An in-line bottle finish detection apparatus

Abstract

The application discloses an online bottle mouth end cover detection device, and belongs to the field of automatic equipment, which is used for solving the problems of low detection efficiency and accuracy. The online bottle mouth end cover detection device comprises a product conveying mechanism, a clamping mechanism, a cap screwing mechanism and a displacement detection device. The product conveying mechanism is provided with a detection station for receiving and conveying a bottle body with a bottle cap to the detection station; the clamping mechanism is arranged on the detection station and is used for fixing the bottle body on the detection station; the cap screwing mechanism is arranged above the clamping mechanism and comprises a clamping jaw for clamping the bottle cap and a driving motor for driving the clamping jaw to rotate, the driving motor is provided with a torque detection device, the torque detection device is signal-connected with the driving motor and is used for detecting a first torque value applied by the driving motor; and the displacement detection device is used for detecting a first height value of the bottle cap.

Description

Technical Field

[0001] This application relates to the field of automated equipment, and in particular to an online bottle cap detection device. Background Technology

[0002] In modern industrial manufacturing systems, the airtightness of product packaging plays a crucial role in ensuring product quality, extending shelf life, and ensuring safe use. Currently, some companies still use traditional manual capping processes to complete product packaging, which has revealed significant defects in large-scale production: due to the uncontrollability of manual operation, the capping process is prone to abnormalities such as seal failure due to incomplete tightening and structural damage caused by stripped threads.

[0003] Existing manual inspection methods suffer from low efficiency and accuracy. While simple torque testing devices can detect bottle caps, they typically only measure torque, which also limits their accuracy.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This application provides an online bottle cap detection device that can solve the problems of low detection efficiency and accuracy in existing technologies.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0009] An online bottle cap detection device is provided, the online bottle cap detection device comprising:

[0010] The product conveying mechanism is equipped with an inspection station for receiving and conveying bottles with caps to the inspection station;

[0011] A clamping mechanism is provided at the testing station to fix the bottle on the testing station;

[0012] A capping mechanism is disposed above the clamping mechanism, including a gripper for holding the bottle cap and a drive motor for driving the gripper to rotate. The drive motor is provided with a torque detection device, which is signal-connected to the drive motor and is used to detect a first torque value applied by the drive motor.

[0013] A displacement detection device is used to detect the first height value of the bottle cap.

[0014] In some embodiments, the clamping mechanism includes at least two clamping components, each clamping component including a clamping cylinder and a clamping arm connected to the piston rod of the clamping cylinder, the clamping arm being provided with a slot adapted to the shape of the bottle body; wherein, when inspecting the bottle cap, each clamping component drives the clamping arm through the clamping cylinder to clamp the bottle body on the inspection station from different directions to fix the bottle body.

[0015] In some embodiments, the gripper is provided with a clamping portion for contacting and clamping the bottle cap, and the clamping portion is provided with anti-slip texture.

[0016] In some embodiments, the product conveying mechanism includes a moving module and a positioning fixture disposed on the moving module, the positioning fixture being provided with a positioning groove for placing the bottle.

[0017] In some embodiments, the capping mechanism further includes a lifting mechanism connected to the drive motor for driving the drive motor and the gripper to move up and down.

[0018] In some embodiments, the torque detection device is a torque sensor.

[0019] In some embodiments, the drive motor is a force-controlled motor.

[0020] In some embodiments, the online bottle cap detection device further includes a control device, which is signal-connected to the capping mechanism, the displacement detection device, and the torque sensor, and is configured to receive a first torque value from the torque sensor and a first height value from the displacement detection device, and to determine the bottle cap status based on a second torque value and a second height value preset by the control device.

[0021] If the first torque value reaches the second torque value and the first height value reaches the preset second height value, then the bottle cap is determined to be in normal condition.

[0022] If the first torque value reaches the second torque value but the first height value does not reach the preset second height value, the bottle cap is determined to be in an abnormal state.

[0023] If the first torque value does not reach the second torque value but the first height value reaches the preset second height value, the bottle cap is determined to be in an abnormal state.

[0024] If the first torque value does not reach the second torque value and the first height value does not reach the preset second height value, then control the drive motor to perform a secondary tightening operation.

