Abstract An improved method of operating an apparatus to cut sheet material workpieces eliminates the inadvertent dropping of a relatively small scrap or remainder portion of a workpiece into a clearance space between a pair of cutter blades and a discharge conveyor. Thus, a relatively large sheet metal workpiece is gripped by a holder which moves the workpiece relative to a pair of blades. The blades are moved relative to each other to cut the workpiece to form a product having a desired configuration. The product is dropped onto a discharge conveyor. In order to prevent a relatively small scrap piece remaining in the holder from being dropped into a space between the discharge conveyor and the blades, the holder is extended through the space between the blades to a location over the discharge conveyor and is opened to drop the scrap or remainder portion of the workpiece onto the discharge conveyor.
A method of operating an apparatus to cut scrap pieces off a sheet material workpiece to form a sheet material article of a desired configuration, said method comprising the steps of gripping the workpiece with a holder, moving the holder to position the workpiece between a pair of blades, effecting relative movement between the blades to cut a first scrap piece off of the workpiece, dropping the first scrap piece onto a conveyor which is separated from the blades by a clearance space and is disposed on a side of the blades opposite from the holder, subsequently moving the holder to change the position of the workpiece relative to the blades, cutting the article off of the workpiece to leave a second scrap piece in the holder, depositing the article on the cnveyor and moving the article away from the holder with the conveyor while gripping the second piece of scrap with the holder, thereafter extending the holder between the blades and across the clearance space to a location adjacent the conveyor, and dropping the second scrap piece onto the conveyor by actuating the holder to release the second scrap piece while the holder extends between the blades and across the clearance space.
Claim 2
Independent Claim
203 words
A method of operating an apparatus to cut scrap pieces off a sheet material workpiece to form a sheet material article of a desired configuration, said method comprising the steps of gripping the workpiece with a holder, moving the holder to position the workpiece between a pair of blades, effecting relative movement between the blades to cut a first scrap piece off of the workpiece, dropping the first scrap piece onto a conveyor which is separated from the blades by a clearance space and is disposed on a side of the blades opposite from the holder, subsequently moving the holder to change the position of the workpiece relative to the blades, cutting the article off of the workpiece to leave a second scrap piece in the holder, depositing the article on the cnveyor and moving the article away from the holder with the conveyor while gripping the second piece of scrap with the holder, thereafter extending the holder between the blades and across the clearance space to a location adjacent the conveyor, and dropping the second scrap piece onto the conveyor by actuating the holder to release the second scrap piece while the holder extends between the blades and across the clearance space.