Cigarette packaging system

Abstract

The utility model relates to a cigarette packaging system, which comprises a visual inspection device, a detection device and a control device, the observation window is arranged at the first end, located in the first direction, of the shell; the image acquisition part is arranged in the closed cavity and is used for acquiring an image of the object to be detected through the observation window; the light source is arranged in the closed cavity, and light provided by the light source is irradiated to the object to be detected through the observation window. The observation window is arranged on the shell and is matched with the shell to form a closed cavity so as to protect components in the shell; the light provided by the light source irradiates the to-be-detected object outside the shell through the observation window, so that the brightness of the to-be-detected object is improved, and the quality of an image acquired by the image acquisition piece is improved; the image acquisition part acquires the image of the object to be detected through the observation window and processes the image, so that reliable image data can be provided for subsequent automatic analysis, the detection accuracy and efficiency are improved, and the device is suitable for equipment running at a high speed and is relatively high in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the tobacco technical field especially, relate to a cigarette packing system. BACKGROUND

[0002] With the development of tobacco industry and the demand of consumer market, the improvement of automation and intelligent level is crucial for improving production efficiency and product quality. In the process of tobacco packaging, double aluminum package packaging machine as a high -efficient packaging equipment is widely used in the automatic packaging of tobacco products. The model can realize high -speed continuous packaging operation, ensures the continuity and stability of production.

[0003] However, in the actual production application, double aluminum package packaging machine also faces some problems to be solved. The most prominent is the quality detection problem of cigarettes. The traditional detection method often depends on the early technical means, and these methods are not up to the task when facing the high-speed production line. Specifically, in the cigarette group rotating tower mold box, the traditional detection means is difficult to monitor the state of cigarettes in real time and accurately, especially for the identification ability of subtle defects such as empty head or missing mouth. In addition, although the artificial detection method can make up for the deficiency of technical means to a certain extent, this method is low in efficiency, and is easily affected by the subjective judgment of the operator, resulting in inconsistency and unreliability of the detection result. SUMMARY

[0004] Some embodiments of the utility model put forward a cigarette packing system for improving the real-time accuracy of detection.

[0005] In one aspect of the utility model, a visual detection device is provided, comprising:

[0006] A shell forms a closed cavity;

[0007] An observation window is provided at the first end of the shell in the first direction;

[0008] An image acquisition unit is provided in the closed cavity, and the image acquisition unit acquires the image of the object to be detected through the observation window; and

[0009] A light source is provided in the closed cavity, and the light provided by the light source is irradiated to the object to be detected through the observation window.

[0010] In some embodiments, the optical axis of the light source has an included angle greater than zero with the first direction.

[0011] In some embodiments, the light source is provided laterally or in front of the image acquisition unit.

[0012] In some embodiments, the image acquisition unit includes a lens, and the optical axis of the lens has an included angle greater than zero with the first direction.

[0013] In some embodiments, the visual detection device further comprises a plane mirror disposed in the closed cavity and located on a first sidewall of the housing in a second direction, the plane mirror is configured to display an image of the object to be detected, the lens is configured to capture the image on the plane mirror, and the second direction is perpendicular to the first direction.

[0014] In some embodiments, the light source is disposed laterally to the lens, and an optical axis of the light source is perpendicular to an optical axis of the lens.

[0015] In some embodiments, the image capturing unit comprises a lens, and an optical axis of the lens is parallel to the first direction.

[0016] In some embodiments, the light source is disposed in front of the lens and located on a sidewall of the housing in a second direction, and the second direction is perpendicular to the first direction.

[0017] In some embodiments, the light source comprises a first light source and a second light source, the first light source is disposed on a first sidewall of the housing in a second direction, and the second light source is disposed on a second sidewall of the housing in the second direction.

[0018] In some embodiments, the first light source and the second light source are symmetrically disposed, and an optical axis of the first light source and an optical axis of the second light source each have an included angle greater than zero with the first direction.

