EP0830472B1 - Systeme d'etirage en largeur - Google Patents

Systeme d'etirage en largeur Download PDF

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Publication number
EP0830472B1
EP0830472B1 EP96905734A EP96905734A EP0830472B1 EP 0830472 B1 EP0830472 B1 EP 0830472B1 EP 96905734 A EP96905734 A EP 96905734A EP 96905734 A EP96905734 A EP 96905734A EP 0830472 B1 EP0830472 B1 EP 0830472B1
Authority
EP
European Patent Office
Prior art keywords
pin
web
tentering
unit according
wheel unit
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 - Lifetime
Application number
EP96905734A
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German (de)
English (en)
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EP0830472A1 (fr
Inventor
Steffen Greif
Peter Pfeiffer
Ingo Lison
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.)
Kuesters Textile GmbH
Original Assignee
Kuesters Zittauer Maschinenfabrik 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.)
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Publication of EP0830472A1 publication Critical patent/EP0830472A1/fr
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Publication of EP0830472B1 publication Critical patent/EP0830472B1/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
    • D06C3/062—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus acting on the selvedges of the material only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/20—Advancing webs by web-penetrating means, e.g. pins
    • 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
    • B65H23/0253—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with axially movable elements

Definitions

  • the invention relates to a spreader unit the corresponding to the preamble of claim 1 Art.
  • a generic spreader unit is from the DE-PS 480 155 known.
  • the web runs on two in the Material plane inclined needle disks in the area by making a smaller one on its needled edge have an axial distance around the needle disks by about 240 °, the edges of the needle disks axially apart remove and spreading the to the Edges of the web packed with the needles, and leaves it at an angle offset by approximately 90 ° to the inlet plane Level again.
  • the needle disks are in hers Angular position and crosswise adjustable and common driven.
  • the invention has for its object a generic To further develop the spreader unit that the spread achieved still over a certain Maintain the path of the web becomes.
  • a special application of such a spreader unit is a mercerising plant in which the spreader unit to the diffusion path, which the Order of the mercerizing fleet follows, then.
  • the Goods web has a strong tendency in this area Shrink in the transverse and longitudinal directions and is caused by that second needle washer prevented.
  • a so-called palm slice arrangement in which the web at its edges over slanted panes runs and is held in the transverse direction, so that they increase the distance when the discs rotate must participate, is the subject of DE-PS 610 937.
  • the web goes to an immediately downstream one Aggregate in the form of a calender roll over which it is held flat in bound goods management.
  • the transition is not without the task of bound goods management and not in such a way that the The web is then only gripped at the edge and in the transverse direction is held.
  • the degree of spreading is used in the invention by pivoting the two needle disks of the first Needle disk unit set.
  • the support drum between the needle disks is useful in length, i.e. across the web, adjustable, to adapt to the set position of the To be able to adjust needle disks (claim 10), which in particular by the construction specified in claim 11 can be realized in which the support drum in the simplest Case consists of two interlocking parts, but also more than two appropriately designed may include axially interlocking parts.
  • the preferred arrangement of the two needle disk units is the stacked arrangement according to claim 12.
  • This has a number of advantages. For example, it allows to install a control station according to claim 13, the entry of the web onto the first needle disc unit allowed to observe. It is too casually possible, according to claim 14 during and after the spreading a treatment liquid relinquish the material path encircling the needle disk units, whereby this is in a broad position with the Treatment liquid can be provided. So for Example of mercerization on the needle disk units rinsing of the mercerizing liquor is started, which has the consequence that the web has its tendency to Shrinkage loses before it is released. On this way the essential first phase of stabilization of the lye-provided web, without Loss of width due to material web released too early to fear. It is understood that the stacking also with regard to a small footprint is an advantage.
  • Edge spreaders must be provided to ensure that the Material web in perfect broad position on the needles (Claim 15).
  • a needle punch provided that the edges of the web radially from the outside positive into the needles of the second needle disc unit presses.
  • Such a needle device can be used in the preferred Embodiment of claim 17 with circumferential grooves provided for the passage of the needles on the Edge of the web or the circumference of the respective needle disks unrolling roll that comprise the web next to the needles on the edge of the needle washers.
