Integrated Cosmetic Carrier Lug Tab Design
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Solution Overview
Problem
Traditional cosmetic packaging, particularly lipstick containers, face challenges due to complex structures, cumbersome assembly processes, and high manufacturing costs, as well as limitations in shape and coaxiality control.
Innovation Solution
A cosmetic material carrier with an integrated tube body and bottom plate, featuring a lug connected to a spiral portion on the tube body and a tab for fixing the cosmetic material on the bottom plate, simplifying manufacturing and assembly while reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-piece movable cylindrical portion (inner barrel and outer barrel) is used, then the cosmetic material can be carried and fixed, but the structure becomes complex, assembly process becomes cumbersome, and manufacturing cost increases
Solution Approach 1:
The patent combines the inner barrel and outer barrel into a single integrated movable cylindrical portion. The lug is formed as an integral part of the tube body through punching and bending operations, eliminating the need for separate components and reducing assembly complexity while maintaining the cosmetic material fixation function.
Solution Approach 2:
The movable cylindrical portion is segmented into functional zones: the tube body for structural support, the lug for engagement with the spiral portion, and the bottom plate with tabs for cosmetic material fixation. This functional segmentation allows each part to perform its specific role efficiently within an integrated structure.
2Reliability
If both tab and lug are provided on the tube body, then the cosmetic material can be fixed, but the tab and lug are limited in shape and coaxiality control becomes difficult
Solution Approach 1:
The tab is positioned specifically on the bottom plate rather than on the tube body, creating local functional differentiation. This separation allows the lug on the tube body and the tab on the bottom plate to be optimized independently for their respective functions, improving both shape flexibility and coaxiality control.
Solution Approach 2:
The bottom plate serves as an intermediary element between the tube body and the cosmetic material. By placing the tab on the bottom plate rather than directly on the tube body, the design gains an additional degree of freedom for positioning and orientation, thereby improving coaxiality control and shape flexibility.
3Device complexity
If an integrated movable cylindrical portion is used, then the structure is simpler, but the tab and lug are limited in shape and coaxiality control is difficult
Solution Approach 1:
The lug is designed with dynamic formability through punching and bending operations, allowing it to be shaped after the basic integrated structure is formed. This enables shape flexibility and coaxiality adjustment while maintaining the simplicity of the integrated movable cylindrical portion structure.
Data Source
AI summary
A cosmetic material carrier and a cartridge core assembly including same are provided. The cosmetic material carrier includes a tube body and a bottom plate fixedly connected to the tube body, where a lug protruding outward along a radial direction is provided on a sidewall of the tube body, and a tab for fixing a cosmetic material is provided on the bottom plate. The lug connected to a spiral portion is provided on the tube body. The tab for fixing a paste is provided on the bottom plate. The cosmetic material carrier is an integrated tube. Therefore, a manufacturing process and a mounting process are simplified, and a manufacturing cost of the carrier is lowered.