Tire appearance defect detection machine

Abstract

This utility model relates to a tire appearance defect inspection machine, including an inspection device, a conveying device, a lifting device, a rotating device, and a centering device. The conveying device includes a roller platform composed of a conveyor support frame and multiple parallel rollers. The rollers in the roller platform are divided in the middle to form a hollow section, and the short rollers on both sides of the hollow section can support the tire to be inspected. The roller platform has a rotation drive device. The lifting device can drive the roller platform to move up and down. The centering device includes an inspection mounting bracket with a centering guide rail extending from the periphery to the center. A centering module is set on the centering guide rail, and the centering module drives the upright unit centering roller to move along the centering guide rail to center the tire to be inspected. The inspection device is fixed on the inspection mounting bracket. The rotating device includes multiple powered rolling devices set in the hollow section and higher than the roller platform. Each powered rolling device is arranged in a centripetal manner and can support and drive the tire to be inspected to rotate.

Description

Technical Field

[0001] This utility model relates to a tire appearance defect detection machine, belonging to the field of tire appearance inspection technology. Background Technology

[0002] Tire appearance inspection is a crucial quality control step in the tire manufacturing process, typically performed after vulcanization and before the finished product leaves the factory. Its main purpose is to promptly identify and reject products with surface defects, ensuring that the appearance quality of every tire leaving the factory meets national standards and the company's internal control requirements.

[0003] Traditional tire appearance inspection relies on manual visual inspection, which has limited efficiency and accuracy, and the quality varies greatly. To replace the heavy manual work and improve the product's pass rate, using vision systems to replace manual inspection has become a market trend. However, there is currently no tire production line equipment that can effectively cooperate with vision inspection. Tires have many inspection surfaces, and the main methods are image recognition or 3D scanning. Often, the position of the vision inspection equipment needs to be adjusted during the inspection process, resulting in low standardization of vision inspection equipment and potential reliability risks. Summary of the Invention

[0004] The purpose of this invention is to provide a tire appearance defect detection machine, which provides an automated, assembly-line detection method for tire appearance defect detection. It integrates tire conveying, positioning, angle transformation, and visual inspection functions into one device, and does not require adjustment of the position of the visual inspection device during the inspection process. This improves the standardization of tire appearance defect detection equipment and reduces reliability risks.

[0005] The present invention adopts the following technical solution:

[0006] A tire appearance defect inspection machine includes an inspection device 5, comprising a conveying device 1, a lifting device 2, a rotating device 3, and a centering device 4. The conveying device 1 includes a roller platform composed of a conveyor line support frame 101 and multiple parallel rollers. The rollers in the roller platform are spaced apart to form a hollow section, and short rollers on both sides of the hollow section can support the tire to be inspected. The roller platform has a 204 rotation drive device. The lifting device 2 can drive the roller platform to move up and down. The centering device 4 includes an inspection mounting bracket 4. 01. The detection mounting bracket 401 has a centering guide rail 405 extending from the periphery to the center. A centering module 402 is provided on the centering guide rail 405. The centering module 402 drives the upright unit centering roller 406 to move along the centering guide rail 405 to center the tire to be tested. The detection device 5 is fixed on the detection mounting bracket 401. The rotating device 3 includes multiple power rolling devices arranged in the hollow part and higher than the roller platform. Each power roller device is arranged in a centripetal manner and can support and drive the tire to be tested to rotate.

[0007] It should be noted that when the lifting device 2 lowers the roller platform, the tire is positioned precisely at the hollowed-out area and supported by the short rollers surrounding it. As the roller platform continues to descend, the tire rests on the rotating device 3, thus separating from the roller platform. At this point, the centering device 4 first centers the tire, and then the detection device 5 can acquire and detect images or videos at the current angle. As the rotating device 3 rotates, the detection device 5 can complete acquisition and detection at various other angles. This technical solution integrates tire conveying, positioning, angle transformation, and visual inspection functions into a single device. Furthermore, it eliminates the need to adjust the position of the visual inspection equipment during the inspection process, improving the standardization of tire appearance defect detection equipment and reducing reliability risks.

