Spraying circulating system, wire cutting machine and cutting factory

Abstract

The utility model provides a spray circulation system, wire cutting machine and cutting factory, including first liquid path subassembly and second liquid path subassembly, the first liquid path subassembly acts on the work area of cutting device, the second liquid path subassembly is located the outside of cutting device and is provided on the infusion pipeline of first liquid path subassembly, and the second liquid path subassembly acts on the work area of cutting device. The second liquid path assembly is used for providing new cutting liquid for the first liquid path assembly; by arranging the first liquid path assembly and the second liquid path assembly, the second liquid path assembly can be controlled to participate in the spraying circulation system according to the cutting process in the cutting process, new cutting liquid is provided for the spraying circulation system, and then the content of silicon powder in the circulating cutting liquid is adjusted, so that the cutting wire net keeps the optimal cutting performance; and the occurrence of wire breaking or wire jumping phenomena is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, and particularly relates to a spray circulation system, a wire cutting machine and a cutting factory. Background Art

[0002] A wire cutting machine refers to a device that realizes cutting (such as truncating, squaring, slicing, etc.) of a workpiece to be cut by generating relative movement between a cutting wire and the workpiece to be cut (such as photovoltaic silicon, sapphire, semiconductor, silicon carbide, magnetic material, etc.). Taking the slicing of a silicon rod by a slicing machine as an example, during wire cutting, the silicon rod to be cut is fixed on a feeding mechanism, and the feeding mechanism drives the silicon rod to move relative to the wire mesh to realize slicing. During the cutting process, in order to ensure the cutting performance of the cutting wire, it is necessary to continuously spray cutting fluid onto the wire mesh. One is to cool the cutting wire, the second is to disperse and wash the cut silicon powder, and the third is to lubricate the wire mesh. The silicon powder during the cutting process will continuously enter the cutting fluid circulation system. In the prior art, the cutting fluid circulation usually uses devices such as a liquid supply cylinder and a liquid supply pump to provide circulating cutting fluid for the cutting equipment, and the liquid supply cylinder participates in the operation of this closed-loop system. During the working process, the cutting fluid containing silicon powder will pollute the liquid supply cylinder. Moreover, during one cutting, as the cutting progresses, the silicon powder content in the circulating cutting fluid will become larger and larger, increasing the risk of wire jumping or wire breaking in the wire mesh during the spraying process. Therefore, a new cutting fluid circulation system is urgently needed. Summary of the Utility Model

[0003] In view of the above technical problems, the technical solution of the utility model provides a spray circulation system, a wire cutting machine and a cutting factory, which can continuously provide new cutting fluid during the cutting process, and is beneficial to improving the cutting quality and cutting efficiency.

[0004] The utility model provides a spray circulation system, which includes at least one first liquid path component for providing cutting fluid to a cutting area, and a second liquid path component for providing new cutting fluid to the first liquid path component. All the first liquid path components are connected in parallel with each other and are respectively connected to the second liquid path component.

[0005] Further optimization of the technical solution of the utility model, the first liquid path component includes a liquid collecting device and a spraying device. The liquid collecting device is used to collect the cutting fluid after spraying; and the liquid collecting device is connected to the spraying device through a pipeline, and a new cutting fluid interface is arranged on the pipeline. The liquid supply end of the second liquid path component is connected to the new cutting fluid interface.

[0006] Further optimization of the technical solution of the utility model, the liquid collecting device includes a liquid collecting pool, a liquid discharge port and a coarse filtering unit. The coarse filtering unit is arranged at the outlet of the liquid collecting pool, and the liquid discharge port is used to discharge the cutting fluid in the liquid collecting pool to a waste liquid pool.

[0007] For further optimization of the technical solution of the present utility model, the liquid discharge port is arranged in the liquid collection pool, and an overflow valve is arranged on the liquid discharge port. The overflow valve is connected to the waste liquid pool through a liquid delivery pipeline.

