Forging Press Lubrication Segment for Early Tool Cooling
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Solution Overview
Problem
Existing forging machines face challenges in efficiently lubricating tools due to delayed lubricant application, leading to increased heat retention, reduced tool life, and higher lubricant consumption, particularly in high-cycle or short-stroke operations, where stationary nozzles result in inefficient heat dissipation and excessive lubricant usage.
Innovation Solution
A forging machine design featuring adjustable bases with a lubricating segment that moves kinematically with the machine, allowing for early and optimal lubricant application close to the tools, utilizing a pivot arm and spring mechanism to position nozzles effectively, and independent lubricant circuits for precise control and reduced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If stationary nozzles are used for lubrication, then rapid lubricant supply is ensured, but the distance between nozzle and tool surface causes significant lubricant losses through spraying
Solution Approach 1:
The patent applies the dynamics principle by making the lubrication nozzle movable rather than stationary. The nozzle is coupled to the ram and moves together with it during the pressing cycle, allowing the nozzle to maintain a constant, minimal distance from the tool surface throughout the operation. This dynamic positioning eliminates lubricant spray losses while ensuring continuous, rapid lubricant supply to the working area.
2Reliability
If stationary nozzles are used, then lubrication can be applied, but only after the working stroke is completed causing delay in heat dissipation
Solution Approach 1:
The patent applies preliminary action by enabling lubricant application to begin during the working stroke itself, rather than waiting for its completion. Since the nozzle moves with the ram, lubrication can start immediately when the ram begins its upward movement, significantly reducing the delay in heat dissipation and allowing the lubrication process to overlap with the end of the forming operation.
3Reliability
If stationary nozzles are positioned, then lubrication is possible, but at an unfavorable angle due to limited positioning options reducing heat dissipation efficiency
Solution Approach 1:
The movable nozzle design allows the spray angle to be dynamically optimized during the pressing cycle. The nozzle can be positioned and angled to achieve optimal coverage of the tool surface and forged piece, improving heat dissipation efficiency. The ability to adjust the nozzle position and orientation during operation enables much better lubrication application compared to fixed stationary nozzles.
4Length of moving object
If lubrication nozzles are arranged in the die assembly, then lubrication paths are shortened, but the system becomes technically more demanding and harder to apply to existing machines
Solution Approach 1:
The patent applies universality by designing a lubrication system that can be implemented on existing forging presses without requiring modifications to the die assembly or tooling. The movable nozzle system uses the existing ram movement and provides a universal solution that works with different die configurations, avoiding the technical complexity and customization requirements of integrated die-based lubrication systems.
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 solution enables timely and efficient lubrication, reducing lubricant consumption, improving heat dissipation, and extending tool life by allowing lubricant application during the working stroke, thus minimizing heat retention and production cycle delays.
Implementation Method 1
In addition, the forging machine has a preloaded spring, wherein the spring is attached at its first end to the first base and at its second end to the lubricating segment and/or support segment. The force generated by the preload presses the lubricating segment in the direction of action into the home position relative to the first tool.
Data Source
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AI summary
The invention relates to a forging machine which comprises two bases, which can be moved together between the contact position and the drawn-back position, and an intermediate space between these bases, wherein the first base has a first working tool and the second base has a second working tool and the working tools are designed for pressing an object lying between them together with a form fit, characterized in that it also comprises a carrying segment, mounted on which is a lubricating segment (1), which is movable in the intermediate space, is intended for spraying the first and second working tools with the lubricant and, with the bases in their drawn-back positions, is in its starting position with respect to the first working tool, and the lubricating segment (1) or the carrying segment is mounted on the forging machine in such a way that, when the bases move towards each other and the lubricating segment (1) or the carrying segment is brought into contact with the second base, this lubricating segment is moved, together with the second base, towards the first base or is pushed away from the second base in the direction of the first base and, when the bases move away from one another, it is gradually returned to the starting position.