Press Die Load Detection with Automatic Power Cutoff
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Solution Overview
Problem
Load detection devices in press-molding machines consume excessive electricity when dies are stored in a closed state, leading to shorter battery life and increased operational complexity due to the need for manual power switching.
Innovation Solution
A load detection device with a controller that automatically cuts off electricity supply to the detector and wireless transmitter after a predetermined time of continuous closed state, ensuring power conservation during non-operating periods and eliminating the risk of manual error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the load detection device continuously operates to detect pressing load, then measurement precision is improved, but use of energy increases and battery life decreases
Solution Approach 1:
The load detection device operates periodically rather than continuously. The controller activates the detector and wireless transmitter only during press-molding operations, and turns them off during storage periods when dies remain closed between operations. This periodic operation maintains measurement precision when needed while dramatically reducing electricity consumption during non-operational periods.
2Use of energy by moving object
If a power switch is provided to manually turn off power during storage, then use of energy is reduced, but device complexity increases and ease of operation decreases
Solution Approach 1:
The load detection device automatically manages its own power consumption without requiring manual intervention. The controller monitors the operational state of the dies and autonomously activates or deactivates the detector and wireless transmitter based on whether press-molding is in progress or storage mode, eliminating the need for manual power switches and reducing operational complexity.
3Ease of operation
If wireless transmission is used to eliminate wiring, then ease of operation is improved, but use of energy increases due to constant standby for wake-up signals
Solution Approach 1:
The wireless transmitter operates periodically only when needed during press-molding operations rather than maintaining constant standby mode. The controller deactivates the wireless transmitter during storage periods, eliminating continuous energy consumption associated with listening for wake-up signals while maintaining wireless communication convenience during actual operations.
Data Source
AI summary
A load detection device includes a detector, a wireless transmitter, a power source, and a controller. The load detection device is provided in dies that includes a first die and a second die. The load detection device is installed on at least one of the first die and the second die and configured to detect whether the first die and the second die are in a closed state. The controller is configured to execute an electricity cutoff process of stopping electricity supply from the power source to the detector and the wireless transmitter when the closed state of the first die and the second die has continued for a predetermined time.