US3762144A - Apparatus for separating fibers from fibrous sliver - Google Patents

Apparatus for separating fibers from fibrous sliver Download PDF

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Publication number
US3762144A
US3762144A US00128901A US3762144DA US3762144A US 3762144 A US3762144 A US 3762144A US 00128901 A US00128901 A US 00128901A US 3762144D A US3762144D A US 3762144DA US 3762144 A US3762144 A US 3762144A
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Prior art keywords
roller
sliver
feed roller
circumferential surface
carding
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US00128901A
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English (en)
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S Didek
Z Svec
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Vyzkumny Ustav Bavlnarsky AS
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Vyzkumny Ustav Bavlnarsky AS
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    • 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

  • ABSTRACT [30] Foreign Application Priority Data
  • a rotary carding roller receives a fibrous sliver which Mar. 27, 1970 Czechoslovakia 2032/70 moves from a pp y device in a predetermined p towards the carding roller.
  • a feed roller is located in [52] US. Cl... 57/58.9l, 19/105, 57/5895 this path and receives from the supply device fibrous [51] Int. Cl D0lh 1/12 sliver on its circumferential surface, to q n ly 53 Field f Search. 57/50 5339-5895; release the sliver to the carding roller.
  • Contact means 19/105 defines with the feed roller a nip zone upstream of the carding roller and operative for effecting contact of the [56] References Cit d fibrous sliver with the feed roller in a sense resulting in UNITED STATES PATENTS travel of the sliver on and with the circumferential sur- 2,912,720 11 1959 Vandergriff et a1. .1 19 105 x face from the mp Zone to the cardmg roller 3,439,488 4/1969 Bucil et a1 57/5895 18 Claims, 18 Drawing Figures PATENTEW 3.152.144
  • PATENTEUIIII 2m 3.762.144
  • the present invention relates generally to fiber separating apparatus, and more particularly to an apparatus for separating fibers from fibrous formation such as.- sliver or the like.
  • break-spinning machines which process fibers in so-called spinning chambers in form of a ribbon of fibers deposited on an internal collecting surface of the spinning chamber, it is necessary that the fibers be deposited on this collecting surface in form of a uniform fibrous ribbon which is continuous.
  • the composition and quality of the thus deposited fibrous ribbon influence to a very considerable extent the quality of the resulting yarn which is spun in the rotary spinning chamber by twisting the fibrous ribbon and withdrawing it from the spinning chamber continuously.
  • these characteristics also effect the rate of breakage, that is the rate at which severing of the ribbon or of the yarn being withdrawn occurs, and this breakage which results inthe frequent necessity for stopping the spinning processimpairs the quality of the final product.
  • a fiber separating apparatus is provided. It is already known to have such apparatus which utilizes a rotary carding cylinder having a toothed circumferential surface to which fibrous sliver or structure is fed by a feeding roller, to be engaged by the teeth of the carding roller and separated into its constituent fibers. There is usually provided opposite the feed roller a pressure lip which clamps the sliver. Such pressure lip has an edge over which the sliver is bent and which is located close to the circumferential surface of the carding roller.
  • the known constructions have the disadvantage in that fibers are engaged by the surface of the carding roller closely adjacent to the clamping edge of the pressure lip. This means that engagement with the fibers takes place while they are yet under the influenceof the pressure exerted by the pressure lip so that quite frequently the fibers are broken or snapped.
  • Those skilled in the art will realize the disadvantages of this, because the shorter the fibers are in the fibrous ribbon which is converted into a yarn, the less-will be the quality of the resulting yarn; conversely, the longer the fibers the better will be the resulting yarn.
  • uneven fiber separation takes place and, on the other hand, fiber tufts are carded or combed out which will form an irregular ribbon on the fiber collecting surface of the spinning chamber.
  • This results in a low-grade yarn of uneven structure. In fact, because not all of the fibers are duly aligned, with many of them being creased, crimped, or bent, the formation of such undesirable fiber tufts is even facilitated under these circumstances.
  • one feature of the invention resides in an apparatus for separating fibers from fibrous sliver, in a combination which briefly stated comprises a rotary carding roller and a supply device supplying fibrous sliver for movement in a predetermined path towards the carding roller.
