A multi-stage magnetic separation device for plastic particles

Abstract

The utility model relates to the field of plastic recycling and regeneration processing, especially to a plastic particle processing multistage magnetic separation device, including the mounting seat, is provided with conveying assembly on the mounting seat, is provided with the mounting bracket on the mounting seat upper portion, the right side of mounting bracket upper side is installed with the drive motor, three screw rods are rotatably connected in the top of mounting bracket, and the drive motor output shaft is connected with the first belt pulley assembly between the right end of middle screw rod, and the second belt pulley assembly is connected between the middle screw rod and the screw rod of both sides, and the screw rod is threadedly connected with the magnetic attraction plate, and the both sides of mounting seat are all connected with the placing plate, and the collecting frame is all installed on the placing plate.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling and reprocessing, and in particular to a multi-stage magnetic separation device for processing plastic particles. Background Technology

[0002] In the field of plastic recycling and reprocessing, mixed metal impurities are a key issue affecting product quality. Traditional magnetic separation equipment mostly uses fixed or single-stage permanent magnet separators, which have significant drawbacks such as limited removal efficiency, easy saturation, and the need for frequent shutdowns for manual cleaning. Especially when processing large quantities of fine or highly mobile plastic particles, the adsorption surface of fixed magnetic rods or plate magnetic separators will be quickly covered by metal impurities, resulting in a weakening or even shielding of the magnetic field. As a result, metal impurities in subsequent materials cannot be effectively captured, which seriously restricts production continuity and brings quality risks. Problems such as incomplete scraping or mechanical interference exist, making it difficult to achieve efficient and uninterrupted automated operation.

[0003] Therefore, in order to address the above problems, a multi-stage magnetic separation device for processing plastic particles is now being developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing devices in practical application, this utility model provides a multi-stage magnetic separation device for processing plastic particles.

[0005] The technical implementation scheme of this utility model is as follows: A multi-stage magnetic separation device for processing plastic particles includes a mounting base with a conveying assembly. A mounting frame is mounted on the upper part of the mounting base, and a drive motor is mounted on the upper right side of the mounting frame. Three lead screws are rotatably connected to the top of the mounting frame. A first pulley assembly connects the output shaft of the drive motor to the right end of the middle lead screw, and a second pulley assembly connects the middle lead screw to the lead screws on both sides. Magnetic suction plates are threadedly connected between the lead screws, with two magnetic suction plates on each lead screw for alternating adsorption processing to improve magnetic separation efficiency. Placement plates are connected to both sides of the mounting base, and collection frames are mounted on each placement plate.

[0006] More preferably, the system also includes fixed posts, with fixed posts provided on both the front and rear sides of the collection frame. Each fixed post is rotatably connected to a scraper. The right-hand rod-shaped part of the scraper is made of metal. The scraper has an L-shaped structure on the outside and an upwardly inclined scraping structure on the inside. The scraping structure is made of soft material. Magnetic blocks are provided on both the front and rear sides of the collection frame for adsorbing the scraper. Each magnetic plate has a first push plate that contacts and pushes the upper end of the L-shaped structure, causing the scraper to flip upward and enter the working state. A second push plate is provided on the outside of each magnetic plate, which can squeeze and push the scraping structure. A torsion spring connects the scraper to the adjacent fixed post.

[0007] More preferably, it also includes mounting posts, with mounting posts provided on both the front and rear sides of the collection frame. Each mounting post is rotatably connected to a locking block, and each locking block has a protrusion on its inner side. The protrusion is used to limit the outer metal structure of the scraper to prevent the magnetic suction plate from rebounding and resetting when it comes into contact with the inner scraping structure of the scraper. A spring is provided between each locking block and the collection frame.

[0008] More preferably, it also includes a ramp frame, which is disposed at the bottom of the collection frame.

[0009] More preferably, the conveying assembly includes a power source and a conveyor belt.

[0010] More preferably, the lower part of the second push plate is a sloping structure, which is used to squeeze the scraping structure to move downward and reset.

[0011] By adopting the above technical solution, compared with the prior art, this utility model has the following advantages: This invention utilizes a multi-screw design linked to a drive motor to drive the magnetic plates in alternating motion, forming multi-level staggered magnetic separation zones. This significantly improves the efficiency and continuity of adsorption processing. The scraper mechanism is linked to the movement of the magnetic plates, enabling automated scraping and cleaning of the magnetic plate surface. This effectively prevents magnetic field shielding. Combined with the locking block limit and inclined frame design, it ensures the stability and reliability of the cleaning action and the concentrated collection of impurities, significantly improving the quality of plastic purification and production efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the first part of this utility model.

