ES2395504T3 - Device and procedure for cutting woven and non-woven fabric material in the form of a sheet or in the form of a strip that allows the passage of air - Google Patents

Abstract

Device for cutting textile bands of fiberglass or carbon fiber in gross patterns with extended extended preference, with a support of the material, with at least one knife-holder head that carries a decorte blade, which is mobile in a controlled way at a distance generally constant from the support of the material in the direction of an X-axis and of a Y-axis of an orthogonal coordinate system on a textile strip of glass or carbon fibers resting on the support of the material, as well as with the less a fastener, which holds the textile band of glass fibers or carbon fibers resting against the support of the material, characterized in that the knife-holder head (22) is movable in the direction of the Y-axis in relation to the fastener (26), so that the cutting blade (24) moves along the fastener (26).

Description

Device and procedure for cutting woven and non-woven fabric material in the form of a sheet or in the form of a strip that allows the passage of air

The invention relates to a device for cutting textile fiberglass or carbon fiber bands in preferably extended elongated gross patterns, with a support of the material, with at least one knife holder head carrying a cutting blade, which is mobile in a controlled manner at a generally constant distance from the support of the material in the direction of an X-axis and a Y-axis of an orthogonal coordinate system on a textile band of glass fibers or carbon fibers resting on the support of the material, as well as with at least one fastener, which retains the textile band of glass fibers or carbon fibers resting against the support of the material. The invention also relates to a process for cutting textile bands of glass fibers or carbon fibers in preferably extended elongated gross patterns, in which the textile band of glass fibers or carbon fibers is cut resting on a support of the material, at least one blade holder head equipped with a cutting blade being moved in a controlled manner at a generally constant distance from the support of the material in the direction of an X-axis of a Y-axis of a coordinate system orthogonal on the textile band of glass fibers or carbon fibers, which is pressed by at least one fastener against the support of the material.

From GB 1 332 518 a device for cutting woven material is already known, in which the cutting blade is rotatable about an axis perpendicular to the plane of a support of the material, so that it is aligned during the cutting of curves tangentially to the curves. The cutting blade is retained by a knife holder head, which can be moved in a controlled manner separated parallel to the plane of the material support in two directions perpendicular to each other, to move the cutting blade with two degrees of freedom of movement along the edges of the desired gross patterns on the textile material. To this end, the knife holder head moves in the direction of a coordinate axis of an orthogonal coordinate system along a crossbar, which moves in the direction of the other coordinate axis of the coordinate system on the material support. .

Furthermore, a similar device of the type mentioned at the beginning is known from document US 5 216 614, in which a fastener in the form of a clamping leg that surrounds the cutting blade is fixed in the knife holder head and moves together with this on the material to be cut.

In addition, a device for cutting flexible soft flat work pieces is known from EP 1 275 478 B1, in which the blade holder head carries on both sides of the cutting blade a fastener in the form of a conical roller of Pressure. The pressure rollers are rotatable in each case around an inclined axis with respect to the support of the material, to approximate the fasteners as closely as possible to the cutting blade.

To cut larger amounts of band-shaped or arc-shaped material that lets air through, such as textile materials for lining pieces, the material is often covered before cutting into several overlapping layers on a support of the material plane that can be driven with negative pressure and that covers the highest material layer with a sheet that lets air through, to press and retain the layers of material through the negative pressure applied against the support of the material, while the layers of material and the sheet are separated in common with the help of a cutting blade, as published, for example, in DE 196 046 16 A1.

However, when the material to be cut is a textile band of glass fibers and carbon fibers that lets the air pass, it must be used in a cut form, for example, in the construction of wind energy facilities for manufacture of glass fiber reinforced plastic rotor blades or in the construction of airplanes for the manufacture of transverse rudders or of lateral rudders of carbon fiber reinforced plastic, at least a part of the raw patterns frequently have a length very big. In this way, on the one hand, the support of the material must also have a very large length, which results in a need for large device space. On the other hand, the large length of the raw patterns makes it necessary to place the individual layers of the material and of the cover sheet by hand on the support of the material, to avoid the formation of folds and after cutting remove the raw patterns also from again individually with the hand out of the gross patterns that are under or the support of the material, which results in a very large manual labor expense.

