A big head reverse detection and removing device for tapered roller conveying line

Abstract

The utility model provides a kind of big head reverse detection and elimination device of tapered roller conveying line, comprising: blanking mechanism, the conveying mechanism being connected with blanking mechanism, the detection device being located in the one side of conveying mechanism, the elimination mechanism being located in the other side of conveying mechanism and being after detection device, for connecting the recovery device of elimination mechanism and blanking mechanism, the control box being electrically connected with detection device, elimination mechanism;Through the above scheme, detection device and elimination mechanism operate together, once the big head reverse roller is detected, it can be immediately removed from main conveying line by elimination mechanism, avoid defective product to flow into subsequent assembly process, recovery device directs the eliminated roller to blanking mechanism again, form the closed loop system of "detection-elimination-recovery-reinspection", replace manual visual inspection by automatic detection device, effectively avoid the missed detection, misdiagnosis problem caused by fatigue, attention dispersion and other subjective factors in manual detection, so that bearing assembly precision and product quality are stable.

Description

Technical Field

[0001] This utility model relates to the field of tapered roller inspection technology, specifically to a tapered roller conveyor line with reversed large end inspection and rejection device. Background Technology

[0002] Tapered rollers are key rolling elements in roller bearings. They are frustum-shaped with minimal difference in diameter between their two end faces. On automated assembly lines, rollers are often fed into the feed in a random, unordered manner, making it easy for them to end up with reversed large and small ends. If rollers with reversed large ends enter subsequent assembly stages, it will directly lead to excessive bearing clearance, decreased rotational accuracy, and even scrap the entire batch of products.

[0003] Traditional inspection methods mainly rely on manual visual inspection. Since the diameter difference between the two ends of tapered rollers is not obvious, relying solely on manual visual inspection is not only inefficient, but also prone to missed or false inspections due to human factors, which affects the quality of bearing products. Utility Model Content

[0004] This utility model provides a tapered roller conveyor line with reversed large end detection and rejection device to solve the problem of missed detection and false detection by existing manual inspection methods, which affects the quality of bearing products.

[0005] To solve the above problems, this utility model provides a tapered roller conveyor line with large end reversed detection and rejection device, including: a feeding mechanism, a conveying mechanism connected to the feeding mechanism, a detection device located on one side of the conveying mechanism, a rejection mechanism located on the other side of the conveying mechanism and after the detection device, a recycling device for connecting the rejection mechanism and the feeding mechanism, and a control box electrically connected to the detection device and the rejection mechanism. With the above scheme, the detection device and the rejection mechanism work together. Once a roller with the large end reversed is detected, it can be immediately removed from the main conveyor line by the rejection mechanism to prevent defective products from flowing into subsequent assembly processes. The recycling device guides the rejected roller back to the unloading mechanism, forming a closed-loop system of "detection-rejection-recycling-re-inspection". By replacing manual visual inspection with an automated detection device, the problem of missed detection and false detection caused by subjective factors such as fatigue and distraction in manual inspection is effectively avoided, so as to ensure the stability of bearing assembly accuracy and product quality.

[0006] According to one embodiment of the present invention, the feeding mechanism includes: a feeding port, a feeding turntable located below the feeding port, and a first motor for driving the feeding turntable; through the above scheme, the feeding turntable transfers the conical rollers of the feeding port one by one to the conveying mechanism through rotation, realizing continuous single-piece feeding, avoiding detection interference caused by roller accumulation, and providing a stable basis for identification by subsequent detection devices.

[0007] According to one embodiment of the present invention, the conveying mechanism includes: a rotary conveyor chain, a support part for supporting the rotary conveyor chain, a support drive part located at the center of the rotary section of the rotary conveyor chain, the support drive part being connected to the output shaft of a second motor, and one end of the rotary conveyor chain being located below the unloading turntable; through the above scheme, the rotary conveyor chain adopts a ring-shaped circulating structure, which can realize the uninterrupted conveying of tapered rollers. The support drive part is equipped with a conventional transmission device connected to the output shaft of the second motor, which reduces power loss and slippage risk. The motor speed can be adjusted to match the conveying speed requirements, saving energy while improving control response speed.

