Vacuum Preservation Machine Printing Date Codes
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Solution Overview
Problem
Current vacuum preservation machines lack the capability to print production dates and batch numbers, making it difficult for customers to determine the production date of food stored in preservation bags.
Innovation Solution
A vacuum preservation machine is designed with a printing wheel and a block mechanism that allows date codes to be printed on the preservation bag when the machine is vacuum-tightened, using a hot-melt or stamped block to enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a vacuum preservation machine is designed with a printing wheel and block mechanism to print date codes on the preservation bag, then the ability to track food storage time is improved, but the device complexity increases
Solution Approach 1:
The patent combines the vacuum sealing function with the date code printing function into a single integrated mechanism. When the upper and lower covers are closed for vacuum sealing, the printing wheel automatically presses against the preservation bag through the block mechanism, printing the date code simultaneously. This merging of functions resolves the technical contradiction by achieving information tracking without adding a separate, complex printing device.
Solution Approach 2:
The printing mechanism is designed to activate automatically during the vacuum sealing process itself. The block on the lower cover and printing wheel on the upper cover work together such that the act of closing the covers for vacuum sealing simultaneously activates the printing action. This self-service approach eliminates the need for a separate printing operation or additional complex control systems.
2Measurement precision
If the printing wheel presses the preservation bag onto a hot-melt or stamped block to make date codes clearer, then the visibility of printed information is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent employs hot-melt or stamped blocks to change the physical state or surface properties of the printing surface. The hot-melt process heats the block to a specific temperature to melt and imprint the date code, while stamping applies mechanical pressure to create a raised or indented pattern. These parameter changes (temperature, pressure) enhance the visibility and permanence of the date code without requiring complex manufacturing equipment.
Solution Approach 2:
The block can be designed as a simple, potentially disposable component that is easy to manufacture through relatively simple processes like hot-molding or stamping. Rather than creating a complex, permanent, and expensive printing surface, the patent accepts that the block may have limited service life but is inexpensive to replace, thereby resolving the contradiction between visibility and manufacturing ease.
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 clear tracking of food storage time by printing date codes on the preservation bag, ensuring accurate documentation of production dates and batch numbers.
Implementation Method 1
the upper sealing foam and lower sealing foam can be fit together to formed a sealing chamber to vacuum the preservation bag
Implementation Method 2
the block is hot-melt or stamped
Implementation Method 3
the block is hot-melt or stamped
Data Source
AI summary
A vacuum preservation machine capable of printing date codes includes an upper cover and a lower cover connected together and capable of opening and closing, the upper cover and the lower cover are respectively provided with an upper sealing foam and a lower sealing foam at corresponding positions, an upper side of the lower cover is provided with a preservation bag and the opening of the preservation bag is located on the inner side of the lower sealing foam, when the upper cover is closed, the upper sealing foam and lower sealing foam can be fit together to formed a sealing chamber to vacuum the preservation bag, the upper cover is provided with a printing wheel at the position of the inner side of the upper sealing foam; the lower cover is provided with a block at the position of the inner side of the lower sealing foam.