CN118477877A - A crushing device for recycling plastic waste - Google Patents

Abstract

The invention relates to the technical field of plastic garbage recovery, in particular to a crushing device for plastic garbage recovery, which comprises a conveying table, wherein the top of the conveying table is fixedly connected with a pressing mechanism, the front side of the conveying table is fixedly connected with a crusher, and the rear side of the crusher is fixedly connected with a feeding mechanism. The plastic garbage crushing machine has the advantages that the volume of plastic garbage is reduced, the subsequent crushing treatment is convenient, the crushing efficiency is improved, meanwhile, the load of the crusher is reduced, the service life of equipment is prolonged, in the crushing process, the flattened plastic garbage can be crushed by the cutting roller in the crusher, the volume of the plastic garbage is further reduced, the recycling and the transportation are convenient, and the transportation cost is reduced.

Description

A crushing device for recycling plastic waste

Technical Field

The present invention relates to the technical field of plastic waste recycling, and more specifically, to a crushing device for plastic waste recycling.

Background Art

Plastic waste is generally called white pollution, which is a vivid name for the phenomenon of waste plastic polluting the environment. It refers to plastic products such as packaging bags, agricultural mulch, disposable tableware, plastic bottles made of high molecular compounds such as polystyrene, polypropylene, polyvinyl chloride, etc., which are discarded as solid waste after use. Due to random littering and difficulty in degradation, they cause pollution to the ecological environment and landscape.

According to the patent document: CN109049423A, a garbage recycling device for crushing plastic bottles is disclosed, including a device body, a feeding port is fixed on the top of the device body, an observation window and a switch panel are respectively arranged on the outer surface of the device body, an on/off key and a reset key are respectively arranged on the outer surface of the switch panel, and a discharge port is arranged at the lower side of the device body. The garbage recycling device for crushing plastic bottles is respectively provided with two rolling rollers and a first motor. When the plastic bottle enters from the feeding port and falls onto the rolling roller, the two first motors rotate in the opposite direction to squeeze and flatten the plastic bottle, which can greatly reduce the volume of the plastic bottle and make the plastic bottle more convenient for recycling and processing. The flattened plastic bottle falls back onto the cutting roller, and the two second motors rotate in the opposite direction, and the cutter head on the cutting roller also rotates in the opposite direction, which can crush the flattened plastic bottle, greatly improving the crushing efficiency, further reducing the volume of the plastic bottle, facilitating recycling and transportation, and reducing transportation costs.

When plastic waste needs to be recycled and crushed, most of the plastic waste is in the form of water bottles or plastic bags, etc., with various shapes and sizes. Traditional crushing devices may encounter problems such as uneven crushing and low efficiency when processing such plastic waste. Moreover, if the plastic waste is directly thrown into the crusher, it may be blocked or stuck, thus affecting the normal operation and life of the equipment. During the crushing process, the plastic waste may be entangled in the crusher, causing damage to the machine.

Summary of the invention

In order to overcome the above-mentioned defects of the prior art, the present invention provides a crushing device for recycling plastic waste. The technical problem to be solved by the present invention is: when plastic waste needs to be recycled and crushed, most of the plastic waste is water bottles or plastic bags, etc., with different shapes and sizes. Traditional crushing devices may encounter problems of uneven crushing and low efficiency when processing such plastic waste. Moreover, if the plastic waste is directly thrown into the crusher, blockage or jamming may occur, thereby affecting the normal operation and life of the equipment. During the crushing process, the plastic waste may be entangled in the crusher, causing damage to the machine.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A crushing device for recycling plastic waste, comprising a conveying platform, a pressing mechanism is fixedly connected to the top of the conveying platform, a crusher is fixedly connected to the front side of the conveying platform, and a feeding mechanism is fixedly connected to the rear side of the crusher;

The conveyor platform includes two conveyor platform connecting legs, the tops of the two conveyor platform connecting legs are fixedly connected to the conveyor platform, the front side of the conveyor platform is fixedly connected to an inclined slide plate, the rear side of the right side of the conveyor platform is fixedly connected to a motor placement block, and the top of the conveyor platform is fixedly connected to a transmission platform.

