CN111421757A - 车窗玻璃组件及其制造方法 - Google Patents
车窗玻璃组件及其制造方法 Download PDFInfo
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- 238000001746 injection moulding Methods 0.000 claims abstract description 54
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- 238000002347 injection Methods 0.000 claims description 68
- 239000007924 injection Substances 0.000 claims description 68
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- 229920001971 elastomer Polymers 0.000 claims description 3
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 12
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- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 6
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- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
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Abstract
本发明涉及一种车窗玻璃组件及其制造方法。所述车窗玻璃组件包括:车窗玻璃及其注塑包边;以及包胶螺钉,所述包胶螺钉包括基座、螺纹杆和注塑件,所述螺纹杆的一端固定连接于所述基座,并且所述注塑件至少部分包覆所述基座,其中所述注塑包边至少部分包覆所述注塑件以使所述包胶螺钉与所述车窗玻璃彼此固定,并且所述注塑件的材料的拉伸强度大于所述注塑包边的材料的拉伸强度。这种车窗玻璃组件能够适配于车窗玻璃表面与需要安装该车窗玻璃的车门钣金之间存在较大间隙的各种车型,并且能够在车辆制造商要求使用拉伸强度较小的特定材料来形成该车窗玻璃的注塑包边时确保螺钉的定位精确度。
Description
技术领域
本发明涉及车窗玻璃制造技术领域。更具体地,本发明涉及一种车窗玻璃组件,以及涉及这种车窗玻璃组件的制造方法。
背景技术
当前,不少车辆上都安装有三角窗。某些车辆的三角窗安装在车辆前部,以拓宽驾驶员的视野,避免两侧有超车的时候看不清楚。某些车辆的三角窗安装在车辆后部,以增加车辆中的采光。这些三角窗通常通过螺钉固定在车门钣金上。
车辆制造商一般选择在车辆组装线的最后阶段通过在螺钉上拧紧螺母来安装这些三角窗,因此玻璃制造商会被要求在三角窗玻璃的注塑包边中包覆一个或多个螺钉,并且该注塑包边需要满足拧紧螺母时的最小扭矩要求(例如为5-6Nm),以避免在拧紧螺母时发生损坏。
然而,对于某些车型,三角窗玻璃表面与需要安装该三角窗玻璃的车门钣金之间存在较大间隙(例如大于10mm),常用的标准螺钉无法满足需求,且玻璃表面由于特定的设计样式而无法改变,车门钣金考虑到冲压可行性也无法改变。此外,虽然注塑包边通常选择由PVC(聚氯乙烯)注塑成型,但出于外观或功能的需求,有些车辆制造商要求使用其它特定的材料来形成该注塑包边,例如使用拉伸强度较小的材料(如TPE(热塑性弹性体),TPE的断裂伸长率约为PVC的两倍,但拉伸强度不足PVC的一半,使得其难以满足拧紧螺母时的扭矩要求)。
