Self-Propelled Shear Press with Remote Control

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Solution Overview

Problem

Static and towed shear presses face inefficiencies in processing scrap metal due to their immobility, requiring extensive crane movements, increased time, fuel consumption, and environmental impact, while also limiting adaptability to site changes and causing safety hazards.

Innovation Solution

A self-propelled shear press equipped with remote control capabilities, allowing it to move autonomously and follow the loading machine, reducing the need for extensive crane movements and enabling continuous operation without waiting for new loads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a static shear press is used, then the machine structure is simple and stable, but the processing time increases and productivity decreases due to waiting for scrap to arrive

Engineering Contradiction:
Improvemachine stabilityVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The shear press is transformed from a static to a mobile machine by adding self-propulsion means (tracks with hydraulic motors), allowing it to move autonomously along the storage area and process scrap continuously without waiting for loading

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a mobile loading machine is used to feed the static shear press, then the scrap can be loaded into the bin, but the crane requires numerous movements increasing time consumption and fuel consumption

Engineering Contradiction:
Improveloading capabilityVSAvoidcrane movement time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

Instead of the loading machine moving to the shear press, the shear press moves to the scrap piles autonomously using its self-propulsion system, inverting the traditional loading approach and eliminating crane movements

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The shear press serves itself by moving autonomously to different scrap piles using its own propulsion system, controlled remotely, eliminating the need for external loading machinery

Inventive Principle:
Principle #25Self-service

3Productivity

If the shear press is made mobile, then the processing efficiency improves, but the device complexity increases due to additional propulsion systems

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidmechanical complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The hydraulic system serves multiple functions: it powers both the cutting/pressing operations and the self-propulsion mechanism, reducing the need for separate power systems and minimizing overall device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If a towed shear press is used, then the machine can be moved, but additional equipment like tractor and stabilizing stands are required increasing operational complexity

Engineering Contradiction:
ImprovemobilityVSAvoidoperational complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shear press is equipped with self-propulsion means including tracks and hydraulic motors, transforming it from a passive towed machine to an active self-moving machine that can autonomously navigate the site

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shear press stabilizes itself during operation using integrated stabilizing mechanisms and maintains its own position, eliminating the need for external tractors and manual setup operations

Inventive Principle:
Principle #25Self-service

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 self-propelled shear press significantly reduces processing time, fuel consumption, and environmental impact, while increasing efficiency and adaptability, allowing for immediate operation upon arrival and reduced wear on equipment.

Implementation Method 1

a hydraulic pusher for advancing the scrap into the bin

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Implementation Method 2

an outlet through which the scrap is released from the bin via the pusher. The outlet is in the form of a vertical guillotine gantry with cutting blades for severing the scrap

Methodology Applied
Scientific EffectShear stress: Shear Stress

Data Source

PatentEP4112289B1Self-propelled press-cutter
Publication Date: 2025.05.28 PRESSES & CISAILLES LEFORT
  • EP4112289B1 patent drawingFigure 1~2
  • EP4112289B1 patent drawingFigure 3
  • EP4112289B1 patent drawingFigure 4

AI summary

The invention relates to a self-propelled shear press (1) equipped with a remote control (23) to control its movements, and a method for processing scrap metal using such a shear press (1).