| 摘要 |
A simultaneously channel forming and punching machine, which forms a channel from a flat metal sheet and punches the side walls of the formed channel, comprising: a lower member, including a support frame and a die member mounted on the support frame having a sheet receiving surface and two side walls, each having perforations at a desired height; an upper member, mounted on a lowering and lifting mechanism, actuating on a lower member; a female member, retained by a support frame, having an upper wall and two depending side walls, each having perforations at a height coinciding with the perforations of the die member, and forming a channel housing receiving the die member when the upper member is lowered to form a channel; a retaining plate, resiliently retained into the channel forming housing of the female member for retaining a metal sheet to be bent; and punching elements coupled at the ends of the female member, for punching the side walls of a formed channel, passing through the perforations of the female member and the die member.
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