Multi-stage automatic cleaning device

Abstract

The invention relates to the technical field of electroplating cleaning, and provides a multi-stage automatic cleaning device which comprises a cleaning tank and a material roller. The cleaning tank comprises a tank body structure, a plurality of partition plates, a feeding structure, a discharging structure and a plurality of material guiding structures. The partition plates divide the containing space into a plurality of subspaces. The material roller comprises a roller body and a roller supporting assembly, the roller supporting assembly and the roller body are arranged in the corresponding subspaces, the roller body is provided with a feeding end and a discharging end, the feeding end of the first roller body corresponds to the feeding structure, and the discharging end of the last roller body corresponds to the discharging structure. The feeding end and the discharging end of the roller body in the middle position correspond to the material guiding structures respectively. According to the multi-stage automatic cleaning device provided by the invention, the whole multi-stage cleaning process does not need human interference, and automatic material transfer is realized, so that the cleaning efficiency and the cleaning consistency are greatly improved, and meanwhile, the labor cost can also be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating cleaning, and in particular provides a multi-stage automatic cleaning device. Background Art

[0002] In the relevant technical field, the electroplating cleaning process usually includes steps such as degreasing, micro-etching, pre-immersion, electroplating, activation and anti-oxidation, and each step requires necessary water washing.

[0003] Currently, manual cleaning is mostly adopted, that is, the electroplated workpiece to be cleaned is placed in a primary cleaning tank for cleaning. After cleaning, it is taken out and placed in a secondary cleaning tank for cleaning, and so on, to complete a multi-stage cleaning process.

[0004] However, manual cleaning has the problems of low efficiency in loading and unloading materials, high labor costs, inconsistent cleaning effects, and low repeatability. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-stage automatic cleaning device, aiming to solve the problems of low efficiency and poor consistency of cleaning effect in the existing electroplating cleaning process.

[0006] To achieve the above object, the technical solution adopted by the present invention is: The embodiment of the present application provides a multi-stage automatic cleaning device, comprising: A cleaning tank, the cleaning tank comprising a tank body structure having a accommodating space, a plurality of partitions arranged in the accommodating space at intervals along a first direction, a material feeding structure, a material discharging structure and a plurality of material guiding structures, each of the partitions divides the accommodating space into a plurality of subspaces, the material feeding structure is arranged on one end of the tank body structure, the material discharging structure is arranged on the other end of the tank body structure, each of the material guiding structures is arranged on the corresponding partition, and the material feeding structure, the plurality of the material guiding structures and the material discharging structure are arranged side by side along the first direction; and, A material roller, the material roller includes a roller body and a roller support assembly for driving the roller body to rotate around the axis, the extension direction of the rotation center axis of the roller body is parallel to the first direction, the roller support assembly and the roller body are arranged in the corresponding sub-space, the roller body has a feed end and a discharge end, each of the roller bodies is arranged side by side along the first direction, the discharge end of the upper roller body corresponds to the feed end of the lower roller body, and the feed end of the first roller body corresponds to the feed structure, the discharge end of the last roller body corresponds to the discharge structure, and the feed end and the discharge end of the middle roller body correspond to the material guide structure respectively.

[0007] Beneficial effects of the present invention: The multi-stage automatic cleaning device provided by the present invention has the following working process: the object to be cleaned enters the first roller body from the feeding structure, and is cleaned as the first roller body rotates around the axis. After one cleaning is completed, the object to be cleaned enters the middle roller body through the material guide structure for cleaning. After multiple intermediate cleanings are completed, the object to be cleaned enters the last roller body through the material guide structure for final cleaning. Finally, the object that has been cleaned is removed from the last roller body through the discharging structure. The entire multi-stage cleaning process does not require human intervention, and the material is automatically transferred, thereby greatly improving the cleaning efficiency and cleaning consistency, and also reducing labor costs.

[0008] In some embodiments, the drum body includes a drum front section and a drum rear section connected to the drum front section, the drum front section rotates around an axis on the drum support assembly, the drum front section has a first cavity, the drum rear section has a second cavity connected to the first cavity, and a plurality of baffles are arranged in the drum rear section, each of the baffles is arranged circumferentially with the rotation center axis of the drum rear section as the center, and each of the baffles divides the second cavity into a plurality of sub-cavities.

