• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention comprises a device (1) for producing a semifinished fiber product (11), wherein a fiber strand (5) is wound on a lower tool (2) via pins (4) and optionally an upper tool of the fiber strand (5) and severed by cutting devices (8) becomes. The present invention further relates to a method for producing a semi-finished fiber product (11) with a device (1) according to the invention.
    公开号:AT514825A2
    申请号:T50616/2014
    申请日:2014-09-08
    公开日:2015-04-15
    发明作者:Stefan Konrad；Martin Düker
    申请人:Benteler Automobiltechnik Gmbh；
    IPC主号:
    专利说明:

    Apparatus and method for producing a fiber stick
    The present invention relates to a device and a method for producing a semi-finished fiber product,
    From the prior art it is known to produce automotive components made of fiber composite material. For this purpose, for example, a roof skin, a hood or even motor vehicle structural components such as a B-column of fiber composite materials are produced. The fiber composite material consists of a fiber material, mostly glass fibers, carbon fibers but also aramid fibers, metal fibers or other fiber types, which are mixed with a matrix resin and thus form the fiber composite material. The matrix resin then cures so that a given mold into which the fiber composite has been pressed is permanently retained and the component maintains its required strength. The fiber material itself is usually provided in mat form or fabric form and accordingly trimmed at the edge with a contour of the component to be produced with a projection. Here, however, it is disadvantageous that a correspondingly high proportion of waste is obtained, which leads in particular when using high-quality and expensive fibers to a not insignificant increase in the cost of the production process.
    Furthermore, DE 10 2010 015 199 A1 discloses a method for producing a fiber blank, wherein initially a three-dimensionally shaped tool carrier is provided and then with the aid of a laying head a fiber bundle is respectively laid over the tool carrier and fixed on the edge of the tool carrier. The fibers may then optionally be trimmed at the edge after the fixing operation, whereupon a new laying operation takes place. This method is optimized with respect to the resulting in the manufacturing process section so that only a small production waste is obtained. However, the method is complicated in that after each depositing operation with the aid of a corresponding cutting device, the deposited fiber or the deposited fiber bundle has to be severed and the fibers have to be deposited three-dimensionally. DE 42 34 083 A1 and US Pat. No. 6,609,964 B1 disclose devices for laying threads, in each of which fibers are deposited on a round disk with pins.
    It is therefore an object of the present invention, starting from the state of the art, to show an apparatus and a method with which it is possible to manufacture a fiber blank quickly and cost-efficiently.
    The aforementioned object is achieved with a device for producing a semi-finished fiber product according to the features in claim 1.
    The procedural part is further achieved according to the invention with a method for producing a semi-finished fiber product according to the features in the patent claim 10.
    Advantageous embodiments of the present invention are the subject of the dependent claims.
    The device for producing a semi-finished fiber product, the device having a lower tool and arranged on the lower tool pins for wrapping a strand of fiber and for forming a flat semi-finished fiber in an inner region of the lower tool is according to the invention characterized in that the lower tool is adapted to the contour of the component to be manufactured and an upper tool and cutting devices are provided on the lower tool and / or the upper tool which truncate the fiber strands, correspondingly associated with each cutter is a cutting device such that when the lower tool and upper tool are closed, the fiber strands wound around the pin are severable. In the context of the invention, the outer contour is thus produced in accordance with a sub-tool, which is formed projecting above the outer contour of the component. Pins are then attached to the lower tool and protrude with respect to the lower tool, with a fiber strand being subsequently wound around the pins, so that a semi-finished semi-finished fiber material is formed in the interior of the lower tool for the component to be produced later. Fiber strands in the form of rovings or fiber bundles can also be wound around the pins. Hereby, it is first possible to supply the semifinished fiber product with an endless fiber strand, wherein the actual depositing process or winding process is fast and effective, especially with a laying head, very particular preferably with a 2D-head, is executable. By virtue of the fact that the lower tool is adapted according to the invention to the contour of the component to be produced, which may mean that it is slightly projecting beyond it, excess fiber material, which would occur as waste in the subsequent trimming, is reduced as far as possible.
