First of all, large size solder paste printing machine is a kind of processing machine for printing products. The main equipment of the printing production line includes solder paste printing machine, placement machine and reflow oven. Solder paste printing machine is a process equipment of SMT production line, which is responsible for printing solder paste on PCB electronic boards to prepare for the paste sequence in the second section. The printing machine is categorized into manual tin printing table, semi-automatic printing machine and automatic printing machine. What kind of tin printing machine a family chooses depends mainly on their production needs and investment capital. The solder paste has embossing machine: simple operation, fast printing speed, simple structure, the disadvantage is that the printing process parameters control points are few, printing accuracy is not high, tin yellow peeling poor, generally applicable to 0603 (inches) above the component, the pin pitch is greater than 1.27mm PCB printing process; automatic printing machine: high printing accuracy, good effect of de-tinning, the printing process is stable, applicable to the printing of the components of the spacing of the closer, the disadvantages are High maintenance costs, the operator's knowledge level is higher.

　　Solder paste printers are also widely used in the personalized product market. Many users of the popular cell phone and digital product markets are young and trendy consumers, and having their logos printed on these products is very personal. Some portable items, such as vanity mirrors, lighters, wallets, and backpacks, are also great ways for users to express their individuality. The domestic gift market has reached $9.8 billion, creating a popular trend for gifts. Print a picture of yourself or a favorite painting, icon or article on the gift, get rid of the fixed idea of the gift, and further develop the value of the gift and the originality of the giver. The main working principle is to make a printed circuit board to be printed, mounted on a press, and then manual or automatic solder paste press to apply solder paste on the printed board where there are words and images, and directly or indirectly transfer it to the motherboard in order to create the same PCB board as the printed board.