Inspection of resin molded products Subsequently

Recently, for visual inspection of a cylindrical plastic molding,

IN ADDITION TO PCS, SOFTWARE, AND LIGHTING

Bring a rotating stage.

The customer has been using the service for about a week.

I had set the area camera to take about 15 segmented images/inspections while rotating the sides,

We are beginning to understand the problem after you have used it.

The color of the products varies even among good products.

There was a tendency for the color to change immediately after the molds were cleaned and after some time had passed.

Then, the range of good products will become wider even if the number of good registrations is increased.

The good range is determined by sampling the luminance (density) of the good.

A narrow range of good products means, for example, a luminance value of 100~110

On the other hand, a wide range of good products means, for example, a luminance value of 80~130

IF NG,

The former has a high detection capacity, while the latter is low.

The latter trend was observed in this case.

IF THE DIFFERENCE IN BRIGHTNESS BETWEEN NG AND NORMAL AREAS IS LARGE, THERE IS NO PROBLEM,

I HAD A NG THAT I COULDN'T PICK UP,

It was decided that it would be a little difficult to proceed with instrumentation.

In terms of operation, we can think of a way to separate the registration of good products by lot, etc,

If it is difficult to operate,

It is safer not to device it.

Eventually,

Whether the product is always stable and the same

The difficulty of the inspection always comes down to this.