What are the applications of magnetic drive micro pump in the inkjet printing industry?

The application industry of inkjet printers is very wide. Most of the various products and daily necessities we see in supermarkets use inkjet printers, which are mainly used to realize the automatic identification of some information content, including conventional content such as production date, expiration date, batch number, and some variable content such as barcodes and QR codes.

Common industries include pipe industry, food and beverage industry, fast-moving consumer goods industry, pharmaceutical industry, health care products industry, wire and cable industry, PCB circuit board industry, mobile phone parts industry, electronic components, etc.

The core of any printing technology must have a stable ink supply and high-precision delivery to ensure stable printing quality. WSF precision micro gear pumps can provide a series of pump solutions for the paint and ink market, which can provide non-pulsating pressure and high-precision delivery for various dye- and pigment-based inks and coatings.

The principle of inkjet coding application: Under the pressure of the micro gear pump, the ink flows from the ink tank through the ink pipeline, adjusts the pressure and viscosity, and enters the spray gun. As the pressure continues, the ink is ejected from the nozzle. When the ink passes through the nozzle, it is broken into a series of continuous ink drops with equal spacing and the same size by the action of the piezoelectric crystal. The ejected ink flow continues to move downward and passes through the charging electrode to be charged. In the charging electrode, the ink droplets are separated from the ink line. A certain voltage is applied to the charging electrode. When the ink droplets are separated from the conductive ink line, they will instantly carry a negative charge that is proportional to the voltage applied to the charging electrode. By changing the voltage frequency of the charging electrode to make it the same as the frequency of ink droplet breakage, each ink droplet can be charged with a predetermined negative charge. Under the continuous pressure, the ink flow continues to move downward and passes through the middle of two deflection plates with positive and negative voltages respectively. When the charged ink droplets pass through the deflection plate, they will be deflected. The degree of deflection depends on the amount of charge they carry. The uncharged ink droplets will not be deflected, and they will fly downward all the time, flow into the recovery pipe, and finally return to the ink tank through the recovery pipe for recycling. The charged and deflected ink droplets fall at a certain speed and angle onto the object passing in front of the vertical nozzle, forming the required various texts, patterns and other logos at different positions on the product surface.

When the pump is operating normally, a certain pressure must be guaranteed, and the pressure needs to be stable and pulse-free to pump all types of dye and solvent inks, with precise performance electronic control; these features make WSF precision micro gear pumps the first choice for continuous inkjet printers.

The installation size adopts a compact design. The unique compact size saves installation space, and the simple manifold or push-in connection port makes installation fast and cost-effective.

Operational advantages: The manufacturing tolerance of PEEK gears is in the micron range, with low power consumption, low temperature rise and volumetric efficiency with long solvent replenishment intervals. The design of bearings and gears minimizes contact loads and maximizes contact surfaces, so the service life of the pump can reach tens of thousands of hours.