EP1313901B2 - Vorrichtung, wie karde oder krempel für die faserverarbeitung - Google Patents

Vorrichtung, wie karde oder krempel für die faserverarbeitung Download PDF

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Publication number
EP1313901B2
EP1313901B2 EP01960634A EP01960634A EP1313901B2 EP 1313901 B2 EP1313901 B2 EP 1313901B2 EP 01960634 A EP01960634 A EP 01960634A EP 01960634 A EP01960634 A EP 01960634A EP 1313901 B2 EP1313901 B2 EP 1313901B2
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EP
European Patent Office
Prior art keywords
carding
toothed
teeth
segment
carding segment
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.)
Expired - Lifetime
Application number
EP01960634A
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German (de)
English (en)
French (fr)
Other versions
EP1313901B1 (de
EP1313901A1 (de
Inventor
Hermann Maidel
Peter Artzt
Volker Jehle
Bernhard Bocht
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.)
Truetzschler Card Clothing GmbH
Original Assignee
Truetzschler Card Clothing 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
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Application filed by Truetzschler Card Clothing GmbH filed Critical Truetzschler Card Clothing GmbH
Publication of EP1313901A1 publication Critical patent/EP1313901A1/de
Publication of EP1313901B1 publication Critical patent/EP1313901B1/de
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Publication of EP1313901B2 publication Critical patent/EP1313901B2/de
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips

Definitions

  • the present invention relates to a carding or carding machine, with a garniturbe choirten roller and at least two at least over a range of the roll circumference and rotationally successively arranged Kardiersegmenten, each provided with a toothed set, wherein toothed sets of Kardiersegmente are designed differently.
  • Such a card is for example from the DE-OS 2,226,914 known.
  • the carding segments described there have different stocking densities.
  • Such devices are used to clean, open and parallelize raw fibers, eg. B. cotton.
  • the starting material (flake mold) is fed via a ⁇ ffnerwalzenech a garniturbestten roller (for example, Tambour) and taken by this at its periphery in the direction of rotation.
  • the roller is equipped with a large number of saw teeth.
  • this toothed set is produced by producing a sawtooth wire, which is then unwound on the outer circumference of the roll.
  • the tooth shapes can be shaped differently for the most diverse applications. Mainly, however, the tooth tips point in the direction of rotation.
  • carding segments are arranged at least over part of the circumference of the roll.
  • a carding segment extends over the entire width of the roller.
  • the bottom of a carding segment is arcuately adapted to the outer periphery of the garnitube Glaten roller and also has a toothed set.
  • the teeth are arranged in rows of teeth one behind the other and are also produced by inserting a sawtooth wire.
  • the tooth shape is similar to the tooth shape on the garniturbe conferenceten roller, wherein the tooth tips facing counter to the direction of rotation of the garniturbe Glaten roller.
  • the carding segments are moved up to the roller so far that an opening, combing or parallelizing process is performed on the fibers.
  • the still unopened fibers were processed with a smaller impact, if possible, than with an increasing degree of opening. Presumably, it was endeavored to work the fibers more intensively at the point where the degree of opening was already more advanced.
  • the toothed sets of the carding segments cause the different processing effect from intense to less intense without having to influence other parameters. Due to the dependence on simple geometrical relationships can be made in a very straightforward and cost-effective manner for different fiber types optimal assembly with carding segments. It can thus be used on one and the same device, carding or carding, a whole range of different tooth shapes. It has been found that a very effective fiber processing or processing with relatively high speeds and a very good result can be carried out by this configuration. In particular, the tendency of the Zahngamitur due to the tooth geometry to pull away fibers from the roller, to be reduced, so that the fibers are conveyed optimally in the machining gap between Kardiersegment and roller. A tooth set which is optimally adapted to the degree of opening of the fibers can be recognized by the uniform wear of the machining height of the teeth.
  • a very simple variant of the embodiment of the present invention is that the teeth + the teeth sets have a cutting angle ⁇ , which is greater, at least in the middle in a front carding segment than in a subsequent carding segment. Due to the design, the tooth sets often have hundreds of teeth. In most cases, although a single comparison of a tooth of a Zahngamitur a Kardiersegments would be sufficient with a tooth of a toothed set of a subsequent carding segment. For the effect, however, it is completely sufficient if on average it appears that the front carding segment has a more aggressive engagement than the subsequent carding segment. In this respect, an average cutting angle ⁇ is used.
  • the cutting angle ⁇ spans between the rake face or here fiber processing surface of the tooth and an imaginary line extending from the tooth tip to the center of the roller. This means that the front carding segments act on the fibers at a shallower angle, whereas in the subsequent carding segments, the working surfaces of the teeth continue to line up against the fiber.
  • the toothed clothing of the first carding segment plucks, pulls or tightens the fibers more strongly than subsequent carding segments.
  • the ever smaller angle ⁇ has the consequence that the fibers no longer penetrate with the intensity or depth in the tooth region of the toothed set. Rather, it causes the fibers are no longer so strong tend to penetrate into the processing area of the tooth set of Kardiersegmente due to the ever dulling tooth shape. Experiments have shown that this also makes the fibers better over the entire height of the processing area of the teeth, which is particularly evident from the wear pattern.
  • the teeth wear substantially evenly over their entire height of the machining zone. Neither the tip nor the foot of the machining zone are subject to greater wear.
  • the teeth of the tooth sets have an area which is spanned between the outer cutting area contour line comprising the cutting area and an imaginary degree of connection perpendicularly intersecting the roller axis and the tooth tip. this being greater, at least on average, in the case of a front carding segment than in a subsequent carding segment.
