Nozzle, spray head and die casting machine

Abstract

The embodiment of the utility model provides a nozzle, a spray head and a die casting machine, the nozzle comprises a body, a liquid inlet channel and an air inlet channel are formed in the body, the liquid inlet channel is provided with a liquid inlet, the air inlet channel is provided with an air inlet, and the liquid inlet and the air inlet are located on the same side of the body; the ball head is installed on the side, away from the air inlet, of the body, and a spraying opening is formed in the side, away from the body, of the ball head; one end of the flow mixing pipe is communicated with the liquid inlet channel and the air inlet channel, and the other end of the flow mixing pipe is connected with the ball head; and the adjusting part is arranged on the body, one end of the adjusting part is movably arranged in the liquid inlet channel, and the adjusting part is used for adjusting the size of the liquid inlet channel. According to the nozzle, the spray head and the die casting machine provided by the embodiment of the invention, a piston assembly in an existing nozzle is simplified, and the flow of the release agent is controlled by adjusting the size of the liquid inlet channel through the adjusting piece, so that the problem of blockage of the nozzle can be effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of die casting, and particularly relates to a nozzle, a spray head and a die casting machine. BACKGROUND

[0002] Pressure casting (hereinafter referred to as die casting) is a common metal casting process, specifically a process of injecting molten metal liquid into a mold cavity at high pressure for cooling and forming. Compared with traditional casting methods, die castings have the advantages of better surface roughness, good size consistency, higher tensile strength, and the ability to manufacture complex parts.

[0003] In recent years, the die casting process has been widely used in the field of new energy vehicle manufacturing. With the progress of die casting process and die casting machine manufacturing technology, the size of parts that can be directly cast by die casting has been increasing. For example, large new energy vehicle parts such as the front engine compartment, rear floor and battery shell can be formed by die casting machine in one step, greatly improving the overall strength of the parts and reducing the assembly cost. However, the increase in the size of die cast parts necessitates the use of super-large die casting units with extremely high production and downtime costs, so the stability of the spray machine, which is essential in the die casting unit, is crucial.

[0004] The current nozzle uses control gas to push the small piston inside to open the release agent. After the control gas is turned off, the spring at the back of the piston resets, and the nozzle release agent is closed. Since the release agent usually contains wax and organic matter, the wax will precipitate, and the organic matter will attract the reproduction and death of bacteria and other microorganisms, and will easily accumulate and form flocculent substances, thereby affecting the sliding of the nozzle piston and causing the nozzle to be blocked. Content of the utility model

[0005] Therefore, the application provides a nozzle, a spray head and a die casting machine to solve the technical problem of blockage of the existing nozzle.

[0006] In a first aspect, the application provides a nozzle, comprising:

[0007] a body, the body is provided with a liquid inlet channel and an air inlet channel, the liquid inlet channel has a liquid inlet, and the air inlet channel has an air inlet, the liquid inlet and the air inlet are located on the same side of the body;

[0008] a ball head, the ball head is installed on the side of the body away from the air inlet, and the side of the ball head away from the body is provided with a spray opening;

[0009] a mixing pipe, one end of the mixing pipe is in communication with the liquid inlet channel and the air inlet channel, and the other end of the mixing pipe is connected with the ball head; and

[0010] An adjusting member is arranged on the body, and one end of the adjusting member is movably arranged in the liquid inlet channel, and the adjusting member is used for adjusting the size of the liquid inlet channel.

[0011] In some embodiments, the body is further provided with a fixing plate on the side away from the air inlet, and a containing cavity is formed between the fixing plate and the body, and the ball head is arranged in the containing cavity.

[0012] In some embodiments, the outer side of the body is provided with a positioning groove, and the fixing plate is provided with a positioning protrusion which is insertedly matched with the positioning groove.

[0013] In some embodiments, a sealing member is further arranged between the body and the fixing plate, and the sealing member is used for sealing the connecting gap between the ball head and the body.

[0014] In the second aspect, the embodiments of the present application provide a nozzle, comprising:

[0015] A support frame is provided with a mounting plate on one side.

[0016] The nozzle of the first aspect is detachably mounted on the mounting plate; and

[0017] A pneumatic ball valve is mounted on the top of the support frame, and the pneumatic ball valve is used for controlling the spraying amount of the nozzle.

[0018] In some embodiments, the mounting plate is provided with a first joint and a second joint for providing compressed air to the nozzle, and the first joint or the second joint is used for connecting with the air inlet of the nozzle.

