Mobile Hatch Transparent Window for Heat-Shrinking Tunnel Visibility
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Solution Overview
Problem
Existing packaging machines with shrinking tunnels face challenges in maintaining visibility for optimizing heat-shrinking processes due to complex and difficult-to-maintain window structures, which hinder effective monitoring and parameter setting.
Innovation Solution
Equipping at least one of the tunnel openings with a mobile hatch containing a transparent window made of glass, framed with a flexible material, allowing easy access and maintenance, and enabling observation of the tunnel interior without the need for disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a complex multi-layer glass window structure is used to provide visibility into the tunnel, then visibility is improved, but device complexity and maintenance difficulty increase
Solution Approach 1:
The window structure is segmented into a movable hatch portion and a fixed frame portion. The hatch can be independently opened for cleaning while the frame remains stationary, simplifying the overall structure and maintenance procedure compared to a fixed multi-layer glass assembly.
Solution Approach 2:
The window is designed as a movable hatch that can open and close, rather than a fixed structure. This dynamic design allows for easy access to the inner surface for cleaning purposes without disassembling the entire window structure, reducing maintenance complexity.
2Illumination intensity
If a fixed multi-layer glass window structure is used, then visibility is provided, but ease of maintenance deteriorates due to disassembly requirements
Solution Approach 1:
The window assembly is divided into a movable hatch and a fixed frame. The hatch can be independently manipulated for cleaning purposes, allowing maintenance personnel to access and clean the inner surface without disassembling the entire window structure or removing components.
Solution Approach 2:
The hatch is designed to be movable rather than fixed, enabling easy access to the inner surface for cleaning. The hinge connection allows the hatch to be opened to a convenient position for maintenance activities while maintaining structural integrity during operation.
3Loss of energy
If the tunnel openings are sealed to prevent heat loss, then energy efficiency is improved, but visibility for process monitoring is reduced
Solution Approach 1:
The hatch provides a dynamic solution that allows the opening to be sealed during operation to prevent heat loss, yet can be opened when visibility is needed for monitoring or maintenance. This dynamic capability resolves the contradiction between energy efficiency and visibility requirements.
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 mobile hatch provides easier maintenance and improved visibility within the tunnel, facilitating better heat-shrinking process monitoring and reducing heat-related issues by allowing camera access without compromising safety or construction complexity.
Implementation Method 1
at least one window portion (13) comprising at least partially a portion made of transparent material (15)... adapted to allow a vision of the inside of the shrinking tunnel (5)
Implementation Method 2
through which a product wound in a plastic envelope, for example heat-shrinkable PP, PPLP or PVC, travels through a belt sliding inside the oven itself, in which heat-shrinking and sealing of such envelope around the product are performed
Data Source
Figure 1
Figure 2~3b
AI summary
A packaging machine (1) is described, comprising at least one shrinking tunnel (5) for packaging at least one product through a heat-shrinking film, at least one of the entry or exit openings (9) of the shrinking tunnel (5) being equipped with at least one hatch (11) mobile at least from a first operating position in which it closes the opening (9) to at least one second operating position in which it at least partially opens the opening (9) to allow the product to enter in or to exit from the shrinking tunnel (5) through the opening (9) and vice versa, the hatch (11) comprising at least one window portion (13) comprising at least partially a portion made of transparent material (15).