Cutting Machine Guide Parts for Clean Jet Control
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Solution Overview
Problem
Existing cutting machines for metal, cardboard, paper, or plastic materials using laser or plasma jets face issues with uncontrolled cutting jets and material particles settling on the workpiece, leading to contamination and turbulence, and struggle to securely hold the material during cutting.
Innovation Solution
The implementation of guide parts on both sides of the cutting gap, shaped as strips parallel to the cutting gap, with gas inlet or outlet openings that direct the cutting jet and create a suction effect to prevent particle settlement and maintain material stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If gas is blown laterally onto the spray plume far below the cutting point, then material particles are oxidized and ignition risk is reduced, but the workpiece surface becomes contaminated by material particles due to turbulence
Solution Approach 1:
The patent introduces a guide part as an intermediary component between the cutting gap and the workpiece surface. This guide part with gas outlet openings directs gas flow to influence the spray plume trajectory, serving as a mediator that controls particle deposition without directly blowing gas onto the workpiece surface, thus preventing contamination while maintaining oxidation effectiveness
Solution Approach 2:
The patent applies gas flow from a lateral dimension through the guide part structure. By positioning gas outlet openings in the guide part that directs flow perpendicular to the cutting direction, the system influences particle trajectory in a third spatial dimension, redirecting the spray plume away from the workpiece surface without creating turbulence at the cutting point
2Device complexity
If the cutting jet exits the cutting gap uncontrolled, then the cutting process is simple, but the cutting jet moves uncontrollably in different directions causing particle deposition on the workpiece
Solution Approach 1:
The guide part serves as an intermediary structure that the cutting jet passes through. This mediator component provides structural guidance and direction control to the cutting jet without requiring complex active control systems. The gas outlet openings in the guide part further assist in stabilizing the jet direction through controlled gas flow, achieving precision through a relatively simple passive structure
Solution Approach 2:
The guide part creates a structured flow path that equalizes the pressure and flow conditions for the cutting jet. By providing a defined geometry with gas outlet openings, the system establishes consistent flow conditions that naturally guide the jet in a controlled direction, reducing uncontrollable deviations without adding complex control mechanisms
3Device complexity
If no guide structure is used, then the device structure is simple, but the material surfaces adjacent to the cutting gap are not held at the same height
Solution Approach 1:
The guide part performs multiple functions simultaneously: it guides the cutting jet direction, controls gas flow to prevent particle deposition, and maintains material surface height consistency. By integrating these functions into a single structural component with gas outlet openings, the patent achieves precise surface height control without proportionally increasing device complexity
Solution Approach 2:
The guide part acts as an intermediary structure between the cutting head and the workpiece. This mediator component provides mechanical guidance and positioning that ensures material surfaces remain at consistent heights during cutting, while also managing gas flow and jet direction control in a unified structure
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 reliably guides the cutting jet and prevents material particles from settling on the workpiece, ensuring a clean surface and securely holding the material at consistent height during cutting, enhancing the cutting process's precision and cleanliness.
Implementation Method 1
a surface of the respective guide part is arranged parallel to the underside of the plate-shaped material, with which the respective guide part rests against the underside of the plate-shaped material or which forms a narrow gap with the underside through which gas flows
Implementation Method 2
the gas outlet opening or gas outlet nozzle in the gap between the underside of the workpiece and the surface of the guide part creates a suction effect on the underside of the plate-shaped material due to the hydrodynamic paradox effect
Implementation Method 3
the gas outlet opening or gas outlet nozzle in the gap between the underside of the workpiece and the surface of the guide part creates a suction effect on the underside of the plate-shaped material due to the hydrodynamic paradox effect
Data Source
AI summary
The invention relates to a device on a cutting machine for cutting strip-shaped or flat material composed of metal, cardboard, paper, or plastic by means of a laser beam, water jet, or plasma jet, characterized by at least one guiding part, which is arranged near the cutting gap on the side of the flat material facing away from the cutting head and has or bears at least one gas outlet opening or gas outlet nozzle, the exiting gas of which is directed at the beam or jet exiting the cutting gap.