Abstract: A needling device to consolidate a fleece. The device including at least one needle plate with an array of needles; at least one column with its longitudinal axis rigidly connected to the at least one needle plate; drive systems; a sealed housing; and at least one guide pot. The drive systems are configured to impart to the at least one column a to and fro motion so that the needles follow an elliptical path to pass through, in one direction then the other, the fleece that passes in front of it in the machine drive direction to consolidate it. The sealed housing containing part of the column and drive systems and wherein the at least one guide pot is fitted in an opening in the sealed housing and oscillates in relation to an axis of oscillation perpendicular to the longitudinal axis and the machine drive direction.

Abstract: A needling machine to consolidate a fleece. The machine includes one or more needle plates having an array of needles; one or more columns coupled to the needle plates; and driving means configured to impart an elliptical to and fro motion to each needle plate so that the needles pass first in one direction, then the other, over the fleece passing before it in the machine. The machine further comprising a sealed housing enclosing part of each column and driving means; and one or more guide pots within the sealed housing. Each driving means including a longitudinal driving means imparting to each column a straight to and fro motion. Each needle plate oscillates in relation to each respective column. The driving means further comprise transverse driving means imparting to a point on each needle plate a to and fro motion essentially parallel to the machine direction.

Abstract: Needling device to consolidate a fleece or web of fibres, in particular non-woven, by needling, comprising: at least one needle plate with an array of needles; at least one column with its longitudinal axis rigidly connected to the at least one needle plate; drive systems configured to impart to the at least one column a to and fro motion so that the needles follow an elliptical path to pass through, in one direction then the other, the fleece or web of fibres that passes in front of it in the machine or MD drive direction to consolidate it; a sealed housing containing part of the column and its drive system and at least one guide pot fitted in an opening in the sealed housing and oscillating in relation to an axis of oscillation perpendicular to the longitudinal axis and the direction MD, The at least one column passing through the housing through at least one guide pot and sliding in it and drive systems comprising the first longitudinal drive system configured to impart to the at least one column a

Abstract: Needling machine to consolidate a fleece or web of fibres, in particular non-woven, by needling, comprising: one or more needles plates having an array or bank of respective needles; one or more columns with longitudinal, in particular vertical axis, coupled to the respective needle plate; drive systems configured to impart an elliptical to and fro motion to each needle plate and/or needles so that the needles pass first in one direction, then the other, over the fleece or web of fibres passing before it in the machine or drive MD direction to consolidate it; a sealed housing enclosing part of each column and drive system; and one or more guide pots fitted in an opening in the sealed housing, each column passes through the housing through a guide pot, sliding in it, characterised in that, the drive systems comprise a longitudinal drive system configured to impart to each column a straight to and fro motion parallel to the longitudinal, in particular vertical axis; each needle plate can oscillate in relat

Abstract: Needles (47) periodically penetrate into a needling path (1) between a stripper plate (26) and a needling table (24). In the process, the needles describe an elliptical movement by means of which they accompany the textile when they are in penetration phase. The elliptical movement is generated by oscillating-sliding of a rod (38) in a rotating guide (39). The rod (38) is actuated by two crank connecting-rod systems (51a, 51b), the adjustable phase shifting of which defines the horizontal amplitude of the movement of the needles. Use for simplifying elliptical guiding means, reducing plays and air turbulences.