An engineered plastic pellet screw extrusion device
By improving the design of the discharge and feed components, the problem of time-consuming and labor-intensive replacement of the discharge screen in the existing equipment has been solved, realizing convenient installation of the discharge screen and smooth material feeding, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN GUOHENG PLASTIC TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-09
AI Technical Summary
Existing screw extrusion units for engineering plastic particles require the removal of a large number of bolts when replacing the discharge screen. This process is time-consuming and labor-intensive, with low disassembly and assembly efficiency. Furthermore, the material is prone to clogging and clumping, which affects production efficiency and product quality.
The discharge assembly design allows for convenient installation of the discharge screen through the sliding connection of the connecting ring and the locking block. Combined with the filter screen and blower in the feeding assembly to separate impurities, and the motor stirring blades to prevent material from clumping, it ensures smooth material feeding.
It enables rapid and stable installation of the discharge screen, reduces equipment blockage, improves production efficiency, and ensures product quality and stable equipment operation.
Smart Images

Figure CN224335013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering plastic particles, and in particular to a screw extrusion device for engineering plastic particles. Background Technology
[0002] With the rapid development of modern industries such as electronics, automobiles, and aerospace, the demand for engineering plastics is increasing, and the requirements for their performance and quality are also getting higher and higher. Traditional processing methods are difficult to meet the needs of engineering plastics under complex working conditions. In order to achieve efficient and stable melting, mixing and molding of engineering plastic particles, ensure the consistency and reliability of product quality, and improve production efficiency to adapt to large-scale industrial production, the screw extrusion device for engineering plastic particles has emerged.
[0003] In existing engineering plastic particle screw extrusion devices, the motor drives the screw to rotate through the reducer and coupling. After the material enters from the hopper, it is conveyed forward along the screw groove under the push of the screw. The shearing force generated by the rotation of the screw and the heating effect outside the barrel cause the material to be gradually compacted and melted. Additives and other materials are fully mixed with plastic particles in this process. The melted material is extruded through the die head mold under the continued push of the screw and formed into products with specific shapes and sizes through the discharge screen.
[0004] However, when the discharge screen of an existing engineering plastic particle screw extrusion device needs to be replaced, workers need to disassemble a large number of bolts, which is time-consuming, labor-intensive, and has low disassembly and assembly efficiency. Therefore, an engineering plastic particle screw extrusion device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an engineering plastic particle screw extrusion device, which aims to improve the problem in the prior art that when the discharge screen needs to be replaced, workers need to disassemble a large number of bolts, which is time-consuming, labor-intensive, and has low disassembly and assembly efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an engineering plastic particle screw extrusion device, comprising a support frame, a threaded extruder fixedly connected to the top of the support frame, a discharge assembly provided at the left end of the threaded extruder, a feeding assembly provided at the top of the threaded extruder, the discharge assembly comprising an installation cavity fixedly connected to the surface of the threaded extruder, a spring fixedly connected inside the installation cavity, a limit plate fixedly connected to one end of the spring, a connecting seat fixedly connected to the surface of the threaded extruder, at least one slot provided on the surface of the connecting seat, a sliding groove provided inside the connecting seat, a connecting ring abutting against the side wall of the installation cavity, at least one locking block fixedly connected to the right side wall of the connecting ring, and a discharge screen fixedly connected inside the connecting ring;
[0007] As a further description of the above technical solution:
[0008] The top of the threaded extruder is fixedly connected to a feed hopper, the upper part of the left side wall of the feed hopper is fixedly connected to a filter screen, the left side wall of the filter screen abuts against a collection box, the right side wall of the feed hopper is fixedly connected to a blower, the middle part of the left side wall of the feed hopper is fixedly connected to a motor, and the output end of the motor is fixedly connected to a stirring blade.
[0009] As a further description of the above technical solution:
[0010] The limiting plate is slidably connected to the surface of the threaded extruder, and the discharge screen abuts against the left end of the threaded extruder;
[0011] As a further description of the above technical solution:
[0012] The locking block abuts against the side wall of the limiting plate, and the locking groove and the sliding groove are interconnected.
[0013] As a further description of the above technical solution:
[0014] The card block is slidably connected inside the card slot; the card block is slidably connected inside the sliding groove.
[0015] As a further description of the above technical solution:
[0016] The connecting seat abuts against the side wall of the limiting plate;
[0017] As a further description of the above technical solution:
[0018] The collection box is slidably connected to the side wall of the feed hopper, and the output end of the blower faces the filter screen.
