WO2020194088A1 - Peigne circulaire pour peigneuse - Google Patents

Peigne circulaire pour peigneuse Download PDF

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Publication number
WO2020194088A1
WO2020194088A1 PCT/IB2020/051915 IB2020051915W WO2020194088A1 WO 2020194088 A1 WO2020194088 A1 WO 2020194088A1 IB 2020051915 W IB2020051915 W IB 2020051915W WO 2020194088 A1 WO2020194088 A1 WO 2020194088A1
Authority
WO
WIPO (PCT)
Prior art keywords
comb
rotation
spacer
tooth
round
Prior art date
Application number
PCT/IB2020/051915
Other languages
German (de)
English (en)
Inventor
Christian Dratva
Tobias BURKHARD
Original Assignee
Graf + Cie Ag
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 Graf + Cie Ag filed Critical Graf + Cie Ag
Publication of WO2020194088A1 publication Critical patent/WO2020194088A1/fr

Links

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
    • D01G19/105—Combing cylinders

Definitions

  • the present invention relates to a circular comb for a combing machine.
  • Round combs equipped with trimmings are used in the processing or finishing of fibers in combing machines to separate short fibers and neps as well as trash from the already carded raw fiber material.
  • the combing process causes the stack, d. H. the fiber length of the raw fiber material is standardized.
  • the comber is usually arranged between the card and the draw frame.
  • the tuft of a fiber tuft is soldered to a fiber ribbon made of already combed fibers, held by pliers and passed through by the teeth of the comb segments of the round comb.
  • the entire process of engaging the teeth of the comb segments in the tuft via combing and soldering to the engagement of the round comb in one of the tongs newly supplied tuft is referred to as "comb game”.
  • Conventional round combs have an essentially cylindrical base body with an axis of rotation, comb segments being attached to the circumference of the base body. While the combing machine is in operation, the circular comb rotates around its axis of rotation and is arranged with respect to the tongs in such a way that the teeth of the comb can pass through the tuft held by the tongs, but the main body does not solder the combed fiber beard when the circular comb is turned further with special needs.
  • the tooth tips of the tooth elements of the respective comb segment in the case of the round comb run in a corresponding corresponding angle in the direction of rotation and each have a tooth height so that the tooth elements form an overhanging tooth area starting from a tooth base.
  • This overhanging tooth area in conjunction with the tooth height allows a fiber to be combed to intervene in the respective tooth element of the comb segment and leads, in particular with increased fiber mass, to looping of the fibers around the respective teeth due to increased number of combing play. This wrapping of the fiber around the tooth can lead to fiber damage.
  • the invention is therefore based on the object of creating a circular comb that reduces the risk of fiber damage and reduces the degree of contamination of the Zahnele elements on the circular comb.
  • a circular comb for a combing machine with a base body and with an axis of rotation and a direction of rotation, at least two comb segments being attached to an outer surface of the base body and the comb segments having fittings best starting from side by side in the direction of the axis of rotation arranged tooth elements with tooth tips which have a tooth height.
  • a spacer with a length in the direction of the axis of rotation, a width in the direction of rotation and a height is provided on the base body between the comb segments or in the direction of rotation after the last comb segment, the comb segments being tangentially spaced apart by the spacer by its width .
  • the use of a spacer between at least two comb segments has the advantageous effect that the transition of the fibers during combing against the direction of rotation takes place more gently. This is mainly due to the fact that the spacer can mechanically compensate for the so-called barrier in the form of a crack, a notch or a compression. As a result, the fibers to be combed out are drawn in more evenly by the respective comb segment and thus on the one hand prevents fiber damage to the teeth themselves and on the other hand prevents the degree of contamination of the circular comb at the respective transitions.
  • the spacer is provided after the last comb segment, that is to say at the end of the clothing, when viewed in the direction of rotation.
  • the spacer supports in an advantageous manner that at the end of the set no fibers can still settle on the circular comb during the transfer from the circular comb to the downstream pair of tear-off cylinders, whereby the degree of contamination can be minimized considerably.
  • a spacer with a length in the direction of the axis of rotation, a width in the direction of rotation and a height are provided on the base body between the comb segments and after the last comb segment when viewed in the direction of rotation, i.e. at the end of the set.
  • the fiber to be combed between the transition of at least two comb segments and also at the end of the clothing each optimally leads, whereby the risk of soiling and fiber damage are minimized considerably.
  • the spacer preferably has a guide surface which is arranged on a side facing away from the axis of rotation.
