A device and method for automatic task flow of a silk production line

Abstract

The application discloses a device and method for automatic task circulation of a cut tobacco production line, and relates to the technical field of paper cigarette manufacturing. The device comprises a controller, a material preparation button, a premix storage cabinet, a first conveying device, a feeding machine, a vibration unit, a roller, a second conveying device, a cabinet entry distribution vehicle, a tobacco leaf storage cabinet, a temperature sensor on the roller, a first electronic scale on the first conveying device, a second electronic scale on the second conveying device, front and rear photoelectric switches on the feeding machine, and a material preparation module and a material adding module. The material preparation module is used for the controller to learn that the material preparation button is pressed to generate a material preparation task state in progress and start a material preparation device, learn that both photoelectric switches are blocked to generate a completed material preparation sign, and learn that the hot air temperature meets the standard to generate a completed roller preheating sign. The method comprises the steps of material preparation and material adding, and the like, the material adding device is started when there is no material adding task and the roller preheating sign and the material preparation sign are both completed, and the like, so that the cut tobacco production control efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing technology, and in particular to an apparatus and method for automatically managing tasks on a cigarette production line. Background Technology

[0002] The author conducted a search using the query TACD_ALL:(filament making AND material preparation AND feeding AND automatic), and obtained the following similar existing technical solutions.

[0003] The authorization announcement number is CN201876731U, and the name is "Automated Control System for Tobacco Manufacturing." It includes a MES control unit, a high-bay warehouse central control unit, a tobacco processing central control unit, a cigarette making and packaging data acquisition unit, a feedback unit, material preparation and unpacking equipment, tobacco processing equipment, cigarette making and connecting equipment, packaging equipment, and carton sealing equipment. The MES control unit connects to the high-bay warehouse central control unit, the tobacco processing central control unit, and the cigarette making and packaging data acquisition unit. The high-bay warehouse central control unit connects to the material preparation and unpacking equipment, and the tobacco processing central control unit connects to the tobacco processing equipment, controlling and adjusting the operation of the tobacco processing equipment in real time and collecting relevant production process data, which is then fed back to the MES control unit in real time. The cigarette making and packaging data acquisition unit connects to the cigarette making equipment, packaging equipment, and carton sealing equipment, collecting their operational data in real time and feeding it back to the MES control unit promptly. The tobacco processing equipment includes leaf processing equipment, leaf filament processing equipment, stem and stem filament processing equipment, and flavoring and additive processing equipment. The material preparation and unpacking equipment, tobacco processing equipment, cigarette making and connecting equipment, packaging equipment, and carton sealing equipment are connected sequentially. By controlling the entire tobacco production process, it is possible to monitor and adjust each stage of tobacco production in real time, and make adjustments based on real-time data, thereby achieving automatic evaluation of process quality and greatly increasing equipment production efficiency and product qualification rate.

[0004] The authorized announcement number is CN202697671U, and the name is "A Combined Tobacco Processing System." It includes a group preparation processing unit, a vacuum rehydration processing unit, a loose rehydration processing unit, a leaf feeding processing unit, a shredding processing unit, a drying processing unit, a leaf flavoring processing unit, and a blending processing unit. Any two of these units are connected via a contactless, power-operated AGV laser-guided transport vehicle. This invention, by setting up these units, allows for customized production processes based on customer needs, adjusting the layout of processing units, and preventing the entire production line from shutting down due to a malfunction in one unit, thus improving enterprise production efficiency.

[0005] Based on the two patent documents mentioned above and existing technical solutions, the inventors analyze the existing technical solutions as follows.

[0006] Production process introduction:

[0007] The yarn processing workshop production line is a multi-stage assembly line, including blade production, yarn production, and blending and flavoring sections. Taking the blade production section as an example, it mainly consists of a blade storage tank (top tank), belt conveyors, a feeder, a measuring tube, an electronic belt scale, a vibrating conveyor, rollers, and a feeding system. The blade feeding process is as follows: material is discharged from the bottom of the blade storage tank, passes through multiple belt conveyors, and enters the feeder. After being quantitatively fed through the measuring tube, it enters the electronic belt scale, and at a constant material flow rate, it passes through the vibrating conveyor and enters the rollers for blade feeding. From a process task perspective, the blade production section can be divided into two task units. The first task unit is from discharging material from the storage tank to entering the feeder's hopper for preparation. The second task unit is from discharging material from the feeder's lifting belt to entering the feeding rollers, and then entering the next-level storage tank.

