Granulating device for engineering plastic production
By introducing a cooling mechanism into the pelletizing device for engineering plastics production, the problems of deformation and frictional heat of plastic materials at high temperatures are solved, achieving efficient cooling and a stable pelletizing process, thus improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU MEIAO NEW MATERIAL CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
Existing engineering plastics pelletizing equipment lacks cooling devices, causing plastic materials to deform at high temperatures and frictional heat to affect pelletizing quality.
A pelletizing device with a cooling mechanism was designed, including a cooling air instrument, a transmission pipe and a protective filter. The cooling air instrument generates cold air, which is transmitted through the transmission pipe and uniformly cooled inside the pelletizer to prevent the plastic strips from deforming and sticking together.
It improves cooling efficiency, ensures rapid curing of plastic strips, avoids deformation and adhesion, guarantees the integrity and consistency of pellets, and improves production efficiency.
Smart Images

Figure CN224130206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of engineering plastics production, specifically to a pelletizing device for engineering plastics production. Background Technology
[0002] Engineering plastics are polymer materials with special properties and a wide range of applications. They have excellent mechanical properties, high strength, and high rigidity, as well as high heat resistance and chemical corrosion resistance, enabling them to be used stably for a long time in harsh environments. In addition, engineering plastics also have good electrical insulation and flame retardant properties, ensuring the safety and reliability of products. Pelletizing equipment is required during the production of engineering plastics.
[0003] Common pelletizing equipment for engineering plastics production typically lacks cooling devices during use. This can cause plastic materials to deform at high temperatures, resulting in unstable pellet sizes. Furthermore, frictional heat is generated between the plastic material and the cutter during pelletizing, especially at high speeds. This can negatively impact subsequent processing and the final product quality, causing adverse effects on users. Therefore, we propose a pelletizing device for engineering plastics production. Utility Model Content
[0004] Technical problem to be solved: In view of the shortcomings of the prior art, this utility model provides a pelletizing device for the production of engineering plastics, which has the advantages of improving cooling efficiency and improving product quality, and can effectively solve the problems in the background art.
[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pelletizing device for engineering plastics production includes a pelletizer control frame. A feeding frame is fixedly connected to one side of the upper end of the pelletizer control frame, and a cooling mechanism is positioned and installed on the other side of the upper end of the pelletizer control frame. A discharge hopper is fixedly connected to the rear end of the pelletizer control frame. Movable casters are movably installed at the four corners of the lower end of the pelletizer control frame. A switchable door is movably connected to one side of the pelletizer control frame. The cooling mechanism includes a through positioning hole, a cooling air instrument, a positioning frame, a first transmission pipe, a U-shaped positioning frame, a positioning plate, an inner anti-slip flexible pad, a second transmission pipe, an air outlet positioning hopper, and a protective filter screen.
[0006] Preferably, the lower end of the feeding rack is fixedly connected to the upper end of the pelletizer control main frame, one end of the discharge hopper is fixedly connected to the rear end of the pelletizer control main frame, the upper ends of the movable casters are all rotated and moved by bearings at the four corners of the lower end of the pelletizer control main frame, and the switchable door is opened and closed by a hinge on one side of the pelletizer control main frame.
[0007] Preferably, the through positioning hole is opened at the upper end of the pelletizer control main frame, the positioning frame is located on one side of the upper end of the pelletizer control main frame, the cooling air instrument is located at the upper end of the positioning frame, the first transmission pipe is located at the front end of the cooling air instrument, and the positioning plate is located at the lower end of the U-shaped positioning frame.
[0008] Preferably, the inner anti-slip flexible pad and the second transmission pipe are both located on the inner wall of the U-shaped positioning frame, the air outlet positioning hopper is evenly arranged at the lower end of the outer wall of the second transmission pipe, and the protective filter screen is located at the lower end of the inner wall of the air outlet positioning hopper.
[0009] Preferably, the lower end of the cooling air instrument is fixedly connected to the upper end of the positioning frame, the cooling air instrument is positioned at the upper end of the pelletizer control main frame through the positioning frame, one end of the first transmission pipe passes through the inner side of the cooling air instrument and is fixed, the lower end of the U-shaped positioning frame is fixedly connected to the upper end of the positioning plate, the U-shaped positioning frame is positioned on both sides of the upper end of the pelletizer control main frame through the positioning plate, and one side of the inner anti-slip flexible pad is attached to the inner wall of the U-shaped positioning frame with strong adhesive for positioning.
