Bending and molding machine for metal sheet member

Abstract

The invention discloses a bending and molding machine for a metal sheet. A molding mould on the upper part of a supporting mould is driven to move up and down by a pressure beam; a workpiece on the supporting mould is compacted or loosen; the side of the supporting mould is provided with a rotary beam hinged with a stander by a fixed shaft; under the drive of a driving mechanism, the rotary beam rotates around the fixed shaft and can carry an autorotatable pressure roller on the rotary beam for rotation together; and the workpiece compacted between the supporting mould and the molding mould is allowed to roll forming along the surface of the molding mould. In the process of bending and molding the metal sheet, the surface of the pressure roller has rolling operation relative to the surface of the molding mould; and the surface of the workpiece can not be damaged. Through replacing the molding mould, different bending round angles can be machined and have good universality. Moreover, a rotary angle of the rotary beam is controllable; and a bending angle can be conveniently adjusted according to requirements.

Description

technical field [0001] The invention relates to a bending and forming plant for sheet metal parts. Background technique [0002] In the home appliance industry, such as refrigerators, washing machines, disinfection cabinets and other home appliance casings are generally bent from metal plates, and the forming process is usually bending or stretching, which is bent or stretched by a bending machine. In the existing bending forming machine, the metal plate is formed by placing the metal plate in the cavity mold (concave and convex die) of the forming machine, and adopting a press to pressurize the plate. Its molding efficiency is high. However, during the pressurization process, the surface of the plate will be worn due to relative sliding with the surface of the mold, which will affect the appearance of the plate. Simultaneously, the fillet of its bending and stretching is limited by the mould, and a set of molding dies can only process a single kind of fillet, and when it ...

AI Technical Summary

Problems solved by technology

However, during the pressing process, the surface of the plate will be worn due to relative sliding with the surface of the mold, which will affect the appearance of the plate

At the same time, the rounded corners of bending and stretching are limited by the mold. A set of forming dies can only process a single type of rounded corners. When it is necessary to change the forming rounded corners, the entire forming die must be replaced, which has poor versatility.

In addition, limited by the molding die, the bending and stretching angles of the workpiece are also fixed and cannot be adjusted according to needs

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