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    • 3. 发明申请
    • PROCESS FOR COOLING FLAT PLASTIC PRODUCTS
    • 冷却平板塑料制品的工艺
    • US20100109180A1
    • 2010-05-06
    • US12612989
    • 2009-11-05
    • Klaus BeckerMichael Käthler
    • Klaus BeckerMichael Käthler
    • B29C53/18B29C53/84
    • B29C47/886B29C47/0021B29C47/8845B29C47/906B29C47/92B29C2947/92209B29C2947/92247B29C2947/92428B29C2947/92571B29C2947/9259B29C2947/92647B29C2947/92704B29C2947/92923
    • Method for cooling flat plastic products, in which plasticized plastic compound is fed to a calender via a slot nozzle by means of an extruder and is rolled and calibrated to the desired shape in this calender between at least two smoothing rolls, after which the film or sheet produced in this way is fed to a chill section comprising a plurality of adjustable rolls and passes through this section until it is sufficiently cool and dimensionally stable, at least both the gap width between the rolls and the speed of the rolls being controllable by open- and/or closed-loop control.According to the invention, the degree of wrap of the flat plastic product around the respective roll is varied by adjusting the rolls in the chill section into a mutually offset arrangement, hence increasing or minimizing the cooling capacity, the gap width, once specified, being held constant during each adjustment operation by means of an appropriate control system.
    • 冷却扁平塑料制品的方法,其中塑化塑料化合物通过挤出机通过狭槽喷嘴供给到压延机,并在至少两个平滑辊之间在该压延机中滚压和校准至所需形状,然后将薄膜或 以这种方式制造的片材被供给到包括多个可调节辊并且穿过该部分的冷却部分,直到其足够冷却并且尺寸稳定,至少辊之间的间隙宽度和辊的速度可以通过打开 - 和/或闭环控制。 根据本发明,通过将冷却部分中的辊调节为相互偏移的布置来改变扁平塑料制品围绕各个辊的卷绕程度,因此增加或最小化一旦指定的冷却能力,间隙宽度为 在每次调整操作期间通过适当的控制系统保持恒定。