A high efficiency metal product spraying apparatus

Abstract

The application discloses a kind of high-efficiency metal product spraying equipment, it is related to metal product spraying technical field, including rack, the side of the rack is provided with PLC controller, the side above the rack is provided with mesh belt conveyor, the other side above the mounting bracket is provided with intermittent feeding assembly, the intermittent feeding assembly includes cylinder, the fixed end of the cylinder is hinged to rack, the intermittent feeding assembly is used to control the intermittent transport of metal product on mesh belt conveyor, the blanking end of the mesh belt conveyor is provided with drying assembly.The application realizes the full-process automation from conveying, spraying, feeding to drying by the centralized control of PLC controller to servo motor, hydraulic rod, hydraulic cylinder, cylinder and air heater, reduces manual intervention, effectively improves the high-efficiency operation.

Description

Technical Field

[0001] This invention relates to the field of metal product spraying technology, and in particular to a high-efficiency metal product spraying equipment. Background Technology

[0002] Metal product spraying equipment refers to a special tool used to cover the surface of metal products with a protective or decorative layer. Its core function is to uniformly adhere paint, powder or other materials to the surface of metal substrate through physical or chemical methods. When the cylinder drives the piston, the cylinder serves as a power source. The reciprocating motion of the piston realizes the functions of pressurizing, conveying or atomizing the paint, forming a coating with anti-corrosion, wear-resistant, insulating and aesthetic properties.

[0003] A metal product processing spraying structure with authorization publication number CN220310783U includes a spraying box. The front and back of the spraying box are fixedly connected to a fixing plate. A motor is fixedly installed on the right side of the fixing plate on the front of the spraying box. In this invention, the motor first drives the fixing roller to rotate, which in turn drives a conveyor belt to transport the metal product into the spraying box. Then, an electric push rod drives a moving plate to clamp and limit the metal product at the bottom of the spray box. Finally, a water pump pumps paint from the storage tank through a support pipe and the spray box, which is then sprayed onto the surface of the metal product by a nozzle. The sprayed metal product is then conveyed out of the spraying box by the conveyor belt, thus providing the advantage of facilitating continuous, one-time spraying of metal products.

[0004] However, some problems still exist in the use of existing devices; 1. The reference patent uses a conveyor belt to transport metal products into the spraying box. Since the conveyor belt runs continuously, it is difficult to accurately control the dwell time of the metal products in the spraying area. During continuous conveying and spraying, the position and angle of the spray gun are relatively fixed. For some complex-shaped metal products, such as workpieces with holes, grooves or special structures, it is difficult to ensure that the paint is evenly covered on all surfaces. When the metal products move quickly on the conveyor belt, some areas may not be effectively sprayed by the spray gun, forming spraying dead corners. 2. At the same time, the liquid coating adheres to the surface of the sprayed metal product. If the coating is not dried and cured in time, its surface tension will change, resulting in an uneven surface similar to orange peel, i.e., the orange peel phenomenon. This may also cause small holes to form on the coating surface, i.e., pinholes. These defects will also affect the appearance quality of the product. In addition, due to the lack of a drying function, the sprayed metal products need to wait for the coating to dry naturally in the natural environment or be transferred to a special drying area, which takes a long time and reduces production efficiency. Summary of the Invention

[0005] This invention provides a high-efficiency metal product spraying equipment to solve existing technical problems.

[0006] The present invention adopts the following technical solution: a high-efficiency metal product spraying equipment, including a frame, a PLC controller on one side of the frame, a mesh belt conveyor on one side above the frame, a mounting frame above the mesh belt conveyor, a Z-axis transmission assembly on the mounting frame, a Y-axis transmission assembly connected to the moving end of the Z-axis transmission assembly, a high-pressure spray gun on the moving end of the Y-axis transmission assembly, a spraying mechanism on one side above the mounting frame, and the discharge end of the spraying mechanism connected to the high-pressure spray gun via a pipe. An intermittent feeding assembly is provided on the other side above. The intermittent feeding assembly includes a cylinder. The fixed end of the cylinder is hinged to the frame, and the output end of the cylinder is hinged to a connecting seat. A V-shaped crank is provided on the connecting seat. One end of the V-shaped crank is hinged to the connecting seat, and a shaft seat is hinged to the middle of the V-shaped crank. A first baffle plate is hinged above the connecting seat, and a second baffle plate is symmetrically provided on one side of the first baffle plate. The intermittent feeding assembly is used to control the intermittent conveying of metal products on the mesh belt conveyor. A drying assembly is provided at the unloading end of the mesh belt conveyor.

