Laser marking device and method for anti-counterfeiting of cigarette packaging

Abstract

The present invention discloses a laser marking device for anti-counterfeiting of cigarette box packaging, comprising a laser marking device, an automatic loading and unloading device and a supporting device, wherein the automatic loading and unloading device comprises a guide assembly, a push assembly is fixedly connected to a side surface of the bottom end of the guide assembly, a pneumatic assembly is fixedly connected between the guide assembly and the push assembly, and an angle leveling assembly facing the laser marking device body is installed on one end of the pneumatic assembly away from the push assembly. The present invention can realize automatic correction of the posture of the cigarette box to be marked, as well as automatic loading and unloading before and after marking, without the need for a clamping device, by means of the guide assembly, the push assembly and the angle leveling assembly, so there is no problem of excessive clamping force due to operational errors, which leads to damage and deformation of the cigarette box. The overall operation is simple, easy to use, and can save a lot of time, thereby significantly improving the efficiency of laser marking for anti-counterfeiting of cigarette box packaging.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, and in particular to a laser marking device and method for anti-counterfeiting of cigarette packaging. Background Art

[0002] Laser marking is a marking method that uses high-energy-density lasers to partially irradiate workpieces, causing the surface material to vaporize or undergo a chemical reaction that changes color, thereby leaving a permanent mark. Laser marking can produce a variety of text, symbols, and patterns, and the character size can range from millimeters to micrometers, which is of special significance for product anti-counterfeiting. Therefore, it has been widely used in the anti-counterfeiting of cigarette packaging.

[0003] When using the existing laser marking equipment for anti-counterfeiting of cigarette box packaging, a worker is required to manually pick up the cigarette box transmitted by the conveyor belt, and then use a clamping device to clamp and fix the cigarette box directly under the laser marking equipment. After marking, the worker is required to manually release the limit fixation of the cigarette box, and then take out the marked cigarette box. Therefore, there are disadvantages of cumbersome operation process and low processing efficiency. In addition, most cigarette boxes are made of paper. In the process of clamping and fixing the cigarette box with the clamping device, it is easy to cause the cigarette box to be damaged or deformed due to excessive clamping force due to operational errors. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: when the existing laser marking equipment for anti-counterfeiting of cigarette box packaging is in use, the staff needs to manually take the cigarette box transmitted by the conveyor belt, and then use the clamping device to clamp and fix the cigarette box just below the laser marking equipment. After the marking is completed, it is necessary to manually release the limit fixation of the cigarette box, and then take out the marked cigarette box. Therefore, there are the shortcomings of cumbersome operation process and low processing efficiency. In addition, most cigarette boxes are made of paper. In the process of clamping and fixing the cigarette box with the clamping device, it is easy to cause the cigarette box to be damaged and deformed due to excessive clamping force due to operational errors.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A laser marking device for anti-counterfeiting of cigarette packaging, comprising a laser marking device, an automatic loading and unloading device and a supporting device, wherein the automatic loading and unloading device comprises a guide assembly, a push assembly is fixedly connected to a surface on one side of the bottom end of the guide assembly, a pneumatic assembly is fixedly connected between the guide assembly and the push assembly, an angle leveling assembly facing the laser marking device body is installed on the end of the pneumatic assembly away from the push assembly, the movable base and the angle leveling assembly are installed and connected together, an acceleration assembly is fixedly connected between the inner surface of the end of the guide assembly away from the push assembly, and a deceleration switch is installed on the surface of the side of the guide assembly away from the acceleration assembly;

[0007] The guide assembly includes a guide groove, a discharge port is opened on a side wall of the guide groove close to the angle leveling assembly, the pushing assembly includes an electric push rod, a piston plate is fixedly connected to the output end of the electric push rod, a magnetic plate is slidably connected to the inner surface of the bottom end of the guide groove, a push plate is fixedly connected to the magnetic plate and slidably connected to the inner surface of the guide groove, the piston plate and the magnetic plate are attracted to each other by magnetic force, the angle leveling assembly includes a mounting frame, the mounting frame is fixedly connected to the side surface of the pneumatic assembly away from the pushing assembly, an adjusting shaft is rotatably connected to the mounting frame, a second driving motor is installed on one end of the adjusting shaft, and a storage table is fixedly connected to the other end of the adjusting shaft.

[0008] Preferably, the pneumatic assembly includes a cylinder, which is fixedly connected to a side surface of the guide groove close to the electric push rod, and an empty slot is opened in the cylinder. The output end of the electric push rod extends into the empty slot and is sealed and slidably connected to the cylinder, and the piston plate is sealed and slidably connected in the empty slot. Two first air holes are symmetrically opened on one side surface of the cylinder, and a first one-way valve is installed in each of the two first air holes. Two second air holes are symmetrically opened on a side surface of the cylinder away from the first air holes, and a second one-way valve is installed in each of the two second air holes. An air supply pipe connected to the two first air holes is installed on the cylinder, and an air exhaust pipe connected to the two second air holes is installed on the cylinder. A first air pipe is installed on the air supply pipe, and a second air pipe is installed on the second air hole.

[0009] Preferably, an air suction hole is provided on an inner surface of the storage platform facing the guide groove, and a switching tube connected to the air suction hole is fixedly connected to the storage platform, and the switching tube can be connected to the second air pipe through a connecting hose.

[0010] Preferably, the acceleration assembly includes a mounting tube, which is fixedly connected between the inner surfaces of the guide groove away from one end of the electric push rod, a connecting portion is fixedly connected to the mounting tube, a blowing port facing the guide groove is installed on the mounting tube, one end of the first air pipe is fixedly connected to the connecting portion, and a baffle is installed on the guide groove.

[0011] Preferably, the slow-speed switch includes a mounting block, a plurality of mounting holes are formed on a side surface of the guide groove facing away from the mounting cylinder, the mounting block is fixedly connected to the guide groove at a position opposite to the mounting hole, a mounting rod is fixedly connected to a side surface of the mounting block, a slider is slidably connected to the mounting block, a side surface of the mounting rod close to the slider and a side surface of the slider close to the mounting rod are both installed with power poles, a limiting spring is fixedly connected between the mounting rod and the slider, a connecting pipe is fixedly connected to the outer surface of the mounting block, a shunt pipe is fixedly connected to an end of the second air pipe close to the mounting block, the shunt pipe and the plurality of connecting pipes are connected one by one through a plurality of shunt valves, an electromagnetic valve is provided in the end of the second air pipe connected to the shunt pipe, a plurality of the slow-speed switches are connected in parallel with the electromagnetic valve, and the slow-speed switch is used to control the switching of the electromagnetic valve.

