Tobacco turnover box cleaning device and cleaning method

Abstract

The invention belongs to the technical field of tobacco production, and discloses a tobacco turnover box cleaning device and method.The tobacco turnover box cleaning device comprises a conveyor, a buffer cabinet, an overturning assembly, a support assembly, a first driving assembly, a camera and a cleaning module; the overturning assembly comprises an overturning motor and an L-shaped fork arm installed at the output end of the overturning motor, the L-shaped fork arm is inserted into an insertion groove of the turnover box, the overturning motor drives the L-shaped fork arm and the turnover box to rotate around the Y-axis direction, and tobacco in the turnover box is poured into the buffer cabinet; a bearing plate is arranged at the output end of the first driving assembly, and the first driving assembly drives the bearing plate to be close to or away from the overturning assembly in the X-axis direction; the camera shoots the inner wall of the turnover box; the cleaning module is installed on the bearing plate and comprises a second driving assembly, a third driving assembly and a spraying pipe, the second driving assembly drives the third driving assembly and the spraying pipe to rotate around the Z-axis direction, and the third driving assembly drives the spraying pipe to rotate around the Y-axis direction.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco production, and in particular to a tobacco turnover box cleaning device and a cleaning method. Background Art

[0002] In the tobacco production process, tobacco products such as tobacco leaves and shredded tobacco are placed in turnover boxes for storage or transportation. In the vacuum rehumidification process of the silk-making workshop, the turnover box and the tobacco placed inside the turnover box enter the vacuum rehumidification equipment together for vacuuming, heating and humidification. After humidification, the tobacco is easy to adhere to the inner wall of the turnover box. When the box is turned over and the tobacco is poured out, part of the tobacco adheres to the inner wall of the turnover box and cannot be poured out cleanly. In order to prevent the tobacco adhered to the inner wall of the turnover box from mixing with the next batch of tobacco, a spray cleaning device is usually used to clean the inner wall of the turnover box. The spray cleaning device includes a cylinder and an air pipe. The air pipe is connected to a compressor. The compressor provides high-pressure gas to the air pipe, and the air pipe is connected to the output end of the cylinder. The cylinder drives the air pipe to extend into the interior of the turnover box. The air pipe sprays and cleans the inner wall of the turnover box, so that the tobacco adhered to the inner wall of the turnover box is cleaned out.

[0003] However, the five inner walls of the turnover box are located in different directions. When the cylinder drives the air pipe to enter the inner wall of the turnover box, the nozzle of the air pipe can only be directed toward one of the inner walls, and the remaining inner walls can only be cleaned by the reflux gas, and the cleaning effect is poor. Summary of the invention

[0004] The object of the present invention is to provide a tobacco turnover box cleaning device, which can adjust the direction of the nozzle and improve the cleaning effect on the inner wall of the turnover box.

[0005] Another object of the present invention is to provide a cleaning method to optimize the cleaning steps for the inner wall of the turnover box and improve production efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, a tobacco turnover box cleaning device is provided, comprising:

[0008] Conveyors and buffer cabinets are arranged at intervals along the X-axis direction, the conveyors are used to transport turnover boxes, and the buffer cabinets are used to collect and transport tobacco;

[0009] A flip assembly is arranged between the conveyor and the buffer cabinet, the flip assembly comprises a flip motor and an L-shaped fork arm installed at the output end of the flip motor, the L-shaped fork arm is used to be inserted into the slot of the turnover box, and the flip motor is used to drive the L-shaped fork arm and the turnover box to rotate around the Y-axis direction, so that the tobacco in the turnover box is poured into the buffer cabinet;

[0010] A bracket assembly, arranged on a side of the flip assembly close to the buffer cabinet;

[0011] A first driving assembly is installed on the bracket assembly, and a bearing plate is provided at the output end of the first driving assembly, and the first driving assembly is used to drive the bearing plate to approach or move away from the flip assembly along the X-axis direction;

[0012] A camera, mounted on the carrying plate, and used to photograph the inner wall of the turnover box;

[0013] A cleaning module is installed on the supporting plate, and the cleaning module includes a second driving assembly, a third driving assembly and a nozzle, wherein the second driving assembly is used to drive the third driving assembly and the nozzle to rotate around the Z-axis direction, and the third driving assembly is used to drive the nozzle to rotate around the Y-axis direction.

