EP3066240B1 - Vliesleger und betriebsverfahren - Google Patents

Vliesleger und betriebsverfahren Download PDF

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Publication number
EP3066240B1
EP3066240B1 EP14805198.0A EP14805198A EP3066240B1 EP 3066240 B1 EP3066240 B1 EP 3066240B1 EP 14805198 A EP14805198 A EP 14805198A EP 3066240 B1 EP3066240 B1 EP 3066240B1
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EP
European Patent Office
Prior art keywords
carriage
woven fabric
laying device
carriages
linear motor
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Application number
EP14805198.0A
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German (de)
English (en)
French (fr)
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EP3066240A1 (de
Inventor
Andreas Meier
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Autefa Solutions Germany GmbH
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Autefa Solutions Germany GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above

Definitions

  • the invention relates to a nonwoven layer and an operating method with the features of the main method and device claim.
  • the DE 25 42 274 B1 shows a fleece layer, which is designed as a carriage layer with an uppercarriage and an undercarriage (main carriage), the two carriages each having their own conveyor belt running around the carriage and moving in opposite directions above a trigger belt.
  • the undercarriage is driven by a linear motor, which is based on eddy current fields and is formed by inductor combs and an opposing, fixed flat rail made of an electrically conductive material.
  • the uppercarriage is driven by the undercarriage and its movement by means of a derived chain drive.
  • the EP 0 609 907 A2 is concerned with a fleece layer, which has main carriages moving in opposite directions, which are kinematically coupled to each other by a chain or a rope and to a tensioning carriage.
  • the main and tensioning carriages are connected by conveyor belts, which are guided via a stationary deflection in the machine frame.
  • the main carriages can be driven with a rotary drive via the chain or with an electronically controlled and not described linear drive.
  • the Indian DE 26 09 396 A1 The fleece layer shown has moving main cars in the form of an upper storage car and a lower laying car as well as a tension car.
  • a conveyor belt is only on Storage trolley and its boom arranged. Another conveyor belt runs over the three cars.
  • the three carriages are coupled by a timing chain, the laying carriage being driven and the other carriages being carried along accordingly by the coupling.
  • the laying carriage can be driven by a rotationally driven carriage train chain or by a linear motor (not described in more detail).
  • Another fleece layer is from the EP 1 828 453 B1 known. It is designed as a stacker and has two linearly movable main carriages and two auxiliary carriages designed as tensioning carriages and also linearly movable. There are also two endless conveyor belts, which are guided over deflection rollers on the aforementioned wagons.
  • the main carriages are each equipped with their own carriage drive and can move in the same direction relative to each other. In practice, these carriage drives consist of a rotary drive motor and a toothed belt or cable transmission for transmitting the motor rotation to the respective main carriage and for converting the drive rotation into a linear movement.
  • the tension wagons are each connected to a main wagon by means of towing ropes.
  • the EP 1 010 785 A2 and EP 1 010 786 A2 show a similar fleece layer, which has a larger laying width and a larger number of auxiliary wagons.
  • One or more auxiliary carriages can be designed as support carriages for a horizontally spread lower or upper run of a conveyor belt.
  • the invention solves this problem with the features in the main method and device claim.
  • the design of one or more car drives of the fleece layer with an electric linear motor has various advantages. On the one hand, the dynamics, in particular the driving speed and the acceleration capacity of the vehicle drive and the connected vehicle are improved. In addition, inertia and vibrations can be reduced.
  • An electric linear motor is characterized by a linear stator and a rotor mounted and guided thereon, in particular a slide.
  • the stator can have a finite and arbitrarily variable length that can be adapted to the respective fleece layer dimensions. It is preferably mounted stationary in the frame of the fleece layer, which can be done in particular at the front ends of the stator. It advantageously extends in the direction of movement of the driven fleece laying carriage.
  • the electric linear motor and its stator can form a supporting part of the frame.
  • the runner, in particular slide can be connected to the driven carriage. In particular, it can be integrated in the carriage, in particular in its carriage frame.
  • An electric linear motor can be used to drive a cart of the fleece layer directly and in its intended direction of movement.
  • a gearbox for drive transmission in particular a cable, belt or chain drive or the like, which is connected between the carriage and the carriage drive, can be dispensed with.