  • a needling device can also be circulating Brushing, suitably shaped pressure rails or a nozzle system Find what air or liquid Medium radially from the outside to the edge of the web Guides the area of the needles and presses the edge onto the needles.
  • the role according to claim 19 have a radially projecting collar, with which they resiliently axially from the outside against the edge the respective needle disk is pressed.
  • roller opposite the edge of the needle plate always exactly positioned so that the needles always run cleanly through the circumferential grooves of the roller.
  • Another embodiment relates to the emergence of the onto the first web of material running towards the first needle disc unit from the last guide roller in cases where this with its upper vertex is approximately at the same height as the top vertex of the first needle disk unit and in which the web is bound to the last guide roller is led.
  • this with its upper vertex is approximately at the same height as the top vertex of the first needle disk unit and in which the web is bound to the last guide roller is led.
  • a free goods route is inevitable one that can be very undesirable.
  • The is used to prevent this free goods route Configuration according to claim 20, the effect of which is the bound web guide until it runs up to hold out completely on the first needle disc unit.
  • the needle roller takes the web tangentially from the second needle disk unit and is under their weight and the web train on the first follower roller, being in the vertical direction in the guide is freely movable.
  • the spreading of the material web can take place after a Another embodiment of the spreader unit according to the invention be automated according to claim 24 by the swivel drives for the first needle disc unit, who experience the cross tension of the web, about Force transducers are connected, the signals of which one Control device can be entered via a drive motor the width adjustment of the second needle disc unit and thus also the first needle disk unit controls.
  • control device can Control device can be assigned to the width setting of the second needle disk unit controls so that the Tension of the web between a minimum and a maximum value, i.e. remains in a target range.
  • the web must not be slack in the transverse direction if the spreader aggregate make sense should. On the other hand, it may also be in the transverse direction not be stretched so much that destruction in particular occur at the edges of the web.
  • the one The maximum tension endured on a certain web is off Try known. The scheme is so that the Material web when passing through the spreader unit predetermined transverse tension is exposed and on this way the structure changes.
  • the spreader unit designated 100 as a whole in FIG. 1 is in the illustrated embodiment Part of a mercerising system. This includes an upstream part of the system in the form of a diffusion compartment 1, which run through the web 4 after the mercerizing liquor has been applied. In the diffusion compartment 1, the mercerizing liquor 1 has the opportunity diffuse completely into the web 4.
  • rollers and needle disks mentioned have one another parallel, in the width direction of the web 4 Axes.
  • a longitudinal stretching field closes the diffusion compartment 1 2, in which the web 4 in bound goods management from the height of the diffusion compartment 1, that is to say approximately half Man height, transferred to a greater height of about 2 m becomes.
  • the longitudinal stretching field 2 comprises fixed guide rollers 7, guide rollers 8 and 8 'mounted in tensile force transducers 8 ", pendulum-mounted guide rollers 9 and a driven one Pull roller 10. It is about the drive of the pull roller 10 possible in the web 4 before spreading To stretch in the longitudinal direction and thereby in the web 4 longitudinal tension occurring through the upstream roller 8 to be checked with the tensile force transducers 8 '.
  • the two Guide rolls 8.8 " are not in contact with their neighboring rolls, but can be slightly under the train of web 4 shift to the measurement in the tensile force transducers 8 'to enable.
  • the sequence of rolls 8.7.9.7.9.9.10.8 ", which comprises the longitudinal stretching field 2 extends to above, i.e. the later rolls of the series lie with theirs Axes getting higher, so that a height difference is overcome can be.
  • the web 4 runs approximately horizontally from the Longitudinal stretching field 2 into the spreading unit 100 on.
  • the web 4 runs in the area of the upper vertex upper needle disk unit 20, circles around this about 180 °, goes to the lower needle disc unit at point 3 40 over, circles this by about 270 ° and leaves the lower needle plate assembly 40 at the point 14, where it is guided out of the needles 30 by a guide roller 21 and by means of a further guide roller 23 the subsequent one Machine part, in the exemplary embodiment Stabilizing section 22 of the mercerizing machine becomes.
  • FIG 2 shows the structure of the two needle disk units 20 and 40 more shown in detail.
