An automatic profile line circulating moving type flow coating device

Abstract

The utility model relates to automatic modeling line circulating mobile formula flow coating technical field, concretely to a kind of automatic modeling line circulating mobile formula flow coating device, including rack, transfer assembly, automatic flow coating component, turnover recovery component and coating circulation component, automatic flow coating component is replaced manual operation by symmetrical distribution coating spray head and feed pipe, sand mould automatic uniform coating is realized, transfer assembly drives sand mould to circulate along rack, cooperate multiple automatic flow coating components can complete multiple flow coating, without manual transfer, adapt to automatic modeling line batch production demand, turnover recovery component passes through angle adjusting part and limiting structure, drawer type filter screen of coating circulation component filters impurity in coating, circulating pump supplies clean coating to spray head again, realizes coating closed loop circulation, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of automatic molding line circulating moving flow coating technology, specifically an automatic molding line circulating moving flow coating device. Background Technology

[0002] As is well known, in the production of sand molds on an automated molding line, the flow coating process is a key step in ensuring the surface quality of the sand mold. The coating needs to be evenly applied to the surface of the sand mold to improve the precision of the casting.

[0003] Traditional flow coating stations suffer from low efficiency and uneven coating due to manual flow coating. In existing processes, after the sand mold is transferred to the flow coating station, manual coating operations are required using hand tools. Not only does each flow coating take up to 30 seconds per piece, making it difficult to adapt to the batch production rhythm of automated molding lines, but the uneven thickness of the coating on the sand mold surface is also caused by differences in the force and angle of manual operation. Local areas are prone to missed coating or accumulation, affecting the quality of subsequent castings. Even if some flow coating stations use a single flow coating device, they still rely on manual assistance for positioning and operation, which cannot fundamentally solve the problems of efficiency and uniformity, thus restricting the improvement of the production efficiency of automated molding lines. Utility Model Content

[0004] To overcome the problems of low efficiency and uneven coating in existing flow coating devices, this invention provides an automatic molding line circulating moving flow coating device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic molding line circulating moving flow coating device, comprising:

[0006] The frame is set along the conveying direction of the automatic molding line and serves as the base for the installation of the equipment.

[0007] A transfer assembly, which is mounted on the frame, is used to move the sand mold along the length of the frame;

[0008] An automatic coating assembly, located on one side of the frame, is used to automatically coat sand molds in place of manual labor. It includes a paint nozzle and a feed pipe. The paint nozzle is oriented toward the sand mold's movement path, and one end of the feed pipe is connected to a paint source, while the other end is connected to the paint nozzle.

[0009] A flipping and recycling assembly, connected to a transfer assembly, is used to flip the sand mold and recover excess paint; and

[0010] A paint recycling component is located below the flipping and recycling component and is used to recycle and reuse paint.

[0011] Preferably, the transfer assembly includes a movable frame, a clamping member, and a transfer drive member. The movable frame is slidably engaged with the frame, and the sliding direction is consistent with the length direction of the frame. The clamping member is fixed to the top surface of the movable frame and is used to clamp the sand mold. The transfer drive member drives the movable frame to move along the frame.

[0012] Furthermore, the transfer drive component is a chain drive mechanism, including a drive sprocket, a driven sprocket, and a chain. The drive sprocket and the driven sprocket are respectively located at both ends of the frame. The chain is sleeved on the outside of the sprocket and fixed to the bottom of the moving frame. The length direction of the chain is parallel to the length direction of the frame.

[0013] Furthermore, the automatic coating assembly is provided with at least two sets of spray nozzles spaced apart along the length of the frame. Each set of spray nozzles is symmetrically distributed along the width of the frame, with the nozzle axis forming an angle with the sand mold surface. The feed pipe is equipped with a flow regulating valve, and the axis of the regulating valve is perpendicular to the axis of the feed pipe.

[0014] In a further embodiment, the flipping and recycling assembly includes a flipping frame and an angle adjustment component. One end of the flipping frame is hinged to the moving frame of the transfer assembly, and the axis of the hinge is parallel to the width direction of the frame. The clamping component of the transfer assembly is fixed to the top surface of the flipping frame. One end of the angle adjustment component is connected to the moving frame, and the other end is connected to the flipping frame, driving the flipping frame to rotate around the hinge axis.