  • a rotatable feed roller is located in this path and has a circumferential surface, being adapted to receive fibrous sliver from the supply device and to release such sliver to the carding roller.
  • contact means which defines with the feed roller a nip zone upstream of the carding roller, serving for effecting contact of the fibrous sliver with the feed roller in a sense which results in travel of the sliver on and with the circumferential surface from the nip zone to the carding roller.
  • the contact means utilizes a pressure element which is preferably arranged opposite the circumference of the feed roller and adjustable along a circular path concentric with the axis of the feed roller. This makes it possible to permit an adjustment in the length of the path on which the sliver will travel on and with the surface of the feed roller before it is engaged by the carding roller.
  • An additional pressure element may also be provided, similarly being adjustable in a circular path concentric to the axis of the feed roller, and providing on the surface of the feed roller a fiber directing zone for guiding the fibrous sliver on the feeding surface of the feed roller, such zone being followed by a free encircling zone within which the fibrous sliver passes along the circumference of the feeding surface of the feed roller but freely rather than being engated therewith, before it enters engagement with the carding roller.
  • the pressure elements can only be configurated as spring-loaded pressure rollers or segments which can be variously profiled. The manner of their cooperation with the feeding surface of the feed roller, as well as their support arrangements, may vary.
  • FIG. I is a somewhat diagrammatic elevational section of an apparatus embodying the present invention.
  • FIG. 2 is a diagrammatic detail view of the apparatus shown in FIG. 1, in an enlarged scale and in a sectional elevation;
  • FIG. 3 is a view similar to FIG. 2 but illustrating a further embodiment of the invention.
  • FIG. 4 is a fragmentary view analogous to FIG. 3 illustrating yet an additional embodiment of the invention.
  • FIG. 5 is a view similar to FIG. 4 but illustrating a further embodiment of the invention.
  • FIG. 6 is a diagrammatic sectional detail view, onan enlarged scale, taken on line AA of FIG. 1;
  • FIG. 7 is a view similar to FIG. 6 but illustrating a further embodiment
  • FIG. 8 is a view similar to FIG. 4 illustrating another embodiment of the invention.
  • FIG. 9 is a view similar to FIG. 8 illustrating a modified embodiment of the invention.
  • FIG. 10 is a view similar to FIG. 9 showing yet another embodiment of the invention.
  • FIG. II is a section taken on line A-A of FIG. 8;
  • FIG. 12 is a view similar to FIG. 11 showing a modified embodiment of the invention.
  • FIG. H3 is a view resembling FIG. 11 but showing still a further embodiment of the invention.
  • FIG. 14 is a view similar to FIG. 9 showing another embodiment of the invention.
  • FIG. 15 is still an additional view similar to FIG. 14 but illustrating a modified embodiment
  • FIG. 16 is a view taken on line A-A of FIG. 14;
  • FIG. 17 is a view similar to FIG. 16 illustrating a modification
  • FIG. I8 is a view similar to FIG. 17 illustrating still a further embodiment.
  • FIG. 1 it will be seen that we have shown our novel apparatus incorporated in a break-spinning machine having a rotary spinning chamber 1 of well known construction.
  • Our fiber separating apparatus is mounted in the housing 2 of the spinning machine and essentially comprises a rotary carding cylinder 3 having a toothed circumferential surface in known manner.
  • a feed roller 4 and a cooperating pressure roller 5 are provided.
  • a sliver or similar fibrous formation to be separated into its constituent fibers is supplied to the nip between the feed foller 4 and the pressure roller 5 by means of a condenser 7 of known construction.
  • the fibers are separated and supplied on the inner circumferential fiber collecting surface 10 of the spinning chamber which rotates about the indicated upright axis, they slide to the fiber-collecting ribbon-forming surface 11 from where the ribbon is withdrawn in twisted condition as a yarn in the direction of the arrow.
  • the yarn is indicated with reference numeral 8 and is being withdrawn by a pair of cooperating withdrawal rollers 9 which supply it to a non-illustrated take-up device.
  • the spinning chamber 1 forms subatmospheric pressure in its interior when it rotates, in that air is ejected under the influence of cen trifugal force through the apertures shown in the circumferential wall of the spinning chamber 1. This serves to aspirate the separated fibers into the interior of the spinning chamber.
