Glass wine bottle body defect optical detection equipment and detection method

Abstract

The invention relates to the technical field of glass bottle defect detection, and particularly discloses glass wine bottle body defect optical detection equipment and detection method.The optical detection equipment comprises a conveying belt, and a clamping mechanism, a lifting rotating mechanism, a detection mechanism and a sorting mechanism are sequentially arranged on the conveying belt from the feeding end to the discharging end. The detection end of the detection mechanism is attached to the bottle body of the glass wine bottle for optical detection, the receiving end of the detection mechanism receives the light in the glass wine bottle, the light directly reaches the receiving end in the bottle after passing through a bottle body material, and a signal path is relatively fixed, so that the interference of ambient light or reflection of surrounding objects on an optical signal can be effectively reduced. The bottle body of the glass bottle has a certain thickness, deviation of light scattering and refraction is easy to occur when light passes through the thickness of the glass in traditional external detection, the error can be reduced by matching of an external detection end and an internal receiving end, fine defects such as bubbles, cracks or tiny scratches are helped to be captured, and the detection stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of glass bottle defect detection, and in particular to an optical detection device and method for glass wine bottle body defects. Background Art

[0002] As a traditional packaging material, glass bottles are widely used in food, medicine, cosmetics and other industries due to their excellent sealing, transparency and chemical stability. In wine packaging, glass bottles are particularly popular, which can not only maintain the original flavor of wine products, but also play a role in aesthetic decoration. Glass bottles have the characteristics of high hardness, corrosion resistance and non-deformation, which are suitable for storing and transporting various wines, so they are widely used in the wine market.

[0003] The production process of glass wine bottles includes multiple steps such as batching, melting, molding, annealing, and inspection. During the molding and annealing process, due to temperature control, mold wear, glass liquid fluidity and other reasons, defects such as bubbles, cracks, and uneven thickness may appear on the bottle body. These defects not only affect the appearance of the glass wine bottle, but may also affect its physical properties, such as compressive strength and impact resistance. Therefore, in order to screen and remove defective glass wine bottles and ensure the quality and safety of the product, the bottle body of the glass wine bottle must be strictly inspected. Traditional detection methods mostly use manual visual inspection, simple mechanical inspection, ultrasonic inspection or optical-based detection methods, but these methods have certain limitations in accuracy and detection efficiency.

[0004] When inspecting the body of a glass wine bottle, especially a thicker glass wine bottle: manual visual inspection is limited by human vision, experience and concentration, and it is often difficult to detect tiny cracks, bubbles or internal defects. The curved reflection of thick glass bottles makes inspection more difficult. Mechanical inspection relies on physical contact sensors to detect surface defects, and is usually unable to effectively detect deep defects such as bubbles and cracks inside the glass bottle; Ultrasonic testing in thick glass bottles, especially in the curved connection area of ​​the bottle body, is often interfered by multiple reflections and scattering, resulting in blurred signals and inability to accurately locate small defects. In addition, ultrasonic testing usually requires contact with the medium to transmit the signal, and the medium is easily affected by interference in the curved area; Optical detection sets the light source and receiver outside the bottle body, and it is usually difficult to obtain a clear image of the curved surface inside the bottle, especially at the connection between the bottle body and the bottle mouth. The curved surface of the glass will cause light reflection, refraction, and signal scattering, and the detected light signal is easily distorted, resulting in missed detection or false detection. At the same time, the light transmission path of the thick bottle wall is long, resulting in signal attenuation and increased interference of small material inhomogeneities on detection, affecting the effect of optical detection.

[0005] In addition, when defects are detected in the body of a glass wine bottle, thick glass wine bottles often face multiple challenges during the crushing process. Due to the thickness of the bottle body, crushing often requires high external force and energy consumption, resulting in low processing efficiency. At the same time, traditional crushing methods are difficult to effectively control the expansion path of the cracks, resulting in uneven shapes and sizes of fragments, affecting the quality of recycling and subsequent processing. Moreover, irregular breaking methods may cause fragments to splash, increase equipment loss, and pose a threat to the safety of operators.

[0006] In summary, it is necessary to improve the inspection equipment for glass wine bottles in order to achieve more accurate inspection of glass wine bottles and improve the recycling quality of defective wine bottles. Summary of the invention

[0007] In order to improve the detection accuracy of glass wine bottles and improve the recycling quality of defective wine bottles, the present application provides an optical detection device and a detection method for glass wine bottle body defects.

[0008] The present application provides an optical inspection device for defects in glass wine bottles, which adopts the following technical solution: An optical inspection device for defects in glass wine bottles comprises a conveyor belt, on which the following components are arranged in sequence from a feeding end to a feeding end: A clamping mechanism is used to clamp and fix the glass wine bottles transmitted on the conveyor belt; A lifting and rotating mechanism and a first detection mechanism, wherein the lifting and rotating mechanism and the first detection mechanism are located directly above the clamping mechanism, the first detection mechanism is installed on the lifting and rotating mechanism and is used to perform defect detection on the body of the glass wine bottle, and the lifting and rotating mechanism is used to drive the first detection mechanism to lift and rotate in a direction close to or away from the upper surface of the conveyor belt; The lifting and rotating mechanism is provided with a plurality of groups of cutting knives at even intervals corresponding to the circumference of the glass wine bottle body, and a plurality of groups are provided at even intervals along the length direction of the glass wine bottle, and a first reset member for driving the side of the cutting knife to face the glass bottle body is provided on the rotating shaft of each cutting knife, and a plurality of groups of rotating components for driving the knife head of the cutting knife to rotate to abut against the glass wine bottle body are also provided on the lifting and rotating mechanism; The clamping mechanism is provided with a second detection mechanism, and the second detection mechanism is used to detect the bottle body portion of the glass wine bottle facing the clamping mechanism; The sorting mechanism is used to separately collect the defective glass wine bottles and the non-defective glass wine bottles detected by the first detection mechanism.

