A model airplane shell uniform spraying device

Abstract

The utility model relates to a toy model processing technical field especially relates to a model aircraft shell even spraying device, including work table, the work table bottom surface four corners are fixedly arranged with the prop, still include spraying chamber and adsorption module, the work table top fixed mounting has the spraying chamber, the spraying chamber side wall has set up the discharge opening, the top fixed mounting of spraying chamber has the spraying pipe, the spraying pipe one end is connected with the spraying power pump, the spraying pipe is uniformly spaced and is provided with a plurality of spray heads downwards, the work table middle part has set up the spraying groove that recesses downwards, the work table's spraying groove is provided with not less than two adsorption modules, the adsorption module is used for adsorbing the model aircraft shell that waits for spraying, the utility model discloses through setting adjustable angle and position's adsorption module, can flexible adaptation various special-shaped model aircraft shell's inner surface carries out adsorption fixed, significantly improves the applicability and positioning stability to different shape workpieces.

Description

Technical Field

[0001] This utility model relates to the field of toy model processing technology, and in particular to a device for uniformly spraying coating on the shell of an aircraft model. Background Technology

[0002] The painting process for model aircraft shells not only directly affects their appearance and texture, but also has a significant impact on their aerodynamic or hydrodynamic performance, material weather resistance, and overall service life. As the requirements for lightweight, high gloss, and surface uniformity in model aircraft products continue to increase, traditional manual painting methods are no longer sufficient to meet high-quality production demands. Currently, the industry has begun to introduce automated or semi-automated painting equipment to improve coating uniformity and operational efficiency.

[0003] Patent CN213967294U discloses a painting device for the surface of a car toy model, including a frame, a motor, a positioning rubber suction cup, a belt drive assembly, and a nozzle. The motor is fixed to the inner side of the bottom of the frame, and the driving bevel gear and the driven bevel gear are meshed together, with the driven bevel gear welded and fixed to the end of a horizontal shaft. The above-mentioned painting device realizes the relative movement between the nozzle and the model through the motor drive and transmission mechanism, thereby improving the spraying coverage effect. However, there are still shortcomings in practical applications. Specifically, the use of positioning rubber suction cups to position the model cannot effectively adapt to the complex curved surfaces, thin-walled structures, hollow areas, or asymmetrical geometric features commonly found on model aircraft shells. This leads to the shell shaking, rotating, or even falling off due to the small torque generated by airflow impact or paint adhesion during the spraying process. Secondly, the existing device lacks an effective mechanism for treating overspray paint mist. A large amount of scattered paint mist will deposit on the bottom plate of the workbench, and after multiple accumulations, it will form a thick and uneven paint layer, which not only interferes with the stable placement of subsequent workpieces, but may also stick to the bottom of the model aircraft, causing secondary pollution. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a uniform coating device for model aircraft shells.

[0005] The technical solution is as follows: A uniform spraying device for model aircraft shells includes a workbench with support pillars fixedly installed at the four corners of its bottom surface; it also includes a spraying chamber and adsorption modules. The spraying chamber is fixedly installed on the top of the workbench, with a discharge port on its side wall. A spraying pipe is fixedly installed on the top of the spraying chamber, with one end connected to a spraying power pump. Multiple nozzles are evenly spaced downwards on the spraying pipe. A recessed spraying groove is formed in the center of the workbench, and at least two adsorption modules are installed within the spraying groove. The adsorption modules are used to adsorb the model aircraft shells to be sprayed. Each adsorption module includes a mounting base and a rotating frame. The device comprises a positioning suction cup, a spring, a negative pressure tube, and a driving component. The mounting base is fixedly installed on the bottom plate of the spray tank on the workbench. A rotating frame is symmetrically connected to both sides of the top of the mounting base. Positioning suction cups are slidably mounted on the rotating frames. A spring is installed between the rotating frames and the positioning suction cups. A negative pressure tube is installed on the workbench, with one end connected to a suction pump. The negative pressure tube is connected to each positioning suction cup. A driving component for driving the rotating frames is installed on the mounting base. The bottom plate of the spray tank on the workbench is inclined, and a rinsing component for rinsing the sprayed material is installed on the top of the bottom plate. A control panel for controlling the entire spraying device is installed on the workbench.

