EP3529061A1

EP3529061A1 - Device for accommodating tapes and tape installation device

Info

Publication number: EP3529061A1
Application number: EP17791646.7A
Authority: EP
Inventors: Matthias Graf
Original assignee: Dieffenbacher GmbH Maschinen und Anlagenbau
Current assignee: Dieffenbacher GmbH Maschinen und Anlagenbau
Priority date: 2016-10-19
Filing date: 2017-10-19
Publication date: 2019-08-28
Also published as: WO2018073361A1; DE102016119954A1

Abstract

The invention relates to a device for accommodating tapes (20), comprising: a vacuum generator (27) for generating a vacuum; an installation table (15) with a table top (17) for accommodating tapes (20) on the table surface (16) of the table top (17) and at least one table leg (19), wherein the table surface (16) has openings (34) that are operationally connected to the vacuum generator (27); and at least one unit (E) for the translatory and/or rotary movement of the installation table (15) and/or the table top (17), wherein the unit (E) is arranged between the table surface (16) and the vacuum generator (27). The invention is distinguished in that at least one fluid connection is arranged in and/or through the at least one unit (E) to guide the vacuum from the vacuum generator (27) to the openings (34) in the table surface (16). The invention further relates to a tape installation device comprising at least one device for accommodating tapes.

Description

The present invention relates to a device for receiving tapes according to the preamble of claim 1 and to a tape laying device according to claim 13

Applications for fiber composites have continued to increase over the past decades, especially when they have been seen as a low - cost alternative to metallic materials, with the benefits of

Design freedom and application-specific formulation options. Specifically, the material CFK (carbon fiber reinforced plastic) has an extremely high

Lightweight potential, while being characterized by its high strength and very high structural rigidity. The latter is an important criterion in automotive engineering, for example.

Therefore, today's development activities for fiber composite processing equipment ranges from pure machine development to turnkey production systems. The former usually include P reforming units, press units and possibly injection units as well

Post-processing units - the latter the corresponding automation for preform handling, tool cleaning, component removal and the like.

The automatable production of the preform represents a key technology in the manufacturing process of continuous fiber reinforced fiber composite components

Realization of an efficient mass production with reproducible stable component quality dar. But even with so-called hybrid components, ie compression molded sheets, which are mainly pressed with carbon fiber semi-finished products to reinforce critical load zones in addition, all production units must be integrated plant and control technology, if a sufficient

Productivity should be achieved.

Today, predominantly semi-finished textile fiber products such as fiber yarns wetted with a binder (hotmelt adhesive) and / or partially or completely impregnated with a matrix and / or are used for the production of electrically reinforced components

Sheets (so-called prepregs) such as fiber fabrics, fiber knits, fiber fabric or fiber mats used. The matrix of fiber-reinforced plastics has the task of embed the heavy-duty fibers (support function) and completely fill their gap (blocking function).

In principle binder materials and / or matrix materials can be used materials from the groups of thermoplastics or thermosets and optionally additional elasticizing components, such as elastomers, which in the strength, the maximum elongation, the operating temperature, the processing speed and the Distinguish chemical resistance. Thermosetting molding compounds can be plasticized by the action of temperature, are malleable at this moment and then cure irreversibly under pressure and temperature. In contrast to the

Thermoplastics consist of the elastomers and thermosets (also called thermosets) after processing, d. H. in the ready-to-use state, of more or less strongly cross-linked macromolecules, which are generally neither fusible nor soluble.

From these semi-finished products, which are available as rolls or sheets in standard formats, blanks are produced in a cutting process, which usually line the formed component completely. When cutting the blanks, depending on the component geometry, a significant cutting waste is generated that can not be processed and significantly reduces the efficiency of this process. To improve resource efficiency, continuous fiber-reinforced components can be produced substantially less waste or without wastage via processes that have become known as tape-laying methods. In particular, the use of tapes made of thermoplastic continuous fibers proves to be a very attractive process variant. Here, in particular, the laying of the usually present as a tape fiber composite material for building a laminate is a particular challenge.

