Cleaning equipment

Abstract

The utility model provides cleaning equipment which comprises a plurality of cleaning units, each cleaning unit is provided with a first liquid supply pipeline, the first end of each first liquid supply pipeline is connected with the corresponding cleaning unit, and the cleaning units comprise an upstream cleaning unit located on the upstream and a downstream cleaning unit located on the downstream; the first liquid supply pipeline of the downstream cleaning unit is provided with the pump; the upstream cleaning unit and the downstream cleaning unit are correspondingly provided with the liquid storage tanks, the liquid storage tanks are suitable for storing liquid discharged by the upstream cleaning unit, and the liquid storage tanks communicate with the second end of the first liquid supply pipeline of the downstream cleaning unit; the first end of the connecting pipeline is connected with the first liquid supply pipeline of the upstream cleaning unit, and the second end of the connecting pipeline is connected with the first liquid supply pipeline of the downstream cleaning unit.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell manufacturing, and more specifically, to a cleaning device. Background Art

[0002] In the production of photovoltaic cells, the cleaning process of the panel and the glass substrate mainly relies on multiple cleaning processes. However, the existing cleaning equipment cannot reuse ultrapure water multiple times, and a large amount of water resources will be consumed during the cleaning process, resulting in waste. Moreover, the existing equipment lacks an effective self-cleaning mechanism, which is prone to the growth of microorganisms and affects the cleaning quality. Summary of the Utility Model

[0003] The utility model provides a new technical solution for a cleaning device, which can at least solve the technical problem that the existing cleaning equipment consumes a large amount of water resources during the cleaning process.

[0004] According to a first aspect of the utility model, a cleaning device is provided, including: a plurality of cleaning units, each of the cleaning units is provided with a first liquid supply pipeline, a first end of the first liquid supply pipeline is connected to the cleaning unit, and the plurality of cleaning units include an upstream cleaning unit located upstream and a downstream cleaning unit located downstream; a pump, the first liquid supply pipeline of the downstream cleaning unit is provided with the pump; a liquid storage tank, the upstream cleaning unit and the downstream cleaning unit are correspondingly provided with the liquid storage tank, the liquid storage tank is adapted to store the liquid discharged from the upstream cleaning unit, and the liquid storage tank is communicated with a second end of the first liquid supply pipeline of the downstream cleaning unit; a connecting pipeline, a first end of the connecting pipeline is connected to the first liquid supply pipeline of the upstream cleaning unit, and a second end of the connecting pipeline is connected to the first liquid supply pipeline of the downstream cleaning unit; wherein, the connecting pipeline can be controllably communicated with the first liquid supply pipeline of the upstream cleaning unit and the first liquid supply pipeline of the downstream cleaning unit, a first end of the connecting pipeline can be controllably communicated with a first end of the first liquid supply pipeline of the upstream cleaning unit and disconnected from a second end of the first liquid supply pipeline of the upstream cleaning unit, and a second end of the connecting pipeline can be controllably communicated with a second end of the first liquid supply pipeline of the downstream cleaning unit and disconnected from a first end of the first liquid supply pipeline of the downstream cleaning unit.

[0005] Optionally, the cleaning device further includes: a first valve body, the first valve body is arranged on the first liquid supply pipeline connected to the first end of the connecting pipeline, and the first valve body is located between the connecting pipeline and the second end of the first liquid supply pipeline; a second valve body, the second valve body is arranged on the connecting pipeline; a third valve body, the third valve body is arranged on the first liquid supply pipeline connected to the second end of the connecting pipeline, and the third valve body is located between the connecting pipeline and the first end of the first liquid supply pipeline.

[0006] Optionally, two adjacent cleaning units include the upstream cleaning unit and the downstream cleaning unit, and a liquid storage tank is correspondingly arranged for each two adjacent cleaning units.

[0007] Optionally, the first end of the connecting pipeline is connected to the first liquid supply pipeline of any one of the upstream cleaning units, and the second end of the connecting pipeline is connected to the first liquid supply pipeline of the downstream cleaning unit.

[0008] Optionally, a plurality of cleaning units include a last cleaning unit arranged at the end and a first cleaning unit at the first place. The last cleaning unit is the upstream cleaning unit, and the first cleaning unit is the downstream cleaning unit. The first end of the connecting pipeline is connected to the first liquid supply pipeline of the last cleaning unit, and the second end of the connecting pipeline is connected to the first liquid supply pipeline of the first cleaning unit.

[0009] Optionally, the cleaning unit is provided with a cleaning tank adapted to collect the liquid discharged from the cleaning unit. The cleaning device further includes: a liquid return pipeline. Each cleaning unit is provided with the liquid return pipeline, and the cleaning tank of the upstream cleaning unit is communicated with the corresponding liquid storage tank through the liquid return pipeline.

[0010] Optionally, the liquid return pipeline of the first cleaning unit can be controllably communicated with the cleaning tank of the first cleaning unit and the first liquid storage tank.

[0011] Optionally, the cleaning device further includes: a second liquid supply pipeline. Each liquid storage tank is provided with the second liquid supply pipeline. The first end of the second liquid supply pipeline is connected to the liquid storage tank, and the second liquid supply pipeline can controllably supply liquid to the liquid storage tank; and / or,

[0012] a third liquid supply pipeline. Each first liquid supply pipeline of the downstream cleaning units is provided with the third liquid supply pipeline. The first end of the third liquid supply pipeline is connected to the corresponding first liquid supply pipeline, and the third liquid supply pipeline can controllably supply liquid to the downstream cleaning unit.

[0013] Optionally, the first end of the second liquid supply pipeline can be controllably communicated with the third liquid supply pipeline and disconnected from the second end of the third liquid supply pipeline.

[0014] Optionally, at least one of the liquid storage tanks is provided with a liquid medicine adding port.

[0015] Optionally, the cleaning device further includes: a first liquid discharge pipeline. The first end of the first liquid discharge pipeline is arranged at the first cleaning unit, and the second end of the first liquid discharge pipeline can controllably discharge liquid.

[0016] Optionally, the cleaning device further includes: a second liquid discharge pipeline, each of the liquid storage tanks is provided with the second liquid discharge pipeline, a first end of the second liquid discharge pipeline is disposed in the liquid storage tank, and a second end of the second liquid discharge pipeline can controllably discharge liquid.

