A cigarette butt length automatic positioning device of a cigarette smoking machine and a cigarette smoking machine containing the same

Abstract

The utility model discloses a kind of cigarette butt length automatic positioning device of smoking machine and containing its smoking machine, including through shaft linear motor, fixed panel, linear displacement sensor, suction termination detector and control system;Through shaft linear motor is installed on fixed panel, drive motor shaft is along horizontal motion;Linear displacement sensor is connected with through shaft linear motor, for real-time collection motor shaft displacement of through shaft linear motor;Suction termination detector is fixedly installed in the first end of motor shaft of through shaft linear motor;For monitoring cigarette butt combustion end face;Control system is according to the feedback data of linear displacement sensor respectively control motor shaft first end movement of through shaft linear motor to target cigarette butt length;And according to the monitoring data of suction termination detector triggers the suction termination of smoking machine.This utility model can accurately position cigarette butt length, it is easy to operate and equipment versatility is strong, can be applied to multiple specifications of cigarette, realize the unity and accuracy of cigarette detection.

Description

Technical Field

[0001] This utility model relates to the field of tobacco detection equipment technology, and in particular to an automatic cigarette butt length positioning device for a smoking machine and a smoking machine containing the same. Background Technology

[0002] In tobacco industry smoke analysis and related tests, smoking machines need to accurately determine the length of the cigarette butt as the condition for terminating smoking to ensure test consistency.

[0003] Currently, there are two main methods for positioning cigarette butts in smoking machines. One method involves manually marking a line at the designated cigarette butt length and controlling the movement manually based on the combustion process. The other method involves setting a cotton thread at a specified cigarette butt length, triggering a control mechanism to position the cigarette butt when it burns to that thread.

[0004] The aforementioned smoking machines have the following problems in positioning cigarette butt length: Regarding positioning accuracy: firstly, manual measurement has large errors; secondly, the accuracy of the mechanical positioning mechanism is limited. Regarding ease of operation: firstly, operation is cumbersome and inefficient; secondly, parameter adjustment is difficult. Regarding equipment versatility: it is difficult to adapt to various cigarette sizes.

[0005] Therefore, it is evident that the existing smoking machines still have inconveniences and shortcomings in locating cigarette butt length, and urgently need further improvement. How to create an automatic cigarette butt length positioning device and smoking machine that can accurately locate cigarette butt length, is easy to operate, and has strong equipment versatility has become a pressing goal for the industry. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an automatic cigarette butt length positioning device for a smoking machine and a smoking machine containing the device, which enables the accurate positioning of cigarette butt length, is easy to operate, and has strong equipment versatility. It can be applied to various specifications of cigarettes, and realize the uniformity and accuracy of cigarette detection, thereby overcoming the problems of low positioning accuracy, cumbersome operation, and poor versatility of traditional smoking machines.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model provides an automatic positioning device for the length of cigarette butt in a smoking machine, including a through-axis linear motor, a fixed panel, a linear displacement sensor, a suction termination detector, and a control system.

[0009] The through-shaft linear motor is mounted on a fixed panel and drives the motor shaft to move horizontally.

[0010] The linear displacement sensor is connected to the through-shaft linear motor and is used to collect the motor shaft displacement of the through-shaft linear motor in real time.

[0011] The suction termination detector is fixedly installed at the first end of the motor shaft of the through-shaft linear motor; and the suction termination detector and the cigarette to be tested are located on the same side of the fixed panel, for monitoring the burning end face of the cigarette butt.

[0012] The control system is connected to a linear displacement sensor, a suction termination detector, and a through-axis linear motor. Based on the feedback data from the linear displacement sensor, the first end of the motor shaft of the through-axis linear motor is controlled to move to the target cigarette butt length. Based on the monitoring data from the suction termination detector, the suction of the smoking machine is terminated.

[0013] As a further improvement of this utility model, the suction termination detector adopts an infrared temperature sensor.

[0014] Furthermore, the suction termination detector employs a photoelectric sensor.

