Device and method for discharging tobacco leaves in barrel of leaf moistening machine
By using a device and method that combines a blowpipe and a controller, the problem of tobacco leaves being difficult to discharge from the tobacco leaf humidifier cylinder has been solved, achieving efficient discharge of tobacco leaves, reducing residue, and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA TOBACCO SICHUAN IND CO LTD
- Filing Date
- 2026-03-24
- Publication Date
- 2026-05-12
AI Technical Summary
In existing leaf humidifiers, tobacco leaves tend to stick to the inner wall of the drum during the heating and humidification process, making them difficult to remove. Furthermore, at the end of production, there are relatively few tobacco leaves left in the drum, which are difficult to remove through the drum's rotation, resulting in residue problems.
The device employs a combination of a blowpipe, mounting bracket, solenoid valve, and controller. The blowpipe includes a bent mounting section, an extension section, and a blowpipe section. Compressed air is blown along the inner wall of the cylinder, and the speed of the hot air blower of the leaf humidifier is controlled to achieve effective discharge of tobacco leaves.
It effectively reduces the amount of tobacco leaves remaining in the leaf conditioning machine cylinder, improves the efficiency of tobacco leaf discharge, and reduces the amount of tobacco leaves remaining after processing.
Smart Images
Figure CN122004506A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tobacco processing technology, and in particular to a tobacco leaf discharge device and method inside a leaf-moistening machine cylinder. Background Technology
[0002] With the development of tobacco processing technology, leaf humidification machines have emerged. These machines heat and humidify tobacco leaves to achieve the necessary humidity and temperature for subsequent processing. However, during the heating and humidification process inside the drum, some tobacco leaves, containing moisture, adhere to the inner wall of the drum and cannot be discharged. Furthermore, as the humidification process nears its end, the remaining tobacco leaves in the drum are insufficient to be discharged through rotation. Therefore, the leaf humidification technology suffers from the problem of tobacco leaf residue after processing. Summary of the Invention
[0003] Based on this, it is necessary to provide a tobacco leaf discharge device and method, computer equipment, storage medium, and computer product that can reduce tobacco leaf residue in the humidifier cylinder after processing, in order to address the above-mentioned technical problems.
[0004] In a first aspect, this application provides a tobacco leaf discharge device inside a tobacco leaf conditioning machine cylinder, comprising:
[0005] The spray pipe includes an installation section, an extension section, and a spraying section arranged in sequence. The installation section passes through the air inlet of the leaf humidifier cylinder, and one end of the installation section away from the interior of the leaf humidifier cylinder is connected to a compressed air pipeline. The extension section and the spraying section are both located inside the leaf humidifier cylinder. The extension section is arranged along the inner wall of the leaf humidifier cylinder where the air inlet is located. The extension line of the spraying section passes through the discharge port of the leaf humidifier cylinder. The spray pipe is used to receive compressed air flow, and the air flow passes through the installation section, the extension section, and the spraying section in sequence and is sprayed along the inner wall of the leaf humidifier cylinder.
[0006] Mounting bracket for fixing the mounting section of the blow pipe to the air inlet of the leaf humidifier cylinder;
[0007] A solenoid valve, fixed to the compressed air pipeline, is used to connect or disconnect the compressed air flow.
[0008] The controller is communicatively connected to the solenoid valve and the motor of the hot air blower of the leaf humidifier, and is used to control the opening and closing of the solenoid valve and control the motor to rotate at a preset speed.
[0009] In one embodiment, the mounting bracket includes a first bending member and a second bending member;
[0010] The first side of the first bending member and the first side of the second bending member are both connected to the outer wall of the side where the air inlet is located in the leaf humidifier cylinder; the second side of the first bending member and the second side of the second bending member abut against each other, and the mounting section passes through the air inlet of the leaf humidifier cylinder and is sandwiched between the abutting surfaces of the first bending member and the second bending member.
[0011] In one embodiment, a semi-circular groove is provided on the first side of the first bent member and the first side of the second bent member. When the second side of the first bent member is connected to the second side of the second bent member, the two semi-circular grooves form a mounting hole. The mounting hole is correspondingly provided with the air inlet, and the mounting section is clamped in the mounting hole.
[0012] In one embodiment, the sum of the radii of the two semicircular grooves is less than the cross-sectional diameter of the mounting section.
[0013] In one embodiment, the mounting bracket further includes a first fixing bolt, wherein the second side of the first bent member abuts against the second side of the second bent member via the first fixing bolt.
[0014] In one embodiment, the mounting bracket further includes a second fixing bolt. The mounting bracket has a mounting groove, and the leaf humidifier cylinder has a threaded hole. The second fixing bolt is connected to the threaded hole through the mounting groove and abuts against the side wall of the mounting groove.
[0015] In one embodiment, there is a gap between the extension and the inner wall of the leaf-conditioning machine cylinder.