[0019] In some embodiments, the mounting plate is further provided with a release agent control air reserved interface, and the interface is located in the middle of the mounting plate.

[0020] In some embodiments, the mounting plate is provided with a third joint for cooperating with the liquid inlet on the nozzle, and a one-way valve is further arranged between the third joint and the liquid inlet, and the one-way valve is used for controlling the release agent to flow from the third joint to the nozzle in one direction.

[0021] In some embodiments, the mounting plate is further detachably mounted with an air nozzle.

[0022] In some embodiments, the top of the support frame is further provided with a mounting flange for connecting with a machine arm.

[0023] In some embodiments, the top of the support frame is further provided with a release agent joint and an air joint.

[0024] In some embodiments, the top of the support frame is further provided with a valve island and a control piston, the valve island is used to control the actions of the plurality of nozzles simultaneously or separately, and the control piston is used to drive the opening and closing of the nozzles.

[0025] In some embodiments, the installation plate is provided in plurality, and one installation plate is provided with one group of nozzles.

[0026] In some embodiments, the array of installation plates is arranged on one side of the support frame.

[0027] In the third aspect, the embodiments of the present application provide a die casting machine, comprising the nozzle of the second aspect and a control system, wherein the control system is used to control the working of the nozzle.

[0028] The nozzle, the nozzle head and the die casting machine provided by the embodiments of the present application redesign the nozzle, cancel the unstable piston part in the nozzle, control by using the stable pneumatic ball valve, completely avoid the situation that the spring aging leads to the failure of the nozzle, and the nozzle can be almost maintained zero, and the adjusting part is used to adjust the size of the liquid inlet channel to control the flow of the release agent, so that the problem of nozzle blockage can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a first perspective structural schematic view of the nozzle provided by the embodiments of the present application;

[0031] Figure 2 is a second perspective structural schematic view of the nozzle provided by the embodiments of the present application;

[0032] Figure 3 is a third perspective structural schematic view of the nozzle provided by the embodiments of the present application;

[0033] Figure 4 is a cross-sectional view in the A-A direction of Figure 3

[0034] Figure 5 is a cross-sectional view in the B-B direction of Figure 3

[0035] Figure 6 is a structural schematic view of the nozzle head provided by the embodiments of the present application;

[0036] ​​Figure 7 is Figure 6 Structure diagram of mounting plate in the middle;

[0037] Figure 8 is Figure 6 Enlarged view of C in the middle.

[0038] In the drawings:

[0039] 10, nozzle; 11, body; 110, liquid inlet; 111, air inlet; 112, positioning groove; 12, ball head; 120, spray port; 13, mixing pipe; 14, adjusting piece; 15, fixed plate; 151, positioning protrusion; 16, sealing piece;

[0040] 20, spray head; 21, support frame; 211, mounting plate; 212, air nozzle; 22, air control ball valve; 23, first joint; 24, second joint; 240, interface; 25, third joint; 250, one-way valve; 26, mounting flange; 27, release agent joint; 28, air joint; 29, control piston; 30, valve island. DETAILED DESCRIPTION

[0041] In the following description, for the purposes of explanation and not limitation, specific details are set forth, such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the application. However, it will be apparent to those skilled in the art that the embodiments of the application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the application with unnecessary detail.

[0042] It should also be understood that the term “and / or” as used herein, refers to any one or more of the associated listed items, and all possible combinations of the associated listed items.

[0043] It should be noted that when an element is referred to as being “connected to” or “fixed to” another element, it can be directly connected to or fixed to the other element or indirectly connected to or fixed to the other element via a further element.

[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positions based on the directions or positions shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, in the description of the present application embodiment specification and the appended claims, the terms "first", "second", "third" and the like are only used for differentiation of description, and cannot be understood as indicating or implying relative importance.

[0046] The reference "some embodiments" or "some embodiments" and the like described in the present application embodiment specification means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in some embodiments", "in some embodiments", "in other some embodiments", "in some other embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized otherwise. The terms "include", "contain", "have" and their variations mean "include but are not limited to", unless otherwise specifically emphasized otherwise. "Multiple" means two and more than two.

[0047] The current nozzle has the following disadvantages:

[0048] 1. The release agent will enter the internal cavity through the exhaust hole, and the release agent usually has a certain degree of corrosion and deposition, which is easy to corrode and adhere to the surface of the parts through which the release agent flows, causing the piston seal to fail, causing the piston to not slide normally, and eventually causing the nozzle to leak water or the spray to have no release agent.

