Shredder Load Cell Weight Measurement for Waste Bin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shredders lack the capability to accurately measure the weight of shredded waste accumulated in the waste container, making it difficult to determine when the waste is full and requiring collection.
Innovation Solution
A shredder equipped with a weight measurement section that includes a load cell and a circuit board, positioned under the bottom plate portion and waste box, allowing for precise measurement of the weight of shredded pieces along with the weight of the bottom plate and waste box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a compression function is added to the shredder, then the shredded waste can be compacted to save space in the waste container, but the weight of the shredded waste becomes difficult to estimate accurately
Solution Approach 1:
The patent replaces visual estimation and optical detection methods with a load cell-based weight measurement system. The load cell directly measures the weight of the shredded waste in the waste container, providing accurate weight data regardless of whether the waste is compressed or uncompressed. This substitution of measurement methodology resolves the contradiction by enabling both compression for space savings and accurate weight measurement.
2Difficulty of detecting and measuring
If optical detection is used to measure the volume of shredded waste, then the volume can be detected, but the weight cannot be accurately estimated due to compression of the shredded waste
Solution Approach 1:
The patent replaces optical detection methods with a load cell-based weight measurement system. The load cell directly measures the weight of the shredded waste, providing accurate weight data regardless of volume compression. This substitution eliminates the need to convert from volume estimation to weight estimation, directly resolving the measurement accuracy problem.
3Loss of time
If the shredded waste is compressed to delay collection, then the waste can be retained longer in the container, but the quality of the shredded pieces deteriorates for recycling purposes
Solution Approach 1:
The patent implements a feedback system using the load cell to continuously monitor the weight of the shredded waste in the container. When the weight reaches a predetermined threshold indicating the container is full, the system automatically triggers the ejection mechanism to remove the waste. This feedback-based approach allows timely collection based on actual waste quantity rather than volume compression, maintaining shredded piece quality while optimizing collection timing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate determination of the weight of shredded waste, preventing delayed collection by avoiding compression of the shredded pieces, which improves the quality and ease of recycling.
Implementation Method 1
a weight measurement section 50 which is disposed under the bottom plate portion 35 and measures a weight of the shredded pieces accumulated in the waste box 11
Data Source
AI summary
A shredder includes: a shredding section that shreds paper into shredded pieces; a waste box that stores the shredded pieces; a holding section that includes a bottom plate portion on which the waste box is mounted; and a weight measurement section that is disposed under the bottom plate portion and measures a weight of the shredded pieces accumulated in the waste box, in which the weight measurement section measures the weight of the shredded pieces together with a weight of the bottom plate portion and a weight of the waste box.