Precision and foreign matter detection machine for display screen attached with polaroid

Abstract

The utility model discloses a precision and foreign matter detection machine for a display screen attached with a polaroid. The precision and foreign matter detection machine comprises a display screen feeding mechanism used for conveying the display screen attached with the polaroid; the tray supply mechanism is used for placing to-be-taken trays; the feeding carrying mechanism is used for picking up the display screen from the display screen feeding mechanism, carrying the display screen to a detection area of the precision detection mechanism, carrying the display screen from the precision detection mechanism and placing the display screen on the foreign matter detection platform. The precision detection mechanism is used for detecting the attaching precision of the display screen and the polaroid through a visual sensor; the foreign matter detection mechanism is used for detecting whether foreign matters exist on the surface of the display screen on the foreign matter detection platform; the discharging carrying mechanism is used for picking up the Tray from the Tray supply mechanism and placing the Tray on the Tray receiving mechanism, and picking up the qualified display screen from the foreign matter detection platform and placing the qualified display screen on the Tray of the Tray receiving mechanism. According to the utility model, automatic detection can be carried out on the display screen attached with the polaroid, so that the surface mounting quality is ensured.

Description

Technical Field

[0001] The utility model relates to a foreign matter and precision detection device after a display screen is attached with a polarizing film, in particular to a precision and foreign matter detection machine for a display screen attached with a polarizing film. Background Art

[0002] In the production process of LCD screens, it is necessary to detect the deviation of the screen, foreign matter and precision. Traditionally, the detection of foreign matter and precision after the display screen is mounted is done manually. Specifically, in the operation of the LCD production line, after the display screen has completed the process of attaching the polarizer, in order to ensure the quality of the finished product, it is necessary to conduct deviation, foreign matter and precision detection, so as to detect and screen out defective products. The traditional process uses manual and jigs to implement screening, which not only wastes a lot of materials and labor costs, but also reduces the detection accuracy due to visual fatigue. In addition, pollution and damage may also occur during the product inspection process. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the deficiencies in the prior art, a display screen accuracy and foreign body detection machine is provided which can automatically detect a display screen after a polarizer is attached, and screen out defective products such as biased attachment and foreign matter, thereby ensuring the quality of the attachment.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A display screen accuracy and foreign body detection machine with attached polarizer, comprising a machine platform, on which a display screen feeding mechanism, a tray supply mechanism, a feeding and conveying mechanism, an accuracy detection mechanism, a foreign body detection platform, a foreign body detection mechanism, a material unloading and conveying mechanism and a tray receiving mechanism are arranged, wherein: the display screen feeding mechanism is used to convey the display screen with attached polarizer; the tray supply mechanism is used to place the tray to be taken; the feeding and conveying mechanism is used to pick up the display screen from the display screen feeding mechanism and convey it to the detection area of ​​the accuracy detection mechanism, and The display screen is transported from the precision detection mechanism and placed on the foreign object detection platform; the precision detection mechanism is used to detect the attachment accuracy of the display screen and the polarizer through a visual sensor; the foreign object detection mechanism is used to detect whether there are foreign objects on the surface of the display screen on the foreign object detection platform through a visual sensor; the unloading and conveying mechanism is used to pick up the tray from the tray supply mechanism and place it on the tray receiving mechanism, and pick up the qualified display screen from the foreign object detection platform and place it on the tray of the tray receiving mechanism.

[0006] Preferably, the machine platform is provided with an NG material unloading conveying mechanism and an NG material unloading transporting mechanism, and the NG material unloading transporting mechanism is used to pick up the display screen that fails the inspection from the foreign matter detection platform and place it on the NG material unloading conveying mechanism.

[0007] Preferably, the NG unloading conveying mechanism extends along the edge of the machine table.

[0008] Preferably, the NG unloading and conveying mechanism is arranged in parallel with the display screen loading mechanism.

[0009] Preferably, a vertical bracket is fixed on the machine platform, the foreign object detection mechanism is fixed on the vertical bracket, and the foreign object detection mechanism is located above the foreign object detection platform.