[0006] Optionally, the driving component consists of a motor, a worm gear, and a worm wheel. The motor is fixedly mounted on the mounting base, the worm gear is fixedly connected to the output shaft of the motor, and the worm wheel is fixedly mounted on the rotating shaft of the rotating frame. The worm gear and the worm wheel mesh with each other.

[0007] Optionally, the rinsing component includes a rinsing pipe and a water supply pipe. The rinsing pipe is horizontally fixed on the top of the bottom plate of the spray tank on the workbench. The water nozzle of the rinsing pipe is parallel to the bottom plate of the spray tank. One end of the rinsing pipe is connected to the water supply pipe.

[0008] Optionally, an air curtain component is provided on the top of the spraying tank of the workbench. The air curtain component includes an air curtain frame and an air inlet pipe. An annular air curtain frame is fixedly provided at the top edge of the spraying tank. The top of the air curtain frame is connected to the air inlet pipe. The air curtain frame is used to generate an air curtain at the edge of the spraying tank.

[0009] Optionally, the top plate of the air curtain frame is an inwardly inclined annular structure, and multiple exhaust vents are evenly spaced on the inclined frame plate of the air curtain frame.

[0010] Optionally, air guide plates are fixedly provided at intervals on the top frame plate of the air curtain frame, and the air guide plates are used to guide the airflow downward to the spray tank of the workbench.

[0011] Optionally, the bottom of the support column is provided with foot pads to enhance the stability of the workbench.

[0012] Optionally, a cover plate is hinged to the discharge port on the side wall of the spray chamber. The cover plate is used to seal and close the discharge port of the spray chamber, and a handle is provided on the outer wall of the cover plate.

[0013] Optionally, the bottom of the spray tank base plate of the workbench is provided with an outlet, and a drainage plate is inclinedly provided at the outlet of the spray tank. The drainage plate is used to drain the mixture of water and paint.

[0014] Optionally, a filter screen is installed at the outlet of the spray tank near the drainage plate, the filter screen being used to intercept impurities during the rinsing process.

[0015] Beneficial effects:

[0016] 1. This utility model, by setting an adsorption module with adjustable angle and position, can flexibly adapt to the inner surface of various irregularly shaped model aircraft shells for adsorption and fixation, significantly improving the applicability and positioning stability of workpieces of different shapes.

[0017] 2. The spray tank bottom plate of this utility model is inclined and equipped with a flushing device, which can form a water curtain during the spraying process to wash away the scattered paint in time. The mixed liquid is discharged through the drainage plate and filtered through the filter screen, which facilitates subsequent recycling and reduces waste and environmental pollution.

[0018] 3. This utility model sets an air curtain component at the top of the spray tank, forming a downward-directing air curtain barrier at the tank opening, which effectively prevents paint particles from overflowing or adhering to the tank wall, keeping the equipment clean and improving operational safety. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This diagram shows the connection relationship between the mounting base, rotating frame, positioning suction cup, and spring of this utility model.

[0021] Figure 3 This is a schematic diagram showing the working relationship between the rotating frame, motor, worm gear, and worm wheel of this utility model.

