Plastic granulator with screening structure

Abstract

The utility model discloses a plastic granulator with screening structure, including the bottom plate, the bottom plate top surface fixedly connected with the granulator main part, the granulator main part outlet fixedly connected with the connecting pipe, the connecting pipe surface fixedly connected with the limit ring, the connecting pipe outlet rotatably connected with the screening cylinder, and plastic particles pass through the connecting pipe and enter the screening cylinder, and starting drive assembly drives the screening cylinder to rotate along the fixed frame inner wall and the connecting pipe surface, can screen the large volume defective product, and the plastic particles fall down to the fixed assembly, and starting the vibrating screen mechanism passes through the resilience of the elastic limit mechanism, and drives the fixed assembly longitudinal vibration, can screen the small volume defective product in the plastic particles, realizes the target of being convenient for the multistage screening work of the plastic particles of the granulator output, avoids the problem that the existing screening structure mostly can only carry out single screening work, thereby leads to the production quality of plastic particles greatly reduces.

Description

Technical Field

[0001] This utility model relates to the field of plastic granulator technology, and in particular to a plastic granulator with a screening structure. Background Technology

[0002] A plastic granulator is a device that processes plastic raw materials into granules, mainly used for the recycling and reuse of waste plastics and the granulation of virgin materials. Its core component is the extruder, which melts and plasticizes the plastic through a screw extrusion system, and then cools and cuts it into uniform granules.

[0003] After the plastic granules are cut by the granulator, they usually need to be screened to ensure the uniformity of the production. However, the screening structure in the existing granulators can usually only perform a single screening operation. Single screening can mostly only screen large defective products and cannot accurately screen small defective products, which greatly reduces the production quality of plastic granules. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic granulator with a screening structure to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic granulator with a screening structure includes a base plate, a granulator body fixedly connected to the top surface of the base plate, a connecting pipe fixedly connected to the discharge end of the granulator body, a limiting ring fixedly connected to the surface of the connecting pipe, a screening cylinder rotatably connected to the discharge end of the connecting pipe, and the inner wall of the screening cylinder rotatably connected to the surface of the limiting ring, a discharge pipe fixedly connected to the inner wall of the screening cylinder, a fixing frame rotatably connected to the surface of the screening cylinder, and the fixing frame fixedly connected to the top surface of the base plate, an elastic limiting mechanism provided on the top surface of the base plate, a fixing component provided above the base plate, a vibrating screening mechanism provided above the base plate, and a driving component provided inside the fixing frame.

[0007] Preferably, the elastic limiting mechanism consists of a limiting cylinder, a limiting shaft, and a spring. The limiting cylinder is fixedly connected to the top surface of the base plate, the limiting shaft is slidably connected to the inner wall of the limiting cylinder, and the spring is fixedly connected to the top surface of the base plate.

[0008] Preferably, the fixing assembly consists of a fixing box, a limiting baffle, and a discharge pipe. The fixing box is fixedly connected to the top of the limiting shaft, the limiting baffle is fixedly connected to the top surface of the fixing box, and the discharge pipe is fixedly connected to the inner wall of the fixing box.

[0009] Preferably, the vibrating screening mechanism consists of a screening screen, a discharge baffle, a fixed sleeve, and a vibrating motor. The screening screen is fixedly connected to the inner wall of the fixed box, the discharge baffle is fixedly connected to the top surface of the screening screen and the discharge baffle is fixedly connected to the inner wall of the fixed box, the fixed sleeve is fixedly connected to the bottom surface of the fixed box, and the vibrating motor is fixedly connected to the inner wall of the fixed sleeve.

[0010] Preferably, the drive assembly consists of a servo motor, a gear, and a gear ring. The servo motor is fixedly connected to the inner wall of the fixed frame, the inner wall of the gear is fixedly connected to the output end of the servo motor, and the inner wall of the gear ring is fixedly connected to the surface of the screening cylinder, and the inner wall of the gear ring meshes with the gear.

[0011] Preferably, there are multiple springs, and all of the multiple springs are located on the top surface of the base plate.

[0012] Preferably, the fixing box is rectangular and made of metal.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In this plastic granulator with a screening structure, plastic granules enter the screening cylinder through a connecting pipe. Activating the drive assembly drives the screening cylinder to rotate along the inner wall of the fixed frame and the surface of the connecting pipe, thus screening out large-volume defective products. The plastic granules fall downwards into the fixed assembly. Activating the vibrating screening mechanism, through the rebound force of the elastic limiting mechanism, drives the fixed assembly to vibrate longitudinally, thus screening out small-volume defective products among the plastic granules. This achieves the goal of facilitating multi-stage screening of the plastic granules produced by the granulator, avoiding the problem that existing screening structures can mostly only perform single-stage screening, resulting in a significant reduction in the production quality of plastic granules. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the structure of this utility model;

[0015] Figure 2 This is an enlarged view of the structure at point A of this utility model;

[0016] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 4 This is an enlarged view of the structure at point B of this utility model;

[0018] Figure 5 This is an enlarged view of the structure at point C of this utility model.

