Hot press new fast closing oil supply system

Leading Word: The new machine's quick-closing fuel supply system for hot press adopts a new oil supply principle for compound cylinders. The system uses a high-pressure pump to input hydraulic oil into a small piston cylinder, and then a small piston cylinder drives the piston of the large cylinder to quickly inject hydraulic oil into the plunger cylinder of the hot press machine so as to achieve the purpose of quick oil supply and rapid closure.

Wood-based panel hot press machine is a kind of machine that uses pressure to laminate multilayer boards into wood board. It is widely used in the manufacture of various types of building boards and woodworking boards. This type of hydraulic press requires fast closing speed and high pressurizing speed. . Nowadays, the hot oil supply system of the hot press generally adopts two kinds of oil supply methods: the first method is the double pump oil supply or the multi-pump oil supply. The oil supply method is to increase the power of the motor and the number of the motor. Increase the flow of liquid in the hydraulic system, so as to achieve the purpose of rapid oil supply. The second quick oil supply method is nitrogen accumulator fuel supply. This kind of oil supply method uses compressed gas to increase the pressure in the fuel tank. When the pressure reaches a certain value, the punch valve is opened to achieve the purpose of rapid oil supply. The third quick oil supply method is double cylinder lift. This kind of oil supply method uses a larger high pressure pump to quickly inject oil into a small piston cylinder, so as to achieve the purpose of rapid oil injection.

The main drawback of the first oil supply method is that the motor has a large power, consumes more energy, and the noise of the motor is relatively poor. The working environment of the worker is poor and the oil supply method converts high pressure. It takes too long to fight high pressure. For the second fuel supply system, there are mainly complex system structures, slower post-injection speed, inconvenient use and maintenance, and greater risk. The main disadvantage of the third oil supply method is that the hydraulic oil of the main oil tank requires the liquid filling valve to open, so that there is air in the main oil tank, resulting in the main oil tank having a large negative pressure, resulting in waste of resources and failure of the plunger cylinder. durable.

Linyi City Mingda Wood Machinery Co., Ltd. combined with the hot stamping machine work features, has developed a new type of hot press oil supply system. The system uses a completely new concept design, which not only improves the service life of the hot press, but also saves 65% of energy and 50% of hydraulic oil compared to the previous oil supply system.

The hydraulic system uses a motor with a relatively low power, so the hydraulic system can save the cost of the manufacturer compared to other hydraulic systems. The most important thing is to solve the work requirement of quick closing during the work of the man-made board hot press, and at the same time The pressure of the working cylinder is quickly increased, the working time of the hot press is saved, the working efficiency of the hot press of the artificial panel is improved, and the closed hydraulic oil transmission system can increase the service life of the hydraulic components of the hot press.

Source: Linyi Mingda Wood Machinery Manufacturing Co., Ltd.