Patent ID: 9003609
Filing Date: 2015-04-14
Classification: B27N,D01G,D04H

Abstract:
1. A device for forming a uniform or profiled fleece or a uniform or profiled fiber flock mat, comprising: a material dispensing device, which produces a fleece or a fiber flock mat of a predetermined width; a transport device downstream from the material dispensing device for further transport of the fleece or fiber flock mat in a transport direction; a measuring device for measuring a mass per unit area of the fleece or fiber flock mat across the width of the fleece or fiber flock mat transversely to the transport direction in a measuring area of the transport device to determine a transverse profile and a longitudinal profile of the fleece or fiber flock mat; a profile-changing device in a profile-changing area downstream from the measuring area, wherein the profile-changing device comprises a feed device for supplying individualized fibers or fiber flocks to the fleece or the fiber flock mat or a removal device for removing individualized fibers or fiber flocks from the fleece or from the fiber flock mat; and a control unit for controlling the profile-changing device on the basis of results of the measuring device in such a way that, to make the fleece uniform, the profile-changing device supplies individualized fibers or fiber flocks to identified thin sections in the fleece or fiber flock mat or removes individualized fibers or fiber flocks from identified thick sections in the fleece or fiber flock mat, or in such a way that, to form a desired nonuniform transverse profile or longitudinal profile of the fleece or of the fiber flock mat with thin sections and thick sections, the profile-changing device supplies or removes individualized fibers or fiber flocks in targeted fashion.