Conveyor-Type Sandwich Maker for Simultaneous Heating and Compression
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Solution Overview
Problem
Traditional sandwich presses can only heat one sandwich at a time, limiting efficiency in food preparation and requiring manual operation, while existing solutions do not provide simultaneous compression and heating capabilities for conveyor systems.
Innovation Solution
A conveyor-type sandwich maker with counter-rotating top and bottom Teflon-coated belts that transport sandwiches through heating plates, applying simultaneous heat and compression, driven by a motor system with reversing gears for synchronized belt operation, and equipped with adjustable swing arms and optional cleaning and camera systems for quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional sandwich presses are used, then sandwiches can be heated, but only one sandwich at a time which limits productivity
Solution Approach 1:
The sandwich press is divided into multiple independent heating zones (first heating assembly and second heating assembly) that operate simultaneously on different sandwiches. Each heating zone functions as an independent unit, allowing parallel processing of multiple sandwiches thereby increasing productivity while maintaining manageable system complexity through modular design
Solution Approach 2:
Multiple heating assemblies and conveyor belts are merged into a single integrated system where sandwiches are transported continuously through multiple heating zones. The conveyor belts merge the function of positioning and transporting sandwiches, while the heating assemblies work in parallel to process multiple sandwiches simultaneously, resolving the contradiction between increased productivity and system complexity
2Productivity
If conveyor belts are used to transport sandwiches, then productivity increases, but simultaneous compression and heating capability is lost
Solution Approach 1:
The conveyor belts are designed to perform dual functions: transporting sandwiches through the heating zones and simultaneously compressing them against the heating assemblies. The belts are positioned and tensioned such that they apply continuous compression force while moving sandwiches through the heating process, thereby merging transportation and compression functions into a single operational mechanism that maintains ease of operation while enabling continuous high-volume processing
Solution Approach 2:
The conveyor belts serve multiple purposes within the system: they transport sandwiches from the loading to the discharge end, apply compression force against the heating assemblies, and maintain sandwich positioning throughout the heating process. This multi-functionality allows the system to achieve high productivity through continuous conveyor operation while preserving the essential compression and heating capabilities needed for proper sandwich preparation
3Ease of repair
If Teflon coating is applied to conveyor belts, then ease of cleaning improves, but manufacturing complexity increases
Solution Approach 1:
The conveyor belts are manufactured with a Teflon (PTFE) coating that fundamentally changes the surface properties of the belts, creating a non-stick, low-friction surface that is easily cleaned and prevents sandwich adhesion. This parameter change in surface characteristics provides exceptional ease of cleaning and maintenance while the coating application process is integrated into standard belt manufacturing procedures, minimizing the impact on manufacturing complexity
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
Enables efficient, simultaneous heating and compression of multiple sandwiches, improving throughput and allowing for real-time quality control and adjustment of cooking parameters, while maintaining ease of cleaning and adaptability to different sandwich sizes.
Implementation Method 1
the apparatus simultaneously compresses the sandwich and applies heat to both the top and the bottom sides of the sandwich
Implementation Method 2
top and bottom, optionally teflon-coated, food-grade conveyor belts which transport a sandwich
Data Source
AI summary
Disclosed is sandwich maker comprising top and bottom conveyor belts which transport a sandwich, or other food item suitable for simultaneous heating and compression inserted in one end of the apparatus to the other end of the apparatus. As the sandwich travels on the conveyor belts, the apparatus simultaneously compresses the sandwich and applies heat to both the top and the bottom sides of the sandwich so that it emerges from the sandwich maker fully cooked and ready to serve.