Ink explosion detection equipment and ink explosion detection method for cigarette case packaging paper

Abstract

The invention discloses ink explosion detection equipment and an ink explosion detection method for cigarette case packaging paper. The ink explosion detection equipment comprises a conveying platform, a pressing mechanism, a roller transmission mechanism and a detection mechanism. The downward pressing mechanism comprises a pressing block arranged above the conveying face. The pressing block is configured to be movably arranged in the height direction so as to move downwards in the conveying process of the to-be-detected packaging paper to instantly press the folding end to deepen the folding mark. The roller conveying mechanism is arranged on the downstream of the downward pressing mechanism in the first direction. The rolling wheel conveying mechanism comprises rolling wheels which are arranged above the conveying face and are arranged in a rotatable mode. And a conveying gap is formed between the roller and the conveying surface. And the folding end of the to-be-detected packaging paper is instantaneously flapped by the downward pressing mechanism and then is continuously conveyed forwards through the conveying gap. The detection mechanism comprises an image acquisition device, and the image acquisition device is configured to acquire a crease image of the folding end and analyze the ink explosion condition according to the crease image. According to the ink explosion detection equipment provided by the embodiment of the invention, the detection accuracy of folding ink explosion is improved.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to an ink burst detection device and an ink burst detection method for cigarette box packaging paper. Background Art

[0002] After the printed paper is folded, it is easy for the ink to burst at the crease. For cigarette box products, when the cover tongue of the cigarette box is folded on the cigarette machine, the impact force at this place is the greatest compared to the impact force at other creases, and it is also the most likely to burst. And because this place will directly face the consumer when the cigarette box is opened, its folding ink burst defect can easily cause consumers to have a low experience and satisfaction. Therefore, it is necessary to detect the folding ink burst defect at this place to determine whether the printed paper is qualified.

[0003] At present, the way to detect ink burst on printed paper is to manually fold the printed paper and observe the ink burst on the indentation line. However, since everyone's folding strength and technique are different, the test results are not obtained under standard test conditions, and it is impossible to accurately judge whether the printed paper is qualified.

[0004] It should be noted that the statements in this background technology section only provide background technology related to the present application and do not necessarily constitute prior art. Summary of the invention

[0005] The present application provides an ink burst detection device and an ink burst detection method for cigarette box packaging paper, so as to improve the accuracy of ink burst detection on folded cigarette box packaging paper.

[0006] The first aspect of the present application provides an ink burst detection device for cigarette box packaging paper, comprising:

[0007] A conveying platform has a conveying surface for carrying the packaging paper to be detected, and the conveying platform is configured to be movably arranged along a first direction to drive the packaging paper to be detected to be conveyed forward, and the packaging paper to be detected has a folded end placed on the conveying surface, and the folded end is pre-folded;

[0008] A downward pressing mechanism, comprising a pressing block disposed above the conveying surface, the pressing block being configured to be movably disposed in the height direction so as to move downward during the conveying process of the packaging paper to be inspected to instantaneously press against the folded end to deepen the crease;

[0009] a roller transmission mechanism, arranged downstream of the pressing mechanism in the first direction, the roller transmission mechanism comprising a roller arranged above the conveying surface and rotatably arranged, a conveying gap being formed between the roller and the conveying surface, and the folded end of the packaging paper to be inspected is continuously conveyed forward through the conveying gap after being instantaneously beaten by the pressing mechanism; and

[0010] The detection mechanism includes an image acquisition device, and the image acquisition device is configured to acquire a crease image of the folded end and analyze the ink explosion situation based on the crease image.

[0011] In some embodiments, the pressing mechanism further comprises a first driving cylinder for driving the pressing block to move in the height direction, and the air intake pressure of the first driving cylinder can be adjusted to adjust the pressure applied by the pressing block to the folding end.

[0012] In some embodiments, the pressing mechanism further includes a flow regulating valve, which is used to adjust the air intake flow of the first driving cylinder to adjust the moving speed of the pressing block.

[0013] In some embodiments, the roller transmission mechanism further includes a second driving cylinder, a piston rod of which is connected to the roller to adjust the size of the conveying gap.

[0014] In some embodiments, the second driving cylinder is configured to move according to the thickness of the packaging paper to be detected to adjust the size of the conveying gap.

[0015] In some embodiments, the ink explosion detection device further includes a third driving cylinder, and a piston rod of the third driving cylinder is connected to the conveying platform to drive the conveying platform to move along the first direction.

