CN117508812A - A tracking system and printing system for cigarette rod chartering machines - Google Patents

Abstract

The invention discloses a tracking system and a printing system for a cigarette strip packing machine, comprising a first proximity switch, a first displacement sensor, a second displacement sensor, a first position sensor and a controller; the first proximity switch is arranged at the inlet of the cigarette case lifting channel, the first displacement sensor is arranged at the push rod of the first cigarette bar conveying channel, and the second displacement sensor is arranged at the push rod of the second cigarette bar conveying channel; the first position sensor is arranged in front of the laser head on the cigarette bar lifting channel along the conveying direction of the cigarette bar lifting channel and is used for being in communication connection with the laser head; the controller is in communication connection with the first proximity switch, the first displacement sensor, the second displacement sensor and the first position sensor. The real-time monitoring in the cigarette case and the cigarette bar conveying process is realized, the condition that the associated two-dimensional code is disordered under the condition that the cigarette is clamped or an operator takes out in the cigarette bar conveying process is avoided, and the accuracy of online association of the cigarette case and the cigarette bar is ensured.

Description

A tracking system and printing system for cigarette rod chartering machines

Technical field

The present application relates to the technical field of cigarette production equipment, and in particular, to a tracking system and a printing system for a cigarette rod packaging machine.

Background technique

Since tobacco-related export products require QR codes or barcodes on boxes, strips, and packages for product traceability, the current strip wrapping machine in the production workshop does not have the function of online printing and online association of QR codes, so it is currently used The laser head for online printing of QR codes is installed on the lifting channel at the rear of the bar packaging machine for coding on cigarette bars. During the production process, during the transportation of small boxes of cigarettes and the transportation of cigarette rods, cigarettes may be caught or taken out by the operator. If the rejected small boxes or cigarette rods cannot be detected, it will cause the two-dimensional structure of the rods and boxes. The code association is disordered, and it is necessary to disassemble the disordered cigarette rod to ensure that the QR code is assigned again, which affects production efficiency and wastes production resources.

Contents of the invention

In order to solve at least one aspect of the above problems, the present invention provides a tracking system for a cigarette rod packaging machine, which is implemented by arranging a proximity switch, a displacement sensor and a position sensor on the conveying channel of the cigarette rod packaging machine, and cooperating with the tracking unit in the controller. Real-time monitoring of cigarette boxes and cigarette rods during transportation avoids the confusion of associated QR codes caused by cigarette inclusion or removal by operators during the cigarette rod transportation process, ensuring the accuracy of the online association of cigarette boxes and cigarette rods sex.

The present invention is realized through the following technical solutions: a tracking system for cigarette rod chartering machines, including a first proximity switch, a first displacement sensor, a second displacement sensor, a first position sensor and a controller; the first proximity switch is installed on the cigarette The entrance of the box lifting channel is used to detect the cigarette boxes passing by the entrance of the cigarette box lifting channel; the first displacement sensor is installed at the push rod on the first cigarette rod conveying channel and is used to detect the passage of cigarette rods; the second displacement sensor The sensor is installed at the push rod on the second cigarette rod conveying channel and is used to detect the passage of the cigarette rod; the first position sensor is installed in front of the laser head along the conveying direction of the cigarette rod lifting channel and is used to detect the passing of the cigarette rod. In place information; the first position sensor is used to communicate with the laser head; the controller is connected to the first proximity switch, the first displacement sensor, the second displacement sensor, the first position sensor, the cigarette box lifting channel or the carton packaging station. The first smart camera and the laser head are both connected through communication; the controller includes a counting unit and a tracking unit; the counting unit is used to count the number of times the first proximity switch is triggered, and transmits a signal to the first smart camera when the number of times the first proximity switch is triggered reaches a preset value. ; The tracking unit is used to receive signals from the first displacement sensor, the second displacement sensor, and the first position sensor to track the position of the cigarette rod. When the first displacement sensor, the second displacement sensor, or the first position sensor does not detect a certain cigarette rod, The signal is transmitted to the tracking unit, and the tracking unit feeds back to the printing system to cancel the printing of the cigarette bar code.

Preferably, a second proximity switch is also included; the second proximity switch is installed in front of the first smart camera along the transport direction of the strip packaging machine, and the second proximity switch is used for communication connection with the first smart camera.