[0014] As an optional technical solution, a nozzle is fixedly installed at the end of the nozzle pipe, and a first nozzle hole connected to the internal through hole of the nozzle pipe is provided inside the nozzle, and the cross section of the first nozzle hole is a rounded rectangle.

[0015] As an optional technical solution, a nozzle is rotatably installed at the end of the nozzle pipe, and a spherical cavity connected to the internal through hole of the nozzle pipe is provided inside the nozzle. Four second spray holes are provided on the side wall of the nozzle. The four second spray holes are equidistantly spaced around the circumference of the spherical cavity, and the second spray holes connect the spherical cavity and the outer wall of the nozzle.

[0016] As an optional technical solution, the center of the spherical cavity and the central axes of the four second spray holes are located on the same cross section, and on the cross section, the central axes of the second spray holes are parallel to or coincide with the tangent of the spherical cavity.

[0017] As an optional technical solution, the side wall of the nozzle is also provided with a plurality of third spray holes, the plurality of third spray holes are located on the side of the nozzle away from the nozzle pipe, the plurality of third spray holes are arranged at equal intervals around the rotation axis of the nozzle, and the third spray holes connect the spherical cavity and the outer wall of the nozzle.

[0018] As an optional technical solution, the extension direction of the third spray hole is perpendicular to the rotation axis of the nozzle. The third spray hole includes an inner interface located on the inner wall of the spherical cavity and an outer nozzle located on the outer wall of the nozzle. Multiple inner interfaces are connected to each other, and multiple outer nozzles are isolated from each other.

[0019] As an optional technical solution, the bracket assembly is provided with a distance measuring device, and the distance measuring device is used to detect the position of the nozzle in the X-axis direction.

[0020] In a second aspect, a cleaning method is provided, which is implemented by using the tobacco turnover box cleaning device as described above, wherein the turnover box includes an inner bottom wall and four inner side walls, and the inner bottom wall is directly opposite to the opening of the turnover box, and the cleaning method includes the following steps:

[0021] S100, taking photos of the inner bottom wall and the four inner side walls of the turnover box through a camera to identify the amount of tobacco adhered to the four inner side walls;

[0022] S200, calculate the first total time length of spraying the inner bottom wall and the four inner side walls, if the first total time length is less than the preset time length, execute step S300, if the first total time length is greater than the preset time length, exclude the inner side wall with the least amount of tobacco adhesion and calculate the second total time length of spraying the inner bottom wall and the remaining three inner side walls, if the second total time length is less than the preset time length, execute step S300, if the second total time length is greater than the preset time length, exclude the two inner side walls with the least amount of tobacco adhesion and calculate the second total time length of spraying the inner bottom wall and the remaining two inner side walls a third total time length of the inner wall, if the third total time length is less than the preset time length, executing step S300; if the third total time length is greater than the preset time length, excluding the three inner wall with the least amount of tobacco adhesion and calculating the fourth total time length of spraying the inner bottom wall and the remaining inner wall; if the fourth total time length is less than the preset time length, executing step S300; if the fourth total time length is greater than the preset time length, excluding the four inner wall and calculating the fifth total time length of spraying the inner bottom wall; if the fifth total time length is less than the preset time length, executing step S300;

[0023] S300, using a nozzle to spray clean the turnover box.

[0024] As an optional technical solution, before step S100, the following steps are also included:

[0025] A flip motor is used to drive the L-shaped fork arm to flip around the Y-axis direction to the table of the conveyor. The conveyor pushes the turnover box toward the flip assembly. After the L-shaped fork arm is inserted into the slot of the turnover box, the flip motor drives the L-shaped fork arm to flip around the Y-axis direction to the top of the buffer cabinet, and the turnover box pours the tobacco into the buffer cabinet.

[0026] As an optional technical solution, in step S200, if the fifth total time is greater than the preset time, the inner bottom wall is divided into areas, and the tobacco adhesion amounts of various areas of the inner bottom wall are compared, and areas with the largest tobacco adhesion amounts are sprayed preferentially; when the spraying time reaches the preset time, the spraying of the turnover box is stopped, and the next turnover box is emptied and sprayed clean.