[0016] In some embodiments, the pressing mechanism also includes a first driving cylinder for driving the pressing block to move in the height direction, the roller transmission mechanism also includes a second driving cylinder, the piston rod of the second driving cylinder is connected to the roller to adjust the size of the conveying gap, and the ink explosion detection device also includes a casing, a compressed gas supply source is arranged in the casing, and the compressed gas supply source is configured to be gas-connected to the first driving cylinder, the second driving cylinder and the third driving cylinder respectively.

[0017] In some embodiments, the conveying platform includes a main platform provided with a conveying surface and an auxiliary platform arranged on one side of the second direction of the main platform, the second direction is perpendicular to the first direction, and the packaging paper to be inspected also includes a remaining part arranged on one side of the folding end, and the auxiliary platform is used to place the remaining part of the packaging paper to be inspected.

[0018] In some embodiments, the auxiliary platform includes a limiting groove, and the edge of the remaining portion of the packaging paper to be detected extends into the limiting groove.

[0019] In some embodiments, the packaging paper to be inspected includes a base paper layer, an ink layer, and a varnish layer arranged in sequence in the thickness direction. The image acquisition device is configured to acquire an enlarged image of the crease image and determine the defect classification based on the enlarged image. The defect classification includes fiber bursting of the base paper layer, ink layer bursting, and varnish layer bursting.

[0020] In some embodiments, the inspection mechanism further includes a controller configured to output an analysis result based on the defect classification obtained by the image acquisition device.

[0021] A second aspect of the present application provides a method for detecting ink burst of cigarette box packaging paper based on the ink burst detection device, comprising the following steps:

[0022] Pre-folding the folded end of the packaging paper to be inspected;

[0023] Placing the pre-folded folded end onto the conveying surface of the conveying platform and controlling the conveying platform to convey forward along a first direction;

[0024] During the process of the conveying platform conveying forward along the first direction, controlling the pressing block of the pressing mechanism to move downward to press toward the folding end;

[0025] After the packaging paper to be inspected passes through the conveying gap between the roller and the conveying surface, the packaging paper to be inspected is taken out and a crease image of the folded end is obtained;

[0026] Analyze the ink burst situation based on the crease image.

[0027] In some embodiments, the ink explosion detection method further includes obtaining the gram weight of the packaging paper to be detected and obtaining the thickness of the packaging paper to be detected according to the gram weight of the packaging paper to be detected, and controlling the roller to move in the height direction to adjust the size of the conveying gap according to the thickness of the packaging paper to be detected.

[0028] In some embodiments, analyzing the ink bursting condition according to the crease image includes: determining defect classification, the defect classification includes varnish layer bursting, fiber layer bursting and ink layer bursting.

[0029] Based on the technical solution provided by the present application, the ink burst detection device includes a conveying platform, a pressing mechanism, a roller transmission mechanism and a detection mechanism. The conveying platform has a conveying surface for carrying the packaging paper to be detected. And the conveying platform is configured to be movably arranged along a first direction to drive the packaging paper to be detected to be conveyed forward. The packaging paper to be detected has a folded end placed on the conveying surface. The pressing mechanism includes a pressing block arranged above the conveying surface. The pressing block is configured to be movably arranged in the height direction to move downward during the conveying process of the packaging paper to be detected to instantly press the folded end to deepen the crease. The roller transmission mechanism is arranged downstream of the pressing mechanism in the first direction. The roller transmission mechanism includes a roller arranged above the conveying surface and rotatably arranged. A conveying gap is formed between the roller and the conveying surface. The folded end of the packaging paper to be detected continues to be conveyed forward through the conveying gap after being instantly beaten by the pressing mechanism. The detection mechanism includes an image acquisition device, which is configured to acquire a crease image of the folded end and analyze the ink burst situation according to the crease image. The ink burst detection device of the embodiment of the present application truly simulates the instantaneous pressure that the paper to be wrapped is subjected to during the actual folding process by setting up a downward pressure mechanism, and can truly simulate the actual folding process of the wrapping paper, so that the folding ink burst situation can be detected more realistically, thereby improving the detection accuracy of folding ink burst.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 It is a schematic diagram of the partial structure of the cover of some cigarette boxes when it is not folded.

[0033] Figure 2 This is a schematic diagram of the main structure of an ink burst detection device according to some embodiments of the present application.

