A disc-type bolt applicator capable of sorting and feeding bolts

Abstract

This utility model relates to a bolt gluing disc machine capable of sorting and unloading bolts. It includes a main body and a PLC controller. The main body has a vibrating disc, a glue applicator, a detection mechanism, a mesh belt dryer, a defective product trough, and a unloading mechanism on its side. A magnetic conveyor belt is mounted on the main body. The detection mechanism has a vision detector aligned with the magnetic conveyor belt. The unloading mechanism includes a first cylinder and a second cylinder, both connected to telescopic rods for coordinated driving. The mesh belt dryer's mesh belt and defective product trough are respectively positioned below the different telescopic rods. The PLC controller uses vision software to detect whether bolts in the image have been missed or poorly coated. The first cylinder drives the connected telescopic rods to push good bolts off the magnetic conveyor belt into the mesh belt dryer for drying. The second cylinder drives the telescopic rods to push defective bolts into the defective product trough, saving manpower required for separating defective products.

Description

Technical Field

[0001] This invention relates to the field of adhesive coating disc machines, and more particularly to an adhesive coating disc machine for bolts that can classify and feed materials. Background Technology

[0002] Anti-loosening bolts are treated with adhesive on their threads after manufacturing to improve their anti-loosening and vibration resistance. Bolt adhesive application disc machines typically feature a horizontally rotating disc with a magnetic conveyor belt on its circumference. A vibratory feeder neatly transports unprocessed bolts to the magnetic conveyor belt, where the bolt heads are magnetically attracted, causing the screw section to extend outwards. The rotating disc drives the screws through the adhesive applicator, which then applies the adhesive. A dryer dries the adhesive. However, during the process of the bolt heads being magnetically attracted to the conveyor belt, the bolts can easily slip, causing the attraction position to shift. This results in some bolts being missed or poorly coated with adhesive during application. These defective bolts are dried together with the good ones and then stacked together, requiring manual removal of the defective bolts, wasting manpower and resources. Therefore, designing a bolt adhesive application disc machine that can identify defective bolts and separate them from the good bolts for separate feeding has become an urgent technical problem to solve. Summary of the Invention

[0003] To solve the above problems, this utility model provides a bolt gluing disc machine that can classify and feed materials.

[0004] The technical solution of this utility model is a bolt gluing disc machine capable of sorting and unloading bolts. It includes a disc machine body and a PLC controller. The side of the disc machine body is equipped with a vibrating disc, a glue applicator, a detection mechanism, a mesh belt dryer, a defective product trough, and a unloading mechanism. A magnetic conveyor belt is mounted on the disc machine body. The detection mechanism is equipped with a visual detector aligned with the magnetic conveyor belt. The unloading mechanism includes a first cylinder and a second cylinder, both connected to telescopic rods for coordinated driving. The telescopic rods are positioned above the magnetically attracted bolt heads on the magnetic conveyor belt. The mesh belt of the mesh belt dryer and the defective product trough are respectively positioned below the different telescopic rods. The PLC controller is electrically connected to the disc machine body, the detection mechanism, and the unloading mechanism.

[0005] With the above structure, the PLC controller is electrically connected to the main body of the disc machine, the detection mechanism, and the unloading mechanism for control. The vibratory feeder is activated to neatly transport the unprocessed bolts onto the main body of the disc machine. The main body of the disc machine uses the magnetic force of the magnetic conveyor belt to attract the bolt heads, causing the screw to extend outwards. The main body of the disc machine rotates horizontally, driving the screw through the glue applicator to apply adhesive. Afterwards, the bolts pass through the detection mechanism, where a vision detector captures an image of the bolt and sends it to the PLC controller. The PLC controller uses vision software to detect whether the bolts in the image have any missed areas or poor adhesive application. When the bolts are properly coated, the PLC controller, based on the set rotation position of the main body of the disc machine, sends an electrical signal after the detected bolts move to the mesh belt dryer. The system starts the first cylinder, which drives the connected telescopic rod to extend and retract once. The bottom of the telescopic rod descends, pushing the bolt away from the main body of the disc machine. The bolt falls onto the mesh belt below and is sent into the mesh belt dryer for glue drying. Afterward, it is sent out of the mesh belt dryer as a good product. When the bolt has poor glue application, the PLC controller sends an electrical signal to start the second cylinder after the detected bolt moves to the defective product tank. The second cylinder drives the connected telescopic rod to extend and retract once, pushing the bolt away from the main body of the disc machine and causing it to fall into the defective product tank below. This separates the bolt from the good bolts, avoiding the wasted effort of the mesh belt dryer in drying defective products, saving the manpower required for separating defective products, and effectively separating and concentrating defective products for re-coating.

