Flowability detection device and method based on automobile hub coating

Abstract

The invention relates to the technical field of flowability detection, and discloses a flowability detection device and method based on automobile hub paint.The flowability detection device based on the automobile hub paint.The flowability detection device based on the automobile hub paint.The flowability detection device based on the automobile hub paint.The flowability detection device comprises a base and a funnel arranged at the top of the base, a detection plate is arranged at the bottom of the funnel, and the vertical section of the detection plate is in a U shape; an adjusting part for adjusting the curvature of the detection plate is arranged at the top of the base, a first collecting box is arranged at the bottom of the detection plate, and a metering scale is arranged on the top surface of the base; a texture module is arranged on the top surface of the detection plate, a diffusion part for dispersing the coating is arranged at the bottom of the funnel, and the diffusion part enables the coating falling from the interior of the funnel to be dispersed on the texture module on the surface of the detection plate. The device can quantitatively analyze the fluidity difference of the coating under different curvatures and the influence of micro-textures on the fluidity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flow detection, and in particular to a flow detection device and method based on automobile wheel hub coating. BACKGROUND

[0002] The coating quality of automobile wheel hub directly affects its corrosion resistance, aesthetics and service life, and the flowability of powder coating is a key indicator of coating effect. Poor flowability will lead to uneven coating thickness, insufficient edge coverage and other defects. Therefore, in the field of new material detection services, accurate detection of the flowability of wheel hub coating is an important prerequisite for coating formula optimization and coating process improvement. However, the existing devices for detecting the flowability of automobile wheel hub coating have many technical limitations and cannot meet the actual production needs. For example, in terms of scene simulation, the detection plates of existing devices are mostly directly taken in a vertical falling manner to detect powder flowability, or a constant air pressure airflow is used to blow the powder to detect its flowability. The real shape of the curved surface of different parts of the wheel hub (such as the circular arc transition area of the rim and the curved surface with different curvatures of the spoke) cannot be reproduced, and the surface of the detection plate of the existing technology is mostly smooth design, without considering the influence of the microtexture (such as fine lines and concave-convex structures) formed on the surface of the wheel hub due to casting and processing on the flow of the powder, resulting in that the detection result can only reflect the flowability under ideal conditions, and is disconnected with the flow difference caused by the curvature of the curved surface and the texture hindrance during actual coating, and cannot provide effective reference for the targeted selection of wheel hub coating. SUMMARY

[0003] In view of the problem that the existing technology cannot reproduce the real shape of the curved surface of different parts of the wheel hub and the influence of the surface microtexture on the flow of the coating in scene simulation, resulting in that the detection result is disconnected with the actual coating condition and cannot provide effective reference, a flow detection device and method based on automobile wheel hub coating are proposed.

[0004] In one aspect of the present application, a flow detection device based on automobile wheel hub coating is provided, which aims to solve the defects of the existing detection device in scene simulation and other aspects, and to realize accurate detection of the flowability of wheel hub coating and provide reliable support for coating formula optimization and coating process improvement.

[0005] The technical scheme of the present application is as follows: a flow detection device based on automobile wheel hub coating, comprising a base and a hopper arranged on the top of the base, the bottom of the hopper is provided with a detection plate, and the vertical section of the detection plate is U-shaped, the top of the base is provided with an adjusting component for adjusting the curvature of the detection plate, the bottom of the detection plate is provided with a first collection box, and the top surface of the base is provided with a metering scale; the top surface of the detection plate is provided with a texture module, the bottom of the hopper is provided with a diffusion component for dispersing the coating, and the diffusion component disperses the coating falling inside the hopper on the texture module on the surface of the detection plate.

[0006] Further, the adjusting component comprises a first supporting rod arranged on the top surface of the base, a second supporting rod slidingly arranged on the top surface of the base, a movable rod arranged on the side surface of the top of the detection plate, a positioning member arranged on the outer wall of the first supporting rod and matched with the shape of the movable rod, a sleeve arranged on the side surface of the bottom of the detection plate, a sliding frame slidingly arranged on the outer wall of the second supporting rod, and a plug rod arranged on the outer wall of the sliding frame and matched with the shape of the sleeve, and the end of the movable rod is inserted into the inside of the positioning member, and the end of the plug rod is inserted into the inside of the sleeve.

