Automatic plastic spraying equipment based on sheet metal parts

Abstract

The invention provides automatic plastic spraying equipment based on sheet metal parts, and relates to the field of metal plate plastic spraying. The automatic plastic spraying equipment based on the sheet metal part comprises a shell and a plastic spraying machine body, and the plastic spraying machine body is arranged at the upper end of the shell. In the invention, the rack is driven by the electric push rod to mesh with the gear to drive the main pipeline and the nozzle to rotate, and complex structures such as cambered surfaces and grooves can be covered. For example, when an automobile metal plate wheel brow is sprayed, the spraying head can adjust the spraying angle to be perpendicular to a curved surface normal in real time, so that the thickness uniformity of a coating is improved; two groups of longitudinal moving mechanisms are matched with a movable cap to realize front-back range adjustment of the spraying head; two groups of symmetrical industrial cameras collect workpiece images in real time; a three-dimensional model is generated through an image processor in a controller; rotation and longitudinal movement of the nozzle are controlled in a linkage mode. When facing the right-angle edge of the L-shaped sheet metal part, the system firstly controls the nozzle to rotate and then moves forwards through the longitudinal moving mechanism, so that the edge spraying amount is increased, and the problem of edge spraying leakage of traditional equipment is solved.

Description

Technical Field

[0001] The invention relates to the field of sheet metal plastic spraying, and in particular to automatic plastic spraying equipment based on sheet metal parts. Background Art

[0002] Sheet metal refers to thin sheet metal products manufactured through processes such as stamping, cutting, bending, and welding. Its thickness typically ranges from 0.5mm to 6mm, combining lightweight construction with structural strength. Common materials include steel, aluminum, stainless steel, and copper, as well as titanium alloys and galvanized sheet metal. Different materials are suited to different applications. For example, aluminum alloy sheet metal, due to its corrosion resistance and lightweight properties, is widely used in aerospace and new energy vehicle battery housings. Stainless steel sheet metal, due to its corrosion resistance, is indispensable in medical devices and food processing. Through precision machining methods such as laser cutting and CNC bending, sheet metal can be formed into complex shapes, such as the streamlined curves of car hoods and the hollow heat dissipation structures of router casings. These shapes not only meet functional requirements but can also enhance their appearance and protective properties through surface treatments such as plastic spraying and electroplating. They have become a key component for achieving lightweight and precision manufacturing in modern industrial manufacturing.

[0003] Traditional spraying equipment mostly uses fixed nozzles, manual adjustment or simple automated control, which makes it difficult to meet the high-precision and high-consistency spraying requirements. Specifically, due to the fixed position of the nozzle, when encountering sheet metal parts with complex surface shapes and not relatively flat surfaces, it is difficult to flexibly adjust according to the actual surface morphology, resulting in uneven spraying during the spraying process. Some areas are sprayed too thickly, while others are sprayed too thinly, which seriously affects the spraying quality of sheet metal parts. At the same time, manual adjustment is not only inefficient, but also difficult to ensure the accuracy of adjustment. The operational differences between different operators will also lead to inconsistent spraying effects, which cannot meet the requirements of large-scale industrial production for spraying quality stability. Therefore, there is an urgent need for a new type of automatic spraying equipment that can solve the above problems to meet the high-precision and high-consistency spraying requirements. Summary of the Invention

[0004] 1. Technical problems solved In view of the deficiencies in the prior art, the present invention provides an automatic plastic spraying device based on sheet metal parts, which solves the problems in the background technology.

