Material appearance detection device, material packaging machine and material appearance detection method

Abstract

The present invention relates to a material appearance detection device, a material packaging machine and a material appearance detection method. The material appearance packaging machine includes a material appearance detection device, which includes an appearance detection component and a sorting component. The appearance detection component has a first signal output end and a second signal output end. The first signal output end is used to output a signal indicating that the front appearance of the material has defects, and the second signal output end is used to output a signal indicating that the side appearance of the material has defects; the sorting component is used to receive the signal output by the first signal output end and / or the second signal output end and can sort materials with unqualified appearance quality. The material appearance detection device can accurately and completely capture and detect the front and side of the cigarette package, and sort the cigarette packages with unqualified front and side appearance quality, thereby preventing cigarette packages with quality defects in appearance from entering the market, protecting the interests of consumers, and saving the manufacturing cost of the material packaging machine at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection, and in particular to a material appearance inspection device, a material packaging machine and a material appearance inspection method. Background Art

[0002] In the tobacco industry, with the upgrading of consumption, consumers have higher and higher requirements for cigarette products. A pack of cigarettes with exquisite appearance will undoubtedly leave a very good impression on consumers. Naturally, the appearance of the cigarette pack should also fully meet the psychological requirements of consumers in terms of aesthetics and quality. However, in the process of generating cigarette packs, there will inevitably be appearance defects, so the appearance of the cigarette packs is usually inspected by visual inspection. Specifically, when the cigarette pack is transmitted to a specified phase, the image of the current step cigarette pack is acquired by triggering the camera, and then the image is transmitted to the image processing controller. Then, the brightness value, color value and other characteristics of the outer surface of each cigarette pack are obtained to determine whether the appearance quality of the cigarette pack meets the standard.

[0003] Usually, cigarette companies only pay more attention to the appearance quality of the front of the cigarette pack. In order to detect whether there are defects in the appearance of the front of the cigarette pack, the camera needs to capture the image of the front of the cigarette pack clearly and brightly. Therefore, the installation position of the camera needs to be set higher, which will result in the camera being unable to capture the image of the complete side of the cigarette pack clearly and brightly. However, the side of the cigarette pack often causes quality defects such as corner bending or even bursting due to insufficient glue or collision with the equipment during transportation. If the cigarette pack with side appearance defects is not detected and eventually flows into the market, it will affect the consumer experience and damage the brand image and reputation. Therefore, in recent years, the appearance quality of the side of the cigarette pack has also attracted more and more attention from cigarette manufacturers. However, in order to make the camera clearly and brightly capture the front of the cigarette pack, the camera cannot take into account the side of the cigarette pack. If a separate camera is set on the side of the cigarette pack, the manufacturing cost of the cigarette equipment will increase. Summary of the invention

[0004] Based on this, it is necessary to provide a material appearance inspection device that can simultaneously capture the front and side images of the cigarette pack, a material packaging machine including the material appearance inspection device, and a material appearance inspection method to address the problem that the camera in the existing appearance inspection device cannot simultaneously capture the front and side images of the cigarette pack, thereby resulting in cigarette packs with defective side quality not being detected and entering the market.

[0005] According to one aspect of the present application, there is provided a material appearance detection device, comprising:

[0006] An appearance detection component, used to detect the appearance quality of a material, the appearance detection component having a first signal output end and a second signal output end, the first signal output end being used to output a signal indicating that the front appearance of the material has a defect, and the second signal output end being used to output a signal indicating that the side appearance of the material has a defect;

[0007] A sorting component is communicatively connected to the first signal output end and the second signal output end, and is used to receive signals output by the first signal output end and / or the second signal output end and can sort materials with unqualified appearance quality according to the signals.

[0008] In one embodiment, the appearance detection component includes:

[0009] A camera, used to collect an image of the appearance of the material;

[0010] An image processing controller is communicatively connected to the camera, the first signal output terminal and the second signal output terminal are arranged on the image processing controller, and the image processing controller is used to process the appearance image collected by the camera.

[0011] In one embodiment, the sorting component comprises:

[0012] A logic controller, communicatively connected to the first signal output terminal and the second signal output terminal and used for issuing a sorting instruction;

[0013] The sorting valve is communicatively connected to the logic controller, and the sorting valve can perform a sorting action according to the sorting instruction issued by the logic controller.

