| 摘要 |
An apparatus for correcting a spring back is provided to simply correct the spring back fabricated through a press molding process without modifying or reconstructing a mold. An apparatus for correcting a spring back comprises an upper mold driver(1) installed at an upper portion of the apparatus. Two roller brackets(3,5) are mounted at both sides of a lower portion of the upper mold driver through hinge brackets(7,9) and two steel rollers(11) are rotated at lower portions of the two roller brackets. A tension spring(15) is interposed between upper portions of the two roller brackets. A guide plate(17) is disposed between lower portions of the two steel rollers. Rectangular guide holes(H) are formed on both sides of the guide plate. A fluid container(19) is installed at an upper center portion of the guide plate. The fluid container is compressed and expanded by hydraulic pressure supplied from a hydraulic controller(23) connected to the fluid container through a hydraulic hose(21).
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