Fish Gut Removal Device with Segmented Membrane Blades
Solution Overview
Problem
Existing gut removal devices for fish bodies with heads cut off face challenges in accurately peeling off the peritoneal membrane due to its curved shape and narrowing abdominal cavity, often causing damage to the fish meat and inefficiencies in gut removal, leading to operational stoppages and reduced work efficiency.
Innovation Solution
A method and device featuring a gut removal member with paired membrane separation blades and side separation blades that enter between the peritoneal membrane and fish meat inner wall, tilting to apply a uniform peeling force and shaking off the membrane with the help of the gut weight, while an abdominal cavity widening member ensures the membrane can be peeled and guts removed efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a membrane separation blade with inverted-U shape is used to peel off the peritoneal membrane, then the guts can be removed along with the membrane, but the blade cannot accurately follow the curved peritoneal membrane and damages the fish meat
Solution Approach 1:
The single inverted-U shaped membrane separation blade is divided into multiple separate blades (first membrane separation blade and second membrane separation blade) positioned at different locations. Each blade handles a specific section of the peritoneal membrane, allowing them to follow the curved shape more accurately while preventing any single blade from engaging too deeply with the fish meat.
Solution Approach 2:
A guide member is introduced as an intermediary component that carries the vertebra and guides the membrane separation blades along the curved peritoneal membrane. The guide member ensures the blades follow the natural curvature of the membrane without forcing them into positions that would damage the fish meat.
2Productivity
If the membrane separation blade enters deep along the lower surface of the vertebra to peel the peritoneal membrane, then the membrane can be removed, but the blade damages the fish meat due to the narrowing abdominal cavity
Solution Approach 1:
The membrane separation function is segmented into multiple blades positioned at different depths and locations. This allows the peeling action to be distributed across several points rather than concentrated at one deep insertion point, reducing the risk of any single blade damaging the fish meat in the narrowing abdominal cavity.
Solution Approach 2:
Instead of using one blade that must penetrate deeply to reach the peritoneal membrane throughout the entire abdominal cavity, the invention uses multiple blades that perform partial peeling actions at different sections. The combined effect of these partial actions achieves complete membrane removal without requiring any single blade to engage excessively deep into the narrowing cavity.
3Manufacturing precision
If the peritoneal membrane is peeled off accurately, then the guts can be removed, but the guts remain hooked on the membrane separation blade and prevent operation of the next fish body
Solution Approach 1:
The membrane separation function is segmented into multiple blades positioned at different depths and locations. This allows the peeling action to be distributed across several points rather than concentrated at one deep insertion point, reducing the risk of any single blade damaging the fish meat in the narrowing abdominal cavity.
Solution Approach 2:
Instead of using one blade that must penetrate deeply to reach the peritoneal membrane throughout the entire abdominal cavity, the invention uses multiple blades that perform partial peeling actions at different sections. The combined effect of these partial actions achieves complete membrane removal without requiring any single blade to engage excessively deep into the narrowing cavity.
Data Source
AI summary
A method and apparatus for removing guts of a fish body, the method includes: transferring a fish body A, with a head cut off and removed, by a transfer device and cutting open the abdomen thereof with an abdominal blade on the way of transfer; transferring the fish body to a gut removal member and causing membrane separation blades, provided at an upper end portion of the gut removal member, to enter in between a peritoneal membrane portion on both sides of the vertebra and a fish meat inner wall on a head cut-off section of the fish body; swinging the gut removal member downwardly with its lower end portion as fulcrum to tilt the membrane separation blades from the horizontal state and peel off the peritoneal membrane portions from the fish meat inner wall; and shaking off downwardly the guts adhered to the peritoneal membrane portions.