Component Mounting Machine Rotary Head Alternating Tool Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing component mounting machines with rotary heads face challenges in improving throughput while protecting components and printed circuit boards, as increasing lifting and lowering speed or rotating speed is difficult without compromising component or board safety.
Innovation Solution
The component mounting machine employs two component holding tool operating devices positioned at specific angles on the circumference, allowing for alternating operation of component holding tools as the rotating body rotates by half the alignment pitch angle, enhancing throughput by enabling efficient component receipt and mounting on the printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the lifting and lowering speed of the component holding tool or the rotating speed of the rotating body is increased to improve throughput, then processing performance per unit time is improved, but component or printed circuit board protection is compromised
Solution Approach 1:
The patent divides the single component holding tool operation into two separate operations by providing two component holding tool operating devices (first and second devices). Each device operates on different component holding tools positioned at different angular positions, allowing parallel processing without increasing individual tool speeds beyond safe limits
Solution Approach 2:
The patent implements periodic alternating operation between the first and second component holding tool operating devices. The devices operate in a cyclical pattern where one device operates while the other prepares, creating a continuous periodic workflow that increases throughput without requiring higher instantaneous speeds
2Productivity
If the rotating body rotates by the full alignment pitch angle to position the next component holding tool, then all component holding tools are utilized, but the rotation amount and time required increase
Solution Approach 1:
The patent segments the rotation cycle into two phases: the first component holding tool operating device operates when the rotating body is at a reference position, and the second device operates after the rotating body rotates by half the alignment pitch angle. This segmentation allows the system to process two components per full rotation cycle
Solution Approach 2:
The second component holding tool operating device is positioned at half the alignment pitch angle in advance, allowing it to operate on the next component holding tool before the full rotation is complete. This preliminary positioning enables overlapping operations and reduces idle rotation time
Data Source
AI summary
Provided are a first component holding tool operating device which operates one component holding tool which is positioned at a first position set on one circumference among the plurality of component holding tools for holding and disengaging a component, and a second holding tool operating device which operates one component holding tool which is positioned at a second position set on the circumference among the plurality of component holding tools for holding and disengaging the component. The first position and the second position are set so that the second position is positioned in the middle of two adjacent component holding tools among the plurality of component holding tools when one of the plurality of component holding tools is positioned at the first position.