[0008] Production operations before improvement:

[0009] The yarn production line can be divided into multiple task units. The company-level production scheduling system breaks down the production plan to each task unit. The production grade and batch number of each task unit can be automatically issued to the yarn production management system of the central control unit by the company-level production scheduling system. Operators can select work orders for each unit, issue formula parameters, and start and end work orders in the yarn production management system. In the current actual production process of the blade production section, the feeder hopper needs to prepare materials, and the feeding roller needs to be preheated, both of which take approximately the same amount of time. To save time, the work orders for these two task units need to be issued at the same time. The operator clicks the line start button, and the rollers begin preheating according to the set process parameters. Then, the operator clicks the start button for the material preparation work order, after which the storage tank discharges material, and the conveying equipment on the process path starts. The material enters the feeder hopper for preparation, which takes about ten minutes. Meanwhile, the rollers preheat for ten minutes and then enter standby mode. After the rollers have finished preheating and the hopper is full, the operator clicks the start button for the material feeding work order, and the equipment behind the rollers starts running. When production ends, the operator sees that the storage tank has discharged all the material and the feeder hopper is empty, and then manually ends the material preparation work order. The operator ends the material feeding work order after the rollers have discharged all the material.

[0010] To improve production efficiency and meet the needs of operators to prepare materials in advance during preheating, the complete feeding task unit, namely, storage tank discharge—feeding machine supply—drum filling—storage tank entry, is divided into two task units, with the bottom belt of the feeder as the node: the material preparation task unit and the feeding task unit. These two units can start and end separately. In order to improve production efficiency, it often happens during the production process that the material preparation unit has already started the next batch of tasks, while the current task of the feeding unit is being executed.

[0011] 1. Preheating of the feeding unit drum

[0012] After the operator clicks the work order task button, they can select the work order to be produced in the pop-up dialog box. This work order is decomposed into production plans by the company-level production scheduling system and distributed to various task units, and then sent to the production management system of the yarn-making center. After selecting, issuing, and releasing, the work order data, including brand ID, batch number, sequence number, and process parameters, is written to the field PLC.

[0013] After selecting the discharge and infeed cabinets, the operator clicks the line start button. The feeding drum begins preheating. At this time, the equipment preheats according to the set process parameters, including the drum drive frequency, circulating fan frequency, and return air temperature setting. The drum and exhaust system start running, and the corresponding valves activate, but other equipment in the path does not operate. During the preheating period, pre-filling preparations for the feeding system should be made.

[0014] 2. Manually start and end two unit tasks.

[0015] (1) Material preparation unit begins

[0016] After the operator clicks the "Start Task" button on the material preparation section work order, the storage tank dispenses material, which is equivalent to manually clicking "Start Material Preparation Unit" and starting the conveyor equipment on the process path. The material enters the front end of the feeder's hopper for preparation. The hopper has multiple photoelectric switches at the front, middle, and rear. When the front high-position photoelectric switch is blocked, the feeder's bottom belt moves backward. When the front photoelectric switch is exposed, the bottom belt stops and continues preparing material until the rear high-position photoelectric switch is blocked, indicating that material preparation is complete. When the hot air temperature reaches the target, the roller preheating completion indicator is triggered, and the roller equipment enters the material waiting state.

[0017] (2) Feeding unit starts

[0018] Once the operator detects that the drum preheating and silo material preparation are complete, they click "Start Feeding Unit Task." At this point, the equipment from the distribution cart to the drum starts operating sequentially. The feeder's bottom belt moves forward, the lifting belt begins to lift, and the material is stably fed into the feeding drum via the limit tube, low-medium-high position photoelectric switches, and electronic belt scale. At this time, the feeding unit switches to production mode. With a scale flow rate greater than 200KG and the drum running, it enters the initial feeding stage. The liquid material is atomized under the action of the ejector steam and evenly applied to the material. After a delay, it enters the production stage and feeds into the selected storage tank.

[0019] (3) The material preparation unit is completed and the next batch of materials is prepared in advance.

[0020] When the operator finds that the feeder hopper is empty, for example through video monitoring, on-site telephone communication, or a no-material signal from the hopper, and the storage tank has already discharged all the tobacco leaves, the operator manually ends the material preparation unit task.

[0021] The next batch of material preparation units will also require manual intervention.

[0022] (4) End of feeding unit

[0023] If the operator finds that the roller is empty and the material feeding has been completed, the operator should manually end the feeding unit task.

[0024] Existing technical issues and considerations:

[0025] How to solve the technical problem of low control efficiency in silk production. Summary of the Invention

[0026] This invention provides a device and method for automatic task flow in a silk production line, solving the technical problem of low control efficiency in silk production.

