Vibro-Compression Press Ram with Synchronized Eccentric Vibrators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing press configurations for vibro-compression of agglomerated or ceramic materials face challenges in achieving uniform compaction across wider surfaces, as increasing the width of the press ram leads to non-uniform force distribution and mechanical stress, limiting the ability to compact articles beyond a certain width effectively.
Innovation Solution
A press design featuring a ram with two sets of vibrating devices, each with rotating shafts and eccentric masses, where the shafts are interconnected via kinematic means such as toothed belts to ensure synchronized rotation and phase opposition, allowing for a modular system that generates a uniform vertical vibratory movement while canceling out horizontal components, thereby enabling effective compaction of wider articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the press ram is increased to compact wider articles, then the compaction coverage area is improved, but the force distribution becomes non-uniform and mechanical stress increases
Solution Approach 1:
The press ram is divided into multiple independent vibrating devices (at least three) arranged in rows, each capable of generating vibration independently. This segmentation allows the ram to maintain uniform force distribution across wider surfaces while avoiding the mechanical stress problems associated with increasing the width of a single monolithic ram structure.
2Area of stationary object
If multiple rows of vibrators are used to increase compaction width, then the compaction coverage area is improved, but the horizontal force components do not cancel out properly causing anomalous mechanical stresses
Solution Approach 1:
The vibrating devices are arranged in an asymmetric configuration where at least one row is positioned offset from the central plane of the press. This asymmetric arrangement, combined with counter-rotation of adjacent rows, ensures that horizontal force components cancel out while maintaining balanced vertical compaction forces, thereby eliminating anomalous mechanical stresses on the press structure.
3Manufacturing precision
If the number of vibrators in each row is increased to maintain uniformity, then the vibrating force uniformity is improved, but the device complexity increases
Solution Approach 1:
Different rows of vibrating devices can have different numbers of vibrators depending on the local compaction requirements. The first row may have a different count compared to the second row, allowing optimization of vibrating force distribution across the width without uniformly increasing the total number of vibrators, thus managing device complexity while maintaining uniformity where needed.
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 design ensures uniform and efficient vibro-compression across a wider surface area, maintaining planar arrangement and preventing deformation, allowing for the compaction of articles with widths greater than previously possible without reducing the vibratory movement.
Implementation Method 1
each device being provided with at least one rotating shaft with an eccentric mass
Implementation Method 2
said sealed chamber is connected to air extraction and vacuum generating means able to form the vacuum inside the chamber itself
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A press (10) for vacuum vibro-compression of slabs or blocks or articles of agglomerated or ceramic material comprises a ram with a pressing surface (52) provided with means (100, 200) for generating a vibratory movement, which comprise a first and a second set of vibrating devices (111), each device being provided with at least one rotating shaft with an eccentric mass. The shafts of the vibrating devices (111) of one set rotate in the opposite direction to the shafts of the vibrating devices of the other set. Each set comprises at least two vibrating devices which are arranged with their respective axes not coaxial and interconnected by kinematic connection means (241, 242,...250, 261, 262,... 270) for rotating in synchronism.