Continuous multi-stage counter-current rinsing structure and washing system

Abstract

This invention relates to the field of workpiece cleaning technology, and discloses a continuous multi-stage countercurrent rinsing structure and a water washing system. The continuous multi-stage countercurrent rinsing structure includes an upper tank, a lower tank, and a drive pump. The upper tank contains a cleaning tank with a first end and a second end. Multiple cleaning zones are sequentially arranged along the length of the upper tank. The lower tank contains multiple dividing tanks corresponding to the cleaning zones, and the water in the cleaning zones is adapted to flow into the corresponding dividing tanks. From the second end to the first end, the liquid level in the dividing tanks decreases sequentially. The dividing tank near the second end has an inlet, and the dividing tank near the first end has an outlet. The water in the lower tank is adapted to flow from the second end towards the first end. The drive pump is used to extract water from the dividing tanks and transport it to the corresponding cleaning zones. This invention uses multiple dividing tanks to achieve different levels of water cleanliness in the dividing tanks, thereby reducing water discharge during workpiece cleaning.

Description

Technical Field

[0001] This invention relates to the field of workpiece cleaning technology, specifically to a continuous multi-stage countercurrent rinsing structure and a water washing system. Background Technology

[0002] Currently, in the fields of cleaning, electroplating, and coating, different containers are used to hold different liquids to form the required process flow, so as to complete the cleaning, electroplating, coating and other processes on the workpiece. The workpiece needs to go through the process of degreasing-water washing-acid washing-water washing-electroplating-water washing in sequence.

[0003] In the prior art, the device for cleaning workpieces includes an upper tank and a lower tank, which are connected to each other. The upper tank contains a cleaning tank with a certain amount of water for cleaning the workpieces. During the cleaning process, the water in the cleaning tank flows into the lower tank. In order to ensure the water supply in the cleaning tank, a pump is driven to draw water from the lower tank and deliver the water to the cleaning tank. Similarly, in order to ensure the cleanliness of the water in the lower tank, clean water is injected from one end of the lower tank and drained from the other end to dilute the dirty water in the lower tank and discharge it, thus ensuring the cleanliness of the water in the lower tank. However, this method of cleaning workpieces is relatively wasteful of water resources. Summary of the Invention

[0004] In view of this, the present invention provides a continuous multi-stage countercurrent rinsing structure and a water washing system to solve the problem of water waste when cleaning workpieces.

[0005] In a first aspect, the present invention provides a continuous multi-stage countercurrent rinsing structure, comprising:

[0006] The upper tank has a cleaning tank inside, with a first end and a second end at its two ends. Multiple cleaning zones are arranged sequentially along the length of the upper tank inside the cleaning tank. The workpiece is adapted to enter the cleaning zone from the first end and move toward the second end.

[0007] The lower tank has multiple dividing tanks corresponding to the multiple cleaning zones, and the water in the cleaning zones is suitable to flow into the corresponding dividing tanks. From the second end to the first end, the liquid level in the dividing tanks decreases sequentially. The dividing tank near the second end has an inlet, and the dividing tank near the first end has an outlet. The water in the lower tank is suitable to flow from the second end toward the first end.

[0008] A drive pump is used to extract water from the dividing tank and transport the water to the corresponding cleaning area.

[0009] Beneficial effects: This continuous multi-stage countercurrent rinsing structure allows workpieces to enter from the first end of the cleaning tank and move towards the second end, ensuring thorough cleaning as they pass through multiple cleaning zones. Multiple partitioned tanks are set within the lower tank, each corresponding to a cleaning zone. External water enters the partitioned tanks through an inlet near the second end. When the liquid level in a partitioned tank reaches a certain height, the water flows to the next partitioned tank as the liquid level decreases sequentially from the second end towards the first end, until the water exits through the outlet, minimizing water waste during the cleaning process. The cleanliness of the water in the multiple dividing tanks decreases sequentially from the second end towards the first end. That is, when the workpiece enters the cleaning zone near the first end, the water in the dividing tank near the first end provides water with lower cleanliness for the cleaning zone to perform preliminary cleaning of the workpiece. Until the workpiece enters the cleaning zone near the second end, the water in the dividing tank near the second end provides water with higher cleanliness for the cleaning zone to ensure that the workpiece is clean. At the same time, multiple dividing tanks are set to achieve different water cleanliness levels in the dividing tanks, thereby reducing water discharge during the workpiece cleaning process.

