A detection machine

Abstract

The present invention relates to the field of bottle inspection technology, specifically disclosing a detection machine comprising a frame, a rotating component mounted on the frame, and an image acquisition component. The rotating component comprises a lifting seat and a friction wheel. The lifting seat is connected to two self-rotating guide wheels with a clearance space between the two guide wheels. The rotating component also comprises a vertical sliding frame and a driver. The vertical sliding frame is vertically slidably connected to the frame, and the friction wheel is rotatably connected to the vertical sliding frame. After the friction wheel rises to a designed position, the driver connects to the friction wheel, driving the friction wheel to rotate. This solution is intended to address the problem in the prior art that the bottle scrap rate significantly increases after the bottle inspection speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle detection, and in particular to a detection machine. Background Art

[0002] After the bottle is produced, it is necessary to test the quality of the bottle before packaging. There are different testing methods for bottle testing according to different needs. For example, if the air tightness of the bottle is high but the appearance and size requirements are not high, it is only necessary to focus on whether the bottle has cracks, breaks, bursts and other defects that affect the air tightness. For bottles with high requirements for both air tightness and appearance, it is necessary to test not only whether there are defects that affect the air tightness of the bottle, but also the shape and size specifications, impurities and defects such as air lines caused by molding. Regardless of the requirements, the existing technology mostly uses visual inspection combined with artificial intelligence deep learning to achieve bottle defect detection. This detection method is based on the image data of the bottle collected by the image acquisition component of the detection machine for defect detection. The detection machine is connected to an industrial computer with visual inspection technology, and the industrial computer judges the defects of the bottle based on the received image data.

[0003] To ensure comprehensive image data acquisition, the bottle must be rotated during the image data acquisition process to ensure that multiple parts of the bottle can be captured. The specific bottle inspection process is as follows: Two guide wheels on the lifting seat lift the bottle upward from both sides of the bottle (the two guide wheels are parallel to the bottle, and a clearance is formed between the two guide wheels to facilitate supporting the bottle while leaving room for subsequent rotation of the bottle. The guide wheels can use bearings or rollers, as long as the guide wheels can rotate on their own), until the bottle is lifted up to the point where it contacts the friction wheels directly above the two guide wheels. The rotation of the friction wheels generates friction between the friction wheels and the bottle, which causes the bottle to rotate with the support of the two self-rotating guide wheels. During the bottle's rotation, the multiple image acquisition modules of the image acquisition component respectively capture image data of the bottle's bottom, body, and mouth.

[0004] However, there are still some problems with the current bottle inspection method. For example, because the bottles to be inspected are continuously transported forward by the rotary conveyor, the bottles are quickly lifted up by the lifting seat to the position of the friction wheel for rotation inspection during the transportation process. If the bottle inspection speed is too slow, the bottle inspection will become a bottleneck in production, affecting production efficiency. If the inspection speed is increased, for example, the bottle inspection only takes a few seconds or even about 1 second, but the inspection speed is increased, it is found that the bottle scrap rate increases sharply. According to statistics, the increase in the scrap rate is mainly due to the bottles falling and being scrapped after being lifted by the lifting seat, and the bottles falling and being scrapped after being detached from the lifting seat during the falling process after inspection. Summary of the Invention

[0005] The present invention aims to provide a detection machine to solve the problem in the prior art that the bottle rejection rate increases significantly after the bottle detection speed increases.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A detection machine includes a frame and a rotating component and an image acquisition component installed on the frame. The rotating component includes a lifting seat and a friction wheel. The lifting seat is connected to two guide wheels that can rotate on their own, and there is an air gap between the two guide wheels. The rotating component also includes a vertical sliding frame and a driver. The vertical sliding frame is vertically slidably connected to the frame, and the friction wheel is rotatably connected to the vertical sliding frame. After the friction wheel rises to a designed position, the driver drives the friction wheel to rotate.

[0008] The principle and advantages of this solution are as follows: in actual application, before bottle inspection, the friction wheel is at the lowest position due to its own gravity and the gravity of the vertical sliding frame. When the bottle needs to be inspected, the bottle is driven up by the lifting seat. After the lifting seat rises slightly, the bottle on the lifting seat rests on the bottom of the friction wheel until the bottle pushes the friction wheel to rise to the designed position. At this time, the driver drives the friction wheel to rotate, and the friction wheel drives the bottle to rotate. During the rotation process, multiple image data of the bottle are collected by the image acquisition component.