[0016] In one embodiment, a first elbow is provided between the mounting section and the extension section, and one end of the mounting section and one end of the extension section are connected through the first elbow; a second elbow is provided between the extension section and the blowing section, and the other end of the extension section and one end of the blowing section are connected through the second elbow.
[0017] In one embodiment, the blowpipe is made of stainless steel.
[0018] Secondly, this application provides a method for discharging tobacco leaves from the cylinder of a leaf conditioner, wherein the controller included in the tobacco leaf discharge device in the cylinder of the leaf conditioner as described in any of the above embodiments comprises:
[0019] In response to the jetting start request, the solenoid valve on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the installation section, extension section and jetting section of the jetting pipe;
[0020] In response to a request to stop the blowing, the solenoid valve is controlled to close;
[0021] In response to a speed control request, the motor of the hot air blower of the leaf conditioner is controlled to rotate at a preset speed; the preset speed is lower than the normal operating speed of the motor.
[0022] When the time the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.
[0023] Thirdly, this application provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:
[0024] In response to the jetting start request, the solenoid valve on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the installation section, extension section and jetting section of the jetting pipe;
[0025] In response to a request to stop the blowing, the solenoid valve is controlled to close;
[0026] In response to a speed control request, the motor of the hot air blower of the leaf conditioner is controlled to rotate at a preset speed; the preset speed is lower than the normal operating speed of the motor.
[0027] When the time the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.
[0028] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:
[0029] In response to the jetting start request, the solenoid valve on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the installation section, extension section and jetting section of the jetting pipe;
[0030] In response to a request to stop the blowing, the solenoid valve is controlled to close;
[0031] In response to a speed control request, the motor of the hot air blower of the leaf conditioner is controlled to rotate at a preset speed; the preset speed is lower than the normal operating speed of the motor.
[0032] When the time the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.
[0033] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:
[0034] In response to the jetting start request, the solenoid valve on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the installation section, extension section and jetting section of the jetting pipe;
[0035] In response to a request to stop the blowing, the solenoid valve is controlled to close;
[0036] In response to a speed control request, the motor of the hot air blower of the leaf conditioner is controlled to rotate at a preset speed; the preset speed is lower than the normal operating speed of the motor.
[0037] When the time the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.
[0038] In the aforementioned tobacco leaf discharge device and method, computer equipment, storage medium, and computer product within the humidifier cylinder, the device includes a blowpipe, a mounting bracket, a solenoid valve, and a controller. The blowpipe includes an installation section, an extension section, and a blowing section arranged in sequence. The installation section passes through the air inlet of the humidifier cylinder, and one end of the installation section away from the interior of the humidifier cylinder is connected to a compressed air pipeline. The extension section and the blowing section are both located inside the humidifier cylinder. The extension section is arranged along the inner wall of the humidifier cylinder where the air inlet is located. The extension line of the blowing section passes through the discharge port of the humidifier cylinder. The device is configured with specific... The bent structure of the blowpipe allows the blowing direction to point along the inner wall of the cylinder towards the discharge port; the blowpipe is used to receive compressed air flow, which sequentially passes through the mounting section, the extension section, and the blowing section along the inner wall of the leaf humidifier cylinder; the mounting bracket is used to fix the mounting section of the blowpipe at the air inlet of the leaf humidifier cylinder; the solenoid valve is fixed to the compressed air pipeline and is used to connect or disconnect the compressed air flow; the controller is communicatively connected to the solenoid valve and the motor of the hot air fan of the leaf humidifier, respectively, and is used to control the opening or closing of the solenoid valve and control the motor to rotate at a preset speed. Compared to the design of the nozzle and sidewall in related technologies, the airflow introduced by the nozzle in this application can more effectively act on the cylinder wall and corners of the humidifier, blowing down the tobacco leaves adhering to these parts and creating conditions for the subsequent discharge of residual tobacco leaves. At the same time, by controlling the airflow and the speed of the humidifier's hot air fan, the compressed air flow and hot air flow are coordinated with the rotation of the humidifier cylinder itself, further reducing the amount of residual tobacco leaves in the humidifier cylinder. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0040] Figure 1 This is a schematic diagram of the tobacco leaf discharge device inside the leaf conditioning machine cylinder in one embodiment;
[0041] Figure 2 This is a schematic diagram of the structure of the mounting component in one embodiment;
[0042] Figure 3 This is a schematic diagram of the structure at the feed inlet of the leaf-conditioning machine cylinder in one embodiment;
[0043] Figure 4 This is a schematic diagram of the mounting component in another embodiment;
[0044] Figure 5 This is a schematic diagram of the blowpipe structure in one embodiment;
[0045] Figure 6 This is a schematic flowchart of a method for discharging tobacco leaves from the drum of a leaf-conditioning machine in one embodiment;
[0046] Figure 7 This is an internal structural diagram of a computer device in one embodiment.
