Welding Head Compensating Device for Lid Alignment
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Solution Overview
Problem
Existing welding technologies for sealing containers with pourable food products require multiple steps for opening, and the variability in container and lid dimensions and shapes complicates the welding process, leading to potential misalignment and reduced efficiency at high production rates.
Innovation Solution
A welding head with a compensating device that centers the welding element relative to the lid, ensuring accurate alignment and efficient welding, even with varying container and lid dimensions and shapes, and capable of operating at high production rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed welding head is used for welding lids to containers, then the welding process is simple, but misalignment occurs due to variability in container and lid dimensions and shapes, reducing welding quality
Solution Approach 1:
The welding head incorporates a compensating device with movable components that can dynamically adjust the position of the welding element. The device includes a first component fixed to the support and a second component that can move relative to the first component along a guide, allowing the welding head to adapt its position to compensate for misalignment between the lid and the welding element, thereby maintaining welding precision without requiring a completely complex reconfiguration system
Solution Approach 2:
The compensating device changes the positional parameters of the welding element relative to the lid. By allowing the second component to move along the guide in response to misalignment conditions, the system adjusts the welding element's position to maintain proper alignment with the lid, effectively changing the spatial parameters to compensate for dimensional variations in containers and lids
2Reliability
If multiple opening steps are required for containers, then sealing reliability is improved, but operational efficiency decreases and opening time increases
Solution Approach 1:
The patent merges the lid and closing element into a single integrated opening operation. The closing element is formed in one piece with a protruding portion that extends inside the pouring spout and is welded to the lid, allowing both components to be removed from the pouring spout in a single user action. This combining of functions enables one-step opening while maintaining the reliable sealing provided by the closing element
3Productivity
If high production rates are maintained, then productivity is improved, but welding quality may deteriorate due to reduced adjustment time for alignment
Solution Approach 1:
The compensating device is designed to automatically compensate for misalignment without requiring manual adjustment or complex control systems. The movable second component responds to misalignment conditions and self-adjusts the welding element position along the guide, enabling the system to maintain both high production rates and welding quality through autonomous alignment compensation
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
Ensures reliable and high-quality welding of lids to containers, reducing the number of steps required for opening and maintaining performance despite variations in container and lid dimensions, thereby improving operational efficiency.
Implementation Method 1
the welding element comprises an electric induction generating element for generating an electric current capable of heat-sealing the lid to the opening device
Data Source
AI summary
A welding head comprises a welding element (51) for welding a lid (1) to an opening device of a container (10). The welding head (43) further comprises a 5 compensating device (62) operable for compensating a misalignment between the welding element (51) and the lid (1), thereby centering the welding element (51) relative to the lid (1).