Tobacco shred two-way conveying mechanism and tobacco shred dryer

Abstract

The utility model relates to the technical field of tobacco shred processing, and discloses a two-way tobacco shred conveying mechanism and a tobacco shred dryer. Wherein the two-way tobacco shred conveying mechanism comprises a blanking device, a feeding cover, a frame body assembly and a two-way conveying belt, the blanking device is used for conveying tobacco shreds, and a blanking hole is formed in the lower portion of the blanking device; the feeding cover is located below the blanking device, a feeding hole is formed in the upper portion of the feeding cover, and the feeding hole is connected to the blanking device through a hose; the feeding cover is located above the frame assembly, the feeding cover is detachably connected to the frame assembly, and a containing cavity is formed between the feeding cover and the frame assembly; the two-way conveying belt extends in the first direction and is arranged in the containing cavity. Tobacco shreds conveyed by the discharging device can be conveyed to the two-way conveying belt through the hose and the feeding hole. A first discharging hole and a second discharging hole are formed below the two ends, in the first direction, of the containing cavity, and the first discharging hole and the second discharging hole are located in the two ends of the two-way conveying belt. According to the utility model, the phenomenon of material scattering is avoided, and overhaul and maintenance are convenient.

Description

A bidirectional tobacco conveying mechanism and a tobacco drying machine Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a bidirectional tobacco conveying mechanism and a tobacco drying machine. Background Technology

[0002] Airflow drying machines are commonly used equipment in tobacco processing. After the tobacco shreds are dried and expanded in the airflow drying machine, they enter the air separation channel through the vibrating trough, are conveyed to the feeder, and then to the bidirectional feeding conveyor, before entering the tobacco blending and flavoring stage. The bidirectional feeding conveyor has two functions: 1. When the material is normal, it conveys the material in the forward direction; 2. When the airflow drying machine malfunctions, such as when the moisture content of the tobacco is unqualified, or when there is an open flame or sparks in the tobacco, it reverses the direction and ejects the material from the feeding port.

[0003] In existing technologies, the feeder directly conveys the tobacco shreds onto the conveyor belt, which easily generates dust and pollutes the processing environment.

[0004] Therefore, there is an urgent need for a bidirectional tobacco conveying mechanism and a tobacco drying machine to solve the aforementioned problems. Summary of the Invention

[0005] Based on the above, the purpose of this utility model is to provide a bidirectional tobacco conveying mechanism and a tobacco drying machine that will not cause spillage, will not pollute the working environment, and will facilitate the inspection and maintenance of the bidirectional conveyor belt by the staff, thereby improving work efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, a bidirectional tobacco conveying mechanism is provided, comprising:

[0008] A feeder for conveying tobacco shreds, wherein a feed hole is provided at the bottom of the feeder;

[0009] A feed hood is located below the discharge device, and a feed hole is provided above the feed hood. The feed hole is connected to the discharge device through the flexible hose.

[0010] A frame assembly, wherein the feed hood is located above the frame assembly and is detachably connected to the frame assembly, and a receiving cavity is formed between the feed hood and the frame assembly;

[0011] A bidirectional conveyor belt extends along a first direction and is disposed within the receiving cavity. The tobacco shreds conveyed by the feeder can be transported to the bidirectional conveyor belt via the hose and the feed hole. A first discharge hole and a second discharge hole are disposed below both ends of the receiving cavity along the first direction, and the first discharge hole and the second discharge hole are located at both ends of the bidirectional conveyor belt.

[0012] As a preferred technical solution of a bidirectional tobacco conveying mechanism, the frame assembly includes a main frame, a feeding hood, and a discharging hood. The feeding hood and the discharging hood are detachably connected to both ends of the main frame along the first direction, and the feeding hood is detachably connected to both ends of the feeding hood and the discharging hood along the first direction.

[0013] The discharge hood is provided with a first cavity, and a first discharge hole is provided below the first cavity. The discharge hood is provided with a second cavity, and a second discharge hole is provided below the second cavity.

[0014] As a preferred technical solution of a bidirectional tobacco conveying mechanism, the width of the feed hood along the second direction is smaller than the width of the main frame along the second direction, so that two first gaps for the air blowing pipe to extend into are formed between the feed hood and the main frame. The two first gaps are symmetrically arranged on both sides of the feed hood along the second direction.

[0015] As a preferred technical solution for a bidirectional tobacco conveying mechanism, the bidirectional tobacco conveying mechanism further includes two flexible sealing strips, which are used to seal the two first gaps.

