Storage cabinet cleaning device

Abstract

The utility model provides a storage cabinet cleaning device which is used for cleaning tailings of a storage cabinet, the storage cabinet comprises a storage channel and a conveying belt arranged at the bottom of the storage channel, the conveying belt is used for conveying tobacco leaves in the first direction, and the storage cabinet cleaning device comprises a detection unit arranged on the side wall of the storage channel and close to the discharging end of the storage cabinet; the detection unit is used for detecting the height of tobacco leaves on the conveying belt and outputting a detection signal when the height of the tobacco leaves is smaller than or equal to the preset height. The blowing mechanism is arranged on the side wall of the storage cabinet and located on the side, away from the discharging end, of the detection unit, the distance between the air outlet end of the blowing mechanism and the upper surface of the conveying belt is smaller than the preset height, and the air outlet end faces the discharging end; and the control system is electrically connected with the detection unit and the purging mechanism, and the control system is used for controlling the purging mechanism to operate for a fixed duration when receiving the detection signal. Tailings at the discharging end of the storage cabinet can be cleaned in time, and the cleanliness of the storage cabinet is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a storage cabinet cleaning device. Background Technology

[0002] During the tobacco processing, after slicing, loosening, and feeding, the tobacco leaves need to be stored in a storage tank for at least four hours. During storage, moisture and sugars gradually penetrate the microstructure of the tobacco leaves, improving their quality. After storage, the leaves are discharged. The storage tank control system displays the weight of the tobacco leaves in the tank, and the conveyor belt stops when the weight reaches zero. However, due to unavoidable weight errors, some residue will remain at the discharge end of the tank. If not cleaned promptly, this can lead to serious quality problems such as mislabeling and mixing. Furthermore, tobacco leaves remaining in the tank, exposed to air, will absorb moisture, causing abnormal moisture content, which can then be mixed into subsequent batches, affecting their quality. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem of residual tailings at the discharge end of a storage tank. This invention provides a storage tank cleaning device that can promptly clean the tailings at the discharge end of the storage tank, improving the cleanliness of the storage tank.

[0004] To solve the above-mentioned technical problems, the present invention provides a storage tank cleaning device for cleaning the tail material in the storage tank. The storage tank includes a storage channel and a conveyor belt disposed at the bottom of the storage channel. The conveyor belt is used to transport tobacco leaves along a first direction. The storage tank cleaning device includes:

[0005] The detection unit is located on the side wall of the storage channel and is positioned near the discharge end of the storage tank. The detection unit is used to detect the height of the tobacco leaves on the conveyor belt and outputs a detection signal when the height of the tobacco leaves is less than or equal to a preset height.

[0006] The purging mechanism is located on the side wall of the storage tank. The purging mechanism is located on the side of the detection unit away from the discharge end. The distance between the air outlet of the purging mechanism and the upper surface of the conveyor belt is less than the preset height. The purging mechanism is used to blow the tobacco leaves on the conveyor belt out from the discharge end.

[0007] The control system is electrically connected to the detection unit and the purging mechanism. The control system is used to control the purging mechanism to spray gas within a preset time when a detection signal is received.

[0008] Optionally, the purging mechanism includes:

[0009] The nozzle is located on the side wall of the storage tank and includes an air inlet and an air outlet.

[0010] The pipeline includes an inlet and an outlet, with the outlet connected to the air inlet and the inlet connected to the air source.

[0011] A solenoid valve is installed on a pipeline and is electrically connected to a control system. The control system controls the solenoid valve to open when it receives a detection signal.

[0012] Optionally, there are two nozzles, which are respectively located on two opposite side walls of the storage tank.

[0013] Optionally, the detection unit includes an infrared transmitter and an infrared receiver, which are respectively located on two opposite side walls of the storage cabinet, and are arranged opposite to each other, with the installation height of the infrared transmitter and the infrared receiver equal to a preset height.

[0014] Optionally, the nozzle axis has an angle with the first direction, the nozzle outlet is inclined toward the direction closer to the inside of the storage tank, and the angle between the projection of the nozzle axis on the upper surface of the conveyor belt and the first direction is 45 degrees.

[0015] Optionally, the nozzle axis has an angle with the upper surface of the conveyor belt, and the air outlet is inclined toward the upper surface of the conveyor belt. The angle between the nozzle axis and the upper surface of the conveyor belt is 3-5 degrees.

[0016] Optionally, the nozzle spray angle is 90 degrees.

[0017] Optionally, the preset duration is 38 seconds.

[0018] Optionally, the preset height is 0.5 to 1 cm.

[0019] Optionally, the gas source pressure is 0.4 MPa.

[0020] Compared with the prior art, this utility model has the following beneficial effects:

[0021] The present invention, through the installation of a detection unit and a purging mechanism at the discharge end of the storage tank, controls the purging mechanism to spray gas along the upper surface of the conveyor belt towards the discharge end when the detected tobacco leaf height at the discharge end is lower than a preset height. By setting the distance between the gas outlet and the upper surface of the conveyor belt to be less than the preset height, the effective range of the gas outlet can cover the tobacco leaves at the discharge end, thus blowing the tobacco leaves on the upper surface of the conveyor belt out of the storage tank, preventing residual material at the discharge end of the storage tank, and improving the cleanliness of the storage tank. Attached Figure Description

[0022] Figure 1 This figure shows a cross-sectional view of a storage tank cleaning device according to an embodiment of the present invention;

[0023] Figure 2 This is a top view of a storage tank cleaning device provided in an embodiment of the present invention.