[0027] Beneficial effects of the present invention:

[0028] The present invention provides a tobacco turnover box cleaning device, which includes a conveyor, a buffer cabinet, a flip assembly, a bracket assembly, a first drive assembly, a camera and a cleaning module. The conveyor and the buffer cabinet are arranged at intervals along the X-axis direction. The conveyor is used to convey the turnover box, and the buffer cabinet is used to collect and convey tobacco; the flip assembly is arranged between the conveyor and the buffer cabinet, and the flip assembly includes a flip motor and an L-shaped fork arm installed at the output end of the flip motor, the L-shaped fork arm is used to be inserted into a slot of the turnover box, and the flip motor is used to drive the L-shaped fork arm and the turnover box to rotate around the Y-axis direction to make the tobacco in the turnover box rotate. The grass is poured into the buffer cabinet; the bracket assembly is arranged on the side of the flip assembly close to the buffer cabinet; the first drive assembly is installed on the bracket assembly, and a bearing plate is provided at the output end of the first drive assembly, and the first drive assembly is used to drive the bearing plate to approach or move away from the flip assembly along the X-axis direction; the camera is installed on the bearing plate, and the camera is used to shoot the inner wall of the turnover box; the cleaning module is installed on the bearing plate, and the cleaning module includes a second drive assembly, a third drive assembly and a nozzle, the second drive assembly is used to drive the third drive assembly and the nozzle to rotate around the Z-axis direction, and the third drive assembly is used to drive the nozzle to rotate around the Y-axis direction.

[0029] When the tobacco turnover box cleaning device starts running, the flipping motor drives the L-shaped fork arm to flip to the table of the conveyor, and the conveyor pushes the turnover box to the flipping assembly. After the L-shaped fork arm is inserted into the slot of the turnover box, the flipping motor drives the L-shaped fork arm to flip around the Y-axis direction to the top of the buffer cabinet, and the turnover box pours the tobacco into the buffer cabinet. The first driving assembly drives the carrier plate, the camera and the cleaning module to approach the turnover box along the X-axis direction, and the nozzle extends into the interior of the turnover box. Since the nozzle can rotate around the Z-axis and Y-axis directions, and can also move along the X-axis direction, the nozzle can spray and clean the five inner walls of the turnover box from multiple angles to improve the cleaning effect.

[0030] The cleaning method provided by the present invention comprises the following steps: S100, taking photos and identifying the inner bottom wall and four inner side walls of the turnover box through a camera, and comparing the tobacco adhesion amount of the four inner side walls; S200, calculating the first total time length of spraying the inner bottom wall and the four inner side walls, if the first total time length is less than the preset time length, executing step S300, if the first total time length is greater than the preset time length, then excluding the inner side wall with the least tobacco adhesion amount and calculating the second total time length of spraying the inner bottom wall and the remaining three inner side walls, if the second total time length is less than the preset time length, then executing step S300, if the second total time length is greater than the preset time length, then excluding the inner side wall with the least tobacco adhesion amount The two inner side walls are excluded and the third total time of the inner bottom wall and the other two inner side walls is calculated. If the third total time is less than the preset time, step S300 is executed. If the third total time is greater than the preset time, the three inner side walls with the least amount of tobacco adhesion are excluded and the fourth total time of the inner bottom wall and the other inner side wall is calculated. If the fourth total time is less than the preset time, step S300 is executed. If the fourth total time is greater than the preset time, the four inner side walls are excluded and the fifth total time of the inner bottom wall is calculated. If the fifth total time is less than the preset time, step S300 is executed. S300, use the nozzle to spray and clean the turnover box. Using the above cleaning method to clean the turnover box can prevent material breakage due to excessive cleaning time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural schematic diagram of the tobacco turnover box cleaning device of the present invention from a first perspective;

[0032] Figure 2 yes Figure 1 A partial enlarged view of position A in the middle;

[0033] Figure 3 is a structural schematic diagram of the tobacco turnover box cleaning device of the present invention from a second viewing angle;

[0034] Figure 4 It is a schematic structural diagram of the nozzle of the present invention;

[0035] Figure 5 is another structural schematic diagram of the nozzle of the present invention;

[0036] Figure 6 is a cross-sectional view of a nozzle of the present invention;

[0037] Figure 7 is a cross-sectional view of the nozzle of the present invention from another perspective;

[0038] Figure 8 is a flow chart of the cleaning method of the present invention.

