Novel discharge cover for tobacco processing belt conveyor

Abstract

The utility model belongs to the tobacco processing technical field, concretely relates to a novel discharge cover of tobacco processing belt conveyor, including the discharge cover, the discharge cover bottom setting blanking hopper, the blanking hopper below setting the inclined closing face, the discharge cover top setting dust hood, dust hood top setting dust removal pipeline, the discharge cover front passes through the installation observation door of connecting hinge, the observation door both sides install observation door clamping strip, the discharge cover side wall corresponds observation door clamping strip and sets up observation door buckle, it is convenient to carry out the dredging treatment and belt conveyor maintenance when the material block.

Description

Technical Field

[0001] This utility model belongs to the field of tobacco processing technology, and in particular relates to a novel discharge cover for a tobacco processing belt conveyor. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0003] Currently, belt conveyors are commonly used in the tobacco processing industry. These devices are mainly used for conveying materials such as tobacco leaves, tobacco shreds, tobacco stems, and tobacco shreds during the tobacco processing steps. The main structure consists of a frame, belt, belt rollers, tensioning device, transmission device, belt brush, and discharge hood. The tobacco material is distributed on the belt of the belt conveyor, and the transmission device drives the belt to transport the tobacco material. At the same time, the bottom of the belt at the discharge end of the belt conveyor is equipped with a brush to clean the tobacco material adhering to the belt surface. The equipment connected to the discharge end of the belt conveyor usually includes the belt conveyor, storage tank distribution car, and feeding machine distribution car.

[0004] Currently, tobacco materials fall directly onto the collection device after being conveyed out of the conveyor, which presents the following technical problems: (1) The main structure of the belt conveyor discharge hood used by tobacco processing enterprises is a cover and an observation door. It has no function to treat smoke and dust, which leads to serious spillage of smoke and dust during the material conveying process. In addition, the discharge hood is a closed structure, so it cannot be repaired and cleaned when blockage occurs.

[0005] (2) Moreover, the tobacco material falls directly onto the receiving device after being sent out by the conveyor. During the falling process, there is no material buffer design, resulting in a high breakage rate of the tobacco material after falling. Utility Model Content

[0006] In order to solve the above problems, this utility model proposes a new type of discharge cover for a tobacco processing belt conveyor. This utility model aims to solve the technical problem of time-consuming material replacement for the new discharge cover of the tobacco processing belt conveyor.

[0007] According to some embodiments, the present invention adopts the following technical solution: This application discloses a novel discharge hood for a tobacco processing belt conveyor, comprising a discharge hood, a hopper at the bottom of the discharge hood, an inclined converging surface below the hopper, a dust removal hood at the top of the discharge hood, a dust removal pipe at the top of the dust removal hood, an observation door installed at the front of the discharge hood via a connecting hinge, observation door clips installed on both sides of the observation door, and observation door buckles provided on the sidewall of the discharge hood corresponding to the observation door clips.

[0008] A further configuration is provided, wherein an opening is provided on the front side of the discharge hood, and an observation door is installed on the front side of the discharge hood, the observation door having several perforations.

[0009] A further configuration is that the dust removal pipeline is equipped with a manual butterfly valve.

[0010] Further configured, the butterfly valve handle is provided with scale lines.

[0011] A further configuration is provided, wherein a buckle is fixedly installed at the bottom of the discharge hood, and a duckbill buckle is installed at the top of the discharge hopper.

[0012] Further configured, the observation door latch includes a connecting seat, one end of which is fixedly mounted with a Z-shaped connecting plate, and the end of the Z-shaped connecting plate has an elliptical groove.

[0013] A further configuration is provided, wherein a pin is provided through the connecting seat, and the observation door buckle is rotatably mounted on both sides of the discharge hood via the pin.

[0014] A further configuration is that the observation door retainer is welded to both sides of the observation door, and the width of the elliptical groove is greater than the diameter of the retainer.

[0015] A further configuration is that the dust removal pipe is installed through the top of the dust removal hood.

[0016] A further configuration is provided where the top of the dust collector hood is tapered.

[0017] The beneficial effects of this utility model are as follows: (1) The observation door can be flipped upwards and the observation door buckle can be flipped forward and downwards. The observation door clip can be put into the observation door buckle to fix the position of the observation door, so as to realize the fixed function after the observation door is opened, which is convenient for unblocking the material and maintaining the belt conveyor.