Preferably, the second proximity switch is installed at the stacking height of five cigarette boxes at the exit of the cigarette box lifting channel.

Preferably, there are multiple first displacement sensors, and the multiple first displacement sensors are respectively installed at multiple push rods on the first cigarette rod conveying channel, and the multiple first displacement sensors are all connected with the tracking in the controller. Unit communication connection.

Preferably, the plurality of second displacement sensors are provided, and the plurality of second displacement sensors are respectively installed at the plurality of push rods on the second cigarette rod conveying channel. The plurality of second displacement sensors are all connected with the tracking in the controller. Unit communication connection.

Preferably, a second position sensor is also included. The second position sensor is installed on the cigarette rod lifting channel in front of the second smart camera along its conveying direction. The second position sensor is communicatively connected with the tracking unit and is used to communicate with the second smart camera. Communication connection.

Preferably, a third proximity switch is also included; the third proximity switch is installed at the stacking height of ten cigarette boxes on the carton packaging station, and the third proximity switch is communicatively connected with the tracking unit and the control system of the carton packaging machine.

This application also provides a printing system for cigarette rod packaging machines, including any one of the above-mentioned tracking systems for cigarette rod packaging machines, a first smart camera, a laser head, and a controller that also includes a QR code association unit and printing unit; the first smart camera is installed on the cigarette box lifting channel or the carton packaging station, and the first smart camera is communicatively connected with the counting unit and the QR code associated unit, and is used to start the first smart camera according to the counting unit Scan the code on the cigarette box and transmit the scanned code information to the QR code association unit; the laser head is installed on the cigarette rod lifting channel, and the laser head is communicatively connected to the first position sensor and the printing unit for controlling the first position according to the first position. The sensor's signal starts the laser head to print the barcode in the printing unit online; the QR code association unit is used to generate a barcode based on the received scanned code information; the QR code association unit is communicated with the tracking unit and the printing unit respectively, and is used to generate the barcode The signal is transmitted to the tracking unit to start the tracking unit and when a cigarette rod is not detected, the associated information of the cigarette rod in the QR code association unit is canceled, and the generated barcode is passed to the printing unit for queuing printing; the printing unit uses After receiving the barcode generated by the QR code association unit, it queues up and controls the laser head printing; the printing unit communicates with the tracking unit, and is used to cancel the queue of the barcode corresponding to the cigarette rod in the printing unit when a certain cigarette rod is not detected.

Preferably, it also includes a second smart camera; the second smart camera is installed on the cigarette rod lifting channel behind the laser head along its conveying direction, and the second smart camera is communicatively connected with the QR code association unit for scanning the cigarette rod. code and verification.

Preferably, the tracking system includes a second position sensor, and the second position sensor is communicatively connected with the second smart camera.

A tracking system and printing system for cigarette rod packaging machines of the present invention have the following beneficial effects:

In this application, a first proximity switch is set at the entrance of the cigarette box lifting channel to detect that the cigarette box enters the cigarette box lifting channel, and a second proximity switch is set at the height of the five cigarette boxes at the exit of the cigarette box lifting channel to detect whether there are five cigarette boxes stacked. The carton packaging station is equipped with a third proximity switch to detect whether there are ten cigarette boxes stacked. When a cigarette box appears to contain cigarettes or a worker takes it out, the smart camera will not start or the carton packaging station will not start. The first cigarette rod conveying channel and the second cigarette rod conveying channel are respectively provided with a number of first displacement sensors and a number of second displacement sensors. The real-time position of the cigarette rod can be confirmed according to the number of the displacement sensor. The real-time position of the cigarette rod lifting channel is A first position sensor is set in front of the laser head to detect whether the cigarette rod reaches the laser head. When a cigarette rod appears to be pinched or taken out by a staff member, feedback is sent to the tracking unit of the controller, and the controller cancels the printing of the barcode corresponding to the cigarette rod. Achieve real-time monitoring of cigarette boxes and cigarette rods during transportation, avoid the confusion of associated QR codes caused by cigarette inclusion or removal by operators during the transportation of cigarette rods, and ensure the online association of cigarette boxes and cigarette rods. accuracy.

Description of drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference may be made to the embodiments illustrated in the accompanying drawings. Like reference numbers in the drawings refer to like parts. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate preferred embodiments of the present invention without any limitation on the scope of the present invention, and the various components in the drawings are not drawn to scale.