为了解决上述问题,现有技术中提出了几种方案。例如,提出可增大螺钉的长度来克服上述较大间隙,然而由于组装空间的限制,在一些车型上无法使用长度较大的螺钉。
还提出可增大用于包覆螺钉基座的注塑材料的厚度以相对于玻璃表面“抬高”螺钉,从而减小螺钉基座与车门钣金之间的距离,然而注塑材料(例如TPE)厚度的增大会导致注塑包边在注塑后产生收缩现象,这会影响螺钉的定位精确度。
发明内容
为了克服上述现有技术中存在的缺陷,本发明的第一方面提供了一种车窗玻璃组件,所述车窗玻璃组件包括:车窗玻璃及其注塑包边;以及包胶螺钉,所述包胶螺钉包括基座、螺纹杆和注塑件,所述螺纹杆的一端固定连接于所述基座,并且所述注塑件至少部分包覆所述基座,其中,所述注塑包边至少部分包覆所述注塑件以使所述包胶螺钉与所述车窗玻璃彼此固定,并且所述注塑件的材料的拉伸强度大于所述注塑包边的材料的拉伸强度。
根据本发明的优选实施方式,所述注塑件包括用于使所述包胶螺钉定位在所述车窗玻璃的表面上的定位部,所述定位部相对于基座反向于螺纹杆延伸出并突出于注塑件底部表面。
根据本发明的优选实施方式,所述包胶螺钉还包括贴靠所述基座套设于所述螺纹杆上的垫圈。
根据本发明的优选实施方式,所述垫圈的材料为橡胶或塑料。
根据本发明的优选实施方式,所述注塑件的材料为PP(聚丙烯)、PA(尼龙)、ABS(丙烯腈-丁二烯-苯乙烯)或PC/ABS(聚碳酸酯和丙烯腈-丁二烯-苯乙烯共聚物和混合物)。
根据本发明的优选实施方式,所述注塑件的材料中添加有玻璃纤维。
根据本发明的优选实施方式,所述注塑件中形成有用于填充所述注塑包边的材料的至少一个通孔。
根据本发明的优选实施方式,所述注塑包边的材料为TPE。
本发明的第二方面提供了一种制造根据本发明的第一方面的车窗玻璃组件的制造方法,所述制造方法包括以下步骤:A)将所述基座和所述螺纹杆彼此固定连接并且放置入第一注塑模具中;B)在所述第一注塑模具中注入第一注塑材料形成至少部分包覆所述基座的所述注塑件,以获得所述包胶螺钉,并且将所获得的所述包胶螺钉从所述第一注塑模具脱模;C)将所获得的所述包胶螺钉和所述车窗玻璃通过点接触彼此定位并且放置入第二注塑模具中;D)在所述第二注塑模具中注入第二注塑材料形成至少部分包覆所述注塑件的所述注塑包边,以获得所述车窗玻璃组件。
根据本发明的优选实施方式,所述制造方法还包括在步骤C)之前在所获得的所述包胶螺钉的注塑件的表面涂底涂的步骤。
与现有技术相比,根据本发明车窗玻璃组件具有多个优点,尤其是:
1)通过对基础螺钉结构实施第一次注塑以获得包胶螺钉,然后对所获得的包胶螺钉与车窗玻璃实施第二次注塑以形成该车窗玻璃的注塑包边,本发明的车窗玻璃组件相对于玻璃表面“抬高”了螺钉,因此能够适配于车窗玻璃表面与需要安装该车窗玻璃的车门钣金之间存在较大间隙的各种车型;
2)由于第一次注塑的注塑材料的拉伸强度大于第二次注塑的注塑材料的拉伸强度,本发明的车窗玻璃组件通过这两种注塑材料的结合提升了整体机械强度,因此能够在车辆制造商要求使用拉伸强度较小的材料来形成车窗玻璃的注塑包边时满足拧紧螺母时的最小扭矩要求;
3)虽然本发明的车窗玻璃组件的注塑包边具有较大的厚度,但由于该注塑包边包覆了包胶螺钉的具有较大拉伸强度的注塑件,因此该注塑包边在注塑后几乎不会产生收缩现象,确保了包胶螺钉在车窗玻璃上的定位精确度;
