Seidenader PI-B

 Inspection machine for liquid filled
 large vials and bottles

Particle inspection:

Each product is inspected in up to three particle inspection stations using the image
subtraction method:
1  Container and liquid are rotated at high speed.
2  Rotation of container is stopped, the liquid continues to move,
    particles move with the liquid.
3  The camera moves synchronized with the transport of the container.
4  The camera acquires a sequence of images.
5  The images are sent to the image processor and are compared
    to each other in an overlay image, pixel by pixel.

Objects which change their location (i.e. objects moving with the liquid) are identified as defects. Dust or light scratches on the container surface are not changing their position between the images and are therefore not rejected in this inspection. Using two or three particle inspection stations allow to vary the rotation speeds to detect lighter and heavier particles. The set points for rotation speed and brake point are stored together with the product inspection configuration (recipe) for each product; positioning drives adjust the rotation modules, sensors check the proper alignment and the rotation speed.

Cosmetic Inspection:

In addition to the standard particle inspection stations, the PI-B can be equipped with a
variety of camera stations to detect cosmetic functional defects.

Vials and bottles can be checked for closure defects, cracks and scratches.

Light reflection method: Concentrated light is sent through the container bottom. The camera, looking from the side detects light reflections scattered by the particle against a dark background.

Light transmission method:
Light is sent through the container side. The camera looking from the other side of the container detects shadows created by the particle.

Inspection of cap, neck and stopper, optional inkjet and OCR function

 Technical Data PI-B
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