[0047] Explanation of reference numerals in the attached figures:
[0048] 100-Pulse-blowing pipe, 110-Installation section, 120-Extension section, 130-Pulse-blowing section, 140-First elbow, 150-Second elbow, 200-Mounting bracket, 210-First bent component, 211-First side of the first bent component, 212-Second side of the first bent component, 220-Second bent component, 221-First side of the second bent component, 222-Second side of the second bent component, 230-Mounting hole, 240-First fixing bolt, 250-Second fixing bolt, 260-Mounting groove, 270-Through hole, 300-Solenoid valve, 400-Controller, 500-Grouting machine cylinder. Detailed Implementation
[0049] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0051] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
[0052] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0053] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.
[0054] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.
[0055] As described in the background section, existing tobacco leaf humidifying machine technology suffers from the problem of tobacco leaf residue after processing. The inventors have discovered that this problem arises because, with the development of tobacco processing technology, tobacco leaf humidifying machines have emerged. These machines heat and humidify the tobacco leaves to achieve the humidity and temperature required for subsequent processing. The humidifying machine consists of a cylinder with an inlet at one end and an outlet at the other. Tobacco leaves enter the cylinder through the inlet for heating and humidification. The cylinder rotates continuously during production and has a downward horizontal tilt from the inlet to the outlet, allowing the processed tobacco leaves to continuously move from the inlet to the outlet before being discharged into subsequent processing steps.
[0056] However, during the heating and humidification process of the tobacco leaves inside the drum, on the one hand, because the treated tobacco leaves contain moisture, some leaves will stick to the inner wall of the drum and cannot be discharged; on the other hand, when the leaf humidifier is nearing the end of production, there are fewer tobacco leaves inside the drum. Observation shows that the compressed air flow and hot air flow will hinder the movement of these few tobacco leaves towards the drum outlet. At this point, it is difficult to discharge these few tobacco leaves from the drum by relying on the rotation of the drum and its own tilt angle. Therefore, after production, some tobacco leaves will remain stuck to the inner wall of the drum, and some tobacco leaves, although not stuck to the inner wall, will still be unable to be discharged from the drum.
[0057] In related technologies, compressed air nozzles are usually opened on the side wall of the cylinder opposite the discharge port. When each batch of production is nearing its end, there are no more tobacco leaves upstream of the humidifier, and all the tobacco leaves enter the humidifier cylinder. The automatic control program switches the humidifier to the final stage. At this time, the cylinder speed will increase, and the compressed air nozzles will blow compressed air into the cylinder. The purpose is to continuously blow the tobacco leaves remaining in the cylinder toward the discharge port of the humidifier so that the tobacco leaves can be discharged from the humidifier cylinder.
[0058] In existing technology, the blowing nozzle forms an angle with the adjacent sidewall of the cylinder where the feed inlet is located. This prevents the tobacco leaves adhering to the corner where the sidewall of the feed inlet connects to the adjacent sidewall (i.e., the corner of the cylinder) from being blown off, leaving the tobacco leaves at the corner of the cylinder's sidewall still sticking inside. Furthermore, observations have shown that the existing blowing method also leaves some tobacco leaves that are not adhered to the inner wall of the cylinder at the corner where the sidewall of the feed inlet connects to the adjacent sidewall. Additionally, due to the hot airflow, some unadhered tobacco leaves remain in the middle of the cylinder after production and fail to be discharged from the humidifier cylinder.
[0059] Based on the above reasons, the present invention provides a tobacco leaf discharge device inside the barrel of a leaf-conditioning machine, which aims to reduce the tobacco leaf residue after processing by the leaf-conditioning machine.
[0060] In one embodiment, such as Figure 1As shown, a tobacco leaf discharge device inside a leaf humidifier cylinder is provided, including: a blow pipe 100, a mounting bracket 200, a solenoid valve 300, and a controller 400;
[0061] The blowing pipe 100 includes an installation section 110, an extension section 120, and a blowing section 130 arranged in sequence. The installation section 110 passes through the air inlet of the humidifier cylinder 500, and one end of the installation section 110 away from the interior of the humidifier cylinder is connected to a compressed air pipeline. The extension section 120 and the blowing section 130 are both located inside the humidifier cylinder. The extension section 120 is arranged along the inner wall of the humidifier cylinder where the air inlet is located. The extension line of the blowing section 130 passes through the discharge port of the humidifier cylinder. The blowing pipe 100 is used to connect to the compressed air flow. The airflow passes sequentially through the mounting section 110, the extension section 120, and the spraying section 130, spraying along the inner wall of the humidifier cylinder. The mounting bracket 200 is used to fix the mounting section 110 of the spraying pipe 100 at the air inlet of the humidifier cylinder. The solenoid valve 300 is fixed on the compressed air pipeline and is used to connect or disconnect the compressed air flow. The controller 400 is communicatively connected to the solenoid valve 300 and the motor (not shown in the figure) of the humidifier hot air blower, and is used to control the opening or closing of the solenoid valve 300 and control the motor to rotate at a preset speed.
