AB glue pouring curing bubble detection device

Abstract

The invention discloses an AB glue pouring curing bubble detection device, and relates to the technical field of AB glue pouring, the AB glue pouring curing bubble detection device comprises a fixed bottom plate, an internal tooth belt capable of stably conveying a simulation glue pouring box is arranged above the fixed bottom plate, and a fixed mounting bracket fixedly connected with a mixing and stirring box is mounted at the upper end of the fixed bottom plate; a temperature control box is arranged at the lower end of the mixing and stirring box, a dispensing valve is arranged at the lower end of the temperature control box, and a bubble detector is mounted on the lower side of the right end of the fixed mounting bracket. A first stirring rod and a second stirring rod are arranged on the inner side of the mixing and stirring box. The problems that a conventional detection device usually only performs detection from a single form of glue and is easily limited by transparency and viscosity of the glue, the glue cannot be extruded in a controlled manner, bubbles in the glue are easily interfered by air, and meanwhile, after the glue is mixed and extruded, the bubbles in the glue cannot be easily separated from the transparency and the viscosity of the glue. And a glue filling state is difficult to simulate and bubbles are difficult to detect again.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of AB glue pouring, and particularly relates to an AB glue pouring solidification bubble detection device. BACKGROUND

[0002] AB glue pouring (two-component glue solidification) is widely applied to the fields of electronic packaging, LED lighting, automobile electronics, photovoltaic modules and the like, and the core thereof is to realize solidification by mixing A component (such as epoxy resin) and B component (curing agent), however, in the mixing, pouring and solidification process, bubbles are easily mixed into the glue, and therefore a bubble detection device needs to be used.

[0003] Compared with the existing bubble detection device, the conventional detection device is prone to the problems of being limited by the transparency and viscosity of the glue and being unable to controllably extrude the glue, and the bubbles in the glue are easily disturbed by air, and meanwhile, after the glue is mixed and extruded, it is difficult to simulate the glue pouring state and perform re-bubble detection. SUMMARY

[0004] The application aims to provide an AB glue pouring solidification bubble detection device, and solve the following technical problems: the conventional detection device is prone to the problems of being limited by the transparency and viscosity of the glue and being unable to controllably extrude the glue, and the bubbles in the glue are easily disturbed by air, and meanwhile, after the glue is mixed and extruded, it is difficult to simulate the glue pouring state and perform re-bubble detection.

[0005] The application can be realized by the following technical scheme. An AB glue pouring solidification bubble detection device comprises a fixed bottom plate, an inner tooth belt capable of stably conveying a simulated glue pouring box is arranged above the fixed bottom plate, a fixed mounting support fixedly connected with a mixing and stirring box is arranged at the upper end of the fixed bottom plate, a temperature control box is arranged at the lower end of the mixing and stirring box, a glue dispensing valve is arranged at the lower end of the temperature control box, and a bubble detector is arranged at the lower side of the right end of the fixed mounting support. A first stirring rod and a second stirring rod are arranged on the inner side of the mixing and stirring box and used for mixing and stirring the glue, a sealing top cover capable of lifting and moving in the fixed mounting support is arranged above the mixing and stirring box, a movable ring plate connected with the fixed mounting support is arranged on the outer side of the sealing top cover, and a supporting vertical plate is fixedly arranged at the lower end of the movable ring plate and used for mounting an imaging plate and an industrial camera.

[0006] As a further scheme of the application, gear rollers capable of meshing and connecting are equidistantly arranged on the inner side of the inner tooth belt, and a middle supporting plate fixedly connected with a lateral mounting plate is arranged at the middle part of the inner side of the inner tooth belt.

[0007] As a further scheme of the present application: the simulation glue filling box is arranged equidistantly outside the inner toothed belt, a glue filling cavity is formed in the middle of the simulation glue filling box for simulating glue filling operation, and a temperature control plate is arranged inside the simulation glue filling box.

[0008] As a further scheme of the present application: the outer side of the sealing top cover is threadedly connected with a reciprocating screw rod located in the fixed mounting bracket, and a ceramic sealing ring is bonded to the lower end edge of the sealing top cover and is clamped to the mixing and stirring box.

