A kind of ink height detection method and automatic ink adding control device

Abstract

The invention relates to an ink height detecting method and an automatic ink adding device. The method includes the steps that signal collection is performed on reflected ultrasonic signals, and the signals are processed to remove disturbing interference values to obtain a measuring value of ink height. The device comprises a total controller, an ink adding pump control valve and an ink height detecting unit, wherein the ink pump control valve and the ink height detecting unit are respectively connected with the total controller. The total controller comprises a micro processor, an RS485 interface, a human-computer interface, a self-adaption Ethernet output module and a multi-path digital analog converter, the RS485 interface, the human-computer interface, the self-adaption Ethernet output module and the multi-path digital analog converter are respectively connected with the micro processor in a communication mode, the ink height detecting unit is connected with the micro processor through the RS485 interface in a communication mode, and the ink adding pump control valve is connected with the micro processor through the multi-path digital analog converter in a communication mode. The automatic ink adding device has the advantages of adding ink automatically, and interference caused by an ink stirring device is eliminated, and the ink height is measured more accurately.

Description

technical field [0001] The invention relates to a printing machine, in particular to an ink height detection method and an automatic ink filling control device. Background technique [0002] Commercial printing machines used for mass printing are mostly equipped with an ink storage hopper for storing ink due to ink consumption. When the ink in the ink tank of the printing machine drops to a certain position, ink needs to be added to the ink storage hopper. At present, the ink filling of general commercial printing machines is manually observed and ink is added manually, so that the ink surface in the ink tank below the ink roller is kept at a certain height. And because the ink is easy to dry in the air, adding too much at one time will cause unnecessary waste, which requires manual observation of the remaining ink amount in each ink fountain from time to time, adding in time, which increases the labor intensity of the workman. At present, high-end commercial printing machi...

AI Technical Summary

Problems solved by technology

And because the ink is easy to dry in the air, adding too much at one time will cause unnecessary waste, which requires manual observation of the remaining ink in each ink fountain from time to time, and timely addition, which increases the labor intensity of the workers

At present, high-end commercial printing machines generally use a pneumatic ink pump to add ink, but the ink pump is manually controlled, and it is still necessary to manually observe the ink consumption in the ink tank to control the work of the ink pump

[0003] In order to realize the automatic addition of ink, the problem of ink height detection must be solved, and the ink has the characteristics of viscous and opaque, and the general contact sensor is not suitable

Images