EP3289125A1 - Entonnoir à voile pour comprimer un voile de fibres, pourvu d'un élément de guidage - Google Patents

Entonnoir à voile pour comprimer un voile de fibres, pourvu d'un élément de guidage

Info

Publication number
EP3289125A1
EP3289125A1 EP16719048.7A EP16719048A EP3289125A1 EP 3289125 A1 EP3289125 A1 EP 3289125A1 EP 16719048 A EP16719048 A EP 16719048A EP 3289125 A1 EP3289125 A1 EP 3289125A1
Authority
EP
European Patent Office
Prior art keywords
fleece
guide
woven
fiber
funnel
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP16719048.7A
Other languages
German (de)
English (en)
Other versions
EP3289125B8 (fr
EP3289125B1 (fr
Inventor
Werner Schmolke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt GmbH
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 Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH
Publication of EP3289125A1 publication Critical patent/EP3289125A1/fr
Application granted granted Critical
Publication of EP3289125B1 publication Critical patent/EP3289125B1/fr
Publication of EP3289125B8 publication Critical patent/EP3289125B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • 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
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers

Definitions

  • Nonwoven funnel for compacting a Faserylieses with a guide element
  • the present invention relates to a fleece funnel for compacting a fibrous web, in particular on a track, carding machine or combing machine.
  • the fleece straightener has an input side which is oblong in the x direction and at which the spread fiber fleece enters the fleece funnel. In the z-direction to the input side, an output side is spaced at which the fibrous nonwoven emerges as a sliver from the web straightener. On the output side, an output port is arranged. At least one guide surface is arranged between the input side and output side for the nonwoven fabric in order to guide the nonwoven fabric flowing into the nonwoven funnel in the direction of the outlet opening.
  • a fleece straightener for band-forming textile machines is known.
  • the fleece funnel has a draw-off opening, through which a sliver emerges from the fleece funnel.
  • Impact and / or baffles are arranged on both sides of the discharge opening, wherein the nonwoven fabric is folded by the impact and / or baffles from two sides to the discharge opening. Between two baffles a Stufungs phenomenon is arranged.
  • a disadvantage of such a fleece funnel is that the nonwoven fabric, which flows from the two baffle and / or guide surfaces to the discharge opening, can slide over the discharge opening and only after an arc passes over the opposing impact and / or guide surface into the discharge opening.
  • a part of the nonwoven fabric thus cooperates with parts of the nonwoven fabric, which come from the respective opposite baffle and / or guide surface.
  • the two parts thereby hinder each other as it flows into the outlet opening.
  • the fiber fleece thus runs uncontrollably in the exhaust opening, whereby the quality of the emerging sliver decreases.
  • the object of the present invention is therefore to provide a guide element for a fleece funnel, which improves the quality of the emerging sliver.
  • a nonwoven funnel is proposed for compacting a nonwoven fabric, in particular on a stretch, carding machine or combing machine, which has an input side elongated in the x-direction, at which the spread nonwoven fabric enters the nonwoven funnel.
  • the nonwoven fabric emerges from the nonwoven funnel as a fiber sliver at an exit side which is at a distance from the entry side in the z-direction.
  • a Congresso réelle is arranged in the output side.
  • At least one guide surface is arranged between the input side and the output side in order to guide the nonwoven fabric flowing into the nonwoven funnel in the direction of the starting opening.
  • two guide surfaces, in each case adjacent to the réelleo réelle are arranged in the fleece funnel. These cause the actual funnel function.
  • these may converge toward the starting orifice, thereby redirecting the nonwoven fabric impinging on the fins toward the starting orifice.
  • the dimensions, in particular the diameter, of the starting opening preferably determine the degree of compression of the fiber fleece.
  • a guide element is arranged in a region between the inlet side and the outlet opening, which delimits a movement of the fiber fleece that is proportional in the x direction. Limiting the movement of the fibrous web as it comes from a baffle prevents adverse interaction with other portions of the fibrous web.
  • the parts of the fiber web coming from the respective guide surfaces are It is essentially prevented by the guide element from interacting with the respective other part of the fiber fleece.
  • the respective parts do not encounter each other head-on, which would lead to a disordered arrangement of the individual fibers in the non-woven fabric.
  • the guide element is a further element in the process of fiber compression.
  • the non-woven fabric first strikes the at least one guide surface, from where it is conducted in the direction of the exit opening.
  • the guide element forms a boundary, so that the nonwoven fabric more controlled, preferably without the parts of the nonwoven fabric from colliding with each other from different directions, flow into the outlet opening.
  • the introduction of the fiber fleece into the outlet opening is improved, which increases the quality of the emerging fiber sliver.
