The invention discloses an automatic feeding and automatic sand returning
dry sand blasting room. The automatic feeding and automatic sand returning
dry sand blasting room comprises a
sand blasting room body, a spraying room body connected with the
sand blasting room body, an automatic feeding conveying belt, a fixing base arranged on the conveying belt, a dust removing device connected to the top of the
sand blasting room body and the top of the spraying room body, a sand blasting device connected with the sand blasting room body, lighting devices, ventilation devices, lifting sliding
doors and an automatic sand returning device, wherein the lighting devices and the ventilation devices are arranged on the sand blasting room body and the spraying room body; and the lifting sliding
doors are arranged on the two sides of the sand blasting room body and the two sides of the spraying room body, and the automatic sand returning device is arranged below the sand blasting room body. According to the automatic feeding and automatic sand returning
dry sand blasting room, the sand blasting room body and the spraying room body are arranged together, a workpiece is automatically conveyed to the work position through the automatic feeding conveying belt, the workpiece on which sand blasting is carried out is automatically conveyed into the spraying room body to be sprayed, and work continuity is achieved. Meanwhile, sand materials generated in the sand blasting room body are separated and treated through the automatic sand returning
system and can be repeatedly utilized, and the sand materials in the sand blasting room body are prevented from being stacked.