The startup operation of the high-speed CNC cardboard Flexo printer die cutter slotter machine must follow standardized procedures to ensure safe operation and printing quality of the equipment. Here are the specific operation methods:

Pre-startup preparation

1. Equipment inspection: Clean the Corrugated carton flexo printer slotter die cutter machine and surrounding debris, check the oil level and lubrication points (add oil/butter daily), confirm that the electrical system voltage (220V) and air pressure (0.5MPa) are normal, and the emergency stop button function is effective. ‌

2. Material configuration: Check the work order requirements, adjust the viscosity of water-based ink (45-60 degrees for large-area patterns, 30-40 degrees for fine graphics and text), install the printing plate and check its integrity. ‌

3. Pre treatment of cardboard: Remove defective cardboard such as bends and exposed tiles, and stack them flat on the paper feeding platform. ‌

Parameter Settings

Paper feeding system: Adjust the servo leading edge for paper feeding, set the fan air pressure according to the warpage of the cardboard, and set the gap between the side baffles to 5mm; enable the adaptive mode for bent cardboard. ‌

Printing unit: Pre adjust the pressure of the embossing roller to 1.0-2.0kgf/cm ², the scraper angle to 60-70 °, and the registration accuracy to ± 0.1mm

Slotting/die-cutting: Install cutting tools according to the size of the cardboard box, rotate the main blade clockwise to remove impurities and prevent splashing, and the slotting depth error is ≤ 0.5mm

Drying system: Preheat the oven to ≥ 70 ℃, adjust the wind speed according to the printing speed step, and dry the ink for ≤ 3 seconds. ‌

Startup and Debugging

Air transfer test: Start the main motor and ink circulation system in sequence, observe for any abnormal noise or vibration, and confirm that the main drum is rotating correctly. ‌
Trial printing: Check the color accuracy, image clarity, and slot position, adjust the printing pressure or cutting tool until it is qualified. ‌

Parameter tuning: Optimize ink flow rate, drying temperature, and other parameters based on the trial printing results. ‌

Precautions

Wear protective equipment during operation and do not touch rotating parts or adjust equipment in operation. ‌

It is strictly prohibited to start the gearbox without oil, and the speed control knob must be reset before starting. ‌

During high-speed printing, avoid sudden stops and gradually reduce the speed to stop the machine. ‌

Shutdown and maintenance

After stopping the 2 color flexo printing slotting die cutting machine , empty the ink tank and rinse the mesh roller, and seal and store the residual ink. ‌

Clean the residual ink on the surface of the printing plate and impression cylinder, check the pneumatic lifting device weekly, and calibrate the reference line of the registration system monthly.

If you are also interested in this machine,please don’t hesitate to contact us:

Overseas manager: Tom Wang

Email:cartonmachine.tomwang@aliyun.com

Phone/Wechat/Whatsapp:+86 13303078975