[0016] As a preferred technical solution of a bidirectional tobacco conveying mechanism, the bidirectional tobacco conveying mechanism further includes two pressure strips, each of which corresponds to one of the two flexible sealing strips. The pressure strips are detachably connected to the main frame so that one side of the flexible sealing strip is pressed between the pressure strip and the main frame, and the other side of the flexible sealing strip fills the first gap.

[0017] As a preferred technical solution for a bidirectional tobacco conveying mechanism, the flexible sealing strip is folded into a U-shape, the pressure strip is detachably connected to the main frame, the pressure strip and the main frame can press the open side of the U-shape tightly, and the side of the U-shape away from the opening fills the first gap.

[0018] As a preferred technical solution for a bidirectional tobacco conveying mechanism, a first dust removal pipe for connecting to a dust removal device is provided above the feeding hood, and a second dust removal pipe for connecting to a dust removal device is provided above the discharge hood.

[0019] As a preferred technical solution for a bidirectional tobacco conveying mechanism, the volume of the first cavity is larger than the volume of the second cavity.

[0020] As a preferred technical solution for a bidirectional tobacco conveying mechanism, the flexible tube is made of stainless steel, rubber, or plastic.

[0021] On the other hand, a tobacco drying machine is provided, including the bidirectional tobacco conveying mechanism described in any of the above embodiments.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model provides a bidirectional tobacco conveying mechanism and a tobacco drying machine. A receiving cavity is formed between the feeding hood and the frame assembly. The tobacco conveyed by the feeder can be transported to the bidirectional conveyor belt via a flexible hose and a feeding hole. Dust generated from the tobacco is retained within the receiving cavity, preventing spillage and environmental pollution. When maintenance of the bidirectional tobacco conveying mechanism is required, the feeding hood only needs to be removed from the frame assembly. Since the flexible hose above the feeding hood does not impede its movement, the feeding hood can be lifted, facilitating inspection and maintenance of the bidirectional conveyor belt and improving work efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 is a structural schematic diagram of the bidirectional tobacco conveying mechanism provided in a specific embodiment of this utility model;

[0026] Figure 2 is an exploded view of the bidirectional tobacco conveying mechanism provided in a specific embodiment of this utility model;

[0027] Figure 3 is a structural schematic diagram of the discharge hood provided in a specific embodiment of this utility model;

[0028] Figure 4 is a cross-sectional view of the bidirectional tobacco conveying mechanism provided in a specific embodiment of this utility model.

[0029] The markings in the image are as follows:

[0030] 1. Feeder; 2. Feed hood; 21. First flange; 22. Second flange; 3. Frame assembly; 31. Main frame; 32. Feeding hood; 321. First cavity; 322. First discharge hole; 323. First dust removal pipeline; 33. Discharge hood; 331. Second cavity; 332. Second discharge hole; 333. Second dust removal pipeline; 4. Bidirectional conveyor belt; 5. Flexible sealing strip; 6. Pressure strip; 7. Hose. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] As shown in Figures 1 and 2, this embodiment provides a tobacco drying machine, including a bidirectional tobacco conveying mechanism. The bidirectional tobacco conveying mechanism includes a feeder 1, a feeding hood 2, a frame assembly 3, and a bidirectional conveyor belt 4. The feeder 1 is used to convey tobacco, and a feeding hole is provided below the feeder 1. The feeding hood 2 is located below the feeder 1, and a feeding hole is provided above the feeding hood 2. The feeding hole is connected to the feeder 1 through a hose 7. The feeding hood 2 is located above the frame assembly 3, and the feeding hood 2 is detachably connected to the frame assembly 3. A receiving cavity is formed between the feeding hood 2 and the frame assembly 3. The bidirectional conveyor belt 4 extends along a first direction and is disposed in the receiving cavity. The tobacco conveyed by the feeder 1 can be conveyed to the bidirectional conveyor belt 4 through the hose 7 and the feeding hole. A first discharge hole 322 and a second discharge hole 332 are provided below both ends of the receiving cavity along the first direction. The first discharge hole 322 and the second discharge hole 332 are located at both ends of the bidirectional conveyor belt 4.

[0036] The feeding hood 2 and the frame assembly 3 form a receiving cavity. The tobacco shreds conveyed by the feeder 1 can be transported to the bidirectional conveyor belt 4 through the hose 7 and the feed hole. At this time, the dust generated by the tobacco shreds is retained in the receiving cavity, and there is no spillage, thus avoiding pollution of the working environment. When maintenance is required on the bidirectional tobacco conveying mechanism, it is only necessary to remove the feeding hood 2 from the frame assembly 3. Since the hose 7 is above the feeding hood 2, it does not affect the movement of the feeding hood 2, so the feeding hood 2 can be lifted, making it convenient for workers to inspect and maintain the bidirectional conveyor belt 4, thus improving work efficiency.

