AT512832A1 - Changing magazine for a device for laying film-like material - Google Patents

Abstract

A changing magazine (8) for a device (2) for laying sheet-like material, which is provided with at least one protective film covering a surface of the material, wherein the changing magazine (8) has a storage roller (9), soften the film-shaped material velvet protective film is wound, characterized in that the removable magazine (8) at least one of the storage roll (9) downstream driven Schutzlaufienaufwickelrolle (10,11) for winding up portions of the protective film after their detachment from the material, wherein the storage roll (9) a take-up movement of the at least one protective film take-up roll (10, 11) is driven.

Description

853 13:05:19 25-04-2012 5/27 «ft« ft ft ···················································································· ································································ 1

The invention relates to an exchange magazine for a device for laying sheet-like material, which is provided with at least one protective film which covers a surface of the material, wherein the magazine has a Speicherrolte on which the film-shaped material is wound together with protective film.

Furthermore, the invention relates to an apparatus for laying sheet-like material in a mold.

The term film or film-like in the present context, a flat Struktur.verstanden that is flexible, at least in the longitudinal direction, preferably also in the transverse direction.

In the production of rotor blades of wind turbines, it is known to apply straps in the longitudinal direction along the rotor blade inner wall in order to increase the buckling rigidity. These straps are usually made of gauze bands of constant width in the lamination process Such Gelegebändem may be, for example, laminates of GFRP films. In addition to the production of rotor blades, girths from these gusset belts can also be used as reinforcing or structuring elements in numerous other applications.

From WO2010129492 A a device of the type mentioned is known, in which for applying / laying the film along an elongated shape with a concave cross-section for producing a belt for a rotor blade at one end of the mold a plurality of storage rolls of the sheet-like material stationary in a Frame are arranged. The storage rolls are in this case in height From each of these roles, a film layer is removed and in the uefM emcorvi 25/04/2012 13:06

No .: R994 P.005 / 027 13:05:55 25-04-2012 6/27 853 • * • fr • fr ··· fr fr * * fr fr fr fr fr fr fr fr fr fr fr fr fr • fr fr «fr fr fr fr ·· fr * fr fr ·· 2

Form laid. After the layer has been built up, the individual layers of film are joined together by lamination to form the belt. A disadvantage of the known structure, inter alia, that an exchange of storage rolls is associated with a lot of effort and can cause long downtime of the system. Also, the spreading / laying out of the films along the mold with the known structure designed as very expensive.

It is therefore an object of the invention to overcome the drawbacks of the known prior art and to enable both easy replacement and to simplify the manufacture of articles constructed from foils.

This object is achieved with a Wechseimagazin of the type mentioned in the present invention that the removable magazine has at least one driven Schutzfollenaufwickelrolle for winding portions of the protective film after their detachment from the material, wherein the storage roll is driven by a winding movement of the at least one Schutzfolienaufwickelrolle.

According to the solution according to the invention, the drive unit of the storage roll is already integrated in the removable magazine. When retrofitting the removable magazine thus eliminates the complicated process of connecting the storage role with a drive. Since the drive is not directly seated on the storage roll, but rather on the movement of the protective roll take-up roll, which can be dimensioned substantially smaller than the storage roll, there are significant advantages in terms of controlling the unwinding movement of the material from the storage roll. Not least because the Schutzfolienaufwickelrolie aulweist a much lower moment of inertia than the Speicherrolie. The solution according to the invention thus enables both a very rapid replacement of the storage roll and an optimization of the process of material delivery. The solution according to the invention is particularly suitable for adhesive materials that are protected against self-sticking with a protective film. The film-type materials used are preferably so-called

IMAJ .006 / 027 25/04/2012 13:07 No .: R994 13:06:36 25-04-2012 7/27 853 I · ♦ · · ··· «* ♦ ··· 3 preg-Follen, for example, resin-impregnated GRP films, glass fiber, carbon fiber, basalt fiber mats, etc. The structuring fiber structure may, in the case of the materials just mentioned, be provided with a matrix formed of an adhesive, for example resin.

In order to facilitate detachment of the protective film, it may be provided that at least one peeling device for detaching the protective film from the material is provided between the storage rack and the protective film winding roller.

