| 摘要 |
A device is described for aligning coiled sheet material in the die of a power press during stamping operations. It includes a coiled sheet material feeder having a pair of powered gripping rollers for gripping and advancing the sheet material, these rollers being mounted on a head portion which is supported on a base with the feeder head being arranged to pivot on the base about a vertical axis and to move on the base laterally to the direction of travel of the sheet material while being fixed against movement parallel to the direction of travel of the sheet material. Hydraulic cylinders are provided for separately laterally moving forward and rearward portions of the feeder head and these are operatively connected to detector means, such as feeler actuated solenoid valves positioned along one side of the travel path of the sheet material between the feeder head and power press. These detector means sense the edge of the sheet material passing through the power press and cause the feeder head to laterally adjust and/or pivot to maintain the sheet material in proper alignment within the press. |
