EP2524081B1 - Dispositif de correction de déformation d'une bande de matériau transportée et procédé correspondant - Google Patents

Dispositif de correction de déformation d'une bande de matériau transportée et procédé correspondant Download PDF

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Publication number
EP2524081B1
EP2524081B1 EP11708679.3A EP11708679A EP2524081B1 EP 2524081 B1 EP2524081 B1 EP 2524081B1 EP 11708679 A EP11708679 A EP 11708679A EP 2524081 B1 EP2524081 B1 EP 2524081B1
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EP
European Patent Office
Prior art keywords
curved rollers
rotation
material web
correction
warpage
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
EP11708679.3A
Other languages
German (de)
English (en)
Other versions
EP2524081A2 (fr
Inventor
Bernhard Fischer
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.)
Mahlo GmbH and Co KG
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Mahlo GmbH and Co KG
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.)
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Publication date
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Publication of EP2524081A2 publication Critical patent/EP2524081A2/fr
Application granted granted Critical
Publication of EP2524081B1 publication Critical patent/EP2524081B1/fr
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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
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
    • 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
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • D06C3/067—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus by curved rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/174—Textile, fibre

Definitions

  • the invention relates to a device for distortion correction of a conveyed web according to the preamble of claim 1 and an associated method according to the preamble of claim 10.
  • a textile material web consists in particular of threads crossed at right angles, which are produced during the weaving process in the loom or in the weaving machine.
  • warp longitudinal threads
  • weft transverse threads
  • the orthogonal textile structure becomes due to the distortion (“skewed draft") or bowing to the fabric running direction (“bow distortion”)
  • bow distortion bowing to the fabric running direction
  • devices or so-called straightening machines are known in which by means of arches arranged arcuately to the fabric direction of the textile web sheet rolls the existing bow distortions are compensated by appropriate application of compensating forces on the conveyed web.
  • the conveying path of the web in the direction of web travel at the web edges is different from the web center, so that can be corrected by suitable pivoting in or out of the bow rollers in the conveyed web and the consequent wrap angle of the web of each present bow distortion.
  • straightening machines for correcting bow distortion in conveyed web with increased weight, in particular of webs for the production of carpets
  • which comprise at least two bow rollers
  • the free ends are connected to rotatable support members which are mechanically coupled about a common axis of rotation drivable stored in a machine frame are.
  • the bow rollers are fixed to each other at a predetermined distance mounted on the two holding plates and thus provide a rigid connection between them.
  • the centers of the free ends of the sheet rolls and the fulcrum of the holding plates are arranged in a plane receiving the common axis of rotation of the holding plates.
  • the bowing of the bow rolls respectively faces outwardly, along an imaginary line perpendicular to the line connecting the centers of the free ends of the bow rolls and the pivot point of the retaining plates.
  • the disadvantage is a slight partial distortion in the web produced when pivoting the described roller assembly by the leveler itself until the desired distortion correction can be performed.
  • a rotation of the complete roller assembly on the holding elements by about 180 ° is required, which is particularly disadvantageous results in a certain dead time in the processing of the web.
  • a continuously operating device for controlling the width and direction of a moving web in which at least two bow rollers are provided in a machine frame, the free ends are connected to each other via a respective holding plate, wherein the two holding plates mounted opposite each other and rotatable about a common axis of rotation are arranged in the machine.
  • From the DE 12 34 179 B and the DE 40 26 268 A1 are also generic devices for aligning weft threads of a running fabric track to remove.
  • the present invention seeks to provide a device and an associated method for delay correction of conveyed webs, which allows an accurate and effective correction of distortions in a conveyed web, in particular the correction of minor distortion in webs with increased weight such as Webs for the production of carpets.
  • the object is achieved on the basis of a device according to the preamble of claim 1 by its characterizing features.
