Paint spraying equipment for metal product machining

By using an adaptive nozzle assembly and drive motor system, the problem of inconsistent distance between the nozzle and uneven areas on the surface of the metal product was solved, thus achieving uniform spraying.

CN223915729UActive Publication Date: 2026-02-17SUZHOU KANGMEIDA PHOTOGRAPHY BACKGROUND CO LTD
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Patent Information

Application Number
CN202520129422.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-17
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing nozzle assemblies struggle to maintain a consistent distance between nozzles of different heights and uneven metal surfaces, resulting in inconsistent coating density.

Method used

An adaptive nozzle assembly is adopted, including a nozzle plate, a linkage frame, and a spring positioning ring. The spring positioning ring keeps the nozzle at the same distance from the uneven surface of the metal product, and the lateral movement of the nozzle is achieved by the telescopic rod and the drive motor to ensure uniform spraying.

Benefits of technology

It improves the uniformity of spraying, ensuring that the spraying density is consistent with the uneven surface of the metal product, and achieves a more uniform painting effect.

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Abstract

The utility model belongs to the technical field of paint spraying processing, and discloses paint spraying equipment for metal product processing, which comprises a base, a spraying frame is fixedly mounted at the top of the base, a left self-adaptive spray head assembly and a right self-adaptive spray head assembly are arranged in the spraying frame, and a rotating seat is arranged at the top of the base. The self-adaptive spray head assemblies are located on the left side and the right side of the upper portion of the rotating base, a telescopic rod is installed at the top of an inner cavity of the spray mounting frame, and a top spray plate is fixedly connected to the bottom of the movable end of the telescopic rod. The self-adaptive spray head assembly is composed of a spray head plate, a linkage frame and a plurality of spray nozzles. Due to the arrangement of the spring positioning ring, under the cooperation of the spray head plate, the spray mounting frame and the self-adaptive spray head assembly can push the multiple nozzles to be close to a metal product at the same time, and then the nozzles move transversely under the low connection effect of the nozzles on the two sides and the metal product; and the distances between the nozzles on the nozzle plate and the metal product with the uneven surface reach the same state, so that the paint spraying uniformity is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of spray painting technology, specifically a spray painting equipment for metal product processing. Background Technology

[0002] During the processing of metal products, paint is sprayed onto the outer surface to prevent corrosion and rust. This painting process requires spray painting equipment, which uses a pump to deliver paint from a paint bucket to a nozzle via a conduit, and then sprays the paint onto the surface of the metal product. However, because cylindrical or columnar metal products have many surrounding structures on their outer surface, the surface is uneven. Existing nozzle assemblies are simply fitted together according to the height and distance of the metal product, making it difficult to maintain a consistent distance between nozzles of different heights and the uneven surface. Practical experience shows that the greater the distance between the nozzle and the metal product, the lower the spray density. This results in different spray thicknesses from different nozzles, leading to uneven spraying. Therefore, it is necessary to develop a new type of spray painting equipment for metal product processing to address the shortcomings of existing technologies. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides a painting equipment for metal product processing, which has the advantage of more uniform spraying.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a painting equipment for metal product processing, comprising a base, a spray frame fixedly installed on the top of the base, two adaptive nozzle assemblies arranged inside the spray frame, a rotating seat arranged on the top of the base, the adaptive nozzle assemblies located on the left and right sides above the rotating seat, a telescopic rod installed on the top of the inner cavity of the spray frame, and a top spray plate fixedly connected to the bottom of the movable end of the telescopic rod;

[0005] The adaptive nozzle assembly consists of a nozzle plate, a linkage frame, and several nozzles. The nozzles are movably fitted inside the nozzle plate. Several evenly distributed spring positioning rings are fixedly fitted on the outer surface of the nozzles and the inside of the nozzle plate. The spring positioning rings between the outer surface of the nozzles and the inner wall of the nozzle plate are alternately distributed and tightly fitted. One end of the linkage frame is fixedly connected to the nozzle plate, and the other end of the linkage frame is fixedly connected to the spray frame.