[0010] In one optional embodiment, a partition is provided between any two adjacent dividing slots, and a flow port is provided on the partition, wherein the height of the flow port closer to the second end is greater than the height of the flow port farther away from the second end.

[0011] Beneficial effects: By setting a partition between two adjacent dividing tanks to separate the water in the two dividing tanks, the cleanliness of the water in the different dividing tanks is made different. By setting a flow port on the partition, and setting the height of the flow port closer to the second end to be greater than the height of the flow port farther from the second end, the water level in the different dividing tanks is controlled, so that a liquid level difference is formed between the different dividing tanks. By setting different liquid level heights on different dividing tanks, the water level in the dividing tanks gradually decreases from the second end to the first end, and the cleanliness of the water flow also gradually decreases.

[0012] In one optional embodiment, a baffle is provided on one side of the partition, the baffle facing the flow port and a flow channel is provided between the baffle and the partition, and a gap is provided between the baffle and the bottom surface of the dividing groove, so that water flows from the flow port into the flow channel and flows along the flow channel from the gap into the bottom of the dividing groove.

[0013] Beneficial effects: By setting a baffle on one side of the partition, when the water flow from the flow port in one partition groove into the next partition groove, the water flow is blocked by the baffle, and the water flows along the flow channel formed between the baffle and the partition to the bottom of the partition groove, and flows out from the gap between the baffle and the bottom surface of the partition groove. That is, the water flow in one partition groove enters the partition groove from the bottom of another partition groove. This helps to agitate the water in the partition groove from the bottom, causing impurities in the partition groove to float to the surface under the agitation of the water flow, so that the impurities in the partition groove can be discharged. This provides the cleaning area with water with a high degree of cleanliness, ensuring the cleaning power of the workpiece.

[0014] In one optional embodiment, the cleaning area includes a first cleaning area, a second cleaning area, and a third cleaning area. A first dividing groove is provided in the lower tank corresponding to the first cleaning area, a second dividing groove is provided in the lower tank corresponding to the second cleaning area, and a third dividing groove is provided in the lower tank corresponding to the third cleaning area. The water inlet is provided on the third dividing groove, and the water outlet is provided on the first dividing groove.

[0015] Beneficial effects: By setting three cleaning zones in the upper tank and three corresponding dividing tanks in the lower tank, the cleaning effect on the workpieces is guaranteed. The workpieces enter the first, second, and third cleaning zones sequentially for cleaning. Water in the lower tank flows from the third dividing tank to the second dividing tank, then back to the first dividing tank and exits through the outlet. The cleanliness of the water in each dividing tank decreases sequentially from the third dividing tank to the second dividing tank and then back to the first dividing tank.

[0016] In one optional embodiment, a plurality of first nozzles are spaced apart in the first cleaning zone, and the first nozzles are adapted to spray water toward the workpiece for cleaning.

[0017] Beneficial effects: By setting multiple first nozzles in the first clean water zone, the workpiece can be sprayed and cleaned, which can initially remove most of the impurities on the workpiece, so that the workpiece can enter the next cleaning zone for cleaning.

[0018] In one optional embodiment, the first nozzle is connected to the first dividing groove via a connecting pipe, and the connecting pipe is equipped with the drive pump, which is used to draw water from the first dividing groove and deliver the water to the first nozzle for spraying.

[0019] Beneficial effects: By driving the pump to draw water from the first dividing tank, a water source is provided to the first nozzle to clean the workpiece, ensuring that the workpiece is cleaned in the first cleaning area. At the same time, the water in the first dividing tank is used from the first nozzle, reducing water waste during the cleaning process.

[0020] In one optional embodiment, the second cleaning zone is an immersion cleaning zone, and the workpiece is adapted to be immersed and cleaned in the immersion cleaning zone.

[0021] Beneficial effects: After the workpiece is sprayed and cleaned in the first cleaning zone, it enters the second cleaning zone for immersion, in which impurities are removed.

[0022] In one alternative embodiment, a plurality of second nozzles are spaced apart in the third cleaning zone, the second nozzles being adapted to spray water toward the workpiece for cleaning.

