Conical Dispersion Table with Multi-Frequency Vibration for Uniform Feeding
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Solution Overview
Problem
Conventional combination weighing devices face challenges in precisely distributing articles across multiple sections due to uneven dispersion from a single conical dispersion table, leading to quantitative deficiencies or excesses in some discharge sections, and existing solutions are inadequate for complex feeder systems.
Innovation Solution
A dispersing feed device with a conical dispersion table and multiple elastic units, each with distinct natural frequencies, is used to adjust the vibration frequency and amplitude, ensuring even distribution of articles across multiple sections by varying the feed direction and rate, and incorporating a control unit to detect and adjust for unevenness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single conical dispersion table is used to discharge articles to multiple radial feeders, then the device structure is simple, but the articles tend to concentrate on one side in circumferential direction causing quantitative deficiency or excess in discharge sections
Solution Approach 1:
The dispersion table is divided into multiple independent vibration zones, each controlled by separate vibration sources. This segmentation allows different circumferential sections to be independently adjusted, preventing article concentration on one side and achieving uniform distribution across all discharge sections.
Solution Approach 2:
The invention introduces multiple vibration sources that can be independently controlled in terms of frequency and amplitude. By dynamically adjusting the vibration parameters of different zones, the article flow distribution is optimized to prevent concentration and ensure quantitative balance across all radial feeders.
2Productivity
If vibration frequency is increased to improve article feed rate, then productivity increases, but article distribution uniformity deteriorates due to concentration in specific sections
Solution Approach 1:
By segmenting the dispersion table into multiple vibration zones with independent control, each zone can operate at optimized vibration frequencies. This allows high feed rates in some sections while maintaining uniform distribution, as each zone's vibration parameters can be independently tuned to prevent article concentration.
Solution Approach 2:
The invention enables independent adjustment of vibration frequency and amplitude parameters for different circumferential sections. This parameter control allows optimization of feed rate in each zone while maintaining overall distribution uniformity, resolving the contradiction between productivity and precision.
3Manufacturing precision
If multiple elastic units with different natural frequencies are added to control feed direction, then article distribution precision improves, but device complexity increases
Solution Approach 1:
The dispersion table is segmented into multiple zones, each equipped with its own vibration source and elastic support structure. This segmentation enables precise control of feed direction in each zone through independent vibration control, while the modular structure keeps the overall system manageable despite the increased number of components.
Solution Approach 2:
The multiple elastic units with different natural frequencies serve multiple functions: they provide structural support, enable vibration transmission, and allow independent control of feed direction. This multi-functionality reduces the need for separate control mechanisms, making the increased complexity more manageable.
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
The solution ensures proper and precise distribution of articles to multiple sections, enhancing the accuracy of combination weighing by preventing unevenness and adjusting feed amounts to targeted values.
Implementation Method 1
a first elastic unit inclinedly connected to the dispersing feed element, the first elastic unit having a first natural frequency; a second elastic unit connected to the dispersing feed element inclinedly in a direction different from the inclination direction of the first elastic unit, the second elastic unit having a second natural frequency which is different from the first natural frequency
Implementation Method 2
When a vibrating source generates a vibration having a frequency which is near the natural frequency of the first leaf spring, its upper end oscillates obliquely upward in the feed direction around its lower end, causing the oscillation to be transmitted to the bottom surface of the trough
Data Source
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AI summary
The present invention provides a dispersing feed device (20) including: a dispersion table (22) adapted to receive articles supplied from above and to feed the articles to multiple sections on the periphery of the dispersion table; a first elastic unit (41) inclinedly connected to the dispersion table (22), the first elastic unit having a first natural frequency; a second elastic unit (42) connected to the dispersion table (22) inclinedly in a direction different from the inclination direction of the first elastic unit (41), the second elastic unit having a second natural frequency which is different from the first natural frequency; and at least one vibrating source (32, 33) adapted to vibrate the dispersion table (22) through the first and second elastic units (41, 42).