GB451987A - Method of and means for cutting thread-like bodies into staples - Google Patents

Abstract

451,987. Cutting threads for staple flbre. GRUNERT, K., 4, Lutherplatz, Zittau, Saxony, Germany. July 10, 1935, Nos. 19735 and 19736. Convention dates, July 10, 1934 and Jan. 12, 1935. [Class 120 (iii)] In a method of cutting a rapidly moving fibrous bundle into staples wherein the bundle is held under tension between two circularly moved pairs of jaws separated by a gap, and is cut in the gap by a rotating knife, the knife rotates in a plane perpendicular to the plane of movement of the pairs of jaws. The fibre bundle 5 is fed upon a band and falls therefrom into the nip of a pair of draw rollers 1, 2 rotating in a vertical plane. The roller 1 may have a grooved surface 3 and the roller 2 a soft rubber covering 4. The two knives 6 are fixed at diametrically opposed points on the fly wheel 7 connected by gears with the draw rollers 1, 2 and rotating in a plane perpendicular to the plane of rotation of the rollers. The wheel 7 is synchronized with the draw rollers 1, 2 so that the knives 6 out the fibre bundle in the gaps 8 between the engaging portions of the draw rollers 1, 2. The apparatus may be driven by an electro-motor or from the transport band feeding the fibres. Two similar apparatuses may be arranged side by side so that by moving a thread guide, the fibre bundle may be lead either to one or the other, thus avoiding loss of time when, e.g. a knife is to be changed.