  • the guide element is arranged in such a way that, after the fiber web has been deflected in the direction of the exit opening through the guide surfaces, it prevents a collision of the fibers at least in the x direction.
  • the guide element is thus the actual compressor unit, which is formed here by the guide surfaces, downstream.
  • the fiber fleece is thus first compressed and then limited by the guide element at least in the movement in the x direction.
  • a further guide element may be arranged in a region between the inlet side and outlet opening, by means of which a movement of the fiber fleece that is proportional in the y direction is limited.
  • parts of the nonwoven fabric may loop in a yz plane over the exit opening. The loop buckles and flows uncontrollably into the outlet opening.
  • the loop can be directed in the opposite direction, in particular away from the exit opening, where more space is available in which the loop can expand. Then the loop leads into the exit opening. This prevents the non-woven fabric from buckling.
  • the additional guiding element the If a movement is limited in the y-direction, a path difference can also be compensated. The path difference arises because a direct path into the exit opening is shorter than a path that leads over the guide surfaces and then into the exit opening. This prevents distortion within the sliver.
  • An advantageous development of the invention is when the guide element is arranged offset in the y-direction, which is orthogonal to the x and z direction, offset from the outlet opening.
  • the guide element is thus not arranged directly above the outlet opening. This prevents in particular that the guide element itself hinders a direct inflow of the fiber fleece into the outlet opening.
  • a vortex can form, which forms an arc around the outlet opening.
  • the vortex is formed in particular in the x-y plane. By a displacement of the guide element in the y-direction, this is arranged on an edge of the vortex.
  • the guide element thus acts tangentially on the vortex, which increases the effect of the guide element. The quality of the emerging sliver is increased.
  • the guide element comprises a baffle element which has at least one side facing the at least one guide surface on which at least parts of the fiber web bounce off.
  • a baffle designed as a baffle element limits the movement of the fibrous web in the x direction in a simple manner.
  • the baffle element is an obstacle to the parts of the fibrous web, whereupon they bounce off and / or their movement is limited.
  • the baffle element may for example have two sides which face the respective baffles.
  • the movement component in the x direction is oriented in such a way that the fiber fleece converges from the respective guide surfaces to the exit opening.
  • the fiber fleece then impinges on the impact element or on the at least one side of the baffle and bounces off there.
  • the baffle then directs the fibrous web into the exit port.
  • the impact element prevents the parts of the fiber fleece, which flow from the respective guide surfaces to the outlet opening, from hitting one another. This prevents knotting of individual parts of the fibrous web and a chaotic arrangement of the individual fibers in the fibrous web.
  • baffle element is prism-shaped. This is a simple form that is easy to manufacture.
  • the baffle element has a shape tapering in the z-direction.
  • the shape of the impact element can be adapted to a profile of the fiber web to a sliver. The sliver quality is thus increased.
  • the impact element is designed to be tapered in its x-dimension.
  • the baffle element is designed to taper toward the exit opening, the parts of the fiber web that come from a guide surface from the x-direction bounce off the baffle element in such a way that the parts of the fiber web are diverted in the direction of the initial opening. An inflow of the fiber web into the réelleo réelle is supported, which increases the quality of the sliver.
  • the impact element is tapered in its y-dimension.
  • the baffle element is tapered away from the starting opening, an influence of the baffle element on the parts of the fiber web, which directly, ie without encountering a guide surface, flow into the Nino réelle reduced.
  • the quality of the emerging sliver is increased.
  • the at least one side of the impact element, on which parts of the nonwoven fabric rebound is straight and / or concave.
  • the parts of the fibrous web coming from the guide surface may be arranged in parallel.
  • a straight side of the baffle may be used to deflect the parallel portions of the fibrous web to the same extent, which in turn results in parallel portions of the fibrous web which then flow toward the exit port.
  • the parts of the fiber fleece that come from the guide surface are not parallel to one another, that is to say have different directions to some extent.
  • a concave side of the baffle may parallelize the parts of the fibrous web. The parts of the fibrous web then run parallel again in the outlet opening, which improves the quality of the emerging sliver.
  • the at least one straight side of the impact element has an angle to the z direction between 25 ° and 70 °, in particular between 35 ° and 60 °, preferably 45 °, this entails additional advantages.
  • the angle By means of the angle, the movement of the parts of the non-woven fabric from the x-direction in the z-direction, in particular in the exit opening, be redirected.
  • the parts of the nonwoven fabric can be deflected at the at least one straight side. Parts of the nonwoven fabric that do not move exclusively in the x direction can also be redirected in the z direction.