[0005] 2. Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: An automatic spraying device based on sheet metal parts includes a shell and a spraying machine body, the spraying machine body is arranged at the upper end of the shell, an industrial camera is arranged inside the shell, two groups of industrial cameras are arranged, and are symmetrically arranged inside the shell, a rotation mechanism is arranged at the lower end of the shell, and the illumination range of the two groups of industrial cameras covers the rotation mechanism, a longitudinal movement mechanism is arranged inside the shell, two groups of longitudinal movement mechanisms are arranged, and are symmetrically arranged inside the shell, the opposite surfaces of the two groups of longitudinal movement mechanisms are movably connected with movable caps, a spraying mechanism is arranged in the middle of the two groups of movable caps, the spraying mechanism includes a movable shell, the movable shell is fixedly connected in the middle of the two groups of movable caps, a main pipeline is arranged inside the movable shell, and the left and right sides of the main pipeline are connected A rotating rod is provided on both sides, and the main pipeline is rotatably connected to the inside of the movable shell through the rotating rod. A gear is provided on the surface of the rotating rod at the right end, and a rack is connected to the surface of the gear. An electric push rod is longitudinally movably connected to the upper surface of the inner part of the shell, and the lower end of the electric push rod is fixedly connected to the rack. A through hole is provided on the upper surface of the movable shell, and the rack is movably arranged inside the through hole. A connecting pipe is provided at the lower end of the main pipeline, and a nozzle is provided at the lower end of the connecting pipe. There are multiple groups of connecting pipes and nozzles, and they are evenly arranged at the lower end of the main pipeline. Solenoid valves are provided on the surfaces of the multiple groups of connecting pipes. A controller is provided on the front side of the spray molding machine body, and an image processor is provided inside the controller. The controller is electrically connected to the longitudinal moving mechanism, the electric push rod and the solenoid valve; This technical solution, driven by an electric actuator and meshing gears, drives the main pipe and nozzle rotation, enabling coverage of complex structures such as curved surfaces and grooves. For example, when spraying automotive fender flares, the nozzle can adjust the spray angle in real time to be perpendicular to the surface normal, improving coating thickness uniformity. Two sets of longitudinal motion mechanisms, combined with a retractable cap, enable front-to-back adjustment of the nozzle's range. Two symmetrical industrial cameras capture workpiece images in real time, generating a 3D model through the controller's internal image processor. This controls the nozzle's rotation and longitudinal motion in conjunction. When targeting the right-angled edges of L-shaped sheet metal parts, the system first controls the nozzle's rotation, then advances the longitudinal motion mechanism to increase the coating volume at the edges. This addresses the edge leaks often associated with conventional equipment and improves coating adhesion. The solenoid valves for each nozzle set are individually controlled by the controller, precisely adjusting the spray time and flow rate for concave and convex areas. When spraying wavy sheet metal parts, the solenoid valves remain open for a longer time in concave areas, reducing the time spent on convex areas. This improves paint utilization and prevents buildup or thinning of the coating.

[0006] Furthermore, a cylinder is provided at the lower end of the rotating mechanism, the cylinder is fixedly connected to the lower surface of the inner shell, and the cylinder is electrically connected to the controller; Through the above technical solution, the cylinder can automatically compensate for the height according to the thickness of the sheet metal, so that the nozzle maintains the optimal distance from the workpiece surface, avoiding the resetting of spray parameters due to differences in workpiece thickness. The cylinder is linked with the rotation mechanism. When processing box-type workpieces, the turntable can be raised to the optimal working height of the nozzle, and the rotation of the turntable can be used to improve the coverage of the dead corners of the inner wall.

[0007] Furthermore, the rotating mechanism includes a fixed base, the fixed base is fixedly connected to the upper end of the cylinder, a forward and reverse motor is fixedly connected inside the fixed base, the upper end of the output shaft of the forward and reverse motor is fixedly connected to a rotating shaft, a bearing is passed through the upper surface of the fixed base, the rotating shaft is passed through the bearing, a turntable is fixedly connected to the upper end of the rotating shaft, and the forward and reverse motor is electrically connected to the controller; Through the above technical solution, the forward and reverse motors drive the shaft to drive the turntable to rotate, and the bearing support ensures the rotation accuracy. It is suitable for all-round spraying of arc-shaped and annular sheet metal parts, solving the inefficiency problem of traditional equipment requiring manual flipping of workpieces.

[0008] Furthermore, a first slide rail is provided on the upper surface of the fixing seat, and a second slide rail is provided on the lower surface of the turntable. Balls are connected and rolled inside the first and second slide rails. There are multiple groups of balls, which are symmetrically arranged inside the first and second slide rails. Through the above technical solution, the second slide rail on the lower surface of the turntable forms a rolling fit with the ball in the first slide rail on the upper surface of the fixed seat, and the first slide rail, the second slide rail and the ball form a rolling pair, the rotational resistance torque is reduced, and the turntable rotates without jamming, ensuring that the spraying trajectory is uniform and the coating surface roughness is stable.

