Fish Filleting Machine Adjustable Blade Gap Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fish filleting machines often result in significant loss of valuable fish meat due to inefficient cutting techniques, leading to mechanical breakdowns and process failures.
Innovation Solution
A machine with multiple filleting stations, including plane cut stations with adjustable gap control and band knife structures, designed to optimize cutting precision and minimize meat loss by dynamically adjusting the gap between cutting blades and using curved cuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rotating knife blades perform plane cuts to separate fillets from the vertebral column, then the cutting process is simple and fast, but relatively large amounts of valuable fish meat are cut off and removed with the skeleton
Solution Approach 1:
The patent replaces traditional rotating circular knife blades with band knives that perform curved cuts following the contour of the vertebral column. This curved cutting path allows the knife to separate fillets more precisely from the skeleton, removing only the necessary portions and preserving valuable fish meat that would otherwise be discarded with the bone structure.
Solution Approach 2:
The patent introduces adjustable gap control structures that modify the spacing between opposing cutting blades based on detected fish dimensions. By dynamically adjusting cutting parameters (gap distance, blade position) according to the specific fish size and shape, the system optimizes the cutting path to minimize meat loss while maintaining efficient processing speeds.
2Device complexity
If fixed gap between cutting blades is used, then the machine structure is simple, but the cutting precision cannot be optimized for different fish sizes
Solution Approach 1:
The patent transforms the static fixed-gap blade arrangement into a dynamic system with adjustable gap control. The gap between opposing cutting blades can be modified during operation based on real-time detection of fish dimensions, allowing the machine to adapt to varying fish sizes and shapes while maintaining precise cutting performance.
Solution Approach 2:
The patent incorporates detection mechanisms that measure fish dimensions and provide feedback to the gap control system. This closed-loop control enables automatic adjustment of the cutting blade positions to match the specific geometry of each fish, ensuring optimal cutting precision without requiring complex manual calibration.
3Manufacturing precision
If triangular cutting zone is created by angled knife blades, then cutting close to the vertebral column is improved, but large amounts of meat in the ventral part are still cut off and lost
Solution Approach 1:
The patent employs band knives with curved cutting paths that conform to the natural contour of the vertebral column, particularly in the ventral region. This curved approach allows precise separation close to the bone structure without creating the triangular waste zone produced by straight angled cuts, thereby preserving valuable ventral meat.
Solution Approach 2:
The patent dynamically adjusts cutting parameters including blade angle, gap distance, and cutting path curvature to match the varying geometry of the vertebral column along its length. This adaptive approach maintains high cutting precision near the bone while preserving meat in the ventral region where the column curvature differs.
Data Source
AI summary
A machine for filleting fish includes a filleting station with two circular, rotating cutting blades arranged to perform plane cutting of the fish. To increase yield, the cutting blades are movable towards or away from each other by a linear actuator.