EP0253111B1 - Procédé et installation de traitement d'un tissu tubulaire en déplacement à l'état humide - Google Patents

Procédé et installation de traitement d'un tissu tubulaire en déplacement à l'état humide Download PDF

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Publication number
EP0253111B1
EP0253111B1 EP87107765A EP87107765A EP0253111B1 EP 0253111 B1 EP0253111 B1 EP 0253111B1 EP 87107765 A EP87107765 A EP 87107765A EP 87107765 A EP87107765 A EP 87107765A EP 0253111 B1 EP0253111 B1 EP 0253111B1
Authority
EP
European Patent Office
Prior art keywords
tubular fabric
expansion zone
wet
arrangement
fabric
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
EP87107765A
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German (de)
English (en)
Other versions
EP0253111A1 (fr
Inventor
Werner Koch
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.)
Bruckner Apparatebau Michelstadt GmbH
Brueckner Apparatebau GmbH
Original Assignee
Bruckner Apparatebau Michelstadt GmbH
Brueckner 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 Bruckner Apparatebau Michelstadt GmbH, Brueckner Apparatebau GmbH filed Critical Bruckner Apparatebau Michelstadt GmbH
Publication of EP0253111A1 publication Critical patent/EP0253111A1/fr
Application granted granted Critical
Publication of EP0253111B1 publication Critical patent/EP0253111B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames

Definitions

  • the invention relates to a method for treating continuously transported tubular goods in the wet state, according to the preamble of claim 1. Furthermore, the invention relates to an apparatus for carrying out this method.
  • a method and an apparatus of the kind described are known from DE-A-34 33 701.
  • an expansion zone is sealed at its beginning and end by a pair of rollers, one roller of which can be driven and regulated.
  • the feed rate and / or the take-off speed of the tubular goods are regulated via the speed of the driven rollers.
  • a very uniform stretching of the tubular goods is achieved in the manner described above without the surface being adversely affected (by mechanical devices).
  • the object of the present invention is to provide a further method of the type required in the preamble of claim 1, which is characterized by a very even stretching and gentle treatment of the tubular goods in that it has a particularly space-saving and structurally simple design for its implementation used device allows.
  • the tubular fabric immediately stretches to the last stage of a wet treatment, that is to say the stretch zone with the balloon-like inflation of the tubular fabric is arranged here, there is first of all a considerable saving of space compared to a stretch zone to be arranged separately.
  • This and the structurally relatively simple construction of the associated device are further favored by the fact that the wet tubular goods from the last wet treatment stage are supplied in sufficient quantity to the beginning of the expansion zone, that the stock of goods which is always present there ensures sufficient sealing of the tubular goods against air leakage , whereby the tubular goods can be fed to the beginning of the expansion zone without tension and can also be removed from there without tension and fed to the actual expansion zone.
  • the desired simplification is supported in an extremely advantageous manner in that the correction value determined in the actual value / setpoint comparison is used as a correction output signal in order to increase the amount of air injection into the tubular fabric in the expansion zone in the sense of a width correction of this tubular fabric found to be necessary Taxes.
  • the stretch zone can thus be provided, for example, immediately after or above a last washing compartment, impregnation compartment or another wet treatment compartment, it also being advantageous to treat the goods in a tube-wide condition and thus at the beginning of the stretch zone feed.
  • the tubular goods can be passed through a pinch joint at the end of the expansion zone in a manner known per se and be drained and laid flat in the process.
  • the tubular goods can be dewatered not only continuously through a continuously working wet treatment plant and an expansion zone with stretching width, but also continuously - without stopping the wet treatment plant - in the finished width.
  • a device for carrying out the method according to the invention contains the features specified in the preamble of claim 3 and is characterized by the features specified in the characterizing part of this claim 3.
  • the device for the wet treatment of continuously transported tubular goods 1 is arranged directly on the outlet part of a suitable wet treatment system, of which for the sake of simplicity only the last wet treatment compartment 2 is illustrated, which in the present case is in the form of a boot known per se is formed, but can also be formed in any other suitable manner if necessary.
  • An expansion zone 3 of the treatment device according to the invention is provided directly above the lower boot end 2a of the wet treatment compartment 2, in which compressed air is injected into the wet tubular fabric with the help of a nozzle device 4 to be explained and this tubular fabric 1 is thereby - as indicated by the air bubble 5 - can be inflated like a balloon and thus overstretched in a targeted manner.
  • the essentially vertically oriented expansion zone 3 is at the beginning and end, i.e. sealed at the upper and lower ends so that essentially no compressed air blown into the wet tubular fabric 1 can escape to the outside.
  • the lower boot end 2a forming a transition area between the last wet treatment compartment 2 and the stretching zone 3 contains a sliding grid 6, which is preferably designed as a plastic sliding grate, which brings the wet tubular goods 1 free of tension and a goods store immediately below the stretching zone 3 forms, as indicated in Fig. 1 by the tubular fabric 1 pushed together in folds in the lower boot end 2a.
  • This goods store on the sliding grate 6 thereby simultaneously forms a lower sealing point at the lower end of the expansion zone 3 against air leakage from the tubular material 1.
  • the upper sealing point is formed by a pair of squeeze rollers 7 which are known per se.
  • the nozzle device 4 provided for blowing compressed air into the tubular material 1 can in principle be designed and arranged in any suitable embodiment. It is particularly advantageous if - as shown in FIG. 1 - this nozzle device contains two swivel arms 8a and 8b arranged on both sides of the tubular fabric 1, at the free ends of which compressed air nozzles 9 are attached, between which the tubular fabric 1 is guided.
  • the swivel arms 8a, 8b containing the supply air lines to the compressed air nozzles 9 are held in only indicated swivel bearings 10a and 10b, so that the swivel arms 8a, 8b can move in the direction of the indicated double arrows 11, which on the one hand makes it easy Guidance of the inflated tubular goods 1 within the expansion zone 3 can be achieved without an undesirable mechanical influence on the outside of the tubular goods 1 (chafing points).
  • the compressed air nozzles 9 are connected to a compressed air supply line 12 in which a continuously regulating compressed air metering valve 13 is provided and which in turn is connected to a high-performance blower 14 belonging to the nozzle device 4.
  • the compressed air metering valve 13 is assigned a motor with a control controller 15, the metering valve 13 of the nozzle device 4 being connected in terms of control to a computer 16 of a suitable design via this motor with the control controller 15.
  • a width measuring device 17 is also connected in terms of control to this computer 16, which can be provided in any suitable embodiment.
  • the computer 16 simultaneously connects the width measuring device 17 with the nozzle device 4 or its compressed air metering valve 13 in such a way that the compressed air supply to the nozzle device 4 can be controlled or readjusted as a function of a difference between the measured and predetermined width of the goods.