Figure 1 shows a block diagram of a printing system for a cigarette rod packaging machine according to an embodiment of the present invention;

Figure 2 shows a displacement sensor installation circuit diagram of a printing system for a cigarette rod packaging machine according to an embodiment of the present invention;

Figure 3 shows a layout diagram of a cigarette rod lifting channel of a printing system for a cigarette rod packaging machine according to an embodiment of the present invention.

Explanation of reference symbols:

11. Cigarette box lifting channel; 12. Carton packaging station; 13. First cigarette rod conveying channel; 14. Plastic oil film packaging station; 15. Second cigarette rod conveying channel; 16. Cigarette rod lifting channel; 2. The first proximity switch; 3. The second proximity switch; 4. The third proximity switch; 5. The first displacement sensor; 6. The second displacement sensor; 7. The first position sensor; 8. The second position sensor; 9. Control 91. Counting unit; 92. Tracking unit; 93. QR code association unit; 94. Printing unit; 101. First smart camera; 102. Laser head; 103. Second smart camera; 104. Power supply.

Detailed ways

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the present disclosure are included to facilitate understanding and should be considered to be exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and constructions are omitted from the following description for clarity and conciseness.

As used herein, the term "include" and its variations mean an open inclusion, ie, "including but not limited to." Unless otherwise stated, the term "or" means "and/or". The term "based on" means "based at least in part on." The terms "one example embodiment" and "an embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," etc. may refer to different or the same object. Other explicit and implicit definitions may be included below.

In order to at least partially solve one or more of the above problems and other potential problems, one embodiment of the present disclosure proposes a tracking system for a cigarette rod packaging machine, including a first proximity switch 2, a first displacement sensor 5, The second displacement sensor 6, the first position sensor 7 and the controller 9; the first proximity switch 2 is installed at the entrance of the cigarette box lifting channel 11 and is used to detect the cigarette box passing by the entrance of the cigarette box lifting channel 11; the first displacement sensor 5 is installed at the push rod on the first cigarette rod conveying channel 13, and is used to detect the passage of cigarette rods; the second displacement sensor 6 is installed at the push rod on the second cigarette rod conveying channel 15, and is used to detect the passage of cigarette rods. The first position sensor 7 is installed in front of the laser head 102 along the transmission direction of the cigarette rod lifting channel 16, and is used to detect the in-place information of the cigarette rod; the first position sensor 7 is used to communicate with the laser head 102; The controller 9 cooperates with the first proximity switch 2, the first displacement sensor 5, the second displacement sensor 6, the first position sensor 7, the first smart camera 101 and the laser head on the cigarette box lifting channel 11 or the carton packaging station 12 102 are all connected by communication; the controller 9 includes a counting unit 91 and a tracking unit 92; the counting unit 91 is used to count the number of times the first proximity switch 2 is triggered, and when the number of times is triggered reaches a preset value, a signal is transmitted to the first smart camera 101 ; The tracking unit 92 is used to receive signals from the first displacement sensor 5, the second displacement sensor 6, and the first position sensor 7 to track the position of the cigarette rod. When the first displacement sensor 5 or the second displacement sensor 6 or the first position sensor 7 If a certain cigarette rod is not detected, a signal is sent to the tracking unit 92, and the tracking unit 92 feeds back to the printing system to cancel the printing of the barcode of the cigarette rod.

Specifically, as shown in Figure 1, the prior art carton wrapping machine includes a cigarette box conveyor belt, a cigarette box lifting channel 11, a carton packaging station 12, a first cigarette carton conveying channel 13, and a plastic oil film packer arranged in sequence. Station 14, the second cigarette rod conveying channel 15 and the cigarette rod lifting channel 16, as well as the first smart camera 101 installed on the cigarette box lifting channel 11 or the carton packaging station 12 for scanning the QR code on the cigarette box. The laser head 102 on the cigarette rod lifting channel 16 is used to print barcodes on the cigarette rods online.

