Quality control for flawless preforms
Sacmi’s PVS156 vision system offers continuous, in-line quality preform control without interrupting machine operation. Offering real-time data analysis and user-friendly reporting, the system is claimed to empower preform producers to elevate both quality standards and production efficiency.
The PVS156 features a comprehensive camera system, utilising six cameras to inspect preforms from every angle. Camera 1 focuses on the top seal area, detecting defects like dents and short shots, while also measuring inner diameter and ovality for precise shape control. Camera 2 examines the preform bottom, identifying issues such as crystallisation, gate flash, and pinpointing holes through the gate. Camera 3 is dedicated to dimensional analysis, capturing 44 images during a 360-degree preform rotation to measure critical dimensions like neck diameters and support ring heights, customisable to specific requirements. Camera 4 utilises polarised light and artificial intelligence to differentiate good preforms from bad with accuracy. Camera 5 provides an unrolled view of the neck, detecting inclusions, black spots, and reading cavity numbers with dual lighting. Camera 6 analyses the preform body, measuring diameters, gate length, wall thickness, concentricity, and colour variations, ensuring adherence to colour standards and rejecting preforms showing signs of excessive yellowing (indicative of RPFT degradation).
Beyond inspection: empowering data-driven decisions
Beyond inspection, the PVS156 delivers valuable data and comprehensive reports, including defect types, defects per cavity, measurement statistics, weight distribution, and historical performance data for informed decision-making.
Operators can fine-tune the inspection process to their specific requirements by adjusting sensitivity, focusing on specific columns, and permanently rejecting problematic cavities. At NPE 2024, Sacmi will be showcasing its PVS156 vision system incorporated in the IPS 300 press (see also page 45).
