Drying machine for fabric and method of drying fabric

Abstract

Drying machine for continuous fabric, comprising A) an initial accumulation station in which the fabric is adapted to enter the machine from the outside, continuously and in open width, with a first speed, and a final accumulation station from which the fabric is adapted to exit toward the outside of the machine, continuously and in open width, with the same said first speed; B) a drying tunnel between said accumulation stations through which the fabric in open width is adapted to pass; C) a device for alternated movement of the fabric between said two accumulation stations, inside said tunnel, with a second movement speed greater with respect to said first speed so as to accumulate fabric alternately on said two accumulation stations, wherein said alternated movement device comprises a bell and a rotating roller arranged inside said bell, said roller being adapted to reverse its direction of rotation, said roller having an inner cavity and a cylindrical surface provided with a plurality of passages toward said inner cavity, the cylindrical surface of said roller and the inner surface of said bell defining between them at least part of said drying tunnel, said fabric being arrangedin open width on said cylindrical surface of said roller, said fabric being arranged freely on said roller, in said tunnel and in said accumulation stations; D) a hot air system comprising an air heating station, operatively connected on the delivery side with said drying tunnel, said system also comprising a suction duct for drawing air from inside said roller toward an area outside said tunnel,so that the hot air passes through said tunnel, enters said roller through said passages striking the fabric arranged on said roller, at least partially drying it, and exits from said roller outsidesaid tunnel.

Description

technical field [0001] The invention relates to the field of industrial systems for the production and treatment of fabrics. More particularly, the present invention relates to a drying machine for fabrics and a method of drying fabrics. More specifically, the machine is suitable for fabrics that enter the machine continuously and exit the machine continuously, so that the machine can be used in continuous production / processing lines where the fabric passes continuously between work stations. [0002] The fabric is intended to be arranged in an open width inside the machine and may be open (i.e. extending in a single layer transversely to the feed direction of the fabric with two transverse ends free) or tubular (i.e. closed in cross-section into ring, without ends, i.e. two transverse ends joined together). Furthermore, the fabric is intended to be "free-standing" in the machine, ie it is neither guided laterally nor constrained laterally by clamps, pins, etc. on the convey...

AI Technical Summary

Problems solved by technology

Such machines are generally very costly compared to their achievable production rates

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