Spinning apparatus and method with blowing by means of a...

Details Spinning apparatus and method with blowing by means of a... Spinning apparatus and method with blowing by means of a...

D - Textiles, Paper

01

D

D01D 5/088 (2006.01) D01D 5/06 (2006.01) D01F 2/00 (2006.01)

Patent

CA 2465286

The invention relates to device for producing endless shaped bodies from a molding compound, such as a spinning solution containing water, cellulose and tertiary amine oxide. The device (1) comprises a nozzle plate (3) with extrusion openings (4), through which the molding compound is extruded to form essentially thread-shaped endless shaped bodies (5). The endless shaped bodies (5) are guided through an air gap (6) and, inside a precipitation bath (9), are guided by a redirecting element (10) to a bundling device (12) where they are combined to form a fiber bundle. A blowing device (14) is provided inside the air gap and directs a cooling gas steam toward the endless shaped bodies (5) in a direction perpendicular to the lead-through direction (7). In order to improve the spinning certainty and the mechanical properties of the endless shaped bodies, the invention provides that a first shielding area (20) is placed directly in front of the extrusion openings (4) that shields the extrusion openings from the action of the cooling gas stream.

L'invention concerne un dispositif pour fabriquer des corps moulés en continu à partir d'une matière à mouler telle qu'une solution de filage contenant de l'eau, de la cellulose et de l'oxyde d'amine tertiaire. Le dispositif (1) comporte un corps de filière (3) doté d'orifices d'extrusion (4), à travers lesquels la matière à mouler est extrudée en corps moulés en continu (5) pratiquement sous forme de fils. Ces corps moulés en continu passent par une fente d'aération (6) et sont conduits par un élément de déflexion (10) dans bain de précipitation (9) jusqu'à un dispositif de regroupement (12), où ils sont regroupés en un faisceau de fibres. Dans la fente d'aération se trouve un dispositif de soufflerie (14) qui dirige un flux de gaz de refroidissement sur les corps moulés en continu (5) transversalement à la direction de passage (7). L'invention vise à perfectionner la sécurité de filage et les propriétés mécaniques des corps moulés en continu (5). A cet effet, une première zone de protection (20) est disposée directement en rapport avec les orifices d'extrusion (4), pour protéger ces derniers des effets du flux de gaz de refroidissement.

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