Recycling device for waste plastic bottles

Abstract

The invention belongs to the technical field of plastic bottle recovery and treatment, and particularly relates to a waste plastic bottle recovery and treatment device which comprises a screening box, a smashing box is installed at the top of the screening box and used for smashing plastic bottles conveyed into the screening box, and a guide hopper is installed at the top of the smashing box. The guide hopper is used for guiding the plastic bottles; a crushing plate in the feeding box and a rotating blade and a fixed blade in the crushing box are arranged. The crushing plate can be driven by the driving part to preliminarily crush the plastic bottles entering the feeding box, the sizes of the plastic bottles entering the subsequent crushing link are controlled, and the situation that the crushing efficiency is affected by the too large plastic bottles is avoided; and two groups of rotating blades are arranged in the crushing box in a staggered manner, rotate under the driving of a driving motor and are matched with the fixed blades, so that the crushed plastic bottles can be fully and finely crushed, the plastic bottles are ensured to be crushed into smaller and uniform fragments, and the plastic bottle recycling treatment quality is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of plastic bottle recycling technology, and more particularly to a recycling device for waste plastic bottles. Background Technology

[0002] With the widespread use of plastic products, the number of discarded plastic bottles is increasing daily, putting serious pressure on the environment. Therefore, the efficient recycling and reuse of waste plastic bottles has become a crucial issue urgently needing to be addressed in today's society. However, existing waste plastic bottle recycling and processing equipment suffers from numerous problems in practical applications, severely impacting the effectiveness and efficiency of the recycling process.

[0003] In the recycling and processing of waste plastic bottles, crushing and pulverizing are crucial steps, directly determining the quality of subsequent processing. Currently, some recycling and processing devices have relatively simple crushing structures and lack effective preliminary crushing mechanisms. When large quantities of waste plastic bottles directly enter the pulverizing stage, due to the varying sizes of the bottles, larger bottles are prone to getting stuck in the pulverizing chamber, leading to frequent equipment malfunctions. This not only affects production progress but also increases maintenance costs.

[0004] Meanwhile, most existing crushing equipment uses a single crushing method, and the layout and movement of the crushing blades are not reasonable enough to fully and finely crush plastic bottles. This results in uneven particle size of the crushed fragments, which may contain larger pieces of plastic. These substandard fragments will affect subsequent screening and reprocessing, reduce the quality of recycled plastics, and make it difficult to meet market requirements for recycled plastics.

[0005] Screening is a crucial step in the recycling process to ensure the quality of the finished product. Its purpose is to classify the pulverized fragments according to particle size requirements, separating those that meet the standards from those that do not. However, existing recycling equipment has significant shortcomings in the screening stage. Some devices have simple screening structures and low screening efficiency, failing to accurately separate fragments of different sizes. This results in a large number of unqualified fragments mixed with qualified fragments, or unqualified fragments containing some qualified fragments, reducing the yield of the finished product.

[0006] Furthermore, existing equipment largely lacks effective secondary processing mechanisms for the non-compliant fragments separated during screening. These fragments are typically discarded directly, resulting in resource waste. In fact, these fragments can still become qualified recycled plastic raw materials after being further crushed. However, the lack of corresponding secondary processing equipment and processes prevents this resource from being fully utilized, further reducing the economic and environmental benefits of recycling.

[0007] Existing waste plastic bottle recycling and processing equipment has many unreasonable aspects in terms of structural design and protective measures, affecting the stability and safety of the equipment. For example, in the feeding stage, some equipment does not have effective material limiting and anti-falling structures, resulting in too many or too few plastic bottles entering the crushing zone, affecting the crushing effect. At the same time, plastic bottles are prone to falling during the feeding process, causing material waste and production environment disorder.

[0008] In the crushing process, some transmission components lack necessary protective measures, leaving gears and other transmission parts exposed and susceptible to dust and debris. This can lead to accelerated gear wear, decreased transmission accuracy, and even equipment malfunction. Furthermore, operators are easily exposed to these transmission components during equipment operation, posing significant safety hazards.

[0009] In the screening process, some devices lack effective filtration and ash removal structures. Impurities mixed in with the crushed fragments cannot be separated and discharged in time. These impurities gradually accumulate inside the device, affecting the screening effect and normal operation of the device. They also increase the difficulty and cost of equipment maintenance. Summary of the Invention

[0010] To address the aforementioned problems, this invention proposes a recycling and processing device for waste plastic bottles, which more precisely solves the problems mentioned in the background section.

