CN220072470U

CN220072470U - Double-disc type sheet workpiece image screening machine

Info

Publication number: CN220072470U
Application number: CN202320221117.7U
Authority: CN
Inventors: 施建峰; 施建立
Original assignee: Hangzhou Luobote Automation Equipment Co ltd
Current assignee: Hangzhou Luobote Automation Equipment Co ltd
Priority date: 2023-01-20
Filing date: 2023-01-20
Publication date: 2023-11-24
Anticipated expiration: 2033-01-20

Abstract

The utility model discloses a double-disc type sheet workpiece image screening machine which is used for multi-parameter detection of sheet workpieces, and comprises a main frame, a feeding unit, a screening unit, a detection unit, a separation unit and a controller, wherein the screening unit comprises a double-disc structure glass disc, the detection unit comprises an image device corresponding to the glass disc, the image device comprises an induction sensor, a contour detection mechanism, a front detection mechanism, a back detection mechanism, a thickness detection mechanism, a corresponding light source and a reflecting mirror, and the separation unit comprises an air blowing device and a discharging device.

Description

Double-disc type sheet workpiece image screening machine

Technical Field

The utility model relates to the technical field of workpiece screening, in particular to a double-disc type sheet workpiece image screening machine with small occupied space, high detection efficiency and low hardware cost.

Background

The quality detection of chain parts with the same specifications such as chain plates in a large batch is carried out in the chain manufacturing industry, the detection efficiency, the detection quality and the automation degree of the chain parts have quite important effects, the glass plate image screening machine is detection equipment, the patent number is CN2022219177037, the Chinese patent of the multi-angle image screening machine for sheet-shaped workpieces is China, the image screening machine for multi-layer glass plates is disclosed, the screening machine is provided with a plurality of image devices corresponding to the multi-layer glass plates, the well-arranged workpieces are respectively conveyed to the multi-layer glass plates, the images of the workpieces are acquired by utilizing a plurality of CCD high-precision industrial cameras on the top and the side surfaces and are uploaded to a computer for image digital processing, some characteristics such as shape, number and size on the workpiece images are extracted, and then comparison and identification are carried out according to preset reference target parameters, so that whether the detected workpieces are qualified or not is obtained, corresponding judgment is made, the qualified products and unqualified products are automatically separated and counted, the full-automatic detection and classification of the large-batch workpieces can be met, the image screening machine for the glass plates can meet the requirements of the position design and the limitation of a matched light source, the two-level glass plates are arranged, the large-size detection machine is high in efficiency, the detection process is realized, the large-scale detection space is only, the large-size detection requirement is met, and the large-scale inspection machine is high, and the requirement of the large-scale inspection machine is only is required, and the large-scale inspection machine is required to be used for the inspection, and the large-scale inspection machine.

Disclosure of Invention

The utility model mainly solves the technical problems; the double-disc type sheet workpiece image screening machine is small in occupied space, high in detection efficiency and low in hardware cost.

In order to solve the technical problems, the utility model mainly adopts the following technical scheme:

a dual-tray sheet workpiece image screening machine for multiparameter detection of sheet workpieces, the screening machine comprising:

the main frame is used for installing the feeding unit, the screening unit, the detection unit, the separation unit and the controller;

the feeding unit is used for arranging and conveying the workpieces to the glass plate with the double-layer structure and comprises a storage bin, a whole row machine corresponding to a discharging opening of the storage bin and two conveying belts connected with the outlet end of the whole row machine, wherein the two conveying belts are in one-to-one correspondence with the glass plate with the double-layer structure, and the whole row machine is electrically connected with the controller;

the screening unit comprises a double-layer structure glass disc arranged on the main frame, the glass disc is a high-light-transmittance glass disc, the double-layer structure glass disc is coaxial and driven by the same motor, the outlets of the two conveying belts respectively correspond to the glass disc and convey workpieces to the glass disc, and the motor is electrically connected with the controller;

the detection unit comprises a first image device and a second image device which correspond to the double-layer structure glass plate and are used for acquiring images of the workpiece, wherein the first image device corresponds to the upper layer glass plate, and the second image device corresponds to the lower layer glass plate;

the separation unit is used for classifying and outputting the detected workpieces, is positioned at the rear of the detection unit and corresponds to the glass disc, and comprises an air blowing device and a discharging device, wherein the air blowing device is externally connected with a high-pressure air source;

the controller is used for controlling the feeding unit, the screening unit, the detecting unit and the separating unit, wherein the image data acquired by the detecting unit are analyzed to form quality parameters of the workpiece, the quality parameters comprise a plurality of workpiece sizes, surface quality and contour information, and the controller is provided with a display screen and can display the quality information of the workpiece and the quality parameters of the workpiece classification quantity in real time;

adopt bilayer structure's glass dish design and by same motor drive, held the detection device of more return circuits in same space, make detection efficiency obtain doubly promoting, bilayer structure's glass dish shares same set actuating mechanism moreover, has effectively reduced the energy consumption, has reduced manufacturing cost and use cost, also make full use of equipment space.

