A low-damage tobacco leaf collecting device by air floating

Abstract

The application discloses a low-damage tobacco collecting device of air floatation type, which comprises a tobacco collecting box and an air floatation conveying module arranged in the tobacco collecting box. An inlet is arranged on the tobacco collecting box. The air floatation conveying module comprises a flow guide plate arranged in the tobacco collecting box and a gas supply module for supplying gas to the inner cavity of the flow guide plate. The upper end of the flow guide plate is located below the inlet, and the lower end extends downward along a direction away from the inlet. The flow guide plate is provided with gas holes arranged in a matrix. The gas supply module is arranged on a support at the back side of the flow guide plate, and the gas supply module is in communication with the inner cavity of the flow guide plate. The low-damage tobacco collecting device of air floatation type can realize efficient and lossless conveying and collecting of tobacco.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tobacco processing, and particularly relates to a low-damage air floating type tobacco collecting device. BACKGROUND

[0002] In the conveying and collecting process of tobacco, the traditional mechanical conveying method often causes physical damage to the tobacco, affecting the quality of the tobacco. The traditional tobacco conveying device has the following technical pain points: on the one hand, mechanical damage, the friction and roller pressure of the belt conveyor can cause the tobacco breakage rate to be as high as 8%-12%; on the other hand, stacking and extrusion, when multiple layers of tobacco are stacked, pressure marks are generated, thereby affecting the subsequent sorting accuracy. SUMMARY

[0003] In order to overcome the deficiencies in the prior art, the application provides a low-damage air floating type tobacco collecting device, which can realize efficient and non-destructive transmission and collection of tobacco.

[0004] The technical scheme for solving the above technical problems is as follows:

[0005] A low-damage air floating type tobacco collecting device, comprising a tobacco collecting box and an air floating conveying module arranged in the tobacco collecting box, wherein a feeding port is arranged on the tobacco collecting box; the air floating conveying module comprises a flow guide plate arranged in the tobacco collecting box and a gas supply module for supplying gas to the inner cavity of the flow guide plate, wherein the upper end of the flow guide plate is located at the feeding port, and the lower end extends in a direction away from the feeding port; a plurality of gas holes arranged in a matrix are arranged on the flow guide plate; the gas supply module is arranged on the bracket at the back side of the flow guide plate, and the gas supply module is in communication with the inner cavity of the flow guide plate.

[0006] Preferably, a plurality of segmented cavities are arranged in the flow guide plate, and each segmented cavity is in communication with the gas supply module through an independent gas supply pipeline.

[0007] Preferably, a plurality of jet pressure zones are arranged on the flow guide plate, and the gas pressure of the gas holes in each jet pressure zone is the same; the plurality of jet pressure zones and the plurality of segmented cavities are in one-to-one correspondence and in communication with each other.

[0008] Preferably, the diameter of each gas hole is 10-20mm; the pitch of each gas hole is 40mm*15mm, and each gas hole is arranged at an acute angle of 30°.

[0009] Preferably, the upper end of the flow guide plate is provided with an inclined pressure test plate, and a pressure sensor is arranged on the pressure test plate.

[0010] Preferably, the lower end of the flow guide plate is an arc-shaped curved surface.

[0011] Preferably, the air flotation conveying module further includes a lifting module for driving the guide plate to rise and fall, and an angle adjustment module for adjusting the tilt angle of the guide plate.

[0012] Preferably, the air supply module is a high-pressure air pump, and the outlet of the high-pressure air pump is connected to the inlet of the distributor; the multiple outlets of the distributor are respectively connected to each segmented cavity in the guide plate through independent air supply pipes.

[0013] Preferably, the inner wall of the tobacco leaf collection box is covered with an elastic buffer layer, and the bottom is provided with a honeycomb-shaped sponge base plate.

[0014] Preferably, the side wall of the tobacco collection box is provided with a transparent observation window.

[0015] Preferably, the tobacco leaf collection box is equipped with a traction frame that is connected to the tobacco leaf harvester.