[0019] As a further description of the above technical solution:
[0020] The stirring blades are rotatably connected inside the feed hopper, and the feed hopper is connected to the threaded extruder.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, through the structural design of the discharge assembly, by aligning the connecting ring with the mounting cavity, the locking block smoothly enters the slot and squeezes the limiting plate to compress the spring. Then, rotating the connecting ring allows the locking block to slide into the slide groove for fixation. This enables convenient and quick installation of the discharge screen. This installation method is simple to operate, requires no complicated tools or cumbersome steps, effectively saves installation time, and improves production preparation efficiency. At the same time, the stable locking and fixing method ensures the positional accuracy and firmness of the discharge screen after installation, ensuring the stable operation of the discharge screen during extrusion. It solves the problem in the prior art that when the discharge screen needs to be replaced, workers need to disassemble a large number of bolts, which is time-consuming, labor-intensive, and has low disassembly and assembly efficiency.
[0023] 2. In this utility model, through the structural design of the feeding assembly, the filter screen, in conjunction with the blower, can effectively separate materials from impurities. The blower blows out airflow to blow away small impurities from the material, while the filter screen intercepts the material, preventing impurities from entering the device, reducing screw blockage, ensuring normal equipment operation and product quality. The motor drives the stirring blades to stir the material, preventing the material from clumping due to moisture, compression, etc., maintaining the material in a loose state, ensuring smooth feeding, improving the stability of the extrusion process, and enhancing the practicality of the engineering plastic particle screw extrusion device. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of an engineering plastic particle screw extrusion device proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the discharge assembly of an engineering plastic particle screw extrusion device proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the feeding assembly of an engineering plastic particle screw extrusion device proposed in this utility model.
[0027] Legend:
[0028] 1. Support frame; 2. Threaded extruder; 3. Discharge assembly; 4. Feed assembly; 31. Mounting cavity; 32. Spring; 33. Limiting plate; 34. Connecting seat; 35. Slot; 36. Slide groove; 37. Connecting ring; 38. Locking block; 39. Discharge screen; 41. Feed hopper; 42. Filter screen; 43. Collection box; 44. Blower; 45. Motor; 46. Agitator blade. Detailed Implementation
[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figures 1-3This utility model provides an embodiment of an engineering plastic particle screw extrusion device, including a support frame 1. A threaded extruder 2 is fixedly connected to the top of the support frame 1 to melt and extrude plastic particles. A discharge component 3 is provided at the left end of the threaded extruder 2. After melting and extrusion, the particles are discharged through the discharge component 3. A feeding component 4 is provided at the top of the threaded extruder 2 as a material processing inlet. The discharge component 3 includes a mounting cavity 31 fixedly connected to the surface of the threaded extruder 2. A spring 32 is fixedly connected inside the mounting cavity 31, providing installation space for the spring 32. One end of the spring 32 is fixedly connected to a limiting plate 33, which can drive the limiting plate 33 to move. A connecting seat 34 and a connecting ring 37 are fixedly connected to the surface of the threaded extruder 2. The surface of the connecting seat 34 has at least one slot 35, and the interior of the connecting seat 34 has a sliding groove 36 to provide moving space for the locking block 38. The side wall of the mounting cavity 31 abuts against the connecting ring 37, connecting the threaded extruder 2 and the discharge component 37. The material screen 39 and the connecting ring 37 are fixedly connected to the right side wall by at least one locking block 38. The position of the connecting ring 37 is fixed by fixing the position of the locking block 38. The discharge screen 39 is fixedly connected inside the connecting ring 37 to form the extruded material. The limiting plate 33 is slidably connected to the surface of the threaded extruder 2, so that the spring 32 can drive the limiting plate 33 to move on the surface of the threaded extruder 2. The discharge screen 39 abuts against the left end of the threaded extruder 2 to perform timely forming processing of the material. The locking block 38 abuts against... On the side wall of the limiting plate 33, the slot 35 and the slide 36 are interconnected. The locking block 38 enters the slide 36 through the slot 35. The limiting plate 33 limits the locking block 38. The locking block 38 is slidably connected inside the slot 35 and the slide 36, so that the locking block 38 can enter the slide 36 and be smoothly locked and fixed. The connecting seat 34 abuts against the side wall of the limiting plate 33 and limits the position of the limiting plate 33 to prevent the limiting plate 33 from popping out excessively.
