WIN woodworking INTERNATIONAL 2023/1

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MACHINING TECHNOLOGY Better than the original Müller Manufaktur is gradually replacing the original clamping devices of its machines from the Italian manufacturer SCM with the new Schmalz vacuum blocks VCBL-S6. They not only reduce set-up times and are cheaper to purchase, but also offer higher holding forces. The vacuum blocks VCBL-S6 from Schmalz have significantly improved the processes at the furniture manu-facturer Müller Manufaktur. The teat cup can be fixed in the receptacle without tools in 15-degree increments using the orange clamping levers. Short set-up times: Adjusting the rotating suction blocks and changing the suction plate is quick, easy and tool-free for carpenter Michael Spinner. Markus Hermann (left), Managing Director of Müller Manufaktur Möbelbau GmbH, with Matthias Schmider, Product Manager at Schmalz. Müller Manufaktur Möbelbau GmbH, founded in 1930, operates in the premium sector of woodworking. The company, based in Bad Rippoldsau in Baden-Württemberg, develops individual office furniture for well-known companies. The portfolio includes conference tables, side and highboards, workstations, cabinet modules and reception counters. Müller Manufaktur also equips educational and research institutions as well as German embassies worldwide. In the modern company near Freudenstadt, twelve employees share a love of wood in perfection – and have also established a strong international presence with their exclusive products. In order to produce the high-quality pieces of furniture precisely and with little waste, the company uses, among other things, modern CNC machining centres from the Italian manufacturer SCM. The Morbidelli m 2 00 is used to produce flat workpieces such as table tops or work surfaces in small quantities or one-off production. The machines can machine the blanks from five sides, whereby high lateral forces occur that the clamping system must securely clamp despite rough surfaces or curved contours. The furniture manufacturer was not entirely satisfied with the original vacuum block suction cups from SCM used until then. “In terms of stability, they are comparable. However, if the SCM vacuum blocks are damaged, it is very difficult to replace the sealing lip because we can only disassemble them with a flat-blade screwdriver and a lot of tact,” describes Michael Spinner, carpenter at Müller Manufaktur Möbelbau GmbH and machine operator. “In doing so, there is a risk of damaging the suction cup even further.” In addition, the carpenters have to readjust the sealing lip several times until it fits perfectly. The financial aspect was also a thorn in the carpenter’s side: the original vacuum blocks are expensive. Coordinated with SCM In this context, Müller Manufaktur gladly accepted the offer from vacuum specialist J. Schmalz GmbH to test its newly developed vacuum blocks of the type VCBL-S6. “We have precisely adapted the new clamping system to the consoles of the SCM machines,” describes Matthias Schmider, Product Manager at Schmalz. A robust base body made of glass-fibre reinforced plastic supports the suction plate with diaphragm either directly or is equipped with an elevating suction cup. The machine operator can simply fix this in production in 15-degree increments with a clamping lever. The sensing valve allows unused suction cups to remain on the machine. “This also reduces the set-up effort,” Schmider emphasises. The suction plate protects the vacuum block from penetrating chips with a membrane. The elastomer part provides optimum sealing and can be replaced quickly and without tools when worn. To prevent errors when ordering spare parts, Schmalz has equipped the VCBL-S6 vacuum block with an NFC tag (Near Field Communication). When the user places his smartphone on the clamping device, he can see all the relevant product data directly in the Schmalz ControlRoom app. Holds up perfectly The vacuum blocks from Schmalz have been in use at Müller Manufaktur since June 2021 and deliver convincing results. “The holding force is 20 percent higher compared to the SCM original, while the stability is comparable,” describes Hermann. The company also benefits from reduced set-up times: The carpenters can quickly adjust the rotating suction block and replace damaged suction plates easily and without tools. The high holding forces have significantly improved process reliability at high feed rates and cutting depths. Compared to the original, the height tolerance with Schmalz is more dimensionally accurate, emphasises the Black Forestproud master carpenter, as the managing director introduces himself in social media. The mixed operation between the suction cups from SCM and Schmalz also runs smoothly, he adds. This is important because Michael Spinner wants to use up the standard stock of SCM product first before he gradually has the VCBL-S6 variant installed. Meanwhile, the further goal is clearly defined: “We will gradually switch completely to the Schmalz solution. Since the pilot project at Müller Manufaktur, regular contact with Schmalz has developed. “We are now the direct contact when it comes to new projects or feedback from the field. Both sides benefit from this,” outlines Managing Director Markus Hermann, who was closely involved in the project. He gives good marks to the cooperation in the project phase: “This has always gone smoothly, and Schmalz has always taken into account the different workloads of our joinery when scheduling.” www.schmalz.com 18 No. 1 • March 2023
