Multi-layer co-extrusion composite extrusion pipe

Abstract

The utility model provides a multi-layer co-extrusion composite extrusion pipe, which relates to the technical field of industrial pipe production, and comprises a bottom plate, a material box arranged at the top of the bottom plate and used for storing and extruding materials; the extrusion pipe is arranged on one side of the material box and used for conveying materials and forming the materials; the extrusion assembly is arranged in the material box and the extrusion pipe and used for conducting rapid extrusion forming on the materials; and the material melting assembly is arranged in the material box and used for storing materials and heating, melting and dissolving the materials. According to the extrusion pipe, by optimizing the material heating and extrusion process, uniform heating and rapid forming of materials are achieved, and the quality and production efficiency of composite pipes are remarkably improved. Meanwhile, the unique attaching assembly design ensures tight combination of the inner layer material and the outer layer material, the layering risk of a finished product is reduced, and the stability and the reliability of the product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial pipe production, in particular to a multi-layer co-extrusion composite extrusion pipe. Background Art

[0002] Multi-layer co-extrusion composite pipes are widely used in many fields due to their excellent performance, such as water supply and drainage systems and chemical pipelines. Traditional production methods typically involve single-layer extrusion followed by composite extrusion, a process that is not only complex but also inefficient. With technological advancements, multi-layer co-extrusion technology has matured, enabling the simultaneous extrusion of multiple layers of composite pipes, simplifying the production process and improving efficiency.

[0003] However, existing multi-layer co-extruded composite pipes have certain limitations. On the one hand, uneven heating of the materials can lead to poor melting, affecting the quality of the pipe. On the other hand, the materials are not tightly bonded during the extrusion process, which can easily cause delamination in the finished pipe, reducing the reliability and service life of the product. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the background technology and provide a multi-layer co-extruded composite extrusion tube to improve the defects of the existing device such as poor production efficiency and low pipe fitting performance.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-layer co-extruded composite extrusion tube, comprising: a base plate, a material box is provided on the top of the base plate for storing materials and extruding; an extrusion tube, the extrusion tube is arranged on one side of the material box, for transporting materials and forming them; an extrusion assembly, the extrusion assembly is arranged inside the material box and the extrusion tube, for quickly extruding and forming the materials; a melt assembly, the melt assembly is arranged inside the material box, for storing materials and heating and melting the materials; and a bonding assembly, the bonding assembly is arranged inside the extrusion tube, for bonding and forming the two layers of pipes after forming to improve tightness.

[0006] Furthermore, the extrusion assembly includes: an outer layer material cavity opened inside the material box, an outer layer forming tube opened inside the extrusion tube, and the outer layer material cavity and the outer layer forming tube are connected; an inner layer material cavity opened inside the material box, an inner layer forming tube opened inside the extrusion tube, and the inner layer material cavity and the inner layer forming tube are connected; an extrusion pump arranged between the outer layer material cavity and the outer layer forming tube and between the inner layer material cavity and the inner layer forming tube.

[0007] Furthermore, the molten material assembly includes: multiple groups of electric heating rings arranged inside the material box, the multiple groups of electric heating rings are divided into inner ring electric heating rings, middle ring electric heating rings and outer ring electric heating rings; the inner ring electric heating rings are arranged inside the inner material cavity, for heating and dissolving the material inside the inner material cavity; the middle ring electric heating rings are arranged between the inner material cavity and the outer material cavity, for dissolving the material inside the inner material cavity and the outer material cavity; the outer ring electric heating rings are arranged on the outer surface of the outer material cavity, for dissolving the material inside the outer material cavity; a discharge pipe is arranged on one side of the outer material cavity and the inner material cavity.

[0008] Furthermore, the bonding component includes: an outer air duct opened inside the extruded tube close to the outer surface, an inner air duct inside the extruded tube close to the outer surface; and a blower arranged inside the outer air duct and the inner air duct.

[0009] Furthermore, the discharge pipe between the outer material cavity and the outer forming tube and the inner material cavity and the inner forming tube is used to carry and transfer the liquefied material. The inner wall of the discharge pipe is arranged in an arc-shaped structure, and the extrusion pump is arranged inside the discharge pipe.

[0010] Furthermore, a discharge platform is provided on the top of the discharge pipe, and the discharge platform is arranged in a funnel-shaped structure as a whole.