  • This means that the area fraction below the processing surface of the tooth is greater at the beginning of the carding process than subsequently, so that presumably more fibers can initially penetrate into the processing area of the toothed segments of the carding segments than in subsequent carding segments.
  • the fibers are pressed with increasing opening degree by the geometry of the tooth forms of the carding segments more and more in the direction of the roller. As a result, the fibers are optimally transported on average in the carding gap between the respective carding segment and the roller. The influence that the teeth of the carding segment have on the fibers is then usually lower due to this geometrical adaptation.
  • teeth of the toothed sets have a cutting area and a foot area and the width of the foot area is greater in the case of a front carding segment than in a subsequent carding segment.
  • this variant can be exploited to arrange the teeth of the various carding segments offset one behind the other.
  • a tooth pitch of the teeth of the toothed sets is greater in a front carding segment than in a subsequent carding segment.
  • the term tooth pitch is understood to mean the distance from one tooth tip to the next tooth tip in the carding direction. This means that with subsequent carding segments, the teeth are closer together.
  • the teeth of the toothed fittings may have a height that is greater, at least on average, in a front carding segment than in a subsequent carding segment. Again, it depends again essentially on the average height of the teeth of a tooth set. The lower height in subsequent carding segments automatically provides less aggressive engagement when e.g. the carding segments are set at the same height with respect to the roller.
  • a further improvement of the parallelization and processing of the fibers can be achieved in that the teeth or formed by the teeth, extending in the direction of rotation rows of teeth of the Zahngamitur a front Kardiersegments a have lateral offset to the teeth or formed by the teeth, extending in the direction of rotation tooth rows of tooth sets of the subsequent Kardiersegments.
  • the teeth of a single Kardiersegments can be arranged in each case seen in the carding or rotation of the roller in a row one behind the other.
  • the teeth of the subsequent carding segment are to be positioned offset for this purpose, so that a processing of the fibers over the entire width can take place independent of the respective carding predetermined paths.
  • the result of the width of a tooth of the tooth set of a front carding segment divided by the width of a tooth of the Zahngamitur the subsequent Kardiersegments be unequal to an integer. This automatically ensures that it is impossible to arrange the teeth from one another in succession from a front to a subsequent carding segment. The teeth must inevitably always be offset due to the odd pitch to each other.
  • a further embodiment variant provides that the teeth of a carding segment arranged one behind the other in the direction of rotation are offset relative to one another.
  • dirt separation devices can be arranged at least between some carding segments. These can eg according to the DE 19852562 be designed. This is usually a guide bar, which is adjustable in height and a subsequent Ausscheidemesser which acts on the fiber at a certain angle and removes dirt particles by the impact effect.
  • suction devices or a suction device are provided, which removes fiber fragments and dirt particles from the carding area.
  • a suction device which removes fiber fragments and dirt particles from the carding area.
  • the carding segments of the lid have a spacing between the shoulder and the tooth tips in the tooth sets there, which is smaller than the distance between the shoulder and the associated tooth tips in the toothed set of the spool.
  • the invention relates to a carding segment for a device, such as carding or carding, for the fiber processing, which is provided with a Zahngamitur.
  • the carding segment is characterized in that the tooth geometry of the Zahngamitur is configured differently in the machine direction and an engagement of a front in the machining direction of the toothed area an equal or greater impact on an individual fiber to be processed as or as the engagement of a downstream in the processing direction of the toothed clothing.
  • the desired effect can also be achieved with such a carding segment within the processing area of the carding segment itself.
  • relatively large carding segments would be conceivable which can bring about this effect overall.
  • the change in tooth geometry within this carding segment can be made in the same way as the previous changes made from carding segment to carding segment. It is therefore possible changes in the angle, the height, etc. within a single Kardiersegmentes.
  • the invention also relates to a method according to claim 13.
  • the method according to the invention is carried out as a function of the degree of opening of the fibers and the wear on the tooth sets in contrast to the carding methods used so far.