MACHINING TECHNOLOGY Panel-sizing and sorting line The MHF panel-sizing and sorting line stands for particularly efficient and space-saving integration into the production process. The plant concept is based on a modular design where all components – feeding system, edging saw, panel-sizing saw, transfer unit and sorting and stacking system – can also be used individually. Feeding system Packages can be formed from a stack of large size panels via the feeding system by means of a conveyor lift with pusher and then fed to the panel-sizing saw. The feeding system can be adjusted to meet client’s requirements or can be designed individually. And works for all machinable materials such as chipboards, plywood boards, HDF, MDF, OSB with maximum size of the boards: 2500 × 5600 mm Edging saw integrated into the feeding system An additional edging saw can be integrated in the feeding system to increase the cutting performance. This concept also enables an automatic discharge of the cut off strips below the saw and a manual removal is not required. Advantages panel-sizing saw The saw, designed by MHF according to the proven principle of the Teutomatik saw, offers fully automated cutting of large size panels.The saw blade can be swivelled by 270 degrees via a rotary tube and all cuts are made automatically one after another. • Maximum cutting length 5,600 mm • Low space requirement due to lengthwise and crosswise cuts in one system • Careful handling of the product due to the moving saw, the product does not move during processing • High cutting performance • Minimum cutting height 10 mm • Maximum cutting height 165 mm Saw table Rising longitudinal and transverse stops as well as an aligning rail and a chain-driven pusher align the boards on the saw table. By raising individual conveyor belts in the saw table, cut panel strands can be conveyed out and further cross cuts can be made on the remaining stack. Transfer unit with pusher Via a roller conveyor with extraction channels at the top and bottom as well as another one with an overhead pusher, the micro stacks produced by the panel-sizing saw are fed to an angular transfer and the subsequent sorting and stacking system. If the stacks need to be rotated, a pusher M transports the parts over polished lifting bars, Y which enable a gentle sliding, onto a robot gripper. Then the robot rotates the stacks by 90° CM and places them on the outfeed roller conveyor. MY The transfer unit can be individually adapted to your needs and to the structural condi- CMY K tions on site. Sorting and stacking system Stacking of the micro stacks takes place fully automatically on lifting frames arranged on both sides. The micro stacks fed in are pushed by a pusher onto base boards which are automatically indexed downwards by the lifting frame. C CY The stack supporting base boards can be automatically fed in advance from a magazine. The finished stacks are discharged centrally below the upper roller conveyor. www.mhf-gmbh.de WIN_2019.pdf 24 15.02.2019 13:55:48 Less energy, more power! Energy-efficient filtration plants for the woodworking industry. MultiStar filtration plant Made by Höcker Polytechnik ▪ filtration ▪ dedusting ▪ briquetting ▪ recycling ▪ varnishing Höcker Polytechnik GmbH Borgloher Str. 1 ▪ 49176 Hilter a.T.W. Germany ▪ Mail info@hpt.net Fon +49 5409 405 0 www.hoecker-polytechnik.com No. 1 • March 2023 19
Page 1 and 2: ISSN 1438-1672 · Vol. 41 · No. 1/
Page 3 and 4: CONTENTS EDITORIAL Eric Schäfer Ed
Page 5 and 6: Impressum ISSN 1438-1672 WiN - wood
Page 7 and 8: COMPANIES Shaping the change. 9-12
Page 9 and 10: COMPANIES DIEFFENBACHER to supply a
Page 11 and 12: PREVIEW It’s LIGNA again! The Woo
Page 13 and 14: PREVIEW Innovative out of passion,
Page 15 and 16: PREVIEW Cefla Finishing takes part
Page 17: MACHINING TECHNOLOGY Two hundred hi
Page 21 and 22: SURFACES Perfect-family A sustainab
Page 23 and 24: SURFACES www.rehau.com Lighting sou
Page 25 and 26: USER REPORT Digital printing as a s
Page 27 and 28: USER REPORT flooring with the syste
Page 29 and 30: SUSTAINABILITY stallation of the pr
Page 31 and 32: EVENTS TechTogether@Hymmen in-house
Page 33 and 34: FAIRS WOOD TAIWAN 2023 Envision a g
Page 35 and 36: GUIDE TO PRODUCTS AND MANUFACTURERS

WIN woodworking INTERNATIONAL 2023/1

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