Starting from here, the invention has the task of improving a device of the type mentioned at the beginning in order to reduce the need for space and / or can increase the degree of automation during the cutting of the material.

This task is solved in the device according to the invention because the knife holder head is not retained in a fixed position relation with respect to the fastener, but instead moves in the direction of the Y-axis with respect to the fastener, moving the cutting blade during the entire cutting process in the immediate proximity of the fastener along it. With immediate proximity, a distance of less than 60 mm, better than 50 mm and preferably between 50 and 25 mm is designated within the framework of the present patent application.

Through the features according to the invention, the textile band of glass fibers and carbon fibers can be pressed on the one hand by the fastener on a larger surface against the support of the material. This

5 allows the textile band of glass fibers and carbon fibers to be made at the same time with several cutting blades, so that the fastener also prevents the formation of folds in the textile band of glass fibers and carbon fibers when The blade holders equipped with the cutting blades move one over the other.

On the other hand, the or each fastener can not only serve to retain the textile band of glass fibers and fibers of

10 carbon in the immediate proximity of a single cutting blade resting against the support of the material, but it can fulfill this purpose at the same time for several cutting blades.

The invention is based on the idea of not superimposing several layers of the material to be cut and then cut them, but in each case only an individual layer of the textile band of glass fibers and carbon fibers. To avoid a reduction in production, the device is provided according to a configuration

15 of the invention with a plurality of knife-holder heads, which can preferably be activated individually, that is, separated from each other and whose cutting blades fit the material along one or preferably several fasteners, so that this material can be cut at the same time with the cutting blades of all the blade holder heads.

The address designated under the present patent application as the Y-axis address, in which the

20 blade holder head is movable with respect to the fastener, preferably extends transversely over the textile band of glass fibers and carbon fibers to be cut. In the other of the two directions perpendicular to each other, that is, in the direction of the X-axis, on the other hand, the fastener and the knife holder head are moved advantageously in common with respect to the textile fiberglass band and carbon fibers that are on the support of the material in its longitudinal direction, so that the cote blade moves

25 conveniently at a predetermined distance in front or behind the fastener.

To make it possible to modify the cutting direction of the cutting blade, the knife holder head is rotatable, with advantage in a controlled manner, around a Z-axis perpendicular to the X-axis and the Y-axis. The cutting blade is conveniently an ultrasound cutting blade.

To prevent the formation of folds in the textile band of glass fibers and carbon fibers, when the fastener

30 moves in the direction of the X-axis on the textile material of the web, the fastener advantageously presents at least one clamping pressure element resting against the textile material of the web and rolling on the textile material, such as for example a roller or a belt guided on rollers and / or sliding surfaces. Rolling of the clamping pressure element can be caused either through the relative movement between the fastener and the textile band, or with the help of a drive, which drives the clamping pressure element with

35 a speed corresponding to the speed of relative movement.

An advantageous configuration of the invention provides that the fastener has an extended elongated shape and extends in the direction of the Y-axis on the support of the material. In principle, in effect, an individual fastener could be used, which is provided in its longitudinal direction with a narrow groove or gap, in which the material to be quoted is free, so that it can be cut by the blade (s) of cutting movable along the groove 40 or the gap, but is pressed on both sides of the groove or gap by the fastener against the support of the material. However, two separate elongated extended fasteners are preferably used, which are preferably arranged in front of or behind the cutting blade and are aligned parallel to each other and with respect to the Y-axis, delimiting each other in the same way a groove or interstitium, in which the cutting blade is movable in the direction of the Y-axis. It is important that the material to be cut is pressed on two sides

45 opposite of each cutting blade on a pressure surface greater than the material support, the size of the pressure surface itself being a function of the type and shape of the fasteners.