[0012] Preferably, the laser marking device includes a laser marking equipment body, a movable base and a distance adjusting component, the distance adjusting component is installed between the laser marking equipment body and the movable base, the movable base includes a telescopic tube, a telescopic rod is slidably connected in the telescopic tube, a bottom plate is fixedly connected to the bottom end of the telescopic rod, a mounting sleeve is fixedly connected to the telescopic tube, the second drive motor is installed and fixed in the mounting sleeve, the distance adjusting component includes two mounting plates symmetrically fixedly connected to the outer surface of the laser marking equipment body, one of the mounting plates is fixedly connected to the first drive motor, a threaded rod rotatably connected to the two mounting plates is fixedly connected to the output end of the first drive motor, a threaded hole is opened on the mounting sleeve, and the threaded rod is threadedly connected to the threaded hole on the mounting sleeve.

[0013] Preferably, the supporting device includes a supporting seat, an angle adjustment device is installed between the supporting seat and the guide assembly, the supporting seat includes a supporting frame, a limiting block is fixedly connected to the supporting frame, two inner racks are symmetrically fixedly connected to one side surface of the guide groove, a reinforcement rod is fixedly connected between one end of the two inner racks and the guide groove, the inner racks are slidably connected in the limiting block, the angle adjustment device includes two side plates fixedly connected to the supporting frame, a third drive motor is installed on one of the side plates, the output end of the third drive motor is rotatably connected to the two side plates, an adjusting gear is fixedly connected to the output end of the third drive motor, and the adjusting gear is meshingly connected to the inner rack.

[0014] A laser marking method of a laser marking device for anti-counterfeiting of cigarette packaging, comprising the following steps:

[0015] S1. Align the top of the guide groove with the conveyor belt for transporting cigarette boxes. The conveyor belt continuously delivers the cigarette boxes to be marked to the guide assembly. The cigarette boxes sent into the guide assembly by the conveyor belt slide down along the surface of the guide groove to the inner wall of the bottom of the guide groove under the action of their own gravity. During the sliding process, the posture of the cigarette boxes is automatically corrected by the kinetic energy and gravity of the cigarette boxes, so that the two surfaces of the outer surface of the cigarette box that are in contact with the guide groove are in contact with the two inner surfaces of the guide groove;

[0016] S2. Next, the output end of the electric push rod drives the piston plate to move toward the discharge port through the extension of the push assembly. During this process, the piston plate drives the magnetic plate to move toward the discharge port together with the piston plate by virtue of the magnetic force between the piston plate and the magnetic plate. The magnetic plate pushes the cigarette box through the discharge port through the push plate and enters the angle leveling assembly. Then the electric push rod begins to shorten, driving the piston plate, the magnetic plate and the push plate to move away from the discharge port and automatically reset. Then the conveyor belt delivers the next cigarette box into the guide assembly. The push assembly repeats the above process, thereby continuously delivering the cigarette boxes entering the guide assembly into the angle leveling assembly.

[0017] S3, after the pushing component sends the cigarette box into the storage table, the second drive motor is started, and the output end of the second drive motor drives the storage table and the cigarette box therein to rotate forward around the adjustment shaft through the adjustment shaft until the upper surface of the cigarette box is adjusted to be horizontal and flush with the working end of the laser marking device body, and then the laser marking device body works to laser mark the cigarette box on the storage table. After the marking is completed, the second drive motor is started to first drive the storage table to continue to rotate forward. As the storage table rotates, the cigarette box automatically slides off the storage table under its own gravity to complete the unloading. After that, the second drive motor reverses to drive the storage table to reverse until the storage table returns to its initial state and is aligned with the discharge port;

[0018] S4. During the reciprocating extension and retraction process of the pushing assembly, the output end of the electric push rod drives the piston plate to move back and forth along the empty slot in the cylinder. When the piston plate moves to the right, the first one-way valve in the empty slot on the left is cut off and the second one-way valve is turned on, the first one-way valve in the empty slot on the right is turned on and the second one-way valve is cut off, the empty slot on the left draws air through the second one-way valve, the exhaust pipe and the second air pipe, while the empty slot on the right delivers air through the first one-way valve, the air delivery pipe and the first air pipe. When the guide slot moves to the left, the first one-way valve in the empty slot on the left is turned on and the second one-way valve is cut off, the first one-way valve in the empty slot on the right is turned on and the second one-way valve is turned on, the empty slot on the right draws air through the second one-way valve, the exhaust pipe and the second air pipe, while the empty slot on the left delivers air through the first one-way valve, the air delivery pipe and the first air pipe. A one-way valve, an air supply pipe and a first air pipe send out air, and with the help of the reciprocating expansion and contraction process of the pushing assembly, positive pressure is continuously supplied in the first air pipe, and negative pressure is generated in the second air pipe. A connecting hose is used to connect the adapter pipe and the second air pipe. With the help of partial negative pressure in the second air pipe and the suction hole, a suction cup-like effect is generated to adsorb the cigarette box entering the angle leveling assembly, thereby enhancing the stability of the cigarette box when placed in the angle leveling assembly. The first air pipe sends the air in the empty groove into the mounting tube and sprays it out under the action of the pressure difference, thereby accelerating the cigarette box sliding down the guide groove and shortening the time required to slide to the bottom. At the same time, with the help of wind force, the surface of the cigarette box can be dusted, and dust is not easy to fall and accumulate on the inner surface of the guide groove.

