JP2010540790A - Fiber feeder - Google Patents

Abstract

Fiber delivery device comprising fiber feeding means, feeding fiber material via a carding or opening roll to fiber distribution means characterized in that the fiber distribution means are perpendicular to the collection means divided in a plurality of small fiber distribution means, which are build such that a continuous flow of fiber material can be directed either in the direction of the collection means or in a direction away from the collection means.

Description

  The present invention relates to a feeding device for feeding fiber material to a collecting device such as a rotary drum, a collecting belt or a product mold.

  In the automotive industry, fiber felt materials are used, for example, in a wide range of products for sound insulation in doors, ceiling coverings, especially floor areas. These products are formed and cut to fit the space. Furthermore, certain areas of the product contain a greater amount of material to obtain a higher sound insulation. For example, under the dashboard, extra material is used to reduce noise from the engine. In order to improve the sound insulation locally, additional materials are also required under the carpet or in certain areas of the floor. The felt product can be combined with a weight layer material to form a spring mass system, or it can be combined with an air flow resistance layer to form an acoustic absorption system.

  These products have areas where there are no fibers, for example for fastening means, or need to avoid equipment in the vehicle and in order to be accurately placed in the vehicle, certain products such as doors or floors Must conform to the contour. Thus, the product is cut after the curing step. The scrap that remains after cutting is a mixed material that has already been cured by a heating step. Therefore, most of these materials are difficult to recycle. This is a real problem in the modern automobile industry.

  Traditionally, fiber felt products are manufactured from preformed fiber mats containing binder fibers that are pressed in a heated mold and cut to obtain the desired shape and stiffness. The disadvantage of this method is that the basis weight of the product is limited because it depends on the fiber mat. A region with a higher basis weight can only be obtained by supplying material additionally by hand. This operation is time consuming and extremely expensive. Furthermore, because the fiber mat is supplied as a wound product or a pre-cut mat, the manufacturing process will result in a large amount of scrap material. Another disadvantage of using a preformed mat is that the mat is easily broken or broken when the mat is pressed in a mold having a more extreme profile.

  Schlichter, in the article "Alternative Anwendungen fuer Flockenspeiser" (7-8 / 2001) in Melliand Textilberichte, suggests using a lap former that can produce wraps of varying height, In this case, the change is located in the width direction of the web to be formed. Since the wrap is collected on a moving collection belt, the change is only seen in the width direction and not in the length direction of the web being formed. In order to obtain such a change in the width direction, the supply tray has a plurality of small supply trays, and the nip spacing of these supply trays can be adjusted individually, thereby increasing the height of the formed wrap. Get a change in height. The disadvantage of this system is that it can be adjusted only before production and not during production. Furthermore, this system only allows changes in the width direction of the wrap and produces a striped pattern in the final wrap produced. It is impossible to obtain different basis weights in local areas or areas without material.

  Another manufacturing method blows the fibers directly into the mold. US 3697208 or US 2007/0007695 discloses a method in which the mold is completely filled with fiber material. The disadvantage here is also that the basis weight of locally different fibers can only be set by forming the mold and by the type in which the mold is pressed to obtain the final product. It is impossible to obtain open areas or gaps in the product.

  EP 0770154 discloses a system of at least one filling hose arranged above the mold for filling the mold with fibrous material. The mold is placed on top of the vacuum air conduit and traps the fibers in the mold. A collection of fibers is supplied to each hose. With the air tube, the air flow is used to discharge the assembly from the hose or drive it to the next gate section. A programmable positioning device can be used to provide a variety of different density regions in a single molded product, thereby operating the mold filling hose. The filling hose is then placed in different areas of the mold, and over time, the amount of fiber is adjusted in each area. This can also be done using more than one hose per mold. The disadvantage of this system is that it is a complex and expensive machine, leaving little room for a flexible process.

