| 摘要 |
A structure for preventing interference between flange and cam piercing press is provided to prevent a piercing unit from contacting a steel plate of an ejector by installing a hinged return spring on one end of the steel plate disposed on a lower part of an ejector. A structure for preventing interference between flange and cam piercing press has an ejector(610). The ejector includes a steel plate(611) disposed on a lower part of the ejector. A return spring(612) is hinged on one end of the steel plate and rotates the steel plate. A reverse rotation preventing protrusion(613) is disposed on the other end of the steel plate. As the implantation of a piercing unit(800) is not deep enough, the piercing unit comes into contact with the steel plate. However, the return spring rotates the steel plate and prevents the piercing unit from contacting the steel plate. |