[0049] 2. The nozzle opening and closing frequency is high, which can be as high as one start-stop per second during the spraying process. The spring will age or even short circuit over a long period of time, causing problems such as slow response of the atomizer or failure to close tightly.

[0050] 3. For super large die casting machines, the die casting process is complex, there are many auxiliary equipment, the overall investment is huge, and the cost of each set of mold is extremely high; at the same time, each set of mold is equipped with several hundred nozzles, and the nozzle leakage or the spray without release agent will seriously affect the qualified rate of the product, and also cause problems such as abnormal demolding, mold damage, etc. The cost of large molds is extremely high, and the disassembly and assembly during maintenance is particularly time-consuming, and the consequences are very serious.

[0051] The first aspect of the present application embodiment provides a nozzle 10, such as Figure 1 to Figure 5As shown, the nozzle 10 includes a body 11, a ball head 12, a mixing pipe 13, and an adjusting piece 14;

[0052] The body 11 is provided with a liquid inlet channel and an air inlet channel, the liquid inlet channel is provided with a liquid inlet 110, and the air inlet channel is provided with an air inlet 111, the liquid inlet 110 and the air inlet 111 are located on the same side of the body 11;

[0053] The ball head 12 is installed on the side of the body 11 away from the air inlet 111, and the side of the ball head 12 away from the body 11 is provided with a spray port 120;

[0054] One end of the mixing pipe 13 is in communication with the liquid inlet channel and the air inlet channel, and the other end of the mixing pipe 13 is connected with the ball head 12;

[0055] The adjusting piece 14 is arranged on the body 11, and one end of the adjusting piece 14 is movably arranged in the liquid inlet channel, and the adjusting piece 14 is used for adjusting the size of the liquid inlet channel.

[0056] The nozzle 10 provided by the embodiment of the present application simplifies the piston assembly in the existing nozzle 10, and the size of the liquid inlet channel is adjusted by the adjusting piece 14 to control the flow of the release agent, so that the problem of nozzle 10 blockage can be effectively improved.

[0057] In application, the body 11 is provided with a liquid inlet channel and an air inlet channel, the liquid inlet 110 of the liquid inlet channel is used for the release agent to enter, and the air inlet 111 of the air inlet channel is used for the compressed air to enter.

[0058] In application, the ball head 12 has the functions of adjusting the flow of the release agent, sealing the nozzle 10, switching the nozzle 10, and resisting blockage; wherein by rotating or moving the ball head 12, the opening size of the internal channel of the nozzle 10 can be adjusted, so as to control the amount of liquid or gas flowing through the nozzle 10, so as to realize the adjustment of the spray flow. The ball head 12 is usually tightly matched with the seat surface in the nozzle 10 to form an effective sealing interface. When the ball head 12 is closed, it can completely prevent the fluid from flowing, ensuring the pressure stability of the system and preventing leakage. The ball head 12 can be used as a switch, which can quickly open or close the nozzle 10 through a simple rotating or pushing and pulling action. The ball head 12 is usually designed to be simple without complex internal structure, which helps to reduce the risk of impurities in the fluid being stuck and improve the anti-blocking ability of the nozzle 10. The ball head 12 is usually made of wear-resistant and corrosion-resistant materials, such as stainless steel, ceramic or Teflon-coated metal, to ensure its long-term reliable work in harsh working environment.

[0059] In application, the mixed flow tube 13 is an external mixing flow tube, which functions in the nozzle 10 include: the external mixing flow tube allows different types of fluids (such as liquid and gas) to meet and mix outside the nozzle 10. This reduces the need for complex internal structures of the nozzle 10, simplifies the design, and reduces manufacturing costs. Since the mixing occurs outside the nozzle 10, the risk of internal piping and spray holes being clogged by impurities or deposits is reduced. In the external mixing flow tube, fluids can collide and disperse with each other at high speed, forming smaller droplets or bubbles, thereby achieving more uniform mixing effect. This is crucial for spray applications (such as release agent spraying), because good mixing can ensure more uniform spraying, reduce waste and improve product quality. The external mixing flow tube can accommodate fluids of different properties, including water-based liquids, oil-based liquids, gases, etc. This flexibility enables the nozzle 10 to be used in a variety of different application scenarios. Since the mixing process occurs outside the nozzle 10, it is easier to clean and maintain the internal structure of the nozzle 10, prolonging the service life of the nozzle 10.

