DE102017102468A1 - Storage table for a nonwoven layer and method for operating a storage table - Google Patents

Storage table for a nonwoven layer and method for operating a storage table

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Publication number
DE102017102468A1
DE102017102468A1 DE102017102468.9A DE102017102468A DE102017102468A1 DE 102017102468 A1 DE102017102468 A1 DE 102017102468A1 DE 102017102468 A DE102017102468 A DE 102017102468A DE 102017102468 A1 DE102017102468 A1 DE 102017102468A1
Authority
DE
Germany
Prior art keywords
storage
speed
belt
inlet
folded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE102017102468.9A
Other languages
German (de)
Inventor
Heiko Schenuit
Sven Thomßen
Horst Tönnis
Roland Angelkotte
Sebastian Langen-Hegemann
Stefan Höltken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Priority to DE102017102468.9A priority Critical patent/DE102017102468A1/en
Publication of DE102017102468A1 publication Critical patent/DE102017102468A1/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00Lap-forming devices not integral with machines specified above
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00Advancing webs
    • B65H20/06Advancing webs by friction band
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G21/00Combinations of machines, apparatus, or processes, e.g. for continuous processing
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/449Features of movement or transforming movement of handled material
    • B65H2301/4491Features of movement or transforming movement of handled material transforming movement from continuous to intermittent or vice versa
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/20Belts
    • B65H2404/26Particular arrangement of belt, or belts
    • B65H2404/261Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2612Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip forming serpentine transport path
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/20Belts
    • B65H2404/26Particular arrangement of belt, or belts
    • B65H2404/261Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2613Means for changing the transport path, e.g. deforming, lengthening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00Specific machines
    • B65H2408/20Specific machines for handling web(s)
    • B65H2408/21Accumulators
    • B65H2408/214Accumulators loop hanger accumulator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/17Nature of material
    • B65H2701/177Fibrous or compressible material

Abstract

The invention relates to a storage table for a fleece laying machine with a layer which places a pile on a discharge belt (15) folded, wherein the storage table (20) comprises an endless belt (21) which rotates the folded pile with a pulsating speed (v) of the outlet belt (15) takes over and delivers at a constant speed (v) to a subsequent machine for further processing or solidification of the folded fibrous web. The invention further relates to a method for operating a storage table. The invention is characterized in that the endless belt (21) of the storage table (20) is driven at the inlet with a first drive and driven at the outlet with a second drive, wherein the first Drive is coupled to the movement and the speed profile of the Leger.

