Panels & Furniture Asia November/December 2022

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FURNITURE MANUFACTURING “First, we had a lot of chip generation in upstream processes that could not be completely removed from machining, even with very good extraction. Then it was a matter of cleaning the parts as close to detection as possible — brushes and also cleaning fluid were used for this. The brushes could not be kept 100% clean in ongoing production, and the liquid did not evaporate optimally every time. And we already had a breeding ground for contaminants or even detect streaks on the workpiece due to remaining moisture. In our case, the path to the scanner tended to be a bit too long, and this could cause dust to settle again. The system should be able to detect this in the future. It was the same with labels. We did not actually use them. However, it was possible that parts from the residual board storage were included in the waste optimisation, which were given a label for storage. This label, or even a piece of it, should also not lead to an error message.” Eisenkohl added: “The classifier for dirt detection that we are currently working on is a lever for all companies to further improve the accuracy of a ‘real’ error message in the future. We are already doing well, but we want to work with customers like Hali to improve system performance even more. And experience shows that most detections are caused by contamination; large scratches in the surface are rather rare.” A scanner also has its limitations. Labels are a problem, because they can conceal surface defects. Even high-gloss surfaces with protective films cannot be detected. Nevertheless, Hali is satisfied with the results, as Helfenschneider declared: “Before we got the inspection system, we detected about 40% of rejects in the machine area and 60% of the defects precisely when the furniture was assembled. Now, in more than 80% of the cases, we find the defects already in the parts production. And this increases our potential enormously.” Since the system was installed, the scanner has already helped to detect machine problems and minimise them at an early stage. A bent collet chuck on the saw has left distinctive marks at a specific point on the workpiece surface, and with the error messages and digital recordings, the problem is found and eliminated. DETECTION PERFORMANCE STATISTICS The Baumer scanner also helps with general quality control vis-à-vis suppliers. Helfenschneider described: “Even before we got the ColourBrain Furniture 4.0, there was documentation of defects to prove that the material was already of inferior quality upon delivery. Based on these records, we even launched a quality offensive in 2017 in the direction of our suppliers. In general, the quality we receive is now right. But with the scanner and the digital recordings, it is now much easier to create a good ‘defect log’. This is because Q-Live, a tool in Baumer’s plant software, allows companies to obtain comprehensive statistics on detection performance. While we cannot necessarily trace a defect back to a specific wood-based panel, we can at least trace a batch.” Helfenschneider also praised the Baumer scanner’s user-friendliness: “Maintenance and servicing take up only a small amount of time. For what the system does, this part is unproblematic and easy. We are also able to configure and set up everything ourselves, so we do not have to contact Baumer for every action. In addition, the range of individual setting options is enormous.” The easy handling of the system also refers to the detection of new decors, as Helfenschneider reported: “There are already enough possibilities given on the part of the software. We only have to ‘categorise’ a decor, whether it is smooth or textured, light or dark, plain or patterned. So, any number of new decors can be added. We could not afford to train the plant with a new decor over a long period of time first: If a customer ordered furniture in a special decor, which we consequently ordered from the supplier for the first time, then we must be able to programme it in and make it ‘scannable’ within a very short time so that production ran efficiently. Alternatively, we could exclude these parts from detection. But then such a system would not be worthwhile. We already wanted to inspect 99.9% of all parts.” Eisenkohl elaborated: “There are usually a maximum of 12 categories for grouping a workpiece or decor. This is exactly what makes our systems so applicationoriented — there is no need to teach 600 decors if there is a large variety in a company. Instead, the system brings a really large amount of knowledge to the table to reliably find the defects in the most diverse decors.” Such close cooperation with new tasks is beneficial for a machine manufacturer, because it moves the plants forward in the long term. Eisenkohl concluded: “The scanner project for Hali was another leap for us in terms of gaining know-how. This will benefit other customers with similar requirements in the future. With Hali, we were very fortunate to have access to certain data from the company in detection during the project. Analysing the faults we found and assessing the stability of the system gave us another boost. We rarely get that much insight, especially after installing a scanner.” P The article was first published in Möbelfertigung by Doris Bauer and is reproduced here with permission. The Baumer scanner is located in the variant production line at Hali and detects all furniture parts at normal throughput speed 36 Panels & Furniture Asia | November / December 2022