[0009] By adopting the above technical solution, when it is necessary to inspect the glass wine bottles, the conveyor belt is started, and the glass wine bottles to be inspected are placed on the conveyor belt in sequence, and the conveyor belt conveys the glass wine bottles to the position where the clamping mechanism is located in sequence, and the conveyor belt stops transmitting at this time; The clamping mechanism clamps and fixes the glass bottle facing it, and the lifting and rotating mechanism drives the detection mechanism to descend. The detection end of the detection mechanism will be attached to the body of the glass bottle for optical detection, while the receiving end is received inside the glass bottle. Since the light directly reaches the receiving end inside the bottle after passing through the bottle body material, the signal path is relatively fixed, which can effectively reduce the interference of ambient light or reflection of surrounding objects on the light signal. The body of the glass bottle has a certain thickness. When the light passes through the thickness of the glass, the traditional external detection is prone to deviations in light scattering and refraction. The cooperation between the external detection end and the internal receiving end can reduce this error, help capture subtle defects such as bubbles, cracks or tiny scratches, and improve the stability of detection.

[0010] When defects are detected in glass bottles, since they are thicker glass bottles, if there are defects, they need to be remelted and re-produced. The first step is to crush the defective glass bottles. At this time, driven by the rotating assembly, the cutter head rotates to abut against the glass bottle. Under the rotation of the lifting and rotating mechanism, multiple cutters cut annular cutting marks on the surface of the glass bottle, which is convenient for subsequent crushing according to the predetermined cutting marks, avoiding irregular cracks in the glass bottle during the crushing process. This kind of cutting can more easily control the size and shape of the fragments, reduce unplanned cracks, reduce safety hazards in the crushing process, reduce sharp edges after crushing, and improve recycling safety.

[0011] Optionally, the first detection mechanism includes a mounting tube, an elastic telescopic member, a light emitting assembly, and a light receiving assembly, wherein the mounting tube is mounted below the lifting and rotating mechanism, one end of the mounting tube is open and is arranged facing the conveyor belt, and the elastic telescopic member is mounted on the inner wall of the mounting tube close to the bottom and is arranged in multiple groups; The optical emitting components and the optical receiving components are provided with multiple groups corresponding to the elastic telescopic parts, and each optical emitting component is installed at an end of the corresponding elastic telescopic part away from the mounting tube. The optical emitting components are arranged in the mounting tube and correspond to each optical emitting component one by one.

[0012] By adopting the above technical solution, when the detection mechanism descends driven by the lifting and rotating mechanism, the installation cylinder will gradually cover the glass bottle directly below. During this process, the elastic telescopic part will elastically abut the light emitting component against the outer surface of the glass bottle, so that the light emitting component can directly transmit the emitted light through the glass bottle. The light after passing through the glass bottle will be directly received by the light receiving component. The signal transmission path is short, the response is faster, and the defect information transmission efficiency is higher. Compared with the traditional external detection reflection sampling method, this direct penetration method can quickly locate the location of the defect, which is particularly suitable for the bottle body detection needs of high-speed production lines.

[0013] Optionally, the light emitting assembly includes a connecting rod, a roller and a first laser diode, one end of the connecting rod is ball-jointed with the end of the elastic telescopic member, and a second reset member for resetting the connecting rod to be in the same direction as the elastic telescopic member is provided at the hinge, and two rollers are provided, and the two rollers are rotatably mounted at the other end of the connecting rod at an interval; The elastic telescopic member can drive the two rollers to elastically abut against the body of the glass wine bottle to be detected, and the angles of the two rollers can be adjusted according to the contour of the body of the glass wine bottle.

[0014] By adopting the above technical scheme, when the mounting tube covers the glass bottle, the elastic telescopic part will elastically compress the connecting rod, so that the connecting rod drives the two rollers to abut against the outer surface of the glass bottle. As the mounting tube continues to descend, the two rollers are always in abutment with the surface of the glass bottle. Therefore, the first laser diode can always emit a laser beam close to the glass bottle. Even if it encounters a curved surface of the glass bottle, the connection between the connecting rod and the elastic telescopic part will rotate, so that the two rollers always keep in abutment with the outer surface of the glass bottle, so that the laser beam emitted by the first laser diode can always be emitted at a facing and close angle, the optical path is fixed, the angle change is reduced, and the beam divergence or energy loss caused by long-distance emission is avoided, thereby ensuring the detection accuracy. The laser beam emission close to the bottle body can minimize the light scattering interference caused by the curved surface shape, curvature change or bottle body tilt, enhance the sensitivity to defects, and thus improve the detection accuracy of defects.

[0015] Optionally, the light receiving component includes a mounting rod and a plurality of photosensitive diode arrays arranged at the end of the mounting rod, one end of the mounting rod is fixed to the inner wall of the mounting tube, the photosensitive diode array is arranged to be a spherical surface, and each photosensitive diode is fixed to the other end of the mounting rod and is opposite to the corresponding laser diode.

[0016] By adopting the above technical solution, when the laser diode emits laser light through the glass bottle, the spherical photodiode array can receive the laser beam from almost any direction. Even if the laser incident angle changes, it can effectively capture the signal, reduce the detection blind area, and improve the accuracy of the detection results.

[0017] Optionally, the clamping mechanism includes a first electric telescopic rod and a clamping sleeve. The clamping mechanism is correspondingly provided with two groups, and the two groups of clamping mechanisms are respectively located on both sides of the conveyor belt. The clamping sleeve is fixed to the telescopic end of the first electric telescopic rod, and can clamp and fix the bottle body of the glass wine bottle respectively under the drive of the first electric telescopic rod.

[0018] By adopting the above technical solution, when the glass wine bottle moves to the position of the first electric telescopic rod, the conveyor belt stops conveying. At this time, the two first electric telescopic rods are extended, so that the two jackets clamp and fix the bottle body of the glass wine bottle near the bottom, which is convenient for subsequent defect detection.

[0019] Optionally, the second detection mechanism includes a plurality of second laser diodes disposed in the jacket, each of the second laser diodes corresponds to the corresponding photosensitive diode array, and the emitted laser can be received by the corresponding photosensitive diode array.

[0020] By adopting the above technical solution, the lifting and rotating mechanism first drives the first laser diode to rotate and descend along the body of the glass bottle. At this time, the jacket abuts against the body of the glass bottle to fix the glass bottle, thereby completing the detection of the body of the glass bottle.

