A shredding device for waste recycling plastic pellets

Abstract

This invention discloses a crushing device for recycling plastic particles from waste materials, relating to the field of plastic particle technology. It includes a crushing and recycling bin, a fixed motor fixedly connected to one side of the bin, and a connecting pipe fixedly connected to the other side. A feeding trough is fixedly connected to the top of the connecting pipe. An auxiliary feeding mechanism is installed inside the feeding trough. By using this mechanism, when a large number of plastic particles are fed into the feeding trough, an electric air pump is activated to blow air upwards rapidly. The electric air pump continuously blows air upwards through an annular jet vent at the top, creating an upward airflow at the center of the feeding trough. This allows the plastic particles, which accumulate in the feeding trough and fall through the gap between the electric air pump and the feeding trough, to be more evenly dispersed and fall. By continuously pushing the plastic particles, the problem of agglomeration, jamming, and clogging during the falling process is reduced.

Description

Technical Field

[0001] This invention relates to the field of plastic particle technology, specifically to a crushing device for recycling waste plastic particles. Background Technology

[0002] Plastic pellets are plastic raw materials that exist in granular form. According to their properties, they are divided into three categories: general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include common types such as polypropylene and polyethylene. Microplastics specifically refer to man-made polymer particles with a particle size of less than 5 mm, including industrial product additives and plastic degradation products. In daily life, recycled pellets can be used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery, and other household utensils and various plastic products. In the clothing industry, recycled pellets can be used to manufacture clothing, ties, buttons, and zippers. In the building materials industry, recycled pellets can be used to manufacture various building components, building tools, plastic doors and windows, and mortar buckets. A plastic particle crushing and recycling device described in patent application CN108943492A includes a washing chamber with a feed inlet at the top, water spray nozzles evenly distributed on both sides and the top of the inner wall of the washing chamber, a push plate at the bottom of the washing chamber, a water storage chamber on one side of the washing chamber, a filter chamber at the bottom of the washing chamber connected to the washing chamber, and a crushing chamber on the other side of the washing chamber with a crushing device at the top of the inner wall of the crushing chamber and a clamping plate at the bottom of the inner wall of the crushing chamber. In the field of plastic crushing and recycling, crushing and recycling plastic particles is a common and crucial step. Currently, conventional plastic particle crushing and recycling equipment faces numerous problems when large quantities of plastic particles are fed into the equipment. Firstly, after being fed into the feed trough, large amounts of plastic particles quickly accumulate at the bottom due to gravity and fall from the connection point between the feed trough and subsequent equipment. This agglomeration during the fall can cause the plastic particles to become stuck in the feed channel, leading to blockages, affecting normal equipment operation, reducing production efficiency, and potentially damaging equipment components. Secondly, the surface of recycled plastic particles often has various lightweight impurities attached, such as dust and paper scraps. These impurities enter the crushing and recycling bin along with the plastic particles, affecting crushing and recycling efficiency and resulting in uneven particle size in the finished product. This reduces the quality of the recycled plastic and hinders subsequent reprocessing and utilization. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a crushing device for recycling plastic particles from waste materials, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a crushing device for recycling plastic particles from waste materials, comprising a crushing and recycling box, a fixed motor fixedly connected to one side of the crushing and recycling box, a connecting pipe fixedly connected to one side of the crushing and recycling box, a feeding trough fixedly connected to the top of the connecting pipe, and an auxiliary feeding mechanism provided inside the feeding trough; The auxiliary feeding mechanism includes: An electric air pump, wherein a fixed cylinder is fixedly connected to the outer wall of the electric air pump, one end of the fixed cylinder is fixedly connected to the inner wall of the feed trough, and an annular air jet groove is opened on the top of the electric air pump. The electric air pump has a circular columnar structure. A rotating block, which is a circular cylindrical structure, has its bottom fixedly connected to the top of an electric air pump, and a cylindrical connecting block fixedly connected to the top of the rotating block, with a circular rotating shaft fixedly connected to the top of the cylindrical connecting block.

