Expanded tobacco shred processing nozzle convenient to clean

Abstract

The utility model relates to the technical field of expanded cut tobacco processing equipment, in particular to a convenient-to-clean expanded cut tobacco processing nozzle which comprises a spraying main channel, a slidable sliding sleeve is arranged on the outer side, a spraying cavity in the middle of the sliding sleeve is communicated with the spraying main channel, the top of the sliding sleeve is connected with a spraying plate through a connecting rod, and spraying holes are evenly distributed in the spraying plate. A dredging assembly is arranged in the sliding sleeve, and a cutting assembly is arranged in the spraying cavity. When the pressure in the injection cavity rises due to blockage of the injection hole, the sliding sleeve moves to trigger the cleaning action. The jet holes are dredged through the dredging knife rest, and the cutting blade cuts blockages in the jet cavity. And meanwhile, the impurities are collected and treated by utilizing a connecting pressure spring, an auxiliary spraying channel, an auxiliary spraying hole, a collecting hopper and a filtering separation net. The nozzle effectively solves the problems that a traditional nozzle is easy to block and difficult to clean, processing quality of expanded tobacco shreds is improved, and service life of the nozzle is prolonged.

Description

Technical Field

[0001] This application relates to the field of expanded tobacco processing equipment, and in particular to an easily cleanable expanded tobacco processing nozzle. Background Technology

[0002] In the production and processing of expanded tobacco, the nozzle plays a crucial role. It is responsible for precisely spraying various processing agents such as expanding agents and flavoring agents into the tobacco, thereby giving the tobacco specific physical properties and flavor, and having a decisive impact on the quality of the final tobacco product.

[0003] However, the currently used nozzles for processing expanded tobacco have revealed many problems that urgently need to be solved during actual operation. Because the sprayed treatment agent may contain some tiny particulate impurities, coupled with debris generated during tobacco processing, these substances easily accumulate and gather at the nozzle's injection orifice. Over time, the injection orifice becomes partially or even completely blocked, altering the spray flow rate of the treatment agent and preventing it from acting evenly and stably on the tobacco. This not only leads to inconsistent expansion of the expanded tobacco, affecting the uniformity of tobacco filling, but also causes uneven distribution of flavorings, severely damaging the consistency of the tobacco's taste and flavor, and greatly reducing product quality.

[0004] Traditional cleaning methods often require manual removal of the nozzles from the equipment. This process is not only time-consuming and labor-intensive, but also requires operators to have high professional skills to avoid damage to the equipment due to improper operation. In addition, frequent disassembly and installation of nozzles can cause mechanical wear on the nozzle connection parts, shorten the nozzle's service life, and increase equipment maintenance costs and the company's operational burden. Existing cleaning methods are difficult to thoroughly and effectively clean the spray chamber, which has long plagued the expanded tobacco production and processing industry.

[0005] To address this, an easy-to-clean expansion tobacco processing nozzle has been invented to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide an easy-to-clean nozzle for processing expanded tobacco, which solves the problems of easy clogging of the spray hole and cumbersome cleaning of existing nozzles during use, thereby improving the processing quality of expanded tobacco, extending the service life of the nozzle, and reducing equipment maintenance costs.

[0007] This application provides an easy-to-clean expanded tobacco processing nozzle, which adopts the following technical solution: it includes a main injection channel, wherein a slidable sliding sleeve is provided on the outer side of the main injection channel, an injection chamber communicating with the main injection channel is opened in the middle of the sliding sleeve, a connecting rod is provided on the top of the main injection channel, an injection plate is provided on the top of the connecting rod, a plurality of injection holes are provided on the injection plate evenly distributed along its circumference, a clearing component is provided inside the sliding sleeve to clear the injection holes, and a cutting component is provided inside the injection chamber to cut the blockage.

[0008] Optionally, the unblocking assembly includes several fixing rods, which are formed on the inner wall of the sliding sleeve and correspond one-to-one with the spray holes. Each fixing rod is provided with a unblocking blade holder that can be inserted into the spray hole, and the unblocking blade holder is composed of multiple unblocking blades.