[0009] Furthermore, the lower end of the spray molding machine body is connected to a telescopic hose, the lower end of the telescopic hose passes through the movable shell and is connected to the main pipeline, and a sealing door is provided on the front side of the shell; Through the above technical solution, the telescopic hose can be extended and retracted as the plastic spraying mechanism moves longitudinally and rotates, avoiding the material blockage problem caused by traditional hard pipe connections, improving material transportation efficiency, and forming a closed spraying space after the sealing door is closed, preventing operators from contacting the plastic spraying material and improving safety.

[0010] Furthermore, the plurality of groups of solenoid valves are individually controlled by a controller; Through the above technical solution, each group of solenoid valves can independently control the spraying amount of a single nozzle. For example, when spraying wavy sheet metal parts, the opening time of the solenoid valve in the concave area is extended and the opening time of the solenoid valve in the convex area is reduced, thereby achieving precise control of the local coating thickness. It supports multiple modes such as "regional progressive spraying" and "edge enhancement spraying", and can be switched through the preset program of the controller to meet the personalized spraying needs of different sheet metal parts.

[0011] Furthermore, the nozzle is made of tungsten carbide alloy material, and the surface is treated with nano-ceramic coating; Through the above technical solution, the setting of the tungsten carbide alloy substrate ensures the purity of the coating and is suitable for spraying food-grade and medical-grade sheet metal parts.

[0012] Furthermore, the surface of the turntable is covered with a stainless steel anti-skid checkered plate; Through the above technical solution, the stainless steel anti-skid checkered plate can prevent the workpiece from sliding during the spraying process, and is particularly suitable for aluminum alloy sheet metal parts with smooth surfaces.

[0013] 3. Beneficial effects The present invention provides an automatic plastic spraying device based on sheet metal parts. It has the following beneficial effects: 1. This invention provides an automatic spraying system for sheet metal parts. An electric push rod drives a rack meshing with a gear, driving the main pipe and spray head to rotate. This system can cover complex structures such as curved surfaces and grooves. For example, when spraying automotive fender flares, the spray head can adjust the spray angle in real time to be perpendicular to the surface normal, improving coating thickness uniformity. Two sets of longitudinal motion mechanisms, combined with a removable cap, enable the nozzle's forward and backward range to be adjusted. Two symmetrical industrial cameras capture workpiece images in real time, generating a three-dimensional model using an image processor within the controller. This system then controls the nozzle's rotation and longitudinal motion in conjunction. When spraying the right-angled edges of L-shaped sheet metal parts, the system first controls the nozzle's rotation, then advances the longitudinal motion mechanism to increase the coating volume at the edges. This addresses the edge leakage problem of conventional equipment and improves coating adhesion at the edges. The solenoid valves of each set of spray heads are individually controlled by the controller, enabling precise adjustment of spray time and flow rate for concave and convex areas. When spraying wavy sheet metal parts, the solenoid valve's open time is extended in concave areas, while the open time is reduced in convex areas, improving paint utilization and preventing coating accumulation or thinning.

[0014] 2. The present invention provides an automatic spraying device based on sheet metal parts. The cylinder drives the rotating mechanism to rise and fall, and cooperates with the forward and reverse motors to drive the turntable to rotate, so as to realize all-round spraying of the workpiece. When processing box-type workpieces, the cylinder raises the turntable to the optimal height, and the turntable rotates to cover the dead corners of the inner wall, thereby improving the coating coverage rate of the dead corners and reducing manual re-spraying. At the same time, the first slide rail, the second slide rail and the ball form a rolling pair, which reduces the rotation resistance torque and the turntable rotates without jamming, ensuring a uniform spraying trajectory and stable coating surface roughness. The setting of the tungsten carbide alloy substrate ensures the purity of the coating. It is suitable for spraying food-grade and medical-grade sheet metal parts. The stainless steel anti-slip checkered plate can prevent the workpiece from sliding during the spraying process, and is especially suitable for aluminum alloy sheet metal parts with smooth surfaces. The telescopic hose can be extended and retracted as the spraying mechanism moves longitudinally and rotates, avoiding the material blockage problem caused by traditional hard pipe connections, improving material transportation efficiency, and forming a closed spraying space after the sealing door is closed to prevent operators from contacting the spraying material and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention in a frontal perspective cross-sectional view; Figure 2 It is a schematic structural diagram of a cross-section of the longitudinal moving mechanism of the present invention; Figure 3 It is a schematic structural diagram of the plastic spraying mechanism of the present invention in right side cross-section; Figure 4 This is a schematic diagram of the structure of the plastic spraying mechanism of the present invention, viewed from the front and enlarged; Figure 5 It is a schematic structural diagram of a cross-section of the rotating mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the present invention in a front view; Figure 7 It is a schematic diagram of the structure of the present invention in a top view and cross-section.