[0024] Figure label:

[0025] 1. Storage channel, 2. Conveyor belt, 3. Detection unit, 4. Discharge end, 5. Tobacco leaves, 6. Blowing mechanism, 7. Air outlet, 8. Nozzle, 9. Infrared transmitter, 10. Infrared receiver. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the 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 utility model.

[0029] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] This utility model provides a storage tank cleaning device for cleaning tailings from a storage tank. The storage tank includes a storage channel 1 and a conveyor belt 2 located at the bottom of the storage channel 1. The conveyor belt 2 is used to move along a first direction ( Figure 1 and Figure 2 (As shown in the X direction) 5. Convey tobacco leaves. Figure 1 and Figure 2 As shown, the storage tank cleaning device includes a detection unit 3, a purging mechanism 6, and a control system. The detection unit 3 is located on the side wall of the storage channel 1, near the discharge end 4 of the storage tank. The detection unit 3 detects the height of the tobacco leaves 5 on the conveyor belt 2 and outputs a detection signal when the height of the tobacco leaves 5 is less than or equal to a preset height. The purging mechanism 6 is located on the side wall of the storage tank, on the side of the detection unit 3 furthest from the discharge end 4. The distance between the air outlet 7 of the purging mechanism 6 and the upper surface of the conveyor belt 2 is less than the preset height. The purging mechanism 6 blows the tobacco leaves 5 from the conveyor belt 2 out of the discharge end 4. The control system is electrically connected to the detection unit 3 and the purging mechanism 6. Upon receiving a detection signal, the control system controls the purging mechanism 6 to spray gas within a preset time period.

[0033] In the existing technology, because the weight detection system cannot accurately detect the weight of the tail tobacco leaves, tail material (a small portion of tobacco leaves, such as...) will remain on the upper surface of the conveyor belt 2 near the discharge end 4. Figure 1 (As shown in tobacco leaf 5). Statistics show that the thickness of this residual material on conveyor belt 2 is within a certain range. The preset height set in this embodiment is greater than the upper limit of the thickness of the residual material on conveyor belt 2. When the detection unit 3 detects that the height of tobacco leaf 5 is less than or equal to the preset height, it indicates that the tobacco leaf 5 on conveyor belt 2 has entered the residual material stage. At this time, the detection unit 3 outputs a detection signal, and the control system, upon receiving the detection signal, controls the blowing mechanism 6 to clean the residual material, thereby enabling timely and rapid removal of the residual material from the output end of the conveyor belt 2 and improving the cleanliness of the storage tank.

[0034] By adopting the above technical solution, a detection unit 3 and a blowing mechanism 6 are installed at the discharge end 4 of the storage tank. When the height of the tobacco leaves 5 at the discharge end 4 of the storage tank is detected to be lower than a preset height, the blowing mechanism 6 is controlled to spray gas along the upper surface of the conveyor belt 2 toward the discharge end 4, thereby blowing the tobacco leaves 5 on the upper surface of the conveyor belt 2 out of the storage tank. In addition, by setting the distance between the air outlet 7 and the upper surface of the conveyor belt 2 to be less than the preset height, the effective range of the air outlet 7 can cover the tobacco leaves 5 on the discharge end 4, thereby ensuring that the tobacco leaves 5 remaining on the discharge end 4 of the conveyor belt 2 are cleaned up, preventing residual material from remaining at the discharge end 4 of the storage tank, and improving the cleanliness of the storage tank.

[0035] Furthermore, the purging mechanism 6 includes a nozzle 8, a pipe, and a solenoid valve. The nozzle 8 is located on the side wall of the storage tank (e.g., Figure 1 As shown in the figure, it includes an inlet end and an outlet end 7. The pipeline (not shown) includes an input end and an output end; the output end is connected to the inlet end, and the input end is connected to the air source. A solenoid valve (not shown) is installed on the pipeline and is electrically connected to the control system. The control system controls the solenoid valve to remain open for a preset time period (38 seconds) upon receiving a detection signal. Specifically, the air source can output compressed gas at a pressure of 0.4 MPa. When the solenoid valve is open, the gas output from the air source can enter the nozzle 8 through the pipeline and exit from the outlet end 7 to spray the tobacco leaves 5 on the conveyor belt 2. This increases the gas coverage area on the conveyor belt 2, preventing dead corners from remaining and being cleaned.

[0036] Furthermore, such as Figure 2 As shown, there are two nozzles 8, which are respectively located on two opposite side walls of the storage tank. By simultaneously spraying gas onto the surface of the conveyor belt 2 from both sides along different blowing directions through the two nozzles 8, the efficiency of cleaning tobacco leaves 5 can be improved.

