Cutting method and cutting device for coiled materials or plates

Abstract

The invention discloses a cutting method, a cutting knife or a cutting device, relates to the field of cutting technologies and aims at prolonging the service life of the knife and reducing the production cost. The cutting method for the coiled materials or the plates comprises the following steps: enabling a first cutting knife and a second cutting knife, which are matched for use, to be meshed mutually so as to cut the coiled material or the plate positioned between the first cutting knife and the second cutting knife; and enabling at least one of the first cutting knife and the second cutting knife to be in point contact with the coiled material or the plate when using the first cutting knife and the second cutting knife to cut during the cutting process. The invention can be used for cutting the coiled materials or the plates.

Description

technical field [0001] The invention relates to the technical field of cutting, in particular to a method and device for cutting a coil or plate. Background technique [0002] At present, most of the materials used in the field of industrial technology are plate-shaped materials with a relatively large area or roll-shaped materials with a relatively large length, such as sheet metal materials used for making automobile shells, aluminum foil materials used for making transformers, Prepreg or copper foil materials used in the production of printed circuit boards, etc., these materials need to be properly cut before use, and cut into basic materials that meet the size specifications before use. [0003] Take the cutting of prepreg or copper foil materials used in the production of printed circuit boards as an example. During the production process, the rolled prepreg or copper foil needs to be cut into multiple small pieces of different sizes for subsequent production. , when ...

AI Technical Summary

Problems solved by technology

[0004] The inventors have found that, in the case of online contact, each part of the cutting blades used in conjunction with each other is in contact with the prepreg or copper foil to be cut at the same time, so a larger intermolecular force needs to be overcome during cutting. function, so that the two cutting knives used in conjunction with each other are subjected to greater friction during the cutting process, and the wear of the cutting knife edge is more serious, which reduces the service life of the knife, increases the number of times the knife is regrinded, and increases cost of production

And often there will be cut-off phenomenon

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