EP0517563B1 - Vliesbandleger - Google Patents

Vliesbandleger Download PDF

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Publication number
EP0517563B1
EP0517563B1 EP92401411A EP92401411A EP0517563B1 EP 0517563 B1 EP0517563 B1 EP 0517563B1 EP 92401411 A EP92401411 A EP 92401411A EP 92401411 A EP92401411 A EP 92401411A EP 0517563 B1 EP0517563 B1 EP 0517563B1
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EP
European Patent Office
Prior art keywords
carriage
pinching
rollers
web
roller
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EP92401411A
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English (en)
French (fr)
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EP0517563B2 (de
EP0517563A1 (de
Inventor
Robert Jean
Bernard Chatelet
Bernard Jourde
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Asselin SA
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Asselin SA
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above

Definitions

  • the present invention relates to a lapper spreader for transforming by folding a web into a web.
  • FR - B - 2 553 102 such a machine in which a veil, coming from a carding machine, is first transported by a first mat, called front mat, to a pinch zone where it is held between the first and a second mat and transported to an exit cart.
  • the back-and-forth movement of the exit carriage above a receiving apron causes a deposition of the veil which it delivers, by alternating folds, in accordion, on the apron.
  • the apron moves in a direct.ion parallel to the axes of the guide rollers carried by the output carriage, the successive folds are offset along this direction and the web forms on the apron a continuous sheet whose lateral edges are defined by the folds.
  • the start of the pinch zone is defined in mobile position by an input carriage which moves back and forth intended to make the speed of admission of the web into the spreader and the speed of unwinding of the web compatible. by the exit carriage despite the back and forth movements of the latter.
  • the veil which is of fragile constitution is disturbed neither by piling, nor by stretching, nor by friction.
  • the comings and goings of the input carriage is compensated by the opposite comings and goings of the output carriage and vice versa thanks to an appropriate arrangement of the guide rollers (see for example FR - B - 2,553,102).
  • auxiliary carriages are provided which also move back and forth in translation to selectively lengthen or shorten the belts outside of the nip and thus compensate for variations in the length of the nip.
  • the front belt in the area where it is in contact with the web, makes a 180 degree turn around one or more guide rollers carried by the input carriage.
  • the sail undergoes centrifugal acceleration when it makes this 180 degree turn. As a result, it tends to peel off the front mat at the entrance carriage.
  • This tendency is further reinforced when the input carriage, due to its back-and-forth movement, has a displacement speed in the opposite direction to that of the intake speed of the veil upstream.
  • These detachments cause air pockets between the veil and the belts in the curved regions of the transport path.
  • the veil made up of a light assembly of fibers, then risks dispersing, which adversely affects the homogeneity of the sheet formed.
  • detachments can cause jams, obviously undesirable, in the area of the webbing pinch. This drawback is particularly noticeable in the structure according to US-A-1 886 919, where the 180-degree turn is carried out without any external support.
  • the 180-degree turn made by the front belt on the entry carriage is divided in two successive 90 degree turns each made around a respective guide roller, which creates a substantially vertical sail transport section between these two rollers.
  • the second belt known as the rear belt, also has a substantially vertical section, delimited by two superposed guide rollers mounted on the input carriage, and adjacent to the vertical section of the front belt.
  • the nip zone therefore comprises a vertical region defined by the adjacent vertical sections of the front and rear belts. At relatively high speeds, precise and smooth guiding of the web in this vertical region becomes very delicate, in particular because of the vibrations of the belts in their respective vertical sections.
  • One of the aims of the present invention is to solve the above problems by proposing a new spreader-lapper in which the stability of the web transport is improved.
