Integrated Laminating Machine Layout Without Passage Pits
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Solution Overview
Problem
Existing laminating machines for producing multilayer films are bulky, require extensive installation time and space, are prone to dust and solvent vapor accumulation, and increase costs due to ventilation needs.
Innovation Solution
A compact laminating machine design with integrated unwinding and laminating units, eliminating the need for passage pits and allowing for in-line lamination of three films without solvent-based adhesive issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two duplex machines are arranged in series with a passage pit to connect them, then three films can be laminated in-line, but the machine becomes considerably bulky and requires extensive installation space
Solution Approach 1:
The patent combines two duplex machines into a single integrated laminating machine where the laminating units share common components (unwinding assemblies, adhesive applicators, drying chambers, winding assembly). This merging eliminates the need for separate machines and passage pits while maintaining the capability to laminate three films in-line.
Solution Approach 2:
The patent arranges the unwinding assemblies, laminating units, and winding assembly in a compact linear configuration along the film transport path, optimizing the use of space in the direction of film movement rather than requiring lateral expansion with passage pits.
2Adaptability or versatility
If a passage pit is provided to convey the laminated film between machines, then in-line lamination is achieved, but excavation and preparation works require time and space, lengthening installation time
Solution Approach 1:
The patent extracts and eliminates the passage pit component from the system by integrating all laminating operations within a single machine structure. The laminated film is conveyed directly between laminating units through the machine's internal structure without requiring external passage pits or excavation works.
3Adaptability or versatility
If a passage pit is used for film conveyance, then in-line lamination is enabled, but dust and dirt accumulate in the pit, compromising product quality for food and medical packaging
Solution Approach 1:
The patent removes the passage pit from the system entirely, replacing it with enclosed film conveyance paths within the laminating machine. This eliminates the open pit environment where dust and dirt could accumulate and contaminate the laminated films intended for food and medical packaging.
4Strength
If solvent-based adhesive materials are used in the passage pit, then bonding is achieved, but solvent vapors accumulate making the atmosphere explosive, requiring additional fans and increasing costs
Solution Approach 1:
The patent eliminates the passage pit environment where solvent vapors could accumulate. By integrating the adhesive applicators and drying chambers within the enclosed laminating machine structure, solvent vapors are contained and managed within controlled environments rather than accumulating in open pits, reducing explosion risks and eliminating the need for additional ventilation fans.
5Adaptability or versatility
If two duplex machines are arranged in series, then three films can be laminated, but the overall machine costs increase due to additional ventilation requirements
Solution Approach 1:
The patent merges two duplex machines into a single integrated structure where ventilation and safety systems are consolidated. The common drying chamber and enclosed structure allow for unified vapor management rather than requiring separate ventilation systems for each machine, reducing overall complexity and cost.
Data Source
AI summary
A laminating machine for producing multilayer films, which comprises at least one first unwinding assembly for a first film, at least one second unwinding assembly for a second film, and at least one third unwinding assembly for a third film; laminating means for laminating together the films, with the interposition of an adhesive material, and applicator means of the adhesive material; the first unwinding assembly and the second unwinding assembly are arranged along a first direction of extension of the machine; the third unwinding assembly is arranged along a second direction of extension of the machine which is substantially transverse with respect to the first direction of extension, and is positioned laterally with respect to a vertical plane which is substantially parallel to the first direction of extension and passes through the first unwinding assembly and the second unwinding assembly.