In the context of the present invention, a "tape" is preferably to be understood as meaning any type of web-shaped material, in particular a prepreg material, which for example has a width between 30 and 200 mm, which is suitable for being deposited by means of a tape-laying device. In the present case, in particular fiber yarns (rovings), fiber scrims and / or fiber fabrics are meant which wets with a binder and / or with a matrix, for example a thermosetting or thermoplastic matrix, partially or completely impregnated, in particular pre-impregnated, are.

The "fibers" are, in particular, carbon fibers, but the term "fibers" likewise includes glass fibers or other fibers, in particular natural or man-made fibers.

The tape can be arranged on a carrier material, in particular a carrier film or a carrier paper, which dissolves during the laying of the tape for building the laminate from the carrier material, wherein the carrier material by means of a suitable device of the tape laying device eliminated, for example, wound. However, it is also preferable to use tapes which no longer require carrier materials.

For the processing of tapes is known to deduct these from a spool or roll to cut to length and place on a laying table or already laid on the laying table tapestry. With the removal of a tape strip or tapes this is connected pointwise with a number of ultrasonic welding heads with the underlying tape layer. For processing tapes and for carrying out a tape laying process, automatic devices are often used which are able to deposit a structured tape. Known are in particular so-called. Tapelegevorrichtungen, which in the present case, for example, a so-called. Fiber placement device is to be understood.

An exemplary tape laying apparatus is known from document WO 2014/083196 A1, which describes a tape laying apparatus configured with two laying head units. The laying head units are arranged so that they are accessible to a single laying table. The laying head units are independent of each other and each configured with its own material feed unit, cutting device, gripping means with associated linear drive, guideways and tape stitching unit. In this configuration, a belt section can be drawn to length, positioned in guideways and stapled in place with the first laying head unit on the part to be produced, while at the same time the next section of belt is lengthwise pulled and positioned on the second laying head unit in the guideways. After the first band portion is tacked by the first laying head unit, the laying table conveys the part to be produced to the second laying head unit, during which the next band portion is prepared and positioned to be adhered to the part to be produced.

The US 8.048.253 B2 also describes a tape laying device with a

Laying head, wherein a tape tape material is fed to a cutting device which separates a tape strip or a tape, which is then placed with the laying head on the working surface of a laying table. The tape tape material and the separated tape are guided in the laying head in each case in guide rails, which are arranged on both sides of the tape or the tape, wherein the edges of the tape or the tape in grooves in the guide rails

are provided are held. The document also describes that several laying heads can be provided, so that it is possible to deposit several tapes or tapes at the same time.

The tapestry to be produced, which is achieved successively on the laying table by the filing of the individual tapes, usually comprises a plurality of stackings, the fiber orientation of which differs from stacking to stacking. So that the tapes can be placed on different places and with different orientations on the laying table, it is necessary a translatory and often also a rotary movement of the laying table. But especially with the rotation of the

Legetisches results according to the prior art, the disadvantage that the rotation can be done only in a frame of -180 to +180. Especially when first a tape with an orientation of +160 and the next tape is to be stored at -170, it is necessary in the prior art that the table has to perform a rotation by -330, since he can not turn over + 180. This costs on the one hand a cycle time when placing the tape when the laying table constantly has to make a big turn. On the other hand, due to the long rotations, corresponding forces act on the tapes already stored on the laying table. These

In turn, forces must be compensated for by the attractive forces generated by vacuum on the tape structure. It is therefore an object of the invention to provide an improved tape-receiving apparatus and a tape-laying apparatus and an improved tape-laying method which overcomes the above drawbacks.

It is a still further object of the invention to provide an improved tapes receiving apparatus and a tape laying apparatus which can be used flexibly and quickly for efficiently depositing tapes.

It is still a further object of the invention to provide an improved tapes recording apparatus and a tape laying apparatus which enables a fast cycle time to deposit a tape.

It is still a further object of the invention to provide an improved tapes receiving apparatus and a tape laying apparatus which can be used with low equipment costs and operating costs.

