This machine is widely used in screen printing of PET, PVC, transfer paper, film, flexible circuit board, mobile phone buttons, membrane switch, non-woven fabric, trademark, self-adhesive label, aluminum foil, copper foil and other reel materials. . With touch screen, easy to operate; computer control, fully automatic electric eye alignment, repeat positioning accuracy. The secondary positioning adopts photoelectric tracking, which can be repeatedly positioned repeatedly, and the color is accurate, which can improve the printing quality; can connect various peripheral equipment, rewinding machine, cutting machine, UV dryer, die cutting machine, etc.; automatic weighing device , printing object spacing 1-0.5 (mm) to save materials. At the same time, the protection screen will not be broken by the knife. This article will introduce you to the automatic screen printing machine.
Screen printing machines are prone to failure when printing, some are unilateral reasons, but more are complicated reasons, so the operator of the flat screen printing machine should pay special attention to the cause of the failure, so as to take corresponding countermeasures.
1. Blocking, that is, the part of the image with mesh can not transfer ink during printing. This phenomenon will affect the printing quality. In severe cases, normal printing will not be possible.
The solution adopted is as follows: change the printing material that is not easy to drop powder, reduce the viscosity of the ink, thereby avoiding blocking. When selecting the ink, the weather influence should be considered, the viscosity of the ink should be appropriately reduced, and the fluidity of the ink should be improved.
2. The ink does not adhere to the substrate of the flat screen printing machine
Solution: Regularly clean the flat screen printing machine to remove oil and dust, corona and plasma on the surface of non-polar products, improve the adhesion of the ink on the surface of the screen printing machine, and replace the ink with high viscosity, when appropriate. You can add new ink.
3. Ink film edge defects, when printed with a flat screen printing machine, the edge of the saw is broken, the general quality of the screen printing plate, the edge should be smooth.
The thickness of the flat screen printing mechanism plate can be ensured by selecting a high-mesh screen and a high-resolution photosensitive material to reduce the occurrence of defects.
The screen printing machine adopts high-order PLC intelligent sensor and touch screen human-machine interface to construct the control system; the material length is pulled by the servo motor, and the intelligent sensor feedback controls the servo motor to automatically compensate to ensure the printing precision; the printing platform has the vacuum adsorption and the return air blowing and pulling mechanism. The printing blade adopts constant pressure device to ensure the printing pressure is balanced; the frame is pneumatically locked and mechanically combined, and the replacement is fast and stable.
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