sheet metal cutting device

Abstract

The present invention relates to a device for cutting a metal plate, comprising: a support part on which a metal plate is placed; first and second transfer frame parts positioned above and under the support part, respectively; a first cutting part which moves along the first transfer frame part and which includes a first saw blade part for cutting at least a part of the metal plate including the top of the metal plate by rotating; and a second cutting part which moves along the second transfer frame part and which includes a second saw blade part for cutting at least a part of the metal plate including the bottom of the metal plate by rotating. The present invention provides a device for cutting a metal plate, capable of cutting a metal plate without generating burrs on the cutting plane and without requiring secondary processing.

Description

technical field [0001] The invention relates to a sheet metal cutting device. Background technique [0002] Gas torches have traditionally been used when cutting sheet metal, especially thick sheets. At this time, in the case of cutting the metal plate with a gas torch, the metal plate heated by the gas torch will undergo an oxidation reaction with oxygen, and under the action of the heat of the oxidation reaction, a molten metal portion will be formed at the heated part, and by The molten metal part flows downward due to gravity, and a gap is formed between the metal plates, thereby cutting the metal plates. [0003] In this case, the molten metal flowing downward condenses on the lower portion of the cut surface and the lower surface and edge portion of the metal plate to form a site called “cut lump”. Such a phenomenon occurs not only in gas torch cutting, but also in plasma cutting, laser cutting, or Brown gas (Brown Gas) cutting, which is a cutting that utilizes a gap...

AI Technical Summary

Problems solved by technology

[0004] However, when "cutting lumps" exist in the cut metal plate, it is determined that the shape of the metal plate is not ideal. Not only that, when the metal plate is later welded or obtained for special purposes such as ships, steel pipes or structures During processing, there is a hidden danger of poor shape and structure of the final product

In order to solve such a problem, it may be considered to perform a secondary processing process for removing the cut surface of the metal plate formed with "cutting lumps", but this not only consumes time and cost, but also has the disadvantage that even through such secondary processing It is also difficult to completely remove the problem of "cutting and agglomeration" in the process

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