Plastic granulator for recycling waste plastic

Abstract

The utility model discloses a plastic granulator for recycling waste plastics, and relates to the technical field of plastic processing. The plastic granulator for recycling the waste plastic comprises a base, the plastic drying assembly comprises a fixed cylinder, the inner side of the fixed cylinder is rotationally connected with a plastic drying cylinder, the inner wall of the plastic drying cylinder is fixedly connected with two first spiral blades, the inner wall of the plastic drying cylinder is fixedly connected with a plurality of second spiral blades, and the inner wall of the plastic drying cylinder is fixedly connected with a plurality of third spiral blades. A heating pipe is fixedly connected into a heating pipe connecting support, through rotation of the plastic drying cylinder, plastic is conveniently conveyed through a first spiral blade, plastic particles are blocked through a second spiral blade, the time for the plastic particles to be held in the plastic drying cylinder can be prolonged, the drying efficiency is improved, and the situation of uneven drying is avoided; and it is avoided that when plastic particles are formed, water vapor enters a plastic injection molding machine, and the plastic forming quality is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastics processing, especially to a plastic granulator for recycling waste plastics. BACKGROUND

[0002] The plastic granulator is suitable for granulating waste films, waste silk, waste woven bags, waste plastic bottles, waste plastic barrels, plates and broken materials. In order to assist in the stable recycling of waste plastics, a plastic granulator for recycling waste plastics is needed.

[0003] When recycling waste plastics, the recycled waste plastics often need to be cleaned to avoid the influence of dirt on subsequent recycling. The recycled waste plastics contain some moisture. If the moisture cannot be completely removed during granulation, the produced plastic particles will contain moisture. These plastic particles containing moisture will produce a large amount of water vapor during heating and plasticizing. The water vapor mixes with the molten fluid plastic and then enters the plastic molding. This will cause problems such as bubbles and cracking in the molded plastic products, affecting the quality of the products. Therefore, a new solution is proposed. SUMMARY

[0004] The utility model discloses a plastic granulator for recycling waste plastics, which can solve the problem that the produced plastic particles contain moisture. These plastic particles containing moisture will produce a large amount of water vapor during heating and plasticizing. The water vapor mixes with the molten fluid plastic and then enters the plastic molding. This will cause problems such as bubbles and cracking in the molded plastic products, affecting the quality of the products.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic granulator for recycling waste plastics, comprising a base;

[0006] A plastic drying assembly is arranged on the base. The plastic drying assembly comprises a fixed cylinder arranged at the upper end of the base. The inner side of the fixed cylinder is rotatably connected with a plastic drying cylinder. The openings of the fixed cylinder and the plastic drying cylinder are both upwardly inclined.

[0007] A second driving motor is fixedly connected to the left side of the fixed cylinder. The plastic drying cylinder is fixedly connected with the output end of the second driving motor. The upper end of the fixed cylinder is fixedly connected with a feeding cylinder.

[0008] A plurality of through grooves are formed on the surface of the plastic drying cylinder. The inner wall of the plastic drying cylinder is fixedly connected with two first spiral blades. The inner wall of the plastic drying cylinder is fixedly connected with a plurality of second spiral blades. The inner wall of the plastic drying cylinder is fixedly connected with a plurality of third spiral blades. A second limiting ring is rotatably sleeved on the surface of the plastic drying cylinder.

[0009] The surface of the second limiting ring is fixedly connected with a heating pipe connecting support, and the inside of the heating pipe connecting support is fixedly connected with a heating pipe.

[0010] Preferably, the spiral directions of the plurality of second spiral blades are opposite to those of the first spiral blade and the third spiral blade.

[0011] Preferably, the upper end of the base is fixedly connected with a first fixing support, and the surface of the fixed cylinder is fixedly connected with a first limiting ring, which is fixedly connected with the first fixing support.

[0012] The upper end of the base is fixedly connected with a second fixing support, and the second limiting ring is fixedly connected with the second fixing support.

[0013] Preferably, the upper end of the base is fixedly connected with a reinforcing plate, and the left and right ends of the reinforcing plate are fixedly connected with the first fixing support and the second fixing support, respectively.

