Low film thickness high gloss paint spray gun for aluminum alloy wheel hub

Abstract

The utility model relates to paint spraying head technical field, concretely relates to low film thickness high gloss paint spraying head for aluminium alloy wheel hub spraying, it includes spray head and paint inlet pipe, spray head and paint inlet pipe outer wall fixed connection have connecting support, flow regulating assembly, flow regulating assembly includes two sealing bearings fixedly connected in spray head and paint inlet pipe outer wall, two sealing bearing outer ring fixedly connected with adjusting pipe, the fixedly connected with rotary valve plate of adjusting pipe inner wall, paint inlet pipe inner wall fixedly connected with fixed valve plate. The utility model can realize the stepless accurate regulation of spray head paint flow, avoid the situation that the film thickness is uneven when spraying, ensure the spraying quality of aluminium alloy wheel hub, and can conveniently clean the paint residue remaining at the nozzle of spray head, be favorable to keeping the degree of cleanness of nozzle of spray head, guarantee the spraying fluency of spray head.

Description

Technical Field

[0001] This utility model relates to the field of paint spray head technology, specifically to a low film thickness, high gloss paint spray head for aluminum alloy wheel hub spraying. Background Technology

[0002] Aluminum alloy wheels are automobile wheels made from aluminum alloy through processes such as casting and forging. Compared with traditional steel wheels, they have advantages such as light weight, good heat dissipation, and beautiful appearance. They can improve vehicle handling and fuel economy. Aluminum alloy wheel coating is a process of covering its surface with a special coating. It can not only enhance the appearance and texture through different colors and glosses, but also form a protective film to effectively resist corrosion, wear and ultraviolet erosion, and extend the service life of the wheel.

[0003] Existing technologies often have the following problems when used:

[0004] The paint nozzles used for aluminum alloy wheel painting are not precise and convenient enough in terms of flow rate adjustment, making it difficult to achieve stepless adjustment of paint spray volume. This can easily lead to uneven film thickness during spraying, affecting the coating quality of the wheel. In addition, after prolonged use, solidified paint residue can easily remain at the nozzle. If not cleaned in time, this can cause the paint to spray out poorly, affecting the smoothness of the paint spraying. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a low-film-thickness, high-gloss paint nozzle for aluminum alloy wheel hub spraying. It effectively solves the problems of insufficiently precise and convenient flow adjustment, difficulty in achieving stepless adjustment, which affects the spraying quality, and the easy retention of solidified paint residue in the nozzle after long-term use, leading to poor spraying.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a low-film-thickness, high-gloss paint spray nozzle for aluminum alloy wheel hub spraying, comprising:

[0008] The nozzle and the paint inlet pipe are fixedly connected to the outer peripheral wall of the paint inlet pipe by a connecting bracket;

[0009] A flow regulating assembly includes two sealed bearings fixedly connected to the nozzle and the outer peripheral wall of the paint inlet pipe. An regulating pipe is fixedly connected to the outer ring of the two sealed bearings. A rotary valve plate is fixedly connected to the inner wall of the regulating pipe. A fixed valve plate is fixedly connected to the inner wall of the paint inlet pipe. Several valve holes are opened on both the fixed valve plate and the rotary valve plate. An regulating drive component is fixedly connected to the outer peripheral wall of the paint inlet pipe.

[0010] The nozzle cleaning assembly is fixedly connected to the outer wall of the connecting bracket.

[0011] Furthermore, the adjustment drive component includes an annular bracket fixedly connected to the outer peripheral wall of the paint inlet pipe, a small motor is fixedly installed inside the annular bracket, a gear is fixedly connected to the output end of the small motor, and a gear ring is fixedly connected to the outer peripheral wall of the adjustment pipe, with the gear meshing with the gear ring.

[0012] Furthermore, the nozzle cleaning assembly includes a fixed bracket fixedly connected to the outer wall of the connecting bracket, a second small motor fixedly mounted on the fixed bracket, a small electric push rod fixedly connected to the output end of the second small motor, a straight plate fixedly connected to the telescopic end of the small electric push rod, and a cleaning brush fixedly connected to the outer wall of the straight plate.

[0013] Furthermore, several of the valve holes are arranged in a fan-shaped structure, and several valve holes on the rotating valve plate and the fixed valve plate are arranged in a ring-shaped equidistant array.

[0014] Furthermore, the cleaning brush is made of hard nylon material, and the cleaning brush selectively contacts and slides with the nozzle.

[0015] Furthermore, sealing gaskets are fixedly connected to the upper surface of the rotary valve plate and the lower surface of the fixed valve plate, and the two sealing gaskets slide in contact with each other.

