Bending and angle wrapping die and bending and angle wrapping method

Abstract

The invention discloses a bending and angle wrapping die and a bending and angle wrapping method. The bending and angle wrapping die comprises a first die body and a second die body which are oppositely arranged, an angle wrapping knife is installed on the side, facing the second die body, of the first die body, and the angle wrapping knife is rotationally connected with the first die body through a first fixing shaft; the bending and angle wrapping method comprises the steps that the dies start to run, and the first die and the second die are reset; the first die moves downwards, a first stripping plate on the first die presses the plate, the first die continues to move downwards, and a bending knife on the first die starts to bend the plate; and after the bending procedure is completed, the first die continues to move downwards, a limiting shaft on the first stripping plate enters a guide groove in the angle wrapping knife, the angle wrapping knife rotates along a track set by the first fixing shaft and the limiting shaft, and the angle wrapping procedure is completed. Through the arrangement, a rotary angle wrapping method is adopted, so that the contact area between the angle wrapping knife and the plate is reduced, the friction between the angle wrapping knife and the plate is reduced, and the problems of film rupture and paint peeling of the plate are solved.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a corner-bending mold and a corner-bending method. Background technique [0002] At present, the door shells of some high-end products all use hidden end covers, resulting in a more complicated structure of the product door shells than ordinary products, adding flanging at the end and other parts; while the current product door shells are generally produced through blanking, flanging, The four processes of U-shaped bending (bending) and corner wrapping. The corner wrapping knife forming method of the current bending mold is to use the guide rail to slide in one direction. The corner wrapping block needs to be relatively large and has a complex structure and poor stability. The large area increases the area in contact with the plate. In order to achieve the purpose of synchronous wrapping, no matter what the bending height is, the height of the wrapping on both sides is the same, w...

AI Technical Summary

Problems solved by technology

[0002] At present, the door shells of some high-end products all use hidden end covers, resulting in a more complicated structure of the product door shells than ordinary products, adding flanging at the end and other parts; while the current product door shells are generally produced through blanking, flanging, The four processes of U-shaped bending (bending) and corner wrapping. The corner wrapping knife forming method of the current bending mold is to use the guide rail to slide in one direction. The corner wrapping block needs to be relatively large and has a complex structure and poor stability. The large area increases the area in contact with the plate. In order to achieve the purpose of synchronous wrapping, no matter what the bending height is, the height of the wrapping on both sides is the same, which will cause the small part of the wrapping edge to contact the sheet too much, resulting in Paint peeling and film breakage on corners caused by long friction time

[0003] The Chinese invention patent with the application number of 201810627772.6 discloses a refrigerator door shell bending and wrapping mold. The typical structure of the wrapping knife is a 45° wrapping slider structure. Difficult, long-term impact force will cause problems such as fracture, which will cause safety hazards to the operation of continuous production manipulators. At the same time, there will be local skin cracks at the fillet forming positions of VCM\PCM\3D printing plates and other plates

[0004] The purpose of the present invention is to solve the puzzlement of the above mold problems and product quality problems exposed in the long-term production process

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