Precise control of servo printing machines, the secret to improving printing quality and production efficiency

Servo printers can significantly improve printing quality and production efficiency through precise control. Here are some key tips to help achieve this goal:

一、Choose the right servo system

1. Matching motor and drive:

Servo motors, encoder feedback, and servo drives (sometimes called amplifiers) should be designed as a unit that works together to match the motor and load.

In precision motion applications, consider using more rigid materials or adding support structures to build the actuator.

2. Performance parameter optimization:
For high-performance systems, the load’s response inertia (including the inertia of any gearbox and actuator) should be kept low, preferably 1:1 with the motor inertia.

When selecting spare systems and actuators, motion performance requirements such as maximum speed, acceleration rate, total stroke, negative acceleration, etc. should be carefully considered.

3. Saving box selection:
Precision planetary gear savers can provide better accuracy and repeatability, and have the highest efficiency.

The saving box can reduce the load’s reflected inertia, and its value is equivalent to a higher unit of transmission ratio.

Using a saving gearbox can double the available serial ports in the system, allowing the use of smaller motors and drives, thus saving costs.

二、Adjustment of printing machine parameters

1. Adjustment of printing pressure:
Pressure is one of the key factors affecting printing quality. The appropriate pressure should be set according to the material, thickness and ink properties of the substrate to ensure that the ink is transferred evenly and the printing is clear

2. Adjustment of ink viscosity:
The ink viscosity directly affects the printing effect and the ink drying speed. The ink viscosity should be adjusted according to the printing requirements and formulated to meet the printing requirements.

3. Printing speed control:
Printing speed too fast may cause insufficient ink drying and affect the printing quality; printing speed too slow may reduce production efficiency. The printing speed should be reasonably controlled according to the ink absorption of the substrate, the ink drying speed and the printing quality requirements.

三、 Optimization of operation process

1. Standardized operation:
Develop standardized operation procedures to ensure that operators follow unified specifications during the printing process. This helps to reduce human errors and improve the consistency and stability of printing.

2. Adjustment of die-cutting unit:
The key to the die-cutting unit is to die-cut the cardboard according to the style of the die. When adjusting, the horizontal switch of the glue should be turned on first, so that the glue and the die cutter have a horizontal movement range during operation to extend the glue. When installing the mold, the screws should be installed from the bottom of the mold first, and all the screw holes on the mold should pay attention to installing the screws to ensure the true roundness of the mold. When adjusting the specific position of the mold hole, the mold and the screw separation agent should be separated first, and then adjusted to eliminate damage to the adhesive. 3. Adjustment of the delivery unit: The key to the delivery unit is the stacking of semi-finished products. The distance between the front baffle of the pipeline part and the pipeline belt, as well as the distance between the side baffles of the pipeline part, should be adjusted to ensure that the cardboard can be stacked consistently. Adjust the speed of pipeline transportation to make the pipeline process smooth and avoid paper jams. 4. Equipment maintenance and management 1. Regular inspection: Regularly check the printing equipment to ensure that the equipment is in good working condition. Check the wear of components such as printing plates, rubber blankets, trays, and the operating conditions of the equipment. Problems should be dealt with in time to avoid 2. Cleaning and lubrication: Clean the printing press regularly to remove oil and dust on the surface of the equipment. Keep the equipment clean, reduce failures and fatigue, and extend the service life of the equipment. Regularly lubricate and maintain the key parts of the printing press to ensure smooth operation of the equipment.
3. Troubleshooting:
Once the printer is found to have a fault or abnormality, it should be stopped immediately for inspection and processing. Avoid the expansion of the fault or affect the printing quality.
Analyze and summarize the cause of the fault to prevent similar faults from happening again.

四、Control of environmental factors
1. Control of temperature and humidity:
Maintaining constant temperature and humidity is very important to ensure the stability of the solution color. Adjust the temperature and humidity of the factory according to seasonal changes and environmental conditions to meet the standards suitable for printing.
2. Fountain solution adjustment:
For printing presses that require manual addition of fountain solution, fountain solution should be used in advance. During the printing process, the temperature and concentration of the water and alcohol added to the water tank should be consistent with the original fountain solution in the water tank. In summary, the secret of precise control of servo printing presses lies in selecting a suitable servo system, adjusting the parameters of the printing press, optimizing the operating procedures, strengthening equipment maintenance and management, and controlling environmental factors. The combination of these measures can significantly improve printing quality and production efficiency.