[0016] Preferably, the upper side of the tobacco leaf collection box is provided with a box cover, which is detachably connected to the box body of the tobacco leaf collection box.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. The low-damage design in the air-floating low-damage tobacco leaf collection device of the present invention can reduce the physical contact of tobacco leaves, thereby reducing the breakage rate of tobacco leaf blades and solving the problem of physical damage to tobacco leaves caused by traditional mechanical conveying.

[0019] 2. The height and guiding angle of the guide plate in the air-floating low-damage tobacco leaf collection device of the present invention are adjustable, so as to adapt to different tobacco leaf types and working conditions.

[0020] 3. The air-float tobacco leaf low-damage collection device of the present invention optimizes the air-float technology and mechanical structure to achieve low-damage operation of tobacco leaves from transportation to collection, and is applicable to the tobacco processing field. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the tobacco harvester of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the air-floating tobacco leaf low-damage collection device of the present invention.

[0023] Figure 3 This is a front view of the air-floating tobacco leaf low-damage collection device of the present invention.

[0024] Figure 4 This is a side view of the air-floating tobacco leaf low-damage collection device of the present invention.

[0025] Figure 5 This is a schematic diagram of the baffle plate.

[0026] Figure 6 This is a schematic diagram illustrating the principle of the air-floating low-damage tobacco leaf collection device of the present invention for collecting tobacco leaves. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0028] Example 1

[0029] See Figures 2-6 The air-floating low-damage tobacco leaf collection device of the present invention includes a tobacco leaf collection box 105 and an air-floating conveying module disposed within the tobacco leaf collection box 105. The tobacco leaf collection box 105 is provided with an inlet 107. The air-floating conveying module includes a guide plate 106 disposed within the tobacco leaf collection box 105 and an air supply module for supplying air to the inner cavity of the guide plate 106. The upper end of the guide plate 106 is located at the inlet 107, and the lower end extends obliquely away from the inlet 107. The guide plate 106 is provided with a matrix of air holes (i.e., an air hole array). The air supply module is disposed on a support on the back side of the guide plate 106 and communicates with the inner cavity of the guide plate 106. The air supply module forms a uniform air film on the surface of the guide plate 106 to promote the suspended transport of tobacco leaves entering from the inlet 107, thereby reducing frictional damage.

[0030] See Figures 2-6 The guide plate 106 is provided with multiple segmented cavities, each of which is connected to the air supply module through an independent air supply pipe 104. In other words, the guide plate 106 is provided with multiple jet pressure zones, and the air pressure ejected from the air holes in each jet pressure zone is the same. With the above configuration, the air film pressure generated by each jet pressure zone in the guide plate 106 can be adjusted to transport the tobacco leaves entering from the feed inlet 107 to any position at the bottom of the tobacco leaf collection box 105.

[0031] In this embodiment, the diameter of each air hole in the guide plate 106 is 10-20mm, and the hole spacing of each air hole is 40mm×15mm.

[0032] See Figures 2-6 The air pores are arranged at an acute angle of 30°. By adopting a flow guiding structure at a specific angle, the tobacco leaves can be accurately collected in a directional manner, thereby ensuring the integrity of the tobacco leaves and improving sorting efficiency.

[0033] In this embodiment, the guide vane 106 employs a four-stage jet pressure zone to accommodate the suspension requirements of tobacco leaves of different weights. Additionally, this embodiment incorporates self-compensating air film control, with a high-precision pressure sensor positioned at the top of the guide vane 106 to provide real-time feedback and adjust the air pump output.

[0034] See Figures 2-6 The upper end of the guide plate 106 is provided with an inclined pressure test plate 108. The pressure test plate 108 is provided with a pressure sensor for real-time monitoring of the pressure applied by the tobacco leaves to the pressure test plate 108 and the air film pressure, and the detected pressure value is uploaded to the controller. The controller automatically adjusts the airflow intensity through the air pump flow valve to ensure that tobacco leaves of different weights can be stably suspended.

