Motor control system for simulating a human smoking device

Abstract

The utility model discloses a kind of motor control systems of simulating human smoking device, including controller, power module X-axis motor, Y-axis motor and Z-axis motor;The power module is used to convert AC 220V power into DC 24V power, and power supply for controller and each motor;The controller is respectively electrically connected with X-axis motor, Y-axis motor and Z-axis motor, for controlling the movement track of three motors;Through multi-axis motor linkage programming and limit switch trigger mechanism, realize point smoke, smoke, change smoke whole process automation, without manual intervention can be accurately controlled smoke volume, compared with the error rate of manual operation in prior art is reduced, solve the problem of low efficiency, poor precision of manual test.X axis, Y axis, Z axis motor is accurately coordinated by controller programming, change smoke time is shortened, push-pull frequency error is reduced, can be flexibly adapted to smoke concentration demand of multiple scenes such as fire alarm test, medical research, test efficiency is improved by more than several times than existing device.

Description

Technical Field

[0001] This utility model belongs to the technical field of smoke testing equipment, specifically relating to a motor control system for a simulated human smoking device. Background Technology

[0002] In fields such as fire alarm systems and medical research, simulated human smoking tests are frequently required. Currently available simulated human smoking devices are mostly single-entry designs, storing smoke in a confined space, which fails to meet the diverse smoke concentration requirements of different scenarios. Furthermore, existing devices rely on manual operation for smoke control, resulting in low testing efficiency and significant human error. They cannot accurately achieve high-frequency testing requirements such as smoking three cigarettes per minute, and human testing poses health risks. In addition, the existing devices suffer from poor motor control linkage, loose component coordination, and low smoke utilization, making it difficult to meet the demands for automated and precise testing. Utility Model Content

[0003] The purpose of this invention is to provide a motor control system for a simulated human smoking device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a motor control system for a simulated human smoking device, comprising a controller, a power module, an X-axis motor, a Y-axis motor, and a Z-axis motor; The power module is used to convert AC220V power to DC24V power to power the controller and each motor. The controller is electrically connected to the X-axis motor, Y-axis motor and Z-axis motor respectively, and is used to control the motion trajectory of the three motors; The X-axis motor is used to control the rotation of the smoke-changing component, the Y-axis motor is used to control the push-pull action of the smoking device, and the Z-axis motor is used to control the connection between the smoke inlet and the cigarette butt.

[0005] Preferably, it also includes a heating rod limit switch, which is electrically connected to the controller and is used to trigger the heating rod to heat up, thereby improving the accuracy of the cigarette lighting action. It can also be synchronized with the motor movement trajectory to ensure that the high-frequency test requirement of 3 cigarettes can be completed within 1 minute, effectively solving the pain point that manual operation is difficult to meet the high-frequency smoke volume requirements.

[0006] Preferably, the Y-axis motor is equipped with an independent driver, which is electrically connected to the controller to provide the driving force required by the Y-axis motor. The independent driver can accurately control the motor speed and torque, reduce motor losses, and extend service life.

[0007] Preferably, the controller controls the movement trajectories of the X-axis motor, Y-axis motor, and Z-axis motor through programming, enabling the coordinated control of the rotation of the smoke-changing component, the push-pull mechanism, and the docking of the smoke inlet. This coordinated control not only improves testing efficiency but also avoids fluctuations in smoke concentration caused by manual operation, ensuring that the smoke concentration accurately meets the needs of different scenarios.

[0008] Preferably, the power supply module includes an AC220V to DC24V conversion circuit to provide a stable operating power supply for the controller, preventing deviations in the number of push-pull operations or errors in the smoke replacement angle due to voltage fluctuations, thereby ensuring the utilization rate of smoke volume.

[0009] Preferably, the cigarette changing component adopts the revolver-style reloading method. When a cigarette is finished, the X-axis motor drives the cigarette changing component to rotate and replenish the smoking position with the next cigarette. This avoids the positional deviation of manual cigarette changing and ensures that the lighting position of each cigarette is accurately aligned with the heating rod, thus solving the problems of low cigarette changing efficiency and large error in existing devices.

[0010] Preferably, the rotation angle of the smoke-changing component is controlled by the rotation amount of the X-axis motor, and the number of push-pull actions can be preset by the controller. The preset number of push-pull actions can meet the differentiated smoke volume requirements of different scenarios.