[0008] For further optimization of the technical solution of the present utility model, the liquid collection device further includes at least one funnel cylinder body, and the funnel cylinder body is arranged below the outlet of the liquid collection pool; the liquid collection device is connected to the filtering device through the funnel cylinder body.

[0009] For further optimization of the technical solution of the present utility model, the first liquid path assembly further includes a filtering device and a heat exchanger, and the filtering device and the heat exchanger are sequentially arranged between the liquid collection device and the spraying device, so that the cutting fluid circulates in the first liquid path assembly.

[0010] For further optimization of the technical solution of the present utility model, a first control valve is arranged on the liquid outlet pipeline of the liquid collection device, and the second liquid path assembly is arranged downstream of the first control valve.

[0011] For further optimization of the technical solution of the present utility model, the second liquid path assembly includes a waste liquid pool, a waste liquid treatment system and a water purification pool which are sequentially connected. The waste liquid pool is connected to the liquid discharge port on the liquid collection device through a liquid delivery pipeline, and the water purification pool is connected to the liquid delivery pipeline downstream of the first control valve through a liquid supply pump.

[0012] For further optimization of the technical solution of the present utility model, the liquid discharge port of the liquid collection device is communicated with the waste liquid pool, and a second control valve is arranged on the liquid delivery pipeline between the liquid discharge port and the waste liquid pool. A third control valve is arranged between the liquid supply pump and the liquid delivery pipeline downstream of the first control valve.

[0013] For further optimization of the technical solution of the present utility model, branch flow meters are respectively arranged on the liquid delivery pipeline connecting the liquid discharge port and the waste liquid pool and on the liquid delivery pipeline at the liquid outlet of the water purification pool; a main flow meter and a density meter are arranged on the first liquid path assembly, and the density meter is used for detecting the density of the cutting fluid.

[0014] A wire cutting machine includes a cutting chamber and the above-mentioned spraying and circulating system. The first liquid path assembly is arranged on the cutting chamber, and a liquid discharge pipeline quick connector corresponding to the liquid discharge port and a liquid inlet pipeline quick connector for inputting the cutting fluid in the second liquid path assembly are arranged on the cutting chamber. The second liquid path assembly is respectively connected to the cutting chamber through the liquid discharge pipeline quick connector and the liquid inlet pipeline quick connector.

[0015] A cutting factory is characterized by including a plurality of the above-mentioned wire cutting machines or the above-mentioned spraying and circulating system.

[0016] Compared with the prior art, the advantages of the technical solution of the present utility model are as follows:

[0017] By providing the first liquid path assembly and the second liquid path assembly, new cutting fluid can be continuously provided for the spraying device during the cutting and spraying process. The sprayed cutting fluid is directly discharged from the system and processed by the second liquid path assembly into new cutting fluid to participate in the circulation again, so that the spraying device always sprays new cutting fluid, reducing the impact of the sprayed cutting fluid on the working performance or cutting quality of the cutting wire mesh; this spraying circulation system eliminates the operations such as injecting liquid, discharging liquid, and cleaning the liquid supply cylinder in the prior art, improving the use efficiency of the cutting equipment. Moreover, for each existing cutting device to complete a cutting cycle, it is necessary to inject and discharge liquid into the liquid supply cylinder, and it is also necessary to clean and maintain the liquid supply cylinder regularly. By designing the first liquid path assembly and the second liquid path assembly, the liquid supply device of each cutting equipment is simplified, and the second liquid path assembly for providing new cutting fluid is shared by the entire cutting factory, reducing the hardware cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be described in more detail below based on embodiments with reference to the drawings.

[0019] Figure 1 is a schematic structural diagram of the spraying circulation system in the technical solution of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the spraying circulation system in the cutting factory in the technical solution of the present utility model.