Preferably, the first imaging device comprises an upper disc induction sensor, an upper disc contour detection mechanism, an upper disc front detection mechanism, an upper disc back detection mechanism and an upper disc thickness detection mechanism, the second imaging device comprises a lower disc induction sensor, a lower disc contour detection mechanism, a lower disc front detection mechanism, a lower disc back detection mechanism and a lower disc thickness detection mechanism, the corresponding detection mechanisms of the two imaging devices are distributed at intervals along the rotation direction of the glass disc and form a plurality of detection stations, the detection stations are distributed in a staggered mode, mutual interference is avoided during detection, the imaging precision is high, and the adjustment of a camera and a light source is also facilitated.

Preferably, the upper plate induction sensor is located above the upper layer glass plate and corresponds to the workpiece to be detected on the upper layer glass plate, the upper plate contour detection mechanism comprises an upper plate contour camera and a horizontal backlight source, the upper plate contour camera is located above the upper layer glass plate and the lens of the upper plate contour camera is downwards aligned with the workpiece to be detected on the upper layer glass plate, the horizontal backlight source is located below the upper layer glass plate and corresponds to the upper plate contour camera, the upper plate front detection mechanism comprises an upper plate front camera, the upper plate front camera is located above the upper layer glass plate and the lens of the upper plate front camera is downwards aligned with the front of the workpiece to be detected on the glass plate, the upper plate back detection mechanism comprises an upper plate back camera and an upper plate reflector, the upper plate back camera is located on the side surface of the upper layer glass plate and the lens of the upper plate back camera is aligned with the upper plate reflector, the upper disc reflector is arranged between the upper glass disc and the lower glass disc and positioned below the workpiece to be detected of the upper glass disc, the upper disc reflector is arranged at 45 degrees and faces the upper glass disc, the upper disc thickness detection mechanism comprises an upper disc thickness camera and a vertical backlight source, the upper disc thickness camera is positioned on the side face of the upper glass disc and the lens of the upper disc thickness camera is horizontally aligned with the workpiece to be detected on the upper glass disc, the vertical backlight source is positioned on the inner side of the upper glass disc and corresponds to the upper disc thickness camera, the upper disc reflector is arranged in the upper disc back image detection mechanism, the 45-degree mirror surface of the upper disc reflector is utilized to change the shooting direction of the upper disc back camera which is originally vertically arranged from vertical to horizontal, the occupied space of the camera is effectively reduced, the distance between the upper glass disc and the lower glass disc is correspondingly reduced, the screening machine has compact structure, small occupied space and high detection efficiency, and the front light source is arranged in front of the camera lens, the surface illuminance of the workpiece to be measured is improved, and the image quality of the surface appearance of the workpiece is improved.

Preferably, front light sources for light supplementing are arranged in front of lenses of the upper-disc front camera and the upper-disc back camera, through holes right opposite to the lenses of the cameras are formed in the centers of the front light sources, the front surfaces of the workpieces to be detected on the upper-disc front camera and the upper-disc back camera shoot the front surfaces and the back surfaces of the workpieces to be detected on the upper-layer glass disc through the through holes, and the front light sources are arranged in front of the lenses of the cameras to supplement light for the surfaces of the workpieces to be detected, so that the illuminance of the surfaces of the workpieces to be detected on the upper-layer glass disc is high, and the image quality of the surfaces of the workpieces is improved.