[0017] Optionally, a first sub-pipeline and a second sub-pipeline are respectively provided at a second end of the first liquid discharge pipeline and the second liquid discharge pipeline, and the first sub-pipeline and the second sub-pipeline can respectively controllably discharge liquid.

[0018] Optionally, the cleaning device further includes: an overflow pipe, a first end of the overflow pipe is disposed in the liquid storage tank, and the first end of the overflow pipe is spaced apart from a bottom surface and a top of the interior of the liquid storage tank, a second end of the overflow pipe passes through a bottom of the liquid storage tank, and the second end of the overflow pipe is adapted to discharge liquid higher than the first end of the overflow pipe.

[0019] Optionally, a plurality of the cleaning units are arranged in a first direction, and the cleaning unit includes: a cleaning tank, the cleaning tank is provided with a cleaning channel penetrating along the first direction; a spraying assembly, the spraying assembly is disposed in the cleaning tank, the spraying assembly is provided with a plurality of nozzles on both sides of the cleaning channel, and a liquid inlet end of the spraying assembly is connected to a first end of the first liquid supply pipeline.

[0020] Optionally, the cleaning device further includes: a roller-type transmission system, the roller-type transmission system is disposed on a plurality of the cleaning units, and the roller-type transmission system is adapted to convey a product from a downstream cleaning unit towards an upstream cleaning unit in the cleaning channel.

[0021] According to the cleaning device of the present invention, the cleaning liquid discharged from the upstream cleaning unit is collected and supplied to the downstream cleaning unit for use through the provided liquid storage tank, which greatly improves the utilization rate of the cleaning liquid while ensuring the cleaning effect, reduces the consumption of fresh cleaning liquid and the discharge of wastewater, and is energy-saving and environmentally friendly; and through the provided connection pipeline, part of the structure of the cleaning device can form a circulating flow path with the upstream cleaning unit, which is beneficial to the self-cleaning of the cleaning device, can effectively avoid the pollution of the cleaned product, and can ensure the product yield.

[0022] Other features and advantages of the present invention will become clear through the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0023] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0024] Figure 1It is a schematic structural diagram of a cleaning device according to an embodiment provided by the present utility model;

[0025] Figure 2 It is a schematic structural diagram of a cleaning device according to another embodiment provided by the present utility model;

[0026] Figure 3 It is a partial schematic structural diagram of a cleaning device according to an embodiment provided by the present utility model.

[0027] Reference numerals

[0028] c, glass substrate;

[0029] 100, cleaning device;

[0030] 10, cleaning unit;

[0031] 11, first liquid supply pipeline; 111, first valve body; 112, third valve body; 113, flowmeter; 114, filter;

[0032] 12, pump; 13, cleaning tank;

[0033] 14, liquid return pipeline; 141, fourth valve body;

[0034] 15, spraying assembly; 151, nozzle;

[0035] 20, liquid storage tank; 21, liquid medicine adding port; 22, drain pipe; 23, eighth valve body;

[0036] 30, connecting pipeline; 31, second valve body;

[0037] 40, second liquid supply pipeline; 41, fifth valve body;

[0038] 50, third liquid supply pipeline; 51, sixth valve body; 52, seventh valve body;

[0039] 60, first drain pipeline; 61, ninth valve body; 62, first sub - pipe; 63, second sub - pipe; 64, eleventh valve body;

[0040] 70, second drain pipeline; 71, tenth valve body;

[0041] 80, roller - type transmission system. Detailed implementation manners

[0042] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model.

[0043] The following description of at least one exemplary embodiment is merely illustrative and in no way restrictive of the present utility model and its application or use.

[0044] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification.

[0045] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0046] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

[0047] First, the cleaning device 100 according to an embodiment of the present utility model will be specifically described below with reference to the accompanying drawings.

[0048] As Figures 1 to 3 shown, the cleaning device 100 according to an embodiment of the present utility model includes a plurality of cleaning units 10, a pump 12, a liquid storage tank 20, and a connecting pipeline 30.

[0049] Specifically, each cleaning unit 10 is provided with a first liquid supply pipeline 11. The first end of the first liquid supply pipeline 11 is connected to the cleaning unit 10. The plurality of cleaning units 10 include an upstream cleaning unit located upstream and a downstream cleaning unit located downstream. A pump 12 is provided on the first liquid supply pipeline 11 of the downstream cleaning unit. A liquid storage tank 20 is correspondingly provided between the upstream cleaning unit and the downstream cleaning unit. The liquid storage tank 20 is adapted to store the liquid discharged from the upstream cleaning unit. The liquid storage tank 20 is communicated with the second end of the first liquid supply pipeline 11 of the downstream cleaning unit. The first end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of the upstream cleaning unit, and the second end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of the downstream cleaning unit; wherein, the connecting pipeline 30 can be controllably communicated with the first liquid supply pipeline 11 of the upstream cleaning unit and the first liquid supply pipeline 11 of the downstream cleaning unit. The first end of the connecting pipeline 30 can be controllably communicated with the first end of the first liquid supply pipeline 11 of the upstream cleaning unit and disconnected from the second end of the first liquid supply pipeline 11 of the upstream cleaning unit. The second end of the connecting pipeline 30 can be controllably communicated with the second end of the first liquid supply pipeline 11 of the downstream cleaning unit and disconnected from the first end of the first liquid supply pipeline 11 of the downstream cleaning unit.

[0050] In other words, as Figures 1 to 3As shown, the cleaning device 100 according to an embodiment of the present invention mainly includes a cleaning unit 10, a pump 12, a liquid storage tank 20, and a connecting pipeline 30. Among them, the cleaning unit 10 is provided with a first liquid supply pipeline 11. A cleaning liquid (for example, ultrapure water) can enter the cleaning unit 10 from the first liquid supply pipeline 11, and the cleaning unit 10 can spray out the cleaning liquid to clean the product. The number of cleaning units 10 is two or more. Hereinafter, two cleaning units 10 will be taken as an example for specific description.

[0051] The two cleaning units 10 include an upstream cleaning unit located upstream and a downstream cleaning unit located downstream. During use, the upstream cleaning unit is located upstream of the downstream cleaning unit. The upstream cleaning unit and the downstream cleaning unit can correspond to a liquid storage tank 20. Through this liquid storage tank 20, the liquid discharged from the upstream cleaning unit can be stored. The liquid outlet of the liquid storage tank 20 is communicated with the first liquid supply pipeline 11 of the downstream cleaning unit, and the first liquid supply pipeline 11 is provided with a pump 12 (for example, a water pump). Thus, through the first liquid supply pipeline 11, the liquid in the liquid storage tank 20 can be conveyed to the downstream cleaning unit to supply liquid to the downstream cleaning unit.