[0008] According to one embodiment of this utility model, the detection device includes: a support frame, a camera fixed on the support frame, a bowl-shaped light source fixed on one side of the support frame and located below the camera, a light-transmitting hole provided above the bowl-shaped light source, the light-transmitting hole being perpendicular to the camera, and an image display fixed on one side of the support frame. Through the above scheme, the bowl-shaped light source, through the design of the annular reflective surface, projects light onto the surface of the conical roller at a uniform angle, eliminating local overexposure or shadow areas, so that the camera can clearly capture the features of the large end face of the roller. The perpendicular alignment of the light-transmitting hole with the camera further ensures that the incident angle of the light is consistent with the lens axis, avoiding image distortion caused by oblique projection, and improving the accuracy of the large end orientation recognition.

[0009] According to one embodiment of the present invention, the detection device is also equipped with an alarm. When the detection device detects an abnormality of the roller head being reversed, the alarm can immediately emit an audible and visual signal, which is automatically associated with the detection image data and the action log of the rejection mechanism to form a timeline of the roller head reversal event, providing data support for the optimization of the device.

[0010] According to one embodiment of this utility model, the camera is an industrial CCD camera, whose lens axis coincides with the center line of the light-transmitting hole, and the shooting frame rate of the camera is synchronized with the linear speed of the rotary conveyor chain. Through the above scheme, the industrial CCD camera has high resolution, and the synchronous control of the shooting frame rate and the linear speed of the conveyor chain ensures that each roller is completely captured as it passes through the inspection station.

[0011] According to one embodiment of this utility model, the rejection mechanism includes: a support platform fixed to the side of the rotary conveyor chain, a solenoid valve fixed to the support platform, a cylinder connected to the solenoid valve via an air pipe, and a push plate connected to the top of the piston rod of the cylinder. The push plate moves in the direction of the rotary conveyor chain. With the above scheme, when the detection device sends a rejection signal, the solenoid valve is energized, causing the piston rod of the cylinder to drive the push plate to immediately extend from the standby position and push the reverse roller away from the conveyor chain. The linear motion characteristics of the cylinder piston rod ensure that the trajectory of the push plate is stable, avoiding rejection position deviation caused by mechanical vibration and improving the rejection success rate.

[0012] According to one embodiment of this utility model, the recycling device includes: a collection bin fixed to the side of the rotary conveyor chain and located opposite the cylinder; a baffle is provided on the side of the collection bin away from the cylinder; a conveyor belt is connected to the bottom of the collection bin; a third motor is provided at one end of the conveyor belt; and the other end of the conveyor belt is connected to the feed inlet. Through the above scheme, the conveyor belt is directly driven by the third motor, and the collection bin and the conveyor belt form a closed-loop recycling system. The inner wall of the collection bin is also provided with a polyurethane buffer layer. When the rejection mechanism completes its action, the conveyor belt immediately starts to send the roller back to the feed inlet, eliminating the downtime caused by manual handling and improving work efficiency.

[0013] According to one embodiment of the present invention, the end of the push plate is provided with a flexible buffer pad. The flexible buffer pad is made of polyurethane or silicone. When the push plate comes into contact with the roller, it can reduce the peak impact force and avoid quality defects such as scratches on the end face of the roller and chamfer deformation caused by the rigid collision of the push plate, so that the rejection action does not affect the appearance and assembly performance of the product.

[0014] According to one embodiment of this utility model, the control box is electrically connected to an image display, a camera, an alarm, and a solenoid valve. The control box contains a main control unit, which controls an image processing module, a rejection control module, and a data storage module. The rejection control module is also connected to an intermediate relay. The image processing module is used to extract edges and calculate the end face diameter of the image acquired by the detection device to determine whether the tapered roller is reversed at the large end. The rejection control module is used to output a rejection signal to the rejection mechanism when the large end is determined to be reversed. The data storage module is used to record detection and rejection data.

[0015] The technical advantages of this application are as follows: This application provides a tapered roller conveyor line with a reversed large end detection and rejection device. The detection device and rejection mechanism work together. Once a roller with a reversed large end is detected, it can be immediately removed from the main conveyor line by the rejection mechanism to prevent defective products from flowing into subsequent assembly processes. The recycling device guides the rejected roller back to the unloading mechanism, forming a closed-loop system of "detection-rejection-recycling-re-inspection". By replacing manual visual inspection with an automated detection device, the problem of missed detection and false detection caused by subjective factors such as fatigue and distraction in manual inspection is effectively avoided, so as to ensure the stability of bearing assembly accuracy and product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a tapered roller conveyor line with reversed large end detection and rejection device provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of a tapered roller conveyor line with reversed large end detection and rejection device provided by this utility model.

