Spraying equipment and its working method

Abstract

The present application relates to a kind of injection equipment and its working method, including spray head device and liquid supply device;Spray head device includes support and the nozzle of a series of settings on support, a series of nozzle is arranged along the first direction, a series of nozzle is connected with liquid supply device;Liquid supply device includes first liquid supply mechanism and second liquid supply mechanism;First liquid supply mechanism is used to provide first spray liquid to nozzle;Second liquid supply mechanism is used to provide second spray liquid to nozzle.Nozzle is arranged in spray head device, so as to form the spray mode of line unit, by line face, so that spray head device can continuously spray to workpiece, improve work efficiency, and, nozzle on spray head device is arranged in a straight line, so that the structure of spray head device is more compact, and the required installation space is small, it is convenient to directly fix spray head device on the production line of workpiece, without needing to reform existing production line or set other support structure, expand the application range of injection equipment.

Description

Technical Field

[0001] This invention belongs to the field of spraying device technology, and in particular relates to a spraying device and its working method. Background Technology

[0002] Currently, spraying is a common processing technology in the manufacturing industry. Therefore, spraying equipment is widely used in various fields. Most existing spraying equipment includes a moving mechanism and a nozzle, with the moving mechanism driving the nozzle to spray the workpiece. However, this method can only achieve point-to-line and line-to-surface spraying, resulting in low spraying efficiency, long single-process time, and inability to meet the needs of large-scale production and continuous online production. Summary of the Invention

[0003] This invention provides a spraying device and its operating method to improve spraying efficiency.

[0004] This invention provides a spraying device, including a nozzle assembly and a liquid supply device;

[0005] The nozzle device includes a support member and a row of nozzles disposed on the support member, the row of nozzles being disposed along a first direction, and the row of nozzles being connected to the liquid supply device;

[0006] The liquid supply device includes a first liquid supply mechanism and a second liquid supply mechanism; the first liquid supply mechanism is connected to a row of nozzles and is used to supply a first liquid to the nozzles; the second liquid supply mechanism is connected to a row of nozzles and is used to supply a second liquid to the nozzles.

[0007] Optionally, the liquid supply device further includes a second liquid supply mechanism; the second liquid supply mechanism is connected to a row of nozzles and is used to supply a second liquid to the nozzles.

[0008] Optionally, the nozzle device further includes a nozzle conduit, which is connected to the first liquid supply mechanism and the second liquid supply mechanism respectively;

[0009] Each nozzle includes a nozzle body, a nozzle conduit, and a nozzle electronic valve; one end of the nozzle conduit is connected to the nozzle head conduit, and the other end is connected to the nozzle body; the nozzle electronic valve is disposed on the nozzle conduit and is used to control the flow rate of the nozzle conduit.

[0010] Optionally, the nozzle assembly is provided in multiple ways, and all nozzles in the multiple nozzle assemblies are arranged in a straight line.

[0011] Optionally, the nozzle device is provided in multiple ways, the projections of the multiple nozzle devices along the second direction at least partially overlap, and all nozzles on the multiple nozzle devices are staggered, with the first direction perpendicular to the second direction.

[0012] Optionally, the nozzle device is provided in multiple ways, the projections of the multiple nozzle devices along the first direction do not overlap, and the projections of the multiple nozzle devices along the second direction do not overlap, wherein the first direction is perpendicular to the second direction.

[0013] Optionally, the first liquid supply mechanism includes a first liquid storage tank, a fluid pressurization and stabilization system, a first solenoid valve, and a first connecting pipe;

[0014] The first liquid storage tank, the fluid pressurization and stabilization system, the first solenoid valve, and the nozzle pipe are connected in sequence through the first connecting pipe;

[0015] The fluid pressurization and stabilization system is used to deliver the first spray liquid in the first storage tank to the nozzle and to adjust the pressure of delivering the first spray liquid.

[0016] Optionally, the fluid pressurization and stabilization system includes a first fluid pump, a first filter, and a pressure sensor; the first fluid pump is connected between the first liquid storage tank and the first solenoid valve, the pressure sensor is connected between the first fluid pump and the first solenoid valve, and the first filter is connected between the first liquid storage tank and the first solenoid valve.

[0017] Optionally, the first liquid supply mechanism further includes a second solenoid valve and a second connecting pipe, wherein the first liquid storage tank, the second solenoid valve and the nozzle pipe are connected in sequence through the second connecting pipe.

