EP1920091A2 - Drafting system for fabricating fibrous material - Google Patents
Drafting system for fabricating fibrous materialInfo
- Publication number
- EP1920091A2 EP1920091A2 EP06791341A EP06791341A EP1920091A2 EP 1920091 A2 EP1920091 A2 EP 1920091A2 EP 06791341 A EP06791341 A EP 06791341A EP 06791341 A EP06791341 A EP 06791341A EP 1920091 A2 EP1920091 A2 EP 1920091A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- drafting
- pair
- roller
- drafting system
- 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
Links
- 239000002657 fibrous material Substances 0.000 title claims abstract description 55
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000009987 spinning Methods 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 15
- 238000005056 compaction Methods 0.000 description 13
- 238000009940 knitting Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 238000007378 ring spinning Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010040 friction spinning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- 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
- D01H5/56—Supports for drafting elements
- D01H5/565—Top roller arms
-
- 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
- D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
Definitions
- the invention relates to a drafting system of the preamble of claim 1 specified genus.
- Drafting systems for processing fiber material are generally designed as 3- or 4-roller drafting systems that work with straps in the main draft zones. They can od with various components such as compressors, mechanical twist tubes od in the draft zones. Like. Be provided, the straps can be connected for the purpose of compaction to suction sources.
- the lower rollers of the drafting systems are usually provided with straight or oblique corrugations, which ensure good clamping of the fiber material in the nips of the pairs of rollers, while the upper rollers usually have rubber pads.
- Verflugung increases very strongly, because accumulate at the different parts of fibers, which then wander uncontrollably in the drafting system, connect with the normal flowing flow of material and thus sporadically lead to severe delays.
- each nozzle of a lower or upper roller is associated with a small distance so that it emits an air stream which is perpendicular to the formed by the nips of the pairs of rollers conveyor track for the Fiber material is directed and perpendicular to the
- a resulting problem is that uncontrolled air currents arise and these fibers can easily get back into the fiber stream and / or one of the nips, resulting in fiber clumping and thick areas in the fiber material, an irregular distortion of the fiber material and a stoppage of the drafting system can cause due to blockages.
- Drawbars of this type are therefore not suitable for high-performance drafting, as z. B. for the processing of short staple fibers at the highest distortion and operating speeds and z. B. for the above centrifuges, air,
- Friction and spinning / knitting process are needed, which work without exceptions with working speeds far above the ring spinning.
- the invention has the task of the drafting of the type described initially in such a way that it allows a controlled air flow to the drafting around an accumulation of fibers, fluff, flakes od.
- Approachers and Batzen largely avoids thereby performing a faulty delay work and can be used not only as a slow-running drafting system on a ring spinning machine, but in particular as a high-performance drafting for the purposes specified above.
- the drafting system according to the invention is z. B. to a 4-roller drafting system for strip processing without compaction with three delay zones, which - viewed in material direction - as Vorverzugszone, Anspannverzugszone and Main delay zone can be called.
- the fillers located in the interstices of the lower and upper rolls of at least selected pairs of rolls shield the fiber material from flying fibers, fluff or the like.
- flow channels are preferably provided above and below the corresponding upper or lower rollers, which lead to a steady, parallel to the conveyor track and preferably directed against the material direction of air flow, are useful with respect to the environment under a slight negative pressure and serve the purpose od od flying fibers or the like.
- a protective tube also called a trocar, preferably leads the fiber material to the input rollers.
- the material flow is sufficiently shielded on the input side of the air currents.
- Anspannverzugszone is expediently an open compressor, which compresses the material flow to about 10 mm when conventional tapes are presented.
- the main draft zone there may be another open compressor which slightly further densifies the fiber stream of 10 mm width coming from the tension draft zone.
- the finished stretched fiber material passes through the output rollers z. B. to an associated spinning system.
- the output lower roller may be associated with a conventional, technologically induced suction.
- the three top rollers seen in the material direction, are located on a common pressure arm.
- the output top roller is preferably mounted separately and axially iridescent.
