Bag Opening Device Gripping Mechanism for Packaging Stability
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Solution Overview
Problem
Existing bag supply systems face instability in maintaining the opening shape of packaging bags, leading to issues with content insertion and retention.
Innovation Solution
A bag supply system and method that includes an opening forming device to create a stable opening shape by sliding rollers to form the opening and a bag opening device to grip and widen the edges of the opening, ensuring a secure and stable opening without relying on suction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suction is used to hold the bag opening, then the bag opening can be maintained, but the system complexity increases and reliability decreases when suction fails
Solution Approach 1:
The patent removes the suction system from the bag opening holding mechanism entirely. Instead of using suction to maintain the opening, the invention uses a mechanical gripping mechanism with claws that physically hold the bag edges, eliminating the need for suction infrastructure and improving reliability by removing a complex subsystem.
Solution Approach 2:
The patent replaces the pneumatic suction system with a mechanical gripping system. The gripping claws use mechanical force and geometric constraints to hold the bag opening, substituting the complex pneumatic control system with a simpler mechanical structure that provides more reliable and direct control over the opening stability.
2Stability of the object's composition
If the opening is formed without proper support, then the formation process is simple, but the opening shape becomes unstable and collapses
Solution Approach 1:
The patent applies preliminary action by forming the opening and immediately providing mechanical support through gripping claws before the opening can collapse. The claws engage with the bag edges right after formation, maintaining the opening shape through continuous mechanical constraint rather than allowing the opening to stabilize on its own.
Solution Approach 2:
The gripping claws serve as an intermediary mechanism between the opening formation process and the final stable opening state. The claws physically mediate the transition from an unstable formed opening to a stable supported opening, providing the necessary mechanical intervention to prevent collapse.
Data Source
AI summary
A bag supply system supplies a packaging bag to a storing position where a sandwich is stored, the bag supply system which includes an opening forming device configured to form an opening at a bag opening of the packaging bag, and a bag opening device configured to grip each of a first side edge portion and a second side edge portion of the opening in an opening direction, the opening direction being a direction in which the opening is opened, and open the bag opening by widening the opening in the opening direction.