  • the positioning and repetition accuracy are very high.
  • the control and regulating behavior of the vehicle control or linear motor connected to a higher-level control is improved.
  • An electric linear motor reacts faster and more sensitively than control to control commands.
  • a carriage can be connected to only one or to several, in particular two, electric linear motors and, if necessary, can also be guided and supported thereon.
  • the electric linear motors are suitable among themselves tax related. This can be a coupling and a synchronization to synchronism. If necessary, however, kinematic differences can also be set in a targeted manner if a specific carriage behavior is desired in the fleece laying operation, for example a deliberate inclination of one or more deflection means arranged on a carriage for a conveyor belt.
  • Electrostatic adhesion can be achieved here, in particular by electric field formation.
  • the electric field can be fed by the electric linear motor.
  • a carriage drive with one or more electric linear motors can be provided as original equipment in a brand-new fleece layer. Alternatively, it can be retrofitted to an existing fleece layer.
  • the invention relates to a nonwoven layer (1) and a method for its operation.
  • FIG. 1 to 4 show a fleece layer (1) in various exemplary variants.
  • the nonwoven layer (1) is designed, for example, as a cross-layer which, on a discharge conveyor (5), carries a fiber web (3) fed on a feed conveyor (4). with folding and forming a multi-layer fleece (32).
  • the discharge conveyor (5) and its conveying direction are oriented transversely or obliquely to the conveying direction (33) of the fiber web (3) supplied.
  • the fibrous web (3) can be single-layer or multi-layer. It is provided by an upstream pile generator (not shown), which e.g. is designed as a card or card.
  • the fleece layer (1) can also be preceded by one or more additional devices, e.g. a pile storage, a profile-forming device, in particular a drafting device, for the fiber pile (3) or the like coming from the pile producer.
  • the discharge conveyor (5) is in turn connected to a device for the further transport or further treatment of the multi-layer fleece (32).
  • a device for the further transport or further treatment of the multi-layer fleece (32) can e.g. a nonwoven bonding device, in particular a needle machine, a water jet bonding device, a thermobonding device or the like.
  • the fleece (32) can alternatively be processed further in another way, e.g. wound up and / or with additional layers of further fibers, e.g. Meltblown fibers.
  • the feed conveyor (4) and / or the discharge conveyor (5) can be designed as a belt conveyor, e.g. have an endlessly guided and driven conveyor belt.
  • the fleece layer (1) has a frame (2) and several carriages (10 - 16) provided for transporting the fiber pile (3) as well as several pile conveyors (7, 8), for example conveyor belts, guided over the carriages (10 - 16). At least some of the carriages (10-16) are guided in a linearly movable manner and are driven by a carriage drive (18).
  • the number, design, arrangement and function of the wagons (10-16) in a fleece layer (1) can be different.
  • the carriage drive (18) has an electric linear motor (19). It can also have a plurality of electric linear motors (19). These can e.g. be connected in parallel and drive the car (10 - 16) together. Such a linear motor (19) can also be used to guide and support a carriage (10 - 16).
  • the carriage drives (18) or their electric linear motors (19) of several carriages (10 - 16) can be coupled in terms of control technology and coordinated with one another.
  • the one or more electric linear motors (19) form a direct drive for the relevant carriage (10 - 16).
  • the carriage (10 - 16) is connected directly, preferably integrally, to a movable output part, in particular a rotor (22), of an electric linear motor (19).
  • the conveyor belts (7, 8) are designed as endless, resiliently flexible belts, which are driven by belt drives (not shown) and which are driven by deflection means (36, 37, 38), e.g. freely rotatable pulleys, on the carriage (10 - 16) and possibly in the frame (2).
  • the conveyor belts (7,8) in the fleece laying variants shown are each guided over several carriages (10 - 16) and connect them. There may also be a control coupling between the belt drives and the carriage drives (18) or their linear motors (19).
  • the fleece layer (1) has in the exemplary embodiments of Figure 1 to 7 Several, in particular two main carriages (10, 11).
  • the fleece layer (1) can also have one or more auxiliary carriages (12-16).
  • the auxiliary carriage or carriages (12-16) can also interact with the conveyor belt or conveyors (7, 8). They can have the same or different functions, e.g. to support a conveyor belt run and / or to tension a conveyor belt (7,8).
  • the carriages (10-16) can make parallel reversing movements.
  • the one or more auxiliary carriages (12 - 16) can each have their own carriage drive (18) with one or more electric linear motors (19) or a mechanical drive connection (28 - 31) to another carriage, in particular a main carriage (10, 11) ,
