CN215003409U

CN215003409U - Super large area ceramic tile detection device

Info

Publication number: CN215003409U
Application number: CN202023259222.5U
Authority: CN
Inventors: 彭崇荣
Original assignee: Hangzhou Guanghan Technology Co ltd
Current assignee: Hangzhou Guanghan Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-03
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a not only low in production cost can carry out a large area ceramic tile detection device of simultaneous measurement to ceramic tile roughness and size moreover, including conveying mechanism and detection mechanism, conveying mechanism drives the ceramic tile through detection mechanism, camera unit among the detection mechanism includes that two at least industrial camera and industrial camera are a style of calligraphy and distributes along ceramic tile direction of delivery. The advantages are that: the ceramic tile detection device with the ultra-large area is characterized in that a plurality of industrial cameras are used for shooting in a coordinated mode, and an image splicing technology is adopted to restore a complete ceramic tile image, so that the requirement of pixels of the industrial cameras is greatly reduced, and the overall production cost of the device is reduced; secondly, the flatness and the size of the tile with the ultra-large area can be integrally detected by the tile with the ultra-large area detection device.

Description

Super large area ceramic tile detection device

Technical Field

The utility model relates to a not only low in production cost can carry out a super large area ceramic tile detection device of simultaneous measurement to ceramic tile roughness and size moreover belongs to and detects technical field.

Background

CN 110715623A entitled "a tile flatness detection device", including a complete machine frame, a conveying mechanism for conveying tiles is inserted under the complete machine frame, the front end of the complete machine frame is provided with an automatic centering machine for accurately and automatically positioning tiles before detection, the upper side in the complete machine frame is provided with an area array camera capable of freely adjusting the height and the left and right positions, a plurality of line lasers capable of freely adjusting the height, the left and right and the angle are arranged in the complete machine frame higher than the conveying mechanism, the front end of the complete machine frame is provided with a first photoelectric switch for controlling the area array camera and the line laser, the inner wall of the complete machine frame is also provided with a synchronous controller, the output of the first photoelectric switch is connected to the synchronous controller through a cable, the synchronous area array camera and the line laser work, the data output end of the area array camera is connected to a control console through a network cable, an ink-jet printer for marking the detected ceramic tiles and a second photoelectric switch for controlling the ink-jet printer are installed on the outer side of the whole machine frame, and the control console is connected with the ink-jet printer through an RS232 bus. When the ceramic tile is conveyed to the position below the area array camera through the conveying mechanism, the area array camera is located right above the ceramic tile. And a dust removal device for removing dust from the lens of the area array camera is arranged beside the area array camera. The control console is internally provided with an image processing industrial control computer, the upper part of the control console is provided with a display, the output end of the area array camera is connected to the image processing industrial control computer through a cable, and the display is used for displaying the detection result. A ceramic tile flatness detection method is characterized in that when a ceramic tile is conveyed to an automatic centering machine by a conveying mechanism, the automatic centering machine positions the ceramic tile to enable the position of the ceramic tile to be adjusted, when the ceramic tile passes through a first photoelectric switch, a synchronous controller sends a starting signal to an area array camera and a word line laser, the area array camera inputs acquired information to a control console, the control console sends a detection result to an ink jet printer for caching through operation, when the ceramic tile runs to a second photoelectric switch, a signal is sent to the control console, and after the control console receives the signal, the ink jet printer is controlled to perform graded numbering and code spraying to complete marking of the grade of the ceramic tile.

The control console is internally provided with an image processing industrial control computer, and the upper part of the control console is provided with a display; and the area array camera transmits the acquired information to an image processing industrial control computer, the image processing industrial control computer calculates the curvatures of the four sides, the center and the angular warping degree through 3D operation, and the detection result is sent to a display for displaying and an ink jet printer for caching. The disadvantages are that: firstly, the ceramic tile flatness detection equipment only has one camera, and extremely high resolution is needed when the ceramic tile with an ultra-large area is completely and clearly shot, so that the production cost of the equipment is greatly increased; secondly, this kind of ceramic tile roughness check out test set can't measure the size of ceramic tile.

SUMMERY OF THE UTILITY MODEL

The design purpose is as follows: in order to avoid the defects in the background technology, the ceramic tile detection device with the ultra-large area is designed, wherein the production cost is low, and the flatness and the size of the ceramic tile can be measured simultaneously.

The design scheme is as follows: the design purpose is realized.