[0018] Figure 3 This is a schematic diagram of the oblique rear view structure of a tapered roller conveyor line with a reversed large end detection and rejection device provided by this utility model.

[0019] Figure 4 This utility model provides Figure 2 A magnified view of the details at point A in the middle.

[0020] Figure 5 This is a control principle diagram of a tapered roller conveyor line with reversed large end detection and rejection device provided by this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Feeding mechanism; 2. Conveying mechanism; 3. Detection device; 4. Rejection mechanism; 5. Recycling device; 6. Control box; 110. Feed inlet; 120. Feeding turntable; 130. First motor; 230. Rotary conveyor chain; 220. Support unit; 210. Support drive unit; 211. Second motor; 310. Support frame; 320. Image display; 330. Camera; 340. Bowl-shaped light source; 341. Light transmission hole; 350. Alarm; 410. Support platform; 420. Solenoid valve; 430. Cylinder; 431. Push plate; 510. Baffle; 520. Collection bin; 530. Conveyor belt; 540. Third motor. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-5 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0023] Reference Figures 1-5 This utility model provides a tapered roller conveyor line with reversed large end detection and rejection device, including: a feeding mechanism 1, a conveying mechanism 2 connected to the feeding mechanism 1, a detection device 3 located on one side of the conveying mechanism 2, a rejection mechanism 4 located on the other side of the conveying mechanism 2 and behind the detection device 3, a recycling device 5 for connecting the rejection mechanism 4 and the feeding mechanism 1, and a control box 6 electrically connected to the detection device 3 and the rejection mechanism 4. With the above scheme, the detection device 3 and the rejection mechanism 4 work together. Once a roller with the large end reversed is detected, it can be immediately removed from the main conveyor line by the rejection mechanism 4 to prevent defective products from flowing into subsequent assembly processes. The recycling device 5 guides the rejected roller back to the unloading mechanism 1, forming a closed-loop system of "detection-rejection-recycling-re-re-inspection". By replacing manual visual inspection with the automated detection device 3, the problems of missed detection and false detection caused by subjective factors such as fatigue and distraction in manual inspection are effectively avoided, so as to ensure the stability of bearing assembly accuracy and product quality.

[0024] The aforementioned feeding mechanism 1 includes: a feeding port 110, a feeding turntable 120 located below the feeding port 110, and a first motor 130 for driving the feeding turntable 120. Through the above scheme, the feeding turntable 120 transfers the conical rollers of the feeding port 110 one by one to the conveying mechanism 2 through rotation, realizing continuous single-piece feeding, avoiding detection interference caused by roller accumulation, and providing a stable foundation for the identification of the subsequent detection device 3.

[0025] The aforementioned conveying mechanism 2 includes: a rotary conveyor chain 230, a support part 220 for supporting the rotary conveyor chain 230, and a support drive part 210 located at the center of the rotary section of the rotary conveyor chain 230. The support drive part 210 is connected to the output shaft of the second motor 211, and one end of the rotary conveyor chain 230 is located below the unloading turntable 120. Through the above scheme, the rotary conveyor chain 230 adopts a ring-shaped circulation structure, which can realize the uninterrupted conveying of tapered rollers. The support drive part 210 is equipped with a conventional transmission device connected to the output shaft of the second motor 211, which reduces power loss and slippage risk. The motor speed can be adjusted to match the conveying speed requirements, saving energy while improving the control response speed.

[0026] The aforementioned detection device 3 includes: a support frame 310, a camera 330 fixed on the support frame 310, a bowl-shaped light source 340 fixed on one side of the support frame 310 and located below the camera 330, a light-transmitting hole 341 provided above the bowl-shaped light source 340, the light-transmitting hole 341 being perpendicularly facing the camera 330, and an image display 320 fixed on one side of the support frame 310. Through the above scheme, the bowl-shaped light source 340, through its annular reflective surface design, projects light onto the surface of the tapered roller at a uniform angle, eliminating local overexposure or shadow areas, allowing the camera 330 to clearly capture the characteristics of the roller, and displaying the image of the tapered roller on the image display 320 connected to it. The perpendicular alignment of the light-transmitting hole 341 and the camera 330 further ensures that the light incident angle is consistent with the lens axis, avoiding image distortion caused by oblique projection, and improving the accuracy of head orientation recognition.

[0027] The aforementioned detection device 3 is also equipped with an alarm 350. When the detection device 3 detects an abnormality of the roller head being reversed, the alarm 350 can immediately emit an audible and visual signal, which is automatically associated with the detection image data and the action log of the rejection mechanism 4 to form a timeline of the large head reversal event, providing data support for the optimization of the device.

