Laser Head Dust Box Rollers for Plate Position Stability
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Solution Overview
Problem
In laser processing apparatuses, the reversal of the dust collecting unit's moving direction can cause dislocation of the plate material due to inertia, compromising precision and potentially damaging the lower surface of the plate material.
Innovation Solution
A laser processing apparatus is designed with a rotatable roller at the dust collecting unit's opening, synchronized with the conveying operation by a counter roller, which prevents dislocation by rotating in tandem with the conveying device, and non-contact support pads to maintain the plate material's position without direct contact, ensuring precise cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a roller is provided at the opening of the scrap box to support the lower surface of the plate material, then the plate material can be prevented from being damaged when moving the scrap box, but the position of the plate material may be shifted when reversing the moving direction of the scrap box due to inertia
Solution Approach 1:
The patent replaces the traditional mechanical roller support system with a magnetic field-based support system. The magnetic field exerts a holding force on the plate material without physical contact, eliminating the inertia-related dislocation problem while still preventing damage to the plate material's lower surface.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the scrap box and the plate material. This magnetic field mediator provides support and prevention of damage without the mechanical contact that causes dislocation during direction reversal, thus resolving the contradiction between protection and precision.
2Productivity
If the scrap box moves below the plate material and follows the laser head, then spatter can be collected effectively, but the plate material may dislocate when the scrap box reverses direction
Solution Approach 1:
The patent substitutes the mechanical roller support with a magnetic field-based support system that maintains plate material position stability during scrap box movement and direction reversal. This allows the scrap box to follow the laser head for effective spatter collection without causing plate material dislocation.
Solution Approach 2:
The patent employs a dynamic magnetic field support system that can adapt to the movement and direction changes of the scrap box. The magnetic field provides continuous support force that adjusts to maintain plate material position stability regardless of the scrap box's motion state, enabling both effective spatter collection and position stability.
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 configuration maintains precision during cutting operations by preventing dislocation and damage to the plate material's lower surface, allowing for effective and accurate laser processing even when reversing the dust collecting unit's direction.
Implementation Method 1
when reversing the moving direction of the scrap box while the conveying device is conveying the plate material in the conveying direction, since inertia causes the roller to keep rolling, the position of the plate material in contact with this roller may be shifted
Data Source
AI summary
A laser processing apparatus 3 includes: a laser head H; a conveying device 4 that conveys a workpiece W; a head driving mechanism that moves the laser head H; a dust collecting box 60 that moves below the workpiece W and follows the laser head H such that the dust collecting box 60 is disposed below the laser head H; an outer support roller 81 and an inner support roller 82 that are provided at an opening 61 of the dust collecting boz 60 and are rotatable around an axis parallel to a width direction orthogonal to a conveying direction Fy; and a counter roller 9 that rotates the outer support roller 81 in synchronization with a conveying operation of the workpiece W by the conveying device 4. The counter roller 9 transmits motive power of the conveying device 4 as a belt conveyor to the outer support roller 81.