TWI568570B - Coating detection method and device thereof - Google Patents

Description

Glue testing method and device thereof

The invention relates to a glue coating technology of a hot melt adhesive, in particular to a glue coating detection method and a device thereof.

It is known that a solar panel is a solar cell in which a plurality of solar cells are interposed between two substrates, and a conductive line is connected between the batteries to the side of the glass frame to conduct electric energy collected and converted by the solar battery. In order to prevent liquid (such as water) from penetrating between the two substrates, the hot melt adhesive is applied to the sides of the two substrates before the two substrates are bonded, so that the liquid can be prevented after the two substrates are bonded together. Infiltration, thereby increasing the durability of the solar panel.

At present, the application of hot melt adhesive on the substrate is mostly carried out by an automatic glue applicator, and the automatic applicator must be able to effectively control the amount of hot melt adhesive applied when the hot melt adhesive is applied to the substrate. To avoid the following two major problems:

1. When the coating amount of the hot melt adhesive is insufficient, after the two substrates are bonded, the hot melt adhesive between the two substrates is difficult to achieve the sealing effect, so that the liquid easily penetrates between the two substrates, and further Reduce the durability of solar panels.

2. When the amount of hot melt adhesive is too much, the hot melt adhesive between the two substrates is squeezed and overflows to the periphery of the frame around the substrate during the bonding process, forming a stagger. In this case, it is necessary to add an additional process burden to scrape off the residual material of the hot melt adhesive.

Therefore, some developers have developed such as Taiwan patent M459029 A glue-coated head which can change the direction of the nozzle is formed by applying a hot-melt adhesive to the substrate by a glue nozzle having a long hole-shaped glue outlet, and the glue outlet can change direction to make the hot melt adhesive The coating can be applied in a flat shape and sandwiched between the frame edges of the two substrates, which can effectively control the amount of hot melt adhesive applied and improve the bonding and adhesion quality between the two substrates.

However, at the end of the above-mentioned gluing operation, it is still necessary to rely on human beings to visually or rely on the detection of the hot melt adhesive applied to the substrate one by one to confirm whether there is such a problem as overflow, uneven thickness, and insufficient width. And so on, due to the lack of automatic detection of the function, and even affect the efficiency of quality control testing.

In view of the above, an object of the present invention is to improve the problem of inefficiency in conventionally detecting a hot melt adhesive applied to a substrate.

Therefore, an embodiment of the present invention provides a method for detecting a glue coating, the technical means comprising: providing a rubber head with biaxial moving capability, applying a glue path according to a substrate, and The glue path is imaged by a charge coupled element that follows the movement of the glue head, wherein the charge coupled element follows at least one of the biaxial movements of the glue head.

More specifically, the above technical features may be further implemented such that the charge-coupled component further comprises providing a light source through the at least one light-emitting component.

The glue path is formed by a quadrilateral trajectory comprising a first glue path, a second glue path, a third glue path and a fourth glue path in the order of glue application.

The charge-coupled component is imaged by the glue applicator during the fourth glue path.

The diagonal line is also included between the third glue path and the fourth glue path.

The above method can be realized by a device technology, Therefore, an embodiment of the present invention provides a glue application detecting device, comprising: a substrate; a sliding table, providing a Y-direction slideway, and the sliding table is slidably disposed on a pair of X-direction slide rails parallel to each other. a rubber-coated head is slidably disposed on the Y-direction slide of the slide table, and the glue-coated head is moved along the X-axis and the Y-axis via the slide table to apply a glue path on the substrate; wherein A plurality of charge coupled elements are fixed on the slide table, and the charge coupled elements follow the slide table in the X-axis direction to take an image of the glue path.

More specifically, the above technical features may be further implemented such that the plurality of charge coupled elements are arranged along the Y axis.

A light-emitting element is further included, disposed on a side of the charge-coupled element, and providing a light source when the charge-coupled element is imaged.

The glue application path includes a first glue application path, a second glue application path, a third glue application path and a fourth glue application path, the first glue application path and the third glue application path being parallel to the Y-axis direction The second glue path and the fourth glue path are parallel to the X axis.

The diagonal line is also included between the third glue path and the fourth glue path.

According to the above technical means, the invention has the advantages that: by means of a plurality of charge-coupled elements arranged in a linear manner, the hot-melt adhesive in the glue-coated path can be followed by following the movement of the glue-coated head in the X-axis direction during the coating process. Visual inspection, thereby reducing the time required for human visual inspection or instrument detection one by one, to achieve the effect of completion of the glue application, to improve the efficiency of automatic detection.

The specific implementation details of the above-mentioned methods and devices and the specific implementation details thereof will be described with reference to the following embodiments and drawings.

10‧‧‧Substrate

11‧‧‧Glue path

111‧‧‧First glue path

112‧‧‧Second glue path

113‧‧‧ Third glue path

114‧‧‧The fourth glue path

115‧‧‧Slanted glue path

121, 122, 123, 124, 125‧‧‧ anchor points

20‧‧‧Glue head

30‧‧‧ slide table

31‧‧‧Y-direction slide

32‧‧‧ drive

40‧‧‧X-direction slide

50‧‧‧Charge-coupled components

60‧‧‧Lighting elements

61‧‧‧Main light-emitting elements

62‧‧‧Sub-lighting elements

70‧‧‧Hot melt adhesive

80‧‧‧ Vehicles

X, Y‧‧‧ axial

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the procedure of a glue coating detecting method of the present invention.