[0006] As a further improvement of this utility model, the main body of the disc machine includes a base and a horizontally arranged turntable. The base is equipped with a rotary motor that drives the turntable via a shaft. A magnetic conveyor belt is arranged on the side of the turntable. The vibrating plate is provided with a discharge channel extending to the magnetic conveyor belt. The mesh belt dryer is provided with a good product trough, which is located below the end of the mesh belt of the mesh belt dryer. The vibrating plate, glue applicator, detection mechanism, mesh belt dryer and defective product trough are arranged in sequence along the rotation direction of the turntable. The first cylinder and the second cylinder are both mounted on the base.

[0007] With the above structure, a rotary motor is installed on the base, and the rotary motor shaft is connected to the turntable to drive horizontal rotation. The vibration of the vibrating plate arranges the internal bolts neatly, and then they are sent from the discharge channel to the magnetic conveyor belt on the side of the turntable. The magnetic conveyor belt uses magnetic force to attract the head of the bolt for transportation. By setting a good product trough below the end of the mesh belt dryer, the good bolts sent out of the mesh belt dryer fall into the good product trough for collection, which facilitates centralized transportation to the next stage.

[0008] As a further improvement of this utility model, the detection mechanism is also equipped with a photoelectric sensor for aligning with the magnetic conveyor belt. The photoelectric sensor and the visual detector are arranged sequentially along the rotation direction of the turntable, and a time delay interval is provided between the photoelectric sensor and the visual detector.

[0009] With the above structure, the photoelectric sensor on the detection mechanism first detects the magnetic conveyor belt. When it detects a bolt magnetically attracted to the magnetic conveyor belt, it sends an electrical signal to the PLC controller. The PLC controller then activates the vision detector to check the adhesive application on the bolts on the magnetic conveyor belt. This avoids meaningless detection when there are no bolts on the magnetic conveyor belt and prevents misjudgment as insufficient adhesive application, thus avoiding the activation of the second cylinder. By setting a time delay interval between the photoelectric sensor and the vision detector, the time it takes for the bolt to travel from the location of the photoelectric sensor to the location of the vision detector is extended. This gives the PLC controller sufficient time to activate the vision detector, preventing the bolt from having already passed in front of it during the activation process.

[0010] As a further improvement of this utility model, the detection mechanism is provided with a correction mechanism, which includes a support frame and a pair of correction plates. The support frame is connected to the base, and the correction plates are arranged vertically on the support frame. The position of the correction plates corresponds to the position of the bolt heads on the main body of the disc machine. The opposite ends of the correction plates are provided with arc-shaped surfaces, and there is a passage interval between the correction plates. The position of the passage interval matches the visual detector.

[0011] With the above structure, the bolts can pass through the gap between the correction plates. When the position of the bolt is slightly offset due to the vibratory feeder, its own weight, or the application of adhesive, the head of the bolt will contact the arc-shaped surface. Then, guided by the arc-shaped surface, it will move to the gap between the correction plates, adjusting the position of the bolt to match the vision detector and avoiding interference with the vision detection.

[0012] As a further improvement of this utility model, the support frame is provided with a vertical slide groove, and a lead screw motor is connected to the end of the slide groove. The correction plates are all connected with lifting seats, and the lifting seats are slidably connected to the slide groove. The lead screw motor is connected to a drive lead screw for linkage. The two ends of the drive lead screw are provided with threads in opposite directions. The drive lead screw is threadedly connected to the lifting seats, and the lifting seats are symmetrically arranged at both ends of the drive lead screw.