[0015] Furthermore, it also includes a motion connecting plate, which is vertically installed at the second end of the motor shaft of the through-shaft linear motor and is linked with the motor shaft;

[0016] The sensor body of the linear displacement sensor is fixed on the fixed panel, and the measuring part of the linear displacement sensor is fixedly connected to the motion connecting plate.

[0017] Furthermore, it also includes a cigarette holder, which is fixedly mounted on a fixed panel and has a built-in suction airflow channel.

[0018] Furthermore, the cigarette holder and the motor body of the through-shaft linear motor are respectively fixed to both sides of the fixed panel.

[0019] Furthermore, the motor body of the through-shaft linear motor and the linear displacement sensor are both located on the same side of the fixed panel.

[0020] Furthermore, the control system incorporates a calibration curve showing the relationship between the motor shaft displacement and the cigarette butt length.

[0021] The control system is equipped with a control panel, which is used to receive the target cigarette butt length set by the user.

[0022] This utility model also provides a smoking machine, including a smoke collection and suction system, and the above-mentioned automatic cigarette butt length positioning device.

[0023] By adopting the above technical solution, this utility model has at least the following advantages:

[0024] (1) Improve the accuracy of cigarette butt length positioning

[0025] This invention employs a closed-loop drive system combining a through-axis linear motor and a linear displacement sensor, along with dual-sensor fusion technology for the smoke termination detector. This system controls the cigarette butt length positioning error to within the micrometer level (far superior to the error of traditional manual adjustment), significantly improving the consistency and reliability of tobacco testing data and meeting the industry's high-precision testing standards.

[0026] (2) It achieves fully automated operation, is easy to operate, reduces labor costs, and improves detection efficiency.

[0027] No manual measurement and adjustment of cigarette butt length parameters is required. The entire process of "length recognition - parameter conversion - drive adjustment - suction termination" is automatically completed by the control system, reducing manual intervention, reducing the labor intensity of operators, avoiding human error, and improving detection efficiency.

[0028] (3) Enhance the versatility of the equipment and adapt to the testing of cigarettes of various specifications.

[0029] This invention utilizes a calibration curve algorithm and parameterized settings to quickly adapt to cigarette products of different brands and lengths (such as regular cigarettes, slim cigarettes, and short cigarettes). Operators only need to input the target cigarette butt length on the interface, and the system automatically completes the adaptation adjustment without requiring the replacement of mechanical parts, significantly improving the equipment's flexibility.

[0030] (4) Optimize the testing process and ensure data traceability

[0031] The control system records key data such as motor shaft displacement curve, cigarette butt length change, and smoking termination trigger threshold in real time. It supports data export and analysis to form a complete test archive, meeting the tobacco industry's management requirements for traceability and auditability of the testing process.

[0032] (5) The structure is compact and reliable, reducing maintenance costs.

[0033] The integrated drive structure of the through-shaft linear motor reduces the number of easily damaged parts such as gears and belts in traditional transmission mechanisms, thus lowering the probability of mechanical failure. The modular design of the sensing components facilitates quick replacement and calibration, extends the equipment maintenance cycle, and reduces the overall cost of use.

[0034] In summary, this utility model, through the deep integration of mechanical structure and intelligent control, not only solves the problems of low positioning accuracy, cumbersome operation, and poor versatility of traditional smoking machines, but also provides the tobacco industry with an efficient, accurate, and reliable testing solution, promoting the upgrading and iteration of cigarette quality testing technology. Attached Figure Description

[0035] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the structure of an automatic cigarette butt length positioning device for a smoking machine according to one embodiment of the present invention;

[0037] In the diagram: 1-Through-axis linear motor; 11-Motor shaft; 12-Motor body; 2-Fixed panel; 3-Linear displacement sensor; 31-Sensor body; 32-Measuring unit; 4-Suction termination detector; 5-Motion connecting plate; 6-Cigarette holder; 61-Suction airflow channel; 100-Cigarette. Detailed Implementation

[0038] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] Existing cigarette butt length positioning devices for smoking machines lack flexibility, require manual adjustment, have low positioning accuracy, low efficiency, and poor adaptability. When dealing with the detection needs of various cigarette sizes, frequent manual adjustments are required. This utility model provides an automatic cigarette butt length positioning device for smoking machines that combines mechanical transmission, sensor positioning, and intelligent control, achieving uniformity and accuracy in cigarette detection.

