EP2924153B1 - Fixkammvorrichtung einer kämmmaschine - Google Patents

Fixkammvorrichtung einer kämmmaschine Download PDF

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Publication number
EP2924153B1
EP2924153B1 EP15159559.2A EP15159559A EP2924153B1 EP 2924153 B1 EP2924153 B1 EP 2924153B1 EP 15159559 A EP15159559 A EP 15159559A EP 2924153 B1 EP2924153 B1 EP 2924153B1
Authority
EP
European Patent Office
Prior art keywords
comb
top comb
holder
base portion
comber
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
EP15159559.2A
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English (en)
French (fr)
Other versions
EP2924153A2 (de
EP2924153A3 (de
Inventor
Masami Shimbara
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.)
Toyota Industries Corp
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Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP2924153A2 publication Critical patent/EP2924153A2/de
Publication of EP2924153A3 publication Critical patent/EP2924153A3/de
Application granted granted Critical
Publication of EP2924153B1 publication Critical patent/EP2924153B1/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

Definitions

  • the present invention relates generally to a top comb device of a comber and, more specifically, to a top comb device of a comber, having a top comb and a top comb holder.
  • a comber has a plurality of combing heads (eight combing heads in general). A series of operations for making sliver from lap as material is performed at each combing head.
  • FIG. 6 is a schematic side view of one of the combing heads of a known comber. It is noted that the left-hand side and righthand side of FIG. 6 correspond to the front and the rear of a combing head 51, respectively.
  • the combing head 51 includes a nipper device 53, a combing cylinder 54, and two pairs of detaching rollers 55, 56.
  • the nipper device 53 has a feed roller 52 and the paired detaching rollers 56 are located forward of the paired detaching rollers 55.
  • the nipper device 53 has a nipper frame 57 that is disposed above the combing cylinder 54 and pivotally supported by a shaft so as to be swingable back and forth.
  • the nipper frame 57 has at the bottom thereof a bottom nipper 58.
  • the nipper frame 57 is configured so that the front end of the bottom nipper 58 is moved toward and away from the detaching rollers 55.
  • a nipper arm 59 having at one end thereof a top nipper 59A is pivotally connected at the end thereof to the nipper frame 57 through a shaft.
  • the top nipper 59A is operated to be opened and closed at a predetermined time in synchronization with the back-and-forth movement of the nipper frame 57 thereby to hold a lap L in conjunction with the bottom nipper 58.
  • a top comb 60 is mounted to the nipper frame 57 at a position that is forward of the bottom nipper 58 and operable to move in synchronization with the nipper frame 57.
  • the top comb 60 combs the rear end of fleece combed by the combing cylinder 54.
  • the top comb 60 is fixed to a plate-shaped top comb holder 61 at a plurality of positions by screws not shown in the drawing.
  • FIG. 7 is a side view of a top comb device according to a background art.
  • document EP 2085505 A2 discloses a configuration in which the top comb holder 61 is strengthened by a reinforcing member 62 and the top comb 60 interposed between a clamp plate 63 and the top comb holder 61 is fixed by a screw 64.
  • the bending of the top comb 60 in the longitudinal direction thereof is suppressed.
  • the top comb 60 is made of a thin plate, a comb teeth portion 60A located at the tip end of the top comb 60 tends to be bent or vibrated back and forth as indicated by the arrow in FIG. 7 , so that combing performance of the comber is degraded. If the top comb 60 is made thicker, the bending of the comb teeth portion 60A may be reduced.
  • the thickened top comb 60 causes the teeth of the comb teeth portion 60A to be inserted into a fleece at a position that is shifted rearward (or rightward in FIG. 6 ), so that the distance of combing by the comb teeth portion 60A is reduced, with the result that combing performance of the comber is degraded.
  • Document WO 2008/037437 A1 pertains to a Needle Bar for a Warp Drawframe.
  • a needle bar for a gill drafting device or a device for drafting a fiber bundle by needles is disclosed.
  • Document CN 203 295 687 U1 discloses a Strengthening Type Splicing Top Comb for a Combing Machine.
  • a top comb device of a comber including a top comb holder that is moveable in synchronization with a nipper frame and a top comb that is detachably fixed to the top comb holder.