FURNITURE MANUFACTURING Ways to improve the quality of edgebanding equipment accuracy and technologies. The company focuses on EVA, PUR adhesive, hot air banding, laser banding process, striving to provide high-quality edgebanding solutions for furniture enterprises. Continuous development of the furniture industry and improvement of people’s quality of life have led to higher expectations of furniture quality by consumers, and wholehouse customised furniture and custom-made concepts have become a trend. In the face of new furniture concepts and technologies put forward by businesses, the edgebanding effect for consumers is arguably the most intuitive and easiest factor for them to judge the quality of furniture, apart from different design styles. Ideal edgebanding includes aesthetic fitting and firm pasting, smaller colour difference and glue seam between edgeband and the panel, as well as smooth and flat corners, making the panel look like a whole board with minimised traces of processing. In essence, the quality of edgebanding directly affects the overall aesthetics and durability of the furniture. Various factors such as edgebanding machinery, edgeband, melt adhesive, boards, and process will have an impact on the final banding effect. Currently, the edgeband and workpiece joining process usually includes ethylene vinyl acetate (EVA) hot-melt adhesive, polyurethane (PUR) hot-melt adhesive, hot air banding, and laser banding. Nanxing Machinery, for the past 25 years, aims to keep enhancing HOT-MELT GLUE: DOUBLE PRE-MELTING GLUE APPLICATION SYSTEM With low cost and low technical threshold in woodworking equipment and materials, traditional EVA hot-melt adhesive banding still dominates the market. The glue pot adopts the glue taking method of absorbing glue on the glue wheel. The glue pot has a large capacity, and the glue near the glue shaft will be consumed first, and the remaining glue will be heated repeatedly in the pot, which is prone to scorch and discolouration , and impacts the adhesive’s performance and aesthetics of the glue seam. Using Nanxing’s premelting glue application system, a part of the hot-melt adhesive is preheated to a certain temperature in the pre-melting glue box above. Then the pre-melting glue is injected into the glue tank below for a short period of heating through motor control according to the amount of glue needed for the board, before the glue is applied directly to the workpiece. Repeated heating is avoided. The 50mm-diameter gluing roller also has a heating rod in the middle, ensuring better control over the temperature and amount of glue applied. The glue can be melted and used immediately to keep the hot-melt adhesive, thus ensuring an optimal performance at a proper Panels & Furniture Asia | November / December 2022 37
Page 1: www.panelsfurnitureasia.com AN EXHI
Page 6 and 7: Find your supplier here! These comp
Page 8 and 9: CONTENTS CONTENTS PANELS & FURNITUR
Page 10 and 11: FROM THE EDITOR Standing together i
Page 12 and 13: NEWS TEKNOS EXPANDS TO VIETNAM WITH
Page 14 and 15: NEWS HOMAG UNVEILS DRILLTEQ H-308 F
Page 16 and 17: NEWS FUTURE HEIRLOOMS: NEW DESIGN C
Page 18 and 19: MARKET REPORT Global economic slowd
Page 20 and 21: ENVIRONMENTAL REPORT The role of an
Page 22 and 23: ENVIRONMENTAL REPORT Innovative rec
Page 24 and 25: ENVIRONMENTAL REPORT intentions”,
Page 26 and 27: IN PERSON “Delivering added value
Page 28 and 29: IN PERSON It plays an important rol
Page 30 and 31: PRODUCT HIGHLIGHT Automated spray c
Page 32 and 33: PRODUCT HIGHLIGHT woodCommander 5:
Page 34 and 35: PANEL MANUFACTURING 2022: A year ri
Page 36 and 37: FURNITURE MANUFACTURING Defect dete
Page 40 and 41: FURNITURE MANUFACTURING temperature
Page 42 and 43: FURNITURE MANUFACTURING The role of
Page 44 and 45: FURNITURE MANUFACTURING Advanced wo
Page 46 and 47: MATERIALS On market diversification
Page 48: MATERIALS more slowly, they absorb
Page 51 and 52: FLOORING integrating some adjustmen
Page 53 and 54: RECYCLING this article, we will loo
Page 55 and 56: STRUCTURAL ELEMENTS Little Finlandi
Page 57 and 58: STRUCTURAL ELEMENTS “In the case
Page 59 and 60: WOOD CLINIC II. treatment is in pla
Page 61 and 62: Build Sustainably Build with Wood E
Page 63 and 64: SUSTAINABILITY they are cut down to
Page 66 and 67: SHOW REVIEW IFMAC & WOODMAC 2022 en
Page 68 and 69: SHOW REVIEW VietnamWood 2022 The 14
Page 70: INDEX OF ADVERTISERS PANELS & FURNI

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