Multi-Level Roller Cutter Shredding for Precise Recycling

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Solution Overview

Problem

Existing recycling devices are inefficient in breaking down materials into manageable pieces for further processing, leading to mixed recyclables and increased manual separation at recycling plants, and often result in non-recyclable materials ending up in landfills.

Innovation Solution

A multi-level shredding apparatus with varying roller cutter configurations and integrated sensors to optimize material breakdown into manageable pieces, accompanied by a computer processor for quality assessment and automated control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If existing recycling devices are used, then the device complexity is low, but the manufacturing precision of material fragmentation is insufficient leading to mixed recyclables

Engineering Contradiction:
Improvematerial fragmentation precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The recycling device is divided into multiple levels (first level, second level, third level) with different roller cutter configurations. Each level performs a specific fragmentation function with varying blade shapes (first shape, second shape, third shape) to progressively break down materials into increasingly smaller pieces, achieving high manufacturing precision through staged processing

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device incorporates adjustable components including variable speed motors that can rotate roller cutters at different speeds, and adjustable spacing between roller cutters. These dynamic adjustments allow optimization of fragmentation precision for different material types while maintaining manageable device complexity through controlled variability

Inventive Principle:
Principle #15Dynamics

2Productivity

If multi-level shredding is implemented, then the productivity of recycling processing is improved, but the device complexity increases with multiple levels and sensors

Engineering Contradiction:
Improverecycling processing efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The recycling system is segmented into multiple processing levels that operate simultaneously or sequentially. Each level (first level, second level, third level) with its specific roller cutter configuration handles a portion of the processing load, collectively achieving high productivity while distributing the complexity across modular units

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device incorporates sensors (fill sensor, weight sensor, camera) and a computer processor that enable automated monitoring and control of the fragmentation process. The system self-regulates by detecting material flow, bin fill levels, and processing quality, reducing the need for manual intervention and maintaining high productivity with automated complexity management

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If varying roller cutter configurations are used, then the adaptability to different material types is improved, but the ease of manufacture decreases

Engineering Contradiction:
Improvematerial type adaptabilityVSAvoidease of manufacture
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Different levels of the device are equipped with roller cutters having locally optimized blade configurations (first shape, second shape, third shape) suited for specific fragmentation stages or material types. This local quality differentiation enables adaptability to various materials while each individual roller cutter unit remains relatively simple to manufacture

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The device incorporates adjustable components including variable speed motors and adjustable roller cutter spacing that allow the same physical hardware to adapt to different material types and processing requirements. This dynamic adaptability reduces the need for multiple specialized devices, improving versatility while maintaining ease of manufacture through standardized adjustable components

Inventive Principle:
Principle #15Dynamics

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

Enhances material fragmentation to fit into recycling bins efficiently, reduces manual separation, and improves the quality and quantity of recyclables, minimizing environmental impact and increasing the effectiveness of recycling processes.

Implementation Method 1

a first level including at least two roller cutters... the first material travels into the first level and is shredded by the first level forming a first shredded material

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12599910B2Configurable, compact, multi-variant recyclable material fragmentation apparatus and method
Publication Date: 2026.04.14 SAVE PLANET LLC
  • US12599910B2 patent drawing
  • US12599910B2 patent drawing
  • US12599910B2 patent drawing

AI summary

An apparatus for recycling material which includes: a housing; typically at least two levels of cutters each having at least two roller cutters, which may be configured to slide and create variable gap to accommodate materials of varying sizes. A weight sensor; a fill sensor; and a camera may be provided, wherein various data is transmitted to a central data hub enabling recycle bin pickup synchronization and determining quality of shredded materials. The roller cutters on different levels typically have a plurality of cutting blades, wherein the shape on each of the levels may be different. The first and second level are typically fixed to the housing and material shredded by the first level proceeds to second level which is then shredded by the second level before being discarded into recycle bin. Another level of at least two roller cutters with a different shape may be part of the apparatus.