Cigarette making machine stem rejecting quantity detection device

Abstract

The utility model belongs to the technical field of cigarette production, and particularly relates to a cigarette making machine sliver rejecting quantity detection device which comprises a sampling and weighing mechanism which comprises a support, a weighing sensor installed on the support and a tray connected to the bearing end of the weighing sensor. The tray is used for receiving the materials from the third-stage winnowing device and measuring the weight of the materials; the image acquisition assembly is arranged on the non-feeding side of the tray, and the image acquisition assembly is used for acquiring images of materials on the tray after the tray completes material receiving and rotates and resets; and the controller is used for receiving the weight signal of the weighing sensor and the image data acquired by the image acquisition assembly, and calculating the sliver rejecting amount based on the image and weight information. The device integrates weighing, image acquisition and intelligent processing, can obtain the weight of rejected materials and the distribution of slivers on line in real time, integrates dual data to calculate the rejecting amount, feeds back winnowing parameters, and improves the detection automation and quality control level.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette production technology, specifically relating to a device for detecting the amount of cigarette stems and twigs removed from a cigarette machine. Background Technology

[0002] The three-stage air separation mechanism of the cigarette rolling machine is the core device for tobacco purification. It is responsible for separating impurities such as stems and wet clumps of tobacco from the tobacco. The three-stage air separation is mainly as follows: the first stage air separation is used to initially remove large stems; the second stage air separation controls the airflow and air pressure entering the box by adjusting the opening degree of the air inlet damper set on the side wall of the second stage air separation mechanism, so as to achieve further separation of small stems; the third stage air separation relies on the valve or negative pressure adjustment mechanism at the end of the air pipeline to control the final amount of rejection, so as to ensure the purity of the tobacco.

[0003] Although existing three-stage air separation systems can significantly improve the purification effect of tobacco shreds, the evaluation methods for their rejection performance still have obvious shortcomings. Currently, the industry generally uses manual timed sampling, weighing, and air separation analysis to determine the amount of stems and twigs to be rejected. This method has problems such as long detection cycle, feedback delay, limited sampling frequency, insufficient coverage, and the inability to provide real-time feedback to the equipment, making it difficult to use for online adjustment of process parameters.

[0004] This application is made in order to solve at least one of the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems of existing three-stage air-separation stem removal mechanisms, such as heavy reliance on manual inspection, low inspection efficiency, poor real-time performance, and difficulty in forming a closed-loop feedback system. This invention provides a device for detecting the amount of stems removed from cigarette production machines. By integrating a sampling and weighing mechanism, an image acquisition component, and an intelligent controller, this device can achieve online, real-time detection and evaluation of the amount of stems removed from the material discharged from the three-stage air-separation device. Through a combination of image recognition and weight analysis, the device can accurately identify the distribution and actual weight of stems within the tray, calculate the removal amount index, and output feedback data. This provides a basis for the dynamic optimization of air-separation process parameters, effectively improving the quality control capabilities and automation level in cigarette production.

[0006] The present invention adopts the following technical solution:

[0007] This utility model provides a device for detecting the amount of cigarette stems removed in a cigarette machine, which is installed on one side of the discharge port of an existing three-stage air separation device 3, and includes:

[0008] The sampling and weighing mechanism 1 includes a support 11, a weighing sensor 12 mounted on the support 11, and a tray 13 connected to the bearing end of the weighing sensor 12. The tray 13 is used to receive materials from the three-stage air separation device and measure their weight.

[0009] Image acquisition component 2 is located on the non-feeding side of tray 13. The image acquisition component 2 is used to acquire images of the material on the tray after the tray has finished receiving the material and rotated to reset.

[0010] The controller is electrically connected to the weighing sensor 12 and the image acquisition component 2. It is used to receive the weight signal from the weighing sensor 12 and the image data acquired by the image acquisition component 2, and to calculate the amount of residue to be removed based on the image and weight information.