  • the invention thus proposes a spreader-lapper to transform by folding a veil into a tablecloth, comprising two belts each following a closed path and associated with rollers for their respective guidance and drive, the closed paths being external to each other. 'other and adjacent to each other in a nip zone delimited by guide rollers carried by an input carriage and an output carriage movable in translation in a horizontal direction and perpendicular to the axes of the rollers, the rollers guide comprising two pinch rollers each associated with one of the belts and around which the belts define between them a pinch line constituting a start of the pinch zone, means for bringing the web to the entrance of the zone of pinch, a movable apron in a direction parallel to the axes of the rollers and receiving the web as it leaves the nip, and drive means for applying reciprocating translational movements to the input carriage and the output carriage.
  • the spreader-lapper is characterized in that it comprises means for defining for the web on a first of the belts and upstream of the nip line a section inclined towards the nip line, in that the nip roller associated with the first mat causes the first mat to turn at an angle greater than 90 degrees and less than 180 degrees, and in that the nip line is located in an angular position intermediate between the start and the end of this turn.
  • the veil transported to the entry carriage passes first between the two belts clamped by the pinch rollers, the axes of which are preferably located substantially in the same horizontal plane.
  • the rear carpet thus prevents the web from separating from the front carpet. Thanks to the tilt upstream of the pinch zone, the turn to be made is less than 180 degrees. In addition, this turn is in a way divided by the pinch line which, at a certain stage of the turn, positively prevents any detachment of the web relative to the first mat. We are therefore brought back to two elementary turns of fairly small angle, and carried out on a single pinch roller. This can thus have a relatively large radius, which further reduces the centrifugal force. This ensures precise and undisturbed transport of the web in the vicinity of the entry carriage by reducing the probability of the formation of air pockets under the web in the area immediately upstream of the nip.
  • the spreader-lapper shown in perspective in FIG. 1 comprises a first mat 2, said front mat which collects the veil of fibers 4, for example from a card not shown, and transports it into the enclosure 1 where it is transformed by folding into a ply 6 transported by an apron 8 outside the enclosure 1.
  • the apron 8 transports the formed ply 6, for example to a needle not shown.
  • the directions of transport of the web 4 and of the web 6 are respectively indicated in FIG. 1 by the arrows F and K.
  • the interior of the spreader-lapper is shown schematically in the elevation views of FIGS. 2 to 4, taken along a plane Q perpendicular to the direction of transport of the ply 6 by the deck 8.
  • the spreader-lapper Associated with the front mat 2, the spreader-lapper comprises a second mat 5, called the rear mat.
  • the belts 2 and 5, shown in solid lines in FIGS. 2 to 4, have the same width and have their lateral edges in the same planes parallel to the plane of FIGS. 2 to 4.
  • the front carpet 2 follows a closed path consisting of sections 20 to 31 delimited by cylindrical guide rollers 32 to 43.
  • the rear belt 5 follows a closed path consisting of sections 50 to 59 delimited by cylindrical guide rollers 60 to 69.
  • the guide rollers 32 to 43, 60 to 69 are pivotally mounted around respective axes perpendicular to the plane of Figures 2 to 4, that is to say parallel to the direction of movement of the deck 8.
  • the axes of the rollers 32 , 33, 39, 40, 42, 43 and 65, 66, 68, 69 are fixed relative to the chassis 1 of the spreader-lapper.
  • the axes of the rollers 34, 35 and 60, 61, 62, 63 are carried by a first movable main carriage 10, called the entry carriage.
  • the axes of the rollers 36, 37, 38 and 64 are carried by a second movable main carriage 14, called the exit carriage, and those of the rollers 41 and 67 are carried by auxiliary carriages 16, 18.
  • a movable auxiliary carriage 16, 18 For each closed path 20 to 31, 50 to 59 of the belts, a movable auxiliary carriage 16, 18 carries a guide roller 41, 67 around which this closed path makes a 180 degree turn.
  • the two auxiliary carriages 16, 18 have movements which compensate for those of the main carriages 10, 14 in order to keep the length of each of the closed paths 20 to 31, 50 to 59 substantially constant.
  • At least one of the rollers with fixed axis (for example the rollers numbered 39 and 65 respectively) is driven in rotation by known means not shown so as to circulate the belts 2, 5 along their respective closed paths 20 to 31, 50 to 59 according to predetermined kinematic laws.
  • the directions of movement of the belts 2, 5 are indicated respectively by the arrows F2, F5 in FIGS. 2 to 4.
  • the closed paths 20 to 31, 50 to 59 are external to each other and adjacent to each other in a nip in which the sections of moving carpet numbered 23 and 53 in Figures 2 to 5 are located one against the other so as to pinch the web 4 between them.
  • the veil 4 is shown in dotted lines in FIG. 4 but is not represented in FIGS. 2 and 3 to show the superposition of the sections of carpet 23, 53.
