C-Shaped Transfer Press Ram for Single-Drive Tool Control
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Solution Overview
Problem
Existing transfer presses have complex drive control systems and large dimensions due to separate mechanical assemblies for forming and demoulding, leading to increased effort and cost in production, operation, and maintenance.
Innovation Solution
A transfer press design with a rigidly connected ram head and ram foot, allowing a single drive to control both upper and lower tools, and a compact structure that simplifies kinematics and reduces material usage, while maintaining precise guidance through a stable and efficient power transmission system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate mechanical assemblies are used for forming and demoulding, then the functions are clearly separated and controllable, but the device complexity and dimensions increase
Solution Approach 1:
The patent merges the forming and demoulding functions into a single integrated ram assembly. The upper tools for forming and lower tools for demoulding are both mounted on the same ram, which moves as one unit. This eliminates the need for separate mechanical assemblies while maintaining both functions through careful tool positioning and timing control within the single ram stroke cycle.
2Adaptability or versatility
If separate mechanical assemblies are used for forming and demoulding, then each function can be optimized independently, but the production and maintenance costs increase
Solution Approach 1:
By combining forming and demoulding tools on a single ram assembly, the patent reduces the total number of mechanical components that need to be manufactured, assembled, and maintained. The single ram structure requires fewer bearings, guides, and drive mechanisms compared to separate assemblies, directly reducing production and maintenance costs while still allowing independent optimization of upper and lower tool geometries.
3Device complexity
If a single drive controls both upper and lower tools, then the drive control is simplified, but the guidance accuracy may be compromised
Solution Approach 1:
The patent achieves both simplified drive control and maintained guidance accuracy by mounting both upper forming tools and lower demoulding tools on a single rigid ram assembly. The single drive controls the entire assembly's position, while the rigid structure of the ram ensures that both tool sets move with high precision and maintain their relative positions, preserving guidance accuracy without complex control systems.
4Manufacturing precision
If separate rams are used for forming and demoulding, then the guidance accuracy is maintained, but the overall press dimensions increase
Solution Approach 1:
The patent consolidates both forming and demoulding functions into a single ram assembly, dramatically reducing the overall press dimensions. By eliminating the need for separate upper and lower rams and their associated guide ways and support structures, the press footprint and moving component volume are minimized while the single ram's rigid construction maintains the necessary guidance accuracy for precise tool positioning.
Data Source
AI summary
The invention relates to a transfer press for successive forming and demoulding of work pieces by means of upper and lower tools in dies, wherein the upper tools are attached to a ram head, while the lower tools are installed on a ram foot. The ram head and the ram base are rigidly connected to each other and form a ram.