[0039] In the figure:

[0040] 100. Turnover box;

[0041] 1. Conveyor; 2. Buffer cabinet; 3. Flip assembly; 31. L-shaped fork arm; 4. Bracket assembly; 5. First drive assembly; 6. Carrying plate; 7. Camera; 8. Cleaning module; 81. Second drive assembly; 82. Third drive assembly; 83. Spray pipe; 84. Nozzle; 841. First spray hole; 842. Spherical cavity; 843. Second spray hole; 844. Third spray hole. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0046] Embodiment 1

[0047] like Figures 1 to 3As shown, the present embodiment provides a tobacco turnover box cleaning device, which includes a conveyor 1, a buffer cabinet 2, a flip assembly 3, a bracket assembly 4, a first drive assembly 5, a camera 7 and a cleaning module 8. The conveyor 1 and the buffer cabinet 2 are arranged at intervals along the X-axis direction. The conveyor 1 is used to convey the turnover box 100, and the buffer cabinet 2 is used to collect and convey tobacco; the flip assembly 3 is arranged between the conveyor 1 and the buffer cabinet 2, and the flip assembly 3 includes a flip motor and an L-shaped fork arm 31 installed at the output end of the flip motor. The L-shaped fork arm 31 is used to be inserted into the slot of the turnover box 100, and the flip motor is used to drive the L-shaped fork arm 31 and the turnover box 100 to rotate around the Y-axis direction, so that the tobacco in the turnover box 100 The grass is poured into the buffer cabinet 2; the bracket assembly 4 is arranged on the side of the flip assembly 3 close to the buffer cabinet 2; the first driving assembly 5 is installed on the bracket assembly 4, and the output end of the first driving assembly 5 is provided with a supporting plate 6, and the first driving assembly 5 is used to drive the supporting plate 6 to approach or move away from the flip assembly 3 along the X-axis direction; the camera 7 is installed on the supporting plate 6, and the camera 7 is used to shoot the inner wall of the turnover box 100; the cleaning module 8 is installed on the supporting plate 6, and the cleaning module 8 includes a second driving assembly 81, a third driving assembly 82 and a nozzle 83, the second driving assembly 81 is used to drive the third driving assembly 82 and the nozzle 83 to rotate around the Z-axis direction, and the third driving assembly 82 is used to drive the nozzle 83 to rotate around the Y-axis direction.

[0048] Specifically, the turnover box 100 is composed of five box plates. The turnover box 100 is provided with an opening. The box plates opposite to the opening are provided with slots. When the conveyor 1 conveys the turnover box 100, the opening of the turnover box 100 faces upward, and the box plates provided with slots abut against the table of the conveyor 1. When the tobacco turnover box cleaning device starts to run, the flip motor drives the L-shaped fork arm 31 to flip onto the table of the conveyor 1. The conveyor 1 pushes the turnover box 100 toward the flip assembly 3. After the L-shaped fork arm 31 is inserted into the slot of the turnover box 100, the flip motor drives the L-shaped fork arm 31 to flip around the Y-axis direction to the buffer cabinet 2. At the top of the turnover box 100, the turnover box 100 pours the tobacco into the buffer cabinet 2, the buffer cabinet 2 collects the tobacco and transports it to the next process, and then the opening of the turnover box 100 is directed toward the cleaning module 8 along the X-axis direction. The first driving assembly 5 drives the carrier plate 6, the camera 7 and the cleaning module 8 to approach the turnover box 100 along the X-axis direction, and the nozzle 83 extends into the interior of the turnover box 100. Since the nozzle 83 can rotate around the Z-axis and Y-axis directions and can also move along the X-axis direction, the nozzle 83 can spray and clean the five inner walls of the turnover box 100 from multiple angles to improve the cleaning effect.

[0049] Optionally, a slide rail is provided on the top of the support assembly 4, and a slider is provided on the bottom of the support plate 6, and the slider is slidably arranged on the slide rail. A displacement sensor is provided on the support assembly 4, and the displacement sensor detects the X-axis coordinate of the support plate 6 to ensure that the support plate 6 can drive the camera 7 and the cleaning module 8 to return to the zero position. An angle sensor is provided on the support plate 6, and the angle sensor detects the angle of the nozzle 83. With the zero point as the starting point, the range of rotation around the Z axis is between -90° and +90°, and the range of rotation around the Y axis is between -30° and +30°, to prevent exceeding the limit position and damaging the parts.

[0050] In this embodiment, the first driving assembly 5 includes a first motor and a screw-nut pair, the screw-nut pair is transmission-connected between the first motor and the carrier plate 6, and the first motor drives the carrier plate 6 to move along the X-axis direction through the screw-nut pair.

