Pipe forming extrusion structure

By designing the storage tank and the feeding assembly, and combining the drive motor to drive the threaded push rod and rotating gear, the problem of material sticking on the mold is solved, achieving uniform extrusion of the pipe surface and improving the output quality.

CN224545261UActive Publication Date: 2026-07-24TIANJIN TIANJIN AVIATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TIANJIN AVIATION TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing screw extruders suffer from material adhesion problems on the die, which affects the output efficiency.

Method used

The design incorporates a storage tank, a pushing assembly, and a rotating assembly. A drive motor drives a threaded push rod and a rotating gear to achieve uniform material pushing and mold rotation, preventing material sticking.

Benefits of technology

This results in a more uniform and smooth extrusion of the pipe fitting surface, preventing material from sticking to the mold surface and improving the output effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224545261U_ABST
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Abstract

The utility model discloses a pipe fitting forming extrusion structure, including the storage tank, the inside installation of storage tank has push material subassembly, and one end of storage tank is connected through the flange piece and extrusion cylinder bolt fixedly, and one end of extrusion cylinder integrally connects with the positioning swivel, and the positioning swivel rotation embeds in the inside of extrusion cylinder, and extrusion cylinder is driven rotation through rotating component, and the inside of extrusion cylinder is equipped with the inner lining mould, and one end of inner lining mould is fixed in the inside of extrusion cylinder through the locating disc, and the inside of locating disc is provided with a plurality of extrusion holes, and can drive the rotation of the pinion through the starting of second drive motor, and when the pinion rotates, the outer sleeve seat also rotates, and the rotation of outer sleeve seat can also make the pipe fitting rotate when extruding, make the surface of pipe fitting extrude more even smooth, avoid material to be stuck on the surface of outer sleeve seat and inner lining mould.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipe extrusion molding equipment, specifically to a pipe extrusion molding structure. Background Technology

[0002] With the rise of the polymer materials industry, polymer pipe fittings are widely used in construction, municipal engineering, chemical industry, automobile industry, and medical device industry. Pipe fitting extrusion molding technology is a core process in manufacturing for the continuous production of tubular structures. Currently, most extrusion equipment uses single-screw extruders and twin-screw extruders as the mainstream equipment. However, in current screw extruders, whether single-screw or twin-screw, the extruded material is conveyed, compressed, melted and plasticized in the die. But because the inner and outer surfaces of the plasticized material rely on the smoothness of the die, the material adheres to the die during long-term extrusion, affecting the output effect. Therefore, it is necessary to design a pipe fitting forming extrusion structure to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a pipe forming extrusion structure to solve the problem mentioned in the background art of material sticking on the mold and affecting the output effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe forming extrusion structure, including a storage tank, a pushing assembly installed inside the storage tank, one end of the storage tank being bolted to an extrusion cylinder via a flange, a positioning rotating ring integrally connected to one end of the extrusion cylinder, the positioning rotating ring being rotatably embedded inside the extrusion cylinder, the extrusion cylinder being driven to rotate by a rotating assembly, an inner liner mold being fitted inside the extrusion cylinder, one end of the inner liner mold being fixed inside the extrusion cylinder via a positioning plate, and a plurality of extrusion holes being opened inside the positioning plate.

[0005] Preferably, the pushing assembly includes a first drive motor installed at one end of the storage tank, the output end of the first drive motor being fixedly connected to a threaded push rod, the threaded push rod passing through the interior of the storage tank.

[0006] Preferably, the top of the storage tank is also provided with a feed inlet.

[0007] Preferably, the flange includes an upper flange that is fixedly welded to the storage tank, and the upper flange is fixedly connected to the lower flange by fixing bolts.

[0008] Preferably, the rotating assembly includes a second drive motor mounted on one side of the lower flange. A positioning plate is fixedly provided at the front end of the second drive motor. The output end of the second drive motor passes through the positioning plate and is fixedly connected to a rotating gear. The rotating gear meshes with a toothed groove opened in the outer sleeve.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. By starting the first drive motor, the threaded push rod can be rotated, pushing the material entering from the feed port to the front end of the storage tank, and then entering the inner cavity of the outer sleeve through the extrusion hole. The material enters the inner sleeve and works with the inner liner mold to extrude the tube. Starting the second drive motor can drive the rotating gear to rotate, and the rotating gear will also drive the outer sleeve to rotate. The rotation of the outer sleeve can make the tube rotate with it during extrusion, making the surface of the tube more uniform and smooth during extrusion, and preventing the material from sticking to the surface of the outer sleeve and the inner liner mold. Attached Figure Description

[0011] Figure 1 This is a diagram showing the overall structure of this utility model;

[0012] Figure 2 This is a diagram illustrating the internal structure of the storage tank of this utility model;

[0013] Figure 3 This is a structural diagram of the connecting part of the rotating assembly of this utility model.