[0013] With the above structure, a lead screw motor is connected to a drive lead screw for linkage. The two ends of the drive lead screw have threads in opposite directions. The drive lead screw is threadedly connected to the lifting seat, and the lifting seat is symmetrically arranged at both ends of the drive lead screw. After the PLC controller is used to start the lead screw motor, the lead screw motor causes the drive lead screw to rotate. The drive lead screw engages with the threaded lifting seat, driving the lifting seat to move along the slide groove, synchronously moving towards the center of the slide groove or away from both ends of the slide groove. In turn, the lifting seat drives the correction plate to synchronously move towards or away from the center of the passage interval, adjusting the size of the passage interval to match the size of the bolt, avoiding the situation where the passage interval is too small and the bolt is blocked. The synchronous movement of the correction plate can keep the center position of the passage interval unchanged, so that the bolt after position correction can always match the position of the vision detector. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of the present invention on the testing mechanism side.

[0015] Figure 2 The diagram shown is a structural schematic of the present invention on the defective product tank side.

[0016] Figure 3 The diagram shows the correction plate and passageway structure in section A.

[0017] 1-Base, 2-Turntable, 3-Rotary motor, 4-Magnetic conveyor belt, 5-Vibrating plate, 6-Glue applicator, 7-Detection mechanism, 8-Mesh belt dryer, 9-Defective product tank, 10-Vision detector, 11-First cylinder, 12-Second cylinder, 13-Telescopic rod, 14-Discharge channel, 15-Good product tank, 16-Photoelectric sensor, 17-Delay interval, 18-Support frame, 19-Correction plate, 20-Arc-shaped surface, 21-Passage interval, 22-Slide groove, 23-Screw motor, 24-Lifting seat, 25-Drive screw. Detailed Implementation

[0018] like Figures 1-3 The bolt gluing disc machine shown includes a main body and a PLC controller. The side of the main body is equipped with a vibrating plate 5, a glue applicator 6, a detection mechanism 7, a mesh belt dryer 8, a defective product trough 9, and a feeding mechanism. The main body is equipped with a magnetic conveyor belt 4. The detection mechanism 7 is equipped with a vision detector 10 aligned with the magnetic conveyor belt 4. The feeding mechanism includes a first cylinder 11 and a second cylinder 12. Both the first cylinder 11 and the second cylinder 12 are connected to telescopic rods 13 for coordinated driving. The telescopic rods 13 are correspondingly positioned above the magnetically attracted bolt heads on the magnetic conveyor belt 4. The mesh belt of the mesh belt dryer 8 and the defective product trough 9 are respectively positioned below different telescopic rods 13. The PLC controller is electrically connected to the main body, the detection mechanism 7, and the feeding mechanism.

[0019] The PLC controller is electrically connected to the main body of the disc machine, the detection mechanism 7, and the unloading mechanism for control. The vibratory feeder 5 is activated to neatly transport the unprocessed bolts onto the main body of the disc machine. The main body of the disc machine uses the magnetic force of the magnetic conveyor belt 4 to attract the bolt heads, causing the screw to extend outwards. The main body of the disc machine rotates horizontally, driving the screw through the glue applicator 6 to apply glue. After passing through the detection mechanism 7, the visual detector 10 captures images of the bolts and sends them to the PLC controller. The PLC controller uses visual software to detect whether the bolts in the images have missed areas or poor glue application. When the bolts are properly glued, the PLC controller, based on the set rotation position of the main body of the disc machine, sends an electrical signal to start the first cylinder 11 after the detected bolts move to the mesh belt dryer 8. The first cylinder 11 drives the connected telescopic rod 13 to extend and retract once. The bottom end of the telescopic rod 13 descends, pushing the bolt downward away from the main body of the disc machine. The bolt falls onto the mesh belt below and is sent into the mesh belt dryer 8 for glue drying. Afterward, it is sent out of the mesh belt dryer 8 as a good product. When the bolt has poor glue application, the PLC controller sends an electrical signal to start the second cylinder 12 after the detected bolt moves to the defective product tank 9. The second cylinder 12 drives the connected telescopic rod 13 to extend and retract once, pushing the bolt away from the main body of the disc machine and falling into the defective product tank 9 below. It is collected separately from the good bolts, avoiding the mesh belt dryer 8 from doing useless work in drying defective products, saving the manpower required to separate defective products, effectively separating and concentrating defective products, and facilitating the re-coating of defective products.

