A furnace rear AOI defect marking device

Abstract

The utility model discloses a kind of furnace rear AOI defect marking equipment, it includes support plate, auxiliary roller is rotatably connected on support plate upper surface, motor two is fixedly connected with support plate side surface, the output end of motor two is fixedly connected with screw rod, slide is threadedly connected with screw rod side surface, slide is fixedly connected with support by connecting rod, motor one is fixedly connected with support lower surface, the output end of motor one is fixedly connected with conveying roller, support plate upper surface is fixedly connected with arc plate, motor three is fixedly connected with arc plate side surface, the output end of motor three is fixedly connected with gear, gear has two, two gear side surfaces are all engaged with annular plate, two annular plate inner sides are respectively provided with AOI detection device and spray head. By the above components, the distance between two groups of conveying rollers can be adjusted to adapt to the width of different PCBs, and the annular plate can be driven to rotate by the gear, so that the AOI detection device and the spray head can detect and mark the PCB in all directions.

Description

Technical Field

[0001] This utility model relates to the technical field of defect marking equipment, and in particular to a post-furnace AOI defect marking equipment. Background Technology

[0002] In the field of post-reflow AOI inspection, the distance adjustment method between the two sets of conveyor rollers in existing PCB conveying equipment has significant shortcomings. Due to the lack of an effective synchronous transmission mechanism, the movement of the two sets of conveyor rollers is unstable during adjustment, making it difficult to flexibly adapt to PCBs of different widths. This greatly limits the equipment's applicability to inspecting various PCB specifications, causing numerous inconveniences in the inspection process. Furthermore, existing AOI inspection devices also have certain limitations during the inspection process. Their inspection range is limited, making it difficult to perform comprehensive, blind-spot-free inspection of the PCB, easily missing some defects. Moreover, after detecting defects, there is a lack of convenient and efficient immediate marking methods, making it impossible to quickly and clearly mark the defect location, which is inconvenient for subsequent processing steps. In addition, the layout of the inspection device and related components such as the conveyor rollers is not reasonable, often resulting in mutual interference, affecting the normal functioning of each component and reducing overall inspection efficiency. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a post-furnace AOI defect marking device. This device uses a rotating shaft and belt to connect two sets of screws, allowing the two sets of screws to rotate synchronously, thereby driving the sides of the slide plate to move stably. This is used to adjust the distance between the two sets of conveyor rollers, facilitating adaptation to PCBs of different widths. Furthermore, gears simultaneously drive an annular plate equipped with an AOI detection device and a nozzle to rotate around the PCB passing through the annular plate, thus performing comprehensive inspection of the PCB. After detecting defects, ink is sprayed onto the defect area as a mark using the nozzle. The annular plate and the conveyor rollers are staggered to ensure their respective basic functions without affecting each other's functions.

[0004] This utility model also provides a furnace AOI defect marking device as described above, comprising: a support plate, an auxiliary roller rotatably connected to the upper surface of the support plate, a second motor fixedly connected to the side surface of the support plate, a screw fixedly connected to the output end of the second motor, a sliding plate threadedly connected to the side surface of the screw, a bracket fixedly connected to the sliding plate via a connecting rod, a first motor fixedly connected to the lower surface of the bracket, and a conveying roller fixedly connected to the output end of the first motor;

[0005] An arc-shaped plate is fixedly connected to the upper surface of the support plate, and a motor is fixedly connected to the side surface of the arc-shaped plate. Two gears are fixedly connected to the output end of the motor, and both gears have annular plates meshing on their side surfaces. An AOI inspection device and a nozzle are respectively installed on the inner surfaces of the two annular plates. These components allow adjustment of the distance between the two sets of conveyor rollers to accommodate different PCB widths, and the gears drive the annular plates to rotate, enabling the AOI inspection device and nozzle to perform omnidirectional inspection and marking of the PCB.

[0006] According to the present invention, a post-reactor AOI defect marking device includes two sets of conveyor rollers, with multiple rollers in each set. Each set of conveyor rollers has a belt drivingly connected to its side surface. The belts drive the multiple conveyor rollers to rotate synchronously for transporting PCBs.

[0007] According to the present invention, in a post-furnace AOI defect marking device, a rotating shaft is fixedly connected to the end of the screw away from the second motor, and the side surface of the rotating shaft is rotatably connected to a support plate. The rotating shaft and the second belt drive two sets of screws to rotate synchronously.

[0008] According to the present invention, in a post-furnace AOI defect marking device, the rotating shaft is located outside the support plate, and a second belt is connected to the side surface of the rotating shaft. The rotating shaft and the second belt drive two sets of screws to rotate synchronously.

[0009] According to the present invention, in a post-furnace AOI defect marking device, the side surface of the slide plate is slidably connected to the support plate, and the side surface of the connecting rod is slidably connected to the support plate. As the slide plate slides along the interior of the support plate, it drives the support to slide via the connecting rod.