  • the fibers are optimally conveyed and processed in the machining gap between the carding segments and the roller. Experiments have shown that this can achieve very good results with improved wear behavior. Why so far in the prior art has always been reversed and the fibers were processed with increasing degree of opening with greater impact or aggressiveness, can be in hindsight only due to an obvious misconception answer.
  • a carding device 1 in a plane perpendicular to a rotation axis A of a carding roller or a drum 2 is shown.
  • the lateral surface 3 of the spool 2 is provided with a garnish 4 for processing fiber material.
  • the set 4 consists of wound toothed wire, wherein the individual teeth point with their tips in the direction of rotation or carding B.
  • the design of such sets 4 is well known in the art and will not be described in detail here.
  • a ⁇ ffnerwalze 5 On the left side is shown schematically a ⁇ ffnerwalze 5, which feeds the Fasern the drum 2. Again, known ⁇ ffnerwalzenvorraumen can be used. There are enough examples in the prior art.
  • pickup roller 6 On the opposite side is a pickup roller 6, which is schematically for the Abnähmevorraum that remove the carded fibers back from the spool 2 and remove for further processing. Also with respect to the removal devices 6, there are enough examples in the prior art that need not be discussed in detail.
  • each of these Kardiersegmente 7 to 10 is arranged at some distance above the outer surface 3 of the main cylinder 2.
  • the segments are also adapted to the contour of the spool 2 and therefore extend arcuately, with its underside as far as possible being arranged at the same distance from the lateral surface 3.
  • these carding segments 7 to 10 are provided with a tooth set 12 to 15. Similar to the garnish 4 of the spool 2, these sprockets consist of juxtaposed toothed wire sections. The basic design and arrangement of such sets of carding is also known in the art.
  • Fig. 1 Essentially new and inventive in the device according to the Fig. 1 is the fact that the teeth sets 12-15 process the fibers with decreasing aggressiveness in the order mentioned here. In the present case this means that there are four different levels of aggressiveness. Of course, there would also be the possibility that two carding segments arranged one behind the other would work the fibers with the same aggressiveness, and then the subsequent carding segments would again be less aggressive. In addition, only carding segments 7 to 10 are shown for reasons of simplification in this variant. Usually, other processing devices could still be arranged on the circumference of the spool 2. In particular, when the opener roller 5 and the take-off roller 6 are arranged further down on the circumference of the main cylinder 2, a larger work area is available, which allows a further arrangement of additional carding segments or other processing equipment.
  • Each Kardiersegment 7 to 10 can be regarded as a kind of cover piece, which is arranged floating at a small distance above the spool 2 and in contrast to the drum 2 is stationary. Accordingly, between the toothed set 4 of the spool 2 and the toothed sets 12 to 15 of the carding segments 7 to 10 there is a machining gap 16 for carding the fibers, not shown.
  • a separation channel 17 is provided for the removal of impurities and fiber fragments.
  • an L-shaped, strip-like hold-down 18 is present, which pushes the coming out of the machining gap 16 fibers slightly down so that they then expand explosively outward and come into contact with a Ausscheidemesser 19.
  • the Ausscheidemesser 19 can take a variety of angular positions, so that with different cutting angles, the excretion can take place.
  • the height of the Ausscheidemessers 19 on the Zahngamitur the spool 2 can be adjusted. Also, the height of the blank holder 18 is adjustable according to the spool 2 to change the distance.
  • the Fig. 2 represents an enlarged view of a small section of the toothed set of Kardiersegments 7.
  • the Zahngamitur 12 is turned upside down.
  • the individual teeth 20 of the toothed set 12 are, at least as long as they are arranged in a row, made of a common steel wire.
  • Teeth 20 are shown in the form of a sawtooth profile.
  • each tooth 20 has a wedge angle ⁇ and a cutting angle ⁇ .
  • the cutting angle ⁇ spans between a tangent to the chip or machining surface 21 and a line 22 whose course is defined by the shortest connection between the tooth tip 23 and the axis A of the main cylinder 2. These ratios are of course with built-in carding 7.
  • the wedge angle ⁇ is usually less than 45 °, so that relatively sharp teeth 20 are generated.
  • the distance t between a tooth tip 23 to the next tooth tip 23 of a row of teeth is referred to in the present case as a tooth pitch. In most cases, hundreds of these teeth 20 are attached to the underside 11 of a carding element 7-10.
  • Fig. 3 is a section along the line III-III in Fig. 2 to see through a toothed wire 24.
  • a tooth 20 in the present case the entire in Fig. 3 shown construction with the height h understood.
  • This tooth 20 is subdivided into an upper cutting region 25 with the height h s and a lower foot region 26.
  • the foot region 26 is wider than the cutting region 25, so that, with the toothed wires 24 arranged next to one another, the cutting regions 25 have a lateral spacing from one another.