[0007] Further, the positioning member comprises a connecting plate arranged on the outer wall of the first supporting rod and a snap ring arranged on the side surface of the connecting plate away from the first supporting rod, and the snap ring is made of elastic material.

[0008] Further, the adjusting component further comprises a sliding rail arranged on the top surface of the base for the second supporting rod to slide, a limiting block slidingly arranged on the outer wall of one of the second supporting rods, and a square hole opened on the outer wall of one of the sliding rails for the limiting block to be inserted, and the square hole is provided with a plurality of square holes.

[0009] Further, the adjusting component further comprises a push rod slidingly arranged on the outer wall of one of the second supporting rods, a connecting rod arranged on one end of the push rod, and a straight-through slot opened on the outer wall of the sliding frame for the push rod to pass through, and the end of the connecting rod away from the push rod is fixedly connected with the outer wall of the limiting block; the adjusting component further comprises a guide rod arranged on the inner wall of one of the second supporting rods, a through hole opened on the rod wall of the connecting rod for the guide rod to pass through, a compression spring sleeved on the outer wall of the guide rod, and a sealing cover arranged on the top end of one of the second supporting rods.

[0010] Further, the top surface of the base is provided with a first scale disc, the top surface of the base is provided with a second scale disc, and the inside of the first collection box is provided with a second collection box corresponding to the texture module.

[0011] Further, the diffusion component comprises a first vertical rod arranged on the top surface of the base, a second vertical rod rotatably arranged on the top of the first vertical rod, and a first mounting plate slidingly arranged on the rod wall of the second vertical rod, and the funnel is fixedly installed on the first mounting plate; the diffusion component further comprises a square tube slidingly arranged on the outer wall of the first mounting plate, a supporting plate arranged on the bottom surface of the square tube, a flow guide plate clamped on the bottom end of the funnel, and a dispersion plate arranged on the side surface of the supporting plate close to the funnel for dispersing the falling paint, and the position of the dispersion plate corresponds to the position of the flow guide plate.

[0012] Further, the diffusion component further comprises a second mounting plate slidingly arranged on the rod wall of the second vertical rod, a driving motor arranged on the outer wall of the second mounting plate, and a stirring rod arranged on the output shaft of the driving motor for stirring the paint inside the funnel.

[0013] Further, the top end of the first vertical rod is provided with a fixing rod, the rod wall of the fixing rod is provided with a first magnetic plate, the bottom end of the second vertical rod is provided with a turning groove for the first magnetic plate to turn, the inner wall of the turning groove is provided with a second magnetic plate matched with the first magnetic plate, and the inner wall of the turning groove is provided with a third magnetic plate matched with the first magnetic plate.

[0014] Further, the present application also provides a flowability detection method based on automobile hub coating, comprising the following steps: Step one: adjust the curvature of the detection plate through the adjusting component to match the detection requirement; Step two: pour the powder coating into the funnel, start the driving motor to drive the stirring rod to rotate and scatter the agglomerated blocks, when the coating flows out from the bottom end of the funnel, it is dispersed through the diffusion component, and finally uniformly distributed on the texture module surface of the detection plate in a planar form; Step three: the coating flows along the curved surface of the detection plate under the action of gravity, the flow state is observed through the transparent detection plate, and the longitudinal diffusion range and the transverse flow distance of the coating are read by means of the first scale disc and the second scale disc; Step four: after the coating flows to the bottom of the detection plate, the total amount is collected by the first collection box, the shunt coating of the corresponding texture area is collected by the second collection box, the mass is weighed by the weighing scale, the influence of different curvatures and micro textures on the flowability of the coating is quantitatively analyzed, and the detection is completed.

