System for heating spray head in spray-painting device

Abstract

A heating system for the jet head of ink jet plotter is composed of a water storage unit able to heat the water in it, a water tube of jet head, a rotary vane pump for pumping the hot water into said water tube of jet head in order to heat jet head, a liquid level sensor, and a diaphragm pump for automatically filling water in said water storage unit.

Description

technical field [0001] The invention relates to the technical field of printing machinery, in particular to a nozzle heating system of an inkjet printer. Background technique [0002] The inkjet printer is a printing device that prints large-scale color pictures such as advertisements and posters in an inkjet manner, and has been widely used at present. When the inkjet printer is in use, its nozzle can work well at a certain temperature and print out high-quality images. Therefore, the nozzle of the inkjet printer is equipped with a nozzle heating system to make it work at an appropriate temperature. [0003] At present, the electric heating system is generally used to heat the nozzle of the inkjet printer. The system includes a heating pipe, a temperature detector, an overheat protector and a temperature control circuit board. When the system is working, the heating pipe is energized to directly heat the nozzle. When the temperature of the nozzle reaches the set temperatur...

AI Technical Summary

Problems solved by technology

[0005] First, the heating contact area is small, and the temperature of the nozzle fluctuates greatly

The electric heating system generally uses a heating tube with a diameter of 3mm. Due to the small diameter of the heating tube, the contact area between the heating tube and the nozzle to be heated is small, and a good heating effect cannot be achieved.

On the other hand, during the heating process, the temperature of the nozzle is controlled by controlling the on-off mode of the heating tube, so that the temperature of the nozzle fluctuates greatly, and the local temperature of the nozzle will be too high or too low, which will affect the quality of the printed image;

[0006] Second, there are many wirings, and the wiring is complicated

The electric heating system is adopted, and heating pipes, temperature detectors, overheating protectors, etc. must be installed on each nozzle, and each component has wiring leads. When there are many nozzles, there are too many leads on the nozzles, and the wiring is complicated;

[0007] Third, the electric heating system is expensive, and the cost of the inkjet printer using this system is too high

Because components such as heating tubes are installed on each nozzle, the number of components in the inkjet printer increases, especially the heating tube, which is very expensive, making the cost of the inkjet printer too high;

[0008] Fourth, it is easy to generate interference and the system failure rate is high

Due to the excessive wiring of the electric heating system, and the heating tube adopts alternating current, electromagnetic interference is virtually increased, resulting in an increase in the system failure rate

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