1. Camera unit among the detection mechanism includes two at least industrial cameras and industrial camera and is the design that a style of calligraphy distributes along ceramic tile direction of delivery, is one of the technical characteristics of the utility model. The purpose of this design is: need the industry camera to shoot when carrying out roughness and size detection to the ceramic tile, this device adopts image mosaic technique to restore complete ceramic tile roughness and size image through many industry cameras in coordination shooting, can greatly reduced the manufacturing cost of device when detecting the ceramic tile of super large-area like this.

2. The light source unit in the detection mechanism can emit four surface light simultaneously and four surface light shines the design in the four corners of ceramic tile respectively when the ceramic tile flows through below the camera unit, is the utility model discloses a two technical characteristics. The purpose of this design is: when the ceramic tile flows through below the camera unit, the light source unit can simultaneously emit four surface light rays and four light rays to respectively irradiate the four corners of the ceramic tile, because the ceramic tile is different from the conveying belt in the light reflection effect, the light irradiation generated by the light emitting source presents a bright area on the corner of the ceramic tile, and the conveying belt irradiating around the corner is a dark area, so that the control computer can identify the corner vertex of the ceramic tile and calculate the accurate size of the ceramic tile.

3. The light source unit comprises four light emitting sources and four light emitting sources are all arranged above the conveying mechanism, which is the third technical feature of the present invention. The purpose of this design is: the width of the conveyer belt among the conveying mechanism is often greater than the width of ceramic tile in most use, and four light emitting sources in the light source unit all are located conveying mechanism's top, and the light that the light emitting source produced like this shines and can demonstrate bright area on the ceramic tile corner, and shines and can be the light dark area on the conveyer belt around this corner to make the apex angle of ceramic tile corner by more showing, and then improve size measurement's precision.

4. When the ceramic tile flows through below the camera unit, a word laser emission unit in the detection mechanism can emit six word laser lines simultaneously and six word laser lines correspond respectively and shine four limits and two diagonals of ceramic tile, and the camera unit can shoot the design of the whole up end of ceramic tile this moment, is the utility model discloses a four of technical characteristics. The purpose of this design is: when the ceramic tile measuring device is used, when a ceramic tile with a large area size flows below the camera unit, six lasers in the linear laser emitting unit are instantly lightened, each laser line is obliquely incident on a corresponding side long line and a corresponding diagonal line in the ceramic tile, a plurality of industrial cameras in the camera unit upload images to the control computer after photographing, the control computer can splice pictures to obtain a complete ceramic tile image, and the control computer can calculate the flatness of each side length and the diagonal line to realize accurate measurement; in addition, the service life of the device can be prolonged due to the fact that no contact and no mechanical motion exist in the whole process.

The technical scheme is as follows: the utility model provides a super large area ceramic tile detection device, includes conveying mechanism and detection mechanism, conveying mechanism drives the ceramic tile through detection mechanism, camera unit among the detection mechanism includes that two at least industrial camera and industrial camera are a style of calligraphy along ceramic tile direction of delivery and distributes.

Compared with the background art, the utility model, firstly, the ultra-large area tile detection device takes pictures by a plurality of industrial cameras in cooperation and restores the complete element image to be measured by adopting the image splicing technology, thus greatly reducing the requirement of the single industrial camera pixel, and further reducing the overall production cost of the device; secondly, the flatness and the size of the tile with the ultra-large area can be integrally detected by the tile with the ultra-large area detection device.

Drawings

Fig. 1 is a schematic top view of a tile inspection device with an oversized area.

Detailed Description

Example 1: reference is made to figure 1. The utility model provides a super large area ceramic tile detection device, includes conveying mechanism and detection mechanism, conveying mechanism drives ceramic tile 1 through detection mechanism, camera unit 2 among the detection mechanism includes that two at least industrial camera 21 and industrial camera 21 are a style of calligraphy and distribute along 1 direction of delivery of ceramic tile, the image that two adjacent industrial camera 21 shot has overlap region. The ceramic tile with the super-large area is a ceramic tile with the area larger than 1 square meter.

The light source unit 3 in the detection mechanism can emit four rays simultaneously and the four rays irradiate four corners of the tile 1, respectively, when the tile 1 flows under the camera unit 2. The light source unit 3 includes four light sources 31, and the four light sources 31 are all located above the conveying mechanism. The four light sources 31 are capable of emitting light simultaneously and four rays of light each strike a corresponding corner of the tile 1 as the tile 1 passes under the camera unit 2. The dimension measurement adopts the most reliable image projection type, and reflects the actual dimension of the ceramic tile most truly. The light generated by the light source 31 is a surface light.

