Adjustable Die Cutting Tool for Open Profiles Without Deformation
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Solution Overview
Problem
Traditional cutting tools for U-shaped rails deform the profiles due to rigidity issues and complex shapes, and they often produce hazardous chips, noise, and require significant energy, making them inefficient and unsafe for cutting profiles of varying widths.
Innovation Solution
An adjustable cutting tool with a matrix that can adjust in width, combined with a mechanism for lowering the blade in translation and a blade of specific shape to optimize cutting effort, ensuring consistent cutting force and ergonomics, while preventing deformation and hazardous conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional saws, discs, or shears are used for cutting profiles, then cutting operation can be performed, but the profile is deformed due to low material rigidity or complex shape
Solution Approach 1:
The die is made adjustable in width to adapt to different profile dimensions, transforming a static tool into a dynamic one that can accommodate varying profile widths while maintaining proper support and preventing deformation during cutting
Solution Approach 2:
The die width parameter is changed to match the profile width being cut, ensuring optimal support and cutting conditions for each specific profile dimension, thereby preventing deformation while maintaining cutting efficiency
2Productivity
If traditional cutting tools are used, then cutting can be performed, but dangerous chips are produced due to the length of cutting edges
Solution Approach 1:
The cutting edge is segmented into multiple sections with different functions (punching portion for initial penetration, shearing portions for progressive cutting, rolling portions for chip formation), which breaks down the cutting process into controlled stages that prevent dangerous chip formation
3Power
If electric cutting tools are used, then cutting power is sufficient, but energy consumption increases and noise is generated
Solution Approach 1:
The electric motor-driven cutting mechanism is replaced with a manual mechanical system using a lever-operated die, eliminating energy consumption and noise while maintaining sufficient cutting power through mechanical advantage
4Device complexity
If a fixed-width die is used, then the tool structure is simple, but profiles of different widths cannot be cut
Solution Approach 1:
The die is designed with adjustable width capability, allowing it to adapt to different profile dimensions while maintaining a relatively simple overall structure through the use of movable lateral dies and locking mechanisms
5Force
If a pivoting punch with complex curved shape is used, then shearing forces are limited, but cutting forces increase for wide rails and the tool becomes bulky
Solution Approach 1:
The cutting edge is divided into distinct functional portions (punching, shearing, rolling) that work in sequence, allowing each portion to be optimized for its specific function while maintaining overall compactness and reducing total cutting force requirements
Solution Approach 2:
Different sections of the cutting edge have different geometries and functions tailored to specific cutting stages, with the punching portion optimized for initial penetration and shearing portions optimized for clean cutting, thereby reducing overall force requirements without compromising cutting 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
The tool allows for precise cutting of profiles of different widths without deformation, reduces cutting forces, and ensures optimal ergonomics and safety by maintaining consistent cutting force and efficient chip ejection, resulting in a compact and versatile cutting solution.
Implementation Method 1
the blade (300) mounted to move in translation on the frame (1), the plane of the blade defining a cutting plane... the matrix (10) intended to receive the profile (R) to be cut... delimits a notch (10a) provided with a slot (11) intended to receive the blade (300) during cutting
Data Source
Figure 1~4
Figure 5~8
Figure 9~12
AI summary
The invention relates to a cutting tool for sectioning profiles with an open cross-section. The tool comprises a frame (1) and an actuating handle (2) for a blade (300) mounted to move in translation on the frame between a raised position for receiving, between the frame (1) and the blade (300), a profile (R) to be cut transversely, and a final cutting position in which the profile is completely cut. The frame (1) includes a die (10, 12, 14) for receiving the profile to be sectioned and defining a notch (10a) provided with a slot (11) for receiving the blade (300) during cutting. The die includes a base die (12) for supporting the profile, and at least one lateral die (14) mounted to move in translation so as to define a notch (10a) of variable width.