PETpla.net Insider 06 / 2015

INSPECTION SYSTEMS 38 PET planet insider Vol. 16 No. 06/15 www.petpla.net Inspection systems for preforms With the PVS family, Sacmi offers a range of preform quality control solutions that join the tried and tested CHS systems for caps and the innovative Cube Eye, capable of producing a 3-D ‘CAT scan’ of the entire cap-bottle system. Thanks to its modularity, the machine can be enhanced with addi- tional functions such as weight and body checks by using a patented grid method that allows identifica- tion of defects which would normally only be visible with polarised light. All checks are performed by a system of HD cameras that executes accu- rate analysis of the entire product, eliminating the risk of residual defects and warning the operator every time production moves outside the optimal pre-set quality range. All machine-calculated datas are saved on statistical databases that can be consulted remotely and/ or after lengthy periods of time and exported towards other corporate management applications. The PVS002 Plus is flanked by the PVS003 and PVS024 models for high-speed preform quality control; they can be installed on lines with the moulding press, upstream from stretch-blow moulding, or off line. The PVS003 is particularly suit- able for quality control of 100% of line output, downstream from the press or before stretch-blow moulding. The system has 8 modules which perform quality control on all preform parts. In addition to the standard checks, it has a module for in-depth inspection of neck and thread. Capable of inspec- tion rates as high as 50.000pph, this machine allows continuous monitoring of output, guaranteeing all-round inspection of preforms and thus eliminating the risk of lots with faulty preforms, a possible source of customer complaints. This precision, speed and reliability also allow a gen- eral increase in production process efficiency, thus minimising any need for line downtimes. Sacmi offers a range of solutions, expanded and improved in recent years, that ensure quality control on both, the production line and in the test lab. Established in 1987, Sacmi’s Automation & Inspection Systems Division has been operating not only as a service to the various other group businesses but also, as an independent pro- vider of quality control machines and plants, high per- formance solutions that have reached wide- spread market acceptance. One of Sacmi’s solutions for PET manufacturing is the PVS (preform vision system) range for inspec- tion of performs, both on line and off line. One of the latest innovations in that range is the PVS002 Plus for the inspection of PET preforms; this further development of the PVS 2 series can test, with maximum preci- sion, up to 1.100pph. Designed to help quality control staff rapidly complete all their routine lab tests, the PVS002 Plus system is able to carry out, with a cycle time of 3sec., a broad range of checks:  identification of visual defects on the opening, finish, thread, body and bottom  measurement of dimensions  reading of cavity numbers The PVS 002 +