A tobacco feeding system

Abstract

The present application discloses a tobacco feeding system, comprising a multi-speed humidity control device, a gas heater, a multi-speed temperature and humidity control feeding device, a variable speed fan, a gas drying device, and a gas purification device connected in a circulation manner through a gas pipeline; the multi-speed temperature and humidity control feeding device comprises a fully enclosed outer cover and a tobacco conveying component enclosed in the outer cover, the tobacco conveying component comprises a mesh tobacco conveyor belt, the outer cover is provided with a feeding device air inlet, a sealed tobacco output port, a feeding device air outlet, and a tobacco cloth outlet; the variable speed fan provides power for the circulating gas, and the multi-speed humidity control device adjusts the humidity of the gas in stages according to the temperature and humidity requirements of the tobacco. The present application utilizes a fully enclosed outer cover to enclose the tobacco conveying component to prevent the tobacco from being affected by the temperature and humidity of the production area, and pre-treats the gas and adjusts the temperature and humidity in advance outside the outer cover to ensure the quality of the tobacco.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette production, and more specifically, to a tobacco cutting feeding system. Background Art

[0002] Extensive research has been conducted both domestically and internationally on precise control technologies for tobacco shred production. Feeders, primarily used in tobacco shred production lines, are crucial equipment in the tobacco manufacturing process. They use sensors to detect material temperature, humidity, and other signals, enabling real-time monitoring of output flow and controlling material delivery flow and start / stop.

[0003] However, the current traditional tobacco feeders mainly adopt open or semi-open structures, and the quality of tobacco is easily affected by the temperature and humidity in the production area.

[0004] Furthermore, tobacco feeders typically utilize a combination of horizontal and steep-angle belts for transport, resulting in a complex motion control structure. Furthermore, the output end of traditional feeders is fixed and lacks adjustment capabilities. Adjusting the feed height requires a matching steep-angle belt structure, resulting in high production costs. Summary of the Invention

[0005] The present application provides a tobacco feeding system, which uses a fully enclosed outer cover to enclose the tobacco conveying components to prevent the tobacco from being affected by the temperature and humidity of the production area, and pre-treats the gas and adjusts the temperature and humidity outside the outer cover to ensure the quality of the tobacco.

[0006] The present application provides a tobacco feeding system, comprising a multi-speed humidity control device, a gas heater, a multi-speed temperature and humidity control feeding device, a variable speed fan, a gas drying device and a gas purification device, which are circulated through a gas pipeline;

[0007] The multi-stage temperature and humidity regulating feeding device comprises a fully enclosed outer cover and a tobacco conveying component enclosed in the outer cover, the tobacco conveying component comprises a mesh tobacco conveyor belt, and the outer cover is provided with an air inlet of the feeding device, a sealed tobacco output port, an air outlet of the feeding device and a tobacco dispensing port;

[0008] The variable speed fan provides power for the circulating gas, the multi-speed humidity control device adjusts the humidity of the gas in stages according to the temperature and humidity requirements of the tobacco, the gas heater adjusts the temperature of the gas according to the temperature and humidity requirements of the tobacco, the gas drying device removes water vapor inside the gas, and the gas purification device removes solid particle impurities inside the gas.

[0009] Preferably, the mesh tobacco conveyor belt is inclined.

[0010] Preferably, the multi-speed humidity regulating device 1 includes an outer shell, a vertical straight-through pipe, an exhaust pipe and a plurality of humidifying components arranged from bottom to top. A sealing cover is provided between adjacent humidifying components, and the sealing cover is sealed to the outer shell so that each humidifying component forms a humidifying cabin, and the exhaust outlet of the humidifying component is connected to the vertical straight-through pipe, and the vertical straight-through pipe is connected to the exhaust pipe.

[0011] Preferably, the humidification component includes an air inlet valve, a spiral mesh tube, a humidification chamber and an air outlet valve;

[0012] The outlet of the air inlet valve is connected to the spiral mesh tube, and the circulating gas enters the spiral mesh tube through the air inlet valve;

[0013] The spiral mesh tube is spiral-shaped and has a plurality of mesh holes;

[0014] Distilled water is provided at the bottom of the humidification chamber, a water-free space exists between the top of the humidification chamber and the sealing cover plate, and the lower part of the spiral mesh tube is immersed in distilled water;

[0015] The air inlet of the air outlet valve is connected to the second air outlet on the outer shell of the upper end of the humidification cabin, and the air outlet of the air outlet valve is communicated with the vertical straight-through pipe.

[0016] Preferably, a moisture inlet pipe is provided between the first air outlet of the outer shell of the humidifying chamber of the next-stage humidifying component and the lower end of the spiral mesh tube of the previous-stage humidifying component, and the air inlet valve of the previous-stage humidifying component is provided on the moisture inlet pipe.

[0017] Preferably, the tobacco conveying component further comprises a tobacco temperature and humidity regulating assembly, which comprises a bottom longitudinal main gas conduit, a bottom transverse secondary gas conduit, and bottom longitudinal secondary gas conduits symmetrically arranged on both sides of the bottom transverse secondary gas conduit, a vertical conduit assembly, an upper main conduit assembly, and a gas conduit array;

[0018] The bottom longitudinal gas main conduit is connected to the bottom longitudinal gas secondary conduits on both sides through the bottom transverse gas secondary conduits;

[0019] The vertical conduit assembly and upper main conduit assembly on each side are equipped with the same number of vertical conduits and upper main conduits; each bottom longitudinal gas secondary conduit is connected to the vertical conduit on the same side, each vertical conduit is equipped with a vertical conduit gas speed regulating valve, and the upper end of each vertical conduit is connected to the corresponding upper main conduit through the telescopic end of the vertical hose;

[0020] A gas duct array is provided between each group of symmetrical upper main ducts, and the gas duct array includes a transverse gas duct array and a vertical gas duct array. The bottom end of the vertical gas duct of the vertical gas duct array is connected to the corresponding transverse gas duct of the transverse gas duct array, and the vertical gas duct faces the mesh tobacco conveyor belt.

