CN102009042B - Granular material shape-based selector - Google Patents

Abstract

The invention relates to a device that can identify and automatically separate particle materials according to their shapes, and belongs to the field of opto-mechanical application technology. The content of the invention is based on the existing photoelectric image scanning technology, image processing technology and embedded control technology Above all, realize a device that can automatically select according to the pre-set shape conditions. Solve the long-standing technical problem that particle materials are difficult to separate effectively and accurately according to graphics. The particle material shape selection device includes a single grain feeding mechanism, a posture adjustment feeding trough, a light source, an image scanning and data processing multifunctional integrated camera, an air selection execution structure, a collection bin, a constant air pressure source and an embedded control system; the present invention The beneficial effect of the method is that there are many application occasions for sorting tiny particle materials according to their shapes, and the quality detection of large quantities of tiny electronic devices and the quality classification of grains can also be used.

Description

A particle material shape selection device

technical field

The invention belongs to the technical field of opto-mechanical applications, and relates to a device capable of identifying and automatically separating particle materials according to their shapes, and specifically relates to a device with photoelectric image recognition technology as the core and fixed posture feeding device and air jet separation as the main structure A shape separation device and a shape separation method for particle materials.

Background technique

At present, the sorting of particle materials according to shape is generally done manually, because the particles of particle materials are very small, so the sorting accuracy is poor, the efficiency is low, and the time is long. For example, according to the national standard, it takes tens of minutes for 20 grams of the inspected material to detect the percentage of polished rice. Although there was a sorting machine for polished rice based on the principle of force balance before, it was still limited by many conditions and could not reflect the essence of "shape" selection.

The meaning of "shape selection" is to select according to the shape of the material. Using photoelectric image technology, the identification of specified conditions can be carried out on the basis of accurate image data.

Contents of the invention

On the basis of the existing photoelectric image scanning technology, image processing technology and embedded control technology, the present invention provides a particle material shape selection device that can automatically select according to preset shape conditions, and solves the long-term problem of particle material shape selection. It is difficult to effectively and accurately separate technical problems according to graphics.

Technical scheme of the present invention is as follows:

The particle material shape selection device includes a single-grain feeding mechanism, a posture adjustment feeding trough, a light source, a fast line array camera with image processing functions, an air selection execution structure, a collection bin, a constant pressure air source and an embedded control system;

The single-grain feeding mechanism is at the entrance of the device, and the material outlet of the single-grain feeding mechanism is placed on the attitude-adjusting feeding chute, leaving a certain space between the two; while the material accelerates the downward movement on the attitude-adjusting feeding chute, it passes through the attitude-adjusting feeding chute. The adjusted material posture meets the recognition requirements at the outlet, and can ensure a certain space interval between the moving material particles.

The light source is set above the detection part of the lower end of the attitude adjustment feeding chute, the light source bracket is connected with the attitude adjustment feeding chute, and the light source irradiates the light source at a certain angle (determined by the bracket) on the detection part of the attitude adjustment feeding chute, with a distance of 3-5 between centimeters. Different materials should choose light sources with different wavelengths, which is conducive to the quality of imaging; usually, semiconductor LED light sources can be used, and 3+3 watt white LED light sources are generally selected.

The fast line array camera with image processing function is the core unit of the whole machine. It uses a high-speed linear array charge-coupled device as a sensor, scans and images the material during the fast movement of the material, and performs data processing and judges whether it is selected or not. Signal the selected drive. The fast line array camera with image processing function is fixed by a bracket, and the installation position is: its lens is perpendicular to the image scanning area near the outlet of the attitude adjustment feeding trough, and the distance is 8-10 cm. The other end of the fast line-scan camera with image processing function is connected with the embedded control system with a communication line to exchange data and instructions with the embedded control system.

The air selection actuator, air pressure source, air storage tank, and constant air pressure controller form a set of air circuit action system. The pneumatic selection execution structure is composed of an electronically controlled fast air valve and a nozzle. It receives the driving control signal sent by the fast line array camera with image processing function, and sends out a short pneumatic pulse with a pre-set time constant to send the selected material to into the collection bin; the constant air pressure controller controls the air pressure of the air storage tank at about 3kg.

The collection bin includes the selected material collection bin and the non-selected material collection bin, which respectively collect the separated materials of two different shapes. There is an automatic door at the silo mouth, which is controlled by the embedded control system.

The electronic scale is an optional equipment, which is selected when the selected materials need to be weighed. It is connected with the embedded control system and the data is transmitted to the embedded control system.

The embedded control system has a liquid crystal display, an operation keyboard, an internet interface, and other communication interfaces for connection with other equipment; it can perform remote data transmission and remote control; it has a panel printer for on-site printing of test data. The embedded control system is the control core of the whole device, which can set the parameters of the fast line array camera with image processing function; output data; adjust the working state; control the intensity of the light source and select the wavelength; control the switch action of the material collection bin ; Control the work of electronic scales and data collection and transmission. The embedded control system can also monitor the working status of the whole machine and give an alarm for faults.

