A non-rotating glass bottle crack detection device and its detection method

Abstract

The present invention belongs to the technical field of glass bottle detection, and specifically relates to a non-rotating glass bottle crack detection device and its detection method. The detection method includes the following steps: eight first industrial cameras of the first detection component are triggered in sequence to capture and identify the vertical crack features; according to the detection results of the first detection component, the defective glass bottles are removed; the glass bottles flow through the second detection component, and four second industrial cameras on the first layer and eight second industrial cameras on the second layer take pictures simultaneously to capture and identify the vertical crack features; after taking pictures, two groups of arc-shaped light sources are lit successively, and the corresponding second industrial cameras on the third layer take pictures to capture and identify the vertical crack features; according to the detection results of the second detection component, the defective glass bottles are removed. The full-surface detection can be completed without rotating the glass bottle, solving the limitation of the traditional star wheel disc relying on the self-rotation of the bottle body, capturing crack defects through multi-angle light paths, and avoiding missed detections caused by the geometric irregularity of special-shaped bottles.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass bottle detection, and specifically relates to a non-rotating glass bottle crack detection device and its detection method. Background Art

[0002] During the production process of glass bottles, in order to detect whether there are defects such as cracks in the finished glass bottles, it is necessary to inspect the glass bottles. To improve the inspection efficiency and the accuracy of inspection results, the existing technical solutions generally use a comprehensive inspection machine to detect the cracks of glass bottles.

[0003] The structures of the comprehensive inspection machines of each manufacturer are basically the same at present. They all adopt rotating the glass bottle 1.5 circles in the star wheel disc, and during the rotation of the glass bottle, taking pictures with a camera or performing photoelectric detection on the cracks of the glass bottle.

[0004] However, the above detection methods have two obvious deficiencies: one is that only round bottles can be detected, and special-shaped bottles cannot pass through the comprehensive inspection machine; the other is that multiple bottle types cannot be mixed and inspected, only a single bottle type can be detected at a time, and the detection mechanism needs to be adjusted when switching bottle types.

[0005] Therefore, the traditional comprehensive inspection machine is not convenient enough in the detection method and cannot meet the detection requirements of multiple bottle types. Summary of the Invention

[0006] The purpose of the present invention is to provide a non-rotating glass bottle crack detection device and its detection method, aiming to solve the problems of crack detection and mixed inspection of special-shaped bottles.

[0007] On the one hand, the present invention provides a non-rotating glass bottle crack detection device, including a conveyor line. Along the conveying direction of the conveyor line, a first detection component and a second detection component are sequentially arranged above the conveyor line; the first detection component includes multiple first industrial cameras evenly distributed on a 360° circumference, and a light source module is arranged between adjacent first industrial cameras; the second detection component includes a surface light source and a second industrial camera, and multiple second industrial cameras are arranged in layers around the surface light source, and each layer of the second industrial cameras is evenly distributed on a 360° circumference. Arc-shaped light sources are arranged on both sides of the surface light source, and the position height of the arc-shaped light source is lower than the position height of the surface light source.

[0008] Preferably, the first detection component further includes a tray, and eight first industrial cameras and eight groups of light source modules are equally installed on the tray to form an annular array arranged alternately as "light source - camera - light source"; the first industrial cameras are installed obliquely downward, and the included angle β1 between the main optical axis of the first industrial camera and the horizontal plane is 10 ± 0.5°.

[0009] Preferably, the light source module includes a clamping seat installed at the bottom of the tray. Two sets of point light sources are installed obliquely upward at the lower end of the clamping seat. The angle α1 between the radiation axis of the point light source and the horizontal plane is 10 ± 0.5°. The angle λ between the radiation axis of any point light source and the projection of the main optical axis of the adjacent first industrial camera on the vertical plane is 20 ± 0.5°.

