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    • 10. 发明授权
    • Controlled tension unwinding system
    • 控制张力退卷系统
    • US4580738A
    • 1986-04-08
    • US558097
    • 1983-12-05
    • Georges N. Scheer
    • Georges N. Scheer
    • B65H23/08B65H41/00B65H57/18B65H20/02B65H23/06B65H59/06
    • B65H41/00B65H23/085B65H2701/1864B65H2701/1918B65H2701/37B65H2801/93
    • A supply roll of thin liner material for carrying a strip of resilient plastic material is mounted for rotation with the axis of rotation in a horizontal position. An arm is mounted adjacent the supply roll for swinging movement toward and away from the axis of rotation of the roll. A peel-off roller is mounted on the distal end of the arm and is rotatable for rolling engagement with the supply roll. The liner material carrying the strip of resilient plastic material is directed around the peel-off roller and over an idler roller located at a position such that a force component acting on the arm resulting from the tension in the liner is in the direction of the supply roll for urging the peel-off roller against the supply roll. This provides a regular and minimal tension in the liner while the liner is pulled off the supply roll over the idler roller and to a driven liner take-up. The diameter of the peel-off roller is small as compared to the diameter of the supply roll causing the liner to undergo a sharp change in direction when leaving the supply roll which facilitates the peeling off of the liner. After passing around the idler roller the liner carrying the strip of resilient plastic material passes over a separating roller for separating the strip of resilient plastic material from the liner.
    • 用于承载弹性塑料材料条的薄内衬材料的供应卷被安装成与旋转轴线在水平位置旋转。 臂邻近供应辊安装,以便朝向和远离辊的旋转轴线摆动。 剥离辊安装在臂的远端上并且可旋转以与供应辊滚动接合。 承载弹性塑料材料带的衬里材料围绕剥离辊并且位于一个位置上的惰辊上,使得由衬套中的张力产生的作用在臂上的力分量在供给方向上 用于将剥离辊推压在供应辊上。 这样可以在衬套从惰辊上拉出供给辊并将其从驱动的衬套上取下来时提供规则和最小的衬里张力。 与供给辊的直径相比,剥离辊的直径小,导致当离开供给辊时衬垫经历急剧的方向改变,这有助于衬垫的剥离。 在穿过惰轮之后,承载弹性塑料材料条的衬垫通过分离辊,用于将弹性塑料材料带与衬套分离。