[0037] It should be noted that the bidirectional conveyor belt 4 uses a motor to achieve forward and reverse conveying, which is existing technology and will not be described in detail here. In this embodiment, the flexible hose 7 is made of stainless steel, rubber, or plastic. In this embodiment, the first direction is X, and the second direction is Y. Both the first and second directions are located in the horizontal plane and are perpendicular to each other.

[0038] Further, as shown in Figures 1-3, the frame assembly 3 includes a main frame 31, a feeding hood 32, and a discharge hood 33. The feeding hood 32 and the discharge hood 33 are detachably connected to both ends of the main frame 31 along the first direction, and the feeding hood 2 is detachably connected to both ends of the feeding hood 32 and the discharge hood 33 along the first direction, respectively. The feeding hood 32 is provided with a first cavity 321, and a first discharge hole 322 is provided below the first cavity 321. The discharge hood 33 is provided with a second cavity 331, and a second discharge hole 332 is provided below the second cavity 331. When the bidirectional tobacco conveying mechanism is working normally, the bidirectional conveyor belt 4 conveys tobacco in the forward direction so that the tobacco enters the downstream equipment through the second discharge port, and the downstream equipment can perform processes such as blending and flavoring. When the bidirectional tobacco conveying mechanism malfunctions, the bidirectional conveyor belt 4 conveys tobacco in the reverse direction so that the tobacco falls through the first discharge port, completing the feeding action. When the bidirectional tobacco conveying mechanism needs maintenance, remove the feed hood 2, place wooden blocks between the feed hood 2 and the main frame 31, and then carry out the maintenance work. After the maintenance is completed, remove the wooden blocks and install the feed hood 2.

[0039] When the bidirectional tobacco conveying mechanism changes from forward to reverse conveying, the bidirectional conveyor belt 4 will briefly stop, accumulating more tobacco. The material flow rate of the feeding hood 32 is greater than that of the discharge hood 33. When more tobacco is conveyed to the feeding hood 32, it can easily become clogged. To solve this problem, in this embodiment, the volume of the first cavity 321 is larger than the volume of the second cavity 331, so that the feeding hood 32 can convey a larger amount of tobacco and prevent clogging.

[0040] In this embodiment, the top surface of the feeding hood 32 is flush with the top surface of the feeding hood 2. The feeding hood 2, near the feeding hood 32, has a first flange 21 extending vertically on both sides along the second direction. The first flange 21 is connected to the side wall of the feeding hood 32 by screws. The top surface of the discharging hood 33 is flush with the top surface of the main frame. The feeding hood 2, near the discharging hood 33, has a second flange 22 extending horizontally. The second flange 22 overlaps the top surface of the discharging hood 33 and is connected to the top surface of the discharging hood 33 by screws. This allows the feeding hood 2 to be detachably connected to the feeding hood 32 and the discharging hood 33 at both ends along the first direction. During maintenance, the screws connecting the feeding hood 2 to the feeding hood 32 and the discharging hood 33 can be removed, and the upper flexible hose 7 can be removed to allow the feeding hood 2 to be removed entirely for inspection.

[0041] In the prior art, the receiving cavity requires frequent purging. In this embodiment, the width of the feed hood 2 along the second direction is smaller than the width of the main frame 31 along the second direction, so that two first gaps are formed between the feed hood 2 and the main frame 31 for the insertion of the air blowing pipe. The two first gaps are symmetrically arranged on both sides of the feed hood 2 along the second direction. The air blowing pipe can extend into the receiving cavity through the first gaps to achieve purging of the receiving cavity.

[0042] In this embodiment, the bidirectional tobacco conveying mechanism further includes two flexible sealing strips 5, which are used to seal the two first gaps. During the insertion of the blowing pipe, the flexible sealing strips 5 deform, allowing the blowing pipe to extend into the receiving cavity. After the blowing pipe retracts, the flexible sealing strips 5 return to their original shape, completing the seal of the first gaps and preventing dust leakage. In this embodiment, the flexible sealing strips 5 are made of elastic thermoplastic polyurethane material.

[0043] In this embodiment, the bidirectional tobacco conveying mechanism further includes two pressure strips 6, each corresponding to one of the two flexible sealing strips 5. The pressure strips 6 are detachably connected to the main frame 31, so that one side of the flexible sealing strip 5 is pressed between the pressure strip 6 and the main frame 31, thus fixing the flexible sealing strip 5. The other side of the flexible sealing strip 5 fills the first gap, thus sealing the first gap. In this embodiment, the pressure strip 6 can be connected to the third flange at the top of the main frame 31 using screws.