[0011] Preferably, the device also includes one-way valves located at the inlet and outlet of the pusher to increase the sealing performance of the device, thereby enhancing the sealing performance of the device and preventing smoke leakage during smoking, which could lead to a decrease in concentration.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: By using multi-axis motor linkage programming and limit switch triggering mechanism, the entire process of lighting, smoking, and changing cigarettes is automated, and the amount of smoke can be accurately controlled without human intervention. Compared with the existing technology, the error rate of manual operation is reduced, and the problems of low efficiency and poor accuracy of manual testing are solved.

[0013] The X, Y, and Z axis motors achieve precise coordination through controller programming, shortening smoke replacement time and reducing errors in the number of push-pull cycles. It can flexibly adapt to the smoke concentration requirements of various scenarios such as fire alarm testing and medical research, and the testing efficiency is several times higher than that of existing devices.

[0014] The one-way valve design further improves the utilization rate of smoke volume. Combined with a stable DC24V power supply, it ensures that the smoke concentration remains at the optimal level during long-term testing. This solves the problem of test result deviation caused by poor sealing and unstable power supply in existing devices, and provides reliable data support for accurate analysis of alarm causes. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the motor control structure of this utility model; Figure 2 This is a schematic diagram of the mechanical transmission structure of this utility model; Figure 3 This is a diagram showing the casing of this utility model after it has been disassembled. Figure 4 This is the front view of the push-pull device of this utility model; Figure 5 This is a diagram of the present invention: a simulated human smoking device with a shell.

[0016] In the diagram: 1. Controller; 2. X-axis motor; 3. Y-axis motor; 4. Z-axis motor; 5. Power module; 6. Smoke replacement component; 7. Push-pull device; 8. Connecting part; 9. Heating rod limit switch; 10. One-way valve; 11. Driver. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a motor control system for a simulated human smoking device, including a controller 1, a power module 5, an X-axis motor 2, a Y-axis motor 3 and a Z-axis motor 4; Power module 5 converts AC220V power to DC24V power to supply power to controller 1 and each motor. Power module 5 uses an S-100-24 AC / DC switching power supply with built-in EMI filtering circuitry and overvoltage protection. Its input voltage range is AC180-264V, and its output is a stable DC24V / 4.17A power supply. It connects to the power input terminal of controller 1 via a three-core power cable. Controller 1 uses a Siemens S7-1200 series PLC and communicates via PROFIBUS-DP bus with the JMDM-2M-2070 servo driver for X-axis motor 2, the independent driver 11 (model MOTEC-i580) for Y-axis motor 3, and the driver 11 for Z-axis motor 4, achieving multi-axis synchronous control.

[0019] Controller 1 is electrically connected to X-axis motor 2, Y-axis motor 3 and Z-axis motor 4 respectively, and is used to control the motion trajectory of the three motors; When the system starts, controller 1 first executes the initialization program, performing origin return operations on X-axis motor 2, Y-axis motor 3, and Z-axis motor 4. After the origin positioning is completed, the user sets the test parameters through the HMI (human-machine interface) (not shown in the figure), including: number of times a single cigarette is pushed and pulled (default 15 times); push and pull stroke (adjustable from 50 to 100 mm); cigarette replacement interval time (default 20 seconds); number of test cycles (default 3 times).

[0020] X-axis motor 2 is used to control the rotation of the smoke-changing component 6, Y-axis motor 3 is used to control the action of the push-pull device 7 of the smoking device, Z-axis motor 4 is used to control the docking of the smoke inlet and the cigarette head connection part 8, and the heating rod limit switch 9 is electrically connected to the controller 1 to trigger the heating rod to heat up.

[0021] The Y-axis motor 3 is equipped with an independent driver 11, which is electrically connected to the controller 1 and is used to provide the driving force required by the Y-axis motor 3.

[0022] The controller 1 controls the movement trajectories of the X-axis motor 2, Y-axis motor 3 and Z-axis motor 4 through programming, so as to achieve the linkage control of the rotation of the smoke exchange component 6, the push-pull device 7, and the docking of the smoke inlet connection part 8.

