Extrusion Asia Edition 2-2022

使用PURITY SCANNER ADVANCED检查塑 料颗粒和给塑料颗粒 分类 Inspection and sorting of plastic pellets with the PURITY SCANNER ADVANCED 三个光学高分辨率黑白摄像机的组合确 保了对塑料颗粒中25µm污染物检测的 最高性能 The combination of three optical high- resolution black and white cameras ensures the highest detection of contamination from 25 µm in plastic pellets 100 % measurement of the wall thick- ness, as well as the determination of dia- meter and ovality for tubes with wall thicknesses from 1.5 mm due to its auto- matic adjustment of the rotation speed. Like all CENTERWAVE devices, the system is equipped with a transceiver that con- tinuously rotates 360 degrees around the product. In doing so, the CENTERWAVE 6000/250 automatically adjusts the trans- ceiver's rotation speed to the line speed, thus ensuring 100 % seamless quality control. Novelty: PURITY SCANNER ADVANCED with three innovative 25 µm high-resolution black and white cameras The plastics market is changing. Raw ma- terial shortages and price increases are challenging the industry. Consequently, the demands of the manufacturers re- garding quality control of pellets are also increasing. SIKORA takes this change into account and offers with the PURITY SCANNER ADVANCED a modular system for flexible optical online inspection and sorting of plastic material. "Even the smallest, critical contamination are reli- ably detected and sorted out by the sys- tem. Both the detection and the ejection behavior of contaminated pellets are per- fectly coordinated," explains Ralf Kulen- kampff, Head of Sales – Plastics. Thanks to the modular concept, different camera types can be used depending on the in- spected material. In addition to optical 25 µm high-resolution cameras, which detect black specks and discolorations, an X-ray camera can be installed to detect metallic contamination. Common sys- tems on the market have a maximum of two optical cameras. However, these quickly reach their limits due to relatively low coverage as soon as the contamina- tion are outside the cameras' field of view. "By using a third black and white camera in the PURITY SCANNER AD- VANCED, a significantly higher detection rate is achieved, so that more contami- nants are detected – this is unique with our system," explains Kulenkampff. The PURITY SCANNER ADVANCED auto- matically sorts out detected contamina- tion via a blow-out unit. For optimizing the by-catch, SIKORA has developed the "hybrid blow-out" function. The custo- mer can define in advance which conta- minants in the material are uncritical and select a smaller blow-out unit for these, so that their by-catch is reduced. These include, for example, small, light-colored black specks that frequently occur in the material. On the other hand, a larger blow-out unit is specified for critical con- taminants, for example metal contami- nants, which can impair the functionality of the subsequent end product. "The in- teraction of reliable detection and hybrid blow-out ensures the highest material quality. At the same time, production pro- cesses are optimized, and the reduced by- catch contributes to cost-efficient and sustainable production," says Kulen- kampff. Live material tests with the PURITY CONCEPT For random sample inspection of plastic pellets or test plates for speck analysis, SIKORA presents at the K the PURITY CONCEPT Systems with optical inspection (PURITY CONCEPT V) or X-ray analysis (PURITY CONCEPT X). Within a few se- conds, depending on the system, the test material is inspected for metal contami- nation or optical deviations. Contami- nants are automatically detected, visualized and statistically evaluated. In a laboratory environment live material tests with the PURITY CONCEPT V are offered at the SIKORA booth. Visitors are invited to send in free of charge pellet samples, which will be inspected and analyzed di- rectly on the booth with the PURITY CONCEPT V. Alternatively, visitors can bring small quantities of their pellets di- rectly to the booth for testing and eva- luation and personally convince themselves of the precision, speed and ease of operation of the system. Service Maintaining the availability and efficiency of the SIKORA systems at the customer's site is SIKORA's top priority. At the K, the SIKORA service team presents the entire range of its service portfolio. From instal- 43 Extrusion Asia Eidition 2/2022