DE01440122T1 - Straight line combing and straight combing machine for carrying out the method - Google Patents

Abstract

The invention concerns a rectilinear combing method and a combing machine therefor. Said method is characterised in that it consists essentially in combing the fibre heads with a circular comb (7), equipped with needles or teeth (8) distributed over at least 60 % of its periphery, said circular comb (7) performing a fraction number or a whole number of rotations (N) per machine cycle. The invention is more particularly applicable in the textile industry, in particular to rectilinear combing machines.

Claims (22)

Method of linear combing, characterized net in that substantially combing the fiber heads during approximately one complete revolution of a circular comb ( 7 ), which has needles or teeth on its entire circumference ( 8th ) takes place during a machine cycle, wherein the annular comb ( 7 ) performs more than one complete revolution (M) per machine cycle. Method according to claim 1, characterized in that the combing of the fiber heads by the annular comb ( 7 ) is performed during a rotation of the latter, which is between 0.7 and 1.5 revolutions. A method according to claim 1 or 2, characterized in that the combing of the fiber heads during at least one complete revolution of the annular comb ( 7 ), the latter performing more than one complete round per machine cycle. A method according to claim 1 or 2, characterized in that the combing of the fiber heads during more than one complete revolution of the annular comb ( 7 ), wherein the annular comb ( 7 ) performs more than one complete cycle per machine cycle. Method according to one of Claims 1 to 4, characterized in that a value "p" of the circulation period of the annular comb ( 7 ) such that the active arch of the clothing of the comb ( 7 ), which corresponds to the length of the set of needles or teeth ( 8th ), which is used during the phase of combing the fiber heads, has a beginning corresponding to the angular position expressed in degrees which the annular comb ( 7 ) occupies the moment in which the first row of needles or teeth ( 8th ) works into the fiber heads at the beginning of the phase of combing the fiber heads, and that from one machine cycle to another by a value "k1" expressed in degrees of the annular crest ( 7 ) is out of phase, which is the ratio: k1 = 360 × 360 / p equivalent. Method according to claim 5, characterized in that that he a relative beginning of the active arc of the clothing of the comb k1 ', which is e.g. by k1 '= k1 - (INT (N) × 360) where INT (N) is the integral part of the number N, which corresponds to the number of revolutions that the annular comb per machine cycle, and where k1 'between 10 degrees and 350 degrees. Method according to Claim 6, characterized that k1 'near 350 degrees is 10 degrees away. Method according to claim 5, characterized in that the value "p" of the orbital period of the annular comb ( 7 ) is chosen between two real numbers given by: k2 = P / PGCD (p, 360) ≥ 4 where PGCD (p, 360) is the largest common divisor of the values "p" and "360" expressed in degrees, where the variable "k2" is the number of machine cycles at the end of which the same line of needles or rows of needles ( 8th ) of the annular comb ( 7 ) works its way into the fiber heads, which protrude beyond the pliers. Method according to claim 5, characterized in that the value "p" of the orbital period of the annular comb ( 7 ) is on the order of 130 degrees. A linear combing machine for carrying out the method according to any one of claims 1 to 9, comprising a feeder, a puller, a device for cleaning the fiber heads, which has an annular comb, and means for cleaning the rear fiber sections, characterized in that the annular comb ( 7 ) is a cylinder, which on its entire lateral surface with needles or teeth ( 8th ) are arranged, which have the same or different properties, but are arranged according to a repeating pattern, wherein the rotational speed of the cylinder is continuous and adjustable and wherein the comb ( 7 ) approximately one complete revolution during the phase of combing the fiber heads ( 23 ) and performs more than one full turn (N) per machine cycle. Combing machine according to claim 10, characterized in that the annular comb ( 7 ) rotatably connected to a support shaft, which in turn rotatably cantilevered on the frame ( 10 ) of the machine, the frame on the side of the free end of the support shaft having an opening which allows extraction of the annular comb in the lateral direction. Combing machine according to claim 10, characterized in that the annular comb ( 7 ) by several the form of a circular arc ( 34 ' ) having parts, which in each case with teeth or needles ( 8th ) are provided. Combing machine according to claim 10 or 12, characterized in that the teeth or needles ( 8th ) of the annular comb ( 7 ) by making one or more toothed wires ( 35 ) rolls up under a take-up angle, which relative to the axis of the annular comb ( 7 ) is between 55 degrees and 125 degrees, with adjacent turns having characteristic properties (A, B, C, etc.) that are the same or different and that repeat the turns of the turns periodically. Combing machine according to claim 10, characterized in that the annular comb ( 7 ) by stacking toothed rings ( 36 ) or parts of annular rings ( 37 ) each having identical teeth or teeth having different characteristics (A, B, C, etc.) according to a repeating sequence. Combing machine according to one of Claims 10 and 12 to 14, characterized in that the teeth or needles ( 8th ) of the annular comb ( 7 ) have a density which on the circumference of the annular comb ( 7 ) is equal or has different densities, for example, in which one NEN adjacent rows of needles or to 8th ), which have different density. Combing machine according to claim 10, characterized in that it does not have a brush which is inserted into the fiber heads ( 23 ) intervenes. Combing machine according to claim 10, characterized in that the upper jaw ( 4 ) of the forceps ( 3 ) with an indenting device ( 4 '' ), which has a deflection surface ( 4 ' ), which the fiber heads ( 23 ) is forced so that it is almost perpendicular to the tangent of the annular ridge (FIG. 7 ) are aligned. Combing machine according to claim 17, characterized in that the indenting device ( 4 '' ) in its lower portion a support surface ( 4 ''' ) connected to the head of the fibers ( 23 ) and forces it to move between the needles or teeth ( 8th ) of the annular comb ( 7 ) penetrate, wherein the support surface ( 4 ''' ) starting from the deflection surface ( 4 ' ) extends over a distance of at least 5 mm. Combing machine according to claim 18, characterized in that the support surface ( 4 ''' ) of the indenting device ( 4 '' ) is just. Combing machine according to claim 18, characterized in that the support surface ( 4 ''' ) of the indenting device ( 4 '' ) is curved, the radius of curvature concentric with that of the annular comb ( 7 ). Combing machine according to claim 17, characterized in that the indenting device ( 4 '' ) an integral part of the upper jaw ( 4 ) of the forceps ( 3 ). Combing machine according to claim 17, characterized in that the indenting device ( 4 '' ) is removable.