[0023] Beneficial effects: When the workpiece enters the third cleaning zone, it is sprayed and cleaned by multiple second nozzles to ensure that the workpiece is clean.

[0024] In one optional embodiment, a right-angle plate is further included, which is disposed in the dividing groove corresponding to the water outlet, and a water storage area is formed between the right-angle plate and the water outlet.

[0025] Beneficial effect: By setting a right-angle plate at the outlet, when the liquid level in the first dividing tank reaches the height of the right-angle plate, the water will flow over the right-angle plate and enter the water storage area, thereby increasing the overflow area of ​​the outlet and accelerating the flow rate of water in that area.

[0026] Secondly, the present invention also provides a water washing system, including a continuous multi-stage countercurrent rinsing structure.

[0027] Beneficial effects: In this water washing system, the workpiece enters from the first end of the cleaning tank and moves towards the second end, allowing it to pass through multiple cleaning zones sequentially, ensuring thorough cleaning. Multiple partitioned tanks are set within the lower tank, each corresponding to a cleaning zone. External water flows into the partitioned tanks through the inlet near the second end. When the liquid level in the partitioned tank reaches a certain height, the water flows to the next partitioned tank as the liquid level decreases sequentially from the second end towards the first end, until the water exits from the outlet, reducing water waste during the cleaning process. The cleanliness of the water in the multiple dividing tanks decreases sequentially from the second end towards the first end. That is, when the workpiece enters the cleaning zone near the first end, the water in the dividing tank near the first end provides water with lower cleanliness for the cleaning zone to perform preliminary cleaning of the workpiece. Until the workpiece enters the cleaning zone near the second end, the water in the dividing tank near the second end provides water with higher cleanliness for the cleaning zone to ensure that the workpiece is clean. At the same time, multiple dividing tanks are set to achieve different water cleanliness levels in the dividing tanks, thereby reducing water discharge during the workpiece cleaning process. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a continuous multi-stage countercurrent rinsing structure according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the internal structure of the continuous multi-stage countercurrent rinsing system shown.

[0031] Figure 3 for Figure 2 A structural diagram from another perspective;

[0032] Figure 4 This is a schematic diagram of the first, second, and third dividing tanks of a continuous multi-stage countercurrent rinsing structure according to an embodiment of the present invention.

[0033] Figure 5 for Figure 4 The front view.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Upper tank; 101. First end; 102. Second end; 2. Lower tank; 3. Inlet; 4. Outlet; 5. Baffle; 501. Flow port; 6. Baffle; 7. Flow channel; 8. First cleaning zone; 801. First nozzle; 9. Second cleaning zone; 10. Third cleaning zone; 1001. Second nozzle; 11. First dividing trough; 12. Second dividing trough; 13. Third dividing trough; 14. Right angle plate; 15. Water storage area; 16. Observation port; 17. Drive pump; 18. Scraper. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In related technologies, the device for cleaning workpieces includes an upper tank and a lower tank, which are connected to each other. The upper tank contains a cleaning tank with a certain amount of water for cleaning the workpieces. During the cleaning process, the water in the cleaning tank flows into the lower tank. To ensure the water supply in the cleaning tank, a pump is driven to draw water from the lower tank and transport it into the cleaning tank. Similarly, to ensure the cleanliness of the water in the lower tank, clean water is injected from one end of the lower tank and drained from the other end to dilute the dirty water in the lower tank and discharge it, thus ensuring the cleanliness of the water in the lower tank. However, this method of cleaning workpieces is relatively wasteful of water resources.

[0038] To solve the above technical problems, the following will be combined with... Figures 1 to 5 The following describes embodiments of the present invention.

[0039] According to embodiments of the present invention, in one aspect, such as Figures 1 to 5 As shown, a continuous multi-stage countercurrent rinsing structure is provided, including an upper tank 1, a lower tank 2 and a drive pump 17.

[0040] Specifically, such as Figure 1 As shown, the upper tank 1 has a cleaning tank inside, with a first end 101 and a second end 102 at its two ends. Multiple cleaning zones are arranged sequentially along the length of the upper tank 1. The workpiece is adapted to enter the cleaning zone from the first end 101 and move towards the second end 102. This can be understood as the workpiece moving from the first end 101 towards the second end 102 and being cleaned within the cleaning zone.