[0035] See Figures 2-6 The lower end of the guide plate 106 is an arc-shaped surface. The arc-shaped surface can disperse the concentrated impact when the tobacco leaves fall and guide the tobacco leaves into the tobacco collection box 105 at a specific angle, thereby avoiding direct collision and thus avoiding local accumulation that could lead to tobacco leaf breakage.

[0036] See Figures 2-6 The air flotation conveying module also includes a lifting module for driving the guide plate 106 to rise and fall, and an angle adjustment module for adjusting the tilt angle of the guide plate 106. The lifting module can drive the guide plate 106 to rise and fall to accommodate tobacco leaves of different thicknesses, thereby avoiding the stacking and compression of tobacco leaves. Similarly, the angle adjustment module is used to adjust the angle of the guide plate 106, which can also accommodate tobacco leaves of different thicknesses, thereby avoiding the stacking and compression of tobacco leaves.

[0037] See Figures 2-6 The inner wall of the tobacco leaf collection box 105 is covered with an elastic buffer layer (such as a silicone corrugated pad), and a honeycomb sponge bottom plate is provided at the bottom to absorb the impact force generated when the tobacco leaves fall; a transparent observation window is provided on the side wall of the box to facilitate real-time monitoring of the tobacco leaf collection status.

[0038] See Figures 2-6 The air supply module is a high-pressure air pump 102, and the air outlet of the high-pressure air pump 102 is connected to the inlet of the distributor 103; the multiple outlets of the distributor 103 are respectively connected to the segmented cavities in the guide plate 106 through independent air supply pipes 104.

[0039] See Figures 2-6 The tobacco collection box 105 is provided with a traction frame 101 connected to the tobacco harvester, and the tobacco collection device 1 of the present invention is installed in the tobacco harvester through the traction frame 101; for this purpose, the bottom of the tobacco collection box 105 is also provided with wheels.

[0040] See Figures 2-6 The tobacco leaf collection box 105 is provided with a box cover on its upper side. The box cover is detachably connected to the box body of the tobacco leaf collection box 105. The box cover can be opened through the detachable structure, and then the collected tobacco leaves inside the box can be taken out.

[0041] See Figures 2-6 The working principle of the air-floating low-damage tobacco leaf collection device of the present invention is as follows:

[0042] First, the tobacco harvester enters the contiguous tobacco field, and the tobacco plants pass through the middle of the gantry in the tobacco harvester. The double-row wave-shaped harvesting blades in the tobacco harvester simulate manual picking, peeling the mature tobacco leaves from the bottom up in layers from the stalks. The harvested tobacco leaves fall onto the horizontal belt in the double-sided Z-shaped frameless conveyor belt to complete the tobacco leaf collection.

[0043] Subsequently, the high-pressure air pump 102 is started, which supplies air to each segmented cavity in the guide plate 106; each segmented cavity sprays a uniform airflow onto the surface of the guide plate 106 through its internal air hole array (the air holes are arranged in an acute angle direction), thereby forming a stable air film on the surface of the guide plate 106.

[0044] Since a pressure test plate 108 is provided on the upper end of the guide plate 106, and a pressure sensor is provided on the pressure test plate 108, the pressure value of the air film is monitored in real time by the pressure sensor. According to the feedback data of the pressure sensor, the controller automatically adjusts the airflow intensity through the air pump flow valve, thereby ensuring that the air film can stably support tobacco leaves of different weights and reduce the direct friction between the tobacco leaves and the guide plate 106.

[0045] When the Z-shaped frameless conveyor belt lifts the tobacco leaves to the feed inlet 107 in the tobacco leaf collection box 105, the pressure is tested by the pressure sensor in the pressure test plate on the top of the guide plate 106. The tobacco leaves entering from the feed inlet 107 fall naturally onto the guide plate 106. Supported by the air film, the tobacco leaves are suspended above the guide plate 106, and their posture is adjusted in the air before being transported to the designated position.

