| 摘要 |
In a machine for automatically bending a material into the outside skin of a channel letter, a desired configuration of the channel letter is input into a control computer. The computer controls the feed of the material along a material feed path of the machine. A notching station (30) notches the edge of the material where necessary for purposes of forming flanges in the material and bending the material. A subsequent flange forming station (40) forms the flanges on the edge of the material, when desired. A bending assembly (60) bends the strip of material into the desired form. The material is cut at a cutting station (50) immediately preceding the bending assembly (60).
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