[0008] Preferably, the rotation drive device of the roller platform includes a three-phase motor 103. The three-phase motor 103 drives a second sprocket set 104 located at one end of an adjacent pair of rollers to rotate via a first sprocket set 106. The second sprocket set 104 then drives each roller sequentially via third sprocket sets 105 arranged one by one on adjacent rollers. This design allows a single three-phase motor to drive all rollers to rotate actively.

[0009] Furthermore, the other end of the roller at one edge of the hollowed-out portion is also provided with the third sprocket set 105 that sequentially drives the short rollers. Because moving the tire requires the short rollers on both sides to rotate together, and the short rollers themselves cannot drive the short rollers on the opposite side to rotate, a third sprocket set 105 is also required on the other side of the hollowed-out portion.

[0010] Preferably, the lifting device 2 includes a main support 201, an electric cylinder 202, a lifting guide rail 203, and a connecting block 204; the electric cylinder 202 is fixed to the main support 201 with screws, the conveyor support frame 101 is connected to the electric cylinder 202 through a floating joint, the lifting guide rail 203 is fixed to the main support 201, and the connecting block 204 is fixedly connected to the lifting guide rail 203 and simultaneously fixedly connected to the conveyor support frame 101.

[0011] Furthermore, the rotating device 3 includes a rotating mechanism support 301, a rotating power roller 302, a synchronous pulley 303, and a servo motor 304; the rotating mechanism support 301 is fixedly connected to the main body support 201, the rotating power roller 302 is fixed to the rotating mechanism support 301, the driven pulley of the synchronous pulley 303 is fixed to the rotating power roller 302 by a key and a set screw, the servo motor 304 is connected to the rotating mechanism support 301, and the driving pulley of the synchronous pulley 303 is fixed to the servo motor 304 by a key and a set screw; the rotating power roller 302 provides power for the rotation of the tire.

[0012] Furthermore, the centering device 4 also includes a connecting plate 403 and a support plate 404; the centering module 402 is connected to the detection mounting bracket 401, the connecting plate 403 is connected to the centering module 402, the centering guide rail 405 is connected to the connecting plate 403, the support plate 404 is connected to the guide rail 405, and the single-head centering roller 406 is connected to the support plate 404.

[0013] Furthermore, the centering module 402 is a linear module.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1) Provides a streamlined, automated inspection method for tire appearance defect detection, which integrates tire conveying, positioning, angle transformation, and visual inspection functions into one device. Furthermore, it eliminates the need to adjust the position of the visual inspection device during the inspection process, thereby improving the standardization of tire appearance defect detection equipment and reducing reliability risks.

[0016] 2) It completely overcomes the drawbacks of traditional manual inspection, such as low efficiency, high cost, easy error, and missed detection, and improves work efficiency and detection accuracy.

[0017] 3) The structure of the visual inspection equipment has been simplified, enabling a single device to complete multiple inspection tasks on the tire. The structural design is simple and reasonable, highly practical, and relatively low in cost, which is conducive to large-scale promotion and application. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the tire appearance defect detection machine of this utility model.

[0019] Figure 2 This is a structural diagram of the conveying device, lifting device, and rotating device.

[0020] Figure 3 This is a schematic diagram of the conveying device.

[0021] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0022] Figure 5 This is a schematic diagram of one unit in a rotating device.

[0023] Figure 6 This is a schematic diagram of the centering device.

[0024] Figure 7 yes Figure 6 A magnified view of a portion of the image.

[0025] In the diagram, 1. Conveying device, 2. Lifting device, 3. Rotating device, 4. Centering device;

[0026] 101. Conveyor line support frame; 102. Conveyor power roller; 103. Three-phase motor; 104. Second sprocket set; 105. Third sprocket set; 106. First sprocket set;

[0027] 201. Main body support; 202. Electric cylinder; 203. Lifting guide rail; 204. Connecting block;

[0028] 301. Rotating mechanism support; 302. Rotating power drum; 303. Synchronous belt pulley; 304. Servo motor;

[0029] 401. Inspection and installation bracket; 402. Centering module; 403. Connecting plate; 404. Support plate; 405. Centering guide rail; 406. Single-head centering roller. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] See Figure 1 A tire appearance defect inspection machine includes an inspection device 5, which includes a conveying device 1, a lifting device 2, a rotating device 3, and a centering device 4.