[0021] After the inspection of the glass bottle body is completed, since the jacket blocks part of the glass bottle body, the first electric telescopic rod contracts, the jacket separates from the glass bottle body, and the lifting and rotating mechanism drives the roller to rotate. The elastic telescopic part makes the roller elastically abut against the surface of the glass bottle body. At this time, the roller drives the glass bottle to rotate together. During the rotation process, multiple second laser diodes perform defect inspection on the glass bottle body blocked by the jacket and at the same height. The laser emitted by the second laser diode can be received by the corresponding photosensitive diode array, so as to realize defect detection of the blocked part of the bottle body.

[0022] Optionally, the rotating assembly includes a driving member, a winding roller, a winding wheel and a pull rope, the driving member is arranged in the installation cylinder, the winding roller is coaxially fixed on the output end of the driving member, the winding wheel is arranged on the inner wall of the installation cylinder at intervals and is located between the driving member and the side of the cutting knife away from the knife head, one end of the pulling rope is fixed to the side of the cutting knife away from the knife head, and the other end is wound on the winding roller after passing through the winding wheel; When a defect is detected in the glass wine bottle, the driving member drives the blade head of the cutting knife to abut against the body of the glass wine bottle through the pull rope.

[0023] By adopting the above technical solution, when a defect is detected in the glass wine bottle, the driving member starts to work, driving the winding roller to rotate, and the winding roller pulls the pull rope, so that the blade head of the cutting knife rotates to abut against the body of the glass wine bottle, thereby achieving pre-cutting of the surface of the glass wine bottle.

[0024] Optionally, the cutting knife is provided with a cutting auxiliary air duct and a cleaning air duct respectively, an auxiliary air outlet is provided at one end of the cutting auxiliary air duct, the auxiliary air outlet is located near the blade head of the cutting knife, and a plurality of air duct openings are provided on the cleaning air duct, and each of the air duct openings is evenly and spaced apart along the side of the cutting knife; The end of the cutting knife away from the cutter head is provided with a cooling air pipe, the cooling air pipe is connected to an external cooling air system, and the end of the cutting knife away from the cutter head is also provided with a switching component, the switching component is transmission-connected to the end of the pull rope away from the winding roller; When the side of the cutting knife is facing the glass wine bottle, the cold air pipe is connected with the cleaning air duct through the switching component; when the blade head of the cutting knife is in contact with the body of the glass wine bottle, the cold air pipe is connected with the cutting auxiliary air duct through the switching component; two auxiliary air outlets are provided, and the two auxiliary air outlets are respectively located on both sides of the blade head of the cutting knife.

[0025] By adopting the above technical solution, when the inspection is completed and no defects are detected on the glass wine bottle body, the cold air pipe is connected to the cleaning air duct, and the cold air is ejected from each air duct opening through the cleaning air duct. The multiple cleaning air ducts on the multiple cutting knives work at the same time, thereby evenly cleaning the entire surface of the glass wine bottle, making the surface of the glass wine bottle cleaner, and subsequent labeling operations on the edge; When a defect is detected on the body of the glass wine bottle, the cold air pipe and the cutting auxiliary air duct are connected, and then the auxiliary air outlet sprays cold air at the head of the cutting knife. The cold air jet passes through the rapid cooling of the two sides of the area, forming a temperature gradient relative to the cutting line. This temperature difference guides the thermal stress to concentrate on the cutting line, thereby effectively reducing the cutting force, reducing unnecessary glass surface cracks or deformation caused by thermal expansion, and avoiding the expansion of cracks outside the cutting line. In addition, cooling on both sides can also reduce the local heat accumulation of the glass near the cutting point, reduce the adhesion of the glass material due to local softening during the cutting process, and ensure a smoother cutting line. The symmetry of the cooling arrangement on both sides improves the uniformity of stress on the glass, avoids unexpected breakage or deformation caused by imbalance of thermal stress of the entire glass, and optimizes subsequent operations such as directional crushing and processing of glass bottles, further improving cutting accuracy and durability of cutting tools, and reducing overall production failure rate and loss rate.

[0026] Optionally, the switching assembly includes a rotating wheel and a third reset member, the rotating wheel is provided with a connecting air duct, one end of the connecting air duct is connected to the cold air pipe, and the other end can be connected to the cutting auxiliary air duct or the cleaning air duct; The end of the cutting knife away from the blade head is provided with a slot for the rotating wheel to rotate and engage, a limiting structure is provided between the rotating wheel and the inner wall of the slot, and the end of the pull rope away from the winding roller is fixedly connected to the surface of the rotating wheel; When the pull rope pulls the rotating wheel to rotate, the rotating wheel first rotates to the connecting air duct and the cold air pipe under the limit of the limit structure, and then drives the cutting knife to rotate together; The third reset member is installed between the rotating wheel and the inner wall of the clamping slot, and is used to drive the connecting air duct on the rotating wheel to reset to communicate with the cleaning air duct.

[0027] By adopting the above technical solution, when defects are detected on the surface of the glass wine bottle, the driving part pulls the pull rope to make the rotating wheel rotate alone first, so that the connecting air duct is converted from being connected with the cleaning air duct to being connected with the cutting auxiliary air duct. At this time, the rotating wheel drives the cutting knife to rotate together. When the blade head of the cutting knife rotates to abut against the body of the glass wine bottle, the cutting auxiliary air duct can just be sprayed out from the auxiliary air outlet, thereby achieving auxiliary cooperation with the cutting and realizing better cutting.

