Plastic Cartridge Core Fork With Elastic Piece for Smooth Rotation
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Solution Overview
Problem
Cosmetic cartridge cores made of mixed materials are difficult to disassemble and recycle, leading to resource waste due to the integration of metal and plastic components.
Innovation Solution
A fork for the cartridge core made entirely of plastic material, featuring an elastic piece with a thickness ranging from ⅓ to ½ of the fork body's wall thickness, ensuring smooth rotation and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal and plastic components are integrated in the cartridge core to achieve aesthetic appearance and functional requirements, then the product quality and performance are improved, but the complexity of disassembly and recycling deteriorates
Solution Approach 1:
The cartridge core is divided into distinct functional components: the fork body made of plastic material and the elastic piece made of rubber material. This segmentation allows each component to be optimized for its specific function while enabling easier separation and recycling. The elastic piece is further segmented into a body portion and a protruding portion with different material properties, facilitating targeted recycling approaches.
Solution Approach 2:
The elastic piece is extracted as a separate component from the fork body, with each made from different materials (plastic and rubber respectively). This extraction eliminates the need for complex disassembly of integrated metal-plastic structures, as the elastic piece can be independently removed and recycled through appropriate channels for rubber materials.
2Ease of operation
If the elastic piece thickness is increased to improve the hand feel and rotation smoothness, then the operational comfort is improved, but the material consumption and manufacturing cost increase
Solution Approach 1:
The elastic piece exhibits local quality variations through its differentiated structure: the body portion has a first thickness while the protruding portion has a second thickness that is 0.05-0.15 times the first thickness. This local variation optimizes the elastic properties where needed (at the contact point with the spiral) while minimizing material consumption in less critical areas, achieving smooth rotation with reduced material usage.
Solution Approach 2:
The thickness parameter of the elastic piece is precisely controlled within specific ranges (first thickness: 0.1-0.5mm, second thickness: 0.05-0.15 times the first thickness) to optimize the balance between operational smoothness and material consumption. This parameter optimization ensures sufficient elastic deformation capability while minimizing material usage.
3Quantity of substance
If the elastic piece thickness is decreased to reduce material consumption, then the material cost is reduced, but the rotation resistance increases and operational smoothness deteriorates
Solution Approach 1:
The elastic piece exhibits local quality variations through its differentiated structure: the body portion has a first thickness while the protruding portion has a second thickness that is 0.05-0.15 times the first thickness. This local variation optimizes the elastic properties where needed (at the contact point with the spiral) while minimizing material consumption in less critical areas, achieving smooth rotation with reduced material usage.
Solution Approach 2:
The cartridge core employs composite material construction with the fork body made of plastic material and the elastic piece made of rubber material. This material differentiation allows the elastic piece to provide necessary friction and elastic deformation for smooth rotation while using minimal material quantity, as the rubber material's inherent properties compensate for the reduced thickness.
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
Enables the entire cartridge core to be recycled, reducing waste and providing a smoother operational feel without the need for lubricants, by optimizing the elastic piece's thickness for reduced resistance.
Implementation Method 1
the fork body is provided with an elastic piece between the chute and the coupling portion; the elastic piece extends outward along a radial direction of the fork body
Implementation Method 2
By providing the elastic piece on the fork, the present application ensures the smooth rotation of the cartridge core, and the desirable hand feel of the cartridge core in operation
Data Source
AI summary
A fork for a cartridge core, a cartridge core, and a cosmetic container are provided. The fork includes a fork body, where a chute is formed in the fork body; a lower end of the fork body is provided with a coupling portion; the fork body is provided with an elastic piece between the chute and the coupling portion; the elastic piece extends outward along a radial direction of the fork body; the fork body is made of a plastic material; and a thickness of the elastic piece is ⅓ to ½ of a wall thickness of the fork body. The fork is made of the plastic material, such that the whole cartridge core is recycled conveniently. The elastic piece on the fork ensures the smooth rotation of the cartridge core, and the desirable hand feel of the cartridge core in operation.