A spraying structure and a linear cutting machine

Abstract

The utility model relates to processing device technical field, especially a kind of spraying structure and linear cutting machine. First spray pipe is equipped with liquid inlet and liquid outlet in spraying structure;Sealing plate is located in the upside of deflector, sealing plate and deflector are connected with first spray pipe respectively, and sealing plate, deflector and first spray pipe form liquid storage area between, and liquid storage area is communicated with liquid outlet;Flow regulating plate is connected with the side of sealing plate away from first spray pipe, and flow regulating plate, sealing plate end portion away from first spray pipe and the end portion of deflector away from first spray pipe form drainage passage between;The horizontal distance between the first end surface of flow regulating plate away from first spray pipe and the end surface of oppositely arranged deflector away from first spray pipe is L, and 1mm≤L≤5mm.L is set to above-mentioned range, the flow distance of cutting fluid on deflector after flowing out through flow regulating plate is controlled, so that the entire liquid curtain flowing out from spraying structure is uniform in thickness, and liquid flow is continuous.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a spray structure and a wire cutting machine. Background Technology

[0002] Wire EDM is a machining method that uses a high-speed reciprocating cutting wire that moves relative to the workpiece (such as photovoltaic silicon rods, semiconductor silicon rods, silicon carbide, sapphire, magnetic materials, etc.) to cut the workpiece. During the cutting process, a cutting fluid, such as slurry, is evenly sprayed onto the cutting wire. This fluid cools the wire, lubricates it, and removes powder and other impurities generated during cutting. However, existing spraying structures commonly suffer from uneven spraying and fluid flow interruptions, affecting the total thickness variation (TTV) of the workpiece. Utility Model Content

[0003] In view of this, the present invention proposes a spray structure and a wire cutting machine, aiming to partially or completely solve the technical problems of uneven spraying and broken liquid flow in existing spray structures, which affect the TTV of the workpiece to be cut.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: In a first aspect, embodiments of the present invention provide a spray structure, the spray structure comprising: The first spray pipe is equipped with a liquid inlet and a liquid outlet; A sealing plate and a guide plate are provided, with the sealing plate located above the guide plate. The sealing plate and the guide plate are respectively connected to the first spray pipe. A liquid storage area is formed between the sealing plate, the guide plate, and the first spray pipe, and the liquid storage area is connected to the liquid outlet. A flow regulating plate is connected to the side of the sealing plate away from the first spray pipe, and a drainage channel is formed between the flow regulating plate, the end of the sealing plate away from the first spray pipe, and the end of the guide plate away from the first spray pipe. The horizontal distance between the first end face of the flow regulating plate away from the first spray pipe and the end face of the guide plate away from the first spray pipe is L, where 1mm≤L≤5mm.

[0005] In some embodiments, the guide plate includes a first guide portion facing the sealing plate and forming the drainage channel with the sealing plate and the flow regulating plate; the flow regulating plate further includes a second end face facing the first guide portion and forming the channel wall of the drainage channel, the second end face being an inclined surface, and the distance between the end of the second end face near the first spray pipe and the first guide portion being greater than the distance between the other end of the second end face away from the first spray pipe and the first guide portion.

[0006] In some embodiments, the sealing plate includes an inclined portion facing the first flow guide and used to form the liquid storage area, and the second end face is parallel to the inclined portion.

[0007] In some embodiments, the angle between the second end face and the horizontal plane is α, where 10°≤α≤60°.

[0008] In some embodiments, the flow regulating plate further includes a first arcuate surface, which is located at the end of the drain channel away from the first spray pipe.

[0009] In some embodiments, the radius of the first arcuate surface is R, where 0.8 mm ≤ R ≤ 3 mm.

[0010] In some embodiments, the thickness of the flow regulating plate is W, 10mm≤W≤20mm; and / or, the minimum height of the flow regulating plate is H1, 20mm≤H1≤30mm; and / or, the maximum height of the flow regulating plate is H2, 25mm≤H2≤40mm.

