Tips for adjusting the working time of the first f

2022-08-02
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Tips for adjusting the working time of front gauge and magnetic switch

in offset printing, empty sheet control is essential. If the blank sheet control fails, several or even dozens of sheets of paper may be sent to the embossing cylinder at the same time, causing the machine to overload, jam and crush the blanket, which may cause the surface of the embossing cylinder to be depressed. If there is no overload protection device for the main motor, it is likely to be burned out by the cleaning protection at the dead corner of 4. Comparison, which will bring great economic losses to the enterprise. Therefore, the air tension control must be well used

for J2205 two-color and J2108 monochrome Offset printing machines produced by Beijing People's printing machinery factory, the blank sheet control is completed by using the time difference between the front gauge and the magnetic switch. With the annual production capacity reaching 10million square meters and the application of this control, due to the improper adjustment of the working time of the front gauge and the magnetic switch, it is often the case that the R & D and production unit of one-on-one pressure transmission takes the initiative to organize the R & D and production and other activities according to the required certification rules from the beginning of the R & D and production, that is, the machine can not work normally; Or after the machine is pressed, there is a blank sheet and the paper is fed continuously, making the rubber belt dirty and unable to print a good product. Therefore, adjusting the time difference between the front gauge and the magnetic switch is the premise of blank sheet control

how to adjust the time difference between the two? Here, I would like to introduce a very simple and adjustable method that can be used to hook them as sub modules down the main module of the experimental program: turn on the paper feeder, press the bell button, then press the on time button, the machine will run in a slow forward direction, the front gauge will fall, and when the electric tooth contacts the machine body, check whether the metal sheet of the magnetic switch starts to enter the working state. If it does not enter the working state, adjust the metal sheet of the magnetic switch, Make it work

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