Component Pickup Retry Control for Empty-Cavity Mounting Errors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Component mounting machines often perform meaningless retry operations when picking up components, leading to reduced productivity due to empty cavities or components not being present, which is not limited to suction nozzle and carrier tape combinations, affecting various types of component mounting tools and supply media.
Innovation Solution
A component mounting machine equipped with a component detecting section to determine the presence of components before pickup, a holding detecting section to verify if the component is being held, and a retry performing section to decide on retry operations based on detection results, thereby avoiding unnecessary retries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If retry operation is performed when component pickup fails, then component waste is reduced, but productivity decreases due to meaningless retries on empty cavities
Solution Approach 1:
The system performs preliminary detection to determine whether a component is present in the cavity before initiating the pickup operation. This preliminary action prevents meaningless retry operations on empty cavities, thereby maintaining productivity while still enabling retries when components are actually present but fail to be picked up.
Solution Approach 2:
The system uses detection results as feedback to control whether retry operations are performed. The detection section provides information about component presence, and the control section uses this feedback to decide on retry execution, avoiding wasteful retries on empty cavities while preserving valuable components for legitimate retries.
2Productivity
If component presence detection is performed before pickup, then meaningless retries are avoided, but device complexity increases
Solution Approach 1:
The detection section is designed to be universally applicable across different component types and supply media. The same detection mechanism works for various cavity configurations and component forms, reducing the need for multiple specialized detection systems and thereby limiting the increase in device complexity.
Solution Approach 2:
The detection section acts as an intermediary between the pickup operation and the control system. It provides essential information about component presence without requiring direct complex interaction between the pickup mechanism and control logic, simplifying the overall system architecture.
Data Source
AI summary
A component mounting machine including a component supply device to supply a component to a supply position; a component transfer device to pick up the component from the supply position and mount the component on a board; a component detecting section to detect whether the component is present at the supply position before or while the component is being picked up by the component mounting tool; a holding detecting section to detect whether the component mounting tool is holding the component following pickup; and a retry performing section to determine whether to perform a retry operation of attempting to pick up the component again using the component mounting tool based on a detection result of the component detecting section and a detection result of the holding detecting section, and to perform the retry operation in accordance with a result of the determining of whether to perform the retry operation.