[0011] This invention is achieved through the following technical solution: This invention proposes a waste plastic bottle recycling and processing device, including a screening box, a crushing box installed on the top of the screening box for crushing the plastic bottles fed into the screening box, a guide hopper installed on the top of the crushing box for guiding the plastic bottles, a feeding box installed on the top side of the guide hopper for temporarily storing the plastic bottles, a feeding port opened on the side of the feeding box for feeding the plastic bottles, a movable crushing plate installed inside the feeding box for crushing the plastic bottles entering the feeding box, a drive unit installed on the back of the feeding box for moving the crushing plate, a baffle plate installed on the inner wall of the screening box for shielding the crushed plastic bottles, and a screening section installed at the bottom of the crushing box for screening the crushed plastic bottles.

[0012] Preferably, the drive unit includes a mounting plate, a servo motor, a threaded rod, and a threaded seat. The mounting plate is mounted on the back of the feed box, the servo motor is mounted on the side of the mounting plate, the output end of the servo motor is mounted on the threaded rod, the surface of the threaded rod is threadedly connected to the threaded seat, a baffle plate is mounted on the side of the crushing plate, the baffle plate extends to the outside of the feed box, and is used to prevent plastic bottles from falling to the other side of the crushing plate when the crushing plate moves. The surface of the threaded seat is fixedly connected to the baffle plate and is used to drive the movement of the crushing plate.

[0013] Preferably, a limiting plate is installed on the inner wall of the feeding box, the limiting plate is located on top of the crushing plate, and a guide port is opened at the bottom of the feeding box. A screen plate is installed on the inner wall of the guide port to prevent the plastic bottles to be crushed from falling.

[0014] Preferably, the crushing box includes a box body installed on top of the screening box and two sets of rotating blades disposed inside the box body for crushing the plastic bottles. The two rotating blades are arranged alternately. A rotatable rotating rod is installed on the inner wall of the box body. The rotating blades are mounted on the surface of the rotating rod and are used to drive the rotating blades to rotate when the rotating rod rotates. Gears are installed at the ends of the rotating rods. The gears are meshed and connected to drive the other rotating rod to rotate when one rotating rod rotates.

[0015] Preferably, the crushing box further includes a drive motor and fixed blades. The drive motor is installed on one side of the box and its output end is connected to one of the rotating rods to drive the rotating rods to rotate. The fixed blades are installed on the inner wall of the box and are staggered with the rotating blades. A protective cover is installed on the other side of the box and is installed at the gear to protect the gear.

[0016] Preferably, the screening unit includes a screen cylinder, a mounting frame, and a rotating motor. The screen cylinder is installed at the bottom of the baffle plate and is rotatably connected to it via a bearing. A material leakage hole is provided at the baffle plate. The screen cylinder is located below the material leakage hole and communicates with it. The mounting frame is installed on the inner wall of the screening box. The rotating motor is installed at the bottom of the mounting frame. The output end of the rotating motor is fixedly connected to the screen cylinder and is used to drive the screen cylinder to rotate.

[0017] Preferably, the inner wall of the screening box is provided with a filter plate at the bottom of the screening section. The filter plate is used to filter the crushed plastic bottles and impurities. The surface of the screening box is equipped with a material receiving door and an ash discharge pipe. The material receiving door is used to open and remove the crushed plastic bottles. The ash discharge pipe is used to discharge impurities. The surface of the screening box is equipped with a support frame, which is used to support the feeding box.

[0018] Preferably, a material extraction section is installed on one side of the screening box, which is used to extract fragments of larger broken plastic bottles into the crushing box for re-crushing.

[0019] Preferably, the material extraction unit includes a material extraction pump installed on one side of the screening box, a material extraction pipe installed on the side of the material extraction pump, the end of the material extraction pipe being disposed inside the screen cylinder, and a discharge pipe installed on the top of the material extraction unit, the discharge pipe being inserted into the guide hopper.

[0020] Compared with the prior art, the present invention provides a recycling and processing device for waste plastic bottles, which has the following beneficial effects: This waste plastic bottle recycling and processing device features a crushing plate inside the feeding hopper and rotating and fixed blades inside the crushing chamber. Driven by a motor, the crushing plate initially crushes the plastic bottles entering the feeding hopper, controlling the size of the bottles entering the subsequent crushing stage to prevent excessively large bottles from affecting crushing efficiency. Inside the crushing chamber, two sets of staggered rotating blades, driven by a motor, work in conjunction with the fixed blades to thoroughly and meticulously crush the broken plastic bottles, ensuring they are pulverized into small, uniform fragments, effectively improving the quality of plastic bottle recycling and processing.

