Oil inlet throttling speed regulating circuit of vacuum hot press

The speed control loop system in this way can be mainly used for the oil cylinder that we often need to bear a positive impact load. The characteristic is that the throttle valve is placed on the oil inlet side of the cylinder 1, and the residual oil of the oil pump is discharged through the overflow valve. The pump learns the pressure management work according to the setting of the overflow valve, and the efficiency level of the working environment is low. The titanium alloy indenter of the fully automatic hot press molding machine ensures the average temperature, rapid temperature rise and long service life. The pressure head is specially designed to be horizontally adjustable to ensure the average pressure of the components. Temperature numerical control, clear and precise. Equipped with digital pressure gauge, the pressure range can be preset. Vacuum plate vulcanizer is a kind of electrical and mechanical connection device that heats two parts coated with flux tin in advance to a temperature sufficient to melt and flow the solder. After curing, an electrical and mechanical connection device is formed between the parts and the solder. The heating rate can be selected according to different products. Due to the special design of the welding head surface of the hot press brand, the resistance of the welding surface is very small, and the current will pass through the section with the minimum resistance. By constantly changing the voltage, adjusting the current level, and rapidly heating the welding head. (1) The oil inlet throttle speed control circuit of the throttle valve of the vacuum hot press. In the hydraulic circuit shown in the figure, the throttle valve model connected in series on the oil inlet is used for AC speed control. During the speed control design process, the overflow valve port is normally open. The development of the imported throttle speed control circuit has the advantages of simple economic structure, low cost, wide speed control application range, and the bearing innovation capacity does not change with the speed. The implementation of relevant components can obtain very low speed Degrees. Because of its low road efficiency, poor speed stiffness and inability to directly bear negative loads, it is suitable for occasions with low power, low speed and low requirements for relative stability of speed.