[0010] Preferably, the radiation axes of the two sets of point light sources in the same light source module are parallel to each other, and the distance L between the radiation axes is d ± 5 mm, where d is the maximum outer diameter of the bottle mouth of the glass bottle. The angle α2 between the radiation axes of the point light sources on both sides of any first industrial camera is 45 ± 0.5°.

[0011] Preferably, the second detection component further includes a detection tray, a first arc-shaped support frame, and a second arc-shaped support frame. Four sets of the first arc-shaped support frames and four sets of the second arc-shaped support frames alternately surround the outer edge of the bottom of the detection tray. Three second industrial cameras are installed on each set of the first arc-shaped support frames, and one second industrial camera is installed on each set of the second arc-shaped support frames. The sixteen second industrial cameras are divided into three layers, with four cameras arranged in the first layer, eight cameras arranged in the second layer, and four cameras arranged in the third layer.

[0012] Preferably, the second industrial cameras are all installed obliquely downward. The angle β4 between the main optical axis of the second industrial cameras in the first layer and the horizontal plane is 40 ± 0.5°. The angle β5 between the main optical axis of the second industrial cameras in the second layer and the horizontal plane is 30 ± 0.5°. The angle β3 between the main optical axis of the second industrial cameras in the third layer and the horizontal plane is 20 ± 0.5°. The main optical axes of the second industrial cameras converge at a point. The angle β2 between the projections of two adjacent second industrial cameras on each first arc-shaped support frame on the vertical plane is 10 ± 0.5°.

[0013] Preferably, the first arc-shaped support frame and the second arc-shaped support frame have the same specifications, and the centers of both are located at the intersection point of the radiation axes of all second industrial cameras.

[0014] Preferably, the crack detection device further includes a bracket. The first detection component and the second detection component are installed at the bottom of the bracket. A detection bracket is erected above the conveyor line. The bracket realizes vertical movement through a driving component provided on the detection bracket.

[0015] Preferably, the driving assembly includes screw jacks fixed at the four corners of the top of the detection bracket. Screw nuts are installed at the four corners of the top of the bracket, and the screws of the screw jacks pass through the corresponding screw nuts. The four screw jacks are paired in pairs to form a lifting unit group. Two screw jacks in each lifting unit group are connected by a coupling. A first synchronous pulley is installed at one end of one of the lifting unit groups, and a servo motor is mounted at the other end. A second synchronous pulley is installed at one end of the other lifting unit group, and the second synchronous pulley is linked with the first synchronous pulley through a synchronous belt.

[0016] On the other hand, the present invention also provides a method for detecting cracks in non-rotating glass bottles, including the following steps:

[0017] S1. According to the height of the glass bottle to be inspected, the first detection component and the second detection component are synchronously adjusted to a preset height;

[0018] S2. The first detection component is started, and the eight first industrial cameras are triggered in sequence clockwise. Each time it is triggered, the light source modules on both sides of the first industrial camera are synchronously lit. After eight photos are taken, the system will perform gray conversion on the captured images to identify the vertical crack characteristics;

[0019] S3. According to the detection results of the first detection component, the first rejection component provided on one side of the first detection component rejects the defective glass bottles, and the qualified glass bottles continue to flow to the second detection component;

[0020] S4. The glass bottle flows through the second detection component, the surface light source is lit, the four second industrial cameras on the first layer and the eight second industrial cameras on the second layer take pictures simultaneously. After the pictures are taken, the system will perform gray conversion on the captured images to identify the horizontal crack characteristics;

[0021] S5. After the second industrial cameras on the first layer and the second layer have taken pictures, the arc light source on one side of the surface light source is first lit, and the two groups of second industrial cameras on the third layer on the same side take pictures simultaneously. Then the arc light source on the other side of the surface light source is lit, and the other two groups of second industrial cameras on the third layer take pictures simultaneously. The system will perform gray conversion on the captured images to identify the vertical crack characteristics;

[0022] S6. According to the detection results of the second detection component, the second rejection component provided on one side of the second detection component rejects the defective glass bottles.

