The automatically inspect and control system for thickness of tire cord fabrics is not equipped for the calendar machines that made in china up to now . because of the thickness of tire cord fabrics is measured and controlled by manual , the quality of products cannot be guar anteed and a lot of rubber compound were wasted . in the article , the data process and data read of the other calendaring process parameters have designed 另外，由于被控制胶片厚度较薄，若控制系统执行机构大幅度动作，严重时有可能造成压延机两辊相抵，使辊筒断裂等重大的设备事故，因此，在常规控制的基础上，通过采用增量式调节的特点，来实现厚度的自动控制，建立并推导切合现场实际使用的数学检测公式和数学控制模型，然后通过编制相应的计算机软件来实现控制的目的， 。
With regard to the analysis on the plastic machinery market , it is impossible to make accurate statistics on its sales structure because the plastic mechanical products have a large quantity of kinds . generally , the injecting machines are sold more in the south ; plastic film equipment sets are distributed mainly in shangdong , hebei , and inland regions where water is in short supply ; and manglers are distributed mainly in foshan of guangdong 塑料机械的市场分析由于塑料机械产品门类很多，其销量结构无法定量统计，总体上讲，塑机的主要消费市场，注射机在南方的销量较大，并逐步向我国北方扩散地膜机主要集中在山东河北和内陆缺水地区压延机集中在广东佛山一带。
