Polymer Reinforced Screening Panel for Vibratory Machines

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Solution Overview

Problem

Conventional screen panels for vibratory machines face challenges in balancing strength and longevity while maintaining a high open area for material separation, leading to reduced throughput and increased weight due to the need for additional support structures.

Innovation Solution

The use of a screen panel design featuring a reinforcing structure made from high-strength engineering polymers, such as polyamide or polyphthalamide, overmolded with a vulcanized rubber layer that covers the reinforcing structure, enhancing stiffness and wear resistance while reducing the panel's weight and the need for additional support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional screen panels use additional support structures to maintain strength, then the panel strength is improved, but the panel weight increases and open area decreases

Engineering Contradiction:

Improvepanel strengthVSAvoidpanel weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The screen panel uses a composite structure combining a polymer layer with a reinforcing structure made of high-strength material. This composite design provides the necessary strength and stiffness while maintaining weight efficiency, as the reinforcing structure is strategically positioned only where needed rather than using comprehensive support structures throughout the entire panel.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The reinforcing structure is positioned locally beneath the polymer layer at specific high-stress areas rather than uniformly across the entire panel. This localized reinforcement approach provides strength where needed while minimizing additional weight and preserving open area in regions that do not require reinforcement.

Inventive Principle:

Principle #3Local quality

2Strength

If conventional screen panels use additional support structures to maintain strength, then the panel strength is improved, but the open area for material separation decreases

Engineering Contradiction:

Improvepanel strengthVSAvoidopen area

Core Design Contradiction:

StrengthVSArea of moving object

Solution Approach 1:

The composite structure of polymer layer plus strategically positioned reinforcing structure provides the necessary strength without requiring comprehensive support frameworks that would block material flow. The high-strength material allows for minimal intervention in the open area while maintaining structural integrity.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

By concentrating reinforcement only in specific high-stress zones beneath the polymer layer, the design preserves maximum open area in the regions where material separation occurs, while still providing adequate strength support where mechanically necessary.

Inventive Principle:

Principle #3Local quality

3Reliability

If the panel uses more material to enhance durability, then the durability is improved, but the panel weight increases

Engineering Contradiction:

ImprovedurabilityVSAvoidpanel weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The combination of polymer material with a reinforcing structure creates a composite that achieves superior durability without proportionally increasing weight. The high-strength material in the reinforcing structure provides enhanced durability and wear resistance only where needed, rather than uniformly throughout the entire panel.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The reinforcing structure is positioned locally at high-wear and high-stress areas to enhance durability specifically where the polymer layer is most vulnerable, rather than adding material uniformly across the entire panel. This targeted approach improves durability while minimizing weight increase.

Inventive Principle:

Principle #3Local quality

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

This design increases the open area for material separation, enhances the panel's durability, and reduces the overall weight of the screening system, improving material throughput and reducing the load on vibratory machines.

Implementation Method 1

enhancing stiffness and wear resistance

Methodology Applied

Scientific EffectWear resistance: Wear

Implementation Method 2

vulcanized rubber layer

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 3

separate the desired material from less desired material

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 4

screening systems for vibratory machines

Methodology Applied

Scientific EffectVibration: Vibration

Data Source

PatentUS20230264229A1Polymer Reinforced Screening Panel

Publication Date: 2023.08.24 POLYDECK SCREEN CORP

AI summary

A screen panel for a vibratory machine includes a polymer layer comprising a resilient material and defining a plurality of panel apertures extending through the polymer layer from an upper screening surface to a bottom surface of the polymer layer, each of the plurality of panel apertures defining an aperture perimeter. The screen panel includes a reinforcing structure having a top surface that supports at least a portion of the bottom surface of the polymer layer, wherein the reinforcing structure is positioned under the polymer layer along only a portion of the aperture perimeter of each of the plurality of panel apertures.