阅读说明：本技术 一种烟支外观在线检测方法 (Cigarette appearance online detection method ) 是由 徐国现 陈圣 沈宗毅 于 2020-12-22 设计创作，主要内容包括：本发明涉及一种烟支外观在线检测方法,控制器控制烟支移动装置移动到烟支输送线的上方；控制器控制烟支拾取装置的电磁阀开启,烟支拾取装置利用负压产生的吸力,将烟支吸到烟支拾取装置的烟支吸爪上；检测基点检测到烟支吸爪信号后,烟支外观检测装置对烟支的外观进行测量。本技术方案通过自动控制烟支检测系统,通过自动取样及自动测量,并将测量数据反馈给控制器,再通过控制器发送到人机交换系统,能够及时对烟支输送线上的烟支的外观进行测量,并且可以根据需要,随时调节取样间隔,在保证检测间隔相等的情况下,减少取样工作量。(The invention relates to a cigarette appearance on-line detection method.A controller controls a cigarette moving device to move above a cigarette conveying line; the controller controls the electromagnetic valve of the cigarette pickup device to be opened, and the cigarette pickup device sucks the cigarettes to the cigarette suction claws of the cigarette pickup device by utilizing the suction force generated by the negative pressure; after the detection base point detects a cigarette claw suction signal, the cigarette appearance detection device measures the appearance of the cigarette. This technical scheme passes through automatic control cigarette detecting system, through automatic sampling and automatic measure to give the controller with measured data feedback, man-machine exchange system is sent to the rethread controller, can in time measure the outward appearance of cigarette on a cigarette transfer chain, and can adjust the sample interval as required at any time, under the circumstances that the assurance detects the interval and equals, reduces sample work load.)

1. A cigarette appearance online detection method is characterized by comprising the following steps:

s1, designing detection frequency according to detection needs;

s2, when the appearance is detected each time, the controller controls the cigarette moving device to move above the cigarette conveying line and keeps the cigarette pickup device not to contact with the cigarettes on the cigarette conveying line;

s3, the controller controls the electromagnetic valve of the cigarette pickup device to open, and the cigarette pickup device sucks the cigarettes to the cigarette suction claws of the cigarette pickup device by using the suction force generated by the negative pressure;

s4, the controller controls the cigarette pickup device to ascend and controls the cigarette moving device to move out of the cigarette conveying line;

s5, after a cigarette claw sucking signal is detected by a detection base point arranged in the moving range of the cigarette moving device, the controller controls the cigarette moving device to stop moving and keeps a stop state for setting time;

s6, the cigarette appearance detection device transmits the image which can be identified by the cigarette acquisition controller to the controller, the controller extracts the shape characteristic of the image, compares the shape characteristic with the standard image stored in the controller, if the image is normal, the controller stores the data and transmits the data to the man-machine interaction system, and executes the step S7; if the image is abnormal, the controller stores the data and sends an alarm signal to the human-computer interaction system, and step S8 is executed;

s7, the controller controls the moving device to move and enables the cigarette pickup device to be located above the cigarette conveying line, the controller controls the electromagnetic valve to be closed, and the cigarettes fall back to the cigarette conveying line;

s8, the controller controls the moving device to move and enables the cigarette pickup device to move to the position above the waste cigarette storage box, the controller controls the electromagnetic valve to be closed, and the cigarettes fall into the waste cigarette storage box.

2. The online cigarette appearance detection method according to claim 1, wherein a position sensor is arranged on the cigarette moving device, and the position sensor detects a signal of the cigarette conveying line and feeds the signal back to the controller, so as to ensure that a cigarette suction claw of the cigarette pickup device is positioned in the range of a tobacco shred part of a cigarette.

3. The cigarette appearance online detection method according to claim 2, wherein the position sensor is a photoelectric switch.

4. The online detection method for the cigarette appearance according to claim 1, wherein the suction force generated by the negative pressure is greater than the weight of a single cigarette but less than the weight of two cigarettes.

5. The online cigarette appearance detection method according to claim 1, wherein the cigarette appearance observation amount is measured by microscopic vision, and a CCD image sensor is used for acquiring an image which can be identified by a controller.

6. The on-line cigarette appearance detection method according to claim 1, wherein the cigarette pickup device comprises a connecting rod 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 cigarette suction claw, the cigarette suction claw is provided with a suction hole, and the suction hole is connected with a negative pressure air source through a pipeline.

7. The cigarette appearance online detection method according to claim 1, wherein the stop state maintaining setting time in step S5 is 1-5 seconds.

Technical Field

The invention belongs to the technical field of cigarette detection, and particularly relates to an online detection method for cigarette appearance.