  • a higher angle of the face of the baffle may redirect the portions of the fibrous web in the z-direction, particularly the exit orifice.
  • a lesser angle may be used when the portions of the fibrous web flow at a shallow angle toward the exit port.
  • a straight side which is at 45 ° to the z-direction can be used when the parts of the fibrous web have been diverted exactly in the x-direction from the guide surface.
  • the guide element comprises a flow element in order to introduce an air flow into the fleece funnel in order to limit the movement of the fiber fleece in the x direction.
  • the movement of the parts of the non-woven fabric can be gently limited and redirected into the outlet opening, in particular in the z-direction.
  • the strength of the introduced air flow in particular the air velocity and / or the air flow density, can also be varied. For example, at higher production speeds, such as when the fibrous web is introduced into the fleece funnel at a higher velocity, a greater flow of air may be introduced by means of the flow member to further confidently confine and / or redirect the x-direction moving parts of the fibrous web.
  • the flow element may be formed as a nozzle which is connected to a controllable air pressure source.
  • the air flow leaves the flow element and is preferably directed in the direction of the outlet opening, so that the air flow exits through the outlet opening with the sliver again.
  • the exit of the sliver can also be supported by the outlet opening.
  • the guide element has a roof element in order to guide the fiber fleece entering the fleece funnel over the guide element in the region of the guide element.
  • the roof element With the roof element, the nonwoven fabric is gently guided over the guide element.
  • the fiber fleece is thus not divided by the guide element itself and / or hindered in its direct movement, in particular such movements that lead directly into the exit openings.
  • the roof element can also limit the proportionate movement of the fiber web in the y-direction.
  • the guide element comprises a pivoting element that limits the proportionate movement of the fiber web in the y-direction.
  • the pivoting element may be arranged in addition to the baffle element in the nonwoven funnel, so that the nonwoven funnel has two guide elements.
  • the pivoting element can be pivoted about a pivot axis, whereby its orientation can be changed.
  • the pivot axis may extend in a region between the input side and the baffle element. While the nonwoven fabric is being compacted by means of the nonwoven straightener, the pivoting element can be pivoted so that the pivoting element can be pivoted into the nonwoven fabric and / or pivoted away.
  • the proportionate in y-direction movement of the nonwoven fabric by means of the pivoting element can be limited stronger or weaker. This can be advantageous, for example, if the speed of the fiber web entering the fleece funnel increases or decreases.
  • the pivoting member may be pivoted away from the fibrous web, for example when the fibrous web has reached its terminal velocity with which it flows through the web straightener.
  • the pivot member can be pivoted away.
  • the loop remains stable itself. This reduces a braking effect of the pivoting element on the nonwoven fabric.
  • the roof element comprises a pivoting element. This simplifies the construction of the fleece funnel.
  • the roof element in this embodiment could first limit the nonwoven fabric in the y direction in such a way that the loop is formed. When the loop is formed, it may be pivoted so that the roof element guides the nonwoven fabric over the baffle, for example.
  • the pivoting element is moved about in the x-direction, in the y-direction and / or in the z-direction.
  • Axle is pivotable. This can be addressed on an orientation of the incoming nonwoven fabric.
  • the pivot member may be pivoted into or away from the fibrous web.
  • the pivoting element can be pivoted such that it has no influence on the nonwoven fabric, for example when the pivoting element is oriented parallel to the nonwoven fabric.
  • the pivoting element can be arranged for example with a ball joint on the pivot axis, so that with the ball joint, the pivoting element is pivotable about at least two pivot axes. This can be better addressed to the orientation of the nonwoven fabric with the pivoting element.
  • an advantageous development of the invention is when the pivoting element in the x-direction, in the y-direction and / or in the z-direction is displaceable.
  • the pivot axis is thereby displaced, so that not only the orientation of the pivot element but also the position of the pivot element can be changed.
  • the pivoting element can be repositioned corresponding to the nonwoven fabric.
  • the pivoting element can be moved completely out of the fleece funnel.
  • the pivoting element can be pulled out of the fleece funnel in a y-direction.
  • the pivoting member is pulled away from the loop described above away from the fleece funnel.
  • the pivoting element can also be pulled out of the fleece funnel over the cover. This is advantageous when the final speed of the entering nonwoven fabric has been reached and the nonwoven fabric has formed a stable loop in the nonwoven funnel.
  • the pivoting element can be pivoted about the pivot axis manually or by means of a drive, for example by means of a servomotor or a hydraulic and / or pneumatic device.
  • the pivoting element can also be fixable, so that it is not pivotable during operation of the fleece straightener.
  • the pivoting element has the greatest width at its center and is made narrower towards the sides.
