Poultry Breast Deboning Mandrel Orientation and Rotation

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Solution Overview

Problem

Existing automatic deboning systems for poultry breast caps require complex and maintenance-intensive processing stations due to mandrels being upside down, leading to suboptimal de-skinning results and increased floor space usage, as they are typically conveyed with the head end leading, which is not conducive to effective de-skinning from the tail end to the head end.

Innovation Solution

A method and system where mandrels are kept in an upright position except during de-skinning, with a conveying path in a horizontal plane, allowing de-skinning from the tail end to the head end, using a breast cutter with parallel cutting blades and a breast fillet remover to separate fillets efficiently, and incorporating a Maltese cross mechanism for rotating the mandrels to facilitate de-skinning and repositioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If mandrels are conveyed upside down through processing stations, then floor space is optimized, but processing complexity increases and maintenance requirements increase

Engineering Contradiction:
Improvefloor spaceVSAvoidprocessing station complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent inverts the conventional approach by conveying mandrels in an upright position rather than upside down. This reversal simplifies the processing stations while maintaining compact floor space through the vertical arrangement of processing stations along the conveyor path.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If mandrels are conveyed with head end leading, then conveyor operation is simplified, but de-skinning effectiveness decreases

Engineering Contradiction:
Improveconveyor operationVSAvoidde-skinning quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system dynamically changes the orientation of mandrels during conveyance. Mandrels are conveyed upright for most operations, then rotated to an inverted position specifically for de-skinning, and rotated back to upright position afterward. This dynamic repositioning optimizes both operational simplicity and de-skinning effectiveness.

Inventive Principle:
Principle #15Dynamics

3Reliability

If mandrels are kept in upright position throughout processing, then maintenance needs are reduced, but de-skinning from tail end to head end becomes difficult

Engineering Contradiction:
Improvemaintenance requirementsVSAvoidde-skinning operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary rotation of mandrels to the inverted position before the de-skinning operation begins. This preliminary action ensures that the mandrel is in the optimal orientation for effective de-skinning from tail end to head end, while maintaining upright position during other operations to reduce maintenance needs.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9259013B2Method and system for automatically deboning poultry breast caps containing meat and a skeletal structure to obtain breast fillets therefrom
Publication Date: 2016.02.16 FOODMATE
  • US9259013B2 patent drawing
  • US9259013B2 patent drawing
  • US9259013B2 patent drawing

AI summary

Method of and system for automatically deboning poultry breast caps containing meat and a skeletal structure to obtain breast fillets. The method includes providing a mandrel with a plane of symmetry in a vertical orientation and supporting a breast cap with its skeletal structure including a keel bone on top of the mandrel. The breast cap being held to the mandrel with the keel bone aligned with the plane of symmetry. By moving the mandrel through a conveying path extending through a substantially horizontal plane in a direction of travel it passes a cutting implement of a breast cutter engaging the meat along the keel bone. The cutting implement causes at least one incision along the area where the meat is attached to the keel bone and a breast fillet remover downstream of the breast cutter engages between the skeletal structure and the meat and separates the meat as a pair of single fillets from the skeletal structure. The arrangement is such that the mandrel moves through the conveying path with the plane of symmetry aligned with the direction of travel.