[0006] Preferably, the spraying frame includes a drive frame fixedly installed on the top of the base. The drive frame has a limiting groove inside. One side of the limiting groove extends to the outside of the drive frame near the adaptive nozzle assembly. The limiting groove has two upper and lower limiting sliders slidably engaged inside. One end of the limiting slider passes through the limiting groove and extends to the outside of the drive frame near the adaptive nozzle assembly.

[0007] Preferably, the linkage frame includes four drive rods arranged between the drive frame and the nozzle plate, one vertically and one horizontally. Each end of the drive rod is movably connected to a hinge, and the two ends of the drive rod are fixedly connected to the limiting slider and the nozzle plate respectively through the hinge.

[0008] Preferably, one end of the nozzle passes through the nozzle plate and extends above the rotating seat, and the other end of the nozzle passes through the nozzle plate and extends between the nozzle plate and the drive frame and is fixedly connected with a limiting ring, wherein the outer diameter of the limiting ring is larger than the outer diameter of the nozzle.

[0009] Preferably, a feed pipe is fixedly connected to the side of the outer surface of the limiting ring away from the nozzle, and the feed pipe is interconnected with the interior of the nozzle through the limiting ring.

[0010] Preferably, a metal product is placed on top of the rotating base, and the top spray plate moves up and down with the telescopic rod and eventually approaches the top of the metal product.

[0011] Preferably, the two limiting sliders are internally threaded with linkage screws, the base is internally equipped with a drive motor, and the output shaft of the drive motor is connected to a long rod via a gear set. Both ends of the long rod are respectively connected to the bottom of the two linkage screws via bevel gear sets.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Due to the spring positioning ring, this invention, in conjunction with the nozzle plate, enables the spray frame and adaptive nozzle assembly to push several nozzles simultaneously close to the metal product. Then, under the low contact action between the nozzles on both sides and the metal product, the nozzles move laterally, thereby making the distance between the several nozzles on the nozzle plate and the uneven surface of the metal product the same, thus effectively improving the uniformity of paint spraying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the adaptive nozzle assembly of this utility model;

[0016] Figure 3 for Figure 2A magnified view of a portion of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the limiting slider of this utility model.

[0018] In the diagram: 1. Base; 2. Spraying frame; 21. Drive frame; 22. Limiting slide; 23. Limiting slider; 24. Linkage screw; 3. Adaptive nozzle assembly; 31. Nozzle plate; 32. Feed pipe; 33. Linkage frame; 331. Drive rod; 332. Hinge; 34. Nozzle; 35. Spring positioning ring; 36. Limiting ring; 4. Rotary seat; 5. Telescopic rod; 6. Top spray plate. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 4 As shown, this utility model provides a painting equipment for metal product processing, including a base 1, a spray frame 2 fixedly installed on the top of the base 1, two adaptive nozzle assemblies 3 arranged inside the spray frame 2, a rotating seat 4 arranged on the top of the base 1, the adaptive nozzle assemblies 3 located on the left and right sides above the rotating seat 4, a telescopic rod 5 installed on the top of the inner cavity of the spray frame 2, and a top spray plate 6 fixedly connected to the bottom of the movable end of the telescopic rod 5.

[0021] The adaptive nozzle assembly 3 consists of a nozzle plate 31, a linkage frame 33, and several nozzles 34. The nozzles 34 are movably fitted inside the nozzle plate 31. Several evenly distributed spring positioning rings 35 are fixedly fitted on the outer surface of the nozzles 34 and the inside of the nozzle plate 31. The spring positioning rings 35 between the outer surface of the nozzles 34 and the inner wall of the nozzle plate 31 are alternately distributed and tightly fitted. One end of the linkage frame 33 is fixedly connected to the nozzle plate 31, and the other end of the linkage frame 33 is fixedly connected to the spray frame 2. Due to the setting of the spring positioning rings 35, with the cooperation of the nozzle plate 31, the spray frame 2 and the adaptive nozzle assembly 3 can push the several nozzles 34 to approach the metal product at the same time. Then, under the low contact action between the nozzles 34 on both sides and the metal product, the nozzles 34 move laterally, so that the distance between the several nozzles 34 on the nozzle plate 31 and the uneven surface of the metal product is the same, thereby effectively improving the uniformity of the paint spraying.