  • Embodiment includes upper needle plate assembly 20 two along the edges 4 'of a web 4 a first axis 27 arranged to this essentially vertical first needle disks 26.28 of about 800 mm Diameter that is close together on its circumference Radial needles 30 bear about 10 to 15 mm radially protrude freely, insert into the edges 4 'of the web 4 and hold it in the axial direction.
  • the first needle disks 26,28 are rotatable about axes of rotation 35,37 in essentially opposed shaft journal 32,34 stored at the respective upper end of essentially upright pivot members 36, 38 are attached, which are pivotable about a pivot axis 15, which to the through the axes 27 of the upper needle disk unit 20 and 47 of the lower needle plate assembly 40 going
  • the plane is perpendicular and tangential to the first needle disks 26 or 28 runs.
  • swivel drive 13 which as a linear drive, e.g. as a spindle or piston / cylinder unit, is trained and ends at one point of attack 31 on the outside of the swivel links 36, 38 attacks in the area of the axes 35.37.
  • the pivot axis 15 is through a bearing a to be assigned to the lower needle disk unit 40 Pair of substantially upright support members 56,58 educated.
  • the support members 56,58 are in the view of Fig. 2 designed approximately T-shaped and have one to the axis 47 of the lower needle disk assembly 40 approximately parallel Crossbars 56 'and 58' on the facing one another inner free ends of the bearing points with the swivel axes 15 and at the outer free ends of the other Point of engagement 31 ′ for the respective swivel drive 13 is arranged.
  • the swivel drive 13 is therefore in each case arranged outside of the pivot member 36 and 38 and in able to pivot this in the direction of the arrow, whereby the inclination of the first needle disks 26, 28 can be changed is.
  • the webs 56 ", 58" of the support members 56, 58 are welded below with a hub 42,44 each is arranged on a shaft 41 with the axis 47.
  • the Shaft 41 is supported in bearing blocks 43
  • the hubs 42, 44 second needle disks 46,48 of the second needle disk assembly 40 rotatably mounted in the embodiment about 1000 mm in diameter. They are in Axis positioned so that its outer edge with the Needles 30 located in the same transverse plane of the axis 47 is like the swivel axis 15. In the area of the swivel axis 15 are the circumferences of needles 30 occupied with each other first and second needle disks 26 and 46 or 28 and 48 immediately with a small, the needle length only a little exceeding distance 55 (FIG. 3). This situation does not change when the first needle disks 26,28 be changed in their inclination.
  • the hubs 42, 44 and with them the second needle disks 46,48 are in the direction of arrows 77 along the shaft 41 slidable to adjust the axial position of the Bring the second needle disks 46,48 to the width of the web to be able to. Go at such a shift the support members 56.58 and 36.38 with and shift together with these. Even if the second needle disks 46,48 thus remain the mutual Position of the first and second needle disks 26 and 46 or 28 and 48 obtained in the region of the pivot axes 15.
  • the pivot member 36 and the support member 56 on the one hand and the pivot member 38 and the support member 58 on the other hand each form a closed assembly axially adjustable carrier 50, each carries both needle washers on one side and this one an adjustment while maintaining their same axial Position or their direct counterpart in Area of the swivel axis.
  • the support drums 29.49 consist in the Embodiment each from two identical cylindrical Halves 29 ', 29 “or 49', 49", the diameter of which Diameter of the assigned first or second Needle disks 26.28 and 46.48 is the same.
  • the halves 29 ', 29 “and 49', 49” are coaxial on axes 27 and 47, respectively arranged and circulate with the needle disks.
  • To the sides facing each other are the halves 29 ', 29 "in axially parallel narrow, evenly distributed over the circumference finger-like segments 51 divided between themselves axially parallel recesses 52 of a width Segments 51 divided somewhat greater width, so that the mutually facing ends of the segments 29 ', 29 "in the From Fig.
  • the first Needle disks 26, 46 have axially projecting edges Frets 53.54 of rectangular cross-section that define the peripheral edges 26 'or 46' of the first needle disks 26 or 46 form.
  • a peripheral groove 68 of the peripheral edge 46 ' is a pinstrip 39 filling these with the needles 30 arranged.
  • the needles 30 are each in two to the axis of the respective first needle plate 26,46 perpendicular to each other adjacent levels provided. At the narrowest point leave the peripheral surfaces 26 ', 46' the one already mentioned Distance 55 from each other.
  • the first and second needle disks 26,46 and 28,48 are coupled circumferentially by the web and therefore run by themselves at the same, the web speed corresponding peripheral speed.
  • a drive of the first and second needle disks 26, 46; 28.48 is not necessary because it is just like the support drums 29.49 can be taken from the web 4.
  • FIG. 4 is a side view of the spreader unit 100 reproduced in a concrete embodiment.
  • a handwheel 57 is rotatable on the axis 47 by means of which is the adjustment of the carriers 50 along the shaft 41 in the direction of the arrow.
  • the support member 56 has a cross member 59 at the upper end which attacks a frame-fixed guide 60, the one Tilting of the carrier 50 around the shaft 41 prevented.
