide plate.

[0011] Preferably, a filter is fixedly mounted on the body, the filter is sleeved on the air inlet of the body, the filter is used to filter the air drawn in by the fan, a side shell is fixedly mounted on one side of the body, a top end of one side of the side shell is connected to the interior of the body, part of the screen plate is located in the side shell, the other part of the screen plate is located in the body, the opening of the partition plate is located below one side of the screen plate, and the bottom end of the connecting part of the side shell is at the same height as the opening of the partition plate.

[0012] Preferably, the screening mechanism also includes air holes, and each leaf of the five-leaf structure of the screening plate is provided with a plurality of the air holes, and the air holes are evenly distributed. A plurality of hooks are fixedly installed on one side of each leaf of the five-leaf structure of the screening plate, and the screening plate rotates in one direction, and the hooks are arranged in front of the rotation direction of each leaf of the five-leaf structure of the screening plate. A second servo motor is fixedly installed on the side shell, and a coupling is fixedly installed on the shaft of the second servo motor, and the coupling passes through the side wall of the side shell, and the coupling is dynamically connected to the screening plate.

[0013] Preferably, a feed chute is fixedly installed at the bottom end of the machine body, the bottom end of the machine body is an open end, the feed chute is inclined, the top of the feed chute is connected to the bottom end of the machine body, a screw is rotatably fitted inside the feed chute, the size of the screw is adapted to the inside of the feed chute, a third servo motor is fixedly installed on the feed chute, and the third servo motor is dynamically connected to the screw.

[0014] Preferably, turntables are provided on both sides of the machine body, and the turntables rotate with the ground. A plurality of placement slots are provided on the turntable, and the placement slots of the turntable are evenly distributed in a circular shape. The rotation trajectory of the turntable on one side covers directly below the side shell, and the rotation trajectory of the turntable on the other side covers directly below the bottom end of the discharge chute. Storage barrels are provided in the placement slots of the turntable, and the storage barrels are used to temporarily store the screened plastics.

[0015] Preferably, a stepper motor is provided next to the turntable, sprockets are fixedly mounted on the shafts of the stepper motor and the turntable, chains are respectively tensioned on the sprockets on the stepper motor on each side and the sprockets on the turntable on each side, a material guide trough is fixedly mounted on the machine body, the material guide trough is located directly below the side shell, and the material guide trough is used to guide the screened plastic bags into the storage barrel.

[0016] A processing method for plastic sorting uses the above-mentioned plastic recycling processing device.

[0017] Compared with the prior art, the present invention provides a plastic recycling and processing device, which has the following beneficial effects:

[0018] 1. The plastic recycling and processing device crushes the plastic into small pieces by a crushing roller, and the crushed plastic falls onto the partition plate. The fan blows air onto the partition plate to blow the crushed plastic to the screening plate. The screening plate rotates, so that small plastic pieces such as plastic bags are attached to the screening plate due to the effect of wind flow, and are moved out of the machine body as the screening plate rotates, so that the small plastic pieces fall off the screening plate after being moved out of the machine body, and the plastic bottles and other fragments cannot be attached to the screening plate and fall directly after hitting the screening plate, so that the plastic bottles and other fragments are discharged from the bottom of the machine body, so that the plastic is screened and processed, so that the wind can be used to attach the plastic bags to objects such as hooks after applying force to the plastic bags, so that the plastic bottles and plastic bags are effectively screened, and the plastic bags are prevented from being attached to the plastic bottles and being screened to the same side together, thereby improving the quality of plastic screening by the device, improving the quality of device processing, and improving the stability of device operation.

[0019] 2. The plastic recycling and processing device, through the setting of air holes, allows the fan to generate wind flow, so that a large amount of wind flow passes through the screen plate along the upper part of the partition plate, avoiding a large amount of wind flow into the movement path of other plastics, avoiding the wind flow from affecting the movement of plastics in the machine body, and further improving the stability of the device operation.