Description

  • The invention relates to a storage table for a nonwoven with a Leger, which deposits a Felt folded on a discharge belt, wherein the storage table has an endless belt that takes over the folded batt at a pulsating speed of the discharge belt and at a constant speed to a subsequent machine for further processing or solidification of the folded fibrous web, according to the preamble of claim 1, and a method for operating a storage table.
  • For the production of multi-ply webs usually carding machines are used with subsequent nonwoven layers. In the carding machines fiber flocks are fed on the inlet side, which are dissolved up to the individual fiber and output on the outlet side as an unconsolidated textile fabric, the batt.
  • The nonwoven, which can be designed as Tafelleger or Steilarmleger transports the batt on a 90 ° to the E inlaufrichtung arranged discharge belt and sets the batt in a predetermined laying width in several layers on the outlet belt. The resulting nonwoven fabric can be solidified in a subsequent needle machine. The relation of the infeed speed of the web laying machine to the outfeed speed of the outfeed web determines the stratification to be achieved, that is to say the number of layers of web in the web to be delivered "fleece". The continuously tapered fiber pile is deposited on the outlet belt which is arranged at 90 ° to the direction of the yarn pile inlet, wherein in the outlet direction an increasing fabric "fleece" is extended out of the nonwoven laying machine. The corresponding relation between the entry speed of the batt into the batt and the corresponding exit speed of the discharge belt gives the appropriate web thickness appropriate to the structural property of the incoming batt and thus determines the structural property of the piled bobbins. The increasing use of nonwovens in low web weight production lines leads to high delivery speeds and low number of layers. In extreme cases, only 4 layers are deposited on the delivery table, the discharge belt. In conjunction with the required material throughput but also increasingly larger carding widths are used. Both factors, number of layers and carding width, lead due to the braking and acceleration paths of the oscillating laying carriage at a uniform constant speed of the trigger belt to an S-shaped slurging of the deposited Flores. In this case, S-shaped slurrying means that the pile layers in the edge region of the laid nonwoven are not straight, but in the form of crooked paths. In order to avoid the storage in the form of crooked trains, the trigger table is also slowed down and accelerated again synchronously with the carriage carriage movement. However, the machines arranged behind the fleece layer, such as nonwoven web or needling machine, require a constant feeding speed of the fleece. To compensate for the pulsating movement of the draw table and at the same time to achieve a constant speed in the feed to the following machine, so-called storage tables are used which are arranged between the draw-off table and the following machine.
  • The inlet of the web on the storage table is therefore synchronous to the pulsating speed of the draw table, where against the outlet of the web from the storage table in the following machine at a constant speed.
  • From the EP 1643022 A1 a delay device arranged between pile producer and nonwoven layer is known, by means of which the pile entering the stacker is purposefully stretched or compressed, with the aim of obtaining a nonwoven with an intended profile at the exit of the stacker. In order to enable a continuous Abfördergeschwindigkeit of the web to a downstream processing station, such as needle machine, the leveler a balancing device is arranged downstream, to which the web is transferred. This consists of an endlessly circulating storage belt, the nonwoven promotional top strand has a variable sag. The storage tape is led to the take-off table of the cross stacker to a guide roller, which is coupled to the stacker, so runs accordingly non-uniform. Parallel to the stacker associated first deflecting a further deflecting roller for the storage tape is arranged at a distance therefrom. The drive of this guide roller runs constantly at the speed of further processing, so that the web runs at a uniform speed in a subsequent processing.
  • Based on this prior art, it is an object of the invention to provide a storage table for a nonwoven, with which at high speeds of the web laying a continuous feeding of the web is made possible in a subsequent machine. It is another object of the invention to provide a method for operating a storage table, in which the least possible delay on the folded batt acts and this is passed with a high quality to the subsequent machine.
  • The invention solves the objects set by the teaching of claims 1 and 7; Further advantageous design features of Invention are characterized by the subclaims.
  • According to the technical teaching according to claim 1, the storage table comprises an endless belt which takes over the folded fiber web from the discharge belt at a pulsating speed and delivers it at a constant speed to a subsequent machine for further processing or solidification of the folded fiber web.
  • The invention is characterized in that the endless belt of the storage table is driven at the inlet with a first drive and is driven at the outlet with a second drive, wherein the first drive is coupled to the movement and the speed profile of the leger. Coupling does not understand the height of the speed, but controls the drive to the movement or corner points of the leger, which accelerates in its reciprocating, constantly drives and decelerates in the opposite direction. The drive at the entrance of the storage table is synchronized with the movement of the storage, so that the storage table can be operated independently of the speed of the discharge table.
  • In the prior art, the folded batt on the discharge belt at the same speed as on the inlet of the storage table, ie a pulsating speed which varies between the minimum value of, for example, 0 m / s and a maximum, with the disadvantage that the cross-laid fibrous web can be lifted off the belt by permanently reducing or increasing the sag of the upper run of the storage table. The drives of the outlet belt and the deflection roller, which together with the belt determines the speed of the inlet of the storage table, are coupled together so that both belts always drive at the same speed. The discharge belt and the belt at the inlet of the storage table have a speed that fluctuates at the same time and in height permanently between standstill and a maximum value, which is constantly accelerated or decelerated. By lifting the folded batt from the belt in the area of sag, unwanted wrinkles and visible defects occur.
  • According to the invention, the speed of the discharge belt is decoupled from the speed of the inlet of the storage table to the deflection roller. The drive of the outlet belt is decoupled from the drive of the deflection roller, so that they have an uneven speed. In order to ensure the same cycle of movement, it is provided to couple the drive of the inlet to the storage table to the movement and the speed profile of the leader. In this case, the movement or corner points of the leger are relevant, which accelerates in his back and forth, constantly drives and decelerates in the opposite direction, not the height of the speed of the Legers. The coupling of the drive at the storage table inlet to the movement profile of the leger ensures a more accurate control of the speed of the storage table and reduces the distortion on the folded batt.
