Glass Bottle Forming Machine Arm Assembly Single Pivot Design
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Solution Overview
Problem
Glass bottle manufacturing machines experience arm warping due to extreme temperatures and stress, leading to production delays and costs associated with frequent machine shutdowns for maintenance.
Innovation Solution
The arm assembly pivots on a single central point instead of two, ensuring consistent pressure and reducing the likelihood of warping, allowing for quicker replacement and reduced downtime by aligning and removing the entire mold arm as a unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the arm assembly uses two pivot points, then the structure provides stability, but the arm is prone to warping under extreme temperature and stress
Solution Approach 1:
The arm assembly is divided into multiple arcuate members that can be independently replaced. This segmentation allows individual worn or warped members to be replaced without affecting the entire arm assembly, maintaining reliability while preserving structural stability through modular design.
Solution Approach 2:
The arm assembly transitions from a rigid two-pivot structure to a dynamic multi-member configuration that can adapt to thermal expansion and stress. The arcuate members can flex and adjust under extreme temperature conditions, preventing warping while maintaining structural integrity.
2Productivity
If the machine operates continuously under extreme temperatures, then productivity is maintained, but the arm assembly warps requiring shutdowns
Solution Approach 1:
The arm assembly is designed with pre-compression elements and expansion joints that anticipate thermal expansion under extreme temperatures. This beforehand cushioning prevents warping by accommodating dimensional changes before they occur, allowing continuous operation without shutdowns for maintenance.
Solution Approach 2:
The arm assembly uses materials and design parameters that change with temperature to maintain integrity. The arcuate members are designed with thermal expansion coefficients matched to the operating conditions, and the structure transitions smoothly through temperature ranges without warping, enabling continuous productivity.
3Ease of repair
If the arm assembly is designed for easy replacement, then maintenance downtime is reduced, but the structural consistency during bottle forming may be compromised
Solution Approach 1:
The arm assembly is segmented into standardized arcuate members that can be quickly replaced. Each segment is designed with consistent geometry and precision features that ensure uniform bottle forming, while the modular nature allows rapid replacement without compromising overall structural consistency.
Solution Approach 2:
The arcuate members are designed as universal components that can be used in multiple positions and configurations. This universality ensures that any replaced member maintains the same precision characteristics, guaranteeing consistent bottle forming while enabling easy replacement with standardized parts.
Data Source
AI summary
During the glass bottle forming process a pair of arms is used to form the bottle one after another is rapid succession; a bottle is formed in a glass machine in approximately three to four seconds. The machine is exposed to extremes in temperature as well as extremes in pressure. One of the chief issues with the operation of this machine are the interruption of use of the machine if the machine should fail or begin to produce defective bottles. Any shutdown of the machine leads to disruption in production and is unwelcome.