  • the features of the method according to the invention are listed in the patent claim 10.
  • the essential aspect of the device according to the invention is the fact that the two bow rollers are each mounted pivotably on the holding plates. Particularly advantageously, this eliminates any dead time when changing between the first and second correction position for the correction of arcuate displacements "center before” or "edge forward".
  • the straightening mechanism also makes it possible to reduce the wrapping of the goods to the sheet rolls to a minimum necessary level, whereby the burden on the sheet rolls and connected to these drive components by theressyak is kept as low as possible.
  • the bow rollers are each pivotally mounted about a parallel to the common axis of rotation extending roll axis and this formed synchronously to each other pivotally. Due to the proportional control of the sheet roll rotation for the delay an optimized straightening result is achieved and partial distortion avoided by the full-surface conditioning of the web at the bow rollers.
  • FIG. 1 - 3 in each case a schematic cross section through an inventively designed device 1 for delay correction of a conveyed, in particular textile web W in different default correction positions NS, KS1, KS2 is shown.
  • the apparatus 1 for delay correction hereinafter also referred to as straightening machine, comprises, for example, a schematically indicated in the figures machine frame 2, which is preferably frame-like and in which at least one of a plurality of bow rollers 3, 4 existing straightening unit is added.
  • the machine frame 2 forms a rigid, rectangular frame, through which the web W is conveyed through and thereby undergoes a processing.
  • the basic technical structure of such straightening machines 1 and in particular of the machine frames 2 provided for this purpose is sufficiently known from the prior art and can have very different forms of implementation.
  • the apparatus for distortion correction or straightening machine 1 comprises at least one first and second sheet roll 3, 4 whose free ends 3 ', 3 "or 4', 4" are each connected to a first or second holding plate 5, 6 ,
  • the first and second holding plate 5, 6 are arranged opposite each other in the machine frame 2 and each rotatably supported about a common axis of rotation D on the machine frame 2.
  • the drive of the two holding plates 5, 6 is preferably mechanically coupled and takes place via a common, not shown in the figures drive unit.
  • the first and second holding plate 5, 6 preferably have a circular cross-section and are rotatably mounted in their center or pivot points M, M ', wherein the center or pivot points M, M' come to rest on the common axis of rotation D.
  • the rotational movement of the preferably circular-shaped holding plates 5, 5 'realized around its center M, M' for example via a mechanism and the mechanics driving electric motor.
  • first guide roller 7 of the leveler 1 is supplied to be processed textile web W in a fabric direction WL.
  • the web W is deflected by the first guide roller 7 and supplied to the existing of the arrangement of the two bow rollers 3, 4 straightening unit.
  • the first and second sheet rolls 3, 4 are spaced from each other, in such a way that between the two sheet rolls 3, 4, a gap Z results, through which the web W in the predetermined fabric direction WL is feasible, i. the web W is conveyed through between the two bow rollers 3.4.
  • a second guide roller 8 is provided, via which the web W is conveyed after leaving the straightening arrangement of the leveler 1.
  • the first and second Deflection roller 7, 8 also designed to be driven mechanically to ensure sufficient product feed, in particular when processing webs W with increased weight in the direction of web travel WL.
  • the first and second bow rollers 3, 4 are each pivotally mounted on the opposite holding plates 5, 6, in each case about a parallel to the common axis of rotation D of the holding elements 5, 6 extending roll axis WD, WD '.
  • the roll axes WD, WD ' pass through the centers of the two free ends 3', 3 "and 4 ', 4" of the first and second sheet rolls 3, 4.
  • the distance between the vertices S, S' of the deflection DB of the first or second bow roller 3, 4 varies.
  • the wrap angle of the sheet rolls 3, 4 is changed by the web W.
  • the first and second sheet rolls 3, 4 are each rotated relative to one another in such a way that an imaginary connecting line runs through their vertices S, S 'through the common axis of rotation D of the holding elements 5, 6.
  • the first and second bow rollers 3, 4 are also designed to be driven in a preferred embodiment by a mechanism about their arcuate central longitudinal axes.
  • the first and second bow rollers 3, 4 are also mechanically coupled to each other so that they are synchronously pivotable to each other.
  • the first and second bow rollers 3, 4 preferably have the same deflection DB and are both in the direction of rotation of the holding plate 5, 6 and in the opposite direction of rotation pivotable.