In order to ensure a good transfer Materiaiförderung, it may be provided that the Abschälvorrichtung is followed by a coated with a non-stick coating guide for the freed from the Schutzfoi material.

According to an advantageous development of the invention, it can be provided that between the storage roller and the at least one peeling device of the at least one Schutzföiienaufwickelrolle at least one guide roller for guiding and deflecting the material still provided with the protective film is provided in a vertical direction. As a result, the material can be brought into an optimum position, since after peeling off the protective film from the material, it can be pulled down by the aid of gravity, whereby the conveying process can be further optimized

In order to be able to optimally control or regulate the conveying speed, a rotary encoder can be arranged on the at least one deflection roller.

Furthermore, it can be provided that the exchange magazine has at least one brake for braking the accumulators. In this way, the conveying speed can be influenced very easily and efficiently.

The above object can also be achieved with a device of the type mentioned above, which has an inventive Wechseimagazin. The device according to the invention may be a stationary or even a movable laying head for the films. In a stationary embodiment, the mold in which the film is placed can move relative to the laying head. While in a mobile embodiment of the 25/04/2012 13:08

No .: R994 P.007 / 027 6S3 13:07:17 25-04-2012 8/27 pp »• · 4 • 4 4 4 4 4 4 t t t · * · ·· ·

PPP PP PPP PPPPPPPP PP 4

Laying head moved in relation to the mold. It should also be noted that in the present context, the terms "device" and "laying head are used interchangeably.

According to a preferred variant of the invention, the device or the laying head has at least one flexible pressing device in order to press the material freed from the protective film into a predetermined shape. The term "flexible" is understood to mean that the pressing device adapts to the surface of the mold. The pressing device can be a roller with an elastic casing, for example made of foam, rubber, or another elastomeric material, a cambered roller, a plurality of small rollers displaceable relative to one another in the vertical direction, a drag link belt guided around a deflection roller or a drag link chain, the weight of which presses the film into the mold, a flexible shaft, a bag filled with loose material, for example metal balls, or a fluid, etc. The flexible pressing device ensures that the film is pressed into the cross-section of the mold in this manner, without any distortion of the film. Another advantage of the flexible pressing device is that the film can be adapted to any cross section of the mold.

An advantageous variant of the invention provides that at least one deflecting device is provided between the interchangeable magazine and the flexible pressing device in order to guide the material emerging from the interchangeable magazine in the direction of the pressing device. By this embodiment of the invention, the conveyed from the removable magazine material can be conveyed in a simple manner in the direction of the pressing device.

With the laying head according to the invention, webs of films can be laid in layers one above the other in the mold. It has proven to be particularly advantageous if the laying head has a cutting device for separating the material in order to be able to cut off the film at the end of a laying path. p. 008/027 25/04/2012 13:08 no .: R994 853 13:07:58 25-04-2012 9/27 • «•» «· * ·» • e «· • * • * •» e * • * • • • • • * • • • • • * ♦ «·« · · · · · · · · · · · · · · · · · · · · · · · · · · 5

In order to ensure optimum application of the film after the cutting of the film or at the beginning of a laying track, the laying head can support a support, which supports a diverted in the direction of the pressing device front portion of the material.

Advantageously, the support in the direction of the pressing and vice versa displaced. In this way, it can be ensured that the support can again be returned to a neutral starting position after a tightening of the material removed from the protective sheet has taken place by a depression by means of the pressing device. By pressing the film-shaped material against the mold and by performing a relative movement between the laying head and the mold, the material comes off the supporting device, so that it is stretched on the line, i. between two reversal points of the laying head or the shape is no longer needed. By retracting the outrigger from the presser on the " stretch " makes it possible to prevent the supporting device from causing undesired damage to material layers already pressed into the mold. As an alternative to the Ausfühiungsfbrm just mentioned, however, the deposition can also be resiliently mounted or loaded with one of a form in which the material is designed, pioneering spring force, so that a pressing device facing the front of the support is lifted in an unloaded state of the mold , The spring force can be designed so that only by loading the support surface with a predetermined weight, this is moved downward in the direction of the mold.