[0009] After studying and comparing this solution with the existing technology, it was found that the reason why the bottle body is prone to falling both in the rising stage and the falling stage is closely related to the rapid lifting of the lifting seat. The rapid lifting of the bottle body by the guide wheel on the lifting seat will cause the smooth bottle body to be thrown upward due to the sudden upward supporting force (overweight), and the contact between the guide wheel itself and the bottle body is line contact, and the length of the contact line is much smaller than the height of the bottle, resulting in the bottle body being unable to be stably placed on the guide wheel and falling; and when the bottle body is detected and falls, the falling speed of the lifting seat is higher than the falling speed of the bottle body, and the bottle body is easily in a weightless state, resulting in the problem that the bottle body still cannot be stably placed on the guide wheel, and eventually it is also easy to fall.

[0010] In this solution, before the bottle body is inspected, the friction wheel is in the lowest position due to its own gravity and the gravity of the vertical sliding frame. When the bottle body needs to be inspected, the bottle body is driven to rise by the lifting seat. After the lifting seat rises slightly, the bottle body on the lifting seat is against the bottom of the friction wheel until the bottle body pushes the friction wheel to rise to the designed position. At this time, the driver drives the friction wheel to rotate, and the friction wheel drives the bottle body to rotate. During the rotation process, multiple image data of the bottle body are collected by the image acquisition component; compared with the existing technology, the friction wheel of this solution can be pressed up by the friction wheel just after the bottle body is lifted a small distance, ensuring that the inspected bottle body is confined to the triangular space enclosed by the friction wheel and the two guide wheels during most of the lifting stroke, which greatly reduces the probability of the bottle body falling during the lifting process, that is, greatly reduces the scrap rate of the bottle body after the lifting seat is accelerated.

[0011] In addition, after the bottle image data is collected, the lifting seat descends, and the friction wheel will also descend. During the descent, the friction wheel falls together with the bottle, which is equivalent to pressing down on the bottle from the top, alleviating the weightlessness of the bottle, reducing the probability of the bottle falling during the descent, and further reducing the bottle scrap rate after the lifting seat is accelerated.

[0012] Preferably, as an improvement, the driver includes a driving motor and a driving wheel, the output end of the driving motor is fixedly connected to the driving wheel, and the driving wheel can be connected to the friction wheel through friction transmission or meshing transmission.

[0013] Beneficial effects: This solution makes the rotation of the friction wheel more convenient by setting the active wheel; in addition, this solution makes the drive motor not directly installed on the friction wheel, greatly reducing the overall gravity of the friction wheel and the vertical sliding frame, thereby reducing the overall pressure on the bottle body formed by the vertical sliding frame and the friction wheel, which is beneficial to reducing the probability of the bottle body being deformed or crushed by the friction wheel.

[0014] Preferably, as an improvement, a push rod is fixedly connected to the lifting seat, and the push rod can support the vertical sliding frame.

[0015] Beneficial effect: When this solution is adopted, when the lifting seat drives the bottle body to rise, the push rod also rises synchronously with the lifting seat. When the bottle body hits the friction wheel, the push rod also supports the vertical sliding frame, thereby ensuring that the rising force of the vertical sliding frame and the friction wheel mainly comes from the push rod, avoiding the problem of the bottle body being deformed or broken due to excessive pressure from the friction wheel and the vertical sliding frame (for soft and easily deformable bottles, deformation can be greatly reduced or even avoided, and for very fragile bottles, such as glass bottles, the problem of bottle body breakage can be avoided).

[0016] Preferably, as an improvement, a height adjustment rod is provided between the vertical sliding frame and the top rod, the height adjustment rod is installed on the vertical sliding frame or on the top rod, and the height adjustment rod can adjust the minimum distance between the top rod and the vertical sliding frame.

[0017] Beneficial effect: When adopting this solution, because the contour surface of the friction wheel in contact with the bottle body is elastic (for example, the friction wheel itself is a rubber wheel, or a rubber ring is covered on the outer diameter of the friction wheel), when the height adjustment rod can adjust the minimum distance between the push rod and the vertical sliding frame, that is, the minimum distance between the friction wheel (the friction wheel moves synchronously with the vertical sliding frame) and the guide wheel (the guide wheel moves synchronously with the lifting seat, and the push rod moves synchronously with the lifting seat) can be adjusted by adjusting the height adjustment rod. After this minimum distance is adjusted, the pressure of the friction wheel on the bottle body can be adjusted (if the minimum distance is adjusted to be larger, the support of the bottle body on the friction wheel will be weakened and the support of the push rod on the vertical sliding frame will be strengthened, thereby reducing the friction between the bottle body and the friction wheel; conversely, the force of the bottle body supporting the friction wheel will increase, thereby increasing the friction between the bottle body and the friction wheel), so as to ensure the friction between the bottle body and the friction wheel without breaking the bottle body.

[0018] In addition, when adopting this scheme, after the height adjustment rod is adjusted, the distance between the guide wheel and the friction wheel on the lifting seat is adjusted by the height adjustment rod, thereby adapting to the space placement requirements of new specifications of bottles during the inspection process.