  • the guide surface of the spacer on the side facing away from the axis of rotation of the circular comb has the premature effect that the fiber to be combed is gently guided in the direction of combing on the surface of the guide surface and also enables the fiber to be drawn into the tooth element without a jump between the comb segments. This significantly minimizes the risk of fiber damage and accordingly improves the combing work of the circular comb.
  • the guide surface preferably has a symmetrical and convex or concave or triangular shape in cross section.
  • the fiber guidance during the combing process can be adjusted with the circular comb so that the risk of fiber damage and the degree of contamination are kept as small as possible.
  • the guide surface has an asymmetrical roof shape with a shorter section and a longer section, the shorter section being arranged in front of the longer section when viewed in the direction of rotation.
  • the asymmetrical roof shape of the guide surface of the spacer allows optimal guidance of the fiber, seen against the direction of rotation, on the one hand when the fiber emerges from the one comb segment and on the other hand when entering the adjacent comb segment.
  • the transition of the fiber surface in that the shorter section is arranged in front of the longer section when viewed in the direction of rotation has the advantageous effect that the fiber to be combed can be optimally aligned on the longer section before the smaller section enables the fiber transfer into the adjacent comb segment.
  • the fiber is optimally optimized during the combing process with the clothing and, on the other hand, the risk of contamination and fiber damage is considerably minimized.
  • the longer section in front of the shorter section. It should be noted in particular that the length of the corresponding section is to be designed in such a way that the smooth and gentle guidance of the fiber is guaranteed at the transition from at least two adjacent comb segments in order to reduce the risk of fiber damage and the degree of soiling minimize.
  • the two sections of the guide surface each preferably form an angle ⁇ of 50 ° to 70 °, preferably 60 °, to a perpendicular to a tangential of the outer surface of the circular comb.
  • the angle ß to the perpendicular to the tangentials of the outer surface of the circular comb allows stress-free guidance of the fiber on the guide surface of the spacer, which in particular improves the entry into the comb segment and also achieves a higher combing effect.
  • the spacer which is arranged between the comb segments, has a maximum height of 3.0 mm.
  • the advantage of a maximum height of 3.0 mm for the spacer is that the risk of the fiber forming loops around the tooth is considerably minimized because the fiber is drawn in very gently in an overhanging tooth area.
  • the tooth height of a tooth is greater than 3.0 mm so that the fiber is optimally guided by means of the spacer precisely in the area of the tooth, where otherwise the fiber would loop around an arched tooth face and the fiber damage would evoke.
  • the maximum set height of the spacer ensures that looping of the fiber in the area of the arched tooth face is prevented.
  • the height can be higher than 3.0 mm depending on the application purpose.
  • the purpose of this design is to see the fiber transfer from the combing process with the round comb to the soldering process with the downstream pair of tear-off cylinders as stress-free as possible.
  • the width of the spacer is particularly preferably 1.0 mm to 5.5 mm, preferably 2.5 mm.
  • the distance between the comb segments which is defined across the width tangential to the direction of rotation, has the advantageous effect that the fiber can be optimally aligned before it is drawn into the tooth element of the next comb segment.
  • it is advantageous that the width of the spacer is so long that the fiber can be optimally aligned on the shorter section and longer section of the fiber guide in order to allow the gentle transition between the comb segments.
  • the length of the spacer corresponds to a length of the Kammseg elements in the direction of the axis of rotation.
  • the spacer advantageously stabilizes the two adjacent comb segments when the length of the spacer corresponds to the length of the circular comb. In this way, the fiber is also guided very homogeneously in the direction of the axis of rotation from one comb segment to the other and drawn in very gently.
  • the combing work of the circular comb is correspondingly improved in an advantageous manner.
  • the spacer may extend only partially in the direction of the axis of rotation and to have several sections one behind the other. Although this version is somewhat more complex to assemble, it is easily conceivable.
  • the spacer is releasably connected to the base body via a fastening means. Due to the releasable connection of the spacer with the base body, differently designed spacers in terms of the height, the tangential width and the length and arrangement of the guide surface can be asbil det. By quickly exchanging the spacer, the degree of soiling and fiber damage can be set as minimally as possible, depending on the fiber to be combed, in a very simple manner with the same set of the round comb.
  • the spacer could also be bonded to the base body. Due to the gluing, however, the possibility of replacing the spacer with other requirements is rather laborious, but conceivable.
  • the spacer is designed in one piece with the base body.
  • the spacer can be molded directly into the production of the base body in an advantageous manner, whereby the work step of manual assembly of the spacer can be saved using fasteners or gluing on the base body.