[0034] Figure 3 for Figure 2 The top view structural schematic diagram of the ink burst detection device is shown. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0038] The cigarette box comprises a box body and a cover body, wherein the cover body can be opened and closed to open or close the box body. Figure 1 The cover body includes a top cover wall 300 and a front cover wall 200 which is assembled with the front wall of the box body. The front cover wall 200 and the front wall of the box body are located in the same plane and together form the front surface of the cigarette box.

[0039] The cover body also includes a cover body tongue 100 disposed on the inner side of the front cover wall 200. There is a fold between the cover body tongue 100 and the front cover wall 200 to facilitate consumers to press the cover body tongue back to the inner side of the front cover wall 200 when opening and closing the cover body. That is, when the cigarette box is closed, the cover body tongue 100 is folded and disposed on the inner side of the front cover wall 200.

[0040] Then, when producing the cigarette box, the cover tongue 100 needs to be folded relative to the front cover wall 200 to deepen the fold 120 between the cover tongue 100 and the front cover wall 200, so as to facilitate folding by consumers.

[0041] When producing cigarette box packaging paper, the printed large sheet of cigarette box packaging paper must first be passed through a die-cutting and creasing machine to die-cut the large sheet of cigarette box packaging paper into small sheets of cigarette box packaging paper. In addition, a creasing mechanism will form a creasing line on the small sheet of cigarette box packaging paper, which is the crease when folded in the subsequent folding process.

[0042] It should be noted here that the above description of the cigarette box is only for the convenience of understanding the position of the cigarette box tongue. Figure 1 The shape and structure of the cigarette box shown do not constitute any limitation to the embodiments of the present application.

[0043] The inventor of the present application found in the research process that when the cover tongue 100 is folded to deepen the fold 120, the fold at this location is subject to the instantaneous pressure of the pressing block, so it is more likely to be subjected to the impact force than other folds, and thus it is most likely to cause ink explosion. This location is directly facing the consumer when opened, so the defect of ink explosion at its folding should be paid special attention.

[0044] In order to solve the above problems, this application proposes Figure 2 and Figure 3 The ink burst detection device for cigarette box packaging paper is shown to improve the accuracy of folding ink burst detection.

[0045] refer to Figure 2 and Figure 3, the ink explosion detection device for cigarette box packaging paper provided in some embodiments of the present application includes a conveying platform 2, a pressing mechanism 4, a roller transmission mechanism 5 and a detection mechanism. The conveying platform 2 has a conveying surface for carrying the packaging paper to be detected. And the conveying platform 2 is configured to be movably arranged along the first direction X to drive the packaging paper to be detected to be conveyed forward. The packaging paper to be detected has a folded end placed on the conveying surface. The pressing mechanism 4 includes a pressing block 41 arranged above the conveying surface. The pressing block 41 is configured to be movably arranged in the height direction to move downward during the conveying process of the packaging paper to be detected to instantly press the folded end to deepen the crease. The roller transmission mechanism 5 is arranged downstream of the pressing mechanism 4 in the first direction X. The roller transmission mechanism 5 includes a roller 51 arranged above the conveying surface and rotatably arranged. A conveying gap is formed between the roller 51 and the conveying surface. The folded end of the packaging paper to be detected continues to be conveyed forward through the conveying gap after being instantly beaten by the pressing mechanism 4. The detection mechanism includes an image acquisition device, which is configured to acquire a crease image of the folded end and analyze the ink explosion situation based on the crease image.

[0046] The ink burst detection device of the embodiment of the present application utilizes the pressing mechanism 4 to apply an instantaneous pressing action to the folding end, and utilizes the roller transmission mechanism 5 to apply continuous pressure to the folded paper to be packaged during the transmission process to further deepen the crease, wherein the pressing mechanism 4 is used to apply a certain pressure to the packaging paper to be detected to simulate the folding action of the cigarette packaging box during the rolling process, and the roller transmission mechanism 5 is used to simulate the process of continuous force during the transmission process of the cigarette machine after folding. That is to say, the ink burst detection device of the embodiment of the present application truly simulates the instantaneous pressure exerted on the paper to be packaged during the actual folding process by setting the pressing mechanism 4, and can truly simulate the actual folding process of the packaging paper, so that the folding ink burst situation can be detected more realistically, thereby improving the detection accuracy of folding ink burst.