[0015] The present application has the following advantages: By pouring the powder coating into the funnel, the driving motor drives the stirring rod to rotate to scatter the agglomerated blocks, when the coating flows out from the bottom end of the funnel, it is first dispersed by the diffusion component, and then flows along the curved surface of the detection plate under the action of gravity, the coating flowing to the bottom of the detection plate is collected by the first collection box, and the shunt coating of the corresponding texture area is collected by the second collection box, the mass of the coating in the first collection box and the second collection box is weighed by the weighing scale, the flowability difference of the coating under different curvatures and the influence of micro textures on the flowability are quantitatively analyzed, and the flowability of the powder coating under the action of gravity under different curvatures can be detected.

[0016] The diversion plate of the diffusion component divides the coating and the dispersion plate scatters the coating, so that the coating is uniformly distributed on the surface of the detection plate in a nearly planar form, the initial distribution error of the traditional detection, such as center accumulation and edge sparseness, is completely avoided, and it is ensured that the flow distance, diffusion range and other data are only determined by the flowability of the coating itself. At the same time, the adjusting component realizes the accurate stepwise adjustment of the curvature of the detection plate, and the quantitative record of the first scale disc and the second scale disc can reproduce the flow state under different hub curved surface scenes, and provide a scientific basis for the performance evaluation of the coating.

[0017] The texture module is designed to be quickly replaced by magnetic attraction or buckle design, and can accurately copy the microstructure such as the texture, concave-convex and the like of the hub surface, analyze the influence of different textures on the flow of paint in combination with the corresponding second collecting box, so that the detection data is directly related to the key indicators such as coating uniformity and corner coverage after actual coating, thereby providing a targeted direction for paint formula improvement and hub texture design optimization, and reducing the rework cost in production. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole perspective view of the present application; Figure 2 It is an installation schematic view of the positioning member in the present application; Figure 3 It is a perspective view of the positioning member in the present application; Figure 4 It is a perspective view of the present application; Figure 1 It is an enlarged schematic view of position A in the present application; Figure 5 It is a sectional view of the second support rod in the present application; Figure 6 It is a front view of the dispersion plate in the present application; Figure 7 It is a position schematic view of the square tube in the storage state in the present application; Figure 8 It is a position schematic view of the turning groove in the present application; Figure 9 It is an installation schematic view of the fixed rod in the present application; Figure 10 It is an installation schematic view of the first and second dials in the present application.

[0019] In the figure: 1, base; 2, first vertical rod; 3, second vertical rod; 4, first mounting plate; 5, funnel; 6, second mounting plate; 7, driving motor; 8, stirring rod; 9, detection plate; 10, first support rod; 11, second support rod; 12, movable rod; 13, positioning member; 14, connecting plate; 15, snap ring; 16, sleeve; 17, sliding frame; 18, insertion rod; 19, sliding rail; 20, first collecting box; 21, metering scale; 22, limiting block; 23, square hole; 24, push rod; 25, connecting rod; 26, guide rod; 27, compression spring; 28, straight-through groove; 29, sealing cover; 30, guide plate; 31, square tube; 32, support plate; 33, dispersion plate; 34, texture module; 35, second collecting box; 36, fixed rod; 37, first magnetic plate; 38, turning groove; 39, second magnetic plate; 40, third magnetic plate; 41, first dial; 42, second dial. DETAILED DESCRIPTION

[0020] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0021] Embodiment 1, refer to Figures 1-10 For the first embodiment of the present application, a flowability detection device for automobile wheel hub coating is provided, which comprises a base 1 and a funnel 5 arranged on the top of the base 1. The bottom of the funnel 5 is provided with a detection plate 9, and the vertical section of the detection plate 9 is U-shaped. The top of the base 1 is provided with an adjusting component for adjusting the curvature of the detection plate 9. The bottom of the detection plate 9 is provided with a first collection box 20, and the top surface of the base 1 is provided with a metering scale 21. The top surface of the detection plate 9 is provided with a texture module 34, and the bottom of the funnel 5 is provided with a diffusion component for dispersing the coating. The diffusion component causes the coating falling inside the funnel 5 to be dispersed on the texture module 34 on the surface of the detection plate 9.