Background

At present, cigarette physical indexes of cigarette production enterprises are mainly detected on line through an outer diameter measuring plate and an electronic scale, off-line detection is mainly carried out through a cigarette comprehensive test bench, measuring of the measuring plate is used for measuring circumference indexes and length indexes, measuring of the measuring plate is subjective in measurement, measured values of the measuring plate are different from person to person, and reliability is extremely poor in judgment basis; the electronic scale is used for measuring the development weight, and manual operation of an operator is needed in sampling, calibration and measurement; the comprehensive cigarette test bench can measure physical indexes such as weight, length, roundness and suction resistance synchronously, but basically belongs to off-line detection.

Above three kinds of measurement scheme, all need the manual work to take a sample, according to workshop quality control regulation, generally need carry out artifical length, circumference and weight measurement to the cigarette every 5 minutes, carry out comprehensive test platform every 30 minutes and measure, manual operation can not guarantee the promptness of sample, and limited comprehensive test platform also can not satisfy the simultaneous use of many cigarette machines, can see out that the off-line measurement is not timely to quality control reaction, and measuring frequency is low, can not satisfy daily production needs. Moreover, cigarette appearance indexes can not be monitored in real time all the time in a plurality of cigarette production plants after investigation.

Disclosure of Invention

The invention aims to provide an online cigarette appearance detection method, which aims to solve the problems that in the prior art, offline detection is required for cigarette appearance detection and real-time monitoring cannot be realized.

The invention is realized by the following technical scheme:

a cigarette appearance online detection method comprises the following steps:

s1, designing detection frequency according to detection needs;

s2, when the appearance is detected each time, the controller controls the cigarette moving device to move above the cigarette conveying line and keeps the cigarette pickup device not to contact with the cigarettes on the cigarette conveying line;

s3, the controller controls the electromagnetic valve of the cigarette pickup device to open, and the cigarette pickup device sucks the cigarettes to the cigarette suction claws of the cigarette pickup device by using the suction force generated by the negative pressure;

s4, the controller controls the cigarette pickup device to ascend and controls the cigarette moving device to move out of the cigarette conveying line;

s5, after a cigarette claw sucking signal is detected by a detection base point arranged in the moving range of the cigarette moving device, the controller controls the cigarette moving device to stop moving and keeps a stop state for setting time;

s6, the cigarette appearance detection device transmits the image which can be identified by the cigarette acquisition controller to the controller, the controller extracts the shape characteristic of the image, compares the shape characteristic with the standard image stored in the controller, if the image is normal, the controller stores the data and transmits the data to the man-machine interaction system, and executes the step S7; if the image is abnormal, the controller stores the data and sends an alarm signal to the human-computer interaction system, and step S8 is executed;

s7, the controller controls the moving device to move and enables the cigarette pickup device to be located above the cigarette conveying line, the controller controls the electromagnetic valve to be closed, and the cigarettes fall back to the cigarette conveying line;

s8, the controller controls the moving device to move and enables the cigarette pickup device to move to the position above the waste cigarette storage box, the controller controls the electromagnetic valve to be closed, and the cigarettes fall into the waste cigarette storage box.

Preferably, a position sensor is arranged on the cigarette moving device and used for detecting signals of the cigarette conveying line and feeding the signals back to the controller so as to ensure that the cigarette suction claws of the cigarette pickup device are positioned in the range of the tobacco shred parts of the cigarettes.

Preferably, the position sensor is an opto-electronic switch.

Preferably, the suction force generated by the negative pressure is greater than the weight of a single cigarette but less than the weight of two cigarettes.

Preferably, the cigarette appearance observation quantity is measured by microscopic vision, and a CCD image sensor is used for acquiring images which can be identified by the controller.

Preferably, the cigarette pickup device comprises a connecting rod 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 cigarette suction claw, a suction hole is formed in the cigarette suction claw, and the suction hole is connected with a negative pressure air source through a pipeline.

Preferably, the stop state maintaining setting time in step S5 is 1 to 5 seconds.

The invention has the beneficial effects that:

this technical scheme passes through automatic control cigarette detecting system, through automatic sampling and automatic measure to give the controller with measured data feedback, man-machine exchange system is sent to the rethread controller, can in time measure the outward appearance of cigarette on a cigarette transfer chain, and can adjust the sample interval as required at any time, under the circumstances that the assurance detects the interval and equals, reduces sample work load.

Drawings

FIG. 1 is a schematic structural diagram of an on-line cigarette detection system according to the present invention.

Description of the reference numerals

1. The device comprises an X-direction guide rail, 2 and X-direction ball screws, 3 and X-direction sliding blocks, 4 and X-direction stepping motors, 5 and Y-direction guide rails, 6 and Y-direction ball screws, 7 and a connecting rod, 8 and a rotating cylinder, 9 and cigarette suction claws, 10 and measurement base points, 11 and a CCD image sensor.

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 that the on-line monitoring system for the physical indexes of cigarettes is utilized to realize, as shown in figure 1, the on-line monitoring system at least comprises a cigarette pickup device, a cigarette moving device, a cigarette appearance detection device and a controller, and the output end of the controller is connected with the electric signal of a man-machine interaction system of a production line or a detection mechanism. In the technical scheme of the application, the controller adopts a device or a module which is used by the prior conventional technology and can play the role of the controller, and the controller can be obtained by commercial purchase.