[0022] like Figures 2 to 4As shown, the spraying frame 2 includes a drive frame 21 fixedly installed on the top of the base 1. The drive frame 21 has a limiting groove 22 inside. One side of the limiting groove 22 extends to the outside of the drive frame 21 near the adaptive nozzle assembly 3. The limiting groove 22 is slidably engaged with two upper and lower limiting sliders 23. One end of the limiting slider 23 passes through the limiting groove 22 and extends to the outside of the drive frame 21 near the adaptive nozzle assembly 3. Due to the setting of the limiting slider 23, it can be connected with the front and rear symmetrical linkage frame 33 with the cooperation of the limiting groove 22, ensuring that the front and rear linkage frame 33 will not affect the relative movement of the middle nozzle 34 and the nozzle plate 31.

[0023] like Figure 3 As shown, the linkage frame 33 includes four drive rods 331 positioned between the drive frame 21 and the nozzle plate 31, arranged vertically and horizontally. Each end of the drive rod 331 is movably connected to a hinge 332. The two ends of the drive rod 331 are fixedly connected to the limiting slider 23 and the nozzle plate 31 respectively through the hinge 332. Due to the arrangement of the four drive rods 331, under the action of their respective hinges 332, the drive rods 331 can be connected to the front and rear sides of the upper and lower limiting sliders 23, which helps to improve the stability of the drive frame 21 driving the nozzle plate 31 to move through the linkage frame 33.

[0024] like Figure 2 and Figure 3 As shown, one end of the nozzle 34 passes through the nozzle plate 31 and extends above the rotating seat 4, and the other end of the nozzle 34 passes through the nozzle plate 31 and extends between the nozzle plate 31 and the drive frame 21 and is fixedly connected to a limiting ring 36. The outer diameter of the limiting ring 36 is larger than the outer diameter of the nozzle 34. Due to the setting of the limiting ring 36, the nozzle 34 can be prevented from detaching from the nozzle plate 31.

[0025] like Figure 2 and Figure 3 As shown, a feed pipe 32 is fixedly connected to the side of the outer surface of the limiting ring 36 away from the nozzle 34. The feed pipe 32 is interconnected with the interior of the nozzle 34 through the limiting ring 36. The feed pipe 32 is supported by a flexible hose. The bending of the feed pipe 32 will not hinder the movement of the nozzle 34 along the inside of the nozzle plate 31 under the restriction of the spring positioning ring 35.

[0026] like Figure 1 As shown, a metal product is placed on top of the rotating base 4, and the top spray plate 6 moves up and down with the telescopic rod 5 and eventually approaches the top of the metal product.

[0027] like Figure 1 and Figure 2As shown, the two limit sliders 23 are internally threaded with linkage screws 24. The base 1 is equipped with a drive motor. The output shaft of the drive motor is connected to a long rod through a gear set. Both ends of the long rod are connected to the bottom of the two linkage screws 24 through bevel gear sets.

[0028] Working principle and usage process of this utility model:

