Switching Valve Control System for Reciprocating Slat Conveyors

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Solution Overview

Problem

Existing reciprocating slat-type conveyor systems lack efficient and safe methods for changing the direction of conveyance and managing multiple operating modes, particularly in multi-operating-mode adaptable systems, which can lead to operational inefficiencies and safety concerns.

Innovation Solution

A switching valve control system incorporating a unique hydraulic module, magnetic sensor module, and electronic control module, featuring a solenoid operated four-way valve and poppet-type seals, allows for safe and efficient direction change and mode management in reciprocating slat conveyors by using sensors to control fluid flow and valve positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional switching valve system is used to control reciprocating slat conveyors, then the basic direction control function is provided, but the system lacks efficiency and safety in changing conveyance direction and managing multiple operating modes

Engineering Contradiction:
ImprovesafetyVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system is segmented into distinct functional modules: a switching valve module with inner and outer control valves for direction control, a sensor module for position detection, and an electronic control module for logic processing. This segmentation allows each module to be optimized independently while improving overall safety and reliability without requiring complete system redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an electronic control module as an intermediary between the sensor inputs and the switching valve outputs. This intermediary processes sensor signals and generates appropriate control signals for the switching valve, enabling safe and efficient direction changes and mode transitions without direct mechanical linkage or complex mechanical control mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If mechanical linkages or manual controls are used for direction changes, then the system structure is simpler, but operational efficiency and safety are reduced

Engineering Contradiction:
Improveoperational efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical linkages and manual controls with an electronic control system. Magnetic sensors detect slat position and convey this information to the electronic control module, which then actuates the switching valve via electrical signals. This substitution eliminates the need for complex mechanical control linkages while significantly improving operational efficiency and safety through automated, precise control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The control system incorporates self-service capabilities through automated sensor-based detection and electronic control logic. The magnetic sensors automatically detect slat positions, and the electronic control module automatically generates appropriate control signals for direction changes, eliminating the need for manual intervention and improving operational efficiency without requiring additional mechanical components.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If a simple switching valve system is used, then the device complexity is lower, but the ability to manage multiple operating modes and ensure safety is insufficient

Engineering Contradiction:
Improvemode management capabilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The switching valve control system is designed with multi-functionality to handle various operating modes including forward motion, reverse motion, and different slat group configurations. The electronic control module receives inputs from magnetic sensors and generates appropriate control signals for the switching valve to accommodate multiple operating modes, providing adaptability without requiring separate control systems for each mode.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system enhances safety and operational efficiency by enabling seamless direction changes and mode transitions in reciprocating slat conveyors, improving the control and reliability of the conveyor systems.

Implementation Method 1

a solenoid operated four-way valve

Methodology Applied
Scientific EffectSolenoid: Solenoid

Implementation Method 2

magnetic sensor module

Methodology Applied
Scientific EffectMagnetic sensor: Hall Effect

Data Source

PatentUS9897113B2Switching valve control system
Publication Date: 2018.02.20 HALLCO INDS
  • US9897113B2 patent drawing
  • US9897113B2 patent drawing
  • US9897113B2 patent drawing

AI summary

A switching valve module which is part of a switching valve control system for use with reciprocating slat-type conveyors is disclosed herein. Disclosed herein is a switching valve module that includes an inner control valve and an outer control valve. A spool is positioned within the inner control valve and a spool positioned within the outer control valve. Movement of each the spool creates both a spool-type seal and a poppet-type seal between the spool and the respective control valve.