[0021] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0022] Reference Numeral Explanation:

[0023] 1 - First liquid path assembly; 11 - Spraying device; 12 - Liquid collecting device; 13 - Filtering device; 14 - Heat exchanger; 2 - Second liquid path assembly; 21 - Waste liquid pool; 22 - Waste liquid treatment system; 23 - Clean water pool; 24 - Liquid supply pump; 3 - First control valve; 4 - Second control valve; 5 - Third control valve; 6 - Cutting device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0025] The terms used in the embodiments of the present utility model are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The singular forms of "a", "the", and "said" used in the embodiments of the present utility model and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0026] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of another identical element in the commodity or system including the said element. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] The following will be combined with the attached Figure 1-2 to further illustrate the present utility model.

[0028] In the field of photovoltaic cutting technology, during the processing of silicon rods, a wire cutting device is usually used. Since a large amount of heat is generated when the high-speed rotating cutting wire cuts the silicon rod, and at the same time, cutting powder (silicon powder) is also generated. In order to ensure the working performance of the cutting wire, cutting fluid is usually sprayed on the cutting wire mesh. The first purpose is to lubricate and cool the cutting wire, silicon rod and other mechanisms; the second is to wash away the silicon powder generated during the cutting process. This technical solution provides a spray circulation system, including a first liquid path component 1 and a second liquid path component 2. The first liquid path component 1 acts on the working area of the cutting device 6 and continuously provides cutting fluid for the cutting area. The second liquid path component 2 is located outside the cutting device 6 and is connected to the first liquid path component 1 through an infusion pipeline. The second liquid path component 2 can continuously provide new cutting fluid for the first liquid path component 1 to maintain the working performance of the cutting wire mesh. During the cutting process, the cutting fluid containing silicon powder generated in the cutting device flows back to the second liquid path component 2. After being processed into new cutting fluid by the second liquid path component 2, it is then re-injected into the first liquid path component 1 to participate in the cycle. In this way, new cutting fluid can be continuously provided for the cutting device, and the old cutting fluid is directly discharged into the waste liquid pool, so as to keep the cutting wire mesh in the best cutting performance, reduce the occurrence of wire breakage or wire jumping, and reduce the risk of scratches on the cutting surface, which is beneficial to improving the cutting quality and cutting efficiency.

[0029] This spray circulation system eliminates the operations of injecting liquid, discharging liquid, and cleaning the liquid supply cylinder in the prior art, and improves the use efficiency of the cutting equipment. Because in the prior art, after each cutting cycle is completed, the liquid supply cylinder needs to be injected with liquid and discharged, and the liquid supply cylinder needs to be cleaned and maintained regularly. By designing the first liquid path component and the second liquid path component, the liquid supply device of each cutting equipment is simplified, and the entire cutting factory shares a set of second liquid path components that provide new cutting fluid, reducing the hardware cost.

[0030] <Example 1>

[0031] As Figure 1 shown, the spray circulation system includes at least one first liquid path component acting on the cutting area and a second liquid path component that provides new cutting fluid for the first liquid path component. All the first liquid path components are connected in parallel with each other and are respectively connected to the second liquid path component, and do not affect each other during operation. During the cutting process, the second liquid path component can continuously provide new cutting fluid for the first liquid path component and can timely recover and process the cutting fluid containing silicon powder.

[0032] Specifically, as shown in the figure, the first liquid path component includes a liquid collection device and a spraying device connected by an infusion pipeline. The liquid collection device is used to collect the cutting fluid after spraying. And the liquid collection device is connected to the spraying device through a pipeline, and a new cutting fluid interface is provided on the pipeline. The liquid supply end of the second liquid path component is connected to the new cutting fluid interface, so that new cutting fluid can be input during the spraying process to adjust or control the content of silicon powder in the circulating cutting fluid of the first liquid path component, keeping the silicon powder content within a relatively low range, thereby improving the cutting quality. In this embodiment, since a first control valve is provided between the liquid collection device and the new cutting fluid interface in the first liquid path component, when a failure occurs in the liquid supply of the second liquid path component, the first control valve can be opened to achieve self-circulation. Therefore, a filtering device, a heat exchanger, etc. can be selectively connected to the component to process the cutting fluid in the circulating part. In this embodiment, the description is made with a filtering device and a heat exchanger connected. When applied to a specific wire cutting machine, the cutting fluid sprayed by the spraying device is collected at the liquid collection end of the liquid collection device. The liquid outlet end of the liquid collection device 2 is connected to the inlet of the filtering device 4 through a liquid supply pump (the liquid supply pump can provide power for the self-circulation of the cutting fluid in the first liquid path component), and the outlet of the filtering device 4 is connected to the inlet of the spraying device 1 through a heat exchanger, thus forming a closed-loop system for the self-circulation of the cutting fluid in the first liquid path component. In this embodiment, the first liquid path component can also be the main part, and the second liquid path component can be set through the new cutting fluid interface, and new cutting fluid can be input at any time according to the requirements of the first liquid path circulation component to dilute or replace the old cutting fluid in the first liquid path component.

