Fibre treatment plant and fibre treatment method

Abstract

The invention relates to a fibre treatment plant (1) and a treatment method for a moving fibrous web (6, 6', 6'') comprising a fibrous web producer (2), in particular a card or carding machine, a consolidation device (4), in particular a spunlacing device, and a fibre orientation device (3) which comprises at least one orientation unit (22, 23, 24) which comprises at least one condenser unit (25) which is configured to back up the moving fibrous web (6, 6') at a backing-up location (26) between fibrous web conveying means which are driven in a controlled manner and at different transport speeds, and in the process to reorient fibres in the fibrous web (6, 6') from a fibre orientation in the longitudinal direction (MD) into a fibre orientation in the transverse direction (CD), wherein the fibrous web conveying means which feeds in the fibrous web (6, 6') has a higher transport speed at the backing-up location (26) than the discharging fibrous web conveying means. The fibre orientation device (3) comprises an intermediate orientation unit (23) which is arranged in the region between the fibrous web producer (2) and the consolidation device (4) and comprises a plurality of condenser units (25, 25') which are arranged behind one another in a transport direction (7) of the fibrous web (6) and have a plurality of back-up locations (26, 26').

Description

[0001] DESCRIPTION Fiber treatment system and fiber treatment method The invention relates to a fiber treatment system and a fiber treatment method with the features in the preamble of the independent claims. Such a fiber treatment system, together with system components and fiber treatment methods, is known from practice. The fiber orientation device comprises an orientation unit arranged between the fiber web generator and the consolidation device, which accumulates the moving fiber web at accumulation points between controlled, driven fiber web conveyors and, in the process, reorients fibers in the fiber web from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD). The longitudinal direction (MD) is also the machine direction or the fiber web running direction.A fiber web conveyor is designed as a rotating suction roll, to which another fiber web conveyor in the form of a feed belt and a discharge belt are adjacent on the feed and discharge sides. Two accumulation points are formed, one between the incoming fiber web conveyor and the suction roll, and the other between the suction roll and the discharge fiber web conveyor. The strength and elongation of the consolidated fiber web in (MD) and (CD) can be adjusted using the known fiber orientation device. The object of the present invention is to improve the fiber treatment plant and the fiber treatment method overall, and in particular the adjustment options for the strength and elongation of the ultimately produced and consolidated or solidified fiber web in (MD) and (CD). The invention solves this problem with the features in the independent claims. The claimed fiber treatment technology, i.e.The fiber treatment plant and the fiber treatment process, their plant components, and the associated processes offer various advantages. The strength and elongation of the consolidated or bonded fiber web in (MD) and (CD) can be adjusted better, more sensitively, and with better reproducibility than with the state of the art. Particular advantages arise for lightweight fiber webs with low basis weights and possibly low densities, particularly in conjunction with high transport speeds of the produced fiber web. The plant components fiber orientation device, bonding device, and fiber web generator, as well as the associated processes, are each independent components that can be implemented as original equipment in an existing fiber treatment plant and process, or implemented as retrofitting or conversion in an existing fiber treatment plant and process.The fiber treatment plant for producing a moving fiber web comprises at least one fiber web producer, preferably a carding machine or roller, a bonding device, preferably a spunlacing device, and a fiber orientation device. The fiber web producer, in its design as a carding machine or roller, can produce a dry-laid fiber web. The dry-laid fiber web, in particular a carded fiber web, can have a predominant fiber orientation in (MD). The fiber treatment plant can comprise several fiber web producers. The fiber web producer(s) and the bonding device can also be designed in a different way. One or more fiber web producers can, for example, produce a wet-laid fiber web. A fiber web producer for a dry-laid fiber web can, for example, also be designed as an airlay or airlaid, wherein, for example, loose fibers are thrown or blown off onto a conveyor belt or the like.The compression and reorientation of the fibers from (MD) to (CD) preferably takes place on a dry-laid fiber web. The fiber orientation device can comprise one or more orientation units, each with at least one condenser unit. The condenser unit can also be referred to as a compression unit. The at least one condenser unit is designed to accumulate the moving fiber web at a storage point between fiber web conveyors driven in a controlled manner at different transport speeds, and in doing so to reorient fibers contained in the fiber web from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD). At the storage point, the fiber web conveyor feeding the fiber web has a higher transport speed than the fiber web conveyor removing it. This also applies to the claimed method for producing a consolidated fiber web.The fibers can be loose textile staple fibers, in particular natural fibers, e.g. made of wood, cotton, wool or the like, or man-made fibers or synthetic fibers, e.g. made of plastics such as PE, PP, polyester or the like. The fiber web is a nonwoven web. At the accumulation point, a bulging web accumulation is created between the fiber web conveying means, whereby the fiber web fed in one transport direction is accumulated and thereby also compressed. The fibers are arranged loosely and movably in the not yet consolidated nonwoven fiber web. During accumulation and compression, they give way. The elongated fibers are reoriented and change their direction of extension in the transverse direction of the fiber web or in (CD). The fiber web conveying means are also spaced apart from one another, which can be smaller than the thickness of the fed fiber web, so that the fiber web can be compacted between the fiber web conveying means and its thickness can be reduced.By reorienting the fibers at the congestion point, the ratio of fibers aligned in (MD) to fibers aligned in (CD) changes. This influences the strength and the change in elongation of the ultimately produced and consolidated or solidified fiber web. The strength is greater along the longitudinal fibers than in the direction transverse to them. Reorienting fibers in (CD) increases the strength in (CD) and decreases the elongation. By controlling and adjusting the respective fiber proportions in (MD) and (CD), the ratio of the strengths and elongations in (MD) and (CD) is influenced accordingly. For some applications of the consolidated fiber web, it is advantageous to have a strength and elongation ratio (MD) / (CD) of 2 or less. If necessary, the fiber orientation device can also stretch the fiber web at another location and reorient the fibers in (MD).One or more other devices may be present for this purpose. The transport speed of said fiber web conveying means, each independently controlled and driven, can be set and adjusted to suit the process requirements. They can be designed as a rotating suction roll, transport means, intermediate conveyor, etc. in the claimed manner. The controlled-driven fiber web conveying means that form the accumulation point can have different transport speeds. This is advantageous for forming and influencing the accumulation point and the bulging fiber accumulation there. The fiber web conveying means that discharges the fiber web can advantageously be or have been set to a lower transport speed than the fiber web conveying means that feeds the fiber web.By adjusting and influencing the speed difference, the desired accumulation and fiber reorientation can be influenced. It is also possible to set the incoming and outgoing fiber web conveyors to the same transport speed, if required. In the case of a translatory fiber web conveyor, the transport speed can be a translatory, in particular linear, transport speed. In the case of a rotary fiber web conveyor, the transport speed can be a peripheral speed. In one aspect of the invention, the fiber orientation device comprises an intermediate orientation unit arranged in the region between the fiber web generator and the consolidation device. The intermediate orientation unit is arranged downstream of the at least one fiber web generator and upstream of the consolidation device in the transport direction of the fiber web.The intermediate orientation unit comprises several, e.g. two, condenser units arranged one behind the other in a transport direction of the fiber web, with several, e.g. two, accumulation points. The number of condenser units and accumulation points can also be greater than two. Other orientation units can be arranged on the at least one fiber web producer and on the consolidation device. The several accumulation points of the intermediate orientation unit are arranged one behind the other at a distance in the transport direction of the fiber web. The several accumulation points are preferably distributed over different condenser units. The intermediate orientation unit arranged in the area between the fiber web producer and the consolidation device and its several condenser units can be designed in different ways. For example,one fiber web conveying means at a condenser unit is designed as a rotating, preferably cylindrical, suction roll and the other fiber web conveying means as an adjacent incoming transport means and / or as a discharge transport means. The incoming transport means can be, for example, a transport means of the fiber web producer. The discharge transport means can be an incoming transport means of the downstream consolidation device. The transport speeds of the fiber web conveying means and their relative relationships can be or have been set in the claimed manner to form preferably a single or, if necessary, two or more accumulation points. Preferably, only one incoming accumulation point is formed between the rotating suction roll and the incoming transport means. A discharge-side accumulation point, which is not optimal in terms of reliable adjustability, between, for example, a higher-lying suction roll and a, for exampleLower-lying discharge transport means can be omitted. At this discharge-side accumulation point, the not yet consolidated fiber web guided along the underside of the suction roll is in a hanging position, whereby the fibers contained in the fiber web cannot be optimally reoriented and may leave the fiber web and fall down. In addition, the fiber web can develop wrinkles. This can have a negative impact on the quality of the fiber web and the end product made from it. At the other, feed-side accumulation points of the fiber orientation device, the fiber accumulation formed at the accumulation points can be supported from below, which reduces the risk of fiber loss. Furthermore, the fibers can reorient themselves more easily in the desired manner in such a supported fiber accumulation.The preferred design of the intermediate orientation device and its rotating suction roll with only one feed-side accumulation point offers the advantage of more manageable accumulation and reorientation of the fibers, combined with quality assurance of the fiber web and the final product. Single or multiple suction devices on an incoming transport device can also have a positive effect, with significant degrees of compression and reorientation being achieved at the feed-side accumulation point of the suction roll. With the intermediate orientation device and its rotating suction roll, the transport speeds of the suction roll and the outgoing transport device can be the same on the outgoing side, which can ensure the transfer of the fiber web to the outgoing transport device and prevent quality losses.The transport speed of the outgoing transport means can also be slightly higher than the transport speeds of the suction roll. The slight tension this creates on the fiber web can be beneficial for its stabilization and quality assurance. For example, a compression of approximately 30% on the feed side of the rotating suction roll and a tension of approximately 10% on the discharge side are favorable. This means that the transport speed of the rotating suction roll for compression and reorientation of the fibers is approximately 30% lower than the transport speed of the incoming transport means and for tension is approximately 10% lower than the transport speed of the outgoing transport means. The arrangement of several accumulation points has the advantage that the overall adjustment of the strength and elongation of the consolidated fiber web in (MD) and (CD) to be achieved at the intermediate orientation unit can be divided between two or more separate accumulation points.The local compression and reorientation of the fibers at the accumulation points, in particular only on the feed side, can be adjusted better and more precisely. In sum, they can also lead to a higher overall degree of compression and reorientation of the fibers. These advantages are particularly evident in the case of lightweight fiber webs with low basis weights and possibly low densities, particularly in conjunction with high transport speeds of the produced fiber web. In the intermediate orientation unit, in one embodiment, the multiple condenser units can have a plurality of rotating suction rolls and an intermediate conveyor arranged therebetween. This can, for example, comprise a linear conveyor, in particular a continuously controllably driven endless intermediate belt and / or a rotating controllably driven intermediate roller. The endless design of the intermediate belt means its closed ring shape, whereby the ring shape can be produced in any desired manner.This also applies accordingly to the other belt-shaped transport means. The intermediate orientation unit with the plurality of condenser units can further comprise an adjacent feeding transport means on the feed side and a discharge transport means on the discharge side. These transport means can, for example, each be designed as an endless and circulating, controlled-driven conveyor belt. In the case of the intermediate orientation unit, it is advantageous if a rotating suction roller is arranged, preferably partially sunk, in a gap formed between a feeding transport means and a discharge transport means or an intermediate conveyor. The fiber web is bent around the lower region of the roller shell and held in place by suction or negative pressure during transport. The said transport means, the suction rollers and the intermediate conveyor can be designed in