[0020] 3. The plastic recycling and processing device drives the sprocket to rotate by a stepper motor after the storage barrel is full, and the sprockets are driven by a chain, so that the stepper motor drives the turntable to rotate, and the turntable drives the storage barrel to rotate, so that the turntable can replace the full storage barrel, and the workers can move the storage barrel. Semi-automation is used to greatly improve work efficiency, improve the efficiency of the device, and simplify the tedious process of workers operating the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure distribution of the machine body of the present invention;

[0022] Figure 2 This is a schematic diagram of the crushing mechanism structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structural distribution of the crushing roller of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure distribution of the fan of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the screening mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the structural distribution of the screening plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure distribution of the screw rod of the present invention;

[0028] Figure 8 It is a schematic diagram of the overall structure of the device of the present invention.

[0029] In the figure: 1. body; 2. crushing mechanism; 21. crushing roller; 22. gear; 23. first servo motor; 24. feed hopper; 25. guide hopper; 26. inclined guide plate; 27. partition plate; 28. fan; 29. ​​filter screen; 210. side shell; 3. screening mechanism; 31. screening plate; 32. air hole; 33. hook; 34. second servo motor; 35. coupling; 36. feed chute; 37. screw; 38. third servo motor; 39. turntable; 310. storage barrel; 311. stepping motor; 312. sprocket; 313. chain; 314. guide chute. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a plastic recycling and processing device and a processing method for plastic sorting.

[0032] Example 1

[0033] In a typical implementation of the present application, Figure 1 As shown, a plastic recycling and processing device comprises a machine body 1, a crushing mechanism 2 arranged on the machine body 1, and a screening mechanism 3 arranged on the machine body 1, wherein the crushing mechanism 2 comprises a crushing roller 21, a partition plate 27, and a fan 28, wherein the crushing roller 21 is arranged at the top of the machine body 1, and the crushing roller 21 crushes the plastic, wherein the partition plate 27 is fixedly installed in the machine body 1, and the partition plate 27 is located below the crushing roller 21, and the size of the partition plate 27 is adapted to the internal cross-sectional area of ​​the machine body 1, and an opening is opened on one side of the partition plate 27, and the opening of the partition plate 27 connects the upper and lower sides of the partition plate 27 in the machine body 1, and a fan 28 is fixedly installed on the machine body 1, and the air outlet of the fan 28 is connected to the inside of the machine body 1, and the fan 28 is located between the crushing roller 21 and the partition plate 27;

[0034] The screening mechanism 3 includes a screening plate 31, which is rotatably engaged on the side wall of the machine body 1. The screening plate 31 is a five-leaf structure. The screening plate 31 penetrates the side wall of the screening plate 31. The screening plate 31 is located between the partition plate 27 and the crushing roller 21. The screening plate 31 and the fan 28 are located at the same height, and the screening plate 31 is adjacent to the opening of the partition plate 27.

[0035] When using the present invention:

[0036] Put the plastic into the machine body 1, start the crushing roller 21, and crush the plastic by the crushing roller 21, so that the plastic is broken into small pieces (that is, plastic bottles and the like are broken into fragments, and plastic bags and the like are torn into small plastic pieces), and the broken plastic falls onto the partition plate 27, and start the fan 28, and the fan 28 blows air onto the partition plate 27 to blow the broken plastic to the screening plate 31, and start the screening plate 31, and the screening plate 31 rotates, so that the small plastic pieces such as plastic bags are attached to the screening plate 31 due to the effect of the wind flow, and are moved out of the machine body 1 as the screening plate 31 rotates, so that the small plastic pieces are moved out of the machine body 1 and fall off from the screening plate 31, and the plastic bottles and the like fragments hit the screening plate 31 and fall directly because they cannot be attached to the screening plate 31, so that the plastic bottles and the like fragments are discharged from the bottom end of the machine body 1, so that the plastic is screened;

[0037] The plastic is crushed into small pieces by the crushing roller 21, and the crushed plastic falls onto the partition plate 27. The fan 28 blows air onto the partition plate 27 to blow the crushed plastic to the screening plate 31. The screening plate 31 rotates, so that small plastic pieces such as plastic bags are attached to the screening plate 31 due to the effect of the wind flow, and are moved out of the machine body 1 as the screening plate 31 rotates, so that the small plastic pieces are moved out of the machine body 1 and fall off the screening plate 31, and the plastic bottles and other fragments hit the screening plate 31 and fall directly because they cannot attach to the screening plate 31, so that the plastic bottles and other fragments are discharged from the bottom end of the machine body 1, so that the plastic is screened and processed, so that the wind can be used to attach the plastic bags to objects such as hooks after the force is applied to the plastic bags, so that the plastic bottles and plastic bags are effectively screened, and the plastic bags are prevented from being attached to the plastic bottles and being screened to the same side together, thereby improving the quality of plastic screening by the device, improving the quality of the device processing, and improving the stability of the device operation.

