Crushing and recycling equipment for plastic leftover materials

Abstract

The smashing and recycling equipment comprises a smashing machine body, the smashing machine body has the moving capacity, and the interior of the smashing machine body is arranged in a communicating mode from top to bottom; the smashing structure is composed of a plurality of parts, is assembled in the smashing machine body from top to bottom, is in transmission connection with the smashing machine body through a transmission toothed belt and is used for being matched with the smashing machine body to smash the plastic; through the arrangement of the crushing machine body and the crushing structure, plastic can be sequentially subjected to pre-crushing, extrusion shearing crushing and high-speed rotary cutting crushing treatment, so that the plastic is quickly crushed into particles meeting the requirements, the shearing requirements of most of the plastic are met, the recovery efficiency is improved, the recovery cost and complexity are reduced, cooling liquid can be driven to flow, and the cooling effect is improved. The rotary cutter is sequentially subjected to heat absorption and cooling, the hot drying block is heated, heat-sensitive plastic is prevented from being affected, static electricity is reduced, meanwhile, the plastic is dried, moisture of the water-absorbing plastic is reduced, and the smashing efficiency and effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of material recycling, in particular to a crushing and recycling device for plastic scraps. Background Art

[0002] Plastic scraps refer to the remaining scraps generated during the production and processing of plastic products. They can be recycled and reused, and then processed into new plastic products or other products to reduce resource waste and environmental pollution. Common plastic scrap recycling methods include crushing, cleaning, melting and re-granulation. Among them, the current plastic scrap crushing and recycling equipment still has some limitations when recycling plastic scraps.

[0003] Different types of plastics, such as heat-sensitive plastics, elastic plastics, and water-absorbing plastics, have different physical and chemical properties. During the crushing process, these plastics require different processing conditions and equipment parameters. For example, heat-sensitive plastics are easily deformed or decomposed at high temperatures, and low-temperature crushing or special cooling devices are required; elastic plastics have high elasticity and toughness, and are easy to rebound during the crushing process, making them difficult to crush into fine particles, and special tools or crushing methods are required; water-absorbing plastics may absorb moisture before crushing, affecting the crushing effect and subsequent recycling processing, and require pre-drying or special crushing processes. Therefore, in order to effectively crush and recycle different types of plastic scraps, different crushing equipment is often required, which undoubtedly increases the cost and complexity of recycling and reduces the value of plastic recycling.

[0004] Therefore, a crushing and recycling device for plastic scraps is proposed. Summary of the invention

[0005] The object of the present invention is to provide a crushing and recycling device for plastic scraps to solve the problem of high recycling cost of the crushing and recycling device for plastic scraps proposed in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a crushing and recycling device for plastic scraps, comprising:

[0007] The crushing machine body has the ability to move, and its interior is connected from top to bottom;

[0008] The crushing structure is composed of multiple parts, and is assembled inside the crushing machine body from top to bottom, and is connected to each other through a transmission toothed belt, and is used to cooperate with the crushing machine body to crush the plastic;

[0009] The pulverizer body comprises a pulverizer box, a heat-drying block is fixedly arranged above the pulverizer box, a spiral conveying channel is provided inside the heat-drying block, and staggered hot water channels are provided inside the heat-drying block and around the spiral conveying channel;

