Screw Rope Inclined Guide Groove for Variable Screw Tightening
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Solution Overview
Problem
Existing screw tightening machines are limited by fixed coupling pitches of screws, restricting the types of screws that can be used based on screw head diameters and shapes, and struggle to adapt to highly variable configurations, especially when tightening members without preformed holes.
Innovation Solution
A screw rope with a belt-shaped member and binding strips that hold screws at oblique intervals and angles, allowing for adjustable guidance and orientation of screws to accommodate various screw sizes and shapes, and a guide projection part that maintains screws in an inclined state for smooth feeding and vertical alignment during tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If screws are arranged at fixed coupling pitches to match screw head diameters, then the tightening machine can operate smoothly, but the number of screw types that can be used is limited
Solution Approach 1:
The screw rope is designed with an inclined guide groove that dynamically adjusts the orientation and position of screws during feeding. The guide groove angle can be adjusted to match different screw head diameters and shapes, allowing the system to adapt to various screw types while maintaining smooth operation at fixed coupling pitches
Solution Approach 2:
The system changes the orientation angle and positional parameters of screws as they move through the inclined guide groove. By adjusting the guide groove angle and the inclination of screw holding portions, the system can accommodate different screw head diameters and shapes without changing the coupling pitch structure
2Device complexity
If the coupling pitch is fixed for a specific tightening machine, then the machine structure can be simplified, but the shapes of target screw heads are restricted
Solution Approach 1:
The guide groove and screw holding portions are designed to dynamically reorient screws based on their head shape and diameter. The inclined guide groove automatically adjusts screw orientation during the feeding process, allowing the fixed machine structure to handle variable screw head shapes without increasing complexity
Solution Approach 2:
The inclined guide groove acts as an intermediary element between the fixed machine structure and the variable screw types. It mediates the adaptation process by adjusting screw orientation and position, allowing the fixed coupling pitch structure to work with diverse screw head shapes
3Device complexity
If screws are arranged in a simple row formation, then the screw rope structure is simple, but screws with large head diameters interfere with each other
Solution Approach 1:
The screw holding portions are arranged in an inclined configuration rather than a simple linear row. This dimensional change in arrangement allows screws with large head diameters to be positioned at angles that prevent interference between adjacent screw heads while maintaining a relatively simple rope structure
Data Source
AI summary
A screw rope is configured to hold fixed portions of threaded parts of respective screws so as to be obliquely disposed at predetermined parallel intervals and at a predetermined inclination angle by a belt-shaped member which runs in a length direction and binding strips which are provided on the rear surface side of the belt-shaped member at predetermined intervals, to continuously form a guide groove on the front surface side of the belt-shaped member along a length direction thereof, to dispose many upper recessed parts at a position above the guide groove in a scattered state and over the entire length on the front surface side of the belt-shaped member and to dispose many lower recessed parts at a position under the guide groove in the scattered state and over the entire length.