[0052] The first end of the connecting pipeline 30 can be connected to the middle position of the first liquid supply pipe on the upstream cleaning unit, and the second end of the connecting pipeline 30 can be connected to the middle position of the first liquid supply pipeline 11 of the downstream cleaning unit. The connecting pipeline 30 can be controllably communicated with the first liquid supply pipeline 11 of the upstream cleaning unit and the first liquid supply pipeline 11 of the downstream cleaning unit. The specific structure of the connecting pipeline 30 includes but is not limited to the following situations:

[0053] Situation 1: A valve body is provided at the first end or the second end of the connecting pipeline 30, and the on-off of the end of the connecting pipeline 30 is controlled through this valve body;

[0054] Situation 2: A valve body is provided in the middle part of the connecting pipeline 30, and the on-off of the first end and the second end of the connecting pipeline 30 is controlled through this valve body.

[0055] Moreover, the first end of the connecting pipeline 30 can be controllably communicated with the first end of the first liquid supply pipeline 11 of the upstream cleaning unit through the corresponding valve body and disconnected from the second end of the first liquid supply pipeline 11 of the upstream cleaning unit; the second end of the connecting pipeline 30 can be controllably communicated with the second end of the first liquid supply pipeline 11 of the downstream cleaning unit through the corresponding valve body and disconnected from the first end of the first liquid supply pipeline 11 of the downstream cleaning unit.

[0056] Thus, a circulating flow path can be formed by the upstream cleaning unit, a part of the first liquid supply pipeline 11 of the upstream cleaning unit, the liquid storage tank 20 corresponding to the upstream cleaning unit, a part of the first liquid supply pipeline 11 connected to the liquid storage tank 20, and the connecting pipeline 30, which is beneficial to cleaning each part constituting the circulating flow path.

[0057] When the cleaning device 100 according to an embodiment of the present invention cleans a product (e.g., a glass substrate c), the first liquid supply pipeline 11 supplies liquid to the cleaning unit 10. The connecting pipeline 30 does not connect the first liquid supply pipeline 11 of the upstream cleaning unit and the first liquid supply pipeline 11 of the downstream cleaning unit. The product can move from the downstream cleaning unit to the upstream cleaning unit. The downstream cleaning unit first cleans the product, and after the downstream cleaning unit finishes cleaning, the upstream cleaning unit then cleans the product.

[0058] In this embodiment, since the product located in the downstream cleaning unit is relatively dirty, the liquid discharged from the upstream cleaning unit can be used to initially clean the product, so that the product can be gradually cleaned, ensuring the cleaning effect of the product, and enabling the reuse of water resources, thus making full use of water resources.

[0059] As Figure 1 and Figure 2 shown, when the cleaning device 100 according to an embodiment of the present invention performs self-cleaning, a cleaning solution required for self-cleaning is added to the liquid storage tank 20. The connecting pipeline 30 connects the first liquid supply pipeline 11 of the upstream cleaning unit and the first liquid supply pipeline 11 of the downstream cleaning unit. Moreover, the first end of the connecting pipeline 30 is connected to the first end of the first liquid supply pipeline 11 of the upstream cleaning unit and is disconnected from the second end of the first liquid supply pipeline 11 of the upstream cleaning unit. The second end of the connecting pipeline 30 is connected to the second end of the first liquid supply pipeline 11 of the downstream cleaning unit and is disconnected from the first end of the first liquid supply pipeline 11 of the downstream cleaning unit. By means of the pump 12, the cleaning solution can be circulated in the circulation flow path, which is beneficial to realizing the self-cleaning of part of the cleaning device 100.

[0060] Thus, for the cleaning device 100 provided according to this embodiment, the cleaning liquid discharged from the upstream cleaning unit is collected by the provided liquid storage tank 20 and supplied to the downstream cleaning unit for use, which greatly improves the utilization rate of the cleaning liquid while ensuring the cleaning effect, reduces the consumption of fresh cleaning liquid and the discharge of waste water, saving energy and being environmentally friendly; and through the provided connecting pipeline 30, part of the structure of the cleaning device 100 can form a circulation flow path with the upstream cleaning unit, which is beneficial to the self-cleaning of the cleaning device 100, can effectively avoid the pollution of the cleaned product, and can ensure the product yield.

[0061] In some alternative examples of the present invention, the liquid storage tank 20 is located below the cleaning unit 10, so as to facilitate the collection of the liquid discharged from the upstream cleaning unit.

[0062] In addition, when the position of the liquid storage tank 20 is relatively high, devices such as a water pump can also be used to transport the liquid discharged from the upstream cleaning unit to the liquid storage tank 20, which will not be elaborated in this embodiment.

[0063] According to an embodiment of the present utility model, a liquid level gauge is respectively provided in each liquid storage tank 20, and the liquid level gauge is electrically connected to the control unit of the cleaning device 100.

[0064] In some embodiments of the present utility model, the cleaning device 100 further includes: a first valve body 111, a second valve body 31, and a third valve body 112. The first valve body 111 is provided in a first liquid supply pipeline 11 connected to the first end of the connection pipeline 30, and the first valve body 111 is located between the connection pipeline 30 and the second end of the first liquid supply pipeline 11. The second valve body 31 is provided in the connection pipeline 30, and the third valve body 112 is provided in the first liquid supply pipeline 11 connected to the second end of the connection pipeline 30, and the third valve body 112 is located between the connection pipeline 30 and the first end of the first liquid supply pipeline 11.

[0065] That is to say, as Figure 1 and Figure 2 shown, the first liquid supply pipeline 11 connected to the first end of the connection pipeline 30 is provided with a first valve body 111, and the first valve body 111 is located between the first end of the connection pipeline 30 and the second end of the first liquid supply pipeline 11. Thus, the connection and disconnection between the second end of the first liquid supply pipeline 11, the first end of the connection pipeline 30, and the first end of the first liquid supply pipeline 11 can be controlled through the first valve body 111, so as to realize that the first end of the connection pipeline 30 can be controllably connected to the first end of the first liquid supply pipeline 11 of the upstream cleaning unit and disconnected from the second end of the first liquid supply pipeline 11 of the upstream cleaning unit.