  • Preferably, the speed of the storage inlet at the deflection roller no longer goes back to the minimum value of the outlet table, for example 0 m / s, but is always positive. This keeps the tape moving at the inlet of the memory table and will not decelerate to zero before being accelerated to a maximum. Due to the reduced speed difference between the inlet and outlet of the storage table, the pulsating slack of the belt is reduced, so that the folded batt is no longer lifted off the belt.
  • In a further advantageous embodiment, the band of the storage table to compensate for the differences in speed between the inlet and the outlet of the storage table in the upper run a slack in which the batt is cached.
  • Preferably, the maximum speed of the inlet to the storage table is lower than the maximum speed of the discharge belt. Also, this can reduce the acceleration and deceleration at the inlet of the storage table so that the forces acting on the transported folded batt are smaller.
  • A further improvement is achieved in that the minimum speed of the inlet to the storage table is between 30% to 70% of the maximum speed at the outlet conveyor. Thus, the folded batt is moved continuously between the discharge belt and the subsequent consolidation machine on the belt, so that only a small delay acts on him.
  • The inventive method provides that the batt is deposited folded by a Leger of the web laying on a discharge belt and is transported from there to a storage table with an endless belt that takes over the folded batt at a pulsating speed of the discharge belt and at a constant speed to the subsequent machine for further processing or solidification.
  • The transport speed of the folded fibrous web at the inlet of the Memory table coupled to the movement and the speed profile of the Leger. There is the advantage that the movement of the storage table is synchronized with the movement of the leger and at the same time the storage table and the deduction table can be operated at different speeds. The speed of the discharge belt is decoupled from the speed of the inlet of the storage table. The coupling or synchronization of the drive on the storage table inlet to the movement profile of the leger ensures a more accurate control of the speed of the storage table and reduces the delay on the folded batt.
  • The invention will be explained in more detail with reference to a possible schematically illustrated embodiment. Show it:
    • 1 : A schematic representation of a crosslapper;
    • 2 a perspective view of a crosslapper;
    • 3 : an illustration of an exit table with a storage table;
    • 4 : a speed diagram of the individual components.
  • In the 1 and 2 is exemplary and only schematically the principle of a nonwoven layer in the embodiment of a table or Kreuzlegers 1 shown. Instead of the Kreuzlegers 1 could also take a Steilarmleger the fleece and drop. From a carding machine, not shown, the batt is 3 on an infeed conveyor 2 a cross lender 1 transported. Within the Kreuzlegers 1 an upper carriage is arranged, in which in this illustration, only one guide roller 6 is recognizable. Furthermore, the stacker 1 a laying carriage, from which a laying roller 10 for a counterpart band 13 and a laying roller 9 for the infeed band 2 are shown. Between the laying roller 10 of the opposite band 13 and the laying roller 9 of the infeed conveyor 2 is the so-called leg gap 11 arranged from which the batt 3 exit and on a arranged below the laying carriage outlet conveyor 15 is filed. Both laying rollers 9 . 10 Depending on the direction of travel, the task is to take over the batt 3 orthogonal to the previous direction on a arranged below the laying carriage outlet conveyor 15 to fold and fold at the same time. For this purpose, the laying carriage moves in a horizontal direction permanently back and forth over a preset width, the so-called laying width. The laying carriage is thus permanently accelerated and decelerated with the fleece. As stated above, for a curve-free storage especially at low number of layers and the outlet belt 15 have a pulsating speed.
  • The infeed band 2 is in this embodiment to a first and second guide roller 4 . 5 to a deflecting roller 6 of the superstructure and around deflection rollers in the laying carriage, eg around the laying roller 9 diverted. Above the infeed conveyor 2 can a shroud 7 be arranged, in this illustration, a deflection roller 8th , a guide roller 6 of the upper carriage and another guide roller 12 to be led. Other constructive variants in which the laying carriage is not with the infeed conveyor 2 but interacting with another band is possible and known.
  • The infeed band 2 and the shroud 7 do not run parallel in this embodiment, but form an open angle to the carding, in which the batt 3 retracted and compressed slightly. The batt 3 is about the guide roller 6 the top of the car, with the shroud 7 by means of the guide roller 12 is discharged laterally. In exactly the other direction becomes the batt 3 transported, since he is around the guide roller 6 of the superstructure guided by 180 ° and on a below the infeed conveyor 2 parallel counterband 13 is filed. The counterband 13 and the infeed band 2 cling or lead the batt 3 now together until the leg gap 11 essentially from the distance of the two laying rollers 9 and 10 of the carriage is formed. The batt 3 emerges from the leg gap 11 off and gets on one below the leg gap 11 arranged outlet conveyor 15 placed. The laying carriage thus moves permanently in a horizontal reciprocating direction (arrow direction) across the width of the outlet conveyor belt 15 or over the set width, on which the batt 3 filed and folded it.
  • The infeed band 2 , the shroud 7 and the opposite band 13 can be designed as endless belts, with the shroud 7 and the opposite band 13 be permeable to air to remove entrained air. An inexpensive embodiment is the use of a perforated tape. A preferred embodiment is the use of a screen belt.
  • For a profiling of the fibrous web 3 can be increased or decreased by a delay or compression, the carriage carriage speed can be increased or decreased relative to the entry speed of the batt. That is, the laying rollers 9 and 10 proceed in a horizontal reciprocating direction faster or slower.
  • Both the infeed conveyor 2 as well as the shroud 7 have those for the batt 3 same direction and usually the same speed. To a certain extent, the fiber orientation at the surface may be affected in relation to the neutral fiber of the sliver be when both bands 2 . 7 be operated at slightly different speeds.