[0021] This waste plastic bottle recycling device uses a rotating motor to drive a screen cylinder, which sieves the crushed fragments. Fragments that meet the particle size requirements fall through the screen cylinder, while those that do not remain inside. Simultaneously, the device is equipped with a material extraction unit that draws the unqualified fragments from the screen cylinder into a crushing chamber for re-crushing, forming a complete recycling cycle. This design avoids the waste of unqualified fragments, ensuring that all the crushed plastic bottle fragments after final processing meet the standards, thus improving the efficiency and yield of the recycled plastic bottles.

[0022] This waste plastic bottle recycling and processing device uses a limiting plate and a sieve plate inside the feeding box. The limiting plate controls the number of plastic bottles entering the crushing area of ​​the crushing plate, and the sieve plate prevents plastic bottles from falling from the feed inlet before crushing, ensuring the normal operation of the crushing process. A protective cover is installed on one side of the crushing box to protect the gears and prevent dust and other contaminants from affecting gear transmission, while also ensuring the safety of the operators. A filter plate is installed inside the screening box to further filter the crushed plastic bottles and impurities. Impurities are discharged through the ash discharge pipe, ensuring the purity of the processed plastic bottles. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a waste plastic bottle recycling and processing device proposed in this invention; Figure 2 This is a cross-sectional view of the screening box of a waste plastic bottle recycling and processing device proposed in this invention. Figure 3 This is a schematic diagram of the feeding box of a waste plastic bottle recycling and processing device proposed in this invention; Figure 4 This is a cross-sectional view of the feed box of a waste plastic bottle recycling and processing device proposed in this invention; Figure 5 This is a schematic diagram of the crushing box structure of a waste plastic bottle recycling and processing device proposed in this invention; Figure 6 This is a schematic diagram of the screening section of a waste plastic bottle recycling and processing device proposed in this invention.

[0024] In the diagram: 1. Screening box; 11. Baffle plate; 12. Filter plate; 13. Feed gate; 14. Ash discharge pipe; 15. Support frame; 2. Feeding box; 21. Feed inlet; 22. Guide inlet; 23. Limiting plate; 24. Screen plate; 3. Crushing box; 31. Box body; 32. Rotating rod; 33. Rotating blade; 34. Gear; 35. Drive motor; 36. Fixed blade; 37. Protective cover; 4. Guide hopper; 5. Crushing plate; 51. Baffle plate; 6. Drive unit; 61. Mounting plate; 62. Servo motor; 63. Threaded rod; 64. Threaded seat; 7. Extraction unit; 71. Extraction pump; 72. Extraction pipe; 73. Discharge pipe; 8. Screening unit; 81. Screen cylinder; 82. Mounting frame; 83. Rotating motor. Detailed Implementation

[0025] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0026] Example

[0027] like Figures 1-6 As shown, an embodiment of the waste plastic bottle recycling and processing device of the present invention includes a screening box 1, a crushing box 3 installed on the top of the screening box 1 for crushing the plastic bottles fed into the screening box 1. A guide hopper 4 is installed on the top of the crushing box 3 for guiding the plastic bottles into the crushing box 3. A feeding box 2 is installed on the top of one side of the guide hopper 4 for temporarily storing the plastic bottles. A feeding port 21 is opened on the side of the feeding box 2 for feeding plastic bottles. A movable crushing plate 5 is installed inside the feeding box 2 for crushing the plastic bottles entering the feeding box 2. A drive unit 6 is installed on the back of the feeding box 2 for driving the crushing plate 5 to move. A baffle plate 11 is installed on the inner wall of the screening box 1 for blocking the crushed plastic bottles from the crushing box 3. A screening unit 8 is installed at the bottom of the crushing box 3 for screening the crushed plastic bottles. Through the above structure, the preliminary processing flow of plastic bottles, including temporary storage, preliminary crushing, further crushing, and screening, is realized.