In order to keep the space requirement of the device reduced, it preferably comprises a stationary cutting station, through which the textile band of glass fibers and carbon fibers moves in the

50 direction of the X-axis and in this case at the same time it is cut with a plurality of cutting blades. The fasteners of the cutting station are then preferably stationary, being arranged along the X-axis at distances and narrowing each other narrow interstices that extend along the Y-axis, through which they can be move the cutting blades of the blade holder heads in the direction of the Y-axis.

In this case, the material support advantageously comprises a support element provided with a

55 Support surface for the textile band of glass fibers and carbon fibers, which moves together with the textile band of glass fibers and carbon fibers through the stationary cutting station. To prevent the formation of folds, the clamping pressure elements of the fasteners are operated here in a manner

Convenient with the same speed as the transport element. Where a support of the flat material is provided, the transport element can be conveniently formed by a transport member driven from an endless conveyor. However, a curved support of the material can also be provided with a transport element in the form of a rotating roller, on whose circumferential surface the textile band of glass fibers and carbon fibers rests. So that it moves under the rotation of the cylinder through the stationary cutting station.

However, additionally or alternatively a mobile cutting station can also be provided, which can be moved in the direction of the X-axis on the textile web of glass fibers and carbon fibers deposited on a stationary support table or on a Transport organ of an endless conveyor. In this case, the blade holder heads are preferably movable together with the fasteners in the direction of the X-axis and separated from the fasteners in the Y-direction under control over the support table.

The removal of the raw patterns cut from the upper side of the support of the material is preferably automated in the same way totally or partially, the raw patterns cut in a winding station individually on winding bushings being wound. In the event that the material support comprises a mobile transport element, such as an endless conveyor, the winding station is preferably stationary and is located at one of the front ends of an additional transport element, for example of another endless conveyor, which is arranged in the direction of the movement of the textile web of glass fibers and carbon fibers between the transport element of the material support and the winding station or is connected to the element of transport of the support of the material, so that the winding of the raw patterns can be carried out independently of the processing speed in the cutting station. In the case of a stationary support of the material, on the other hand, a mobile winding station can be used, which can be moved to receive the raw patterns on the raw patterns that are on the material support.

To enable the winding of two adjacent gross patterns without problems on two separate winding bushings also when an incision separating the two gross patterns is not aligned parallel but, for example, under an angle with respect to the longitudinal median axis of the textile web of glass fibers and carbon fibers and, therefore, one of the scallops formed during the coiling of the raw patterns gradually widens and the other gradually narrows, another preferred advantageous configuration of the invention provides that the winding station comprises for the coupling of the winding bushings at least two winding mandrels, whose rotation axes have a distance from each other. For winding the raw patterns on the winding bushings the winding bushings are conveniently moved in rotation, their winding mandrels being driven with motor.

In the process according to the invention, the textile web of glass fibers and carbon fibers resting on the support of the material together with at least a part of the support of the material can be moved through a cutting station stationary fixed, where it is pressed by at least one fastener against the support of the material and is cut with the cutting blade of at least one blade holder head, and / or a mobile cutting station, which comprises at least one carrier head blades and at least one fastener, can be moved on the textile band of glass fibers and carbon fibers that rests on the support of the material, which is pressed by at least one fastener against the support of the material and is cut with the blade cutting Conveniently, both a stationary fixed cutting station and a mobile cote station are provided, in which the textile band of glass fibers and carbon fibers is partially cut in each case. In this case, long incisions are made that extend, in general, in the X-direction with preference in the stationary cutting station and shorter incisions are made, which extend, in general, in the Y-direction with preference in The mobile cutting station.

The invention is described in detail below with the help of some embodiments shown in the drawing. In this case:

Figure 1 shows a schematic perspective representation of a device for cutting glass fiber fabric in the form of a band or veil of glass fibers in elongated extended gross patterns.

Figure 2 shows a side view of the device of Figure 1.

Figure 3 shows an enlarged representation of a stationary cutting station of the device of Figure 1.

Figure 4 shows an enlarged representation of a fragment of Figure 2.

Figure 5 shows a schematic perspective representation of a modified device.

