A tobacco stream track control device

Abstract

The utility model discloses a tobacco logistics track control device relates to tobacco leaf vacuum backtracking technical field, through in the chain type logistics track of sequential connection, the chain type logistics track of vacuum box, the side portion of chain type logistics track in the chain type logistics track of vacuum box of chain type logistics track of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller type of roller

Description

Technical Field

[0001] This utility model relates to the field of tobacco leaf vacuum tracking technology, and in particular to a tobacco logistics track control device. Background Technology

[0002] The vacuum rehumidifier consists of a vacuum chamber, a vacuum extraction system, a humidification system, a hydraulic system, and a cooling water circulation system. Its working principle is to use a vacuum pump to draw air from the vacuum chamber, achieving a predetermined vacuum level. Then, the humidification system mixes steam and water and introduces it into the chamber as low-pressure wet steam. The tobacco leaves absorb the steam and soften, thus achieving the purpose of heating and humidification.

[0003] The vacuum rehumidifier track logistics system is an auxiliary system that serves the vacuum rehumidifier. It transports stainless steel tobacco frames filled with tobacco leaves to the vacuum chamber of the vacuum rehumidifier and recovers empty tobacco frames from the turning feeder. Its working principle is that the motor driven by the PLC drives the chain to move the stainless steel tobacco frames along the track.

[0004] Before each operation, multiple stainless steel tobacco frames filled with tobacco leaves are sequentially inserted into the vacuum chamber of the vacuum rehumidifier. If the internal track of the vacuum chamber moves too fast during operation, the first stainless steel tobacco frame entering the vacuum chamber will continuously impact the front door of the vacuum chamber, causing the front door of the vacuum chamber to not seal properly. This seriously affects the vacuuming effect of the vacuum chamber, fails to reach the predetermined vacuum level, and poses a significant quality and safety hazard. Utility Model Content

[0005] The purpose of this invention is to provide a tobacco logistics track control device that successfully solves the problem of stainless steel tobacco frames hitting the front door each time they enter the vacuum chamber, thereby eliminating quality and safety hazards as well as personal safety hazards, improving the efficiency and reliability of vacuuming, and enhancing the vacuum backtracking effect of tobacco leaves.

[0006] To address the aforementioned technical problems, this utility model provides a tobacco logistics track control device, comprising a chain-type logistics track, a roller-type logistics track, a chain-type logistics track inside a vacuum chamber connected in sequence, and a first position detector and a second position detector sequentially arranged along the length direction on the side of the roller-type logistics track for detecting the position of passing tobacco frames. The chain-type logistics track inside the vacuum chamber, the first position detector, and the second position detector are connected to a controller. The controller is used to control the chain-type logistics track inside the vacuum chamber to start operating after receiving a first tobacco frame arrival signal output by the first position detector, and to control the chain-type logistics track inside the vacuum chamber to decelerate after receiving a second tobacco frame arrival signal output by the second position detector, so that the speed at which the tobacco frame exits from the chain-type logistics track inside the vacuum chamber and reaches the front door of the vacuum chamber is less than a threshold speed.

[0007] The system also includes a frequency converter installed in the chain-type logistics track inside the vacuum chamber. The controller is connected to the frequency converter and is used to control the running speed of the chain-type logistics track inside the vacuum chamber by controlling the frequency of the frequency converter. The frequency converter is a pulse width modulation frequency converter or a pulse amplitude modulation frequency converter.

[0008] It also includes a slide rail installed in the chain-type logistics track inside the vacuum chamber, and the first position detector and the second position detector are installed in the slide rail.

[0009] It also includes a driver connected to the controller, the first position detector, and the second position detector, for adjusting the positions of the first position detector and the second position detector on the slide rail after receiving a control command from the controller.

[0010] The second position detector is located at the connection between the chain-type logistics track and the roller-type logistics track inside the vacuum chamber, or at a position at a predetermined distance from the chain-type logistics track inside the vacuum chamber.

[0011] The system also includes an acceleration calculation and control module connected to the controller. This module is used to calculate the average speed of the smoke frame as the arrival speed of the smoke frame on the chain-type logistics track inside the vacuum chamber based on the movement time of the smoke frame between the first position detector and the second position detector, as well as the distance between the first position detector and the second position detector. The module also calculates the acceleration data of the smoke frame on the chain-type logistics track inside the vacuum chamber based on the length of the chain-type logistics track inside the vacuum chamber and the threshold speed. The controller uses the acceleration data to control the running acceleration of the chain-type logistics track inside the vacuum chamber.

