Matsushita Electric Industrial Co., Ltd.

Noboru Nishikawa

Takeshi Kuribayashi

Akihiko Wachi

Nobuyasu Nagafuku

Hiroki Yamamoto

Hiroyoshi Saito

This invention provides an electronic component mounting method capable of effectively utilizing a self-alignment effect even if a mounting interval of electronic components is small. This method includes the steps of detecting a printing position of a solder paste on the circuit board and mounting an electronic component. When a solder paste on a circuit board having a land formed thereon is printed and an electronic component is mounted, the printing position of the solder paste of the circuit board is detected by a printing position detecting device included in an inspecting apparatus. Then, the electronic component is mounted by using the detected printing position of the solder paste as a reference by an electronic component mounting apparatus.

Method for mounting an electronic component

The present invention relates to a control method for improving the productivity of a screen printer for an electronics-mounting machine. Thus, a screen printer according to this invention uses a recognition camera to inspect the results of printing of a circuit board concurrently with a cleaning operation of the rear surface of a screen, thereby enabling the effective use of time. This screen printer also enables cream solder to be automatically supplied to reduce the operation time by determining whether the next screen to be used is unused. During automatic screen replacement, this screen printer enables a desired screen stored in the corresponding stocker to be automatically specified in order to replace the current screen in response to a selected NC program.

Method for controlling screen printer

A belt-like screen carrying a row of printing patterns is held between two roller screen holders. The printing patterns are advanced one by one to a printing position by the rotation of the roller screen holders. This allows the printing patterns to be changed from one to another. Frames are provided for locking and unlocking the printing patterns at the printing position. The completion of a run of printed circuit boards can be monitored to automatically change the printing patterns.

Growing community of inventors

Yamanashi, Japan

Noboru Nishikawa