[0062] Optionally, the spray pipe 100 includes a mounting section 110, an extension section 120, and a spray section 130 arranged in sequence. The mounting section 110 passes through the air inlet of the humidifier cylinder, and one end of the mounting section 110 away from the interior of the humidifier cylinder is connected to a compressed air pipeline. Both the extension section 120 and the spray section 130 are located inside the humidifier cylinder. The extension section 120 is arranged along the inner sidewall of the humidifier cylinder where the air inlet is located, that is, the extension section 120 extends close to this sidewall. The extension line of the spray section 130 passes through the plane where the discharge port of the cylinder is located. In some embodiments, there is a gap between the extension section 120 and the inner sidewall of the humidifier cylinder 500, thereby preventing the rotation of the humidifier cylinder 500 from affecting the fixation of the spray pipe 100; the spray pipe 100 is used to receive compressed air flow, which passes through the mounting section 110, the extension section 120, and the spray section 130 in sequence, and is finally sprayed out along the inner sidewall of the humidifier cylinder.
[0063] Optionally, the mounting bracket 200 is connected to the outer wall of the humidifier cylinder corresponding to the air inlet, used to fix the mounting section 110 of the spray pipe 100 at the air inlet, ensuring that the spray pipe 100 remains stable during cylinder rotation and working vibration. The controller 400 can be a programmable logic controller 400 PLC or an industrial control computer, etc. The controller 400 is communicatively connected to the solenoid valve 300 and the motor that drives the hot air fan of the humidifier. The controller 400 is used to control the opening or closing of the solenoid valve 300 and control the motor to rotate at a preset speed according to a preset program or operating instructions.
[0064] The tobacco leaf discharge device inside the aforementioned leaf-conditioning machine cylinder includes a blowpipe 100, a mounting bracket 200, a solenoid valve 300, and a controller 400. The blowpipe 100 includes a mounting section 110, an extension section 120, and a blowpipe section 130 arranged in sequence. The mounting section 110 passes through the air inlet of the leaf-conditioning machine cylinder, and one end of the mounting section 110 away from the interior of the leaf-conditioning machine cylinder is connected to a compressed air pipeline. The extension section 120 and the blowpipe section 130 are both located inside the leaf-conditioning machine cylinder. The extension section 120 is arranged along the inner wall of the leaf-conditioning machine cylinder where the air inlet is located. The extension line of the blowpipe section 130 passes through the discharge port of the leaf-conditioning machine cylinder. The blowpipe section 130 is formed by a blowpipe with a specific bending structure. Pipe 100 allows the blowing direction to point along the inner wall of the cylinder towards the discharge port; the blowing pipe 100 is used to connect to the compressed air flow, which sequentially passes through the mounting section 110, the extension section 120, and the blowing section 130 along the inner wall of the leaf humidifier cylinder; mounting bracket 200 is used to fix the mounting section 110 of the blowing pipe 100 at the air inlet of the leaf humidifier cylinder; solenoid valve 300 is fixed on the compressed air pipeline and is used to connect or disconnect the compressed air flow; controller 400 is communicatively connected to the solenoid valve 300 and the motor of the hot air fan of the leaf humidifier, respectively, and is used to control the opening or closing of the solenoid valve 300 and control the motor to rotate at a preset speed. Compared to the setting method in related technologies where the nozzle and sidewall form an angle, the airflow introduced by the nozzle 100 of this application can more effectively act on the cylinder wall and corners of the leaf humidifier, blowing down the tobacco leaves adhering to these parts, creating conditions for the subsequent discharge of residual tobacco leaves. At the same time, the controller 400 schedules the airflow and the speed of the leaf humidifier's hot air fan, so that the compressed air flow and hot air flow cooperate with the rotation of the leaf humidifier cylinder itself, further reducing the residual tobacco leaves in the leaf humidifier cylinder.
[0065] In one embodiment, such as Figure 2 As shown, the mounting bracket 200 includes a first bending member 210 and a second bending member 220;
[0066] The first side 211 of the first bending member 210 and the first side 221 of the second bending member 220 are both connected to the outer wall of the side where the air inlet of the leaf humidifier cylinder is located; the second side 212 of the first bending member 210 and the second side 222 of the second bending member 220 abut against each other; the mounting section 110 passes through the air inlet of the leaf humidifier cylinder and is sandwiched between the abutting surfaces of the first bending member 210 and the second bending member 220.
[0067] For example, in a specific implementation, the second side 212 of the first bent member 210 and the second side 222 of the second bent member 220 can be made of metal sheet (such as stainless steel sheet or galvanized steel sheet) through a bending process to form an L-shaped or U-shaped cross section to provide sufficient structural strength and rigidity. The second side 212 of the first bent member 210 and the second side 222 of the second bent member 220 clamp the mounting section 110 through the abutment surface, forming a structure similar to a pipe clamp.
