Rotary Multi-Surface Mold for Compact Parallel Injection Molding
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Solution Overview
Problem
Conventional injection molding machines require large mechanisms for moving second injection units, leading to increased apparatus size and difficulty in adjusting the position of these units relative to the mold, which complicates the assembly process.
Innovation Solution
A mold design featuring a rotatable portion with multiple forming surfaces, a frame portion, and a movement mechanism that allows for sequential positioning of forming portions to perform multiple assembly and molding steps in parallel, reducing the need for large mechanisms and enabling precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a second injection unit is attached to the injection molding machine to form multiple molded products, then productivity is improved, but the apparatus size increases due to large mechanisms required for moving the second injection unit
Solution Approach 1:
The mold is divided into a first mold part with a first forming portion and a second mold part with a second forming portion. Each forming portion can independently form different molded products. This segmentation allows multiple products to be formed simultaneously without requiring a large second injection unit, thus improving productivity while keeping the apparatus size compact.
Solution Approach 2:
The invention utilizes the spatial arrangement of forming portions in different directions. The first and second forming portions are arranged in different directions relative to the mold opening direction, allowing multiple products to be formed in parallel without increasing the apparatus volume significantly. This dimensional arrangement enables efficient space utilization.
2Productivity
If a second injection unit is attached to the injection molding machine, then multiple molded products can be formed, but it becomes difficult to adjust the position of the second injection unit with respect to the mold
Solution Approach 1:
The first and second forming portions are integrated into a single mold structure that is mounted on one injection molding machine. This merging eliminates the need for separate injection units and their associated positioning mechanisms. The mold can be adjusted as a single unit, making position adjustment straightforward while enabling the formation of multiple molded products simultaneously.
3Productivity
If multiple forming portions are arranged in different directions in the mold, then multiple molded products can be formed simultaneously, but the mold structure becomes more complex
Solution Approach 1:
The mold structure is designed with multiple forming portions that can form different molded products using the same basic mold mechanism. This multi-functionality allows the mold to produce various products without requiring complex specialized mechanisms for each product, thereby maintaining structural simplicity while achieving high productivity.
Data Source
AI summary
A mold includes a rotatable portion, a frame portion, a first and second portion, and a production unit. The rotatable portion has a plurality of surfaces and a plurality of forming portions. The plurality of surfaces is each provided with one of the plurality of forming portions, each having the same shape. The frame portion rotatably supports the rotatable portion. The first portion defines a cavity by coming into contact with one surface of the plurality of surfaces by clamping the mold. The second portion comes into contact with another surface of the plurality of surfaces different from the one surface by clamping the mold. The production unit attached to the frame portion.