Screw Detection Rail With Automated Size Adjustment

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Solution Overview

Problem

Existing screw detection devices require manual adjustment of rotary disks and detection cameras for different screw sizes, leading to increased detection errors and defect rates, and it is difficult to distinguish between production and detection errors.

Innovation Solution

A screw detection device with a linear carrying rail and automated mechanisms, including a controlling module, top and lateral visual-detection mechanisms, and adjustable guide-rails, which automatically adjusts to different screw sizes without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual adjustment of rotary disks and detection cameras is used for different screw sizes, then the device can detect multiple screw sizes, but the detection error rate increases and operation convenience decreases

Engineering Contradiction:

Improvedetection of different screw sizesVSAvoiddetection accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system uses image recognition technology to automatically identify screw specifications and trigger corresponding adjustments of the rotary disk and camera focal length, eliminating manual intervention and reducing human error in the detection process

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system automatically changes key parameters including rotary disk position, camera focal length, and carrier rail spacing based on recognized screw specifications, enabling accurate detection across different screw sizes without manual adjustment

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If manual adjustment of rotary disks and detection cameras is used for different screw sizes, then the device can detect multiple screw sizes, but operation convenience and efficiency decrease

Engineering Contradiction:

Improvedetection of different screw sizesVSAvoidadjustment convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system replaces manual mechanical adjustment operations with automated image recognition and motor-driven positioning mechanisms, allowing operators to simply place screws on the carrier rail while the system handles all subsequent adjustments automatically

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system autonomously completes the entire adjustment process from screw recognition to rotary disk positioning and camera focal length adjustment, making the device self-sufficient and eliminating the need for manual intervention

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If rotary disks are changed manually for different screw sizes, then the device can adapt to different specifications, but time consumption and complexity increase

Engineering Contradiction:

Improvedetection of different screw sizesVSAvoidadjustment time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

Multiple rotary disks with different detection recess configurations are pre-prepared and stored in the device, allowing the system to quickly select and switch between them based on recognized screw specifications without time-consuming manual assembly

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Motor-driven positioning mechanisms automatically rotate and position the appropriate rotary disk into place, replacing slow manual switching operations with rapid automated mechanical movement

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If manual refocusing of detection cameras is used for different screw sizes, then the device can detect different specifications, but detection error rate increases

Engineering Contradiction:

Improvedetection of different screw sizesVSAvoiddetection reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system automatically adjusts camera focal length parameters based on recognized screw specifications, ensuring optimal focus for each screw type and eliminating refocusing errors that occur with manual adjustment

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The camera system autonomously adjusts its own focal length based on feedback from the image recognition system, creating a self-correcting mechanism that maintains detection reliability across different screw specifications

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12350714B2Screw detection device

Publication Date: 2025.07.08 SIN JIN INTELLIGENT TECHNOLOGY CO LTD

AI summary

A screw detection device is configured to detect screws and has a device base with a controlling module, a carrying mechanism, a top visual-detection mechanism and a lateral visual-detection mechanism mounted inside. A screw is fed into the device base and is carried on two guide-rail assemblies of a carrying rail of the carrying mechanism. A top visual-detection camera of the top visual-detection mechanism and a lateral visual-detection camera of the lateral visual-detection mechanism take photographs of the screw on the carrying rail. The controlling module determines whether the screw is defective based on the photographs and controls a classifying assembly to discard a defective screw. The controlling module automatically controls the carrying rail, the top visual-detection camera and the lateral visual-detection camera, letting the screw detection device meet different-size screws' detection needs. Therefore, manual adjustments are unnecessary, reducing adjusting time and reducing errors from adjusting the device.