[0007] Furthermore, the Z-axis transmission assembly includes a reciprocating lead screw and a servo motor. The servo motor is located on one outer wall of the mounting bracket. The output end of the servo motor is connected to one end of the reciprocating lead screw, and the other end of the reciprocating lead screw is rotatably mounted on the mounting bracket. Guide rods are provided at both the upper and lower ends of the reciprocating lead screw. Slides are provided on the reciprocating lead screw and the guide rods. The slides have three holes. The inner wall of the middle hole is provided with an internal thread that mates with the thread on the outer wall of the reciprocating lead screw. The two side holes are slidably engaged with the guide rods. A mounting plate is provided on the side wall of the slides, and the mounting plate is connected to the Y-axis transmission assembly.

[0008] Furthermore, the Y-axis transmission assembly includes a hydraulic rod, the output end of which is connected to a slide plate. A slide bar slides through the slide plate and is located on a mounting plate. A high-pressure spray gun is provided on the side wall of the slide plate.

[0009] Furthermore, the spraying mechanism includes a fixed frame and a material box. The fixed frame is installed on the machine frame, and the material box is located on the fixed frame. A hydraulic cylinder is provided on the top surface of the fixed frame, and a piston is provided inside the material box. The top surface of the piston is connected to the output end of the hydraulic cylinder.

[0010] Furthermore, an inlet pipe extends through one side of the lower part of the material box, and an outlet pipe extends through the bottom of the material box. The outlet end of the outlet pipe is connected to a coil, which is wound around a support frame. The support frame is installed on the side wall of the mounting frame.

[0011] Furthermore, both the inlet pipe and the outlet pipe are equipped with valves. The valve on the inlet pipe is a one-way valve, and the valve on the outlet pipe is an electrically controlled ball valve. The electrically controlled ball valve is electrically connected to the PLC controller.

[0012] Furthermore, the first baffle plate and the second baffle plate are symmetrically arranged at the front and rear ends above the mesh belt conveyor. A crank rod is hinged to the bottom surface of the second baffle plate. A rotating shaft is hinged to the bottom of the crank rod and the bottom of the other end of the V-shaped crank. A connecting rod is hinged between the two rotating shafts.

[0013] Furthermore, the drying assembly includes a drying chamber, a hot air blower is provided on the outer side of the drying chamber, a hot air plate is provided on the top surface inside the drying chamber, and a plurality of evenly distributed hot air holes are opened on the bottom surface of the hot air plate. The air inlet end of the hot air plate is connected to the air outlet end of the hot air blower through a hot air pipe, and the hot air pipe is connected to the plurality of hot air holes.

[0014] Furthermore, the PLC controller is electrically connected to the servo motor, hydraulic rod, hydraulic cylinder, air cylinder, and hot air blower, respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, the intermittent feeding component of this invention uses a cylinder to drive a V-shaped crank and connecting rod transmission mechanism to achieve synchronous opening and closing of baffle plate one and baffle plate two, accurately controlling the conveying rhythm of metal products on the mesh belt conveyor. Intermittent feeding can accurately control the spacing of metal products and avoid uneven coating areas caused by continuous conveying. Secondly, the drying component of this invention adopts a combination structure of hot air blower and hot air plate. The hot air holes are evenly distributed to achieve rapid drying and curing of the surface of metal products. The hot air pipe connection design between the hot air plate and the hot air blower can ensure uniform hot air coverage, thus achieving efficient, uniform and energy-saving drying and curing effect after metal product spraying. In summary, this invention achieves full automation of the entire process from conveying, spraying, feeding to drying by centrally controlling the servo motor, hydraulic rod, hydraulic cylinder, air cylinder and hot air blower through a PLC controller, reducing manual intervention and effectively improving high-efficiency operation. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is the overall front perspective view of the present invention; Figure 2 This is a rear-view perspective view of the entire invention; Figure 3 This is a front view diagram of the overall structure in this invention; Figure 4 This is a perspective view of the Z-axis transmission assembly in this invention; Figure 5 This is a perspective view of the Y-axis transmission assembly in this invention; Figure 6 This is a perspective view of the spraying mechanism in this invention; Figure 7 This is a perspective view of the intermittent feeding component in this invention; Figure 8 This is a bottom perspective view of baffle plate one and baffle plate two in this invention; Figure 9 This is a perspective view of the V-shaped crank and crankshaft in this invention; Figure 10 This is a perspective view of the drying component in this invention.

