Rotary Head Nozzle Imaging Control for Mounting Efficiency
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Solution Overview
Problem
Existing electronic component mounting devices face inefficiencies in imaging processes due to non-adjacent nozzle positions and potential interference, particularly when suction nozzles are not aligned with pre-imaging or post-imaging positions.
Innovation Solution
An electronic component mounting device with a rotary head featuring multiple nozzle holders on a circumference, a lifting and lowering mechanism, and an imaging section that images suction nozzles at pre-imaging and post-imaging positions, with a control system that adjusts imaging processes based on job data to optimize nozzle positioning and reduce control steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the suction nozzle is imaged at pre-imaging and post-imaging positions, then imaging accuracy is improved, but the number of control steps increases and efficiency deteriorates
Solution Approach 1:
The patent combines multiple imaging operations into a single control step by utilizing the rotary head's natural rotation to position different nozzle holders at pre-imaging and post-imaging positions simultaneously. This merging of operations maintains imaging accuracy while reducing the total number of control steps required.
Solution Approach 2:
The system performs preliminary positioning of nozzle holders to pre-imaging positions during the rotary head's normal rotation sequence, so that when imaging is required, the nozzles are already in the correct positions. This eliminates the need for additional positioning steps and maintains efficiency.
2Measurement precision
If the suction nozzle is positioned at pre-imaging position for imaging, then imaging is performed, but additional positioning steps are required when the next nozzle is not adjacent, reducing efficiency
Solution Approach 1:
The patent utilizes the dynamic rotation of the rotary head to automatically bring different nozzle holders to pre-imaging and post-imaging positions in sequence. This dynamic positioning eliminates static repositioning steps and allows continuous, efficient imaging operations without additional time loss.
3Productivity
If multiple nozzle holders are disposed on the rotary head, then mounting capacity is improved, but coordinating imaging across multiple nozzles increases control complexity
Solution Approach 1:
The patent implements a universal control approach where the same control logic and imaging section serve all nozzle holders on the rotary head. The imaging section can image any nozzle holder at pre-imaging or post-imaging positions using standardized control steps, reducing overall control complexity despite increased mounting capacity.
Data Source
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AI summary
An object is to provide an electronic component mounting device and a control method capable of efficiently performing imaging. In an inspection optimization process, due to a pre-imaging process or a post-imaging process being executed and a control step in which a lifting and lowering process is executed in the same control step, since a number of control steps is reduced as compared to providing a control step for only the pre-imaging process or the post-imaging process, it is possible to efficiently execute the process.