[0009] In some embodiments, the inner wall of the first cavity is provided with a guide member, and the guide member is used to push the object to be cleaned into the second cavity, or, The inner wall of the first cavity is provided with a water hole.

[0010] In some embodiments, a water passage is provided on the front section of the drum, and the water passage is connected to the second cavity.

[0011] In some embodiments, the roller support assembly includes a support base and a roller body rotatably connected to the support base, and the roller body is supported by the front section of the roller.

[0012] In some embodiments, the feeding structure includes a feeding plate, and the feeding plate extends into the first cavity of the drum body at the first position; or The material guide structure comprises a material guide plate, one end of which extends into the second cavity of one of the roller bodies, and the other end of which extends into the first cavity of an adjacent roller body; or The discharging structure includes a discharging plate, and the discharging plate extends into the second cavity of the roller body at the last position.

[0013] In some embodiments, the multi-stage automatic cleaning device includes a driving assembly, and the driving assembly is used to drive each of the drum bodies to rotate around an axis.

[0014] In some embodiments, the driving assembly includes a bracket, a transmission assembly arranged on the bracket, and a driving unit, wherein the bracket is arranged on the trough structure, the output end of the driving unit is connected to the transmission assembly, and the driving unit drives each of the roller bodies to rotate around the axis through the transmission assembly.

[0015] In some embodiments, the bracket includes a plurality of fixed plates arranged at intervals, a connecting plate connected to two adjacent fixed plates, and a connecting rod passing through each of the fixed plates. A slot cover column is provided on the slot body structure, and the connecting rod is pivotally connected to the slot cover column.

[0016] In some embodiments, the transmission assembly includes a driving wheel arranged on one of the fixed plates, a first transmission wheel arranged on each of the fixed plates, a second transmission wheel coaxially arranged with the first transmission wheel, and a third transmission wheel for meshing and connecting with the corresponding first transmission wheel, the driving wheel is connected to the output end of the driving part, each of the third transmission wheels is connected by an axle rod to achieve synchronous rotation, the driving wheel is meshed and connected with one of the third transmission wheels, and the second transmission wheel is meshed and connected with the corresponding roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a multi-stage automatic cleaning device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a material drum of a multi-stage automatic cleaning device provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a drum body of a material drum of a multi-stage automatic cleaning device provided in an embodiment of the present invention; Figure 4 A schematic structural diagram of a drum body of a material drum of a multi-stage automatic cleaning device provided by an embodiment of the present invention from another angle; Figure 5 A schematic diagram of the structure of a cleaning tank of a multi-stage automatic cleaning device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the discharge structure of the cleaning tank of the multi-stage automatic cleaning device provided in an embodiment of the present invention; Figure 7A schematic structural diagram of a material guide structure of a cleaning tank of a multi-stage automatic cleaning device provided in an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a drive assembly of a cleaning tank of a multi-stage automatic cleaning device provided in an embodiment of the present invention.

[0019] Among them, the reference numerals in the figure are: 10. Cleaning tank; 11. Tank structure; 12. Partition plate; 13. Tank cover column; 14. Feeding structure; 141. Feeding plate; 15. Discharging structure; 151. Discharging plate; 16. Material guide structure; 161. Material guide plate; 20. Material roller; 21. Roller body; 21a. Feeding end; 21b. Discharging end; 211. Front section of roller; 2111. Extension part; 2112. Rotating part; 212. Rear section of roller; 211a. First cavity; 212a. Second cavity; 213. Baffle; 214. Guide; 215. Water hole; 216. Water channel; 22. Roller support assembly; 221. Support base; 222. Roller body; 30. Driving assembly; 31. Bracket; 311. Fixing plate; 312. Connecting plate; 313. Linking rod; 32. Transmission assembly; 321. Driving wheel; 322. First transmission wheel; 323. Second transmission wheel; 324. Third transmission wheel; 325. Shaft rod; 33. Driving unit; X, first direction. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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.

