US 4,044,423 AGranted

Pneumatic cleaner particularly for cleaning elements of textile machinery

OwnerGiuseppe Gaiardelliinventor

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Abstract

A pneumatic cleaner, particularly for turbines and like elements of textile machines which comprises a suction head, a suction duct communicating at one end with a conical suction mouth defined in the head and on the other end with a collecting container. The suction head has a front surface provided with a step-like annular projection so as to match with the entrance of a turbine or like element of a textile machine and to engage with the turbine entrance geometrically. The cleaner is also provided with a compressed air duct ending with a nozzle inside the suction duct, the nozzle being oriented so as to form a depression and suction in the suction mouth. The head further comprises a first and a second passage each communicating at one end with a source of compressed air and each having at the other end an air blast nozzle ending at the conical mouth of the suction head. The air blast nozzle of the first passage is directed with its axis crossing the axis of the conical mouth at a point outside thereof and the air blast nozzle of the second passage is inclined with respect to the front surface of the head and has an axis skew with respect to the axis of the conical mouth. Combined action of the air blast nozzles creates air movement with a vortical component in the object to be cleaned, thereby causing dust material and the like to be dislodged to the center where suction through said suction mouth is greatest.

Claims1

Dependent claims

A pneumatic cleaner, particularly for cleaning turbines of twisting machines, comprising a suction head having a suction duct and a front surface defining a conical suction mouth communicating with said suction duct, said conical suction mouth sloping from said front surface toward said suction duct, a nozzle inside said suction duct and means for connecting said nozzle to a source of compressed air, said nozzle being oriented to generate an air jet inside said suction duct directed opposite to said suction mouth for generating suction at said suction mouth and inside said suction duct, a first passage within said suction head separate from said suction duct and having an air blast nozzle opening substantially at the peripheral portion of said conical suction mouth and directed with an axis crossing the axis of said conical suction mouth at a point outside of said suction head for creating an air jet centrally oriented into the object to be cleaned, a second passage within said suction head separate from said first passage and from said suction duct and having an air blast nozzle opening into said conical suction mouth in a direction inclined with respect to said front surface and having an axis skew with respect to the axis of said conical suction mouth for creating a vortical air movement inside the object to be cleaned, means for connecting said first and second passage to a source of compressed air, means on said front surface for geometrical connection of said head with the object to be cleaned, and a collecting container at the outlet of said suction duct, whereby simultaneous air ejection from said air blast nozzles causes vortical dislodgement of foreign material from the object to be cleaned to the center thereof while air ejection from said nozzle inside said suction duct causes suction of the dislodged material through said suction duct to said collecting container.

Dependencies are inferred from the claim text.