阅读说明：本技术 一种利用烟支自动监测数据进行烟机故障预判断的方法 (Method for pre-judging cigarette machine fault by using cigarette automatic monitoring data ) 是由 沈宗毅 陈圣 徐国现 祁林 于 2020-12-22 设计创作，主要内容包括：本发明涉及一种利用烟支自动监测数据进行烟机故障预判断的方法,利用自动检测系统,实现自动取样、自动检测的在线进行烟支物理指标的检测,并且通过物理指标的检测数据,对卷烟机的故障进行预判断,并及时报警给操作人员或维修人员对卷烟机的相关部分进行维修或调整,以减少不合格烟支的生产,减少了生产成本,并提高了卷烟机的利用率。(The invention relates to a method for pre-judging cigarette machine faults by using automatic cigarette monitoring data, which utilizes an automatic detection system to realize the on-line detection of cigarette physical indexes through automatic sampling and automatic detection, pre-judges the faults of a cigarette machine through the detection data of the physical indexes, and timely alarms to operators or maintenance personnel to maintain or adjust the relevant parts of the cigarette machine, thereby reducing the production of unqualified cigarettes, reducing the production cost and improving the utilization rate of the cigarette machine.)

1. A method for pre-judging cigarette machine faults by using cigarette automatic monitoring data is characterized by comprising the following steps:

s1, selecting multiple sections of historical data of a first set time length and cigarette detection data of a corresponding time length of the cigarette making machine;

s2, combining the record of the fault of the cigarette making machine to obtain the change data of one or more physical indexes in the cigarettes in a second set time length before the fault of the cigarette making machine, and obtaining the associated data sets of N data of the physical indexes in the cigarettes and the corresponding fault of the cigarette making machine, wherein N is a natural number more than 1;

s3, the automatic cigarette detection system automatically samples and detects cigarettes on the cigarette conveying line on line according to the set program and time interval, and detects the data M₁Transmitting the detection data to a controller, and if the detection data is in a set range, storing the current detection data by the controller;

s4, when the next on-line detection is carried out, if the data M is detected₂Within the set range, the controller stores the current detection data and repeats step S4 until detection data M_NAll within the set range, the controller will detect the data M on line₁、M₂…M_NForming an online detection data set;

s5, the controller compares the on-line detection data set with the associated data set, if the error is in the set range, the corresponding fault risk of the cigarette making machine is determined to be high, the early warning information is sent, the on-line detection data set is abandoned, if the error is not in the set range, the corresponding fault risk of the cigarette making machine is determined to be low, and the controller abandons the detection data M₁；

S6, the controller detects the data M on line₂、M₃…M_N+1Forming a new online detection data group, comparing the new online detection data group with the associated data group, and so on until the early warning information is sent, and emptying the online detection data group by the controller;

and S7, repeating the steps S3 to S6.

2. The method for pre-judging the failure of a cigarette making machine according to the claim 1, wherein the physical indexes include but are not limited to the cigarette weight, the cigarette length, the cigarette appearance or the cigarette circumference.

3. The method for pre-judging the fault of the cigarette making machine by utilizing the cigarette automatic monitoring data according to the claim 1, characterized in that the first set time length is more than 3 months, and the second set time length is more than 5 or more than 5 detection intervals of the cigarette automatic detection system.

4. The method for pre-judging the fault of the cigarette making machine by utilizing the automatic cigarette monitoring data according to the claim 2, wherein the method for automatically sampling and detecting cigarettes on line utilizes an automatic cigarette detection system, and comprises the following steps:

s11, driving the cigarette pickup device to move above the cigarette conveying line by the cigarette moving device according to the set time interval, and keeping the cigarette pickup device not in contact with the cigarettes on the cigarette conveying line;

s12, opening an electromagnetic valve of the cigarette pickup device, and sucking the cigarettes to cigarette suction claws of the cigarette pickup device by using suction force generated by negative pressure;

s13, the cigarette pickup device ascends and controls the cigarette moving device to move out of the cigarette conveying line;

s14, moving the cigarette pickup device to a detection base point, respectively detecting the cigarette weight, the cigarette length, the cigarette appearance and the cigarette circumference, and feeding detection data back to the controller.