  • the carding roller 3 is keyed or otherwise nonrotatably mounted on a rotary shaft 12 for rotation with the latter. Its outer circumferential surface is provided with wires, pegs, teeth or the like which are identified with reference numeral 13 and which engage the sliver and separate it into its constituent fibers. Roller 3 is mounted in a chamber 14 of housing 2, and a channel 15 extending tangentially to the circumference of the roller 3 communicates with the chamber 14 as well as .with the interior of the rotary spinning chamber 1, as
  • a drive for rotating the shaft 12 has not been shown; it is conventional and may be in form of the main drive belt of the spinning machine.
  • Feed roller 4 is mounted on a shaft 18 which is positively driven in rotation and pressure roller 5 is either mounted for idling movement on a pin 19 which is slidably mounted in slots 20 in arms 21 which are angularly adjustable about the axis of shaft 18 and can be arrested in a desired position by non-illustrated conventional means.
  • the feed roller 5 could also be driven by known means so as to rotate either in clockwise or in counterclockwise sense.
  • Pressure roller 5 is resiliently biased towards the feed roller 4 by biasing means, here illustrated in form of springs 22 located in the respective slots 20 and adjustable by means of screw 23 to exert more or less pressure.
  • biasing means here illustrated in form of springs 22 located in the respective slots 20 and adjustable by means of screw 23 to exert more or less pressure.
  • a bracket 24 supporting the stationary condenser 7 may be provided on the arms 21.
  • the present invention has been provided.
  • FIG. 2 shows the apparatus of FIG. 1, but on an enlarged scale.
  • a cylindrical baffle plate on the arms 21 and serves for preventing the feed roller 4 and the sliver 6 thereon from becoming soiled.
  • the contact point of the carding cylinder 3 with the fibrous sliver is generally designated with A
  • the length of the path over which the sliver will encircle the circumference of the feed roller 4 is generally designated with reference character B. While the area A is non-variable, the length B can be varied in accordance with the present invention, by displacing the nip between the feed roller 4 and the pressure roller 5 where the sliver 6 is engaged.
  • FIGS. 1 the contact point of the carding cylinder 3 with the fibrous sliver
  • B the length of the path over which the sliver will encircle the circumference of the feed roller 4
  • the length B can be varied in accordance with the present invention, by displacing the nip between the feed roller 4 and the pressure roller
  • rollers 3 and 4 rotate in identical direction, by contrast to the FIGS. 1 and 2 embodiment.
  • the pressure means which defines the nip with the feed roller 4 need not always be in form of a roller, such as the roller 5.
  • the pressure element which engages the feed roller 4 and defines the aforementioned nip therewith is in form of a concave pressure segment 27 engaging a portion of the feed roller 4 circumference on a mating curved surface.
  • the pressure element is constituted by a convex pressure segment 28 which engages the feed roller 4 along a line to form the nip therewith.
  • the pressure segment 27 of concave configuration is mounted on a pin 29 which is received in slots 30. These are formed in oscillating arms 31 which are adapted to oscillate about a pin 32 the position of which can be adjusted in a circular guideway 33 concentric with the circumference of the feed roller 4. It is evident that by displacing the pin 32 the angular position of the nip on the feed roller circumference can similarly be displaced.
  • a bracket 24 holding the condenser 7 is also provided on the pin 32, as well as a helical spring 34 which resiliently urges the arms 31 and therefore the pressure segment 27 against the circumference of the feed roller 4.
  • the feed roller 4 may be without flanges, or it may be provided with end flanges 46 as shown in FIG. 7.
  • the provision of flanges is preferable because this provides for a better guidance of the sliver.
  • the operating width of the feeding surface 35 on the feed roller 4 which feeding surface incidentally can be smooth or fluted, knurled or the like corresponds substantially to that of the circumferential surface on the carding roller 3 as well as of the respective pressure element 5, 27 or 28.
  • nip area of the pressure element such as the roller 5 or the segments 27 or 28; at the other side it is defined by an element which produces what we also choose to call a control nip. It should be understood that the sliver 6 will continue to encircle the surface 35 of the feed roller 4 even after it has left the control nip which is produced in accordance with the embodiments to be described.
