A printing device and process for inner liner paper for cigarette packets

Abstract

The application provides a printing device and process for inner liner paper for cigarette packets, and relates to the technical field of inner liner paper processing for cigarette packets.The device comprises a printing machine main body, which comprises a printing roller and an ink storage tank, and further comprises a coating device arranged inside the ink storage tank.The coating device is used to remove ink bubbles on the printing roller, and is simultaneously adapted to the diameter R1 and angular velocity W1 of the printing roller to uniformly carry particles and uniformly coat the ink wrapped with particles on the printing roller.The printing process comprises adding 10-13 parts of aluminum foil varnish, 0.3-0.6 parts of yellow paste, 0.1-0.3 parts of red paste, 3.5-4.5 parts of alcohol, 0.6-1 parts of liquid water and 0.2-0.4 parts of pearlescent particles into the ink storage tank;then, after uniform stirring, the printing machine main body cooperates with the coating device to print the ink and pearlescent particles onto the inner liner paper for cigarette packets.The application can uniformly coat the pearlescent particles, save costs and improve economic benefits.

Description

Technical Field

[0001] This invention relates to the field of cigarette pack inner lining paper processing technology, and in particular to a printing apparatus and process for cigarette pack inner lining paper. Background Technology

[0002] Cigarette inner lining paper is the paper between the cigarette pack and the cigarette box. It plays a role in preventing moisture, retaining moisture, preserving aroma, and blocking light. It can prevent the cigarette from becoming moldy and the aroma from escaping. It is an important cigarette packaging material. In the processing of cigarette inner lining paper, it is often necessary to use a gravure printing machine to print trademarks, patterns, or text on the inner lining paper to achieve the functions of aesthetics and anti-counterfeiting. Therefore, a cigarette inner lining paper printing device is required.

[0003] Existing printing devices for cigarette pack inner lining paper, such as the ink supply device for a gravure printing machine for cigarette tipping paper and inner lining paper disclosed in patent number CN209888356U, include a reaction vessel and an ink supply basin above it. A mechanical stirring device is provided inside the reaction vessel, and it also includes a circulating pump, a temperature controller, an ink circulation pipe, and an ink return pipe. The reaction vessel, ink circulation pipe, ink supply basin, and ink return pipe sequentially form a circulation loop. This prior art discloses the use of a gravure printing machine to print cigarette pack inner lining paper. Another example is patent number CN117507566A, which discloses a gravure printing machine based on self-overflow defoaming and its application in the preparation of tobacco packaging boxes. This includes a return ink pool, a self-overflowing ink outlet element horizontally and centrally located within the return ink pool, and a... An ink supply assembly is provided; the printing cylinder is laterally rotated within the reflux ink reservoir via two sets of support frames positioned opposite each other on both sides of the reflux ink reservoir and located directly above the self-overflowing ink outlet element; a pressure cylinder is also provided directly above the printing cylinder; a bubble removal module is laterally and horizontally positioned on the right side of the printing cylinder along the long side of the reflux ink reservoir; a first doctor blade and a second doctor blade are also provided above the bubble removal module, but the existing solution is only used to remove air bubbles from the ink on the printing roller.

[0004] To enhance the color of the printed text and patterns on the inner lining paper of cigarette packs, this technology adds granular materials to the ink. At the same time, by improving existing gravure printing machines, the granular materials are evenly coated with the ink and printed onto the inner lining paper of cigarette packs. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a printing apparatus and process for cigarette pack inner lining paper. By combining the coating device structure with the printing roller structure of the printing press body, the invention achieves the function of uniformly printing cigarette pack inner lining paper containing pearlescent particles, and uniformly coating the pearlescent particles and ink onto the printing roller, thereby greatly improving the printing effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A printing apparatus for cigarette pack inner liner paper includes a printing machine body, the printing machine body including a printing roller and an ink storage tank, and a coating device disposed inside the ink storage tank. The coating device is used to remove ink bubbles on the printing roller. The coating device is adapted to the diameter R1 and angular velocity W1 of the printing roller to uniformly carry particles and uniformly coat the ink containing the particles onto the printing roller.

[0007] Preferably, the main body of the printing press further includes a frame and a pressure roller. The frame is provided with a drive mechanism for driving the printing roller to rotate, and the inner lining paper for the cigarette pack passes between the printing roller and the pressure roller. The drive mechanism is movably mounted on the connecting shaft on the frame. The end of the connecting shaft is provided with a mounting groove shell. The central shaft at both ends of the printing roller is connected to a mounting block. The mounting block is located inside the mounting groove shell and is connected to the mounting groove shell by bolts.

[0008] Preferably, the frame is provided with a connecting mechanism for connecting the coating device. The connecting mechanism includes an inclined slide rod and a sliding frame with its upper end movably disposed at the lower end of the slide rod. The sliding frame is vertically disposed. A transmission shaft is movably disposed at the upper end of the sliding frame, and a drive shaft is movably disposed at the lower end of the sliding frame. The transmission shaft drives the drive shaft to rotate through transmission components located inside both ends of the sliding frame.

