| 摘要 |
PURPOSE: To provide a fabric turner for selectively inverting flexible and limp planar workpieces such as fabric by providing an input device, a non-inversion passage, an inversion passage provided with an inversion slot, a primary workpiece propeller and a device for stopping the workpiece inside the slot and first and second controllers. CONSTITUTION: A conveyor belt or a propeller brush is placed on an input tray 26 and pulls the fabric 48 toward the primary propeller 20. A control circuit 36 receives signals from a fabric sensor 32 by light. Then, the fabric 48 is connected by the primary propeller 20 and drawn into the slot 30. The control circuit 36 controls an air cylinder 46 and drives a piston 44. Then, for a secondary propeller 38, the fabric 48 is pressed between the opposing wall of the slot 30 and the secondary propeller 38 and downward movement is stopped. At the time, the secondary propeller 38 is not required to be rotated at the time of being in contact with the fabric. Then, the fabric 48 is continuously pressed by the primary propeller 20 and the fabric 48 is placed on an exit tray 28 for sensing it by the light 51 and a photoelectric detector 53. |