[0019] In addition, due to the setting of the height adjustment rod, the height adjustment rod can be adjusted even if the bottle size becomes larger (that is, the bottle diameter becomes larger), so that the lifting force of the lifting friction wheel still mainly comes from the push rod, ensuring that the bottle will not be broken due to excessive pressure after the bottle size changes.

[0020] Preferably, as an improvement, a first elastic member is provided between the vertical sliding frame and the frame, and the first elastic member applies a downward pulling force to the vertical sliding frame.

[0021] Beneficial effect: When this solution is adopted, due to the setting of the first elastic member, the vertical sliding frame can have an active downward force to ensure that the friction wheel can be pressed tightly against the bottle body, and to ensure that the friction force between the friction wheel and the bottle body after rotation is sufficient to enable the bottle body to rotate.

[0022] In addition, even if the bottle body is driven to descend rapidly by the lifting seat after inspection (the bottle body loses weight due to excessive descent), the friction wheel will still press on the bottle body and descend rapidly due to the downward pulling tendency of the vertical sliding frame by the first elastic member, further alleviating the weightlessness of the bottle body during the falling process, ensuring that the bottle body is also confined in the enclosed space between the friction wheel and the two guide wheels during the descending process, and ensuring that the bottle body will not fall from the guide wheels of the lifting seat when the lifting seat descends rapidly.

[0023] Preferably, as an improvement, the driving wheel and the friction wheel are connected by friction transmission, the driving wheel is connected to a movable frame, the movable frame is slidably connected to the frame, a second elastic member is provided between the movable frame and the frame, and the second elastic member gives the movable frame a pulling force close to the friction wheel.

[0024] Beneficial effect: When adopting this scheme, the setting of the second elastic member can make the movable frame always tend to approach the friction wheel, thereby ensuring that even if the position of the friction wheel changes slightly (for example, due to changes in the specifications of the bottle body being inspected, such as the outer diameter of the bottle body becomes 2mm larger or smaller by 2mm, the position of the friction wheel will produce a height change of 2mm when the lifting stroke of the lifting seat remains unchanged), the active wheel can always be close to the friction wheel and drive the friction wheel to rotate, thereby ensuring that the smooth progress of the bottle body inspection is not affected by the slight change in the position of the friction wheel, thereby improving the practicality of this scheme and ensuring the long-term reliability of the bottle body inspection.

[0025] Preferably, as an improvement, a spacing adjustment rod is provided between the movable frame and the frame, and the spacing adjustment rod can adjust the minimum spacing between the driving wheel and the friction wheel.

[0026] Beneficial effect: When adopting this scheme, when the second elastic member drives the driving wheel on the movable frame to approach the friction wheel and the driving wheel presses the friction wheel too tightly, the minimum distance between the movable frame and the friction wheel can be adjusted by screwing the spacing adjustment rod, thereby adjusting the interaction force between the driving wheel and the friction wheel, avoiding the problem of increased friction and easy wear between the friction wheel and the driving wheel due to excessive extrusion pressure between the friction wheel and the driving wheel; in addition, if the extrusion pressure of the driving wheel on the friction wheel is too large, when the driving wheel and the friction wheel are not on the same horizontal line, the extrusion pressure of the driving wheel on the friction wheel will be divided into horizontal force and vertical force, and the vertical force will be transmitted to the bottle body through the friction wheel, causing the bottle body to be under excessive pressure, thereby increasing the probability of the bottle body being crushed; this scheme can greatly avoid the occurrence of this situation through the setting of the spacing adjustment rod.

[0027] Preferably, as an improvement, it also includes a unloading device and a rotary conveyor for bottle transportation. The unloading device is located at the output end of the rotary conveyor. The unloading device is used to take away qualified products and unqualified products on the rotary conveyor. The unloading device places qualified products and unqualified products separately.

[0028] Beneficial effects: When this solution is adopted, since the inspection machine is externally connected to the industrial computer, the image acquisition component is connected to the industrial computer, and the industrial computer is equipped with visual inspection technology, the inspected bottles are divided into three categories by the industrial computer: qualified products, size-unqualified products and appearance-unqualified products. This solution uses the unloading device to promptly remove qualified products and appearance-unqualified products and place them separately, making it convenient for subsequent manual inspection or separate equipment inspection to re-inspect and determine the appearance-unqualified products, thereby reducing the scrap rate of the bottles; and for size-unqualified products, they will be directly discharged from the output end of the rotary conveyor as they rotate.

[0029] Preferably, as an improvement, a rotary conveyor for bottle transport is further included, the rotary conveyor includes two rotary conveyor lines, each rotary conveyor line is fixed with a number of support plates evenly distributed along the rotary path, and the lifting seat is located between the two rotary conveyor lines; a support rod is also provided between the two rotary conveyor lines, and the support rod is located at the input end of the rotary conveyor line.