[0014] In one embodiment, the logic controller is configured to, upon receiving the signal outputted from the first signal output terminal indicating that the front appearance of the material has defects, send the sorting instruction to the sorting valve to control the sorting valve to sort the material with defects in the front appearance;

[0015] The logic controller is also configured to, upon receiving a signal outputted from the second signal output terminal indicating that the side appearance of the material has defects, issue the sorting instruction to the sorting valve and perform an additional step count to control the sorting valve to sort the material with defects in the side appearance.

[0016] According to another aspect of the present application, a material packaging machine is provided, comprising:

[0017] A conveying device, used to convey materials along a conveying direction so that the materials are conveyed from an upstream adjacent process step to a current process step;

[0018] The material appearance detection device as described above further comprises a camera, and the camera is configured to simultaneously capture a front image of the material located at the current step and a side image of the material located at the adjacent step.

[0019] According to another aspect of the present application, a material appearance detection method is provided. The detection method is implemented based on the material appearance detection device as described above, and the detection method comprises the following steps:

[0020] Check the appearance quality of the materials in the current process step and the materials in the adjacent process steps;

[0021] Sorting out materials with unqualified appearance quality, or releasing materials with qualified appearance quality;

[0022] Wherein, the adjacent process step is located upstream or downstream of the current process step.

[0023] In one embodiment, the step of detecting the appearance quality of the material at the current process step and the material at the adjacent process step specifically includes the following steps:

[0024] Acquire images of materials located at the current process step and at the adjacent process step;

[0025] The image is processed to determine the appearance quality of the material.

[0026] In one embodiment, the step of acquiring images of the materials at the current process step and the materials at the adjacent process step specifically includes the following steps:

[0027] Adjusting the height and angle of the camera so that the shooting area of ​​the camera can cover the front of the material at the current step and the side of the material at the adjacent step;

[0028] The images are collected to obtain a front image of the material at the current step and a side image of the material at the adjacent step at one time.

[0029] In one embodiment, in the step of processing the image to determine the appearance quality of the material, when the first signal output port outputs a signal, the front appearance quality of the material at the current step is unqualified; and / or

[0030] When the second signal output port outputs a signal, the side appearance quality of the material located in the adjacent process step is unqualified.

[0031] In one of the embodiments, in the step of sorting materials with unqualified appearance quality or releasing materials with qualified appearance quality, when the front appearance quality of the material at the current step is unqualified, a sorting instruction is issued by a logic controller to control a sorting valve to sort the material at the current step; and / or

[0032] When the side appearance quality of the material located in the adjacent process step is unqualified, a sorting instruction is issued through the logic controller and an additional process step count is performed to control the sorting valve to sort the material located in the adjacent process step.

[0033] The above-mentioned material packaging machine is provided with a material appearance detection device, an appearance detection component and a sorting component are provided in the material appearance detection device, and the height and angle of the camera of the material appearance detection device are adjusted so that the shooting area of ​​the camera can cover the front of the cigarette pack located in the current step in the transmission device and the side of the cigarette pack located in the adjacent step, so that the camera can simultaneously obtain the front image of the cigarette pack located in the current step and the side image of the cigarette pack located in the adjacent step at one time; and a first signal output end and a second signal output end are provided in the appearance detection component. The first signal output end is used to output a signal that the front appearance of the cigarette pack has defects, and the second signal output end is used to output a signal that the side appearance of the cigarette pack has defects. When the front appearance quality of the cigarette pack located in the current step is unqualified, the first signal output end can output a signal, and the sorting component sorts the cigarette pack located in the current step; when the side appearance quality of the cigarette pack located in the adjacent step is unqualified, the second signal output end can output a signal, and the sorting component sorts the cigarette pack located in the adjacent step. As a result, the material appearance detection device can use only one camera to accurately and completely capture images of the front and sides of the cigarette pack and accurately detect and identify them, and sort out cigarette packs with unqualified front and side appearance quality, preventing cigarette packs with quality defects in appearance from entering the market, improving product quality, protecting the interests of consumers, and at the same time saving the manufacturing cost of the material packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a working schematic diagram of a material appearance detection device in a material packaging machine according to a conventional embodiment;

[0036] Figure 2It is a stereoscopic schematic diagram of a material appearance detection device in an existing embodiment when a camera collects images of a cigarette pack;

[0037] Figure 3 It is a front view of a material appearance detection device in an existing embodiment when a camera is collecting images of a cigarette pack;

[0038] Figure 4 A schematic diagram of the working of a material appearance detection device in a material packaging machine according to an embodiment of the present invention;

[0039] Figure 5 This is a three-dimensional schematic diagram of the camera in the material appearance detection device provided by the present invention collecting images of a cigarette pack;

[0040] Figure 6 This is a front view of a cigarette pack when the camera in the material appearance detection device provided by the present invention collects images;

[0041] Figure 7 This is a flow chart of the steps of the material appearance detection method provided by the present invention.

