Diagonal photographing and positioning method for full-automatic laminating machine

Abstract

The invention relates to the technical field of laminating and positioning, in particular to a diagonal photographing and positioning method for a full-automatic laminating machine, which is characterized in that the center connecting line of two cameras is parallel to any diagonal line of a product, and the moving track of the product is intersected with the center connecting line of the two cameras; the first product is moved, so that the two opposite angles of the product are located in the photographing areas of the two cameras respectively, the two cameras conduct photographing once respectively, the intersection point of the transverse edge and the vertical edge of opposite angle photographing serves as two left side points, and the midpoint of the connecting line of the two left side points serves as a center point O; similarly, the central point O of the second product is calculated, and alignment and attachment are carried out in the mode that the central points O of the two products coincide and the diagonal lines coincide. Compared with the prior art, the diagonal photographing and positioning method for the full-automatic laminating machine table is beneficial to improving the production efficiency of the machine table and improving the production capacity of a production line.

Description

[Technical field]

[0001] The present invention relates to the field of laminating and positioning technology, and in particular to a diagonal photography and positioning method for a full-automatic laminating machine. [Background technology]

[0002] See also Figure 1 In the prior art, the TP and OCA are aligned and pasted together. Usually, two side-by-side corners A and B of the product 10 are moved to the position of the camera 20, and a photo is taken. Then, the other two side-by-side corners C and D are moved to the position of the camera 20, and another photo is taken. Two diagonal lines are drawn through the four corners, and the intersection of the diagonal lines is taken as the center point of the product 10. The center point of the TP and the center point of the OCA are aligned, and any two long vertical sides are parallel to each other to complete the bonding.

[0003] The existing bonding and alignment method requires running two positions to take pictures, and the system needs to display the alignment image twice. The alignment speed is slow, resulting in low bonding efficiency, which is not conducive to improving the production line capacity. [Summary of the invention]

[0004] In order to overcome the above problems, the present invention proposes a diagonal photography positioning method for a fully automatic laminating machine that can effectively solve the above problems.

[0005] A technical solution provided by the present invention to solve the above technical problem is to provide a diagonal camera positioning method for a fully automatic laminating machine, comprising the following steps:

[0006] Step S1, adjusting the installation position of the camera;

[0007] In the step S1, the positions of the two cameras are set so that the center line of the two cameras is parallel to any diagonal line of the product, and the running trajectory of the product intersects with the center line of the two cameras;

[0008] Step S2, move the first product so that the two diagonal corners of the product are respectively located in the photographing areas of the two cameras, and the two cameras take a photo respectively, and the intersection points of the horizontal and vertical sides of the diagonal photos are used as the two left points, and the midpoint of the line connecting the two left points is used as the center point O;

[0009] Step S3, repeating step S2, calculating the center point O of the second product, and aligning and pasting the two products by aligning the center points O of the two products and the diagonals.

[0010] Preferably, the center line of the two cameras may be parallel to the diagonal line of angle A and angle D, or parallel to the diagonal line of angle B and angle D.

[0011] Preferably, the running trajectories of the product corners A and C pass through the photographing area of ​​one camera, and the running trajectories of the product corners B and D pass through the photographing area of ​​another camera.

[0012] Preferably, in step S2, the coordinates of the center point O are calculated through the coordinates of the two left points, thereby determining the position of the center point O.

[0013] Preferably, in step S2, a product length tolerance is set to allow a length deviation within 0.5 mm.

[0014] Compared with the prior art, the diagonal photography and positioning method for the fully automatic bonding machine of the present invention changes the camera to a diagonal installation, changing the original two photography steps to one photography step, streamlining the photography and image display of the alignment system, reducing the image processing flow during system alignment, and shortening the time by 0.05s, which is beneficial to improving the production efficiency of the machine and improving the production capacity of the production line.

Brief Description of the Drawings

[0015] Figure 1 A schematic diagram of a diagonal photography positioning method for a bonding machine in the prior art;

[0016] Figure 2 It is a first schematic diagram of the diagonal photography positioning method of the fully automatic laminating machine of the present invention;

[0017] Figure 3 It is a second schematic diagram of the diagonal photography positioning method of the fully automatic laminating machine of the present invention. [Specific implementation method]

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] It should be noted that in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0020] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] See also Figure 2 and Figure 3The diagonal camera positioning method of the fully automatic laminating machine of the present invention comprises the following steps:

[0022] Step S1, adjusting the installation position of the camera 20.