[0023] After adopting the above technical solutions, the beneficial effects of the present invention are:

[0024] Through the annular array with eight cameras and light sources arranged alternately in the first detection component and the hierarchical camera layout in the second detection component, 360° dead - angle coverage is achieved, and the full - surface detection can be completed without rotating the glass bottle, solving the limitation of the traditional star - wheel disc that depends on the self - rotation of the bottle body. Cracking defects are captured through multi - angle light paths, avoiding missed detections caused by the geometric irregularity of special - shaped bottles. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of the crack detection device for non - rotating glass bottles;

[0027] Figure 2 It is a schematic structural diagram of the first detection component;

[0028] Figure 3 It is an installation schematic diagram of the light source module;

[0029] Figure 4 It is an installation schematic diagram of the first industrial camera;

[0030] Figure 5 It is a distribution schematic diagram of the light source module;

[0031] Figure 6 It is a schematic structural diagram of the second detection component;

[0032] Figure 7 It is an installation schematic diagram of the first arc - shaped support frame;

[0033] Figure 8 It is an installation schematic diagram of the second arc - shaped support frame;

[0034] Figure 9 It is a characteristic diagram of vertical cracks;

[0035] Figure 10 It is a characteristic diagram of horizontal cracks.

[0036] Reference numerals: 1 - conveyor line, 2 - lead screw, 3 - detection bracket, 4 - lead screw lift, 5 - second synchronous pulley, 6 - bracket, 7 - synchronous belt, 8 - servo motor, 9 - first synchronous pulley, 10 - first detection assembly, 11 - second detection assembly, 12 - tray, 13 - cage, 14 - light source module, 15 - first industrial camera, 16 - point light source, 17 - clamping seat, 18 - detection tray, 19 - arc light source, 20 - surface light source, 21 - second industrial camera, 22 - first arc support frame, 23 - second arc support frame. Detailed implementation manners

[0037] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. For the purpose of making the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0038] The orientation terms appearing in the following description are all the directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In one embodiment, the present invention provides a crack detection device.

[0040] As Figure 1 shown, the crack detection device includes a conveyor line 1 for continuously transporting glass bottles and a bracket 6 located above the conveyor line 1. On one side of the input end of the conveyor line 1, a detection camera (not shown in the figure) facing the glass bottle is installed for obtaining the bottle height information of the glass bottle to be inspected. Along the conveying direction of the conveyor line 1, a first detection assembly 10 and a second detection assembly 11 are sequentially arranged at the bottom of the bracket 6. The first detection assembly 10 is used to detect the vertical cracks at the mouth of the glass bottle, and the second detection assembly 11 is used to detect the horizontal cracks at the mouth of the glass bottle and supplement the secondary detection of the vertical cracks, so as to make the detection more comprehensive. A detection bracket 3 is erected above the conveyor line 1, and the bracket 6 realizes vertical movement through a driving assembly provided on the detection bracket 3, so as to adjust the distance between the detection assembly and the glass bottle.

[0041] The driving assembly includes a screw lift 4, and four screw lifts 4 are respectively fixed at the four corners of the top of the detection bracket 3. The screws 2 of the four screw lifts 4 pass through the screw nuts at the four corners of the top of the bracket 6 to form a rigid lifting mechanism. The four screw lifts 4 are paired in pairs, and the two adjacent groups of screw lifts 4 are connected by a coupling to form a lifting group, totaling two groups. A first synchronous wheel 9 is installed at one end of one of the lifting groups, and a servo motor 8 is mounted at the other end. A second synchronous wheel 5 is installed at one end of the other lifting group, and the second synchronous wheel 5 is linked to the first synchronous wheel 9 through a synchronous belt 7. When the servo motor 8 is started, the four screw lifts 4 are lifted and lowered synchronously, thereby ensuring the stability of the bracket 6 during the lifting process.

