Plastics production and processing
Thermography for injection molding processes
moldCONTROL is a thermography solution for recognizing quality fluctuations in injection molding production. The compact, industrial thermal imaging camera captures a thermal image of the component directly after the injection molding process. The software compares the infrared images associated with the component (actual) to stored references (target). The identified temperature differences provide the basis for a good/bad decision reported back to the handling system.
Two-sided thickness measurement
Depending on the respective measurement task, it is sensible to carry out a two-sided thickness measurement. Arranged opposite the material, two displacement sensors detect the thickness. This measurement arrangement is particularly suitable for high speed measurements and fluttering materials. Micro-Epsilon also offers sensors and turnkey systems for two-sided thickness measurements.
Recommended sensor technologyMeasuring and inspection systems for plastics
One-sided thickness measurement of films
In its sensor housing, the combiSENSOR combines an eddy current displacement sensor and a capacitive displacement sensor. This unique sensor concept enables one-sided thickness measurement of electrically non-conductive materials on metallic objects. Its field of application is the thickness measurement of plastic film or of plastic coating on metal plates. Connected to the sensor via a cable, the controller processes and calculates the signals in order to put them out via interfaces.
Defect recognition on worktops
Foreign bodies, uneven distribution of the adhesive or unevenness when closing may produce open joints between the top material and the sidebars. The scanCONTROL laser profile sensors check if there are open joints and detect their gap size.
Thickness profile measurement of strips and plates
The thicknessCONTROL measurement system is used for thickness measurement of plates and strip materials. Depending on the measurement task and materials, the head is equipped with different sensors that measure in a fixed track or in a traversing method. Comprehensive software packages and interfaces enable measured values to be recorded.
Recommended sensor technologyNon-contact inline profile thickness measurement of calenders (thickness 0.3mm to 18mm)
Temperature monitoring of thin plastic films
With blown film extrusion, non-contact temperature measurement is a difficult measurement task. Ambient radiation also penetrates thin films and distorts the intrinsic radiation of the films. The infrared CT-P3 and CT-P7 pyrometers only detect the infrared radiation emitted by the plastic films and ignore the penetrated ambient radiation. This is how high precision detection of the surface temperature is possible.
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Gap measurement of extruded plastic profiles
In the extrusion of high quality plastic profiles, adherence to tight manufacturing tolerances is crucial. For quality assurance, laser profile scanners from Micro-Epsilon are used. Thanks to the surface compensation, the scanners reliably detect the profiles of black rubber surfaces. For gap measurement, special software packages are available with which different parameters can be easily selected.
Surface defect detection of plastic attachments
Surfaces play an important role in the functionality and aesthetics of plastic components. Therefore, optical surface inspection is a central approach for 100% quality control. Deflectometer-based inspection systems from Micro-Epsilon inspect shiny surfaces and detect even the smallest of deviations. The defects found are evaluated and displayed in the 3D model.
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Inline color measurement of transparent films
As well as color fluctuations, streaks can occur during production. With translucent films, the film color is measured very accurately and quickly using the ACS7000 color measuring system together with the ACS3 transmission sensor.
Color measurement of extruded parts
In order to avoid defective production and to conserve resources during the extrusion of plastic products, it is crucial to recognize color deviations not just at the end of the process chain but already during the ongoing process. The accurate colorSENSOR CFO color sensors are used for color recognition in the process and transmit color deviations directly to the control system.
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Inline color measurement of plastic injection-moulded parts
In plastic injection moulding, the exact color shade of the products is important, as the color changes during cooling. To date, it has only been possible to measure random samples of cooled pieces. However, the colorCONTROL ACS inline color measurement system from Micro-Epsilon can 100% inspect the products as they are extracted from the mould.
Request download linksApplication "Inline color measurement of injection moulding parts" (PDF, 215 KB)
Temperature measurement for injection mould applications
Users of injection mould machines for plastics processing are facing increased quality requirements imposed by end-users, in particular for automotive applications. Because of this trend, the importance of online temperature control right after extrusion as a global quality attribute is growing.
Recommended sensor technologyThermal imager
Request download linksApplication "TIM 160 for injection moulding applications" (PDF, 172 KB)
Non-contact film thickness measurement
In film production inline thickness measurement guarantees constant product quality. Micro-Epsilon's KS5 combination sensor measures the thickness of films in a non-contact and thus wear free process.
Request download linksApplication "Non-contacting online layer-thickness measurement of foils" (PDF, 116 KB)
Blown film thickness
The thickness of blown films is an important aspect in terms of constant quality in blown film production. Partially strong thickness tolerances can occur for the production in doing so. The blown film system from Micro-Epsilon measures the profile of the film with or without contact directly after the extrusion nozzle. Located on a reversing frame, the system continuously traverses the film tube and provides the data to the host system for controlling the extrusion nozzle.