CN217059978U

CN217059978U - Detection mechanism for distinguishing dust and defects on glass surface

Info

Publication number: CN217059978U
Application number: CN202220507036.9U
Authority: CN
Inventors: 王郑; 王岩松; 和江镇; 王鑫; 刘永旺
Original assignee: Focusight Technology Co Ltd
Current assignee: Focusight Technology Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-26
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a detection mechanism for distinguishing glass surface dust and defects, in particular to a detection mechanism for distinguishing glass surface dust and defects, which aims to solve the problem that the existing detection machine cannot distinguish dust fall and point-shaped defects to cause over-killing, and provides a detection mechanism for distinguishing glass surface dust and defects, which comprises an imaging module, a dry wiping module and a conveying unit, wherein the imaging module and the dry wiping module are arranged above the conveying unit, the imaging module is positioned at the rear end of the dry wiping module, the dry wiping module comprises a unwinding part, a winding part and a dry wiping part, the unwinding part and the winding part are arranged on the same axis at intervals, dust-free cloth is arranged on the unwinding part and the winding part in a unwinding and winding manner, the dry wiping part is arranged between the unwinding part and the winding part, the dry wiping part comprises a cylinder and a telescopic head arranged at the telescopic end of the cylinder, the telescopic head is supported against the back of the dust-free cloth between the unwinding part and the winding part, the dustless cloth openly towards the conveying unit, to sum up the utility model has the characteristics of simple structure and detection rate of accuracy height.

Description

Detection mechanism for distinguishing dust and defects on glass surface

Technical Field

The utility model relates to a distinguish the detection mechanism of glass surface dust and defect, especially a distinguish the detection mechanism of glass surface dust and defect.

Background

Firstly, products in the prior art directly enter a detection machine to be detected after passing through a cleaning machine, secondly, dust inevitably exists in a production workshop and a detection machine, the dust can not be distinguished due to the fact that imaging is consistent with point defects after falling on a product detection surface, and the detection machine can not distinguish falling dust and point defects, so that over-killing is caused, and the falling dust can be used as NG products with the point defects.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem that the existing detection machine cannot distinguish falling dust and point-shaped defects to cause over-killing, a detection mechanism for distinguishing dust and defects on the surface of glass is provided.

The utility model provides a technical scheme that its technical problem adopted is: a detection mechanism for distinguishing dust and defects on the surface of glass comprises an imaging module, a dry wiping module and a conveying unit, wherein the imaging module and the dry wiping module are arranged above the conveying unit, the imaging module is located at the rear end of the dry wiping module, the dry wiping module comprises a unwinding part, a winding part and a dry wiping part, the unwinding part and the winding part are arranged on the same axis at intervals, the axis is parallel to a conveying belt of the conveying unit, dust-free cloth is arranged on the unwinding part and the winding part in a unwinding and winding manner, the dry wiping part is arranged between the unwinding part and the winding part and comprises an air cylinder and a telescopic head arranged at the telescopic end of the air cylinder, the telescopic head abuts against the back face of dust-free cloth between the unwinding part and the winding part, and the front face of the dust-free cloth faces the conveying unit.

Further, a light source is arranged between the imaging module and the dry wiping module, and the light source irradiates towards the direction of the conveying unit at an angle.

Further, the light source is a bar light source

Further, the imaging module is a line scanning module.

Furthermore, the telescopic head and the unwinding part or the winding part move synchronously, the telescopic head extends out of the unwinding part to unwind cloth, and the telescopic head retracts into the winding part to wind cloth.

Furthermore, a plurality of auxiliary roller shafts used for guiding the advancing direction of the dust-free cloth are arranged between the unwinding part and the winding part.

Further, the air cylinder is a servo electric cylinder.

The utility model has the advantages that the utility model discloses a distinguish detection mechanism of glass surface dust and defect, adopt the mode of detection, dry wiping, detection to distinguish dust and defect on surface, this mechanism is applied to between wiper mechanism and the detection mechanism, sweep module and dry wiping module group by the line and constitute, wherein the configuration of sweeping the module by the line is unanimous with the line of detection module and sweeps the configuration, can sharp formation of image dust and defect, add this mechanism, after the product passes through wiper mechanism, the column line is swept first to be detected and is deposited picture A, pass through the line of detection module after dry wiping and sweep detection and deposit picture B, compare picture B and picture A, if newly increase the defect chart at the same position, judge that the dust that falls disappears if the defect chart disappears at the same position, and the defect chart that does not change the position all the time judges as true defect, can distinguish dust and defect on product surface from this, reduce the rate of killing of crossing about 5% of complete machine, to sum up the utility model has the characteristics of simple structure and high detection accuracy rate.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, the device comprises a mechanical arm 1, a product 2, a conveying unit 3, an imaging module 4, an unreeling part 5, a reeling part 6, an auxiliary roller shaft 7, an air cylinder 8, a telescopic head 9 and a light source 10.