[0047] The folded end refers to the position where the packaging paper to be tested needs to be folded, and the folded end needs to be pre-folded before being pressed down by the pressing mechanism 4. In this way, the fold is deepened by the instantaneous pressing of the pressing mechanism 4 and the force conveying of the conveying gap. That is to say, the folded end of the packaging paper to be tested has been folded into two layers when the pressing mechanism 4 presses down. In some embodiments, the folded end refers to the end where the cover tongue of the cigarette box is located.

[0048] To more accurately simulate the amount of downward pressure applied to the folded end, refer to Figure 2 In some embodiments, the pressing mechanism 4 further includes a first driving cylinder 42 for driving the pressing block 41 to move in the height direction. The air intake pressure of the first driving cylinder 42 is adjustable to adjust the pressure applied by the pressing block 41 to the folding end.

[0049] For example, the pressure applied by the pressing block 41 to the folding end can be adjusted by setting a pressure regulating valve to adjust the air intake pressure of the first driving cylinder 42 .

[0050] In order to more accurately simulate the descending speed of the pressing block 41 when it is pressed downward toward the folding end, in some embodiments, the pressing mechanism 4 further includes a flow regulating valve. The flow regulating valve is used to adjust the air intake flow of the first driving cylinder 42 to adjust the moving speed of the pressing block 41.

[0051] The flow regulating valve may specifically be an electromagnetic flow valve, and the controller controls the magnitude of the current of the electromagnetic flow valve and thus controls the opening of the flow regulating valve to control the intake flow of the first driving cylinder.

[0052] The ink explosion detection device of the embodiment of the present application controls the up and down movement of the pressing block 41 through the first driving cylinder 42, so that when the folding end is conveyed, the pressing block 41 is controlled to move downward to press the folding end, and then move upward to leave the folding end, thereby forming an instantaneous pressure on the folding end, truly simulating the folding action of the cigarette box folding process.

[0053] The pressing mechanism 4 of the embodiment of the present application adjusts the pressure applied by the pressing block 42 to the folding end by controlling the air intake pressure of the first driving cylinder 42. In this way, the ink explosion situation can be obtained by applying different pressures to the folding ends of multiple packaging papers to be tested, thereby guiding the folding pressure in the actual production process, and avoiding the occurrence of ink explosion caused by excessive folding pressure.

[0054] In some embodiments, the roller transmission mechanism 5 further includes a second driving cylinder 52. The piston rod of the second driving cylinder 51 is connected to the roller 51 to adjust the size of the conveying gap. In the process of the folded end of the packaging paper to be detected passing through the conveying gap, the folded end of the packaging paper to be detected will continue to be subjected to the pressure of the roller 51, so the size of this conveying gap is crucial to the size of the pressure on the folded end. In order to adjust the size of the pressure on the folded end, the embodiment of the present application connects the second driving cylinder 51 to the upper end of the roller 51, so that the size of the conveying gap can be adjusted by controlling the action of the second driving cylinder 51.

[0055] like Figure 2 As shown, the roller transmission mechanism 5 of some embodiments of the present application also includes a mounting frame, and the roller 51 is rotatably connected to the mounting frame, so that during the process of forward conveying of the packaging paper to be inspected, the roller 51 will rotate, thereby reducing the friction between the roller 51 and the packaging paper to be inspected, thereby preventing the printed surface of the packaging paper to be inspected from being worn during the pressurized conveying process.

[0056] In order to detect the folding and ink bursting conditions of packaging papers of different thicknesses, in some embodiments, the second driving cylinder 51 is configured to adjust the size of the conveying gap according to the thickness of the packaging paper to be detected.

[0057] Papers of different weights have different thicknesses, so it is necessary to obtain the thickness of the paper according to the weight of the paper and then adjust the size of the conveying gap according to the thickness of the paper.

[0058] In some embodiments, the ink explosion detection device further comprises a third driving cylinder 3. The piston rod of the third driving cylinder 3 is connected to the conveying platform 2 to drive the conveying platform 2 to move along the first direction X.

[0059] exist Figure 2 and Figure 3 In the specific embodiment shown, the pressing mechanism 4 further includes a first driving cylinder 42 for driving the pressing block 41 to move in the height direction. The roller transmission mechanism 5 further includes a second driving cylinder 52, the piston rod of which is connected to the roller 51 to adjust the size of the conveying gap, and the ink explosion detection device further includes a housing 1, in which a compressed gas supply source is arranged, and the compressed gas supply source is configured to be gas-connected to the first driving cylinder 42, the second driving cylinder 52 and the third driving cylinder 3 respectively.