[0022] Figure 4 This is an exploded view of the workbench, air curtain frame, and air guide plate of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 100-Model aircraft shell, 1-Workbench, 101-Control panel, 2-Support column, 21-Foot pad, 3-Spraying chamber, 4-Cover plate, 41-Handle, 5-Spraying pipe, 51-Spray nozzle, 6-Adsorption module, 61-Mounting base, 62-Rotating frame, 63-Positioning suction cup, 64-Spring, 65-Negative pressure pipe, 7-Drive component, 71-Motor, 72-Worm gear, 73-Worm wheel, 8-Washing component, 81-Washing pipe, 82-Water supply pipe, 9-Air curtain component, 91-Air curtain frame, 92-Air inlet pipe, 93-Exhaust vent, 94-Air guide plate, 10-Drainage plate, 11-Filter screen. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] A uniform coating device for model aircraft shells, such as Figures 1-4 As shown, the system includes a workbench 1, with support columns 2 fixedly installed at the four corners of its bottom surface; it also includes a spraying chamber 3 and adsorption modules 6. The spraying chamber 3 is fixedly installed on the top of the workbench 1, and a discharge port is opened on the side wall of the spraying chamber 3. A spraying pipe 5 is fixedly installed on the top of the spraying chamber 3, with one end of the spraying pipe 5 connected to a spraying power pump. Multiple nozzles 51 are evenly spaced downwards on the spraying pipe 5. A recessed spraying groove is opened in the middle of the workbench 1, and two adsorption modules 6 are installed in the spraying groove of the workbench 1. The adsorption modules 6 are used to adsorb the model aircraft shell 100 to be sprayed. The adsorption module 6 includes a mounting base 61, a rotating frame 62, a positioning suction cup 63, a spring 64, and a negative pressure pipe 65. The spray tank bottom plate of the workbench 1 is fixedly installed on the drive component 7 and the mounting base 61. The top two sides of the mounting base 61 are symmetrically connected to the rotating frame 62. The positioning suction cup 63 is slidably arranged on the rotating frame 62. The spring 64 is arranged between the rotating frame 62 and the positioning suction cup 63. The workbench 1 is provided with a negative pressure pipe 65. One end of the negative pressure pipe 65 is connected to a suction pump. The negative pressure pipe 65 is connected to each positioning suction cup 63. The drive component 7 for driving the rotating frame 62 is provided on the mounting base 61. The spray tank bottom plate of the workbench 1 is inclined. The top of the spray tank bottom plate is provided with a rinsing component 8 for rinsing the spray paint. The workbench 1 is provided with a control panel 101 for controlling the entire spraying device.

[0026] like Figure 2 and Figure 3As shown, the drive component 7 consists of a motor 71, a worm 72, and a worm wheel 73. The motor 71 is fixedly mounted on the mounting base 61, the worm 72 is fixedly connected to the output shaft of the motor 71, and the worm wheel 73 is fixedly mounted on the rotating shaft of the rotating frame 62. The worm 72 and the worm wheel 73 mesh with each other.

[0027] like Figure 1 and Figure 2 As shown, the bottom of the support column 2 is provided with foot pads 21, which are used to enhance the stability of the workbench 1.

[0028] like Figure 1 As shown, a cover plate 4 is hinged to the discharge port on the side wall of the spray chamber 3. The cover plate 4 is used to seal and close the discharge port of the spray chamber 3. A handle 41 is provided on the outer wall of the cover plate 4.

[0029] When using the spraying device to spray the model aircraft shell 100, first open the cover plate 4 on the material discharge port on the side wall of the spraying chamber 3, and send the model aircraft shell 100 to be sprayed into the spraying tank in the middle of the workbench 1 through the material discharge port. Then operate the control panel 101 to activate the adsorption module 6: first start the drive component 7, the motor 71 drives the worm gear 72 to rotate, and the worm gear 72 then engages with and drives the worm wheel 73 on the rotating frame 62 shaft, so that the rotating frames 62 on both sides of the top of the mounting base 61 rotate synchronously, thereby adjusting the spatial angle and position of the positioning suction cup 63 on the rotating frame 62, and cooperating with the mounting base 6 The spring 64 between 1 and the rotating frame 62 allows the positioning suction cup 63 to adaptively and tightly fit the inner surface of various irregularly shaped model aircraft shells 100. Then, the negative pressure pipe 65 of the external suction pump provides suction force to all positioning suction cups 63, thereby firmly positioning the model aircraft shell 100 in the preset spraying position. After the model aircraft shell 100 is fixed, the cover plate 4 is closed and the spraying program is started. The external spraying power pump pumps the paint into the spraying pipe 5 at the top of the spraying chamber 3. Finally, multiple nozzles 51 evenly arranged with the bottom of the spraying pipe 5 facing downwards spray the model aircraft shell 100.