[0027] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0028] An automatic task flow device for a tobacco processing production line includes a controller, a material preparation button connected to the controller, a premixed storage tank, a first conveying device, a feeder, a vibration unit, a roller, a second conveying device, a distribution cart for tobacco leaves, and a tobacco storage tank. It also includes a temperature sensor mounted on the roller, a first electronic scale on the first conveying device, a second electronic scale on the second conveying device, a front-end photoelectric switch and a rear-end photoelectric switch on the feeder for detecting the material preparation height, a material preparation module, and a feeding module, all connected to the controller. The material preparation module is used to: generate an in-progress material preparation task status when the controller detects that the material preparation button has been pressed; and activate the premixed storage tank, the first conveying device, the feeder, and the roller. When the controller detects that both the front-end and rear-end photoelectric switches are blocked, it generates a completed material preparation indicator. When the controller detects that the hot air temperature has reached the target, it generates a completed roller preheating indicator. The feeding module is used by the controller to: detect the status of a feeding task; and activate the vibration unit, the roller, the second conveying device, the distribution cart for tobacco leaves, and the tobacco storage tank when there is no feeding task and both the roller preheating indicator and the material preparation indicator are complete.

[0029] A further technical solution is: a material preparation module, which is also used to notify the controller when the material preparation button is pressed, to notify the controller when the front photoelectric switch is blocked, to notify the controller when the rear photoelectric switch is blocked, and to notify the controller when the temperature sensor obtains the temperature of the hot air inside the drum.

[0030] A further technical solution is that the material preparation module is also used by the first electronic scale to know the quality of the material passing through and inform the controller. When the controller knows that no material has flowed through and that the front-end photoelectric switch and the rear-end photoelectric switch are not blocked, it generates a completed material preparation task status.

[0031] A further technical solution is as follows: The feeding module is also used by the controller to obtain the data of the feeding task quality in the feeding task. The second electronic scale learns the quality of the material passing through and informs the controller. The controller calculates the cumulative quality of the material passing through the second electronic scale based on the material passing time of the second electronic scale. When the controller learns that the cumulative quality of the material is equal to the quality of the feeding task, it generates the status of the completed material preparation task. The controller obtains the status of the completed material preparation task and pauses the premixed storage tank, the first conveying equipment, the feeder and the roller.

[0032] A further technical solution is that the feeding module is also used to obtain the material quality inside the tobacco storage cabinet and inform the controller. When the controller knows that the material quality inside the tobacco storage cabinet is equal to the feeding task quality, it generates a completed feeding task status. When the controller obtains the completed feeding task status, it pauses the vibration unit, roller, second conveyor, cabinet distribution vehicle and tobacco storage cabinet.

[0033] A further technical solution is as follows: the material preparation button is electrically connected and communicates with the controller; the controller is electrically connected and communicates with the control terminal of the premixed storage tank; the controller is electrically connected and communicates with the control terminal of the first conveying device; the controller is electrically connected and communicates with the control terminal of the feeder; the controller is electrically connected and communicates with the control terminal of the vibration unit; the controller is electrically connected and communicates with the control terminal of the roller; the controller is electrically connected and communicates with the control terminal of the second conveying device; the controller is electrically connected and communicates with the control terminal of the cabinet distribution vehicle; and the controller is electrically connected and communicates with the control terminal of the tobacco storage tank.

[0034] A further technical solution is as follows: the temperature sensor is electrically connected to and communicates with the controller; the first electronic scale is electrically connected to and communicates with the controller; the second electronic scale is electrically connected to and communicates with the controller; the front-end photoelectric switch is electrically connected to and communicates with the controller; and the rear-end photoelectric switch is electrically connected to and communicates with the controller.

[0035] A further technical solution is that: both the first conveying equipment and the second conveying equipment are conveyor belt conveyors, and both the first electronic scale and the second electronic scale are electronic belt scales.

[0036] A further technical solution involves using an industrial computer as the controller and a vibration unit as a vibration groove.

