Toroid Chuck Reformer Assembly With Cam-Driven Roller Die
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Solution Overview
Problem
The existing base reformer assemblies in necker machines have limited space, leading to smaller and less robust forming and drive elements, which are prone to wear and require frequent maintenance, and lack friction-reducing sealed elements and effective can body ejection systems.
Innovation Solution
A base reformer assembly with a toroid chuck, roller die, and a cam actuated roller die unit actuating assembly that is gear-free and includes sealed friction-reducing elements, along with a can body ejection system using pressurized fluid, to enhance durability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base reformer assembly uses traditional gear-driven mechanisms, then the drive system can provide sufficient torque, but the assembly becomes complex and requires frequent maintenance due to wear
Solution Approach 1:
The patent replaces the traditional gear-driven mechanical system with a cam actuated mechanism. The cam profile is designed to directly convert rotational motion into the required linear and oscillating motions of the roller die, eliminating gears, shafts, and associated lubrication requirements. This substitution reduces the number of moving parts subject to wear while maintaining the necessary torque and motion control for base reforming operations
Solution Approach 2:
The invention extracts and removes the gear train from the drive system, keeping only the essential cam actuated components. By taking out the complex gear mechanism and replacing it with a simpler cam-based system, the patent achieves reduced maintenance requirements while preserving the functional capabilities needed for robust base reformer operation
2Reliability
If the base reformer assembly uses traditional open friction-reducing elements, then the mechanism can operate with reduced friction, but the elements are exposed to contamination and wear
Solution Approach 1:
The patent employs sealed friction-reducing elements enclosed within protective housings or shells. These sealed elements (such as sealed bearings or lubricated cam surfaces) prevent contamination from industrial environments while maintaining low friction operation. The sealing structure protects the friction-reducing interface from dust, debris, and other contaminants that would otherwise accelerate wear and increase friction
Solution Approach 2:
The invention incorporates sealed friction-reducing elements that are protected in advance from contamination. By sealing the friction interfaces before operation begins, the system prevents harmful factors (contamination) from reaching the friction surfaces, thereby maintaining low friction conditions and extending element life without requiring frequent maintenance
3Area of stationary object
If the base reformer assembly operates in limited space, then the machine footprint is reduced, but the forming and drive elements become smaller and less robust
Solution Approach 1:
The patent utilizes three-dimensional space more effectively by arranging components vertically and radially within the limited footprint. The cam actuated mechanism allows the roller die to engage and reform the can body base in a compact radial and axial motion pattern, maximizing the use of available space while maintaining full-size robust forming elements. The compact cam mechanism provides sufficient torque and control without requiring large horizontal space
Solution Approach 2:
The invention nests components within each other to maximize space utilization. The roller die, cam mechanism, and support structures are arranged in a nested configuration where smaller components fit within or alongside larger ones. This nesting allows robust forming elements to be accommodated within the limited space between the front of the machine and the plane in which can bodies move, maintaining element strength while minimizing the overall machine footprint
4Ease of operation
If the base reformer assembly lacks an effective ejection system, then the structure remains simple, but can bodies cannot be reliably ejected after forming
Solution Approach 1:
The patent incorporates a pressurized fluid ejection system that uses pneumatic or hydraulic pressure to reliably eject formed can bodies from the base reformer assembly. Pressurized air or fluid is directed at the can body base to push it off the roller die and chuck onto the transfer assembly. This ejection mechanism adds minimal complexity while providing dependable ejection capability, avoiding the need for complex mechanical ejection arms or sophisticated timing mechanisms
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
The solution provides robust, low-maintenance base reformer assemblies with reduced wear and improved friction management, enabling efficient can body processing and ejection, addressing the limitations of previous designs.
Implementation Method 1
a can body ejection system using pressurized fluid
Data Source
AI summary
A base reformer assembly, and/or a base reformer roller die unit, includes a generally toroid chuck, a roller die, and a roller die unit actuating assembly. The roller die is movably disposed within the chuck. The roller die unit actuating assembly is structured to actuate the roller die. The roller die unit actuating assembly is operatively coupled to the roller die. Further, all elements of the roller die unit actuating assembly have a robust cross-sectional area.