[0014] Preferably, the inner wall of the feeding cylinder is fixedly connected with a plastic feeding frame, the front end of the feeding cylinder is fixedly connected with a first driving motor, and the inside of the feeding cylinder is rotatably connected with two plastic crushing rollers, the surfaces of the two plastic crushing rollers are fixedly connected with gears, and the two gears are meshed with each other.

[0015] The output end of the first driving motor is fixedly connected with a corresponding plastic crushing roller.

[0016] Preferably, the right end of the second fixing support is fixedly connected with a discharging plate.

[0017] Compared with the prior art, the plastic granulator for recycling waste plastics has the following beneficial effects:

[0018] 1. The plastic granulator for recycling waste plastics, through the rotation of the plastic drying cylinder, the first spiral blade can conveniently convey the plastic, the second spiral blade can block the plastic particles, the time of the plastic particles remaining in the plastic drying cylinder can be increased, the drying efficiency can be further improved, the continuous conveying effect of the first spiral blade and the reverse pushing force of the second spiral blade can ensure that the materials are uniformly distributed in the plastic drying cylinder, the plastic particles can be conveniently dried by the heating pipe, the plastic particles can be uniformly dried, the situation of uneven drying can be avoided, and water vapor can be prevented from entering the inside of the plastic injection molding machine when the plastic particles are formed, so that the quality of plastic forming is affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in connection with the drawings and embodiments:

[0020] Figure 1 It is a structure schematic view of a plastic granulator for recycling waste plastics.

[0021] Figure 2 It is the schematic view of the plastic drying cylinder of the utility model;

[0022] Figure 3 It is the schematic view of the second spiral blade of the utility model;

[0023] Figure 4 It is the schematic view of the feeding cylinder of the utility model.

[0024] The signs: 1, base; 2, plastic injection molding machine; 3, first fixed support; 4, first limit ring; 5, fixed cylinder; 6, feeding cylinder; 7, plastic drying cylinder; 8, second fixed support; 9, second limit ring; 10, heating pipe connecting support; 11, heating pipe; 12, discharge plate; 13, reinforcing plate; 14, plastic feeding frame; 15, first drive motor; 16, plastic crushing roller; 17, gear; 18, second drive motor; 19, through slot; 20, first spiral blade; 21, second spiral blade; 22, third spiral blade. DETAILED DESCRIPTION

[0025] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0026] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0027] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, and above, below, within and the like are understood as including the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0028] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0029] Please refer to Figures 1-4The utility model provides a technical scheme: a plastic granulator for recycling waste plastics, which comprises a base 1, a plastic drying assembly, the plastic drying assembly is arranged on the base 1, the plastic drying assembly includes a fixed cylinder 5, the fixed cylinder 5 is arranged at the upper end of the base 1, the inner side of the fixed cylinder 5 is rotatably connected with a plastic drying cylinder 7, the opening of the fixed cylinder 5 and the plastic drying cylinder 7 is all inclined upward, the left side of the fixed cylinder 5 is fixedly connected with a second drive motor 18, the plastic drying cylinder 7 is fixedly connected with the output end of the second drive motor 18, the upper end of the fixed cylinder 5 is fixedly connected with a feeding cylinder 6, a plurality of through grooves 19 are formed in the surface of the plastic drying cylinder 7, the inner wall of the plastic drying cylinder 7 is fixedly connected with two first spiral blades 20, the inner wall of the plastic drying cylinder 7 is fixedly connected with a plurality of second spiral blades 21, the inner wall of the plastic drying cylinder 7 is fixedly connected with a plurality of third spiral blades 22, the surface of the plastic drying cylinder 7 is rotatably sleeved with a second limiting ring 9, the surface of the second limiting ring 9 is fixedly connected with a heating pipe connecting support 10, the inside of the heating pipe connecting support 10 is fixedly connected with a heating pipe 11, and the heating pipe 11 extends to the inside of the plastic drying cylinder 7.

[0030] The spiral directions of the plurality of second spiral blades 21 are opposite to those of the first spiral blades 20 and the third spiral blades 22.