[0037] A method for automatic task flow in a filament production line, based on the aforementioned device, includes material preparation and feeding steps. The material preparation step involves: a pressed material preparation button informing the controller; the controller, upon receiving the button press, generates a material preparation task status and activates the premixed storage tank, the first conveyor, the feeder, and the roller; a front-end photoelectric switch being blocked informing the controller, and a rear-end photoelectric switch being blocked informing the controller; when the controller detects that both the front-end and rear-end photoelectric switches are blocked, a material preparation completion indicator is generated; a temperature sensor obtains the hot air temperature inside the roller and informs the controller; when the controller detects that the hot air temperature has reached the target, a roller preheating completion indicator is generated; a first electronic scale obtains the mass of the material passing through and informs the controller; when the controller detects that no material has flowed through and both the front-end and rear-end photoelectric switches are unblocked, a material preparation task status is generated. The feeding step involves the controller receiving the feeding task status; when no material is being fed... When both the drum preheating indicator and the material preparation indicator are completed, the controller sequentially starts the vibration unit, drum, second conveyor, cabinet distribution vehicle, and tobacco storage cabinet. The controller obtains the material feeding task quality data in the feeding task. The second electronic scale obtains the material quality passing through and informs the controller. The controller calculates the cumulative material quality passing through the second electronic scale based on the material passing time. When the controller knows that the cumulative material quality equals the material feeding task quality, it generates a completed material preparation task status. Upon obtaining the completed material preparation task status, the controller pauses the premixed storage cabinet, the first conveyor, the feeder, and the drum. The tobacco storage cabinet obtains the material quality inside and informs the controller. When the controller knows that the material quality inside the tobacco storage cabinet equals the material feeding task quality, it generates a completed feeding task status. Upon obtaining the completed feeding task status, the controller pauses the vibration unit, drum, second conveyor, cabinet distribution vehicle, and tobacco storage cabinet.

[0038] The beneficial effects of adopting the above technical solution are as follows:

[0039] First, an automatic task flow device for a tobacco processing production line includes a controller, a material preparation button connected to the controller, a premixed storage tank, a first conveying device, a feeder, a vibration unit, a roller, a second conveying device, a distribution cart for entering the storage tank, and a tobacco storage tank. It also includes a temperature sensor mounted on the roller, a first electronic scale on the first conveying device, a second electronic scale on the second conveying device, a front-end photoelectric switch and a rear-end photoelectric switch on the feeder for detecting the material preparation height, a material preparation module, and a feeding module, all connected to the controller. The material preparation module is used to: generate a material preparation task status when the controller detects that the material preparation button has been pressed; and start the premixed storage tank, the first conveying device, the feeder, and the roller. When the controller detects that both the front-end and rear-end photoelectric switches are blocked, it generates a completed material preparation indicator. When the controller detects that the hot air temperature has reached the target, it generates a completed roller preheating indicator. The feeding module is used to: detect the feeding task status; and when there is no feeding task and both the roller preheating indicator and the material preparation indicator are complete, start the vibration unit, the roller, the second conveying device, the distribution cart for entering the storage tank, and the tobacco storage tank. The premixed storage tank, the first conveying equipment, and the feeder form a material preparation device, while the vibration unit, the roller, the second conveying equipment, the box-in distribution vehicle, and the tobacco storage tank form a feeding device. This technical solution enables the feeding device to be activated when there is no feeding task and both the roller preheating indicator and the material preparation indicator are completed, thus achieving high efficiency in tobacco production control.

[0040] Second, a method for automatic task flow in a filament production line, based on the aforementioned device, includes material preparation and feeding steps. The material preparation step involves: a pressed material preparation button informing the controller; the controller, upon receiving the button press, generates a material preparation task status; the controller then activates the premixed storage tank, the first conveyor, the feeder, and the roller; a front-end photoelectric switch being blocked informing the controller, and a rear-end photoelectric switch being blocked informing the controller; when the controller detects that both the front-end and rear-end photoelectric switches are blocked, a material preparation completion indicator is generated; a temperature sensor obtains the hot air temperature inside the roller and informs the controller; when the controller detects that the hot air temperature has reached the target, a roller preheating completion indicator is generated; a first electronic scale obtains the mass of the passing material and informs the controller; when the controller detects that no material has flowed and both the front-end and rear-end photoelectric switches are unblocked, a material preparation task status is generated. The feeding step involves: the controller receiving the feeding task status; when no material is being fed... When a feeding task is initiated and both the drum preheating and preparation indicators are complete, the controller sequentially starts the vibration unit, drum, second conveyor, distribution cart, and tobacco storage tank. The controller obtains data on the feed quality during the feeding task. The second electronic scale detects the mass of material passing through and informs the controller. The controller calculates the cumulative mass of material passing through the second electronic scale based on its throughput time. When the controller determines that the cumulative mass equals the feed quality, it generates a "completed preparation task" status. Upon receiving this status, the controller pauses the premixed storage tank, the first conveyor, the feeder, and the drum. The tobacco storage tank detects the mass of material within and informs the controller. When the controller determines that the mass of material in the tobacco storage tank equals the feed quality, it generates a "completed feeding task" status. Upon receiving this status, the controller pauses the vibration unit, drum, second conveyor, distribution cart, and tobacco storage tank. This technical solution achieves high efficiency in tobacco processing production control by starting the feeding device when there is no feeding task and both the drum preheating and preparation indicators are complete.

