• The pad printer mainly transfers the pattern or text etched on the steel plate to the surface of the object (such as a safety helmet, helmet, etc.) through the rubber head. First, the ink supply system of the oil cup supplies ink to the etched steel plate, and the printing head moves up and down independently to dip the ink pattern on the steel plate, and then the rubber head transfers the ink to the workpiece. For four-color pad printing, by repeating this process many times, different colors of steel plates and rubber heads are used to complete the transfer of multi-color patterns.
Structural features
• Three-axis servo mechanism: It can accurately control the movement of the rubber head in three-dimensional space (X, Y, Z axis). The position of the rubber head to the steel plate and the workpiece can be accurately positioned in the X-axis and Y-axis directions to ensure that the rubber head accurately dips the ink and transfers. The Z-axis direction controls the up and down movement of the rubber head to achieve precise ink dipping and printing. For example, when printing on the curved surface of a safety helmet, the position and height of the rubber head can be flexibly adjusted through the three-axis servo mechanism to adapt to the curvature of different parts of the safety helmet to achieve precise printing.
• Shuttle table: The shuttle table allows the workpieces to be printed to be quickly fed in and out of the printing area. It can improve work efficiency, for example, while one workpiece is being printed, the next workpiece can be placed on the other side of the table. And the movement of the shuttle table is also very precise, ensuring that the workpiece enters the printing position accurately every time.
• Touch screen control panel: Provides an intuitive operation interface for users to set printing parameters. You can adjust many parameters such as the speed of the rubber head movement, printing pressure, and ink supply. Users can flexibly set it according to different printing requirements (such as helmets of different materials and different pattern complexity) through simple touch operations.
• Independent up and down print heads: Each print head can move up and down independently, so that when performing multi-color printing, the ink dipping and printing actions of each print head can be controlled separately. It helps to accurately adjust the position and pressure of the print head according to the characteristics of different color inks and pattern requirements, and improve the printing quality.
• Ink cup ink supply system: The ink cup can stably supply ink to the steel plate and can better control the amount of ink. Compared with the traditional ink supply method, it can reduce ink waste while ensuring the uniformity of ink supply, making the amount of ink dipped into the pad more stable each time, which helps to print a pattern with uniform color.
• Automatic pad cleaning: During the printing process or after the printing is completed, the automatic pad cleaning function can promptly remove the ink remaining on the pad to prevent the ink from drying and affecting the performance of the pad and the subsequent printing quality. This function improves the service life of the pad and the stability of printing.
Pad printing machines with shuttle tables can only print one product at a time, and the printing efficiency is low. The initial shuttle table was controlled by the cylinder , switching back and forth between different printing positions, and the accuracy was not high. As users have higher requirements for product printing quality, shuttle tables are increasingly controlled by servo motors. The shuttle controlled by servo motors The docking position can also be set at will.
Many products have complex shapes and require different graphics and text to be printed on different parts. Some require the same color, and some require different colors. If servo fixture is installed on the workbench that can perform three-dimensional movements - (left and right, up and down, rotation movements), a shuttle pad printing machine will be able to meet the requirements and minimize the purchase cost.
Shuttle pad printing machines with this structure usually execute instructions by a variable program controller, and set different parameters according to the printing requirements of the product, so that 6 prints of the same color or different colors can be printed on different parts of a product.
4 colors pad printer with shuttle//Structure
Feeding
Manual
Initial position
Limited switch
Working table
4-station shuttle-type working table
Shuttle stroke
200mm
Ink supply system
140mm diameter Closed cup type system
Plate type and size
0.3mm Thin steel sheets plate.
Pad dropping control
Simple-cylinder , Continue pressing
Ink drying
Heat air
Blanking
Manual
4 colors pad printer//Usage and characters
Guide
Configure shuttle table, servo motor drive, high precision, can be up and down, back and forth, left and right to adjust the angle of rotation.
Shuttle stroke 200m, for the dimensions of 250 × 300mm printing products, the relative position between the respective printing colors can be flexibly adjusted.
Oil cup for ink, ink saving more ink suitable stability, better environmental protection; 86% reduction in solvent evaporation, ink save 25% more business through the ISO14001 environmental management system certification;
Automatic pad cleaning device in the pad printing process, plastic head surface residual ink can be self-cleaning, to avoid the influence of the first printing. Effectively improve the print quality;
Independent oil cup propelling mechanism, wiper cleaner, safety design, ensure the operation more humane, scraping scraping under pressure to ensure a clean minimal, maximize oil cup and plate life;
Thin and thick sheets double structure design, the user can choose according to their needs.
Plastic cylinder head and the platen is controlled by a separate printing color between the mutual non-interference; can achieve multicolor printing large objects, tune more convenient;
Application︰
The shuttle pad printer is one of the most important types of pad printers. It is equipped with a mobile workbench that can shuttle and change in different printing positions, which can achieve accurate color registration. The earliest shuttle workbench was controlled by a cylinder, with low positioning accuracy and limited printing functions. It is generally only suitable for multi-color pad printing at the same position of the same product, and its production efficiency is severely restricted. With the increase in labor costs and the continuous improvement of pad printing machine functions, the shuttle workbench is upgraded, and the servo motor control is used to greatly improve the position accuracy of the shuttle workbench. At the same time, the shuttle workbench can also be installed with a servo device that can adjust horizontally, vertically, and angles in multiple dimensions to achieve one-time complex pad printing of products in multiple directions, angles, and colors. This type of pad printer usually analyzes the pad printing position and characteristics of the product, and finely sets various parameters and controls them under computer control, so as to achieve the purpose of fully pad printing a product with one machine, greatly improving production efficiency, which is equivalent to the automatic combination of multiple single-color pad printers. Servo shuttle pad printers have been widely used in the printing fields of household appliances, electronics, auto parts, telecommunication products, toys, hardware paper products, plastic products, gifts, crafts and stationery products.
