EP0180715B1 - Procédé et appareil pour le frisage de câbles de filaments synthétiques - Google Patents

Procédé et appareil pour le frisage de câbles de filaments synthétiques Download PDF

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Publication number
EP0180715B1
EP0180715B1 EP85108632A EP85108632A EP0180715B1 EP 0180715 B1 EP0180715 B1 EP 0180715B1 EP 85108632 A EP85108632 A EP 85108632A EP 85108632 A EP85108632 A EP 85108632A EP 0180715 B1 EP0180715 B1 EP 0180715B1
Authority
EP
European Patent Office
Prior art keywords
pressure rollers
water
chamber
cooling air
upsetting
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
Application number
EP85108632A
Other languages
German (de)
English (en)
Other versions
EP0180715A3 (en
EP0180715A2 (fr
Inventor
Ernst Vehling
Diethard Hübner
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.)
NEUMAG Neumuenstersche Maschinen und Anlagenbau GmbH
Original Assignee
Neumuenstersche Maschinen und Apparatebau 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 Neumuenstersche Maschinen und Apparatebau GmbH filed Critical Neumuenstersche Maschinen und Apparatebau GmbH
Publication of EP0180715A2 publication Critical patent/EP0180715A2/fr
Publication of EP0180715A3 publication Critical patent/EP0180715A3/de
Application granted granted Critical
Publication of EP0180715B1 publication Critical patent/EP0180715B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes

Definitions

  • the invention relates to a method for crimping cables made of synthetic threads according to the preamble of patent claim 1.
  • the invention also relates to a stuffer box curling device suitable for carrying out the method according to the preamble of patent claim 4.
  • cables made from freshly spun threads made of synthetic polymers are stretched in a continuous process, crimped in a stuffer box and possibly subsequently cut into staple fibers.
  • the crimping speed which is usually 100 to 150 m / min in conventional discontinuous processes and hardly exceeds 300 m / min in practice, must naturally depend on the spinning speed in a continuous process and is therefore always more than 500 m / min, usually even over 1000 m / min.
  • the stretched cable has a speed of 2000 m / min; the cable is fed to the crimping device at this speed.
  • the feed rollers of the crimping chamber have a roll diameter of e.g. B. 120 mm, a speed of more than 5000 U / min. The development tends to even higher speeds.
  • the specified speed is calculated from the condition that the surface speed of the rolls is equal to the feed speed of the cable. In contrast, the speed with which the plug moves forward in the stuffer box is considerably lower. Therefore, in addition to the heat generated by the upsetting process itself, there is frictional heat at the points of contact between the rollers and the stopper, which becomes increasingly important as the speed increases.
  • the cable the temperature of which increases due to the heat generated, continuously dissipates heat. Calculations and estimates show that the actual upsetting heat is usually dissipated through the cable even at high speeds, without its temperature exceeding the permissible level. However, this no longer applies in full to the frictional heat mentioned above. Cooling is therefore necessary.
  • the invention is based on the object of further developing a method of the type specified at the outset in such a way that increased cooling is made possible. Another object is to provide a stuffer box crimping device suitable for carrying out the method.
  • the first mentioned task is accomplished by the characteristic feature of claim 1 solved.
  • water droplets are carried away by the cooling air flow and carried to the places to be cooled.
  • the amount of water required can be kept so low that the cable is only slightly moistened. This slight moistening is not only harmless, but also has a surprising advantage: the preparation adhering to the threads, which has dried due to the previous contact with the hot stretching rollers, is moistened and evenly distributed so that the cable becomes supple again.
  • the measure according to claim 2 is recommended for coarser single titers, from about 4 dtex. Pure water is preferred for lower single titres because the addition of preparation can lead to sticking in such cases.
  • the upper roller roll acts as a channel in which a small amount of water collects.
  • the actual stuffer box 1 is assigned two narrow, disk-like pressure rollers 2, 2 ', the axes of which lie in a horizontal plane.
  • the pressure rollers 2, 2 ' are mounted on shafts 3, 3' overhung on a machine frame, of which only the front plate 4 is indicated in FIG. 2. Details of the storage and the drive, which are not part of the invention, are described in detail in the earlier application DE-A-3 332 387.
  • the housing halves 5, 5 ' are asymmetrical to one another, so that their interface is closer to the pressure roller 2' located on the right in FIGS. 1 and 2 than to the pressure roller 2 located to the left.
  • the pressure roller 2 'with the housing half 5' is, as described in detail in the earlier application mentioned, displaceable relative to the pressure roller 2 and the associated housing half 5.
  • Each housing half 5, 5 ' has a bottom 6, 6' and a cover 7, 7 'screwed thereon.
  • the bottom 6 is connected to the bearing bush of the shaft 3, the bottom 6 'to the bearing bush of the shaft 3'.
  • narrow side plates 8, 8 'made of wear-resistant material are interchangeably inserted into the base 6 or the cover 7 at the interface. These form the front and rear boundary wall of the stuffer box 1.
  • spacers 9, 9' in the form of rings which are cut along a chord.
  • the cut surfaces 10, 10 'on both sides form the lateral boundaries of the stuffer box 1 below the plane of the pressure roller axes.
  • the corresponding surfaces 11, 11' delimit an inlet channel 12 above this plane. and the stuffer box 1 is narrowed downward in a slightly wedge shape.
  • the wedge angle can be changed by slightly rotating the spacers 9, 9 'in the corresponding concentric base recess, which forms a guide.
  • Screws 13, 13 ' which are accessible through slots in the edge of the bottom 6, 6', serve for locking.
  • the intermediate pieces 9, 9 ' are turned eccentrically inside.
  • On the open side there is only a very small amount of play between the cutting edge 14, 14 'of the intermediate piece 9 or 9' and the outer surface of the assigned pressure roller 2, 2 ', which can be adjusted precisely by actuating screws 15, 15'.
  • On the other hand there is a relatively wide channel 16, 16 'on the side facing away from the roll gap. Additional widenings 17, 17 'are located under the axes of the pressure rollers 2, 2'.
  • an annular air chamber 21 In the interior of the injector 20 there is an annular air chamber 21, into which an air inlet pipe 22 opens laterally.
  • the air chamber 21 is delimited on one end face by a plate 23 which has a ring of narrow bores 24 arranged obliquely to the injector axis.
  • the other end is closed by a screwed plug 25 through which an intake pipe 26 is passed in the middle.
  • This sits at its end in a bore in the plate 23 and therefore opens - like the bores 24 - into a mixing chamber 27 which is coaxial with the air chamber 21.
  • the air inlet pipe 22 is connected via a control valve 30 and an adjustable pressure reducer 31 to a compressed air source, not shown.
  • the suction pipe 26 is connected to a water tank 33 via a control valve 32.
  • the injector 20 'coincides with the injector 20 and - as FIG. 1 shows - is connected to corresponding pipelines.
  • compressed air with max. 6 bar overpressure supplied via the control valve 30 and the pressure reducer 31 It gets into the air chamber 21 and from there via the bores 24 into the mixing chamber 27 at an increased speed.
  • the air flow which is strongly swirled by the skewed arrangement of the bores 24, creates a negative pressure, so that water is sucked out of the container 33 via the suction pipe 26.
  • the amount of water can be regulated by the valve 32.
  • the suctioned water is swirled with the air in the mixing chamber 27 and torn into the finest drops.
  • the air enriched with water passes through the line piece 28, the inlet channel 19 and the wide bore 18 into the channel 16 and in a corresponding manner into the channel 16 '.
  • the compressed air is supplied to the injectors at an overpressure of 2.0 bar.
  • the water consumption is 2 to 4 liters per hour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

