A method and device for detecting anti-counterfeiting printing quality of wine packaging boxes

Abstract

The present invention discloses a method and device for detecting the quality of anti-counterfeiting printing of wine packaging boxes, comprising: a base, a detection flat plate, a heating plate, an ultraviolet light emitter, an industrial camera and an illumination light source; the packaging paper to be detected is clamped by the heating plate and the transparent plate, and the anti-counterfeiting printing mark of the packaging paper to be detected faces the transparent plate; the illumination light source is turned on in the vertical direction of the transparent plate, and ultraviolet light is irradiated to the transparent plate at the edge of the transparent plate, and the ultraviolet light and the transparent plate are located in the same plane; the image of the packaging paper to be detected is photographed in the direction of the transparent plate by the industrial camera, and uploaded to the computer analysis system, and the quality comparison detection of the anti-counterfeiting printing mark is performed. The present invention clamps and heats the packaging paper to be detected by the transparent plate and the heating plate, and adopts the method of direct illumination by the illumination light source, and the ultraviolet light is injected from the side direction of the transparent plate, so that the temperature is effectively controlled, the illumination is stable and there is no interference, and the detection accuracy and detection efficiency are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging printing detection equipment, and more particularly to a method and device for detecting the anti-counterfeiting printing quality of a wine packaging box. Background Art

[0002] Anti-counterfeiting printing is a comprehensive anti-counterfeiting technology, a branch of special printing, which refers to the use of printing to prevent imitation, copying or forgery without permission from the owner. With the development of the printing industry, people pay more and more attention to the printing quality of printing products. The use of anti-counterfeiting printing on wine packaging boxes has become a relatively common technology.

[0003] At present, the inspection is generally carried out manually or by machine vision imaging technology. Due to individual differences and fatigue, manual inspection cannot guarantee the consistency of product characteristics and the stability of product quality. When using existing machine vision imaging technology to automatically inspect printed products, it is not suitable for anti-counterfeiting printing quality inspection with anti-counterfeiting additives such as ultraviolet fluorescence or thermal sensitivity because it cannot control the inspection temperature or light. In order to overcome this problem, there are some devices in the prior art that perform inspections by increasing temperature and light conditions, but some problems are still found in use:

[0004] (1) Generally, a heating box is used for temperature control. The inspected object cannot react to the temperature quickly, resulting in low inspection efficiency. In addition, the unevenness of the inspected object will also reduce the inspection accuracy.

[0005] (2) During the test, normal light sources are usually used for illumination, supplemented by ultraviolet light for reaction. However, the intersection of the two light sources in their arrangement will affect the detection effect.

[0006] Therefore, how to provide a method and device for detecting anti-counterfeiting printing quality of wine packaging boxes that can meet effective and efficient detection under temperature and light conditions is an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0007] In view of this, the present invention provides a method and device for detecting anti-counterfeiting printing quality of a wine packaging box, aiming to solve the above technical problems.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A method for detecting the anti-counterfeiting printing quality of a wine packaging box comprises the following steps:

[0010] S1. The packaging paper to be inspected is clamped by a heating plate and a transparent plate, with the anti-counterfeiting printed mark of the packaging paper to be inspected facing the transparent plate;

[0011] S2, turning on the illumination light source in the vertical direction of the transparent plate, irradiating ultraviolet light to the transparent plate at the edge of the transparent plate, wherein the ultraviolet light and the transparent plate are located in the same plane;

[0012] S3. Using an industrial camera to shoot an image of the inspected packaging paper in the direction of the transparent plate, and uploading the image to a computer analysis system to perform a quality comparison test on the anti-counterfeiting printed mark.

[0013] Through the above technical scheme, the present invention adopts a heating plate clamping method to achieve rapid heating of the inspected packaging paper, that is, to achieve effective control of the temperature of the anti-counterfeiting printed mark. At the same time, a lighting light source is directly irradiated, and ultraviolet light is injected from the side direction of the transparent plate to prevent the problem of detection effect being affected by unreasonable light source arrangement, so that ultraviolet light directly acts on the surface of the inspected packaging paper, avoids interference from the lighting light source, and greatly improves detection accuracy and detection efficiency.

[0014] Preferably, in the above-mentioned method for detecting the quality of anti-counterfeiting printing of a wine packaging box, when the heating plate and the transparent plate clamp the packaging paper to be inspected, the illumination light source and the ultraviolet light are turned on at the same time, so that the clamping action of the heating plate and the transparent plate and the irradiation of the illumination light source and the ultraviolet light are controlled in linkage, which saves energy and improves the intelligent control effect.

