Introduction and sharing of printing elements of automatic screen printing machine

Introduction and sharing of printing elements of automatic screen printing machine

The screen printing process of the automatic screen printing machine is that the ink passes through part of the mesh of the screen and then leaks on the substrate, while the rest of the mesh of the screen is blocked and the ink cannot penetrate. The ink is poured on the screen during printing, and the ink will not leak through the mesh to the substrate without external force, but when the scraper scrapes the ink with a certain pressure and a skewed angle, it will transfer through the screen To the following substrate to complete the imitation of the image.

Introduction and sharing of printing elements of automatic screen printing machine

Printing elements of automatic screen printing machine:

1. Screen printing plate

Three methods can be used to make the screen of the screen printing machine: direct coating method, direct film pasting method, and indirect film pasting method. According to the type of substrate, important parameters such as screen tension, screen mesh, plate film thickness, and screen frame size should be fully considered in the plate making process. Choose water-based or oil-based photosensitive glue according to the type of ink.

2. Screen printing ink

Screen printing machines can use solvent-based screen printing inks, UV screen printing inks and various functional pastes. Screen printing inks should be selected and tested according to the raw materials of the substrate.

Introduction and sharing of printing elements of active screen printing machine

3. Screen printing squeegee

The screen printing squeegee is the pressure source of the screen printing machine, which plays the role of transferring and leaking ink. Flat substrates generally use a squeegee with a rectangular cross section, and curved substrates generally use a squeegee with a triangular cross section. For CD discs, special squeegees can be considered. Soft squeegee is used for rough surfaces, and hard squeegee is used for smooth surfaces. Squeegee.

4. Fixtures

It is necessary to make a jig with good stability and good identity to ensure the accuracy of overprinting and the consistency of position. The tangent plane of the highest point of the plane fixture is parallel to the screen plane, and the curved surface fixture requires that the diameter of the transmission gear index circle at the shaft end is equal to the diameter of the circular surface of the substrate.

Introduction of printing elements of active screen printing machine