A system for spraying glue on inner frame paper of a moisture and aroma preserving cigarette pack

Abstract

The application provides a system for spraying glue on inner frame paper of a moisture and aroma preserving cigarette pack, comprising a first glue spraying drive controller, a second glue spraying drive controller, a first glue gun, a second glue gun, a third glue gun, a fourth glue gun and a fifth glue gun. The first glue spraying drive controller is signal connected with the first glue gun, the second glue gun, the third glue gun and the fourth glue gun respectively, and the second glue spraying drive controller is signal connected with the fifth glue gun. The first glue gun, the second glue gun, the third glue gun and the fourth glue gun are installed below a cigarette mold box, and sequentially spray glue on four corresponding glue spraying points on a vertical surface of the inner frame paper. The fifth glue gun is arranged below and to the right of an entrance channel of a first folding wheel, and sprays glue on multiple glue spraying points on a horizontal surface of the inner frame paper. The application can improve the convenience of producing special-shaped cigarette packs, and improve the work efficiency of producing cigarette packs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette packaging, in particular to an inner frame paper glue spraying system for a moisture and aroma preserving cigarette pack. BACKGROUND

[0002] With the diversification of market demand, special-shaped cigarette packaging and moisture and aroma preserving packaging have become new growth points in the current market demand. Moisture and aroma preserving cigarette packaging in small boxes is divided into three processes: the first process is to wrap the inner frame paper in the outer packaging of finished cigarettes; the second process is to wrap the moisture and aroma preserving aluminum film outside the cigarette pack wrapped with the inner frame paper; and the third process is to pack the cigarette pack wrapped with the moisture and aroma preserving aluminum film into a small box. The existing conventional cigarette production line uses a glue roller coating device, and the main shaft of the original machine main motor drives the mechanical glue disc to coat glue. With the operation of the machine, the glue roller coats glue on the trademark paper, and when the trademark paper wraps the cigarette pack, it is connected together with the inner frame paper through the glue. However, the production of moisture and aroma preserving cigarette packs has the following problems with the existing conventional cigarette production line: (1) due to the different production processes, the mechanical glue coating of the existing scheme cannot be applied to the new moisture and aroma preserving cigarette production line. (2) The existing inner frame paper is bonded with the trademark paper through the glue on the trademark paper. The new moisture and aroma preserving cigarette pack needs to be separately folded and formed, wrapped around the cigarette, and then sent to the next process to wrap the aluminum film, and then packed into a small box. The original mechanical glue coating cannot be applied to the new production line. (3) The existing scheme of the inner frame paper is relatively small, and only two glue points are needed to bond with the trademark paper. The new moisture and aroma preserving cigarette pack is a separate packaging, and 10 glue points need to be coated on the moisture and aroma preserving cigarette pack. The mechanical glue coating cannot meet the demand. (4) Once the position is fixed, it is difficult to change the glue point size and glue coating position of the existing mechanical glue coating, which is not conducive to the debugging and production of the new production line. Therefore, how to conveniently control the glue spraying of the inner frame paper of the moisture and aroma preserving cigarette pack has important significance. SUMMARY

[0003] The present application provides an inner frame paper glue spraying system for a moisture and aroma preserving cigarette pack, which solves the problem that the existing cigarette pack production line cannot be used for coating glue on the inner frame paper of the moisture and aroma preserving cigarette pack, improves the convenience of special-shaped cigarette packaging production, and improves the work efficiency of cigarette pack production.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] An inner frame paper glue spraying system for a moisture and aroma preserving cigarette pack, comprising: a first glue spraying drive controller, a second glue spraying drive controller, a first glue gun, a second glue gun, a third glue gun, a fourth glue gun and a fifth glue gun.

[0006] The cigarette module box is fixed on the module box conveying belt, the module box contains cigarettes, and the inner frame paper is in a right angle shape and covers above the cigarette module box.

[0007] The first glue gun, the second glue gun, the third glue gun and the fourth glue gun are installed below the cigarette module box, and sequentially spray glue on the corresponding four glue spraying points on the vertical surface of the inner frame paper.

[0008] The first glue gun, the second glue gun, the third glue gun and the fourth glue gun are installed below the cigarette module box, and sequentially spray glue on the corresponding four glue spraying points on the vertical surface of the inner frame paper.