[0009] As a further scheme of the present application: a vacuum pump is fixedly mounted to the upper end of the sealing top cover for vacuum suction in the mixing and stirring box.

[0010] As a further scheme of the present application: a driving connection gear plate is mounted to the middle of the sealing top cover, a driven connection gear plate is arranged outside the driving connection gear plate, and a linkage gear plate connected with the movable ring plate is arranged outside the driven connection gear plate.

[0011] As a further scheme of the present application: the driving connection gear plate and the linkage gear plate are connected with the driven connection gear plate in a meshing manner, and the driving connection gear plate is fixedly connected with the first stirring rod and the driven connection gear plate is fixedly connected with the second stirring rod.

[0012] As a further scheme of the present application: the inner end of the movable ring plate is provided with teeth, and the movable ring plate is connected with the linkage gear plate in a meshing manner.

[0013] As a further scheme of the present application: the outer end of the movable ring plate is fixedly mounted with an annular convex plate which is slidingly connected in the fixed mounting bracket through a limiting groove body for circumferential rotation of the supporting vertical plate.

[0014] As a further scheme of the present application: the imaging plate is arranged in a ring shape inside the supporting vertical plate, and the position of the imaging plate is arranged in a vertical and corresponding manner with the industrial camera.

[0015] The present application has the following advantages: 1. By cooperation of the imaging plate and the industrial camera, the flowability and bubble of AB glue in the mixing and stirring process in the mixing and stirring box can be detected, and after solidification, the bubble detection is carried out by cooperation of the bubble detector, and by using the double detection mode, the bubble state of the AB glue in different states can be improved. In addition, the upper end of the sealing top cover is provided with a vacuum pump, air suction in the mixing and stirring box can be carried out, the mixing and stirring box is in a vacuum state, so as to reduce the solidification time of the AB glue, thereby reducing the generation of bubbles and facilitating better monitoring. 2. Through the threaded connection between the sealing top cover and the reciprocating screw, when the reciprocating screw is rotated to lower the sealing top cover, the sealing top cover can be docked and engaged with the mixing box through the ceramic sealing ring. Conversely, when the sealing top cover is lifted, the mixing box can be opened, which is convenient for cleaning the mixing box later and avoids glue residue that affects use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the connection between the fixed base plate and the fixed mounting bracket of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the connection between the fixed mounting bracket and the fixed connecting riser of the present invention; Figure 3 This is a schematic diagram of the overall exploded structure of the gear roller connected to the internal toothed belt of the present invention; Figure 4 This is a schematic diagram of the overall structure of the connection between the simulated glue filling box and the glue filling cavity of the present invention; Figure 5 This is a schematic diagram of the overall structure of the connection between the fixed mounting bracket and the limiting groove body of the present invention; Figure 6 This is a schematic diagram of the overall exploded structure of the connection between the sealing top cover and the ceramic sealing ring of the present invention; Figure 7 This is a schematic diagram of the overall cross-sectional structure of the connection between the fixed mounting bracket and the annular convex plate of the present invention; Figure 8 It is a schematic diagram of the overall exploded structure of the active connecting gear plate and the driven connecting gear plate of the present invention; Figure 9 It is a schematic diagram of the overall structure of the connection between the supporting vertical plate and the imaging plate of the present invention.

[0018] In the figure: 1. Fixed bottom plate; 101. Lateral mounting plate; 102. Middle bearing plate; 103. First servo motor; 104. Gear roller; 105. Internal toothed belt; 106. Simulated glue pouring box; 1061. Glue pouring cavity; 1062. Temperature control board; 2. Fixed mounting bracket; 201. Fixed connecting riser; 202. Limiting groove; 203. Second servo motor; 204. Reciprocating screw; 205. Sealing top cover; 2051. Third servo motor; 20 52. Active connecting gear plate; 20521. First stirring rod; 2053. Driven connecting gear plate; 20531. Second stirring rod; 2054. Linkage gear plate; 20541. Movable ring plate; 20542. Annular convex plate; 20543. Support vertical plate; 20544. Imaging plate; 20545. Industrial camera; 206. Ceramic sealing ring; 207. Vacuum pump; 3. Mixing and stirring box; 4. Temperature control box; 5. Dispensing valve; 6. Bubble detector. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1-9 As shown, the present invention is a device for detecting bubbles during AB glue pouring and curing.