[0010] The pulverizing structure comprises a shredding roller group, a conical conveying screw belt is rotatably arranged inside the spiral conveying channel below the shredding roller group, a pulverizing box is arranged below the conical conveying screw belt, a pulverizing bin is arranged inside the pulverizing box, and a circle of fixed tooth plates are fixed inside the pulverizing bin, a filter screen connected to the pulverizing bin is arranged below the side of the pulverizing box at the position of the pulverizing bin, water drive chambers connected to the pulverizing bin are arranged at both ends inside the pulverizing box, and sliding grooves are arranged inside the pulverizing box corresponding to the gaps between the fixed tooth plates, and press-insertion plates are slidably arranged inside the sliding grooves. The press-insertion block and the cutting block grid are integrally connected with a limiting spring rod near the center position of the end face of the water-displacing chamber, and the sliding limitation inside the sliding groove is performed by the limiting spring rod, one end of the limiting spring rod is always in active contact with the floating drive ring body, the floating drive ring bodies are fixed to the end face of the water wheel, the water wheel is sealed and rotatably arranged in the water-displacing chamber, and a plurality of rotary cutters are fixed between the two water wheels, the two water-displacing chambers are connected by a circulation pipeline, and the two water-displacing chambers are respectively connected to the input interface and the output interface of the displaced hot water channel through the circulation pipeline.

[0011] Preferably, the upper surface of the crusher box is fixed to the feed port by bolts, the lower part of the feed port is funnel-shaped, which is wide at the top and narrow at the bottom, and a square hole connected to the feed port is provided at the center position of the upper surface of the crusher box corresponding to the lower end of the funnel.

[0012] Preferably, the upper and lower ends of the offset hot water channel are respectively provided with interfaces penetrating to the heat drying block and the outside of the crushing machine box, and the interior of the crushing machine box is sequentially connected below the heat drying block and is provided with a collection trough for collecting pretreated plastics, an assembly hole for assembling a crushing structure, and a discharge channel for discharging materials, wherein the collection trough is an arc-shaped groove, both ends of the assembly hole are openly connected to the crushing machine box, and one end of the discharge channel is openly connected to the crushing machine box.

[0013] Preferably, the shredding roller group is composed of two roller bodies that mesh with each other and drive each other, and the surface of each roller body is provided with teeth for shredding and shearing the plastic, and is rotatably arranged at the square hole above the inside of the shredder box.

[0014] Preferably, a right-angle coupling assembly is installed on the upper end of the conical conveying screw belt shaft, and the right-angle coupling assembly consists of a coupling and a shaft body for driving, wherein the coupling is fixedly arranged above the inside of the crushing machine box, and the shaft body is connected to the conical conveying screw belt through the coupling, and the lower end of the conical conveying screw belt spirally penetrates the spiral conveying channel to the inside of the aggregate trough, and the crushing box is fixedly arranged inside the matching hole position.

[0015] Preferably, a through feeding hole is provided on the upper surface of the crushing box at a position corresponding to the crushing bin, the width of the feeding hole is greater than the spacing between the fixed tooth plates, and the sliding grooves are also provided at both ends of the feeding hole.

[0016] Preferably, the contact surface of the floating drive ring body has a specified undulation height, and there are two layers of corresponding pressing blocks and cutting grids, and the two layers of floating drive ring bodies are sleeved, and the knife group composed of the rotary cutter is equipped with a baffle to block the crushed plastic, and the surface of the crushing box is provided with input and output interfaces at specified positions of the two water-displacement chambers.

[0017] Preferably, an output screw rod is rotatably arranged inside the discharge channel below the pulverizing box, and the shredding roller group, right-angle coupling assembly, pulverizing box and one end of the output screw rod all pass through the pulverizing machine box, and at least one toothed belt wheel is arranged at the passing end, and the toothed belt wheels are connected by toothed belts in a specified manner.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can perform pre-crushing, extrusion shearing crushing and high-speed rotary cutting crushing on the input plastic from top to bottom in sequence through the arrangement of a crusher box, a feed port, a hot baking block, a spiral conveying channel, a tearing roller group, a conical conveying spiral belt, a crushing box, a crushing bin, a fixed tooth plate, a filter screen, a sliding groove, a water-discharging chamber, a crushing box, a cutting grid, a limiting spring rod, a rotary cutter, a floating drive ring body and an output spiral belt rod, so that the plastic can be quickly and efficiently crushed into a particle size that meets the requirements. At the same time, the working mode of pre-crushing, extrusion shearing and high-speed rotary cutting can meet the shearing needs of most plastics. Compared with the current recycling mode of selecting different crushers according to different plastics, the recycling efficiency of plastics will be greatly improved, which is more conducive to reducing the cost and complexity of plastic recycling and greatly improving the value of plastic recycling;

