Waste recycling device for plastic processing

Abstract

The invention relates to the technical field of plastic waste recycling, in particular to a waste recycling device for plastic processing. Comprising a machining table, the top end of the machining table is provided with a feeding conveying belt used for conveying waste to be treated, the machining table is provided with a treatment bin, a feeding groove is formed in the side, close to the feeding conveying belt, of the treatment bin, and a circulating screening mechanism used for screening the crushed waste is arranged in the treatment bin; waste materials to be treated are fed into the feeding hopper through the feeding conveying belt via the feeding groove, the waste materials are crushed through the crushing mechanism, the crushed waste materials are screened through the circulating screening mechanism, the crushed waste materials are subjected to secondary crushing through the crushing mechanism, and therefore automatic circulating crushing of the waste materials is achieved; manual operation is not needed in the whole process, crushing, screening, secondary crushing and conveying are automatically conducted, the crushing quality is greatly improved, and meanwhile the workload of workers is relieved.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic waste recycling and treatment, and in particular relates to a plastic processing waste recycling device. Background Art

[0002] With the widespread use of plastic products, the amount of plastic waste generated continues to increase. If this plastic waste is not effectively recycled and processed, it will cause serious environmental pollution, such as occupying land and contaminating soil and water bodies. Therefore, efficient recycling and processing equipment is needed to handle large amounts of plastic waste.

[0003] Crushing plastic waste is an important step in recycling. Plastic waste needs to be crushed into fragments that meet processing requirements for further processing. Traditional crushing devices require manual screening of the fragments with a screen after the waste is crushed, and fragments that do not meet the size requirements are crushed again, making the operation more complicated and increasing labor costs. In addition, manual screening will cause a large amount of microplastic particles and dust to float, affecting the health of workers.

[0004] After searching, in the prior art, an authorized patent document with announcement number CN222875070U and announcement date of 2025.05.16 discloses a waste recycling device for the production of plastic woven bags, comprising a bottom plate, a support plate fixedly connected to the top of the bottom plate, a body mounted on the top of the support plate, a dustproof mechanism provided on the top of the body, a crushing mechanism provided inside the body, and a screening mechanism provided below the body. This application relates to the field of waste recycling technology. The waste recycling device for the production of plastic woven bags, by providing a screening assembly, realizes the screening operation of the crushed plastic woven bag fragments, filters the completely crushed fragments through the screening plate, and transports them to the recovery tank through the discharge pipe, facilitating the secondary crushing operation and improving the quality of waste recovery. The screening plate is driven by a driving motor to slide back and forth, thereby accelerating the screening efficiency of the screening plate for the fragments and avoiding the accumulation of fragments in the screening holes to cause blockage.

[0005] However, the device still has the following defects: although the completely crushed fragments can be filtered through the screening plate and transported to the recovery tank through the discharge pipe to facilitate secondary crushing operations, the device can only achieve screening and cannot achieve automatic cycle crushing. It is necessary to manually take out the fragments in the recovery tank and then put them into the device for secondary crushing, which leads to an increase in labor costs. Summary of the Invention

[0006] In response to the above problems, the present invention provides a plastic processing waste recycling device, comprising a processing table, a feed conveyor belt for conveying waste to be processed provided at the top of the processing table, a processing bin provided on the processing table, a feed chute provided on a side of the processing bin close to the feed conveyor belt, and a circulating screening mechanism provided in the processing bin for screening the crushed waste;

[0007] A material discharge chute is provided on the processing table, a material feed hopper is provided just above the material discharge chute, and a crushing mechanism for crushing the waste is provided in the material feed hopper;

[0008] A transmission slot is provided on the processing table, a drive motor is installed in the transmission slot, and an output end of the drive motor is transmission-connected to the crushing mechanism;

[0009] The inner side wall of the processing chamber is also rotatably connected to two sets of transmission gears, and one set of the transmission gears is meshedly connected to an auxiliary rotating part for driving the circulating screening mechanism to rotate;

[0010] The auxiliary rotating part includes a driven gear, which is meshed with a group of transmission gears. A rotating roller is fixedly connected to the center of the driven gear, and a plurality of groups of clamping protrusions are evenly distributed on the rotating roller.

