Strapping Device Holder Pivoting for Roll Change
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Solution Overview
Problem
Existing strapping devices complicate the process of changing strap rolls due to the vertical orientation of the roll, making it cumbersome to handle, position, and secure the new roll, especially due to the weight and visibility issues of the roll bore.
Innovation Solution
The holder can be pivoted laterally out of the frame to change its position from horizontal to vertical or angled, allowing the strap roll to be tilted for easier handling and positioning, with optional actuating mechanisms like gas springs or motorized systems for assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the strap roll is held in a vertical position during operation, then the strap can be continuously withdrawn, but the roll change becomes cumbersome due to handling difficulties and poor visibility of the roll bore
Solution Approach 1:
The holder is made pivotable between a working position (where the bearing journal is horizontal for continuous strap withdrawal) and a non-working position (where the bearing journal is tilted or vertical for easy roll changes). This dynamic repositioning allows the system to optimize for either continuous operation or maintenance based on the current task requirement.
Solution Approach 2:
The solution introduces a spatial dimension by allowing the holder to pivot out of the frame laterally. This movement from a fixed horizontal position to a tilted/vertical position creates additional operational space, making the roll bore visible and accessible from the side, thereby facilitating easier roll changes.
2Stability of the object's composition
If the bearing journal remains in a horizontal position, then the strap roll is stable during operation, but the roll bore is not visible and positioning is difficult
Solution Approach 1:
The holder's pivotability allows dynamic switching between a stable horizontal position (good for operation) and a tilted/vertical position (good for visibility and positioning). The system adapts its orientation based on whether stability or accessibility is the current priority.
Solution Approach 2:
Instead of trying to make the horizontal position more visible or accessible, the solution inverts the approach by moving the entire holder to a different orientation where the roll bore becomes naturally visible from the side, eliminating the visibility problem without compromising operational stability when needed.
3Ease of operation
If the strap roll is positioned vertically for changing, then the roll can be accessed, but considerable effort is required due to the weight of the roll
Solution Approach 1:
The pivotable holder allows the bearing journal to be positioned at an optimized angle during roll changes. By tilting the journal rather than holding it strictly vertical, the weight of the roll naturally assists the pushing motion, reducing the force required by the operator while still providing good access and visibility.
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 design simplifies the roll change process by enabling easier grip, alignment, and placement of the strap roll, reducing effort and improving visibility, allowing for nearly automatic roll swapping with minimal operator effort.
Implementation Method 1
the bearing journal is pivoted from its horizontal position in the direction of the vertical... due to the inclined or vertical position of the bearing journal, pushing the tape reel onto the bearing journal is much easier, since this movement is supported by the weight of the tape reel
Data Source
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AI summary
Strapping device for strapping an object with a strap (4) that can be removed from a strap roll (5) rotatable about an axis of rotation, comprising a frame (2) with a device (3) for conveying and retensioning the strap (4) and a holder (9) with a rotatable bearing pin (10) forming the axis of rotation for releasably receiving the strap roll (5), wherein the bearing pin (10) runs horizontally in the working position, wherein the holder (9) is pivotable laterally out of the frame (2) into a non-working position in which the bearing pin (10) is pivoted out of the horizontal position.