[0032] See Figure 1-3 The conveying device 1 includes a roller platform consisting of a conveyor support frame 101 and multiple parallel rollers. The rollers in the roller platform are divided in the middle to form a hollow part, and the short rollers on both sides of the hollow part can support the tire to be tested; the roller platform has a 204 rotary drive device.

[0033] See Figure 3 The hollowed-out part is designed with a certain shape so that the tire can be placed on the short shaft of the roller in that part without falling off the hollowed-out part. However, the rotating device 3 can be completely located inside the hollowed-out part. When the roller platform drops below the height of the rotating device 3, the tire can be supported by the rotating device 3.

[0034] See Figure 2 The lifting device 2 can drive the roller platform to rise and fall; the centering device 4 includes a detection mounting bracket 401, the detection mounting bracket 401 has a centering guide rail 405 extending from the periphery to the center, a centering module 402 is provided on the centering guide rail 405, the centering module 402 drives the upright unit centering roller 406 to move along the centering guide rail 405 to center the tire to be tested; the detection device 5 is fixed on the detection mounting bracket 401.

[0035] See Figure 2 and combined Figure 5 The rotating device 3 includes multiple power rolling devices arranged in the hollowed-out part and higher than the roller platform. Each power roller device is arranged in a centripetal manner and can support and drive the tire to be tested to rotate.

[0036] It should be noted that when the lifting device 2 lowers the roller platform, the tire is positioned precisely at the hollowed-out area and supported by the short rollers surrounding it. As the roller platform continues to descend, the tire rests on the rotating device 3, thus separating from the roller platform. At this point, the centering device 4 first centers the tire, and then the detection device 5 can acquire and detect images or videos at the current angle. As the rotating device 3 rotates, the detection device 5 can complete acquisition and detection at various other angles. This technical solution integrates tire conveying, positioning, angle transformation, and visual inspection functions into a single device. Furthermore, it eliminates the need to adjust the position of the visual inspection equipment during the inspection process, improving the standardization of tire appearance defect detection equipment and reducing reliability risks.

[0037] See Figure 1 , 3 4. The rotation drive device of the roller platform includes a three-phase motor 103. The three-phase motor 103 drives a second sprocket set 104 located at one end of an adjacent pair of rollers to rotate via a first sprocket set 106. The second sprocket set 104 drives each roller sequentially via third sprocket sets 105 arranged one by one on adjacent rollers. This design allows a single three-phase motor to drive all rollers to rotate actively.

[0038] See Figure 3 and combined Figure 4The other end of the roller at one edge of the hollowed-out portion is also provided with the third sprocket set 105 that sequentially drives the short rollers. Because moving the tire requires the short rollers on both sides to rotate together, and the short rollers themselves cannot drive the short rollers on the opposite side to rotate, a third sprocket set 105 is also required on the other side of the hollowed-out portion.

[0039] See Figure 2 The lifting device 2 includes a main support 201, an electric cylinder 202, a lifting guide rail 203, and a connecting block 204. The electric cylinder 202 is fixed to the main support 201 with screws. The conveyor support frame 101 is connected to the electric cylinder 202 through a floating joint. The lifting guide rail 203 is fixed to the main support 201. The connecting block 204 is fixedly connected to the lifting guide rail 203 and is also fixedly connected to the conveyor support frame 101.

[0040] See Figure 2 and combined Figure 5 The rotating device 3 includes a rotating mechanism support 301, a rotating power roller 302, a synchronous pulley 303, and a servo motor 304. The rotating mechanism support 301 is fixedly connected to the main body support 201, the rotating power roller 302 is fixed to the rotating mechanism support 301, and the driven pulley of the synchronous pulley 303 is fixed to the rotating power roller 302 by a key and a set screw. The servo motor 304 is connected to the rotating mechanism support 301, and the driving pulley of the synchronous pulley 303 is fixed to the servo motor 304 by a key and a set screw. The power roller 302 provides power for the rotation of the tire.