- a turbulence brake can be located on each of the upper and / or lower rollers. It is a knife-like structure that at the roller in question or is set to the narrowest gap.
- the drafting system according to the invention can also be designed as a drafting system for strip processing with compaction.
- the compaction can be effected by a spinning nozzle with spinning tube.
- an air vortex is spun, which spins the material into a "temporary yarn".
- the rotations of the temporary yarn dissolve because of the false-twist effect, and only parallel but perfectly compacted fibers enter the clamping region.
- the output rollers can now follow a spinning device of known type.
- the drafting system is modified, regardless of the number of pairs of rollers present, in a particular embodiment, at the input top roller of the main drafting zone.
- the input upper roller carries for this purpose a Riemchenkafig, which carries a circumferential, air-permeable straps known type.
- the strap is placed around rotatably mounted pins od.
- Like. And is covered by an internal suction box.
- the suction box preferably has an opening which tapers in the material running direction from about 10 mm to about 5 mm.
- This modification is mainly not for compacting, but for improving the shrinkage of short fibers into the exit rollers by increasing the retention force. If an effective compaction take place, then a z. B. formed by a spin tube compaction zone, as described above, appended.
- the strap expediently has a gap to a cover located above it, which just touches the flow of material without squeezing it.
- FIG. 1 shows a longitudinal section through an inventive drafting system with four pairs of rollers for the processing of strip material.
- Figures 2 and 3 are sections along the lines II-II and HI-III of Fig. 1;
- FIG. 4 shows a section corresponding to FIG. 2 through a drafting system which is suitable especially for spinning / knitting machines
- FIG. 5 shows a perspective view of a compressor suitable for the drafting systems according to FIGS. 1 to 4;
- FIGS. 1 to 4 shows a schematic cross section through a turbulence brake suitable for the drafting systems according to FIGS. 1 to 4;
- FIG. 7 is a schematic cross-section through a main drafting zone for the drafting systems according to FIGS. 1 to 4 intended for processing extremely short-staple fiber material;
- FIG. 8 shows a section through the main drafting zone along the line VIII-VIII of Fig. 7.
- Figure 9 is a longitudinal section through a drafting system with five pairs of rollers and a compacting device having a spinneret and an adjoining spinning tube.
- FIG. 1 shows first a conventional 4-roller drafting system, through which a band-shaped fiber material 2 is passed in a direction indicated by arrows 1 conveying direction.
- the drafting system has four in the conveying direction 1 one behind the other, usually driven at different peripheral speeds pairs of rollers, each having a lower roller 3a, 4a, 5a and 6a and a top roller 3b, 4b, 5b and 6b.
- rollers 3a, 3b form a first or pair of input rollers and the rollers 6a, 6b a fourth or pair of output rollers, while the rollers 4a, 4b and 5a, 5b form middle roller pairs or a second and third roller pair.
- All pairs of rollers define customary clamping lines between them.
- the roller pairs 3a, 3b and 4a, 4b form a Vorverzugszone VV, wherein the peripheral speeds of the rollers are selected so that a comparatively low distortion of the fiber material 2 is obtained.
- the pairs of rollers 4a, 4b and 5a, 5b operated at such peripheral speeds that between them a Anspann- delay zone AV arises, in which the delay is just sufficient to keep the fiber material 2 stretched.
- a main draft zone HV is provided, which is why the peripheral speeds of these rollers are chosen so that an extension of the fiber material 2 z. B. by 50 times or more.
- the upper rollers 3b, 4b and 5b are rotatably mounted as shown in FIG. 1 on a schematically indicated pressure arm 7, the od with a bearing shaft 8 to a stationary frame. Like. Is pivotally mounted and in the direction of a double arrow v by means of a force, for. As a spring force, can be biased to press the upper rollers 3b, 4b and 5b against the associated lower rollers 3a, 4a and 5a.
- the storage and the drive of the rollers 3a, 3b to 5a, 5b can be carried out in the usual way.