5. The method according to claim 4, wherein after step S14, the method further comprises the steps of driving a cigarette pickup device to return to above the cigarette conveying line by the cigarette moving device if the physical indexes are detected to be qualified, closing the electromagnetic valve, and dropping the cigarettes on the cigarette conveying line;

if any physical index is unqualified, the cigarette moving device drives the cigarette pickup device to move above the waste cigarette storage box, the electromagnetic valve is closed, and the cigarettes fall into the waste cigarette storage box.

6. The method for pre-judging the fault of the cigarette machine by utilizing the automatic cigarette monitoring data according to the claim 1 or 4, characterized in that the automatic cigarette detection system comprises a cigarette pickup device, a cigarette moving device, a cigarette detection device and a controller;

the cigarette pickup device is connected with the cigarette moving device, and the cigarette detection device is matched with the cigarette pickup device;

the cigarette moving device, the cigarette pickup device and the cigarette detection device are all in electric signal connection with the controller.

7. The method for pre-judging the fault of the cigarette making machine by utilizing the automatic cigarette monitoring data according to the claim 6, wherein the cigarette picking device comprises a connecting rod, a rotary cylinder, an electromagnetic valve and a cigarette suction claw, the upper end of the connecting rod is connected with the cigarette moving device, the lower end of the connecting rod is connected with the rotary cylinder, the output end of the rotary cylinder is connected with the cigarette suction claw, the cigarette suction claw is provided with a suction hole, the suction hole is connected with a negative pressure air source through a pipeline, the pipeline is provided with the electromagnetic valve, and the rotary cylinder and the electromagnetic valve are both in electric signal connection with the controller.

8. The method for pre-judging the fault of the cigarette making machine by utilizing the automatic cigarette monitoring data according to the claim 6, wherein the cigarette moving device comprises an X-direction linear guide rail assembly and a Y-direction linear guide rail assembly;

the X-direction linear guide rail assembly comprises an X-direction guide rail, an X-direction ball screw, an X-direction slider and an X-direction stepping motor, two ends of the X-direction ball screw are rotatably arranged on the X-direction guide rail through an X-direction ball screw supporting seat, the X-direction slider is sleeved on the X-direction ball screw and is in sliding clamping connection with the X-direction guide rail, the X-direction stepping motor is arranged at one end of the X-direction guide rail, and an output shaft of the X-direction stepping motor is connected with the X-direction ball screw;

the Y-direction linear guide rail assembly comprises a Y-direction guide rail, a Y-direction ball screw, a Y-direction stepping motor and a Y-direction sliding block;

the Y-direction guide rail is fixed on the X-direction sliding block, two ends of the Y-direction ball screw are rotatably arranged on the Y-direction guide rail through a Y-direction ball screw supporting seat, the Y-direction sliding block is sleeved on the Y-direction ball screw and is clamped on the Y-direction guide rail in a sliding mode, and the output end of the Y-direction stepping motor is connected with the Y-direction ball screw.

9. The method for pre-judging the fault of the cigarette making machine by utilizing the automatic cigarette monitoring data according to claim 8, wherein a photoelectric switch is arranged on the Y-direction guide rail, and the photoelectric switch is in electric signal connection with the controller.

10. The method for pre-judging the fault of the cigarette making machine by utilizing the automatic cigarette monitoring data according to the claim 6, wherein the cigarette detecting device comprises a cigarette weight detecting device, a cigarette length detecting device, a cigarette appearance detecting device and a cigarette circumference detecting device; the cigarette weight detection device is an electronic balance; the cigarette length detection device, the cigarette appearance detection device and the cigarette circumference detection device adopt the same CCD image sensor for detection.

