Pellet Press Asynchronous Drive Compensation for Die Tipping
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Solution Overview
Problem
Existing pellet presses face challenges in reducing wear and optimizing pressing results, especially when producing wide, long, or asymmetrical pellets, as asymmetrical forces lead to tipping of die plates and force transmission bridges, causing increased wear and suboptimal pressing outcomes.
Innovation Solution
The method involves measuring tipping and asymmetrical forces during the pressing process, allowing the drive units to be moved asynchronously to compensate for these forces, using compensation elements and force measuring apparatus to maintain vertical alignment of spindle drives and prevent tipping of die plates and force transmission bridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If symmetrical pressing is used for common pellets, then good pressing result is achieved, but asymmetrical pellet shapes (wide, long, wedge-shaped) cause tipping of die plates and force transmission bridges leading to increased wear and suboptimal pressing outcomes
Solution Approach 1:
The patent applies dynamics by making the pressing system adaptive through real-time measurement and control adjustment. Force measuring apparatus detect asymmetrical forces during pressing, and the control apparatus dynamically adjusts drive unit operations to compensate for these forces, enabling reliable pressing of various pellet shapes including wide, long, and wedge-shaped pellets without tipping of die plates or force transmission bridges.
2Adaptability or versatility
If asymmetrical forces are absorbed by the tool guiding frame during pressing of special-shaped pellets, then various pellet shapes can be produced, but tipping of die plates and force transmission bridges occurs causing increased wear
Solution Approach 1:
The patent implements feedback by using force measuring apparatus to detect asymmetrical forces generated during pressing of special-shaped pellets. The control apparatus receives this feedback and adjusts the operation of drive units to compensate for the asymmetrical forces, preventing tipping and reducing wear on the pressing unit while maintaining the capability to produce various pellet shapes.
3Reliability
If synchronous operation of drive units is maintained, then vertical alignment of spindle drives is preserved, but asymmetrical loading causes tipping that cannot be compensated
Solution Approach 1:
The patent applies dynamics by transitioning from rigid synchronous operation to dynamic asynchronous operation. The control apparatus adjusts drive unit operations based on real-time force measurements, allowing temporary asynchronous operation to compensate for asymmetrical forces while maintaining vertical alignment of spindle drives, thus enabling both reliability and adaptability.
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 approach reduces wear and achieves optimal pressing results for various pellet shapes by compensating for asymmetrical forces, ensuring consistent vertical alignment and minimizing wear on the pressing unit.
Implementation Method 1
at least one upper compensation element is arranged respectively between the upper spindle nuts and the upper force transmission bridge, and/or wherein at least one lower compensation element is arranged respectively between the lower spindle nuts and the lower force transmission bridge
Data Source
AI summary
The invention relates to a method for producing a pellet from powdered material with the method steps: during a pressing process, a tipping of the upper and/or lower force transmission bridge and/or the upper and/or lower die plate and/or a force causing this tipping is measured; depending on the determined measurement results, the upper drive units and/or the lower drive units are moved asynchronously in relation to each other during the pressing process such that the caused tipping is compensated.