- the upper roller 6b of the pair of output rollers is mounted separately and pivotably and alternately in the axial direction, as indicated schematically in FIG. 1 by a bearing 9 and arrows w and x. Due to the iridescent storage, a preservation of the rubber supports and extension of the service life of this particularly heavy-wearing roller 6b are achieved. To further extend the service life of the output top roller 6b may be given a much larger diameter than the other rollers.
- the drafting system according to FIG. 1 has a device which serves for keeping clean and for avoiding unwanted fiber fly in the region of at least one selected roller pair.
- the selected pair of rollers is preferably that pair of rollers whose rollers are driven at the greatest peripheral speed and therefore contribute particularly strongly to the formation of fiber fly and the like, as is the case in Figure 1 for the pair of outfeed rollers with rollers 6a and 6b.
- this device is designed as follows.
- At least one respective flow channel 10 and 11 is provided which is parallel to the conveyor track or to the conveying direction 1 and which is on the side facing away from the conveyor track, ie outwardly, by covers 12 and 14 is limited.
- the covers 12 on the side of the lower rollers 3a to 6a are suitably fixed to a stationary part of the drafting system, while the covers 14 on the side of the upper rollers 3b to 6b are preferably connected to the pressure arm 7 so as to be pivoted outwardly therewith can.
- the flow channels 10, 11 extend to the lower and upper rollers 3a to 6a and 3b to 6b, respectively.
- Each flow channel 10, 11 is associated with at least one, only schematically indicated blowing nozzle 15, 16, the so is arranged to generate an air flow which flows through the flow channels 10, 11 substantially parallel to the conveyor track and tangential to the rollers 6a, 6b at least of the selected pair of rollers.
- the flow channels 10, 11 with particular advantage of the output rollers 6a, 6b extends to the input rollers 3a, 3b, so that all existing rollers 3 a to 6b are detected by the air streams.
- the blowing nozzles 14, 15 are each arranged on a downstream in the conveying direction behind the pair of output rollers 6a, 6b in the region of inlet sections to the flow channels 10, 11, while in the conveying direction 1 in front of the inlet rollers 3a, 3b outlet sections of the flow channels 10, 11 at an indicated by an arrow y suction or vacuum source are connected.
- the flow channels 10, 11 in the previously held for best embodiment on its inner, the conveyor track facing sides through limited to the lower and upper rollers 3a to 6b patches or covers 17 and 18.
- the patches 17, 18 have an arbitrary shape in themselves, but are provided in the embodiment on their rollers 3a to 6b facing sides with adapted to their peripheral surfaces, concave curved portions. This results between the rollers 3a to 6b and the filler pieces 17, 18 narrow column 19, which carried a reentry of in the air streams Make fibers in the Fase ⁇ naterial 2 practically impossible.
- the patches extend 17, 18 perpendicular to the conveyor track to such a height, they, as shown in FIG. 1, together with the outer peripheral surfaces of the rollers 3a to 6b form almost a plane and therefore no cause for turbulence or other disorders in to provide the air streams.
- the air currents therefore pass practically only tangentially the circumferential surfaces of the various rollers that project only slightly into the flow channels 10, 11.
- the air streams are preferably at an overpressure of z. B. generates about 150 mm of water to the environment, while at the same time the suction source (arrow y) ensures that in the flow channels 10, 11 creates a slight negative pressure to the environment.
- the air flows and the negative pressure are preferably chosen so that flows out of the nozzles 15, 16 air at high speed and low air flow to the resulting fiber / air mixture quickly and effectively from the rollers 3a to 6b, in particular the fast-running output rollers 6a, 6b lead away.
- An overpressure of about 150 mm of WS has proven to be sufficient for this purpose.
- one of the two flow channels crosses the conveying path at a location in the conveying direction 1 in front of the pair of inlet rollers.
- a respective flow channel 11 projecting through also referred to as a trocar protective tube 20, which can extend into the gusset between the input rollers 3a, 3b .
- Protective tube 20 also has a streamlined shape, z. B. have a smooth, streamlined cross-section.
- the fibrous material 2 is protected in this case by lateral coverings of the flow channels 10, 11 from the air streams and the fibers entrained therein.
- the flow channels 10, 11 could end at points located between the rollers 5a, 6a and 5b, 6b and be led outwards.