[0012] It also includes a wireless communication module connected to the controller, used to output the controller's operating data and receive the controller's control commands.

[0013] The controller is either a PLC controller or a microcontroller controller.

[0014] The system also includes a display connected to the controller, used to display the positions and spacing of the first position detector and the second position detector, the current control mode of the controller, and the running speed of the chain-type logistics track inside the vacuum chamber.

[0015] The first position detector and the second position detector are proximity switches or photoelectric switches.

[0016] The tobacco logistics track control device provided in this embodiment of the invention has the following advantages compared with the prior art:

[0017] The tobacco logistics track control device provided in this embodiment of the invention, by sequentially installing a first position detector and a second position detector on the side of the roller-type logistics track in a chain-type logistics track, a roller-type logistics track, and a chain-type logistics track inside a vacuum box, for detecting the position of the tobacco frame, allows the controller to start operating the chain-type logistics track inside the vacuum box after receiving a first tobacco frame arrival signal from the first position detector, and to decelerate the chain-type logistics track inside the vacuum box after receiving a second tobacco frame arrival signal from the second position detector. This ensures that the speed at which the tobacco frame exits the chain-type logistics track inside the vacuum box and reaches the front door of the vacuum box is less than a threshold speed, successfully solving the problem of the tobacco frame hitting the front door every time it enters the vacuum box, thus eliminating quality and safety hazards and personal safety risks, improving the efficiency and reliability of vacuuming, and enhancing the vacuum backtracking effect of the tobacco leaves. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the tobacco logistics track control device provided by this utility model;

[0020] Among them: 100-Chain-type logistics track, 200-Roller-type logistics track, 300-Chain-type logistics track inside the vacuum box, 400-Front door of the vacuum box, 500-Smoke frame, 201-First position detector, 202-Second position detector, 101-Diffuse reflection phototube. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 1 A schematic diagram of one embodiment of the tobacco logistics track control device provided by this utility model.

[0023] In one specific embodiment, the tobacco logistics track control device includes a chain-type logistics track 100, a roller-type logistics track 200, a chain-type logistics track 300 inside a vacuum chamber, and a first position detector 201 and a second position detector 202 sequentially arranged along the length direction on the side of the roller-type logistics track 200 for detecting the position of passing the tobacco frame 500. The chain-type logistics track 300 inside the vacuum chamber, the first position detector 201, and the second position detector 202 are connected to a controller. The controller is used to control the chain-type logistics track 300 inside the vacuum chamber to start operating after receiving a first tobacco frame 500 arrival signal output by the first position detector 201, and to control the chain-type logistics track 300 inside the vacuum chamber to decelerate after receiving a second tobacco frame 500 arrival signal output by the second position detector 202, so that the speed at which the tobacco frame 500 exits from the chain-type logistics track 300 inside the vacuum chamber and arrives at the front door 400 of the vacuum chamber is less than a threshold speed.

[0024] By sequentially installing a first position detector 201 and a second position detector 202 on the side of the roller-type logistics track 200 (which is connected in sequence to the chain-type logistics track 100, roller-type logistics track 200, and chain-type logistics track 300 inside the vacuum box) to detect the position of the tobacco frame 500, the controller starts the chain-type logistics track 300 inside the vacuum box after receiving the first tobacco frame 500 arrival signal output by the first position detector 201, and slows down the chain-type logistics track 300 inside the vacuum box after receiving the second tobacco frame 500 arrival signal output by the second position detector 202. This ensures that the speed at which the tobacco frame 500 exits from the chain-type logistics track 300 inside the vacuum box and reaches the front door 400 of the vacuum box is less than a threshold speed, successfully solving the problem of the tobacco frame 500 hitting the front door every time it enters the vacuum box. This resolves quality and safety hazards and personal safety hazards, improves the efficiency and reliability of vacuuming, and enhances the vacuum backtracking effect of the tobacco leaves.

[0025] To further improve the control efficiency of the chain-type logistics track 300 inside the vacuum box, reduce the number of start-stop cycles, and reduce damage to the motor, in one embodiment, the tobacco logistics track control device further includes a frequency converter installed in the chain-type logistics track 300 inside the vacuum box. The controller is connected to the frequency converter and is used to control the running speed of the chain-type logistics track 300 inside the vacuum box by controlling the frequency of the frequency converter. The frequency converter is a pulse width modulation frequency converter or a pulse amplitude modulation frequency converter.