[0015] Based on the aforementioned scheme, the angle adjustment component is a hydraulic rod, with both ends of the hydraulic rod hinged to the moving frame and the tilting frame respectively. The axes of the two hinge shafts are parallel to the width direction of the frame. A limit block is provided on the side of the tilting frame, and a limit stop is provided at the corresponding position of the moving frame. The limit block and the limit stop cooperate to limit the maximum tilt angle of the tilting frame.

[0016] Furthermore, based on the aforementioned scheme, the coating circulation component includes a recovery tank, a filter element, and a circulation pump. The recovery tank is located directly below the inverted recovery component, the filter element is located inside the recovery tank, the input end of the circulation pump is connected to the bottom of the recovery tank, and the output end is connected to the feed pipe of the automatic flow coating component through a pipeline.

[0017] Furthermore, based on the aforementioned scheme, the filter element is a drawer-type filter screen, which is horizontally positioned in the middle of the recovery tank and slides in conjunction with the inner wall of the recovery tank. The bottom of the recovery tank has an inclined structure, with the lower end connected to the input end of the circulation pump, and the inclination direction is consistent with the length direction of the frame. Beneficial effects

[0018] This automated molding line features a circulating mobile coating system. The automated coating components, through symmetrically distributed paint nozzles and supply pipes, replace manual operation, achieving automatic and uniform coating of sand molds. The single coating time is reduced to 15 seconds per mold, increasing efficiency by 50%, and coating thickness deviation is controlled within ±0.1mm. The transfer component drives the sand mold to circulate along the frame. Multiple automated coating components can complete multiple coating cycles without manual transfer, meeting the batch production needs of automated molding lines. The flipping and recovery component, through angle adjustment and limiting structures, ensures precise flipping of the sand mold between 110° and 180°, achieving an excess paint recovery rate of over 95%, reducing resource waste. The paint circulation component's drawer-type filter recovers impurities from the paint, and the circulation pump resupply the clean paint to the nozzles, achieving a closed-loop paint circulation, reducing production costs. The purely mechanical structure eliminates the risk of electrical failure and is suitable for dusty workshop environments. The clamping components and transfer components are compatible with sand molds of different sizes, enhancing the device's versatility. Attached Figure Description

[0019] Figure 1 This is a side view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the coating circulation component of this utility model;

[0021] Figure 3 This is a schematic diagram of the automatic flow coating assembly of this utility model;

[0022] Figure 4 This utility model Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the transfer drive component of this utility model.

[0024] In the diagram: 1. Frame; 2. Transfer assembly; 3. Automatic flow coating assembly; 4. Paint nozzle; 5. Feed pipe; 6. Tilting and recovery assembly; 7. Paint circulation assembly; 8. Moving frame; 9. Clamping component; 10. Transfer drive component; 11. Drive sprocket; 12. Driven sprocket; 13. Chain; 14. Flow regulating valve; 15. Tilting frame; 16. Angle adjustment component; 17. Limit block; 18. Limit stop; 19. Recovery tank; 20. Filter; 21. Circulation pump. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figures 1-5 An automated molding line circulating mobile flow coating device, through the collaborative design of "automatic transfer circulation + multiple sets of precise flow coating + flipping and recycling + paint closed loop", realizes the automation, high efficiency and resource utilization of sand mold flow coating process. The core solution is as follows: the frame 1 provides the installation foundation along the direction of the automated molding line, the transfer component 2 drives the sand mold to circulate along the frame 1 without manual transfer, the automatic flow coating component 3 achieves uniform coating of the sand mold surface through symmetrically distributed nozzles, replacing manual operation, the flipping and recycling component 6 flips the sand mold to recover excess paint and reduce waste, and the paint circulation component 7 filters and recovers paint and resupply it to form a closed loop utilization. The components work closely together through sliding fit, hinge drive, pipeline connection and other means, which solves the problems of low efficiency and uneven coating of traditional manual flow coating devices. It is suitable for batch flow coating operations of sand molds in automated molding lines, especially suitable for casting sand mold production in the fields of automobile and machinery manufacturing.