[0025] (III) Beneficial Effects

[0026] Compared with the prior art, the beneficial effects of the technical solution provided in this application include at least the following:

[0027] This online bottle cap inspection device solves the problems of low efficiency and accuracy in manual inspection, as well as the limitations and inaccuracies of simple torque detection devices. First, a clamping mechanism is installed at the inspection station to fix the bottle. Stable fixation of the bottle is crucial during inspection, preventing errors caused by bottle movement and improving the accuracy and reliability of the results. Second, this online bottle cap inspection device comprehensively evaluates the bottle cap's condition by measuring both its torque and height, thus improving inspection accuracy. The capping mechanism is positioned above the clamping mechanism and includes grippers for holding the bottle cap and a drive motor that rotates the grippers. The drive motor is equipped with a torque detection device. This torque detection device is signal-connected to the drive motor, enabling real-time detection of the initial torque applied to the bottle cap. Simultaneously, a displacement detection device detects the initial height of the bottle cap. By simultaneously detecting both torque and displacement—two key parameters—the device can evaluate the bottle cap's condition from different angles. For example, even if the torque is within the normal range, an abnormal height value may indicate an installation problem with the bottle cap, such as damaged threads or cap deformation. This multi-dimensional detection method greatly improves the accuracy of judging the bottle cap condition and effectively solves the problem of inaccurate detection by simple torque testing devices. Equally important, the online bottle cap inspection device of this application is equipped with a product conveying mechanism that can automatically receive and transport bottles with caps to the inspection station, realizing the automation of bottle conveying. It eliminates the need for manual handling of bottles one by one for inspection, greatly shortening the preparation time before inspection. At the same time, the product conveying mechanism can be connected to the production line, so as not to interrupt the production line, thus enabling online inspection, significantly improving the overall inspection efficiency and overcoming the problem of low efficiency of manual inspection methods. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a first-view perspective perspective view of the online bottle cap detection device in the embodiments of this application;

[0030] Figure 2 This is a perspective view of the online bottle cap detection device in the embodiments of this application from a second angle;

[0031] Figure 3 This is a front view of the online bottle cap detection device in the embodiments of this application;

[0032] Figure 4 This is a side view of the online bottle cap detection device in an embodiment of this application.

[0033] Figure label:

[0034] 1. Rack

[0035] 2. Product conveying mechanism

[0036] 21. Mobile Module

[0037] 22. Positioning fixture

[0038] 221. Positioning groove

[0039] 3. Clamping mechanism

[0040] 31. Clamping cylinder

[0041] 32. Clamping arm

[0042] 321. Card slot

[0043] 4. Capping mechanism

[0044] 41. Gripper

[0045] 411. Clamping part

[0046] 42. Drive motor

[0047] 421. Torque detection device

[0048] 43. Lifting mechanism

[0049] 431. Lifting Cylinder

[0050] 44. Motor mount

[0051] 45. Slide rail assembly

[0052] 5. Displacement detection device

[0053] 6. Control device

[0054] 7. Bottle

[0055] 70. Bottle cap

[0056] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0057] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0058] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0059] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0060] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0061] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0062] Existing manual inspection methods suffer from low efficiency and accuracy. While simple torque testing devices can detect bottle caps, they typically only measure torque, which also limits their accuracy.

[0063] To address the aforementioned technical problems, this embodiment provides an online bottle cap detection device.

[0064] Figure 1 This is a first-view perspective perspective view of the online bottle cap detection device in the embodiments of this application. Figure 2 This is a second-view perspective perspective view of the online bottle cap detection device in the embodiments of this application. Figure 3 This is a front view of the online bottle cap detection device in this embodiment of the application. Figure 4 This is a side view of the online bottle cap detection device in an embodiment of this application.

[0065] See Figures 1 to 4 As shown, the online bottle cap inspection device provided in this embodiment includes: a product conveying mechanism 2, a clamping mechanism 3, a capping mechanism 4, a displacement detection device 5, a control device 6, and a frame 1. Its core principle is to use the product conveying mechanism 2 to transport the bottle with the cap to be inspected to the inspection station, use the clamping mechanism 3 to fix the bottle, use the capping mechanism 4 to apply torque to the cap and detect the torque value, use the displacement detection device 5 to detect the cap height value, and finally use the control device 6 to determine the cap status by combining the torque and height detection results. If an abnormality is found, the drive motor 42 is controlled to perform a secondary tightening operation.

[0066] Frame 1 provides the mounting base for each component. Frame 1 can be made of metal, such as aluminum alloy, to ensure the stability and durability of the device.

[0067] Product conveying mechanism 2 is equipped with an inspection station, which is used to receive and convey bottles with caps to the inspection station.

[0068] For example, the product conveying mechanism 2 includes a moving module 21 and a positioning fixture 22 disposed on the moving module 21, the positioning fixture 22 being provided with a positioning groove 221 for placing the bottle.

