Cigarette small box sealing degree detection device

Abstract

The utility model provides a device for detecting the sealing degree of a small cigarette box. The device comprises a base (1), and an industrial personal computer (2), a negative pressure suction unit (3), a sealed cabin (4), a movable cover plate unit (5), a data acquisition unit and a switching valve (7) which are respectively mounted based on the base (1). The data acquisition unit comprises two schemes, one scheme is that the data acquisition unit is a differential pressure sensor (6), and the differential pressure sensor (6) is used for detecting the pressure change in the sealed cabin (4); and secondly, the data acquisition unit is a camera (10), and the camera (10) is used for acquiring a deformation image of the small cigarette box (8) to be detected. The device for detecting the sealing degree of the small cigarette box is specially used for detecting the sealing performance of the small cigarette box, is efficient, accurate and reliable equipment for detecting the sealing performance of the small cigarette box for cigarette production enterprises, and is beneficial to improving the cigarette quality control level and guaranteeing the benefits of consumers.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco industry detection, in particular to a cigarette box sealing detection device. Background Art

[0002] Cigarettes are important consumer goods, and their quality stability and safety have always been a focus of attention. As the primary packaging form for cigarettes, cigarette packs require a critical seal testing task. This is because cigarettes require a certain period of storage during the sales process, and the sales environment cannot be guaranteed. Humid environments can easily cause tobacco mold, while dry environments can easily cause cigarettes to break. Long periods of unsaleable cigarettes can also lead to the loss of flavor, affecting product quality.

[0003] In the laboratory, when conducting various sealing tests, standard-sized small boxes are usually used instead of cigarette packaging boxes for testing. Currently, in the laboratory, there is a lack of special equipment for sealing tests on small cigarette boxes, making the experiments difficult to continue.

[0004] Furthermore, laboratory testing for cigarette pack leaks primarily relies on traditional methods like air inflation or water immersion. While these methods can provide a certain degree of confidence in the leak-tightness of cigarette packs, they suffer from limitations such as complex operation, inaccurate test results, and the inability to conduct real-time online monitoring. Furthermore, existing testing equipment is largely based on outdated technical principles, making it difficult to implement automated or intelligent testing. This not only reduces testing efficiency but also increases errors introduced by human operators, compromising the accuracy and reliability of test results.

[0005] With the continued expansion of the cigarette market and rising consumer demand for cigarette quality, the need for leak detection in cigarette packets is becoming increasingly urgent. Especially amidst intensified competition among cigarette brands, ensuring the leak-tightness of cigarette packets, preventing mold and odor, and preserving the freshness and taste of cigarettes has become a key concern for cigarette manufacturers. Furthermore, technological advancements are driving the widespread adoption of automated and intelligent testing equipment. Therefore, developing a leak detection device specifically designed for cigarette packets that is simple to operate and provides accurate results is crucial for improving cigarette quality control and protecting consumer interests.

[0006] In order to solve the above problems, the present utility model is proposed. Utility Model Content

[0007] The purpose of the utility model is to address the deficiencies of the prior art and thus provide a cigarette box sealing degree detection device specifically used for detecting the sealing performance of cigarette boxes.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] The utility model provides a cigarette box sealing detection device, which includes a base 1 and an industrial computer 2, a negative pressure suction unit 3, a sealing cabin 4, a movable cover unit 5, a data acquisition unit and a switching valve 7 respectively installed on the base 1;

[0010] The top of the sealed cabin 4 is open, and a cavity for storing the cigarette pack 8 to be tested is provided in the sealed cabin 4;

[0011] The negative pressure suction unit 3 is connected to the interior of the sealed cabin through the switching valve 7, and is used to vacuum the sealed cabin;

[0012] The movable cover unit includes a cover 51, and the sealed cabin 4 is located directly below the cover 51. The cover 51 is used to open and close the top opening of the sealed cabin 4;

[0013] The data acquisition unit is used to collect data of the cigarette pack 8 to be tested in the sealed cabin 4 and transmit the data to the industrial computer 2;

[0014] The industrial computer 2 is respectively connected to the negative pressure suction unit 3, the movable cover unit 5, the switching valve 7 and the data acquisition unit. The industrial computer 2 is used to control the negative pressure suction unit 3, the movable cover unit 5, the switching valve 7 and the data acquisition unit, and determine the sealing degree of the cigarette box 8 to be tested based on the data transmitted by the data acquisition unit.

[0015] Preferably, in the first solution, the data acquisition unit is a pressure difference sensor 6 , a detection end of the pressure difference sensor 6 is connected to the inside of the sealed cabin 4 , and is used to detect pressure changes in the sealed cabin 4 .

[0016] Preferably, a second air path interface for connecting the pressure difference sensor 6 is provided on the side wall of the sealed cabin 4 .