[0027] First, refer to Figure 1 In this embodiment, the frame 1 is the overall load-bearing structure of the device, which is welded from Q235 steel. It is set horizontally along the conveying direction of the automatic molding line, and its length is adapted to the requirements of the molding line station. Parallel guide rails (T-slot structure) are welded to the top of the frame 1 along the length direction. The surface of the guide rails is ground to ensure that the moving frame 8 of the transfer component 2 slides smoothly. The four corners of the bottom are connected to leveling pads by threads. Rotating the pads can adjust the level of the frame 1 and avoid the sand mold tilting due to uneven ground.

[0028] The frame 1 has a reserved installation space in the middle for fixing the transmission mechanism (such as the sprocket bearing seat) of the transfer component 2. The brackets on both sides are welded to support the feed pipe 5 and the nozzle of the automatic flow coating component 3. The overall rigid design can withstand the total weight of the transfer component 2, sand mold and coating. There is no obvious deformation during operation, providing a stable installation and movement reference for each component.

[0029] Then, refer to Figure 2 In this embodiment, the transfer component 2 is installed on the top of the frame 1 and is responsible for the cyclic movement and stable clamping of the sand mold. The moving frame 8 is a rectangular frame structure (cast iron material, surface painted for rust prevention). The bottom is welded with a T-shaped slider, which slides in cooperation with the T-shaped guide rail of the frame 1. Wear-resistant lining strips (polytetrafluoroethylene material) are pasted on the side wall of the slider to reduce sliding friction and ensure that the moving frame 8 moves smoothly along the guide rail without jamming or deviation. The top surface of the moving frame 8 has a reserved installation position for fixing the flipping frame 15 of the flipping and recycling component 6.

[0030] The clamping element 9 is fixed to the top surface of the moving frame 8 (or the top surface of the flipping frame 15). It is usually a pneumatic gripper structure (a mechanical clamp can also be used). It is symmetrically distributed along the edge of the sand mold. Rubber pads are pasted on the inside of the grippers to avoid damage to the surface of the sand mold during clamping. The clamping element 9 is opened and closed by pneumatic drive (or manual adjustment). It can be adapted to sand molds of different sizes to ensure that the sand mold does not loosen during transfer and flipping.

[0031] The transfer drive unit 10 adopts a chain 13 transmission mechanism, including a drive sprocket 11, a driven sprocket 12 and a closed-loop chain 13. The drive sprocket 11 and the driven sprocket 12 are respectively fixed to both ends of the frame 1 through bearing seats. The sprocket axis is parallel to the width direction of the frame 1. The chain 13 is sleeved on the outside of the two sprockets and fixed to the connecting block at the bottom of the moving frame 8. The drive sprocket 11 is driven to rotate by a geared motor. The chain 13 drives the moving frame 8 to move cyclically along the length direction of the frame 1, realizing the automatic transfer of sand molds between the flow coating station and the recycling station.

[0032] Secondly, see Figure 4 In this embodiment, the automatic coating assembly 3 is installed at intervals along the length of the frame 1 on one side (or both sides) of the frame 1. It is the core of realizing automatic coating of sand molds. Each set of automatic coating assemblies 3 includes at least two paint nozzles 4 (made of stainless steel, corrosion resistant), which are symmetrically distributed along the width of the frame 1. The nozzles are oriented towards the sand mold moving path, and the nozzle axis is at a certain angle to the surface of the sand mold (adapted according to the shape of the sand mold to ensure that the paint can evenly cover the concave and convex parts of the sand mold surface). The nozzle outlet has a fan-shaped atomization structure to expand the coating range and avoid local missed coating.

[0033] The feed pipe 5 is a high-pressure resistant rubber pipe (or stainless steel pipe). One end is connected to an external paint source (or the output end of the paint circulation component 7), and the other end is connected to the paint nozzle 4. A flow regulating valve 14 (manual or pneumatic control) is connected in series on the pipe. The axis of the regulating valve is perpendicular to the axis of the feed pipe 5. The paint output is controlled by adjusting the valve opening to ensure that different types of sand molds (such as thick-walled and thin-walled) can obtain a suitable coating thickness and avoid paint accumulation or insufficient coating.

[0034] At least two sets of automatic flow coating components 3 are set along the length of the frame 1. The front set of nozzles focuses on coating the front of the sand mold, while the rear set of nozzles is adapted to the side or complex parts of the sand mold. Through the synergistic effect of multiple sets of nozzles, uniform coating of the sand mold is achieved throughout, eliminating the need for manual touch-up coating.