  • a main carriage (10) is designed as an uppercarriage with a belt inlet (9) and a main carriage (11) as a laying carriage with a belt outlet (9 '). Both main carriages (10, 11) move back and forth across the discharge conveyor (5) transversely or obliquely to its conveying direction, the fibrous web (3) exiting at the belt outlet (9) of the laying carriage (11) and on the discharge conveyor (5) filed and folded over. For this purpose, the laying carriage (11) moves back and forth over the laying width (6) and in a parallel plane above the discharge conveyor (5).
  • the two conveyor belts (7, 8) are brought together at the belt infeed (9) of the main carriage or uppercarriage (10) and thereby take up the fibrous web (3) between them.
  • One conveyor belt (7) connects to or contains the feed conveyor (4), the fibrous web (3) on the conveyor belt (7) being conveyed and fed from the feed side to the belt inlet (9).
  • the conveyor belts (7, 8) run parallel to one another in close proximity and clamp the fiber web (3) between them.
  • the conveyor belts (7,8) are each deflected by a total of 180 °.
  • the conveyor belts (7, 8) diverge again and are separated from one another by means of the discharge conveyor (5) on the frame (2) on both sides Deflection means, in particular deflection rollers, led back to the superstructure (10) and to the belt inlet (9).
  • the fiber pile (3) is deflected by 180 ° on the superstructure (10) and by 90 ° on the laying carriage (11).
  • the conveyor belts (7, 8) which separate from one another and extend in opposite directions at the belt outlet (9 ') are aligned with their belt strands there essentially parallel to the top of the discharge conveyor (5) and can cover the deposited fleece (32).
  • the fleece layers (1) are designed as co-rotating layers, in which the main carriages (10, 11) execute parallel movements with the same direction of travel and different speeds and different path lengths.
  • the parallel conveyor belt sections and the fiber web (3) picked up and in particular clamped between them are guided from the upper main carriage or superstructure (10) directly to the lower main carriage or laying carriage (11).
  • a so-called short pile pass is formed here.
  • the main carriages (10, 11) always move in the same arrangement one after the other, the carriage spacing changing depending on the carriage position over the laying width (6).
  • the main carriages (10, 11) are mechanically decoupled from one another in the exemplary embodiments shown and can be moved independently. They each have their own controlled or regulated carriage drive (18) with at least one electric linear motor (19).
  • the carriage drives (18) of the main carriage (10, 11) are coupled in terms of control technology and coordinated with one another. They carry out specified and precisely defined driving movements.
  • the fleece layer (1) can have a higher-level control (40). All carriage drives (18) or their electric linear motors (19) and also further drives, e.g. the belt drives for the circulating movement of the conveyor belts (7,8), be connected.
  • the controller (40) can in turn be connected to a higher-level system controller or to the controllers of upstream or downstream devices, in particular a profile-forming device and / or a consolidation device.
  • Figure 1 shows a variant of a fleece layer (1) which, in addition to the two main carriages (10, 11), has an auxiliary carriage designed as a support carriage (12), which supports the lower run of the conveyor belt (7) coming from the belt outlet (9 ') and for this purpose an omega Has guide (35) with freely rotatable deflection rollers (37).
  • a support device can also be provided for the lower run of the other conveyor belt (8). This can be done according to Figure 1 on the superstructure (10) rigidly arranged and, for example, structurally integrated support carriage (13) with an omega guide (35) of the aforementioned type. Alternatively, there can be another independently movable support carriage.
  • the support carriage (12) shown moves back and forth over the discharge conveyor (5) in coordination with the driving movements of one or both main carriages (10, 11).
  • the support carriage (12) has its own belt drive (18) which has one or more, in particular two, electric linear motors (19) (not shown).
  • this carriage drive is equipped with a main carriage (10, 11), e.g. the superstructure (10), and its carriage drive (18) coupled for control purposes.
  • the carriage drive (18) of the support carriage (12) is preferably also connected to the controller (40).
  • the support carriage (12) can move synchronously with the uppercarriage (10), executing half paths at half the speed of the laying carriage (11).
  • the support carriage (12) is arranged between the laying carriage (11) and the opposite part of the frame (2).
  • Figures 2 and 3 show a variant too Figure 1 , in which the nonwoven layer (1) has further auxiliary carriages (14, 15, 16), each of which can also have its own carriage drive (18) with one or more electric linear motors (19) (not shown).
  • an upper support carriage (16) is provided for an upper run of the one conveyor belt (8).
  • the support carriage (16) is arranged above the main carriage (10, 11) and is located between the upper carriage (10) and an upper auxiliary carriage (14) which is designed as a tension carriage.
