Vacuum Packaging Device Suction Time Automation
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Solution Overview
Problem
Existing vacuum packaging machines require manual calculation of suction time, which is complex, inaccurate, and time-consuming.
Innovation Solution
A vacuum packaging method that acquires package size information, selects a suction constant, and calculates suction time based on pressure differences within a vacuum chamber, ensuring accurate and quick determination of suction completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual calculation of suction time is used, then operating personnel can determine suction completion, but the calculation becomes complex and time-consuming with low accuracy
Solution Approach 1:
The patent replaces manual calculation methods with an automated computer-based calculation system. The control system automatically calculates suction time based on package volume and real-time pressure data from pressure sensors, eliminating the need for operating personnel to perform complex manual calculations. This substitution of mechanical/manual operations with automated computational systems directly resolves the contradiction by improving accuracy while reducing time consumption.
Solution Approach 2:
The patent implements a feedback mechanism where pressure sensors continuously monitor pressure changes during vacuum packaging, and this real-time data feeds back to the control system for dynamic suction time calculation. The control system adjusts suction duration based on actual pressure curves and package characteristics, ensuring accurate determination of suction completion. This feedback loop enables precise, adaptive calculation that resolves both accuracy and time efficiency requirements.
2Reliability
If manual calculation of suction time is used, then suction completion can be confirmed, but the algorithm becomes complicated with data errors
Solution Approach 1:
The patent replaces complex manual calculation algorithms with automated computer-based calculations. The control system executes standardized algorithms that process pressure sensor data and package volume information to determine suction completion reliably. This automation eliminates human calculation errors and simplifies the operational complexity while maintaining high reliability in determining when suction is complete.
Solution Approach 2:
The control system performs self-service by automatically calculating suction time and determining suction completion without requiring operating personnel intervention. The system uses embedded algorithms that process sensor data and automatically adjust suction parameters, making the complex calculation process transparent and reliable while reducing operational complexity for users.
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
The method simplifies and automates the calculation of suction time, reducing errors and saving time by using a reliable algorithm to determine when the vacuum process is complete.
Implementation Method 1
a vacuum chamber for accommodating a package; the vacuum pump set arranged on the device body serves to suction gas inside the vacuum chamber
Implementation Method 2
the pressure sensor arranged inside the vacuum chamber serves to detect a pressure inside the vacuum chamber and determine whether the pressure reaches the first preset pressure P1, the second preset pressure P2, and the suction-stopping pressure P
Data Source
AI summary
A vacuum packaging method and device are provided. The method comprises acquiring size information of a package and selecting a suction constant b; controlling a door to seal the vacuum chamber after the package is disposed into a vacuum chamber; actuating a vacuum pump set and starting timing, and respectively recording time nodes t1 and t2 when a pressure detected inside the vacuum chamber is lowered to a first preset pressure P1 and a second preset pressure P2; calculating time difference Δt by a formula Δt=t2−t1 based on t1 and t2; obtaining total suction time T or suction-stopping pressure P based on Δt and b; continuously performing suction by the vacuum pump set, and controlling the vacuum pump set to stop suction once a suction time reaches T or the pressure inside the vacuum chamber is lowered to P; controlling a heater to finish heat-sealing.