Technical Field

The invention belongs to the technical field of cigarette detection and management, and particularly relates to a method for pre-judging cigarette machine faults by using automatic cigarette monitoring data.

Background

In the cigarette making machines used in the existing cigarette factories, the quality of products is visually detected or is detected to be out of order, or the cigarette making machines are maintained or shut down to process when obvious faults occur, and the cigarette production line at the moment causes a large amount of unqualified waste cigarettes, so that the great waste is caused, and the production cost is improved.

According to the detection of certain physical indexes of cigarette cigarettes, in the prior art, offline detection is carried out in a manual mode, and the detection result is fed back to an operator of a cigarette making machine after detection, so that the detection result is completely asynchronous with the production of the cigarette making machine, the detection only achieves the purpose of later-stage monitoring, and no effect is produced on the instant monitoring of the cigarette making machine.

In order to improve the detection efficiency, the prior art uses an automatic sampling technology, and compressed air is utilized to blow cigarettes from a cigarette conveying line into a sampling device, and then manual detection is performed. Such technique has great promotion to detection efficiency, but still can not accomplish instant monitoring, more can not carry out the prejudgement to the trouble of cigarette machine, does not conform to the requirement of current intelligent technology and management.

Disclosure of Invention

The invention aims to provide a method for pre-judging faults of a cigarette making machine by using cigarette automatic monitoring data, which solves the problem that the prior art can not pre-judge the faults of the cigarette making machine and can only perform later-stage monitoring on products.

The invention is realized by the following technical scheme:

a method for pre-judging cigarette machine faults by using cigarette automatic monitoring data comprises the following steps:

s1, selecting multiple sections of historical data of a first set time length and cigarette detection data of a corresponding time length of the cigarette making machine;

s2, combining the record of the fault of the cigarette making machine to obtain the change data of one or more physical indexes in the cigarettes in a second set time length before the fault of the cigarette making machine, and obtaining the associated data sets of N data of the physical indexes in the cigarettes and the corresponding fault of the cigarette making machine, wherein N is a natural number more than 1;

s3, the automatic cigarette detection system automatically samples and detects cigarettes on the cigarette conveying line on line according to the set program and time interval, and detects the data M₁Transmitting the detection data to a controller, and if the detection data is in a set range, storing the current detection data by the controller;

s4, when the next on-line detection is carried out, if the data M is detected₂Within the set range, the controller stores the current detection data and repeats step S4 until detection data M_NAll within the set range, the controller will detect the data M on line₁、M₂…M_NForming an online detection data set;

s5, the controller compares the on-line detection data set with the associated data set, if the error is in the set range, the corresponding fault risk of the cigarette making machine is determined to be high, the early warning information is sent, the on-line detection data set is abandoned, if the error is not in the set range, the corresponding fault risk of the cigarette making machine is determined to be low, and the controller abandons the detection data M₁；

S6, the controller detects the data M on line₂、M₃…M_N+1Forming a new online detection data group, comparing the new online detection data group with the associated data group, and so on until the early warning information is sent, and emptying the online detection data group by the controller;

and S7, repeating the steps S3 to S6.

Preferably, the physical indicators include, but are not limited to, cigarette weight, cigarette length, cigarette appearance, or cigarette circumference.

Preferably, the first set time length is longer than 3 months, and the second set time length is longer than 5 or more than 5 detection intervals of the cigarette automatic detection system.

Preferably, the method for automatically sampling and detecting cigarettes on line utilizes an automatic cigarette detection system and comprises the following steps:

s11, driving the cigarette pickup device to move above the cigarette conveying line by the cigarette moving device according to the set time interval, and keeping the cigarette pickup device not in contact with the cigarettes on the cigarette conveying line;

s12, opening an electromagnetic valve of the cigarette pickup device, and sucking the cigarettes to cigarette suction claws of the cigarette pickup device by using suction force generated by negative pressure;

s13, the cigarette pickup device ascends and controls the cigarette moving device to move out of the cigarette conveying line;

s14, moving the cigarette pickup device to a detection base point, respectively detecting the cigarette weight, the cigarette length, the cigarette appearance and the cigarette circumference, and feeding detection data back to the controller.