Detailed Description

The present invention will now be described in further detail with reference to the drawings and preferred embodiments. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

The detection mechanism for distinguishing dust and defects on the surface of glass as shown in fig. 1 comprises an imaging module 4, a dry wiping module and a conveying unit 3, wherein the imaging module 4 is the same as the modules in the prior detection mechanism, a line scanning module, namely a line scanning camera is adopted in the prior detection mechanism, a light source 10 is arranged at the front end of the line scanning camera for ensuring enough illumination, a bar-shaped light source is adopted in the figure, the bar-shaped light source is used for polishing an object to be detected, the layout of the line scanning camera and the bar-shaped light source is the same as that of the prior detection mechanism, the design is that in order to facilitate comparison, after a product 2 passes through a cleaning mechanism, a line scanning detection map A is firstly carried out, after dry wiping, a line scanning detection map B is carried out, the map B is compared with the map A, if a defect small map is newly added at the same position, the newly added dust is judged, and if the defect small map is disappeared at the same position, the small defect map with the invariable position is judged as a real defect, so that dust falling and the defect on the surface of the product 2 can be distinguished, and the over-killing rate of the whole machine is reduced by about 5%; the prior detection mechanism is the existing and is not the main protection object of the scheme, so the prior detection mechanism does not have an attached drawing.

The imaging module 4 and the dry wiping module are arranged above the conveying unit 3, the imaging module 4 is positioned at the rear end of the dry wiping module, the dry wiping module comprises an unwinding part 5, a winding part 6 and a dry wiping part, the unwinding part 5 and the winding part 6 are arranged on the same axis at intervals, the axis is parallel to a conveying belt of the conveying unit 3, and the conveying belt is omitted in the figure and is not shown in the figure;

one is put one and is received installing dustless cloth on unreeling portion 5 and rolling portion 6, in order to make the better advance of dustless cloth and accurate wiping product 2, it is used for guiding dustless cloth advancing direction's auxiliary roll axle 7 still to have set up between unreeling portion 5 and the rolling portion 6, the portion of wiping futilely has been installed between unreeling portion 5 and the rolling portion 6, the portion of wiping futilely includes cylinder 8, cylinder 8 supports the back at dustless cloth for the telescopic head 9 of its flexible end of the servo electric cylinder of purchase in market, the front of dustless cloth is towards conveying unit 3, telescopic head 9 and unreeling portion 5 or 6 synchronous motion of rolling portion, telescopic head 9 stretches out unreeling portion 5 and unreels cloth, telescopic head 9 returns and unreels 6 receipts cloth of rolling portion.

The manipulator 1 transports the product 2 of mechanism in the front to conveying unit 3, conveying unit 3 carries product 2 to move ahead, servo electronic jar drive flexible head 9 stretches out, unreel portion 5 and emit dustless cloth, product 2 continues to move ahead after being wiped futilely, servo electronic jar drive flexible head 9 withdrawal, rolling portion 6 withdraws dustless cloth, 2 warp scanning camera detection deposit pictures B of product after being wiped futilely, the system will detect deposit pictures B and the detection that obtains earlier deposit pictures A and compare.

The product 2 mentioned in the scheme is a mobile phone screen, in particular to a mobile phone inner screen, and dust is wiped in a dry way; the housing and the housing mounted outside the housing are also omitted from the figure.

While the foregoing description describes only certain embodiments of the invention, it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a distinguish detection mechanism of glass surface dust and defect which characterized in that: the dry cleaning device comprises an imaging module, a dry cleaning module and a conveying unit, wherein the imaging module and the dry cleaning module are arranged above the conveying unit, the imaging module is located at the rear end of the dry cleaning module, the dry cleaning module comprises a unwinding part, a winding part and a dry cleaning part, the unwinding part and the winding part are arranged on the same axis at intervals, the axis is parallel to a conveying belt of the conveying unit, a piece of dustless cloth is installed on the unwinding part and the winding part in a unwinding mode, the dry cleaning part is installed between the unwinding part and the winding part and comprises an air cylinder and a telescopic head installed at the telescopic end of the air cylinder, the telescopic head abuts against the back face of the dustless cloth between the unwinding part and the winding part, and the front face of the dustless cloth faces towards the conveying unit.

2. The mechanism of claim 1, wherein the mechanism is further configured to distinguish between dust and defects on the glass surface: and a light source is also arranged between the imaging module and the dry wiping module, and the light source irradiates towards the direction of the conveying unit at an angle.

3. The mechanism of claim 2, wherein the mechanism is further configured to distinguish between dust and defects on the glass surface: the light source is a strip light source.

4. The detection mechanism for distinguishing dust from defects on a glass surface according to claim 1 or 2, wherein: the imaging module is a line scanning module.

5. The mechanism of claim 1, wherein the mechanism is configured to distinguish between dust and defects on the glass surface: the telescopic head and the unwinding part or the winding part move synchronously, the telescopic head stretches out of the unwinding part to unwind cloth, and the telescopic head retracts to wind the cloth in the winding part.

6. The mechanism of claim 1, wherein the mechanism is further configured to distinguish between dust and defects on the glass surface: a plurality of auxiliary roller shafts used for guiding the advancing direction of the dust-free cloth are further arranged between the unwinding part and the winding part.

7. The mechanism of claim 1, wherein the mechanism is further configured to distinguish between dust and defects on the glass surface: the air cylinder is a servo electric cylinder.