[0060] The external mixing flow tube 13 is a flexible tube, allowing the nozzle ball 120 to rotate at multiple angles, achieving flexible adjustment of the spray point to meet the actual needs of complex molds, and different requirements of high and low temperature zones and mold surfaces of different complexity for spraying. At the same time, the external mixing flow tube 13 avoids the meeting of release agent and air inside the nozzle 10, avoiding the excessive pressure of one medium affecting the spraying of another medium.

[0061] The working principle includes: different fluids enter the nozzle 10 through their respective inlets, at least one of which is a fluid (usually a gas, such as compressed air) introduced through the external mixing flow tube. When the fluid passes through the spray hole of the nozzle 10, it will accelerate due to the constriction effect of the spray hole, forming a high-speed jet. The high-speed sprayed fluid meets other fluids introduced through the external mixing flow tube outside the nozzle 10. Due to the impact force of high-speed flow, the two fluids quickly mix, forming fine droplets or bubbles. The mixed fluid continues to move forward and spreads in the air, eventually forming a uniform spray.

[0062] In application, the adjusting member 14 is an adjusting screw, and the body 11 is provided with a threaded hole matched with the adjusting screw, so that the adjusting screw can be moved to be arranged in the liquid inlet channel, so that by rotating the adjusting screw, the flow of the release agent is controlled by controlling the length of the adjusting screw in the liquid inlet channel, to realize the adjustable flow of the release agent of the nozzle 10, to meet the different needs of each point of the mold surface for spraying in actual die casting. Improve the spraying efficiency, while saving the consumption of release agent.

[0063] In some embodiments, as Figure 3 and Figure 4As shown, the body 11 is further provided with a fixing plate 15 on the side away from the air inlet 111, and a containing cavity is formed between the fixing plate 15 and the body 11, and the ball head 12 is installed in the containing cavity. In this way, the installation stability of the ball head 12 is improved.

[0064] In some embodiments, as shown in the drawings, Figure 4 As shown, the outer side of the body 11 is provided with a positioning groove 112, and the fixing plate 15 is provided with a positioning protrusion 151 which is inserted and matched with the positioning groove 112. Through the positioning and fixing of the positioning protrusion 151 and the positioning groove 112, the fixing plate 15 and the body 11 can be effectively connected and fixed, so that the ball head 12 can be quickly fixed.

[0065] In some embodiments, as shown in the drawings, Figure 4 As shown, a sealing element 16 is further arranged between the body 11 and the fixing plate 15, and the sealing element 16 is used to seal the connection gap between the ball head 12 and the body 11. In application, the sealing element 16 is a sealing ring, a sealing rubber strip or the like. In this way, the sealing performance of the nozzle 10 is improved.

[0066] The application also provides a spray head 20, as shown in the drawings, Figure 6 to Figure 8 The spray head 20 comprises a support frame 21, the nozzle 10 of the first aspect, and a pneumatic ball valve 22.

[0067] One side of the support frame 21 is provided with a mounting plate 211;

[0068] The nozzle 10 is detachably mounted on the mounting plate 211;

[0069] The pneumatic ball valve 22 is installed on the top of the support frame 21, and is used to control the spraying amount of the nozzle 10.

[0070] The spray head 20 provided by the application adopts the nozzle 10 provided by the first aspect, and the spring aging and nozzle 10 failure do not exist, and the nozzle 10 can be almost zero maintenance; the piston in the nozzle 10 is completely removed, the weight of the nozzle 10 is effectively reduced, and instead, the pneumatic ball valve 22 is used for control, so that the blockage problem of the nozzle 10 in the prior art is effectively avoided.

[0071] In application, the overall weight of the spray head 20 is lighter, and at the same time, the installation position of the ball valve is closer to the robot, and the load advantage of the robot is greater, that is, the robot load reservation is greater, and more nozzles 10 can be driven, that is, the spraying scheme advantage is greater. The ball valve is directly placed on the upper surface of the support frame 21, and can be better maintained and replaced. The reaction is sensitive, compared with the structure of the built-in atomizer, the control of the pneumatic ball valve 22 is more stable and sensitive, and the adaptability to the harsh working conditions of high temperature, high vibration, high frequency, high humidity, high pressure and high dust in die casting field is stronger.

