Layered progressive cutting type waste plastic granulator and method thereof

Abstract

The invention relates to the field of pelletizers, in particular to a layered progressive cutting type waste plastic pelletizer and a method thereof. Comprising a granulator structure, the top of the granulator structure communicates with a conversion box, the outer wall of the conversion box communicates with a progressive cutting assembly, the inner wall of the top of the conversion box is provided with a crushing assembly, and the inner wall of the conversion box is provided with a layered screening assembly; a hydraulic push rod is started to push a pressing rod to extrude waste plastics, so that a plurality of groups of dispersedly placed waste conveyed materials become compact, the coherence is increased, meanwhile, the placing space is reduced, the subsequent crushing and granulating work is facilitated, and the working efficiency is improved. And during extrusion work, a plurality of groups of second cutting structures can be driven to perform small block segmentation work on segmented waste plastics, so that the length limitation effect of the plastics is reduced while cutting is more thorough, and the working effect of the granulator is improved while the progressive cutting compatible effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of granulators, and in particular relates to a layered and progressively cut waste plastic granulator and a method thereof. Background Art

[0002] Plastic granulator is suitable for granulating waste film, waste silk, waste woven bags, waste plastic bottles, waste plastic barrels, boards and crushed materials.

[0003] After searching, in the prior art, Chinese Patent Publication No.: CN220464407U, Authorization Publication Date: 2024-02-09, discloses a waste plastic recycling granulator, including a granulator body, a feed pipe is arranged on one side edge of the granulator body, a hopper is fixedly installed on the top edge of the feed pipe, a fixing frame is welded at the bottom of both sides of the hopper, a movable rod is movably installed in the middle of the top of the fixing frame, a fixing plate is fixedly installed in the middle of the top of the movable rod, a spring is sleeved on one side of the outer surface of the movable rod, a placement groove is opened at the bottom of one side of the inner wall of the fixing frame through the outer wall of the hopper, and a material diverting plate is hinged at the bottom of one side of the inner wall of the hopper near the placement groove; the above embodiment solves the problem that it is inconvenient to discharge materials due to the accumulation of a large amount of waste plastics inside the hopper, and reflects the overall granulation efficiency of waste plastics.

[0004] However, the device still has the following defects:

[0005] The existing granulation structure cannot cut the waste plastics reasonably and regularly, making the subsequent granulation process inefficient. In addition, the continuity between the plastics is poor, making the crushing effect inefficient, thereby reducing the working effect of the granulator. Summary of the invention

[0006] In view of the above problems, the present invention provides a layered progressive cutting type waste plastic granulator. It comprises a granulator structure, the top of which is connected to a conversion box, the outer wall of which is connected to a progressive cutting component, and a crushing component is installed on the inner wall of the top, and a layered screening component is installed on the inner wall of the conversion box;

[0007] The cutting assembly includes a second connecting plate, a plurality of groups of hydraulic push rods are evenly spaced at the bottom of the second connecting plate, a group of pressing rods are installed on the output end of each group of hydraulic push rods, a third connecting plate is installed on one side wall of the second connecting plate, a third electric push rod is installed at the bottom of the third connecting plate, a fourth connecting plate is installed on the output end of the third electric push rod, and a plurality of groups of second cutting structures are arranged directly below the fourth connecting plate;

[0008] The hydraulic push rod is activated to push the pressing rod to squeeze the waste plastic, making the feeding of several groups of scattered waste materials tight.

[0009] Furthermore, a first electric ball valve is installed at the junction of the conversion box and the granulator structure, a third motor is installed on the outer wall of the conversion box, a rotating rod is transmission-connected to the output end of the third motor, and the end of the rotating rod away from the third motor passes through the conversion box and is connected to a crushing disc.

[0010] Furthermore, the delivery cutting assembly also includes a delivery cutting box, a second electric ball valve is installed at the junction of the delivery cutting box and the conversion box, a placement hole is opened on the top of the delivery cutting box, a first electric push rod is installed on the inner wall of the delivery cutting box on the side away from the second electric ball valve, a push plate is installed on the output end of the first electric push rod, a first connecting plate is installed on the top inner wall of the delivery cutting box, two groups of second electric push rods are symmetrically installed on the bottom of the first connecting plate, a first cutting structure is installed on the output end of one group of the second electric push rods, and the top of the second connecting plate is installed on the output end of the other group of the second electric push rods.