[0015] The present invention also provides a device for detecting the quality of anti-counterfeiting printing of a wine packaging box, comprising:

[0016] A base, the base comprising a bottom plate, a top plate, and a supporting column fixed between the bottom plate and the top plate; an industrial camera and a lighting source are installed on the bottom plate;

[0017] A detection plate, wherein the detection position in the middle of the detection plate is a transparent plate, the transparent plate corresponds to the camera head of the industrial camera, the bottom edge of the detection plate is fixed to the top surface of the bottom plate through a plurality of support tubes, and the detection plate is provided with a guide hole located inside the support tube;

[0018] A heating plate, the heating plate is located between the detection plate and the top plate, the bottom surface of the heating plate is fixed with guide posts having the same number as the guide holes, the guide posts pass through the guide holes and are connected to the buffer springs located inside the support tube; a retracting mechanism is connected between the top surface of the heating plate and the top plate, the retracting mechanism can drive the heating plate to rise, and can release the heating plate to make it fall by gravity;

[0019] The ultraviolet light emitter is fixed on the bottom plate and guides the ultraviolet light to the edge of the transparent plate through a plurality of optical fibers.

[0020] Through the above technical scheme, the anti-counterfeiting printing quality detection device provided by the present invention clamps and heats the inspected packaging paper through a transparent plate and a heating plate, and adopts a lighting light source to directly illuminate, and ultraviolet light is injected from the side direction of the transparent plate, so that the temperature is effectively controlled, the lighting is stable and without interference, and the lifting and lowering of the heating plate can be controlled by the retracting mechanism. At the same time, the heating plate is buffered and decelerated by a buffer spring when it descends, which not only prevents the influence of external forces on the inspected packaging paper and the transparent plate, but also improves safety.

[0021] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, the retracting mechanism includes a plurality of electromagnets fixed to the bottom surface of the top plate, and a plurality of iron plates corresponding to the electromagnets fixed to the top surface of the heating plate, each group of corresponding electromagnets and the outer side of the iron plates are sleeved with a corrugated telescopic sleeve, the top end of the corrugated telescopic sleeve is fixed to the top plate, and the bottom end is fixed to the heating plate; an electromagnetic controller for controlling the on and off of the magnetic force of the electromagnet is installed on the top surface of the top plate. The lifting control of the heating plate of the present invention is controlled by the magnetic attraction of the electromagnet and guided by the corrugated telescopic sleeve. When the heating plate needs to be lowered, the magnetism is disconnected and it can fall by gravity. At the same time, the buffering speed is reduced by the buffer spring, so that the overall control is coordinated and stable, simple and easy to operate.

[0022] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, the retracting mechanism further comprises a plurality of guide rods, which are vertically fixed to the top edge of the heating plate and pass upward through the sliding holes on the top plate. By providing the guide rods and the sliding holes, the lifting stability of the heating plate is enhanced.

[0023] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, the retracting mechanism further includes a first one-way valve and a second one-way valve installed at the top of the corrugated expansion sleeve; the first one-way valve controls the one-way inflow of gas from the outside to the inside of the corrugated expansion sleeve, and the second one-way valve controls the one-way outflow of gas from the inside of the corrugated expansion sleeve to the outside. When the electromagnet and the iron plate separate to drive the corrugated expansion sleeve to unfold, external gas enters the inside of the corrugated expansion sleeve through the first one-way valve; when the electromagnet and the iron plate approach to drive the corrugated expansion sleeve to fold, the gas inside the corrugated expansion sleeve flows out to the outside through the second one-way valve, which can effectively achieve air pressure balance.

[0024] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, a plurality of the second one-way valves are connected to a main air pipe, the main air pipe is connected to a plurality of branch hoses, the plurality of branch hoses are connected to a plurality of blowing holes on the heating plate, and the plurality of blowing holes are arranged in a ring shape. The present invention utilizes the extruded exhaust gas when the corrugated expansion sleeve contracts, and discharges it from the blowing holes through the main air pipe and the branch hoses. In this way, when the heating plate rises, the exhaust gas is discharged from the blowing holes at the same time, which can prevent the detected packaging paper from being lifted up due to the attraction force when the heating plate rises, and play a blowing and pressing role, and can also achieve a certain degree of cooling effect.

[0025] Preferably, in the above-mentioned anti-counterfeiting printing quality inspection device for a wine packaging box, a heater is fixed on the top surface of the heating plate. The present invention realizes that the heating plate can overcome the elastic force of the buffer spring to achieve gravity descent through the weight configuration of the heater and the iron plate. At the same time, the elastic force of the buffer spring is also selected to reduce the descent speed of the heating plate but be lower than the pressure thereof.