[0041] See the detailed implementation section for further description. Attached Figure Description

[0042] Figure 1 This is a principle block diagram of Embodiment 1 of the present invention;

[0043] Figure 2 This is a flowchart of Embodiment 2 of the present invention. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] Example 1:

[0047] like Figure 1 As shown, the present invention discloses an automatic task flow device for a tobacco processing production line, comprising a controller, a material preparation button, a premixed storage tank, a first conveying device, a feeder, a vibration unit, a roller, a second conveying device, a cabinet distribution vehicle and a tobacco storage tank, as well as a material preparation module and a feeding module. A temperature sensor is installed on the roller, a first electronic belt scale is installed on the first conveying device, a second electronic belt scale is installed on the second conveying device, and a front-end photoelectric switch and a rear-end photoelectric switch for knowing the material preparation height are installed on the feeder.

[0048] like Figure 1 As shown, the controller is electrically connected and communicates with the material preparation button, the premix storage tank, the first conveying equipment, the feeder, the vibration unit, the roller, the second conveying equipment, the cabinet distribution vehicle, the tobacco storage tank, the temperature sensor, the first electronic belt scale, the second electronic belt scale, the front-end photoelectric switch, and the rear-end photoelectric switch, respectively. Specifically, the material preparation button is electrically connected and communicates with the controller; the controller is electrically connected and communicates with the control terminal of the premix storage tank; the controller is electrically connected and communicates with the control terminal of the first conveying equipment; the controller is electrically connected and communicates with the control terminal of the feeder; the controller is electrically connected and communicates with the control terminal of the vibration unit; the controller is electrically connected and communicates with the control terminal of the roller; the controller is electrically connected and communicates with the control terminal of the second conveying equipment; the controller is electrically connected and communicates with the control terminal of the cabinet distribution vehicle; the controller is electrically connected and communicates with the control terminal of the tobacco storage tank; the temperature sensor is electrically connected and communicates with the controller; the first electronic belt scale is electrically connected and communicates with the controller; the second electronic belt scale is electrically connected and communicates with the controller; the front-end photoelectric switch is electrically connected and communicates with the controller; and the rear-end photoelectric switch is electrically connected and communicates with the controller.

[0049] The material preparation module is used to notify the controller when the material preparation button is pressed. Upon receiving this notification, the controller generates a status indicating that the material preparation task is in progress and activates the premixed storage tank, the first conveyor, the feeder, and the roller. The front-end photoelectric switch and the rear-end photoelectric switch are both notified when they are blocked. When the controller detects that both front-end and rear-end photoelectric switches are blocked, it generates a completion indicator. A temperature sensor obtains the hot air temperature inside the roller and informs the controller. When the controller detects that the hot air temperature has reached the target, it generates a completion indicator for roller preheating. A first electronic belt scale detects the mass of passing material and informs the controller. When the controller detects that no material is flowing through and both front-end and rear-end photoelectric switches are unblocked, it generates a completion indicator for the material preparation task.

[0050] The feeding module is used by the controller to obtain the status of the feeding task. When there is no feeding task and both the drum preheating indicator and the material preparation indicator are complete, the controller sequentially starts the vibration unit, drum, second conveyor, inlet distribution vehicle, and tobacco storage tank. The controller obtains the data of the feeding task's feed quality. The second electronic belt scale obtains the mass of the material passing through and informs the controller. The controller calculates the cumulative mass of the material passing through the second electronic belt scale based on the material passing time. When the controller knows that the cumulative mass of the material equals the feed task mass, it generates a completed material preparation task status. Upon obtaining the completed material preparation task status, the controller pauses the premixed storage tank, the first conveyor, the feeder, and the drum. The tobacco storage tank obtains the mass of the material inside and informs the controller. When the controller knows that the mass of the material inside the tobacco storage tank equals the feed task mass, it generates a completed feeding task status. Upon obtaining the completed feeding task status, the controller pauses the vibration unit, drum, second conveyor, inlet distribution vehicle, and tobacco storage tank.

[0051] Among them, the controller is an industrial computer, and the premixed storage tank, the first conveying equipment, the feeder, the vibration unit, the roller, the second conveying equipment, the cabinet distribution vehicle and the tobacco storage tank itself, as well as the corresponding communication connection technology, are existing technologies and will not be described in detail here.

[0052] The focus of this application is on the improvement of control methods, which enhances the production and control efficiency of the company's yarn-making process.