[0024] Please refer to Figures 1 to 5 An embodiment of the present application provides a multi-stage automatic cleaning device, including a cleaning tank 10 and a material drum 20.

[0025] The cleaning tank 10 is used to store cleaning solvent or clean water, and the material drum 20 is used to clean the object to be cleaned in the cleaning solvent.

[0026] The cleaning tank 10 includes a tank body structure 11 having a accommodating space, a plurality of partitions 12 arranged in the accommodating space at intervals along a first direction X, a feed structure 14, a discharge structure 15 and a plurality of material guiding structures 16, each partition 12 divides the accommodating space into a plurality of subspaces, the feed structure 14 is arranged on one end of the tank body structure 11, the discharge structure 15 is arranged on the other end of the tank body structure 11, and each material guiding structure 16 is arranged on the corresponding partition 12, and the feed structure 14, the plurality of material guiding structures 16 and the discharge structure 15 are arranged side by side along the first direction X.

[0027] The material roller 20 includes a roller body 21 and a roller support assembly 22 for driving the roller body 21 to rotate around the axis. The extension direction of the rotation center axis of the roller body 21 is parallel to the first direction X. The roller support assembly 22 and the roller body 21 are arranged in corresponding subspaces. The roller body 21 has a feeding end 21a and a discharging end 21b. Each roller body 21 is arranged side by side along the first direction X. The discharging end 21b of the upper roller body 21 corresponds to the feeding end 21a of the lower roller body 21, and the feeding end 21a of the first roller body 21 corresponds to the feeding structure 14, the discharging end 21b of the last roller body 21 corresponds to the discharging structure 15, and the feeding end 21a and the discharging end 21b of the middle roller body 21 correspond to the material guide structure 16 respectively.

[0028] It can be understood that the tank structure 11 is the main structure of the cleaning tank 10, and the first direction X can be the length direction or the width direction of the tank structure 11. The partition 12 is used to divide the accommodating space into multiple subspaces, and each subspace can be connected or disconnected according to actual use requirements. The feeding structure 14 is used for the object to be cleaned to enter the material drum 20, the discharging structure 15 is used for the object to be cleaned to move out of the material drum 20, and the guiding structure 16 is used to achieve the object to be cleaned to flow in or out between two adjacent material drums 20. It should be noted that the feeding structure 14, the multiple guiding structures 16 and the discharging structure 15 are arranged side by side along the first direction X, so the feeding structure 14, the multiple guiding structures 16 and the discharging structure 15 are aligned, or they can be arranged in a staggered manner within a certain error range.

[0029] The drum body 21 is the main structure of the material drum 20, and is used to store the objects to be cleaned during the cleaning stage, and the drum support assembly 22 is used to support the drum body 21 and ensure that the drum body 21 rotates around the axis. In terms of arrangement, each drum body 21 is arranged in a corresponding subspace, that is, one drum body 21 is arranged in one subspace, and each drum body 21 is arranged in the same direction, that is, the discharge end 21b of the upper drum body 21 corresponds to the feed end 21a of the lower drum body 21.

[0030] During use, the object to be cleaned enters the first roller body 21 from the feeding structure 14 and is cleaned as the first roller body 21 rotates around the axis. After completing one cleaning, the object to be cleaned enters the middle roller body 21 through the material guiding structure 16 for cleaning. After completing multiple intermediate cleanings, the object to be cleaned enters the last roller body 21 through the material guiding structure 16 for final cleaning. Finally, the cleaned object is removed from the last roller body 21 through the discharging structure 15.

[0031] The multi-stage automatic cleaning device provided by the present invention does not require human intervention in the entire multi-stage cleaning process and realizes automatic material transfer, thereby greatly improving cleaning efficiency and cleaning consistency, and also reducing labor costs.

[0032] Please refer to Figures 2 to 4In some embodiments, the drum body 21 includes a drum front section 211 and a drum rear section 212 connected to the drum front section 211, the drum front section 211 rotates around the axis on the drum support assembly 22, the drum front section 211 has a first cavity 211a, the drum rear section 212 has a second cavity 212a connected to the first cavity 211a, and a plurality of baffles 213 are arranged in the drum rear section 212, each baffle 213 is arranged at intervals along the circumferential direction with the rotation center axis of the drum rear section 212 as the center, and each baffle 213 divides the second cavity 212a into a plurality of sub-cavities.