  • the top comb includes a comb body that is fixed to the top comb holder and a comb teeth member that is formed separately from and combined with the comb body at a tip end of the comb body.
  • the comb body includes a base portion that is in contact with the top comb holder, a comb teeth combining portion combined with the comb teeth member at the tip end of the comb body, and a thickness increasing portion extending between the base portion and the comb teeth combining portion and having a thickness that is increased toward the base portion.
  • the top comb device is designated by reference numeral 10 and has a top comb holder 11 and a top comb 12.
  • the top comb holder 11 is operable to move in synchronization with a nipper frame 21 (shown in FIG. 2 ) of the comber.
  • the top comb 12 is detachably fixed to the top comb holder 11. As shown in FIGS.
  • the top comb 12 includes a comb body 14 and a comb teeth member 15 and the comb body 14 is fixed to the top comb holder 11 by a screw 13.
  • the comb teeth member 15 is formed separately from the comb body 14, but combined with the comb body 14 at the tip end of the comb body 14.
  • the comb body 14 includes a base portion 14B, a comb teeth combining portion 14A, and a thickness increasing portion 14C.
  • the thickness increasing portion 14C extends between the base portion 14B and the comb teeth combining portion 14A and is formed in such a way that its thickness is increased toward the base portion 14B, so that the base portion 14B is formed thicker than the thickest portion of the comb teeth combining portion 14A.
  • the top comb holder 11 has therein a internal thread hole 11A that is formed through the surface of the top comb holder 11 that is in contact with a base portion 14B of the top comb 12 and receives the external thread portion of the screw 13.
  • the screw 13 is inserted through holes 16 that are formed through the base portion 14B of the top comb 12. Tightening the screw 13, the top comb 12 is fixed securely to the top comb holder 11.
  • the holes 16 are formed elongated so that the fixed position of the top comb 12 can be adjustable in the longitudinal direction of the top comb 12 with relative to the top comb holder 11.
  • the top comb holder 11 has a bent portion 17 so that a contact surface 11B of the top comb holder 11 is in contact with the base portion 14B of the comb body 14 at a position that is frontward of the front surface of the comb teeth combining portion 14A or leftward of the front surface in FIG. 1A .
  • the comb body 14 and the comb teeth member 15 are made of different materials.
  • the comb body 14 is made of a lightweight material with a rigidity such as aluminum alloy.
  • the comb teeth member 15 is made of a material such as steel having durability against combing. As shown in FIG. 1C , the comb teeth member 15 is fixed to the comb teeth combining portion 14A of the comb body 14 at the tip end of the comb body 14 from the base portion 14B of the comb body 14, for example, by insert molding.
  • the base portion 14B has a rectangular shape in the cross section across the thickness of the comb body 14.
  • the long side of the rectangular shape of the base portion 14B corresponds to the direction from the base end toward the top end of the comb body 14.
  • the base portion 14B is hollowed.
  • the top comb device 10 is fixed to a support lever (not shown) of a nipper frame 21 of a nipper device 20 of the comber at a position above the top comb holder 11.
  • the nipper frame 21 is pivotally supported by a shaft (not shown) mounted to the support lever.
  • Lap L supplied from a lap supply source (not shown) is delivered toward a position forward of a bottom nipper 23 by a feed roller 22.
  • a top nipper 24A is fixed to a nipper arm 24 that is pivotally supported by a shaft mounted in the nipper frame 21.
  • the top nipper 24A is operated to be opened and closed at a controlled timing in synchronization with the back-and-forth movement of the nipper frame 21 thereby to hold the lap L in conjunction with the bottom nipper 23.
  • the bottom nipper 23 is swung back and forth with the nipper frame 21, with the result that the leading end of the lap L held by the bottom nipper 23 and the top nipper 24A is combed by a combing cylinder (not shown), thus being formed into a fleece F and the resulting fleece F is moved toward detaching rollers 25 by forward movement of the nipper frame 21.
  • the detaching rollers 25 are reversed thereby to move the preceding fleece backward.
  • the rear end of the preceding fleece and the front end of the newly combed fleece (following fleece) are lapped one on the other.