  • That too Swivel member 38 has a cross member 61 at the lower end, which runs parallel above the cross member 59 and on this is pivotable about the pivot axis 15.
  • Also at the upper end of the pivot member 36 is a cross member 62 arranged on which on the one hand the edge spreader 5 and the pressure roller 6 and the sensor 12 attached are, as can be seen from Fig. 5 in detail.
  • FIG. 6 is a view from that opposite FIG. 4 Page reproduced in perspective.
  • the Reference numbers are the same. It can be seen that this lower cross member 61 of the pivot member 38 down extending bearing flanges 63 which on the in Area of the cross member 59 of the support member 58 extending Pivot axis 15 are pivotable.
  • Needle device 90 assigned to the edge of the web arranged on a support 91 which is connected to the support member 56 is firmly connected and its movements in the transverse direction the goods direction.
  • the pivot axis 92 is in the circumferential direction of the needle disk 46 by a distance outside of the axes of the first Needle disks 26,46 connecting middle plane M just above the needle plate 46 is arranged.
  • the second leg 93 "of the angle lever 93 points against the gap between the first needle disks 26,46 and carries one at the free end Roller 96, which about a to the axis of the needle plate 46 or of the needle disk unit 40 parallel axis freely rotatable and rolls on the edge 46 'of the needle disk 46, the roller 96 by the action of the spring 94 on the Edge 46 'is pressed.
  • the edge 46 ' are the pinstripes 39 with the radially protruding and in two to Axis of the needle plate 46 arranged vertical planes Needles 30 inserted.
  • the role 96 is in the area of Width of the rim 46 'substantially cylindrical and has two circumferential grooves 97 at the location of the needles 30 on, the needles 30 in the apparent from Fig. 9 All the way.
  • the roller 96 is pressed onto the edge 46 ', the edge 4 ′ of the web 4 located therebetween pressed onto the needles 30 and thus needled securely becomes.
  • the roller 96 has one in its cylindrical part relatively small diameter of about 60 mm and is in Circumferential direction as close as possible to the gap between the first needle disks 26,28 so that the Distance of complete needling from the transition point 3 is as low as possible.
  • the roller 96 has at its axially outer end a circumferential collar 98 with one to the axis of the roller 96 of the federal 98 against the outer end face 46 "of the edge 46 'of the needle plate 46 pressed, making the correct mutual position of the needles 30 and the circumferential grooves 97 is guaranteed.
  • a deflection roller 72 is shown, the in the area of the inlet of the web 4 on the first Needle disk unit is arranged and serves the visible in Fig. 1 and indicated in Fig. 10 with 4 " to avoid free running path of the web 4. Until top of the last guide roller 8 "runs the web in bound or essentially bound leadership.
  • the storage of the deflection roller 72 at the end of the handlebar 73 is designed a bit resilient so that the Deflection roller 72 their correct position of even contact look at the guide roller 8 "and the support drum 29 itself can. This is due to the fork-like design of the end the handlebar 73 may be indicated schematically in FIG. 10.
  • the deflection roller 72 and the last guide roller 8 "about the same Diameter, while the support drum 29 about three times Has diameter.
  • the guide 65 adjusted horizontally in the direction of arrow 67 become.
  • this adjustment is self-locking, i.e. the Needle roller 78 cannot move horizontally by itself relocate.
  • the needle point 14 is in the embodiment shown slightly above the axis of the second needle disk unit 40.
  • the needle roller 78 has one Diameter, which is essentially the diameter of the rollers 8 "and 72.
  • the needle roller 78 is through suitable displacement of the guide 65 in the direction of the arrow 67 positioned so that the needles of the second needle plate assembly 40 just not touched.
  • Fig. 11 is one way of automation of the operation of the spreader unit 100 indicated. It a control and regulating device 80 is provided.
  • the Experience swivel drives 13 of the first needle disk unit the transverse tension of the web. They are attacking the respective legs 56 ', 58' of the support members 56, 58 via force measuring elements 81, whose signals via lines 82 of the control and regulating device 80 are supplied.
  • the width setting of the second needle disc unit 40 and thus also the first needle disk unit 20 is carried out by a motor 85 which is controlled by the control and control device controlled via a line 86 becomes.
  • To record the actual value of the width setting of the second needle disk unit 40 can be a measuring device 83 are provided, the signal via a line 84 also the control and regulating device 80 is feedable.
  • the regulation can be done so that the transverse tensile stress is set to a certain value between a minimum value and a maximum value that due to the tensile strength of the web in the transverse direction determined and previously determined experimentally. Such a thing treated web therefore always has the same transverse tensile stress and the accompanying structural change Experienced.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (29)