  • the main carriages 10, 14 are located above the deck 8 and are movable in alternating translation in a horizontal direction and perpendicular to the axes of the rollers 32 to 43, 60 to 69.
  • the input carriage 10 (see also the more detailed view of FIG. 5) carries two guide rollers 34, 35 for the front belt 2 and situated inside its closed path 20 to 31. Upstream of the carriage input 10, the front belt 2 carrying the veil 4 follows the substantially horizontal section 21 coming from the front side 7. When arriving on the input carriage 10, the front belt 2 describes a first turn around the following return roller 34 an angle A of between 0 and 90 degrees oriented downwards to form the inclined section 22, then a second turn around the roller 35 at an angle B between 90 and 180 degrees to form the horizontal section 23 of the nip, directed towards the front side 7 of the spreader-lapper.
  • the total angular deviation A + B of the front belt 2 around the guide rollers 34, 35 carried by the input carriage 10 is equal to 180 degrees.
  • the input carriage 10 further carries four guide rollers 60, 61, 62, 63 relating to the rear belt 5, the rollers 60, 61, and 63 being internal to its closed path 50 to 59 and the roller 62, moreover large radius, called detour roller, being outside this closed path 50 to 59.
  • the rear belt 5, which does not carry the veil 4 follows the substantially horizontal section 59 coming from the side rear 9.
  • the rear belt 5 describes a first turn around the deflection roller 60 at an angle C between 0 and 90 degrees, oriented downwards to enter the section 50, then a second turn 180 degrees around the roller 61 to enter the section 51, then a third turn around the detour roller 62 at a negative angle (because the detour roller 62 is outside the closed path 50 to 59) greater than 180 degrees, and finally a fourth turn around the r ouleau 63 to enter the horizontal section 53 of the nip, directed towards the front side 7 of the spreader-lapper.
  • the total angular deviation of the rear belt 5 around the guide rollers 60, 61, 62, 63 carried by the input carriage 10 is zero.
  • the input carriage 10 comprises two sides 11 located on either side of the rollers 34, 35, 60, 61, 62, 63 which it carries. These rollers 34, 35, 60, 61, 62, 63 have their respective axes fixed at their ends on the sides 11. On their face opposite to the rollers 34, 35, 60, 61, 62, 63, the sides 11 of the carriage d input 10 carry wheels 13 pivoting about a horizontal axis and placed on a horizontal lateral ramp 12 secured to the chassis 1 of the spreader-lapper, so as to guide the input carriage 10 in its translational movement. A similar structure, visible in Figure 8, is provided to guide the output carriage 14 in its translational movement.
  • the two belts 2, 5 pass between two delivery nip rollers 38, 64 carried by the output carriage 14 (see FIGS. 2 to 4 and 8).
  • These two supply rollers 38, 64 have their respective axes in the same horizontal plane located above the deck 8.
  • the rear belt 5 makes a 180 degree turn to pass from the horizontal section 53 belonging to the nip zone to a horizontal section 54 extending immediately above the deck 8.
  • This horizontal section 54 passes under the input carriage 10 to join a guide roller with fixed axis 65 located on the rear side 9 of the spreader -capper.
  • the output carriage 14 carries two guide rollers 36, 37 (FIG. 8) relating to the front belt 2.
  • the front belt 2 describes a first turn around the deflection roller 36 at an angle between 0 and 30 degrees oriented upward to enter the section 24, then a second turn around the detour roller 37, located outside of its closed path 20 to 31, at a negative angle greater than 180 degrees to enter the horizontal section 25, and finally a third 180-degree turn around the pinch roller 38 to enter the horizontal section 26 extending immediately above the deck 8 to join a guide roller with fixed axis 39 located on the front side 7 of the spreader-lapper.
  • the total deflection of the front belt 2 around the guide rollers 36, 37, 38 carried by the output carriage 14 is zero.
  • the auxiliary carriages 16, 18 are movable in translation in a horizontal direction and perpendicular to the axes of the rollers 32 to 43, 60 to 69.
  • the auxiliary carriages 16, 18 are located in a lower passage 70 extending under the deck 8, to distance from the zones where the veil 4 and the formed ply 6 pass.
  • the lower passage 70 is separated from the deck 8 by a horizontal partition 72.
  • the auxiliary carriage 16 is provided to keep constant the length of the closed path 20 to 31 followed by the front belt 2. It carries a guide roller 41 around which the front belt 2 makes a 180 degree turn.
  • the front belt 2 is guided between the main carriages 10, 14 and the auxiliary carriage 16 by guide rollers with fixed axis 32, 33, 39, 40, 42, 43 located on the front side 7 of the spreader-lapper.
  • the auxiliary carriage 18 is provided to keep constant the length of the closed path 50 to 59 followed by the rear belt 5. It carries a guide roller 67 around which the rear belt 5 makes a 180 degree turn.
