Poultry Slaughter Rotary Knife Neck Guidance
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Solution Overview
Problem
Existing poultry slaughter devices face challenges in providing a reliable cut due to neck twisting caused by friction, leading to complex constructions with multiple rotary knives to avoid cutting vital structures.
Innovation Solution
A simpler construction using a single rotary knife that rotates to cut through both sides of the neck, combined with a cylinder that twists the neck to expose the veins and arteries, ensuring a reliable cut while avoiding the vertebra and other vital structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single rotary knife is used to cut the neck, then device complexity is reduced, but cutting reliability deteriorates due to neck twisting from friction
Solution Approach 1:
The patent applies dynamics by making the neck transport path movable through the contoured section that follows the rotary knife's rotation. This dynamic adaptation allows the neck to be guided along a path that compensates for twisting, enabling a single rotary knife to reliably cut both sides of the neck without requiring a fixed, complex multi-knife construction
Solution Approach 2:
The patent introduces a spatial dimension by creating a contoured transport path that follows the rotary knife's circular motion. This three-dimensional path adjustment allows the single knife to access both sides of the neck over time, transforming a two-dimensional cutting problem into a three-dimensional solution that reduces device complexity while maintaining reliability
2Reliability
If two rotary knives are used to cut both sides of the neck, then cutting reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a single rotary knife that performs the function of multiple knives through continuous rotation and the contoured transport path. The same knife cuts both sides of the neck at different moments, eliminating the need for multiple knives while maintaining cutting reliability on both sides
Solution Approach 2:
The patent merges the function of two separate cutting knives into a single rotary knife system. By combining the cutting action with the rotational movement and contoured guidance, one knife accomplishes what would traditionally require two stationary knives, thereby reducing construction complexity while preserving reliability
3Ease of operation
If the neck is allowed to twist freely, then ease of operation is improved, but manufacturing precision deteriorates due to inability to reliably expose veins and arteries
Solution Approach 1:
The patent applies dynamics by allowing the neck to rotate naturally while being guided along a contoured path that follows the rotary knife. This dynamic guidance system accommodates neck twisting movements while maintaining precise positioning relative to the cutting knife, ensuring veins and arteries are reliably exposed without rigid constraints
Solution Approach 2:
The contoured transport path acts as an intermediary between the freely moving neck and the rotary knife. This intermediate element guides the neck through a controlled rotational path, allowing natural twisting while maintaining the precision needed to expose vital structures for reliable cutting
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
This approach enhances the reliability of the cutting process by allowing a single rotary knife to effectively cut through both sides of the neck, reducing complexity and increasing the chances of a precise cut through veins and arteries while avoiding the vertebra.
Implementation Method 1
the neck tends to twist when it conveys along the track due to friction
Implementation Method 2
a cylinder may engage the bill and/or the head for forcing the bill against the transport direction to cause twisting of the neck in the first rotational direction
Data Source
AI summary
Slaughter devices for poultry and methods thereof, which may include a track having a first guide and a second guide to define a slit for guiding the neck of the poultry. A rotary knife arranged in the first guide for cutting a first vein. A cylinder arranged in the first guide upstream of the rotary knife, which rotates in a first rotational direction to allow twisting of the neck in a second rotational direction.