CN115349657A - System and method for early warning abnormity of online moisture meter in key process of wire making - Google Patents
System and method for early warning abnormity of online moisture meter in key process of wire making Download PDFInfo
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- 241000208125 Nicotiana Species 0.000 description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 6
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/39—Tobacco feeding devices
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
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Abstract
The invention discloses an online moisture meter abnormity early warning system and method for a key silk making process, and the main design concept of the invention is that two online moisture meters are used for online detection, and the setting positions, the distance and the delay time of the two online moisture meters are combined to synchronously acquire the moisture detection results of the two online moisture meters aiming at the same material, so that whether the online moisture meters to be detected are abnormal or not can be found in time in a normal production stage, when an abnormal condition is detected by a core, an early warning signal can be triggered to be output, and a conveying mechanism corresponding to the production process can be controlled to stop running in a specific production stage, so that the energy consumption of a workshop can be saved. The invention can conveniently check the functional stability of the online moisture meter in the production state of the key working procedures of a perfuming machine, a charging machine, sheet drying and the like.
Description
Technical Field
The invention relates to the field of cigarette manufacturing, in particular to an online moisture meter abnormity early warning system and method for a key tobacco processing procedure.
Background
The key control indexes of the process quality in the cigarette shred making link are the material moisture content and the temperature, and for the moisture content, the online infrared moisture meter can realize non-contact continuous and rapid measurement of the material moisture content, so that the online infrared moisture meter is widely applied to each key process control point of the cigarette shred making production line (the key process is defined by actual production scenes) to realize real-time monitoring and feedback of the material moisture content. The moisture content of the cut tobacco is used as an important index in tobacco processing, such as the moisture content of the cut tobacco at the outlet of a cut tobacco dryer, a feeder and a flavoring machine, and the moisture content is related to the processing strength of the next procedure, so that the indexes of the cigarette quality, circumference, suction resistance, hardness, dust content, empty ends and the like in the link of a cigarette-making and packaging machine are finally influenced, and certain influence is also generated on the smoking quality and the smoke release amount of the cigarette.
Therefore, how to ensure that the online moisture meter can truly, objectively and accurately react the moisture of the material is a key focus of process quality control.
At present, an oven method is mainly used for regularly checking an online moisture meter, a microwave moisture meter, an infra-red moisture meter for an infralab710 laboratory, a convection oven drying MT-CA and the like are used for auxiliary verification, and manual judgment is carried out according to a certain check standard.
However, due to the influence of temperature and humidity changes of a workshop, different absorption characteristics of materials, maintenance levels of an online moisture meter manufacturer, manual checking links and the like, deviation between the online moisture meter and a true value of the materials may occur; moreover, since the tobacco shred manufacturing workshop belongs to assembly line operation, the sensory product suction link and the moisture inspection of the finished cigarette products have hysteresis quality for the inspection work of corresponding batches, and the deviation of the online moisture meter is combined, so that the sensory difference between the corresponding batches is obvious possibly, and the equalization work of the cigarette products is not favorably carried out.
Disclosure of Invention
In view of the above, the present invention aims to provide an online moisture meter abnormality warning system and method for key processes of wire making, so as to solve the aforementioned technical problems.
The technical scheme adopted by the invention is as follows:
first aspect, a system of online moisture meter abnormity early warning of key process of silk making, wherein include: the device comprises an online moisture meter to be tested, a standby online moisture meter, a material conveying mechanism, a timer, an alarm and a data storage module, wherein an input port and an output port of the material conveying mechanism are respectively connected with a feeding roller in the previous process and equipment in the next process;
the online moisture meter to be detected and the standby online moisture meter are both arranged above the material conveying mechanism, and the standby online moisture meter is positioned in front of or behind the online moisture meter to be detected according to the running direction of the material conveying mechanism; a preset distance is reserved between the online moisture meter to be detected and the standby online moisture meter;
the data storage module is used for storing the detection data of the online moisture meter to be detected or the standby online moisture meter;
the timer is used for setting the data delay reading duration;
the original machine controller is connected with the material conveying mechanism and the alarm through electric signals and is used for sending a stop signal to the material conveying mechanism and sending a trigger signal to the alarm so that the alarm outputs early warning information.
In at least one possible implementation manner, the early warning system further includes: and the roller rotating speed detection unit is connected with the original machine controller through an electric signal and is used for detecting the rotating speed of the feeding roller in the previous process.
In at least one possible embodiment, a first level detector and a second level detector are respectively arranged above the inlet and outlet of the material conveying device.
In at least one possible implementation manner, the first material level detector and the second material level detector are both infrared distance measuring instruments.
In at least one possible implementation manner, the timer is any one of the following: electronic timer, clock module, time delay relay.
