Conveyor Surface Temperature Mapping for Shrink-Wrap Control
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Solution Overview
Problem
Conveyors in continuous processing devices often have temperature issues that affect the quality of processed articles, such as being too warm or too cold, leading to suboptimal results in processes like shrink-wrapping, where incorrect temperatures can cause energy inefficiencies or film defects.
Innovation Solution
A conveyor system equipped with temperature sensors and a temperature modification unit that adjusts the conveyor's surface temperature to a predetermined range by measuring and modifying the temperature along the processing path, ensuring optimal conditions for article processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conveyor temperature is not controlled, then the processing can be simplified, but the quality of processed articles degrades due to temperature fluctuations
Solution Approach 1:
The conveyor is divided into multiple temperature zones with individual temperature sensors and control units at spaced apart locations. Each segment can be independently monitored and controlled, allowing precise temperature management without requiring complete system complexity. This segmentation enables targeted temperature adjustment in specific areas while maintaining simpler control in other regions.
Solution Approach 2:
Temperature sensors continuously measure the conveyor surface temperature at multiple locations and provide real-time feedback to control units. This feedback mechanism automatically adjusts heating or cooling elements to maintain optimal temperature ranges, ensuring consistent article quality while using intelligent control rather than overly complex mechanical systems.
2Measurement precision
If temperature sensors are installed at spaced apart locations, then the device complexity is reduced, but the temperature measurement precision may be insufficient
Solution Approach 1:
Temperature sensors are strategically positioned at spaced apart locations where temperature variations are most critical, such as entering and exiting zones of processing equipment. Each sensor provides localized temperature data that is sufficient for controlling that specific region, avoiding the need for dense sensor coverage while maintaining measurement precision where it matters most.
Solution Approach 2:
Rather than installing sensors at every possible location, the system uses a partial sampling approach with sensors at key positions. This partial action provides enough temperature data to infer overall conveyor temperature trends and trigger appropriate control responses, achieving adequate measurement precision without excessive device complexity.
3Reliability
If the conveyor temperature is not maintained within optimal range, then energy consumption is reduced, but shrink-wrap film may not shrink correctly or may stick to the conveyor
Solution Approach 1:
The temperature control system activates heating or cooling elements in advance before articles enter the shrink-wrap zone, pre-conditioning the conveyor surface to the optimal temperature range. This preliminary action ensures that when articles and shrink-wrap film are introduced, the conveyor is already at the correct temperature, enabling proper film shrinkage without requiring continuous high energy consumption during the actual wrapping process.
Solution Approach 2:
The system dynamically adjusts the conveyor temperature parameter in real-time based on article type, environmental conditions, and process requirements. By changing the temperature parameter to match optimal values for different operations, the system achieves reliable shrink-wrap film behavior while minimizing energy consumption compared to maintaining a constant high temperature throughout.
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
Maintains the conveyor's surface temperature within an optimal range, enhancing the quality of processed articles by preventing energy inefficiencies and ensuring proper film shrinkage, while minimizing energy consumption and preventing film sticking.
Implementation Method 1
Temperature sensors mounted in the conveyor at spaced apart locations make temperature measurements of the contact surface of the conveyor at the spaced apart locations
Implementation Method 2
A temperature modification unit disposed along the conveyor path uses the temperature measurements to modify the temperature of the contact surface of the conveyor
Implementation Method 3
modify the temperature of the contact surface of the conveyor to within a predetermined range of temperatures
Data Source
AI summary
Conveying system and method for sensing and controlling the surface temperature of a conveyor transporting articles through a process that incidentally changes the temperature of the conveyor. The conveyor system includes a conveyor such as a transport belt having temperature sensors embedded in the belt at spaced locations along its length. Transmitters embedded in the belt transmit temperature readings made by the sensors to a remote controller. The remote controller controls a temperature modification unit in the belt's conveyor path that restores the temperature of the belt to an optimum range for the processing of the articles. The controller creates a temperature map of at least a portion of the conveyor path.