Filter sleeve convenient for edge rolling, riveting and notch punching

Abstract

The utility model relates to the technical field of filters, in particular to a filter sleeve convenient for edge rolling, riveting and notch punching, which comprises a square metal sheet and a base, the metal sheet is edge-rolled to form a cylindrical sleeve, one end of the sleeve is arranged on the base, and a hanging component is arranged at the other end of the sleeve. The hooking assembly is located at the notch punching position of the sleeve and comprises a first hooking piece and a second hooking piece, the first hooking piece is arranged on one side of the metal piece, and the second hooking piece is arranged on the other side of the metal piece; and when the metal sheet is rolled, the first hanging piece and the second hanging piece are buckled, so that the two sides of the metal sheet are spliced together. The hooking assembly is arranged at the position of the notch to be punched, the metal sheet is rolled to form the sleeve, and then the hooking assembly is punched to form the notch, so that the problem of notch butt joint of the metal sheet in the rolling process can be avoided, and the production efficiency of products can be improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter sleeve that is easy to roll, rivet, and punch notches. Background Technology

[0002] In existing technologies, the metal outer sleeve of a filter is one of the key components of a filtration system, primarily used to provide physical support and protect the internal filter element from external environmental influences. To facilitate assembly with the filter element, a notch is typically provided on the outer sleeve. This notch is designed to ensure that the filter element can be correctly positioned and secured within the outer sleeve, thereby guaranteeing the stability and efficiency of the entire filtration system.

[0003] However, traditional manufacturing processes face significant technical challenges in meeting this design requirement. Traditional methods generally include the following steps:

[0004] Pre-forming the notch stage: First, the required notch is punched into a flat metal sheet using a stamping machine. This process requires precise control over the position, size, and shape of the notch to meet the requirements of subsequent assembly.

[0005] Rolling and forming stage: Next, the notched metal sheet is rolled into a circle using specific molds and processes to form the desired sleeve shape. During this process, the notch makes it easy for the metal sheet to become asymmetrical or irregular during rolling, resulting in a final sleeve shape that does not meet the expected standards.

[0006] This production process of punching a notch first and then rolling it has several main problems:

[0007] Alignment is difficult: Since the notch already exists on the metal sheet before rolling, it is difficult to accurately control the position of the notch during the rolling process, which may lead to a decrease in the yield.

[0008] Low production efficiency: To solve the above alignment problems, it is often necessary to add extra manual calibration steps or use more complex automated equipment, which undoubtedly increases production costs and time consumption.

[0009] Unstable quality: Even after adjustments, it is still difficult to guarantee the consistency of quality of each sleeve due to differences in material properties and processing errors, which poses a potential risk to the overall performance of the filter.

[0010] Based on the above analysis, there is an urgent need for a new manufacturing method or improved structural design to solve the problems of assembly difficulties, low production efficiency and unstable quality caused by pre-drilled notches in the production process of metal outer sleeves, thereby improving the efficiency of the overall production line and product quality. Utility Model Content

[0011] This utility model addresses the problems of existing technology by providing a filter sleeve that facilitates rolling, riveting, and punching notches. A hooking component is set at the position where the notch is to be punched. After the metal sheet is rolled into a sleeve, the hooking component is punched to form a notch, which can avoid the problem of notch connection during the rolling process of the metal sheet and help improve the production efficiency of the product.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a filter sleeve that is easy to roll, rivet, and punch notches, comprising a metal sheet and a base. The metal sheet is square and is rolled to form a cylindrical sleeve. One end of the sleeve is mounted on the base, and the other end of the sleeve is mounted on a hook assembly. The hook assembly is located at the punch notch of the sleeve. The hook assembly includes a first hook piece and a second hook piece. The first hook piece is mounted on one side of the metal sheet, and the second hook piece is mounted on the other side of the metal sheet. When the metal sheet is rolled, the first hook piece and the second hook piece are engaged to splice the two sides of the metal sheet together.

[0013] The metal sheet has several barbs on one side and several barb holes on the other side. The barbs are located on the inner surface of the sleeve and the barb holes are located on the outer surface of the sleeve. When the metal sheet is rolled into a circle, the barbs are inserted into the corresponding barb holes so that the two sides of the metal sheet are joined together.

[0014] Preferably, the hook assembly is square in shape, and the size of the hook assembly is the same as the size of the notch to be punched on the sleeve.

[0015] Preferably, in the radial direction of the sleeve, the cross-sectional shape of both the first and second hook pieces is U-shaped.