[0038] Example 2

[0039] like Figure 2-4 As shown, the difference from the above embodiment is that the crushing mechanism 2 also includes a gear 22, the crushing roller 21 includes two roller structures, the crushing rollers 21 are symmetrically distributed on both sides of the top of the body 1, the crushing rollers 21 on both sides are meshed, the size of the overall crushing roller 21 is adapted to the internal cross-sectional area of ​​the body 1, and two gears 22 are rotatably matched on the body 1, each gear 22 is respectively connected to each crushing roller 21 by power, the two gears 22 are meshed, a first servo motor 23 is fixedly installed on the body 1, the first servo motor 23 is connected to a gear 22 by power, the first servo motor 23 drives the crushing rollers 21 to rotate relative to each other from top to bottom, and a feeding funnel 24 is fixedly installed on the top of the body 1, the feeding funnel 24 is located directly above the crushing roller 21, and the feeding funnel 24 is connected to the inside of the body 1.

[0040] Furthermore, a guide hopper 25 is fixedly installed in the body 1, and the guide hopper 25 is located directly below the crushing roller 21. The size of the top of the guide hopper 25 is adapted to the internal cross-sectional area of ​​the body 1, and the bottom end of the guide hopper 25 is located above the other side of the partition plate 27. An inclined guide plate 26 is fixedly installed in the body 1, and the inclined guide plate 26 is located directly below the bottom end of the guide hopper 25. The size of the inclined guide plate 26 is larger than the size of the open end of the bottom end of the guide hopper 25, and the inclined guide plate 26 is inclined from the side wall of the body 1 toward the body 1.

[0041] Furthermore, the inclined guide plate 26 is located above the other side of the partition plate 27, the opening of the partition plate 27 is located on one side of the body 1, the partition plate 27 is inclined from the other side of the body 1 to one side of the body 1, and the fan 28 is located between the partition plate 27 and the inclined guide plate 26.

[0042] Furthermore, a filter screen 29 is fixedly installed on the body 1, and the filter screen 29 is mounted on the air inlet of the body 1. The filter screen 29 is used to filter the air drawn in by the fan 28. A side shell 210 is fixedly installed on one side of the body 1, and the top of one side of the side shell 210 is connected to the interior of the body 1. Part of the screen plate 31 is located in the side shell 210, and the other part of the screen plate 31 is located in the body 1. The opening of the partition plate 27 is located below one side of the screen plate 31, and the bottom end of the connecting part of the side shell 210 is at the same height as the opening of the partition plate 27.

[0043] When the crushing process is carried out, the plastic is put into the feed hopper 24, and the plastic falls from the feed hopper 24 onto the crushing roller 21, and the first servo motor 23 is started, and the first servo motor 23 drives the gear 22 to rotate, and the gear 22 drives the crushing roller 21 to rotate, so that the crushing roller 21 crushes the plastic, and the crushed plastic falls into the guide hopper 25, and the guide hopper 25 guides the crushed plastic to the inclined guide plate 26, and the crushed plastic falls from the inclined guide plate 26 onto the partition plate 27.

[0044] Example 3

[0045] like Figure 5-Figure 8 As shown, the difference from the above embodiment is that the screening mechanism 3 also includes air holes 32, and each leaf of the five-leaf structure of the screening plate 31 is provided with a plurality of air holes 32, and the air holes 32 are evenly distributed. A plurality of hooks 33 are fixedly installed on one side of each leaf of the five-leaf structure of the screening plate 31, and the screening plate 31 rotates in one direction. The hooks 33 are arranged in front of the rotation direction of each leaf of the five-leaf structure of the screening plate 31, and a second servo motor 34 is fixedly installed on the side shell 210, and a coupling 35 is fixedly installed on the shaft of the second servo motor 34, and the coupling 35 passes through the side wall of the side shell 210, and the coupling 35 is dynamically connected to the screening plate 31.

