| 摘要 |
PURPOSE:To reduce the residual stress positively by journaling a pair of vertical supporting rollers and a pair of horizontal varnish rollers rotatably while securing the underside supporting roller made of resilient material such as rubber coaxially with the varnish roller and making the diameter of the underside supporting roller smaller than that of the varnish roller. CONSTITUTION:Underside supporting roller 1b is made of resilient material such as rubber and arranged between the varnish rollers 2 and secured to same rotary shaft 4. The slitted strip boards 6 are supported as it is between the supporting rollers 1a, 1b then while advancing furthermore, the cutting edge sections at the opposite sides of the strip board 6 are pressed against the pressing face 5 of the varnish roller 2 to be applied with varnishing from the burr 8 side to the opposite side 9. The strength of varnishing can be regulated through the positional relation between the strip board 6 and the pushing position against the inclined pressing face 5. Since the deformation stress applied downward at the opposite sides of the strip board 6 by means of the vertical cutters of slitter can be reduced, widening of the strip board 6, twisting of the edge section, longitudinal warp or distortion can be reduced. |
