Device for melt spinning and cooling just extruded filament sheets

• Main Authors: HERRNDORF MARC-ANDRE, FISHER MATTHEW, NITSCHKE ROLAND
• Format: Patent
• Language: Chinese; English
• Published: 19.07.2022
• Subjects: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention relates to a device for melt-spinning and cooling just extruded filament sheets, comprising at least one spinning nozzle unit which is held on the bottom side of a spinning box. At least one hollow cylindrical cooling cylinder is arranged below the spinning nozzle unit, is provided with an air-permeable cylinder wall and extends between a filament inlet and a filament outlet in the air chamber. A connecting piece with a thread channel is arranged between the thread inlet of the cooling cylinder and the spinning nozzle unit, and the connecting piece is provided with at least one ventilation channel leading into the thread channel. In order to achieve a preliminary cooling of the filament strand in the filament channel between the spinning nozzle unit and the cooling cylinder, according to the invention, the ventilation duct of the connecting piece is assigned a closing mechanism by means of which the channel cross-section available in the ventilation duct can be adjusted. 本发明涉及一种用于熔纺并冷却刚挤出的长丝片的装置