In at least one possible implementation manner, the early warning system further comprises a trigger button electrically connected with the original machine controller, and the trigger button is used for providing an on-off signal of the abnormity early warning function.
The second aspect is an online moisture meter abnormity early warning method for a key silk making process, which comprises the following steps:
acquiring the rotating speed of the roller after detecting that the starting condition of the early warning function is triggered;
and judging the current production state according to the rotating speed of the roller:
when the current state of normally conveying materials is judged according to the rotating speed of the roller, the detection data of the online moisture meter to be detected or the standby online moisture meter is collected and stored;
based on preset data delay reading duration, synchronously reading the moisture detection values of the online moisture meter to be detected and the standby online moisture meter for the same material;
judging whether the online moisture meter to be detected is abnormal or not according to the comparison result of the moisture detection values of the two moisture meters;
if the abnormal condition exists, outputting an early warning signal;
when the roller is judged to be in a standby state or a material pouring state according to the rotating speed of the roller, material level signals of the material conveying inlet and/or the material conveying outlet are obtained;
and triggering material conveying to stop according to the relation between the material level signal and a preset material level threshold value.
In at least one possible implementation manner, the method further includes: after the material conveying machine is triggered to stop, if the fluctuation of the indicating value of the online moisture meter to be detected is detected, an early warning signal is output.
The main design concept of the invention is that the two online moisture meters are used for online detection, and the setting positions, the distance and the delay time of the two online moisture meters are combined to synchronously acquire the moisture detection results of the two online moisture meters aiming at the same material, so that whether the online moisture meters to be detected are abnormal or not can be found in time in the normal production stage, when the abnormal condition is detected by a check, an early warning signal can be triggered to be output, and the conveying mechanism corresponding to the production process can be controlled to stop running in the specific production stage, so that the energy consumption of a workshop can be saved. The invention can conveniently check the functional stability of the online moisture meter in the production state of the key working procedures of flavoring machine, charging machine, thin plate drying and the like.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an online moisture meter abnormality early-warning system in a key process of wire making according to an embodiment of the present invention;
fig. 2 is a flowchart of an online moisture meter abnormality early warning method in a key process of wire making according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention provides an embodiment of an online moisture meter abnormity early warning system in a key silk making process, which is specifically shown in figure 1 and comprises the following steps: the device comprises an online moisture meter 1 to be tested, a standby online moisture meter 2, a material conveying mechanism 3 (which can be a belt or a vibrating conveyor according to different processes), a timer, an alarm and a data storage module, wherein an input port and an output port of the material conveying mechanism 3 are respectively connected with a feeding roller 100 in the previous process and a device 200 in the next process;
the online moisture meter 1 to be detected is arranged above the material conveying mechanism 3 and is used for participating in control feedback of the original silk making process;
the standby online moisture meter 2 is arranged above the material conveying mechanism 3 and is positioned in front of or behind the online moisture meter 1 to be tested (shown as an example positioned behind the moisture meter to be tested) according to the running direction of the material conveying mechanism 3; a preset distance is reserved between the online moisture meter 1 to be tested and the standby online moisture meter 2;
the data storage module is used for storing detection data (which can be determined according to the sequence position of the online moisture meter 1 to be detected or the standby online moisture meter 2);
in order to synchronize the detection data of the online moisture meter 1 to be detected and the standby online moisture meter 2, the timer can set the data delay reading time length, that is, the time length can be set so that the detection data of the online moisture meter 1 and the standby online moisture meter are for the same material, and understandably, the setting of the data delay reading time length is related to the preset interval and the running speed of the material conveying mechanism 3. In practical operation, the aforementioned timer can be implemented by using a mode such as an electronic timer, a clock module, a delay relay, etc.
In the connection, it can be understood that, except for the electric signal connection with the online moisture meter 1 to be tested, the standby online moisture meter 2, the timer and the data storage module, the original machine controller is respectively connected with the material conveying mechanism 3 and the alarm through the electric signal connection, and is used for sending a stop signal to the material conveying mechanism 3 and sending a trigger signal to the alarm, so that the alarm outputs early warning information.
In the stage of normally conveying materials in two processes, the online moisture meter 1 to be detected collects the moisture of the materials which need to participate in the conventional control of the production process, and the standby moisture meter 2 is used as a reference source of moisture detection values, so that the two moisture meters are of the same type, need to be set and the like, and can compare the moisture values detected by the two moisture meters aiming at the same material object, so that the online moisture meter 1 to be detected can be checked on line if the moisture meters are abnormal.
