Cigarette packaging material appearance detection device

Abstract

The utility model relates to the technical field of cigarette manufacturing, in particular to a cigarette packaging material appearance detection device which comprises a camera and a flattening mechanism, the camera is used for detecting the appearance of a cigarette packaging material, and the flattening mechanism applies extrusion force to two ends of a cigarette packet to flatten the cigarette packet into a flat cigarette packet; the focus position of the camera and the horizontally-arranged cigarette packet are located on the same horizontal plane. According to the utility model, the cigarette packet is flattened, and images of multiple surfaces are acquired at one time, so that the omnibearing detection of the cigarette packet is realized, the missing detection of defects is avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette manufacturing, in particular to a cigarette packaging material appearance detection device. Background Art

[0002] The appearance of cigarette packs plays an important role in characterizing the quality of cigarette products. In order to ensure the quality of the appearance of cigarette packaging materials, the design, processing, and testing of cigarette packaging materials must strictly follow relevant regulations and process flows to avoid products that do not meet the needs of current consumers from entering the market and causing negative impacts on cigarette brands. Among them, the testing stage is a key step to ensure that the appearance quality of cigarette packaging materials meets the standards.

[0003] At present, there are many devices on the market that can automatically detect the appearance of cigarette packaging materials. These devices often use high-resolution cameras and machine vision systems of light source controllers to take real-time photos of cigarette packages, and then analyze the collected digital images through image processing software to eliminate unqualified cigarette packages and prevent defective products from entering the market.

[0004] The utility model patent with authorization announcement number CN207366425U discloses an image acquisition device for cigarette package appearance detection, including a shell, a base and an LED light source are installed in the shell, a camera bracket is installed on the base, an industrial camera is installed on the camera bracket, the LED light source is located in front of the industrial camera, and the LED light source is arranged opposite to the lens of the industrial camera, a first socket and a second socket are installed at the rear of the shell, the first socket is connected to the LED light source through an LED light source cable, and the second socket is connected to the industrial camera through an industrial camera communication cable; the front end of the shell is a light-transmitting port, a fixing plate is arranged above the light-transmitting port, and a light-shielding baffle assembly is installed on the fixing plate.

[0005] However, such devices still have their limitations. The above devices can only capture images of a single surface of the cigarette package and cannot fully check whether there are defects on other sides of the cigarette package. This may cause some defects hidden on the non-detection surface to be missed, affecting the judgment of the overall quality of the cigarette package. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a device for detecting the appearance of cigarette packaging materials. By flattening the cigarette packs and collecting images of multiple surfaces at one time, all-round detection of the cigarette packs is achieved, defects are avoided from being missed, and detection accuracy is improved.

[0007] The utility model solves the problem by providing a device for detecting the appearance of cigarette packaging materials, comprising a camera and a flattening mechanism for detecting the appearance of cigarette packaging materials, wherein the flattening mechanism applies a squeezing force to both ends of the cigarette pack to flatten the cigarette pack into a flat cigarette pack; the focal position of the camera is located in the same horizontal plane as the flat cigarette pack.

[0008] Furthermore, the cigarette packaging material appearance detection device provided by the utility model may also have the following characteristics: it also includes a light source part, and the light source part is arranged around the camera.

[0009] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following characteristics: the flattening mechanism includes a accommodating portion for accommodating the cigarette package, and a flattening portion arranged opposite to the accommodating portion; the accommodating portion applies an upward pressure on the cigarette package, and the flattening portion applies a downward pressure on the cigarette package, and the upper pressure and the downward pressure work together to form an extrusion force.

[0010] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following feature: the flattening mechanism further includes a lifting part for driving the accommodating part to rise and fall.

[0011] Furthermore, the cigarette packaging material appearance detection device provided by the utility model may also have the following characteristics: it also includes a sensor, and the sensor is arranged on the horizontal plane where the focus position of the camera is located; when the accommodating part rises until it blocks the light emitted by the sensor, the lifting part stops driving the accommodating part to rise.

[0012] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following feature: a limiting groove for positioning the cigarette package is provided on the accommodating portion.

[0013] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following feature: the flattening part can move in the vertical direction.

[0014] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following feature: it also includes a mounting mechanism for mounting the flattening part.

[0015] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following characteristics: the installation mechanism includes a vertically arranged column and a connecting part connected to the flattening part; the column is provided with a plurality of slots for locating the height position of the connecting part, and the connecting part is provided with a clamping piece for being clamped in the slot.