[0031] The upper end of the base 1 is fixedly connected with a first fixed support 3, the surface of the fixed cylinder 5 is fixedly connected with a first limiting ring 4, the first limiting ring 4 is fixedly connected with the first fixed support 3, the upper end of the base 1 is fixedly connected with a second fixed support 8, and the second limiting ring 9 is fixedly connected with the second fixed support 8.

[0032] The upper end of the base 1 is fixedly connected with a reinforcing plate 13, and the left and right ends of the reinforcing plate 13 are fixedly connected with the first fixed support 3 and the second fixed support 8 respectively.

[0033] The inner wall of the feeding cylinder 6 is fixedly connected with a plastic feeding frame 14, the front end of the feeding cylinder 6 is fixedly connected with a first drive motor 15, the inside of the feeding cylinder 6 is rotatably connected with two plastic crushing rollers 16, the surfaces of the two plastic crushing rollers 16 are fixedly connected with gears 17, the two gears 17 are meshed with each other, and the output end of the first drive motor 15 is fixedly connected with the corresponding plastic crushing roller 16.

[0034] The right end of the second fixed support 8 is fixedly connected with a discharge plate 12.

[0035] When using this device, the cleaned waste plastic is first added to the inside of the feeding cylinder 6 through the plastic feeding frame 14. The first drive motor 15 is started to drive the plastic crushing roller 16 to rotate. The plastic crushing roller 16 drives the gear 17 to rotate. Through the meshing of the two gears 17, it is easy to drive the two plastic crushing rollers 16 to rotate and make the two plastic crushing rollers 16 rotate in opposite directions, which is convenient for crushing the plastic and crushing the waste plastic into plastic particles. The plastic particles are then guided into the fixed cylinder 5 through the feeding cylinder 6. The second drive motor 18 is started to drive the plastic drying cylinder 7 to rotate inside the fixed cylinder 5. During the rotation of the plastic drying cylinder 7, the second fixed bracket 8 and the second limiting ring 9 limit the plastic drying cylinder 7 to ensure stable rotation inside the fixed cylinder 5 and improve the stability of the plastic drying cylinder 7 during rotation.

[0036] The rotation of the plastic drying cylinder 7 connects the power supply to the heating tube 11, drying the plastic inside the drying cylinder 7. This facilitates the removal of moisture from the surface of the plastic granules, allowing them to drain from the groove 19 on the surface of the drying cylinder 7 into its interior. During rotation, the drying cylinder 7 drives the first spiral blade 20, the second spiral blade 21, and the third spiral blade 22 inside it. Since the spiral direction of the second spiral blade 21 is opposite to that of the first and third spiral blades 20, it facilitates the conveying of the plastic granules by the first spiral blade 20. When the plastic granules reach the second spiral blade 21, it blocks them, promoting mixing. By setting the second spiral blade 21 to the opposite spiral direction of the first spiral blade 20, the time the plastic granules remain inside the drying cylinder 7 is increased, further improving drying efficiency. The continuous conveying action of the first spiral blade 20 and the reverse pushing force of the second spiral blade 21 ensure uniform distribution of the material within the drying cylinder 7, achieving uniform drying of the plastic granules and preventing uneven drying.

[0037] When the plastic granules are conveyed to the opening of the plastic drying cylinder 7 by the first spiral blade 20, the plastic drying cylinder 7 drives the third spiral blade 22 to rotate, so that the dried plastic granules can be discharged from the plastic drying cylinder 7 and guided by the discharge plate 12, so that the plastic granules can be guided into the plastic injection molding machine 2 and the plastic injection molding machine 2 can be started to extrude the plastic.

[0038] Furthermore, the rotation of the plastic drying cylinder 7 facilitates the conveying of plastic by the first spiral blade 20 and the blocking of plastic particles by the second spiral blade 21, which increases the time that plastic particles remain inside the plastic drying cylinder 7, further improving drying efficiency. The continuous conveying action of the first spiral blade 20 and the reverse pushing force of the second spiral blade 21 ensure that the material is evenly distributed inside the plastic drying cylinder 7, which facilitates the drying of plastic particles by the heating tube 11, achieving uniform drying of plastic particles and avoiding uneven drying. This also prevents water vapor from entering the interior of the plastic injection molding machine 2 during plastic particle molding, thus affecting the quality of plastic molding.

