公开(公告)号：US3747920A

公开(公告)日：1973-07-24

申请号：US3747920D

申请日：1971-04-14

Applicant: WARNER SWASEY CO

Inventor： LINKUS J

IPC: B21D43/10 ,  B21D43/22 ,  B65H29/10

CPC classification number: B65H29/10 ,  B21D43/10 ,  B21D43/22

Abstract: An improved apparatus for operating on sheets of material includes an unloader assembly which engages a sheet of material and removes it from a punch press. Interconnected controls for both the punch press and unloader automatically initiate an unloading cycle upon completion of a punching cycle. Upon initiation of an unloading cycle, a clamp mounted on an unloader trolley is moved into gripping engagement with a leading end portion of the sheet. The trolley is then moved away from the punch press along a path extending over the pile on which the sheet is to be deposited. When the trailing end portion of the sheet has cleared the punch press, the trolley is stopped and the clamp is opened to release the sheet. To prevent interference between the pile of sheets and the trolley, the pile is disposed on a support table which is lowered whenever a detector assembly on the trolley detects that the pile extends above a predetermined height.

Abstract translation: 用于在材料片上操作的改进的装置包括与一张材料接合并将其从冲压机移除的卸载器组件。 冲压机和卸料机的互连控制器在冲压循环完成后自动启动卸载循环。 在开始卸载循环时，安装在卸载机台车上的夹具被移动成与片材的前端部夹紧接合。 然后将小车沿着沿着要沉积纸张的桩上的路径移动离开冲压机。 当片材的后端部分已经清除了冲压机时，手推车被停止并且夹子被打开以释放片材。 为了防止纸张和手推车之间的干扰，桩被布置在支撑台上，当支架上的检测器组件检测到纸张延伸超过预定高度时，该支撑台下降。

公开(公告)号：US3733944A

公开(公告)日：1973-05-22

申请号：US3733944D

申请日：1971-10-12

Applicant: WARNER SWASEY CO

Inventor： DIETRICK E ,  LINKUS J

IPC: B26F1/02 ,  B21D28/36 ,  B21D45/00 ,  B21D45/08 ,  B26F1/04 ,  B26D5/12 ,  B26D7/02 ,  B26D7/18

CPC classification number: B21D45/006 ,  Y10T83/088 ,  Y10T83/175 ,  Y10T83/2135 ,  Y10T83/2137 ,  Y10T83/2166

Abstract: An improved punch press includes a selectively operable stripper unit which presses a workpiece against a lower turret as a tool is retracted away from the workpiece by a ram. A transfer device transmits actuating forces to the stripper unit during an operating cycle of the punch press. To enable the stripper unit to be selectively operated, the transfer device is operable between an active condition in which it is effective to transmit actuating forces to the stripper unit and an inactive condition in which the transfer device is ineffective to transmit actuating forces. A control apparatus initiates a punching operation only after the transfer device has been operated to either the active or inactive condition.