Method and device for manufacturing filter sieve

Abstract

The invention relates to a method and a device for manufacturing a filter sieve. The filter sieve comprises a plurality of ribs, and metal wires fixedly arranged on the outer walls of the plurality of ribs. The method comprises the following steps of: fixedly distributing the plurality of ribs on the same cylindrical surface and fixing to form a rib whole; rotating the rib whole around the axis line of the rib whole, and moving the rib whole along the extending direction of the axis line of the rib whole; feeding the metal wires into the rib whole and welding; spirally winding the metal wires on the outer wall of the rib whole and reserving a fixed gap; welding the metal wires on the rib whole while winding to form a barrel-shaped filter sieve; and cutting the barrel-shaped filter sieve into the filter sieve with the required size. The filter sieve is formed by winding and welding the metal wires on the plurality of ribs, the strength of the sieve can be changed by increasing the number or size of the ribs, and a support framework is not needed; and the distance between two adjacent circles of metal wires can be effectively controlled to adjust the size and specification of the filter sieve, the steps are simple, manufacturing efficiency is high, and the manufacturing cost of the filter sieve is greatly reduced.

Description

technical field [0001] The invention relates to a manufacturing method and device of a filter sieve, which is applied to filter equipment for water treatment in oil fields, chemical industry, water treatment, food and other industries. Background technique [0002] Filter screens are used in fine filtration and fine filtration projects in water treatment in electric power oil wells, natural gas wells, water wells, chemical industry, mining, papermaking, environmental protection, water treatment, metallurgy, petrochemical, food, sand control and other industries. [0003] At present, there are generally two methods of precision filter sieves on the market: [0004] The first method: use a certain thickness of punched steel plate or perforated pipe as the skeleton, and use different meshes of wire mesh to cover the skeleton to achieve the filtering effect according to the requirements of filtration accuracy, such as figure 1 shown. The disadvantage of this method is that the...

AI Technical Summary

Problems solved by technology

The filter screen processed by this method has high strength and high permeability, but the processing is time-consuming and labor-intensive; in addition, the V-shaped strips are not uniformly stamped and formed, and are easily deformed after being formed in series, and the filter gaps produced by grinding are not uniform, which is not enough. to the consistent requirement of gap accuracy

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