[0005] Preferably, an arc-shaped actuating plate is fixedly connected to the outer wall of the circular rotating shaft, and the number of the arc-shaped actuating plates is three, which are arranged in a circular array at equal intervals on the outer wall of the circular rotating shaft.

[0006] Preferably, the arc-shaped actuating plate has an arc-shaped plate structure, and a fixing connecting strip is fixedly connected to the outer wall of the cylindrical connecting block.

[0007] Preferably, one end of the fixed connecting strip is fixedly connected to a circular limiting block, and the outer wall of the circular limiting block is slidably connected to an opening and closing inclined plate. The opening and closing inclined plate is slidably connected to the outer wall of the circular limiting block through a dovetail groove. There are three fixed cylinders, which are arranged in an equidistant ring around the electric air pump. There are also three fixed connecting strips, which are arranged in an equidistant ring around the cylindrical connecting block.

[0008] Preferably, the number of the fixed connecting strips and the opening and closing inclined plates is three, and the three fixed connecting strips and the opening and closing inclined plates are evenly arranged in a ring on the outer wall of the cylindrical connecting block.

[0009] Preferably, the outer wall of the circular limiting block is provided with an adaptive adjustment mechanism, the adaptive adjustment mechanism including an arc-shaped protective cover, the arc-shaped protective cover being fixedly connected to one side of the opening and closing inclined plate.

[0010] Preferably, the outer wall of the arc-shaped protective cover is slidably connected to the outer wall of the circular limiting block, and a first sliding telescopic plate is fixedly connected to one side of the opening and closing inclined plate.

[0011] Preferably, an arc-shaped telescopic sleeve is slidably connected to the outer wall of the first sliding telescopic plate, and a second sliding telescopic plate is slidably connected to the inner wall of the arc-shaped telescopic sleeve. A fixed limiting seat is fixedly connected to one end of the second sliding telescopic plate. Preferably, the bottom of the fixed limiting seat is fixedly connected to the outer wall of the circular limiting block, and the outer wall of the arc-shaped telescopic sleeve is provided with an air communication hole, the inside of which is connected to the inside of the arc-shaped telescopic sleeve.

[0012] Preferably, the first sliding telescopic plate, the arc-shaped telescopic sleeve, and the second sliding telescopic plate are all arc-shaped plate structures and are arranged coaxially. The arc-shaped telescopic sleeve is provided with a built-in spring. The end of the built-in spring away from the first sliding telescopic plate is fixedly connected to one end of the second sliding telescopic plate, and the end of the built-in spring away from the second sliding telescopic plate is fixedly connected to one end of the first sliding telescopic plate. The built-in spring is used for the sliding and resetting function of the first sliding telescopic plate and the second sliding telescopic plate.