Preferably, the lower disc profile detection mechanism comprises a lower disc profile camera and a horizontal backlight source, the lower disc profile camera is positioned below the lower layer glass disc, the lens of the lower disc profile camera is upwards aligned with the reverse surface of the workpiece to be detected on the lower layer glass disc, the horizontal backlight source is positioned above the lower layer glass disc and corresponds to the lower disc profile camera, the lower disc front detection mechanism comprises a lower disc front camera and a lower disc reflecting mirror, the lower disc front camera is positioned on the side surface of the lower layer glass disc, the lens of the lower disc front camera is aligned with the lower disc reflecting mirror, the lower disc reflecting mirror is arranged between the upper layer glass disc and the lower layer glass disc and is positioned above the workpiece to be detected of the lower layer glass disc, the lower disc reflecting mirror is arranged at 45 degrees and faces the lower layer glass disc, the lower disc reverse surface detection mechanism comprises a lower disc reverse surface camera, the lower disc back side camera is located below the lower layer glass disc and the lens of the lower disc back side camera is upwards aligned with the back side of the workpiece to be detected on the lower layer glass disc, the lower disc thickness detection mechanism comprises a lower disc thickness camera and a vertical backlight source, the lower disc thickness camera is located on the side face of the lower layer glass disc and the lens of the lower disc thickness camera is aligned with the workpiece to be detected on the lower layer glass disc, the vertical backlight source is located on the inner side of the lower layer glass disc and corresponds to the lower disc thickness camera, a lower disc reflector is arranged in the lower disc front side image detection mechanism, the 45-degree mirror surface of the lower disc reflector is utilized, the shooting direction of the lower disc front side camera which is vertically arranged and is horizontally arranged from vertical, the occupied space of the camera is effectively reduced, the distance between the upper layer glass disc and the lower layer glass disc is correspondingly reduced, the screening machine is compact in structure, the occupied space is small, and the detection efficiency is high.

Preferably, front light sources for light supplementing are arranged in front of lenses of the lower-disc front camera and the lower-disc back camera, through holes right opposite to the lenses of the cameras are formed in the centers of the front light sources, the front surfaces of the workpieces to be detected on the lower-disc front camera and the lower-disc back camera shoot the front surfaces and the back surfaces of the workpieces to be detected on the lower-layer glass disc through the through holes, and the front light sources are arranged in front of the lenses of the cameras to supplement light for the surfaces of the workpieces to be detected, so that the illuminance of the surfaces of the workpieces to be detected on the lower-layer glass disc is high, and the image quality of the surfaces of the workpieces is improved.

Preferably, the blowing device comprises two nozzle assemblies which have the same structure and are in one-to-one correspondence with the double-layer structure glass plates, the nozzle assemblies are positioned on the inner sides of the corresponding glass plates, the discharging device is positioned on the outer sides of the double-layer structure glass plates and corresponds to the nozzle assemblies, and the detected sheet type workpiece workpieces on the double-layer structure glass plates are respectively classified and collected according to quality parameter requirements by utilizing the controllable high-pressure gas nozzle assemblies, so that the separating structure is simple, and the classification is accurate and quick.

Preferably, the nozzle assembly comprises a plurality of nozzles which are distributed along the rotation direction of the glass disc in sequence, the number of the nozzles corresponds to the quality parameters set by the detection unit, the nozzles are externally connected with electromagnetic valves and are externally connected with high-pressure air sources through the electromagnetic valves, the controller is electrically connected with the electromagnetic valves, the discharging device is provided with a plurality of discharging assemblies which are mutually separated and are in one-to-one correspondence with the nozzles, the discharging assemblies are provided with two discharging channels which are vertically arranged and are in one-to-one correspondence with the glass disc with double-layer structures, the discharging channels are externally connected with a classification workpiece box, the controller controls high-pressure air of the nozzles according to the quality parameter requirements of sheet type workpiece types, the workpieces with different quality parameters are blown off and fed into different discharging channels through the electromagnetic valves in the corresponding nozzle assemblies, and the two discharging channels with vertical openings can collect the workpieces on the double-layer glass disc and output the workpieces to the classification workpiece box in a summarizing manner, so that the workpieces can be rapidly classified and collected.

Preferably, the nozzle assembly comprises a first nozzle, a second nozzle, a third nozzle and a fourth nozzle which are distributed in sequence along the rotation direction of the glass disc, the discharge assembly comprises a first discharge channel, a second discharge channel, a third discharge channel and a fourth discharge channel, the first discharge channel is defined as a qualified product channel, the first discharge channel faces the first nozzle and receives workpieces blown off by the first nozzle, the second discharge channel is defined as a surface quality unqualified channel, the second discharge channel faces the second nozzle and receives workpieces blown off by the second nozzle, the third discharge channel is defined as a size unqualified channel, the third discharge channel faces the third nozzle and receives workpieces blown off by the third nozzle, the fourth discharge channel is defined as a retest channel, the fourth discharge channel faces the fourth nozzle and receives workpieces blown off by the fourth nozzle, the quality parameters of the workpieces are designed to be 4, the quality parameters including qualification, the size unqualification, the surface quality unqualification and retest, the controller controls the corresponding high-pressure gas through the 4 nozzles, the workpieces with different quality parameters are dropped off and sent to the corresponding output channels to the classification boxes.