[0028] In this invention, the mounting plate 61 of the drive unit 6 is installed on the back of the feed box 2. A servo motor 62 is installed on the side of the mounting plate 61, and a threaded rod 63 is installed at the output end of the servo motor 62. A threaded seat 64 is threadedly connected to the surface of the threaded rod 63. A baffle plate 51 is installed on the side of the crushing plate 5, extending through to the outside of the feed box 2. The surface of the threaded seat 64 is then connected to the baffle plate 51. When the servo motor 62 starts, it drives the threaded rod 63 to rotate, and the threaded seat 64 moves on the threaded rod 63. This, in turn, drives the crushing plate 5 to move through the baffle plate 51, thereby realizing the crushing operation of the plastic bottles in the feed box 2. When the crushing plate 5 moves, it prevents the plastic bottles from falling to the other side of the crushing plate 5. That is, the baffle plate 51 is used to close the gap between the crushing plate 5 and the side wall of the feed box 2 when the crushing plate 5 moves, so as to prevent the plastic bottles from falling to the other side of the crushing plate 5.

[0029] Preferably, the side wall of the feed box 2 is provided with an elongated hole through which the baffle plate 51 passes and slides. The edge of the elongated hole is provided with a sealing brush or elastic sealing element. The sealing brush or elastic sealing element is in contact with the surface of the baffle plate 51 to seal the gap between the elongated hole and the baffle plate 51 when the crushing plate 5 moves, so as to prevent material from entering the gap.

[0030] In this invention, a limiting plate 23 is installed on the inner wall of the feed box 2, positioned at the top of the crushing plate 5. A guide port 22 is opened at the bottom of the feed box 2, and a screen plate 24 is installed on the inner wall of the guide port 22. The limiting plate 23 controls the number of plastic bottles entering the crushing area of ​​the crushing plate 5, and the screen plate 24 prevents plastic bottles from falling from the guide port 22 before crushing, ensuring the normal operation of the crushing process.

[0031] In this invention, the crushing box 3 has its body 31 mounted on top of the screening box 1. Two sets of rotating blades 33 are arranged inside the body 31, with the two sets of blades staggered. A rotatable rotating rod 32 is installed on the inner wall of the body 31, and the rotating blades 33 are mounted on the surface of the rotating rod 32. Gears 34 are installed at the ends of the rotating rods 32, allowing the two gears 34 to mesh. When one rotating rod 32 rotates, the meshing of the gears 34 drives the other rotating rod 32 to rotate, which in turn drives the two sets of rotating blades 33 to rotate, thus crushing the plastic bottles that have entered the body 31.

[0032] In this invention, a drive motor 35 is installed on one side of the housing 31, and the output end of the drive motor 35 is connected to one of the rotating rods 32. A fixed blade 36 is installed on the inner wall of the housing 31, with the fixed blade 36 and rotating blade 33 arranged alternately. A protective cover 37 is installed on the other side of the housing 31, and is mounted on the gear 34. When the drive motor 35 starts, it drives the connected rotating rod 32 to rotate, which in turn drives the rotating blade 33 to rotate, cooperating with the fixed blade 36 to better crush the plastic bottle. The protective cover 37 protects the gear 34, preventing dust and other contaminants from entering and affecting the gear transmission, while also ensuring operator safety.

[0033] In this invention, the sieve cylinder 81 of the screening section 8 is installed at the bottom of the baffle plate 11 and is rotatably connected to the baffle plate 11 via a bearing. A material leakage hole is provided at the baffle plate 11, so that the sieve cylinder 81 is positioned below and communicates with the material leakage hole. A mounting frame 82 is installed on the inner wall of the screening box 1, and a rotary motor 83 is installed at the bottom of the mounting frame 82. The output end of the rotary motor 83 is connected to the sieve cylinder 81. The crushed plastic bottles enter the sieve cylinder 81 through the material leakage hole. The rotary motor 83 is started, driving the sieve cylinder 81 to rotate, thus screening the crushed plastic bottles. Those that meet the particle size requirements fall through the sieve cylinder 81, while those that do not meet the requirements remain inside the sieve cylinder 81.

[0034] In this invention, a filter plate 12 is installed on the inner wall of the screening box 1 at the bottom of the screening section 8. A material receiving door 13 and an ash discharge pipe 14 are installed on the surface of the screening box 1. A support frame 15 is installed on the surface of the screening box 1, and the feeding box 2 is placed on the support frame 15 for support. The filter plate 12 can further filter the crushed plastic bottles and impurities. The impurities are discharged through the ash discharge pipe 14, and the processed plastic bottles can be taken out by opening the material receiving door 13. The support frame 15 provides stable support for the feeding box 2.