As a further solution of the present invention: the transmission platform includes two transmission platform side panels, the rear sides of the two transmission platform side panels are respectively fixedly connected with rotating rod connecting plates, the inner walls of the two rotating rod connecting plates are rotatably connected with rotating rods, the outer walls of the rotating rods are fixedly connected with rotating rollers, and the right end of the rotating rod extends to the outer wall of the right rotating rod connecting plate and is fixedly connected with a motor.

As a further solution of the present invention: the right end of the rotating rod is fixedly connected to the output end of the motor, the bottom of the motor is fixedly connected to the top of the motor placement block, the front sides of the two rotating rod connecting plates are fixedly connected to the second rotating rod connecting plates, the inner walls of the two second rotating rod connecting plates are rotatably connected to the second rotating rod, the second rotating rod is fixedly connected to a diamond-shaped roller on the outer walls opposite to the two second rotating rod connecting plates, the left end of the second rotating rod connecting plate penetrates through the outer wall of the left second rotating rod connecting plate and is fixedly connected to a turntable, and the outer wall of the diamond-shaped roller and the outer wall of the roller are covered with a conveyor belt.

As a further solution of the present invention: the opposite surfaces of the two transmission platform side plates are fixedly connected with a pressing mechanism connecting plate.

As a further solution of the present invention: the pressing mechanism includes two slide groove plates, the opposite surfaces of the two slide groove plates are respectively fixedly connected to the top of the opposite surfaces of the two pressing mechanism connecting plates, the opposite inner walls of the two slide groove plates are respectively slidably connected with sliding rods, the opposite surfaces of the two sliding rods are fixedly connected with pressing blocks, and the bottom of the pressing block is fixedly connected with a T-shaped pressing plate.

As a further solution of the present invention: a C-shaped connecting rod is fixedly connected to the right top of the right slide plate, and the C-shaped connecting rod is fixedly connected to an inverted U-shaped connecting plate on the side away from the right slide plate, and the left and right sides of the bottom of the inverted U-shaped connecting plate are respectively fixedly connected to shaft connecting blocks, and the opposite surfaces of the two shaft connecting blocks are rotatably connected to the shafts, and the outer walls of the two shafts are fixedly connected to rotating rods, and the opposite surfaces of the two rotating rods are rotatably connected to push-pull rod shafts, and the outer wall of the push-pull rod shaft is fixedly connected to the push-pull rod, and the bottom of the push-pull rod is rotatably connected to the top of the pressing block.

As a further solution of the present invention: the left end of the left rotating shaft passes through the left side of the left rotating shaft connecting block and is fixedly connected to the second turntable, the outer wall of the second turntable is sleeved with a turntable transmission track, and the inner wall of the turntable transmission track on the side away from the second turntable is sleeved on the outer wall of the turntable.

As a further solution of the present invention: the feeding mechanism includes a feeding mechanism conveying table, a discharge frame is fixedly connected to the top rear side of the feeding mechanism conveying table, a feeding funnel is fixedly connected to the front side of the feeding mechanism conveying table, the top of the discharge frame is aligned with the bottom of the inclined slide plate, and the bottom of the discharge frame is hollowed out.

As a further solution of the present invention: the crusher includes a crusher body, and the left and right sides of the crusher body are respectively fixedly connected with connecting cross bars, and the tops of the two connecting cross bars are fixedly connected with multiple connecting vertical bars, and the opposite surfaces of the multiple connecting vertical bars are respectively fixedly connected to the left and right sides of the conveying platform of the feeding mechanism.