[0037] Furthermore, such as Figure 2As shown, the detection unit 3 includes an infrared transmitter 9 and an infrared receiver 10, which are respectively installed on two opposite side walls of the storage tank. The infrared transmitter 9 and infrared receiver 10 are positioned opposite each other, and their installation height is equal to a preset height. Specifically, the preset height is 0.5–1 cm. When the height of the tobacco leaves 5 is greater than the preset height, the tobacco leaves 5 can block the light signal emitted by the infrared transmitter 9, preventing the infrared receiver 10 from receiving the light signal, indicating that the storage tank has not yet entered the tail material cleaning stage. When the height of the tobacco leaves 5 is less than or equal to the preset height, the light signal emitted by the infrared transmitter 9 is not blocked by the tobacco leaves 5, and the infrared receiver 10 can receive the light signal emitted by the infrared transmitter 9. This indicates that the storage tank has entered the tail material cleaning stage. At this time, the control system receives the detection signal from the infrared receiver 10 and then controls the solenoid valve to open, causing gas to blow the tail material tobacco leaves 5 on the conveyor belt 2, thereby achieving automatic control and improving cleaning efficiency.

[0038] Furthermore, such as Figure 2 As shown, the axis of nozzle 8 forms an angle with the first direction, the outlet end 7 of nozzle 8 is inclined towards the direction closer to the inside of the storage tank, and the angle between the projection of the axis of nozzle 8 onto the upper surface of conveyor belt 2 and the first direction is 45 degrees (e.g., Figure 2 As shown in angle α). Specifically, the spray angle of nozzle 8 is 90 degrees (as shown in angle α). Figure 2 As shown in the middle γ angle), setting the above angle to 45 degrees allows the effective range of nozzle 8 to cover the upper surface of the conveyor belt 2 downstream of nozzle 8, thereby improving cleaning efficiency.

[0039] Furthermore, such as Figure 1 As shown, the axis of nozzle 8 forms an angle with the upper surface of conveyor belt 2, and the air outlet 7 is inclined towards the upper surface of conveyor belt 2. The angle between the axis of nozzle 8 and the upper surface of conveyor belt 2 is 3-5 degrees. Figure 1 (As shown in the middle β angle).

[0040] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A storage tank cleaning device for cleaning the tailings of a storage tank, the storage tank comprising a storage channel and a conveyor belt disposed at the bottom of the storage channel, the conveyor belt being used to convey tobacco leaves along a first direction, characterized in that, The storage tank cleaning device includes: A detection unit is located on the side wall of the storage channel, and the detection unit is positioned near the discharge end of the storage tank; the detection unit is used to detect the height of the tobacco leaves on the conveyor belt, and outputs a detection signal when the height of the tobacco leaves is less than or equal to a preset height; A purging mechanism is provided on the side wall of the storage tank. The purging mechanism is located on the side of the detection unit away from the discharge end. The distance between the air outlet end of the purging mechanism and the upper surface of the conveyor belt is less than the preset height. The purging mechanism is used to blow the tobacco leaves on the conveyor belt out from the discharge end. The control system is electrically connected to the detection unit and the purging mechanism. The control system is used to control the purging mechanism to spray gas within a preset time when it receives the detection signal.

2. The storage tank cleaning device as described in claim 1, characterized in that, The purging mechanism includes: A nozzle is disposed on the side wall of the storage tank, and includes an air inlet and an air outlet. The pipeline includes an inlet and an outlet, the outlet being connected to the inlet and the inlet being connected to an air source; A solenoid valve is installed on the pipeline. The solenoid valve is electrically connected to the control system. The control system is used to control the solenoid valve to open when it receives the detection signal.

3. The storage tank cleaning device as described in claim 2, characterized in that, The number of nozzles is two, and the two nozzles are respectively located on two opposite side walls of the storage tank.

4. The storage tank cleaning device as described in claim 3, characterized in that, The detection unit includes an infrared transmitter and an infrared receiver, which are respectively located on two opposite side walls of the storage cabinet, and are arranged opposite to each other. The installation height of the infrared transmitter and the infrared receiver is equal to the preset height.

5. The storage tank cleaning device as described in claim 4, characterized in that, The nozzle has an angle between its axis and the first direction, the outlet end of the nozzle is inclined toward the interior of the storage tank, and the angle between the projection of the nozzle's axis onto the upper surface of the conveyor belt and the first direction is 45 degrees.

6. The storage tank cleaning device as described in claim 5, characterized in that, The nozzle has an angle between its axis and the upper surface of the conveyor belt, and the outlet end is inclined toward the upper surface of the conveyor belt. The angle between the nozzle's axis and the upper surface of the conveyor belt is 3-5 degrees.

7. The storage tank cleaning device as described in claim 6, characterized in that, The nozzle has a spray angle of 90 degrees.

8. The storage tank cleaning device as described in claim 6, characterized in that, The preset duration is 38 seconds.

9. The storage tank cleaning device as described in claim 6, characterized in that, The preset height is 0.5 to 1 cm.

10. The storage tank cleaning device as described in claim 6, characterized in that, The gas pressure of the gas source is 0.4 MPa.

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