[0022] Specifically, the coating of the automobile wheel hub is a powder coating, and the coating powder is added through the funnel 5. The diffusion component at the bottom of the funnel 5 can effectively disperse the powder uniformly and make it fall on the surface of the detection plate 9 with a certain curvature and adjustable shape. The detection plate 9 is preferably made of transparent acrylic material, which is convenient for observing the flow state of the powder and cleaning the residual powder. The curvature of the detection plate 9 can be flexibly adjusted by the adjusting component, so that the coating powder is driven by gravity to flow along the curved surface of the detection plate 9, so as to detect the flowability of the powder coating under different curvatures.

[0023] When the powder coating falls from the funnel 5, if there is no diffusion component, it is easy to form a columnar falling due to gravity concentration, which causes the initial coating on the surface of the detection plate 9 to be unevenly distributed, commonly as central accumulation and edge sparseness, directly interfering with the objectivity of the flowability detection result. The diffusion component makes the coating fall on the detection plate 9 in a uniform surface distribution state through physical dispersion, and the uniform surface distribution can make the coating form an initial layer with consistent thickness on the surface of the detection plate 9 as much as possible. At this time, the flow distance, diffusion range and other data are only determined by the flowability of the coating itself, and are not interfered by the initial distribution difference. For example, when testing two kinds of coatings, the flowability can be directly judged by the straight line distance flowed in the same time, without the need for additional correction of the initial accumulation error, and the result is self-evident, even non-professionals can quickly interpret it.

[0024] The texture module 34 on the surface of the detection plate 9 further simulates the microstructure (such as the texture, concave-convex) of the surface of the automobile wheel hub. It can be fixed on the detection plate 9 or replaceably mounted on the detection plate 9, such as magnetic attraction or buckle connection, supporting the replacement of texture modules 34 with different texture parameters (texture depth, pitch, inclination), enhancing the actual relevance of the test. After the powder flows to the bottom of the detection plate 9, it is collected by the first collection box 20, and the metering scale 21 on the base 1 can accurately measure the powder usage and total flow amount, providing support for quantitative analysis of powder flow behavior.

[0025] With reference to Figures 2-3 , the adjusting component comprises a first support rod 10 fixedly installed on the top surface of the base 1, a second support rod 11 slidingly installed on the top surface of the base 1, a movable rod 12 fixedly installed on the side of the top of the detection plate 9, a positioning piece 13 arranged on the outer wall of the first support rod 10 and matched with the shape of the movable rod 12, a sleeve 16 fixedly installed on the side of the bottom of the detection plate 9, a sliding frame 17 slidingly installed on the outer wall of the second support rod 11, and a plug rod 18 fixedly installed on the outer wall of the sliding frame 17 and matched with the shape of the sleeve 16, and the end of the movable rod 12 is inserted into the inside of the positioning piece 13, and the end of the plug rod 18 is inserted into the inside of the sleeve 16.

[0026] Specifically, the movable rod 12 can rotate in the inside of the positioning piece 13, the sleeve 16 can rotate on the rod wall of the plug rod 18, cooperate with the sliding frame 17, adjust the height of the sliding frame 17 by sliding the position of the second support rod 11, can adjust the position of the bottom of the detection plate 9, and further can effectively adjust the curvature change of the whole detection plate 9, the coordinated adjustment of the top and bottom of the detection plate 9 ensures the stability of the curved surface shape of the detection plate 9, not only meets the simulation needs of different curvatures (such as the arc surfaces of different parts of the hub), but also ensures the consistency of the flow path of the paint under the driving of gravity, and provides a stable physical environment for the flowability detection.

[0027] With reference to Figure 3 , the positioning piece 13 comprises a connecting plate 14 fixedly installed on the outer wall of the first support rod 10 and a snap ring 15 fixedly installed on the side of the connecting plate 14 away from the first support rod 10, and the snap ring 15 is made of elastic material.

[0028] Specifically, the connecting plate 14 ensures the supporting strength of the snap ring 15, the elastic property of the snap ring 15 not only allows the movable rod 12 to be inserted or pulled out, but also allows the movable rod 12 to rotate freely, which is convenient for quickly installing and dismounting the detection plate 9, and allows the detection plate 9 to adjust the curvature.

