Belt-Type Vacuum Packaging With Belt-Integrated Gas Injection
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Solution Overview
Problem
Existing belt-type vacuum packaging machines are incapable of providing vacuum packaging with subsequent introduction of gaseous substances to create a modified atmosphere, limiting their use to non-continuous systems with high production costs, and are not suitable for industrial-scale production of vacuum-packed products in modified atmosphere.
Innovation Solution
A belt-type vacuum packaging machine with injector nozzles integrated into the conveyor belt for injecting inert gaseous substances into preformed bags after creating a vacuum, allowing continuous packaging in modified atmosphere.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chamber vacuum packaging machines are used to provide vacuum packaging with modified atmosphere, then the preservation time and organoleptic properties are improved, but the productivity is limited due to intermittent cycling
Solution Approach 1:
The packaging process is segmented into separate functional zones along the conveyor belt: vacuum extraction zone, gas injection zone, and sealing zone. This allows continuous processing of multiple bags simultaneously at different stages, transforming the intermittent chamber process into a continuous belt process while maintaining modified atmosphere packaging quality
Solution Approach 2:
The conveyor belt system enables continuous movement of bags through the packaging process without stopping. The vacuum pump, gas injectors, and welding bars operate continuously along the belt, eliminating the idle time between cycles that characterizes chamber machines, thereby significantly increasing productivity
2Productivity
If tilting cover vacuum packaging machines are used to reduce dead time, then the production speed is improved, but continuous packaging capability is still not achieved
Solution Approach 1:
The system uses a dynamic conveyor belt that continuously moves bags through different processing zones, replacing the static tilting cover mechanism. This dynamic approach allows simultaneous operation of multiple bags at different stages, achieving true continuous packaging capability while maintaining high production speed
3Productivity
If belt-type vacuum packaging machines are used for continuous packaging, then the productivity is improved, but the capability to introduce gaseous substances for modified atmosphere is lost
Solution Approach 1:
The invention merges the continuous belt conveyor system with gas injection capability by integrating injectors that introduce gaseous substances directly into bags on the moving belt after vacuum extraction. This combination maintains continuous packaging productivity while restoring the modified atmosphere functionality typically associated with chamber machines
4Reliability
If chamber machines are used to ensure vacuum packaging with controlled atmosphere, then the quality of packaging is improved, but the device complexity and cost increase
Solution Approach 1:
The invention extracts the essential functions of modified atmosphere packaging (vacuum extraction and gas introduction) from the complex sealed chamber structure. By using a conveyor belt with localized vacuum zones and gas injectors, it achieves the same packaging quality with significantly reduced structural complexity and lower cost
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 continuous packaging of products in modified atmosphere, reducing production costs and improving preservation time compared to existing systems.
Implementation Method 1
a circuit with a vacuum pump for removing the air from the tank when the cover is closed so as to create the vacuum inside the tank and the bag
Implementation Method 2
A belt-type vacuum packaging machine with injector nozzles integrated into the conveyor belt for injecting inert gaseous substances into preformed bags after creating a vacuum
Implementation Method 3
a welding bar and a welding counter-bar for welding the open edge of the bag
Data Source
AI summary
A belt-type vacuum packaging machine (1) comprising a base frame (2) that supports a work surface (3), a conveyor belt 4 of products (P) to be vacuum packed in bags (B) inside a vacuum chamber (10), a vacuum production system (11) that communicates with the vacuum chamber (10), welding means (12) of the bags (B) adapted to be operated after the vacuum packaging of the bags (B), an operating control panel (40) and an injection system (13) for injecting a gaseous substance into each bag (B) after the vacuum packaging is performed, in which the injection system (13) comprises a supply line (15) for the gaseous substance, interception devices of the supply line and connecting means (16) of the supply line (15) connecting to a plurality of injector nozzles (14) of the gaseous substance into the bags (B). Preferably, the injector nozzles (14) are removably fixed to the conveyor belt (4) and are accommodated in the vacuum chamber (10) together with the welding means (12) during the vacuum packaging.