[0009] The fifth glue gun is arranged below the right side of the first folding wheel entrance channel to spray glue on the plurality of glue spraying points on the horizontal surface of the inner frame paper.

[0010] Preferably, the PLC controller is further included.

[0011] The PLC controller is signal connected with the first glue gun driving controller and the second glue gun driving controller, and the PLC controller controls the first glue gun driving controller or the second glue gun driving controller to drive the corresponding glue gun to spray glue according to the position of the cigarette module box on the module box conveying belt.

[0012] Preferably, the first trigger optical fiber, the second trigger optical fiber and the third trigger optical fiber are further included.

[0013] The PLC controller is signal connected with the first trigger optical fiber, the second trigger optical fiber and the third trigger optical fiber.

[0014] The first trigger optical fiber is installed on the first position above the module box conveying belt through a support, the second trigger optical fiber is installed on the second position above the module box conveying belt through a support, and the third trigger optical fiber is installed on the upper part of the first folding wheel entrance channel.

[0015] When the cigarette module box reaches the first position and the first trigger optical fiber detects the inner frame paper, the PLC controller drives the first glue gun and the second glue gun to spray glue through the first glue gun driving controller.

[0016] When the cigarette module box reaches the second position and the second trigger optical fiber detects the inner frame paper, the PLC controller drives the third glue gun and the fourth glue gun to spray glue through the first glue gun driving controller.

[0017] When the cigarette module box reaches the first folding wheel entrance channel and the third trigger optical fiber detects the inner frame paper, the PLC controller drives the fifth glue gun to spray glue through the second glue gun driving controller.

[0018] Preferably, it further comprises: a first fiber amplifier, a second fiber amplifier and a third fiber amplifier;

[0019] The first fiber amplifier is arranged between the PLC controller and the first trigger fiber, the second fiber amplifier is arranged between the PLC controller and the second trigger fiber, and the third fiber amplifier is arranged between the PLC controller and the third trigger fiber.

[0020] Preferably, it further comprises: an encoder;

[0021] The encoder is installed on the main transmission shaft of the packaging machine, the PLC controller is signal connected with the encoder, and when the rotation phase detected by the encoder is equal to the set trigger phase, the first glue gun driving controller or the second glue gun driving controller drives the first glue gun, the second glue gun, the third glue gun, the fourth glue gun or the fifth glue gun to perform multi-point glue spraying on the corresponding inner frame paper.

[0022] Preferably, it further comprises: a touch screen;

[0023] The touch screen is signal connected with the PLC controller, and the touch screen is provided with a man-machine interactive operation interface.

[0024] Preferably, it further comprises: a glue path branch device and a glue supply air pump;

[0025] The glue supply air pump is arranged on the glue supply pipeline between the glue barrel and the glue path branch device, and the glue path branch device is respectively connected with the pipeline of the first glue gun, the second glue gun, the third glue gun, the fourth glue gun and the fifth glue gun.

[0026] Preferably, it further comprises: a glue gun cleaning bullet;

[0027] The first glue gun, the second glue gun, the third glue gun, the fourth glue gun and the fifth glue gun are all provided with the glue gun cleaning bullet, and the glue gun cleaning bullet is arranged on the side surface of the glue spraying nozzle, which is used to wipe off the dry glue and residual glue water on the glue spraying nozzle after the work is completed.

[0028] Preferably, it further comprises: a glue gun cleaning electromagnetic valve;

[0029] The PLC controller is signal connected with the control end of the glue gun cleaning electromagnetic valve, and the glue gun cleaning electromagnetic valve is arranged in the air supply pipeline of the glue gun cleaning bullet.

[0030] The PLC controller controls the spray gun cleaning electromagnetic valve to be turned on when the number of produced cigarette packets reaches a set threshold, air pressure gas in the gas supply pipeline is turned on, the glue gun cleaning bullet is driven to move, and the residual glue liquid and dry glue on the glue spraying nozzle are wiped off.

[0031] The application provides an inner frame paper glue spraying system for moisture and aroma preserving cigarette packets, adopts two glue spraying drive controllers to control multiple glue guns to spray glue on corresponding positions of the inner frame paper, solves the problem that the existing cigarette packet production line cannot be used for glue coating of the inner frame paper of the moisture and aroma preserving cigarette packets, improves the convenience of cigarette special-shaped package production, and improves the work efficiency of cigarette packet production. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows.