    In order that now after the winding process, the fiber strands laid to the flat semi-finished fiber products remain fixed in their relative position to one another, it is provided that the fiber strands are adhesively coupled to one another in the region of the clamping frame. Here, an existing in the fiber strand
    Binder or matrix resin, for example, be activated due to thermal action. An additional or alternative solution is stitching.
    Then it is further provided according to the invention that cutting devices are provided on the lower tool itself and / or on the upper tool, with which it is possible zuzüneiden the fiber strands in a lowering and / or shortly after the lowering process between the lower tool and upper tool so that then the finished semi-finished fiber from the Frame can be taken and supplied to its further use. Cutting of each strand of fiber after the sheeting operation, as known in the art, is thereby avoided, thus dispensing with a laborious pruning operation which is very time consuming and costly.
    With the device according to the invention, it is possible to form two-dimensionally formed flat semifinished fiber products, as well as to preform these semi-finished fiber products two-dimensionally in blessing and subsequently three-dimensionally in accordance with the lowering process between the lower tool and the upper tool.
    However, in order for the winding process itself to be particularly easy to carry out initially, the pins are designed as pins, with these in particular having a geometry decreasing in longitudinal section toward a free end. Consequently, the pins or pins become thinner, narrower and / or smaller towards their free end, so that in particular a two-dimensionally movable laying head, the fiber strand can particularly easily descend around the pins. Inadvertent wiping is initially avoided due to the upward decreasing geometry so that the fiber strand is securely wrapped around the pin. Due to the subsequent lowering operation between the upper tool and the lower tool, the fiber strand is then stretched again due to the cross-sectional geometry of the pin or pin which increases towards the lower tool.
    Furthermore, particularly preferably, the pins have at their free end an abutment, in particular in the form of a cross-sectional enlargement. For example, the pins have a kind of ball head at their free end. This avoids that a thread already wound around the pin is moved by a further tensioning movement towards the free end of the pin or that it slides over the free end and thus is no longer stretched in its desired career.
    Furthermore, particularly preferably, the pins themselves are resiliently mounted on the lower tool. This allows the pin to yield slightly during the wrapping process so that a wound fiber strand does not rupture. Further, upon contact with the two-dimensional ply head, the peg is allowed to yield slightly, thus again ensuring that if the trajectory is not 100% trajectory, the fiber strand is still wrapped around the pin.
    Furthermore, particularly preferably, the lower tool is so protruding from the outer contour of the component to be produced that it projects beyond the component by 1 to 50%, in particular by 1 to 30%, particularly preferably by 1 to 20% and very particularly preferably by 1 to 10%. This makes it possible to perform the wrapping operation particularly quickly and to provide the fiber blank such that in a three-dimensional later forming process for producing the fiber composite component, lateral insertion of the fiber mat into the mold offers sufficient reserves such that the semifinished fiber is not too short side and still produce waste is kept low.
    Furthermore, particularly preferably, the lower tool and / or the upper tool are heated. Here, it is possible, in particular in the case of pre-impregnated fiber strands, to thermally activate the matrix resin and / or the adhesive present in the fiber strand by the thermal action so that the fiber strands are wound around the pins and fixed relative to one another. Furthermore, particularly preferably, a non-stick coating is applied to the lower tool and / or the upper tool, so that the fibers do not adhere to the lower tool and / or the upper tool during subsequent removal, and thus are particularly easily detachable from them.
    The cutting device according to the invention is further characterized in that a cutting device is correspondingly associated with each pin, so that the fiber strands respectively wound around the pin can be severed by the cutting device corresponding to the pin during the closing operation of the lower tool and the upper tool. In the context of the invention, this means that each pin has a single cutting device or that each pin is assigned a single or a separate cutting device. The cutting device is designed for this purpose in particular as a cutting blade or cutting blade, wherein the cutting device itself is designed to be decreasing in particular to its free Endehin. This in turn ensures that during a lowering process of the lower tool and the upper tool to each other, the cutting device with its decreasing or tip end behind the fiber strands is feasible and by the then increasing cross section tensioning the fiber strand, so that then comes to a separation process on further retraction.