[0021] Preferably, temperature regulating heat conducting wires are provided between the transverse gas ducts.

[0022] Preferably, at least one end of the upper main conduit is provided with an axial telescopic end, and at least one end of the upper main conduit is provided with a hinged transmission plate hinged to the outer shaft end of the gear of the driving wheel or the driven wheel of the mesh tobacco conveyor belt.

[0023] Preferably, the tobacco conveying component further comprises a feeder base and a pulley preload adjustment assembly, and the pulley preload adjustment assembly comprises an adapter, a linear slider, a linear slide rail, a longitudinal displacement adjustment rod and a preload adjustment motor;

[0024] The gear positioning seat of the driving wheel of the mesh tobacco conveyor belt is fixedly connected to the linear slider through the adapter seat;

[0025] A linear slide is fixed on the upper end of the driving wheel positioning seat, and the linear slide is slidably connected to the linear slider;

[0026] A longitudinal displacement adjustment rod is rotatably provided on the adapter seat, a first end of the longitudinal displacement adjustment rod is fixedly connected to the preload adjustment motor, and a second end of the longitudinal displacement adjustment rod is fixedly connected to the feeder base.

[0027] Preferably, the tobacco conveying component further comprises a tobacco output height adjustment assembly, which comprises a hydraulic push rod, an upper connecting support for the hydraulic push rod, and a lower connecting support for the hydraulic push rod;

[0028] The hydraulic push rod is hinged to the lower end of the hydraulic push rod upper connecting support, and the upper end of the hydraulic push rod upper connecting support is fixedly connected to the gear positioning seat of the driven wheel;

[0029] The hydraulic push rod is hinged to the upper end of the hydraulic push rod lower connecting support, and the lower end of the hydraulic push rod lower connecting support is fixedly connected to the driven wheel positioning seat.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0032] Figure 1 A schematic diagram of the structure of the tobacco feeding system provided in this application;

[0033] Figure 2 A structural diagram of the multi-stage humidity control device provided in this application;

[0034] Figure 3A structural diagram of the multi-stage temperature and humidity adjustment feeding device provided in this application (only a portion of the outer cover is shown to illustrate the internal structure);

[0035] Figure 4 A partial structural diagram of the multi-stage temperature and humidity adjustment feeding device provided in this application;

[0036] Figure 5 This is a schematic diagram of the structure of the temperature and humidity adjustment component provided in this application. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] like Figure 1 As shown, the tobacco feeding system provided by the present application includes a multi-speed humidity control device 1, a gas heater 2, a multi-speed temperature and humidity control feeding device 3, a variable speed fan 4, a gas drying device 5 and a gas purification device 6. Figure 1 As shown, the multi-speed humidity regulating device 1 and the gas heater 2, the gas heater 2 and the multi-speed temperature and humidity regulating feeding device 3, the multi-speed temperature and humidity regulating feeding device 3 and the variable speed fan 4, the variable speed fan 4 and the gas drying device 5, the gas drying device 5 and the gas purification device 6, and the gas purification device 6 and the multi-speed humidity regulating device 1 are all connected through gas pipelines, so that the gas circulates in the tobacco feeding system.

[0042] Variable-speed fan 4 regulates the conveying speed of the circulating gas within the pipeline. The gas first passes through a gas drying device 5 to remove water vapor from the gas. It then enters a gas purification device 6 to remove solid particulate impurities. The gas then enters a multi-stage humidity control device 1, where the humidity of the clean gas is graded and adjusted according to the temperature and humidity requirements of the tobacco. It then enters a gas heater 2, where the temperature of the gas is adjusted accordingly. Finally, it enters a multi-stage temperature and humidity control feeding device 3, where the temperature and humidity of the tobacco at different locations on the conveyor belt are further adjusted to improve the conveying quality of the tobacco. The circulating gas enters the variable-speed fan 4 from the upper end of the multi-stage temperature and humidity control feeding device 3 and then returns to the gas drying device 5, completing the gas circulation process. The multi-stage humidity control device 1 regulates the humidity of the input gas, the gas heater 2 regulates the gas temperature, and the multi-stage temperature and humidity control feeding device 3 regulates the temperature and humidity of the tobacco. The variable-speed fan 4 provides power for the circulating gas that regulates the temperature and humidity of the tobacco and regulates the conveying speed of the gas within the circulation system. The gas drying device 5 has a function of absorbing water vapor in the circulating gas, and the gas purifying device 6 has a function of purifying impurities in the circulating gas.

[0043] like Figure 2 As shown, the multi-stage humidity control device 1 includes a housing (in order to show the internal structure, Figure 2 As an example, the housing is not shown in FIG. Figure 2 As shown, the multi-stage humidity control device 1 includes a housing, a primary humidification component, a secondary humidification component, and a tertiary humidification component arranged from bottom to top. A sealing cover plate 1-4 is provided between adjacent humidification components. The sealing cover plate 1-4 is sealed to the housing, so that the primary humidification component, the secondary humidification component, and the tertiary humidification component respectively form a sealed space (i.e., a primary humidification chamber 1-17, a secondary humidification chamber 1-15, and a tertiary humidification chamber 1-11). A moisture inlet pipe 1-5 is provided between two adjacent humidification components. The multi-stage humidity control device 1 also includes an inlet pipe 1-1, an outlet pipe 1-12, a vertical straight pipe 1-13, a straight-through valve 1-18, and a bottom straight-through pipe 1-19.