[0009] Preferably, the coating device includes a transverse shaft disposed between the drive shafts. Six sets of flexible connecting rods are provided on the transverse shaft. The six sets of flexible connecting rods are arranged in a circumferential array around the transverse shaft at equal angles. Each set of flexible connecting rods has three rods, located at both ends and the middle of the transverse shaft. The flexible connecting rods have a curved structure. Three sets of flexible connecting rods are connected to rubber coating sheets. The rubber coating sheets are concave in the middle and curved overall. Flexible mounting strips are hinged to the other three sets of flexible connecting rods. Rubber coating strips are mounted on the upper ends of the flexible mounting strips. Mesh is provided on the flexible mounting strips, and the mesh is staggered with the rubber coating sheets. The longitudinal cross-sections of the flexible mounting strips and the rubber coating strips are the same as the longitudinal cross-sections of the rubber coating sheets. The end edges of the rubber coating sheets and the rubber coating strips are rounded. The end of the rubber coating strips has equally spaced arrayed protrusions. The other three sets of resilient connecting rods are provided with a first rotating block at the end, and the lower end of the resilient mounting strip is provided with a second rotating block and a locking block. A rotating shaft and a torsion spring are connected between the first rotating block and the second rotating block, and one side wall of the locking block is in contact with the side wall of the first rotating block. The upper outer wall of the flexible mounting strip located at both ends of the horizontal axis is provided with a convex shaft, the side wall of the sliding frame is provided with a right angle strip, the convex shaft and the right angle strip are adapted to each other, the lower inner side of the ink storage tank is provided with an arc ring, the inside of the arc ring is provided with a circumferentially arrayed protrusion, the corners of the protrusion are rounded, and the convex shaft and the protrusion are adapted to each other.

[0010] Preferably, the line connecting the center point of the horizontal axis and the center point of the printing roller is parallel to the inclined slide rod, and the slide rod is provided with a first electric telescopic rod, the lower output end of the first electric telescopic rod being connected to the upper end of the sliding frame.

[0011] Preferably, the main body of the printing press further includes a doctor blade mechanism, which includes a second electric telescopic rod embedded in the ink reservoir, a crossbar installed at the output end of the second electric telescopic rod, and a blade holder movably mounted on the crossbar. The blade holder is provided with a detachable doctor blade. A reciprocating assembly is connected between the middle of the crossbar and the middle of the blade holder. The reciprocating assembly drives the blade holder and the doctor blade to move laterally and reciprocally. The ends of the rubber-coated sheet and the rubber-coated strip are both adapted to the lower surface of the doctor blade.

[0012] Preferably, the ink storage tank is further provided with a stirring mechanism. The stirring mechanism and the coating device are symmetrically distributed about the central axis of the printing roller. The stirring mechanism includes a crossbar disposed inside the ink storage tank. Gears are movably disposed at both ends of the crossbar. A chain is meshed on the gears. A stirring blade is connected to the chain link.

[0013] Preferably, the printing press body has a control system, which includes a liquid level warning unit. A liquid level sensor is provided at the lower end of the sliding frame, and the liquid level sensor is connected to a warning device. If the ink level in the ink storage tank is lower than the liquid level sensor, the warning device will issue a warning under the control of the liquid level warning unit.

[0014] Preferably, in the initial state, the rubber-coated sheet and the rubber-coated strip are in contact with the printing roller. At this time, the flexible connecting rod, the flexible mounting strip, and the rubber-coated sheet do not deform. The distance between adjacent rubber-coated sheets and rubber-coated strips and the contact points with the printing roller is L, and the included angle is α. Under the control of the control system, the angular velocity W1 and dimension R1 of the printing roller are input. The control system outputs the angular velocity W2 of the drive shaft through the processing module, so that the mesh and the rubber-coated strip coat the outer surface of the printing roller twice, and at the same time, the rubber-coated sheet coats the mesh coating junction again.

[0015] A printing process for cigarette pack inner lining paper, wherein the printing is performed using a cigarette pack inner lining paper printing device, specifically including the following steps: S1: Add 12 parts aluminum foil varnish, 0.36 parts yellow paste, 0.14 parts red paste, 3.75 parts alcohol, 0.7 parts liquid water and 0.3 parts pearlescent particles to the ink storage tank; S2: After being thoroughly mixed, the printing press, in conjunction with the coating device, prints the ink and pearlescent particles onto the inner lining paper of the cigarette pack.

[0016] The beneficial effects of this invention are as follows: (1) In this invention, by setting up a coating device, during the rotation of the printing roller, the printing roller first passes through the ink inside the ink storage tank. Then, as the printing roller continues to rotate, the drive shaft drives the horizontal shaft to rotate, and the horizontal shaft drives the flexible connecting rod to rotate. One set of flexible connecting rods drives the flexible mounting strip to rotate inside the ink. The mesh of the mesh on the flexible mounting strip just carries the pearlescent particles. At the same time, as the flexible mounting strip continues to rotate, the mesh just transfers the pearlescent particles to the printing roller. Then, it is coated by the rubber coating strip. At the same time, the convex dots evenly distributed in an array at the end of the rubber coating strip can remove air bubbles and avoid ink bubbles. If the ink coating is uneven, another set of flexible connecting rods will drive the rubber coating sheet to rotate, and at the same time, the ink stored in the concave curved part of the rubber coating sheet will be coated onto the printing roller again. This will result in the printing roller being coated with another layer of ink. The printing roller will then be coated with a layer of ink that has passed through the ink reservoir, a second layer of ink with pearlescent particles that has passed through the screen, a third layer of ink that has passed through the rubber coating sheet, a fourth layer of ink with pearlescent particles that has passed through the screen, and a fifth layer of ink that has passed through the rubber coating sheet. The three layers of ink sandwiching two layers of pearlescent ink will ensure the texture and color of the print.

[0017] (2) In this invention, when the tough mounting strip rotates inside the ink, the convex shaft and the convex block continuously mesh. At the same time, when the first rotating block and the second rotating block rotate around the axis under the action of the torsion spring, the mesh can continuously shake inside the ink, making the pearlescent particles on the mesh more uniform. Furthermore, when the mesh transfers the pearlescent particles to the printing roller, the distribution of the pearlescent particles is more uniform, further improving the printing texture of the cigarette pack inner liner paper.