the aforementioned manner as controlled-driven and, if necessary,Fiber web conveying means can be designed with different speeds and have the aforementioned different transport speeds. In particular, the transport speed of these fiber web conveying means following one another in the transport direction can decrease successively. In this case, accumulation points can be formed at least between the incoming transport means and the first suction roll, as well as between the intermediate conveyor and the further suction roll. It is also possible to form an accumulation point between the first suction roll and the intermediate conveyor, as well as between the further suction roll and the outgoing conveying means. The number of suction rolls can preferably be two, but can alternatively be higher. In the latter case, several intermediate conveyors are also present.In another embodiment, in the intermediate orientation unit, the plurality of condenser units can comprise a rotating suction roll and two or more rotating intermediate rollers, as well as an adjacent feeding transport means on the feed side and an adjacent discharging transport means on the discharge side. In addition, a transfer means can be present on the discharge side. The rotating suction roll is preferably arranged in front of the two or more rotating intermediate rollers in the transport direction of the fiber web. These components of the condenser units each form a rotatingly driven fiber web conveying means of the aforementioned type. The two or more rotating intermediate rollers can be designed without a suction effect. They can have a roller covering that promotes the adhesion between the roller shell and the fiber web. This can act on the fiber web with frictional engagement and / or positive engagement and carry it along in the transport direction. The roller covering can, for example,be designed as a friction lining and / or can have drivers which are designed, for example, as teeth projecting radially or diagonally outwards on the roller shell. The intermediate rollers can be designed similarly to condenser rollers of a carding machine or carding machine. They can be designed accordingly in their direction of rotation and arrangement. The accumulation and the achieved condenser effect can be designed as in a carding machine or carding machine. The said transfer means can be arranged above the outgoing transport means and optionally at least partially above the further rotating intermediate roller. The transfer means can be designed, for example, as an endless and controlled, circulatingly driven, air-permeable conveyor belt. This can be sucked behind by means of a suction device so that the fiber web is held and transported by suction pressure on the underside of the transfer means, in particular the conveyor belt. The transfer means can also be designed in another way, e.g.be designed as a rotating and controlled-driven suction roll. The said components of the condenser units are designed in the aforementioned manner as controlled-driven fiber web conveying means and can have the said different transport speeds. With multiple condenser units, the transport speed of the fiber web conveying means can decrease successively in the transport direction of the fiber web. This creates two or more accumulation points. A rotating suction roll of a condenser unit can be rotatably mounted and driven. It can have a cylindrical shape, an inner cavity, and a perforated roll shell with radial through-openings. The suction roll can further comprise a suction sector that is stationary in the inner cavity, sealed off in the circumferential direction of the roll, is open towards the roll shell, and is connected to a suction device.The air is specifically sucked in from the environment through the fiber web and the perforated roller shell into the suction sector and then sucked out of the suction sector. The suction sector can have circumferential sector boundaries, which are designed, for example, as airtight walls and form a partition. The sector boundaries can be designed and arranged to be movable and, if necessary, adjustable. The adjustability in the circumferential direction allows the position and / or angle of the suction sector to be changed. The sector boundaries can be arranged between the roller shell and a suction pipe that is preferably central and permeable to air in the suction sector. The sector boundaries can be arranged with a straight and radial extension in the inner cavity of the suction roll. They can also have a different design and / or arrangement. The suction pipe that extends along the roll axis can be connected to the suction device and can have suitable openings or holes in its shell.Have suction openings that point towards the connected suction sector. The suction pipe can be sealed off from the rest of the interior. In the case of the suction roll of a condenser unit of the intermediate orientation unit, the suction sector can be arranged on the underside of the suction roll and can point downwards. This is particularly advantageous when the rotating suction roll is partially recessed in a gap between a supply transport means and a discharge transport means or an intermediate conveyor. The suction sector of a rotating suction roll can be designed and arranged in different ways. In an advantageous embodiment, the suction sector can extend in the transport direction or on the discharge side up to a tangential detachment point at which the fiber web sucked in in the area of ​​the suction sector leaves the rotating roll shell of the suction roll tangentially and in a straight line to the subsequent discharge fiber web conveyor.The suction sector can end at the tangential detachment point or shortly before it. The discharged fiber web conveying means in the transport direction, e.g. designed as an intermediate roller or conveyor belt, can have a rounded area facing the suction roll, against which the detached fiber web comes to rest. The position of the tangential detachment point in the circumferential direction can vary depending on the height ratio between the rotating suction roll and the discharged fiber web conveying means or transport means. It can be between 4 o'clock and 6 o'clock, for example with reference to a clock face and with a roll rotation counterclockwise,. A front, preferably radial, sector boundary of the suction sector in the transport direction of the fiber web or in the direction of rotation of the suction roll can be arranged at a boundary angle α to a vertical through the suction roll center point. The boundary angle α can be 45° or less, e.g. even 0°.The rear sector boundary in the transport direction can be arranged at an angle to a vertical through the suction roll center, which can also be 45° or greater. The rear sector boundary can be arranged in the area of ​​the feed-side accumulation point. The circumferentially limited suction sector can have a sector angle β between the sector boundaries, which can be 90° or more, e.g. up to 120°. The aforementioned design and arrangement of the suction sector is particularly advantageous with a recessed suction roll. It is also advantageous when the transport speed of the outgoing transport means is the same as or greater than the transport speed of the rotating suction roll.Such a design of the suction roll and its suction sector offers advantages for safe, straight, web-friendly, and direct guidance of the fiber web from the suction roll across the gap or distance to the downstream fiber web conveyor or transport means. Uncontrolled deflection movements of the fiber web, such as bulging, can be prevented or at least minimized. Such deflection movements could lead to irregularities in the fiber web structure, particularly to the formation of wrinkles. These advantages arise in particular when the transport speed of the downstream fiber web conveyor or transport means is equal to or greater than the transport speed of the rotating suction roll.According to a further independent aspect of the invention, the fiber orientation device comprises several orientation units, one of which is arranged on the said fiber web generator and another subsequently in the area between the fiber web generator and the consolidation device. This aspect of the invention can be combined with the aforementioned embodiments, in particular the suction roll. The orientation unit arranged on the fiber web generator and its condenser unit can be arranged at a delivery point of the fiber web of the fiber web generator onto its outgoing transport means. In this case, one incoming fiber web conveyor can be designed as a rotating delivery roller. The other outgoing fiber web conveyor can be formed by the outgoing transport means, which is preferably suctioned under at the delivery point. The transport means can, for example,formed by an endlessly circulating and controlled-driven, fluid-permeable, particularly air-permeable, discharge belt. The endless shape refers to a closed ring shape of the belt, which can be produced in any desired manner. The design of the fiber orientation device and the fiber web system equipped with it ensures improved adjustment options due to the multiple and spatially separated orientation units. Thanks to the separate adjustment options, the fiber reorientations and thus the desired strengths and elongations in (MD) and (CD) of the ultimately produced and consolidated or solidified fiber web can be adjusted better, in particular more sensitively and stably, and with better reproducibility. The formation of a jam point and a fiber jam there at the aforementioned discharge point of the fiber producer and on the transport means, which is preferably designed as a circulating conveyor belt.The arrangement of a suction device and the suction underneath the transport device are particularly advantageous. They hold the fiber web or partial fiber web(s) deposited on the transport device. This is particularly advantageous for accumulation. This is especially true when several partial fiber webs are produced separately in the fiber web generator, especially a carding machine or carding machine, and are then deposited one after the other on the outgoing transport device of the fiber web generator at various spatially separated and spaced delivery points, where they are layered on top of one another. The suction underneath the transport device can also have a positive effect on a subsequent intermediate orientation unit arranged between the fiber web generator and the bonding device.In the condenser unit at the delivery point of the fiber web producer, the transport means can be set or already set to a lower transport speed than the rotating delivery roller. The accumulation point and the fiber accumulation can be formed in the transport direction of the fiber web or partial fiber web in front of and at a gusset between the discharge transport means and the feeding rotating delivery roller. The orientation function at the fiber web producer can be improved if the rotating delivery roller feeding a fiber web or partial fiber web is designed as a suction roller with a stationary suction sector. A rotating suction roller can be designed in a similar way to the suction roller described above. In a producer-side orientation unit, the rotating delivery roller or suction roller is advantageously arranged above the discharge fiber web conveyor or transport means, in particular the discharge belt.In an advantageous embodiment, the delivery point of the fiber web generator and the multiple generator-side orientation units are arranged on the same outgoing fiber web conveyor. This compact design saves space and offers production-technical advantages, particularly for high web speeds and partial fiber webs with a low basis weight. It enables precise compression and positioning of two or more partial fiber webs on top of one another when forming them. In a modified embodiment, a fiber web generator for a dry-laid fiber web, in particular a carding machine or roller, can each have its own transport means connected to the respective delivery roll, in particular a rotating suction roll, of a partial fiber web. The multiple transport means can then transfer and deposit their respective partial fiber webs onto a common onward transport means, in particular a conveyor belt.These deposit points on the transport means can be designed similarly to the previously described delivery points and each have a producer-side orientation unit and accumulation point. At a transfer point between the transport means and the common onward transport means, a transfer-side orientation unit can be arranged, which can comprise a condenser unit with a rotating suction roll with a stationary suction sector at the transfer point. The accumulation point can be formed between the said transport means of the partial fiber web and the rotating suction roll. Furthermore, an accumulation point can be formed at the transfer point between the rotating suction roll and the common onward transport means. Here, several superimposed partial fiber webs can be compressed together and their fibers reoriented in (CD).The suction sector of the rotating suction roller and the transport speeds can be adjusted accordingly. The fiber orientation device can have a transfer-side orientation unit between transport means, in particular conveyor belts, also at another location in the fiber treatment system. The fiber orientation device can comprise two or more orientation units of the aforementioned type. A bonding-side orientation unit can be arranged, for example, on the bonding device, in particular on the spunlacing device. In an advantageous embodiment, the fiber orientation device of the fiber treatment system can have three or more orientation units arranged on the fiber web generator, on the bonding device, and between them.The claimed design of a fiber web producer configured as a carding machine or carder and its roller configuration with a drum, transfer roller, at least one doffer roller, at least one condenser roller, and at least one discharge roller, as well as a discharge and preferably suction-assisted transport means, has production-technical advantages. These include savings in space and construction costs, achievable high transport speeds for the fiber web and partial fiber webs, and increased performance and cost-effectiveness of the fiber web producer and the fiber web system. Alternatively, other designs are possible, in which, for example, the transfer roller is omitted. A carding machine or carder can also have an integrated orientation and condenser unit, which, for example, comprises a doffer roller and a condenser roller as incoming and outgoing fiber web conveying means.The fiber treatment plant can have a plurality of fiber web producers, in particular cards or carding machines or the like, arranged one behind the other in the transport direction of the fiber web, each producing a fiber web, wherein the fiber treatment plant comprises a fiber orientation device with at least one intermediate orientation unit. One or more fiber web producers of the aforementioned type can each produce a dry-laid fiber web. In addition, if