The on-line monitoring system of this application still includes base and support frame, and the base is used for installing this on-line monitoring system in required position, or in the casing, and specific as required is decided. 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 and a Y-direction linear guide rail assembly.

The X-direction linear guide rail assembly comprises an X-direction guide rail 1, an X-direction ball screw 2, an X-direction sliding block 3 and an X-direction stepping motor 4. 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 comprises a Y-direction guide rail 5, a Y-direction ball screw 6, a Y-direction stepping motor and a Y-direction sliding block;

the Y-direction guide rail is fixed on the X-direction sliding block through a screw, the axis of the Y-direction guide rail is perpendicular 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 utility model provides a position sensor is photoelectric switch, sets up on Y is to the guide rail, when Y removes a cigarette transfer chain top to the guide rail, targets in place by photoelectric switch detection to signal transmission that will target in place gives the controller, and controller control Y begins the sample to step motor action and a cigarette pickup attachment.

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 7 and a cigarette suction claw 9, 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 connected with a cigarette suction claw, a suction hole is formed in the cigarette suction claw and connected with a negative pressure air source through a pipeline, and an electromagnetic valve is arranged on the pipeline and electrically connected with a controller.

Cigarette outward appearance detection device set up in side in cigarette pickup attachment's the migration range, in this embodiment, cigarette outward appearance detection device utilizes CCD imaging technique to measure, chooses CCD image sensor 11 and supporting camera lens and support for use, and CCD image sensor passes through R232 data transmission serial ports, and application computer programming gathers CCD image sensor signal, and the storage module of storage to controller carries out the analysis.

Be provided with measurement basic point 10 between the below of cigarette pickup assembly's range of movement measurement basic point department is provided with the detector, detector and controller electrical signal connection for it moves to measurement basic point to detect cigarette pickup assembly.

The cigarette appearance detection method comprises the following steps:

s1, designing a detection frequency according to detection requirements, wherein the detection frequency is used for sampling cigarettes on a cigarette conveying line and measuring the appearances of the cigarettes according to different brands, cigarette types (such as conventional cigarettes, medium-grade cigarettes and fine-grade cigarettes) and other design requirements, and the detection frequency of the conventional cigarettes is 2-12 times per hour under normal conditions. In general, the detection frequencies are spaced at the same intervals to ensure more representative detection frequencies.

S2, when the appearance is finished, the controller controls the cigarette moving device to move above the cigarette conveying line and keeps the cigarette pickup device not to contact with the cigarettes on the cigarette conveying line; specifically, the Y-guide rail component of the cigarette moving device moves to the upper side of the cigarette conveying line on the X-guide rail, and the cigarette pickup device is guaranteed to be located in the range of the tobacco shred part of the cigarette through accurate control, but not in the range of a filter stick, so that the cigarette is prevented from being biased to influence the measurement precision when the cigarette is sampled. The key of the technical scheme is that when sampling, the cigarette pickup device does not contact with the cigarette on the cigarette conveying line for sampling so as to avoid damage to the cigarette.

S3, the controller controls the electromagnetic valve of the cigarette pickup device to open, and the cigarette pickup device sucks the cigarettes to the cigarette suction claws of the cigarette pickup device by using the suction force generated by the negative pressure; the suction force generated by the negative pressure is larger than the weight of a single cigarette but smaller than the weight of two cigarettes so as to avoid simultaneously sucking the two cigarettes.

S4, the controller controls the cigarette pickup device to ascend and controls the cigarette moving device to move out of the cigarette conveying line; that is, the Y-guide rail assembly moves along the X-guide rail assembly toward the support frame.

S5, after a cigarette claw sucking signal is detected by a detection base point arranged in the moving range of the cigarette moving device, the controller controls the cigarette moving device to stop moving, namely controls the X-direction stepping motor to stop working and keeps a stop state for setting time; in the technical scheme of the application, the stop state is kept for 1-5 seconds, so that the cigarettes are prevented from shaking.

S6, the cigarette appearance detection device transmits the image which can be identified by the cigarette acquisition controller to the controller, the controller extracts the shape characteristic of the image, compares the shape characteristic with the standard image stored in the controller, if the image is normal, the controller stores the data and transmits the data to the man-machine interaction system, and executes the step S7; if the image is abnormal, the controller stores the data and sends an alarm signal to the human-computer interaction system, and step S8 is executed.

S7, the controller controls the moving device to move and enables the cigarette pickup device to be located above the cigarette conveying line, the controller controls the electromagnetic valve to be closed, and the cigarettes fall back to the cigarette conveying line.

S8, the controller controls the moving device to move and enables the cigarette pickup device to move to the position above the waste cigarette storage box, the controller controls the electromagnetic valve to be 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.