Preferably, after the step S14, if the physical indexes are all qualified, the cigarette moving device drives the cigarette pickup device to return to the position above the cigarette conveying line, the electromagnetic valve is closed, and the cigarettes fall on the cigarette conveying line;

if any physical index is unqualified, the cigarette moving device drives the cigarette pickup device to move above the waste cigarette storage box, the electromagnetic valve is closed, and the cigarettes fall into the waste cigarette storage box.

Preferably, the cigarette automatic detection system comprises a cigarette pickup device, a cigarette moving device, a cigarette detection device and a controller;

the cigarette pickup device is connected with the cigarette moving device, and the cigarette detection device is matched with the cigarette pickup device;

the cigarette moving device, the cigarette pickup device and the cigarette detection device are all in electric signal connection with the controller.

Preferably, a cigarette pickup apparatus includes that connecting rod, revolving cylinder, solenoid valve and cigarette inhale the claw, the upper end of connecting rod with a cigarette mobile device connects, the lower extreme and the revolving cylinder of connecting rod are connected, revolving cylinder's output and a cigarette are inhaled the claw and are connected, a cigarette is inhaled and is provided with on the claw and inhales the hole, it is connected with negative pressure air source through the pipeline to inhale the hole, is provided with the solenoid valve on the pipeline, revolving cylinder reaches the solenoid valve all with controller signal of electricity connection.

Preferably, the cigarette moving device comprises an X-direction linear guide rail assembly and a Y-direction linear guide rail assembly;

the X-direction linear guide rail assembly comprises an X-direction guide rail, an X-direction ball screw, an X-direction slider and an X-direction stepping motor, two ends of the X-direction ball screw are rotatably arranged on the X-direction guide rail through an X-direction ball screw supporting seat, the X-direction slider is sleeved on the X-direction ball screw and is in sliding clamping connection with the X-direction guide rail, the X-direction stepping motor is arranged at one end of the X-direction guide rail, and an output shaft of the X-direction stepping motor is connected with the X-direction ball screw;

the Y-direction linear guide rail assembly comprises a Y-direction guide rail, a Y-direction ball screw, a Y-direction stepping motor and a Y-direction sliding block;

the Y-direction guide rail is fixed on the X-direction sliding block, two ends of the Y-direction ball screw are rotatably arranged on the Y-direction guide rail through a Y-direction ball screw supporting seat, the Y-direction sliding block is sleeved on the Y-direction ball screw and is clamped on the Y-direction guide rail in a sliding mode, and the output end of the Y-direction stepping motor is connected with the Y-direction ball screw.

Preferably, a photoelectric switch is arranged on the Y-direction guide rail, and the photoelectric switch is in electrical signal connection with the controller.

Preferably, the cigarette detection device comprises a cigarette weight detection device, a cigarette length detection device, a cigarette appearance detection device and a cigarette circumference detection device; the cigarette weight detection device is an electronic balance; the cigarette length detection device, the cigarette appearance detection device and the cigarette circumference detection device adopt the same CCD image sensor for detection.

The invention has the beneficial effects that:

according to the technical scheme, the automatic detection system is utilized, the automatic sampling and automatic detection are realized, the cigarette physical indexes are detected on line, the faults of the cigarette making machine are pre-judged through the detection data of the physical indexes, and the alarm is timely given to an operator or a maintenance worker to maintain or adjust the relevant parts of the cigarette making machine, so that the production of unqualified cigarettes is reduced, the production cost is reduced, and the utilization rate of the cigarette making machine is improved.

