Feeder Automatic Operation Control for Asphalt Pavers
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Solution Overview
Problem
Conventional feeders used in road finishers are operationally complex, requiring manual and individual setting of working units, making them dependent on operator experience and limiting quick delivery rate adjustments.
Innovation Solution
The feeder features automatic operation modes for working units, with a main conveyor switch starting all units set to automatic mode with specified parameters, simplifying operation and allowing adjustable operating parameters, and a display panel for monitoring and adjusting settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual individual setting of each working unit is used, then the feeder can be operated with basic functionality, but the operation becomes complicated and dependent on operator experience
Solution Approach 1:
The control unit automatically manages the operation of multiple working units based on a single command. When the main conveyor is activated, the control unit autonomously starts and coordinates the auxiliary conveying units, scrapers, vibrators, and heaters without requiring manual intervention for each device, making the system serve itself
Solution Approach 2:
The control unit serves multiple functions by managing different types of working units (conveyors, scrapers, vibrators, heaters) through a single interface. The main conveyor switch acts as a universal control element that triggers coordinated operation of all auxiliary units, reducing the number of control elements needed
2Productivity
If multiple working units are provided to improve conveying process, then the conveying capacity is enhanced, but the operation becomes more complex and time-consuming
Solution Approach 1:
The control unit is pre-programmed with the sequence and parameters for starting auxiliary working units. When the main conveyor is activated, the control unit immediately executes the pre-planned sequence of starting scrapers, vibrators, and heaters, eliminating the time required for manual setup and adjustment of each unit
3Adaptability or versatility
If individual manual adjustment of working units is required, then each unit can be precisely controlled, but quick changes in delivery rate become difficult
Solution Approach 1:
The control functions for multiple working units are merged into a single control system. The main conveyor switch and control unit coordinate all auxiliary units simultaneously, allowing delivery rate changes to be achieved through a single control action rather than adjusting each unit separately
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a feeder (B) for conveying asphalt mix to a road paver, wherein the feeder has several working units (M, Q, 5, 10) and an operating area (12). According to the invention, an automatic operation can be set at the operating area (12) for at least one of the working units, and a main conveying switch (15) is provided, the actuation of which puts all units set to automatic operation into operation with defined operating parameters.