[0011] Preferably, the sampling and weighing mechanism 1 further includes a rotary drive unit 14, a connecting arm 15, and a drive device 16;

[0012] The rotary drive unit 14 is fixedly installed on the bracket 11, and its vertically arranged output shaft is fixedly connected to one end of the connecting arm 15, which is used to drive the connecting arm 15 to rotate around the vertical axis, thereby driving the tray 13 to switch between the receiving position and the image acquisition position.

[0013] The connecting arm 15 extends horizontally, and its other end is fixedly connected to the housing of the drive device 16;

[0014] The output shaft axis of the drive device 16 is parallel to the extension direction of the connecting arm 15 and is connected to the mounting section of the weighing sensor 12, for driving the tray 13 to flip or reset in the vertical plane.

[0015] The load-bearing end of the weighing sensor 12 is connected to the tray 13.

[0016] Preferably, the image acquisition component 2 includes:

[0017] An industrial camera 21 is fixedly mounted on the side of the tray 13, avoiding the side of the tray used to receive materials from the three-stage air separation device;

[0018] The lighting unit 22 is arranged on the side of the tray 13 in conjunction with the industrial camera 21;

[0019] The industrial camera 21 and the lighting unit 22 are used to capture images of the material on the tray 13 after the material is received on the tray 13 and reset to the acquisition position by the rotary drive assembly.

[0020] Preferably, the tray 13 is provided with a retaining edge 131 around its perimeter, which extends upward along the perimeter of the tray to prevent material from spilling laterally during the process of rotating the tray to receive materials, resetting, weighing, or acquiring images.

[0021] Preferably, the sidewall of the retaining edge 131 is provided with an inclined through hole group 132 distributed in a ring array. The through hole group is arranged in a ring around the perimeter of the tray 13, and the through holes 132 are arranged radially along the tray 13. The axis of each through hole starts from the inner surface of the tray 13 and extends outward at an inclination.

[0022] Preferably, the through hole 132 has a diameter of 2-5 mm and is covered with a leak-proof mesh on its inner or outer side to prevent tobacco from spilling out.

[0023] Preferably, it also includes N air nozzles 17, N≥3, which are evenly distributed around the tray 13, and the air jet direction of each air nozzle 17 is parallel to the axis of at least one through hole 132 in the area it covers.

[0024] The controller is configured to divide the tray 13 into N equal cleaning zones around its circumference, and to open and close each air nozzle 17 in a preset order to remove smoke and dust in different zones.

[0025] Preferably, the controller includes at least an image recognition module and a data processing module. The image recognition module is used to identify the distribution of stems in the image, and the data processing module is used to combine the recognition results with the weighing data to calculate the rejection index.

[0026] The cigarette machine stem removal quantity detection device of this utility model completes online monitoring and analysis of the removal effect of the three-stage air separation device according to the following steps during operation:

[0027] Step (1): The tray 13 is driven to rotate to the receiving position below the discharge port of the three-stage air classifier 3 by the action of the rotary drive unit 14. At this time, the tray 13 is in a horizontal state, and the side guard 131 is used to prevent material from overflowing and to receive the rejected material discharged from the air classifier system.

[0028] Step (2): Subsequently, driven by the rotary drive unit 14, the tray 13 rotates around the vertical axis to the image acquisition position. With the assistance of the lighting unit 22, the industrial camera 21 acquires images of the material in the tray 13. The image data is synchronously transmitted to the controller. Simultaneously, the weighing sensor 12 outputs the corresponding weight signal to the controller to obtain the quality data of the batch of rejected materials. This process does not require manual intervention and has good repeatability and stability.

[0029] Step (3): The image recognition module in the controller identifies the distribution and shape of the stems in the image. Combined with the weighing data collected synchronously, the data processing module calculates the stem removal index. This index can be used to evaluate the wind separation efficiency and then feed back to optimize the wind separation parameters.