[0069] Specifically, the aforementioned moving module 21 can be a lead screw module or other linear motion module, installed at a suitable position on the frame 1. The linear guide module features smooth movement and high precision, ensuring the accurate movement of the positioning fixture 22. The size and shape of the positioning groove 221 should be precisely designed according to the specifications of the bottle to be inspected, ensuring that the bottle can be stably placed in the positioning groove 221 and will not shake or shift during transport. During operation, the moving module 21 is activated, driving the positioning fixture 22 and the bottle on it to move, transporting the bottle to the inspection station. The moving module 21 can be driven by a motor, and its moving speed and stopping position can be precisely controlled by a control system to ensure the bottle accurately reaches the inspection station.

[0070] Clamping mechanism 3 is installed at the inspection station to fix the bottle on the inspection station.

[0071] For example, the clamping mechanism 3 includes at least two clamping components, each clamping component including a clamping cylinder 31 and a clamping arm 32 connected to the piston rod of the clamping cylinder 31. The clamping arm 32 is provided with a slot 321 adapted to the shape of the bottle. When inspecting the bottle cap, each clamping component drives the clamping arm 32 to clamp the bottle at the inspection station from different directions through the clamping cylinder 31 to fix the bottle.

[0072] Specifically, clamping cylinders 31 are installed on the frame 1 around the inspection station, ensuring that the piston rod of clamping cylinder 31 moves in a direction that allows clamping arms 32 to approach the bottle from different directions. When the bottle is transported to the inspection station, the clamping cylinder 31 is activated, causing the piston rod to extend and move the clamping arms 32 towards the bottle. The clamping arms 32 of each clamping component clamp the bottle from different directions through the slots 321, thereby fixing the bottle at the inspection station and preventing the bottle from moving during subsequent inspections, which would affect the accuracy of the inspection results.

[0073] To prevent damage to the bottle cap, a rubber gasket is fixedly installed on the inner side of the slot 321.

[0074] The capping mechanism 4 is located above the clamping mechanism 3 and includes a gripper 41 for holding the bottle cap and a drive motor 42 for driving the gripper 41 to rotate. The drive motor 42 is equipped with a torque detection device 421, which is signal-connected to the drive motor 42 and is used to detect the first torque value applied by the drive motor 42.

[0075] To facilitate the contact and disengagement of the gripper 41 with the bottle cap, the capping mechanism 4 also includes a lifting mechanism 43. The lifting mechanism 43 is connected to the drive motor 42 and is used to drive the drive motor 42 and the gripper 41 to move vertically. For example, the lifting mechanism 43 is a lifting cylinder 431 vertically mounted on the frame 1. The piston rod of the lifting cylinder 431 is connected to the motor mount 44 of the drive motor 42, and the motor mount 44 is connected to the frame 1 via a slide rail assembly 45 to guide the vertical movement of the drive motor 42 and the gripper 41. During testing, the gripper 41 opens, and the lifting cylinder 431 drives the gripper 41 to descend to the outside of the bottle cap; subsequently, the gripper 41 clamps the bottle cap, and the drive motor 42 drives the gripper 41 to rotate, thus rotating the bottle cap. After testing, the gripper 41 opens, and the lifting cylinder 431 drives the gripper 41 to rise and reset.

[0076] For example, gripper 41 can be an existing pneumatic gripper or an electric gripper.

[0077] The gripper 41 is provided with a gripping part 411, which is used to contact and grip the bottle cap. The gripping part 411 is provided with anti-slip texture.

[0078] Specifically, the anti-slip texture increases the friction between the gripper 41 and the bottle cap, preventing the cap from slipping during rotation. The gripper 41 can be made of a metal with sufficient strength and hardness, such as stainless steel, to ensure its durability and gripping stability. The anti-slip texture matches the pattern of the bottle cap, thereby improving the fit between the two and enhancing the anti-slip effect.

[0079] A force-controlled motor can be selected as the drive motor 42 and mounted on the frame 1 above the clamping mechanism 3, ensuring that the output shaft of the drive motor 42 is aligned with the rotation center of the gripper 41. The force-controlled motor can automatically adjust the output torque according to the load, improving the stability and accuracy of capping.

[0080] The torque sensing device can be a torque sensor. A torque sensor is mounted on the drive motor 42 and connected to it via a signal connection. The torque sensor can detect the torque applied to the bottle cap by the drive motor 42 in real time and convert it into an electrical signal, which is then transmitted to the control device 6.