[0018] Optionally, the second liquid supply mechanism includes a second liquid storage tank, a second fluid pump, and a third connecting pipe; the second liquid storage tank, the second fluid pump, and the nozzle pipe are connected in sequence through the third connecting pipe;

[0019] The second fluid pump is used to deliver the second spray liquid in the second reservoir to the nozzle.

[0020] The present invention also provides a method for operating a spraying device, comprising the following steps:

[0021] Obtain the area to be sprayed on the workpiece;

[0022] The area to be sprayed is analyzed and processed to obtain spray data;

[0023] The real-time distance between the workpiece and the nozzle device, and the real-time speed of the workpiece relative to the nozzle device are obtained.

[0024] The system controls the first liquid supply mechanism to supply the first liquid to the nozzle, and / or controls the second liquid supply mechanism to supply the second liquid to the nozzle; based on the spray data, the real-time distance, and the real-time speed, the system controls the nozzle device to spray the workpiece.

[0025] In the spraying device and its working method provided in the embodiments of the present invention, a row of nozzles is set in the spray head device to form a spraying method with lines as units and lines forming surfaces. This design enables the spray head device to continuously spray the workpiece, improving work efficiency. Furthermore, the nozzles on the spray head device are arranged in a straight line, making the structure of the spray head device more compact and requiring less installation space. This makes it easy to directly fix the spray head device on the workpiece production line without modifying the existing production line or setting up other support structures, thus expanding the applicability of the spraying device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a spraying device provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the installation structure of a plurality of nozzle devices provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the installation structure of a plurality of nozzle devices provided in another embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the installation structure of a plurality of nozzle devices provided in another embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the installation structure of the nozzle device provided in another embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the area to be sprayed on the workpiece according to an embodiment of the present invention.

[0032] Figure 7 Yes Figure 6 A schematic diagram of the direction unit area for spraying in the area to be sprayed;

[0033] Figure 8 This is a flowchart of the working method of the spraying device provided in an embodiment of the present invention.

[0034] The reference numerals in the accompanying drawings are as follows:

[0035] 1. Nozzle assembly; 11. Support component; 12. Nozzle; 121. Nozzle body; 122. Nozzle pipe; 123. Nozzle electronic valve; 13. Nozzle pipe; 14. Nozzle cover; 2. First liquid supply mechanism; 21. First liquid storage tank; 22. First fluid pump; 23. First filter; 24. Pressure sensor; 25. First solenoid valve; 26. First connecting pipe; 27. Second solenoid valve; 28. Second connecting pipe; 29. ​​Back pressure device; 210. Fourth connecting pipe; 211. First check valve; 3. Second liquid supply mechanism; 31. Second liquid storage tank; 32. Second fluid pump; 33. Third connecting pipe; 34. Second filter; 35. Second check valve; 4. First spray; 5. Second spray; 6. Area to be sprayed; 7. Square unit area. Detailed Implementation

[0036] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] like Figure 1As shown, the spraying device provided in this embodiment of the invention includes a nozzle device 1 and a liquid supply device. The nozzle device 1 includes a support member 11 and a row of nozzles 12 disposed on the support member 11. The row of nozzles 12 is disposed along a first direction and is connected to the liquid supply device. The liquid supply device includes a first liquid supply mechanism 2 and a second liquid supply mechanism 3. The first liquid supply mechanism 2 is connected to the row of nozzles 12 and is used to provide a first spray liquid 4 to the nozzles 12. The second liquid supply mechanism 3 is connected to the row of nozzles 12 and is used to provide a second spray liquid 5 to the nozzles 12.

[0041] As an example, the first liquid supply mechanism 2 is a component in the spraying equipment that serves to supply liquid. The first liquid supply mechanism 2 stores the first spray liquid 4. When it is necessary to spray the first spray liquid 4 onto the workpiece, the first liquid supply mechanism 2 delivers the stored first spray liquid 4 to the nozzle 12 so that the first spray liquid 4 is sprayed onto the workpiece through the nozzle 12. When it is not necessary to spray the first spray liquid 4, the first liquid supply mechanism 2 stops supplying the first spray liquid 4 to the nozzle 12.

[0042] As an example, the second liquid supply mechanism 3 is a component in the spraying equipment that serves to supply liquid. The second liquid supply mechanism 3 stores the second spray liquid 5. When the second spray liquid 5 needs to be sprayed onto the workpiece, the second liquid supply mechanism 3 delivers its stored second spray liquid 5 to the nozzle 12, so that the second spray liquid 5 is sprayed onto the workpiece through the nozzle 12. When spraying the second spray liquid 5 is not needed, the second liquid supply mechanism 3 stops supplying the second spray liquid 5 to the nozzle 12. This design, with the nozzle 12 connected to two liquid supply mechanisms, can meet more spraying needs.

