Waste plastic cutting device

Abstract

The utility model discloses a cutting device for waste plastics, which relates to the technical field of plastic processing and comprises a cutting box, the top of the cutting box is communicated with a feeding port, the feeding port is of a V-shaped structure, crushing rollers which are distributed front and back are arranged in the feeding port in parallel along the length direction, crushing teeth are arranged on the outer walls of the crushing rollers, and the crushing teeth are communicated with the cutting box. A first motor is arranged on one side of the feeding opening, and the output end of the first motor is fixedly connected with the other end of one crushing roller through a rotating shaft; a containing groove, a driving shaft arranged in the containing groove and a cutting knife are arranged in the cutting box; the containing groove is in a hollow cylinder shape, an opening is formed in the top of the containing groove, and the containing groove is rotationally connected with the cutting box. The cutting knife is arranged on the driving shaft; a second motor and a third motor are arranged on the two sides of the cutting box correspondingly. Waste plastic is easily cut, the plastic is not prone to adhering to the blade, meanwhile, overheating embrittlement of a plastic product is avoided, and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a cutting device for waste plastics. Background Technique

[0002] Waste plastics generally refer to waste plastic products after consumption or use, and their official name is post-consumer plastic waste; these plastics are widely used in various fields such as daily life and agricultural production. When the lifespan or purpose of use of the product is reached, they will be discarded and become waste plastics; the sources of waste plastics are not limited to post-consumer waste, but also include waste materials or waste products generated in the processes of plastic synthesis, molding, and circulation; plastics are difficult to decompose and cause serious environmental damage. Therefore, some waste plastics need to be recycled.

[0003] When processing existing waste plastics, after a series of cleaning and stirring, they are heated to a molten state and then cut by mechanical blades. When the molten material is cut, it is easy to stick to the blades, and the plastic products are prone to overheating and embrittlement, resulting in products not meeting the standards and causing waste of raw materials.

[0004] Therefore, a cutting device for waste plastics is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the utility model is to provide a cutting device for waste plastics, which is easy to cut waste plastics, not easy to make plastics stick to the blades, and at the same time, avoids overheating and embrittlement of plastic products and reduces waste.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A cutting device for waste plastics, including a cutting box, a feeding port is communicated with the top of the cutting box, the feeding port is of a V-shaped structure, a crushing roller is arranged in parallel along the length direction inside the feeding port and is distributed front and back, a crushing tooth is arranged on the outer wall of the crushing roller, a first motor is arranged on one side of the feeding port, and the output end of the first motor is fixedly connected with the other end of one of the crushing rollers through a rotating shaft;

[0007] A receiving groove, a driving shaft arranged in the receiving groove, and a cutting knife are arranged inside the cutting box; the receiving groove is in a hollow cylindrical shape and has an open top, and the receiving groove is rotationally connected with the cutting box; the cutting knife is arranged on the driving shaft; a second motor and a third motor are respectively arranged on both sides of the cutting box, the output end of the second motor is fixedly connected with one end of the driving shaft through a rotating shaft, and the output end of the third motor is fixedly connected with the receiving groove through a rotating shaft; the bottom of the cutting box is of a V-shaped shape, and a discharge port is arranged at the bottom of the cutting box.

[0008] In order to facilitate the flushing of the shredded waste plastics in the receiving tank, as an optimization of the cutting device for waste plastics of the present utility model, flushing nozzles are provided on both sides of the top of the receiving tank, and through holes are provided on the outer wall of the receiving tank.

[0009] In order to play a filtering role, as an optimization of the cutting device for waste plastics of the present utility model, a cover body is provided on the discharge port, a connecting rod and a filter net are provided in the discharge port, the connecting rod is vertically arranged at the bottom inside the cover body, and the filter net is arranged at the upper end of the connecting rod;

[0010] A drain pipe is provided on the outer wall of the discharge port, and the drain pipe is located below the filter net.

[0011] In order to recycle the water in the cutting tank and reduce the waste of water resources, as an optimization of the cutting device for waste plastics of the present utility model, a water source pipe communicating with the flushing nozzle is provided on one side of the cutting tank, a pumping pump is provided on the cutting tank, and the input end and the output end of the pumping pump are respectively communicated with the drain pipe and the flushing nozzle through pipelines.

[0012] In order to facilitate the waste plastics in the feeding port to fall into the receiving tank, as an optimization of the cutting device for waste plastics of the present utility model, guide plates fixedly connected to the inner wall of the feeding port are obliquely and symmetrically arranged on both sides below the two crushing rollers along the length direction.