[0044] Preferably, as shown in Figure 4, the flexible sealing strip 5 is folded into a U-shape, and the pressure strip 6 is detachably connected to the main frame 31. The pressure strip 6 and the main frame 31 can press the open side of the U-shape tightly, and the side of the U-shape away from the open side fills the first gap. The end of the flexible sealing strip 5 that fills the first gap has a double-layer arc structure. Relying on the elasticity of the flexible sealing strip 5, it can seal well, play a sealing role, prevent smoke and dust from being raised, and can completely seal after installation to prevent dust leakage.

[0045] Preferably, as shown in Figure 2, a first dust removal pipe 323 for connecting to a dust removal device is provided above the feeding hood 32, and a second dust removal pipe 333 for connecting to a dust removal device is provided above the discharge hood 33, in order to reduce the dust of tobacco shreds inside the feeding hood 32 and the discharge hood 33.

[0046] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A bidirectional tobacco conveying mechanism, characterized in that, include: A feeder (1) is used to convey tobacco shreds, and a feed hole is provided below the feeder (1); A feeding hood (2) is located below the feeder (1), and a feeding hole is provided above the feeding hood (2). The feeding hole is connected to the feeder (1) through a hose (7). A frame assembly (3) is formed between the feeding hood (2) and the frame assembly (3), and the feeding hood (2) is detachably connected to the frame assembly (3). A receiving cavity is formed between the feeding hood (2) and the frame assembly (3). A bidirectional conveyor belt (4) extends along a first direction and is disposed in the receiving cavity. The tobacco conveyed by the feeder (1) can be conveyed to the bidirectional conveyor belt (4) through the hose (7) and the feeding hole. A first discharge hole (322) and a second discharge hole (332) are provided below both ends of the receiving cavity along the first direction. The first discharge hole (322) and the second discharge hole (332) are located at both ends of the bidirectional conveyor belt (4).

2. The bidirectional tobacco conveying mechanism according to claim 1, characterized in that, The frame assembly (3) includes a main frame (31), a feeding hood (32), and a discharge hood (33). The feeding hood (32) and the discharge hood (33) are detachably connected to both ends of the main frame (31) along the first direction. The feeding hood (2) is detachably connected to both ends of the feeding hood (32) and the discharge hood (33) along the first direction. The feeding hood (32) is provided with a first cavity (321), and a first discharge hole (322) is provided below the first cavity (321). The discharge hood (33) is provided with a second cavity (331), and a second discharge hole (332) is provided below the second cavity (331).

3. The bidirectional tobacco conveying mechanism according to claim 2, characterized in that, The width of the feed hood (2) along the second direction is smaller than the width of the main frame (31) along the second direction, so that two first gaps for inserting the air blowing pipe are formed between the feed hood (2) and the main frame (31), and the two first gaps are symmetrically arranged on both sides of the feed hood (2) along the second direction.

4. The bidirectional tobacco conveying mechanism according to claim 3, characterized in that, The bidirectional tobacco conveying mechanism also includes two flexible sealing strips (5), which are used to seal the two first gaps.

5. The bidirectional tobacco conveying mechanism according to claim 4, characterized in that, The bidirectional tobacco conveying mechanism also includes two pressure strips (6), which correspond one-to-one with the two flexible sealing strips (5). The pressure strips (6) are detachably connected to the main frame (31) so that one side of the flexible sealing strip (5) is pressed between the pressure strip (6) and the main frame (31), and the other side of the flexible sealing strip (5) fills the first gap.

6. The bidirectional tobacco conveying mechanism according to claim 5, characterized in that, The flexible sealing strip (5) is folded into a U-shape, and the pressure strip (6) is detachably connected to the main frame (31). The pressure strip (6) and the main frame (31) can press the opening side of the U-shape together, and the side of the U-shape away from the opening fills the first gap.

7. The bidirectional tobacco conveying mechanism according to claim 2, characterized in that, The material feeding hood (32) is provided with a first dust removal pipe (323) for connecting to the dust removal equipment, and the material discharge hood (33) is provided with a second dust removal pipe (333) for connecting to the dust removal equipment.

8. The bidirectional tobacco conveying mechanism according to claim 2, characterized in that, The volume of the first cavity (321) is greater than the volume of the second cavity (331).

9. The bidirectional tobacco conveying mechanism according to any one of claims 1-8, characterized in that, The hose (7) is made of stainless steel, rubber or plastic.

10. A wire drying machine, characterized in that, Includes the bidirectional tobacco conveying mechanism as described in any one of claims 1-9.

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