    Particularly preferably, the cutting device is either formed opposite the pin as a separate component, such that the pin is present, for example, on the lower tool and then the cutting device is arranged on the upper tool and, when the upper tool and lower tool are moved, the cutting device cuts off the fiber strand wound around the pin. However, the cutting device can also be formed directly on the pin. In particular, this pen and cutting device are integrally formed and material uniform. In a lowering operation of the upper tool and lower tool, the fiber strand wound around the pin is then moved toward the cutting device formed on the pin and severed by the cutting device.
    In the context of the invention, a wrapping of a pin with a fiber strand is furthermore to be understood as meaning that the fiber strand does not necessarily have to be completely wound around the pin. Rather, it can also be understood by wrapping that the fiber strand is deflected by the pin or at least partially wrapped around the pin.
    However, according to the invention, it is also possible for the cutting devices to be moved separately from the upper tool and lower tool, and firstly the lower tool and the upper tool to fix the fiber strands to one another and then cut the cutting devices correspondingly into the fiber strands.
    In particular, the pins are hollow and semi-open in cross-section. The cutters themselves then enter the cavity and pass through the opening of the half-open cross-section of the pin. Upon further retraction, the cutter then protrudes from the outer circumferential surface of the pin, tightens and ultimately cuts through the fiber strand. For this purpose, the openings are directed in particular with respect to the lower tool to the outside, so that the same also a cutting tip or cutting edge of the cutting device is also directed outwards.
    The present invention further relates to a method for producing a semi-finished fiber product, wherein a device having at least one of the aforementioned features is used for carrying out the method and the method according to the invention comprises the following method steps: providing a lower tool adapted to the outer contour of the component to be produced, wrapping the pins of the lower tool with a fiber strand, so that a flat fiber semi-finished product is formed on the lower tool, - sticking the fiber strands together in the area of the lower tool and trimming the fiber strands, - removing the semi-finished fiber product.
    For the production of the Faserhaibzeuges it is thus possible to wind the lower tool with a winding head in such a way, in particular around the pins, that in the middle of a flat semi-finished fiber product is formed. The semifinished fiber product is then cut and between the upper tool and the lower tool, the fiber strands are fixed in position relative to each other so that the FaserhaSzeug also maintained by transport substantially a flat shape with the desired fiber strand orientation.
    In particular, the fiber strands are pre-impregnated and are glued or sewn together between the lower tool and the upper tool. Alternatively, the fiber strands may also be pre-impregnated and are bonded together by thermal action in the area of the lower tool. Alternatively or additionally, it is possible for the fiber strands to be bonded together by applying an adhesive in the area of the lower tool. As a result, the semifinished fiber product experiences a relative position fixation of the fiber strands in relation to one another in its edge region, so that in the case of a further transport process the contour but also the planar fiber orientation is retained.
    In the context of the invention, it is also possible that the flat fiber strands in the inner region of the lower tool with a binding powder are also fixed to each other position. Especially with a complex fiber strand orientation and / or interweaving of the fiber strands to each other, this is required.
    Furthermore, it is possible according to the invention not only to provide a two-dimensionally formed semifinished fiber product, but also to produce a three-dimensionally preformed semifinished fiber product. For this purpose, the lower tool has not only a two-dimensional design, but a three-dimensional formation. First, however, the fiber strands are wound substantially two-dimensionally from one pin to the respective opposite pin. By subsequent pressing with the aid of the upper tool, the semifinished fiber product to be sheared then receives a three-dimensionally formed precontouring.