  Accordingly, an object of the present invention is to obtain a fiber supply device capable of supplying a fiber material in a predetermined amount to a required area. The fiber feeder can be used to produce a nonwoven fiber web or wrap, to fill a mold, or to produce a nonwoven fiber product with a three-dimensional shape.

  This object is achieved by the fiber feeding device according to claim 1, in particular by diverting the fiber flow in the direction of the collecting device or the recycling device so that the fiber can be used before any final collection in the collecting device. Not disturbed or aggregated in the condition. In addition, the width of the machine is divided into small sections, each having means for sending the fiber stream to a fiber collection device for the final product or to a recycling device for "waste" material again for later use. In this way, it is possible to supply the fiber material to a predetermined area of the final product at a specific basis weight and to exclude the fiber material from the predetermined area of the product. Rather than being secured to the mold, the product can also be in the form of a wrap, a three-dimensionally shaped mat or a product. Also, the product can be a continuous fibrous material web with a three-dimensional structure or a separate product.

  The fiber supply device according to the present invention has fiber supply means for supplying the fiber material to the fiber distribution means via a roll or an opening roll, and the fiber distribution means is perpendicular to the collection means, Divided into small fiber distribution means, which are arranged such that a continuous flow of fiber material can be sent to or diverted from the collection means.

  The small fiber dispensing means can be a movable discharge nozzle or a small chute. In the case of a movable discharge nozzle, the discharge nozzle 230a injects the fibers into the collecting device 208 at the first position and injects the fibers away from the collecting device 208a at the second position. A small chute is separated by a wall from another adjacent small chute, in which case the small chute has a pivoting flap, which sends the fiber stream to the collecting device, or It is arranged so that it can be sent away from the collecting device.

  The fibers diverted from the collecting device can be sent to a recycling device, preferably in the form of a conduit. The collecting device can be a moving perforated belt, a moving perforated plate, a moving perforated mold or a perforated rotating drum.

  A vacuum means can be placed below the collecting means in alignment with the position at which the fiber material is placed by the dispensing means. If the small fiber distribution means is a small chute, the small chute can have at least two outlets, one outlet is directed to the collecting device, the other outlet is directed to the recycling line, and the pivoting flap is , Arranged so that at least one of the outlets can be closed. Alternatively, a small chute can have at least two outlets, one outlet is directed to the collector, the other outlet is directed to the recycling line, and the pivoting flap is one outlet It is arranged such that when it is open, the other outlet is closed at the same time. Each small fiber distribution means can have pneumatic damping means and can be individually controlled by the PLC.

  The first device according to the invention has a first main chute with means for feeding fiber material to a second chute feed section. The second chute supply section is divided into a plurality of sections in the width direction. These sections are separated from each other by walls and form a plurality of small chutes. The feeding means are arranged directly above these small chutes, and the material flow is automatically divided into smaller fiber streams by these separating walls. Each of these small chutes has two channels, one channel directed to the fiber collection device and the other channel directed to the recycling device. At the junction of the two channels that separate the two channels to follow different directions, the pivot flap is arranged so that at least one of the channels can be closed. This pivoting flap can guide the fiber stream towards the collecting device or away from the collecting device and towards the recycling device. Instead of a channel, it is also appropriate that the small chute has at least two outlets.

  The recycling device can simply be a large container or box for discarding the fiber material, but it can also be a tube system with a ventilator, preferably the tube system is connected to the first main chute. ing. However, a simple opening and closing system with a small chute with only one outlet that can be opened and closed using a valve is one option. More preferred is a system with at least two outlets and a pivoting flap. This system has the advantage that the fiber material does not rise during processing and need not be compressed. This system has the advantage that the flap cannot be blocked by the fiber mass. A more uniform density distribution of the material flow is thus ensured over the entire width of the product.