[0066] As Figure 1 and Figure 2 shown, the middle part of the connection pipeline 30 is provided with a second valve body 31, and the connection and disconnection between the first end and the second end of the connection pipeline 30 can be controlled through the second valve body 31, so as to realize that the connection pipeline 30 can be controllably connected to the first liquid supply pipeline 11 of the upstream cleaning unit and the first liquid supply pipeline 11 of the downstream cleaning unit.

[0067] As Figure 1 and Figure 2 shown, the first liquid supply pipeline 11 connected to the second end of the connection pipeline 30 is provided with a third valve body 112, and the third valve body 112 is located between the second end of the connection pipeline 30 and the first end of the first liquid supply pipeline 11. Thus, the connection and disconnection between the first end of the first liquid supply pipeline 11 and the second end of the connection pipeline 30 can be controlled through the third valve body 112, so as to realize that the second end of the connection pipeline 30 can be controllably connected to the second end of the first liquid supply pipeline 11 of the downstream cleaning unit and disconnected from the first end of the first liquid supply pipeline 11 of the downstream cleaning unit.

[0068] In addition, the cleaning device 100 can also achieve corresponding functions through a three-way valve, which will not be elaborated in this embodiment.

[0069] According to an embodiment of the present utility model, two adjacent cleaning units 10 include an upstream cleaning unit and a downstream cleaning unit, and a liquid storage tank 20 is correspondingly arranged for each two adjacent cleaning units 10.

[0070] Specifically, as Figure 1 and Figure 2 shown, the number of cleaning units 10 is, for example, but not limited to, 3, 4, 5, etc. Two adjacent cleaning units 10 include an upstream cleaning unit and a downstream cleaning unit, and at least one liquid storage tank 20 is correspondingly arranged for all adjacent two cleaning units 10. That is, one liquid storage tank 20 is arranged between the first cleaning unit 10 and the second cleaning unit 10, one liquid storage tank 20 is correspondingly arranged between the second cleaning unit 10 and the third cleaning unit 10, and one liquid storage tank 20 is correspondingly arranged between the third cleaning unit 10 and the fourth cleaning unit 10.

[0071] Thus, through the arranged multiple liquid storage tanks 20, the cleaning device 100 can reuse the cleaning liquid multiple times, further improving the utilization rate of the cleaning liquid while ensuring the cleaning effect, reducing the consumption of fresh cleaning liquid and the discharge of waste water, and saving energy and protecting the environment.

[0072] In some alternative examples of the present utility model, the first end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of any upstream cleaning unit, and the second end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of the downstream cleaning unit.

[0073] That is to say, as Figure 1 and Figure 2 shown, the cleaning device 100 has multiple groups of adjacent cleaning units 10. The first end of the connecting pipeline 30 can be connected to the first liquid supply pipeline 11 of the upstream cleaning unit in the a-th group of adjacent cleaning units 10, and the second end of the connecting pipeline 30 can be connected to the first liquid supply pipeline 11 of the downstream cleaning unit in the b-th group of adjacent cleaning units 10, where a ≤ b. Thus, b - a + 1 cleaning units 10 can be in the circulating flow path formed by the connecting pipeline 30.

[0074] In some embodiments of the present utility model, the multiple cleaning units 1 include a last cleaning unit arranged at the end and a first cleaning unit located at the head. The last cleaning unit is the upstream cleaning unit, and the first cleaning unit is the downstream cleaning unit. The first end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of the last cleaning unit, and the second end of the connecting pipeline 30 is connected to the first liquid supply pipeline 11 of the first cleaning unit.

[0075] Specifically, as Figure 1 and Figure 2As shown, a plurality of cleaning units 10 include a last cleaning unit arranged at the end and a first cleaning unit at the front. Among them, the last cleaning unit is an upstream cleaning unit located at the most upstream, and the first cleaning unit is a downstream cleaning unit located at the most downstream. The first end of the connecting pipeline 30 can be connected to the first liquid supply pipeline 11 of the last cleaning unit, and the second end of the connecting pipeline 30 can be connected to the first liquid supply pipeline 11 of the first cleaning unit.

[0076] Thus, excluding the first cleaning unit, the remaining cleaning units 10 and the liquid storage tank 20 are all in the circulating flow path formed by the connecting pipeline 30. When the cleaning device 100 performs self-cleaning, it is beneficial to clean the remaining cleaning units 10 and the liquid storage tank 20 excluding the first cleaning unit, which can further avoid the pollution of the cleaning products and ensure the product yield.

[0077] According to an embodiment of the present invention, the cleaning unit 10 is provided with a cleaning tank 13. The cleaning tank 13 is suitable for collecting the liquid discharged from the cleaning unit 10. The cleaning device 100 further includes: a liquid return pipeline 14. Each cleaning unit 10 is provided with a liquid return pipeline 14, and the cleaning tank 13 of the upstream cleaning unit is communicated with the corresponding liquid storage tank 20 through the liquid return pipeline 14.

[0078] That is to say, as Figure 1 and Figure 2 shown, the cleaning unit 10 has a cleaning tank 13. The liquid discharged from the cleaning unit 10 can be collected through the cleaning tank 13. And each cleaning tank 13 is provided with a liquid discharge port. The liquid discharge port of each cleaning tank 13 is provided with a liquid return pipeline 14. The first end of the liquid return pipeline 14 is fixedly connected to the cleaning tank 13, and the second end of the liquid return pipeline 14 is fixedly connected and conducted with the cleaning tank 13 and the corresponding liquid storage tank 20. Thus, the liquid collected in the cleaning tank 13 of the upstream cleaning unit can flow into the corresponding liquid storage tank 20 along the liquid return pipeline 14, which can effectively avoid the pollution of the external environment to the returned liquid.

[0079] In some optional examples of the present invention, the liquid return pipeline 14 of the first cleaning unit can be controllably communicated with the cleaning tank 13 of the first cleaning unit and the first liquid storage tank 20.

[0080] That is to say, as Figure 1 and Figure 2As shown, the liquid return pipeline 14 of the first cleaning unit can be controllably connected to the cleaning tank 13 of the first cleaning unit and the liquid storage tank 20 at the end through the corresponding valve body. That is, the first end of the liquid return pipeline 14 is connected to the cleaning tank 13, and the second end of the liquid return pipeline 14 is connected to the liquid storage tank 20 at the first position (i.e., the liquid storage tank 20 corresponding to the first cleaning unit). Moreover, the liquid return pipeline 14 of the first cleaning unit is provided with a fourth valve body 141. By opening and closing the fourth valve body 141, the controllable connection between the cleaning tank 13 of the first cleaning unit and the liquid storage tank 20 at the first position can be realized.