[0053] Example 2:

[0054] like Figure 2 As shown, this invention discloses a method for automatic task flow in a silk-making production line. The apparatus based on Embodiment 1 includes the steps of material preparation and feeding:

[0055] The material preparation steps include: the pressed material preparation button notifies the controller; the controller, upon receiving the notification that the material preparation button has been pressed, generates a material preparation task status and starts the premixed storage tank, the first conveyor, the feeder, and the roller; the front-end photoelectric switch and the rear-end photoelectric switch are both notified to the controller when they are blocked; when the controller receives notification that both the front-end and rear-end photoelectric switches are blocked, it generates a completed material preparation indicator; the temperature sensor obtains the hot air temperature inside the roller and informs the controller; when the controller receives notification that the hot air temperature has reached the target, it generates a completed roller preheating indicator; the first electronic scale obtains the mass of the material passing through and informs the controller; when the controller receives notification that no material is flowing through and both the front-end and rear-end photoelectric switches are unblocked, it generates a completed material preparation task status.

[0056] The feeding process includes: the controller obtains the status of the feeding task; when there is no feeding task and both the drum preheating indicator and the material preparation indicator are complete, the controller sequentially starts the vibration unit, drum, second conveyor, inlet distribution cart, and tobacco storage tank; the controller obtains the data of the feeding task's feed quality; the second electronic scale obtains the mass of the material passing through and informs the controller; the controller calculates the cumulative mass of the material passing through the second electronic scale based on the material passing time; when the controller knows that the cumulative mass of the material equals the feed task mass, it generates a completed material preparation task status; the controller obtains the completed material preparation task status and pauses the premixed storage tank, the first conveyor, the feeder, and the drum; the tobacco storage tank obtains the mass of the material inside and informs the controller; when the controller knows that the mass of the material inside the tobacco storage tank equals the feed task mass, it generates a completed feeding task status; the controller obtains the completed feeding task status and pauses the vibration unit, drum, second conveyor, inlet distribution cart, and tobacco storage tank.

[0057] Example 3:

[0058] The difference between Example 3 and Example 1 lies in the material preparation module and the material feeding module.

[0059] This invention discloses an automatic task flow device for a tobacco processing production line, comprising a controller, a material preparation button, a premixed storage tank, a first conveying device, a feeder, a vibration unit, a roller, a second conveying device, a cabinet distribution vehicle and a tobacco storage tank, as well as a material preparation module and a feeding module. A temperature sensor is installed on the roller, and a front-end photoelectric switch and a rear-end photoelectric switch are installed on the feeder to detect the material preparation height.

[0060] The material preparation module is used by the controller to generate a material preparation task status when the material preparation button is pressed, and to start the premixed storage tank, the first conveying equipment, the feeder and the roller; when the controller detects that the front-end photoelectric switch and the rear-end photoelectric switch are both blocked, it generates a material preparation completion mark; when the controller detects that the hot air temperature has reached the standard, it generates a roller preheating completion mark.

[0061] The feeding module is used by the controller to obtain the status of the feeding task. When there is no feeding task and both the drum preheating indicator and the material preparation indicator are completed, the vibration unit, drum, second conveyor, cabinet distribution vehicle and tobacco storage cabinet are started.

[0062] These two modules can solve the most basic technical problems and improve the efficiency of silk production control.

[0063] Compared to the above embodiments, the program module can also be a hardware module made using existing logic operation technology to implement the corresponding logic operation steps, communication steps and control steps, thereby realizing the above-mentioned corresponding steps. The logic operation unit is existing technology and will not be described in detail here.

[0064] Improvements:

[0065] 1. Start of material preparation unit

[0066] After the operator clicks the "Start Task" button on the material preparation section work order, the storage tank dispenses material. However, the operator still needs to manually click "Start Material Preparation Unit" to activate the conveyor equipment along the process path. The material enters the front end of the feeder's hopper for preparation. The hopper has multiple photoelectric switches at the front, middle, and rear. When the front high-position photoelectric switch is blocked, the feeder's bottom belt moves backward. When the front photoelectric switch is exposed, the bottom belt stops and continues preparing material until both the front and rear high-position photoelectric switches are blocked. An improvement point is added, triggering the material preparation completion indicator. Another improvement point is added: when the hot air temperature reaches the target, the roller preheating completion indicator is triggered. At this point, the roller equipment enters the waiting state.

[0067] 2. The feeding unit task starts automatically.

