초록 ▼

A delivery head assembly is provided for forming a tape band from a plurality of tows and applying the band as superimposed layers in a helical pattern on to a mandrel to produce non-uniform cross sectional articles. This head assembly is composed of a distribution section, ribbonizing section, coat

A delivery head assembly is provided for forming a tape band from a plurality of tows and applying the band as superimposed layers in a helical pattern on to a mandrel to produce non-uniform cross sectional articles. This head assembly is composed of a distribution section, ribbonizing section, coating section, add section, and compaction roller.

대표청구항 ▼

A delivery head assembly for a fiber placement machine, having an input end for entry of a plurality of resin impregnated fibrous tows and an output end for applying superimposed layers of the tows in the form of a band in a helical pattern onto a mandrel to produce an article having varying contour

A delivery head assembly for a fiber placement machine, having an input end for entry of a plurality of resin impregnated fibrous tows and an output end for applying superimposed layers of the tows in the form of a band in a helical pattern onto a mandrel to produce an article having varying contours, comprising: a) distributing means being located at said input end of the delivery head assembly for receiving and spacing the tows in a single plane and feeding the tows inwardly in said assembly, b) ribbonizing means for spreading the tows to a desired width and thickness by heating and applying pressure, flattening the tows into intimate contact with one another and fusing the tows to each other, thus forming a quality tape band, c) chilling means for cooling the tape band coming from the ribbonizing means, d) cutting means for cutting complete across the tape in a single action while the delivery head assembly is in motion, e) add means upstream from said cutting means for holding said cut tape band and adding on demand to permit the application of tape band to the mandrel where desired, and f) compaction roller means for applying superimposed layers of the tape band onto the mandrel.