    Further features, characteristics and aspects of the present invention are the subject matter of the following description. Preferred embodiments are shown in the schematic figures. These are for ease of understanding of the invention. Show it:
    Figure 1 is a perspective view of an inventive
    Device with lower tool and upper tool,
    FIG. 2 shows a plan view of a lower tool according to the invention with fiber strand wound around the pins,
    3a and b a pen in each case in a side view,
    Figure 4 shows a spring according to the invention mounted in a pen
    Side View,
    5a, b and c show a device according to the invention in a side view in open and closed state in different embodiments,
    6a and b show a side view of a pin and a separating device in different embodiments,
    Figure 7a and b is a cross-sectional view through a pin according to the invention with cutting device and
    Figure 8a and b an alternative embodiment of the device with
    Upper tool and lower tool.
    In the figures, the same reference numerals are used for the same or similar components, even though a repeated description is omitted for the sake of simplicity.
    FIG. 1 shows a perspective view of a device 1 according to the invention. Here, a lower tool 2 shown below is shown, wherein pins 4 are arranged peripherally on the edge 3 of the lower tool 2. A fiber strand 5 is wound around the pins 4, so that an unspecified flat fiber tool is formed on an inner region 6 of the lower tool 2. The lower tool 2 itself is adapted with its outer contour to the contour of the component to be produced. Correspondingly associated with the lower tool 2 is an upper tool 7, with cutting devices 8 being arranged on the upper tool 7, here in the form of cutting blades indicated by way of example. The deposited on the lower tool 2 and wound around the pins 4 fiber strand 5 is thus by retracting the
    Cutting devices 8 in the pins 4 on each of an outer edge 9durchtrennt. The embodiment variant shown here between lower tool 2 and upper tool 7 always has only one separating function. However, the lower tool 2 and upper tool 7 can also press the wound fiber strand 5 accordingly in a gap.
    FIG. 2 shows a plan view of the device 1 according to the invention, it being apparent here that the lower tool 2 is designed to project beyond the outer contour of the component 10 to be produced on the edge. The pins 4 are then arranged on the lower tool 2, wherein the fiber strand 5 is wound around the pins 4 so that the flat semi-finished fiber 11 is formed in the inner region 6 of the lower tool 2. A two-dimensionally movable laying head 12 winds the fiber strand 5 around the pins 4.
    So that the fiber strand 5, the pins 4 is not übergleitetbzw to its free end 13 out. slips off this, the free end is thickened ausgediidet, for example by a ball head 14 shown in Figure 3a or in Figure 3b a shown cross-sectional enlargement at the free end thirteenth
    Furthermore, in order for the pin 4 to optimally tension the fiber strand 5 and to compensate for a trajectory error of the bending head 12, it is furthermore preferably resiliently mounted, which is illustrated in principle in FIG.
    Furthermore, it is then possible by pressing the upper tool 7 against the lower tool 2 to compress the wound around the pins 4 fiber strand 5 and simultaneously and / or slightly time-delayed cropping. This is illustrated in FIGS. 5a, b and c in various variants with respect to the image plane, respectively, in the open state at the top and in the closed state at the bottom. In FIG. 5a, the upper tool 7 has cavities 15, so that the pins 4 projecting beyond the lower tool 2 retract into the cavities 15 of the upper tool 7 during a lowering movement of the upper tool 7. Furthermore, the cutting devices 8 are arranged in the upper tool 7, so that on a lowering movement of the upper tool 7, the cutting devices 8 either drive past the pins 4 and / or at least partially retract into the pins 4 and thereby edge-grooved the fiber strand 5 compressed towards the lower tool 2.
    Alternatively, the fiber strand 5 is wound around the pins 4 in FIG. 5b and is merely cut by a lowering movement of the upper tool 7, but the fiber strand 5 is not pressed again between the upper tool 7 and lower tool 2.
    FIG. 5c shows a further alternative embodiment variant, wherein here the fiber strand 5 is wound on the pins 4 of the lower tool 2, and then pressed by a lowering movement of the upper tool 7 in the direction of the lower tool 2 of the fiber strand 5 between lower tool 2 and upper tool 7. Furthermore, cutting devices 17 are provided on the pins 4 of the lower tool 2, which is also shown in FIG. 6b, so that the fiber strand 5 is pressed downwards over the pins 4 towards the lower tool 2 and at the same time through the cutting device 8, which is also progressively formed towards the lower tool 2 be suitably additionally tensioned and separated at a cutting edge 16 of the cutting device 17.