The beneficial effects of the present invention are: there are many application occasions for sorting tiny particle materials according to shapes, for example: the detection of the national rice whole rice rate is still manual detection, which takes a long time and has large human errors; hybrid electronic devices are classified according to parameters or shapes Automatic sorting etc., still can't do at present; In addition, the quality detection of large batches of tiny electronic devices and the quality classification of grain all need the technology of the present invention.

Description of drawings

Accompanying drawing is the structural representation of the present invention.

In the figure: 1 single-grain feeding mechanism; 2 attitude adjustment feeding trough; 3 light source; 4 fast line array camera with image processing function; 8 constant pressure source; 9 embedded control system; 10 internet interface; 11 other communication interfaces; 12 printer interface; 13 electronic scale.

Detailed ways

The particle material shape selection device includes a single grain feeding mechanism 1, an attitude adjustment feeding trough 2, a light source 3, a fast line array camera with image processing function 4, an air separation execution structure 5, a collection bin, a constant pressure air source 8 and an embedded Type control system 9 and other equipment;

The single-grain feeding mechanism 1 is at the entrance of the device, and its material outlet is placed in a posture-adjusting feeding trough, leaving a certain space gap;

The light source 3 is set above the detection part at the lower end of the posture adjustment feeding trough. Different materials should choose light sources with different wavelengths, which is conducive to the quality of imaging; usually a semiconductor LED light source can be used, and generally a 3+3 watt white LED light source is selected.

The fast line camera 4 with image processing function is the core unit of the whole machine. The fast line array camera is fixed by a bracket, and the installation position is: its lens is perpendicular to the image scanning area near the outlet of the attitude adjustment feeding trough, and the distance is 8-10 cm. The other end of the fast line scan camera is connected with the embedded control system with a communication line to exchange data and instructions with the embedded control system.

The air selection actuator 5, the air pressure source, the air storage tank, and the constant air pressure controller form a set of air circuit action system. The constant air pressure controller controls the air pressure of the air storage tank at about 3kg.

The collection bin includes the selected material collection bin and the non-selected material collection bin, which respectively collect the separated materials of two different shapes. There is an automatic door at the silo mouth, which is opened and closed under the control of the embedded control system.

Electronic scale 13 is an optional equipment, which is selected when the selected materials need to be weighed.

The embedded control system 9 has a liquid crystal display, an operation keyboard, an internet interface and other communication interfaces for remote data transmission and remote control; a panel printer is provided for on-site printing of testing data.

Claims (2)

1. particle class material shape screening device, the Express Order Wire array camera (4), the gas that comprise simple grain feed mechanism (1), attitude adjustment chute feeder (2), light source (3), have an image processing function select execution architecture (5), collecting bin, constant voltage pneumatic supply (8) and embedded control system (9); It is characterized in that,

Simple grain feed mechanism (1) is at the device portal place, and the material outlet of simple grain feed mechanism is placed attitude adjustment chute feeder (2), leaves the gap between the two; Material through the adjusted material attitude of attitude adjustment chute feeder, reaches recognition requirement in outlet when on attitude adjustment chute feeder, quickening downglide motion, and the interval between the material grain grain that can guarantee to move;

Light source is arranged on the top, detection position of the lower end of attitude adjustment chute feeder, and light source bracket links to each other with attitude adjustment chute feeder, and light source is with the detection position of light source irradiation at attitude adjustment chute feeder, and distance is between 3-5 centimetre; Different materials should select the light source of different wave length;

Having the Express Order Wire array camera of image processing function, is the core cell of complete machine, is fixed by support, and the installation site is: its camera lens is perpendicular near the image scanning district the outlet of attitude adjustment chute feeder, and distance is 8-10 centimetre; The other end with Express Order Wire array camera of image processing function is connected with communication line with embedded control system, and data and instruction and embedded control system are intercoursed;

Gas selects executing agency and pneumatic supply, air accumulator, permanent gas pressure regulator to form a cover gas circuit moving system; Gas selects execution architecture to be made up of automatically controlled quick air valve and nozzle, and its receives the drive control signal that Express Order Wire array camera with image processing function sends, and with the time constant that configures in advance, sends the artery of losing heart and dashes, and will choose material to send into collecting bin; The air pressure of permanent gas pressure regulator control air accumulator is about 3kg;

Collecting bin comprises selects material collecting bin and the non-material collecting bin of selecting, and collects separated 2 kinds of variform materials respectively; Hatch Opening and the non-Hatch Opening of selecting the material collecting bin of selecting the material collecting bin all have automatic door, receive the embedded control system gauge tap;

Embedded control system has LCDs and operation keyboard, and the internet interface is arranged, and also has other communication interfaces to supply to be connected with other equipment; Can carry out remote data transmission and remote control; There is the panel type printer to supply field print to detect data; Embedded control system is the control core of whole device, can carry out the parameter setting to the Express Order Wire array camera with image processing function; Data output; The duty adjustment; Can control the intensity of light source, select wavelength; Can control the switch motion in material collection storehouse; Embedded control system can also carry out Working Status Monitoring, fault alarm to complete machine.

2. a kind of particle class material shape screening device according to claim 1 is characterized in that, device also comprises electronic scale, when need are weighed the material that has selected, selects for use, is connected with embedded control system, and data are imported embedded control system into.

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