[0042] Description of reference numerals:

[0043] 10. Material packaging machine; 100. Transmission device; 101. Push block; 110. First CH conveyor belt; 120. Second CH conveyor belt; 130. CH forming wheel; 300. Material appearance detection device; 310. Appearance detection component; 311. Camera; 312. Image processing controller; 3121. First signal output terminal; 3122. Second signal output terminal; 320. Sorting component; 321. Logic controller; 322. Sorting valve; 20. Cigarette package. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “liquid level”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher liquid level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower liquid level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "liquid horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0050] An embodiment of the present invention provides a material appearance detection device, a material packaging machine, and a material appearance detection method. The material packaging machine includes a material appearance detection device, which is used to wrap and heat-seal the material of a small box with transparent paper, and fill the small box material into a strip box in a subsequent process to form a final product. The material appearance detection device is used to detect appearance defects on the front and side of the small box material, and sort out the small box materials with unqualified appearance quality. The material appearance detection method is implemented based on the material appearance detection device, thereby achieving the purpose of preventing small box materials with unqualified appearance quality from entering the market.

[0051] The following takes the inspection of the appearance quality of small boxes of cigarettes in cigarette products and the transportation and packaging of small boxes of cigarettes as an example to illustrate the partial structure of the material packaging machine and the structure of the material appearance inspection device in this application. This embodiment is only used as an example and does not limit the technical scope of this application. It can be understood that in other embodiments, the material appearance inspection device and the material packaging machine are not limited to the packaging and appearance quality inspection of small boxes of cigarettes, but can also be used for packaging and appearance quality inspection of other types of box-shaped materials, which is not limited here.

[0052] like Figure 1 The figure shows a partial structure of a material packaging machine 10, which includes a transmission device 100 and a material appearance detection device 300. The transmission device 100 is used to continuously transmit materials along a transmission direction. The direction indicated by the arrow in the figure is the material transmission direction. In this embodiment, the materials refer to cigarette packs; the appearance detection device is arranged beside the transmission device 100, and is used to collect the appearance quality of the materials transmitted on the transmission device 100, and sort out the cigarette packs 20 with unqualified appearance quality from the transmission device 100.

[0053] Figure 1The material appearance detection device 300 in the material packaging machine 10 shown in the figure is an existing embodiment. In this embodiment, the material appearance detection device 300 includes an appearance detection component 310 and a sorting component 320. The appearance detection component 310 includes a camera 311 and an image processing controller 312. The image processing controller 312 has a signal input end and a signal output end, wherein the signal input end is communicatively connected to the camera 311, and the signal output end is communicatively connected to the sorting component 320. The camera 311 is used to collect the appearance image of the cigarette package 20, and input the collected appearance image into the image processing controller 312. The image processing controller 312 is used to process the appearance image collected by the camera 311. When the processed image is abnormal, that is, when the appearance quality of the cigarette package 20 is unqualified, a signal is sent to the sorting component 320.

[0054] The sorting component 320 includes a logic controller 321 and a sorting valve 322. One end of the logic controller 321 is communicatively connected to the signal output end of the image processing controller 312, and the other end of the logic controller 321 is communicatively connected to the sorting valve 322. When the appearance quality of the cigarette pack 20 is unqualified, the logic controller 321 can receive the signal sent by the image processing controller 312, thereby sending a sorting instruction to control the sorting valve 322 to perform a sorting action, thereby sorting out the cigarette pack 20 with unqualified appearance quality. Optionally, the logic controller 321 can be a PLC or a single-chip microcomputer.

[0055] However, as described in the background art, in order to detect whether there are defects in the appearance of the front of the cigarette pack 20, the camera 311 needs to clearly and brightly capture the image of the front of the cigarette pack 20, so the installation position of the camera 311 needs to be set higher, such as Figure 2 and Figure 3 As shown, the angle between one boundary of the camera 311 shooting angle and the plane where the front of the cigarette pack 20 is located is A, which will result in the camera 311 being unable to clearly and brightly capture the image of the complete side of the cigarette pack 20. However, the side of the cigarette pack 20 may also have quality defects such as corner folding or even bursting due to insufficient glue or collision with equipment during transportation. If the cigarette pack 20 with side appearance defects is not detected and eventually flows into the market, it will affect the consumer experience and damage the brand image and reputation.

