WO2015135982A1 - Fil métallique de garniture de carde et procédé de fabrication de nappes de fibres discontinues - Google Patents

Fil métallique de garniture de carde et procédé de fabrication de nappes de fibres discontinues Download PDF

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Publication number
WO2015135982A1
WO2015135982A1 PCT/EP2015/055057 EP2015055057W WO2015135982A1 WO 2015135982 A1 WO2015135982 A1 WO 2015135982A1 EP 2015055057 W EP2015055057 W EP 2015055057W WO 2015135982 A1 WO2015135982 A1 WO 2015135982A1
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WO
WIPO (PCT)
Prior art keywords
section
height
leaf
clothing
wire
Prior art date
Application number
PCT/EP2015/055057
Other languages
German (de)
English (en)
Inventor
Bernhard Bocht
Original Assignee
Groz-Beckert Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Groz-Beckert Kg filed Critical Groz-Beckert Kg
Priority to KR1020167027713A priority Critical patent/KR101760664B1/ko
Priority to CN201580013429.7A priority patent/CN106460246A/zh
Priority to JP2016557078A priority patent/JP2017512265A/ja
Priority to US15/125,547 priority patent/US20170002483A1/en
Priority to EP15711095.8A priority patent/EP3117033A1/fr
Publication of WO2015135982A1 publication Critical patent/WO2015135982A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to a clothing wire for a roll of a carding machine.
  • Carding machines or carding machines are used to open (singulate) or align, to homogenize (in nonwoven production) and / or to parallelize (in yarn production) fibers of a fiber material, for example a wool, cotton or even synthetic fibers or a fiber mixture .
  • the carding process can be used to produce a batt of fibrous material.
  • the batt consists of a loose composite of ordered individual fibers. From such a batt, for example, a nonwoven fabric can be produced.
  • the batt results in carding by the fibers are removed and summarized by a designated as Tambour large set roller by means of a pick-up means.
  • the carding machine can have various clothing rollers. Each set roller is occupied with approximately radially outward teeth, teeth or points. The number and / or the size and / or the density of the teeth, teeth or tips as well as their shape and shape can vary.
  • the clothing rollers are usually provided with all-steel accessories. These consist of a profiled clothing wire which is wound under tension on the relevant clothing roller.
  • the clothing wire has a foot portion and a blade portion.
  • the foot portion may be rectangular or square in cross-section, for example. From the foot section of the leaf portion protrudes, in the position of use approximately transversely to the lateral surface of the Clothed roller.
  • the blade section has a sawtooth profile to form the teeth or serrations.
  • the clothing wire is wound around the outer surface of the clothing roller under longitudinal tension and the two ends are fastened to the clothing roller.
  • Garnish wires are known per se.
  • CN 201512617 U describes a trim wire with sloped teeth on the blade portion.
  • a clothing wire is shown in which one side of the blade portion (blade portion side surface) is perpendicular and the other blade portion side surface is inclined to the base surface of the foot portion.
  • the inclined leaf section side surface has on the side facing away from the foot portion on a steeper course than on the remaining surface. As a result, the thickness of the sheet portion on the side facing away from the foot portion increases faster than in the remaining area of the sheet portion.
  • No. 6,185,789 B1 shows clothing wires with leaf-section side surfaces which have a plurality of bulges.
  • the advantage of these clothing wires is stated that they can separate the non-spinnable fibers and other foreign matter better from the spinnable fibers during carding than conventional clothing wires.
  • a countermeasure consists in a grinding of the carded wires clamped on a drum (clothing roller). In this way, the rounded tooth tips can be sharpened again.
  • the latter measure can be the long-term quality
  • the object of this invention is to provide a clothing wire, the optimal homogenization or parallelization of the fibers in the production of a longer operating time Fibrous allows, during the carding process, the fibers may not be damaged or only insignificantly.
  • the present invention proposes a clothing wire according to claim 1 and a method for producing staple fiber webs according to claim 16. From staple fiber webs either staple fiber yarns or nonwovens may be formed.
  • the characteristics of clothing wires according to the invention include foot sections which serve to rest the wire on a clothing roller.
  • Fitting roller rests is referred to as the base.
