Foreign Object Sensor Test Conduit for Continuous Food Bagging
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Solution Overview
Problem
Existing food processing systems experience manufacturing delays and inefficiencies due to the need to stop and inspect metal detectors after inserting a piece of metal to ensure proper functioning, which disrupts the production process.
Innovation Solution
A food processing system with a foreign object sensor and a sensor testing conduit allows for the selective insertion and withdrawal of a sensor testing implement within the chute portion, enabling continuous operation without machine downtime by testing the sensor during normal production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a piece of metal is inserted into processed food upstream of a metal detector to test its functioning, then the sensor detection accuracy is ensured, but the processing system must be stopped resulting in manufacturing delays
Solution Approach 1:
The system separates the testing function from the main production flow by creating a dedicated test conduit that branches off from the main food processing chute. This allows testing operations to be performed independently without interrupting the continuous flow of food processing, thus resolving the contradiction between ensuring sensor reliability and maintaining manufacturing productivity
Solution Approach 2:
A test implement with metal portion is introduced as an intermediary testing object that travels through the test conduit rather than inserting metal directly into food products. This intermediary approach allows the metal detector to be tested with a controlled test object that can be easily inserted and removed from the test conduit without disrupting the main production line
2Object-affected harmful factors
If the processing system is stopped to remove the package containing the piece of metal, then the package contamination is prevented, but manufacturing delays occur
Solution Approach 1:
The system divides the testing pathway into a separate test conduit that is distinct from the main food processing chute. When a test implement is detected, only the test conduit needs to be cleared, not the entire production line. This segmentation allows the main processing system to continue operating without interruption while the test area is reset
Solution Approach 2:
The testing function is extracted from the main production flow and placed in a separate test conduit. This extraction allows testing operations to be isolated and performed independently, so that when testing needs to be interrupted or adjusted, it does not affect the continuous operation of the main food processing system
3Reliability
If routine testing of metal detectors is performed by inserting metal into food, then sensor malfunction is detected, but production efficiency is reduced
Solution Approach 1:
The system performs preliminary testing actions through the separate test conduit that can be quickly initiated and concluded. The test implement is pre-positioned in the test conduit ready for detection, allowing rapid testing cycles that do not interrupt the main production flow, thus maintaining both reliability monitoring and production efficiency
Solution Approach 2:
The main food processing operation continues uninterrupted while testing operations proceed independently through the test conduit. The useful action of food processing maintains continuity without the interruptions previously caused by stopping the line for testing, while the metal detector reliability is still monitored through continuous or periodic testing via the test implement
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 continuous operation of the food processing system by allowing on-the-fly testing of the foreign object sensor, reducing manufacturing delays and maintaining production efficiency.
Implementation Method 1
One such sensor is a metal detector that is used to ensure metal is not inadvertently disposed within a finished package containing foodstuff
Data Source
Figure 1
Figure 2
Figure 3A~3E
AI summary
A food processing system (10, 100) is disclosed. The food processing system (10, 100) includes a food scaling portion (12, 112), a food bagging portion (14, 114) and a chute portion (16, 116) connecting the food scaling portion (12, 112) to the food bagging portion (14, 114). The food processing system (10, 100) also includes a foreign object sensor (18, 118) arranged about the chute portion (16, 116). The foreign object sensor (18, 118) and the chute portion (16, 116) cooperatively form a foreign object sensing zone (25, 125) within a passage (72, 172) formed by the chute portion (16, 116) that extends along a portion of a length of the chute portion (16, 116). The food processing system (10, 100) also includes at least one sensor testing conduit (34, 134) extending through one or both of the food scaling portion (12, 112) and the chute portion (16, 116). An exit opening of the at least one sensor testing conduit (34, 134) is arranged within the foreign object sensing zone (25, 125). A method (200) is also disclosed.