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公开(公告)号：US3968770A
公开(公告)日：1976-07-13
申请号：US485443
申请日：1974-07-03
申请人： Robert G. Marrs
发明人： Robert G. Marrs
摘要： A simplified press mounted, web-driven paper tinting unit especially useful for high speed presses and having low pressure, substantially clog-free, infinitely manually adjustable tinting fluid dispensing heads positioned proximal to underlying, freely rotatable tinting fluid-receiving rolls forming a part of the unit. The heads are preferably rotatable members having radially offset fluid delivery tubes and selectively movable betwen positions where all of the fluid from the latter directly impinges on the receiving rolls, to positions where at least a part of such fluid flows past the rolls for cyclic re-collection and reuse. In this manner, delivery of the tinting fluid to the web can be easily varied during tinting operations as desired without the need of flow-restricting metering valves or the like which are prone to clogging. The anti-clogging properties of the heads are enhanced by provision of relatively large diameter fluid conduits coupling a low pressure tinting fluid pump to the heads, which permits substantially unrestricted fluid flow to the latter under relatively low pressure. Coloration control is also facilitated through the use of flexible, synthetic resin, plate-like metering members positioned in spanning, tangential engagement with the tinting fluid-receiving rolls at points thereon forward of the areas where tinting fluid impinges. The metering members are operable to automatically yield in response to variable hydraulic pressures directed thereagainst from the accumulated tinting fluid on the rotating reception rolls to permit variable regulation of the quantity of tinting fluid ultimately applied to the moving web.
摘要翻译： 一种简单的压力安装的卷筒纸式着色装置，特别适用于高速冲压机，并且具有低压，基本上无阻塞，无级手动调节的着色流体分配头，其位于下面的可自由旋转的着色流体接收辊的下面，形成一部分 那个单位。 头部优选地是具有径向偏移的流体输送管的可旋转构件，并且可选择地移动位置，其中来自后者的所有流体直接冲击在接收辊上，至少部分这种流体流过辊子用于循环重新排列的位置， 收集和重用。 以这种方式，可以根据需要在着色操作期间容易地将着色流体递送到幅材上，而不需要易于堵塞的限流计量阀等。 通过提供将低压着色流体泵耦合到头部的相对较大直径的流体管道来增强头部的防堵塞性能，这允许在相对低的压力下基本上不受限制的流体流向后者。 通过使用柔性合成树脂，位于跨度的板状计量构件，着色控制也可通过在着色流体撞击的区域前方的点处与着色流体接收辊切线接合。 计量构件可操作以响应于可转动的液压而产生的压力，所述可变的液压压力来自转动的接收辊上的累积着色流体，以允许可调节最终施加到移动幅材上的着色流体的量。
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