Method for carrying out continuous cold roll forming on asymmetric plates of bottom side beams for container

Abstract

The invention discloses a method for carrying out continuous cold roll forming on asymmetric plates of bottom side beams for a container. The method comprises the following concrete processing steps: preparing a cold roll forming unit, and sequentially loading first to sixteenth rollers into the cold roll forming unit; and carrying out cold roll forming on the plates: carrying out continuous bending on the right sides of the plates by the first to sixth rollers, flattening the left sides of the plates, shaping the right sides of the plates by the right sides of the seventh to twelfth rollers, carrying out cold bending on the left sides of the plates by left rollers, carrying out continuous bending on the left and right sides of the plates by the thirteenth roller, shaping the outermost edges of the left and right sides of the plates by the fourteenth to fifteenth profile steel, and correcting the shape of each edge of the plates by the sixteenth roller, thereby achieving the specified shape and size. According the cold roll forming method disclosed by the invention, by firstly carrying out cold bending treatment on the right sides and then carrying out cold bending treatment on the left sides, materials can freely extend from the right sides to the left sides without being restrained, thereby preventing the materials from stacking or wrinkling.

Description

technical field [0001] The invention relates to a processing method, in particular to a method for continuous cold-bending forming of an asymmetric plate of a container bottom side beam. Background technique [0002] like figure 1 As shown, the cross-sectional shape of the bottom side beam of the container is L-shaped with single bend on one side and Z-shaped with double bends on the other side. This asymmetric structure has certain difficulties in processing. At present, the bottom side beam of the container bottom in the container manufacturing industry The asymmetrical plate is formed by cold stamping. This method can only bend one forming angle at a time, and requires multiple operators, which has the disadvantages of slow efficiency, high energy consumption, and high cost. In order to To change the status quo of slow production efficiency, high energy consumption, and high personnel costs, some companies also use cold-bending forming technology, relying on cold-bending...

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Problems solved by technology

[0002] like figure 1 As shown, the cross-sectional shape of the bottom side beam of the container is L-shaped with single bend on one side and Z-shaped with double bends on the other side. This asymmetric structure has certain difficulties in processing. At present, the bottom side beam of the container bottom in the container manufacturing industry The asymmetrical plate is formed by cold stamping. This method can only bend one forming angle at a time, and requires multiple operators, which has the disadvantages of slow efficiency, high energy consumption, and high cost. In order to To change the status quo of slow production efficiency, high energy consumption, and high personnel costs, some companies also use cold-bending forming technology, relying on cold-bending forming units to send metal plates such as coils and strips into multi-pass forming rolls for continuous processing. Intermittent transverse bending to make a profile with a specific cross-section. Currently, the most common method of cold-formation is to bend both sides of the plate simultaneously, which causes the middle part to be pulled and piled up due to the lateral deformation being limited by the outer material. In the process of processing, there are accumulations, wrinkles, and the disadvantages of thinning of the sheet at the fillet with a radius of R

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