[0020] The main body of the disc machine includes a base 1 and a horizontally arranged turntable 2. The base 1 is equipped with a rotary motor 3 that drives the turntable 2. A magnetic conveyor belt 4 is arranged on the side of the turntable 2. The vibrating plate 5 is provided with a discharge channel 14 extending to the magnetic conveyor belt 4. The mesh belt dryer 8 is provided with a good product trough 15, which is located below the end of the mesh belt of the mesh belt dryer 8. The vibrating plate 5, the glue applicator 6, the detection mechanism 7, the mesh belt dryer 8 and the defective product trough 9 are arranged in sequence along the rotation direction of the turntable 2. The first cylinder 11 and the second cylinder 12 are both mounted on the base 1.

[0021] A rotary motor 3 is installed on the base 1, and the rotary motor 3 is driven by the turntable 2 to rotate horizontally. The vibrating plate 5 vibrates and arranges the internal bolts neatly. Then, they are sent from the discharge channel 14 to the magnetic conveyor belt 4 on the side of the turntable 2. The magnetic conveyor belt 4 uses magnetic force to attract the head of the bolt for conveying. By setting a good product trough 15 below the end of the mesh belt of the mesh belt dryer 8, the good bolts sent out of the mesh belt dryer 8 fall into the good product trough 15 for collection, which facilitates the centralized transportation to the next stage.

[0022] The detection mechanism 7 is also equipped with a photoelectric sensor 16 that aligns with the magnetic conveyor belt 4. The photoelectric sensor 16 and the vision detector 10 are arranged in sequence along the rotation direction of the turntable 2, and a delay interval 17 is provided between the photoelectric sensor 16 and the vision detector 10.

[0023] The photoelectric sensor 16 on the detection mechanism 7 first detects the magnetic conveyor belt 4. When it detects a bolt magnetically attracted to the magnetic conveyor belt 4, it sends an electrical signal to the PLC controller. The PLC controller then activates the vision detector 10 to detect the adhesive application on the bolts of the magnetic conveyor belt 4. This avoids meaningless detection when there are no bolts on the magnetic conveyor belt 4 and prevents misjudgment as insufficient adhesive application, thus avoiding the activation of the second cylinder 12. A delay interval 17 is provided between the photoelectric sensor 16 and the vision detector 10. By utilizing the time interval 17, the time it takes for the bolt to travel from the position of the photoelectric sensor 16 to the position of the vision detector 10 is extended, giving the PLC controller sufficient time to activate the vision detector 10 and preventing the bolt from having already passed in front of the vision detector 10 during the activation process.

[0024] The detection mechanism 7 is equipped with a correction mechanism, which includes a support frame 18 and a pair of correction plates 19. The support frame 18 is connected to the base 1. The correction plates 19 are arranged vertically and connected to the support frame 18. The position of the correction plates 19 corresponds to the position of the bolt head on the main body of the disc machine. The two sides of the opposite ends of the correction plates 19 are provided with arc-shaped surfaces 20. There is a passage interval 21 between the correction plates 19. The position of the passage interval 21 matches the visual detector 10.

[0025] The bolts are allowed to pass through the passage interval 21 between the correction plates 19. When the position of the bolt is slightly offset due to the conveying of the vibrating plate 5, the sliding of its own weight, or the application of adhesive, the head of the bolt will contact the arc surface 20. Then, guided by the arc surface 20, the bolt moves to the passage interval 21 between the correction plates 19, adjusting the position of the bolt to match the visual detector 10, thus avoiding interference with the visual detection.

[0026] The support frame 18 is provided with a vertical slide groove 22. The end of the slide groove 22 is connected to a lead screw motor 23. The correction plates 19 are all connected to lifting seats 24. The lifting seats 24 are slidably connected to the slide groove 22. The lead screw motor 23 is connected to a drive lead screw 25 for linkage. The two ends of the drive lead screw 25 are provided with threads in opposite directions. The drive lead screw 25 is threadedly connected to the lifting seats 24, and the lifting seats 24 are symmetrically arranged at both ends of the drive lead screw 25.