  • 3 shows the rear part of the outlet conveyor 15 from which the folded fibrous web 3 on the storage table 20 is handed over. The endless outlet conveyor 15 is through at least two pulleys 16 curious, of which at least one pulley 16 is driven. It thus results for the folded batt 3 on the outlet conveyor 15 the speed v 15 , which can pulsate due to the reciprocating movement of the laying carriage between the value 0 m / s and a maximum value, which may be, for example, 0.11 m / s. The outlet conveyor 15 downstream is the storage table 20 , After the schematic representation in 3 includes the storage table 20 an endless band 21 through several pulleys 22 . 23 . 24 is guided and stretched. At least the pulleys 22 and 23 are driven, the pulley 22 the outlet conveyor 15 is assigned, and the pulley 23 the following solidifying machine, not shown. Between the driven pulleys 22 . 23 can in the upper strand another deflection role 24 be arranged so that with a speed difference between the pulleys 22 and 23 the ribbon 21 in the upper run a slack 25 between the pulleys 22 and 24 can form with which the different speed of the folded batt 3 can be compensated and leveled. This is the tape 21 in the upper strand between the pulleys 24 and 23 Almost horizontally arranged to run the folded batt horizontally in a subsequent nonwoven web. In a subsequent needle machine can on the pulley 24 be waived. In the area of the pulley 22 that with the band 21 the inlet of the storage table 20 forms and close to the outlet tape 15 is arranged, the folded Felt 3 the speed v 22 on. In the area of the upper strand between the pulleys 24 and 23 the batt has the constant velocity v 23 .
  • In the prior art, the folded batt has 3 on the outlet conveyor 15 with v 15 the same speed as on inlet v 22 of the storage table 20 , that is, a pulsating velocity that fluctuates between the minimum value 0 m / s and a maximum, with the disadvantage that the crossed-laid batt 3 through the permanently shrinking or enlarging sag 25 from the band 21 can take off. The drives of the outlet conveyor 15 and the pulley 22 , together with the belt 21, the speed of the inlet of the storage table 20 determined, are coupled with each other. According to the state of the art, this means that v 15 = v 22 . The outlet conveyor 15 and the band 21 at the inlet of the storage table 20 have a speed that fluctuates constantly between standstill and a maximum value, which is constantly accelerating or decelerating. It is caused by the lifting of the folded batt 3 from the band 21 in the area of sag 25 unwanted wrinkles and visible defects.
  • According to the invention, the speed of the outlet conveyor 15 is determined by the speed of the inlet of the storage table 20 on the pulley 22 to decouple. In this case, the drive of the outlet conveyor 15, for example, the drive of the deflection roller 16 , from the drive of the pulley 22 decoupled, so that they can have an uneven speed. Where v 15 ≠ v 22 . Preferably, the speed v 22 of the storage inlet goes to the deflection roller 22 no longer to the minimum value of the discharge belt, for example, 0 m / s back, but is always larger. This leaves the tape 21 at the inlet of the storage table 20 always on the move and will not decelerate to zero, then accelerate to a maximum. The pulsating slack 25 of the band 21 decreases so that the folded batt 3 no longer off the line 21 takes off.
  • Preferably, the maximum speed of the inlet to the storage table 20 less than the maximum speed of the outlet conveyor 15 , Also, this can accelerate and decelerate at the inlet of the storage table 20 be reduced so that the forces that are transported on the folded fibrous web 3 act, are less.
  • A further improvement is achieved in that the minimum speed v 22 of the inlet to the storage table 20 between 30% to 70% of the maximum speed v 15 at the outlet conveyor 15 is → v 22 min = (0.3 to 0.7) × v 15 max . This will be the folded batt 3 continuous between the outlet conveyor 15 and the subsequent solidifying machine on the belt 21 emotional.
  • 4 shows an example of a velocity diagram according to the invention for a movement cycle of the laying carriage, which after the 1 and 2 essentially from the laying rollers 9 and 10 is formed. On the abscissa, the time is recorded in seconds, which may be, for example, 5.4 seconds when a reciprocating cycle of the laying carriage with the speed v 9/10. The speed v 9/10 of the laying carriage and the speed v 6 of the superstructure, which after the 1 and 2 essentially by the deflection roller of the superstructure 6 can be read on the right ordinate. Here it can be seen that the maximum speed v 9/10 of the laying carriage is twice as high as the maximum speed v 6 of the superstructure. The left ordinate, which is twice as large as the right ordinate, gives the Speed for the outlet conveyor v 15 and the speeds for the storage table v 22 and v 23 . The speed v 15 of the outlet conveyor 15 varies in this embodiment between 0m / s and 0.11 m / s. Thus, the folded batt is permanently accelerated and decelerated between a maximum value and a standstill. The speed v 22 at the inlet of the storage table 20 however, varies only between a value of 0.05m / s and 0.105m / s. That is, the inlet of the storage table 20 is operated with a weakened pulsation, whereby the speed v 22 at the reversal points is lower than at the outlet conveyor 15 , Due to the lower acceleration values at the inlet of the storage table 20 lower forces act on the folded batt than in the prior art, whereby the quality produced in the nonwoven fabric is maintained.
  • The speed v 23 at the outlet of the storage table is constant at 0.1 m / s. The difference in speed v 22 at the inlet of the storage table 20 to speed v 23 at the outlet of the storage table 20 is essentially the size of the sag 25 on, which is significantly smaller here than in the prior art. This can lift the folded batt 3 from the band 21 be avoided.
  • As the speed v 22 at the inlet of the storage table 20 from the speed v 15 of the outlet conveyor 15 is decoupled, the movement of both bands still has to run synchronously, the speed v 22 of the inlet of the storage table 20 coupled to the movement and the speed profile of the laying carriage. As in 4 is recognizable, the starting point for a cycle of movement of the inlet of the storage table at the speed v 22 is always when the speed v 9/10 of the laying carriage is zero. The end point of the acceleration or deceleration of the inlet of the storage table also always coincides with the end point of acceleration or deceleration of the laying carriage. The movement of the inlet of the storage table is thus synchronized with the movement of the laying carriage, whereby a decoupling of the speed of the discharge belt is possible.
  • Due to differences in the velocity profile between the outlet conveyor 15 and inlet of the storage table 20 Distortions occur in the folded batt 3 caused by a spacing in the spatial arrangement between the outlet conveyor 15 and storage table 20 can be compensated. The space or gusset between the pulleys 16 and 22 serves as additional storage in which the folded fibrous web can sag slightly there.
  • LIST OF REFERENCE NUMBERS
  • 1
    lapper
    2
    infeed conveyor
    3
    batt
    4
    first deflecting roller
    5
    second guide roller
    6
    Guide roller uppercarriage
    7
    shroud
    8th
    deflecting
    9
    put roller
    10
    put roller
    11
    laying gap
    12
    deflecting
    13
    against band
    14
    exit direction
    15
    discharge conveyor
    16
    idler pulley
    20
    memory table
    21
    tape
    22
    idler pulley
    23
    idler pulley
    24
    idler pulley
    25
    sag
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 1643022 A1 [0005]