[0010] Preferably, the outer wall of the second transmission pipe engages with the inner wall of the U-shaped positioning frame for positioning, the upper end of the air outlet positioning hopper penetrates the inner wall of the lower end of the second transmission pipe and is fixed, one end of the second transmission pipe penetrates the inner wall of the first transmission pipe and is positioned by threads, the protective filter is embedded in the inner wall of the air outlet positioning hopper for positioning, and the lower end of the air outlet positioning hopper is fixedly connected to the upper end of the through positioning hole.
[0011] Beneficial Effects: Compared with the prior art, this utility model provides a pelletizing device for engineering plastics production, which has the following beneficial effects: This pelletizing device for engineering plastics production, through its cooling mechanism, can rapidly reduce the temperature of the extruded plastic strips, causing them to solidify quickly. This helps to improve production efficiency because the cooling time is shortened, allowing for faster pelletizing. Effective cooling prevents the plastic strips from deforming or sticking together due to excessive temperature during pelletizing. The cooled plastic strips have moderate hardness and are not easily broken during pelletizing, thus ensuring the integrity and consistency of the pellets. Cooling air can be generated by a cooling air device and transported from the first transmission pipe to the second. Inside the transmission pipe, cold air is evenly blown into the interior of the pelletizer control frame using the outlet positioning bucket. The pelletizing section inside the pelletizer control frame can be cooled. The outer wall of the outlet positioning bucket penetrates the interior of the positioning hole, and one end is positioned with the lower end of the second transmission pipe by threads. The outer wall of the protective filter screen is also positioned with threads between it and the lower inner wall of the outlet positioning bucket. The second transmission pipe is engaged with the inner wall of the U-shaped positioning frame. The friction is increased by the inner anti-slip flexible pad, which can play an anti-slip role and facilitate positioning. The U-shaped positioning frame is positioned at the upper end of the pelletizer control frame using positioning plates and bolts, and the cooling air instrument is also positioned at the upper end of the pelletizer control frame through the positioning frame. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a pelletizing device for the production of engineering plastics according to this utility model.
[0013] Figure 2 This is a schematic diagram of the structure of the pelletizer control frame, feeding frame, discharge hopper, through positioning hole, cooling air instrument, positioning frame and No. 1 transmission pipe of a pelletizing device for engineering plastics production according to this utility model.
[0014] Figure 3 This is a schematic diagram of the structure of a U-shaped positioning frame, positioning plate, second transmission pipe and air outlet positioning hopper of a pelletizing device for engineering plastics production according to this utility model.
[0015] Figure 4 This is a partial exploded view of the cooling mechanism in a pelletizing device for engineering plastics production according to this utility model.
[0016] In the diagram: 1. Pelletizer control frame; 2. Feeding frame; 3. Cooling mechanism; 4. Discharge hopper; 5. Movable casters; 6. Opening and closing door; 301. Through positioning hole; 302. Cooling air instrument; 303. Positioning frame; 304. No. 1 transmission pipe; 305. U-shaped positioning frame; 306. Positioning plate; 307. Inner anti-slip flexible pad; 308. No. 2 transmission pipe; 309. Air outlet positioning hopper; 310. Protective filter screen. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] like Figure 1-4 As shown, a pelletizing device for engineering plastics production includes a pelletizer control frame 1. A feed rack 2 is fixedly connected to one side of the upper end of the pelletizer control frame 1, and a cooling mechanism 3 is positioned and installed on the other side of the upper end of the pelletizer control frame 1. A discharge hopper 4 is fixedly connected to the rear end of the pelletizer control frame 1. Movable casters 5 are movably installed at the four corners of the lower end of the pelletizer control frame 1. A switchable door 6 is movably connected to one side of the pelletizer control frame 1. The cooling mechanism 3 includes a through positioning hole 301, a cooling air instrument 302, a positioning frame 303, a first transmission pipe 304, a U-shaped positioning frame 305, a positioning plate 306, an inner anti-slip flexible pad 307, a second transmission pipe 308, an air outlet positioning hopper 309, and a protective filter screen 310. Through the cooling mechanism 3, the temperature of the extruded plastic strip can be rapidly reduced, allowing it to solidify quickly, which helps to improve production efficiency.