[0044] The primary humidification components include a primary air inlet valve 1-2, a primary spiral mesh tube 1-3, a primary humidification chamber 1-17, and a primary air outlet valve 1-16. The air inlet pipe 1-1 is connected to the primary air inlet valve 1-2 and a bottom straight pipe 1-19. The horizontal bottom straight pipe 1-19 is equipped with a straight-through valve 1-18. The bottom straight pipe 1-19 is connected to a vertical straight pipe 1-13, which in turn is connected to the air outlet pipe 1-12. The outlet of the primary air inlet valve 1-2 is connected to the primary spiral mesh tube 1-3, and circulating gas enters the primary spiral mesh tube 1-3 through the primary air inlet valve 1-2. The primary spiral mesh tube 1-3 is spiral-shaped and has multiple mesh holes. Distilled water is placed at the bottom of the primary humidification chamber 1-17, and a dry space exists between its top and the sealing cover plate 1-4. The lower portion of the primary spiral mesh tube 1-3 is immersed in distilled water. When the primary air inlet valve 1-2 is opened, the circulating gas is released into the primary humidification chamber 1-17 through the mesh of the primary spiral mesh tube 1-3. It mixes with the distilled water inside the primary humidification chamber 1-17 to increase its humidity, and then moves upward into the water-free space of the primary humidification chamber 1-17. The air inlet of the primary air outlet valve 1-16 is connected to the second air outlet on the upper end of the outer shell of the primary humidification chamber 1-17. The air outlet of the primary air outlet valve 1-16 is also connected to the vertical straight pipe 1-13. If the humidity of the circulating gas meets the requirements after passing through the primary humidification component, the gas in the primary humidification chamber 1-17 enters the vertical straight pipe 1-13 through the air outlet of the primary air outlet valve 1-16, and then enters the gas heater 2 through the air outlet pipe 1-12.

[0045] The structure and principles of the secondary and tertiary humidification components are identical to those of the primary humidification component. The secondary humidification component includes a secondary air inlet valve 1-6, a secondary spiral mesh tube 1-7, a secondary humidification chamber 1-15, and a secondary air outlet valve 1-14. The moisture inlet pipe 1-5 between the primary and secondary humidification components is equipped with a secondary air inlet valve 1-6. The moisture inlet pipe 1-5 is positioned between the first air outlet of the outer shell of the primary humidification chamber 1-17 and the lower end of the secondary spiral mesh tube 1-7. When the secondary air inlet valve 1-6 is open, humidified gas within the primary humidification chamber 1-17 can enter the secondary spiral mesh tube 1-7, further increasing the humidity.

[0046] The tertiary humidification component includes a tertiary inlet valve 1-8, a tertiary spiral mesh tube 1-9, a tertiary humidification chamber 1-11, and a tertiary outlet valve 1-10. The tertiary inlet valve 1-8 is located on the moisture inlet pipe 1-5 between the secondary and tertiary humidification components. The moisture inlet pipe 1-5 is positioned between the first outlet of the housing of the secondary humidification chamber 1-15 and the tertiary spiral mesh tube 1-9. When the tertiary inlet valve 1-8 is open, the humidified gas inside the secondary humidification chamber 1-15 can enter the tertiary spiral mesh tube 1-9, further increasing the humidity.

[0047] Clean gas enters the multi-stage humidity control device 1 through the air inlet pipe 1-1. If the humidity of the tobacco in the multi-stage temperature and humidity control feeding device 3 exceeds the standard, the first-stage air inlet valve 1-2 is closed, the through valve 1-18 is opened, and the clean gas flows directly through the bottom through pipe 1-19 and the vertical through pipe 1-13 to the air outlet pipe 1-12 and enters the gas heater 2. If the humidity of the tobacco needs to be adjusted, the first-level air inlet valve 1-2 is opened and the straight-through valve 1-18 is closed, and the circulating gas enters the first-level spiral mesh tube 1-3 and is released into the first-level humidification chamber 1-17 through the mesh, mixed with the distilled water in the first-level humidification chamber 1-17 to increase the humidity of the circulating gas, and moves upward to the water-free space of the first-level humidification chamber 1-17; if the humidity of the gas after passing through the first-level humidification component meets the requirements, the second-level air inlet valve 1-6 is closed and the first-level air outlet valve 1-16 is opened, and the gas cannot enter the second-level humidification component, enters the vertical straight-through pipe 1-13 through the first-level air outlet valve 1-16 and enters the gas heater 2 through the air outlet pipe 1-12; if the humidity of the gas after passing through the first-level humidification component does not meet the requirements, the second-level air inlet valve 1-6 is opened and the first-level air outlet valve 1-16 is closed, and the circulating gas enters the second-level humidification component through the moisture inlet pipe 1-5 between the first-level humidification component and the second-level humidification component to further increase the humidity. The humidity increase method is the same as that of the first-level humidification component. Similarly, if the humidity of the gas after passing through the secondary humidification unit meets the requirements, the tertiary inlet valve 1-8 is closed and the secondary outlet valve 1-14 is opened, preventing the gas from entering the tertiary humidification unit. Instead, the gas enters the vertical straight-through pipe 1-13 through the secondary outlet valve 1-14 and then enters the gas heater 2 through the outlet pipe 1-12. If the humidity of the gas after passing through the secondary humidification unit does not meet the requirements, the tertiary inlet valve 1-8 is opened and the secondary outlet valve 1-14 is closed, allowing the circulating gas to enter the tertiary humidification unit through the moisture inlet pipe 1-5 between the secondary and tertiary humidification units to further increase the humidity. The humidity increase method is the same as that of the primary humidification unit. If the humidity of the circulating gas is still insufficient, the speed of the circulating gas can be adjusted by the variable-speed fan 4 to accelerate the humidity increase efficiency of the tobacco.

