EP2451999B1 - Kammsegment für einen kreiskamm - Google Patents

Kammsegment für einen kreiskamm Download PDF

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Publication number
EP2451999B1
EP2451999B1 EP10727407.8A EP10727407A EP2451999B1 EP 2451999 B1 EP2451999 B1 EP 2451999B1 EP 10727407 A EP10727407 A EP 10727407A EP 2451999 B1 EP2451999 B1 EP 2451999B1
Authority
EP
European Patent Office
Prior art keywords
teeth
comb
comb segment
row
tooth
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.)
Active
Application number
EP10727407.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2451999A1 (de
Inventor
Friedrich Henninger
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.)
Staedtler and Uhl KG
Original Assignee
Staedtler and Uhl KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Staedtler and Uhl KG filed Critical Staedtler and Uhl KG
Publication of EP2451999A1 publication Critical patent/EP2451999A1/de
Application granted granted Critical
Publication of EP2451999B1 publication Critical patent/EP2451999B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • D01G19/105—Combing cylinders

Definitions

  • the invention relates to a comb segment for a circular comb of a combing machine for combing cotton.
  • Combs for use in combing machines are known by prior public use, wherein on a base body at least one comb element is arranged, which is in engagement with the cotton fibers to be combed.
  • the active combing area of a circular comb can be, for example, 78 °, 90 °, 111 ° or 180 ° of the circumference of the generatrix of the circular comb or of the entire circumference.
  • a circular comb with an active combing area along its entire circumference is referred to as a 360 ° circle comb.
  • Needles, pin strips, sawtooth wire sections, comb teeth or sawtooth parts are used as comb elements, with an arrangement of a plurality of comb elements also being referred to as a comb segment or bolt.
  • the DE 30 07 245 A1 discloses a comb segment slidable on a combing roll and positively held thereon. From the DE 39 04 178 C2 is a comb segment with juxtaposed comb elements known, each having a different number of teeth. From the EP 1 533 404 A1 is a fastened on a combing comb segment with integrally manufactured comb elements known.
  • a comb segment has z. B. several, in the direction of a rotation axis of the combing roller juxtaposed comb elements with teeth, z. B. in the form of statge leopardstanz sculpture or toothed disks.
  • a combing effect of the comb segment can be influenced.
  • the combing effect on the fibers is ensured by the engagement of the teeth in the fibers to be combed, wherein the combing effect increases, for example, with increasing number of teeth per comb segment and thus a number of engagement of the teeth in the fiber.
  • the increase in the number of teeth on a comb segment generally leads to a denser arrangement on a lateral surface of the comb segment. This results in a poorer accessibility of spaces between adjacent teeth and / or between adjacent rows of teeth of a comb segment, so that the cleaning of a comb segment with high tooth density is insufficient or not possible.
  • a desired high combing effect on the one hand and good accessibility of the interstices for cleaning, i. for removing refined lammter particles and / or fiber components on the other hand, conflicting design requirements for a comb segment.
  • a comb segment according to the invention can be mounted on a combing roller, rotatable about its axis of rotation in a rotational direction and has a plurality of rows of teeth arranged next to one another in the direction of the axis of rotation.
  • the rows of teeth comprise several in a row circumferential direction next to each other arranged teeth, wherein the rows of teeth are arranged obliquely relative to the axis of rotation, so that the row circumferential direction, which corresponds to a circumferential direction of the teeth, include an angle of attack ⁇ .
  • At least one spacer is provided between two adjacent rows of teeth, so that a tooth row spacing measured between two adjacent rows of teeth perpendicular to the row circumferential direction varies, for example resulting from the respective thicknesses of the spacers.
  • cleaning of the comb segment according to the invention is possible, for example, by brushing, the bristles of which allow for brushing out combed fibers in regions, in particular of larger tooth row distances, between the rows of teeth.
  • the comb segment enables the multiple use of similar intermediate discs for the realization of cyclically varying tooth row distances. As a result, the comb segment can be produced quickly and inexpensively.
  • the cyclic interplay between combing effect and no combing effect on the cotton fibers to be combed produces an improved combing result.
  • a comb segment with toothless spacers as a spacer according to claim 2 allows a flexible and rapid change of the tooth row distances by changing the intermediate washers used.