[0026] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, an infrared sensor is also fixed on the top surface of the bottom plate, and the infrared sensor corresponds to the transparent plate. The present invention can automatically start the electromagnetic controller by sensing whether the detected packaging paper is put in through the infrared sensor, further improving the intelligent control, and because the heating plate has an elastic effect, it has a safety and error prevention basis.

[0027] Preferably, in the above-mentioned wine packaging box anti-counterfeiting printing quality detection device, the top edge of the detection flat plate has a sensing button. The sensing button can sense the contact between the heating plate and the detection platform, and then control the opening of the ultraviolet light emitter and the lighting source, and control the shooting of the industrial camera.

[0028] Preferably, in the above-mentioned anti-counterfeiting printing quality detection device for a wine packaging box, in order to prevent the influence of air pressure, the support tube is designed as a hollow cylindrical structure.

[0029] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a method and device for detecting the quality of anti-counterfeiting printing of a wine packaging box, which has the following beneficial effects:

[0030] 1. The present invention adopts a heating plate clamping method to achieve rapid heating of the inspected packaging paper, that is, to achieve effective control of the temperature of the anti-counterfeiting printed mark. At the same time, a lighting light source is directly irradiated, and ultraviolet light is injected from the side of the transparent plate to prevent the problem of detection effect being affected by unreasonable light source arrangement, so that ultraviolet light directly acts on the surface of the inspected packaging paper, thereby preventing interference from the lighting light source and greatly improving detection accuracy and efficiency.

[0031] 2. The anti-counterfeiting printing quality detection device provided by the present invention clamps and heats the packaging paper to be inspected by a transparent plate and a heating plate, and adopts a lighting light source to directly illuminate, and ultraviolet light is injected from the side direction of the transparent plate, so that the temperature is effectively controlled, the lighting is stable and without interference, and the lifting and lowering of the heating plate can be controlled by the retracting mechanism. At the same time, the heating plate is buffered and decelerated by a buffer spring when it descends, which not only prevents the influence of external forces on the packaging paper to be inspected and the transparent plate, but also improves safety.

[0032] 3. The lifting and lowering control of the heating plate of the present invention is controlled by the magnetic attraction of the electromagnet and guided by the corrugated telescopic sleeve. When the heating plate needs to be lowered, the magnetism is disconnected and it can fall by gravity. At the same time, the speed is reduced by the buffer spring, so that the overall control is coordinated and stable, simple and easy to operate.

[0033] 4. The present invention utilizes the extruded exhaust gas when the corrugated expansion sleeve contracts, and discharges it from the blowing holes through the main air pipe and the branch hose. In this way, when the heating plate rises, the gas is exhausted from the blowing holes at the same time, which can prevent the detected packaging paper from being lifted up due to the attraction when the heating plate rises, thereby playing a blowing and pressing role, and can achieve a certain degree of cooling effect. 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 The accompanying drawing is a structural schematic diagram of the anti-counterfeiting printing quality detection device for a wine packaging box provided by the present invention in a non-working state;

[0036] Figure 2 The accompanying drawing is a structural schematic diagram of the working state of the anti-counterfeiting printing quality detection device for wine packaging boxes provided by the present invention;

[0037] Figure 3 The accompanying drawing is a schematic diagram of the structure of the detection plate provided by the present invention;

[0038] Figure 4 The accompanying drawing is a schematic structural diagram of the heating plate provided by the present invention.

[0039] in:

[0040] 1- base;

[0041] 11-bottom plate; 12-top plate; 13-support column; 14-buffer spring;

[0042] 2-Detection plate;

[0043] 21-transparent plate; 22-support tube; 23-guide hole;

[0044] 3- Heating plate;

[0045] 31-guide column; 32-blowing hole; 33-heater;

[0046] 4-UV light emitter;

[0047] 41- optical fiber;

[0048] 5-Industrial cameras;

[0049] 6- Lighting source;

[0050] 7- retracting mechanism;

[0051] 71-electromagnet; 72-iron plate; 73-corrugated telescopic sleeve; 74-electromagnetic controller; 75-guide rod; 76-first one-way valve; 77-second one-way valve; 78-main air pipe; 79-branch hose;

[0052] 8-Infrared sensor;

[0053] 9- Sensor button. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] See attached Figure 1 To Attachment Figure 4 The embodiment of the present invention discloses a device for detecting the quality of anti-counterfeiting printing of a wine packaging box, comprising:

