Coating recycling device and method

Abstract

The invention discloses a coating recycling device and method.The device comprises a recycling tank, a recycling barrel, a proportioning barrel and a new material barrel, the recycling tank is configured to recycle liquid scattered at a spray head, the recycling barrel is communicated with the recycling tank, the proportioning barrel is communicated with the recycling barrel, the proportioning barrel is communicated with the spray head, and the new material barrel is communicated with the proportioning barrel; and the proportioning barrel is configured to convey the proportioned liquid to the spray head. According to the scheme provided by the invention, the recovered liquid and the new liquid in the new material barrel are proportioned and mixed according to the preset proportion through the proportioning barrel, so that the proportioned liquid meets the use requirement, and then the proportioned liquid is conveyed to the spray head to complete the surface spraying of the battery cell, so that the continuous spraying operation requirement can be met; and the production efficiency is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of battery spraying, and particularly relates to a device and method for recycling paint. Background Art

[0002] In the core spraying process, since continuous spraying operation is adopted, continuous supply of paint is required. However, a large amount of paint cannot directly act on the core, but falls into the paint recovery tank. Since the internal component ratio of the recovered paint is inconsistent with that of the new paint, direct use will affect the insulation performance of the battery surface. Therefore, it is necessary to strictly proportion the recovered paint and the new paint to meet the process requirements.

[0003] In the related art, during the mixing process of the recovered paint and the new paint, continuous spraying operation cannot be satisfied. Summary of the Invention

[0004] In view of the above problems, this application provides a device and method for recycling paint, which can solve the problem that continuous spraying operation cannot be satisfied during the mixing process of the recovered paint and the new paint.

[0005] To solve the above technical problems, in a first aspect, this application proposes a device for recycling paint, including: A recovery tank configured to recover the liquid spilled at the nozzle; A recovery barrel connected to the recovery tank; A proportioning barrel connected to the recovery barrel and also connected to the nozzle; A new material barrel connected to the proportioning barrel, and the proportioning barrel is configured to convey the proportioned liquid to the nozzle; A first supply pump disposed between the recovery barrel and the proportioning barrel; A first proximity switch disposed on the first supply pump and configured to detect the pulse count of the first supply pump; A second supply pump disposed between the new material barrel and the proportioning barrel; A second proximity switch disposed on the second supply pump and configured to detect the pulse count of the second supply pump.

[0006] In the technical solution of the embodiment of this application, the recovered liquid and the new liquid in the new material barrel are proportioned and mixed in a preset ratio through the proportioning barrel, so that the proportioned liquid meets the usage requirements, and then the proportioned liquid is conveyed to the nozzle to complete the spraying on the surface of the core, thus meeting the requirements of continuous spraying operation and effectively improving the production efficiency.

[0007] In some embodiments, the paint recycling device further includes a first control valve, a first pipeline, and a plurality of first liquid level detection components; The first liquid level detection components are arranged in the recovery tank, the first control valve is arranged on the first pipeline, and the first pipeline is configured to connect the recovery tank and the recovery barrel.

[0008] In this way, by detecting the liquid level position in the recovery tank with the first liquid level detection components, when the liquid level in the recovery tank is at a high level, the first control valve is opened so that the liquid in the recovery tank flows into the recovery barrel; when the liquid level in the recovery tank is at a low level, the first control valve is closed.

[0009] In some embodiments, the paint recycling device further includes a liquid recovery pump, the liquid recovery pump is arranged on the first pipeline, and the liquid recovery pump is located downstream of the first control valve along the liquid flow direction in the first pipeline. In this way, by providing power through the recovery pump, it is convenient to transport the liquid in the recovery tank to the recovery barrel.

[0010] In some embodiments, the paint recycling device further includes a first stirring component, and the first stirring component is arranged in the recovery barrel. In this way, by stirring the recovered liquid and the new liquid in the recovery barrel with the first stirring component, the recovered liquid and the new liquid can be fully mixed.

[0011] In some embodiments, the paint recycling device further includes a second liquid level detection component, and the second liquid level detection component is arranged in the recovery barrel. In this way, the content of the liquid in the recovery barrel can be conveniently detected through the second liquid level detection component.

[0012] In some embodiments, the paint recycling device further includes a second pipeline, a first supply pump is arranged on the second pipeline, and the second pipeline is configured to connect the recovery barrel and the proportioning barrel. In this way, by providing power through the first supply pump, it is convenient to transport the liquid in the recovery barrel to the proportioning barrel.

[0013] In some embodiments, the paint recycling device further includes at least one first filter, the first filter is arranged on the second pipeline, and the first filter is located downstream of the first supply pump along the liquid flow direction in the second pipeline. In this way, the recovered liquid is filtered through the first filter to prevent impurities from flowing into the proportioning barrel.

[0014] In some embodiments, the paint recycling device further includes a second control valve and a first flow rate detection component; The second control valve is located downstream of the first filter along the liquid flow direction in the second pipeline; the second control valve and the first flow detection member are sequentially arranged in the second pipeline along the liquid flow direction in the second pipeline. In this way, the flow rate of the recycled liquid in the second pipeline is detected by the first flow detection member, and then the opening degree of the second control valve is controlled according to the detected flow rate value, so that the flow rate of the recycled liquid in the second pipeline can be adjusted in real time.