[0043] As an example, the nozzle device 1 is a component in a spraying device that sprays liquid. The nozzle device 1 includes a support member 11 and multiple nozzles 12. The multiple nozzles 12 are spaced apart on the support member 11 along a first direction, forming a row of nozzles 12. That is, during spraying, the row of nozzles 12 forms a spray pattern on the workpiece, with lines as units and lines forming surfaces. This allows the nozzle device 1 and the workpiece to remain in relative motion during the spraying process, enabling the nozzle device 1 to continuously spray the workpiece and improving spraying efficiency. The nozzle device 1 can be fixed while the workpiece is moved; for example, on a production line, the nozzle device 1 can be fixed to the production line. When the workpiece is conveyed by the production line past the nozzle device 1, the nozzle device 1 sprays the workpiece without stopping the conveying of the workpiece, thus achieving spraying the workpiece while it is being conveyed. Alternatively, the workpiece can be fixed while the nozzle device 1 is moved; for example, an operator can hold the nozzle device 1 and spray the workpiece.

[0044] like Figure 2 , Figure 6 and Figure 7As shown, during spraying, the area 6 to be sprayed on the workpiece is decomposed into multiple square unit areas 7 arranged in an array. The square unit areas 7 distributed along the first direction form a column of square unit areas 7, and the square unit areas 7 distributed along the second direction form a row of square unit areas 7. The first direction is perpendicular to the second direction. The workpiece moves relative to the nozzle device 1 along the second direction. When the workpiece moves to the point where its first column of square unit areas 7 is opposite to a row of nozzles 12, each nozzle 12 in the row of nozzles 12 corresponds to each square unit area 7 in the first column of square unit areas 7. Each nozzle 12 corresponds to a square unit area 7, enabling spraying of the first column of square unit areas 7. When the workpiece moves to its second column of square unit areas 7 and is opposite to a column of nozzles 12, each nozzle 12 corresponds to a square unit area 7, enabling spraying of the second column of square unit areas 7. This process continues until the workpiece moves to its last column of square unit areas 7 and is opposite to a column of nozzles 12, at which point each nozzle 12 corresponds to a square unit area 7, enabling spraying of the last column of square unit areas 7. This completes the spraying of the workpiece's spray area 6.

[0045] In the spraying device provided in this embodiment of the invention, a row of nozzles 12 is provided in the nozzle device 1, thereby forming a spraying method with lines as units and lines forming surfaces. This design enables the nozzle device 1 to continuously spray the workpiece, improving work efficiency. Furthermore, the nozzles 12 on the nozzle device 1 are arranged in a straight line, making the structure of the nozzle device 1 more compact and requiring less installation space. This facilitates the direct fixing of the nozzle device 1 to the workpiece production line without the need to modify the existing production line or set up other support structures, thus expanding the applicability of the spraying device.

[0046] As an example, the second spray liquid 5 is the same as the first spray liquid 4. With this design, if the first spray liquid 4 in the first liquid supply mechanism 2 is insufficient, the second liquid supply mechanism 3 can deliver the second spray liquid 5 to the nozzle 12 in a timely manner, ensuring the normal operation of the spraying. It also provides time for the first liquid supply mechanism 2 to replenish the first spray liquid 4, thus avoiding affecting the spraying efficiency.

[0047] As another example, the second spray liquid 5 and the first spray liquid 4 are two different spray liquids, and the second spray liquid 5 is a diluent of the first spray liquid 4; this design allows the first spray liquid 4 to be diluted to different degrees according to different needs.

[0048] As another example, the second spray liquid 5 and the first spray liquid 4 are two different spray liquids, and the second spray liquid 5 is a self-cleaning liquid; with this design, before or after the nozzle 12 sprays the first spray liquid 4, the second liquid supply mechanism 3 delivers the self-cleaning liquid to the nozzle 12, so that the self-cleaning liquid can clean the nozzle 12 and ensure the cleanliness of the nozzle 12.