  In order to be able to control the direction of flow of the fiber material in each of the small chutes, the pivot flap is controlled. The rotation can be performed by a conventionally known hydraulic or pneumatic means. These means for pivoting can be controlled and adjusted. Preferably, a computer control system is connected to each pivoting flap, which makes it possible to control the position of the flap and when the position has to be switched. By controlling each flap separately, the amount of fiber material and the placement of the fiber material relative to the product or fiber mat can be controlled.

  A plurality of small chutes divides the collector width into smaller areas, the length and width of these areas depending on the width and length of the smaller chutes. The total number of regions in the width direction parallel to the main chute is the same as the total number of small chutes.

  Depending on the time the fiber stream is sent to the collecting device and the fiber flow rate of the fiber supply means by controlling the direction of the rotating flap and thus the fiber stream, the fiber is not fed through each small chute. Alternatively, a predetermined amount of fiber material can be supplied. The flow rate of the fibers is determined by a supply means that supplies fiber material to all small chutes at the same time. Thus, for example, if the collection device is a continuous moving flat perforated belt and all flaps are set so that the fiber stream is directed towards this belt, the web width and length A conventional non-woven wrap or web is provided in which the fibers are evenly distributed (length is in the direction of the moving belt).

  It is also possible to move the belt intermittently in a stepped manner. One step can correspond to a small chute length. If the pivoting flap is controlled to send the fiber stream in an intermittent flow to the collector, this can be viewed as a division of the fiber material. In the case of a moving belt, this means that separate quantities of fibrous material can be placed in separate areas of the belt. Depending on the stepped movement of the belt, these separate quantities are either separated from each other or overlapped. In order to form a region where no fiber material is present, the fiber material simply needs to be displaced from the collection device for a predetermined time.

  By using this system, if the fiber stream is diverted from the collecting device, an area can be provided that does not have fiber material, and the fiber stream sent to the collecting device can be fed into the collecting device below the fiber feeding device. By timing in relation to the movement of the region, a region having a predetermined amount of material can be provided.

  A second alternative device according to the present invention provides for the movement of the collecting device instead of a static small chute, each with a pivoting flap so as to send the fiber material to or away from the collecting device. A plurality of discharge nozzles distributed in a direction transverse to the direction, wherein each discharge nozzle has a first position where the nozzles inject fibers onto the collecting device; It is movable between a second position for jetting away from the collecting device. In one particular embodiment, an apparatus for producing a web of nonwoven fibers has a recycling apparatus for recycling the fibers sprayed by the discharge nozzle at the second location. The apparatus for producing the web of nonwoven fibers advantageously has a reprocessing device for returning the fibers recycled by the recycling device to the fiber feeding device.

The present invention also provides a method for producing a web of nonwoven fibers, the method comprising:
Moving the collection device relative to a fiber supply device having a plurality of discharge nozzles distributed in a direction transverse to the direction of movement of the collection device;
Continuously injecting fibers by the plurality of discharge nozzles;
Each injection nozzle has a step of moving between a first position where fibers are injected onto the collecting device and a second position where fibers are not injected onto the collecting device.

  Advantageously, a fiber recycling step is performed after each step of moving between the first position and the second position.

  Advantageously, there is a step in which the fibers recycled in the fiber recycling step are conveyed to a fiber feeder.

  The present invention also provides a web of nonwoven fibers produced by the production method according to the above aspect.

It is a schematic side view which shows the fiber distribution apparatus by the 1st Embodiment of this invention. It is a front view of the fiber distribution apparatus by this invention seen from the direction of AA. It is a figure which shows the alternative means regarding arrangement | positioning of a rotation flap. It is a figure which shows the example of the web of the nonwoven fabric fiber by this invention. Figure 3 is a schematic diagram showing an apparatus for producing a web of nonwoven fibers according to a second embodiment of the present invention. Figure 3 is a schematic diagram showing an apparatus for producing a web of nonwoven fibers according to a second embodiment of the present invention. FIG. 2 is a schematic diagram for manufacturing a complex three-dimensional product.

