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WO2009068001A1 - Tête de retordage et procédé de guidage de fils sur la tête de retordage d'une machine de câblage - Google Patents

Tête de retordage et procédé de guidage de fils sur la tête de retordage d'une machine de câblage Download PDF

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Publication number
WO2009068001A1
WO2009068001A1 PCT/DE2008/001943 DE2008001943W WO2009068001A1 WO 2009068001 A1 WO2009068001 A1 WO 2009068001A1 DE 2008001943 W DE2008001943 W DE 2008001943W WO 2009068001 A1 WO2009068001 A1 WO 2009068001A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
roller
twisting head
rotor
threads
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.)
Ceased
Application number
PCT/DE2008/001943
Other languages
German (de)
English (en)
Other versions
WO2009068001A4 (fr
Inventor
Christian Felber
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.)
INTERPRECISE DONATH GmbH
Original Assignee
INTERPRECISE DONATH 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
Application filed by INTERPRECISE DONATH GmbH filed Critical INTERPRECISE DONATH GmbH
Priority to DE112008003668T priority Critical patent/DE112008003668A5/de
Publication of WO2009068001A1 publication Critical patent/WO2009068001A1/fr
Publication of WO2009068001A4 publication Critical patent/WO2009068001A4/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/88—Hollow-spindle arrangements
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn

Definitions

  • the present invention relates to a twisting head for a Kabliermaschine having a rotor with a balancing roller with two yarn guide grooves of the same diameter for each thread rotatably mounted on a coaxial to the rotor axis of rotation roller axis, wherein each of the threads and each yarn guide groove at a radial distance in a yarn guide eyelet is arranged which is arranged to cover the compensating roller from the top cross-member of the rotor.
  • the invention further relates to a method for guiding threads on a twisting head of a cabling, wherein the threads are guided around a provided on a rotor and rotatably mounted on a roller axis to the rotor axis rotatably mounted compensating roller with two yarn guide grooves of the same diameter, and wherein each yarn guide groove each one of Threads via a the respective thread and the respective yarn guide groove in the radial distance associated and arranged in a the compensating roller from above cross-basic carrier of the rotor arranged Faden executionsinate is supplied.
  • twisting heads with rotor and associated methods are used in the production of high-quality technical twines, such as tire cord, on cabling machines for merging the threads coming from the two feed bobbins.
  • Tear strength loss is the difference between the sum of the tear strength of the two yarns and the tear strength of the cabled yarn. The loss of tensile strength is caused by different yarn lengths of the two yarns in the finished yarn and by fiber stress at Fadenumlenkstellen the cabling.
  • the document DE 1 114 129 proposes a twisting head and a method of the above type, wherein a balancing role with two yarn guide grooves is arranged on a coaxial with the axis of rotation of the rotor shaft.
  • the rotor is designed here as a cage, the leadership of the threads via numerous eyelets and thread guide.
  • the high cost of production and the unfavorable operation of the rotor of the Known threading head has meant that such a design on cabling machines has hitherto not been used.
  • twisting heads with rotor which also serve the purpose of reducing tensile strength losses.
  • the rotors of these twist heads have four balancing rollers, two of which are arranged on one side of a plane passing through the rotor axis symmetry plane and the other two rollers symmetrically thereto on the other side of the plane of symmetry.
  • each shaft journal is perpendicular to the plane of symmetry and in each case at a radial distance from the axis of rotation of the rotor.
  • the ball bearings have a corresponding distance from the rotor axis and as a result of the high speeds act on them considerable centrifugal forces.
  • the centrifugal force causes the sealing disks of the ball bearings to buckle outwards, thereby increasing the sealing gap.
  • the grease filling is thrown out of the ball bearing except for a residual quantity. During further operation, the remainder of the grease is consumed until the ball bearings run dry.
  • each of the thread guide eyelets associated with the thread guide eyelets is both thread feed and thread removal element for one thread to or from the thread guide groove assigned to the respective thread.
  • a first thread of a first thread guide groove is fed by the yarn guide eyelet associated with the thread guide eye of the compensating roller. After the first thread has once wrapped around the equalizing roller, it is again guided over the same thread guide eyelet outward and then up to a junction point of the threads.
  • the second thread forming a thread balloon is fed to the other thread guide groove on the thread guide eyelet assigned to this groove and wraps around the equalizing roller in the same direction as the first thread and, like the latter, is guided outwardly over the eyelet assigned to it and then up to the point of union.
  • both existing guide grooves are arranged non-rotatably on a roller mounted on the roller axle and have the same diameter, it is ensured that the threads are brought together in each case with the same thread tension and the same thread length at the junction.
  • the yarn path over the common compensating roller compensates for any previously existing tension differences, because higher yarn tension is achieved by winding transferred to the common balancing role on the thread with lower voltage and vice versa.
  • the roller axle is freely accessible from below. This results in a reduced maintenance, in particular for the compensating roller and their storage. In addition, therefore, the threads during threading can be easily placed to form a loop around the roll axis from below.
  • the roller axle has a extending to below the compensating roller portion in which a further eye for feeding a yarn is arranged at a favorable angle for the thread running direction.
  • a thread preferably the inner thread, which is fed to the twisting head of a below the roller axis and thus arranged below the eyelet supply roll, are first passed through the central eyelet in the roll axis and then, due to the favorable angle education of the other eyelet, especially are advantageously guided to the yarn guide eyelet associated yarn guide eyelet of the compensating roller.
  • the compensating roller is mounted with ball bearings on the roller axle.
  • ball bearings are compared to the ball bearings used in the publications DE 88 01 951 U1 and DE 197 00 222 C1 about the roller axis, that is offset by 90 ° to the ball bearings previously known arrangements provided. Accordingly, the centrifugal forces acting on the twisting head according to the invention only lead to an accumulation of the grease contained in the ball bearing on the inner wall of the ball bearing, whereby the ball bearings permanently lubricating grease available.
  • the inventively proposed ball bearings thus cause a permanent reduction of friction between the roller shaft and the compensating roller.