[0031] Reference Figures 1-3The top of the threaded extruder 2 is fixedly connected to a feed hopper 41, through which material enters. A filter screen 42 is fixedly connected to the upper part of the left side wall of the feed hopper 41, separating the material from dust and impurities. A collection box 43 is abutted against the left side wall of the filter screen 42 to collect dust and impurities. A blower 44 is fixedly connected to the right side wall of the feed hopper 41, blowing the incoming material to separate it from impurities. A motor 45 is fixedly connected to the middle of the left side wall of the feed hopper 41, and an agitator 46 is fixedly connected to the output end of the motor 45. 5. The stirring blade 46 can be driven to rotate. The collection box 43 is slidably connected to the side wall of the feed hopper 41. The collection box 43 can be disassembled to uniformly treat the internal dust. The output end of the blower 44 faces the filter screen 42. When the blower 44 is working, it can blow dust and impurities through the filter screen 42. The stirring blade 46 is rotatably connected to the inside of the feed hopper 41. The feed hopper 41 is connected to the threaded extruder 2. The stirring blade 46 disperses the material inside the feed hopper 41 by rotating and enters the inside of the threaded extruder 2.
[0032] Working principle: Engineering plastic particles are added from the feed hopper 41. During this process, the blower 44 operates, blowing the material and causing dust and impurities inside the material to pass through the filter screen 42 into the collection box 43. The filter screen 42 then blocks the material, keeping it inside the feed hopper 41. Subsequently, the motor 45 drives the stirring blade 46 to rotate and stir, breaking up the material so that it enters the threaded extruder 2 evenly and smoothly. The threaded extruder 2 melts the material, and after molding, it is discharged through the discharge screen 39. When the discharge screen 39 needs to be replaced, pressing the connecting ring 37 drives the locking block 38 to squeeze the limiting plate 33, causing the limiting plate 33 to move inside the mounting cavity 31. Move the spring 32 to the right and squeeze it. Then rotate the connecting ring 37 to drive the locking block 38 to rotate inside the slide groove 36. When the locking block 38 rotates to the position of the slot 35, the locking block 38 can be pulled out to remove the discharge screen and replace the discharge screen 39. During installation, align the connecting ring 37 with the installation cavity 31 so that the locking block 38 enters the slot 35 and squeezes the limiting plate 33 to retract the spring 32. Then rotate the connecting ring 37 to make the locking block 38 slide into the slide groove 36. Then, due to the elasticity of the spring 32, the limiting plate 33 is reset. The mounting cavity 31 is fixed by the squeezing of the locking block 38 by the connecting seat 34 and the limiting plate 33, thus fixing the discharge screen 39.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An engineered plastic pellets screw extrusion device comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the top of the threaded extruder (2), the threaded extruder (2) is provided with a discharge assembly (3) at the left end, and the threaded extruder (2) is provided with a feed assembly (4) at the top. The discharge assembly (3) includes a mounting cavity (31) fixedly connected to the surface of the threaded extruder (2). A spring (32) is fixedly connected inside the mounting cavity (31). A limit plate (33) is fixedly connected to one end of the spring (32). A connecting seat (34) is fixedly connected to the surface of the threaded extruder (2). At least one slot (35) is opened on the surface of the connecting seat (34). A sliding groove (36) is opened inside the connecting seat (34). A connecting ring (37) abuts against the side wall of the mounting cavity (31). At least one locking block (38) is fixedly connected to the right side wall of the connecting ring (37). A discharge screen (39) is fixedly connected inside the connecting ring (37).
2. An engineered plastic pellet screw extrusion apparatus as defined in claim 1, wherein: The top of the threaded extruder (2) is fixedly connected to a feed hopper (41), a filter screen (42) is fixedly connected to the upper part of the left side wall of the feed hopper (41), a collection box (43) is abutted against the left side wall of the filter screen (42), a blower (44) is fixedly connected to the right side wall of the feed hopper (41), a motor (45) is fixedly connected to the middle part of the left side wall of the feed hopper (41), and a stirring blade (46) is fixedly connected to the output end of the motor (45).
3. An engineered plastic pellet screw extrusion apparatus as defined in claim 1, wherein: The limiting plate (33) is slidably connected to the surface of the threaded extruder (2), and the discharge screen (39) abuts against the left end of the threaded extruder (2).
4. The apparatus of claim 1, wherein: The card block (38) abuts against the side wall of the limiting plate (33), and the card slot (35) and the slide groove (36) are interconnected.
5. The apparatus of claim 1 wherein: The card block (38) is slidably connected inside the card slot (35), and the card block (38) is slidably connected inside the slide groove (36).
6. An engineered plastic pellet screw extrusion apparatus as defined in claim 1, wherein: The connecting seat (34) abuts against the side wall of the limiting plate (33).
7. An engineered plastic pellet screw extrusion apparatus as defined in claim 2, wherein: The collection box (43) is slidably connected to the side wall of the feed hopper (41), and the output end of the blower (44) faces the filter screen (42).
8. An engineered plastic pellet screw extrusion apparatus as defined in claim 2, wherein: The stirring blade (46) is rotatably connected inside the feed hopper (41), and the feed hopper (41) is interconnected with the threaded extruder (2).