The beneficial effects of the utility model are as follows: adopt bilayer structure glass dish design and by same motor drive, the detection device of having held more return circuits under the same area, make detection efficiency obtain doubly promoting, effectively reduced the energy consumption, simultaneously, set up 45 speculum between upper glass dish and lower floor's glass dish, utilize the specular reflection principle, with former built-in between the double-deck glass dish and the camera shooting direction that sets up perpendicularly change from vertical into the level setting, effectively reduced the occupation height of camera, correspondingly reduced the interval between upper glass dish and the lower floor's glass dish, make double-disk sieve separator structure compacter, occupation space is little, detection efficiency is high.

Drawings

Fig. 1 is a schematic view of a structure of the present utility model.

Fig. 2 is another schematic view of the structure of fig. 1.

Fig. 3 is a schematic view of yet another view of the structure of fig. 1.

Fig. 4 is a schematic top view of the structure of fig. 1.

FIG. 1, main frame, 2, conveyor belt, 3, glass pan, 4, first imaging device, 41, upper pan sensor, 42, upper pan profile detection mechanism, 421, upper pan profile camera, 422, horizontal backlight, 43, upper pan front detection mechanism, 431, upper pan front camera, 432, front light source, 44, upper pan back detection mechanism, 441, upper pan back camera, 442, upper pan mirror, 45, upper pan thickness detection mechanism, 451, upper pan thickness camera, 452, vertical backlight, 5, second imaging device, 51, lower pan sensor, 52, lower pan profile detection mechanism, 521, lower pan profile camera, 53, lower pan front detection mechanism, 531, lower pan front camera, 432, front light source, 54, lower pan back detection mechanism, 541, lower pan back camera, 542, lower pan mirror, 55, lower pan thickness detection mechanism, 551, lower pan thickness camera, 6, assembly, 61, nozzle, 7, discharge assembly, 71.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: the double-disc type sheet workpiece image screening machine is used for multi-parameter detection of sheet workpieces, such as

Drawing of the figure

1. As shown in fig. 2, 3, and 4, the screening machine includes:

the main frame 1 is used for installing a feeding unit, a screening unit, a detection unit, a separation unit and a controller;

the feeding unit is used for arranging and conveying the workpieces to the glass plate with the double-layer structure and comprises a storage bin, a whole row machine corresponding to a discharging opening of the storage bin and two conveying belts 2 connected with the outlet end of the whole row machine, wherein the two conveying belts correspond to the glass plate with the double-layer structure one by one, and the whole row machine is electrically connected with the controller;

the screening unit comprises a glass disc 3 with a double-layer structure, wherein the glass disc 3 is arranged on the main frame, the glass disc is a high-light-transmittance glass disc, the glass disc with the double-layer structure is coaxial and driven by the same motor, the outlets of the two conveying belts respectively correspond to the glass disc and convey workpieces to the glass disc, and the motor is electrically connected with the controller;

the detection unit comprises a first imaging device 4 and a second imaging device 5 which correspond to the double-layer structure glass plate and are used for acquiring images of the workpiece, wherein the first imaging device corresponds to the upper layer glass plate, and the second imaging device corresponds to the lower layer glass plate;

the controller is used for controlling the feeding unit, the screening unit, the detecting unit and the separating unit, wherein the image data acquired by the detecting unit is analyzed to form the quality parameters of the workpiece, the quality parameters comprise the information of the sizes, the surface quality, the contours and the like of a plurality of workpieces, and the controller is provided with a display screen and can display the quality information of the workpieces, the classifying quantity of the workpieces and the like in real time.

The first image device includes a top plate sensor 41, a top plate contour detecting mechanism 42, a top plate front detecting mechanism 43, a top plate back detecting mechanism 44 and a top plate thickness detecting mechanism 45, the second image device includes a bottom plate contour detecting mechanism 52, a bottom plate front detecting mechanism 53, a bottom plate back detecting mechanism 54 and a bottom plate thickness detecting mechanism 55, and the corresponding detecting mechanisms of the two image devices are distributed at intervals along the rotation direction of the glass plate and form a plurality of detecting stations.