[0049] In one embodiment, such as Figure 1As shown, the nozzle device 1 also includes a nozzle pipe 13, which is connected to the first liquid supply mechanism 2 and the second liquid supply mechanism 3 respectively; each nozzle 12 includes a nozzle body 121, a nozzle pipe 122 and a nozzle electronic valve 123; one end of the nozzle pipe 122 is connected to the nozzle pipe 13 and the other end is connected to the nozzle body 121; the nozzle electronic valve 123 is installed on the nozzle pipe 122 and is used to control the flow rate of the nozzle pipe 122.

[0050] In this example, the nozzle pipe 13 is connected to the first liquid supply mechanism 2 and the second liquid supply mechanism 3, respectively. The nozzle pipe 13, the nozzle pipe 122, and the nozzle body 121 are connected in sequence. Each nozzle pipe 122 is equipped with a nozzle electronic valve 123 to control the flow rate of the nozzle pipe 122. That is, the nozzle electronic valve 123 controls the opening and closing of the corresponding nozzle body 121 and the flow rate of the ejected fluid. In other words, when each row of square unit areas 7 passes through a row of nozzles 12, the nozzle body 121 corresponding to the square unit area 7 that needs to be sprayed in that row of square unit areas 7 is in the open state, so that the nozzle body 121 can spray; the nozzle body 121 corresponding to the square unit area 7 that does not need to be sprayed in that row of square unit areas 7 is in the closed state, so that the nozzle body 121 cannot spray. This design is conducive to precise control of each nozzle 12 to meet the different spraying requirements of the workpiece.

[0051] As a preferred embodiment, such as Figure 2 As shown, multiple nozzle devices 1 are provided, and all nozzles 12 in the multiple nozzle devices 1 are arranged on the same straight line. That is, the projections of multiple nozzle devices 1 overlap along the first direction. This design, by increasing the number of nozzle devices 1, adjusts the overall length of the nozzle device 1 in the first direction, so that the overall length of the nozzle device 1 in the first direction matches the length of the workpiece in the first direction. This allows the nozzle device 1 and the workpiece to complete the spraying by only moving relative to each other in one direction, avoiding relative movement between the nozzle device 1 and the workpiece along the first direction and improving the spraying efficiency.

[0052] Wherein, the distance between two adjacent nozzles 12 in the first direction is D, the effective distance between two adjacent nozzles 12 spraying onto the workpiece is d, and the distance between two adjacent square unit areas 7 in each column of square unit areas 7 is equal to the effective distance between two adjacent nozzles 12 spraying onto the workpiece. As an example, such as Figure 2 As shown, when the direction of movement of the workpiece relative to the nozzle device 1 is perpendicular to the first direction, d = D. As another example, such as... Figure 5As shown, the angle between the moving direction of the workpiece relative to the nozzle device 1 and the first direction is A, and d = DSinA. That is, by adjusting the angle between the moving direction of the workpiece relative to the nozzle device 1 and the first direction, the effective distance between adjacent nozzles 12 spraying onto the workpiece can be adjusted, making the spraying equipment suitable for spraying of different precisions and expanding its applicability.

[0053] As another preferred embodiment, such as Figure 3 As shown, multiple nozzle devices 1 are provided, and the projections of the multiple nozzle devices 1 along the second direction at least partially overlap. Furthermore, all nozzles 12 on the multiple nozzle devices 1 are staggered, with the first direction perpendicular to the second direction. That is, the multiple nozzle devices 1 are spaced apart along the second direction, meaning the nozzles 12 in the multiple nozzle devices 1 are located on different straight lines; and all nozzles 12 on the multiple nozzle devices 1 are staggered. This design allows for adjustment of the spacing between the nozzles 12 along the first direction, enabling the spraying equipment to meet more precise spraying requirements, improve spraying accuracy, and expand the applicability of the spraying equipment.

[0054] As an example, such as Figure 3 As shown, there are two nozzle devices 1, namely the first nozzle device 1 and the second nozzle device 1. The workpiece moves relative to the nozzle device 1 along the second direction. Each column of square unit areas 7 on the workpiece passes through the first nozzle device 1 and the second nozzle device 1 in sequence. The first nozzle device 1 sprays the single row of square unit areas 7 in each column of square unit areas 7, and the second nozzle device 1 sprays the double row of square unit areas 7 in each column of square unit areas 7, thereby completing the spraying of each column of square unit areas 7.

