Plugged Molding Strip Cavities for Precise Retaining Patterns
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Solution Overview
Problem
The production of strips with alternating areas of retaining elements and areas devoid of retaining elements is technically complex and expensive, and it is difficult to clearly delineate these areas.
Innovation Solution
A molding device with a molding strip featuring cavities that are partially obturated by a plugging material, allowing for the formation of retaining elements and non-functional cavities, and a retaining device with varying numbers of retaining elements in rows and columns to create complex patterns with improved accuracy and gripping capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional methods are used to produce strips with alternating areas of retaining elements and areas devoid of retaining elements, then the production process becomes technically complex and expensive, but the delineation between areas remains unclear
Solution Approach 1:
The molding strip is segmented into multiple cavities, where each cavity can be independently obturated or left open. This segmentation allows precise control over which areas form retaining elements and which areas remain devoid of retaining elements, achieving clear delineation without complex production processes
Solution Approach 2:
The cavities are pre-obturated with plugging material before the molding process. This preliminary action defines the future pattern areas in advance, allowing the molding material to only form retaining elements in the desired locations, thereby simplifying the overall production process while ensuring precise area delineation
2Manufacturing precision
If traditional molding methods are used, then the production process is simplified, but the accuracy of pattern representation and gripping capacity are reduced
Solution Approach 1:
Different regions of the molding strip are given different properties: some cavities are obturated to form pattern areas with retaining elements, while other cavities remain open to form areas devoid of retaining elements. This local differentiation achieves high pattern accuracy while maintaining production simplicity through a unified molding process
Solution Approach 2:
The plugging material acts as an intermediary that selectively fills certain cavities to define the pattern. This intermediary element enables precise pattern representation by controlling where molding material can and cannot flow, while the overall process remains simple and integrated
Data Source
AI summary
A molding device including a molding strip formed of a first material and extending along a machine direction, having a width defined along a transverse direction perpendicular to the machine direction, and a thickness measured along a direction perpendicular to the machine direction and to the transverse direction, and an inner face and an outer face, the molding strip including a plurality of cavities, characterized in that part of the cavities are at least partially obturated by a plugging material, so as to define molding cavities for forming retaining elements and/or preforms of retaining elements, and non-functional cavities.