[0016] Furthermore, the cigarette packaging material appearance inspection device provided by the utility model may also have the following feature: the connecting portion and the flattening portion are detachably connected.

[0017] The beneficial effects of the utility model are:

[0018] 1. In the present application, by equipping a flattening mechanism, the cigarette pack is flattened so that the camera can simultaneously capture images of multiple surfaces of the cigarette pack in one shot, thereby achieving all-round detection of the cigarette pack, avoiding missed defects, and improving detection accuracy.

[0019] 2. In this application, the light source part arranged around the camera can provide uniform lighting conditions for the cigarette package from all angles, ensuring that the cigarette package image captured by the camera is bright and clear, and the detailed features of each part can be fully displayed, thereby further improving the detection accuracy.

[0020] 3. In the present application, the cigarette pack is clamped up and down by the accommodating part and the flattening part. This double-sided pressure can apply extrusion force to the cigarette pack evenly and stably, avoiding extrusion damage to the cigarette pack caused by single-point or local excessive force, and keeping the cigarette pack intact.

[0021] 4. In the present application, a lifting part is provided to drive the accommodating part to automatically adjust to a corresponding height, so that the accommodating part and the flattening part work together to apply a squeezing force to the cigarette pack, thereby automating the flattening operation and improving the detection efficiency.

[0022] 5. In the present application, by providing a flattening part that can move in the vertical direction, the downward pressure height can be adjusted according to actual needs to ensure that appropriate downward pressure is applied to cigarette packs of different specifications, thereby achieving uniform and effective flattening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the lifting part of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the flattening part and the installation mechanism of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the column of the utility model.

[0028] In the figure:

[0029] 1. Camera; 2. Light source; 3. Fixing mechanism; 31. Fixing plate; 32. Fixing column; 4. Accommodating portion; 41. Limiting groove; 5. Flattening portion; 6. Lifting portion; 61. Lifter; 611. Hinge four-bar mechanism; 612. Moving block; 62. Base; 63. Motor; 7. Sensor; 8. Mounting mechanism; 81. Column; 82. Connecting portion; 83. Slot; 84. Linear bearing; 85. Connecting piece; 86. Slide; 9. Focal length reference portion. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The utility model provides a device for detecting the appearance of cigarette packaging materials, the specific structure of which is as follows:

[0032] like Figure 1 As shown, the cigarette packaging material appearance inspection device includes a camera 1 for inspecting the appearance of cigarette packaging materials and a flattening mechanism. The flattening mechanism applies a squeezing force to both ends of the cigarette pack to flatten the cigarette pack into a flat cigarette pack. To ensure that the image obtained by the camera 1 is clear and accurate, the focus position of the camera 1 is located at the same horizontal plane as the flat cigarette pack. When in use, the flattening mechanism flattens the cigarette pack into a flat cigarette pack, so that the camera 1 can simultaneously capture images of multiple surfaces of the cigarette pack in one shot, thereby achieving all-round inspection of the cigarette pack, avoiding missed defects, and improving inspection accuracy.

[0033] In some embodiments, the cigarette packaging material appearance inspection device further includes a light source unit 2, which is arranged around the camera 1 to provide uniform lighting conditions for the cigarette package from all angles, ensuring that the cigarette package image captured by the camera 1 is bright and clear, further improving the detection accuracy. In a specific embodiment, Figure 1 As shown, the light source unit 2 and the camera 1 are both installed through a fixing mechanism 3, which includes a fixing plate 31 on which the light source unit 2 and the camera 1 are installed, and four fixing columns 32 arranged on the four corners of the fixing plate 31. The fixing columns 32 are aluminum alloy profiles, which have both system strength support and lightweight requirements, and the surface is treated to black, which can avoid the problem of surface reflection affecting the image acquisition quality of the camera 1.

[0034] In some embodiments, the flattening mechanism includes a receiving portion 4 for receiving the cigarette package, and a flattening portion 5 arranged opposite to the receiving portion 4; the receiving portion 4 applies an upward pressure to the cigarette package, and the flattening portion 5 applies a downward pressure to the cigarette package, and the upward pressure and the downward pressure work together to form an extrusion force. This double-sided pressure can evenly and stably apply an extrusion force to the cigarette package, avoiding extrusion damage to the cigarette package caused by a single point or local excessive force, and keeping the cigarette package undamaged during detection.

