| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a material supply device having an excellent property to absorb looseness of sheet materials. <P>SOLUTION: A circumferential difference absorption mechanism 30 for absorbing circumferential differences of a plurality of sheet materials 4a, 4b, 4c of a lamination roll 5 consists of attaching bases 35, 35 suspended at both axial end sides of a winding core 6 via bearings, rotation arms 31, 31, 33, 33 respectively pivoted by both the attaching bases 35, 35, tension adding rolls 32, 34, with their both ends pivoted at a rotation free end side of a pair of rotation arms, suspended between the pair of rotation arms in a manner substantially parallel with the winding core and energizing means 42, 42 for pressing the tension adding rolls 32, 34 in a direction for absorbing the looseness of the sheet materials 4b, 4c. Rotation force variation reducing means 51, 53 are provided to reduce change of rotation force of the rotation arms 32, 34 by pressing back the rotation arms 32, 34 with a significant force Fc×sinαas a rotation force mg×sinθof the rotation arms 32, 34 force caused by their own weight is increased. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