[0011] Furthermore, a material guide portion is provided at the bottom end of the processing table, and a discharge conveyor belt is provided directly below the material guide portion. The material guide portion includes a material guide hopper, a discharge frame and several groups of leveling teeth. The material guide hopper is fixedly connected to the bottom end of the processing table, and the bottom end of the material guide hopper is communicated with the discharge frame. Several groups of the leveling teeth are fixedly connected at the discharge port of the discharge frame, and the bottom ends of several groups of the leveling teeth are movably fitted with the discharge conveyor belt.

[0012] Furthermore, a linkage mechanism is provided on the outer wall of the processing bin and on the side away from the feed conveyor belt. The linkage mechanism includes a driving pulley and a driven pulley. The driving pulley and the driven pulley are both rotatably connected to the outer wall of the processing bin, and the driving pulley and the driven pulley are both provided with a synchronous belt.

[0013] Furthermore, the driven pulley is fixedly connected to a linkage wheel, and the side wall of the linkage wheel is fixedly connected to several groups of first transmission prisms, and the several groups of first transmission prisms are equidistantly distributed. The outer wall of the processing bin is also rotatably connected to a turntable, and one end of the turntable is fixedly connected to several groups of second transmission prisms, and the several groups of second transmission prisms are distributed in a circular array with the central axis of the turntable as the center. The several groups of second transmission prisms and the several groups of first transmission prisms are arranged perpendicular to each other, and the number of the several groups of second transmission prisms is greater than the number of the several groups of first transmission prisms.

[0014] Further, the processing bin is provided with a knocking mechanism, the knocking mechanism comprises a swing shaft, one end of the swing shaft penetrates through the outer wall of the processing bin and is fixedly connected with the center of the rotating disc, a plurality of groups of mounting hoops are fixedly connected on the swing shaft, two groups of swing plates are symmetrically arranged on the plurality of groups of mounting hoops, a knocking hammer is fixedly connected to the bottom end of the two groups of swing plates, a torsional spring is arranged between the rotating disc and the adjacent group of mounting hoops, and the torsional spring is sleeved on the swing shaft.

[0015] Further, the crushing mechanism comprises a driving gear, the center of the driving gear is in transmission connection with the output end of the driving motor, a linkage gear is meshingly connected on the driving gear, the driving gear and the linkage gear are both rotationally connected to the inner side wall of the processing bin, a crushing roller is fixedly connected to the center of the driving gear and the linkage gear, a plurality of groups of crushing teeth are arranged on the two groups of crushing rollers, and the crushing teeth on the two groups of crushing rollers are arranged in intermeshing mode.

[0016] Further, the two groups of transmission gears are intermeshed, and one group of transmission gears is meshingly connected with the linkage gear.

[0017] Further, the circulating screening mechanism comprises an annular screen, a plurality of groups of screen holes are formed in the annular screen, and the plurality of groups of screen holes are matched with a plurality of groups of clamping protrusions.

[0018] Further, one end of the annular screen is fixedly connected with a circular partition plate, the other end of the annular screen is fixedly connected with an annular baffle, and a plurality of groups of interval baffles are uniformly arranged on the inner wall of the annular screen.

[0019] Further, the feeding chute is provided with a turnover guide plate, the discharging chute and the material guide hopper are in communication with each other, and the feeding hopper is arranged directly below the discharging end of the feeding conveying belt.

[0020] The beneficial effects of the present application are:

[0021] 1. The feeding conveying belt sends the waste to be treated into the feeding hopper through the feeding chute, the waste is crushed by the crushing mechanism, the crushed waste is screened by the circulating screening mechanism, the waste meeting the crushing size requirement falls onto the discharging conveying belt for conveying, and the waste pieces with sizes not meeting the preset value stay on the inner side of the annular screen, the annular screen is driven to rotate by the auxiliary rotating mechanism, so that the waste pieces are synchronously rotated to above the feeding hopper, the waste pieces fall into the feeding hopper, and the waste pieces are crushed again by the crushing mechanism, so that the waste is automatically and circularly crushed until the sizes of the processed waste pieces meet the requirements, the whole process does not need manual operation, and the crushing, screening, secondary crushing and conveying are automatically performed, the crushing quality is greatly improved, and the workload of workers is reduced.

