Plastic particle crusher with screening function
By integrating screening and secondary crushing functions, the plastic granule crusher solves the problems of high cost, large footprint, and low efficiency of traditional crushing equipment, achieving efficient screening and stable equipment operation, and ensuring product quality and production continuity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG TONGSHUN PLASTIC PROD CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional plastic pellet crushers lack integrated crushing, screening, and secondary crushing functions, resulting in high equipment costs, large footprint, low production efficiency, and easy clogging of the screen, which affects the continuity of production.
Design a pulverizer that integrates screening and secondary crushing functions. It adopts a rotating screening cylinder and spiral lifting ribs, combined with an ultrasonic vibrator to prevent clogging, and uses a polytetrafluoroethylene wear-resistant layer to extend the equipment's lifespan and improve the degree of automation.
This has resulted in reduced equipment costs, increased production efficiency, better product particle size consistency, stronger continuity in the screening process, and reduced equipment maintenance time.
Smart Images
Figure CN224271305U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic granule processing equipment, and specifically discloses a plastic granule crusher with screening function. Background Technology
[0002] In the plastics processing industry, the crushing of plastic granules is a crucial production step. Traditional plastic granulator crushers typically only have a single crushing function, producing plastic granules of varying sizes that cannot directly meet the particle size requirements of subsequent production. This necessitates additional screening equipment, which not only increases equipment costs and floor space but also prolongs the production process and reduces efficiency. Furthermore, during the crushing process, some granules are prone to insufficient crushing and require secondary crushing. However, secondary crushing often requires manual re-feeding of insufficiently crushed granules, a cumbersome and inefficient operation. Moreover, during the screening process, the screens are prone to clogging, affecting screening effectiveness and production continuity.
[0003] Therefore, there is an urgent need for a plastic granule crusher that integrates crushing, screening, and secondary crushing, and can effectively avoid screen clogging, thereby improving production efficiency and product quality. Utility Model Content
[0004] This utility model proposes a crusher for plastic granules with screening function. The crusher integrates screening and secondary crushing functions, and achieves efficient screening by combining the rotation of the screening cylinder and the spiral lifting ribs. It uses an ultrasonic vibrator to prevent clogging, and the wear-resistant polytetrafluoroethylene layer extends the service life of the equipment. It also has a high degree of automation, thereby achieving the effects of reducing costs, improving production efficiency, ensuring product quality, reducing maintenance and facilitating operation.
[0005] This utility model is implemented as follows: a crusher for plastic granules with screening function, characterized in that it includes a horizontally arranged screening box and a screening cylinder; the bottom of the screening box is inclined, and a main discharge port is provided at the lower end; the screening cylinder is horizontally and rotatably arranged inside the screening box; a feed pipe is inclined upward on one side of the screening box, and the lower end of the feed pipe is connected to one end of the screening cylinder; the upper end of the feed pipe is connected to a crushing chamber, and a conical feeding cylinder is fixed at the top of the crushing chamber; the lower end of the conical feeding cylinder... The end extends into the crushing chamber; the crushing chamber is provided with a first set of crushing rollers and a second set of crushing rollers rotating in opposite directions from top to bottom; a guide plate is provided above the second set of crushing rollers and inclined upwards, and is fixed to the inner wall of the crushing chamber; a guide pipe is provided on the other side of the screening box, inclined downwards, and communicates with the screening screen cylinder, and the guide pipe is adjacent to the main discharge port; a secondary crushing chamber is provided at the lower end of the guide pipe; a third set of crushing rollers rotating in opposite directions is provided in the secondary crushing chamber; and a secondary discharge port is provided at the lower end of the secondary crushing chamber.
[0006] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function is provided with a meshing toothed sleeve on the outer circumference of the screening cylinder, a drive wheel is connected to the meshing toothed sleeve, and a drive motor is provided on the screening box, with the output shaft of the drive motor being coaxially and fixedly connected to the drive wheel.
[0007] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function is provided with annular sleeves on both sides inside the screening box, and the outer ends of the screening screen cylinder are fixedly connected to the annular sleeves by bearings.
[0008] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function is provided with spirally arranged lifting ribs on the inner wall of the screening cylinder.
[0009] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function is provided with an ultrasonic vibrator on the top of the screening box.
[0010] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function is provided with a receiving bin below the main discharge port and the auxiliary discharge port.
[0011] As a preferred embodiment of the present invention, a crusher for plastic granules with screening function, wherein the surfaces of the feed pipe, the guide pipe and the guide plate are all covered with a polytetrafluoroethylene wear-resistant layer.
[0012] The beneficial effects of this utility model are:
[0013] 1. By integrating crushing, screening, and secondary crushing functions into one unit, the number of equipment is reduced, equipment costs and floor space are lowered, the production process is simplified, and production efficiency is improved.
