Paint supply quick-connection convergence device

Abstract

The utility model relates to the technical field of automatic paint spraying equipment for coating, in particular to a paint supply quick-connection converging device which comprises a paint supply chamber and a spray gun for spraying paint, a paint feeding mechanism is arranged between the paint supply chamber and the spray gun, and a paint returning mechanism is further arranged between the paint supply chamber and the spray gun. The paint return mechanism comprises an oil return main pipeline, an oil return five-valve quick release module and an oil return branch pipe, the oil return port end of the spray gun is communicated with the oil return branch pipe, the other end of the oil return branch pipe is provided with the oil return five-valve quick release module, the oil outlet end of the oil return five-valve quick release module is connected with the oil return main pipeline, and the oil outlet end of the oil return five-valve quick release module is connected with the oil return main pipeline. And meanwhile, the other end of the oil return main pipeline is communicated with an oil inlet of the paint supply chamber. Through the modular design, the triple-locking quick-connection structure and the mixed flow prevention flow guide technology, the single valve can be quickly replaced, the residual quantity is extremely low, and the online cleaning function is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic painting equipment, specifically a quick-connection manifold for paint supply. Background Technology

[0002] Currently, existing paint manifolds have the following problems:

[0003] 1. Rigid connection: Patents such as CN201520382U use welding / threaded connections, and replacing a single path requires dismantling the entire pipeline;

[0004] 2. Inefficient maintenance: When a valve is damaged, all paint must be drained, resulting in an average downtime of more than 30 minutes;

[0005] 3. Mixing risk: When multiple paint streams converge, the residual amount at the traditional T-type interface can reach 15-20ml.

[0006] The aforementioned problems result in poor equipment flexibility and high maintenance costs, making it difficult to meet the high-efficiency requirements of modern coating production lines. Therefore, a bus system that can be quickly disassembled, prevents cross-contamination, and supports online maintenance is needed. Utility Model Content

[0007] The purpose of this utility model is to provide a quick-connection junction device for paint supply, so as to solve the problems mentioned in the background art, such as poor equipment flexibility, high maintenance costs, and difficulty in meeting the high-efficiency requirements of modern coating production lines.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect paint supply manifold, comprising a paint supply chamber and a spray gun for spraying paint, wherein a paint inlet mechanism is provided between the paint supply chamber and the spray gun for the paint inlet operation of the spray gun; a paint return mechanism is also provided between the paint supply chamber and the spray gun for the paint return operation of the spray gun; the paint return mechanism includes a main oil return pipe, a five-valve quick-release module for oil return, and a branch oil return pipe, wherein the oil return port end of the spray gun is connected to the branch oil return pipe, and the other end of the branch oil return pipe is equipped with the five-valve quick-release module for oil return, and the oil outlet end of the five-valve quick-release module for oil return is connected to the main oil return pipe, while the other end of the main oil return pipe is connected to the oil inlet of the paint supply chamber.

[0009] Preferably, the paint inlet mechanism includes a main oil inlet pipe, a five-valve quick-release module for oil inlet, and branch oil inlet pipes. The main oil inlet pipe is connected to the oil outlet pipe of the paint supply chamber, and the five-valve quick-release module for oil inlet is installed at the other end of the main oil inlet pipe. The five-valve quick-release module for oil inlet is connected to four sets of branch oil inlet pipes, and the other end of the branch oil inlet pipes is connected to the oil inlet of the spray gun.

[0010] Preferably, both the inlet five-valve quick-release module and the return five-valve quick-release module are composed of a main ball valve consisting of a manifold, a reducing inner sleeve, and a branch ball valve. The top of the manifold is connected to four reducing inner sleeves via four ISO standard quick-connect fittings.

[0011] Preferably, one end of the manifold is connected to a main ball valve via a standard quick-connect fitting, and one end of the main ball valve is connected to either the main inlet pipe or the main return pipe.

[0012] Preferably, the end of the variable diameter inner sleeve is connected to a branch ball valve, and the top of the branch ball valve is connected to the oil inlet branch pipe or the oil return branch pipe.

[0013] Preferably, the main oil inlet pipe and the variable diameter inner sleeve are set at a 45° angle to reduce fluid impact; the manifold pipe and the variable diameter inner sleeve and the main ball valve and the standard quick-connect fitting are connected and fixed with different irregular groove structures to achieve physical foolproofing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This quick-connect manifold for paint supply achieves rapid replacement of a single valve, extremely low residual amount, and online cleaning function through modular design, triple-locking quick-connect structure, and anti-mixing flow guiding technology; the maintenance efficiency of this utility model is improved by 15 times: the replacement time of a single valve is shortened from 30 minutes to 2 minutes; the residual amount of mixed flow is reduced to 0.5ml (3% of the traditional design), avoiding cross-contamination of colors; strong compatibility: it is compatible with DN15 / DN20 / DN25 standard interfaces, with a coverage rate of >90%; excellent sealing performance: no leakage after 1.6MPa pressure test, and a lifespan of ≥100,000 insertion and removal cycles. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the separated structure of this utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the structure of this utility model.