The upper disc induction sensor in the first imaging device is positioned above the upper layer glass disc and corresponds to the workpiece to be detected on the upper layer glass disc and is used for detecting the position of the workpiece to be detected on the upper layer glass disc; the upper plate contour detection mechanism comprises an upper plate contour camera 421 and a horizontal backlight source 422, wherein the upper plate contour camera is used for detecting the external dimension of a workpiece to be detected on the upper layer glass plate, the upper plate contour camera is positioned above the upper layer glass plate, the lens of the upper plate contour camera is downwards aligned and shoots the dimension of the workpiece to be detected on the upper layer glass plate, and the horizontal backlight source is positioned below the upper layer glass plate and corresponds to the upper plate contour camera; the upper plate front detection mechanism comprises an upper plate front camera 431 and a front light source 432, wherein the upper plate front camera is used for detecting the front appearance quality of a workpiece to be detected on an upper layer glass plate, the upper plate front camera is positioned above the upper layer glass plate, the lens of the upper plate front camera is downwards aligned with the workpiece to be detected on the upper layer glass plate, the center of the front light source is provided with a through hole, the through hole is right opposite to the upper plate front camera, and the lens of the upper plate front camera shoots the front of the workpiece to be detected on the upper layer glass plate through the through hole; the upper disc back surface detection mechanism comprises an upper disc back surface camera 441, an upper disc reflector 442 and a front illumination source, and is used for detecting the back surface appearance quality of a workpiece to be detected on an upper layer glass disc, wherein the upper disc back surface camera is positioned on the side surface of the upper layer glass disc, the lens of the upper disc back surface camera is aligned to the upper disc reflector, the upper disc reflector is positioned between the upper layer glass disc and the lower layer glass disc and positioned below the workpiece to be detected on the upper layer glass disc, the mirror surface of the upper disc reflector is 45 degrees and faces the upper layer glass disc, a through hole is designed in the center of the front illumination source, the through hole corresponds to the upper disc back surface camera, and the lens of the upper disc back surface camera shoots the back surface of the workpiece to be detected on the upper layer glass disc through the through hole and the upper disc reflector; the upper disc thickness detection mechanism comprises an upper disc thickness camera 451 and a vertical backlight 452, and is used for detecting the thickness of a workpiece to be detected on the upper layer glass disc, wherein the upper disc thickness camera is positioned on the side surface of the upper layer glass disc, the lens of the upper disc thickness camera is aligned with the workpiece to be detected on the upper layer glass disc, and the vertical backlight is positioned on the inner side of the upper layer glass disc and corresponds to the upper disc thickness camera.

The lower disc induction sensor in the second imaging device is positioned above the lower layer glass disc and corresponds to the workpiece to be detected on the glass disc and is used for detecting the position of the workpiece to be detected on the lower layer glass disc; the lower disc profile detection mechanism comprises a lower disc profile camera 521 and a horizontal backlight source, wherein the lower disc profile camera is positioned below the lower glass disc and the lens of the lower disc profile camera is upwards aligned with the workpiece to be detected on the lower glass disc, and the horizontal backlight source is positioned above the lower glass disc and corresponds to the lower disc profile camera; the lower plate front detection mechanism comprises a lower plate front camera 531, a lower plate reflector 532 and a front illumination source, and is used for detecting the front appearance quality of a workpiece to be detected on a lower plate, wherein the lower plate front camera is positioned on the side surface of the lower plate, the lens of the lower plate front camera is aligned to the lower plate reflector, the lower plate reflector is arranged between the upper plate and the lower plate and positioned above the workpiece to be detected on the lower plate, the mirror surface of the lower plate reflector is 45 degrees and faces the lower plate, a through hole is designed in the center of the front illumination source, the through hole corresponds to the lower plate front camera, and the lens of the lower plate front camera shoots the front of the workpiece to be detected on the lower plate through the through hole and the lower plate reflector; the bottom plate back detection mechanism comprises a bottom plate back camera 541 and a front illumination source, and is used for detecting the appearance quality of the back surface of the workpiece to be detected on the lower glass plate, the bottom plate back camera is positioned below the lower glass plate, the lens of the bottom plate back camera is upwards aligned with the workpiece to be detected on the lower glass plate, a through hole is designed in the center of the front illumination source, the through hole corresponds to the bottom plate back camera, and the lens of the bottom plate back camera shoots the back surface of the workpiece to be detected on the lower glass plate through the through hole; the lower disc thickness detection mechanism comprises a lower disc thickness camera 551 and a vertical backlight source, and is used for detecting the thickness dimension of a workpiece to be detected on the lower glass disc, wherein the lower disc thickness camera is positioned on the side face of the lower glass disc, the lens of the lower disc thickness camera is aligned with the workpiece to be detected on the lower glass disc, and the vertical backlight source is positioned on the inner side of the lower glass disc and corresponds to the lower disc thickness camera.