  • width measuring device 17 Any mechanical, electromechanical or electronic device suitable for this purpose can be used as the width measuring device 17. However, it is particularly advantageous if this width measuring device is a photoelectronic measuring device 17 working with a light curtain.
  • the treatment device according to the invention also contains an application spray device 19, directly in front of the pinch joint or the pinch roller pair 7 that forms it, by means of which suitable chemicals, for example plasticizers, can be sprayed onto the wet tube material 1 before the tube material the pinch roller pair 7 pas siert.
  • This application spray device 19 contains two spray tubes 20 arranged on both sides of the tubular goods 1 and a circulation pump 21 which is connected to the spray tubes 20 on the one hand via a pressure line 22 and, on the other hand, via its suction line 23 to a fleet collecting device 24 below the wet treatment compartment 2.
  • An application medium metering device 25 of a suitable design is also connected to the suction line 23 of this circulation pump 21 via a metering line 26.
  • two guide rods or guide rollers 27, which are provided at a suitable distance from one another and act on the outside of the inflated tubular fabric 1, can also be provided in such a way that the tubular fabric 1 running towards the squeeze rollers 7 already exists is compressed to a certain extent and aligned in the width in order to enable the pair of nip rollers 7 to pass without wrinkles.
  • the design and arrangement of the treatment device described so far with reference to the example according to FIG. 1 is extremely space-saving but is simply constructed and easily accessible everywhere.
  • the device also represents an extremely favorable combination of three essential treatment processes: the main type of treatment, namely the wet stretching and spreading of the wet tubular goods, can be carried out in an extremely advantageous manner with the dewatering of the tubular goods (by means of the upper pair of nip rollers 7) and with the Application of additional chemicals (eg plasticizers or the like) in the area in front of the nip rollers can be combined.
  • additional chemicals eg plasticizers or the like
  • any other suitable device can be used that serves the same purpose, for example a conveyor belt or the like.
  • the assignment of the compressed air nozzles 9 the most suitable longitudinal or vertical section of the expansion zone 3 will depend primarily on the type of wet treatment beforehand.
  • a suitable converter can be used for controlling the motor 15 of the compressed air metering valve 13 instead of the positioner mentioned, for example a so-called IP converter, by means of which the electrical or electronic control signals coming from the computer 16 are converted into pneumatic control variables. to control the drive of the compressed air metering valve 13 in the sense of opening, closing or throttling this valve.
  • the tubular fabric 1 is transported continuously at a predetermined speed in the direction of arrow 1a through the expansion zone 3 through the pair of squeeze rollers 7 and finally through the width measuring device 17.
  • the tubular fabric 1 is, for example, circular knitted tubular fabric which is to be specifically stretched or stretched to a predetermined width (in the folded-up state again).
  • the tubular fabric 1, which is sealed at the beginning and end of the expansion zone 3 against air leakage, is overexpanded in the wet state with the aid of the air bubble 5, which is constantly maintained within the tube by compressed air injection (tests have shown that wet tubular fabric with air up to about 30% of its width can be overstretched).
  • the wet tubular fabric 1 passes through the pinch joint formed by the pair of squeeze rollers 7, is retained by the air bubble 5 and the tubular fabric 1 is mechanically dewatered. At the same time, the tubular goods 1 are laid completely wrinkle-free in this pinch joint.
  • the squeezed-out and downward-flowing liquid seals off the goods balloon formed in the expansion zone 3 (ie free spaces between the fibers are closed by the liquid) and thus allows the tubular goods 1 to be overstretched only at the points at which compressed air is supplied via the compressed air nozzles 9 is injected into the interior of the tubular fabric 1, the liquid is displaced by air.
  • the tubular fabric 1 In the broad state, i.e. in its full width WB achieved by overstretching, the tubular fabric 1 then passes through the width measuring device 17.
  • the actual width achieved or the actual value obtained is measured electronically with the aid of a light curtain indicated by arrows 18.
  • the actual value of the fabric width WB measured in the width measuring device 17 is fed to the computer 16, into which a desired value, ie the desired fabric width, is entered.
  • the actual value and the target value are then compared in the computer 16. If a deviation between the actual value and the target value is ascertained in the computer 16, ie if, for example, the actual value is 500 mm and the predetermined target value is 600 mm, then a corresponding correction value is formed, which is converted in the computer into a correction output signal.
  • This correction output signal is sent to a position controller 29 of the motor 15 assigned to the compressed air metering valve 13 or a suitable one Transducers (for example, so-called IP converters) are supplied so that the amount of air injection (via the compressed air nozzles 9) into the tubular fabric 1 can be controlled or readjusted in the sense of the required width correction of this tubular fabric 1. If, for example, the actual value of the fabric widths WB behind the expansion zone 3 is determined to be too small, then the amount of compressed air to be introduced into the tubular fabric 1 via the compressed air nozzles 9 must be increased accordingly in order to bring about a greater overstretching of the tubular fabric 1 in the expansion zone 3, and vice versa.
  • Transducers for example, so-called IP converters
  • plasticizer or another chemical is also to be applied during this overstretching of the wet tubular fabric 1 before dewatering (pinch roller pair 7), this can be done in the manner described above with reference to FIG. 1 with the aid of the application spray device 19.
  • Plasticizers can be used, for example, in the order of about 1-2% of the weight of the goods.
  • These application chemicals are expediently metered into the suction line 23 of the circulation pump 21 (see FIG. 1), so that the resulting liquor with the help of the spray tubes 20 on both sides or on all sides directly in front of the pinch joint (pinch roller pair 7) on the outside of the Tubular goods can be applied.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (9)