  • the effect limiting in the y direction is intensified on central parts of the fiber fleece.
  • the looping for the middle parts of the nonwoven fabric can thus be strengthened.
  • the pivoting element has an extension in a central region in the x-direction.
  • the extension is preferably arranged in a region above the exit opening through the central arrangement.
  • the extension has a distance to the exit opening, which depends on the arrangement in the z-direction of the pivot member and a length of the extension.
  • the pivoting member and / or the extension equalize the path that the various parts of the fibrous web must travel back into the exit opening.
  • Parts of the fiber fleece that flow directly into the outlet opening must as a whole travel a smaller distance than parts of the fiber fleece which, for example, first strike the guide surfaces. By looping this path difference is compensated. This leads to a better sliver quality.
  • the extension By means of the extension, this effect can also be achieved.
  • the middle parts of the fibrous web must make a detour over the extension. This detour compensates for the way difference.
  • the extension can also be arranged on the roof element. Such a design can save material and manufacturing costs.
  • the extension can be formed integrally with the pivoting element and / or the roof element. This simplifies the manufacturing process.
  • FIG. 1 shows a sectional view of a fleece straightener with a guide element designed as a baffle element
  • Figure 2 is a sectional view of a fleece with the baffle element having two converging at an angle sides
  • FIG. 3 shows a sectional view of a fleece straightener with the impact element, wherein the two sides are concave
  • Figure 4 is a plan view of a fleece funnel with the baffle element
  • FIG. 5 shows a side sectional view of a fleece straightener with the impact element
  • FIG. 6 shows a sectional view of a fleece straightener with the impact element and a roof element
  • FIG. 7 shows a sectional view of a fleece straightener with the impact element and two gradations
  • FIG. 8 shows a sectional view of a fleece funnel with a nozzle as
  • FIG. 9 shows a side sectional view of a fleece straightener with a baffle element and a pivoting element
  • FIG. 10 shows a further side sectional view of a fleece straightener with a baffle element and a pivoting element
  • FIG. 11 shows a plan view of a fleece funnel with a pivoting element
  • FIG. 12 shows a sectional view of a fleece straightener with a baffle element and a pivoting element
  • FIG. 13 shows a sectional view of a fleece straightener with a baffle element, a pivoting element and an extension arranged thereon.
  • FIG. 1 shows a sectional view of a fleece straightener 1 with an input side 2 which is oblong in the x direction.
  • a nonwoven fabric enters the fleece funnel 1 through the inlet side 2.
  • an output side 3 is spaced in the z-direction.
  • an outlet opening 4 is formed, through which the non-woven fabric compressed to a sliver emerges from the nonwoven funnel 1.
  • the outlet opening 4 is preferably formed with a round cross-section.
  • two guide surfaces 5a, 5b are arranged, which form the actual funnel function of the web guide 1.
  • a nonwoven fabric spread in the x direction enters the nonwoven funnel 1 through the input side 2. At least the edge regions of the fiber fleece meet the guide surfaces 5a, 5b and are diverted from there in the direction of the outlet opening 4, where it leaves the fleece funnel 1 as a sliver.
  • the guide element is designed as a baffle element 6.
  • the baffle element 6 is further arranged between the two guide surfaces 5a, 5b.
  • the baffle element 6 in this embodiment two sides 7a, 7b, which are opposite to the guide surfaces 5a, 5b.
  • the baffle element 6 is preferably arranged on a cover 8, which closes off the nonwoven funnel 1 on at least one side in the y-direction (see FIG.
  • the nonwoven fabric is redirected at the guide surfaces 5a, 5b in the direction of the exit opening 4 in this embodiment.
  • At least parts, in particular edge regions, of the non-woven fabric which is spread out in the x-direction and first moves only in the z-direction are moved in the x-direction by means of the impact on the guide surfaces 5a, 5b.
  • Parts impinging on the guide surface 5a receive movement in the x-direction to the exit opening 4, and parts of the nonwoven fabric impinging on the guide surface 5b are moved counter to the x-direction to the exit opening 4.
  • the baffle element 6 delimits those in x Direction proportionate movement of the parts of the nonwoven fabric coming from the respective guide surfaces 5a, 5b.
  • the parts of the fiber fleece which come from the guide surface 5a preferably on the side 7a of the impact element 6.
  • Parts of the nonwoven fabric coming from the guide surface 5b preferably impinge on the side 7b of the impact element 6.
  • the impact element 6 is prevented in that the parts of the fiber fleece which are separated from the guide surface 5a come face-to-face with the parts of the fibrous web coming from the baffle 5b.