  • the cutting region 25 extends along one side of the toothed wire 24 to the tooth tip 23 and merges substantially seamlessly into the foot region 26, whereas on the other side the transition takes place by means of a step 27 in the foot region 26.
  • the foot region 26 has a width F st . This foot width F st ultimately ensures the distance between the cutting areas 25 of a toothed set.
  • the foot region 26 serves for anchoring the toothed wires on the underside 11 of the carding segments 7 to 10.
  • the tooth pitch t also decreases from carding segment to carding segment in direction B. This means that the tooth pitch t in the carding segment 7 is greater than the carding segment 8, the carding segment 8 is larger than the carding 9 and the carding segment 9 is greater than the carding 10. The distance between the teeth 20 is thus smaller from carding segment to carding segment.
  • the height h s of the cutting area 25 in carding direction B decreases from carding segment to carding segment. Specifically, this means that the height h s in the carding segment 7 is greater than in the carding segment 8, the carding segment 8 is greater than the carding segment 9 and the carding segment 9 is greater than the carding segment 10. This also reduces the total height h of the teeth 20th from carding segment to carding segment.
  • the carding segment 7 works more aggressively than the carding segment 8
  • the carding segment 8 more aggressive than the carding segment 9
  • the carding 9 more aggressive Aggressiveness is the intensity of the effect of the carding segments on the fibers.
  • all these measures are used in combination. However, it is quite possible to change only one of these dimensions.
  • This surface piece F can be determined for each tooth of the toothed sets 12, 13, 14 and 15. Both in the change of the angle ⁇ and in the change of other parameters according to the teaching of this invention, this surface piece F is always smaller in a subsequent carding segment than in a previous carding segment.
  • the fiber material still passes through the working gaps 16 between the carding segments 8 and 9 or 10 and the spool 2, wherein the carding or parallelization of the fibers takes place in each case with decreasing intensity.
  • the intensity decreases due to the above-described embodiment of the toothed sets 12 to 15 on the carding segments 7 to 10.
  • the parallelized and entrained fibers are removed via the doffer roller 6 again from the spool 2 and removed for further processing.
  • Fig. 5 the lower sides of two consecutively arranged carding segments 7 and 8 are shown.
  • toothed wires are used with a plurality of teeth 20, which extend substantially parallel to a plane perpendicular to the axis A intersecting plane.
  • the tooth tips of the teeth 20 are in accordance with the view in Fig. 5 to the left.
  • the rows of teeth of the carding segment 7 are arranged offset to the rows of teeth of the carding segments 8. This is based on the Fig. 6 shown by a schematic front view of the teeth.
  • the two front teeth 20 symbolize two adjacently arranged rows of teeth of the carding segment 7 and the tooth 20 between them and behind symbolizes a row of teeth of the underlying carding segment 8. It is easy to see that the cutting areas of these teeth 20 are offset from one another, so that in each case different Regions of the fibers are processed by the carding segments 7 and 8. This offset can also be achieved by the foot width F st of the previous carding segment 7 divided by the foot width F st of the subsequent carding segment 8 not giving an integer (F stn / F stn + 1 ⁇ integer). From the Fig. 5 It can also be seen that the envelope h s of the cutting region 25 of the teeth of the carding segment 8 located behind it is smaller than the height h s of the teeth 20 of the carding segment 7 arranged in front of it.
  • FIG. 7 another embodiment of a carding segment is shown.
  • this tooth rows of tooth sets are arranged obliquely, so that the processing within a carding segment 7 to 10 extends automatically over the entire width of the spool 2.
  • An alignment with respect to a subsequent carding segment 8, 9 or 10 is not absolutely necessary.
  • Fig. 8 a particular embodiment of a carding segment 30 is described.
  • This Kardiersegment 30 is provided with a changing in the direction B tooth set 31.
  • Fig. 8 schematically shows that the front teeth 20 in the machining direction have a larger cutting angle ⁇ 1 than the subsequent teeth.
  • the cutting angle ⁇ 1 is therefore greater than the cutting angle ⁇ 2 and the cutting angle ⁇ 2 greater than the cutting angle ⁇ 3. Due to the fact that the cutting angle ⁇ 4 is negative, the cutting angle ⁇ 3 is greater than the cutting angle ⁇ 4.
  • the Fig. 8 is merely a schematic representation, which is why the change in the tooth shape over a larger area could be done as well as slower.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP01960634A 2000-08-28 2001-08-07 Vorrichtung, wie karde oder krempel für die faserverarbeitung Expired - Lifetime EP1313901B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10042205 2000-08-28
DE10042205A DE10042205B4 (de) 2000-08-28 2000-08-28 Vorrichtung wie Karde oder Krempel für die Faserverarbeitung
PCT/EP2001/009130 WO2002018683A1 (de) 2000-08-28 2001-08-07 Vorrichtung, wie karde oder krempel für die faserverarbeitung