    Further, in Figure 6a, the principle of Figure 5b is shown in a cross-sectional view, so that the upper tool 7 also has an extension to which the cutting device 8 is attached, which extension may also be formed as a pin 4. The cutter 17 then moves down the actual pin 4 of the lower tool 2 and comes with its cutting edge 16 between the wrapping of the fiber strand 5 on the pin 4, tensions the fiber strand 5 and ultimately separates it outwards.
    The operating principle is also shown once again in FIGS. 7a and 7b in a plan view. FIG. 7a shows a pin 4, which in the cross-sectional profile is semi-open, in particular C-shaped. Around the pin 4 around the fiber strand 5 is wound. In the opening 18 of the pin 4 then enters the cutting device 17 and severed on an outside the wound around the pin 4 fiber strand 5.This corresponds to an embodiment according to, for example, the figure 5a and b.Alternatively, it is possible, according to Figure 7b, that Pin 4 directly one
    Cutting device 17 has, as it is also shown in Figure 6b, so that the strand of fibers 5, according to Figure 7b, corresponding to Figure 5c, top view wound around the pin 4 and then pressed down to the image plane of Figure 7b down by lowering of the upper tool 7 is pressed and then on the cutting device 17 is argued and ultimately cut by this.
    FIG. 8a shows an alternative embodiment of the device 1 according to the invention, comprising an upper tool 7 and a lower tool 2, wherein pins 4 are again arranged on the lower tool 2 and the pins 4 each have a cutting device with cutting edge 16 as shown in FIG. Again, the fiber strand 5, here indicated, is wound around the pins 4 and then moved by a lowering operation of the upper tool 7, shown in Figure 8b, in the lowering direction A, so that the fiber strand 5 at the cutting edge 16 undergoes a cut 19. The upper tool 7 has openings 20, wherein the openings 20 each have a slot 22 towards the outer edge 21 of the upper tool 7, so that the cutting device is positively received with its cutting edge 16 on further lowering of the upper tool 7 into the slot 22 and thereby the cutting process is done.
    Signs: 1 - device 2 - lower tool 3 - edge 4 - pins 5 - fiber strand 6 - inner area 7 - upper tool 8 - cutting device 9 - outer edge 10 - component 11 - flat semifinished fiber 12 - laying head 13 - free end to 4 14 - ball head 15 - cavity 16 - cutting edge 17 - cutting device 18 - opening 19 - section 20 - openings 21 - edge 22 - slot A- section
    权利要求:
    Claims (12)
    [1]
    1. Apparatus for producing a semi-finished fiber product (11), wherein the device (1) has a lower tool (2) and on the lower tool (2) pins (4) for wrapping a fiber strand (5) to form a flat semi-finished fiber product (11) an inner region (6) of the lower tool (2) are arranged, characterized in that the lower tool (2) is adapted to the contour of the component to be manufactured and an upper tool (7) is provided and cutting devices (8, 17) on the lower tool (2 ) and / or the upper tool (7) are provided, which cut the fiber strands (5), wherein each pin (4) corresponding to a cutting device (8, 17) is assigned, so that when closing the lower tool (2) and upper tool (7) the respective fiber strands (5) wound around the pin (4) can be severed.
    [2]
    2. Device according to claim 1, characterized in that the pins (4) are formed as pins, in particular with a longitudinal section to the free end (13) decreasing geometry.
    [3]
    3. Device according to claim 1 or 2, characterized in that the pins (4) have at their free end (13) an abutment, in particular in the form of a cross-sectional enlargement.