[0018] (3) In this invention, after the toughness mounting strip rotates out of the ink, when it rotates to the top, the convex shaft and the right-angle strip are matched with each other. Specifically, the convex shaft is obstructed by the right-angle strip. Since the horizontal shaft continues to drive the toughness mounting strip to rotate, the first rotating block and the second rotating block continue to rotate around the axis under the action of the torsion spring. At the same time, energy is accumulated on the torsion spring. As the toughness mounting strip continues to rotate, the right-angle strip no longer obstructs the convex shaft. Under the elastic potential energy of the torsion spring, the toughness mounting strip directly carries the screen to hit the printing roller, and finally realizes that the pearlescent particles on the screen are directly, quickly and evenly hit onto the printing roller, which further improves the uniform distribution of pearlescent particles and improves the printing texture of the cigarette pack inner lining paper.

[0019] (4) In this invention, driven by the horizontal axis, the rotation time from the point M1 where the rubber coating strip first contacts the printing roller to the point M4 where it leaves the printing roller is t. In order to ensure that the mesh and the rubber coating strip coat the outer surface of the printing roller twice, and at the same time, the rubber coating sheet coats the mesh coating junction again, the printing roller moves from point M4 to point M3 under the drive of angular velocity W1. Since points M2 and M3 are the trisection points of arc M1M4, and the length of chord M1M4 is a constant L, we can obtain L. 2 =2R1 2 -2R1 2 cosa, a=arccos[(2R1) 2 -L 2 ) / 2R1 2 At time t, the printing roller rotates by an arc of M4M3 at an angular velocity W1, and thus rotates by an angle of a / 3. Since W2t=π / 3, W1t=a / 3; W2=(W1π) / a, we can conclude that W2=(W1π) / arccos[(2R1 2 -L 2 ) / 2R1 2 The formula is W2 = f(W1, R1). When printing rollers of different diameters are replaced and different angular velocities W1 are set, the control system outputs the corresponding angular velocity W2 of the drive shaft, which corresponds to each other. This ensures that the mesh and rubber coating strip coat the outer surface of the printing roller twice, and the rubber coating sheet coats the mesh coating junction again, thus improving the texture of the inner lining paper of the printed cigarette pack.

[0020] (5) By setting up a coating device, since the ends of the rubber coating sheet and the rubber coating strip are adapted to each other with the lower surface of the doctor blade, the ends of the rubber coating sheet and the rubber coating strip can scrape off the ink remaining on the lower surface of the doctor blade during the rotation of the rubber coating sheet and the rubber coating strip, thereby improving the service life of the doctor blade. At the same time, the coating device can also stir the ink.

[0021] In summary, the present invention, by setting up a coating device, has the advantages of uniform ink mixing, the ability to print cigarette pack liner paper containing pearlescent particles, improving the texture and color of cigarette pack liner paper, increasing the service life of the doctor blade, and improving economic efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the isometric structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the overall structure from another perspective of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 8 This is a schematic diagram of the overall structure of the doctor blade mechanism and the main body of the printing press of the present invention; Figure 9 This is the first auxiliary diagram for the control system to calculate the horizontal axis angular velocity W2 in this invention; Figure 10 This is the second auxiliary diagram for the control system to calculate the horizontal axis angular velocity W2 in this invention; Figure 11 This is a schematic diagram of the alternating application of rubber coating strips and rubber coating sheets in this invention; Figure 12 This is a schematic diagram of the connection structure between the connecting mechanism and the coating device in this invention; Figure 13 For the present invention Figure 12 Enlarged view of point D in the middle; Figure 14 For the present invention Figure 13 Enlarged view at point E in the middle; Figure 15 A schematic diagram of the overall structure of the intermediate coating device; Figure 16 For the present invention Figure 15 Enlarged view of point F in the middle.

[0023] In the diagram: 1. Printing press body; 2. Coating device; 3. Connecting mechanism; 4. Stirring mechanism; 5. Liquid level sensor; 11. Printing roller; 12. Ink reservoir; 13. Frame; 14. Pressure roller; 15. Drive mechanism; 16. Doctor blade mechanism; 201. Horizontal shaft; 202. Flexible connecting rod; 203. Rubber coated sheet; 204. Flexible mounting strip; 205. Rubber coated strip; 206. Mesh; 207. First rotating block; 208. Second rotating block; 209. Locking block; 210. Rotating shaft; 211. Torsion spring; 212. Convex shaft; 213. Right-angle strip; 214. 215. Arc ring; 216. Protrusion; 301. Slide rod; 302. Slide frame; 303. Drive shaft; 304. Drive shaft; 305. First electric telescopic rod; 306. Third motor; 401. Crossbar; 402. Gear; 403. Chain; 404. Stirring blade; 405. Fourth motor; 151. Connecting shaft; 152. Mounting slot; 153. Mounting block; 154. First motor; 155. Second motor; 161. Second electric telescopic rod; 162. Crossbar; 163. Blade clamp; 164. Doctor blade; 165. Reciprocating assembly. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Example 1 like Figure 1-16As shown, this embodiment provides a printing apparatus for inner lining paper of cigarette packs, such as... Figure 1 As shown, the printing press body 1 includes a printing roller 11 and an ink reservoir 12. It also includes a coating device 2 disposed inside the ink reservoir 12. The coating device 2 is used to remove ink bubbles on the printing roller 11. The coating device 2 is adapted to the diameter R1 and angular velocity W1 of the printing roller 11 to uniformly carry particles and uniformly coat the ink containing the particles onto the printing roller 11.

[0027] It should be noted that the printing press body 1 in this embodiment also includes other additional structural features to realize the entire gravure printing process. These are common knowledge to those skilled in the art and will not be described in detail here. Other additional structural features are not shown in the figure, such as the collection roll and the raw material roll shell support.

[0028] like Figure 2 As shown, preferably, the printing press body 1 also includes a frame 13 and a pressure roller 14. The frame 13 is provided with a drive mechanism 15, which is used to drive the printing roller 11 to rotate. The inner lining paper for the cigarette pack passes between the printing roller 11 and the pressure roller 14. It is worth mentioning that the frame 13 mainly supports the pressure roller 14 and the printing roller 11. The printing roller 11 works with the pressure roller 14 to print on the inner lining paper of the cigarette pack. like Figure 7 As shown, the drive mechanism 15 includes a connecting shaft 151 movably mounted on the frame 13. The end of the connecting shaft 151 is provided with a mounting groove 152. The central shaft portions at both ends of the printing roller 11 are connected to mounting blocks 153. The mounting blocks 153 are located inside the mounting groove 152 and are connected to the mounting groove 152 by bolts.