[0029] With reference to Figure 4 , the adjusting component further comprises a slide rail 19 fixedly installed on the top surface of the base 1 for the second support rod 11 to slide, a limiting block 22 slidingly installed on the outer wall of one of the second support rods 11, and a square hole 23 opened on the outer wall of one of the slide rails 19 for the limiting block 22 to be inserted, and the square hole 23 is provided with a plurality of square holes.

[0030] Specifically, the slide rail 19 guides the second support rod 11 to slide along a straight line, avoids deviation, and ensures the linear stability of the adjustment of the bottom of the detection plate 9, the limiting block 22 is inserted into different square holes 23, which can lock the position of the second support rod 11, a plurality of square holes 23 correspond to a plurality of gear adjustments, and the precise step-by-step adjustment of the curvature of the detection plate 9 is realized.

[0031] With reference to Figures 1-5The adjusting component further comprises a push rod 24 slidingly installed on the outer wall of one of the second support rods 11, a connecting rod 25 fixedly installed on one end of the push rod 24, and a straight-through slot 28 provided on the outer wall of the sliding frame 17 for the push rod 24 to pass through, and the end of the connecting rod 25 away from the push rod 24 is fixedly connected with the outer wall of the limiting block 22; the adjusting component further comprises a guide rod 26 fixedly installed on the inner wall of one of the second support rods 11, a through hole provided on the rod wall of the connecting rod 25 for the guide rod 26 to pass through, a compression spring 27 sleeved on the outer wall of the guide rod 26, and a sealing cover 29 provided at the top end of one of the second support rods 11.

[0032] Specifically, the compression spring 27 pushes the limiting block 22 to embed into the square hole 23 in the natural state, achieving automatic locking. When adjusting, the operator pushes the push rod 24 to extrude the compression spring 27, so that the limiting block 22 is separated from the square hole 23, and then the second support rod 11 is slid. After the second support rod 11 is slid to the target position, the push rod 24 is released, the compression spring 27 is reset to drive the limiting block 22 to embed into the corresponding square hole 23, locking the position of the bottom of the second support rod 11. At the same time, the height of the sliding frame 17 is adjusted, the position of the bottom of the detection plate 9 can be adjusted, and the curvature change of the whole detection plate 9 can be effectively adjusted, realizing the curvature adjustment of the detection plate 9. The operation does not need tools, is convenient and labor-saving, and can be completed by one person, greatly improving the experimental preparation efficiency.

[0033] Referring to Figure 10 The top surface of the base 1 is provided with a first scale disc 41, the top surface of the base 1 is provided with a second scale disc 42, and the inside of the first collection box 20 is provided with a second collection box 35 corresponding to the texture module 34.

[0034] Specifically, since the detection plate 9 is transparent, the base 1 can be provided with a difference color that is obviously different from the paint, and the operator can directly observe the longitudinal diffusion distance of the paint through the first scale disc 41 and the second scale disc 42 by looking down at the base 1.

[0035] The texture module 34 simulates the microstructure (such as lines, concaves and convexes) of the hub surface. When the powder paint flows, it may be divided or retained due to the texture obstruction. The second collection box 35 corresponds to the texture module 34 and can accurately collect the paint flowing through a specific texture area, while the first collection box 20 collects the total flow. By comparing the amount of paint in the second collection box 35 and the first collection box 20, the influence of different micro textures on the flowability of the paint (such as 30% of the paint being retained due to a certain type of texture) can be quantitatively analyzed, targeted data for optimizing the design of the hub surface texture or the paint formula is provided, and the relevance of the detection and the actual painting scene is enhanced.

[0036] Embodiment 2, referring to Figures 1-10For the second embodiment of the present application, which is different from the first embodiment, the diffusion component includes a first vertical rod 2 fixedly installed on the top surface of the base 1, a second vertical rod 3 rotatably installed on the top of the first vertical rod 2, a first installation plate 4 slidably installed on the wall of the second vertical rod 3, and a funnel 5 fixedly installed on the first installation plate 4; the diffusion component further includes a square tube 31 slidably installed on the outer wall of the first installation plate 4, a support plate 32 fixedly installed on the bottom surface of the square tube 31, a flow guide plate 30 clamped on the bottom end of the funnel 5, and a dispersion plate 33 fixedly installed on the side of the support plate 32 close to the funnel 5 for dispersing the falling paint, and the position of the dispersion plate 33 corresponds to the position of the flow guide plate 30.