Fig. 2 is a schematic view showing the configuration of a glue detecting device of the present invention.

Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2;

4 to 8 are schematic views of the operation of the glue application detecting device of the present invention, respectively.

Please refer to FIG. 1 , which illustrates a method for detecting a glue applied by the present invention, including performing the following steps S1 to S3:

Step S1: providing a rubberized head.

In an implementation, as shown in FIG. 2, the present invention is to provide a rubberized head 20 having a biaxial movement capability. The above biaxial directions are referred to as an X axis and a Y axis, that is, the The glue head 20 is movable in the X-axis and the Y-axis, whereby the hot-melt adhesive carried in the applicator head 20 is applied to an article (for example, a substrate).

Step S2: Apply glue along the glue application path.

In practice, as shown in FIG. 2, the substrate 10 is moved through a carrier (such as a chain, a belt, a roller, etc.) to the underside of the rubberized head 20. The substrate 10 is implemented as a quadrangular plate. The head 20 is coated with a hot melt adhesive on the substrate 10 along a glue application path 11. The glue path 11 is formed by a quadrilateral trajectory, and the quadrilateral trajectory is located at the periphery of the substrate 10, the quadrilateral The track-adhesive sequence includes a first glue application path 111, a second glue application path 112, a third glue application path 113, and a fourth glue application path 114, and the third glue path 113 and the fourth glue path The glue application path 114 further includes a diagonal glue application path 115, which sequentially passes through the first glue application path 111, the second glue application path 112, the third glue application path 113, and the oblique line glue path 115. And the fourth glue application path 114 is coated with the hot melt adhesive on the substrate 10 around the formed glue path 11 .

Step S3: The charge coupled device takes an image.

In practice, as shown in FIG. 2, the present invention further includes a charge coupled device 50 that can follow the movement of the rubberized head 20. More specifically, the charge coupled device 50 can follow the biaxial direction of the rubberized head 20. At least one of the axial movements, the axial direction herein refers to the X-axis direction described above. Moreover, the charge coupled device 50 further provides a light source through the at least one light emitting element 60 when taking an image. In implementation The charge coupling element 50 is movable in the X-axis for taking the glue path 11 to be imaged. More specifically, after the rubberizing head 20 sequentially passes through the first coating path 111, the second coating path 112, and the third coating path 113 along the coating path 11, the diagonally coated path 115 and the fourth are applied. During the application of the glue path 114, the charge coupling element 50 begins to image the glue path 11 to which the hot melt adhesive has been applied, such as the first glue path 111 and the second glue path 112 described above. And the third glue application path 113, and after the glue head 20 applies the hot melt adhesive 70 to the diagonal glue application path 115 and the fourth glue application path 114, the charge coupling element 50 continues to diagonally apply the glue path 115 and The four-coating path 114 performs image capturing, and after the glue-coated head 20 finishes coating the glue-coated path 11, the charge-coupled element 50 also completes the image-taking operation of the glue-coated path 11.

On the other hand, referring to FIG. 2 and FIG. 3 together, the present invention also provides a glue application detecting apparatus which can be easily implemented. The glue detecting device includes the substrate 10, the glue head 20, and the charge coupling element 50 described above. Wherein: the rubberizing head 20 is a sliding group and a sliding table 30. More specifically, the rubberizing head 20 is slidably disposed on a Y-direction slide 31 of the sliding table 30, and the Y-direction slide 31 is connected. There is a driver 32 which is movable in the Y-axis direction by driving of the driver 32. In practice, the slide table 30 is slidably disposed on a pair of mutually parallel X-direction slide rails 40, and the slide table 30 can be moved in the X-axis direction by driving the X-direction slide rails 40, thereby applying the glue. The head 20 has a biaxial movement capability that moves in the X and Y directions.

The substrate 10 can be moved to the underside of the glue head 20 by the carrier 80. The glue path 11 is pre-planned on the substrate 20. As can be seen from the above, the glue path 11 is the first glue path. 111, the second glue application path 112, the third glue application path 113, the oblique line glue path 115 and the fourth glue application path 114 are sequentially wound, and the glue head 20 can pass through the slide table 30 and the X-direction slide rail 40. After the driving, the hot glue is applied to the substrate 10 through the above-mentioned glue path 11 , and in practice, the first glue path 111 and the third glue path 113 are driven. It is parallel to the Y-axis, and the second glue path 112 and the fourth glue path 114 are parallel to the X-axis.