[0028] The present application also provides a method for optically detecting defects on glass wine bottles, which uses the above-mentioned optical detection device for detecting defects on glass wine bottles, and comprises the following steps: S1: Start the conveyor belt, place the glass bottles to be tested on the conveyor belt one by one, and the conveyor belt conveys the glass bottles to the position of the clamping mechanism one by one, and then stops the conveyor belt; S2: The clamping mechanism clamps and fixes the glass wine bottle, and the lifting and rotating mechanism drives the installation cylinder to rotate and descend. At this time, the light emitting component emits a laser beam to detect defects on the body of the glass wine bottle. When the installation cylinder completely covers the glass wine bottle, the lifting and rotating mechanism stops descending, and the light emitting component stops detecting the body of the glass wine bottle. S3: The clamping mechanism releases the clamping fixation on the glass wine bottle body, and the lifting and rotating mechanism drives the installation cylinder to continue to rotate. At this time, the second detection mechanism performs defect detection on the blocked part of the glass wine bottle body. After the lifting and rotating mechanism drives the installation cylinder to rotate one circle, the clamping mechanism clamps and fixes the glass wine bottle body again; S4: The lifting and rotating mechanism drives the installation cylinder to rise and drives the installation cylinder to rotate at the same time: when no defects are detected on the glass wine bottle body, the cold air pipe cleans the glass wine bottle body evenly through various cleaning air ducts; when defects are detected on the glass wine bottle body, the driving member drives the cutter head to rotate to abut against the glass wine bottle body, and the cold air pipe blows out cold air along both sides of the cutting position through two auxiliary air outlets, and the auxiliary cutting knife evenly draws annular cutting marks at different heights on the glass wine bottle body; S5: The clamping mechanism releases the glass wine bottle, and the conveyor belt continues to drive the inspected glass wine bottle to move. When it reaches the sorting mechanism, the sorting mechanism unloads the glass wine bottle to the corresponding collection point.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the installation tube covers the glass bottle, the elastic telescopic member will elastically compress the connecting rod, so that the connecting rod drives the two rollers to abut against the outer surface of the glass bottle. As the installation tube continues to descend, the two rollers always abut against the surface of the glass bottle. Therefore, the laser diode can always emit the laser beam close to the glass bottle. Even if it encounters a curved surface of the glass bottle, the connection between the connecting rod and the elastic telescopic member will rotate, so that the two rollers always keep abutting against the outer surface of the glass bottle, so that the laser beam emitted by the laser diode can always be emitted at a facing and close angle. The optical path is fixed, the angle change is reduced, and the beam divergence or energy loss caused by long-distance emission is avoided, thereby ensuring the detection accuracy. The laser beam emission close to the bottle body can minimize the light scattering interference caused by the curved surface shape, curvature change or bottle body tilt, enhance the sensitivity to defects, and thus improve the detection accuracy of defects; 2. When defects are detected in the glass wine bottle, since it is for thicker glass wine bottles, if there are defects, they need to be returned to the furnace for re-production. The first step is to crush the defective glass wine bottle. At this time, driven by the rotating component, the cutter head rotates to abut against the glass wine bottle. Under the rotation of the lifting and rotating mechanism, multiple cutters cut annular cutting marks on the surface of the glass wine bottle, which is convenient for subsequent crushing according to the predetermined cutting marks, avoiding irregular cracks in the glass bottle during the crushing process; this kind of cutting can more easily control the size and shape of the fragments, reduce unplanned cracks, reduce safety hazards in the crushing process, reduce sharp edges after crushing, and improve recycling safety; 3. When the inspection is completed and no defects are detected on the glass bottle body, the cold air pipe is connected to the cleaning air duct, and the cold air is ejected from each air duct opening through the cleaning air duct. The multiple cleaning air ducts on the multiple cutting knives work at the same time, thereby evenly cleaning the entire surface of the glass bottle, making the surface of the glass bottle cleaner, and the subsequent labeling and other operations on the edge; 4. The cold air jet quickly cools down the areas on both sides to form a temperature gradient relative to the cutting line. This temperature difference guides the thermal stress to concentrate on the cutting line, thereby effectively reducing the cutting force, reducing unnecessary glass surface cracks or deformation caused by thermal expansion, and avoiding the expansion of cracks outside the cutting line. In addition, cooling on both sides can also reduce the local heat accumulation of the glass near the cutting point, reduce the adhesion of the glass material due to local softening during the cutting process, and ensure a smoother cutting line. The symmetry of the cooling arrangement on both sides improves the uniformity of the force on the glass, avoids unexpected breakage or deformation caused by the imbalance of the overall thermal stress of the glass, and optimizes subsequent operations such as directional crushing and processing of glass bottles, further improving the cutting accuracy and the durability of the cutting tool, and reducing the overall production failure rate and loss rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a schematic diagram of the overall structure of the optical detection device in the embodiment of the present application; Figure 2 yes Figure 1 The structural diagram of the middle lifting and rotating mechanism; Figure 3 yes Figure 2 Schematic diagram of the internal structure of the testing agency; Figure 4 yes Figure 3 A schematic diagram of part of the structure of the optical transmission component; Figure 5 yes Figure 3 Schematic diagram of the structure at the middle cutting knife; Figure 6 yes Figure 5 Schematic diagram of the internal structure of the cutting knife; Figure 7 yes Figure 6 Cross-sectional view of the middle cutting knife.

[0032] Reference numerals: 1, conveyor belt; 11, second detection mechanism; 111, second laser diode; 2, clamping mechanism; 21, first electric telescopic rod; 22, jacket; 3, lifting and rotating mechanism; 31, mounting frame; 32, hydraulic cylinder; 33, reduction motor; 34, driving gear; 35, driven gear; 4, detection mechanism; 41, mounting cylinder; 42, elastic telescopic member; 43, light emitting assembly; 431, connecting rod; 432, roller; 433, laser diode; 44. Light receiving component; 441. Mounting rod; 442. Photodiode array; 5. Cutting knife; 51. Cutting auxiliary air duct; 511. Auxiliary air outlet; 52. Cleaning air duct; 521. Air duct outlet; 6. Rotating component; 61. Driving member; 62. Winding wheel; 63. Pull rope; 7. Cold air pipe; 8. Rotating wheel; 81. Connecting air duct; 9. Sorting mechanism; 91. Second electric telescopic rod; 92. Push plate; 93. Qualified product collection frame; 94. Defective product collection frame. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 , further details of this application are given.

[0034] The embodiment of the present application discloses an optical inspection device for defects on a glass wine bottle.

[0035] Reference Figure 1 , Figure 2 and Figure 3 , an optical inspection device for defects in glass wine bottles, comprising a conveyor belt 1, on which the following are arranged in sequence from a feeding end to a lower feeding end: The clamping mechanism 2 is used to clamp and fix the glass wine bottles transported on the conveyor belt 1; The lifting and rotating mechanism 3 and the first detection mechanism 4 are located directly above the clamping mechanism 2. The first detection mechanism 4 is installed on the lifting and rotating mechanism 3. The lifting and rotating mechanism 3 is used to drive the first detection mechanism 4 to lift and rotate in a direction close to or away from the upper surface of the conveyor belt 1; The sorting mechanism 9 is used to separately collect the defective glass bottles and the non-defective glass bottles detected by the first detecting mechanism 4.

