Sacmi CVS Series, Техническая документация инструкция

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ADJUSTMENTS 7
7-3
004AZ011B
7.1.3 PROCEDURE FOR CHECKING PRODUCT INSPECTION
The following are needed to carry out this test:
- at least ten samples of each defect the vision system has to detect and reject;
- at least one hundred good quality sample products, in any case more good quality samples have to be provided
than defective ones, the percentage should be approximately 10% defective products and 90% good quality ones.
The samples should be selected as follows:
- they should all be produced on the line on which the vision system is installed and be for the same product;
- the defects have to be real defects that may be produced during production and not simulated with tools or
markers;
- the defects have to represent a panorama of all defects that may be found in the production line for the product in
question.
To aid in identifying the products, the defective products should be marked in an area not inspected, for example the
side opposite the one used for inspection.
Proceed as follows:
1 Stop the production run and empty the conveyor belt.
2 Turn on the vision system and select the correct inspection configuration.
3 Use two empty containers, one for defective products and the other for good quality ones, to collect the products
on the conveyor.
4 Mix together the prepared defective samples and good quality ones and feed them to the vision system. The
normal operating speed and spacing between the pieces should be maintained.
5 Once the last product has been inspected, examine the results obtained, note how many and which:
- good quality samples were rejected, i.e. number of false rejects;
- defective samples were not rejected, i.e. number of false good quality pieces.
Repeat the procedure, writing down the results as indicated in step 5.
The test procedure has provided positive results if the number of false rejects and false good quality pieces fall within
the standard acceptable for that particular product.
On the other hand, if the results are not satisfactory, locate the trouble, remedy it and then repeat the procedure.
7.1.4 PROCEDURE FOR CHECKING VISION SYSTEM OPERATION
This procedure should be carried out from time to time to verify that the entire vision system works efficiently.
Then proceed as directed below:
- perform the procedure as indicated in this chapter, paragraph PROCEDURE FOR CHECKING THE CAPTURE
AND EJECTION DEVICES;
- perform the procedure as indicated in this chapter, paragraph PROCEDURE FOR CHECKING THE CAPTURE
AND EJECTION MECHANISM;
- perform the procedure as indicated in this chapter, paragraph PROCEDURE FOR CHECKING PRODUCT
INSPECTION.