As a first solution is a device for receiving tapes, comprising a vacuum generator for generating a negative pressure; a laying table having a table top for receiving tapes on the table surface of the table top and at least one table leg, the table surface having apertures operatively connected to the vacuum generator; as well as at least one device for translational and / or rotational movement of the laying table and / or the table top, wherein the device for translational and / or rotational

Movement is arranged between the table surface and the vacuum generator, wherein at least one fluid connection for passing the negative pressure from the vacuum generator to the openings in the table surface is arranged in and / or by the at least one device for translational and / or rotational movement.

The aforementioned invention now makes it possible to provide the openings in the table surface largely free of hose connections with a negative pressure, since a fluid connection via the devices already present in the device for translational and / or rotational movement of the Legetisches and / or the table top takes place. In particular, the central fluid connection via a device for rotational movement of the Legetisches and / or the table top allows the Legetisch and / or the table top unlimited, and thus over an angle of 360 ° addition to move, since the present in the art hose connections, which have a finite length, can be omitted to supply the openings with negative pressure. A preferred embodiment of the invention is characterized in that in the at least one device for translational and / or rotational movement, a first opening is arranged, which is in fluid communication with the openings of the table top, and at least one second opening, which in fluid communication with the

Vacuum generator is.

Alternatively or in combination, the fluid connection of the first opening and the second opening is operatively connected in and / or via the device for translational and / or rotational movement. The fluid connection between the first and the second opening can be done in many ways. Preferably, at least one hose can be arranged to form the fluid connection. However, this hose runs within the devices for translational and / or rotational movement.

However, a fluid connection which is carried out by the devices for translational and / or rotational movement itself is preferred. For this purpose, the devices openings, which in direct connection with the

Vacuum generator and the openings are. The means for translational and / or rotational movement thus form part of the pipe system for the negative pressure from the vacuum generator to the openings.

In a preferred embodiment, either a device for

arranged translational movement or a device for rotational movement. In the case of a desired translational and rotational movement, two devices are preferably present which can be operated separately from one another. By decoupling the translational and rotational

Exercise also gives more freedom in the design of the individual facilities for movement. Preferably, the means for translational and / or rotational movement comprise a first part and a second part, which are movable relative to each other. The organization and division of the devices for movement in at least two parts allows movement of one part while the other part can be arranged stationary. By fixing a part of this can be connected, for example, with fixed pipe connections with the vacuum generator, which, however, still allows a free movement through the first part.

In a preferred embodiment it can be provided that the first part and the second part of the devices for translational and / or rotational movement are sealed against each other. By sealing, which can be done for example via a seal, it can be achieved that in a fluid connection through the means for moving the negative pressure can also be maintained and there are no leaks and false flows. In particular, the translational device comprises a box comprising

Side walls and a lid, as a first part and a plate over which the box is movable and which extends over the dimensions of the lid of the box, as a second part. The box slides over the plate which, by virtue of its greater extent to the lid, can allow the box to move over long distances.

A preferred embodiment provides that in the plate, the second opening, preferably stationary, is arranged, which remains during movement of the box within the side walls of the box. Thus, the sidewalls of the box can not move beyond the second opening and expose them. This is necessary that always a seal against the vacuum generator is guaranteed.

Alternatively or in combination, the rotary device comprises a rotary bearing as the first part and the table top or the distribution box or the table leg or the translatory device as the second part. The arrangement of the pivot bearing depends on the circumstances of the entire device. In a pure rotational movement, the arrangement can be done almost anywhere between the openings and the vacuum generator. On the other hand, a translational movement is also possible be so, the arrangement is to be chosen so that in any movement the

Fluid connection is maintained.

Preferably, a central bore in the table leg is part of the fluid connection via which there is an operative connection of the first opening to the second opening. A central bore offers the advantage that, for example, the table leg can be rotatably mounted and can be rotated indefinitely through the central bore without separating the fluid connection between the openings and the vacuum generator.