[0055] As another preferred embodiment, such as Figure 4 As shown, multiple nozzle devices 1 are provided. The projections of the multiple nozzle devices 1 along the first direction do not overlap, and the projections of the multiple nozzle devices 1 along the second direction do not overlap either. The first direction and the second direction are perpendicular. That is to say, the multiple nozzle devices 1 are distributed along the first direction, and the multiple nozzle devices 1 are spaced apart along the second direction, meaning that the nozzles 12 in the multiple nozzle devices 1 are located on different straight lines. This design ensures that the overall length of the nozzle device 1 in the first direction is compatible with the length of the workpiece in the first direction, and also solves the problem of insufficient installation space along the same straight line in the first direction, which prevents the installation of multiple nozzle devices 1. The overall installation of the nozzle device 1 is more flexible and versatile, expanding the application range of the spraying equipment.

[0056] As an example, such as Figure 4As shown, there are two nozzle devices 1, namely the first nozzle device 1 and the second nozzle device 1. The workpiece moves relative to the nozzle device 1 along the second direction, and each column of square unit areas 7 on the workpiece passes through the first nozzle device 1 and the second nozzle device 1 in sequence. Each column of square unit areas 7 is divided into a first part of square unit areas 7 and a second part of square unit areas 7. When passing through the first nozzle device 1, the first part of square unit areas 7 is positioned opposite to the first nozzle device 1, and the nozzle 12 in the first nozzle device 1 sprays the first part of square unit areas 7. When passing through the second nozzle device 1, the second part of square unit areas 7 is positioned opposite to the second nozzle device 1, and the nozzle 12 in the second nozzle device 1 sprays the second part of square unit areas 7, thereby completing the spraying of each column of square unit areas 7.

[0057] In this embodiment, as Figure 1 As shown, the nozzle device 1 also includes a nozzle cover 14, which is detachably mounted on the support member 11 to cover the nozzle 12. That is, the support member 11 and the nozzle cover 14 are detachably connected. When the nozzle device 1 sprays the workpiece, the support member 11 and the nozzle cover 14 are separated, so that the nozzle 12 can spray the first liquid 4 or the second liquid 5 onto the workpiece. When the nozzle device 1 performs self-cleaning, the nozzle cover 14 is installed on the support member 11, so that a sealed space is formed between the support member 11 and the nozzle cover 14. The nozzle 12 is located in the sealed space, so that the self-cleaning liquid sprayed by the nozzle 12 accumulates in the sealed space, thereby enabling the self-cleaning liquid in the sealed space to be recovered and reused.

[0058] In one embodiment, such as Figure 1 As shown, the first liquid supply mechanism 2 includes a first liquid storage tank 21, a fluid pressurization and stabilization system, a first solenoid valve 25, and a first connecting pipe 26; the first liquid storage tank 21, the fluid pressurization and stabilization system, the first solenoid valve 25, and the nozzle pipe 13 are connected in sequence through the first connecting pipe 26; the fluid pressurization and stabilization system is used to deliver the first spray liquid 4 in the first liquid storage tank 21 to the nozzle 12 and to regulate the pressure of delivering the first spray liquid 4.

[0059] In this example, the first liquid storage tank 21, the fluid pressurization and stabilization system, the first solenoid valve 25, and the nozzle pipe 13 are connected in sequence via the first connecting pipe 26. When spraying begins, the fluid pressurization and stabilization system provides power to transport the first spray liquid 4 from the first liquid storage tank 21 to the nozzle 12, and then sprays it onto the workpiece through the nozzle 12. After spraying is completed, the fluid pressurization and stabilization system stops working, thereby stopping the delivery of the first spray liquid 4. The first liquid supply mechanism 2 has a simple structure and is easy to control and operate.

[0060] In one embodiment, such as Figure 1 and Figure 2As shown, the fluid pressurization and stabilization system includes a first fluid pump 22, a first filter 23, and a pressure sensor 24; the first fluid pump 22 is connected between the first liquid storage tank 21 and the first solenoid valve 25, the pressure sensor 24 is connected between the first fluid pump 22 and the first solenoid valve 25; the first filter 23 is connected between the first liquid storage tank 21 and the first solenoid valve 25.

[0061] In this example, the pressure sensor 24 is located between the first fluid pump 22 and the first solenoid valve 25, and is used to sense the pressure value of the first spray liquid 4 at that location; the first fluid pump 22 adjusts the pressure value of the first spray liquid 4 it outputs according to the pressure value of the first spray liquid 4 sensed by the pressure sensor 24, so as to maintain the stability of the pressure of the first spray liquid 4 in the first connecting pipe 26, so that the nozzle 12 can stably spray out the first spray liquid 4.