[0060] In this embodiment, a first driving cylinder 42 is provided to drive the pressing block 41 to move, a second driving cylinder 52 is provided to drive the roller 51 to move, and a third driving cylinder 3 is used to drive the conveying platform to move. In this way, the driving mechanisms of this embodiment are all cylinders, so the same compressed gas supply source can be used to supply gas to the three cylinders, thereby making the structure of the ink explosion detection device more compact and simpler.

[0061] Since the ink burst detection device of the embodiment of the present application is used to fold a folded end of the packaging paper to be detected, especially to fold the tongue of the cover of the cigarette box, the weight of the part other than the folded end is also heavy. In order to maintain the smoothness of the conveying of the packaging paper to be detected, the reference Figure 3 In some embodiments, the conveying platform 2 includes a main platform 21 provided with a conveying surface and an auxiliary platform 22 provided on one side of the second direction Y of the main platform 21. The second direction Y is perpendicular to the first direction X, and the packaging paper to be inspected also includes the remaining part provided on one side of the folded end, and the auxiliary platform 22 is used to place the remaining part of the packaging paper to be inspected.

[0062] When placing the packaging paper to be inspected in this way, the folded end of the packaging paper to be inspected is placed on the main platform 21, and the remaining part of the packaging paper to be inspected is placed on the auxiliary platform 22. The auxiliary platform 22 supports and carries the remaining part of the packaging paper to be inspected and is connected to the main platform 21. In this way, during the forward conveying of the main platform 21, the auxiliary platform 22 also conveys and carries the remaining part. In this way, the entire packaging paper to be inspected is carried on the conveying platform, and then conveyed forward along with the conveying platform, which is beneficial to ensure the conveying stability of the packaging paper to be inspected.

[0063] In some embodiments, the auxiliary platform 22 includes a limiting groove. The edge of the remaining portion of the packaging paper to be inspected extends into the limiting groove. By providing the limiting groove, the relative position of the packaging paper to be inspected relative to the conveying platform remains unchanged, thereby preventing adverse effects caused by the position shifting during the conveying process.

[0064] like Figure 3 As shown, the side of the auxiliary platform 22 is provided with a folded edge, and a limiting groove is formed between the folded edge and the auxiliary platform 22. When placing the packaging paper to be inspected, the edge of the packaging paper to be inspected is inserted into the limiting groove to form a limit for the packaging paper to be inspected.

[0065] In some embodiments, the packaging paper to be inspected includes a base paper layer, an ink layer, and a varnish layer arranged in sequence in the thickness direction. The image acquisition device is configured to acquire an enlarged image of the fold image, and determine the defect classification according to the enlarged image, and the defect classification includes fiber bursting of the base paper layer, ink layer bursting, and varnish layer bursting.

[0066] The ink burst detection device of the embodiment of the present application not only determines whether ink burst occurs at the crease by setting a detection mechanism, but also further analyzes the cause of the ink burst through the magnified image of the crease. Specifically, the defect classification is determined based on the magnified image, and the defect classification includes fiber bursting of the base paper layer, ink layer bursting, and varnish layer bursting, so that the actual production process can be guided according to the specific defect classification. For example, if the fiber layer at the crease bursts, it may be caused by poor paper quality or insufficient fiber strength, so the base paper can be replaced to perform another ink burst detection; on the other hand, if the fiber layer at the crease bursts, it may also be caused by excessive pressure of the indentation mechanism of the die-cutting and indentation machine when pressing to form an indentation, so in addition to replacing the paper, the ink burst detection can be performed again by adjusting a reasonable die-cutting and indentation pressure to more clearly determine the cause of the ink burst. For another example, if the ink layer at the crease bursts, such as cracking, falling off or color change, it can be judged as ink layer burst, which is usually caused by improper ink formulation and mismatched drying speed. Therefore, the ink formulation can be adjusted or the drying speed can be adjusted to perform ink burst detection again. For another example, if the varnish layer at the crease has obvious cracks or falls off, it can be judged as varnish layer burst, which is usually caused by too thick varnish coating and poor drying. Therefore, the thickness and drying of the varnish coating can be appropriately adjusted and ink burst detection can be performed again.

[0067] It can be seen that the ink burst detection device of the embodiment of the present application can provide effective guidance for actual production by analyzing and judging the defect classification based on the enlarged image of the crease, thereby realizing the significance of ink burst detection, thereby avoiding ink burst problems in actual production and improving product quality.

[0068] In some embodiments, the inspection mechanism further includes a controller configured to output an analysis result according to the defect classification obtained by the image acquisition device.