[0019] In some embodiments, the image capturing unit further comprises a camera electrically connected to the lens, and the camera is configured to receive and process the image captured by the lens.

[0020] In some embodiments, the visual detection device further comprises a cable socket interface disposed outside a second end of the housing in the first direction or outside a second sidewall of the housing in a second direction, and the first direction is perpendicular to the second direction.

[0021] In one aspect of the present application, a cigarette packaging system is provided, comprising:

[0022] A turret is rotatably arranged, and a plurality of stations are provided on the turret;

[0023] A mold box is arranged on the station of the turret, and the mold box is filled with cigarettes; and

[0024] The above-mentioned visual detection device is arranged on the side of the turret, and the visual detection device is configured to detect the cigarettes, and the cigarettes are the object to be detected.

[0025] In some embodiments, the number of visual inspection devices is at least two, at least one visual inspection device is arranged at the filter end of the cigarette, and at least one visual inspection device is arranged at the tobacco end of the cigarette.

[0026] Based on the above technical solutions, the utility model has at least the following beneficial effects:

[0027] In some embodiments, the image acquisition component and the light source are packaged in the housing, the observation window is arranged on the housing and cooperates with the housing to form a closed cavity to protect the components in the housing; the observation window allows light to pass through, the light provided by the light source is irradiated on the object to be detected outside the housing through the observation window, the brightness of the object to be detected is improved, and thus the image quality collected by the image acquisition component is improved; the image acquisition component collects the image of the object to be detected through the observation window and processes the image, which can provide reliable image data for subsequent automatic analysis, improves the accuracy and efficiency of detection, is suitable for high-speed running equipment and has strong adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and are used to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0029] Figure 1 It is a schematic view of the visual inspection device provided according to the first embodiment of the utility model;

[0030] Figure 2 It is a schematic view of the visual inspection device provided according to the first embodiment of the utility model; Figure 1 It is a schematic view of the visual inspection device provided according to the first embodiment of the utility model;

[0031] Figure 3 It is a schematic view of the visual inspection device provided according to the second embodiment of the utility model;

[0032] Figure 4 It is a schematic view of the visual inspection device provided according to the second embodiment of the utility model; Figure 3 It is a schematic view of the visual inspection device provided according to the second embodiment of the utility model;

[0033] Figure 5a It is a schematic view of the visual inspection device provided according to the second embodiment of the utility model; Figure 5b It is a schematic view of the visual inspection device provided according to the second embodiment of the utility model;

[0034] Figure 6 It is a schematic view of the tobacco end baffle of the cigarette packaging system provided according to some embodiments of the utility model.

[0035] The reference signs in the drawings are explained as follows:

[0036] 1 - housing; 2 - viewing window; 3 - image acquisition; 31 - lens; 32 - camera; 4 - light source; 41 - first light source; 42 - second light source; 5 - flat mirror; 6 - cable socket interface; 7 - support; 8 - baffle; 9 - cigarette.

[0037] It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale. Furthermore, identical or similar reference numerals are used to denote identical or similar components. DETAILED DESCRIPTION

[0038] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative in nature and is in no way intended to limit the application, its application or uses, nor is it intended to limit the definition of the application provided in the claims. The application can be implemented in any of numerous ways, not just the embodiments described here. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. It should be noted that the relative arrangement of components and steps, the components of materials, numerical expressions, and numerical values set forth in these embodiments are to be interpreted as merely illustrative, unless otherwise specifically stated, and are not to be construed as limiting.

[0039] The terms "first", "second", and similar terms in the present application do not denote any order, number or importance, but are only used to distinguish different parts. The terms "comprise", "comprising", and similar terms mean that the elements before the term encompass the elements listed after the term, and do not exclude the possibility of also encompassing other elements. "Up", "down", "left", "right", and the like are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] In the present application, when it is described that a specific device is located between a first device and a second device, there can be an intervening device between the specific device and the first device or the second device, or there can be no intervening device. When it is described that a specific device is connected to other devices, the specific device can be directly connected to the other devices without an intervening device, or it can not be directly connected to the other devices with an intervening device.

