The utility model discloses a coating device for a roller coater, which comprises at least one set of coated roller and coated scraper. The same coating roller and coating blade are on the same side of the PCB. The wet film of the coating is located between the coating roller and the coated blade, and the outer surface of the coated roller is evenly set up with a plurality of coated teeth, and the adjacent coating is applied. The tooth between the teeth is formed between the teeth which can hold the wet film, and the wet film in the intertooth slot is transferred to the surface of the PCB by the roll wheel rotation. The coated tooth is a trapezoid tooth with an isosceles trapezium, the height of the coated tooth is 10 13mil, the width of the base of the coated tooth far away from the center of the coated roller is 3 5MIL, the clip between the adjacent coated teeth. The angle is 75 and 80 degrees. Through the improvement of the coated roller, the utility model has less wear on the top of the coating tooth of the coated roller, thus achieving the effect of stabilizing the film of the coated roller belt, thus the thickness uniformity of the coated wet film is good, and the coating efficiency is high and the coating process is stable.
【技术实现步骤摘要】
一种滚轮涂布机的涂布装置
本技术涉及涂布机
,特别是涉及一种滚轮涂布机的涂布装置。
技术介绍
滚轮涂布机适用于PCB(印刷电路板)生产流程中的内层影像转移。通过感光湿膜将设计的图形转移至PCB面,再使用光聚合湿膜,达到保护线路图形从而在蚀刻流程使得PCB面上仅留存所需要的图形。而此湿膜需要通过涂布滚轮均匀的涂布于PCB表面,形成一层厚度均匀的湿膜层。现有的滚轮涂布机主要是通过涂布滚轮的涂布齿之间的槽内储存一定的湿膜,之后涂布滚轮转动将其带至PCB的板面上,实现涂布,湿膜的厚度主要依靠涂布滚轮的涂布齿的形状和尺寸。现有的涂布滚轮的涂布齿的设计不合理,极易磨损,在一定工作时间后,其会被磨损,导致涂布齿的高度变小,所能携带的湿膜的量随之减少,最终导致板面上的湿膜的厚度不足。为了克服上述缺陷,本领域技术人员积极创新研究,以期创设出一种滚轮涂布机的涂布装置。
技术实现思路
针对现有技术存在的问题,本技术提供了一种滚轮涂布机的涂布装置,通过对涂布滚轮的改进,涂布滚轮的涂布齿的顶部磨损较小,达到涂布滚轮带膜量稳定的效果,从而涂布后的湿膜的厚度均匀性佳,且涂布效率高,涂布过程稳定。 ...
【技术保护点】
一种滚轮涂布机的涂布装置,其特征在于:所述涂布装置包括至少一组涂布滚轮(1)和涂布刮刀(2),同组的涂布滚轮和涂布刮刀位于PCB(4)的同侧,涂布用的湿膜(3)位于所述涂布滚轮和所述涂布刮刀之间,所述涂布滚轮的外周面均匀设置多个涂布齿(11),相邻的涂布齿之间形成能够容纳所述湿膜的齿间槽(12),通过涂布滚轮转动将齿间槽内的湿膜转印到PCB(4)的表面;所述涂布齿是截面为等腰梯形的梯形齿,所述涂布齿的高度(h)为10‑13mil,所述涂布齿远离涂布滚轮的中心的底边的宽度(w)为3‑5mil,相邻所述涂布齿之间的夹角(α)为75‑80°。
【技术特征摘要】
1.一种滚轮涂布机的涂布装置,其特征在于:所述涂布装置包括至少一组涂布滚轮(1)和涂布刮刀(2),同组的涂布滚轮和涂布刮刀位于PCB(4)的同侧,涂布用的湿膜(3)位于所述涂布滚轮和所述涂布刮刀之间,所述涂布滚轮的外周面均匀设置多个涂布齿(11),相邻的涂布齿之间形成能够容纳所述湿膜的齿间槽(12),通过涂布滚轮转动将齿间槽内的湿膜转印到PCB(4)的表面;所述涂布齿是截面为等腰梯形的梯形齿,所述涂布齿的高度(h)为10-13mil,所述涂布齿远离涂布滚轮的中心的底边的宽度(w)为3-5mil,相邻所述涂布齿之间的夹角(α)为75-80°。2.根据权利要求1所述的一种滚轮涂布机的涂布装置,其特征在于:所述涂布齿的高度为12.81mil;所述涂布齿远离涂布滚轮的中心的底边的宽度为3.35...
【专利技术属性】
技术研发人员:黄铭宏,
申请(专利权)人:定颖电子昆山有限公司,
类型:新型
国别省市:江苏,32
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。