[0037] Specifically, the second vertical rod 3 can rotate around the first vertical rod 2 to achieve the angle adjustment (e.g., 0°-180° rotation) of the funnel 5 in the horizontal direction, providing observation space for the operator to view the first and second dials 41 and 42 on the base 1, and further improving the convenience of using the device.

[0038] The first installation plate 4 slides along the second vertical rod 3 to accurately adjust the height of the funnel 5, so that the device can detect the flowability of the paint falling at different heights, further expanding the detection application range.

[0039] The flow guide plate 30 is clamped on the bottom end of the funnel 5, which can pre-divert the concentrated paint flowing out of the funnel 5 into multiple fine streams to avoid direct falling and forming columnar accumulation, and then further divert the multiple fine streams in different directions through multiple dispersion plates 33, so that the falling paint finally forms a nearly planar form and is uniformly distributed.

[0040] Referring to Figure 1 , the diffusion component further includes a second installation plate 6 slidably installed on the wall of the second vertical rod 3, a drive motor 7 fixedly installed on the outer wall of the second installation plate 6, and a stirring rod 8 fixedly installed on the output shaft of the drive motor 7 for stirring the paint inside the funnel 5.

[0041] Specifically, the second installation plate 6 slides along the second vertical rod 3 to adjust the depth of the stirring rod 8 extending into the funnel 5, ensuring that the paint of different filling amounts can be fully stirred, and the drive motor 7 drives the stirring rod 8 to rotate, so that the paint inside the funnel 5 always maintains a uniform distribution state.

[0042] Referring to Figures 8-9 , the top end of the first vertical rod 2 is fixedly installed with a fixed rod 36, the wall of the fixed rod 36 is fixedly installed with a first magnetic plate 37, the bottom end of the second vertical rod 3 is provided with a turning groove 38 for the rotation of the first magnetic plate 37, the inner wall of the turning groove 38 is fixedly installed with a second magnetic plate 39 and a third magnetic plate 40 which are mutually adapted with the first magnetic plate 37.

[0043] Specifically, when the second vertical rod 3 rotates around the fixed rod 36, the second magnetic plate 39 and the third magnetic plate 40 in the steering groove 38 can be attracted by the first magnetic plate 37 through magnetic force, and temporary locking can be achieved when rotating to 180°, without the need for additional buckles or screws, and the adjustment process is smooth and labor-saving.

[0044] The rest of the structure is the same as that of embodiment 1.

[0045] Working principle: When the curvature of the detection plate 9 needs to be adjusted, the operator pushes the push rod 24 to compress the compression spring 27, so that the limiting block 22 is disengaged from the square hole 23, and then the second supporting rod 11 is slid, and the push rod 24 is released after the second supporting rod 11 is slid to the target position, and the compression spring 27 is reset to drive the limiting block 22 to be embedded in the corresponding square hole 23, locking the position of the bottom of the second supporting rod 11, and at the same time, the height of the sliding frame 17 is adjusted to adjust the position of the bottom of the detection plate 9, thereby effectively adjusting the curvature change of the detection plate 9, realizing the curvature adjustment of the detection plate 9, and the operation does not need tools, which is convenient and labor-saving, and a single person can complete the adjustment, greatly improving the experimental preparation efficiency.

[0046] When the flowability of the powder coating needs to be detected, the powder coating is poured into the hopper 5, the stirring rod 8 is driven to rotate by the motor 7, and the coating agglomerates are broken up. When the coating flows out from the bottom end of the hopper 5, it is first divided into multiple streams by the flow guide plate 30, and then further broken up by the dispersion plate 33, and finally uniformly distributed on the surface of the texture module 34 of the detection plate 9 in the form of a nearly planar shape, forming an initial coating layer with uniform thickness, avoiding center accumulation interference. The coating flows along the curved surface of the detection plate 9 under the action of gravity, and the transparent acrylic detection plate 9 facilitates observation of the flow state of the coating on the texture module 34. The operator reads and observes the dynamic data of the coating in the longitudinal and transverse directions in real time through the first scale disc 41 and the second scale disc 42, and records the flow parameters at different time nodes. The coating flowing to the bottom of the detection plate 9 is collected by the first collection box 20, and the second collection box 35 collects the split coating of the corresponding texture area. The coating mass of the first collection box 20 and the second collection box 35 is weighed by the metering scale 21, and the flowability difference of the coating under different curvatures and the influence of micro-texture on flowability can be quantitatively analyzed in combination with the flow distance and diffusion range data.