  • the base In general, the
  • edges (in the width direction) of the foot portions of adjacent wire sections are usually adjacent to each other.
  • the base of the foot sections extends in the wire longitudinal direction Z (first
  • Spatial direction is defined by the longitudinal course of the clothing wire) and in the width direction B (second spatial direction: extends transversely to the wire longitudinal direction).
  • the third spatial direction is the height direction H, which is perpendicular to the base of the foot portions and extends toward the outer surface of the clothing wire (i.e., toward the end of the blade portion remote from the foot portion).
  • the height values i.e., the values in the direction of the height thereby increase from the base area up to a maximum height of the leaf section.
  • Base area as “bottom” and the location of points near the outer surface (the Garniturdrahts) referred to as “top”.
  • the wire longitudinal direction, the height direction and the width direction are each (in pairs) perpendicular to each other. So with the three directions is one
  • the sheet portion extending in the height direction usually tapers upward, that is, the width of the sheet portion often decreases steadily with increasing height.
  • the sheet portion is bounded in the width direction by first and second sheet portion side surfaces.
  • Leaf section faces often (but not always) have a slope dh (b) / db
  • dh / db of the height as a function of the width, the amount of which is infinitely large, that is, the respective leaf portion side surface is parallel to the perpendicular on the foot portion surface. If this is the case, the aforesaid taper occurs because the other leaf section side surface (in the language of the present document "at least one leaf section side surface”) has a finite gradient dh / db, ie has an angle to the aforementioned perpendicular that is 0 ° is different.
  • Height direction is reached is referred to as the maximum height of the sheet section.
  • the height value at which the leaf portion (at the lower end) starts is called the minimum height.
  • Maximum height corresponds to the total height of the leaf section.
  • the minimum and maximum heights are therefore individual height values.
  • Total height is an extension (a length value) in
  • a wire is first pulled. Subsequently, the wire is rolled, forming a wire with a wide foot area and a less wide leaf area.
  • the cross section of the wire is in
  • Foot portion remote from the blade portion are usually periodically punched recesses, whereby teeth are formed.
  • the leaf area is hardened, at least in the area of the teeth.
  • the blade area at least in the area of the teeth
  • Garnish wires typically have a length of several hundred meters to several kilometers. In a pulled onto the clothing roller clothing wire is characterized by the
  • Foot sections a closed area (apart from the fine gaps between the clothing wires) formed.
  • the adjacent blade sections With a smaller width above the foot sections so-called. Garniturgassen are formed. Since (usually) the blade sections taper upwards, accordingly, the clothing passages delimited by the blade sections widen steadily upward.
  • the foot area may have flat side surfaces. But it can also each have on its one side surface (profile-shaped) elevations and / or recesses and on its other side surface with inverse (geometric
  • the foot portion can be clearly distinguished from the blade portion because it firstly has a geometry (larger width) that allows a (largely) closed portion to be formed in a clothing wire wound on a roller.
  • the geometry of the blade portion is such that (in a clothes wire wound on a roll), open fitting cups are formed, that is, the blade portions are generally smaller in width than the associated foot portions.
  • the blade portions have teeth (i.e., the blade portions terminate with a serrated outer contour in the height direction), whereas
  • Foot areas always end with a largely flat footprint in the height direction.
  • the blade sections are usually (at least partially) hardened (ie comparatively hard), whereas the foot sections have a lower hardness.
  • the amount of the gradient dh / db of at least a first portion of at least one leaf portion side surface is greater than the amount of the slope dh / db of at least a second portion thereof
  • the at least one first section and the at least one second section respectively extend between a smallest height value, which lies at the lower end of the respective section, and a largest height value, which lies at the upper end of the respective section.
  • the signs of the gradient dh / db of the at least one first and the at least one second section correspond.
  • an uppermost first portion at least one sheet portion side surface becomes steeper with respect to the base of the clothing wire (that is, the amount of inclination of this portion is larger) than a lower portion of the same sheet portion side surface.
  • Both sections should either rise or fall (i.e., the sign of the slopes of the two sections should be the same). Whether both sections rise or fall, respectively, depends on which of the two leaf section side surfaces they are located.