Figure 6 shows a perspective view of an installation, which comprises, in addition to the stationary cutting station of the device of Figure 1, a winding station for the unwinding of the glass fiber fabric or the glass fiber veil in the form of band and a winding station for the coiling of the raw patterns.

Figure 7 shows an enlarged perspective view of the cutting station and the winding station.

Figure 8 shows a side view of the cutting station and the unwinding station of Figure 7.

Figure 9 shows an enlarged perspective view of the winding station.

5 Figure 10 shows a side view of the winding station of Figure 9.

The device 10 shown in FIG. 1 is used to cut a band 12 of a glass fiber fabric or a glass fiber veil at the same time in a plurality of extended elongated narrow gross patterns 14, which are then applied in the manufacture of plastic rotor blades reinforced with glass fibers, as needed, for example, for wind power installations.

The device 10 shown in Figures 1 to 4 comprises a support of the material 16, on which the band 12 to be cut during the cutting rests, as well as a first and a second cutting station 18, 20. The two cutting stations 18, 20 comprise a plurality of blade holder heads 22, which are movable relative to the band 12 resting on the support of the material 16 in a controlled manner in the direction of an X-axis and in the direction of a Y-axis of an orthogonal coordinate system and carry in each case a blade of

15 ultrasound cutting 24, which can be engaged in engagement with the band 12, to restrict it through relative movements between the knife holder heads 22 and the band 12 in the individual gross patterns 14. Each of the two cutting stations 18, 20 further comprises at least two fasteners 26, which can be pressed from above against the band 12 resting on the support of the material 16, to retain them superficially in the immediate proximity of the blades of cut 24 resting against the support of the material 16 and to avoid a

20 fold formation in the band 12.

As shown in Figure 4, the support of the material 16 is essentially constituted by an extended extended support table 28 and by an endless conveyor 30 with an endless conveyor 32 driven in a surrounding manner in the longitudinal direction around the support table 28, whose upper transport branch 34 moves in the direction of movement of the band 12 on the upper side of the table

25 support 28 and whose empty lower branch 36 is driven back under the support table 28. The endless conveyor 30 has two deflection rollers 38, 40 for the conveyor belt 32, which can be driven by means of two rotary drives (not shown) with optionally controllable speed with a desired turning speed, to move the conveyor belt 32 back and forth with the belt 12 resting on its upper side in the direction of the X-axis.

30 Each of the blade holder heads 22 has a controllable drive, with which the corresponding cutting blade 24 can be rotated around a Z-axis perpendicular to the upper side of the material support 16 and move in the direction of the axis -Z, so that the cutting blade 24 can be aligned, on the one hand, always in the cutting direction and, on the other hand, can be adjusted vertically in the direction of the support of the material 16 to bring it into engagement with the band 12.

35 In the cutting blades 24 these are ultrasound cutting blades, which move to cut in ultrasound oscillations to facilitate cutting. The ultrasound cutting blades are known per se and, therefore, should not be explained here in detail.

As best represented in FIG. 1, each of the flattened extended fasteners 26 extends in the direction of the Y-axis over the entire width of the band 12. Between two adjacent fasteners 26 each case is arranged in two case heads. blades 22, which are carried by a common sleeper 42 (Figure 4), which extends in the center between adjacent fasteners 26 in the direction of the Y-axis on the support of the material 16. The knife-holder heads 22 placed on each sleeper 42 are individually and independently movable along each other along the crossbar 42 and can be rotated individually by means of their controllable drive relative to the crosspiece 42 around the Z-axis, to actively follow its cutting blade 24 the

45 respective cutting direction. The number of the blade heads 22 movable in a sleeper 42 may be one, as in the cutting station 20, two, as in the cutting station 18 or, if necessary, also more than two.

