Dosing Device Vibration Decoupling for Accurate Granule Measurement
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Solution Overview
Problem
Existing dosing devices for free-flowing substances, such as plastic granules, face challenges in achieving accurate measurement results due to vibrations and movements from processing machines and controllable valves, leading to deviations in quantity information and reduced dosing accuracy.
Innovation Solution
The dosing device employs vertical support elements with joints to mechanically decouple the measuring device from the processing machine, using a carrier element with spring elements and load cells for damping and precise weight measurement, and a housing with vibration-damping connections to minimize interference from environmental and operational vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the dosing device is rigidly connected to the processing machine, then structural stability is improved, but measurement precision deteriorates due to transmitted vibrations and movements
Solution Approach 1:
The patent introduces vertical support elements with joints as intermediary components between the processing machine and the dosing device. These support elements act as a mechanical mediator that allows controlled movement and vibration isolation, enabling the dosing device to maintain both structural stability and measurement precision by decoupling it from machine vibrations while preserving positional stability.
2Measurement precision
If measurement time is extended to average multiple values, then measurement precision improves, but productivity deteriorates due to longer dosing cycle times
Solution Approach 1:
The patent implements preliminary vibration damping through the joint-connected vertical support elements before measurements are taken. By pre-establishing a stable measurement environment that filters out vibrations, the system achieves accurate measurements with fewer sampling cycles, thus maintaining high dosing speed without sacrificing measurement precision through extended averaging times.
3Measurement precision
If the dosing device is positioned away from the processing machine to reduce vibrations, then measurement precision improves, but device complexity increases due to additional mounting structures
Solution Approach 1:
The patent segments the dosing device into modular components connected by vertical support elements with joints. This segmentation allows the measuring device to be positioned at an optimal distance from vibration sources while maintaining a compact, integrated structure. The modular design achieves vibration isolation without requiring complex external mounting structures, as each segment is self-contained and easily assembled.
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 significantly improves measurement accuracy by damping machine-induced vibrations and allowing continuous, precise dosing with reduced interference, enabling reliable and precise dosing of small quantities.
Implementation Method 1
The dosing device has at least two vertical support elements arranged parallel and spaced apart from one another and a carrier element arranged in a first end region of the vertical support elements and connected to each vertical support element by at least one joint... the carrier element and the mounting device are displaced parallel to one another when the carrier element and the mounting device are deflected relative... the influences of the further processing machine that interfere with the measurement are weakened
Implementation Method 2
the carrier element and the mounting device are displaced parallel to one another when the carrier element and the mounting device are deflected relative
Implementation Method 3
a weight of the quantity of granules currently present in the measuring device is recorded by the measuring device
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The metering device (1) has two vertical support elements (4) arranged parallel and spaced to each other, and a carrier element (7) connected with each vertical support element by a joint, where the carrier element is arranged in an end area of the vertical support elements. A mounting unit (2) is arranged in another end area of the vertical support elements and is connected with each support element by the joint, so that the carrier element and the mounting unit are moved parallel to each other during a relative displacement of the carrier element and the mounting unit.