[0015] In some embodiments, the second pipeline has a first extending end, the first extending end is located inside the recycling bucket, and the first extending end is in contact with the inner bottom surface of the recycling bucket. In this way, it is convenient to pump all the liquid in the recycling bucket into the proportioning bucket.

[0016] In some embodiments, the paint recycling device further includes a second stirring member, and the second stirring member is arranged in the proportioning bucket. In this way, it is convenient to stir the liquid in the proportioning bucket.

[0017] In some embodiments, the paint recycling device further includes a third liquid level detection member, and the third liquid level detection member is arranged in the proportioning bucket. In this way, it is convenient to detect the liquid level in the proportioning bucket.

[0018] In some embodiments, the paint recycling device further includes a heating member, and the heating member is arranged in the proportioning bucket. In this way, by heating the liquid in the proportioning bucket with the heating member, it is convenient to improve the fluidity of the liquid in the proportioning bucket.

[0019] In some embodiments, the paint recycling device further includes a third pipeline, the second supply pump is arranged in the third pipeline, and the third pipeline is configured to communicate the new material bucket and the proportioning bucket. In this way, with the power provided by the second supply pump, it is convenient to transport the liquid in the new material bucket to the proportioning bucket.

[0020] In some embodiments, the paint recycling device further includes at least one second filter, the second filter is arranged in the third pipeline, and the second filter is located downstream of the second supply pump along the liquid flow direction in the third pipeline. In this way, impurities in the liquid in the new material bucket can be prevented from flowing into the proportioning bucket.

[0021] In some embodiments, the paint recycling device further includes a third control valve and a second flow detection member; The third control valve is located downstream of the second filter along the liquid flow direction in the third pipeline; the third control valve and the second flow detection member are sequentially arranged in the third pipeline along the liquid flow direction in the third pipeline.

[0022] In this way, the flow rate of the recycled liquid in the third pipeline is detected by the second flow rate detection component, and then the opening degree of the third control valve is controlled according to the detected flow rate value, so that the flow rate of the new liquid in the third pipeline can be adjusted in real time.

[0023] In some embodiments, the third pipeline has a second extending end, the second extending end is located in the new material barrel, and the second extending end contacts the inner bottom surface of the new material barrel. In this way, it is convenient to transport all the liquid in the new material barrel to the mixing barrel.

[0024] In some embodiments, the paint recycling device further includes a third stirring component, and the third stirring component is arranged in the new material barrel. In this way, it is convenient to stir the liquid in the new material barrel and avoid the deposition of the liquid in the new material barrel.

[0025] In some embodiments, the paint recycling device further includes a fourth liquid level detection component, and the fourth liquid level detection component is arranged in the new material barrel. In this way, the liquid level in the new material barrel can be conveniently detected by the fourth liquid level detection component.

[0026] In some embodiments, the paint recycling device further includes a third supply pump and a fourth pipeline, the third supply pump is arranged on the fourth pipeline, and the fourth pipeline is configured to connect the mixing barrel and the nozzle. In this way, by the power provided by the third supply pump, it is convenient to transport the liquid in the mixing barrel to the nozzle.

[0027] In some embodiments, the paint recycling device further includes at least one third filter, the third filter is arranged on the fourth pipeline, and the third filter is located downstream of the third supply pump along the flow direction of the liquid in the fourth pipeline. In this way, the impurities existing in the liquid in the mixing barrel can be prevented from being transported to the nozzle, thereby affecting the quality of the nozzle on the surface of the battery cell.

[0028] In some embodiments, the fourth pipeline has a third extending end, the third extending end is located in the mixing barrel, and the third extending end contacts the inner bottom surface of the mixing barrel.

[0029] In a second aspect, the present application proposes a paint recycling method, which is applied to the paint recycling device according to any one of the embodiments of the present application, and the method includes: Measuring the liquid level in the mixing barrel by a third liquid level detection component; Under the condition that the liquid level in the mixing barrel is lower than a preset value, transporting recycled liquid into the mixing barrel through the recycling barrel, and transporting new liquid into the mixing barrel through the new material barrel; Calculate the ratio of the pulse counts of the second supply pump between the new material barrel and the proportioning barrel and the first supply pump between the recycling barrel and the proportioning barrel. Under the condition that the ratio of the pulse counts is within a preset range, it is determined that the ratio of the new liquid and the recycled liquid in the proportioning barrel is normal.

[0030] In some embodiments, the replenishment of the recycled liquid into the proportioning barrel through the recycling barrel and the replenishment of the new liquid into the proportioning barrel through the new material barrel include: Detect the flow rate Q1 of the recycled liquid transported from the recycling barrel into the proportioning barrel through the first flow detection component; Determine the valve opening degree O1 of the second control valve between the recycling barrel and the proportioning barrel according to Q1; Detect the flow rate Q2 of the new liquid transported from the new material barrel into the proportioning barrel through the second flow detection component; Determine the valve opening degree O2 of the third control valve between the new material barrel and the proportioning barrel according to Q2.

