| 摘要 |
The present invention relates to a position adjustable roll shaft holder comprising: a holder main body which is fixed to a base plate for fixing a shaft of a roll for transfer guiding a printing object; and a position adjusting part for relatively transferring the holder main body about the base plate. The position adjusting part comprises: a base connecting part connected to the base plate; a holder connecting part connected to the holder main body; a first screw thread part formed on a side where the base connecting part is in contact with the holder connecting part to guide relative motion of the base connecting part and the holder connecting part; and a second screw thread part formed on a side where the holder connecting part is in contact with the holder main body to guide relative motion of the holder connecting part and the holder main body. The first screw thread part and the second screw thread part are formed to have different pitches. According to the present invention, the position of the roll is adjusted by using difference in pitch of multiple screw threads. Therefore, the position of the roll can be adjusted in a more accurate level than a minimum screw thread pitch which is satisfied with screw hardness required to perform smoothly a function. Moreover, a structure can be simplified and solid. |
