Meter-gram-weight closed-loop double-weighing control device of film blowing machine

The utility model relates to a closed-loop double-weighing control device for gram weight per meter of a film blowing machine. According to the utility model, the two weighing hoppers are matched to realize closed-loop weighing and weighing according to times, each gram of raw materials can participate in weighing, the main controller is used for collecting data of two times of weighing, each time of data is calculated with additionally collected meter counting data, and the calculation result is compared with the weighing data of the first weighing sensor, so that errors are automatically compensated; the whole device is optimized and improved on the basis of the prior art, the structure is simple, improvement and optimization are facilitated, practicability is high, and application and popularization are facilitated. 本实用新型涉及一种吹膜机米克重闭环双称重控制装置。本实用新型采用两个称重料斗配合，实现闭环式称重，按次称重，原料的每一克都会参与，通过主控制器采集两次称重数据，每一次数据与另外所采集到的计米数据进行运算，运算结果和第一称重传感器的称重数据相比较，有误差自动补偿，直至达到精确，实现了薄膜与重量的控制精准性，而整个装置是在现有技术基础了进行了优化改进，结构简单，便于改进优化，实用性强，利