  • the gradients dh / db of those portions on the same sheet portion side whose height values are in a range extending between the smallest height value of the at least one second portion and another height value have not more than 1/8 of the total height of the sheet portion the aforementioned minimum height value of the at least one second section is the same sign as the slopes dh / db of the at least one first and the at least one second section.
  • Height direction is 1/8 of the total height of the sheet section.
  • the height range concerned is 1/5 of the total height of the leaf section.
  • Leaf portion side surface lying below the lower end of the at least one second portion Another valuable complement of the invention may be that the slope dh / db of the at least one leaf portion side surface also has the same sign everywhere above the at least one first portion (i.e., above the largest height value of the first portion). Alternatively or additionally, if the first portion does not directly adjoin the second portion, the slope dh / db of the at least one leaf portion side surface in the region between the at least one first and the at least one second portion (ie between the smallest height value of the at least one first portion and the largest height value of the at least one second portion) everywhere the same sign.
  • Leaf section (and not the flat transition area) include.
  • Elevations which have a certain size and are therefore not due to manufacturing defects / manufacturing tolerances, can during
  • the fibers to be carded can better in the
  • Leaf portion side surfaces usually have a constant slope).
  • the clothing passages are usually already very narrow, in particular substantially narrower than in the height region of the leaf section side surface just below their height
  • Elevations / indentations which connect directly to the at least second section or lie only slightly below it, lead (due to the small width of Garniturgasse) very often to a strong damage of the fibers to be carded and prevent the further penetration of the Fibers in the Garniturgassen.
  • elevations / indentations which are located at a greater vertical distance (typically at least 1/8 of the total height of the leaf section) below the at least one second section no longer damage the fibers to be carded or only to a very limited extent. Also, further penetration of the fibers into the garniture alley in question is no longer required at this point, i.e., even if the protuberances / indentations would hinder further penetration of the fibers there, this would have virtually no effect on the carding process.
  • Section or between the at least one first and the at least one second section cause little or no damage to the fibers to be carded and hinder the penetration of these fibers hardly, since they are located in a height range in which the Garniturgassen
  • Leaf section side surface whose height value corresponds to the maximum value of the sheet section is selected.
  • a location may also be selected which is slightly below the upper end (in the height direction), e.g. at most 0.2 (preferably at most 0.1 mm) below the upper end of the
  • Blade portion side surface for the largest height value of the at least one first section, a position is selected which lies in the upper quarter, preferably in the upper tenth of the relevant leaf section side surface.
  • the smallest height value of the at least one first portion may be in a range that is 50% to 98%, preferably 60 to 90%, of the total height (of the sheet portion) above the minimum height of the sheet portion.
  • the at least one first portion is usually placed in the longitudinal direction at a location of the leaf portion side surface at which it has a comparatively large height (extension in the height direction).
  • a position of the longitudinal extent is selected for the at least one first portion, on which a tooth tip is located.
  • the underlying (foot portion facing) portion of the sheet portion e.g. in the lower tenth of the leaf section.
  • Section extends.
  • the smallest height value of the at least one first section adjoins the highest height value of the at least one second section.
  • a location is selected at which the clothing wire is present, i. no place where the
  • Garnitur wire due to the punched teeth has a recess.
  • a clothing wire which runs straight in the longitudinal direction.
  • no bending of the clothing wire in the plane which is spanned by the longitudinal direction and the width direction should result in that portions of the blade portion side surface which are flat with the clothing wire extending straight in the longitudinal direction can be regarded as bent portions.
  • the at least one first and the at least one second section are selected such that they are arranged on planar sections of the at least one
  • Leaf section side surface fall.
  • the two sections then run straight in the plane subtended by the height and width directions, i. the slope dh / db is constant in each of the two sections and corresponds to the slope of the secants in the height and width directions, respectively
  • the at least one leaf section side surface may also be bent so that no at least first and / or at least second planar section lying at a "suitable" height (which extends between suitable height values) can be found on the relevant leaf section side surface Height has been, was already further forward in those sections
  • the at least one first portion and / or the at least one second portion may be infinitesimally small, that is, the infinitesimal small portion is no longer
  • the tangent is a special case of secants by a plane section and the amount of secant slope is the amount of derivative of the function that determines the contour of that particular section
  • Leaf section describes or more simply the amount of slope at this point.