  • a certain tooth row spacing can be set, for example, by means of an intermediate disc with the corresponding disc thickness or by means of a plurality of intermediate discs, each with a smaller disc thickness.
  • a comb segment according to claim 3 has a reduced number of components and is therefore particularly fast and inexpensive to install. Furthermore, such a comb segment with integrally molded spacers is particularly robust against mechanical stress.
  • a comb segment according to claim 4 allows z. As the multiple use of similar intermediate discs for the realization of varying tooth spacing. As a result, such a comb segment can be manufactured and installed quickly and inexpensively. In addition, the interaction between combing effect and no combing effect on the cotton fibers to be combed produces an improved combing result.
  • An arrangement of rows of teeth on a combing roller with an angle of attack ⁇ according to claim 6 is particularly advantageous for enabling a repeated engagement of teeth of one and the same comb segment in a cotton fiber and then achieved a particularly good combing effect.
  • the comparatively large inclination increases the frequency of change between areas with a high combing effect and areas with little or no combing effect.
  • a comb segment with a meshing number according to claim 10 causes an improved combing result.
  • FIG. 1 illustrated circular comb 1 has a hollow cylindrical combing roll 2 with a rotation axis 3.
  • a total of ten comb segments 5 are mounted in the direction of rotation 4.
  • the comb segments 5 define with their axial extent parallel to the axis of rotation 3 a combing of the circular comb 1.
  • Each comb segment 5 comprises a plurality of identical stamped comb elements 6, which are lined up substantially one behind the other in the direction of the axis of rotation 3, wherein each comb element 6 has a plurality of teeth 7.
  • the comb elements 6 are preassembled in the embodiment shown to form a so-called latch and secured to the combing roller 2 by clamping.
  • the bars can also be connected by screws with the combing roll 2. It is also possible not vorzumontieren the comb elements 6, but set up in a grouped arrangement directly on the combing roller 2 and to stick with this.
  • a comb segment 5 is according to Fig. 2 unwound along the direction of rotation 4 about the axis of rotation 3 of the combing roller 2 shown schematically.
  • the comb segment 5 comprises a plurality of rows of teeth 6 arranged next to one another in the direction of the axis of rotation 3, wherein a spacer with a slice thickness is arranged between two adjacent rows of teeth 6, the slice thicknesses of the spacers varying.
  • the rows of teeth as separate toothed discs 6 and the spacers as separate components in the form of toothless intermediate discs 8, 9 are formed. It is possible to arrange two toothed discs 6 directly next to one another, ie without an intermediate disc 8, 9 on the latch 5. Instead of the thicker intermediate disk 9, two or more thin intermediate disks 8 may be arranged between the toothed disks 6.
  • the toothed disks 6 have, in a row-circumferential direction 10, twenty-one teeth 7 arranged side by side.
  • the number of teeth 7 is to be understood only as an example.
  • a circumferential direction of the teeth 7 is fixed, which is identical to the direction of rotation 4 of the combing roller 2.
  • the toothed disks 6 are arranged obliquely relative to the axis of rotation 3, so that the row circumferential direction 10 and the direction of rotation 4 include an angle of attack ⁇ .
  • Tooth spacing D1, D2 between two adjacent toothed disks 6 are determined by the arranged between the toothed discs 6 washers 8, 9.
  • the Zahn #2nabexcellent D1, D2 vary in the in Fig. 2 shown comb segment 5 cyclically due to the different thicknesses of the intermediate discs 8, 9th
  • the tooth row spacings D1 and D2 correspond to the thicknesses of the intermediate discs 8 and 9, respectively.
  • the thicknesses of the toothed discs 6 are respectively in the illustrated embodiment 0.3 mm.
  • more than two different tooth row distances can be provided and / or several successive toothed discs 6 can be arranged in the narrow tooth row spacing D1, before a large tooth row spacing D2 follows.
  • the sequence of varying tooth row distances is repeated in particular cyclically.
  • cyclical sequence of a narrow row spacing D1 and a wide row spacing D2 can be cleaned very well, since the wide tooth row spacing D2, which allows engagement of bristles of a cleaning brush in the formed between the teeth 7 adjacent toothed discs 6 spaces or favors occurs relatively frequently.
  • the teeth 7 of a toothed disc 6 are arranged uniformly spaced, ie measured in the circumferential direction 10 circumferential distances d1, d2 between two adjacent teeth 7 of a toothed disc 6 are the same size everywhere.
  • comb segment 5 are each arranged along one of the toothed discs 6 each twenty-one teeth 7.
