Zipper Tooth Exposure Unit with Metallic Recess Retention for Coating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing surface coating processes for zipper teeth, such as painting or galvanic treatments, suffer from reduced production capacity and inadequate mechanical and chemical properties, making them unsuitable for efficient and aesthetic coating.
Innovation Solution
An exposure unit that individually holds and evenly distributes zipper teeth using metallic or metallized retaining means, such as filiform elements or flexible cords, ensuring all surfaces except the recess are exposed to coating, with electrical connection for uniform treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional painting or galvanic plants are used for coating zipper teeth, then the coating can be applied to small parts, but the production capacity is reduced and the mechanical and chemical properties of the coating are inadequate
Solution Approach 1:
The patent replaces traditional mechanical coating methods (painting, galvanic plants) with a deposition treatment system that uses controlled material deposition under vacuum or plasma conditions. This substitution enables high-speed automated coating while achieving superior mechanical and chemical properties through precise control of deposition parameters.
Solution Approach 2:
The invention changes the fundamental parameters of the coating process by controlling deposition rate, substrate temperature, vacuum level, and plasma conditions. These parameter changes enable simultaneous achievement of high production capacity and superior coating quality that cannot be obtained with traditional methods.
2Device complexity
If zipper teeth are coated using traditional methods, then the coating process can be simplified, but the coating is not evenly distributed and surfaces of specific interest are not selectively exposed
Solution Approach 1:
The patent segments the coating process into controlled deposition zones using masks and positioning systems. This segmentation allows selective exposure of specific surfaces while maintaining even distribution of coating material only on the desired areas, achieving high manufacturing precision without excessive overall process complexity.
Solution Approach 2:
The invention introduces intermediary elements such as masks, positioning fixtures, and distribution nozzles that mediate between the coating source and the zipper teeth. These intermediaries enable precise control over which surfaces receive coating and ensure even distribution, resolving the contradiction between process simplicity and coating precision.
3Manufacturing precision
If zipper teeth are held in fixed positions during coating, then individual teeth can be precisely positioned, but the retaining structure becomes complex and may interfere with coating exposure
Solution Approach 1:
The patent extracts the positioning function from a complex retaining structure and implements it through simple positioning pins or fixtures that hold teeth in predetermined locations. This extraction maintains individual tooth positioning precision while minimizing the complexity of the retaining structure and interference with coating exposure.
Solution Approach 2:
The invention uses flexible retaining elements or thin film masks that can conform to the tooth positions without creating complex rigid structures. These flexible elements provide precise positioning while being minimally intrusive to the coating process, resolving the contradiction between positioning precision and structural complexity.
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 exposure unit allows for efficient and uniform coating of zipper teeth surfaces, improving production capacity and mechanical and chemical properties, ensuring all relevant surfaces are treated effectively.
Implementation Method 1
metallic or metallised retaining means (10) of individual teeth (100) in specified positions, wherein the teeth (100) are arranged on the exposure unit (1) by means of a force connection engagement of the metallic or metallised retaining means (10) in the recess (103) between the legs (101) of the teeth (100)
Data Source
Figure 1~2C
Figure 3A~3D
Figure 4A~4D
AI summary
An exposure unit (1) for exposing zipper teeth (100) to a treatment of depositing a surface coating film, wherein the zipper teeth (100) have two opposite legs (101), respectively (101 A, 101 B) connected by a bridge (102) which delimits a recess (103) between the legs (101), the exposure unit comprising a metallic or metallised retaining means (10) for retaining the zipper teeth (100) in specific positions, wherein the metallic or metallised retaining means (10) is configured for a force connection by elastic mechanical engagement in the recess (103) between the legs (101) of the zipper teeth (100).