Preparation method of filter element

Abstract

The invention discloses a preparation method of a filter element. The preparation method comprises the following steps: firstly, installing a paper core between an upper end cover and a lower end cover; secondly, installing a valve base into a first through hole; and thirdly, firstly, coating a glass fiber wire with a melted thermosetting adhesive by using a hot melt adhesive coating device, and then winding the glass fiber wire to the outer wall of the paper core by a wire winding machine. The upper end cover and the valve base are respectively machined; firstly, the paper core is installed between the upper end cover and the lower end cover; then the valve base is installed on the upper end cover, and avoids the heating process of the upper end cover, thus the valve base cannot be deformed, the assembling quality of the valve base and the valve core is guaranteed, so that the filtering effect of the filter element is ensured; the glass fiber wire winds the surface of the paper core; the technology is simple, the glass fiber wire is thin, so that the actual filtering area of filter paper can not be influenced, and further the filtering efficiency and the filtering quality of the filter element are enhanced; the filter element can not fall off or be dissolved into engine oil to pollute the engine oil when soaked into the engine oil with relatively high temperature for a long time.

Description

technical field [0001] The invention relates to a manufacturing method of a filter element. Background technique [0002] Most of the traditional filter element structure is: the valve seat and the end cover are integrated, and the center tube is a hollow cylinder. The advantage is that the injection mold structure is relatively simple, and the production of plastic parts is relatively easy, but the main disadvantage of this structure is: In the process of connecting with the filter paper, the end cover needs to be heated and baked. Since the boss of the valve seat is located on the side where the end cover is connected to the filter paper, the valve seat is easily deformed during heating and baking, which affects the assembly of the valve core and the valve seat. This will affect the filtering effect of the filter element. Contents of the invention [0003] The problem to be solved by the present invention is to provide a manufacturing method of the filter element, which...

AI Technical Summary

Problems solved by technology

[0002] Most of the traditional filter element structure is: the valve seat and the end cover are integrated, and the center tube is a hollow cylinder. The advantage is that the injection mold structure is relatively simple, and the production of plastic parts is relatively easy, but the main disadvantage of this structure is: In the process of connecting with the filter paper, the end cover needs to be heated and baked. Since the boss of the valve seat is located on the side where the end cover is connected to the filter paper, the valve seat is easily deformed during heating and baking, which affects the assembly of the valve core and the valve seat. Thus affecting the filtering effect of the filter element

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