[0033] In the corresponding embodiment, the liquid collection device includes a liquid collection pool, a liquid discharge port, and a coarse filtration unit. The coarse filtration unit is arranged at the outlet of the liquid collection pool. The liquid discharge port is used to discharge the cutting fluid in the liquid collection pool. By setting a coarse filtration device, impurities or foreign objects in the cutting fluid can be preliminarily filtered. Preferably, the liquid discharge port is arranged in the liquid collection pool, and an overflow valve is arranged on the liquid discharge port. The overflow valve is connected to an external waste liquid pool through an infusion pipeline. By arranging an overflow valve on the liquid discharge port, the overflow valve is higher than the bottom surface of the liquid collection pool. Only when the liquid level in the liquid collection pool rises to the height of the overflow valve can the cutting fluid containing silicon powder after spraying be discharged. Specifically, during the cutting process, when the second liquid path component inputs new cutting fluid into the first liquid path component, since the volume of the cutting fluid in the first liquid path component is certain, as the volume of the cutting fluid increases, the liquid level of the cutting fluid in the liquid collection pool rises, and the cutting fluid containing silicon powder will directly flow into the external waste liquid pool through the overflow valve, thereby realizing the replacement of the cutting fluid in the first liquid path component or the control of the silicon powder content in the cutting fluid, which is beneficial to improving the spraying quality of the cutting fluid.

[0034] Preferably, the liquid collecting device further includes at least one funnel cylinder body, which is arranged below the outlet of the liquid collecting pool, and the liquid collecting device is connected to the filtering device through the funnel cylinder body. By providing the funnel cylinder body, it is beneficial to stabilize the supply of the cutting fluid in the first liquid path assembly to the spraying device, and can provide a certain amount of cutting fluid for the self-circulation of the cutting fluid in the first liquid path assembly. At the same time, the overall volume of the spraying circulation system can also be adjusted by changing the number or volume of the funnel cylinder bodies 23.

[0035] In this embodiment, through the design of the first liquid path assembly and the second liquid path assembly, on the basis that the first liquid path assembly satisfies self-circulation, the cutting fluid in the first liquid path assembly can be adjusted at any time through the second liquid path assembly as needed, realizing automatic switching between two modes in the spraying circulation system. For the convenience of description, it is described in combination with the second control valve on the liquid delivery pipeline of the drain port and the third control valve on the liquid supply pipeline of the second liquid path assembly. The specific working method of the technical solution of this embodiment is to close the second control valve, open the first control valve and the third control valve, and use the liquid supply pump arranged in the second liquid path assembly to provide new cutting fluid for the first liquid path assembly, so that the liquid delivery pipeline of the first liquid path assembly is filled with cutting fluid, and then close the third control valve, and realize the self-circulation in the first liquid path assembly through the liquid supply pump. Moreover, during the cutting process, open the second control valve and the third control valve as needed to adjust the silicon powder content in the cutting fluid of the first liquid path assembly.

