Vibratory Conveyor Parallelogram Guide Mass Flow Control
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Solution Overview
Problem
Vibratory feeders face challenges in controlling mass flow output due to delayed response to changes in feeding quantity, leading to irregular material distribution and problems with both gravimetric and volumetric dosing, especially when the feeder element is irregularly filled.
Innovation Solution
The design incorporates a bearing arrangement with a parallelogram guide that decouples the base from vibrational oscillations, ensuring the drive arrangement moves only in the direction of vibration, thereby suppressing deviations in the vertical component of the vibrational movement between the front and rear ends of the feeder element, allowing for immediate and stable adjustment of mass flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the feeder element is irregularly filled or parameters change, then material distribution becomes unstable and mass flow output drifts, but the control response time is delayed
Solution Approach 1:
The patent implements feedback control by detecting the actual mass flow output and comparing it with the target value, then adjusting the driving parameters of the vibratory feeder accordingly. This closed-loop control system enables real-time correction of mass flow deviations, ensuring stable output while maintaining fast response time to parameter changes or irregular filling conditions.
2Object-affected harmful factors
If elastic support members are used to reduce vibrations, then noise and disturbance to nearby machines are reduced, but the bearing arrangement becomes more complex
Solution Approach 1:
The patent introduces elastic support members as intermediary elements between the driving support arrangement and the base. These elastic members act as mediators that absorb and dampen vibrations and reaction forces generated by the drive arrangement, preventing them from being transmitted to the base and causing noise or disturbance to nearby equipment, while maintaining a relatively simple overall structure.
3Adaptability or versatility
If the vertical component of vibrational movement varies between front and rear ends, then material distribution changes with feeding quantity parameters, but this causes delayed control response
Solution Approach 1:
The patent employs dynamic adjustment of the driving parameters (frequency, amplitude, throwing angle) of the vibratory feeder to maintain optimal material distribution across different feeding quantities. By dynamically adapting the vibration characteristics rather than allowing fixed geometric variations to dictate material flow, the system achieves both adaptability to different operating conditions and fast control response time.
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 immediate and precise control of mass flow output, reducing the formation of stationary material accumulations and improving the controllability of the vibratory feeder, ensuring consistent feeding even with changes in feeding quantity.
Implementation Method 1
The bearing arrangement (3) is designed according to the invention with means which, during operation of the vibratory feeder, suppress a deviation of the vertical component of the vibrational movement of the front end of the feeder element from that of the rear end
Implementation Method 2
the bearing of the vibration feeder must be formed from elastic support members or feet, for example, in order to reduce the vibrations of the drive arrangement introduced into the ground
Implementation Method 3
in order to reduce the vibrations of the drive arrangement introduced into the ground, since otherwise considerable noise can be generated and machines or systems nearby can be disturbed
Implementation Method 4
which then carries out a cyclic forward/upward movement with a corresponding return travel, i.e. the vibration, whereby the individual particles of the material are thrown forward at a throwing angle and at the same time slightly upwards
Data Source
AI summary
The invention relates to a vibratory feeder comprising a support arrangement (8), for carrying out a vibrational movement when in operation, for a feeder element in which material (12) which is to be fed is fed, also comprising a drive arrangement (5) for the support arrangement (8) and a bearing arrangement (3) which initiates vibrational oscillations of the vibratory feeder (1, 30, 40, 60, 90, 100) reducing in the base (2). Means which suppress a movement of the vertical components due to the vibratory movement of the front end (10a) of the feeder element from that of the rear end (10b) when the vibratory feeder (30, 40, 60, 90, 100) is in operation are provided. The mass flow emitted by the vibratory feeder (30, 40, 60, 90, 100) can be easily changed without a time delay which can therefore improve the control of the vibratory feeder.