[0048] like Figure 3As shown, the multi-stage temperature and humidity control feeding device 3 includes a fully enclosed outer housing 3-8 and a tobacco conveying unit 3-2 enclosed within the outer housing 3-8. The outer housing 3-8 is made of a strong sealing material and provides a closed space for the tobacco conveying unit 3-2, ensuring that the tobacco maintains standard temperature and humidity. The outer housing 3-8 is provided with a feeding unit air inlet 3-1, a sealed tobacco outlet 3-3, a feeding unit air outlet 3-4, and a tobacco distribution port 3-7. The tobacco conveying unit 3-2 includes an inclined mesh tobacco conveyor belt 3-2-3. The upper end of the mesh tobacco conveyor belt 3-2-3 serves as the tobacco outlet 3-3. The tobacco outlet 3-3 is surrounded by sealing rings and flanges, allowing for bolted and sealed connection to the next stage of production equipment. The feeding unit air outlet 3-4, located near the upper end of the mesh tobacco conveyor belt 3-2-3, is used to discharge gases after they have impacted the tobacco. The lower end of the mesh tobacco conveyor belt 3-2-3 serves as the tobacco feed port. A tobacco distribution port 3-7 is located above the feed port for distributing the tobacco. The feeder air inlet 3-1 is located near the feed port. A tobacco humidity sensor array 3-5 and an infrared temperature sensor array 3-6 are located on the inner wall of the outer cover 3-8.

[0049] The circulating gas output by the gas heater 2 enters the multi-speed temperature and humidity adjustment feeding device 3 through the air inlet 3-1 of the feeding device. The gas obtained under the action of the tobacco temperature and humidity adjustment component 3-2-2 of the tobacco conveying part 3-2 acts on the tobacco on the conveyor belt, and regulates the temperature and humidity of the tobacco, so that the tobacco output from the multi-speed temperature and humidity adjustment feeding device 3 meets the requirements; at the same time, the tobacco humidity detection sensor array 3-5 and the infrared temperature measurement sensor array 3-6 monitor the temperature and humidity of the tobacco in real time, and adjust the temperature and humidity of the circulating gas input into the multi-speed temperature and humidity adjustment feeding device 3.

[0050] Preferably, the tobacco conveying component 3-2 is also provided with a tobacco output height adjustment component and a pulley preload adjustment component. The tobacco output height adjustment component adjusts the output end height of the conveyor belt according to the docking requirements of the next link, and the pulley preload adjustment component is used to adjust the preload of the mesh tobacco conveyor belt 3-2-3 to prevent slipping.

[0051] Specifically, if Figure 3 As shown, the tobacco conveying component 3-2 includes a conveyor belt assembly, a tobacco temperature and humidity adjustment assembly 3-2-2, a tobacco output height adjustment assembly and a pulley preload adjustment assembly.

[0052] The conveyor belt assembly includes a driving wheel 3-2-1, a mesh tobacco conveyor belt 3-2-3, a micro breathable mesh array 3-2-4, a driven wheel 3-2-5, a feeder base 3-2-13, a driven wheel positioning seat 3-2-12, a driving wheel positioning seat 3-2-18, a gear outer shaft end 3-2-8, a gear positioning seat 3-2-28, a speed encoder 3-2-29, and a transmission motor 3-2-17.

[0053] The feeder base 3-2-13 is the horizontal bottom structure of the tobacco conveying component 3-2 and is placed on a horizontal surface. The driven pulley locating seat 3-2-12 is a metal mounting plate bolted to the feeder base 3-2-13. The driving pulley locating seat 3-2-18 is a metal mounting plate, the bottom of which is fixedly connected to the feeder base 3-2-13 by bolts. There are four gear locating seats 3-2-28, which are symmetrically arranged on the outer shaft ends 3-2-8 of the gears of the driving pulley 3-2-1 and the driven pulley 3-2-5. The driving pulley 3-2-1 is a pulley with excellent transmission performance and precise speed regulation. It is fixed to the gear locating seats 3-2-28 at both ends through the center shaft by means of an overfit bearing. The transmission motor 3-2-17 is a controllable speed-regulating motor. It is fixedly connected to the outer gear shaft 3-2-8 on one side of the driving wheel 3-2-1 via a coupling. The transmission motor 3-2-17 itself is bolted to the feeder base 3-2-13. The driven wheel 3-2-5 is fixed to the gear positioning seat 3-2-28 at both ends via a central shaft. The driven wheel 3-2-5 is meshed and tightened with the mesh tobacco conveyor belt 3-2-3 and rotates with the driving wheel 3-2-1. The mesh tobacco conveyor belt 3-2-3 is a toothed pulley that meshes and secures with the driving pulley 3-2-1 and the driven pulley 3-2-5. It features a micro-permeable mesh array 3-2-4, consisting of multiple rows of mesh holes evenly arranged in a specific sequence across its upper surface. The tobacco temperature and humidity control assembly 3-2-2 provides air that flows upward through the mesh holes, regulating the temperature and humidity of the tobacco on the mesh tobacco conveyor belt 3-2-3 in real time. The outer gear shaft ends 3-2-8 extend from both sides of the driving pulley 3-2-1 and the driven pulley 3-2-5 for mounting and securing. A speed encoder 3-2-29 is bolted to the outer gear shaft end 3-2-8 of the driving pulley. By monitoring the real-time rotational speed of the driving pulley 3-2-5, it can determine the conveying speed of the belt.

[0054] The tobacco temperature and humidity control assembly 3-2-2 includes two symmetrically arranged upper main conduits. Each upper main conduit comprises a primary upper main conduit 3-2-2-19, a secondary upper main conduit 3-2-2-18, and a tertiary upper main conduit 3-2-2-15 (see description below), connected sequentially from the driving pulley to the driven pulley. At least one end of the upper main conduit is provided with an axially extendable end 3-2-7, and at least one end is provided with an articulated transmission plate 3-2-30, enabling synchronized pitching motion of the tobacco temperature and humidity control assembly 3-2-2 and the mesh tobacco conveyor belt 3-2-3.