[0026] By using a frequency converter in the chain-type logistics track 300 inside the vacuum chamber to control the speed of the chain-type logistics track 300, the speed control process eliminates the need for frequent start-stop operations. The output signal to the frequency converter can be directly controlled, eliminating the need for direct voltage or current output, thus reducing control complexity. Furthermore, controlling the output voltage or pulse frequency ratio is sufficient to control the speed of the chain-type logistics track 300, resulting in high control efficiency and precision. This allows for precise control of the track's speed and the operating speed of the smoke frame 500, further enhancing control efficiency.

[0027] This application does not limit the type of frequency converter, including but not limited to pulse width modulation frequency converters or pulse amplitude modulation frequency converters.

[0028] Since different cigarette frames 500 may have different weights, the time to reach the first position detector 201 and the second position detector 202 may be different, the length of the chain-type logistics track 300 inside different vacuum boxes may be different, and the speed requirements for reaching the vacuum box may be different, in one embodiment, the tobacco logistics track control device further includes a slide rail disposed on the chain-type logistics track 300 inside the vacuum box, and the first position detector 201 and the second position detector 202 are disposed on the slide rail.

[0029] By setting a slide rail, the first position detector 201 and the second position detector 202 are placed on the slide rail. By adjusting the positions of the first position detector 201 and the second position detector 202, the control in different scenarios can be improved, and the flexibility and reliability of the control can be enhanced.

[0030] This application does not limit the type of slide rail, the installation method, the installation method of the first position detector 201, the second position detector 202, or the position control method.

[0031] The positions of the first position detector 201 and the second position detector 202 can be manually controlled, or, in order to improve the automation level of the system, automatic control of mechanical components can be adopted.

[0032] In one embodiment, the tobacco logistics track control device further includes a driver connected to the controller, the first position detector 201, and the second position detector 202, for adjusting the positions of the first position detector 201 and the second position detector 202 on the slide rail after receiving a control command from the controller.

[0033] By using a driver to adjust the positions of the first position detector 201 and the second position detector 202 on the slide rail, their positions are automatically adjusted, thereby improving control efficiency.

[0034] This application does not limit the type of driver or the driving method. It can be screw control, or the first position detector 201 and the second position detector 202 can be set to drive the motor control, or other control methods can be used.

[0035] In this application, the positions of the first position detector 201 and the second position detector 202 are not limited. However, in order to improve the accuracy of control, in one embodiment, the second position detector 202 is set at the connection between the chain-type logistics track 300 and the roller-type logistics track 200 inside the vacuum box, or at a position at a predetermined distance from the chain-type logistics track 300 inside the vacuum box.

[0036] By setting the second position detector 202 at the connection between the chain-type logistics track 300 and the roller-type logistics track 200 inside the vacuum chamber, or at a position at a predetermined distance from the chain-type logistics track 300 inside the vacuum chamber, the speed of entering the chain-type logistics track 300 inside the vacuum chamber is ensured to be at a predetermined speed, thus simplifying the subsequent control complexity.

[0037] This application does not limit the installation location of the second position detector 202.

[0038] To further improve control efficiency and reduce damage caused by the slippage of the tobacco frame 500 after entering the chain-type logistics track 300 inside the vacuum chamber, in one embodiment, the tobacco logistics track control device further includes an acceleration calculation and control module connected to the controller. This module calculates the average speed of the tobacco frame 500 as its arrival speed at the chain-type logistics track 300 inside the vacuum chamber based on the movement time of the tobacco frame 500 between the first position detector 201 and the second position detector 202, and the distance between them. It also calculates the acceleration data of the tobacco frame 500 on the chain-type logistics track 300 inside the vacuum chamber based on the length of the chain-type logistics track 300 and the threshold speed. The controller uses this acceleration data to control the running acceleration of the chain-type logistics track inside the vacuum chamber.

[0039] The speed of the smoke frame 500 is calculated by the acceleration calculation control module, and the parameters of the chain-type logistics track 300 inside the vacuum box are used to ensure that the smoke frame 500 and the chain-type logistics track 300 inside the vacuum box move synchronously. At the same time, the control efficiency is simplified and the control difficulty is reduced.

[0040] This application does not limit the running acceleration of the chain-type logistics track 300 inside the vacuum box. It can be a constant value or an acceleration curve in which the acceleration gradually decreases in order to reduce running time.