[0009] Optionally, the cutting assembly includes a rotating turbine rotatably connected inside the main injection channel. Several connecting frames are arranged around the rotating turbine, and the connecting frames are located inside the injection chamber and have several cutting blades disposed thereon.

[0010] Optionally, the connecting rod is provided with a connecting spring, the sliding sleeve has an internal injection channel, the top of the sliding sleeve has several injection holes evenly distributed along its circumference, the bottom of the sliding sleeve is fixedly provided with a collection hopper communicating with the injection channel, a filter screen is provided between the collection hopper and the injection channel, when the sliding sleeve moves, the collection hopper can communicate with the injection chamber, when the injection hole is blocked, the pressure in the injection chamber increases, at which time the sliding sleeve moves.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. This utility model, by setting up a dredging component, can dredge the spray hole without disassembling the nozzle. The dredging blade holder on the fixed rod can be inserted into the spray hole, and multiple dredging blades can clean the blockage. The operation is simple and convenient, greatly improving the cleaning efficiency and reducing the equipment downtime caused by cleaning.

[0013] 2. The cutting component can cut the blockage in the spray chamber. The rotating turbine drives the cutting blade on the connecting frame to rotate, cutting larger blockages into smaller particles, which facilitates subsequent cleaning, effectively ensuring the smooth flow of the spray chamber and improving the working stability of the nozzle.

[0014] 3. The connection spring allows the sliding sleeve to move flexibly within a certain range, facilitating cleaning operations. The design of the injection sub-channel, injection sub-hole, and collection hopper enables the collection of impurities in the injection chamber as the sliding sleeve moves. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0016] Figure 2 This is a schematic diagram of the interior of the injection chamber of this device. Figure I ;

[0017] Figure 3 This is a cross-sectional schematic diagram of the overall structure of this device;

[0018] Figure 4 This is a schematic diagram of the interior of the injection chamber of this device. Figure II ;

[0019] Figure 5 For this device Figure 2 Enlarged view of A in the middle;

[0020] The components are as follows: 1. Main spray channel; 2. Sliding sleeve; 3. Spray chamber; 4. Connecting rod; 5. Spray plate; 6. Spray hole; 7. Unblocking component; 8. Cutting component; 9. Fixing rod; 10. Unblocking knife holder; 11. Unblocking blade; 12. Rotating turbine; 13. Connecting frame; 14. Cutting blade; 15. Connecting compression spring; 16. Secondary spray channel; 17. Secondary spray hole; 18. Collection hopper; 19. Filter screen. Detailed Implementation

[0021] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, 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 the present utility model.

[0022] Reference Figure 1 , Figure 3One embodiment shown is as follows: This tobacco processing nozzle mainly consists of a main injection channel 1, a sliding sleeve 2, a connecting rod 4, an injection plate 5, injection holes 6, a clearing component 7, and a cutting component 8. The main injection channel 1, as the main channel of the entire nozzle, provides the basic channel structure for the delivery of the processing agent. In this embodiment, it is an internally hollow tubular structure used to deliver processing agents such as expanding agents and flavoring agents. The sliding sleeve 2 is fitted onto the outside of the main injection channel 1, and the two are slidably connected. This slidable connection allows the sliding sleeve 2 to move along the axial direction of the main injection channel 1, providing a flexible basis for subsequent cleaning operations. The connecting rod 4 is located at the top of the main injection channel 1, with one end connected to the main injection channel 1 and the other end connected to the injection plate 5, connecting the main injection channel 1 and the injection plate. The components are firmly connected together. The connecting rod 4 serves as both a connector and a support. The spray plate 5 is located at the top of the connecting rod 4 and has several circumferentially distributed spray holes 6. The arrangement of these spray holes 6 ensures that the treatment agent can be sprayed evenly onto the tobacco. In this embodiment, the size and distribution density of the spray holes 6 are designed according to the actual treatment agent spraying requirements and tobacco processing requirements to ensure that the treatment agent can be sprayed onto the tobacco in a uniform manner, achieving effective treatment of the tobacco. The spray chamber 3 is located in the middle of the sliding sleeve 2 and communicates with the main spray channel 1. It is an important spatial area for the treatment agent during the spraying process. When the treatment agent is transported from the main spray channel 1, it enters the spray chamber 3 and is then sprayed out through the spray holes 6. The communication between the spray chamber 3 and the main spray channel 1 ensures the smooth transmission of the treatment agent, allowing it to flow along a predetermined path. The unblocking component 7 is located inside the sliding sleeve 2 and can unblock the spray holes 6. Its specific structure and arrangement are designed to facilitate cleaning of the spray hole 6 without disassembling the nozzle, thus avoiding the impact of the spraying effect of the treatment agent due to blockage of the spray hole 6. The cutting component 8 is set in the spray chamber 3 to cut the blockage. Its combination with the spray chamber 3 can effectively treat any blockages that may exist in the spray chamber 3, preventing the blockages from accumulating in the spray chamber 3 and affecting the normal flow of the treatment agent.