[0019] The beneficial effects of the present invention are: the automatic correction of the posture of the cigarette box to be marked and the automatic loading and unloading before and after marking can be achieved by means of the guide assembly, the material pushing assembly and the angle leveling assembly without the need for a clamping device, so there is no problem of excessive clamping force causing damage and deformation of the cigarette box due to operational errors, the overall operation is simple, the use is convenient, a lot of time can be saved, and the efficiency of laser marking on anti-counterfeiting of cigarette box packaging can be significantly improved;

[0020] By utilizing the positive and negative pressure generated in the air pressure component during the reciprocating extension and contraction of the pushing component, the cigarette box is accelerated at the beginning of its slide and decelerated when it is about to slide to the bottom. This protects the cigarette box while shortening the sliding time. The negative pressure can also be used to enhance the stability of the cigarette box on the angle leveling component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the back structure of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0023] Figure 3 This is a schematic structural diagram of a guide assembly of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0024] Figure 4 A partial structural cross-sectional view of an air pressure component of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a push plate of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the air pressure component of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0027] Figure 7 This is a front structural schematic diagram of an angle leveling component of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the back structure of an angle leveling component of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of a mounting tube of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0030] Fig.10 This is a schematic diagram of the structure of a slow-speed switch of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention;

[0031] Fig.11 A schematic diagram of the structure of a laser marking device for anti-counterfeiting laser marking equipment for cigarette packaging proposed by the present invention;

[0032] Fig.12 This is a schematic structural diagram of a supporting device of a laser marking device for anti-counterfeiting of cigarette packaging proposed by the present invention.

[0033] In the figure: 1 laser marking device, 11 laser marking equipment body, 12 movable base, 121 telescopic tube, 122 telescopic rod, 123 bottom plate, 124 mounting sleeve, 13 distance adjustment component, 131 mounting plate, 132 first drive motor, 133 threaded rod, 2 automatic loading and unloading device, 21 guide component, 211 guide groove, 212 discharge port, 213 baffle, 214 mounting hole, 215 inner rack, 216 reinforcement rod, 22 push component, 221 electric push rod, 222 piston plate, 223 magnetic plate, 224 push plate, 23 pneumatic component, 231 cylinder, 2311 empty slot, 232 air supply pipe, 233 exhaust pipe, 234 first air hole , 235 second air hole, 236 first air pipe, 237 second air pipe, 238 shunt pipe, 239 shunt valve, 24 angle leveling assembly, 241 mounting frame, 242 adjusting shaft, 243 second drive motor, 244 storage table, 245 suction hole, 246 transfer tube, 25 acceleration assembly, 251 mounting cylinder, 252 connecting part, 253 air outlet, 26 slow speed switch, 261 mounting block, 262 mounting rod, 263 slider, 264 power column, 265 connecting pipe, 3 supporting device, 31 supporting seat, 311 supporting frame, 312 limiting block, 32 angle adjustment device, 321 side plate, 322 third drive motor, 323 adjusting gear. DETAILED DESCRIPTION

[0034] See also Figure 1-Figure 12 , a laser marking device for anti-counterfeiting of cigarette packaging, comprising a laser marking device 1, the laser marking device 1 comprising a laser marking device body 11, a movable base 12 and a distance adjusting component 13, the distance adjusting component 13 is installed between the laser marking device body 11 and the movable base 12, the automatic loading and unloading device 2 comprises a guide component 21, a push component 22 is fixedly connected to a surface on one side of the bottom end of the guide component 21, a pneumatic component 23 is fixedly connected between the guide component 21 and the push component 22, an angle leveling component 24 facing the laser marking device body 11 is installed on the end of the pneumatic component 23 away from the push component 22, the movable base 12 and the angle leveling component 24 are installed and connected together, an acceleration component 25 is fixedly connected between the inner side surface of the end of the guide component 21 away from the push component 22, and a deceleration switch 26 is installed on the surface of the side of the guide component 21 away from the acceleration component 25, the supporting device 3 comprises a supporting seat 31, and an angle adjusting device 32 is installed between the supporting seat 31 and the guide component 21;

[0035] The guide assembly 21 includes a guide groove 211, and a discharge port 212 is opened on a side wall of the guide groove 211 close to the angle leveling assembly 24. The pushing assembly 22 includes an electric push rod 221, and a piston plate 222 is fixedly connected to the output end of the electric push rod 221. A magnetic plate 223 is slidably connected to the inner surface of the bottom end of the guide groove 211, and a push plate 224 slidably connected to the inner surface of the guide groove 211 is fixedly connected to the magnetic plate 223. The piston plate 222 and the magnetic plate 223 attract each other through magnetic force. The angle leveling assembly 24 includes a mounting frame 241, and the mounting frame 241 is fixedly connected to a side surface of the pneumatic assembly 23 away from the pushing assembly 22. An adjusting shaft 242 is rotatably connected to the mounting frame 241, and a second driving motor 243 is installed on one end of the adjusting shaft 242. A storage table 244 is fixedly connected to the other end of the adjusting shaft 242, and the second driving motor 243 is fixedly connected to the movable base 12.

[0036] When using the existing laser marking equipment for anti-counterfeiting of cigarette box packaging, a worker is required to manually pick up the cigarette box transmitted by the conveyor belt, and then use a clamping device to clamp and fix the cigarette box directly under the laser marking equipment. After marking, the worker is required to manually release the limit fixation of the cigarette box, and then take out the marked cigarette box. Therefore, there are disadvantages of cumbersome operation process and low processing efficiency. In addition, most cigarette boxes are made of paper. In the process of clamping and fixing the cigarette box with the clamping device, it is easy to cause the cigarette box to be damaged or deformed due to excessive clamping force due to operational errors. In order to solve this problem, the present invention is provided with an automatic loading and unloading device 2, which aligns the top of the guide groove 211 with the conveyor belt for transmitting cigarette boxes, and the conveyor belt continuously sends the cigarette boxes to be marked to the guide assembly 21. The cigarette boxes sent into the guide assembly 21 by the conveyor belt slide down along the surface of the guide groove 211 to the inner wall of the bottom of the guide groove 211 under the action of their own gravity. During the sliding process, the kinetic energy and gravity of the cigarette box can be used to make the cigarette box contact with the inner wall of the bottom of the guide groove 211, and its posture will be automatically corrected, so that the two surfaces of the outer surface of the cigarette box that contact the guide groove 211 will fit with the two inner surfaces of the guide groove 211.

[0037] Next, with the help of the pusher assembly 22 that cyclically extends and shortens with a fixed working cycle, the output end of the electric push rod 221 drives the piston plate 222 to move toward the discharge port 212 by utilizing its extension process. During this process, the piston plate 222 drives 223 to move together with it toward the discharge port 212 by virtue of the magnetic force between the piston plate 222 and 223. 223 pushes the cigarette box through the discharge port 212 through 224 and enters the angle leveling assembly 24. Then the electric push rod 221 begins to shorten, driving the piston plates 222, 223 and 224 to move away from the discharge port 212 and automatically reset. Then the conveyor belt delivers the next cigarette box into the guide assembly 21, and the pusher assembly 22 repeats the above process, thereby continuously delivering the cigarette boxes that have entered the guide assembly 21 into the angle leveling assembly 24.