When the tile 1 flows under the camera unit 2, the in-line laser emitting unit 4 in the detection mechanism can emit six in-line laser lines simultaneously, the six in-line laser lines respectively and correspondingly irradiate four edges and two diagonal lines of the tile 1, and at the moment, the camera unit 2 can shoot the whole upper end face of the tile 1. The in-line laser emitting unit 4 includes six in-line laser emitters 41, and the six in-line laser emitters 41 emit in-line laser lines obliquely downward. The flatness continuous curve adopts an electronic 3D structured light principle, and each edge can reach as many as 500 detection points, so that any defect error is not leaked, and particularly, the corners are easy to deform.

When the conveyor belt 5 in the conveying mechanism conveys one tile 1 to the detection area where the detection mechanism is located, the six in-line laser transmitters 41 emit laser to irradiate four side lines and two diagonal lines of the tile 1, and the camera unit 2 can shoot (vertically overlook) the tile 1 irradiated with the laser lines at the same time. Since the laser is of an oblique incidence type, when the laser line irradiates a convex portion of the tile 1, the laser line is bent in a direction of the in-line laser emitter 41 (in a plan view), whereas when the laser line irradiates a concave portion of the tile 1, the laser line is bent in an opposite direction, and the more prominently the protrusion (depression) of the tile 1, the more prominently the laser line is bent. The program calculates the warping data by densely sampling the laser lines collected by the camera, and then calculates the flatness of the tile.

Four light emitting sources 31 are located the top of four corners of ceramic tile 1 (a light emitting source 31 corresponds a corner of ceramic tile 1) when ceramic tile 1 reachs the detection area, camera unit 2 can transmit the image to the control computer after taking the image to ceramic tile 1 that four light emitting sources 31 illuminate, the control computer calculates the accurate size of ceramic tile 1 with the help of the positive light source (because ceramic tile 1 is different with the reflection effect that the conveyer belt was set a light to, the light that light emitting source 31 produced demonstrates bright area on ceramic tile 1 corner, and the conveyer belt that shines around this corner is the light dark area, the control computer just can discern the corner summit of ceramic tile 1 like this).

When the laser tile shooting device is used, when a tile 1 with a large area size flows below the camera unit 2, six lasers in the linear laser emitting unit 4 are instantly lightened, all laser lines are obliquely incident on corresponding side long lines and diagonal lines in the tile 1, a plurality of industrial cameras 21 in the camera unit 2 shoot images and then upload the images to a control computer, the control computer can splice pictures to obtain complete tile images, and the control computer can calculate the flatness of each side length and diagonal line. Then, the laser is turned off, the irradiation light (namely the light source unit 3) is lightened, four corners of the ceramic tile 1 are illuminated, the images are uploaded to the control computer after the plurality of industrial cameras 21 in the camera unit 2 take pictures, the control computer can splice the pictures to splice complete ceramic tile images, and the control computer can calculate the side length and the diagonal length of the ceramic tile 1. The time difference between the lighting from the laser and the lighting of the irradiation light is extremely short. During this process the tile 1 has travelled forward a small distance which does not affect the complete upper face of the tile 1 (the complete upper face of the tile 1 being lased and the complete upper face of the tile 1 being irradiated) being photographed.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. The utility model provides a super large area ceramic tile detection device, includes conveying mechanism and detection mechanism, conveying mechanism drives ceramic tile (1) through detection mechanism, characterized by: the camera unit (2) in the detection mechanism comprises at least two industrial cameras (21), and the industrial cameras (21) are distributed in a straight line along the conveying direction of the ceramic tile (1); when the tile (1) flows below the camera unit (2), the light source unit (3) in the detection mechanism can emit four light rays simultaneously, and the four light rays respectively irradiate four corners of the tile (1).

2. The device for detecting the ceramic tiles with the ultra-large areas as claimed in claim 1, which is characterized in that: the light source unit (3) comprises four light emitting sources (31), and the four light emitting sources (31) are all positioned above the conveying mechanism.

3. The device for detecting the ceramic tiles with the ultra-large areas as claimed in claim 1, which is characterized in that: when the ceramic tile (1) flows below the camera unit (2), the linear laser emitting unit (4) in the detection mechanism can emit six linear laser lines simultaneously, the six linear laser lines respectively and correspondingly irradiate four edges and two diagonal lines of the ceramic tile (1), and at the moment, the camera unit (2) can shoot the whole upper end face of the ceramic tile (1).