Preferably, a distribution box for distributing the negative pressure over the openings in the table surface is arranged between the table surface and the device for translational and / or rotational movement or the second opening. Via the distribution box, the supply of negative pressure to the individual openings or table segments can be controlled. If necessary, it is also possible to add or remove individual openings or table segments in order to ultimately optimize the overall energy requirement.

A further solution relates to a Tapelevornchtung comprising a feeder for supplying tapes, a laying device for receiving tapes from the feeder and depositing the tapes on a device for receiving tape, wherein the device for receiving tapes may be as stated above.

In particular, the tape device further comprises a material feed unit for feeding tape material, in particular tape tape material, and a cutting device for cutting the tape material into individual tapes.

Further preferred embodiments are set forth in the dependent claims. The invention will be described below with reference to the drawings with reference to exemplary embodiments.

Show it:

Fig. 1 is a Tapelegevornchtung;

Fig. 2 shows an inventive device for receiving tapes in a

sideview Fig. 3a, 3b two embodiments of a device according to the invention for

Recording of tapes in a top view; and

Fig. 4 shows the arrangement for sealing the device according to the invention

opposite the environment.

FIG. 1 shows a tape laying device 1 for producing fiber-reinforced components and reinforcing structures for fiber-reinforced components in a schematic cross-sectional view. As shown in Fig. 1, in the tape laying device 1, a tape material 2, which is preferably provided as a tape tape material, for example, wound on a reel 3, unwound from the spool 3 and fed to a feeder 8. For this purpose, a drive device 6 is arranged in front of the feed device 8, which in this embodiment has a pair of drive rollers, the one

Roller drive, also referred to as lack drive form, which ensures the transport of the tape material 2. The drive rollers of the drive means 6 are driven by one or more motors (not shown) under the control of a control device (not shown), so that the tape material 2 at a desired speed and / or a desired length in the

Feed device 8 "pushed" and is supplied in such a way.

Between the coil 3 and the drive means 6, the tape material 2 is guided over deflection rollers 4. For a continuous operation of the tape laying device 1, it is necessary that in the area of the material supply a buffer system. 5

is arranged, which can accommodate a certain stock of tape material 2. Thus, in cases where, for example, a change of the coil 3 is necessary to be produced without interruption with the present in the buffer system 5 tape material 2, until a new coil 3 used and their tape material 2 was threaded into the system. The buffer system 5 can be designed as a dancer system, which causes a supply of tape by means of one or more spring systems.

In the further course before or in the feeding device 8, the tape material 2 by means of a cutting device 7, which is designed for example as a cutting blade, cut to separate from the tape material 2 individual tapes 20 each have a desired length. For clean cutting, it is necessary that the supply of tape material 2 to the feeding device 8 is stopped briefly becomes. In order to still allow a continuous unwinding of the coil 3, the buffer system 5 can also compensate for this brief braking or stopping the movement of the tape material 2. The cutting device 7 or the cutting blade is angularly adjustable, so that not only cuts can be made transversely to the tape direction of the tape material 2, but by means of a corresponding

Adjustment of the cutting device 7 by an angle of, for example, ± 45 ° relative to the transverse direction of the tape material 2 and tapes 20 can be cut, which are cut to a corresponding desired angle.

Alternatively, it would also be conceivable that the tape material 2 are already supplied as tapes 20 present in the feeder 8 and cutting to tapes 20 at this point no longer necessary. A cutting device 7 may also be arranged outside of the actual tape laying device and come as a feeding device in addition to conveyor belts any kind of

Means of transport into consideration.