[0041] All terms used in the present application, including technical terms or scientific terms, have the same meaning as understood by those skilled in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise specifically defined here.

[0042] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification where appropriate.

[0043] The double-aluminum package packaging machine is a high-speed cigarette packaging equipment, mainly used for packaging cigarettes into hard box packaging with double-layer aluminum foil paper. This packaging method not only improves the appearance of the packaging, but also enhances the moisture-proof and fresh-keeping performance of the product.

[0044] The general working process of the double-aluminum package packaging machine is as follows: the cigarettes coming from the upstream equipment (such as a cigarette making machine) are sent into the double-aluminum package packaging machine, in which the cigarettes are arranged in a specified number and arrangement, and are pushed into the mold box of the cigarette group rotating tower by the pushing mechanism. After the mold box is filled with cigarettes, the rotating tower drives the mold box to rotate, so that the cigarettes in the mold box are pushed into the first layer of aluminum foil paper packaging station, where the first layer of aluminum foil paper wraps the outside of the cigarettes. The cigarettes wrapped by the first layer of aluminum foil paper are pushed into the second layer of aluminum foil paper packaging station, where the second layer of aluminum foil paper wraps the outside of the first layer of aluminum foil paper. Then, the cigarettes enter the hard box packaging station for hard box packaging.

[0045] Among them, the cigarette group rotating tower mold box is a key component in tobacco packaging machinery, which is used for arranging, transferring and positioning cigarettes during cigarette packaging. The cigarette group rotating tower mold box includes a rotating tower and a mold box. The rotating tower is a rotating multi-station device, and each station has a mold box. The mold box has a cavity for accommodating and arranging cigarettes.

[0046] Since the cigarettes in the mold box need to be arranged correctly and accurately, a detection device is needed to detect the arrangement and number of cigarettes. The detection device in the related art is difficult to be applied to a high-speed production line, and cannot accurately monitor the state of the cigarettes in real time, especially for the identification of subtle defects such as empty head or missing mouth.

[0047] Therefore, some embodiments of the present application provide a visual detection device and a cigarette packaging system, wherein the visual detection device can accurately detect the state of the cigarettes in real time, and is suitable for a high-speed cigarette packaging system.

[0048] Reference Figures 1 to 4 In some embodiments, the visual detection device includes a housing 1, an observation window 2, an image acquisition component 3, and a light source 4.

[0049] The housing 1 forms a closed cavity.

[0050] The observation window 2 is arranged at the first end of the housing 1 in the first direction X.

[0051] The image acquisition component 3 is arranged in the closed cavity and acquires images of the to-be-detected objects through the observation window 2.

[0052] The light source 4 is arranged in the closed cavity, and the light provided by the light source 4 irradiates the object to be detected through the observation window 2.

[0053] In the above embodiment, the image acquisition device 3 and the light source 4 are packaged in the shell 1, and the observation window 2 is arranged on the shell 1 to form a closed cavity with the shell 1 to protect the components in the shell 1. The observation window 2 allows light to pass through, and the light provided by the light source 4 irradiates the object to be detected located outside the shell 1 through the observation window 2, and the light source 4 is used to provide illumination to improve the image quality. The image acquisition device 3 acquires the image of the object to be detected through the observation window 2 and processes it, which can provide reliable image data for subsequent automatic analysis, improve the accuracy and efficiency of detection, and is suitable for high-speed cigarette packaging equipment and has strong adaptability.

[0054] In some embodiments, the first direction X is the length extension direction of the shell 1, the second direction Y is the height direction of the shell 1, and the third direction Z is the thickness direction of the shell 1. The first direction X is perpendicular to the second direction Y, the second direction Y is perpendicular to the third direction Z, and the third direction Z is perpendicular to the first direction Z.