[0030] Step (4): The tray 13 is flipped by the action of the drive device 16, and after the material in the tray 13 is poured out, it is reset to a horizontal position. The controller opens and closes multiple air nozzles 17 set on the side wall of the tray 13 in sequence according to the set program. The airflow is sprayed out and impacts in a directional manner parallel to the axis of the through hole, and removes the residual smoke and dust and fine materials on the surface of the tray in different areas to ensure the accuracy of the next round of testing.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. By integrating a sampling and weighing mechanism with an image acquisition component, this invention enables on-site weighing and photographing of rejected materials at the outlet of the three-stage air separator, eliminating the need for manual sampling, significantly shortening the detection cycle, and achieving online, real-time monitoring of the amount of rejected material. It also avoids repetitive manual sampling and laboratory analysis, reducing manpower and downtime, while enabling continuous 24 / 7 monitoring, significantly improving production line efficiency and detection frequency.

[0033] 2. By combining the weight signal with the image recognition results, the rejection quantity index is calculated through the data processing module. This not only accurately obtains the quality of the rejected materials, but also analyzes the distribution and shape of the stems and twigs in the tray. The dual discrimination reduces the error of a single measurement and improves the accuracy of the evaluation.

[0034] 3. Based on the real-time rejection rate, the controller can feed back relevant parameters (such as air pressure, valve opening, etc.) to the air separation equipment, thereby realizing dynamic adjustment of the three-stage air separation process, forming a closed loop from monitoring to control, and greatly improving production stability and tobacco purity.

[0035] 4. The sampling and weighing mechanism, image acquisition component, and air nozzle cleaning unit are highly modular, easy to install, and easy to integrate with different models of air separators; the through-hole with leak-proof mesh and zoned air nozzle cleaning design helps maintain tray cleanliness and ensures long-term stable operation.

[0036] 5. Achieving precise control and traceable recording of stem removal results ensures consistent tobacco quality in cigarettes, which helps improve the smoking experience and brand reputation of end products, thereby enhancing the company's competitive advantage in the market. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the device of the present invention in a specific embodiment, wherein the device is located at the material receiving position below the discharge port of the three-stage air separation device;

[0038] Figure 2 This is a schematic diagram of the structure of the device of the present invention in a specific embodiment, wherein the device is located at the image acquisition position;

[0039] Figure 3This is a schematic diagram of the sampling and weighing mechanism in a specific implementation.

[0040] Reference numerals: 1. Sampling and weighing mechanism; 11. Support; 12. Weighing sensor; 13. Tray; 131. Side guard; 14. Rotary drive unit; 15. Connecting arm; 16. Drive device; 17. Air nozzle; 2. Image acquisition component; 21. Industrial camera; 22. Lighting unit; 3. Three-stage air separation device. Detailed Implementation

[0041] The present application will now be described in further detail with reference to the embodiments.

[0042] Example 1

[0043] This embodiment provides a device for detecting the amount of cigarette stems and twigs removed from a cigarette machine, such as... Figure 1 As shown, the part installed on one side of the discharge port of the three-stage air separator 3 includes:

[0044] The sampling and weighing mechanism 1 includes a support 11, a weighing sensor 12 mounted on the support 11, and a tray 13 connected to the bearing end of the weighing sensor 12. The tray 13 is used to receive materials from the three-stage air separation device and measure their weight. Specifically, the weighing sensor 12 is a cantilever corrugated pipe weighing sensor.

[0045] Image acquisition component 2 is located on the non-feeding side of tray 13. The image acquisition component 2 is used to acquire images of the material on the tray after the tray has finished receiving the material and rotated to reset.

[0046] The controller is electrically connected to the weighing sensor 12 and the image acquisition component 2. It is used to receive the weight signal from the weighing sensor 12 and the image data acquired by the image acquisition component 2, and to calculate the amount of residue to be removed based on the image and weight information.

[0047] The sampling and weighing mechanism 1 further includes a rotary drive unit 14, a connecting arm 15, and a drive device 16; preferably, the drive device 16 is a stepper motor with an encoder.

[0048] The rotary drive unit 14 is fixedly installed on the bracket 11. Its vertically arranged output shaft is fixedly connected to one end of the connecting arm 15, which is used to drive the connecting arm 15 to rotate around the vertical axis, thereby driving the tray 13 to switch between the receiving position and the image acquisition position. Preferably, the rotary drive unit 14 is a rotary cylinder.

