Method, device, equipment and storage medium for laser punching of cigarettes to prevent smoldering

Abstract

The present invention discloses a method, device, equipment and storage medium for laser punching of cigarettes to prevent smoldering, wherein the method for laser punching of cigarettes to prevent smoldering includes the following steps: detecting cigarettes passing through a smoke inlet detection position and obtaining the number of cigarettes entering; detecting cigarettes passing through a smoke outlet detection position and obtaining the number of cigarettes leaving; calculating the difference between the number of cigarettes entering and the number of cigarettes leaving; judging whether the difference exceeds a preset value; if so, stopping the laser punching of the cigarettes and issuing an alarm; if not, continuing to perform laser punching of the cigarettes. The present invention can detect the number of cigarettes passing through a smoke inlet detection position and a smoke outlet detection position to obtain the number of cigarettes remaining at the laser punching position, thereby confirming whether there are cigarettes stuck at the laser punching position, and stopping the laser punching and issuing an alarm when judging that a cigarette is stuck, so that the staff can deal with related problems in a timely manner to prevent the occurrence of safety accidents caused by smoldering of cigarettes.

Description

Technical Field

[0001] The invention relates to the technical field of laser punching of cigarettes, and in particular to a method for preventing smoldering by laser punching of cigarettes. Background Art

[0002] According to the relevant regulations of the State Tobacco Monopoly Administration, the tar content of cigarettes must be lower than 12 mg. Therefore, manufacturers usually use laser drilling to make a circle of small holes on the cigarette filter to increase the air intake of the cigarette during smoking, thereby reducing people's intake of harmful substances such as tar, nicotine, and carbon monoxide during smoking through air dilution.

[0003] During the laser drilling process of cigarettes, cigarettes may get stuck in the focusing light path due to various reasons. After being repeatedly hit by the laser, the cigarettes will fall into the waste cigarette box and after a certain period of smoldering, they may ignite paper and tobacco, thus causing a safety accident.

[0004] To avoid accidents caused by smoldering cigarettes, manufacturers usually use manual visual inspection, that is, workers regularly observe whether there are cigarettes stuck during startup and production. However, manual inspection is prone to errors and omissions, and increases labor costs. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present application provides a method, device, equipment and storage medium for laser punching of cigarettes to prevent smoldering, which can prevent safety accidents caused by smoldering of cigarettes during the laser punching process of cigarettes.

[0006] This embodiment adopts the following technical solutions:

[0007] A method for laser punching of cigarettes to prevent smoldering, wherein the cigarettes are set to pass through a smoke inlet detection position, a laser punching position, and a smoke outlet detection position in sequence during transmission, and the method comprises the following steps:

[0008] Detect cigarettes passing through the smoke inlet detection position and obtain the number of cigarettes inlet;

[0009] Detect cigarettes passing through the smoke detection position and obtain the number of cigarettes discharged;

[0010] Calculate the difference between the amount of smoke entering and the amount of smoke exiting;

[0011] Determine whether the difference exceeds a preset value;

[0012] If it exceeds, the laser drilling will stop and an alarm will be issued;

[0013] If not, continue with laser drilling.

[0014] Furthermore, in the method for preventing smoldering by laser drilling of cigarettes, the step of detecting cigarettes passing through the smoke inlet detection position and obtaining the number of cigarettes inlet includes:

[0015] The cigarettes are transmitted through the drum wheel, and the smoke inlet sensor detects each cigarette slot passing through the smoke inlet detection position on the drum wheel and confirms whether there is a cigarette in each cigarette slot;

[0016] The cigarettes passing through the smoke inlet detection position are counted cumulatively to obtain the number of cigarettes inlet.

[0017] Furthermore, in the method for preventing smoldering by laser drilling of cigarettes, the step of detecting cigarettes passing through the smoke output detection position and obtaining the number of smoke outputs includes:

[0018] The cigarettes are transmitted through the drum wheel, and the smoke outlet sensor detects each cigarette slot passing through the smoke outlet detection position on the drum wheel and confirms whether there are cigarettes in each cigarette slot;

[0019] The cigarettes passing through the smoke output detection position are counted cumulatively to obtain the number of cigarettes output.