1. Procédé de traitement d'un produit tubulaire textile (1) transporté en continu et à l'état humide, suivant lequel:
a) de l'air comprimé est injecté à l'intérieur d'une zone d'extension (3) dans le produit tubulaire humide fermé de manière étanche ou hermétique au début et à la fin de cette zone de manière à empêcher toute sortie d'air, le produit tubulaire subissant ainsi une surextension calculée,
b) la largeur (WB) du produit tubulaire est mesurée en aval de la zone d'extension (3), la valeur réelle décelée de la largeur du produit est comparée à une valeur de consigne prescrite et en cas de différences entre la valeur réelle et la valeur de consigne, une valeur de correction est formée,
c) un réajustement est effectué dans la région de la zone d'extension en fonction de la grandeur de la valeur de correction, caractérisé par les particularités suivantes:
d) la surextension du produit tubulaire (1) fait suite immédiatement au dernier étage (2) d'un traitement au mouillé, le produit tubulaire humide provenant de ce dernier étage de traitement au mouillé étant dirigé sur la zone d'extension (3) sans subir aucune traction et en quantité suffisante pour que la réserve du produit assure l'étanchéité du début de la zone d'extension en empêchant toute sortie d'air;
e) la valeur de correction déterminée par la comparaison de la valeur réelle et de la valeur de consigne est convertie en un signal de sortie de correction qui commande le débit d'injection d'air à l'intérieur de la zone d'extension (3) dans le sens de la correction nécessaire de la largeur du produit tubulaire.
2. Procédé selon la revendication 2, suivant lequel le produit tubulaire est dirigé à la fin de la zone d'extension dans un passage provoquant un écrasement pour provoquer mécaniquement l'extraction de l'humidité et pour qu'il soit mis à plat, caractérisé en ce que des produits chimiques sont appliqués accessoirement en quantité dosée de toute part sur le produit tubulaire humide dans la région précédant immédiatement le passage provoquant un écrasement.
3. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, comprenant
a) une zone d'extension (3) qui est délimitée par des lieux supérieur et inférieur de fermeture hermétique (2a, 7) empêchant toute sortie d'air du produit tubulaire (1), ainsi qu'un appareillage d'injection (4) situé entre ces lieux de fermeture hermétique,
b) un appareillage (17) de mesure de largeur du produit tubulaire (1) mis à plat, appareillage disposé en aval du lieur supérieur de fermeture hermétique (7) de la zone d'extension (3), caractérisé en ce que
c) la zone d'extension (3) est prévue directement à proximité du dernier compartiment (2) d'une installation de traitement au mouillé et la zone de transition (2a) comprise entre ce dernier compartiment de traitement au mouillé et la zone d'extension forme le lieu inférieur de fermeture hermétique;
d) l'appareillage d'injection (4) est asservi par l'intermédiaire d'une calculatrice (16) à l'appareillage (17) de mesure de largeur de manière que l'alimentation en air de l'appareillage d'injection soit commandée en fonction de la différence entre les largeurs (WB) mesurée et prescrite du produit.
4. Dispositif selon la revendication 3, caractérisé en ce que la zone de transition (2a) entre le dernier compartiment de traitement au mouillé (2) et la zone d'extension (3) comprend des organes, en particulier une grille de glissement (6), qui fait circuler le produit tubulaire humide (1) sans exercer aucune traction et qui forme un accumulateur du produit.
5. Dispositif selon la revendication 3, caractérisé en ce que l'appareillage de mesure de largeur consiste en un appareillage photoélectronique (17) opérant avec un rideau de lumière (18).
6. Dispositif selon la revendication 3, caractérisé en ce que l'asservissement entre la calculatrice (16) et l'appareillage d'injection (4) comprend une vanne doseuse d'air comprimé (13) assurant un réglage permanent et qui est combinée avec un convertisseur ou un régulateur de régime (15, 29) relié à la calculatrice (16).
7. Dispositif selon la revendication 3, caractérisé en ce que l'appareillage d'injection (4) comprend deux bras oscillants (8a, 8b) à l'extrémité libre de chacun desquels est disposé un injecteur (9) d'air comprimé, le produit tubulaire (1) passant entre ces injecteurs.
8. Dispositif selon la revendication 3 et pour la mise en oeuvre du procédé selon la revendication 2, caractérisé en ce que le lieu supérieur de fermeture hermétique de la zone d'extension (3) est formé par des cylindres essoreurs (7) et un appareillage d'application par pulvérisation (19) destiné à projeter des produits chimiques sur le produit tubulaire textile (1) est prévu immédiatement en amont de ces cylindres essoreurs.
9. Dispositif selon la revendication 8, caractérisé en ce que l'appareillage d'application par pulvérisation (19) comprend deux tubes pulvérisateurs (20) disposés de part et d'autre du produit tubulaire (1) ainsi qu'une pompe de circulation (21) qui communique d'une part avec les tubes pulvérisateurs et d'autre part avec un collecteur de bain (24) situé au-dessous du dernier compartiment de traitement au mouillé (2), un doseur d'agent d'application (25) étant raccordé à la canalisation d'aspiration (23) de la pompe de circulation.
EP87107765A 1986-07-18 1987-05-27 Procédé et installation de traitement d'un tissu tubulaire en déplacement à l'état humide Expired EP0253111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3624406 1986-07-18
DE19863624406 DE3624406A1 (de) 1986-07-18 1986-07-18 Verfahren und vorrichtung zur behandlung von kontinuierlich transportierter schlauchware im nassen zustand

