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WiN woodworking INTERNATIONAL 2019/3

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  • August
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WiN - woodworking INTERNATIONAL is the international magazine for the woodworking industry. We report on all aspects of woodworking from board materials, wood treatment to machines, tools and technical know-how, from timber engineering supplies to the latest developments in technologies and markets.

COMPANIES LIGNIA

COMPANIES LIGNIA Branches out into Europe and Asia with Global Timber UK-based LIGNIA ® Wood Company, the modified timber business, has announced a new distribution partnership that covers much of Europe and South East Asia with Global Timber, one of Europe’s leading timber companies. Peter Baek, CEO Global Timber, Steve Rogers, Commercial Director LIGNIA and Kasper Fredsted, Creative Director Global Timber. (From left to right) Global Timber, based in Aarhus in Denmark, has the largest warehouse in northern Europe for hardwoods, with stock purchased on six continents. In addition to its European sales, it also has a significant presence in South East Asia. The agreement between LIGNIA and Global Timber covers an initial five-year period. LIGNIA Yacht will be sold across Europe on a joint exclusive basis and LIGNIA and LIGNIA Fire (the latter when it comes on stream in 2019) across the Nordic countries exclusively. Global Timber will also sell LIGNIA and LIGNIA Fire in South East Asia via its offices in Malaysia. LIGNIA is FSC ® -certified softwood that is modified in the company’s new manufacturing plant in Barry and then turned into a wood with all the aes- thetic beauty and working properties of many popular hardwoods such as Burmese teak or European oak. Applications are varied depending on product and include yacht decking (LIGNIA Yacht is the only proven wood alternative to Burmese teak for yacht decks) and joinery including decking, flooring, cladding, doors and more. LIGNIA’s Commercial Director Steve Rogers said: ”We’re already working with leading distributors in the UK and North America and I’m delighted to say that Global Timber will be a very important element in our development now across Europe and Asia. Thanks to Global Timber, LIGNIA is now available from their Danish and German depots anywhere in Europe within 48-72 hours.” www.lignia.com SPÄNEX Successful at LIGNA 2019 SPÄNEX, the specialist for extraction and briquetting systems, presented its innovations and product improvements on the subjects of extraction, conveying, filtering, dust extraction, briquetting, paint mist extraction, control and shredding. The eye-catcher of the trade fair appearance were the extraction and filter systems to which the woodworking machines exhibited and demonstrated by the WEINIG Group were connected. The required extraction volume flow of 87,000 m3/h was provided by two filter systems and two dust extractors. The two compact filters and the dust extractors were equipped with efficiency-optimised and speed-controlled radial fans. Depending on the number of machines demonstrated, only the quantity of volume flow required was provided via the speed control units, i.e. the extraction capacities were automatically adapted to the respective requirements. This energy-saving mode of operation could thus be demonstrated to the customers in live operation. The two compact filters as well as the dust extractors were convincing due to their particularly quiet operation, which is essentially due to the effective sound insulation of the fan cells. Briquetting press type SHB 250. Under one of the two compact filters and under the two dust extractors, powerful briquetting presses were arranged, which were automatically put into operation depending on the amount of chips. During live operation, the customers were thus able to gain an impression of the working method and performance of the machines as well as the outstanding briquette quality. Also on display was the most powerful compact briquetting press of the series with round briquette, the design of which can be placed both under a dust extractor and under a filter system. The chips are conveyed from the container via the fall stack into the feed screw, which transports the material into the compacting chamber in metered quantities. The dosage depends on the material properties. www.spaenex.de 12 No. 3 • August 2019

One of the latest innovations developed by Bonfiglioli is about the extension of the range of safety functions available on frequency converters and servo drives, to open new opportunities at the application level and to avoid the need of external components, which generate additional costs and complexity in the electrical installation. Bonfiglioli Innovation for Functional Safety with Digital Approach Reducing Risks for Operators and Machines While Simplifying the Safety Concept One of the latest innovations developed in Bonfiglioli Electronics R&D Department is about the extension of the range of safety functions available on frequency converters and servo drives, to open new opportunities at the application level and to avoid the need of external components, which generate additional costs and complexity in the electrical installation. The project has focused on both open loop and closed loop safety functions, with the possibility to control them not only via safe digital I/Os, but also via safety fieldbuses (FSoE, Profisafe), extending in this way the level of flexibility and digital integration of the system. One main activity has been the development of SLS (safely limited speed) safety function, both sensorless and in closed loop, with the possibility to dynamically set several different safe speed thresholds directly via safety fieldbus. Such a function is particularly appreciated in material working machinery, where it is often required to set different safe speed limits according to the tool in use and avoiding unnecessary downtimes. The possibility to flexibly do this with integrated safety, and avoiding the use of encoders thanks to sensorless safety technologies, ensures the protection of the user and of the machine itself in a robust, cost effective and easily certifiable way. The innovation has been accomplished through the development of a single control unit, which is able to execute both the SLS function, according to the standard EN61800-5-2, and the process-dependent speed limitation. The superimposition of both functions needs the independent parameterization of two limits. A first parameter defines the limit of the safety function SLS and a second parameter determines the threshold value for the SLS function with sliding process-dependent speed limitation. This second value is not fixed and can vary during the manufacturing process. In order to avoid unnecessary interruptions of the manufacturing process, a realtime adjustment of the sliding speed limit is required. This requirement has been implemented by a parameter transmission via safety fieldbus (FSoE, ProfiSafe), giving maximum flexibility at the system level. The execution of both functions, SLS according the standard EN61800-5-2 and SLS function with sliding limits, is possible with safety encoders and also sensorless. Bonfiglioli’s innovation is aimed, more in general, at offering frequency converters with advanced integrated safety functions for a reduction of wiring, maintenance and servicing effort together with a simplification of the safety concept. These safety functions will be available on the next generation of Bonfiglioli frequency converters, planned to be launched in 2020. www.bonfiglioli.com No. 3 • August 2019 13

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