[0046] When the tobacco leaves are conveyed by the Z-shaped frameless conveyor belt to the pressure test plate 108 above the guide plate 106, the uniform airflow, combined with the guiding angle of the guide plate 106, can control the falling trajectory and posture of the tobacco leaves; wherein, the specific angle design of the guide plate 106 can ensure that the tobacco leaves fall in a predetermined direction, thereby avoiding the tobacco leaves from deflecting or getting stuck during the conveying process.

[0047] The tobacco leaves eventually fall into the tobacco leaf collection box 105 with a buffer layer. The inner wall of the tobacco leaf collection box 105 is covered with an elastic buffer layer (such as a silicone corrugated pad), and the bottom is also equipped with a honeycomb sponge partition. These designs can absorb the impact force generated when the tobacco leaves fall in layers, thereby further reducing the damage to the tobacco leaves.

[0048] The tobacco leaf collection box 105 has a transparent observation window on its side wall, which allows operators to monitor the collection status of tobacco leaves in real time. If abnormal accumulation or damage to tobacco leaves is found, the collection parameters can be adjusted or manual intervention can be carried out in a timely manner.

[0049] Example 2

[0050] See Figure 1 The tobacco harvester of the present invention includes a tracked chassis 3, a frame 5 mounted on the tracked chassis 3, a tobacco harvesting device 4 mounted in the frame 5, an adjustment device 6 for adjusting the height or angle of the tobacco harvesting device 4, and a conveying device 2 for conveying the tobacco harvested by the tobacco harvesting device 4 to the tobacco collecting device 1.

[0051] In this embodiment, the conveying device 2, the tracked chassis 3, the tobacco harvesting device 4, the frame 5, and the adjusting device 6 are all implemented using existing structures.

[0052] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A flotation-type low-damage tobacco leaf collection device, characterized in that, The device includes a tobacco leaf collection box and an air flotation conveying module disposed within the tobacco leaf collection box. The tobacco leaf collection box is provided with a feed inlet. The air flotation conveying module includes a guide plate disposed within the tobacco leaf collection box and an air supply module for supplying air to the inner cavity of the guide plate. The upper end of the guide plate is located at the feed inlet, and the lower end extends obliquely away from the feed inlet. The guide plate is provided with air holes arranged in a matrix. The air supply module is disposed on a bracket on the back side of the guide plate and communicates with the inner cavity of the guide plate. The guide plate is provided with multiple segmented cavities, each segmented cavity is connected to the air supply module through an independent air supply pipe; the guide plate is provided with multiple jet pressure zones, and the air pressure ejected from the air holes in each jet pressure zone is the same; the multiple jet pressure zones correspond one-to-one with the multiple segmented cavities and are interconnected. The upper end of the guide plate is provided with an inclined pressure test plate, and a pressure sensor is provided on the pressure test plate.

2. The air-floating low-damage tobacco leaf collection device according to claim 1, characterized in that, The diameter of each pore is 10-20mm; the pore spacing is 40mm×15mm, and each pore is arranged at an acute angle of 30°.

3. The air-floating low-damage tobacco leaf collection device according to claim 2, characterized in that, The lower end of the guide plate is an arc-shaped curved surface.

4. The air-floating low-damage tobacco leaf collection device according to claim 3, characterized in that, The air flotation conveying module also includes a lifting module for driving the guide plate to rise and fall, and an angle adjustment module for adjusting the tilt angle of the guide plate.

5. The air-floating low-damage tobacco leaf collection device according to claim 4, characterized in that, The air supply module is a high-pressure air pump, and the outlet of the high-pressure air pump is connected to the inlet of the distributor; the multiple outlets of the distributor are respectively connected to the segmented cavities in the guide plate through independent air supply pipes.

6. The air-floating low-damage tobacco leaf collection device according to claim 1, characterized in that, The inner wall of the tobacco collection box is covered with an elastic buffer layer, and the bottom is provided with a honeycomb-shaped sponge base plate.

7. The air-floating low-damage tobacco leaf collection device according to claim 1, characterized in that, The tobacco collection box has a transparent observation window on its side wall.

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