Rotatable Injection Mold Central Part for Multi-Component Production
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Solution Overview
Problem
Current injection molding technologies face challenges in efficiently producing complex parts, especially those with undercuts, as they often struggle to manage multi-component and multi-layered products with varying materials and colors effectively.
Innovation Solution
The proposed injection molding device features a central part with rotatable upper and lower parts, supported by a base, and includes inner mold plates with clamping means and slider systems that allow for the efficient production of complex parts by rotating and displacing mold plates to form and transfer components between different cavity segments, enabling the creation of multi-layered products with undercuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotatable mold central part is used to produce multi-component parts, then productivity is improved, but the device complexity increases due to the need for holding devices and coordination mechanisms
Solution Approach 1:
The mold system is segmented into multiple independent rotatable central parts, each capable of being held and positioned separately. This allows complex multi-component parts to be produced by dividing the molding process across multiple rotatable units, improving productivity while managing complexity through modular segmentation
Solution Approach 2:
The holding device is designed with universal functionality to accommodate and hold multiple different rotatable central parts with varying numbers of side surfaces. The coordination means are configured to work with any rotatable central part, providing multi-functional capability that improves productivity across different part configurations without proportionally increasing complexity
2Adaptability or versatility
If multiple rotatable central parts are used to manufacture parts in different parting planes, then adaptability is improved, but the device complexity increases due to multiple holding devices
Solution Approach 1:
The system employs dynamic rotatable central parts that can rotate to different positions to access different parting planes. The holding devices are designed to accommodate this rotational movement, providing adaptability to manufacture parts in multiple planes while managing complexity through controlled dynamic motion rather than static multiple systems
Solution Approach 2:
Transfer systems act as intermediaries between rotatable central parts operating in different parting planes. These transfer mechanisms enable parts to be moved between planes without requiring completely separate holding devices for each plane, improving adaptability while reducing overall system complexity through the use of intermediary transfer components
Data Source
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AI summary
The invention is directed to an injection molding device ( 1 ) for the production of a multi component injection molded product (2 ). The injection molding device ( 1 ) comprises at least one first and at least one second outer mold plate (3, 4), which are arranged in a movable manner relative to each other in a first direction (x) between an open position and a closed position of the injection molding device ( 1 ). A central part ( 5) is arranged between the first and the second outer mold plate (3,4), said central part ( 5 ) comprises a first part (7) which in the open position is arranged rotatable about an axis of rotation (6) and to which first inner mold plates (8) are attached which comprise first cavity segments (9). A second part ( 1 0) arranged non-rotatable comprises on one side in the direction of the first outer mold plate (3 ) second cavity segments ( 14) and on an opposite side in the direction of the second outer mold plate (4) third cavity segments ( 15 ). Second inner mold plates ( 11 ), comprise clamping means ( 18) for clamping of thereto related intermediate products, wherein the second inner mold plates (8, 11 ) are in the open position arranged displaceable in a radial direction with respect to the axis of rotation ( 6) and rotatable about the axis or rotation (6) around the second part ( 10) to transport the intermediate products from the second cavity segments ( 14) to the third cavity segments ( 15) around the second part ( 10) of the central part ( 5).