necessary, one or more further fiber web producers can each produce a wet-laid fiber web. The row arrangement of the fiber web producers can vary. Fiber web producers for a dry-laid fiber web are designated by the type abbreviation C and fiber web producers for a wet-laid fiber web are designated by the type abbreviation P. Advantageous row arrangements have, for example, a CC, CP or CPC configuration. The plurality of dry and, if necessary,Wet-laid fiber webs can be arranged on top of one another, with the ultimately produced multi-layer fiber web being subsequently consolidated. There are various advantageous options for the design and arrangement of the intermediate orientation unit(s). These can also be used in mixed combinations. The intermediate orientation unit(s) can be designed as described above. In one embodiment, an intermediate orientation unit can be arranged downstream of each of the several fiber web producers, in particular of type C. The respective intermediate orientation unit can be assigned to the respective fiber web producer, acting on the fiber web produced by it. The strength and elongation in (MD) and (CD) can be individually adjusted for each fiber web produced.In another embodiment, an intermediate orientation unit can comprise a first condenser unit with a suction roll, which is arranged downstream of a first fiber web producer, in particular of type C. It can comprise a further condenser unit with a suction roll, which is arranged downstream of a further fiber web producer, in particular of type C, wherein the intermediate conveyor arranged between the suction rolls extends below the further fiber web producer. A depositing point for the fiber web produced by the further fiber web producer can be arranged on the intermediate conveyor upstream of the further condenser unit. In this configuration, the first condenser unit and its suction roll can act on the fiber web produced by the first fiber web producer. The further condenser unit and its suction roll can act on both fiber webs laid on top of one another. The suction rolls each preferably have only a feed-side accumulation point.The strength and elongation in (MD) and (CD) of the fiber web produced by the further fiber web producer can also be individually adjusted using at least one orientation unit and its condenser unit. At the depositing point on the intermediate conveyor, for example, a transfer-side orientation unit can be arranged. Alternatively or additionally, one or more producer-side orientation units and / or further transfer-side orientation units can be present. The consolidation device can be an independent component and a separate invention within the fiber treatment plant. This also applies accordingly to the consolidation process. The consolidation device can be designed as a spunlacing device. It can be a multiple arrangement of consolidation units, each with a controlled, driven rotating suction roll and one or more, if necessary,adjustable injectors that emit fluid jets, in particular liquid jets, preferably water jets, under high pressure. The spunlacing device is also referred to as a water jet entanglement device or a hydroentanglement device. The spunlacing device can also operate with hot gas jets to consolidate the fiber web. This design of the consolidating device is advantageous for the claimed fiber treatment system. In the said independent inventive embodiment, the fiber treatment system for a moving fiber web can comprise a fiber web generator, in particular a carding machine or roller, a consolidating device, in particular a spunlacing device, and a fiber orientation device.The fiber orientation device can have at least one orientation unit, which includes at least one condenser unit, which is designed to accumulate the moving fiber web at a storage point between controlled-driven fiber web conveying means and in the process reorient fibers in the fiber web from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD). The said consolidation device can be designed as a spunlacing device, which includes a controlled-driven feeding transport means, in particular a feed belt, and a multiple arrangement of consolidation units for consolidating the fiber web. The consolidation units can each have a controlled-driven rotating suction roll for transporting the fiber web lying peripherally on the roll shell and at least one optionallyadjustable injector which is designed to direct a fluid jet, in particular a water jet or hot gas jet, under high pressure from the outside onto the rotating suction roll and onto the supporting fiber web in order to consolidate it. In a particularly advantageous embodiment, the consolidation device has a turning device with which the fiber web can be placed either with its top side or its bottom side on the casing of the suction roll of a consolidation unit located downstream in the transport direction of the fiber web. The direction of rotation and drive of the suction roll can be changed. This is advantageous in order to be able to carry out the consolidation and the jet exposure of the injector jets on the top and bottom of the fiber web as required.In a first and a subsequent second consolidation unit, the contact side of the fiber web can already be changed, with the jet being applied once to the top side and once to the underside of the fiber web. A spreader arranged at the transition between the consolidation units, e.g. a rotating and possibly controlled spreader roller, can stretch the fiber web in the width direction and prevent the formation of wrinkles or other undesirable deformations of the fiber web that is not yet strongly consolidated. In a third or possibly also a further condenser unit, the contact side of the fiber web can be selected as required using the turning device. This is advantageous, for example, in order to subject one of the fiber web sides to a greater number of injector jets and to consolidate it.The turning device can be arranged between the second and the third consolidation unit and / or between the third and a further consolidation unit. The turning device can have feed-side deflection rollers and discharge-side deflection units, which, depending on the selected contact side of the fiber web, can feed the latter to the suction roller of the respective consolidation unit and discharge it again from there. The discharge-side deflection units can then feed the respective consolidation web to a preferably common discharge means, e.g., an endlessly circulating and controlled-drive discharge belt. In a further advantageous and independent inventive embodiment, the feeding transport means of the consolidation device can have an adjusting device. With the adjusting device, the distance and the gap dimension as well as the angle of attack of the transport means, e.g.The distance of the conveyor belt relative to the suction roll of the first consolidation unit can be adjusted and, if necessary, adjusted. This is also advantageous for an orientation unit arranged on the consolidation device. The distance can be reduced to "0," whereby the transport means, in particular the flexible upper run of a belt, rests against the roll shell over a definable wrap angle. In a further and independent inventive embodiment, an injector can be arranged at a transfer point of the fiber web from the feeding transport means to the suction roll of the first consolidation unit. This injector can be adjustable, in particular pivotable. The pivoting can take place around the central roller and rotational axis of the suction roll.The adjustment option allows adaptation to changing process requirements, in particular to changes in the gap size and / or to a changed angle of attack of the transport means relative to the suction roll. In a further and independent inventive embodiment, a moistening device and / or a pre-consolidation device for the fiber web can be arranged on the incoming transport means upstream of the first consolidation unit. This makes it possible to achieve advantageous spatial proximity to the first consolidation unit and its suction roll. The suction rolls of the consolidation units can have a stationary one, which is opposite the injectors in the jet direction. The suction sector can be segmented, whereby the suction segments, which may be mutually isolated, can cooperate with suction slots on the suction roll and can be concentrated on the injector jets.Otherwise, the suction sector can preferably be adjustable and designed in the manner described above. In a further and independent inventive embodiment, a suction box with one or more suction nozzles can be arranged in the hollow interior of a suction roll of one or more consolidation units. The one or more suction nozzles can each be aligned with an associated injector in its jet direction. They can also rest resiliently and tightly against the suction roll shell. Advantageously, the suction nozzles can be adjustable, whereby in particular the nozzle width can be changed. The suction box can be designed, for example, according to WO 2020 / 120412 A1. Further advantageous embodiments of the invention are specified in the subclaims. The described and claimed device features can be advantageously used in the claimed method.Conversely, the described and claimed method features can also be advantageously used in the claimed device(s). In the aforementioned further independent inventive aspect of the multiple orientation units, the fiber treatment system for a moving fiber web can comprise at least one fiber web generator, in particular a carding machine or carder, a bonding device, in particular a spunlacing device, and a fiber orientation device.The fiber orientation device can have at least one orientation unit which comprises at least one condenser unit which is designed to accumulate the moving fiber web or partial fiber web at a storage point between fiber web conveyors which are driven in a controlled manner and at different transport speeds, and in doing so to reorient fibers in the fiber web from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD), wherein at the storage point the fiber web conveyor feeding the fiber web has a higher transport speed than the fiber web conveyor discharging it.The fiber orientation device comprises a fiber web-side orientation unit arranged on the fiber web producer, in particular the carding machine or carding machine, and a further orientation unit arranged downstream in the area between the fiber web producer and the consolidation device, with at least one rotating suction roll. The producer-side condenser unit is arranged at a delivery point of the fiber web or partial fiber web of the fiber web producer, with one supplying fiber web conveyor being designed as a rotating delivery roll and the other discharging fiber web conveyor being designed as an air-permeable transport means, in particular a discharge belt, under suction at the delivery point.

[0002] The invention is illustrated schematically and by way of example in the drawings. In detail: Figure 1: A fiber treatment system with a fiber web producer, a bonding device and a fiber orientation device in a first embodiment with an orientation unit arranged on the fiber producer and a further orientation unit arranged between the fiber producer and the bonding device, Figure 2: a modification of the orientation unit arranged on the fiber producer with the discharge roller there configured as a suction roller, Figure 3: the fiber treatment system of Figure 1 with a different embodiment of the orientation unit arranged between the fiber web producer and the bonding device, Figure 4: a modification of the orientation unit of Figure 3 with a transfer means, Figure 4a: a variant of Figure 4 with a different configuration of the transfer means, Figure 5: a fiber treatment system with a further variant of theFiber orientation device, Figure 6: a fiber treatment system of the aforementioned type with a special design of the consolidation device, Figure 7: a broken-off, sectional view of a fiber web generator designed as a carding machine or carding machine, Figure 8: a sectional view of the consolidation device, Figures 9 to 12: embodiments of a suction roll in various views, Figures 13 to 16: various variants of a fiber treatment system with several fiber web generators and a fiber orientation device. The invention relates to a fiber treatment system (1) for producing a consolidated or consolidated fiber web (6) and a production method. The invention also relates to the components of the fiber web treatment system (1) and their associated methods. Figure 1 shows a fiber treatment system (1) for producing a consolidated fiber web (6). The fiber treatment system (1) comprises at least one fiber web generator.(2, 2', 2"), a consolidation device (4) and a fiber orientation device (3). The consolidation device (4) can be followed by further processing (5), e.g. a dryer or the like. The fiber web producer (2, 2') is designed as a carding machine or roller in the embodiments shown in Figures 1 to 7, 13 and 14 and is explained in more detail below. Here, for example, in Figure 13 on the one hand and in Figures 1 to 7 and 14 on the other hand, different carding variants are shown. The fiber web producer (2, 2') shown in the various variants each produces a dry-laid fiber web (6) from short textile fibers, which can be designed, for example, as artificial fibers or synthetic fibers and / or natural fibers and / or recycled fibers. The carding machine or roller first forms, for example, on a drum (11), a fiber web (12), which can optionally be divided into several, e.g. two or more, partial webs or partial fiber webs (6a,6b) and in one or moreThe fiber web (12) or the partial fiber webs (6a, 6b) are then transferred to one or more delivery points (18), each to its own or to a common transport means (19), and if necessary, placed on top of one another. At the first delivery point (18) in the transport direction (7), the first partial fiber web (6a) is transferred to the transport means (19). At the second delivery point (18) in the transport direction (7), the further partial fiber web (6b) is placed on the first partial fiber web (6a). There, the fiber web (12) or the partial fiber webs (6a, 6b) form the fiber web (6) produced and delivered by the fiber web generator (2, 2'). The fiber web generator (2, 2') can alternatively be designed in a different way. It can be designed for a dry-laid, possibly multi-part, fiber web (6, 6'), e.g. as an airlay, airlaid, or in another way. Another fiber web producer (2"), indicated for example in Figures 15 and 16, can produce a wet-laid, single-layer orproduce a multi-layer, fiber web (6"). This can be formed, for example, from one or more fiber suspensions, so-called pulp, which comprise a carrier fluid, e.g. water, and fibers in pure form or in fiber mixtures. The fibers can be natural fibers, e.g. wood fibers, cellulose fibers, and / or synthetic fibers and / or recycled fibers. The fiber suspension(s) are dewatered by a screen former or the like and then discharged as a fiber web (6"). The fiber treatment plant (1) can have a single fiber web generator (2). It can also comprise