CN103895346B - 一种喷墨涂布装置及喷涂方法 - Google Patents
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Abstract
本发明提供了一种喷墨涂布装置,用于在设有涂布间隔带的玻璃基板上喷涂油墨,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,所述喷嘴包括油墨入射口和油墨喷射口,所述油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,在涂布间隔带中形成不同颜色的油墨喷涂层,所述油墨喷射口的内径大于油墨入射口的内径。采用了喇叭状的喷嘴,相邻喷嘴之间无间隙,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,避免了残余喷墨聚集黏结于喷嘴的外表面上,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。
Description
技术领域
本发明涉及一种玻璃基板生产装置及生产方法,尤其是指一种喷墨涂布装置及喷涂方法。
背景技术
参照图1所示,传统的喷墨涂布装置中,喷嘴200呈直筒型,与玻璃基板上的涂布间隔带300相互对应配置,喷嘴分别向相对应的涂布间隔带喷涂油墨,由于喷嘴之间设有一定的间隙,致使在油墨喷涂过程中,油墨容易残留在间隙台面上,长期使用,油墨黏结于喷嘴附近,容易导致喷嘴堵塞,使其喷涂不畅等现象,需要间断性地对喷嘴进行清洗。同时,喷涂的油墨滴落于涂布间隔带后,油墨在相邻的间隔带中扩散,容易发生扩散不均,厚度不一的现象,油墨涂布层的厚度难于控制。
发明内容
为了解决上述的技术问题,本发明提供了一种可均匀喷涂油墨,喷嘴免清洗的喷墨涂布装置及其喷涂方法,以获得厚度均一的涂布层。
本发明提供了一种喷墨涂布装置,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,其中,所述喷嘴包括油墨入射口和油墨喷射口,所述油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,所述油墨喷射口的内径大于油墨入射口的内径。
在本发明的优选实施例中,所述相邻喷嘴之间无间隙,这样,避免喷嘴所喷出的油墨粘接在喷嘴台面上,造成喷嘴堵塞,影响油墨的持续喷涂。同时,所述喷嘴呈喇叭状,所述喷嘴的油墨喷射口比油墨入射口的内径大5-200微米,所述油墨喷射口的外张角度为20-89度,使得由油墨喷射口喷出的油墨滴的形状为椭圆状,扩大了油墨在水平方向上的表面积,使其可均匀地注入各个涂布间隔带上。所述油墨喷射口呈内凹形,可有效防止油墨残留于其上。
在本发明的优选实施例中,所述喷墨涂布装置进一步包括压电传感器,其设于喷嘴的上方,通过改变电压而产生不同大小的拉力作用于喷嘴上,以改变喷嘴的口径大小,以调整油墨的喷射量。所述压电传感器与喷嘴一一对应,其为压电陶瓷传感器。
其中,所述玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,喷嘴向玻璃基板喷涂油墨,在涂布间隔带中形成不同颜色的油墨喷涂层。
本发明还提供了一种喷墨涂布方法,其包括以下步骤:
步骤1)将玻璃基板放置于基台上,将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
在步骤2)中,从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨。
与现有技术相比,本发明一种喷墨涂布装置采用了喇叭状的喷嘴,相互紧密依靠,相邻喷嘴之间无间隙,既提高了油墨的喷涂量,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,同时,由于喷嘴之间无间隙,避免了残余喷墨聚集黏结于喷嘴的外表面上,造成喷嘴的堵塞,减少了喷嘴清洗的工序,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。并且,通过改变施加于压电传感器上的电压大小,随之改变喷嘴的口径,从而调整油墨的喷射量,因此,可微量调整油墨喷射量,使得喷涂工艺更为精确化。
附图说明
图1为现有一种喷墨涂布装置的结构示意图;
图2为本发明一种喷墨涂布装置的结构示意图。
具体实施方式
为了使得从喷嘴里喷出的油墨,能够更为均匀地喷涂于玻璃基板的涂布间隔带上,油墨扩散均匀,涂布厚度均一,本发明提供了一种喷墨涂布装置1,用于在设有涂布间隔带的玻璃基板2上喷涂油墨,其包括基台10和喷头12,所述基台10用于放置玻璃基板2,所述喷头12包括若干个喷嘴14,玻璃基板2上布置有若干个平行排列的分割柱20,分割柱20之间形成涂布间隔带30,其中,所述喷嘴14包括油墨入射口140和油墨喷射口142,所述油墨由油墨入射口140引入,由油墨喷射口142向玻璃基板2喷射出,在涂布间隔带30中形成不同颜色的油墨喷涂层40,所述油墨喷射口142的内径大于油墨入射口140的内径。
其中,玻璃基板2上设置有若干个分割柱20,在分割柱20之间形成涂布间隔带30,各个涂布间隔带30间距相等,用于填充不同颜色的油墨。涂布间隔带30排列方向分别与喷嘴14相平行,喷嘴14喷射出的油墨填充于涂布间隔带30上。一组或多组涂布间隔带30中可分别填充不同颜色的油墨,所述油墨为配向膜油墨。
