CN112741364A - Cigarette length online measurement method - Google Patents

Cigarette length online measurement method Download PDF

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Publication number
CN112741364A
CN112741364A CN202011529447.XA CN202011529447A CN112741364A CN 112741364 A CN112741364 A CN 112741364A CN 202011529447 A CN202011529447 A CN 202011529447A CN 112741364 A CN112741364 A CN 112741364A
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CN
China
Prior art keywords
cigarette
length
pickup device
controller
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011529447.XA
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Chinese (zh)
Inventor
陈圣
徐国现
沈宗毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hongyun Honghe Tobacco Group Co Ltd
Original Assignee
Hongyun Honghe Tobacco Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hongyun Honghe Tobacco Group Co Ltd filed Critical Hongyun Honghe Tobacco Group Co Ltd
Priority to CN202011529447.XA priority Critical patent/CN112741364A/en
Publication of CN112741364A publication Critical patent/CN112741364A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Abstract

The invention relates to a cigarette length online measurement 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 suction claw signal, the rotary cylinder on the cigarette pickup device rotates to realize that the cigarette is just opposite to the detection lens of the cigarette length detection device, and the cigarette length detection device measures the length 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 circumference 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.

Description

Cigarette length online measurement method
Technical Field
The invention belongs to the technical field of cigarette detection, and particularly relates to an online cigarette length measuring method.
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 length measuring method, which aims to solve the problems that the cigarette length measurement in the prior art needs offline detection and cannot be monitored in real time.
The invention is realized by the following technical scheme:
a cigarette length online measurement method comprises the following steps:
s1, designing detection frequency according to measurement needs;
s2, when measuring the length 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;
s6, rotating a rotary cylinder on the cigarette pickup device to drive a cigarette suction claw to synchronously rotate until the cigarette is opposite to a detection lens of the length detection device, wherein the axial central line of the cigarette is vertical to the axial central line of the detection lens, and the cigarette pickup device keeps a stop state for setting time;
s7, the cigarette length detection device acquires the recognizable image of the controller and transmits the recognizable image to the controller, the controller extracts the shape characteristic of the image, and the cigarette length index is obtained through calibration and conversion.
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 length measurement adopts microscopic vision measurement, and the CCD image sensor is utilized to amplify the cigarette by a set multiple and acquire images which can be selected by the controller.
Preferably, a cigarette pickup apparatus includes connecting rod, revolving cylinder and cigarette and inhales 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.
Preferably, the stop state maintaining setting time in step S6 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 length 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 the 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 length measuring device and a controller, and the output end of the controller is connected with a production line or a man-machine interaction system electric signal of 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 position sensor is a photoelectric switch and is arranged on the Y-direction guide rail, when the Y-direction guide rail moves to the upper portion of a cigarette to be sampled, the photoelectric switch detects the position, the position signal is transmitted to the controller, and the controller controls the Y-direction stepping motor to act 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 7, rotary air 8 and cigarette suction claws 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 provided with a rotary cylinder, and the output end of the rotary cylinder is connected with a cigarette suction claw for adjusting the direction of the cigarette suction claw. The cigarette suction claw is provided with a suction hole which 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 length measurement device set up in side in cigarette pickup attachment's the moving range, in this embodiment, cigarette length measurement device utilizes CCD imaging technique to measure, chooses for use CCD image sensor 11 and supporting camera lens and support, and CCD image sensor passes through R232 data transmission serial ports, and application computer programming gathers CCD image sensor signal, saves to the storage module of controller and 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 length measuring 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 length of the cigarettes according to different brands, cigarette types (such as conventional cigarettes, medium-grade cigarettes and fine-grade cigarettes) and other design requirements, the detection frequency of the conventional cigarettes is 2-12 times per hour under normal conditions, and in other embodiments of the application, corresponding design can be carried out according to requirements without affecting the implementation of the technical scheme of the application. In general, the detection frequencies are spaced at the same intervals to ensure more representative detection frequencies.
S2, when measuring the length 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; 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 situation that the cigarette is sampled and the bias influence on the measurement precision of the cigarette is avoided when the cigarette is detected. 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; i.e., the Y-guide rail assembly moves along the X-guide rail assembly.
S5, after the cigarette claw signal is detected by the 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.
S6, rotating a rotary cylinder on the cigarette pickup device to drive a cigarette suction claw to synchronously rotate until the cigarette is opposite to the lens of the CCD image sensor, wherein the axial central line of the cigarette is vertical to the axial central line of the lens, and the cigarette pickup device 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.
And S7, the cigarette length detection device measures the length of the cigarette, and after the measurement is finished, the measurement data are transmitted to the controller.
The cigarette length measurement adopts microscopic vision measurement, a CCD image sensor is utilized to amplify the cigarette in the length direction by a set multiple, the specific multiple is set according to requirements, images which can be distinguished by a controller are acquired, the shape characteristics of the images are extracted, and the cigarette length index is obtained through calibration and conversion.
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.

