Template for Controlling Material Application Around Protuberances
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Solution Overview
Problem
The consistent and accurate application of materials, such as adhesives or sealants, around protuberances on workpieces is challenging due to complications like material not reaching the base, contamination of unintended areas, and difficulties in conforming to specific shapes, especially with varying flow characteristics.
Innovation Solution
A template system comprising a first and second portion, where the first portion is geometrically complementary to the protuberance's base and adhesive-free, and the second portion has a visual material-placement indicator and an adhesive layer, allowing controlled application of material around the protuberance by inserting the protuberance into a positioning opening and separating the portions to apply material up to the indicator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If material is applied around a protuberance without a template, then the application process is simple, but the material may not reach the base of the protuberance or may contaminate unintended areas
Solution Approach 1:
A template acts as an intermediary tool between the material application source and the workpiece. The template includes a positioning opening that receives the protuberance and defines the exact area where material should be applied, preventing contamination of unintended areas while ensuring material reaches the base of the protuberance.
Solution Approach 2:
The template is divided into a first portion and a second portion that can be separated. The first portion includes the positioning opening for the protuberance, while the second portion defines the material application area. This segmentation allows the template to be customized for different protuberance shapes and sizes while maintaining precise material placement control.
2Manufacturing precision
If a template is used to control material application, then material placement precision is improved, but the device complexity increases
Solution Approach 1:
The template is designed to be universally applicable to different protuberance types and material application scenarios. The geometric complementarity between the positioning opening and various protuberance bases allows the same template structure to work with different workpiece geometries, reducing the need for multiple specialized templates.
Solution Approach 2:
The template dimensions and geometry can be adjusted to match different protuberance sizes and shapes. By changing the parameters of the positioning opening and material application area in the template, the same basic template design can accommodate various material viscosities and application requirements without fundamental design changes.
3Reliability
If material is applied to cover the base of the protuberance, then sealing effectiveness is improved, but material may form an excessively high outer edge
Solution Approach 1:
The template is positioned on the workpiece before material application, with the second portion already defining the exact boundaries of the material application area. This preliminary positioning ensures that when material is applied, it automatically conforms to the correct shape and height limits, preventing excessively high outer edges while ensuring complete coverage of the protuberance base.
Data Source
AI summary
A template for controlling application of material around a protuberance is disclosed. The protuberance extends from a workpiece and has a base. The template comprises a first portion and a second portion, removably attached to the first portion at a boundary. The first portion comprises a first-portion inner peripheral edge that at least partially defines a positioning opening and that is geometrically complementary to at least a portion of the base of the protuberance. The first portion also comprises a first-portion workpiece-facing surface that is adhesive-free. The second portion comprises a visual material-placement indicator, located on a second-portion environment-facing surface. The second portion also comprises an adhesive layer, located on at least a portion of a second-portion workpiece-facing surface.