[0023] The implementation principle of the above embodiment is as follows: During the normal processing of expanded tobacco, the treatment agent flows in from the main injection channel 1, passes through the injection chamber 3, and is finally sprayed onto the tobacco through the injection holes 6 on the injection plate 5. When cleaning is required, the sliding sleeve 2 can trigger the action of the unblocking component 7 and the cutting component 8 to clean the blockages in the injection holes 6 and the injection chamber 3, thereby ensuring the smoothness of the injection.

[0024] Reference Figure 2 , Figure 5One embodiment shown is as follows: the unblocking assembly 7 consists of multiple fixed rods 9, an unblocking blade holder 10, and unblocking blades 11. The fixed rods 9 are fixed on the inner wall of the sliding sleeve 2 and correspond one-to-one with the spray holes 6. This means that each spray hole 6 is equipped with a corresponding fixed rod 9. In this embodiment, the unblocking blade holder 10 is fixedly installed on the fixed rods 9. When it is necessary to clean the spray hole 6, the sliding sleeve 2 moves and drives the unblocking blade holder 10 to move. The unblocking blade holder 10 can be accurately aligned and inserted into the spray hole 6. The unblocking blade holder 10 consists of multiple unblocking blades 11. These unblocking blades 11 can adopt different shapes and angles, such as sharp triangles or arcs, to adapt to different types of blockages.

[0025] The implementation principle of the above embodiment is as follows: When the sliding sleeve 2 moves, the unblocking blade holder 10 on the fixed rod 9 inserts into the spray hole 6. Since the unblocking blades 11 on the unblocking blade holder 10 have sharp edges, when they are inserted into the spray hole 6, they can scrape and cut up the blockage in the spray hole 6, clearing it and ensuring that the spray hole 6 is unobstructed. At the same time, the one-to-one correspondence between the fixed rod 9 and the unblocking blade holder 10 ensures that each spray hole 6 can be cleaned specifically, avoiding omissions and ensuring the uniformity of the entire nozzle spray.

[0026] Reference Figure 3 , Figure 4 One embodiment shown is as follows: the cutting assembly 8 mainly consists of a rotating turbine 12, a connecting frame 13, and cutting blades 14. The rotating turbine 12 is rotatably connected to the inside of the main injection channel 1 and is driven to rotate by the flow of fluid in the main injection channel 1. Several spiral blades are provided on its periphery, and the fluid passing through causes it to rotate. In this embodiment, the connecting frame 13 is fixed to the periphery of the rotating turbine 12 and is firmly connected to the rotating turbine 12. Several cutting blades 14 are provided on the connecting frame 13. These cutting blades 14 can be made of wear-resistant materials such as hard alloy. In this embodiment, their shape can be serrated to facilitate cutting and breaking up blockages in the injection chamber 3.

[0027] The implementation principle of the above embodiment is as follows: by rotating the turbine 12, the connecting frame 13 and the cutting blade 14 on it will rotate together. Since the cutting blade 14 has a sharp edge, it can cut the blockage in the spray chamber 3 during the rotation process, breaking the larger blockage into smaller particles, making it easier for the blockage to be processed or discharged by the subsequent cleaning structure, preventing large particles of blockage from affecting the normal operation of the spray chamber 3, and ensuring the smooth flow of the treatment agent.