[0036] Reference Figure 1 and Figure 2 The clamping mechanism 2 includes a first electric telescopic rod 21 and a clamping sleeve 22. Two groups of clamping mechanisms 2 are correspondingly arranged. The two groups of clamping mechanisms 2 are respectively located on both sides of the conveyor belt 1. The clamping sleeve 22 is fixed to the telescopic end of the first electric telescopic rod 21, and can clamp and fix the bottle body of the glass wine bottle respectively under the drive of the first electric telescopic rod 21.

[0037] The clamping mechanism 2 is provided with a second detection mechanism 11 , which is used to detect the bottle body portion of the glass wine bottle facing the clamping mechanism 2 .

[0038] Reference Figure 1 and Figure 2 The lifting and rotating mechanism 3 includes a mounting frame 31, a hydraulic cylinder 32, a mounting block, a reduction motor 33, a driving gear 34 and a driven gear 35. The mounting frame 31 is mounted on the fixed part of the conveyor belt 1 and is located directly above the clamping mechanism 2. The hydraulic cylinder 32 is mounted on the top of the mounting frame 31, and the telescopic end of the hydraulic cylinder 32 is set toward the conveyor belt 1. The mounting block is fixed to the telescopic end of the hydraulic cylinder 32. The reduction motor 33 is mounted on the mounting block. The driving gear 34 is coaxially fixed on the output shaft of the reduction motor 33. The driven gear 35 is rotatably mounted on the mounting block and is fixedly connected to the first detection mechanism 4. The driving gear 34 and the driven gear 35 are meshed.

[0039] With the cooperation of the hydraulic cylinder 32 and the reduction motor 33 , the lifting and rotation control of the first detection mechanism 4 can be realized.

[0040] Reference Figure 2 and Figure 3 The first detection mechanism 4 includes a mounting tube 41, an elastic telescopic member 42, a light emitting component 43 and a light receiving component 44. The mounting tube 41 is installed below the lifting and rotating mechanism 3. One end of the mounting tube 41 is open and is arranged facing the conveyor belt 1. The elastic telescopic member 42 is installed on the inner wall of the mounting tube 41 near the bottom and is arranged in multiple groups.

[0041] The elastic telescopic member 42 includes a connecting rod with ends connected to each other and a spring sleeved at the connection between the two connecting rods; There are multiple groups of light emitting components 43 and light receiving components 44 corresponding to the elastic telescopic parts 42, and each light emitting component 43 is installed at one end of the corresponding elastic telescopic part 42 away from the mounting tube 41. The light emitting components 43 are arranged in the mounting tube 41 and correspond to each light emitting component 43 one by one.

[0042] Reference Figure 3 and Figure 4 The light emitting assembly 43 includes a connecting rod 431, a roller 432 and a first laser diode 433. One end of the connecting rod 431 is spherically hinged to the end of the elastic telescopic member 42, and a second reset member for resetting the connecting rod 431 to the same direction as the elastic telescopic member 42 is provided at the hinge. The second reset member is a spring. Two rollers 432 are provided. The two rollers 432 are spaced apart and rotatably installed at the other end of the connecting rod 431. The elastic telescopic member 42 can drive the two rollers 432 to elastically abut against the body of the glass wine bottle to be inspected, and the two rollers 432 can adjust their angles according to the contour of the body of the glass wine bottle.

[0043] Reference Figure 3 and Figure 4 The light receiving component 44 includes a mounting rod 441 and a plurality of photosensitive diode arrays 442 arranged at the end of the mounting rod 441. One end of the mounting rod 441 is fixed to the inner wall of the mounting tube 41. The photosensitive diode array 442 is arranged to be spherical. Each photosensitive diode is fixed to the other end of the mounting rod 441 and is opposite to the corresponding first laser diode 433.

[0044] Reference Figure 1 and Figure 3 The second detection mechanism 11 includes a plurality of second laser diodes 111 disposed in the jacket 22 . Each second laser diode 111 corresponds to a corresponding photosensitive diode array 442 , and the emitted laser can be received by the corresponding photosensitive diode array 442 .

[0045] After the inspection of the glass bottle body is completed, since the jacket 22 blocks part of the glass bottle body, the first electric telescopic rod 21 contracts, the jacket 22 separates from the glass bottle body, and the reduction motor 33 drives the mounting cylinder 41 to rotate, and the mounting cylinder 41 drives the roller 432 to rotate. Due to the elastic telescopic member 42, the roller 432 elastically abuts against the surface of the glass bottle body. At this time, the roller 432 drives the glass bottle to rotate together. During the rotation process, multiple second laser diodes 111 perform defect detection on the glass bottle body blocked by the jacket 22 and at the same height. The laser emitted by the second laser diode 111 can be received by the corresponding photosensitive diode array 442, so as to realize the defect detection of the blocked part of the bottle body.

[0046] After the defect detection of the blocked portion of the bottle body is completed, the first electric telescopic rod 21 is extended again, and the jacket 22 is again in contact with the bottle body of the glass wine bottle to fix the bottle body of the glass wine bottle.

[0047] A plurality of groups of cutting knives 5 are evenly spaced apart on the lifting and rotating mechanism 3 corresponding to the circumference of the glass wine bottle body. Specifically, the plurality of groups of cutting knives 5 are installed in the mounting tube 41 and are evenly spaced apart along the circumference of the mounting tube 41, and a plurality of groups of cutting knives 5 are evenly spaced apart along the length direction of the mounting tube 41. A first reset member for driving the side of the cutting knife 5 to face the glass bottle body is provided on the rotating shaft of each cutting knife 5, and the first reset member adopts a torsion spring.