  • the spacer is formed in one piece with a comb segment.
  • the spacer can be taken into account when manufacturing the comb segment. In this way, the assembly of the comb segment and spacer on the base body of the round comb could be considerably improved and simplified. Kits with different combing effects of the comb segments together with the desired specifications of the spacer could be used.
  • the spacer particularly preferably has a marking at least in a partial area.
  • the fiber guide surface or also the transition from one section to the other section can be viewed as a partial area of the spacer. It is also conceivable that the partial area is an area delimited in the tangential or axial direction on which the marking is provided.
  • An engraving, a color coding, a specific pattern or a structure can be attached to the surface of the guide surface as a marking. This has the advantageous effect that the combing effect of the round comb used can be shown via the marking, which should be used for a specific fiber length or fiber quality.
  • the color coding allows a quick assignment of the round comb with the correct round comb specifications. This considerably speeds up the assembly and replacement of the circular comb.
  • the present invention further relates to a combing machine with a round comb according to the invention as set out above.
  • FIG. 1 shows a cross section through a circular comb according to the invention
  • FIG. 2 shows an enlarged illustration of section A from FIG. 1;
  • FIG. 3 shows a perspective illustration of a spacer according to FIG. 1;
  • FIG. 6 shows a cross section through a further round comb according to the invention.
  • a circular comb 10 shown in FIG. 1 consists essentially of a circularly cylindrical base body 14 designed as a flea body 12 and a plurality of comb segments 16a-16e arranged one behind the other in the circumferential direction of the base body 14.
  • the base body 14 is mounted in a known manner on a round comb shaft 17 which is rotatably mounted about an axis of rotation 18.
  • the circular comb 10 accordingly has a direction of rotation D in a combing machine.
  • Each of the comb segments 16a-16e comprises a set 20 consisting of tooth elements 22 arranged next to one another.
  • the combing effect is generally produced in that, as shown in FIG. 1, the first comb segment 16a very much, as seen in the direction of rotation D of the round comb 10 having coarse tooth elements 22 at a large distance from one another and counter to the direction of rotation D of the circular comb 10, the tooth elements 22 of the respective subsequent comb segments 16b to 16e are designed ever finer with smaller distances.
  • the tooth elements 22 have tooth tips 24, as shown in Fig. 2, which extend at an angle a to the direction of rotation D of the circular comb and a tooth height 28 aufwei sen.
  • the tooth height 28 is defined by a distance from the tooth tip 24 to a tooth base line 30.
  • the tooth tips 24 of the tooth elements 22 are each the outermost point of the circular comb 10 and therefore form an enveloping circle 32 of the circular comb 10, as in FIG. 1 and FIG. 2 shown.
  • an arcuate tooth face 34 with overhanging the tooth tips 24 is formed in each case in the direction of rotation D, as in FIG. 1 and in an enlarged view of section A according to FIG. 1 in FIG 2 shown.
  • the overhanging tooth tip 24 leads to the fact that in the respective transition between two adjacent comb segments 16 the fibers to be combed can wrap around in the respective curved tooth face 34. This type of wrapping of the fiber around the tooth face 34 can lead to undesirable fiber damage with increased fiber mass due to a high number of combing cycles of the combing machine.
  • the tooth elements 22 are, as already stated above, between the individual sets 20 of the comb segments 16 in terms of their combing effect formed differently, that is, the distances and pressure angles of the tooth elements 22 for the fibers are different in each comb segment 16, so that the transition between the respective Comb segments 16 so-called functional barriers in the form of notches, steps and crimps, which in turn cause an undesirable accumulation of the increased fiber mass.
  • each tooth element 22 is formed over the tooth height 28 in connection with a tooth base 31 like a very narrow channel as a tooth gap 33 (see FIG. 2), so that the tooth elements 22 run the risk of the fibers becoming stuck in the tooth base 31 can, if an increased fiber mass is combed out with a high number of combing cycles of the combing machine with the circular comb.
  • a spacer 36 is attached between the third comb segment 16c and fourth comb segment 16d and between the fourth comb segment 16d and the fifth comb segment 16e on the outer surface of the base body 14.
  • the respective comb segments 16c, 16d and 16e are tangentially spaced from one another by a width 38 by the respective spacer 36.
  • the maximum fleas provided for the spacer 36 is 3.0 mm, this flea being located in the area of the arched tooth face 34 between the tooth tip 24 and the tooth base 31.
  • the dimension of the spacer 36 between the comb segments 16 corresponds to a tangential width 38 of 3.0 mm.
  • the length of the spacer 36 is preferably 300 mm and corresponds to the length of the comb segments 16 in the direction of the axis of rotation 18.
  • the spacer 36 has, as shown in FIG. 2 on the basis of an exemplary embodiment and in a perspective view in FIG. 3, a guide surface 40 in an asymmetrical roof shape and, according to FIG. 1, is arranged on a side of the circular comb 10 facing away from the axis of rotation 18.
