Plastic particle cutting machine
By using a combination of cutting blades with a blade-shaped design and scraper/baffle plate in a plastic particle cutting machine, the problem of waste adhering to the cutting blades is solved, achieving efficient cutting and uniform plastic particle production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUYAO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
During the cutting process, plastic waste tends to stick to the surface of the cutting blade in existing plastic particle cutting machines, affecting the sharpness of the cutting blade and the quality of the plastic particles.
The cutting blade is designed with a sharp edge for shearing and is equipped with a scraper and a pusher. The scraper removes sticky waste, and the pusher uses water flow to wash away residual waste. Combined with high-speed axial motion, the cutting is achieved.
It effectively removes plastic waste from the cutting blade, maintains blade sharpness, ensures cutting efficiency and uniformity of plastic particles, and prevents waste from cooling and solidifying, thus affecting the cutting device.
Smart Images

Figure CN224240070U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic cutting technology, specifically relating to a plastic particle cutting machine. Background Technology
[0002] Plastic pellets are a common name for plastic granules. They are raw materials for storing, transporting, and processing plastics in a semi-finished form. Plastic pellets need to be cut during production. Molten plastic strips are cut by a cutting device.
[0003] Plastic particle cutting is divided into air-cooled, water-ring, and underwater types. Underwater cutting is done in a closed environment with warm water, resulting in high particle uniformity and good environmental performance. However, when cutting molten plastic strips, some plastic waste adheres to the surface of the cutting blade. When the plastic waste cools and solidifies, it will stick together, affecting the sharpness of the cutting blade and the quality of the cut plastic particles.
[0004] Therefore, a plastic particle cutting machine is proposed. Summary of the Invention
[0005] This invention provides a plastic particle cutting machine, the purpose of which is to solve the problems mentioned above.
[0006] This utility model provides a plastic particle cutting machine, including two supports; waterproof servo motors respectively mounted on one outer wall of the two supports; a turntable fixed to the output end of the waterproof servo motors; five cutting blades axially and equally spaced on the outer wall of the turntable; an outer fixing ring mounted on one end of the five cutting blades; a support column located at the center of the top of the supports; a plastic pull strip guide sleeve located at the top of the support column; a pusher plate mounted on the outer wall of the turntable adjacent to the cutting blades; a support plate mounted on the outer wall of the supports; and a scraper plate located on one side of the top of the support plate.
[0007] Furthermore, a cutting edge is provided on one side of the outer wall of the cutting blade, and the cutting edges of two adjacent cutting blades shear each other in the horizontal direction;
[0008] By adopting the above technical solution, the cutting ability of the cutting blade is guaranteed by the cutting edge, and the cutting edge on the cutting blade is used for shearing. The cutting force can be used to cut plastic strips, and the cutting blade with high-speed axial movement can be used to granulate plastic strips.
[0009] Furthermore, the scraper plate is attached to the outer wall of the cutting blade, and a baffle is provided on one side of the scraper plate;
[0010] By adopting the above technical solution, the plastic waste adhering to the cutting blade can be scraped and cleaned by the scraper, and the baffle can be used to block it and prevent the plastic waste from flowing with the water.
[0011] Furthermore, the scraper blade forms a 30-degree angle with the horizontal, and one side of the scraper blade is attached to one side of the pusher plate.
[0012] By adopting the above technical solution, the scraped plastic waste can be guided.
[0013] Furthermore, a total of twelve pusher plates are provided, and the twelve pusher plates are axially spaced at equal intervals on one side of the outer wall of the turntable;
[0014] By adopting the above technical solution, the axial movement of the pusher plate can be used to drive the water flow, which in turn washes away the plastic waste that is stuck to the scraper plate, making it easier for the plastic waste to be discharged.
[0015] Furthermore, the bracket has an L-shaped cross-section, and mounting holes are provided at the bottom of the bracket;
[0016] By adopting the above technical solution, the bracket can be installed and fixed more easily, while providing better support for the waterproof servo motor.
[0017] The beneficial effects of this utility model are as follows:
[0018] This invention utilizes two cutting blades moving axially at high speed in opposite directions to generate shearing force, cutting plastic strips in warm water into granules. The precise cut intervals ensure thorough cutting while maintaining efficiency. The combined action of the scraper and pusher plates not only removes plastic waste adhering to the cutting blades, preventing it from solidifying and affecting the blades' sharpness, thus ensuring normal operation and uniformity of the plastic particles, but also uses water flow to flush away plastic waste from the scraper, keeping it away from the cutting device.
