A varnish printed matter water mist phenomenon detection device

Abstract

The utility model discloses a varnish printing product water mist phenomenon detection device belongs to water mist detection technical field, including detection box, the front side of detection box is provided with the clamping mechanism that can hold cigarette packet wrapping paper, the front side of detection box and the just above of corresponding clamping mechanism is provided with heating equipment, is provided with the water mist detector who can form whether the water mist of cigarette packet wrapping paper surface at heating equipment's both sides, the inside of detection box is provided with the drive mechanism that can drive clamping mechanism, and drive motor drives traction, adjustment board and fan -shaped gear operation, make gear drive clamping board reciprocating rotation, simultaneously, clamping piece rear side support rod moves along the guide groove, and further bending of cigarette packet wrapping paper is pushed to simulate actual stress scene, heating equipment heats the area of coating, if coating has not closely adhered, and the clearance meets the heat and produces the water mist, and both sides water mist detector can accurate detection, and accordingly judge whether cigarette packet coating is qualified.

Description

Technical Field

[0001] This utility model relates to the field of water mist detection technology, and in particular to a device for detecting water mist phenomenon in varnished printed materials. Background Technology

[0002] Currently, in the production of cigarette packaging, a packaging film needs to be applied to the surface of the cigarette box to protect the varnish printing pattern from wear. During actual production, the cigarette box processing equipment generates a certain amount of heat. If the film is not completely adhered to the surface of the cigarette box during the film application process, gaps will appear between the cigarette box surface and the film. These gaps are prone to water vapor formation due to the heat from the processing equipment and changes in temperature and humidity in the processing environment. Therefore, after the cigarette box film application process, manual water vapor detection is required. During this operation, the cigarette box packaging paper needs to be bent appropriately and brought close to the heating equipment before judging whether there is water vapor on the surface of the cigarette box packaging paper. This type of detection method relies too heavily on the visual judgment of the inspector, which can easily lead to inaccurate detection results. Summary of the Invention

[0003] This utility model provides a device for detecting water mist phenomenon in varnish printed materials to solve the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: it includes a testing box; a clamping mechanism for clamping cigarette box packaging paper is provided on the front side of the testing box; a heating device is provided on the front side of the testing box and directly above the clamping mechanism; water mist detectors for detecting whether water mist forms on the surface of cigarette box packaging paper are provided on both sides of the heating device; and a driving mechanism for driving the clamping mechanism is provided inside the testing box.

[0005] Preferably, the clamping mechanism includes a clamping plate; the clamping plate is located at the front of the detection box; two clamping members are symmetrically arranged on the clamping plate to continue clamping both sides of the cigarette box packaging paper; a groove is provided on the opposite side of the two clamping members; a silicone coating is provided on the inner wall of the groove area of ​​the clamping member.

[0006] Preferably, the testing box has an internal chamber; the driving mechanism includes an adjusting plate; the adjusting plate is vertically positioned within the chamber of the testing box, and its top end is rotatably connected to the inner wall of the chamber, meaning the adjusting plate can rotate to the left and right sides of the testing box; a sector gear is fixedly mounted on the front side of the adjusting plate, with the outer teeth of the sector gear facing downwards; a matching gear is positioned below the sector gear and corresponding to the middle of the clamping plate, and the gear meshes with the teeth of the sector gear; a connecting shaft is provided between the gear and the clamping plate, and the connecting shaft is rotatably mounted on the front side of the testing box, with both ends of the connecting shaft fixedly connected to the center of the gear and the middle of the clamping plate, respectively.

[0007] Preferably, the adjusting plate is provided with a through groove with a straight trajectory; a traction member is provided vertically on the rear side of the adjusting plate; a cylindrical protrusion is provided at the bottom end of the traction member, the bottom end of the protrusion is fixedly connected to the traction member, and the front end of the protrusion extends into the through groove of the adjusting plate, and the protrusion can move along the through groove trajectory on the adjusting plate; a drive motor is provided at the rear side of the detection box, and the drive motor is fixedly mounted on the rear side of the detection box by a motor bracket; the output end of the drive motor passes through the rear side of the detection box and is fixedly connected to the top end of the traction member.