[0035] In some embodiments, the camera 1 is disposed above the flattening portion 5. In order to prevent the flattening portion 5 from affecting the image acquisition effect of the camera 1 during detection, the flattening portion 5 is preferably a light-transmitting glass plate.

[0036] In some embodiments, the flattening mechanism further includes a lifting part 6 for driving the accommodating part 4 to rise and fall, and the lifting part 6 is used to automatically drive the accommodating part 4 to rise and fall, so that it cooperates with the flattening part 5 to apply a squeezing force to the cigarette pack, thereby automating the flattening operation and improving the detection efficiency. Figure 1 and Figure 2 As shown, the lifting part 6 includes a lift 61, a pedestal 62 disposed above the lift 61, and a motor 63 for driving the lift 61 to move up and down. The accommodating part 4 is disposed above the pedestal 62. The lift 61 includes two pairs of parallel hinged four-bar mechanisms 611, and the two pairs of hinged four-bar mechanisms 611 are respectively disposed at the front and rear ends of the pedestal 62 (with Figure 2 The lift 61 also includes a screw rod with a moving block 612 installed. The lower end of the hinged four-bar mechanism 611 is connected to the moving block 612, and the upper end is connected to the base 62. When in use, the motor 63 drives the screw rod to rotate, driving the moving block 612 to move in the left and right directions (in Figure 2 The lifting device 61 is moved in the direction shown in the figure as an example, thereby realizing the lifting and lowering of the pedestal 62 and the accommodating portion 4. By controlling the direction in which the motor 63 rotates, the lifting and lowering of the lifting device 61 can be controlled.

[0037] In some embodiments, the cigarette packaging material appearance inspection device further includes a sensor 7, which is disposed at the horizontal plane where the focus position of the camera 1 is located; when the accommodating portion 4 rises until it blocks the light emitted by the sensor 7, the cigarette pack is within the optimal focus range, and the lifting portion 6 stops driving the accommodating portion 4 to rise, thereby realizing automatic adjustment of the accommodating portion 4. The provision of the sensor 7 can ensure that the camera 1 has clear imaging while effectively preventing damage to the equipment caused by excessive rise of the accommodating portion 4.

[0038] In some embodiments, in order to maintain the consistency of the placement positions of samples of different specifications, a limiting groove 41 for positioning the cigarette pack is provided on the accommodating portion 4.

[0039] In some embodiments, the flattening part 5 can move in the vertical direction. When in use, according to actual needs, the pressing height of the flattening part 5 can be adjusted to ensure that appropriate downward pressure can be applied to cigarette packs of different specifications, thereby achieving uniform and effective flattening.

[0040] As a further improvement of the above embodiment, Figure 3 and Figure 4 As shown, the cigarette packaging material appearance inspection device also includes a mounting mechanism 8 for mounting the flattening portion 5. The mounting mechanism 8 includes a vertically arranged column 81 and a connecting portion 82 connected to the flattening portion 5; the column 81 is provided with a plurality of slots 83 for locating the height position of the connecting portion 82, and the connecting portion 82 is provided with a clamping piece for clamping in the slot 83. By adjusting the connection between the clamping piece and different slots 83, the axial positioning of the connecting portion 82 relative to the column 81 is achieved, thereby adjusting the height of the flattening portion 5.

[0041] In a specific embodiment, Figure 1 and Figure 3 As shown, in order to ensure the stable installation of the flattening part 5, there are two connecting parts 82, which are respectively arranged on the left and right sides of the flattening part 5 (with Figure 3 Taking the direction shown in FIG. 1 as an example), there are four upright posts 81, two of which are respectively arranged at the front and rear ends of the connecting portion 82 (with Figure 3 The direction shown is taken as an example). To facilitate the axial positioning of the connection part 82 relative to the column 81, the connection part 82 includes a linear bearing 84 with a clamping part inside, and the clamping part is preferably a spring clip. The column 81 is provided with a plurality of slots 83 from top to bottom, and the slots 83 are preferably spring clip slots. The connection part 82 is connected to the column 81 by the clamping of the spring clip and the spring clip slot. Considering that the position of the cigarette package flattened into a flat cigarette package will change with the height of the flattening part 5, in order to ensure that the focal position of the camera 1 is located in the same horizontal plane as the flat cigarette package, the cigarette packaging material appearance inspection device also includes a focal length reference part 9 for establishing the focal position of the camera 1. Before the camera 1 collects the image, its lens automatically focuses according to the position of the focal length reference part 9; the focal length reference part 9 is connected to the connection part 82. When the connection part 82 drives the height of the flattening part 5 to change, the height of the focal length reference part 9 changes accordingly.