[0020] Furthermore, the method for laser punching of cigarettes to prevent smoldering further includes the steps of:

[0021] After the laser drilling is stopped and an alarm is sounded, when the laser drilling is resumed, the smoke inlet quantity and the smoke outlet quantity are reset to zero, and the smoke inlet quantity and the smoke outlet quantity are obtained again.

[0022] A device for laser punching of cigarettes to prevent smoldering is provided, wherein the cigarettes are set to pass through a smoke inlet detection position, a laser punching position and a smoke outlet detection position in sequence during the transmission process, and the device comprises:

[0023] A smoke inlet detection module, used to detect cigarettes passing through a smoke inlet detection position;

[0024] A smoke detection module, used to detect cigarettes passing through a smoke detection position;

[0025] The logic control module is used to calculate the smoke inlet quantity, smoke outlet quantity and the difference between the smoke inlet quantity and the smoke outlet quantity, and determine whether the difference exceeds a preset value; if so, the laser drilling is stopped and an alarm is sounded; if not, the laser drilling is continued.

[0026] Furthermore, in the device for laser drilling a cigarette to prevent smoldering, the smoke inlet detection module includes a smoke inlet sensor and a first mounting bracket, the smoke inlet sensor is arranged on the first mounting bracket, a first clean air outlet is opened on the first mounting bracket, and the first clean air outlet is located at the sensing end of the smoke inlet sensor.

[0027] Furthermore, in the device for laser drilling of cigarettes to prevent smoldering, the smoke detection module includes a smoke sensor and a second mounting bracket, the smoke sensor is arranged on the second mounting bracket, the second mounting bracket is provided with a second clean air outlet, and the second clean air outlet is located at the sensing end of the smoke sensor.

[0028] Furthermore, in the device for laser punching cigarettes to prevent smoldering, the logic control module includes a phase pulse processing control board and a logic control unit, and the phase pulse processing control board is respectively communicatively connected with the smoke inlet detection module, the smoke outlet detection module and the logic control unit.

[0029] A device for laser punching holes in cigarettes to prevent smoldering, characterized in that it includes a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, a method for laser punching holes in cigarettes to prevent smoldering as described in any one of the above is implemented.

[0030] A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are configured to execute the method for laser punching of cigarettes to prevent smoldering as described in any one of the above.

[0031] Compared with the prior art, the present application provides a method, device, equipment and storage medium for laser drilling of cigarettes to prevent smoldering. The method can detect the number of cigarettes passing through the smoke inlet detection position and the number of cigarettes passing through the smoke outlet detection position to obtain the number of cigarettes remaining at the laser drilling position, thereby confirming whether there are cigarettes stuck at the laser drilling position, and stopping the laser drilling and sounding an alarm when it is determined that a cigarette is stuck, so that the staff can deal with related problems in a timely manner to prevent safety accidents caused by smoldering of cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A flow chart of the method for laser punching holes in cigarettes to prevent smoldering provided in this application.

[0033] Figure 2 for Figure 1 The flowchart of step S100 in the method of laser punching a cigarette to prevent smoldering is shown.

[0034] Figure 3 for Figure 1 The flowchart of step S200 in the method of laser punching a cigarette to prevent smoldering is shown.

[0035] Figure 4 A schematic diagram of the structure of the device for laser punching holes in cigarettes to prevent smoldering provided in this application.

[0036] Figure 5 for Figure 4Schematic diagram of the enlarged structure at point A in the middle.

[0037] Figure 6 for Figure 4 Schematic diagram of the structure of the smoke inlet detection module.

[0038] Figure 7 This is a structural block diagram of the device for laser punching holes in cigarettes to prevent smoldering provided in this application. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and effect of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Without further description, the elements, structures and features in one embodiment can also be beneficially combined with other embodiments.