[0056] Base 1, base 1 comprises a bottom plate 11, a top plate 12, and a support column 13 fixed between the bottom plate 11 and the top plate 12; an industrial camera 5 and an illumination light source 6 are mounted on the bottom plate 11;

[0057] The detection plate 2, the detection position in the middle of the detection plate 2 is a transparent plate 21, the transparent plate 21 corresponds to the camera of the industrial camera 5, the bottom edge of the detection plate 2 is fixed to the top surface of the bottom plate 11 through a plurality of support tubes 22, and the detection plate 2 is provided with a guide hole 23 located inside the support tube 22;

[0058] The heating plate 3 is located between the detection plate 2 and the top plate 12. The bottom surface of the heating plate 3 is fixed with guide posts 31 having the same number as the guide holes 23. The guide posts 31 pass through the guide holes 23 and are connected to the buffer springs 14 located inside the support tube 22. A retracting mechanism 7 is connected between the top surface of the heating plate 3 and the top plate 12. The retracting mechanism 7 can drive the heating plate 3 to rise and can release the heating plate 3 to make it fall by gravity.

[0059] The ultraviolet light emitter 4 is fixed on the bottom plate 11 and guides the ultraviolet light to the edge of the transparent plate 21 through a plurality of optical fibers 41 .

[0060] In order to further optimize the above technical solution, the pulling and retracting mechanism 7 includes a plurality of electromagnets 71 fixed on the bottom surface of the top plate 12, and a plurality of iron plates 72 corresponding to the electromagnets 71 fixed on the top surface of the heating plate 3. A corrugated telescopic sleeve 73 is sleeved on the outside of each group of corresponding electromagnets 71 and iron plates 72. The top end of the corrugated telescopic sleeve 73 is fixed to the top plate 12, and the bottom end is fixed to the heating plate 3. An electromagnetic controller 74 for controlling the magnetic on and off of the electromagnet 71 is installed on the top surface of the top plate 12.

[0061] In order to further optimize the above technical solution, the retracting mechanism 7 further includes a plurality of guide rods 75 , which are vertically fixed to the top edge of the heating plate 3 and pass upward through the sliding holes on the top plate 12 .

[0062] In order to further optimize the above technical solution, the retracting mechanism 7 also includes a first one-way valve 76 and a second one-way valve 77 installed at the top of the corrugated expansion sleeve 73; the first one-way valve 76 controls the one-way flow of gas from the outside to the inside of the corrugated expansion sleeve 73, and the second one-way valve 77 controls the one-way outflow of gas from the inside of the corrugated expansion sleeve 73 to the outside.

[0063] In order to further optimize the above technical solution, multiple second one-way valves 77 are connected to a main air pipe 78, the main air pipe 78 is connected to multiple branch hoses 79, the multiple branch hoses 79 are connected to multiple blowing holes 32 on the heating plate 3, and the multiple blowing holes 32 are arranged in a ring shape.

[0064] In order to further optimize the above technical solution, a heater 33 is fixed on the top surface of the heating plate 3 .

[0065] In order to further optimize the above technical solution, an infrared sensor 8 is also fixed to the top surface of the bottom plate 11 , and the infrared sensor 8 corresponds to the transparent plate 21 .

[0066] In order to further optimize the above technical solution, a sensing button 9 is provided on the top edge of the detection plate 2 .

[0067] See attached Figure 1, which is a structural schematic diagram of the anti-counterfeiting printing quality detection device for the wine packaging box provided in this embodiment in the non-working state. At this time, the electromagnetic controller 74 is in the working state, the electromagnet 71 and the iron plate 72 are in the adsorption state, the corrugated telescopic sleeve 73 is in the contraction state, and the heating plate 3 and the detection plate 2 are separated.

[0068] In this embodiment, a panel is disposed around the outer side of the support column 13 and has an opening for placing the packaging paper to be inspected.

[0069] At this time, the packaging paper to be inspected is placed on the transparent plate 21. In this embodiment, an infrared sensor 8 is set. The infrared sensor 8 senses the information and then controls the electromagnetic controller 74 to cut off the magnetism. The iron plate 72 is separated from the electromagnet 71. Under the action of gravity, the heating plate 3 falls. The fall of the heating plate 3 is buffered by the buffer spring 14. Before work, the heater 33 of the heating plate 3 has preheated the heating plate 3. When the heating plate 3 is attached to the detection plate 2, the sensing button 9 is pressed, the information is sensed, and the lighting source 6 and the ultraviolet light emitter 4 are controlled to turn on at the same time, and then the industrial camera 5 is controlled to take pictures after a delay of 1-2 seconds. Figure 2 When the industrial camera 5 completes the shooting, the electromagnetic controller 74 restarts to provide suction to the iron plate 72, driving the heating plate 3 to rise, thus completing a test.