[0068] In this embodiment, the mounting component achieves reliable fixation of the blowpipe 100 through a split clamping structure. During installation, the first bending member 210 and the second bending member 220 can be pre-installed on the outer wall of the cylinder. Then, the blowpipe 100 is inserted into the air inlet, and the blowpipe 100 is clamped by the mutual abutment of the two bending members. This structure is convenient to install, eliminating the need to machine additional threads or grooves on the blowpipe 100, thus avoiding stress concentration and strength reduction caused by opening holes or grooves. At the same time, the clamping force is uniform, which can adapt to the vibration environment during cylinder operation and ensure the long-term stable operation of the blowpipe 100.
[0069] In one embodiment, see further. Figure 2 The first side 211 of the first bent component 210 and the first side 221 of the second bent component 220 are both provided with semi-circular grooves. When the second side 212 of the first bent component 210 and the second side 222 of the second bent component 220 are connected, the two semi-circular grooves form a mounting hole 230. The mounting hole 230 is set in correspondence with the air inlet, and the mounting section 110 is clamped in the mounting hole 230.
[0070] Optionally, both the first side 211 of the first bent member 210 and the first side 221 of the second bent member 220 are provided with semi-circular grooves. When the second side 212 of the first bent member 210 and the second side 222 of the second bent member 220 are connected, the two semi-circular grooves align to form a circular mounting hole 230. The mounting hole 230 corresponds to the air inlet, and the mounting section 110 of the blowpipe 100 passes through the mounting hole 230 and is clamped and fixed. The semi-circular grooves can be formed by machining (such as milling, wire cutting) or stamping processes, and the groove surface can maintain a certain smoothness to reduce wear on the surface of the blowpipe 100.
[0071] In this embodiment, the first side 211 of the first bending member 210 and the semi-circular groove of the first side 221 of the second bending member 220 are engaged to form a mounting hole 230, which realizes precise radial fixation of the blowpipe 100. The shape of the mounting hole 230 matches the shape of the blowpipe 100, which can provide a uniform clamping force of 360 degrees and prevent the blowpipe 100 from being displaced in the axial and circumferential directions. At the same time, this engagement structure is easy to disassemble and maintain. When the blowpipe 100 needs to be replaced, it can be taken out simply by disassembling the two bending members without any destructive operation.
[0072] In one embodiment, the sum of the radii of the two semicircular grooves is less than the cross-sectional diameter of the mounting section 110.
[0073] Optionally, the sum of the radii of the two semicircular grooves 301 is less than the cross-sectional diameter of the mounting section 110. That is, when the first bending member 210 and the second bending member 220 are engaged, the diameter of the circular space formed by the two semicircular grooves is slightly smaller than the outer diameter of the blowpipe 100. For example, if the outer diameter of the blowpipe 100 is 12mm, then the radii of the two semicircular grooves can be designed to be 5.8mm each (the sum of the radii is 11.6mm), forming an interference fit of 0.4mm.
[0074] In this embodiment, when the first bending member 210 and the second bending member 220 are connected by fasteners, the interference fit causes the edge of the mounting hole 230 to generate an elastic pressing force on the surface of the blowpipe 100, forming a reliable friction lock. This effectively prevents the blowpipe 100 from loosening under airflow impact or vibration without the need for additional locking elements, thereby simplifying the structure and improving the reliability of the mounting section 110 that fixes the blowpipe 100.
[0075] In one embodiment, such as Figure 3 and Figure 4 As shown, the mounting bracket 200 also includes a first fixing bolt 240, and the second side 212 of the first bent member 210 and the second side 222 of the second bent member 220 abut against each other through the first fixing bolt 240.
[0076] Optionally, through holes 270 can be correspondingly provided on the first bent component 210 and the second bent component 220. After the first fixing bolt 240 passes through the through hole 270, it engages with a nut to lock the first bent component 210 and the second bent component 220. The first fixing bolt 240 can be made of ordinary carbon steel or stainless steel. Depending on the vibration environment, a spring washer or a lock nut (such as a nylon insert lock nut) can be added to prevent loosening.
[0077] In this embodiment, the first bent component 210 and the second bent component 220 are fastened together by the first fixing bolt 240. The bolt connection method is simple and reliable, the preload is controllable, and it is convenient for on-site installation and adjustment. The operator can adjust the tightening torque of the bolt according to actual needs, thereby controlling the clamping force on the blowpipe 100 and avoiding deformation or damage to the blowpipe 100 due to excessive torque.
[0078] In one embodiment, such as Figure 2 and Figure 3 As shown, the mounting bracket 200 also includes a second fixing bolt 250. The mounting bracket 200 has a mounting groove 260, and the leaf humidifier cylinder has a threaded hole. The second fixing bolt is connected to the threaded hole through the mounting groove 260 and abuts against the side wall of the mounting groove 260.