  • the baffle 6 has an x-dimension which is equal to the diameter of the outlet opening 4.
  • the impact element 6 can also be narrower or wider, in particular from 0.25 times to 4 times the x extension of the exit opening 4.
  • baffle element 6 may also be formed in the z-direction to the input side 2 or beyond. Also, a z-expansion of the impact element 6 is conceivable, which corresponds to 0.1 times the z-dimension of the web guide 1.
  • FIG. 1 Another embodiment is shown in FIG. From here, the same features that have the same or at least a similar effect are not explained in addition. However, such features continue to receive the same reference numerals as in FIG. 1.
  • the guide element is formed by a baffle element 6.
  • the side 7b is inclined at an angle ⁇ of the guide surface 5b.
  • the side 7a advantageously has the same angle ⁇ to the z-direction, but may also be different.
  • the side 7a is inclined to the guide surface 5a.
  • the angle ⁇ is between 25 ° and 70 °, in particular between 35 ° and 60 °, preferably at 45 °.
  • the angle ⁇ is advantageous in that, for example, parts of the fibrous web coming from the guide surface 5a have a proportional movement leading away from the exit opening 4.
  • parts of the nonwoven fabric which flow in from the direction of the input side 2, may rebound again in the direction of the input side 2.
  • the parts of the nonwoven fabric have a superposition of a movement in the x-direction and in the z-direction.
  • the parts which have been diverted by the guide surfaces 5a, 5b can thus move obliquely over the outlet opening 4 and away from it.
  • the sides 7a, 7b limit the movement of the parts of the fiber fleece and deflect them toward the other in the direction of the outlet opening 4.
  • An angle ⁇ of 45 ° can be provided, for example, when the parts of the nonwoven fabric coming from the guide surfaces 5a, 5b move in the x direction. These are then diverted by 90 ° from the x-direction in the z-direction, and in particular in the output port 4.
  • FIG. 3 shows a further alternative exemplary embodiment of the fleece straightener 1.
  • the sides 7a, 7b of the impact element 6 are concave. At the concave sides 7a, 7b, the parts of the nonwoven fabric coming from the guide surfaces 5a, 5b can be diverted.
  • FIG. 4 shows a plan view of a fleece straightener 1 with a baffle element 6.
  • the fleece strainer 1 is closed on at least one side in the y-direction with a cover 8.
  • the guide element is advantageously arranged.
  • the baffle element 6 is arranged on the cover 8.
  • the baffle element 6 is arranged offset in the y direction from the outlet opening 4.
  • the sides 7a, 7b of the impact element 6 are concave, but may also be straight.
  • the concave shape of the sides 7a, 7b advantageously promotes the introduction of the parts of the fibrous web coming from the guide surfaces 5a, 5b.
  • the baffle 6 limits movement of the parts of the fibrous web in the x direction.
  • the parts of the fiber fleece which come from a guide surface 5a, 5b are prevented by means of the impact element 6 from flowing past the exit opening 4 into the respective other area of the guide surface 5a, 5b.
  • the parts of the non-woven fabric bounce off and are diverted by means of the sides 7a, 7b into the outlet opening 4.
  • the baffle element 6 directly adjoins the outlet opening 4.
  • the baffle element 6 it is also possible for the baffle element 6 to be located with an area above the outlet opening 4. It is also possible that the baffle element 6 is spaced from the outlet opening 4 in the y-direction, ie in the plan view between the outlet opening 4 and the baffle element 6 has a gap.
  • a side sectional view of a fleece straightener 1 with a baffle element 6 is shown in the embodiment in FIG.
  • the fleece strainer 1 is closed in the y direction on at least one side with a cover 8.
  • the guide surface 5a is trapezoidal, in particular in the z-direction to the input side 2 towards tapering formed.
  • the Prallennent 6 is arranged on the cover 8. In this sectional drawing, the Prallennent 6 is triangular.
  • the impact element 6 widens in the direction of the exit opening 4. Thus, the impact element 6 has the greatest limiting effect immediately in front of the exit opening 4.
  • the baffle element 6 in this exemplary embodiment adjoins the outlet opening 4. As already described in FIG. 4, it is also possible for the baffle element 6 to reach over the outlet opening 4 with a region. In addition, the baffle 6 may also be spaced from the exit opening 4, so that a gap is formed between the two.
  • FIG. 6 shows a further alternative exemplary embodiment of a fleece straightener 1 with a guide element designed as a baffle element 6.