喷头12安装于基台10下端,其包括若干个相互并排的喷嘴14,所述喷嘴14与玻璃基板2上的涂布间隔带30相对。在本发明的优选实施例中,所述相邻喷嘴14之间无间隙,这样,避免喷嘴14所喷出的油墨粘接在喷嘴台面上,造成喷嘴堵塞,影响油墨的持续喷涂,由于残留的液体无法聚集黏结在喷嘴14上,也无需在喷涂过程中,对喷嘴14进行清洁,从而简化了喷涂工艺,提高了生产效率和产能,并且,减少了漏涂的现象,保障了喷涂的质量。
同时,所述喷嘴14呈喇叭状,所述喷嘴14的油墨喷射口142比油墨入射口140的内径大5-200微米,优选100-150微米;所述油墨喷射口142的外张角度为20-89度,优选30-60度。喇叭状的喷嘴可提高所喷出的油墨量,使得由油墨喷射口142喷出的油墨滴的形状为椭圆状,扩大了油墨在水平方向上的表面积,油墨的宽度加大,高度变小,使其可均匀地注入各个涂布间隔带上,喷涂量均匀,各个油墨喷涂层的厚度均一。并使得吐出的油墨在空中连接融合形成一薄膜,落到油墨间隔带30中,覆盖于玻璃基板表面,形成油墨涂布层40。所述油墨喷射口142呈内凹形,可有效防止油墨残留在其上。由于无需根据涂布间隔带30的数量,配置一比一喷嘴14,可减少喷嘴的配置数量。
在本发明的优选实施例中,所述喷墨涂布装置1进一步包括压电传感器16,其设于喷嘴14的上方,通过改变电压而产生不同大小的拉力作用于喷嘴14上,以改变喷嘴14的口径大小,以调整油墨的喷射量。所述压电传感器16与喷嘴14一一对应,其为压电陶瓷传感器。所述压电传感器16通电后产生电场,使得喷嘴在外加电场作用下,产生机械变形,通过改变压电传感器16上的电压大小,以调整喷嘴的受力大小,使得喷嘴的外形和口径发生相应的改变,若电压增大,则喷嘴受力增大,随之喷嘴的口径也相应增大,喷射的油墨量也增大;即所述喷射的油墨量与电压呈正比例关系。
所述涂布间隔带30中放置彩色滤光片、TFT基板或OLED基板涂布成膜。
本发明还提供了一种喷墨涂布方法,其包括以下步骤:
步骤1)将玻璃基板放置于基台上,通过对位控制系统将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
在本发明的优选实施例中,在步骤2)中,设定喷涂范围、时间和所喷涂的喷嘴,启动喷嘴,使得从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨,这样,可根据设定的要求进行喷涂,从而获得涂布均匀的油墨喷涂层。
本发明一种喷墨涂布装置采用了喇叭状的喷嘴,相互紧密依靠,相邻喷嘴之间无间隙,既提高了油墨的喷涂量,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,同时,由于喷嘴之间无间隙,避免了残余喷墨聚集黏结于喷嘴的外表面上,造成喷嘴的堵塞,减少了喷嘴清洗的工序,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。并且,通过改变施加于压电传感器上的电压大小,随之改变喷嘴的口径,从而调整油墨的喷射量,因此,可微量调整油墨喷射量,使得喷涂工艺更为精确化。
Claims (10)
1.一种喷墨涂布装置,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,其特征在于:所述喷嘴包括油墨入射口和油墨喷射口,油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,所述油墨喷射口的内径大于油墨入射口的内径。
2.根据权利要求1所述的喷墨涂布装置,其特征在于:相邻的所述喷嘴之间无间隙。
3.根据权利要求2所述的喷墨涂布装置,其特征在于:所述喷嘴呈喇叭状,所述油墨喷射口呈内凹形。
4.根据权利要求1所述的喷墨涂布装置,其特征在于:所述喷墨涂布装置进一步包括压电传感器,其设于喷嘴的上方,通过改变电压而产生不同大小的拉力作用于喷嘴上,以改变喷嘴的口径大小。
5.根据权利要求4所述的喷墨涂布装置,其特征在于:所述压电传感器与喷嘴一一对应,其为压电陶瓷传感器。
6.根据权利要求2所述的喷墨涂布装置,其特征在于:所述喷嘴的油墨喷射口比油墨入射口的内径大5-200微米,所述油墨喷射口的外张角度为20-89度。
7.根据权利要求3所述的喷墨涂布装置,其特征在于:由所述油墨喷射口喷出的油墨滴的形状为椭圆状。
8.根据权利要求1所述的喷墨涂布装置,其特征在于:所述玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,喷嘴向玻璃基板喷涂油墨,在涂布间隔带中形成不同颜色的油墨喷涂层。
9.一种采用如权利要求8所述喷墨涂布装置的喷墨喷涂方法,其特征在于包括以下步骤:
步骤1)将玻璃基板放置于基台上,将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
10.根据权利要求9所述的喷墨涂布方法,其特征在于:在步骤2)中,从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨。
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CN108917580B (zh) * | 2018-09-14 | 2020-07-07 | 重庆惠科金渝光电科技有限公司 | 涂布头凝结物的检测方法及滤光片的生产工艺 |
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