[0011] In some embodiments, the sealing plate has a mounting portion on the side away from the first spray pipe, and the mounting portion extends in a direction away from the drain channel; the flow regulating plate includes a connecting portion and an extension portion, the connecting portion and the extension portion are connected in an L-shaped structure, the connecting portion is connected to the mounting portion, and the extension portion is the channel wall of the drain channel.

[0012] In some embodiments, the flow regulating plate is made of an alloy material.

[0013] Secondly, this utility model embodiment also provides a wire cutting machine, which includes the spray structure as described above.

[0014] This utility model discloses a spray structure. By setting the horizontal distance L between the first end face of the flow regulating plate away from the first spray pipe and the end face of the guide plate away from the first spray pipe, which is set to be greater than or equal to 1 mm and less than or equal to 5 mm, the flow distance of the cutting fluid on the guide plate after flowing out of the flow regulating plate is controlled, thereby controlling the residence time of the cutting fluid on the guide plate after flowing out of the flow regulating plate. This reduces the influence of the wind field on the fluid flow during this period, making the entire liquid curtain flowing out of the spray structure uniform in thickness and the fluid flow continuous, improving the cooling and lubrication effects of the cutting fluid, thereby improving the TTV of the workpiece to be cut.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the spray structure described in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure in the AA sectional view; Figure 3 This is a schematic diagram of the flow regulating plate described in the first embodiment of the present invention; Figure 4 This is a schematic diagram showing the dimensions of the flow regulating plate according to the first embodiment of this utility model; Figure 5 This is a schematic diagram of the flow regulating plate according to the second embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. First spray pipe; 11. Liquid inlet; 12. Liquid outlet; 13. First chamber; 14. Second chamber; 20. Sealing plate; 21. Mounting part; 22. Inclined part; 30. Deflector plate; 31. First deflector section; 32. Second deflector section; 40. Baffle plate; 41. Diversion hole; 50. Flow regulating plate; 51. First end face; 52. Second end face; 53. First arc-shaped surface; 54. Elongated hole; 55. Connecting part; 56. Extension part; 57. Third end face; 58. Second arc-shaped surface; 60. Liquid storage area; 61. Drainage channel; 70. Liquid inlet pipe; 80. Second spray pipe; 90. Mounting plate. Detailed Implementation

[0019] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0020] The following is in conjunction with the appendix Figures 1 to 5 This paper provides a detailed description of the spray structure and wire cutting machine provided in this application through specific embodiments and application scenarios. The spray structure is suitable for the production of various parts to be cut, such as photovoltaic silicon rods, semiconductor silicon rods, silicon carbide, sapphire, and magnetic materials. The spray structure has the advantages of uniform liquid output, uniform liquid curtain thickness, and continuous liquid flow, effectively improving the TTV (Total TV Value) of the parts to be cut. When the parts to be cut are silicon rods, the spray structure can effectively improve the TTV of silicon wafers, i.e., improve the quality of the silicon wafers.

[0021] Reference Figure 1 and Figure 2 As shown in the figure, this application embodiment provides a spray structure, which includes a first spray pipe 10, a sealing plate 20, a guide plate 30, and a flow regulating plate 50. The first spray pipe 10 is provided with an inlet 11 and an outlet 12. The sealing plate 20 is located above the guide plate 30. The sealing plate 20 and the guide plate 30 are respectively connected to the first spray pipe 10. A liquid storage area 60 is formed between the sealing plate 20, the guide plate 30, and the first spray pipe 10. The liquid storage area 60 is connected to the outlet 12. The flow regulating plate 50 is connected to the side of the sealing plate 20 away from the first spray pipe 10. A drainage channel 61 is formed between the ends of the flow regulating plate 50 and the sealing plate 20 away from the first spray pipe 10 and the end of the guide plate 30 away from the first spray pipe 10. The horizontal distance between the first end face 51 of the flow regulating plate 50 away from the first spray pipe 10 and the end face of the guide plate 30 away from the first spray pipe 10 is L, where 1mm≤L≤5mm.