[0055] In some embodiments, the observation window 2 is made of transparent glass.

[0056] In some embodiments, the light source 4 includes an LED light source for providing illumination to improve image quality.

[0057] In some embodiments, the optical axis of the light source 4 has an included angle greater than zero with the first direction X.

[0058] In a space-limited environment such as a narrow space, the volume of the shell 1 needs to be as small as possible, and the relative position with the object to be detected also needs to be adapted to the narrow space, which may cause the optical axis of the light source 4 to be unable to be perpendicular to the observation window 2. Therefore, the optical axis of the light source 4 can be arranged to have an included angle greater than zero with the first direction X, so that the light source 4 can irradiate the object to be detected through the observation window 2, and also can reasonably utilize the space in the shell 1 to realize miniaturization of the visual detection device, which is suitable for space-limited environments.

[0059] Reference Figure 1 and Figure 3 In some embodiments, the light source 4 is arranged laterally or in front of the image acquisition device 3.

[0060] Reference Figure 1 In some embodiments, the image acquisition device 3 includes a lens 31, and the optical axis of the lens 31 has an included angle greater than zero with the first direction X.

[0061] In a space-limited environment such as a narrow space, the volume of the shell 1 needs to be as small as possible, and the relative position with the object to be detected also needs to be adapted to the narrow space, which may cause the optical axis of the lens 31 to be unable to be perpendicular to the observation window 2. Therefore, the optical axis of the lens 31 can be set to have an included angle greater than zero with the first direction X, so that the lens 31 can not only collect the image of the object to be detected through the observation window 2, but also reasonably utilize the space in the shell 1, realize the miniaturization of the visual detection device, and be suitable for space-limited environments.

[0062] In some embodiments, the lens 31 includes an optical lens for focusing the image of the object to be detected.

[0063] Reference Figure 1 In some embodiments, the visual detection device further includes a plane mirror 5 disposed in the closed cavity and located on the first side wall of the shell 1 in the second direction Y. The plane mirror 5 is configured to display the image of the object to be detected, and the lens 31 is configured to collect the image on the plane mirror 5. The second direction Y is perpendicular to the first direction X.

[0064] In the above-mentioned embodiments, since the optical axis of the lens 31 has an included angle greater than zero with the first direction X, the lens 31 cannot directly collect the image of the object to be detected through the observation window 2. Therefore, the plane mirror 5 is arranged on the first side wall of the shell 1 in the second direction Y, and the image is reflected from a specific angle through the plane mirror 5. The lens 31 obtains the image of the object to be detected by collecting the image on the plane mirror 5. The lens 31 cooperates with the plane mirror 5 to capture the image of the object to be detected in front of the transparent glass window at a certain angle, and the light provided by the light source 4 illuminates the object to be detected at a certain angle. Therefore, more images of the object to be detected and the surrounding area can be captured, which is beneficial to judging whether the object to be detected has quality problems through image analysis.

[0065] In some embodiments, the light source 4 is arranged laterally to the lens 31, and the optical axis of the light source 4 is perpendicular to the optical axis of the lens 31.

[0066] In the above-mentioned embodiments, the cooperation of the light source 4 and the lens 31 can not only facilitate the lens 31 to collect the image of the object to be detected, but also reasonably utilize the space in the shell 1, realize the miniaturization of the visual detection device.

[0067] Reference Figure 3 In some embodiments, the image collection member 3 includes the lens 31, and the optical axis of the lens 31 is parallel to the first direction X.

[0068] When the space in the shell 1 allows, the optical axis of the lens 31 is parallel to the first direction X, and the lens 31 can directly collect the image of the object to be detected in front of the observation window 2 through the observation window 2.

[0069] In some embodiments, the light source 4 is arranged in front of the lens 31 and on the side wall of the housing 1 in the second direction Y, which is perpendicular to the first direction X.

