| 摘要 |
The present invention improves the usefulness of monitoring that is performed on the basis of images taken by cameras in a screen printer. A camera (150) is installed on a mask frame bracket (40) of a mask-holding device (16) and takes images of a mask (46) and squeegees (122) from the side. A camera (160) is installed on the section of a squeegee slide (70) between a pair of squeegees (122) and cameras (162, 164) are installed on both sides of the pair of squeegees (122). Imaging by the camera (150) confirms the attachment/non-attachment, variety, etc. of the squeegees (122). Imaging by the camera (160) acquires the residual amount of solder by acquiring the diameter of the solder roll. Imaging by the cameras (162, 164) detects unscraped solder remaining on the mask (46) or insufficient filling of solder into through holes and prevents the occurrence of printing failures by executing an alarm to the worker, automatic solder replenishment, etc. |