[0041] Specifically, such as Figure 1 As shown, the lower tank 2 is equipped with multiple dividing channels, each corresponding to a cleaning zone. Water in the clean water zone is designed to flow into the corresponding dividing channel. From the second end 102 to the first end 101, the liquid level in the dividing channels decreases sequentially. The dividing channel near the second end 102 is equipped with a water inlet 3, and the dividing channel near the first end 101 is equipped with a water outlet 4. Water in the lower tank 2 is designed to flow from the second end 102 towards the first end 101.

[0042] Specifically, such as Figure 1 As shown, the drive pump 17 is used to extract water from the dividing tank and transport the water to the corresponding cleaning area.

[0043] This continuous multi-stage countercurrent rinsing structure allows the workpiece to enter from the first end 101 of the cleaning tank and move towards the second end 102, ensuring thorough cleaning by passing through multiple cleaning zones. Multiple partitioned tanks are set within the lower tank 2, corresponding to multiple cleaning zones. External water flows into the partitioned tanks through the inlet 3 near the second end 102. When the liquid level in the partitioned tank reaches a certain height, the water flows to the next partitioned tank as the liquid level decreases sequentially from the second end 102 towards the first end 101, until the water exits from the outlet 4, minimizing water waste during the cleaning process. The cleanliness of the water in the multiple dividing tanks decreases sequentially from the second end 102 toward the first end 101. That is, when the workpiece enters the cleaning zone near the first end 101, the water in the dividing tank near the first end 101 provides water with lower cleanliness for the cleaning zone to perform preliminary cleaning of the workpiece. Until the workpiece enters the cleaning zone near the second end 102, the water in the dividing tank near the second end 102 provides water with higher cleanliness for the cleaning zone to ensure that the workpiece is clean. At the same time, multiple dividing tanks are set to achieve different water cleanliness levels in the dividing tanks to reduce water discharge during the workpiece cleaning process.

[0044] It should be noted that the multiple dividing slots and multiple cleaning zones can be set in a one-to-one correspondence manner, or in a manner where one cleaning zone corresponds to multiple dividing slots, or in a manner where one dividing slot corresponds to multiple cleaning zones. In the embodiments of this application, the specific setting method of dividing slots and cleaning zones is not limited.

[0045] It should be noted that the water in the lower tank 2 flows from the second end 102 toward the first end 101. The workpiece is cleaned in the cleaning zone near the first end 101. That is, the water left from this clean water zone is relatively turbid. The turbid water flows into the dividing tank near the first end 101. As the workpiece moves from the first end 101 toward the second end 102 and is cleaned, the cleanliness of the workpiece also increases. That is, the cleanliness of the water used to clean the workpiece gradually improves until the workpiece enters the cleaning zone of the second end 102. The water in the dividing tank corresponding to this cleaning zone has a high cleanliness, resulting in a better cleaning effect on the workpiece.

[0046] Specifically, the cleaning methods for multiple cleaning zones can be different or the same. For example, a cleaning zone can be a spray cleaning zone, a soaking cleaning zone, or a brush cleaning zone. In this embodiment of the application, the type and combination of cleaning zones are not specifically limited.

[0047] In one embodiment, such as Figures 2 to 5As shown, a partition 5 is provided between any two adjacent dividing tanks. A flow port 501 is provided on the partition 5, with the height of the flow port 501 closer to the second end 102 being greater than the height of the flow port 501 farther from the second end 102. By setting the partition 5 between two adjacent dividing tanks, the water in the two dividing tanks is separated, resulting in different levels of cleanliness in the water within each dividing tank. By providing flow ports 501 on the partition 5, and ensuring that the height of the flow port 501 closer to the second end 102 is greater than the height of the flow port 501 farther from the second end 102, the water level in each dividing tank is controlled, creating a water level difference between the different dividing tanks. By setting different water level heights in different dividing tanks, the water level in the dividing tanks gradually decreases from the second end 102 to the first end 101, and the cleanliness of the water flow also gradually decreases.

[0048] Specifically, the flow port 501 can be a regular shape such as a square flow port 501 or a circular flow port 501, or it can be an irregular shape. In this embodiment, the shape of the flow port 501 is not specifically limited.