  • the fleece F is moved forward from the nipper device 20 and the trailing end of the preceding fleece F is combed by the comb teeth member 15 of the top comb 12. Repeating such operations, the fleece F fed by each combing head is bundled, drafted and compressed into sliver by a calendar roller.
  • the quality of the fleece F combed by the top comb 12 depends on whether all the teeth of the comb teeth member 15 of the top comb 12 repeat the insertion into the fleece F to a predetermined depth at the respective positions across the fleece F.
  • the fleece F is transferred by the detaching roller 25 while being inserted by the comb teeth member 15 of the top comb 12, so that the top comb 12 receives through the comb teeth member 15 a force of the fleece F acting toward the detaching roller 25.
  • the force is increased with an increase of the operating speed of the comber and of the production amount.
  • the comb body 14 of the top comb 12 were of a plate shape such as the configuration of the background art, the comb body 14 may be formed thicker to resist the above force that is increased with an increase of the operation speed of the comber and of the production amount. If the comb body 14 is made thicker, the weight of the top comb 12 is increased and the power consumption of the comber is increased, accordingly. Furthermore, the position at which the teeth of the comb teeth member 15 are inserted into the fleece is displaced rearward (or rightward in FIG. 6 ), so that the combing distance of the comb teeth member 15 is reduced. Therefore, the combing performance of the comber is degraded.
  • the comb body 14 includes the base portion 14B, the comb teeth combining portion 14A, and the thickness increasing portion 14C.
  • the thickness increasing portion 14C extends between the base portion 14B and the comb teeth combining portion 14A and is formed in such a way that the thickness of the thickness increasing portion 14C is increased toward the base portion14B.
  • the rigidity of bending of the comb body 14 of the top comb 12 in the back and forth direction of the top comb 12 increases as compared to the configuration in which the comb body 14 of the top comb 12 is made of a plain plate, with the result that bending of the comb teeth combining portion 14A in the back and forth direction of the top comb 12 during combing operation of the top comb 12 is suppressed.
  • the bending resistance of cross section of a member is proportional to the second moment of area.
  • the second moment of area is calculated by integrating the product of a differential area dA in the section and squared distance from an axis by reference to the geometric center of the section, in the entire sectional region.
  • a comb body having a thickness increasing portion such as 14C has a greater second moment of area than a comb body that has the same length but is formed with a constant thickness. Therefore, the former comb body 14 is harder to bend.
  • the thickness of the comb teeth combining portion 14A remains unchanged, so that combing performance is not deteriorated.
  • the present embodiment has the following advantageous effects.
  • the present invention is not limited to the above-described embodiment, but may be embodied in various manners as follows.
  • the top comb 12 may be formed in such a way that the portion of the comb body 14 extending toward the end thereof from the base portion 14B is bent away from the surface of contact between the base portion 14B of the comb body 14 and the top comb holder 11. According to such configuration, the base portion 14B may be formed still thicker.
  • the top comb holder 11 is formed so that the surface thereof that is in contact with the top comb 12 extends straight as in the case of the above-cited document EP 2085505 A2 .
  • the base portion 14B of the top comb 12 may be made solid and have therein an internal thread hole 18 that is formed through the surface that is in contact with the top comb holder 11 and receives therein the external thread portion of the screw 13.
  • An elongated hole 11C may be formed through the top comb holder 11 to receive therethrough the screw 13 and the top comb 12 is fixed to the top comb holder 11 by tightening the screw 13.
  • the base portion 14B of the top comb 12 may be hollowed by providing a plurality of the hollowed portions.
  • the shape of hollowed portion is not limited to a rectangular shape in cross section, but, the hollowed portion may be of any shape such as polygonal, circular, oval or any other shape.
  • the top comb 12 may be fixed to the top comb holder 11 by using a bolt and a nut, instead of the screw 13.
  • the top comb holder 11 may not be hollowed.