[0055] As one embodiment, one end of the upper main conduit is provided with an axial telescopic end 3-2-7, and the other end is provided with a hinged transmission plate 3-2-30. As another embodiment, the same end of the upper main conduit is provided with an axial telescopic end 3-2-7 and a hinged transmission plate 3-2-30. As yet another embodiment, both ends of the upper main conduit are provided with an axial telescopic end 3-2-7 and a hinged transmission plate 3-2-30.

[0056] The axially telescopic end 3-2-7 is an axially telescopic sleeve structure, and the hinged rotating plate 3-2-30 is provided with a hinge hole. Taking the example of the upper end main pipe 3-2-2-15 of the upper end main pipe, which is provided with both the axially telescopic end 3-2-7 and the hinged transmission plate 3-2-30 at the end, the outer tube of the axially telescopic end 3-2-7 is fastened to the end of the upper end main pipe 3-2-2-15 by bolts, and the inner tube is connected to the first end of the hinged rotating plate 3-2-30 by bolts. The hinge hole of the hinged rotating plate 3-2-30 is hinged to the outer shaft end 3-2-8 of the gear of the driven wheel 3-2-5.

[0057] The tobacco temperature and humidity regulating component 3-2-2 can use a multi-level method to adjust the temperature and humidity of the gas in real time, so as to adjust the temperature and humidity of the tobacco in real time and ensure that the tobacco meets the process requirements.

[0058] like Figure 5As shown, the tobacco temperature and humidity adjustment component 3-2-2 mainly includes a gas input pipe 3-2-2-1, a gas buffer zone 3-2-2-2, a temperature sensor 3-2-2-3, a bottom longitudinal gas main pipe 3-2-2-4, a bottom longitudinal gas secondary pipe 3-2-2-5, a first-level vertical pipe 3-2-2-6, a first-level vertical pipe gas speed regulating valve 3-2-2-7, a first-level vertical hose telescopic end 3-2-2-8, a second-level vertical pipe 3-2-2-9, a second-level vertical pipe gas speed regulating valve 3-2-2-10, a second-level vertical hose telescopic end 3-2-2-11, a third-level vertical pipe 3-2-2-12, and a third-level vertical pipe gas speed regulating valve 3-2-2-13. 2-2-13, third-level vertical hose telescopic end 3-2-2-14, third-level upper main duct 3-2-2-15, third-level transverse gas duct array 3-2-2-16, third-level vertical gas duct array 3-2-2-17, second-level upper main duct 3-2-2-18, first-level upper main duct 3-2-2-19, second-level transverse gas duct array 3-2-2-20, second-level vertical gas duct array 3-2-2-21, temperature regulating thermal wire 3-2-2-22, first-level vertical gas duct array 3-2-2-23, first-level transverse gas duct array 3-2-2-24, bottom transverse gas secondary duct 3-2-2-26 and other structures.

[0059] The gas input pipe 3-2-2-1 is the gas input interface, and its other end is connected to the gas buffer zone 3-2-2-2. The gas buffer zone 3-2-2-2 is a gas storage chamber that prevents sudden high-pressure gas from appearing at the outlet during the temperature and humidity adjustment process, which could damage the tobacco. The temperature sensor 3-2-2-3 is installed inside the bottom longitudinal main gas pipe 3-2-2-4 to monitor the temperature and humidity of the gas. The bottom longitudinal main gas pipe 3-2-2-4 is the bottom gas main pipe and is connected to the bottom longitudinal sub-gas pipes 3-2-2-5 on both sides through the bottom transverse sub-gas pipe 3-2-2-26. The bottom transverse sub-gas pipe 3-2-2-26 is symmetrically equipped with bottom longitudinal sub-gas pipes, vertical pipe assemblies, upper main pipes, and gas pipe arrays on both sides. The vertical pipe assembly and upper main pipe assembly on each side are equipped with the same number of vertical pipes and upper main pipes. Each bottom longitudinal secondary gas duct connects to the vertical duct on the same side. Each vertical duct is equipped with a vertical duct gas speed regulating valve. The upper end of each vertical duct connects to the corresponding upper main duct via a vertical hose extension. A gas duct array is located between each set of symmetrical upper main ducts. The gas duct array comprises a transverse gas duct array and a vertical gas duct array. The bottom end of the vertical gas duct array connects to the transverse gas duct array, and the vertical gas ducts of the vertical gas duct array face the mesh tobacco conveyor belt.