[0049] In one embodiment, such as Figure 2 , Figure 4 and Figure 5 As shown, a baffle 6 is provided on one side of the partition 5, facing the flow port 501. A flow channel 7 is left between the baffle 6 and the partition 5, and a gap is left between the baffle 6 and the bottom surface of the dividing groove. Water flows from the flow port 501 into the flow channel 7 and flows along the flow channel 7 into the bottom of the dividing groove through the gap. By providing a baffle 6 on one side of the partition 5, when the water flow from the flow port 501 into the next dividing groove, the water flow is blocked by the baffle 6, and the water flow flows along the flow channel 7 formed between the baffle 6 and the partition 5 to the bottom of the dividing groove, and flows out from the gap between the baffle 6 and the bottom surface of the dividing groove. That is, the water flow in one dividing groove enters the dividing groove from the bottom of another dividing groove, which helps to agitate the water in the dividing groove from the bottom, so that the impurities in the dividing groove float to the surface under the agitation of the water flow, so as to facilitate the discharge of impurities in the dividing groove, thereby providing water with high cleanliness to the cleaning area and ensuring the cleaning power of the workpiece.

[0050] In one embodiment, such as Figure 2 and Figure 3As shown, the cleaning area includes a first cleaning area 8, a second cleaning area 9, and a third cleaning area 10. A first dividing groove 11 is provided in the lower tank 2 corresponding to the first cleaning area 8; a second dividing groove 12 is provided in the lower tank 2 corresponding to the second cleaning area 9; and a third dividing groove 13 is provided in the lower tank 2 corresponding to the third cleaning area 10. A water inlet 3 is provided on the third dividing groove 13, and a water outlet 4 is provided on the first dividing groove 11. By setting three cleaning areas in the upper tank 1 and three dividing grooves corresponding to the three cleaning areas in the lower tank 2, the cleaning effect on the workpiece is ensured. The workpiece enters the first cleaning area 8, the second cleaning area 9, and the third cleaning area 10 sequentially for cleaning. The water flow in the lower tank 2 flows from the third dividing groove 13 to the second dividing groove 12, then to the first dividing groove 11, and exits from the water outlet 4. The cleanliness of the water in the dividing grooves decreases sequentially from the third dividing groove 13 to the second dividing groove 12 and then to the first dividing groove 11.

[0051] In one embodiment, such as Figure 3 As shown, a plurality of first nozzles 801 are spaced apart in the first cleaning zone 8. The first nozzles 801 are adapted to spray water towards the workpiece for cleaning. By setting a plurality of first nozzles 801 in the first clean water zone, the workpiece can be sprayed and cleaned by the plurality of first nozzles 801, which can initially remove most of the impurities on the workpiece, so that the workpiece can enter the next cleaning zone for cleaning.

[0052] In one embodiment, the first nozzle 801 is connected to the first dividing groove 11 via a connecting pipe. A drive pump 17 is provided on the connecting pipe. The drive pump 17 is used to draw water from the first dividing groove 11 and deliver the water to the first nozzle 801 for spraying. By drawing water from the first dividing groove 11 through the drive pump 17, a water source is provided to the first nozzle 801 to clean the workpiece, ensuring that the workpiece is cleaned thoroughly in the first cleaning zone 8. At the same time, the use of water from the first dividing groove 11 by the first nozzle 801 reduces water waste during the cleaning process.

[0053] In one embodiment, such as Figure 2 and Figure 3 As shown, the second cleaning zone 9 is an immersion cleaning zone, where the workpiece is suitable for immersion cleaning. After being sprayed cleaned in the first cleaning zone 8, the workpiece enters the second cleaning zone 9 for immersion, where impurities are removed by immersion.

[0054] Specifically, the length of the immersion cleaning zone can be greater than the length of the first cleaning zone 8, so that the workpiece can be immersed in the immersion cleaning zone for a long time. In this embodiment, the specific lengths of the immersion cleaning zone and the first cleaning zone 8 are not limited.

[0055] Specifically, a scraper 18 can be installed between the immersion cleaning zone and the first cleaning zone 8. When the workpiece enters the immersion cleaning zone from the first cleaning zone 8, the scraper 18 removes water and impurities from the workpiece surface. Similarly, a scraper 18 can also be installed between the immersion cleaning zone and the third cleaning zone 10.