[0013] This invention provides a crushing device for recycling plastic particles from waste materials. It has the following beneficial effects: 1. This invention, by setting up an auxiliary feeding mechanism, activates an electric air pump to blow air upwards rapidly when a large number of plastic particles are put into the feeding trough. The electric air pump continuously blows air upwards through the annular jet slot at the top, creating an upward airflow at the center of the feeding trough. This allows the plastic particles that accumulate in the feeding trough and fall through the gap between the electric air pump and the feeding trough to be more evenly dispersed and fall. By continuously pushing the plastic particles, the problem of agglomeration, squeezing, and clogging of plastic particles during the falling process is reduced. 2. By setting up an auxiliary feeding mechanism, the airflow causes the plastic particles inside the feeding trough to tumble inside and outside when it blows upward, so that the plastic particles inside the feeding trough can be mixed as evenly as possible. When each plastic particle passes through the airflow, it can also carry light impurities on the surface of the plastic particles to float up and be discharged from the feeding trough, which significantly improves the purity of the plastic particles falling into the crushing and recycling box, further ensuring the efficiency of subsequent crushing and recycling and the uniformity of the particle size of the finished product. 3. This invention, by setting up an auxiliary feeding mechanism, pushes an inclined rotating square plate when the airflow blows upward rapidly. The rotating square plate, along with the rotating round block, begins to rotate. The rotation of the round block, through the cylindrical connecting block, drives the upper circular rotating shaft and the arc-shaped agitator plate to rotate synchronously. The arc-shaped agitator plate further agitates the plastic particles inside the feeding trough, causing them to fall continuously, effectively breaking up agglomerates and preventing stagnation and accumulation. The periodic agitation of the arc-shaped agitator plate works synergistically with the airflow disturbance. 4. By setting up an auxiliary feeding mechanism, when the plastic granules are accelerated to fall, the gravity of the falling plastic granules will touch the opening and closing inclined plate. After being pressed, the opening and closing inclined plate will drive the fixed connecting strip and the cylindrical connecting block to rotate counterclockwise through its inclined surface. This can further assist the rotation of the cylindrical connecting block, the circular rotating shaft, and the arc-shaped actuating plate. The falling effect of the plastic granules is enhanced by the actuation of the airflow and the arc-shaped actuating plate. At the same time, the continuous and stable falling can also feed back to the force rotation feedback of the opening and closing inclined plate and the fixed connecting strip, forming a mutually assisting cyclic rotation mechanism, so that the entire feeding process can achieve adaptive dynamic balance and avoid blockage or idling at a certain position. 5. By setting up an auxiliary feeding mechanism, this invention enables the opening and closing tilting plate to rotate automatically when heavy objects fall or when there is a large accumulation of blockages and high pressure. This increases the angle of the tilting plate and opens up the falling space between the electric air pump and the feeding trough. At this time, the reaction force of the tilting plate is reduced, which reduces the rotation and prying effect of the fixed connecting strip and the cylindrical connecting block, thus avoiding blockage. Similarly, when plastic granules fall rapidly and are heavy, the tilting plate will adjust its angle to widen the channel and ensure that heavy granules pass through smoothly. When the granules become lighter or the flow rate decreases, the spring rebound force causes the tilting plate to reset, maintaining the normal prying rhythm and airflow coordination. This invention achieves an adaptive adjustment mechanism that combines rigidity and flexibility by using plastic granules of different weights. 6. This invention, by setting an auxiliary feeding mechanism, seals the first sliding telescopic plate, the arc-shaped telescopic sleeve, and the second sliding telescopic plate inside the arc-shaped protective cover. Simultaneously, when the first sliding telescopic plate, the arc-shaped telescopic sleeve, and the second sliding telescopic plate extend and retract, air enters and exits through the air communication hole. Since the diameter of the air communication hole is limited, the air pressure causes it to slowly reset. When a large number of heavy items are falling, the opening and closing tilting plate is continuously struck and rotated at an angle, and the slow reset maintains a relatively steep angle, continuously widening the feeding channel. This avoids the mechanical fatigue caused by continuous reciprocating reset and vibration, and prevents problems affecting the falling efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the auxiliary feeding mechanism of the present invention; Figure 3 This is a schematic diagram of the auxiliary feeding mechanism of the present invention. Figure 1 ; Figure 4 For the present invention Figure 2 Enlarged view of point A; Figure 5 This is a schematic diagram of the auxiliary feeding mechanism of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the auxiliary feeding mechanism of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the adaptive variation mechanism of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the adaptive variation mechanism of the present invention. Figure 2 .

[0015] In the diagram: 1. Fixed motor; 2. Crushing and recycling bin; 3. Auxiliary feeding mechanism; 301. Electric air pump; 302. Rotating block; 303. Annular air jet trough; 304. Cylindrical connecting block; 305. Circular rotating shaft; 306. Fixed connecting strip; 307. Circular limit block; 308. Opening and closing tilting plate; 309. Fixed cylinder; 310. Rotating square plate; 311. Arc-shaped actuating plate; 4. Adaptive changing mechanism; 401. Arc-shaped protective cover; 402. First sliding telescopic plate; 403. Arc-shaped telescopic sleeve; 404. Second sliding telescopic plate; 405. Air communication hole; 406. Fixed limit seat; 5. Connecting pipe; 6. Feed trough. Detailed Implementation