[0029] like Figure 7 As shown, it should be noted that when replacing the printing roller 11, first remove the bolts between the mounting groove 152 and the mounting block 153, then directly remove the printing roller 11, and then place the mounting block 153 of the new printing roller 11 inside the mounting groove 152 and fix it with bolts again to finally complete the replacement of the printing roller 11. like Figure 6 As shown, it is worth mentioning that the frame 13 is equipped with a first motor 154 and a second motor 155. The output end of the first motor 154 is connected to the end of the connecting shaft 151 to drive the connecting shaft 151 to rotate. The connecting shaft 151 drives the printing roller 11 to rotate. At the same time, the control system configures the rotational angular velocity W1 of the connecting shaft 151. The output end of the connecting shaft 151 is connected to the pressure roller 14, and the second motor 155 is used to drive the pressure roller 14 to rotate.

[0030] like Figure 2As shown, preferably, the frame 13 is provided with a connecting mechanism 3 for connecting the coating device 2. The connecting mechanism 3 includes an inclined slide rod 301 and a sliding frame 302 movably disposed at the lower end of the slide rod 301. The sliding frame 302 is vertically disposed. A transmission shaft 303 is movably disposed at the upper end of the sliding frame 302, and a drive shaft 304 is movably disposed at the lower end of the sliding frame 302. The transmission shaft 303 drives the drive shaft 304 to rotate through the transmission components located inside the two ends of the sliding frame 302. The line connecting the center point of the horizontal shaft 201 and the center point of the printing roller 11 is parallel to the inclined slide rod 301. A first electric telescopic rod 305 is provided on the slide rod 301. The lower output end of the first electric telescopic rod 305 is connected to the upper end of the sliding frame 302.

[0031] like Figure 4 As shown, it should be noted that after replacing different printing rollers 11, the diameter R1 of the printing roller 11 changes. For example, the diameter is reduced to R2, and the reduction is R1-R2. Before the reduction, the coating device 2 is in contact with the printing roller 11. After replacing with a smaller diameter printing roller 11, the coating device 2 is no longer in contact with the printing roller 11. At this time, the first electric telescopic rod 305 drives the sliding frame 302 to slide obliquely upward along the sliding rod 301 for a length of R1-R2, and the coating device 2 re-engages with the printing roller 11. This ensures that the coating device 2 can still maintain efficient ink coating after replacing the printing roller 11.

[0032] like Figure 4 As shown, it is worth mentioning that in this embodiment, the tilt angle of the line connecting the center point of the printing roller 11 and the center point of the drive shaft 304 is the same as the tilt angle of the slide bar 301, which makes it easier to adjust the position of the sliding frame 302 after replacing the printing roller 11, and thus facilitates the re-adaptation of the position of the coating device 2.

[0033] like Figure 3 , Figure 5 , Figure 12 , Figure 13 , Figure 14 , Figure 15 as well as Figure 16As shown, preferably, the coating device 2 includes a horizontal shaft 201 disposed between the drive shafts 304. Six sets of flexible connecting rods 202 are provided on the horizontal shaft 201. The six sets of flexible connecting rods 202 are arranged in a circumferential array around the horizontal shaft 201 at equal angles. Each set of flexible connecting rods 202 has three rods, located at both ends and the middle of the horizontal shaft 201. The flexible connecting rods 202 have a curved structure. Three sets of flexible connecting rods 202 are each connected to a rubber coating sheet 203. The rubber coating sheet 203 has a concave center and is curved overall. The other three sets of flexible connecting rods... A flexible mounting strip 204 is hinged to the flexible connecting rod 202. A rubber-coated strip 205 is installed on the upper end of the flexible mounting strip 204. A mesh 206 is provided on the flexible mounting strip 204. The mesh 206 and the rubber-coated sheet 203 are distributed alternately. The longitudinal section of the flexible mounting strip 204 and the rubber-coated strip 205 is the same as the longitudinal section of the rubber-coated sheet 203. The edges of the rubber-coated sheet 203 and the rubber-coated strip 205 are rounded. The ends of the rubber-coated strip 205 are provided with equally spaced arrayed protrusions 216. It should be noted that in actual use, during the rotation of the printing roller 11, the printing roller 11 first passes through the ink inside the ink reservoir 12. Then, as the printing roller 11 continues to rotate, the drive shaft 304 drives the horizontal shaft 201 to rotate, and the horizontal shaft 201 drives the flexible connecting rod 202 to rotate. One set of flexible connecting rods 202 drives the flexible mounting strip 204 to rotate inside the ink. The mesh of the mesh 206 on the flexible mounting strip 204 just carries pearlescent particles. At the same time, as the flexible mounting strip 204 continues to rotate, the mesh 206 just transfers the pearlescent particles to the printing roller 11. Then, it is coated by the rubber coating strip 205. At the same time, the convex dots 216 evenly distributed at the end of the rubber coating strip 205 can remove air bubbles and prevent ink from forming. Air bubbles cause uneven ink coating. Then, another set of flexible connecting rods 202 drives the rubber coating sheet 203 to rotate, and at the same time, the ink stored in the concave and curved part of the rubber coating sheet 203 is coated onto the printing roller 11 again, so that the printing roller 11 is coated with another layer of ink. This makes the printing roller 11 have a multi-layer coating of ink, which is three layers of ink dipped into the ink storage tank 12, a second layer of ink with pearlescent particles coated by the mesh 206, a third layer of ink coated by the rubber coating sheet 203, a fourth layer of ink with pearlescent particles coated by the mesh 206, and a fifth layer of ink coated by the rubber coating sheet 203. This ensures the texture and color of the printing.

