Self-cleaning blanking gate

Through the design of a self-cleaning blanking gate, the positive pressure airflow of the air guide component and the blowing component is used to clean the tobacco on the gate surface, solving the problem of loose gate closure caused by tobacco knots, and improving the equipment operation stability and cigarette quality.

CN223473097UActive Publication Date: 2025-10-28HUBEI CHINA TOBACCO INDUSTRY CO LTD
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Patent Information

Application Number
CN202422829831.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-28
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

In existing cigarette making machines, tobacco sticks to the mating surface of the blanking gate and the tobacco chamber to form tobacco knots, which prevents the gate from closing completely, causing air leakage and pressure relief, affecting the normal operation of the equipment and the quality of cigarettes.

Method used

A self-cleaning blanking gate is designed, equipped with an air guide component and an air blowing component. Positive pressure airflow is used to clean the gate body to ensure that there is no tobacco residue on the gate surface. Waist-shaped air guide grooves and evenly distributed cleaning holes are used, combined with seals and lubricating layers to improve cleaning effect and efficiency.

Benefits of technology

Effectively prevent tobacco residue from affecting equipment operation, ensure that the gate is tightly closed, reduce air leakage and pressure relief, and improve equipment operation efficiency and cigarette quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cigarette making machines, in particular to a self-cleaning blanking gate which comprises a gate body and is characterized by further comprising at least one air guide assembly and an air blowing assembly used for providing positive pressure airflow for the air guide assembly, and the air guide assembly is connected with the gate body. The air guide assembly is provided with an air guide channel, the gate body is provided with a plurality of cleaning holes, and the cleaning holes communicate with the air guide channel. Through cooperation of the air blowing assembly and the air guiding assembly, the problems that tobacco shreds are left on the gate body, so that the gate is not tightly closed, and air leakage and pressure relief are caused are effectively solved. Specifically, positive pressure airflow is conveyed to the air guide assembly through the air blowing assembly and then enters the cleaning hole through the air guide channel, so that residual tobacco shreds on the gate body are cleaned, and the situation that normal operation of equipment is affected by the residual tobacco shreds is avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of cigarette making machines, and in particular to a self-cleaning material discharge gate. Background Technology

[0002] When existing cigarette making machines are running continuously and normally, the tobacco in the tobacco chamber needs to fall into the storage area through the feeding gate. At this time, some tobacco will stick to the working surface of the feeding gate. When the feeding gate is closed, the residual tobacco on the gate is squeezed into tobacco knots by the mating surface of the feeding gate and the tobacco chamber. It sticks firmly to the mating surface of the feeding gate and the tobacco chamber, causing the feeding gate and the tobacco chamber to not be able to close completely, resulting in air leakage and pressure loss. As a result, it is not possible to generate enough negative pressure to control the pneumatic feeding system to transport tobacco to the pneumatic feeding mechanism. This causes the equipment to shut down due to insufficient tobacco supply, resulting in empty and loose cigarettes and insufficient tobacco supply.

[0003] Utility model patent CN218424547U discloses a monitoring and cleaning device for the discharge gate of a cigarette machine feeding and forming machine, relating to the technical field of cigarette machine accessories. The device includes a contact plate, a proximity switch, a first fixed bracket, a second fixed bracket, and an air pipe connector. One end of the contact plate is fixedly connected to the discharge gate, and the other end rotates up and down under the influence of the discharge gate. When the contact plate moves within the trigger distance of the proximity switch, the proximity switch is activated. The first fixed bracket is fixedly connected to the feeding and forming machine, the second fixed bracket is fixedly connected to the first fixed bracket, and the air pipe connector is fixedly connected to the second fixed bracket. The air pipe connector includes an air outlet facing the proximity switch, and the other end of the air pipe connector is connected to positive pressure gas.

[0004] However, such devices still have their limitations. The aforementioned devices are mainly used to clean soot, dust, or tobacco from proximity switches, but they cannot effectively clean the gate body. As a result, soot buildup can still cause the gate to fail to close completely, leading to shutdown accidents. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a self-cleaning feeding gate that can effectively clean the gate body during operation, preventing tobacco clumps from adhering to the mating surface between the feeding gate and the tobacco cavity, reducing potential equipment operation hazards, and significantly improving equipment operating efficiency and cigarette product quality.