[0008] Preferably, the clamping plate has grooves at both ends, and the two clamping members are respectively disposed in the grooves at both ends of the clamping plate, and the clamping members are slidably engaged with the corresponding groove parts, that is, the two clamping members can move back and forth in the grooves towards both ends of the clamping plate.

[0009] Preferably, a guide groove is provided on the front side of the testing box and at the location of the two clamping members on the clamping plate; the guide groove is inclined around the axis of the connecting shaft, that is, one end of the guide groove is close to the axis of the connecting shaft and the other end is away from the connecting shaft; a support rod is fixedly provided on the rear side of the clamping member, the support rod extends into the arc trajectory guide groove on the front side of the testing box, and each support rod can move along the arc trajectory in the corresponding guide groove; a stop bar is fixedly provided in the lower middle part of the clamping plate.

[0010] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects: Firstly, existing methods for detecting water mist in cigarette boxes rely on manual bending of the cigarette box and visual judgment, which is prone to inaccurate results due to subjective errors. This device uses a drive mechanism to realize the automatic reciprocating rotation and bending of the cigarette box, and works in conjunction with a water mist detector for detection.

[0011] Secondly, cigarette boxes are prone to bending due to compression during transportation, stacking, and use, which may cause gaps in the coating and form water vapor when heated. Traditional testing methods cannot cover this scenario. This device simulates the actual bending state of cigarette boxes under stress by using a design of "a baffle to support the cigarette box to slightly arch it and a clamping component to push the cigarette box to bend it further". It can detect adhesion defects of the coating under tension (such as arching and air bubbles), ensuring that the test results can truly reflect the coating quality of the cigarette box in actual use and reduce the rate of defective products in subsequent circulation. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 Schematic diagram of the drive mechanism Figure 1 ; Figure 3 Schematic diagram of the drive mechanism Figure 2 ; Figure 4 Schematic diagram of the drive mechanism Figure 3 ; Figure 5 Schematic diagram of the clamping mechanism Figure 1 ; Figure 6 Schematic diagram of the clamping mechanism Figure 2 .

[0013] Attached Figure

[0014] Testing box 1, heating equipment 11, water mist detector 12, drive motor 13, guide groove 14; Clamping mechanism 2, clamping plate 21, slide groove 211, clamping component 22, groove 221, support rod 222, stop rod 23; Drive mechanism 3, adjusting plate 31, through groove 311, sector gear 32, gear 33, connecting shaft 34, traction component 35, protrusion 36. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model 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 utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] This utility model provides a device for detecting water mist phenomenon in varnished printed materials, including a detection box 1; a clamping mechanism 2 for clamping cigarette box packaging paper is provided on the front side of the detection box 1; a heating device 11 is provided on the front side of the detection box 1 and directly above the clamping mechanism 2; water mist detectors 12 for detecting whether water mist forms on the surface of the cigarette box packaging paper are provided on both sides of the heating device 11; a driving mechanism 3 for driving the clamping mechanism 2 is provided inside the detection box 1; the clamping mechanism 2 includes a clamping plate 21; the clamping plate 21 is located on the front side of the detection box 1; two clamping members 22 are symmetrically arranged on the clamping plate 21 for further clamping the sides of the cigarette box packaging paper; a groove 221 is provided on the opposite side of the two clamping members 22; a silicone coating is provided on the inner wall of the groove 221 area of ​​the clamping member 22. The detection box 1 has an internal chamber; the drive mechanism 3 includes an adjusting plate 31; the adjusting plate 31 is vertically arranged inside the chamber of the detection box 1, and the top of the adjusting plate 31 is rotatably connected to the inner wall of the chamber of the detection box 1, that is, the adjusting plate 31 can rotate to the left and right sides of the detection box 1 inside the detection box 1; a sector gear 32 is fixedly arranged on the front side of the adjusting plate 31, and the outer teeth of the sector gear 32 are arranged downwards; a matching gear 33 is arranged below the sector gear 32 and corresponding to the middle of the clamping plate 21, and the gear 33 is meshed with the teeth of the sector gear 32; a connecting shaft 34 is arranged between the gear 33 and the clamping plate 21, and the connecting shaft 34 is rotatably arranged on the front side of the detection box 1, and the two ends of the connecting shaft 34 are fixedly connected to the center of the gear 33 and the middle part of the clamping plate 21, respectively.

