| 摘要 |
PURPOSE: A roll traction device is provided to quantitatively supply a sheet by easily transferring the sheet roll and stably maintaining the position of the roll. CONSTITUTION: A roll traction device comprises a mainframe(20), a pair of rotating members(30), a rotary block(40), a first cylinder, and a drive motor(60). The rotating members coupled to the mainframe and have one or more bridges coupled to a roll. The rotary block is coupled to the bridges and can be moved back and forth, thereby being inserted to the roll when advanced. The first cylinder moves the rotary block back and forth. The drive motor rotates the rotating members.
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