[0031] In some embodiments, the transportation of the recycled liquid from the recycling barrel into the proportioning barrel includes: Under the condition that the liquid level in the recycling barrel is lower than the preset value, close the first supply pump between the recycling barrel and the proportioning barrel; Under the condition that the liquid level in the recycling barrel is greater than or equal to the preset value, turn on the first supply pump between the recycling barrel and the proportioning barrel.

[0032] In some embodiments, the transportation of the new liquid from the new material barrel into the proportioning barrel includes: Under the condition that the liquid level in the new material barrel is lower than the preset value, close the first supply pump between the recycling barrel and the proportioning barrel, and transport the liquid from the proportioning barrel to the nozzle; Under the condition that the liquid level in the new material barrel is not lower than the preset value, turn on the first supply pump and the second supply pump between the new material barrel and the proportioning barrel.

[0033] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] By reading the detailed description of the following embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings: Figure 1 It is a schematic structural diagram of a paint recycling device provided by some embodiments of the present application.

[0035] The reference numerals in the specific embodiments are as follows: 10. Recovery tank; 11. First liquid level detection component; 12. First control valve; 13. Liquid recovery pump; 14. First pipeline; 15. Recovery barrel; 16. First stirring component; 17. Second liquid level detection component; 18. First supply pump; 19. First filter; 20. Second control valve; 21. First flow rate detection component; 22. Second pipeline; 221. First insertion end; 23. Ratio barrel; 24. Second stirring component; 25. Third liquid level detection component; 26. Heating component; 27. Third control valve; 28. Second flow rate detection component; 29. Second supply pump; 30. Second filter; 31. Third pipeline; 311. Second insertion end; 32. New material barrel; 33. Third stirring component; 34. Fourth liquid level detection component; 35. Sprayer; 36. Third supply pump; 37. Third filter; 38. Fourth pipeline; 381. Third insertion end. Specific embodiments

[0036] Hereinafter, embodiments of the technical solutions of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined.

[0039] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0041] In the description of the embodiments of the present application, the term "plural" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0042] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "linkage", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0044] In the spraying process of the battery cell, since continuous spraying operation is adopted, continuous supply of paint is required. However, a large amount of paint cannot directly act on the battery cell but falls into the paint recovery tank. Since the internal component ratio of the recovered paint is inconsistent with that of the new paint, direct use will affect the insulation performance of the battery surface. Therefore, strict proportioning of the recovered paint and the new paint is required to meet the process requirements.

[0045] In order to maintain continuous spraying operation, a large amount of recovered paint needs to be quickly mixed with the new paint for reuse. However, in the related art, during the process of processing the recovered paint and the new paint, the recovered paint needs to be first proportioned with water in the proportioning tank and then placed in the working storage bucket. The overall proportioning time is long and cannot meet the continuous spraying operation.

[0046] Based on the above considerations, in order to solve the problem that the recycled paint and the new paint cannot meet the requirements of continuous spraying operation during the mixing process, a paint recycling device is designed. The paint recycling device includes a recovery tank, a recovery barrel, a proportioning barrel, a new material barrel, a first supply pump, a first proximity switch, a second supply pump, and a second proximity switch. Among them, the recovery tank is configured to recover the liquid spilled at the spray head, the recovery barrel is connected to the recovery tank, the proportioning barrel is connected to the recovery barrel, and the proportioning barrel is connected to the spray head. The new material barrel is connected to the proportioning barrel. The proportioning barrel is configured to transport the proportioned liquid to the spray head. The first supply pump is arranged between the recovery barrel and the proportioning barrel; the first proximity switch is arranged on the first supply pump and is configured to detect the pulse count of the first supply pump; the second supply pump is arranged between the new material barrel and the proportioning barrel; the second proximity switch is arranged on the second supply pump and is configured to detect the pulse count of the second supply pump.

[0047] In the technical solution of the embodiment of the present application, the recovered liquid and the new liquid in the new material barrel are proportioned and mixed according to a preset ratio through the proportioning barrel so that the proportioned liquid meets the usage requirements, and then the proportioned liquid is transported to the spray head to complete the spraying on the surface of the battery cell, so that the requirement of continuous spraying operation can be met, and the production efficiency is effectively improved.

[0048] According to some embodiments of the present application, Figure 1 is a structural schematic diagram of the paint recycling device in the present application. As Figure 1 shown, the present application provides a paint recycling device. The paint recycling device includes a recovery tank 10, a recovery barrel 15, a proportioning barrel 23, a new material barrel 32, a first supply pump 18, a first proximity switch (not marked in the figure), a second supply pump 29, and a second proximity switch (not marked in the figure). Among them, the recovery tank 10 is configured to recover the liquid spilled at the spray head 35. The recovery barrel 15 is connected to the recovery tank 10. The proportioning barrel 23 is connected to the recovery barrel 15, and the proportioning barrel 23 is connected to the spray head 35. The new material barrel 32 is connected to the proportioning barrel 23. The proportioning barrel 23 is configured to transport the proportioned liquid to the spray head 35. The first supply pump 18 is arranged between the recovery barrel 15 and the proportioning barrel 23; the first proximity switch is arranged on the first supply pump 18 and is configured to detect the pulse count of the first supply pump 18; the second supply pump 29 is arranged between the new material barrel 32 and the proportioning barrel 23; the second proximity switch is arranged on the second supply pump 29 and is configured to detect the pulse count of the second supply pump 29.

