Electromechanical Vertical Shears With Pulley-Driven Angle Control
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Solution Overview
Problem
Existing vertical cutting shears, whether electric or hydraulic, face limitations such as inability to change cutting angles, excessive energy consumption, noise pollution, and environmental impact due to large mass management and hydraulic fluid usage, which affects cutting quality and operational efficiency.
Innovation Solution
An electromechanical vertical cutting shear system incorporating an electric servomotor, gear reducer, pulley system, and guillotine retraction mechanism, allowing for adjustable cutting angles and reduced energy consumption, with a pulley system that enables efficient cutting of varying sheet thicknesses and materials while minimizing noise and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If electric or hydraulic vertical cutting shears are used, then cutting power is provided, but energy consumption is excessive and noise pollution is generated during idle time
Solution Approach 1:
The patent employs a servomotor that operates periodically only during cutting operations rather than continuously. The motor starts the guillotine movement, then stops after the cut is completed, with the guillotine returning to initial position through gravity or spring mechanism. This periodic operation eliminates energy waste during idle time while maintaining sufficient cutting power when needed.
Solution Approach 2:
The patent replaces hydraulic systems with an electromechanical system using a servomotor, gear reducer, and pulley system. This substitution eliminates the need for continuous hydraulic pump operation and fluid circulation, significantly reducing energy consumption during standby periods while providing adequate cutting power through the mechanical advantage of the pulley system.
2Adaptability or versatility
If hydraulic means are used to adjust cutting angle and knife angle, then angle adjustment is achieved, but uncontrollable force is exerted on cutting blades reducing cut quality
Solution Approach 1:
The patent replaces hydraulic adjustment mechanisms with an electromechanical system using a servomotor, gear reducer, and pulley system. This substitution provides precise, controllable force application through the mechanical advantage of the pulleys, eliminating the uncontrollable force surges characteristic of hydraulic systems while maintaining the ability to adjust cutting angles and knife angles.
Solution Approach 2:
The patent uses a servomotor with precise control capabilities to adjust cutting parameters (angles) in a controlled manner. The servomotor can precisely control the position and force applied during angle adjustment, allowing for accurate setup without the force control issues inherent in hydraulic systems.
3Adaptability or versatility
If hydraulic systems are used for angle adjustment, then cutting angle variability is achieved, but environmental impact increases due to oil waste
Solution Approach 1:
The patent replaces hydraulic systems with an electromechanical system using a servomotor and pulley mechanism. This substitution eliminates the use of hydraulic fluid entirely, removing the source of oil waste and associated environmental contamination risks while maintaining the full capability for cutting angle adjustment and material versatility.
4Power
If large mass rotating elements are used for cutting, then cutting power is achieved, but production difficulty increases due to management and processing of very large masses
Solution Approach 1:
The patent replaces heavy inertia-based cutting mechanisms with a servomotor-driven pulley system. The mechanical advantage provided by the pulleys allows a relatively small servomotor to generate sufficient cutting force, eliminating the need for large, difficult-to-manage rotating masses while maintaining effective cutting power.
Solution Approach 2:
The patent introduces a pulley system as an intermediary mechanism between the servomotor and the guillotine. This pulley system multiplies the force generated by the small servomotor, allowing it to achieve the cutting power previously requiring large rotating masses, thereby simplifying manufacturing and mass management.
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 system achieves efficient cutting with reduced energy consumption, lower noise levels, and extended equipment life, enabling cost-effective and environmentally friendly operation by allowing for adjustable cutting angles and efficient handling of different materials without the need for hydraulic systems.
Implementation Method 1
the power it generates is multiplied by the multiple pulley systems
Implementation Method 2
which can use compression springs or a hydraulic or a pneumatic system for the retraction of the guillotine to its starting position
Data Source
Figure 1~2
Figure 3A~3B
Figure 4~5
AI summary
The electromechanical vertical cutting shear (1) comprises an electric servomotor (4) combined with a gear reducer (5) at least one shaft (6) bearing one or more spools (7), at least one motion transmission means (8) which is connected to a guillotine (11), and a cutting system comprising at least a pair of knives (12). The electromechanical shear (1) comprises a pulley system (9) for every motion transmission means (8).