[0030] like Figure 2 and Figure 4 As shown, the rinsing component 8 includes a rinsing pipe 81 and a water supply pipe 82. The rinsing pipe 81 is horizontally fixed on the top of the bottom plate of the spray tank of the workbench 1. The water nozzle of the rinsing pipe 81 is parallel to the bottom plate of the spray tank. One end of the rinsing pipe 81 is connected to the water supply pipe 82.

[0031] like Figure 2 and Figure 4 As shown, an air curtain component 9 is provided on the top of the spray tank of the workbench 1. The air curtain component 9 includes an air curtain frame 91 and an air inlet pipe 92. An annular air curtain frame 91 is fixedly provided at the top edge of the spray tank. The air inlet pipe 92 is connected to the top of the air curtain frame 91. The air curtain frame 91 is used to generate an air curtain at the edge of the spray tank to prevent the scattered paint from adhering to the side wall of the spray tank.

[0032] like Figure 4 As shown, the top plate of the air curtain frame 91 is an inwardly inclined annular structure, and multiple exhaust ports 93 are evenly spaced on the inclined frame plate of the air curtain frame 91; air guide plates 94 are fixedly installed at intervals on the top frame plate of the air curtain frame 91. The air guide plates 94 are used to guide the airflow downward to the spray tank of the workbench 1, so that the paint scattered during the spraying process can be concentrated and fall onto the bottom plate of the spray tank.

[0033] like Figure 4 As shown, the bottom of the spray tank bottom plate of the workbench 1 has an outlet, and a drainage plate 10 is inclinedly installed at the outlet of the spray tank. The drainage plate 10 is used to drain the mixture of water and paint.

[0034] like Figure 4 As shown, a filter screen 11 is installed at the outlet of the spray tank near the drainage plate 10. The filter screen 11 is used to intercept impurities brought in during the rinsing process, while allowing the paint liquid to pass through, which facilitates the subsequent recycling of the paint.

[0035] During the spraying process, to maintain the cleanliness of the equipment and achieve paint recovery, the air curtain 9 installed at the top of the spray tank starts working. Airflow enters the annular air curtain frame 91 from the air inlet pipe 92, and the airflow is blown downward through multiple exhaust ports 93 on the air curtain frame 91. At the same time, guided by the air guide plate 94, a downward air curtain is formed at the edge of the spray tank. This air curtain can effectively prevent paint scattered during spraying from adhering to the side wall of the spray tank and blow the paint towards the bottom plate of the spray tank. Simultaneously, the flushing device 8 installed at the top of the inclined bottom plate of the spray tank is activated, and the water supply pipe 82 flushes the water. Water is supplied through pipe 81, and the rinsing pipe 81 sprays water evenly through multiple nozzles, forming a flowing water curtain on the bottom plate of the spray tank. This water curtain carries away the paint scattered on the bottom plate of the spray tank, preventing accumulation. After the paint and water flow together, the paint flows to the outlet under the guidance of the inclined bottom plate of the spray tank. When the mixture is discharged, it passes through the filter screen 11, which intercepts impurities in the mixture. The filtered paint liquid is then discharged for secondary recycling. After the entire spraying operation is completed, the adsorption module 6 is turned off, and the cover plate 4 is opened to remove the model aircraft shell 100 that has been sprayed in the spraying chamber 3.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A uniform spraying device for model aircraft shell, comprising a workbench (1), wherein support columns (2) are fixedly provided at the four corners of the bottom surface of the workbench (1). Its characteristics are, It also includes a spraying chamber (3) and an adsorption module (6). The spraying chamber (3) is installed on the top of the workbench (1). A spraying pipe (5) is fixed on the top of the spraying chamber (3). One end of the spraying pipe (5) is connected to a spraying power pump. Multiple nozzles (51) are evenly spaced on the spraying pipe (5). A recessed spraying groove is opened in the middle of the workbench (1). No less than two adsorption modules (6) are provided in the spraying groove of the workbench (1). The adsorption module (6) includes a mounting base (61), a rotating frame (62), a positioning suction cup (63), a spring (64), a negative pressure pipe (65), and a driving component (7). The mounting base (61) is fixedly installed on the bottom plate of the spray tank of the workbench (1). The rotating frame (62) is symmetrically rotated and connected to both sides of the top of the mounting base (61). The positioning suction cup (63) is slidably mounted on the rotating frame (62). A spring (64) is provided between the rotating frame (62) and the positioning suction cup (63). The workbench (1) is provided with a negative pressure pipe (65). One end of the negative pressure pipe (65) is connected to a suction pump. The negative pressure pipe (65) is connected to each positioning suction cup (63). The mounting base (61) is provided with a driving component (7) to drive the rotating frame (62). The bottom plate of the spray tank of the workbench (1) is inclined, and the top of the bottom plate of the spray tank is provided with a rinsing component (8). The workbench (1) is provided with a control panel (101) for controlling the entire spraying device.