- drafting systems are often designed in tandem construction and provided with at least two adjacent drafting sections and conveyor tracks for conveying two juxtaposed fiber streams.
- two of the conveyor paths are formed inter alia by two laterally adjacent, provided with corrugated Unifangs vom bottom rollers 4al, 4a2 and top rollers 4b 1, 4b2, the two bottom rollers 4al, 4a2 mostly on a single, 4, while the upper rollers 4b 1, 4b2 are arranged individually and axially spaced from each other, but connected together by an axle 21 to which the pressure arm 7 is fixed.
- an axle 21 to which the pressure arm 7 is fixed.
- each of the two drafting unit sections with the above-described flow channels and blowing nozzles. Therefore, the one stretched plant section z. B. flow channels 10a and IIa, the other drafting section, however, flow channels 10b and IIb.
- These flow channels 10a, 10b and IIa, 11b are preferably produced by attaching or being attached to the continuously formed outer covers 12 and 14, each transverse to the conveyor tracks and arranged at the two end faces of the respective rollers partitions 22 and 23 respectively which reach close to the relevant conveyor tracks. chen.
- the partitions 22 are suitably stationary, the partitions 23, however, attached to the covers 14 and together with these or separately therefrom on the pressure arm 7 and pivotally mounted therewith.
- the z. B. facilitates the attachment of the pressure arm 7 and are not traversed by compressed air.
- the covers 12, 14 and the partitions 22, 23 are preferably streamlined as in the case of Fig. 1 and formed so that they have no corners and projections on which fibers, flakes od. Like. Adhere and can accumulate.
- 4bl On the side of the top rollers 4bl, 4b2 several covers 14 may be present, between which the pressure arm 7 is arranged, as Fig. 2 reveals.
- tandem roller pairs formed in tandem construction can be provided. This is indicated in Fig. 2 by pairs of rollers 4cl, 4dl and 4c2, 4d2, which are associated with corresponding flow channels.
- the different pairs of rollers follow each other at pitches T, whereby od between the various tandem arrangements sufficiently large spaces for required yarn packages. The like. Arise.
- Fig. 3 shows the drafting arrangement according to FIGS. 1 and 2 in a section placed through the filling pieces 17 and 18 (section line III-III of FIG. 1). It can be seen that both the filling pieces 17 belonging to the lower rolls and the filler pieces 18 belonging to the upper rolls are brought close to the conveying path for the fiber material 2 to be processed. As a result, the patches 17, 18 cover the
- FIG. 3 shows a drafting system which also has more than two adjacent conveyor tracks and is preferably used, for example, in spinning / knitting machines (eg PCT WO 2004/079068).
- a bottom roller shaft (eg 4) common to all drafting sections along which a plurality of bottom rollers 4cl, 4al, 4a2, 4c2, etc. are arranged as shown in Fig.
- FIG. 2 is a plurality of top rollers 4dl connected in tandem construction , 4b 1, 4b2 and 4d2 assigned, so that together with the other, not visible in Fig. 4 and correspondingly formed lower and upper rollers a plurality of conveyor tracks formed.
- Two upper rollers each eg 4b 1 and 4b2 form, analogously to FIG. 2, a pair of upper rollers, wherein an axial distance A between the various upper roller pairs is considerably less slanted than in FIG. 2 in order to reduce the required installation space. Due to the lack of yarn packages od. Like. This distance A can be kept very small, in contrast to other purposes serving drafting.
- each flow channels 11c, Hd, etc. may be provided, which, as shown in Fig. 2 on both sides of pressure arms 7a, 7b, 7c, etc.
- Fig. 5 shows an open compressor 26, which in a delay zone formed between two pairs of rollers, in particular z. B. in the Anspannverzugszone AV (Fig. 1) may be arranged.
- the compressor 26 is traversed by the indicated in Fig. 5 by an arrow fiber material 2 and has at its output the narrowest point with a jaw width of z. B. about 10 mm.