[0029] The cylindrical metal product is placed on top of the rotating base 4. Then, the drive motor is turned on, and the bevel gears at both ends of the long rod machine simultaneously drive the two linkage screws 24 to rotate synchronously. Under the restriction of the drive frame 21 and the limiting slide groove 22, the upper and lower limiting sliders 23 are driven to move closer to each other. The linkage frame 33 pushes the nozzles 34, and finally the left and right spray head plates 31 move closer to each other. When the front ends of the nozzles 34 in the spray head plate 31 abut against the surface of the metal product, the setting of the spring positioning ring 35 allows the nozzles 34 on the spray head plate 31 to move in accordance with the unevenness of the surface of the metal product. Then, the drive motor moves in the opposite direction, and the spray frame 2, the linkage frame 33 and the spray head plate 31 drive the nozzles 34 away from the metal product. At the same time, the telescopic rod 5 moves and pushes the top spray plate 6 to a position close to the top of the metal product. Finally, the painting system is turned on, and the paint is sprayed onto the surface of the metal product through the feed pipe 32 and the nozzles 34 under the action of the paint pump.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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. A paint spraying apparatus for metal product processing comprising a base (1), characterised in that: The top of the base (1) is fixedly provided with a spraying frame (2), the inside of the spraying frame (2) is provided with two self-adapting nozzle assemblies (3), the top of the base (1) is provided with a rotating seat (4), the self-adapting nozzle assemblies (3) are located on the left and right sides above the rotating seat (4), the inside of the spraying frame (2) is provided with a telescopic rod (5), the bottom of the movable end of the telescopic rod (5) is fixedly connected with a top spraying plate (6). The self-adapting nozzle assembly (3) is composed of a nozzle plate (31), a linkage frame (33) and a plurality of nozzles (34), the plurality of nozzles (34) are movably sleeved in the inside of the nozzle plate (31), the outer surface of the nozzle (34) and the inside of the nozzle plate (31) are fixedly sleeved with a plurality of spring positioning rings (35) which are uniformly distributed, the spring positioning rings (35) between the outer surface of the nozzle (34) and the inner wall of the nozzle plate (31) are alternately distributed and closely fitted; one end of the linkage frame (33) is fixedly connected with the nozzle plate (31), the other end of the linkage frame (33) is fixedly connected with the spraying frame (2).

2. A paint spraying apparatus for metal fabrication as defined in claim 1, wherein: The spraying frame (2) comprises a driving frame (21) fixedly provided on the top of the base (1), the inside of the driving frame (21) is provided with a limiting sliding groove (22), one side of the limiting sliding groove (22) extends to the outside of the driving frame (21) near the self-adapting nozzle assembly (3), the inside of the limiting sliding groove (22) is slidably connected with two limiting sliding blocks (23), one end of the limiting sliding block (23) penetrates through the limiting sliding groove (22) and extends to the outside of the driving frame (21) near the self-adapting nozzle assembly (3).

3. A paint spraying apparatus for metal fabrication as defined in claim 2 wherein: The linkage frame (33) comprises four driving rods (331) arranged between the driving frame (21) and the nozzle plate (31), the two ends of the driving rod (331) are movably connected with a hinge (332), the two ends of the driving rod (331) are fixedly connected with the limiting sliding block (23) and the nozzle plate (31) through the hinge (332).

4. A paint spraying apparatus for metal fabrication as defined in claim 2 wherein: One end of the nozzle (34) penetrates through the nozzle plate (31) and extends above the rotating seat (4), the other end of the nozzle (34) penetrates through the nozzle plate (31) and extends between the nozzle plate (31) and the driving frame (21) and is fixedly connected with a limiting ring (36), the outer diameter of the limiting ring (36) is larger than the outer diameter of the nozzle (34).

5. A paint spraying apparatus for metal fabrication as defined in claim 4 wherein: The outer surface of the limiting ring (36) is fixedly connected with a feeding pipe (32) away from the nozzle (34), the inside of the feeding pipe (32) is in communication with the inside of the nozzle (34) through the limiting ring (36).

6. A paint spraying apparatus for metal fabrication as defined in claim 1 wherein: The top of the rotating seat (4) is placed with a metal product, the top spraying plate (6) moves up and down with the telescopic rod (5) and finally approaches above the metal product.

7. A paint spraying apparatus for metal fabrication as defined in claim 2 wherein: The inside of the two limiting sliding blocks (23) is threadedly sleeved with a linkage lead screw (24), the inside of the base (1) is provided with a driving motor, the output shaft of the driving motor is drivingly connected with a long rod through a gear set, the two ends of the long rod are drivingly connected with the bottom of the two linkage lead screws (24) through bevel gear sets.