[0035] In this invention, a material extraction unit 7 is installed on one side of the screening box 1. The material extraction unit 7 is used to extract the plastic bottle fragments trapped in the screen cylinder 81 to the crushing box 3 for re-crushing, thereby realizing the secondary processing of the fragments after the unqualified plastic bottles are crushed, and improving the quality and efficiency of plastic bottle recycling.

[0036] In this invention, the pump 71 of the extraction section 7 is installed on one side of the screening box 1, and the extraction pipe 72 is installed on the side of the pump 71, with the end of the extraction pipe 72 placed inside the screen cylinder 81. A discharge pipe 73 is installed at the top of the extraction section 7 and inserted into the guide hopper 4. When the pump 71 is started, it extracts fragments of unqualified broken plastic bottles from the screen cylinder 81 through the extraction pipe 72, and then sends them into the guide hopper 4 through the discharge pipe 73, where they enter the crushing box 3 for further crushing, forming a complete recycling cycle.

[0037] The workflow of this invention is as follows: Waste plastic bottles to be processed are fed into the feed hopper 2 through the feed inlet 21 on the side of the feed hopper 2, where they are temporarily stored. The drive unit 6 mounted on the back of the feed hopper 2 starts operating, and the servo motor 62 starts, driving the threaded rod 63 to rotate. The threaded seat 64 moves on the threaded rod 63, and the baffle plate 51 connected to the threaded seat 64 drives the crushing plate 5 to move, crushing the plastic bottles in the feed hopper 2. The limiting plate 23 on the inner wall of the feed hopper 2 controls the number of plastic bottles entering the crushing area of ​​the crushing plate 5. The screen plate 24 on the inner wall of the bottom guide port 22 prevents plastic bottles from falling out of the guide port 22 before crushing, ensuring the crushing operation proceeds normally. After preliminary crushing, the plastic bottles are guided into the crushing box 3 mounted on top of the screening box 1 through the guide hopper 4. The drive motor 35 on one side of the crushing chamber 3 starts, driving the connected rotating rod 32 to rotate. Through the meshing transmission of the gear 34, it drives another rotating rod 32 to rotate, which in turn drives two sets of staggered rotating blades 33 to rotate. These blades cooperate with the staggered fixed blades 36 on the inner wall of the chamber 31 to fully crush the plastic bottles that have entered the chamber 31. The protective cover 37 protects the gear 34 to prevent dust and other contaminants from entering and affecting the transmission, while also ensuring the safety of the operator. The crushed plastic bottles enter the sieve cylinder 81 installed at the bottom of the baffle plate 11 through the leakage hole at the baffle plate 11. The rotating motor 83 at the bottom of the mounting bracket 82 on the inner wall of the screening chamber 1 starts, driving the sieve cylinder 81 to rotate and screen the crushed plastic bottles. Those that meet the particle size requirements fall through the sieve cylinder 81, while those that do not meet the requirements remain in the sieve cylinder 81. The material extraction section 7 installed on one side of the screening box 1 starts working, and the material extraction pump 71 starts. The fragments of the crushed plastic bottles that did not meet the requirements are extracted from the screen cylinder 81 through the material extraction pipe 72, and then sent to the guide hopper 4 through the discharge pipe 73, and then into the crushing box 3 for re-crushing, forming a complete recycling cycle. The filter plate 12 located at the bottom of the screening section 8 on the inner wall of the screening box 1 further filters the crushed plastic bottles and impurities. The impurities are discharged through the ash discharge pipe 14. The material receiving door 13 installed on the surface of the screening box 1 is opened to remove the processed plastic bottles that meet the particle size requirements. In addition, the feed box 2 is placed on the support frame 15 installed on the surface of the screening box 1 for stable support.

[0038] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste plastic bottle recycling and processing device, comprising a screening box (1), characterized in that, A crushing box (3) is installed on the top of the screening box (1). The crushing box (3) is used to crush the plastic bottles fed into the screening box (1). A guide hopper (4) is installed on the top of the crushing box (3). The guide hopper (4) is used to guide the plastic bottles. A feeding box (2) is installed on the top of one side of the guide hopper (4). The feeding box (2) is used to temporarily store the plastic bottles. A feeding port (21) is opened on the side of the feeding box (2). The feeding port (21) is used to feed the plastic bottles. The feeding box (2) contains... A movable crushing plate (5) is installed, which is used to crush plastic bottles that enter the feed box (2). A drive unit (6) is installed on the back of the feed box (2), which is used to drive the crushing plate (5) to move. A baffle plate (11) is installed on the inner wall of the screening box (1), which is used to shield the plastic bottles crushed by the crushing box (3). A screening unit (8) is installed at the bottom of the crushing box (3), which is used to screen the crushed plastic bottles.