Claims (7)

1. A cigarette length online measurement method is characterized by comprising the following steps:
s1, designing detection frequency according to measurement needs;
s2, when measuring the length 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;
s6, rotating a rotary cylinder on the cigarette pickup device to drive a cigarette suction claw to synchronously rotate until the cigarette is opposite to a detection lens of the length detection device, wherein the axial central line of the cigarette is vertical to the axial central line of the detection lens, and the cigarette pickup device keeps a stop state for setting time;
s7, the cigarette length detection device acquires the recognizable image of the controller and transmits the recognizable image to the controller, the controller extracts the shape characteristic of the image, and the cigarette length index is obtained through calibration and conversion.
2. The cigarette length online measurement method according to claim 1, characterized in that 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 within the range of the cut tobacco part of the cigarette.
3. The cigarette length online measurement method according to claim 2, wherein the position sensor is a photoelectric switch.
4. The method for on-line measuring the length of the cigarettes 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 cigarette length online measurement method according to claim 1, wherein the cigarette length measurement adopts microscopic vision measurement, and the CCD image sensor is used for magnifying the cigarette by a set multiple to acquire images which can be distinguished by the controller.
6. The cigarette length online measurement method according to claim 1, wherein the cigarette pickup device comprises a connecting rod, a rotary cylinder 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, and the suction hole is connected with a negative pressure air source through a pipeline.
7. The cigarette length online measuring method according to claim 1, wherein the stop state maintaining setting time in step S6 is 1-5 seconds.
CN202011529447.XA 2020-12-22 2020-12-22 Cigarette length online measurement method Pending CN112741364A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Citations (14)

* Cited by examiner, † Cited by third party
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CN105334337A (en) * 2015-11-18 2016-02-17 江苏科凌医疗器械有限公司 Conveyor belt type sample detection system
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CN208255043U (en) * 2018-06-06 2018-12-18 上海裕隆神光医学检验实验室有限公司 A kind of Full-automatic tube-type chemiluminescent analyzer upper mechanism
CN109129485A (en) * 2018-09-18 2019-01-04 灵动科技(北京)有限公司 Mechanical arm Target Acquisition device and operating method
CN111505012A (en) * 2020-05-14 2020-08-07 上海傲仁高新科技有限公司 Cigarette full-appearance quality defect online detection system

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1385792A (en) * 1971-01-26 1975-02-26 Molins Ltd Methods and apparatus for testing cigarettes
CN200958982Y (en) * 2006-08-16 2007-10-10 张敏 Cigarette/filter-bar sample system
CN101491371A (en) * 2008-01-24 2009-07-29 豪尼机械制造股份公司 Removal of rod-shaped articles of the tobacco processing industry from a mass flow
CN201229260Y (en) * 2008-07-10 2009-04-29 成都瑞拓科技实业有限责任公司 Light cylinder flexible gripping device
CN101697840A (en) * 2009-10-26 2010-04-28 浙江中烟工业有限责任公司 Comprehensive cigarette test board
CN201509592U (en) * 2009-10-28 2010-06-23 河南省海田自动化系统有限公司 Cigarette quality three-term online detecting device
CN201571490U (en) * 2009-12-17 2010-09-08 上海烟草(集团)公司 On-line cigarette steel seal detecting system for GD121 cigarette making machine
CN102384859A (en) * 2010-08-31 2012-03-21 成都五牛科技有限公司 Cigarette/filter bar sampling system
WO2016041210A1 (en) * 2014-09-19 2016-03-24 红云红河烟草(集团)有限责任公司 Quality inspection system and method for cigarette product or filter tip
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CN105334337A (en) * 2015-11-18 2016-02-17 江苏科凌医疗器械有限公司 Conveyor belt type sample detection system
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CN109129485A (en) * 2018-09-18 2019-01-04 灵动科技(北京)有限公司 Mechanical arm Target Acquisition device and operating method
CN111505012A (en) * 2020-05-14 2020-08-07 上海傲仁高新科技有限公司 Cigarette full-appearance quality defect online detection system

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Application publication date: 20210504