[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0017] This invention includes a flow regulation component. By driving the regulating pipe to rotate, the rotating valve plate on the inner wall of the regulating pipe can rotate relative to the fixed valve plate on the inner wall of the paint inlet pipe. This changes the overlapping area of ​​several valve holes on the rotating valve plate and the fixed valve plate, i.e., the flow area of ​​the paint, thereby achieving stepless and precise adjustment of the paint flow rate of the spray head. This avoids uneven film thickness during spraying and ensures the spraying quality of the aluminum alloy wheel hub.

[0018] This invention includes a nozzle cleaning assembly. By controlling the retractable end of a small electric push rod, a straight plate is moved closer to the nozzle of the nozzle, so that the cleaning brush and the nozzle of the nozzle are on the same horizontal plane. At the same time, by controlling a second small motor, the straight plate and the cleaning brush are rotated, so that the cleaning brush can come into contact with and rub against the nozzle of the nozzle to clean the paint residue remaining at the nozzle of the nozzle. This helps to maintain the cleanliness of the nozzle of the nozzle and ensures the smoothness of the spraying. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the coating inlet pipe structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the regulating tube structure in this utility model;

[0023] Reference numerals: 1. Sprayer head; 2. Paint inlet pipe; 3. Connecting bracket; 4. Sealed bearing; 5. Adjusting pipe; 6. Rotary valve plate; 7. Fixed valve plate; 8. Valve hole; 9. Ring bracket; 10. Small motor No. 1; 11. Gear; 12. Gear ring; 13. Fixed bracket; 14. Small motor No. 2; 15. Small electric push rod; 16. Straight plate; 17. Cleaning brush. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example: Refer to Figures 1 to 3A low-film-thickness, high-gloss paint spray head for aluminum alloy wheel hub spraying includes: a spray head 1, a paint inlet pipe 2, and a flow regulating assembly. A connecting bracket 3 is fixedly connected to the outer peripheral wall of the spray head 1 and the paint inlet pipe 2. The flow regulating assembly includes two sealed bearings 4 fixedly connected to the outer peripheral walls of the spray head 1 and the paint inlet pipe 2. An regulating pipe 5 is fixedly connected to the outer ring of the two sealed bearings 4. A rotary valve plate 6 is fixedly connected to the inner wall of the regulating pipe 5. A fixed valve plate 7 is fixedly connected to the inner wall of the paint inlet pipe 2. Sealing gaskets are fixedly connected to the upper end face of the rotary valve plate 6 and the lower end face of the fixed valve plate 7. The two sealing gaskets slide in contact with each other. The fixed valve plate 7... The rotary valve plate 6 is provided with a number of valve holes 8, which are arranged in a fan-shaped structure. The valve holes 8 on the rotary valve plate 6 and the fixed valve plate 7 are arranged in a ring-shaped equidistant array. An adjustment drive component is fixedly connected to the outer peripheral wall of the paint inlet pipe 2. The adjustment drive component includes a ring bracket 9 fixedly connected to the outer peripheral wall of the paint inlet pipe 2. A small motor 10 is fixedly installed inside the ring bracket 9. The small motor 10 is of model R550. A gear 11 is fixedly connected to the output end of the small motor 10. A gear ring 12 is fixedly connected to the outer peripheral wall of the adjustment pipe 5. The gear 11 and the gear ring 12 mesh with each other.

[0027] A small motor 10 drives the gear 11 at its output end to rotate, and the meshing transmission between the gear 11 and the gear ring 12 drives the regulating pipe 5 to rotate. This allows the rotating valve plate 6 on the inner wall of the regulating pipe 5 to rotate relative to the fixed valve plate 7 on the inner wall of the paint inlet pipe 2, thereby changing the overlapping area of ​​several valve holes 8 on the rotating valve plate 6 and the fixed valve plate 7. When the overlapping area increases, the flow area of ​​the paint increases, and the paint flow rate of the nozzle 1 increases; when the overlapping area of ​​the valve holes decreases, the flow area of ​​the paint decreases, and the paint flow rate of the nozzle 1 decreases. This allows for stepless and precise adjustment of the paint flow rate of the nozzle 1, avoiding uneven film thickness during spraying and ensuring the spraying quality of the aluminum alloy wheel hub.

[0028] A nozzle cleaning assembly is fixedly connected to the outer wall of the connecting bracket 3. The nozzle cleaning assembly includes a fixed bracket 13 fixedly connected to the outer wall of the connecting bracket 3. A second small motor 14 is fixedly installed on the fixed bracket 13. The second small motor 14 is model YY80-220-25NA-80JB3GN. A small electric push rod 15 is fixedly connected to the output end of the second small motor 14. The small electric push rod 15 is model DATIEE-IMD3. A straight plate 16 is fixedly connected to the telescopic end of the small electric push rod 15. A cleaning brush 17 is fixedly connected to the outer wall of the straight plate 16. The cleaning brush 17 is made of hard nylon material and selectively contacts and slides with the nozzle 1.

