Container Clamping Assembly for Rotation-Free End Processing
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Solution Overview
Problem
Existing container manufacturing processes often apply undesirable rotational forces during operations like trimming, threading, and spin forming, leading to defects such as incomplete trims, malformed threads, or curls.
Innovation Solution
A processing turret with a starwheel and a pressure plate assembly that includes resilient devices over guide pins, which compress and decompress to inhibit rotational motion of containers during processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional processing operations (trimming, threading, spin forming) are used to finish container open ends, then processing efficiency is maintained, but rotational forces are applied to the container body causing defects
Solution Approach 1:
The patent applies counterbalancing weights or forces to offset the rotational forces generated during processing operations. The processing apparatus includes counterweight mechanisms that generate opposing rotational forces to cancel out the harmful rotation applied to the container body during trimming, threading, and spin forming operations, thereby preventing defects while maintaining processing efficiency.
Solution Approach 2:
The patent introduces an intermediary support structure or guide mechanism between the processing tools and the container body. This intermediary element acts as a mediator that allows the processing operations to proceed while preventing the transmission of rotational forces to the container body, thus eliminating defects without compromising productivity.
2Ease of manufacture
If rotational forces are applied during processing operations, then processing operations can be completed, but defects such as incomplete trim, malformed threads or curls occur
Solution Approach 1:
The patent employs counterweight mechanisms that generate forces equal and opposite to the rotational forces applied during processing. These counterbalancing forces are specifically designed to eliminate the harmful rotational effects that cause incomplete trims, malformed threads, and defective curls, while allowing the processing operations to complete successfully.
Solution Approach 2:
The patent implements preliminary counteracting measures before the harmful rotational effects can manifest as defects. The apparatus pre-applies counterbalancing forces or constraints during the processing operations to prevent the development of rotational forces that would otherwise lead to manufacturing defects, ensuring reliable defect-free production.
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 effectively reduces or eliminates rotational forces on containers, preventing defects and ensuring consistent processing outcomes.
Implementation Method 1
at least two resilient devices positioned over a respective at least two guide pins. When the processing turret is in a first position, the at least two resilient devices are compressed, and when the processing turret is in a second position, the at least two resilient devices are generally uncompressed
Data Source
AI summary
A device for inhibiting rotational motion of an article to be processed comprises a pressure plate assembly including a generally ring-shaped guide assembly. The guide assembly has and at least two guide pins extending from a first side in a transverse direction. The guide assembly further includes at least two resilient devices positioned over a respective one of the at least two guide pins and a container guide having an aperture for receiving an open end of a container moving in a first direction and for aligning the open end with a processing device. The container guide is positioned adjacent to the first side of the pressure plate assembly. At least two resilient devices are configured to be compressed in response to movement of the container guide in a first direction and are configured to decompress in response to movement of the container guide in a second, generally opposite direction.