[0038] In the process of extending the pushing assembly 22 to send the cigarette box from the discharge port 212 into the angle leveling assembly 24, the inner surface of the storage table 244 is aligned with the two inner surfaces of the guide groove 211 and the surface of the cigarette box. At the same time, because the storage table 244 and the cigarette box are both in an inclined state, under the effect of the gravity of the cigarette box itself, after the pushing assembly 22 sends the cigarette box into the storage table 244, three of the outer surfaces of the cigarette box will fit together with the three inner surfaces of the storage table 244, further realizing the automatic correction of the cigarette box. Subsequently, the second drive motor 243 is started, and the output end of the second drive motor 243 drives the adjusting shaft 242 to move the cigarette box to the storage table 244. The movable storage table 244 and the cigarette box inside it rotate forward around the adjustment shaft 242 until the upper surface of the cigarette box is adjusted to be horizontal and flush with the working end of the laser marking device body 11, and then the laser marking device body 11 works to laser mark the cigarette box located in the storage table 244. After the marking is completed, the second drive motor 243 is started to first drive the storage table 244 to continue to rotate forward. As the storage table 244 rotates, the cigarette box automatically slides off the storage table 244 under its own gravity to complete the unloading. After that, the second drive motor 243 reverses and drives the storage table 244 to reverse until the storage table 244 returns to its initial state and is aligned with the discharge port 212.

[0039] In the above process, the telescopic working cycle of the pushing assembly 22, the forward and reverse angles of the second drive motor 243, and the working cycle can all be preset in advance. Therefore, the present invention can, with the help of the guide assembly 21, the pushing assembly 22 and the angle leveling assembly 24, realize automatic correction of the posture of the cigarette box to be marked, as well as automatic loading and unloading before and after marking without the need for a clamping device. Therefore, there is no problem of excessive clamping force causing damage and deformation of the cigarette box due to operational errors. The overall operation is simple and easy to use, which can save a lot of time, thereby significantly improving the laser marking efficiency of anti-counterfeiting of cigarette box packaging.

[0040] like Figure 4 and Figure 6As shown, the pneumatic assembly 23 includes a cylinder 231, which is fixedly connected to a side surface of the guide groove 211 close to the electric push rod 221, and a hollow groove 2311 is opened in the cylinder 231. The output end of the electric push rod 221 extends into the hollow groove 2311 and is sealed and slidably connected to the cylinder 231. The piston plate 222 is sealed and slidably connected in the hollow groove 2311. Two first air holes 234 are symmetrically opened on one side surface of the cylinder 231, and both first air holes 234 have A first one-way valve is installed, and two second air holes 235 are symmetrically opened on the side surface of the cylinder 231 away from the first air hole 234. A second one-way valve is installed in each of the two second air holes 235. An air supply pipe 232 connected with the two first air holes 234 is installed on the cylinder 231, and an air exhaust pipe 233 connected with the two second air holes 235 is installed on the cylinder 231. A first air pipe 236 is installed on the air supply pipe 232, and a second air pipe 237 is installed on the second air hole 235.

[0041] During the reciprocating extension and retraction process of the push assembly 22, the output end of the electric push rod 221 will drive the piston plate 222 to move back and forth along the empty slot 2311 in the cylinder 231, and is restricted by the one-way conduction of the two first one-way valves in the two first air holes 234 and the two second one-way valves in the two second air holes 235. For the first one-way valve, the air in the empty slot 2311 enters the air supply pipe 232 for conduction, and is blocked in the reverse direction. For the second one-way valve, the air in the empty slot 2311 enters the air extraction pipe 233 for blockage, and is connected in the reverse direction. Therefore, when the output end of the electric push rod 221 is extended, refer to Figure 4 When the piston plate 222 moves to the right, the first one-way valve in the left empty slot 2311 is closed and the second one-way valve is turned on, the first one-way valve in the right empty slot 2311 is turned on and the second one-way valve is closed, the left empty slot 2311 sucks air through the second one-way valve, the air extraction pipe 233 and the second air pipe 237, and the right empty slot 2311 sends air out through the first one-way valve, the air delivery pipe 232 and the first air pipe 236. When the guide slot 211 moves to the left, the air in the left empty slot 2311 is turned on and the second one-way valve is turned off. The first one-way valve is turned on and the second one-way valve is turned off. The first one-way valve in the right empty slot 2311 is turned off and the second one-way valve is turned on. The right empty slot 2311 draws air through the second one-way valve, the exhaust pipe 233 and the second air pipe 237, while the left empty slot 2311 sends out air through the first one-way valve, the air supply pipe 232 and the first air pipe 236. With the help of the reciprocating extension and contraction process of the pushing assembly 22, positive pressure is continuously supplied in the first air pipe 236 and negative pressure is generated in the second air pipe 237.

[0042] like Figure 7 and Figure 8As shown, an air suction hole 245 is provided on an inner surface of the storage platform 244 facing the guide groove 211, and a switching tube 246 connected to the air suction hole 245 is fixedly connected to the storage platform 244. The switching tube 246 can be connected to the second air pipe 237 through a connecting hose.

[0043] A connecting hose is used to connect the adapter tube 246 and the second air pipe 237. With the help of partial negative pressure in the second air pipe 237 and the suction hole 245, a suction cup-like effect is produced to absorb the cigarette box into the angle leveling component 24, thereby enhancing the stability of the cigarette box when placed in the angle leveling component 24. The suction effect will not be very large, and there is no situation where the cigarette box cannot be automatically unloaded under the action of gravity.

[0044] like Fig. 9 As shown, the acceleration assembly 25 includes a mounting cylinder 251, which is fixedly connected between the inner surfaces of the guide groove 211 away from one end of the electric push rod 221, and a connecting portion 252 is fixedly connected to the mounting cylinder 251. A blowing port 253 facing the guide groove 211 is installed on the mounting cylinder 251, one end of the first air pipe 236 is fixedly connected to the connecting portion 252, and a baffle 213 is installed on the guide groove 211.

[0045] Since the connecting portion 252 is connected to the first air pipe 236, the first air pipe 236 will send the air in the empty groove 2311 into the mounting tube 251 and spray it out under the action of the pressure difference, thereby accelerating the cigarette box sliding down the guide groove 211 and shortening the time required to slide to the bottom. At the same time, it can also use the action of wind to remove dust from the surface of the cigarette box and make it difficult for dust to fall and accumulate on the inner surface of the guide groove 211.

