A plastic pellet recycling device of a plastic pelletizer

Abstract

The utility model provides a kind of plastic granulator's plastic particle recovery device, belong to plastic particle recovery field, including recycling bin and the feed hopper being set on recycling bin, recycling bin lower side wall is equipped with discharge port, recycling bin inner wall lower side is equipped with the flow guide plate matched with discharge port, recycling bin inner wall is equipped with first inclined plane and second inclined plane, first inclined plane and second inclined plane top are equipped with first opening and second opening respectively, first inclined plane is equipped with multiple groups of resistance flow strip, second inclined plane is evenly equipped with multiple groups of slow flow plate, further include: cooling mechanism: cooling mechanism is arranged in recycling bin, cooling mechanism can cool plastic particle, the utility model is cooled by being equipped with cooling mechanism, can be cooled to the plastic particle that enters into recycling bin, by setting resistance flow strip and slow flow plate, under the cooperation of resistance flow strip and slow flow plate can make adhesion rate drop, can extend the residence time of plastic particle simultaneously, guarantee that plastic particle and cold gas are fully contacted.

Description

Technical Field

[0001] This utility model relates to the field of plastic pellet recycling, and more specifically, to a plastic pellet recycling device for a plastic pelletizing machine. Background Technology

[0002] Plastic granulation is a process in plastic machinery processing. The main component of the granulator extruder is the plastic extruder. The plastic granules that have just come out of the granulator are at a relatively high temperature, so the plastic granules have not been fully shaped and therefore will stick together.

[0003] Currently, plastic granules need to be cooled during recycling. However, the cooling is uneven, and traditional air cooling only cools the surface. The plastic granules stay in the recycling bin for a short time, resulting in poor cooling effect. This can easily lead to thermal oxidation and degradation of recycled materials, as well as a decline in mechanical properties. How to invent a plastic granule recycling device for plastic granulators to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a plastic pellet recycling device for a plastic granulator, which aims to improve the current situation where plastic pellets need to be cooled during recycling, but the cooling air is uneven. Traditional air cooling only cools the surface, and the plastic pellets stay in the recycling box for a short time, resulting in poor cooling effect and easy thermal oxidation degradation of recycled materials, leading to a decline in mechanical properties.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a plastic pellet recycling device for a plastic granulator, including a recycling box and a feeding funnel disposed on the recycling box. A discharge port is provided on the lower side wall of the recycling box, and a guide plate cooperating with the discharge port is provided on the lower inner wall of the recycling box. A first inclined plate and a second inclined plate are provided on the inner wall of the recycling box, with a first opening and a second opening respectively at the top of the first and second inclined plates. Multiple sets of flow-blocking strips are provided on the first inclined plate, and multiple sets of flow-retarding plates are evenly distributed on the second inclined plate. The device also includes a cooling mechanism disposed inside the recycling box, capable of cooling the plastic pellets.

[0007] Preferably, the cooling mechanism includes two sets of cooling pipes provided on the rear side wall of the recycling bin, each set of cooling pipes having five sets of nozzles on its outer side wall, a connecting pipe between one end of the two sets of cooling pipes, a pump body provided on the side wall of the recycling bin, an air inlet pipe at one end of the pump body, and the air inlet pipe being connected to the connecting pipe at one end, a connecting rod provided on the outer side wall of each set of cooling pipes, one end of the connecting rods being movably inserted through the rear side wall of the recycling bin and connected to an external movable plate, and an electric telescopic rod provided on the rear side wall of the recycling bin, one end of the electric telescopic rod being connected to the side wall of the movable plate.

[0008] Preferably, the connecting pipe is a rubber hose.

[0009] Preferably, the multiple sets of flow-damping plates are staggered on the top of the second inclined plate, and the flow-damping plates are inclined on the top of the second inclined plate.

[0010] Preferably, multiple sets of the flow-blocking strips are arranged in a linear array on the top of the first inclined plate, and the flow-blocking strips are arranged in a triangular shape.

[0011] The beneficial effects of this utility model are:

[0012] This invention, by setting up a cooling mechanism, can cool the plastic particles entering the recycling bin. By setting up flow-blocking strips and flow-retarding plates, the adhesion rate can be reduced, and the residence time of the plastic particles can be extended, ensuring that the plastic particles are in full contact with the cold air, improving the cooling effect, and greatly reducing the thermal oxidation degradation rate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cooling mechanism of this utility model;

[0016] Figure 3 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0017] In the diagram: 1. Recycling bin; 2. Guide plate; 3. Second inclined plate; 4. Flow-retardant plate; 5. Cooling mechanism; 500. Cooling pipe; 501. Connecting pipe; 502. Pump body; 503. Air inlet pipe; 504. Nozzle; 505. Connecting rod; 506. Electric telescopic rod; 507. Movable plate; 6. First inclined plate; 7. Flow-blocking strip; 8. First opening; 9. Feed funnel; 10. Second opening. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example, refer to Figures 1-3 A plastic pellet recycling device for a plastic granulator includes a recycling box 1 and a feed funnel 9 disposed on the recycling box 1. A discharge port is provided on the lower side wall of the recycling box 1. A guide plate 2 that cooperates with the discharge port is provided on the lower inner wall of the recycling box 1. A first inclined plate 6 and a second inclined plate 3 are provided on the inner wall of the recycling box 1. A first opening 8 and a second opening 10 are respectively provided on the top of the first inclined plate 6 and the second inclined plate 3. Multiple sets of flow-blocking strips 7 are provided on the first inclined plate 6. Multiple sets of flow-retarding plates 4 are evenly provided on the second inclined plate 3. The device also includes a cooling mechanism 5: the cooling mechanism 5 is disposed in the recycling box 1 and can cool the plastic pellets.

