Oscillating Cutting Blade with Variable Angle for V-Grooves
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Solution Overview
Problem
Existing cutting units with fixed cutting blades struggle to make bevel cuts or V-grooves in solid materials like cardboard, and those with oscillating blades face limitations in precision and complexity due to piezoelectric or pneumatic drives, while lacking the ability to make inclined cuts along curved paths.
Innovation Solution
An oscillating cutting unit with a pivotable electric drive that allows the cutting blade to change its angle of inclination relative to the material support surface, using an electric motor with a gear system for oscillation and a tangential drive for alignment, enabling precise control and adjustable cutting depth without additional compressed air supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed cutting blades are used, then the device structure is simple, but the cutting performance deteriorates for solid materials when cutting depth exceeds a certain level
Solution Approach 1:
The cutting blade is transformed from a fixed position to an oscillating motion through an oscillating drive mechanism. The blade oscillates along an oscillation axis perpendicular to the feed direction, enabling it to effectively cut solid materials like cardboard at greater depths by creating a sawing action that reduces resistance and improves material removal efficiency.
2Measurement precision
If piezoelectric oscillating drives are used, then the oscillation precision is high, but the lifting height is very low limiting material suitability
Solution Approach 1:
The oscillating drive parameters are optimized to achieve both high oscillation precision and sufficient lifting height. The drive mechanism provides controlled oscillation with amplitudes up to 2 mm, balancing precision requirements with the need for adequate cutting depth capability across various material types.
3Length of moving object
If pneumatic oscillation drives are used, then the oscillation amplitude is sufficient, but the device complexity and cost increase due to additional compressed air supply
Solution Approach 1:
The pneumatic oscillation drive system is replaced with an electric oscillating drive. This substitution eliminates the need for compressed air supply infrastructure while providing sufficient oscillation amplitude through electric motor-driven mechanisms, thereby reducing device complexity and operational costs.
4Device complexity
If fixed cutting knives are used, then the device structure is simple, but the cutting depth capability deteriorates for solid materials
Solution Approach 1:
The cutting blade is transformed from a fixed position to an oscillating motion through an oscillating drive mechanism. The blade oscillates along an oscillation axis perpendicular to the feed direction, enabling it to effectively cut solid materials like cardboard at greater depths by creating a sawing action that reduces resistance and improves material removal efficiency.
5Device complexity
If cutting units without pivotability are used, then the device structure is simple, but the versatility deteriorates as oblique incisions and V-shaped grooves cannot be made
Solution Approach 1:
The oscillating drive is made pivotable about a pivot axis parallel to the material support surface, allowing the oscillation axis to be inclined at variable angles. This enables the cutting blade to create oblique incisions and V-shaped grooves in addition to vertical cuts, significantly expanding the range of possible cutting operations and material configurations.
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
Enables the cutting unit to make oblique incisions and V-shaped grooves with variable angles, improving cutting performance and precision, and allowing cuts along curved paths, while reducing complexity and cost by eliminating the need for pneumatic systems.
Implementation Method 1
an electric drive motor with a rotating output shaft, which is connected to a linearly guided blade carrier carrying the cutting blade by a gear, which converts the rotation of the output shaft into an oscillating vibration movement of the blade carrier
Implementation Method 2
the oscillating drive can be pivoted together with the cutting blade about a pivot axis parallel to the material support surface, in order to change the angle of inclination of the axis of oscillation
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a device (10) for cutting and processing material (12) on a flat material support surface (20), with at least one cutting unit (30) which is motor-controlled above the material support surface (20) and is movable in the direction of an X and Y axis of a Cartesian coordinate system parallel to the material support surface (20) and comprises an oscillation drive (36) and a cutting blade (32), wherein the oscillation drive (36) sets the cutting blade (32) into linear oscillations, the axis of oscillation (46) of which is perpendicular to a feed direction of the cutting blade (32).In order to enable the oscillating cutting blade (32) to also produce inclined cuts (114) or V-grooves in the material (12), it is proposed according to the invention that the oscillation drive (36) with the cutting blade (32) can be pivoted about a pivot axis (106) parallel to the material support surface (20) by changing the inclination angle of the oscillation axis (46) relative to the material support surface (20).