4)此外,这种车窗玻璃组件的制造方法并不复杂,一些特定的注塑材料(例如PP与TPE)之间无需涂底涂亦能够很好地实现自粘,因此这种车窗玻璃组件的经济成本和工时成本较低,能够广泛应用于各种车型。
附图说明
本发明的其它特征以及优点将通过以下结合附图详细描述的优选实施方式被更好地理解,在附图中,相同的附图标记表示相同或相似的部件。
图1是用于本发明的车窗玻璃组件的一种基础螺钉结构的立体示意图;
图2是图1中的基础螺钉结构的剖视示意图;
图3是图1中的基础螺钉结构放置在第一注塑模具中的剖视示意图;
图4是包括图1中的基础螺钉结构的一种包胶螺钉的立体示意图;
图5是图4中的包胶螺钉的剖视示意图;以及
图6是本发明的车窗玻璃组件的一种实施方式的局部剖视示意图,该车窗玻璃组件包括图4中的包胶螺钉。
具体实施方式
下面详细讨论实施例的实施和使用。然而,应当理解,所讨论的具体实施例仅示范性地说明实施和使用本发明的特定方式,而非限制本发明的保护范围。
注意到,附图不仅用于本发明的解释和说明,必要时还有助于本发明的限定。
图1是用于本发明的车窗玻璃组件的一种基础螺钉结构的立体示意图,
图2是图1中的基础螺钉结构的剖视示意图。如图所示,所述基础螺钉结构包括基座1和螺纹杆2,螺纹杆2的一端固定连接于所述基座1。基座1和螺纹杆2均可由钢材料制成并且例如通过铆接等方式彼此固定。当然,基座1和螺纹杆2也可设计为一体成型,以便于制造。
在所示的实施例中,基座1是厚度大约在1.5mm与2.5mm之间的钢板,所述钢板上开设有定位孔11(图中示例性示出了相对于所述钢板的中心对称的两个定位孔11),以使设置于注塑模具中的定位件穿过定位孔11而使基座1精确地定位在注塑模具中并且相对于该注塑模具不可旋转。
螺纹杆2与所述钢板基本垂直,并且螺纹杆2的一端固定连接于所述钢板的大致中心位置处,另一端用于穿过开设于车门钣金上的固定孔并且能够通过拧紧螺母与车门钣金彼此固定。螺纹杆2的型号可根据实际需求来选择,例如可选择M5、M6等型号。
此外,为了防止腐蚀,可对基座1和螺纹杆2的表面进行电镀,电镀层的材料通常为PF Zn(电镀锌)或PF Zn Ni(电镀锌镍)。
优选地,所述基础螺钉结构还可包括贴靠基座1套设于螺纹杆2上的垫圈3,垫圈3的材料为橡胶、软塑料或硬塑料,以在注塑时增加密封性,防止注塑材料经由螺纹渗漏。
图3是图1中的基础螺钉结构放置在第一注塑模具中的示意图。如图所示,第一注塑模具的注塑区域9由型腔模7和芯模8限定。所述基础螺钉结构的基座1和垫圈3被整体放置入注塑区域9中,以通过实施第一次注塑而形成至少部分包覆基座1的注塑件4(见图5和图6),从而获得整个包胶螺钉。
注塑件4的材料通常是硬塑料,例如PP、PA、ABS或PC/ABS等等,当车辆制造商要求使用软塑料来形成车窗玻璃的注塑包边时,硬塑料和软塑料的结合能够增大车窗玻璃组件的机械强度,满足拧紧螺母时的最小扭矩要求。事实上,注塑件4的材料可选择为拉伸强度大于注塑包边的材料的拉伸强度并且适用于制造包塑螺钉的任何注塑材料。优选地,注塑件4的材料(例如PP、PA)中可添加玻璃纤维以进一步增大机械强度。
图4是包括图1中的基础螺钉结构的一种包胶螺钉的立体示意图,图5是图4中的包胶螺钉的剖视示意图。如图所示,所述包胶螺钉的注塑件4至少部分包覆基座1。优选地,除了留出定位孔11的位置,注塑件4基本完全包覆基座1。此外,注塑件4包括用于使所述包胶螺钉在第二次注塑时定位在车窗玻璃的表面上的定位部42,该定位部42相对于基座1反向于螺纹杆2延伸出并突出于注塑件底部表面43,以适于与车窗玻璃的表面形成点接触。如图5所示,所述底部表面43是指与玻璃接触的注塑件表面。