[0021] Example 1 See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present invention provides a technical solution: a fixed base plate 1, an internal toothed belt 105 is provided above the fixed base plate 1 for stably conveying a simulated glue filling box 106, a fixed mounting bracket 2 fixedly connected to a mixing and stirring box 3 is installed at the upper end of the fixed base plate 1, a temperature control box 4 is provided at the lower end of the mixing and stirring box 3, a glue dispensing valve 5 is provided at the lower end of the temperature control box 4, and a bubble detector 6 is installed on the lower side of the right end of the fixed mounting bracket 2; Furthermore, gear rollers 104 are evenly spaced and meshed with each other on the inner side of the inner toothed belt 105 , and a center support plate 102 fixedly connected to the lateral mounting plate 101 is provided in the middle of the inner side of the inner toothed belt 105 .

[0022] Furthermore, the simulated glue pouring boxes 106 are evenly spaced outside the inner toothed belt 105 , a glue pouring cavity 1061 is opened in the middle of the simulated glue pouring box 106 for simulating glue pouring operation, and a temperature control plate 1062 is set inside the simulated glue pouring box 106 .

[0023] Specifically, first, after the fixed base plate 1 is stably placed in the designated position, the AB glue is poured into the mixing and stirring box 3, and then the ceramic sealing ring 206 bonded to the lower edge of the sealing top cover 205 is connected to the mixing and stirring box 3, and then the vacuum pump 207 is turned on to suck the air in the mixing and stirring box 3, so that the mixing and stirring box 3 is in a vacuum state to prevent gas circulation. At this time, in the process of mixing and stirring the AB glue using the first stirring rod 20521 and the second stirring rod 20531, the AB glue in the stirring process can be detected for bubbles with the cooperation of the imaging plate 20544 and the industrial camera 20545. Since the lower side of the interior of the mixing and stirring box 3 is inclined, it is convenient for the AB glue to be discharged in the subsequent material. Finally, the AB glue is discharged quantitatively from the dispensing valve 5 through the temperature control box 4, so that the AB glue enters the simulated glue filling box 106 for simulated glue filling operation, and finally the final solidification bubble detection is performed on the bubble detector 6 installed at the lower right end of the connecting vertical plate 201.

[0024] The mixing box 3 is made of tempered glass, which can improve light transmittance and facilitate shooting by the industrial camera 20545.

[0025] Among them, the vacuum suction operation in the mixing and stirring box 3 by the vacuum pump 207 can prevent the AB glue from being drawn into air during mixing, which can easily form pores after curing, resulting in poor heat dissipation of electronic packaging and decreased strength of structural parts. Under vacuum conditions, 99% of bubbles can be eliminated. In actual measurements, the volume proportion of bubbles is reduced from 0.5% to <0.01%, and the oxygen concentration is reduced in a vacuum environment, slowing down the curing reaction rate of AB glue; the model of the vacuum pump 207 is: XD-020.

[0026] Among them, the model of temperature control box 4 is: SHIMADEN FP93, and its temperature control range is -200℃-500℃. It can respond quickly and is suitable for high-viscosity glue, thereby ensuring that AB glue maintains a constant temperature during storage, transportation or extrusion, ensuring process consistency.

[0027] Among them, the model of dispensing valve 5 is: Shengxingrui SD-A820V, which is suitable for AB glue dispensing. Its minimum discharge volume is 0.001ml. It is made of corrosion-resistant material and has a clean glue cut-off without residual glue.