Drawings

FIG. 1 is a schematic structural diagram of an automatic inspection system according to the present invention.

Description of the reference numerals

1. The cigarette weight measuring device comprises a support frame, 2, a base, 3, an X-direction linear guide rail assembly, 4, a Y-direction linear guide rail assembly, 5, a connecting rod, 6, a rotary cylinder, 7, a cigarette suction claw, 8, a cigarette weight measuring device, 9, a measuring base point, 10, a cigarette conveying line, 11, a cigarette, 12 and a CCD image sensor, 31, an X-direction guide rail, 32, an X-direction ball screw, 33, an X-direction sliding block, 34, an X-direction stepping motor, 41, a Y-direction guide rail, 42, a Y-direction ball screw, 43, a Y-direction sliding block, 44 and a Y-direction stepping motor.

Detailed Description

The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.

In the technical solutions of the present application, modifiers such as "upper", "lower", "left", "right", "front", "rear", and the like related to directions or positions are intended to explain the technical solutions of the present application, and are not particularly limited to specific positions.

The technical scheme of the application is a cigarette machine fault pre-judgment method based on an automatic cigarette detection system, and firstly provides an online detection system for detecting cigarette physical indexes, as shown in figure 1.

The automatic detection system comprises a cigarette pickup device, a cigarette moving device, a cigarette detection device and a controller.

The cigarette pickup device is connected with the cigarette moving device, and the cigarette detection device is matched with the cigarette pickup device.

The cigarette moving device, the cigarette pickup device and the cigarette detection device are all in electric signal connection with the controller.

The technical scheme of this application still includes base 2 and support frame 1, and the base is used for installing this on-line measuring system in required position, or in the casing, and is specific according to needs and decide. The lower extreme vertical fixation of support frame installs on the base, and the support frame is for can realizing this technical scheme's arbitrary support, and all can realize this application's technical scheme all can, consequently, does not explain in detail the support frame among this application's technical scheme.

The cigarette moving device comprises an X-direction linear guide rail assembly 3 and a Y-direction linear guide rail assembly 4.

The X-direction linear guide rail assembly 3 comprises an X-direction guide rail 31, an X-direction ball screw 32, an X-direction slider 33 and an X-direction stepping motor 34. X includes the guide rail body to the guide rail, in the technical scheme of this application, the guide rail body is the cuboid, the square, rectangular pipe shape, square tubular or other similar structures, in this embodiment, the guide rail body is the cuboid structure, the one end of guide rail body is installed on the support frame, in the technical scheme of this application, the one end of guide rail body is fixed mounting on the support frame, in other embodiments of this application, the one end of guide rail body also can be sliding connection with the support frame, perhaps drive through elevator motor, with the height of adjustment X to the guide rail, in order to adapt to different production lines.

In this embodiment, the upper and lower ends of the side (right side as shown in fig. 1) of the guide rail body opposite to the Y-direction linear guide rail assembly are respectively provided with a sliding groove, which is an upper sliding groove and a lower sliding groove, so that the cross section of the guide rail body is at least in a shape of a letter convex turning 90 degrees right, the sliding groove is used for being matched with the X-direction sliding block, and the cross section of the X-direction sliding block is in a shape of a letter concave turning 90 degrees left. The structure of the guide rail body can ensure that the X-direction sliding block slides on the guide rail body and can prevent the X-direction sliding block from rotating.

An X-direction ball screw supporting seat is respectively arranged at the front end and the rear end on the right side of the guide rail body and close to the two ends, the X-direction ball screw is rotatably arranged between the X-direction ball screw supporting seats, the rear end of the X-direction ball screw penetrates through the X-direction ball screw supporting seat, an axially through threaded hole is formed in the X-direction sliding block, the X-direction sliding block is sleeved on the X-direction ball screw, and the X-direction sliding block moves back and forth along a sliding groove of the guide rail body under the rotation of the X.