[0035] Again, see Figure 3In this embodiment, the flipping and recycling component 6 is connected to the moving frame 8 of the transfer component 2 and is used to flip the sand mold to recover excess paint. The flipping frame 15 is a rectangular frame (welded steel section), one end of which is hinged to the top surface of the moving frame 8 through a hinge shaft. The axis of the hinge shaft is parallel to the width direction of the frame 1, ensuring that the flipping frame 15 can rotate around the axis in a vertical plane. The clamping member 9 of the transfer component 2 is fixed on the top surface of the flipping frame 15. The sand mold is fixed on the flipping frame 15 by the clamping member 9 and rotates synchronously with the flipping frame 15.

[0036] The angle adjustment component 16 adopts a hydraulic rod (or pneumatic push rod), and its two ends are connected to the moving frame 8 and the flipping frame 15 respectively through hinge seats. The axes of the two hinge shafts are parallel to the width direction of the frame 1. When the hydraulic rod extends or retracts, it drives the flipping frame 15 to rotate around the hinge shaft, thereby realizing the flipping of the sand mold. The side of the flipping frame 15 is welded with a limiting block 17 (steel plate), and the corresponding position of the moving frame 8 is welded with a limiting stop 18 (angle steel). When the flipping frame 15 rotates to the preset angle, the limiting block 17 and the limiting stop 18 abut against each other, limiting the maximum tilt angle of the flipping frame 15 and preventing the sand mold from falling off due to excessive flipping.

[0037] When the sand mold is rotated by the tilting frame 15, the excess paint on the surface flows downward under the action of gravity and falls into the paint circulation component 7 recycling tank 19 below, realizing the targeted recycling of excess paint and reducing waste and environmental pollution.

[0038] In addition, see Figure 2 In this embodiment, the paint circulation component 7 is located directly below the flipping and recycling component 6, and is responsible for recycling, filtering and reusing the paint. The recycling tank 19 is a rectangular tank (made of stainless steel, corrosion resistant) and is set along the length of the frame 1. The width of the tank opening covers the flipping range of the flipping frame 15, ensuring that all dripping paint can fall into the tank. The bottom of the recycling tank 19 has an inclined structure, and the inclined direction is consistent with the length of the frame 1. An interface is opened at the bottom for connecting the input end of the circulation pump 21, so that the paint can be collected at the bottom.

[0039] The filter element 20 is a drawer-type filter screen (stainless steel woven mesh), which is horizontally installed in the middle of the recovery tank 19 and slides against the inner wall of the tank (it can be pulled out from the side). The filter screen is used to filter sand particles and impurities in the recovered paint to avoid clogging the paint nozzle 4. The drawer-type design makes it easy to remove and clean it regularly without affecting the continuous operation of the device.

[0040] The circulating pump 21 is a corrosion-resistant centrifugal pump. Its input end is connected to the bottom interface of the recovery tank 19 through a pipe, and its output end is connected to the feed pipe 5 of the automatic flow coating component 3 through a pipe, forming a closed loop of "recovery-filtration-resupply". Both the pump body and the pipe are made of materials resistant to coating corrosion to ensure that there is no leakage or blockage during long-term use.

[0041] In addition, see Figure 1In this embodiment, the moving frame 8 of the transfer component 2 drives the sand mold to move cyclically along the frame 1. When the sand mold passes the automatic flow coating component 3, the symmetrically distributed nozzles spray paint onto the surface of the sand mold. The flow regulating valve 14 controls the amount of paint according to the needs of the sand mold. Multiple sets of nozzles work together to achieve uniform coating across the entire area. The stable movement of the moving frame 8 ensures that the relative position between the sand mold and the nozzle is constant, avoiding uneven coating thickness.

[0042] After coating, the sand mold is moved to the flipping and recycling assembly 6 by the moving frame 8. The hydraulic rod drives the flipping frame 15 to rotate, the sand mold tilts, and excess coating flows into the recycling tank 19 below. The limit block 17 and the limit stop 18 work together to control the flipping angle, ensuring that the coating is completely recycled and the sand mold does not fall off. After the flipping is completed, the hydraulic rod is reset, the sand mold returns to the horizontal state, and continues to be moved to the next process by the moving frame 8.

