Frequently arising problems of production:

- Incorrect adjustments of sheets can cause discrepancies of several millimetres in position between print to structure
- These discrepancies can result in unattractive appearance of the unfolded cardboard boxes
- Complaints boost production costs and decrease customer satisfaction

PTS - Print to structure measuring
measurement of print to structure register on flat ged cutter

Hardware

high resolution ccd-camera, installed in housing

industrial PC with 15’’ TFT touch screen monitor

linear moving unit to adjust the camera position

automatic positioning of the camera with a
stepping motor (optional)

illumination, installed in a protection tube

aluminium panel (contains all control
components)

strong fixing system to fix the control enclosure
close to the machine

Software

userfriendly windows surface

standard operating system Windows XP

displays the actual print tag with actual position
and the default position

teach-in feature to adjust all settings to the new
production job

seperate limits for x- and y-deviation turnable

size control of the print tag to identify an
incorrect tag

counter for total, good and faulty sheets

average and standard deviation for x- and
y-deviation

faulty sheet pointer to find quickly the faulty
sheet in the stack

diagram for x- and y-deviation (projected)

program surface changeable to your language

Properties

realisation of the measuring over a printed tag on
the grab margin (no demage of the print)

independent of printed color (good contrast
enough)

accuracy of the system +/- 0,1 mm

performance: maximum 12.000 sheets per hour
(please ask for major performance)

optical decoupled faulty signals to connect a
paper-strip inserter or a message system

remote access software available

demoversion on CD available (with authentic
production parameters)

Troubleshooting with PtS - Print to Structure Measuring:

The PTS-System operates a print to structure measurement. Incorrect sheets generate an error signal. This error signal can be used to stop the machine or inform the machine operator to separate out a sheet, by initiating an optic or acoustic signal.

The following figure shows an overview of the operating mode of the print to structure system. The camera takes a picture of the printer's imprint, which is printed on the hook's edge. This picture is taken during the machine stop for separation of good and waste.

An industrial PC with touch-screen monitor forms the heart of the system. This industrial PC is integrated in a strong aluminium shell together with the complete control electronics. As it is attached to a turnable restraint system the operating personal can choose any favoured position of the monitor.

The software enables the operator to supervise the whole production process. By displaying the current picture, the adjustment of the printer's imprint can be observed. Must-values for the coordinates and limits of maximum discrepancies can be set. Statistic values such as average and standard deviation give fast overviews of the quality of a process. Faulty sheets can be identified fast by a simulated deck of sheets that indicates the exact position of flawed sheets. Therefore you can deliver your customers with a hundred per cent accurate products.