[0081] In this example, when the cleaning device 100 cleans the product, the cleaning tank 13 of the first cleaning unit is disconnected from the liquid storage tank 20 at the first position; when the cleaning device 100 performs self-cleaning, the liquid return pipeline 14 of the first cleaning unit connects the cleaning tank 13 of the first cleaning unit and the liquid storage tank 20 at the first position, and the first liquid supply pipe of the first cleaning unit is disconnected from the liquid supply pipe of the last cleaning unit. At this time, the first cleaning unit, the first liquid supply pipeline 11 of the first cleaning unit, the liquid return pipeline 14 of the first cleaning unit, and the liquid storage tank 20 at the first position form another circulation flow path, which is beneficial to cleaning the first cleaning unit and the corresponding pipelines and liquid storage tank 20, can further avoid the pollution of the cleaned product, and ensure the product yield.

[0082] In some embodiments of the present utility model, the cleaning device 100 further includes: a second liquid supply pipeline 40, and each liquid storage tank 20 is provided with a second liquid supply pipeline 40. The first end of the second liquid supply pipeline 40 is connected to the liquid storage tank 20, and the second liquid supply pipeline 40 can controllably supply liquid to the liquid storage tank 20; and / or, a third liquid supply pipeline 50, and the first liquid supply pipeline 11 of each downstream cleaning unit is provided with a third liquid supply pipeline 50. The first end of the third liquid supply pipeline 50 is connected to the corresponding first liquid supply pipeline 11, and the third liquid supply pipeline 50 can controllably supply liquid to the downstream cleaning unit.

[0083] Specifically, as Figure 1 and Figure 2 shown, a second liquid supply pipeline 40 is provided above each liquid storage tank 20. The first end of the second liquid supply pipeline 40 is connected to the liquid storage tank 20. The second liquid supply pipeline 40 is provided with a fifth valve body 41. The fifth valve body 41 can control the second liquid supply pipeline 40 to directly supply the required liquid to the liquid storage tank 20. Thus, when the cleaning device 100 is started up, it can ensure that there is water in each liquid storage tank 20 so that each cleaning unit 10 can immediately spray water to clean the product. After the stable operation, each liquid storage tank 20 no longer receives direct water supply, but performs step-by-step water supply for cleaning.

[0084] Further, a third liquid supply pipeline 50 is provided on the first liquid supply pipeline 11 of each downstream cleaning unit (i.e., the first liquid supply pipeline 11 excluding the last cleaning unit). The first end of the third liquid supply pipeline 50 is connected to the liquid storage tank 20. The third liquid supply pipeline 50 is provided with a sixth valve body 51, and the sixth valve body 51 can control the third liquid supply pipeline 50 to directly supply liquid to the corresponding downstream cleaning unit. For example, when the liquid in the liquid storage tank 20 does not meet the cleaning requirements (such as being too dirty), the third liquid supply pipeline 50 can be used to directly supply liquid to the first liquid supply pipeline 11, and supply liquid to the corresponding downstream cleaning unit through the first liquid supply pipeline 11, which is beneficial to cleaning the product thoroughly; it is also possible to use the third liquid supply pipeline 50 to directly supply liquid to the downstream cleaning unit when the cleaning device 100 is started, so that each cleaning unit 10 can immediately spray water to clean the product, and then cancel the liquid supply of the third liquid supply pipeline 50 after the operation is stable.

[0085] According to an embodiment of the present invention, the first end of the second liquid supply pipeline 40 can be controllably communicated with the third liquid supply pipeline 50 and disconnected from the second end of the third liquid supply pipeline 50.

[0086] That is to say, as Figure 1 and Figure 2 shown, the second end of the second liquid supply pipeline 40 is communicated with the third liquid supply pipeline 50, and the fourth valve body 141 can be used to control the communication and disconnection between the first end of the second liquid supply pipeline 40 and the third liquid supply pipeline 50. The third liquid supply pipeline 50 is provided with a seventh valve body 52, and the seventh valve body 52 is located between the second end of the second liquid supply pipeline 40 and the second end of the third liquid supply pipeline 50. Thus, the seventh valve body 52 can be used to control the communication and disconnection between the second end of the third liquid supply pipeline 50 and the first end of the third liquid supply pipeline 50 and the first end of the second liquid supply pipeline 40. The second end of the third liquid supply pipeline 50 can be directly connected to the factory direct water supply pipeline.

[0087] When the cleaning device 100 performs self-cleaning, the liquid storage tank 20, a part of the first liquid supply pipeline 11 connected to the liquid storage tank 20, a part of the third liquid supply pipeline 50, and the second liquid supply pipeline 40 can form a circulating flow path, which is beneficial to the self-cleaning of the part of the cleaning device 100, can effectively avoid the pollution of the cleaned product, and ensure the product yield.

[0088] In some alternative examples of the present invention, at least one liquid storage tank 20 is provided with a liquid medicine adding port 21.

[0089] Specifically, as Figure 1 and Figure 2 shown, the upper end of one liquid storage tank 20 or multiple liquid storage tanks 20 is provided with a liquid medicine adding port 21. The liquid medicine adding port 21 is provided with an eighth valve body 23. When the cleaning device 100 performs self-cleaning, the liquid medicine required for self-cleaning can be added into the liquid storage tank 20 from the liquid medicine adding port 21.

[0090] Optionally, a liquid medicine adding port 21 is provided at the upper end of the first liquid storage tank 20.

[0091] According to some embodiments of the present invention, the liquid medicine required for the self-cleaning of the cleaning device 100 is, for example, but not limited to, a low-concentration NaOH or H2O2 solution, so as to treat the bacteria growing in the cleaning device 100.

[0092] In some embodiments of the present invention, the cleaning device 100 further includes: a first liquid discharging pipeline 60, a first end of the first liquid discharging pipeline 60 is arranged in the first cleaning unit, and a second end of the first liquid discharging pipeline 60 can controllably discharge liquid.

