Tray Trough Portion Detection Using Radar for Precise Packaging
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Solution Overview
Problem
Existing packaging systems struggle to maintain the correct size, shape, and position of sliced portions on packaging elements due to various influencing factors, leading to undesirable changes during transfer and packaging, which affects the visual appeal and sealing integrity.
Innovation Solution
A method and apparatus using electromagnetic radiation to determine the actual arrangement of portions on packaging elements, adjusting production parameters to ensure the portions meet predetermined target arrangements, and employing a sensor system below the packaging path to avoid mechanical interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera is positioned above the portions to record their position, then the position of portions can be determined, but the field of view is blocked by operators moving into the camera's field of view
Solution Approach 1:
The patent inverts the conventional camera positioning by placing the sensor system below the packaging element rather than above it. This allows the sensor to detect portions from the underside, completely avoiding the problem of operators blocking the field of view while maintaining accurate position measurement capability.
Solution Approach 2:
The packaging element itself serves as an intermediary medium that allows the sensor to detect portions without direct line-of-sight obstruction. The sensor detects portions through or alongside the packaging element, enabling measurement while operators work above the element without interfering with the detection path.
2Productivity
If portions are transferred between multiple conveyors including a downwardly inclined inserter, then portions can be delivered to the packaging element, but the shape and position of portions change undesirably
Solution Approach 1:
The patent implements a feedback control system where the sensor detects actual portion position and shape after transfer, and this information is fed back to adjust the production parameters of upstream units. This allows the system to compensate for shape and position changes introduced during conveyor transfers, maintaining manufacturing precision while keeping productivity high.
Solution Approach 2:
The system automatically adjusts production parameters such as cutting speed, portion spacing, and conveyor synchronization based on real-time sensor feedback. By dynamically changing these parameters, the system compensates for the distorting effects of multi-conveyor transfers and maintains desired portion characteristics.
3Manufacturing precision
If production parameters are adjusted to correct portion arrangement deviations, then portion placement precision is improved, but the system complexity increases
Solution Approach 1:
The system performs self-correction by automatically detecting its own errors and adjusting production parameters without external intervention. The sensor system continuously monitors portion placement and the control system automatically modifies upstream production parameters, making the system self-regulating and reducing the need for complex external control mechanisms.
Solution Approach 2:
The patent replaces complex mechanical adjustment mechanisms with an automated sensor-based control system. Instead of using mechanical devices to physically adjust portion placement, the system uses electronic sensing and automated parameter adjustment, simplifying the overall system while improving precision.
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
Ensures reliable production of portions with precise shape, size, and position on packaging elements, maintaining visual appeal and sealing integrity by automatically correcting deviations from target arrangements.
Implementation Method 1
A method using electromagnetic radiation to determine the actual arrangement of portions on packaging elements
Implementation Method 2
employing a sensor system with transmitters and receivers operating in the radar range to correct deviations in real-time
Data Source
AI summary
In order to ensure that portions are visually appealing, i.e.,centered,have uniform slice spacing in a longitudinal direction and do not differ too much in a transverse direction, andin particular do not rest on a sealing edge of a trough belt in its trough, the corresponding portion arrangement on a packaging element is, as is known, determined directly in a packaging machine from above by means of a camera and if a deviation from a target arrangement is too great, production parameters in upstream units of the packaging machine are adjusted, i.e., across a gap between a portioning belt and the packaging machine. According to the disclosure, the actual arrangement of the portion is determined from below the packaging element, in particular the trough, and through said the packaging element by means of radar radiation.