[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of the turntable structure according to an embodiment of the present utility model;
[0023] Figure 3 This is a schematic diagram of the cooperation between the pallet and the scraper in an embodiment of the present utility model;
[0024] Figure 4 This is a front view of an embodiment of the present utility model;
[0025] Figure 5 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A in the diagram;
[0026] Reference numerals in the attached diagram: 1. Bracket; 2. Waterproof servo motor; 3. Turntable; 4. Cutting blade; 5. Outer fixing ring; 6. Support column; 7. Plastic pull strip guide sleeve; 8. Push plate; 9. Support plate; 10. Scraper. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] Reference Figure 1-5 This utility model embodiment proposes a plastic particle cutting machine, including two symmetrically arranged supports 1. The cross-section of the supports 1 is L-shaped, and the bottom of the supports 1 is provided with mounting holes to facilitate the installation and fixation of the supports 1 while providing better support for the waterproof servo motors 2. The waterproof servo motors 2 are fixedly connected to one side of the outer wall of the two supports 1 by bolts. The two waterproof servo motors 2 are fixedly connected to the turntable 3 through the output end on one side. Five cutting blades 4 are axially and equally spaced on the outer wall of the turntable 3. The cutting blades 4 are provided with a cutting surface on one side of the outer wall. The cutting surfaces of two adjacent cutting blades 4 in the horizontal direction shear each other. The cutting surface ensures the cutting ability of the cutting blades 4. By shearing the cutting surfaces of the cutting blades 4, the cutting force can be used to cut plastic strips. The high-speed axially moving cutting blades 4 can be used to cut plastic strips into granules. An outer fixing ring 5 is provided on one side of the five cutting blades 4.
[0029] A support column 6 is provided at the top center of the bracket 1, and a plastic pull strip guide sleeve 7 is provided at the top of the support column 6. The plastic pull strip guide sleeve 7 can guide the plastic pull strip after thermoplastic extrusion.
[0030] A pusher plate 8 is provided on the outer wall of the turntable 3 adjacent to the cutting blade 4. There are twelve pusher plates 8 in total, and the twelve pusher plates 8 are axially evenly spaced on the outer wall of the turntable 3. By moving the pusher plates 8 axially, the pusher plates 8 can push the water flow, and the water flow can wash away the plastic waste residue stuck to the scraper plate 10, so as to facilitate the discharge of plastic waste. A support plate 9 is provided on the outer wall of the support plate 1. A scraper plate 10 is provided on the top side of the support plate 9. The scraper plate 10 is attached to the outer wall of the cutting blade 4, and a baffle is provided on one side of the scraper plate 10. The scraper plate 10 can scrape and clean the plastic waste stuck to the cutting blade 4, and the baffle can block it to prevent the plastic waste from flowing with the water flow. The scraper plate 10 is at a 30-degree angle to the horizontal, and one side of the scraper plate 10 is attached to one side of the pusher plate 8, which can guide the scraped plastic waste.
[0031] The specific implementation method is as follows: When cutting plastic particles, the cutting device is immersed in warm water. The hot-melt extruded plastic strip is pulled through the plastic strip guide sleeve 7. The waterproof servo motor 2 is controlled to drive the turntable 3 to rotate at high speed through its output end on one side. The cutting blades 4 on the turntable 3 move axially at high speed. When the two cutting blades 4 cut each other, the cutting point of the two cutting blades 4 is located on one side of the plastic strip guide sleeve 7. The shearing force is used to cut the plastic strip and form plastic particles.
[0032] After the cutting blade 4 completes one cut, because the plastic strip is in a molten state, when the cutting blade 4 cuts, the cut part of the plastic strip is easy to be drawn and adhere to the cutting blade 4. As the cutting blade 4 continues to rotate, the cutting blade 4 comes into contact with the scraper plate 10. The scraper plate 10 scrapes off the plastic waste attached to the cutting blade 4. As the turntable 3 rotates at high speed, the pusher plate 8 on the turntable 3 moves axially. The pusher plate 8 pushes the water flow and makes the water flow wash away the plastic waste on the scraper plate 10, so that the plastic waste is away from the cutting device.
[0033] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic particle cutting machine, characterized in that: Includes two supports (1); Waterproof servo motors (2) are respectively installed on the outer wall of one side of the two brackets (1); A turntable (3) fixed to the output end of the waterproof servo motor (2); Five cutting blades (4) are axially spaced at equal intervals on the outer side wall of the turntable (3); An outer fixing ring (5) is provided on one side of each of the five cutting blades (4); A support column (6) is located at the center of the top of the bracket (1); A plastic pull strip guide sleeve (7) is provided at the top of the support column (6); A pusher plate (8) is provided on the outer wall of the turntable (3) adjacent to the cutting blade (4); Support plate (9) provided on the outer side wall of the bracket (1); A scraper (10) is provided on one side of the top of the support plate (9).
2. A plastic particle cutting machine according to claim 1, characterized in that: The cutting blade (4) has a cutting edge on one side of its outer wall, and the cutting edges of two adjacent cutting blades (4) shear each other in the horizontal direction.
3. A plastic particle cutting machine according to claim 1, characterized in that: The scraper (10) is attached to the outer wall of the cutting blade (4), and a baffle is provided on one side of the scraper (10).
4. A plastic particle cutting machine according to claim 1, characterized in that: The scraper (10) forms a 30-degree angle with the horizontal, and one side of the scraper (10) is attached to one side of the pusher plate (8).
5. A plastic particle cutting machine according to claim 1, characterized in that: There are twelve pusher plates (8) in total, and the twelve pusher plates (8) are axially spaced at equal intervals on one side of the outer wall of the turntable (3).
6. A plastic particle cutting machine according to claim 1, characterized in that: The bracket (1) has an L-shaped cross-section and a mounting hole is provided at the bottom of the bracket (1).