[0011] Furthermore, a plurality of heat conduction pipes are provided inside the outer material cavity and the inner material cavity, and an inner heat pipe connected to the electric heating ring is provided inside the heat conduction pipe.

[0012] Furthermore, air jets are provided on one side of the outer layer air duct and the inner layer air duct, and the air jets are both inclined toward the outer layer forming tube and the inner layer forming tube.

[0013] Furthermore, a filter is provided on one side of the outer air duct and the inner air duct, and the filter is a high-density filter with a mesh size of 1600.

[0014] Furthermore, a control panel is provided on the top of the base plate, and the control panel is electrically connected to the extrusion pump, the electric heating ring and the blower respectively.

[0015] The utility model provides a multi-layer co-extruded composite extrusion tube, which has the following beneficial effects:

[0016] The advantages of this utility model are that by optimizing the material heating and extrusion process, uniform heating and rapid forming of the material are achieved, significantly improving the quality and production efficiency of the composite pipe. At the same time, the unique lamination component design ensures a tight bond between the inner and outer layers of material, reducing the risk of delamination in the finished product and improving the stability and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the extrusion tube structure of the present utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the material box of the present utility model.

[0021] Figure 5 For the utility model Figure 2 A is an enlarged schematic diagram.

[0022] Figure 1-5 Middle: 1-bottom plate; 101-material box; 102-outer material cavity; 103-inner material cavity; 103a-discharge pipe; 104-extrusion pump; 105-electric heating ring; 106-discharge pipe; 107-discharge table; 108-inner heat pipe; 109-heat conduction pipe; 2-extrusion pipe; 201-outer molding pipe; 202-inner molding pipe; 203-outer air duct; 204-inner air duct; 205-blower; 206-filter; 207-jet nozzle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0025] The embodiments of the present application provide a multi-layer co-extruded composite extruded tube. This multi-layer co-extruded composite extruded tube can achieve uniform heating and rapid prototyping of materials by optimizing the material heating and extrusion processes, significantly improving the quality and production efficiency of the composite tube. Furthermore, the unique laminating component design ensures a tight bond between the inner and outer layers of material, reducing the risk of delamination in the finished product and improving product stability and reliability. The multi-layer co-extruded composite extruded tube is described in detail below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments.

[0026] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] See also Figure 1-5 middle

[0028] Example 1

[0029] The present embodiment provides a multi-layer co-extruded composite extrusion tube, comprising: a base plate 1, with a material box 101 provided on the top of the base plate 1 for storing and extruding materials; an extrusion tube 2, which is provided on one side of the material box 101 and is used to transport and shape materials; an extrusion assembly, which is provided inside the material box 101 and the extrusion tube 2 and is used to quickly extrude and shape the materials; a melt assembly, which is provided inside the material box 101 and is used to store and heat the materials to melt and dissolve them; and a bonding assembly, which is provided inside the extrusion tube 2 and is used to bond the two layers of the formed tube together to improve tightness.

[0030] During use, the material is fed into the material box 101, heated and melted by the melting assembly, and then enters the extrusion tube 2 through the extrusion assembly. Inside the extrusion tube 2, the material is formed by the extrusion assembly, and the lamination assembly ensures that the two layers of material are tightly combined. The integrated material box and extrusion tube design simplifies the production line layout, reduces the material transmission distance, and improves production efficiency and product quality.

[0031] Among them, a discharge platform 107 is provided on the top of the discharge pipe 106. The discharge platform 107 is arranged in a funnel-shaped structure as a whole. The funnel-shaped discharge platform 107 can guide more materials to be discharged at the same time, thereby improving the actual processing efficiency of the device.

[0032] The extrusion assembly includes: an outer material cavity 102 provided inside the material box 101, an outer forming tube 201 provided inside the extrusion tube 2, and the outer material cavity 102 and the outer forming tube 201 are connected; an inner material cavity 103 provided inside the material box 101, an inner forming tube 202 provided inside the extrusion tube 2, and the inner material cavity 103 and the inner forming tube 202 are connected; an extrusion pump 104 provided between the outer material cavity 102 and the outer forming tube 201 and between the inner material cavity 103 and the inner forming tube 202;

[0033] During use, after the material is heated and melted in the material box 101, it is sent into the extrusion pump 104 through the respective material cavities, the outer material cavity 102 and the inner material cavity 103, and then extruded into the extrusion tube 2. Through the independent material cavity and extrusion pump 104, the flow rate and pressure of the inner and outer layer materials can be controlled respectively, thereby obtaining a more uniform composite material pipe.