[0018] Figure label: 1. Frame; 2. PLC controller; 3. Mesh belt conveyor; 4. Mounting bracket; 5. Z-axis transmission assembly; 501. Reciprocating screw; 502. Servo motor; 503. Guide rod; 504. Slide block; 505. Mounting plate; 6. Y-axis transmission assembly; 601. Hydraulic rod; 602. Slide plate; 603. Slide bar; 7. High-pressure spray gun; 8. Spraying mechanism; 801. Fixing frame; 802. Material box; 803. Hydraulic cylinder; 804. Piston; 8 05. Liquid inlet pipe; 806. Liquid outlet pipe; 807. Coil; 808. Support frame; 9. Intermittent feeding assembly; 901. Cylinder; 902. Connecting seat; 903. V-shaped crank; 904. Shaft seat; 905. Baffle plate one; 906. Baffle plate two; 907. Crank rod; 908. Rotating shaft; 909. Connecting rod; 10. Drying assembly; 1001. Drying box; 1002. Hot air blower; 1003. Hot air plate; 1004. Hot air hole. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following is combined Figures 1 to 10 As shown, this embodiment of the invention provides a high-efficiency metal product spraying equipment. The high-efficiency metal product spraying equipment includes a frame 1, a PLC controller 2 on one side of the frame 1, a mesh belt conveyor 3 on one side above the frame 1, a mounting frame 4 above the mesh belt conveyor 3, a Z-axis transmission assembly 5 on the mounting frame 4, a Y-axis transmission assembly 6 connected to the moving end of the Z-axis transmission assembly 5, a high-pressure spray gun 7 on the moving end of the Y-axis transmission assembly 6, a spraying mechanism 8 on one side above the mounting frame 4, the discharge end of the spraying mechanism 8 being connected to the high-pressure spray gun 7 via a pipe, and an intermittent feeding assembly 9 on the other side above the mounting frame 4. The intermittent feeding assembly 9 is used to control the intermittent conveying of metal products on the mesh belt conveyor 3. A drying assembly 10 is provided at the discharge end of the mesh belt conveyor 3. The PLC controller 2 is electrically connected to a servo motor 502, a hydraulic rod 601, a hydraulic cylinder 803, a pneumatic cylinder 901, and a hot air blower 1002.

[0025] In this embodiment, the spraying mechanism 8 and the high-pressure spray gun 7 achieve precise material feeding and stable spraying, the Z-axis and Y-axis transmission components 5 and 6 achieve three-dimensional high-precision positioning, the intermittent feeding component 9 controls the conveying cycle, the drying component 10 ensures uniform curing of the coating, and the PLC controller 2 achieves intelligent integration of the entire process.