[0033] It can be understood that the drum front section 211 and the drum rear section 212 are two parts of the drum body 21, and the object to be cleaned is cleaned in the first cavity 211a of the drum front section 211 and the second cavity 212a of the drum rear section 212. Here, the drum front section 211 rotates around the axis on the drum support assembly 22, and its shape should be cylindrical, and the outer structure of the drum rear section 212 can also be cylindrical or other shapes, but both should be rotating body structures to meet the material transmission requirements.

[0034] During actual use, the object to be cleaned enters the first cavity 211a from the feeding end 21a, and gradually moves into the second cavity 212a as the front section 211 of the drum rotates around the axis. When the object to be cleaned enters the second cavity 212a, it should fall into the sub-cavity formed by the two adjacent baffles 213, and continue to rotate around the axis with the rear section 212 of the drum until it moves out from the discharging end 21b.

[0035] Alternatively, if Figure 3 As shown, the front section 211 of the drum is cylindrical, and the rear section 212 of the drum is a regular polygon, and the two are coaxially arranged, and the inner diameter of the rear section 212 of the drum is larger than the inner diameter of the front section 211 of the drum, that is, the radial dimension of the second cavity 212a is larger than the radial dimension of the first cavity 211a. In this way, when rotating around the axis, the object to be cleaned stays in the second cavity 212a for a longer time, that is, the cleaning time is longer.

[0036] Alternatively, if Figure 4 As shown, the front section 211 of the drum includes an extension portion 2111 and a rotating portion 2112 sequentially formed along the first direction X, wherein the inner space of the extension portion 2111 and the inner space of the rotating portion 2112 are connected to form a first cavity 211a, the extension portion 2111 is used to correspond to the feeding structure 14 or the material guiding structure 16, and the rotating portion 2112 rotates around the axis on the drum support assembly 22. In addition, the radial dimension of the extension portion 2111 is smaller than the dimension of the rotating portion 2112. Since the feeding end 21a is located at the end of the extension portion 2111 away from the rotating portion 2112, the size of the feeding end 21a can be reduced to reduce the object to be cleaned from rolling out of the feeding end 21a.

[0037] Please refer to Figure 4 In some embodiments, a guide member 214 is provided on the inner wall of the first cavity 211a, and the guide member 214 is used to push the object to be cleaned into the second cavity 212a.

[0038] It can be understood that the guide member 214 is used to assist the object to be cleaned to enter the first cavity 211a and the second cavity 212a. Here, the structural types of the guide member 214 include but are not limited to guide ribs, guide rods, etc.

[0039] The inner wall of the first cavity 211 a is provided with a water hole 215 , and the water hole 215 is used to increase the total amount of clean water or clean water in the first cavity 211 a to improve the cleaning effect.

[0040] Please refer to Figure 4 In some embodiments, a water passage 216 is provided on the drum front section 211 , and the water passage 216 is connected to the second cavity 212 a .

[0041] It can be understood that the function of the water passage 216 is to increase the total amount of clean water or clean water contained in the second cavity 212a.

[0042] Alternatively, if Figure 4 As shown, the water passage 216 may be opened on the circumferential side wall of the drum front section 211 , or may be opened on the end of the drum front section 211 .

[0043] Please refer to Figure 2 In some embodiments, the roller support assembly 22 includes a support base 221 and a roller body 222 rotatably connected to the support base 221 , and the roller body 222 is supported by the roller front section 211 .

[0044] It can be understood that the support base 221 is the main structure of the roller support assembly 22, and the roller body 222 supports the roller front section 211. Optionally, the number of the roller support assemblies 22 is two to ensure the stability of the roller front section 211 during the rotation process around the axis.

