US 11,718,930 B2
Spinning device and method for spinning up a spinning device, and spin-up device
Franz Alfred Dürnberger, Lenzing (AT); Christoph Schrempf, Bad Schallerbach (AT); and Christian Sperger, Schörfling (AT)
Assigned to LENZING AKTIENGESELLSCHAFT, Lenzing (AT)
Appl. No. 16/754,965
Filed by LENZING AG, Lenzing (AT)
PCT Filed Oct. 8, 2018, PCT No. PCT/EP2018/077362
§ 371(c)(1), (2) Date Apr. 9, 2020,
PCT Pub. No. WO2019/072779, PCT Pub. Date Apr. 18, 2019.
Claims priority of application No. 17020468 (EP), filed on Oct. 12, 2017.
Prior Publication US 2020/0299864 A1, Sep. 24, 2020
Int. Cl. D01D 5/18 (2006.01); D01D 5/02 (2006.01); D01D 5/06 (2006.01); D01D 10/00 (2006.01); D01D 13/02 (2006.01); D01D 4/02 (2006.01); B65H 51/02 (2006.01); B65H 54/00 (2006.01); D01D 10/04 (2006.01)
CPC D01D 5/02 (2013.01) [B65H 51/02 (2013.01); B65H 54/00 (2013.01); D01D 4/022 (2013.01); D01D 5/06 (2013.01); D01D 5/18 (2013.01); D01D 10/00 (2013.01); D01D 10/04 (2013.01); D01D 13/02 (2013.01); B65H 2701/3132 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for spinning up a spinning device for the continuous extrusion of molded bodies from a spinning solution comprising a solvent and cellulose dissolved in the solvent, wherein
the molded bodies are extruded from the spinning solution through spinnerets of the spinning device in the form of a loose spinning curtain,
the molded bodies of the loose spinning curtain are twisted around a torsion axis via a rotating member are combined into a molded body bundle after the extrusion, and
the molded body bundle is, in a further step, fed to a draw-off member of the spinning device in order to start a continuous extrusion of the molded bodies,
wherein the tensile strength of the molded bodies of the loose spinning curtain, after their extrusion and before combining them into a molded body bundle, is increased in at least some areas, wherein an automatic gripper grabs the molded body bundle and feeds it to the draw-off member of the spinning device by machinery, and wherein the rotating device, draw-off member and automatic gripper are configured to spin-up the spinning device.