[0070] In order to improve the efficiency, multiple groups of transparent plates 21 and heating plates 3 can be provided at the same time.

[0071] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0072] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for detecting the quality of anti-counterfeiting printing of wine packaging boxes, characterized in that: include: A base (1), the base (1) comprising a bottom plate (11), a top plate (12), and a supporting column (13) fixed between the bottom plate (11) and the top plate (12); an industrial camera (5) and an illumination light source (6) are mounted on the bottom plate (11); A detection plate (2), wherein the detection position in the middle of the detection plate (2) is a transparent plate (21), the transparent plate (21) corresponds to the camera head of the industrial camera (5), the bottom edge of the detection plate (2) is fixed to the top surface of the bottom plate (11) through a plurality of support tubes (22), and the detection plate (2) is provided with a guide hole (23) located inside the support tube (22); A heating plate (3), the heating plate (3) being located between the detection plate (2) and the top plate (12); the bottom surface of the heating plate (3) being fixed with guide posts (31) having the same number as the guide holes (23); the guide posts (31) passing through the guide holes (23) and being connected to the buffer springs (14) located inside the support tube (22); a retracting mechanism (7) being connected between the top surface of the heating plate (3) and the top plate (12); the retracting mechanism (7) being capable of driving the heating plate (3) to rise, and capable of releasing the heating plate (3) to make it fall by gravity; an ultraviolet light emitter (4), the ultraviolet light emitter (4) being fixed on the base plate (11) and guiding the ultraviolet light to the edge of the transparent plate (21) via a plurality of optical fibers (41); The retracting mechanism (7) comprises a plurality of electromagnets (71) fixed to the bottom surface of the top plate (12), and a plurality of iron plates (72) fixed to the top surface of the heating plate (3) and corresponding to the electromagnets (71); the outer sides of each group of corresponding electromagnets (71) and iron plates (72) are sleeved with a corrugated telescopic sleeve (73); the top end of the corrugated telescopic sleeve (73) is fixed to the top plate (12), and the bottom end is fixed to the heating plate (3); an electromagnetic controller (74) for controlling the on and off of the magnetic force of the electromagnets (71) is installed on the top surface of the top plate (12); The retracting mechanism (7) further comprises a plurality of guide rods (75), wherein the guide rods (75) are vertically fixed to the edge of the top surface of the heating plate (3) and pass upward through the sliding holes on the top plate (12); The retracting mechanism (7) further comprises a first one-way valve (76) and a second one-way valve (77) mounted on the top end of the bellows telescopic sleeve (73); the first one-way valve (76) controls the one-way flow of gas from the outside to the inside of the bellows telescopic sleeve (73), and the second one-way valve (77) controls the one-way flow of gas from the inside of the bellows telescopic sleeve (73) to the outside; The plurality of second one-way valves (77) are connected to a main air pipe (78), the main air pipe (78) is connected to a plurality of branch hoses (79), the plurality of branch hoses (79) are connected to a plurality of blowing holes (32) on the heating plate (3), and the plurality of blowing holes (32) are arranged in a ring shape; A heater (33) is fixed on the top surface of the heating plate (3); An infrared sensor (8) is also fixed to the top surface of the bottom plate (11), and the infrared sensor (8) corresponds to the transparent plate (21); The top edge of the detection plate (2) is provided with a sensing button (9).

2. A method for detecting the quality of anti-counterfeiting printing of wine packaging boxes, characterized in that: The anti-counterfeiting printing quality detection device for a wine packaging box according to claim 1 specifically comprises the following steps: S1, clamping the packaging paper to be inspected by a heating plate (3) and a transparent plate (21), with the anti-counterfeiting printed mark of the packaging paper to be inspected facing the transparent plate (21); S2, turning on the illumination light source (6) in a direction perpendicular to the transparent plate (21), irradiating ultraviolet light toward the transparent plate (21) at the edge of the transparent plate (21), wherein the ultraviolet light and the transparent plate (21) are located in the same plane; S3, using an industrial camera (5) to take an image of the inspected packaging paper in the direction of the transparent plate (21), and uploading the image to a computer analysis system to perform a quality comparison test on the anti-counterfeiting printed mark.

3. The method for detecting the anti-counterfeiting printing quality of a wine packaging box according to claim 2, characterized in that: When the heating plate (3) and the transparent plate (21) clamp the inspected packaging paper, the illumination light source (6) and the ultraviolet light are turned on simultaneously.

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