  • the asymmetrical roof shape has a shorter section 40 a of the guide surface 40 and, as shown in FIG. 2, faces the arched tooth face 34.
  • the asymmetrical roof shape also has a longer section 40b of the guide surface 40 which is oriented in the direction of rotation D of the circular comb 10.
  • the two sections 40a, 40b of the guide surface 40 each form an angle ⁇ of 60 ° to a perpendicular to a tangential of the outer surface of the Round comb 10 and in this way allow a tuft to be combed out during the combing process with the round comb 10 in the transition from one comb segment 16d to the other comb segment 16e against the direction of rotation D optimally and stress-free.
  • the shorter section 40a of the guide surface 40 ensures that the fibers on the one hand cannot get into the tooth base 31 and on the other hand the fibers on the curved tooth face 34 are no longer damaged, so that the spacer 36 changes the tooth spacing in the transition Comb segments 16 are defused and the degree of contamination in the tooth elements 22 of the circular comb 10 is also reduced.
  • the smaller fleas of the spacer 36 pointing in the direction of rotation is similar to the fleas of the tooth root 31 of the respective previous tooth element 22 of the comb segment and is 1.5 mm high and the side facing the curved tooth face 34 has a larger fleas of 3.0 mm .
  • the spacer 36 allows a stress-free transfer of the fiber from e.g. the fourth comb segment 16d to the fifth comb segment 16e and, because of the shorter section 40a of the guide surface 40, is very gently drawn into the tooth element 22e of the fifth comb segment 16e against the direction of rotation D, as shown enlarged in FIG.
  • Fig. 4 shows a further possible embodiment of an alternative spacer 36 ‘, where the two sections 40a‘, 40b ‘of the guide surface 40 on the side of the circular comb facing away from the axis of rotation 18 are each convexly curved.
  • Fig. 5 shows, viewed in the direction of rotation D, the rear part of the circular comb with the last or fifth comb segment 16e.
  • the combing effect is generally given in the case of round combs in that, viewed in the direction of rotation D of the round comb 10, the first comb segment 16a has very coarse tooth elements 22 at a large distance from one another and the tooth elements counter to the direction of rotation D. 22 of the respective comb segments 16 are always fei ner with smaller intervals.
  • the last Kammseg element 16e is formed with the finest tooth elements 22e and the smallest distances from one another.
  • the tooth elements 22e of the last or fifth comb segment 16e as shown in FIG.
  • the tooth height 28e of the tooth elements 22e of the fifth comb segment 16e can be adapted to that tooth height 28d of the preceding fourth comb segment 16d, i.e. increased in order to mechanically compensate for this undesired jump.
  • the advantage here is that a deeper incision of the tooth gap 33 in the last comb segment 16e leads to a pull-in plane of the same height as in the fourth comb segment 16d for the fibers, which in turn advantageously causes a higher combing work of the fifth comb segment 16e.
  • Fig. 6 shows a further possible embodiment of the present invention of the round comb 10, the spacer 36 with the length in the direction of the axis of rotation 18, the width 38 in the direction of rotation D and seen on the base body 14 in the direction of rotation D after the last comb segment 16e the amount is provided.
  • This specific design allows an improved transfer of the combed tuft from the circular comb to the downstream pair of tear-off cylinders in the combing machine, where the combed fiber packets are soldered to a fiber fleece in a known manner.
  • FIGS. 1 and 6 In order to improve the fiber damage when the tuft is drawn into the first comb segment 16a, it is proposed according to FIGS. 1 and 6 to provide a conical run in the front end region of the base body 14. This has the advantageous effect that the tuft to be combed out is drawn in very gently by the first comb segment 16a.
  • the front end area of the base body is 14 preferably lowered by 0.6 mm to 1.0 mm, whereby an optimal pressure angle for the tuft to be combed out at the front end of the base body 14 is set.
  • the first comb segment 16a In order to obtain parallelization per tooth against the direction of rotation at the front end of the base body 14 of the round comb 10, i.e. the first comb segment 16a, i.e. each tooth tip of the first comb segment should penetrate the tuft at a different point, it is further proposed to provide an angular inclination of the first comb segment between 0.1 ° and 1.0 °.
  • the proposed angular inclination of the first comb segment causes an improved combing work with the first comb segment.
  • a conical inlet of the first comb segment for an improved pressure angle of the tuft in the first comb segment by lowering the base body in the front end region of the circular comb as well as the angular inclination of the first comb segment for a higher parallelization of the fibers per tooth can be used independently of the spacer described above or can also be used in combination with one another in order to improve the combing work of the circular comb, minimize fiber damage at the transitions of the comb segments and when drawing in at the beginning of the combing work and the service life in particular to increase the first tooth tips of the first comb segment.
  • FIG. 1 A enlarged detail from FIG. 1 than FIG. 2

