Dunnage System Sheet Stock Feeding with Continuous Pocket
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Solution Overview
Problem
Existing dunnage systems face inefficiencies in maintaining a continuous flow of sheet stock material, requiring frequent re-priming and time-consuming connections between fanfold stacks, which disrupts the feeding process and leads to potential jamming and irregular formations.
Innovation Solution
The implementation of pre-configured sheet stock supply units with modified beginning and finishing sections, featuring longitudinally extending middle sections and laterally folded outer sections, allows for a continuous pocket formation between stacked units, eliminating the need for re-priming by using adhesive contact and tapered leading edges to facilitate smooth feeding and reduce jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If fanfold stacks are connected using adhesive strips with peel-away liners, then the stock material supply can be extended, but the connection process is time-consuming and requires manual intervention
Solution Approach 1:
The adhesive strips are pre-applied to the stock material sheets during manufacturing, and peel-away liners are pre-positioned to protect the adhesive. This preliminary preparation eliminates the need for manual adhesive application and positioning during operation, allowing users to simply peel and attach the strips to connect fanfold stacks quickly without interrupting the feeding process
Solution Approach 2:
The peel-away liner design allows the adhesive to be self-activated by the user peeling off the protective layer, eliminating the need for external adhesive application equipment or complex connection mechanisms. The system serves itself by providing all necessary connection components integrated into the stock material structure
2Ease of manufacture
If the dunnage machine is re-primed when stock material is depleted, then a fresh supply can be started, but the process interrupts continuous operation and reduces productivity
Solution Approach 1:
The adhesive strip connection system allows fanfold stacks to be joined end-to-end to form continuous loops that can feed the dunnage machine without interruption. When one stack is depleted, the connected trailing stack automatically continues the feeding process, eliminating the need to stop and re-prime the machine and maintaining continuous productive operation
Solution Approach 2:
Multiple fanfold stacks are pre-connected in sequence using adhesive strips before being loaded into the machine. This preliminary configuration creates a continuous material supply path, so when the leading stack depletes, the trailing stack is already in position to maintain feeding continuity without requiring machine re-priming
3Adaptability or versatility
If adhesive strips are applied to the edge of stock material, then fanfold stacks can be connected, but the adhesive may lose effectiveness if not properly protected until use
Solution Approach 1:
A peel-away liner acts as an intermediary protective layer between the adhesive and the environment. This liner preserves the adhesive's effectiveness by preventing premature contact with surfaces that could contaminate or deactivate it, while allowing easy activation when needed by simply peeling the liner away to expose the functional adhesive surface
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
This solution ensures a continuous and efficient feeding process, reducing the frequency of manual priming and minimizing jamming, while maintaining a stable puffed-up dunnage product with longitudinally extending puffed-up side portions, enhancing operational efficiency and product quality.
Implementation Method 1
a beginning section 20a' of a trailing fanfold stack 20a can be connected to a finishing section 20b' of a leading fanfold stack 20b with adhesive
Data Source
AI summary
Methods and structures are provided for a dunnage system to facilitate efficient coupling together of supply units of pre-configured sheet stock material, such as, for example, separate units of fanfold stacks of pre-configured sheet stock material, in a manner of continuous supply with a continuous pocket extending longitudinally between the separate supply units, so that they can interact with an expander of the dunnage system without disruption as one supply unit is depleted and a next supply unit is fed through the dunnage system. Also, various methods, apparatus, and systems are provided to facilitate smooth operation of a dunnage machine of the dunnage system to reduce a tendency of the pre-configured sheet stock material to jam and to increase the tendency of dunnage product generated to reflect a desired shape and stability.