Automatic cup UV-LED screen printing machine

       The fully automatic cup UV LED vertical turntable screen printing machine is a highly efficient automated equipment specially used for cup printing. The following is its related introduction:

Equipment structure

• Vertical turntable system: driven by a motor, it can realize the smooth conversion of cups between various stations. Its vertical design saves space and is conducive to improving printing speed and production efficiency. Depending on the size of the cup diameter, the number of stations of the turntable can be 4-6-8-10.

• Screen printing system: including screen printing plate, scraper and ink return knife and other components. The mesh holes of the graphic part on the printing plate can pass the ink, while the non-graphic part cannot. The scraper scrapes the ink from the printing plate to the surface of the cup, and the ink return knife scrapes the excess ink back to the ink tank.

• UV LED curing system: equipped with UV LED lamp beads, which generate ultraviolet rays of a specific wavelength to make the UV ink dry and cure instantly. It has a fast curing speed, low energy consumption, and is environmentally friendly and does not contain harmful substances such as mercury.

• Loading and unloading system: The loading system generally uses a conveyor belt to automatically and orderly transport the cups to the printing station of the turntable; the unloading system can automatically collect the printed cups to achieve fully automated production and improve production efficiency.

• Control system: Using PLC and other control technologies, it accurately controls parameters such as printing speed, UV LED curing time, and turntable rotation. It also has functions such as fault diagnosis and alarm prompts to ensure stable operation of the equipment.

Workflow

• Loading: The conveyor belt transports the cup to the positioning fixture on the turntable, and the cup is accurately fixed by a robotic arm or pneumatic device to prevent displacement during printing.

• Pre-printing treatment: Some equipment is equipped with corona treatment or flame treatment devices to treat the surface of the cup to improve the adhesion of the ink on the surface of the cup and ensure the printing quality.

• Screen printing: The turntable drives the cup to pass through the printing station in turn, and the scraper moves on the screen printing plate to squeeze the ink onto the surface of the cup to form the required pattern or text. The equipment can adjust the distance between the printing plate and the cup, the scraper pressure and other parameters according to the shape, size and printing requirements of the cup to ensure the printing quality.

• UV LED curing: The printed cup immediately enters the UV LED curing area. Under ultraviolet light, the ink dries and solidifies quickly. The curing time usually takes only a few seconds to more than ten seconds. The cured ink has good wear resistance, corrosion resistance and gloss.

• Unloading: The cured cups are automatically collected or transported to the next process through the unloading device. The unloading device can realize the stacking and counting functions of the cups, which is convenient for subsequent packaging and transportation.

Performance advantages

• High efficiency: It can automatically complete a series of processes such as loading, printing, curing, and unloading without manual intervention. Thousands of cups can be printed per hour, which greatly improves production efficiency and reduces labor costs.

• High printing quality: UV LED curing makes the ink dry instantly, adhere firmly, have bright colors, high saturation, clear and delicate patterns, and can achieve high-precision multi-color printing to meet the printing needs of various complex patterns and fine texts.

• Environmental protection and energy saving: UV ink is used, no volatile organic compound emissions, harmless to the environment and the health of operators; UV LED lamps have low energy consumption and are more energy-saving and environmentally friendly than traditional mercury lamp curing methods.

• Wide range of applications: It can be printed on cups of various materials, such as plastic, ceramic, glass, etc., and can also adapt to cups of different shapes and sizes to meet diverse market needs.

• Strong equipment stability: The equipment has a reasonable structure, precise parts, stable control system, few faults during operation, and can operate stably for a long time, ensuring the consistency of product quality.