As shown by way of example in Figures 3 and 4, the fasteners 26 comprise, respectively, a plurality of parallel belts 44, which extend at a reduced lateral distance from each other on a series of rotating rollers 46, 48, whose axes They are aligned parallel to each other and parallel to the Y-axis. The rollers 46, 48 50 are arranged in such a way that the fasteners 26 have in the cross section the contour of a triangle with a rounded tip, whose base surface is aligned parallel to the support of the material 16 and has in the direction of the axis X a width of more than 200 mm. One of the respective rollers 48 has a larger diameter and can be driven by means of a rotary drive (not shown) with variable speed and reversible direction of rotation. The rotary drives of the driven rollers 48 of the fasteners 55 26 and the rotary drives of the articulation rollers 38, 40 of the conveyor if end 30 are connected

with a common control, whereby they are activated in such a way that the speed of movement and the direction of movement of the belts 44 corresponds to the speed of movement and the direction of movement of the conveyor belt 32, to avoid any relative movement between the fasteners 26 that rest against the upper side of the belt 12 and the conveyor belt 32 that rests on the lower side of the belt 12.

5 The parallel fasteners 26 are arranged a short distance from each other in the direction of the X-axis, so that between the adjacent fasteners 26 only interstitial grooves 50 with a width of approximately 100 mm are present, in which it is free the band 12 to cut. During the movement of the knife holder heads 22 along the sleepers 42, their cutting blades 24 move, respectively, along one of these interstices 50, so that the distance of the cutting blades 24 from both

10 adjacent fasteners 26 along the entire movement path of the cutting blades 24 is advantageously less than 30 mm and at most approximately 60 mm.

The first cutting station 18 is a stationary cutting station 18, in which both the fasteners 26 and the sleepers 42 which serve as a fixing support for the blade holder heads 24 are immobile in relation to the material support measure 28 and in relation to each other. In this cutting station 18, 15 long incisions are preferably made through the glass fiber fabric or the glass fiber veil, which extend parallel or at an acute angle with respect to the X-axis, to separate the gross patterns 14 extended elongated placed adjacent along its longitudinal side edges 51 of the rest of the band 12. In the exemplary embodiment shown in the drawing, the cutting station 18 has, in total, eight blade-holder heads 22, so which at the same time can be cut four gross patterns 14 extended elongated from the band

20 12, whose longitudinal side edges 51 are arranged at a distance from each other.

To cut the band 12 in the direction of the X-axis, the deflection rollers 38, 40 of the endless conveyor 30 and the driving rollers 48 of the fasteners 26 are driven here, to move the band 12 through a synchronized movement of the conveyor belt 32 and the belt 44 in relation to the cutting blades 24. When the incisions must extend in relation to the X-axis under an angle of inclination, the heads

25 blades 24 move at the same time between the two adjacent fasteners 26 in the direction of this inclination along the Y-axis, so that they move, seen in general, under the angle of inclination on the band 12. In addition, The cutting blade 24 of each blade holder head 22 is rotated by means of the controllable actuation of the blade holder head 22 around the Z-axis, to align it in the cutting direction.

The second cutting station 20 is a mobile cutting station, which is movable with the help of a

30 drive (not shown) connected with the control and activated by it in the direction of the X-axis on the support table of the material 28. The second cutting station 20 preferably serves to make straight and / or curved incisions more short, which extend, in general, in the Y-direction through the band 12, whose incisions separate the extended elongated gross patterns 14 at their front ends 52 from the rest of the band 12. According to the shorter length of these incisions is enough in the second season of

35 cutting 20 a smaller number of blade holder heads 22, such as one, for making these incisions in the first cutting station 18. In the device 10 shown in the drawing, the stationary cutting station 18 is arranged in the direction of movement of the band 12 behind the mobile cutting station 20, but the arrangement can also be reversed.

When the incisions must be made at the same time in the stationary cutting station and in the station of

40 mobile cutting 18, 20, the control calculates the movement necessary for this of the mobile cutting station 20 in the direction of the X-axis based on the momentary movement of the band 12 in this direction and then controls the movement of the carrier head blades 24 or of the blade holder heads 22 of the mobile cutting station 20 in the Y-direction according to the superposition of the movements of the cutting station 20 and of the band 12 in the direction of the X-axis.

