Capping Unit with Automatic Head Exchange for Rapid Format Change
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Solution Overview
Problem
Existing rotary filling and capping machines are expensive, delicate, and require lengthy adaptation times for different caps and containers, limiting their operational efficiency and flexibility.
Innovation Solution
A linear capping unit with a capping head store and a three-axis motor system using linear motors or brushless motors, allowing for automatic format change and synchronization of capping and filling operations, along with a rotating device for selecting screw augers based on container format, enabling rapid and efficient capping and filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rotary machines are used for high cadence filling and capping, then productivity is improved, but device complexity and cost increase, and adaptability to different caps and containers deteriorates
Solution Approach 1:
The machine is divided into multiple independent working heads (filling heads and capping heads) that operate simultaneously on a rotating table. Each head is a self-contained unit that can be independently adjusted or replaced, allowing format changes without reconfiguring the entire machine. This segmentation enables high productivity through parallel operations while maintaining adaptability through modular design.
Solution Approach 2:
The working heads are designed with universal adjustment capabilities to handle multiple cap types and container formats. The capping heads can accommodate different cap diameters and thread pitches through adjustable mechanisms, while the filling heads can adapt to various container sizes. This multi-functionality allows a single machine to perform multiple capping and filling operations without requiring complete reconfiguration.
2Productivity
If rotary machines are used for high cadence operations, then productivity is improved, but reliability deteriorates due to delicate components requiring longer maintenance and adaptation times
Solution Approach 1:
The machine includes pre-adjustment mechanisms and quick-change tooling that allow operators to prepare format changes in advance during low-production periods. Adjustment tools and replacement parts are kept readily available, and the control system stores preset parameters for different formats. This beforehand preparation cushions against potential downtime and maintains operational stability by minimizing unexpected停机和 lengthy adjustments.
3Productivity
If rotary machines are used, then high cadence is achieved, but cost increases due to expensive equipment and longer adaptation times
Solution Approach 1:
The machine incorporates dynamic adjustment mechanisms that allow real-time modification of capping and filling parameters without stopping production. The capping heads can dynamically adjust cap positioning and screwing torque, while the filling heads can modify fill volumes and speeds. This dynamic capability eliminates the need for expensive complete reconfigurations when changing formats, reducing overall equipment cost while maintaining high cadence operations.
Data Source
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AI summary
A capping unit (100) for articles such as containers and/or bottles in general, of the type comprising at least one capping group (3) bearing one or more capping heads (8) for screwing caps (6) or capsules on said articles moved by at least one transport line (4). It comprises at least one capping heads store (19), adapted to retain a series of capping heads (8), in order to allow the rapid and automatic exchange and substitution of the spindles (25) of the capping group (3); said capping group (3) being moved by an associated motorization, up to reaching said store (19) such to store and pick up, automatically from the group (3) itself the suitable capping head (8) as a function of the size of the caps (6) or capsules to be screwed.