[0047] Embodiment 3, refer to Figures 1-10 As a third embodiment of the present application, a kind of based on automobile wheel rim coating flowability detection method is provided, using a kind of based on automobile wheel rim coating flowability detection device, comprising the following steps: Step one: adjust the curvature of the detection plate 9 by adjusting the adjusting component to match the detection requirement; Step two: pour the powder coating into the funnel 5, start the drive motor 7 to rotate the stirring rod 8 to break the agglomerates, when the coating flows out from the bottom of the funnel 5, it is dispersed by the diffusion component, and finally uniformly distributed on the surface of the texture module 34 of the detection plate 9 in a planar shape; Step three: the coating flows along the curved surface of the detection plate 9 under the action of gravity, the flow state is observed through the transparent detection plate 9, and the longitudinal diffusion range and the transverse flow distance of the coating are read by means of the first scale disc 41 and the second scale disc 42; Step four: after the coating flows to the bottom of the detection plate 9, the total amount is collected by the first collection box 20, and the shunt coating corresponding to the texture area is collected by the second collection box 35, the mass is weighed by the metering scale 21, the influence of different curvatures and micro textures on the flowability of the coating is quantitatively analyzed in combination with the flow parameters, and the detection is completed.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A device for detecting the flowability of automobile wheel hub coating material, comprising a base (1) and a funnel (5) arranged on the top of the base (1), characterized in that, The bottom of the funnel (5) is provided with a detection plate (9), and the vertical section of the detection plate (9) is U-shaped; the top of the base (1) is provided with an adjusting component for adjusting the curvature of the detection plate (9); the bottom of the detection plate (9) is provided with a first collecting box (20); and the top surface of the base (1) is provided with a metering scale (21). The top surface of the detection plate (9) is provided with a texture module (34); the bottom of the funnel (5) is provided with a diffusion component for dispersing paint; and the diffusion component disperses the paint falling inside the funnel (5) on the texture module (34) on the surface of the detection plate (9).

2. The flowability detection device for automotive wheel hub coating material according to claim 1, characterized in that: The adjusting component comprises a first supporting rod (10) arranged on the top surface of the base (1), a second supporting rod (11) slidingly arranged on the top surface of the base (1), a movable rod (12) arranged on the side of the top of the detection plate (9), a positioning piece (13) arranged on the outer wall of the first supporting rod (10) and matched with the shape of the movable rod (12), a sleeve (16) arranged on the side of the bottom of the detection plate (9), a sliding frame (17) slidingly arranged on the outer wall of the second supporting rod (11), and a plug rod (18) arranged on the outer wall of the sliding frame (17) and matched with the shape of the sleeve (16); and the end of the movable rod (12) is inserted into the inside of the positioning piece (13), and the end of the plug rod (18) is inserted into the inside of the sleeve (16).

3. The flowability detection device for automotive wheel hub coating material according to claim 2, characterized in that: The positioning piece (13) comprises a connecting plate (14) arranged on the outer wall of the first supporting rod (10) and a snap ring (15) arranged on the side of the connecting plate (14) away from the first supporting rod (10); and the snap ring (15) is made of elastic material.

4. The flowability detection device for automotive wheel hub coating material according to claim 2, characterized in that: The adjusting component further comprises a sliding rail (19) arranged on the top surface of the base (1) for the sliding of the second supporting rod (11), a limiting block (22) slidingly arranged on the outer wall of one of the second supporting rods (11), and a square hole (23) opened on the outer wall of one of the sliding rails (19) for the insertion of the limiting block (22); and a plurality of square holes (23) are arranged.