[0016] Preferably, the base is provided with a cylinder, the diameter of which is smaller than the diameter of the sleeve. After the sleeve is installed on the base, an annular groove for assembling the filter element is formed between the sleeve and the cylinder.

[0017] Preferably, the base is provided with a mounting ring, the mounting ring is located in the annular groove, and the bottom of the sleeve is sleeved on the outer periphery of the mounting ring to fix the sleeve to the base.

[0018] Preferably, the mounting ring has a plurality of positioning grooves, and the inner surface of the sleeve is provided with a plurality of positioning strips. After the sleeve is fitted onto the mounting ring, the positioning strips are inserted into the corresponding positioning grooves.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a filter sleeve that facilitates rolling, riveting, and punching notches. First, a metal sheet is rolled into a sleeve. The shape of the sleeve is then fixed using a hook assembly and barbs. External welding is then used to form the sleeve. Next, the hook assembly is punched to create notches, completing the sleeve production process. This invention prioritizes rolling the sleeve before punching the notches, avoiding difficulties in rolling after punching the notches, thus improving production efficiency and quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the metal sheet of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 for Figure 2 A bird's-eye view;

[0024] Figure 4 This is a schematic diagram of the structure of this utility model with barbs;

[0025] Figure 5 This is a schematic diagram of the barb and barb hole of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the present invention, in which the barb is assembled in the barb hole;

[0027] Figure 7 This is an exploded structural diagram of the present invention;

[0028] Figure 8 A schematic diagram of the structure of the metal sheet of this utility model with positioning strips.

[0029] exist Figures 1 to 8 The reference numerals in the figures include:

[0030] 1-Metal sheet, 2-Base, 3-Sleeve, 4-Hanging assembly, 5-First hanging piece, 6-Second hanging piece, 7-Notch, 8-Barb, 9-Barb hole, 10-Cylinder, 11-Mounting ring, 12-Positioning groove, 13-Positioning strip. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0032] This embodiment provides a filter sleeve 3 that is easy to roll, rivet, and punch notch 7, such as... Figures 1 to 8The device includes a metal sheet 1 and a base 2. The metal sheet 1 is square and has honeycomb-shaped holes for filtration. The metal sheet 1 is rolled into a cylindrical sleeve 3. One end of the sleeve 3 is attached to the base 2, and the other end of the sleeve 3 is attached to a hook assembly 4. The hook assembly 4 is located at the notch 7 of the sleeve 3. The hook assembly 4 includes a first hook piece 5 and a second hook piece 6. The first hook piece 5 is attached to one side of the metal sheet 1, and the second hook piece 6 is attached to the other side of the metal sheet 1. When the metal sheet 1 is rolled into a cylinder, the first hook piece 5 and the second hook piece 6 are fastened together so that the two sides of the metal sheet 1 are joined together.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, a sheet of metal 1 is rolled into a circular sleeve 3. The two sides of the metal sheet 1 need to be joined to fix the shape of the sleeve 3. Therefore, this embodiment provides a hooking assembly 4, which, after rolling, engages the first hooking piece 5 with the second hooking piece 6, thus joining the two sides of the metal sheet 1 together. Furthermore, this embodiment also includes... Figures 4 to 6 The structure of the barbs 8 shown is as follows: one side of the metal sheet 1 has several barbs 8, and the other side of the metal sheet 1 has several barb holes 9. The barbs 8 are located on the inner surface of the sleeve 3, and the barb holes 9 are located on the outer surface of the sleeve 3. When the metal sheet 1 is rolled up, the barbs 8 are inserted into the corresponding barb holes 9. The barbs 8 are arranged axially around the sleeve 3 so that the two sides of the metal sheet 1 are joined together. With the help of the hanging assembly 4, the rolled-up metal sheet 1 can be fixed into the sleeve 3. Then, the joint of the metal sheet 1 is welded by external welding equipment to fix the sleeve 3 into shape. The barbs 8 facilitate the welding of the sleeve 3 and prevent inaccurate jointing of the two sides of the metal sheet 1, thus contributing to high-efficiency welding. Furthermore, the barbs 8 are inclined relative to the metal sheet 1, that is, the barbs 8 are... Figure 5 The setup shown adopts an inclined shape, which makes it easy to insert the barb 8 into the barb hole 9. After being inserted into the barb hole 9, the barb 8 is not easy to detach from the barb hole 9 under the tension of splicing the two sides of the metal sheet 1. Therefore, without the assistance of human intervention, the stability of splicing between the two sides of the metal sheet 1 can be guaranteed, and the stability during welding can be improved.