As a further solution of the present invention: the rear bottom sides of the two connecting cross bars are fixedly connected with second connecting vertical bars, the opposite surfaces of the two second connecting vertical bars are fixedly connected with second connecting cross bars, and the opposite front sides of the two second connecting cross bars are fixedly connected with storage bins, the top of the storage bins is a hollow design, the top of the storage bins is aligned with the discharge port provided at the bottom of the crusher body, and the top and bottom of the crusher body are both hollow designs.

The beneficial effects of the present invention are:

The present invention is provided with a pressing mechanism and a crusher, so that when plastic waste is recycled and crushed, the pressing mechanism can first be used to flatten the plastic waste, thereby reducing the volume of the plastic waste, facilitating subsequent crushing processing, and improving crushing efficiency. At the same time, the load of the crusher is also reduced, and the service life of the equipment is extended. During the crushing process, the cutting drum in the crusher can crush the flattened plastic waste, further reducing the volume of the plastic waste, facilitating recycling and transportation, and reducing transportation costs. In addition, the present invention is also provided with a feeding mechanism, which can automatically feed the flattened plastic waste into the crusher without manual operation, thereby improving work efficiency and reducing labor intensity.

The present invention is provided with a conveying platform, a feeding mechanism and a crusher. Before the plastic waste is recycled and crushed, the plastic waste is first transported to the pressing mechanism by the conveying platform. The pressing mechanism uses the linkage action of a rotating rod and a push-pull rod to enable the pressing block and the T-shaped pressing plate to flatten the plastic waste. The flattened plastic waste slides into the discharge frame of the feeding mechanism through an inclined slide plate, and is then automatically fed into the crusher through a feeding funnel. The cutting drum in the crusher crushes the plastic waste, and the crushed plastic waste falls into the storage bin through a discharge port, which is convenient for subsequent recycling and transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main three-dimensional structure of the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the conveying platform and the pressing mechanism of the present invention;

FIG3 is a schematic diagram of the three-dimensional structure of the conveying platform of the present invention;

FIG4 is a schematic diagram of a three-dimensional structure of a separated conveyor platform according to the present invention;

FIG5 is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention;

FIG6 is a schematic diagram of the three-dimensional structure of the feeding mechanism of the present invention;

FIG. 7 is a schematic diagram of the three-dimensional structure of the crusher of the present invention.

In the figure: 1, conveyor platform; 11, conveyor platform connecting leg; 12, conveyor platform; 13, inclined slide plate; 14, motor placement block; 15, conveyor platform; 151, conveyor platform side plate; 152, rotating rod connecting plate; 153, rotating rod; 154, roller; 155, motor; 156, second rotating rod connecting plate; 157, second rotating rod; 158, diamond roller; 159, conveyor belt; 1510, turntable; 1511, pressing mechanism connecting plate; 2, pressing mechanism; 21, slide plate; 22, slide rod; 23, C-shaped connecting plate Rod; 24, inverted U-shaped connecting plate; 25, shaft connecting block; 26, shaft; 27, rotating rod; 28, push-pull rod shaft; 210, second turntable; 211, turntable drive track; 212, push-pull rod; 213, pressure block; 214, T-shaped pressure plate; 3, feeding mechanism; 31, feeding mechanism conveying platform; 32, feeding funnel; 33, discharge frame; 4, crusher; 41, crusher body; 42, connecting cross bar; 43, connecting vertical bar; 44, second connecting vertical bar; 45, second connecting cross bar; 46, storage bin.

DETAILED DESCRIPTION

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.

As shown in Figures 1-7, the present invention provides a crushing device for recycling plastic waste, including a conveying platform 1, a pressing mechanism 2 is fixedly connected to the top of the conveying platform 1, a crusher 4 is fixedly connected to the front side of the conveying platform 1, and a feeding mechanism 3 is fixedly connected to the rear side of the crusher 4.

