Glass Turntable Visual Sorting Machine

Technical Parameters

The visual inspection equipment consists of a feeding part and an inspection main unit

This is an automated inspection device developed for various parts' dimensions, appearance, and other defects. It uses feeding mechanisms such as vibratory bowls to automatically transport parts to a glass turntable, where the visual inspection station performs image processing on the parts. The motion controller completes the constant-speed rotation of the glass turntable and controls the multi-station CCD cameras and air blow devices through encoder feedback and hardware position comparison output, achieving fully automatic multi-surface appearance and dimension inspection and sorting. It can achieve inspection speeds up to 320 pcs per minute. The market turntable visual sorting machine is widely used in 3C electronics, lithium batteries, electronic components, semiconductors, hardware, and other industrial manufacturing fields. 
 

Product Introduction: 
Utilizing the high light transmittance of glass, objects can be stably placed on the inspection plate or inspected if they can lie flat.

Inspection Range: Precision electronics, chip resistors, capacitors, inductors, diodes, transistors, semiconductor chips, ceramic, photoelectric ceramics, fixed ceramics, vacuum ceramics, resistor substrate ceramics, insulator part ceramics, ferroelectric ceramics, piezoelectric ceramics, magnetic core ceramics, and other polyhedral products.

Capable of detecting:

Applicable Industry Display:

Screw Inspection:

Thread Angle

Thread Quality

Thread Outer Diameter

Thread Pitch

Internal Thread Inspection

Double-ended Screw Inspection

Thread Damage Inspection

Line Scan Thread Damage

Other Inspections:

Ring Opening

Straight Length

Straight Opening

Wheel Crack Inspection

Single Character Inspection

Multiple Circle Inspection

U-shaped Inspection

Pin Hole Inspection

Defects on Tape

Multiple Character Defects

Battery Character Inspection

Edge Defects

1. Motion Controller Introduction

Capable of linear interpolation, arc interpolation, continuous trajectory processing, and other complex motion control functions; supports IO high-speed latch input/precise output and position synchronous output (PSO), very suitable for turntable visual sorting equipment with 2-8 visual inspection stations.

01 Advantages of Controller Application on Turntable Visual Sorting Machine

• Can control the turntable in real time and record encoder feedback position;
• High-speed input port connects to sensors to sense and record part feeding positions;
• PSO hardware position comparison output can connect 2-8 cameras for visual flying shooting, inspection, and measurement;
• PSO hardware position comparison output can connect to air blow ports to perform corresponding sorting classification based on visual inspection results.

Controller Principle Diagram Based on Turntable Visual Screening Function

II. Principle of Glass Turntable Visual Screening Machine

1. Working Principle

First, parts are conveyed to the high-transparency glass turntable via a vibration plate. Then, sensors detect the incoming parts, and the controller records the actual position of the parts at the input port with high-speed latching. When the turntable rotates to the visual inspection station, the controller triggers the camera to take photos through the high-speed output port, then performs image processing calculations, and finally conducts automatic inspection and screening based on preset detection standards, removing defective products.

2. Principle of Motion Control System

The turntable-type visual screening system based on a motion controller has higher system integration, response speed, and efficiency compared to traditional PLC + touch screen solutions. During the rapid movement of the glass turntable, the camera is hardware-triggered to perform visual flying shots of the materials for image processing, and the corresponding screening classification results are output in real time, significantly improving detection speed.

Hardware Solution of Motion Controller Based on Turntable Visual Screening Equipment

3. Principle of Visual System

According to the rotational speed requirements of the turntable, certain requirements must be met for the camera's photo response, exposure time, pixels, and light source control methods to complete functions such as visual flying shots, measurement, and inspection of different parts based on the motion speed.

III. Application of Motion Controller Cooperating with Vision in Turntable Visual Screening Equipment

1. System Operation Process

Loading Products to be Inspected

According to the type of material, select the corresponding vibration plate to convey parts onto the high-transparency glass turntable, where the turntable rotates at a set constant speed;

Sensing Materials and Recording Position

When the sensor detects the material, the high-speed latch port based on the laser sensor records the current position of the material;

Camera Triggering to Take Photos

Using the latched position from the high-speed latch port, calculate the positions of each camera. The motion controller's internal hardware position comparison outputs trigger the cameras to perform visual flying shots;

Visual System Processing

Perform visual inspection, measurement, recognition, and other functions on the photographed material images, and transmit OK or NG signals to the motion controller; air blowing screening

Based on the results feedback from the visual system to the motion controller and the material position latched by the sensor, calculate the position of the air blowing port. The motion controller's internal hardware position comparison outputs control the air blowing port to screen good/bad products.

Screen Different Samples into Material Trays

2. Advantages of the Solution

Stable detection results with high consistency;

Automatically screen and classify defective products and remove them, improving product quality;

Visual flying shots reduce machine CT compared to static shooting, improving efficiency;

One operator can operate one machine to replace 2-6 workers, increasing productivity;

Online monitoring of whether each production inspection process is reliable and effective;

Compared to traditional PLC + touch screen solutions, it has higher integration, better cost performance, faster response, and higher efficiency.