Paper gloss oil processing online detection device based on online code spraying equipment

Abstract

The invention discloses a paper gloss oil processing online detection device based on online code spraying equipment, and belongs to the technical field of cigarette case packaging paper gloss oil detection. The detection platform is arranged in a transverse state; supporting frames capable of supporting the detection platform are fixedly arranged on the two sides of the detection platform. A gloss oil detection device is arranged on the detection platform, and the two ends of the gloss oil detection device are fixedly connected with the supporting frames on the two sides of the detection platform; an electric conveying roller I and an electric conveying roller II are arranged on the front side of the gloss oil detection equipment on the detection platform; a defective product conveying table is arranged above the electric conveying roller II; an electric conveying roller III is arranged above the rear side of the defective product conveying table; according to the cigarette case packaging paper gloss oil detection device, gloss oil detection and defective product removal of cigarette case packaging paper can be completed without shutdown, and the cigarette case packaging paper processing and detection efficiency can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of cigarette box packaging paper varnish inspection technology, and in particular to an online inspection device for paper varnish processing based on an inline inkjet printer. Background Technology

[0002] In the inline coding process of cigarette box packaging paper, existing technologies typically equip the inline coding equipment with an online varnish inspection device to inspect the quality of the varnish coating on the paper surface during the conveying stage after the cigarette box packaging paper has been processed. The specific working method is as follows: when the inspection device identifies that the varnish coating of the paper being inspected does not meet the quality standards, the inline coding equipment and its supporting conveying equipment will immediately stop operating. Only after the inspection personnel manually transfer the defective paper to a designated area can the equipment be restarted to continue processing.

[0003] However, this method of handling defective products has significant drawbacks: the standby time of the equipment due to waiting for defective products to be transferred is too long, which interrupts the overall processing flow of cigarette box packaging paper, seriously affecting the overall progress and efficiency of online inkjet printing and varnish inspection, and failing to meet the requirements of industrial continuous production for equipment stability and efficiency. Therefore, this patent application designs an online inspection device for paper varnish processing based on online inkjet printing equipment, so as to realize online varnish inspection of cigarette box packaging paper without stopping the machine and to separately reject defective paper after inspection. Summary of the Invention

[0004] This invention provides an online inspection device for paper varnish processing based on an inline inkjet printer, in order to solve the aforementioned technical problems.

[0005] The present invention adopts the following technical solution: It includes a testing platform; the testing platform is horizontally positioned; support frames are fixedly installed on both sides of the testing platform to support it; a varnish testing device is installed on the testing platform, and both ends of the varnish testing device are fixedly connected to the support frames on both sides of the testing platform; an electric conveyor roller one and an electric conveyor roller two are installed on the testing platform in front of the varnish testing device; a defective product conveying platform is installed above the electric conveyor roller two; an electric conveyor roller three is installed above and behind the defective product conveying platform; and a defective product rejection mechanism is installed on the testing platform in the area between the electric conveyor roller one and the electric conveyor roller two.

[0006] Preferably, the defective product rejection mechanism includes a support plate, the two ends of which are fixedly connected to the support frames on both sides of the detection platform; a guide plate is provided below the support plate; multiple electric push cylinders are fixedly installed on the support plate, the output ends of the electric push cylinders are arranged downwards, the output ends of the electric push cylinders pass through the support plate from top to bottom and are fixedly connected to the guide plate below the support plate, and the guide plate below the support plate can be raised and lowered by the extension and retraction of the output ends of the electric push cylinders.

[0007] Preferably, the two ends of the guide plate extend toward the second electric conveyor roller; a connecting plate is provided below the guide plate, and the top of the connecting plate is in sliding fit with the extended portions at both ends of the guide plate, with the sliding direction being toward both the first and second electric conveyor rollers; a paper adsorption mechanism for adsorbing cigarette box packaging paper is provided at the bottom end of the connecting plate.

[0008] Preferably, the two ends of the connecting plate are bent and then extended upwards by a certain distance; guide rods are fixedly provided at the extended portions of the two ends of the connecting plate.

[0009] Preferably, guide grooves are provided on the support frames on both sides of the testing platform and at the corresponding connecting plates; the guide rods at both ends of the connecting plates extend into the guide grooves on both sides of the testing platform and can move along the trajectory of the guide grooves within the corresponding guide grooves.