The tracking system of this application includes a first proximity switch 2, a first displacement sensor 5, a second displacement sensor 6, a first position sensor 7, a power supply 104 and a controller 9. The controller 9, the first smart camera 101 and the laser head 102 are all connected by communication, and the controller 9 includes a counting unit 91 and a tracking unit 92; the first proximity switch 2, the first displacement sensor 5, the second displacement sensor 6, and the first position sensor 7 are preferably photoelectric sensors; the first proximity switch 2 is installed at the entrance of the cigarette box lifting channel 11 and is used to detect the cigarette boxes passing by the entrance of the cigarette box lifting channel 11. The first proximity switch 2 is communicatively connected with the counting unit 91. When the first proximity switch 2 is triggered, smoke is detected. When the box passes through the entrance of the cigarette box lifting channel 11, it transmits a signal to the counting unit 91, and the counting unit 91 counts. When the preset value is reached, the counting unit 91 transmits a signal to the first smart camera 101. In this embodiment, the preset value Set to 5, the first smart camera 101 starts scanning the stacked cigarette boxes. In some embodiments, the tracking system of the present application also includes a second proximity switch 3. The second proximity switch 3 is preferably a photoelectric sensor; the second proximity switch 3 is installed in front of the first smart camera 101 along the conveying direction of the strip charter machine. At, the second proximity switch 3 is used to communicate with the first smart camera 101. Preferably, the second proximity switch 3 is installed at the stacking height of five cigarette boxes at the exit of the cigarette box lifting channel 11. When the five stacked cigarette boxes When passing through the exit of the cigarette box lifting channel 11, the second proximity switch 3 is triggered to transmit a signal to the first smart camera 101, and the first smart camera 101 starts to scan the stacked cigarette boxes, ensuring that when the first smart camera 101 scans the code It's five cigarette boxes stacked on top of each other. In other embodiments, the tracking system of the present application also includes a third proximity switch 4. The third proximity switch 4 is preferably a photoelectric sensor. The third proximity switch 4 is installed on the ten cigarette boxes at the carton packaging station 12. At the stacking height, the third proximity switch 4 is communicatively connected to the tracking unit 92 and the control system of the carton packaging machine. When the stacked ten cigarette boxes arrive at the carton packaging station 12, the third proximity switch 4 is triggered to transmit a signal to the tracking unit. Unit 92 and the control system of the carton packaging machine. The carton packaging station 12 of the carton packaging machine packs ten cigarette boxes into cigarette sticks, and the tracking unit 92 starts tracking.

As shown in Figure 2, the first displacement sensor 5 is installed at the push rod on the first cigarette rod conveying channel 13 for detecting the passage of the cigarette rod. The first displacement sensor 5 is communicatively connected with the tracking unit 92; preferably, A plurality of first displacement sensors 5 are provided, and the plurality of first displacement sensors 5 are respectively installed at the plurality of push rods on the first cigarette rod conveying channel 13 . The plurality of first displacement sensors 5 are all communicatively connected with the tracking unit 92 . The second displacement sensor 6 is installed at the push rod on the second cigarette rod conveying channel 15 for detecting the passage of the cigarette rod. The second displacement sensor 6 is communicatively connected with the tracking unit 92; preferably, the second displacement sensor 6 is provided There are multiple second displacement sensors 6 respectively installed at multiple push rods on the second cigarette rod conveying channel 15 , and the multiple second displacement sensors 6 are all communicatively connected with the tracking unit 92 in the controller 9 . It is possible to determine the real-time position of the cigarette rod based on the cigarette rod number, the push rod position and the number of the first displacement sensor 5 or the second displacement sensor 6. When the first displacement sensor 5 or the second displacement sensor 6 or the first position sensor 7 does not When a certain cigarette rod is detected, a signal is transmitted to the tracking unit 92, and the tracking unit 92 feeds back to the printing system to cancel the printing of the barcode of the cigarette rod.

As shown in Figure 3, the first position sensor 7 is installed in front of the laser head 102 along the conveying direction of the cigarette rod lifting channel 16 for detecting the position information of the cigarette rod. The first position sensor 7 is connected to the tracking unit 92 through communication and Used to communicate with the laser head 102. When the cigarette stick triggers the first position sensor 7, the first position sensor 7 transmits a signal to the tracking unit 92 and the laser head 102, and the laser head 102 starts online printing; for some stick machines, the cigarette A second smart camera 103 is installed behind the laser head 102 of the cigarette rod lifting channel 16. The tracking system of this application also includes a second position sensor 8. The second position sensor 8 is installed on the second position of the cigarette rod lifting channel 16 along its conveying direction. In front of the smart camera 103, the second position sensor 8 is communicatively connected with the tracking unit 92 and is used to communicate with the second smart camera 103. When the cigarette rod with the barcode printed triggers the second position sensor 8, the second position sensor 8 transmits The signal is sent to the tracking unit 92 and the second smart camera 103, and the second smart camera 103 starts the code scanning verification.