[0018] (2) The lower part of the discharge hood is a discharge hopper. The four sides of the discharge hopper are designed to be tapered, forming four inclined tapered surfaces. The tapered surfaces form an acute angle of 15° to 45° with the vertical surface, which realizes the buffering and accumulation of materials falling.

[0019] (3) This utility model can collect and treat the dust and smoke at the discharge end of the belt conveyor by fixing a discharge hood at the discharge end of the conveyor and connecting the top of the discharge hood to the dust removal system through a dust removal pipe. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the discharge hood structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the observation door of this utility model after it has been flipped over.

[0024] Figure 4 This is a schematic diagram of the structure of the duckbill hook and loop fastener of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Discharge hood; 2. Belt conveyor discharge end; 3. Dust removal pipe; 4. Dust removal hood; 5. Observation door; 6. Connecting hinge; 7. Drop hopper; 8. Duckbill buckle; 9. Observation door retaining strip; 10 Observation door latch; 101 Connecting seat; 102 Z-shaped connecting plate; 103 Elliptical groove; 104 Pin; 11 Inclined closing surface; 12 Manual butterfly valve; 13 Snap ring. Detailed implementation method: The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0027] Example 1 A novel discharge hood for a tobacco processing belt conveyor, with reference to Figure 1 and Figure 2 It includes a discharge hood 1, a discharge hopper 7 at the bottom of the discharge hood 1, an inclined closing surface 11 below the discharge hopper 7, a dust removal hood 4 at the top of the discharge hood 1, a dust removal pipe 3 at the top of the dust removal hood 4, an observation door 5 installed in front of the discharge hood 1 via a connecting hinge 6, observation door clips 9 installed on both sides of the observation door 5, and observation door buckles 10 set on the side wall of the discharge hood 1 corresponding to the observation door clips 9.

[0028] The discharge hood 1 has an opening on the front side, and an observation door 5 is installed on the front side of the discharge hood 1. The observation door 5 has several perforations to maintain a balance between dust removal negative pressure and visibility: the perforations on the observation door 5 allow a small amount of air to enter, which helps to maintain the stable negative pressure required by the dust removal system and optimize dust suction efficiency; at the same time, these perforations provide the possibility of quick visual inspection of the internal status (such as material flow, signs of blockage, dust conditions) without fully opening the observation door 5, which improves the convenience of daily monitoring and enhances ventilation: in non-maintenance conditions, the perforations provide a certain amount of natural ventilation, which helps to reduce the accumulation of humidity or temperature inside the hood.

[0029] A manual butterfly valve 12 is installed in the dust collection duct 3. The manual butterfly valve 12 allows the operator to flexibly adjust the airflow through the dust collection duct 3 according to the actual material conveying volume, dust generation volume, and the working status of the dust collection system. This helps to optimize dust collection efficiency by increasing the airflow when there is a lot of dust and avoid over-suction. When conveying light materials or at low speeds, the airflow can be reduced to prevent qualified materials from being sucked into the dust collection system and wasting them.

[0030] The butterfly valve handle is equipped with graduations, providing operators with intuitive and quantifiable indications of the airflow opening. This allows for more precise airflow adjustment and enables the recording and reproduction of optimal opening settings for different materials or operating conditions, ensuring consistent and stable dust removal performance and reducing human error.

[0031] A buckle 13 is fixedly installed at the bottom of the discharge hood 1, and a duckbill hook-and-loop fastener 8 is installed at the top of the discharge hopper 7. The connection between the duckbill hook-and-loop fastener 8 and the buckle 13 enables quick disassembly and installation of the discharge hopper 7 and the discharge hood 1. Since residual materials and dust easily accumulate inside the hopper, this greatly facilitates thorough cleaning, maintenance, or replacement of the inside of the discharge hopper 7, solving the problem of cumbersome and time-consuming disassembly and reassembly of traditional bolt connections, improving the efficiency of equipment hygiene maintenance, and reducing the risk of cross-contamination between batches of materials.

[0032] The observation door latch 10 includes a connecting seat 101, with a Z-shaped connecting plate 102 fixedly mounted at one end of the connecting seat 101. An elliptical groove 103 is formed at the end of the Z-shaped connecting plate 102. The design of the Z-shaped connecting plate 102 and the elliptical groove 103 constitutes a simple and effective lever locking mechanism. The Z-shaped structure provides an operating handle and the necessary travel, while the elliptical groove 103 allows for some adjustment margin when the observation door latch 9 is engaged, and can firmly hold the latch, preventing the observation door 5 from accidentally opening under equipment vibration or negative pressure, ensuring sealing and safety.