[0020] 2. The present invention can drive and push the cooling liquid inside the offset hot water channel, the water drive chamber and the circulation pipeline through the arrangement of the hot drying block, the offset hot water channel, the conical conveying screw belt, the crushing box, the water drive chamber, the circulation pipeline, the rotary cutter and the water wheel under the drive of an external driving mechanism, so that the cooling liquid flows uniformly along the connecting path of the offset hot water channel, the water drive chamber and the circulation pipeline, and in the process of flowing, the heat absorption and cooling of the rotary cutter and the heating of the hot drying block are successively performed, so that not only the influence of the heat accumulation inside the rotary cutter and the crushing bin on the heat-sensitive plastic can be avoided by cooling, the generation of static electricity in the crushing process can be reduced, and the safety of the plastic crushing process can be improved, but also the plastic conveyed by the conical conveying screw belt can be dried before crushing, the water content in the water-absorbing plastic can be reduced, and the efficiency and effect of plastic crushing can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural view of the present invention;

[0022] Figure 2 It is an overall cross-sectional view of the present invention;

[0023] Figure 3 is a cross-sectional view of a pulverizer body of the present invention;

[0024] Figure 4 It is a schematic diagram of the crushing structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the crushing box and its connection structure of the present invention;

[0026] Figure 6 It is a cross section of the crushing box of the present invention and a schematic diagram of its internal structure;

[0027] Figure 7 It is a radial cross-sectional view of the crushing box of the present invention;

[0028] Figure 8 is a cross-sectional view of a crushing box of the present invention;

[0029] Fig. 9 It is a schematic diagram of the compression block and the block cutting grid of the present invention;

[0030] Fig.10 It is a schematic diagram of the rotary cutter and its integrated structure of the present invention;

[0031] Fig.11 It is a schematic diagram of the conical conveying spiral belt of the present invention.

[0032] In the figure:

[0033] 1. Crusher body; 11. Crusher box; 111. Collecting trough; 112. Assembly hole; 113. Discharge channel; 12. Feed inlet; 13. Hot baking block; 131. Screw conveying channel; 132. Displaced hot water channel;

[0034] 2. Crushing structure; 21. Shredding roller group; 22. Conical conveying screw belt; 221. Right-angle coupling assembly; 23. Crushing box;

[0035] 231, crushing chamber; 232, fixed tooth plate; 233, filter screen; 234, sliding groove; 235, water driving chamber; 236, pressing block;

[0036] 237, cutting grid; 238, limiting spring rod; 239, circulation pipeline; 24, rotary cutter; 241, water wheel; 242, floating drive ring; 25, output screw rod. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figures 1 to 11 The present invention provides a technical solution for a crushing and recycling device for plastic scraps:

[0039] A crushing and recycling device for plastic scraps, comprising:

[0040] The pulverizer body 1 is capable of moving, and its interior is connected from top to bottom;

[0041] The crushing structure 2 is composed of multiple parts and is assembled inside the crushing machine body 1 from top to bottom. The crushing structure 2 is connected to each other through a transmission belt and is used to cooperate with the crushing machine body 1 to crush the plastic.

