The function of the draw frame is to improve the internal structure of the sliver, thereby improving the uniformity of its long segments, while reducing the weight unevenness, making the fibers in the sliver straight and parallel, reducing The hook is used to make the fineness meet the regulations, so that raw materials of different types or different qualities can be mixed evenly to achieve the prescribed mixing ratio. The draw frame is divided into two categories according to the form of the drafting mechanism: roller draft frame and needle carding machine.
Components
Cotton draw frames are available in single-eye, two-eye, four-eye and other types. A draw frame that feeds multiple slivers and combines and drafts them into one sliver is called a single-head draw frame; one that outputs two slivers is called a two-head draw frame, and so on. Each draw frame has its own drive system. The draw frame consists of a feeding part, a drafting part, a strip forming part and some automatic devices.
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