[0016] Example 1: Please refer to Figure 1-3 The present invention provides a technical solution: a crushing device for recycling plastic particles from waste materials, including a crushing and recycling box 2, a fixed motor 1 fixedly connected to one side of the crushing and recycling box 2, a connecting pipe 5 fixedly connected to one side of the crushing and recycling box 2, a feeding trough 6 fixedly connected to the top of the connecting pipe 5, and an auxiliary feeding mechanism 3 provided inside the feeding trough 6. The auxiliary feeding mechanism 3 includes: An electric air pump 301 has a fixed cylinder 309 fixedly connected to its outer wall. One end of the fixed cylinder 309 is fixedly connected to the inner wall of the feed trough 6. An annular air jet groove 303 is opened on the top of the electric air pump 301. The electric air pump 301 has a circular cylindrical structure. Rotating block 302 is a circular cylindrical structure. The bottom of rotating block 302 is fixedly connected to the top of electric air pump 301. A cylindrical connecting block 304 is fixedly connected to the top of rotating block 302. A circular rotating shaft 305 is fixedly connected to the top of cylindrical connecting block 304. When in use, the plastic particles that need to be crushed and recycled are put into the feed trough 6, and then enter the crushing and recycling box 2 through the connecting pipe 5. The fixed motor 1 is started to crush and recycle the plastic particles in the crushing and recycling box 2 at high speed. When a large number of plastic particles are fed into the feed trough 6, the electric air pump 301 is activated to blow air upwards rapidly. The electric air pump 301 continuously blows air upwards through the annular air jet 303 at the top, so that an upward airflow is formed at the center of the feed trough 6. This allows the plastic particles that accumulate in the feed trough 6 and fall through the gap between the electric air pump 301 and the feed trough 6 to be dispersed and fall more evenly. By continuously pushing the plastic particles, the problem of agglomeration, squeezing and clogging of plastic particles during the falling process is reduced. At the same time, when the airflow blows upward, it causes the plastic particles inside the feed trough 6 to tumble inside and outside, so that the plastic particles inside the feed trough 6 can be mixed as evenly as possible. When each plastic particle passes through the airflow, it can also carry the light impurities on the surface of the plastic particle to float up and be discharged from the feed trough 6, which significantly improves the purity of the plastic particles falling into the crushing and recycling box 2, further ensuring the subsequent crushing and recycling efficiency and the uniformity of the finished product particle size. Example 2: Please refer to Figure 1-5 Based on Embodiment 1, this invention provides a technical solution: Existing feeding systems suffer from numerous problems in actual operation. On one hand, after a large number of plastic particles are fed into the feeding trough, due to the particles' inherent characteristics and the forces between them, they easily agglomerate within the trough. During their descent, these agglomerated plastic particles, due to uneven falling speed and excessive space occupation, can accumulate in narrow channels of the feeding trough or at connection points with subsequent equipment, leading to blockages. Once a blockage occurs, not only does it require manual cleaning after machine shutdown, severely impacting production efficiency, but it can also damage the equipment if cleaning is not timely, increasing maintenance costs and losses due to production interruptions.

[0017] On the other hand, existing feeding systems lack effective adaptive adjustment mechanisms. During the feeding process, different batches and types of plastic particles differ in density, particle size, and shape, leading to varying descent patterns within the feeding trough. Existing equipment cannot automatically adjust the feeding status based on these actual conditions, easily resulting in overfeeding and blockages at some locations, while underfeeding and idling occur at others. This makes it difficult to guarantee continuous and stable feeding, failing to meet the demands of modern plastic crushing and recycling processing for efficient and stable production. Therefore, how to solve the blockage problem caused by the agglomeration of plastic particles in the feeding trough and achieve adaptive dynamic balance in the feeding process has become a key technical problem urgently needing to be solved in the current plastic crushing and recycling processing field. Therefore, three arc-shaped actuating plates 311 are fixedly connected to the outer wall of the circular rotating shaft 305, arranged in an equidistant ring array on the outer wall of the circular rotating shaft 305.

[0018] The arc-shaped actuating plate 311 has an arc-shaped plate structure, and the cylindrical connecting block 304 has a fixed connecting strip 306 fixedly connected to its outer wall.