- a corresponding compressor 26 can be arranged in the main drafting zone HV (FIG. 1) in order to further densify the fiber material 2, and at its narrowest point have for example a jaw width between 5 mm and 10 mm.
- Fig. 6 shows a turbulence brake 27, the z. B. in the immediate vicinity of the output rollers 6a, 6b at the end of the main drafting zone HV is arranged.
- the task of the turbulence brake 27 is to protect the nip gaps formed between the roller pairs before the entry of circulating air flows and in these entrained fibers.
- the turbulence brake 27 has z. B. the rollers 6a, 6b associated, arranged on the sides of the associated filler pieces 17, 18 cover elements 28a and 28b with ends 29a and 29b, the peripheral surfaces of these rollers 6a, 6b abradingly abut on the inlet side to the nip (roller 6b) or this with a small distance (roller 6a) are opposite.
- the rollers 6a, 6b provided with the cover elements 28a, 28b preferably have smooth surfaces. This avoids sparking and noise that would be unavoidable in combination with corrugated rolls.
- Other rollers of the drafting system can be provided with such turbulence brakes 27.
- FIG. 7 and 8 Another preferred feature of the drafting systems according to the invention consists of a in Fig. 7 and 8 shown Riemchen tanninfig 30, the z. B. the top roller 5b is assigned, which is located at the entrance to the main drafting zone HV.
- the Riemchen tanninfig 30 includes a strap 31, on the one hand on the upper roller 5b, on the other hand to reduce the friction on a rotatably mounted, a comparatively small diameter shaft 32 runs, which is close to the etc.zwickel the output roller pair 6a, 6b.
- the apron 31 is permeable to air and guided between the rollers 5b, 6b via a suction box 33, which is close to the fiber material 2 and lies at a suction source. As shown in FIG.
- the suction box 33 has an opening 34 which is overflowed by the fiber stream 2 and has a width b (FIG. 8) which decreases in the conveying direction. B. 5 mm.
- a width b (FIG. 8) which decreases in the conveying direction. B. 5 mm.
- the opening 34 could also be a round, four- have square or otherwise shaped peripheral contour. If a correct compaction is to be achieved, a compacting device described below is preferably provided.
- the apron cage 30 preferably has a plate 35 which can simultaneously form one of the filling pieces 17 (FIG. 1) and which is tightly opposite the fiber material 2 or lies on or contacts the fiber material 2, without squeezing it. As a result, the efficiency of the suction box 33 operated with a suitable negative pressure is increased.
- the suction box 33 and the plate 35 may, analogously to FIG. 6, also be designed simultaneously as turbulence brakes, as indicated in FIG. 7 by their ends 33a, 35a corresponding to the ends 29a, 29b of the cover elements 28a, 28b in FIG ,
- FIGS. 9 to 12 show details of a compacting device which extends the drafting device described with reference to FIG. 1 about a compaction zone K arranged in the conveying direction 1 behind the pair of output rollers 6a, 6b.
- the same reference numerals as in Fig. 1 are provided in Fig. 9 with the same parts. While the delays in the zones VV, AV and HV are in the usual order of magnitude, the delay within the compaction zone K is set to zero or virtually zero.
- a spinning device 36 with a spinneret 36a and a spinning tube 36b adjoining it.
- the spinneret 36a sucks the fiber material 2 exiting from the exit rollers 6a, 6b and forms from it a temporary ring yarn which extends to the end of the spinning tube 36b.
- the entire system is a false twist device, which is why in a following on the spinning tube 36b, consist of rollers 37a, 37b pair of rollers only parallel fibers and the rotations between the end of the spinning tube 36b and the rollers 37a, 37b are completely degraded.
- the from the However, fiber material 2 formed material flow is perfectly compacted.
- the rollers 37a, 37b may be followed by a spinning system of known type.
- FIGS. 10 to 12 A preferred exemplary embodiment of the spinneret 36a is shown in FIGS. 10 to 12. Thereafter, the spinneret 36a is formed on its input side as a funnel having a substantially oval or flat oval inlet opening 38a and a z. B. circular outlet opening 38b has.