[0016] Among them, 1. Shell; 2. Spray-molding machine body; 3. Industrial camera; 4. Rotating mechanism; 401. Fixed seat; 402. Forward and reverse motor; 403. Rotating shaft; 404. Bearing; 405. First slide rail; 406. Second slide rail; 407. Ball; 408. Turntable; 5. Longitudinal moving mechanism; 6. Movable cap; 7. Spray-molding mechanism; 701. Movable shell; 702. Main pipeline; 703. Rotating rod; 704. Gear; 705. Rack; 706. Through hole; 707. Electric push rod; 708. Connecting pipe; 709. Solenoid valve; 710. Spray head; 8. Controller; 9. Telescopic hose; 10. Cylinder; 11. Sealing door. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, rather than all the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific implementation 1: like Figure 1 、 Figure 2 and Figure 3As shown, a specific embodiment of the present invention provides an automatic spraying device based on sheet metal parts, a shell 1 and a spraying machine body 2, the spraying machine body 2 is arranged at the upper end of the shell 1, an industrial camera 3 is arranged inside the shell 1, two groups of industrial cameras 3 are provided, and are symmetrically arranged inside the shell 1, a rotating mechanism 4 is provided at the lower end of the shell 1, the illumination range of the two groups of industrial cameras 3 covers the rotating mechanism 4, a longitudinal moving mechanism 5 is provided inside the shell 1, two groups of longitudinal moving mechanisms 5 are provided, and are symmetrically arranged inside the shell 1, the opposite surfaces of the two groups of longitudinal moving mechanisms 5 are movably connected with movable caps 6, a spraying mechanism 7 is arranged in the middle of the two groups of movable caps 6, the spraying mechanism 7 includes a movable shell 701, the movable shell 701 is fixedly connected in the middle of the two groups of movable caps 6, a main pipe 702 is provided inside the movable shell 701, and rotating rods 703 are provided on the left and right sides of the main pipe 702. The main pipe 702 is rotatably connected to the inside of the movable shell 701 through the rotating rod 703, and the right end rotating rod 70 3 is provided with a gear 704, and the gear 704 is connected to the rack 705. The upper surface of the inner part of the shell 1 is longitudinally connected to an electric push rod 707, and the lower end of the electric push rod 707 is fixedly connected to the rack 705. A through hole 706 is opened on the upper surface of the movable shell 701, and the rack 705 is movably arranged inside the through hole 706. A connecting pipe 708 is provided at the lower end of the main pipe 702, and a nozzle 710 is provided at the lower end of the connecting pipe 708. Both the connecting pipe 708 and the nozzle 710 are provided with Multiple groups of connecting pipes 708 are evenly spaced at the lower end of the main pipe 702. Solenoid valves 709 are installed on the surfaces of the multiple connecting pipes 708. A controller 8 is located on the front side of the spray machine body 2. The controller 8 houses an image processor. The controller 8 is electrically connected to the longitudinal motion mechanism 5, the electric push rod 707, and the solenoid valve 709. The electric push rod 707 drives the rack 705 to engage the gear 704, driving the main pipe 702 and the spray head 710 to rotate. This allows the spray head 710 to cover complex structures such as curved surfaces and grooves. For example, when spraying automotive sheet metal fenders, the spray head 710 can adjust the spray angle in real time to be perpendicular to the surface normal, improving the uniformity of the coating thickness. The two longitudinal motion mechanisms 5 cooperate with the movable cap 6 to adjust the front and rear range of the spray head 710. Two symmetrical industrial cameras 3 capture workpiece images in real time, generating a three-dimensional model through the image processor within the controller 8. This controls the rotation and longitudinal motion of the spray head 710 in a coordinated manner. When spraying the right-angled edges of L-shaped sheet metal parts, the system first controls the rotation of the nozzles 710, then advances the longitudinal motion mechanism 5 to increase the coating volume along the edges. This solves the problem of missed coatings at the edges of traditional equipment and improves coating adhesion. The solenoid valves 709 of each group of nozzles 710 are individually controlled by the controller 8, precisely adjusting the spraying time and flow rate for concave and convex areas. When spraying wavy sheet metal parts, the solenoid valves 709 are kept open for a longer period of time in concave areas, reducing the opening time in convex areas. This improves coating utilization and prevents coating accumulation or thinning.