[0011] Furthermore, a plurality of groups of connecting rods are evenly spaced at the bottom of the second connecting plate, a group of sleeve tubes are installed at the bottom of each group of the connecting rods, the outer wall of each group of the pressing rods is slidably connected to the inner wall of the sleeve tube, the outer wall of each group of the sleeve tubes is connected to a group of water tanks, and a group of third electric ball valves are installed at the junction of each group of the water tanks and the sleeve tubes.

[0012] Furthermore, a sliding cavity is provided at the bottom of the fourth connecting plate, and several groups of fifth connecting plates are slidably connected in the sliding cavity, two groups of connecting blocks are symmetrically installed at the bottom of each group of the fifth connecting plates, a group of fourth electric push rods are installed on one side wall of each group of the connecting blocks, a group of rectangular blocks are installed on the output end of each group of the fourth electric push rods, and the top of each group of the second cutting structure is installed on the bottom of the rectangular block.

[0013] Furthermore, the crushing assembly includes a fifth electric push rod, the top of which is installed on the top inner wall of the conversion box, a first motor is installed on the output end of the fifth electric push rod, a disc structure is transmission-connected to the output end of the first motor, a plurality of groups of sixth electric push rods are distributed in a circular array on the bottom of the disc structure, a group of second motors are installed on the output end of each group of the sixth electric push rods, a group of fixed blocks are transmission-connected to the output end of each group of the second motors, a group of stretching rods are installed on one side wall of each group of the fixed blocks, and a group of crushing roller structures are installed on one end of each group of the stretching rods.

[0014] Furthermore, the layered screening assembly includes a hollow plate, one end of which is mounted on the inner wall of the conversion box, and a mounting plate is mounted on the other end of the hollow plate, and a vibration motor is mounted on the top of the mounting plate.

[0015] Furthermore, a transmission plate is transmission-connected on the output end of the vibration motor, a first filter screen is sleeved on the outer wall of the transmission plate, two groups of damping shock absorbers are symmetrically installed at the top edge of the mounting plate, the top of each group of damping shock absorbers is installed on the bottom of the transmission plate, and a fourth motor is installed on the top of the transmission plate.

[0016] Furthermore, the output end of the fourth motor is transmission-connected to the second filter screen, the bottom of the mounting plate is installed with a seventh electric push rod, the output end of the seventh electric push rod is installed with a dredging cylinder, and the outer wall of the dredging cylinder is installed with a vacuum pump.

[0017] A method for a layered and progressively cutting waste plastic granulator, the method comprising:

[0018] Start the hydraulic push rod to push the pressing rod to squeeze the waste plastic;

[0019] This makes the feeding of several groups of scattered waste materials tight;

[0020] Drive several groups of second cutting structures to segment the segmented waste plastic into small pieces;

[0021] Start the crushing component to crush the waste plastics;

[0022] After starting the layered screening component for filtration, the product falls into the granulator structure for granulation.

[0023] The beneficial effects of the present invention are:

[0024] 1. Start the hydraulic push rod to push the pressing rod to squeeze the waste plastics, so that the feeding of several groups of scattered waste materials becomes tight, which increases the continuity and reduces the placement space, which is more conducive to the subsequent crushing and granulation work. During the extrusion work, it can drive several groups of second cutting structures to segment the segmented waste plastics into small pieces, making the cutting more thorough while reducing the length limitation effect of the plastics, improving the compatibility of the progressive cutting effect and improving the working effect of the granulator.

[0025] 2. During the extrusion work, the third electric ball valve can be opened first to allow the water in the water tank to flow into the waste plastics, and then the water is pressed into the waste plastics during the extrusion process, and no impurities will remain on the pressing rod, which extends the service life of the structure while improving the flexibility of the internal fibers of the waste plastics, and is more conducive to the subsequent granulation work; and the distance between the two groups of fifth connecting plates can be adjusted according to the situation of the waste plastics, and the two groups of fifth connecting plates can be pushed to slide in the sliding cavity, which improves the convenience of subsequent cutting position adjustment.

[0026] 3. When the waste plastic falls onto the crushing disc, the fifth electric push rod is started to push several groups of crushing roller structures to the specified position, and then the first motor is started to drive the disc structure to rotate, which in turn drives several groups of crushing roller structures to crush the waste plastic. In order to speed up the crushing progress, several groups of second motors can be started to drive the crushing roller structure to rotate, which expands the crushing range and speeds up the crushing progress.