[0019] Furthermore, the lower end of the feed rack 2 is fixedly connected to the upper end of the pelletizer control main frame 1, one end of the discharge hopper 4 is fixedly connected to the rear end of the pelletizer control main frame 1, the upper ends of the movable casters 5 are all rotated and moved by bearings at the four corners of the lower end of the pelletizer control main frame 1, and the switchable door 6 is opened and closed by a hinge on one side of the pelletizer control main frame 1 for easy movement.
[0020] Furthermore, the through positioning hole 301 is opened at the upper end of the pelletizer control main frame 1, the positioning frame 303 is located on one side of the upper end of the pelletizer control main frame 1, the cooling air instrument 302 is located at the upper end of the positioning frame 303, the first transmission pipe 304 is located at the front end of the cooling air instrument 302, and the positioning plate 306 is located at the lower end of the U-shaped positioning frame 305 for easy positioning.
[0021] Furthermore, the inner anti-slip flexible pad 307 and the second transmission pipe 308 are both located on the inner wall of the U-shaped positioning frame 305, the air outlet positioning bucket 309 is evenly arranged at the lower end of the outer wall of the second transmission pipe 308, and the protective filter 310 is located at the lower end of the inner wall of the air outlet positioning bucket 309, which plays a protective role.
[0022] Furthermore, the lower end of the cooling air instrument 302 is fixedly connected to the upper end of the positioning frame 303. The cooling air instrument 302 is positioned at the upper end of the pelletizer control main frame 1 through the positioning frame 303. One end of the first transmission pipe 304 passes through the inner side of the cooling air instrument 302 and is fixed. The lower end of the U-shaped positioning frame 305 is fixedly connected to the upper end of the positioning plate 306. The U-shaped positioning frame 305 is positioned on both sides of the upper end of the pelletizer control main frame 1 through the positioning plate 306. One side of the inner anti-slip flexible pad 307 is attached to the inner wall of the U-shaped positioning frame 305 with strong adhesive to enhance its firmness.
[0023] Furthermore, the outer wall of the second transmission pipe 308 engages with the inner wall of the U-shaped positioning frame 305 for positioning. The upper end of the air outlet positioning hopper 309 penetrates the inner wall of the lower end of the second transmission pipe 308 and is fixed. One end of the second transmission pipe 308 penetrates the inner wall of the first transmission pipe 304 and is positioned by threads. The protective filter screen 310 is embedded in the inner wall of the air outlet positioning hopper 309 and is positioned. The lower end of the air outlet positioning hopper 309 is fixedly connected to the upper end of the through positioning hole 301 for easy fixation.
[0024] Working Principle: This pelletizing device for engineering plastics production includes a pelletizer control frame 1, a feeding rack 2, a cooling mechanism 3, a discharge hopper 4, casters 5, and a sliding door 6. The pelletizer control frame 1 controls the feeding, cutting, and discharging operations. After the plastic raw material enters the pelletizer control frame 1 from the feeding rack 2, it is pelletized and then discharged through the discharge hopper 4. The casters 5 control the movement of the pelletizer control frame 1. The sliding door 6 can be hinged to one side of the pelletizer control frame 1, allowing operation or maintenance of the interior of the pelletizer control frame 1 after opening the sliding door 6. The cooling mechanism 3 can quickly reduce the temperature of the extruded plastic strip, causing it to solidify rapidly. This helps improve production efficiency because the cooling time is shortened, allowing for faster pelletizing. Effective cooling prevents the plastic strip from deforming or sticking due to excessive temperature during pelletizing. The cooled plastic strip has moderate hardness and is not easily broken during pelletizing, thus ensuring the integrity and consistency of the pellets. Cooling air is generated by the cooling air device 302 and transmitted from the first transmission pipe 304 to the second transmission pipe 308. The air outlet positioning hopper 309 evenly blows cold air into the interior of the pelletizer control frame 1, cooling the pelletizing part inside the pelletizer control frame 1. The outer wall of the air outlet positioning hopper 309 penetrates the interior of the positioning hole 301 and one end is connected to the lower end of the second transmission pipe 308. Positioning is achieved through threads. The outer wall of the protective filter 310 and the lower inner wall of the air outlet positioning hopper 309 are also positioned through threads. The second transmission pipe 308 is engaged with the inner wall of the U-shaped positioning frame 305. The friction is increased by the inner anti-slip flexible pad 307, which can play an anti-slip role and facilitate positioning. The U-shaped positioning frame 305 is positioned at the upper end of the pelletizer control main frame 1 by the positioning plate 306 and bolts. The refrigeration air instrument 302 is also positioned at the upper end of the pelletizer control main frame 1 by the positioning frame 303.