[0030] Beneficial effect: When this solution is adopted, the bottle body is supported by the support plates of the two rotary conveyor lines at the same time, which facilitates the transmission of the bottle body. At the same time, the lifting seat can support the bottle body from the middle of the bottle body, ensuring the stability of the lifting seat's support for the bottle body.

[0031] In addition, in the prior art, when the bottles are placed on the support plates, they may be placed manually or by a robot that can transfer multiple bottles at a time. In either case, the positions of the multiple bottles placed on the support plates may be inconsistent. Some bottles may be placed on the support plates of only one of the rotary conveyor lines, or only have stable support on the support plates of one of the rotary conveyor lines, while only a small overlap is achieved on the support plates of the other rotary conveyor line. As a result, the bottles are easily dropped from the rotary conveyor during transportation. In addition, because there is a lifting seat in the gap between the two rotary conveyors, To ensure that the guide wheels on the lifting seat can stably support the bottles during lifting, the length of the guide wheels must not be too short. This requires that there must be enough space for the guide wheels between the two rotary conveyor lines. For bottles with larger heights, there is a large range of options for the spacing between the two rotary conveyor lines. However, for bottles with smaller heights, the only option is to minimize the spacing between the two rotary conveyor lines while ensuring the normal lifting of the guide wheels to provide sufficient support for the bottles. However, for bottles with smaller heights, the only option is to improve the accuracy of bottle placement to reduce the probability of bottle drops. However, such requirements will increase the cost of the equipment.

[0032] This solution sets a support rod between the two rotary conveyor lines, so that even if the bottle body is stably supported by the support plate of only one rotary conveyor line, the bottle body can be stably conveyed along the rotary conveyor with the support of the support rod, which reduces the difficulty of placing the bottle body and avoids the bottle body from falling.

[0033] Preferably, as an improvement, two correcting plates are fixedly connected to the frame, and the two correcting plates are located on both sides of the width direction of the rotary conveyor and above a section of the support rod close to the rotating part. Guide surfaces are provided on the opposite surfaces of the two correcting plates, and the two guide surfaces are V-shaped.

[0034] Beneficial effect: This solution sets a correction plate with a guide surface, so that the bottle body can be corrected under the guide surface of the correction plate before entering the top of the lifting seat, ensuring that all bottles are lifted by the lifting seat in the same position for inspection, which is beneficial to ensure the accuracy of the inspection structure and reduce the difficulty of bottle inspection.

[0035] Preferably, as an improvement, it further includes a loading device and a rotary conveyor for bottle transfer, and the loading device is used to transfer the bottle to the rotary conveyor; this solution further improves the degree of automation of the detection machine.

[0036] Preferably, as an improvement, the loading device adopts a loading manipulator or a robot or a space moving module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the driving wheel and the friction wheel under friction transmission according to the first embodiment of the present invention.

[0038] Figure 2 This is a front view of the driving wheel and the friction wheel under belt drive in embodiment 1 of the present invention.

[0039] Figure 3 This is a front view of the first embodiment of the present invention when the driving wheel and the friction wheel are in gear meshing transmission.

[0040] Figure 4 for Figure 3 Schematic diagram of the top view of the middle driving wheel and friction wheel.

[0041] Figure 5 This is a schematic top view of the image acquisition component relative to the bottle body in Example 1 of the present invention.

[0042] Figure 6 This is an axonometric view of the second embodiment of the present invention.

[0043] Figure 7 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention from another perspective.

[0044] Figure 8 for Figure 6 Axonometric view of a rotating component in .

[0045] Figure 9 for Figure 7 Axonometric view of a rotating component in .

[0046] Figure 10 for Figure 9 Schematic diagram of the structure of the vertical sliding frame.

[0047] Figure 11 for Figure 8 Schematic diagram of the structure of the moving frame and driving wheel.

[0048] Figure 12 for Figure 6 The partial structural diagram of the blanking device is shown in FIG.

[0049] Figure 13 This is a structural diagram of the improvement of the third embodiment of the present invention.

[0050] Figure 14 This is a structural diagram of the improvement of the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following is further described in detail through specific implementation methods:

[0052] The figure marks in the drawings of the specification include: frame 1, rotary conveyor 2, support plate 21, support rod 11, correcting plate 12, unloading robot 61, re-inspection robot 62, filling box 63, loading device 7, rotating component 3, lifting seat 31, guide wheel 32, friction wheel 33, vertical sliding frame 34, driving wheel 35, push rod 36, height adjustment rod 37, first elastic member 38, buffer 39, movable frame 40, second elastic member 41, spacing adjustment rod 42, bottle bottom image acquisition module 51, bottle body image acquisition module 52, bottle inner wall image acquisition module 53, bottle mouth inner wall image acquisition module 54, bottle mouth image acquisition module 55, light source 56, camera assembly 500, fixing frame 502, horizontal adjustment hole 5021, mounting frame 501, arc hole 5011, vertical adjustment hole 5012.