  • the two sections can (but do not have to) lie one above the other in the vertical direction.
  • the two sections could easily be chosen so that they are arranged one above the other in the vertical direction.
  • the teeth of clothing wires often run obliquely, that is, they have a sawtooth shape in which the teeth are inclined.
  • the inclination angle of the tooth course usually the inclination of the tooth face is used (working angle).
  • the working angle is defined as the angle that the tooth face encloses with the vertical.
  • a minimum length of the sections may preferably be 1/100 mm, but advantageously also 5/100 or 1/10 mm.
  • Leaf portion side surface opposite leaf portion side surface preferably extends almost completely in a plane through the height
  • Spanned longitudinal direction ie their slope dh / db is infinite. But it can also have a different geometry, for example, it could to the height direction by a small angle, for example, less than 3 °, inclined (ie a finite amount have the slope dh / db). Or it could be mirror-symmetrical to the at least one leaf section side surface.
  • Leaf section side surface extends in a plane which is spanned by the height and the longitudinal direction and the second Blattabitesstress component (also in the longitudinal direction, but) inclined in the vertical direction.
  • Garnish wires take the width (widthwise width) of the
  • the width of the blade section increases only weaker (or not at all) in the upper area (facing away from the foot section) and then more strongly in the lower area (than in the upper one).
  • the transition between the small (or no) increase in width and the greater increase can be smooth (continuous) or in one or more steps, e.g. by the juxtaposition of several planar sections, z. B. a maximum of 4, preferably 2 to 3, take place.
  • the width of the clothing cups formed by a clothing wire according to the invention mounted on a clothing roller decreases less (or not at all) with decreasing height in the upper area (the clothing wire facing the teeth of the clothing wire) and more in the lower area.
  • the clothing wire has an outer surface which closes the clothing wire (in the height direction) on the side facing away from the foot portion, and which also extends in the height direction. It is (often) at least one tooth
  • the outer surface extends substantially in the longitudinal direction (Z) and the width direction (B). In the tooth flanks, however, the outer surface has a gradient inclined in the vertical direction.
  • the two sections are on the
  • At least one tooth typically offset in the longitudinal direction, arranged.
  • Tooth conditional gap occurs.
  • the two sections the entire (or almost the entire) height of the sheet section can be detected.
  • the two sections can be arranged offset from one another in the longitudinal direction (without any problems), since wire-set wires are produced from profiled wires whose cross-sectional profiles remain practically the same over their length.
  • the at least one first and the at least one second section can also be located at one point in the longitudinal direction of the clothing wire, ie, they are arranged above one another in the vertical direction as described above. This is possible in cases where there are no hollow (punched out) areas below the relevant tooth tip, ie, when the connecting line from the (At least one) first to (at least one) second portion extends completely in the material of the clothing wire.
  • Leaf portion side surface ranging from the maximum height of the sheet portion to a position which is 2%, preferably 5%, particularly preferably 10% of
  • Leaf section side surface is composed of at least two flat surface sections.
  • the at least one blade portion side surface (of the clothing wire) has at least two planar surface portions which are straight in the plane defined by the width and height directions.
  • the two surface portions preferably follow each other in the height direction (close to each other), and include in the plane which is spanned by the width and height direction, an angle (not equal to 0 °).
  • Surface portion preferably adjoin one another in a height range which is between 5/10 and 9/10, preferably 2/5 and 4/5 of the total height of the
  • Leaf section lies.
  • the invention is particularly advantageous for (fine) clothing wires having comparatively low blade sections, i. with heights of the leaf sections (alternatively: the teeth), which are in a range of 0.3 to 1 mm.
  • trim wires are commonly used for the production of staple fiber yarns, e.g. made of cotton and / or synthetic fibers used.
  • trim wires are used, which can have blade sections with a height of up to 3 (in exceptional cases up to 4) mm.
  • the portion farthest from the root portion usually has a height extent (h-direction extent) of 0.1 to 0.5 mm, preferably 0.2 to 0 , 3 mm.