45 Alternatively, it is also possible to make the incisions in the mobile cutting station 20 during a stop of the conveyor belt 32 in the band 12, to simplify the calculation. In this case, the knife holder head 24 of the mobile cutting station 20 moves in the direction of the Y-axis, while the entire cutting station 20, including the cross member 42 (not shown) and the fasteners 26, is moves in the direction of the X-axis, the movement speeds being synchronized with each other according to the desired cutting direction and being

50 align the cutting blade 24 through the rotation of the blade holder head 22 around the Z-axis in the cutting direction.

To support the pressing pressure of the band 12 against the support of the material 16, the support table 28 can be driven with a negative pressure, which is applied through holes in the upper side of the support table 28 and through the conveyor belt 32 that lets air through the belt resting on the upper side of the

55 conveyor belt 32.

Figure 5 shows a part of a modified device 10, in which the support of the material 16 is formed by a roller 54 rotatably driven, against whose circumferential surface 56 the band 12 is supported to be cut on

a small circumferential angle of less than 20 degrees, to prevent in bands 12 of a glass fiber fabric an expansion of the cut tissue. The blade holder head 22 shown by way of example of a stationary cutting station 18 is movable in the direction of the Y-axis parallel to the axis of rotation of the roller 54 through a narrow extended gap 50 elongated between two adjacent fasteners 26. The fasteners 26 are constituted here by several rollers 58, only one of which is represented, respectively, on both sides of the cutting blade 24. The rollers 58 have a smaller diameter compared to the diameter of the roller 54 and shafts of rotation parallel to the axis of rotation of the roller 54 and serve to press the band 12 in the direction of the X-axis on both sides of the cutting blade 24 or of the gap 50 against the cylindrical circumferential surface of the roller

54

Figure 6 shows an installation 60, comprising a unwinding station 64 equipped with two reserve rollers 62 of the web-shaped glass fiber fabric 12, a stationary cutting station 18 for cutting the web of fabric 12 unwound into patterns individual gross 14 and a winding station 66 for winding the gross patterns 14, which are arranged one behind the other in the direction of movement of the web 12 or the raw patterns 14 (arrow A) at X-axis length

As best represented in Figures 7 and 8, the unwinding station 64 comprises two bearing supports 68 arranged one behind the other above the support of the material 16 and resting on a stationary support frame 74, on which it is housed. one of the reserve rolls 62 is rotatably shaped in each case. Each bearing support 68 also has a rotating deflection roller 70 disposed below the reserve roll 62, which ensures that the web 12 is resting at a reduced distance. behind the unwind station 64 on a conveyor belt of an endless conveyor 82 of the unwind station 64, the configuration of which essentially corresponds to that of the endless conveyor 30.

Unlike Figures 1 and 2, the stationary cutting station 18, represented in Figures 6 and 7 is arranged in the direction of movement of the fabric band 12 in front of the mobile cutting station 20, whose crosspiece 42 is movable together with the blade holder head 22 and the two fasteners 26 in the direction of the double arrow B in Figure 7 facing a stationary support frame 72 of the two cutting stations 18, 20.

In the installation 60 shown in FIG. 6, other endless conveyors 76, 78, 80 are connected successively to the endless conveyor 30 of the support of the material 16, whose configuration corresponds essentially in the same way to the endless conveyor configuration 30. The endless conveyors 76, 78, 80 are mounted, as are the endless conveyors 30 and 82, on support frames, so that the upper sides of the transport branches of all the endless conveyors 30, 76 , 78, 80, 82 are in a horizontal plane. The respective adjacent deflection rollers 38, 40 of endless conveyors 82, 30; 30, 76; 76, 78; 78, 80 consecutive are facing a reduced distance, as shown by way of example in Figure 8.

The endless conveyors 76, 80, 82 serve to transport the raw patterns 14, which leave from the cutting stations 18, 20, to the stationary winding station 66, which is arranged at the front end, away from the cutting stations 18, 20 of the last endless conveyor 80 in the direction of movement. Through the use of several endless conveyors 76, 78, 80, the movement speed of the raw patterns 14 at the winding station 66 can be decoupled from the speed of movement of the band 12 and the raw patterns 14 in the cutting stations 18, 20.