The blowing device comprises a nozzle assembly 6, the nozzle assembly is arranged on the inner side of the glass disc, the nozzle assembly comprises four nozzles 61 which are arranged along the rotation direction of the glass disc, the four nozzles are a first nozzle, a second nozzle, a third nozzle and a fourth nozzle in sequence, the first nozzle is externally connected with a first electromagnetic valve and is externally connected with a high-pressure air source through the first electromagnetic valve, the second nozzle is externally connected with a second electromagnetic valve and is externally connected with the high-pressure air source through the second electromagnetic valve, the third nozzle is externally connected with a third electromagnetic valve and is externally connected with the high-pressure air source through the third electromagnetic valve, the fourth nozzle is externally connected with a fourth electromagnetic valve and is externally connected with the high-pressure air source through the fourth electromagnetic valve, and the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively electrically connected with the controller and are controlled by the controller; the discharging device is provided with four discharging components 7 which are separated from each other and are in one-to-one correspondence with the nozzles, the discharging components are provided with discharging channels 71 which correspond to the glass disc, wherein a first discharging channel is defined as a qualified product channel, the first discharging channel faces the first nozzle and receives workpieces blown off by the first nozzle, a second discharging channel is defined as a surface quality unqualified channel, the second discharging channel faces the second nozzle and receives workpieces blown off by the second nozzle, a third discharging channel is defined as a size unqualified channel, a third discharging channel faces the third nozzle and receives workpieces blown off by the third nozzle, a fourth discharging channel is defined as a retest channel, and the fourth discharging channel faces the fourth nozzle and receives workpieces blown off by the fourth nozzle.

When in use, the storage bin is fed to the arraying machine at regular time, the arraying machine is provided with two outlets, sheet-type workpiece is stably and uniformly distributed on two conveying belts after being vibrated and fed by the arraying machine, and then the sheet-type workpiece is orderly and respectively conveyed on glass plates on the double-layer glass plates, at the moment, the double-layer glass plates rotate under the drive of a servo motor, the workpiece to be detected is arranged and moved on the upper-layer glass plates and the lower-layer glass plates at intervals, the speed of the conveying belt or the rotating speed of the glass plates is adjusted, the interval distance between the workpiece can be correspondingly adjusted, when the workpiece on the upper-layer glass plates is detected, the upper-plate induction sensor detects the workpiece and sends the position signal of the workpiece into the controller, the controller combines the rotating speed of the glass plates and the speed of the conveying belt, when the workpiece reaches the corresponding image detection station after the time or interval is determined, the corresponding upper disc outline camera, upper disc front camera, upper disc back camera and upper disc thickness camera are triggered in sequence according to the requirements of control software and the workpiece to be detected, the outline of the workpiece, the front side and the back side of the workpiece and the thickness of the workpiece are photographed by images, meanwhile, the cameras send the image parameters into the controller to be compared and analyzed with the reference image parameters, so as to obtain the quality parameters of the workpiece, finally, when the workpiece continues to advance to the separation unit, the controller controls the corresponding electromagnetic valve in the nozzle assembly according to the quality parameters of the workpiece, high-pressure gas is blown out through the corresponding nozzle, the workpiece is blown to the upper glass disc and falls into the upper discharging channel, the quality screening, separation and summarization of the sheet-type workpiece on the upper glass disc are completed, and similarly, when the workpiece on the lower glass disc is detected, when the workpiece to be measured which is arranged to advance reaches a lower disc induction sensor of the second imaging device, the lower disc induction sensor detects the workpiece and sends a position signal of the workpiece into the controller, the controller combines the rotating speed of the glass disc and the speed of the conveying belt, after a certain time or interval, when the workpiece reaches a corresponding image detection station, the corresponding lower disc profile camera, the lower disc front camera, the lower disc back camera and the lower disc thickness camera are triggered in sequence according to the requirements of control software and the workpiece to be measured, the image photographing is carried out on the contour of the workpiece, the front side and the back side of the workpiece and the thickness of the workpiece, meanwhile, the cameras send the image parameters into the controller to carry out comparison analysis with the reference image parameters, and further obtain the quality parameters of the workpiece, finally, when the workpiece is continuously advanced to the separation unit, the controller controls the corresponding electromagnetic valve in the nozzle assembly according to the quality parameters of the workpiece, high-pressure gas is blown out through the corresponding nozzle, the workpiece is blown down to the lower layer glass disc and falls into a lower layer discharging channel, the quality collection and separation of the piece type workpiece on the lower layer glass disc are completed, the quality collection and the quality of the workpiece on the lower layer glass disc are rapidly screened, the quality of the workpiece is greatly screened, the quality is improved, the quality of the workpiece is measured in batches, the quality is detected, the quality is improved, the quality of the front side and the brightness of the workpiece is improved, the brightness of the front side and the quality of the workpiece is improved, and the brightness of the quality is achieved.