  • control nip for the fibrous sliver is obtained by providing a control pressure roller 36 which can be supported and resiliently biased against the surface 35 of the roller 4 in the same manner in which the pressure roller 5 of FIGS. 1 and 2 is biased in that sense.
  • the roller 36 is mounted on a pin 16 supported in slots 20 which in turn are formed in arms 21. These arms are mounted so as to be displaceable about shaft 18 which also mounts the feed roller 4; and springs 22 received in the slots 20 and being adjustable by means of screws 23, provide resilient pressure.
  • the fiber directing zone C is provide between the nip area defined by the feed roller 4 and the pressure roller 5, and the control nip area defined by the pressure roller 4 and the control pressure roller 36.
  • the zone C is followed by a zone B in which the fibrous sliver loosely encircles the surface 35 of the feed roller 4 prior to reaching the contact area A where it is engaged by the carding roller 3.
  • the sliver 6 can be controlled over an enlarged portion of its path so that the supply of sliver can be accommodated to a greater extent to the conditions of the material to be processed, and this in turn advantageously affects the quality of the entire spinning process and the resulting product.
  • FIG. 9 we have illustrated an embodiment in which the pressure roller 5 and the control pressure roller 36 are supported by their respective pins 19 in slots 30 of arms 31 swingably about pins 32 and 32. These pins are displaceable and arrestable in requisite position in a curvilinear guideway 33 which is concentric with the axis of feed roller 4.
  • the pressure exerted by arms 31 and therefore by th rollers and 36, respectively, is obtained by helical springs 34 which make the rollers bear upon the feed roller 4.
  • the bracket 24 again supports the condenser 7, but here is mounted on a pin 32" so that it can be displaced along the curvilinear guideway 33 in the same manner as the pins 32 and 32'.
  • FIG. 10 we have shown an embodiment in which pressure roller 5 is arranged in the same manner as discussed before in FIGS. 1 and 2, whereas the control pressure roller 36 is idle on a pin 37 mounted in double armed levers 38 which are swingable about a journal 39 secured in housing 2.
  • a spring 46 is received in a recess 41 also provided in the housing 2 and forces the control pressure roller 36 towards the surface of the feed roller 4.
  • the embodiment of FIG. 10 does not provide for adjusting the position of the control pressure roller 36 with reference to the surface of the feed roller 4.
  • the position of the pressure roller 5 and consequently the range of the fiber directing zone C can be adjusted as previously described.
  • FIGS. 11, 12 and 13 show how the control pressure roller 13 can be differently configurated.
  • the roller 36 is simply of cylindrical configuration, whereas in FIG. 12 it is provided at its opposite axial ends with radial flanges 50.
  • maximum control pressure is obtained, whereas in FIG. 12 a much smaller and in fact minimal control pressure can be utilized because of the more definite guidance of the type of sliver between the flanges 50.
  • the control pressure roller 36 is provided with a shoulder 51 at each axial end so that the roller 36 can enter between mating flanges 46 of the feed roller 4.
  • maximum control pressure can also be exerted and the supply rate of fibrous sliver is identical in all three embodiments.
  • FIGS. 14 and 15 show that other types of pressure elements can be utilized in place of the heretofore described control pressure rollers, for obtaining the control pressure defining the end of the fiber directing zone C.
  • FIG. 14 shows the pressure roller 5 and the condenser 7 to be arranged so that they can positionly be adjusted in the curvilinear guideway 33 in the manner described with reference to FIG. 9.
  • a control pressure segment 42 is provided which exerts the control pressure and is secured to an extremity of a rod member 43 which is mounted so that it can reciprocate in a bore 4% provided in a block 2'.
  • a spring 45 bears upon the rod 43 to urge the latter and thereby the segment 42, resiliently towards the surface of the feed roller 4.
  • control pressure segment 45 is of convex type, as opposed to the concave configuration of the control pressure segment 42 of FIG. 14.
  • the segment 45 engagesthe surface 45 of the feed roller 4 along a linearly configurated nip.
  • FIGS. 16, 17 and 18 finally disclose some modifications of the contact area between the control pressure segment 82 and the feed roller 4.
  • the control pressure segment 42 is provided with a bare or smooth surface and engages the outer circumference of the flanges 46 of the feed roller 4 only at its extremities.
  • the control pressure segment 42' is provided with flanges 47 the outer surfaces of which engage the outer surfaces of the flanges 46 on the feed roller 4.