[0060] Specifically, if Figure 5As shown, the bottom longitudinal gas secondary duct 3-2-2-5 is connected to the first-level vertical duct 3-2-2-6, the second-level vertical duct 3-2-2-9, and the third-level vertical duct 3-2-2-12 to introduce the gas into the vertical pipeline; the first-level vertical duct 3-2-2-6, the second-level vertical duct 3-2-2-9, and the third-level vertical duct 3-2-2-12 are fixedly connected to the first-level vertical duct gas speed regulating valve 3-2-2-7, the second-level vertical duct gas speed regulating valve 3-2-2-10, and the third-level vertical duct gas speed regulating valve 3-2-2-13 respectively to adjust the opening and closing of the pipeline and the flow rate. The upper ends of the first-level vertical duct gas speed regulating valve 3-2-2-7, the second-level vertical duct gas speed regulating valve 3-2-2-10 and the third-level vertical duct gas speed regulating valve 3-2-2-13 are connected with the first-level vertical hose telescopic end 3-2-2-8, the second-level vertical hose telescopic end 3-2-2-11 and the third-level vertical hose telescopic end 3-2-2-14. When the tobacco output height of the mesh tobacco conveyor belt is adjusted, the first-level vertical hose telescopic end 3-2-2-8, the second-level vertical hose telescopic end 3-2-2-11 and the third-level vertical hose telescopic end 3-2-2-14 ensure that the tobacco temperature and humidity adjustment components can move synchronously to compensate for vertical and lateral displacements. The first-stage vertical hose expansion end 3-2-2-8, the second-stage vertical hose expansion end 3-2-2-11, and the third-stage vertical hose expansion end 3-2-2-14 are securely connected to the first-stage upper main conduit 3-2-2-19, the second-stage upper main conduit 3-2-2-18, and the third-stage upper main conduit 3-2-2-15, respectively, to direct gas into the upper main conduits of each stage. The first-stage upper main conduit 3-2-2-19, the second-stage upper main conduit 3-2-2-18, and the third-stage upper main conduit 3-2-2-15 are blocked by flanges and secured with bolts. The ends of the first-level horizontal gas duct array 3-2-2-24, the second-level horizontal gas duct array 3-2-2-20, and the third-level horizontal gas duct array 3-2-2-16 are connected to the first-level upper main duct 3-2-2-19, the second-level upper main duct 3-2-2-18, and the third-level upper main duct 3-2-2-15, respectively. The first-level vertical gas duct array 3-2-2-23, the second-level vertical gas duct array 3-2-2-21, and the third-level vertical gas duct array 3-2-2-17 serve as outlets for releasing gases of a certain temperature and humidity. Their bottoms are connected to the first-level horizontal gas duct array 3-2-2-24, the second-level horizontal gas duct array 3-2-2-20, and the third-level horizontal gas duct array 3-2-2-16, respectively. The temperature regulating heat conducting wire 3-2-2-22 is fixed by bolts between the transverse gas ducts of the first-level transverse gas duct array 3-2-2-24, the second-level transverse gas duct array 3-2-2-20 and the third-level transverse gas duct array 3-2-2-16. When the humidity of the tobacco is high, the temperature regulating heat conducting wire 3-2-2-22 can cooperate with the circulating gas of a certain temperature and humidity to regulate the humidity of the tobacco.

[0061] The circulating gas enters the gas input pipe 3-2-2-1 and is transmitted to the first-level vertical duct 3-2-2-6, the second-level vertical duct 3-2-2-9, and the third-level vertical duct 3-2-2-12 through the bottom horizontal gas sub-duct 3-2-2-26 and the bottom longitudinal gas sub-duct 3-2-2-5. According to the temperature and humidity of the tobacco in each level area, the opening and closing conditions and speed of the first-level vertical duct gas speed regulating valve 3-2-2-7, the second-level vertical duct gas speed regulating valve 3-2-2-10, and the third-level vertical duct gas speed regulating valve 3-2-2-13 are adjusted respectively, thereby adjusting the gas flow rate inside the upper main ducts and the horizontal gas duct array, and controlling the flow rate of the gas at the outlet of the vertical gas duct array, realizing graded regulation of the temperature and humidity of the tobacco, and efficient regulation.

[0062] As an example, six tobacco moisture detection sensor arrays 3-5 are symmetrically distributed across the primary transverse gas duct array 3-2-2-24, the secondary transverse gas duct array 3-2-2-20, and the tertiary transverse gas duct array 3-2-2-16 to measure tobacco moisture levels in different areas. Infrared temperature sensor arrays 3-6 are located directly above the primary transverse gas duct array 3-2-2-24, the secondary transverse gas duct array 3-2-2-20, and the tertiary transverse gas duct array 3-2-2-16 to monitor tobacco temperature in different areas.

[0063] The pulley preload adjustment assembly includes an L-shaped positioning seat 3-2-14, a force sensor 3-2-6, a front threaded sleeve 3-2-15, a front linear bearing 3-2-16, a longitudinal displacement adjustment rod 3-2-21, a coupling 3-2-22, a preload adjustment motor 3-2-23, a transverse fixing rod 3-2-24, a tail linear bearing 3-2-25, a longitudinal guide optical axis 3-2-26, an adapter seat 3-2-27, a linear guide rail 3-2-19, and a linear slider 3-2-20.

[0064] Two force sensors are bolted symmetrically to the ends of the driven pulley locating seat 3-2-12. They monitor the pulley's preload and prevent slippage caused by reduced preload during prolonged operation. The upper ends of the two driving pulley locating seats 3-2-18 are bolted to the linear guide rail 3-2-19. The upper end of the linear guide rail 3-2-19 is slidably connected to the linear slider 3-2-20. The upper end of the adapter 3-2-27 is bolted to the gear locating seat 3-2-28, while the lower end is bolted to the linear slider 3-2-20. The center hole of the adapter 3-2-27 houses the tail linear bearing 3-2-25. The transverse fixing rod 3-2-24 has flanges at both ends and is bolted to the inner side of the adapter 3-2-27 on both sides. This ensures that the driving pulley moves synchronously in the longitudinal direction during preload adjustment, driven by the linear slider 3-2-20 and the linear guide rail 3-2-19.

[0065] The bottom of the L-shaped locating seat 3-2-14 is bolted to the driven pulley locating seat 3-2-12. The sides are bolted to the front threaded sleeve 3-2-15 and the front linear bearing 3-2-16. The front threaded sleeve 3-2-15 has an internally threaded through-hole structure, the end of which is bolted to the side of the L-shaped locating seat 3-2-14. The internally threaded through-hole is fixedly secured to the front threaded portion of the longitudinal displacement adjustment rod 3-2-21, which functions to adjust the pulley preload. The rear end (the end closest to the driving pulley) of the longitudinal displacement adjustment rod 3-2-21 is a smooth axis structure, while the front end (the end closest to the driven pulley) is a threaded structure. The rear end is fixedly connected to the preload adjustment motor 3-2-23 via a coupling 3-2-22. The smooth axis portion of the rear end is fixedly secured to the rear linear bearing 3-2-25 mounted on one of the adapters 3-2-27, allowing for longitudinal movement. The front threaded portion is threadedly secured to the front threaded sleeve 3-2-15. The coupling is a standard part, which is used to fix the preload adjustment motor 3-2-23 and the longitudinal displacement adjustment rod 3-2-21 with bolts. The preload adjustment motor 3-2-23 is fixedly connected to the feeder base 3-2-13 with bolts, and has the function of controlling and adjusting the preload of the pulley.

