l基于 PLC 的闸瓦液压机控制系统 英文及翻译Four-column hydraulic press1.Four-column hydraulic press used Four-column hydraulic press for plastic materials in the pressing process. Products such as powder molding, plastic molding, cold (hot) extrusion of metal forming, sheet tension and transverse compression, bending pressure, turn through, correction process. 2. Four-column Hydraulic Press Features Four-column hydraulic press with an independent power sector and the electrical system, using the button focus control enables adjustment, manual and semi-automatic three kinds of work: Four-column hydraulic pressure of work, pressing speed, load fast and slow down the schedule and the scope of may need to be adjusted according to process and can complete the top of the process, can take the top out of process, drawing process three kinds of process methods, each process has to be pressure, will be two-way action for the selection process, constant pressure molding process After the suppression of a delay with the top and automatic return. Four-column hydraulic characteristics. Four-column hydraulic press is the use of pressure compression forming objects. Is used to provide medium pressure hydraulic oil. Four-column hydraulic machine structure is simple and economical, practical. Appearance by octagonal shape. Four-column hydraulic press control electrical box with glass doors, PLC or computer control two general appliances, with reliable, reliable, direct action, and maintenance. Centralized control of the independent button. With the adjustment, his hands a single cycle of two kinds of operation mode. Four-column Hydraulic Press Hydraulic Control Valve can be used integrated system, and reliability, long life, small hydraulic impact, reducing lthe connecting pipe and the leak point, or common hydraulic control two. 3. Four-column hydraulic machine failure and maintenance of the common methods Four-column hydraulic machine failure and maintenance of the common methods: in the winter and the worse condition, should be ground on the four-column hydraulic system inspection, ground maintenance, oil change jobs often. Four-column hydraulic press work on the oil storage and transfer should be very much attention. Sheng drums plus special signs should be up and cover. In the winter, do not pay attention to the barrel while the result of the air condensed into water mixed with oil, not to be rusty rust bucket leather pieces into bins. Winter on the column hydraulic machine engine and other mechanical systems to the various preventive measures such as cover frost, heat insulation, for work with low viscosity oil, are suitable for hydraulic systems. In the Four-column hydraulic press hydraulic transmission system, are some of the more sophisticated parts. People on the four-column hydraulic machine hydraulic felt like labor-saving convenience, but at the same time feel that it is easy to damage. The reason is not clear column hydraulic main working principle and structure characteristics, which do not quite understand the preventive maintenance approach. Hydraulic system has three basic “causative“ factors: pollution, over-heated and into the air. These three negative factors has close relationship, there any one issue, it will create another one or more related problems. From the practice shows that 75% of hydraulic system “disease“ because, were caused by these three. 1, four column hydraulic press working oil into the dirt and deterioration due to 2, overheating 3 solution into the air: The Four-column hydraulic system some of the major precision parts cleaning and assembly, shall be carried out in a very clean room, indoor should be have clean floors and windows and doors closed, the temperature is best maintained at around 200C. l4. Four-column hydraulic machine common method of general maintenance Four-column hydraulic press common method of general maintenance (1) Four-column hydraulic press action, or failure of electrical wiring is not strong then check the electrical fault (2) Four-column hydraulic press slider creeping accumulation of air or a system, two precision air pump to adjust properly or check the pump suction column short of petroleum and an air intake pipe is then repeatedly pressurized two columns up and down movement and add oil, re- adjustment accuracy (3) Four-column hydraulic press with pressure when the slide slow down its support for excessive back-pressure valve to the cylinder to adjust the cavity without pressure, the maximum not more than 1MPa, four column hydraulic press, after stopping a serious one slipped under the brim slide 2 pressure valve seal ring leakage pressure adjustment is too small or the pressure I strictly an observation brim, hair oil deflated to adjust pressure Check Valve 2 5. Four-column hydraulic pressure gauge pointer swings a powerful memory with air pressure gauge oil line pipe mechanical vibration 3 2 1 on the pressure gauge when the damage slightly loosen the fittings, gas dischar