  • the rear belt 5 is guided between the main carriages 10, 14 and the auxiliary carriage 18 by guide rollers with fixed axis 65, 66, 68, 69 located on the rear side 9 of the spreader-lapper.
  • Each auxiliary carriage 16, 18 comprises two sides 74, 78 located on either side of the roller 41, 67 which it carries (see FIGS. 6 and 7).
  • Each of these rollers 41, 67 has its axis carried at its ends on the flanks 74, 78 of the respective auxiliary carriage 16, 18.
  • the flanks 74, 78 carry pivoting wheels 75, 79 around a horizontal axis and which roll on horizontal lateral rails 76, 80 integral with the chassis 1 of the spreader-lapper so as to guide the auxiliary carriages 16, 18 in their translational movements.
  • the side rails 76, 80 extend inside the lower passage 70 on either side of the rollers 41, 67. As can be seen in the partial view of FIG.
  • the lower rails 76 support the auxiliary carriage 16 guiding the front belt 2 and the upper rails 80 support the auxiliary carriage 18 guiding the rear belt 5.
  • the wheels 79 of the carriage 18 placed on the upper rails 80 extend from the side angles 82 integral with the chassis 1 and forming a support for the partition 72 which delimits the upper part of the passage 70.
  • the spreader-lapper comprises driving pinions 85, 89 driven in rotation by means not shown and meshing respectively on toothed belts 84, 88 represented symbolically in dashes in the figures 2 to 4.
  • Two toothed belts 84 extend on either side of the rollers and belts between the input carriage 10 and the auxiliary carriage 16, passing from the rear side 9 of the spreader-lapper. Between the carriages 10 and 16 to which they are fixed by their ends, the toothed belts 84 each bypass two return pinions 85, 86 (including the motor pinion 85) pivoting respectively around a fixed axis parallel to the axes of the rollers 32 to 43, 60 to 69.
  • the pinions 85, 86 are arranged so that the end sections of the toothed belts 84 are parallel to the direction of translation of the carriages 10, 16 to which they are respectively fixed.
  • two toothed belts 88 extend on either side of the rollers and belts between the output carriage 14 and the auxiliary carriage 18, passing on the front side 7 of the spreader-lapper. Between the carriages 14 and 18 to which they are fixed by their ends, the toothed belts 88 each bypass two return pinions 89, 90 (including the motor pinion 89) pivoting respectively around a fixed axis parallel to the axes of the rollers 32 to 43 , 60 to 69.
  • the pinions 89, 90 are arranged so that the end sections of the toothed belts 88 are parallel to the direction of translation of the carriages 14, 18 to which they are respectively fixed.
  • main carriages 10, 14 and auxiliary carriages 16, 18 are coupled in pairs 10, 16 and 14, 18 by means of cables 92, 96 shown symbolically in phantom in Figures 2 to 4. These cables 92, 96 are less expandable as carpet 2, 5.
  • Two cables 92 extend on either side of the rollers and belts between the input carriage 10 and its associated auxiliary carriage 16, passing on the front side 7 of the spreader-lapper. Between the carriages 10 and 16 to which they are fixed by their ends, the cables 92 each bypass two return pulleys 93, 94 pivoting respectively around a fixed axis parallel to the axes of the rollers 32 to 43, 60 to 69.
  • the pulleys 93 , 94 are arranged so that the end sections of the cables 92 are parallel to the direction of translation of the carriages 10, 16 to which they are respectively fixed.
  • Two cables 96 extend on either side of the rollers and belts between the output carriage 14 and its associated auxiliary carriage 18, passing from the rear side 9 of the spreader-lapper. Between the carriages 14 and 18 to which they are fixed by their ends, the cables 96 each bypass two return pulleys 97, 98 pivoting respectively around a fixed axis parallel to the axes of the rollers 32 to 43, 60 to 69.
  • the pulleys 97 , 98 are arranged so that the end sections of the cables 96 are parallel to the direction of translation of the carriages 14, 18 to which they are respectively fixed.
  • the driving of the belts 2, 5 is controlled by means of the driving rollers 39, 65 and that of the carriages 10, 14, 16, 18 by means of the driving pinions 85, 89 meshing on the toothed belts 84 , 88. It thus drives the carriages 10, 14, 16, 18 of synchronous translation movements back and forth.
  • the kinematic laws to be applied to the main carriages 10, 14 can for example be those taught by FR-B- 2 234 395.
  • FIGS. 2 and 3 The extreme positions of the reciprocating movements are shown diagrammatically in FIGS. 2 and 3 and an intermediate position in FIG. 4.
  • the outlet carriage 14 and its associated auxiliary carriage 18 follow reciprocating movements of amplitude L carried out with instantaneous speeds having the same values and opposite directions , so that the length of the closed path 50 to 59 relating to the rear belt 5 is kept constant.