[0019] One end of the fixed connecting strip 306 is fixedly connected to a circular limiting block 307. The outer wall of the circular limiting block 307 is slidably connected to an opening and closing inclined plate 308. The opening and closing inclined plate 308 is slidably connected to the outer wall of the circular limiting block 307 through a dovetail groove. There are three fixed cylinders 309, which are arranged in an equidistant ring around the electric air pump 301. There are three fixed connecting strips 306, which are arranged in an equidistant ring around the cylindrical connecting block 304.

[0020] The number of fixed connecting strips 306 and opening and closing inclined plates 308 is three, and the three fixed connecting strips 306 and opening and closing inclined plates 308 are evenly arranged in a ring on the outer wall of the cylindrical connecting block 304. When the airflow blows upward rapidly, it pushes the tilted rotating square plate 310, which in turn causes the rotating round block 302 to start rotating. The rotation of the rotating round block 302 drives the upper circular rotating shaft 305 and the arc-shaped agitator plate 311 to rotate synchronously through the cylindrical connecting block 304. The arc-shaped agitator plate 311 further agitates the plastic particles inside the feed trough 6, causing them to fall continuously, effectively breaking up agglomerates and preventing them from accumulating. The periodic agitation of the arc-shaped agitator plate 311 works in conjunction with the airflow disturbance. When the plastic granules are accelerated to fall, the gravity of the falling plastic granules will touch the opening and closing tilting plate 308. After being pressed, the opening and closing tilting plate 308 will drive the fixed connecting strip 306 and the cylindrical connecting block 304 to rotate counterclockwise through its tilted surface. This can further assist the rotation of the cylindrical connecting block 304, the circular rotating shaft 305, and the arc-shaped actuating plate 311. The falling effect of the plastic granules is enhanced by the airflow and the actuation of the arc-shaped actuating plate 311. At the same time, the continuous and stable falling can also feed back to the force rotation feedback of the opening and closing tilting plate 308 and the fixed connecting strip 306, forming a mutually assisting cyclic rotation mechanism, so that the entire feeding process can achieve adaptive dynamic balance and avoid blockage or idling at a certain position. Example 3: Please refer to Figure 1-8Based on Embodiments 1 and 2, this invention provides a technical solution: When processing large and heavy plastic granules, existing feeding devices often face numerous challenges. On one hand, due to the large mass and strong impact force of these heavy plastic granules, they easily accumulate in localized areas during their descent into the feeding trough, especially at critical channels connecting the feeding trough to subsequent equipment, where blockages are highly likely. Once a blockage occurs, it not only interrupts the production process, requiring significant time and manpower for cleaning, but also causes unnecessary wear and tear on the equipment, reducing its lifespan and increasing production costs.

[0021] On the other hand, existing feeding devices lack flexible adaptive adjustment capabilities. In actual production, the weight and flow rate of plastic granules are not constant and fluctuate due to factors such as raw material source and particle size. When a large number of heavy plastic granules fall rapidly, existing devices cannot adjust the channel size in time to adapt to this change, leading to an increased risk of blockage. When the granules become lighter or the flow rate decreases, the device cannot quickly return to its normal state and maintain a suitable feeding rhythm, affecting production efficiency and product quality. In addition, frequent mechanical reciprocating resets can easily cause mechanical fatigue when dealing with the impact of heavy granules, further reducing the reliability and stability of the device and posing a hidden danger to continuous production. Therefore, how to design a feeding device that can effectively cope with plastic granules of different weights and flow rates, achieve adaptive adjustment, avoid blockage, and ensure efficient and stable production operation has become a key problem that urgently needs to be solved in the current plastic crushing and recycling processing field. Therefore, an adaptive adjustment mechanism 4 is provided on the outer wall of the circular limit block 307. The adaptive adjustment mechanism 4 includes an arc-shaped protective cover 401, which is fixedly connected to one side of the opening and closing inclined plate 308.

[0022] The outer wall of the arc-shaped protective cover 401 is slidably connected to the outer wall of the circular limiting block 307, and the first sliding telescopic plate 402 is fixedly connected to one side of the opening and closing inclined plate 308.