[0018] In a further preferred embodiment, the adjusting plate 31 is provided with a through groove 311 of a straight trajectory; a traction member 35 is provided vertically on the rear side of the adjusting plate 31; a cylindrical protrusion 36 is provided at the bottom end of the traction member 35, the bottom end of the protrusion 36 is fixedly connected to the traction member 35, and the front end of the protrusion 36 extends into the through groove 311 of the adjusting plate 31, and the protrusion 36 can move along the trajectory of the through groove 311 on the adjusting plate 31; a drive motor 13 is provided at the rear side of the detection box 1, and the drive motor 13 is fixedly mounted at the rear side of the detection box 1 by a motor bracket; the output end of the drive motor 13 passes through the rear side of the detection box 1 and is fixedly connected to the top end of the traction member 35. Among them, the water mist detector 12 and the heating device 11 in this patent application are prior art. The water mist detector 12 detects water mist using optical or electrical principles. The optical water mist detector can use a laser light source and a receiver to determine the presence of water mist by measuring the scattering and absorption of the laser beam when it passes through a thin film. The electrical water mist detector uses principles such as conductivity or capacitance changes to sense and measure water mist. The heating device 11 has a matching heating block at its bottom. Furthermore, the water mist detector 12, the heating device 11, and the drive motor 13 in this patent application are all equipped with a matching control system. In use, the cigarette box packaging paper can be placed between the two clamping members 22, with the film-covered side of the packaging paper facing upwards. Then, both sides of the packaging paper are inserted into the grooves 221 of the two clamping members 22, and the silicone coating in the grooves 221 clamps the embedded packaging paper. The output of the drive motor 13 can then be started slowly by operating the control system. When the drive motor 13 runs, its output will drive the traction member 35 to rotate synchronously, and the protrusion 36 will rotate synchronously around the output of the drive motor 13 as its axis, following the rotation of the traction member 35. As the protrusion 36 moves, it will affect the adjustment plate 31. Traction is applied in the through groove 311 area. Since the through groove 311 of the adjusting plate 31 is designed as a straight track, the protrusion 36 will move within the through groove 311 when it moves, causing the entire adjusting plate 31 to tilt. As the adjusting plate 31 tilts, the sector gear 32 connected to it will also run synchronously, causing the meshing gear 33 to rotate at a certain angle. Subsequently, the clamping plate 21 located in front of the detection box 1 will tilt along with the gear 33, causing the clamped cigarette box packaging paper to tilt. During operation, the heating device 11 can be activated to heat the surface film area of ​​the cigarette box packaging paper below. When the output end of the drive motor 13 rotates continuously, it can drive the traction member 35 and the protrusion 36 to maintain synchronous operation. When the protrusion 36 moves to the corresponding area on either the left or right side of the output end of the drive motor 13 and then moves upward, the protrusion 36 will move upward in the through groove 311 of the adjusting plate 31 and drive the adjusting plate 31 to gradually pull back from the inclined state to the vertical state. This process repeats itself. Through the cyclic rotation of the traction member 35, the entire adjusting plate 31 will also drive the sector gear 32 and the meshing gear 33 to rotate back and forth, thereby achieving... The cigarette box packaging paper is rotated back and forth below the heating device 11. If the film on the cigarette box packaging paper is not tightly attached during the testing process, a gap will be generated between the cigarette box packaging paper and the film, and a certain amount of water mist condensation will form after the heated block is heated. At this time, when the cigarette box packaging paper rotates to one side, the water mist detector 12 located on one side of the heating device 11 can detect water mist on the surface of the packaging paper to determine whether there is water mist condensation. If there is water mist, it means that the film of the cigarette box packaging paper is unqualified during the testing process. Secondly, the reciprocating rotation of the cigarette box packaging paper can prevent the heating block from concentrating heat on one spot for a long time. At the same time, the reciprocating rotation of the cigarette box packaging paper can also achieve a certain cooling effect through air circulation, thereby preventing the cigarette box packaging paper from overheating and being damaged.