Publications (3)

Publication Number Publication Date
EP1313901A1 EP1313901A1 (de) 2003-05-28
EP1313901B1 EP1313901B1 (de) 2008-08-06
EP1313901B2 true EP1313901B2 (de) 2011-06-01

Family

ID=7654044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01960634A Expired - Lifetime EP1313901B2 (de) 2000-08-28 2001-08-07 Vorrichtung, wie karde oder krempel für die faserverarbeitung

Country Status (6)

Country Link
US (1) US6996878B2 (es)
EP (1) EP1313901B2 (es)
AT (1) ATE403768T1 (es)
DE (2) DE10042205B4 (es)
ES (1) ES2311020T5 (es)
WO (1) WO2002018683A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014992B1 (en) * 1996-11-05 2006-03-21 Clinical Micro Sensors, Inc. Conductive oligomers attached to electrodes and nucleoside analogs
US6740518B1 (en) 1998-09-17 2004-05-25 Clinical Micro Sensors, Inc. Signal detection techniques for the detection of analytes
DE102004054653A1 (de) * 2004-11-11 2006-05-18 Rieter Ingolstadt Spinnereimaschinenbau Ag Auflöseeinrichung mit verbesserter Kontur
WO2011138322A1 (en) * 2010-05-04 2011-11-10 Nv Bekaert Sa Wire profile for card clothing
US9551092B2 (en) * 2014-07-29 2017-01-24 American Felt & Filter Company Multi-fiber carding apparatus and method
CH711742A1 (de) * 2015-11-12 2017-05-15 Graf + Cie Ag Garniturdraht.
CH713140A1 (de) * 2016-11-16 2018-05-31 Graf Cie Ag Garniturdraht.
CN112725964B (zh) * 2020-12-23 2022-10-14 宜宾天之华纺织科技有限公司 一种舒弹丝涡流纺生产工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH521454A (de) † 1970-06-03 1972-04-15 Graf & Co Ag Kardengarnitur
CH662824A5 (de) † 1984-02-14 1987-10-30 Graf & Co Ag Kardiersegment.
EP0388791A1 (de) † 1989-03-23 1990-09-26 Maschinenfabrik Rieter Ag Vorrichtung zum Ausscheiden von Schmutz aus einem Faservlies

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8430562U1 (de) * 1984-10-18 1985-02-21 Staedtler & Uhl, 8540 Schwabach Saegezahn-stanzteil als garnitur fuer ein kaemmsegment einer kammwalze fuer textilmaschinen
EP0403989B1 (de) * 1989-06-21 1993-11-24 Maschinenfabrik Rieter Ag Kardierelement
DE59005618D1 (de) * 1989-12-04 1994-06-09 Rieter Ag Maschf Verfahren und Vorrichtung zum Reinigen oder Kardieren von Textilfasern.
DE4125035A1 (de) * 1991-07-29 1993-02-04 Truetzschler & Co Vorrichtung an einer karde fuer textilfasern, z. b. baumwolle, chemiefasern u. dgl.
DE4422655A1 (de) * 1994-06-28 1996-01-04 Hollingsworth Gmbh Schmutzausscheider für Kardiervorrichtungen
DE19852562C1 (de) * 1998-11-13 2000-03-30 Hollingsworth Gmbh Schmutzausscheider
DE19936049A1 (de) * 1999-07-30 2001-02-01 Graf & Co Ag Rundkamm-Garnitur
US6804863B2 (en) * 2000-11-30 2004-10-19 Staedtler & Uhl Mounting for a combing cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH521454A (de) † 1970-06-03 1972-04-15 Graf & Co Ag Kardengarnitur
CH662824A5 (de) † 1984-02-14 1987-10-30 Graf & Co Ag Kardiersegment.
EP0388791A1 (de) † 1989-03-23 1990-09-26 Maschinenfabrik Rieter Ag Vorrichtung zum Ausscheiden von Schmutz aus einem Faservlies

Also Published As

Publication number Publication date
ATE403768T1 (de) 2008-08-15
ES2311020T3 (es) 2009-02-01
EP1313901B1 (de) 2008-08-06
DE50114197D1 (de) 2008-09-18
US6996878B2 (en) 2006-02-14
DE10042205B4 (de) 2004-10-21
DE10042205A1 (de) 2002-03-28
EP1313901A1 (de) 2003-05-28
WO2002018683A1 (de) 2002-03-07
US20040010890A1 (en) 2004-01-22
ES2311020T5 (es) 2012-01-26

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