[0034] like Figure 12As shown, specifically, the sliding frame 302 is equipped with a third motor 306. The output end of the third motor 306 drives the transmission shaft 303 to rotate. The transmission shaft 303 drives the drive shaft 304 to rotate through the internal transmission components located at both ends of the sliding frame 302, ultimately driving the horizontal shaft 201 to rotate. The internal transmission components at both ends of the sliding frame 302 include gears respectively set between the transmission shaft 303 and the drive shaft 304. A chain is movably connected between the two gears, and the transmission is ultimately achieved through the chain and the gears.

[0035] like Figure 14 As shown, the other three sets of flexible connecting rods 202 are provided with first rotating blocks 207 at their ends, and the lower end of the flexible mounting strip 204 is provided with second rotating blocks 208 and locking blocks 209. The first rotating blocks 207 and the second rotating blocks 208 are connected by a rotating shaft 210 and a torsion spring 211. One side wall of the locking block 209 is in contact with the side wall of the first rotating block 207. The outer side wall of the upper end of the flexible mounting strip 204 located at both ends of the horizontal shaft 201 is provided with a convex shaft 212, and the side wall of the sliding frame 302 is provided with a right angle strip 213. The convex shaft 212 and the right angle strip 213 are adapted to each other. The lower side of the ink storage tank 12 is symmetrically provided with an arc ring 214. The arc ring 214 is provided with a circumferential array of protrusions 215 inside. The corners of the protrusions 215 are rounded. The convex shaft 212 and the protrusions 215 are adapted to each other.

[0036] like Figure 13 As shown, further, in actual use, when the toughness mounting strip 204 rotates inside the ink, the convex shaft 212 and the convex block 215 continuously mesh. At the same time, when the first rotating block 207 and the second rotating block 208 rotate around the shaft 210 under the action of the torsion spring 211, the mesh 206 can continuously vibrate inside the ink, making the pearlescent particles on the mesh 206 more uniform. Furthermore, when the mesh 206 transfers the pearlescent particles to the printing roller 11, the distribution of the pearlescent particles is more uniform, further improving the printing texture of the cigarette pack inner liner paper.

[0037] It should be added that, since there is no convex shaft 212 on the rubber coated sheet 203, the rubber coated sheet 203 directly carries a portion of the ink inside the ink and then slides over it. In this embodiment, the distribution of pearlescent particles in the intermediate layer is more uniform.

[0038] like Figure 13As shown, it is worth mentioning that after the flexible mounting strip 204 rotates out of the ink, when it rotates to the top, the convex shaft 212 and the right-angle strip 213 are matched with each other. Specifically, the convex shaft 212 is obstructed by the right-angle strip 213. Since the horizontal shaft continues to drive the flexible mounting strip 204 to rotate, the first rotating block 207 and the second rotating block 208 continue to rotate around the axis 210 under the action of the torsion spring 211. At the same time, energy is accumulated on the torsion spring 211. As the flexible mounting strip 204 continues to rotate, the right-angle strip 213 no longer obstructs the convex shaft 212. Under the elastic potential energy of the torsion spring 211, the flexible mounting strip 204 directly carries the screen 206 to hit the printing roller 11, and finally realizes that the pearlescent particles on the screen 206 are directly, quickly and evenly hit onto the printing roller 11, which further improves the uniform distribution of pearlescent particles and improves the printing quality of the cigarette pack inner lining paper.

[0039] like Figure 8 As shown, preferably, the printing press body 1 further includes a doctor blade mechanism 16. The doctor blade mechanism 16 includes a second electric telescopic rod 161 embedded in the ink reservoir 12, a horizontal bar 162 installed at the output end of the second electric telescopic rod 161, and a blade holder 163 movably disposed on the horizontal bar 162. The blade holder 163 is provided with a detachable doctor blade 164. A reciprocating assembly 165 is connected between the middle of the horizontal bar 162 and the middle of the blade holder 163. The reciprocating assembly 165 drives the blade holder 163 and the doctor blade 164 to move laterally and reciprocally. The ends of the rubber coated sheet 203 and the rubber coated strip 205 are adapted to each other with the lower surface of the doctor blade 164.

[0040] It is worth mentioning that in actual use, the output end of the second electric telescopic rod 161 drives the horizontal bar 162 to slide laterally, which enables the doctor blade 164 to adapt to printing rollers 11 of different diameters. At the same time, pressure is applied to the doctor blade 164 to ensure that the doctor blade 164 can better fit the printing roller 11 and improve the doctoring effect.

[0041] like Figure 8 As shown, it is worth noting that the reciprocating assembly 165 consists of a motor and an eccentric shaft, and the blade holder 163 is provided with a strip groove. During the continuous rotation of the eccentric shaft driven by the motor, the eccentric shaft and the strip groove are adapted to each other, ultimately driving the blade holder 163 and the doctor blade 164 to move laterally and reciprocally. At the same time, since the ends of the rubber coated sheet 203 and the rubber coated strip 205 are adapted to the lower surface of the doctor blade 164, during the rotation of the rubber coated sheet 203 and the rubber coated strip 205, the ends of the rubber coated sheet 203 and the rubber coated strip 205 can also scrape off the ink remaining on the lower surface of the doctor blade 164, thereby improving the service life of the doctor blade 164.

[0042] like Figure 6As shown, preferably, the ink storage tank 12 is also provided with a stirring mechanism 4. The stirring mechanism 4 and the coating device 2 are symmetrically distributed about the central axis of the printing roller 11. The stirring mechanism 4 includes a crossbar 401 provided inside the ink storage tank 12. Gears 402 are movably provided at both ends of the crossbar 401. A chain 403 is meshed on the gears 402. A stirring blade 404 is connected to the chain link of the chain 403.

