CN105365225B - 制造型材件的方法和装置 - Google Patents
制造型材件的方法和装置 Download PDFInfo
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Abstract
为了制造型材件,尤其是梯形或Ω形型材件,使用多层预浸渍纤维叠加材料,由数组输送带以馈进速度朝着馈送方向移动叠加材料,所述输送带与叠加材料侧边缘部分的上下表面贴合,并且将所述边缘部分保持在起始平面。数组输送带设置成与相对的边缘部分贴合的输送带之间的距离朝着馈送方向减少。为了执行该成型步骤,在相对于起始平面朝着馈送方向向上倾斜的斜坡上移动所述叠加材料的中间部分。
Description
技术领域
本发明涉及由多层叠加的预浸渍纤维,即所谓的预浸料,制造型材件,尤其是梯形、Ω形、半圆形(高斯波形)或者帽形型材件的方法和装置。
背景技术
这种“预浸料”包括用热塑性树脂或者热固化性树脂浸渍的纤维,另外也包括多层所含纤维由碳、玻璃、芳纶或者类似材料组成的树脂。
型材件,尤其是用碳纤维增强材料制成的型材件,在飞机产品中被使用。为了制造这种型材件,已知的方法是将从多层叠加的预浸渍纤维预切割出的元件,通常在经过预加热后,放入到模具中,并且将该元件压入到模具型腔以形成具有所需横截面的成型元件。等用来浸渍纤维的热固化性树脂或者热塑性树脂固化,将元件与模具脱离以后,成型元件就可以使用了。然而这种不连续的制造过程耗费时间,另外,所生产的型材件可能有点缺陷。原因是叠加的各层,其垂直于叠加材料纵向方向的长度完全相同,并且当材料变形的时候,它们需要相对彼此滑动。然而,在许多情形中却是模具的边缘以及模具件在这些边缘区域与叠加材料的接合阻止了这种滑动,这样就在所述材料中产生折皱,使材料质量下降。
在2013年5月21日提出的申请号为13168504.2的现有欧洲专利申请(专利权人:Airbus Operations Gmbh)中,描述了用多层叠加的预浸渍纤维连续生产基本上Ω形的型材件的方法,其中在该生产过程的开始阶段,先生产叠加材料,然后送这些连续的叠加材料经过多个加工位,比如加热工位、预成型工位、再加热工位,接着经过成型站。该成型站包括轮子,在该轮子的外圆周具有模具槽,该成型站还进一步包括多个紧邻轮子布置的成型件,目的是将预成型的叠加材料部件一个接一个地压入到模具槽。在成型过程的最后,按照设定的长度切割成型材料。
发明内容
本发明的目的是提供一种连续制造所需类型型材件的方法。
根据本发明,通过由数组输送带以馈送速度朝着馈送方向移动多层预浸渍纤维叠加材料,优选碳纤维,所述输送带与叠加材料侧边缘部分的上下表面贴合,并且将所述边缘部分保持在起始平面,同时所述数组输送带设置成与相对的边缘部分贴合的输送带之间的距离朝着馈送方向减少,以及通过在相对于起始平面朝着馈送方向向上倾斜的斜坡上移动所述叠加材料的中间部分,可以实现该目的。
在该方法中,连续叠加材料或者是从供应轮上直接扯下来的成品,或者是在生产过程的开始阶段先由单独的一层层材料生产而成,该叠加材料在成型步骤开始之前可以进行预加热,通过在向上倾斜的斜坡上移动叠加材料的中间部分,该叠加材料逐渐变形,同时该叠加材料的边缘部分保持在起始平面并且通过数组输送带朝着馈送方向移动。优选地,斜坡倾斜的平均角度达到大约10°。因此叠加材料可以逐渐变形,并且数组输送带之间的夹紧力的大小足够满足叠加材料朝着馈送方向移动经过斜坡,但不会阻止叠加材料变形过程中各层相对于彼此的滑动,从而避免了上文所提到的折皱。
优选地,斜坡由中央输送带形成,所述中央输送带的带子以馈送速度移动,这样该输送带协助叠加材料的馈送。
为了确保叠加材料的中间部分能够形成为平壁部分,可以通过布置与中间部分上表面贴合的空转辊或者输送带来保持中间部分与斜坡的贴合。另外,真空可以施加到所述中间部分的下侧以协助保持叠加材料与斜坡之间所述的贴合。
在离开所述斜坡后,将包括了成型侧壁的所述中间部分放置在支撑部件上,也可以就直接将其切割成一定的长度。
一种实施本发明方法的装置,包括两组输送带,每组输送带包括两条协作输送带,每条协作输送带具有平行于起始平面的带协作部分,其中所述两组输送带彼此分开,通过与叠加材料的侧边缘部分的贴合,共同使叠加材料朝着馈送方向向前移动,同时所述两组输送带之间的距离朝着馈送方向减少,所述装置还包括位于所述两组传输带之间且朝着馈送方向向上倾斜的斜坡。优选地,所述斜坡由输送带形成,所述输送带具有朝着馈送方向移动的上带部分。
在成型过程中,为了支撑和引导所生成的材料倾斜壁,倾斜的侧引导表面从所述斜坡的侧端在向着两组输送带的带协作部分内缘方向延伸。
为了保持叠加材料的中间部分与斜坡贴合,在该斜坡上可以设置空转滚轮或者输送带与叠加材料中间部分的上表面贴合。
通过在斜坡区域内将真空施加到所述材料的中间部分,可以进一步协助中间部分与斜坡保持贴合。