  • the pivoting of the first and second bow rollers 3,4 takes place about the roll axis WD, WD ', which runs parallel to the common axis of rotation D of the holding plates 5, 6, wherein in each case the roll axis WD, WD' and the associated arcuate center longitudinal axis of a bow roll 3, 4 each a roll plane E, E 'span.
  • the bow rollers 3, 4 are each warped for distortion correction about their roll rotation axes WD, WD ', that the roll planes E, E' each independently of the pivot position parallel to each other.
  • FIG. 1 shows the different correction positions of the straightening arrangement, which are provided for the correction of different distortions, in detail on the basis of Figures 1 - 3 described, in Fig. 1 a neutral position NS of the leveler 1 is shown.
  • FIG. 2 shows the straightening arrangement in a first correction position KS1 for correcting a delay "center before” and FIG. 3 in a second correction position KS2 for correction of a delay "edge before”.
  • Fig. 1 the graphic symbol consists of a parallel arrangement of lines, ie no distortion, in Fig. 2 from an arcuate arrangement of lines, wherein the goods center in the direction of travel WL leads the edges ("center before”) and in Fig. 3 also from an arcuate arrangement of the lines, wherein the edges of the goods center in relation to the direction of travel WL leading ("edge before").
  • the first and second bow rollers 3, 4 easily touch the web W, and indeed over the entire fabric width.
  • the web W is, for example, from the bottom of the first sheet roll 3 and from the top of the second bow roller 4th touched, whereby a line-like contact between the first and second sheet roll 3, 4 and the conveyed web W is formed. Since there is no looping of the bow rollers 3, 4 through the web W, there is no distortion correction by the straightening unit or straightening arrangement.
  • both the holding elements 5, 6 and the first and second sheet rolls 3, 4 are rotated approximately simultaneously about their respective axis of rotation D or roll rotation axis WD, WD 'in the same or an opposite direction of rotation, whereby the wrap angle uw, uw 'of the web W with respect to the two bow rollers 3, 4 at the free ends 3', 3 "and 4 ', 4" of the bow rollers 3, 4 different from the vertex S, S' of the bow rollers 3, 4 is adjustable.
  • the maximum angle of rotation of the holding elements 5, 6 is for example 90 °.
  • the wrap-around angle uw, uw ' is 180 °, ie. the web W runs in a straight line between the two bow rollers 3, 4 therethrough without thereby a deflection of the web W takes place.
  • the holding elements 5, 6 and the bow rollers 3, 4 are pivoted or rotated in the same direction of rotation, whereby the wrap angle uw 'at the vertex S, S' compared to the wrap angle uw at the free ends 3 ', 3rd "and 4 ', 4" of the bow rollers 3, 4 is reduced, ie the contact surface between the web W and the respective bow roller 3.4 at the apex S, S 'is greater than at the free ends 3', 3 "and 4 ', 4".
  • a bow-shaped distortion "center before” can be addressed accordingly.
  • the second correction position KS2 is achieved in that the holding elements 5, 6 and the bow rollers 3, 4 are pivoted or rotated in different directions of rotation.
  • the wrap angle uw at the free ends 3 ', 3 "and 4', 4" of the bow rollers 3, 4 in comparison to the wrap angle uw 'in the vertex S, S' reduced, ie the contact surface between the web W and the respective bow roller 3.4 in the apex S, S 'is smaller than at the free ends 3', 3 "and 4 ', 4".
  • a bow-shaped delay "edge before" be addressed accordingly.
  • the directivity is thus determined by the respective difference of the contact surface between the web W and the respective bow roller 3.4 in the apex S, S 'and at the free ends 3', 3 "and 4 ', 4".
  • the conveying path of the web through the gap Z between the two bow rollers 3, 4 is changed in the region of the middle of the web W, namely at a rotation of the holding elements 5, 6 and the bow rollers 3, 4 in the same rotation pivoting direction is FIG. 2
  • the conveying path in the region of the middle of the web W increases in comparison to the conveying path in the region of the edges of the web W
  • the conveying path in the region of the middle of the material web W is reduced in comparison to the conveying path in the region of the edges of the material web W.
  • the holding elements 5, 6 are always rotated starting from the neutral position NS in the same direction , which is preferably oriented in the direction of travel WR.
  • the bow rollers 3, 4 remain independent of the correction position KS1, KS2 always in contact with the web W, so that no partial distortion in the web is generated by the straightening arrangement.
  • Fig. 2 and 3 For example, the first and second correction position KS1, KS2 with maximum directivity. It is understood that between the neutral position NS and the in Fig. 2 and 3 shown straightening a variety of different straightening positions are adjustable to adjust the directivity individually to the current needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (15)