[0042] like Figures 2 to 5 As shown, the first detection assembly 10 includes a tray 12, a light source module 14 and a first industrial camera 15. The tray 12 is fixed to the bottom of the bracket 6, providing a stable installation platform. Eight sets of light source modules 14 are evenly surrounded on the bottom inner edge of the tray 12, and eight first industrial cameras 15 are evenly surrounded on the top outer edge of the tray 12 through a retaining frame 13, forming a circular array of "light source-camera-light source" alternately arranged.

[0043] The first industrial camera 15 on the holder 13 is installed obliquely downward, facing the bottle mouth area of ​​the glass bottle, and the angle β1 between the main optical axis and the horizontal plane is set to 10±0.5°. It can ensure sufficient oblique viewing angle to reduce motion blur (conveyor line 1 continuously conveys glass bottles) and environmental reflections, and will not lose too much detail information due to excessive angles, ensuring that the details of the bottle mouth are fully captured and blind spots are avoided. In conjunction with the light source module 14, the oblique viewing angle can better utilize light, highlight defect features, and improve recognition rate.

[0044] The light source module 14 includes a clamping seat 17, which is fixed to the bottom of the tray 12. Two sets of parallel point light sources 16 are installed obliquely upward at the lower end of the clamping seat 17, and the point light sources 16 illuminate the bottle mouth area of ​​the glass bottle. The angle α1 between the radiation axis of the point light source 16 and the horizontal plane is 10±0.5°.

[0045] The low-angle incident light path formed by the angle α1 can ensure that the light hits the surface of the glass bottle at a suitable angle. For vertical cracks, low-angle light can amplify its bright line features. This is because the angle between the vertical crack and the incident direction of the light is large, causing the scattered light to be more concentrated in the crack area, thus forming a clear bright line feature in the image. At the same time, low-angle incident light can reduce the vertical collision between the light and the surface of the glass bottle, thereby reducing the impact of specular reflection and improving detection accuracy.

[0046] The included angle λ between the radiation axis of any point light source 16 and the projection of the principal optical axis of the adjacent first industrial camera 15 on the vertical plane is 20 ± 0.5°. This angle design enables the camera to effectively capture the crack morphology in the irradiation area, avoiding overexposure or shadow blind spots caused by overlapping optical paths. The included angle α2 between the radiation axes of the point light sources 16 on both sides of any first industrial camera 15 is 45 ± 0.5°, achieving seamless 360° coverage through an annular array layout. When each first industrial camera 15 is triggered, the light sources on both sides (a total of four groups of point light sources 16) are synchronously lit, forming a locally high-contrast area. The radiation axes of the two groups of point light sources 16 on the same light source module 14 are parallel, and the spacing L is d ± 5 mm (d is the maximum outer diameter of the bottle mouth), which not only avoids overexposure due to overlapping light but also eliminates the edge dark area.

[0047] As Figures 6 to 8 shown, the second detection component 11 includes a detection tray 18, a second industrial camera 21, a first arc-shaped support frame 22, and a second arc-shaped support frame 23. A surface light source 20 is hoisted at the center of the bottom of the detection tray 18, and a group of arc-shaped light sources 19 are hoisted on each side of the surface light source 20. The position height of the arc-shaped light sources 19 is lower than that of the surface light source 20. The surface light source 20 vertically irradiates the top area of the bottle mouth, and the arc-shaped light sources 19 horizontally irradiate the side area of the bottle mouth. There are a total of sixteen second industrial cameras 21, and both the first arc-shaped support frame 22 and the second arc-shaped support frame 23 have four groups. The four groups of the first arc-shaped support frames 22 and the four groups of the second arc-shaped support frames 23 are evenly and alternately arranged around the outer edge of the bottom of the detection tray 18, forming an annular array. This arrangement ensures that the camera can take pictures of the glass bottle from multiple angles, thus capturing more detailed information.