[0010] According to the present invention, in a post-furnace AOI defect marking device, the auxiliary roller is located between two sets of conveyor rollers, and each annular plate is located between two adjacent conveyor rollers. The auxiliary roller supports the PCB from below.

[0011] According to the present invention, in a post-furnace AOI defect marking device, the side surface of the gear is rotatably connected to the arc-shaped plate, and the side surface of the annular plate is rotatably connected to the arc-shaped plate. The gear drives the annular plate to rotate along the arc-shaped plate.

[0012] According to the present invention, a post-furnace AOI defect marking device comprises two symmetrically distributed screws, the side surfaces of which are rotatably connected to a support plate. The two screws drive the slide plate from both sides, stabilizing its movement.

[0013] Beneficial effects:

[0014] The AOI defect marking equipment after the furnace in this technical solution connects two sets of screws via a rotating shaft and belt, allowing the two sets of screws to rotate synchronously and drive the sides of the slide plate to move stably. This is used to adjust the distance between the two sets of conveyor rollers to accommodate PCBs of different widths. At the same time, gears drive an annular plate equipped with AOI detection devices and nozzles to rotate around the PCB that passes through the annular plate, thereby performing all-round inspection of the PCB. After detecting defects, ink is sprayed onto the defect as a mark using the nozzles. The positions of the annular plate and the conveyor rollers are staggered to ensure that their basic functions are not affected by each other. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the overall structure of the furnace AOI defect marking device of this utility model;

[0017] Figure 2 This is a side view of the overall structure of the furnace AOI defect marking device of this utility model;

[0018] Figure 3 This is a diagram of the internal structure of the support plate of the furnace AOI defect marking device of this utility model;

[0019] Figure 4 This is a structural diagram of the annular plate of the furnace post-AOI defect marking device of this utility model;

[0020] Figure 5 This is a cross-sectional view of the AOI defect marking device after furnace according to this utility model.

[0021] Legend:

[0022] 1. Support plate; 2. Bracket; 3. Motor 1; 4. Conveyor roller; 5. Connecting rod; 6. Auxiliary roller; 7. Motor 2; 8. Belt 1; 9. Belt 2; 10. Rotating shaft; 11. Curved plate; 12. Motor 3; 13. Gear; 14. Screw; 15. Slide plate; 16. Annular plate; 17. AOI detection device; 18. Nozzle. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-5This utility model embodiment discloses a furnace AOI defect marking device, which includes: a support plate 1, an auxiliary roller 6 rotatably connected to the upper surface of the support plate 1, the auxiliary roller 6 being located between two sets of conveying rollers 4, a motor 7 fixedly connected to the side surface of the support plate 1, a screw 14 fixedly connected to the output end of the motor 7, two screws 14 being symmetrically distributed, the side surface of the screw 14 being rotatably connected to the support plate 1, a sliding plate 15 being threadedly connected to the side surface of the screw 14, the side surface of the sliding plate 15 being slidably connected to the support plate 1, a bracket 2 being fixedly connected to the sliding plate 15 via a connecting rod 5, the side surface of the connecting rod 5 being slidably connected to the support plate 1, a motor 3 fixedly connected to the lower surface of the bracket 2, and a conveying roller 4 fixedly connected to the output end of the motor 3;

[0025] Specifically, multiple brackets 2 are connected to the slide plate 15 via connecting rods 5, and each bracket 2 is equipped with a conveying roller 4. The conveying roller 4 rotates under the drive of motor 3, and supports the PCB below the auxiliary roller 6, thereby driving the PCB to be transported along the rotation direction of the conveying roller 4. Each side of the slide plate 15 is equipped with a set of screws 14. The screws 14 are driven to rotate by motor 7, which can drive the slide plate 15 to slide along the inside of the support plate 1, and are used to adjust the distance between the two sets of symmetrical conveying rollers 4 to adapt to PCBs of different widths.

[0026] An arc-shaped plate 11 is fixedly connected to the upper surface of the support plate 1. A motor 3 12 is fixedly connected to the side surface of the arc-shaped plate 11. A gear 13 is fixedly connected to the output end of the motor 3 12. The side surface of the gear 13 is rotatably connected to the arc-shaped plate 11. There are two gears 13. The side surfaces of the two gears 13 are meshed with annular plates 16. The side surfaces of the annular plates 16 are rotatably connected to the arc-shaped plate 11. Each annular plate 16 is located between two adjacent conveying rollers 4. An AOI detection device 17 and a nozzle 18 are respectively provided on the inner surfaces of the two annular plates 16.