[0027] 4. The second filter screen is driven to rotate by the fourth motor, and filtering is performed by centrifugal effect while rotating. The frequency of the fourth motor rotation can be used to adjust the offset filtering between the two groups of filter screens while filtering, so as to control the flow and avoid the problem of transportation blockage. Subsequently, in order to prevent the first filter screen from being blocked, the vibration motor can be started to drive the first filter screen to vibrate, thereby improving the feeding effect; while improving the feeding effect, equipment blockage is avoided.

[0028] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces 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 creative work.

[0030] Figure 1 It shows a schematic structural diagram of a waste plastic granulator according to an embodiment of the present invention;

[0031] Figure 2 A schematic cross-sectional view of a waste plastic granulator according to an embodiment of the present invention is shown;

[0032] Figure 3 A cross-sectional schematic diagram of a cutting assembly according to an embodiment of the present invention is shown;

[0033] Figure 4 A schematic structural diagram of a first connecting plate according to an embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram of the structure of a second connecting plate according to an embodiment of the present invention is shown;

[0035] Figure 6 A schematic diagram of the structure of a third connecting plate according to an embodiment of the present invention is shown;

[0036] Figure 7 A schematic diagram of the structure of a crushing assembly according to an embodiment of the present invention is shown;

[0037] Figure 8 A schematic structural diagram of a layered screening assembly according to an embodiment of the present invention is shown.

[0038] In the figure: 1, granulator structure; 2, conversion box; 3, first electric ball valve; 4, cutting assembly; 401, cutting box; 402, second electric ball valve; 403, placement hole; 404, first electric push rod; 405, push plate; 406, first connecting plate; 407, second electric push rod; 408, first cutting structure; 409, second connecting plate; 410, connecting rod; 411, sleeve pipe; 412, hydraulic push rod; 413, pressing rod; 414, water tank; 415, third electric ball valve; 416, third connecting plate; 417, third electric push rod; 418, fourth connecting plate; 419, sliding cavity; 420, fifth connecting plate; 4 21. Connecting block; 422. Fourth electric push rod; 423. Second cutting structure; 5. Crushing assembly; 501. Fifth electric push rod; 502. First motor; 503. Disc structure; 504. Sixth electric push rod; 505. Second motor; 506. Fixed block; 507. Crushing roller structure; 6. Third motor; 7. Rotating rod; 8. Crushing disc; 9. Layered screening assembly; 901. Hollow plate; 902. Mounting plate; 903. Vibrating motor; 904. Damping shock absorber; 905. First filter screen; 906. Fourth motor; 907. Second filter screen; 908. Seventh electric push rod; 909. Clearing cylinder; 910. Vacuum pump. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0040] The embodiment of the present invention provides a layered and progressively cut waste plastic granulator. It includes a granulator structure 1, exemplarily, as Figure 1 and Figure 2As shown, the top of the granulator structure 1 is connected to a conversion box 2, and a first electric ball valve 3 is installed at the junction of the conversion box 2 and the granulator structure 1. The outer wall of the conversion box 2 is connected to a cutting assembly 4, and a crushing assembly 5 is installed on the inner wall of the top. A third motor 6 is installed on the outer wall of the conversion box 2, and a rotating rod 7 is transmission-connected to the output end of the third motor 6. The end of the rotating rod 7 away from the third motor 6 passes through the conversion box 2 and is connected to a crushing disk 8. A layered screening assembly 9 is installed on the inner wall of the conversion box 2.