[0070] In the above embodiments, the light source 4 is arranged in front of the lens 31 and on the side wall of the housing 1 in the second direction Y, which can reasonably utilize the space in the housing 1.

[0071] In some embodiments, the light source 4 includes a first light source 41 and a second light source 42, the first light source 41 is arranged on the first side wall of the housing 1 in the second direction Y, and the second light source 42 is arranged on the second side wall of the housing 1 in the second direction Y.

[0072] In the above embodiments, the light source 4 is arranged in front of the lens 31 and on the side wall of the housing 1 in the second direction Y, and the light provided by the light source 4 cannot directly illuminate the object to be detected through the observation window 2. Therefore, in order to improve the lighting quality, two light sources are arranged, the first light source 41 is arranged on the first side wall of the housing 1 in the second direction Y, and the second light source 42 is arranged on the second side wall of the housing 1 in the second direction Y. Through the cooperation of the two light sources, the lighting quality is improved.

[0073] In some embodiments, the first light source 41 and the second light source 42 are symmetrically arranged, and the optical axis of the first light source 41 and the optical axis of the second light source 42 both have an included angle greater than zero with the first direction X.

[0074] In the above embodiments, the optical axis of the first light source 41 and the optical axis of the second light source 42 both have an included angle greater than zero with the first direction X, which is beneficial to the first light source 41 and the second light source 42 to illuminate the object to be detected through the observation window 2, and improves the definition of the image of the object to be detected.

[0075] In some embodiments, the image acquisition device 3 further includes a camera 32, the camera 32 is electrically connected to the lens 31, and the camera 32 is configured to receive and process the image collected by the lens 31.

[0076] In some embodiments, the camera 32 includes an industrial camera.

[0077] In some embodiments, the visual detection device further includes a cable socket interface 6, the cable socket interface 6 is arranged on the outside of the second end of the housing 1 in the first direction X. Alternatively, the cable socket interface 6 is arranged on the outside of the second side wall of the housing 1 in the second direction Y. The first direction X is perpendicular to the second direction Y.

[0078] In the above embodiments, the cable socket interface 6 is used to connect external power supply and data transmission lines.

[0079] In some embodiments, the visual detection device further comprises a bracket 7 arranged in the housing 1 for fixing the image acquisition unit 3. Alternatively, the light source 4 can also be arranged on the bracket 7.

[0080] Some embodiments of the utility model also provide a cigarette packaging system, which comprises a turret, a mold box, and the visual detection device in any of the above embodiments.

[0081] The turret is rotatably arranged, and a plurality of stations are arranged on the turret. The mold box is arranged on the station of the turret, and the mold box is used for filling the cigarettes 9. The visual detection device is arranged on the side of the turret, and the visual detection device is configured to detect the cigarettes 9 in the mold box. The cigarettes 9 are to-be-detected objects.

[0082] The visual detection device is configured to detect the tobacco side (refer to Figure 5a ) of the cigarette 9 and the filter side (refer to Figure 5b ) of the cigarette 9.

[0083] The visual detection device provided in the utility model embodiment is integrated, a closed cavity is formed through the housing 1, the image acquisition unit 3 and the light source 4 and the like arranged in the closed cavity, the image acquisition unit 3 and the light source 4 are small-sized products as far as possible, the volume of the housing 1 is reduced as far as possible, the small-sized visual detection device is realized, and the housing 1 can protect the internal elements and reduce the influence of dust on site.

[0084] In the visual detection device, the image acquisition unit 3 and the light source 4 are packaged in the housing 1, the observation window 2 allows light to pass through and is used for cooperating with the housing 1 to form a closed cavity to protect the components in the housing 1. The light emitted by the light source 4 is irradiated on the to-be-detected object located outside the housing 1 through the observation window 2, which is used for providing illumination and improving the image quality. The image acquisition unit 3 collects the image of the to-be-detected object through the observation window 2 and processes it, which can provide reliable image data for subsequent automatic analysis and improve the precision and efficiency of detection. Therefore, the visual detection device provided in the utility model embodiment is suitable for high-speed running equipment and has strong adaptability, and is especially suitable for occasions with limited space and high-precision visual detection.