  • This preferably flat portion preferably begins at most 5/100 mm or 1/10 mm below the tooth tip, ie, the upper
  • Height value of the at least one first section is at most 5/100 mm or 1/10 mm smaller than the maximum value (the height) of the sheet section.
  • Sheet section avoided that set the wires with fibers.
  • the at least one first section (the section in which the width of the first section
  • the at least one Blattabêtstress Type to the Lot on the demanding ground Stage usually has an angle of less than 5 °, preferably 0 ° -2 °.
  • the (at least one) first section of the (at least one) leaf section side surface can therefore also run parallel to the solder on the foot base since 0 ° is also possible.
  • the at least one second section of the at least one leaf section side surface usually has an angle to the solder on the foot base that is greater than 6 °, but preferably greater than 8 °. Usually, this angle is less than 15 °, preferably less than 12 °.
  • the sections of the at least one leaf section side surface in the plane which is spanned by the width and height directions may be curved.
  • Blade side surface bent, preferably concave (viewed from the outside). Bent means there are no kinks in the section. Kinks are points where discontinuities or singular points occur in the slope (of the section).
  • curved surface portions can be compared to conventional clothing wires a comparatively high efficiency of
  • Carding process can be obtained longer than with the use of conventional clothing wires. At the same time, it can also be avoided that the clothing passages formed by the clothing wires become clogged with fibers.
  • a height range between 5/10 and 9/10, preferably 3/5 and 4/5 of the total height of the sheet section selected. Runs the whole
  • FIG. 2 shows a cross section of a clothing wire with a
  • Leaf section side surface with two flat surface sections in which the width direction is oversized for illustrative purposes,
  • FIG. 3 shows a profile of a clothing wire with a leaf section side surface with two planar surface sections
  • FIG. 4 shows a cross section of a clothing wire with a
  • Leaf section side surface with four flat surface sections in which the width direction is oversized for illustrative purposes,
  • FIG. 5 shows a profile of a clothing wire with a leaf portion side surface with four flat surface portions
  • Fig. 6 a cross section of a clothing wire with a concave curved
  • Fig. 7 a profile of a clothing wire with a concave curved
  • Fig. 8 Determination of slopes of contours with respect to the plane which runs in the height H and in the width direction B.
  • Fig. 9 sheet section and selecting the position of the first and second
  • Fig. 1 1 first form of the second leaf portion side surface
  • FIG. 12 second form of the second leaf section side surface.
  • a clothing wire shown in Fig. 1 consists of a
  • Foot portion 1 which has a base 2 and two side surfaces 3, and a leaf portion 4 adjacent to the foot portion 1, a first
  • Leaf portion side surface 5 and a second sheet portion side surface 6 has.
  • the leaf section 4 is on the side facing away from the foot section 1 (upward towards) bounded by an outer surface 7 which extends along a serrated path up and down such that teeth 8 are formed.
  • the clothing wire extends in the longitudinal direction Z, its height extends in the height direction H and its width extends in the width direction B (B is perpendicular to both Z and H).
  • Minimum height h min and the maximum height h max corresponds to the total height H max of the leaf section.
  • the second leaf section side surface 6 extends (from manufacturing tolerances
  • the first leaf portion side surface 5 is composed of a first portion 10 located further up the blade portion 4 (which is farther from the foot portion 1), and a second portion 11 located farther down the blade portion 4 (which is closer to the foot portion) 1 lies) together.
  • the comparatively flat, rounded transition region 10 between the foot section 1 and the blade section 4 is not attributed to the blade section 4.
  • the first section 10 runs virtually parallel to the plane which is spanned by the longitudinal direction Z and the height direction H (correspondingly also parallel to the second leaf section side surface 6), ie, its pitch dh / db is infinitely large.
  • the first section 10 may also include a small angle of at most 2 ° with the height direction H (ie dh / db assumes a finite value) and, apart from manufacturing tolerances, run parallel to the longitudinal direction Z.
  • the second section 1 1 runs (apart from manufacturing tolerances) also parallel to the longitudinal direction Z, but includes, compared to the first section 10, with the height direction H a much larger angle of 8 ° to 12 °.
  • the first section 10 is steeper than the second section 11.