several identical or different fiber web producers (2, 2', 2"). Figures 1 to 12 show a single-station version and Figures 13 to 16 show multi-station versions. The consolidation device (4) is designed as a spunlacing device in the illustrated embodiments. It consolidates the fiber web (6) with fluid jets and is also explained in more detail below. The consolidation device (4)can alternatively also be designed in a different way, e.g. as a needling machine. The fiber orientation device (3) can be designed in different ways. It comprises one or more orientation units (22, 23, 23', 24), each of which has at least one condenser unit (25). The respective condenser unit (25) is designed to accumulate the moving fiber web (6) or a partial fiber web (6a, 6b) at a accumulation point (26) between fiber web conveyors driven in a controlled manner and, in the process, to reorient fibers contained in the fiber web (6) or partial fiber web (6a, 6b) from a fiber orientation in the longitudinal direction (MD) or transport direction (7) to a fiber orientation in the transverse direction (CD). At the accumulation point (26), a bulging web accumulation (27) is created between the fiber web conveying means, in which the fiber web (6) or partial fiber web (6a, 6b) fed in a transport direction (7) is accumulated and thereby also compressed. The controlled driven andThe fiber web conveying means explained below can be driven jointly or individually by drive means not shown. These can be connected to a control system of the fiber treatment system (1) (not shown) or to a separate control system of the fiber orientation device (3) or of the respective orientation unit (22, 23, 23', 24). The fiber web conveying means can have different high or fast transport speeds, which can be set and adjusted if necessary. In order to compress or reorient the fibers, the fiber web conveying means discharging the fiber web (6) or partial fiber web (6a, 6b) can be set or have been set to a lower transport speed than the respective feeding fiber web conveying means in the conveying means pair. The said accumulation point (26) is formed between the mutually assigned fiber web conveying means. The degree of reorientation and accumulation canbe controllable. It can be influenced and adjusted, for example, by varying the speed difference between the feeding and the discharging fiber web conveyor. The fiber web conveyors can also have a mutual distance that can be smaller than the thickness of the fed fiber web (6) or partial fiber web (6a, 6b), so that the fiber web (6) or partial fiber web (6a, 6b) is compacted between the fiber web conveyors and its thickness is reduced. A condenser unit (25) can have one or more accumulation points (26). Preferably, it has only one accumulation point (26) arranged on its feed side, at which the fiber web (6) or a partial fiber web (6a, 6b) is fed to the condenser unit (25). If a condenser unit (25) has several accumulation points (26) and accordingly several fiber web conveying devices, the transport speeds in this conveying device cascade decrease successively in the transport direction. The sameapplies to a multiple arrangement of condenser units (25) in the transport direction (7) one behind the other, which preferably each have only one feed-side accumulation point (26). Via this condenser unit cascade, for example, the transport speeds of the participating fiber web conveying means also decrease successively in the transport direction. The reduction takes place in stages according to the number of accumulation points (26) formed. This applies to all exemplary embodiments explained below. In the embodiment of Figure 1, the fiber orientation device (3) has two or three orientation units, each with one or more condenser units (25). A first orientation unit (22) in the transport direction (7) is arranged on the fiber web generator (2). A further orientation unit (23) following in the transport direction (7) is arranged in the area between the fiber web generator (2) and the consolidation device (4). A possible third orientation unit (24) can be arranged onthe consolidation unit (4). The producer-side orientation unit (22) has one or more condenser units (25). A condenser unit (25) is arranged at a delivery point (18) of a partial fiber web (6a, 6b) of the fiber web producer (2) to a transport means (19). The incoming fiber web transport means is designed, for example, as a rotating and controlled-driven delivery roller (16, 16'). The other outgoing fiber web transport means is formed by the transport means (19). The transport means (19) is designed, for example, as an endlessly circulating and controlled-driven discharge belt, which is also referred to as a card belt. The transport means (19) is, for example, suctioned at the discharge point (18), wherein a suction device (28) is arranged below the transport means (19), in particular below the upper run of the discharge belt, which exerts a suction pressure on the lying partial fibre web (6a) or onwhich exerts pressure on the fiber web (6) formed by the two partial fiber webs (6a, 6b) and holds it firmly on the moving transport means (19). The rotating discharge roller (16, 16') can be designed as a solid roller. It can have a roller covering with which the fiber web (6, 6') can be securely held on the roller shell and carried along during the rotational movement. Figure 2 shows a variant of the rotating discharge roller (16), which is designed here as a suction roller (29) which holds the partial fiber web (6b) on the rotating, rear-suctioned and air-permeable roller shell. The discharge roller (16') can be designed in the same way and act on its partial fiber web (6a). The suction roller (29) can have a defined, internal and stationary suction sector (30) to which the suction pressure is applied to the rotating roller shell. The suction sector (30) can be formed and delimited, for example, by baffles or in some other way. The suction roller (29) can be suitably equipped with a suction devicewhich sucks the air out of the suction sector (30) in the hollow interior of the suction roller (29) and creates a negative pressure there. In the embodiment shown, the suction sector (30) is directed against the transport direction (7) of the partial fiber web (6b). The partial fiber web (6b) is largely held on the underside of the roller. The discharge roller (16, 16') rotates counterclockwise. The circumferential movement and speed on the underside of the roller are parallel to the transport movement and speed of the transport means (19). In Figure 4, the partial fiber web (6b) is fed to the discharge roller (16, 16') from an upstream, co-rotating roller (15) and from the underside thereof. In another embodiment not shown, the upstream roller (15) can have a different direction of rotation and feed the partial fiber web (6a, 6b) to the delivery roller (16, 16') from its upper side. Furthermore, it is possible to have a furtherRoll to be switched between the rollers (15, 16) in order to feed the partial fiber web (6a, 6b) from above to the delivery roll (16, 16'). In the shown embodiment of the fiber web producer (2), which is designed, for example, as a carding machine or carding machine, two separate partial fiber webs (6a, 6b) are formed, for example, in separate roll strands and are delivered one after the other onto the transport means (19) at two separate delivery points (18) at a distance in the transport direction (7) of the fiber web (6). The first partial fiber web (6a) is laid directly onto the transport means (19), in particular onto the upper run of the discharge belt, and held in place by suction pressure. The second partial fiber web (6b) is laid at its delivery point (18) onto the first partial fiber web (6a) and the transport means (19), wherein the suction device (28) acts on both partial fiber webs (6a, 6b). In the embodiments shown in Figures 1 and 2, the accumulation point (26) and the bulging web accumulation (27) are arranged at a gussetformed between the delivery roller (16, 16') and the transport means (19) or the partial fiber web (6a) already resting thereon. The transport means (19) has a transport speed (V19) which is lower than the transport speed or peripheral speed (V16) of the delivery roller (16, 16'). In Figure 1, the further, downstream orientation unit (23) has two condenser units (25, 25') and two suction rollers (31, 32) spaced apart in the transport direction (7) and an intermediate conveyor (34) arranged therebetween. The first suction roller (31) of the first condenser unit (25) in the transport direction (7) is arranged in a gap between a feeding transport means (40) and the intermediate conveyor (34). The second suction roll (32) of the second condenser unit (25') is located in a gap between the intermediate conveyor (34) and a discharge transport means (41). The suction rolls (31, 32) each have a suction sector (33) of the type described above.(31, 32) each partially dip into the gap, with the suction sector (33) being arranged on the underside of the suction rollers (31, 32) and pointing downwards. The incoming transport means (40) and the intermediate conveyor (34) of the first condenser unit (25) are arranged essentially at the same height. The intermediate conveyor (34) can also be arranged lower than the incoming transport means (40). In the further condenser unit (25'), the intermediate conveyor (34) and the outgoing transport means (41) are arranged essentially at the same height. The outgoing transport means (41) can also be arranged lower than the intermediate conveyor (34). Figures 9 and 10 show these different embodiments. The incoming transport means (40) is formed, for example, by the transport means (19) of the fiber web producer (2) and the outgoing transport means (41) is formed, for example, by the input-side transport means (42) of the consolidation device (4). Alternatively, otherDifferent designs and arrangements of transport means are possible. In the embodiment of Figure 1, the intermediate conveyor (34) is designed as a linear conveyor (35), in particular as a continuously driven and controllably driven, endless intermediate belt. The first suction roller (31) in the transport direction (7), as the outgoing fiber web conveying means, has a transport speed or peripheral speed (V31) that is lower than the transport speed (V19) of the incoming transport means (19, 40). A storage point (26) is formed in the gap between the transport means (19, 40) and the suction roller (31). With regard to the downstream intermediate conveyor (34), the transport speed (V31) of the suction roller (31) and the transport speed (V34) of the intermediate conveyor (34) can be the same. The transport speed (V34) of the intermediate conveyor (34) can also be higher than the transport speed (V31) of the suction roller (31). Between the intermediate conveyor (34) and the downstream secondSuction roll (32) in turn forms a build-up point (26') with a bulging web build-up (27), wherein the transport speed (V32) of the suction roll (32) is lower than the transport speed (V34) of the intermediate conveyor (34). At the discharge-side transfer point of the fiber web (6) to the discharge transport means (41), the transport speed (V32) of the rotating suction roll (32) and the speed (V42) of the transport means (41, 42) can be the same. The transport speed (V42) of the transport means (41, 42) can also be higher than the transport speed (V32) of the suction roll (31). At these respective transfer points with the same or increasing speed, no build-up or compression of the fiber web (6) and no fiber reorientation occur. Figures 3 and 4 show further variants of the intermediate orientation unit (23) and its multiple condenser units (25, 25'). The fiber web producer (2) and the consolidation device (4) as well as theFurther treatment (5) can be designed in the same way as in the fiber treatment plant (1) of Figure 1, although not all components are shown for reasons of clarity. In the variant of Figure 3, as in Figure 1, two rotating suction rollers (31, 32) are provided, spaced apart in the transport direction (7) and driven in a controlled manner, along with an intermediate conveyor (34), wherein the intermediate conveyor (34) in the variant of Figure 3 is designed as a rotating and controlled-driven intermediate roller (36), preferably without a suction function. The function is the same as in Figure 1. The transport speed (V31) of the rotating suction roller (31) is lower than the transport speed (V19) of the feeding transport means (19, 40) and, on the other hand, is essentially the same as or lower than the transport speed (V34) of the intermediate conveyor (34). The transport speed (V32) of the second suction roller (32) is, in turn, lower than the transport speed(V34) of the intermediate conveyor (34) and, on the other hand, substantially equal to or lower than the transport speed (V42) of the outgoing transport means (41, 42). In a modification of the embodiments of Figures 1 and 3, the number of condenser units (25, 25') and suction rollers (31, 32) can be higher, wherein the number of intermediate conveyors (34) can also be correspondingly larger. Furthermore, in a modification of the embodiments shown in Figures 1 and 3, the transport speed (V42) of the outgoing transport means (41, 42) can be lower than the transport speed (V32) of the second suction roller (32), wherein a storage point can be formed between the suction roller (32) and the transport means (41, 42). Likewise, the speed (V34) of the intermediate conveyor (34) can be lower than the speed (V31) of the first suction roll (31), whereby a jamming point can also be formed in the gusset between these two fiber web conveying means. In the embodiment ofAccording to Figure 4, the intermediate orientation unit (23) also has several, e.g. two, condenser units (25, 25') and several, e.g. three, accumulation points (26, 26') for reorienting the fibers in (CD). The first condenser unit (25) in the transport direction (7) comprises the above-described suction roll (31) and the feeding transport means (19, 40). The second condenser unit (25') comprises the aforementioned rotating and controlled-driven intermediate roller (36) and a further, in particular second, rotating and controlled-driven intermediate roller (37) arranged downstream in the transport direction (7). The discharge transport means (41, 42) adjoins the latter. A transfer means (38) can also be arranged at the transfer point of the fiber web (6) from the second intermediate roller (37) to the discharge transport means (41, 42). The intermediate rollers (36, 37) do not have a suction effect. Instead, they can have a roller coating (17). This can be used as a friction lining.or can have drivers projecting radially or obliquely outwards from the roll shell, e.g. straight or inclined teeth. The design can be similar to that of the rollers of a carding machine or carding machine. The transport speed (V31) of the suction roller (31) is lower than the speed of the feeding transport means (19, 40), a jamming point (26) and a bulging web jam (27) with reorientation of the fibers in (CD) being formed in the nip between them. The transport