PLC auto-controlled environmental protection type internal spraying machine

The utility model relates to the technical field of packaging machinery, more particularly, a PLC automatically-controlled environment-protective inner spraying machine which is used to spray coat on the inner surface of the packing steel drum. The spray gun is connected with the reciprocating device arranged on the pedestal; a rotary locating device is arranged on a base plate and is arranged under the spray gun; the dowel disc of the rotary locating device matches with the bottom of the steel drum to be sprayed; At the same time, a water screen circulating device is arranged on the side of the base plate which the spray gun faces, the water screen decontamination area of the water screen circulating device faces the spraying area squarely. The spraying adjustment of the inner spraying machine is realized by the PLC controller arranged on the base plate. By adopting the structure, the steel drum can be effectively positioned through the matching between the dowel disc and the bottom of the corresponding steel drum, the operation is easy and convenient; The spray gun is automatically controlled by the PLC controller and can realize the effect of uniform spray, non-drip, no stack of the paint and high smooth finish of the internal sprayed surface. Furthermore, the water screen circulating device of the utility model can effectively solve the problem of environment protection. 本实用新型涉及包装机械技术领域，特指一种用于给包装钢桶内表面喷涂涂料的PLC自动控制环保型内喷机。其喷枪与一安装在机座上的往复装置连接，机座上、位于喷枪的下方设有一旋转定位装置，该旋转定位装置上的定位盘与欲喷涂的钢桶之底端相匹配；同时在机座之喷枪口朝对的一侧设有水帘循环装置，该水帘循环装置之水帘净化区正对喷涂区间，所述内喷机的喷涂调节由安装于机座上的PLC控制器控制。采用这样的结构后，通过定位盘与相应钢桶的底端相配合即可有效定位钢桶，操作简单方便；而喷枪由PLC控制器自动控制，达到内喷漆均匀、无流挂、无堆积，喷涂内表面光洁度高，同时本实用新型还配有水帘循环装置，从而有效地解决环保问题。