[0028] Reference Figure 1 , Figure 3 , Figure 4One embodiment is shown: the connecting spring 15 on the connecting rod 4 is an elastic component, one end of which is connected to the connecting rod 4, and the other end can be fixedly connected to the sliding sleeve 2. In this embodiment, the connecting spring 15 provides an elastic force to keep the sliding sleeve 2 in its initial position under normal working conditions, and provides a restoring force when the sliding sleeve 2 slides, ensuring that the sliding sleeve 2 can be reset after the cleaning operation is completed. The spray sub-channel 16 is opened inside the sliding sleeve 2 and communicates with the spray sub-hole 17 and the collection hopper 18. The spray sub-hole 17 is distributed on the top of the sliding sleeve 2 and is evenly distributed along the circumference. Its function is to assist spraying or assist cleaning under certain circumstances. The collection hopper 18 is fixed at the bottom of the sliding sleeve 2 and is connected to the spray sub-channel 16. When the sliding sleeve 2 moves, it will communicate with the spray chamber 3 to collect impurities generated during the cleaning process. The filter screen 19 is set between the collection hopper 18 and the spray sub-channel 16. It can intercept larger impurity particles and prevent them from entering the spray sub-channel 16 or other components. During normal spraying, if the spray hole 6 is blocked, the flow of the treatment agent is hindered, which will cause the pressure in the spray chamber 3 to gradually increase. Since the injection chamber 3 is connected to the main injection channel 1, the pressure in the main injection channel 1 will also be transmitted to the injection chamber 3 due to the blockage of the injection hole 6. In this case, the increased pressure will exert a force on the sliding sleeve 2, causing the sliding sleeve 2 to move against the elastic force of the connecting spring 15. This pressure-driven movement mechanism of the sliding sleeve 2 realizes a self-feedback cleaning triggering mechanism, that is, when a blockage occurs, the system can automatically start the cleaning program without manual intervention.

[0029] The implementation principle of the above embodiment is as follows: In normal spraying operation, the treatment agent is sprayed through the main spraying channel 1 and the spraying hole 6. When the spraying hole 6 is blocked, the pressure in the spraying chamber 3 begins to rise. This pressure acts on the sliding sleeve 2, pushing it to overcome the elastic force of the connecting spring 15 and move along the outside of the main spraying channel 1. During the cleaning process, the movement of the sliding sleeve 2 connects the collection hopper 18 with the spraying chamber 3, and at the same time triggers the unblocking component 7 of the spraying hole 6 and the cutting component 8 in the spraying chamber 3 to start working. The impurities cut by the cutting component 8 and cleaned by the unblocking component 7 will enter the secondary spraying channel 16. After being filtered by the filter screen 19, the impurities are intercepted in the collection hopper 18, and the fluid can be discharged through the secondary spraying channel 16. The secondary spraying channel 16 assists in spraying. When the main spraying hole 6 is partially blocked, a certain degree of treatment agent spraying can be carried out through the secondary spraying hole 17 to ensure the continuity of the processing process. After cleaning is completed, the elastic potential energy of the connecting spring 15 will cause the sliding sleeve 2 to return to the initial position, and the system will resume normal spraying operation.