[0041] For example, Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the transfer cutting assembly 4 includes a transfer cutting box 401, the input end of the transfer cutting box 401 is located directly above the input end of the crushing disk 8, a second electric ball valve 402 is installed at the junction of the transfer cutting box 401 and the conversion box 2, a placement hole 403 is opened on the top of the transfer cutting box 401, a first electric push rod 404 is installed on the inner wall of the side of the transfer cutting box 401 away from the second electric ball valve 402, a push plate 405 is installed on the output end of the first electric push rod 404, a first connecting plate 406 is installed on the top inner wall of the transfer cutting box 401, and the first connecting plate 406 is installed on the top inner wall of the transfer cutting box 401. 6, two groups of second electric push rods 407 are symmetrically installed at the bottom, one group of the second electric push rods 407 is installed with a first cutting structure 408 on the output end, and the other group of the second electric push rods 407 is installed with a second connecting plate 409 on the output end, and a plurality of groups of connecting rods 410 are evenly distributed at the bottom of the second connecting plate 409, and a group of sleeve pipes 411 are installed at the bottom of each group of the connecting rods 410, and a plurality of groups of hydraulic push rods 412 are evenly distributed at the bottom of the second connecting plate 409, and a group of pressing rods are installed at the output end of each group of the hydraulic push rods 412. 413, the outer wall of each group of the pressing rods 413 is slidably connected to the inner wall of the sleeve pipe 411, the outer wall of each group of the sleeve pipe 411 is connected to a group of water tanks 414, and a group of third electric ball valves 415 are installed at the junction of each group of the water tanks 414 and the sleeve pipe 411. A third connecting plate 416 is installed on one side wall of the second connecting plate 409, and a third electric push rod 417 is installed at the bottom of the third connecting plate 416. A fourth connecting plate 418 is installed on the output end of the third electric push rod 417, and the bottom of the fourth connecting plate 418 is opened. There is a sliding cavity 419, in which several groups of fifth connecting plates 420 are slidably connected, two groups of connecting blocks 421 are symmetrically installed at the bottom of each group of the fifth connecting plates 420, a group of cavities are opened at the bottom of each group of the connecting blocks 421, a group of fourth electric push rods 422 are installed on one side wall of each group of the connecting blocks 421, a group of rectangular blocks are installed on the output end of each group of the fourth electric push rods 422, a group of second cutting structures 423 are installed at the bottom of each group of the rectangular blocks, and the top of each group of the second cutting structures 423 is slidably connected in the cavity.

[0042] Before the granulator structure works, the waste plastic is first placed in the cutting box 401 through the placement hole, and then the first electric push rod 404 is started to push the push plate 405 forward, and then the waste plastic is moved to the bottom of the first cutting structure 408, and then one of the second electric push rods 407 is started to push the first cutting structure 408 to cut and segment the waste plastic. During the process of using the first cutting structure 408 to cut and segment, another group of second electric push rods 407 is started to push several groups of sleeve pipes 411 to contact the top of the segmented waste plastic, and then the hydraulic push rod is started. 412 pushes the pressing rod 413 to squeeze the waste plastics, so that the waste feed of several groups of scattered waste materials becomes tight, which increases the continuity and reduces the placement space, which is more conducive to the subsequent crushing and granulation work. In the process of squeezing, the third electric ball valve 415 can be opened first to let the water in the water tank 414 flow into the waste plastics, and then the water is pressed into the waste plastics during the squeezing process, and no impurities will remain on the pressing rod 413, which prolongs the service life of the structure and improves the flexibility of the internal fibers of the waste plastics, which is more conducive to the subsequent granulation work;

[0043] When performing the extrusion work, the third electric push rod 417 can be started to drive several groups of second cutting structures 423 to segment the segmented waste plastic into small pieces. During the process, the fourth electric push rod 422 can be started to push the second cutting structure 423 to slide back and forth to split, so that the cutting is more thorough while reducing the length limitation effect of the plastic. Before using several groups of second cutting structures 423, the distance between the two groups of fifth connecting plates 420 can be adjusted according to the situation of the waste plastic, and the two groups of fifth connecting plates 420 can be pushed to slide in the sliding cavity 419, thereby improving the compatibility effect of the cutting position.

[0044] The second electric ball valve 402 is opened, and the first electric push rod 404 is started to push the push plate 405 to input the waste material after the cutting is completed to the crushing disk 8, and then the second electric ball valve 402 is closed to continue the segmentation work.

[0045] For example, Figure 7As shown, the crushing assembly 5 includes a fifth electric push rod 501, the top of which is mounted on the top inner wall of the conversion box 2, a first motor 502 is mounted on the output end of the fifth electric push rod 501, a disc structure 503 is transmission-connected to the output end of the first motor 502, a plurality of groups of sixth electric push rods 504 are distributed in a circular array at the bottom of the disc structure 503, a group of second motors 505 are mounted on the output end of each group of the sixth electric push rods 504, a group of fixed blocks 506 are transmission-connected to the output end of each group of the second motors 505, a group of stretching rods are mounted on one side wall of each group of the fixed blocks 506, a group of crushing roller structures 507 are mounted on one end of each group of the stretching rods, and each group of the crushing roller structures 507 are located directly above the crushing disk 8.

