Filter element for professional extrusion equipment

Abstract

The utility model discloses a filter element for professional extrusion equipment, which relates to the technical field of filter elements and comprises a main filter screen, a bottom filter screen, a top ring and a bottom ring. The top ring is fixedly connected to an opening in one end of the main filter screen, and the edge of the end of the top ring covers the main filter screen; the bottom filter screen is a circular sheet-shaped filter screen, is positioned at one end, far away from the top ring, of the main filter screen, and is used for blocking one end surface of the main filter screen; and the bottom ring is used for connecting the main filter screen and the bottom filter screen. According to the filter element disclosed by the utility model, through fine structure and material selection, the aims of improving the filtering efficiency, enhancing the structural strength and ensuring the long-term use reliability are fulfilled; the S-shaped design of the bottom ring is favorable for forming compact press-fit connection, so that the filtering layer and the supporting layer are tightly combined; the filter screen adopts a double-layer design, so that the filtering precision is ensured, and the structural strength and durability of the filter element are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a filter element for professional extrusion equipment. Background Art

[0002] Filter elements for extrusion equipment play an important role in the processing of plastics and rubber. They are responsible for filtering impurities in molten materials to ensure product quality. However, the following problems may occur during the use of filter elements for extrusion equipment:

[0003] After a period of use, the filter element may become clogged due to excessive impurities captured, resulting in increased back pressure and reduced production efficiency. The filter element needs to be replaced or cleaned regularly to prevent clogging.

[0004] The filter element material may be damaged due to long-term high temperature and mechanical pressure, especially the filter element connection is prone to damage. Improving the wear resistance and corrosion resistance of the filter element has become a technical challenge in filter element processing.

[0005] The filtration accuracy of existing filter elements is insufficient. For example, if the mesh size of the filter element is too large, it may not be able to effectively filter out fine impurities. Choosing the appropriate mesh size and weaving method, such as plain weave, twill weave and dense weave, can improve the filtration accuracy.

[0006] In view of this, there is an urgent need for a professional filter element for extrusion equipment to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a filter element for professional extrusion equipment to solve the above technical problems existing in the prior art.

[0008] To achieve the above purpose, the present invention provides the following solution: a filter element for professional extrusion equipment, comprising:

[0009] A main filter screen, which is a cylindrical filter screen with openings at both ends;

[0010] A top ring, the top ring is fixed to an opening at one end of the main filter screen, and forms a rim around the main filter screen from an end edge;

[0011] A bottom filter screen, which is a circular sheet filter screen, is located at one end of the main filter screen away from the top ring and is used to block one end surface of the main filter screen;

[0012] A bottom ring is used to connect the main filter screen and the bottom filter screen.

[0013] The above structure aims to develop a highly efficient filter element. Through careful structural and material selection, it achieves improved filtration efficiency, enhanced structural strength, and long-term reliability. Through this physical filtration mechanism, the filter element effectively removes impurities from the extruded material, improving product quality and the stability of the production process.

[0014] Preferably, the top ring includes an inner ring, an outer ring and an arc-shaped edge ring connecting the inner ring and the outer ring, and an extrusion gap is formed between the inner ring and the outer ring to accommodate the main filter screen, and the main filter screen is fixedly pressed in the extrusion gap.

[0015] Preferably, the top ring is made of a 1 mm thick aluminum plate in one piece to ensure its strength and durability.

[0016] Preferably, the bottom ring includes a horizontal bottom outer ring portion, a vertical inner support portion, and an S-shaped connecting portion connecting the bottom outer ring portion and the inner support portion, and the S-shaped connecting portion is bent to form a first pressing gap and a second pressing gap; the outer peripheral edge of the bottom filter is fixed and pressed in the first pressing gap; the bottom end of the main filter is bent inward along the outer side of the inner support portion to enter the second pressing gap, and is pressed in the second pressing gap.

[0017] Preferably, the bottom ring is made of a 0.5 mm thick aluminum plate in one piece to ensure its strength and durability.

[0018] Preferably, the main filter screen and the bottom filter screen are both double-layer structures, including a filter layer and a support layer, the filter layer provides fine filtration, and the support layer is used to improve structural strength.

[0019] Preferably, the main filter is welded into a cylindrical shape from a square filter to ensure shape and sealing.

[0020] Preferably, the support layer is located outside the filter layer and is arranged close to the filter layer to enhance the filtering effect and structural stability.

[0021] Preferably, the filter layer is a filter-grade wire mesh, or a corresponding wire mesh is selected according to the customer's filtering accuracy requirements, such as a 100-mesh wire mesh.

[0022] Preferably, the support layer is a support-grade wire mesh, or a corresponding wire mesh is selected according to the customer's filtration strength requirements, such as a 25-mesh wire mesh.

