Plastic particle crushing device
By using a screw system driven by a servo motor and a DC motor in conjunction with a crushing roller, the problem of inconsistent particle size in existing devices has been solved, achieving uniform crushing and sieving of plastic particles and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUAHUIYI TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing plastic pellet crushing equipment cannot effectively screen out particles of inconsistent size after crushing, resulting in uneven product quality.
A servo motor drives the conveying screw to transport particles, and a sieve plate collects smaller particles. At the same time, a DC motor drives a double-grooved screw to adjust the height of the crushing hopper and the limit extension rod to limit the movement, which works in conjunction with the crushing roller to crush the particles.
It achieves uniform crushing and sieving of plastic granules, ensuring consistency in particle size and facilitating subsequent processing and use.
Smart Images

Figure CN224197105U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic granule crushing technology, specifically a plastic granule crushing device. Background Technology
[0002] Cable plastic granules are a key raw material in the manufacture of wires and cables. They are mainly used in the production of insulation layers and sheaths. They are made from polyvinyl chloride resin as a base, with the addition of plasticizers, stabilizers and other additives. They have the characteristics of low cost, good flame retardancy and flexible processing.
[0003] In the existing technology, CN222309441U describes a plastic granule crushing device, which includes a crushing chamber. Inside the crushing chamber, two sets of crushing rollers are rotatably mounted, each with one end penetrating the chamber and a drive gear for engagement. One end of each crushing roller is fixedly connected to the output end of a drive motor. A four-sided pyramidal collection chamber is fixedly installed at the bottom of the crushing chamber, with a discharge port at its bottom. The device also includes a cooling assembly and a dust suppression assembly. This invention, through the cooperation of the above structures, facilitates pre-cooling of plastic granules during processing, thus aiding subsequent processing. Furthermore, it can treat the dust generated during plastic granule crushing, making it more practical.
[0004] Existing plastic granule crushing devices have limitations, resulting in granules of inconsistent size after crushing. However, common crushing devices cannot effectively screen plastic granules. Therefore, a new plastic granule crushing device is proposed to address these issues. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a plastic particle crushing device.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A plastic granule crushing device of this utility model includes a screening body; a storage drawer is slidably connected to the inner wall of the screening body; a material conveying body is fixedly connected to the top of the screening body; a screening plate is fixedly connected to the bottom of the material conveying body; a servo motor is installed on the side of the material conveying body; a material conveying screw is fixedly connected to the output end of the servo motor; the material conveying screw is rotatably connected to the inner wall of the material conveying body; a crushing hopper is connected to the top of the material conveying body; a crushing motor is installed on the side of the crushing hopper; a limit telescopic rod is fixedly connected to the bottom of the screening body; and a device base plate is fixedly connected to the bottom of the limit telescopic rod.
[0007] Preferably, a sliding rail is fixedly connected to the top of the device base plate; limit rods are fixedly connected to both sides of the sliding rail.
[0008] Preferably, a DC motor is mounted on the side of the sliding track; the output end of the DC motor is fixedly connected to a double-threaded screw.
[0009] Preferably, the outer wall of the double-threaded screw is threaded with a sliding block; and a rotation auxiliary block is fixedly connected to the top of the sliding block.
[0010] Preferably, the outer wall of the rotating auxiliary block is rotatably connected to an adjusting support rod; the adjusting support rod is rotatably connected to the bottom of the screening body.
[0011] Preferably, a connecting rod is fixedly connected to the output end of the crushing motor; a crushing roller is fixedly connected to the outer wall of the connecting rod.
[0012] Preferably, the outer wall of the connecting rod is fixedly connected to a meshing gear; the meshing gears mesh with each other.
[0013] The beneficial effects of this utility model are:
[0014] This utility model provides a plastic granule crushing device. By setting a servo motor to drive the conveying screw to rotate, it can transport the crushed plastic granules. At the same time, the setting of the sieve plate can allow the smaller plastic granules to enter the collection drawer inside the sieve body for collection.
[0015] This utility model provides a plastic granule crushing device. After the double-grooved screw is driven by a DC motor to rotate, the sliding blocks move closer to each other, allowing the adjusting support rod to allow the screening body to rise or fall freely after rotation. At the same time, the limiting telescopic rod can play a role in limiting the sliding. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 This is a perspective view of the entire utility model;
[0019] Figure 2 This is a three-dimensional view of the storage drawer in this utility model;
[0020] Figure 3 This is a perspective view of the crushing hopper in this utility model;
[0021] Figure 4 This is an enlarged view of point A in this utility model.