  • a disc set 11 is formed, which in the embodiment according to Fig. 2 from the series arrangement of a first toothed disc 6, a thin intermediate disc 8, a second toothed disc 6 and a thick intermediate disc 9 composed.
  • the comb segment 5 comprises several such disk sets 11 arranged one behind the other in the direction of the axis of rotation 3. Each disk set 11 has a set thickness S in the direction of the axis of rotation 3. It is also possible that the pulley set 11 has two toothed pulleys 6 and only one intermediate pulley 8 has.
  • a set transition length b measured in the direction of rotation 4 is determined by the pulley set 11 and a fiber 12 to be intermeshed, by setting the set transition length b as the length along the direction of rotation 4, within which the fiber 12 to be intermingled also runs parallel to the direction of rotation 4 ,
  • the tooth pulley length B is the length of the toothed pulleys 6 projected in the direction of rotation 4.
  • An average tooth mesh number A which describes the number of tooth engagements of the comb segment 5 in the fiber 12 to be combed during a combing operation, is the ratio of the tooth pulley length B to that Sentence transition length b defined.
  • a specific tooth density is determined by a number of teeth 7 with respect to a lateral surface 13.
  • the greater the specific tooth density the higher the combing effect of the comb segment 5 is.
  • the specific tooth density is also referred to as peak density.
  • This in Fig. 2 shown comb segment 5 has a mean specific tooth density, ie a number of teeth 7 of all toothed disks 6 relative to the lateral surface 13 of the entire comb segment 5, of 1.72 teeth / mm 2 .
  • the average specific tooth density is 1.52 teeth / mm 2 .
  • the specific tooth density is higher in regions on the lateral surface 13 of the comb segment 5.
  • the maximum specific tooth density given in these areas is at least 1.7 teeth / mm 2 and especially 1.8 to 2.5 teeth / mm 2 .
  • the maximum specific tooth density is 2.1 teeth / mm 2 .
  • a plurality of fibers 12 running parallel to one another in the direction of rotation 4 are pulled in by the teeth 7 of the comb segment 5.
  • a fiber 12 depending on their position along the axis of rotation 3, the tooth 7 dodge, so that a local deflection of the fiber 12 takes place about the tooth 7.
  • the fiber 7, without departing from the fiber direction, between two teeth 7 are pulled.
  • the fiber 12 passes after the tooth engagement and as a result of the inclination of the toothed discs 6, the thicker washer 9. While the fiber 12 is above the toothless washer 9, there is no meshing and thus no combing action.
  • FIG. 2 the different areas with low and high combing effect are represented by rectangles B1 and B2 shown in dashed lines.
  • the area B1 there is no or only a slight combing effect, since there is no or only occasional engagement of the teeth 7 in the fibers 12, whereas the area B2 has a high combing effect, which is characterized by the comparatively high number of engagements of the teeth 7 in FIG Fibers 12 is caused.
  • a fiber 12 to be combing passes through several such regions B1 and B2 with a low or high combing effect in an alternating sequence.
  • an advantageous intermittent combing effect results.
  • FIG. 3 shows in one too Fig. 2 Similarly, another embodiment of a comb segment 5.
  • Components that correspond to those described above with reference to the Fig. 1 and 2 have the same reference numbers and will not be discussed again in detail.
  • the comb segment 5 after Fig. 3 corresponds to the one after Fig. 2 , wherein as a spacer also an intermediate disc 9a is used, with respect to the intermediate disc 9 after Fig. 2 has a greater thickness and thus the tooth row spacing D2 between two adjacent toothed discs 6a is increased.
  • the tooth row spacing D2 is 0.6 mm.
  • the ratio of the two different tooth disk spacings D1, D2 to one another is greater than in the comb segment 5 according to FIG Fig. 1 and is 6.
  • an embodiment is possible in which the same intermediate disc 9 with a thickness of 0.3 mm as in the embodiment according to Fig. 2 is provided.
  • the toothed discs 6a ten teeth 7 are arranged in each case.
  • a spacer is integrally connected to the teeth of a row of teeth.
  • the spacer is formed as a lateral approach to a tooth of a row of teeth bearing foot region of a comb element.
  • the lateral approach can be made for example by embossing, grinding or other molding processes in one piece. This makes it possible to avoid washers and to reduce the number of components for a comb segment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP10727407.8A 2009-07-10 2010-06-23 Kammsegment für einen kreiskamm Active EP2451999B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009032796.7A DE102009032796B4 (de) 2009-07-10 2009-07-10 Kammsegment für einen Kreiskamm
PCT/EP2010/058917 WO2011003741A1 (de) 2009-07-10 2010-06-23 Kammsegment für einen kreiskamm

