Rotating Disk Screw Feeder Mechanism for Stable Alignment
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Solution Overview
Problem
Existing screw cutting out mechanisms face issues with limited picking up speed and rapid wear of moving parts due to reciprocal motion, and alignment problems with screws having larger heads or unique configurations.
Innovation Solution
A screw cutting out mechanism featuring a horizontally rotating disk with recesses at equal intervals, supported by a fixed and adjustable bearing system, and a slit disk with detection mechanism for precise control and synchronization with a stepping motor, allowing screws to be fed stably and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a reciprocal disk mechanism is used to cut out screws, then screws can be picked up, but the picking up speed is limited and moving parts wear rapidly
Solution Approach 1:
The patent inverts the conventional reciprocal motion approach by using unidirectional rotation of the disk. Instead of moving the disk back and forth to pick up and deposit screws, the disk rotates in one direction continuously, with pickup holes positioned to receive screws at specific intervals during the rotation. This eliminates the harmful deceleration and reversal phases that cause wear and limit speed.
Solution Approach 2:
The pickup holes are pre-positioned on the disk at specific angular intervals corresponding to the screw feeding rate. This preliminary positioning allows screws to be automatically captured at the correct moments during rotation without requiring complex timing mechanisms or reciprocal motion to align pickup and deposit points.
2Device complexity
If a guide member is arranged at the extracting position to pick up screws directly, then the mechanism is simple, but alignment of screws is collapsed when the screw has a larger head or unique configuration
Solution Approach 1:
The disk is segmented into multiple pickup holes distributed around its circumference. Each pickup hole acts as an independent screw capture point, allowing the system to handle various screw types and configurations. The segmentation of the pickup function across multiple holes maintains simplicity while improving alignment capability.
Solution Approach 2:
The invention transitions from a linear guide member approach to a rotational disk approach, adding the dimension of rotation. This allows screws to be picked up from a feeding position and transported to a deposit position through rotational motion, providing better control over screw orientation and position regardless of screw head size or configuration.
Data Source
AI summary
[Problem] To provide a screw cutting mechanism that can stably feed screws to a driver bit by stabilizing the position of the screws, and that has an accurate and smooth cutting action.[Solution] Provided is a screw cutting mechanism for cutting screws one at a time from a screw feeder, wherein: the cutting mechanism is equipped with a rotating disk that rotates horizontally; the outer circumference of the rotating disk comprises a recessed section that opens toward the axis of rotation and holds the screws therein; the rotating disk fits into a circular cavity in the upper section on the frame side; a rotating shaft attaches the rotating disk to the upper section on the frame side, is equipped with a fixed bearing section in the middle section on the frame side, and is equipped with an adjustable bearing section that can be secured to the lower section on the frame body side so that the attachment position is adjustable; a slit disk, which is equipped with a slit that corresponds to the recessed section, and a drive gear are fixed at suitable locations on the rotating shaft between the adjustable bearing section and the rotating disk; a detection mechanism for detecting the slit of the slit disk is provided; a stepping motor is controlled by a detection signal from the detection mechanism to drive the drive gear; and the rotating disk is rotated by a prescribed angle in one direction.