[0056] In one embodiment, a plurality of second nozzles 1001 are spaced apart within the third cleaning zone 10. The second nozzles 1001 are adapted to spray water towards the workpiece for cleaning. When the workpiece enters the third cleaning zone 10, it is sprayed and cleaned by the multiple second nozzles 1001 to ensure that the workpiece is clean.

[0057] In one embodiment, such as Figure 4 and Figure 5 As shown, it also includes a right-angle plate 14, which is located in the dividing groove corresponding to the water outlet 4. A water storage area 15 is formed between the right-angle plate 14 and the water outlet 4. By setting the right-angle plate 14 at the water outlet 4, when the liquid level in the first dividing groove 11 reaches the height of the right-angle plate 14, the water will flow over the right-angle plate 14 and enter the water storage area 15, thereby increasing the overflow area of ​​the water outlet 4 and accelerating the flow rate of water in that area.

[0058] Before explaining the principle of the continuous multi-stage countercurrent rinsing structure, it is necessary to clarify the following:

[0059] 1) The workpiece moves from the first end 101 toward the second end 102 in the cleaning tank, and passes through the first cleaning zone 8, the second cleaning zone 9 and the third cleaning zone 10 in sequence.

[0060] 2) The water flow direction in the lower tank 2 is that the water is injected from the inlet 3 of the second end 102 and flows towards the first end 101. That is, the water passes through the third dividing tank 13, the second dividing tank 12 and the first dividing tank 11 in sequence, and then flows out from the outlet 4 on the first dividing tank 11.

[0061] 3) The liquid level in the third dividing tank 13 is greater than the liquid level in the second dividing tank 12, and the liquid level in the second dividing tank 12 is greater than the liquid level in the first dividing tank 11.

[0062] 4) The cleanliness of the water in the third dividing tank 13 is greater than that of the water in the second dividing tank 12, and the cleanliness of the water in the second dividing tank 12 is greater than that of the water in the first dividing tank 11.

[0063] The working principle of the continuous multi-stage countercurrent rinsing structure in this embodiment is described as follows:

[0064] The workpiece enters the first cleaning zone 8 from the first end 101. The driving pump 17 draws water from the first dividing tank 11 and delivers the water to the first nozzle 801. The first nozzle 801 sprays and rinses the workpiece. The sprayed water falls back into the first dividing tank 11. Since there is a certain liquid level difference between the first dividing tank 11 and the second dividing tank 12, the water in the second dividing tank 12 enters the flow channel 7 through the flow port 501 and then enters from the bottom of the first dividing tank 11. This causes the impurities in the water in the first dividing tank 11 to float upward with the water flow under the agitation of the water flow and then flow out from the outlet 4, so as to maintain the cleanliness of the water in the first dividing tank 11 and facilitate the initial cleaning of the workpiece.

[0065] The workpiece enters the second cleaning zone 9 from the first cleaning zone 8, where it undergoes immersion cleaning. The immersion water in the second cleaning zone 9 flows into the second dividing tank 12. Under the action of the drive pump 17, the water in the second dividing tank 12 is transported into the second cleaning zone 9. Due to a certain liquid level difference between the second dividing tank 12 and the third dividing tank 13, water in the third dividing tank 13 enters the flow channel 7 through the flow port 501, and then enters from the bottom of the second dividing tank 12. This causes impurities in the water in the second dividing tank 12 to float upwards with the water flow due to the agitation, and then flow into the first dividing tank 11 through the flow port 501, thus maintaining the cleanliness of the water in the second dividing tank 12, which is beneficial for cleaning the workpiece.

[0066] The workpiece enters the third cleaning zone 10 from the second cleaning zone 9. The workpiece is sprayed and cleaned in the third cleaning zone 10 by the second nozzle 1001. The sprayed water will fall back into the third dividing tank 13. Since water is continuously injected into the third dividing tank 13 from the water inlet 3, the cleanliness of the water in the third dividing tank 13 is good, which is conducive to cleaning the workpiece.

[0067] According to an embodiment of the present invention, another aspect provides a washing system including a continuous multi-stage countercurrent rinsing structure.