[0046] Further, if Figure 6 As shown, the screening plate 31 rotates counterclockwise.

[0047] Furthermore, a feed chute 36 is fixedly installed at the bottom end of the body 1. The bottom end of the body 1 is an open end. The feed chute 36 is inclined. The top of the feed chute 36 is connected to the bottom end of the body 1. A screw 37 is rotatably engaged in the feed chute 36. The size of the screw 37 is adapted to the inside of the feed chute 36. A third servo motor 38 is fixedly installed on the feed chute 36. The third servo motor 38 is powered by the screw 37.

[0048] Furthermore, turntables 39 are provided on both sides of the body 1, and the turntables 39 rotate with the ground. A plurality of placement slots are provided on the turntable 39, and the placement slots of the turntable 39 are evenly distributed in a circular shape. The rotation trajectory of the turntable 39 on one side covers directly below the side shell 210, and the rotation trajectory of the turntable 39 on the other side covers directly below the bottom of the discharge chute 36. Storage barrels 310 are provided in the placement slots of the turntable 39, and the storage barrels 310 are used to temporarily store the screened plastics.

[0049] Furthermore, a stepper motor 311 is provided next to the turntable 39, and a sprocket 312 is fixedly installed on the shaft of the stepper motor 311 and the shaft of the turntable 39, and a chain 313 is respectively tensioned on the sprocket 312 on each side of the stepper motor 311 and the sprocket 312 on each side of the turntable 39, and a material guide trough 314 is fixedly installed on the body 1, and the material guide trough 314 is located directly below the side shell 210, and the material guide trough 314 is used to guide the screened plastic bags into the storage barrel 310.

[0050] When the crushed plastic is screened, the fan 28 is started, and the fan 28 blows the crushed plastic on the partition plate 27. At the same time, the second servo motor 34 is started, and the second servo motor 34 drives the coupling 35 to rotate, and the coupling 35 drives the screening plate 31 to rotate, and the wind blows the crushed plastic to the screening plate 31, and the air holes 32 allow a large amount of wind to pass through the screening plate 31 to prevent a large amount of wind from blowing to other paths. The wind blows small plastic pieces such as plastic bags to attach them to the screening plate 31 and are hooked by the hook 33, while the fragments such as plastic bottles hit the screening plate 31 and fall because they cannot be attached to the screening plate 31, so that the fragments pass through the opening of the partition plate 27, and as the screening plate 31 rotates, the screening plate 31 drives the small plastic pieces to move into the side shell 210. At this time, the small plastic pieces on the screening plate 31 are at the downwind position, and the wind will Small plastic flakes are blown off the screening plate 31, so that the small plastic flakes fall out of the side shell 210 to enter the guide trough 314 and are discharged from the guide trough 314, and then the fragments fall from the body 1 into the discharge trough 36, and the third servo motor 38 is started, and the third servo motor 38 drives the screw 37 to rotate, so that the screw 37 pushes the fragments in the discharge trough 36 to move, so as to discharge the fragments and prevent the fragments from being retained in the discharge trough 36 due to friction and the like, and then the small plastic flakes and the fragments fall into the storage barrel 310 from each side, and the stepper motor 311 is started. After the storage barrel 310 is full, the stepper motor 311 drives the sprocket 312 to rotate, and the chain 313 is used for transmission between the sprockets 312, so that the stepper motor 311 drives the turntable 39 to rotate, and the turntable 39 drives the storage barrel 310 to rotate, so that the turntable 39 replaces the full storage barrel 310.