[0014] Figure 3This is a cross-sectional three-dimensional structural diagram of the first part of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the second part of this utility model.

[0016] Figure 5 This is an enlarged three-dimensional structural diagram of part A of this utility model.

[0017] Figure 6 This is a schematic diagram of part of the structure of this utility model.

[0018] Figure 7 This is a schematic diagram of the second partial cross-sectional three-dimensional structure of this utility model.

[0019] The components in the attached diagram are labeled as follows: 1. Mounting base, 2. Conveying assembly, 3. Mounting frame, 4. Drive motor, 5. First pulley assembly, 6. Lead screw, 7. Second pulley assembly, 8. Magnetic suction plate, 9. Placement plate, 10. Collection frame, 11. Scraper frame, 12. Fixing column, 13. Magnetic block, 14. First push plate, 15. Second push plate, 16. Torsion spring, 17. Mounting column, 18. Locking block, 19. Spring, 20. Inclined frame. Detailed Implementation

[0020] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0021] A multi-stage magnetic separation device for processing plastic particles, such as Figures 1-7 As shown, the device includes a mounting base 1, a conveying assembly 2 on the mounting base 1, the conveying assembly 2 including a transmission power source and a conveyor belt, a mounting frame 3 on the upper part of the mounting base 1, a drive motor 4 on the upper right side of the mounting frame 3, three lead screws 6 rotatably connected to the top of the mounting frame 3, a first pulley assembly 5 connecting the output shaft of the drive motor 4 to the right end of the middle lead screw 6, a second pulley assembly 7 connecting the middle lead screw 6 to the lead screws 6 on both sides, and magnetic suction plates 8 threadedly connected between the lead screws 6. Each lead screw 6 is provided with two magnetic suction plates 8 for alternating adsorption processing to improve magnetic separation efficiency. The mounting base 1 has placement plates 9 connected to both the left and right sides. Collection frames 10 are installed on each placement plate 9. Fixed posts 12 are set on both the front and rear sides of the collection frames 10. Scraper frames 11 are rotatably connected to each fixed post 12. The right rod-shaped part of the scraper frame 11 is made of metal. The scraper frame 11 has an L-shaped structure on the outside and an upwardly inclined scraping structure on the inside. The scraping structure is made of soft material. Magnetic blocks 13 are set on both the front and rear sides of the scraping structure collection frame 10. Magnetic blocks 13 can attract the scraper frame 11. A first push plate 14 is set on each magnetic plate 8. The first push plate 14 can contact and push the upper end of the L-shaped structure, so that the scraper frame 11 flips upward and enters the working state. A second push plate 15 is set on the outside of each magnetic plate 8. The second push plate 15 can squeeze and push the scraping structure. The lower part of the second push plate 15 has an inclined structure for squeezing the scraping structure to move downward and reset. A torsion spring 16 is connected between the scraper 11 and the adjacent fixed column 12. Mounting columns 17 are provided on both the front and rear sides of the collection frame 10. A locking block 18 is rotatably connected to each mounting column 17. A protrusion is provided on the inner side of each locking block 18. The protrusion is used to limit the metal structure at the outer end of the scraper 11 to prevent the magnetic suction plate 8 from rebounding and resetting when it comes into contact with the scraping structure on the inner side of the scraper 11. A spring 19 is provided between the locking block 18 and the collection frame 10. The inclined frame 20 is located at the bottom inside the collection frame 10.

