Professional interpretation of the function of the hot foil slitting machine to help the printing and packaging industry upgrade

As a key equipment in the printing and packaging industry, the function optimization of the hot stamping foil slitting machine directly affects the efficiency and quality of the hot stamping process. The following analyzes its core functions and industry upgrade value from a professional perspective:

First, analysis of the core functions of the hot stamping foil slitting machine

1. High-precision slitting system

◦ Using the combination of servo motor + high rigidity tool, the slitting accuracy can reach ±0.05mm, to ensure that there is no burr on the edge of the hot stamping foil, and to avoid the problem of flying gold and pasting during subsequent hot stamping.

◦ Dynamic tension control technology (such as PID closed-loop adjustment) ensures that the coil has no tensile deformation during high-speed slitting, especially suitable for easily deformable materials such as PET and OPP.

2. Intelligent adaptation module

◦ Multi-axis adjustable knife holder design, support flat knife and round knife switching, adapt to the slitting needs of different materials (such as ordinary anodized aluminum, laser foil, anti-counterfeiting foil).

◦ Automatic deviation correction system (CCD vision or ultrasonic sensing) real-time monitoring of foil misalignment, and the deviation correction response speed ≤ 0.1 seconds.

3. Efficiency improvement technology

◦ The double-station winding system realizes non-stop roll change, and cooperates with the pre-register function to reduce the waste of roll change (the loss of the traditional equipment is about 3-5 meters, but the new technology can be reduced to less than 0.5 meters).

◦ The maximum slitting speed can reach 300m/min (the industry average is about 150m/min), which is suitable for large orders.

Second, the upgrading value of the printing and packaging industry

1. Cost control

◦ Reduce the waste of hot stamping foil by precise slitting (the loss rate of traditional manual slitting is about 8-10%, and the automatic slitting can be reduced to less than 2%).

◦ Narrow slitting capacity (up to 1mm) to meet the needs of small batch customization and reduce the cost of trial production for customers.

2. Process expansibility

◦ Support special foil treatment (such as 3D embossed foil, holographic anti-counterfeiting foil) to help differentiated packaging design.

◦ When used with a digital hot stamping machine, variable data hot stamping (such as serial number, QR code hot stamping) can be realized.

3. Digital integration

◦ MES system interface can be optionally configured to upload data such as slitting length, speed, fault code and other data in real time to achieve production traceability.

◦ The remote diagnosis function reduces equipment downtime and improves OEE (Overall Equipment Effectiveness) by more than 10%.

Third, industry application scenario cases

• Cigarette pack printing: slitting 0.8mm width fine line bronzing foil, used for border decoration, extremely high precision requirements.

• Luxury packaging: Split matte and mirrored composite foils, keeping the seams out of place.

• Label anti-counterfeiting: slitting of laser holographic foil with micron thickness for pharmaceutical anti-counterfeiting labels.

Fourth, technology purchase suggestions

1. Priority is given to models with on-line quality inspection (such as infrared thickness measurement and surface defect detection).

2. Pay attention to the modular expansion capability of the equipment, such as the installation of UV curing units in the future to cope with the trend of cold stamping process.

3. Verify the energy consumption ratio of the equipment, the new inverter technology can save 15-20% energy compared with the traditional model.

At present, leading equipment manufacturers have launched slitting machines with AI algorithms to learn and optimize slitting parameters through historical data. It is recommended that enterprises choose the appropriate model based on their own product structure (such as whether it involves special-shaped hot stamping and three-dimensional hot stamping), and pay attention to the performance index requirements in the "Industry Standard for Hot Stamping Foil Slitting Machine for Printing Machinery" (CY/T 234-2020).