[0041] It should be noted that the arrival speed of the smoke frame 500 to the chain-type logistics track 300 inside the vacuum box is the horizontal speed because the friction force on the smoke frame 500 on the roller-type logistics track is very small and can be ignored, so its average speed is taken as the output speed from the roller-type logistics track.

[0042] For example, in one embodiment, the length of the chain-type logistics track 300 inside the vacuum box is 5m, the threshold speed is 1m / s, and the arrival speed of the smoke frame 500 to the chain-type logistics track 300 inside the vacuum box is 3m / s. According to the acceleration calculation formula, the minimum acceleration value is (3... 2 -1 2 ) / (2*5)=0.8(m / s 2 (This only requires the controller acceleration to be no less than 0.8 m / s²) 2 That's all.

[0043] The acceleration data of the smoke frame 500 on the chain-type logistics track 300 inside the vacuum chamber can be calculated in the above manner. The calculation rules in the acceleration calculation and control module can be preset, or they can be controlled in real time by external commands, or other acceleration values ​​can be used, as long as they are not greater than the maximum acceleration value provided by the friction force provided by the chain-type logistics track 300 inside the vacuum chamber.

[0044] To further improve the control efficiency of the tobacco logistics track control device, in one embodiment, the tobacco logistics track control device further includes a wireless communication module connected to the controller, used to output the controller's operating data and receive the controller's control commands.

[0045] By setting up a wireless communication module to send the controller's operating data and receive the controller's control commands, remote control of the tobacco logistics track control device can be achieved, improving control efficiency and accuracy.

[0046] This application does not limit the type or installation location of the wireless communication module, including but not limited to 4G modules, 5G modules and Wi-Fi modules.

[0047] This application does not limit the type of controller, which may be a PLC controller, a microcontroller controller, or other types of controller.

[0048] To further improve control and management efficiency, in one embodiment, the tobacco logistics track control device further includes a display connected to the controller, used to display the position and spacing of the first position detector 201 and the second position detector 202, the current control mode of the controller, and the running speed of the chain-type logistics track 300 inside the vacuum box.

[0049] By setting a display to show the device's operating parameters, management efficiency is improved.

[0050] This application does not limit the type of display or the display method.

[0051] In this application, the position of the smoke frame 500 is detected by a position detector. There are no limitations on the type, quantity, or installation method of the detector. The first position detector 201 and the second position detector 202 are proximity switches, photoelectric switches, or other position triggering methods. Alternatively, a gravity sensor can be installed on the roller-type logistics track 200, or other methods can be used.

[0052] In one embodiment, the tobacco logistics track control device includes a chain-type logistics track 100, a roller-type logistics track 200, and a chain-type logistics track 300 inside a vacuum chamber, connected in sequence. The chain-type logistics track 100 receives stainless steel cigarette frames 500 to be processed from upstream and then conveys them to the roller-type logistics track 200. The roller-type logistics track 200 is equipped with multiple sets of load-bearing rollers. The stainless steel cigarette frames 500 are output through the roller-type logistics track 200 to the chain-type logistics track 300 inside the vacuum chamber, and then output to the front door 400 of the vacuum chamber for processing. A diffuse reflection phototube 101 is installed on the chain-type logistics track 100 for detection. A first photoelectric switch and a second photoelectric switch are installed on one side of the roller-type logistics track 200 along its length to detect the position of the cigarette frames 500 and control the chain-type logistics track 300 inside the vacuum chamber.

[0053] When the stainless steel smoke frame 500 passes the first photoelectric switch, the chain-type logistics track 300 inside the vacuum box starts to operate. When the stainless steel smoke frame 500 leaves the photoelectric switch, the chain-type logistics track 300 inside the vacuum box operates at the lowest speed under the control of the PLC program and the frequency converter.

[0054] In this way, the distance between the two stainless steel smoke frames 500 is equal to the distance between the two photoelectric switches plus the running speed of the chain-type logistics track 300 inside the vacuum box multiplied by the time the smoke frames 500 pass through, which can ensure that the distance between the smoke frames 500 is constant and that they will not hit the front door 400 of the vacuum box.

[0055] This device features a simple structure, low cost, flexibility, and wide applicability. The speed of the chain-type logistics track 300 inside the vacuum chamber can be adjusted according to actual conditions, solving the safety hazards caused by collisions and impacts with the smoke frame 500 and the need for regular maintenance of the vacuum chamber. Simultaneously, the use of a frequency converter to control start and stop reduces the number of motor starts and stops, significantly extending the motor's lifespan.