  1. Dispositif pour étirer en largeur des bandes de produit textile, comportant une première unité à disque garnie d'aiguilles (20) comprenant deux premiers disques à aiguilles (26, 28) montés le long d'un premier axe (27), à une distance correspondant à la largeur de la bande de produit (4), et ayant des aiguilles (30) réparties à la périphérie, dirigées radialement vers l'extérieur pour s'enficher dans les bords (4') de la bande de produit (4),
    une première installation (13, 50) pour basculer les axes de rotation (35, 37) des premiers disques à aiguilles (26, 28) dans un plan de basculement passant par l'axe, et
    une installation pour enfiler les bords de la bande de produit (4) sur les aiguilles (30) des disques à aiguilles (26, 28), dans la zone de l'écartement axial le plus faible des bords des premiers disques à aiguilles (26, 28),
    caractérisé en ce qu'
    une seconde unité de disques à aiguilles (40) comprenant un second axe (47) parallèle au premier axe (27) et situé dans le plan de basculement, autour duquel tournent deux seconds disques à aiguilles (46, 48) perpendiculaires à l'axe (47) et ayant la même vitesse périphérique que les premiers disques à aiguilles (26, 28), est associée à la première unité de disques (20)
    la distance axiale des seconds disques à aiguilles (46, 48) est égale à la distance axiale des premiers disques à aiguilles (26, 28), prise dans la zone de leur plus grand écartement, et
    les bords du premier et second disque à aiguilles (26, 46 ; 28, 48), se touchent presque dans la zone de la distance agrandie, pour permettre de réaliser un transfert de la bande (4) du premier disque à aiguilles (26, 28) sur le second disque à aiguilles (46, 48) sans avoir à épingler sur au moins l'un des disques à aiguilles (26 ou 46 ou 28 ou 48).
  2. Dispositif d'étirage en largeur selon la revendication 1,
    caractérisé en ce que
    les disques à aiguilles (26, 46 ou 28, 48), situés chaque fois à un bord (4') de la bande (4) des deux unités de disques à aiguilles (20, 40), sont réglables en commun par rapport au disque à aiguille (28, 48 ou 26, 46) pour l'autre bord (4'), dans la direction en largeur de la bande (4).
  3. Dispositif d'étirage en largeur selon la revendication 1,
    caractérisé en ce que
    les disques à aiguilles (26, 46 ou 28, 48), situés chaque fois à un bord (4') de la bande (4) des deux unités de disques à aiguilles (20, 40), ont un support (50) commun monté sur le second axe (47) et les supports (50, 50), opposés sur le second axe (47), sont réglables l'un par rapport à l'autre.
  4. Dispositif d'étirage en largeur selon la revendication 3,
    caractérisé en ce que
    chaque support (50) comprend un organe de support (56, 58) fixe angulairement par rapport au second axe (47) et un second organe de support (36, 38) pour les axes de rotation (35, 37) des disques à aiguilles (26, 28) de la première unité de disques à aiguilles (20), qui peut pivoter sur le premier organe de support (56, 58) à l'aide d'un entraínement de pivotement (13) autour d'un axe de pivotement (15) perpendiculaire au plan de liaison des axes (27, 47) dans un plan perpendiculaire à l'axe (47), et tangent aux disques à aiguilles (26 et 46 ; 28 et 48).
  5. Dispositif d'étirage en largeur selon la revendication 4,
    caractérisé en ce que
    le premier organe de support (56, 58) est coudé et est fixé, par un pied de la branche (56", 58") radiale par rapport au second axe (47), sur un moyeu (42, 44) monté sur le second axe (47) alors que l'autre branche (56', 58'), parallèle à l'axe, porte à son extrémité libre l'axe de pivotement (15).
  6. Dispositif d'étirage en largeur selon la revendication 5,
    caractérisé en ce que
    le premier organe de support (56, 58), vu perpendiculairement au plan de liaison des axes (27, 47), a une forme de T et la branche (56", 58") de cette forme en T est une entretoise alors que la traverse (56', 58'), parallèle à l'axe, porte à son extrémité intérieure libre, l'axe (15) de la branche et à son extrémité extérieure libre, le point d'attaque (31') du moyen d'entraínement en pivotement (13).
  7. Dispositif d'étirage en largeur selon l'une des revendications 4 à 6,
    caractérisé en ce que
    le second organe de support est un organe pivotant (36, 38) monté pivotant par une extrémité sur le premier organe de support (56, 58) autour de l'axe de pivotement (15) et son autre extrémité porte l'axe de rotation (35, 37) pour chaque fois l'un des premiers disques à aiguilles (26, 28).