[0033] Figure 1 is a structural schematic diagram of an inner frame paper glue spraying system for moisture and aroma preserving cigarette packets provided by the application.

[0034] Figure 2 is a schematic diagram of the inner frame paper and the cigarette module box provided by the embodiment of the application.

[0035] Figure 3 is a glue spraying point schematic diagram of the inner frame paper provided by the embodiment of the application.

[0036] Figure 4 is a control principle schematic diagram of the inner frame paper glue spraying system provided by the application.

[0037] Figure 5 is a control method flow chart of the inner frame paper glue spraying provided by the application. DETAILED DESCRIPTION

[0038] In order to make the persons in the technical field better understand the scheme of the embodiments of the application, the embodiments of the application will be further described in detail in combination with the drawings and embodiments.

[0039] In view of the problem that the existing cigarette packet production line cannot be used for glue coating of the inner frame paper of the moisture and aroma preserving cigarette packets, and the inconvenience and low work efficiency, the application provides an inner frame paper glue spraying system for moisture and aroma preserving cigarette packets, solves the problem that the existing cigarette packet production line cannot be used for glue coating of the inner frame paper of the moisture and aroma preserving cigarette packets, improves the convenience of cigarette special-shaped package production, and improves the work efficiency of cigarette packet production.

[0040] As Figures 1 to 4As shown, a glue spraying system for the inner frame paper of a cigarette pack includes: a first glue spraying drive controller 3, a second glue spraying drive controller 4, a first glue gun 12, a second glue gun 13, a third glue gun 14, a fourth glue gun 15, and a fifth glue gun 16. A cigarette mold box 11 is fixed on a mold box conveyor belt, containing cigarettes. The inner frame paper, in a right-angle shape, covers the cigarette mold box 11. After a folding process, the middle fold of the inner frame paper is inserted into a slot in the center of the cigarette mold box. The first glue spraying drive controller 3 is signal-connected to the first glue gun 12, the second glue gun 13, the third glue gun 14, and the fourth glue gun 15, respectively. The second glue spraying drive controller 4 is signal-connected to the fifth glue gun 16. The first, second, third, and fourth glue guns are installed at the lower rear of the cigarette mold box, sequentially spraying glue onto four corresponding glue spraying points on the vertical surface of the inner frame paper. The fifth glue gun is located to the lower right of the inlet channel of the first folding wheel to spray glue onto multiple glue spray points on the horizontal surface of the inner frame paper.

[0041] Specifically, Figure 2 In the diagram, 'a' represents the inner frame paper, 'b' represents the cigarette mold box, and 'c' represents the mold box conveyor belt. For example... Figure 3 As shown, the inner frame paper, folded in the previous process, is conveyed to the cigarette mold box. The inner frame paper covers the cigarette mold box at a right angle. After the folding process, the middle corner of the inner frame paper is inserted into the empty groove in the middle of the cigarette mold box. The mold box conveyor belt drags the cigarette mold box from right to left. In this process, the inner frame paper needs to be sprayed with glue at five positions: A, B, C, D, and E. At position E, multiple glue dots need to be sprayed with the same glue gun. The first and second glue spraying drive controllers are installed in the small electrical cabinet at the rear of the packaging machine. The small electrical cabinet is equipped with circuit breakers and terminal blocks. The cabinet contains the necessary three-phase AC380V power supply, single-phase AC220V power supply, DC24V power supply, as well as the circuit breakers and terminal blocks required by the distribution cabinet. The power module is located inside the 315 chassis electrical cabinet. It takes AC220V power from the main unit electrical cabinet and converts it into DC24V and DC56V power. The 24V power is used for the calculation and control of the glue spraying drive controller, and the 56V is used to drive the glue gun to spray glue.

[0042] The cigarette mold box is fixed on the mold box conveyor belt. The mold box contains the cigarettes, and the inner frame paper is folded at a right angle over the top of the mold box. The inner frame paper is folded in the previous process, with the middle folded corner inserted into the slot in the middle of the mold box, facilitating the transport of the cigarettes and inner frame paper from right to left. First glue gun 12, second glue gun 13, third glue gun 14, and fourth glue gun 15 are installed at the lower rear of the mold box. The glue spraying control lines on these four glue guns are connected to the output point of the first glue spraying drive module 3. Fifth glue gun 16 is installed at the lower right of the first folding wheel inlet channel, and its glue spraying control line is connected to the output point of the second glue spraying drive module 4. The first wheel inlet channel 17 is located between the mold box conveyor belt and the first folding wheel, facilitating the transfer of the inner frame paper cigarette pack from the cigarette pack conveyor belt into the first folding wheel. When the inner frame paper reaches the glue spraying point, the above five glue guns spray glue onto it. A flathead knob is located at the bottom of the glue gun; the operator can use a flathead screwdriver to turn the knob to adjust the glue volume. At the same time, depending on the glue gun and product requirements, spot spraying and line spraying can be performed to adapt to diversified product production.