  • the input carriage 10 and its associated auxiliary carriage 16 follow back-and-forth movements of amplitude of the order of L / 2 carried out with instantaneous speeds having the same values and opposite directions, so that the length of the closed path 20 to 31 relative to the front belt 2 is kept constant.
  • the driving pinions 85, 89 are driven in the direction indicated by the arrows H in the figure. 3.
  • the toothed belts 84 then pull the auxiliary carriage 16 towards the rear side 9 and the toothed belts 88 pull the output carriage 14 towards the front side 7.
  • a traction force towards the front side 7 is transmitted to the entry carriage 10 via the cable 92 which couples it to the auxiliary carriage 16.
  • a tensile force towards the rear side 9 is transmitted to the auxiliary carriage 18 via the cable 96 which couples it to the outlet carriage 14.
  • the traction forces mentioned, useful for synchronizing the movements of the associated carriages, are advantageously absorbed by the cables 92, 96 because they are less extensible than the belts 2, 5. This provides an important advantage compared to the spreader-lappers of the prior art, in which these tensile forces are mainly absorbed by the belts. As a result, carpets are less stressed and can be lighter in constitution while having improved durability.
  • the light construction of the belts is very advantageous because it reduces the inertia of the machine and facilitates movement in the curved regions of their closed paths, which improves the regularity of the transport of the web 4 in these regions.
  • the veil 4 from the card is placed on the inclined section 20 followed by the front belt 2 (see Figure 4). After deflection on the roller 33, it is transported horizontally on the section 21 to the input carriage 10. On this, the web 4 is first deflected by the roller 34 at the angle A between 0 and 90 degrees. The moderate value of the angle A prevents the veil from being disturbed when it is deflected by the roller 34. After being transported on the inclined section 22 of the front belt 2, the veil 4 bypasses the pinch roller 35. The pinch line defined between the rollers 35, 61 prevents the web 4 from peeling off the front belt under the action of centrifugal force.
  • angle B was too large (180 degrees or more), one could observe, for high rates, undesirable detachments of the web immediately upstream of the pinch roller 35 due to the excessive angular deflection or to a certain sagging of the front belt 2 upstream of the pinch roller 35. If the angle B was too small (90 degrees or less), the web 4 would not be transported reliably on the excessively inclined section 22 preceding the pinch roller 35. The prior clamping of the web 4 between the rollers 35, 61 and the appropriate value of the angle B thus ensure the best stability of the transport of the web, from which results a sheet 6 of optimal quality.
  • the roller 34 deflecting the veil 4 at the angle A before the nip is mounted on the input carriage 10. It will be understood that the roller 34 could have its axis fixed relative to the chassis 1 of the spreader-lapper. In this case, the angles A and B are variable, but the input carriage is lighter and the roller 34 contributes to supporting the belt 2 upstream of the input carriage.
  • the veil 4 After having traversed the nip 23, 53 the veil 4 reaches the outlet carriage 14 which deposits it by alternating folds on the deck 8 to form the ply 6.
  • the formed sheet 6 is, to a certain extent, sheltered from the air currents created by the reciprocating movements of the carriages 10, 14, 16, 18 due to the presence of the sections of carpet 26, 54 located immediately above the deck 8.
  • the presence of the vertical sections 27, 55 adjacent to these sections 26, 54 also contributes to preventing lateral air currents from reaching the level of the sheet formed 6.
  • the air currents caused by their movements remain essentially confined inside the lower passage 70, away from the zones through which the veil 4 and the ply 6. Consequently neither the veil 4 nor the ply 6 are disturbed by these air currents and the homogeneity of the formed ply 6 is improved, in particular when the spreader-lapper operates at high speed.
  • the auxiliary carriages can be located in separate lower passages, it is advantageous, to reduce the space requirement, to provide a single lower passage 70 in which the two auxiliary carriages 16 move. , 18.
  • the auxiliary carriages 16, 18 are placed on rails 76, 80 located at different heights in the lower passage 70, the transmission belts 84, 88 and the coupling cables 92, 96 are also arranged at different heights, and they do not interfere in operation.
  • the lower passage 70 has a length at least equal to 3L / 2, that is to say the sum of the amplitudes of the reciprocating movements of the main carriages 10, 14 (or the auxiliary carriages 16, 18) .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Cereal-Derived Products (AREA)
  • Packages (AREA)

