Power Supply Control for Tape Feeders During Setup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing power supply control systems for electronic component mounting machines face challenges during setup changing work, where the consumption current exceeds the output capacity, leading to a high risk of overcurrent, especially when multiple tape feeders operate simultaneously, potentially causing damage to the internal or external power supply devices.
Innovation Solution
A power supply control device and method that monitor and manage the consumption current of each tape feeder, transitioning specific feeders from an operation state to a stop or standby state when the total consumption current exceeds the output capacity, thereby reducing the overall current demand and preventing overcurrent situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple tape feeders operate simultaneously during setup changing work, then the productivity and ease of operation are improved, but the consumption current exceeds the output current capacity of the power supply device, causing overcurrent risk
Solution Approach 1:
The power supply control device dynamically adjusts the power supply state of each tape feeder based on real-time current consumption monitoring. When overcurrent is detected, the system transitions feeders from operation state to standby or stop state adaptively, allowing multiple feeders to operate simultaneously when possible while preventing overcurrent conditions
Solution Approach 2:
The system changes the operational parameters of tape feeders by switching between operation state, standby state, and stop state based on current consumption levels. This parameter adjustment allows the system to optimize between productivity and power supply safety by controlling which feeders remain active during setup changing work
2Adaptability or versatility
If the output current capacity of the power supply device is increased to support multiple simultaneous operations, then the adaptability and ease of operation are improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The power supply system is segmented into multiple independent control channels, each managing individual tape feeders. The control device monitors and manages current consumption for each feeder separately, allowing selective activation based on available current capacity rather than requiring uniform high capacity for all feeders
Solution Approach 2:
The power supply control device automatically monitors current consumption and manages the operational states of tape feeders without external intervention. The system self-regulates by transitioning feeders between operation, standby, and stop states based on real-time current capacity availability, eliminating the need for manual power management
3Reliability
If the consumption current is strictly controlled to prevent overcurrent, then the reliability is improved, but the ease of operation and productivity during setup changing work are reduced
Solution Approach 1:
The power supply control device implements continuous feedback monitoring of current consumption from each tape feeder. Based on this feedback, the system automatically adjusts the operational state of feeders to maintain current within safe limits while maximizing the number of simultaneously operating feeders, thus preserving ease of operation during setup changing
Data Source
Figure 1
Figure 2
Figure 3
AI summary
According to the present invention, there is provided a power supply control device (2) that controls consumption currents that are supplied from power supply devices (41, 42) in a component supply device (1) in which multiple tape feeders (10) are replaceably installed, the device including: a total consumption current measuring section (21) that obtains, based on measurement, a total consumption current (Itot) by adding actual consumption currents which are supplied to a plurality of tape feeders; and an overcurrent protection section (24) that causes a specific tape feeder, which is in an operation state, to transition to a stop state or a standby state, in a case of an overcurrent state where the total consumption current exceeds an output current capacity (Icap) of the power supply device. Accordingly, even though the overcurrent state occurs during setup changing work in which the multiple tape feeders can operate, the overcurrent state is rapidly canceled, and thus a protecting function is improved.