[0023] In step S1 , the positions of the two cameras 20 are set so that the center line of the two cameras 20 is parallel to any diagonal line of the product 10 , and the running track of the product 20 intersects with the center line of the two cameras 20 .

[0024] The line connecting the centers of the two cameras 20 may be parallel to the diagonal line of the angle A and the angle D, or parallel to the diagonal line of the angle B and the angle D.

[0025] The running trajectories of corners A and C of the product 10 pass through the photographing area of ​​one camera 20 , and the running trajectories of corners B and D of the product 10 pass through the photographing area of ​​another camera 20 .

[0026] Step S2, move the first product 10 so that the two diagonal corners of the product 10 are respectively located in the shooting area of ​​the two cameras 20, and the two cameras 20 take a photo respectively. The intersection points of the horizontal and vertical sides of the diagonal photos are used as the two left points, and the midpoint of the line connecting the two left points is used as the center point O.

[0027] In step S2, the coordinates of the center point O are calculated through the coordinates of the two left points, thereby determining the position of the center point O.

[0028] Step S3, repeating step S2, calculating the center point O of the second product 10, and aligning and pasting the two products 10 so that the center points O and diagonals of the two products 10 coincide with each other.

[0029] The product 10 is TP and OCA glue.

[0030] In step S2, the original two moving pictures are changed to one moving picture through PLC software modification, which saves one position programming and one picture alignment operation in program control.

[0031] In step S2, through the visual programming of image alignment, the original alignment operation logic is a four-point alignment method: shoot the four corners of TP, and the intersection of the horizontal and vertical sides of each corner is used as a coordinate point. The coordinate diagonals of the four corners are connected to calculate the center point. Similarly, the principle of OCA is the same. The center point is calculated, and the center points of TP and OCA are aligned with the center points. Any long sides are parallel to complete the bonding.

[0032] The modified image alignment method is two-point midpoint alignment: TP takes a photo once, takes the diagonal of TP, and uses the intersection of the horizontal and vertical sides of the diagonal shot as the two left points. The coordinates of the center point are calculated based on the coordinates of the two left points, and the midpoint of the two left points is the center point. Similarly, OCA takes the diagonal shot to calculate the center point. The center points of TP and OCA are aligned with the diagonals coincident for alignment.

[0033] In step S2, in order to prevent the capture error of the diagonal image, the software program sets the product length tolerance. Originally, by taking pictures of the four corners, we could directly calculate whether the length was beyond the standard. Now, we judge whether there is any error based on the actual measured length value of the product (the length deviation is allowed within 0.5mm). Before making each model, we need to input the value of the long side and the value of the short side according to the length of the material.

[0034] Compared with the prior art, the diagonal photography and positioning method of the fully automatic bonding machine of the present invention changes the camera 20 to a diagonal installation, changing the original two photography steps to one photography step, streamlining the photography and image display of the alignment system, reducing the image processing flow during system alignment, and shortening the time by 0.05s, which is beneficial to improving the production efficiency of the machine and improving the production capacity of the production line.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A diagonal photography positioning method for a fully automatic laminating machine, characterized in that: The steps include: Step S1, adjusting the installation position of the camera; In the step S1, the positions of the two cameras are set so that the center line of the two cameras is parallel to any diagonal line of the product, and the running trajectory of the product intersects with the center line of the two cameras; Step S2, move the first product so that the two diagonal corners of the product are respectively located in the photographing areas of the two cameras, and the two cameras take a photo respectively, and the intersection points of the horizontal and vertical sides of the diagonal photos are used as the two left points, and the midpoint of the line connecting the two left points is used as the center point O; Step S3, repeating step S2, calculating the center point O of the second product, and aligning and pasting the two products by aligning the center points O of the two products and the diagonals.

2. The diagonal photography positioning method for a fully automatic laminating machine according to claim 1, characterized in that: The line connecting the centers of the two cameras may be parallel to the diagonal line of angle A and angle D, or parallel to the diagonal line of angle B and angle D.

3. The diagonal photography positioning method for a fully automatic laminating machine according to claim 1, characterized in that: The running trajectories of the product corners A and C pass through the photographing area of ​​one camera, and the running trajectories of the product corners B and D pass through the photographing area of ​​another camera.

4. The diagonal photography positioning method for a fully automatic laminating machine according to claim 1, characterized in that: In step S2, the coordinates of the center point O are calculated through the coordinates of the two left points, thereby determining the position of the center point O.

5. The diagonal photography positioning method for a fully automatic laminating machine according to claim 1, characterized in that: In step S2, the product length tolerance is set to allow the length deviation to be within 0.5 mm.

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