[0093] That is to say, as Figure 1 and Figure 2 shown, the cleaning tank 13 of the first cleaning unit is provided with the first liquid discharging pipeline 60, and the cleaning tank 13 of the first cleaning unit may be provided with one or two liquid discharging ports. When the cleaning tank 13 of the first cleaning unit is provided with one liquid discharging port, the first end of the first liquid discharging pipeline 60 is connected to the liquid discharging port, and the first end of the liquid returning pipeline 14 of the first cleaning unit is communicated with the first liquid discharging pipeline 60; when the cleaning tank 13 of the first cleaning unit is provided with two liquid discharging ports, the first end of the first liquid discharging pipeline 60 is connected to one of the liquid discharging ports, and the first end of the liquid returning pipeline 14 of the first cleaning unit is connected to the other liquid discharging port. Moreover, the first liquid discharging pipeline 60 is provided with a ninth valve body 61, and through the ninth valve body 61, the communication and disconnection between the first end and the second end of the first liquid discharging pipeline 60 can be controlled, so as to control whether the liquid is discharged from the second end of the first liquid discharging pipeline 60.

[0094] According to an embodiment of the present invention, the cleaning device 100 further includes: a second liquid discharging pipeline 70, each liquid storage tank 20 is provided with a second liquid discharging pipeline 70, a first end of the second liquid discharging pipeline 70 is arranged in the liquid storage tank 20, and a second end of the second liquid discharging pipeline 70 can controllably discharge liquid.

[0095] In other words, as Figure 1 and Figure 2 shown, the bottom of each liquid storage tank 20 is provided with the second liquid discharging pipeline 70, the first end of the second liquid discharging pipeline 70 is communicated with the liquid storage tank 20, the second liquid discharging pipeline 70 is provided with a tenth valve body 71, and through the tenth valve body 71, the communication and disconnection between the first end and the second end of the second liquid discharging pipeline 70 can be controlled, so as to control whether the liquid is discharged at the second end of the second liquid discharging pipeline 70. When the liquid in the liquid storage tank 20 does not meet the cleaning requirements, it is beneficial to discharge the liquid that does not meet the cleaning requirements through the second liquid discharging pipeline 70; after the self-cleaning of the cleaning device 100 is completed, it is beneficial to discharge the self-cleaning liquid medicine through the second liquid discharging pipeline 70, which is convenient for use.

[0096] In some alternative examples of the present utility model, the second ends of the first liquid discharge pipeline 60 and the second liquid discharge pipeline 70 are both provided with a first sub-pipe 62 and a second sub-pipe 63, and the first sub-pipe 62 and the second sub-pipe 63 can respectively and controllably discharge liquid.

[0097] Specifically, as Figure 1 and Figure 2 shown, the second end of the first liquid discharge pipeline 60 is provided with a first sub-pipe 62 and a second sub-pipe 63, and the second end of the second liquid discharge pipeline 70 is also provided with a first sub-pipe 62 and a second sub-pipe 63, so that both the first liquid discharge pipeline 60 and the second liquid discharge pipeline 70 have two liquid discharge ends; and an eleventh valve body 64 is provided on each first sub-pipe 62, and a twelfth valve body is provided on each second sub-pipe 63, so that the first sub-pipe 62 and the second sub-pipe 63 can both controllably discharge liquid, which is beneficial to the discharge of different liquids. For example, the waste liquid for cleaning products by the cleaning device 100 can be discharged through the first sub-pipe 62, and the cleaning liquid for cleaning itself by the cleaning device 100 can be discharged through the second sub-pipe 63, which is beneficial to the subsequent treatment of different liquids.

[0098] According to some embodiments of the present utility model, a part of the first sub-pipe 62 and the second sub-pipe 63 is a transparent pipe, which is beneficial for users to view the discharged liquid.

[0099] In some specific examples of the present utility model, the first valve body 111 to the eleventh valve body 64 are all pneumatic ball valves, and the cleaning device 100 can control the opening and closing of each pneumatic ball valve through a PLC.

[0100] In some embodiments of the present utility model, the cleaning device 100 further includes: an overflow pipe 22, the first end of the overflow pipe 22 is arranged in the liquid storage tank 20, and the first end of the overflow pipe 22 is spaced apart from the inner bottom surface and the top of the liquid storage tank 20, the second end of the overflow pipe 22 passes through the bottom of the liquid storage tank 20, and the second end of the overflow pipe 22 is adapted to discharge the liquid higher than the first end of the overflow pipe 22.

[0101] In other words, each liquid storage tank 20 is provided with an overflow pipe 22. During assembly, the first end of the overflow pipe can be inserted into the liquid storage tank 20 from the bottom of the liquid storage tank 20, and the first end of the overflow pipe 22 is higher than the inner bottom surface of the liquid storage tank 20 and lower than the top of the liquid storage tank 20. Thus, when the liquid level in the liquid storage tank 20 is higher than the first end of the overflow pipe 22, the liquid will automatically flow into the first end of the overflow pipe 22 and be discharged from the second end of the overflow pipe 22 to the factory service, so that the liquid level in the liquid storage tank 20 can always be kept within a safe range, and the normal operation of the cleaning device 100 can be ensured.

[0102] According to some embodiments of the present utility model, a liquid level gauge is provided in the liquid storage tank 20. The height of the first end of the overflow pipe 22 is equal to or higher than the maximum height of the liquid level gauge. The second end of the overflow pipe 22 is communicated with the second liquid discharge pipeline, and the second end of the overflow pipe 22 is located between the tenth valve body 71 and the second end of the second liquid discharge pipeline 70. When the cleaning device 100 cleans the product, the tenth valve body 71 is in a closed state, and the corresponding eleventh valve body 64 of the second liquid discharge pipeline 70 is in an open state, so as to discharge the liquid higher than the first end of the overflow pipe 22 from the second liquid discharge pipeline 70.

[0103] According to an embodiment of the present utility model, a plurality of cleaning units 10 are arranged along a first direction. The cleaning unit 10 includes: a cleaning tank 13 and a spraying assembly 15. The cleaning tank 13 is provided with a cleaning channel penetrating along the first direction. The spraying assembly 15 is arranged in the cleaning tank 13. The spraying assembly 15 is provided with a plurality of nozzles 151 on both sides of the cleaning channel. The liquid inlet end of the spraying assembly 15 is connected to the first end of the first liquid supply pipeline 11.

