| 摘要 |
PURPOSE:To automatically adjust the width-wise thickness of a sheet-shaped matter by providing a heating body adapted to change the temperature of a polymer passing through a slit section and pushing body for changing the clearance width of the slit section to make both mechanisms operate selectively in accordance with a pattern varied in the thickness. CONSTITUTION:A discharge section 331 is heated up to the temperature correspoinding to the quantity of electricity fed to a heater 35 through a supply power line 354. The viscocity of a melt body passing through a slit section 32 is varied to change the amount of discharge. On the other hand, on the side of the discharge section 341, a heater bolt 36 rises in the temperature according to quantity of electricity fed through a power supply line 362 and presses the discharge section 341 with a thermal expension to change the clearance of the slit section 32. When a thickness gauge 5 detects a large undulation in the thickness pattern of a sheet-shaped matter and the level of the thickness spot is also large and hence, judgment is made by the level of the spot. When the spot is above a fixed level, a slit clearance adjusting mechanism depending on the difference in the thermal expansion is operated with a controller 7. When it is below the fixed level, a temperature adjusting mechanism is operated. |