[0079] Optionally, the mounting bracket 200 also includes a second fixing bolt. The mounting bracket 200 has a mounting groove 260, which can be an oblong hole or a U-shaped opening groove. A threaded hole is provided at a corresponding position on the outer side wall of the leaf humidifier cylinder. The second fixing bolt passes through the mounting groove 260 and is threadedly connected to the threaded hole of the leaf humidifier cylinder. The bolt head abuts against the side wall of the mounting groove 260, thereby fixing the mounting bracket 200 to the cylinder. The long axis of the mounting groove 260 can be designed to be along the axial or circumferential direction of the cylinder to facilitate fine-tuning of the position during installation.
[0080] In this embodiment, the mounting bracket 200 has an oblong hole or U-shaped groove with a mounting slot 260 to provide an adjustable margin for the installation position. This allows for fine-tuning of the position of the blow pipe 100 during installation according to the actual situation, ensuring that the blow section 130 is aligned with the optimal blow angle. At the same time, this connection method is also convenient for disassembly and maintenance. When it is necessary to clean or replace the blow pipe 100, the mounting bracket 200 can be removed simply by loosening the bolts, without the need to completely disassemble other components.
[0081] In one embodiment, a solenoid valve 300 is installed on the compressed air pipeline, and the compressed air pipeline is connected to the installation section 110 through the solenoid valve 300; the controller 400 is communicatively connected to the solenoid valve 300.
[0082] Optionally, a solenoid valve 300 is installed on the compressed air pipeline, which is connected to the mounting section 110 of the blowpipe 100 via the solenoid valve 300. The controller 400 is communicatively connected to the solenoid valve 300, and controls the on / off supply of air to the blowpipe 100 by controlling the opening and closing of the solenoid valve 300. The solenoid valve 300 can be a direct-acting or pilot-operated type. The appropriate pipe diameter and interface type (such as G1 / 4 or G3 / 8 threaded interface) are selected according to the compressed air pressure and pipe diameter. The coil voltage of the solenoid valve 300 can be selected from common specifications such as DC24V or AC120V according to the power supply of the control system.
[0083] In this embodiment, the controller 400 achieves precise control of the air path through the solenoid valve 300. The solenoid valve 300 has a fast response speed and can achieve millisecond-level switching control, providing a precise execution means for subsequent multi-step injection control strategies. At the same time, the solenoid valve 300 can be installed close to the injection pipe 100, reducing the length of the air pipe and improving the real-time performance of the injection response. The electrical connection between the controller 400 and the solenoid valve 300 is simple and reliable, facilitating automated control.
[0084] In one embodiment, such as Figure 5 As shown, a first elbow 140 is provided between the installation section 110 and the extension section 120, and one end of the installation section 110 and one end of the extension section 120 are connected by the first elbow 140; a second elbow 150 is provided between the extension section 120 and the blowing section 130, and the other end of the extension section 120 is connected to one end of the blowing section 130 by the second elbow 150.
[0085] Optionally, the first elbow 140 and the second elbow 150 can be standard 90-degree elbows, or other angles such as 120-degree or 135-degree elbows can be used as needed. The connection between the elbows and the pipe sections can be threaded, welded, or ferrule-type. For example, external threads are machined at the pipe section ends, and internal threads are machined at the elbow interfaces, using PTFE tape or sealant to achieve a seal. For stainless steel pipes, argon arc welding can also be used to ensure connection strength and sealing. In terms of material selection, the materials of the first elbow 140 and the second elbow 150 should be consistent with the pipe section material of the blowpipe 100 to avoid electrochemical corrosion.
[0086] In one embodiment, the blowpipe 100 is made of stainless steel. The first elbow 140 and the second elbow 150 can also be made of stainless steel. The working environment of the leaf-humidifying machine involves high temperature, high humidity, and acidic or alkaline substances in the tobacco leaves. Ordinary carbon steel pipes are prone to rust and corrosion, and rust residue may contaminate the tobacco leaves. Stainless steel has excellent corrosion resistance and high-temperature resistance, enabling it to work stably in humid environments for extended periods without rusting or releasing pollutants, ensuring the purity of the processed tobacco leaves. Simultaneously, stainless steel has high strength, capable of withstanding the pressure impact of compressed air and cylinder vibration, extending the service life of the blowpipe 100.
[0087] In this embodiment, the connection between the sections of the jet pipe 100 is achieved through the first elbow 140 and the second elbow 150. The use of standard elbow components can reduce the processing difficulty and cost, and facilitate the flexible adjustment of the length and angle of each section according to the internal space dimensions of the cylinder. The elbow connection allows the jet pipe 100 to accurately achieve the orientation requirements of extending along the cylinder wall and pointing towards the discharge port. When it is necessary to change the jet angle, only elbows of different angles need to be replaced, which has good adaptability.