[0062] Preferably, the first filter 23 is disposed between the first liquid storage tank 21 and the first fluid pump 22; and / or, the first filter 23 is disposed between the first fluid pump 22 and the first solenoid valve 25. This design allows the installation position of the first filter 23 to be selected according to the properties of the first spray liquid 4, ensuring that the first filter 23 is installed in a suitable position and guaranteeing smooth delivery of the first spray liquid 4.

[0063] In one embodiment, such as Figure 1 As shown, the fluid pressurization and stabilization system also includes a back pressure device 29 and a fourth connecting pipe 210; one end of the fourth connecting pipe 210 is connected to the first liquid storage tank 21, and the other end of the fourth connecting pipe 210 is connected to the first connecting pipe 26 located between the pressure sensor 24 and the first solenoid valve 25; the back pressure device 29 is installed on the fourth connecting pipe 210. This design helps to better stabilize the pressure of the first sprayed liquid 4 in the first connecting pipe 26, ensuring that each nozzle 12 of the nozzle device 1 can stably spray the first sprayed liquid 4.

[0064] Preferably, the back pressure device 29 is a throttle valve or an overflow valve.

[0065] In one embodiment, such as Figure 1 As shown, the first liquid supply mechanism 2 also includes a first check valve 211, and the first solenoid valve 25, the first check valve 211 and the nozzle pipe 13 are connected in sequence through the first connecting pipe 26.

[0066] In this example, the first liquid storage tank 21, the fluid pressurization and stabilization system, the first solenoid valve 25, the first check valve 211, and the nozzle pipe 13 are connected in sequence through the first connecting pipe 26 to form a supply channel. The first check valve 211 is set between the first solenoid valve 25 and the nozzle pipe 13 so that the first spray liquid 4 can only flow from the first solenoid valve 25 to the nozzle pipe 13 and cannot flow from the nozzle pipe 13 to the first solenoid valve 25. It also prevents the second spray liquid 5 in the nozzle pipe 13 from flowing back into the first liquid storage tank 21 through the supply channel.

[0067] In one embodiment, such as Figure 1 As shown, the first liquid supply mechanism 2 also includes a second solenoid valve 27 and a second connecting pipe 28. The first liquid storage tank 21, the second solenoid valve 27 and the nozzle pipe 13 are connected in sequence through the second connecting pipe 28.

[0068] In this example, the nozzle pipe 13, the second solenoid valve 27, and the first liquid storage tank 21 are connected sequentially through the second connecting pipe 28 to form a return channel; thus, the supply channel and the return channel are merged to form a circulation channel; that is, the first liquid storage tank 21, the fluid pressurization and stabilization system, the first solenoid valve 25, the first one-way valve 211, the nozzle pipe 13, the second solenoid valve 27, and the first liquid storage tank 21 are connected sequentially through the first connecting pipe 26 and the second connecting pipe 28 to form a circulation channel; this allows the first spray liquid 4 in the first liquid storage tank 21 to be stirred when the first liquid supply mechanism 2 is restarted, so that the first spray liquid 4 remaining in the first liquid storage tank 21 and the newly added first spray liquid 4 can be mixed evenly, and the concentration of the first spray liquid 4 sprayed each time is consistent, ensuring that the performance of the sprayed first spray liquid 4 is the same; it also facilitates the removal of impurities retained in the nozzle pipe 13 and the nozzle pipe 122 during the maintenance or testing of the first liquid supply mechanism 2, avoiding impurities from clogging the nozzle 12.

[0069] In this embodiment, one end of the fourth connecting pipe 210 is connected to the second connecting pipe 28 located between the first liquid storage tank 21 and the second solenoid valve 27; that is, one end of the fourth connecting pipe 210 is connected to the first liquid storage tank 21 through the second connecting pipe 28.

[0070] In one embodiment, such as Figure 1 As shown, the second liquid supply mechanism 3 includes a second liquid storage tank 31, a second fluid pump 32, and a third connecting pipe 33; the second liquid storage tank 31, the second fluid pump 32, and the nozzle pipe 13 are connected in sequence through the third connecting pipe 33; the second fluid pump 32 is used to transport the second spray liquid 5 in the second liquid storage tank 31 to the nozzle 12.

