Continuous Ceramic Powder Compaction with Real-Time Density Control
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Solution Overview
Problem
Current ceramic powder compacting machines face challenges in precisely and efficiently regulating density, leading to inconsistencies and waste, especially in continuous compaction processes, where the distribution of compacting pressure is difficult to assess and control.
Innovation Solution
A machine with a compacting device, conveyor assembly, detection device, and control system that continuously monitors and adjusts the density of compacted ceramic powder by varying the quantity and thickness of the powder supplied, using a combination of rollers and pressure belts to exert pressure and control the compacting force, and a cutting assembly to produce uniform slabs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional discontinuous pressing machines with rigid moulds are used, then density can be controlled through compacting pressure, but productivity is reduced due to discontinuous operation
Solution Approach 1:
The patent applies dynamics by transitioning from static rigid moulds to a dynamic continuous pressing system with a moving belt conveyor. The pressing mechanism moves continuously along the belt, enabling continuous production while maintaining density control through regulated pressing force application across different zones of the belt.
Solution Approach 2:
The invention implements continuity of useful action by replacing discontinuous batch pressing with a continuous pressing process. The belt conveyor moves continuously through the pressing zone, allowing uninterrupted production of compacted ceramic layers while maintaining consistent density through controlled pressing parameters throughout the continuous operation.
2Productivity
If continuous compaction machines with belt conveyors are used, then productivity increases, but density regulation becomes difficult due to distributed force application
Solution Approach 1:
The pressing system is segmented into multiple independent pressing zones along the belt conveyor, each capable of applying controlled pressure. This segmentation allows the complex distributed force application to be broken down into manageable zones, each contributing to the overall density control of the compacted layer.
Solution Approach 2:
The patent applies local quality by enabling different pressing forces to be applied at different locations along the belt conveyor. Each zone can be independently regulated to apply the appropriate pressure for achieving uniform density across the entire compacted layer, addressing the difficulty of density regulation in continuous systems.
3Measurement precision
If mercury immersion method is used for density measurement, then measurement precision is high, but the process becomes destructive and laborious
Solution Approach 1:
The patent replaces the mechanical mercury immersion method with a non-contact measurement system. The detection device uses optical or electromagnetic fields to measure density characteristics of the compacted layer without physical contact or destruction of the sample, eliminating the need for mercury and destructive sampling while maintaining measurement capability.
Solution Approach 2:
The invention introduces an intermediary detection device that measures density characteristics indirectly without requiring direct immersion in mercury. This intermediary measurement system provides the necessary density information for control purposes while avoiding the harmful and laborious aspects of the traditional method.
4Manufacturing precision
If compacting pressure is increased to improve density, then manufacturing precision improves, but energy consumption increases
Solution Approach 1:
The patent applies parameter changes by optimizing the pressing force distribution along the belt conveyor rather than applying uniformly high pressure. By adjusting pressure parameters across different zones and utilizing the continuous motion of the belt, the system achieves consistent density with reduced overall energy consumption compared to conventional high-pressure discontinuous pressing.
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 automatic and precise control of compaction density, reducing waste and ensuring consistent production of ceramic articles by dynamically adjusting the powder supply based on real-time density measurements, thereby improving the efficiency and quality of the compacting process.
Implementation Method 1
a detection device (8), designed to detect the density of the layer of compacted ceramic powder (KP)
Implementation Method 2
a compacting device (2), designed to compact the ceramic powder (CP) so as to obtain a layer of compacted ceramic powder (KP)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Machine and method for compacting ceramic powder (CP); a layer of non-compacted ceramic powder (CP) is conveyed in a feed direction (A) through a compacting device (2); downstream of the compacting device (2) there is positioned a detection device (8) which detects the density of the layer of compacted ceramic powder (KP); the quantity of ceramic powder (CP) fed to the compacting device (2) is varied in time as a function of what is detected by the detection device (8) to thus regulate the density of the layer of compacted ceramic powder (KP).