[0013] In order to view the internal situation of the cutting tank, as an optimization of the cutting device for waste plastics of the present utility model, a viewing window is provided on the cutting tank.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By starting the first motor, the two crushing rollers rotate relatively, and the crushing teeth on the crushing rollers are easy to perform preliminary crushing treatment on the waste plastics. The crushed waste plastics fall into the receiving tank through the open mouth. By starting the second motor, the driving shaft drives the cutting knife to rotate at a high speed, and the cutting knife on the outer wall of the driving shaft can rotate at a high speed to perform secondary cutting treatment on the plastics; the waste plastics do not need to be melted and can be directly cut, and it is not easy for the plastics to adhere to the blade. At the same time, it avoids the overheating and embrittlement of plastic products, reduces waste, and improves the cutting efficiency and quality;

[0016] And by delivering water into the flushing nozzle, the waste plastics in the receiving tank can be flushed, which is conducive to the subsequent processing and production of the waste plastics;

[0017] By starting the third motor, the receiving tank rotates, so that the cut waste plastics are poured out of the receiving tank and discharged through the discharge port at the bottom of the cutting tank, which is conducive to the automatic cleaning of the cut waste plastics. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is Figure 1 schematic structural diagram in the A-A direction of;

[0020] Figure 3 is Figure 1 schematic structural diagram in the B-B direction of.

[0021] In the figure: 1, cutting box; 2, feeding port; 3, crushing roller; 4, crushing teeth; 5, first motor; 6, receiving tank; 7, drive shaft; 8, cutting knife; 9, second motor; 10, third motor; 11, discharge port; 12, flushing spray pipe; 13, through hole; 14, cover body; 15, connecting rod; 16, filter screen; 17, drain pipe; 18, water source pipe; 19, suction pump; 20, guide plate; 21, viewing window. Detailed Description of the Preferred Embodiment

[0022] Please refer to Figures 1 to 3 , a cutting device for waste plastics, including a cutting box 1. A feeding port 2 is communicated with the top of the cutting box 1. The feeding port 2 has a V-shaped structure. Inside the feeding port 2, crushing rollers 3 are arranged in parallel along the length direction and distributed front and back. Crushing teeth 4 are arranged on the outer wall of the crushing rollers 3. A first motor 5 is arranged on one side of the feeding port 2. The output end of the first motor 5 is fixedly connected to the other end of one of the crushing rollers 3 through a rotating shaft;

[0023] Inside the cutting box 1, there are a receiving tank 6, a drive shaft 7 arranged in the receiving tank 6, and a cutting knife 8; The receiving tank 6 is in a hollow cylindrical shape and has an open top. The receiving tank 6 is rotatably connected to the cutting box 1; The cutting knife 8 is arranged on the drive shaft 7; A second motor 9 and a third motor 10 are respectively arranged on both sides of the cutting box 1. The output end of the second motor 9 is fixedly connected to one end of the drive shaft 7 through a rotating shaft, and the output end of the third motor 10 is fixedly connected to the receiving tank 6 through a rotating shaft; The bottom of the cutting box 1 is in a V-shaped shape, and a discharge port 11 is arranged at the bottom of the cutting box 1.

[0024] In this embodiment: Waste plastics are put into the feeding port. The first motor 5 is started, and the two crushing rollers 3 rotate relative to each other. The crushing teeth 4 on the crushing rollers 3 are easy to initially crush the waste plastics, which is easy to process large-volume waste plastics. The crushed waste plastics fall into the receiving tank 6 through the open mouth. The second motor 9 is started, and the drive shaft 7 drives the cutting knife 8 to rotate at a high speed. The cutting knife 8 on the outer wall of the drive shaft 7 can rotate at a high speed to perform secondary cutting on the plastics, improving the cutting efficiency and quality. After cutting, the third motor 10 is started, and the receiving tank 6 rotates to pour out the cut waste plastics from the receiving tank 6 and discharge them through the discharge port 11 at the bottom of the cutting box 1, which is easy to automatically clean the cut waste plastics.

[0025] As a technical optimization scheme of the present utility model, flushing nozzles 12 are arranged on both sides of the top of the receiving tank 6, and through holes 13 are formed in the outer wall of the receiving tank 6.

[0026] In this embodiment: The flushing nozzles 12 are easy to flush and clean the cut plastics (to avoid that foreign matters inside the plastics in some containers are not thoroughly cleaned), and the through holes 13 are easy to drain water out of the receiving tank 6.

[0027] As a technical optimization scheme of the present utility model, a cover body 14 is arranged on the discharge port 11, and a connecting rod 15 and a filter net 16 are arranged inside the discharge port 11. The connecting rod 15 is vertically arranged at the bottom inside the cover body 14, and the filter net 16 is arranged at the upper end of the connecting rod 15;

[0028] A drain pipe 17 is arranged on the outer wall of the discharge port 11, and the drain pipe 17 is located below the filter net 16.

[0029] In this embodiment: The filter net 16 plays a filtering role to prevent the shredded plastics from being discharged together with the sewage through the drain pipe 17. Opening the cover body 14 is easy for the shredded plastics in the cutting box 1 to be discharged.

