Integrated Blow Mold Unit for Efficient Container Replacement
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Solution Overview
Problem
In blow molding machines, the process of replacing molds integrated with both blow cavities and raised bottom molds is inefficient due to the need to fix multiple raised bottom molds to an elevating device on the main body side, which is cumbersome and space-constrained.
Innovation Solution
A blow mold unit design where the pair of blow cavities and raised bottom molds are handled as an integral body, eliminating the need to fix raised bottom molds to an elevating device by using a system with first and second fixing plates, a third fixing plate, and elevating rods, allowing for lateral movement and release of raised bottom molds during mold replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple raised bottom molds are fixed to an elevating device on the main body side, then the blow molding process can produce containers with raised bottom shapes, but the mold replacement operation becomes troublesome and inefficient due to narrow operation space and complex fixing procedures
Solution Approach 1:
The patent combines the blow cavity split molds and raised bottom molds into a single integrated blow mold unit. The raised bottom molds are mounted on a separate mounting plate that can be attached to the blow cavity split molds, creating a unified structure that is replaced as one unit rather than separate components. This merging eliminates the need for complex fixing operations during mold replacement while maintaining the capability to produce raised bottom container shapes.
Solution Approach 2:
The blow mold unit is segmented into distinct functional components: the blow cavity split molds mounted on a mounting plate, and the raised bottom molds mounted on a separate mounting plate. These segmented components can be independently designed and assembled, then combined into an integrated unit that simplifies replacement operations compared to fixing multiple separate raised bottom molds to the main body elevating device.
2Adaptability or versatility
If multiple raised bottom molds are fixed to an elevating device on the main body side, then the blow molding process can produce containers with raised bottom shapes, but the operation space becomes constrained and the fixing procedure becomes complex
Solution Approach 1:
The patent merges the raised bottom molds with the blow cavity split molds into a single blow mold unit through a mounting plate system. This combination reduces device complexity by eliminating the need for separate elevating device fixings for multiple raised bottom molds, thereby simplifying the overall structure and reducing operation space requirements while maintaining the functionality to produce raised bottom container shapes.
3Ease of manufacture
If molds are replaced as separate components (blow cavity split molds and raised bottom molds individually), then each component can be optimized independently, but the overall mold replacement time and operational efficiency are reduced
Solution Approach 1:
The patent combines blow cavity split molds and raised bottom molds into an integrated blow mold unit that is replaced as a single assembly. This merging maintains the ability to independently design and manufacture each component (as they are separately mounted on their respective plates before assembly), while dramatically improving mold replacement efficiency by eliminating the need for separate replacement operations for each mold component.
Data Source
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AI summary
The invention provides a blow mold unit and a blow molding machine in which molds can be replaced in a unit of a blow mold unit including a pair of blow cavities and a raised bottom mold and in which it is not necessary to fix the plurality of raised bottom molds to an elevating device disposed on the main body side of the blow molding machine. The blow mold unit includes a blow mold including first and second blow cavity split molds and a plurality of raised bottom molds, first and second pressure receiving plates that receive mold clamping pressure, a first fixing plate to which the first blow cavity split mold and the first pressure receiving plate are fixed, a second fixing plate to which the second blow cavity split mold and the second pressure receiving plate are fixed, a third fixing plate interposed between the first and second fixing plates and to which the plurality of raised bottom molds are fixed at a first surface thereof, at least one shaft portion extending vertically from a second surface of the third fixing plate opposed to the first surface, an elevation guide block fixed to one of the first and second fixing plates and elevation guiding the shaft portion, and an elevating rod extending vertically from the second surface of the third fixing plate.