[0056] The above device is suitable for two chain-type logistics tracks 300 inside vacuum boxes, and is also suitable for various motor speed regulation scenarios required for logistics transportation.

[0057] In summary, the tobacco logistics track control device provided by this utility model, by sequentially installing a first position detector and a second position detector on the side of the roller-type logistics track in the sequentially connected chain-type logistics track, roller-type logistics track, and chain-type logistics track inside the vacuum box, controls the chain-type logistics track inside the vacuum box to start operating after receiving the first cigarette frame arrival signal output by the first position detector, and controls the chain-type logistics track inside the vacuum box to decelerate after receiving the second cigarette frame arrival signal output by the second position detector, so that the speed at which the cigarette frame exits from the chain-type logistics track inside the vacuum box and reaches the front door of the vacuum box is less than a threshold speed, successfully solves the problem of the cigarette frame hitting the front door every time it enters the vacuum box, solves the quality and safety hazards and personal safety hazards, improves the efficiency and reliability of vacuuming, and improves the vacuum backtracking effect of tobacco leaves.

[0058] The tobacco logistics track control device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A tobacco logistics track control device, characterized in that, The system includes a chain-type logistics track, a roller-type logistics track, and a chain-type logistics track inside a vacuum chamber, connected in sequence. A first position detector and a second position detector are sequentially arranged along the length of the roller-type logistics track on its side for detecting the position of the smoke frame. The chain-type logistics track inside the vacuum chamber, the first position detector, and the second position detector are connected to a controller. The controller is used to control the chain-type logistics track inside the vacuum chamber to start operating after receiving a first smoke frame arrival signal output from the first position detector, and to control the chain-type logistics track inside the vacuum chamber to decelerate after receiving a second smoke frame arrival signal output from the second position detector, so that the speed at which the smoke frame exits from the chain-type logistics track inside the vacuum chamber and reaches the front door of the vacuum chamber is less than a threshold speed.

2. The tobacco logistics track control device as described in claim 1, characterized in that, It also includes a frequency converter installed in the chain-type logistics track inside the vacuum chamber. The controller is connected to the frequency converter and is used to control the running speed of the chain-type logistics track inside the vacuum chamber by controlling the frequency of the frequency converter. The frequency converter is a pulse width modulation frequency converter or a pulse amplitude modulation frequency converter.

3. The tobacco logistics track control device as described in claim 2, characterized in that, It also includes a slide rail installed in the chain-type logistics track inside the vacuum chamber, and the first position detector and the second position detector are installed in the slide rail.

4. The tobacco logistics track control device as described in claim 3, characterized in that, It also includes a driver connected to the controller, the first position detector, and the second position detector, for adjusting the positions of the first position detector and the second position detector on the slide rail after receiving a control command from the controller.

5. The tobacco logistics track control device as described in claim 4, characterized in that, The second position detector is located at the connection between the chain-type logistics track and the roller-type logistics track inside the vacuum chamber, or at a position at a predetermined distance from the chain-type logistics track inside the vacuum chamber.

6. The tobacco logistics track control device as described in claim 5, characterized in that, It also includes an acceleration calculation and control module connected to the controller, used to calculate the average speed as the arrival speed of the smoke frame to the chain-type logistics track inside the vacuum chamber based on the movement time of the smoke frame between the first position detector and the second position detector and the distance between the first position detector and the second position detector, and to calculate the acceleration data of the smoke frame on the chain-type logistics track inside the vacuum chamber based on the length of the chain-type logistics track inside the vacuum chamber and the threshold speed. The controller uses the acceleration data to control the running acceleration of the chain-type logistics track inside the vacuum chamber.

7. The tobacco logistics track control device as described in any one of claims 1-6, characterized in that, It also includes a wireless communication module connected to the controller, used to output the controller's operating data and receive the controller's control commands.

8. The tobacco logistics track control device as described in claim 7, characterized in that, The controller is a PLC controller or a microcontroller controller.

9. The tobacco logistics track control device as described in claim 8, characterized in that, It also includes a display connected to the controller for displaying the position and spacing of the first position detector and the second position detector, as well as the current control mode of the controller and the running speed of the chain-type logistics track inside the vacuum chamber.

10. The tobacco logistics track control device as described in claim 9, characterized in that, The first position detector and the second position detector are proximity switches or photoelectric switches.

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