[0088] In one embodiment, such as Figure 6 As shown, a method for discharging tobacco leaves from the barrel of a leaf conditioner is provided, applied to the controller 400 included in the tobacco leaf discharge device inside the barrel of the leaf conditioner according to any of the above embodiments. The method includes:
[0089] In step S602, in response to the jetting start request, the solenoid valve 300 on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the mounting section 110, extension section 120 and jetting section 130 of the jetting pipe 100.
[0090] Optionally, after the upstream equipment of the leaf humidifier has fed all the tobacco leaves into the leaf humidifier cylinder, the leaf humidifier enters the final stage. At this time, there are a large number of tobacco leaves in the cylinder. In order not to affect the processing of tobacco leaves in the cylinder, after the tobacco leaves have been running in the leaf humidifier cylinder for a preset time period (set according to actual processing needs), the controller 400 responds to the automatic triggering of the injection start request or the injection start request initiated by the technician, and controls the solenoid valve 300 on the compressed air pipeline to open. Compressed air is injected into the leaf humidifier cylinder through the installation section 110, extension section 120 and injection section 130 of the injection pipe 100, blowing down the tobacco leaves adhering to the inner wall of the leaf humidifier cylinder. The tobacco leaves that are blown down are mixed with the remaining tobacco leaves in the leaf humidifier cylinder and move together towards the discharge port of the leaf humidifier.
[0091] In step S604, in response to the jetting stop request, the solenoid valve 300 is closed.
[0092] Optionally, after a period of continuous blowing (this time can be preset according to process experiments, for example, 10-30 seconds), compressed air will blow the tobacco leaves adhering to the inner wall of the cylinder down. Due to the action of the compressed air jet, a small portion of the tobacco leaves will remain at the front of the cylinder and unable to move towards the discharge port. Therefore, after the tobacco leaves adhering to the inner wall of the cylinder are blown down, the controller 400 automatically triggers a blowing stop request according to the program, or responds to a technician's request, controlling the solenoid valve 300 to close, stopping the blowing of compressed air into the humidifier cylinder. At this time, there is no interference from the compressed air jet inside the humidifier cylinder.
[0093] Step S606: In response to the speed control request, control the motor of the hot air blower of the leaf humidifier to rotate at a preset speed.
[0094] The preset speed is lower than the normal operating speed of the motor.
[0095] Optionally, as the leaf-conditioning machine cylinder rotates and tilts, the tobacco leaves inside continuously flow towards the discharge port and are discharged from the cylinder. When there are fewer tobacco leaves inside the cylinder, the hot airflow from the hot air fan inside the cylinder may hinder some leaves from moving towards the discharge port, causing them to accumulate in the middle of the cylinder. At this time, the controller 400, responding to a speed control request automatically triggered by the program or initiated by a technician, controls the motor of the hot air fan to rotate at a preset speed, such as reducing the frequency of the hot air fan to 10% of the operating speed, thus reducing the impact of the hot airflow inside the cylinder and allowing the tobacco leaves accumulated in the middle of the cylinder to continue moving towards the discharge port.
[0096] Step S608: When the time length during which the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.
[0097] Optionally, when the motor rotates at a preset speed for a preset time period, that is, as the tobacco leaves inside the humidifier cylinder continuously move towards the discharge port and are discharged from the cylinder, the amount of tobacco leaves inside the humidifier cylinder gradually decreases, and the speed at which the tobacco leaves move towards the discharge port gradually slows down. The controller then controls the solenoid valve 300 to open, sequentially blowing air through the installation section 110, extension section 120, and blowing section 130 of the blowing pipe 100 into the humidifier cylinder. At this time, the solenoid valve 300 is opened again to blow compressed air into the cylinder, causing the remaining small amount of tobacco leaves inside the humidifier cylinder to accelerate towards the discharge port until they are discharged from the cylinder and flow into downstream equipment. It is understood that the specific setting of the preset time period can be determined based on actual production needs, or based on the time required when the movement speed of the remaining tobacco leaves does not support complete discharge due to the cylinder's rotation and tilt angle. Furthermore, the reopening of the solenoid valve 400 can also be performed in response to instructions from technical personnel.
[0098] In this embodiment, the initial blowing utilizes directional airflow along the wall to peel off tobacco leaves adhering to the corners of the cylinder wall, solving the problem of unremovable corner tobacco leaves in related technologies. After blowing, the air source is promptly shut off and the hot air fan speed is reduced, eliminating interference from continuous blowing and hot airflow on the normal movement of the tobacco leaves. This allows the blown-off tobacco leaves to move smoothly towards the discharge port due to the cylinder's rotation and tilt angle. When the amount of tobacco leaves decreases and the moving speed slows down, blowing is restarted to provide auxiliary thrust, accelerating the discharge of remaining tobacco leaves and preventing a small amount of tobacco leaves from remaining in the middle of the cylinder. These steps can be automatically executed by the controller 400 program without manual intervention, ensuring the consistency and reliability of the discharge operation at the end of each production stage, effectively reducing tobacco waste and improving processing cleanliness.
