Kinematic mechanism for moving the pad in a pad printing machine

摘要

A description is given of a kinematic mechanism for moving the pad (26) in a pad printing machine (10) with mobile cliché (20), wherein the cliché (20) is carried by a carriage (16) mobile in a horizontal guide (14) of the frame (12) of the machine and the pad (26) is carried by a rod (24) mobile in a vertical guide (22) to be moved between a high position (L) of cycle start, an intermediate position (L1) of taking of the image from the cliché (20) and a low position (L2) of depositing of the image on the object to be printed, the kinematic mechanism comprising a mobile gear (60) rotating around a fixed gear (58), being hinged eccentric in (62) on the mobile gear (60) a connecting rod (64) whose other end is hinged to the pad-cariying rod (24), the kinematic mechanism being such that the connecting rod pivot (62) occupies the same angular positions every two turns of the mobile gear (60) in relation to the fixed gear (58) with ratio between mobile and fixed gear of 2:1.