[0040] During the laser drilling process of cigarettes, the cigarettes are set to pass through the smoke inlet detection position, laser drilling position and smoke outlet detection position in the processing line. Figure 1 The present application provides a method for laser punching of cigarettes to prevent smoldering, comprising the steps of:

[0041] S100, detecting cigarettes passing through the smoke inlet detection position and obtaining the number of cigarettes inlet

[0042] S200, detecting cigarettes passing through a smoke output detection position and obtaining the number of cigarettes output;

[0043] S300, calculating the difference between the amount of smoke entering and the amount of smoke exiting;

[0044] S400, determining whether the difference exceeds a preset value;

[0045] S500, if exceeded, the laser drilling will be stopped and an alarm will be issued;

[0046] S600: If not, continue laser drilling.

[0047] During the laser drilling process, the laser drilling position is the location of the laser focusing path, and the cigarette can complete the laser drilling process at the laser drilling position. However, due to various reasons, the cigarette may get stuck at the laser drilling position, or return to the laser drilling position after the laser drilling is completed and continue to be hit by the laser, causing the cigarette to smolder, posing a safety hazard.

[0048] By counting the number of cigarettes passing through the smoke inlet detection position and the number of cigarettes passing through the smoke outlet detection position and calculating the difference between the two, the number of cigarettes remaining at the laser punching position can be obtained.

[0049] Normally, the number of cigarettes temporarily staying at the laser drilling position is kept stable within a certain range, which can be estimated according to the transmission speed of the cigarettes, and the estimated result can be set to a preset value. When the difference does not exceed the preset value, it means that there are no cigarettes stuck at the laser drilling position, and the processing state can be maintained; when the difference exceeds the preset value, it means that there are cigarettes stuck at the laser drilling position, at which time the laser drilling can be stopped and an alarm can be issued to notify the staff to deal with the relevant problems in a timely manner.

[0050] In some embodiments, see Figure 2 , step S100 includes:

[0051] S110, transmitting cigarettes through the drum wheel, and detecting each cigarette slot passing through the smoke inlet detection position on the drum wheel through the smoke inlet sensor and confirming whether there is a cigarette in each cigarette slot;

[0052] S120, cumulatively counting the cigarettes passing through the smoke inlet detection position to obtain the number of cigarettes inlet.

[0053] Cigarettes are transported through a drum where they are laser punched. Figure 4 and Figure 5 The drum wheel 40 is a cylindrical structure, with a plurality of convexities 41 arranged in a circumferential manner on the surface, a cigarette groove is formed on the side of the convexity 41, and a vacuum adsorption hole can be opened in the cigarette groove to adsorb the cigarette 100 through the vacuum adsorption hole. Different drum wheels 40 can be arranged tangent to each other, and the opening and closing of the vacuum adsorption hole can be controlled by an air valve, so that the cigarette 100 can be transported from the upper drum wheel 40 to the lower drum wheel 40 after passing through the tangent intersection of two drum wheels 40.

[0054] In this embodiment, the drum wheel 40 rotates counterclockwise, and the smoke grooves on both sides of the protrusion 41 are divided into a smoke inlet groove and a smoke outlet groove, that is, the right side of the protrusion 41 is the smoke inlet groove, and the left side of the protrusion 41 is the smoke outlet groove; the laser drilling position is located at the top of the drum wheel 40, where a smoke wheel 42 is provided at a certain distance from the drum wheel 40 and also rotates counterclockwise.

[0055] During the laser drilling process, the cigarette 100 enters the drum wheel 40 from the right side of the drum wheel 40. At this time, each cigarette 100 is located in the smoke inlet groove on the right side of the protrusion. When the cigarette 100 rotates to the top of the drum wheel, under the interaction between the drum wheel 40 and the cigarette wheel 42, the cigarette 100 rolls clockwise on the surface of the drum wheel 40 to complete a 360-degree flip. During the flipping process, the laser can emit light from a suitable angle to form a circle of small holes at the filter tip of the cigarette 100, realizing the laser drilling process. When the cigarette 100 reaches the smoke outlet groove of the next protrusion 41, it stops rolling, continues to rotate with the drum wheel 40, and finally exits the drum wheel 40.