speeds (V31) of the suction roller (31) and (V36) of the first intermediate roller (36) can be the same. The transport speeds (V36) of the first intermediate roller (36) can also be higher than the transport speed (V31) of the suction roller (31). The suction roller (31) and the first intermediate roller (36) have an opposite direction of rotation, as in Figure 3, with the suction roller (31) rotating counterclockwise and the intermediate roller (36) rotating clockwise. The two consecutiveand adjacent intermediate rollers (36, 37) rotate in the same direction. In this case, a jamming point (26') with fiber jamming and deflection of the fiber direction in (CD) is formed in the roller nip. The condenser effect shown here can be the same effect as with condenser rollers in a carding or carding machine. On the discharge side, the transport speed (V42) of the discharge transport means (41, 42) can be lower than the transport speed (V37) of the second intermediate roller (37). On the other hand, the transport speeds (V37) of the intermediate roller (37) and (V38) of the transfer means (38) can be essentially the same or increasing in the transport direction (7). The transfer means (38) is arranged above the discharge transport means (41, 42) and can also extend at least partially in the direction of and over the second intermediate roller (37). The transfer means (38) is designed, for example, as shown in Figure 4, as an endlessly rotating and controlled driven transfer belt (38').Transfer means (38) can have a suction device (39) which, for example, sucks behind the lower belt strand and thereby supports the transfer from the second intermediate roller (37) to the outgoing transport means (41, 42). Figure 4a shows a variant in which the transfer means (38) is arranged above and between the outgoing transport means (41, 42) and the second intermediate roller (37). The transfer means (38) is designed as a rotating and controlled-driven suction roller (38"). The suction sector is arranged on the underside of the roller. In the gusset between the transfer means (38) and the outgoing transport means (41, 42), an additional accumulation point (26") for reorienting the fibers in (CD) can be formed in both variants. Figure 5 shows a further variant of the intermediate orientation unit (23) and its single condenser unit (25) in this case with a single rotating and controlled-driven suction roller (31). This is partiallyarranged sunk in the gap between the supply transport means (19, 40) and the discharge transport means (41, 42), wherein the suction sector (33) is arranged on the underside of the roll and points downwards. The transport speed (V31) of the suction roll (31) is lower than the transport speed (V19) of the transport means (19, 40), whereby a jamming point (26) with a web jam (27) for reorienting the fibers in (CD) is formed in the gap between them. On the discharge side, the transport speed (V31) of the suction roll (31) and the transport speed (V42) of the discharge transport means (41, 42) can be the same. The transport speed (V42) of the discharge transport means (41, 42) can also be somewhat higher than the transport speed (V31) of the suction roll (31). In both cases, the fiber web (6) is not jammed or compressed on the discharge side, and no reorientation of the fibers in (CD) takes place. A higherThe transport speed (V42) of the outgoing transport means (41, 42) can exert a preferably low tensile force on the fiber web (6). In this embodiment and in the other previously described examples of the intermediate orientation unit (23), the one or more condenser units (25, 25') preferably each have a jamming point (26, 26') only on their feed side. Alternatively, the transport speed (V42) of the outgoing transport means (41, 42) can be lower than the transport speed (V31) of the suction roll (31), wherein a jamming point (26) with reorientation of the fibers in (CD) is formed in the said gusset. In the exemplary embodiments shown in Figures 1 to 45, the variants of the intermediate orientation unit (23) shown are shown in combination with the producer-side orientation device (22). In a modification of these embodiments, the generator-side orientation device (22) can be omitted or switched offFigures 9 to 12 show advantageous embodiments of the aforementioned one or more rotating suction rolls (3, 32). Figure 11 shows a perspective view of a rotating suction roll (31, 32) of a condenser unit (25, 25'), which is rotatably mounted at its front ends and driven in a controlled manner. The suction roll (31, 32) has a cylindrical shape, a central roll and rotation axis, an inner cavity (73) and a perforated roll shell (72) with essentially radial through-openings. The suction roll (31, 32) is connected, for example, at the front to an external suction device (76), which has, for example, a controllable vacuum generator. At least one suction sector (33) is arranged stationary in the inner cavity (73) of the rotating roll shell (72). As Figure 12 illustrates in a perspective cross-section through the suction roll (31, 32), the suction sector (33) is partitioned off in the circumferential direction of the roll and is radially aligned with the roll shell(72) is open towards the suction device (76). The suction sector (33) is connected to the suction device (76), wherein the air is specifically sucked out of the stationary suction sector (33). The suction pressure holds the fiber web (6) in the area of ​​the suction sector (33) on the rotating roller shell (72) and also carries it along as the roller rotates. In the inner cavity (73) there is arranged, for example, a suction pipe (77) which extends along the roller axis and is central. This is closed at one end and is connected to the suction device (76) via a line at the other end. The suction pipe (77) has one or more suction openings (78) on its pipe shell which form through openings for the suction flow and open out at the suction sector (33). The suction openings (78) can be designed as elongated axial suction slots. The suction sector (33) has circumferential sector boundaries (75, 75') which are designed, for example, as airtight, preferably flat sector walls and form the partition.The sector boundaries (75, 75') can also be slightly permeable to air. The sector boundaries (75, 75') are arranged in the inner cavity (73) between the roller shell (72) and the preferably central suction pipe (78) and preferably connect there in an airtight manner. The sector boundaries (75, 75') can have a straight and radial extension. They can be single-piece or multi-piece. They can also be adjustable. The sector boundaries (75, 75') can alternatively have a different shape and extension. Figures 9 and 10 show an arrangement of a suction roller (31) on a condenser unit (25) of an intermediate orientation unit (23). The embodiment shown can correspond to the arrangement in Figure 5. The embodiment shown can also be used with the other variants of the intermediate orientation unit (23) from Figures 1 to 4 and, if necessary, a multiple arrangement of suction rollers (31, 32) with appropriate adaptation. The rotating suction roller (31) isarranged partially recessed in a gap between a feeding transport means (40) and a discharging transport means (41) or an intermediate conveyor (34). The suction sector (33) is arranged on the underside of the suction roller (31) and points downwards. As Figures 9 and 10 illustrate, the suction sector (33) extends in the transport or roller rotation direction (7) or on the discharge side up to a tangential detachment point (74), at which the fiber web (6) sucked in in the region of the suction sector (33) leaves the rotating roller shell (73) tangentially and in a straight direction to the subsequent discharging fiber web conveyor or transport means (41, 42) or intermediate conveyor (34). The suction sector (33) ends at the tangential detachment point (74) or shortly before it. The subsequent fiber web conveying means, e.g. designed as an intermediate roller or conveyor belt, can have a rounded area facing the suction roller (31, 32) against which the detached fiber web (6) comes to rest.The front, preferably radial, sector boundary (75) in the transport direction (7) of the fiber web (6) or in the direction of rotation of the suction roll (31, 32) is arranged at a boundary angle α to a vertical through the suction roll center. The shown boundary angle α is, for example, 45°. It can also be less than 45°. The other, rear sector boundary (75') in the transport direction (7) is arranged at an angle to the said vertical through the suction roll center, which angle can also be 45° or greater. In Figure 9, the angular position at approximately 45° is shown in dashed lines and the position at a larger angle is shown in solid lines. The rear sector boundary (75') can, for example, be arranged in the area of ​​the feed-side accumulation point (26). The circumferentially limited suction sector (33) has, for example, a sector angle β between the sector boundaries (75, 75'), which can be 90° or more, e.g. up to 120°. In the embodiment of Figure 9, the inlet and outletThe outgoing transport means (19, 40, 41, 42) are arranged essentially at the same height. The outgoing transport means (41, 42) is arranged with its transporting upper side above the rotating suction roll (31, 32). In this case, with the roll rotating counterclockwise, the tangential detachment point (74) is located at a limiting angle α of approximately 45°, e.g. in the area between 4 and 5 o'clock (relative to a clock face). In the embodiment of Figure 10, the outgoing transport means (41, 42) is arranged below the incoming transport means (19, 40). Its transporting upper side is arranged essentially at the same height as the lower vertex of the rotating suction roll (31, 32). In this case, with the roller rotating counterclockwise, the tangential separation point (74) is located at a limiting angle α of approximately 0°, e.g., in the area of ​​6 o'clock (relative to a dial scale). With the arrangement of the suction roller shown(31, 32) and that of the suction sector (33), for example, the transport speed of the subsequently arranged discharge transport means (42) or intermediate conveyor (34) is the same or greater than the transport speed of the rotating suction roll (31, 32). This prevents the formation of a blockage point (26) on the discharge side. The design of the suction sector (30) and suction device (28) of the previously described rotating suction roll (29) can correspond to the suction sector (33), the suction pipe (78) and the suction device (76) of Figures 11 and 12. Figures 1, 3 and 7 illustrate, by way of example, the design of the fiber web generator (2) and its embodiment as a carding machine or carding machine. The fiber web generator (2) comprises a drum (11) which rotates about its central axis and is driven in a controlled manner. The drum (11) rotates, for example, clockwise at a peripheral speed (V11). A rotating and controlled driven transfer roller (13) is connected to the drum (11), which rotates in the opposite direction to theThe reel spool (11) rotates at a peripheral speed (V13) that is greater than the peripheral speed (V11). From the reel spool (11), a fiber web (12) is fed to the transfer roll (13), which then transfers it to two subsequent roll strands to form the partial fiber webs (6a, 6b). The roll strands are of identical design and arranged separately from one another. Adjacent to the transfer roll (13) in the transport direction of the fiber web (12) or the partial fiber webs (6a, 6b) in one roll strand is a doffer roll (14), which rotates in the opposite direction to the transfer roll (13) at a peripheral speed (V14) that is lower than the peripheral speed (V13) of the transfer roll (13). Adjacent to the doffer roller (14) in the transport direction is a condenser roller (15), which rotates in the opposite direction to the doffer roller (14) and at a peripheral speed (V15) that is significantly lower than the peripheral speed (V14) of the doffer roller (14). Adjacent to the condenser roller (15)connects the aforementioned delivery roller (16), which rotates in the same direction as the condenser roller (15) at a peripheral speed (V16) that is higher than the peripheral speed (V15). The other roller strand is designed accordingly and comprises a doffer roller (14'), a condenser roller (15') and a delivery roller (16'). The roller strands can comprise further and controlled rollers. The aforementioned rollers (11-16) can have an adhesion-promoting roller covering (17) of the aforementioned type. Figure 13 shows a variant of a fiber web producer (2, 2') designed as a carding machine or carding machine, in whose roller strands the transfer roller (13) is missing and the at least one doffer roller (14) removes the fiber web (11) or the partial fiber webs (6a, 6b) from the drum (11). In the embodiments shown, the delivery points (18) of the partial fiber webs (6a, 6b) from the said roller strands are arranged on the same and common transport means (19). In a modifiedIn the embodiment according to Figure 13, the roller strands can each have their own transport means connected to the respective delivery roller (16, 16') or suction roller (29). This can be designed, for example, as an endless and circulating controlled driven conveyor belt. The one partial fiber web (6b) can then be laid from one conveyor means onto the partial fiber web (6a) on the other conveyor means. The two conveyor means can also deposit their respective partial fiber webs (6a, 6b) onto a common discharge conveyor means. These depositing points can be designed similarly to the previously described delivery points (18). A previously described producer-side orientation unit (22) can be formed at the delivery point(s). A previously described delivery roller (16, 16') can, in a design as a suction roller (29), be arranged at the delivery point(s) from the roller strand to the respective conveyor means and / or between the conveyor means.and / or be arranged between the respective transport means and the common outgoing transport means. The said suction roller (29') can remove the relevant partial fiber web (6a, 6b) from the respective conveyor, hold it at its suction-backed roller area, and then deposit it on the common transport means or possibly a partial fiber web (6a) previously placed there, forming a storage point. The fiber web (6, 6') produced in this way can then be transferred from the other transport means or from the common transport means at a transfer point (18') to a further conveying transport means (19'), e.g. a conveyor belt. A transfer-side orientation unit (22') for compressing the produced fiber web (6, 6') and reorienting the fibers can be arranged at the transfer point (18'). This may comprise a condenser unit (25) at the transfer point (18'), wherein the one feeding fiber web conveying means is driven by the rotating delivery roll(16"), in particular rotating suction roller (29'), and the other outgoing fiber web conveying means is formed by the further conveying means (19'), in particular conveyor belt. Figures 13 and 14 show this arrangement. As Figure 7 illustrates, the