  • a steep slope generally means that the magnitude of the derivative dh / db is large. In a flat course, accordingly, the amount of the derivative dh / db is small.
  • the sheet section 4 Due to the particular geometry of the sheet section 4, its width B increases from above, e.g. starting from one of the tooth tips 12 (in fact, the tip is a short edge), first with decreasing height (i.e., toward the foot portion) very slowly (or not at all). From the transition point 13, at which the first section 10 merges into the second section 11, the width of the leaf section 4 then increases more rapidly (or even at all) with decreasing height.
  • the property of the Garniturdrahts that from the top, the width of the sheet portion 4 increases only slower and grows down the width of the sheet portion 4 faster, is essential to the invention. It is shown by a variety of advantageous embodiments thereof. This of course applies only to those areas of the clothing wire, on which still the material of the original profile is present, i.e., at which no material was punched out.
  • FIG. 2 the cross section of the clothing wire shown in Fig. 1 and in Fig. 3, the associated output profile (corresponds to the clothing wire without teeth) is shown.
  • the sectional plane (of the cross section) extends in the width direction B and the height direction H.
  • the width direction B is shown oversized (ie, the total width B max of the clothing wire is in FIG.
  • the first section 10 (in the relevant sectional plane) is delimited by the end points 14 and 15 and the second section 11 is delimited by the end points 15 and 16.
  • the first secant 17 the one along the first
  • Section 10 (ie by the end points 14, 15 of the first section 10) in the Section plane, which is spanned by the width direction B and the height direction H, has a greater amount of slope than the second secant 18, in the same plane and along the second portion 1 1 (by the end points 15, 16 of the second portion 1 1 ) runs.
  • FIG. 4 shows the cross-section of a clothing wire (and FIG. 5 the associated profile) in which the first blade section side surface 5 is made of four planes
  • the highest lying (furthest from the foot section 1) flat surface portion is selected, which limits (in the present sectional plane) of the end points 20 (with a height value h) and 21 (with a height value hi 2 ) becomes.
  • the second section 1 the second highest lying flat surface portion is selected, which is bounded by the end points 23 (with a height value h 2 i) and 24 (with a height value h 22 ).
  • the first secant 22 passes through the end points 20 and 21, the second secant 25 through the
  • Both secants 22, 25 extend in the plane which is spanned by the width direction B and the height direction H. Again, the secant 22 has a greater amount of slope than the secant 25, i.e., the
  • Height value h 3 is (at a distance in height direction H of) about 1/8 of
  • Elevations or indentations are located in this area.
  • FIG. 6 shows the cross section of a clothing wire (and the associated profile in FIG. 7), in which the first leaf section side surface 5 has a concave curve (without kinks) (seen from the outside). Also in FIG. 6, as previously shown in FIGS. 2 and 4, the width direction B is exaggeratedly large, so that the viewer has different angles between the Lot 19 and the
  • a height H is infinitesimal smaller
  • Area section 26 (punctiform with respect to the selected section plane) selected. Instead of the usual along a flat portion extending secant (in the plane defined by the width and height direction) here enters the tangent 27 to the first leaf portion side surface 5 in the surface section / point 26.
  • the second section 1 1 is in an analogous manner through the point 29 formed, wherein the tangent 30 occurs in place of the secant along a flat portion.
  • the slope of the tangents of the derivative dh / db in the respective point corresponds (analogous to the secants in question).
  • the tangent 27 has a greater amount of slope dh / db than the tangent 30, ie, the tangent 27 includes a smaller angle cd with the perpendicular 19 on the foot base 2 than the tangent 30 (angle a2 ).
  • first leaf portion side surfaces 5 are shown in the plane, which is spanned by the height H and in the width direction B.
  • the one first leaf section side surface 5 extends completely curved in the respective plane 31, the other first leaf section side surface 32 is composed of two flat surface sections 33, 34 together.
  • the width direction B is again shown oversized.
  • the first portion 10 may be the surface portion 33 that extends between the coordinates (bn, h) and (bi 2 , h 12 ) and the second portion 1 1 as the surface portion 34 between the points having coordinates (b2i, h 2 i) and (b 22, 22 h) extends, to be selected.