[0056] During the rolling process of the cigarette 100, an error may occur, resulting in the cigarette being thrown away. At this time, the cigarette 100 will break away from the drum wheel 40 and may remain under the laser focusing lens housing for a period of time, causing the laser to continuously irradiate a certain point of the retained cigarette 100, causing the temperature of this point to rise and produce smoldering. The cigarette 100 then falls into the waste cigarette box under the drum wheel 40, which may ignite the cigarette 100, tipping paper, filter segments, cigarette butts, etc. in the waste cigarette box, causing larger-scale smoldering or even producing open flames.

[0057] Therefore, before the cigarette 100 enters the punching position, a suitable smoke inlet detection position can be selected in the conveying direction of the drum wheel 40, that is, a smoke inlet sensor is set somewhere on the right side of the drum wheel 40 in this embodiment, and the cigarette passing through the smoke inlet detection position is detected by the smoke inlet sensor.

[0058] The smoke inlet sensor can use a laser sensor. The laser sensor works based on the principle of optical triangulation. Combined with a linear imager, it can accurately measure the position of the object in front. At the same time, the laser sensor is less affected by the environment, ultimately achieving accurate and stable measurement.

[0059] When the cigarette trough and the cigarette 100 pass in front of the laser sensor, the laser sensor can confirm the passage of the cigarette trough by detecting the protrusion 41, and the values ​​detected by the laser sensor will be obviously different in the two cases of whether there is a cigarette 100 in the cigarette trough. Therefore, it is also possible to confirm whether there is a cigarette 100 in the cigarette trough based on the actual detection value.

[0060] At the same time, the mechanical pulse signal of the drum wheel 40 can be collected when it rotates to obtain the rotation speed of the drum wheel 40, and then the speed of the smoke slot passing the smoke inlet detection position can be obtained, and the detection of the smoke inlet sensor can be fed back based on the speed to further improve the accuracy of the detection.

[0061] Furthermore, the cigarettes 100 on the drum 40 are usually double-length cigarettes 100, so smoke inlet sensors can be installed on the inner and outer tracks of the drum 40 respectively, so that the cigarettes 100 can be identified whether they are placed regularly or disorderly, thereby improving the detection accuracy.

[0062] When cigarettes 100 of different specifications are replaced, the size of the cigarettes 100 will change. At this time, the relative position of the smoke inlet sensor and the drum wheel 40 can be adjusted to change the sensing distance of the smoke inlet sensor so that the smoke inlet sensor can accurately sense the required number of cigarettes 100 to avoid missing or incorrect sensing.

[0063] In some embodiments, see Figure 3 , step S200 includes:

[0064] S210, transmitting cigarettes through the drum wheel, and detecting each cigarette slot passing through the smoke outlet detection position on the drum wheel through the smoke outlet sensor and confirming whether there is a cigarette in each cigarette slot;

[0065] S220, cumulatively counting the cigarettes passing through the smoke output detection position to obtain the number of cigarettes output.

[0066] After the cigarette 100 leaves the punching position, a suitable smoke inlet detection position can be selected in the conveying direction of the drum wheel 40, that is, in this embodiment, a smoke outlet sensor is set at a certain position on the left side of the drum wheel 40, and it is aligned with a suitable detection position to determine whether there is a cigarette slot passing through the detection position, and detect whether there is a cigarette 100 in the cigarette slot.

[0067] At the same time, the mechanical pulse signal of the drum wheel 40 can be collected when it rotates to obtain the rotation speed of the drum wheel 40, and then the speed of the smoke slot passing the smoke outlet detection position can be obtained, and the detection of the smoke outlet sensor can be fed back according to the speed to further improve the detection accuracy.

[0068] Similar to the smoke inlet sensor, the smoke outlet sensor may also be a laser sensor, and the smoke outlet sensors may also be installed on the inner and outer tracks of the drum 40, respectively, so that the cigarettes 100 can be identified whether they are placed regularly or disorderly.

[0069] When cigarettes 100 of different specifications are replaced, the size of the cigarettes 100 will change. At this time, the relative position of the smoke sensor and the drum 40 can be adjusted to change the sensing distance of the smoke sensor so that the smoke sensor can accurately sense the required number of cigarettes 100 to avoid missing or incorrect sensing.