[0072] In some embodiments, such as Figure 7 As shown, the mounting plate 211 is equipped with a first connector 23 and a second connector 24 for supplying compressed air to the nozzle 10. The first connector 23 or the second connector 24 is used to connect to the air inlet 111 of the nozzle 10. The first connector 23 is a quick-connect spray air connector, and the second connector 24 is a quick-connect blow air connector. The main function of the quick-connect spray air connector is to provide high-pressure compressed air for spraying the release agent into the nozzle 20. This compressed air, after mixing with the release agent, forms fine atomized particles through the nozzle 10, achieving a uniform spraying effect. By adjusting the pressure of the compressed air entering the nozzle 20, the spraying force and range of the release agent can be controlled. Appropriate spraying force helps ensure that the release agent evenly covers the mold surface while avoiding waste and contamination. The quick-connect design allows the operator to quickly connect or disconnect the compressed air supply when needed, facilitating the installation, disassembly, and maintenance of the equipment. The main function of the quick-connect blow air connector is to clean the mold surface with high-pressure compressed air before or after spraying the release agent, removing residual metal shavings, dust, or other impurities. This helps ensure a clean mold surface, improving the adhesion of the release agent and the quality of the casting. In some cases, air blower quick couplings can also be used to blow cool air onto the mold surface, helping to lower the mold temperature and prevent overheating from affecting casting quality and production efficiency. Similar to spray quick couplings, air blower quick couplings also allow operators to quickly connect or disconnect the compressed air supply, facilitating equipment installation, disassembly, and maintenance.

[0073] In some embodiments, such as Figure 7 As shown, the mounting plate 211 is also equipped with a pre-installed interface 240 for mold release agent control air, located in the middle of the mounting plate 211. By supplying compressed air to the pre-installed interface 240, the opening and closing of the nozzle 10 can be controlled. For example, when spraying is required, the compressed air pushes the valve core or other control mechanism inside the nozzle 10 to open the nozzle 10; when spraying is not required, the air supply stops, and the nozzle 10 automatically closes. Compressed air can also be used to adjust the opening degree of the nozzle 10, thereby controlling the flow rate of the mold release agent. By adjusting the air pressure, precise control of the spraying amount can be achieved. After the compressed air is mixed with the mold release agent, it helps to atomize the mold release agent into fine particles, ensuring uniform coverage of the mold surface. After each spraying, high-pressure air can be supplied through the reserved interface 240 to quickly blow away the nozzle 10 and spray head 20, preventing release agent residue from clogging the spray holes and extending the service life of the equipment. In high-temperature environments, the reserved interface 240 can also be used to blow cold air onto the mold surface to help reduce the mold temperature and prevent the mold from overheating and affecting the quality of castings and production efficiency.

[0074] In some embodiments, such as Figure 7As shown, the mounting plate 211 is provided with a third joint 25 for cooperating with the liquid inlet 110 on the nozzle 10, and a one-way valve 250 is further provided between the third joint 25 and the liquid inlet 110, which is used to control the one-way flow of the release agent from the third joint 25 to the nozzle 10. The third joint 25 is a quick joint of the release machine, which is used to provide the release agent to the nozzle 10.

[0075] In application, since the release agent flow of each nozzle 10 is adjustable, when the flow of the nozzles 10 in the same group is inconsistent, the compressed air will flow from the release agent channel to other nozzles 10 when the nozzle 10 is used for blowing, which will cause the release agent in the nozzle 10 and the pipeline to be sprayed out through the nozzle 10, that is, the atomization phenomenon occurs when blowing, which will also affect the qualified rate of spraying. At the same time, the spray head 20 needs more time to completely dry the release agent in the nozzle 10 and the pipeline to realize real blowing, which affects the entire spraying rhythm. And by increasing the one-way valve 250, the release agent can only flow in one direction, thereby avoiding this problem.

[0076] Further, the one-way valve 250 has a certain opening pressure, and after the air control ball valve 22 is closed, the release agent remaining in the pipeline between the air control ball valve 22 and the nozzle 10 will not drip, and at the same time, the release agent is left near the nozzle, which can be quickly supplied during spraying.

[0077] In some embodiments, as shown in Figure 8 As shown, the mounting plate 211 is further detachably provided with an air nozzle 212. The air nozzle 212 is a strong flat mouth air nozzle 212. The air nozzle 212 can produce a flat, high impact force jet, consume less air, and produce a small noise energy-saving nozzle 10, which is widely used in various industrial cleaning, cooling, release agent spraying and other fields. It provides strong impact force and wide coverage by spraying compressed air or liquid in a flat fan shape.

[0078] In some embodiments, as shown in Figure 6 As shown, the top of the support frame 21 is further provided with a mounting flange 26 for connecting with the machine arm. The overall weight of the new spray head 20 is lighter, and at the same time, the installation position of the ball valve is closer to the machine arm, and the load advantage of the machine arm is greater, that is, the machine arm has a larger load reservation, which can drive more nozzles 10, that is, the spraying scheme has a greater advantage.