[0069] The analysis results include guidance. For example, if the defect is a bursting of the fiber layer, the analysis results include replacing the base paper; if the defect is a bursting of the ink layer, the analysis results include adjusting the ink formula or adjusting the drying speed; if the defect is a bursting of the varnish layer, the analysis results include reducing the thickness of the varnish layer and improving the drying effect of the varnish layer.

[0070] The ink explosion detection device of the embodiment of the present application can effectively guide the workshop to make production adjustments and material processing by judging the state of the sample after folding based on defect analysis, thereby improving product quality and production efficiency. By continuously monitoring and analyzing the state of the folded product, we can promptly discover potential problems in the production process and take corresponding preventive measures to solve them, thereby ensuring the safety and stability of production to the greatest extent and avoiding serious losses.

[0071] Of course, all of the above defects may be caused by excessive downward pressure. Therefore, when testing ink explosion, you can first obtain the appropriate pressure by testing the ink explosion conditions at different pressures; or directly adjust the downward pressure to the pressure of the actual product for testing. If the pressure of the actual product is too high, you can also adjust the pressure of the actual product according to the test results.

[0072] The present application also provides a method for detecting ink burst of cigarette box packaging paper using an ink burst detection device, comprising the following steps:

[0073] Pre-folding the folded end of the packaging paper to be inspected;

[0074] Placing the pre-folded folded end onto the conveying surface of the conveying platform and controlling the conveying platform 2 to convey forward along the first direction X;

[0075] During the process of the conveying platform 2 being conveyed forward along the first direction X, the pressing block 41 of the pressing mechanism 4 is controlled to move downward to press toward the folding end.

[0076] After the packaging paper to be inspected passes through the conveying gap between the roller 51 and the conveying surface, the packaging paper to be inspected is taken out and a crease image of the folded end is obtained;

[0077] Analyze the ink burst situation based on the crease image.

[0078] The ink burst detection method of the embodiment of the present application utilizes the pressing mechanism 4 to apply an instantaneous pressing action to the folding end, and utilizes the roller transmission mechanism 5 to apply continuous pressure to the folded paper to be packaged during the transmission process to further deepen the crease, wherein the pressing mechanism 4 is used to apply a certain pressure to the packaging paper to be detected to simulate the folding action of the cigarette packaging box during the rolling process, and the roller transmission mechanism 5 is used to simulate the process of continuous force during the transmission process of the cigarette machine after folding. That is to say, the ink burst detection method of the embodiment of the present application truly simulates the instantaneous pressure exerted on the paper to be packaged during the actual folding process by setting the pressing mechanism 4, and can truly simulate the actual folding process of the packaging paper, so that the folding ink burst situation can be detected more realistically, thereby improving the detection accuracy of folding ink burst.

[0079] In some embodiments, the ink explosion detection method further includes obtaining the gram weight of the packaging paper to be detected and obtaining the thickness of the packaging paper to be detected according to the gram weight of the packaging paper to be detected, and controlling the roller 51 to move in the height direction to adjust the size of the conveying gap according to the thickness of the packaging paper to be detected.

[0080] The ink burst detection method of the embodiment of the present application obtains the thickness of the packaging paper to be detected according to the gram weight of the packaging paper to be detected and then adjusts the size of the conveying gap according to the thickness. In this way, the ink burst detection method of the embodiment of the present application can be adaptively adjusted according to different packaging papers to be detected, thereby expanding the scope of application.

[0081] In some embodiments, analyzing the ink bursting condition according to the crease image includes: determining defect classification, the defect classification includes varnish layer bursting, fiber layer bursting and ink layer bursting.

[0082] According to the following Figure 2 and Figure 3 The structure of an ink burst detection device for cigarette box packaging paper according to a specific embodiment of the present application is described in detail.

[0083] like Figure 2 and Figure 3 As shown, the ink explosion detection device for cigarette box packaging paper of this embodiment includes a shell 1, a conveying platform 2, a third driving cylinder 3, a pressing mechanism 4, a roller transmission mechanism 5, a pressure display panel 6, a pressure regulating valve 7, a manual switch 8 and an automatic switch 9.

[0084] The housing 1 is used as the supporting shell of the whole detection equipment, which has the functions of protecting the internal mechanism and facilitating operation. The top wall is provided with an operation panel, an operation panel pressure display panel 6, a pressure regulating valve 7, a manual switch 8 and an automatic switch 9. The housing 1 is made of a strong and durable material and has good sealing and dustproof properties.