[0048] The sixteen second industrial cameras 21 are arranged in a three-layer structure with a vertical arrangement, and the cameras in each layer maintain the same height to ensure the consistency of the captured images. In the first layer, four second industrial cameras 21 are respectively installed at the uppermost ends of the four groups of the first arc-shaped support frames 22. In the second layer, one second industrial camera 21 is installed at the middle position of each group of the first arc-shaped support frames 22 and the second arc-shaped support frames 23, totaling eight. In the third layer, four second industrial cameras 21 are respectively installed at the lowermost ends of the four groups of the first arc-shaped support frames 22. These sixteen second industrial cameras 21 are arranged in an alternating pattern of "3-1-3" in terms of quantity, forming an efficient and precise annular camera array.

[0049] All the second industrial cameras 21 are installed obliquely downward, aiming at the bottle mouth area. The angle β4 between the main optical axis of the second industrial cameras 21 on the first layer and the horizontal plane is 40 ± 0.5°, the angle β5 between the main optical axis of the second industrial cameras 21 on the second layer and the horizontal plane is 30 ± 0.5°, and the angle β3 between the main optical axis of the second industrial cameras 21 on the third layer and the horizontal plane is 20 ± 0.5°. The main optical axes of all the second industrial cameras 21 converge at a point in the bottle mouth area, forming a stereoscopic imaging focus. Combining with multi-view image fusion technology (such as 3D point cloud reconstruction), the crack depth and spatial distribution can be accurately located.

[0050] The projection angle β2 between two adjacent second industrial cameras 21 on the first arc-shaped support frame 22 in the vertical plane is 10 ± 0.5°. Through precise angle control, seamless splicing is achieved, and the detection blind area is eliminated. The first arc-shaped support frame 22 and the second arc-shaped support frame 23 have the same specifications, and the centers of both are located at the intersection point of the radiation axes of the second industrial cameras 21. This design can ensure the geometric symmetry between the second industrial cameras 21 and the light source, avoiding field of view deviation or image distortion caused by mechanical installation deviation. It can also adapt to the curved surface characteristics of the glass bottle and improve the imaging uniformity.

[0051] In another embodiment, based on the above crack detection device, the present invention provides a method for detecting cracks in non-rotating glass bottles.

[0052] S1. Height adjustment

[0053] The installation positions and angles of all cameras and light sources are fixed and do not need to be adjusted. Through the real-time feedback of the detection cameras, the servo motor 8 is started to drive the four screw jacks 4 to lift and lower synchronously, and the first detection component 10 and the second detection component 11 below the bracket 6 are automatically adjusted to the preset height.

[0054] This step ensures that the cameras and light sources can take pictures and illuminate the glass bottle at the most appropriate distance, thereby improving the accuracy and reliability of the detection.

[0055] S2. Vertical crack detection

[0056] The glass bottles on the conveyor line 1 are sent to the first detection component 10. When the sensor below the first detection component 10 detects a glass bottle, one of the first industrial cameras 15 is triggered to take a picture, and the light source modules 14 on both sides are linked to the camera shutter and are synchronously lit. Every time the glass bottle advances 2 mm, the subsequent first industrial cameras 15 take pictures in sequence in the clockwise or counterclockwise order. After the shooting is completed, the system converts the original RGB image into a grayscale image, and determines the vertical crack characteristics through feature extraction. If multiple cameras take pictures simultaneously, adjacent light sources may form cross shadows or reflection interference on the bottle body surface due to angle overlap, covering up fine cracks.

[0057] Such as Figure 9As shown, vertical cracks form obvious long and narrow bright line features in the image.

[0058] S3. First rejection of defective products

[0059] According to the detection results of the first detection component 10, the first rejection component arranged on one side of the first detection component 10 rejects the defective glass bottles, and the qualified glass bottles continue to flow to the second detection component 11.