[0014] In the diagram: 1. Storage tank; 2. First drive motor; 3. Feed inlet; 4. Upper flange; 5. Lower flange; 6. Extrusion cylinder; 7. Second drive motor; 8. Positioning plate; 9. Rotating gear; 10. Gear groove; 11. Outer sleeve seat; 12. Inner liner mold; 13. Positioning plate; 14. Extrusion hole; 15. Positioning swivel ring; 16. Threaded push rod. Detailed Implementation

[0015] 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.

[0016] Example 1

[0017] Please refer to Figure 1-3As shown, this utility model provides a pipe forming extrusion structure, including a storage tank 1. A pushing component is installed inside the storage tank 1. One end of the storage tank 1 is bolted to the extrusion cylinder 6 through a flange. The flange can fix the extrusion cylinder 6 and the storage tank 1 together and allow them to be separated for easy maintenance. It can also replace the extrusion mold according to different extruded pipe specifications. One end of the extrusion cylinder 6 is integrally connected to a positioning rotating ring 15. The positioning rotating ring 15 is rotatably embedded inside the extrusion cylinder 6. The extrusion cylinder 6 is driven to rotate by a rotating component. An inner liner mold 12 is installed inside the extrusion cylinder 6. One end of the inner liner mold 12 is fixed inside the extrusion cylinder 6 through a positioning plate 13. The positioning plate 13 has several sets of extrusion holes 14 inside. The extrusion holes 14 allow the material to enter the inner cavity of the outer sleeve seat 11.

[0018] Specifically, the feeding assembly includes a first drive motor 2 installed at one end of the storage tank 1. The output end of the first drive motor 2 is fixedly connected to a threaded push rod 16, which passes through the interior of the storage tank 1. The top of the storage tank 1 is also provided with a feed inlet 3, which can be connected to a feed pump to inject extruded material. The flange includes an upper flange 4 fixedly welded to the storage tank 1. The upper flange 4 is fixedly connected to a lower flange 5 by fixing bolts. The rotating assembly includes a second drive motor 7 installed on one side of the lower flange 5. A positioning plate 8 is fixedly provided at the front end of the second drive motor 7. The positioning plate 8 keeps the rotating gear 9 stable when rotating. The output end of the second drive motor 7 passes through the positioning plate 8 and is fixedly connected to the rotating gear 9. The rotating gear 9 meshes with the toothed groove 10 opened in the outer sleeve seat 11.

[0019] Specifically: by starting the first drive motor 2 to drive the threaded push rod 16 to rotate, the material is pushed to the front end of the storage tank 1. After being squeezed by the positioning plate 13, the material flows into the inner cavity of the outer sleeve seat 11 through the extrusion hole 14. As the material is extruded, it is extruded with the inner liner mold 12 to form a tube. During extrusion, the second drive motor 7 is started to drive the rotating gear 9 to rotate. The rotating gear 9 drives the outer sleeve seat 11 to rotate, which makes the material distribution more uniform during the extrusion of the tube.

[0020] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A pipe fitting forming extrusion structure, comprising a storage tank (1), characterized in that: The storage tank (1) is equipped with a feeding assembly. One end of the storage tank (1) is bolted to the extrusion cylinder (6) via a flange. One end of the extrusion cylinder (6) is integrally connected to a positioning rotating ring (15). The positioning rotating ring (15) is rotatably embedded inside the extrusion cylinder (6). The extrusion cylinder (6) is driven to rotate by a rotating assembly. An inner liner mold (12) is fitted inside the extrusion cylinder (6). One end of the inner liner mold (12) is fixed inside the extrusion cylinder (6) via a positioning plate (13). The positioning plate (13) has several sets of extrusion holes (14) inside.

2. The extrusion structure for forming pipe fittings according to claim 1, characterized in that: The pushing assembly includes a first drive motor (2) installed at one end of the storage tank (1), the output end of the first drive motor (2) is fixedly connected to a threaded push rod (16), and the threaded push rod (16) passes through the interior of the storage tank (1).

3. The extrusion structure for forming pipe fittings according to claim 1, characterized in that: The top of the storage tank (1) is also provided with a feed inlet (3).

4. The extrusion structure for forming pipe fittings according to claim 1, characterized in that: The flange includes an upper flange (4) that is fixedly welded to the storage tank (1), and the upper flange (4) is fixedly connected to the lower flange (5) by fixing bolts.

5. The extrusion structure for forming a pipe fitting according to claim 4, characterized in that: The rotating assembly includes a second drive motor (7) installed on one side of the lower flange (5). The front end of the second drive motor (7) is fixedly provided with a positioning plate (8). The output end of the second drive motor (7) passes through the positioning plate (8) and is fixedly connected to the rotating gear (9). The rotating gear (9) meshes with the toothed groove (10) opened in the outer sleeve (11).