Claims (11)

  1. A storage table for a nonwoven layer with a layer which folds a batt on a discharge belt (15) folded, the storage table (20) comprising an endless belt (21) transporting the folded batt at a pulsating speed (v 22 ) from the exit belt (12). 15) takes over and at a constant speed (v 23 ) to a subsequent machine for further processing or solidification of the folded fiber fabric gives, characterized in that the endless belt (21) of the storage table (20) is driven at the inlet with a first drive and on Spout is driven by a second drive, wherein the first drive is coupled to the movement and the speed profile of the Legers.
  2. Storage table after Claim 1 , characterized in that the discharge belt (15) is operated at a pulsating speed (v 15 ) between a minimum value and a maximum value, and the belt (21) at the inlet of the storage table (20) at a speed (v 22 ) between a minimum value and a maximum value is operated, wherein the minimum value of the belt (21) at the inlet of the storage table (v 22 ) is greater than the minimum value of the discharge belt (15) at the speed (v 15 ).
  3. Storage table after Claim 1 , characterized in that the endless belt (21) is guided by means of deflection rollers, so that it has an upper strand and a lower strand, wherein the upper strand by a deflection roller (22) with the first drive and by a deflection roller (23) with the second drive is formed, wherein between the driven deflection rollers (22, 23) a further deflection roller (24) is arranged.
  4. Storage table after Claim 3 , characterized in that to compensate for the differences in speed between the inlet and the outlet of the storage table (20) the belt (21) in the upper strand can form a slack (25).
  5. Storage table according to one of the preceding claims, characterized in that the maximum speed (v 22 ) of the belt (21) at the inlet of the storage table (20) is less than the maximum speed (v 15 ) of the outlet belt (15).
  6. Storage table according to one of the preceding claims, characterized in that the minimum speed (v 22 ) of the belt (21) at the inlet of the storage table (20) is between 30% to 70% of the maximum speed (v 15 ) of the outlet belt (15).
  7. A method for transporting a batt from a batt to a subsequent machine, wherein the batt is folded by a leader folded on a discharge belt (15) and from there to a storage table (20) with an endless belt (21), the folded Fasflor with a pulsating speed (v 22 ) of the discharge belt (15) takes over and at a constant speed (v 23 ) to the subsequent machine for further processing or solidification, characterized in that the transport speed of the folded fiber web at the inlet of the storage table to the Movement and the speed profile of the Leger is coupled.
  8. Method according to Claim 7 , characterized in that the folded fibrous web is transported on the outfeed belt (15) at a pulsating speed (v 15 ) between a minimum value and a maximum value, and transferred to the inlet of the storage table (20) which is at a speed (v 22 ) between a minimum value and a maximum value, wherein the minimum value at the inlet of the storage table (v 22 ) is greater than the minimum value of the discharge belt (15) at the speed (v 15 ).
  9. Method according to Claim 7 , characterized in that to compensate for the differences in speed between the inlet and the outlet of the storage table (20) of the folded Faserflor (3) in a slack (25) of the belt (21) is stored, which is arranged in the upper run.
  10. Method according to one of the preceding Claims 7 to 9 , characterized in that the maximum speed (v 22 ) of the folded fibrous web (3) at the inlet of the storage table (20) is less than the maximum speed (v 15 ) on the outlet conveyor (15).
  11. Method according to one of the preceding claims, characterized in that the folded fibrous web is transported at a minimum speed (v 22 ) at the inlet of the storage table (20) which is between 30% and 70% of the maximum speed (v 15 ) on the outlet conveyor (16). 15).
DE102017102468.9A 2017-02-08 2017-02-08 Storage table for a nonwoven layer and method for operating a storage table Pending DE102017102468A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102017102468.9A DE102017102468A1 (en) 2017-02-08 2017-02-08 Storage table for a nonwoven layer and method for operating a storage table

