Dual-Section Die Press Rollers for Material Pretreatment and Compaction
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Solution Overview
Problem
Conventional die presses do not achieve high efficiency in material processing across various application areas.
Innovation Solution
A die press design featuring rollers with dual axial sections, where one section is cylindrical and the other section is tapered, where the cylindrical surface exerts pressure perpendicular to the material track, while the other section laterally displaces the material, with the second axial section of the roller exerting lateral force on the material, and the second axial section of the roller, which tapers, facilitating pretreatment and subsequent compaction, respectively, to enhance material processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional cylindrical roller is used to press material through the die, then pressure is exerted perpendicular to the track, but material processing efficiency is not high
Solution Approach 1:
The roller is divided into two distinct axial sections: a first axial section with a cylindrical circumferential surface for conventional pressing, and a second axial section with a tapered circumferential surface for lateral displacement and pretreatment. This segmentation allows each section to perform its specific function optimally, thereby improving overall material processing efficiency without excessive complexity
Solution Approach 2:
Different portions of the roller are given different geometric properties: the first axial section has a uniform cylindrical shape that exerts pressure perpendicular to the material track, while the second axial section has a tapered shape that exerts lateral force on the material. This local differentiation of properties enables the roller to perform multiple functions (pretreatment and compaction) in a single pass, significantly enhancing productivity
2Productivity
If only a single cylindrical roller is used, then the structure is simple, but the material cannot be effectively pretreated before pressing
Solution Approach 1:
The roller combines two previously separate operations into a single component: the tapered second axial section performs pretreatment and lateral displacement, while the cylindrical first axial section performs compaction and pressing through the die. By merging these functions into one roller, the system achieves efficient material processing without requiring multiple separate rollers or complex operational sequences
Solution Approach 2:
The roller is designed as a multi-functional component where the tapered second axial section provides pretreatment and lateral displacement capabilities, while the cylindrical first axial section provides conventional pressing functionality. This universal design allows a single roller to perform multiple operations that would traditionally require separate devices, thereby improving productivity while maintaining ease of operation
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
The dual axial section rollers enable efficient pretreatment and compaction of materials, significantly increasing the processing efficiency of die presses.
Implementation Method 1
the second axial section of the roller exerts a force on the treated material, displacing it laterally as well
Implementation Method 2
pressure is exerted on the treated material in a conventional manner, the direction of which is essentially perpendicular to the track
Data Source
Figure 1
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Figure 4~5
AI summary
A die press comprising a die (20), a roller (31, 32), and a drive (16, 17). The die (20) has a raceway (24) with bores (21). The drive (16, 17) is designed to generate relative motion between the die (20) and the roller (31, 32), causing the first roller (31) and the second roller (32) to roll on the raceway (24) of the die (20). Each roller (31, 32) has a circumferential surface designed as a working surface (40). The working surface (40) comprises a first axial section (41) and a second axial section (42). In the first axial section (41), the circumferential surface is cylindrical. In the second axial section (42), the diameter of the roller (31) spanned by the circumferential surface tapers. The invention also relates to a method for treating a material resting on a die (20).