Multi-Point Punching Press Layout for Uniform Die Pressure
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Solution Overview
Problem
Conventional punching devices experience uneven punching pressure due to the arrangement of cutting blades and manufacturing errors in the punching die, leading to incomplete punching in areas with low pressure, and require a dedicated drive source for adjusting this pressure.
Innovation Solution
A punching device with a moving mechanism that includes multiple pressurizing mechanisms with different horizontal positions, driven by independent drive sources, allowing for adjustable punching pressure without a dedicated drive source for pressure adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single drive source is used to move the moving platen for punching, then the device structure is simple, but the punching pressure becomes uneven due to blade arrangement and manufacturing errors
Solution Approach 1:
The single drive source is segmented into multiple drive sources (first and second drive sources) positioned at different horizontal locations. Each drive source independently drives a pressurizing mechanism that applies pressure to the moving platen at its specific position, enabling localized pressure adjustment to compensate for uneven punching caused by blade arrangement and manufacturing variations.
Solution Approach 2:
Different regions of the moving platen are pressurized with different forces by the multiple drive sources. The first drive source adjusts pressure at its horizontal position while the second drive source adjusts pressure at a different horizontal position, creating locally optimized pressure distribution across the workpiece to ensure uniform punching quality throughout.
2Manufacturing precision
If a dedicated drive source is added for punching pressure adjustment, then the punching pressure uniformity is improved, but the device complexity and cost increase
Solution Approach 1:
The drive sources serve dual functions: they simultaneously drive the moving platen for punching and adjust the punching pressure by controlling the pressurizing mechanisms. This eliminates the need for separate dedicated pressure adjustment drive sources, reducing device complexity while maintaining uniform punching pressure through the pressurizers positioned at different horizontal locations.
3Manufacturing precision
If multiple pressurizing mechanisms with independent drive sources are used, then the punching pressure can be adjusted to be uniform, but the device complexity increases
Solution Approach 1:
The pressurizing mechanisms are merged with the existing moving mechanism structure. The multiple drive sources and pressurizing mechanisms are integrated into the platen assembly, sharing structural components and control systems with the punching mechanism, thereby reducing overall device complexity while maintaining the capability for uniform pressure adjustment across different horizontal positions.
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 enables uniform punching pressure across the workpiece, eliminating incomplete punches and optimizing the use of drive sources by integrating pressure adjustment into the existing moving mechanism.
Implementation Method 1
a plurality of pressurizing mechanisms that pressurize the moving platen toward the facing platen with a plurality of pressurizers having different positions in a horizontal direction from one another, respectively
Data Source
AI summary
A die cutter including: a moving platen and a fixed platen; a moving mechanism structured to cause the moving platen to vertically move toward the fixed platen; and a controller structured to control the moving mechanism, wherein the die cutter punches a sheet material with a punching die attached to the fixed platen by bringing the moving platen closer to the fixed platen using the moving mechanism, and the moving mechanism includes: four lift transmission mechanisms structured to pressurize the moving platen upwardly with four pressurizers having different positions in a horizontal direction from one another; and four press motors structured to drive the lift transmission mechanisms, respectively.