  Here, the fiber distribution device according to the first embodiment will be described with reference to front and side views of FIGS. 1 and 2. The fiber distribution device according to the invention has a main chute 1 for storing fiber material. The chute may have conventional equipment for providing a uniform fiber mass as known in the art, for example, a rear wall that moves back and forth, or a perforated rear wall with a ventilation system (not shown). it can. The uniform fiber mass is supplied to the winding or opening roll 3 by the two supply rolls 2. It is also possible to use other supply means for conveying conventionally known fiber materials, for example combined supply rolls and trays. The winding or opening roll is used for the final density reduction of the fiber mass. Usually, the fibers are supplied in a bundle of fibers. Thus, the fibers form an aggregate, not a loose fiber material. The opening roll opens these aggregates and provides a more uniform fiber material. Furthermore, the binder fibers can be mixed with the basic fiber material. Furthermore, the separating or opening roll additionally functions as a mixing device.

  The broken fiber material is put into the lower chute 10 from the rolling roll. The lower chute is divided into smaller sections 9 across the width of the machine, each section being separated by a wall from another adjacent section, forming a plurality of small chutes. Each of these chutes 9 has at least two outlets, one outlet leading to the recycling line 5 and the second outlet 6 leading to the collecting device. The collecting device is in this case formed as a perforated moving belt 8 with a suction device 7 arranged below the belt facing the outlet 6 of the small chute. The collecting device moves in a direction perpendicular to the width W of the fiber supply device, this direction being called the length of the fiber web or product to be produced. Basically, the width W is limited to the width of the fiber feeder, but the length L is not limited and depends on the product or web being manufactured.

  A rotating flap 4 is arranged between the two outlets 5, 6, which can guide the fiber stream to the recycling line 6 or to the collecting device 5. In the first embodiment, the flap is attached to the top wall of the tube and can be rotated so that the channel to the recycling line is opened and closed. The recycle line is connected to a ventilator, and a suction force that is spread evenly over the entire width of the channel can be obtained. When the flap opens the channel to the recycle line, this suction force causes the fibers released from the soot roll to be sucked into the channel without falling into the outlet line leading to the collecting device. When the flap closes the channel to the recycle line, the suction is stopped and the fiber falls or is sent to the line or outlet leading to the collection device.

  Alternatively, the flap can be placed at the corner between the outlet leading to the recycling line and the outlet leading to the collecting device (FIG. 3), in which case the pivot is located in the center of the flap. One pipe is opened and the other is closed at the same time.

  In any case, each flap is connected to a unique pneumatic means for controlling and generating the rotation of the flap.

  The fibers are collected in the collecting device 8. The collecting device can be a moving perforated belt (not shown) or a rotating drum. The surface of the collecting device can be flat or have a surface in the form of a mold. Below the collection surface, which is located directly below the fiber feeder, a vacuum line 7 is arranged, which holds the fiber material on the collection surface and prevents the fibers from being blown off.

  Preferably, the rolling roll has a serrated wire with large teeth 11. In one preferred embodiment, the serrated wire functions as a screw conveyor, pressing the fiber material to the side, allowing easy and uniform access to a small chute.

  Control of the direction of fiber flow has the advantage that discrete amounts of fiber material can be placed on specific parts of the surface of the collection device. The fiber distribution device divided into X smaller chutes over the entire width of the machine is equal to X separate areas on the collecting device below the outlet, which contain individual quantities of fiber material. Can be dropped. Over the width, each flap can be set separately to distribute the fiber to a collector or recycle line, so that out of X positions, an empty position or a predetermined amount of material A position to receive can occur.

  FIG. 7 shows a typical control method for manufacturing a three-dimensional product in a stepped manner. The entire area of the collector is divided into small squares, each square equal to the small chute width W 'and length L'. If the square is empty, this indicates that no fiber material is present, and an analog small chute flap corresponds to the signal to deflect the material away from the collection device, for example, to a recycling device. A predetermined amount of fiber material is provided in each square where the material is needed, and this amount corresponds to the time the material flow is sent to the collection belt.

