Anti-blocking plastic extruder
By introducing improved designs for the fixing and conveying mechanisms in the plastic extruder, the problems of raw material blockage and voids were solved, enabling continuous material conveying and compact processing, and improving the working continuity and efficiency of the extruder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU UNITECH NEW MATERIAL CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-21
AI Technical Summary
Existing plastic extruders lack anti-clogging functions, making it easy for raw materials to get stuck in the feed hopper. Furthermore, the single-screw design results in numerous internal voids during material transport, affecting the continuity and normal operation of the extruder.
An anti-clogging plastic extruder was designed, which uses a fixed mechanism to connect the extruder shell and includes a hopper, a conveying pipe and a material conveying mechanism. By using the parallel arrangement of short and long conveying components, combined with the design of cutter and screw components, synchronous processing and compact conveying of materials can be achieved, preventing clogging and improving the compactness of materials.
It effectively prevents raw material blockage, ensures continuous material conveying, reduces internal voids, guarantees continuous operation of the extruder, and improves efficiency.
Smart Images

Figure CN224145314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder technology, specifically to an anti-clogging plastic extruder. Background Technology
[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, while the downstream equipment that matches it, the plastic extrusion molding machine, is called the auxiliary machine. After years of development, the plastic extruder has evolved from the original single screw to various models such as twin screw, multi screw, and even screwless. The plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, and flat filaments to form various plastic extrusion molding production lines.
[0003] Existing plastic extruders have some problems, such as the lack of anti-clogging function, which makes it easy for raw materials to get stuck in the feed hopper during use, preventing them from entering the extruder normally. In addition, the existing extruders use a single screw design, which results in more internal voids during material transport, making it impossible to guarantee the continuity of extrusion and affecting the normal operation of the plastic extruder, which is not conducive to its use.
[0004] To address the aforementioned problems, an anti-clogging plastic extruder is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-clogging plastic extruder, which solves some problems of existing plastic extruders in the background art, such as the lack of anti-clogging function, the easy blockage of raw materials in the feed hopper during use, which prevents the raw materials from entering the extruder normally, and the existing extruders adopt a single screw form, which results in more internal cavities during raw material transportation, which cannot guarantee the extrusion continuity of the extruder, affects the normal operation of the plastic extruder, and is not conducive to people's use.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging plastic extruder, comprising a fixing mechanism, an extruder housing fixedly mounted on the upper end of the fixing mechanism, a material conveying mechanism rotatably mounted inside the extruder housing, the extruder housing comprising a hopper component fixedly mounted on the upper end of the fixing mechanism, a conveying pipe fixedly mounted on one side of the hopper component, the hopper component comprising a material leakage frame mounted on one side of the conveying pipe, a square cone hopper fixedly mounted on the upper end of the material leakage frame, the material conveying mechanism comprising a short conveying component and a long conveying component arranged side by side within the material leakage frame, a driven wheel and a driving wheel respectively meshing at one end of the short conveying component and the long conveying component, a second auger component fixedly mounted on one side of the driven wheel, a cutter mounted on the side of the second auger component, and a conveying screw fixedly connected to one side of the first auger component.
[0007] Preferably, the fixing mechanism includes a fixing frame, and the upper end of the fixing frame is fixed with supporting members for supporting the extruder housing.
[0008] Preferably, the fixing mechanism further includes a drive motor fixedly mounted at one end of the fixing frame, and the output end of the drive motor is provided with a coupling.
[0009] Preferably, the output end of the coupling is provided with an output plug.
[0010] Preferably, the output plug is inserted into the drive wheel.
[0011] Preferably, the extruder housing further includes a tapered extrusion head fixedly disposed on one side of the delivery pipe.
[0012] Preferably, the spirals of the second spiral component and the first spiral component are arranged symmetrically about the material leakage frame.
[0013] Preferably, a conical head is fixedly provided at one end of the conveying screw, and the conical head is located inside the conical extrusion head.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model provides an anti-clogging plastic extruder. Through the setting of the extruder shell, the hopper and the conveying pipe are connected to each other. The square cone hopper is set to realize material storage. The material leakage frame is set at the lower end of the square cone hopper, which provides a large conveying and processing space for the conveyed material. It initially solves some problems existing in the plastic extruder, such as the lack of anti-clogging function, and the problem that the raw material is easily blocked in the feed hopper during use, which prevents the raw material from entering the extruder normally.