fiber web generator (2) can have a machine frame (10) for the rollers and other components. It can also have a cleaning device (20) for one or more of the rollers, in particular the discharge rollers (16, 16'). The cleaning device (20) can be designed, for example, as a stationary or rotating brush. Furthermore, a feed device (21) for feeding any additional media required, e.g., flexible films or the like, to a partial fiber web (6a, 6b) can be provided. Figures 13 to 16 show embodiments of a fiber treatment plant (1) comprising several identical or different fiber web generators (2, 2', 2") and a fiber orientation device (3) of the type described above and aConsolidation device (4). The fiber web producers (2, 2', 2") are arranged one behind the other in the transport direction (7). The fiber web producers (2, 2') of type C each produce a dry-laid fiber web (6, 6'), which can comprise one or more layers or partial fiber webs (6a, 6b). The fiber web producers (2, 2') can be of the same or different designs. In the figures shown, they are designed, for example, as cards or rollers. The fiber web producer (2") of type P can be present individually or in multiples. It produces a wet-laid fiber web (6"), which can comprise one or more layers or partial fiber webs (6a, 6b). Figure 13 shows a fiber treatment plant (1) with two fiber web generators (2, 2') of type C, which are arranged and lined up one behind the other in the transport direction (7). The number of fiber web generators (2, 2') can also be greater. The fiber orientation device (3) of the fiber treatment plant (1) comprises an intermediateOrientation unit (23). This can be designed and function as described above. The fiber orientation device (3) can also comprise one or more producer-side orientation units (22) and / or one or more transfer-side orientation units (22') and / or a consolidation-side orientation unit (24). The, for example, single intermediate orientation unit (23) is arranged in the area between the first fiber web producer (2) and the consolidation device (4). It has several, for example two, condenser units (25, 25') with several, for example two, rotating suction rolls (31, 32) and preferably only feed-side accumulation points (26, 26'), as well as an intermediate conveyor (34) arranged between the suction rolls (31, 32). The intermediate conveyor (34) is designed as a linear conveyor (35) in the form of an intermediate belt. The first condenser unit (25) with the suction roller (31) is arranged in the transport direction (7) after the first fiber web generator (2)arranged. The incoming fiber web conveyor of the condenser unit (25) is formed by a transport means (19, 40), in particular a discharge belt, of the fiber web generator (2). The compression of the incoming fiber web (6) of the first fiber web generator (2) and the reorientation of the fibers take place in the manner described above. The further condenser unit (25') with the suction roller (32) is arranged in the transport direction (7) downstream of the further fiber web generator (2') and upstream of the consolidation device (4), with the intermediate conveyor (34) extending beneath the elevated further fiber web generator (2'). A depositing point for the fiber web (6') produced by the further fiber web generator (2') is arranged on the intermediate conveyor (34) upstream of the further condenser unit (25') and its suction roller (32). The superimposed fiber webs (6,6') are compressed together at the feed-side accumulation point (26') on the suction roller (32), whereby the fibers in both fiber webs (6,6')be reoriented. The outgoing fiber web conveyor (41) can be formed by the infeed belt (42) of the consolidation device (4). The depositing point is designed, for example, in the manner described above as a transfer point (18') with a transfer-side orientation unit (22'). Figure 14 also shows a fiber treatment plant (1) with two fiber web generators (2, 2') of type C, which are arranged and lined up one behind the other in the transport direction (7). The number of fiber web generators (2, 2') can also be greater. The fiber web generators (2, 2') are each designed, for example, as a card of the carding machine according to Figures 1 and 3. The fiber orientation device (3) of the fiber treatment plant (1) comprises an intermediate-side orientation unit (23) and a transfer-side orientation unit (22'). These can be designed and function in the manner described above. The fiber orientation device (3) may also comprise one or more producer-side orientation units(22) and / or one or more other transfer-side orientation units (22') and / or a consolidation-side orientation unit (24). The intermediate orientation unit (23) is arranged, for example, in the area between the first fiber web producer (2) and the consolidation device (4). It is assigned to the first fiber web producer (2) and is designed, for example, structurally and functionally according to Figures 1 and 6. It has several, for example two, condenser units (25, 25') with several, for example two, rotating suction rolls (31, 32) and preferably only feed-side accumulation points (26, 26') as well as an intermediate conveyor (34) arranged between the suction rolls (31, 32). The outgoing fiber web conveying means (41) can be formed by the infeed belt (42) of the consolidation device (4) or another transport means. It extends beneath the elevated fiber web generator (2'). The intermediate orientation unit (23) and its condenser units(25, 25') act on the produced fiber web (6) of the first fiber web generator (2) to compress and reorient the fibers. The further fiber web generator (2') following in the transport direction (7) is designed, for example, as a card or roller according to Figures 1 and 3. It can comprise one or more generator-side orientation units (22). The transport means (19), in particular the discharge belt, is guided downwards at the end to the discharge fiber web conveyor means (41) of the intermediate orientation unit (23) and deposits the produced fiber web (6') on the discharge fiber web conveyor means (41) and the fiber web (6) there. The transfer-side orientation unit (22') is assigned to a further fiber web generator (2'). The transfer point (18') is arranged, for example, between the incoming transport means (19) and the discharge fiber web conveyor means (41). The rotating suction roller (29') with the stationary suction sector (30) is arranged above the outgoing fiber web conveyor(41), wherein the accumulation point (26") is formed between the incoming transport means (19) and the rotating suction roller (29'). Here, the produced fiber web (6') is compressed and the fibers are reoriented in (CD). The incoming transport means (19) is arranged at a disturbance-free distance above the fiber web conveyor (41) and the fiber web (6) there. In addition, a accumulation point can be formed between the rotating suction roller (29') with the corresponding suction sector (30) and the outgoing fiber web conveyor (41). Here, if necessary, both superimposed fiber webs (6, 6') can be compressed together and their fibers reoriented in (CD). Figure 15 shows a fiber treatment plant (1) with several, e.g. two, fiber web generators (2, 2") of type C and P, which are arranged and lined up one behind the other in the transport direction (7). The configuration is e.g. CP, but can also be different depending on the type and number of fiber web generators (2.2"). TheThe fiber orientation device (3) of the fiber treatment plant (1) comprises, for example, an intermediate orientation unit (23) arranged in the area between the first fiber web producer (2) of type C and the consolidation device (4). The intermediate orientation unit (23) is arranged in front of the deposition point of the wet-laid fiber web (6") of the further fiber web producer (2") of type P. The intermediate orientation unit (23) with the several condenser units and the several preferably only feed-side accumulation points acts on the fiber web (6) and can be designed according to one of the aforementioned embodiments. However, it is also possible to design the intermediate orientation unit (23) according to Figure 5 with a single suction roll (31) and, if necessary, to provide one or more producer-side orientation units (22). The outgoing fiber web conveying means (41) of the intermediate orientation unit (23) can be supplied from the infeed belt (42) of theConsolidation device (4) or by another transport means. It can extend beneath the elevated fiber web generator (2"). The wet-laid fiber web (6") can be placed onto the outgoing fiber web conveyor (41) and the dry-laid fiber web (6) there. The wet-laid fiber web (6") is not compressed, for example, and the fibers retain their alignment and are not reoriented. The fiber alignment in (MD) and (CD) can, if necessary, take place in the fiber web generator (2") or outside and, if necessary, in another way. The superimposed dry and wet-laid fiber webs (6, 6") can be consolidated together. Figure 16 shows a fiber treatment plant (1) with several, e.g. three, fiber web generators (2, 2") of type C and P, which are arranged and lined up one behind the other in the transport direction (7). The configuration is e.g. CPC, but can also be different depending on the type and number of fiber web generators (2.2"). The shownThe first configuration part CP of the configuration CPC can correspond to the previously described example of Figure 15. The fiber orientation device (3) of the fiber treatment plant (1) comprises, for example, several, for example two, intermediate orientation units (23), each arranged in the area between one of the fiber web producers (2) of type C and the consolidation device (4). The intermediate orientation unit (23) assigned to the first fiber web producer (2) can be designed and arranged in the manner described above according to Figure 15. The arrangement and design of the fiber web producer (2") of type P can also correspond to Figure 15. The further intermediate orientation unit (23) assigned to the further fiber web producer (2) of type C can also be designed according to one of the aforementioned embodiments of Figures 1 to 5. It is, for example, arranged elevated and acts on the dry-laid fiber web (6'). The furtherFiber web producer (2) of type C deposits its fiber web (6') onto the fiber webs (6, 6") and, if applicable, onto the outgoing fiber web conveyor (41) of the first intermediate orientation unit (23). A transfer-side orientation unit (22') can be arranged at the depositing point or transfer point (18'). The transfer point (18') is arranged, for example, between a outgoing fiber web conveyor (41) of the further intermediate orientation unit (23) and the outgoing fiber web conveyor (41) of the first intermediate orientation unit (23). The transfer-side orientation unit (22') can be designed in the manner described above. In a modified embodiment, the further intermediate orientation unit (23) can be omitted, while the transfer-side orientation unit (22') is retained. In addition, in all embodiments, one or more producer-side orientation units (22) may be present. A compressionthe wet-laid fiber web (6") can be omitted as in Figure 15. The superimposed dry and wet-laid fiber webs (6, 6", 6') are then consolidated together. Figures 1, 5, 6 and 8 illustrate a preferred embodiment of the consolidating device (4) in a design as a spunlacing device. The consolidating device (4) has a frame (70) with a consolidation device (49) and a controlled-driven feeding transport means (42), in particular a feed belt. The consolidation device (49) comprises a multiple arrangement of consolidation units (50, 57, 60) for consolidating the fiber web (6). The transport means (42) is designed, for example, as an endless, circulating and controlled-driven transport belt. This belt can be fluid-permeable, in particular air and water-permeable. The transport means (42) can provide the above-described outgoingForm a transport means (41). The transport means (41, 42) can extend beyond the consolidation device (49) against the transport direction (7). In this upstream area, for example, a pre-moistening device (45) and a pre-consolidation device (46) are arranged, each acting on the fiber web (6) transported by the transport means (41, 42). They can each comprise an injector (47, 48) which directs a fluid jet, in particular a water jet, under pressure against the fiber web (6). A suction device can be arranged on the other side of the relevant upper run of the transport means (41, 42) and opposite the relevant injector (47, 48) in the jet direction. The injectors (47, 48) are preferably arranged above the fiber web (6) and the transport means (41, 42) and preferably extend across the entire width of the fiber web (6). The injector (47) for pre-humidification can produce a curtain of several fluid jets with arelatively low pressure and moisten the fiber web (6). The one or more injectors (48) for pre-consolidation each emit a curtain of several fluid jets with a significantly higher pressure. By these fluid jets, the fibers in the fiber web (6) are entrained in the jet direction, displaced, and entangled with each other, whereby the fiber web (6) is thereby consolidated and consolidated, as well as reduced in thickness and compacted. The entire consolidation and compaction process can take place in several stages. The consolidation units (50, 57, 60) each have a controlled and rotating suction roll (51, 58, 61), which preferably extends transversely across the fiber web (6) and which transports the fiber web (6) lying peripherally on the roll shell. The consolidation units (50, 57, 60) further comprise one or more injectors (55, 60) which, in the aforementioned manner, emit a fluid jet, in particular a water jet, underDirect high pressure from the outside onto the fiber web (6) resting on the rotating suction roll (51, 58, 61), thereby bringing about the aforementioned consolidation, solidification, and compaction of the fiber web (6). The emitted fluid jets penetrate the fluid-permeable roll shell and are sucked out of the hollow interior of the respective suction roll (51, 58, 61) using negative pressure. For this purpose, the respective suction roll (51, 58, 61) can, for example, have a stationary suction sector (52, 59, 62) with edge-side baffles, with the negative pressure being generated in this suction sector. The suction sector (52, 59, 62) can be segmented and have mutually delimited suction segments, which may cooperate with suction slots on the suction roll (51, 58, 61). The fiber web (6) can also be sucked in and held at the roll circumference in the area of ​​the suction sector (52, 59, 62). The first consolidation unit (50) and its suction roller (51) are arranged above and near the feeding transport means (41, 42).At the approach and transfer point (69) of the fiber web (6) between the suction roll (51) and the transport means (41, 42), an injector (55) can be arranged, which directs a curtain of fluid jets, in particular water jets, from below against the suction roll (51). The fluid jets penetrate the upper run of the transport means (41, 42) and the fiber web (6) resting there. The injector (55) can consolidate, harden, and compact the fiber web (6) when the fluid jets are emitted at high pressure. It can also be used solely to moisten the fiber web (6) when the pressure is reduced. The injector (55) preferably extends across the entire width of the fiber web (6). It can be rigid or movable or adjustable. As Figure 3 illustrates, the injector (55) can, for example, be pivoted, in particular about a pivot axis formed by the central roller and rotation axis of the suction roll (51). Figures 1 and 5 illustratethe transport means (41, 42) can have an adjusting device (43) comprising an adjusting means (44), e.g., a rotatable adjusting roller, which can be extended under the control of a cylinder or other adjusting means and thereby takes the upper run of the transport means (41, 42) with it. By means of the adjusting device (43), the distance and the gap dimension as well as the angle of attack of the transport means (41, 42), in particular its upper run, relative to the suction roll (51) of the first consolidation unit (50) can be set and adjusted. This can also reduce the gap. The adjustment of the injector can be carried out in accordance with the adjustment of the transport means (41, 42). The e.g., two, three or more consolidation units (50, 57, 60) can further each comprise one, two or more injectors (56), which, in the manner described above, each direct a curtain of fluid jets at high pressure from the outside against the fiber web (6) resting on the roll shell, andthereby bringing about the said consolidation and compaction of the fibrous web (6). The injectors (56) can also preferably extend over the entire width of the fibrous web (6). The consolidation device (49) can, for example, have two consolidation units (50, 57) arranged one above the other, each with a suction roll (51, 58) and injectors (56). According to Figure 3, the fibrous web (6) has an upper side (8) and a lower side (9), wherein the fibrous web (6) is turned during the transition from the first suction drum (51) to the counter-rotating second suction drum (57). At the transition, it can be spread out and stretched in the width direction by a spreader means (71), for example a rotating and optionally controlled spreader roll. A spreader roll can, for example, be designed as a cambered roll or a banana roll. The fiber web (6) rests on the suction drum (51) with its upper side and on the second suction roller (57) with its underside (9).As a result, the fiber web (6) is exposed to fluid jets on both sides in the consolidation units (50, 57) and consolidated or solidified. In this variant, the consolidated fiber web (6) can be fed to a subsequent further treatment (5). Figure 1 shows this arrangement. The further treatment (5) can comprise, for example, a dryer and optionally further devices, e.g. a cutting device, a winding device or the like. Figure 1 illustrates the consolidation-side orientation unit (24) and the formation of a accumulation point (26) at the transfer point (69) and in the gap between the transport means (41, 42) and the suction roll (51) with fiber reorientation in (CD). The circumferential and transport speed (V51) of the suction roll (51) as the outgoing fiber web transport means is lower than the transport speed (V42) of the incoming transport means (41, 42). Figure 6 shows another embodiment of the solidification device (4), in which a thirdConsolidation unit (60) with suction roll (62) and injectors (56) is provided. A turning device (63) is arranged between the second and third consolidation units (57, 60). As a result, the fiber web (6) coming from the second consolidation unit (57) can be applied optionally with its upper side (8) or its lower side (9) to the casing of the suction roll (61) of the downstream third consolidation unit (60). The direction of rotation and drive of the suction roll (61) can be changed accordingly. The turning device (63) comprises feed-side deflection rolls (64, 65) which are designed and arranged such that, depending on the deflection roll selection, the fiber web (6) of the suction roll (61) can be fed from different directions and on different sides of its circumference. The fiber web (6) is fed, for example, via the deflection roll (64) to the adjacent roll side and the upper side of the suction roll (61). When the other pulley (65) is equipped with the pulley (6c)The fiber web designated is fed to the right-hand side of the roller and the underside of the suction roller (61). Otherwise, one or more injectors (56) of the type described above are also arranged in this consolidation unit (60). The turning device (63) further comprises deflection units (66, 67) on the discharge side, which are arranged spatially and functionally separately. With these deflection units (66, 67), the fiber web (6) is discharged from the suction roller (61) of the third consolidation unit (60) in different directions and on different sides of its roller circumference after consolidation. The deflection units (66, 67) comprise rotating and rotatably driven deflection and transport rollers, which drive and guide the fiber web (6, 6') in question. The deflection units (66,67) are, for example, coordinated with one another in such a way that they end at a common discharge means (68), e.g. an endless and controlled circulating discharge belt, and here the respective fiber web (6,6')Figure 8 illustrates a section through the consolidation device (4) and a special design of the suction rolls (51, 58). These each have a stationary suction box (53) in their hollow interior, which is coupled to a suction device and which carries one or more suction nozzles (54) on the periphery, which are designed as nozzle attachments. The suction nozzles (54) are arranged in a number and position corresponding to the injectors (56), whereby they are aligned against the jet direction of the associated injector (56). The suction nozzles (54) can be adjustable. They can also rest springily and tightly against the suction roll shell with their suction mouth. The suction nozzles (54) are subjected to negative pressure from the hollow suction box (53) and suck in the incoming fluid jets. The suction pressure allows both the introduced fluids and any false air to be removed from the hollow suction box (53). Modifications of the shown andThe described embodiments are possible in various ways. In particular, the features of the various embodiments and the modifications mentioned can be combined or exchanged with one another in any suitable manner within the scope of the claims. LIST OF REFERENCE SYMBOLS 1 Fiber treatment plant 2 Fiber web producer, carding machine 2' Fiber web producer, carding machine 2" Fiber web producer, wet-laid machine 3 Fiber orientation device 4 Bonding device, spunlacing 5 Further treatment, dryer 6 Fiber web, dry-laid 6' Fiber web, dry-laid 6" Fiber web, wet-laid 6a Partial fiber web 6b Partial fiber web 7 Transport direction 8 Top side 9 Bottom side 10 Machine frame 11 Reel 12 Fiber web 13 Transfer roll 14 Doffer roll 14' Doffer roll 15 Condenser roll 15' Condenser roll 16 Discharge roll 16' Discharge roll 16" Discharge roll 17 Roll covering 18 Discharge point 18' Transfer point 19 Transport means, discharge belt, card belt 19' Transport means, further conveying, conveyor belt 20Cleaning device, brush 21 Feed unit 22 Orientation unit, producer side 22' Orientation unit, transfer side 23 Orientation unit, intermediate side 24 Orientation unit, bonding side 25 Condenser unit 25' Condenser unit 26 Accumulation point 26' Accumulation point 26" Accumulation point 27 Web accumulation 28 Suction device 29 Suction roller 29' Suction roller 30 Suction sector 31 Suction roller 32 Suction roller 33 Suction sector 34 Intermediate conveyor 35 Linear conveyor, intermediate belt 36 Intermediate roller 37 Intermediate roller 38 Transfer means 38' Transfer belt 38" Transfer roller 39 Suction device 40 Incoming transport means, card sliver 41 Outgoing transport means, spunlacing belt 42 Transport means, infeed belt 43 Adjusting device 44 Adjusting means, adjusting roller 45 Pre-moistening device 46 Pre-bonding device 47 Pre-moistening injector 48 Pre-consolidation injector 49 Consolidation device 50 First consolidation unit 51 Suction roller 52 Suction sector 53 Suction box 54 Suction nozzle 55 Injector 56Injector 57 Consolidation unit, second 58 Suction roll 59 Suction sector 60 Consolidation unit, third 61 Suction roll 62 Suction sector 63 Turning device 64 Deflection roller 65 Deflection roller 66 Deflection unit 67 Deflection unit 68 Discharge device, discharge belt 69 Transfer point 70 Frame 71 Spreading device 72 Roll shell 73 Cavity 74 Tangential separation point 75 Sector limitation, sector wall 75' Sector limitation, sector wall 76 Suction device 77 Suction pipe 78 Suction opening α Limitation angle β Sector angle V11-V42 Transport speed

Claims

PATENT CLAIMS Fiber treatment system (1) for a moving fiber web (6, 6', 6") comprising a fiber web producer (2), in particular a carding machine or carding machine, a bonding device (4), in particular a spunlacing device, and a fiber orientation device (3) having at least one orientation unit (22, 23, 24) comprising at least one condenser unit (25) designed to accumulate the moving fiber web (6, 6') at a accumulation point (26) between fiber web conveying means driven in a controlled manner at different transport speeds and, in the process, to reorient fibers in the fiber web (6, 6') from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD), wherein at the accumulation point (26) the fiber web conveying means feeding the fiber web (6, 6') has a higher transport speed than the fiber web conveying means discharging it, characterized in thatthat the fiber orientation device (3) comprises an intermediate orientation unit (23) arranged in the region between the fiber web producer (2) and the consolidation device (4), which has a plurality of condenser units (25, 25') arranged one behind the other in a transport direction (7) of the fiber web (6) and having a plurality of accumulation points (26, 26'). Fiber treatment plant according to claim 1, characterized in that in the intermediate orientation unit, one fiber web conveying means is designed as a rotating suction roller (31, 32) and another fiber web conveying means as an adjacent, feeding transport means and / or as a discharge transport means, wherein preferably only one accumulation point (26) is formed between the rotating suction roller (31, 32) and the feeding transport means. Fiber treatment plant according to claim 1 or 2, characterized in that the condenser units (25, 25') of the intermediate orientation unit (23) have several, in particular two, rotating suction rollers (31, 32) and an intermediate conveyor (34) arranged therebetween and / or a rotating suction roller (31) and two or more rotating, preferably downstream, intermediate rollers (36, 37). Fiber treatment plant according to claim 3, characterized in that the intermediate conveyor (34) comprises a linear conveyor (35), in particular a continuously controllably driven endless intermediate belt, and / or a rotating, controllably driven intermediate roller (36).Fiber treatment plant according to claim 1, 2, 3 or 4, characterized in that the intermediate orientation unit (23) comprises, on the feed side, an adjacent, incoming transport means (40), in particular a feed belt, and, on the discharge side, an adjacent, outgoing transport means (41), in particular a discharge belt. Fiber treatment plant according to one of claims 3 to 5, characterized in that the one first condenser unit (25) has a storage point (26), wherein the one outgoing fiber web conveying means is guided by a first rotating suction roll. (31) and the other feeding fiber web conveying means is formed by an adjacent feeding transport means (40), in particular a feed belt, and that a further condenser unit (25') has a storage point (26'), wherein the one discharging fiber web conveying means is formed by a further rotating suction roll (32) and the other feeding fiber web conveying means is formed by the intermediate conveyor (34). Fiber treatment plant according to claim 6, characterized in that the rotating suction roll (31) of the one first condenser unit (25) is adjustable or set to a lower transport speed than the feeding transport means (40), and that the rotating suction roll (32) of the further condenser unit (25') is adjustable or set to a lower transport speed than the intermediate conveyor (34).Fiber treatment system according to claim 7, characterized in that the intermediate conveyor (34) is adjustable or set to a lower, equal, or higher transport speed than the rotating suction roll (31). Fiber treatment system according to claim 7 or 8, characterized in that the discharge transport means (41) adjacent to the further condenser unit (25') is adjustable or set to a lower, equal, or higher transport speed than the rotating suction roll (32). Fiber treatment plant according to claim 3, characterized in that the condenser units (25, 25') comprise a rotating suction roll (31) and two or more rotating intermediate rolls (36, 37), as well as an adjacent feeding transport means (40) on the feed side and an adjacent discharging transport means (41) on the discharge side and, optionally, a transfer means (38) on the discharge side. Fiber treatment plant according to claim 10, characterized in that a first condenser unit (25) has a storage point (26), wherein the condenser unit (25) comprises a rotating suction roll (31) and, adjacent thereto, a feeding transport means (40) and a first rotating intermediate roll (36), wherein a further condenser unit (25') comprises the rotating first intermediate roll (36) and a further rotating intermediate roll (37) adjacent thereto, as well as the discharging transport means (41) adjacent thereto.Fiber treatment plant according to claim 11 or 12, characterized in that the transfer means (38) is arranged above the discharge transport means (41) and optionally at least partially above the further rotating intermediate roller (37), wherein the transfer means (38) is designed as an endless, controlled, circulatingly driven and rear-suctioned transport belt (38') and / or as a suction roller (38"). Fiber treatment plant according to claim 10, 11 or 12, characterized in that the rotating suction roller (31), the two or more rotating intermediate rollers (36, 37) and the discharge transport means (41) and optionally the. Transfer means (38) form controlled, driven fiber web conveying means, which can have the same or different transport speeds. Fiber treatment plant according to claim 13, characterized in that the rotating suction roll (31) of the first condenser unit (25) is adjustable or set to a lower transport speed than the feeding transport means (40), and in that the rotating second intermediate roll (37) of the further condenser unit (25') is adjustable or set to a lower transport speed than the first rotating intermediate roll (36). Fiber treatment plant according to claim 14, characterized in that the first rotating intermediate roll (36) is adjustable or set to a lower, the same, or a higher transport speed than the rotating suction roll (31).Fiber treatment system according to claim 14 or 15, characterized in that the rotating second intermediate roller (37) is adjustable or set to a lower transport speed than the first rotating intermediate roller (36). Fiber treatment system according to claim 14, 15 or 16, characterized in that the discharge transport means (41) is adjustable or set to a lower, equal, or higher transport speed than the rotating second intermediate roller (37). 