[0051] The overall working principle of the recycling and processing device:

[0052] Put the plastic into the machine body 1, start the crushing roller 21, and crush the plastic by the crushing roller 21, so that the plastic is broken into small pieces (that is, plastic bottles and the like are broken into fragments, and plastic bags and the like are torn into small plastic pieces), and the broken plastic falls onto the partition plate 27, and start the fan 28, and the fan 28 blows air onto the partition plate 27 to blow the broken plastic to the screening plate 31, and start the screening plate 31, and the screening plate 31 rotates, so that the small plastic pieces such as plastic bags are attached to the screening plate 31 due to the effect of the wind flow, and are moved out of the machine body 1 as the screening plate 31 rotates, so that the small plastic pieces are moved out of the machine body 1 and fall off from the screening plate 31, and the plastic bottles and the like fragments hit the screening plate 31 and fall directly because they cannot be attached to the screening plate 31, so that the plastic bottles and the like fragments are discharged from the bottom end of the machine body 1, so that the plastic is screened;

[0053] When the crushing process is performed, the plastic is put into the feeding hopper 24, and the plastic falls from the feeding hopper 24 onto the crushing roller 21, and the first servo motor 23 is started, and the first servo motor 23 drives the gear 22 to rotate, and the gear 22 drives the crushing roller 21 to rotate, so that the crushing roller 21 crushes the plastic, and the crushed plastic falls into the guide hopper 25, and the guide hopper 25 guides the crushed plastic to the inclined guide plate 26, and the crushed plastic falls from the inclined guide plate 26 onto the partition plate 27;

[0054] When screening the crushed plastic, start the fan 28, which blows the crushed plastic on the partition plate 27, and at the same time start the second servo motor 34, which drives the coupling 35 to rotate, and the coupling 35 drives the screening plate 31 to rotate, and the wind blows the crushed plastic to the screening plate 31, and the air holes 32 allow a large amount of wind to pass through the screening plate 31 to prevent a large amount of wind from blowing to other paths. The wind blows small plastic pieces such as plastic bags to attach them to the screening plate 31 and are hooked by the hook 33, while the fragments of plastic bottles and the like that hit the screening plate 31 and fall because they cannot be attached to the screening plate 31, so that the fragments pass through the opening of the partition plate 27, and as the screening plate 31 rotates, the screening plate 31 drives the small plastic pieces to move into the side shell 210, and at this time the small plastic pieces on the screening plate 31 are at the lower wind position, and the wind blows the small plastic pieces The material pieces are blown down from the screening plate 31, so that the small plastic pieces fall out of the side shell 210 to enter the guide trough 314 and are discharged from the guide trough 314, and then the fragments fall from the body 1 into the discharge trough 36, and the third servo motor 38 is started, and the third servo motor 38 drives the screw 37 to rotate, so that the screw 37 pushes the fragments in the discharge trough 36 to move, so as to discharge the fragments and prevent the fragments from being retained in the discharge trough 36 due to friction and other reasons, and then the small plastic pieces and the fragments fall into the storage barrel 310 from each side, and the stepper motor 311 is started. After the storage barrel 310 is full, the stepper motor 311 drives the sprocket 312 to rotate, and the chain 313 is used for transmission between the sprockets 312, so that the stepper motor 311 drives the turntable 39 to rotate, and the turntable 39 drives the storage barrel 310 to rotate, so that the turntable 39 replaces the full storage barrel 310.