[0068] In this water washing system, the workpiece enters from the first end 101 of the cleaning tank and moves towards the second end 102, allowing it to pass through multiple cleaning zones sequentially for thorough cleaning. Multiple partitioned tanks are set within the lower tank body 2, each corresponding to a different cleaning zone. External water flows into the partitioned tanks through the inlet 3 near the second end 102. When the liquid level in the partitioned tank reaches a certain height, the water flows to the next partitioned tank as the liquid level decreases sequentially from the second end 102 towards the first end 101, until the water exits from the outlet 4, minimizing water waste during the cleaning process. The cleanliness of the water in the multiple dividing tanks decreases sequentially from the second end 102 toward the first end 101. That is, when the workpiece enters the cleaning zone near the first end 101, the water in the dividing tank near the first end 101 provides water with lower cleanliness for the cleaning zone to perform preliminary cleaning of the workpiece. Until the workpiece enters the cleaning zone near the second end 102, the water in the dividing tank near the second end 102 provides water with higher cleanliness for the cleaning zone to ensure that the workpiece is clean. At the same time, multiple dividing tanks are set to achieve different water cleanliness levels in the dividing tanks to reduce water discharge during the workpiece cleaning process.

[0069] Specifically, multiple observation ports 16 can be provided on the lower tank 2 to facilitate observation of the condition inside the dividing tank.

[0070] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A continuous multi-stage countercurrent rinsing structure, characterized in that, include: The upper tank (1) is provided with a cleaning tank. The two ends of the cleaning tank are a first end (101) and a second end (102). Multiple cleaning zones are arranged sequentially along the length of the upper tank (1) in the cleaning tank. The workpiece is suitable to enter the cleaning zone from the first end (101) and move towards the second end (102). The lower tank (2) has multiple dividing slots corresponding to the multiple cleaning zones, and the water in the cleaning zones is suitable to flow into the corresponding dividing slots. From the second end (102) to the first end (101), the liquid level in the dividing slots decreases sequentially. The dividing slot near the second end (102) is provided with an inlet (3), and the dividing slot near the first end (101) is provided with an outlet (4). The water in the lower tank (2) is suitable to flow from the second end (102) toward the first end (101). Drive pump (17) is used to extract water from the dividing tank and transport the water to the corresponding cleaning area; A partition (5) is provided between any two adjacent dividing slots, and a flow port (501) is provided on the partition (5). The height of the flow port (501) closer to the second end (102) is greater than the height of the flow port (501) farther away from the second end (102). A baffle (6) is provided on one side of the partition (5), the baffle (6) faces the flow port (501) and a flow channel (7) is left between the baffle (6) and the partition (5), and a gap is left between the baffle (6) and the bottom surface of the dividing groove. Water flows into the flow channel (7) from the flow port (501) and flows into the bottom of the dividing groove from the gap along the flow channel (7); The cleaning area includes a first cleaning area (8), a second cleaning area (9) and a third cleaning area (10). A first dividing groove (11) is provided in the lower tank (2) corresponding to the first cleaning area (8), a second dividing groove (12) is provided in the lower tank (2) corresponding to the second cleaning area (9), and a third dividing groove (13) is provided in the lower tank (2) corresponding to the third cleaning area (10). The water inlet (3) is opened on the third dividing groove (13), and the water outlet (4) is opened on the first dividing groove (11). The first cleaning zone (8) is provided with a plurality of first nozzles (801) spaced apart, and the first nozzles (801) are adapted to spray water toward the workpiece for cleaning; The first nozzle (801) is connected to the first dividing groove (11) via a connecting pipe. The connecting pipe is equipped with the drive pump (17), which is used to draw water from the first dividing groove (11) and deliver the water to the first nozzle (801) for spraying. The second cleaning zone (9) is an immersion cleaning zone, and the workpiece is suitable for immersion cleaning in the immersion cleaning zone; The third cleaning zone (10) is provided with a plurality of second nozzles (1001) spaced apart, and the second nozzles (1001) are adapted to spray water toward the workpiece for cleaning.

2. The continuous multi-stage countercurrent rinsing structure according to claim 1, characterized in that, It also includes a right-angle plate (14), which is located in the dividing groove corresponding to the water outlet (4), and a water storage area (15) is formed between the right-angle plate (14) and the water outlet (4).

3. A water washing system, characterized in that, include: The continuous multi-stage countercurrent rinsing structure according to any one of claims 1 to 2.

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