| 摘要 |
PURPOSE:To eliminate the unevenness of the sprocket rotation angle and prevent electronic part pickup errors by providing a pin which is freely inserted into/ extracted from pin holes formed on the side of the sprocket. CONSTITUTION:When a depression lever 11 is depressed by a depressor 13, both drive levers 6 and 7 are swung, which rotates a sprocket 5 in the direction of the solid line arrow by a pitch, and feeds a tape 4 mounted with electronic parts by a pitch. When a driver 29 is moved up by the swing of the drive lever 7, a pin 25 is extracted from a pin hole 20; when the driver 29 is moved down, the pin 25 is inserted into a pin hole 20, stopping the rotation of the sprocket 5. As mentioned above, inserting/extracting the pin 25 into/from pin holes 20 in interlock with the pitch rotation of the sprocket 5 makes constant the angle of the sprocket pitch rotation. This feeds a tape 4 by a constant pitch and stops a chip P at a pickup position Q with accuracy. |