[0022] In this embodiment, along the axial direction of the first spray pipe 10, the lengths of the sealing plate 20 and the guide plate 30 are matched with the length of the first spray pipe 10, so that all the cutting fluid flowing out of the outlet 12 flows into the storage area 60. The axial direction of the first spray pipe 10 is referenced to... Figure 1 As indicated by the middle arrow X.

[0023] Reference Figure 1 and Figure 2 As shown, the first spray pipe 10 is provided with a liquid inlet 11, and the liquid inlet pipe 70 is connected to the first spray pipe 10. The cutting fluid enters the first spray pipe 10 through the liquid inlet pipe 70 and the liquid inlet 11. It can be understood that the number of liquid inlets 11 and the number of liquid inlet pipes 70 can be set according to the usage requirements. There can be 2, 3, 4, 5, etc., liquid inlets 11 and liquid inlet pipes 70. The number of liquid outlets 12 can also be set according to the usage requirements. Multiple liquid outlets 12 can have the same diameter or different diameters. Multiple liquid outlets 12 can be evenly distributed along the axial direction of the first spray pipe 10, or they can be unevenly distributed. Alternatively, multiple liquid outlets 12 can be set along the axial direction of the first spray pipe 10, with a sparse middle and dense ends.

[0024] The spray structure is suitable for spraying cutting fluids such as slurry. The slurry is used to spray evenly onto the cutting line during the cutting process. The slurry cools the cutting line, lubricates and removes powder and other impurities generated during the cutting process, as well as improves the cutting force and the quality of the blade marks on the surface of the workpiece.

[0025] When the spray structure is in use, cutting fluids such as mortar will enter the first spray pipe 10 through the inlet 11, and then enter the storage area 60 through the outlet 12. After that, it will flow out through the drain channel 61 and the flow regulating plate 50. After the cutting fluids such as mortar flow out of the drain channel 61, they need to flow on the guide plate 30 for a certain distance before flowing out of the guide plate 30.

[0026] The inventors discovered that because the spray structure uses a direct spray method, the cutting fluid needs to flow a certain distance on the guide plate 30 after flowing out of the drain channel 61. However, there is no shielding device above a section of the guide plate 30. When the cutting line is running at high speed, the cutting fluid impacts the silicon rod and is then returned, interrupting the flow of the fluid on the guide plate 30. This results in uneven thickness of the liquid curtain in the area between the first end face 51 of the flow regulating plate 50 and the guide plate 30, ultimately leading to poor TTV quality of the workpiece to be cut.

[0027] The spray structure of this application embodiment sets the horizontal distance L between the first end face 51 of the flow regulating plate 50 away from the first spray pipe 10 and the end face of the guide plate 30 away from the first spray pipe 10, which is set within the above range. In other words, by controlling the flow distance of the cutting fluid on the guide plate 30 after it flows out of the flow regulating plate 50 within the above range, the residence time of the cutting fluid on the guide plate 30 after it flows out of the flow regulating plate 50 can be controlled, reducing the influence of the wind field on the fluid flow during this period. This makes the entire liquid curtain flowing out of the spray structure uniform in thickness and the fluid flow uninterrupted, improving the cooling and lubrication effects of the cutting fluid, thereby improving the TTV of the workpiece to be cut.

[0028] It is understandable that the horizontal distance L between the first end face 51 of the flow regulating plate 50 away from the first spray pipe 10 and the end face of the guide plate 30 away from the first spray pipe 10 is set according to the usage requirements. For example, L is one of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, or any value between the above values.

