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The design and development of a vibrational shaker

The project is to design and develop a vibrational shaker for the paint tinting market.

A vibrational shaker is used in the paint tinting and mixing industry. The first stage of the process is tinting paint. This is done by adding specific volumes of concentrate colorant into a base white paint to make a specific colour. This is typically done using a manual or automatic dispenser. The second stage is to homogenise the paint. This is typically done using either a vibrational shaker or a gyroscopic mixer. A vibrational shaker works on the principle that the paint can can be positioned onto a can shelf and clamped firmly in place. This platform is in turn connected to an off centre crankshaft that rotates at speeds between 600-700 rpm (rotations per minute). This causes the can to oscillate relative to the offset on the crankshaft. This equipment is primarily used at point of sale applications such as DIY (Do-It-Yourself) and hardware stores. The size, shape, strength and weight of paint cans can vary significantly. Paint cans can be as small as 0.5 Kg and up to 40 Kg, and they can vary in both shape and strength. The vibrational shaker must be capable of providing a tight grip on the paint can to ensure it remains secure during shaking but also that it does not crush the can. The key requirements for a shaker are as follows: - Mixing Performance - Reliability - Ease of use. The mixing performance is related to both the speed of the can platform and also the extent of the can oscillation. Performance enhancement features such as speed control is also being researched to help reduce mixing times. Research has shown that the deeper the colorant is placed into the base white paint, the quicker it will homogenise. The use of a slow speed has the potential to enable the colorant to be dispersed into the centre of the base white before the high speed provides the homogenisation. High speed at start up can cause the colorant to stick to the lid, increasing the time for homogenisation. Reliability is a major issue for users. Due to the very nature of this machine, the vibration of a 40 kg can cause high stress that is very often fatigue related. These also can be hard to simulate as operation of the machine varies significantly from country to country. Electrical reliability on a vibrational machine is also very difficult to maintain. The machine must be easy to use and also be robust in order to withstand abuse. In most user applications, there is little training. The ease of operation and the safety features are required for satisfaction of the user and to provide reliability. Keywords: vibration, mixer, shaker.
Acronym: 
VIBRATIONAL SHAKER
Project ID: 
3 568
Start date: 
01-04-2005
Project Duration: 
30months
Project costs: 
550 000.00€
Technological Area: 
Mechanical Engineering, Hydraulics, Vibration and Acoustic Engineering related to construction technology
Market Area: 
Coatings and adhesives manufactures

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.