[0048] The inner wall of the mounting tube 41 is provided with a plurality of rotating components 6 for driving the cutter head 5 to rotate to abut against the body of the glass wine bottle. Figure 5 and Figure 6The rotating assembly 6 includes a driving member 61, a winding roller, a winding wheel 62 and a pull rope 63. The driving member 61 adopts a small servo motor. The driving member 61 is arranged in the mounting tube 41. The winding roller is coaxially fixed on the output end of the driving member 61. The winding wheel 62 is arranged on the inner wall of the mounting tube 41 at intervals and is located between the driving member 61 and the side of the cutting knife 5 away from the blade head. One end of the pull rope 63 is fixed to the side of the cutting knife 5 away from the blade head, and the other end is wound on the winding roller after passing through the winding wheel 62; when a defect is detected in the glass wine bottle, the driving member 61 drives the blade head of the cutting knife 5 to abut against the body of the glass wine bottle through the pull rope 63.

[0049] Reference Figure 5 , Figure 6 and Figure 7 The cutting knife 5 is provided with a cutting auxiliary air duct 51 and a cleaning air duct 52, respectively. An auxiliary air outlet 511 is provided at one end of the cutting auxiliary air duct 51, and the auxiliary air outlet 511 is located near the blade head of the cutting knife 5. The cleaning air duct 52 is provided with a plurality of air duct openings 521, and each air duct opening 521 is evenly and spaced apart along the side of the cutting knife 5. A cooling air pipe 7 is provided at one end of the cutting knife 5 away from the cutting head, and a switching assembly is also provided at one end of the cutting knife 5 away from the cutting head, and the switching assembly is transmission-connected to one end of the pull rope 63 away from the winding roller; When the side of the cutting knife 5 faces the glass wine bottle, the cold air pipe 7 is connected to the cleaning air duct 52 through the switching component, and when the blade head of the cutting knife 5 abuts against the body of the glass wine bottle, the cold air pipe 7 is connected to the cutting auxiliary air duct 51 through the switching component. Two auxiliary air outlets 511 are provided, and the two auxiliary air outlets 511 are respectively located on both sides of the blade head of the cutting knife 5.

[0050] Reference Figure 6 and Figure 7 The switching assembly includes a rotating wheel 8 and a third reset member. A connecting air duct 81 is provided in the rotating wheel 8. One end of the connecting air duct 81 is connected to the cold air pipe 7, and the other end can be connected to the cutting auxiliary air duct 51 or the cleaning air duct 52; The end of the cutting knife 5 away from the blade head is provided with a slot for the rotating wheel 8 to rotate and engage, a limiting structure is provided between the rotating wheel 8 and the inner wall of the slot, and the end of the pull rope 63 away from the winding roller is fixedly connected to the surface of the rotating wheel 8; When the pull rope 63 pulls the rotating wheel 8 to rotate, the rotating wheel 8 first rotates to the connecting air duct 81 and the cold air pipe 7 under the limit of the limit structure, and then drives the cutting knife 5 to rotate together; The third reset member is installed between the rotating wheel 8 and the inner wall of the slot. The third reset member adopts a spring, which is used to drive the connecting air duct 81 on the rotating wheel 8 to reset to communicate with the cleaning air duct 52.

[0051] After the inspection of the glass bottles is completed, the sorting mechanism 9 will sort the defective and non-defective glass bottles. Figure 1 The sorting mechanism 9 includes a second electric telescopic rod 91, a push plate 92, a qualified product collection frame 93 and a defective product collection frame 94. The second electric telescopic rod 91 is installed on the fixed part on one side of the conveyor belt 1, the push plate 92 is fixed at the telescopic end of the second electric telescopic rod 91, the defective product collection frame 94 is arranged on the other side of the conveyor belt 1 opposite to the push plate 92, and the qualified product collection frame 93 is arranged at the unloading end of the conveyor belt 1.

[0052] The implementation principle of the optical inspection device for defects on the body of a glass wine bottle in the embodiment of the present application is as follows: when the mounting tube 41 covers the glass wine bottle, the elastic telescopic member 42 elastically compresses the connecting rod 431, so that the connecting rod 431 drives the two rollers 432 to abut against the outer surface of the glass wine bottle. As the mounting tube 41 continues to descend, the two rollers 432 always abut against the surface of the glass wine bottle. Therefore, the first laser diode 433 can always emit a laser beam close to the glass wine bottle. Even if it encounters a curved surface of the glass wine bottle, the connection between the connecting rod 431 and the elastic telescopic member 42 will rotate, so that the two rollers 432 always keep abutting against the outer surface of the glass wine bottle, so that the laser beam emitted by the first laser diode 433 can always be emitted at a facing and close angle, the optical path is fixed, the angle change is reduced, and the problem of beam divergence or energy loss caused by long-distance emission is avoided, thereby ensuring the detection accuracy. The laser beam emission close to the bottle body can minimize the light scattering interference caused by the curved surface shape, curvature change or bottle body tilt, enhance the sensitivity to defects, and thus improve the detection accuracy of defects. After the inspection of the glass bottle body is completed, since the jacket 22 blocks part of the glass bottle body, the first electric telescopic rod 21 contracts, the jacket 22 separates from the glass bottle body, the reduction motor 33 drives the mounting cylinder 41 to rotate, and the mounting cylinder 41 drives the roller 432 to rotate. Since the elastic telescopic member 42 makes the roller 432 elastically abut against the surface of the glass bottle body, the roller 432 drives the glass bottle to rotate together. During the rotation process, the multiple second laser diodes 111 perform defect inspection on the glass bottle body blocked by the jacket 22 and at the same height. The laser emitted by the second laser diode 111 can be received by the corresponding photosensitive diode array 442, so as to realize the defect inspection of the blocked part of the bottle body. After the defect detection of the blocked part of the bottle body is completed, the first electric telescopic rod 21 is extended again, and the jacket 22 is abutted against the bottle body of the glass wine bottle again to fix the bottle body of the glass wine bottle; When the inspection is completed and no defects are detected on the glass wine bottle body, the cold air pipe 7 is connected to the cleaning air duct 52, and the cold air is ejected from each air duct opening 521 through the cleaning air duct 52. The multiple cleaning air ducts 52 on the multiple cutting knives 5 work simultaneously, thereby uniformly cleaning the entire surface of the glass wine bottle, making the surface of the glass wine bottle cleaner, and the subsequent labeling and other operations on the edge; When a defect is detected in the body of the glass wine bottle, the cold air pipe 7 and the cutting auxiliary air duct 51 are connected, and then the auxiliary air outlet 511 sprays cold air at the cutting head of the cutting knife 5. The cold air can form a stress difference at the cutting position of the cutting knife 5, and by creating a slight uneven stress area at the scratch line, the glass is easy to break in this area, but it does not directly cause overall fracture or surface damage. Since the cooling is carried out locally, rather than the rapid cooling of the entire scratch line, the local temperature difference can be effectively controlled to ensure the cutting accuracy and stability of the glass.