After the tapes 20 have been separated from the tape material 2 and separated in the cutting device 7, or have already been supplied as a single tapes 20, the tapes 20 are transported on the feeder 8 on which the tapes 20 finally to a laying device 1 first feeds and passes to them. In the present embodiment, both the feed device 8 and the laying device 1 1 are equipped with one or more transport belts 9, 12 guided around deflection rollers 10, 13 as transport means. In the

Feeding device 8 while the tapes 20 are resting, that is, transported on a top of the feeder 8 on the conveyor belt 9 resting. On the other hand, the individual tapes 20 are each transported "hanging" in the laying device 1 1. For this purpose, the laying device 11 is provided with one

Vacuum device 14 provided which necessary for the transport

Provided negative pressure, so that the tapes 20 can be sucked to the bottom of the laying device 1 1. It should be noted that herein the term vacuum is not used in the sense of an ideal, complete vacuum, which would correspond to a complete absence of air or other gases. Rather, the term vacuum is used herein in the sense of negative pressure, which in particular is sufficiently pronounced in order to be able to safely comply with a desired and / or required minimum holding force. The vacuum device 14 is connected to the conveyor belt 12 of the laying device 1 1, that sucked through the conveyor belt 12 through air and a negative pressure can be built up, for example by a plurality of openings are provided in the conveyor belt 12, through which the air is sucked can. Alternatively, a conveyor belt 12 may be used, for example of a fabric material, so that the mesh of the fabric material the

Represent openings and a corresponding suction effect is formed, which is necessary for sucking tapes 20.

The laying device 1 1 is arranged above a laying table 15. The laying table 15 comprises a table surface 16 having a plurality of openings 34 which are in operative connection with a (not shown) vacuum device 27, so that via the openings 34, air or other gaseous media to produce a

Vacuum can be sucked. The laying table 15 or the table top 17 can be subdivided into a plurality of table segments 18, which each comprise a plurality of openings 34. Depending on the need and position for storing tapes 20, the individual table segments 18 can be switched on and off so as to minimize the use of energy and to avoid unwanted air currents.

The laying table 15 and / or the laying device 1 1 can be moved in the vertical direction relative to each other so that the laying device 1 1 can place and place at least one individual tape 20 on the laying table 15. For example, a linear guide (not shown) may be provided, by means of which the

Laying device 1 1 can be lowered in the vertical direction on the Legetisch 15 to the tape 20 on the table surface 16 of the Legetisches 15, or one previously formed on the table surface 16 of the Legetisches 15

Tapestruktur store, and if necessary, short and easy to press. After placing the tape 20, the laying device 1 1 is raised again to receive a next tape 20. It should be noted that for the purposes of this document, both the placement and removal of one or more tapes 20 on the table surface 16 of the Legetisches 15, as well as the deposition of one or more tapes 20 on previously laid on the laying table 15 tapes 20, in particular a previously formed stacking layer, to be understood as a placement and removal of the tape 20 on the laying table 15. In order to increase the laying rate, it is provided in particular that several tapes 20 are handled simultaneously, that is to say, in particular at the same time and in multiple tracks, whereby the number of tapes 20 per sequence is advantageously multiplied by such a parallelization. Accordingly, in one

Tapelegevorrichtung 1 may be preferably provided that the corresponding units are provided in accordance with multiple execution. Thus, two coils 3 may be provided, of which by means of two drive means 6 with a total of two pairs of drive rollers two strands of a tape material 2 withdrawn and fed to two respective cutting means 7, where separated by means of two cutting blades two respective tapes 20 and by means of two

Feeding devices 8 are fed to two laying devices 1 1. By means of the two laying devices 1 1 thus two tapes 20 can be placed and stored simultaneously on the laying table 15.

It can also be provided that, as is known, during the placement of tapes 20 previously deposited tapes 20, for example by means of this

provided ultrasound devices or other stapling devices are attached to the or the underlying stacking layers, for example by

Plasticizing, or at least partially consolidated with the underlying stacking layer (s) to form a laminate. This procedure can be for each additional

Tapelage be repeated. Alternatively or additionally, it is also possible to attach the tapes 20 immediately after they are placed and placed on the laying table 15 at or below the stacking layers, for example by means of

Staplers, in particular ultrasound devices incorporated in the

Laying devices 1 1 are provided. The first layer of tape 20, which is stored on the laying table 15, is at the table surface 16 by means of a