The comparison method of the to-be-detected and the standby belongs to a mature technology, for example, but not limited to, the relationship between the numerical deviation of the two and the preset upper and lower deviation thresholds (the corresponding required thresholds can be calculated according to historical data of different brands in advance) can be directly compared, and the relationship between the abnormal deviation frequency and the preset frequency (for example, 5 times, which can be realized by a counting module connected with the original machine controller) is combined, so that an early warning signal can be sent out by an alarm to prompt an online operator to pay attention and check in time. The invention relates to a method for checking two instruments with the same specification, which belongs to a mature technology, and is not limited in the invention, but the other function of designing a standby online moisture meter is that if the online moisture meter to be tested is abnormal, the standby online moisture meter can be started to take over the original online moisture meter to be tested, so that a convenient condition is provided for online production without shutdown.
Further, the early warning system may further include a drum rotation speed detection unit electrically connected to the original machine controller, for detecting a rotation speed of the feeding drum 100 in the previous process, where the rotation speed signal may assist in characterizing the aforementioned "stage of normally conveying materials in two processes", for example, detecting that the rotation speed of the drum is increased (for example, the normal state of the sheet drying process is 9 r/min), at this time, the material conveying mechanism is triggered to operate, the materials are conveyed to the next process, and at this time, the moisture data may be collected and subjected to moisture meter verification processing. On the basis of this concept, a first level detector 4 and a second level detector 5 (both preferably infrared distance measuring devices) can also be arranged above the inlet and outlet of the material conveying device 3 in order to trigger a shutdown of the material conveying device in the non-moisture meter calibration phase in conjunction with the drum state. The following examples are given here for reference:
the detection signal of the roller rotating speed detection unit represents that the roller rotating speed ratio is low (if the roller rotating speed ratio is at or below 6 r/min), at the moment, the first material level detector and the second material level detector detect that the height of the material is at a certain set limiting value or the height change does not exceed a certain set specified value, and at the moment, the original machine controller can trigger the material conveying mechanism to stop running; or the detection signal of the roller rotating speed detection unit indicates that the roller is in a 'material pouring' state, namely the rotating speed of the roller is relatively too high (for example, at or above 15 r/min), and the material height detected by the second material level detector reaches a low limit, so that the conveying stop is triggered.
It should be noted here that, in consideration of triggering the material transportation stop, not only for saving energy, but also for checking the online moisture meter to be tested from another angle, that is, once the material transportation mechanism is triggered to stop, if the fluctuation of the indication value of the online moisture meter to be tested is detected at this stage, the abnormality of the moisture meter is also indicated, and the alarm can be triggered to prompt the relevant personnel to pay attention.
Finally, it can also be supplemented that, in some preferred embodiments, the early warning system further includes a trigger button electrically connected to the original machine controller, and the trigger button can be used as a trigger mechanism for starting and stopping the functions of the system, for example, in a workshop, the device is in an equipment maintenance or maintenance state, and is not suitable for on-line moisture meter calibration processing, and may trigger an alarm by mistake to output an early warning signal, so that the trigger button can be operated to cut off the corresponding detection early warning function; on the contrary, when the moisture meter needs to be checked online, the trigger button can be operated to start the functions.
In combination with the foregoing embodiments, there is provided an embodiment of a preferred complete warning method, as shown in fig. 2, including:
s1, acquiring the rotating speed of a roller after detecting that the starting condition of the early warning function is triggered;
s2, judging the current production state according to the rotating speed of the roller:
s31, collecting and storing detection data of the online moisture meter to be detected or the standby online moisture meter when the current state of normally conveying materials is judged according to the rotating speed of the roller;
s310, based on preset data delay reading duration, synchronously reading the moisture detection value of the online moisture meter to be detected or a standby online moisture meter on the same material;
step S311, judging whether the online moisture meter to be detected is abnormal or not according to the comparison result of the moisture detection values of the two moisture meters;
if the abnormal condition exists, executing step S312 and outputting an early warning signal;
s32, when the roller is judged to be in a standby state or a material pouring state according to the rotating speed of the roller, a material level signal of the material conveying inlet and/or the material conveying outlet is obtained;
and step S320, triggering material conveying to stop according to the relation between the material level signal and a preset material level threshold value.
Further, the early warning method further comprises the following steps: after the material conveying machine is triggered to stop, if the fluctuation of the indication value of the online moisture meter to be detected is detected, an early warning signal is output.
With regard to the foregoing mechanism for storing detection data, a specific example is given here for explanation: according to the installation positions of the online moisture meter to be detected and the standby online moisture meter relative to the material conveying direction, only the detection data with the front relative position can be stored. For example, only the detection data of the moisture meter at the front position needs to be stored, and after the data is detected by the moisture meter at the back position, the detection data of the moisture meter at the front position is read from the storage module according to the set delay reading duration, and is compared with the current detection data of the moisture meter at the back position to complete the verification.
