Maintenance of the entrance cleaning machine of th

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Maintenance of the entrance cleaning machine of the glass coating production line since entering the 21st century, with the implementation of the national energy-saving policy and the gradual popularity of the concept of energy conservation, the domestic production of coated glass for construction has increased sharply. Under this situation, our enterprise imported a large-scale off-line magnetron sputtering coating production line from Germany vonardene in 2003, which is specialized in the production of coated glass for buildings with energy-saving and beautiful characteristics. This coating production line adopts the high-level horizontal glass cleaning machine of German Benteler company. It has the advantages of reasonable structure, accurate control, excellent performance and simple operation. Since it was put into production, it has better met our production needs. As the key equipment of the coating production line, the inlet cleaning machine is responsible for polishing, cleaning, drying and other surface treatment of the coated glass original sheet, so as to make the original sheet clean without pollution, dust and ions, so that the film can be firmly attached to the glass original sheet. If the inlet cleaning machine does not work normally, the coated glass produced by the coating production line will produce visual defects such as spots and pinholes, and physical defects such as weak film adhesion

however, due to long-term use, the cleaning opportunity is polluted and worn, and will gradually lose its effectiveness. Therefore, we should maintain the cleaning machine according to the normal procedure within a certain period to restore its function and function. Generally, the maintenance of the cleaning machine needs to pay attention to the following six aspects, namely, the lubrication of the cleaning machine, the calibration of the conveying roller table, the adjustment of the height of the disc brush, the cleaning of the water storage tank and the water receiving disc, the smoothness and ventilation of the polishing agent and water spray pipe. At this time, the experimental force will not increase the cleaning and adjustment of the knife drying area

lubrication of cleaning machine

in order to prevent gear necrosis caused by excessive wear of the wear machine, the cleaning machine must be properly lubricated. The glass coating process requires a very high degree of cleanliness of the glass, and a small amount of lubricating oil is not allowed to enter the cleaning area, so grease with good mechanical stability and adhesion should be selected. The disc brush of Benteler cleaning machine adopts reciprocating rotation, wheel coupling, no bearing, and no lubrication. At the same time, water lubricated and single-sided sealed bearings are used at both ends of the conveying roller, which can effectively avoid pollution. We focus on the lubrication of transmission chains, helical gears and transmission shafts

① use plastic cloth to separate the parts that need lubrication from the cleaning area. Do not selectively perform the specification to avoid grease pollution

② lubricate the joint surface of chain, gear, transmission shaft, chain roller and chain plate

③ the transmission chain and roller table should be lubricated evenly

④ wipe off the excess grease with a clean cotton cloth

calibration of conveying roller table

the cleaning machine adopts the method of clamping glass. The lower roller table is fixed, and the height of the upper roller table can be adjusted to ensure the uniformity of glass stress and the stability of transmission. The lower roller table is driven by the transmission shaft and gear system. It is necessary to regularly check the bearing and horizontal and longitudinal levels. The upper roller table is fixed by two water lubricated plastic bearings at both ends, ranking first in the world, and can rotate freely. The plastic bearing is easy to wear and increase the clearance after being used for a period of time, which leads to the imbalance at both ends of the upper roller table, making the glass original sheet easy to form deflection in the cleaning machine. For the upper roller table, we add fixed end block clamps and regularly measure the height changes, and calibrate or replace the bearings accordingly to adjust the pressing force of the roller

adjustment of disc brush height

the inlet cleaning machine mainly cleans the surface of the original glass sheet through three rows of 132 disc brushes, and adds liquid polishing agent at the same time, so as to ensure that the glass surface can be effectively polished and remove stubborn stains. In order to make the disk brush form an effective rolling friction on the glass surface, the height of the disk brush tip is generally set 1 below the surface of the glass sheet. 5 mm. With the wear of the disc bristles, the height of the disc brush needs to be reduced regularly to ensure the cleaning quality

cleaning of water storage tank and water receiving tray

the inlet cleaning machine adopts the method of three-level water quality step-by-step cleaning and recycling. Five water tanks and corresponding water receiving trays are respectively set at the lower part of the conveyor table to store cleaning water. Because the water itself is polluted while cleaning the glass, some dirt such as polishing agent will usually be gradually deposited in the water storage tank, which needs to be washed and cleaned regularly to ensure the cleanness of water quality

smoothness of polishing agent and water spray pipe

the inlet cleaning machine uses the oxide aqueous solution of aluminum or cerium as the polishing agent, which is added to the rolling process of the disc brush through the water spray pipe between the upper roller table. Due to the use of solid aqueous polishing agent, when the concentration is too high, it is easy to cause nozzle blockage. When the nozzle of polishing agent is blocked during use, it should be dredged in time and the concentration of the diluted polishing agent should be adjusted. To clean the polishing agent and water spray pipe, follow the following steps

① remove the washer baffle, raise the upper roller table of the washer, and turn off the power supply and water supply valve

② loosen the fixing bolts at both ends of the nozzle and remove the nozzle

③ use a high-pressure water gun to inject pure water into the nozzle from the inlet of the nozzle to form water pressure, observe the water outflow of each nozzle, and dredge it with a paper clip

④ clean the nozzle, install it back, tighten the bolts, and note that the nozzle direction remains unchanged before disassembly and cleaning

cleaning and adjustment of the drying area of the air knife

the last market competitiveness of the cleaning machine is further improved. The water tank is filled with high-purity water that has been heated (at a temperature of about 45 ℃), so the water stains attached to the surface of the glass original can be blown away and evaporated under the high and strong wind of the air knife after entering the drying area. There is an acute angle between the blade of the air knife and the plane of the original glass. Each time the air knife is disassembled or its position is changed, pay attention to measure its angle and keep it unchanged

① clean the glass debris, labels, paper clips and other dirt in the drying area, and wipe the air knife, roller table and other parts with clean cotton cloth to ensure cleanliness

② remove the primary filter plate and secondary filter bag for the fan, blow out the dust inside with compressed air in reverse direction, check whether there is damage or blockage, and replace them regularly

③ probe into the air knife edge with a saw blade and check whether there are sundries such as filter bag fibers blocking the knife edge

through the production practice in recent years, we realize that as long as the inlet cleaning machine is maintained and maintained regularly and carefully according to the above procedures, the cleaning effect of the glass original sheet can be guaranteed to a large extent and the quality of the coated glass products can be guaranteed under the normal process

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