As best represented in FIGS. 9 and 10, the winding station 66 is essentially constituted by a vertical housing 84 arranged behind the deflection roller 38 of the endless conveyor 80 next to the endless conveyor 80, by a rotary drive (not visible ) disposed inside the housing 84, and by two winding mandrels 86, 88 that can be operated by means of the rotary drive, which project freely overhang on the side of the housing 84 which is adjacent to the endless conveyor 80 The cylindrical winding mandrels 86, 88 are arranged at a distance from each other in the vertical direction, one 86 of the two winding mandrels 86, 88 being slightly above and the other 88 slightly below the endless conveyor 80. The two winding mandrels 86, 88 have horizontal rotation axes, which are aligned parallel to the rotation axis of the deflection roller adjacent ion 38 of the endless conveyor 80.

Each of the two winding mandrels 86, 88 can be equipped with a plurality of hollow cylindrical winding bushings 90 (only two shown), which are coupled from free ends of the winding mandrels 86, 88 on these and connected fixedly against rotation with the winding mandrels 86, 88, for example through a groove and tongue connection in positive connection. At least in the cases, in which all or a part of the longitudinal lateral edges 51 of the gross patterns 14 are not aligned parallel to a longitudinal median axis of the endless conveyor 80, the winding bushings 90 are used, which serve to the winding of adjacent gross patterns 14 laterally, alternating on the upper winding mandrel and the lower winding mandrel 86 and 88, respectively, so that the two raw patterns 14 can be wound, despite an overlap of the front front end of one of the gross patterns 14 with the rear front end of the other cut 14, without impediments on the corresponding winding bush 90. By virtue of the assembly of the winding bush 90 of adjacent gross patterns 14 on different winding mandrels 86, 88, the length of the winding bushings 90 may in each case be slightly greater than the maximum width of the cut 14 that is wound on the winding bush 90.

The winding bushings 90 are provided on their outer periphery with flat clamping devices 92, with

5 whose support can be attached to a front front end of an adjacent cut 14, which rests on the endless conveyor 80, removably in one of the winding bushings 90. After winding the cut 14 the winding bushing can be removed 90 together with the wound cut out of the winding mandrel 86, 88 until it is deposited for later use of the cut 14 in an intermediate warehouse.

10 The two winding mandrels 86, 88 and the winding bushings 90 mounted on the winding mandrels 86, 88 are actuated by the rotary drive of the winding station, respectively with the same direction of rotation and the same number of revolutions. The number of revolutions is regulated by a common control of the rotary drive and the endless conveyor 80 as a function of the increasing winding diameter of the raw patterns 14 wound on the winding bushings 86, 88, such that the

15 circumferential speed of the outermost layer of the winding corresponds to the speed of movement of the endless conveyor 80.

To avoid the need for a measurement of the diameter of the winding, it can be calculated with sufficient accuracy from the number of revolutions of the winding mandrels 86, 88 after the start of the winding or the thickness of the material of the cut 14 wound. Eventually, the number of 20 revolutions of the winding mandrels 86, 88 can then be adjusted so that it is insignificantly greater than the number of revolutions determined on the basis of this calculation. This leads, in effect, to a smaller relative movement between the endless conveyor 80 and the raw patterns 14, which are thus extracted in the direction of the arrow A in Figure 6 slowly from the endless conveyor 80. No However, any jamming of the raw patterns 14 in front of the winding station can be safely prevented

25 66.

As best represented in FIG. 10, under the deflection roller 38 of the endless conveyor 80 is a collecting tray 94. The collecting tray 94 serves to receive eventual cutting debris 96 that occurs between the raw patterns 14, and which fall or fall as a result of the movement of the endless conveyor 80 directly in the collecting tray 94, are diverted by the service personnel to the

30 collector tray 94 or can be discarded in the case of smaller parts to the collector tray 94.