[0018] In the diagram: 1. Paint supply chamber; 2. Paint inlet mechanism; 3. Spray gun; 4. Paint return mechanism; 5. Main oil inlet pipe; 6. Oil inlet five-valve quick-release module; 7. Oil inlet branch pipe; 8. Main oil return pipe; 9. Oil return five-valve quick-release module; 10. Oil return branch pipe; 11. Manifold pipe; 12. Reducing inner sleeve; 13. Branch ball valve; 14. Main ball valve. 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] The structure of the quick-connector for paint supply provided by this utility model is as follows: Figure 1 as well as Figure 2 As shown, the device includes a paint supply chamber 1 and a spray gun 3 for spraying paint. A paint inlet mechanism 2 is provided between the paint supply chamber 1 and the spray gun 3. The paint inlet mechanism 2 is used for the oil inlet operation of the spray gun 3. The paint inlet mechanism 2 includes an oil inlet main pipe 5, an oil inlet five-valve quick-release module 6, and oil inlet branch pipes 7. The oil outlet pipe of the paint supply chamber 1 is connected to the oil inlet main pipe 5, and the other end of the oil inlet main pipe 5 is equipped with the oil inlet five-valve quick-release module 6. The oil inlet five-valve quick-release module 6 is connected to four sets of oil inlet branch pipes 7, and the other end of the oil inlet branch pipes 7 is connected to the oil inlet of the spray gun 3.

[0021] During implementation, the paint in the paint supply chamber 1 enters the oil inlet five-valve quick-release module 6 through the main oil inlet pipe 5, and then enters the respective spray guns 3 through the oil inlet branch pipe 7 for spraying.

[0022] Furthermore, such as Figure 1 as well as Figure 2 As shown, a paint return mechanism 4 is also provided between the paint supply chamber 1 and the spray gun 3. The paint return mechanism 4 is used for the oil return work inside the spray gun 3. The paint return mechanism 4 includes a main oil return pipe 8, a five-valve quick-release module 9 for oil return, and a branch pipe 10 for oil return. The oil return port end of the spray gun 3 is connected to the branch pipe 10 for oil return, and the other end of the branch pipe 10 for oil return is equipped with the five-valve quick-release module 9 for oil return. The oil outlet end of the five-valve quick-release module 9 for oil return is connected to the main oil return pipe 8 for oil return. At the same time, the other end of the main oil return pipe 8 is connected to the oil inlet of the paint supply chamber 1 for oil return.

[0023] During implementation, the paint in the spray gun 3 enters the return oil five-valve quick-release module 9 through the return oil branch pipe 10, and is then transported to the paint supply chamber 1 through the return oil main pipe 8.

[0024] This utility model adopts a 45° oblique angle confluence design: the outlet of the paint supply chamber 1 is at a 45° angle with the main pipeline to reduce fluid impact; at the same time, the main pipeline is equipped with a 60°±5° tapered guide shroud, and the surface is sprayed with a 20μm thick PEEK coating with a friction coefficient of <0.2 and a residual amount of <0.5ml.

[0025] Furthermore, such as Figure 2 as well as Figure 3 As shown, both the inlet five-valve quick-release module 6 and the return five-valve quick-release module 9 consist of a main ball valve 14 composed of a manifold 11, a reducing inner sleeve 12, and a branch ball valve 13. The top end of the manifold 11 is connected to four reducing inner sleeves 12 via four ISO 16059 standard quick-connect fittings. One end of the manifold 11 is connected to the main ball valve 14 via an ISO 16059 standard quick-connect fitting, and one end of the main ball valve 14 is connected to either the inlet main pipe 5 or the return main pipe 8. The end of the reducing inner sleeve 12 is connected to the branch ball valve 13, and the top end of the branch ball valve 13 is connected to either the inlet branch pipe 7 or the return branch pipe 10. The inlet main pipe 5 and the return main pipe 8 are both set at a 45° angle to reduce fluid impact. Different irregular groove structures are used for insertion and fixing between the manifold 11 and the reducing inner sleeve 12, and between the main ball valve 14 and the ISO 16059 standard quick-connect fittings to achieve physical foolproofing.

[0026] In this utility model, the four DN15 branch ball valves 13 and one DN25 main ball valve 14 in the five-valve quick-release module are connected in parallel via ISO16059 standard quick-connect couplings, and the valve body and pipeline are connected by V-type clamps (torque threshold 5N·m).

