Four-Clip Sausage Casing Closure for Leak-Resistant Sealing
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Solution Overview
Problem
Existing sausage-shaped product production methods face challenges in balancing the conflicting requirements of sealing and load-bearing capabilities of tubular packaging casings, particularly when using fragile materials, and maintaining effective closure without excessive force.
Innovation Solution
A clipping machine that applies at least four closure clips to a plait-like portion of the packaging casing, using two pairs of clips to enhance sealing and reduce leakage risk without increasing closing force, allowing for sequential or simultaneous application of clips to ensure efficient production and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high closing force is applied to the plait-like portion to improve sealing, then sealing reliability is improved, but the tubular packaging casing material is damaged and the remaining load-bearing capability is limited
Solution Approach 1:
The closure clip is divided into multiple closing elements (first closing element and second closing element) that act on different portions of the plait-like structure. This segmentation allows the closing force to be distributed across multiple contact points, improving sealing effectiveness without concentrating excessive force on a single location that could damage the packaging casing.
Solution Approach 2:
The closing elements are designed with different geometries and contact characteristics to match specific portions of the plait-like portion. The first closing element engages with a first portion while the second closing element engages with a second portion, creating locally optimized closing actions that enhance sealing without causing damage to the overall structure.
2Reliability
If a high closing force is applied to the plait-like portion to improve sealing, then sealing reliability is improved, but components of the closing device need to be adapted to withstand the high force with great effort
Solution Approach 1:
The closing device is segmented into multiple independent closing elements that can be actuated separately or simultaneously. This segmentation reduces the force requirements for each individual component compared to a single high-force closing mechanism, simplifying the overall device design while maintaining effective sealing.
Solution Approach 2:
Instead of applying a single excessive closing force, the system applies multiple partial closing forces through different closing elements. The cumulative effect of these partial actions achieves the required sealing without requiring any single component to withstand excessive forces, thereby reducing device complexity.
3Productivity
If two closure clips are applied to the plait-like portion to close front and rear ends, then basic sealing is achieved, but leakage risk remains when stored vertically
Solution Approach 1:
Each closure clip is segmented into multiple closing elements that engage with different portions of the plait-like structure. This segmentation creates multiple sealing zones within each clip, providing redundant sealing paths that prevent leakage even when the product is stored vertically under gravitational stress.
Solution Approach 2:
The closing elements are positioned to engage with specific portions of the plait-like portion that are critical for preventing leakage in vertical storage. This local optimization ensures that the sealing action is concentrated at the most vulnerable points where leakage is most likely to occur.
Data Source
AI summary
A method for reconfiguring a clipping machine for producing sausage-shaped products from a first clipping mode to a second clipping mode, the method comprising the steps of: providing an input to a control unit of the clipping machine indicative of the reconfiguration of the clipping machine from the first clipping mode to the second clipping mode; and changing a number of closure clips, supplied to a closing unit of the clipping machine from a first number of closure clips associated with the first clipping mode, to a second number of closure clips associated with the second clipping mode.