  • a defined distance between the compensating roller and the roller axle is produced by the proposed roller bearings and thus prevents slippage.
  • the compensating roller on the ball bearings lid which have recesses for receiving grease or oil.
  • the lids on the compensating pulley With the help of the lids on the compensating pulley, it is possible to ensure an extensive grease or oil depot for the ball bearings. Thus, due to centrifugal the grease or oil of the ball bearings in the appropriate recesses or fat pockets of the lid.
  • a provided at the bottom of the compensating roller cover has a recess for receiving the entire amount of grease or lubricating oil of the ball bearings. This can accumulate at a standstill of the twisting head all the grease or oil in this recess. When the threading head is restarted, this quantity of lubricating grease or lubricating oil is again available to the bearings and is again distributed to both bearings as a result of the onset of centrifugal force.
  • the compensating roller is visible at least at one point from the radial direction.
  • the guide grooves of the compensating roller are easily accessible and visible.
  • a particularly good visual control of the thread layers can be achieved in that the base carrier covers the compensating roller from above only at two diametrically opposite regions.
  • the object is further achieved by a method of the above-mentioned type, wherein each one of the threads by both the same, one of the yarn guide grooves associated yarn guide both to the yarn guide groove supplied as is also removed from this yarn guide groove.
  • the threads can be supplied in a simple manner by one and the same Faden arrangementsinate the associated yarn guide groove and again discharged from this outward and then fed to a junction of the threads.
  • a large wrap angle of the thread to the associated thread guide groove which allows a particularly good interaction between the thread and the thread guide groove, so that differences in the thread length and the yarn feeding speed of the two
  • threads can be compensated by the compensating roller. Accordingly, with the aid of the method according to the invention, threads with very low tensile strength losses can be produced.
  • Additional thread guides or the like, as they are known from the Publication DE 1 114 129 are known are not required for the inventive method. Accordingly, the inventive method is characterized by a particularly simple feasibility and high efficiency.
  • a first thread is guided by a further eyelet arranged in a section of the roller axis extending below the compensating roller at an angle favorable for the thread running direction, before it is fed through one of the thread guide eyelets to a thread guide groove.
  • This first thread is preferably the inner thread, which is fed to the twisting head by means of a supply roll located below the roller axis and thus below the further eyelet. From this supply roll, the first thread can be particularly suitably guided directly upwards through the central eyelet in the roll axis. Due to the favorable angle of the other eyelet also results in a particularly advantageous continuation of the thread to the associated Faden arrangementsinate.
  • a thread loop is formed for threading at least at one of the threads, which is inserted through one of the thread guide eyelets, laid from below over the freely accessible from below roller axis and placed in the associated thread guide groove.
  • a thread forming a yarn balloon outer thread is threaded in front of an inner thread, which is first fed through the further eyelet and then through the yarn guide eyelet of the yarn guide groove.
  • the outer thread can first be easily guided around the roller axis, without coming into conflict with the inner thread, which then, unhindered by the outer thread, through the further eyelet and then fed through the thread guide eyelet of the thread guide groove.
  • Figure 1 shows an oblique view of a twisting head according to an embodiment of the present invention
  • Figure 2 is a sectional view of a rotor of the twisting head of Figure 1;
  • Figure 3 is a sectional view of a compensating roller with a storage of in the
  • Fig. 1 and 2 shown twisting head shows
  • Figure 4 is a sectional view of a compensating roller with storage and additional
  • Fig. 1 shows an oblique view of an embodiment of a Zwimkopfes according to the present invention.
  • the twisting head has a rotor bearing 2, whose housing 3 is generally connected stationarily with the cabling machine.
  • the twisting head shown has a rotor 1, which consists of a base support 4 which is freely rotatably mounted about a coaxial to the spindle axis rotor axis 5.
  • a compensating roller 6 with two thread guide grooves 7a, 7b of the same diameter is provided on the rotor 1.
  • the compensating roller 6 is in the embodiment shown by the base support 4 like a shell from above, only partially covered. As shown in Fig. 1, the two overlap areas are diametrically opposite. Thus, the compensating roller 6 and its storage can be viewed from the radial direction.
  • a thread guide eyelet 10a, 10b is provided, which is assigned to a respective thread guide groove 7a, 7b and is thus at its height.
  • the thread guide eyelets 10a, 10b are each assigned to a thread 12, 13 shown in FIG. 2, for example, wherein the thread guide eyelets 10a, 10b both the supply and the discharge of the respective thread 12, 13 to or from the thread 12, 13 associated thread guide groove 7a, 7b serve.
  • the roller axle 9, on which the compensating roller 6 is mounted in a cantilevered manner, is freely accessible from below and has an extension extending below the compensating roller 6. cut, in which a further eyelet 11 is arranged for feeding a yarn 13 at a favorable angle for the thread running direction.