[0028] Among them, the gear roller 104 and the inner toothed belt 105 are connected in a meshing manner, and the simulated glue filling box 106 is equidistantly distributed on the outer surface of the inner toothed belt 105. When the first servo motor 103 installed at the front end of the lateral mounting plate 101 is opened to rotate the gear roller 104, it can drive the inner toothed belt 105 to perform stable synchronous movement, so as to facilitate the overall transportation of the simulated glue filling box 106 to the right. A middle bearing plate 102 fixedly connected to the lateral mounting plate 101 is provided at the inner middle part of the inner toothed belt 105, which can make the inner toothed belt 105 more stable as a whole to support the middle load-bearing effect of the inner toothed belt 105. When the dispensing valve 5 extrude AB glue quantitatively, it can simulate the glue filling state under the action of the glue filling cavity 1061, and can perform temperature control and adjustment through the temperature control plate 1062 to promote the curing state of the AB glue. Finally, the bubble detector 6 can be used to perform bubble detection again.

[0029] Among them, the bubble detector 6 can be an ultrasonic detector, an optical detector, a capacitive detector or a multimodal fusion detector; the ultrasonic detector identifies bubbles through the difference in acoustic impedance at the gas-liquid interface and has high sensitivity; the optical detector uses a camera combined with image analysis to monitor bubbles, impurities and coating uniformity in AB glue in real time; the capacitive detector uses the difference in dielectric constant between gas and liquid and is suitable for static or low-speed flowing colloids; the multimodal fusion detector combines ultrasonic and optical technologies to improve detection accuracy under complex working conditions.

[0030] Example 2 See also Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The present invention provides a technical solution: a first stirring rod 20521 and a second stirring rod 20531 are provided on the inner side of the mixing and stirring box 3 for mixing and stirring the glue, and a sealing top cover 205 is provided above the mixing and stirring box 3 and moves up and down in the fixed mounting bracket 2; Furthermore, the outer side of the sealing top cover 205 is threadedly connected to a reciprocating screw 204 located in the fixed mounting bracket 2, and the lower end edge of the sealing top cover 205 is bonded to a ceramic sealing ring 206 that is engaged with the mixing box 3. Under the action of the ceramic sealing ring 206, the connection between (205) and (3) can be sealed to prevent air from entering.

[0031] Furthermore, a vacuum pump 207 is fixedly mounted on the upper end of the sealing top cover 205 for performing vacuum suction on the mixing box 3 , thereby placing the mixing box 3 containing the AB glue in a vacuum state.

[0032] Furthermore, an active connecting gear plate 2052 is installed in the middle of the sealing top cover 205, and a driven connecting gear plate 2053 is provided on the outer side of the active connecting gear plate 2052. A linkage gear plate 2054 connected to the movable ring plate 20541 is provided on the outer side of the driven connecting gear plate 2053. When the third servo motor 2051 is turned on to rotate the active connecting gear plate 2052, the driven connecting gear plate 2053 can be driven to rotate synchronously, thereby utilizing the driven connecting gear plate 2053 to drive the meshing linkage gear plate 2054 to rotate synchronously.

[0033] Furthermore, the active connecting gear plate 2052 and the linkage gear plate 2054 are connected to the driven connecting gear plate 2053 in a meshing manner, and the active connecting gear plate 2052 and the first stirring rod 20521 and the driven connecting gear plate 2053 and the second stirring rod 20531 are fixedly connected. When the active connecting gear plate 2052 and the driven connecting gear plate 2053 rotate, the first stirring rod 20521 and the second stirring rod 20531 can be driven to rotate, so as to facilitate shear stirring of the AB glue in the mixing box 3.