  In the direction of movement of the collector perpendicular to the width of the fiber feeder, the length is divided into a plurality of rows, each row being provided by a stepped movement of the collector. The amount of movement in this step type depends on the length of the small chute and the amount of row overlap required. When stepped movement occurs, this movement depends on the time that the row requires, that is, the time required for a small chute to supply the most amount of fiber needed in the row. This flexible way of controlling the movement of the collecting device and the flow direction of the fibers with time makes it possible to obtain a fiber web as a desired product with areas that vary in density and even where there is no fiber material. . Furthermore, it is possible to have a region where these fibers are not present not only at the peripheral portion of the product but also at the central portion.

  FIG. 4 shows an example of a nonwoven fiber web 220 having a recess 408, a hole 404, and a thickness reduction 406, delimited by a contour 402.

  FIG. 5 shows an apparatus 200 for producing a web of nonwoven fibers according to a second alternative embodiment of the present invention. An apparatus 200 for producing a web of nonwoven fibers includes a fiber supply device 124, a collection device 208, and a suction device. The fiber is supplied to the collecting device 208 by the fiber supply device 124. The collection device is in operation with respect to the fiber supply device 124 and has a hole. Collection device 208 moves in the direction indicated by arrow 210. The collection device 208 moves to distribute the fibers so that the fibers do not accumulate in one place. In another embodiment, the collection device 208 can be stationary, against which the fiber feeder 124 moves. The suction device is designed to suck air through the hole, thereby pressing the fibers against the collecting device 208. This device can be the same for both alternative means.

  The supply device 124 has a plurality of discharge nozzles 230a and 230b distributed (transversely in the vertical direction) with respect to the moving direction 210 of the collection device 208, and each discharge nozzle 230a and 230b is in a first position. It is movable between 230a and the second position 230b. Therefore, the movable nozzles 230a and 230b can be positioned at the first position or the second position, and can be positioned independently of the other nozzles.

  Each discharge nozzle 230 a in the first position injects fibers onto the collection device 208, and each discharge nozzle 230 b in the second position injects fibers away from the collection device 208. That is, only the fibers ejected by the discharge nozzle 230a in the first position reach the collecting device 208 and agglomerate to form a web 220 of nonwoven fibers.

  The positions of the discharge nozzles 230a and 230b are controlled by positioning means such as a pneumatic actuator or a servomotor. The control unit controls each positioning means according to a desired position of the discharge nozzles 230a and 230b to which the control unit is connected. By controlling the position of each discharge nozzle 230a, 230b, the amount of fibers sprayed onto the collection device 208 in front of each nozzle 230a, 230b can be varied, thereby providing webs with varying thicknesses. 220 can be manufactured. The surface of the web 220 facing the collecting device 208 is flat, while the other surface of the web 220 has various heights, each height corresponding to a change in the thickness of the web 220. ing.

  FIG. 6 shows a web 220 having a thickness reduction portion 310 produced by positioning a corresponding discharge nozzle in a first position for a predetermined time and positioning in a second position after the end of this time. Is shown. The moving speed of the collector 208 and the flow rate of the fibers through the discharge nozzles 230a, 230b must be synchronized with each other to produce the desired maximum thickness. The moving speed of the collecting device 208 is determined as a function of the fiber flow rate to provide a suitable fiber basis weight on the collecting device 208. Various width webs 220 can be created by moving the outer discharge nozzle to a second position. That is, in the case of the web 220 shown in FIG. 6, the thickness reduction portion 406 is necessary to produce a greater thickness through one or more discharge nozzles located approximately in the center of the collection device 208. This is provided by jetting the fibers over a shorter period of time. The holes 404 are similarly created by diverting all fibers ejected by one or more associated discharge nozzles from the collection device 208. The recess 408 itself is created by diverting all the fibers ejected by one or more associated discharge nozzles from the collection device 208.