[0056] In order to solve the above-mentioned problem, the inventor of the present application has thought of adjusting the setting angle and height of the camera 311 so that the camera 311 can simultaneously capture the image of the front side of the cigarette pack 20 located in the current inspection step (hereinafter referred to as the step) and the image of the side side of the cigarette pack 20 located in the adjacent step. In this way, only one camera 311 can be used to accurately and completely capture the image of the front and side of the cigarette pack 20 and accurately detect and identify them, and sort out the cigarette packs 20 with unqualified appearance quality on the front and side.

[0057] Based on the above considerations, the inventors of the present application have conducted in-depth research and improved the existing material appearance detection device 300. Based on the improved material appearance detection device 300, the inventors of the present application have also designed a material appearance detection method, by adjusting the setting angle and height of the camera 311, the camera 311 can simultaneously obtain the front image of the cigarette pack 20 located in the current step and the side image of the cigarette pack 20 located in the adjacent step, and the image processing controller 312 can send two signals according to the obtained front image of the cigarette pack 20 located in the current step or the side image of the cigarette pack 20 located in the adjacent step, so as to sort out the cigarette packs 20 with defects on the front or the cigarette packs 20 with defects on the side.

[0058] Specifically, combined Figure 4 , Figure 5 and Figure 6 As shown, it is an improved embodiment of the material appearance detection device 300. Compared with the previous embodiment, the setting position of the camera 311 is changed. The setting height of the camera 311 is slightly lowered, and the setting angle of the camera 311 is slightly adjusted, so that the angle between one boundary of the shooting angle of the camera 311 and the horizontal plane where the front of the cigarette pack 20 is located is B, where B﹤A. In this way, the shooting area of ​​the camera 311 can cover the front of the cigarette pack 20 located in the current step and the side of the cigarette pack 20 located in the adjacent step, so that the camera 311 can capture the image of the front of the cigarette pack 20 located in the current step and the side of the cigarette pack 20 located in the adjacent step at one time. In this embodiment, the adjacent step is the next step located upstream of the current step, and the direction from the cigarette pack 20 located in the next step to the cigarette pack 20 located in the current detection step is the transmission direction of the cigarette pack 20.

[0059] Furthermore, the image processing controller 312 is provided with two signal output terminals, namely, a first signal output terminal 3121 and a second signal output terminal 3122. After the image processing controller 312 obtains the image captured by the camera 311, it analyzes it through its built-in detection tool. When the appearance quality of the front and side of the cigarette package 20 is unqualified, the first signal output terminal 3121 can output a signal that the front appearance of the cigarette package 20 has defects, and the second signal output terminal 3122 can output a signal that the side appearance of the cigarette package 20 has defects. The first signal output terminal 3121 and the second signal output terminal 3122 The logic controller 321 is respectively communicatively connected to the sorting component 320. The logic controller 321 is configured to, upon receiving a signal output from the first signal output terminal 3121 indicating that the front appearance of the cigarette pack 20 has defects, issue a sorting instruction to the sorting valve to control the sorting valve 322 to sort the cigarette pack 20 with defects in the front appearance in the current step. The logic controller 321 is also configured to, upon receiving a signal output from the second signal output terminal 3122 indicating that the side appearance of the cigarette pack 20 has defects, issue a sorting instruction to the sorting valve and add 1 to the step extra count to control the sorting valve 322 to sort the cigarette pack 20 with defects in the side appearance in the next step.

[0060] It is worth noting that the shooting area of ​​the camera 311 may also cover the front image of the cigarette pack 20 in the current process step and the side image of the cigarette pack 20 in the previous process step, that is, the previous process step is an adjacent process step located downstream, so that the camera 311 can also simultaneously obtain the image of the front and side of the cigarette pack 20. However, at this time, when the second signal output terminal 3122 of the image processing controller 312 sends a signal, the logic controller 321 sends a sorting instruction and performs a process step additional count minus 1, so as to control the sorting valve 322 to sort the cigarette pack 20 with defects in the side appearance in the previous process step.

[0061] In this way, through the above-mentioned adjustment of the shooting height and angle of the camera 311 and the improvement of the output end of the image processing controller 312, one signal output end is changed to two signal output ends, so that the material appearance detection device 300 can use only one camera 311 to accurately and completely capture the image and accurately detect and identify the front and side of the cigarette pack 20, and sort out the cigarette packs 20 with unqualified appearance quality on the front and side, thereby preventing cigarette packs 20 with quality defects in appearance from entering the market and saving the manufacturing cost of the material packaging machine 10 at the same time.