[0043] The system also includes: a PLC controller 2; the PLC controller 2 is connected to the first glue spraying drive controller 3 and the second glue spraying controller 4 respectively, and the PLC controller 2 controls the first glue spraying drive controller 3 or the second glue spraying drive controller 4 to drive the corresponding glue gun to spray glue according to the position of the cigarette mold box on the mold box conveyor belt.

[0044] In practical applications, Beckhoff PLCs can be used as the PLC controller, which is installed inside the electrical cabinet of the inner frame paper packaging machine. The output terminals of the Beckhoff PLC controller are connected to the first glue spraying drive controller 3 and the second glue spraying drive controller 4. The output terminals of the first glue spraying drive controller are connected to the first glue gun 12, the second glue gun 13, the third glue gun 14 and the fourth glue gun 15. The output terminal of the second glue spraying drive controller is connected to the fifth glue gun 16.

[0045] The system also includes a first trigger fiber 8, a second trigger fiber 9, and a third trigger fiber 10. The PLC controller 2 is signal-connected to the first trigger fiber 8, the second trigger fiber 9, and the third trigger fiber 10, respectively. The first trigger fiber 8 is mounted above the mold box conveyor belt at a first position via a bracket; the second trigger fiber 9 is mounted above the mold box conveyor belt at a second position via a bracket; and the third trigger fiber 10 is mounted on the upper part of the first folding wheel inlet channel 18. When the cigarette mold box reaches the first position and the first trigger fiber 8 detects the inner frame paper, the PLC controller drives the first glue gun 12 and the second glue gun 13 to spray glue via the first glue spraying drive controller 3. When the cigarette mold box reaches the second position and the second trigger fiber 9 detects the inner frame paper, the PLC controller 2 drives the third glue gun 14 and the fourth glue gun 15 to spray glue via the first glue spraying drive controller 3. When the cigarette mold box reaches the first folding wheel inlet channel and the third trigger fiber 10 detects the inner frame paper, the PLC controller drives the fifth glue gun 16 to spray glue via the second glue spraying drive controller 4.

[0046] In practical applications, after the equipment is started, the mold box conveyor belt carries the inner frame paper and cigarettes on the mold box in a counter-clockwise direction from right to left. When the inner frame paper reaches the first trigger fiber 7, the mold box will pause at this position for a certain period of time. The first trigger fiber detects the inner frame paper and then transmits a signal to the Beckhoff PLC. Through programming, the Beckhoff PLC outputs glue spraying signals for the first and second glue guns to the first glue spraying drive module when the machine reaches the first glue spraying phase position (the glue spraying phase is generally within the cigarette mold box pause period). The first glue spraying drive module sends glue spraying signals to the first and second glue guns, and the first and second glue guns spray glue during the mold box pause interval. Figure 2 Glue is sprayed at points A and B. Similarly, when the inner frame paper reaches the second trigger fiber 8, the second trigger fiber detects the inner frame paper. When the Beckhoff PLC reaches the second glue spraying phase, the third and fourth glue guns... Figure 2 Glue is sprayed at points C and D. When the inner frame paper is conveyed from the mold box conveyor belt into the inlet channel of the first folding wheel and reaches the third trigger fiber 9, the third trigger fiber detects the inner frame paper and immediately transmits a signal to the Beckhoff PLC. Through programming, the Beckhoff PLC outputs multiple glue spraying signals to the second glue spraying drive controller when the machine reaches the third glue spraying phase and the third trigger fiber detects the inner frame paper. The second glue spraying drive controller sends glue spraying signals to the fifth glue gun, and the fifth glue gun... Figure 2 The adhesive is applied at multiple points along the center edge (E). The distance between these points can be set on the touchscreen by changing the adhesive application phase. Simultaneously, when the fiber optic cable detects the inner frame paper, the PLC can count the number of cigarette packs.