[0023] The push-pull device 7 includes a circular sleeve fixed on the push-pull device mounting bracket, bracket A, bracket B, and bracket C; a smoke inlet rod that slides into the circular sleeve and is fixedly connected to the push-pull bracket at its outer end; and a smoke mouth that is connected to the circular sleeve and located away from the smoke inlet rod. A one-way valve 10 is installed on the smoke mouth. A through hole for connecting the smoke mouth to another pipe is provided on one side of the base. The Y-axis motor 3 pushes the smoke inlet rod to perform a pulling action. The ignited smoke is pulled into the circular sleeve through the smoke inlet rod and then discharged from the smoke mouth, thus achieving smoking. The push-pull device mounting bracket, bracket A, bracket B, and bracket C are respectively fixed on the inner bottom wall panel of the base. The circular sleeve of the push-pull device 7 is fixed to each bracket. The smoke inlet rod is slidably inserted into the circular sleeve, and its outer end is fixed to the push-pull bracket. The smoke mouth is connected to the circular sleeve and equipped with a one-way valve 10. This structural design allows the ignited smoke to smoothly pass through the smoke inlet rod into the circular sleeve and then be discharged from the smoke mouth when the Y-axis motor 3 pushes the smoke inlet rod to pull it out. The one-way valve 10 prevents backflow of smoke, enhances sealing, improves the utilization rate of smoke volume, and makes the device more efficient in the process of smoking and smoke discharge. It also ensures the directionality of smoke flow, which is more in line with the physiological characteristics of human smoking.

[0024] The power module 5 includes an AC220V to DC24V conversion circuit to provide a stable operating power supply for the controller 1.

[0025] The cigarette changing component 6 uses a revolver-like reloading mechanism. When a cigarette is finished, the X-axis motor 2 drives the cigarette changing component 6 to rotate and replenish the smoking position with the next cigarette.

[0026] The cigarette replacement component 6 includes a motor bracket, a motor fixed on the motor bracket, a bearing bracket that rotates with the output shaft of the motor, and a cigarette loading rack fixedly connected to the output shaft of the motor A. The motor bracket and the bearing bracket 23 are fixedly installed on the inner bottom wall panel of the base 11 by bolts. The cigarette loading rack also includes a cigarette loading tray fixedly connected to the output shaft of the motor A and cigarette loading sleeves arranged in a ring at equal intervals on the cigarette loading tray and positioned to be inserted into the cigarette stick.

[0027] The rotation angle of the smoke-changing component 6 is controlled by the rotation amount of the X-axis motor 2, and the number of push-pull actions can be preset by the controller 1.

[0028] It also includes one-way valves 10 located at the inlet and outlet of the push-pull device 7 to increase the sealing of the device.

[0029] After the parameters are set, controller 1 sends a pulse signal to X-axis motor 2, driving the cigarette changing component 6 to rotate 60° clockwise (the cigarette changing component 6 has a six-slot structure), moving the first cigarette to be tested below the inlet connector 8. Z-axis motor 4 drives the inlet connector 8 to move downwards by 15mm, ensuring a tight fit between the silicone sealing sleeve and the cigarette mouthpiece. At this time, X-axis motor 2 continues to drive the hose to the position of the heating rod limit switch 9, triggering the micro switch to close. Controller 1 outputs a 24V signal to the SSR solid-state relay, connecting the 36V / 500W heating rod power supply, and heating begins.

[0030] When the temperature of the heating rod reaches the preset value (350℃, monitored by a K-type thermocouple), the controller 1 sends a motion command to the independent driver 11 of the Y-axis motor 3, driving the pusher 7 to reciprocate according to the set parameters: push stroke: 30mm; push speed: 50mm / s; return speed: 80mm / s; pause time: 1 second (simulating the interval of human smoking).

[0031] Each push-pull action is fed back by a pressure sensor (range 0-10N) mounted on the push-pull device 7, providing feedback on the actual pushing force (normal range 3-5N) to ensure simulation of the force of a real human smoking. After completing the preset number of push-pull actions, the controller 1 sequentially turns off the power to the heating rod, stops the Y-axis motor 3, and controls the Z-axis motor 4 to raise the smoke inlet connection 8. Subsequently, the X-axis motor 2 drives the cigarette replacement component 6 to rotate 60°, replenishing the test position with the next cigarette and starting a new test cycle.