[0039] By using the first fixed bracket 3, the second fixed bracket 8, and the reinforcing plate 13, the first fixed bracket 3, the second fixed bracket 8, and the reinforcing plate 13 form an "I"-shaped structure. The "I"-shaped structure can form a stable frame, effectively resist the influence of external forces on the structure, and improve the overall stability and durability. The "I"-shaped structure increases the support points, so that when the entire structure is subjected to heavy objects or external forces, the load can be distributed more evenly, thereby improving the load-bearing capacity. This structural design can optimize the overall mechanical properties, making the structure more stable under stress, less prone to deformation or damage, and facilitating the stability of the device during use.

[0040] Structural Description: Base 1: Serves as the basic support structure for the entire device, providing an installation platform for other components and ensuring the overall stability of the device;

[0041] Plastic injection molding machine 2: Extrudes dried plastic granules to process the plastic into the required shape;

[0042] First fixed bracket 3: It is fixedly connected to the first limiting ring 4 on the surface of the fixed cylinder 5, and plays a role in fixing and supporting the fixed cylinder 5, thereby enhancing the stability of the fixed cylinder 5;

[0043] First limiting ring 4: set on the surface of fixed cylinder 5, cooperates with first fixed bracket 3 to realize the connection between fixed cylinder 5 and first fixed bracket 3, and assists in fixing fixed cylinder 5;

[0044] Fixed cylinder 5: Provides rotational support for plastic drying cylinder 7, houses plastic drying cylinder 7, and is connected to feed cylinder 6 to guide plastic particles into plastic drying cylinder 7;

[0045] Feed cylinder 6: serves as the inlet for waste plastics to enter the device, and is equipped with a plastic crushing roller 16 inside to crush the waste plastics and guide the crushed plastic particles into the fixed cylinder 5.

[0046] Plastic drying drum 7: It rotates inside the fixed drum 5. The first spiral blade 20, the second spiral blade 21 and the third spiral blade 22 inside cooperate to realize the conveying, stirring and drying of plastic particles. The through groove 19 on the surface facilitates the discharge of dried plastic particles.

[0047] The second fixed bracket 8 is fixedly connected to the second limiting ring 9, which plays a limiting and supporting role for the plastic drying cylinder 7, ensuring the stability of the plastic drying cylinder 7 during rotation.

[0048] Second limiting ring 9: Rotatably sleeved on the surface of plastic drying cylinder 7, cooperating with second fixed bracket 8 to assist in fixing plastic drying cylinder 7, and at the same time providing an installation position for heating tube connecting bracket 10;

[0049] Heating tube connecting bracket 10: Fix heating tube 11, fix heating tube 11 in a suitable position so that it extends into the plastic drying cylinder 7 to dry plastic granules;

[0050] Heating element 11: After being powered on, it generates heat to dry the plastic granules inside the plastic drying cylinder 7 and remove the moisture from the surface of the plastic granules.

[0051] Discharge plate 12: guides the dried plastic granules discharged from the plastic drying cylinder 7 and directs the plastic granules into the plastic injection molding machine 2;

[0052] Reinforcing plate 13: It is fixedly connected to the first fixed bracket 3 and the second fixed bracket 8, and together with the first fixed bracket 3 and the second fixed bracket 8, it forms an "I"-shaped structure to improve the overall stability and load-bearing capacity of the device;

[0053] Plastic feed box 14: serves as the inlet for adding waste plastic into the feed cylinder 6, facilitating the addition of waste plastic;

[0054] First drive motor 15: provides power for the rotation of plastic crushing roller 16, drives plastic crushing roller 16 to rotate, and realizes the crushing of waste plastic;

[0055] Plastic crushing roller 16: Rotates inside the feed cylinder 6. The two plastic crushing rollers 16 rotate in opposite directions to crush the waste plastic into plastic granules.

[0056] Gear 17: Fixed on the surface of plastic crushing roller 16, two gears 17 mesh with each other, and the rotation of one plastic crushing roller 16 drives the other plastic crushing roller 16 to rotate in the opposite direction.