An X-direction stepping motor is arranged at the rear end of the X-direction guide rail, and an output shaft of the X-direction stepping motor is connected with the X-direction ball screw and used for a rotation power source of the X-direction ball screw.

The Y-direction linear guide rail assembly 4 comprises a Y-direction guide rail 41, a Y-direction ball screw 42, a Y-direction stepping motor 44 and a Y-direction sliding block 43;

the Y-direction guide rail is fixed on the X-direction sliding block through a screw rod, the axis of the Y-direction guide rail is vertical to the axis of the X-direction guide rail, and the X-direction sliding block moves to drive the Y-direction guide rail to synchronously move.

The Y-direction guide rail comprises a Y-direction guide rail body and a Y-direction ball screw support seat which extends outwards along the side surface (right side surface) of the Y-direction guide rail body opposite to the X-direction sliding block and is close to the upper end and the lower end, and through sliding grooves are also arranged in the front and the back of the side surface and are used for positioning and sliding the Y-direction sliding block. The Y-direction sliding groove is in threaded sleeve connection with the Y-direction ball screw, a Y-direction stepping motor is arranged above the Y-direction guide rail, and an output shaft of the Y-direction stepping motor is connected with the Y-direction ball screw to drive the Y-direction ball screw to rotate and drive the Y-direction sliding block to slide up and down.

The Y-direction guide rail is provided with a photoelectric switch, when the Y-direction guide rail moves to the position above the cigarette to be sampled, the photoelectric switch detects the position, the position signal is transmitted to the controller, and the controller controls the action of the Y-direction stepping motor and the cigarette pickup device to start sampling.

In the technical scheme of this application, step motor all adds establishes servo controller, and servo controller all is connected with the controller, controls X respectively to step motor and/or Y to step motor's action through the controller, realizes accurate movement control.

The cigarette pickup device comprises a connecting rod 5, a rotary cylinder 6 and a cigarette suction claw 7, wherein the upper end of the connecting rod is connected with the Y-direction sliding block, and the connecting rod is driven to move up and down under the movement of the Y-direction sliding block. The lower end of the connecting rod is provided with a rotary cylinder, the output end of the rotary cylinder is connected with a cigarette suction claw, and the direction of the cigarette suction claw is adjusted so as to measure the cigarette 11. The cigarette sucking claw is provided with a sucking groove, the cross section of the sucking groove is semicircular or arc-shaped, a cigarette is convenient to suck, a sucking hole is arranged in the sucking groove and is connected with a negative pressure air source through a pipeline, and the pipeline is provided with an electromagnetic valve which is in electric signal connection with a controller.

Cigarette weight measurement device 8 sets up in the below of a cigarette pickup attachment's migration within range, and in this embodiment, cigarette weight measurement device adopts electronic balance as the sensor, and electronic balance sets up on the base, and is located the below of a cigarette smoking claw's migration within range, through R232 data transmission serial ports, utilizes computer programming, gathers pressure sensor signal, and the collection logic is as follows: when the collected signal is lower than a certain value, the weight detection device is determined to have no cigarette, when the signal is higher than the certain value, multiple comparison is carried out, and when the comparison values are consistent for multiple times continuously, the data is used as a measurement value and is stored in a controller for analysis.

A measuring base point 9 is arranged between the upper part of the cigarette weight measuring device and the lower part of the moving range of the cigarette pickup device, a detector is arranged at the measuring base point, and the detector is in electric signal connection with the controller and is used for detecting that the cigarette pickup device moves to the detecting base point and starting to carry out on-line measurement on physical indexes and appearance of the cigarette. Specifically, after the cigarette pickup device finishes sampling cigarettes, the cigarette mobile device drives the picked cigarettes to leave the cigarette conveying line, the controller controls the Y to rotate towards the stepping motor, the Y is driven to move upwards towards the sliding block, meanwhile, the connecting rod is driven to move upwards, then, the Y is driven to move towards the direction of the support frame towards the guide rail assembly through the action of the X towards the stepping motor, when the Y moves to the measurement base point, the measurement base point detects that the cigarette controller to be sampled controls the X to stop towards the stepping motor, or after the direction or the position of the cigarettes is adjusted through the rotary air cylinder, the controller controls the circumference and the length measurement device of the cigarettes to start measurement, after the measurement is finished, the cigarette pickup device places the cigarettes to be detected on the weight detection device to measure the cigarette weight, and the detection data are all transmitted to the computer to be stored and.