[0051] In some other embodiments, the first driving assembly 5 includes a first cylinder, an output end of the first cylinder is connected to the supporting plate 6, and the first cylinder drives the supporting plate 6 to move along the X-axis direction.

[0052] In this embodiment, the second drive assembly 81 includes a second motor, and the third drive assembly 82 and the nozzle 83 are installed at the output end of the second motor. The second motor can drive the third drive assembly 82 and the nozzle 83 to rotate around the Z-axis direction. The third drive assembly 82 includes a third motor, and the nozzle 83 is installed at the output end of the third motor. The third motor can drive the nozzle 83 to rotate around the Y-axis direction.

[0053] In this embodiment, the X-axis direction and the Y-axis direction are both horizontal lines, and the Z-axis direction is a vertical line.

[0054] Since the nozzle 83 can rotate around the Y-axis and the Z-axis, the nozzle 83 can be adjusted up and down, left and right, and can also be adjusted forward and backward along the X-axis. Therefore, the direction of the nozzle 83 can be adjusted as needed to accurately clean the five inner walls of the turnover box 100 and improve the cleaning effect.

[0055] The working principle of the compressor providing high-pressure gas to the nozzle 83 can be referred to the prior art, and will not be described in detail in this embodiment.

[0056] like Figure 4 As shown, in some embodiments, a nozzle 84 is fixedly installed at the end of the nozzle 83, and a first nozzle hole 841 is provided inside the nozzle 84 to communicate with the internal through hole of the nozzle 83. The cross section of the first nozzle hole 841 is a rounded rectangle. The nozzle 84 compresses the gas and accelerates the gas, so that tobacco adhering to the inner wall of the turnover box 100 can be effectively blown away.

[0057] like Figures 5 to 7As shown, in some other embodiments, a nozzle 84 is rotatably mounted at the end of the nozzle 83, a spherical cavity 842 is provided inside the nozzle 84 to communicate with the internal through hole of the nozzle 83, and four second spray holes 843 are provided on the side wall of the nozzle 84, and the four second spray holes 843 are equally spaced around the circumference of the spherical cavity 842, and the second spray holes 843 communicate with the outer wall of the spherical cavity 842 and the nozzle 84. The nozzle 84 includes a fixed part and a rotating part, the fixed part is fixedly inserted at the end of the nozzle 83, and the rotating part is rotatably mounted on the fixed part, and the spherical cavity 842 and the second spray hole 843 are opened in the rotating part. Under the action of gas pressure, the nozzle 84 rotates at the end of the nozzle 83 to perform rotary spray cleaning to improve the cleaning effect; the four second spray holes 843 are equally spaced to make the jet pressure of each second spray hole 843 equal.

[0058] like Figures 5 to 7 As shown, optionally, the center of the spherical cavity 842 and the central axes of the four second spray holes 843 are located on the same cross section. On this cross section, the central axes of the second spray holes 843 are parallel to or coincide with the tangent of the spherical cavity 842, thereby ensuring the guiding effect of the second spray holes 843 on the high-pressure gas.

[0059] like Figures 5 to 7 As shown, optionally, the side wall of the nozzle 84 is further provided with a plurality of third spray holes 844, the plurality of third spray holes 844 are located on the side of the nozzle 84 away from the nozzle 83, the plurality of third spray holes 844 are arranged at equal intervals around the rotation axis of the nozzle 84, and the third spray holes 844 are connected to the spherical cavity 842 and the outer wall of the nozzle 84. The extension direction of the third spray hole 844 and the extension direction of the second spray hole 843 are arranged at an angle, so that the inner wall of the turnover box 100 can be sprayed in different directions to improve the cleaning efficiency; the plurality of third spray holes 844 are arranged at equal intervals, so that the spray pressure of each third spray hole 844 is equal.

[0060] like Figures 5 to 7 As shown, optionally, the extension direction of the third spray hole 844 is perpendicular to the rotation axis of the nozzle 84, and the third spray hole 844 includes an inner interface located on the inner wall of the spherical cavity 842 and an outer spray hole located on the outer wall of the nozzle 84, a plurality of inner interfaces are interconnected, and a plurality of outer spray holes are isolated from each other, and a part of the gas in the spherical cavity 842 is discharged from the second spray hole 843, and the other part is discharged from the third spray hole 844.

[0061] Optionally, the support assembly 4 is provided with a distance measuring component, which is used to detect the position of the nozzle 84 in the X-axis direction. The distance measuring component is a grating ruler or a distance meter.

