CN114307444B - Device and folding method for folding auxiliary filter material into filter element - Google Patents

Abstract

The invention relates to a device and a folding method for folding an auxiliary filter material into a filter core. The device is used to assist the filter material of soft material to be folded into a filter element, and includes a conical central fixed column for fixing the inner tube of the folded filter element; with the central fixed column as the center, several support rods are evenly arranged on the outer ring, and the support rods are surrounded. The diameter of the ring matches the inner diameter of the folded filter element shell; one end of the metal sheet is fixed on a support rod, and a ring is formed around the inner side of the support rod, and the other end of the metal sheet is either fixed or free-rolled. Insert the pleated filter material layer by layer from the opening of the ring ring. When the number of layers reaches the requirement, seal the end at the ring ring opening, and then press the filter material tightly; then put one end of the ring filter material on the shell , From the other end, forcefully insert the ring-shaped filter material into the shell, and finally weld the end cover of the shell to form a complete folded filter element.

Description

Device and folding method for folding auxiliary filter material into filter element

technical field

The invention relates to a device and a folding method for folding an auxiliary filter material into a filter core, belonging to the field of folded filter core processing.

Background technique

The filter material in the ordinary pleated filter element has high stiffness and is not easy to deform after being pleated, and can be easily inserted into the skeleton to form a filter element. However, some very soft and thin filter materials are still easy to deform after pleating, and in order to achieve a higher filtration area, it is required that the number of pleats of the filter material in the skeleton be as many as possible, which leads to the pleated filter material When stuffing into the frame, many problems occur, such as the filter material inserted into the frame is bent, or uneven, or there are too many pleats, and there is a phenomenon of cliffs, which cannot be inserted into the frame.

Contents of the invention

The invention relates to a device and a folding method for folding an auxiliary filter material into a filter core. This device is used to assist the filter material of soft material to be folded into a filter element, so as to solve various problems when the pleated filter material is inserted into the frame, and at the same time, the filter material with a higher number of pleats can be inserted into the frame to form a high filtration efficiency. area of the folded filter element.

The invention discloses a device for folding an auxiliary filter material into a filter element, which comprises the following parts:

A device for folding the auxiliary filter material into a filter element, which includes a conical central fixing column for fixing the inner tube of the folded filter element, and several support rods are evenly arranged on the outer ring with the central fixing column as the center, and the diameter of the circle surrounded by the support rods is Match the inner diameter of the folded filter element housing; fix one end of the metal sheet on a support rod, and form a ring along the inner side of several support rods, and the other end of the metal sheet is either fixed or free-rolled.

Preferably, the width range of the metal sheet is between nine tenths and one half of the width of the filter material.

Preferably, the number of the support rods is greater than four.

Preferably, according to the different diameters of the processed pleated filter element, two or more turns of support rods are installed.

The invention also discloses a method for folding the filter material. The pleated filter material is stuffed layer by layer from the opening of the ring ring. Then put one end of the ring-shaped filter material on the shell, forcefully insert all the ring-shaped filter material into the shell from the other end, and finally weld the end cover of the shell to form a complete folded filter element.

The device of the invention can make it easier for the soft film material to be loaded into the frame material, and is not easily deformed during loading into the frame material, increases the effective area of the material, facilitates the processing of filter materials with higher pleats into filter core products, and improves the work efficiency of workers .

Description of drawings

Fig. 1 is a structural schematic diagram of the device of the present invention: 1-central fixed column, 2-support rod, 3-metal sheet, 4-pleated filter material.

Fig. 2 is a schematic diagram of the structural side of the inventive device.

Fig. 3 is a schematic diagram of the folded filter material in the invention.

detailed description

A device for folding the auxiliary filter material into a filter element, including a conical central fixing column 1 for fixing the inner tube of the folded filter element, with the central fixing column 1 as the center and outer ring evenly arranged with several support rods 2, and the support rods 2 form a The diameter of the ring matches the inner diameter of the folded filter element housing; one end of the metal sheet 3 is fixed on a support rod 2, and a ring is formed around the inside of several support rods 2, and the other end of the metal sheet 3 Either fixed or free rolling.

Wherein, the width range of the metal sheet 3 is between nine-tenths and one-half of the width of the filter material. The number of the support rods 2 is greater than four. According to the different diameters of the processed folded filter element, two or more support rods 2 are installed.

The invention also discloses a method for folding the filter material. The pleated filter material 4 is stuffed layer by layer from the opening of the ring ring. When the number of layers reaches the requirement, it can be sealed at the ring opening and then pressed tightly. Filter material; then put one end of the annular filter material on the shell, forcefully insert all the annular filter material into the shell from the other end, and finally weld the end cover of the shell to form a complete folded filter element.

Install the conical central fixed column 1 on a fixed frame, and fix the inner pipe of the folded filter core, and its diameter is 25mm. The inner diameter of the shell of the folded filter element is 60mm, so six support rods 2 are installed in a circle with a diameter of 60mm, the width of the filter element is 300mm, a section of 250mm metal sheet 3 is fixed on a support rod 2, and a circle is formed along the inner side of the support rod 2 Ring, another free extension. Insert the pleated filter material 4 from the opening of the ring ring layer by layer. During the insertion process, the filter material can be continuously compacted by tools. When the number of layers reaches the requirement, seal the end at the ring ring opening, and then Compress the filter material, put the shell on one end of the ring filter material, forcefully insert the ring filter material into the shell from the other end, and finally weld the end cover of the shell to form a complete folded filter element.

Claims (5)

1. A device for folding the auxiliary filter material into a filter element, characterized in that it includes a conical central fixing column (1) for fixing the inner tube of the folded filter element, and several A support rod (2), the diameter of the circle surrounded by the support rod (2) matches the inner diameter of the folded filter element housing; one end of the metal sheet (3) is fixed on a support rod (2), and along several The inner side of the support rod (2) forms a ring around the circumference, the other end of the metal sheet (3) is either fixed or free rolled, and an axial opening of a ring is formed between the two ports of the metal sheet (3) for The filter material is plugged and sealed. 2. A device for folding an auxiliary filter material into a filter element according to claim 1, characterized in that: the width of the metal sheet (3) is smaller than the width of the filter material, and the width of the metal sheet (3) is within the width of the filter material Between nine-tenths and one-half. 3. A device for folding auxiliary filter material into a filter element according to claim 1, characterized in that: the number of said support rods (2) is greater than four. 4. A device for folding the auxiliary filter material into a filter element according to claim 1, characterized in that: according to the difference in diameter of the processed folded filter element, more than two turns of the support rod (2) are installed. 5. The method of folding the filter material by using the device for folding the auxiliary filter material into a filter element according to any one of claims 1-4, characterized in that: the pleated filter material (4) is folded from the axial opening of the ring Insert it layer by layer. When the number of layers reaches the requirement, seal the opening of the ring ring, and then press the filter material tightly; then put one end of the ring filter material on the shell, and forcefully insert the ring filter material from the other end. Inside the shell, the shell end cap is finally welded to form a complete folded filter element.

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