[0027] The five-valve quick-release module of this utility model adopts a triple locking mechanism: axial snap ring to prevent disengagement, radial O-ring to ensure sealing, and rotating positioning pin to achieve angle calibration. When disassembling, press the snap and rotate 30° to separate.

[0028] The five-valve quick-release module of this utility model adopts a triple locking mechanism to prevent misoperation: different diameter connectors adopt irregular groove structures (such as square groove for DN15 and hexagonal groove for DN25) to achieve physical error prevention.

[0029] After removing the main oil inlet pipe 5 and the main oil return pipe 8, this utility model can form a quick-connect manifold integrated cleaning pipeline through the oil inlet five-valve quick-release module 6, oil inlet branch pipe 7, spray gun 3, oil return branch pipe 10, and oil return five-valve quick-release module 9, which can support direct rinsing with high-pressure water gun.

[0030] This utility model enables quick replacement of single valves. When replacing a single valve, press the buckle and rotate 30° to pull out the valve body. The whole process takes less than 2 minutes. The manifold 11 in the five-valve quick-release module of this utility model adopts a segmented cavity design: the manifold cavity is divided into three outlet sections, which are spliced ​​by ISO 16059 standard quick-connect connectors. When disassembling, only the limit pin needs to be pulled out.

[0031] Working principle: First, the paint supply chamber 1 supplies paint to the spray gun 3 through the paint inlet mechanism 2, and the paint is sprayed out by the spray gun 3. When returning the paint, the paint in the spray gun 3 flows back to the paint supply chamber 1 through the paint return mechanism 4 for reuse.

[0032] Specifically, the paint in the paint supply chamber 1 enters the oil inlet five-valve quick-release module 6 through the main oil inlet pipe 5, and then enters the respective spray guns 3 through the oil inlet branch pipe 7 for spraying. When returning oil, the paint in the spray gun 3 enters the oil return five-valve quick-release module 9 through the oil return branch pipe 10, and then is transported to the paint supply chamber 1 through the main oil return pipe 8.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-connector for paint supply, comprising a paint supply chamber (1) and a spray gun (3) for spraying paint, characterized in that: A paint inlet mechanism (2) is provided between the paint supply chamber (1) and the spray gun (3), which is used for the oil inlet operation of the spray gun (3); a paint return mechanism (4) is also provided between the paint supply chamber (1) and the spray gun (3), which is used for the oil return operation inside the spray gun (3); the paint return mechanism (4) includes a main oil return pipe (8), a five-valve quick-release module (9) for oil return, and a branch pipe (10) for oil return. The oil return port end of the spray gun (3) is connected to the branch pipe (10), and the other end of the branch pipe (10) is equipped with the five-valve quick-release module (9), and the oil outlet end of the five-valve quick-release module (9) is connected to the main oil return pipe (8). At the same time, the other end of the main oil return pipe (8) is connected to the oil inlet of the paint supply chamber (1). The inlet is connected to the outlet; the paint inlet mechanism (2) includes an oil inlet main pipe (5), an oil inlet five-valve quick-release module (6) and an oil inlet branch pipe (7). The oil outlet pipe of the paint supply chamber (1) is connected to the oil inlet main pipe (5), and the other end of the oil inlet main pipe (5) is equipped with an oil inlet five-valve quick-release module (6). The oil inlet five-valve quick-release module (6) is connected to four sets of oil inlet branch pipes (7). The other end of the oil inlet branch pipe (7) is connected to the oil inlet of the spray gun (3). The oil inlet five-valve quick-release module (6) and the return oil five-valve quick-release module (9) are both composed of a main ball valve (14) consisting of a manifold (11), a variable diameter inner sleeve (12), and a branch ball valve (13). The top end of the manifold (11) is connected to four variable diameter inner sleeves (12) through four standard quick-connect fittings.

2. The quick-connector for paint supply according to claim 1, characterized in that: One end of the manifold (11) is connected to the main ball valve (14) via a standard quick-connect fitting, and one end of the main ball valve (14) is connected to the main inlet pipe (5) or the main return pipe (8).

3. The quick-connector for paint supply according to claim 2, characterized in that: The end of the variable diameter inner sleeve (12) is connected to a branch ball valve (13), and the top of the branch ball valve (13) is connected to the oil inlet branch pipe (7) or the oil return branch pipe (10).

4. The quick-connector for paint supply according to claim 3, characterized in that: The main oil inlet pipe (5) and the main ball valve (14) are both set at an angle of (45)° to reduce fluid impact; the manifold pipe (11) and the variable diameter inner sleeve (12) and the main ball valve (14) and the standard quick connector are connected and fixed with different irregular groove structures to achieve physical foolproofing.

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