Injection Molding Core Pull Control Using Conversion Tables
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Solution Overview
Problem
The existing control systems for injection molding machines require significant operator input for setting operation conditions, particularly for initial pull operations, leading to a heavy burden on the operator.
Innovation Solution
A control device and method that includes a first operation condition setup unit, a conversion table, and a second operation condition setup unit to automatically set and convert operation conditions for core setting and pull operations, reducing operator burden by generating driving commands for the injection molding machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operation conditions for core pull operation are set manually by operator, then flexibility and precision in control are improved, but operator burden and setup time increase
Solution Approach 1:
The control device automatically sets operation conditions for the core pull operation based on the core setting operation conditions that were already input by the operator. The system serves itself by generating corresponding pull operation conditions without requiring additional manual input, thereby reducing operator burden while maintaining control precision.
Solution Approach 2:
The system performs preliminary setup by storing conversion relationships between core setting operation conditions and core pull operation conditions in advance. When the operator inputs settings for core setting operations, the system has already prepared the corresponding pull operation conditions through pre-defined conversion rules, eliminating the need for separate manual configuration.
2Productivity
If operation conditions for both core setting and pull operations are set manually, then control precision is improved, but setup time and productivity decrease
Solution Approach 1:
The control device automatically generates operation conditions for core pull operations based on the core setting operation conditions already established. This self-service mechanism rapidly produces precise control parameters without requiring manual configuration, significantly reducing setup time while maintaining control precision.
Solution Approach 2:
The system creates operation conditions for pull operations by copying and transforming the core setting operation conditions. The conversion table stores predefined relationships that allow the system to generate accurate pull operation settings as a copy of the setting operation parameters, ensuring consistency and precision while accelerating the setup process.
3Extent of automation
If automatic conversion of operation conditions is implemented, then operator burden is reduced, but system complexity increases
Solution Approach 1:
The control device performs automatic conversion of operation conditions from core setting to core pull operations through self-service functionality. The system internally manages the conversion process using stored conversion relationships, achieving high automation while keeping the user interface simple and the overall system complexity manageable.
Solution Approach 2:
The conversion table acts as an intermediary between core setting operation conditions and core pull operation conditions. It stores predefined conversion relationships that mediate the automatic transformation process, enabling the system to perform complex conversions without requiring complex processing logic, thus balancing automation with system simplicity.
Data Source
AI summary
A control device for an injection molding machine has a first operation condition setup unit for setting an operation condition for a setting operation, a conversion table for storing in pairs an operation condition for the setting operation and an operation condition for a pull operation, a second operation condition setup unit for setting, by reference to the conversion table, an operation condition for the pull operation in correspondence to the operation condition for the setting operation set by the first operation condition setup unit, and a driving command generation unit for generating driving commands which drive the injection molding machine to perform the setting operation and the pull operation in accordance with the operation conditions set by the first operation condition setup unit and the second operation condition setup unit.