[0046] like Fig.10 As shown, the slow-speed switch 26 includes a mounting block 261, a plurality of mounting holes 214 are formed on the surface of the guide groove 211 facing away from the mounting tube 251, the mounting block 261 is fixedly connected to the guide groove 211 at a position directly opposite to the mounting holes 214, a mounting rod 262 is fixedly connected to one side surface of the mounting block 261, a slider 263 is slidably connected inside the mounting block 261, and a power connection post 264 is installed on one side surface of the mounting rod 262 close to the slider 263 and one side surface of the slider 263 close to the mounting rod 262. A limit spring is fixedly connected between the mounting rod 262 and the slider 263, a connecting pipe 265 is fixedly connected to the outer surface of the mounting block 261, a shunt pipe 238 is fixedly connected to one end of the second air pipe 237 close to the mounting block 261, the shunt pipe 238 and multiple connecting pipes 265 are connected one by one through multiple shunt valves 239, a solenoid valve is provided in the end of the second air pipe 237 connected to the shunt pipe 238, and multiple slow-speed switches 26 are all connected in parallel with the solenoid valve, and the slow-speed switch 26 is used to control the switch of the solenoid valve.

[0047] With the help of the second air pipe 237, the shunt pipe 238, the shunt valve 239 and the connecting pipe 265, the negative pressure generated in the empty groove 2311 is evenly distributed and supplied to the multiple mounting blocks 261. Because the side of the mounting block 261 close to the mounting hole 214 is not blocked, the negative pressure effect will be directly consumed and will not have a significant impact on the slider 263. Then, when a cigarette box slides down along the guide groove 211, the cigarette box will inevitably block a certain mounting hole 214 during the sliding process. When the cigarette box completely blocks a certain mounting hole 214, the suction effect of the negative pressure on the cigarette box is increased to increase the friction between the cigarette box and the inner surface of the guide groove 211, and the sliding speed of the cigarette box is slowed down at a position close to the bottom of the guide groove 211 to prevent the cigarette box from sliding too fast and causing damage to the edge. At the same time, due to the obstruction of the cigarette box, the negative pressure in the mounting block 261 has nowhere to be dissipated from the mounting hole 214. 14 is released, so under the action of negative pressure, the slider 263 overcomes the gravity and the elastic force of the limit spring and moves away from the mounting rod 262, so that the slider 263 and the electric post 264 on the mounting rod 262 are in contact, and the slow-speed switch 26 is closed. Since multiple slow-speed switches 26 are connected in parallel with the solenoid valve in the second air pipe 237, when any slow-speed switch 26 is closed, the solenoid valve will be closed and switched from the on state to the off state, and the supply of negative pressure to the mounting block 261 will be stopped. Since it is not completely closed, the negative pressure in the mounting block 261 will disappear quickly after the supply is lost, and then the cigarette box will slide down to the bottom of the guide groove 211 at an appropriate speed under the action of gravity. After the negative pressure in the mounting block 261 disappears, the slider 263 will automatically reset under the action of gravity and the elastic force of the limit spring, the contact between the electric post 264 will be disconnected, and the solenoid valve will be turned on again.

[0048] like Fig.11 As shown, the movable base 12 includes a telescopic tube 121, a telescopic rod 122 is slidably connected inside the telescopic tube 121, a bottom plate 123 is fixedly connected to the bottom end of the telescopic rod 122, a mounting sleeve 124 is fixedly connected to the telescopic tube 121, and the second drive motor 243 is installed and fixed in the mounting sleeve 124. The distance adjustment component 13 includes two mounting plates 131 symmetrically fixedly connected to the outer surface of the laser marking equipment body 11, one of the mounting plates 131 is fixedly connected to the first drive motor 132, and a threaded rod 133 rotatably connected to the two mounting plates 131 is fixedly connected to the output end of the first drive motor 132, and a threaded hole is opened on the mounting sleeve 124, and the threaded rod 133 is threadedly connected to the threaded hole on the mounting sleeve 124.

[0049] The first driving motor 132 can drive the threaded rod 133 to rotate, thereby adjusting the position of the laser marking device body 11, so as to fine-tune the position of the laser marking device body 11 according to different processing requirements.

[0050] like Fig.12As shown, the support seat 31 includes a support frame 311, and a limit block 312 is fixedly connected to the support frame 311. Two inner racks 215 are symmetrically fixedly connected to the surface of one side of the guide groove 211, and a reinforcement rod 216 is fixedly connected between one end of the two inner racks 215 and the guide groove 211. The inner racks 215 are slidably connected in the limit block 312. The angle adjustment device 32 includes two side plates 321 fixedly connected to the support frame 311, and a third drive motor 322 is installed on one of the side plates 321. The output end of the third drive motor 322 is rotatably connected to the two side plates 321, and an adjusting gear 323 is fixedly connected to the output end of the third drive motor 322, and the adjusting gear 323 is meshingly connected to the inner rack 215.

[0051] When the cigarette box slides down the guide groove 211, the sliding speed will be affected by the inclination angle of the guide groove 211. Therefore, when it is necessary to control the sliding speed of the cigarette box by adjusting the inclination angle of the guide groove 211, the third drive motor 322 can be started, and the output end of the third drive motor 322 drives the adjusting gear 323 to rotate. The adjusting gear 323 is engaged with the inner rack 215, and cooperates with the limiting effect of the limit block 312 on the inner rack 215, so that the adjusting gear 323 can drive the guide groove 211 to rotate through the inner rack 215, thereby adjusting the inclination angle and the sliding speed. The setting of the mounting sleeve 124 can ensure that no matter how the inclination angle of the guide groove 211 is adjusted, the laser marking equipment body 11 will be above the angle leveling component 24.