[0026] Z-axis transmission assembly 5 includes a reciprocating lead screw 501 and a servo motor 502. The servo motor 502 is located on one side of the outer wall of the mounting bracket 4. The output end of the servo motor 502 is connected to one end of the reciprocating lead screw 501. The other end of the reciprocating lead screw 501 is rotatably mounted on the mounting bracket 4. Guide rods 503 are provided at both the upper and lower ends of the reciprocating lead screw 501. Slide seats 504 are provided on the reciprocating lead screw 501 and the guide rods 503. Three holes are provided on the slide seat 504. The inner wall of the middle hole is provided with an internal thread that mates with the thread on the outer wall of the reciprocating lead screw 501. The two side holes are slidably engaged with the guide rods 503. A mounting plate 505 is provided on the side wall of the slide seat 504. The mounting plate 505 is connected to the Y-axis transmission assembly 6. The Y-axis transmission assembly 6 includes a hydraulic rod 601. The output end of the hydraulic rod 601 is connected to a slide plate 602. A slide rod 603 slides through the slide plate 602 and is located on the mounting plate 505. A high-pressure spray gun 7 is provided on the side wall of the slide plate 602.

[0027] In this embodiment, the Z-axis transmission assembly 5 realizes the vertical reciprocating motion of the high-pressure spray gun 7, and the Y-axis transmission assembly 6 realizes the horizontal fine adjustment. Together with the X-axis conveying of the mesh belt conveyor 3, a three-dimensional spray coating coverage is achieved on the surface of the metal product.

[0028] The spraying mechanism 8 includes a fixed frame 801 and a material box 802. The fixed frame 801 is installed on the frame 1, and the material box 802 is located on the fixed frame 801. A hydraulic cylinder 803 is installed on the top surface of the fixed frame 801. A piston 804 is installed inside the material box 802. The top surface of the piston 804 is connected to the output end of the hydraulic cylinder 803. An inlet pipe 805 passes through one side of the lower part of the material box 802, and an outlet pipe 806 passes through the bottom end of the material box 802. A coil 807 is connected to the outlet end of the outlet pipe 806. The coil 807 is wound around a support frame 808. The support frame 808 is installed on the side wall of the mounting frame 4. Valves are installed on both the inlet pipe 805 and the outlet pipe 806. The valve on the inlet pipe 805 is a one-way valve, and the valve on the outlet pipe 806 is an electrically controlled ball valve. The electrically controlled ball valve is electrically connected to the PLC controller 2.

[0029] In this embodiment, the hydraulic cylinder 803 drives the piston 804 to squeeze the paint in the material box 802. The opening degree of the electrically controlled ball valve is adjusted to achieve precise control of the liquid output, avoiding paint waste and uneven spraying. The one-way valve prevents paint backflow, ensuring unidirectional material supply through the liquid inlet pipe 805 and maintaining stable pressure in the material box 802. The coil 807 buffers the paint pressure fluctuation through a spiral winding structure, ensuring stable spraying pressure of the high-pressure spray gun 7 and improving coating uniformity.

[0030] The intermittent feeding assembly 9 includes a cylinder 901. The fixed end of the cylinder 901 is hinged to the frame 1. The output end of the cylinder 901 is hinged to a connecting seat 902. A V-shaped crank 903 is provided on the connecting seat 902. One end of the V-shaped crank 903 is hinged to the connecting seat 902. A shaft seat 904 is hinged to the middle of the V-shaped crank 903. A first baffle plate 905 is hinged above the connecting seat 902. A second baffle plate 906 is symmetrically arranged on one side of the first baffle plate 905. The first baffle plate 905 and the second baffle plate 906 are symmetrically arranged at the front and rear ends above the mesh belt conveyor 3. A crank rod 907 is hinged to the bottom surface of the second baffle plate 906. A rotating shaft 908 is hinged to the bottom of the crank rod 907 and the bottom of the other end of the V-shaped crank 903. A connecting rod 909 is hinged between the two rotating shafts 908.

[0031] In this embodiment, the cylinder 901 extends and retracts to drive the V-shaped crank 903 to swing. Through the linkage 909 and the crank 907, the first baffle 905 and the second baffle 906 open and close synchronously, controlling the intermittent conveying of metal products on the mesh belt conveyor 3. The PLC controller 2 adjusts the operating frequency of the cylinder 901 according to the spraying cycle to ensure that the dwell time of the metal products in the spraying area matches the moving cycle of the high-pressure spray gun 7, avoiding missed spraying or repeated spraying.

