Molding Machine Hydraulic Valve Control With Centralized Feedback
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Solution Overview
Problem
Current hydraulic systems in molding machines are complex and inefficient due to separate valve control systems from different manufacturers, lacking feedback to the machine control system, which hinders optimization and simplification of control interventions.
Innovation Solution
Integrating the valve regulation directly into the machine control system, eliminating the need for separate valve control systems and electronics, allowing the machine control system to receive and process sensor data for targeted valve control and optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate valve control systems from different manufacturers are used, then the hydraulic system can be assembled with components from multiple manufacturers, but the device complexity increases and feedback to the machine control system is lost
Solution Approach 1:
The patent merges the previously separate valve control systems into the central machine control system. The machine control system now directly controls the hydraulic valves without intermediate separate control units, eliminating the need for multiple control interfaces and reducing overall system complexity while maintaining the ability to use components from different manufacturers.
Solution Approach 2:
The machine control system is enhanced to perform multiple functions: it now directly controls hydraulic valves in addition to its existing machine coordination functions. This multi-functionality eliminates the need for separate dedicated valve control systems and enables centralized control of all hydraulic operations.
2Ease of manufacture
If separate valve control systems are used, then valve control can be implemented according to manufacturers' notions, but feedback information is not returned to the machine control system
Solution Approach 1:
The patent implements direct feedback loops where sensor signals from the hydraulic system are fed back to the machine control system. This enables the central control system to receive real-time information about valve positions, pressures, and flow rates, allowing for closed-loop control and optimization of hydraulic operations.
3Reliability
If complex and powerful valve control systems are used, then complete control functionality is achieved, but processor power is wasted and maintenance complexity increases
Solution Approach 1:
The patent extracts the valve control functionality from separate complex control systems and integrates it into the existing machine control system. This eliminates redundant processing power requirements and reduces maintenance complexity by consolidating control functions into a single centralized system rather than multiple separate systems.
Data Source
AI summary
A hydraulic system for a molding machine with a hydraulic valve, includes an actuator for positioning the hydraulic valve, a machine control system realized separate from the hydraulic valve, a first signal connection between the machine control system and the hydraulic valve, and a sensor. The sensor is signal-connected to the machine control system via a second signal connection, and the machine control system is formed to carry out a valve regulation of the hydraulic valve on the basis of measured values of the sensor.