[0085] With reference to Figure 6 , the visual detection device provided in the utility model embodiment can be arranged on the side of the turret, for example, on the baffle 8 of the tobacco side, which is used for detecting the cigarettes 9 in the mold box and collecting the images of the empty head and the missing mouth of the cigarette 9, and providing reliable data support for subsequent automatic analysis through accurate image acquisition.

[0086] The visual detection device provided in the utility model embodiment has small volume and high-precision imaging capability, and can ensure the quality of each cigarette group without affecting the speed of the production line.

[0087] In some embodiments, the number of visual inspection devices is at least two, at least one visual inspection device is arranged at the filter end of the cigarette 9, and at least one visual inspection device is arranged at the tobacco end of the cigarette 9.

[0088] Referring to Figure 5a and Figure 5b , one end of the cigarette 9 is provided with a filter, which is the filter end, and the other end of the cigarette 9 can be seen tobacco, which is the tobacco end. The side where the filter end of the cigarette 9 is located is the filter side, and the side where the tobacco end of the cigarette 9 is located is the tobacco side.

[0089] Two specific embodiments of the visual inspection device are described in detail below.

[0090] Referring to Figure 1 and Figure 2 , the first embodiment of the visual inspection device is arranged at the tobacco side, which includes a housing 1, an observation window 2, an image acquisition unit 3, a light source 4, a plane mirror 5, a cable socket interface 6, and a bracket 7.

[0091] The observation window 2 is arranged at the first end of the housing 1 in the first direction X, and the image acquisition unit 3, the light source 4, the plane mirror 5, and the bracket 7 are arranged in the closed cavity formed by the housing 1. The image acquisition unit 3 and the light source 4 are arranged on the bracket 7, and the bracket 7 is arranged on the inner wall of the housing 1. The plane mirror 5 is located on the first side wall of the housing 1 in the second direction Y. The image acquisition unit 3 includes a lens 31 and a camera 32. The optical axis of the lens 31 has an included angle greater than zero with the first direction X. The lens 31 is directed towards the plane mirror 5. The light source 4 is arranged laterally to the lens 31, and the optical axis of the light source 4 is perpendicular to the optical axis of the lens 31. The light source 4 is arranged obliquely relative to the first direction X, generally directed towards the observation window 2 and the second side wall of the housing 1 in the second direction Y. The cable socket interface 6 is arranged outside the second end of the housing 1 in the first direction X. According to the space condition on site, the signal cable of the image acquisition unit 3, the trigger signal cable, and the cable of the light source 4 are all led out from the second end of the housing 1 through the cable socket interface 6.

[0092] The lens 31 captures the image of the tobacco end of the cigarette 9 in front of the observation window 2 by mirror imaging through the plane mirror 5 at a certain angle, and the light provided by the light source 4 also irradiates the cigarette 9 at a certain angle. When the cigarette 9 is empty, the lens 31 will capture a part of the white tipping paper, the greater the degree of emptiness of the cigarette 9, the smaller the area of the captured tobacco region, and the larger the area of the white tipping paper region. The system determines whether the cigarette 9 is empty according to the area of the captured tobacco region image, and further determines whether the cigarette 9 has a quality problem. Figure 5a The captured image of the tobacco end of the cigarette 9 is shown in FIG. 2.

[0093] Referring to Figure 3 and Figure 4In the second embodiment of the visual inspection device, the visual inspection device is arranged on the filter side and comprises a housing 1, an observation window 2, an image acquisition unit 3, a first light source 41, a second light source 42, a cable socket interface 6, and a bracket 7.