[0042] In some embodiments, in order to facilitate the replacement of the flattening portion 5, the connecting portion 82 is detachably connected to the flattening portion 5. As a further improvement of this embodiment, Figure 1 and Figure 3 As shown, the connecting portion 82 includes a connecting piece 85 with a slide groove 86 therein, and the slide groove 86 is slidably connected to the flattening portion 5. By sliding in or out of the flattening portion 5 from the slide groove 86, the flattening portion 5 can be conveniently and quickly disassembled. In a specific embodiment, in order to ensure a stable connection between the connecting portion 82 and the flattening portion 5, the front and rear ends of the connecting portion 82 (with Figure 3Two connecting members 85 are respectively provided (taking the direction shown as an example).

[0043] In some specific embodiments, the working process of the cigarette packaging material appearance detection device is as follows:

[0044] The cigarette pack to be inspected is placed in the limiting groove 41 of the accommodating part 4, and the lifting part 6 drives the accommodating part 4 to rise. When the accommodating part 4 rises to the focal position of the camera 1, the accommodating part 4 will block the light emitted by the sensor 7, and the sensor 7 sends a signal to the system. After receiving the signal, the system stops the lifting part 6 and the accommodating part 4 no longer rises. At the same time, the flattening part 5 applies downward pressure to the cigarette pack, and works together with the upward pressure applied to the cigarette pack by the accommodating part 4 to form an extrusion force, and the cigarette pack is flattened into a flat cigarette pack. After that, the camera 1 can collect images of the flat cigarette pack in all directions. According to the collected images, the system can realize intelligent detection.

[0045] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present utility model.

[0046] In the description of the invention, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0047] In the description of the invention, it is also necessary to explain that the terms "center", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the invention. In the description of the invention, unless otherwise specified, "several" means two or more.

[0048] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A cigarette packaging material appearance detection device, characterized in that: It comprises a camera (1) for detecting the appearance of cigarette packaging materials and a flattening mechanism, wherein the flattening mechanism applies a squeezing force to both ends of a cigarette pack to flatten the cigarette pack into a flat cigarette pack; the focal position of the camera (1) is located on the same horizontal plane as the flat cigarette pack.

2. The cigarette packaging material appearance detection device according to claim 1, characterized in that: It also comprises a light source unit (2), wherein the light source unit (2) is arranged around the camera (1).

3. The cigarette packaging material appearance detection device according to claim 1, characterized in that: The flattening mechanism comprises a receiving portion (4) for receiving the cigarette pack, and a flattening portion (5) arranged opposite to the receiving portion (4); the receiving portion (4) applies an upward pressure to the cigarette pack, and the flattening portion (5) applies a downward pressure to the cigarette pack, and the upward pressure and the downward pressure act together to form the squeezing force.

4. The cigarette packaging material appearance detection device according to claim 3, characterized in that: The flattening mechanism further comprises a lifting portion (6) for driving the accommodating portion (4) to rise and fall.

5. The cigarette packaging material appearance inspection device according to claim 4, characterized in that: It also comprises a sensor (7), the sensor (7) being arranged on a horizontal plane where the focal position of the camera (1) is located; when the accommodating portion (4) rises until it blocks the light emitted by the sensor (7), the lifting portion (6) stops driving the accommodating portion (4) to rise.

6. The cigarette packaging material appearance inspection device according to claim 3, characterized in that: The accommodating portion (4) is provided with a limiting groove (41) for positioning the cigarette pack.

7. The cigarette packaging material appearance inspection device according to claim 3, characterized in that: The flattening portion (5) is movable in a vertical direction.

8. The cigarette packaging material appearance inspection device according to claim 7, characterized in that: It also includes a mounting mechanism (8) for mounting the flattening portion (5).

9. The cigarette packaging material appearance inspection device according to claim 8, characterized in that: The mounting mechanism (8) comprises a vertically arranged column (81) and a connecting portion (82) connected to the flattening portion (5); the column (81) is provided with a plurality of slots (83) for locating the height position of the connecting portion (82); and the connecting portion (82) is provided with a clamping piece for clamping in the slots (83).

10. The cigarette packaging material appearance inspection device according to claim 9, characterized in that: The connecting portion (82) is detachably connected to the flattening portion (5).

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