[0017] Preferably, in the second set of solutions, the data acquisition unit is a camera 10, and the cover 51 of the movable cover unit 5 and / or the sealed cabin 4 are made of transparent material; the camera 10 is installed in an area outside the sealed cabin 4, and the camera 10 is used to obtain a deformation image of the cigarette box 8 to be tested through the cover 51 and / or the sealed cabin 4.

[0018] Preferably, the base 1 is a box structure, and the industrial computer 2 is integrated into the base.

[0019] Preferably, a first air path interface for connecting to the negative pressure suction unit 3 is provided on the side wall of the sealed cabin 4 .

[0020] Preferably, the negative pressure suction unit 3 is a suction piston or a vacuum pump.

[0021] Preferably, the negative pressure in the sealed cabin 4 is maintained at -6.0 kPa to -2.0 kPa.

[0022] Preferably, a sealing ring 9 adapted to the cover plate 51 in the movable cover plate unit 5 is provided around the top opening of the sealed cabin 4 .

[0023] Preferably, the movable cover unit further includes a lifting drive mechanism 52 and a mounting seat 53 . The lifting drive mechanism 52 is mounted on the base 1 through the mounting seat 53 . The lifting drive mechanism 52 drives the cover 51 to perform lifting motion.

[0024] Preferably, the lifting drive mechanism 52 is a linear lifting mechanism selected from a guide rail cylinder, a movable slide or an electric telescopic rod.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention has two schemes. In the first scheme, the data acquisition unit is a pressure differential sensor 6. The detection end of the pressure differential sensor 6 is connected to the interior of the sealed chamber 4 and is used to detect pressure changes within the sealed chamber 4. Specifically, the cigarette pack 8 to be tested is placed in the sealed chamber, which is sealed using a movable cover unit. The sealed chamber is evacuated using a negative pressure suction unit, and the vacuum line is then cut off. A pressure differential gauge is used to continuously read the pressure differential changes within the sealed chamber to determine whether the cigarette pack is leaking.

[0027] In the second solution, the data acquisition unit is a camera 10, and the cover 51 of the movable cover unit 5 and / or the sealed chamber 4 are made of a transparent material. The camera 10 is used to obtain a deformation image of the cigarette pack 8 to be tested through the cover 51 and / or the sealed chamber 4. Specifically, the cigarette pack to be tested is placed in the sealed chamber, which is sealed using the movable cover unit. The sealed chamber is evacuated using the negative pressure suction unit, and the vacuum air path is then cut off to maintain a negative pressure environment. The camera is used to photograph the cigarette pack inside through the transparent cover. The cigarette pack's deformation ratio is then determined to determine its sealing degree.

[0028] The utility model discloses a cigarette box sealing detection device which is specially used for detecting the sealing performance of cigarette boxes, and provides cigarette manufacturers with an efficient, accurate and reliable cigarette box sealing detection device, which helps to improve the cigarette quality control level and protect the interests of consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is one of the structural diagrams of the cigarette box sealing detection device in Example 1 of the present utility model.

[0030] Figure 2 This is the second structural diagram of the cigarette box sealing detection device in Example 1 of the present utility model.

[0031] Figure 3 This is one of the structural schematic diagrams of the cigarette box sealing detection device in Example 2 of the present utility model.

[0032] Figure 4 This is the second structural diagram of the cigarette box sealing detection device in Example 2 of the present utility model.

[0033] The names of the figure marks in the figure description are: 1. base; 2. industrial computer; 3. negative pressure suction unit; 4. sealing cabin; 5. movable cover unit; 6. differential pressure sensor; 7. switching valve; 8. small box of cigarettes to be tested; 9. sealing ring; 10. camera; 51. cover; 52. lifting drive mechanism; 53. mounting base. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the embodiments.

[0035] Those skilled in the art will understand that the following examples are intended only to illustrate the present invention and should not be construed as limiting the scope of the present invention. Where specific techniques or conditions are not specified in the examples, the techniques or conditions described in literature in the art or in accordance with the product specifications were followed. Materials or equipment used, where the manufacturer is not specified, are commercially available conventional products.

[0036] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we say that an element is "connected" to another element, it can be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used here may include wireless connection.

[0037] In the description of this utility model, unless otherwise specified, "plurality" means two or more. Terms such as "inner," "upper," and "lower" indicating positions or states are based on the positions or states shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They do not indicate or imply that the devices or components referred to must have a specific position, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0039] Those skilled in the art will understand that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with those in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as such herein.

[0040] Example

[0041] like Figure 1 and Figure 2 As shown, a cigarette box sealing detection device includes a base 1 and an industrial computer 2, a negative pressure suction unit 3, a sealing cabin 4, a movable cover unit 5, a pressure difference sensor 6 and a switching valve 7 respectively installed on the base 1.