[0046] When the waste plastic falls onto the crushing disk 8, the fifth electric push rod 501 is started to push several groups of crushing roller structures 507 to the specified position, and then the first motor 502 is started to drive the disc structure 503 to rotate, and then drive several groups of crushing roller structures 507 to crush the waste plastic. In order to speed up the crushing progress, several groups of second motors 505 can be started to drive the crushing roller structures 507 to rotate, thereby expanding the crushing range and speeding up the crushing progress.

[0047] For example, Figure 8 As shown, the layered screening assembly 9 includes a hollow plate 901, one end of the hollow plate 901 is mounted on the inner wall of the conversion box 2, and a mounting plate 902 is mounted on the other end of the hollow plate 901. A vibration motor 903 is mounted on the top of the mounting plate 902. A transmission plate is connected to the output end of the vibration motor 903. A first filter screen 905 is sleeved on the outer wall of the transmission plate. Two groups of damping shock absorbers 904 are symmetrically installed at the top edge of the mounting plate 902, each group The top of the damping shock absorber 904 is installed on the bottom of the transmission plate, and a fourth motor 906 is installed on the top of the transmission plate. The output end of the fourth motor 906 is transmission-connected to the second filter screen 907, and the second filter screen 907 is located directly below the crushing disk 8. A seventh electric push rod 908 is installed at the bottom of the mounting plate 902, and a clearing cylinder 909 is installed on the output end of the seventh electric push rod 908. A vacuum pump 910 is installed on the outer wall of the clearing cylinder 909.

[0048] When the crushing work is completed, the third motor 6 is started to drive the rotating rod 7 to rotate. The rotating rod 7 drives the crushing disk 8 to rotate while rotating. The crushing disk 8 pours the crushed waste plastic onto the second filter screen 907 while turning over, and then the second filter screen 907 is driven to rotate by the fourth motor 906. It is filtered by the centrifugal effect while rotating, and then it passes through the first filter screen 905 again and falls into the granulator structure 1 to work. While filtering, the frequency of the fourth motor rotation can be adjusted to adjust the offset filtering between the two groups of filter screens, so as to play a role in flow control and avoid the problem of transportation blockage. Then, in order to prevent the first filter screen from being blocked, the vibration motor 903 can be started to drive the first filter screen 905 to vibrate, thereby improving the feeding effect. Then, when the output end of the conversion box 2 is blocked, the seventh electric push rod 908 can be started to push the dredging cylinder 909 down for dredging or the vacuum pump 910 can be started to use pressure to absorb and take the waste plastic, thereby improving the working effect of the granulator.

[0049] Starting the hydraulic push rod 412 pushes the pressing rod 413 to squeeze the waste plastics, so that the feed of several groups of scattered waste materials becomes tight, which increases the continuity while reducing the placement space, and is more conducive to the subsequent crushing and granulation work. During the extrusion work, it can drive several groups of second cutting structures 423 to segment the segmented waste plastics into small pieces, making the cutting more thorough while reducing the length limitation effect of the plastics, improving the compatibility effect of the progressive cutting while improving the working effect of the granulator.

[0050] During the extrusion work, the third electric ball valve 415 can be opened first to allow the water in the water tank 414 to flow into the waste plastic, and then the water is pressed into the waste plastic during the extrusion process, and no impurities will remain on the pressing rod 413, thereby extending the service life of the structure while improving the flexibility of the internal fibers of the waste plastic, which is more conducive to the subsequent granulation work; and the distance between the two groups of fifth connecting plates 420 can be adjusted according to the situation of the waste plastic, pushing the two groups of fifth connecting plates 420 to slide in the sliding cavity 419, thereby improving the convenience of subsequent cutting position adjustment.

[0051] When the waste plastic falls onto the crushing disk 8, the fifth electric push rod 501 is started to push several groups of crushing roller structures 507 to the specified position, and then the first motor 502 is started to drive the disc structure 503 to rotate, and then drive several groups of crushing roller structures 507 to crush the waste plastic. In order to speed up the crushing progress, several groups of second motors 505 can be started to drive the crushing roller structures 507 to rotate, thereby expanding the crushing range and speeding up the crushing progress.