[0052] A laser marking method of a laser marking device for anti-counterfeiting of cigarette packaging, comprising the following steps:

[0053] S1, aligning the top of the guide groove 211 with the conveyor belt for transporting cigarette boxes, and the conveyor belt continuously sends the cigarette boxes to be marked to the guide assembly 21. The cigarette boxes sent into the guide assembly 21 by the conveyor belt slide down along the surface of the guide groove 211 and lean against the inner wall of the bottom of the guide groove 211 under the action of their own gravity. During the sliding process, the posture of the cigarette box is automatically corrected by the kinetic energy and gravity of the cigarette box, so that the two surfaces of the outer surface of the cigarette box that contact the guide groove 211 will fit with the two inner surfaces of the guide groove 211;

[0054] S2. Next, through the extension of the pushing assembly 22, the output end of the electric push rod 221 drives the piston plate 222 to move toward the discharge port 212. During this process, the piston plate 222 drives the magnetic plate 223 to move toward the discharge port 212 together with the piston plate 222 by means of the magnetic force between the piston plate 222 and the magnetic plate 223. The magnetic plate 223 pushes the cigarette box through the discharge port 212 through the push plate 224 and enters the angle leveling assembly 24. Then, the electric push rod 221 begins to shorten, driving the piston plate 222, the magnetic plate 223 and the push plate 224 to move away from the discharge port 212 and automatically reset. Then, the conveyor belt delivers the next cigarette box into the guide assembly 21, and the pushing assembly 22 repeats the above process, thereby continuously delivering the cigarette boxes entering the guide assembly 21 into the angle leveling assembly 24.

[0055] S3, after the pushing component 22 sends the cigarette box into the storage table 244, the second driving motor 243 is started, and the output end of the second driving motor 243 drives the storage table 244 and the cigarette box therein to rotate forward around the adjusting shaft 242 through the adjusting shaft 242 until the upper surface of the cigarette box is adjusted to be horizontal and flush with the working end of the laser marking device body 11, and then the laser marking device body 11 works to laser mark the cigarette box located on the storage table 244. After the marking is completed, the second driving motor 243 is started, first driving the storage table 244 to continue to rotate forward. As the storage table 244 rotates, the cigarette box automatically slides off the storage table 244 under the action of its own gravity, and the unloading is completed. After that, the second driving motor 243 is reversed, driving the storage table 244 to reverse, until the storage table 244 returns to its initial state and is aligned with the discharge port 212;

[0056] S4. During the reciprocating extension and retraction process of the push assembly 22, the output end of the electric push rod 221 drives the piston plate 222 to reciprocate back and forth along the empty slot 2311 in the cylinder 231. When the piston plate 222 moves to the right, the first one-way valve in the empty slot 2311 on the left is cut off and the second one-way valve is turned on, the first one-way valve in the empty slot 2311 on the right is turned on and the second one-way valve is cut off, the empty slot 2311 on the left draws air through the second one-way valve, the air extraction pipe 233 and the second air pipe 237, and the empty slot 2311 on the right delivers air through the first one-way valve, the air delivery pipe 232 and the first air pipe 236. When the guide slot 211 moves to the left, the first one-way valve in the empty slot 2311 on the left is turned on and the second one-way valve is cut off, the first one-way valve in the empty slot 2311 on the right is turned off and the second one-way valve is turned on, and the empty slot 2311 on the right draws air through the second one-way valve, the air extraction pipe 233 and the second air pipe 237. The empty slot 2311 on the left side sends out air through the first one-way valve, the air supply pipe 232 and the first air pipe 236. With the help of the reciprocating expansion and contraction process of the pushing assembly 22, positive pressure is continuously supplied in the first air pipe 236, and negative pressure is generated in the second air pipe 237. The connecting hose is used to connect the transfer pipe 246 and the second air pipe 237. With the help of the partial negative pressure in the second air pipe 237 and the suction hole 245, a suction cup-like effect is generated to absorb the cigarette box entering the angle leveling assembly 24, thereby enhancing the stability of the cigarette box when placed in the angle leveling assembly 24. The first air pipe 236 sends the air in the empty slot 2311 into the mounting tube 251 and sprays it out under the action of the pressure difference, thereby accelerating the cigarette box sliding down the guide slot 211 and shortening the time required to slide to the bottom. At the same time, the dust on the surface of the cigarette box can be removed with the help of wind force, and dust is not easily collected and accumulated on the inner surface of the guide slot 211.

[0057] In the present invention, the top of the guide groove 211 is aligned with the conveyor belt for transmitting cigarette boxes, and the conveyor belt continuously sends the cigarette boxes to be marked to the guide assembly 21. The cigarette boxes sent into the guide assembly 21 by the conveyor belt slide down along the surface of the guide groove 211 and lean against the inner side wall of the bottom of the guide groove 211 under the action of their own gravity. During the sliding process, the posture of the cigarette box is automatically corrected by the kinetic energy and gravity of the cigarette box, so that the two surfaces of the outer surface of the cigarette box that contact the guide groove 211 will fit with the two inner side surfaces of the guide groove 211.

[0058] Next, through the extension of the pushing assembly 22, the output end of the electric push rod 221 drives the piston plate 222 to move toward the discharge port 212. During this process, the piston plate 222 drives 223 to move together with it toward the discharge port 212 by means of the magnetic force between the piston plate 222 and 223. 223 pushes the cigarette box through the discharge port 212 through 224 and enters the angle leveling assembly 24. Then, the electric push rod 221 begins to shorten, driving the piston plates 222, 223 and 224 to move away from the discharge port 212 and automatically reset. Then, the conveyor belt delivers the next cigarette box into the guide assembly 21, and the pushing assembly 22 repeats the above process, thereby continuously delivering the cigarette boxes entering the guide assembly 21 into the angle leveling assembly 24.

[0059] After the pushing component 22 sends the cigarette box into the storage table 244, the second driving motor 243 is started, and the output end of the second driving motor 243 drives the storage table 244 and the cigarette box therein to rotate forward around the adjusting shaft 242 through the adjusting shaft 242 until the upper surface of the cigarette box is adjusted to be horizontal and flush with the working end of the laser marking device body 11, and then the laser marking device body 11 works to laser mark the cigarette box located in the storage table 244. After the marking is completed, the second driving motor 243 is started, first driving the storage table 244 to continue to rotate forward. As the storage table 244 rotates, the cigarette box automatically slides off the storage table 244 under the action of its own gravity, and the unloading is completed. After that, the second driving motor 243 is reversed, driving the storage table 244 to reverse, until the storage table 244 returns to its initial state and is aligned with the discharge port 212;