[0047] The system also includes: a first fiber optic amplifier 5, a second fiber optic amplifier 6, and a third fiber optic amplifier 7. The first fiber optic amplifier 5 is disposed between the PLC controller 2 and the first trigger fiber 8, the second fiber optic amplifier 6 is disposed between the PLC controller 2 and the second trigger fiber 9, and the third fiber optic amplifier 7 is disposed between the PLC controller 2 and the third trigger fiber 10.

[0048] Specifically, such as Figure 1 As shown, the first fiber optic amplifier 5, the second fiber optic amplifier 6, and the third fiber optic amplifier 7 are fixed on a mounting bracket. The mounting bracket is installed on the machine body behind the mold box conveyor belt using hexagonal nuts. This bracket processes the light received by the trigger fiber and converts the light signal into high and low levels, transmitting it to the PLC's I / O point. The amplifier has buttons to adjust the photosensitivity. When the inner frame paper of the mold box reaches the corresponding glue spraying position, the infrared light emitted by the fiber optic cable is reflected back by the inner frame paper, significantly increasing the intensity of the infrared light received by the fiber optic amplifier. This indicates the presence of the inner frame paper, triggering an electrical signal to the Beckhoff PLC indicating its presence. At startup, the Beckhoff PLC controller inputs are connected to the first fiber optic amplifier 5, the second fiber optic amplifier 6, and the third fiber optic amplifier 7. The PLC outputs are connected to the first glue spraying drive controller 3, the second glue spraying drive controller 4, and the spray gun cleaning solenoid valve 22. The first glue spraying drive controller output is connected to four glue guns, and the second glue spraying drive controller output is connected to one glue gun.

[0049] The system also includes: an encoder (not shown in the figure); the encoder is installed on the main drive shaft of the packaging machine, the PLC controller is connected to the encoder signal, and when the rotation phase detected by the encoder is equal to the set trigger phase, it controls the first glue spraying drive controller or the second glue spraying drive controller to drive the first glue gun, the second glue gun, the third glue gun, the fourth glue gun or the fifth glue gun to spray glue at multiple points on the corresponding inner frame paper.

[0050] It should be noted that for each pack of cigarettes produced, the main shaft of the machine rotates one revolution, and one revolution is 360 degrees. We call the angle of the main shaft the phase. For example, when the main shaft rotates to 180 degrees, the angle fed back by the encoder is 180 degrees, and the mechanical phase at this time is 180 degrees.

[0051] The system also includes: a touch screen 1; the touch screen 1 is connected to the PLC controller 2 by signals, and the touch screen is equipped with a human-machine interface.

[0052] In practical application, the position of the inner frame paper can be changed by changing the value of the "glue spraying trigger phase" on the touch screen. The value of the "glue spraying trigger phase" can be changed in the range of 0-359. The specific spraying position can be changed by changing the "first glue spraying phase", "second glue spraying phase" and "third glue spraying phase" on the man-machine interactive interface of the touch screen. The setting through the touch screen can be applied to different cigarette products of different production brands. According to the debugging condition, the threshold value can be set to adapt to various detection environments.

[0053] The system further comprises a glue line branch 19 and a glue supply air pump 20. The glue supply air pump is arranged on the glue supply pipeline between a glue barrel 21 and the glue line branch 19. The glue line branch 19 is respectively connected with the first glue gun 12, the second glue gun 13, the third glue gun 14, the fourth glue gun 15 and the fifth glue gun 16.

[0054] In practical application, the glue barrel 21 stores the glue required for production. The glue supply air pump 20 is controlled by positive pressure air. When the positive pressure air is turned on, the air pump works to pump the glue into the glue pipeline and the glue line branch 19, and keeps the glue pressure in the glue line branch constant. The glue supply air pump 20 is provided with a gas pressure display table and a glue pressure display table. The debugging personnel can adjust the compressed air and the glue pressure according to the requirement.

[0055] The system further comprises a glue gun cleaning bullet 17. The first glue gun 12, the second glue gun 13, the third glue gun 14, the fourth glue gun 15 and the fifth glue gun 16 are all provided with the glue gun cleaning bullet 17. The glue gun cleaning bullet 17 is arranged on the side of the glue spraying nozzle, and is used to wipe off the dry glue and residual glue on the glue spraying nozzle when the work is completed.