2. The uniform coating device for model aircraft shells according to claim 1, characterized in that, The drive component (7) consists of a motor (71), a worm (72) and a worm wheel (73). The motor (71) is fixedly mounted on the mounting base (61). The worm (72) is fixedly connected to the output shaft of the motor (71). The worm wheel (73) is fixedly mounted on the rotating shaft of the rotating frame (62). The worm (72) and the worm wheel (73) mesh with each other.

3. The uniform coating device for model aircraft shells according to claim 1, characterized in that, The rinsing component (8) includes a rinsing pipe (81) and a water supply pipe (82). The rinsing pipe (81) is horizontally fixed on the top of the bottom plate of the spray tank of the workbench (1). The water nozzle of the rinsing pipe (81) is parallel to the bottom plate of the spray tank. One end of the rinsing pipe (81) is connected to the water supply pipe (82).

4. A uniform coating device for model aircraft shells according to claim 1, characterized in that, The top of the spraying tank of the workbench (1) is provided with an air curtain component (9). The air curtain component (9) includes an air curtain frame (91) and an air inlet pipe (92). An annular air curtain frame (91) is fixedly provided at the top edge of the spraying tank. The top of the air curtain frame (91) is connected to the air inlet pipe (92). The air curtain frame (91) is used to generate an air curtain at the edge of the spraying tank.

5. A uniform coating device for model aircraft shells according to claim 4, characterized in that, The top plate of the air curtain frame (91) is an inwardly inclined annular structure, and multiple exhaust ports (93) are evenly spaced on the inclined frame plate of the air curtain frame (91).

6. A uniform coating device for model aircraft shells according to claim 5, characterized in that, The top frame plate of the air curtain frame (91) is fixedly provided with air guide plates (94) at intervals. The air guide plates (94) are used to guide the airflow downward to the spraying tank of the workbench (1).

7. A uniform coating device for model aircraft shells according to claim 1, characterized in that, The bottom of the support (2) is provided with a foot pad (21).

8. A uniform coating device for model aircraft shells according to claim 1, characterized in that, A cover plate (4) is hinged to the discharge port on the side wall of the spray chamber (3), and a handle (41) is provided on the outer wall of the cover plate (4).

9. A uniform coating device for model aircraft shells according to claim 1, characterized in that, The bottom of the spray tank bottom plate of the workbench (1) is provided with an outlet, and a drainage plate (10) is inclinedly provided at the outlet of the spray tank.

10. A uniform coating device for model aircraft shells according to claim 9, characterized in that, A filter screen (11) is installed at the outlet of the spray tank near the drainage plate (10).

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