[0022] 2. While the crushing mechanism is driven by the driving motor, the two sets of transmission gears rotate synchronously, causing the driven gear to drive the rotating roller to rotate, so that several sets of snap-fitting protrusions close to the side of the annular screen are inserted into the adjacent screen holes, and the rotating roller drives the annular screen to rotate. The same set of driving motors is used to simultaneously realize crushing and annular screen rotation screening, effectively improving the synchronization of crushing and screening. At the same time, the snap-fitting protrusions are inserted into the screen holes to achieve the effect of dredging the screen holes, effectively avoiding blockage of the screen holes.

[0023] 3. While the annular screen rotates, the circular partition drives the active pulley to rotate synchronously, and the linkage mechanism drives the knocking mechanism to perform cyclic intermittent knocking on the circulating screening mechanism, so that the waste fragments attached to the circulating screening mechanism can fall off fully, avoiding the attachment and accumulation of waste fragments affecting the screening effect of the circulating screening mechanism. The two-way knocking method can effectively avoid the deformation of the screen caused by unidirectional impact.

[0024] 4. By setting the crushing mechanism in the processing bin, opening a feed chute on the processing bin, and setting a flip guide on the feed chute, the flip guide can be closed in time after the waste enters the processing bin. The waste is crushed by the crushing mechanism in the processing bin, and the crushed fragments are discharged through the guide part, effectively avoiding the dust and debris splashing caused by the crushing process, which affects the environment and workers' health. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the main structure of an embodiment of the present invention is shown;

[0027] Figure 2 A perspective view of the internal structure of a processing chamber according to an embodiment of the present invention is shown;

[0028] Figure 3 It shows a schematic structural diagram of a material guide portion and a processing table according to an embodiment of the present invention;

[0029] Figure 4 It shows a schematic diagram of the linkage mechanism and the processing chamber structure according to an embodiment of the present invention;

[0030] Figure 5 A schematic structural diagram of a knocking mechanism according to an embodiment of the present invention is shown;

[0031] Figure 6It shows an exploded schematic diagram of a part of the structure of a processing table according to an embodiment of the present invention;

[0032] Figure 7 It shows a schematic structural diagram of a crushing mechanism according to an embodiment of the present invention;

[0033] Figure 8 A schematic structural diagram of an auxiliary rotating part and a circulating screening mechanism according to an embodiment of the present invention is shown.

[0034] In the figure: 100, processing table; 110, transmission trough; 120, discharge trough; 200, feed conveyor belt; 300, discharge conveyor belt; 400, processing chamber; 410, feed trough; 420, linkage mechanism; 421, driving pulley; 422, driven pulley; 423, synchronous belt; 424, linkage pulley; 425, first transmission prism; 426, turntable; 427, second transmission prism; 430, flip guide; 440, circulating screening mechanism; 441, annular screen; 442, circular partition; 443, annular baffle; 444, interval Baffle; 450, knocking mechanism; 451, swing shaft; 452, mounting hoop; 453, swing plate; 454, knocking hammer; 455, torsion spring; 460, feed hopper; 470, crushing mechanism; 471, driving gear; 472, linkage gear; 473, crushing roller; 474, crushing teeth; 480, transmission gear; 490, auxiliary rotating part; 491, driven gear; 492, rotating roller; 493, snap-on protrusion; 500, material guiding part; 510, material guiding hopper; 520, discharge frame; 530, leveling teeth; 600, drive motor. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0036] The embodiment of the present invention provides a plastic processing waste recycling device, comprising a processing table 100; illustratively, as Figure 1 and Figure 2 shown.