[0042] The top of the sealed cabin 4 is open, and a cavity for storing the cigarette box 8 to be tested is provided in the sealed cabin 4. The volume of the cavity needs to be slightly larger than the cigarette box to be tested so as to provide a certain proportion of space that can be vacuumed. The side walls of the sealed cabin 4 are respectively provided with a first air path interface for connecting to the negative pressure suction unit 3 and a second air path interface for connecting to the pressure difference sensor 6.

[0043] The negative pressure suction unit 3 is connected to the interior of the sealed cabin 4 through a switching valve 7 and is used to evacuate the sealed cabin 4. In this embodiment, the negative pressure suction unit 3 uses a manual or electric suction piston. In other embodiments, a vacuum pump with slightly higher precision can also be used to evacuate the sealed cabin 4 to a set negative pressure value. The negative pressure in the sealed cabin 4 is maintained at -6.0 kPa to -2.0 kPa.

[0044] The movable cover unit 5 is used to open and close the top opening of the sealed cabin 4. In this embodiment, the movable cover unit 5 includes a cover 51, a lifting drive mechanism 52 and a mounting seat 53. The lifting drive mechanism 52 is installed on the base 1 through the mounting seat 53. The lifting drive mechanism 52 drives the cover 51 to perform lifting and lowering movements. The sealed cabin 4 is located directly below the cover 51. A sealing ring 9 is provided around the top opening of the sealed cabin 4 to adapt to the cover 51 in the movable cover unit.

[0045] In this embodiment, the lifting drive mechanism 52 uses a guide cylinder. In other embodiments, a linear lifting mechanism such as an electric slide or an electric-controlled telescopic rod can also be used.

[0046] The detection end of the differential pressure sensor 6 is connected to the interior of the sealed cabin 4 and is used to detect pressure changes in the sealed cabin 4 .

[0047] The base 1 is a box structure, and the industrial computer 2 is integrated in the base 1. The industrial computer 2 is respectively connected to the negative pressure suction unit 3, the movable cover unit 5, the switching valve 7 and the pressure difference sensor 6, and is used to control the working status of each functional component and read the value of the pressure difference sensor 6.

[0048] Working principle description:

[0049] The operator places the cigarette pack to be tested into the sealed cabin 4, starts the lifting drive mechanism 52, presses the cover 51 down to seal the sealed cabin 4, connects the negative pressure suction unit 3 to the sealed cabin 4, quickly sucks the negative pressure in the sealed cabin 4 to the set value, and then stops the suction action through the switching valve 7. The pressure difference sensor observes the pressure difference change in the sealed cabin 4 to determine the sealing degree of the cigarette pack.

[0050] Example 2

[0051] like Figure 3 and Figure 4 As shown, a cigarette box sealing detection device includes a base 1 and an industrial computer 2, a negative pressure suction unit 3, a sealed cabin 4, a movable cover unit 5, a camera 10 and a switching valve 7 respectively installed based on the base 1.

[0052] The top of the sealed cabin 4 is open, and a cavity for storing the cigarette box 8 to be tested is provided in the sealed cabin 4. The volume of the cavity needs to be slightly larger than the cigarette box 8 to be tested so as to provide a certain proportion of space that can be vacuumed. A first air path interface for connecting to the negative pressure suction unit 3 is provided on the side wall of the sealed cabin 4.

[0053] The negative pressure suction unit 3 is connected to the interior of the sealed cabin 4 through a switching valve 7 and is used to evacuate the sealed cabin 4. In this embodiment, the negative pressure suction unit 3 uses a manual or electric suction piston. In other embodiments, a vacuum pump with slightly higher precision can also be used to evacuate the sealed cabin 4 to a set negative pressure value. The negative pressure in the sealed cabin 4 is maintained at -6.0 kPa to -2.0 kPa.

[0054] The movable cover unit 5 is used to open and close the top opening of the sealed cabin 4. In this embodiment, the movable cover unit 5 includes a cover 51, a lifting drive mechanism 52 and a mounting seat 53. The lifting drive mechanism 52 is installed on the base 1 through the mounting seat 53. The lifting drive mechanism 52 drives the cover 51 to perform lifting and lowering movements. The sealed cabin 4 is located directly below the cover 51. A sealing ring 9 is provided around the top opening of the sealed cabin 4 to adapt to the cover 51 in the movable cover unit. In this embodiment, the cover 51 and / or the sealed cabin 4 are made of transparent material so that the camera 10 can obtain internal images.

[0055] In this embodiment, the lifting drive mechanism 52 uses a guide cylinder. In other embodiments, a linear lifting mechanism such as an electric slide or an electric-controlled telescopic rod can also be used.

