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Question

聚四氟乙烯薄膜具有强度高，绝缘性好，不粘性等特点。 特别电性能和机械性能较普通薄膜有较大提高，被广泛应用国防、机械、化工、石油、轻工、纺织、交通运输、特殊介质工业密封、机床设备制造与维修、日常生活等领域。在市场上有着很广阔的前景。目前工业生产的聚四氟乙烯薄膜大多数使用改装过的木板旋切机旋切加工而得，这种传统旋切机一般采用机械传动控制，生产出来的薄膜不仅质量不高，可靠性差；而且生产过程中噪音大，耗能多，生产效率不高，无法适应当今的工业生产需求。本文采用数字控制系统来控制旋切机的旋切过程，使其可以达到比较理想的旋切精度，实现自动化生产。
论文在研究和分析了旋切机的传动过程、旋切的工艺要求及工作原理的基础上，探讨出旋切控制的关键在于主轴转动和刀具进给的配合上，采用西门子公司的S7-200 CN的可编程控制器对旋切过程进行控制，并采用变频电机和伺服电机组成随动系统旋切薄膜，同时用人机界面来进行前台操作；根据控制方案采用合适的设备实现旋切的数字化控制。将PLC 应用于旋切机控制系统，有效的提高了系统的可靠性和抗干扰能力，同时也提高了控制精度，从而提高了旋切机的自动化程度。因此，具有良好的应用价值和市场开发前景。

Answer 1

The teflon thin film has the intensity to be high, the insulating property is good, not characteristics and so on coherency. The special electricity performance and the mechanical property ordinary thin film has enhances greatly, by widespread application national defense, machinery, chemical, petroleum, light industry, textile, transportation, special medium industry seal, engine bed domains and so on equipment manufacture and service, daily life.Has the very broad prospect in the market.The first industrial production teflon thin film majority uses have re-equipped the plank veneer peeling lathe turns on lathe cuts the processing, this traditional veneer peeling lathe uses the mechanical drive control generally, produces not only the thin film the quality is not high, the reliability is bad; Moreover in the production process the noise is big, consumes energy much, the production efficiency is not high, is unable to adapt the now industrial production demand.This article uses the numerical control system to control the veneer peeling lathe to turn on lathe cuts the process, enables its to be possible to achieve quite ideal turns on lathe cuts the precision, the realization automation production. The paper in studied and has analyzed the technological requirement and in the principle of work foundation which the veneer peeling lathe transmission process, turned on lathe cuts, discussed turns on lathe cuts the control the key to lie in the main axle rotation and in the cutting tool to feed coordination, used Siemens S7-200 CN the programmable controller to turn on lathe cuts the process to carry on the control, and used the frequency conversion electrical machinery and the servo electrical machinery composition servo system turns on lathe cuts the thin film, simultaneously used the man-machine contact surface to carry on the onstage operation; Uses the numerical control according to the control plan which the appropriate equipment realization turns on lathe cuts.Applies PLC in the veneer peeling lathe control system, the effective enhancement system reliability and antijamming ability, simultaneously also increased the control precision, thus enhanced the veneer peeling lathe automaticity.Therefore, has the good application value and the market development prospect.