[0010] Preferably, the bottom end of the guide groove is vertically arranged, and the middle section of the guide groove is bent and extends inclinedly towards the direction of the electric conveyor roller three.

[0011] Preferably, the paper adsorption mechanism includes multiple electric suction nozzles fixedly disposed at the bottom end of the connecting plate, and the electric suction nozzles are equipped with matching negative pressure adsorption equipment and control system.

[0012] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects: Firstly, in existing technologies, once defective cigarette packaging paper with substandard varnish coating is detected, the online coding and conveying equipment must be immediately suspended. The equipment can only be restarted after the defective product is manually transferred, resulting in significant downtime and slowing down the overall processing progress. This device, through the coordinated design of the detection platform, defective product rejection mechanism, and defective product conveyor, can handle defective products without interrupting equipment operation. The varnish detection equipment monitors the paper in real time during transport. If a defective product is identified, the defective product rejection mechanism immediately guides it to an independent defective product conveyor, while subsequent cigarette packaging paper can continue to be transported and inspected normally on the detection platform. The entire process requires no downtime, eliminating the downtime caused by defective products and enabling continuous operation of online coding and varnish detection for cigarette packaging paper, significantly improving overall production progress and equipment utilization.

[0013] Secondly, cigarette packaging paper covers a large area. If the traditional "vertical lifting" method is used to transfer defective products, the air resistance during the paper's ascent is too great, which can easily lead to the failure of the electric suction nozzle (paper falling off). Furthermore, continuous high-pressure suction will accelerate the wear and tear of the electric suction nozzle, increasing the frequency of component replacement and maintenance costs. This device uses a bent and inclined design of the guide groove (vertical at the bottom and inclined in three directions towards the electric conveyor roller in the middle), so that the transfer of defective products forms a composite trajectory of "first a short-distance vertical lifting (detaching from the detection platform surface), then a long-distance inclined transfer (moving towards the defective product conveyor)". On the one hand, the inclined transfer significantly reduces the air resistance during the paper's ascent, reduces the interference of air pressure on the adsorption effect, ensures the stable adsorption of defective paper by the electric suction nozzle, and avoids rework due to falling off. On the other hand, the reduction in adsorption pressure directly slows down the wear and tear of the electric suction nozzle, extends its service life, and reduces the company's component procurement and maintenance costs.

[0014] Third, traditional defective product rejection devices often require multiple independent drive devices (such as vertical drive motors and horizontal transfer motors) to control the "lifting" and "transfer" actions respectively, which not only makes the equipment structure complex and the procurement cost high, but also increases energy consumption. This device utilizes a coordinated design of "electric push cylinder, guide groove, and guide rod," enabling the complete transfer of defective products solely through the vertical extension and retraction of the electric push cylinder. When the electric push cylinder extends, it lowers the guide plate, and the guide rod moves downwards along the vertical section of the guide groove, allowing the electric suction nozzle to contact and adsorb the defective product. When the electric push cylinder retracts, the guide rod first moves upwards along the vertical section (lifting the defective product off the platform), and after reaching the bend in the middle section of the guide groove, it is naturally driven by the trajectory constraint to tilt and move the connecting plate towards the defective product conveyor (completing the transfer). The entire process requires no additional horizontal drive or other independent power equipment, simplifying the device structure, reducing equipment procurement and maintenance costs, and minimizing energy consumption, thus meeting the enterprise's production needs for "cost reduction and efficiency improvement, energy conservation and consumption reduction."

[0015] Fourth, in existing technologies, the manual transfer of defective products is prone to problems such as "missed picking" and "mixed picking" (e.g., defective products remain on the conveyor, or good products are mistakenly identified as defective), which directly affects the stability of finished product quality. This device ensures sorting accuracy through a closed-loop process of "automated detection and automatic rejection." The varnish detection equipment can determine whether the paper varnish coating meets the standards, and the defective product rejection mechanism achieves "one-to-one" defective product grabbing through the negative pressure adsorption of the electric suction nozzle. The defective products are directly transferred to an independent defective product conveyor (completely separated from the good product conveyor path), completely avoiding the mixing of defective and good products. At the same time, the entire process does not require manual intervention, eliminating the subjective error of manual sorting, ensuring that the final finished products all meet the varnish coating quality standards, and significantly improving the finished product qualification rate and quality stability of cigarette box packaging paper. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 Schematic diagram of the first operating state of the defective product rejection mechanism; Figure 3 Schematic diagram of the second operating state of the defective product rejection mechanism; Figure 4 Schematic diagram of the third operating state of the defective product rejection mechanism; Figure 5 A schematic diagram of the defective product rejection mechanism; Figure 6 This is a schematic diagram of the guide groove structure; Figure 7 This is a schematic diagram of the structure in which the guide rod and guide groove work together.