[0045] Please refer to Figures 5 to 7 In some embodiments, the feeding structure 14 includes a feeding plate 141, and the feeding plate 141 extends into the first cavity 211a of the first roller body 21; or The material guide structure 16 includes a material guide plate 161, one end of the material guide plate 161 extends into the second cavity 212a of one of the roller bodies 21, and the other end of the material guide plate 161 extends into the first cavity 211a of the adjacent roller body 21; or, The discharging structure 15 includes a discharging plate 151 , and the discharging plate 151 extends into the second cavity 212 a of the drum body 21 at the last position.

[0046] It can be understood that the feed plate 141 , the guide plate 161 and the discharge plate 151 should be arranged at an angle to allow the objects to be cleaned to enter the drum body 21 and to be transferred from one drum body 21 to another drum body 21 .

[0047] Please refer to Figure 1 and Figure 8 In some embodiments, the multi-stage automatic cleaning device includes a driving assembly 30, and the driving assembly 30 is used to drive each roller body 21 to rotate around an axis.

[0048] It can be understood that the structural form of the driving assembly 30 is not limited, as long as the rotation of each roller body 21 around the axis can be achieved.

[0049] Optionally, the driving assembly 30 is a plurality of independent motors, each of which is used to independently drive the corresponding drum body 21 to rotate around an axis, so as to realize independent rotation of the drum body 21 .

[0050] Optionally, the driving assembly 30 may also be a combination of a motor and a transmission gear, that is, a motor is used to achieve synchronous rotation of each roller body 21.

[0051] Please refer to Figure 8 In some embodiments, the driving assembly 30 includes a bracket 31, a transmission assembly 32 disposed on the bracket 31, and a driving unit 33. The bracket 31 is disposed on the trough structure 11, and the output end of the driving unit 33 is connected to the transmission assembly 32. In addition, the driving unit 33 drives each roller body 21 to rotate around the axis through the transmission assembly 32.

[0052] It can be understood that the bracket 31 is used to provide support and bearing for the transmission assembly 32 and the driving part 33. The transmission assembly 32 can be a plurality of transmission teeth, and the driving part 33 can be a motor. In this way, the synchronous rotation of each roller body 21 can be achieved using a driving part 33 and a transmission assembly 32.

[0053] Please refer to Figure 8 In some embodiments, the bracket 31 includes a plurality of fixed plates 311 spaced apart from each other, a connecting plate 312 connected to two adjacent fixed plates 311 , and a connecting rod 313 passing through each fixed plate 311 . A slot cover column 13 is provided on the slot body structure 11 , and the connecting rod 313 is pivotally connected to the slot cover column 13 .

[0054] It can be understood that the fixed plate 311 is used to support and carry the transmission assembly 32, and the connecting plate 312 connects the fixed plates 311 to form a whole. At the same time, the connecting rod 313 is used to be pivotally connected to the slot cover column 13 to meet the rotation and opening and closing of the bracket 31 relative to the slot body structure 11. In this way, the power shutdown of the rotation of each roller body 21 around the axis can be achieved by rotating the opening and closing bracket 31.

[0055] Please refer to Figure 8 In some embodiments, the transmission assembly 32 includes a driving wheel 321 disposed on one of the fixed plates 311, a first transmission wheel 322 disposed on each of the fixed plates 311, a second transmission wheel 323 coaxially arranged with the first transmission wheel 322, and a third transmission wheel 324 for meshing and connecting with the corresponding first transmission wheel 322, the driving wheel 321 is connected to the output end of the driving unit 33, each third transmission wheel 324 is connected through a shaft to achieve synchronous rotation, the driving wheel 321 is meshed and connected with one of the third transmission wheels 324, and the second transmission wheel 323 is meshed and connected with the corresponding drum body 21.

[0056] It can be understood that the driving part 33 is used to drive the driving wheel 321 to rotate, and the driving wheel 321 drives one of the third transmission wheels 324 to rotate around the axis, and, driven by the shaft, the third transmission wheels 324 can rotate synchronously. In this way, each third transmission wheel 324 drives the corresponding first transmission wheel 322 to rotate around the axis, and finally, the second transmission wheel 323 drives the corresponding drum body 21 to rotate around the axis.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 present invention.