[0023] The utility model discloses the following technical effects:

[0024] The filter element of this utility model can be used in professional basic equipment, such as BKG equipment. The filter element is mainly based on a physical filtration mechanism to remove impurities and insoluble matter from the extruded material to ensure a smooth extrusion process and high quality of the final product. The main filter screen and the bottom filter screen are both double-layer structures, consisting of a filter layer and a support layer. This design not only ensures filtration accuracy but also improves the durability and service life of the filter element. The top ring and the bottom ring are respectively fixed to the two ends of the main filter screen to ensure the stability of the overall structure of the filter element. The S-shaped design of the bottom ring helps to form a tight press-fit connection, so that the filter layer and the support layer are closely combined and easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a front view of an embodiment of the utility model;

[0027] Figure 2 A top view of an embodiment of the present utility model;

[0028] Figure 3 for Figure 1 Cross-sectional view at AA in the middle;

[0029] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0030] Figure 5 This is a cross-sectional view of the top ring in the embodiment of the present utility model;

[0031] Figure 6 This is a cross-sectional view of the bottom ring in the embodiment of the present utility model;

[0032] Figure 7 This is a schematic diagram of the connection relationship between the top ring, main filter screen, bottom ring, and bottom filter screen in an embodiment of the present utility model.

[0033] In the figure: 1. Top ring; 2. Main filter screen; 3. Bottom ring; 4. Bottom filter screen; 5. Filter layer; 6. Support layer; 11. Inner ring; 12. Outer ring; 13. Side ring; 14. Extrusion gap; 31. Bottom outer ring; 32. S-shaped connecting part; 33. Inner support part; 34. First pressing gap; 35. Second pressing gap. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] Reference Figures 1 to 7 As shown, an embodiment of the present invention provides a filter element for professional extrusion equipment, including a main filter screen 2, a bottom filter screen 4, a top ring 1 and a bottom ring 3. The main filter screen 2 is designed to be cylindrical with openings at both ends. It is the main structure of the filter element and is used for the main filtering process; the top ring 1 is fixed to one end of the main filter screen 2 to form a edging, which enhances the structural stability while protecting the edge of the main filter screen 2. The top ring 1 is composed of an inner ring 11, an outer ring 12 and a side ring 13, forming an extrusion gap 14 for fixing the main filter screen 2, wherein the inner ring 11, the outer ring 12 and the side ring 13 are integrally formed, preferably made of an aluminum plate with a thickness of 1 mm through stamping, bending and other processes, and finally connected to the main filter screen 2 and pressed onto the edge of the main filter screen 2. The specific structure of the top ring 1 is as shown Figure 5 As shown; the bottom filter screen 4 is a circular sheet structure, which is used to block the end of the main filter screen 2 away from the top ring 1 to prevent the material from leaking from the bottom; the bottom ring 3 is used to connect the main filter screen 2 and the bottom filter screen 4, and its structure includes a horizontal bottom end outer ring portion 31, a vertical inner support portion 33 and an S-shaped connecting portion 32. The S-shaped connecting portion 32 forms two pressed gaps for fixing the two filter screens. The specific structure is as shown Figure 6 shown.

[0037] When the filter element with this structure is in use, as the extruded material passes through it, it first encounters the primary filter screen 2, which is composed of a fine mesh with a pore size determined by the desired filtration accuracy. Larger impurities are intercepted by the primary filter screen 2 and prevented from passing through the pores of the filter layer 5, thereby purifying the material. Through this physical filtration mechanism, the filter element effectively removes impurities from the extruded material, improving product quality and the stability of the production process.

[0038] like Figures 5 to 7As shown, specifically, the top ring 1 includes an inner ring 11, an outer ring 12, and an arc-shaped edge ring 13 connecting the inner ring 11 and the outer ring 12. An extrusion gap 14 is formed between the inner ring 11 and the outer ring 12 to accommodate the main filter 2, and the main filter 2 is fixedly pressed within the extrusion gap 14. The bottom ring 3 includes a horizontal bottom outer ring portion 31, a vertical inner support portion 33, and an S-shaped connecting portion 32 connecting the bottom outer ring portion 31 and the inner support portion 33. The S-shaped connecting portion 32 is bent to form a first pressing gap 34 and a second pressing gap 35. The outer peripheral edge of the bottom filter 4 is fixedly pressed within the first pressing gap 34. The bottom end of the main filter 2 is bent inward along the outer side of the inner support portion 33 to enter the second pressing gap 35 and is pressed within the second pressing gap 35.

[0039] In the above embodiment, the top ring 1 and the bottom ring 3 are made of 1 mm and 0.5 mm thick aluminum plates respectively, which are integrally formed to ensure their strength and durability.