[0099] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.
[0100] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 7 As shown, the computer device includes a processor, memory, and network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores data such as preset rotation speed and preset time periods. The network interface communicates with external terminals via a network connection. When executed by the processor, the computer program implements a method for discharging tobacco leaves from the drum of a leaf-conditioning machine.
[0101] Those skilled in the art will understand that Figure 7The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.
[0102] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.
[0103] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.
[0104] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.
[0105] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.
[0106] In the description of this specification, references to terms such as "some embodiments," "other embodiments," and "ideal embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.
[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0108] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A tobacco leaf discharge device inside the cylinder of a leaf-conditioning machine, characterized in that, include: The spray pipe includes an installation section, an extension section, and a spraying section arranged in sequence. The installation section passes through the air inlet of the leaf humidifier cylinder, and one end of the installation section away from the interior of the leaf humidifier cylinder is connected to a compressed air pipeline. The extension section and the spraying section are both located inside the leaf humidifier cylinder. The extension section is arranged along the inner wall of the leaf humidifier cylinder where the air inlet is located. The extension line of the spraying section passes through the discharge port of the leaf humidifier cylinder. The spray pipe is used to receive compressed air flow, and the air flow passes through the installation section, the extension section, and the spraying section in sequence and is sprayed along the inner wall of the leaf humidifier cylinder. Mounting bracket for fixing the mounting section of the blow pipe to the air inlet of the leaf humidifier cylinder; A solenoid valve, fixed to the compressed air pipeline, is used to connect or disconnect the compressed air flow. The controller is communicatively connected to the solenoid valve and the motor of the hot air blower of the leaf humidifier, and is used to control the opening and closing of the solenoid valve and control the motor to rotate at a preset speed.
2. The apparatus according to claim 1, characterized in that, The mounting bracket includes a first bent component and a second bent component; The first side of the first bending member and the first side of the second bending member are both connected to the outer wall of the side where the air inlet is located in the leaf humidifier cylinder; the second side of the first bending member and the second side of the second bending member abut against each other, and the mounting section passes through the air inlet of the leaf humidifier cylinder and is sandwiched between the abutting surfaces of the first bending member and the second bending member.
3. The apparatus according to claim 2, characterized in that, Both the first side of the first bent component and the first side of the second bent component are provided with semi-circular grooves. When the second side of the first bent component and the second side of the second bent component are connected, the two semi-circular grooves form a mounting hole. The mounting hole is provided in correspondence with the air inlet, and the mounting section is clamped in the mounting hole.
4. The apparatus according to claim 3, characterized in that, The sum of the radii of the two semicircular grooves is less than the cross-sectional diameter of the mounting section.
5. The apparatus according to claim 2, characterized in that, The mounting bracket further includes a first fixing bolt, and the second side of the first bent member abuts against the second side of the second bent member through the first fixing bolt.
6. The apparatus according to claim 2, characterized in that, The mounting bracket also includes a second fixing bolt. The mounting bracket has a mounting groove, and the leaf humidifier cylinder has a threaded hole. The second fixing bolt is connected to the mounting groove and the threaded hole and abuts against the side wall of the mounting groove.
7. The apparatus according to claim 1, characterized in that, There is a gap between the extension section and the inner wall of the leaf humidifier cylinder.
8. The apparatus according to claim 1, characterized in that, A first elbow is provided between the installation section and the extension section, and one end of the installation section and one end of the extension section are connected through the first elbow; a second elbow is provided between the extension section and the blowing section, and the other end of the extension section is connected to one end of the blowing section through the second elbow.
9. The apparatus according to any one of claims 1 to 8, characterized in that, The blowpipe is made of stainless steel.
10. A method for discharging tobacco leaves from the cylinder of a leaf-conditioning machine, characterized in that, The controller used in the tobacco leaf discharge device inside the leaf conditioning machine cylinder according to any one of claims 1 to 9 includes: In response to the jetting start request, the solenoid valve on the compressed air pipeline is opened to sequentially jet airflow into the leaf humidifier cylinder through the installation section, extension section and jetting section of the jetting pipe; In response to a request to stop the blowing, the solenoid valve is controlled to close; In response to a speed control request, the motor of the hot air blower of the leaf conditioner is controlled to rotate at a preset speed; the preset speed is lower than the normal operating speed of the motor. When the time the motor rotates at the preset speed meets the preset time period, the solenoid valve is controlled to open so that airflow is sequentially sprayed onto the leaf humidifier cylinder through the mounting section, the extension section and the spraying section of the spray pipe.