[0062] In some embodiments, the transmission device 100 includes a first CH conveyor belt 110, a second CH conveyor belt 120 disposed downstream of the first CH conveyor belt 110 along the transmission direction, and a CH forming wheel 130 disposed between the first CH conveyor belt 110 and the second CH conveyor belt 120. The camera 311 is disposed at the entrance of the CH forming wheel 130 (i.e., the exit of the first CH conveyor belt 110); the opposite ends of the CH forming wheel 130 along its own radial direction are respectively connected to the exit of the first CH conveyor belt 110 and the entrance of the second CH conveyor belt 120, so that the central axis of the CH forming wheel 130 (as shown by the dotted line in the figure) is perpendicular to the transmission direction of the first CH conveyor belt 110.

[0063] Thus, when a plurality of cigarette packs 20 are sequentially conveyed from the first CH conveyor belt 110 to the CH shaping wheel 130, since the CH shaping wheel 130 can be controlled to rotate around its own central axis, the cigarette packs 20 on the CH shaping wheel 130 are turned over 180° under the rotation of the CH shaping wheel 130 and then enter the second CH conveyor belt 120 from the entrance of the second CH conveyor belt 120 for further transmission. As the small-box cigarette packs 20 can be turned over in the CH shaping wheel 130, the transparent paper can be automatically wrapped around the outer surface of the cigarette packs 20, and the transparent paper can be heat-sealed by an electric soldering iron to fit tightly on the outer surface of the small-box cigarette packs 20.

[0064] Preferably, multiple groups of push block groups arranged at intervals may be provided on the surface of the first CH conveyor belt 110 and the second CH conveyor belt 120, each push block group includes two push blocks 101 arranged at intervals, and the two push blocks 101 in each push block group form a clamping gap, and multiple push block groups 101 form multiple clamping gaps arranged at intervals along the transmission direction on the conveyor belt. When each cigarette pack 20 is transported on the first CH conveyor belt 110 and the second CH conveyor belt 120, it can be limited and clamped and fixed in the clamping gap formed by the two push blocks 101, so that the cigarette pack 20 can be prevented from shifting during the transportation process, so that when the small box cigarette pack 20 is transported through the detection device, there will be no erroneous detection results due to positional displacement.

[0065] Combination Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the material appearance detection device 300 has the following detection steps:

[0066] The first step S01 is to detect the appearance quality of the material in the current process step and the material in the adjacent process step upstream or downstream of the current process step.

[0067] First, the height and angle of the camera 311 are adjusted so that the camera 311 can capture the complete front side of the cigarette pack 20 in the current inspection step and the complete side side of the cigarette pack 20 in the adjacent step at one time.

[0068] Then, when the cigarette pack 20 runs to a certain phase, the camera 311 is triggered to take pictures and collect images of the front side of the cigarette pack 20 in the current process step and the side side of the cigarette pack 20 in the next process step. The image obtained by the camera 311 is processed by the image processing controller 312 to judge the appearance quality of the front and side of the cigarette pack 20.

[0069] The second step S02 is to sort out materials with unqualified appearance quality or release materials with qualified appearance quality. Specifically, if the front inspection of the cigarette pack 20 is normal and the side inspection of the cigarette pack 20 is normal, the sorting component 320 does not sort the cigarette pack 20, and the cigarette pack 20 continues to be transported by the transport device 100 to the equipment of the subsequent process.

[0070] If there is an abnormality in the front detection of the cigarette pack 20, the first signal output terminal 3121 of the image processing controller 312 sends a signal that the appearance quality of the cigarette pack 20 is unqualified to the logic controller 321, and then the logic controller 321 sends a sorting signal to the sorting control valve to control the sorting valve 322 to sort out the cigarette pack 20 located in the current process step.

[0071] If there is an abnormality in the side detection of the cigarette pack 20, the second signal output terminal 3122 of the image processing controller 312 sends a signal indicating that the appearance quality of the cigarette pack 20 is unqualified to the logic controller 321, and the logic controller 321 then sends a sorting signal to the sorting control valve, and counts the step by an additional 1 to control the sorting valve 322 to sort out the cigarette pack 20 at the next step.