- the inlet opening 38a is preferably arranged in the output gusset of the output roller pair 6a, 6b and has a width B (FIG. 11) which preferably corresponds at least to the width of the fiber material 2 exiting from this pair of output rollers 6a, 6b so that no fibers can escape laterally therefrom , H. no fiber loss occurs and all fibers occurring are incorporated into the temporary yarn.
- the height of the inlet opening 38a measured perpendicular to the width B can be comparatively small in accordance with the usual thickness of a sliver.
- the exit orifice 38b has a diameter D ( Figure 11) such that the ratio B: D z. B. 5: 1 and the fiber material 2 is already compacted through the hopper.
- the dimension D z. B. about 2 mm and the dimension B z. B. be about 5 mm to 10 mm.
- the spinneret 36a z. B. provided with at least one nozzle 36 c, which at an angle of z. B. is arranged at 90 ° to the conveying direction and Spinnrohrachse, serves in a known manner to produce air vortices and are connected to a compressed air source, not shown, the compressed air with an overpressure of z. B. 0.2 bar to 0.4 bar supplies.
- the compressed air draws the fiber material 2 exiting the output roller pair 6a, 6b into the spinneret 36a and at the same time conveys it through the subsequent spinning tube 36b in the direction of the roller pair 37a and 37b (FIG. 9).
- the fiber material in the spinning tube 36a is given a multiplicity of revolutions, as indicated schematically in FIG. 12 by a wavy line 40.
- a high compaction is achieved, which also in the area between the spinning tube 36b and the subsequent pair of rollers 37a and 37b, in which the rotations completely dissolve again (False-twist effect), essentially preserved.
- the thus-compressed fiber material 2 can then be fed to a spinning machine, a spinning / knitting machine or the like.
- rollers 37a, 37b are provided with particular advantage analogous to FIGS. 1 and 5 with turbulence brakes 27.
- the top roller 37b is attached as usual to a pressure arm 41 and preferably mounted axially iridescent. It is also particularly advantageous if the flow channels 10 and 11 described with reference to FIG. 1 as shown in FIG. 9 are extended to the rollers 37a, 37b of the further pair of rollers.
- the fast-rotating pair of rollers 37a, 37b is preferably also a selected pair of rollers, to which are associated with the blowing nozzles 15, 16 analogue nozzles 42a, 42b.
- the drafting device is designed as in Fig. 1, which is why the same parts are provided with the same reference numerals.
- the loads of the upper rollers 3b to 6b and 37b move in the usual orders of magnitude.
- the top rollers 5b and 6b can also be loaded much less than is usual in ring spinning, which extends the service life. This is especially true when the spinning tension of the subsequent spinning system caused by true rotations does not exceed 0.2 N (eg in air spinning or spinning / knitting).
- a particularly significant advantage of the drafting devices according to the invention described is that the material streams formed from the fiber material 2 are largely separated from the flow channels 10, 11 serving the detuning, in particular if additionally the filling pieces 17, 18 used and the walls of the
- Flow channels are consistently smooth and formed so that no dead zones od. Like. Result.
- a preferred streamlined, ie streamlined or a small flow resistance formation of the inner walls of the flow channels 10, 11 also ensures that can settle on the fiber material 2 no disturbing Anflieger and batzen.
- disadvantageous fiber fly can thus not get back into the main material flow and adversely affect the quality and uniformity of the entire process and especially the emerging from the drafting fiber composite.
- otherwise possible turbulences remain controllable, in particular in the draft zones HV and K, so that very high operating speeds can be achieved with the described drafting systems. This applies in particular when the air streams flow in opposite directions to the conveying direction 1 (FIG. 1) because they then flow past the surfaces in the direction of rotation of the rollers and are therefore particularly uniform.
- the invention is not limited to the described Ausvolangsbei admirably, which can be modified in many ways. This applies, inter alia, to the dimensions given by way of example only.
- the intended in each case form and construction of the flow channels 10, 11 may vary within wide limits.
- the number of existing pairs of rollers can be different than described depending on the individual desired delay.
- the term "drafting rollers" used is intended to encompass all conventional types of drafting device elements, in particular also the various strap constructions (eg FIGS. 7 and 8).
