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The Seidenader SI is equipped with camera stations to detect particles, cosmetic and functional defects. The syringes are inspected in hanging position. Optionally an inspection in upright position is possible.
The syringes are supplied to the machine in hanging position and are picked by a system of starwheels for inspection of the fingergrip area. To avoid downstream breakage, defects can be separated immediately after this inspection. A transfer starwheel transfers the syringes to an inspection carousel equipped with grippers, designed to provide a centered presention of the syringes and allows rotation around their central axis. The grippers hold the syringes close to the flange area. In this starwheel the syringes are inspected for particles. Prior to inspection, the syringes are rotated at high speed to whirl up any particles. As soon as the syringes appear in front of the camera, the rotation is stopped. The liquid con- tinues to rotate and a sequence of images is taken. The images are compared to each other in the image processor. Objects which have shifted their location between the images are detected as particles. This inspection is re-peated in a second camera station. Depending on the products, a third inspection station for particles using a different light technique can be provided. After particle inspection the syringes are checked for sidewall cracks, fill level, plunger and needle defects.
After all inspections have been completed, defective products are separated from good product. Separation of up to three categories is possible, one defect channel is standard. Good products are transferred to the next process.
Advantages: |
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Avoiding transport screws allows precise material handling and economical "plug in" change parts |
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Continuous transport avoids unneccessary movement of the liquid, which might create air bubble or foam |
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In conformance with 21 CFR part 11 for vision processing and PLC operator interface |
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The machine is equipped with a reject verification system ("fail safe principle") to guarantee that containers which were recognized as defects will not pass as good products |
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The Seidenader Vision Inspection Module SVIM is used as a standard vision processor, equipped with SVObserver configuration software for quick and easy set up of the vision system parameters without any programming skills |
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Stroboscopic lights, which are longer lasting than permanent halogen
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Consecutive and sequential defect logic to stop the machine after configurable defect occurrence |
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Permanent monitoring of camera positioning and lighting, rotation speed and rotation time by PLC |
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Printout of all batch data, defects per category and good product counts |
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Relational database to compare complete batch status report inspection results |
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Documentation package for software and hardware qualification to support validation |
Inspection criteria: |
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Product: |
particles, fibres, glass, fill level |
Container: |
cracks, scratches, inclusions, dirt |
Flange: |
cracks, geometry |
Plunger: |
position, orientation, liquid between ribs, damage |
Tip/needle: |
presence, orientation, geometry |
Options: |
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Additional third camera station for particle inspection as well as further camera stations for detection of cosmetic and functional defects |
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Turning device for transportation and inspection of the syringes in a "needle up" position |
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Additional reject channels (up to three channels) for defective fingergrips or to separate defects by category |
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Printout of the configuration parameters for documentation of program changes |
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Extended documentation and validation support at customer's site available through trained specialists |
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Modem to assist maintenance, trouble shooting and training |
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Connection to SCADA system |
