Vertical I.S. Machine Parison Transfer
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Solution Overview
Problem
Existing Individual Section (I.S.) machines for manufacturing glass containers require the inversion of parisons from blank molds to blow molds, leading to parison deformities and increased machine footprint, resulting in defective products and inefficient production.
Innovation Solution
A vertical I.S. machine design where parisons are lowered directly from blank molds into blow molds located underneath, eliminating the need for inversion and potentially incorporating reheat shrouds for parison reheating, thereby reducing the machine's footprint and improving production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If parisons are transferred horizontally from blank molds to blow molds through a 180 degree arc, then the machine can maintain a compact horizontal layout, but the parisons experience stress and deformation resulting in defective glass containers
Solution Approach 1:
The patent inverts the traditional horizontal transfer mechanism by implementing a vertical transfer system where parisons move downward from blank molds to blow molds located below, eliminating the 180 degree arc swing and associated deformation
Solution Approach 2:
The patent transitions from horizontal plane operation to vertical plane operation, repositioning blow molds beneath blank molds to create a downward transfer path that eliminates parison deformation while maintaining compact footprint
2Productivity
If the neckring arm transfers parisons rapidly from blank molds to blow molds, then production speed increases, but the outer parison travels the furthest with greatest acceleration causing bending and wholesale rejections
Solution Approach 1:
The patent inverts the transfer direction from horizontal swinging to vertical lowering, eliminating acceleration-induced bending while maintaining high production speed through the downward transfer motion
3Area of stationary object
If the machine maintains the traditional horizontal arrangement of blank molds and blow molds, then the operator can access sections for repairs without shutting down other sections, but the machine occupies a larger footprint area
Solution Approach 1:
The patent moves the system from horizontal expansion to vertical stacking, positioning blow molds beneath blank molds to reduce footprint while maintaining section independence through the vertical configuration
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
This design reduces parison deformation and machine footprint, enhancing production efficiency by eliminating the need for parison inversion and allowing for a more compact layout without significant disadvantages.
Implementation Method 1
A stream of molten glass is provided by a furnace from which the stream of molten glass flows. The molten glass stream is cut with a shearing mechanism into uniform segments of glass called 'gobs,' which fall by gravity
Implementation Method 2
The hot parison is then inverted and transferred to a blow mold, where the parison is blown out into the shape of the container
Implementation Method 3
the parison is blown out into the shape of the container in the blow mold
Data Source
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AI summary
A vertical individual section (I.S.) machine for manufacturing glass containers (140) is disclosed in which parisons (120) made in blank molds (86, 88) are lowered into blow molds (100, 102) located under the blank molds without being inverted, where they are blown into glass containers (140). Optionally, reheat shrouds (98) may be located vertically intermediate the blank molds (86, 88) and the blow molds (100, 102) to reheat the parisons (120) prior to them being blown. The vertical I.S. machine may have multiple sections (40, 42, 44) that are located close adjacent each other, with each section potentially having multiple blank and blow molds.