Packaging Sealing Jaws With Asymmetrical Force Control
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Solution Overview
Problem
Existing packaging material sealing devices require manual mechanical adjustments to change seal force distribution, which is inefficient and inadequate for sealing materials with varying layer thicknesses, leading to inconsistent sealing quality.
Innovation Solution
A packaging material sealing device with a control unit that controls two actuators to set asymmetrical sealing forces for sealing jaws, allowing for automatic adjustment based on material thickness variations, eliminating the need for manual mechanical adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual mechanical adjustment is used to change seal force distribution, then the device complexity is reduced, but the productivity and sealing quality deteriorate due to inefficiency and inability to handle varying layer thicknesses
Solution Approach 1:
The patent replaces manual mechanical adjustment with an automated control unit that electronically controls actuators to adjust sealing force. This substitution eliminates manual intervention while providing precise, programmable control over sealing parameters, thereby improving productivity without requiring complex mechanical adjustment mechanisms.
Solution Approach 2:
The patent implements dynamic sealing force adjustment through actuators that can be controlled in real-time based on material thickness variations. The control unit enables the sealing jaws to adapt their sealing force dynamically during operation, allowing the system to handle different packaging materials efficiently without manual reconfiguration.
2Manufacturing precision
If symmetrical sealing force is applied to both sealing jaws, then the device structure is simplified, but the manufacturing precision and sealing quality deteriorate when sealing materials with varying layer thicknesses
Solution Approach 1:
The patent applies different sealing forces to different sealing jaws based on the local requirements of the packaging material. The control unit enables independent adjustment of each sealing jaw's force, allowing optimized sealing for materials with varying layer thicknesses in different regions, thereby improving sealing quality without requiring a completely complex redesign of the sealing mechanism.
Solution Approach 2:
The patent changes the sealing force parameter independently for each sealing jaw through electronic control. The control unit allows programmable adjustment of sealing force parameters, enabling the system to adapt to different material thicknesses and achieve consistent sealing quality across varying conditions without manual mechanical reconfiguration.
3Manufacturing precision
If mechanical imperfections are present in the sealing device, then the ease of manufacture is improved, but the manufacturing precision and sealing homogeneity deteriorate
Solution Approach 1:
The patent incorporates feedback control through the control unit that monitors and adjusts sealing force in real-time. This feedback mechanism compensates for mechanical imperfections and variations in material thickness, ensuring homogeneous sealing quality. The electronic control system can detect and correct deviations, maintaining precision despite manufacturing tolerances and assembly variations.
Data Source
AI summary
A packaging material sealing device includes a first sealing jaw and at least a second sealing jaw and at least one movement unit, which includes a first actuator and at least a second actuator for actuating the two sealing jaws along a sealing direction, and at least one control unit. In at least one operating state, the control unit controls the two actuators for setting an asymmetrical sealing force for the two sealing jaws.