[0030] The working principle of this device is as follows: Under normal operating conditions, the expanding agent, flavoring agent, and other processing agents flow into the main injection channel 1, pass through the injection chamber 3, and are evenly sprayed onto the tobacco through the injection holes 6 on the injection plate 5. Once a blockage occurs in the injection hole 6, the pressure inside the injection chamber 3 will increase due to the continuous injection of the processing agent. The increased pressure pushes the sliding sleeve 2 to move along the main injection channel 1. During this process, the connecting spring 15 is compressed, storing elastic potential energy. When the sliding sleeve 2 moves, on the one hand, it drives the fixed rod 9, which is fixed on its inner wall and corresponds to the injection hole 6, to move synchronously. The unblocking blade holder 10 on the fixed rod 9 is then inserted into the injection hole 6. The unblocking blade holder 10 consists of multiple unblocking blades 11, which can scrape and cut the blockage in the injection hole 6, thereby clearing the injection hole 6. On the other hand, the movement of the sliding sleeve 2 connects the collection hopper 18 to the injection chamber 3. At the same time, the rotating turbine 12, which is rotatably connected inside the main injection channel 1, starts to work. It is driven to rotate by an external drive device. The connecting frame 13 around the rotating turbine 12 rotates accordingly, and the several cutting blades 14 set on the connecting frame 13 rotate at high speed in the injection chamber 3, cutting the blockage in the injection chamber 3 into smaller particles.

[0031] When the injection hole 6 becomes blocked, the pressure inside the injection chamber 3 begins to rise. This pressure acts on the sliding sleeve 2, pushing it to overcome the elastic force of the connecting spring 15 and move along the outside of the main injection channel 1. The movement of the sliding sleeve 2 connects the collection hopper 18 with the injection chamber 3. Impurities cut by the cutting component 8 and cleaned by the unblocking component 7 enter the secondary injection channel 16. After being filtered by the filter screen 19, the impurities are intercepted in the collection hopper 18, and the fluid can be discharged through the secondary injection channel 16. The secondary injection channel 16 assists in the injection. When the main injection hole 6 is partially blocked, a certain amount of treatment agent can be injected through the secondary injection hole 17 to ensure the continuity of the processing. After cleaning, the elastic potential energy of the connecting spring 15 will cause the sliding sleeve 2 to return to its initial position, and the system will resume normal injection operation.

[0032] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An expanded tobacco processing nozzle that facilitates cleaning, comprising a jet main channel (1), characterized in that: The outer side of the injection main channel (1) is provided with a slidable sliding sleeve (2), the middle part of the sliding sleeve (2) is provided with an injection cavity (3) communicated with the injection main channel (1), the top of the injection main channel (1) is provided with a connecting rod (4), the top of the connecting rod (4) is provided with an injection plate (5), the injection plate (5) is provided with a plurality of injection holes (6) uniformly distributed along the circumference thereof, the sliding sleeve (2) is provided with a dredging assembly (7) capable of dredging the injection hole (6), and the injection cavity (3) is provided with a cutting assembly (8) capable of cutting the blockage.

2. The easy-to-clean cut tobacco processing nozzle of claim 1, wherein: The dredging assembly (7) comprises a plurality of fixed rods (9) which are arranged in the inner wall of the sliding sleeve (2) and correspond to the injection holes (6) one by one, and each fixed rod (9) is provided with a dredging tool holder (10) capable of being inserted into the injection hole (6), and the dredging tool holder (10) is composed of a plurality of dredging blades (11).

3. The easy-to-clean cut tobacco processing nozzle of claim 1, wherein: The cutting assembly (8) comprises a rotating turbine (12) which is rotatably connected to the inside of the injection main channel (1), the rotating turbine (12) is provided with a plurality of connecting frames (13) on the circumferential side thereof, the connecting frames (13) are located in the injection cavity (3) and are provided with a plurality of cutting blades (14) thereon.

4. The easy-to-clean cut tobacco processing nozzle of claim 1, wherein: The connecting rod (4) is provided with a connecting compression spring (15), the inside of the sliding sleeve (2) is provided with an injection sub-channel (16), the top of the sliding sleeve (2) is provided with a plurality of injection sub-holes (17) uniformly distributed along the circumference thereof, the bottom of the sliding sleeve (2) is fixedly provided with a collecting hopper (18) communicated with the injection sub-channel (16), a filter screen (19) is arranged between the collecting hopper (18) and the injection sub-channel (16), when the sliding sleeve (2) moves, the collecting hopper (18) can be communicated with the injection cavity (3), when the injection hole (6) is blocked, the pressure in the injection cavity (3) rises, and at this time, the sliding sleeve (2) moves.

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