[0049] The overall recovery tank 10 in this embodiment can be in a funnel structure. Both the upper and lower ends of the recovery tank 10 are open structures. The upper end of the recovery tank 10 is located below the spray head 35. The lower end of the recovery tank 10 can be connected to the recovery barrel 15 through a pipeline. The recovery barrel 15 can be further connected to the proportioning barrel 23 through another pipeline. At the same time, the proportioning barrel 23 and the new material barrel 32 can also be connected through a pipeline.

[0050] During use, the liquid recovered in the recovery tank 10 flows into the recovery barrel 15. The liquid recovered in the recovery barrel 15 is transported to the mixing barrel 23 under the action of the first supply pump 18, and the new liquid in the new material barrel 32 is transported to the mixing barrel 23 under the action of the second supply pump 29. The liquid recovered in the recovery barrel 15 and the new liquid in the new material barrel 32 are in a preset ratio. For example, the recovered liquid and the new liquid are transported into the mixing barrel 23 at a ratio of 3:1. Of course, it can be understood that the above ratio of the recovered liquid to the new liquid is only an example, and the specific ratio can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0051] After the mixing is completed, the mixing barrel 23 transports the mixed liquid to the spray head 35 to complete the spraying on the surface of the battery cell, so as to meet the requirements of continuous spraying operations and effectively improve the production efficiency.

[0052] At the same time, since a first proximity switch is installed on the first supply pump 18 and a second proximity switch is installed on the second supply pump 29, when the first supply pump 18 and the second supply pump 29 each complete a stroke, each proximity switch will generate a pulse signal. During continuous production, by real-time monitoring the ratio of the pulse counts of the second supply pump 29 and the first supply pump 18, it is possible to recheck whether the flow rate of the liquid transported from the recovery barrel 15 to the mixing barrel 23 is normal, and to recheck whether the flow rate of the liquid transported from the new material barrel 32 to the mixing barrel 23 is normal.

[0053] Moreover, since the single reciprocating discharge volume of the first supply pump 18 and the second supply pump 29 is a fixed value, by multiplying the pulse counts of the first supply pump 18 and the second supply pump 29 by the reciprocating discharge volume, it is possible to calculate the amount of the recovered liquid transported by the first supply pump 18 into the mixing barrel 23, and to calculate the amount of the new liquid transported by the second supply pump 29 into the mixing barrel 23, and then it is possible to calculate whether the ratio of the new liquid to the recovered liquid in the mixing barrel 23 meets the requirements.

[0054] According to some embodiments of the present application, as Figure 1 shown, the paint recovery and utilization device further includes a first control valve 12, a first pipeline 14, and a plurality of first liquid level detection members 11; wherein, the first liquid level detection members 11 are arranged in the recovery tank 10, the first control valve 12 is arranged on the first pipeline 14, and the first pipeline 14 is configured to connect the recovery tank 10 and the recovery barrel 15.

[0055] The first control valve 12 in this embodiment can be a solenoid valve, a butterfly valve, etc., and the first liquid level detection member 11 can be a tuning fork liquid level sensor, a float type liquid level sensor, etc.

[0056] In this embodiment, three, four or other first liquid level detection members 11 can be arranged at intervals in the vertical direction from top to bottom in the recovery tank 10, and specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0057] During use, the liquid level position in the recovery tank 10 is detected by the first liquid level detection member 11. When the liquid level in the recovery tank 10 is at a high level, the first control valve 12 is opened so that the liquid in the recovery tank 10 flows into the recovery barrel 15; when the liquid level in the recovery tank 10 is at a low level, the first control valve 12 is closed.

[0058] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a liquid recovery pump 13, which is arranged in the first pipeline 14, and the liquid recovery pump 13 is located downstream of the first control valve 12 along the liquid flow direction in the first pipeline 14. In this way, with the power provided by the liquid recovery pump 13, it is convenient to transport the liquid in the recovery tank 10 to the recovery barrel 15.

[0059] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a first stirring member 16, which is arranged in the recovery barrel 15.

[0060] The first stirring member 16 in this embodiment may include a motor and a stirring paddle. The motor is fixed on the recovery barrel 15, the stirring paddle is arranged inside the recovery barrel 15, the output shaft of the motor is connected to the stirring paddle, and by driving the stirring paddle to rotate with the motor, the liquid in the stirring paddle can be fully mixed.

[0061] It should be noted that the structure of the above first stirring member is only an example. In other alternative solutions, other structures can also be adopted. For example, the first stirring member is a turbine type stirrer. The present application does not impose special restrictions on the specific structure of the first stirring member, as long as the above structure can achieve the purpose of the present application.

[0062] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a second liquid level detection member 17, which is arranged in the recovery barrel 15.

[0063] The second liquid level detection member 17 in this embodiment can be an optoelectronic liquid level sensor or the like.