  • the control pressure nip obtained on the sliver 6 between the segment 42 and the surface 35 of the feed roller 4 in this embodiment is less or looser than with the embodiment in FIG. 16.
  • segment 42' is provided with a shoulder 48 adapted to enter between the flanges 46 of the feed roller 4 so that the segment 42' can move closer to the active or feeding surface 35 of the roller 4 and thus reduce the thickness of the nip which it defines with the same.
  • the feed roller 4 together with the pressure element 5 (embodiment of FIGS. 1 and 2, for instance) supplies sliver 6 of fibrous material to the area A where it is engaged by the carding cylinder 3.
  • the sliver 6 is supplied from the nip between the feed roller 4 and the pressure element 5 and moves on the feeding surface 35 of the feed roller 4.
  • Sliver 6 either loosely encircles the surface 35 and forms the encircling zone B, or by means of the control pressure element 36 is may additionally have the so-called fiber directing zone C in which the sliver is exposed first to the pressure nip and then to the control pressure nip followed by the short encircling zone B Because the control pressure nip engages the fibers in sliver 6 subsequent to their engagement in the pressure nip, the so-called floating fibers mentioned earlier and which are shorter than the average stable lengthare exposed to a higher interfibrous friction whereby the carding cylinder 3 is prevented from withdrawing a randomly accumulated fiber tuft all at once and is instead compelled to withdraw the fibers successively.
  • Fibers 52 having been carded out of the sliver 6 are passed through the outlet channel 15 to the surface 10 of the spinning chamber 1 where they are finally deposited by sliding over the surface 10 on the collecting surface 11. On this they are formed into a ribbon which is twisted to assume the form of a yarn 8 which is drawn off by means of the withdrawal rollers 9.
  • the linear contact of the pressure element 5 in FIGS. 1-3 and 5-7 can be replaced by the area contact afforded by the pressure element 27 in FIG. 4.
  • the force in the nip between the feed roller 4 and the pressure element 5 and 27, respectively can be regulated by varying the cross-sectional configuration of the pressure element and 27 as shown in FIGS. 6 and 7.
  • the fiber directing zone C is obtained which is defined between their respective control nip with the feeding surface 35 of the feed roller 4 and the pressure nip exerted by the feeding surface 35 of the pressure roller 4 and the pressure element 5.
  • the existence of this fiber directing zone C improves the control over the guidance of the sliver 6 on the feeding surface 35 of the feed roller 4 and the zone C is followed by the shorter zone B, in which the sliver loosely encircles the surface 35 of roller 4 before it reaches the area A where it is engaged by the carding roller 3.
  • control nip may assume the function of the ordinary nip in which the fibers are clamped.
  • rate of contact afforded by the control nip can be controlled not only by regulating the force of the pressure springs 22 or 45 but also by varying the profile of the pressure element 36 as shown in FIGS. 11-13, or 42 as shown in FIGS. 16-18.
  • the length of the fiber directing zone C and the length of the zone B can be controlled by displacing both the pressure element 5 and the additional control pressure element 36 along the circumference of the feed roller 4 as shown in FIGS. 8 and 9, and the length of the zone C can also be varied by changing the position of the pressure element 5 as shown in FIGS. l0, l4 and in the latter case the length of the encircling zone B remains constant.
  • control pressure elements 36, 42 and 49 any of these elements can be simply disengaged in which case the sliver 6 will loosely encircle the surface 35 of the feed roller 4 along a longitudinally controllable zone.
  • the width of the control pressure elements 36, 42 and 49, respectively, as well as that of the pressure elements 5, 27 and 28, respectively, corresponds to the sum of the width of the feeding surface 35 and of the flanges 46 of the feed roller 4.
  • a rotary carding roller In an apparatus for separating fibers from fibrous sliver, in combination, a rotary carding roller; a supply device supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller and biasing means permanently urging said contact means towards said circumferential surface so as to define said nip zone therewith.
  • said displacing means comprising arms mounting said contact means for displacement circumferentially of said feed roller.
  • said circumferential surface of said feed roller having an axial length corresponding to that of said carding roller and of said contact means; and further comprising radially projecting flanges at opposite axial ends of said circumferential surface of said feed roller.