[0062] Embodiment 2

[0063] like Figure 8As shown, this embodiment provides a cleaning method, which is implemented by using the tobacco turnover box cleaning device as in Example 1. The turnover box 100 includes an inner bottom wall and four inner side walls. The inner bottom wall is directly opposite to the opening of the turnover box 100. The cleaning method includes the following steps:

[0064] S100, taking photos and identifying the inner bottom wall and four inner side walls of the turnover box 100 through the camera 7, and comparing the tobacco adhesion amounts on the four inner side walls.

[0065] S200, calculate the first total time length of the inner bottom wall and the four inner side walls for spraying. If the first total time length is less than the preset time length, execute step S300. If the first total time length is greater than the preset time length, exclude the inner side wall with the least amount of tobacco adhesion and calculate the second total time length of the inner bottom wall and the remaining three inner side walls for spraying. If the second total time length is less than the preset time length, execute step S300. If the second total time length is greater than the preset time length, exclude the two inner side walls with the least amount of tobacco adhesion and calculate the second total time length of the inner bottom wall and the remaining two inner side walls for spraying. The third total time of the side wall, if the third total time is less than the preset time, execute step S300, if the third total time is greater than the preset time, the three inner side walls with the least tobacco adhesion are excluded and the fourth total time of the inner bottom wall and the remaining inner side wall is calculated, if the fourth total time is less than the preset time, execute step S300, if the fourth total time is greater than the preset time, the four inner side walls are excluded and the fifth total time of the inner bottom wall is calculated, if the fifth total time is less than the preset time, execute step S300.

[0066] S300 , using the nozzle 83 to spray clean the turnover box 100 .

[0067] The tobacco turnover box cleaning device needs to transport the tobacco to the downstream loose rehumidification electronic belt scale on time. When the turnover box 100 starts to pour materials, the amount of tobacco poured can meet the feeding demand. However, after the turnover box 100 is emptied, when the turnover box 100 is sprayed and cleaned, the amount of tobacco blown off from the inner wall of the turnover box 100 may not necessarily meet the feeding demand. Therefore, it is necessary to control the cleaning time to prevent material shortage. This embodiment uses the camera 7 to identify the amount of tobacco adhered to the inner wall of the turnover box 100. Before the turnover box 100 is emptied by the flipping component 3, the opening of the turnover box 100 faces upward, the inner bottom wall of the turnover box 100 is the most moist and has the largest amount of tobacco adhered. After the turnover box 100 is flipped over and the material is emptied, the inner bottom wall with the largest amount of tobacco adhered is sprayed first, so that the tobacco adhered to the inner bottom wall of the turnover box 100 falls into the buffer cabinet 2 with the highest efficiency, and tobacco is provided to the next station in time to prevent material interruption. When the next station is about to be cut off, even if tobacco is still adhered to the inner wall of the turnover box 100, it is necessary to give up cleaning the turnover box 100 and flip the next turnover box 100 filled with tobacco by the flipping component 3 to empty the material, so that the material can continue to be supplied to the downstream in time to prevent material interruption.

[0068] Specifically, according to the amount of tobacco adhesion, the four inner walls are divided into the first inner wall, the second inner wall, the third inner wall and the fourth inner wall in sequence, and the amount of tobacco adhesion on the inner bottom wall, the first inner wall, the second inner wall, the third inner wall and the fourth inner wall gradually decreases. If the calculated first total time length of the inner bottom wall and the four inner walls is less than the preset time length, it indicates that the inner bottom wall and the four inner walls of the turnover box 100 are all sprayed and cleaned without causing material breakage. If the calculated first total time length of the inner bottom wall and the four inner walls is less than the preset time length, it indicates that the inner bottom wall and the four inner walls of the turnover box 100 are all sprayed and cleaned without causing material breakage. The first total time of the wall is greater than the preset time, indicating that spray cleaning of the inner bottom wall and the four inner side walls of the turnover box 100 will cause material breakage. In order to prevent material breakage, spray cleaning of at least one inner side wall must be abandoned. In this embodiment, the fourth inner side wall with the least tobacco adhesion is first abandoned, and the second total time of the inner bottom wall, the first inner side wall, the second inner side wall and the third inner side wall is recalculated, and the second total time is compared with the preset time again, and the above steps are repeated until step S300 can be executed.

