Mounting Head Speed Control for Narrow-Interval Component Placement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic component mounting devices face challenges in accurately mounting components with narrow interventional spaces without reducing productivity, as increasing speed to enhance production capacity leads to interference issues due to vibrations.
Innovation Solution
The solution involves controlling the mounting head's speed and movement speeds of suction nozzles to be lower when mounting components with narrow interventional spaces, using multiple independently movable heads and adjusting speeds based on the proximity of components to prevent interference, while maintaining optimal productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the speed of mounting electronic components is increased to enhance productivity, then the number of substrates produced per unit time increases, but the mounting head vibrates and interferes with adjacent components already mounted on the substrate
Solution Approach 1:
The patent applies dynamics by making the mounting head movable with adjustable speed. The control unit dynamically changes the movement speed of the mounting head based on the interval to adjacent components: using high speed for normal mounting to maximize productivity, and switching to low speed when approaching components with narrow intervals to prevent vibration-induced interference and ensure mounting accuracy.
2Manufacturing precision
If the interval to adjacent electronic components is narrow, then the mounting precision becomes difficult to maintain at high speed, but reducing the speed decreases productivity
Solution Approach 1:
The patent applies local quality by implementing different speed regimes for different spatial locations on the substrate. When the mounting head approaches components with narrow intervals (specifically when the interval is 0.2mm or less), the control unit locally reduces the speed to low speed for accurate mounting. For components with wider intervals, the system maintains high speed operation, thus ensuring precision where needed while preserving overall productivity.
3Manufacturing precision
If the suction nozzle is shaped to avoid interference with adjacent components, then mounting of narrow-interval components becomes possible, but the device complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the movement parameters (speed) of the mounting head rather than changing the physical shape of the suction nozzle. The control unit adjusts the speed parameter based on the interval to adjacent components, using low speed for narrow-interval mounting and high speed for normal mounting. This approach achieves the ability to mount narrow-interval components while keeping the nozzle design simple and avoiding increased device complexity.
Data Source
Figure 1
Figure 2~4
Figure 5~7
AI summary
A component mounting device (1) includes a mounting head (6B) that is movable in a horizontal direction and mounts a held component (C) on a substrate (P) and a control portion (111) that controls the operation of the mounting head, and the control portion is configured to perform control of making a speed of mounting, by the mounting head, a component to be closely adjacent to another component and to be mounted on the substrate such that an interval to an adjacent component is equal to or less than a predetermined threshold, on the substrate, smaller than a speed of mounting in a normal state in which the mounting head mounts a component, which is not the component to be closely adjacent to another component, on the substrate.