[0066] The front linear bearing 3-2-16 is fixed to the side of the L-shaped positioning seat 3-2-14. There is a matching hole in the middle. The matching hole is connected with the front clearance of the longitudinal guide optical axis 3-2-26, which has linear motion freedom. The tail end of the longitudinal guide optical axis 3-2-26 is fixed with the tail linear bearing 3-2-25 of another adapter seat, which has longitudinal motion freedom.

[0067] When the preload adjustment motor 3-2-23 rotates, the front end of the longitudinal displacement adjustment rod 3-2-21 rotates, and produces a longitudinal displacement movement with the front end threaded sleeve 3-2-15. The linear slider 3-2-20 moves back and forth (i.e. longitudinally) under the guidance of the linear slide rail 3-2-19. At the same time, the longitudinal guide optical axis 3-2-26 moves back and forth relative to the adapter seat, thereby adjusting the preload force of the pulley structure. At the same time, the preload force of the pulley can be measured in real time by the force sensor 3-2-6 to avoid slipping of the pulley after long-term operation.

[0068] The tobacco delivery height adjustment assembly includes a hydraulic push rod upper connecting support 3-2-9, a hydraulic push rod 3-2-10, and a hydraulic push rod lower connecting support 3-2-11. Two hydraulic push rods 3-2-10 are symmetrically arranged on either side of the driven wheel 3-2-5. The lower end of the hydraulic push rod upper connecting support 3-2-9 is pinned to the hydraulic push rod 3-2-10, and its upper end is bolted to the gear locating support 3-2-28 of the driven wheel 3-2-5. The upper end of the hydraulic push rod lower connecting support 3-2-11 is pinned to the hydraulic push rod 3-2-10, and its lower end is a flange surface bolted to the driven wheel locating support 3-2-12. By controlling the synchronous raising and lowering of the two hydraulic push rods 3-2-10, the height of the driven wheel 3-2-5, and thus the tobacco delivery height of the mesh tobacco conveyor belt 3-2-3, can be adjusted.

[0069] Since the upper main duct of the tobacco temperature and humidity adjustment component 3-2-2 has an axial telescopic end 3-2-7 and an articulated transmission plate 3-2-30, the tobacco temperature and humidity adjustment component 3-2-2 has an axial telescopic function and a rotation function relative to the outer shaft end 3-2-8 of the gear, which can compensate for the longitudinal displacement and height change during the preload adjustment and height adjustment process, so as to realize the function of synchronous movement of the tobacco temperature and humidity adjustment component 3-2-2 and the mesh tobacco conveyor belt 3-2-3 during the height adjustment and preload adjustment process.

[0070] This application has the following beneficial effects:

[0071] 1. The present application proposes a fully enclosed feeding method with adjustable tobacco temperature and humidity control and adjustable conveyor belt pitch angle. A variable-speed fan can be used to provide power to circulate the gas, and moisture in the gas can be removed by a gas drying device. Impurities in the gas can be removed by a gas purification device. At the same time, the temperature and humidity of the gas entering the multi-speed temperature and humidity adjustment feeding device 3 are quantitatively adjusted through feedback from a multi-speed humidity adjustment device, a gas heater, and a temperature and humidity sensor. The temperature and humidity of the tobacco are regulated by a tobacco temperature and humidity adjustment component to ensure the quality of the tobacco and reduce the impact of the production environment on the quality of the tobacco.

[0072] 2. The multi-stage humidity control device proposed in this application is equipped with a multi-stage humidification chamber, which can control the air inlet valve and air outlet valve at each stage according to the temperature and humidity requirements of the tobacco, and adjust the humidification and circulation of the gas in and out in stages.

[0073] 3. This application proposes a multi-stage temperature and humidity adjustment feeding device to provide a fully enclosed feeding system with tobacco cut temperature and humidity monitoring and control functions, and real-time graded control of tobacco cut temperature and humidity to ensure tobacco production quality. At the same time, it provides a conveyor belt with adjustable pitch angle, which can automatically control the feeding height according to the needs of the next production link, and has good versatility.

[0074] 4. The multi-speed temperature and humidity adjustment feeding device of the present application can monitor and control the pulley preload in real time to avoid the dangerous situation of the pulley loosening and slipping due to long-term operation.

[0075] 5. The tobacco temperature and humidity adjustment component of the present application includes evenly distributed routes of primary and secondary air pipes to ensure uniform air intake at all levels of the air pipes. At the same time, it is divided into three levels of vertical gas duct array gas outlets, which cooperate with the gas speed regulating valves of the vertical ducts at each level to control the gas speed respectively. It can cooperate with the tobacco humidity detection sensor array and the infrared temperature sensor array to adjust the temperature and humidity of the tobacco in the three areas. The adjustment method is flexible and the control accuracy is high, which effectively ensures the temperature and humidity of the tobacco during the feeding process and improves the transportation quality of the tobacco. This structure also has a temperature-regulating thermal wire structure, which can assist in reducing the humidity of the tobacco quickly and efficiently.