[0041] See Figure 1 and combined Figure 6 The centering device 4 further includes a connecting plate 403 and a support plate 404; the centering module 402 is connected to the detection mounting bracket 401, the connecting plate 403 is connected to the centering module 402, the centering guide rail 405 is connected to the connecting plate 403, the support plate 404 is connected to the guide rail 405, and the single-head centering roller 406 is connected to the support plate 404.

[0042] See Figure 6 and Figure 7 The centering module 402 is a linear module.

[0043] This invention addresses the complex, multifaceted appearance of tires by providing a tire appearance defect inspection machine. This avoids the need for frequent switching between different machine types used in tire production. It offers a streamlined, automated inspection method for tire appearance defects, integrating tire conveying, positioning, angle adjustment, and visual inspection functions into a single device. Furthermore, it eliminates the need for adjustments to the visual inspection equipment during the inspection process, improving the standardization of tire appearance defect inspection equipment and reducing reliability risks.

Claims

1. A tire appearance defect inspection machine, comprising an inspection device (5), characterized in that: It includes a conveying device (1), a lifting device (2), a rotating device (3), and a centering device (4); The conveying device (1) includes a roller platform consisting of a conveyor support frame (101) and multiple parallel rollers. The rollers in the roller platform are separated in the middle to form a hollow part, and the short rollers on both sides of the hollow part can support the tire to be tested. The roller platform has a rotation drive device. The lifting device (2) can drive the roller platform to move up and down; The centering device (4) includes a detection mounting bracket (401), which has a centering guide rail (405) extending from the periphery to the center. A centering module (402) is provided on the centering guide rail (405). The centering module (402) drives an upright unit centering roller (406) to move along the centering guide rail (405) to center the tire to be tested. The detection device (5) is fixed on the detection mounting bracket (401). The rotating device (3) includes multiple power rolling devices arranged in the hollowed-out part and higher than the roller platform. Each power roller device is arranged in a centripetal manner and can support and drive the tire to be tested to rotate.

2. The tire appearance defect inspection machine as described in claim 1, characterized in that: The rotation drive device of the roller platform includes a three-phase motor (103). The three-phase motor (103) drives the second sprocket group (104) located at one end of an adjacent pair of rollers to rotate through the first sprocket group (106). The second sprocket group (104) realizes the sequential transmission of each roller through the third sprocket group (105) arranged one by one on the adjacent rollers.

3. The tire appearance defect inspection machine as described in claim 2, characterized in that: The other end of the roller at one edge of the hollowed-out part is also provided with the third sprocket group (105) that drives the short roller in sequence.

4. The tire appearance defect inspection machine as described in claim 1, characterized in that: The lifting device (2) includes a main support (201), an electric cylinder (202), a lifting guide rail (203), and a connecting block (204). The electric cylinder (202) is fixed to the main support (201) with screws. The conveyor support frame (101) is connected to the electric cylinder (202) through a floating joint. The lifting guide rail (203) is fixed to the main support (201). The connecting block (204) is fixedly connected to the lifting guide rail (203) and is also fixedly connected to the conveyor support frame (101).

5. The tire appearance defect inspection machine as described in claim 4, characterized in that: The rotating device (3) includes a rotating mechanism support (301), a rotating power roller (302), a synchronous pulley (303), and a servo motor (304); The rotating mechanism support (301) is fixedly connected to the main body support (201), the rotating power roller (302) is fixed to the rotating mechanism support (301), the driven pulley of the synchronous pulley (303) is fixed to the rotating power roller (302) by a key and a set screw, the servo motor (304) is connected to the rotating mechanism support (301), and the driving pulley of the synchronous pulley (303) is fixed to the servo motor (304) by a key and a set screw; the rotating power roller (302) provides power for the rotation of the tire.

6. The tire appearance defect inspection machine as described in claim 4, characterized in that: The centering device (4) also includes a connecting plate (403) and a support plate (404); The centering module (402) is connected to the detection mounting bracket (401), the connecting plate (403) is connected to the centering module (402), the centering guide rail (405) is connected to the connecting plate (403), the support plate (404) is connected to the guide rail (405), and the single-head centering roller (406) is connected to the support plate (404).

7. The tire appearance defect inspection machine as described in claim 6, characterized in that: The centering module (402) is a linear module.

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