[0064] In this embodiment, by arranging the second liquid level detection member 17 in the recovery barrel 15, it is convenient to detect the content of the liquid in the recovery barrel 15.

[0065] According to some embodiments of the present application, as Figure 1As shown, the paint recycling device further includes a second pipeline 22. Among them, a first supply pump 18 is arranged in the second pipeline 22, and the second pipeline 22 is configured to connect the recycling barrel 15 and the proportioning barrel 23. In this way, by the power provided by the first supply pump 18, it is convenient to transport the liquid in the recycling barrel 15 to the proportioning barrel 23.

[0066] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes at least one first filter 19. The first filter 19 is arranged in the second pipeline 22, and the first filter 19 is located downstream of the first supply pump 18 along the liquid flow direction in the second pipeline 22.

[0067] In this embodiment, one, two or the like of the first filters 19 can be provided, and specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0068] Refer to Figure 1 shown. By arranging the first filter 19 downstream of the first supply pump 18, in this way, the liquid transported to the proportioning barrel 23 can be filtered to prevent impurities from flowing into the proportioning barrel 23.

[0069] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a second control valve 20 and a first flow detection member 21. Among them, the second control valve 20 is located downstream of the first filter 19 along the liquid flow direction in the second pipeline 22; the second control valve 20 and the first flow detection member 21 are sequentially arranged in the second pipeline 22 along the liquid flow direction in the second pipeline 22.

[0070] The second control valve 20 in this embodiment can be a proportional control valve, and the first flow detection member 21 can be a flow sensor, and specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0071] During use, the first flow detection member 21 detects the flow rate of the recycled liquid in the second pipeline 22, and then controls the opening degree of the second control valve 20 according to the detected flow rate value, so as to realize real-time adjustment of the flow rate of the recycled liquid in the second pipeline 22, so that the flow rate in the second pipeline 22 meets the requirements.

[0072] According to some embodiments of the present application, as Figure 1 shown, the second pipeline 22 has a first insertion end 221. The first insertion end 221 is located in the recycling barrel 15, and the first insertion end 221 contacts the inner bottom surface of the recycling barrel 15.

[0073] Since the first insertion end 221 can contact the inner bottom surface of the recovery barrel 15, under the action of the first supply pump 18, the liquid on the inner bottom surface of the recovery barrel 15 can be pumped into the mixing barrel 23 as well.

[0074] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a second stirring member 24, and the second stirring member 24 is arranged in the mixing barrel 23.

[0075] In this embodiment, the structure of the second stirring member 24 can refer to the structure of the first stirring member 16 above, which will not be elaborated here.

[0076] By arranging the second stirring member 24 in the mixing barrel 23, it is convenient to stir the liquid in the mixing barrel 23.

[0077] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a third liquid level detection member 25, and the third liquid level detection member 25 is arranged in the mixing barrel 23.

[0078] In this embodiment, the third liquid level detection member 25 can refer to the second liquid level detection member 17 above, which will not be elaborated here.

[0079] By arranging the third liquid level detection member 25 in the mixing barrel 23, it is convenient to detect the liquid level in the mixing barrel 23.

[0080] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a heating member 26, and the heating member 26 is arranged in the mixing barrel 23.

[0081] In this embodiment, the heating member 26 can be a heating blanket, a heating wire, etc., and the heating member 26 can be wrapped around the side of the mixing barrel 23. When in use, by heating the liquid in the mixing barrel 23 with the heating member 26, the fluidity of the liquid in the mixing barrel 23 can be improved.

[0082] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a third pipeline 31. Among them, a second supply pump 29 is arranged in the third pipeline 31, and the third pipeline 31 is configured to communicate with the new material barrel 32 and the mixing barrel 23. In this way, with the power provided by the second supply pump 29, it is convenient to transport the liquid in the new material barrel 32 into the mixing barrel 23.

[0083] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes at least one second filter 30, and the second filter 30 is arranged in the third pipeline 31, and the second filter 30 is located downstream of the second supply pump 29 along the flow direction of the liquid in the third pipeline 31.

[0084] In this embodiment, one, two or more second filters 30 may be provided downstream of the second supply pump 29, and the specific number can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0085] In this embodiment, by providing the second filter 30 on the third pipeline 31, impurities in the liquid in the new material barrel 32 can be prevented from flowing into the proportioning barrel 23 through the third pipeline 31.

[0086] According to some embodiments of the present application, as Figure 1 shown, the coating recycling device further includes a third control valve 27 and a second flow detection member 28. Among them, the third control valve 27 is located downstream of the second filter 30 along the flow direction of the liquid in the third pipeline 31; the third control valve 27 and the second flow detection member 28 are sequentially arranged on the third pipeline 31 along the flow direction of the liquid in the third pipeline 31.

[0087] The third control valve 27 in this embodiment may refer to the above-mentioned second control valve 20, and the second flow detection member 28 may refer to the above-mentioned first flow detection member 21, which will not be elaborated here.

[0088] During use, the flow rate of the recycled liquid in the third pipeline 31 is detected by the second flow detection member 28, and then the opening degree of the third control valve 27 is controlled according to the detected flow rate value, so that the flow rate of the new liquid in the third pipeline 31 can be adjusted in real time.