In order to ensure optimal Ausiegen the film webs even with shapes with non-rectangular cross-sections, it may be provided that the support has a plurality of mutually parallel bars which are mounted individually pivotable about at least one horizontal axis and as a support surface for in the direction of Pressing device funded front portion of the material are provided. 25/04/2012 13:09

No .: R994 N2012 / 05300 P.009 / 027 13:08:40 25-04-2012 10/27 853 ·· ** t * · * · et · ♦ • • • • • * * et • · • • et · t * · • * • • * * * # # et • · • «• t * • · · e * + et + ··· et 6

A particularly advantageous variant of the invention provides that the rods are designed as hollow rods and have suction openings for sucking the material. In this way, it is very efficient to create a vacuum between the material and the support. Oil is particularly advantageous if the support is not withdrawn from the pressing device, since then it can be achieved that between the layers designed in the form no unwanted air pockets are present, which could eventually lead to blistering.

Since it is particularly advantageous in all Ausführungsfbrmen when the pressure device facing the front or front edge of the support at least at a turning point of the laying head or the mold, i. At the beginning of a new Folienahn, comes to rest under the pressing device, it is in front of all in role-like pressing devices of great advantage when the pressing device facing end portions of the rods are conical and have rounded tips.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures, which relate to non-limiting embodiments.

Each shows in a highly schematically simplified representation:

Figure 1 is a perspective view of a system with a first variant of a device according to the invention for laying sheet-like material.

2 shows a perspective view of a system with a second variant of a device according to the invention for laying film-like material;

Fig. 3 is a perspective view of a device according to the invention;

Fig. 4 is another perspective view of the device of Fig. 3;

Fig. 5 is a front view of the device of Fig. 3; 25/04/2012 13:10

No .: R994 P, 010/027 853 853 η / 27 13:09:17 25-04-2012 ··· ···· ♦ · • · * • • • • • • ··· »♦ * ··« «• • • • e • ♦ · # • * f • · * * * ·· 7

Fig. 6 is a side view of the device of Fig. 5;

7 is a section along the line VII VII in Fig. 5th

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or characteristic corn combinations from the different exemplary embodiments shown and described can also represent separate, inventive or inventive solutions.

It should also be pointed out that the figures are described comprehensively.

Fig. 1 shows a first variant of a system 1 for laying films. In this variant, an inventive laying head 2 is used which is arranged pivotable about a vertical axis. This embodiment makes it possible in a simple manner, by pivoting the laying head 2 to occupy two parallel forms 3,4 with foil-shaped material. The shapes may, for example, have any cross-sectional shape, for example concave or convex.

FIG. 2 shows a further variant of a system 5 for laying films, wherein the laying head 2 is arranged in a frame 6, which can be displaced along guides 7. A part of these guides 7 may extend parallel to the longitudinal extension of the molds 3,4 and a part of the guides may be arranged on the head sides of the molds transversely to the longitudinal extent of the mold 3,4. This variant has the advantage that, in principle, any number of adjacent arranged forms 3,4 can be occupied with a single laying head since 25/04/2012 13:10

No .: R994 P.011 / 027 853 853 12/27 13:09:57 25-04-2012 ·· | t · * »t« ·· ··· «·· * · t * · ··» * The laying head at the head ends of the molds 3, 4 moves from one mold to the next can be.

It should be noted that in all embodiments of the invention preferably either the laying head 2 is moved relative to the mold 3,4 or vice versa. In other words, either the molds 3 and 4 remain stationary and the laying head 2 is moved or the laying head 2 stands still and the mold 3 or 4 moves. In principle, however, embodiments of the invention are also conceivable, in which both the laying head 2 and the mold 3, 4 move.

As can be seen from FIGS. 3 to 7, the film to be unwound here is placed in a changing magazine 8, which can be exchanged as a whole and forms part of the laying head 2 according to the invention.