[0076] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A tobacco feeding system, characterized in that: It includes a multi-speed humidity control device, a gas heater, a multi-speed temperature and humidity control feeding device, a variable speed fan, a gas drying device and a gas purification device connected in a gas pipeline loop; The multi-stage temperature and humidity regulating feeding device comprises a fully enclosed outer cover and a tobacco conveying component enclosed in the outer cover, the tobacco conveying component comprises a mesh tobacco conveyor belt, and the outer cover is provided with a feeding device air inlet, a sealed tobacco output port, a feeding device air outlet, and a tobacco distribution port; The tobacco conveying component also includes a tobacco temperature and humidity adjustment component, which includes a bottom longitudinal main gas conduit, a bottom transverse secondary gas conduit, and bottom longitudinal secondary gas conduits symmetrically arranged on both sides of the bottom transverse secondary gas conduit, a vertical conduit assembly, an upper main conduit assembly, and a gas conduit array; The bottom longitudinal gas main conduit is connected to the bottom longitudinal gas secondary conduits on both sides through the bottom transverse gas secondary conduits; The vertical conduit assembly and the upper main conduit assembly on each side are provided with the same number of vertical conduits and upper main conduits; each of the bottom longitudinal gas secondary conduits is respectively connected to the vertical conduit on the same side, each of the vertical conduits is provided with a vertical conduit gas speed regulating valve, and the upper end of each vertical conduit is respectively connected to the corresponding upper main conduit through the telescopic end of the vertical hose; A gas conduit array is provided between each set of symmetrical upper main conduits, the gas conduit array comprising a transverse gas conduit array and a vertical gas conduit array, the bottom ends of the vertical gas conduits of the vertical gas conduit array being connected to the corresponding transverse gas conduits of the transverse gas conduit array, and the vertical gas conduits facing the meshed tobacco conveyor belt; The multi-speed humidity control device includes a housing, a vertical straight pipe, an air outlet pipe, and a plurality of humidifying components arranged from bottom to top, a sealing cover plate is provided between adjacent humidifying components, the sealing cover plate is sealedly connected to the housing, so that each humidifying component forms a humidifying chamber, the air outlet of the humidifying component is connected to the vertical straight pipe, and the vertical straight pipe is connected to the air outlet pipe; The variable speed fan provides power for the circulating gas; The multi-stage humidity control device adjusts the humidity of the gas in stages according to the temperature and humidity requirements of the tobacco, specifically comprising: the multi-stage humidity control device is provided with a multi-stage humidification chamber, and the air inlet valve and the air outlet valve of each stage of the humidification chamber are controlled according to the temperature and humidity requirements of the tobacco, thereby adjusting the humidification and circulation of the gas in and out in stages; The gas heater adjusts the temperature of the gas according to the temperature and humidity requirements of the tobacco; The gas drying device removes water vapor inside the gas; The gas purification device removes solid particle impurities inside the gas.

2. The tobacco feeding system according to claim 1, characterized in that: The mesh tobacco conveyor belt is inclined.

3. The tobacco feeding system according to claim 1, characterized in that: The humidification component includes an air inlet valve, a spiral mesh tube, a humidification chamber and an air outlet valve; The outlet of the air inlet valve is connected to the spiral mesh tube, and the circulating gas enters the spiral mesh tube through the air inlet valve; The spiral mesh tube is spiral-shaped and has a plurality of mesh holes. Distilled water is provided at the bottom of the humidification chamber, a water-free space is provided between the top of the humidification chamber and the sealing cover plate, and the lower portion of the spiral mesh tube is immersed in the distilled water; The air inlet of the air outlet valve is connected to the second air outlet on the outer shell of the upper end of the humidification cabin, and the air outlet of the air outlet valve is communicated with the vertical straight-through pipe.

4. The tobacco feeding system according to claim 3, characterized in that: A moisture inlet pipe is provided between the first air outlet of the shell of the humidifying chamber of the next-stage humidifying component and the lower end of the spiral mesh tube of the previous-stage humidifying component, and the air inlet valve of the previous-stage humidifying component is provided on the moisture inlet pipe.

5. The tobacco feeding system according to claim 1, characterized in that: Temperature regulating heat conducting wires are provided between the transverse gas conduits.

6. The tobacco feeding system according to claim 1, characterized in that: At least one end of the upper main conduit is provided with an axial telescopic end, and at least one end of the upper main conduit is provided with a hinged transmission plate hinged to the outer shaft end of the gear of the driving wheel or the driven wheel of the mesh tobacco conveyor belt.

7. The tobacco feeding system according to claim 1, characterized in that: The tobacco conveying component further includes a feeder base and a pulley preload adjustment assembly, wherein the pulley preload adjustment assembly includes an adapter, a linear slider, a linear slide rail, a longitudinal displacement adjustment rod, and a preload adjustment motor; The gear positioning seat of the driving wheel of the mesh tobacco conveyor belt is fixedly connected to the linear slider through the adapter seat; The upper end of the driving wheel positioning seat is fixed with the linear slide rail, and the linear slide rail is slidably connected to the linear slider; The longitudinal displacement adjustment rod is rotatably provided on the adapter seat, the first end of the longitudinal displacement adjustment rod is fixedly connected to the preload adjustment motor, and the second end of the longitudinal displacement adjustment rod is fixedly connected to the feeder base.

8. The tobacco feeding system according to claim 7, characterized in that: The tobacco conveying component further includes a tobacco output height adjustment component, which includes a hydraulic push rod, an upper connecting support for the hydraulic push rod, and a lower connecting support for the hydraulic push rod; The hydraulic push rod is hinged to the lower end of the hydraulic push rod upper connecting support, and the upper end of the hydraulic push rod upper connecting support is fixedly connected to the gear positioning seat of the driven wheel; The hydraulic push rod is hinged to the upper end of the hydraulic push rod lower connecting support, and the lower end of the hydraulic push rod lower connecting support is fixedly connected to the driven wheel positioning seat.

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