  • the baffle element 6 has a roof element 9, which projects beyond the sides 7a, 7b and is inclined to the x-y plane. Via the roof element 9, a non-woven fabric flowing in from the direction of the inlet side 2 is guided over the impact element 6. This prevents, in particular, that the impact element 6 itself prevents a direct (in particular such parts of the fiber fleece that are not diverted from the guide surfaces 5a, 5b) from flowing in parts of the fiber fleece. This increases the quality of the emerging sliver.
  • Fleece judge 1 shown with a baffle element 6 designed as a guide element.
  • the baffle element 6 has, at the end opposite the exit opening 4, a chamfer 10, which is inclined to the x-y plane.
  • the guide surfaces 5a, 5b each have a gradation 1 1 a, 1 1 b have. After an impact of the parts of the fibrous web on the guide surfaces 5a, 5b, these parts slip over the respective gradation 1 1 a, 1 1 b. Thus, the nonwoven fabric is passed more homogeneously in the direction of the outlet opening 4.
  • FIG. 8 shows a further exemplary embodiment of a fleece straightener 1 with a flow element as a guide element, which is designed as a nozzle 12.
  • a flow element as a guide element, which is designed as a nozzle 12.
  • a controllable air pressure source not shown
  • an air flow can be introduced into the fleece funnel 1.
  • such an air flow limits movement of parts of the nonwoven fabric in the x direction.
  • the parts of the fiber fleece that come from the guide surfaces 5a, 5b meet in the x-region of the nozzle 12 on an air jet formed by the air flow. This limits the movement of the parts of the fiber fleece.
  • the jet of air directs the fiber fleece into the outlet opening 4.
  • the flow element in particular the nozzle 12, may have a roof element in order to guide the fiber fleece over the nozzle 12, as described in FIG.
  • FIG. 9 shows a side sectional view of a fleece straightener 1 with a baffle element 6 and a pivoting element 13.
  • the guide surface 5a is conically tapered in the z-direction.
  • the nonwoven fabric compacted into a sliver emerges again from the nonwoven funnel 1 through the exit opening 4.
  • the baffle element 6 is arranged. This is offset from the exit opening 4 in the y-direction.
  • the pivoting element 13 is further arranged. This is rotatably mounted on the pivot axis 14.
  • the pivoting element 13 can be pivoted in the pivoting direction xSR.
  • the pivoting direction xSR is arranged in a yz-plane, is thus perpendicular to the x-direction.
  • the pivoting direction xSR is determined by the pivoting of the pivoting element 13 about the in x- Direction extending pivot axis 14 is formed.
  • the pivoting element 13 may also be designed to be longer than shown here, so that it extends in the position shown here beyond the outlet opening 4 and over the impact element 6. This may enhance the y-direction limiting effect.
  • the distance between the impact element 6 and the pivot axis 14 can be reduced and / or increased.
  • the distance between the impact element 6 and the pivot axis 14 can be reduced and / or increased.
  • Pivot axis 14 may be located directly above the baffle element 6. The pivot axis 14 can also be moved in the z-direction on the cover.
  • pivoting element 13 could be arranged on the front side of the impact element 6 which is at a distance from the cover 8 in the y direction.
  • pivot axis 14 could also be arranged completely in the cover 8. As a result, pivoting back of the pivoting element 13, when the pivoting element 13 is thus arranged parallel to the z-direction, is arranged flat in the cover.
  • Pivoting element 13 then forms a part of the cover 8, so to speak. This has the advantage that the pivoting element 13 no longer has any influence on the incoming nonwoven fabric in such a pivoted-back position. In particular, when the limiting in the y direction effect of the pivot member 13 is no longer needed, this can be pivoted back, wherein it is then arranged flat in the cover.
  • FIG. 10 shows a further exemplary embodiment of a fleece straightener 1 with a pivoting element 13.
  • the pivot axis 14 is designed to extend in the y-direction.
  • the pivoting element 13 is thus pivotable in the pivoting direction ySR.
  • FIG. 11 shows a plan view of a fleece funnel 1 with a pivoting element 13.
  • the pivot axis 14 is arranged to extend in the z-direction.
  • the pivot member 13 is pivotable about a pivot direction zSR.
  • the pivoting element 13 pivots in an x-y plane. This has the advantage that in a non-parallel to the cover 8 entering nonwoven fabric in the nonwoven strainer 1, the pivot member 13 can be adapted to such obliquely incoming nonwoven fabric.
  • the fleece strainer 1 has beside it a guide element, not shown here.
  • the guide element is formed as in the other figures, for example, as a baffle element 6 and / or as a nozzle 12.
  • FIG. 12 shows a sectional view of a fleece straightener 1 with a baffle element 6 and a pivoting element 13.
  • FIG. 12 has the same or at least similar features, which will not be explained again for the sake of simplicity. It will be discussed here only on the essential differences.