[0042] The pulverizer body 1 includes a pulverizer box 11, the upper surface of which is fixed to a feed port 12 by bolts, the lower part of the feed port 12 is in the shape of a funnel that is wide at the top and narrow at the bottom, and a square hole communicating with the feed port 12 is provided at the center of the upper surface of the pulverizer box 11 corresponding to the lower end of the funnel, and a heat-drying block 13 is fixedly arranged at intervals just below the square hole in the pulverizer box 11, and a spiral conveying channel 131 of a cone shape extending from top to bottom is provided in the heat-drying block 13, and a spiral conveying channel 131 is provided in the heat-drying block 13 on the circumference of the spiral conveying channel 131. An offset hot water channel 132 is provided, and interfaces penetrating to the outside of the heat drying block 13 and the crushing box 11 are respectively provided at the upper and lower ends of the offset hot water channel 132. The interior of the crushing box 11 is connected in sequence below the heat drying block 13 with a collection trough 111 for collecting pre-treated plastics, an assembly hole 112 for assembling the crushing structure 2, and a discharge channel 113 for discharging materials, wherein the collection trough 111 is an arc-shaped groove, both ends of the assembly hole 112 are openly arranged through the crushing box 11, and one end of the discharge channel 113 is openly arranged through the crushing box 11.

[0043] The pulverizing structure 2 includes a shredding roller group 21, which is composed of two roller bodies that mesh with each other and are driven by each other, and the surface of each roller body is provided with teeth for shredding and shearing plastics, and is rotatably arranged at a square hole above the inside of the pulverizer box 11, and a conical conveying screw belt 22 is rotatably arranged inside the spiral conveying channel 131 below the shredding roller group 21, and a right-angle coupling assembly 221 is installed on the upper end of the axis of the conical conveying screw belt 22, and the right-angle coupling assembly 221 is composed of a coupling and a shaft body for driving, wherein the coupling is fixedly arranged above the inside of the pulverizer box 11, and the shaft body is transmission-connected to the conical conveying screw belt 22 through the coupling, and the lower end of the conical conveying screw belt 22 spirally penetrates the spiral conveying channel 131 to the inside of the aggregate trough 111, and a pulverizing box 23 is fixedly arranged inside the assembly hole 112 below the conical conveying screw belt 22, and a finger is provided inside the pulverizing box 23 A crushing bin 231 of a certain size is provided, and a circle of fixed tooth plates 232 are fixed along the axis core annular array on the core-leaving side of the crushing bin 231, and a through feeding hole is provided on the upper surface of the crushing box 23 at the position corresponding to the crushing bin 231, and the width of the feeding hole is greater than the spacing between the fixed tooth plates 232, and a filter screen 233 connected to the crushing bin 231 is provided at the position of the crushing bin 231 below the side of the crushing box 23, and water drive chambers 235 connected to the crushing bin 231 are provided at both ends of the crushing box 23, and water wheels 241 are respectively and sealedly rotatably arranged in the water drive chambers 235 provided at both ends of the crushing box 23, and a plurality of rotary cutters 24 are fixed along the axis core annular array of the floating drive ring body 242 by bolts between the two water wheels 241, and the rotary cutters 24 are located at the axis core position of the floating drive ring body 242, and a baffle for blocking the crushed plastic is arranged on the knife group composed of the rotary cutters 24;

[0044] The surface of the crushing box 23 is provided with input and output interfaces at designated positions of the two water-displacing chambers 235, and the two water-displacing chambers 235 are connected through a circulation pipeline 239 with a heat dissipation function, and the two water-displacing chambers 235 are respectively connected to the input interface and the output interface of the offset hot water channel 132 through the circulation pipeline 239, and an output screw rod 25 is rotatably arranged inside the discharge channel 113 below the crushing box 23, and the tearing roller group 21, the right-angle coupling assembly 221, the crushing box 23 and one end of the output screw rod 25 all pass through the crusher box 11, and at least one toothed belt wheel is arranged at the passing end, and the toothed belt wheels are connected by a toothed belt in a designated manner.

[0045] During operation, plastic is put into the feed port 12, falls to the shredding roller group 21 for pre-processing, becomes short pieces or fragments, and then falls to the conical conveying screw belt 22, and then falls into the collecting trough 111 and the crushing bin 231 of the crushing box 23. When the plastic falls, the floating driving ring body 242 pushes the limiting spring rod 238, so that the pressing block 236 and the cutting grid 237 squeeze and shear the plastic. The sheared plastic is further crushed by the rotary cutter 24, and then after secondary extrusion and shearing, it passes through the filter screen 233 and falls into the discharge channel 113, and finally is discharged by the output screw belt rod 25.