[0010] Preferably, a cabinet is fixed on the machine platform, and the cabinet cover is arranged on the outside of the display screen loading mechanism, tray supply mechanism, loading and conveying mechanism, accuracy detection mechanism, foreign matter detection platform, foreign matter detection mechanism, unloading and conveying mechanism, tray receiving mechanism, NG unloading and conveying mechanism and NG unloading and conveying mechanism.

[0011] Preferably, the front end of the display screen loading mechanism and the rear end of the NG unloading conveying mechanism both extend toward the outside of the cabinet.

[0012] In the display screen accuracy and foreign matter detection machine with attached polarizer disclosed by the utility model, the display screen loading mechanism and the tray supply mechanism are respectively arranged on the front and rear sides of the machine, and the display screen loading mechanism is used to transport the display screen with attached polarizer, and at the same time, the tray supply mechanism is used to provide empty trays to be taken, and the unloading and conveying mechanism picks up the tray from the tray supply mechanism and places it on the tray receiving mechanism, waiting to place the display screen that has passed the inspection. After the display screen feeding mechanism delivers the display screen to its place, the feeding conveying mechanism is used to pick up the display screen from the display screen feeding mechanism, and then the display screen is conveyed to the detection area of ​​the precision detection mechanism, and the built-in CCD visual sensor of the precision detection mechanism is used to detect the attachment accuracy of the display screen and the polarizer, and then determine whether there are precision problems such as offset between the display screen and the polarizer. During this process, the feeding conveying mechanism continuously picks up the display screen to ensure the efficiency of the operation. After the offset detection, the feeding conveying mechanism places the display screen from the precision detection mechanism to the foreign object detection platform. The foreign object detection mechanism is provided above the foreign object detection platform. The foreign object detection mechanism detects whether there are foreign objects on the surface of the display screen through its built-in CCD visual sensor, thereby realizing the function of foreign object detection. For finished products that pass the inspection, the unloading conveying mechanism picks up the qualified display screen from the foreign object detection platform, and then places the qualified display screen on the Tray of the Tray receiving mechanism, thereby completing the receiving function. Compared with the prior art, the utility model can automatically detect the deviation and foreign matter of the display screen after the polarizer is attached, so as to screen out the defective products with deviation and foreign matter, and ensure that the good display screen is delivered to the subsequent process links, thereby improving the quality of the patch and better meeting the process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the display screen accuracy and foreign matter detection machine of the utility model;

[0014] Figure 2 This is a top view of the display screen accuracy and foreign matter detection machine of the utility model;

[0015] Figure 3 The structural diagram after the machine is assembled with a cabinet. DETAILED DESCRIPTION

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0017] The utility model discloses a display screen accuracy and foreign matter detection machine with attached polarizer, see Figure 1 and Figure 2, which includes a machine platform 1, on which a display screen loading mechanism 2, a tray supply mechanism 3, a loading and conveying mechanism 4, an accuracy detection mechanism 5, a foreign body detection platform 6, a foreign body detection mechanism 7, a material unloading and conveying mechanism 8 and a tray receiving mechanism 9 are provided, wherein:

[0018] The display screen feeding mechanism 2 is used to convey the display screen to which the polarizer has been attached;

[0019] The tray supply mechanism 3 is used to place the trays to be taken;

[0020] The loading and conveying mechanism 4 is used to pick up the display screen from the display screen loading mechanism 2 and convey it to the detection area of ​​the precision detection mechanism 5, and to convey the display screen from the precision detection mechanism 5 and place it on the foreign matter detection platform 6;

[0021] The precision detection mechanism 5 is used to detect the attachment precision of the display screen and the polarizer through a visual sensor;

[0022] The foreign matter detection mechanism 7 is used to detect whether there is a foreign matter on the surface of the display screen on the foreign matter detection platform 6 through a visual sensor;

[0023] The unloading and conveying mechanism 8 is used to pick up the tray from the tray supply mechanism 3 and place it on the tray receiving mechanism 9, and to pick up the display screen that has passed the inspection from the foreign matter detection platform 6 and place it on the tray of the tray receiving mechanism 9.