[0071] In this example, the second liquid storage tank 31, the second fluid pump 32, and the nozzle pipe 13 are connected in sequence via a third connecting pipe 33 to form an auxiliary channel. When the second liquid 5 needs to be sprayed, the second fluid pump 32 provides power to transport the second liquid 5 in the second liquid storage tank 31 to the nozzle 12 through the auxiliary channel. When the second liquid 5 does not need to be sprayed, the second fluid pump 32 stops working, thereby stopping the delivery of the second liquid 5. The second liquid supply mechanism 3 has a simple structure and is easy to control and operate.

[0072] In one embodiment, such as Figure 1 As shown, the second liquid supply mechanism 3 also includes a second filter 34. The second liquid storage tank 31, the second filter 34, and the second fluid pump 32 are connected in sequence through a third connecting pipe 33. That is to say, the second filter 34 is installed in the auxiliary channel to help filter impurities in the second spray liquid 5 and ensure smooth spraying from the nozzle 12.

[0073] In this embodiment, the third connecting pipe 33 is connected to the nozzle pipe 13 via the first connecting pipe 26 located between the first one-way valve 211 and the nozzle pipe 13.

[0074] In one embodiment, the second liquid supply mechanism 3 further includes a second check valve 35, and the second fluid pump 32, the second check valve 35 and the nozzle pipe 13 are connected in sequence through a third connecting pipe 33. This design ensures that the second spray liquid 5 can only flow from the second fluid pump 32 to the nozzle pipe 13, and cannot flow from the nozzle pipe 13 to the second fluid pump 32. It also prevents the first spray liquid 4 in the nozzle device 1 from flowing into the second storage tank 31 through the second fluid pump 32.

[0075] like Figure 8 As shown, the present invention also provides a method for operating the spraying device described in any of the foregoing embodiments, comprising the following steps:

[0076] S801: Obtain the spraying area 6 on the workpiece;

[0077] S802: Analyze and process the injection area 6 to obtain injection data;

[0078] S803: Obtain the real-time distance between the workpiece and the nozzle device 1, as well as the real-time speed of the workpiece relative to the nozzle device 1;

[0079] S804: Control the first liquid supply mechanism 2 to supply the first liquid 4 to the nozzle 12, and / or control the second liquid supply mechanism 3 to supply the second liquid 5 to the nozzle 12; control the nozzle device 1 to spray the workpiece according to the spray data, real-time distance and real-time speed.

[0080] The area to be sprayed (6) refers to the area on the workpiece that needs to be sprayed. Spray data refers to the on / off status and on / off time of each nozzle 12 in the nozzle assembly 1. Real-time distance refers to the distance between the workpiece and the nozzle assembly 1 detected at the current moment. Real-time speed refers to the speed at which the workpiece moves relative to the nozzle assembly 1 detected at the current moment.

[0081] As an example, such as Figures 6-8 As shown, a controller is used to acquire the area 6 to be sprayed on the workpiece. Specifically, the graphic of the area 6 to be sprayed is imported into the controller. The controller forms a square area containing the area 6 to be sprayed and divides the square area into multiple square unit areas 7. The square unit areas 7 distributed along the first direction form a column of square unit areas 7, and the square unit areas 7 distributed along the second direction form a row of square unit areas 7. Each square unit area 7 in each column of square unit areas 7 corresponds one-to-one with each nozzle 12 in a row of nozzles 12. When the Nth column of square unit areas 7 moves to be opposite to a row of nozzles 12 of the nozzle device 1, the nozzle 12 opposite to the square unit area 7 located in the area 6 to be sprayed in the Nth column of square unit areas 7 switches to the open state, realizing spraying of the square unit area 7. In zone 7, the nozzles 12 opposite to the square unit zones 7 located outside the spraying zone 6 are switched to the closed state to avoid accidental spraying, thereby obtaining spraying data opposite to the spraying zone 6. A sensor is used to obtain the real-time distance between the workpiece and the nozzle device 1 and the real-time speed of the nozzle device 1 relative to the workpiece, and the real-time distance and real-time speed are transmitted to the controller. When the workpiece approaches the nozzle device 1, the controller controls the first liquid supply mechanism 2 to provide the first liquid 4 to the nozzle 12, and / or controls the second liquid supply mechanism 3 to provide the second liquid 5 to the nozzle 12. And according to the spraying data, real-time distance and real-time speed, when the workpiece passes through the spraying zone 6 and passes through the nozzle device 1, from the first column of square unit zones 7 to the last column of square unit zones 7, the controller controls each nozzle 12 to open and close, thus completing the spraying of the workpiece.