As shown in Fig. 2-5, the conveyor platform 1 includes two conveyor platform connecting legs 11, the tops of the two conveyor platform connecting legs 11 are fixedly connected with a conveyor platform 12, the front side of the conveyor platform 12 is fixedly connected with an inclined slide plate 13, the rear side of the right side of the conveyor platform 12 is fixedly connected with a motor placement block 14, the top of the conveyor platform 12 is fixedly connected with a conveyor platform 15, and the conveyor platform 15 includes two conveyor platform side plates 151, the rear sides of the two conveyor platform side plates 151 are respectively fixedly connected with a rotating rod connecting plate 152, the inner walls of the two rotating rod connecting plates 152 are rotatably connected with a rotating rod 153, the outer wall of the rotating rod 153 is fixedly connected with a rotating roller 154, and the right end of the rotating rod 153 extends to the right rotating rod connecting plate 15 2 and is fixedly connected with a motor 155, the right end of the rotating rod 153 is fixedly connected to the output end of the motor 155, the bottom of the motor 155 is fixedly connected to the top of the motor placement block 14, the front sides of the two rotating rod connecting plates 152 are fixedly connected with the second rotating rod connecting plates 156, the inner walls of the two second rotating rod connecting plates 156 are rotatably connected with the second rotating rods 157, the second rotating rod 157 is fixedly connected with a diamond roller 158 on the outer wall opposite to the two second rotating rod connecting plates 156, the left end of the second rotating rod connecting plate 156 penetrates to the outer wall of the left second rotating rod connecting plate 156 and is fixedly connected with a turntable 1510, the outer wall of the diamond roller 158 and the outer wall of the roller 154 are sleeved with a transmission Belt 159, the opposite surfaces of the two transmission platform side plates 151 are fixedly connected with a pressing mechanism connecting plate 1511, the pressing mechanism 2 includes two slide slot plates 21, the opposite surfaces of the two slide slot plates 21 are respectively fixedly connected to the opposite tops of the two pressing mechanism connecting plates 1511, the opposite inner walls of the two slide slot plates 21 are respectively slidably connected with slide rods 22, the opposite surfaces of the two slide rods 22 are fixedly connected with a pressing block 213, the bottom of the pressing block 213 is fixedly connected with a T-shaped pressing plate 214, the right top of the right slide slot plate 21 is fixedly connected with a C-shaped connecting rod 23, the side of the C-shaped connecting rod 23 away from the right slide slot plate 21 is fixedly connected with an inverted U-shaped connecting plate 24, the bottom left side of the inverted U-shaped connecting plate 24 The right two sides are respectively fixedly connected with shaft connection blocks 25, and the opposite surfaces of the two shaft connection blocks 25 are rotatably connected with shafts 26, and the outer walls of the two shafts 26 are fixedly connected with rotating rods 27, and the opposite surfaces of the two rotating rods 27 are rotatably connected with push-pull rod shafts 28, and the outer walls of the push-pull rod shafts 28 are fixedly connected with push-pull rods 212, and the bottom of the push-pull rod 212 is rotatably connected to the top of the pressing block 213. The left end of the left shaft 26 passes through the left side of the left shaft connection block 25 and is fixedly connected with the second turntable 210, and the outer wall of the second turntable 210 is sleeved with a turntable transmission crawler 211, and the inner wall of the turntable transmission crawler 211 away from the second turntable 210 is sleeved on the outer wall of the turntable 1510;

When the plastic waste needs to be recycled and crushed, the motor 155 is first started, and the output end of the motor 155 drives the rotating rod 153 to rotate, and the roller 154 on the rotating rod 153 rotates accordingly. At the same time, since the turntable 1510 is connected to the rotating rod 153 through the conveyor belt 159, the diamond roller 158 on the second rotating rod 157 will also rotate with the rotation of the rotating rod 153, thereby ensuring the continuous movement of the conveyor belt 159, and the plastic waste is transported through the conveyor belt 159;

As the conveyor belt 159 moves, the turntable 1510 will also rotate with it through the rotation of the second rotating rod 157. The rotation of the turntable 1510 drives the second turntable 210 to rotate through the turntable transmission track 211. The rotation of the second turntable 210 causes the rotating rod 27 and the push-pull rod 212 to reciprocate through the rotating shaft 26. The reciprocating motion of the push-pull rod 212 will drive the pressure block 213 to move up and down in the slide groove of the slide groove plate 21. Through the up and down movement of the pressure block 213, the T-shaped pressure plate 214 will effectively compress the plastic waste on the conveyor belt 159, making the plastic waste become more compact and concentrated during the transmission process. The compressed plastic waste is not only convenient for subsequent processing by the crusher due to its smaller volume and increased density, but also can improve the crushing efficiency and reduce energy consumption.