[0034] The molten material assembly includes: multiple groups of electric heating rings 105 arranged inside the material box 101, and the multiple groups of electric heating rings 105 are divided into inner ring electric heating rings, middle ring electric heating rings and outer ring electric heating rings; the inner ring electric heating ring is arranged inside the inner material cavity 103, and is used to heat and dissolve the material inside the inner material cavity 103; the middle ring electric heating ring is arranged between the inner material cavity 103 and the outer material cavity 102, and is used to dissolve the material inside the inner material cavity 103 and the outer material cavity 102; the outer ring electric heating ring is arranged on the outer surface of the outer material cavity 102, and is used to dissolve the material inside the outer material cavity 102; a discharge pipe 106 is arranged on one side of the outer material cavity 102 and the inner material cavity 103;

[0035] During use, solid materials are added to the outer material cavity 102 and the inner material cavity 103 through the discharge pipe 106, and the materials are placed in the material box 101. The materials are heated by the inner ring, middle ring and outer ring of the electric heating rings at different positions, so that the materials gradually reach a molten state. The design of multiple sets of electric heating rings 105 can provide more uniform heating, prevent local overheating from causing decomposition or carbonization of the material, and also improve heating efficiency.

[0036] Among them, the discharge pipe 103a between the outer material cavity 102 and the outer layer forming tube 201 and the inner material cavity 103 and the inner layer forming tube 202 is used to carry and transfer liquefied materials. The inner wall of the discharge pipe 103a is arranged in an arc-shaped structure, and the extrusion pump 104 is arranged inside the discharge pipe 103a. During use, the user-friendly discharge pipe 103a can guide the material more smoothly from the outer material cavity 102 to the outer layer forming tube 201 and from the inner material cavity 103 to the inner layer forming tube 202, thereby improving the transfer efficiency and uniformity of the material.

[0037] In particular, a plurality of heat conducting pipes 109 are provided inside the outer material cavity 102 and the inner material cavity 103, and an inner heat pipe 108 connected to the electric heating ring 105 is provided inside the heat conducting pipe 109. During use, the plurality of heat conducting pipes 109 can be used to connect the electric heating ring 105 and quickly heat the materials inside the outer material cavity 102 and the inner material cavity 103 by guiding the heat of the electric heating ring 105, thereby improving the heating uniformity of the device. In particular, a control panel is provided on the top of the bottom plate (1), and the control panel is electrically connected to the extrusion pump (104), the electric heating ring (105) and the blower (205) respectively. The control panel can quickly control the coordination and opening and closing of the extrusion pump (104), the electric heating ring (105) and the blower (205), thereby improving the convenience of use of the device.

[0038] Example 2

[0039] Based on Example 1, the laminating assembly includes: an outer air duct 203 provided inside the extrusion tube 2 near the outer surface, an inner air duct 204 provided inside the extrusion tube 2 near the outer surface; and a blower 205 provided inside the outer air duct 203 and the inner air duct 204.

[0040] During use, inside the extruded tube 2, the airflow generated by the blower 205 makes the inner and outer layers of materials stick together, thereby completing the bonding of the composite tube. By strengthening the bonding between the materials through air cooling technology, the tightness and yield rate of the composite material can be improved, and the generation of waste can be reduced.

[0041] Among them, an air jet 207 is provided on one side of the outer air duct 203 and the inner air duct 204. The air jets 207 are inclined toward the outer forming tube 201 and the inner forming tube 202. The inclined air jets 207 can form an angled airflow impact on the material flowing out of the forming tube, and use the impact of the airflow to make the two layers of pipes after forming firmly fit together, thereby improving the stability of the finished product of the device.

[0042] Among them, a filter 206 is provided on one side of the outer air duct 203 and the inner air duct 204. The filter 206 is a high-density filter with a mesh size of 1600. During use, the filter 206 can filter the air entering and exiting the device to prevent dust from adhering to the finished material and improve the quality of the finished product.