[0089] According to some embodiments of the present application, as Figure 1 shown, the third pipeline 31 has a second insertion end 311, the second insertion end 311 is located inside the new material barrel 32, and the second insertion end 311 contacts the inner bottom surface of the new material barrel 32.

[0090] Since the second insertion end 311 can contact the inner bottom surface of the new material barrel 32, under the action of the second supply pump 29, the liquid on the inner bottom surface of the new material barrel 32 can also be pumped into the proportioning barrel 23.

[0091] According to some embodiments of the present application, as Figure 1 shown, the coating recycling device further includes a third stirring member 33, and the third stirring member 33 is arranged in the new material barrel 32.

[0092] The third stirring member 33 in this embodiment may refer to the above-mentioned first stirring member 16, which will not be elaborated here.

[0093] During use, by starting the third stirring member 33, the liquid in the new material barrel 32 can be conveniently stirred to prevent the liquid in the new material barrel 32 from depositing.

[0094] According to some embodiments of the present application, as Figure 1As shown, the paint recycling device further includes a fourth liquid level detector 34, and the fourth liquid level detector 34 is disposed in the new material barrel 32.

[0095] The fourth liquid level detector 34 in this embodiment may refer to the above-mentioned second liquid level detector 17, which will not be elaborated here.

[0096] During use, the liquid level in the new material barrel 32 can be conveniently detected by the fourth liquid level detector 34.

[0097] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes a third supply pump 36 and a fourth pipeline 38. The third supply pump 36 is disposed in the fourth pipeline 38, and the fourth pipeline 38 is configured to connect the proportioning barrel 23 and the spray head 35. In this way, with the power provided by the third supply pump 36, the liquid in the proportioning barrel 23 can be conveniently transported to the spray head 35.

[0098] According to some embodiments of the present application, as Figure 1 shown, the paint recycling device further includes at least one third filter 37. The third filter 37 is disposed in the fourth pipeline 38, and the third filter 37 is located downstream of the third supply pump 36 along the liquid flow direction in the fourth pipeline 38.

[0099] In this embodiment, one, two or more third filters 37 can be provided downstream of the third supply pump 36, which can be specifically determined according to actual situations, and the embodiments of this specification do not limit this.

[0100] During use, the liquid transported to the spray head 35 is filtered by the third filter 37 to prevent impurities in the liquid in the proportioning barrel 23 from being transported to the spray head 35, thereby affecting the quality of the spray head on the surface of the battery cell.

[0101] According to some embodiments of the present application, as Figure 1 shown, the fourth pipeline 38 has a third insertion end 381. The third insertion end 381 is located in the proportioning barrel 23, and the third insertion end 381 contacts the inner bottom surface of the proportioning barrel 23.

[0102] Since the third insertion end 381 can contact the inner bottom surface of the proportioning barrel 23, under the action of the third supply pump 36, the liquid on the inner bottom surface of the proportioning barrel 23 can also be transported to the spray head 35.

[0103] The present application also provides a paint recycling method, which is applied to the paint recycling device in any one of the embodiments of the present application. The method includes: Measuring the liquid level in the proportioning barrel by the third liquid level detector; When the liquid level in the proportioning barrel is lower than the preset value, recycled liquid is transported into the proportioning barrel through the recycling barrel, and new liquid is transported into the proportioning barrel through the new material barrel; Calculate the ratio of the pulse counts of the second supply pump between the new material barrel and the proportioning barrel and the first supply pump between the recycling barrel and the proportioning barrel. Under the condition that the ratio of the pulse counts is within the preset range, it is determined that the ratio of the new liquid and the recycled liquid in the proportioning barrel is normal.

[0104] In the technical solution of the embodiment of the present application, the liquid level in the proportioning barrel is measured by the third liquid level detection component. When the liquid level in the proportioning barrel is lower than the preset value, for example: when the liquid level in the proportioning barrel is lower than 5%-8% of the total volume of the liquid inside the proportioning barrel, the recycling barrel is used to transport recycled liquid into the proportioning barrel, and at the same time, the new material barrel is used to transport new liquid into the proportioning barrel to ensure that the liquid in the proportioning barrel is above the preset value, so that continuous spraying operations can be achieved.

[0105] When the liquid level in the proportioning barrel exceeds the set value, for example: when the liquid level in the proportioning barrel exceeds 85%-90% of the total volume of the liquid inside the proportioning barrel, the recycling barrel and the new material barrel stop supplying liquid to the proportioning barrel at the same time to prevent the liquid in the proportioning barrel from overflowing.

[0106] In this embodiment, a first proximity switch can be installed on the first supply pump, and a second proximity switch can be installed on the second supply pump. Since each stroke of the first supply pump and the second supply pump generates a pulse signal for each proximity switch, by monitoring the ratio of the pulse counts of the second supply pump and the first supply pump in real time during continuous production, it is possible to recheck whether the flow rates in the second pipeline and the third pipeline are normal.