  8. Dispositif d'étirage en largeur selon l'une des revendications 4 à 7,
    caractérisé en ce que
    l'entraínement en pivotement (13) est un entraínement linéaire qui, vu dans la direction axiale de la première unité de disques à aiguilles (20), se trouve axialement à l'extérieur de l'organe de pivotement (36, 38) et dont l'autre point d'attaque (31) agit à proximité de l'extrémité libre de l'organe de pivotement (36, 38).
  9. Dispositif d'étirage en largeur selon l'une des revendications 1 à 8,
    caractérisé en ce qu'
    entre les disques à aiguilles (26, 28 ; 46, 48) d'au moins une unité de disques à aiguilles (20, 40), il y a un tambour de support (29, 49) pour la bande de produit (4), qui remplit pratiquement complètement l'intervalle dans la direction axiale, et qui a le même diamètre que les disques à aiguilles (26, 28 ou 46, 48) correspondants.
  10. Dispositif d'étirage en largeur selon la revendications 9,
    caractérisé en ce que
    le tambour de support (29, 49) est de longueur réglable.
  11. Dispositif d'étirage en largeur selon la revendications 10,
    caractérisé en ce que
    le tambour de support (29, 49) se compose de chaque fois au moins deux parties cylindriques coaxiales de même diamètre dont la périphérie comporte, sur les côtés tournés l'un vers l'autre, des segments (51) en forme de doigts, en porte-à-faux, qui laissent entre eux, dans la direction périphérique, des intervalles (52) de largeur correspondant à celle des segments, et les segments (51) d'une partie pénètrent dans les intervalles de l'autre partie, des moyens étant prévus pour déplacer axialement les parties (29', 29" ou 49', 49") les unes par rapport aux autres.
  12. Dispositif d'étirage en largeur selon l'une des revendications 1 à 11,
    caractérisé en ce que
    la première unité de disques à aiguilles (20) est montée sur la seconde unité de disques à aiguilles (40) et la bande (4) est guidée pour passer sensiblement horizontalement dans la zone de la ligne de sommet supérieure sur la première unité de disques à aiguilles (20).
  13. Dispositif d'étirage en largeur selon l'une des revendications 1 à 12,
    caractérisé en ce qu'
    au-dessus de la bande (4), qui continue devant la seconde unité à disques à aiguilles (40), du côté opposé à l'entrée de la bande arrivant sur la première unité de disques à aiguilles (20), il est prévu un poste de commande (24) qui s'étend transversalement au dessus de la bande (4).
  14. Dispositif d'étirage en largeur selon l'une des revendications 1 à 13,
    caractérisé en ce que
    dans les zones de l'unité de disques à aiguilles (40) entourées par la bande (4), il est prévu un dispositif applicateur (16) pour appliquer un liquide de traitement sur la bande de produit (4).
  15. Dispositif d'étirage en largeur selon l'une des revendications 1 à 14,
    caractérisé en ce que
    juste avant la sortie de la bande (4) arrivant sur la première unité de disques à aiguilles (20), au niveau des deux bords de la bande (4), il est prévu un élargisseur de bord (5).
  16. Dispositif d'étirage en largeur selon l'une quelconque des revendications 1 à 15,
    caractérisé en ce qu'
    au niveau de chaque bord de la bande (4), dans la direction de circulation de la bande (4), en aval du point de transition (3) de la première unité de disques à aiguilles (20), sur la seconde unité de disques à aiguilles (40), il est prévu une installation de dégagement d'aiguilles (90) qui crée une pression agissant de l'extérieur sur le bord (4') de la bande de produit (4), radialement, pour favoriser la pénétration des aiguilles (30) de la seconde unité d'aiguilles (40) dans le bord (4') de la bande (4).
  17. Dispositif d'étirage en largeur selon la revendications 16,
    caractérisé en ce que
    l'installation de transfert d'aiguilles (90) comprend, à chaque bord (4') de la bande de produit (4), un rouleau (96) pressé élastiquement de l'extérieur contre le bord (4') de la bande de produit (4) ou le bord périphérique (46') du disque à aiguilles respectif (46) de la seconde unité de disques à aiguilles (40), ce rouleau tournant autour d'un axe parallèle à l'axe de la seconde unité de disques à aiguilles (40) et ayant des rainures périphériques (97) pour le passage des aiguilles (30).
  18. Dispositif d'étirage en largeur selon la revendications 17,
    caractérisé en ce que
    le rouleau (96) est monté sur l'organe de support respectif (56, 58).
  19. Dispositif d'étirage en largeur selon l'une des revendications 17 ou 18,
