At present, the commonly used method to separate aluminum plate is to use air knife. High pressure compressed air through the air knife, blowing to the edge of the paper, strong air flow in the top of the paper spread 1-2 pages. The higher the pressure of compressed air, the greater the flow rate, the greater the blowing force on the plate. Therefore, 8-10bar compressed air is generally used: since the compressed air below 6BA is generally used for pressing line, the air compressor with air knife shall be configured separately. In order to ensure the stable supply of high pressure air j-lu compressed air to the gas cutting machine, aluminum plate manufacturers set accumulator near the gas cutting machine to meet the requirements of instantaneous large flow of the gas cutting machine. When the accumulator reaches the air knife gas pipe, the limit flow requirements when the air knife is fully opened must be considered. Otherwise, when the air knife is used too much, the pressure drop will be too large, which will lead to the decrease of blowing force of the air knife and affect the splitting effect. In order to save energy, 1 air knife is controlled by an independent solenoid valve. In this way, in the stacking process, whether, when to open and when to close each air knife can be controlled by parameters.
There are also a variety of air knife design, common long knife and round knife. Rectangular work area is large, but the increase of energy consumption, pressure drop is very large, suitable for applications can accurately find a piece of metal plate above, such as the traditional way to open support the use of hydraulic crane car, every 10 mm in the roof, looking for a piece of the highest position, because the open support car can not accurately control the top position of the table, it must work in a very wide range of steel air knife. The utility model has the advantages of small acting area, concentrated air flow, small pressure drop and low energy consumption. However, due to the small action area, the air nozzle is required to be accurate to the maximum ﹤ 1, so that there is a layer of material on the surface of the plate, so the aluminum plate stacking trolley adopts the motor to accurately control the lifting of the trolley. In recent years, the first mock exam has two aluminum plates. At the same time, the thickness of the two plates is different, so it is necessary to control the two sides of the lifting car respectively, so as to accurately control the position of the two plates.
In order to improve the utilization rate of the equipment, the production line of general aluminum plate punch has the function of steel plate production. Therefore, the air knife needs to be integrated into the original magnetic divider. The air knife can be integrated into the side of the divider or magnetic divider. Considering that the integrated scheme of the magnetic distributor is easy to control the distance between the air nozzle and the plate accurately, which is more conducive to the work of the distributor, the scheme is recommended.
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