[0052] The second filter screen 907 is driven to rotate by the fourth motor 906, and filtering is performed by centrifugal effect during rotation. The frequency of the fourth motor rotation can be used to adjust the offset filtering between the two groups of filter screens during filtering, thereby controlling the flow and avoiding the problem of transportation blockage. Subsequently, in order to prevent the first filter screen from being blocked, the vibration motor 903 can be started to drive the first filter screen 905 to vibrate, thereby improving the feeding effect. This improves the feeding effect and avoids equipment blockage.

[0053] Based on the above-mentioned layered and successively cut waste plastic granulator, the embodiment of the present invention further proposes a method for layered and successively cut waste plastic granulator. Exemplarily, the method includes:

[0054] The waste plastic is placed in the cutting box through the placement hole, and then the first electric push rod is started to push the waste plastic to move directly below the first cutting structure;

[0055] One group of the second electric push rods is started to push the first cutting structure to cut and segment the waste plastics, and during the process of using the first cutting structure to cut and segment, another group of the second electric push rods is started to push a plurality of sets of sleeve pipes to contact the top of the segmented waste plastics;

[0056] Start the hydraulic push rod to push the pressing rod to squeeze the waste plastic, so that the waste material feeding of several groups of scattered waste becomes tight;

[0057] Open the third electric ball valve to let the water in the water storage tank flow onto the waste plastics, and press the water into the waste plastics during the squeezing process;

[0058] The third electric push rod is started to drive a plurality of groups of second cutting structures to segment the segmented waste plastic into small pieces;

[0059] The fourth electric push rod is started to push the second cutting structure to slide back and forth for cutting, and the two sets of fifth connecting plates can also be pushed to slide in the sliding cavity;

[0060] Open the second electric ball valve, start the first electric push rod to push the push plate to input the waste material after segmentation to the crushing disk, then close the second electric ball valve to continue the segmentation work;

[0061] The fifth electric push rod is started to push the plurality of crushing roller structures to the designated position, and then the first motor is started to drive the disc structure to rotate, and then the plurality of crushing roller structures are driven to crush the waste plastics;

[0062] After the crushing work is completed, the third motor is started to drive the rotating rod to rotate, and the rotating rod drives the crushing disk to rotate while rotating;

[0063] The crushing disc pours the crushed waste plastic onto the second filter screen while turning over, and then the second filter screen is driven to rotate by the fourth motor;

[0064] Filtered by centrifugal effect, then passed through the first filter screen and fell into the granulator structure to work;

[0065] While filtering, the frequency of the fourth motor rotation can be used to adjust the offset filtering between the two groups of filter screens; in order to prevent the first filter screen from being blocked, the vibration motor is started to drive the first filter screen to vibrate.

[0066] 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 substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A layered and progressively cutting waste plastic granulator, comprising a granulator structure (1), characterized in that: The top of the granulator structure (1) is connected to a conversion box (2), the outer wall of the conversion box (2) is connected to a cutting assembly (4), and a crushing assembly (5) is installed on the inner wall of the top, and a layered screening assembly (9) is installed on the inner wall of the conversion box (2); The cutting assembly (4) comprises a second connecting plate (409), a plurality of groups of hydraulic push rods (412) are evenly spaced at the bottom of the second connecting plate (409), a group of pressing rods (413) are installed on the output end of each group of the hydraulic push rods (412), a third connecting plate (416) is installed on a side wall of the second connecting plate (409), a third electric push rod (417) is installed at the bottom of the third connecting plate (416), a fourth connecting plate (418) is installed on the output end of the third electric push rod (417), and a plurality of groups of second cutting structures (423) are arranged directly below the fourth connecting plate (418); The hydraulic push rod (412) is activated to push the pressing rod (413) to squeeze the waste plastics, so that the waste materials of several groups placed separately become compact.

2. A layered and progressively cutting waste plastic granulator according to claim 1, characterized in that: A first electric ball valve (3) is installed at the junction of the conversion box (2) and the granulator structure (1); a third motor (6) is installed on the outer wall of the conversion box (2); a rotating rod (7) is transmission-connected to the output end of the third motor (6); and an end of the rotating rod (7) away from the third motor (6) passes through the conversion box (2) and is connected to a crushing disc (8).