[0040] In the above embodiment, the main filter screen 2 and the bottom filter screen 4 adopt a double-layer structure, including a filter layer 5 and a support layer 6, so as to enhance the filtering effect and structural stability.

[0041] Both the main filter 2 and the bottom filter 4 are double-layered, consisting of a filter layer 5 and a support layer 6. This design ensures filtration accuracy while increasing the durability and service life of the filter element. The support layer 6, located outside the filter layer 5 and positioned in close proximity to it, enhances the mechanical strength of the filter layer 5 and prevents deformation or damage under high pressure.

[0042] To further optimize the solution, the filter layer 5 uses a wire mesh that meets the customer's filtration accuracy requirements, such as a 100-mesh wire mesh, to provide fine filtration; the support layer 6 uses a wire mesh that meets the customer's filtration strength requirements, such as a 25-mesh wire mesh, and is located on the outside of the filter layer 5 to increase structural strength.

[0043] In the above embodiment, the main filter screen 2 is welded into a cylindrical shape by square filter screens to ensure shape and sealing.

[0044] The filter element for professional extrusion equipment with the above structure is designed to improve filtration efficiency, enhance structural strength and ensure reliability for long-term use through sophisticated structure and material selection. The top ring 1 and the bottom ring 3 are respectively fixed to the two ends of the main filter screen 2 to ensure the stability of the overall structure of the filter element. The design of the top ring 1 and the bottom ring 3 helps to form a compressed gap so that the filter layer 5 and the support layer 6 are tightly combined. The bottom ring 3 forms a pressed gap through the S-shaped connection part 32. These gaps are used to fix and connect the main filter screen 2 and the bottom filter screen 4 to ensure that they do not shift during the filtration process. With the filter element with the above structure, the material enters through one end of the filter element during the extrusion process and flows out from the other end after filtration. The filtered material is purer and impurities are intercepted by the filter element.

[0045] The parts not described in detail in the present invention are conventional technical means well known to those skilled in the art.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A filter element for professional extrusion equipment, characterized in that: include: A main filter screen (2), wherein the main filter screen (2) is a cylindrical filter screen with openings at both ends; A top ring (1), the top ring (1) is fixedly connected to an opening at one end of the main filter screen (2), and forms an edge around the main filter screen (2) from an end edge; A bottom filter screen (4), the bottom filter screen (4) is a circular sheet filter screen, located at one end of the main filter screen (2) away from the top ring (1), and used for blocking one end surface of the main filter screen (2); A bottom ring (3), the bottom ring (3) being used to connect the main filter (2) and the bottom filter (4); The bottom ring (3) comprises a horizontal bottom outer ring portion (31), a vertical inner support portion (33), and an S-shaped connecting portion (32) connecting the bottom outer ring portion (31) and the inner support portion (33), wherein the S-shaped connecting portion (32) is bent to form a first pressing gap (34) and a second pressing gap (35); the outer peripheral edge of the bottom filter (4) is fixedly pressed in the first pressing gap (34); the bottom end of the main filter (2) is bent inward along the outer side of the inner support portion (33) to enter the second pressing gap (35) and is pressed in the second pressing gap (35).

2. The filter element for professional extrusion equipment according to claim 1, characterized in that: The top ring (1) comprises an inner ring (11), an outer ring (12), and an arc-shaped edge ring (13) connecting the inner ring (11) and the outer ring (12); an extrusion gap (14) for accommodating the main filter (2) is formed between the inner ring (11) and the outer ring (12); and the main filter (2) is fixedly pressed in the extrusion gap (14).

3. The filter element for professional extrusion equipment according to claim 2, characterized in that: The top ring (1) is made of a 1 mm thick aluminum plate in one piece.

4. The filter element for professional extrusion equipment according to claim 1, characterized in that: The bottom ring (3) is made of a 0.5 mm thick aluminum plate in one piece.

5. The filter element for professional extrusion equipment according to claim 1, characterized in that: The main filter screen (2) and the bottom filter screen (4) are both double-layer structures, including a filter layer (5) and a support layer (6).

6. The filter element for professional extrusion equipment according to claim 5, characterized in that: The main filter screen (2) is welded into a cylindrical shape by a square filter screen.

7. The filter element for professional extrusion equipment according to claim 6, characterized in that: The support layer (6) is located outside the filter layer (5) and is arranged closely to the filter layer (5).

8. The filter element for professional extrusion equipment according to claim 5, characterized in that: The filter layer (5) is a filter-grade wire mesh.

9. The filter element for professional extrusion equipment according to claim 5, characterized in that: The support layer (6) is a support-grade wire mesh.

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