[0034] Specifically, in combination with the embodiment 1, when the second servo motor 203 is turned on to rotate the reciprocating screw rod 204, it will drive the sealing top cover 205 threadedly connected to the reciprocating screw rod 204 to perform a stable lifting movement in the fixed mounting bracket 2, so as to make the sealing top cover 205 and the mixing and stirring box 3 engage in an automatic lifting state. In the feeding or subsequent cleaning process, the lifting and lowering operation of the sealing top cover 205 can avoid manual lifting and placing, reducing labor. After the vacuum treatment of the mixing and stirring box 3 is performed by the vacuum pump 207, the first The three servo motors 2051 rotate the active connecting gear plate 2052. Since the driven connecting gear plate 2053 is divided into four equal parts about the center point of the active connecting gear plate 2052, when the active connecting gear plate 2052 rotates, it can drive the meshing driven connecting gear plate 2053 to rotate synchronously, thereby utilizing the first stirring rod 20521 fixedly connected to the lower end of the active connecting gear plate 2052 and the second stirring rod 20531 fixedly connected to the lower end of the driven connecting gear plate 2053 to rotate synchronously, thereby mixing and stirring the AB glue.

[0035] Among them, the diameter of the driven connecting gear plate 2053 is half of the diameter of the active connecting gear plate 2052. It can drive the driven connecting gear plate 2053 to rotate rapidly while the active connecting gear plate 2052 rotates, so as to promote the rotation speed of the second stirring rod 20531, so as to utilize the first stirring rod 20521 to perform transverse shear rotation on the AB glue, and utilize the second stirring rod 20531 to quickly mix and stir the AB glue to prevent the AB glue from solidifying during the mixing and stirring process.

[0036] Example 3 See also Figure 2 、 Figure 7 、 Figure 8 and Figure 9 The present invention provides a technical solution: a movable ring plate 20541 connected to the fixed mounting bracket 2 is provided on the outer side of the sealing top cover 205, and a supporting vertical plate 20543 is fixedly installed at the lower end of the movable ring plate 20541 for mounting an imaging plate 20544 and an industrial camera 20545; Furthermore, teeth are provided on the inner end of the movable ring plate 20541 , and the movable ring plate 20541 is connected to the linkage gear plate 2054 in a meshing manner, which can drive the movable ring plate 20541 to rotate when the linkage gear plate 2054 rotates.

[0037] Furthermore, the outer end of the movable ring plate 20541 is fixedly installed with an annular protrusion 20542 that is slidably connected in the fixed mounting bracket 2 through the limiting groove body 202, which is used to support the vertical plate 20543 for circular rotation, and can make the movable ring plate 20541 more stable when rotating under the action of the limiting groove body 202.

[0038] Furthermore, the imaging plate 20544 is arranged in a ring shape on the inner side of the supporting vertical plate 20543, and the position of the imaging plate 20544 is arranged in a vertically corresponding manner to the industrial camera 20545, which can make the imaging more complete.

[0039] Specifically, in combination with Example 1 and Example 2, the inner end of the movable ring plate 20541 is provided with teeth, and the movable ring plate 20541 is connected to the linkage gear plate 2054 in a meshing manner. When the driven connecting gear plate 2053 rotates, it can drive the linkage gear plate 2054 to rotate synchronously in the sealing top cover 205, so as to prompt the movable ring plate 20541 to slide in a fitting manner in the limiting groove body 202 opened at the inner end of the fixed mounting bracket 2 through the annular protrusion 20542 fixedly connected to the outer end, so that the movable ring plate 20541 can be stably mounted as a whole. The movable ring plate 20541 is divided into three equal parts and fixedly mounted with a supporting vertical plate 20543, and the inner ends of the supporting vertical plate 20543 are respectively provided with an imaging plate 20544 and an industrial camera 20545. When the first stirring rod 20521 and the second stirring rod 20531 are mixing the AB glue, they can drive the supporting vertical plate 20543 to rotate synchronously, so that the industrial camera 20545 can be used to photograph the AB glue in the mixing box 3, and the image is engraved on the imaging plate 20544, so that the image can be used for bubble detection.

[0040] Among them, the imaging board 20544 is fixedly connected to the two supporting vertical plates 20543, and the imaging board 20544 is arranged in an arc shape, which can image the shooting of the industrial camera 20545 in a larger area. Combined with the vertical setting between the industrial camera 20545 and the imaging board 20544, the image can be concentrated during the imaging process.

[0041] Among them, the model of industrial camera 20545 is: Teledyne DALSA Piranha4, which is suitable for high-speed glue filling production lines and can detect micro bubbles below 0.05mm.

