| 摘要 |
PURPOSE:To always allow the prescribed position of outer periphery of the cylindrical vessel to position to the normal position even if the diameter of cylindrical vessel is changed by selecting one rotating amount either of the positioning roller or the pressing roller corresponding to the dameter size of the cylindrical vessel. CONSTITUTION:The positioning mechanism has the positioning roller 21 and the pressing roller 23, and on the case of utilizing the cylindrical vessel 11 of a small diameter, at first, the cylindrical vessel 10 is put between the pressing roller 23 and the positioning roller 21, its cylindrical vessel 10 is pressed with the pressing roller 23 to the positioning roller 21. Therefore, the cylindrical vessel 10 can be positioned against the positioning roller 21 in tangential state. In this case, because there is the driving part to select one rotating amount either of the positioning roller 21 or the pressing roller 23 in correspondence with the diameter size of cylindrical vessel 10, the cylindrical vessel 10 can be rotated by the prescribed angle by rotating the either one of the rollers 21, 23 by required amt. of rotation with the driving device. |