In summary, the main design concept of the invention is that the two online moisture meters perform online detection, and the two online moisture meters are combined to set the position, the distance and the delay time, so as to synchronously acquire the moisture detection results of the two online moisture meters for the same material, thereby being capable of timely finding whether the online moisture meter to be detected is abnormal in the normal production stage, triggering the output of an early warning signal when the abnormal condition is detected by a check, and controlling the conveying mechanism corresponding to the production process to stop running in the specific production stage, so as to save the energy consumption of a workshop. The invention can conveniently check the functional stability of the online moisture meter in the production state of the key working procedures of a perfuming machine, a charging machine, sheet drying and the like.
In the embodiments of the present invention, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
The structure, features and effects of the present invention have been described in detail with reference to the embodiments shown in the drawings, but the above embodiments are merely preferred embodiments of the present invention, and it should be understood that technical features related to the above embodiments and preferred modes thereof can be reasonably combined and configured into various equivalent schemes by those skilled in the art without departing from and changing the design idea and technical effects of the present invention; therefore, the invention is not limited to the embodiments shown in the drawings, and all the modifications and equivalent embodiments that can be made according to the idea of the invention are within the scope of the invention as long as they are not beyond the spirit of the description and the drawings.
Claims (8)
1. The utility model provides an unusual early warning system of online moisture meter of key process of making silk, its characterized in that includes: the device comprises an online moisture meter to be tested, a standby online moisture meter, a material conveying mechanism, a timer, an alarm and a data storage module, wherein an input port and an output port of the material conveying mechanism are respectively connected with a feeding roller in the previous process and equipment in the next process;
the online moisture meter to be detected and the standby online moisture meter are both arranged above the material conveying mechanism, and the standby online moisture meter is positioned in front of or behind the online moisture meter to be detected according to the running direction of the material conveying mechanism; a preset distance is reserved between the online moisture meter to be detected and the standby online moisture meter;
the data storage module is used for storing the detection data of the online moisture meter to be detected or the standby online moisture meter;
the timer is used for setting data delay reading duration;
the original machine controller is connected with the material conveying mechanism and the alarm through electric signals and is used for sending a stop signal to the material conveying mechanism and sending a trigger signal to the alarm so that the alarm outputs early warning information.
2. The on-line moisture meter abnormality warning system for the key process of wire making according to claim 1, wherein the warning system further comprises: and the roller rotating speed detection unit is connected with the original machine controller through an electric signal and is used for detecting the rotating speed of the feeding roller in the previous process.
3. The on-line moisture meter abnormality warning system for the key process of making filaments according to claim 2, wherein a first material level detector and a second material level detector are respectively arranged above the input port and the output port of the material conveying mechanism.
4. The on-line moisture meter abnormality early-warning system for the key process of making the filaments according to claim 3, wherein the first material level detector and the second material level detector are both infrared distance meters.
5. The on-line moisture meter abnormality warning system for the key process of wire making according to claim 1, wherein the timer is any one of the following: electronic timer, clock module, time delay relay.
6. The on-line moisture meter abnormality early-warning system in the key process of the wire making according to any one of claims 1 to 5, characterized in that the early-warning system further comprises a trigger button in electrical signal connection with an original machine controller for providing an on-off signal of an abnormality early-warning function.
7. The online early warning method for the abnormity of the moisture meter in the key process of wire making is characterized by comprising the following steps of:
acquiring the rotating speed of the roller after detecting that the starting condition of the early warning function is triggered;
and judging the current production state according to the rotating speed of the roller:
when the current state of normally conveying materials is judged according to the rotating speed of the roller, the detection data of the online moisture meter to be detected or the standby online moisture meter is collected and stored;
based on preset data delay reading duration, synchronously reading the moisture detection values of the online moisture meter to be detected and the standby online moisture meter on the same material;
judging whether the online moisture meter to be detected is abnormal or not according to the comparison result of the moisture detection values of the two moisture meters;
if the abnormal condition exists, outputting an early warning signal;
when the roller is judged to be in a standby state or a material pouring state according to the rotating speed of the roller, a material level signal of the material conveying inlet and/or the material conveying outlet is obtained;
and triggering material conveying to stop according to the relation between the material level signal and a preset material level threshold value.
8. The on-line moisture meter abnormality warning method for the key silk making process according to claim 7, further comprising: after the material conveying machine is triggered to stop, if the fluctuation of the indication value of the online moisture meter to be detected is detected, an early warning signal is output.
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| CN117675430A (en) * | 2023-11-10 | 2024-03-08 | 钛玛科（北京）工业科技有限公司 | Near infrared moisture monitoring method and system |
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| CN218499967U (en) * | 2022-08-28 | 2023-02-21 | 红云红河烟草(集团)有限责任公司 | Online moisture meter abnormity early warning system for key process of wire making |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117675430A (en) * | 2023-11-10 | 2024-03-08 | 钛玛科（北京）工业科技有限公司 | Near infrared moisture monitoring method and system |
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