[0094] The observation window 2 is arranged at the first end of the housing 1 in the first direction X, and the image acquisition unit 3, the first light source 41, the second light source 42, and the bracket 7 are arranged in the closed cavity formed by the housing 1. The image acquisition unit 3 is arranged on the bracket 7, and the bracket 7 is arranged on the inner wall of the housing 1. The image acquisition unit 3 comprises a lens 31 and a camera 32. The optical axis of the lens 31 is parallel to the first direction X. The front of the lens 31 is opposite the observation window 2. The first light source 41 and the second light source 42 are arranged in front of the lens 31, the first light source 41 is arranged on the first side wall of the housing 1 in the second direction Y, and the second light source 42 is arranged on the second side wall of the housing 1 in the second direction Y. The optical axis of the first light source 41 and the optical axis of the second light source 42 both have an included angle greater than zero with the first direction X. The cable socket interface 6 is arranged on the outside of the second side wall of the housing 1 in the second direction Y. According to the space condition on site, the signal cable of the image acquisition unit 3, the trigger signal cable, and the cable of the light source 4 are all led out from the second side wall of the housing 1 in the second direction Y through the cable socket interface 6.

[0095] The first light source 41 and the second light source 42 simultaneously illuminate the cigarette 9 at the front end of the observation window 2 in a low-angle illumination manner, and the lens 31 of the image acquisition unit 3 vertically captures the image of the end of the cigarette. When there is a missing cigarette, a missing filter, or a reversed cigarette in the mold box, a region with a significantly darkened color will appear in the image captured by the system, which is obviously different from the white image of the normal filter side. The system determines that the cigarette package has a defect according to this. Figure 5b The captured image of the filter end of the cigarette 9.

[0096] In the first embodiment and the second embodiment described above, the visual inspection device is designed to be small and integrated and sealed, and is compact in size. The length, height, and thickness of the visual inspection device on the tobacco side are 75mmx60mmx50mm, and the length, height, and thickness of the visual inspection device on the filter side are 70mmx67mmx50mm, which meets the space limitation requirements of the double-aluminum package packaging machine and is convenient for on-site maintenance and cleaning. In addition, the visual inspection device is also provided with a cable socket interface 6, which facilitates the connection of the signal transmission cable and further improves the practicality and flexibility of the device. Through the optimization design, the limitations of the traditional detection means on the high-speed production line are effectively solved, and the detection accuracy and efficiency are improved.

[0097] Reference Figure 6Since the cigarettes in two adjacent mold boxes of the turret need to be placed in the same cigarette case, two visual detection devices need to detect the quality of the cigarettes in the two mold boxes at the same time, and the center distance L of the two mold boxes is about 86.5 mm, so it is required to arrange two visual detection devices in the space with the center distance L, so that the two visual detection devices do not interfere with each other. The conventional visual probe is large in size and cannot meet the use requirement, and therefore, a small-sized visual probe needs to be designed to meet the use of the machine type.

[0098] With reference to Figures 1 to 4 The thickness of the two small-sized visual detection devices provided in the embodiments of the present application is 50 mm, which can meet the use requirement. Figure 6 The two visual detection devices are installed on one side of the seven-corner wheel, and the center distance is not more than 86.5 mm.

[0099] In the cigarette packaging system, the visual detection device is used to collect the images of the empty head and the missing cigarette of the cigarettes 9 in the mold box of the cigarette group turret. Through this accurate image collection method, reliable image data can be provided for subsequent automatic analysis, which not only improves the detection accuracy, but also greatly enhances the processing capacity of the automatic system, thereby ensuring that each cigarette group can be strictly and effectively controlled in quality in the high-speed production environment.

[0100] The visual detection device provided in the embodiments of the present application encapsulates all components through the shell 1, has a small-sized and integrated sealing design, and can be applied to a visual detection place with limited space and high precision.