[0069] Optionally, before step S100, the following steps are further included:

[0070] The flip motor drives the L-shaped fork arm 31 to flip around the Y-axis direction to the table top of the conveyor 1, and the conveyor 1 pushes the turnover box 100 toward the flip assembly 3. After the L-shaped fork arm 31 is inserted into the slot of the turnover box 100, the flip motor drives the L-shaped fork arm 31 to flip around the Y-axis direction to the top of the buffer cabinet 2, and the turnover box 100 pours the tobacco into the buffer cabinet 2.

[0071] The L-shaped fork arm 31 is flipped to the table surface of the conveyor 1 as the initial state. After the L-shaped fork arm 31 is inserted into the slot of the turnover box 100, the flipping motor drives the L-shaped fork arm 31 to rotate around the Y-axis direction at an angle greater than 90 degrees and less than 180 degrees, so that the turnover box 100 can pour tobacco into the buffer cabinet 2 in a tilted state, and then the turnover box 100 is dropped back to a horizontal state, that is, the opening of the turnover box 100 is toward the cleaning module 8 along the X-axis direction, and the first driving component 5 drives the supporting plate 6, the camera 7 and the cleaning module 8 to approach the turnover box 100 along the X-axis direction, and the turnover box 100 is spray-cleaned. When the spray-cleaning work is completed, the turnover box 100 is adjusted to a tilted state, so that the turnover box 100 can pour tobacco into the buffer cabinet 2 in a tilted state.

[0072] Optionally, in step S200, if the fifth total time is greater than the preset time, the inner bottom wall is divided into areas, the tobacco adhesion amounts of various areas of the inner bottom wall are compared, and the areas with the largest tobacco adhesion amounts are sprayed preferentially. When the spraying time reaches the preset time, the spraying of the turnover box 100 is stopped, and the next turnover box 100 is emptied and sprayed clean.

[0073] Tobacco is not always able to adhere evenly to each area of ​​the inner bottom wall. Some areas have a larger amount of tobacco adhesion, while other areas have a smaller amount of tobacco adhesion. When the fifth total time is greater than the preset time, the areas with the largest amount of tobacco adhesion are sprayed first. For example, the inner bottom wall is divided into four areas. According to the amount of tobacco adhesion, the four areas are the first area, the second area, the third area and the fourth area. The amount of tobacco adhesion in the first area, the second area, the third area and the fourth area gradually decreases. The first area is sprayed first, and if the material is not cut off, the second area is sprayed again until the blowing time reaches the preset time.

[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A tobacco turnover box cleaning device, characterized in that: include: A conveyor (1) and a buffer cabinet (2) are arranged at intervals along the X-axis direction, wherein the conveyor (1) is used to transport the turnover box (100), and the buffer cabinet (2) is used to collect and transport tobacco; A turnover assembly (3) is arranged between the conveyor (1) and the buffer cabinet (2), the turnover assembly (3) comprising a turnover motor and an L-shaped fork arm (31) installed at the output end of the turnover motor, the L-shaped fork arm (31) being used to be inserted into a slot of the turnover box (100), and the turnover motor being used to drive the L-shaped fork arm (31) and the turnover box (100) to rotate around the Y-axis direction, so that the tobacco in the turnover box (100) is poured into the buffer cabinet (2); A bracket assembly (4) is arranged on a side of the flip assembly (3) close to the buffer cabinet (2); a first driving assembly (5) mounted on the support assembly (4); a carrying plate (6) being provided at an output end of the first driving assembly (5); and the first driving assembly (5) being used to drive the carrying plate (6) to move closer to or farther from the flip assembly (3) along an X-axis direction; A camera (7) is mounted on the carrying plate (6), and the camera (7) is used to photograph the inner wall of the turnover box (100); A cleaning module (8) is mounted on the carrier plate (6), and the cleaning module (8) comprises a second driving assembly (81), a third driving assembly (82) and a nozzle (83), wherein the second driving assembly (81) is used to drive the third driving assembly (82) and the nozzle (83) to rotate around the Z-axis direction, and the third driving assembly (82) is used to drive the nozzle (83) to rotate around the Y-axis direction.

2. The tobacco turnover box cleaning device according to claim 1, characterized in that: A nozzle (84) is fixedly mounted at the end of the nozzle pipe (83), and a first nozzle hole (841) communicating with the internal through hole of the nozzle pipe (83) is provided inside the nozzle (84), and the cross section of the first nozzle hole (841) is a rounded rectangle.

