Introduction
Increasing demands by profile extrusion markets and particularly the plastics sector force profile manufacturers to install an optimum quality assurance system, i.e. quality flaws in profiles must be rapidly recognised in order to avoid a waste of expensive raw material.
The challenges in the plastics industry:
Special features of plastic profiles:
Demands on a measuring system
A measuring system for plastic profiles demands a sufficiently high measuring accuracy and reproducibility.
The solution is called PROMEX
PROMEX is a series of measuring systems which can be integrated into the extrusion line – surfaces and contours are checked in real time. Operation of promex is easy to learn, the system is configured modularly, it can be extended optionally, many interface links can be established and the system is not limited to single product features (shape, colour, material and size).
Your benefits with an automatic profile measurement:
Increasing demands by profile extrusion markets and particularly the plastics sector force profile manufacturers to install an optimum quality assurance system, i.e. quality flaws in profiles must be rapidly recognised in order to avoid a waste of expensive raw material.
The challenges in the plastics industry:
- High raw material prices & competitive alternative materials.
- The building sector asks for innovative profiles at low prices.
- New developments for raw materials: increased consumption of wood flower, recipe modifications, co-extrusion of special layers, processing of recycled material.
- Reproducibility of plastic profiles is difficult as many variables influence the process, e.g. temperatures change the profile geometry.
- Profile geometry and dimensions are difficult to measure but small tolerances must be adhered to.
Special features of plastic profiles:
- Variable profile shape
- Possibly strong deformation in some sections
- No reference line in some cases
- Measurement of small and partly very closely positioned contours
- Dimensional control which is difficult to effect with conventional measuring devices
- Different materials
- Surfaces with varying reflection
Demands on a measuring system
A measuring system for plastic profiles demands a sufficiently high measuring accuracy and reproducibility.
The solution is called PROMEX
PROMEX is a series of measuring systems which can be integrated into the extrusion line – surfaces and contours are checked in real time. Operation of promex is easy to learn, the system is configured modularly, it can be extended optionally, many interface links can be established and the system is not limited to single product features (shape, colour, material and size).
Your benefits with an automatic profile measurement:
- Reduction to one measuring system for all geometric dimensions
- Touch-free measurement reduces the danger of incorrect measuring results caused by mechanical contact
- Measurements which are difficult or impossible to effect with conventional measuring devices now become possible
- Shorter measuring times
- No subjective influence on measuring results caused by the line operator
- Documentation of measuring results with a conformity to standards
- An analysis of the extrusion process including the check on potential for improvement become possible