[0022] It should be noted that the entire device is stably supported by the mounting base 1. The conveying component 2, as the core part of material transfer, is driven by the transmission power source to continuously rotate the conveyor belt, which conveys the plastic particles to be processed from left to right. The mounting frame 3 is straddling the conveyor belt. The drive motor 4 on the upper right side of the frame is connected to the first pulley assembly 5 through the output shaft, which in turn drives the middle lead screw 6 to rotate. Then, the second pulley assembly 7 synchronously drives the lead screws 6 on both sides to achieve the linkage rotation of the three lead screws 6. Each lead screw 6 has two magnetic plates 8 threaded on it. These magnetic plates 8 move axially when the lead screw 6 rotates, thus interleaving the magnetic separation areas. When plastic particles pass under the magnetic suction plate 8 via the conveyor belt, the mixed metal impurities are attracted and captured by the strong magnetic field generated by the magnetic suction plate 8. Because the magnetic suction plate 8 moves alternately and covers different areas, a continuous and multi-layered magnetic separation process is achieved, significantly improving impurity removal efficiency and processing capacity. Collection frames 10 are installed on the placement plates 9 on both sides of the mounting base 1 to collect the purified plastic particles and the removed metal impurities, respectively. To further optimize the cleaning effect, fixed posts 12 are provided on both the front and rear sides of the collection frame 10. The scraper 11 is hinged to the fixed posts 12 by a torsion spring 16. Its right rod-shaped part is made of metal, and the overall shape is L-shaped. The magnetic suction plate 8 has an L-shaped structure, and the internal scraping part is made of soft material that is inclined upwards. When the magnetic suction plate 8 moves towards the collection frame 10, the first push plate 14 on it will contact and push the upper end of the L-shaped scraper 11, so that it overcomes the force of the torsion spring 16 and flips upwards to the working position. At this time, the scraping structure is close to the surface of the magnetic suction plate 8. At the same time, the lower part of the second push plate 15 on the magnetic suction plate 8 is designed with a sloping structure. During the movement, it will squeeze the scraping structure and cause the scraper 11 to return to the lower position. This reciprocating action realizes the scraping operation of the impurities adsorbed on the surface of the magnetic suction plate 8. In the working state, the scraper 11 is attracted and fixed by the magnetic block 13 on the collection frame 10 to prevent it from shaking randomly. In addition, the collection frame 10 is equipped with mounting posts 17 at the front and rear, and rotatable locking blocks 18 are connected to them by springs 19. The inner protrusion of the locking block 18 can lock the metal part at the outer end of the scraper 11, providing limit support when the scraper 11 is working, preventing it from rebounding due to the contact pressure of the magnetic suction plate 8. The scraped metal impurities eventually fall into the collection frame 10. The inclined frame 20 set at the bottom of the frame helps the impurities to gather in the middle, which is convenient for centralized processing. The whole system achieves efficient and automated magnetic separation and purification of plastic particles through the precise cooperation of motor drive, mechanical linkage and magnetic adsorption.

[0023] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A multi-stage magnetic separation device for processing plastic particles, characterized in that: The device includes a mounting base (1), a conveying assembly (2) on the mounting base (1), a mounting frame (3) on the upper part of the mounting base (1), a drive motor (4) on the upper right side of the mounting frame (3), three lead screws (6) rotatably connected to the top of the mounting frame (3), a first pulley assembly (5) connecting the output shaft of the drive motor (4) to the right end of the middle lead screw (6), a second pulley assembly (7) connecting the middle lead screw (6) to the lead screws (6) on both sides, and magnetic suction plates (8) threadedly connected between the lead screws (6). Each lead screw (6) is provided with two magnetic suction plates (8) for alternating adsorption processing to improve magnetic separation efficiency. Placement plates (9) are connected to both the left and right sides of the mounting base (1), and collection frames (10) are installed on each placement plate (9).

2. A multi-stage magnetic separation device for processing plastic particles according to claim 1, characterized in that: It also includes fixed posts (12), and fixed posts (12) are provided on both the front and rear sides of the collection frame (10). Each fixed post (12) is rotatably connected to a scraper (11). The right rod-shaped part of the scraper (11) is made of metal. The outside of the scraper (11) is an L-shaped structure, and the inside is an upwardly inclined scraping structure. The scraping structure is made of soft material. Magnetic blocks (13) are provided on both the front and rear sides of the collection frame (10). The magnetic blocks (13) can attract the collected materials. The scraper (11) is subjected to adsorption treatment. Each of the magnetic suction plates (8) is provided with a first push plate (14). The first push plate (14) can contact and push the upper end of the L-shaped structure, so that the scraper (11) flips upward and enters the working state. Each of the magnetic suction plates (8) is provided with a second push plate (15). The second push plate (15) can squeeze and push the scraping structure. Each scraper (11) and the adjacent fixed column (12) are connected by a torsion spring (16).

3. A multi-stage magnetic separation device for processing plastic particles according to claim 2, characterized in that: It also includes mounting posts (17), and mounting posts (17) are provided on both the front and rear sides of the collection frame (10). Each mounting post (17) is rotatably connected to a locking block (18). Each locking block (18) has a protrusion on its inner side. The protrusion is used to limit the outer metal structure of the scraper (11) to prevent the magnetic suction plate (8) from rebounding and resetting when it comes into contact with the inner scraping structure of the scraper (11). A spring (19) is provided between the locking block (18) and the collection frame (10).

4. A multi-stage magnetic separation device for processing plastic particles according to claim 3, characterized in that: It also includes ramps (20), which are all located at the bottom of the collection box (10).

5. A multi-stage magnetic separation device for processing plastic particles according to claim 1, characterized in that: The conveying assembly (2) includes a power source and a conveyor belt.

6. A multi-stage magnetic separation device for processing plastic particles according to claim 2, characterized in that: The lower part of the second push plate (15) is a sloping structure, which is used to squeeze the scraping structure to move downward and reset.

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