[0046] In summary, through the arrangement of the crusher box 11, the feed port 12, the hot baking block 13, the spiral conveying channel 131, the tearing roller group 21, the conical conveying spiral belt 22, the crushing box 23, the crushing bin 231, the fixed tooth plate 232, the filter screen 233, the sliding groove 234, the water driving chamber 235, the crushing box 23, the cutting grid 237, the limiting spring rod 238, the rotary cutter 24, the floating drive ring body 242 and the output spiral belt rod 25, the input plastic can be subjected to pre-crushing treatment, extrusion shearing crushing treatment and high-speed rotary cutting crushing treatment from top to bottom in sequence, so that the plastic can be quickly and efficiently crushed into particles of a size that meets the requirements. At the same time, the working mode of pre-crushing, extrusion shearing and high-speed rotary cutting can meet the shearing needs of most plastics. Compared with the current recycling mode of selecting different crushers according to different plastics, the recycling efficiency of plastics will be greatly improved, which is more conducive to reducing the cost and complexity of plastic recycling and greatly improving the value of plastic recycling.

[0047] As an embodiment of the present invention, Figure 6 , Figure 7 and Fig. 9As shown, the inside of the crushing box 23 is provided with a sliding groove 234 along the axis ring array at the circumferential side of the channel communicating between the crushing bin 231 and the water-displacing chamber 235, corresponding to the gap between the fixed tooth plates 232, and sliding grooves 234 are also provided at both ends of the feed through hole. A pressing block 236 and a cutting grid 237 are respectively slidably arranged inside the sliding groove 234, and the pressing block 236 and the cutting grid 237 are integrally connected with a limiting spring rod 238 near the center position of the end face of the water-displacing chamber 235, and through the limiting The spring rod 238 is limited in sliding inside the sliding groove 234, and a rolling ball is set on the movable end of the spring rod 238, and the rolling ball is always in active contact with the floating drive ring body 242. The contact surface of the floating drive ring body 242 has a specified undulation height, and there are two layers corresponding to the pressing block 236 and the cutting block frame 237, and the two layers of floating drive ring bodies 242 are sleeved, and the floating drive ring bodies 242 corresponding to the pressing block 236 and the cutting block frame 237 are fixed on the end face of the water wheel 241.

[0048] During the crushing process, the water wheel 241 drives the coolant to absorb the heat generated by the rotary cutter 24 for heat exchange and cooling. After absorbing heat, the coolant enters the circulation pipeline 239 and then enters the offset hot water channel 132 to exchange heat with the hot drying block 13, thereby raising the temperature of the hot drying block 13 and drying the pre-treated plastic.

[0049] In summary, through the arrangement of the hot drying block 13, the offset hot water channel 132, the conical conveying screw belt 22, the crushing box 23, the water driving chamber 235, the circulation pipeline 239, the rotary cutter 24 and the water wheel 241, the cooling liquid inside the offset hot water channel 132, the water driving chamber 235 and the circulation pipeline 239 can be driven and pushed by the external driving mechanism, so that it flows at a uniform speed along the connecting path of the offset hot water channel 132, the water driving chamber 235 and the circulation pipeline 239, and in the process of flowing, the heat absorption and cooling of the rotary cutter 24 and the heating of the hot drying block 13 are successively performed, so that not only can the influence of the heat accumulation inside the rotary cutter 24 and the crushing bin 231 on the heat-sensitive plastic be avoided by cooling, the generation of static electricity during the crushing process can be reduced, and the safety of the plastic crushing process can be improved, but also the plastic conveyed by the conical conveying screw belt 22 can be dried before crushing, the moisture contained in the water-absorbing plastic can be reduced, and the efficiency and effect of plastic crushing can be improved.