[0056] The camera 10 is installed in an area outside the sealed cabin, and its field of view can penetrate the cover plate 51 or the sealed cabin 4, so as to obtain the deformation image of the cigarette pack to be tested.

[0057] The base 1 is a box structure, the industrial computer 2 is integrated in the base 1, and the industrial computer 2 is respectively connected to the negative pressure suction unit 3, the movable cover unit 5, the switching valve 7 and the camera 10.

[0058] Working principle description:

[0059] The operator places the cigarette box to be tested into the sealed cabin 4, starts the lifting drive mechanism 52, presses the cover 51 down to seal the sealed cabin 4, connects the negative pressure suction unit 3 to the sealed cabin 4, quickly sucks the negative pressure in the sealed cabin 4 to the set value, then stops the suction action through the switching valve 7, and uses the camera 10 to capture the deformation ratio of the cigarette box to be tested 8 in the sealed cabin 4 to determine the sealing degree of the cigarette box.

[0060] In this embodiment, the negative pressure in the sealed cabin 4 is maintained at -3.5 kPa ± 0.02 kPa, and online testing of a certain brand of regular cigarette samples is performed during an 8-hour continuous production shift. Sample data is recorded at 30-minute intervals. The deformation rates of samples S1-S16 are shown in Table 1.

[0061] Table 1 Deformation rate of samples S1-S16

[0062]

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A cigarette box sealing detection device, characterized in that: It comprises a base (1) and an industrial computer (2), a negative pressure suction unit (3), a sealed cabin (4), a movable cover unit (5), a data acquisition unit and a switching valve (7) respectively installed on the base (1); The top of the sealed cabin (4) is open, and a cavity for storing the cigarette box (8) to be tested is provided in the sealed cabin (4); The negative pressure suction unit (3) is connected to the interior of the sealed cabin via the switching valve (7) and is used to vacuum the interior of the sealed cabin; The movable cover unit comprises a cover (51), the sealed cabin (4) is located directly below the cover (51), and the cover (51) is used to open and close the top opening of the sealed cabin (4); The data acquisition unit is used to collect data from the cigarette pack (8) to be tested in the sealed cabin (4) and transmit the data to the industrial computer (2); The industrial control computer (2) is respectively connected to the negative pressure suction unit (3), the movable cover unit (5), the switching valve (7) and the data acquisition unit. The industrial control computer (2) is used to control the negative pressure suction unit (3), the movable cover unit (5), the switching valve (7) and the data acquisition unit, and to determine the sealing degree of the cigarette box (8) to be tested based on the data transmitted by the data acquisition unit.

2. The cigarette box sealing detection device according to claim 1, characterized in that: The data acquisition unit is a pressure differential sensor (6), the detection end of the pressure differential sensor (6) being connected to the interior of the sealed cabin (4) and being used to detect pressure changes in the sealed cabin (4).

3. The cigarette box sealing detection device according to claim 2, characterized in that: A second air path interface for connecting to the pressure difference sensor (6) is provided on the side wall of the sealed cabin (4).

4. The cigarette box sealing detection device according to claim 1, characterized in that: The data acquisition unit is a camera (10); the cover plate (51) of the movable cover plate unit (5) and / or the sealed cabin (4) are made of a transparent material; the camera (10) is installed in an area outside the sealed cabin (4), and the camera (10) is used to obtain a deformation image of the cigarette box (8) to be tested through the cover plate (51) and / or the sealed cabin (4).

5. The cigarette box sealing detection device according to claim 1, characterized in that: The base (1) is a box structure, and the industrial computer (2) is integrated into the base.

6. The cigarette box sealing detection device according to claim 1, characterized in that: A first air path interface for connecting to the negative pressure suction unit (3) is provided on the side wall of the sealed cabin (4); The negative pressure suction unit (3) is a suction piston or a vacuum pump.

7. The cigarette box sealing detection device according to claim 1, characterized in that: The negative pressure in the sealed cabin (4) is maintained at -6.0 kPa to -2.0 kPa.

8. The cigarette box sealing detection device according to claim 1, characterized in that: A sealing ring (9) adapted to the cover plate (51) in the movable cover plate unit (5) is provided around the top opening of the sealed cabin (4).

9. The cigarette box sealing detection device according to claim 1, characterized in that: The movable cover plate unit further comprises a lifting drive mechanism (52) and a mounting seat (53); the lifting drive mechanism (52) is mounted on the base (1) via the mounting seat (53); and the lifting drive mechanism (52) drives the cover plate (51) to perform lifting motion.

10. The cigarette box sealing detection device according to claim 9, characterized in that: The lifting drive mechanism (52) is a linear lifting mechanism selected from a guide rail cylinder, a movable slide or an electric control telescopic rod.

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