  In order to prevent the fibers ejected by the ejection nozzle 230b in the second position from being wasted, the manufacturing apparatus 200 includes a recycling apparatus 302 for recycling the fibers. In the present embodiment, the recycling apparatus 302 is formed as a funnel. In order to reinject the recycled fibers into the fiber supply device 124, the manufacturing apparatus 200 has a reprocessing device for returning the fibers recycled by the recycling device 302. Thus, the fiber proceeds as indicated by arrow 304 representing the reprocessing device.

  In one particular embodiment, the manufacturing apparatus 200 has a boundary wall 232 disposed on the collection device 208. These boundary walls 232 help maintain the web structure 220 to provide mechanical strength to the web before it is post-processed. The boundary wall 232 is installed substantially perpendicular to the collector 208 and preferably forms a closed loop.

  The aftertreatment device may be a heating tunnel in which hot air acts on the binder. Once cured, the nonwoven fiber web 220 is shaped while applying pressure and heat to provide the final shape to the web.

  The operation principle of the manufacturing apparatus 200 of the present invention will now be described (FIG. 6). As the fiber 120a exits the fiber hopper 102, it is fed to two rollers 104 that rotate in the direction of arrow 114, which form a dispensing device or supply means. The fibers 120b that have come out of the distribution device are then sent to the separating roll 106 that opens the fibers. Upon exiting the soot roll 106, the fibers 120b are distributed to the various discharge nozzles 230a, 230b and are jetted away by or from the collection device 208 by these discharge nozzles. This jet of fibers by all the discharge nozzles 230a, 230b has another advantage over the method of opening and closing each discharge nozzle as required, even if some discharge nozzles are directed away from the collection device 208. Have. The problem with closing the discharge nozzle is that this closure increases the pressure on the fibers in the closed discharge nozzle and can cause clogging. In addition, each time the nozzle is opened, a condensed mass of fibrous material is re-injected, rather than loose fiber material.

As described above, the method of manufacturing the nonwoven fiber web 220 includes:
Moving the collection device 208 relative to the fiber supply device 124 having a plurality of discharge nozzles 230a, 230b distributed transversely to the direction of movement of the collection device 208;
Continuously injecting fibers through a plurality of discharge nozzles 230a, 230b;
Each discharge nozzle 230a, 230b has a step of moving between a first position where fibers are jetted onto the collecting device 208 and a second position where fibers are not jetted onto the collecting device 208. .

  In one particular embodiment of the invention, a fiber recycling step is performed after each step of moving between the first position and the second position. Advantageously, there is also a step in which the fibers recycled in the fiber recycling step are conveyed to the fiber supply device 124.

  This method produces a three-dimensional web 220 by varying the amount of fibers that are jetted to a specific location on the collection device 208. After this manufacturing method, the web 220 can be molded while applying pressure and heat, and during this molding, certain portions of the web 220 are compressed to varying degrees so that where the noise source is located. The density at a predetermined position is changed based on the above.

  FIG. 7 is a schematic diagram illustrating a method for controlling and manufacturing separate products having regions with different basis weights of fiber material or regions without fiber material. The darkly filled area is an area having a high basis weight, the thinly filled area is a product area having a normal basis weight, and the blank area is an area where no fiber is present. Compared to the product shown in FIG. 4, the recess 408 and the outline 402 are formed by blank areas, and the area 406 with reduced thickness is formed by a thinly filled area.