[0050] Working principle: When working, first push the crushing and recycling device to the specified position, and connect the device to the driving mechanism through a toothed belt, then put the plastic to be crushed and recycled into the inside of the feed port 12, and the plastic will fall along the feed port 12 to between the shredding roller group 21. At this time, the rotating shredding roller group 21 will pre-process the plastic by shearing and shredding before crushing, so that it will be transformed into short pieces or fragments that are more conducive to crushing, and then the pre-processed plastic will fall onto the surface of the conical conveying screw belt 22, and fall into the inside of the collecting trough 111 under the conveyance of the rotating conical conveying screw belt 22, and then the plastic will The plastic falls into the crushing bin 231 inside the crushing box 23 through the collecting trough 111. During the falling process, the plastic will first pass through the feeding port on the surface of the crushing box 23 and the gap between the fixed tooth plate 232. At this time, the floating driving ring 242 driven by the driving mechanism will push the limiting spring rod 238 to slide along the specified path of the sliding groove 234. The sliding limiting spring rod 238 will push the pressing block 236 and the cutting grid 237 to move toward each other, and push the plastic through the shearing mesh of the cutting grid 237 in an extruded manner, thereby realizing the extrusion and shearing of the plastic in the falling process, and the sheared plastic will fall. The rotary cutter 24 rotates at a high speed, and then the falling plastic is further crushed. At the same time, during the crushing process, the water wheel 241 driven by the driving mechanism will actively pull and drive the cooling liquid, and the cooling liquid entering the water wheel 241 will absorb the heat generated during the crushing process of the rotary cutter 24, effectively exchanging heat and cooling the rotary cutter 24, and the temperature of the heat-absorbing cooling liquid increases, and is pushed into the interior of the circulation pipeline 239 under the drive of the water wheel 241, and then the heat-absorbing cooling liquid will enter the dislocated hot water channel 132 along the circulation pipeline 239. The plastic material is heated inside and flows upward in a spiral along the path of the offset hot water channel 132. During the flow, it exchanges heat with the hot drying block 13, causing the hot drying block 13 to heat up rapidly. The heated hot drying block 13 will dry the pre-treated plastic conveyed by the conical conveying screw belt 22 before crushing, thereby minimizing the moisture contained in the plastic, which is more conducive to the rapid crushing of the water-absorbing plastic. Then the crushed plastic will continue to fall, and after secondary extrusion and shearing, it will pass through the filter screen 233 and fall into the interior of the discharge channel 113. Then the rotating output screw belt rod 25 will output the crushed plastic, thereby realizing the crushing and recycling of the plastic.

[0051] It should be noted that the filter screen 233 can be extended according to the crushing effect so that its plate surface is flush with the fixed tooth plate 232; the cooling liquid can be any one of water, cooling oil, etc. according to needs.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crushing and recycling device for plastic scraps, It is characterized in that include: The pulverizing machine body (1) is capable of moving, and its interior is connected from top to bottom; The pulverizing structure (2) is composed of a plurality of parts and is assembled from top to bottom inside the pulverizing machine body (1) and is connected to each other through a transmission toothed belt, so as to cooperate with the pulverizing machine body (1) to pulverize the plastic; The pulverizer body (1) comprises a pulverizer box (11), a heat block (13) is fixedly arranged above the pulverizer box (11), a spiral conveying channel (131) is provided inside the heat block (13), and offset hot water channels (132) are provided inside the heat block (13) and around the spiral conveying channel (131); The pulverizing structure (2) comprises a shredding roller group (21), a conical conveying screw belt (22) is rotatably arranged inside the spiral conveying channel (131) below the shredding roller group (21), a pulverizing box (23) is arranged below the conical conveying screw belt (22), a pulverizing bin (231) is arranged inside the pulverizing box (23), and a circle of fixed tooth plates (232) are fixed inside the pulverizing bin (231), a filter screen (233) connected to the pulverizing bin (231) is arranged below the side of the pulverizing box (23) at the position of the pulverizing bin (231), water-discharging chambers (235) connected to the pulverizing bin (231) are arranged at both ends inside the pulverizing box (23), and a sliding groove (234) is arranged inside the pulverizing box (23) corresponding to the gap between the fixed tooth plates (232), and a pressing block (232) is slidably arranged inside the sliding groove (234) The water drive chamber (235) is provided with a plurality of water wheels (241) and a plurality of rotary cutters (24). The plurality of rotary cutters (24) are provided with ...