[0037] The top end of the processing table 100 is provided with an inlet conveying belt 200, the processing table 100 is provided with a treatment bin 400, the treatment bin 400 is provided with an inlet slot 410 on the side close to the inlet conveying belt 200, the inlet slot 410 is provided with a turnover guide plate 430, the treatment bin 400 is provided with a circulating screening mechanism 440, the treatment bin 400 is provided with a knocking mechanism 450, and the knocking mechanism 450 is arranged directly above the circulating screening mechanism 440;

[0038] The bottom end of the processing table 100 is provided with a material guiding part 500, the material guiding part 500 is provided with an outlet conveying belt 300 below, the material guiding part 500 includes a material guiding hopper 510, an outlet frame 520 and a plurality of groups of flattening teeth 530, the material guiding hopper 510 is fixedly connected to the bottom end of the processing table 100, the bottom end of the material guiding hopper 510 is in communication with the outlet frame 520, a plurality of groups of the flattening teeth 530 are fixedly connected to the discharge port of the outlet frame 520, and the bottom end of the plurality of groups of the flattening teeth 530 is movably attached to the outlet conveying belt 300;

[0039] Specifically, the waste to be treated is sent into the inlet slot 410 through the inlet conveying belt 200, the turnover guide plate 430 is automatically opened by the waste pushing, so that the waste enters the treatment bin 400, the waste is crushed in the treatment bin 400, the crushed waste is screened by the circulating screening mechanism 440, the waste meeting the crushing size requirement falls through the material guiding part 500 to the outlet conveying belt 300 for conveying, at the same time, the plurality of groups of the flattening teeth 530 perform flattening operation on the falling waste, avoiding the waste from rolling down due to local accumulation, facilitating the next step of processing or collecting the processed waste, and the waste with a larger size which does not meet the crushing size requirement after the screening by the circulating screening mechanism 440 is continuously left in the treatment bin 400 for circulating crushing until all the waste size reaches the preset value and the crushing and conveying are completed.

[0040] As shown in the examples, Figure 3 and Figure 4 .

[0041] A linkage mechanism 420 is provided on the outer wall of the processing bin 400 and on the side away from the feed conveyor belt 200. The linkage mechanism 420 includes a driving pulley 421 and a driven pulley 422. The driving pulley 421 and the driven pulley 422 are both rotatably connected to the outer wall of the processing bin 400. A synchronous belt 423 is sleeved on the driving pulley 421 and the driven pulley 422. A linkage pulley 424 is fixedly connected to the driven pulley 422. A plurality of first transmission prisms 425 are fixedly connected to the side wall of the linkage pulley 424. If The first transmission prisms 425 are evenly spaced. A turntable 426 is rotatably connected to the outer wall of the processing chamber 400. One end of the turntable 426 is fixedly connected to a plurality of second transmission prisms 427. The plurality of second transmission prisms 427 are arranged in a circular array around the central axis of the turntable 426. The plurality of second transmission prisms 427 are perpendicularly meshed with the plurality of first transmission prisms 425. The number of the plurality of second transmission prisms 427 is greater than the number of the plurality of first transmission prisms 425.

[0042] The knocking mechanism 450 includes a swing shaft 451, one end of which passes through the outer wall of the processing chamber 400 and is fixedly connected to the center of the turntable 426. Several groups of mounting hoops 452 are fixedly connected to the swing shaft 451. Several groups of mounting hoops 452 are symmetrically provided with two groups of swing plates 453. The bottom ends of the two groups of swing plates 453 are fixedly connected to a knocking hammer 454. A torsion spring 455 is provided between the turntable 426 and an adjacent group of mounting hoops 452. The torsion spring 455 is sleeved on the swing shaft 451.

[0043] Specifically, the driving pulley 421 and the driven pulley 422 rotate synchronously, so that the linkage wheel 424 drives the plurality of first transmission prisms 425 to rotate until they are in contact with and staggered with the plurality of first transmission prisms 425, thereby driving the turntable 426 to rotate at an intermittent fixed angle value, so that the swing shaft 451 drives the plurality of swing plates 453 to swing, so that the knocking hammer 454 on one side of the swing shaft 451 knocks the circulating screening mechanism 440. When the first transmission prism 425 is disengaged, the torsion force of the torsion spring 455 causes the swing shaft 451 to rotate in the opposite direction, so that the knocking hammer 454 on the other side of the swing shaft 451 knocks the circulating screening mechanism 440. The knocking mechanism 450 is driven by the linkage mechanism 420 to perform cyclic intermittent knocking on the circulating screening mechanism 440, so that the waste fragments attached to the circulating screening mechanism 440 can fall off fully, thereby avoiding the adhesion and accumulation of waste fragments affecting the screening effect of the circulating screening mechanism 440.

