Many customers do not know how to choose whether to buy semi-automatic printing machine or full-automatic solder paste printing machine. In the process of solder paste printing, if you want to obtain high-quality printing products, you must rely on solder paste printing machine. There are two main types of solder paste printing machines we can buy now: fully automatic and semi-automatic. Each type of solder paste printer has its own brand and classification, and different solder paste printers also have different functional levels. Now let's analyze how to select full-automatic and semi-automatic solder paste printing machines, and what are the differences.

Choose to buy a semi-automatic or full-automatic solder paste printer. Printing is actually a process based on hydrodynamics. It can adhere to it repeatedly and apply a certain amount of materials (solder paste or adhesive) to the surface of PCB. Generally speaking, printing is a very simple process. The PCB and the steel plate or wire mesh adhere to a certain interval or completely touch. Under the action of the scraper, the material will flow through the surface of the steel plate or wire mesh and fill the incision on it, so that the material will stick to the surface of the PCB, and then separate the PCB from the wire mesh or wire mesh, Thus, the picture of material composition is left on the PCB. In the process of solder paste printing, the substrate is placed on the worktable and clamped and positioned by machinery or vacuum.

In the manual or semi-automatic solder paste printing machine, the solder paste is placed on the steel plate or wire net by technology. At this time, the printing scraper is at the other end of the template. In the automatic solder paste printing machine, the solder paste is distributed automatically. Semi automatic solder paste printing machine is a widely used printing equipment. In practice, it is similar to craft printing machine. The difference between semi-automatic solder paste printing machine and manual printing machine mainly lies in the development of printing head. The semi-automatic solder paste printing machine can better control the speed, the pressure of the scraper and the angle of the scraper. The semi-automatic solder paste printing machine is more perfect than the manual printing machine in terms of output value and quality. Now most electronic product manufacturers in the market choose automatic or full-automatic solder paste printing machines to produce SMT products. The difference between full-automatic and semi-automatic solder paste printing machine mainly lies in the positioning of PCB. Using visual system to replace manual positioning can reduce errors.

Experts remind us that no matter how to use or choose full-automatic or semi-automatic solder paste printing machine, we should be clear that most of the shortcomings in welding printing have no direct connection with the printing process. These shortcomings are likely to occur in the assembly process of solder paste printer, so it is necessary to recheck whether the PCB is standard and whether the template planning is reasonable.