Vacuum device 27, which are in operative connection with the openings 34 on the table surface 16, held, wherein the tapes 20 are sucked to the table surface 16 of the Legetisches 15. FIG. 2 shows an embodiment of a device for receiving tapes 20. The device comprises a laying table 15, which is composed of a table top 17, which can be subdivided into a plurality of table segments 18, and a table leg 19. The table surface 16 of the table top 17 in this case has openings 34, to which a negative pressure is applied to the table surface 16 deposited Fix tapes 20 at a place that has been taken off. Next includes the Legetisch in this

Embodiment a distribution box 21, via which the negative pressure, which is supplied centrally via a first opening 31, to the individual openings 24 and the table segments 18 is passed. Optionally, the first opening 31 may also be arranged directly on the table top 17, for example if the table top 17 is not subdivided into table segments 18. The device for receiving tapes further comprises a box 22 which is arranged on a plate 23. In the plate 23, which is supported by means of supports 30 against the ground, there is a second opening 32, which communicates with a feed 24. Via the supply 24, the connection to a vacuum generator 27 (not shown in Fig. 2), which ultimately generates the necessary negative pressure for holding tapes 20 on the table surface.

For filing tapes 20 with different orientations and on

different locations on the table surface 16, it is desirable that the laying table 15 or at least the table top 17 can move in a translatory and rotational manner. This can often be achieved with less effort than equipping the complete laying device 11 with corresponding degrees of freedom. In order to allow movement of the Legetisches 15 or at least the table top 17 means E, E1, E2 are arranged, which the Legetisch 15 and der

Table top 15 give the necessary degrees of freedom. There may be devices E1 for translational movement and also devices E2 for rotary

Be arranged movement. A single device E, which combines one or both forms of motion, is also included in this embodiment. The number of devices E, E1, E2 is also determined by the respective degrees of freedom of the devices E, E1, E2.

In the present embodiment of Figure 2, the device E1 for

translational movement of the box 22 and the plate 23 constructed. The device E1 thus comprises two parts, box 22 and plate 22, wherein one part is movable relative to the other part. The box 22 includes several

Side walls, which can move over the plate 23, and a lid. The plate 23, which is arranged stationary, in this case forms a bottom, over which the box 22 can slide. In the plate 23, an opening 32 is further arranged, via which via a feed 24 a direct connection to the Vacuum generator 27 is. The opening 32 is in this case arranged fixed in the plate 23 and the box 22 can move freely through this opening 32, whereby in the box 22 itself, there is also a negative pressure. The movement of the box 22 is limited only insofar as the side walls of the box 22 can be moved to the opening 32, but not over this opening 32, otherwise the fluid connection between the box 22 and the vacuum generator 27 via the supply 24 would break off and via the supply 24 air would be drawn from the environment. Depending on the size and position of the opening 32, a sufficient translational movement of the box 22 of the device E1 can be achieved, which may be for example 4 m.

In order to achieve a fluid connection via the device E1 between the openings 34 and the vacuum generator 27, an opening 33 is also arranged in the box 22 of the device E1. This opening 33, also referred to as the third opening 33, opens directly to the table leg 19 of the Legetisches 15. About a central hole in the table leg 19 and a further opening 31, which connects the junction box 21 with the table leg 19 can a continuous fluid connection between the openings 34 and the vacuum generator 27 are achieved, which allows the laying table 15 and the table top 17 to translate. For a rotational movement of the laying table 15 or the table top 17, a device E2 can also be arranged for the rotational movement. The

Device E2 can be arranged in the present embodiment at several points within the device for receiving tapes 20. The device E 2 for a rotary movement comprises at least two parts, wherein a part is formed by a pivot bearing, which is usually arranged stationary. The second part of the device E2 can be formed, for example, by the

Table leg 19 or the distribution box 21 or the translatory device El In Figure 2, the pivot bearing could for example be arranged on the box 22 above the opening 33 and the entire Legetisch 15 and the table leg 19 could be stored thereon. The table leg 19 could thus be a free

