Mold Cooling Channel Baffle Screw for Uniform Injection Mold Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plastic injection molding processes face challenges with uneven cooling efficiency and prolonged cooling times, leading to product deformation, surface defects, and decreased productivity, particularly in large high-precision parts like hydrogen tank liners.
Innovation Solution
A water-cooling system with a baffle module and baffle screw inside the cooling channel that promotes smooth circulation of cooling water, using a baffle screw with thread peaks and valleys to guide water flow uniformly and efficiently through the mold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a relative long path is used for cooling water to reach locations close to the product, then the cooling water can reach all areas of the mold, but the cooling efficiency decreases and flow resistance increases
Solution Approach 1:
The cooling channel is divided into multiple segments with strategic turnings. The channel includes a first section extending from the inlet, a second section turning at a first angle, a third section extending again, and a fourth section turning at a second angle to reach the product area. This segmentation allows the cooling water to reach close locations efficiently while maintaining uniform temperature distribution throughout the mold.
2Device complexity
If the cooling water temperature is unevenly distributed inside the mold, then the cooling process can be simplified, but the product becomes deformed and surface defects occur
Solution Approach 1:
The cooling channel is designed with varying cross-sectional areas and turning angles at different locations within the mold. The channel includes a first section, a second section turning at a first angle, a third section, and a fourth section turning at a second angle. This local variation in channel geometry ensures uniform cooling water temperature distribution across different regions of the mold, preventing product deformation and surface defects while maintaining reasonable system complexity.
3Manufacturing precision
If the cooling time is prolonged to ensure uniform cooling, then the cooling uniformity improves, but the production time increases and productivity decreases
Solution Approach 1:
The cooling channel incorporates dynamic turning sections that redirect cooling water flow based on the mold's thermal requirements. The channel includes a first section, a second section turning at a first angle, a third section, and a fourth section turning at a second angle. This dynamic path design allows cooling water to reach all critical areas efficiently, achieving uniform cooling in shorter time and improving production productivity.
4Productivity
If the cooling channel is designed with straight flow path, then the flow resistance is reduced, but the cooling water cannot reach close locations efficiently
Solution Approach 1:
The cooling channel transitions from a simple straight path to a multi-dimensional path with turning sections. The channel includes a first section, a second section turning at a first angle, a third section, and a fourth section turning at a second angle. This dimensional change allows the cooling water to reach close locations to the product efficiently while maintaining manageable flow resistance, achieving high cooling efficiency without excessive geometric complexity.
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
Enhances cooling efficiency, reduces product deformation, improves surface quality, and increases productivity by ensuring uniform temperature distribution and shorter production cycles.
Implementation Method 1
a baffle screw that has a cylindrical shape and is accommodated inside the cooling channel along the straight flow path of the cooling channel, the baffle screw including a plurality of thread peak portions that protrude in an oblique direction from an outer periphery of the baffle screw, where the baffle screw is configured to rotate inside the cooling channel to thereby move the cooling water along a predetermined path
Implementation Method 2
In the cooling operation, the injected resin is cooled and solidified
Implementation Method 3
a water-cooling system for an injection-molding apparatus that circulates cooling water to cool a molding mold
Data Source
AI summary
A water-cooling system for an injection-molding apparatus is configured to cool a molding mold by circulating cooling water. The water-cooling system includes a cooling channel, a coolant supply pipe, a coolant recovery pipe, and a baffle module. The cooling channel defines a straight flow path inside the molding mold and has a first end that is a channel inlet opened toward an exterior of the molding mold and a second end that defines a transition section and is a closed end of the straight flow path, where the straight flow path extends through at least a part of an interior of the molding mold toward an injection-molded product. The coolant supply pipe supplies the cooling water to the cooling channel. The coolant recovery pipe recovers the cooling water from the cooling channel.