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深圳彩印廠分析什麽叫走肩鐵

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-09-17 | 329 Views | 🔊 Click to read aloud ❚❚ | Share:


所謂走肩鐵,就是在印刷過程中,印版滾筒肩鐵與橡皮滾筒肩鐵互相接觸,也稱滾枕接觸。並以肩鐵的加工與安裝精度,去控制印刷壓力,以恆定的中心距,去支配包襯與版厚等,從而滿足提高印品質量的需要。

深圳彩印廠分析什麽叫走肩鐵


所謂走肩鐵,就是在印刷過程中,印版滾筒肩鐵與橡皮滾筒肩鐵互相接觸,也稱滾枕接觸。並以肩鐵的加工與安裝精度,去控制印刷壓力,以恆定的中心距,去支配包襯與版厚等,從而滿足提高印品質量的需要。


據考查,美國和加拿大等國的膠印機,就一直採用走肩鐵的方式。近年來,德國海德堡、羅蘭和日本小森等,對世界膠印機潮流具有代表性的廠家,也都從不走肩鐵向走肩鐵過渡膠印機選用了走肩鐵的方式,大致上具備著下述特點


①印版滾筒與橡皮滾筒的肩鐵之間的間隙為零,橡皮滾筒與
壓印滾筒的肩鐵之間仍有間隙;


②當印版與橡皮滾筒的肩鐵相接觸時,正好是其兩只傳動齒
輪在節圓處嚙合;


③肩鐵是計算與測量版材和橡皮布材料實際厚度的標準,
是滾筒在工作狀態下,真實中心距離的反映;


④傳動齒輪,盡管是斜齒輪,也很難避免嚙合間隙的產生,
故在印刷時,不能要求滾筒完全圓滑地回轉,而只有肩鐵才可以保證滾筒在工作狀態下的圓滑回轉;


⑤傳動齒輪所引起的振動,可以被肩鐵所吸收,以保證滾筒
的圓滑回轉,且能夠減少齒輪的磨損;走肩鐵的接觸壓力,要比印版滾筒與橡皮滾筒錶面之間的壓力大些,故滾筒壓力可以得到調節。

滾筒肩鐵要選用優質鋼材製成,硬度高、耐磨性能好。對滾筒部件精度的要求也高,肩鐵與滾筒並非一體,而是通過兩件組合在一起進行加工的。

深圳彩印廠分析什麽叫走肩鐵
深圳彩印廠分析什麽叫走肩鐵

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