Main Structure of Core Shooting Machine
The core shooter is composed of a bed, column, upper plate, mold frame parts, sand hopper, airbag, and return sand scraping device. The bed is welded by section steel and steel plate. It has sufficient rigidity and strength to ensure the smooth operation of each component. The mold clamping cylinder is installed inside the bed, the control solenoid valve and the speed control valve are inside the bed, the control button plate is fixed on the side of the bed, and the equipment runs in a single week. Controlled by a programmable logic controller (PLC). The two uprights are installed behind the bed and are the necessary components to connect the bed and the upper beam. The two columns are welded with thick steel, which has higher strength and stability. The worktable, four guide columns and guide sleeves form a mold frame part. The worktable is connected to the mold clamping cylinder, and the mold opening and closing process are completed along with the four guide columns. When the movable mold is moved down into place, the four core rods can eject the sand core to facilitate manual core removal.
The beam component is installed above the machine tool, the upper cylinder is equipped with a compression cylinder shooter, an air storage bag, a walking cylinder is installed on the column, and the bottom of the upper panel is equipped with a gate. When the sand barrel is retracted, it can automatically open the gate for sand. A sand stop cup is installed above the gate. It can stop the inflow automatically when the sand is full. There are four fixed shafts in the pressing part in front of the upper plate to hang the upper core box, and the lower core box is installed on the workbench of the base. The open space between the upper and lower core boxes is more convenient for the operator to take the core, breaking the previous horizontal division The four guide shafts of the mold opening and closing mold of the core shooting machine are installed on the base to complete the mold opening and closing. The open type is more user-friendly, the operation is simple, and the production efficiency is high.
The return stroke sand scraping device is installed in the middle of the two square boxes, and is composed of sand scraping cylinders, sand scraping plates, brackets and other components. It is fixed between the connecting plates connecting the two square boxes. When the sand shooting head completes the return stroke, the scraping The sand device moves, and the sand scraping cylinder pushes the sand scraping plate down to the upper surface of the mold, scraping away the residual coated sand, which is convenient for opening the upper core of the mold, and pushing the sand core away from the upper mold, so as not to open the sand core The upper model surface is damaged to ensure the quality of the sand core.
Electric control uses Japan OMQON. The electric control system consists of an electric box, position signal switch and control box. The electric box includes a power switch, an electric heating control element, a program controller and so on.
The program controller is the core component that has sufficient control over the entire machine. This electrical control system uses a programmable controller imported from Japan. This system uses an integrated circuit, a proximity switch as the signal element of the detector position, and the switching current is provided by the switching power supply in the electrical box.