Manual control (debugging)
Put the workpiece on the lower die, open valve 1, let the valve into the air, at this time the booster cylinder punch quickly close to the workpiece. Open valve 2 again, let the valve air, then can press the workpiece forming. When returning, the first toggle valve 2, and then toggle valve 1, the booster cylinder punch will quickly return. This scheme uses fewer components and has lower cost for pure pneumatic work. In order to improve the production efficiency of enterprises in automatic production, the dynamic reversing valve is replaced by a foot switch.
Pressure cylinder can be applied to the external control circuit of the pneumatic control system and the workpiece on the lower die, 1 action, valve inlet valve 1, then the punch fast approaching artifacts, such as the punch after come into contact with the workpiece, gas-liquid boosting cylinder pressure rise, pressure switch action, make the valve 2 actions, 2 inlet valve, pressure cylinder punch stamping workpiece forming. After a delay of 5 seconds, valve 1 and valve 2 will operate respectively to make valve 2 enter air and punch back quickly.
The scheme needs to be equipped with an electric control cabinet, which can also be matched with manipulator loading and unloading parts to realize the automation of the production line. Compared with the pure manual system, the cost is higher, but the degree of automation is relatively high, the operation is also safe, so this scheme is widely used in high automation requirements. Automatic selection of gas-liquid supercharging cylinder is included.
Booster cylinder is a hydraulic component that can transform the input pressure and output it at higher pressure. Supercharging cylinder is a combination of oil pressure cylinder and supercharger.
Principle of gas-liquid booster cylinder
From large to small, the pressure will also change with different sizes of the principle, so as to achieve the pressure pressure to increase to tens of times the pressure effect, taking the pre-pressurized cylinder as an example: When work pressure in the hydraulic oil (or piston) surface, the hydraulic oil will be compressed air cavity and flow to the preloading trip, the hydraulic oil will quickly push for displacement, displacement resistance is greater than atmospheric pressure when the work pressure cylinder is to stop the action, at this point, the pressure cylinder pressure chamber for electrical signals (or pneumatic signal), start charging so as to achieve the aim of molding products. Structure and advantages of gas-liquid pressurized cylinder system - the use of general air pressure can achieve the high pressure of the hydraulic cylinder, no hydraulic unit is required. Its structure is cylinder + oil cylinder + empty oil conversion cylinder.