[0019] In a further preferred embodiment, the clamping plate 21 is provided with grooves 211 at both ends, and the two clamping members 22 are respectively disposed in the grooves 211 at both ends of the clamping plate 21, and the clamping members 22 are slidably engaged with the corresponding grooves 211, that is, the two clamping members 22 can move back and forth in the grooves 211 towards both ends of the clamping plate 21. A guide groove 14 is provided on the front side of the detection box 1, corresponding to the two clamping members 22 on the clamping plate 21; the guide groove 14 is inclined around the axis of the connecting shaft 34, that is, one end of the guide groove 14 is close to the axis of the connecting shaft 34, and the other end is away from the connecting shaft 34; a support rod 222 is fixedly provided on the rear side of the clamping member 22, the support rod 222 extends into the arc trajectory guide groove 14 on the front side of the detection box 1, and each support rod 222 can move along the arc trajectory in the corresponding guide groove 14; a stop bar 23 is fixedly provided on the lower middle part of the clamping plate 21. In practical applications, cigarette boxes may be slightly bent due to compression during transportation, stacking, and use. If the film on some cigarette box packaging paper is not fully adhered, secondary gaps may occur, leading to water vapor formation when heated. Traditional detection methods alone are insufficient to determine whether the film on the surface of the cigarette box packaging paper has separated or not adhered properly after being bent under stress. Therefore, in the process of using this patent application, when installing cigarette box packaging paper, the packaging paper should be placed above the stop bar 23, and the stop bar 23 should be used to support the bottom of the packaging paper, so that the packaging paper forms a slightly arched and bent state. When the clamping plate 21 rotates around the connecting shaft 34, the support rod 222 on the rear side of the clamping member 22 will move within the corresponding guide groove 14. Taking the clamping plate 21 rotating clockwise in front of the detection box 1 as an example, the support rod 222 on the rear side of the clamping member 22 will gradually move from the end of the guide groove 14 away from the connecting shaft 34 to the end closer to the connecting shaft 34. The support rod 222 will gradually approach the connecting shaft 34 due to the inclined trajectory of the guide groove 14. Therefore, the support rod 222 will drive the two corresponding clamping members 22 to gradually move between the clamping plates 21. At this time, the two clamping members 22 will simultaneously apply a pushing force to both sides of the cigarette box packaging paper. The cigarette box packaging paper, which was originally slightly arched and bent due to the support of the stop rod 23, will also bend further due to the pushing action of the clamping members 22 on both sides. As the cigarette box packaging paper bends, its surface film area is also stretched. When the clamping plate 21 rotates to its original position, the two clamping parts 22 will gradually separate to both sides following the movement trajectory of the corresponding support rod 222 in the guide groove 14, causing the cigarette box packaging paper to spring back to its initial state. At this time, if the film area on the surface of the packaging paper after stretching produces arches or bubbles, water mist will be generated in its internal gaps after heating, indicating that the film coating of the tested packaging paper is unqualified.

