Mounter Head Interference Prevention via Height Detection
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Solution Overview
Problem
In mounter systems, the movement distance of the mounting head in the vertical direction needs to be minimized to reduce work time and prevent interference between the mounting head and the nozzle tray during exchange operations, which is challenging due to varying shapes and sizes of mounting heads, nozzle trays, and suction nozzles.
Innovation Solution
A mounter with a mounting head having identification information, a storage section for exchangeable component holding sections, and a detection system to determine potential interference based on head identification and height information, allowing for controlled operation to prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vertical movement distance of the mounting head is reduced to decrease board production time, then productivity is improved, but the risk of interference between the mounting head and nozzle tray increases due to varying shapes and sizes
Solution Approach 1:
The system performs preliminary detection of the nozzle tray height and mounting head type before the actual mounting operation. The detection section measures the vertical position of the nozzle tray, and the control section uses this information in advance to determine the safe movement range of the mounting head, preventing interference before it occurs
Solution Approach 2:
The detection section provides real-time feedback on the vertical position of the nozzle tray and the type of mounting head being used. The control section continuously adjusts the mounting head's movement range based on this feedback, ensuring that the reduced vertical movement distance does not cause interference with the nozzle tray
2Productivity
If the mounting head and nozzle tray are made compact to reduce vertical movement distance, then productivity is improved, but the ability to accommodate different types of mounting heads and nozzle trays is reduced
Solution Approach 1:
The system changes the parameters of the mounting head's movement range based on the detected nozzle tray height and mounting head type. The control section adjusts vertical position limits, movement speed, and stopping positions dynamically to accommodate different combinations of mounting heads and nozzle trays while maintaining compact dimensions
Solution Approach 2:
The detection and control system is designed to be universal, accommodating multiple types of mounting heads and nozzle trays with varying shapes and sizes. The system can identify and adapt to different configurations, making the mounter versatile while maintaining optimized vertical movement distances for each configuration
Data Source
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AI summary
A mounter capable of curtailing interference between a mounting head that has a component holding section, and an exchange-use component holding section and a storage section that holds the exchange-use component holding section. A controller of the mounter reads head identification information for identifying the mounting head from the mounting head. Also, different quantities of protruding sections 93D are formed on nozzle tray 93 in accordance with the height in the Z-axis direction. Also, pressure switches 99 that are pressed by protruding sections 93D so as to turn on and off are provided on loading plate 98 on which nozzle tray 93 is loaded. By this, the controller is able to determine whether interference will occur between the mounting head and nozzle tray 93 based on the detection signal of the pressure switches 99 before the mounting head is moved.