Quick-Change Vacuum Starwheel Assembly for Fast Can Size Changeovers
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Solution Overview
Problem
Necking machines require frequent adjustments and replacements of starwheels and guiderails to accommodate different can body sizes, involving numerous couplings and fasteners that are time-consuming and prone to loss.
Innovation Solution
A quick-change vacuum starwheel assembly with a limited number of retained couplings for height adjustment and mounting, allowing for axial movement and easy replacement of starwheel components without losing secured fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If numerous couplings and fasteners are used to secure starwheels and guiderails, then the components can be firmly attached to the machine, but the adjustment and replacement process becomes time-consuming and fasteners are prone to loss
Solution Approach 1:
The starwheel assembly is divided into separable components (starwheel body, pockets, and couplings) that can be independently adjusted and replaced. This segmentation allows quick removal and reconfiguration without dismantling the entire assembly, directly reducing adjustment time while maintaining secure attachment through dedicated coupling mechanisms.
Solution Approach 2:
The coupling mechanism incorporates movable elements that transition between locked and unlocked states, enabling dynamic adjustment. The couplings can be quickly engaged or disengaged to facilitate rapid starwheel replacement while ensuring firm attachment during operation, resolving the contradiction between secure attachment and quick adjustment.
2Reliability
If numerous couplings and fasteners are used to secure starwheels and guiderails, then the components can be firmly attached to the machine, but fasteners are prone to loss during adjustment
Solution Approach 1:
The coupling mechanism integrates the fastening function directly into the starwheel assembly structure, merging the starwheel body with its mounting couplings. This integration eliminates separate fasteners that could be lost, while the coupling design ensures firm attachment through interlocking features that remain attached to the starwheel during adjustment operations.
Solution Approach 2:
The coupling acts as an intermediary element between the starwheel and the machine frame, providing a secure interface that remains attached to the starwheel. This intermediary design prevents fastener loss by ensuring that all attachment elements move with the starwheel assembly, eliminating the risk of separate fasteners being misplaced during adjustment.
3Adaptability or versatility
If the starwheel position is adjusted to accommodate different can body heights, then the machine can process various can sizes, but numerous couplings must be removed and reinstalled
Solution Approach 1:
The coupling mechanism incorporates movable elements that transition between locked and unlocked states, enabling dynamic adjustment. The couplings can be quickly engaged or disengaged to facilitate rapid starwheel replacement while ensuring firm attachment during operation, resolving the contradiction between secure attachment and quick adjustment.
4Adaptability or versatility
If the entire starwheel is replaced to accommodate different can body radii, then the correct pocket radius is available, but numerous couplings and fasteners must be removed and reinstalled
Solution Approach 1:
The starwheel assembly is divided into separable components (starwheel body, pockets, and couplings) that can be independently adjusted and replaced. This segmentation allows quick removal and reconfiguration without dismantling the entire assembly, directly reducing adjustment time while maintaining secure attachment through dedicated coupling mechanisms.
Solution Approach 2:
The coupling mechanism is designed with universal features that can accommodate different starwheel configurations and sizes. The standardized coupling interface allows the same coupling type to be used across multiple starwheel variations, enabling quick replacement for different can radii without requiring different coupling hardware, thus reducing both time and complexity.
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
Facilitates rapid and secure adjustments and replacements in necking machines, reducing downtime and minimizing the risk of lost fasteners, while maintaining precise alignment and operation.
Implementation Method 1
Each pocket is in fluid communication with a vacuum assembly that reduces the air pressure in/at the pocket. In this configuration, a can body is disposed in a pocket and held in the pocket by the suction generated by the vacuum assembly.
Data Source
AI summary
A quick-change vacuum starwheel assembly including at least one of a quick-change height adjustment assembly or a quick-change vacuum starwheel mounting assembly.