[0016] 2. The anti-clogging plastic extruder provided by this utility model achieves synchronous processing of materials during material conveying by arranging short conveying components and long conveying components in parallel in the material conveying mechanism. The synchronous processing and the increase in material space effectively prevent material blockage and solve some problems existing in the plastic extruder, such as the lack of anti-clogging function, which makes it easy for raw materials to get stuck in the feed hopper during use, preventing the raw materials from entering the extruder normally.
[0017] 3. The present invention provides an anti-clogging plastic extruder, which uses the cutting blades at the outer ends of the short conveying component and the long conveying component in the material conveying mechanism to extrude, chop and convey the material. A space is provided between the first spiral component and the conveying spiral rod to concentrate the material on one side of the conveying pipe, improve the compactness of the material inside the conveying pipe, and avoid material breakage during extrusion. This solves the problem that the existing plastic extruders use a single spiral, which results in many internal voids during raw material conveying, making it impossible to guarantee the extrusion continuity of the extruder, affecting the normal operation of the plastic extruder and making it unsuitable for use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a top view of the overall structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the fixing mechanism and the extruder housing of this utility model;
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the extruder housing of this utility model;
[0022] Figure 5 This is a schematic diagram of the material conveying mechanism of this utility model.
[0023] In the diagram: 1. Fixing mechanism; 11. Fixing frame; 12. Support component; 13. Drive motor; 14. Coupling; 141. Output rod; 2. Extruder housing; 21. Hopper component; 211. Square cone hopper; 212. Material discharge frame; 22. Conveying pipe; 23. Conical extrusion head; 3. Material conveying mechanism; 31. Long conveying assembly; 311. Drive wheel; 312. First auger component; 3121. Cutter; 313. Conveying auger; 314. Conical head; 32. Short conveying assembly; 321. Driven wheel; 322. Second auger component. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0026] Combination Figure 1This utility model discloses an anti-clogging plastic extruder, including a fixing mechanism 1. An extruder housing 2 is fixedly installed at the upper end of the fixing mechanism 1. A material conveying mechanism 3 is rotatably installed inside the extruder housing 2. The extruder housing 2 includes a hopper component 21 fixed to the upper end of the fixing mechanism 1. A conveying pipe 22 is fixedly installed on one side of the hopper component 21. The hopper component 21 includes a material leakage frame 212 installed on one side of the conveying pipe 22. A square cone hopper 211 is fixedly installed at the upper end of the material leakage frame 212. The material conveying mechanism 3 includes a short conveying component 32 and a long conveying component 31 arranged side by side in the material leakage frame 212. A driven wheel 321 and a driving wheel 311 are respectively meshed at one end of the short conveying component 32 and the long conveying component 31. A second spiral component 322 is fixedly installed on one side of the driven wheel 321. A cutter 3121 is installed on the side of the second spiral component 322. A conveying spiral rod 313 is fixedly connected to one side of the first spiral component 312.
[0027] Specifically, the hopper component 21 and the conveying pipe 22 are interconnected. The square cone hopper 211 is designed to store material, and the material leakage frame 212 is located at the lower end of the square cone hopper 211, providing a larger conveying and processing space for the conveyed material. The parallel arrangement of the short conveying component 32 and the long conveying component 31 enables synchronous processing during material conveying. The synchronous processing and the increased material space effectively prevent material blockage. The meshing arrangement of the driven wheel 321 and the driving wheel 311 drives the second spiral component 322 and the first spiral component 312 to rotate in opposite directions. At the same time, the cutting blades 3121 on the outer side of the second spiral component 322 and the first spiral component 312 squeeze, chop and convey the material. There is a space between the first spiral component 312 and the conveying screw 313, which concentrates the material on one side of the conveying pipe 22, improves the compactness of the material inside the conveying pipe 22 and avoids material extrusion and breakage.
[0028] The present invention will be further described below with reference to the embodiments.