The changing magazine 8 has a storage roll 9, on which the film-shaped material is wound together with protective film. Furthermore, at least one of the storage roll 9 downstream driven Schutzfolienaufwickelrolle 10,11 provided for winding portions of the protective film after their detachment from the foil-like material. The storage roll 9 is driven by a winding movement of the protective film take-up roll 10,11. That a sheet of the peeled-off protective sheet is wound on one of the protective roll take-up reels 10, 11, thereby producing a torque acting on the storage roll 9, which drives the storage roll 9; in the illustrated embodiment, two protective sheet winding rolls 10 and 11 are provided. This is advantageous in particular when the material to be unwound from the storage roll 9 is covered by a protective film on each of the two surfaces. In principle, however, the invention also works with a single protective film take-up roll 10, 11.

The Schutzfolienaufwickelrollen 10,11 can be driven with its own motor. Between the storage roller 9 and each protective film take-up roll 10, 11, there is provided a peeling-off device 12, 13 for peeling off the protective film. These peeling devices 12, 13 may be designed, for example, as a peeling edge, as a sliding shoe, as a spreader roller, etc. 25/04/2012 13:11

No .: R994 P.012 / 027 853 853 13/27 13:10:38 25-04-2012 · «*« «« »fl · ♦ · * ··· * · · t · · · # ·· * · T # »· *« · i * M «l # · · * t # ff · ff ff ff ·· ff« ff »ff * ffffffff * 9

Between the storage roller 9 and the peeling devices 12, 13, a deflection roller 14 for guiding and deflecting the material still provided with the protective film can be provided in a vertical direction.

After the peeling-off device 12, 13, a guide 15 coated with a non-stick coating can be arranged for the material which has been freed or peeled off from the protective covering. On the guide roller 14, a rotary encoder can be arranged. If two Schutzfolienaufwickeiroilen 12,13 are provided, their rotational speeds must be synchronized, for this purpose, in the region of each Abschälkante 12,13 a force or pressure sensor, such as a load cell, be arranged to determine the respective tensile force. The measured values are compared with each other and the two tensile forces are regulated by a corresponding control of the drive motors to a predefinable setpoint, wherein each motor of the drive rollers can have its own control loop with its own manipulated variables. About the encoder on the guide roller 14 can be checked whether the desired unwinding speed is maintained. By means of a brake 16 on the storage roller 9, this can, if its unwinding speed exceeds a limit, be braked.

Due to different stresses in the film, the web can be moved from the center to compensate for such movements of the film, the laying head 2 can also a corresponding Bahnmittelregelung with a corresponding controller, sensors and a Bahnmittelregelungsmotor 17 aulweisen.

As can be further seen from the figures, the laying head 2 can have a flexible pressing device 18, for example in the form of a roller, in order to press the material freed from the protective film into the mold 3 or 4.

A deflecting device 19, for example in the form of a roller, can be provided between the changing magazine 8 and the flexible pressing device 18 in order to guide the material leaving the changing magazine in the direction of the pressing device, from which the film is pressed into the mold. N9ni9HViVin 25/04/2012 13:12. In order to cut the film after it has been pressed into the mold, N9ni9HViVin 25/04/2012 13:12

No .: R994 P. 013/027 853 853 14 m 13:11:20 25-04-2012 ·· · · · · · · · · · The laying head 2 comprises a cutting device 20, for example an ultrasound knife, a laser cutting device, a pair of scissors or knives, a water jet cutting device, etc.

To guide the film before it reaches the pressing device 18, the laying head 2 may have a support 21. This support 21 can be moved backward in the direction of the pressing device 18 and back. The support 21 may, for example, comprise a plurality of mutually parallel rods which are mounted individually ver-pivotable about at least one horizontal axis. The pressing device 18 facing Endberei-che of the rods 21 may be conical and have rounded tips. Furthermore, the rods may be formed as hollow rods and have suction openings for sucking the material. In order to ensure that the bars are always lifted off the mold in an unloaded condition, they can be turned upwards, i. a directed away from the form, restoring force be charged. Thus, the rods may be levitated to prevent injury to the material being pressed into the mold.