  1. Dispositif de correction de déformation d'une bande de matériau (W), en particulier textile, transportée, dans laquelle, dans un bâti de la machine (2), sont prévus aux moins deux rouleaux d'étirement (3, 4) dont les extrémités libres (3', 3", 4', 4") sont chacune reliées ensemble par une plaque de retenue (5, 6), les deux plaques de retenue (5, 6) étant disposées d'en face et de manière à pouvoir tourner autour d'un axe de rotation commun (D) sur le bâti de la machine (2), caractérisé en ce que les deux rouleaux d'étirement (3, 4) s'appuient en pivotement respectivement autour d'un axe de rouleau (WD, WD') s'étendant parallèlement à l'axe de rotation commun (D) sur les deux plaques de retenue (5, 6).
  2. Dispositif selon la revendication 1, caractérisé en ce que les premier et second rouleaux arqués (3, 4) sont réalisés de manière à pouvoir pivoter de manière synchrone l'un par rapport à l'autre.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les rouleaux d'étirement (3, 4) sont disposés espacés l'un de l'autre, la bande de matériau (W) étant transportée dans l'intervalle (Z) circonscrit par les deux rouleaux d'étirement (3, 4) dans un sens prédéfini de circulation du matériau (WL).
  4. Dispositif selon une des revendications 1 à 3, caractérisé par une position neutre (NS) des rouleaux d'étirement (3, 4) dans laquelle les rouleaux d'étirement (3, 4) sont certes en léger contact avec la bande de matériau transportée (W) mais il n'y a pas de correction de déformation.
  5. Dispositif selon une des revendications 1 à 4, caractérisé par une première position de correction (KS1) pour la correction d'une déformation de « milieu devant » et une seconde position de correction (KS2) pour la correction d'une déformation de « bord devant ».
  6. Dispositif selon la revendication 5, caractérisé en ce que, par une rotation orientée dans le sens de circulation du matériau (WL) des plaques de retenue (5, 6), il y a un change de la position neutre (NS) à la première ou seconde position de correction (KS1, KS2).
  7. Dispositif selon une des revendications 1 à 6, caractérisé en ce que les axes des rouleaux (WD, WD') passent par les centres des deux extrémités libres (3', 3" ou 4', 4") du premier ou second rouleau d'étirement (3, 4).
  8. Dispositif selon une des revendications 5 à 7, caractérisé en ce que, dans la première position de correction (KS1), l'angle d'encerclement (uw') de la bande de matériau (W) au sommet (S, S') est inférieur à l'angle d'encerclement (uw) de la bande de matériau (W) aux extrémités libres (3', 3" et 4', 4") des rouleaux d'étirement (3, 4).
  9. Dispositif selon une des revendications 5 à 8, caractérisé en ce que, dans la seconde position de correction (KS2), l'angle d'encerclement (uw) de la bande de matériau (W) aux extrémités libres (3', 3" et 4', 4") des rouleaux d'étirement (3, 4) est inférieur à l'angle d'encerclement (uw') de la bande de matériau (W) au sommet (S, S').
  10. Procédé de correction de déformation d'une bande de matériau (W), en particulier textile, transportée, dans laquelle une bande de matériau (W) est guidée dans au moins deux rouleaux d'étirement (3, 4) dont les extrémités libres (3', 3", 4', 4") sont chacune reliées ensemble par une plaque de retenue (5, 6), les deux plaques de retenue (5, 6) étant disposées d'en face et de manière à pouvoir tourner autour d'un axe de rotation commun (D) dans un système d'ajustement (1), caractérisé en ce que, pour la correction de la déformation, les deux rouleaux d'étirement (3, 4) sont pivotés respectivement vers l'intérieur de la bande de matériau (W) autour d'un axe des rouleaux (WD, WD') s'étendant parallèlement à l'axe de rotation commun (D).
  11. Procédé selon la revendication 10, caractérisé en ce que, pour la correction de la déformation, aussi bien les éléments de retenue (5, 6) sont tournés ou pivotés pratiquement en même temps autour de l'axe de rotation commun (D) que les premiers et second rouleaux d'étirement (3, 4) autour de l'axe des rouleaux (WD, WD') dans le même sens de rotation ou un sens de rotation opposé.
  12. Procédé selon la revendication 11, caractérisé en ce qu'il y a un pivotement/une rotation pratiquement simultané des éléments de retenue (5, 6) et des rouleaux d'étirement (3, 4) dans une relation prédéfinie.
  13. Procédé selon la revendication 10 ou 11, caractérisé en ce que, pour atteindre une première position de correction (KS1) pour corriger une déformation de « milieu devant », les éléments de retenue (5, 6) et les rouleaux d'étirement (3, 4) sont pivotés ou tournés dans le même sens de rotation.
  14. Procédé selon la revendication 10 ou 11, caractérisé en ce que, pour atteindre une seconde position de correction (KS2) pour corriger une déformation de « bord devant », les éléments de retenue (5, 6) et les rouleaux d'étirement (3, 4) sont pivotés ou tournés dans un sens de rotation opposé.
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que, avec un pivotement ou une rotation pratiquement simultané des éléments de retenue (5, 6) et des rouleaux d'étirement (3, 4), l'angle d'encerclement (uw') de la bande de matériau (W) au sommet (S, S') par rapport à l'angle d'encerclement (uw) de la bande de matériau (W) aux extrémités libres (3', 3" et 4', 4") des rouleaux d'étirement (3, 4) est modifié différemment.
EP11708679.3A 2010-01-15 2011-01-12 Dispositif de correction de déformation d'une bande de matériau transportée et procédé correspondant Active EP2524081B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010004842 2010-01-15
DE102010024618A DE102010024618A1 (de) 2010-01-15 2010-06-22 Vorrichtung zur Verzugskorrektur einer geförderten Warenbahn sowie zugehöriges Verfahren
PCT/DE2011/000017 WO2011085716A2 (fr) 2010-01-15 2011-01-12 Dispositif de correction de déformation d'une bande de matériau transportée et procédé correspondant