Exercise rotational movement, since the fluid connection through the central bore in the table leg 19 would not be interrupted. Alternatively, the arrangement of the pivot bearing on the distribution box 21 would be conceivable, so that the table leg 19 would be stationary and only one rotation of the table top 17 including the distribution box 21 took place. In an embodiment of Figure 2 without distribution box 21, the table top 17 could be stored directly on the pivot bearing. This would have the advantage that only a minimum weight would be set in rotation compared to the complete Legetisch 15 in the arrangement of the pivot bearing below the table leg 19. By forming a device E2 for rotational movement, via which at the same time the uninterrupted fluid connection between openings 34 and vacuum generator 27 takes place, there is no end stop during the rotation and the laying table 15 or the table top 17 can be rotated indefinitely. By a continuous fluid connection between the openings 34 in the

Table top 17 and the vacuum generator 27 via the means E, E1, E2 for translational and / or rotational movement hose connections can be substantially avoided or significantly reduced. On the one hand, this has an effect on the vacuum generator 27, which can work more efficiently due to the shorter hose lengths. On the other hand, also reduce maintenance costs for the control of the connections.

In the figures 3a and 3b further embodiments of a device according to the invention for receiving tapes 20 are shown in a plan view. The figures branch a laying table 15 comprising a table top 17, which on a

Table leg 19 is arranged. The table top 17 in turn has a table surface 16, in which a plurality of openings 34 is arranged. A subdivision of the table top 17 into a plurality of table segments 18 may optionally be provided, but is not shown in the figures 3a, 3b. Likewise, a representation of a distribution box 21 has been omitted for the sake of clarity, but this element can optionally also be arranged.

As a device E1 for translational movement, a box 22 is arranged, which can slide over a plate 23. A feed of the negative pressure in the box 22, which is sealed against the plate 23, via an opening 32 in the plate 23. The box 22 is connected via one or more guides 26 with the

Side members 25 of the device connected, which only one movement in the

Allow the image plane in and out of it. Alternatively, a guide could also be arranged on the laying table 15 or a component of the laying table 15, so that a guide of the box 22 by a firm connection of the box 22 with the Legetisch 15 takes place.

On the box 22, in turn, the table leg 19 of the Legetisches 15 is stored. The fluid connection between the box 22 and the openings 34 in the table top 17 via an opening 33 between the box 22 and table leg 19 and a further opening 31 between the table leg 19 and table top 17, so that on the

Table surface 16 stored tapes 20 also remain in their stored position under active negative pressure. The vacuum generator 27 is, as shown in Fig. 3a directly connected to the feed 24 via a connection 35 and feeds the negative pressure directly into the feed 24 a. This arrangement and connection is particularly recommended if the vacuum generator 27 can be arranged directly next to the device for receiving tapes 20. Alternatively, it would also be a direct link from

Unterdruckerzeuger 27 with the plate 23 and present in the plate 23

Opening 32 via the connection possible. However, the feed 24 offers the advantage that the opening 32 can be designed with a larger area and the differences in the flow rates between the individual sections can be minimized.

In Fig. 3b, an alternative connection between vacuum generator 27 and the feeder 24 is shown. In this embodiment, there is a fluid connection between the feeder 24 and the longitudinal members 25, which can be used as a connecting element. The connection 35 to the vacuum generator 27 via a connection directly to one or more side members 25. This allows a greater distance between the vacuum generator 27 and the opening 32, on the other hand, pipelines are saved in the sense that existing objects which a line of the Underpressure also allow to be used. In addition, the longitudinal members 25 allow the line of negative pressure over a relatively large cross-section.

4 shows yet another embodiment of the sealing of the box 22 above the plate 23. For this purpose, a nose is provided on a side wall of the box 22, which forms a cavity between it and the side wall of the box 22. The formed cavity serves to receive a seal 28, which is preferably arranged completely circumferentially around the box 22. Between the box 22 and the plate 23, a gap is formed, so that the box 22 floats over the plate 23 and a seal to the environment, which is necessary when a negative pressure via the box 22 is necessary, via the seal 28. You seal 28 is formed and the material of the seal 28 is selected so that the sliding friction of her and the plate 23 is minimal when the box 22 is moved over the plate 23. For better sealing a spring element 29 is further arranged in the cavity between the nose and side wall above the seal 28, which is a certain play at different pressure differences between

Environment and the interior of the box 22 allowed. The spring element 29 may be formed, for example, as a circumferential round cord, which consists of an elastomer.