[0043] like Figure 6 As shown, specifically, the stirring mechanism 4 also includes a fourth motor 405 mounted on the ink storage tank 12. The output end of the fourth motor 405 drives the gear 402 to rotate, the gear 402 drives the chain 403 to rotate, and the chain 403 drives the stirring blade 404 to stir the ink, ensuring that the ink is fully mixed. At the same time, during the rotation of the rubber coating sheet 203 and the rubber coating strip 205, the ink can also be mixed and stirred. As shown in the figure, the rubber coating sheet 203 and the rubber coating strip 205 stir the ink longitudinally during rotation, and the stirring blade 404 stirs the ink laterally, which greatly improves the stirring effect, makes the ink more uniformly mixed, and avoids printing color differences.

[0044] like Figure 5 As shown, preferably, the main body 1 of the printing press is equipped with a control system, and the control system is equipped with a liquid level warning unit. The lower end of the sliding frame 302 is provided with a liquid level sensor 5, and the liquid level sensor 5 is connected to a warning device. If the ink level in the ink storage tank 12 is lower than the liquid level sensor 5, the warning device will issue a warning under the control of the liquid level warning unit.

[0045] like Figure 5 As shown, it should be noted that the amount of ink should be higher than the level sensor 5 provided at the lower end of the sliding frame 302, so as to ensure that the printing roller 11 can be dipped in the first layer of ink when rotating, and the rubber coating sheet 203 and the rubber coating strip 205 can carry the ink. At the same time, by setting the level sensor 5 and the early warning device, an early warning can be issued when there is no ink, so as to avoid ink shortage.

[0046] like Figure 12 As shown, preferably, in the initial state, the rubber coating sheet 203 and the rubber coating strip 205 are both in contact with the printing roller 11. At this time, the toughness connecting rod 202, the toughness mounting strip 204, and the rubber coating sheet 203 do not deform. The distance between the adjacent rubber coating sheets 203 and the rubber coating strip 205 and the printing roller 11 is L, and the included angle is a. Under the control of the control system, the angular velocity W2 and the dimension R1 of the printing roller 11 are input. The control system outputs the angular velocity W2 of the drive shaft 304 through the processing module, so that the mesh 206 and the rubber coating strip 205 coat the outer surface of the printing roller 11 twice. At the same time, the rubber coating sheet 203 coats the mesh 206 again at the coating junction.

[0047] In actual use, such as Figure 9 As shown, in the initial state, one of the rubber-coated strips 205 contacts the printing roller 11, and the contact point is marked as M1. One of the rubber-coated sheets 203 contacts the printing roller 11 at its end, and the contact point is marked as M4. At this time, the flexible connecting rod 202, the flexible mounting strip 204, and the rubber-coated sheet 203 do not deform. The angle M1O2M4 is π / 3. Driven by the horizontal axis 201, the rotation time from point M1 (when the rubber-coated strip 205 contacts the printing roller 11) to point M4 (when it leaves the printing roller 11) is t. To ensure that the mesh 206 and the rubber-coated strip 205 coat the outer surface of the printing roller 11 twice, and that the rubber-coated sheet 203 coats the mesh 206 again at the coating junction, the printing roller 11 moves from point M4 to point M3 under the drive of the angular velocity W1. It should be noted that points M2 and M3 are the trisection points of arc M1M4. Figure 10 As shown, in Figure 9 Since the length of chord M1M4 is determined by the ends of the rubber-coated sheet 203 and the rubber-coated strip 205, the length of chord M1M4 is a constant L. Therefore, L can be obtained. 2 =2R1 2 -2R1 2 cosa, a=arccos[(2R1) 2 -L 2 ) / 2R1 2 At time t, the printing roller 11 rotates by an arc of arc M4M3 at an angular velocity W1, and thus rotates by an angle of a / 3. Since W2t=π / 3, W1t=a / 3; W2=(W1π) / a, we can conclude that W2=(W1π) / arccos[(2R1 2 -L 2 ) / 2R1 2 The sorted W2 = f(W1, R1) is then used. When printing rollers 11 of different diameters are replaced and the corresponding angular velocity W1 is set, the control system outputs the corresponding angular velocity W2 of the drive shaft 304.

[0048] It should be added that, such as Figure 10As shown, after time t, the area coated with pearlescent particles on the printing roller 11 by the rubber coating strip 205 and the mesh 206 is M1-M5. It should be noted that, for example, the area M1-M5 is simply the area multiplied by the arc length M1M5 and the length of the printing roller 11. Multiplying by the length is omitted here and below. After time t, the area coated by the rubber coating sheet 203 after uniform coating is M2-M6. After time t, the area coated with pearlescent particles on the printing roller 11 by the rubber coating strip 205 and the mesh 206 is M3-M7. Similarly, after time t, the area coated by the rubber coating sheet 203 after uniform coating is M4-M8. The above steps are repeated. Figure 11 As shown, the areas coated with pearlescent particles on the 206 mesh are represented by the straight lines and black lines, corresponding to M1-M5, M3-M7, M5-M9, M7-M11, ..., M... 2n-1 -M 2n+3 The area coated by rubber-coated sheet 203 is M2-M6, M4-M8, M6-M10, ..., M 2n -M 2n+4 As shown in the figure, starting from M3, the printing roller 11 is coated with pearlescent particles on both sides, which greatly ensures the texture of the pearlescent particles. At the same time, the connection points of the mesh 206 and the rubber coating strip 205 during the coating process, such as M3 and M5, are covered by the area of ​​the rubber coating sheet 203, which is M2-M6. This makes the ink at the connection of the mesh 206 and the rubber coating strip 205 more uniform, which greatly improves the effect of printing pearlescent particles on cigarette packs.

