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BuKe factory >> knowledge >> 印務公司定位板與紙邊不平行造成套印不準

印務公司定位板與紙邊不平行造成套印不準

From:Buke printing factory of China深圳步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-18 | 520 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
​印務公司側規擋紙板高或定位板與紙邊不平行,造成套印不準。其原因是:在高速印刷過程中,印品有時不僅縱向套印不準,而且還會出現橫向套印不準的現象,經檢查機器發現有兩點問題:
印務公司定位板與紙邊不平行造成套印不準

印務公司側規擋紙板高或定位板與紙邊不平行,造成套印不準。其原因是:在高速印刷過程中,印品有時不僅縱向套印不準,而且還會出現橫向套印不準的現象,經檢查機器發現有兩點問題:

一是側規擋紙板過高,由於拉紙時速度快,紙張到達側規擋紙板時撞擊力過大,而紙邊的強度低(特別是薄紙),承受不了這樣大的撞擊力,就會產生捲曲現象,影響了紙張定位的準確性;

二是側規定位板與紙邊不平行,接觸時是點接觸而不是線接觸,導致側規拉紙時紙張被拉斜,從而產生橫向套印不準。

排除的方法:調整側規擋紙板高度。首先擰松鎖母,轉動調節螺母使擋紙板與遞紙牙台間距為3-4張紙厚(印刷標準紙時應調整為0.6mm)同時調好定位板與紙邊平行。

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