In the technical scheme of this application, the circumference and the length measurement of cigarette adopt the micro vision to measure, belong to non-contact measurement.

In the technical scheme of this application, a cigarette length, a cigarette outward appearance and a cigarette circumference all adopt same CCD image sensor 12 to measure.

The application provides a method for pre-judging cigarette machine faults by using cigarette automatic monitoring data, which comprises the following steps:

s1, selecting multiple sections of historical data of a first set time length and cigarette detection data of a corresponding time length of the cigarette making machine;

s2, combining the record of the fault of the cigarette making machine to obtain the change data of one or more physical indexes in the cigarettes in a second set time length before the fault of the cigarette making machine, and obtaining the associated data sets of N data of the physical indexes in the cigarettes and the corresponding fault of the cigarette making machine, wherein N is a natural number more than 1;

s3, the automatic cigarette detection system automatically samples and detects cigarettes on the cigarette conveying line on line according to the set program and time interval, and detects the data M₁Transmitting the detection data to a controller, and if the detection data is in a set range, storing the current detection data by the controller;

s4, when the next on-line detection is carried out, if the data M is detected₂Within the set range, the controller stores the current detection data and repeats step S4 until detection data M_NAll within the set range, the controller will detect the data M on line₁、M₂…M_NForming an online detection data set;

s5, the controller compares the on-line detection data set with the associated data set, if the error is in the set range, the corresponding fault risk of the cigarette making machine is determined to be high, the early warning information is sent, the on-line detection data set is abandoned, if the error is not in the set range, the corresponding fault risk of the cigarette making machine is determined to be low, and the controller abandons the detection data M₁；

S6, the controller detects the data M on line₂、M₃…M_N+1Forming a new online detection data group, comparing the new online detection data group with the associated data group, and so on until the early warning information is sent, and emptying the online detection data group by the controller;

and S7, repeating the steps S3 to S6.

Physical indicators include, but are not limited to, cigarette weight, cigarette length, cigarette appearance, or cigarette circumference.

The first set time length is longer than 3 months, and the second set time length is longer than 5 or more than 5 detection intervals of the cigarette automatic detection system.

The method for automatically sampling and detecting cigarettes on line utilizes the automatic cigarette detection system and comprises the following steps:

s11, driving the cigarette pickup device to move above the cigarette conveying line by the cigarette moving device according to the set time interval, and keeping the cigarette pickup device not in contact with the cigarettes on the cigarette conveying line;

s12, opening an electromagnetic valve of the cigarette pickup device, and sucking the cigarettes to cigarette suction claws of the cigarette pickup device by using suction force generated by negative pressure;

s13, the cigarette pickup device ascends and controls the cigarette moving device to move out of the cigarette conveying line;

s14, moving the cigarette pickup device to a detection base point, respectively detecting the cigarette weight, the cigarette length, the cigarette appearance and the cigarette circumference, and feeding detection data back to the controller.

After the step S14, if the physical indexes are all qualified, the cigarette moving device drives the cigarette pickup device to return to the upper part of the cigarette conveying line, the electromagnetic valve is closed, and the cigarettes fall on the cigarette conveying line;

if any physical index is unqualified, the cigarette moving device drives the cigarette pickup device to move above the waste cigarette storage box, the electromagnetic valve is closed, and the cigarettes fall into the waste cigarette storage box.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.