[0104] That is to say, as Figure 1 and Figure 2 shown, a plurality of cleaning units 10 can be arranged in sequence along the first direction. The first direction can be a horizontal direction. The cleaning unit 10 mainly includes a cleaning tank 13 and a spraying assembly 15. Among them, the cleaning tanks 13 of a plurality of cleaning units 10 can be integrated into an integral structure. Each cleaning tank 13 is provided with a cleaning channel penetrating along the first direction. The plurality of cleaning channels are connected into a longer cleaning channel in the first direction. The product to be cleaned can pass through the cleaning channel along the first direction. The spraying assembly 15 can be fixed in the cleaning tank 13. The spraying assembly 15 includes two spraying pipelines distributed vertically. The two spraying pipelines are communicated with the first end of the first liquid supply pipeline 11. The two spraying pipelines are located on both sides of the cleaning channel, and a plurality of nozzles 151 distributed along the first direction are respectively arranged on one side of the two spraying pipelines facing each other. Thus, the product can be cleaned on both the upper and lower sides through the spraying assembly 15, which is beneficial to cleaning the product thoroughly.

[0105] In some alternative examples of the present utility model, the cleaning device 100 further includes: a roller type transmission system 80. The roller type transmission system 80 is arranged on a plurality of cleaning units 10. The roller type transmission system 80 is adapted to convey the product from the downstream cleaning unit to the upstream cleaning unit in the cleaning channel.

[0106] Specifically, as Figure 1 and Figure 2As shown, the cleaning device 100 further includes a roller-type transmission system 80. The roller-type transmission system 80 mainly includes a plurality of rollers spaced apart along the first direction. The axes of the rollers are perpendicular to the first direction and the vertical direction. The plurality of rollers are evenly arranged in the cleaning tank 13 of each cleaning unit 10. The rollers can carry the products to be cleaned, and the roller-type transmission system 80 can drive each roller to rotate around its own axis through a motor. Thus, the products to be cleaned can be conveyed from the downstream cleaning unit to the upstream cleaning unit in the cleaning channel through the roller-type transmission system 80, which is beneficial to quickly clean the products.

[0107] According to an embodiment of the present invention, each first liquid supply pipeline 11 is provided with a flow meter 113 and a filter 114. The flow meter 113 can measure the flow rate of the cleaning liquid supplied to the cleaning unit 10, and the filter 114 can filter the cleaning liquid before it enters the cleaning unit 10, which can ensure the cleaning effect of the products.

[0108] Further, the flow meter 113 and the filter 114 are located between the cleaning unit 10 and the first end of the third liquid supply pipeline 50.

[0109] In some alternative examples of the present invention, manual valves are provided at both ends of the pump 12, and one or more manual valves are provided in the connecting pipeline 30, the first liquid supply pipeline 11, the second liquid supply pipeline 40, and the third liquid supply pipeline 50.

[0110] When the cleaning device 100 according to the embodiment of the present invention is in use, the second end of the first liquid supply pipeline 11 of the last cleaning unit and the second end of each second liquid supply pipeline 40 are respectively connected to the plant direct water supply pipeline.

[0111] When the cleaning device 100 according to the embodiment of the present invention is cleaning, after the device is started, first, the plurality of liquid storage tanks 20 are respectively replenished with plant direct water, and the replenishment liquid level is controlled by the liquid level gauges in the liquid storage tanks 20. Here, taking the cleaning device 100 having four cleaning units 10 as an example for specific description.

[0112] As Figure 1 and Figure 2 shown, the cleaning device 100 includes four cleaning units 10 and three liquid storage tanks 20. The first cleaning unit 10 (i.e., the first cleaning unit) and the second cleaning unit 10 correspond to the first liquid storage tank 20 (i.e., the first cleaning unit), the second cleaning unit 10 and the third cleaning unit 10 correspond to the second liquid storage tank 20, and the third cleaning unit 10 and the fourth cleaning unit 10 (i.e., the last cleaning unit) correspond to the third liquid storage tank (i.e., the last liquid storage tank 20).

[0113] As Figure 1 and Figure 2As shown, when the cleaning device 100 is in formal operation, the flow direction of the glass substrate c (product) is from the first cleaning unit 10 to the fourth cleaning unit 10. To ensure the cleaning effect of the product, the fourth cleaning unit 10 is supplied with liquid directly from the factory utilities. After the water sprayed by the spray assembly 15 of the fourth cleaning unit 10 cleans the glass substrate c, the water returns to the third liquid storage tank 20 through the liquid return pipeline 14 of the fourth cleaning unit 10; the water in the third liquid storage tank 20 is supplied to the third cleaning unit 10 through the corresponding pump 12. After the water sprayed by the spray assembly 15 of the third cleaning unit 10 cleans the glass substrate c, the water returns to the second liquid storage tank 20 through the liquid return pipeline 14 of the third cleaning unit 10; the water in the second liquid storage tank 20 is supplied to the second cleaning unit 10 through the corresponding pump 12. After the water sprayed by the spray assembly 15 of the second cleaning unit 10 cleans the glass substrate c, the water returns to the first liquid storage tank 20 through the liquid return pipeline 14 of the second cleaning unit 10; the water in the first liquid storage tank 20 is supplied to the first cleaning unit 10 through the corresponding pump 12. After the water sprayed by the spray assembly 15 of the first cleaning unit 10 cleans the glass substrate c, the water is directly discharged to the factory utilities through the first liquid discharge pipeline 60 of the first cleaning unit 10. This design ensures that the water used in the entire cleaning system is a dynamic balance process, and ensures that during the process of the product flowing from the first cleaning unit 10 to the fourth cleaning unit 10, the cleanliness level gradually increases from the first cleaning unit 10 to the fourth cleaning unit 10. The water quality of the fourth cleaning unit 10, that is, the last water wash, is the cleanest, and it is directly supplied with ultrapure water from the factory utilities. The water used in the first cleaning unit 10 is directly discharged to the factory utilities after use. This design saves water consumption through the recycling of water, and forms a cleanliness gradient for cleaning, ensuring the cleaning effect.

[0114] Due to the long-term operation of the cleaning device 100, bacteria breeding problems occur in the pipelines, and the self-cleaning mode of the cleaning device 100 needs to be started. First, a low-concentration NaOH or H2O2 solution is supplied into the liquid storage tank 20 through the liquid medicine addition port 21 reserved at the upper part of the first liquid storage tank 20 (the liquid inlet mode is divided into manual and automatic, combined with the actual design).