    [4]
    4. Device according to one of the preceding claims, characterized in that the pins (4) are resiliently mounted.
    [5]
    5. Device according to one of the preceding claims, characterized in that the lower tool (2) relative to the outer contour of the component to be produced (10) by 1 to 50%, in particular 1 to 30% and particularly preferably 1 to 20%, most preferably by 1 to 10% survive.
    [6]
    8. Device according to one of the preceding claims, characterized in that the lower tool (2) and / or the upper tool (7) are heated.
    [7]
    7. Device according to one of the preceding claims, characterized in that the lower tool (2) with the upper tool (7) positively with the exercise of a Kiemmkraft on the intervening fiber support (5) are coupled together.
    [8]
    8. Device according to one of the preceding claims, characterized in that the cutting device (8, 17) is a cutting blade, wherein the cutting device (8,17) is designed in particular to its free end (13) decreasing towards.
    [9]
    9. Device according to one of the preceding claims, characterized in that the pins (4) have a semi-open configuration in cross-section, wherein the cutting device (8) during the closing operation in the opening (18) of the pin (4) is retractable, in particular the opening ( 18) with respect to the lower tool (2) directed towards the outside.
    [10]
    10. A method for producing a semifinished fiber product (11) by means of a device according to one of the claims 1 to 9, characterized by the following steps: - Stables a to the outer contour of the manufactured component (10) adapted lower tool (2), - wrapping the pins (4) of the lower tool (2) with a fiber strand (5), so that in the lower tool (2) a flat semi-finished fiber product (11) is formed - Koppein, in particular bonding, or sewing the fiber strands (5) with each other in the region of the lower tool (2) and trimming the fiber strands (5), - removing the semifinished fiber product (11).
    [11]
    11. The method according to claim 10, characterized in that the fiber strands (5) are pre-impregnated and are glued together by pressing between the lower tool (2) and upper tool (7) or that the pre-impregnated fiber strands (5) by thermal action in the region of the lower tool (2) or that the fiber strands (5) are glued together by applying an adhesive in the region of the lower tool (2).
    [12]
    A method according to claim 10 or 11, characterized in that the lower tool (2) has a three-dimensional configuration, wherein first the fiber strands (5) are wound around the pins (4) of the lower tool (2) and when the lower tool (2) is pressed with the Upper tool (7) formed in the lower tool (2) flat semi-finished fiber product (11) is three-dimensional preformed and in particular fixed with a binder.
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    同族专利:
    公开号 | 公开日
    AT514825B1|2016-10-15|
    DE102013110186A1|2015-03-19|
    DE102013110186B4|2016-11-03|
    AT514825A3|2016-08-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4715924A|1982-11-29|1987-12-29|E. I. Du Pont De Nemours And Company|Apparatus for forming a web|
    DE4234083A1|1992-10-09|1994-04-14|Olbo Textilwerke Gmbh|Method and device for laying threads|
    US5913994A|1996-08-30|1999-06-22|Norton Company|Method for fabricating abrasive discs|
    DE102010015199B9|2010-04-16|2013-08-01|Compositence Gmbh|Fiber guiding device and apparatus for constructing a three-dimensional preform|
    DE102012215688A1|2012-09-04|2014-03-06|Robert Bürkle GmbH|Method and device for placing rovings in a press|DE102016208232A1|2016-05-12|2017-11-16|Airbus Operations Gmbh|Method and device for producing a semifinished product|
    US10773469B2|2017-02-21|2020-09-15|Seriforge Inc.|Systems and methods of converting fiber into shaped fabric plies for composite preforms and products|
    DE102017113421A1|2017-06-19|2018-12-20|Thyssenkrupp Ag|Method for producing a fiber composite component|
    IT201900015180A1|2019-08-28|2021-02-28|Lorenzo Coppini|A method and a system for the creation of a non-woven fabric|
    法律状态:
    2018-04-15| PC| Change of the owner|Owner name: SGL CARBON SE, DE Effective date: 20180305 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013110186.0A|DE102013110186B4|2013-09-16|2013-09-16|Apparatus and method for producing a semi-finished fiber product|
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