Vertical Mesh Exposure Unit for Uniform Zipper Tooth Coating
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Solution Overview
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.
Innovation Solution
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.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional painting or galvanic plants are used for zipper teeth coating, then coating processes are simple and equipment cost is low, but production capacity is limited and space requirements are significant
Solution Approach 1:
The exposure unit is divided into multiple vertically spaced annular channels, each capable of holding and treating zipper teeth independently. This segmentation allows parallel processing of multiple tooth batches simultaneously, significantly increasing production capacity while maintaining a compact vertical footprint
Solution Approach 2:
The invention transitions from horizontal space utilization to vertical space utilization by stacking multiple annular channels vertically along a central axis. This dimensional change enables high-density packing of treatment zones, achieving high productivity in a minimal floor space
2Manufacturing precision
If loose zipper teeth are coated using conventional methods, then equipment is simple, but coating uniformity is inadequate and mechanical properties are not adequate
Solution Approach 1:
Mixing blades are introduced that rotate to dynamically agitate and redistribute loose zipper teeth within the annular channels during the coating process. This dynamic mixing ensures uniform exposure of all tooth surfaces to the coating material, achieving consistent coating uniformity and adequate mechanical properties
Solution Approach 2:
The metal mesh annular channels serve as an intermediary structure that holds and circulates the loose zipper teeth through the coating zone. The mesh structure provides both containment and permeability, allowing uniform coating deposition while maintaining tooth mobility for consistent treatment
3Productivity
If multiple baskets are used to increase production capacity, then productivity improves, but device complexity and maintenance difficulty increase
Solution Approach 1:
Multiple treatment zones are merged into a single integrated exposure unit with vertically stacked annular channels sharing a common support structure and drive mechanism. This consolidation achieves high productivity through parallel processing while maintaining simple, unified equipment that is easier to build, inspect, and maintain compared to multiple separate baskets
Data Source
Figure 1
Figure 2~3b
Figure 4~5
AI summary
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).