[0029] In some embodiments, the guide plate 30 includes a first guide portion 31 facing the sealing plate 20 and forming a drainage channel 61 with the sealing plate 20 and the flow regulating plate 50; the flow regulating plate 50 also includes a second end face 52 facing the first guide portion 31, the second end face 52 being an inclined surface and forming the channel wall of the drainage channel 61, and the distance between the end of the second end face 52 near the first spray pipe 10 and the first guide portion 31 being greater than the distance between the other end of the second end face 52 away from the first spray pipe 10 and the first guide portion 31. Thus, when the spray structure is in use, the cutting fluid flows from the side with the larger opening to the side with the smaller opening as it passes through the flow regulating plate 50, naturally stabilizing and increasing the pressure, and the flow regulating plate 50 can adjust the uniformity of the fluid flow.

[0030] Reference Figure 2 As shown, the sealing plate 20 includes an inclined portion 22 facing the first guide portion 31 and used to form a liquid storage area 60. The second end face 52 is parallel to the inclined portion 22 to further increase the smoothness of the liquid flow, reduce the probability of air being entrained in the cutting fluid, reduce air bubbles in the cutting fluid, and improve the cooling and lubrication effect of the cutting fluid by reducing air bubbles.

[0031] Reference Figure 4 As shown, the angle between the second end face 52 and the horizontal plane is α, where 10° ≤ α ≤ 60°. When the angle α between the second end face 52 and the horizontal plane is within the above range, it can better increase the stability of the fluid flow, reduce the probability of air being entrained in the cutting fluid, and achieve the purpose of improving the cooling and lubrication effect of the cutting fluid. It is understood that the specific value of the angle α is not limited in the embodiments of this application. For example, the angle α is one of 10°, 20°, 30°, 40°, 50°, and 60°, or any angle between the above angles.

[0032] Reference Figure 3 As shown, the flow regulating plate 50 also includes a first arc-shaped surface 53, which is located at the end of the drain channel 61 away from the first spray pipe 10. The first arc-shaped surface 53 connects the first end face 51 and the second end face 52, and protrudes in a direction away from the flow regulating plate 50.

[0033] In the embodiments of this application, reference is made to Figure 3As shown, the first arc-shaped surface 53 protrudes away from the flow regulating plate 50. The first arc-shaped surface 53 is a flow stabilizing and guiding structure on the flow regulating plate 50, which can prevent the cutting fluid from hooking when it flows through the flow regulating plate 50, thereby making the entire liquid curtain flowing out of the spray structure uniform in thickness.

[0034] It is understandable that the radius of the first arc-shaped surface 53 needs to have a certain range to match the angle of the second end face 52 and effectively avoid liquid hooking. In some embodiments, refer to Figure 4 As shown, the radius of the first arc surface 53 is R, 0.8mm≤R≤3mm. For example, R is one of 0.8mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, or any value between the above values.

[0035] In some implementations, refer to Figure 4 As shown, the flow regulating plate 50 is a long strip-shaped structure with a thickness W of 10mm ≤ W ≤ 20mm. In this embodiment, when the thickness W of the flow regulating plate 50 is within the above range, the thickness of the flow regulating plate 50 is relatively large. A larger thickness flow regulating plate 50 is less prone to deformation, avoiding leakage problems caused by poor sealing (specifically, the connection between the flow regulating plate 50 and the sealing plate 20) due to deformation of the flow regulating plate 50. In addition, a larger thickness flow regulating plate 50 can further reduce the influence of the wind field on the liquid flow and improve the uniformity of the liquid curtain thickness. The larger thickness flow regulating plate 50 simultaneously solves the problems of deformation and leakage caused by deformation, as well as the problem of the large flow distance of the cutting fluid after flowing out of the flow regulating plate 50 on the guide plate 30, which leads to the wind field affecting the uniformity of the cutting fluid output.

[0036] In current technology, the thickness of the flow regulating plate 50 in the spray structure is generally 2mm. When the cutting line rotates at high speed, the cutting fluid will impact the workpiece to be cut and then return and break on the flow regulating plate 50. After long-term use, the flow regulating plate 50 is very easy to deform, causing poor sealing and leakage. This results in uneven thickness of the entire liquid curtain, affecting the TTV of the workpiece to be cut.

