| 摘要 |
Apparatus for bending stock to an acute angle. A hydraulic cylinder with a ram extendable under hydraulic pressure provides the bending power. The ram automatically retracts from an extended position when hydraulic pressure is removed. One end of an apparatus supporting arm consists of a slide bar. The slide bar end of the arm is secured to a support with the opposite end pivotably mounting a forming die and a lever. The lever pivotably mounts a forming roller. The lever carries the forming roller around the die and bend stock secured to the die around the die. A slide is slideably attached to the slide bar. The cylinder and ram are pivotably attached extending between the slide and the lever. With this arrangement providing hydraulic pressure to extend the ram will rotate the lever and forming roller around the die and bend secured stock around the die, then removing pressure will retract the ram and move the slide with the attached cylinder and ram towards the die where the slide is automatically locked in place. This permits making an acute angle bend by successive bends with the cylinder and ram at two different locations with respect to the die. |