2. The waste plastic bottle recycling and processing device according to claim 1, characterized in that, The drive unit (6) includes a mounting plate (61), a servo motor (62), a threaded rod (63), and a threaded seat (64). The mounting plate (61) is mounted on the back of the feed box (2). The servo motor (62) is mounted on the side of the mounting plate (61). The output end of the servo motor (62) is mounted on the threaded rod (63). The threaded seat (64) is threadedly connected to the surface of the threaded rod (63). A baffle plate (51) is mounted on the side of the crushing plate (5). The baffle plate (51) extends through to the outside of the feed box (2) to prevent plastic bottles from falling to the other side of the crushing plate (5) when the crushing plate (5) moves. The surface of the threaded seat (64) is fixedly connected to the baffle plate (51) to drive the crushing plate (5) to move.

3. The waste plastic bottle recycling and processing device according to claim 1, characterized in that, The inner wall of the feed box (2) is equipped with a limiting plate (23), which is located on top of the crushing plate (5). The bottom of the feed box (2) is provided with a guide port (22), and a screen plate (24) is installed on the inner wall of the guide port (22). The screen plate (24) is used to prevent the plastic bottles to be crushed from falling.

4. The waste plastic bottle recycling and processing device according to claim 1, characterized in that, The crushing box (3) includes a box body (31) installed on top of the screening box (1) and two sets of rotating blades (33) set inside the box body (31) for crushing plastic bottles. The two rotating blades (33) are arranged alternately. A rotatable rotating rod (32) is installed on the inner wall of the box body (31). The rotating blades (33) are installed on the surface of the rotating rod (32) and are used to drive the rotating blades (33) to rotate when the rotating rod (32) rotates. Gears (34) are installed at the ends of the rotating rods (32). The gears (34) are meshed and connected to drive the other rotating rod (32) to rotate when one rotating rod (32) rotates.

5. The waste plastic bottle recycling and processing device according to claim 4, characterized in that, The crushing box (3) also includes a drive motor (35) and a fixed blade (36). The drive motor (35) is installed on one side of the box body (31) and its output end is connected to one of the rotating rods (32) to drive the rotating rod (32) to rotate. The fixed blade (36) is installed on the inner wall of the box body (31) and is staggered with the rotating blade (33). A protective cover (37) is installed on the other side of the box body (31). The protective cover (37) is installed at the gear (34) to protect the gear (34).

6. The waste plastic bottle recycling and processing device according to claim 1, characterized in that, The screening unit (8) includes a screen cylinder (81), a mounting frame (82), and a rotating motor (83). The screen cylinder (81) is installed at the bottom of the baffle plate (11) and is rotatably connected to it through a bearing. A material leakage hole is provided at the baffle plate (11). The screen cylinder (81) is located below the material leakage hole and communicates with the material leakage hole. The mounting frame (82) is installed on the inner wall of the screening box (1). The rotating motor (83) is installed at the bottom of the mounting frame (82). The output end of the rotating motor (83) is fixedly connected to the screen cylinder (81) and is used to drive the screen cylinder (81) to rotate.

7. The waste plastic bottle recycling and processing device according to claim 1, characterized in that, The inner wall of the screening box (1) is provided with a filter plate (12) at the bottom of the screening section (8). The filter plate (12) is used to filter the crushed plastic bottles and impurities. The surface of the screening box (1) is equipped with a material receiving door (13) and an ash discharge pipe (14). The material receiving door (13) is used to open and take out the crushed plastic bottles. The ash discharge pipe (14) is used to discharge impurities. The surface of the screening box (1) is equipped with a support frame (15). The support frame (15) is used to support the feed box (2).

8. A waste plastic bottle recycling and processing device according to claim 6, characterized in that, A material extraction section (7) is installed on one side of the screening box (1). The material extraction section (7) is used to extract the fragments of larger plastic bottles after they are broken into the crushing box (3) for re-crushing.

9. A waste plastic bottle recycling and processing device according to claim 8, characterized in that, The material extraction section (7) includes a material extraction pump (71) installed on one side of the screening box (1), a material extraction pipe (72) installed on the side of the material extraction pump (71), the end of the material extraction pipe (72) is set in the screen cylinder (81), and a discharge pipe (73) is installed on the top of the material extraction section (7), and the discharge pipe (73) is inserted into the guide hopper (4).

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