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1. Structural features

• Large ink tray: can hold enough ink and reduce the frequency of ink replenishment. Its size design is suitable for the needs of two-color printing, ensuring that there is enough supply area for both colors of ink, and the large ink tray helps to maintain the stability of the ink and reduce the phenomenon of ink drying and precipitation.

• Touch screen operation: The operation interface is intuitive and friendly, and various parameters can be easily set through the touch screen. For example, the printing speed, printing pressure, movement speed and stroke of the shuttle workbench can be accurately set. Fault diagnosis, parameter storage and call can also be performed on the touch screen, which can easily and quickly switch between different printing tasks.

• Two-color printing system: It has two independent printing devices for printing two colors. These two sets of devices can be independently adjusted in terms of position, pressure, ink supply, etc. to achieve accurate two-color overprinting. Usually there is a high-precision positioning system to ensure that the two-color patterns can be accurately superimposed on each other, presenting a beautiful two-color printing effect.

• Servo drive system: The servo motor is used to drive key components such as the pad printing head and the shuttle workbench. The advantage of servo drive is that it can provide high-precision position control and speed control. For the movement of the pad printing head, it can accurately control the position of the pad printing head's descent, ink dipping, printing and rise, ensuring the clarity and accuracy of the printed pattern. For the shuttle workbench, it can accurately control its fast and smooth movement between two stations.

• Shuttle workbench: The workbench is designed as a shuttle type, which can move quickly between two printing stations. This design can improve printing efficiency. When ceramic tableware such as bowls and basins on one station are being printed in one color, another station can perform preparation work, such as placing new tableware or cleaning printed tableware, to achieve alternating printing and effectively reduce downtime.

2. Working principle

• First, the shuttle workbench moves the ceramic tableware (bowls, basins, etc.) to the first printing station. The pad printing head descends under the servo drive, dips the ink of the first color, and then the pad printing head again accurately prints the dipped ink pattern on the ceramic tableware under the servo drive. Next, the shuttle workbench moves the tableware to the second printing station, and the pad printing head dips the second color of ink and prints it. The precise positioning system ensures that the two colors of the pattern are accurately overprinted to complete the two-color printing. During the whole process, the touch screen operation interface can monitor and adjust the parameters of each link in real time to ensure the printing quality.

3. Scope of application

• Mainly suitable for two-color pad printing of ceramic tableware, including ceramic products of various shapes and sizes such as bowls and basins. This pad printing machine can print exquisite patterns, trademarks, decorative patterns, etc., to meet the aesthetic requirements of ceramic tableware. It is widely used in tableware production plants, ceramic handicraft factories, etc. to enhance the added value of ceramic products.

4. Operation process

• Preparation: Add two colors of ink to the large-size ink tray respectively, and check whether the fluidity and viscosity of the ink meet the requirements. Turn on the equipment and check the operating status of each part of the equipment through the touch screen operation interface, such as whether the servo motor, pad printing head, shuttle workbench, etc. are working normally. Place the ceramic tableware (bowls, basins, etc.) at the starting position of the shuttle workbench.

• Parameter setting: Set the printing speed, printing pressure, pad head stroke, shuttle table movement speed and stroke and other parameters on the touch screen. Set and adjust the overprint accuracy of two-color printing according to the size, shape and printing pattern requirements of the ceramic tableware.

• Printing operation: Start the equipment, the shuttle table moves the ceramic tableware to the first printing station, and the pad head dips ink and prints the first color according to the set parameters. After completion, the shuttle table moves to the second printing station, the pad head dips ink and prints the second color to complete the two-color printing. During the printing process, the operator can observe the equipment operation status and printing effect in real time through the touch screen, and can adjust the parameters at any time if necessary.

• Completion and follow-up work: After printing is completed, remove the printed ceramic tableware from the shuttle table. Turn off the equipment, clean the ink tray and pad head, and do daily maintenance of the equipment.

5. Maintenance

• Ink tray maintenance: Clean the ink tray regularly to prevent ink from drying and impurities from mixing. When changing ink, thoroughly clean the ink tray to ensure the quality of the new ink.

• Touch screen maintenance: Keep the touch screen clean and avoid contamination such as oil and dust. If the touch screen fails, repair it according to the equipment maintenance manual or contact professional maintenance personnel.

• Printing system maintenance: Regularly check the wear of the pad printing head and replace the worn pad printing head in time. For the two sets of devices for two-color printing, check their accuracy separately, such as the accuracy of printing pressure and the stability of ink supply.

• Servo drive system maintenance: Keep the servo motor clean to prevent dust and foreign matter from entering. Regularly check the motor's connection wires and encoders to ensure normal signal transmission. If the servo drive fails, troubleshoot and repair it according to the fault code.

• Shuttle table maintenance: Check the wear of the guide rails and sliders of the table and lubricate them in time. Check whether the transmission mechanism of the table, such as belts and chains, is loose or worn to ensure that the table can shuttle quickly and smoothly.