[0023] The outer wall of the first sliding telescopic plate 402 is slidably connected to an arc-shaped telescopic sleeve 403, and the inner wall of the arc-shaped telescopic sleeve 403 is slidably connected to a second sliding telescopic plate 404. One end of the second sliding telescopic plate 404 is fixedly connected to a fixed limiting seat 406.

[0024] The bottom of the fixed limiting seat 406 is fixedly connected to the outer wall of the circular limiting block 307. The outer wall of the arc-shaped telescopic sleeve 403 is provided with an air communication hole 405, and the interior of the air communication hole 405 is connected to the interior of the arc-shaped telescopic sleeve 403.

[0025] The first sliding telescopic plate 402, the arc-shaped telescopic sleeve 403, and the second sliding telescopic plate 404 are all arc-shaped plate structures and are arranged coaxially. The arc-shaped telescopic sleeve 403 is provided with a built-in spring. The end of the built-in spring away from the first sliding telescopic plate 402 is fixedly connected to one end of the second sliding telescopic plate 404, and the end of the built-in spring away from the second sliding telescopic plate 404 is fixedly connected to one end of the first sliding telescopic plate 402. The built-in spring is used for the sliding reset function of the first sliding telescopic plate 402 and the second sliding telescopic plate 404. When the plastic granules are large and heavy, upon contact with the tilting plate 308 during their fall, it will push the tilting plate 308 to rotate via the circular limit block 307. After rotation, it will be pulled back to its original position by the built-in springs inside the first sliding telescopic plate 402, the arc-shaped telescopic sleeve 403, and the second sliding telescopic plate 404 within the arc-shaped protective cover 401. This allows the tilting plate 308 to rotate automatically when heavy objects are falling or when there is a significant accumulation of blockage and pressure, raising its own angle and opening the connection between the electric air pump 301 and the feed trough 6. The falling space between them reduces the reaction force of the opening and closing tilt plate 308 to push the fixed connecting strip 306 and the cylindrical connecting block 304 to rotate and paddle, thus avoiding blockage. Similarly, when the plastic particles fall quickly and are relatively heavy, the opening and closing tilt plate 308 will adjust its angle to widen the channel and ensure that the heavy particles pass through smoothly. When the particles become lighter or the flow rate decreases, the spring rebound force will cause the opening and closing tilt plate 308 to reset, maintaining the normal paddle rhythm and airflow coordination. This achieves a flexible and rigid adaptive adjustment mechanism through plastic particles of different weights. The arc-shaped protective cover 401 is used to simultaneously slide and rotate outside the circular limit block 307 when the opening and closing tilting plate 308 rotates on the outer wall of the circular limit block 307, and to seal the first sliding telescopic plate 402, the arc-shaped telescopic sleeve 403, and the second sliding telescopic plate 404 inside the arc-shaped protective cover 401. At the same time, when the first sliding telescopic plate 402, the arc-shaped telescopic sleeve 403, and the second sliding telescopic plate 404 extend and retract, air enters and exits through the air communication hole 405. Since the diameter of the air communication hole 405 is limited, the air pressure causes it to slowly reset. When a large number of heavy items are falling, the opening and closing tilting plate 308 is continuously struck and rotated at an angle, and the reset is slow, so a relatively steep angle can be maintained, continuously widening the material discharge channel and avoiding mechanical fatigue and the problem of affecting the falling efficiency caused by continuous reciprocating reset and shaking.

[0026] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A crushing device for recycling plastic particles from waste materials, comprising a crushing and recycling box (2), a fixed motor (1) fixedly connected to one side of the crushing and recycling box (2), a connecting pipe (5) fixedly connected to one side of the crushing and recycling box (2), and a feeding trough (6) fixedly connected to the top of the connecting pipe (5), characterized in that: An auxiliary feeding mechanism (3) is provided inside the feeding trough (6); The auxiliary feeding mechanism (3) includes: An electric air pump (301) is provided with a fixed cylinder (309) fixedly connected to its outer wall. One end of the fixed cylinder (309) is fixedly connected to the inner wall of the feed trough (6). An annular jet groove (303) is provided on the top of the electric air pump (301). The electric air pump (301) is a circular columnar structure. A rotating circular block (302) is a circular cylindrical structure. The bottom of the rotating circular block (302) is fixedly connected to the top of the electric air pump (301). A cylindrical connecting block (304) is fixedly connected to the top of the rotating circular block (302), and a circular rotating shaft (305) is fixedly connected to the top of the cylindrical connecting block (304).

