Slab Polishing Head Trajectory Control for Irregular Edge Contours
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Solution Overview
Problem
Existing slab polishing devices waste energy and produce poor edge polishing quality due to idle operation of the polishing head and untimely lifting/lowering, leading to issues like yellow edges or dark shadows at the edge positions.
Innovation Solution
A slab polishing and grinding device with a detection assembly that detects the outer and inner edge contours of slabs, determining polishing-head turning points and trajectories to adapt the polishing head's movement, allowing for adaptive polishing and grinding of irregular slabs, avoiding idle operation and energy waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the polishing head is lifted to avoid grinding the conveyor belt, then the polishing head prevents damage to the conveyor belt, but the polishing head operates idle and wastes energy
Solution Approach 1:
The detection assembly detects the outer edge contour of the slab in advance before the polishing head reaches the edge position. The control assembly uses this advance information to command the polishing head to lift and swing away from the edge contour position proactively, preventing idle operation and energy waste while still protecting the conveyor belt.
2Manufacturing precision
If the polishing head swings uniformly to cover the entire slab width, then the polishing head ensures complete coverage, but the polishing head performs idle operation at the edges and wastes energy
Solution Approach 1:
The polishing head's swing amplitude and trajectory are made dynamic rather than uniform. The control assembly adjusts the swing amplitude based on the detected outer edge contour position, reducing the swing range when approaching the edge. This dynamic adjustment eliminates idle operation at the edges while maintaining complete polishing coverage of the effective slab area.
3Reliability
If the polishing head is lifted and lowered at the edge contour position, then the polishing head avoids grinding the conveyor belt, but untimely lifting and lowering causes poor polishing effects at the edge
Solution Approach 1:
The detection assembly detects the outer edge contour position in advance, allowing the control assembly to initiate the polishing head lifting action before the polishing head reaches the exact edge contour position. This preliminary timing ensures that the polishing head maintains contact with the slab during the critical edge polishing phase, achieving both good edge polishing quality and conveyor belt protection.
4Productivity
If multiple polishing heads are used to polish the slab, then the polishing efficiency is improved, but the complexity of the device increases
Solution Approach 1:
The polishing head is equipped with dynamic adjustment capabilities in both the first direction (conveying direction) and second direction (width direction). The control assembly dynamically adjusts the position and swing amplitude of the polishing head based on real-time detection of the slab's outer edge contour, enabling a single polishing head to adaptively polish slabs of varying sizes and shapes, thereby improving productivity without increasing device complexity.
Data Source
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AI summary
The present application relates to a slab polishing and grinding device and a slab polishing and grinding method, where the slab polishing and grinding device includes: a conveying assembly provided with a conveying plane for conveying a slab; a polishing and grinding assembly disposed at an upper side of the conveying assembly, the polishing and grinding assembly including a polishing head unit swingable along a first direction and a second direction; a detection assembly located at a slab-entering end of the conveying assembly, and configured to detect an outer edge contour size of a peripheral outer side of the slab; where a plurality of polishing-head turning points are disposed on the outer edge contour of the slab, and a polishing and grinding trajectory is formed by planning according to the plurality of polishing-head turning points, the polishing head unit swinging along the polishing and grinding trajectory to polish and grind the slab.