Designing and Manufacturing Custom Products for
AGRICULTURE & CONSTRUCTION
SPRINGS, RETAINING RINGS, STAMPINGS, & MACHINED PARTS
» De sign Note s
Edited by: Mike Santora • Associate Editor
Open and shut case: Linear-rotary motors smooth out closure processes Engineers from Tölke, a packaging machinery specialist, were looking to design
Springs & Parts for Engines, Transmissions, Clutches, Brakes, Chassis, Suspensions, Hydraulics, Tillage/ Sprayers, & Vibratory/ Material-Handling Equipment for Agriculture & Construction Equipment, Advanced In-House Engineering, Development Processes, & Metallurgy Expertise Customer Collaboration & Support for Design, Prototyping, & Pilot Production ISO 9001 • Made in the USA
closure processes with more flexibility using linear-rotary motors instead of conventional cam disc technology. This need led the Tölke design team to outfit its new filling and closing line with linear-rotary motors from LinMot. The company had already taken several measures to add flexibility to its filling and closing machines that used conventional cam-stroke technology. By using transport cups with identical outer shapes and individualized inner contours, often only the cups had to be swapped out for a product changeover. If it was necessary to swap out all of the part-specific components of a machine, then Tölke made sure that this could be done quickly by hand, with no tools required. However, if the closing process itself needed to be modified for a product changeover, it was necessary to change out the mechanical cams involved in the screwing process. This is a time-consuming and costly process. As a result, Tölke built a carousel machine with 16 closing stations for an application with frequent product changeovers. The entire screwing process now uses a model PR01-84 linear-rotary motor at each station.
e otors, part of th The electric m ecially sp e er w LinMot, PR01 series from wing re sc d e closing an developed for th r ea mbine both a lin process. They co a ry direct drive in motor and a rota t) Mo Lin g. (Photo: compact housin
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DESIGN WORLD
April 2016
www.designworldonline.com
3/30/16 2:58 PM