[0017] Figure Labels

[0018] Testing platform 1, support frame 11, guide groove 111; 12. Coating testing equipment; 13. Electric conveyor roller 1; 14. Electric conveyor roller 2; 15. Defective product conveyor table; 16. Electric conveyor roller 3; Defective product rejection mechanism 2, support plate 21, guide plate 22, electric push cylinder 23, connecting plate 24, guide rod 241; Paper adsorption mechanism 3, electric suction nozzle 31. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] This invention provides an online inspection device for paper varnish processing based on an inline coding device, including an inspection platform 1. The inspection platform 1 is horizontally positioned. Support frames 11 are fixedly installed on both sides of the inspection platform 1 to support it. A varnish inspection device 12 is installed on the inspection platform 1, and both ends of the varnish inspection device 12 are fixedly connected to the support frames 11 on both sides of the inspection platform 1. An electric conveyor roller 13 and an electric conveyor roller 14 are installed on the inspection platform 1 in front of the varnish inspection device 12. A defective product conveying platform 15 is installed above the electric conveyor roller 14. An electric conveyor roller 3 16 is installed above and behind the defective product conveying platform 15. A defective product rejection mechanism 2 is installed on the inspection platform 1 in the area between the electric conveyor roller 13 and the electric conveyor roller 14. The electric conveyor roller 13, electric conveyor roller 2 14, and electric conveyor roller 3 16 in this application are all prior art and are equipped with a matching control system. The electric driver on the corresponding conveyor roller can be driven by the operation control system to drive the corresponding conveyor roller to rotate, so as to convey the cigarette box packaging paper on the detection platform 1 and the defective product conveying table 15. Secondly, the varnish detection device 12 is a prior art device that can verify whether the varnish coating on the surface of the cigarette box packaging paper meets the quality standards. Its varnish detection end is set downward and faces the surface of the detection platform 1.

[0022] The existing inline coding equipment is equipped with an online varnish inspection device 12 during use. During the conveying process after the cigarette box packaging paper is processed, the varnish on the paper surface is inspected. If the inspected paper has a varnish coating that does not meet the quality standards, the inline coding equipment and conveying equipment will be stopped immediately and wait for the inspection personnel to transfer the defective product before restarting the equipment to continue processing. This operation process will cause the inline coding equipment to have an excessively long standby time, which will affect the overall processing progress of the cigarette box packaging paper. Therefore, this patent application provides corresponding equipment for online monitoring of varnish and rejection of defective products in inline coding equipment. In use, this device is installed in the inline coding equipment, and the detection platform 1 replaces the conveying platform of the inline coding equipment. When the processed cigarette box packaging paper is conveyed to the end of the detection platform 1, the varnish detection device 12 detects the varnish coating on the surface of the paper conveyed on the detection platform 1 to determine whether it meets the quality standards. If the varnish on the surface of the cigarette box packaging paper meets the quality standards, it continues to be conveyed forward by electric conveyor roller 13 and electric conveyor roller 24 and transferred to the next processing step. If the varnish coating of the cigarette box packaging paper in that area does not meet the quality standards, the paper is conveyed by electric conveyor roller 13 towards electric conveyor roller 24, and the defective paper is transferred to the defective product conveying table 1 by the defective product rejection mechanism 2. The paper is pulled upwards and placed onto the defective product conveyor 15, then driven by the electric conveyor roller 3 16 to continue conveying it to the front of the defective product conveyor 15. This process removes defective cigarette box packaging paper that does not meet the varnish quality standards and transfers it to an independent area. The cigarette box packaging paper that is subsequently tested for varnish can continue to be conveyed on the testing platform 1 below the defective product conveyor 15. If any paper that does not meet the varnish quality standards is detected during this process, it will continue to be pulled and conveyed onto the defective product conveyor 15 by the defective product rejection mechanism 2. This realizes the online monitoring process of the inline inkjet printing equipment. After the cigarette box packaging paper is tested, defective products are rejected, so as not to affect the subsequent paper testing and conveying progress. There is no need to stop the operation of the inline inkjet printing equipment and the conveying equipment when defective products are found. This can effectively improve the efficiency of inline inkjet printing processing and varnish testing of cigarette box packaging paper.