The first proximity switch 2, the second proximity switch 3, the third proximity switch 4, the first displacement sensor 5, the second displacement sensor 6, the first position sensor 7 and the third position sensor are all connected in a three-wire system, and are all connected to the power supply. 104 electrical connection.

This application also provides a printing system for a cigarette rod packaging machine, including any of the above-mentioned tracking systems for a cigarette rod packaging machine, a first smart camera 101, a laser head 102, and the controller 9 also includes QR code association unit 93 and printing unit 94; the first smart camera 101 is installed on the cigarette box lifting channel 11 or the carton packaging station 12. Preferably, the first smart camera 101 is installed on the fifth exit of the cigarette box lifting channel 11. At the stacking height of the cigarette packs, the first smart camera 101 is communicatively connected to both the counting unit 91 and the QR code association unit 93, and is used to start the first smart camera 101 to scan the cigarette packs according to the counting unit 91, and scan the QR code. The information is transferred to the QR code association unit 93; in some embodiments, the tracking system includes a second proximity switch 3, which is communicatively connected to the first smart camera 101; the laser head 102 is installed on the cigarette rod lifting channel 16 , the laser head 102 is communicatively connected to both the first position sensor 7 and the printing unit 94, and is used to start the laser head 102 to print the barcode in the printing unit 94 online according to the signal of the first position sensor 7; preferably, as shown in Figure 3, The first position sensor 7 is installed at the seventh height of the cigarette rod lifting channel 16, and the laser head 102 is installed near the top of the first position sensor 7; the printing system of this application also includes a second smart camera 103, and the tracking system includes The second position sensor 8 and the second smart camera 103 are installed on the cigarette rod lifting channel 16 behind the laser head 102 along the conveying direction. The second position sensor 8 is preferably installed at the ninth height of the cigarette rod lifting channel 16. The laser The head 102 is installed near the top of the second position sensor 8, and the second smart camera 103 is communicatively connected with the second position sensor 8 and the QR code association unit 93 for scanning and verifying the cigarette rod.

The two-dimensional code association unit 93 is used to generate a barcode according to the received scanned code information; the two-dimensional code association unit 93 is communicatively connected with the tracking unit 92 and the printing unit 94, and is used to transmit the signal of the generated barcode to the tracking unit 92 to start tracking. Unit 92 and when a certain cigarette rod is not detected, cancel the associated information of the cigarette rod in the QR code association unit 93, and transfer the generated barcode to the printing unit 94 for queue printing; the printing unit 94 is used to receive the QR code The barcodes generated by the correlation unit 93 are queued and controlled by the laser head 102 to print; the printing unit 94 is communicatively connected with the tracking unit 92, and is used to cancel the queuing of the barcode corresponding to the cigarette rod in the printing unit 94 when the cigarette rod is not detected.

The embodiments of the present disclosure have been described above. The above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the text.

Claims (10)