In the description of the present utility model, technical terms such as "upper", "lower", "front", "rear", "left", "right", "longitudinal", "transverse", "inner", "outer", etc. refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, and are merely for convenience of description and understanding of the technical solution of the present utility model, the present utility model is not limited to the above description, and the present utility model is not limited to the examples described above, but is also intended to be regarded as the scope of protection of the present utility model by those skilled in the art.

Claims

1. A double-disc type sheet workpiece image screening machine for multi-parameter detection of sheet workpieces, characterized in that the screening machine comprises:

the main frame (1) is used for installing a feeding unit, a screening unit, a detection unit, a separation unit and a controller;

the feeding unit is used for arranging and conveying the workpieces to the glass plate with the double-layer structure and comprises a storage bin, a whole row machine corresponding to a discharging opening of the storage bin and two conveying belts (2) connected with the outlet end of the whole row machine, wherein the two conveying belts are in one-to-one correspondence with the glass plate with the double-layer structure, and the whole row machine is electrically connected with the controller;

the screening unit comprises a glass disc (3) with a double-layer structure, wherein the glass disc is a high-light-transmittance glass disc, the glass disc with the double-layer structure is coaxial and driven by the same motor, the outlets of the two conveying belts respectively correspond to the glass disc and convey workpieces into the glass disc, and the motor is electrically connected with the controller;

the detection unit comprises a first image device (4) and a second image device (5) which correspond to the double-layer structure glass plate and are used for acquiring images of corresponding workpieces, wherein the first image device corresponds to the upper layer glass plate, and the second image device corresponds to the lower layer glass plate;

the controller is used for controlling the feeding unit, the screening unit, the detecting unit and the separating unit, wherein the image data acquired by the detecting unit are analyzed to form quality parameters of the workpiece, the quality parameters comprise a plurality of workpiece sizes, surface quality and thickness information, and the controller is provided with a display screen and can display the quality information of the workpiece and the workpiece classification quantity parameters in real time;

the first imaging device comprises an upper disc induction sensor (41), an upper disc outline detection mechanism (42), an upper disc front detection mechanism (43), an upper disc back detection mechanism (44) and an upper disc thickness detection mechanism (45), the second imaging device comprises a lower disc induction sensor (51), a lower disc outline detection mechanism (52), a lower disc front detection mechanism (53), a lower disc back detection mechanism (54) and a lower disc thickness detection mechanism (55), and the corresponding detection mechanisms of the two imaging devices are distributed at intervals along the rotation direction of the glass disc and form a plurality of detection stations.

2. The dual-tray sheet workpiece image screening machine of claim 1, wherein: the upper disc induction sensor (41) is located upper layer glass disc top and corresponds the work piece that awaits measuring on the upper layer glass disc, upper disc profile detection mechanism (42) are including upper disc profile camera (421) and horizontal backlight (422), upper disc profile camera is located upper layer glass disc's top and its camera lens is aimed at the work piece that awaits measuring on the upper layer glass disc downwards, horizontal backlight is located upper layer glass disc's below and corresponds with upper disc profile camera, upper disc front detection mechanism (43) are including upper disc front camera (431), upper disc front camera is located upper layer glass disc's top and the work piece front that awaits measuring on its camera lens is aimed at the glass disc downwards, upper disc reverse side detection mechanism (44) are including upper disc reverse side camera (441) and upper disc speculum, upper disc speculum is located upper layer glass disc side and its lens is aimed at upper disc speculum, upper disc speculum is arranged between upper layer glass disc and lower layer glass disc and is located upper layer glass disc work piece's below, upper disc front camera (431), upper disc front camera is located upper layer glass disc thickness 45 and the thickness of the upper disc is aimed at the thickness of upper layer glass disc (45) and the upper disc vertical side of the upper disc is located on the vertical side of the glass disc (45).