Publications (2)

Publication Number Publication Date
EP2524081A2 EP2524081A2 (fr) 2012-11-21
EP2524081B1 true EP2524081B1 (fr) 2014-05-07

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EP11708679.3A Active EP2524081B1 (fr) 2010-01-15 2011-01-12 Dispositif de correction de déformation d'une bande de matériau transportée et procédé correspondant

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EP (1) EP2524081B1 (fr)
DE (1) DE102010024618A1 (fr)
WO (1) WO2011085716A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011113665B4 (de) * 2011-09-20 2016-01-07 Mahlo Gmbh & Co. Kg Nadelrichtanordnung zur Verzugskorrektur einer geförderten Warenbahn sowie ein zugehöriges Verfahren
CN111731902B (zh) * 2020-07-03 2022-03-29 佛山市悍虎汽车科技有限公司 一种珍珠棉卷材制造收卷处理机械及处理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234179B (de) * 1963-04-01 1967-02-16 Vlisco Textieldrukkerijen N V Vorrichtung zum Ausrichten von Schussfaeden einer laufenden Gewebebahn
US3606120A (en) * 1969-06-23 1971-09-20 Turbo Machine Co Continuous band width controller and band director
CS8905151A3 (en) * 1989-09-07 1992-01-15 Elitex Zavody Textilniho Device for straightening weft threads in textile bands
DE4314672A1 (de) * 1993-05-04 1994-11-10 Wet Tex Maschinenbau Gmbh Vorrichtung zum Breithalten und Zentrieren einer Warenbahn
DE20213311U1 (de) * 2002-08-30 2003-10-09 Pleva Gmbh Richtmaschine

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Publication number Publication date
EP2524081A2 (fr) 2012-11-21
WO2011085716A2 (fr) 2011-07-21
DE102010024618A1 (de) 2011-07-21
WO2011085716A3 (fr) 2011-10-13

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