[0070] In some embodiments, the method for laser punching of cigarettes to prevent smoldering provided in the present application further comprises the steps of:

[0071] S700, after laser drilling is stopped and an alarm is sounded, when laser drilling is performed again, the smoke inlet quantity and the smoke outlet quantity are reset to zero, and the smoke inlet quantity and the smoke outlet quantity are obtained again.

[0072] During the laser drilling process, the number of cigarettes entering and exiting is continuously counted until the processing is completed and the laser drilling is stopped, or the laser drilling is stopped due to an alarm. The staff can check whether there are cigarettes stuck at the laser drilling position after the machine is stopped. And after restarting the machine for laser drilling, it is assumed that there are no cigarettes stuck at the laser drilling position, and the number of cigarettes entering and exiting is re-counted, so that the detection process will not affect the normal processing process.

[0073] In summary, the method for preventing smoldering by laser punching of cigarettes provided in the present application can, when the cigarette is moving at high speed, detect and identify the phase relationship between the cigarette and the cigarette slot before laser punching, and divide the phase record, and then detect the phase relationship between the cigarette and the cigarette slot after laser punching, and divide the phase record, and process the phase relationship of the cigarettes passing through the smoke inlet detection position and the smoke outlet detection position in combination with the rotation speed of the drum wheel, so as to determine whether there are cigarettes staying at the punching position, thereby effectively avoiding the smoldering of the cigarette.

[0074] See also Figure 4 The present application also provides a device for laser punching of cigarettes to prevent smoldering, comprising:

[0075] The smoke inlet detection module 10 is used to detect cigarettes passing through the smoke inlet detection position;

[0076] The smoke detection module 20 is used to detect cigarettes passing through the smoke detection position;

[0077] The logic control module 30 is used to calculate the smoke intake amount, the smoke output amount and the difference between the smoke intake amount and the smoke output amount according to the detection results of the smoke intake detection module and the smoke output detection module, and judge whether the difference exceeds the preset value; if so, stop the laser drilling and alarm; if not, continue the laser drilling.

[0078] Among them, the smoke inlet detection module 10 is set before the laser drilling position, and can send a smoke inlet detection signal to the logic control module 30; the smoke outlet detection module 20 is set after the laser drilling position, and can send a smoke outlet detection signal to the logic control module 30, and the logic control module 30 processes the relevant signals.

[0079] At the same time, the device for laser punching cigarettes to prevent smoldering may also include a pulse detection module, which obtains the mechanical pulse signal of the drum wheel 40, thereby obtaining the rotation speed of the drum wheel 40, thereby assisting in determining the amount of smoke entering and the amount of smoke leaving.

[0080] In some embodiments, please combine Figure 4-Figure 6 The smoke inlet detection module 10 includes a first mounting bracket 11 and a smoke inlet sensor 12. The smoke inlet sensor 12 is disposed on the first mounting bracket 11 and is aligned with a preset smoke inlet detection position.

[0081] Specifically, cigarettes are transmitted through the drum wheel 40, and the first mounting bracket 11 is arranged on one side of the drum wheel 40. The smoke inlet detection position is a suitable position selected in the smoke inlet direction of the drum wheel 40; the smoke inlet sensor 12 can be a laser sensor, and the number can be set to two, which are respectively aimed at the inner and outer lanes of the drum wheel 40, so that the cigarettes can be identified whether they are placed regularly or disorderly.

[0082] Furthermore, a first clean air port 111 is provided on the mounting bracket 11, and the first clean air port 111 is located at the sensing end of the smoke inlet sensor. The first clean air port 111 can blow away dust near the sensing end of the smoke sensor 12 by blowing air, thereby ensuring the detection accuracy of the smoke inlet sensor 12.

[0083] In some embodiments, the smoke detection module 20 includes a second mounting bracket and a smoke sensor. The smoke sensor is disposed on the mounting bracket and is aligned with a preset smoke detection position.

