Sequential Gate Valve Pin Control for Injection Molding Setup
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Solution Overview
Problem
Injection molding systems face challenges in efficiently setting up and adjusting the timing and movement of valve pins for sequential gate opening, requiring skilled operators and significant time due to variations in melt temperature, shot size, channel length, cavity size, and other flow parameters, leading to potential air bubbles and surface defects in molded parts.
Innovation Solution
A graphical user interface and control system that allows users to select and arrange virtual icons to define triggering events and actuator-controlled pin movements, enabling simulation and comparison of pin profiles to quickly adjust settings, reducing the need for trial and error and minimizing operator expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional manual setup and adjustment methods are used for valve pin sequencing, then the system can be operated with basic equipment, but the setup time and operator expertise requirements increase significantly
Solution Approach 1:
The patent uses graphical user interface icons that represent and copy the actual valve pin movement sequences. Operators can visually copy desired pin profiles by selecting and arranging icons, eliminating the need for manual trial-and-error adjustment and significantly reducing setup time while maintaining ease of operation.
Solution Approach 2:
The patent replaces manual mechanical adjustment procedures with an automated computer-controlled system. The controller automatically executes valve pin sequencing based on graphical icon selections, substituting manual mechanical setup with automated electronic control, thereby reducing both setup time and operator expertise requirements.
2Manufacturing precision
If multiple trial and error runs are performed to adjust pin profiles, then the system can achieve desired molding quality, but the number of runs and time required increases
Solution Approach 1:
The patent allows operators to pre-configure valve pin sequences using graphical icons before actual production. The desired pin profiles are established in advance through visual icon arrangement, eliminating the need for multiple trial runs during production setup and immediately achieving the desired molded part quality.
Solution Approach 2:
The system provides visual feedback through graphical displays showing the configured pin sequences and their expected outcomes. This feedback mechanism allows operators to verify and adjust configurations before production, ensuring manufacturing precision without requiring multiple trial runs that would reduce productivity.
3Manufacturing precision
If comprehensive parameter adjustments are made to achieve desired pin profiles, then the accuracy of melt flow control improves, but the complexity of parameter setting increases
Solution Approach 1:
The patent introduces graphical user interface icons as intermediaries between the operator and the complex valve pin control parameters. These icons serve as mediators that simplify the interface, allowing operators to control melt flow accuracy through intuitive visual selections rather than directly managing complex parameter settings.
Solution Approach 2:
The graphical icon system provides universal control for multiple valve pin parameters through a single unified interface. Each icon represents a comprehensive set of parameters and actions, allowing operators to control complex melt flow characteristics through simple icon selection and arrangement, thereby maintaining precision while reducing apparent complexity.
4Object-affected harmful factors
If sequential timing between upstream and downstream gates is precisely controlled, then air bubbles and surface defects are eliminated, but the control system complexity increases
Solution Approach 1:
The patent uses graphical icons to represent and copy the precise sequential timing sequences between upstream and downstream gates. By visually copying and arranging icons in the desired sequence, the system eliminates air bubbles and surface defects through accurate timing control without requiring complex manual programming or adjustment procedures.
Data Source
AI summary
An apparatus and method for establishing triggers for the opening of one or multiple gates to a mold cavity of an injection molding system, followed by a sequence of predetermined valve pin movements over the course on an injection cycle. In one embodiment, the invention provides a graphical user interface and control system enabling a user to select from and arrange a plurality of virtual icons into a user-defined virtual sequence that define associated triggering events and actuator controlled pin movements over the course of an injection cycle. In various embodiments, the apparatus and method allows the system operator to view a simulated profile of such triggers and movements and to compare the simulated profile to an actual profile to access differences and make adjustments to the triggers and sequencing more quickly and efficiently. This is particularly useful in sequential molding systems where multiple gates need to be programmed and adjusted to compensate for variations from a predetermined sequence.