Claims (7)

1. Vliesbandleger zur Umwandlung eines Flors (4) in ein Vliesband (6) durch Umfalten mit zwei Bändern (2, 5), die jedes auf einer geschlossenen Bahn (20 bis 31, 50 bis 59) umlaufen und Rollen (32 bis 43, 60 bis 69) zu ihrer Führung bzw. ihrem Antrieb zugeordnet sind, wobei die geschlossenen Bahnen (20 bis 31, 50 bis 59) außerhalb voneinander und in einer Andruckzone (20, 53) benachbart zueinander angeordnet sind und die Verdichtungszone (20, 35) durch auf einem Eingangswagen (10) und einem Ausgangswagen (14) gelagerte Führungsrollen (35, 61; 38, 64) begrenzt ist, die translatorisch in horizontaler Richtung und senkrecht zu den Achsen der Rollen (32 bis 43, 60 bis 69) bewegbar sind und wobei die Führungsrollen zwei Andruckrollen (35, 61) aufweisen, die jeweils einem Band (2, 5) zugeordnet sind und um die die Bänder (2, 5) herum zwischen sich eine Andrucklinie definieren, die einen Anfang der Verdichtungszone bilden, mit Zuführmittel (20, 21, 22) für den Flor (4) zum Eingang der Verdichtungszone (23, 53), mit einem in einer zur Achse der Rollen (32 bis 43, 60 bis 69) parallelen Richtung bewegbaren Abförderband (8), das den Flor (4) am Ausgang der Verdichtungszone (23, 53) aufnimmt und mit einer Antriebseinrichtung (84, 85, 88, 89) zur Ausübung einer translatorischen Hin- und Herbewegung auf den Eingangswagen (10) und den Ausgangswagen (14), dadurch gekennzeichnet, daß eine Einrichtung (34) auf einem ersten der Bänder (2) und stromaufwärts von der Andrucklinie einen zur Andrucklinie geneigten Abschnitt (22) für den Flor (4) definiert, daß die dem ersten Band zugeordnete Andruckrolle (35) eine Umlenkung des ersten Bandes um einen Winkel (B) von mehr als 90 und weniger als 180 bewirkt und daß die Andrucklinie in einer Winkelposition zwischen dem Beginn und dem Ende der Umlenkung liegt.
2. Vliesbandleger nach Anspruch 1, dadurch gekennzeichnet, daß die auf dem Eingangswagen (10) gelagerten Andruckrollen (35, 61) im wesentlichen in derselben horizontalen Ebene angeordnet sind.
3. Vliesbandleger nach Anspruch 1 oder 2 mit senkrecht zu den Achsen der Rollen (32 bis 43, 60 bis 69) translatorisch bewegbaren Hilfswagen (16, 18), mit denen die Länge jeder der geschlossenen Bahnen (20 bis 31, 50 bis 59) im wesentlichen konstant gehalten wird, dadurch gekennzeichnet, daß die Andruckzone zwischen dem Eingangswagen und dem Ausgangswagen (10, 14) durch einen im wesentlichen horizontalen, rechtwinkligen Abschnitt (23, 53) gebildet ist.
4. Vliesbandleger nach einem der Ansprüche 1 bis 3, in dem der Flor (4) auf einem im wesentlichen horizontalen Abschnitt (21) der ersten geschlossenen Bahn (20 bis 31) stromaufwärts von dem Eingangswagen (10) transportiert wird, dadurch gekennzeichnet, daß das stromabwärts liegende Ende des im wesentlichen horizontalen Abschnitts (21) durch eine auf dem Eingangswagen (10) gelagerte Unterbandrolle (34) definiert ist, um die die erste geschlossene Bahn (20 bis 31) eine Umlenkung um einen Winkel (A) zwischen 0 und 90 aufweist.
5. Vliesbandleger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Eingangswagen (10) ferner eine Umlenkrolle (62) lagert, die außen von der zweiten geschlossenen Bahn (50 bis 59) angeordnet ist und daß die zweite geschlossene Bahn (50 bis 59) nacheinander die in ihrem Innern angeordnete Andruckrolle (61) und die außen angeordnete Umlenkrolle (62) umschlingt und sich dann tangential mit der ersten geschlossenen Bahn (20 bis 31) vereint, um die Andruckzone (23, 53) zu bilden.
6. Vliesbandleger nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Eingangswagen (10) ferner eine Stützrolle (63) lagert, die im Innern der zweiten geschlossenen Bahn (50 bis 59) und unter den beiden Andruckrollen (35, 61) angeordnet ist, um das zweite Band (5) in der Andruckzone (23, 53) zu unterstützen.
7. Vliesbandleger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Einrichtung, die für den Flor (4) den zur Andrucklinie geneigten Abschnitt (22) definiert, eine auf dem Eingangswagen (10) befestigte Rolle (34) umfaßt.
EP92401411A 1991-06-03 1992-05-22 Vliesbandleger Expired - Lifetime EP0517563B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9106634A FR2677045B1 (fr) 1991-06-03 1991-06-03 Etaleur-nappeur.
FR9106634 1991-06-03