[0115] Such as Figure 1 and Figure 2As shown, then close the first valve body 111 on the first liquid supply pipeline 11 of the first cleaning unit 10 and the third valve body 112 on the first liquid supply pipeline 11 of the fourth cleaning unit 10, and open the second valve body 31 on the connecting pipeline 30. At this time, the first liquid storage tank 20 supplies liquid through the pump 12 on the first liquid supply pipeline 11 of the first cleaning unit 10, so as to form a large circulation between the second cleaning unit 10 and the fourth cleaning unit 10, ensuring that the liquid medicine cleans the tank bodies, pipelines and the liquid storage tank 20 of the three cleaning units 10. After the cleaning is completed, close the second valve body 31, open the first valve body 111 and the third valve body 112, and at the same time close the ninth valve body 61 and open the fourth valve body 141. The first liquid storage tank 20 supplies liquid to the first cleaning unit 10, and the water of the first cleaning unit 10 flows back to the first liquid storage tank 20. In this way, the internal circulation is carried out to sterilize and clean the first cleaning unit 10 and the corresponding pipelines. As above, the pipeline sterilization cleaning of the first cleaning unit 10 to the fourth cleaning unit 10 is completed through two circulations. Since the manual valve bodies on the pipelines are in the normally open state, only the opening and closing of the pneumatic valve bodies need to be controlled on the PLC to realize the one-key switching of the pipelines and start the self-cleaning mode.

[0116] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cleaning device, characterized in that, Comprising: A plurality of cleaning units, each of the cleaning units is provided with a first liquid supply pipeline, a first end of the first liquid supply pipeline is connected to the cleaning unit, and the plurality of cleaning units include an upstream cleaning unit located upstream and a downstream cleaning unit located downstream; A pump, the pump is provided on the first liquid supply pipeline of the downstream cleaning unit; A liquid storage tank, the upstream cleaning unit and the downstream cleaning unit are correspondingly provided with the liquid storage tank, the liquid storage tank is adapted to store the liquid discharged from the upstream cleaning unit, and the liquid storage tank is communicated with a second end of the first liquid supply pipeline of the downstream cleaning unit; A connecting pipeline, a first end of the connecting pipeline is connected to the first liquid supply pipeline of the upstream cleaning unit, and a second end of the connecting pipeline is connected to the first liquid supply pipeline of the downstream cleaning unit; Wherein, the connecting pipeline can controllably communicate the first liquid supply pipeline of the upstream cleaning unit with the first liquid supply pipeline of the downstream cleaning unit, The first end of the connecting pipeline can controllably communicate with the first end of the first liquid supply pipeline of the upstream cleaning unit and disconnect from the second end of the first liquid supply pipeline of the upstream cleaning unit, The second end of the connecting pipeline can controllably communicate with the second end of the first liquid supply pipeline of the downstream cleaning unit and disconnect from the first end of the first liquid supply pipeline of the downstream cleaning unit.

2. The cleaning device according to claim 1, wherein Further comprising: A first valve body, the first valve body is arranged on the first liquid supply pipeline connected to the first end of the connecting pipeline, and the first valve body is located between the connecting pipeline and the second end of the first liquid supply pipeline; A second valve body, the second valve body is arranged on the connecting pipeline; A third valve body, the third valve body is arranged on the first liquid supply pipeline connected to the second end of the connecting pipeline, and the third valve body is located between the connecting pipeline and the first end of the first liquid supply pipeline.

3. The cleaning device according to claim 1, characterized in that Two adjacent cleaning units include the upstream cleaning unit and the downstream cleaning unit, and each two adjacent cleaning units are correspondingly provided with the liquid storage tank.

4. The cleaning device according to claim 3, characterized in that, ​ 5. The cleaning device according to claim 3, characterized in that, ​ ​ 6. The cleaning device according to claim 5, characterized in that, ​ ​ 7. The cleaning device according to claim 6, characterized in that, ​ 8. The cleaning device according to claim 1, characterized in that, ​ A second liquid supply pipeline, with each of the liquid storage tanks being provided with the second liquid supply pipeline. The first end of the second liquid supply pipeline is connected to the liquid storage tank, and the second liquid supply pipeline can controllably supply liquid to the liquid storage tank; and / or, A third liquid supply pipeline, with each of the first liquid supply pipelines of the downstream cleaning units being provided with the third liquid supply pipeline. The first end of the third liquid supply pipeline is connected to the corresponding first liquid supply pipeline, and the third liquid supply pipeline can controllably supply liquid to the downstream cleaning unit.

9. The cleaning device according to claim 8, wherein, The first end of the second liquid supply pipeline can controllably communicate with the third liquid supply pipeline and disconnect from the second end of the third liquid supply pipeline.

10. The cleaning device according to claim 1, wherein, At least one of the liquid storage tanks is provided with a liquid medicine adding port.

11. The cleaning device according to claim 5, wherein, Further comprising: A first liquid discharge pipeline, with the first end of the first liquid discharge pipeline being arranged at the first cleaning unit, and the second end of the first liquid discharge pipeline can controllably discharge liquid.

12. The cleaning device according to claim 11, wherein Further comprising: A second liquid discharge pipeline, with each of the liquid storage tanks being provided with the second liquid discharge pipeline. The first end of the second liquid discharge pipeline is arranged at the liquid storage tank, and the second end of the second liquid discharge pipeline can controllably discharge liquid.

13. The cleaning device according to claim 12, wherein Both the second end of the first liquid discharge pipeline and the second end of the second liquid discharge pipeline are provided with a first sub-pipe and a second sub-pipe, and the first sub-pipe and the second sub-pipe can respectively controllably discharge liquid.

14. The cleaning device according to claim 1, characterized in that, Further comprising: An overflow pipe, with the first end of the overflow pipe being arranged inside the liquid storage tank, and the first end of the overflow pipe being spaced apart from the inner bottom surface and the top of the liquid storage tank. The second end of the overflow pipe passes through the bottom of the liquid storage tank, and the second end of the overflow pipe is adapted to discharge liquid higher than the first end of the overflow pipe.

15. The cleaning device according to claim 1, characterized in that, A plurality of the cleaning units are arranged in a first direction, and the cleaning unit includes: A cleaning tank, with the cleaning tank being provided with a cleaning channel penetrating along the first direction; A spraying assembly, with the spraying assembly being arranged inside the cleaning tank. The spraying assembly is provided with a plurality of nozzles on both sides of the cleaning channel, and the liquid inlet end of the spraying assembly is connected to the first end of the first liquid supply pipeline.

16. The cleaning device according to claim 15, wherein, Further comprising: A roller-type transmission system, with the roller-type transmission system being arranged at a plurality of the cleaning units. The roller-type transmission system is adapted to convey a product from the downstream cleaning unit towards the upstream cleaning unit inside the cleaning channel.

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