Claims

1. A multi-stage automatic cleaning device, characterized in that: include: A cleaning tank, the cleaning tank comprising a tank body structure having a accommodating space, a plurality of partitions arranged in the accommodating space at intervals along a first direction, a material feeding structure, a material discharging structure and a plurality of material guiding structures, each of the partitions divides the accommodating space into a plurality of subspaces, the material feeding structure is arranged on one end of the tank body structure, the material discharging structure is arranged on the other end of the tank body structure, each of the material guiding structures is arranged on the corresponding partition, and the material feeding structure, the plurality of the material guiding structures and the material discharging structure are arranged side by side along the first direction; and, A material roller, the material roller includes a roller body and a roller support assembly for driving the roller body to rotate around the axis, the extension direction of the rotation center axis of the roller body is parallel to the first direction, the roller support assembly and the roller body are arranged in the corresponding sub-space, the roller body has a feed end and a discharge end, each of the roller bodies is arranged side by side along the first direction, the discharge end of the upper roller body corresponds to the feed end of the lower roller body, and the feed end of the first roller body corresponds to the feed structure, the discharge end of the last roller body corresponds to the discharge structure, and the feed end and the discharge end of the middle roller body correspond to the material guide structure respectively.

2. The multi-stage automatic cleaning device according to claim 1, characterized in that: The drum body includes a drum front section and a drum rear section connected to the drum front section, the drum front section rotates around an axis on the drum support assembly, the drum front section has a first cavity, the drum rear section has a second cavity connected to the first cavity, and a plurality of baffles are arranged in the drum rear section, each of the baffles is arranged at intervals along the circumferential direction with the rotation center axis of the drum rear section as the center, and each of the baffles divides the second cavity into a plurality of sub-cavities.

3. The multi-stage automatic cleaning device according to claim 2, characterized in that: The inner wall of the first cavity is provided with a guide member, and the guide member is used to push the object to be cleaned into the second cavity, or, The inner wall of the first cavity is provided with a water hole.

4. The multi-stage automatic cleaning device according to claim 2, characterized in that: A water passage is provided on the front section of the drum, and the water passage is communicated with the second cavity.

5. The multi-stage automatic cleaning device according to claim 2, characterized in that: The roller support assembly comprises a support base and a roller body rotatably connected to the support base, and the roller body is supported on the front section of the roller.

6. The multi-stage automatic cleaning device according to claim 2, characterized in that: The feeding structure comprises a feeding plate, and the feeding plate extends into the first cavity of the first roller body; or The material guide structure comprises a material guide plate, one end of which extends into the second cavity of one of the roller bodies, and the other end of which extends into the first cavity of an adjacent roller body; or The discharging structure includes a discharging plate, and the discharging plate extends into the second cavity of the roller body at the last position.

7. The multi-stage automatic cleaning device according to any one of claims 1 to 6, characterized in that: The multi-stage automatic cleaning device comprises a driving assembly, and the driving assembly is used to drive each of the roller bodies to rotate around an axis.

8. The multi-stage automatic cleaning device according to claim 7, characterized in that: The driving assembly includes a bracket, a transmission assembly arranged on the bracket, and a driving part. The bracket is arranged on the trough structure, the output end of the driving part is connected to the transmission assembly, and the driving part drives each of the roller bodies to rotate around the axis through the transmission assembly.

9. The multi-stage automatic cleaning device according to claim 8, characterized in that: The bracket includes a plurality of fixed plates arranged at intervals, a connecting plate connected to two adjacent fixed plates, and a link rod passing through each of the fixed plates. A slot cover column is provided on the slot body structure, and the link rod is pivotally connected to the slot cover column.

10. The multi-stage automatic cleaning device according to claim 9, characterized in that: The transmission assembly includes a driving wheel arranged on one of the fixed plates, a first transmission wheel arranged on each of the fixed plates, a second transmission wheel coaxially arranged with the first transmission wheel, and a third transmission wheel for meshing and connecting with the corresponding first transmission wheel, the driving wheel is connected to the output end of the driving part, each of the third transmission wheels is connected by a shaft rod to achieve synchronous rotation, the driving wheel is meshed and connected with one of the third transmission wheels, and the second transmission wheel is meshed and connected with the corresponding roller body.

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