Rack Oven Height Adjustment for Uniform Bottom Heating
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Solution Overview
Problem
Conventional rack ovens struggle to achieve uniform heat distribution and adapt to different bread types that require heating from below, as existing solutions do not allow for adjustable contact between bread and heat preserving plates.
Innovation Solution
A device with a first driving arrangement to adjust the height of the heat preserving support and a second driving arrangement to adjust the height of the bread-carrying rack, allowing for simultaneous adjustment of the distance between the heat preserving plates and the bread, enabling uniform heat distribution and adaptable baking conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bread is placed on baking plates in a rack oven, then manual involvement is minimized and energy is saved, but uniform heat distribution cannot be achieved and bread cannot be heated from below
Solution Approach 1:
The invention makes the heat preserving plates movable by providing a lifting mechanism that can raise them to contact the bread. This transforms the static heating arrangement into a dynamic one where the distance between heat source and bread can be adjusted, enabling both uniform heat distribution and bottom heating while maintaining the batch processing capability of rack ovens
Solution Approach 2:
The heat preserving plates act as an intermediary between the heat source and the bread. By lifting these plates into contact with the bread, the system mediates heat transfer directly to the bread surface, achieving uniform heat distribution and bottom heating while the rack oven structure maintains high productivity
2Temperature
If the heat preserving plates are raised to contact the bread, then bottom heating is achieved, but the distance between plates and bread cannot be adjusted for different bread types
Solution Approach 1:
The lifting mechanism enables dynamic adjustment of the heat preserving plates' position. The plates can be raised to contact the bread for bottom heating, and the distance can be adjusted according to different bread types and baking requirements, providing both bottom heating capability and adaptability
Solution Approach 2:
The invention allows changing the physical parameter of distance between heat preserving plates and bread. By adjusting this distance parameter, the system can adapt to different bread types and baking conditions while maintaining the bottom heating function when contact is made
3Productivity
If the rack structure is used for holding multiple baking plates, then efficiency is improved, but contact between bread and heat preserving plates cannot be uniformly achieved at all levels
Solution Approach 1:
The lifting mechanism is segmented to operate independently at different levels of the rack. Each heat preserving plate can be raised separately to contact the corresponding baking plate, ensuring uniform heat contact across all levels while maintaining the high productivity of multi-level rack structure
Data Source
AI summary
Disclosed is a device (10) in a rack oven (1) for adjusting the mutual height between a support (2) including horizontal heat preserving plates (3) and a bread-carrying rack (4) of breads, which device includes a first connection point (13) for connection to the heat preserving support (2) inside the oven (1); a first driving arrangement (11) for regulating the height of the first connection point (13) and the heat preserving plates (3) of the support from a first, passive position to a second, active position. A second driving arrangement (12) including a second connection point (14) for connection to the bread-carrying rack is arranged to adjust the height of the second connection point (14) with respect to the first connection point (13) in order to adjust the distance between the horizontal heat preserving plates (3) of the support (2) and the bread-carrying rack (4).