[0019] In the diagram: 1. Base plate; 2. Granulator body; 3. Connecting pipe; 4. Limiting ring; 5. Screening cylinder; 6. Discharge pipe; 7. Fixing frame; 8. Limiting cylinder; 9. Limiting shaft; 10. Spring; 11. Fixing box; 12. Limiting baffle; 13. Discharge pipe; 14. Screening screen; 15. Discharge baffle; 16. Fixing sleeve; 17. Vibration motor; 18. Servo motor; 19. Gear; 20. Gear ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figure 1-5 A plastic granulator with a screening structure includes a base plate 1. A granulator body 2 is fixedly connected to the top surface of the base plate 1. A connecting pipe 3 is fixedly connected to the discharge end of the granulator body 2. A limit ring 4 is fixedly connected to the surface of the connecting pipe 3. A screening cylinder 5 is rotatably connected to the discharge end of the connecting pipe 3, and the inner wall of the screening cylinder 5 is rotatably connected to the surface of the limit ring 4. A discharge pipe 6 is fixedly connected to the inner wall of the screening cylinder 5. A fixing frame 7 is rotatably connected to the surface of the screening cylinder 5 and is fixedly connected to the top surface of the base plate 1. An elastic limiting mechanism is provided on the top surface of the base plate 1. The elastic limiting mechanism consists of a limiting cylinder 8, a limiting shaft 9, and springs 10. There are multiple springs 10, and all of the springs 10 are located on the top surface of the base plate 1 to assist the vibration of the fixing box 11, thereby improving vibration stability. The limiting cylinder 8 is fixedly connected to the top surface of the base plate 1. The bottom plate 1 is fixedly connected to the bottom surface, the limiting shaft 9 is slidably connected to the inner wall of the limiting cylinder 8, the spring 10 is fixedly connected to the top surface of the bottom plate 1 to assist in supporting the fixed box 11 and improve vibration stability. A fixed component is set above the bottom plate 1, and a vibrating screening mechanism is set above the bottom plate 1. The vibrating screening mechanism consists of a screening screen plate 14, a discharge baffle 15, a fixed sleeve 16 and a vibrating motor 17. The screening screen plate 14 is fixedly connected to the inner wall of the fixed box 11, the discharge baffle 15 is fixedly connected to the top surface of the screening screen plate 14 and the discharge baffle 15 is fixedly connected to the inner wall of the fixed box 11, the fixed sleeve 16 is fixedly connected to the bottom surface of the fixed box 11, and the vibrating motor 17 is fixedly connected to the inner wall of the fixed sleeve 16 for secondary screening of plastic granules, which facilitates the removal of small-volume defective products. A drive component is set inside the fixed frame 7.

[0022] Specifically, the fixing assembly consists of a fixing box 11, a limiting baffle 12, and a discharge pipe 13. The fixing box 11 is rectangular and made of metal. The metal fixing box 11 has higher strength, is less prone to deformation and damage under stress, and is more durable. The fixing box 11 is fixedly connected to the top of the limiting shaft 9, the limiting baffle 12 is fixedly connected to the top surface of the fixing box 11, and the discharge pipe 13 is fixedly connected to the inner wall of the fixing box 11. It is used to collect falling plastic particles and prevent the plastic particles from scattering.

[0023] Specifically, the drive assembly consists of a servo motor 18, a gear 19, and a gear ring 20. The servo motor 18 is fixedly connected to the inner wall of the fixed frame 7, the inner wall of the gear 19 is fixedly connected to the output end of the servo motor 18, and the inner wall of the gear ring 20 is fixedly connected to the surface of the screening cylinder 5. The inner wall of the gear ring 20 meshes with the gear 19 to drive the screening cylinder 5 to rotate, thereby improving the screening efficiency.