[0084] Specifically, the second mounting bracket is arranged on the other side of the drum wheel 40, and the smoke output detection position is a suitable position selected in the smoke output direction of the drum wheel 40; the smoke output sensor can be a laser sensor, and the number can be set to two, respectively aimed at the inner and outer lanes of the drum wheel 40, so that the cigarettes 100 can be identified whether they are placed regularly or disorderly.

[0085] In addition, a second cleaning air outlet can be provided on the second mounting bracket, and the second cleaning air outlet is located at the sensing end of the smoke sensor. The second cleaning air outlet can blow away dust near the sensing end of the smoke sensor to ensure the detection accuracy of the smoke sensor.

[0086] In some embodiments, the logic control module 30 includes a phase pulse processing control board 31 and a logic control unit 32 , and the phase pulse processing control board 31 is communicatively connected with the smoke inlet detection module 10 , the smoke outlet detection module 20 and the logic control unit 32 , respectively.

[0087] The phase pulse processing control board 31 may include an FPGA main control chip, a high-speed signal conversion circuit and a communication port. After the high-speed pulse signals emitted by the smoke inlet detection module 10 and the smoke outlet detection module 20 enter the phase pulse processing control board 31, they are first converted by the high-speed signal conversion circuit and then sent to the FPGA main control chip. The FPGA calculates and processes the converted signals, and the processing results are sent to external devices via the communication port.

[0088] The logic control unit 32 may include a PLC (Programmable Logic Controller), and the PLC determines whether the difference between the number of smoke in and the number of smoke out exceeds a preset value. In addition, the device for laser punching of cigarettes 100 to prevent smoldering may also include a human-machine interactive touch screen 50, through which a staff member may input various parameters into the PLC, such as the specific size of the preset value.

[0089] In summary, the phase pulse processing control board 31 processes the collected signals from the smoke inlet sensor 12 and the smoke outlet sensor 21 and the pulse signal of the machine itself, and cooperates with the parameter setting of the human-machine interaction touch screen 50 and the logic control unit 32 to establish an independent operation system. The system sends an alarm signal based on the processing results, prompting the staff to observe whether there are cigarettes remaining in the laser channel at the laser drilling position. This system will not reduce the effective working rate of the equipment, and at the same time reduce the workload of the operators.

[0090] The present application also provides a non-transitory computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the method for laser punching of cigarettes to prevent smoldering in the above-mentioned embodiment.

[0091] See also Figure 7 The present application also provides a device for laser punching of cigarettes to prevent smoldering, comprising: at least one central processor A1 (processor), Figure 7 Take a central processor A1 as an example; memory A2 (memory); and may also include a display screen A3, a communications interface (Communications Interface) and a bus. The central processor A1, the memory A2, the display screen A3 and the communications interface may communicate with each other through the bus; the display screen A3 is configured to display the user operation interface preset in the initial setting mode, and the display screen A3 may also display the parameter control window; the communications interface may transmit information; the central processor A1 may call the logic instructions in the memory A2 to execute the method in the above embodiment.

[0092] The central processor A1 can be a central processing unit (CPU), and the processor A1 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0093] In addition, the logic instructions in the above-mentioned memory A2 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent workpiece.

[0094] The memory A2 is a computer-readable storage medium that can be configured to store software programs, computer executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present application. The CPU A1 executes functional applications and data processing by running the software programs, instructions or modules stored in the memory A2, that is, implementing the methods in the above embodiments.

[0095] The memory A2 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory A2 may include a high-speed random access memory and may also include a non-volatile memory.

[0096] All or part of the steps of the above embodiments may be completed by hardware, or by a program to instruct the relevant hardware to complete them. The program may be stored in a computer-readable storage medium. The storage medium may be a non-transitory storage medium, including a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc., and may be a variety of media that can store program codes, or may be a transient storage medium.

[0097] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and application concept of the present application, and all these changes or substitutions should fall within the protection scope of the claims attached to the present application.