[0049] Example 2 This embodiment provides a printing process for cigarette pack inner lining paper, and a printing apparatus for cigarette pack inner lining paper is used for printing, specifically including the following steps: S1: Add 12 parts of aluminum foil varnish, 0.36 parts of yellow paste, 0.14 parts of red paste, 3.75 parts of alcohol, 0.7 parts of liquid water and 0.3 parts of pearlescent particles to ink storage tank 12; Specifically, the stirring mechanism 4 also includes a fourth motor 405 mounted on the ink storage tank 12. The output of the fourth motor 405 drives the gear 402 to rotate, the gear 402 drives the chain 403 to rotate, and the chain 403 drives the stirring blade 404 to stir the ink, ensuring thorough mixing. Simultaneously, the rubber coating sheet 203 and the rubber coating strip 205 also mix and stir the ink during rotation. As shown in the figure, the rubber coating sheet 203 and the rubber coating strip 205 stir the ink longitudinally during rotation, while the stirring blade 404 stirs the ink laterally, ultimately greatly improving the stirring effect and making the ink mixture more uniform, thus avoiding printing color differences. S2: After being stirred evenly, the printing press body 1, together with the coating device 2, prints the ink and pearlescent particles onto the inner lining paper of the cigarette pack.

[0050] S201: The paper is passed through the pressure roller 14 and the printing roller 11. The output end of the first motor 154 is connected to the end of the connecting shaft 151 to drive the connecting shaft 151 to rotate. The connecting shaft 151 drives the printing roller 11 to rotate. At the same time, the control system configures the rotational angular velocity W1 of the connecting shaft 151. The second motor 155 is used to drive the pressure roller 14 to rotate. S202: The output end of the third motor 306 drives the transmission shaft 303 to rotate. The transmission shaft 303 drives the drive shaft 304 to rotate through the transmission components located inside the two sides of the sliding frame 302, which ultimately drives the horizontal shaft 201 to rotate. S203: During the rotation of the printing roller 11, the printing roller 11 first passes through the ink inside the ink reservoir 12. Then, as the printing roller 11 continues to rotate, the drive shaft 304 drives the horizontal shaft 201 to rotate. The horizontal shaft 201 drives the flexible connecting rod 202 to rotate. One set of flexible connecting rods 202 drives the flexible mounting strip 204 to rotate inside the ink. The mesh of the mesh 206 on the flexible mounting strip 204 just carries pearlescent particles. At the same time, as the flexible mounting strip 204 continues to rotate, the mesh 206 just transfers the pearlescent particles to the printing roller 11. Then, it is coated by the rubber coating strip 205. At the same time, the convex dots 216 evenly distributed at the end of the rubber coating strip 205 can remove air bubbles and avoid the formation of... Ink bubbles cause uneven ink coating. Then, another set of flexible connecting rods 202 drives the rubber coating sheet 203 to rotate. At the same time, the ink stored in the concave and curved part of the rubber coating sheet 203 is coated onto the printing roller 11 again, so that the printing roller 11 is coated with another layer of ink. This makes the printing roller 11 have a layer of ink that is initially dipped into the ink storage tank 12, a second layer of ink with pearlescent particles coated by the screen 206, a third layer of ink coated by the rubber coating sheet 203, a fourth layer of ink with pearlescent particles coated by the screen 206, and a fifth layer of ink coated by the rubber coating sheet 203. The three layers of ink sandwiching two layers of pearlescent particles ensure the texture and color of the printing. S204: The printed cigarette pack liner paper is dried, hand-rolled, and collected.

[0051] It should be noted that the inner lining paper of the cigarette packs processed at the very beginning is a defective product. For example, the inner lining paper of the cigarette packs printed in the M1-M3 stage needs to be cut off. In practice, a certain length of cigarette pack inner lining paper, specifically about 1 meter, is cut off and then collected in the roll to obtain the finished product.

[0052] It is worth mentioning that the product obtained by using the ink formula in step S1 has been tested and the color meets the requirements. At the same time, compared with the existing formula, the annual use of matte paste is reduced by 5.5 tons and the use of aluminum foil emulsion is increased by 4.3 tons. Based on an annual output of 188.563 tons, cash expenditure can be directly reduced by approximately RMB 196,000 (RMB 285,600 for reducing the cost of matte ink and RMB 89,800 for purchasing aluminum foil emulsion). When 126 tons of products have been produced, the cash savings amount to RMB 152,000, making this invention more economically efficient.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printing apparatus for cigarette pack inner liner paper, comprising a printing press body (1), wherein the printing press body (1) includes a printing roller (11) and an ink reservoir (12), characterized in that, It also includes a coating device (2) disposed inside the ink storage tank (12). The coating device (2) is used to remove ink bubbles on the printing roller (11). The coating device (2) is adapted to the diameter R1 and angular velocity W1 of the printing roller (11) to uniformly carry particles and uniformly coat the ink containing the particles onto the printing roller (11). It also includes a connecting mechanism (3) for connecting the coating device (2). The connecting mechanism (3) includes an inclined slide rod (301) and a sliding frame (302) with its upper end movably disposed at the lower end of the slide rod (301). The sliding frame (302) is vertically disposed. A transmission shaft (303) is movably disposed at the upper end of the sliding frame (302), and a drive shaft (304) is movably disposed at the lower end of the sliding frame (302). The transmission shaft (303) drives the drive shaft (304) to rotate through transmission components located inside both ends of the sliding frame (302). The coating device (2) includes a horizontal shaft (201) disposed between the drive shafts (304). Six sets of flexible connecting rods (202) are provided on the horizontal shaft (201). The six sets of flexible connecting rods (202) are arranged in a circular array at equal angles around the horizontal shaft (201). Each set of flexible connecting rods (202) has three rods, located at both ends and the middle of the horizontal shaft (201). The flexible connecting rods (202) have a curved structure. Three sets of flexible connecting rods (202) are connected to rubber coating sheets (203). The rubber coating sheets (203) are concave in the middle and curved overall. The other three sets of flexible connecting rods (203) are... 202) has a flexible mounting strip (204) hinged on it. A rubber-coated strip (205) is installed on the upper end of the flexible mounting strip (204). A mesh (206) is provided on the flexible mounting strip (204). The mesh (206) and the rubber-coated sheet (203) are staggered. The longitudinal section of the flexible mounting strip (204) and the rubber-coated strip (205) is the same as the longitudinal section of the rubber-coated sheet (203). The ends of the rubber-coated sheet (203) and the rubber-coated strip (205) are rounded. The ends of the rubber-coated strip (205) are provided with convex dots (216) distributed in an equally spaced array. The other three sets of resilient connecting rods (202) are provided with a first rotating block (207) at their ends, and the lower end of the resilient mounting strip (204) is provided with a second rotating block (208) and a locking block (209). A rotating shaft (210) and a torsion spring (211) are connected between the first rotating block (207) and the second rotating block (208). One side wall of the locking block (209) is in contact with the side wall of the first rotating block (207). The upper outer wall of the flexible mounting strip (204) located at both ends of the horizontal axis (201) is provided with a convex shaft (212), and the side wall of the sliding frame (302) is provided with a right angle strip (213). The convex shaft (212) and the right angle strip (213) are adapted to each other. The lower inner side of the ink storage tank (12) is provided with an arc ring (214). The arc ring (214) is provided with a circumferential array of protrusions (215). The corners of the protrusions (215) are rounded. The convex shaft (212) and the protrusions (215) are adapted to each other.