[0060] S4. Detection of horizontal cracks

[0061] When the sensor below the second detection component 11 detects a glass bottle, the surface light source 20 is lit, and the four second industrial cameras 21 on the first layer and the eight second industrial cameras 21 on the second layer take pictures simultaneously. After the shooting is completed, the system converts the original RGB image into a grayscale image, and determines the horizontal crack features through feature extraction.

[0062] As Figure 10 shown, horizontal cracks form obvious long and narrow bright line features in the image.

[0063] S5. Second detection of vertical cracks

[0064] After the second industrial cameras 21 on the first layer and the second layer have finished taking pictures, and the glass bottle has advanced 10 mm, the arc light source 19 on the left side of the surface light source 20 is first lit, and the two groups of second industrial cameras 21 in the third layer (on the same side as the lit arc light source 19) take pictures simultaneously. After the glass bottle advances another 10 mm, the arc light source 19 on the right side of the surface light source 20 is then lit, and the other two groups of second industrial cameras 21 in the third layer take pictures simultaneously. The system will perform grayscale conversion on the captured images to identify vertical crack features. The horizontal crack detection uses the surface light source 20 for uniform illumination, while the vertical cracks rely on the lateral supplementary light of the arc light source 19. If the left and right arc light sources 19 are lit simultaneously, cross reflection or shadow overlap may occur due to angle differences, covering up the subtle crack features.

[0065] S6. Second rejection of defective products

[0066] According to the detection results of the second detection component 11, the second rejection component arranged on one side of the second detection component 11 rejects the defective glass bottles.

[0067] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor limit the invention to only the specific embodiments. Obviously, according to the above description, many modifications and variations can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and its modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A non-rotating glass bottle crack detection device, comprising a conveyor line (1), characterized in that: Along the conveying direction of the conveyor line (1), a first detection component (10) and a second detection component (11) are successively arranged above the conveyor line (1); the first detection component (10) includes a plurality of first industrial cameras (15) evenly distributed on a 360° circumference, and a light source module (14) is arranged between adjacent first industrial cameras (15); the second detection component (11) includes a surface light source (20) and a second industrial camera (21), and a plurality of second industrial cameras (21) are arranged in layers around the surface light source (20), and each layer of the second industrial cameras (21) is evenly distributed on a 360° circumference. Arc-shaped light sources (19) are arranged on both sides of the surface light source (20), and the position height of the arc-shaped light sources (19) is lower than the position height of the surface light source (20); the second detection component (11) further includes a detection tray (18), a first arc-shaped support frame (22) and a second arc-shaped support frame (23). Four groups of the first arc-shaped support frames (22) and four groups of the second arc-shaped support frames (23) alternately surround the outer edge of the bottom of the detection tray (18); three second industrial cameras (21) are installed on each group of the first arc-shaped support frames (22), and one second industrial camera (21) is installed on each group of the second arc-shaped support frames (23). The sixteen second industrial cameras (21) are divided into three layers, with four arranged in the first layer, eight arranged in the second layer, and four arranged in the third layer; the second industrial cameras (21) are all installed obliquely downward. The angle β4 between the main optical axis of the second industrial cameras (21) in the first layer and the horizontal plane is 40 ± 0.5°, the angle β5 between the main optical axis of the second industrial cameras (21) in the second layer and the horizontal plane is 30 ± 0.5°, and the angle β3 between the main optical axis of the second industrial cameras (21) in the third layer and the horizontal plane is 20 ± 0.5°; the main optical axes of all the second industrial cameras (21) converge at a point, and the projection angle β2 between two adjacent second industrial cameras (21) on the vertical plane on each first arc-shaped support frame (22) is 10 ± 0.5°.

2. The crack detection device for non-rotating glass bottles according to claim 1, wherein: The first detection component (10) further includes a tray (12), and eight first industrial cameras (15) and eight groups of light source modules (14) are equally installed on the tray (12) to form an annular array with an alternating arrangement of "light source - camera - light source"; the first industrial cameras (15) are installed obliquely downward, and the angle β1 between the main optical axis of the first industrial cameras (15) and the horizontal plane is 10 ± 0.5°.