[0036] <Embodiment 2>

[0037] This embodiment mainly aims at the implementation mode in which the first liquid path assembly cannot achieve self-circulation. A first control valve is arranged on the liquid outlet pipeline of the liquid collecting device, which can cut off the self-circulation in the first liquid path assembly, and the second liquid path assembly is arranged downstream of the first control valve. Specifically, the second liquid path assembly includes a waste liquid pool, a waste liquid treatment system and a clean water pool connected in sequence. The waste liquid pool is connected to the drain port on the liquid collecting device through a liquid delivery pipeline, and the clean water pool is connected to the liquid delivery pipeline downstream of the first control valve through a liquid supply pump. In this way, the new cutting fluid provided by the second assembly will directly act on the spraying device, and then after spraying, it is recycled through the liquid collecting device and directly input into the waste liquid pool. Preferably, the waste liquid pool is a trench, which is treated and purified by the waste liquid treatment system, and then input into the clean water pool to provide continuous cutting fluid for the first liquid path assembly, realizing the cutting fluid circulation between the first liquid path assembly and the second liquid path assembly. Thus, new cutting fluid is continuously sprayed in the spraying device, ensuring the best spraying quality and reducing the influence on the cutting wire mesh and cutting quality due to the cutting fluid.

[0038] In order to facilitate the control of the amount of newly input cutting fluid in the spray circulation system, branch flow meters are respectively arranged on the liquid delivery pipeline connecting the liquid discharge port and the waste liquid pool and on the liquid delivery pipeline at the liquid outlet of the clean water pool in this technical solution; a main flow meter is arranged on the first liquid path assembly. The branch flow meters can count the amount of newly supplemented cutting fluid and the discharged old cutting fluid, and thus can calculate the dilution ratio of the old cutting fluid. By setting the main flow meter, the spraying state of the spraying device can be monitored, and the spraying condition can be adjusted according to the monitored data. For example, when the main flow meter detects a sudden decrease in the flow rate, on the premise that the working conditions of other units remain unchanged, it can be timely known that there is a fault in the liquid delivery pipeline and timely maintenance can be carried out. The controller can adjust the valve opening degree on the liquid supply pipeline according to the feedback of the main flow meter to make the cutting fluid sprayed by the spraying device 11 stable at a certain flow rate value.

[0039] In addition, by arranging a densitometer on the first liquid path assembly, the density of the cutting fluid in the cutting fluid circulation system can be detected in real time. By obtaining the density value of the cutting fluid, the concentration of silicon powder in the circulating cutting fluid can be calculated (using the density formula and the molar concentration formula). By setting a fixed safety density value or a safety silicon powder concentration value in the controller of the cutting fluid circulation system (when setting the concentration value, the conversion formula needs to be programmed into the controller, and when setting the density value, only the safety density value corresponding to a certain silicon powder concentration needs to be calculated), the supplement amount of the newly input cutting fluid in the circulating cutting fluid can be controlled. In this way, the cutting fluid circulation system is more intelligent during operation, and spraying cutting operations can be carried out using the cutting fluid with the best performance.

[0040] A wire cutting machine, in cooperation with the spray circulation system in the above embodiment, arranges the first liquid path assembly 1 on the cutting chamber, and a liquid discharge pipeline quick connector corresponding to the liquid discharge port and an inlet pipeline quick connector for the input of the cutting fluid in the second liquid path assembly are arranged on the cutting chamber. This technical solution can change the manufacturing method of the existing wire cutting machine, without the need to set a liquid supply device in the cutting equipment, and only need to reserve a liquid discharge pipeline quick connector and an inlet pipeline quick connector on the cutting equipment. When the wire cutting machine is installed in the workshop, the liquid discharge pipeline quick connector is directly connected to the waste liquid pool through a pipeline, and the inlet pipeline quick connector is connected to the clean water pool through a pipeline. When the wire cutting machine is working, it can continuously supply the cutting fluid for the spraying device and discharge the sprayed cutting fluid for centralized treatment.

