Multivac Relies on Kollmorgen for Pneumatic to Electric Transition
Resource from: Power Transmission Engineering Likes:165
Jul 28,2014
An increasing number of companies in the packaging machine industry have chosen electrical servo technology – mainly to replace motion axes previously powered by pneumatic systems. “Servo technology increases controllability and reduces noise emission. These systems also help us to increase the number of production cycles," Guido Spix, CTO Multivac, recently emphasized during a packaging show. The packaging machine company uses motion control solutions from Kollmorgen to reduce energy consumption, increase the overall machine effectiveness and improve safety of packaging processes.
Besides machine and operator safety, for Multivac, this also includes safe packaging processes. The excellent traceability and controllability of Kollmorgen’s servo technology for example, helped Multivac to design a more efficient sealing process for deep drawn packages with the additional benefit of improved food safety. This solution is currently used on the high performance deep draw machines, designed for mid-size to large loads.
Compared to traditional mostly pneumatic-driven lifting units, the new lines of R2XX to R5XX machines utilize a motor-gearbox combination to deep draw and seal the foil. These units utilize a knee lever mechanism to lift the molding tools – some weighing several hundred kilograms. They withstand the high bonding pressure of up to 20 tons, ensuring the two foils seal securely. Being a strategic motion control partner for Multivac, Kollmorgen implemented a compact unit consisting of an AKM servomotor and a cycloidal gear drive for the lifting axis. Kollmorgen calculated and selected the optimal motor size and gear drive type in close cooperation with Multivac’s engineering development teams.
Two important aspects for the drivetrain selection were the overall unit length and overload capacity. The model HKS03 six-point lift unit features a servo gear motor with brake having a total length of 307 mm and an acceleration torque of 1400 Nm. These results are possible thanks to the high power density of the AKM servo motors, the ideal overall length of the cycloidal gear drive and the fact that the unit comes without end bells and clutches. Piston rods convert the rotary to linear lifting motion. This solution has three significant advantages. Firstly, the energy efficiency of the machine increases because the pneumatic system was replaced as the power source to create the required pressure for the deep draw and sealing operation. Secondly, the geometry of the piston rods creates an extreme closing force at the end of travel which improves food safety. Finally, the high sealing force results in a more secure and thus reliable sealing process.
The two-component epoxy coat used for the hygienic design conforms with FDA 21 CFR 175.300 and is resistant against acids, bases and established cleaning agents with a pH range of 2 to 12. In a long term test performed by the company EcoLab, this coat withstood exposure to an equivalent of more than 2,000 washdown cycles including disinfecting treatments. Kollmorgen’s washdown gear motor comes standard with a white coating, significantly improving the machine operators’ ability to detect dirt and biofilms on the surface during cleaning operations.
Kollmorgen
URL: www.kollmorgen.com
(Power Transmission Engineering)
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1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
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