1. Procédé de frisage de câbles en filaments synthétiques, dans lequel un câble est amené à une chambre de refoulement à grande vitesse, au moyen de rouleaux compresseurs rotatifs, et dans lequel de l'air de refroidissement est insufflé dans un carter renfermant les rouleaux compresseurs en service, caractérisé en ce que l'air de refroidissement contient de fines gouttelettes d'eau.
2. Procédé suivant la revendication 1, caractérisé en ce qu'une préparation est additionnée à l'eau en quantité de maximum 5 %.
3. Procédé suivant la revendication 1, caractérisé par l'utilisation d'eau distillée.
4. Dispositif de frisage à chambre de refoulement pour la mise en oeuvre du procédé suivant l'une des revendications 1 à 3, comprenant deux rouleaux compresseurs coopérant entre eux et un carter renfermant les rouleaux compresseurs et comportant au moins un canal d'admission d'air de refroidissement, caractérisé par au moins un injecteur (20, 20') pourvu d'un tube d'admission (22) pouvant être raccorde à une source d'air comprimé, l'ouverture du tube étant en communication avec une chambre de mélange (27) par l'intermédiaire de canaux étroits (alésages 24), d'un tube d'aspiration (26), débouchant dans la chambre de mélange (27) et partant d'un reservoir d'eau (33) et d'un conduit (28) guidé de la chambre de mélange (27) vers le canal d'admission (19, 19') du carter et destiné à l'air de refroidissement chargé de gouttes d'eau.
5. Dispositif de frisage à chambre de refoulement suivant la revendication 4, caractérisé en ce que les axes des deux rouleaux compresseurs (2, 2') se trouvent dans un plan horizontal et en ce que la chambre de refoulement (1) est disposée sous le plan des axes des rouleaux compresseurs.
EP85108632A 1984-11-09 1985-07-11 Procédé et appareil pour le frisage de câbles de filaments synthétiques Expired EP0180715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843440975 DE3440975A1 (de) 1984-11-09 1984-11-09 Verfahren und vorrichtung zum kraeuseln von kabeln aus synthetischen faeden
DE3440975 1984-11-09

Publications (3)

Publication Number Publication Date
EP0180715A2 EP0180715A2 (fr) 1986-05-14
EP0180715A3 EP0180715A3 (en) 1987-04-01
EP0180715B1 true EP0180715B1 (fr) 1989-03-08

Family

ID=6249907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108632A Expired EP0180715B1 (fr) 1984-11-09 1985-07-11 Procédé et appareil pour le frisage de câbles de filaments synthétiques

Country Status (4)

Country Link
US (1) US4756063A (fr)
EP (1) EP0180715B1 (fr)
JP (1) JPS61113843A (fr)
DE (2) DE3440975A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450657A (en) * 1993-05-21 1995-09-19 E. J. Brooks Company Seal
AU5618598A (en) * 1996-12-20 1998-07-17 Clean Diesel Technologies, Inc. Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr
DE10208353A1 (de) 2002-02-27 2003-09-11 Trevira Gmbh Verfahren zur Herstellung feiner stauchgekräuselter Kabel aus synthetischen Filamenten sowie deren Weiterverarbeitung zu textilen Hygieneartikeln

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862279A (en) * 1956-04-10 1958-12-02 Allied Chem Tow crimping apparatus
GB974512A (en) * 1960-06-17 1964-11-04 Eastman Kodak Co An improved process and apparatus for the manufacture of uniformly crimped filamentary tow
NL301260A (fr) * 1962-12-04
GB998343A (en) * 1963-07-06 1965-07-14 British Nylon Spinners Ltd Improvements in or relating to stuffer-box crimpers
US3283387A (en) * 1964-10-30 1966-11-08 Spunize Company Of America Inc Apparatus and method for crimping filamentary textile material
US3545058A (en) * 1967-10-17 1970-12-08 Techniservice Corp Stuffer crimper with cooling fluid wretreatment means
US3491420A (en) * 1967-10-17 1970-01-27 Techniservice Corp Strand crimping
DE1941993B2 (de) * 1969-08-18 1972-03-23 Vorrichtung zum einspuelen von bauelementen
DE2222124A1 (de) * 1972-05-05 1973-11-22 Vepa Ag Stauchkammerkraeuselvorrichtung
US4006861A (en) * 1976-02-12 1977-02-08 All-Power Manufacturing Co. Machine tool coolant apparatus
DE3332387A1 (de) * 1983-09-08 1985-03-21 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Stauchkammer-kraeuselvorrichtung

Also Published As

Publication number Publication date
JPS61113843A (ja) 1986-05-31
EP0180715A3 (en) 1987-04-01
US4756063A (en) 1988-07-12
DE3440975A1 (de) 1986-05-15
DE3568598D1 (en) 1989-04-13
JPH0122369B2 (fr) 1989-04-26
EP0180715A2 (fr) 1986-05-14

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