[0014] 2. The rotation of the screening cylinder and the setting of the spiral lifting ribs ensure that the particles are in full contact with the screen, which improves the screening efficiency and effect and ensures the consistency of product particle size.
[0015] 3. The application of ultrasonic vibrators effectively prevents the screening cylinder from clogging, ensures the continuity of the screening process, reduces equipment downtime for cleaning, and further improves production efficiency. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 for Figure 1 A schematic diagram of the AA-direction cross-section structure.
[0019] Figure 3 This is a schematic diagram of the structure of the screening screen cylinder and the meshing tooth sleeve of this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of the guide plate and the polytetrafluoroethylene wear-resistant layer of this utility model.
[0021] Figure 5 This is a rear view structural diagram of the screening box of this utility model.
[0022] The markings in the diagram are: 1. Screening box; 2. Screening screen cylinder; 3. Main discharge port; 4. Feed pipe; 5. Crushing chamber; 6. Conical feeding cylinder; 7. First set of crushing rollers; 8. Second set of crushing rollers; 9. Guide plate; 10. Guide pipe; 11. Secondary crushing chamber; 12. Third set of crushing rollers; 13. Auxiliary discharge port; 14. Meshing tooth sleeve; 15. Drive wheel; 16. Drive motor; 17. Annular sleeve; 18. Bearing; 19. Lifting rib; 20. Ultrasonic vibrator; 21. Receiving bin; 22. Polytetrafluoroethylene wear-resistant layer. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0024] Please see Figure 1-5 A plastic granule crusher with screening function includes a horizontally arranged screening box 1 and a screening cylinder 2. The bottom of the screening box 1 is inclined, and a main discharge port 3 is provided at the lower end. The screening cylinder 2 is horizontally and rotatably arranged inside the screening box 1. A feed pipe 4 is inclined upward on one side of the screening box 1, and the lower end of the feed pipe 4 is connected to one end of the screening cylinder 2. The upper end of the feed pipe 4 is connected to a crushing chamber 5. A conical feeding cylinder 6 is fixed at the top of the crushing chamber 5, and the lower end of the conical feeding cylinder 6 extends into the interior of the crushing chamber 5. Inside the 5, from top to bottom, there are a first set of crushing rollers 7 and a second set of crushing rollers 8 that rotate relative to each other; above the second set of crushing rollers 8, there is a guide plate 9 that is fixed to the inner wall of the crushing chamber 5; on the other side of the screening box 1, there is a guide pipe 10 that is inclined downward and communicates with the screening screen cylinder 2, and the guide pipe 10 is adjacent to the main discharge port 3. A secondary crushing chamber 11 is provided at the lower end of the guide pipe 10. Two third sets of crushing rollers 12 that rotate relative to each other are provided in the secondary crushing chamber 11. A secondary discharge port 13 is provided at the lower end of the secondary crushing chamber 11.
[0025] In this embodiment: plastic granules are fed into the crushing chamber 5 through the conical feeding cylinder 6, and are initially crushed under the relative rotation of the first set of crushing rollers 7 and the second set of crushing rollers 8; the crushed granules are guided by the guide plate 9 and enter the screening cylinder 2 through the feed pipe 4; the screening cylinder 2 rotates under the drive of the drive motor 16, the drive wheel 15 and the meshing gear sleeve 14, and the internal spiral lifting ribs 19 drive the granules to move. Particles that meet the particle size requirements fall into the bottom of the screening box 1 through the screening cylinder 2 and are discharged through the main discharge port 3; larger particles continue to move in the screening cylinder 2 and enter the secondary crushing chamber 11 through the guide pipe 10, where they are crushed a second time under the relative rotation of the third set of crushing rollers 12. The particles after secondary crushing are discharged through the auxiliary discharge port 13; the ultrasonic vibrator 20 at the top of the screening box 1 generates vibration to prevent the screening cylinder 2 from clogging.
[0026] As a technical optimization of this utility model, the outer circumferential wall of the screening cylinder 2 is provided with a meshing toothed sleeve 14, and a drive wheel 15 is connected to the meshing toothed sleeve 14. The screening box 1 is provided with a drive motor 16, and the output shaft of the drive motor 16 is coaxially fixedly connected to the drive wheel 15.
[0027] In this embodiment, the meshing sleeve 14, the drive wheel 15 and the drive motor 16 work together to provide stable rotational power for the screening cylinder 2, ensuring the reliability and continuity of the screening process.
[0028] As a technical optimization of this utility model, the screening box 1 has annular sleeves 17 on both sides inside, and the outer ends of the screening cylinder 2 are fixedly connected to the annular sleeves 17 by bearings 18.
[0029] In this embodiment, the arrangement of the annular sleeve 17 and the bearing 18 ensures that the screening cylinder 2 remains stable during rotation, reduces shaking, and improves the stability and service life of the equipment.
