Composite EPP Racket Structure for Deformation Resistance
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Solution Overview
Problem
Rackets made of honeycomb pp material are prone to deformation and lack sufficient elasticity due to material limitations.
Innovation Solution
A preparation process involving the use of an integrated solid EPP material, combined with carbon fiber or glass fiber plates, epoxy resin glue, and a UV printer to enhance structural integrity and elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If honeycomb pp material is used to make rackets, then the rackets are lightweight and easy to manufacture, but the rackets deform under serious collision and cannot maintain elasticity
Solution Approach 1:
The patent uses integrated solid EPP material combined with carbon fiber or glass fiber plates to create a composite structure. This composite material approach provides both the lightweight advantage and the structural stability needed to resist deformation under collision, resolving the contradiction between ease of manufacture and shape stability.
Solution Approach 2:
The patent changes the material density parameter by using integrated solid EPP material with controlled density (0.01-0.05 g/cm³). This parameter change maintains the lightweight characteristic while improving the material's resistance to deformation and ability to maintain elasticity under stress.
2Ease of manufacture
If honeycomb pp material is used for racket construction, then manufacturing is simple and cost-effective, but the elasticity and rebound performance are insufficient
Solution Approach 1:
The composite structure of integrated solid EPP material with carbon fiber or glass fiber plates provides enhanced elasticity and rebound performance while maintaining manufacturing simplicity. The fiber reinforcement within the EPP matrix improves elastic properties without significantly complicating the manufacturing process.
3Reliability
If integrated solid EPP material is used instead of honeycomb pp material, then shape stability and elasticity are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The manufacturing process is segmented into distinct steps: preparing the integrated solid EPP material, attaching the carbon fiber or glass fiber plates, and final assembly. This segmentation makes the previously complex process more manageable and systematic, reducing overall complexity while maintaining the improved shape stability.
4Duration of action of stationary object
If the racket uses integrated solid EPP material with fiber reinforcement, then durability and wear resistance are enhanced, but the material selection and processing requirements increase
Solution Approach 1:
The patent specifies a controlled density range (0.01-0.05 g/cm³) for the integrated solid EPP material, which optimizes both durability and material adaptability. This parameter specification ensures the material is neither too dense (reducing weight) nor too light (reducing strength), balancing service life with manufacturing feasibility.
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 improved racket maintains shape stability, enhances elasticity, and extends service life by resisting deformation and wear, providing better performance and durability.
Implementation Method 1
the integrated solid EPP material is hard on the outside and soft on the inside, so that the prepared racket can be well prevented from being deformed, and meanwhile, the elastic performance is greatly improved
Implementation Method 2
a carbon fiber plate or a glass fiber plate is sewed and bonded on an integrated solid EPP material by colloid
Implementation Method 3
put the cleaned racket prototype into a UV printer to draw the surface pattern or attach the surface with water marks
Data Source
AI summary
The invention relates to the technical field of rackets, and discloses a preparation process of an improved racket, which comprises the following steps: step one, taking a carbon fiber plate or a glass fiber plate, sewing and bonding the carbon fiber plate or the glass fiber plate on an integrated solid EPP material through colloid, and pressing again through pressure equipment; Step 2, the pressed primary product is made into the external structural shape of the required racket by a cutting machine, and it is cleaned; Step 3, put the cleaned racket prototype into a UV printer to draw the surface pattern or attach the surface with water marks. By adjusting the internal material of the racket to the integrated solid EPP material, the prepared racket can be prevented from being deformed, and at the same time, the elastic performance is improved.