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    • 3. 发明授权
    • Method and device for conveying planar ribbon of crimped fiber using air jets
    • 使用空气喷射器输送卷曲纤维的平面带的方法和装置
    • US06402436B1
    • 2002-06-11
    • US09559631
    • 2000-04-28
    • David Herbert Murphy
    • David Herbert Murphy
    • B65G5316
    • B65H23/24B65H2701/177D01D10/0436
    • A method and device for conveying a ribbon of crimped material includes an air mover, a plenum connected to the air mover to receive air from the air mover, a series of directional slits and side walls. The directional slits air in fluid communication with the plenum so that air from the plenum exits through the directional slits in a predetermined direction. The directional slits are arranged in a generally planar configuration to form a conveyance track. The sides walls are provided on either side of the conveyance track to extend above the conveyance track. The crimped material may be a planar band of crimped fiber, such as a planar band of crimped acetate fiber. The crimps may extend in an up-and-down direction or in a back-and-forth direction. The plenum may be formed of a pair of elongated support pieces with cutout portions in the elongated support pieces. In this case, the directional slits are formed by air knives fitting into the cutout portions of the elongated support pieces, and the elongated support pieces define the side walls. With the cutout portions, the position of the air knives within the cutout portions can be adjusted to vary the spacing between the air knives. Alternatively, the plenum may be formed from a tubular material having a hollow interior. In this case, the directional slits are cuts formed partially through the tubular material such that the cuts penetrate into the hollow interior of the tubular material.
    • 用于输送卷曲材料带的方法和装置包括一个空气推动器,连接到该空气推动器以从该移动器接收空气的一个充气室,一系列定向狭缝和侧壁。 定向狭缝空气与气室流体连通,使得来自气室的空气沿预定方向通过定向狭缝排出。 定向狭缝被布置成大致平面的构造以形成输送轨道。 侧壁设置在输送轨道的任一侧上以在输送轨道上方延伸。 卷曲材料可以是卷曲纤维的平面带,例如卷曲的醋酸纤维的平面带。 卷曲可以沿上下方向或前后方向延伸。 增压室可以由一对细长的支撑件形成,在细长的支撑件中具有切口部分。 在这种情况下,定向狭缝由配合到细长支撑件的切口部分中的气刀形成,并且细长的支撑件限定侧壁。 利用切口部分,可以调节切口部分内的气刀的位置以改变气刀之间的间隔。 或者,增压室可以由具有中空内部的管状材料形成。 在这种情况下,定向狭缝是部分地通过管状材料形成的切口,使得切口穿透到管状材料的中空内部。