平板式寬幅數(shù)字噴印設備的結構設計

摘    要

計算機應用的發(fā)展使得數(shù)字噴墨印刷代替了傳統(tǒng)的印刷方式，大幅面平板式印刷機更是帶來了印刷業(yè)突飛猛進的發(fā)展，平板式寬幅印刷機能直接在硬質板或者柔性較差的承印材料如硬質PVC、金屬，木板等上進行印刷，使印刷業(yè)有了進一步發(fā)展。
本文主要對大幅面平板式印刷機的結構進行設計，對各部分零部件設計，實現(xiàn)噴印動作，主要是對橫向傳動系統(tǒng)和縱向傳動系統(tǒng)進行設計。
橫向傳動系統(tǒng)由交流伺服電機驅動，通過齒輪減速器的減速，再用同步帶傳動帶動字車橫向移動，實現(xiàn)噴印動作。利用傳感器對字車位置進行定位，反饋到單片機，再單片機的控制下使字車能連續(xù)來回印刷。
縱向傳動系統(tǒng)由步進電機驅動，也是通過齒輪減速器減速，再用絲桿帶動平板及板材縱向移動，當字車噴印一次后，步進電機驅動平板移動一次噴印寬度的距離，然后暫停等下一次噴印結束后在移動以實現(xiàn)連續(xù)噴印。
本文還對噴印機的其它結構也做出設計，對導軌，機架，字車結構都做出選擇和設計，使得整個機體結構緊湊，噴印精度高，效率高等優(yōu)點，還實現(xiàn)了字車和板材之間的距離可調性，即能噴印不同厚度的板材。整個機體有機的結合在一起協(xié)調工作，順利完成噴印。

關鍵詞：平板，寬幅，噴印機，結構設計

ABSTRACT

The development of computer application makes digital inkjet printing to replace the traditional printing.The Large format flat printing makes the printing industry developed rapidly. The Large format flat printing can directly print in hard or soft-less printing materials such as rigid PVC, metal, wood, and so on.It makes the printing industry further development.
This article describes the structure of the large format flat printing.It designs some parts of the printing to achieve jet printing action.It Mainly designs the the horizontal and vertical transmission drive system.
Horizontal transmission drive by AC servo motor,and speed-down by the slowdown gear.It used the word car driven timing belt drive horizontal movement of action to achieve jet printing.It used the sensors to position the word vehicle location.Then it feedback to the microcontroller and under the control of the microcontroller word car return for printing.
Vertical transmission drive by the stepper motor, and speed-down by the slowdown gear.Then to drive plate and sheet metal longitudinal movement by screw.After one time the word car printing ,the stepper motor drive flat-panel mobile width of the distance between a jet printing. And then suspended, then after the end of the next jet printing moving in order to achieve continuous jet printing.
    This paper also design the other structural of jet printing machine.It choose or design the structure of all vehicles such as the rails, rack, the word car.It makes the whole body structure compact, jet printing of high precision and high efficiency .It also makes the distance between the word car and the plate adjustable.It can jet printing different thickness of the plate. The whole body of the machine is combination organic and coordination , and complets the jet printing successfully.

Key words：Flat, wide, jet printing machine, structural design

 
目   錄

摘    要 I
ABSTRACT II
目   錄 III
1  緒論 1
1.1大幅面印刷機技術的國內外發(fā)展現(xiàn)狀 1
1.1.1 國外發(fā)展狀況 1
1.1.2  國內發(fā)展狀況 1
1.2大幅面印刷機的分類 2
1.3大幅印刷機的應用領域 3
1.4大幅面印刷機技術的發(fā)展趨勢 3
1.5平板式印刷機的出現(xiàn)及特點 4
2  系統(tǒng)設計 6
2.1噴印機工作原理 6
2.2重點研究內容及實現(xiàn)途徑 6
2.2.1重點研究內容 6
2.2.2實現(xiàn)途徑 7
2.3 方案確定 8
3  橫向系統(tǒng)設計 9
3.1伺服電機選擇 9
3.2 噴印頭選擇 9
3.3 同步帶設計 9
3.4 軸設計 11
3.5 齒輪設計 14
3.6軸承及端蓋設計 17
3.7字車結構設計 18
4  縱向傳動設計 20
4.1導軌選擇 20
4.2絲桿選擇 20
4.3步進電機選擇 20
4.4軸及齒輪設計 21
4.5板材固定的設計 21
5  控制系統(tǒng)設計 22
5.1系統(tǒng)組成 22
5.2 各部分完成的功能 22
5.3噴頭小車運動控制 23
5.3.1伺服控制系統(tǒng)簡介 23
5.3.2噴頭小車伺服系統(tǒng)設計 24
5.4進給及字車的連續(xù)運動控制 25
6  總結 26
參 考 文 獻 27
致謝 28