[0041] The technical solution of this application is as Figure 2As shown in the figure, a cutting factory is also provided, which includes a number of wire cutting machines connected in parallel. Each wire cutting machine is provided with a first liquid circuit component, and the second liquid circuit component is respectively connected to all the first liquid circuit components. During operation, a liquid supply pump is provided on the second liquid circuit component, which can keep a high hydraulic pressure on the liquid delivery pipeline all the time. Therefore, only by opening the new cutting liquid interface on the corresponding first liquid circuit component, the second cutting component can continuously input new cutting liquid for it, so that the spraying device always maintains the best spraying state, reducing the risk of wire breakage or wire jumping caused by too high silicon powder content in the cutting liquid, and ensuring the cutting efficiency and cutting quality.

[0042] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A spray circulation system, characterized in that: It comprises at least one first fluid circuit component for providing cutting fluid to the cutting area, and a second fluid circuit component for providing new cutting fluid to the first fluid circuit component. All the first fluid circuit components are connected in parallel with each other and are respectively connected with the second fluid circuit components.

2. The spray circulation system according to claim 1, characterized in that: The first liquid circuit component includes a liquid collecting device and a spraying device, the liquid collecting device is used to collect the cutting liquid after spraying; and the liquid collecting device is connected to the spraying device through a pipeline, and a new cutting liquid interface is provided on the pipeline, and the liquid supply end of the second liquid circuit component is connected to the new cutting liquid interface.

3. The spray circulation system according to claim 2, characterized in that: The liquid collecting device comprises a liquid collecting pool, a liquid discharge port and a coarse filtering unit. The coarse filtering unit is arranged at the outlet of the liquid collecting pool. The liquid discharge port is used to discharge the cutting liquid in the liquid collecting pool.

4. The spray circulation system according to claim 3, characterized in that: The liquid discharge port is arranged in the liquid collecting pool, and an overflow valve is arranged on the liquid discharge port.

5. The spray circulation system according to claim 3, characterized in that: The first liquid circuit assembly further includes a filtering device, and the liquid collecting device further includes at least one funnel cylinder, and the funnel cylinder is arranged below the outlet of the liquid collecting tank; the liquid collecting device is connected to the filtering device through the funnel cylinder.

6. The spray circulation system according to claim 2, characterized in that: The first liquid circuit assembly further includes a filter device and a heat exchanger, and the filter device and the heat exchanger are sequentially arranged between the liquid collecting device and the spraying device, so that the cutting fluid circulates in the first liquid circuit assembly.

7. The spray circulation system according to any one of claims 2 to 6, characterized in that: A first control valve is arranged on the liquid outlet pipeline of the liquid collecting device, and the second liquid circuit component is arranged downstream of the first control valve.

8. The spray circulation system according to claim 7, characterized in that: The second liquid circuit component includes a waste liquid pool, a waste liquid treatment system and a clean water pool connected in sequence. The waste liquid pool is connected to the discharge port on the liquid collecting device through an infusion pipeline, and the clean water pool is connected to the infusion pipeline downstream of the first control valve through a liquid supply pump.

9. The spray circulation system according to claim 8, characterized in that: The discharge port of the liquid collecting device is connected to the waste liquid pool, and a second control valve is arranged on the liquid infusion pipeline between the discharge port and the waste liquid pool, and a third control valve is arranged between the liquid supply pump and the liquid infusion pipeline downstream of the first control valve.

10. The spray circulation system according to claim 9, characterized in that: Branch flowmeters are respectively provided on the infusion pipeline connecting the discharge port and the waste liquid pool and on the infusion pipeline of the clean water pool outlet; a main flowmeter and a density meter are provided on the first liquid circuit assembly, and the density meter is used to detect the density of the cutting liquid.

11. A wire cutting machine, characterized in that: It includes a cutting chamber and a spray circulation system as described in any one of claims 1 to 10, wherein the first liquid circuit component is arranged on the cutting chamber, and the cutting chamber is provided with a discharge pipe quick interface corresponding to the discharge port and an inlet pipe quick interface for inputting cutting fluid in the second liquid circuit component, and the second liquid circuit component is connected to the cutting chamber through the discharge pipe quick interface and the inlet pipe quick interface respectively.

12. A cutting factory, characterized in that: It comprises several wire cutting machines as claimed in claim 11 or a spray circulation system as claimed in any one of claims 1 to 10.

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