Based on the analysis of the schematic diagram of pneumatic roofbolter, plot the route map and use it to analyse the cause of trouble with roofbolter.
通过对气动锚杆钻机原理图的分析，绘制出路线图，并利用路线图对锚杆钻机常见故障进行了分析。
Original high-quality and reasonable pneumatic air route design, coupons hot compressed air pressure control work, no external power supply, k work safety is stable and reliable.
采用优质气动原件及合理的气路设计，券压缩空气控制压烫工作，无需外接电源，工作稳定可靠安全。
Abstact:This article mainly introduced the improvement of DB420 pressing device of multi_function packaing machines and the regarding control methods of the pneumatic system and the electrical route.
本文主要介绍了DB420多功能包装机压印装置机械部分的改进及相应的气动、电路控制方法。
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