[0034] like Figure 3As shown, the hook assembly 4 is square in shape, and its size is the same as the notch 7 to be punched in the sleeve 3. In the radial direction of the sleeve 3, the first hook piece 5 and the second hook piece 6 both have a U-shaped cross-section. The U-shape facilitates the fastening of the first hook piece 5 and the second hook piece 6 together, and ensures that the size and shape of the hook assembly 4 match the shape of the notch 7. Therefore, after the metal sheet 1 is rolled into a circle, the hook assembly 4 can be directly punched off to form the notch 7. Furthermore, the hook assembly 4 does not hinder the subsequent assembly of the sleeve 3 with filter elements and other components, making it more practical. It also avoids the difficulty in rolling the metal sheet 7 due to pre-punching the notch 7 in existing technologies.

[0035] like Figure 7 and Figure 8 As shown, the base 2 is provided with a cylinder 10, the diameter of which is smaller than the diameter of the sleeve 3. After the sleeve 3 is installed on the base 2, an annular groove for assembling the filter element is formed between the sleeve 3 and the cylinder 10. Furthermore, the base 2 is provided with an installation ring 11, which is located in the annular groove. The bottom of the sleeve 3 is fitted onto the outer circumference of the installation ring 11 to fix the sleeve 3 to the base 2. To facilitate assembly and positioning, the installation ring 11 has several positioning grooves 12. Several positioning strips 13 are installed on the inner surface of the sleeve 3. After the sleeve 3 is fitted onto the installation ring 11, the positioning strips 13 are inserted into the corresponding positioning grooves 12.

[0036] Specifically, the sleeve 3 is fitted onto the mounting ring 11, and the positioning strip 13 is inserted along the positioning groove 12. The positioning strip 13 facilitates the fitting of the sleeve 3 onto the outer periphery of the mounting ring 11 and has a guiding function. Furthermore, the top of the mounting ring 11 can also be set to a rounded corner to facilitate the fitting of the sleeve 3 and also has a guiding function. After the sleeve 3 is fixed, it can be further fixed by welding with external welding equipment. This embodiment does not impose any restrictions.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A filter sleeve that is easy to roll, rivet, and punch notches, characterized in that: The device includes a metal sheet and a base. The metal sheet is square and rolled into a cylindrical sleeve. One end of the sleeve is attached to the base, and the other end of the sleeve is attached to a hook assembly located at a notch in the sleeve. The hook assembly includes a first hook piece and a second hook piece. The first hook piece is attached to one side of the metal sheet, and the second hook piece is attached to the other side of the metal sheet. When the metal sheet is rolled into a cylindrical shape, the first hook piece and the second hook piece are engaged to join the two sides of the metal sheet together. The metal sheet has several barbs on one side and several barb holes on the other side. The barbs are located on the inner surface of the sleeve and the barb holes are located on the outer surface of the sleeve. When the metal sheet is rolled into a circle, the barbs are inserted into the corresponding barb holes so that the two sides of the metal sheet are joined together.

2. The filter sleeve with a notch that is easy to roll, rivet, and punch according to claim 1, characterized in that: The hook assembly is square in shape, and its size is the same as the size of the notch to be punched on the sleeve.

3. The filter sleeve with a notch that is easy to roll, rivet, and punch according to claim 1, characterized in that: In the radial direction of the sleeve, the cross-sectional shape of both the first and second hook pieces is U-shaped.

4. The filter sleeve with a notch that is easy to roll, rivet, and punch according to claim 1, characterized in that: The base is provided with a cylinder, the diameter of which is smaller than the diameter of the sleeve. After the sleeve is installed on the base, an annular groove for assembling the filter element is formed between the sleeve and the cylinder.

5. A filter sleeve with a notch that is easy to roll, rivet, and punch according to claim 4, characterized in that: The base is provided with a mounting ring, which is located in the annular groove. The bottom of the sleeve is fitted onto the outer circumference of the mounting ring to fix the sleeve to the base.

6. The filter sleeve with a notch that is easy to roll, rivet, and punch according to claim 5, characterized in that: The mounting ring has several positioning grooves, and the inner surface of the sleeve is equipped with several positioning strips. After the sleeve is fitted onto the mounting ring, the positioning strips are inserted into the corresponding positioning grooves.

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