[0024] In the above structure, the display screen loading mechanism 2 and the tray supply mechanism 3 are respectively arranged on the front and rear sides of the machine 1. The display screen loading mechanism 2 is used to transport the display screen with the polarizer attached. At the same time, the tray supply mechanism 3 is used to provide empty trays to be taken. The unloading and conveying mechanism 8 picks up the trays from the tray supply mechanism 3 and places them on the tray receiving mechanism 9, waiting to place the display screen that has passed the inspection. After the display screen feeding mechanism 2 delivers the display screen to its place, the feeding conveying mechanism 4 is used to pick up the display screen from the display screen feeding mechanism 2, and then the display screen is conveyed to the detection area of ​​the precision detection mechanism 5, and the CCD visual sensor built in the precision detection mechanism 5 is used to detect the attachment accuracy of the display screen and the polarizer, and then determine whether there are precision problems such as partial attachment between the display screen and the polarizer. During this process, the feeding conveying mechanism 4 continues to pick up the display screen to ensure the efficiency of the operation. After the partial attachment detection, the feeding conveying mechanism 4 places the display screen from the precision detection mechanism 5 to the foreign matter detection platform 6. The foreign matter detection mechanism 7 is provided above the foreign matter detection platform 6. The foreign matter detection mechanism 7 detects whether there are foreign matters on the surface of the display screen through its built-in CCD visual sensor, thereby realizing the function of foreign matter detection. For the qualified finished products, the unloading conveying mechanism 8 picks up the qualified display screen from the foreign matter detection platform 6, and then places the qualified display screen on the Tray of the Tray receiving mechanism 9, thereby completing the receiving function. Compared with the prior art, the utility model can automatically detect the deviation and foreign matter of the display screen after the polarizer is attached, so as to screen out the defective products with deviation and foreign matter, and ensure that the good display screen is delivered to the subsequent process links, thereby improving the quality of the patch and better meeting the process requirements.

[0025] As a preferred method, this embodiment also has the function of blanking the unqualified display screens. Figure 1 and Figure 2 As shown, in this embodiment, the machine platform 1 is provided with an NG unloading conveying mechanism 10 and an NG unloading conveying mechanism 11, and the NG unloading conveying mechanism 11 is used to pick up the unqualified display screen from the foreign matter detection platform 6 and place it on the NG unloading conveying mechanism 10. In the above structure, the NG unloading conveying mechanism 10 moves in the front-to-back direction, and the NG unloading conveying mechanism 11 moves in the left-to-right direction. The movement trajectory of the NG unloading conveying mechanism 11 is perpendicular to the conveying trajectory of the NG unloading conveying mechanism 10, so that the NG unloading conveying mechanism 10 and the NG unloading conveying mechanism 11 are reasonably matched.

[0026] In this embodiment, the NG unloading conveying mechanism 10 extends along the edge of the machine table 1. Furthermore, the NG unloading conveying mechanism 10 is arranged in parallel with the display screen feeding mechanism 2. In the above structure, since the NG unloading conveying mechanism 10 is parallel to the display screen feeding mechanism 2, the display screen precision of the utility model is arranged in sequence with the entire incoming and outgoing directions of the foreign body detection machine, which can make the equipment easier to be added to the existing patch, assembly and other production lines.

[0027] In order to reliably support the foreign object detection mechanism 7, in this embodiment, a vertical bracket 12 is fixed on the machine 1, the foreign object detection mechanism 7 is fixed on the vertical bracket 12, and the foreign object detection mechanism 7 is located above the foreign object detection platform 6. Figure 1 In this embodiment, the foreign object detection mechanism 7 is fixed to the vertical bracket 12 through an adjustable horizontal support arm 120. The vertical bracket 12 can be a column. The vertical position of the adjustable horizontal support arm 120 can be adjusted to achieve focus adjustment of the built-in CCD visual sensor of the foreign object detection mechanism 7, etc.

[0028] In actual applications, the CCD visual sensor built into the precision detection mechanism 5 and the CCD visual sensor built into the foreign matter detection mechanism 7 are both used to capture the display screen image within their respective detection areas, and then the image is transmitted to the computer system, and the image analysis is performed using the visual processing algorithm in the computer system. These analysis algorithms are all well-known technologies, and the utility model does not elaborate on their specific algorithm principles.

