In recent years, standards for anti-counterfeit masking and privacy protection in flexible food packaging, household and personal care, and pharmaceutical packaging have become stricter. In continuous roll processing, covering old labels efficiently and smoothly is a technical challenge for many companies. Wanzhi Automation recently introduced the WZ-150 roll-material labeling machine, providing a reliable automated solution for position-specific masking on continuously running material.
Process challenges in covering old labels on roll material and our solution
In conventional rolled film processing, covering old labels or masking private information in specific areas often causes misaligned, wrinkled, or bubbled labels because the material stretches slightly or the web drifts. This affects appearance and can ruin an entire roll. To address this, Wanzhi Automation developed the WZ-150 roll-material labeling machine (Roll-fed Material Labeling Machine). It integrates unwinding, photoelectric detection and positioning, precise labeling, and automatic rewinding, keeping roll material moving continuously without interruption. It is designed specifically for covering old labels and masking private information, ensuring flat coverage with no bubbles or lifted edges.
WZ-150 core advantages and specifications
Designed specifically for continuous rolled film, the WZ-150 is optimized in several technical respects. First, a high-precision photoelectric tracking system identifies positioning marks on the roll in real time and triggers labeling in sync, holding labeling error within ±1 mm and effectively eliminating misalignment from web drift. Second, conveyor speed is steplessly adjustable from 15 to 25 m/min by variable frequency, matching the web pace of lines running roll materials of different thickness. Third, the heavy-duty one-piece stainless steel frame weighs 230 kg, suppressing vibration during high-speed winding and unwinding and preventing thin, soft roll stock from stretching under uneven tension. On the touch-screen industrial PC, label length, spacing, pressure, and other parameters can be stored with one touch, greatly improving changeover efficiency.
Selection criteria and typical applications
For selection and operation, companies should ask Dongguan Wanzhi Automation Technology Co., Ltd. for custom roller width and frame length based on their actual web width and thickness. The machine is widely used for covering old labels and masking privacy in flexible food packaging laminating film, household and personal care roll film, electronic release film, and pharmaceutical packaging film. Sensible parameter settings and tension control make the most of its continuous processing advantages and improve overall roll film capacity.
FAQ
How does the WZ-150 roll-material labeling machine ensure flat labeling on thin, soft film?
The heavy-duty stainless steel frame (230 kg) keeps the machine vibration-free at high speed, and stepless variable-frequency speed control with precise tension control prevents soft film from stretching or deforming, ensuring flat labels.
Is adjustment complicated when switching to a different roll width?
Not complicated. Roller width and frame dimensions can be custom-built, and the touch-screen industrial PC stores labeling parameters for different roll materials with one touch; when switching specifications, simply call up the matching program.
Besides covering old labels, what other processes can the machine handle?
Besides covering old labels, the machine can also be used for masking private information in specified areas of roll material and for applying protective film to surfaces, among other position-specific labeling and lamination processes.
Written by Wanzhi Automation