[0030] As a technical optimization of this utility model, the inner wall of the screening cylinder 2 is provided with spirally arranged lifting ribs 19.
[0031] In this embodiment, the spiral lifting ribs 19 on the inner wall of the screening cylinder 2 can drive the particles to move inside the cylinder, so that the particles can fully contact the screen, improve screening efficiency and effect, and prevent particles from accumulating inside the cylinder.
[0032] As a technical optimization of this utility model, the top of the screening box 1 is provided with an ultrasonic vibrator 20.
[0033] In this embodiment: the ultrasonic vibrator 20 is activated. The ultrasonic vibration can effectively prevent the screening cylinder 2 from clogging, ensure the smooth progress of the screening process, and improve production efficiency.
[0034] As a technical optimization of this utility model, a receiving bin 21 is provided below the main discharge port 3 and the auxiliary discharge port 13.
[0035] In this embodiment: the receiving bin 21 facilitates the collection of qualified plastic granules, making subsequent processing and storage easier and the entire production process more convenient and orderly.
[0036] As a technical optimization of this utility model, the surfaces of the feed pipe 4, the guide pipe 10 and the guide plate 9 are all covered with a polytetrafluoroethylene wear-resistant layer 22.
[0037] In this embodiment, the surface polytetrafluoroethylene wear-resistant layer 22 can reduce the wear of particles during the conveying and guiding process, extend the service life of the equipment, and reduce the equipment maintenance cost.
[0038] Working principle and usage process of this utility model:
[0039] Plastic granules are fed into the crushing chamber 5 from the conical feeding cylinder 6. The granules are squeezed and ground by the first set of crushing rollers 7 and the second set of crushing rollers 8 in sequence, completing the initial crushing. After initial crushing, the granules are guided into the feeding pipe 4 by the guide plate 9, and then into the screening cylinder 2. The screening cylinder 2 rotates, and the spiral lifting ribs 19 drive the granules to move. Qualified granules fall through the screen into the bottom of the screening box 1 and enter the receiving bin 21 through the main discharge port 3. Larger granules that do not pass through the screen continue to move in the screening cylinder 2 and enter the secondary crushing chamber 11 through the guide pipe 10. They are crushed again by the third set of crushing rollers 12. The crushed qualified granules enter the receiving bin 21 through the auxiliary discharge port 13. During the screening process, the ultrasonic vibrator 20 works continuously to generate ultrasonic vibration, which prevents the screening cylinder 2 from clogging and ensures that the screening work is carried out smoothly.
[0040] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A crusher for plastic granules with screening function, characterized in that, The system includes a horizontally arranged screening box (1) and a screening cylinder (2). The bottom of the screening box (1) is inclined, and a main discharge port (3) is provided at the lower end. The screening cylinder (2) is horizontally and rotatably arranged inside the screening box (1). A feed pipe (4) is inclined upward on one side of the screening box (1), and the lower end of the feed pipe (4) is connected to one end of the screening cylinder (2). The upper end of the feed pipe (4) is connected to a crushing chamber (5), and a conical feeding cylinder (6) is fixed at the top of the crushing chamber (5). The lower end of the conical feeding cylinder (6) extends into the crushing chamber (5). The crushing chamber (5) is arranged from top to bottom according to... The first set of crushing rollers (7) and the second set of crushing rollers (8) are arranged to rotate relative to each other. A guide plate (9) is provided above the second set of crushing rollers (8) and inclined upward, and is fixed to the inner wall of the crushing chamber (5). A guide pipe (10) is provided on the other side of the screening box (1) and inclined downward, communicating with the screening screen cylinder (2). The guide pipe (10) is adjacent to the main discharge port (3). A secondary crushing chamber (11) is provided at the lower end of the guide pipe (10). Two third sets of crushing rollers (12) are arranged in the secondary crushing chamber (11) and the lower end of the secondary crushing chamber (11) is provided with a secondary discharge port (13).
2. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: The outer circumferential wall of the screening cylinder (2) is provided with a meshing toothed sleeve (14), and a drive wheel (15) is connected to the meshing toothed sleeve (14). The screening box (1) is provided with a drive motor (16), and the output shaft of the drive motor (16) is coaxially fixed to the drive wheel (15).
3. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: The screening box (1) has annular sleeves (17) on both sides inside, and the outer ends of the screening cylinder (2) are fixed to the annular sleeves (17) by bearings (18).
4. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: The inner wall of the screening cylinder (2) is provided with spirally arranged lifting ribs (19).
5. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: The top of the screening box (1) is equipped with an ultrasonic vibrator (20).
6. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: A receiving bin (21) is provided below the main discharge port (3) and the auxiliary discharge port (13).
7. A pulverizer for plastic granules with screening function according to claim 1, characterized in that: The surfaces of the feed pipe (4), the guide pipe (10) and the guide plate (9) are all covered with a polytetrafluoroethylene wear-resistant layer (22).