- the drafting with other, usually existing facilities, eg. B. a technical suction 43 (Fig. 1 and 9) are provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06791341T PL1920091T3 (en) | 2005-08-30 | 2006-08-30 | Drafting system for fabricating fibrous material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/001514 WO2007025490A1 (en) | 2005-08-30 | 2005-08-30 | High-performance drafting equipment and process |
PCT/DE2006/001535 WO2007025535A2 (en) | 2005-08-30 | 2006-08-30 | Drafting system for fabricating fibrous material |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1920091A2 true EP1920091A2 (en) | 2008-05-14 |
EP1920091B1 EP1920091B1 (en) | 2014-11-12 |
EP1920091B8 EP1920091B8 (en) | 2015-01-21 |
Family
ID=36088219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06791341.8A Active EP1920091B8 (en) | 2005-08-30 | 2006-08-30 | Drafting system for fabricating fibrous material |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1920091B8 (en) |
DE (1) | DE112005003744A5 (en) |
ES (1) | ES2529177T3 (en) |
PL (1) | PL1920091T3 (en) |
WO (2) | WO2007025490A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062364B4 (en) | 2006-12-22 | 2019-03-14 | Wilhelm Stahlecker Gmbh | Device for producing a knitted fabric |
CH699521A2 (en) * | 2008-09-09 | 2010-03-15 | Rotorcraft Ag | Drafting arrangement for a knitting machine. |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2246474A (en) * | 1939-01-04 | 1941-06-17 | Ver Kugellagerfabriken Ag | Guiding arrangement for top weighting rolls |
US4187588A (en) * | 1975-12-26 | 1980-02-12 | Ntn Toyo Bearing Co. Ltd. | Construction of pendulum arm type high sensitivity self-aligning weighting arm |
JPS6034038Y2 (en) | 1981-09-16 | 1985-10-09 | 株式会社豊田自動織機製作所 | Fiber bundle draft device |
JPS58120823A (en) * | 1981-12-29 | 1983-07-18 | Toyoda Autom Loom Works Ltd | Cleaning apparatus of draft roll in spinning machine |
JPS5915521A (en) * | 1982-07-15 | 1984-01-26 | Toyoda Autom Loom Works Ltd | Cleaning apparatus in fine spinning machine |
DE4003019A1 (en) * | 1990-02-02 | 1991-08-08 | Fritz Stahlecker | Drawing unit rollers - have shell-shaped shroudings to cover inlet side |
DE19514997A1 (en) * | 1995-03-30 | 1996-10-02 | Chemnitzer Spinnereimaschinen | Slubbing feeding in and through spinner drawing unit for high draft |
DE19548671A1 (en) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Suction cleaner at a drawing unit for vacuum spinning machine |
EP1431433A1 (en) * | 2002-12-20 | 2004-06-23 | Maschinenfabrik Rieter Ag | Drafting device structure |
-
2005
- 2005-08-30 DE DE112005003744T patent/DE112005003744A5/en not_active Withdrawn
- 2005-08-30 WO PCT/DE2005/001514 patent/WO2007025490A1/en active Application Filing
-
2006
- 2006-08-30 PL PL06791341T patent/PL1920091T3/en unknown
- 2006-08-30 ES ES06791341.8T patent/ES2529177T3/en active Active
- 2006-08-30 WO PCT/DE2006/001535 patent/WO2007025535A2/en active Application Filing
- 2006-08-30 EP EP06791341.8A patent/EP1920091B8/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007025535A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007025490A1 (en) | 2007-03-08 |
DE112005003744A5 (en) | 2008-08-14 |
WO2007025535A3 (en) | 2007-08-23 |
EP1920091B8 (en) | 2015-01-21 |
ES2529177T3 (en) | 2015-02-17 |
WO2007025535A2 (en) | 2007-03-08 |
PL1920091T3 (en) | 2015-02-27 |
EP1920091B1 (en) | 2014-11-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4426249C2 (en) | Spinning process and spinning machine with covered suction roll on the drafting system | |
DE4426278B4 (en) | Spinning machine with condensation stage | |
EP1978833B1 (en) | Deflecting device for a continuous filter tow, method for conveying and deflecting at least one continuous filter tow, and device for the production of cigarette filters | |
EP2640882B1 (en) | Device for dry-forming a fibrous web | |
DE19726694A1 (en) | Draw frame for compact spinning preventing inter-cord fibre bridges | |
WO2012098131A1 (en) | Method and device for separating out contaminants from a pneumatic fibre stream | |
DE1815021C3 (en) | Machine for the production of a random fiber fleece | |
EP0178466B1 (en) | Method and device for making a yarn | |
WO1999013141A1 (en) | Device mounted on a spinning preparation machine, such as a carder, a drawing frame or the like, for guiding and compressing a bundle of fibres | |