[0032] The drying assembly 10 includes a drying chamber 1001. A hot air blower 1002 is provided on one side of the outside of the drying chamber 1001. A hot air plate 1003 is provided on the top surface inside the drying chamber 1001. A plurality of hot air holes 1004 are evenly distributed in an array on the bottom surface of the hot air plate 1003. The air inlet end of the hot air plate 1003 is connected to the air outlet end of the hot air blower 1002 through a hot air pipe, and the hot air pipe is connected to the plurality of hot air holes 1004.

[0033] In this embodiment, multiple hot air holes 1004 evenly distributed on the bottom surface of the hot air plate 1003 disperse the hot air output by the hot air blower 1002 into multiple fine streams, ensuring that the hot air distribution in the drying oven 1001 is uniform, avoiding local overheating or excessive temperature gradient, and improving the drying consistency of the coating on the surface of metal products.

[0034] Working principle: First, the PLC controller 2 is started, the mesh belt conveyor 3 starts running, and the one-way valve of the inlet pipe 805 of the spraying mechanism 8 is opened to inject paint into the material box 802. The electric ball valve of the outlet pipe 806 is closed. The metal product to be sprayed is placed at the starting end of the mesh belt conveyor 3 to ensure that the product position is evenly distributed. The metal product begins to be conveyed along the X-axis. According to the preset spraying cycle, the PLC controller 2 controls the extension and retraction of the cylinder 901. The extension and retraction of the cylinder 901 drives the V-shaped crank 903 to swing. Through the linkage of the connecting rod 909 and the crank rod 907, the first baffle 905 and the second baffle 906 open and close synchronously. When the first baffle 905 and the second baffle 906 are open, the metal product passes through; when the first baffle 905 and the second baffle 906 are closed, the metal product stays in the spraying area, waiting to be sprayed. Then, PLC controller 2 controls servo motor 502 to drive reciprocating screw 501 to rotate, slide 504 moves up and down along guide rod 503, driving high-pressure spray gun 7 to be positioned vertically. PLC controller 2 controls hydraulic rod 601 to extend and retract, driving slide plate 602 to move horizontally along slide rod 603, realizing horizontal fine adjustment of high-pressure spray gun 7. PLC controller 2 opens the electric ball valve of liquid outlet pipe 806 of spraying mechanism 8, hydraulic cylinder 803 drives piston 804 to squeeze paint in material box 802. After being buffered by liquid outlet pipe 806 and coil 807, paint enters high-pressure spray gun 7 to achieve stable spraying. High-pressure spray gun 7 performs three-dimensional coverage spraying on the surface of metal products under the linkage of Z-axis and Y-axis. After the current metal product is coated, the PLC controller 2 controls the baffle plate 905 and baffle plate 906 of the intermittent feeding assembly 9 to open, and the metal product continues to be conveyed along the mesh belt conveyor 3. At the same time, the next group of metal products enters the coating area and repeats the above coating steps. The coated metal products enter the drying chamber 1001 of the drying assembly 10 along with the mesh belt conveyor 3. The hot air output by the hot air blower 1002 enters the hot air plate 1003 through the hot air pipe and is blown out from the evenly distributed hot air holes 1004 to form a uniform hot air field. The coating on the surface of the metal product is cured under the action of uniform hot air in the drying chamber 1001. The dried metal products are output from the unloading end of the mesh belt conveyor 3.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency metal product spraying equipment, comprising a frame (1), characterized in that: A PLC controller (2) is provided on one side of the frame (1). A mesh belt conveyor (3) is provided on one side above the frame (1). A mounting frame (4) is provided above the mesh belt conveyor (3). A Z-axis transmission assembly (5) is provided on the mounting frame (4). A Y-axis transmission assembly (6) is connected to the moving end of the Z-axis transmission assembly (5). A high-pressure spray gun (7) is provided on the moving end of the Y-axis transmission assembly (6). A spraying mechanism (8) is provided on one side above the mounting frame (4). The discharge end of the spraying mechanism (8) is connected to the high-pressure spray gun (7) through a pipe. An intermittent feeding assembly (9) is provided on the other side above the mounting frame (4). The intermittent feeding assembly (9) includes a cylinder (901). The fixed end of the cylinder (901) is hinged to the frame (1), and the output end of the cylinder (901) is hinged to the connecting seat (902). A V-shaped crank (903) is provided on the connecting seat (902). One end of the V-shaped crank (903) is hinged to the connecting seat (902). A shaft seat (904) is hinged to the middle of the V-shaped crank (903). A baffle plate (905) is hinged above the connecting seat (902). A baffle plate (906) is symmetrically provided on one side of the baffle plate (905). The intermittent feeding assembly (9) is used to control the intermittent conveying of metal products on the mesh belt conveyor (3). A drying assembly (10) is provided at the discharge end of the mesh belt conveyor (3).

2. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The Z-axis transmission assembly (5) includes a reciprocating screw (501) and a servo motor (502). The servo motor (502) is located on one side of the outer wall of the mounting bracket (4). The output end of the servo motor (502) is connected to one end of the reciprocating screw (501). The other end of the reciprocating screw (501) is rotatably mounted on the mounting bracket (4). Guide rods (503) are provided at both the upper and lower ends of the reciprocating screw (501). Slide seats (504) are provided on the reciprocating screw (501) and the guide rods (503). Three holes are provided on the slide seats (504). The inner wall of the middle hole is provided with an internal thread that is threaded to the outer wall of the reciprocating screw (501). The two side holes are slidably engaged with the guide rods (503). A mounting plate (505) is provided on the side wall of the slide seats (504). The mounting plate (505) is connected to the Y-axis transmission assembly (6).

3. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The Y-axis transmission assembly (6) includes a hydraulic rod (601), the output end of which is connected to a slide plate (602). A slide rod (603) slides through the slide plate (602) and is located on a mounting plate (505). A high-pressure spray gun (7) is provided on the side wall of the slide plate (602).

4. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The spraying mechanism (8) includes a fixed frame (801) and a material box (802). The fixed frame (801) is installed on the frame (1), and the material box (802) is located on the fixed frame (801). A hydraulic cylinder (803) is provided on the top surface of the fixed frame (801), and a piston (804) is provided inside the material box (802). The top surface of the piston (804) is connected to the output end of the hydraulic cylinder (803).

5. The high-efficiency metal product spraying equipment according to claim 4, characterized in that: A liquid inlet pipe (805) runs through one side of the lower part of the material box (802), and a liquid outlet pipe (806) runs through the bottom end of the material box (802). The liquid outlet end of the liquid outlet pipe (806) is connected to a coil (807). The coil (807) is wound around the support frame (808), and the support frame (808) is installed on the side wall of the mounting frame (4).

6. The high-efficiency metal product spraying equipment according to claim 5, characterized in that: Both the inlet pipe (805) and the outlet pipe (806) are equipped with valves. The valve on the inlet pipe (805) is a one-way valve, and the valve on the outlet pipe (806) is an electrically controlled ball valve. The electrically controlled ball valve is electrically connected to the PLC controller (2).

7. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The first baffle plate (905) and the second baffle plate (906) are symmetrically arranged at the front and rear ends above the mesh belt conveyor (3). The bottom surface of the second baffle plate (906) is hinged with a crank rod (907). The bottom of the crank rod (907) and the bottom of the other end of the V-shaped crank (903) are both hinged with a rotating shaft (908). A connecting rod (909) is hinged between the two rotating shafts (908).

8. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The drying assembly (10) includes a drying chamber (1001), a hot air blower (1002) is provided on the outer side of the drying chamber (1001), a hot air plate (1003) is provided on the top surface inside the drying chamber (1001), and a plurality of uniformly arrayed hot air holes (1004) are opened on the bottom surface of the hot air plate (1003). The air inlet end of the hot air plate (1003) is connected to the air outlet end of the hot air blower (1002) through a hot air pipe, and the hot air pipe is connected to the plurality of hot air holes (1004).

9. The high-efficiency metal product spraying equipment according to claim 1, characterized in that: The PLC controller (2) is electrically connected to the servo motor (502), hydraulic rod (601), hydraulic cylinder (803), air cylinder (901) and hot air blower (1002).

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