Claims (12)

1.-Device for cutting textile fiberglass or carbon fiber bands in preferably extended elongated gross patterns, with a support of the material, with at least one knife-holder head carrying a cutting blade, which is mobile from controlled form at a generally constant distance from the material support in the 5 direction of an X-axis and a Y-axis of an orthogonal coordinate system on a textile band of glass fibers or carbon fibers resting on the support of the material, as well as with at least one fastener, which retains the textile band of glass fibers or carbon fibers resting against the support of the material, characterized in that the knife-holder head (22) is movable in the direction of the Y-axis in relation to the fastener (26), so that the Cutting blade (24) moves along the fastener (26). 10. Device according to claim 1, characterized in that the cutting blade (24) moves during the movement of the knife holder head (22) relative to the fastener (26) along a defined gap (50) on both sides by the bra (26). 3. Device according to claim 1 or 2, characterized in that the fastener (26) has at least one clamping pressure element (44, 58) that rolls on the textile band of glass fibers or carbon fibers (12 ). Device according to claim 3, characterized in that the clamping pressure element is a belt (44) guided on a plurality of rollers (46, 48), or on a roller (58). 5. Device according to claim 3 or 4, characterized in that the clamping pressure element (44, 58) has a drive, which drives the clamping pressure element (44, 58) with a speed corresponding to the relative movement speed of the textile fiberglass or carbon fiber web (12) 20 in relation to the bra (26). 6. Device according to one of the preceding claims, characterized in that the knife holder head (22) is actively rotating around a Z-axis perpendicular to the X-axis and the Y-axis. 7. Device according to one of the preceding claims, characterized by a plurality of individually controlled knife holder heads (22) and by a plurality of fasteners (26), the movable ones being movable. 25 blade holder heads (22), respectively, in a gap (50) between adjacent fasteners (26) in the direction of the Y-axis. 8. Device according to one of the preceding claims, characterized by a stationary cutting station (18), through which the textile band of glass fibers or carbon fibers (12) moves in the direction of the X-axis and at the same time cut with several cutting blades (24). Device according to claim 8, characterized in that the support of the material (16) comprises a transport element (32, 54) provided with a support surface for the textile band of glass fibers or carbon fibers (12), which moves together with the textile band of glass fibers and carbon fibers (12) through the cutting station (18), and because a clamping pressure element (44, 58), which wheel on the textile band of glass fibers and carbon fibers (12), of the fastener (26) moves at the same speed as the element of 35 transport (32, 54). 10. Device according to one of the preceding claims, characterized by a mobile cutting station (20), comprising at least one blade holder head (22) and at least one fastener (26) and is movable in the direction of the X-axis on the textile band of glass fibers and carbon fibers (12). 11. Device according to claim 10, characterized in that the fastener (26) and the blade holder 40 (22) are movable with separate drives in common in the direction of the X-axis. 12. Device according to one of the preceding claims, characterized by a common control unit for controlling the relative movements of the knife holder head (22) and the fastener (26) in the direction of the textile fiber web of glass and carbon fiber (12). 13. Device according to one of the preceding claims, characterized by a station of 45 winding (66) for winding the cut (14) cut, in which the winding station (66) comprises at least two winding mandrels (86, 88) that can be rotatably actuated. 14. Device according to claim 13, characterized in that the rotational speed of the winding mandrels (86, 88) rotatably synchronized in common with the movement speed of a transport element (80) that serves for feeding the raw patterns (14) to the station 50 winding (66). 15.- Procedure for cutting textile bands of glass fibers or carbon fibers in preferably extended elongated gross patterns, in which the textile band of glass fibers or carbon fibers is cut resting on a support of the material, being controlled movement of at least one blade holder head equipped with a cutting blade at a generally constant distance from the material support in the direction of an X-axis of a Y-axis of an orthogonal coordinate system on the textile web of glass fibers or carbon fibers, which is pressed by at least one fastener against the support of the material, characterized in that the knife holder head (22) is movable in the direction of the Y-axis in relation to the fastener (26), so that the cutting blade (24) moves along the fastener (26).