DE19807511A1 (en) | Machine for drying and fixing fabric piecegoods | |
EP0107828B1 (en) | Drawing frame | |
EP1920091B1 (en) | Drafting system for fabricating fibrous material | |
DE2729167C2 (en) | Device for fiber formation from a mineral melt | |
DE102012204443A1 (en) | A fiber processing apparatus of the tobacco processing industry and a process for the preparation of finite fibers for producing a fiber strand of the tobacco processing industry | |
CH691861A5 (en) | A device for cleaning fiber material at an open-end spinning aggregate. | |
DE19805398A1 (en) | Sliver condenser stage at spinning assembly | |
CH627798A5 (en) | PNEUMATIC CLEANING DEVICE ON THE INLET TABLE OF A SPINNING MACHINE. | |
DE2641897C2 (en) | Fiber opening device | |
EP2986765B1 (en) | Drawing system for a knitting machine | |
DE69801889T2 (en) | DEVICE FOR FORMING A FIBER FLAKE, IN PARTICULAR FOR FEEDING A TEXTILE MACHINE LIKE A CARD | |
DE10137004A1 (en) | Spinning machine with a variety of spinning positions | |
DE10106891A1 (en) | Condensing stage for drawn sliver, at a drawing unit, has a recessed zone at the suction tube body extending into an open gutter between spinning stations, for a mobile blower to clear any loose fibers/debris | |
EP1654407B1 (en) | Nonwoven guiding device for a textile machine, and associated textile machine | |
DE19522995A1 (en) | Fibre sepn. from conveying air stream esp. in card chute feed - has high air velocities in air separation chambers to reduce trash deposits | |
WO2008110137A1 (en) | Device having a stretching unit for processing fibrous material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080226 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
19U | Interruption of proceedings before grant |
Effective date: 20100226 |
|
19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20100701 |
|
17Q | First examination report despatched |
Effective date: 20120327 |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D01H 5/72 20060101ALI20140325BHEP Ipc: D01H 5/60 20060101AFI20140325BHEP Ipc: D01H 5/56 20060101ALI20140325BHEP |
|
INTG | Intention to grant announced |
Effective date: 20140409 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
INTG | Intention to grant announced |
Effective date: 20140924 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 695841 Country of ref document: AT Kind code of ref document: T Effective date: 20141115 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ROTTMANN, ZIMMERMANN + PARTNER AG, CH |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006014069 Country of ref document: DE Effective date: 20141224 |
|
RIN2 | Information on inventor provided after grant (corrected) |
Inventor name: KOENIG, REINHARD Inventor name: KOENIG, GEORG |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2529177 Country of ref document: ES Kind code of ref document: T3 Effective date: 20150217 |
|
REG | Reference to a national code |
Ref country code: PL Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150312 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150312 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150213 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006014069 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150830 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150830 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160429 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150830 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150831 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 695841 Country of ref document: AT Kind code of ref document: T Effective date: 20150830 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: NEW ADDRESS: GARTENSTRASSE 28 A, 5400 BADEN (CH) |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20060830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141112 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20190919 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20190823 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20220110 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200830 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CZ Payment date: 20230818 Year of fee payment: 18 Ref country code: CH Payment date: 20230902 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230823 Year of fee payment: 18 |