| 摘要 |
PURPOSE:To position a bobbin precisely by holding the bobbin by means of supporting units which are projected facing with each other by cylinder units whose pushing force is different and by moving the bobbin in one direction by the cylinder whose pushing force is greater. CONSTITUTION:After a bobbin 5 is brought into a space between supporting parts 11 of a winding unit and raised up to the same height with the supporting parts 11, air with the same pressure is sent into each projected-side air port 14 of cylinder units 10A and 10B so that the supporting parts 11 jut out to hold the bobbin 5 through their individual engaging parts 11b and 5b. In this case, since the pushing force of the cylinder unit 10A is great than that of the cylinder unit 10B due to the difference in individual cylinder diameters d1 and d2, a piston 13A juts out while pushing a piston 13B back, and moves the bobbin 5 in the axial direction until a positioning piece 16 comes into contact with an end surface of cylinder proper 12A. Accordingly, by adjusting the setting position of the positioning piece 16, the bobbin 5 can be positioned precisely. |