3. A layered and progressively cutting waste plastic granulator according to claim 2, characterized in that: The cutting assembly (4) further comprises a cutting box (401), wherein a second electric ball valve (402) is installed at the junction of the cutting box (401) and the conversion box (2), a placement hole (403) is provided at the top of the cutting box (401), a first electric push rod (404) is installed on the inner wall of the cutting box (401) away from the second electric ball valve (402), a push plate (405) is installed on the output end of the first electric push rod (404), a first connecting plate (406) is installed on the top inner wall of the cutting box (401), two groups of second electric push rods (407) are symmetrically installed at the bottom of the first connecting plate (406), a first cutting structure (408) is installed on the output end of one group of the second electric push rods (407), and the top of the second connecting plate (409) is installed on the output end of the other group of the second electric push rods (407).

4. A layered and progressively cutting waste plastic granulator according to claim 3, characterized in that: A plurality of groups of connecting rods (410) are evenly spaced at the bottom of the second connecting plate (409); a group of sleeve tubes (411) are installed at the bottom of each group of the connecting rods (410); the outer wall of each group of the pressing rods (413) is slidably connected to the inner wall of the sleeve tube (411); the outer wall of each group of the sleeve tubes (411) is connected to a group of water tanks (414); and a group of third electric ball valves (415) are installed at the junction of each group of the water tanks (414) and the sleeve tube (411).

5. The layered and progressively cutting waste plastic granulator according to claim 1 is characterized in that: A sliding cavity (419) is provided at the bottom of the fourth connecting plate (418), and a plurality of groups of fifth connecting plates (420) are slidably connected in the sliding cavity (419), and two groups of connecting blocks (421) are symmetrically installed at the bottom of each group of the fifth connecting plates (420), and a group of fourth electric push rods (422) are installed on one side wall of each group of the connecting blocks (421), and a group of rectangular blocks are installed on the output end of each group of the fourth electric push rods (422), and the top of each group of the second cutting structures (423) is installed on the bottom of the rectangular block.

6. The layered progressive cutting type waste plastic granulator according to claim 1, characterized in that: The crushing assembly (5) comprises a fifth electric push rod (501), the top of which is mounted on the top inner wall of the conversion box (2), a first motor (502) being mounted on the output end of the fifth electric push rod (501), a disc structure (503) being transmission-connected to the output end of the first motor (502), a plurality of groups of sixth electric push rods (504) being distributed in a circular array at the bottom of the disc structure (503), a group of second motors (505) being mounted on the output end of each group of the sixth electric push rods (504), a group of fixed blocks (506) being transmission-connected to the output end of each group of the second motors (505), a group of stretching rods being mounted on one side wall of each group of the fixed blocks (506), and a group of crushing roller structures (507) being mounted on one end of each group of the stretching rods.

7. The layered and progressively cutting waste plastic granulator according to claim 1 is characterized in that: The layered screening assembly (9) comprises a hollow plate (901), one end of the hollow plate (901) is mounted on the inner wall of the conversion box (2), a mounting plate (902) is mounted on the other end of the hollow plate (901), and a vibration motor (903) is mounted on the top of the mounting plate (902).

8. The layered and progressively cutting waste plastic granulator according to claim 7 is characterized in that: A transmission plate is transmission-connected to the output end of the vibration motor (903), a first filter screen (905) is sleeved on the outer wall of the transmission plate, two groups of damping shock absorbers (904) are symmetrically installed at the top edge of the mounting plate (902), the top of each group of damping shock absorbers (904) is installed on the bottom of the transmission plate, and a fourth motor (906) is installed on the top of the transmission plate.

9. The layered progressive cutting type waste plastic granulator according to claim 8, characterized in that: The output end of the fourth motor (906) is connected to the second filter screen (907), the bottom of the mounting plate (902) is installed with a seventh electric push rod (908), the output end of the seventh electric push rod (908) is installed with a clearing cylinder (909), and the outer wall of the clearing cylinder (909) is installed with a vacuum pump (910).

10. A method of using the layered progressive cutting type waste plastic granulator according to any one of claims 1 to 9, characterized in that: The method comprises: Start the hydraulic push rod to push the pressing rod to squeeze the waste plastic; This makes the feeding of several groups of scattered waste materials tight; Drive several groups of second cutting structures to segment the segmented waste plastic into small pieces; Start the crushing component to crush the waste plastics; After starting the layered screening component for filtration, the product falls into the granulator structure for granulation.

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