3. The non-rotating glass bottle crack detection device according to claim 2, wherein: The light source module (14) includes a clamping seat (17), the clamping seat (17) is installed at the bottom of the tray (12), and two groups of point light sources (16) are installed obliquely upward at the lower end of the clamping seat (17). The angle α1 between the radiation axis of the point light sources (16) and the horizontal plane is 10 ± 0.5°, and the projection angle λ between the radiation axis of any point light source (16) and the main optical axis of the adjacent first industrial camera (15) on the vertical plane is 20 ± 0.5°.

4. The non-rotating glass bottle crack detection device according to claim 3, characterized in that: The radiation axes of two sets of point light sources (16) of the same light source module (14) are parallel to each other, and the distance L between the radiation axes is d ± 5 mm, where d is the maximum outer diameter of the glass bottle mouth. The included angle α2 between the radiation axes of the point light sources (16) on both sides of any first industrial camera (15) is 45 ± 0.5°.

5. The non-rotating glass bottle crack detection device according to claim 1, wherein: The crack detection device further includes a bracket (6). The first detection component (10) and the second detection component (11) are installed at the bottom of the bracket (6). A detection bracket (3) is erected above the conveyor line (1). The bracket (6) realizes vertical movement through a driving component provided on the detection bracket (3).

6. The non-rotating glass bottle crack detection device according to claim 5, characterized in that: The driving component includes screw jacks (4) fixed at the four corners of the top of the detection bracket (3). Screw nuts are installed at the four corners of the top of the bracket (6). The screws (2) of the screw jacks (4) pass through the corresponding screw nuts. The four screw jacks (4) are paired in two, forming a lifting unit group. The two screw jacks (4) in each lifting unit group are connected by a coupling. A first synchronous pulley (9) is installed at one end of one of the lifting unit groups, and a servo motor (8) is erected at the other end. A second synchronous pulley (5) is installed at one end of the other lifting unit group. The second synchronous pulley (5) is linked with the first synchronous pulley (9) through a synchronous belt (7).

7. A method for detecting cracks in non-rotating glass bottles, characterized in that: The non-rotating glass bottle crack detection method is based on the non-rotating glass bottle crack detection device according to any one of claims 2-4, and includes the following steps: S1. According to the height of the glass bottle to be inspected, the first detection component (10) and the second detection component (11) are synchronously adjusted to a preset height. S2. The first detection component (10) is started, and the eight first industrial cameras (15) are triggered in sequence clockwise. Each time it is triggered, the light source modules (14) on both sides of the first industrial camera (15) are synchronously lit. After eight photos are taken, the system will perform gray-scale conversion on the captured images to identify the vertical crack features. S3. According to the detection result of the first detection component (10), the first rejection component provided on one side of the first detection component (10) rejects the defective glass bottles, and the qualified glass bottles continue to flow to the second detection component (11). S4. The glass bottle flows through the second detection component (11), the surface light source (20) is lit, the four second industrial cameras (21) on the first layer and the eight second industrial cameras (21) on the second layer take pictures simultaneously. After the pictures are taken, the system will perform gray-scale conversion on the captured images to identify the horizontal crack features. S5. After the second industrial cameras (21) on the first layer and the second layer have taken pictures, the arc light source (19) on one side of the surface light source (20) is first lit, and the two groups of second industrial cameras (21) on the third layer on the same side take pictures simultaneously. Then the arc light source (19) on the other side of the surface light source (20) is lit, and the other two groups of second industrial cameras (21) on the third layer take pictures simultaneously. The system will perform gray-scale conversion on the captured images to identify the vertical crack features. S6. According to the detection result of the second detection component (11), the second rejection component provided on one side of the second detection component (11) rejects the defective glass bottles.

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