[0085] The conveying platform 2 includes a main platform 21 and an auxiliary platform 22 .

[0086] The pressing mechanism 4 comprises a pressing block 41 and a first driving cylinder 42. The pressing mechanism 4 is used to simulate the folding action of the cigarette pack during the wrapping process and to apply a certain pressure to the packaging paper to be inspected.

[0087] The roller transmission mechanism 5 includes a roller 51 and a second driving cylinder 52. The roller transmission mechanism 5 is used to simulate the process of applying a certain pressure to the detected packaging paper and then continuously applying force through the conveying gap. The gap between the roller 51 and the conveying surface of the conveying platform 2 can be adjusted to accommodate packaging papers of different thicknesses.

[0088] The driving mechanisms of the present embodiment are all driving cylinders, which use compressed air as a power source and control the air pressure through a pressure regulating valve.

[0089] After the cigarette packaging paper to be inspected is pre-folded along the indentation, it is fixed on the conveying platform 2, and the pneumatic drive mechanism is started. The pressing mechanism 4 directly applies pressure to fold it, and then it is pressed and conveyed by the roller conveying mechanism 5. Then, an image acquisition device such as a camera is used to obtain the crease image of the cigarette packaging paper to be inspected, and then determine whether the quality of the cigarette packaging paper meets the requirements.

[0090] The ink burst detection device of this embodiment has an automatic mode and a manual mode. If the manual switch 8 is pressed to turn on the manual mode, the pressure and speed applied can be adjusted manually. The ink burst situation during folding can be judged by applying different pressures. If the product has obvious ink burst, it can be directly judged by visual inspection. If the automatic switch 9 is pressed to turn on the automatic mode, the ink burst situation can be judged after the product is completely folded and pressurized under the preset pressure state.

[0091] The specific quality of the product after folding is analyzed by taking photos with a high-power magnifying glass. Based on the defect analysis, it is determined whether the state of the sample after folding is a burst of the varnish layer, the paper fiber layer, or the ink layer. The workshop is effectively guided to adjust production in a timely manner according to the analysis results, and to carry out targeted treatment of materials such as paper and ink. Production early warning is carried out according to the state of the product after folding to prevent the hidden danger of ink explosion to the greatest extent, and to pre-solve hidden problems in the production process to avoid serious losses.

[0092] The ink burst detection device of the present embodiment realizes the adjustment of the folding pressure by pneumatic means, which is simple to operate and has high adjustment accuracy, thereby improving the applicable scope of the detection. Moreover, by adopting a downward pressure mechanism to simulate the way in which cigarette boxes are folded during the cigarette rolling process in a cigarette factory, the quality of the folding force presented by the printed materials of the cigarette packaging boxes during the rolling process is more realistically reflected. The printed materials are folded by a balanced rolling pressure to ensure the accuracy of the detection and avoid the errors caused by manual folding. Moreover, the ink burst detection device of the present embodiment has a simple structure, is easy to operate, and is easy to maintain, and is suitable for the detection of printed materials of cigarette packaging boxes of various specifications and types. By continuously monitoring and analyzing the status of the folded product, potential problems in the production process can be discovered in a timely manner, and corresponding preventive measures can be taken to solve them.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution for protection in the present application.

Claims

1. An ink burst detection device for cigarette box packaging paper, characterized in that: include: A conveying platform (2) having a conveying surface for carrying the packaging paper to be detected, and the conveying platform (2) is configured to be movably arranged along a first direction (X) to drive the packaging paper to be detected to be conveyed forward, the packaging paper to be detected having a folded end placed on the conveying surface, the folded end being pre-folded; A downward pressing mechanism (4), comprising a pressing block (41) arranged above the conveying surface, the pressing block (41) being configured to be movably arranged in a height direction so as to move downward during the conveying process of the packaging paper to be inspected so as to instantaneously press against the folded end to deepen the fold; a roller transmission mechanism (5) arranged downstream of the pressing mechanism (4) in the first direction (X), the roller transmission mechanism (5) comprising a roller (51) arranged above the conveying surface and rotatably disposed, a conveying gap being formed between the roller (51) and the conveying surface, and the folded end of the packaging paper to be inspected is continuously conveyed forward through the conveying gap after being instantaneously tapped by the pressing mechanism (4); and The detection mechanism includes an image acquisition device, and the image acquisition device is configured to acquire the crease image of the folded end and analyze the ink explosion situation according to the crease image.