[0044] For example, Figure 6-8 shown.

[0045] The processing table 100 is provided with a feed chute 120, which is in communication with the guide hopper 510. A feed hopper 460 is provided directly above the feed chute 120, which is provided directly below the discharge end of the feed conveyor belt 200. A crushing mechanism 470 is provided in the feed hopper 460. The processing table 100 is provided with a transmission trough 110, in which a drive motor 600 is installed. The output end of the drive motor 600 is in transmission connection with the crushing mechanism 470.

[0046] The crushing mechanism 470 includes a driving gear 471, the center of which is transmission-connected to the output end of the drive motor 600, and a linkage gear 472 meshingly connected to the driving gear 471. The driving gear 471 and the linkage gear 472 are both rotationally connected to the inner side wall of the processing chamber 400. The centers of the driving gear 471 and the linkage gear 472 are both fixedly connected to crushing rollers 473. Two sets of the crushing rollers 473 are each provided with a plurality of sets of crushing teeth 474, and the crushing teeth on the two sets of the crushing rollers 473 are arranged in a staggered meshing arrangement.

[0047] The inner wall of the processing chamber 400 is also rotatably connected to two sets of transmission gears 480. The two sets of transmission gears 480 are meshed with each other. One set of transmission gears 480 is meshed with the linkage gear 472, and the other set of transmission gears 480 is meshed with the auxiliary rotating part 490.

[0048] The auxiliary rotating part 490 includes a driven gear 491, which is meshed with a set of transmission gears 480. A rotating roller 492 is fixedly connected to the center of the driven gear 491, and a plurality of locking protrusions 493 are evenly distributed on the rotating roller 492.

[0049] The circulating screening mechanism 440 includes an annular screen 441 having a plurality of groups of screen holes formed thereon, the plurality of groups of screen holes being matched with a plurality of groups of engaging protrusions 493. A circular partition 442 is fixedly connected to one end of the annular screen 441, the center of the circular partition 442 being fixedly connected to the center of the driving pulley 421. An annular baffle 443 is fixedly connected to the other end of the annular screen 441. The inner wall of the annular screen 441 is evenly provided with a plurality of groups of spacer baffles 444.

[0050] Specifically, the driving motor 600 drives the driving gear 471 and the linkage gear 472 to rotate in opposite directions at the same time, so that the crushing teeth 474 on the two sets of crushing rollers 473 are meshed and rotated synchronously to crush the waste. The crushed waste fragments fall onto the annular screen 441 for screening. The fragments that meet the preset size fall into the guide hopper 510 through the discharge chute 120 and finally fall onto the discharge conveyor belt 300 for transportation, while the waste fragments that do not meet the preset size remain on the inner side of the annular screen 441.

[0051] Furthermore, while the driving motor 600 drives the crushing mechanism 470 to work, the two sets of transmission gears 480 rotate synchronously, causing the driven gear 491 to drive the rotating roller 492 to rotate, thereby causing several sets of engaging protrusions 493 close to the side of the annular screen 441 to be clamped into adjacent sieve holes, causing the rotating roller 492 to drive the annular screen 441 to rotate, and while rotating, the waste fragments are driven to rotate synchronously. By providing the annular baffle 443 and the spacing baffle 444, the waste fragments in the annular screen 441 are effectively prevented from falling to the outside of the feed hopper 460 during the rotation process. When the annular screen 441 drives the waste fragments to rotate to the top of the feed hopper 460, the waste fragments are caused to fall into the feed hopper 460 by the gravity of the waste fragments, and are crushed for the second time by the crushing mechanism 470, thereby realizing automatic cyclic crushing of the waste until the size of the processed waste fragments meets the requirements.

[0052] Furthermore, while the annular screen 441 rotates, the circular partition 442 drives the active pulley 421 to rotate synchronously, so that the knocking mechanism 450 performs intermittent knocking operations on the upper side of the annular screen 441, so that the waste fragments attached to the inner side of the annular screen 441 can fall off fully, thereby avoiding the waste fragments from clogging the screen holes and affecting the screening effect.