[0056] In practical application, the glue supply pipeline on the glue gun is connected with the glue line branch 19. The glue line branch 19 is provided with a stop valve at the position where each glue pipeline is connected, so as to facilitate the connection and closing of the single glue pipeline during debugging and maintenance. The glue gun cleaning bullet 17 is arranged on the side of the glue spraying nozzle.

[0057] The system further comprises a spray gun cleaning electromagnetic valve 22. The PLC controller 2 is signal connected with the control end of the spray gun cleaning electromagnetic valve 22. The spray gun cleaning electromagnetic valve 22 is arranged in the air supply pipeline of the glue gun cleaning bullet 17. When the number of produced cigarette packets reaches the set threshold value, the PLC controller controls the spray gun cleaning electromagnetic valve 22 to be conductive, so that the air pressure gas in the air supply pipeline is conductive, and drives the glue gun cleaning bullet to move, so as to wipe off the residual glue and dry glue on the glue spraying nozzle.

[0058] In an embodiment, the glue spraying control method for C800 small box cigarette packets is as follows: Figure 5As shown, when the trigger optical fiber detects that there is an inner frame paper on the mold box, a signal is output to the Beckhoff PLC, the Beckhoff PLC reads the device encoder phase and the glue spraying setting phase, when the encoder phase is equal to the glue spraying setting phase, the Beckhoff PLC outputs a glue spraying signal to the glue spraying drive module, and the glue spraying drive module outputs DC 56V to spray glue on the fixed position of the inner frame paper. When the first trigger optical fiber detects the inner frame paper cigarette pack, the counter in the Beckhoff PLC also counts the number of glue spraying times, when the number of glue spraying times reaches the set glue gun cleaning count value, the Beckhoff PLC judges the real-time phase of the device, if the device phase is not in the glue spraying setting phase. The Beckhoff PLC outputs a DC 24 signal to control the glue spraying cleaning electromagnetic valve to act, the high-pressure air on the electromagnetic valve is connected, the cleaning bullet on the glue gun is driven to act, and the residual glue on the glue spraying nozzle is wiped off.

[0059] It can be seen that the present application provides an inner frame paper glue spraying system for moisture and aroma preserving cigarette packs, which identifies the inner frame paper through an optical fiber, converts and amplifies the signal through an optical fiber amplifier, and adopts two glue spraying drive controllers to control multiple glue guns to spray glue on corresponding positions of the inner frame paper, effectively realizing automatic glue coating of the inner frame paper of the medium cigarette moisture preserving pack. Compared with the previous manual packaging, the efficiency is improved, and the product quality stability is ensured. The existing cigarette pack production line cannot be used for coating the inner frame paper of the moisture and aroma preserving cigarette pack, which can improve the convenience of cigarette special-shaped packaging production and improve the work efficiency of cigarette pack production.

[0060] The above describes the structure, features and effects of the present application in detail according to the embodiment shown in the drawing, the above description is only the preferred embodiment of the present application, but the present application is not limited to the embodiment shown in the drawing, any change or modification made according to the idea of the present application, or equivalent embodiment with equivalent changes, still within the scope of the present application.

Claims

1. A glue spraying system for the inner frame paper of a cigarette pack, characterized in that, include: First glue spraying drive controller, second glue spraying drive controller, first glue gun, second glue gun, third glue gun, fourth glue gun and fifth glue gun; The cigarette mold box is fixed on the mold box conveyor belt. The mold box contains the cigarette. The inner frame paper is right-angled and covers the top of the cigarette mold box. After the inner frame paper is folded, the middle corner is inserted into the empty groove in the middle of the cigarette mold box. The mold box conveyor belt drags the cigarette mold box from right to left. The first glue spraying drive controller is connected to the first glue gun, the second glue gun, the third glue gun and the fourth glue gun respectively, and the second glue spraying drive controller is connected to the fifth glue gun. The first glue gun, the second glue gun, the third glue gun, and the fourth glue gun are installed at the lower rear of the cigarette mold box, and spray glue onto the four corresponding glue spraying points on the vertical surface of the inner frame paper in sequence. The fifth glue gun is located to the lower right of the inlet channel of the first folding wheel to spray glue onto multiple glue spray points on the horizontal surface of the inner frame paper. An inlet channel is located between the mold box conveyor belt and the first folding wheel, which facilitates the inner frame cigarette pack to be conveyed from the cigarette pack conveyor belt into the first folding wheel. When the inner frame paper reaches the glue spraying point, the first glue gun, the second glue gun, the third glue gun, the fourth glue gun and the fifth glue gun perform spot spraying or line spraying according to product needs.