[0049] The connecting arm 15 extends horizontally, and its other end is fixedly connected to the housing of the drive device 16;

[0050] The output shaft axis of the drive device 16 is parallel to the extension direction of the connecting arm 15 and is connected to the mounting section of the weighing sensor 12, for driving the tray 13 to flip or reset in the vertical plane.

[0051] The load-bearing end of the weighing sensor 12 is connected to the tray 13.

[0052] The image acquisition component 2 includes:

[0053] An industrial camera 21 is fixedly mounted on the side of the tray 13, avoiding the side of the tray used to receive materials from the three-stage air separation device;

[0054] The lighting unit 22 is arranged on the side of the tray 13 in conjunction with the industrial camera 21;

[0055] The industrial camera 21 and the lighting unit 22 are used to capture images of the material on the tray 13 after the material is received on the tray 13 and reset to the acquisition position by the rotary drive assembly.

[0056] The tray 13 is provided with a retaining edge 131 around its perimeter. The retaining edge 131 extends upward along the perimeter of the tray and is used to prevent material from spilling laterally during the process of rotating the tray to receive materials, resetting, weighing, or acquiring images.

[0057] The sidewall of the retaining edge 131 is provided with an inclined through hole group 132 arranged in a ring array. The through hole group 132 is arranged in a ring around the periphery of the tray 13, and the through holes 132 are arranged radially along the tray 13. The axis of each through hole starts from the inner surface of the tray 13 and extends outward at an inclination.

[0058] The through hole 132 has a diameter of 5 mm and is covered with a leak-proof mesh with a diameter of less than 1 mm on its outside to prevent tobacco from spilling out.

[0059] It also includes four air nozzles 17, which are evenly distributed around the tray 13, and the air jet direction of each air nozzle 17 is parallel to the axis of at least one through hole 132 in the area it covers.

[0060] The controller is configured to divide the tray 13 into four equal cleaning zones around its circumference and to open and close each air nozzle 17 in a preset order to remove smoke and dust in different zones.

[0061] The controller includes at least an image recognition module and a data processing module. The image recognition module is used to identify the distribution of stems in the image, and the data processing module is used to combine the recognition results with the weighing data to calculate the rejection index.

[0062] In this embodiment, the cigarette machine stem removal detection device performs online monitoring and analysis of the removal effect of the three-stage air separation device according to the following steps during operation:

[0063] Step (1): The tray 13 is driven to rotate to the receiving position below the discharge port of the three-stage air classifier 3 by the action of the rotary drive unit 14. At this time, the tray 13 is in a horizontal state, and the side guard 131 is used to prevent material from overflowing and to receive the rejected material discharged from the air classifier system.

[0064] As a preferred embodiment of this invention, when matching an existing cigarette machine, such as the ZJ17 cigarette machine, the controller controls the rotary drive unit 14 to send the tray 13 directly below the material inlet every 30 minutes, with a timing of 1 minute.

[0065] Step (2): Subsequently, driven by the rotary drive unit 14, the tray 13 rotates around the vertical axis to the image acquisition position. With the assistance of the lighting unit 22, the industrial camera 21 acquires images of the material in the tray 13. The image data is synchronously transmitted to the controller. Simultaneously, the weighing sensor 12 outputs the corresponding weight signal to the controller to obtain the quality data of the batch of rejected materials. This process does not require manual intervention and has good repeatability and stability.

[0066] Step (3): The image recognition module in the controller identifies the distribution and shape of the stems in the image. Combined with the weighing data collected synchronously, the data processing module calculates the stem removal index. This index can be used to evaluate the wind separation efficiency and then feed back to optimize the wind separation parameters.

[0067] Step (4): The tray 13 is flipped by the action of the drive device 16, and after the material in the tray 13 is poured out, it is reset to a horizontal position. The controller opens and closes multiple air nozzles 17 set on the side wall of the tray 13 in sequence according to the set program. The airflow is sprayed out and impacts in a directional manner parallel to the axis of the through hole, and removes the residual smoke and dust and fine materials on the surface of the tray in different areas to ensure the accuracy of the next round of testing.