更具体地,在所示的实施例中,定位部42与螺纹杆2分别位于板状基座1的两侧,定位部42从邻近于基座1中心的位置垂直于基座1向外延伸,并且包括适于与车窗玻璃的表面形成点接触的尖端。
图6是本发明的车窗玻璃组件(通常是三角窗玻璃组件)的一种实施方式的局部剖视示意图。如图所示,由于车窗玻璃6的表面通常具有不规则的弧面形状,注塑件4与车窗玻璃6之间的距离并非处处相等。因此,在实施第二次注塑以形成车窗玻璃6的注塑包边5时,可有利地借助于定位部42与车窗玻璃6之间的点接触来使所述包胶螺钉与车窗玻璃6彼此定位。对于三角窗玻璃组件,包胶螺钉通常定位在三角窗玻璃的角落位置处。注塑包边5至少部分包覆所述包胶螺钉的注塑件4。优选地,除了留出定位孔11的位置,注塑包边5基本完全包覆注塑件4。
注塑包边5的材料可根据车辆制造商的要求而选择软塑料,例如TPE。当注塑件4的材料为PP并且注塑包边5的材料为TPE的情况下,由于PP与TPE之间能够实现自粘,在第二次注塑前无需在注塑件4上涂底涂,因此节省了经济成本和工时成本。在选择其它材料的情况下,可根据实际选择的材料的自粘性能来确定是否需要在第二次注塑前在注塑件4上涂底涂。当然,注塑件4和注塑包边5的材料不限于上述示例,在注塑件4的材料的拉伸强度大于注塑包边5的材料的拉伸强度的基础上,可根据外观和功能来选择适用于制造车窗玻璃组件的任何硬塑料和软塑料。注塑件4的材料的拉伸强度优选地在注塑包边5的材料的拉伸强度的两倍以上,更优选地在注塑包边5的材料的拉伸强度的三倍以上。例如,对于注塑包边5的材料,TPE的拉伸强度大致在0.1Mpa与15Mpa之间,如约等于5Mpa;而对于注塑件4的材料,PP的拉伸强度大致在20Mpa与30Mpa之间,ABS的拉伸强度大致在35-50Mpa之间,PA的拉伸强度大致在60-80Mpa之间。
优选地,注塑件4中可形成有用于填充注塑包边5的材料的至少一个通孔41。在所示的实施例中,注塑件4中形成有分别位于定位部42两侧的两个通孔41,这两个通孔41在与板状基座1平行的方向上贯通并且具有一定厚度,以能够在第二次注塑时填充注塑包边5的材料,这进一步改善了注塑件4与注塑包边5之间的接触,并且能够在注塑包边5的厚度较大的情况下避免在注塑后产生收缩现象,因此提升了所述包胶螺钉的定位精确度。
下面描述制造本发明的车窗玻璃组件的制造方法。
首先,将基座1和螺纹杆2彼此固定连接并且可选地在螺纹杆2套设垫圈3以组装形成基础螺钉结构,并且将组装完成的基础螺钉结构放置入第一注塑模具中,以使基座1和垫圈3整体容置于第一注塑模具的注塑区域9中,并且通过使设置于第一注塑模具中的定位件穿过基座1的定位孔11而使基座1精确地定位在第一注塑模具中并且相对于第一注塑模具不可旋转。
然后,在第一注塑模具中注入第一注塑材料(例如PP、PA、ABS、PC/ABS等硬塑料,可选地添加有玻璃纤维)形成至少部分包覆(优选地,基本完全包覆)基座的注塑件4,以获得包胶螺钉,并且将所获得的包胶螺钉在冷却后从第一注塑模具脱模,之后可根据实际选择的材料的自粘性能来确定是否需要在注塑件4上涂底涂,并且可根据实际需要重复上述步骤以获得多个包胶螺钉。
然后,借助于注塑件4的定位部42使所获得的包胶螺钉和车窗玻璃6通过点接触彼此定位并且放置入第二注塑模具中,通过使设置于第二注塑模具中的定位件穿过基座1的定位孔11而使基座1精确地定位在第二注塑模具中并且相对于第二注塑模具不可旋转。
最后,在第二注塑模具中注入第二注塑材料(例如TPE等软塑料)形成注塑包边5,注塑包边5至少部分包覆(优选地,基本完全包覆)注塑件4并且可选地填充形成于注塑件4中的通孔41,以使所述包胶螺钉牢固地固定在所述车窗玻璃上,并且在冷却及脱模之后获得所需的车窗玻璃组件。
