Packaging Machine Deaeration Nozzle and Closing Unit
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Solution Overview
Problem
Conventional packaging machines fail to reliably deaerate packaging bags without small apertures, leading to contamination by foreign substances and potential damage or collapse during storage and transportation.
Innovation Solution
A packaging machine that supports bags with a pair of grips, uses a deaeration nozzle to remove air while holding the bag's mouth closed from both sides with a closing unit, and heat-seals the mouth, ensuring no small apertures or aerating parts are necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small apertures or aerating parts are provided in the packaging bag to eliminate remaining air, then deaeration is achieved, but foreign matter such as insects can enter and contaminate the packaged article
Solution Approach 1:
The closing unit is divided into a pair of separate closing members that can independently close the bag mouth from both sides, allowing the deaeration nozzle to insert through one side while the other side remains sealed to prevent contamination
Solution Approach 2:
The closing unit acts as an intermediary mechanism that temporarily controls the bag mouth state - allowing insertion of the deaeration nozzle while maintaining overall closure to prevent foreign matter entry during the deaeration process
2Object-affected harmful factors
If the packaging bag is sealed without deaeration to prevent contamination, then foreign matter is kept out, but the packaging bag may be damaged or collapsed during storage and transportation
Solution Approach 1:
Deaeration is performed preliminarily before final sealing by inserting the deaeration nozzle through the closing unit, removing air from the bag while it is still held open by the closing members, then sealing the bag in a deaerated state to prevent both contamination and collapse
Solution Approach 2:
The closing unit maintains continuous control over the bag mouth throughout the filling and deaeration process, ensuring the bag remains sealed except during the controlled deaeration period, thus continuously protecting against contamination while enabling deaeration
3Reliability
If a closing unit is introduced to hold the bag mouth closed during deaeration, then deaeration reliability is improved, but device complexity increases
Solution Approach 1:
The closing unit serves multiple functions: it closes the bag mouth to prevent contamination, allows insertion of the deaeration nozzle, and maintains bag stability during the process, thereby achieving complex objectives with a relatively simple structure
Solution Approach 2:
The closing unit is designed as a separable component that can be attached to or removed from the packaging machine, allowing the deaeration nozzle to be extracted through it while keeping the rest of the system simple and maintainable
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 method prevents contamination and damage by ensuring complete deaeration of packaging bags, maintaining their integrity during storage and transportation without the need for small apertures or aerating parts.
Implementation Method 1
eliminates air in the packaging bag by a deaeration nozzle
Implementation Method 2
heat-seals the mouth
Data Source
AI summary
Providing a packaging machine and a packaging method both of which are capable of packaging with an imperforate bag provided with no small apertures or no aerating part, can prevent contamination of foreign substances such as insects and can further prevent the packaging bags from being damaged or collapsed during storage in a piled state or transportation by execution of reliable deaeration. The packaging machine and a packaging method have a closing unit 4 which holds a vicinity of mouth a of a packaging bag A inserted with a deaeration nozzle held from opposed sides of the bag A, an airway securing unit, a shaping press unit and a temporary sealing unit.