The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Feb. 22, 2000
Sanyo Electric Co., Ltd., Osaka-Fu, JP;
Abstract
There are provided a nozzle clogging detection device for an electronic component-mounting apparatus, which has a simple construction and is capable of accurately detecting clogging of a vacuum nozzle and erroneous mounting of a vacuum nozzle different in diameter, and a nozzle clogging detection method therefor. A flow meter is arranged across a vacuum passage communicating between a vacuum pump and the nozzle hole of the vacuum nozzle, for measuring an actual flow rate of air drawn in through the nozzle hole. Clogging of the nozzle hole and erroneous mounting of the vacuum nozzle is detected by comparing the actual flow rate measured by the flow meter with a design flow rate of air to be drawn through the nozzle hole, the design flow rate of air being stored in advance.