[0081] During operation, the drive motor 42 is started, driving the gripper 41 to rotate, and the gripper 41 clamps the bottle cap for rotation. During the rotation, the torque sensor detects the first torque value applied by the drive motor 42 in real time and transmits it to the control device 6.

[0082] The displacement detection device 5 can be an existing vision inspection device, a laser displacement sensor, or a linear displacement sensor. It is installed at a location where the cap height can be accurately detected, such as above or to the side of the inspection station. Ensure that the detection direction of the displacement detection device 5 is aligned with the axial direction of the cap to accurately measure the initial height value of the cap. While the capping mechanism 4 rotates the cap, the displacement detection device 5 detects the initial height value of the cap in real time and transmits it to the control device 6.

[0083] Taking a laser displacement sensor as an example, the sensor can be installed directly above the detection station, so that the laser beam is vertically irradiated on the center of the bottle cap. This installation method can directly measure the vertical distance from the top of the bottle cap to the sensor's emitting surface, providing intuitive results and is suitable for detecting most common bottle cap shapes. For example, for round, flat-capped bottles, vertical installation can accurately obtain the cap's height information. The laser displacement sensor can also be installed on the side: if the bottle cap has a special shape, such as with a slanted edge or a protruding structure, measurements from above may not accurately reflect the actual height. In this case, a side installation method can be used. The sensor is installed at a suitable position on the side of the bottle cap, so that the laser beam irradiates the characteristic part of the cap at a certain angle, and the height is calculated using the triangulation principle. For example, when detecting bottle caps with threads and threads with a certain angle of inclination, side installation provides more accurate measurements. The product conveying mechanism 2 transports the bottle with the cap to the detection station and precisely positions the bottle using the positioning fixture 22 or clamping mechanism 3, ensuring the cap is within the measurement range of the laser displacement sensor. For example, using a positioning fixture 22 with a positioning groove 221, the bottle is placed into the positioning groove 221. The size and shape of the positioning groove 221 restrict the position of the bottle, ensuring that the position of the bottle cap is relatively fixed during each measurement. During detection, a laser emitter inside the sensor emits a laser beam that illuminates the surface of the bottle cap. The laser is reflected from the bottle cap surface, and the reflected light is received by a receiver inside the sensor. The receiver converts the received light signal into an electrical signal and amplifies and filters it to improve the signal quality and stability. The microprocessor inside the sensor calculates the distance between the sensor and the bottle cap surface using laser triangulation or laser echo analysis, based on the time difference between laser emission and reception or the change in the laser's position on the receiver. Using the plane of the detection station or a pre-set reference plane as a reference, the height of the bottle cap relative to the reference plane is calculated by measuring the distance from the sensor to the bottle cap surface and combining it with the known distance from the sensor to the reference plane. For example, if the distance from the sensor to the reference plane is H0, and the distance from the sensor to the bottle cap surface is d, then the bottle cap height H = H0. 0- d.

[0084] The control device 6 is selected as a controller with signal processing and logic judgment functions, such as a programmable logic controller (PLC) or a microcontroller, as the core component of the control device 6. The control device 6 is connected to the capping mechanism 4, the displacement detection device 5, and the torque sensor to ensure that the control device 6 can accurately receive the first height value from the displacement detection device 5 and the first torque value from the torque sensor, and control the capping mechanism 4 to operate.

[0085] The control device 6 presets a second torque value and a second height value as judgment criteria. After receiving the first torque value and the first height value, the control device 6 makes a judgment according to the following logic:

[0086] If the first torque value reaches the second torque value and the first height value reaches the preset second height value, the bottle cap is determined to be in normal condition. The control device 6 does not issue any additional commands, or controls the gripper 41 to open and the lifting cylinder 431 to reset, so that the gripper 41 can disengage from the bottle cap and the bottle 7 can continue to be conveyed forward.

[0087] If the first torque value reaches the second torque value but the first height value does not reach the preset second height value, the bottle cap is determined to be in an abnormal state, and the control device 6 can issue an alarm signal to prompt the operator to check.

[0088] If the first torque value does not reach the second torque value but the first height value reaches the preset second height value, the bottle cap is determined to be in an abnormal state, and the control device 6 will also issue an alarm signal.

[0089] If the first torque value does not reach the second torque value and the first height value does not reach the preset second height value, the control device 6 controls the drive motor 42 to perform a secondary tightening operation, and rotates the bottle cap 70 again until it reaches the normal state or if it is still abnormal after reaching the set maximum number of rotations, an alarm signal is issued.