[0043] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0044] The above is a detailed introduction to a multi-layer co-extruded composite extruded tube provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layer co-extruded composite extrusion tube, characterized in that: include: A bottom plate (1), wherein a material box (101) is provided on the top of the bottom plate (1) for storing and extruding materials; An extrusion tube (2), the extrusion tube (2) being arranged on one side of the material box (101) and being used for conveying the material and performing molding; An extrusion assembly, the extrusion assembly being arranged inside the material box (101) and the extrusion tube (2) and being used for rapidly extruding and molding the material; A melt assembly, which is arranged inside the material box (101) and is used to store materials and heat, melt and dissolve the materials; and A laminating component is arranged inside the extruded tube (2) and is used to laminarly form the two layers of the formed tube to improve tightness.

2. The multi-layer co-extruded composite extruded tube according to claim 1, characterized in that: The extrusion assembly comprises: An outer material cavity (102) is provided inside the material box (101), an outer forming tube (201) is provided inside the extrusion tube (2), and the outer material cavity (102) and the outer forming tube (201) are connected; An inner material cavity (103) is provided inside the material box (101), an inner forming tube (202) is provided inside the extrusion tube (2), and the inner material cavity (103) and the inner forming tube (202) are connected; An extrusion pump (104) is provided between the outer layer material cavity (102) and the outer layer forming tube (201) and between the inner layer material cavity (103) and the inner layer forming tube (202).

3. The multi-layer co-extruded composite extruded tube according to claim 2, characterized in that: The melt assembly comprises: Multiple groups of electric heating rings (105) are arranged inside the material box (101), and the multiple groups of electric heating rings (105) are divided into inner ring electric heating rings, middle ring electric heating rings and outer ring electric heating rings; The inner electric heating ring is arranged inside the inner material cavity (103) and is used to heat and dissolve the material inside the inner material cavity (103); The middle electric heating ring is arranged between the inner material cavity (103) and the outer material cavity (102), and is used to dissolve the materials inside the inner material cavity (103) and the outer material cavity (102); The outer electric heating ring is arranged on the outer surface of the outer material cavity (102) and is used to dissolve the material inside the outer material cavity (102); A material discharge pipe (106) is provided on one side of the outer material cavity (102) and the inner material cavity (103).

4. The multi-layer co-extruded composite extruded tube according to claim 2, characterized in that: The fitting assembly includes: An outer air duct (203) is provided inside the extruded tube (2) close to the outer surface, and an inner air duct (204) is provided inside the extruded tube (2) close to the outer surface; A blower (205) is provided inside the outer air duct (203) and the inner air duct (204).

5. The multi-layer co-extruded composite extruded tube according to claim 2, characterized in that: The discharge pipe (103a) between the outer material cavity (102) and the outer forming tube (201) and between the inner material cavity (103) and the inner forming tube (202) is used to carry and transfer the liquefied material. The inner wall of the discharge pipe (103a) is arranged in an arc-shaped structure, and the extrusion pump (104) is arranged inside the discharge pipe (103a).

6. The multi-layer co-extruded composite extruded tube according to claim 3, characterized in that: A discharge platform (107) is provided on the top of the discharge pipe (106), and the discharge platform (107) is arranged in a funnel-shaped structure as a whole.

7. The multi-layer co-extruded composite extruded tube according to claim 3, characterized in that: A plurality of heat conducting pipes (109) are provided inside the outer material cavity (102) and the inner material cavity (103), and an inner heat pipe (108) connected to the electric heating ring (105) is provided inside the heat conducting pipe (109).

8. The multi-layer co-extruded composite extruded tube according to claim 4, characterized in that: Air jets (207) are provided on one side of the outer layer air duct (203) and the inner layer air duct (204), and the air jets (207) are both inclined toward the outer layer forming tube (201) and the inner layer forming tube (202).

9. The multi-layer co-extruded composite extruded tube according to claim 4, characterized in that: A filter screen (206) is provided on one side of the outer layer air duct (203) and the inner layer air duct (204), and the filter screen (206) is a high-density filter screen with a mesh size of 1600.

10. The multi-layer co-extruded composite extruded tube according to claim 2, characterized in that: A control panel is provided on the top of the bottom plate (1), and the control panel is electrically connected to the extrusion pump (104), the electric heating ring (105) and the blower (205) respectively.

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