Apparatus for bending cutting blade to precisley form acute angle

Abstract

Disclosed is a cutting blade bending apparatus. The apparatus comprises a nozzle section for feeding a cutting blade into a bending area through a guide opening which is defined therein in a lengthwise direction of the cutting blade; a first bending member for bending the cutting blade fed into the bending area, in one direction; a second bending member for bending the cutting blade fed into the bending area, in the other direction; a first rotating body for firmly supporting the first bending member and guiding rotation of the second bending member; a second rotating body for firmly supporting the second bending member and guiding rotation of the first bending member, the second rotating body being rotated independent of the first rotating body; and a driving section for rotatably driving, at a time, one of the first and second rotating bodies.

Description

technical field [0001] The invention relates to a cutting blade bending device, and more specifically, the invention relates to a cutting blade bending device capable of precisely forming acute angles. Background technique [0002] Various cutting blade bending devices have been disclosed in this field. [0003] First refer to Figure 7a , which is a cross-sectional view of the cutting blade bending device described in International Patent Publication No. WO95 / 0026. In this cutting blade bending device, when the cutting blade 100 passes through the guide opening formed by the fixed mold 70, it moves forward under the rotation of the rollers 92, 93, and the cutting blade is mounted on the movable mold 71 which is rotatable around the fixed mold 70. function and bend. That is to say, when the movable mold 71 rotates, the end 711,711 of the movable mold will be folded to one side by the end 700,700 of the fixed mold 70. bend. However, such a conventional cutting blade bendi...

AI Technical Summary

Problems solved by technology

However, the problem with this common cutting blade bending device is that the acute angle at which the cutting blade 100 can be bent is limited to a certain value.

But this device still has a weak point, in order to bend the metal strip counterclockwise, the rotating body must rotate a large angle clockwise, so it is difficult to reserve a large space between the guide part and the metal strip bending part, so that this The control of the device becomes complicated

[0006] In addition, although this device is advanced compared to the aforementioned cutting blade bending device in terms of sharp-angle forming capability, since a single bending part sequentially bends the metal strip in two directions, considering the operation Compared with the cutting blade bending device mentioned above, it is not necessarily appropriate to say that this device is advanced

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