    caractérisé en ce que
    le rouleau (96) présente une collerette (98) en saillie radialement, par laquelle ce rouleau est pressé élastiquement, axialement de l'extérieur contre la face frontale (46") du bord périphérique (46') du disque à aiguilles respectif (46).
  20. Dispositif d'étirage en largeur selon l'une des revendications 12 à 19,
    caractérisé en ce que
    le dernier cylindre de guidage (8"), avant le chargement de la bande (4) sur la première unité à disques à aiguilles (20) et dont le sommet supérieur se trouve sensiblement à la même hauteur que le sommet supérieur de la première unité à disques à aiguilles (20), est suivi par un cylindre de renvoi (72), monté pivotant sur des bras (73) autour d'un axe (24) situé sensiblement au niveau de la moitié supérieure du cylindre de guidage (8"), dont le diamètre est supérieur à la distance libre entre le cylindre de guidage (8") et la première unité à disques à aiguilles (20), et peut être abaissé par basculement à partir d'une position au-dessus de la bande de produit (4") passant du sommet du cylindre de guidage (8") vers le sommet de la première unité à disques à aiguilles (20), dans une position dans laquelle il s'appuie à la fois contre le cylindre de guidage (8") et contre le cylindre de support (29) de la première unité de disques à aiguilles (20), entre les aiguilles (30) de celui-ci, et dans sa zone inférieure, il est en partie entouré par la bande (4).
  21. Dispositif d'étirage en largeur selon la revendications 20,
    caractérisé en ce que
    l'axe du cylindre de renvoi (72) peut être légèrement décalé par rapport aux bras (73).
  22. Dispositif d'étirage en largeur selon l'une des revendications 12 à 21,
    caractérisé en ce qu'
    à la sortie (77) de la bande (4) de la seconde unité de disques à aiguilles (40), il est prévu un cylindre d'aiguilles de sortie (78) dont le diamètre est supérieur à la distance libre entre la seconde unité de disques à aiguilles (40) par rapport au premier cylindre suiveur (79) en étant guidé de manière libre en mouvement sur un moyen de guidage vertical (65) pour s'appuyer sur le cylindre suiveur (79) et que les aiguilles (30) de la seconde unité de disques à aiguilles (40) ne soient plus touchées.
  23. Dispositif d'étirage en largeur selon la revendication 22,
    caractérisé en ce que
    le moyen de guidage (65) est réglable dans la direction horizontale (67).
  24. Dispositif d'étirage en largeur selon l'une des revendications 4 à 23,
    caractérisé en ce que
    l'entraínement en pivotement (13) est raccordé par des capteurs de force (81) dont les signaux peuvent être fournis à une installation de commande et de régulation (80) qui commande le réglage en largeur de la seconde unité de disques à aiguilles (40) par l'intermédiaire d'un moteur (85).
  25. Dispositif d'étirage en largeur selon la revendication 24,
    caractérisé par
    une installation de mesure (83) de la valeur réelle de la largeur réglée de la seconde unité de disques à aiguilles (40) et les signaux de cette unité sont appliqués à l'installation de commande et de réglage (80).
  26. Dispositif d'étirage en largeur selon l'une des revendications 24 ou 25,
    caractérisé en ce que
    l'installation de commande et de réglage (80) règle la largeur de la seconde unité de disques à aiguilles (40) pour que la tension transversale dans la bande de produit (4) reste entre une valeur minimale et une valeur maximale.
  27. Dispositif d'étirage en largeur selon l'une des revendications 24 à 26,
    caractérisé en ce qu'
    en cas de chute brusque de la tension transversale dans la bande de produit (4), en cas de rupture ou de sortie des bords de la bande (4') des aiguilles, la seconde unité de disques à aiguilles (40) n'est plus autorisée à s'élargir de manière incontrôlée.
  28. Dispositif d'étirage en largeur selon l'une des revendications 1 à 27,
    caractérisé par
    une combinaison comprenant un champ d'allongement.
  29. Dispositif d'étirage en largeur selon la revendication 28,
    caractérisé en ce que
    le champ d'allongement (2) est en amont de l'unité d'étirage en largeur (100).
EP96905734A 1995-06-03 1996-03-09 Systeme d'etirage en largeur Expired - Lifetime EP0830472B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19520513 1995-06-03
DE19520513A DE19520513C1 (de) 1995-06-03 1995-06-03 Breitstreckaggregat
PCT/DE1996/000462 WO1996039554A1 (fr) 1995-06-03 1996-03-09 Systeme d'etirage en largeur