[0068] Improvements have been made. The control system first determines if the feeding unit has any tasks in progress. If no tasks are in progress, the control system automatically starts the feeding unit task after the drum preheating completion flag and the silo material preparation completion flag are both set to 1. At this point, the equipment from the distribution cart to the drum starts running sequentially. The feeder's bottom belt moves forward, the lifting belt begins to lift, and the material is stably fed into the feeding drum via the limit tube, low, medium, and high position photoelectric switches, and the electronic belt scale. At this time, the feeding unit switches to production mode. When the scale flow rate is greater than 200KG and the drum is running, it enters the initial feeding stage. The liquid material is atomized under the action of the ejector steam and evenly applied to the material. After a delay, it enters the production stage and feeds into the selected storage tank.

[0069] 3. Completion of material preparation unit and advance preparation of the next batch of materials

[0070] When the following conditions are met simultaneously: the progress bar of the storage tank turns to zero after the storage tank has finished discharging, indicating that the material discharging of the leaf is complete; the photoelectric switches of the feeder's hopper are all on, indicating that the feeder's discharging is complete; the material thickness detector value on the material preparation path is less than the set value, indicating that the path's discharging is complete; the instantaneous flow rate of the belt scale is zero, indicating that the belt scale's discharging is complete; and the belt scale's flow rate is less than 200KG, indicating that the equipment is in the tailing state, indicating that the feeder's status is correct, the material preparation task is considered complete, and the control system automatically ends the material preparation work order task.

[0071] The next batch of material preparation units will also require manual intervention.

[0072] 4. The feeding unit automatically ends.

[0073] When the control system determines that the following conditions are met simultaneously, the material feeding task is considered complete: the moisture meter at the roller outlet is zero; the material thickness detector value on the inlet path is less than the set value, indicating that the material feeding is complete; the instantaneous flow rate of the belt scale is zero, indicating that the material feeding is complete; and the weight of the material entering the cabinet is equal to the cumulative weight of the belt scale. At this time, the control system automatically ends the material preparation work order task.

[0074] Improved production operations:

[0075] Operators only need to preheat the equipment and start the material preparation work order. The completion of the material preparation work order, the start of the material feeding work order, and the completion of the material feeding work order are all handled automatically by the program without manual intervention. This simplifies operation, shortens the time from material preparation to production confirmation, and improves production efficiency.

[0076] After this application had been running internally for a period of time, the beneficial aspects reported by on-site technicians were:

[0077] The device includes a controller, a material preparation button, a premixed storage tank, a first conveying device, a feeder, a vibration unit, a drum, a second conveying device, a cabinet-entry distribution cart, a tobacco storage tank, a temperature sensor on the drum, a first electronic scale on the first conveying device, a second electronic scale on the second conveying device, a front-end photoelectric switch and a rear-end photoelectric switch on the feeder, as well as a material preparation module and a feeding module. The material preparation module is used by the controller to detect when the material preparation button is pressed, indicating an ongoing material preparation task and activating the material preparation device; to detect when both photoelectric switches are blocked, indicating a completed material preparation task; and to detect when the hot air temperature reaches the target, indicating a completed drum preheating task. The method includes material preparation and feeding steps. When there is no feeding task and both the drum preheating and material preparation tasks are completed, the feeding device is activated, etc., achieving high efficiency in tobacco production control.

[0078] Currently, the technical solution of this invention has undergone pilot testing, which is a small-scale trial of the product before large-scale mass production. After the pilot testing was completed, a user survey was conducted on a small scale, and the survey results showed that user satisfaction was high. Now, preparations have begun for the formal production and industrialization of the product (including intellectual property risk warning surveys).

Claims

1. A device for automatic task flow in a tobacco processing production line, comprising a controller, a material preparation button connected to the controller, a premix storage tank, a first conveying device, a feeder, a vibrating unit, a roller, a second conveying device, a distribution cart for tobacco leaves, and a tobacco leaf storage tank, characterized in that: It also includes a temperature sensor mounted on the roller, connected to the controller; a first electronic scale on the first conveyor; a second electronic scale on the second conveyor; a front-end photoelectric switch and a rear-end photoelectric switch on the feeder for determining the material preparation height; and a material preparation module and a feeding module. The material preparation module is used to notify the controller when the material preparation button is pressed. When the controller receives the notification that the material preparation button has been pressed, it generates a material preparation task status and starts the premixed storage tank, the first conveyor, the feeder, and the roller. The front photoelectric switch and the rear photoelectric switch are both notified when they are blocked. When the controller receives the notification that both the front and rear photoelectric switches are blocked, it generates a material preparation completion flag. The temperature sensor obtains the hot air temperature inside the roller and informs the controller. When the controller receives the notification that the hot air temperature has reached the target, it generates a roller preheating completion flag. The first electronic belt scale obtains the mass of the material passing through and informs the controller. When the controller receives the notification that no material is flowing through and both the front and rear photoelectric switches are unblocked, it generates a material preparation task status. The feeding module is used by the controller to obtain the status of the feeding task. When there is no feeding task and both the drum preheating indicator and the material preparation indicator are complete, the controller sequentially starts the vibration unit, drum, second conveyor, inlet distribution vehicle, and tobacco storage tank. The controller obtains the data of the feeding task's feed quality. The second electronic belt scale obtains the mass of the material passing through and informs the controller. The controller calculates the cumulative mass of the material passing through the second electronic belt scale based on the material passing time. When the controller knows that the cumulative mass of the material equals the feed task mass, it generates a completed material preparation task status. Upon obtaining the completed material preparation task status, the controller pauses the premixed storage tank, the first conveyor, the feeder, and the drum. The tobacco storage tank obtains the mass of the material inside and informs the controller. When the controller knows that the mass of the material inside the tobacco storage tank equals the feed task mass, it generates a completed feeding task status. Upon obtaining the completed feeding task status, the controller pauses the vibration unit, drum, second conveyor, inlet distribution vehicle, and tobacco storage tank.

