Method and apparatus for selecting acceleration or deceleration of a substrate
US6118240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1998 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Feb 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K13/0069
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A board transfer unit for transferring a printed circuit board on which electronic components are mounted. The board transfer unit has sensors for detecting the length, width, and thickness of the board. The board weight is calculated based on the detected data from the sensors. The board transfer unit also receives information on types of components mounted on the board from a machine in the previous process. Optimal acceleration and deceleration rates are selected from previously prepared data based on the board weight and the types of components mounted in the previous process. Accordingly, the board transfer unit realizes the optimal board transfer corresponding to diversifying board weight and mounting conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.