[0043] The paint collected in the recycling tank 19 is filtered through a drawer-type filter and then transported to the feed pipe 5 of the automatic flow coating assembly 3 by the action of the circulation pump 21, and resupplying it to the spray nozzles for use, forming a closed-loop circulation of paint, reducing resource waste. The filter is cleaned regularly to ensure that the circulating paint is clean and to avoid affecting the coating quality.

[0044] In addition, see Figure 1 In this embodiment, no manual intervention is required throughout the entire process. From sand mold clamping, transfer, and flow coating to paint recycling and circulation, everything is completed automatically by mechanical structure, which greatly reduces the intensity of manual labor and is compatible with the batch production rhythm of the automatic molding line.

[0045] Multiple symmetrical nozzles, combined with a stable conveying speed, allow for precise control of paint output via a regulating valve, avoiding thickness variations caused by manual operation. This ensures stable coating quality on the sand mold surface, reducing defects in subsequent castings. The flipping and recycling component 6 recovers excess paint, achieving closed-loop utilization with the paint circulation component 7, minimizing paint waste. The drawer-type filter facilitates cleaning, ensuring clean circulating paint and reducing production costs. The clamping component 9 is adaptable to sand molds of different sizes, and the nozzle angle and flow rate can be adjusted according to the shape of the sand mold, making it suitable for flow coating needs of various casting sand molds.

[0046] Finally, see Figure 1 In this embodiment, it is suitable for batch flow coating of complex sand molds such as automobile engine cylinder blocks and chassis. Multiple sets of nozzles can cover the uneven surface of the sand mold, ensuring coating without dead corners and meeting the requirements of high-precision castings. It is also suitable for flow coating of conventional sand molds such as gears and bearing seats. Circulating transfer and automatic coating can improve production efficiency and adapt to continuous operation of the production line. By adjusting the size of the flipping frame 15 and the stroke of the clamping part 9, it can be adapted to the clamping and flipping of large sand molds. The excess coating recycling function reduces material waste in the flow coating of large sand molds.

[0047] Working principle:

[0048] When using this automatic molding line circulating mobile flow coating device, first adjust the leveling pads at the bottom of the frame 1 to ensure that the frame 1 is level, check whether the chain 13 of the transfer component 2 is driven smoothly, whether the clamping part 9 opens and closes flexibly, adjust the flow regulating valve 14 of the automatic flow coating component 3 to determine the paint output volume suitable for the current sand mold, and clean the recovery tank 19 and filter screen of the paint circulation component 7 to ensure that there are no impurities.

[0049] Place the sand mold to be coated on the flipping frame 15 of the transfer assembly 2, start the clamping component 9, the jaws symmetrically clamp the edge of the sand mold to ensure the sand mold is fixed, start the reduction motor of the transfer drive component 10, the drive sprocket 11 drives the chain 13 to rotate, and the moving frame 8 moves the sand mold towards the automatic coating assembly 3 along the guide rail of the frame 1.

[0050] When the sand mold moves to the first set of automatic flow coating components 3, the nozzle sprays paint onto the front of the sand mold to complete the initial coating. It continues to move to the second set of automatic flow coating components 3, where the nozzle is adapted to the side or complex parts of the sand mold to complete the full-area coating. During the coating process, the flow regulating valve 14 maintains a stable output to ensure uniform thickness.

[0051] After coating, the sand mold moves to the flipping and recycling station with the moving frame 8. The hydraulic rod extends and drives the flipping frame 15 to rotate around the hinge axis. The sand mold gradually tilts, and the excess coating on the surface slides down the sand mold and falls into the recycling tank 19 below. When the flipping frame 15 rotates to the point where the limit block 17 and the limit stop 18 abut, the flipping stops and remains tilted for a period of time to ensure that the excess coating is fully recycled.

[0052] After the paint in the recovery tank 19 is filtered by the drawer-type filter, the circulation pump 21 starts and delivers the clean paint to the feed pipe 5 of the automatic flow coating component 3 to complete the circulation. The hydraulic rod retracts, the tilting frame 15 resets, and the sand mold returns to the horizontal state. The transfer component 2 continues to drive the sand mold to move and send the sand mold with the completed flow coating to the next process. The moving frame 8 returns along the frame 1 in a cycle, ready to clamp the next sand mold to be flow coated.