As shown in Figures 6-7, the feeding mechanism 3 includes a feeding mechanism conveying platform 31, a discharge frame 33 is fixedly connected to the top rear side of the feeding mechanism conveying platform 31, a feeding funnel 32 is fixedly connected to the front side of the feeding mechanism conveying platform 31, the top of the discharge frame 33 is aligned with the bottom of the inclined slide 13, and the bottom of the discharge frame 33 is a hollow design. The crusher 4 includes a crusher body 41, and the left and right sides of the crusher body 41 are respectively fixedly connected with connecting cross bars 42, and the tops of the two connecting cross bars 42 are fixedly connected with multiple connecting vertical bars 43, and the multiple connecting The opposite sides of the connecting vertical rod 43 are respectively fixedly connected to the left and right sides of the conveying platform 31 of the feeding mechanism, the rear bottoms of the two connecting cross bars 42 are fixedly connected with the second connecting vertical rods 44, the opposite sides of the two second connecting vertical rods 44 are fixedly connected with the second connecting cross bars 45, and the opposite front sides of the two second connecting cross bars 45 are fixedly connected with the storage bin 46, the top of the storage bin 46 is a hollow design, and the top of the storage bin 46 is aligned with the discharge port provided at the bottom of the crusher body 41, and the top and bottom of the crusher body 41 are both hollow designs;

When the plastic waste passes through the transmission platform 15, due to the rotation of the rollers 154 and the diamond rollers 158, the waste will be transported to the inclined slide plate 13. Due to the inclined design of the inclined slide plate 13, the waste will smoothly slide into the discharge frame 33 of the feeding mechanism 3. At the same time, since the bottom of the discharge frame 33 is a hollow design, the plastic waste will enter the feeding funnel 32 through the hollow part, and under the action of gravity, guided by the feeding funnel 32, gradually flow into the crushing area of the crusher body 41;

The crusher body 41 is provided with efficient crushing blades and a high-speed rotating crushing shaft. When the plastic waste enters the crushing area, the crushing blades will quickly cut and crush the waste, breaking it into smaller particles. These crushed plastic particles will be discharged through the discharge port at the bottom of the crusher body 41 and directly enter the storage bin 46.

The top of the storage bin 46 is tightly connected to the discharge port of the crusher body 41 to ensure that the crushed plastic particles can smoothly enter the storage bin 46. The capacity of the storage bin 46 is reasonably designed to store a certain amount of crushed plastic particles, which is convenient for subsequent processing and transportation.

During the entire process of recycling and crushing the plastic waste, the close cooperation between the crusher body 41, the feeding mechanism 3 and the transmission platform 15 ensures the efficiency and smoothness of the entire recycling and crushing process.

