TIR Sleeve Measurement System
The TIR system is designed to measure the ‘3D landscape’ of sleeves and cylinders by using a laser to scan an adjustable grid pattern across and around the sleeve. With this information it is possible to know the condition of every sleeve that you have in inventory, which helps save valuable time in your press department. It is also possible to build a database to help track the condition of your sleeve inventory over time, when the last time it was measured, what the condition was at that time, which help you control your sleeve inventory and know when you need to replace. This technology is used in the pre-press department, or a place where your sleeves are demounted. The operator will periodically scan the sleeve, which produces a digital read out of the sleeve’s surface in the form of a spectrum view with different colors on how the depth or diameter of the sleeve is at each position by using a numerical minimum and maximum value of the diameter of the sleeve. It stores all the unique data of every sleeve in order to keep track of any irregularities.
Measuring the condition of sleeves
The ability to check the exact condition of each sleeve is essential for high-speed production with minimum pressure settings on the press. Worn out or damaged sleeves are easily detected, which prevents bad quality sleeve related downtime in the printing presses. It also helps to create an inventory of sleeves, which are fit for use. The operator can pre-set specific tolerances that define whether a sleeve is still usable or not. In the image portrayed here it’s visible how the TIR System measures the 3D surface of the sleeve, in which the blue spots indicate bulges on the sleeve’s surface and the red spots indicate the dents. Bulges, dents and other imperfections such as the loss of roundness of the sleeve can seriously harm the print quality. With the TIR, press down time due to worn out sleeves can be prevented.