[0029] By controlling the retractable end of the small electric push rod 15 to move forward, the straight plate 16 moves closer to the nozzle of the spray head 1, so that the cleaning brush 17 and the nozzle of the spray head 1 are on the same horizontal plane. At the same time, the second small motor 14 is controlled to run, and the straight plate 16 and the cleaning brush 17 are rotated by the second small motor 14, so that the cleaning brush 17 can rub against the nozzle of the spray head 1 to clean the paint residue remaining at the nozzle of the spray head 1, which helps to maintain the cleanliness of the nozzle of the spray head 1 and ensure the smoothness of the spraying of the spray head 1.

[0030] The working principle of this utility model is as follows:

[0031] In use, if precise adjustment of the paint output of nozzle 1 is required, the first small motor 10 can be started. The first small motor 10 drives the gear 11 at its output end to rotate. The meshing transmission between gear 11 and gear ring 12 drives the adjustment tube 5 to rotate. This allows the rotating valve plate 6 on the inner wall of the adjustment tube 5 to rotate relative to the fixed valve plate 7 on the inner wall of the paint inlet tube 2. This changes the overlapping area of ​​several valve holes 8 on the rotating valve plate 6 and the fixed valve plate 7. When the overlapping area increases, the flow area of ​​the paint increases, and the paint flow rate of nozzle 1 increases. When the overlapping area of ​​the valve holes decreases, the flow area of ​​the paint decreases, and the paint flow rate of nozzle 1 decreases, thus achieving stepless precise adjustment of the paint flow rate of nozzle 1.

[0032] After prolonged use of the spray head 1, the operation of the small electric push rod 15 can be controlled. By controlling the retraction of the extension end of the small electric push rod 15, the straight plate 16 is moved closer to the nozzle of the spray head 1, so that the cleaning brush 17 is on the same horizontal plane as the nozzle of the spray head 1. At the same time, the operation of the second small motor 14 is controlled, which drives the straight plate 16 and the cleaning brush 17 to rotate, so that the cleaning brush 17 can rub against the nozzle of the spray head 1 to clean the paint residue remaining at the nozzle of the spray head 1.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A low-film-thickness, high-gloss paint spray nozzle for aluminum alloy wheel hub spraying, characterized in that, include: The nozzle (1) and the paint inlet pipe (2) are fixedly connected to the outer peripheral wall of the nozzle (1) and the paint inlet pipe (2) by a connecting bracket (3); The flow regulating component includes two sealed bearings (4) fixedly connected to the outer peripheral wall of the nozzle (1) and the paint inlet pipe (2). The outer ring of the two sealed bearings (4) is fixedly connected to the regulating pipe (5). The inner wall of the regulating pipe (5) is fixedly connected to the rotary valve plate (6). The inner wall of the paint inlet pipe (2) is fixedly connected to the fixed valve plate (7). The fixed valve plate (7) and the rotary valve plate (6) are provided with several valve holes (8). The outer peripheral wall of the paint inlet pipe (2) is fixedly connected to the regulating drive component. The nozzle cleaning assembly is fixedly connected to the outer wall of the connecting bracket (3).

2. The low film thickness, high gloss coating spray head for aluminum alloy wheel hub spraying according to claim 1, characterized in that, The adjustment drive component includes an annular bracket (9) fixedly connected to the outer peripheral wall of the paint inlet pipe (2). A small motor (10) is fixedly installed inside the annular bracket (9). A gear (11) is fixedly connected to the output end of the small motor (10). A gear ring (12) is fixedly connected to the outer peripheral wall of the adjustment pipe (5). The gear (11) meshes with the gear ring (12).

3. The low film thickness, high gloss coating spray head for aluminum alloy wheel hub spraying according to claim 1, characterized in that, The nozzle cleaning assembly includes a fixed bracket (13) fixedly connected to the outer wall of the connecting bracket (3). A second small motor (14) is fixedly installed on the fixed bracket (13). A small electric push rod (15) is fixedly connected to the output end of the second small motor (14). A straight plate (16) is fixedly connected to the telescopic end of the small electric push rod (15). A cleaning brush (17) is fixedly connected to the outer wall of the straight plate (16).

4. The low film thickness, high gloss coating spray head for aluminum alloy wheel hub spraying according to claim 1, characterized in that, The valve holes (8) are arranged in a fan-shaped structure, and the valve holes (8) on the rotating valve plate (6) and the fixed valve plate (7) are arranged in a ring-shaped equidistant array.

5. The low film thickness, high gloss coating spray head for aluminum alloy wheel hub spraying according to claim 3, characterized in that, The cleaning brush (17) is made of hard nylon and selectively contacts and slides with the nozzle (1).

6. The low film thickness, high gloss coating spray head for aluminum alloy wheel hub spraying according to claim 1, characterized in that, The upper end face of the rotary valve plate (6) and the lower end face of the fixed valve plate (7) are both fixedly connected with sealing gaskets, and the two sealing gaskets are in close sliding fit.

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