[0053] The present application also discloses a method for optically detecting defects on a glass wine bottle body, which uses the above-mentioned optical detection device for detecting defects on a glass wine bottle body, and includes the following steps: S1: Start the conveyor belt 1, place the glass bottles to be tested on the conveyor belt 1 one by one, and the conveyor belt 1 conveys the glass bottles to the position where the clamping mechanism 2 is located one by one, and then the conveyor belt 1 stops transmitting; S2: The clamping mechanism 2 clamps and fixes the glass wine bottle, and the lifting and rotating mechanism 3 drives the installation cylinder 41 to rotate and descend. At this time, the light emitting component 43 emits a laser beam to detect defects on the body of the glass wine bottle. When the installation cylinder 41 completely covers the glass wine bottle, the lifting and rotating mechanism 3 stops descending, and the light emitting component 43 stops detecting the body of the glass wine bottle. S3: the clamping mechanism 2 releases the clamping fixation on the glass wine bottle body, and the lifting and rotating mechanism 3 drives the installation cylinder 41 to continue to rotate. At this time, the second detection mechanism 11 performs defect detection on the blocked part of the glass wine bottle body. After the lifting and rotating mechanism 3 drives the installation cylinder 41 to rotate one circle, the clamping mechanism 2 clamps and fixes the glass wine bottle body again; S4: the lifting and rotating mechanism 3 drives the installation cylinder 41 to rise, and drives the installation cylinder 41 to rotate at the same time: when no defects are detected on the body of the glass wine bottle, the cold air pipe 7 cleans the body of the glass wine bottle evenly through each cleaning air duct 52; when defects are detected on the body of the glass wine bottle, the driving member 61 drives the blade head of the cutting knife 5 to rotate to abut against the body of the glass wine bottle, and the cold air pipe 7 blows out cold air along both sides of the cutting position through two auxiliary air outlets 511, and the auxiliary cutting knife 5 evenly draws annular cutting marks at different heights on the body of the glass wine bottle; S5: the clamping mechanism 2 releases the glass wine bottle, and the conveyor belt 1 continues to drive the inspected glass wine bottle to move. When it reaches the sorting mechanism 9, the sorting mechanism 9 unloads the glass wine bottle to the corresponding collection point.

[0054] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical inspection device for defects in glass bottles, characterized by: The conveyor belt (1) comprises: A clamping mechanism (2) is used to clamp and fix the glass wine bottles transported on the conveyor belt (1); a lifting and rotating mechanism (3) and a first detection mechanism (4), wherein the lifting and rotating mechanism (3) and the first detection mechanism (4) are located directly above the clamping mechanism (2), the first detection mechanism (4) is mounted on the lifting and rotating mechanism (3) and is used to perform defect detection on the body of the glass wine bottle, and the lifting and rotating mechanism (3) is used to drive the first detection mechanism (4) to lift and rotate in a direction close to or away from the upper surface of the conveyor belt (1); The lifting and rotating mechanism (3) is provided with a plurality of groups of cutting knives (5) at even intervals in the circumferential direction of the glass wine bottle body, and a plurality of groups are provided at even intervals along the length direction of the glass wine bottle. The rotating shaft of each of the cutting knives (5) is provided with a first reset member for driving the side of the cutting knives (5) to face the glass bottle body. The lifting and rotating mechanism (3) is also provided with a plurality of groups of rotating components (6) for driving the knife heads of the cutting knives (5) to rotate to contact the glass wine bottle body. The clamping mechanism (2) is provided with a second detection mechanism (11), and the second detection mechanism (11) is used to detect the bottle body portion of the glass wine bottle facing the clamping mechanism (2); The sorting mechanism (9) is used to separately collect the defective glass wine bottles and the non-defective glass wine bottles detected by the first detection mechanism (4).

2. The optical inspection device for defects in glass wine bottles according to claim 1, characterized in that: The first detection mechanism (4) comprises a mounting tube (41), an elastic telescopic member (42), a light emitting assembly (43) and a light receiving assembly (44); the mounting tube (41) is mounted below the lifting and rotating mechanism (3); one end of the mounting tube (41) is open and is arranged facing the conveyor belt (1); the elastic telescopic member (42) is mounted on the inner wall of the mounting tube (41) near the bottom and is provided in multiple groups; The light emitting components (43) and the light receiving components (44) are provided in a plurality of groups corresponding to the elastically retractable parts (42), and each of the light emitting components (43) is installed at an end of the corresponding elastically retractable part (42) away from the mounting tube (41). The light emitting components (43) are arranged in the mounting tube (41) and correspond one-to-one to each of the light emitting components (43).

3. The optical inspection device for glass wine bottle defects according to claim 2, characterized in that: The light emitting assembly (43) comprises a connecting rod (431), a roller (432) and a first laser diode (433); one end of the connecting rod (431) is spherically hinged to the end of the elastic telescopic member (42); a second reset member for resetting the connecting rod (431) to a position co-directional with the elastic telescopic member (42) is provided at the hinge; two rollers (432) are provided, and the two rollers (432) are rotatably mounted at the other end of the connecting rod (431) at an interval; The elastic telescopic member (42) can drive the two rollers (432) to elastically abut against the body of the glass wine bottle to be inspected, and the two rollers (432) can adjust their angles according to the contour of the body of the glass wine bottle.

4. The optical inspection device for defects in glass wine bottles according to claim 3, characterized in that: The light receiving assembly (44) comprises a mounting rod (441) and a plurality of groups of photosensitive diode arrays (442) arranged at the end of the mounting rod (441); one end of the mounting rod (441) is fixed to the inner wall of the mounting tube (41); the photosensitive diode array (442) is arranged to form a spherical surface; each photosensitive diode is fixed to the other end of the mounting rod (441) and is directly opposite to the corresponding first laser diode (433).