[0101] The visual detection device provided in the embodiments of the present application considers two key factors of production efficiency and quality guarantee, has a small size and high-precision imaging capacity, and can ensure that each cigarette group is strictly and accurately detected without affecting the speed of the production line in the high-speed production environment, thereby ensuring the quality of each cigarette group.

[0102] Based on the above embodiments of the present application, one technical feature of one embodiment can be beneficially combined with one or more other embodiments without explicit negation or conflict.

[0103] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A cigarette pack system, characterized in that, The application relates to a visual inspection device for a cigarette production line. The device comprises: a turret rotatably arranged, wherein a plurality of workstations are arranged on the turret; a mold box filled with cigarettes and arranged on the workstation of the turret; and a visual inspection device arranged on the side of the turret, wherein the visual inspection device is configured to detect the cigarettes as the objects to be detected, and the number of the visual inspection devices is at least two, at least one visual inspection device is arranged on the filter side of the cigarettes, and at least one visual inspection device is arranged on the tobacco side of the cigarettes. The visual inspection device comprises: a housing (1) forming a closed cavity; a viewing window (2) arranged on the first end of the housing (1) in a first direction (X); an image acquisition unit (3) arranged in the closed cavity and configured to acquire the image of the object to be detected through the viewing window (2); and a light source (4) arranged in the closed cavity, wherein the light provided by the light source (4) is irradiated to the object to be detected through the viewing window (2).

2. The cigarette pack system of claim 1, wherein The cigarettes in two adjacent mold boxes are arranged in the same cigarette box, the center distance between the two adjacent mold boxes is L, and two visual inspection devices are arranged in the space with the center distance L.

3. The cigarette pack system of claim 1, wherein The optical axis of the light source (4) has an included angle greater than zero with the first direction (X).

4. The cigarette pack system of claim 1, wherein The light source (4) is arranged on the side or front of the image acquisition unit (3).

5. The cigarette pack system of claim 4, wherein, The image acquisition unit (3) comprises a lens (31), and the optical axis of the lens (31) has an included angle greater than zero with the first direction (X).

6. The cigarette pack system of claim 4, wherein The device further comprises a plane mirror (5) arranged in the closed cavity and located on the first side wall of the housing (1) in a second direction (Y), wherein the plane mirror (5) is configured to display the image of the object to be detected, the lens (31) is configured to acquire the image on the plane mirror (5), and the second direction (Y) is perpendicular to the first direction (X).

7. The cigarette pack system of claim 1, wherein The light source (4) is arranged on the side of the lens (31), and the optical axis of the light source (4) is perpendicular to the optical axis of the lens (31).

8. The cigarette pack system of claim 7, wherein, The image acquisition unit (3) comprises a lens (31), and the optical axis of the lens (31) is parallel to the first direction (X).

9. The cigarette pack system of claim 8, wherein, The light source (4) is arranged in front of the lens (31) and on the side wall of the housing (1) in the second direction (Y), and the second direction (Y) is perpendicular to the first direction (X).

10. The cigarette pack system of claim 9, wherein, The light source (4) comprises a first light source (41) and a second light source (42), the first light source (41) is arranged on the first side wall of the housing (1) in the second direction (Y), and the second light source (42) is arranged on the second side wall of the housing (1) in the second direction (Y).

11. The cigarette packaging system of any one of claims 4 to 10, wherein, The first light source (41) and the second light source (42) are symmetrically arranged, the optical axis of the first light source (41) and the optical axis of the second light source (42) both have an included angle greater than zero with the first direction (X). The image acquisition unit (3) further comprises a camera (32) electrically connected to the lens (31), and the camera (32) is configured to receive and process the image acquired by the lens (31).

12. The cigarette packaging system of any one of claims 1 to 10, wherein, Also included is a cable socket interface (6) provided on the outside of the housing (1) at the second end in the first direction (X), or on the outside of the second side wall of the housing (1) in the second direction (Y), the first direction (X) being perpendicular to the second direction (Y).

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