  The width W of the product is equal to the width of the fiber distribution device 12, and a small chute 9 is shown schematically to understand the principle of the fiber distribution method. The surface of the collecting device is moving in direction L. An example for an intermittent step-wise method that can have the following steps is described below. The collecting surface is moved in the direction L by a distance L ′. L ′ is approximately the same distance as the length of the small chute 9 in order to obtain a blank surface below the dispensing device. The pivot flap is set to send fiber material to the collection surface or to deflect the fiber material from the collection surface. After a predetermined time, a small chute that feeds the fiber material to the collection belt can be redirected to stop the flow of fiber material to the collection surface, while another chute adjacent to that chute is still Supply. This provides a localized area with a greater basis weight of the material. Finally, all fiber streams are diverted from the collection surface. The collecting surface is again moved by the length of L ′.

  In practice, it is also effective to move the collection surface by a distance greater than L ′, for example to form a blank between the products. Depending on the fiber material, the fibers adhere or fall in the form of a ridge. Therefore, it is also advantageous to move a distance slightly less than L ′ so as to compensate for the slight overlap.

  It is not always necessary to divert all fiber streams off the collection surface. A more gentle distribution of basis weight can be produced by continuously moving the collection surface while distributing the fiber material to the collection surface.

  The computer control board can mirror the drawing of FIG. 7 and can set the desired amount of fiber material in each region in advance. By using the apparatus and method according to the present invention, it is possible to provide a product with various different basis weight areas or areas without fibers in the product, to provide the desired outer contour of the product and thus The step of cutting after forming can be reduced. Also, the steps between the methods and the total amount of scrap material to be discarded are reduced.

  The invention is of course not limited to the examples and embodiments described and illustrated, but can include many variations that will be apparent to those skilled in the art. An embodiment disclosed in combination with one variation can also be used with another variation in accordance with the present invention that falls within the general scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Main chute, 2 Supply roll, 3 Rolling or opening roll, 4 Rotating flap, 5 Recycle line, 6 Second outlet, 7 Suction device, 8 Perforated moving belt, 9 Chute, 102 Fiber hopper, 104 roller , 106 unrolling roll, 120b fiber, 124 fiber supply device, 200 device, 208 collection device, 220 web, 230a, 230b discharge nozzle, 232 boundary wall, 302 recycling device, 402 contour, 404 hole, 406 thickness reduction part, 408 Recess

Claims (9)

  A fiber supply device comprising a fiber supply means for supplying a fiber material to a fiber distribution means via a roll or an opening roll, wherein the fiber distribution means is perpendicular to the collection means Divided into a plurality of small fiber distribution means, the plurality of small fiber distribution means being formed such that a continuous flow of fiber material is sent to or diverted from the collection means. And a fiber feeder.   The small fiber distribution means is a movable discharge nozzle, which discharges the fibers into the collecting device (208) in the first position and from the collecting device (208a) in the second position. The fiber supply device according to claim 1, wherein jetting is performed in a diverted manner.   A small fiber distribution means is a small chute separated by a wall from another adjacent small chute, which is arranged so that the fiber chute can be sent to or diverted from the collecting device The fiber supply device according to claim 1, further comprising a rotating flap.   4. The fiber feeding device according to claim 1, wherein the fibers deflected from the collecting device are sent to a recycling device, preferably formed as a conduit.   The fiber supply device according to any one of claims 1 to 4, wherein the collecting means is a moving perforated belt, a moving perforated plate, a moving perforated mold, or a perforated rotating drum.   6. The fiber supply device according to claim 1, wherein a vacuum means is arranged below the collecting means in alignment with a position where the fiber material is arranged by the distributing means.   A small chute has at least two outlets, one outlet is directed to the collecting device, the other outlet is directed to the recycling line, and the pivoting flap is at least one of the outlets The fiber supply device according to claim 3, wherein the fiber supply device is arranged so as to be closed.   The small chute has at least two outlets, one outlet is directed to the collecting device, the other outlet is directed to the recycling line, the pivoting flap is open to one outlet. The fiber supply device according to claim 3, wherein the other outlet is closed at the same time.   9. A fiber feeding device according to claim 1, wherein the small fiber distribution means have respective pneumatic damping means and are individually controlled by the PLC.

Images