[0053] Example 1

[0054] As attached Figures 1 to 5 As shown, a detection machine includes a frame 1 and a rotating component 3 and an image acquisition component installed on the frame 1. The rotating component 3 includes a lifting seat 31, a friction wheel 33, a vertical sliding frame 34 and a driver. The active lifting of the lifting seat 31 can be driven by a driving mechanism. The driving mechanism can be a vertical cylinder, a vertically arranged linear module or a vertical transmission conveyor, and the driving mechanism is fixedly installed on the frame 1.

[0055] Two self-rotating guide wheels 32 are connected to the top of the lifting seat 31 , with an air space between the two guide wheels 32 . In this embodiment, the guide wheels 32 are formed of bearings.

[0056] The vertical sliding frame 34 and the friction wheel 33 are located above the lifting seat 31. The friction wheel 33 is rotatably connected to the vertical sliding frame 34. The vertical sliding frame 34 is vertically slidably connected to the frame 1. After the friction wheel 33 rises to the designed position, the driver drives the friction wheel 33 to rotate.

[0057] Specifically, the driver includes a driving motor and a driving wheel 35 . The output end of the driving motor is fixedly connected to the driving wheel 35 . The driving wheel 35 can be connected to the friction wheel 33 through friction transmission or meshing transmission.

[0058] In this embodiment Figure 1 In the embodiment, the driving wheel 35 and the friction wheel 33 are connected through direct friction transmission. When the friction wheel 33 rises to the designed position, the friction wheel 33 and the driving wheel 35 are against each other, and the driving wheel 35 drives the friction wheel 33 to rotate by relying on the friction force.

[0059] In this embodiment Figure 2 In the embodiment, the driving wheel 35 and the friction wheel 33 are connected by a belt. When the friction wheel 33 rises to the designed position, the belt is tightened, so that the driving wheel 35 drives the friction wheel 33 to rotate.

[0060] In this embodiment Figure 3 In the embodiment, the driving wheel 35 and the friction wheel 33 are driven by gear meshing, and the rotating shaft of the friction wheel 33 is provided with teeth meshing with the driving wheel 35.

[0061] The image acquisition components include a bottle bottom image acquisition module 51, a bottle body image acquisition module 52, a bottle mouth image acquisition module 55, a bottle inner wall image acquisition module 53 and a bottle mouth inner side image acquisition module.

[0062] by Figure 1 As an example, the method for the inspection machine to inspect the bottle is as follows:

[0063] S1. The bottle body and the friction wheel 33 rise: the driving mechanism of the rotating component 3 is started, so that the lifting seat 31 drives the bottle body placed on the two guide wheels 32 to rise. The rising bottle body pushes the friction wheel 33 to rise to the designed position so that the friction wheel 33 is connected to the driving wheel 35.

[0064] S2. Image capture while the bottle rotates: The driving wheel 35 drives the friction wheel 33 to rotate, which in turn drives the bottle to rotate. During this rotation, the image capture components are activated. The bottle bottom image capture module 51 captures multiple bottom image data, the bottle body image capture module 52 captures multiple body image data, the bottle mouth image capture module 55 captures multiple mouth image data, the bottle inner wall image capture module 53 captures multiple inner wall image data, and the bottle mouth inner side image capture module captures multiple inner mouth image data. During this image data capture process, the bottle body image capture module 52 captures image data in backlight mode, while the bottle bottom image capture module 51, the bottle mouth image capture module 55, the bottle inner wall image capture module 53, and the bottle mouth inner side image capture module all capture image data in sidelight mode.

[0065] When this embodiment is adopted, the friction wheel 33 can be pressed up by the friction wheel 33 just after the bottle body is lifted a small distance, ensuring that the bottle body being tested is confined in the triangular space enclosed by the friction wheel 33 and the two guide wheels 32 during most of the lifting stroke and the falling stroke of the bottle body after the test is completed. This can basically avoid the problem of the bottle body falling and being scrapped due to the rapid lifting and lowering of the lifting seat 31, and ensure that the bottle scrap rate will not increase on the basis of speeding up the testing cycle.

[0066] In terms of image data acquisition, this embodiment realizes all-round detection of the bottle body through the design of five groups of image acquisition modules, fills the gap in the detection of the inside of the bottle mouth, and makes the defect detection of the bottle body more accurate.