Publications (3)

Publication Number Publication Date
EP0517563A1 EP0517563A1 (de) 1992-12-09
EP0517563B1 true EP0517563B1 (de) 1995-10-11
EP0517563B2 EP0517563B2 (de) 2000-09-13

Family

ID=9413371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401411A Expired - Lifetime EP0517563B2 (de) 1991-06-03 1992-05-22 Vliesbandleger

Country Status (8)

Country Link
US (1) US5289617A (de)
EP (1) EP0517563B2 (de)
JP (1) JP3258320B2 (de)
AT (1) ATE129027T1 (de)
DE (2) DE69205335T3 (de)
ES (1) ES2078694T5 (de)
FR (1) FR2677045B1 (de)
WO (1) WO1992021799A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009520A1 (de) 2012-07-13 2014-01-16 Hi Tech Textile Holding Gmbh Vliesleger

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1291420B1 (it) * 1997-02-19 1999-01-11 Vani Olivo Macchina per l'accoppiamento incrociato di veli di fibre cardate non tessute con nastro di deposizione rotante
DE29822461U1 (de) * 1998-12-18 2000-05-18 Autefa Maschinenfab Vliesleger
DE29822460U1 (de) * 1998-12-18 2000-05-18 Autefa Maschinenfab Vliesleger
FR2791364B1 (fr) * 1999-03-23 2001-06-08 Asselin Etaleur-nappeur
FR2821631B1 (fr) * 2001-03-01 2003-09-19 Saint Gobain Vetrotex Procede et dispositif de fabrication d'une plaque composite a renfort fibreux multiaxial
FR2840326B1 (fr) * 2002-05-28 2004-07-30 Asselin Chariot mobile d'entree d'etaleur-nappeur et etaleur-nappeur equipe dudit chariot
DE20211365U1 (de) 2002-07-27 2003-10-09 Autefa Automation Gmbh Vorrichtung zur Faserbehandlung
FR2892110B1 (fr) * 2005-10-19 2009-01-16 Asselin Thibeau Soc Par Action Procede et ensemble pour la formation d'une bande de non-tisse multicouche avec maintien electrostatique de ladite bande de non-tisse
FR2894600B1 (fr) * 2005-12-13 2008-02-29 Asselin Thibeau Soc Par Action Transport d'une bande de non-tisse au moyen d'une bande de transport avec portion ascendante et/ou a vitesse variable
DE502006000950D1 (de) 2006-02-01 2008-07-31 Dilo Kg Maschf Oskar Vorrichtung zum Legen eines Vlieses
EP1959038B1 (de) * 2007-02-15 2010-04-14 Oskar Dilo Maschinenfabrik KG Vorrichtung zum Legen eines Vlieses
DE102007037564B4 (de) * 2007-08-09 2013-11-14 Robert Bosch Gmbh Verfahren zur Achskorrektur bei einer Verarbeitungsmaschine