  • the support carriage (16) or its carriage drive (18) is also coupled with the uppercarriage (10) for control purposes.
  • the auxiliary carriages (14, 15) are designed as tensioning carriages for one conveyor belt (7, 8) each. They unclamp the variable-length belt loop, which is formed when the main carriages (10, 11) are decoupled from each other on their own.
  • the kinematics of the upper tensioning carriage (14) for the conveyor belt (8) is matched to the travel movements of the laying carriage (11) and moves in the opposite direction. Accordingly, the carriage drives (18) are coupled to one another for control purposes and are coordinated with one another or connected to the controller (40).
  • the kinematics of the other lower tensioning carriage (15) for the conveyor belt (7) are matched to the travel movements of the uppercarriage (10) and move in the same direction.
  • Figure 2 shows Figure 2 the course of the conveyor belts (7,8) and the arrangement of the main and auxiliary wagons (10 - 16).
  • Figure 3 alternative movement-technical couplings of the main and auxiliary cars (10 - 16) are shown.
  • the main carriages (10, 11) have a carriage drive (18) with one or more electric linear motors (19), with a mechanical drive connection (28) between the main carriage (10, 11) and the associated auxiliary carriage (12 - 16) , 29, 30, 31), which is formed, for example, by tensile and flexurally elastic connecting means, for example ropes or tapes.
  • the upper carriage (10) is coupled to the lower support carriage (12) via a drive connection (28) and to the upper support carriage (16) via another drive connection (29). There is also a drive connection (30) between the superstructure (10) and the lower tensioning carriage (15). The upper tensioning carriage (14) is coupled to the laying carriage (11) by the drive connection (30).
  • Figure 4 shows a further variant of a fleece layer (1) with two main carriages (10, 11) and two tensioning carriages (14, 15).
  • the tensioning carriage (14) is matched in terms of movement to the laying carriage (11), wherein in Figure 4 the variant of a mechanical drive connection (31) is shown.
  • the other tensioning carriage (15), whose kinematics are matched to the superstructure (10), has its own carriage drive (18) with an electric linear motor (19).
  • auxiliary carriages (12-16) have an independent carriage drive (18) with at least one electric linear motor (19) and the other part has a mechanical drive connection.
  • the carriage drives (18) and their electric linear motors (19) can be controlled or regulated. Suitable for a control are suitable measuring devices (39), which preferably record the position and / or the path and / or the speed of the associated carriage (10 - 16) or a part of the carriage drive (18) connected to it with contactless sensors.
  • the measuring device (s) (39) is in Figure 5 shown schematically and is also connected to the controller (40). Alternatively, there can be a direct connection to the internal control of the electric linear motor (19).
  • Figure 5 shows schematically and in broken form an upper carriage (10) and its carriage drive (18) with an electric linear motor (19).
  • the electric linear motor (19) can be single or multiple. It has a primary part (20) with an electrical coil arrangement (21) and a secondary part (23) with a magnet arrangement (24).
  • the coil arrangement is energized and generates an electromagnetic field which interacts with the field of the magnet arrangement (24).
  • the magnet arrangement (24) has, for example, permanent magnets with alternating polarity.
  • the electric linear motor (19) has a linear stator (25) and a rotor (22) movably guided thereon by means of a guide means (27).
  • the stator (25) has a finite and selectable length. It extends along the route and at least over the route length of the associated wagon (10 - 16). It can also be longer than the route.
  • the stator (25) is supported on the frame (2). He can also take over a possibly supporting frame function.
  • the stator (25) over the discharge conveyor (5) to the frame parts (12) arranged on both sides of the discharge conveyor (5) and is supported and fastened there with its ends.
  • the guide means (27) is designed, for example, as a guide rail and is mounted on the stator (25).
  • the rotor (22) can be designed as a slide which is mounted on the guide means (27).
  • the bearing can be designed as a mechanical roller or sliding bearing. Alternatively, it can be designed as a contactless bearing with magnetic or electromagnetic fields.
  • the rotor or slide (22) can encompass the stator (25) in regions or completely, as is exemplified in Figure 7 is shown.
  • the guide means (27) can also be designed as a contactless air cushion guide.
  • the rotor (22) is connected in a suitable manner, for example by means of a connection (26), to the associated carriage (10 - 16).
  • This can be a fixed or flexible connection.
  • a trolley (10-16) can be connected directly to the runner (22) with its trolley frame (41) be, for example, the connection (26) is designed as a screwing surface.
  • the connection (26) can be designed as a spacer.
  • the attachment can be rigid or movable within limits, for example sprung.
  • part of the carriage frame (41) can be designed as a runner (22), in particular as a slide.