[0033] The connecting seat 101 is provided with a through pin 104. The observation door buckle 10 is rotatably mounted on both sides of the discharge hood 1 via the pin 104. The pin 104 connection allows the entire observation door buckle 10, especially the Z-shaped connecting plate 102, to rotate smoothly around the pin 104.

[0034] The observation door retaining strip 9 is welded to both sides of the observation door 5. The width of the elliptical groove 103 is greater than the diameter of the retaining strip, and slightly greater than the diameter of the retaining strip, allowing the retaining strip to slide easily and smoothly into or out of the elliptical groove 103, avoiding jamming caused by processing errors or deformation. At the same time, this gap design also allows the retaining strip to form reliable contact with the wall of the elliptical groove 103 in the locked state, providing sufficient friction or restraint to fix the observation door 5.

[0035] The dust collection duct 3 is installed at the top of the dust collection hood 4, directly at the highest point of the hood, conforming to the natural upward movement of dust, especially light dust. This ensures that the generated dust can be drawn into the dust collection duct 3 through the shortest and most direct path, reducing dust diffusion and settling within the hood and maximizing dust collection efficiency. The dust collector hood 4 features a tapered top opening with a truncated cone shape. This design effectively gathers rising airflow and dust, creating a "throat" effect that increases airflow velocity in the area. This significantly enhances the suction force of dust towards the inlet of the dust collection duct 3, improving dust collection efficiency and preventing dust from spreading or accumulating on the top of the hood. The tapered design also helps ensure a smoother and more orderly airflow towards the duct outlet, reducing eddies and turbulence, thereby minimizing the possibility of secondary dust re-entrainment and settling within the hood. The working principle is as follows: Reference Figure 4 Duckbill hook-and-loop fasteners 8 are installed below the observation door 5 and above the hopper 7. During normal production, the duckbill hook-and-loop fasteners 8 are locked to prevent tobacco material from spilling during conveying. When it is necessary to observe the conveying status of tobacco material at the discharge end 2 of the belt conveyor, the duckbill hook-and-loop fasteners 8 can be opened to flip the observation door 5. When the observation door 5 needs to be fixed after opening, the observation door 5 can be flipped upwards and the observation door latch 10 can be flipped downwards, as shown in the reference. Figure 3 The observation door 5 is secured by inserting the observation door clip 9 into the buckle, which facilitates the unblocking of materials and the daily maintenance of the belt conveyor.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A novel discharge hood for a tobacco processing belt conveyor, characterized in that, The device includes a discharge hood, a hopper at the bottom of the discharge hood, an inclined closing surface below the hopper, a dust removal hood at the top of the discharge hood, a dust removal pipe at the top of the dust removal hood, an observation door installed in front of the discharge hood via a connecting hinge, observation door clips installed on both sides of the observation door, and observation door buckles installed on the side wall of the discharge hood corresponding to the observation door clips.

2. The novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The discharge hood has an opening on the front side, and an observation door is installed on the front side of the discharge hood. The observation door has several perforations.

3. The novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The dust removal pipeline is equipped with a manual butterfly valve.

4. A novel discharge hood for a tobacco processing belt conveyor as described in claim 3, characterized in that, The handle of the manual butterfly valve is equipped with graduation lines.

5. A novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The bottom of the discharge hood is fixedly installed with a buckle, and the top of the discharge hopper is fitted with a corresponding hook and loop fastener.

6. A novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The observation door latch includes a connecting seat, one end of which is fixedly mounted with a Z-shaped connecting plate, and the end of the Z-shaped connecting plate has an elliptical groove.

7. A novel discharge hood for a tobacco processing belt conveyor as described in claim 6, characterized in that, The connecting seat is provided with a through pin, and the observation door buckle is rotatably installed on both sides of the discharge hood via the pin.

8. A novel discharge hood for a tobacco processing belt conveyor as described in claim 6, characterized in that, The observation door retainer is welded to both sides of the observation door, and the width of the elliptical groove is greater than the diameter of the retainer.

9. A novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The dust removal pipe runs through the top of the dust removal hood.

10. A novel discharge hood for a tobacco processing belt conveyor as described in claim 1, characterized in that, The dust collector cover has a tapered top.

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