Cast Platen Heating Element for Dough Press
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Solution Overview
Problem
In moving belt dough presses, the large size of platens makes it costly and difficult to replace heating elements when they fail, due to the need for precise bore holes and the high cost of replacing entire platens, leading to overheating and premature failure of separately inserted heating rods.
Innovation Solution
Cast electrical resistance heating elements directly into the large platens, eliminating the need for precise bore holes and allowing for easier maintenance and reduced downtime, as these elements do not overheat like separately inserted rods do.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If separately inserted rod shaped heating elements are used in large platens, then the platens can be heated, but the heating elements overheat and fail prematurely due to clearance issues
Solution Approach 1:
The heating element is merged with the platen by casting it directly into the platen structure. This integration eliminates the clearance gap between the heating element and platen wall, ensuring efficient heat conduction and preventing overheating of the heating element, thereby improving reliability.
2Ease of manufacture
If precisely drilled bore holes are made in large platens for heating element insertion, then heating elements can be installed, but the cost and complexity of assembly increases
Solution Approach 1:
The heating element is cast directly into the platen during the platen manufacturing process, eliminating the need for separate bore hole drilling and heating element insertion. This integration simplifies assembly and reduces the precision requirements for separate components.
3Temperature
If heating elements are inserted into bore holes in large platens, then heating can be provided, but replacement of faulty elements requires replacing entire platens due to high cost and difficulty
Solution Approach 1:
The heating element is designed as a separate, removable component that can be accessed and replaced without removing the entire platen. The heating element is positioned to allow removal through the platen structure, enabling independent replacement of the heating element while retaining the expensive platen component.
4Productivity
If large platens are used in moving belt presses, then many dough pieces can be pressed simultaneously, but the cost of replacing platens increases significantly
Solution Approach 1:
The heating element is designed as a separate, replaceable component within the platen structure. This segmentation allows the expensive platen to be retained and reused while only the relatively inexpensive heating element needs replacement, significantly reducing the cost of repairs for large platens used in high-capacity presses.
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 approach reduces assembly and replacement costs, improves press reliability, and allows for continuous operation with reduced downtime for faulty heating element replacements.
Implementation Method 1
an electrical resistance heating element is cast in place within the at least one platen
Implementation Method 2
conduction of the heat from the heating element is reduced causing the heating element to overheat
Data Source
AI summary
A moving belt conveyor dough press is provided with a pair of vertically opposing platens, at least one of which is movable toward and away from the other. A continuous belt is arranged to pass between the pair of platens, and to carry on an upper surface thereof, a supply of dough masses to be pressed by the platens. At least one of the platens is formed of a cast metal material, and an electrical resistance heating element is cast in place within the at least one platen.