介绍了基于LOGO!控制器的真空加压浸溃设备气动顺序控制系统的总体方案、硬件系统和软件系统.气动顺序控制系统采用接近开关自动控制罐盖定位、关盖、开盖和锁紧操作,LOGO !自动步进执行真空加压浸渍过程循环的抽真空、吸糖液、加压、浸渍、放糖液工序,能够连续自动完成整个加工过程.该设备实现了快速均匀浸糖,通过调整各工序的操作时间参数,可广泛应用于食品的强化浸渍加工.%The control principle, design scheme, hardware and software of pneumatic sequential control system based on LOGO! Controller for food vacuum pressure impregnation equipment were comprehensively analyzed. The pneumatic sequential control system adopted inductance approach switches to finish the tank cover locating, closing, opening and shutting operation, and adopted LOGO! Controller to run the single vacuum pressuring impregnation cycle including vacuum pumping, sugar sucking, pressuring, impregnating and sugar sucking procedures, so that carried out the whole processing procedures step by step automatically. The vacuum pressure impregnation equipment could finish impregnating sugar rapidly and uniformly, and be suitable for plenty of materials impregnating through adjusting each impregnating processing times.
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