[0030] As a technical optimization scheme of the present utility model, a water source pipe 18 communicated with the flushing nozzles 12 is arranged on one side of the cutting box 1, and a suction pump 19 is arranged on the cutting box 1. The input end and the output end of the suction pump 19 are respectively communicated with the drain pipe 17 and the flushing nozzles 12 through pipelines.

[0031] In this embodiment: The water source pipe 18 is communicated with the flushing nozzles 12, which is easy to convey water into the flushing nozzles 12, and can flush the cut waste plastics. Starting the suction pump 19 is easy to circulate and pump the water in the cutting box 1 to flush the cut plastics.

[0032] As a technical optimization scheme of the present utility model, guide plates 20 fixedly connected to the inner wall of the feeding port 2 are inclined and symmetrically arranged on both sides below the two crushing rollers 3 along the length direction.

[0033] In this embodiment, the deflector 20 guides the plastic at the feeding port 2, facilitating the treated plastic in the feeding port 2 to fall into the receiving tank 6.

[0034] As a technical optimization scheme of the present utility model, a viewing window 21 is provided on the cutting box 1.

[0035] In this embodiment, the viewing window 21 can directly view the internal situation of the cutting box 1.

[0036] Working principle: First, the waste plastic is put into the feeding port 2, the first motor 5 is started, and the two crushing rollers 3 rotate relatively. The crushing teeth 4 on the crushing rollers 3 are easy to initially crush the waste plastic, facilitating the treatment of large-volume waste plastic; the crushed waste plastic falls into the receiving tank 6 through the open mouth. The second motor 9 is started, and the drive shaft 7 drives the cutting knife 8 to rotate at a high speed. The cutting knife 8 on the outer wall of the drive shaft 7 can rotate at a high speed to perform secondary cutting on the plastic, improving the cutting efficiency and quality. And water is conveyed into the flushing spray pipe 12, and the water sprays out from the flushing spray pipe 12, facilitating the cleaning of the shredded waste plastic and facilitating subsequent processing and production; after cutting, the third motor 10 is started, and the receiving tank 6 rotates, so that the cut waste plastic is poured out from the receiving tank 6 and discharged through the discharge port 11 at the bottom of the cutting box 1, facilitating the automatic cleaning of the cut waste plastic.

[0037] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waste plastic cutting device, characterized in that: The invention comprises a cutting box (1), wherein the top of the cutting box (1) is connected to a feeding port (2), wherein the feeding port (2) is of a V-shaped structure, wherein crushing rollers (3) are arranged in parallel in the longitudinal direction and are distributed front and back, and wherein the outer wall of the crushing roller (3) is provided with crushing teeth (4), and a first motor (5) is arranged on one side of the feeding port (2), wherein the output end of the first motor (5) is fixedly connected to the other end of one of the crushing rollers (3) via a rotating shaft; The interior of the cutting box (1) is provided with a receiving groove (6), a driving shaft (7) arranged in the receiving groove (6), and a cutting knife (8); the receiving groove (6) is in a hollow cylindrical shape and has an opening at the top, and the receiving groove (6) is rotatably connected to the cutting box (1); the cutting knife (8) is arranged on the driving shaft (7); a second motor (9) and a third motor (10) are respectively arranged on both sides of the cutting box (1), the output end of the second motor (9) is fixedly connected to one end of the driving shaft (7) through a rotating shaft, and the output end of the third motor (10) is fixedly connected to the receiving groove (6) through a rotating shaft; the bottom of the cutting box (1) is in a V-shape, and a discharge port (11) is arranged at the bottom of the cutting box (1).

2. A waste plastic cutting device according to claim 1, characterized in that: Flushing nozzles (12) are arranged on both sides of the top of the receiving tank (6), and a through hole (13) is opened on the outer wall of the receiving tank (6).

3. The waste plastic cutting device according to claim 1, characterized in that: The discharge port (11) is provided with a cover body (14), and a connecting rod (15) and a filter screen (16) are provided inside the discharge port (11), wherein the connecting rod (15) is vertically arranged at the bottom inside the cover body (14), and the filter screen (16) is arranged at the upper end of the connecting rod (15); The outer wall of the discharge port (11) is provided with a drainage pipe (17), and the drainage pipe (17) is located below the filter screen (16).

4. A waste plastic cutting device according to claim 3, characterized in that: A water source pipe (18) connected to the flushing nozzle (12) is provided on one side of the cutting box (1), and a pump (19) is provided on the cutting box (1), and the input end and output end of the pump (19) are respectively connected to the drain pipe (17) and the flushing nozzle (12) through pipelines.

5. The waste plastic cutting device according to claim 1, characterized in that: Guide plates (20) fixedly connected to the inner wall of the feeding port (2) are arranged symmetrically and inclined along the length direction on both sides below the two crushing rollers (3).

6. The waste plastic cutting device according to claim 1, characterized in that: The cutting box (1) is provided with a viewing window (21).

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