[0067] Example 2

[0068] Combine Figures 6 to 12 , Example 2 is further improved on the basis of Example 1, specifically based on Example Figure 1 As an example, the following improvements are included:

[0069] 1. Improvement of rotating component 3:

[0070] A top rod 36 is fixedly connected to the lifting seat 31. In this embodiment, a bottom crossbar is fixed to the bottom of the vertical sliding frame 34, and a top crossbar is fixed to the top of the vertical sliding frame 34. A height adjustment rod 37 is threadedly connected to the bottom crossbar. In this embodiment, the height adjustment rod 37 is a screw. The bottom of the height adjustment rod 37 can abut against the top of the top rod 36. The height adjustment rod 37 can adjust the height difference between the bottom of the height adjustment rod 37 and the friction wheel 33. A first elastic member 38 is provided between the top crossbar of the vertical sliding frame 34 and the frame 1. The first elastic member 38 applies a downward pulling force to the vertical sliding frame 34. In this embodiment, the first elastic member 38 is a vertically arranged spring.

[0071] A vertical buffer 39 is also installed on the frame 1. The buffer 39 is used to define the lowest position of the vertical sliding frame 34. The buffer 39 is located directly below the top crossbar.

[0072] The driving wheel 35 is connected to a movable frame 40, which is laterally slidably connected to the frame 1. A second elastic member 41 is provided between the movable frame 40 and the frame 1. The second elastic member 41 applies a pulling force to the movable frame 40 toward the friction wheel 33. In this embodiment, the driving wheel 35 is located to the right of the friction wheel 33. The second elastic member 41 causes the driving wheel 35 to move to the left. The second elastic member 41 is also a spring. A spacing adjustment rod 42 is provided between the movable frame 40 and the frame 1. The spacing adjustment rod 42 can adjust the minimum spacing between the driving wheel 35 and the friction wheel 33. In this embodiment, the spacing adjustment rod 42 is threadedly connected to the movable frame 40, and the free left end of the spacing adjustment rod 42 can abut against the frame 1 (or the spacing adjustment rod 42 can be threadedly connected to the frame 1, and the free end of the spacing adjustment rod 42 can abut against the movable frame 40. This method is also feasible and is a conventional solution that can be thought of by those skilled in the art and is not illustrated here).

[0073] 2. Added unloading device and rotary conveyor 2 for bottle delivery:

[0074] Specifically, the unloading device includes a robot with multiple suction cups. For example, the unloading device includes an unloading robot 61 and a re-inspection robot 62 mounted on the frame 1. Both the unloading robot 61 and the re-inspection robot 62 are located at the output end of the rotary conveyor 2. Suction cups are fixed to the output ends of the unloading robot 61 and the re-inspection robot 62. Bottles are transferred by applying negative pressure to the suction cups. Both the unloading robot 61 and the re-inspection robot 62 have vertical linear modules and horizontal linear modules. The output end movement direction of the horizontal linear module is perpendicular to the conveying direction of the rotary conveyor 2. The inspection machine is connected to an industrial computer, and the image acquisition component is connected to the industrial computer. The industrial computer is equipped with visual inspection technology. The industrial computer classifies the inspected bottles into qualified products, size-unqualified products, and appearance-unqualified products. The unloading robot 61 transfers the qualified products detected to the packaging table (not shown in the figure) set next to the detection machine, and the re-inspection robot 62 transfers the unqualified products detected to the packaging box 63 fixed on the detection machine frame 1.

[0075] The rotary conveyor 2 includes two chain-plate rotary conveyor lines, each of which is fixed with several support plates 21 evenly distributed along the rotary path. Each support plate 21 is formed with a V-shaped support opening, and the lifting seat 31 is located between the two rotary conveyor lines; a support rod 11 is also provided between the two rotary conveyor lines, and the support rod 11 is fixedly connected to the frame 1. The support rod 11 is located at the input end of the rotary conveyor line.

[0076] Two deflection-correcting plates 12 are also fixedly attached to the frame 1. These plates 12 are located on either side of the rotary conveyor 2 in the width direction. Each plate 12 has a V-shaped guide surface formed on its opposing sides. The V-shaped opening formed by these two guide surfaces faces the input end of the rotary conveyor line. The end of the support rod 11, located between the two rotary conveyor lines, is located below the two deflection-correcting plates 12.

[0077] Compared with the first embodiment, this embodiment also has the following functions:

[0078] First, during the inspection process, this solution allows bottles to be continuously transported to the rotating component 3 by the rotary conveyor 2, facilitating assembly-line inspection of the bottles by the rotary component 3. After inspection, qualified bottles are picked up by the unloading robot 61 and transported to the packaging station for subsequent packaging. Products that fail to meet the appearance standards are picked up by the re-inspection robot 62 and transported to the container 63. Products that fail to meet the size standards automatically fall into a recycling box placed below the rotary conveyor 2 as the rotary conveyor 2 rotates. This implementation enables assembly-line inspection of bottles and automatically separates bottles with different inspection structures after inspection, improving the inspection speed and classifying unqualified products, which can help reduce the final product scrap rate.