[0079] In some embodiments, as shown in Figure 6 As shown, the top of the support frame 21 is further provided with a release agent joint 27 and an air joint 28. The spray head 20 is provided with release agent and compressed air by connecting an external release agent storage tank and a compressed air machine.

[0080] In some embodiments, as shown in Figure 6As shown, the top of the support frame 21 is also mounted with a valve island 30 and a control piston 29, the valve island 30 is used to control the actions of multiple nozzles 10 simultaneously or separately, and the control piston 29 is used to drive the opening and closing of the nozzles 10.

[0081] In some embodiments, as shown in FIG. 1, the installation plate 211 is provided with a plurality of nozzles 10, and one installation plate 211 is provided with a group of nozzles 10. In this way, multiple nozzles 10 can be installed to achieve a more effective spraying scheme. In some embodiments, the installation plate 211 is arranged in an array on one side of the support frame 21. In this way, the appearance is more neat and tidy, and it is also convenient for management and operation. Figure 6

[0082] The application also provides a die casting machine (not shown in the figure) comprising the nozzle 20 and the control system according to the second aspect, and the control system is used to control the working of the nozzle 20.

[0083] The die casting machine provided by the application has all the beneficial effects of the first aspect and the second aspect.

[0084] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0085] The above-described embodiments are only used to illustrate the technical solutions of the application, but not limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the protection scope of the embodiments of the application.​

Claims

1. A nozzle characterized by, The body is provided with a liquid inlet channel and an air inlet channel, the liquid inlet channel is provided with a liquid inlet, and the air inlet channel is provided with an air inlet, the liquid inlet and the air inlet are located on the same side of the body. A ball head is installed on the side of the body away from the air inlet, and the ball head is provided with a spray outlet away from the body. A mixing pipe is connected to the liquid inlet channel and the air inlet channel, and the other end of the mixing pipe is connected to the ball head. An adjusting member is arranged on the body, and one end of the adjusting member is movably arranged in the liquid inlet channel, and the adjusting member is used for adjusting the size of the liquid inlet channel. The side of the body away from the air inlet is also provided with a fixing plate, and the fixing plate and the body form a containing cavity. The outer side of the body is provided with a positioning groove, and the fixing plate is provided with a positioning protrusion, and the positioning protrusion and the positioning groove are inserted and matched.

2. The nozzle of claim 1, wherein A sealing member is arranged between the body and the fixing plate, and the sealing member is used for sealing the connection gap between the ball head and the body.

3. The nozzle of claim 2, wherein The support frame is provided with a mounting plate on one side.

4. The nozzle of claim 2, wherein The nozzle of any one of claims 1 to 4 is detachably mounted on the mounting plate.

5. A showerhead, characterized by, A pneumatic ball valve is installed on the top of the support frame, and the pneumatic ball valve is used for controlling the spray amount of the nozzle. The mounting plate is provided with a first joint and a second joint for providing compressed air to the nozzle, and the first joint or the second joint is used for connecting with the air inlet of the nozzle. And / or, the mounting plate is also provided with a release agent control air reserved interface, and the interface is located in the middle of the mounting plate. The mounting plate is provided with a third joint for cooperating with the liquid inlet on the nozzle, and a one-way valve is arranged between the third joint and the liquid inlet, and the one-way valve is used for controlling the one-way flow of the release agent from the third joint to the nozzle. The mounting plate is also detachably mounted with an air nozzle.

6. The showerhead of claim 5, wherein And / or, the top of the support frame is also provided with a mounting flange for connecting with a machine arm. And / or, the top of the support frame is also provided with a release agent joint and an air joint.

7. The showerhead of claim 6, wherein And / or, the top of the support frame is also mounted with a valve island and a control piston, the valve island is used for simultaneously or separately controlling the actions of a plurality of nozzles, and the control piston is used for driving the opening and closing of the nozzle.

8. The showerhead of claim 5, wherein The mounting plate is provided with a plurality of mounting plates, and one mounting plate corresponds to a group of nozzles. And / or, the mounting plate array is arranged on one side of the support frame. The nozzle as claimed in any one of claims 5 to 9 and a control system for controlling the operation of the nozzle are included. ​ 9. The showerhead of any of claims 5-8, wherein, ​ ​ 10. A die casting machine characterized by comprising: ​

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