[0023] In a further preferred embodiment, the defective product rejection mechanism 2 includes a support plate 21, the two ends of which are fixedly connected to the support frames 11 on both sides of the detection platform 1; a guide plate 22 is provided below the support plate 21; a plurality of electric push cylinders 23 are fixedly installed on the support plate 21, the output ends of the electric push cylinders 23 are arranged downwards, the output ends of the electric push cylinders 23 pass through the support plate 21 from top to bottom and are fixedly connected to the guide plate 22 below the support plate 21, and the extension and retraction of the output ends of the electric push cylinders 23 can drive the guide plate 22 below the support plate 21 to move up and down, the two ends of the guide plate 22 extend towards the electric conveying roller 14; a connecting plate 24 is provided below the guide plate 22, the top of the connecting plate 24 is slidably engaged with the extended parts at both ends of the guide plate 22, and its sliding direction is towards the electric conveying roller 13 and the electric conveying roller 14; a paper adsorption mechanism 3 for adsorbing cigarette box packaging paper is provided at the bottom end of the connecting plate 24. The electric push cylinder 23 in this application is equipped with a matching control system. During use, the electric push cylinder 23 can be operated by issuing a running command through the control system, causing the output end of the electric push rod to extend downward and drive the guide plate 22 to lower downward, so that the paper adsorption mechanism 3 gradually approaches the detection platform 1. When the adsorption end of the paper adsorption mechanism 3 comes into contact with the defective cigarette box packaging paper conveyed on the detection platform 1, the paper adsorption mechanism 3 can adsorb the paper. Then, the output end of the electric push cylinder 23 retracts upward, driving the guide plate 22 and the paper adsorption mechanism 3 to lift upward, so that the adsorbed defective paper moves upward and gradually detaches from the surface of the detection platform 1, thereby ensuring that the defective paper does not obstruct the subsequent conveying process of good paper.

[0024] In a further preferred embodiment, the two ends of the connecting plate 24 are bent and extend upwards by a certain distance; guide rods 241 are fixedly provided at the extended portions of the two ends of the connecting plate 24; guide grooves 111 are provided on the support frames 11 on both sides of the detection platform 1 at the portions corresponding to the connecting plate 24; the guide rods 241 at both ends of the connecting plate 24 extend into the guide grooves 111 on both sides of the detection platform 1, and can move along the trajectory of the guide grooves 111 within the corresponding guide grooves 111; the bottom end of the guide groove 111 is vertically set, and the middle portion of the guide groove 111 is bent and extends inclinedly towards the direction of the electric conveyor roller 16.

[0025] In a further preferred embodiment, the paper adsorption mechanism 3 includes a plurality of electric suction nozzles 31 fixedly disposed at the bottom end of the connecting plate 24, and the electric suction nozzles 31 are equipped with a matching negative pressure adsorption device and control system. When the guide plate 22 is lowered by the electric push cylinder 23, the guide rods 241 at both ends of the connecting plate 24 will move downwards along the vertical trajectory from the middle section of the guide groove 111 until the bottom of the guide groove 111. At this time, the electric suction nozzle 31 in the paper adsorption mechanism 3 will come into contact with the defective paper on the detection platform 1, and the negative pressure adsorption device will be activated by the control system to drive the electric suction nozzle 31 to adsorb and pull the paper surface. When the guide plate 22 is raised by the driving action of the output end of the electric push cylinder 23, the guide rods 241 at both ends of the connecting plate 24 will gradually move upwards along the vertical trajectory from the bottom of the guide groove 111. The guide 111 moves along a vertical trajectory. After the guide rod 241 moves to the bend in the middle of the guide 111, since the connecting plate 24 and the guide plate 22 are in sliding fit, as the guide plate 22 continues to rise, the guide rods 241 at both ends of the connecting plate 24 will gradually drive the entire connecting plate 24 to move along the inclined trajectory of the upper part of the guide 111 towards the defective product conveying table 15. This will cause the defective paper that is sucked by the electric suction nozzle 31 to switch from the original vertical upward detachment from the detection platform 1 to the inclined upward state, so as to realize the process of conveying the defective paper from the detection platform 1 to the defective product conveying table 15. Since the cigarette box packaging paper has a large overall coverage area, if a continuous upward lifting method is used for traction, it will increase the adsorption pressure of the electric suction nozzle 31 when adsorbing the paper. If the air flow resistance on the upper surface of the paper is too large, it will cause the electric suction nozzle 31 to fail to adsorb the paper or accelerate the service life of the electric suction nozzle 31. Therefore, in this patent application, the stroke between the defective product conveying table 15 and the paper adsorption mechanism 3 on the detection platform 1 is set as an inclined trajectory, so that the paper can be conveyed in a way that is first a short distance vertical and then a long distance inclined during the upward lifting process, thereby reducing the air resistance encountered by the paper in the rising state, further reducing the air pressure encountered by the paper as it rises, and making the electric suction nozzle 31 adsorb and pull the paper more smoothly. Meanwhile, by using the guide groove 111 and the corresponding guide rod 241 on the support frame 11, the defective paper can be lifted upwards and then tilted and transferred without the need for other drive equipment during the vertical telescopic operation of the electric push cylinder 23. This further reduces the use of drive equipment and energy consumption, so that the whole set of equipment can improve the processing and inspection efficiency of cigarette box packaging paper in practical applications while achieving energy saving and consumption reduction.

