After one roller rack is adjusted, the adjacent roller racks should also be adjusted accordingly to achieve the basically uniform load of each roller.ġ2. When adjusting the size and shape of the finished pipe, it is strictly forbidden to adjust the amount too large. The upper and lower rolls of the open-hole horizontal roll stand should be able to accommodate the thickness of the strip and leave a gap, otherwise it is easy to cause steel rolling and damage the parts.ġ1. If it is not raised, all deformations will appear on the top and the pipe will be pierced down, which will increase the resistance, waste electricity and increase equipment loss.ġ0. The method of keeping the center unchanged makes the round square more smooth and reduces the resistance. When the square tube is produced by the round-to-square process, the lower shaft slider of the sizing horizontal roller and the lower sizing vertical roller should be raised according to the roll shape variable. The upper and lower adjustment nuts in the same group of horizontal roller racks should be adjusted at the same time, so that the horizontal roller shaft is always in a horizontal state to avoid jamming and forced adjustment. When the electrode is reversed, the strip retreat distance generally does not exceed 300mm.ĩ. If the nuts are loosened, the machine should be stopped immediately to eliminate the fault.Ĩ. During the operation of the roll, the tightening of the nuts before and after the horizontal roll should be monitored. The horizontal roller frame should also be scrubbed regularly according to the situation to remove the dirt, and greased on the guide rail and screw rod on the inner side of the frame.ħ. The pipe forming machine should be dismantled and cleaned regularly according to the working conditions, the vertical roller device and the stolen goods in the welding seam extrusion device should be cleaned, and an appropriate amount of grease should be applied for rust prevention and lubrication. It is forbidden to stand before and after the flying saw is in operation to avoid injury.Ħ. Before starting each time, check whether the bolts of the driving parts of the flying saw are loose and whether the mechanical parts are damaged, and deal with it in time to avoid incidents. Precautions for flying saw: pay attention to adjusting the flying saw one-way valve (the one-way valve of this machine is the air outlet throttle) so that the production speed of the flying saw trolley and the steel pipe is basically the same or slightly slower than the steel pipe speed, so that when sawing It can ensure the speed synchronization of the flying saw trolley and the steel pipe to avoid damage to the saw blade. It is easy to cause damage to gears, etc., and the loss will be greater.ĥ. Once damaged, it cannot be repaired in time. Bearing-type wearing parts should be checked. If you hear abnormal sounds, you should check the gearbox bearings in time. Pay attention to the working condition of the gearbox during work. Pay attention to frequently check the bearings of the gearbox of the steel square tube forming machine. The gear box is lubricated with gear oil with good fluidity, generally 230# gear oil (for reference only due to the difference between north and south). If abnormalities are found, the bearings should be replaced in time to avoid greater damage.Ĥ. The working environment here is harsh and the bearings are easily damaged. At the same time, pay attention to check the squeeze roller bearings. The large hexagonal nut and the upper pull plate should be adjusted at the same time to avoid that the squeeze roller is not perpendicular to the plane of the worktable, which may damage the thread of the squeeze roller. It is recommended to use a synthetic composite aluminum-based grease (SY1414-80) that can withstand high temperatures and use under humidity conditions. The temperature of the welding extrusion is too high. If the heat dissipation is not good, it will cause excessive heating and even bearing dead.ģ. Fill it once every two days, two or three times each time. Pay special attention to the high-speed lubricating grease that is relatively high-temperature resistant to the main shaft of the flying saw. Before driving, check whether the lubrication points of the steel square tube forming machine are filled with corresponding lubricants. Operators should have fixed positions, not change at will, and keep a record of shifts.Ģ. If you need to touch it during work, your hands should be placed in the direction of the pipe. Do not touch the mold during the operation of the unit. Round tube change into square tube forming machine operation guideġ.
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