[0019] like Figure 1 、 Figure 5 and Figure 7As shown, a cylinder 10 is provided at the lower end of the rotating mechanism 4, and the cylinder 10 is fixedly connected to the lower surface of the inner shell 1, and the cylinder 10 is electrically connected to the controller 8. The rotating mechanism 4 includes a fixed seat 401, and the fixed seat 401 is fixedly connected to the upper end of the cylinder 10. A forward and reverse motor 402 is fixedly connected to the fixed seat 401, and the upper end of the output shaft of the forward and reverse motor 402 is fixedly connected to the rotating shaft 403. A bearing 404 is passed through the upper surface of the fixed seat 401, and the rotating shaft 403 is passed through the inside of the bearing 404. A turntable 408 is fixedly connected to the upper end of the rotating shaft 403. The forward and reverse motor 402 and the controller 8 are electrically connected. A first slide rail 405 is provided on the upper surface of the fixed seat 401, and a second slide rail 406 is provided on the lower surface of the turntable 408. Balls 407 are rollingly connected inside the first slide rail 405 and the second slide rail 406. There are multiple groups of balls 407, and they are symmetrically arranged inside the first slide rail 405 and the second slide rail 406. The cylinder 10 can be based on The height is automatically compensated according to the thickness of the sheet metal, so that the nozzle 710 maintains an optimal distance from the workpiece surface, avoiding the resetting of the spraying parameters due to the difference in workpiece thickness. The cylinder 10 is linked with the rotating mechanism 4. When processing box-type workpieces, the turntable 408 can be raised to the optimal working height of the nozzle 710, and the coverage rate of the inner wall blind angle is improved with the rotation of the turntable 408. The forward and reverse motors 402 drive the rotating shaft 403 to drive the turntable 408 to rotate, and the bearing 404 supports to ensure the rotation accuracy. It is suitable for all-round spraying of arc-shaped and annular sheet metal parts, and solves the inefficiency problem of traditional equipment requiring manual flipping of workpieces. The second slide rail 406 on the lower surface of the turntable 408 forms a rolling fit with the ball 407 in the first slide rail 405 on the upper surface of the fixed seat 401. The first slide rail 405, the second slide rail 406 and the ball 407 form a rolling pair, the rotation resistance torque is reduced, and the turntable 408 rotates without jamming, ensuring a uniform spraying trajectory and stable coating surface roughness.

[0020] like Figure 1 、 Figure 4 and Figure 7As shown, the lower end of the spraying machine body 2 is connected with a telescopic hose 9, and the lower end of the telescopic hose 9 passes through the movable shell 701 and is connected with the main pipeline 702. A sealing door 11 is provided on the front side of the shell 1. Multiple groups of solenoid valves 709 are individually controlled by the controller 8. The nozzle 710 is made of tungsten carbide alloy material, and the surface is treated with nano-ceramic coating. The surface of the turntable 408 is covered with a stainless steel anti-skid checkered plate. The telescopic hose 9 can be extended and retracted with the longitudinal movement and rotation of the spraying mechanism 7, avoiding the material blockage problem caused by the traditional hard pipe connection, and improving the material transportation efficiency. After the sealing door 11 is closed, a closed spraying space is formed to prevent the operator from contacting the spraying material, and improve the material transportation efficiency. To improve safety, each set of solenoid valves 709 can independently control the spraying amount of a single nozzle 710. For example, when spraying wavy sheet metal parts, the opening time of the solenoid valve 709 in the concave area is prolonged and the convex area is reduced, thereby achieving precise control of the local coating thickness. It supports multiple modes such as "regional progressive spraying" and "edge enhancement spraying", which can be switched through the preset program of the controller 8 to meet the personalized spraying needs of different sheet metal parts. The setting of the tungsten carbide alloy substrate ensures the purity of the coating and is suitable for spraying food-grade and medical-grade sheet metal parts. The stainless steel anti-slip checkered plate can prevent the workpiece from sliding during the spraying process, and is especially suitable for aluminum alloy sheet metal parts with smooth surfaces.