Working principle of the present invention: when it is necessary to recycle and crush plastic waste, first start the motor 155, the output end of the motor 155 drives the rotating rod 153 to rotate, and the roller 154 on the rotating rod 153 rotates accordingly. At the same time, since the turntable 1510 is connected to the rotating rod 153 through the conveyor belt 159, the diamond roller 158 on the second rotating rod 157 will also rotate with the rotation of the rotating rod 153, thereby ensuring the continuous movement of the conveyor belt 159, and the plastic waste is transported through the conveyor belt 159. With the movement of the conveyor belt 159, the turntable 1510 will also rotate through the rotation of the second rotating rod 157, and the rotation of the turntable 1510 The second turntable 210 is driven to rotate through the turntable transmission crawler 211, and the rotation of the second turntable 210 makes the rotating rod 27 and the push-pull rod 212 produce reciprocating motion through the rotating shaft 26. The reciprocating motion of the push-pull rod 212 will drive the pressing block 213 to move up and down in the chute of the chute plate 21. Through the up and down movement of the pressing block 213, the T-shaped pressing plate 214 will effectively compress the plastic waste on the conveyor belt 159, so that the plastic waste becomes more compact and concentrated during the transmission process. The compressed plastic waste is not only convenient for subsequent crushing due to its reduced volume and increased density, but also can improve crushing efficiency and reduce energy consumption;

When the plastic waste passes through the transmission platform 15, due to the rotation of the roller 154 and the diamond roller 158, the waste will be conveyed to the inclined slide 13. Due to the inclined design of the inclined slide 13, the waste will slide smoothly into the discharge frame 33 of the feeding mechanism 3. At the same time, since the bottom of the discharge frame 33 is a hollow design, the plastic waste will enter the feeding funnel 32 through the hollow part, and under the action of gravity, guided by the feeding funnel 32, it will gradually flow into the crushing area of the crusher body 41. The crusher body 41 is provided with an efficient crushing blade and a high-speed rotating crushing shaft. When the plastic waste enters the crushing area, the crushing blade will crush the waste. Rapid cutting and crushing will break it down into smaller particles. These crushed plastic particles will be discharged through the discharge port at the bottom of the crusher body 41 and directly enter the storage bin 46. The top of the storage bin 46 is tightly connected with the discharge port of the crusher body 41 to ensure that the crushed plastic particles can smoothly enter the storage bin 46. The capacity of the storage bin 46 is reasonably designed to store a certain amount of crushed plastic particles, which is convenient for subsequent processing and transportation. During the entire plastic waste recycling and crushing process, the crusher body 41 works closely with the feeding mechanism 3 and the transmission platform 15 to ensure the efficiency and smoothness of the entire recycling and crushing process.

Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. A crushing device for recycling plastic waste, comprising a conveying platform (1), characterized in that: a pressing mechanism (2) is fixedly connected to the top of the conveying platform (1), a crusher (4) is fixedly connected to the front side of the conveying platform (1), and a feeding mechanism (3) is fixedly connected to the rear side of the crusher (4); The conveyor platform (1) comprises two conveyor platform connecting legs (11), the tops of the two conveyor platform connecting legs (11) are fixedly connected to a conveyor platform (12), the front side of the conveyor platform (12) is fixedly connected to an inclined slide plate (13), the rear side of the right side of the conveyor platform (12) is fixedly connected to a motor placement block (14), and the top of the conveyor platform (12) is fixedly connected to a transmission platform (15). 2. A crushing device for recycling plastic waste according to claim 1, characterized in that: the transmission platform (15) includes two transmission platform side plates (151), the rear sides of the two transmission platform side plates (151) are respectively fixedly connected with a rotating rod connecting plate (152), the inner walls of the two rotating rod connecting plates (152) are rotatably connected with a rotating rod (153), the outer wall of the rotating rod (153) is fixedly connected with a rotating roller (154), and the right end of the rotating rod (153) extends to the outer wall of the right rotating rod connecting plate (152) and is fixedly connected with a motor (155). 3. A crushing device for recycling plastic waste according to claim 2, characterized in that: the right end of the rotating rod (153) is fixedly connected to the output end of the motor (155), the bottom of the motor (155) is fixedly connected to the top of the motor placement block (14), the front sides of the two rotating rod connecting plates (152) are fixedly connected to the second rotating rod connecting plates (156), the inner walls of the two second rotating rod connecting plates (156) are rotatably connected to the second rotating rods (157), the second rotating rod (157) is fixedly connected to the outer walls of the opposite sides of the two second rotating rod connecting plates (156), the left end of the second rotating rod connecting plate (156) penetrates to the outer wall of the left second rotating rod connecting plate (156) and is fixedly connected to the turntable (1510), and the outer wall of the diamond-shaped roller (158) and the outer wall of the roller (154) are covered with a conveyor belt (159). 4. A crushing device for recycling plastic waste according to claim 3, characterized in that: the opposite surfaces of the two transmission platform side plates (151) are fixedly connected with a pressing mechanism connecting plate (1511). 5. A crushing device for recycling plastic waste according to claim 1, characterized in that: the pressing mechanism (2) comprises two slide plates (21), the opposite surfaces of the two slide plates (21) are respectively fixedly connected to the top of the opposite surfaces of the two pressing mechanism connecting plates (1511), the opposite inner walls of the two slide plates (21) are respectively slidably connected with sliding rods (22), the opposite surfaces of the two sliding rods (22) are fixedly connected with a pressing block (213), and the bottom of the pressing block (213) is fixedly connected with a T-shaped pressing plate (214). 6. A crushing device for recycling plastic waste according to claim 5, characterized in that: a C-shaped connecting rod (23) is fixedly connected to the top right side of the right side slide plate (21), and an inverted U-shaped connecting plate (24) is fixedly connected to the side of the C-shaped connecting rod (23) away from the right side slide plate (21), and the left and right sides of the bottom of the inverted U-shaped connecting plate (24) are respectively fixedly connected to a rotating shaft connecting block (25), and the opposite surfaces of the two rotating shaft connecting blocks (25) are rotatably connected to the rotating shaft (26), and the outer walls of the two rotating shafts (26) are fixedly connected to the rotating rods (27), and the opposite surfaces of the two rotating rods (27) are rotatably connected to the push-pull rod rotating shaft (28), and the outer wall of the push-pull rod rotating shaft (28) is fixedly connected to the push-pull rod (212), and the bottom of the push-pull rod (212) is rotatably connected to the top of the pressing block (213). 7. A crushing device for recycling plastic waste according to claim 6, characterized in that: the left end of the left rotating shaft (26) passes through the left side of the left rotating shaft connecting block (25) and is fixedly connected to the second rotating disk (210), and the outer wall of the second rotating disk (210) is sleeved with a rotating disk transmission crawler (211), and the inner wall of the side of the rotating disk transmission crawler (211) away from the second rotating disk (210) is sleeved on the outer wall of the rotating disk (1510). 8. A crushing device for recycling plastic waste according to claim 1, characterized in that: the feeding mechanism (3) includes a feeding mechanism conveying platform (31), a discharge frame (33) is fixedly connected to the top rear side of the feeding mechanism conveying platform (31), a feeding funnel (32) is fixedly connected to the front side of the feeding mechanism conveying platform (31), the top of the discharge frame (33) is aligned with the bottom of the inclined slide plate (13), and the bottom of the discharge frame (33) is hollowed out. 9. A crushing device for recycling plastic waste according to claim 1, characterized in that: the crusher (4) comprises a crusher body (41), the left and right sides of the crusher body (41) are respectively fixedly connected with connecting cross bars (42), the tops of the two connecting cross bars (42) are fixedly connected with a plurality of connecting vertical bars (43), and the opposite sides of the plurality of connecting vertical bars (43) are respectively fixedly connected to the left and right sides of the conveying platform (31) of the feeding mechanism. 10. A crushing device for recycling plastic waste according to claim 9, characterized in that: the rear bottoms of the two connecting cross bars (42) are fixedly connected to the second connecting vertical bars (44), the opposite surfaces of the two second connecting vertical bars (44) are fixedly connected to the second connecting cross bars (45), and the opposite front sides of the two second connecting cross bars (45) are fixedly connected to the storage bin (46), the top of the storage bin (46) is hollowed out, the top of the storage bin (46) is aligned with the discharge port provided at the bottom of the crusher body (41), and the top and bottom of the crusher body (41) are both hollowed out.