5. The optical inspection device for defects in glass wine bottles according to claim 4, characterized in that: The clamping mechanism (2) comprises a first electric telescopic rod (21) and a clamping sleeve (22). Two groups of the clamping mechanism (2) are provided correspondingly. The two groups of the clamping mechanism (2) are respectively located on both sides of the conveyor belt (1). The clamping sleeve (22) is fixed to the telescopic end of the first electric telescopic rod (21) and can clamp and fix the bottle body of the glass wine bottle respectively under the drive of the first electric telescopic rod (21).

6. The optical inspection device for defects in glass wine bottles according to claim 5, characterized in that: The second detection mechanism (11) comprises a plurality of second laser diodes (111) arranged in the jacket (22), each of the second laser diodes (111) corresponds to a corresponding photosensitive diode array (442), and the emitted laser light can be received by the corresponding photosensitive diode array (442).

7. The optical inspection device for defects in glass wine bottles according to claim 5, characterized in that: The rotating assembly (6) comprises a driving member (61), a winding roller, a winding wheel (62) and a pull rope (63); the driving member (61) is arranged in the installation tube (41); the winding roller is coaxially fixed on the output end of the driving member (61); the winding wheel (62) is arranged at intervals on the inner wall of the installation tube (41) and is located between the driving member (61) and the side of the cutting knife (5) away from the knife head; one end of the pulling rope (63) is fixed to the side of the cutting knife (5) away from the knife head, and the other end is wound on the winding roller after passing through the winding wheel (62); When a defect is detected in the glass wine bottle, the driving member (61) drives the blade head of the cutting knife (5) to abut against the body of the glass wine bottle via the pull rope (63).

8. The optical inspection device for glass wine bottle defects according to claim 7, characterized in that: The cutting knife (5) is provided with a cutting auxiliary air duct (51) and a cleaning air duct (52), one end of the cutting auxiliary air duct (51) is provided with an auxiliary air outlet (511), the auxiliary air outlet (511) is located near the blade head of the cutting knife (5), and the cleaning air duct (52) is provided with a plurality of air duct openings (521), each of the air duct openings (521) is spaced and evenly opened along the side of the cutting knife (5); The end of the cutting knife (5) away from the cutting head is provided with a cooling air pipe (7), the cooling air pipe (7) is connected to an external cooling air system, and the end of the cutting knife (5) away from the cutting head is also provided with a switching component, the switching component is in transmission connection with the end of the pull rope (63) away from the winding roller; When the side of the cutting knife (5) faces the glass wine bottle, the cold air pipe (7) is connected to the cleaning air duct (52) through the switching component; when the blade head of the cutting knife (5) abuts against the body of the glass wine bottle, the cold air pipe (7) is connected to the cutting auxiliary air duct (51) through the switching component; two auxiliary air outlets (511) are provided, and the two auxiliary air outlets (511) are respectively located on both sides of the blade head of the cutting knife (5).

9. The optical inspection device for defects in glass wine bottles according to claim 8, characterized in that: The switching assembly comprises a rotating wheel (8) and a third reset member, a connecting air duct (81) is provided in the rotating wheel (8), one end of the connecting air duct (81) is connected to the cold air pipe (7), and the other end can be connected to the cutting auxiliary air duct (51) or the cleaning air duct (52); The end of the cutting knife (5) away from the knife head is provided with a slot for the rotating wheel (8) to rotate and engage, a limiting structure is provided between the rotating wheel (8) and the inner wall of the slot, and the end of the pull rope (63) away from the winding roller is fixedly connected to the surface of the rotating wheel (8); When the pull rope (63) pulls the rotating wheel (8) to rotate, the rotating wheel (8) first rotates to the connecting air duct (81) and the cold air pipe (7) under the limit of the limit structure, and then drives the cutting knife (5) to rotate together; The third reset member is installed between the rotating wheel (8) and the inner wall of the slot, and is used to drive the connecting air duct (81) on the rotating wheel (8) to reset to communicate with the cleaning air duct (52).

10. A method for optically inspecting defects on glass wine bottles, using the optical inspection device for defects on glass wine bottles as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Start the conveyor belt (1), place the glass bottles to be inspected on the conveyor belt (1) one by one, and the conveyor belt (1) transports the glass bottles to the position where the clamping mechanism (2) is located one by one, and then stop the conveyor belt (1); S2: the clamping mechanism (2) clamps and fixes the glass wine bottle facing the mounting cylinder (41), and the lifting and rotating mechanism (3) drives the mounting cylinder (41) to rotate and descend. At this time, the light emitting component (43) emits a laser beam to detect defects on the body of the glass wine bottle. When the mounting cylinder (41) completely covers the glass wine bottle, the lifting and rotating mechanism (3) stops descending, and the light emitting component (43) stops detecting the body of the glass wine bottle. S3: the clamping mechanism (2) releases the clamping fixation on the glass wine bottle body, and the lifting and rotating mechanism (3) drives the mounting cylinder (41) to continue rotating. At this time, the second detection mechanism (11) performs defect detection on the blocked portion of the glass wine bottle body. After the lifting and rotating mechanism (3) drives the mounting cylinder (41) to rotate one circle, the clamping mechanism (2) clamps and fixes the glass wine bottle body again; S4: the lifting and rotating mechanism (3) drives the installation cylinder (41) to rise and drives the installation cylinder (41) to rotate at the same time: when no defects are detected on the body of the glass wine bottle, the cold air pipe (7) cleans the body of the glass wine bottle evenly through each cleaning air duct (52); when defects are detected on the body of the glass wine bottle, the driving member (61) drives the blade head of the cutting knife (5) to rotate until it contacts the body of the glass wine bottle, and the cold air pipe (7) blows out cold air along both sides of the cutting position through two auxiliary air outlets (511), and the auxiliary cutting knife (5) evenly draws annular cutting marks at different heights on the body of the glass wine bottle; S5: The clamping mechanism (2) releases the glass wine bottle, and the conveyor belt (1) continues to drive the inspected glass wine bottle to move. When the glass wine bottle reaches the sorting mechanism (9), the sorting mechanism (9) unloads the glass wine bottle to the corresponding collection location.

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