[0006] The technical solution to the problem of this utility model is to provide a self-cleaning discharge gate, including a gate body, characterized in that it further includes at least one air guiding component and an air blowing component for providing positive pressure airflow to the air guiding component, the air guiding component is connected to the gate body; the air guiding component is provided with an air guiding channel, and the gate body is provided with a plurality of cleaning holes, all of which are connected to the air guiding channel.

[0007] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following features: the air guide channel is an air guide groove with a waist-shaped structure, and the groove opening of the air guide groove is oriented in a direction corresponding to the opening direction of the cleaning hole.

[0008] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following feature: a number of cleaning holes are evenly spaced on the gate body along the length of the air guide groove.

[0009] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following feature: two air guide grooves are respectively provided at both ends of the gate body along its length.

[0010] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following feature: the length direction of the air guide groove is parallel to the width direction of the discharge gate.

[0011] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following features: the air guiding component includes a sealing element, and the air guiding channel is provided on the sealing element.

[0012] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following feature: the sealing element is detachably connected to the gate body.

[0013] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following features: the air blowing assembly includes an air pipe connector disposed on the air guiding assembly, an air pipe connected to the air pipe connector, and a power unit for controlling the air passage of the air pipe; the air pipe connector is connected to the air guiding channel.

[0014] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following features: the gate body includes a non-working surface and a working surface to be cleaned, and the air blowing component and the air guiding component are both located on the non-working surface side.

[0015] Furthermore, the self-cleaning discharge gate provided by this utility model may also have the following feature: a lubricating layer is provided in the air guide channel to reduce the resistance to gas flow.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In this application, the cooperation between the air blowing assembly and the air guiding assembly effectively prevents tobacco residue from remaining on the gate body, thus avoiding problems such as incomplete gate closure and air leakage / pressure loss. Specifically, the positive pressure airflow is delivered to the air guiding assembly through the air blowing assembly, and then enters the cleaning hole through the air guiding channel, thereby cleaning the residual tobacco on the gate body and preventing residual tobacco from affecting the normal operation of the equipment.

[0018] 2. In this application, in order to better guide the positive pressure airflow, the air guide channel is further designed as a waist-shaped air guide groove, and the air guide groove is respectively set at both ends of the length direction of the gate body, so as to ensure that the positive pressure airflow covers the working surface of the gate body more evenly and comprehensively, and further improves the cleaning efficiency and effect of the self-cleaning material discharge gate.

[0019] 3. In this application, by designing a sealing element, a reliable seal can be ensured between the air guide channel and the cleaning port, preventing airflow leakage from affecting the cleaning effect. Furthermore, the detachable connection of the sealing element improves the convenience of maintenance and replacement, thereby saving time and costs associated with maintenance and replacement. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the air guiding component according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Gate body; 2. Air blowing assembly; 3. Air guiding assembly; 4. Air guiding groove; 5. Cleaning hole; 6. Seal; 7. Air pipe connector; 8. Air pipe; 9. Power unit. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This embodiment provides a self-cleaning material discharge gate, the specific structure of which is as follows:

[0027] A self-cleaning material discharge gate, such as Figure 1 and Figure 2 As shown, the device includes a gate body 1, which has a connecting flange for installation. The self-cleaning discharge gate also includes at least one air guiding assembly 3 and an air blowing assembly 2 for providing positive pressure airflow to the air guiding assembly 3. The air guiding assembly 3 is connected to the gate body 1. The air guiding assembly 3 has an air guiding channel, and the gate body 1 has several cleaning holes 5, all of which communicate with the air guiding channel. In use, the positive pressure airflow is delivered to the air guiding assembly 3 through the air blowing assembly 2, and then enters the cleaning holes 5 through the air guiding channel, thereby cleaning residual tobacco on the gate body 1 and preventing residual tobacco from affecting the normal operation of the equipment.

[0028] In some embodiments, to more effectively guide the positive pressure airflow, such as Figure 2 As shown, the air guiding channel is an oblong-shaped air guiding groove 4, and the opening of the air guiding groove 4 corresponds to the opening direction of the cleaning hole 5. In order to make the cleaning effect more uniform and thorough, it is preferable to arrange several cleaning holes 5 evenly spaced along the length of the air guiding groove 4 on the gate body 1.

[0029] As a further improvement to the above embodiment, the two air guide grooves 4 are respectively located at both ends of the gate body 1 along its length, which can effectively balance the distribution and flow of the cleaning airflow and ensure that the positive pressure airflow has a more comprehensive and sufficient cleaning effect on the gate body 1. To ensure that the positive pressure airflow can be utilized to the maximum extent, it is preferable that the length direction of the air guide groove 4 is parallel to the width direction of the discharge gate, further improving the cleaning efficiency and effect of the self-cleaning discharge gate.