2. The printing apparatus for inner lining paper of cigarette packs according to claim 1, characterized in that, The main body (1) of the printing press also includes a frame (13) and a pressure roller (14). The frame (13) is provided with a drive mechanism (15), which is used to drive the printing roller (11) to rotate. The inner lining paper for the cigarette pack passes between the printing roller (11) and the pressure roller (14). The drive mechanism (15) includes a connecting shaft (151) movably mounted on the frame (13). The end of the connecting shaft (151) is provided with a mounting groove shell (152). The printing roller (11) has mounting blocks (153) connected to the central shaft at both ends. The mounting blocks (153) are located inside the mounting groove shell (152) and are connected to the mounting groove shell (152) by bolts.

3. The printing apparatus for inner lining paper of cigarette packs according to claim 2, characterized in that, The frame (13) is provided with a connecting mechanism (3).

4. The printing apparatus for inner lining paper of cigarette packs according to claim 3, characterized in that, The line connecting the center point of the horizontal axis (201) and the center point of the printing roller (11) is parallel to the inclined slide rod (301). The slide rod (301) is provided with a first electric telescopic rod (305), and the lower output end of the first electric telescopic rod (305) is connected to the upper end of the sliding frame (302).

5. The printing apparatus for inner lining paper of cigarette packs according to claim 4, characterized in that, The main body (1) of the printing press also includes a doctor blade mechanism (16), which includes a second electric telescopic rod (161) embedded in the ink reservoir (12), a horizontal bar (162) installed at the output end of the second electric telescopic rod (161), and a blade holder (163) movably mounted on the horizontal bar (162). The blade holder (163) is provided with a detachable doctor blade (164). A reciprocating assembly (165) is connected between the middle of the horizontal bar (162) and the middle of the blade holder (163). The reciprocating assembly (165) drives the blade holder (163) and the doctor blade (164) to move laterally and reciprocally. The ends of the rubber coated sheet (203) and the rubber coated strip (205) are adapted to the lower surface of the doctor blade (164).

6. The printing apparatus for inner lining paper of cigarette packs according to claim 5, characterized in that, The ink storage tank (12) is also provided with a stirring mechanism (4). The stirring mechanism (4) and the coating device (2) are symmetrically distributed about the central axis of the printing roller (11). The stirring mechanism (4) includes a crossbar (401) provided inside the ink storage tank (12). Gears (402) are movably provided at both ends of the crossbar (401). A chain (403) is meshed on the gear (402). A stirring blade (404) is connected to the chain link of the chain (403).

7. The printing apparatus for inner lining paper of cigarette packs according to claim 6, characterized in that, The main body (1) of the printing press is equipped with a control system, and the control system is equipped with a liquid level warning unit. The lower end of the sliding frame (302) is provided with a liquid level sensor (5), and the liquid level sensor (5) is connected to a warning device. If the ink level in the ink storage tank (12) is lower than the liquid level sensor (5), the warning device will issue a warning under the control of the liquid level warning unit.

8. The printing apparatus for inner lining paper of cigarette packs according to claim 7, characterized in that, In the initial state, the rubber coating sheet (203) and the rubber coating strip (205) are in contact with the printing roller (11). At this time, the toughness connecting rod (202), the toughness mounting strip (204) and the rubber coating sheet (203) do not deform. The distance between the adjacent rubber coating sheets (203) and the rubber coating strip (205) and the printing roller (11) is L and the included angle is a. Under the control of the control system, the angular velocity W1 and the dimension R1 of the printing roller (11) are input. The control system outputs the angular velocity W2 of the drive shaft (304) through the processing module, so that the mesh (206) and the rubber coating strip (205) coat the outer surface of the printing roller (11) twice. At the same time, the rubber coating sheet (203) coats the mesh (206) again at the coating junction.

9. A printing process for inner lining paper of cigarette packs, characterized in that, Printing using a cigarette pack inner liner paper printing apparatus according to any one of claims 1-8 specifically includes the following steps: S1: Add 12 parts of aluminum foil varnish, 0.36 parts of yellow paste, 0.14 parts of red paste, 3.75 parts of alcohol, 0.7 parts of liquid water and 0.3 parts of pearlescent particles to the ink storage tank (12); S2: After being stirred evenly, the main body of the printing press, together with the coating device (2), prints the ink and pearlescent particles onto the inner lining paper of the cigarette pack.

Images