Extrusion Press Layout With Vertical-to-Horizontal Force Transfer
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Solution Overview
Problem
Existing extrusion systems face limitations in power due to the use of horizontal axis presses, necessitating an arrangement that can achieve higher thrust capabilities.
Innovation Solution
An extrusion system incorporating a vertical axis press and a horizontal axis die, utilizing a movement transformation system that converts vertical slider movement into horizontal piston movement through a rack-and-pinion mechanism or an articulated arm, enabling higher power utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a horizontal axis press is used in the extrusion system, then the system structure is simple, but the power and thrust capability are limited
Solution Approach 1:
The patent transitions from a horizontal axis press to a vertical axis press, changing the operational dimension from horizontal to vertical. This dimensional change enables the use of heavier, more powerful presses that exploit gravitational force and structural stability in the vertical orientation, thereby increasing power and thrust capability while managing complexity through the movement transformation system.
Solution Approach 2:
The movement transformation system acts as an intermediary mechanism between the vertical slider and the horizontal piston. This intermediary converts vertical motion into horizontal motion, allowing the system to leverage the high power of vertical presses while still achieving the required horizontal extrusion force, thus resolving the contradiction between power enhancement and structural complexity.
2Power
If a vertical axis press is used with a movement transformation system, then higher power is achieved, but the device complexity increases
Solution Approach 1:
The movement transformation system serves as a necessary intermediary that bridges the vertical press mechanism and the horizontal extrusion requirement. By introducing this intermediate mechanism, the system can access higher power from vertical presses while maintaining the functional requirement of horizontal piston movement, thus achieving power enhancement at the cost of controlled complexity increase.
Solution Approach 2:
The movement transformation system is designed to perform multiple functions: converting vertical to horizontal motion, transmitting force efficiently, and synchronizing the motion of sliders and pistons. This multi-functionality justifies the added complexity by consolidating several requirements into a single integrated mechanism, thereby achieving higher power without excessive complexity.
3Loss of energy
If horizontal piston movement is used, then the extrusion process is straightforward, but friction losses are higher
Solution Approach 1:
The patent inverts the traditional approach by using vertical piston movement instead of horizontal movement. This inversion reduces friction losses because vertical movement minimizes contact friction between the piston and cylinder walls compared to horizontal movement. The movement transformation system then converts this vertical motion back to horizontal extrusion action, achieving energy efficiency while maintaining operational effectiveness.
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
Enables the use of a press with significantly higher power, reducing friction losses and enhancing the efficiency of the extrusion process.
Implementation Method 1
each movement transformation system includes a pinion the rotation axis of which is horizontal and perpendicular to the direction of movement in translation of the piston, a first rack that meshes with the pinion and is secured to the slider, and a second rack that meshes with the pinion and is secured to said piston
Data Source
AI summary
An extrusion system including a press with a chassis, a slider mounted to be mobile vertically on the chassis and an actuating arrangement that moves the slider, a hollow container receiving a billet and having at one end an extrusion die and at the other end a piston mobile in translation horizontally in the container, and a movement transformation system arranged between the slider and the piston to transform the vertical movement in translation of the slider into horizontal movement in translation of the piston. With an arrangement of this kind, it is possible to use a press of higher power.