The charge coupled device 50 is fixed to the slide table 30, and the charge coupled device 50 can follow the slide table 30 to move in the X-axis direction to take an image of the glue path 11. Further, the number of the charge-coupled elements 50 is plural in implementation, and in the present embodiment, four, the charge-coupled elements 50 are fixed to the slide table at intervals spaced in a line along the Y-axis. 30, wherein the spacing between the charge coupling elements 50 at the double ends of the straight line is equal to the spacing between the second glue path 112 and the fourth glue path 113, and the charge coupling element 50 is located at the second coating Directly above the glue path 112 and the fourth glue path 113, when the charge coupling element 50 is moved in the X-axis direction, the first glue path 111 and the third glue path 113 can be imaged, and The second glue path 112 and the fourth glue path 114 can be imaged.

The light-emitting element 60 in the above may be referred to as a light-emitting diode (LED), and the light-emitting element 60 is disposed on the side of the charge-coupled element 50 to provide image pickup of the charge-coupled element 50. The required light source. Further, the light-emitting element 60 includes a main light-emitting element 61 and a pair of light-emitting elements 62, which are fixed on both sides of the charge-coupled element 50 along the Y-axis, and the sub-light-emitting element 62 Is disposed on the side of the charge coupled device 50 and extends in the X-axis direction, and the main light-emitting element 61 can provide the first adhesive path 111, the third glue path 113, and the oblique glue path. 115, the light source required for the image is taken. Conversely, the sub-light-emitting element 62 can provide the light source required for the charge-coupled element 50 to take the second glue path 112 and the fourth glue path 114.

According to the above configuration, please refer to FIG. 4 to FIG. 8 to sequentially disclose the operation diagram of the present invention, and explain that when the rubber head 20 is moved to the positioning point 121 via the sliding table 30 and the X-direction sliding rail 40 (eg, As shown in FIG. 4, the glue head 20 can apply the hot melt adhesive 70 to the substrate 10 along the first glue path 11, and then when the glue head 20 sequentially passes through the positioning points 122, 123, 124 (eg Figure 5 The glue head 20 is coated with a hot melt adhesive on the substrate 10 along the second glue path 112, the third glue path 113, and the diagonal glue path 115, when the charge coupled device 50 passes through the slide table 30. When the light is moved to the third glue path 113 (as shown in FIG. 6), the charge coupling element 50 starts to image the third glue path 113 (as shown in FIG. 7), along with the glue head. When the glue is applied along the oblique line coating path 115 and the fourth glue path 114 through the positioning points 124 and 125, the charge coupling element 50 is synchronously imaged behind the glue head 20 to be painted. After the rubber head 20 returns to the positioning point 121 along the fourth glue application path 114 to complete the coating process and away from the substrate 10 (as shown in FIG. 8 ), the charge coupling element 50 also synchronously completes the dynamic extraction of the glue application path 11 . image.

The above embodiments are merely illustrative of preferred embodiments of the invention, but are not to be construed as limiting the scope of the invention. Therefore, the present invention should be based on the content of the claims defined in the scope of the patent application.

Description of the steps of the S1 to S3‧‧‧ examples

Claims (6)

A glue coating detection method comprising: providing a rubber head with X-axis and Y-axis movement capability, coating a glue path according to a substrate, and arranging through a plurality of lines along the Y axis The charge-coupled component follows the movement of the glue head to take an image of the glue path, wherein the glue path comprises a first glue path, a second glue path, a third glue path and a fourth The glue application path surrounds a quadrilateral trajectory, the first glue path and the third glue path are parallel to the Y axis, and the second glue path and the fourth glue path are parallel to the X axis, the charge coupling The component takes an image of the first glue path, the second glue path, the third glue path and the fourth glue path in a moving glue process following the fourth glue path of the glue head along the X-axis. The method for detecting a glue according to claim 1, wherein the charge-coupled element further comprises providing a light source through the at least one light-emitting element. The method for detecting a glue according to claim 1, wherein the third glue path and the fourth glue path further comprise a diagonal glue path, and the charge coupling element follows the glue head along the X axis. The moving process includes taking an image of the diagonally glued path. A glue detecting device comprises: a substrate; a sliding table, providing a Y-direction slideway, the sliding table is slidably disposed on a pair of mutually parallel X-direction slide rails; On the Y-direction slide of the table, the glue head moves along the X-axis and the Y-axis via the slide table, and a glue path is coated on the substrate, the glue path includes a first glue path, a second glue path, a third glue path and a fourth glue path form a quadrilateral trajectory, the first glue path and the third glue path are parallel to the Y axis, the second glue path Parallel to the X-axis direction with the fourth glue path; wherein the slide table is fixed with a plurality of lines spaced along the Y-axis a charge-coupled element of a column, wherein a pitch of the charge-coupled element at the double-ended end of the plurality of charge-coupled elements is equal to a pitch of the second glue path and the fourth glue path, and the charge-coupled element follows the glue The first glue path, the second glue path, the third glue path and the fourth glue path are imaged during the moving glue application of the fourth glue path along the X axis. The glue detecting device of claim 4, further comprising at least one light emitting element disposed on a side of the charge coupled element to provide a light source when the charge coupled element is imaged. The glue detecting device of claim 4, wherein the third glue path and the fourth glue path further comprise a diagonal line coating path, and the charge coupling element follows the glue head along the X axis. The moving process includes taking an image of the diagonally glued path.