Refrigerator door shell end bending die

Abstract

The invention discloses a refrigerator door shell end bending die. An upper die plate is provided with a middle bending die block, and a middle bending die block is positioned in front of a middle pressure plate and tangent to the edge of the front end of the middle pressure plate; both sides of the upper die plate are provided with a lewisson mechanism; each lewisson mechanism comprises an upper sliding tapered wedge and two side bending sliding blocks which are connected through an elastic connecting mechanism fixed on the upping sliding tapered wedge; a lower bending die comprises sliding blocks, which move horizontally on two sides, and a middle sliding block which moves up and down; and the sliding blocks, which move horizontally on two sides, are composed of two lower die spliced blocks and two lower die side sliding blocks which are fixed with the lower die spliced blocks. The refrigerator door shell end bending die can be used for bending the end to the root on the sheet composed of a plurality of cambered surfaces, planes and the like, and has the advantages of convenient operation and high production efficiency, so that the product can achieve good surface quality and satisfy the customer requirement.

Description

technical field [0001] The invention relates to a bending die for a refrigerator door shell end. [0002] Background technique [0003] The refrigerator door shell adopts the upper and lower end flanges, and the upper and lower end covers are inserted into the door shell flanges from the front direction of the door shell. There is no need to protrude a plastic side to cover the door shell, and the overall appearance is beautiful. The refrigerator door shell is an important part of the refrigerator, and its end bending process directly affects the appearance and performance of the refrigerator. The traditional bending die is composed of an upper die and a lower die. In order to ensure the bending effect during bending, the traditional bending process is to cut a process gap (Germany) at the bending corner of the door shell, and cut to the root of the bending corner. There is a slight deviation in positioning during bending, and the incision is higher than the entire bendin...

AI Technical Summary

Problems solved by technology

The traditional bending die is composed of an upper die and a lower die. In order to ensure the bending effect during bending, the traditional bending process is to cut a process gap (Germany) at the bending corner of the door shell, and cut to the root of the bending corner. There is a slight deviation in positioning during bending, and the incision is higher than the entire bending surface after bending, and sometimes the butt joint can be seen, resulting in scrapped appearance and high scrap rate. In addition to the scheme of cutting process gaps, there is also the scheme of folding the end on the plane first, and then folding the large surface, but this scheme has defects such as surface wrinkling and surface coating damage due to the accumulation of bending materials at the corner R. , the smaller the R angle, the more serious the defect, and the door shell cannot get a higher surface quality.

At the same time, since the surface of the refrigerator door shell is bent, there are also bending ends composed of large arc surfaces, small arc surfaces, inclined surfaces, vertical surfaces, etc. Insufficient processing of the bent end, and the simultaneous bending of the bent end composed of multiple surfaces such as a large arc surface, a small arc surface, an inclined surface, and a vertical surface cannot be realized. Therefore, each section after bending the end It is difficult to guarantee the consistency, the operation process is more complicated, and the production efficiency is relatively low

Images