List of Reference P1534

1 tape device 20 tape

2 tape material 21 distribution box

3 coil 22 chamber

4 pulley 23 plate

5 buffer system 24 feeder

6 Drive device 25 side member

7 cutting device 26 guide

8 feeding device 27 vacuum generator

9 Conveyor belt 28 gasket

10 deflection roller 29 spring element

1 1 laying device 30 support

12 conveyor belt 31 opening

13 pulley 32 opening

14 Vacuum device 33 Opening

15 Legetisch 34 opening

16 table surface 35 connection

17 table top

18 table segment E, E1, E2 equipment

19 table leg

Claims

claims

A device for receiving tapes (20) comprising

a negative pressure generator (27) for generating a negative pressure;

a laying table (15) having a table top (17) for receiving tapes (20) on the table surface (16) of the table top (17) and at least one table leg (19), the table surface (16) having openings (34) with the

Vacuum generator (27) are operatively connected;

and at least one device (E) for translational and / or rotational movement of the laying table (15) and / or the table top (17), wherein the

Device (E) between the table surface (16) and the vacuum generator (27) is arranged, characterized in that at least one

Fluid connection for the passage of the negative pressure from the vacuum generator (27) to the openings (34) in the table surface (16) in and / or through which at least one device (E) is arranged.

2. Device according to claim 1, characterized in that in the at least one device (E), a first opening (31) is arranged, which in

Fluid communication with the openings (34) of the table top (17) is, and at least one second opening (32) which is in fluid communication with the vacuum generator (27).

3. Apparatus according to claim 2, characterized in that the

Fluid connection of the first opening (31) and the second opening (32) in and / or via the device (E) is operatively connected.

4. Device according to one of the preceding claims, characterized

characterized in that at least one hose is arranged to form the fluid connection.

5. Device according to one of the preceding claims, characterized

in that the device (E) is a device (E1) for

translational movement and / or means (E2) is arranged for rotational movement.

6. Device according to one of the preceding claims, characterized in that the means (E, E1, E2) comprises a first part and a second part, which are mutually movable.

7. Apparatus according to claim 6, characterized in that the first part and the second part are sealed from each other.

8. Device according to one of the preceding claims, characterized

characterized in that the translatory device (E1) comprises a box (22) comprising side walls and a lid as a first part and a plate (23) over which the box (22) is movable and which are beyond the dimensions of the lid of the box (22) extends as a second part.

9. Apparatus according to claim 8, characterized in that in the plate (23), the second opening (32), preferably stationary, is arranged, which remains during movement of the box (22) within the side walls of the box (22).

10. Device according to one of the preceding claims, characterized

in that the rotary device (E2) comprises a pivot bearing as the first part and the table top (17) or the distributor box (21) or the table leg (19) or the translatory device (E1) as the second part.

1 1. Device according to one of the preceding claims, characterized

in that a central bore in the table leg (19) is part of

Fluid connection is, via which an operative connection of the first opening (31) with the second opening (32).

12. Device according to one of the preceding claims, characterized

characterized in that between the table top and the device (E) or the second opening (32) has a distribution box (21) for distributing the

Vacuum over the openings (34) in the table surface (16) is arranged.

13. Tape laying device (1) comprising

a feeding device (8) for feeding tapes (20),

a laying device (11) for receiving tapes (20) from the Feeding device (8) and depositing the tapes (20) on a device for receiving tapes (20), characterized in that the device for receiving tapes is designed according to one of claims 1 to 12.

The tape laying apparatus (1) according to claim 13, further comprising a

Material feed unit for feeding tape material (3), in particular tape tape material, and a cutting device (7) for cutting the tape material (3) to individual tapes (20).