[0029] In order to prevent dust and protect each mechanism, Figures 1 to 3 As shown, in this embodiment, a cabinet 13 is fixed on the machine 1, and the cabinet 13 is arranged to cover the outer sides of the display screen feeding mechanism 2, the tray supply mechanism 3, the feeding conveying mechanism 4, the accuracy detection mechanism 5, the foreign matter detection platform 6, the foreign matter detection mechanism 7, the unloading conveying mechanism 8, the tray receiving mechanism 9, the NG unloading conveying mechanism 10 and the NG unloading conveying mechanism 11. In this embodiment, by providing the cabinet 13, the display screen can be prevented from being contaminated by dust and other undesirable phenomena.

[0030] In order to facilitate the loading of display screens with attached polarizers and the unloading of unqualified display screens, please refer to Figure 3 In this embodiment, the front end of the display screen loading mechanism 2 and the rear end of the NG unloading conveying mechanism 10 both extend toward the outside of the cabinet 13 .

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A display screen accuracy and foreign matter detection machine with attached polarizer, characterized in that: The invention comprises a machine platform (1), wherein the machine platform (1) is provided with a display screen loading mechanism (2), a tray supply mechanism (3), a loading and conveying mechanism (4), an accuracy detection mechanism (5), a foreign matter detection platform (6), a foreign matter detection mechanism (7), a material unloading and conveying mechanism (8) and a tray receiving mechanism (9), wherein: The display screen feeding mechanism (2) is used to convey the display screen to which the polarizer has been attached; The tray supply mechanism (3) is used to place trays to be taken; The loading and conveying mechanism (4) is used to pick up the display screen from the display screen loading mechanism (2) and convey it to the detection area of ​​the precision detection mechanism (5), and to convey the display screen from the precision detection mechanism (5) and place it on the foreign matter detection platform (6); The precision detection mechanism (5) is used to detect the attachment precision between the display screen and the polarizer through a visual sensor; The foreign matter detection mechanism (7) is used to detect whether there is a foreign matter on the surface of the display screen on the foreign matter detection platform (6) through a visual sensor; The unloading and conveying mechanism (8) is used to pick up the tray from the tray supply mechanism (3) and place it on the tray receiving mechanism (9), and to pick up the display screen that has passed the inspection from the foreign matter detection platform (6) and place it on the tray of the tray receiving mechanism (9).

2. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 1, characterized in that: The machine platform (1) is provided with an NG material unloading conveying mechanism (10) and an NG material unloading transporting mechanism (11), wherein the NG material unloading transporting mechanism (11) is used to pick up the display screen that fails the inspection from the foreign matter detection platform (6) and place it on the NG material unloading conveying mechanism (10).

3. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 2, characterized in that: The NG material unloading conveying mechanism (10) extends along the edge of the machine platform (1).

4. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 3, characterized in that: The NG unloading and conveying mechanism (10) is arranged in parallel with the display screen loading mechanism (2).

5. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 1, characterized in that: A vertical bracket (12) is fixed on the machine platform (1), the foreign matter detection mechanism (7) is fixed on the vertical bracket (12), and the foreign matter detection mechanism (7) is located above the foreign matter detection platform (6).

6. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 2, characterized in that: A cabinet (13) is fixed on the machine platform (1), and the cabinet (13) is arranged on the outer side of the display screen loading mechanism (2), the tray supply mechanism (3), the loading and conveying mechanism (4), the accuracy detection mechanism (5), the foreign matter detection platform (6), the foreign matter detection mechanism (7), the unloading and conveying mechanism (8), the tray receiving mechanism (9), the NG unloading and conveying mechanism (10) and the NG unloading and conveying mechanism (11).

7. The display screen accuracy and foreign matter detection machine with attached polarizer as claimed in claim 6, characterized in that: The front end of the display screen loading mechanism (2) and the rear end of the NG unloading conveying mechanism (10) both extend toward the outside of the cabinet (13).

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