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BuKe factory >> knowledge >> 深圳印務公司印刷機遞紙牙磨損造成套印不準

深圳印務公司印刷機遞紙牙磨損造成套印不準

From:Buke printing factory of China深圳步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-18 | 404 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
​印務公司印刷機遞紙牙磨損,造成縱向套印不準。其原因是:在下擺式遞紙機構的膠印機中,印刷過程中出現前規十字線套印不準,檢查前規定位時間正常,再檢查紙張到達前規定位時發現紙張有錯動,仔細觀察後可能發現當紙張輸送到前規處叼口有下垂現象,當用橫紋紙或柔軟的鍍鋁紙印刷時,輸送到前規時紙張下垂、捲邊的情況更為突出,再觀察遞紙台板看出是斜坡面,紙張到達前規定位時,其牙臺下麵處於空穴狀態,失去了支撐面,這樣必然產生下垂,引起捲邊。
深圳印務公司印刷機遞紙牙磨損造成套印不準

印務公司印刷機遞紙牙磨損,造成縱向套印不準。其原因是:在下擺式遞紙機構的膠印機中,印刷過程中出現前規十字線套印不準,檢查前規定位時間正常,再檢查紙張到達前規定位時發現紙張有錯動,仔細觀察後可能發現當紙張輸送到前規處叼口有下垂現象,當用橫紋紙或柔軟的鍍鋁紙印刷時,輸送到前規時紙張下垂、捲邊的情況更為突出,再觀察遞紙台板看出是斜坡面,紙張到達前規定位時,其牙臺下麵處於空穴狀態,失去了支撐面,這樣必然產生下垂,引起捲邊。

那麽遞紙牙台的斜坡面是由於遞紙牙叼住紙,帶紙加速下擺時與遞紙牙台產生滑動摩擦,久而久之,把遞紙牙台前端沿邊磨成了弧形的斜坡面。遞紙牙從斜坡面上叼取的不平穩的紙張,再加速送給壓印滾筒叼紙牙排帶其印刷,則會出現不合格的印品。

排除的方法:修復遞紙牙台平面,一般拆下牙台板,經氣焊(電焊)補平牙臺面,恢復原狀即可(要求更換新台板)安裝後再印刷。

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