[0053] The working principle of the device for recycling plastic processing waste proposed by the present invention is as follows:

[0054] The waste to be processed is fed into the feed trough 410 through the feed conveyor belt 200, and the waste pushes the flip guide plate 430 to open automatically, allowing the waste to enter the feed hopper 460 in the processing bin 400. The driving motor 600 drives the driving gear 471 and the linkage gear 472 to rotate in opposite directions at the same time, so that the crushing teeth 474 on the two sets of crushing rollers 473 are engaged and rotated synchronously to crush the waste.

[0055] The crushed waste fragments fall onto the annular screen 441 for screening. The fragments whose size meets the preset value fall into the guide hopper 510 through the discharge chute 120, and finally fall onto the discharge conveyor belt 300 through the discharge frame 520. At the same time, several groups of leveling teeth 530 flatten the fallen waste to avoid local accumulation of excessive waste and causing the waste to roll off during transportation, so as to facilitate the next step of processing or collection of the processed waste.

[0056] The annular screen 441 is used for screening, so that the waste fragments that do not meet the preset size value remain on the inner side of the annular screen 441. While the crushing mechanism 470 is driven by the driving motor 600, the two sets of transmission gears 480 rotate synchronously, so that the driven gear 491 drives the rotating roller 492 to rotate, so that several sets of engaging protrusions 493 close to the side of the annular screen 441 are engaged in adjacent sieve holes, so that the rotating roller 492 drives the annular screen 441 to rotate, and the rotation of the roller drives the waste fragments to rotate synchronously. By providing the annular baffle 443 and the spacing baffle 444, the waste fragments in the annular screen 441 are effectively prevented from falling to the outside of the feed hopper 460 during the rotation. When the annular screen 441 drives the waste fragments to rotate above the feed hopper 460, the waste fragments fall into the feed hopper 460 due to the gravity of the waste fragments, and are crushed again by the crushing mechanism 470, thereby realizing automatic cyclic crushing of the waste until the size of the processed waste fragments meets the requirements.

[0057] As the annular screen 441 rotates, the circular partition 442 drives the active pulley 421 to rotate synchronously, and the active pulley 421 and the driven pulley 422 rotate synchronously, so that the linkage wheel 424 drives the plurality of first transmission prisms 425 to rotate until they are in contact with and staggered with the plurality of first transmission prisms 425, thereby driving the turntable 426 to rotate at an intermittent fixed angle value, so that the swing shaft 451 drives the plurality of swing plates 453 to swing, so that the knocking hammer 454 on one side of the swing shaft 451 knocks the circulating screening mechanism 440. When the plurality of first transmission prisms 425 are in contact with the plurality of first transmission prisms 425, the swinging shaft 451 drives the plurality of swing plates 453 to swing, thereby causing the knocking hammer 454 on the side of the swing shaft 451 to knock the circulating screening mechanism 440. When the first transmission prism 425 of the dry group is disengaged, the torsion force of the torsion spring 455 causes the swing shaft 451 to rotate in the opposite direction, so that the knocking hammer 454 on the other side of the swing shaft 451 knocks the circulating screening mechanism 440, and the knocking mechanism 450 is driven by the linkage mechanism 420 to perform cyclic intermittent knocking on the circulating screening mechanism 440, so that the waste fragments attached to the circulating screening mechanism 440 can fall off fully, avoiding the adhesion and accumulation of waste fragments affecting the screening effect of the circulating screening mechanism 440, and it effectively avoids the deformation of the screen caused by unidirectional impact through the two-way knocking method.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plastic processing waste recycling device, comprising a processing table, characterized in that: A feed conveyor belt for conveying waste to be processed is provided at the top of the processing table, a processing bin is provided on the processing table, a feed trough is provided on the side of the processing bin close to the feed conveyor belt, and a circulating screening mechanism for screening the crushed waste is provided in the processing bin; A material discharge chute is provided on the processing table, a material feed hopper is provided just above the material discharge chute, and a crushing mechanism for crushing the waste is provided in the material feed hopper; A transmission slot is provided on the processing table, a drive motor is installed in the transmission slot, and an output end of the drive motor is transmission-connected to the crushing mechanism; The inner side wall of the processing chamber is also rotatably connected to two sets of transmission gears, and one set of the transmission gears is meshedly connected to an auxiliary rotating part for driving the circulating screening mechanism to rotate; The auxiliary rotating part includes a driven gear, which is meshed with a group of transmission gears. A rotating roller is fixedly connected to the center of the driven gear, and a plurality of groups of clamping protrusions are evenly distributed on the rotating roller.