  • the slope of the secant through the end points of the first section 10 is then (hi 2 - h) / (bi 2 - b), the slope of the secant through the end points of the second section 1 is 1 (h 22 -h 2 i) / (b 22 -b 2 i).
  • the slope of the first section 10 is equal to the derivative dh / dh at the point bn (or at the point bi 2 , since the two end points of the infinitesimal small portion 10th
  • the slope of the second portion 1 1 is equal to the derivative dh / db at the point b 2 i (or b 22 ).
  • Fig. 9 shows a tooth 8, the height of which over the total height H max of
  • the tooth In the area of the tooth tip 12, the tooth has a first flat surface section 35, which runs steeper, and further below, a second planar surface section 36, which runs more flat.
  • the two surface portions 35, 36 adjoin the
  • Either a first section 1 10a running between the height values h and hi2 and a second section 1 1 1 (extending between the height values h 21 and h 22 ) arranged at the same extension zi in the longitudinal direction Z can be selected , Or, a first section 110b running between the height values h'n and h'i 2 and the second section 1 1 1 can be selected, the two sections 1 10b, 1 1 1 being at different extensions zi, z 2 are arranged in the longitudinal direction Z.
  • the foot region 1 can be formed such that adjacent wire sections engage in one another (linked version).
  • the slopes of the side walls 38 of the foot area are not the subject of this application.
  • FIGS. 11 and 12 embodiments of the second embodiment are shown
  • Leaf portion side surface 6 extends approximately mirror-symmetrically sch to the first leaf portion side surface 5.
  • Fig. 12 shows a leaf portion side surface 6, which is slightly inclined in the height direction H.
  • FIG. 13 shows that the at least one leaf section surface 5 of the clothing wire, which exhibits the feature essential to the invention, can also lie on the "other side" of the clothing wire 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un fil métallique de garniture de carde, destiné à être monté sur un tambour de cardage d'une cardeuse, qui possède une portion de pied (1) et une portion de lame (4). Sur le fil métallique de garniture de carde, la valeur de la pente dh/db de la hauteur (h) en fonction de la largeur (b) d'au moins une première portion (10) d'au moins une surface latérale de la portion de lame (5, 6) est supérieure à la valeur de la pente dh/db d'une deuxième portion (11) de ladite surface latérale de la portion de lame (5, 6). La deuxième portion (11) est plus proche de la portion de pied (1) que la première portion (10). Le signe de la pente dh/db est le même. Dans une zone qui s'étend jusqu'à un écart en hauteur maximum de 1/8 de la hauteur totale de la portion de lame au-dessous de ladite deuxième portion (11), ladite surface latérale de la portion de lame (5, 6) ne doit comporter aucune grosseur ni aucun creux qui provoque un changement de signe de la pente dh/db.
PCT/EP2015/055057 2014-03-12 2015-03-11 Fil métallique de garniture de carde et procédé de fabrication de nappes de fibres discontinues WO2015135982A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020167027713A KR101760664B1 (ko) 2014-03-12 2015-03-11 톱니형 와이어와 천연 섬유 플리스 제조 방법
CN201580013429.7A CN106460246A (zh) 2014-03-12 2015-03-11 针布线材和用于生产短纤维非织造织物的方法
JP2016557078A JP2017512265A (ja) 2014-03-12 2015-03-11 布用ワイヤ及び短繊維不織布を製造するための方法
US15/125,547 US20170002483A1 (en) 2014-03-12 2015-03-11 Clothing wire and method for producing staple fibre nonwovens
EP15711095.8A EP3117033A1 (fr) 2014-03-12 2015-03-11 Fil métallique de garniture de carde et procédé de fabrication de nappes de fibres discontinues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14159263.4A EP2918710A1 (fr) 2014-03-12 2014-03-12 Garniture de carde et procédé de fabrication d'un non-tissé de fibres discontinues
EP14159263.4 2014-03-12

Publications (1)

Publication Number Publication Date
WO2015135982A1 true WO2015135982A1 (fr) 2015-09-17

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PCT/EP2015/055057 WO2015135982A1 (fr) 2014-03-12 2015-03-11 Fil métallique de garniture de carde et procédé de fabrication de nappes de fibres discontinues

Country Status (6)

Country Link
US (1) US20170002483A1 (fr)
EP (2) EP2918710A1 (fr)
JP (1) JP2017512265A (fr)
KR (1) KR101760664B1 (fr)
CN (1) CN106460246A (fr)
WO (1) WO2015135982A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597802B1 (fr) * 2014-05-09 2023-12-20 Groz-Beckert KG Garniture de carde faite de bandes métalliques et son procédé de fabrication
DE102016114622A1 (de) * 2016-08-08 2018-02-08 TRüTZSCHLER GMBH & CO. KG Sägezahndraht
EP3470214B1 (fr) * 2017-10-10 2021-06-16 Groz-Beckert KG Dispositif et procédé de fabrication d'un support comportant une pluralité de faisceaux de fibres
CN112226855B (zh) * 2020-11-13 2021-09-03 江阴市达越无纺布有限公司 一种细质无纺布制造用均匀下料及夯实装置

Citations (4)

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DE1944251U (de) * 1966-05-25 1966-08-11 Gustav Damgaard Saegezahndraht zum aufziehen auf reisswalzen von textilmaschinen.