[0060] During the reciprocating extension and retraction process of the push assembly 22, the output end of the electric push rod 221 will drive the piston plate 222 to move back and forth along the empty slot 2311 in the cylinder 231. When the piston plate 222 moves to the right, the first one-way valve in the empty slot 2311 on the left is cut off and the second one-way valve is turned on, and the first one-way valve in the empty slot 2311 on the right is turned on and the second one-way valve is cut off. The empty slot 2311 on the left draws air through the second one-way valve, the exhaust pipe 233 and the second air pipe 237, while the empty slot 2311 on the right draws air through the first one-way valve, the air supply pipe 232 and the first air pipe 236. When the air is sent out and the guide groove 211 moves to the left, the first one-way valve in the left empty groove 2311 is turned on and the second one-way valve is turned off, and the first one-way valve in the right empty groove 2311 is turned off and the second one-way valve is turned on. The right empty groove 2311 sucks air through the second one-way valve, the air extraction pipe 233 and the second air pipe 237, while the left empty groove 2311 sends out air through the first one-way valve, the air delivery pipe 232 and the first air pipe 236. With the help of the reciprocating expansion and contraction process of the pusher assembly 22, positive pressure is continuously supplied in the first air pipe 236, and negative pressure is generated in the second air pipe 237.

[0061] A connecting hose is used to connect the adapter tube 246 and the second air pipe 237. With the help of partial negative pressure in the second air pipe 237 and the suction hole 245, a suction cup-like effect is produced to absorb the cigarette box entering the angle leveling component 24, thereby enhancing the stability of the cigarette box when placed in the angle leveling component 24. The first air pipe 236 sends the air in the empty groove 2311 into the installation tube 251 and sprays it out under the action of pressure difference, thereby accelerating the cigarette box sliding down the guide groove 211 and shortening the time required to slide to the bottom. At the same time, the surface of the cigarette box can be dusted with the help of wind force, and dust is not easy to fall and accumulate on the inner surface of the guide groove 211.

Claims

1. A laser marking device for anti-counterfeiting of cigarette packaging, comprising a laser marking device (1), an automatic loading and unloading device (2) and a supporting device (3), characterized in that: The laser marking device (1) comprises a laser marking device body (11), a movable base (12) and a distance adjustment component (13); the automatic loading and unloading device (2) comprises a guide component (21); a push component (22) is fixedly connected to a surface on one side of the bottom end of the guide component (21); a pneumatic component (23) is fixedly connected between the guide component (21) and the push component (22); an angle leveling component (24) facing the laser marking device body (11) is installed on the end of the pneumatic component (23) away from the push component (22); the movable base (12) and the angle leveling component (24) are installed and connected together; an acceleration component (25) is fixedly connected between the inner side surface of the end of the guide component (21) away from the push component (22); and a deceleration switch (26) is installed on the surface of the side of the guide component (21) away from the acceleration component (25); The guide assembly (21) comprises a guide groove (211), a discharge port (212) is formed on a side wall of the guide groove (211) close to the angle leveling assembly (24), the push assembly (22) comprises an electric push rod (221), a piston plate (222) is fixedly connected to the output end of the electric push rod (221), a magnetic plate (223) is slidably connected to the inner surface of the bottom end of the guide groove (211), and a push plate (223) is fixedly connected to the magnetic plate (223) and is slidably connected to the inner surface of the guide groove (211). 24), the piston plate (222) and the magnetic plate (223) are attracted to each other by magnetic force, the angle leveling component (24) comprises a mounting frame (241), the mounting frame (241) is fixedly connected to a surface of the air pressure component (23) away from the pusher component (22), an adjusting shaft (242) is rotatably connected to the mounting frame (241), a second driving motor (243) is mounted on one end of the adjusting shaft (242), and a storage table (244) is fixedly connected to the other end of the adjusting shaft (242); The pneumatic assembly (23) comprises a cylinder (231), the cylinder (231) being fixedly connected to a side surface of the guide groove (211) close to the electric push rod (221), a hollow groove (2311) being provided in the cylinder (231), an output end of the electric push rod (221) extending into the hollow groove (2311) and being sealingly and slidably connected to the cylinder (231), the piston plate (222 being sealingly and slidably connected in the hollow groove (2311), two first air holes (234) being symmetrically provided on a side surface of the cylinder (231), both of the first air holes (234) having a plurality of first air holes (234) each ... A first one-way valve is installed; two second air holes (235) are symmetrically opened on a surface of a side of the cylinder (231) away from the first air hole (234); a second one-way valve is installed in each of the two second air holes (235); an air supply pipe (232) connected to the two first air holes (234) is installed on the cylinder (231); an air extraction pipe (233) connected to the two second air holes (235) is installed on the cylinder (231); a first air pipe (236) is installed on the air supply pipe (232); and a second air pipe (237) is installed on the second air hole (235); An air suction hole (245) is provided on an inner surface of the storage platform (244) facing the guide groove (211); a transfer tube (246) in communication with the air suction hole (245) is fixedly connected to the storage platform (244); the transfer tube (246) can be in communication with the second air pipe (237) via a connecting hose; The acceleration assembly (25) comprises a mounting tube (251), the mounting tube (251) being fixedly connected between the inner side surfaces of the guide groove (211) and one end thereof away from the electric push rod (221), a connecting portion (252) being fixedly connected to the mounting tube (251), an air outlet (253) facing the guide groove (211) being installed on the mounting tube (251), one end of the first air pipe (236) being fixedly connected to the connecting portion (252), and a baffle (213) being installed on the guide groove (211); The deceleration switch (26) comprises a mounting block (261), a plurality of mounting holes (214) are formed on a surface of a side of the guide groove (211) facing away from the mounting tube (251), the mounting block (261) is fixedly connected to a portion of the guide groove (211) directly opposite to the mounting holes (214), a mounting rod (262) is fixedly connected to a surface of one side of the mounting block (261), a slider (263) is slidably connected inside the mounting block (261), and a power connection post (264) is installed on a surface of one side of the mounting rod (262) close to the slider (263) and a surface of one side of the slider (263) close to the mounting rod (262). A limit spring is fixedly connected between the mounting rod (262) and the slider (263); a connecting pipe (265) is fixedly connected to the outer surface of the mounting block (261); a shunt pipe (238) is fixedly connected to one end of the second air pipe (237) close to the mounting block (261); the shunt pipe (238) and the plurality of connecting pipes (265) are connected one by one via a plurality of shunt valves (239); a solenoid valve is provided in one end of the second air pipe (237) connected to the shunt pipe (238); the plurality of deceleration switches (26) are connected in parallel to the solenoid valve; the deceleration switch (26) is used to control the switching of the solenoid valve.