[0032] Throughout the process, the one-way valve 10 is made of food-grade silicone. The opening pressure of the inlet one-way valve 10 is 0.02MPa, and the opening pressure of the outlet one-way valve 10 is 0.05MPa, ensuring that the smoke can only flow in one direction under the action of the push-pull device 7, effectively preventing smoke backflow. At the same time, the output voltage of the power module 5 is monitored in real time by an LM393 voltage comparator. When the voltage fluctuation exceeds ±5%, the controller 1 immediately triggers an alarm and stops all motors, ensuring the safe and stable operation of the system.

[0033] The system includes a simulated human smoking device comprising a housing, which consists of a base and a top cover. The top cover is placed on the outer side of the top of the base and then fixed together with the base by several Phillips head screws. A hinge plate and a panel are hinged on the top cover. The panel is located inside the housing and is electrically connected to the controller 1. A pull-out ashtray is provided on the side of the base. The ashtray is inserted into the cavity formed by the base and the top cover. The housing consists of a base and a top cover, secured with Phillips head screws (A). This structural design provides robust support and protection for the entire device. The top cover hinges to the hinged hinge plate and panel, making the operating interface easy to use and view, facilitating parameter setting and control by operators. A pull-out ashtray is located on the side of the base, inserted into the cavity formed by the base and top cover, for easy collection of ash generated during smoking, keeping the device clean. The pull-out design also facilitates ash removal, improving the device's practicality and ease of maintenance.

[0034] A heating rod bracket is fixed to the inner wall panel of the housing above the ash collection cylinder by a cross-head screw. A heating rod is installed and fixed on the heating rod bracket. The heating rod is located in front of the cigarette stick inserted at the cigarette lighting station. The cigarette stick is lit after being heated by the heating rod A. The ash collection cylinder is located below the cigarette stick and the heating rod A. Heating rod A is fixed to the inner wall panel of the housing via a heating rod bracket, located in front of the cigarette holder at the lighting station. This positioning ensures that the heating rod accurately heats and ignites the cigarette holder, guaranteeing reliable lighting. An ash collection tank is located below the cigarette holder and heating rod, promptly collecting ash that falls during lighting and smoking, preventing ash from scattering and affecting the normal operation of other internal components, and maintaining a clean internal environment.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor control system for a simulated human smoking device, characterized in that, It includes a controller (1), a power module (5), an X-axis motor (2), a Y-axis motor (3), and a Z-axis motor (4); The power module (5) is used to convert AC220V power to DC24V power to power the controller (1) and each motor. The controller (1) is electrically connected to the X-axis motor (2), Y-axis motor (3) and Z-axis motor (4) respectively, and is used to control the motion trajectory of the three motors; The X-axis motor (2) is used to control the rotation of the smoke-changing component (6), the Y-axis motor (3) is used to control the action of the push-pull device (7) of the smoking device, and the Z-axis motor (4) is used to control the connection between the smoke inlet and the cigarette head (8).

2. The motor control system of the simulated human smoking device according to claim 1, characterized in that: It also includes a heating rod limit switch (9), which is electrically connected to the controller (1) and is used to trigger the heating rod to heat up.

3. The motor control system of the simulated human smoking device according to claim 1, characterized in that: The Y-axis motor (3) is equipped with an independent driver (11), which is electrically connected to the controller (1) to provide the driving force required by the Y-axis motor (3).

4. The motor control system of the simulated human smoking device according to claim 1, characterized in that: The controller (1) controls the movement trajectories of the X-axis motor (2), Y-axis motor (3) and Z-axis motor (4) through programming, so as to achieve the linkage control of the rotation of the smoke exchange component (6), the push-pull device (7) and the docking of the smoke inlet connection part (8).

5. The motor control system of the simulated human smoking device according to claim 1, characterized in that: The power module (5) includes an AC220V to DC24V conversion circuit, which is used to provide a stable working power supply for the controller (1).

6. The motor control system of the simulated human smoking device according to claim 1, characterized in that: The cigarette changing component (6) adopts the revolver-style reloading method. When a cigarette is finished, the X-axis motor (2) drives the cigarette changing component (6) to rotate and replenish the smoking position with the next cigarette.

7. The motor control system of the simulated human smoking device according to claim 4, characterized in that: The rotation angle of the smoke-changing component (6) is controlled by the rotation amount of the X-axis motor (2), and the number of push-pull actions can be preset by the controller (1).

8. The motor control system of the simulated human smoking device according to claim 4, characterized in that: It also includes one-way valves (10) located at the inlet and outlet of the pusher (7) to increase the sealing of the device.

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