EP1408142A1 (fr) * 2002-10-10 2004-04-14 Graf + Cie Ag Fil de fer à dents de scie pour garniture de carde
WO2006136480A1 (fr) * 2005-06-24 2006-12-28 Nv Bekaert Sa Rouleau de traitement pour fibres comportant un revetement dur
EP2567010A1 (fr) * 2010-05-04 2013-03-13 NV Bekaert SA Profil de fil métallique pour garniture de carde

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US3391429A (en) * 1966-03-14 1968-07-09 Nagoya Metallic Card Clothing Metallic wire for card clothing
JPS5681982U (fr) * 1979-11-30 1981-07-02
US4643367A (en) * 1985-05-10 1987-02-17 John D. Hollingsworth On Wheels, Inc. Card wire winding tool and method
DE3730295A1 (de) * 1987-09-10 1989-03-23 Fritz Stahlecker Garnitur fuer eine aufloesewalze mit einer vielzahl von zaehnen
DE3730297A1 (de) * 1987-09-10 1989-03-23 Fritz Stahlecker Garnitur fuer eine aufloesewalze
US5096506A (en) 1988-11-18 1992-03-17 Hollingsworth John D Method for making card clothing
DE4019151A1 (de) * 1990-06-15 1991-12-19 Truetzschler & Co Saegezahnwalze mit schraubenlinienfoermig verlaufender saegezahngarnitur
DE4300536A1 (de) * 1993-01-12 1994-07-14 Fritz Stahlecker Garniturring für Auflösewalzen von OE-Spinnmaschinen
US6185789B1 (en) * 1997-03-03 2001-02-13 John D. Hollingsworth On Wheels, Inc. Metallic clothing for carding elements
GB2382355B (en) * 2001-11-21 2006-06-21 Indian Card Clothing Company L Varying geometry metallic card clothing wire
CN201512617U (zh) 2009-05-26 2010-06-23 光山白鲨针布有限公司 棉纺清梳联道夫针布

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944251U (de) * 1966-05-25 1966-08-11 Gustav Damgaard Saegezahndraht zum aufziehen auf reisswalzen von textilmaschinen.
EP1408142A1 (fr) * 2002-10-10 2004-04-14 Graf + Cie Ag Fil de fer à dents de scie pour garniture de carde
WO2006136480A1 (fr) * 2005-06-24 2006-12-28 Nv Bekaert Sa Rouleau de traitement pour fibres comportant un revetement dur
EP2567010A1 (fr) * 2010-05-04 2013-03-13 NV Bekaert SA Profil de fil métallique pour garniture de carde

Also Published As

Publication number Publication date
EP2918710A1 (fr) 2015-09-16
JP2017512265A (ja) 2017-05-18
CN106460246A (zh) 2017-02-22
EP3117033A1 (fr) 2017-01-18
US20170002483A1 (en) 2017-01-05
KR101760664B1 (ko) 2017-08-04
KR20160122854A (ko) 2016-10-24

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