[0037] Reference Figure 3 As shown, the flow regulating plate 50 has a third end face 57 facing the sealing plate 20. When the flow regulating plate 50 is connected to the sealing plate 20, the third end face 57 contacts the mounting portion 21 of the sealing plate 20. Due to the provision of the second end face 52, the flow regulating plate 50 has a minimum height and a maximum height, as shown in the figure. Figure 4As shown, the minimum height is H1, which is the height at the third end face 57, and 20mm ≤ H1 ≤ 30mm. It can be understood that the minimum height H1 of the flow regulating plate 50 can be set according to usage requirements. For example, H1 can be one of 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, or 30mm, or any value between these values.

[0038] Reference Figure 4 As shown, the maximum height of the flow regulating plate 50 is H2, which is the height at the first end face 51, and 25mm ≤ H2 ≤ 40mm. It can be understood that the maximum height H2 of the flow regulating plate 50 can be set according to usage requirements. For example, H2 can be one of 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, or 10mm, or any value between these values.

[0039] The distance between the lower end of the flow regulating plate 50 and the guide plate 30 can be adjusted within the aforementioned height range according to actual needs. In one optional configuration, the flow regulating plate 50 and the guide plate 30 are detachable and adaptable to vertical movement. For example, the sealing plate 20 has a mounting part 21 on the side away from the first spray pipe 10, and the mounting part 21 extends away from the first guide part 31. The flow regulating plate 50 has a waist-shaped hole or an elongated hole 54. A bolt or other locking component passes through the waist-shaped hole or the elongated hole 54 and is threadedly connected to the threaded hole on the mounting part 21. By pushing and pulling the flow regulating plate 50 up and down, the position of the bolt relative to the waist-shaped hole or the elongated hole 54 can be changed, thereby changing the distance between the flow regulating plate 50 and the guide plate 30. Of course, the flow regulating plate 50 can also be implemented using a form such as a lead screw and nut. This application does not limit its specific configuration.

[0040] The spray structure of this application embodiment, by setting a flow regulating plate 50, can adjust the outlet size of the drain channel 61 according to actual operation requirements, thereby making the flow regulation more precise.

[0041] In other embodiments, reference is made to... Figure 5 As shown, the flow regulating plate 50 includes a connecting part 55 and an extension part 56. The connecting part 55 and the extension part 56 are connected in an L-shaped structure. The connecting part 55 is connected to the mounting part 21, and the extension part 56 is the channel wall of the drainage channel 61.

[0042] In this embodiment, the extension 56 can further reduce the influence of the wind field on the liquid flow, making the entire liquid curtain flowing out of the spray structure uniform in thickness and the liquid flow continuous, improving the cooling and lubrication effects of the cutting fluid, thereby improving the TTV of the workpiece to be cut.

[0043] When the connecting part 55 and the extension part 56 are connected in an L-shaped structure, the flow regulating plate 50 is a long and thin plate structure. The L-shaped structure makes the flow regulating plate 50 have higher strength. In this way, the deformation of the flow regulating plate 50 and the leakage problem caused by poor sealing due to deformation can also be avoided.

[0044] The extension 56 is arranged parallel to the inclined part 22, which allows the extension 56 to naturally stabilize and increase pressure. The flow regulating plate 50 can adjust the uniformity of the liquid flow, increase the stability of the liquid flow, reduce the probability of air being entrained in the cutting fluid, reduce air bubbles in the cutting fluid, and improve the cooling and lubrication effect of the cutting fluid by reducing air bubbles.

[0045] The end of the extension 56 is also provided with a second arc-shaped surface 58. The second arc-shaped surface 58 is located at the end of the drain channel 61 away from the first spray pipe 10. The second arc-shaped surface 58 protrudes in a direction away from the flow regulating plate 50. The second arc-shaped surface 58 can prevent the cutting fluid from hooking when it flows through the flow regulating plate 50, thereby making the entire liquid curtain flowing out of the spray structure uniform in thickness.

