There is no question that the human eye is a truly amazing part of your body; however, sometimes it needs a bit of help. This is especially true when you have press speeds that reach as much as 1,000 fpm. At this rate human error comes in to play and operators will have an extremely difficult time finding defects and other print blemishes on the web if it was not for the integration of a print inspection system. However, before you select an inspection system, there are a few things to consider.
Do you know the difference between the inspection systems that are available currently for the printing industries?
Right now the market is filled with a number of different inspection options. System benefits, advantages and features can be as different as the total amount of capital that it takes to invest in this type of inspection technology. Some of the choices that are available include machine vision type systems; high-intensity strobes; rotating mirrors; and human eye. You can also select the type of vision based machine from the entry level models to the automated midrange models; this decision will be based on your particular needs.
When you begin considering different types of vision systems, you will also be able to select between the machines offering 100 percent and samples. The sampled uses a type of strobe arrangement, which is capable of a very fine inspection. These systems are usually used for preventative control where the defects are able to be detected prior to becoming serious. The drawback of this option is the fact that sporadic defects are often not caught. A one hundred percent system will use a type of line camera and will have less sensitivity than the sampled systems. These are ideal for finding sporadic defects and typically used for inspection rewinds.
It is also important to know the difference in an automatic inspection solution and a viewer. The simple viewer will capture an image and then monitor what is captured, and an automatic inspection system will automatically analyze the captured image. At this point it will detect any print defects that are present.
When you begin searching for vision systems for inspection purposes, considering all of the factors and options available is crucial. With the information here, this should not be a problem in determining the proper type of equipment for your business needs.