18.) Fiber treatment system according to one of claims 11 to 17, characterized in that the outgoing transport means (41) is adjustable or set to a lower transport speed than the transfer means (38). 19.) Fiber treatment system according to one of claims 11 to 18, characterized in that the transfer means (38) and the rotating second intermediate roller (37) are adjustable or set to substantially the same transport speed. 20.) Fiber treatment system according to one of claims 3 to 19, characterized in that the rotatably mounted and driven suction roller (31, 32) of a condenser unit (25, 25') is arranged, preferably partially recessed, in a gap formed between a supply transport means (19, 40) and a discharge transport means (41, 42) or an intermediate conveyor (34).) Fiber treatment plant according to claim 20, characterized in that the intermediate conveyor (34) is arranged on a rotating and driven suction roll (31, 32) of a condenser unit (25, 25') at the same height as or lower than the feeding transport means (19, 40) and, if appropriate, the discharge transport means (41, 42) is arranged at the same height as or lower than the intermediate conveyor (34). 22.) Fiber treatment plant according to claim 20 or 21, characterized in that the suction roll (31, 32) of a condenser unit (25, 25'). a cylindrical shape, an inner cavity (73), and a perforated, rotatably mounted and driven roller shell (72) with radial through-openings, wherein the suction roller (31, 32) comprises a suction sector (33) that is arranged stationary in the inner cavity (73) and sealed off in the circumferential direction of the roller, preferably adjustable, which is open toward the roller shell (72) and connected to a suction device (76). Fiber treatment system according to claim 22, characterized in that the suction sector (33) is arranged on the underside of the suction roller (31, 32) and points downwards.Fiber treatment plant according to claim 23, characterized in that the circumferentially delimited suction sector (33) ends in the transport direction (7) at a tangential detachment point (74) or shortly before, at which point the fiber web (6) sucked in the region of the suction sector (33) leaves the rotating roll shell (72) of the suction roll (31, 32) tangentially and in a straight direction toward the subsequent discharge transport means (41) or an intermediate conveyor (34). Fiber treatment plant according to claim 22, 23 or 24, characterized in that a front, preferably radial, sector boundary (75) of the suction sector (33) in the transport direction (7) is arranged at a boundary angle α of 45° or less with respect to a vertical through the suction roll center. Fiber treatment plant according to claim 22, 23, 24 or 25, characterized in that the circumferentially limited suction sector (33) has a sector angle β of 90° or more, in particular up to 120°, between circumferential sector boundaries (75). Fiber treatment plant according to one of the preceding claims, characterized in that the fiber orientation device (3) has a producer-side orientation unit (22) arranged on the fiber web producer (2, 2'), in particular the carding machine or carding machine (2), which comprises at least one condenser unit (25) which is arranged at a delivery point (18) of the fiber web (6, 6') of the fiber web producer (2, 2'), wherein the one feeding fiber web conveying means is designed as a rotating delivery roller (16, 16') and the other fiber web conveying means is designed as a discharge transport means (19), in particular a discharge belt, which is preferably suctioned at the delivery point (18).Fiber treatment system according to claim 27, characterized in that the discharge transport means (19) is adjustable or set to a transport speed equal to or lower than that of the rotating discharge roller (16, 16'). Fiber treatment system according to claim 27 or 28, characterized in that the rotating discharge roller (16, 16') is designed as a suction roller (29). Fiber treatment plant according to one of the preceding claims, characterized in that the fiber orientation device (3) has a transfer-side orientation unit (22') which is arranged at a transfer point (18') at which a fiber web (6, 6') produced by a fiber web producer (2, 2') is transferred from a discharge transport means (19), in particular a discharge belt, of the fiber web producer (2, 2') to a further-conveying transport means (19'), in particular a conveyor belt, wherein the transfer-side orientation unit (22') comprises a condenser unit (25) at the transfer point (18'), wherein one supplying fiber web conveying means is designed as a rotating discharge roller (16"), in particular a rotating suction roller (29'), and the other discharged fiber web conveying means is designed as a further-conveying transport means (19'), in particular a conveyor belt.Fiber treatment plant according to one of the preceding claims, characterized in that the fiber orientation device (3) comprises a consolidation-side orientation unit (24) arranged on the consolidation device (4), in particular a spunlacing device. Fiber treatment plant according to one of the preceding claims, characterized in that the fiber treatment plant (1) has a plurality of fiber web producers (2, 2', 2"), in particular cards or carding machines (2), arranged one behind the other in a transport direction (7), each producing a fiber web (6, 6', 6"), wherein the fiber treatment plant (1) comprises a fiber orientation device (3) with at least an intermediate orientation unit (23). Fiber treatment plant according to claim 32, characterized in that one or more fiber web producers (2, 2') produce a dry-laid fiber web (6, 6') and optionally one or more fiber web producers (2") produce a wet-laid fiber web (6").Fiber treatment plant according to claim 32 or 33, characterized in that an intermediate orientation unit (23) comprises a first condenser unit (25) with a suction roller (31) which is arranged downstream of a first fiber web producer (2) in the transport direction (7), and a further condenser unit (25') with a suction roller (32) which is arranged downstream of a further fiber web producer (2') in the transport direction (7), wherein the intermediate conveyor (34) arranged between the suction rollers (31, 32) extends below the further fiber web producer (2'), wherein a depositing point for the fiber web (6') produced by the further fiber web producer (2') is preferably arranged on the intermediate conveyor (34) upstream of the further condenser unit (25').Fiber treatment plant according to claim 32, 33 or 34, characterized in that the fiber treatment plant (1) comprises a plurality of intermediate orientation units (23), wherein a plurality of fiber web producers (2, 2') are each followed by an intermediate orientation unit (23). 36.) Fiber treatment plant according to one of claims 32 to 35, characterized in that the fiber orientation device (3) comprises an intermediate orientation unit (23) downstream of a fiber web producer (2) and a preferably downstream transfer-side orientation unit (22') downstream of another fiber web producer (2'). 37.) Fiber treatment plant according to one of claims 32 to 36, characterized in that the fiber orientation device (3) comprises one or more producer-side orientation units (22) and / or one or more transfer-side orientation units (22') and / or a consolidation-side orientation unit (24). 38.) Fiber treatment plant according to one of the preceding claims, characterized in that a fiber web producer (2, 2') is designed as a carding machine or carding machine and has a controlled driven rotating roller configuration which comprises - a drum (11), - a transfer roller (13), - at least one doffer roller (14, 14'), - at least one condenser roller (15, 15') - at least one discharge roller (16, 16') and - a discharge, in particular discharge belt, with a suction device (28) arranged on the transport means (19) and acting on the fiber web (6) at the discharge point (18) between the discharge roller (16, 16') and the transport means (19). (UA25). 39.) Fiber treatment plant according to one of claims 1 to 38, characterized in that the consolidation device (4) is designed as a spunlacing device, which comprises a controlled-driven feeding transport means (42), in particular a feed belt, and a multiple arrangement of consolidation units (50, 57, 60) for consolidating the fiber web (6), wherein the consolidation units (50, 57, 60) each have a controlled-driven rotating suction roll (51, 58, 61) for transporting the fiber web (6) resting peripherally on the roll shell and at least one optionally adjustable injector (55, 56) which is designed to direct a fluid jet, in particular a water jet, under high pressure from the outside onto the rotating suction roll (51, 58, 61) and onto the resting fiber web (6) for its consolidation.) Fiber treatment plant according to claim 39, characterized in that the consolidation device (4) comprises a turning device (63) between two consolidation units (57, 60), which is designed to apply the fiber web (6) optionally with its upper side (8) or its lower side (9) to the casing of the suction roll (61) of the downstream consolidation unit (60), wherein the direction of rotation and drive of the suction roll (61) can be changed accordingly. 41.) Fiber treatment plant according to claim 40, characterized in that the turning device (63) comprises feed-side deflection rollers (64, 65) for the fiber web (6), which are designed and arranged such that the fiber web (6) of the suction roll (61) of the downstream consolidation unit (60) consists of different. directions and on different sides of its circumference. Fiber treatment plant according to claim 40 or 41, characterized in that the turning device (63) has spatially and functionally separate, discharge-side deflection units (66, 67) with which the fiber web (6), after consolidation, can be discharged from the suction roll (61) of the downstream consolidation unit (60) in different directions and on different sides of its circumference. Fiber treatment plant according to one of claims 39 to 42, characterized in that the feeding transport means (42) has an adjusting device (43) which is designed to set and adjust the distance and the gap dimension as well as the angle of attack of the transport means (42) relative to the suction roll (51) of the first consolidation unit (50).Fiber treatment system according to one of claims 39 to 43, characterized in that an injector (55) is preferably adjustable, in particular pivotable, at a transfer point (69) of the fiber web (6) from the supplying transport means (42) to the suction roll (51) of the first consolidation unit (50). Fiber treatment system according to claim 44, characterized in that the injector (55) is designed to consolidate the fiber web (6). 46.) Fiber treatment system according to one of claims 39 to 45, characterized in that a moistening device (45) and / or a pre-consolidation device (46) for the fiber web (6) is arranged on the feeding transport means (42) upstream of the first consolidation unit (50). 47.) Fiber treatment system according to one of claims 39 to 46, characterized in that a suction roll (51, 58, 61) has a definable suction sector (52, 59, 62) in the support area of ​​the fiber web (6). 48.) Fiber treatment system according to one of claims 39 to 47, characterized in that a suction box (53) with one or more preferably adjustable suction nozzles (54) is arranged in the hollow interior of a suction roll (51, 58, 61), wherein the suction nozzle(s) (54) are aligned with an associated injector in its jet direction and rest resiliently and tightly against the suction roll shell. 49.) Fiber treatment plant according to one of claims 39 to 48, characterized in that an orientation unit (24) with a condenser unit (25) is arranged at a transfer point (69) of the fiber web (6) from the feeding transport means (42) to the suction roller (51) of the first consolidation unit (50), which condenser unit is designed to accumulate the moving fiber web (6) at a storage point (26) between fiber web conveying means driven in a controlled manner and in the process to reorient fibers in the fiber web (6) from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD), wherein the fiber web conveying means from the feeding. Transport means (42) and by the suction roller (51) of the first consolidation unit (50), wherein the suction roller (51) is adjustable or set to a lower transport speed than the transport means (42). 50.) Method for producing a consolidated fiber web (6) with a fiber treatment plant (1) according to one of claims 1 to 49, wherein by means of a fiber orientation device (3) which has at least one orientation unit (22, 22', 23, 24) which comprises at least one condenser unit (25), the moving fiber web (6, 6') is accumulated at a accumulation point (26) between fiber web conveying means driven in a controlled manner and at different transport speeds, and fibers in the fiber web (6) are reoriented from a fiber orientation in the longitudinal direction (MD) to a fiber orientation in the transverse direction (CD), wherein at the accumulation point (26) the fiber web (6,6') feeding fiber web conveyor means has a higher transport speed than the discharging fiber web conveyor means, characterized in that the strength and the elongation of the consolidated fiber web in (MD) and (CD) are adjusted at an intermediate orientation unit (23) with several condenser units (25, 25') arranged one behind the other in a transport direction (7) of the fiber web (6, 6') with several accumulation points (26, 26'), wherein the intermediate orientation unit (23) is arranged in the region between the fiber web generator (2, 2') and the consolidation device (4). 51.) Method according to claim 50, characterized in that the strength and the elongation of the consolidated fiber web (6) in (MD), and (CD) are also adjusted by a producer-side orientation unit (22) arranged on the fiber web producer (2, 2'), in particular a carding machine or carding machine. Method according to claim 50 or 51, characterized in that the strength and the elongation of the consolidated fiber web (6) in (MD) and (CD) are also adjusted by a transfer-side orientation unit (22') at a transfer point (18') between a discharge transport means (19), in particular a discharge belt, of the fiber web producer (2, 2') and a further conveying transport means (19'), in particular a conveyor belt. Method according to claim 50, 51 or 52, characterized in that the strength and the elongation of the consolidated fiber web (6) in (MD) and (CD) are also adjusted by a consolidation-side orientation unit (24) arranged on the consolidation device (4).

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