[0026] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An online inspection device for paper varnish processing based on an inline inkjet printer, characterized in that, Including the testing platform (1); The detection platform (1) is set in a horizontal position; The testing platform (1) is fixedly provided with support frames (11) on both sides to support the testing platform (1). The testing platform (1) is equipped with a varnish testing device (12), and the two ends of the varnish testing device (12) are fixedly connected to the support frame (11) on both sides of the testing platform (1). The testing platform (1) is equipped with an electric conveyor roller one (13) and an electric conveyor roller two (14) located in front of the varnish testing equipment (12). A defective product conveying platform (15) is provided above the electric conveying roller 2 (14). An electric conveyor roller three (16) is provided on the upper rear side of the defective product conveyor (15). A defective product rejection mechanism (2) is provided on the detection platform (1) in the area between the electric conveyor roller one (13) and the electric conveyor roller two (14).

2. The online inspection device for paper varnish processing based on inline inkjet printing equipment according to claim 1, characterized in that, The defective product rejection mechanism (2) includes a support plate (21), and the two ends of the support plate (21) are fixedly connected to the support frames (11) on both sides of the detection platform (1); A guide plate (22) is provided below the support plate (21); Multiple electric push cylinders (23) are fixedly installed on the support plate (21). The output end of the electric push cylinder (23) is set downward. The output end of the electric push cylinder (23) passes through the support plate (21) from top to bottom and is fixedly connected to the guide plate (22) below the support plate (21). The guide plate (22) below the support plate (21) can be raised and lowered by the extension and retraction of the output end of the electric push cylinder (23).

3. The online inspection device for paper varnish processing based on inline inkjet printing equipment according to claim 2, characterized in that, The guide plate (22) extends at both ends toward the electric conveying roller (14); A connecting plate (24) is provided below the guide plate (22), and the top of the connecting plate (24) is in sliding fit with the extension parts at both ends of the guide plate (22); The bottom end of the connecting plate (24) is provided with a paper adsorption mechanism (3) that can adsorb the cigarette box packaging paper.

4. The online inspection device for paper varnish processing based on inline inkjet printing equipment according to claim 3, characterized in that, The two ends of the connecting plate (24) are bent and extended upwards by a certain distance; Guide rods (241) are fixedly installed at the extensions at both ends of the connecting plate (24).

5. The online inspection device for paper varnish processing based on an inline inkjet printer according to claim 3, characterized in that, Guide grooves (111) are provided on the support frames (11) on both sides of the detection platform (1) and at the corresponding parts of the connecting plate (24). The guide rods (241) at both ends of the connecting plate (24) extend into the guide grooves (111) on both sides of the detection platform (1).

6. The online inspection device for paper varnish processing based on an inline inkjet printer according to claim 5, characterized in that, The bottom of the guide groove (111) is vertically set, and the middle section of the guide groove (111) is bent and extends inclinedly towards the electric conveying roller three (16).

7. The online inspection device for paper varnish processing based on inline inkjet printing equipment according to claim 1, characterized in that, The paper adsorption mechanism (3) includes multiple electric suction nozzles (31) fixedly installed at the bottom of the connecting plate (24).

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