2. The anti-counterfeiting laser marking device for cigarette packaging according to claim 1 is characterized in that: The distance adjustment component (13) is installed between the laser marking device body (11) and the movable base (12), the movable base (12) comprising a telescopic tube (121), a telescopic rod (122) being slidably connected inside the telescopic tube (121), a bottom plate (123) being fixedly connected to the bottom end of the telescopic rod (122), a mounting sleeve (124) being fixedly connected to the telescopic tube (121), the second drive motor (243) being fixedly installed in the mounting sleeve (124), the distance adjustment component (13) comprising two mounting plates (131) symmetrically fixedly connected to the outer surface of the laser marking device body (11), one of the mounting plates (131) being fixedly connected to the first drive motor (132), a threaded rod (133) being rotatably connected to the two mounting plates (131) being fixedly connected to the output end of the first drive motor (132), a threaded hole being opened on the mounting sleeve (124), the threaded rod (133) being threadedly connected to the threaded hole on the mounting sleeve (124).

3. The anti-counterfeiting laser marking device for cigarette packaging according to claim 2 is characterized in that: The support device (3) comprises a support seat (31), an angle adjustment device (32) is installed between the support seat (31) and the guide assembly (21), the support seat (31) comprises a support frame (311), a limit block (312) is fixedly connected to the support frame (311), two inner racks (215) are symmetrically fixedly connected to a side surface of the guide groove (211), a reinforcement rod (216) is fixedly connected between one end of the two inner racks (215) and the guide groove (211), and the inner racks (215) are fixedly connected to the guide groove (211). (215) is slidably connected in the limit block (312), and the angle adjustment device (32) includes two side plates (321) fixedly connected to the support frame (311), wherein a third drive motor (322) is installed on one of the side plates (321), and the output end of the third drive motor (322) is rotatably connected to the two side plates (321), and an adjustment gear (323) is fixedly connected to the output end of the third drive motor (322), and the adjustment gear (323) is meshingly connected to the inner rack (215).

4. A laser marking method based on the anti-counterfeiting laser marking device for cigarette packaging according to claim 3, characterized in that: The following steps are involved: S1, aligning the top of the guide groove (211) with the conveyor belt for transporting cigarette boxes, the conveyor belt continuously transports the cigarette boxes to be marked to the guide assembly (21), and the cigarette boxes transported into the guide assembly (21) by the conveyor belt slide downward along the surface of the guide groove (211) and lean against the inner wall of the bottom of the guide groove (211) under the action of their own gravity. During the sliding process, the posture of the cigarette box is automatically corrected by the kinetic energy and gravity of the cigarette box, so that the two surfaces of the outer surface of the cigarette box that are in contact with the guide groove (211) are in contact with the two inner surfaces of the guide groove (211); S2. Next, the output end of the electric push rod (221) drives the piston plate (222) to move toward the discharge port (212) through the extension of the push assembly (22). During this process, the piston plate (222) drives the magnetic plate (223) to move together with the piston plate (222) toward the discharge port (212) by virtue of the magnetic force between the piston plate (222) and the magnetic plate (223). The magnetic plate (223) pushes the cigarette box through the discharge port (212) and into the angle leveling assembly (24) through the push plate (224). Subsequently, the electric push rod (221) begins to shorten, driving the piston plate (222), the magnetic plate (223) and the push plate (224) to move away from the discharge port (212) and automatically reset. Then, the conveyor belt delivers the next cigarette box into the guide assembly (21). The push assembly (22) repeats the above process, thereby continuously delivering the cigarette boxes that have entered the guide assembly (21) into the angle leveling assembly (24). S3. After the pushing component (22) sends the cigarette box into the storage table (244), the second drive motor (243) is started, and the output end of the second drive motor (243) drives the storage table (244) and the cigarette box therein to rotate forward around the adjustment shaft (242) through the adjustment shaft (242) until the upper surface of the cigarette box is adjusted to be horizontal and flush with the working end of the laser marking device body (11), and then the laser marking device body (11) is operated to align the cigarette box on the storage table ( After the marking is completed, the second drive motor (243) is started, first driving the storage platform (244) to continue to rotate forward, and as the storage platform (244) rotates, the cigarette box automatically slides off the storage platform (244) under the action of its own gravity, completing the unloading, and then the second drive motor (243) is reversed, driving the storage platform (244) to reverse, until the storage platform (244) returns to its initial state and is aligned with the discharge port (212); S4. During the reciprocating extension and retraction process of the pusher assembly (22), the output end of the electric push rod (221) drives the piston plate (222) to move back and forth along the empty slot (2311) in the cylinder (231). When the piston plate (222) moves to the right, the first one-way valve in the left empty slot (2311) is closed and the second one-way valve is opened. The first one-way valve in the right empty slot (2311) is opened and the second one-way valve is closed. The left empty slot (2311) is filled with air through the second one-way valve and the exhaust pipe (2311). 3) and the second air pipe (237) suck air, while the empty slot (2311) on the right side sends air out through the first one-way valve, the air delivery pipe (232) and the first air pipe (236). When the guide slot (211) moves to the left, the first one-way valve in the empty slot (2311) on the left side is turned on and the second one-way valve is turned off, while the first one-way valve in the empty slot (2311) on the right side is turned off and the second one-way valve is turned on. The empty slot (2311) on the right side is turned on through the second one-way valve, the air extraction pipe (233) and the second air pipe (2 37) sucks air, while the empty slot (2311) on the left side sends air out through the first one-way valve, the air supply pipe (232) and the first air pipe (236). With the help of the reciprocating expansion and contraction process of the pusher assembly (22), positive pressure is continuously supplied in the first air pipe (236), and negative pressure is generated in the second air pipe (237). The connecting hose is used to connect the transfer pipe (246) and the second air pipe (237). With the help of the partial negative pressure in the second air pipe (237), the suction hole (245) is used to absorb the air. The cigarette box enters the angle leveling assembly (24), and the stability of the cigarette box when placed in the angle leveling assembly (24) is enhanced. The first air pipe (236) sends the air in the empty slot (2311) into the mounting tube (251), and sprays it out under the action of the pressure difference, thereby accelerating the cigarette box sliding down the guide slot (211), shortening the time required to slide to the bottom, and at the same time, with the help of wind force, dust is removed from the surface of the cigarette box, and dust is not easily deposited or accumulated on the inner surface of the guide slot (211).

Images