  • the rotor (22) forms the primary part (20) with the coil arrangement (21) and the stator (25) forms the secondary part (23) with the magnet arrangement (24).
  • the assignment can be reversed.
  • the carriages (10-16) each have a carriage guide (17).
  • This can be designed in a conventional manner and formed by guide means, for example rods or rails on the frame (2), on which the carriages (10 - 16) with rollers (34) engage on several sides and are guided in the axial direction of movement.
  • Figure 1-6 show this variant.
  • the carriages (10 - 16) can be guided and supported via the respective carriage drive (18) and its electric linear motor (s) (19).
  • the stator (25) serves as a support, the guide means (27) forming the carriage guide (17).
  • the carriages (10-16) are then supported and guided via the connected rotor (22) on the stator (25).
  • FIGS. 6 and 7 show an example of such an arrangement.
  • the carriages (10, 16) each have a carriage frame (41) with the deflection means (36, 37, 38) mounted thereon.
  • the latter are preferably designed as rotatable, in particular freely rotatable deflection rollers.
  • the carriage frame (41) has two laterally spaced upright frame cheeks (42), between which the said deflection means (36, 37, 38) are received by means of a bearing (43).
  • the two-sided frame cheeks (42) are with the Carriage guide (17) connected.
  • FIG 7 A carriage guide (17) is shown by linear motors (19) arranged on both sides of the respective carriage (10-16). A hanging or standing mounting or connection is optionally possible, the electric linear motors (19) optionally being arranged above or below or next to the carriage frames (41) or one or both frame cheeks (42).
  • Figure 7 It also shows in the lower part that a carriage drive (18) can only have one electric linear motor (19) or several, in particular parallel, electric linear motors (19).
  • the linear motor (s) (19) can engage or be mounted laterally, on the top or on the underside of the carriage frame (41) or the frame cheeks (42) in the aforementioned manner.
  • Figure 7 also illustrates the arrangement of a holding device (44) on a carriage (10-16) or on its carriage frame (41).
  • the holding device (44) generates an electrical field, in particular an electrostatic field, on one or more deflecting means (36, 37, 38) of the carriage (10 - 16), with which the fibrous web (3) can be held and guided during the deflection.
  • the electric field counteracts the centrifugal forces that occur during the deflection and keeps the fibrous web (3) in contact with the transporting conveyor belt (7,8).
  • the conveyor belt (7, 8) can be designed to be field-permeable.
  • the holding device (44) preferably acts at those deflection points or deflection means at which the fibrous web (3) is transported lying open on a conveyor belt (7, 8).
  • the field supply can be done by the electric linear motor (19).
  • the holding device (44) can be supplied with electrical voltage via an electrical linear motor (19) and in particular via its rotor (22). This voltage supply can be controllable in order to be able to adjust the field strength required in each case in adaptation to the existing operating parameters, in particular running speed, deflection angle, pile quality, etc.
  • the holding device (44) can also be connected to the controller (40).
  • the holding device (44) for guiding and holding a fibrous web (3) with an electrical, in particular electrostatic field has independent inventive significance. It can also be used with other types of direct or indirect car drives of a fleece layer (1) according to the preamble of claim 1, in particular linear direct drives for a car (10 to 16). In particular, these can be other types of direct electric drives, fluid drives with cylinders or the like. Said holding device (44) can also be arranged on a deflection means in the frame (2) of the fleece layer (1) or can be assigned to the latter.
  • camelback layers This can be, for example, training corresponding to DE 102 50 089 A1 to have.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Woven Fabrics (AREA)
  • Structure Of Belt Conveyors (AREA)
EP14805198.0A 2013-11-08 2014-11-06 Vliesleger und betriebsverfahren Active EP3066240B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201320105029 DE202013105029U1 (de) 2013-11-08 2013-11-08 Vliesleger
PCT/EP2014/073951 WO2015067704A1 (de) 2013-11-08 2014-11-06 Vliesleger und betriebsverfahren

Publications (2)

Publication Number Publication Date
EP3066240A1 EP3066240A1 (de) 2016-09-14
EP3066240B1 true EP3066240B1 (de) 2020-01-01

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EP14805198.0A Active EP3066240B1 (de) 2013-11-08 2014-11-06 Vliesleger und betriebsverfahren

Country Status (5)

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US (1) US10309040B2 (zh)
EP (1) EP3066240B1 (zh)
CN (2) CN110029411B (zh)
DE (1) DE202013105029U1 (zh)
WO (1) WO2015067704A1 (zh)

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CN110029411B (zh) 2022-08-02
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CN105705692B (zh) 2019-04-16
WO2015067704A1 (de) 2015-05-14
EP3066240A1 (de) 2016-09-14
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CN105705692A (zh) 2016-06-22

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