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Lubrication-free linear guides for maintenance-free spice vending machines

As part of young engineers support (yes), students worked with EMAG LaserTec GmbH engineers to develop a vending machine specifically for packaged spices. In order to deliver the salt, curry, and pepper tins quickly from the compartments, they used igus drylin W linear guides, which ensure that the machine moves quickly, smoothly, and without lubricants.

Profile

  • What was needed: Three linear guides for the vending machine axes
  • Requirements: Food grade, long service life, smooth motion
  • Application area: Vending machinery
Using learned knowledge directly is something those attending the Student Engineering Academy, and also the five students from the Rosenstein grammar school in Heubach, Germany, get to do. In the training workshop at EMAG LaserTec GmbH, they built a spice vending machine for supermarkets to speed up selection and purchase.
 
drylin W in the EMAG LaserTec GmbH spice vending machine

Problem

In order for the system to be able to take the right spice out of the vending machine, the inventors needed smooth, long-lasting linear guides for the axes. A belt drive was chosen to drive the Z-axis. The challenge was to find a linear guide that absorbs the high vibrations. The components also had to be suitable for use in the food sector, and their service life had to be as long as possible.

Solution

The students contacted igus and found the perfect solution: three linear guides from the drylin W modular system. They ensure that all compartments are easily accessible so that the right spice can be taken out and dispensed. The tribo-plastic sliding elements in the guide carriages need no external lubricants whatsoever and are suitable for use in the food industry. The absence of greases also means that no dirt will accumulate on the linear carriage and block the guide. The guides can easily absorb the vibrations on the Z-axis.

Further information

drylin linear bearings

drylin linear technology

An overview of all the important information: standard parts, new products, application areas, and so on
Snack vending machine

Products for vending machinery

Plain bearings, linear guides, energy chains, and drive modules for fully automated systems


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