  • a pivoting element 13 In the area of the input side 2 is a pivoting element 13 with the
  • Pivot axis 14 arranged.
  • the pivoting element 13 is arranged between the input side 2 and the baffle element 6.
  • the side of the pivoting element 15 is convex, but may, for example, additionally or alternatively be straight and / or concave.
  • the pivoting element 13 may be formed wider or narrower in its x-extension than shown here. Also, the distance between the side of the pivot member 15 and the pivot axis 14 may be formed larger or smaller. The pivoting element 13 thus becomes longer.
  • the pivot axis 14 may also be displaced in the z direction.
  • the pivot axis 14 may be further displaced in the direction of the impact element 6.
  • pivoting element 13 Connecting pivoting element 13 directly to the baffle element 6, the pivoting element 13 acts similarly to a roof element 9 (see Figure 6). Then, however, the pivot member 13 only upwards, away from the baffle 6, pivot.
  • the fiber fleece entering the fleece strainer 1 is limited in its movement in the y-direction.
  • parts in the middle of the fibrous web are diverted on the pivoting element 13 and limited in the movement in the y-direction.
  • Parts of the fiber fleece at the edge are first deflected on the pivoting element 13 and limited in their movement and then redirected at the guide surfaces 5a, 5b in the direction of the outlet opening 4. If the nonwoven fabric in its x-dimension is wider than the pivoting element 13, the pivoting element 13 has only an influence on a section of the nonwoven fabric.
  • the parts of the fibrous web at the edge meet only on the guide surfaces 5a, 5b and are redirected in the direction of the impact element 6, which can be limited to the impact element 6 in its movement in the x direction.
  • the fiber fleece points Thus, areas which are limited only by means of the pivoting element 13 in the y-direction, by means of the impact element 6 in the x-direction or by means of both elements 6, 13 in the x and y directions.
  • FIG. 13 shows a sectional view of a fleece straightener 1 with a baffle element 6, a pivoting element 13 and an extension 16 arranged thereon.
  • the pivoting element 13 has the extension 16 in a region in the middle of its x-extension. This extends the pivoting element 13 toward the center. In this view, the z-dimension in the center of the pivot member 13 is increased by the extension 16.
  • the extension 16 preferably acts wegausreteend.
  • the parts of the sliver, which flow into the exit opening via the guide surfaces 5a, 5b, have to travel a longer distance than the parts of the sliver which are arranged in the middle and flow directly into the exit opening.
  • the parts of the fibrous web in the middle always flow first through the exit opening 4. Depending on the speed of the fibrous web and the extent of the
  • the parts of the nonwoven fabric at the edge flow later in the output port 4. This leads to a delay of the individual fibers in the nonwoven fabric with each other.
  • the extension 16 By means of the extension 16, the middle parts of the fibrous web are passed on a detour. In particular, a loop is formed away from the pivoting element 13. This detour, especially the loop, compensates for the path difference between the different parts of the fiber fleece. The various parts of the fiber fleece thus flow simultaneously into the outlet opening 4. The fiber ribbon quality is thereby increased.
  • the path to be covered of the various parts of the nonwoven fabric can be changed.
  • the pivot member 13 with the extension 16 is pivotable.
  • the sliver can be influenced.
  • the path that the parts of the sliver need to travel around the pivot member 13 may be changed to achieve optimum quality matching of the exiting sliver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne un entonnoir à voile pour comprimer un voile de fibres, en particulier sur un banc d'étirage, une carde ou une peigneuse, comprenant un côté d'entrée (2) allongé dans la direction x, au niveau duquel le voile de fibres étendu et constitué de fibres individuelles entre dans l'entonnoir à voile (1) et un côté de sortie (3) situé à distance du côté d'entrée (2) dans la direction z, au niveau duquel côté de sortie le voile de fibres sort de l'entonnoir à voile (1) sous forme de bande de fibres, comprenant une ouverture de sortie (4) qui est située sur le côté de sortie (3) et comprenant au moins une surface de guidage (5a, 5b), disposée entre le côté d'entrée (2) et le côté de sortie (3), pour le voile de fibres, afin de guider le voile de fibres entrant dans l'entonnoir à voile (1) en direction de l'ouverture de sortie (4). Selon l'invention, au moins un élément de guidage (6, 12) est disposé dans une région entre le côté d'entrée (2) et l'ouverture de sortie (4), lequel élément de guidage limite un déplacement partiel du voile de fibres dans la direction x et/ou dans la direction y, l'élément de guidage (6, 12) étant disposé de telle sorte qu'après la déviation du voile de fibres en direction de l'ouverture de sortie (4) au moyen des surfaces de guidage (5a, 5b), il empêche que les fibres s'entrechoquent au moins dans la direction x.