[0053] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic molding line circulating moving flow coating device, characterized in that, include: The frame (1) is set along the conveying direction of the automatic molding line and serves as the base for the installation of the device; The transfer assembly (2) is mounted on the frame (1) and is used to drive the sand mold to move along the length of the frame (1); Automatic flow coating assembly (3), the automatic flow coating assembly (3) is located on one side of the frame (1) and is used to replace manual coating of sand mold. It includes paint nozzle (4) and feed pipe (5). The paint nozzle (4) is oriented toward the sand mold moving path. One end of the feed pipe (5) is connected to the paint source and the other end is connected to the paint nozzle (4). A flipping and recycling component (6) is connected to a transfer component (2) and is used to flip sand molds to recycle excess paint. as well as Paint recycling component (7), which is located below the flipping recycling component (6), is used to recycle and reuse paint.

2. The automatic molding line circulating moving flow coating device according to claim 1, characterized in that, The transfer assembly (2) includes a movable frame (8), a clamping member (9) and a transfer drive member (10). The movable frame (8) is slidably engaged with the frame (1), and the sliding direction is consistent with the length direction of the frame (1). The clamping member (9) is fixed to the top surface of the movable frame (8) and is used to clamp the sand mold. The transfer drive member (10) drives the movable frame (8) to move along the frame (1).

3. The automatic molding line circulating moving flow coating device according to claim 2, characterized in that, The transfer drive (10) is a chain (13) transmission mechanism, including a drive sprocket (11), a driven sprocket (12) and a chain (13). The drive sprocket (11) and the driven sprocket (12) are respectively located at both ends of the frame (1). The chain (13) is sleeved on the outside of the sprocket and fixed to the bottom of the moving frame (8). The length direction of the chain (13) is parallel to the length direction of the frame (1).

4. The automatic molding line circulating moving flow coating device according to claim 3, characterized in that, The automatic coating assembly (3) is arranged in at least two groups along the length of the frame (1). Each group of coating nozzles (4) is symmetrically distributed along the width of the frame (1). The nozzle axis is set at an angle to the sand mold surface. The feed pipe (5) is equipped with a flow regulating valve (14), and the axis of the regulating valve is perpendicular to the axis of the feed pipe (5).

5. The automatic molding line circulating moving flow coating device according to claim 4, characterized in that, The flipping and recycling assembly (6) includes a flipping frame (15) and an angle adjustment component (16). One end of the flipping frame (15) is hinged to the moving frame (8) of the transfer assembly (2). The axis of the hinge is parallel to the width direction of the frame (1). The clamping component (9) of the transfer assembly (2) is fixed to the top surface of the flipping frame (15). One end of the angle adjustment component (16) is connected to the moving frame (8), and the other end is connected to the flipping frame (15), driving the flipping frame (15) to rotate around the hinge axis.

6. The automatic molding line circulating moving flow coating device according to claim 5, characterized in that, The angle adjustment component (16) is a hydraulic rod. The two ends of the hydraulic rod are respectively hinged to the moving frame (8) and the tilting frame (15). The axes of the two hinge shafts are parallel to the width direction of the frame (1). The tilting frame (15) is provided with a limit block (17) on its side. The moving frame (8) is provided with a limit stop (18) at the corresponding position. The limit block (17) and the limit stop (18) cooperate to limit the maximum tilt angle of the tilting frame (15).

7. The automatic molding line circulating moving flow coating device according to claim 6, characterized in that, The coating circulation assembly (7) includes a recycling tank (19), a filter element (20) and a circulation pump (21). The recycling tank (19) is located directly below the flip recycling assembly (6). The filter element (20) is located inside the recycling tank (19). The input end of the circulation pump (21) is connected to the bottom of the recycling tank (19), and the output end is connected to the feed pipe (5) of the automatic flow coating assembly (3) through a pipe.

8. The automatic molding line circulating moving flow coating device according to claim 7, characterized in that, The filter element (20) is a drawer-type filter screen, which is horizontally positioned in the middle of the recovery tank (19) and slides in cooperation with the inner wall of the recovery tank (19). The bottom of the recovery tank (19) is inclined, and the lower end is connected to the input end of the circulation pump (21). The inclined direction is consistent with the length direction of the frame (1).

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