[0029] Example 1:
[0030] Combination Figure 2 and Figure 3 The fixing mechanism 1 includes a fixing frame 11, and a support member 12 for supporting the extruder housing 2 is fixed side by side at the upper end of the fixing frame 11. The fixing frame 11 fixes the support member 12, and the support member 12 is used to support the extruder housing 2.
[0031] The fixing mechanism 1 also includes a drive motor 13 fixedly installed at one end of the fixing frame 11. The output end of the drive motor 13 is provided with a coupling 14. The output end of the drive motor 13 is connected to the coupling 14. The drive motor 13 drives the material conveying mechanism 3 to rotate through the coupling 14 to realize material conveying.
[0032] The output end of the coupling 14 is provided with an output plug 141, which is inserted into the long conveying assembly 31 to drive the long conveying assembly 31 to rotate.
[0033] The output rod 141 is inserted into the drive wheel 311 and drives the drive wheel 311 to rotate. The short conveyor assembly 32 is driven to rotate synchronously through the meshing of the drive wheel 311 and the driven wheel 321.
[0034] Example 2:
[0035] Combination Figures 3-5 The extruder housing 2 also includes a conical extrusion head 23 fixedly disposed on one side of the conveying pipe 22, with the conical extrusion head 23 disposed at one end to realize material extrusion.
[0036] The spirals of the second spiral component 322 and the first spiral component 312 are arranged symmetrically about the material leakage frame 212. This structure ensures that the second spiral component 322 and the driven wheel 321 do not interfere with each other when they rotate in opposite directions, and can also simultaneously chop the material to prevent blockage.
[0037] A conical head 314 is fixedly provided at one end of the conveying screw 313. The conical head 314 is located inside the conical extrusion head 23. The conical head 314 and the conical extrusion head 23 work together to extrude materials.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" 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 process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clog-proof plastic extruder comprising a fixing mechanism (1), characterized in that: The upper end of the fixing mechanism (1) is fixedly provided with an extruder housing (2), and the inside of the extruder housing (2) is rotatably provided with a material conveying mechanism (3); The extruder housing (2) includes a hopper component (21) fixed to the upper end of the fixing mechanism (1). A conveying pipe (22) is fixedly provided on one side of the hopper component (21). The hopper component (21) includes a material leakage frame (212) provided on one side of the conveying pipe (22). A square cone hopper (211) is fixedly provided at the upper end of the material leakage frame (212). The material conveying mechanism (3) includes a short conveying component (32) and a long conveying component (31) arranged side by side in the material leakage frame (212). The short conveying assembly (32) and the long conveying assembly (31) are respectively equipped with a driven wheel (321) and a driving wheel (311) at one end. A second spiral component (322) is fixedly provided on one side of the driven wheel (321), and a cutter (3121) is provided on the side of the second spiral component (322). A first spiral component (312) is fixedly provided on one side of the driving wheel (311), and a conveying spiral rod (313) is fixedly connected to one side of the first spiral component (312).
2. A plastic extruder with anti-jamming according to claim 1, characterized in that: The fixing mechanism (1) includes a fixing frame (11), and the upper end of the fixing frame (11) is fixed with a support member (12) for supporting the extruder housing (2).
3. A plastic extruder with anti-jamming according to claim 1, characterized in that: The fixing mechanism (1) also includes a drive motor (13) fixedly installed at one end of the fixing frame (11), and the output end of the drive motor (13) is provided with a coupling (14).
4. A plastic extruder according to claim 3, wherein: The output end of the coupling (14) is provided with an output plug (141).
5. A plastic extruder with anti-jamming according to claim 4, characterized in that: The output plug (141) is inserted into the drive wheel (311).
6. A plastic extruder with anti-jamming according to claim 1, characterized in that: The extruder housing (2) also includes a conical extrusion head (23) fixedly disposed on one side of the conveying pipe (22).
7. A plastic extruder with anti-jamming according to claim 1, characterized in that: The spirals of the second spiral component (322) and the first spiral component (312) are arranged symmetrically about the material leakage frame (212).
8. A plastic extruder according to claim 1, wherein: One end of the conveying screw (313) is fixedly provided with a conical head (314), which is located inside the conical extrusion head (23).