  • Fig. 2 shows a sectional view of the rotor 1 of the twisting head shown in Fig. 1.
  • the compensating roller 6 is mounted with ball bearings 8 a, 8 b on the coaxial with the rotor axis 5 rolling axis 9.
  • the roller axle 9 may be an integral part of the base support 4 or, as in the case shown, is connected as a separate part to the base support 4 by means of suitable joining methods.
  • each yarn guide groove 7a, 7b of the compensating roller 6 is assigned at a radial distance a Faden arrangementsinate 10a, 10b, which is arranged in the base support 4 of the rotor 1, from above the balancing roller 6 at two diametrically opposite Covered areas.
  • This regional overlap proves to be very advantageous for the operation of the rotor 1.
  • the second thread forming the thread balloon 12 which is also referred to as an outer thread, is threaded first. This can be done very easily by the formation of a thread loop, which is inserted as such from the outside through the thread guide eye 10a and inserted from below over the roller axis 9 and the compensating roller 6 in the associated upper thread guide groove 7a.
  • the thread loop formed with the inner thread 13 is inserted into the associated lower thread guide groove 7b in the same wrapping direction as that of the outer thread 12.
  • Both threads 12, 13 are then further upwards to a United N Trentsstelle 14 and supplied from here by a hollow shaft 15 in the rotor bearing 2 of the cable liermaschine for further treatment.
  • a skilled operator is thus a very fast and safe operation of the twisting head possible.
  • Fig. 3 shows a sectional view of the compensating roller 6 with a bearing in the form of ball bearings 8a, 8b according to the invention shown in FIGS. 1 and 2 twisting head.
  • FIG. 4 shows a sectional view of a compensating roller 6 with ball bearings 8a, 8b and an additional seal according to a further embodiment of the twisting head according to the invention.
  • the covers 20, 21 are oil-tight after mounting the ball bearings 8a, 8b introduced into the body of the compensating roller 6. Due to the centrifugal forces, the grease accumulates in the recesses or fat chambers A and B provided. When the roller stops, an annular web 22 on the lower cover 21 prevents the escape of grease or oil, since the space B formed by the cover is designed to that it is sufficient to lette grease quantity of the bearings 8a, 8b record. When restarting this amount of grease the bearings 8a, 8b is available again and is due to the onset of centrifugal force again distributed to both bearings 8a, 8b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne une tête de retordage destinée à une machine de câblage, comportant un rotor (1) présentant un rouleau de compensation (6) pourvu de deux rainures de guidage de câble (7a, 7b) de diamètre identique, respectivement destinées à un fil (12, 13), le rouleau étant logé rotatif sur un axe de rouleau (9) coaxial par rapport à l'axe de rotation du rotor (5). Un oeillet de guidage de fil (10a, 10b) disposé dans un support de base (4) du rotor, entourant le rouleau de compensation par le haut, est affecté à chaque fil et à chaque rainure de guidage de fil à un espace radial. L'invention concerne également un procédé de guidage de fils (12, 13) sur la tête de retordage d'une machine de câblage, les fils étant guidés autour d'un rouleau de compensation pourvu de deux rainures de guidage de câble de diamètre identique, prévu sur un rotor, logé rotatif sur un axe de rouleau coaxial par rapport à l'axe de rotation de rotor. Respectivement un fil est acheminé vers chaque rainure de guidage de fil au moyen d'un oeillet de guidage de fil disposé dans un support de base du rotor, entourant le rouleau de compensation par le haut, affecté à chaque fil et à chaque rainure de guidage de fil à un espace radial. L'invention vise à mettre en oeuvre une telle tête de retordage présentant une construction simple et une maniabilité aisée, ainsi qu'un tel procédé pouvant être réalisé simplement. A cet effet, respectivement un fil (12, 13) est acheminé vers la rainure de guidage de fil et extrait de cette rainure au travers du même oeillet de guidage de fil (10a, 10b) affecté à une rainure de guidage de fil (7a, 7b).
PCT/DE2008/001943 2007-11-28 2008-11-20 Tête de retordage et procédé de guidage de fils sur la tête de retordage d'une machine de câblage Ceased WO2009068001A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112008003668T DE112008003668A5 (de) 2007-11-28 2008-11-20 Zwirnkopf und Verfahren zum Führen von Fäden an einem Zwirnkopf einer Kabliermaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007016606.0 2007-11-28
DE202007016606U DE202007016606U1 (de) 2007-11-28 2007-11-28 Zwirnkopf mit Rotor

Publications (2)

Publication Number Publication Date
WO2009068001A1 true WO2009068001A1 (fr) 2009-06-04
WO2009068001A4 WO2009068001A4 (fr) 2009-08-27

Family

ID=39079277

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/001943 Ceased WO2009068001A1 (fr) 2007-11-28 2008-11-20 Tête de retordage et procédé de guidage de fils sur la tête de retordage d'une machine de câblage

Country Status (2)

Country Link
DE (2) DE202007016606U1 (fr)
WO (1) WO2009068001A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016006832A1 (de) * 2016-06-02 2017-12-07 Saurer Germany Gmbh & Co. Kg Zwirnkopfrotor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1114129B (de) * 1957-10-09 1961-09-21 Onderzoekings Inst Res Vorrichtung zum Zusammenzwirnen zweier Faeden

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1114129B (de) * 1957-10-09 1961-09-21 Onderzoekings Inst Res Vorrichtung zum Zusammenzwirnen zweier Faeden

Also Published As

Publication number Publication date
DE112008003668A5 (de) 2010-11-04
WO2009068001A4 (fr) 2009-08-27
DE202007016606U1 (de) 2008-02-14

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