[0027] A lead screw motor 23 is connected to a drive screw 25 for linkage. The two ends of the drive screw 25 have threads in opposite directions. The drive screw 25 is threadedly connected to the lifting seat 24, and the lifting seat 24 is symmetrically arranged at both ends of the drive screw 25. After the PLC controller is used to start the lead screw motor 23, the lead screw motor 23 causes the drive screw 25 to rotate. The drive screw 25 is threadedly engaged with the lifting seat 24, driving the lifting seat 24 to move along the slide groove 22, synchronously moving towards the center of the slide groove 22 or away from both ends of the slide groove 22. Then, the lifting seat 24 drives the correction plate 19 to synchronously move towards or away from the center of the passage interval 21, adjusting the size of the passage interval 21 to match the size of the bolt, avoiding the situation where the passage interval 21 is too small and blocks the bolt. The synchronous movement of the correction plate 19 can keep the center position of the passage interval 21 unchanged, so that the bolt after position correction can always match the position of the vision detector 10.

Claims

1. A bolt gluing disc machine capable of classifying the discharging, characterized in that: The machine includes a disc machine body and a PLC controller. The disc machine body has a vibrating plate (5), a glue applicator (6), a detection mechanism (7), a mesh belt dryer (8), a defective product tank (9), and a feeding mechanism on its side. The disc machine body is equipped with a magnetic conveyor belt (4). The detection mechanism (7) is equipped with a vision detector (10) aligned with the magnetic conveyor belt (4). The feeding mechanism includes a first cylinder (11) and a second cylinder (12). Both the first cylinder (11) and the second cylinder (12) are connected to telescopic rods (13) for coordinated driving. The telescopic rods (13) are correspondingly set above the magnetic bolt heads on the magnetic conveyor belt (4). The mesh belt of the mesh belt dryer (8) and the defective product tank (9) are respectively set below different telescopic rods (13). The PLC controller is electrically connected to the disc machine body, the detection mechanism (7), and the feeding mechanism.

2. The bolt gluing disc machine capable of classifying the bolts according to claim 1, characterized in that: The main body of the disc machine includes a base (1) and a horizontally arranged turntable (2). The base (1) is equipped with a rotary motor (3) that drives the turntable (2) by connecting the shaft. The magnetic conveyor belt (4) is arranged on the side of the turntable (2). The vibrating plate (5) is equipped with a discharge channel (14) extending to the magnetic conveyor belt (4). The mesh belt dryer (8) is equipped with a good product trough (15). The good product trough (15) is located below the end of the mesh belt of the mesh belt dryer (8). The vibrating plate (5), the glue applicator (6), the detection mechanism (7), the mesh belt dryer (8) and the defective product trough (9) are arranged in sequence along the rotation direction of the turntable (2). The first cylinder (11) and the second cylinder (12) are both mounted on the base (1).

3. The bolt gluing disc machine capable of classifying the bolts according to claim 1, characterized in that: The detection mechanism (7) is also equipped with a photoelectric sensor (16) aligned with the magnetic conveyor belt (4). The photoelectric sensor (16) and the vision detector (10) are arranged in sequence along the rotation direction of the turntable (2). A delay interval (17) is provided between the photoelectric sensor (16) and the vision detector (10).

4. The bolt gluing disc machine capable of classifying the bolts according to claim 3, characterized in that: The detection mechanism (7) is equipped with a correction mechanism, which includes a support frame (18) and a pair of correction plates (19). The support frame (18) is connected to the base (1). The correction plates (19) are arranged vertically on the support frame (18). The position of the correction plates (19) corresponds to the position of the bolt head on the main body of the disc machine. The two sides of the opposite ends of the correction plates (19) are provided with arc-shaped surfaces (20). There is a passage interval (21) between the correction plates (19). The position of the passage interval (21) matches the visual detector (10).

5. The bolt gluing disc machine capable of classifying the bolts according to claim 4, characterized in that: The support frame (18) is provided with a vertical slide groove (22). The end of the slide groove (22) is connected to a lead screw motor (23). The correction plate (19) is connected to a lifting seat (24). The lifting seat (24) is slidably connected to the slide groove (22). The lead screw motor (23) is connected to a drive screw (25) for linkage. The two ends of the drive screw (25) are provided with threads in opposite directions. The drive screw (25) is threadedly connected to the lifting seat (24), and the lifting seat (24) is symmetrically arranged at both ends of the drive screw (25).

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