[0020] The cooling mechanism 5 includes two sets of cooling pipes 500 located on the rear side wall of the recycling bin 1. Each set of cooling pipes 500 has five sets of nozzles 504 on its outer side wall. A connecting pipe 501 is provided between one end of the two sets of cooling pipes 500. The connecting pipe 501 is a rubber hose, which allows the connecting pipe 501 to bend when the cooling pipes 500 move without affecting their movement. A pump body 502 is located on the side wall of the recycling bin 1. An air inlet pipe 503 is located at one end of the pump body 502. One end of the air inlet pipe 503 is connected to the connecting pipe 501. A connecting rod 505 is provided on the outer side wall of each set of cooling pipes 500. One end of the connecting rod 505 movably passes through the rear side wall of the recycling bin 1 and is connected to an external movable plate 507. An electric telescopic rod 506 is located on the rear side wall of the recycling bin 1. One end of the electric telescopic rod 506 is connected to the side wall of the movable plate 507.

[0021] Multiple sets of flow-damping plates 4 are staggered at the top of the second inclined plate 3, and the flow-damping plates 4 are inclined at the top of the second inclined plate 3.

[0022] It should be noted that the staggered flow buffers 4 form a zigzag path, which can reduce the sliding speed of plastic particles, thereby extending the contact time with the cold air and improving the cooling effect.

[0023] Multiple sets of flow-blocking strips 7 are arranged in a linear array on the top of the first inclined plate 6, and the flow-blocking strips 7 are arranged in a triangular shape.

[0024] It should be noted that the triangular flow barrier 7 can disperse the agglomerated plastic particles, and after dispersion, the particles are screened out by the first opening 8 to remove oversized particles.

[0025] Working principle: High-temperature particles fall from the feed hopper 9 to the first inclined plate 6. The triangular flow-blocking strip 7 cuts the molten clumps. After the particles are dispersed, they are screened through the first opening 8 to remove oversized particles. The particles slide into the second inclined plate 3. The staggered flow-slowing plate 4 forms a zigzag path to prolong the residence time. The pump body 502 draws in cold air, which is diverted to the cooling pipe 500 through the air inlet pipe 503 and the connecting pipe 501. The electric telescopic rod 506 drives the movable plate 507 to move the cooling pipe 500 back and forth. The nozzle 504 sprays in a scanning manner to improve the cooling effect. After cooling, the particles are guided to the discharge port by the guide plate 2.

[0026] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic pellet recycling device for a plastic pellet mill, comprising a recycling bin (1) and a feed funnel (9) disposed on the recycling bin (1), wherein a discharge port is provided on the lower side wall of the recycling bin (1), and a guide plate (2) cooperating with the discharge port is provided on the lower inner wall of the recycling bin (1), characterized in that, The recycling bin (1) has a first inclined plate (6) and a second inclined plate (3) on its inner wall. The first inclined plate (6) and the second inclined plate (3) have a first opening (8) and a second opening (10) on their tops, respectively. The first inclined plate (6) has multiple sets of flow-blocking strips (7), and the second inclined plate (3) has multiple sets of flow-retarding plates (4) evenly distributed. The bin also includes: Cooling mechanism (5): The cooling mechanism (5) is installed inside the recycling bin (1) and is capable of cooling plastic particles.

2. The plastic pellet recycling device for a plastic granulator according to claim 1, characterized in that, The cooling mechanism (5) includes two sets of cooling pipes (500) provided on the rear side wall of the recycling box (1). Each set of cooling pipes (500) has five sets of nozzles (504) on its outer side wall. A connecting pipe (501) is provided between one end of each set of cooling pipes (500). A pump body (502) is provided on the side wall of the recycling box (1). An air inlet pipe (503) is provided at one end of the pump body (502). One end of the air inlet pipe (503) is connected to the connecting pipe (501). A connecting rod (505) is provided on the outer side wall of each set of cooling pipes (500). One end of the connecting rod (505) is movably inserted through the rear side wall of the recycling box (1) and connected to an external movable plate (507). An electric telescopic rod (506) is provided on the rear side wall of the recycling box (1). One end of the electric telescopic rod (506) is connected to the side wall of the movable plate (507).

3. The plastic pellet recycling device for a plastic granulator according to claim 2, characterized in that, The connecting pipe (501) is a rubber hose.

4. The plastic pellet recycling device for a plastic granulator according to claim 1, characterized in that, Multiple sets of the flow-retarding plates (4) are staggered on the top of the second inclined plate (3), and the flow-retarding plates (4) are inclined on the top of the second inclined plate (3).

5. A plastic pellet recycling device for a plastic granulator according to claim 1, characterized in that, Multiple sets of the flow-blocking strips (7) are arranged in a linear array on the top of the first inclined plate (6), and the flow-blocking strips (7) are arranged in a triangular shape.

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