[0028] The aforementioned camera 330 is an industrial CCD camera. Its lens axis coincides with the center line of the light-transmitting hole 341, and the shooting frame rate of the camera 330 is synchronized with the linear speed of the rotary conveyor chain 230. Through the above scheme, the industrial CCD camera has high resolution and synchronous control of the shooting frame rate and the linear speed of the conveyor chain, ensuring that each roller is captured as a complete frame image when it passes through the inspection station.

[0029] The aforementioned rejection mechanism 4 includes: a support platform 410 fixed to the side of the rotary conveyor chain 230, a solenoid valve 420 fixed to the support platform 410, and a cylinder 430 connected to the solenoid valve 420 via an air pipe. A push plate 431 is connected to the top of the piston rod of the cylinder 430. The movement direction of the push plate 431 is towards the rotary conveyor chain 230. With the above scheme, when the detection device 3 sends a rejection signal, the signal is sent to the intermediate relay in the control box 6. The intermediate relay sends a signal to the solenoid valve 420, which is energized, causing the piston rod of the cylinder 430 to drive the push plate 431 to immediately extend from the standby position and push the reverse roller away from the conveyor chain. The linear motion characteristics of the piston rod of the cylinder 430 ensure that the trajectory of the push plate 431 is stable, avoiding rejection position deviation caused by mechanical vibration and improving the rejection success rate.

[0030] The aforementioned recycling device 5 includes: a collection bin 520 fixed to the side of the rotary conveyor chain 230 and located opposite the cylinder 430; a baffle 510 is provided on the side of the collection bin 520 away from the cylinder 430; a conveyor belt 530 is connected to the bottom of the collection bin 520; a third motor 540 is provided at one end of the conveyor belt 530; and the other end of the conveyor belt 530 is connected to the feed inlet 110. Through the above scheme, the conveyor belt 530 is directly driven by the third motor 540, and the collection bin 520 and the conveyor belt 530 form a closed-loop recycling system. The inner wall of the collection bin 520 is also provided with a polyurethane buffer layer. When the rejection mechanism 4 completes its action, the conveyor belt 530 immediately starts to send the roller back to the feed inlet 110, eliminating the downtime caused by manual handling and improving work efficiency.

[0031] The end of the push plate 431 is provided with a flexible buffer pad. The flexible buffer pad is made of polyurethane or silicone. When the push plate 431 comes into contact with the roller, it can reduce the peak impact force and avoid quality defects such as scratches on the end face of the roller and chamfer deformation caused by the rigid collision of the push plate 431, so that the rejection action does not affect the appearance and assembly performance of the product.

[0032] The control box 6 is electrically connected to the image display 320, camera 330, alarm 350, and solenoid valve 420. The control box 6 is equipped with a main control unit, which controls the image processing module, rejection control module, and data storage module. The rejection control module is also connected to an intermediate relay. The image processing module is used to extract edges and calculate the end face diameter of the image acquired by the detection device 3 to determine whether the tapered roller is reversed at the large end. The rejection control module is used to output a rejection signal to the rejection mechanism 4 when it is determined that the large end is reversed. The data storage module is used to record the detection and rejection data.

[0033] Working principle: The tapered rollers enter the feed turntable 120 through the feed inlet 110. The first motor 130 drives the feed turntable 120 to rotate, feeding the rollers one by one and continuously to one end of the rotary conveyor chain 230. The second motor 211 drives the support drive unit 210, which drives the rotary conveyor chain 230 to continuously circulate and transport the rollers smoothly to the inspection area.

[0034] During the conveying process, the rollers pass through the detection device 3. The bowl-shaped light source 340, with its annular reflective surface design, evenly illuminates the outer surface of the rollers. The camera 330 captures the image of the large end face of the rollers vertically and clearly through the light-transmitting hole 341. The camera 330 transmits the captured image to the image processing module inside the control box. After receiving the image data, the main control unit of the control box 6 clearly displays it on the image display 320. The frame rate of the camera 330 is synchronized with the linear speed of the conveyor chain to ensure that each roller can be captured with a complete frame. The image processing module controlled by the main control unit inside the control box 6 receives the image data from the camera 330, performs edge extraction and end face diameter calculation, and thus determines whether the tapered roller is in the large end reversed state.