[0030] In some embodiments, the air guiding assembly 3 includes a sealing element 6, and an air guiding channel is disposed on the sealing element 6, which can ensure a reliable seal at the connection between the air guiding channel and the cleaning hole 5, avoiding air leakage and weakening of the cleaning effect. As a further improvement of this embodiment, the sealing element 6 is detachably connected to the gate body 1, making the maintenance of the cleaning hole 5 and the air guiding channel more convenient, without the need to disassemble the entire gate, ensuring the long-term stable working state of the self-cleaning discharge gate. The detachable connection is preferably a bolted connection.

[0031] In some embodiments, as Figure 1 As shown, the air blowing assembly 2 includes an air pipe 8 connector 7 disposed on the air guiding assembly 3, an air pipe 8 connected to the air pipe 8 connector 7, and a power unit 9 for controlling the air passage of the air pipe 8; wherein, the air pipe 8 connector 7 is connected to the air guiding channel. The power unit 9 is preferably a solenoid valve, which can realize rapid response and precise control of the air passage of the air pipe 8, thereby improving the cleaning effect and flexibility of the self-cleaning discharge gate.

[0032] In some embodiments, in order to avoid the presence of the air blowing assembly 2 and the air guiding assembly 3 from interfering with the working surface of the gate body 1, the gate body 1 includes a non-working surface and a working surface to be cleaned, and the air blowing assembly 2 and the air guiding assembly 3 are both located on the non-working surface side.

[0033] In some embodiments, a lubricating layer is provided within the gas guide channel to reduce gas flow resistance, thereby improving cleaning efficiency. Specifically, the lubricating layer is preferably a smooth coating formed of polytetrafluoroethylene or polyethylene.

[0034] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0035] In the description of this invention, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] In the description of this invention, it should also be noted that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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 this invention. In the description of this invention, unless otherwise stated, "a number" means two or more.

[0037] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A self-cleaning material discharge gate, comprising a gate body (1), characterized in that, It also includes at least one air guide assembly (3) and an air blowing assembly (2) for providing positive pressure airflow to the air guide assembly (3), the air guide assembly (3) being connected to the gate body (1); the air guide assembly (3) is provided with an air guide channel, and the gate body (1) is provided with a plurality of cleaning holes (5), all of which are connected to the air guide channel.

2. The self-cleaning material discharge gate according to claim 1, characterized in that, The air guide channel is an air guide groove (4) with a waist-shaped structure, and the groove opening of the air guide groove (4) is oriented in a direction corresponding to the opening direction of the cleaning hole (5).

3. The self-cleaning material discharge gate according to claim 2, characterized in that, Several cleaning holes (5) are evenly spaced along the length of the air guide groove (4) on the gate body (1).

4. The self-cleaning material discharge gate according to claim 2, characterized in that, The two air guide grooves (4) are respectively located at both ends of the length direction of the gate body (1).

5. The self-cleaning material discharge gate according to claim 4, characterized in that, The length direction of the air guide groove (4) is parallel to the width direction of the material discharge gate.

6. The self-cleaning material discharge gate according to claim 1, characterized in that, The air guiding assembly (3) includes a seal (6), and the air guiding channel is disposed on the seal (6).

7. The self-cleaning material discharge gate according to claim 6, characterized in that, The sealing element (6) is detachably connected to the gate body (1).

8. The self-cleaning material discharge gate according to claim 1, characterized in that, The air blowing assembly (2) includes an air pipe (8) connector (7) disposed on the air guiding assembly (3), an air pipe (8) connected to the air pipe (8) connector (7), and a power unit (9) for controlling the air passage of the air pipe (8); the air pipe (8) connector (7) is connected to the air guiding channel.

9. The self-cleaning material discharge gate according to claim 1, characterized in that, The gate body (1) includes a non-working surface and a working surface to be cleaned. The air blowing component (2) and the air guiding component (3) are both located on the non-working surface.

10. The self-cleaning material discharge gate according to any one of claims 1-9, characterized in that, The gas guide channel is equipped with a lubricating layer to reduce gas flow resistance.

Citation Information

Patent Citations

  • Monitoring and cleaning device for blanking gate of feeding and strip-forming machine of cigarette making machine

    CN218424547U