FR2930563B1 (fr) 2008-04-28 2010-04-30 Asselin Thibeau Dispositif tampon et systeme de production d'une bande de non-tisse
FR2957092B1 (fr) 2010-03-08 2012-03-23 Asselin Thibeau Chariot mobile d'entree d'etaleur nappeur comportant un rouleau de detour avec cannelures ou annelures
CN104532478B (zh) * 2014-12-16 2018-01-12 于明 高速交叉铺网机

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US2387150A (en) * 1940-09-26 1945-10-16 Rudolf F Hlavaty Material handling apparatus
SE322153B (de) * 1968-06-07 1970-03-23 Nordiska Maskinfilt Ab
US3651543A (en) * 1969-05-08 1972-03-28 Madis Valdurovich Loo Apparatus for treating carded fibrous material for forming a web of said material
FR2234395B1 (de) * 1973-06-19 1976-09-17 Asselin Robert
US4194270A (en) * 1976-03-06 1980-03-25 Eduard Hille Apparatus for laying fiber fleeces or the like on a moving withdrawal belt
US4357739A (en) * 1977-03-07 1982-11-09 Hergeth Kg Maschinenfabrik Und Apparatebau Apparatus for laying fiber fleeces or the like on a moving withdrawal belt
US4195270A (en) * 1978-05-30 1980-03-25 Sperry Corporation Dielectric slab polarizer
DE3738190C2 (de) * 1987-11-10 1997-10-16 Autefa Holding Gmbh Verfahren zur Bildung eines Vlieses und Vliesbandleger
US4830351A (en) * 1988-01-27 1989-05-16 Morrison Berkshire, Inc. Batt stabilization in cross-lapped web manufacturing apparatus
US4984772A (en) * 1989-05-15 1991-01-15 E. I. Du Pont De Nemours And Company High speed crosslapper
DE4010174A1 (de) * 1990-03-30 1991-10-02 Hollingsworth Gmbh Verfahren zum ablegen eines vlieses oder dgl., sowie vliesbandleger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009520A1 (de) 2012-07-13 2014-01-16 Hi Tech Textile Holding Gmbh Vliesleger
US9909236B2 (en) 2012-07-13 2018-03-06 Hi Tech Textile Holding Gmbh Cross-lapper

Also Published As

Publication number Publication date
EP0517563B2 (de) 2000-09-13
DE69205335T2 (de) 1997-02-06
EP0517563A1 (de) 1992-12-09
FR2677045B1 (fr) 1993-09-03
ATE129027T1 (de) 1995-10-15
DE69205335T3 (de) 2001-05-17
US5289617A (en) 1994-03-01
ES2078694T5 (es) 2000-12-16
ES2078694T3 (es) 1995-12-16
FR2677045A1 (fr) 1992-12-04
WO1992021799A1 (fr) 1992-12-10
JP3258320B2 (ja) 2002-02-18
DE69205335D1 (de) 1995-11-16
JPH06502697A (ja) 1994-03-24
DE517563T1 (de) 1993-06-09

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