Publications (2)

Publication Number Publication Date
EP0253111A1 EP0253111A1 (fr) 1988-01-20
EP0253111B1 true EP0253111B1 (fr) 1989-10-25

Family

ID=6305519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107765A Expired EP0253111B1 (fr) 1986-07-18 1987-05-27 Procédé et installation de traitement d'un tissu tubulaire en déplacement à l'état humide

Country Status (5)

Country Link
US (1) US4835992A (fr)
EP (1) EP0253111B1 (fr)
JP (1) JPS6328966A (fr)
DE (2) DE3624406A1 (fr)
GR (1) GR3000280T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8800609D0 (sv) * 1988-02-19 1988-02-19 Iro Ab Anordning for hydro-extraktion av slangvara
ES2082177T3 (es) * 1991-09-23 1996-03-16 Solipat Ag Procedimiento para el tratamiento humedo de productos de tubo flexible textiles, dispositivo para la realizacion del procedimiento y aplicacion del procedimiento.
US5826289A (en) * 1996-09-27 1998-10-27 Catallo; Frank Wet processing system for treating wetted roped knitted fabric tubes
DE50309861D1 (de) * 2003-11-17 2008-06-26 Suchy Textilmaschb Gmbh Verfahren und vorrichtung zur behandlung von textindgestricke
US9416474B2 (en) * 2013-04-12 2016-08-16 Teresa Catallo Washer for tubular knitted fabric material
US10570542B2 (en) * 2015-09-11 2020-02-25 Teresa Catallo Apparatus and method for pre-shrinking a wet fabric prior to drying

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704521C2 (de) * 1967-02-10 1982-04-22 Bemberg Folien Gmbh, 5600 Wuppertal Vorrichtung zum biaxialen Verstrecken eines Schlauches aus thermoplastischem Kunststoff
SE309018B (fr) * 1967-05-10 1969-03-10 Nyman C
US3580015A (en) * 1968-09-06 1971-05-25 Fukui Seiren Kako Keya Kk Device for treating textile fabric
GB1230477A (fr) * 1968-11-20 1971-05-05
US3631692A (en) * 1969-03-26 1972-01-04 Rimar Spa Machine for washing fabrics
JPS4840855A (fr) * 1971-09-23 1973-06-15
JPS5117636B2 (fr) * 1971-12-29 1976-06-03
JPS4961494A (fr) * 1972-10-13 1974-06-14
JPS5212832B2 (fr) * 1972-12-28 1977-04-09
DE2539350C2 (de) * 1975-09-04 1977-09-01 Hoechst Ag, 6000 Frankfurt Verfahren zum kontinuierlichen Färben von Cellulosefasern oder deren Mischungen mit Synthesefasern mit auf der Faser erzeugten wasserunlöslichen Azofarbstoffen
CH625001A5 (en) * 1976-08-11 1981-08-31 Fulvio Conti Apparatus for the wet treatment of tubular textile material.
US4376621A (en) * 1977-03-31 1983-03-15 The Dow Chemical Company Method and apparatus for tube extrusion
JPS56107061A (en) * 1980-01-23 1981-08-25 Santo Tekkosho Kk Set method and apparatus of circular knitted fabric
DE3024252A1 (de) * 1980-06-27 1982-01-21 Maschinenfabrik Benninger AG, 9240 Uzwil Einrichtung zur verweilbehandlung von textilbahnen
DD214157A1 (de) * 1983-03-11 1984-10-03 Fuerstenwalde Reifen Veb K Breitenmesseinrichtung fuer bewegte materialbahnen, insbesondere an gewebekalandern
DE3425877A1 (de) * 1984-07-13 1986-01-16 Brückner-Apparatebau GmbH, 6120 Erbach Verfahren zur kontinuierlichen nassveredelung von schlauchware
DE3433701A1 (de) * 1984-09-13 1986-03-20 Brückner-Apparatebau GmbH, 6120 Erbach Verfahren und vorrichtung zum dehnen von schlauchware

Also Published As

Publication number Publication date
GR3000280T3 (en) 1991-03-15
DE3760880D1 (en) 1989-11-30
EP0253111A1 (fr) 1988-01-20
US4835992A (en) 1989-06-06
DE3624406A1 (de) 1988-01-28
JPS6328966A (ja) 1988-02-06

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