  • said contact means being a contact roller mounted for rotation about an axis parallelling that of said feed roller.
  • said contact means comprising a segment-shaped contact member.
  • a rotary carding roller supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having an axis of rotation and a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller, said circumferential surface contacting said sliver in said nip zone at one circumferential location of said feed roller and releasing the sliver in the vicinity of said carding roller at an other circumferentially spaced
  • a rotary carding roller supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having an axis of rotation and a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller, said circumferential surface contacting said sliver in said nip zone at one circumferential location of said feed roller and releasing the sliver in the vicinity of said carding roller at an other circumferentially spaced
  • a rotary carding roller supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having an axis of rotation and a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller, said circumferential surface contacting said sliver in said nip zone at one circumferential location of said feed roller and releasing the sliver in the vicinity of said carding roller at an other circumferentially spaced
  • a rotary carding roller supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having an axis of rotation and a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller, said circumferential surface contacting said sliver in said nip zone at one circumferential location of said feed roller and releasing the sliver in the vicinity of said carding roller at an other circumferentially spaced
  • said mounting arm means being a double-armed lever mounted for displacement about a stationary journal; and said biasing means comprising a spring acting upon said lever in a sense tending to displace the same towards said circumferential surface about said journal.
  • said mounting means comprising a curvilinear guideway extending circumferentially of said feed roller, pin means on said mounting arms slidably received in said guideway, and a spring urging said mounting arms with said roller element toward said circumferential surface.
  • said contact roller element having at opposite axial ends thereof radially projecting flanges; and wherein said feed roller has additional flanges at its opposite axial ends and in engagement with said flanges of said roller element.
  • said feed roller having radial flanges at its opposite axial ends; and wherein said contact roller element has axially spaced shoulders which are moved between said flanges of said feed roller.
  • a rotary carding roller supplying fibrous sliver for movement in a predetermined path towards said carding roller; contact means proximal to said path upstream of said carding roller; a rotatable feed roller in said path adjacent said contact means and defining therewith a nip zone arranged to receive fibrous sliver from said supply device, said feed roller having an axis of rotation and a circumferential surface an arcuate portion of which extends from said nip zone downstream along said path to the vicinity of said carding roller and defines a sliver control zone in which the sliver travels in engagement with said circumferential surface from said nip zone to the vicinity of said carding roller, said circumferential surface contacting said sliver in said nip zone at one circumferential location of said feed roller and releasing the sliver in the vicinity of said carding roller at an other circumferentially spaced
  • segment-shaped element has shoulders located intermediate and each cooperating with one of said radial flanges of said feed roller.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00128901A 1970-03-27 1971-03-29 Apparatus for separating fibers from fibrous sliver Expired - Lifetime US3762144A (en)

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JP (1) JPS5415935B1 (it)
CS (1) CS152074B1 (it)
DE (1) DE2113180C3 (it)
FR (1) FR2083617B1 (it)
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Cited By (12)

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Publication number Priority date Publication date Assignee Title
US3918246A (en) * 1973-02-28 1975-11-11 Houget Duesberg Busson Sa D At Spinning
US3950929A (en) * 1973-10-17 1976-04-20 Daiwa Boseki Kabushiki Kaisha Method of feeding a sliver into a combing section of an open end spinning machine and a presser therefor
US3990225A (en) * 1973-10-24 1976-11-09 Vyzkumny Ustav Bavlnarsky Open-end spinning machine
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