[0040] like Figure 1 As shown, this embodiment provides an automatic cigarette butt length positioning device for a smoking machine, including a through-shaft linear motor 1, a fixed panel 2, a linear displacement sensor 3, a suction termination detector 4, and a control system (not shown in the figure).

[0041] The through-axis linear motor 1 is mounted on the fixed panel 2, which provides mechanical support; the through-axis linear motor 1 drives the motor shaft 11 to move horizontally.

[0042] Linear displacement sensor 3 is connected to through-axis linear motor 1, and is used to collect the displacement of motor shaft 11 of through-axis linear motor 1 in real time. The connection between linear displacement sensor 3 and through-axis linear motor 1 can be configured as needed. In this embodiment, a connection via motion connecting plate 5 is preferred. Motion connecting plate 5 serves as a support and linkage mechanism. Motion connecting plate 5 is vertically mounted on the second end of motor shaft 11 of through-axis linear motor 1. Figure 1The linear displacement sensor 3 has its sensor body 31 fixed on the fixed panel 2, and its measuring part 32 fixedly connected to the motion connecting plate 5. When the motor shaft 11 moves horizontally, it drives the motion connecting plate 5 to move, which in turn drives the measuring part 32 on the motion connecting plate 5 to move horizontally, thus enabling real-time acquisition of the displacement of the motor shaft 11 of the through-axis linear motor 1. The motor body 12 of the through-axis linear motor 1 and the linear displacement sensor 3 are both located on the same side of the fixed panel 2 (both on the left side), making its structure compact and convenient for layout.

[0043] The suction termination detector 4 is fixedly installed at the first end of the motor shaft 11 of the through-shaft linear motor. Figure 1 (Right side of the panel 2). The smoke termination detector 4 and the cigarette 100 to be tested are located on the same side (right side) of the fixed panel 2. The smoke termination detector 4 is used to monitor the burning end face of the cigarette butt. The smoke termination detector 4 adopts an infrared temperature sensor or a photoelectric sensor. Through the principle of infrared temperature or photoelectric sensing, it can identify the position of the burning end face of the cigarette butt, and the response time for triggering the termination signal can reach the millisecond level.

[0044] To secure the cigarette 100 to be tested, the automatic cigarette butt length positioning device of the smoking machine also includes a cigarette holder 6. The cigarette holder 6 is fixedly mounted on the fixed panel 2. For a compact structure and convenient layout, the cigarette holder 6 and the motor body 12 of the through-shaft linear motor 1 are respectively fixed on both sides of the fixed panel 2. The cigarette holder 6 has a built-in suction airflow channel 61. The smoke collection and suction system of the smoking machine is connected to the suction airflow channel 61.

[0045] The control system is connected to the linear displacement sensor 3, the suction termination detector 4, and the through-axis linear motor 1 respectively; based on the feedback data of the linear displacement sensor 3, the first end of the motor shaft 11 of the through-axis linear motor 1 is controlled to move to the target cigarette butt length; and based on the monitoring data of the suction termination detector 4, the suction termination of the smoking machine is triggered.

[0046] The aforementioned control system incorporates a calibration curve relating motor shaft displacement to cigarette butt length. This calibration curve establishes a correlation between motor shaft displacement and cigarette butt length, and combined with dual-sensor data, automatically triggers suction termination, achieving precise cigarette butt length positioning. The control system includes a control panel for receiving the user-defined target cigarette butt length.