在斜坡后面可以设置支撑所形成的型材的支撑芯棒。进一步地,横切成型材料的切割装置可以位于斜坡上端的后面。
接下来,结合附图对本发明进行更加详细地解释,这些附图对于装置的工作部件进行了概括性地显示,其中不同的附图之间未必是按照比例进行显示的,而且为了帮助对本发明的理解,不同的附图仅显示了不同部分的部件而没有公开整个机器所有这些部件的装配情况。
附图说明
图1为根据本发明所生产的型材件横截面视图的形状。
图2为将要进行变形的叠加材料送进本发明装置的两侧的输送带组和中央输送带时的示意图。
图3为本发明装置的输送带与其它部件一起的示意侧视图
图4a为保持在侧置成套输送带之间要进行变形的叠加材料仍然是平面时的示意图
图4b为图4a的叠加材料由两侧输送带组进行输送并且通过向上倾斜的斜坡产生部分变形时的示意图
图4c为图4b的叠加材料在斜坡更上面位置时的视图
图5为由输送带形成的向上倾斜的斜坡横截面示意图
图6为图5构造的横截面视图
具体实施方式
图1示出的是,根据本发明制造的型材件1的横截面。如图所示,型材件包括平坦底部2和侧壁3、4,凸缘5、6从所述侧壁向外延伸并且位于同一个平面。在横截面中,型材略微不对称,因为侧壁3比侧壁4相对于凸缘5、6更加倾斜,例如侧壁3可以相对于凸缘5倾斜95°到110°。底部2与侧壁3以及侧壁4所形成的边缘都可以具有3mm到7mm的微小曲率半径。
应该注意到,根据本发明,能够成型不同形状的型材,例如如图1中所示的横截面相似但对称的型材。在这两种情形中,通过切割凸缘5、6,基本上Ω形的型材件可以转换成梯形的型材件。进一步地,也可以成型帽形的型材件,而且通过纵向切割Ω形或者帽形的型材件,能够获得Z形的型材件。
如图2和图3所示,根据本发明的装置包括两组输送带10、11,每组输送带包括上输送带10a、11a和下输送带10b、11b。将带子的协作部分(图3中的11c、11d)与多层预浸渍纤维的叠加材料S的侧边缘部分贴合布置,该叠加材料,正如上文所提到的,可以为了执行成型步骤而进行预加热。如图2所示,两组输送带10、11之间的距离沿叠加材料S的送进方向(箭头所示)减少,这样在成型步骤的整个过程中,两组输送带10、11的协作部分11c、11d(图3)自始至终与所述叠加材料的侧弯曲边缘贴合,以最终形成宽度可为2cm到3cm的凸缘。在成型步骤的整个过程中,边缘部分保持在由带子的协作部分11c、11d(图3)所界定的起始平面中,该起始平面也可以由图4a中的叠加材料S的位置来表示。
在两套输送带10、11之间设置了中央输送带20,该中央输送带20形成有沿送进方向向上倾斜的斜坡。输送带20支撑在斜坡体16上,而斜坡体16固定在示意性示出的机架15中(图3)。斜坡倾斜的平均角度达到大约10°。
如图4b和4c所示,在叠加材料S被两组输送带10、11的输送部分10a、10b和11a、11b贴合,且接着朝着馈送方向移动的时候,叠加材料与中央输送带20贴合,该中央输送带20也朝着馈送方向移动并且协助叠加材料S产生对应的位移。在该位移的过程中,起初为平面的叠加材料S,逐渐形成为如图1所示的型材,其中侧壁3、4的倾斜是通过斜坡体16所对应的倾斜侧引导表面3a、4a(图6和图4c)来界定的。这些引导表面,如图6所示,从形成容纳输送带20的凹部的壁部分的上端向下延伸,并形成为向上倾斜的斜坡的侧部。壁部分的上端和侧引导表面3a、4a之间的过渡区域略有弧度,以形成型材件中所对应的弧形边缘。
图3和图4b、4c示出了多个空转辊30,这些空转辊30的位置略高于由中央输送带20形成的斜坡,这样在运转过程中,这些空转辊与以后会成型为型材件底部2(图1)的叠加材料S的中央部分贴合。因此,能够确保叠加部分与倾斜斜坡保持贴合。
在图5和图6所示的布置中,输送带31位于中央输送带20的上方,并且在运转过程中以和输送带20相同的速度对其驱动。输送带31和输送带20配合来维持叠加材料S的中央部分与输送带20贴合。
进一步地,斜坡体16可以包括连接真空源的喷嘴之类的部件,这样可以施加真空到叠加材料S中间部分的下面,以保持其与输送带20的贴合。
一旦成型步骤完成,成型的叠加材料离开中央输送带20并由进一步成型部件接收,进一步成型部件包括如图3中示意性示出的支撑芯棒40。该支撑芯棒40支撑所生成的变形叠加材料的底部、侧壁和凸缘。可以想象得出,通过切割装置可以将变形的叠加材料切割成一定的长度。
在用来浸渍叠加材料纤维的热塑性树脂或者热固化性树脂固化以后,型材件就可以使用了。
Claims (13)
1.一种由多层预浸渍纤维叠加材料制造型材件的方法,该型材件是梯形、Ω形、半圆形或者帽形型材件,包括,由数组输送带以馈送速度朝着馈送方向移动所述叠加材料,所述输送带与所述叠加材料的侧边缘部分的上下表面贴合,并且将所述边缘部分保持在起始平面,同时所述数组输送带设置成与相对的边缘部分贴合的这些输送带之间的距离朝着馈送方向减少,以及在相对于起始平面朝着馈送方向向上倾斜的斜坡上移动所述叠加材料的中间部分。