[0046] In some embodiments, the flow regulating plate 50 is made of an alloy material. Alloy materials, such as titanium and titanium alloys, aluminum alloys, and nickel-based alloys, will not corrode or rust even after prolonged contact with cutting fluids like slurry, thus avoiding rust problems and preventing rust from being washed down by the cutting fluid and causing skipped lines or other issues. Aluminum alloys also have the advantage of being lightweight.

[0047] In some embodiments, reference is made to Figure 1 and Figure 2 As shown, the guide plate 30 also includes a second guide section 32. One end of the second guide section 32 is connected to the first spray pipe 10, and the other end of the second guide section 32 is connected to the first guide section 31. The first guide section 31 and the second guide section 32 form an L-shape, and the connection between the first guide section 31 and the second guide section 32 is smoothly transitioned to ensure the uniformity of the liquid flow.

[0048] To avoid changes in cutting fluid flow rate, interruption of cutting fluid flow, and uneven thickness of cutting fluid, the first guide section 31 is tilted downwards, so that the cutting fluid flows out smoothly and has a certain initial velocity to shoot towards the cutting line in a parabolic trajectory, ensuring uniform flow rate and thickness, and guaranteeing cooling and flushing effects.

[0049] In some implementations, refer to Figure 2As shown, the spray structure also includes a baffle 40, which is disposed inside the first spray pipe 10. The baffle 40 is arranged along the axial direction of the first spray pipe 10 and divides the first spray pipe 10 into a first chamber 13 and a second chamber 14. The first chamber 13 is connected to the liquid inlet 11, and the second chamber 14 is connected to the liquid outlet 12. The baffle 40 is provided with a diversion hole 41, which connects the first chamber 13 and the second chamber 14.

[0050] In operation, the cutting fluid enters the first chamber 13 of the first spray pipe 10 through the inlet 11. The fluid is blocked by the baffle 40 and flows axially to both sides of the first spray pipe 10, thus achieving a diversion effect. This reduces the pressure and velocity of the cutting fluid, improving the uniformity of the output. The cutting fluid in the first chamber 13 flows into the second chamber 14 through the diversion hole 41, which slows down the flow of the cutting fluid within the first spray pipe 10. Even under fluctuating supply pressure, the cutting fluid can still be evenly distributed within the first spray pipe 10, thus flowing out evenly from the outlet 12.

[0051] There are multiple diversion holes 41, which are spaced apart or evenly distributed. The diversion holes 41 can be aligned vertically with the liquid inlet 11 or staggered vertically; the diversion holes 41 can be aligned vertically with the liquid outlet 12 or staggered vertically.

[0052] In some implementations, refer to Figure 1 As shown, the spray structure also includes a mounting plate 90, which is connected to the first spray pipe 10, the sealing plate 20, and the guide plate 30. The mounting plate 90 is used to fix the spray structure, for example, to a cutting machine. A second spray pipe 80 is also provided above the spray structure, and is also connected to the mounting plate 90. The second spray pipe 80 is used to lift and rinse the workpiece to be cut. It is understood that the mounting plate 90 and the second spray pipe 80 can both use conventional structures in the current technology, and this application embodiment does not limit this.

[0053] In the spray structure of this application embodiment, the horizontal distance L between the first end face of the flow regulating plate away from the first spray pipe and the end face of the guide plate away from the first spray pipe is set to be greater than or equal to 1 mm and less than or equal to 5 mm. This controls the residence time of the cutting fluid on the guide plate 30 after it flows out through the flow regulating plate 50, reduces the influence of the wind field on the fluid flow during this period, and makes the entire liquid curtain flowing out of the spray structure uniform in thickness, improving the cooling and lubrication effects of the cutting fluid, thereby improving the TTV of the workpiece to be cut.

[0054] This application also provides a wire cutting machine, which includes the spray structure described above.

