The utility model relates to an anti leakage device used for fixing a printing plate in a computer direct plate making device. The technology to be solved is that the device provided by the utility model can effectively solve the problem of air leakage when the drum is adsorbed on the printing plate. The utility model has the advantages of stable and reliable use of the printing plate and safe use, and has simple structure and convenient installation. The technical proposal is that a new outside of the drum machine to plate anti leakage device for optical drum adsorption plate, including plate positioned in the tail version drum circumferential surface, length of axis direction of plate and tail version drum parallel plate; tail version on the location of a number of anti leakage plug can be inserted into the light the gas tank in the circumferential surface of the drum. The anti leakage plug for a set of horizontal strips, gas groove strips of width and height and the width and depth of adaptation; the right end of the strips to above the fold, fold the top of convex head made of cylindrical, tail version of the bottom plate the surface is provided with grooves and convex head and the suitable.
【技术实现步骤摘要】
本技术涉及一种CTP设备部件,具体是计算机直接制版设备中固定印版时采 用的防漏气装置。
技术介绍
在CTP(计算机直接制版)设备中,印版固定于光鼓表面、随光鼓在高速旋转中完 成激光扫描成像;因此它能否稳定、良好地固定于光鼓表面,不仅影响到图文信息的输出质 量,也影响到直接制版机的正常运行。 现有的外鼓式直接制版机,其光鼓表面对应最大幅面印版的吸附区域都刻有纵横 交错的气槽2(见图1的光鼓表面展开图;由图中光鼓的轴线7可知其处于水平状态),气 槽2均通过光鼓内部的管路连通至设备外部的负压装置(如真空泵等),以产生对各种幅面 印版的负压吸附作用力。而在实际使用中却存在如下问题光鼓吸附印版时、将产生不同程 度的"漏气"现象,即外界空气在真空负压的作用下、将通过未被印版覆盖的气槽部位流入 光鼓内部,导致光鼓内部的真空负压不能保持恒定,从而影响到印版在光鼓表面吸附的牢 固度。当出现"漏气"情况时,"飞版"(即印版在离心力作用下被甩离光鼓)现象仍难免发 生、很不安全;总之,现有直接制版机光鼓吸附印版时的"漏气",已经影响到成像的效果和 客户的使用,并且还留有事故隐患,故急待 ...
【技术保护点】
一种新型外鼓式直接制版机光鼓吸附印版的防漏气装置,包括定位在光鼓(6)圆周表面的版尾压板(4),版尾压板的长度方向与光鼓的轴线(7)相互平行;其特征在于所述的版尾压板(4)上定位着若干可插入光鼓圆周表面气槽(2)中的防漏气堵头(1)。
【技术特征摘要】
【专利技术属性】
技术研发人员:项建龙,卢伟毅,
申请(专利权)人:项建龙,
类型:实用新型
国别省市:86[中国|杭州]
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