Automatic cold adhesive measurement appts. - monitors damping effect on rollers to which adhesive is applied

摘要

Two rollers (3, 4) of dia. about 60 mm and length about 120 mm are mounted in supports (1, 2) and are rigidly attached to driving gear wheels (5, 6). One roller (3) is connected to a drive (10) by way of an elastic coupling (7). The bearings (8, 8a) of the indirectly driven roller are mounted in teh support by means of micrometer screws (9, 9a) so that the separation of the rollers can be varied. The drive motor (10) has a linear torque/drive voltage characteristic and its speed can be monitored by a photo-electric measuring device (11). With the rollers at a predetermined spacing, and driven at a known speed, a measured quantity at adhesive is applied to one of the rollers and the change of speed measured on a recorder (16).