2. The crushing device for recycling plastic particles from waste materials according to claim 1, characterized in that: The outer wall of the circular rotating shaft (305) is fixedly connected to an arc-shaped actuating plate (311). There are three arc-shaped actuating plates (311), which are arranged in an equidistant ring on the outer wall of the circular rotating shaft (305).

3. The crushing device for recycling plastic particles from waste materials according to claim 2, characterized in that: The arc-shaped actuating plate (311) has an arc-shaped plate structure, and the outer wall of the cylindrical connecting block (304) is fixedly connected with a fixing connecting strip (306).

4. The crushing device for recycling plastic particles from waste materials according to claim 3, characterized in that: One end of the fixed connecting strip (306) is fixedly connected to a circular limiting block (307). The outer wall of the circular limiting block (307) is slidably connected to an opening and closing inclined plate (308). The opening and closing inclined plate (308) is slidably connected to the outer wall of the circular limiting block (307) through a dovetail groove. There are three fixed cylinders (309). The three fixed cylinders (309) are arranged in an equidistant ring around the electric air pump (301) outside the cylinder. There are three fixed connecting strips (306). The three fixed connecting strips (306) are arranged in an equidistant ring around the cylindrical connecting block (304) outside the cylinder.

5. The crushing device for recycling plastic particles from waste materials according to claim 4, characterized in that: The number of fixed connecting strips (306) and opening and closing inclined plates (308) is three, and the three fixed connecting strips (306) and opening and closing inclined plates (308) are arranged in a ring uniform array on the outer wall of the cylindrical connecting block (304).

6. The crushing device for recycling plastic particles from waste materials according to claim 5, characterized in that: The outer wall of the circular limiting block (307) is provided with an adaptive change mechanism (4), which includes an arc-shaped protective cover (401) and is fixedly connected to one side of the opening and closing tilting plate (308).

7. The crushing device for recycling plastic particles from waste materials according to claim 6, characterized in that: The outer wall of the arc-shaped protective cover (401) is slidably connected to the outer wall of the circular limiting block (307), and a first sliding telescopic plate (402) is fixedly connected to one side of the opening and closing tilting plate (308).

8. The crushing device for recycling plastic particles from waste materials according to claim 7, characterized in that: The outer wall of the first sliding telescopic plate (402) is slidably connected to an arc-shaped telescopic sleeve (403), and the inner wall of the arc-shaped telescopic sleeve (403) is slidably connected to a second sliding telescopic plate (404). One end of the second sliding telescopic plate (404) is fixedly connected to a fixed limiting seat (406).

9. A crushing device for recycling plastic particles from waste materials according to claim 8, characterized in that: The bottom of the fixed limiting seat (406) is fixedly connected to the outer wall of the circular limiting block (307), and the outer wall of the arc-shaped telescopic sleeve (403) is provided with an air communication hole (405), and the interior of the air communication hole (405) is connected to the interior of the arc-shaped telescopic sleeve (403).

10. A crushing device for recycling plastic particles from waste materials according to claim 9, characterized in that: The first sliding telescopic plate (402), the arc-shaped telescopic sleeve (403), and the second sliding telescopic plate (404) are all arc-shaped plate structures and are arranged coaxially. The arc-shaped telescopic sleeve (403) is provided with a built-in spring. The end of the built-in spring away from the first sliding telescopic plate (402) is fixedly connected to one end of the second sliding telescopic plate (404), and the end of the built-in spring away from the second sliding telescopic plate (404) is fixedly connected to one end of the first sliding telescopic plate (402). The built-in spring is used for the sliding reset function of the first sliding telescopic plate (402) and the second sliding telescopic plate (404).

Images