1. A tracking system for cigarette rod chartering machines, characterized by: including a first proximity switch (2), a first displacement sensor (5), a second displacement sensor (6), a first position sensor (7) and controller(9); The first proximity switch (2) is installed at the entrance of the cigarette box lifting channel (11) and is used to detect the cigarette box passing by the entrance of the cigarette box lifting channel (11); The first displacement sensor (5) is installed at the push rod on the first cigarette rod conveying channel (13) and is used to detect the passage of the cigarette rod; The second displacement sensor (6) is installed at the push rod on the second cigarette rod conveying channel (15) and is used to detect the passage of the cigarette rod; The first position sensor (7) is installed in front of the laser head (102) along the transmission direction of the cigarette rod lifting channel (16), and is used to detect the position information of the cigarette rod; the first position sensor (7) is used to communicate with the laser head (102) Communication connection; The controller (9) and the first proximity switch (2), the first displacement sensor (5), the second displacement sensor (6), the first position sensor (7), the cigarette box lifting channel (11) or the carton packer The first smart camera (101) and the laser head (102) on the position (12) are both communicatively connected; the controller (9) includes a counting unit (91) and a tracking unit (92); the counting unit (91) is used to measure the third The number of triggers of a proximity switch (2). When the number of triggers reaches a preset value, a signal is transmitted to the first smart camera (101); the tracking unit (92) is used to receive the first displacement sensor (5) and the second displacement. The signals of the sensor (6) and the first position sensor (7) track the position of the cigarette rod. 2. A tracking system for cigarette rod chartering machines according to claim 1, characterized by: further comprising a second proximity switch (3); the second proximity switch (3) is installed on the first smart camera (101) At the front along the conveying direction of the strip packaging machine, the second proximity switch (3) is used for communication connection with the first smart camera (101). 3. A tracking system for cigarette rod chartering machines according to claim 2, characterized in that: the second proximity switch (3) is installed at the stacking height of five cigarette boxes at the outlet of the cigarette box lifting channel (11). at. 4. A tracking system for cigarette rod chartering machines according to claim 1, characterized in that: the first displacement sensors (5) are provided with a plurality of first displacement sensors (5) respectively installed on At the plurality of push rods on the first cigarette rod conveying channel (13), a plurality of first displacement sensors (5) are communicatively connected with the tracking unit (92) in the controller (9). 5. A tracking system for cigarette rod chartering machines according to claim 1, characterized in that: the second displacement sensors (6) are provided with a plurality of second displacement sensors (6), and the plurality of second displacement sensors (6) are respectively installed on At the plurality of push rods on the second cigarette rod conveying channel (15), the plurality of second displacement sensors (6) are communicatively connected with the tracking unit (92) in the controller (9). 6. A tracking system for cigarette rod chartering machines according to claim 1, characterized in that: it also includes a second position sensor (8), and the second position sensor (8) is installed in the cigarette rod lifting channel (16) In front of the second smart camera (103) along its transmission direction, the second position sensor (8) is communicatively connected with the tracking unit (92) and is used for communication with the second smart camera (103). 7. A tracking system for cigarette rod chartering machines according to claim 1, characterized by: further comprising a third proximity switch (4); the third proximity switch (4) is installed at the rod box packaging station (12 ), the third proximity switch (4) is communicatively connected to both the tracking unit (92) and the control system of the pack machine at the stacking height of ten cigarette boxes. 8. A printing system for cigarette rod packaging machines, characterized by: comprising a tracking system for cigarette rod packaging machines according to any one of claims 1 to 7, and a first smart camera (101) and a laser head (102), the controller (9) also includes a QR code association unit (93) and a printing unit (94); The first smart camera (101) is installed on the cigarette box lifting channel (11) or the carton packaging station (12). The first smart camera (101), the counting unit (91) and the QR code association unit (93) are both Communication connection, used to start the first smart camera (101) to scan the cigarette box according to the counting unit (91), and transmit the scanned code information to the QR code association unit (93); The laser head (102) is installed on the cigarette rod lifting channel (16). The laser head (102) is communicatively connected with the first position sensor (7) and the printing unit (94), and is used for printing according to the first position sensor (7). The signal starts the laser head (102) to print online the barcode in the printing unit (94); The QR code association unit (93) is used to generate a barcode according to the received scanned code information; the QR code association unit (93) is communicatively connected to the tracking unit (92) and the printing unit (94) respectively, and is used to generate the barcode signal Passed to the tracking unit (92) to start the tracking unit (92) and when a cigarette rod is not detected, cancel the associated information of the cigarette rod in the QR code association unit (93), and pass the generated barcode to the printing unit ( Queue printing is performed in 94); the printing unit (94) is used to receive the barcode generated by the QR code association unit (93) for queuing and control the laser head (102) to print; the printing unit (94) is communicated with the tracking unit (92) , used to cancel the queue of the barcode corresponding to the cigarette rod in the printing unit (94) when a certain cigarette rod is not detected. 9. A printing system for cigarette rod chartering machines according to claim 8, characterized in that: it also includes a second smart camera (103); the second smart camera (103) is installed in the cigarette rod lifting channel (16) Behind the laser head (102) along its transmission direction, the second smart camera (103) is communicatively connected to the QR code association unit (93) for scanning and verifying the cigarette stick. 10. A printing system for cigarette rod packaging machines according to claim 9, characterized in that: the tracking system includes a second position sensor (8), a second position sensor (8) and a second smart camera. (103) Communication connection.