[0057] The second drive motor 18 provides power for the rotation of the plastic drying cylinder 7, driving the plastic drying cylinder 7 to rotate inside the fixed cylinder 5;

[0058] Groove 19: set in the surface of the plastic drying cylinder 7, facilitate the plastic particles after drying from the plastic drying cylinder 7 inside discharge;

[0059] The first spiral blade 20: fixed in the inner wall of the plastic drying cylinder 7, when the plastic drying cylinder 7 rotates, the plastic particles are transported from the feeding end to the discharging end;

[0060] The second spiral blade 21: fixed in the inner wall of the plastic drying cylinder 7, its spiral direction is opposite to the first spiral blade 20 and the third spiral blade 22, the plastic particles are blocked and mixed, the residence time of the plastic particles in the plastic drying cylinder 7 is increased, the drying efficiency is improved, and the uniform distribution of the material is ensured;

[0061] The third spiral blade 22: fixed in the inner wall of the plastic drying cylinder 7, when the plastic drying cylinder 7 rotates, the plastic particles after drying are discharged from the opening of the plastic drying cylinder 7.

[0062] The above embodiment of the utility model is explained in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by the ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A plastic granulator for recycling waste plastics, characterized by: The base (1) is provided with a plastic drying assembly, and the plastic drying assembly is provided with a fixing cylinder (5) and a plastic drying cylinder (7). The left side of the fixing cylinder (5) is fixedly connected with a second driving motor (18), the plastic drying cylinder (7) is fixedly connected with the output end of the second driving motor (18), the upper end of the fixing cylinder (5) is fixedly connected with a feeding cylinder (6). The surface of the plastic drying cylinder (7) is provided with a plurality of through grooves (19), the inner wall of the plastic drying cylinder (7) is fixedly connected with two first spiral blades (20), the inner wall of the plastic drying cylinder (7) is fixedly connected with a plurality of second spiral blades (21), the inner wall of the plastic drying cylinder (7) is fixedly connected with a plurality of third spiral blades (22), and the surface of the plastic drying cylinder (7) is rotatably sleeved with a second limiting ring (9). The surface of the second limiting ring (9) is fixedly connected with a heating pipe connecting support (10), the inner portion of the heating pipe connecting support (10) is fixedly connected with a heating pipe (11), and the heating pipe (11) extends into the plastic drying cylinder (7). The spiral directions of the plurality of second spiral blades (21) are opposite to those of the first spiral blades (20) and the third spiral blades (22).

2. The plastic granulator for recycling waste plastics as claimed in claim 1 wherein: The upper end of the base (1) is fixedly connected with a first fixing support (3), the surface of the fixing cylinder (5) is fixedly connected with a first limiting ring (4), and the first limiting ring (4) is fixedly connected with the first fixing support (3).

3. The plastic granulator for recycling waste plastics as claimed in claim 1 wherein: The upper end of the base (1) is fixedly connected with a second fixing support (8), and the second limiting ring (9) is fixedly connected with the second fixing support (8). The upper end of the base (1) is fixedly connected with a reinforcing plate (13), and the left and right ends of the reinforcing plate (13) are fixedly connected with the first fixing support (3) and the second fixing support (8) respectively.

4. The plastic granulator for recycling waste plastics as claimed in claim 3 wherein: The inner wall of the feeding cylinder (6) is fixedly connected with a plastic feeding frame (14), the front end of the feeding cylinder (6) is fixedly connected with a first driving motor (15), the inner portion of the feeding cylinder (6) is rotatably connected with two plastic crushing rollers (16), the surfaces of the two plastic crushing rollers (16) are fixedly connected with gears (17), and the two gears (17) are meshed with each other.

5. The plastic granulator for recycling waste plastics as claimed in claim 1 wherein: The output end of the first driving motor (15) is fixedly connected with the corresponding plastic crushing roller (16). The right end of the second fixing support (8) is fixedly connected with a discharging plate (12).

6. The plastic granulator for recycling waste plastics as claimed in claim 3 wherein: ​

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