[0079] Second: before the bottle body is inspected, when the bottle body is transferred from other places to the rotary conveyor line, the position of the bottle body on the rotary conveyor line may be inconsistent, and the bottle body with a small height can easily fall off the rotary conveyor line. The setting of the support rod 11 in this embodiment greatly reduces the placement requirements of the bottle body, and also avoids the problem of scrapping of the bottle body due to falling from the rotary conveyor 2; in addition, the two correcting plates 12 set at the end section of the support rod 11 enable the bottle body to be positionally corrected under the guide surface of the correcting plate 12 before entering the upper part of the lifting seat 31, ensuring that all bottles are lifted by the lifting seat 31 at the same position for inspection, which is conducive to ensuring the accuracy of the inspection structure and reducing the difficulty of bottle inspection.

[0080] Third, when the lifting base 31 drives the bottle body to rise, the push rod 36 also rises synchronously with the lifting base 31. When the bottle body contacts the friction wheel 33, the push rod 36 also supports the height adjustment rod 37 on the vertical sliding frame 34, thereby ensuring that the upward force of the vertical sliding frame 34 and the friction wheel 33 mainly comes from the push rod 36, avoiding the problem of the bottle body being deformed or broken due to excessive pressure from the friction wheel 33 and the vertical sliding frame 34 (for soft and easily deformable bottles, deformation can be greatly reduced or even avoided, and for very fragile bottles, such as glass bottles, the problem of bottle breakage can be avoided).

[0081] Fourth, due to the setting of the height adjustment rod 37 on the vertical sliding frame 34, the minimum distance between the guide wheel 32 and the friction wheel 33 on the lifting seat 31 is changed by the adjustment of the height adjustment rod 37. The space created by the distance between the friction wheel 33 and the guide wheel 32 is used to accommodate the bottle body. That is, the existence of the height adjustment rod 37 enables the present inspection machine to adapt to the inspection requirements of bottles with different outer diameter specifications, thereby improving the practicality of the present inspection machine; at the same time, the pressure of the friction wheel 33 on the bottle body can be adjusted by adjusting the height adjustment rod 37, thereby ensuring that the bottle body has sufficient friction with the friction wheel 33 and reducing the probability of deformation or breakage of the bottle body. When the outer diameter of the bottle to be inspected does not change much, even if the maximum lifting stroke of the lifting base 31 is not adjusted, the present inspection machine can ensure that there is sufficient friction between the friction wheel 33 and the bottle body under the action of the first elastic member 38 so that the bottle body rotates with the friction wheel 33 (the first elastic member 38 always has a tendency to pull the friction wheel 33 downward, and the downward pulling tendency gives the friction wheel 33 a force to press the bottle body, thereby ensuring the friction between the two). The second elastic member 41 can also ensure that there is sufficient friction between the friction wheel 33 and the driving wheel 35 so that the friction wheel 33 rotates with the driving wheel 35 (the second elastic member 41 always has a tendency to pull the driving wheel 35 toward the friction wheel 33, and this tendency gives the driving wheel 35 a force to press the friction wheel 33, thereby ensuring the friction between the two). When the bottle size changes slightly, it is only necessary to adjust the height of the height adjustment rod 37 accordingly to carry out the inspection of bottles of the new size. The whole method is simple and convenient to operate.

[0082] Fifth: When the outer diameter of the bottle being inspected changes significantly, the maximum lifting stroke of the lifting seat 31 can be adjusted to adapt to the inspection requirements of the new specification of the bottle; or when the maximum lifting stroke of the lifting seat 31 remains unchanged (the highest position of the friction wheel 33 is maintained), the minimum distance between the driving wheel 35 and the friction wheel 33 can be adjusted by screwing the spacing adjustment rod 42, or the distance between the guide wheel 32 and the friction wheel 33 can be adjusted by adjusting the height adjustment rod 37, thereby ensuring that the friction wheel 33 can still be pressed against the driving wheel 35 and the friction wheel 33 is driven by the driving wheel 35 to rotate, which can also meet the inspection requirements of the new specification of the bottle, and this adjustment method is also very simple and convenient.

[0083] Example 3

[0084] Combine Figure 13 The third embodiment is improved on the basis of the second embodiment, specifically as follows: the heights of the bottle bottom image acquisition module 51, the bottle mouth image acquisition module 55, the bottle inner wall image acquisition module 53, and the bottle mouth inner side image acquisition module are all adjustable, and the distances between the bottle bottom image acquisition module 51, the bottle mouth image acquisition module 55, the bottle inner wall image acquisition module 53, and the bottle mouth inner side image acquisition module and the bottle body and the angles formed by the bottle bottom image acquisition module 51, the bottle mouth image acquisition module 55, the bottle inner wall image acquisition module 53, and the bottle mouth inner side image acquisition module and the bottle body are all adjustable.