[0047] The core logic of the automatic cigarette butt length positioning of the above-mentioned smoking machine is:

[0048] 1. Mechanical transmission and displacement control

[0049] A through-axis linear motor 1 serves as the core drive source, with the motor shaft 11 moving horizontally and linked to a linear displacement sensor 3 via a motion connecting plate 5. The linear displacement sensor 3 collects real-time displacement data of the motor shaft 11 (corresponding to positional changes along the length of the cigarette butt), with an accuracy down to the micrometer level, providing physical displacement feedback for cigarette butt length positioning.

[0050] Cigarette 100 is fixed by cigarette holder 6, and the inhalation airflow enters in the direction shown in the figure to simulate the process of artificial smoking.

[0051] 2. Sensor detection and length recognition

[0052] Linear displacement sensor 3: Real-time monitoring of the displacement between motor shaft 11 and motion connecting plate 5, combined with the preset "correspondence between cigarette butt length and displacement" (a mathematical model of motor shaft displacement value and remaining cigarette butt length established through calibration experiments), calculates the current cigarette butt length.

[0053] Smoking termination detector 4: Detects and identifies the position of the burning end of the cigarette butt using an infrared temperature / photoelectric sensor. When the detector detects that the cigarette burning cone has reached the preset cigarette butt length setting, it triggers a signal to close the smoking channel.

[0054] 3. Intelligent control process

[0055] Calibration and Preset: By testing with standard cigarettes, the corresponding parameter curves for "motor shaft displacement and cigarette butt length" are calibrated and stored in the control system. Users can input the target cigarette butt length on the operation interface.

[0056] The control method for the smoking machine containing the automatic cigarette butt length positioning device includes:

[0057] (1) Drive and displacement monitoring: The motor shaft 11 of the through-axis linear motor 1 moves in the horizontal direction, and the linear displacement sensor 3 feeds back the displacement of the motor shaft 11 to the control system in real time. The control system converts the displacement of the motor shaft 11 into the current cigarette butt length.

[0058] (2) Combustion termination trigger: The suction termination detector 4 continuously monitors the position of the cigarette butt end. When the cigarette 100 combustion cone reaches the target cigarette butt length, the control system triggers the suction termination.

[0059] As can be seen from the above, this utility model drives the motor shaft 11 to move horizontally through the through-shaft linear motor 1, and moves the connecting plate 5 in conjunction with it; the linear displacement sensor 3 collects the displacement in real time, and the suction termination detector 4 monitors the burning end face of the cigarette butt. Through the coordination of mechanical transmission and sensor feedback, the cigarette butt length is automatically positioned, and the cigarette butt length is positioned together.

[0060] The above settings enable it to achieve the following:

[0061] 1. Drive-sensor closed loop: The through-shaft linear motor 1 drives the motion connecting plate 5, and the linear displacement sensor 3 synchronously collects the displacement, forming a "drive-feedback" closed loop to ensure displacement control accuracy, which can reach the micron level.

[0062] 2. Multi-sensor fusion: The linear displacement sensor (physical displacement feedback) and the suction termination detector (combustion end face monitoring) work together to ensure the positioning basis through mechanical displacement and correct errors through combustion end face detection, so as to achieve precise control of cigarette butt length.

[0063] The above-mentioned smoking machine with an automatic cigarette butt length positioning device is used as follows:

[0064] Step 1: Equipment Calibration and Parameter Preset

[0065] 1. Using standard cigarettes (with known cigarette butt length parameters), run a through-axis linear motor, record the "motor shaft displacement value and remaining cigarette butt length" data, fit the calibration curve, and store it in the control system.

[0066] 2. Enter the target cigarette butt length or cigarette specification in the operation interface, and the system will automatically convert it into the target displacement value of the motor shaft and the suction termination trigger threshold.

[0067] Step 2: Cigarette holding and smoking preparation

[0068] 1. Insert the cigarette into the cigarette holder, ensuring it is secure and reliable; check that the suction airflow channel, the through-shaft linear motor, and the power supply and signal transmission of the sensing components are normal.