[0082] This design allows the graphic of the area to be sprayed 6 to be imported into the controller before spraying, obtaining spraying data. The controller can then control each nozzle 12 to open or close at the appropriate time based on this data. Employing a line-based, surface-based spraying method, it effectively and precisely sprays the workpiece's area 6, improving both spraying efficiency and accuracy. Furthermore, for different spraying needs, only different graphics of the area to be sprayed 6 need to be imported, making operation simpler and more convenient.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spraying apparatus characterized by, The nozzle device comprises a support and a row of nozzles arranged on the support, the row of nozzles is arranged along a first direction, and the row of nozzles is connected with the liquid supply device; The liquid supply device comprises a first liquid supply mechanism and a second liquid supply mechanism; the first liquid supply mechanism is connected with the row of nozzles and used for supplying the nozzles with first spraying liquid; the second liquid supply mechanism is connected with the row of nozzles and used for supplying the nozzles with second spraying liquid; The nozzle device further comprises a nozzle pipeline, and the first liquid supply mechanism and the second liquid supply mechanism are communicated with the nozzles through the same nozzle pipeline; The first liquid supply mechanism comprises a first liquid storage tank and a first one-way valve, and the first one-way valve is arranged between the first liquid storage tank and the nozzle pipeline; The second liquid supply mechanism comprises a second liquid storage tank and a second one-way valve, and the second one-way valve is arranged between the second liquid storage tank and the nozzle pipeline. Each nozzle comprises a nozzle body, a nozzle pipeline and a nozzle electronic valve; one end of the nozzle pipeline is connected with the nozzle pipeline, and the other end is connected with the nozzle body; the nozzle electronic valve is arranged on the nozzle pipeline and used for controlling the flow of the nozzle pipeline.

2. The injection apparatus of claim 1, wherein The nozzle device is provided in multiple, and all the nozzles of the multiple nozzle devices are arranged on the same straight line.

3. The injection apparatus of claim 1, wherein The nozzle device is provided in multiple, and the projections of the multiple nozzle devices along a second direction at least partially overlap, and all the nozzles on the multiple nozzle devices are staggered, and the first direction is perpendicular to the second direction.

4. The injection apparatus of claim 1, wherein The nozzle device is provided in multiple, and the projections of the multiple nozzle devices along the first direction do not overlap, and the projections of the multiple nozzle devices along the second direction do not overlap, and the first direction is perpendicular to the second direction.

5. The injection apparatus of claim 1, wherein, The first liquid supply mechanism further comprises a fluid pressure boosting and stabilizing system, a first electromagnetic valve and a first connecting pipeline; 6. The injection apparatus of claim 2, wherein The first liquid storage tank, the fluid pressure boosting and stabilizing system, the first electromagnetic valve and the nozzle pipeline are sequentially connected through the first connecting pipeline; The fluid pressure boosting and stabilizing system is used for delivering the first spraying liquid in the first liquid storage tank to the nozzles and adjusting the pressure of the delivered first spraying liquid. The fluid pressure boosting and stabilizing system comprises a first fluid pump, a first filter and a pressure sensor; the first fluid pump is connected between the first liquid storage tank and the first electromagnetic valve, the pressure sensor is connected between the first fluid pump and the first electromagnetic valve; and the first filter is connected between the first liquid storage tank and the first electromagnetic valve.

7. The injection apparatus of claim 6, wherein, The first liquid supply mechanism further comprises a second electromagnetic valve and a second connecting pipeline, and the first liquid storage tank, the second electromagnetic valve and the nozzle pipeline are sequentially connected through the second connecting pipeline.

8. The injection apparatus of claim 6, wherein, The second liquid supply mechanism further comprises a second fluid pump and a third connecting pipeline; the second liquid storage tank, the second fluid pump and the nozzle pipeline are sequentially connected through the third connecting pipeline; 9. The injection apparatus of claim 2, wherein, The second fluid pump is used for delivering the second spraying liquid in the second liquid storage tank to the nozzles. The method comprises the following steps:

10. A method of operation suitable for use in the injection apparatus of any one of claims 1-9, characterized in that, Obtaining a spraying area on a workpiece; Analyzing and processing the spraying area to obtain spraying data; ​ acquire a real-time distance between the workpiece and the shower nozzle device and a real-time speed of the workpiece relative to the shower nozzle device; control the first liquid supply mechanism to supply the first liquid to the nozzle, and / or control the second liquid supply mechanism to supply the second liquid to the nozzle; control the shower nozzle device to spray the workpiece according to the spraying data, the real-time distance and the real-time speed.

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