Cutting Unit Cradle Mechanism for Adjustable Blade Orientation
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Solution Overview
Problem
Current cutting-off machines are limited in their cutting capacity due to fixed blade movements and positioning, which restricts the exploitation of the available blade surface for cutting, particularly in making tilted cuts, and cannot simultaneously maximize cutting capacity in both horizontal and vertical directions.
Innovation Solution
A cutting unit with a cradle-shaped element that supports the blade, allowing the axis of tilt to be independently positioned relative to the resting plane, enabling adjustable distance between the blade rotation axis and the resting plane to optimize cutting capacity based on the cutting needs, and incorporating a sliding mechanism for the blade and cradle to facilitate various cutting orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the flange diameter is increased to stabilize blade rotation and prevent oscillation, then cutting precision improves, but the maximum penetration depth of the blade decreases
Solution Approach 1:
The patent replaces the static flange connection with a dynamic rotation mechanism where the blade support element can rotate around a vertical axis. This dynamic system provides stability through controlled rotation rather than relying on a large flange, maintaining cutting precision while preserving blade penetration depth.
2Device complexity
If the blade is mounted coaxially to the motor (direct transmission), then the structure is simpler and cheaper, but the motor dimensions prevent full exploitation of the blade cutting capacity
Solution Approach 1:
The patent introduces a dynamic rotation mechanism where the blade support element rotates around a vertical axis independently of the motor orientation. This allows the use of indirect transmission (motor mounted on parallel axis) without significantly increasing overall complexity, while enabling full exploitation of blade cutting capacity through optimized blade positioning and movement.
3Device complexity
If fixed blade movements and positioning are used, then the machine structure is simpler, but the cutting capacity is limited and cannot be optimized for different cutting orientations
Solution Approach 1:
The patent makes the blade support element rotatable around a vertical axis, transforming the fixed blade positioning into a dynamic system. This allows the blade to be positioned at different angles and orientations to optimize cutting capacity for various workpiece shapes and sizes, significantly enhancing adaptability while maintaining reasonable structural complexity.
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 solution allows for adjustable cutting capacity in both horizontal and vertical directions, enhancing the machine's ability to perform precise cuts by optimizing the blade's interaction with the workpiece, including tilted cuts, and enabling the use of the full blade surface for cutting, thus overcoming the limitations of fixed blade movements and positioning in prior machines.
Implementation Method 1
a circular blade (5) suitable for cutting said pieces, said blade being supported in a cradle-shaped element (12) suitable for rotating around a substantially horizontal axis of tilt (A)
Implementation Method 2
incorporating a sliding mechanism for the blade and cradle to facilitate various cutting orientations
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A cutting unit (1) for a cutting-off machine comprises a base (2) with which there are associated a resting plane (3) for pieces (P) to be cut, a circular blade (5) suitable for cutting said pieces (P), said blade (5) is supported in an element (12) suitable for rotating around a substantially- horizontal axis (A), the position of said rotation axis (A) being independent of the position of said resting plane (3).