[0072] If both the front detection and the side detection of the cigarette pack 20 are abnormal, the first signal output terminal 3121 and the second signal output terminal 3122 of the image processing controller 312 both send a signal indicating that the appearance quality of the cigarette pack 20 is unqualified to the logic controller 321, and the logic controller 321 then sends a sorting signal to the sorting control valve, and counts the step by an additional 1 to control the sorting valve 322 to sort out both the cigarette pack 20 at the current step and the cigarette pack 20 at the next step.

[0073] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A material appearance detection device, characterized in that: include: An appearance detection component, used to detect the appearance quality of a material, the appearance detection component having a first signal output end and a second signal output end, the first signal output end being used to output a signal indicating that the front appearance of the material has a defect, and the second signal output end being used to output a signal indicating that the side appearance of the material has a defect; A camera, wherein the camera is configured to simultaneously capture a front image of a material at a current process step and a side image of a material at an adjacent process step; A sorting component is communicatively connected to the first signal output end and the second signal output end, the sorting component is used to receive the signal output by the first signal output end and / or the second signal output end and can sort the materials with unqualified appearance quality according to the signal; the sorting component includes a logic controller and a sorting valve, the logic controller is communicatively connected to the first signal output end and the second signal output end and is used to issue a sorting instruction, and the sorting valve is communicatively connected to the logic controller; The logic controller is configured to, upon receiving the signal outputted from the first signal output terminal indicating that the front appearance of the material has defects, send the sorting instruction to the sorting valve to control the sorting valve to sort the material located at the current process step and having defects in the front appearance; The logic controller is also configured to, upon receiving a signal output from the second signal output terminal indicating that the side appearance of the material has defects, issue the sorting instruction to the sorting valve and perform an additional step count to control the sorting valve to sort the material located in the adjacent step and having defects in the side appearance.

2. The material appearance detection device according to claim 1, characterized in that: The appearance detection component comprises: An image processing controller is communicatively connected to the camera, the first signal output terminal and the second signal output terminal are arranged on the image processing controller, and the image processing controller is used to process the appearance image collected by the camera.

3. A material packaging machine, characterized in that: include: A transmission device and a material appearance detection device as described in claim 1 or 2, wherein the transmission device is used to transmit materials along a transmission direction so that the materials are transmitted from an upstream adjacent step to a current step.

4. The material packaging machine according to claim 3, characterized in that: The transmission device includes a first CH conveyor belt, a second CH conveyor belt arranged downstream of the first CH conveyor belt along the transmission direction, and a CH forming wheel arranged between the first CH conveyor belt and the second CH conveyor belt, and the camera is arranged at the entrance of the CH forming wheel.

5. The material packaging machine according to claim 4, characterized in that: The opposite ends of the CH forming wheel along its radial direction are respectively connected to the outlet of the first CH conveyor belt and the inlet of the second CH conveyor belt.

6. A material appearance detection method, characterized in that: The detection method is implemented based on the material appearance detection device according to claim 1 or 2, and the detection method comprises the following steps: Check the appearance quality of the material in the current process step and the material in the adjacent process step; Sorting out materials with unqualified appearance quality, or releasing materials with qualified appearance quality; Wherein, the adjacent process step is located upstream or downstream of the current process step.

7. The material appearance detection method according to claim 6, characterized in that: The step of detecting the appearance quality of the material in the current process step and the material in the adjacent process step specifically includes the following steps: Acquire images of materials located at the current process step and at the adjacent process step; The image is processed to determine the appearance quality of the material.

8. The material appearance detection method according to claim 7, characterized in that: The step of acquiring images of the materials at the current step and at the adjacent step specifically includes the following steps: Adjusting the height and angle of the camera so that the shooting area of ​​the camera can cover the front of the material at the current step and the side of the material at the adjacent step; The images are collected to obtain a front image of the material at the current step and a side image of the material at the adjacent step at one time.

9. The material appearance detection method according to claim 8, characterized in that: In the step of processing the image to determine the appearance quality of the material, when the first signal output terminal outputs a signal, the front appearance quality of the material at the current step is unqualified; and / or When the second signal output terminal outputs a signal, the side appearance quality of the material located in the adjacent process step is unqualified.

10. The material appearance detection method according to claim 9, characterized in that: In the step of sorting the materials with unqualified appearance quality or releasing the materials with qualified appearance quality, when the front appearance quality of the material at the current step is unqualified, a sorting instruction is issued by the logic controller to control the sorting valve to sort the material at the current step; and / or When the side appearance quality of the material located in the adjacent process step is unqualified, a sorting instruction is issued through the logic controller and an additional process step count is performed to control the sorting valve to sort the material located in the adjacent process step.

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