[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0026] 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 dicing device for engineering plastic production, comprising a dicer control main frame (1), characterized in that: A feeding rack (2) is fixedly connected to one side of the upper end of the pelletizer control main frame (1), and a cooling mechanism (3) is positioned and installed on the other side of the upper end of the pelletizer control main frame (1). A discharge hopper (4) is fixedly connected to the rear end of the pelletizer control main frame (1). Movable casters (5) are movably installed at the four corners of the lower end of the pelletizer control main frame (1). A switchable door (6) is movably connected to one side of the pelletizer control main frame (1). The cooling mechanism (3) includes a through positioning hole (301), a cooling air instrument (302), a positioning frame (303), a first transmission pipe (304), a U-shaped positioning frame (305), a positioning plate (306), an inner anti-slip flexible pad (307), a second transmission pipe (308), an air outlet positioning hopper (309), and a protective filter screen (310).
2. The dicing device for engineering plastic production according to claim 1, characterized in that: The lower end of the feed rack (2) is fixedly connected to the upper end of the pelletizer control main frame (1), one end of the discharge hopper (4) is fixedly connected to the rear end of the pelletizer control main frame (1), the upper ends of the movable casters (5) are all rotated and moved by bearings at the four corners of the lower end of the pelletizer control main frame (1), and the switchable door (6) is opened and closed by a hinge on one side of the pelletizer control main frame (1).
3. The dicing device for engineering plastic production according to claim 2, characterized in that: The through positioning hole (301) is opened at the upper end of the pelletizer control main frame (1), the positioning frame (303) is located on one side of the upper end of the pelletizer control main frame (1), the cooling air instrument (302) is located at the upper end of the positioning frame (303), the first transmission pipe (304) is located at the front end of the cooling air instrument (302), and the positioning plate (306) is located at the lower end of the U-shaped positioning frame (305).
4. The dicing device for engineering plastic production according to claim 3, characterized in that: The inner anti-slip flexible pad (307) and the second transmission pipe (308) are both located on the inner wall of the U-shaped positioning frame (305). The air outlet positioning bucket (309) is evenly arranged at the lower end of the outer wall of the second transmission pipe (308). The protective filter (310) is located at the lower end of the inner wall of the air outlet positioning bucket (309).
5. The dicing apparatus for producing engineering plastics according to claim 4, wherein: The lower end of the cooling air instrument (302) is fixedly connected to the upper end of the positioning frame (303). The cooling air instrument (302) is positioned at the upper end of the pelletizer control main frame (1) through the positioning frame (303). One end of the first transmission pipe (304) passes through the inner side of the cooling air instrument (302) and is fixed. The lower end of the U-shaped positioning frame (305) is fixedly connected to the upper end of the positioning plate (306). The U-shaped positioning frame (305) is positioned on both sides of the upper end of the pelletizer control main frame (1) through the positioning plate (306). One side of the inner anti-slip flexible pad (307) is attached to the inner wall of the U-shaped positioning frame (305) with strong adhesive for positioning.
6. The dicing apparatus for producing engineering plastics according to claim 5, wherein: The outer wall of the second transmission pipe (308) is engaged and positioned with the inner wall of the U-shaped positioning frame (305). The upper end of the air outlet positioning bucket (309) penetrates the inner wall of the lower end of the second transmission pipe (308) and is fixed. One end of the second transmission pipe (308) penetrates the inner wall of the first transmission pipe (304) and is positioned by threads. The protective filter (310) is embedded in the inner wall of the air outlet positioning bucket (309) and is positioned. The lower end of the air outlet positioning bucket (309) is fixedly connected to the upper end of the through positioning hole (301).