2.如权利要求1所述的方法,其特征在于,所述斜坡由中央输送带形成,所述中央输送带的带子以馈送速度移动。
3.如权利要求1或2所述的方法,其特征在于,通过布置与所述中间部分的上表面贴合的空转辊,保持所述中间部分与所述斜坡的贴合。
4.如权利要求1或2所述的方法,其特征在于,通过与所述中间部分的上表面贴合的输送带(31),保持所述中间部分与所述斜坡(20)的贴合。
5.如权利要求1所述的方法,其特征在于,真空施加到所述中间部分的下侧。
6.如权利要求1所述的方法,其特征在于,在离开所述斜坡后,将包含所形成的侧壁的所述中间部分放置在支撑部件上。
7.一种实施根据权利要求1所述方法的装置,其特征在于,包括两组输送带,每组输送带包括两条协作的输送带,每条协作输送带具有平行于起始平面的带协作部分,其中所述两组输送带彼此分开,通过与叠加材料的侧边缘部分的贴合,共同使叠加材料朝着馈送方向向前移动,同时所述两组输送带之间的距离朝着馈送方向减少,所述装置还包括位于所述两组传输带之间且朝着馈送方向向上倾斜的斜坡。
8.如权利要求7所述的装置,其特征在于,倾斜的侧引导表面从所述斜坡的侧端在向着所述两组输送带的带协作部分的内缘方向延伸。
9.如权利要求7或8所述的装置,其特征在于,所述斜坡由输送带形成,所述输送带具有朝着馈送方向移动的上带部分。
10.如权利要求7所述的装置,其特征在于,在所述斜坡上设置了用来与所述材料中间部分上表面贴合的空转辊。
11.如权利要求7所述的装置,其特征在于,在所述斜坡(20)上设置用来与所述叠加材料中间部分的上表面贴合的输送带(31)。
12.如权利要求7所述的装置,其特征在于,包括在所述斜坡的区域内将真空施加到所述叠加材料的中间部分的装置。
13.如权利要求7所述的装置,其特征在于,在所述斜坡的后面设置支撑所形成的型材的支撑部件。
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JPS5615311A (en) * | 1979-07-17 | 1981-02-14 | Hitachi Zosen Corp | Manufacturing apparatus for resin molded material |
US7249943B2 (en) * | 2003-08-01 | 2007-07-31 | Alliant Techsystems Inc. | Apparatus for forming composite stiffeners and reinforcing structures |
US8568551B2 (en) * | 2007-05-22 | 2013-10-29 | The Boeing Company | Pre-patterned layup kit and method of manufacture |
WO2009097514A1 (en) * | 2008-01-31 | 2009-08-06 | Alliant Techsystems Inc. | A stiffener tool positioning apparatus |
EP2805802B1 (en) | 2013-05-21 | 2017-02-01 | Airbus Operations GmbH | System and method for producing preforms |
EP2985137B1 (en) | 2014-08-14 | 2017-10-11 | Airbus Operations GmbH | A method and an apparatus for forming profile elements |
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BE664896A (zh) * | 1964-06-08 | 1965-10-01 | ||
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CN102006986A (zh) * | 2008-03-07 | 2011-04-06 | 空中客车公司 | 用于制造由复合材料制成的弯曲型件的方法和设备及制成的型件 |
CN102574334A (zh) * | 2009-10-16 | 2012-07-11 | 东丽株式会社 | 梁材的制造方法和制造装置 |
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CA2900003A1 (en) | 2016-02-14 |
US10245793B2 (en) | 2019-04-02 |
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