Publications (2)

Publication Number Publication Date
EP0830472A1 EP0830472A1 (fr) 1998-03-25
EP0830472B1 true EP0830472B1 (fr) 1999-08-25

Family

ID=7763672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905734A Expired - Lifetime EP0830472B1 (fr) 1995-06-03 1996-03-09 Systeme d'etirage en largeur

Country Status (5)

Country Link
US (1) US5819382A (fr)
EP (1) EP0830472B1 (fr)
JP (1) JP2977615B2 (fr)
DE (2) DE19520513C1 (fr)
WO (1) WO1996039554A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3942238A1 (fr) * 2017-10-11 2022-01-26 Andritz Küsters GmbH Dispositif et procédé pour étirer un produit en forme de bande en mouvement transversalement au sens de mouvement

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* Cited by examiner, † Cited by third party
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DE19802521C1 (de) * 1998-01-26 1999-02-18 Kuesters Zittauer Maschf Gmbh Breitstreckaggregat für textile Warenbahnen
EP1240008B1 (fr) 1999-12-01 2005-09-14 PIRELLI PNEUMATICI S.p.A. Installation permettant de fabriquer simultanement des pneumatiques de differents types
US6623679B2 (en) * 2000-12-29 2003-09-23 Eastman Kodak Company Method of controlling width of polyester film support
US20020132196A1 (en) * 2000-12-29 2002-09-19 Eastman Kodak Company Method of controlling width of polyester film support
JP5999840B2 (ja) * 2012-09-12 2016-09-28 株式会社瑞光 弾性伸縮シートの拡幅装置
US9714479B2 (en) 2014-06-04 2017-07-25 Teresa Catallo Heat setter for delicate and/or sensitive knit fabrics
CN114214801B (zh) * 2021-11-02 2024-04-05 佛山市南海区新元机械有限公司 一种碱缩机
CN114180374A (zh) * 2021-12-01 2022-03-15 泉州迈特富纺织科技有限公司 一种连续式潜水衣布料及其制造方法

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US88505A (en) * 1869-03-30 Improvement in machine for stretching fabrics
US148082A (en) * 1874-03-03 Improvement in apparatus for stretching cloth
DE480155C (de) * 1927-09-06 1929-07-29 Mathias Lenders Vorrichtung zum Breitspannen von Geweben
DE610937C (de) * 1933-08-02 1935-03-19 Joseph Monforts Breitstreckvorrichtung bei Filzkalandern (Palmer)
JPS591763A (ja) * 1982-06-19 1984-01-07 株式会社川上製作所 延反機
US5042121A (en) * 1987-10-13 1991-08-27 Young Engineering, Inc. Method and apparatus for decurling and tentering fabric
EP0472393B1 (fr) * 1990-08-23 1996-12-11 Nippon Petrochemicals Company, Limited Machine d'étirage
DE4141779A1 (de) * 1991-12-18 1993-06-24 Krantz H Gmbh & Co Vorrichtung zum egalisieren einer warenbahn
US5373613A (en) * 1992-10-23 1994-12-20 Young Engineering, Inc. Tenter frame with pinned roll transfer means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3942238A1 (fr) * 2017-10-11 2022-01-26 Andritz Küsters GmbH Dispositif et procédé pour étirer un produit en forme de bande en mouvement transversalement au sens de mouvement

Also Published As

Publication number Publication date
US5819382A (en) 1998-10-13
DE19520513C1 (de) 1996-07-25
WO1996039554A1 (fr) 1996-12-12
JP2977615B2 (ja) 1999-11-15
JPH10506443A (ja) 1998-06-23
DE59602888D1 (en) 1999-09-30
EP0830472A1 (fr) 1998-03-25

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