2. The inner frame paper adhesive spraying system for a cigarette pack according to claim 1, characterized in that, Also includes: PLC controller; The PLC controller is connected to the first glue spraying drive controller and the second glue spraying drive controller respectively. The PLC controller controls the first glue spraying drive controller or the second glue spraying drive controller to drive the corresponding glue gun to spray glue according to the position of the cigarette mold box on the mold box conveyor belt.

3. The inner frame paper spraying adhesive system for a cigarette pack according to claim 2, characterized in that, Also includes: First trigger fiber, second trigger fiber, and third trigger fiber; The PLC controller is connected to the first trigger fiber, the second trigger fiber, and the third trigger fiber respectively; The first triggering fiber is installed at a first position above the mold box conveyor belt via a bracket, the second triggering fiber is installed at a second position above the mold box conveyor belt via a bracket, and the third triggering fiber is installed at the upper part of the inlet channel of the first folding wheel; When the cigarette mold box reaches the first position and the first triggering optical fiber detects the inner frame paper, the PLC controller drives the first glue gun and the second glue gun to spray glue through the first glue spraying drive controller. When the cigarette mold box reaches the second position and the second trigger fiber detects the inner frame paper, the PLC controller drives the third glue gun and the fourth glue gun to spray glue through the first glue spraying drive controller. When the cigarette mold box reaches the inlet channel of the first folding wheel and the third trigger fiber detects the inner frame paper, the PLC controller drives the fifth glue gun to spray glue through the second glue spraying drive controller.

4. The inner frame paper adhesive spraying system for a cigarette pack according to claim 3, characterized in that, Also includes: First fiber amplifier, second fiber amplifier and third fiber amplifier; The first fiber optic amplifier is disposed between the PLC controller and the first trigger fiber, the second fiber optic amplifier is disposed between the PLC controller and the second trigger fiber, and the third fiber optic amplifier is disposed between the PLC controller and the third trigger fiber.

5. The inner frame paper spraying adhesive system for a cigarette pack according to claim 4, characterized in that, Also includes: Encoder; The encoder is installed on the main drive shaft of the packaging machine. The PLC controller is connected to the encoder signal and controls the first glue spraying drive controller or the second glue spraying drive controller to drive the first glue gun, the second glue gun, the third glue gun, the fourth glue gun or the fifth glue gun to spray glue at multiple points on the corresponding inner frame paper when the rotation phase detected by the encoder is equal to the set trigger phase.

6. The inner frame paper spraying adhesive system for a cigarette pack according to claim 5, characterized in that, Also includes: Touch screen; The touch screen is connected to the PLC controller via signals, and the touch screen is equipped with a human-machine interface.

7. The inner frame paper adhesive spraying system for a cigarette pack according to claim 6, characterized in that, Also includes: Adhesive circuit brancher and adhesive supply air pump; The glue supply air pump is installed on the glue supply pipeline between the glue tank and the glue line brancher. The glue line brancher is connected to the pipelines of the first glue gun, the second glue gun, the third glue gun, the fourth glue gun, and the fifth glue gun, respectively.

8. The adhesive spraying system for the inner frame paper of a cigarette pack according to claim 7, characterized in that, Also includes: Cleaning cartridges with a glue gun; The first glue gun, the second glue gun, the third glue gun, the fourth glue gun, and the fifth glue gun are all equipped with glue gun cleaning springs. The glue gun cleaning springs are located on the side of the glue nozzle and are used to wipe off the dry glue and residual glue on the glue nozzle when the work is completed.

9. The inner frame paper adhesive spraying system for a cigarette pack according to claim 8, characterized in that, Also includes: Spray gun cleaning solenoid valve; The PLC controller is connected to the control terminal of the spray gun cleaning solenoid valve, and the spray gun cleaning solenoid valve is installed in the air supply line of the glue gun cleaning spring. When the number of cigarette packs produced reaches a set threshold, the PLC controller controls the spray gun cleaning solenoid valve to open, allowing compressed air to flow through the air supply line, which in turn drives the glue gun cleaning spring to wipe away residual glue and dry glue from the nozzle.

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