[0055] In use, the wire EDM machine of this embodiment cuts the workpiece with a cutting wire. A spray structure sprays cutting fluid onto the cutting wire, which cools the wire, lubricates it, removes impurities such as powder generated during the cutting process, and enhances the cutting force and the surface finish of the workpiece. Furthermore, because the liquid curtain flowing from the spray structure is uniform in thickness and the flow is continuous, the cooling and lubrication effects of the cutting fluid are improved, resulting in better quality cutting of the workpiece.

[0056] In the embodiments of this application, the spray structure and the wire cutting machine can be referenced to each other and have the same or similar beneficial effects as any of the aforementioned spray structures. To avoid repetition, they will not be described again here.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For embodiments of devices, electronic devices, computer-readable storage media, and computer program products containing instructions, the descriptions are relatively simple because they are basically similar to the method embodiments; relevant parts can be referred to the descriptions of the method embodiments.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A spray structure, characterized in that, include: The first spray pipe (10) is provided with an inlet (11) and an outlet (12). A sealing plate (20) and a guide plate (30) are provided. The sealing plate (20) is located above the guide plate (30). The sealing plate (20) and the guide plate (30) are respectively connected to the first spray pipe (10). A liquid storage area (60) is formed between the sealing plate (20), the guide plate (30) and the first spray pipe (10). The liquid storage area (60) is connected to the liquid outlet (12). A flow regulating plate (50) is connected to the side of the sealing plate (20) away from the first spray pipe (10). A drainage channel (61) is formed between the flow regulating plate (50), the end of the sealing plate (20) away from the first spray pipe (10), and the end of the guide plate (30) away from the first spray pipe (10). The horizontal distance between the first end face (51) of the flow regulating plate (50) away from the first spray pipe (10) and the end face of the guide plate (30) away from the first spray pipe (10) is L, 1mm≤L≤5mm.

2. The spray structure according to claim 1, characterized in that, The guide plate (30) includes a first guide portion (31) facing the sealing plate (20) and forming the drain channel (61) with the sealing plate (20) and the flow regulating plate (50). The flow regulating plate (50) further includes a second end face (52), which faces the first guide part (31) and is the channel wall of the drainage channel (61). The second end face (52) is an inclined surface. The distance between the end of the second end face (52) near the first spray pipe (10) and the first guide part (31) is greater than the distance between the other end of the second end face (52) away from the first spray pipe (10) and the first guide part (31).

3. The spray structure according to claim 2, characterized in that, The sealing plate (20) includes an inclined portion (22) facing the first flow guide portion (31) and used to form the liquid storage area (60), and the second end face (52) is parallel to the inclined portion (22).

4. The spray structure according to claim 2, characterized in that, The angle between the second end face (52) and the horizontal plane is α, 10°≤α≤60°.

5. The spray structure according to claim 1, characterized in that, The flow regulating plate (50) also includes a first arc-shaped surface (53), which is located at the end of the drain channel (61) away from the first spray pipe (10).

6. The spray structure according to claim 5, characterized in that, The radius of the first arc-shaped surface (53) is R, 0.8mm≤R≤3mm.

7. The spray structure according to any one of claims 1-6, characterized in that, The thickness of the flow regulating plate (50) is W, 10mm ≤ W ≤ 20mm; and / or, The minimum height of the flow regulating plate (50) is H1, 20mm ≤ H1 ≤ 30mm; and / or, The maximum height of the flow regulating plate (50) is H2, 25mm≤H2≤40mm.

8. The spray structure according to claim 1, characterized in that, The sealing plate (20) has an installation part (21) on the side away from the first spray pipe (10), and the installation part (21) extends in a direction away from the drain channel (61); The flow regulating plate (50) includes a connecting part (55) and an extension part (56). The connecting part (55) and the extension part (56) are connected in an L-shaped structure. The connecting part (55) is connected to the mounting part (21). The extension part (56) is the channel wall of the drain channel (61).

9. The spray structure according to claim 1, characterized in that, The flow regulating plate (50) is made of alloy material.

10. A wire cutting machine, characterized in that, The wire cutting machine includes a spray structure as described in any one of claims 1 to 9.

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