Two colours pad printer With servo workbench

High-quality shuttle pad printing machine:

Worktable shuttle servo control

• Working principle: The servo motor drives the worktable to perform precise shuttle motion in the horizontal direction. The servo system can accurately control the moving speed, displacement distance and start and stop position of the worktable according to the preset program and parameters. For example, during the pad printing process, the worktable carrying the product can be quickly and accurately moved from the initial position to the bottom of the print head for printing operations, and then shuttled to other stations, such as drying stations or unloading stations, after completion.

• Advantages: It provides extremely high positioning accuracy, usually reaching a millimeter or even smaller error range, ensuring that the relative position of the product and the print head is highly consistent each time it is printed. This is crucial for operations that require repeated multi-color printing or high-precision pattern printing, which can effectively reduce overprint errors and improve the stability of printing quality. At the same time, the flexibility of servo control allows the shuttle speed of the worktable to be adjusted according to the production needs of different products, optimizing production efficiency.

The worktable can be adjusted up and down

• Functional features: The position adjustment of the worktable in the vertical direction is achieved through specific mechanical structures, such as screw nut mechanisms or hydraulic lifting devices. The operator can precisely adjust the height of the workbench according to the product's height, shape and printing process requirements to keep the product surface and the print head at the best printing distance.

• Advantages: Enhanced adaptability of pad printers to products of different specifications. Whether it is a tall three-dimensional product or a flat object, the printing needs can be met by adjusting the workbench height. The appropriate printing distance helps to control the pressure exerted by the print head on the product, ensuring that the ink is evenly transferred to the product surface, thereby obtaining a clear and complete printing pattern, while avoiding print head wear or product damage due to improper distance.

Two-color oil basin ink supply structure

• Working method: Equipped with two independent oil basins, each containing ink of different colors. Each oil basin has a corresponding ink supply system, which evenly distributes the ink on the surface of the oil basin through a scraper or other ink adjustment device so that the print head can dip the appropriate amount of ink. In the two-color printing process, the print head can first dip the first color of ink in one oil basin and print it on the product, and then after a cleaning or ink switching procedure, dip the second color of ink in another oil basin for secondary printing.

• Advantages: It realizes the function of two-color printing and can accurately control the supply of two colors of ink. The independent oil basin design can effectively avoid the mutual contamination of the two colors of ink, ensuring the purity and color consistency of the ink every time the ink is dipped. The operator can flexibly adjust the parameters such as the amount of ink and ink viscosity in each oil basin according to the design requirements of the printing pattern to meet the needs of different color effects and printing quality, expanding the application range of the pad printer.

Independent cylinder control of two-color print heads

• Control principle: Each print head is equipped with an independent cylinder to control its movement. Under the synergy of the air system and the control system, the cylinder can accurately control the lifting, pressure and printing stroke of the print head. During two-color printing, the cylinders of the two print heads can work independently according to the preset program and timing to achieve accurate printing of different color patterns.

• Advantages: Improve the accuracy and flexibility of two-color printing. Since the movement of each print head can be independently controlled, the pressure, speed and other parameters of the print head can be adjusted according to the characteristics and requirements of different color patterns. For example, for patterns with thinner lines and lighter colors, the print head pressure and speed can be appropriately reduced to ensure the clarity and color uniformity of the pattern; while for patterns with large areas and darker colors, the print head pressure can be increased to ensure that the ink is fully transferred. This independent control method helps to optimize the effect of two-color printing and reduce problems such as color deviation and pattern deformation.

Touch screen operation

• Operation interface function: As the core component of human-computer interaction, the touch screen provides an intuitive and convenient operation interface. Operators can set various parameters through the touch screen, such as the shuttle speed of the workbench, the height of the print head, the ink supply parameters, the number of prints, the printing cycle, etc. At the same time, the touch screen can also display the current working status of the pad printer, including the equipment operation mode, the working position of each component, whether there is a fault alarm and other information. In addition, some advanced touch screen operation interfaces also support multi-language switching, user authority management, and data storage and call functions.

• Advantages: Greatly simplifies the operation process and reduces the learning cost and work intensity of operators. Compared with the traditional mechanical button and knob operation mode, the touch screen operation is more intuitive and flexible. The operator can quickly and accurately adjust the various parameters of the pad printer to meet the printing needs of different products. Moreover, the rich information displayed on the touch screen helps the operator to monitor the operation of the equipment in real time, find and handle faults in time, and improve production efficiency and equipment reliability.

Safety protection door

• Safety protection function: The safety protection door is usually made of metal and installed around the operating area of ​​the pad printer to form a closed or semi-closed protective space. The protective door is equipped with a safety interlock device. When the protective door is opened, the power system of the pad printer will automatically stop working or fail to start to prevent the operator from contacting the moving parts during the operation of the equipment and causing danger. The pad printer can only operate normally when the protective door is closed and locked.

• Advantages: It ensures the personal safety of the operator and meets the standards and requirements of safe production. During the operation of the pad printer, the movement speed of the printing head, workbench and other parts is relatively fast. If there is no safety protection door, the operator may cause serious injury accidents if they misoperate or accidentally contact these parts. The setting of the safety protection door effectively avoids this risk, creates a safe working environment for operators, and also helps enterprises avoid economic losses and legal liabilities caused by safety accidents.

Self-balancing scraper technology

• Technical principle: The self-balancing scraper system adopts a special mechanical structure or sensor feedback control mechanism, which can automatically sense the pressure distribution of the scraper in the ink basin, and adjust the angle, position or pressure of the scraper in real time, so that the scraper maintains uniform contact with the bottom of the ink basin along the entire length. During the ink distribution process, the scraper can evenly scrape the ink on the surface of the oil basin or the print head to ensure that the amount of ink dipped by the print head is uniform each time.

• Advantages: It plays an important role in improving printing quality. Uniform ink supply is one of the key factors in obtaining high-quality printed patterns. If the scraper cannot work in a balanced manner, it may cause uneven distribution of ink on the surface of the oil basin or the print head, resulting in uneven color depth and uneven line thickness of the printed pattern. Self-balancing scraper technology effectively solves this problem, ensures the stability and consistency of ink supply, and thus improves the clarity, color vividness and overall quality uniformity of the printed pattern.

This high-quality shuttle pad printer has the remarkable characteristics of high precision, high efficiency, multi-function and high safety through the organic combination and coordinated work of the above-mentioned parts. It can be widely used in product surface printing operations in many industries such as electronics, plastics, hardware, stationery, etc., to meet the needs of different customers for high-quality printing.