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017102468.9A DE102017102468A1 (en) 2017-02-08 2017-02-08 Storage table for a nonwoven layer and method for operating a storage table
EP17210212.1A EP3360990A1 (en) 2017-02-08 2017-12-22 Buffer device for a non-woven web-laying device and method for operating a buffer device
CN201810075838.5A CN108396412A (en) 2017-02-08 2018-01-26 Method for the storage net platform of web folding apparatus and for running storage net platform

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EP1643022A1 (en) 2001-04-23 2006-04-05 Autefa Automation GmbH Method for profiling a nonwoven fabric and profile forming device

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DE4411936C2 (en) * 1994-04-07 1996-03-28 Fischer Maschf Karl E Device for supporting and guiding a strip material to be processed in the loop area
FR2905684A1 (en) * 2006-09-11 2008-03-14 Asselin Thibeau Soc Par Action Method and system for producing a multilayer table, in particular by means of a caliper.
FR2930563B1 (en) * 2008-04-28 2010-04-30 Asselin Thibeau Buffer device and system for producing non-woven web
EP2175056B1 (en) * 2008-10-07 2012-02-01 Oskar Dilo Maschinenfabrik KG Device and method for transferring a non-woven web
CN104755666B (en) * 2012-09-06 2017-11-21 恒天(奥地利)控股有限公司 Compensation device for the transporting velocity of the fluctuation of web

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EP1643022A1 (en) 2001-04-23 2006-04-05 Autefa Automation GmbH Method for profiling a nonwoven fabric and profile forming device

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