Packaging Web Drying Chamber Pressure Control
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Solution Overview
Problem
Existing machines for producing containers from a web of packaging material struggle to maintain consistent sterilization, sanitization, and drying states due to variations in installation conditions and external environments, requiring manual recalibration and increased setup time.
Innovation Solution
The machine incorporates a sensor to detect pressure within the drying chamber and a control unit that automatically adjusts the air-suction unit's operating parameters to achieve optimal pressure settings, ensuring consistent conditions regardless of installation specifics and environmental variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual recalibration is performed to adjust operating parameters after installation, then the machine can adapt to installation conditions and environmental variations, but the setup time increases
Solution Approach 1:
The machine performs automatic calibration of operating parameters without requiring manual intervention. The control unit automatically adjusts the air-suction unit and compression unit based on sensor feedback, enabling the system to self-adapt to installation conditions and environmental variations, thereby reducing setup time while maintaining adaptability
Solution Approach 2:
Pressure sensors continuously monitor the pressure in the drying chamber and forming chamber, providing feedback to the control unit. The control unit uses this feedback to automatically adjust operating parameters of the air-suction unit and compression unit, enabling real-time adaptation to maintain optimal sterilization, sanitization, and drying conditions
2Ease of manufacture
If operating parameters are manually adjusted during installation, then the machine can be calibrated for specific conditions, but the manufacturing precision of sterilization and drying states deteriorates due to parameter drift
Solution Approach 1:
Pressure sensors in the drying chamber and forming chamber continuously monitor pressure conditions and provide feedback to the control unit. The control unit automatically adjusts operating parameters to maintain precise control over sterilization, sanitization, and drying states, preventing parameter drift and ensuring consistent manufacturing precision
Solution Approach 2:
The patent replaces manual mechanical adjustment of operating parameters with an automated control system that uses electronic sensors and control units. This substitution eliminates human error and parameter drift associated with manual calibration, maintaining precise control of sterilization and drying states through automated feedback loops
3Device complexity
If pressure in chambers is not controlled, then the structure is simpler, but the sterilization and sanitization effectiveness deteriorates
Solution Approach 1:
Pressure sensors continuously monitor chamber pressure and provide feedback to the control unit, which automatically adjusts the air-suction unit and compression unit to maintain optimal pressure for sterilization and sanitization. This feedback mechanism ensures reliable sterilization effectiveness without requiring overly complex manual control systems
Solution Approach 2:
The control system automatically maintains optimal pressure conditions for sterilization and sanitization through self-adjusting feedback control, eliminating the need for complex manual intervention while ensuring reliable sterilization effectiveness. The system serves itself by automatically compensating for pressure variations
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 solution enables fast and automatic identification of optimal machine settings, maintaining stable chamber conditions during operation and reducing the need for continuous pressure feedback measurements, thus improving production efficiency and reducing setup time.
Implementation Method 1
The air that is introduced into the forming chamber is designed to bring about a controlled atmosphere both in the forming chamber and in the drying chamber, which is at a pressure higher than the pressure of the external environment so as to guarantee isolation of said chambers from the environment itself
Implementation Method 2
a compression unit for supplying pressurized air into the forming chamber
Implementation Method 3
a drying chamber, which is set downstream of the tank along the work path, is in fluid communication with said tank, and is equipped with at least one drying device for drying the web of packaging material that advances along the work path
Implementation Method 4
the bath may contain a sterilizing and/or sanitizing liquid for performing an action of sterilization and/or sanitization of the web of packaging material
Data Source
Figure 1
AI summary
A machine (10) for producing containers (110) filled and sealed, comprising: a feed system for feeding a web (100) of packaging material along a work path (K); a tank (20), which contains a bath (20') immersed in which is the web (100) that advances along the work path (K); a drying chamber (40), set downstream of and in fluid communication with the tank (20), for drying the web (100) that advances along the work path (K); and a forming chamber (60), set downstream of and in fluid communication with the drying chamber (40), and equipped with a forming device for forming the web (100) and obtaining the containers (110). A calibration step is provided for identifying automatically an optimal set-up of the machine.