[0107] At the same time, since the single reciprocating discharge volume of the first supply pump and the second supply pump is a fixed value, by multiplying the pulse counts of the first supply pump and the second supply pump by the reciprocating discharge volume, the amount of recycled liquid transported by the first supply pump into the proportioning barrel can be calculated, and the amount of new liquid transported by the second supply pump into the proportioning barrel can be calculated. Furthermore, it is possible to calculate whether the ratio of the new liquid and the recycled liquid in the proportioning barrel meets the requirements.

[0108] According to some embodiments of the present application, replenishing recycled liquid into the proportioning barrel through the recycling barrel and replenishing new liquid into the proportioning barrel through the new material barrel includes: Detect the flow rate Q1 of the recycled liquid transported from the recycling barrel into the proportioning barrel through the first flow detection component; Determine the valve opening degree O1 of the second control valve between the recycling barrel and the proportioning barrel according to Q1; Detect the flow rate Q2 of the new liquid transported from the new material barrel into the proportioning barrel through the second flow detection component; Determine the valve opening degree O2 of the third control valve between the new material barrel and the proportioning barrel according to Q2.

[0109] In this way, the flow rate Q1 can be adjusted in real time by adjusting the valve opening degree O1 of the second control valve. At the same time, the flow rate Q2 can be adjusted in real time by adjusting the valve opening degree O2 of the third control valve, so that the flow rate Q1 and the flow rate Q2 meet the requirements, and further make the content of the recycled liquid flowing into the mixing barrel and the content of the new liquid flowing into the mixing barrel meet the requirements.

[0110] According to some embodiments of the present application, conveying the recycled liquid from the recycling barrel to the mixing barrel includes: Determine whether the liquid level in the recycling barrel is lower than a preset value. If it is lower, close the first supply pump between the recycling barrel and the mixing barrel; if it is not lower than the preset value, turn on the first supply pump between the recycling barrel and the mixing barrel.

[0111] In this embodiment, when the liquid level in the recycling barrel is lower than the preset value, for example, when the liquid level in the recycling barrel is lower than 5%-8% of the total volume of the liquid inside the recycling barrel, at this time, the alarm sounds, and at the same time, the first supply pump and the second control valve are closed, and the recycling barrel no longer conveys liquid to the mixing barrel 23. All the liquids required for work are provided by the new material barrel 32 to the mixing barrel 23, and then conveyed from the mixing barrel 23 to the spray head 35.

[0112] According to some embodiments of the present application, conveying the new liquid from the new material barrel to the mixing barrel includes: Determine whether the liquid level in the new material barrel is lower than a preset value. If it is lower, close the first supply pump between the recycling barrel and the mixing barrel, and convey the liquid through the mixing barrel to the spray head; If it is not lower than the preset value, turn on the first supply pump and the second supply pump between the new material barrel and the mixing barrel.

[0113] The preset value in this embodiment can be that the liquid level in the new material barrel is lower than 5%-8% of the total volume of the liquid inside the new material barrel, and specifically can be determined according to the actual situation, and this specification embodiment does not limit this.

[0114] By judging the liquid level situation in the new material barrel, it is avoided that when the liquid in the new material barrel is insufficient, the ratio of the recycled liquid and the new liquid in the mixing barrel does not meet the standard.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A paint recycling device, characterized in that, Comprising: A recovery tank configured to recover the liquid spilled at the nozzle. A recovery barrel communicating with the recovery tank. A proportioning barrel communicating with the recovery barrel and also communicating with the nozzle. A new material barrel communicating with the proportioning barrel, and the proportioning barrel is configured to convey the proportioned liquid to the nozzle. A first supply pump disposed between the recovery barrel and the proportioning barrel. A first proximity switch disposed on the first supply pump and configured to detect the pulse count of the first supply pump. A second supply pump disposed between the new material barrel and the proportioning barrel. A second proximity switch disposed on the second supply pump and configured to detect the pulse count of the second supply pump.

2. The paint recycling device according to claim 1, wherein The paint recovery and utilization device further includes a first control valve, a first pipeline, and multiple first liquid level detection components. The first liquid level detection components are disposed in the recovery tank, the first control valve is disposed on the first pipeline, and the first pipeline is configured to connect the recovery tank and the recovery barrel.

3. The paint recycling device according to claim 2, wherein The paint recovery and utilization device further includes a liquid recovery pump disposed on the first pipeline, and the liquid recovery pump is located downstream of the first control valve along the liquid flow direction in the first pipeline.

4. The paint recycling device according to claim 1, characterized in that, The paint recovery and utilization device further includes a first stirring member disposed in the recovery barrel.

5. The paint recycling device according to claim 1 or 4, characterized in that, The paint recovery and utilization device further includes a second liquid level detection component disposed in the recovery barrel.

6. The paint recycling device according to claim 1, characterized in that, The paint recovery and utilization device further includes a second pipeline, and the first supply pump is disposed on the second pipeline. The second pipeline is configured to connect the recovery barrel and the proportioning barrel.

7. The paint recycling device according to claim 6, characterized in that, The paint recovery and utilization device further includes at least one first filter disposed on the second pipeline, and the first filter is located downstream of the first supply pump along the liquid flow direction in the second pipeline.