5. The flowability detection device for automotive wheel hub coating material according to claim 4, characterized in that: The adjusting component further comprises a push rod (24) slidingly arranged on the outer wall of one of the second supporting rods (11), a connecting rod (25) arranged on one end of the push rod (24), and a straight-through slot (28) opened on the outer wall of the sliding frame (17) for the passage of the push rod (24); and the end of the connecting rod (25) away from the push rod (24) is fixedly connected with the outer wall of the limiting block (22). The adjusting component further comprises a guide rod (26) arranged on the inner wall of one of the second supporting rods (11), a through hole opened on the rod wall of the connecting rod (25) for the passage of the guide rod (26), a compression spring (27) sleeved on the outer wall of the guide rod (26), and a sealing cover (29) arranged on the top end of one of the second supporting rods (11).

6. The flowability detection device for automotive wheel hub coating material according to claim 2, characterized in that: The top surface of the base (1) is provided with a first scale disc (41); the top surface of the base (1) is provided with a second scale disc (42); and the inside of the first collecting box (20) is provided with a second collecting box (35) corresponding to the texture module (34).

7. The flowability detection device for automotive wheel hub coating material according to claim 6, wherein: The diffusion component comprises a first vertical rod (2) arranged on the top surface of the base (1), a second vertical rod (3) rotatably arranged on the top of the first vertical rod (2), a first mounting plate (4) slidably arranged on the wall of the second vertical rod (3), and a funnel (5) fixedly arranged on the first mounting plate (4); The diffusion component further comprises a square tube (31) slidably arranged on the outer wall of the first mounting plate (4), a support plate (32) arranged on the bottom surface of the square tube (31), a flow guide plate (30) clamped on the bottom end of the funnel (5), and a dispersion plate (33) arranged on the side of the support plate (32) close to the funnel (5) for dispersing the falling paint, and the position of the dispersion plate (33) corresponds to the position of the flow guide plate (30).

8. The flowability detection device for automotive wheel hub coating material according to claim 7, characterized in that: The diffusion component further comprises a second mounting plate (6) slidably arranged on the wall of the second vertical rod (3), a drive motor (7) arranged on the outer wall of the second mounting plate (6), and a stirring rod (8) arranged on the output shaft of the drive motor (7) for stirring the paint in the funnel (5).

9. The flowability detection device for automotive wheel hub coating material according to claim 8, characterized in that: The top end of the first vertical rod (2) is provided with a fixed rod (36), the wall of the fixed rod (36) is provided with a first magnetic plate (37), the bottom end of the second vertical rod (3) is provided with a turning groove (38) for the rotation of the first magnetic plate (37), the inner wall of the turning groove (38) is provided with a second magnetic plate (39) matched with the first magnetic plate (37), and the inner wall of the turning groove (38) is provided with a third magnetic plate (40) matched with the first magnetic plate (37).

10. A method for detecting the flowability of an automobile wheel rim coating material, using the flowability detecting apparatus for an automobile wheel rim coating material according to claim 8, characterized by, The method comprises the following steps: Step one: adjust the curvature of the detection plate (9) by adjusting the adjusting component to match the detection requirements; Step two: pour the powder paint into the funnel (5), start the drive motor (7) to drive the stirring rod (8) to rotate and scatter the agglomerates, and when the paint flows out from the bottom end of the funnel (5), it is dispersed by the diffusion component, and finally uniformly distributed on the surface of the texture module (34) of the detection plate (9) in a planar shape; Step three: the paint flows along the curved surface of the detection plate (9) under the action of gravity, the flow state is observed through the transparent detection plate (9), and the longitudinal diffusion range and transverse flow distance of the paint are read by means of the first scale disc (41) and the second scale disc (42); Step four: after the paint flows to the bottom of the detection plate (9), the total amount is collected by the first collection box (20), the shunt paint corresponding to the texture area is collected by the second collection box (35), the mass is weighed by the metering scale (21), and the influence of different curvatures and micro textures on the flowability of the paint is quantitatively analyzed combined with the flow parameters, and the detection is completed.

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