[0068] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this application; the dimensions described in the drawings and embodiments are not related to the specific physical object and are not used to limit the protection scope of this application. The physical dimensions can be selected and changed according to actual needs.

Claims

1. A device for detecting the amount of cigarette stems removed during a cigarette making machine, installed on one side of the discharge port of a three-stage air separation device (3), characterized in that, include: The sampling and weighing mechanism (1) includes a bracket (11), a weighing sensor (12) mounted on the bracket (11), and a tray (13) connected to the bearing end of the weighing sensor (12). The tray (13) is used to receive materials from the three-stage air separation device and measure their weight. An image acquisition component (2) is provided on the non-feeding side of the tray (13). The image acquisition component (2) is used to acquire images of the material on the tray after the tray has finished receiving the material and rotated to reset. The controller is electrically connected to the weight sensor (12) and the image acquisition component (2).

2. The cigarette machine stem removal quantity detection device according to claim 1, characterized in that, The sampling and weighing mechanism (1) further includes a rotary drive unit (14), a connecting arm (15), and a drive device (16); The rotary drive unit (14) is fixedly installed on the bracket (11), and its vertically arranged output shaft is fixedly connected to one end of the connecting arm (15) for driving the connecting arm (15) to rotate around the vertical axis, thereby driving the tray (13) to switch between the receiving position and the image acquisition position. The connecting arm (15) extends horizontally, and its other end is fixedly connected to the housing of the drive device (16); the output shaft axis of the drive device (16) is parallel to the extension direction of the connecting arm (15) and is connected to the mounting section of the weighing sensor (12) for driving the tray (13) to flip or reset in the vertical plane. The load-bearing end of the weighing sensor (12) is connected to the tray (13).

3. The cigarette machine stem removal quantity detection device according to claim 1, characterized in that, The image acquisition component (2) includes: An industrial camera (21) is fixedly mounted on the side of the tray (13), away from the side of the tray used to receive materials from the three-stage air separation device; The lighting unit (22) is arranged in conjunction with the industrial camera (21) on the side of the tray (13); the industrial camera (21) and the lighting unit (22) are used to collect images of the material on the tray (13) after the material is received on the tray (13) and reset to the acquisition position by the rotary drive assembly.

4. The cigarette machine stem removal quantity detection device according to claim 1, characterized in that, The tray (13) is provided with a retaining edge (131) around its perimeter. The retaining edge (131) extends upward along the perimeter of the tray to prevent material from spilling laterally during the process of rotating the tray to receive material, resetting, weighing, or acquiring images.

5. The cigarette machine stem removal quantity detection device according to claim 4, characterized in that, The sidewall of the retaining edge (131) is provided with an inclined through hole group (132) arranged in a ring array. The through hole group is arranged in a ring along the periphery of the tray (13). The through holes (132) are arranged radially along the tray (13). The axis of each through hole starts from the inner surface of the tray (13) and extends outward at an inclination.

6. The cigarette machine stem removal quantity detection device according to claim 5, characterized in that, The through-hole group (132) has a hole diameter of 2-5mm and is covered with a leak-proof mesh on its inner or outer side to prevent tobacco from spilling out.

7. The cigarette machine stem removal quantity detection device according to claim 5, characterized in that, It also includes N air nozzles (17), N≥3, which are evenly distributed around the tray (13). The air jet direction of each air nozzle (17) is parallel to the axis of at least one through hole (132) in the area it covers. The controller is configured to divide the tray (13) into N cleaning zones in a circumferential direction and open and close each air nozzle (17) in a preset order to remove smoke and dust in different zones.

8. The cigarette machine stem removal quantity detection device according to claim 1, characterized in that, The controller includes at least an image recognition module and a data processing module. The image recognition module is used to identify the distribution of stems in the image, and the data processing module is used to combine the recognition results with the weighing data to calculate the rejection index.

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