[0020] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A device for detecting water mist phenomenon in varnish printed materials, characterized in that, Including the testing box (1); The front side of the testing box (1) is provided with a clamping mechanism (2) that can clamp the cigarette box packaging paper; A heating device (11) is provided on the front side of the detection box (1) and directly above the clamping mechanism (2). Water mist detectors (12) are installed on both sides of the heating device (11) to detect whether water mist is formed on the surface of the cigarette box packaging paper. The inside of the detection box (1) is provided with a drive mechanism (3) that can drive the clamping mechanism (2).

2. The device for detecting water mist phenomenon in varnished printed materials according to claim 1, characterized in that, The clamping mechanism (2) includes a clamping plate (21); The clamping plate (21) is located at the front of the detection box (1); Two clamping parts (22) are symmetrically arranged on the clamping plate (21) to continue clamping the two sides of the cigarette box packaging paper. The two clamping members (22) are provided with grooves (221) on opposite sides; The inner sidewall of the groove (221) area of ​​the clamping member (22) is provided with a silicone coating.

3. The device for detecting water mist phenomenon in varnished printed materials according to claim 1, characterized in that, The detection box (1) has a chamber inside; The drive mechanism (3) includes an adjustment plate (31); The adjustment plate (31) is set vertically in the chamber of the detection box (1), and the top of the adjustment plate (31) is rotatably connected to the inner wall of the chamber of the detection box (1), that is, the adjustment plate (31) can rotate in the left and right directions of the detection box (1). A sector gear (32) is fixedly provided on the front side of the adjusting plate (31), with the outer teeth of the sector gear (32) facing downwards; A matching gear (33) is provided at the lower part of the sector gear (32) and at the corresponding position in the middle of the clamping plate (21), and the gear (33) and the teeth of the sector gear (32) are in a meshing state. A connecting shaft (34) is provided between the gear (33) and the clamping plate (21). The connecting shaft (34) is rotatably located at the front of the detection box (1). The two ends of the connecting shaft (34) are fixedly connected to the center of the gear (33) and the middle part of the clamping plate (21), respectively.

4. The device for detecting water mist phenomenon in varnished printed materials according to claim 3, characterized in that, The adjusting plate (31) is provided with a through groove (311) with a straight trajectory. The rear side of the adjusting plate (31) is provided with a traction component (35) in a vertical position. The bottom end of the traction member (35) is provided with a cylindrical protrusion (36). The bottom end of the protrusion (36) is fixedly connected to the traction member (35), and the front end of the protrusion (36) extends into the through groove (311) of the adjustment plate (31). The protrusion (36) can move along the trajectory of the through groove (311) on the adjustment plate (31). A drive motor (13) is provided on the rear side of the detection box (1), and the drive motor (13) is fixedly installed on the rear side of the detection box (1) by a motor bracket; The output end of the drive motor (13) passes through the rear side of the detection box (1) and is fixedly connected to the top of the traction component (35).

5. The device for detecting water mist phenomenon in varnished printed materials according to claim 2, characterized in that, The clamping plate (21) has grooves (211) at both ends. Two clamping members (22) are respectively disposed in the grooves (211) at both ends of the clamping plate (21), and the clamping members (22) are in sliding fit with the corresponding grooves (211), that is, the two clamping members (22) can move back and forth in the grooves (211) towards both ends of the clamping plate (21).

6. The device for detecting water mist phenomenon in varnished printed materials according to claim 5, characterized in that, The front side of the detection box (1) and the part corresponding to the two clamping parts (22) on the clamping plate (21) are provided with guide grooves (14); The guide groove (14) is inclined around the central part of the connecting shaft (34), that is, one end of the guide groove (14) is close to the central part of the connecting shaft (34), and the other end is far away from the connecting shaft (34). A support rod (222) is fixedly provided on the rear side of the clamping member (22). The support rod (222) extends into the arc trajectory guide groove (14) on the front side of the detection box (1), and each support rod (222) can move along the arc trajectory in the corresponding guide groove (14). A stop bar (23) is fixedly installed in the lower middle part of the clamping plate (21).

Images