[0035] If the image processing module determines that the roller is reversed (large end inverted), the control unit sends a signal, and the rejection control module immediately sends a rejection signal to the intermediate relay upon receiving the signal. At the same time, the control unit sends a signal to the alarm 350, and the alarm 350 emits an audible and visual signal. The data storage module records the relevant detection image data and the action log of the rejection mechanism, forming a timeline of the large end reversal event.

[0036] After receiving the rejection signal, the intermediate relay sends a signal to energize the solenoid valve 420 of the rejection mechanism 4, which drives the cylinder 430. The piston rod of the cylinder 430 drives the push plate 431 with a flexible buffer pad to extend quickly, pushing the roller with the large end reversed off the conveyor chain.

[0037] The rejected rollers fall into the collection bin 520 of the recycling device 5. The third motor 540 drives the conveyor belt 530 to transport the rejected rollers in the collection bin 520 back to the feed port 110. These rollers re-enter the feeding mechanism to carry out a closed-loop cycle of "inspection-rejection-recycling-re-inspection" until all rollers meet the positive requirements and proceed to the next process.

[0038] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for detecting and rejecting tapered roller conveyors with the large end reversed, characterized in that: include: The feeding mechanism (1), the conveying mechanism (2) connected to the feeding mechanism (1), the detection device (3) located on one side of the conveying mechanism (2), the rejection mechanism (4) located on the other side of the conveying mechanism (2) and behind the detection device (3), the recycling device (5) for connecting the rejection mechanism (4) and the feeding mechanism (1), and the control box (6) electrically connected to the detection device (3) and the rejection mechanism (4).

2. The tapered roller conveyor line large end reversed detection and rejection device according to claim 1, characterized in that, The feeding mechanism (1) includes: a feeding port (110), a feeding turntable (120) located below the feeding port (110), and a first motor (130) for driving the feeding turntable (120).

3. The tapered roller conveyor line large end reversed detection and rejection device according to claim 2, characterized in that, The conveying mechanism (2) includes: a rotary conveyor chain (230), a support part (220) for supporting the rotary conveyor chain (230), a support drive part (210) located at the center of the rotary section of the rotary conveyor chain (230), the support drive part (210) being connected to the output shaft of the second motor (211), and one end of the rotary conveyor chain (230) being located below the unloading turntable (120).

4. The tapered roller conveyor line large end reversed detection and rejection device according to claim 3, characterized in that, The detection device (3) includes: a support frame (310), a camera (330) fixed on the support frame (310), a bowl-shaped light source (340) fixed on one side of the support frame (310) and located below the camera (330), a light-transmitting hole (341) is provided above the bowl-shaped light source (340), the light-transmitting hole (341) is perpendicular to the camera (330), and an image display (320) fixed on one side of the support frame (310).

5. The tapered roller conveyor line large end reversed detection and rejection device according to claim 4, characterized in that, The detection device (3) is also equipped with an alarm (350).

6. The tapered roller conveyor line large end reversed detection and rejection device according to claim 4, characterized in that, The camera (330) is an industrial CCD camera, whose lens axis coincides with the center line of the light-transmitting hole (341), and the shooting frame rate of the camera (330) is synchronized with the linear speed of the rotary conveyor chain (230).

7. The tapered roller conveyor line large end reversed detection and rejection device according to claim 5, characterized in that, The rejection mechanism (4) includes: a support platform (410) fixed to the side of the rotary conveyor chain (230), a solenoid valve (420) fixed on the support platform (410), and a cylinder (430) connected to the solenoid valve (420) via an air pipe. The piston rod of the cylinder (430) is connected to a push plate (431), and the push plate (431) moves in the direction of the rotary conveyor chain (230).

8. The tapered roller conveyor line large end reversal detection and rejection device according to claim 7, characterized in that, The recycling device (5) includes: a collection bin (520) fixed to the side of the rotary conveyor chain (230) and located opposite the cylinder (430), a baffle (510) provided on the side of the collection bin (520) away from the cylinder (430), a conveyor belt (530) connected to the bottom of the collection bin (520), a third motor (540) provided at one end of the conveyor belt (530), and one end of the conveyor belt (530) connected to the feed inlet (110).

9. The tapered roller conveyor line large end reversal detection and rejection device according to claim 7, characterized in that, The end of the push plate (431) is provided with a flexible buffer pad.

10. The tapered roller conveyor line large end reversal detection and rejection device according to claim 7, characterized in that, The control box (6) is electrically connected to the image display (320), the camera (330), the alarm (350), and the solenoid valve (420).

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