The embodiments show possible embodiments of the invention change magazine or the laying head according to the invention, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to There are also all conceivable variants that are possible by combinations of individual details of the illustrated and described embodiments and fall under the wording of the independent claims covered by the slot area. 25/04/2012 13:12

No .: R994 P.014 / 027 13:13:37 25-04-2012 18/27 fl ··· »··· * ·» ··· * »· t · · · · · · · ·« # ·······································································. ««

REFERENCE NUMBERS

investment

Device / laying head

shape

shape

investment

Rack guides

changing magazine

storage roll

Schutzfolienaufwickelrolle

Schutzfolienaufwickelrolle

peeling

peeling

Guide pulley guide

brake

Track center control motor

pressure device

Umtenkvorrichtung

cutter

Support NMiwnsann .018 / 027 25/04/2012 13:14 No .: R994

Claims (15)

13:12:01 25-04-2012 15/27 853 13:12:01 25-04-2012 15/27 853 ♦♦ * • · • t ι * · 1. Changing magazine (8) for a device (2) for laying sheet-like material, which is provided with at least one protective film which covers a surface of the material, wherein the removable magazine (8) a memory film (9) aulweist, on which the film-shaped material is wound together with protective film, characterized in that the removable magazine (8) at least one driven Schutzfolienautwickelrolle (10,11) for Aulwickeln portions of the protective film after its detachment from the material wherein the storage roll (9) is driven by an Aulwickelbewegung the at least one Schutzfblienaufwickei-roll (10,11). 2. changeable magazine according to claim 1, characterized in that between the storage roller (9) and the protective film winding roll (10,11) at least one peeling device (12,13) for detaching the protective film is provided by the material. 3. changeable magazine according to claim 2, characterized in that the Abschälvorrichtung (12,13) is coated with a non-stick coating coated guide (15) for the liberated from the protective material material isL 4. changing magazine according to one of claims 1 to 3, characterized in that between the Spetcherroile (9) and the at least one peeling device (12,13) of the at least one SchutzfblienaufwickeiroNe (10,11) at least one guide roller (14) for guiding and deflection of the material still provided with the protective film is provided in a vertical direction 5. changing magazine according to claim 4, characterized in that on the at least one deflection roller (14), a rotary encoder is arranged. 25/04/2012 13:13 No .: R994 P.015 / 027 13:12:36 25-04-2012 IG / 27 8S3 »·· ♦ • Μ ♦ * 2 6. changeable magazine according to claim 5, characterized in that it comprises at least one brake (16) for braking the storage roller (9). 7. Device (2) for laying foil-like material in a mold (3, 4), characterized in that it comprises a removable magazine (8) according to one of claims 1 to 6 aulweist. 8. The device according to claim 7, characterized in that it comprises at least one flexible pressing device (18) in order to press the material freed from the protective film into a predetermined shape (3, 4). 9. Apparatus according to claim 8, characterized in that between the exchange magazine (8) and the flexible pressure device (18) at least one Umienkvorrichtung (19) is provided to the from the changer magazine (8) exiting material in the direction of the pressing device (18) to lead. 10. The device according to claim 9, characterized in that it comprises a cutting device (20) for burning off the material 11. Device according to one of claims 8 to 10, characterized in that in the conveying direction of the material in front of the pressing device (18) arranged and one of the Umienkvorrichtung (19) in the direction of the pressing device (18) diverted front portion of the material supporting support (21 ) is provided. 12. The device according to claim 11, characterized in that the support (21) in the direction of the pressing device (18) and vice versa is displaceable. 13. The apparatus of claim 11 or 12, characterized in that the support (21) has a plurality of mutually parallel bars, the M9fM9fne * no 25/04/2012 13:13 No .: R994 P. 016/027 853 13:13 : 12 25-04-2012 17/27 »* · · · ·· ♦» * · »· * * · t II« · * • »· ···························································································································································································································································· required front portion of the material are provided. 14. The apparatus according to claim 13, characterized in that the rods are designed as hollow rods and have suction openings for sucking the material. 15. Device according to one of claim 13 or 14, characterized in that the pressing device (18) facing end portions of the rods are conical and have rounded tips. Fill Company m.b.H. through lawyers! Burger & Partner rart Lawyer GmbH N2012 / Q5300 25/04/2012 13:14 No .: R994 P.017 / 027