2. A crushing and recycling device for plastic scraps according to claim 1, Features: The upper surface of the crusher box (11) is fixed to the feed port (12) by bolts, and the lower part of the feed port (12) is in the shape of a funnel that is wide at the top and narrow at the bottom, and a square hole communicating with the feed port (12) is provided at the center position of the upper surface of the crusher box (11) corresponding to the lower end of the funnel.

3. A crushing and recycling device for plastic scraps according to claim 1, Features: The upper and lower ends of the offset hot water channel (132) are respectively provided with interfaces that penetrate to the outside of the heat drying block (13) and the crushing box (11); the interior of the crushing box (11) is connected below the heat drying block (13) and is provided with a collection trough (111) for collecting pre-treated plastics, an assembly hole (112) for assembling the crushing structure (2), and a discharge channel (113) for discharging materials, wherein the collection trough (111) is an arc-shaped groove, the two ends of the assembly hole (112) penetrate the crushing box (11) and are openly arranged, and one end of the discharge channel (113) penetrates the crushing box (11) and is openly arranged.

4. A crushing and recycling device for plastic scraps according to claim 1, Features: The shredding roller group (21) is composed of two roller bodies that mesh with each other and drive each other, and the surface of each roller body is provided with teeth for shredding and shearing plastics, and is rotatably arranged at a square hole above the inside of the pulverizer box (11).

5. A crushing and recycling device for plastic scraps according to claim 1, Features: A right-angle coupling assembly (221) is installed at the upper end of the axis of the conical conveying screw belt (22), and the right-angle coupling assembly (221) consists of a coupling and an axis for driving, wherein the coupling is fixedly arranged above the inside of the crushing machine box (11), and the axis is connected to the conical conveying screw belt (22) through the coupling. The lower end of the conical conveying screw belt (22) spirally penetrates the spiral conveying channel (131) to the inside of the collecting trough (111), and the crushing box (23) is fixedly arranged inside the matching hole position (112).

6. A crushing and recycling device for plastic scraps according to claim 1, Features: The upper surface of the crushing box (23) is provided with a through feeding hole at a position corresponding to the crushing bin (231), the width of the feeding hole is greater than the spacing between the fixed tooth plates (232), and the sliding grooves (234) are also provided at both ends of the feeding hole.

7. A crushing and recycling device for plastic scraps according to claim 1, Features: The contact surface of the floating drive ring body (242) has a specified undulating height, and the corresponding pressing block (236) and the block cutting grid (237) are provided with two layers in total, and the two layers of floating drive ring bodies (242) are sleeved, and the knife group composed of the rotary cutter (24) is provided with a baffle for blocking the crushed plastic, and the surface of the crushing box (23) is provided with input and output interfaces at specified positions of the two water-discharging chambers (235).

8. A crushing and recycling device for plastic scraps according to claim 1, Features: An output screw rod (25) is rotatably arranged inside the discharge channel (113) below the crushing box (23); the tearing roller group (21), the right-angle coupling assembly (221), the crushing box (23) and one end of the output screw rod (25) all pass through the crushing machine box (11), and at least one toothed belt wheel is arranged at the passing end, and the toothed belt wheels are connected to each other through a toothed belt in a specified manner.

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