Visual Inspection Machines

The visual inspection and sorting machine being supplied by us are manufactured at Italy. 

What is Artificial Vision?
  • It is a system based on a camera, which is the eye, and an image processor, which is the brain.
  • The camera incorporated in the machine is equivalent to the human eye, but much more powerful and sensitive. 
  • The images we “see” are perceived by millions of optic nerves and each of them “captures” a tiny fraction of the image and stores it.
  • In the  camera, the film quality is related to ASA and the more the number of “points”, the best the resolution of the picture.
  • In a camera the “frame” quality depends on the number of points used to store the image. These points are the pixels, which form the electronic film of the camera. 
  • The CCDs (Charge Coupled Devices) are usually small in size, 5x7mm for example, and contain thousands, millions of pixels depending on the the instruments quality.
  • The pixel when hit by light reflected off the surface of the specimen, generates electric tension which is transformed to a mathematical number.
  • This number is processed by the computer software back to the image of the sample being analysed. And that is how we come to the brain of the machine which is the processor and the software.
  • The last one is the interface between the image and the set of parameters/control tolerances. 
  • Now that we have our machine, which can analyse images or, at least, transform a picture into numbers, it is easier to imagine a software capable of mathematical comparing, applying filters as Laplace, Fourier, average calculation, derivatives, standard deviation, trigonometric equation.
  • In order to have a clearer and completer view of the system, we should try to optimize our image, by highlighting what we need to check. It is at this point that lighting comes into play. We have spoken of pixel, the minimum photosensitive unit and that is why light becomes so important. Different physics laws play a significant role, such as Snell, Cartesius, reflection, refraction, projection, etc. We understand that we can use different techniques and each technique depends on the visual control objectives. 
1. ET4: Visual Inspection machine for rubber and polymer finished products.
The measuring unit consists of a glass table and a tele-centric lens framed in aluminium profile.
The operator places the part to measure on the glass table. The camera together with the tele centric lens acquires the image without distortion. 
The collected data can be accessed by the operator through the graphic interface Software. 
These data are saved in a database and are available for the operator at any time. 
Type of check - Ring 
● Min.and Max ID 
● Min.and Max OD 
● Max difference between the max and the min ID 
● Min. Max. Chord 
● Average ID 
● Average OD 
● Average Chord 
● Multiple measurement (it allows to measure more parts within the framed field by comparing them with the set average tolerances). 
The machine has a frame field of 130 X 130 mm.
2. ET6: Visual Inspection and Thickness measuring machine.
The ET6 is very similar to the ET 4 machine with one additional feature. It also measures the thickness of the sample being inspected.
3. MIGG and MIGG 1500:
Automatic measuring system without contact for circular parts, deformed parts, with Laser technology.
Instrument accuracy according to DIN 3771.
Calibrated sample ring will be supplied for the machine adjustment with calibration certificate.

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