[0042] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An AB glue pouring and curing bubble detection device, characterized in that: The invention comprises a fixed base plate (1), an inner toothed belt (105) for stably conveying a simulated glue filling box (106) is provided above the fixed base plate (1), a fixed mounting bracket (2) fixedly connected to a mixing and stirring box (3) is installed at the upper end of the fixed base plate (1), a temperature control box (4) is provided at the lower end of the mixing and stirring box (3), a glue dispensing valve (5) is provided at the lower end of the temperature control box (4), and a bubble detector (6) is installed at the lower side of the right end of the fixed mounting bracket (2); A first stirring rod (20521) and a second stirring rod (20531) are provided on the inner side of the mixing and stirring box (3) for mixing and stirring the glue. A sealing top cover (205) is provided above the mixing and stirring box (3) and is movable and movable in the fixed mounting bracket (2). A movable ring plate (20541) connected to the fixed mounting bracket (2) is provided on the outer side of the sealing top cover (2055). A supporting vertical plate (20543) is fixedly installed at the lower end of the movable ring plate (20541) for mounting an imaging plate (20544) and an industrial camera (20545).

2. The AB glue pouring and curing bubble detection device according to claim 1 is characterized in that: Gear rollers (104) are evenly spaced and meshed with each other and installed on the inner side of the inner toothed belt (105). A center support plate (102) fixedly connected to the lateral mounting plate (101) is provided in the middle of the inner side of the inner toothed belt (105).

3. The AB glue pouring and curing bubble detection device according to claim 1 is characterized in that: The simulated glue pouring boxes (106) are equidistantly arranged on the outside of the inner toothed belt (105), and a glue pouring cavity (1061) is provided in the middle of the simulated glue pouring box (106) for simulating glue pouring operation, and a temperature control plate (1062) is provided on the inside of the simulated glue pouring box (106).

4. The AB glue pouring and curing bubble detection device according to claim 1 is characterized in that: The outer side of the sealing top cover (205) is threadedly connected to a reciprocating screw (204) located in the fixed mounting bracket (2), and the lower end edge of the sealing top cover (205) is bonded to a ceramic sealing ring (206) that is snap-connected to the mixing box (3).

5. The AB glue pouring and curing bubble detection device according to claim 4 is characterized in that: A vacuum pump (207) is fixedly mounted on the upper end of the sealing top cover (205) for performing vacuum suction on the mixing and stirring box (3).

6. The AB glue pouring and curing bubble detection device according to claim 4 is characterized in that: An active connecting gear plate (2052) is installed in the middle of the sealing top cover (205), a driven connecting gear plate (2053) is provided on the outer side of the active connecting gear plate (2052), and a linkage gear plate (2054) connected to the movable ring plate (20541) is provided on the outer side of the driven connecting gear plate (2053).

7. The AB glue pouring and curing bubble detection device according to claim 6 is characterized in that: The active connecting gear plate (2052) and the linkage gear plate (2054) are both connected to the driven connecting gear plate (2053) in a meshing manner, and the active connecting gear plate (2052) and the first stirring rod (20521) as well as the driven connecting gear plate (2053) and the second stirring rod (20531) are both fixedly connected.

8. The AB glue pouring and curing bubble detection device according to claim 6, characterized in that: The inner end of the movable ring plate (20541) is provided with teeth, and the movable ring plate (20541) is connected to the linkage gear plate (2054) in a meshing manner.

9. The AB glue pouring and curing bubble detection device according to claim 8, characterized in that: The outer end of the movable ring plate (20541) is fixedly mounted with an annular protruding plate (20542) which is slidably connected in the fixed mounting bracket (2) via a limiting groove (202) and is used to perform circular rotational motion on the supporting vertical plate (20543).

10. The AB glue pouring and curing bubble detection device according to claim 9, characterized in that: The imaging plate (20544) is arranged in a ring shape on the inner side of the supporting vertical plate (20543), and the imaging plate (20544) is arranged in a vertically corresponding manner to the industrial camera (20545).

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