以上已揭示本发明的技术内容及技术特点,然而可以理解,在本发明的创作思想下,本领域的技术人员可以对上述公开的构思作各种变化和改进,但都属于本发明的保护范围。上述实施方式的描述是示例性的而不是限制性的,本发明的保护范围由权利要求所确定。
Claims (10)
1.一种车窗玻璃组件,所述车窗玻璃组件包括:
车窗玻璃及其注塑包边;以及
包胶螺钉,所述包胶螺钉包括基座、螺纹杆和注塑件,所述螺纹杆的一端固定连接于所述基座,并且所述注塑件至少部分包覆所述基座,
其特征在于,所述注塑包边至少部分包覆所述注塑件以使所述包胶螺钉与所述车窗玻璃彼此固定,并且所述注塑件的材料的拉伸强度大于所述注塑包边的材料的拉伸强度。
2.根据权利要求1所述的车窗玻璃组件,其特征在于,所述注塑件包括用于使所述包胶螺钉定位在所述车窗玻璃的表面上的定位部,所述定位部相对于基座反向于螺纹杆延伸出并突出于注塑件底部表面。
3.根据权利要求1所述的车窗玻璃组件,其特征在于,所述包胶螺钉还包括贴靠所述基座套设于所述螺纹杆上的垫圈。
4.根据权利要求3所述的车窗玻璃组件,其特征在于,所述垫圈的材料为橡胶或塑料。
5.根据权利要求1所述的车窗玻璃组件,其特征在于,所述注塑件的材料为PP、PA、ABS或PC/ABS。
6.根据权利要求5所述的车窗玻璃组件,其特征在于,所述注塑件的材料中添加有玻璃纤维。
7.根据权利要求1所述的车窗玻璃组件,其特征在于,所述注塑件中形成有用于填充所述注塑包边的材料的至少一个通孔。
8.根据权利要求1所述的车窗玻璃组件,其特征在于,所述注塑包边的材料为TPE。
9.一种制造根据权利要求1至8中任一项所述的车窗玻璃组件的制造方法,其特征在于,所述制造方法包括以下步骤:
A)将所述基座和所述螺纹杆彼此固定连接并且放置入第一注塑模具中;
B)在所述第一注塑模具中注入第一注塑材料形成至少部分包覆所述基座的所述注塑件,以获得所述包胶螺钉,并且将所获得的所述包胶螺钉从所述第一注塑模具脱模;
C)将所获得的所述包胶螺钉和所述车窗玻璃通过点接触彼此定位并且放置入第二注塑模具中;
D)在所述第二注塑模具中注入第二注塑材料形成至少部分包覆所述注塑件的所述注塑包边,以获得所述车窗玻璃组件。
10.根据权利要求9所述的车窗玻璃组件,其特征在于,所述制造方法还包括在步骤C)之前在所获得的所述包胶螺钉的注塑件的表面涂底涂的步骤。
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JP7483738B2 (ja) | 2024-05-15 |
EP3956121A4 (en) | 2022-12-28 |
KR20210151097A (ko) | 2021-12-13 |
WO2020211715A1 (en) | 2020-10-22 |
PE20212282A1 (es) | 2021-11-30 |
JP2022528824A (ja) | 2022-06-16 |
EP3956121A1 (en) | 2022-02-23 |
BR112021013879A2 (pt) | 2021-10-26 |
US20220176785A1 (en) | 2022-06-09 |
MA55730A (fr) | 2022-02-23 |
MX2021012628A (es) | 2021-11-12 |
EP3956121B1 (en) | 2023-12-13 |
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