8. The paint recycling device according to claim 7, characterized in that, The paint recovery and utilization device further includes a second control valve and a first flow rate detection component. The second control valve is located downstream of the first filter along the liquid flow direction in the second pipeline. The second control valve and the first flow rate detection component are sequentially disposed on the second pipeline along the liquid flow direction in the second pipeline.

9. The paint recycling device according to any one of claims 6 to 8, characterized in that The second pipeline has a first extending end located in the recovery barrel and contacting the inner bottom surface of the recovery barrel.

10. The paint recycling device according to claim 1 or 6, characterized in that, The paint recovery and utilization device further includes a second stirring member disposed in the proportioning barrel.

11. The paint recycling device according to claim 10, characterized in that, The paint recovery and utilization device further includes a third liquid level detection component disposed in the proportioning barrel.

12. The paint recycling device according to claim 11, wherein, The paint recovery and utilization device further includes a heating member disposed in the proportioning barrel.

13. The paint recycling device according to claim 1, characterized in that, The paint recovery and utilization device further includes a third pipeline, and the second supply pump is disposed on the third pipeline. The third pipeline is configured to connect the new material barrel and the proportioning barrel.

14. The paint recycling device according to claim 13, characterized in that, The paint recycling device further includes at least one second filter, the second filter is arranged in the third pipeline, and the second filter is located downstream of the second supply pump along the liquid flow direction in the third pipeline.

15. The paint recycling device according to claim 14, wherein, The paint recycling device further includes a third control valve and a second flow detection member; The third control valve is located downstream of the second filter along the liquid flow direction in the third pipeline; the third control valve and the second flow detection member are sequentially arranged in the third pipeline along the liquid flow direction in the third pipeline.

16. The paint recycling device according to any one of claims 13 to 15, characterized in that, The third pipeline has a second insertion end, the second insertion end is located in the new material barrel, and the second insertion end contacts the inner bottom surface of the new material barrel.

17. The paint recycling device according to claim 1 or 13, characterized in that, The paint recycling device further includes a third stirring member, and the third stirring member is arranged in the new material barrel.

18. The coating recycling device according to claim 17, wherein, The paint recycling device further includes a fourth liquid level detection member, and the fourth liquid level detection member is arranged in the new material barrel.

19. The paint recycling device according to claim 1, wherein, The paint recycling device further includes a third supply pump and a fourth pipeline, the third supply pump is arranged in the fourth pipeline, and the fourth pipeline is configured to communicate the proportioning barrel and the spray head.

20. The paint recycling device according to claim 19, wherein, The paint recycling device further includes at least one third filter, the third filter is arranged in the fourth pipeline, and the third filter is located downstream of the third supply pump along the liquid flow direction in the fourth pipeline.

21. The paint recycling device according to claim 19 or 20, characterized in that, The fourth pipeline has a third insertion end, the third insertion end is located in the proportioning barrel, and the third insertion end contacts the inner bottom surface of the proportioning barrel.

22. A method for recycling coatings, which is applied to the coating recycling device according to any one of claims 1 to 21, and is characterized in that, The method includes: Measuring the liquid level in the proportioning barrel through a third liquid level detection member; Under the condition that the liquid level in the proportioning barrel is lower than a preset value, conveying recycled liquid into the proportioning barrel through the recycling barrel, and conveying new liquid into the proportioning barrel through the new material barrel; Calculating the pulse number ratio of the second supply pump between the new material barrel and the proportioning barrel and the first supply pump between the recycling barrel and the proportioning barrel, and under the condition that the pulse number ratio is within a preset range, it is determined that the ratio of the new liquid and the recycled liquid in the proportioning barrel is normal.

23. The paint recycling method according to claim 22, wherein The step of supplementing recycled liquid into the proportioning barrel through the recycling barrel and supplementing new liquid into the proportioning barrel through the new material barrel includes: Detecting the flow rate Q1 of the recycled liquid conveyed from the recycling barrel into the proportioning barrel through a first flow detection member; Determining the valve opening degree O1 of the second control valve between the recycling barrel and the proportioning barrel according to Q1; Detecting the flow rate Q2 of the new liquid conveyed from the new material barrel into the proportioning barrel through a second flow detection member; Determining the valve opening degree O2 of the third control valve between the new material barrel and the proportioning barrel according to Q2.

24. The paint recycling method according to claim 22, characterized in that, The step of conveying recycled liquid into the proportioning barrel through the recycling barrel includes: Closing the first supply pump between the recycling barrel and the proportioning barrel under the condition that the liquid level in the recycling barrel is lower than a preset value; Opening the first supply pump between the recycling barrel and the proportioning barrel under the condition that the liquid level in the recycling barrel is greater than or equal to a preset value.

25. The paint recycling method according to claim 22, wherein, The step of conveying new liquid into the proportioning barrel through the new material barrel includes: Closing the first supply pump between the recycling barrel and the proportioning barrel under the condition that the liquid level in the new material barrel is lower than a preset value, and conveying liquid from the proportioning barrel to the spray head; Under the condition that the liquid level in the new material barrel is not lower than the preset value, turn on the first supply pump and the second supply pump between the new material barrel and the proportioning barrel.

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