Publications (2)

Publication Number Publication Date
EP2451999A1 EP2451999A1 (de) 2012-05-16
EP2451999B1 true EP2451999B1 (de) 2015-01-28

Family

ID=42668112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10727407.8A Active EP2451999B1 (de) 2009-07-10 2010-06-23 Kammsegment für einen kreiskamm

Country Status (5)

Country Link
EP (1) EP2451999B1 (zh)
JP (1) JP5521039B2 (zh)
CN (1) CN102471947B (zh)
DE (1) DE102009032796B4 (zh)
WO (1) WO2011003741A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995170A (zh) * 2012-10-18 2013-03-27 吴江市元通纺织品有限公司 一种可变针座
CN102926042B (zh) * 2012-11-21 2015-03-04 苏州奥然日用品有限公司 一种可调整针座
CN104805541A (zh) * 2015-05-11 2015-07-29 孙鹏子 不等齿密梳理针布

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4527294Y1 (zh) * 1967-03-09 1970-10-22
DE3007245C2 (de) * 1980-02-27 1982-08-12 Staedtler & Uhl, 8540 Schwabach Zahnbesatz für Walzen und Tragsegmente von Textilmaschinen
JPH0315554Y2 (zh) * 1988-04-18 1991-04-04
DE3904178A1 (de) 1989-02-11 1990-08-16 Staedtler & Uhl Garnitur fuer kaemmwalzen, insbesondere fuer woll- und baumwollkaemm-maschinen
CH682494A5 (de) * 1990-06-25 1993-09-30 Rieter Ag Maschf Nadelwalze für eine Textilmaschine.
DE4125035A1 (de) * 1991-07-29 1993-02-04 Truetzschler & Co Vorrichtung an einer karde fuer textilfasern, z. b. baumwolle, chemiefasern u. dgl.
DE10033169B4 (de) * 1999-07-24 2016-12-22 Maschinenfabrik Rieter Ag Fixkamm einer Kämmaschine
EP1333113A1 (de) * 2002-01-31 2003-08-06 Graf + Cie Ag Sägezahndraht für die Kamm-Garnitur in einer Kämmmaschine
DE502004006649D1 (de) * 2003-11-14 2008-05-08 Rieter Ag Maschf Rundkamm mit Garniturelementen

Also Published As

Publication number Publication date
CN102471947A (zh) 2012-05-23
DE102009032796A1 (de) 2011-01-13
WO2011003741A1 (de) 2011-01-13
JP2012532257A (ja) 2012-12-13
DE102009032796B4 (de) 2017-02-16
JP5521039B2 (ja) 2014-06-11
CN102471947B (zh) 2014-07-30
EP2451999A1 (de) 2012-05-16

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