Claims

1. A method for laser punching of cigarettes to prevent smoldering, characterized in that: It is assumed that the cigarette passes through the smoke inlet detection position, the laser drilling position and the smoke outlet detection position in sequence during the transmission process. The method includes the following steps: Detect cigarettes passing through the smoke inlet detection position and obtain the number of cigarettes inlet; Detect cigarettes passing through the smoke detection position and obtain the number of cigarettes discharged; Calculate the difference between the amount of smoke entering and the amount of smoke exiting; Determine whether the difference exceeds a preset value; If it exceeds, the laser drilling will be stopped and an alarm will be issued; If it does not exceed, continue with laser drilling; The step of detecting cigarettes passing through the smoke inlet detection position and obtaining the number of cigarettes inlet comprises: Accumulate and count the cigarettes that pass through the smoke inlet detection position to obtain the number of cigarettes inlet; The step of detecting cigarettes passing through the smoke output detection position and obtaining the number of cigarettes output comprises: The cigarettes passing through the smoke output detection position are counted cumulatively to obtain the number of cigarettes output.

2. The method for preventing smoldering by laser drilling of cigarettes according to claim 1, characterized in that: The step of detecting cigarettes passing through the smoke inlet detection position and obtaining the number of cigarettes inlet also includes: Cigarettes are transmitted through the drum wheel, and the smoke inlet sensor detects each cigarette slot passing through the smoke inlet detection position on the drum wheel and confirms whether there is a cigarette in each cigarette slot.

3. The method for preventing smoldering by laser drilling of cigarettes according to claim 1, characterized in that: The step of detecting cigarettes passing through the smoke output detection position and obtaining the number of cigarettes output also includes: Cigarettes are transmitted through the drum wheel, and each cigarette slot passing through the smoke outlet detection position on the drum wheel is detected by the smoke outlet sensor to confirm whether there is a cigarette in each cigarette slot.

4. The method for preventing smoldering by laser drilling of cigarettes according to claim 1, characterized in that: Also includes steps; After the laser drilling is stopped and an alarm is sounded, when the laser drilling is resumed, the smoke inlet quantity and the smoke outlet quantity are reset to zero, and the smoke inlet quantity and the smoke outlet quantity are obtained again.

5. A device for laser punching of cigarettes to prevent smoldering, characterized in that: It is assumed that the cigarette passes through the smoke inlet detection position, the laser drilling position and the smoke outlet detection position in sequence during the transmission process. The device includes: The smoke inlet detection module is used to detect cigarettes passing through the smoke inlet detection position, and to accumulate and count the cigarettes passing through the smoke inlet detection position to obtain the number of cigarettes inlet; The smoke detection module is used to detect the cigarettes passing through the smoke detection position, and to accumulate and count the cigarettes passing through the smoke detection position to obtain the number of cigarettes discharged; The logic control module is used to calculate the smoke inlet quantity, smoke outlet quantity and the difference between the smoke inlet quantity and the smoke outlet quantity, and determine whether the difference exceeds a preset value; if so, the laser drilling is stopped and an alarm is sounded; if not, the laser drilling is continued.

6. The device for laser punching of cigarettes to prevent smoldering according to claim 5, characterized in that: The smoke inlet detection module includes a smoke inlet sensor and a first mounting bracket. The smoke inlet sensor is arranged on the first mounting bracket. The first mounting bracket is provided with a first clean air outlet, and the first clean air outlet is located at the sensing end of the smoke inlet sensor.

7. The device for laser punching of cigarettes to prevent smoldering according to claim 5, characterized in that: The smoke detection module includes a smoke sensor and a second mounting bracket, the smoke sensor is arranged on the second mounting bracket, a second clean air outlet is opened on the second mounting bracket, and the second clean air outlet is located at the sensing end of the smoke sensor.

8. The device for laser punching of cigarettes to prevent smoldering according to claim 5, characterized in that: The logic control module comprises a phase pulse processing control board and a logic control unit. The phase pulse processing control board is respectively connected to the smoke inlet detection module, the smoke outlet detection module and the logic control unit for communication.

9. A device for laser punching holes in cigarettes to prevent smoldering, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the method for preventing smoldering by laser punching of cigarettes as claimed in any one of claims 1 to 4 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are configured to execute the method for laser perforating cigarettes to prevent smoldering as described in any one of claims 1 to 4.

Images