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包裝印刷廠印刷機機墨輥排列的原則

From:Buke printing factory of China深圳步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-17 | 620 Views | 🔊 Click to read aloud ❚❚ | Share:
包裝印刷廠印刷機機墨輥排列的原則是:(1)軟硬間隔排列墨輥。墨輥排列是硬質輥與軟質橡膠輥間隔排列,這樣能夠保證在一定壓力下墨輥之間彼此接觸良好(2)油墨流動方向一致。應使油墨從墨鬥經過各中間墨輥傳到著墨輥時,油墨流動的方向與印版滾筒的旋轉方向一致
包裝印刷廠印刷機機墨輥排列的原則

包裝印刷廠印刷機機墨輥排列的原則


(1)軟硬間隔排列墨輥。墨輥排列是硬質輥與軟質橡膠輥間隔排列,這樣能夠保證在一定壓力下墨輥之間彼此接觸良好

(2)油墨流動方向一致。應使油墨從墨鬥經過各中間墨輥傳到著墨輥時,油墨流動的方向與印版滾筒的旋轉方向一致

(3)墨輥種類要少。勻墨部分各墨輥直徑應不相同,確定墨輥的直徑時,既要考慮勻墨系數,又要考慮墨輥的品種最少,既方便製造又方便印刷廠使用維修,設備管理方便。

(4)著墨輥多為四根。著墨輥基本都是四根,前兩根供墨,後兩根補墨、收墨

(5)墨輥的直徑不相同。勻墨輥、串墨輥、重輥、著墨輥的直徑應各不相同,一根墨輥存在的缺陷不至於重復反映到其他墨輥的同一位置,防止印版上的印跡重疊和產生墨杠。

(6)最後一根著墨輥直徑大。最後一根著墨輥的直徑最大,對印版的勻墨作用大,收墨作用也大,防止產生墨杠和花版

(7)不對稱排列勻墨輥。勻墨輥的排列直接影響各輥著墨率的大小,多數勻墨系統墨輥採取非對稱排列,使前兩根著墨輥的著墨率之和占80%以上,後兩根著墨輥的著墨率之和為20%,起到補墨和收墨的作用。

(8)墨路短、墨輥少。勻墨排列的發展趨勢是向著墨輥根數少和墨路短的方向發展,在滿足勻墨要求的前提下,墨輥盡可能少結構盡可能簡單(現代平版膠印機墨輥的總根數在17~20根)。

(9)墨輥直徑小。串墨輥和勻墨輥直徑向小直徑方向發展,在勻墨系統系數相同的情況下,小直徑墨輥數量多,打墨線數大,有利於提高勻墨效果,但也會使輸墨裝置結構復雜化。

10)中間著墨輥直徑小。中間兩根著墨輥多數直徑較小,拆卸時容易從中間空當中掏出來。


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