Exposure unit for the exposure of zipper teeth to a treatment of depositing a surface coating film

A compact exposure unit with a vertical cylindrical framework and mixing blades addresses the inefficiencies of traditional coating methods for zipper teeth, achieving uniform and efficient coating in a small space and time, enhancing properties and ease of maintenance.

EP4414089B1Active Publication Date: 2025-07-23METELIER SA
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Patent Information

Application Number
EP2024155933
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-02-07
Filing Date
2024-02-06
Publication Date
2025-07-23
Estimated Expiration
2044-02-06

AI Technical Summary

Technical Problem

Existing surface coating processes for zipper teeth, such as painting and galvanic treatments, are inadequate in terms of mechanical, physical, and chemical properties, and are inefficient for small bulk products, with limited production capacity and space requirements.

Method used

A compact exposure unit with a vertical cylindrical framework, mixing blades, and metal mesh annular channels, allowing for uniform coating of loose zipper teeth in a small space and time, using a motorized shaft for movement, ensuring thorough mixing and uniform treatment.

Benefits of technology

The solution enables efficient and uniform coating of zipper teeth in a minimal space and time, improving mechanical, physical, and chemical properties, while being cost-effective and easy to build and maintain.

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Abstract

The exposure unit (1) for exposing zipper teeth (2) to a treatment of depositing a surface coating film comprises a vertical cylindrical framework (3), a plurality of mixing blades (7), a plurality of metal mesh annular channels (4) vertically spaced apart and rigidly supported in cantilever fashion from the vertical cylindrical framework (3) coaxially with the vertical axis of the vertical cylindrical framework (3), wherein said annular channels (4) have a bottom (5) and a lateral containment edge (6) which in cooperation delimit a volume, open at the top, for collecting the teeth (2), wherein each mixing blade (7) projects from above into the volume for collecting the teeth (2) of a corresponding annular channel (4), and wherein there is provided a movement means configured to make the mixing blades (7) sweep the entire volume for collecting the teeth (2).
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Citation Information

Patent Citations

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