Method for removing workpart blanks from sheet-metal strip
AssigneeHMS Products Co.
InventorsHugh M. Sofy, Dennis P. Farhat
Life of this patent
Estimating the term…
Abstract
A method of blanking workparts includes advancing the strip 26, 126 in a zig-zag fashion to a stationary blanking station 14, 114 disposed along axis A from which successive workparts are blanked from the strip 26, 126 and transferred along the axis A to successive forming stations 16, 18, 20, 22 by a transfer mechanism 28.
Claims15
A method of forming finished workparts from a continuous strip of sheet-metal in a blanking station (14, 114) and forming station (16) both arranged along an axis (A), comprising the steps of;
- feeding a continuous strip of sheet-metal (26, 126) to a blanking station (14, 114) disposed along the axis (A);
- blanking a workpart from the strip of sheet-metal (26, 126) at the blanking station (14, 114) along the axis (A);
- transferring the workpart by a transfer mechanism from the blanking station (14, 114) to at least a first successive forming station (16) along the axis (A);
- further forming the workpart at the first forming station (16);
- characterized by sequentially moving the strip (26, 126) both along the axis (A) and laterally of the axis (A) to blank successive workparts from the strip (26, 126) along the axis (A) at laterally staggered positions along the length of the strip (26, 126) to minimize material waste while simultaneously transferring previously blanked workparts from the blanking station (14, 114) to the first forming station (16) along the axis (A), the movement of the strip (26, 126) to the blanking station (14, 114) being different than the movement of the workparts from the blanking station (14, 114) to the forming station (16).
A method for forming finished workparts from a continuous strip of sheet-metal in a blanking station (14, 114) and forming station (16) both arranged along an axis (A), comprising the steps of;
- feeding a continuous strip of sheet metal (26, 126) having a predetermined width (W) to a blanking station (14, 114) disposed along the axis (A);
- blanking a workpart from the strip (26, 126) at the blanking station (14, 114) along the axis (A);
- transferring the workpart by a transfer mechanism from the blanking station (14, 114) to a successive forming station along the axis (A);
- forming the workpart at the forming station;
- characterized by moving the strip (26, 126) along the axis (A) a distance generally equal to W/2 (1+cos30) and shifting the strip (26, 126) laterally of the axis (A) in the plane of the strip (26, 126) a distance generally equal to Wcos30/(1+cos30) to blank successive workparts from the strip (26, 126) along the axis (A), the movement of the strip (26, 126) to the blanking station (14, 114) being different than the movement of the workparts from the blanking station (14, 114) to the forming station (16).
Dependencies are inferred from the claim text.