Landscapes

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

Claims (4)

  1. Fixkammvorrichtung (10) einer Kämmmaschine, mit:
    einem Fixkammhalter (11); und
    einem Fixkamm (12), der abnehmbar an dem Fixkammhalter (11) befestigt ist, wobei
    der Fixkamm (12) einen Kammkörper (14) hat, der an dem Fixkammkörper (11) befestigt ist, und ein Kammzahnelement (15), das getrennt von und mit dem Kammkörper (14) kombiniert an einer Spitze des Kammkörpers (14) ausgebildet ist, wobei der Kammkörper (14) einen Basisabschnitt (14B) hat, der mit dem Fixkammhalter (11) in Berührung ist, einen Kammzahnkombinationsabschnitt (14A), der mit dem Kammzahnelement (15) an der Spitze des Kammkörpers (14) kombiniert ist, und einen Dickenerhöhungsabschnitt (14C), der sich zwischen dem Basisabschnitt (14B) und dem Kammzahnkombinationsabschnitt (14A) erstreckt und eine Dicke aufweist, die zu dem Basisabschnitt (14B) hin erhöht wird,
    dadurch gekennzeichnet, dass
    der Fixkammhalter (11) derart einen gebogenen Abschnitt (17) aufweist, dass eine Berührungsoberfläche (11B) des Fixkammhalters (11) mit dem Basisabschnitt (14B) des Kammkörpers (14) an einer Position in Berührung ist, die vor einer vorderen Oberfläche des Kammzahnkombinationsabschnitts (14A) liegt.
  2. Fixkammvorrichtung (10) der Kämmmaschine nach Anspruch 1, wobei der Basisabschnitt (14B) dicker als der Kammzahnkombinationsabschnitt (14A) ist.
  3. Fixkammvorrichtung (10) der Kämmmaschine nach Anspruch 1 oder 2, wobei der Basisabschnitt (14B) hohl ist.
  4. Fixkammvorrichtung (10) der Kämmmaschine nach einem der Ansprüche 1 bis 3, wobei der Fixkamm (12) so gebogen ist, dass die Spitze des Kammkörpers (14) von einer Berührungsoberfläche (11B) zwischen dem Basisabschnitt (14B) des Kammkörpers (14) und dem Fixkammhalter (11) beabstandet ist.
EP15159559.2A 2014-03-24 2015-03-18 Fixkammvorrichtung einer kämmmaschine Active EP2924153B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014060445A JP5999128B2 (ja) 2014-03-24 2014-03-24 コーマのトップコーム装置

Publications (3)

Publication Number Publication Date
EP2924153A2 EP2924153A2 (de) 2015-09-30
EP2924153A3 EP2924153A3 (de) 2016-03-16
EP2924153B1 true EP2924153B1 (de) 2019-11-13

Family

ID=52686217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15159559.2A Active EP2924153B1 (de) 2014-03-24 2015-03-18 Fixkammvorrichtung einer kämmmaschine

Country Status (3)

Country Link
EP (1) EP2924153B1 (de)
JP (1) JP5999128B2 (de)
CN (1) CN104947250B (de)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191009346A (en) * 1910-04-18 1910-12-22 Robert Schlumberger Improvements in or relating to the Feeding Mechanism of Combing Machines.
JPS513218Y1 (de) * 1969-06-24 1976-01-30
US3688347A (en) * 1970-07-20 1972-09-05 Nakagawa Seisakusho Co Top comb
JPS49127509U (de) * 1973-02-26 1974-11-01
JPS5337062Y2 (de) * 1973-08-06 1978-09-08
DE3838561A1 (de) * 1988-11-14 1990-05-17 Wolters Peter Fa Zahnprofil fuer kardengarnitur
CN2066447U (zh) * 1990-05-19 1990-11-28 宁波市纺织机械部件厂 精梳机装配式顶梳针排
EP0580549B1 (de) * 1992-07-22 1995-08-16 Maschinenfabrik Rieter Ag Fixkammeinheit für eine Kämmaschine
CH691480A5 (de) * 1996-09-03 2001-07-31 Rieter Ag Maschf Nadelstreifen einer Textilmaschine.
EP2069563A1 (de) * 2006-09-28 2009-06-17 Drei-S-Werk Präzisionswerkzeuge GmbH & Co. Nadelstab für eine kettenstrecke
EP2085505B1 (de) 2008-01-29 2012-05-16 Maschinenfabrik Rieter Ag Fixkamm einer Kämmmaschine
CN201722463U (zh) * 2010-06-27 2011-01-26 何银康 用于棉精梳机上的齿片式自清洁顶梳
WO2012093487A1 (ja) * 2011-01-07 2012-07-12 株式会社中川製作所 コーマ用紡績針とそれを用いたトップコームおよびシリンドリカルコームとそれらを用いたコーマ
CN202099443U (zh) * 2011-06-10 2012-01-04 浙江锦峰纺织机械有限公司 顶梳
CN203295687U (zh) * 2013-05-31 2013-11-20 浙江新棉纺织有限公司 一种加强型可插接精梳机用顶梳
DE102014105175A1 (de) * 2014-04-11 2015-10-29 TRüTZSCHLER GMBH & CO. KG Fixkamm für eine Kämmmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP5999128B2 (ja) 2016-09-28
CN104947250A (zh) 2015-09-30
CN104947250B (zh) 2017-05-31
EP2924153A2 (de) 2015-09-30
JP2015183312A (ja) 2015-10-22
EP2924153A3 (de) 2016-03-16

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