2. The ink explosion detection device according to claim 1, characterized in that: The pressing mechanism (4) further comprises a first driving cylinder (42) for driving the pressing block (41) to move in a height direction, and the air intake pressure of the first driving cylinder (42) is adjustable to adjust the pressure applied by the pressing block (41) to the folding end.

3. The ink explosion detection device according to claim 2, characterized in that: The pressing mechanism (4) further comprises a flow regulating valve, wherein the flow regulating valve is used to regulate the air intake flow of the first driving cylinder (42) so as to regulate the moving speed of the pressing block (41).

4. The ink explosion detection device according to claim 1, characterized in that: The roller transmission mechanism (5) further comprises a second driving cylinder (52), wherein a piston rod of the second driving cylinder (52) is connected to the roller (51) to adjust the size of the transmission gap.

5. The ink explosion detection device according to claim 4, characterized in that: The second driving cylinder (51) is configured to move according to the thickness of the packaging paper to be detected to adjust the size of the conveying gap.

6. The ink explosion detection device according to claim 1, characterized in that: The ink explosion detection device further comprises a third driving cylinder (3), wherein a piston rod of the third driving cylinder (3) is connected to the conveying platform (2) to drive the conveying platform (2) to move along the first direction (X).

7. The ink explosion detection device according to claim 6, characterized in that: The pressing mechanism (4) further comprises a first driving cylinder (42) for driving the pressing block (41) to move in a height direction. The roller transmission mechanism (5) further comprises a second driving cylinder (52). The piston rod of the second driving cylinder (51) is connected to the roller (51) to adjust the size of the conveying gap. The ink explosion detection device further comprises a housing (1). A compressed gas supply source is arranged in the housing (1). The compressed gas supply source is configured to be gas-connected to the first driving cylinder (42), the second driving cylinder (52) and the third driving cylinder (3) respectively.

8. The ink explosion detection device according to any one of claims 1 to 7, characterized in that: The conveying platform (2) comprises a main platform (21) provided with the conveying surface and an auxiliary platform (22) arranged on one side of a second direction (Y) of the main platform (21), wherein the second direction (Y) is perpendicular to the first direction (X), and the packaging paper to be inspected further comprises a remaining portion arranged on one side of the folding end, and the auxiliary platform (22) is used for placing the remaining portion of the packaging paper to be inspected.

9. The ink explosion detection device according to claim 8, characterized in that: The auxiliary platform (22) comprises a limiting groove, and the edge of the remaining part of the packaging paper to be detected extends into the limiting groove.

10. The ink explosion detection device according to any one of claims 1 to 7, characterized in that: The packaging paper to be inspected includes a base paper layer, an ink layer and a varnish layer arranged in sequence in the thickness direction. The image acquisition device is configured to acquire an enlarged image of the crease image and determine defect classification based on the enlarged image. The defect classification includes fiber bursting of the base paper layer, bursting of the ink layer and bursting of the varnish layer.

11. The ink explosion detection device according to claim 10, characterized in that: The detection mechanism further includes a controller configured to output an analysis result based on the defect classification obtained by the image acquisition device.

12. A method for detecting ink burst of cigarette box packaging paper based on the ink burst detection device according to claim 1, characterized in that: The steps include: Pre-folding the folded end of the packaging paper to be inspected; placing the pre-folded folded end onto the conveying surface of the conveying platform and controlling the conveying platform (2) to convey forward along the first direction (X); During the process of the conveying platform (2) conveying forward along the first direction (X), controlling the pressing block (41) of the pressing mechanism (4) to move downward so as to press toward the folding end; After the packaging paper to be inspected passes through the conveying gap between the roller (51) and the conveying surface, taking out the packaging paper to be inspected and acquiring a crease image of the folded end; The ink explosion situation is analyzed according to the crease image.

13. The ink explosion detection method according to claim 12, characterized in that: The ink explosion detection method further comprises obtaining the grammage of the packaging paper to be detected and obtaining the thickness of the packaging paper to be detected according to the grammage of the packaging paper to be detected, and controlling the roller (51) to move in a height direction according to the thickness of the packaging paper to be detected to adjust the size of the conveying gap.

14. The ink explosion detection method according to claim 12, characterized in that: Analyzing the ink bursting condition according to the crease image includes: determining defect classification, wherein the defect classification includes varnish layer bursting, fiber layer bursting and ink layer bursting.

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