[0027] Specifically, two annular plates 16 are provided on the inner side of the arc plate 11, and AOI detection devices 17 and printheads 18 are respectively installed on the inner sides of the two annular plates 16. An ink cartridge is also provided at the connection between the printhead 18 and the annular plate 16. Ink can be added to the ink cartridge to supply ink for the printhead 18. The surface of the annular plate 16 is also provided with teeth that mesh with gears 13. When the motor 12 drives the two sets of gears 13 to rotate synchronously, the gears 13 can drive the annular plate 16 to rotate, so that the AOI detection device 17 and the printhead 18 on the annular plate 16 can detect the PCB surrounding the annular plate 16. After the AOI detection device 17 detects a defect, it transmits the signal to the external control device, and the control device controls the printhead 18 to spray ink at the defect as a mark. The annular plate 16 is provided with a groove, so that the slider inside the arc plate 11 can extend into the groove to support the annular plate 16, so that the annular plate 16 can rotate along the inner wall of the arc plate 11.

[0028] There are two sets of conveyor rollers 4, and multiple rollers in each set. The side surfaces of multiple conveyor rollers 4 are connected to belt 8. The end of screw 14 away from motor 7 is fixedly connected to shaft 10. The side surface of shaft 10 is rotatably connected to support plate 1. Shaft 10 is located outside support plate 1. The side surface of shaft 10 is connected to belt 9.

[0029] Specifically, each conveyor roller 4 is equipped with a set of rollers and connected by a belt 8. When the motor 3 drives one of the conveyor rollers 4 to rotate, the belt 8 will drive all the conveyor rollers 4 to rotate synchronously, making the transport of the conveyor rollers 4 more stable. At the same time, the screw 14 is also equipped with a rotating shaft 10, which is also connected by a belt 9. When one set of screws 14 rotates, it will drive the other set of screws 14 to rotate through the belt 9, so that the two ends of the slide plate 15 can move synchronously and make the movement position of the conveyor rollers 4 accurate.

[0030] Working principle: Based on the required PCB width, motor 7 drives screw 14 to rotate, causing slide plate 15 to move via connecting rod 5, which in turn moves bracket 2 and conveyor rollers 4. This adjusts the distance between the two sets of conveyor rollers 4 to fit the PCB width. The PCB is then placed between the two sets of conveyor rollers 4 and on auxiliary roller 6. Motor 3 and belt 8 drive the same set of conveyor rollers 4 to rotate for PCB transport. Simultaneously, motor 3 12 and gear 13 drive the two sets of annular plates 16 to rotate, causing the AOI inspection device 17 and nozzle 18 on the annular plate 16 to rotate with it. When the PCB passes the annular plate 16, the AOI inspection device 17 rotates around the PCB and performs inspection. When a defect is detected, the AOI inspection device 17 transmits a signal to an external control device, which then controls the nozzle 18 to spray ink at the defect as a mark.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A furnace AOI defect marking device, characterized in that, include: A support plate (1) is rotatably connected to an auxiliary roller (6) on its upper surface. A motor (7) is fixedly connected to the side surface of the support plate (1). A screw (14) is fixedly connected to the output end of the motor (7). A slide plate (15) is threadedly connected to the side surface of the screw (14). A bracket (2) is fixedly connected to the slide plate (15) via a connecting rod (5). A motor (3) is fixedly connected to the lower surface of the bracket (2). A conveying roller (4) is fixedly connected to the output end of the motor (3). An arc plate (11) is fixedly connected to the upper surface of the support plate (1), and a motor (12) is fixedly connected to the side surface of the arc plate (11). A gear (13) is fixedly connected to the output end of the motor (12). There are two gears (13), and an annular plate (16) meshes with the side surfaces of the two gears (13). An AOI detection device (17) and a nozzle (18) are respectively provided on the inner surfaces of the two annular plates (16).

2. The furnace AOI defect marking device according to claim 1, characterized in that, There are two sets of conveying rollers (4) and multiple rollers in each set. The side surfaces of the multiple conveying rollers (4) are connected to belts (8).

3. The furnace AOI defect marking device according to claim 1, characterized in that, The screw (14) is fixedly connected to a rotating shaft (10) at the end away from the motor (7), and the side surface of the rotating shaft (10) is rotatably connected to the support plate (1).

4. The furnace AOI defect marking device according to claim 3, characterized in that, The rotating shaft (10) is located outside the support plate (1), and the side surface of the rotating shaft (10) is connected to a belt (9).

5. A furnace AOI defect marking device according to claim 1, characterized in that, The side surface of the slide plate (15) is slidably connected to the support plate (1), and the side surface of the connecting rod (5) is slidably connected to the support plate (1).

6. A furnace AOI defect marking device according to claim 1, characterized in that, The auxiliary roller (6) is located between the two sets of conveying rollers (4), and each of the annular plates (16) is located between two adjacent conveying rollers (4).

7. A furnace AOI defect marking device according to claim 1, characterized in that, The side surface of the gear (13) is rotatably connected to the arc plate (11), and the side surface of the annular plate (16) is rotatably connected to the arc plate (11).

8. A furnace AOI defect marking device according to claim 1, characterized in that, There are two screws (14) that are symmetrically distributed, and the side surface of the screws (14) is rotatably connected to the support plate (1).

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