EP16719048.7A 2015-04-30 2016-04-20 Entonnoir à voile pour comprimer un voile de fibres, pourvu d'un élément de guidage Active EP3289125B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015106808.7A DE102015106808A1 (de) 2015-04-30 2015-04-30 Vliestrichter zum Verdichten eines Faservlieses mit einem Leitelement
PCT/EP2016/058681 WO2016173893A1 (fr) 2015-04-30 2016-04-20 Entonnoir à voile pour comprimer un voile de fibres, pourvu d'un élément de guidage

Publications (3)

Publication Number Publication Date
EP3289125A1 true EP3289125A1 (fr) 2018-03-07
EP3289125B1 EP3289125B1 (fr) 2021-11-17
EP3289125B8 EP3289125B8 (fr) 2021-12-22

Family

ID=55858750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16719048.7A Active EP3289125B8 (fr) 2015-04-30 2016-04-20 Entonnoir à voile pour comprimer un voile de fibres, pourvu d'un élément de guidage

Country Status (5)

Country Link
EP (1) EP3289125B8 (fr)
CN (1) CN107690489B (fr)
BR (1) BR112017021544B1 (fr)
DE (1) DE102015106808A1 (fr)
WO (1) WO2016173893A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018118923A1 (de) * 2018-08-03 2020-02-06 Maschinenfabrik Rieter Ag Verfahren zum Abstimmen einer Vliesdüse auf ein Faserband
CN108866694A (zh) * 2018-08-28 2018-11-23 青岛云龙纺织机械有限公司 一种集束器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1019273A (en) * 1911-12-11 1912-03-05 Whitin Machine Works Heilman combing-machine.
BE372915A (fr) * 1929-08-23
FR1091368A (fr) * 1953-01-20 1955-04-12 Casablancas High Draft Co Ltd Perfectionnements aux guide-mèche pour mécanismes d'étirage de fibres textiles
GB2063318B (en) * 1979-11-20 1983-06-29 Tashkent Sp Konstrukt Bjuro Te Sliver condenser for open-end spinning machines
CS277117B6 (en) * 1990-08-21 1992-11-18 Vyzk Ustav Bavlnarsky Apparatus for the withdrawal of carded fibrous web from a carding device doffing cylinder
DE19618642B4 (de) * 1996-05-09 2007-07-19 Rieter Ingolstadt Spinnereimaschinenbau Ag Vliestrichter
DE19909040B4 (de) * 1998-04-16 2017-05-24 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung am Ausgang einer Strecke
DE19945319B4 (de) * 1999-09-22 2010-01-14 Rieter Ingolstadt Gmbh Vliestrichter
DE10230433A1 (de) 2002-07-06 2004-01-22 Rieter Ingolstadt Spinnereimaschinenbau Ag Vliestrichter für bandbildende Textilmaschinen, Satz von Vliestrichtern und dessen Verwendung
DE10323757A1 (de) * 2003-05-22 2004-12-09 Rieter Ingolstadt Spinnereimaschinenbau Ag Vliesführungsvorrichtung für eine Textilmaschine sowie Textilmaschine
CN201077880Y (zh) * 2007-09-12 2008-06-25 郭昆盛 并条机的喇叭口
CN203429309U (zh) * 2010-11-30 2014-02-12 拉卡什米机械厂有限公司 具有停止运动装置的织物引导设备
CN202054952U (zh) * 2011-04-21 2011-11-30 沈阳宏大纺织机械有限责任公司 纤维网收拢压缩装置
DE102011053811A1 (de) * 2011-09-21 2013-03-21 Rieter Ingolstadt Gmbh Spinnmaschine und Verfahren zur Unterbrechung der Garnherstellung an einer Spinnmaschine
DE102013110915A1 (de) * 2013-10-01 2015-04-02 Trützschler GmbH & Co Kommanditgesellschaft Vorverdichter zum Glätten bzw. Kompaktieren eines Faserbandes in einer Wickelmaschine, Wickelmaschine und Verfahren zum Betreiben einer Wickelmaschine

Also Published As

Publication number Publication date
BR112017021544A2 (pt) 2018-07-10
EP3289125B8 (fr) 2021-12-22
CN107690489A (zh) 2018-02-13
WO2016173893A1 (fr) 2016-11-03
BR112017021544B1 (pt) 2022-02-01
DE102015106808A1 (de) 2016-11-03
EP3289125B1 (fr) 2021-11-17
CN107690489B (zh) 2021-04-27

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