2. The plastic processing waste recycling device according to claim 1, characterized in that: A material guide portion is provided at the bottom end of the processing table, and a discharge conveyor belt is provided directly below the material guide portion. The material guide portion includes a material guide hopper, a discharge frame and several groups of leveling teeth. The material guide hopper is fixedly connected to the bottom end of the processing table, and the bottom end of the material guide hopper is communicated with the discharge frame. Several groups of the leveling teeth are fixedly connected at the discharge port of the discharge frame, and the bottom ends of several groups of the leveling teeth are movably fitted with the discharge conveyor belt.

3. The plastic processing waste recycling device according to claim 1, characterized in that: A linkage mechanism is provided on the outer wall of the processing bin and on the side away from the feed conveyor belt. The linkage mechanism includes a driving pulley and a driven pulley. The driving pulley and the driven pulley are both rotatably connected to the outer wall of the processing bin, and a synchronous belt is provided on the driving pulley and the driven pulley.

4. The plastic processing waste recycling device according to claim 3, characterized in that: The driven pulley is fixedly connected to a linkage wheel, and a side wall of the linkage wheel is fixedly connected to several groups of first transmission prisms, and the several groups of first transmission prisms are equidistantly distributed. The outer wall of the processing bin is also rotatably connected to a turntable, and one end of the turntable is fixedly connected to several groups of second transmission prisms, and the several groups of second transmission prisms are distributed in a circular array with the central axis of the turntable as the center. The several groups of second transmission prisms and the several groups of first transmission prisms are arranged perpendicular to each other, and the number of the several groups of second transmission prisms is greater than the number of the several groups of first transmission prisms.

5. The plastic processing waste recycling device according to claim 4, characterized in that: A knocking mechanism is provided in the processing chamber, and the knocking mechanism includes a swing shaft, one end of the swing shaft passes through the outer wall of the processing chamber and is fixedly connected to the center of the turntable, and several groups of mounting hoops are fixedly connected to the swing shaft, and two groups of swing plates are symmetrically provided on the several groups of mounting hoops, and the bottom ends of the two groups of swing plates are fixedly connected to a knocking hammer, and a torsion spring is provided between the turntable and an adjacent group of mounting hoops, and the torsion spring is sleeved on the swing shaft.

6. The plastic processing waste recycling device according to claim 1, characterized in that :The crushing mechanism includes a driving gear, the center of which is transmission-connected to the output end of the driving motor, a linkage gear meshing with the driving gear, and both the driving gear and the linkage gear are rotatably connected to the inner wall of the processing bin, and the centers of the driving gear and the linkage gear are fixedly connected to crushing rollers, and both groups of crushing rollers are provided with several groups of crushing teeth, and the crushing teeth on the two groups of crushing rollers are staggered and meshed.

7. The plastic processing waste recycling device according to claim 1, characterized in that: The two groups of transmission gears are meshed with each other, and one group of transmission gears is meshed and connected with the linkage gear.

8. The plastic processing waste recycling device according to claim 1, characterized in that: The circulating screening mechanism comprises an annular screen, on which a plurality of groups of screen holes are formed, and the plurality of groups of screen holes are matched with a plurality of groups of clamping protrusions.

9. The plastic processing waste recycling device according to claim 8, characterized in that: One end of the annular screen is fixedly connected to a circular partition, the other end of the annular screen is fixedly connected to an annular baffle, and the inner wall of the annular screen is evenly provided with a plurality of groups of spacer baffles.

10. The plastic processing waste recycling device according to claim 1, characterized in that: The feed chute is provided with a turning guide plate, the discharge chute and the guide hopper are communicated with each other, and the feed hopper is arranged just below the discharge end of the feed conveyor belt.

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