Patent ID: 6158090
Filing Date: 2000-12-12
Classification: D01G

Abstract:
A device for collection and drawing of a web of fibers, comprising:a doffer;an unloading cylinder;a compactor unit;a belt conveyor;a controller; anda drawing unit, including,a body, andfirst and second pairs of driven cylinders provided downstream of the body,wherein the device concentrates the web of fibers into a strip with a width which corresponds to a gap in the body,the strip is provided to the body of drawing unit,the body guides the strip to the first and second pairs of driven cylinders which carry out the drawing,the first and second pair of driven cylinders are coupled to the controller,the first and second pair of driven cylinders are actuated via the controller, such that the linear speed of the second pair of driven cylinders is higher than that of the first pair of driven cylinders,the first pair of driven cylinders are actuated via the controller, such that the first pair of driven cylinders draws the strip at a linear speed which is greater than that of the compactor unit, andthe first pair of driven cylinders are actuated via the controller, such that a ratio between the linear speeds of the first pair of driven cylinders and the compactor unit is controlled during drawing of the strip between the compactor unit and the first pair of driven rollers.