Clothing wire for a roller of a carding machine

Patent metadata

Field	Value
Publication number	US-2016138201-A1
Application number	US-201414894055-A
Country	US
Kind code	A1
Filing date	May 27, 2014
Priority date	May 27, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

A clothing wire for a clothing roller of a carding machine extends in a wire longitudinal direction and having a base segment, which is thicker transversely to the wire longitudinal direction. A leaf segment, which is narrower compared to the base segment, protrudes from the base segment. A plurality of teeth is formed on the leaf segment along the clothing wire in the wire longitudinal direction. Each tooth has two leaf segment lateral surfaces adjoining the base segment. On at least one of the leaf segment lateral surfaces, at least one projection is formed on each tooth. The cross-sectional profile of the projection is asymmetric and preferably has the contour of a nose. The design of the clothing wire results in a homogenization or parallelization of the fibers, with little wear of the clothing wire and less damage to the fibers.

First claim

1 . A clothing wire ( 13 ) extending in a wire longitudinal direction (l) for a clothing roller ( 10 ) of a carding machine, the clothing wire comprising:
a base portion ( 14 ) with a base surface ( 16 ) configured for being supported by the clothing roller ( 10 ); a flat leaf portion ( 15 ) extending away from the base portion ( 14 ) in a height direction (h) perpendicular to the base surface ( 16 ); wherein the leaf portion ( 15 ) has, on a side facing away from the base portion ( 14 ), outside edges ( 26 ) that extend serratedly so as to form teeth ( 28 ) thereon, and wherein the leaf portion ( 15 ) has a first leaf portion lateral surface ( 15 a ) and a second leaf portion lateral surface ( 15 b ), each extending from the base portion ( 14 ) up to the associated outside edge ( 26 ); and wherein, on at least one of the leaf portion lateral surfaces ( 15 a , 15 b ), at least one projection ( 24 ) is formed rising in a transverse direction (q) which extends perpendicularly to the height direction (h) and to the wire longitudinal direction (l), said projection also extending along the wire longitudinal direction (l), wherein the at least one projection ( 24 ) is located on an upper half of the at least one leaf portion lateral surface ( 15 a , 15 b ) spaced from the base portion ( 14 ) in the height direction (h), wherein the at least one projection ( 24 ) has an asymmetrical cross-sectional profile (P); wherein the cross-sectional profile (P) of the at least one projection ( 24 ) has a rounded ridge ( 30 ), from which ridge extends a first flank ( 31 ) along the height direction (h) away from the base portion ( 14 ), and a second flank ( 32 ) that extends toward the base portion ( 14 ), wherein the second flank ( 32 ) is arranged closer to the base portion ( 14 ) than the first flank ( 31 ), and a length (L 1 ) of the first flank ( 31 ) is greater than a length (L 2 ) of the second flank ( 32 ).

2 . The clothing wire as in claim 1 , wherein the at least one projection ( 24 ) is located on an upper third of the at least one leaf portion lateral surface ( 15 a , 15 b ) spaced from the base portion, in the height direction (h).

3 . The clothing wire as in claim 1 , wherein the length (L 2 ) of the second flank ( 32 ) is between 10% to 30% of a total length (L ges ) of the at least one projection ( 24 ).

4 . The clothing wire as in claim 3 , wherein the length (L 2 ) of the second flank ( 32 ) is between 15% to 25% of the total length (L ges ) of the at least one projection ( 24 ).

5 . The clothing wire as in claim 1 , wherein a maximum width (B 1 ) of the clothing wire ( 13 ) in the transverse direction (q) at the at least one projection ( 24 ) is between 20% to 50% of a width (B 2 ) of the base portion ( 14 ) of the clothing wire ( 13 ).

6 . The clothing wire as in claim 5 , wherein, near the at least one projection, the maximum width (B 1 ) of the clothing wire is between 25% to 35% of the width (B 2 ) of the base portion ( 14 ) of the clothing wire ( 13 ).

7 . The clothing wire as in claim 1 , wherein a total length (L ges ) of the at least one projection ( 24 ) is between 20% to 40% of a total length (L 3 ) of the leaf portion ( 15 ) in the height direction (h).

8 . The clothing wire as in claim 7 , wherein the total length (L ges ) of the at least one projection ( 24 ) is between 25% to 35% of the total length (L 3 ) of the leaf portion ( 15 ) in the height direction (h).

9 . The clothing wire as in claim 1 ,
wherein the at least one projection ( 24 ) is formed so as to be without offsets and edges.

10 . The clothing wire as in claim 1 ,
wherein the at least one projection ( 24 ) is arranged only on the second leaf portion lateral surface ( 15 b ).

11 . The clothing wire as in claim 1 ,
wherein exactly one projection ( 24 ) is arranged on at least one of the leaf portion lateral surfaces ( 15 a , 15 b ).

12 . The clothing wire as in claim 1 ,
wherein the first leaf portion lateral surface ( 15 a ) extends in a plane (E 1 ) in regions without the at least one projection ( 24 ), and the second leaf portion lateral surface ( 15 b ) extends in a plane (E 2 ) in regions without the at least one projection ( 24 ).

13 . The clothing wire as in claim 12 , wherein both the first flank ( 31 ) and the second flank ( 32 ) of the at least one projection ( 24 ) have linear regions, wherein an angle (α 1 ) defined by a tangent of the linear region of the first flank ( 31 ) and the respective plane (E 1 , E 2 ) adjoining the at least one projection ( 24 ) is smaller than an angle (α 2 ) defined by a tangent of the linear region of the second flank ( 32 ) and the respective plane (E 1 , E 2 ) adjoining the at least one projection ( 24 ).

14 . The clothing wire as in claim 1 , wherein a plane (E 1 ) in which the first leaf portion lateral surface ( 15 a ) extends is oriented at a right angle with respect to the base surface ( 16 ) of the base segment ( 14 ), and a plane (E 2 ) in which the second leaf portion lateral surface ( 15 b ) extends is inclined with respect to the first leaf portion lateral surface ( 15 a ).

15 . The clothing wire as in claim 1 , wherein a first plane (E 1 ) in which the first leaf portion lateral surface ( 15 a ) extends and a second plane (E 2 ) in which the second leaf portion lateral surface ( 15 b ) extends are inclined toward each other, wherein a size of an angle included by the first plane (E 1 ) and the base surface ( 16 ) of the base portion ( 14 ) and an angle included by the second plane (E 2 ) and the base surface ( 16 ) have the same size.

16 . Clothing wire as in claim 15 , wherein the plane (E 1 ) of the first leaf segment lateral surface ( 15 a ) and the plane (E 2 ) of the second leaf segment lateral surface ( 15 b ) are inclined toward each other, wherein the size of the angle included by the plane (E 1 ) and the base surface ( 16 ) of the base segment ( 14 ) and the angle included by the plane (E 2 ) and the base surface ( 16 ) have the same size.

Assignees

• Groz Beckert Kg

Inventors

• Bocht Bernhard

Classifications

• D01G15/88 Primary

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