[0085] Specifically in this embodiment: at least two fixing frames 502 are fixed on the frame 1, each fixing frame 502 is provided with a horizontal adjustment hole 5021, each image acquisition module includes a camera assembly 500 and a mounting frame 501, the mounting frame 501 is provided with a vertical adjustment hole 5012 and a horizontal arc hole 5011, the mounting frame 501 and the fixing frame 502 can be fixedly connected by bolts on the vertical adjustment hole 5012 and the horizontal adjustment hole 5021, and the camera assembly 500 can be fixed on the arc hole 5011 of the mounting frame 501.

[0086] In this embodiment, the height of the camera assembly 500 is adjusted by adjusting the installation position of the vertical adjustment hole 5012 of the mounting frame 501, and the distance between the camera assembly 500 and the bottle body is adjusted by adjusting the installation position of the mounting frame 501 on the horizontal adjustment hole 5021. The arc hole 5011 on the mounting frame 501 is provided to facilitate the adjustment of the shooting direction of the camera assembly 500.

[0087] Compared with the second embodiment, this embodiment enables the acquisition module of the image acquisition component to adjust the shooting position and shooting direction, thereby adapting to the detection requirements of bottles of different specifications, thereby improving the practicality of this solution.

[0088] Example 4

[0089] Combine Figure 14 Compared with the third embodiment, the fourth embodiment is further improved on the basis of the third embodiment. Specifically, a loading device 7 is installed at the input end of the rotary conveyor 2. By using the loading device 7, the bottles to be inspected can be transferred to the rotary conveyor 2. The loading device 7 can be a loading manipulator, a three-dimensional robot, a four-dimensional robot, a three-dimensional space mobile module, etc. with a suction cup loading structure.

[0090] Compared with the third embodiment, this embodiment also automates the loading of the bottle, thereby improving the automation level of the detection machine.

[0091] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A detection machine comprising a frame, a rotating component mounted on the frame, and an image acquisition component, wherein the rotating component comprises a lifting seat and a friction wheel, the lifting seat being connected to two self-rotating guide wheels, with a clearance space between the two guide wheels, characterized in that: The rotating component also includes a vertical sliding frame and a driver. The vertical sliding frame is vertically slidably connected to the frame, and the friction wheel is rotatably connected to the vertical sliding frame. After the friction wheel rises to the designed position, the driver drives the friction wheel to rotate. A top rod is fixedly connected to the lifting seat, and the top rod can support the vertical sliding frame; a height adjustment rod is provided between the vertical sliding frame and the top rod, and the height adjustment rod is installed on the vertical sliding frame or on the top rod, and the height adjustment rod can adjust the minimum distance between the top rod and the vertical sliding frame; a first elastic member is provided between the vertical sliding frame and the frame, and the first elastic member applies a downward pulling force to the vertical sliding frame; The driver includes a driving motor and a driving wheel. The output end of the driving motor is fixedly connected to the driving wheel, and the driving wheel can be connected to the friction wheel through friction transmission or meshing transmission.

2. The detection machine according to claim 1, characterized in that: The driving wheel and the friction wheel are connected by friction transmission. The driving wheel is connected to a movable frame, which is slidably connected to the frame. A second elastic member is provided between the movable frame and the frame, and the second elastic member gives the movable frame a pulling force close to the friction wheel.

3. The detection machine according to claim 2, characterized in that: A spacing adjustment rod is provided between the movable frame and the frame, and the spacing adjustment rod can adjust the minimum spacing between the driving wheel and the friction wheel.

4. The detection machine according to any one of claims 1 to 3, characterized in that: It also includes a feeding device and a rotary conveyor for bottle transportation. The feeding device is located at the output end of the rotary conveyor. The feeding device is used to take away qualified products and unqualified products on the rotary conveyor. The feeding device places qualified products and unqualified products separately.

5. The detection machine according to any one of claims 1 to 3, characterized in that: It also includes a rotary conveyor for bottle body transportation. The rotary conveyor includes two rotary conveyor lines. Each rotary conveyor line is fixed with several support plates evenly distributed along the rotary path. The lifting seat is located between the two rotary conveyor lines. A support rod is also provided between the two rotary conveyor lines, and the support rod is located at the input end of the rotary conveyor line.

6. The detection machine according to claim 5, characterized in that: The frame is also fixedly connected to two correcting plates, which are located on both sides of the rotary conveyor in the width direction and above a section of the support rod close to the rotating component. Guide surfaces are provided on the opposite surfaces of the two correcting plates, and the two guide surfaces are V-shaped.

7. The detection machine according to any one of claims 1 to 3, characterized in that: It also includes a loading device and a rotary conveyor for bottle transmission, wherein the loading device is used to transfer the bottle to the rotary conveyor.

8. The detection machine according to claim 7, characterized in that: The loading device adopts a loading manipulator or a robot or a space moving module.

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