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un peigne circulaire destiné à une peigneuse et comprenant un corps de base (14) et un axe de rotation (18) et un sens de rotation (D). Au moins deux segments de peigne (16 ; 16a-16e) sont montés sur une surface extérieure du corps de base (14) et les segments de peigne (16a-16e) comportent des garnitures (20) comprenant des éléments formant dents (22) disposés les uns à côté de autres dans la direction de l'axe de rotation (18) et munis de pointes de dent (24) qui ont une hauteur de dent (28). Selon l'invention, une pièce d'espacement (36) ayant une longueur dans la direction de l'axe de rotation (18), une largeur (38) dans le sens de rotation (D) et une hauteur est prévue sur le corps de base (14) entre les segments de peigne (16 ; 16a-16e) ou, par référence au sens de rotation (D), après le dernier segment de peigne (16e). Les segments de peigne (16 ; 16a-16e) sont espacés tangentiellement les uns des autres par la pièce d'espacement (36) de la largeur (38) de celle-ci.
PCT/IB2020/051915 2019-03-25 2020-03-05 Peigne circulaire pour peigneuse WO2020194088A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00382/19 2019-03-25
CH00382/19A CH715995A1 (de) 2019-03-25 2019-03-25 Rundkamm für eine Kämmmaschine.

Publications (1)

Publication Number Publication Date
WO2020194088A1 true WO2020194088A1 (fr) 2020-10-01

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ID=69845490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/051915 WO2020194088A1 (fr) 2019-03-25 2020-03-05 Peigne circulaire pour peigneuse

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AR (1) AR118464A1 (fr)
CH (1) CH715995A1 (fr)
WO (1) WO2020194088A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1332359A (en) * 1969-10-22 1973-10-03 Nitto Shoji Kk Textile combers
CH635137A5 (de) * 1979-02-16 1983-03-15 Burckhardt Christoph Ag Zirkularkamm fuer baumwoll- oder wollkaemmaschine.
DE102009032799A1 (de) 2009-07-10 2011-02-24 Staedtler + Uhl Kg Rundkammgarnitur
WO2013178305A1 (fr) * 2012-06-01 2013-12-05 TRüTZSCHLER GMBH & CO. KG Peigne circulaire et garniture pour machine de traitement textile
EP2883984A1 (fr) * 2013-12-12 2015-06-17 Kabushiki Kaisha Toyota Jidoshokki Cylindre de peignage pour peigneuse
CN109112676A (zh) * 2018-10-30 2019-01-01 中原工学院 一种带有副齿结构的精梳锯齿锡林

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131292B1 (fr) * 1970-10-30 1976-09-06

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1332359A (en) * 1969-10-22 1973-10-03 Nitto Shoji Kk Textile combers
CH635137A5 (de) * 1979-02-16 1983-03-15 Burckhardt Christoph Ag Zirkularkamm fuer baumwoll- oder wollkaemmaschine.
DE102009032799A1 (de) 2009-07-10 2011-02-24 Staedtler + Uhl Kg Rundkammgarnitur
WO2013178305A1 (fr) * 2012-06-01 2013-12-05 TRüTZSCHLER GMBH & CO. KG Peigne circulaire et garniture pour machine de traitement textile
EP2883984A1 (fr) * 2013-12-12 2015-06-17 Kabushiki Kaisha Toyota Jidoshokki Cylindre de peignage pour peigneuse
CN109112676A (zh) * 2018-10-30 2019-01-01 中原工学院 一种带有副齿结构的精梳锯齿锡林

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Publication number Publication date
AR118464A1 (es) 2021-10-06
CH715995A1 (de) 2020-09-30

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