[0021] Working Principle: Open the sealed door 11 on the front side of the housing 1, place the sheet metal part on the turntable 408, and close the sealed door 11. Controller 8 activates the cylinder 10, driving the rotating mechanism 4 to rise to the appropriate height. Simultaneously, the forward and reverse motors 402 drive the rotating shaft 403 to rotate, causing the turntable 408 to rotate. Two sets of symmetrically arranged industrial cameras 3 capture all-round images of the sheet metal part surface, covering the rotating mechanism 4. The industrial cameras 3 transmit the captured image information to the controller 8. The internal image processor analyzes the image to generate a three-dimensional model of the sheet metal part surface, calculating the shape and undulation of each area, as well as parameters such as the required spray amount and spray angle. Based on the analysis results, the controller 8 controls the two sets of longitudinal movement mechanisms 5 to move the spray mechanism 7 longitudinally through the movable cap 6, so that the spray head 710 maintains the optimal spraying distance with the sheet metal part surface at the upper end of the turntable 408. The controller 8 activates the electric push rod 707, whose lower end pushes the rack 705 up and down within the through hole 706 of the movable housing 701. The meshing transmission of rack 705 and gear 704 drives the rotating rod 703, causing the main pipe 702 to rotate around the rotating rod 703, thereby adjusting the spray angle of the nozzle 710. When the sheet metal surface has curved or uneven areas, the nozzle 710 can be rotated to an angle perpendicular to the spraying surface to ensure uniform adhesion of the sprayed plastic material. The spraying machine body 2 transports the sprayed plastic material to the main pipe 702 through the telescopic hose 9, and then distributes it to each nozzle 710 through the connecting pipe 708. Based on the results of the three-dimensional model calculations, controller 8 independently controls the solenoid valves 709 on the surfaces of each connecting pipe 708. For the flat areas of the sheet metal above turntable 408, the solenoid valves 709 corresponding to the nozzles 710 are opened with standard parameters to achieve uniform spraying. For recessed areas, the opening time of solenoid valves 709 is extended to increase the output of the sprayed plastic material. For raised areas, the opening time of solenoid valves 709 is shortened or the angle of the nozzles 710 is adjusted to reduce the amount of material sprayed and avoid coating accumulation. During the spraying process, controller 8 continuously controls the forward and reverse motors 402 to drive the turntable 408 to rotate slowly. The second slide rail 406 on the lower surface of the turntable 408 forms a rolling fit with the ball bearings 407 in the first slide rail 405 on the upper surface of the fixed base 401, ensuring smooth and smooth rotation. Simultaneously, cylinder 10 adjusts the height of rotating mechanism 4 in real time based on the height of the spraying area, ensuring that all areas of the sheet metal part above turntable 408 are always within the optimal spraying range of spray head 710, ensuring uniform and all-round coverage. When controller 8 confirms that all areas of the sheet metal part have been sprayed, cylinder 10 controls rotating mechanism 4 to descend to its initial position, and forward and reverse motor 402 stops rotating. Opening sealed door 11, the operator can remove the sprayed sheet metal part from the top of turntable 408, completing a single cycle.