US4050228A (en) * 1975-02-13 1977-09-27 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver supply apparatus for resolving rollers in open end spinning machines
US4067181A (en) * 1975-01-23 1978-01-10 Ernst Fehrer Fiber-disintegrating unit for a spinning machine
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
US4291438A (en) * 1979-02-17 1981-09-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber feeding roller of open-end spinning apparatus
US4926627A (en) * 1988-05-20 1990-05-22 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Device to feed and open a fiber sliver on an open-end spinning device
US4934029A (en) * 1989-04-26 1990-06-19 Cotton Incorporated Apparatus and method for removing a fiber fraction from seed cotton
US6061877A (en) * 1997-02-28 2000-05-16 Trutzschler Gmbh & Co. Kg Clothing for a roll advancing fiber material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH564104A5 (it) * 1972-09-18 1975-07-15 Vyzk Ustav Bavlnarsky
DE2614182C2 (de) * 1976-04-02 1985-03-28 Stahlecker, Fritz, 7347 Bad Überkingen Zuführeinrichtung für Offenend- Spinnaggregate
CS231114B1 (en) * 1982-09-29 1984-10-15 Frantisek Burysek Device for controlled removing of the end of fibre bundle from the range of stripping roll
SK277725B6 (en) * 1990-02-22 1994-09-07 Stanislav Didek Device for uniting of fibers in spin unit

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US2912720A (en) * 1957-05-13 1959-11-17 Lummus Cotton Gin Co Lint cotton cleaner
US3108330A (en) * 1961-06-08 1963-10-29 Crompton & Knowles Corp Fabric shredding apparatus
US3115683A (en) * 1960-01-21 1963-12-31 Whitin Machine Works Carding machines for textile fibres
US3335558A (en) * 1965-11-17 1967-08-15 Sliver supply device for spindleless spinning
US3360918A (en) * 1966-03-04 1968-01-02 Vyzk Ustav Bavlnarsky Arrangement for guiding staple fibers into a separator of a ringless spinning machine
US3411187A (en) * 1967-02-23 1968-11-19 Wellman Ind Feed roller arrangement to card licker-in
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3571859A (en) * 1968-04-16 1971-03-23 Vyzk Ustav Barlnarsky Fiber-processing apparatus
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine

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US2912720A (en) * 1957-05-13 1959-11-17 Lummus Cotton Gin Co Lint cotton cleaner
US3115683A (en) * 1960-01-21 1963-12-31 Whitin Machine Works Carding machines for textile fibres
US3108330A (en) * 1961-06-08 1963-10-29 Crompton & Knowles Corp Fabric shredding apparatus
US3335558A (en) * 1965-11-17 1967-08-15 Sliver supply device for spindleless spinning
US3360918A (en) * 1966-03-04 1968-01-02 Vyzk Ustav Bavlnarsky Arrangement for guiding staple fibers into a separator of a ringless spinning machine
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3411187A (en) * 1967-02-23 1968-11-19 Wellman Ind Feed roller arrangement to card licker-in
US3571859A (en) * 1968-04-16 1971-03-23 Vyzk Ustav Barlnarsky Fiber-processing apparatus
US3626681A (en) * 1968-08-08 1971-12-14 Toyoda Automatic Loom Works Ringless spinning machine

Cited By (12)

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Publication number Priority date Publication date Assignee Title
US3918246A (en) * 1973-02-28 1975-11-11 Houget Duesberg Busson Sa D At Spinning
US3950929A (en) * 1973-10-17 1976-04-20 Daiwa Boseki Kabushiki Kaisha Method of feeding a sliver into a combing section of an open end spinning machine and a presser therefor
US3990225A (en) * 1973-10-24 1976-11-09 Vyzkumny Ustav Bavlnarsky Open-end spinning machine
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
US4067181A (en) * 1975-01-23 1978-01-10 Ernst Fehrer Fiber-disintegrating unit for a spinning machine
US4050228A (en) * 1975-02-13 1977-09-27 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver supply apparatus for resolving rollers in open end spinning machines
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
US4291438A (en) * 1979-02-17 1981-09-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber feeding roller of open-end spinning apparatus
US4926627A (en) * 1988-05-20 1990-05-22 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Device to feed and open a fiber sliver on an open-end spinning device
US4934029A (en) * 1989-04-26 1990-06-19 Cotton Incorporated Apparatus and method for removing a fiber fraction from seed cotton
US6061877A (en) * 1997-02-28 2000-05-16 Trutzschler Gmbh & Co. Kg Clothing for a roll advancing fiber material

Also Published As

Publication number Publication date
DE2113180A1 (de) 1971-10-14
GB1350783A (en) 1974-04-24
JPS5415935B1 (it) 1979-06-19
DE2113180C3 (de) 1986-01-09
SU555181A1 (ru) 1977-04-25
FR2083617B1 (it) 1975-07-04
DE2113180B2 (de) 1980-02-28
FR2083617A1 (it) 1971-12-17
CS152074B1 (it) 1973-12-19

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