3. The dual-tray sheet workpiece image screening machine of claim 2, wherein: front lighting sources (432) for light supplementing are arranged in front of lenses of the upper-disc front camera (431) and the upper-disc back camera (441), through holes right opposite to the lenses of the cameras are formed in the centers of the front lighting sources, and the upper-disc front camera and the upper-disc back camera shoot the front and back surfaces of the to-be-detected workpieces on the upper-layer glass disc through the through holes.

4. The dual-tray sheet workpiece image screening machine of claim 1, wherein: the lower disc profile detection mechanism (52) comprises a lower disc profile camera (521) and a horizontal backlight source (422), the lower disc profile camera is located below the lower layer glass disc and the lens of the lower disc profile camera is upwards aligned with the back surface of the workpiece to be detected on the lower layer glass disc, the horizontal backlight source is located above the lower layer glass disc and corresponds to the lower disc profile camera, the lower disc front detection mechanism (53) comprises a lower disc front camera (531) and a lower disc reflector (532), the lower disc front camera is located on the side surface of the lower layer glass disc and the lens of the lower disc is aligned with a lower disc reflector, the lower disc reflector is arranged between the upper layer glass disc and the lower layer glass disc and is located above the workpiece to be detected on the lower layer glass disc, the lower disc reflector is arranged at 45 degrees and faces the lower layer glass disc, the lower disc back surface detection mechanism (54) comprises a lower disc back surface camera (541), the lower disc back surface camera is located below the lower layer glass disc and the lens of the lower layer glass disc and is upwards aligned with the back surface of the workpiece to be detected on the lower layer glass disc, the lower disc thickness detection mechanism (55) comprises a lower disc front surface camera (551) and the back surface of the lower disc is located on the back surface of the lower layer glass disc and corresponds to the thickness of the lower layer glass disc.

5. The dual-tray sheet workpiece image screening machine of claim 4, wherein: front lighting sources (432) for light supplementing are arranged in front of lenses of the lower disc front camera (531) and the lower disc back camera (541), through holes right opposite to the lenses of the cameras are formed in the centers of the front lighting sources, and the lower disc front camera and the lower disc back camera shoot the front and back surfaces of the to-be-detected workpieces on the lower layer glass disc through the through holes.

6. The dual-tray sheet workpiece image screening machine of claim 1, wherein: the blowing device comprises two nozzle assemblies (6) which are of the same structure and are in one-to-one correspondence with the double-layer structure glass plates (3), the nozzle assemblies are positioned at the inner sides of the corresponding glass plates, and the discharging device is positioned at the outer sides of the double-layer structure glass plates and corresponds to the nozzle assemblies.

7. The dual-tray sheet workpiece image screening machine of claim 6, wherein: the utility model discloses a glass dish, including glass dish, the nozzle subassembly (6) is including a plurality of nozzles (61) that distribute in proper order along glass dish direction of rotation, above-mentioned nozzle quantity with the quality parameter that detecting element set up is corresponding, the external solenoid valve of nozzle and through the external high-pressure air supply of solenoid valve, the above-mentioned solenoid valve of controller electricity connection, discharging device is equipped with a plurality of discharging components (7) of mutual separation and with above-mentioned nozzle one-to-one, be equipped with two vertical settings and with bilayer structure glass dish one-to-one discharging channel (71) on the discharging component, the external classification workpiece box of discharging channel.

8. The dual-tray sheet workpiece image screening machine of claim 7, wherein: the nozzle assembly (6) comprises a first nozzle, a second nozzle, a third nozzle and a fourth nozzle which are sequentially distributed along the rotating direction of the glass disc,

the discharging assembly (7) comprises a first discharging channel, a second discharging channel, a third discharging channel and a fourth discharging channel, wherein the first discharging channel is defined as a qualified product channel, the first discharging channel faces the first nozzle and receives a workpiece blown off by the first nozzle, the second discharging channel is defined as a surface quality disqualified channel, the second discharging channel faces the second nozzle and receives a workpiece blown off by the second nozzle, the third discharging channel is defined as a size disqualified channel, the third discharging channel faces the third nozzle and receives a workpiece blown off by the third nozzle, the fourth discharging channel is defined as a retest channel, and the fourth discharging channel faces the fourth nozzle and receives a workpiece blown off by the fourth nozzle.