[0090] In summary, the online bottle cap inspection device of this application solves the problems of low efficiency and low accuracy of manual inspection, as well as the single and inaccurate detection indicators of simple torque detection devices. First, a clamping mechanism 3 is installed at the inspection station to fix the bottle body at the inspection station. During the inspection process, the stable fixation of the bottle body is crucial, as it avoids detection errors caused by bottle shaking, thus improving the accuracy and reliability of the inspection results. Second, the online bottle cap inspection device of this application comprehensively evaluates the bottle cap condition by measuring both the torque and height values ​​of the cap, improving the accuracy of the inspection. The capping mechanism 4 is located above the clamping mechanism 3 and includes a gripper 41 for holding the bottle cap and a drive motor 42 for rotating the gripper 41. The drive motor 42 is equipped with a torque detection device 421. The torque detection device 421 is signal-connected to the drive motor 42 and can detect the first torque value applied to the bottle cap by the drive motor 42 in real time. Simultaneously, a displacement detection device 5 is installed to detect the first height value of the bottle cap. By simultaneously detecting the two key parameters of torque and displacement, this device can evaluate the condition of the bottle cap from different angles. For example, even if the torque is within the normal range, an abnormal height value may indicate an installation problem with the bottle cap, such as damaged threads or cap deformation. This multi-dimensional detection method greatly improves the accuracy of judging the bottle cap condition and effectively solves the problem of inaccurate detection by simple torque testing devices. Equally important, the online bottle cap detection device of this application is equipped with a product conveying mechanism 2, which can automatically receive and convey bottles with caps to the detection station, realizing the automation of bottle conveying. It eliminates the need for manual handling of bottles one by one for detection, greatly shortening the preparation time before detection. At the same time, the product conveying mechanism 2 can be connected to the production line, so as not to interrupt the production line, thus enabling online detection, significantly improving the overall detection efficiency and overcoming the problem of low efficiency of manual detection methods.

[0091] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0093] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An online bottle cap detection device, characterized in that, include: The product conveying mechanism is equipped with an inspection station for receiving and conveying bottles with caps to the inspection station; A clamping mechanism is provided at the testing station to fix the bottle on the testing station; A capping mechanism is disposed above the clamping mechanism, including a gripper for holding the bottle cap and a drive motor for driving the gripper to rotate. The drive motor is provided with a torque detection device, which is signal-connected to the drive motor and is used to detect a first torque value applied by the drive motor. A displacement detection device is used to detect the first height value of the bottle cap.

2. The online bottle cap detection device according to claim 1, characterized in that, The clamping mechanism includes at least two clamping components. Each clamping component includes a clamping cylinder and a clamping arm connected to the piston rod of the clamping cylinder. The clamping arm is provided with a slot adapted to the shape of the bottle. When inspecting the bottle cap, each clamping component drives the clamping arm to clamp the bottle on the inspection station from different directions through the clamping cylinder to fix the bottle.

3. The online bottle cap detection device according to claim 1, characterized in that, The gripper is provided with a clamping part, which is used to contact and clamp the bottle cap, and the clamping part is provided with anti-slip texture.

4. The online bottle cap detection device according to claim 1, characterized in that, The product conveying mechanism includes a moving module and a positioning fixture disposed on the moving module. The positioning fixture is provided with a positioning groove for placing the bottle.

5. The online bottle cap detection device according to claim 1, characterized in that, The capping mechanism also includes a lifting mechanism, which is connected to the drive motor and is used to drive the drive motor and the gripper to move up and down.

6. The online bottle cap detection device according to claim 1, characterized in that, The torque detection device is a torque sensor.

7. The online bottle cap detection device according to claim 1, characterized in that, The drive motor is a force-controlled motor.

8. The online bottle cap detection device according to any one of claims 1 to 7, characterized in that, The online bottle cap detection device also includes a control device, which is connected to the capping mechanism, the displacement detection device, and the torque sensor. The control device is configured to receive a first torque value from the torque sensor and a first height value from the displacement detection device, and to determine the bottle cap status based on a preset second torque value and second height value. If the first torque value reaches the second torque value and the first height value reaches the preset second height value, then the bottle cap is determined to be in normal condition. If the first torque value reaches the second torque value but the first height value does not reach the preset second height value, the bottle cap is determined to be in an abnormal state. If the first torque value does not reach the second torque value but the first height value reaches the preset second height value, the bottle cap is determined to be in an abnormal state. If the first torque value does not reach the second torque value and the first height value does not reach the preset second height value, then control the drive motor to perform a secondary tightening operation.

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