[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0025] In use: First, the extruded and cooled plastic is granulated by the granulator body 2. After granulation, the plastic granules enter the screening cylinder 5 through the connecting pipe 3. The servo motor 18 is started to drive the gear 19 to rotate. Through the meshing of the gear 19 and the gear ring 20, the screening cylinder 5 is driven to rotate along the inner wall of the fixed frame 7 and the surface of the connecting pipe 3. Through the rotation of the screening cylinder 5, large-volume defective products in the plastic granules can be screened. After preliminary screening, the plastic granules fall downward into the fixed box 11. The vibration motor 17 is started to drive the fixed box 11 to vibrate longitudinally through the fixed sleeve 16. Through the vibration of the fixed box 11, the limiting shaft 9 slides along the inner wall of the limiting cylinder 8, and at the same time, the spring 10 is squeezed. Through the rebound of the spring 10, the fixed box 11 and the screening screen plate 14 can be vibrated. Through the vibration of the screening screen plate 14, small-volume defective products in the plastic granules can be screened. Defective products of different sizes are discharged through the discharge pipe 6 and the discharge pipe 13 respectively. At the same time, the plastic granules are limited and discharged through the discharge baffle 15.

[0026] In summary, this plastic granulator with a screening structure allows plastic granules to enter the screening cylinder 5 through the connecting pipe 3. Activating the drive assembly rotates the screening cylinder 5 along the inner wall of the fixed frame 7 and the surface of the connecting pipe 3, thus screening out large-volume defective products. The plastic granules fall downwards into the fixed assembly. Activating the vibrating screening mechanism, through the rebound force of the elastic limiting mechanism, drives the fixed assembly to vibrate longitudinally, thereby screening out small-volume defective products from the plastic granules. This achieves the goal of facilitating multi-stage screening of the plastic granules produced by the granulator, avoiding the problem that existing screening structures can only perform single-stage screening, which leads to a significant reduction in the production quality of plastic granules. This addresses the problems mentioned in the background section.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic granulator with a screening structure, comprising a base plate (1), characterized in that, The granulator body (2) is fixedly connected to the top surface of the base plate (1). The discharge end of the granulator body (2) is fixedly connected to the connecting pipe (3). The surface of the connecting pipe (3) is fixedly connected to the limiting ring (4). The discharge end of the connecting pipe (3) is rotatably connected to the screening cylinder (5). The inner wall of the screening cylinder (5) is rotatably connected to the surface of the limiting ring (4). The inner wall of the screening cylinder (5) is fixedly connected to the discharge pipe (6). The surface of the screening cylinder (5) is rotatably connected to the fixing frame (7). The fixing frame (7) is fixedly connected to the top surface of the base plate (1). The top surface of the base plate (1) is provided with an elastic limiting mechanism. A fixing component is provided above the base plate (1). A vibrating screening mechanism is provided above the base plate (1). A driving component is provided inside the fixing frame (7).

2. The plastic granulator with a screening structure according to claim 1, characterized in that, The elastic limiting mechanism consists of a limiting cylinder (8), a limiting shaft (9), and a spring (10). The limiting cylinder (8) is fixedly connected to the top surface of the base plate (1), the limiting shaft (9) is slidably connected to the inner wall of the limiting cylinder (8), and the spring (10) is fixedly connected to the top surface of the base plate (1).

3. A plastic granulator with a screening structure according to claim 2, characterized in that, The fixing assembly consists of a fixing box (11), a limiting baffle (12), and a discharge pipe (13). The fixing box (11) is fixedly connected to the top of the limiting shaft (9), the limiting baffle (12) is fixedly connected to the top surface of the fixing box (11), and the discharge pipe (13) is fixedly connected to the inner wall of the fixing box (11).

4. A plastic granulator with a screening structure according to claim 3, characterized in that, The vibrating screening mechanism consists of a screening screen (14), a discharge baffle (15), a fixed sleeve (16), and a vibrating motor (17). The screening screen (14) is fixedly connected to the inner wall of the fixed box (11). The discharge baffle (15) is fixedly connected to the top surface of the screening screen (14) and the discharge baffle (15) is fixedly connected to the inner wall of the fixed box (11). The fixed sleeve (16) is fixedly connected to the bottom surface of the fixed box (11). The vibrating motor (17) is fixedly connected to the inner wall of the fixed sleeve (16).

5. A plastic granulator with a screening structure according to claim 1, characterized in that, The drive assembly consists of a servo motor (18), a gear (19), and a gear ring (20). The servo motor (18) is fixedly connected to the inner wall of the fixed frame (7). The inner wall of the gear (19) is fixedly connected to the output end of the servo motor (18). The inner wall of the gear ring (20) is fixedly connected to the surface of the screening cylinder (5), and the inner wall of the gear ring (20) meshes with the gear (19).

6. A plastic granulator with a screening structure according to claim 2, characterized in that, The number of springs (10) is multiple, and all of the springs (10) are located on the top surface of the base plate (1).

7. A plastic granulator with a screening structure according to claim 3, characterized in that, The fixing box (11) is rectangular and made of metal.

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