[0055] A processing method for plastic sorting uses the above-mentioned plastic recycling processing device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic recycling device, comprising a body, a crushing mechanism arranged on the body, and a screening mechanism arranged on the body, characterized in that: The crushing mechanism comprises a crushing roller, a partition plate, and a fan. The crushing roller is arranged at the top of the machine body, and the crushing roller crushes the plastic. The partition plate is fixedly installed in the machine body, and the partition plate is located below the crushing roller. The size of the partition plate is adapted to the cross-sectional area inside the machine body. A through hole is opened on one side of the partition plate, and the through hole of the partition plate connects the upper and lower sides of the partition plate inside the machine body. The fan is fixedly installed on the machine body, and the air outlet of the fan is connected to the inside of the machine body. The fan is located between the crushing roller and the partition plate. The screening mechanism comprises a screening plate, the screening plate is rotatably fitted on the side wall of the machine body, the screening plate is a five-leaf structure, the screening plate passes through the side wall of the screening plate, the screening plate is located between the partition plate and the crushing roller, the screening plate and the fan are located at the same height, and the screening plate is adjacent to the opening of the partition plate; A guide hopper is fixedly installed in the machine body, the guide hopper is located directly below the crushing roller, the size of the top of the guide hopper is adapted to the internal cross-sectional area of ​​the machine body, the bottom of the guide hopper is located above the other side of the partition plate, an inclined guide plate is fixedly installed in the machine body, the inclined guide plate is located directly below the bottom of the guide hopper, the size of the inclined guide plate is larger than the size of the open end of the bottom of the guide hopper, and the inclined guide plate is inclined from the side wall of the machine body to the machine body; The inclined guide plate is located above the other side of the partition plate, the opening of the partition plate is located on one side of the machine body, the partition plate is inclined from the other side of the machine body to the one side of the machine body, and the fan is located between the partition plate and the inclined guide plate; A side shell is fixedly installed on one side of the machine body, a top end of one side of the side shell is connected to the inside of the machine body, a part of the screen plate is located in the side shell, another part of the screen plate is located in the machine body, the opening of the partition plate is located below one side of the screen plate, and the bottom end of the connecting part of the side shell is at the same height as the opening of the partition plate; The screening mechanism also includes air holes, and each leaf of the five-leaf structure of the screening plate is provided with a plurality of the air holes, and the air holes are evenly distributed. A plurality of hooks are fixedly installed on one side of each leaf of the five-leaf structure of the screening plate, and the screening plate rotates in one direction, and the hooks are arranged in front of the rotation direction of each leaf of the five-leaf structure of the screening plate. A second servo motor is fixedly installed on the side shell, and a coupling is fixedly installed on the shaft of the second servo motor, and the coupling passes through the side wall of the side shell, and the coupling is dynamically connected to the screening plate.

2. A plastic recycling device according to claim 1, characterized in that: The crushing mechanism also includes gears, and the crushing roller includes two roller structures. The crushing rollers are symmetrically distributed on both sides of the top of the body, and the crushing rollers on both sides are meshed with each other. The size of the overall crushing roller is adapted to the internal cross-sectional area of ​​the body. There are two gears rotating on the body, and each gear is respectively connected to the power of each crushing roller. The two gears are meshed. A first servo motor is fixedly installed on the body, and the first servo motor is connected to the power of one gear. The first servo motor drives the crushing rollers to rotate relative to each other from top to bottom. A feeding funnel is fixedly installed on the top of the body, and the feeding funnel is located directly above the crushing roller, and the feeding funnel is connected to the body.

3. A plastic recycling device according to claim 2, characterized in that: A filter is fixedly mounted on the machine body, the filter is sleeved on the air inlet of the machine body, and is used to filter the air drawn in by the fan.

4. A plastic recycling device according to claim 3, characterized in that: A material discharge chute is fixedly installed at the bottom end of the machine body, the bottom end of the machine body is an open end, the material discharge chute is inclined, the top end of the material discharge chute is connected to the bottom end of the machine body, a screw is rotatably fitted in the material discharge chute, the size of the screw is adapted to the inside of the material discharge chute, a third servo motor is fixedly installed on the material discharge chute, and the third servo motor is dynamically connected to the screw.

5. A plastic recycling device according to claim 4, characterized in that: Turntables are provided on both sides of the machine body, and the turntables rotate with the ground. A plurality of placement slots are provided on the turntable, and the placement slots of the turntable are evenly distributed in a circular shape. The rotation track of the turntable on one side covers directly below the side shell, and the rotation track of the turntable on the other side covers directly below the bottom end of the discharge chute. Storage barrels are provided in the placement slots of the turntable, and the storage barrels are used to temporarily store the screened plastics.

6. A plastic recycling device according to claim 5, characterized in that: A stepper motor is arranged beside the turntable, and sprockets are fixedly mounted on the shafts of the stepper motor and the turntable, and chains are respectively tensioned on the sprockets on the stepper motors on each side and the sprockets on the turntable on each side, and a material guide trough is fixedly mounted on the machine body, and the material guide trough is located directly below the side shell, and the material guide trough is used to guide the screened plastic bags into the storage barrel.

7. A processing method for plastic sorting, characterized in that: The plastic recycling and processing device described in any one of claims 1 to 6 is used.

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