[0022] Legend:
[0023] 1. Screening body; 2. Material conveying body; 3. Crushing hopper; 4. Crushing motor; 5. Servo motor; 6. Storage drawer; 7. Limiting telescopic rod; 8. Device base plate; 9. Crushing roller; 10. Material conveying screw; 11. Screening plate; 12. DC motor; 13. Rotating auxiliary block; 14. Meshing gear; 15. Connecting rod; 16. Sliding track; 17. Limiting rod; 18. Double-threaded screw; 19. Sliding block; 20. Adjusting support rod. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] Please see Figures 1-4 This utility model provides a plastic granule crushing device, including a screening body 1; a storage drawer 6 is slidably connected to the inner wall of the screening body 1; a conveying body 2 is fixedly connected to the top of the screening body 1; a screening plate 11 is fixedly connected to the bottom of the conveying body 2; a servo motor 5 is installed on the side of the conveying body 2; a conveying screw 10 is fixedly connected to the output end of the servo motor 5; the conveying screw 10 is rotatably connected to the inner wall of the conveying body 2; a crushing hopper 3 is connected to the top of the conveying body 2; a crushing motor 4 is installed on the side of the crushing hopper 3; a limiting telescopic rod 7 is fixedly connected to the bottom of the screening body 1; a device base plate 8 is fixedly connected to the bottom of the limiting telescopic rod 7; during operation, plastic granules poured into the crushing hopper 3 will enter the interior of the conveying body 2. Simultaneously, after the servo motor 5 is started, the conveying screw 10 will rotate, thus transporting the plastic granules. Smaller plastic granules can fall along the screening plate 11 into the storage drawer 6 inside the screening body 1 for collection.
[0027] Furthermore, such as Figure 2 and Figure 4As shown, a sliding rail 16 is fixedly connected to the top of the device base plate 8; limit rods 17 are fixedly connected to both sides of the sliding rail 16; a DC motor 12 is installed on the side of the sliding rail 16; a double-threaded screw 18 is fixedly connected to the output end of the DC motor 12; a sliding block 19 is threadedly connected to the outer wall of the double-threaded screw 18; a rotating auxiliary block 13 is fixedly connected to the top of the sliding block 19; an adjusting support rod 20 is rotatably connected to the outer wall of the rotating auxiliary block 13; the adjusting support rod 20 is rotatably connected to the bottom of the screening body 1; a connecting rod 15 is fixedly connected to the output end of the crushing motor 4; a crushing roller 9 is fixedly connected to the outer wall of the connecting rod 15; a meshing gear 14 is fixedly connected to the outer wall of the connecting rod 15; the meshing gears 14 mesh with each other. During operation, starting the crushing motor 4 will cause the crushing roller 9 to rotate using the meshing gear 14, crushing the plastic particles poured into the crushing hopper 3. At the same time, when it is necessary to adjust the height of the crushing hopper 3, the DC motor 12 can be started to rotate the double-threaded screw 18 with a mirrored thread along the middle part, driving the sliding blocks 19 to move closer to each other inside the limiting rod 17, thereby causing the adjusting support rod 20 to rotate and drive the screening body 1 to rise. Meanwhile, the limiting telescopic rod 7 can play the role of limiting the sliding.
[0028] Working principle: Plastic granules poured into the crushing hopper 3 will enter the conveying body 2. At the same time, after the servo motor 5 is started, the conveying screw 10 will rotate to transport the plastic granules. Meanwhile, smaller plastic granules can fall down the screening plate 11 into the collection drawer 6 inside the screening body 1 for collection. When the crushing motor 4 is started, the crushing roller 9 will rotate using the meshing gear 14 to crush the plastic granules poured into the crushing hopper 3. When it is necessary to adjust the height of the crushing hopper 3, the DC motor 12 can be started to rotate the double-threaded screw 18 with a mirrored thread in the middle, which will drive the sliding block 19 to move closer to each other inside the limiting rod 17, thereby causing the adjusting support rod 20 to rotate and drive the screening body 1 to rise. At the same time, the limiting telescopic rod 7 can play a role in limiting the sliding.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A plastic granule crushing device, comprising a screening body (1); characterized in that: The inner wall of the screening body (1) is slidably connected to a storage drawer (6); the top of the screening body (1) is fixedly connected to a material conveying body (2); the bottom of the material conveying body (2) is fixedly connected to a screening plate (11); a servo motor (5) is installed on the side of the material conveying body (2); a material conveying screw (10) is fixedly connected to the output end of the servo motor (5); the material conveying screw (10) is rotatably connected to the inner wall of the material conveying body (2); the top of the material conveying body (2) is connected to a crushing hopper (3); a crushing motor (4) is installed on the side of the crushing hopper (3); a limit telescopic rod (7) is fixedly connected to the bottom of the screening body (1); a device base plate (8) is fixedly connected to the bottom of the limit telescopic rod (7).
2. The plastic granule crushing device as described in claim 1, characterized in that: A sliding rail (16) is fixedly connected to the top of the device base plate (8); limit rods (17) are fixedly connected to both sides of the sliding rail (16).
3. The plastic granule crushing device as described in claim 2, characterized in that: A DC motor (12) is mounted on the side of the sliding track (16); a double-threaded screw (18) is fixedly connected to the output end of the DC motor (12).
4. The plastic granule crushing device as described in claim 3, characterized in that: The outer wall of the double-threaded screw (18) is threaded with a sliding block (19); the top of the sliding block (19) is fixedly connected with a rotation auxiliary block (13).
5. The plastic granule crushing device as described in claim 4, characterized in that: The outer wall of the rotating auxiliary block (13) is rotatably connected to an adjusting support rod (20); the adjusting support rod (20) is rotatably connected to the bottom of the screening body (1).
6. The plastic granule crushing device as described in claim 1, characterized in that: The output end of the crushing motor (4) is fixedly connected to a connecting rod (15); the outer wall of the connecting rod (15) is fixedly connected to a crushing roller (9).
7. The plastic granule crushing device as described in claim 6, characterized in that: The outer wall of the connecting rod (15) is fixedly connected to a meshing gear (14); the meshing gears (14) mesh with each other.