2. The device for automatic task flow in a filament production line according to claim 1, characterized in that: The material preparation button is electrically connected to and communicates with the controller. The controller is electrically connected to and communicates with the control terminal of the premix storage tank. The controller is electrically connected to and communicates with the control terminal of the first conveying equipment. The controller is electrically connected to and communicates with the control terminal of the feeder. The controller is electrically connected to and communicates with the control terminal of the vibration unit. The controller is electrically connected to and communicates with the control terminal of the roller. The controller is electrically connected to and communicates with the control terminal of the second conveying equipment. The controller is electrically connected to and communicates with the control terminal of the cabinet distribution vehicle. The controller is electrically connected to and communicates with the control terminal of the tobacco storage tank.

3. The device for automatic task flow in a silk-making production line according to claim 1, characterized in that: The temperature sensor is electrically connected to and communicates with the controller; the first electronic scale is electrically connected to and communicates with the controller; the second electronic scale is electrically connected to and communicates with the controller; the front-end photoelectric switch is electrically connected to and communicates with the controller; and the rear-end photoelectric switch is electrically connected to and communicates with the controller.

4. The device for automatic task flow in a filament production line according to claim 1, characterized in that: Both the first and second conveying devices are conveyor belt conveyors, and both the first and second electronic scales are electronic belt scales.

5. The device for automatic task flow in a filament production line according to claim 1, characterized in that: The controller is an industrial computer, and the vibration unit is a vibration groove.

6. A method for automatically managing tasks on a silk-making production line, characterized in that: The apparatus according to any one of claims 1 to 5 includes the steps of material preparation and material feeding. The material preparation step involves: a pressed material preparation button informing the controller; the controller, upon receiving the notification that the material preparation button has been pressed, generates a material preparation task status; the controller starts the premixed storage tank, the first conveying device, the feeder, and the drum; a front-end photoelectric switch being blocked informing the controller, and a rear-end photoelectric switch being blocked informing the controller; when the controller receives notification that both the front-end and rear-end photoelectric switches are blocked, a material preparation completion indicator is generated; a temperature sensor obtains the hot air temperature inside the drum and informs the controller; when the controller receives notification that the hot air temperature has reached the target, a drum preheating completion indicator is generated; a first electronic scale obtains the mass of the material passing through and informs the controller; when the controller receives notification that no material has flowed through and both the front-end and rear-end photoelectric switches are unblocked, a material preparation task status is generated. The material feeding step involves: the controller receiving the status of a material feeding task; when there is no material feeding task... When both the drum preheating indicator and the material preparation indicator are complete, the controller sequentially starts the vibration unit, drum, second conveyor, cabinet distribution vehicle, and tobacco storage cabinet. The controller obtains the material feeding task quality data in the feeding task. The second electronic scale obtains the material quality passing through and informs the controller. The controller calculates the cumulative material quality passing through the second electronic scale based on the material passing time. When the controller knows that the cumulative material quality equals the material feeding task quality, it generates a completed material preparation task status. The controller obtains the completed material preparation task status and pauses the premixed storage cabinet, the first conveyor, the feeder, and the drum. The tobacco storage cabinet obtains the material quality inside and informs the controller. When the controller knows that the material quality inside the tobacco storage cabinet equals the material feeding task quality, it generates a completed feeding task status. The controller obtains the completed feeding task status and pauses the vibration unit, drum, second conveyor, cabinet distribution vehicle, and tobacco storage cabinet.

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