3. The tobacco turnover box cleaning device according to claim 1, characterized in that: A nozzle (84) is rotatably mounted at the end of the nozzle pipe (83); a spherical cavity (842) communicating with an internal through hole of the nozzle pipe (83) is provided inside the nozzle (84); four second spray holes (843) are provided on the side wall of the nozzle (84); the four second spray holes (843) are equidistantly spaced around the circumference of the spherical cavity (842); the second spray holes (843) communicate with the spherical cavity (842) and the outer wall of the nozzle (84).

4. The tobacco turnover box cleaning device according to claim 3, characterized in that: The center of the spherical cavity (842) and the central axes of the four second spray holes (843) are located on the same cross section, and on this cross section, the central axes of the second spray holes (843) are parallel to or coincide with the tangent of the spherical cavity (842).

5. The tobacco turnover box cleaning device according to claim 3, characterized in that: The side wall of the nozzle (84) is also provided with a plurality of third spray holes (844), the plurality of third spray holes (844) are located on a side of the nozzle (84) away from the nozzle pipe (83), the plurality of third spray holes (844) are arranged at equal intervals around the rotation axis of the nozzle (84), and the third spray holes (844) are connected to the spherical cavity (842) and the outer wall of the nozzle (84).

6. The tobacco turnover box cleaning device according to claim 5, characterized in that: The extension direction of the third spray hole (844) is perpendicular to the rotation axis of the nozzle (84). The third spray hole (844) includes an inner interface located on the inner wall of the spherical cavity (842) and an outer spray hole located on the outer wall of the nozzle (84). The plurality of inner interfaces are connected to each other, and the plurality of outer spray holes are isolated from each other.

7. The tobacco turnover box cleaning device according to claim 2 or 3, characterized in that: The support assembly (4) is provided with a distance measuring component, and the distance measuring component is used to detect the position of the nozzle (84) in the X-axis direction.

8. A cleaning method, characterized in that The tobacco turnover box cleaning device according to any one of claims 1 to 7 is used, the turnover box (100) comprises an inner bottom wall and four inner side walls, the inner bottom wall is directly opposite to the opening of the turnover box (100), and the cleaning method comprises the following steps: S100, photographing and identifying the inner bottom wall and the four inner side walls of the turnover box (100) by using a camera (7), and comparing the tobacco adhesion amounts on the four inner side walls; S200, calculate the first total time length of spraying the inner bottom wall and the four inner side walls, if the first total time length is less than the preset time length, execute step S300, if the first total time length is greater than the preset time length, exclude the inner side wall with the least amount of tobacco adhesion and calculate the second total time length of spraying the inner bottom wall and the remaining three inner side walls, if the second total time length is less than the preset time length, execute step S300, if the second total time length is greater than the preset time length, exclude the two inner side walls with the least amount of tobacco adhesion and calculate the second total time length of spraying the inner bottom wall and the remaining two inner side walls a third total time length of the inner wall, if the third total time length is less than the preset time length, executing step S300; if the third total time length is greater than the preset time length, excluding the three inner wall with the least amount of tobacco adhesion and calculating the fourth total time length of spraying the inner bottom wall and the remaining inner wall; if the fourth total time length is less than the preset time length, executing step S300; if the fourth total time length is greater than the preset time length, excluding the four inner wall and calculating the fifth total time length of spraying the inner bottom wall; if the fifth total time length is less than the preset time length, executing step S300; S300, using a nozzle (83) to spray clean the turnover box (100).

9. The cleaning method according to claim 8, characterized in that: Before step S100, the method further includes the following steps: The L-shaped fork arm (31) is driven by a flipping motor to flip around the Y-axis direction to the table of the conveyor (1), and the conveyor (1) pushes the turnover box (100) toward the flipping assembly (3). After the L-shaped fork arm (31) is inserted into the slot of the turnover box (100), the flipping motor drives the L-shaped fork arm (31) to flip around the Y-axis direction to the top of the buffer cabinet (2), and the turnover box (100) pours the tobacco into the buffer cabinet (2).

10. The cleaning method according to claim 8, characterized in that: In step S200, if the fifth total time is greater than the preset time, the inner bottom wall is divided into areas, the tobacco adhesion amounts of various areas of the inner bottom wall are compared, and the area with the largest tobacco adhesion amount is sprayed preferentially. When the spraying time reaches the preset time, the spraying of the turnover box (100) is stopped, and the next turnover box (100) is emptied and sprayed for cleaning.

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