[0022] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic plastic spraying device based on sheet metal parts, comprising a housing (1) and a plastic spraying machine body (2), characterized in that: The spray molding machine body (2) is arranged at the upper end of the shell (1), and an industrial camera (3) is arranged inside the shell (1). There are two groups of industrial cameras (3) and they are symmetrically arranged inside the shell (1). A rotating mechanism (4) is arranged at the lower end of the shell (1). The illumination range of the two groups of industrial cameras (3) covers the rotating mechanism (4). A longitudinal moving mechanism (5) is arranged inside the shell (1). There are two groups of longitudinal moving mechanisms (5) and they are symmetrically arranged inside the shell (1). The opposite surfaces of the longitudinal moving mechanism (5) are movably connected to movable caps (6), and a spraying mechanism (7) is provided between the two groups of movable caps (6). The spraying mechanism (7) includes a movable shell (701), and the movable shell (701) is fixedly connected between the two groups of movable caps (6). A main pipe (702) is provided inside the movable shell (701), and a rotating rod (703) is provided on both sides of the main pipe (702). The main pipe (702) is rotatably connected to the movable shell (701) through the rotating rod (703). 701), a gear (704) is provided on the surface of the rotating rod (703) at the right end, and a rack (705) is connected to the surface of the gear (704). An electric push rod (707) is longitudinally movably connected to the upper surface of the inner part of the housing (1), and the lower end of the electric push rod (707) is fixedly connected to the rack (705). A through hole (706) is provided on the upper surface of the movable housing (701), and the rack (705) is movably provided inside the through hole (706). A connecting pipe (70 8), a nozzle (710) is provided at the lower end of the connecting pipe (708), and the connecting pipe (708) and the nozzle (710) are provided in multiple groups and are evenly arranged at the lower end of the main pipe (702), and electromagnetic valves (709) are provided on the surface of the multiple groups of the connecting pipes (708), and a controller (8) is provided on the front side of the spray molding machine body (2), and an image processor is provided inside the controller (8), and the controller (8) is electrically connected to the longitudinal moving mechanism (5), the electric push rod (707) and the electromagnetic valve (709).

2. The automatic plastic spraying equipment based on sheet metal parts according to claim 1, characterized in that: A cylinder (10) is provided at the lower end of the rotating mechanism (4), and the cylinder (10) is fixedly connected to the lower surface of the inner portion of the housing (1). The cylinder (10) is electrically connected to the controller (8).

3. The automatic plastic spraying equipment based on sheet metal parts according to claim 1 is characterized in that: The rotating mechanism (4) includes a fixed seat (401), the fixed seat (401) is fixedly connected to the upper end of the cylinder (10), a forward and reverse motor (402) is fixedly connected inside the fixed seat (401), a rotating shaft (403) is fixedly connected to the upper end of the output shaft of the forward and reverse motor (402), a bearing (404) is passed through the upper surface of the fixed seat (401), the rotating shaft (403) is passed through the inside of the bearing (404), a rotating disk (408) is fixedly connected to the upper end of the rotating shaft (403), and the forward and reverse motor (402) is electrically connected to the controller (8).

4. The automatic plastic spraying equipment based on sheet metal parts according to claim 3 is characterized in that: A first slide rail (405) is provided on the upper surface of the fixed seat (401), and a second slide rail (406) is provided on the lower surface of the turntable (408). Balls (407) are connected in a rolling manner inside the first slide rail (405) and the second slide rail (406). There are multiple groups of balls (407) that are symmetrically arranged inside the first slide rail (405) and the second slide rail (406).

5. The automatic plastic spraying equipment based on sheet metal parts according to claim 1, characterized in that: The lower end of the spray molding machine body (2) is connected to a telescopic hose (9), and the lower end of the telescopic hose (9) passes through the movable shell (701) and is connected to the main pipeline (702). A sealing door (11) is provided on the front side of the shell (1).

6. The automatic plastic spraying equipment based on sheet metal parts according to claim 1, characterized in that: The plurality of solenoid valves (709) are individually controlled by the controller (8).

7. The automatic plastic spraying equipment based on sheet metal parts according to claim 1, characterized in that: The nozzle (710) is made of tungsten carbide alloy material, and its surface is treated with nano-ceramic coating.

8. The automatic plastic spraying equipment based on sheet metal parts according to claim 3, characterized in that: The surface of the turntable (408) is covered with a stainless steel anti-skid patterned plate.

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