[0069] Step 3: Automatic positioning and suction process

[0070] 1. Drive and displacement monitoring: Start the through-shaft linear motor, the motor shaft drives the motion connecting plate to move horizontally, the linear displacement sensor feeds back displacement data in real time, and the control system calculates the current cigarette butt length according to the calibration curve.

[0071] 2. Combustion and Termination Trigger: The suction airflow is started, and the cigarette is burned; the suction termination detector continuously monitors the position of the cigarette butt end. When the cigarette combustion cone is detected to have reached the target value of the cigarette butt length, the control system triggers the command to close the suction channel, and the suction is terminated.

[0072] Step 4: Data recording and replacement with other cigarette specifications

[0073] 1. The control system automatically records data such as the actual length of the cigarette butt, the motor shaft displacement curve, and the inhalation time during this test, and supports export and analysis.

[0074] 2. After changing to other cigarette specifications, the motor shaft calculates the new target cigarette butt length based on the current cigarette butt length value and automatically adjusts to the new cigarette butt length position, ready for the next test.

[0075] In summary, this utility model, through the deep integration of mechanical structure, sensor structure and intelligent control, not only solves the problems of low positioning accuracy, cumbersome operation and poor versatility of traditional smoking machines, but also provides the tobacco industry with an efficient, accurate and reliable detection solution, promoting the upgrading and iteration of cigarette quality detection technology.

[0076] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. An automatic cigarette butt length positioning device for a smoking machine, characterized in that, Includes a through-axis linear motor, a fixed panel, a linear displacement sensor, a suction termination detector, and a control system; The through-shaft linear motor is mounted on a fixed panel and drives the motor shaft to move horizontally. The linear displacement sensor is connected to the through-shaft linear motor and is used to collect the motor shaft displacement of the through-shaft linear motor in real time. The suction termination detector is fixedly installed at the first end of the motor shaft of the through-shaft linear motor; and the suction termination detector and the cigarette to be tested are located on the same side of the fixed panel, for monitoring the burning end face of the cigarette butt. The control system is connected to a linear displacement sensor, a suction termination detector, and a through-axis linear motor. Based on the feedback data from the linear displacement sensor, the first end of the motor shaft of the through-axis linear motor is controlled to move to the target cigarette butt length. Based on the monitoring data from the suction termination detector, the suction of the smoking machine is terminated.

2. The automatic cigarette butt length positioning device for a smoking machine according to claim 1, characterized in that, The suction termination detector uses an infrared temperature sensor.

3. The automatic cigarette butt length positioning device for a smoking machine according to claim 1, characterized in that, The suction termination detector uses a photoelectric sensor.

4. The automatic cigarette butt length positioning device for a smoking machine according to claim 1, characterized in that, It also includes a motion connecting plate, which is vertically installed at the second end of the motor shaft of the through-shaft linear motor and is linked with the motor shaft; The sensor body of the linear displacement sensor is fixed on the fixed panel, and the measuring part of the linear displacement sensor is fixedly connected to the motion connecting plate.

5. The automatic cigarette butt length positioning device for a smoking machine according to claim 1, characterized in that, It also includes a cigarette holder, which is fixedly mounted on a fixed panel and has a built-in suction airflow channel.

6. The automatic cigarette butt length positioning device for a smoking machine according to claim 5, characterized in that, The cigarette holder and the motor body of the through-shaft linear motor are respectively fixed on both sides of the fixed panel.

7. The automatic cigarette butt length positioning device for a smoking machine according to claim 6, characterized in that, The motor body of the through-shaft linear motor and the linear displacement sensor are both located on the same side of the fixed panel.

8. An automatic cigarette butt length positioning device for a smoking machine according to any one of claims 1-7, characterized in that, The control system includes a calibration curve showing the relationship between the motor shaft displacement and the cigarette butt length. The control system is equipped with a control panel, which is used to receive the target cigarette butt length set by the user.

9. A smoking machine, comprising a smoke collection and extraction system, characterized in that, It also includes an automatic cigarette butt length positioning device for a smoking machine as described in any one of claims 1-8.

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