Gripping Device Wedge Protrusions Anti-Sticking
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Solution Overview
Problem
Existing gripping devices for binding materials often suffer from inefficiency due to the binding material sticking to the device, particularly between moving parts, which hampers the opening process of objects like bales.
Innovation Solution
A gripping device with stationary first and second elongated blades featuring wedge-shaped protrusions and a movable third blade with finger-like protrusions, designed to grip and catch the binding material without sticking, ensuring reliable operation and easy manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a gripping device with moving blades is used to grip and remove binding material, then the binding material can be effectively removed from objects, but the binding material may stick to the gripping device between moving parts, causing inefficiency
Solution Approach 1:
The gripping device is divided into multiple independent blades (first blade, second blade, third blade) with distinct functions. The first and second blades provide stationary gripping surfaces with wedge-shaped protrusions, while the third blade moves to close the grip. This segmentation prevents binding material from sticking between moving parts since only one blade moves relative to stationary ones, eliminating the sticking problem while maintaining effective binding material removal
Solution Approach 2:
Instead of having all blades move to grip the binding material, the invention inverts the conventional approach by making two blades stationary and only one blade movable. The stationary blades with wedge-shaped protrusions provide the gripping surface, while the movable third blade completes the closure. This inversion eliminates sticking between moving parts while maintaining gripping effectiveness
2Reliability
If stationary blades with wedge-shaped protrusions are used, then binding material sticking is minimized, but the device may have limited adaptability to different binding material sizes
Solution Approach 1:
The third blade is designed to be movable relative to the stationary first and second blades, allowing the gap between blades to dynamically adjust. When the third blade moves toward the stationary blades, it closes the grip to accommodate smaller binding materials. When positioned away, it allows larger binding materials to be inserted. This dynamic adjustment maintains anti-sticking performance while providing adaptability to different binding material sizes
Solution Approach 2:
The gripping device changes the spatial parameter (gap size) between blades by moving the third blade relative to the stationary blades. This parameter change allows the device to accommodate binding materials of different sizes while maintaining the stationary blade configuration that prevents sticking. The movable third blade adjusts the grip tightness without requiring the stationary blades to move
Data Source
AI summary
A gripping device for gripping a binding material from an object comprises first and second elongated blades. The first and second elongated blades are arranged parallel and stationary in relation to each other, and they comprise wedge-shaped protrusions. The adjacent wedge-shaped protrusions of each elongated blades form spacing between said adjacent wedge-shaped protrusions. The device comprises also a third elongated blade arranged between said first and second elongated blades. The third elongated blade comprises finger like protrusions, and is arranged to move in relation to said first and second elongated blades in the direction of said longitudinal axis and between first and second positions. In the first position the finger like protrusions form openings and in the second position the finger like protrusions are deflected from the first position so to closing the openings.