Dual lane toaster
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Solution Overview
Problem
Conveyor toasters are limited in their ability to toast a variety of bread products efficiently due to fixed output and the need to complete one toasting cycle before starting another, and they struggle with accommodating elongated or oblong bread products, leading to reduced flexibility and throughput.
Innovation Solution
A dual-conveyor toaster system with independently operable conveyors and heat sources, allowing for simultaneous toasting of different bread products at varying speeds and temperatures, and a graphical user interface for customizable toasting recipes, along with a design that accommodates elongated products by spacing heat sources closer than conveyors, ensuring even heating across the width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single conveyor toaster is used, then the structure is simple, but the productivity is limited due to sequential toasting cycles
Solution Approach 1:
The toaster is divided into multiple independent conveyor systems (first conveyor, second conveyor) that can operate simultaneously. Each conveyor has its own heat source and control system, allowing parallel toasting operations to increase throughput while maintaining manageable complexity through modular design.
Solution Approach 2:
Multiple conveyor toasting systems are merged into a single integrated toaster unit with shared housing, control system, and coordinated operation. This combines the productivity benefits of parallel processing while consolidating control functions to manage device complexity.
2Adaptability or versatility
If conveyors operate at fixed speed, then the control system is simple, but the adaptability is reduced for different bread products
Solution Approach 1:
The conveyor speeds are made dynamically adjustable through independent control systems for each conveyor. This allows the toasting process to be adapted for different bread products, sizes, and toasting requirements while maintaining a relatively simple control architecture through standardized control modules.
Solution Approach 2:
The system allows changing operational parameters (conveyor speed, heat source intensity) to accommodate different toasting needs. By enabling parameter adjustment rather than requiring physical reconfiguration, the system achieves high adaptability with moderate control complexity.
3Area of stationary object
If heat sources are positioned close together, then the device footprint is reduced, but the heating uniformity across wide bread products deteriorates
Solution Approach 1:
Each heat source is positioned to provide localized heating optimized for its specific conveyor lane. The heat distribution characteristics are tailored to the local requirements of each toasting zone, ensuring uniform heating across wide bread products even when heat sources are positioned close together in the overall device footprint.
Solution Approach 2:
The heating system addresses width-based heating uniformity issues by introducing control in the time dimension through variable conveyor speeds. By adjusting the residence time of bread products in each toasting zone, the system compensates for spatial constraints and achieves uniform heating across the product width.
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 design enhances operational flexibility, throughput, and toasting consistency, enabling the efficient handling of a wider range of bread products, including elongated ones, by allowing asynchronous operation of conveyors and heat sources, and ensuring even heating distribution.
Implementation Method 1
radiant and/or conductive energy transfer into the baked good from one or more heat sources
Implementation Method 2
radiant and/or conductive energy transfer into the baked good from one or more heat sources
Implementation Method 3
equivalent electrical heat sources
Implementation Method 4
The Maillard reaction is the reaction between carbohydrates and proteins that occurs upon heating and which produces changes in the color and texture of the baked good
Implementation Method 5
carbohydrates in a bread product will oxidize completely and form carbon
Implementation Method 6
Carbon absorbs light. The surface of a burned bread product, therefore, appears black
Data Source
AI summary
A toaster includes first and second conveyors configured to each receive a bread product thereon and move the bread product through respective first and second toasting zones. A first heat source is positioned to direct heat energy into the first toasting zone. A second heat source is positioned to direct heat energy into the second toasting zone. The first and second conveyors are coplanar and laterally spaced apart by a first distance and are configured to operate in a same direction of travel. Interior extents of the first heat source and the second heat source are laterally spaced apart by a second distance.