Multi-oil-way paint changing, cleaning and spraying device
By designing a multi-oil paint replacement cleaning spraying device, using multiple paint supply systems and automatic circulation cleaning systems, the problems of waste and inefficiency of existing spraying equipment when changing colors are solved, and efficient and rapid paint color change and cost savings are achieved.
Patent Information
- Application Number
- CN202421514757.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing two-color spraying equipment wastes a lot of paint when changing colors, and the color change efficiency is low. The color change flushing pipeline is relatively difficult and takes a long time, which can easily cause color difference and lead to batch scrapping.
A multi-oil paint replacement cleaning and spraying device is designed, and at least three sets of paint supply systems are connected to the spray gun. The spray gun is equipped with an oil chamber and the spray channel. The cleaning system is connected to the spray gun to realize automatic circulation and rapid cleaning and color change.
Through the multi-oil design, efficient circulation and rapid color change of paint are achieved, which reduces paint waste, improves color change efficiency, avoids color difference, and significantly saves production costs.
Smart Images
Figure CN222901413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spraying equipment, in particular to a multi-oil-way paint-changing, cleaning and spraying device. Background Art
[0002] At present, when spraying aluminum alloy wheels, while requiring proficiency in spraying processes, there are usually two ways of spraying at present stage, namely manual spraying and automatic spraying. Some workers who cannot ensure the paint thickness of manual spraying need to proficiently master the instruments required for automatic spraying. Whether it is a manual spraying instrument or an automatic spraying instrument, the existing spraying instruments are generally two-color spraying instruments, that is, they have a two-color system. However, whether it is manual spraying or automatic spraying, the paint pipelines are very long. In this way, when changing colors during painting, the efficiency is low, a large amount of paint is wasted, and it is relatively difficult to flush the pipelines during color change, which takes a long time. If the pipelines are not flushed cleanly, color difference will occur during color-changing spraying, resulting in batch scrapping, and all previous production work will also go to waste.
[0003] The equipment currently used in our factory is the above-mentioned equipment. After calculation, if the existing equipment is not reformed, the number of line changes will increase by 1-2 times per day. About 12 liters of thinner are used for each line change, and about 5 liters of paint are wasted. The cost of each liter of paint and thinner is about 30 yuan. In this way, the cost of each paint change is about 30×17 = 510 yuan. Calculated according to reducing the paint change by one time per day, the monthly paint change cost is: 510×30 = 15300 yuan.
[0004] Therefore, it is necessary to reform the existing spraying instruments in the factory according to the defect problems of the above-mentioned equipment. Content of the Utility Model
[0005] The purpose of the utility model is to provide a multi-oil-way paint-changing, cleaning and spraying device to solve the problems of a large amount of paint waste and low color-changing efficiency when the existing two-color spraying instruments change colors.
[0006] To solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A multi-oil-way paint-changing, cleaning and spraying device includes a spray gun, a paint supply system and a cleaning system, and is characterized in that: there are at least three sets of the paint supply systems, the paint supply systems are all connected to the spray gun, an oil passage chamber corresponding to the paint supply system is arranged in the gun body of the spray gun, each oil passage chamber is respectively communicated with a spraying channel, and the cleaning system is also connected to the spray gun.
[0008] Since three paint supply systems are set up, three-color paints can now be prepared simultaneously. After starting the system after power-on, in the normal state, all three paint supply systems are in the automatic circulation state, circulating all the way to the color-changing valve in the spray gun, ready for spraying at any time. When starting the first-color spraying state, after the workpiece enters the identification system before entering the spray booth and after a specified number of pulses, when the hub is in place, the spray gun starts spraying the first color. At this time, the other two paint supply systems are always in the circulation state. The whole system is always in a dynamic state, the paint does not precipitate, and the pressure of the paint pipeline is controllable without bursting. When the spraying of the first color is completed, the paint supply system of the first color immediately switches to the circulation state, and then the cleaning and color-changing program is started. At this time, the solvent valve of the color-changing valve in the spray gun is opened, and the cleaning system supplies liquid to clean the nozzle. Generally, the cleaning can be completed within 5 seconds. After the cleaning is completed, the solvent valve is closed, and the valve of the second color is opened, so that the second-color paint circulating in the second-color paint supply system quickly fills the inner cavity of the spray gun, completing the whole cleaning and color-changing process. When starting the second-color spraying state, after the workpiece enters the identification system before entering the spray booth and after a specified number of pulses, the spray gun starts spraying the second color. The spraying stops when the hub leaves, and the second color switches to the circulation state. The spraying principle of the third color is the same as that of the second color. In addition, the fourth color can be quickly replaced. When replacing the fourth color, first, one of the three systems is cleaned with solvent, and then the paint of the fourth color is replaced and circulated in the cleaned paint supply system. All the above preparatory work is carried out while spraying any one of the other two colors, without affecting the production time. When the filling of the fourth color is completed, only the above cleaning and color-changing process needs to be repeated to carry out the spraying of the fourth color; in this solution, each spray gun corresponds to three paint supply systems. During the color-changing process, there is no need to clean the gear pump in the paint supply system, and the distance between the color-changing valve and the spray nozzle is very close, only a very short distance needs to be cleaned, and the color-changing is fast and extremely solvent-saving.
[0009] As a further preference of the present utility model, the paint supply system includes a paint tank, a paint diaphragm pump, and a gear pump. The paint tank is provided with a liquid return port and a liquid outlet. The liquid outlet of the paint tank is connected to the liquid inlet end of the paint diaphragm pump through a pipeline. The liquid outlet end of the paint diaphragm pump is connected to the gear pump through a pipeline. The liquid outlet end of the gear pump is connected to the spray gun through a pipeline. The spray gun is also connected to the liquid return port of the paint tank through a pipeline.
[0010] The paint diaphragm pump is a PD-40 type diaphragm pump of ASAHISUNAC Company in Japan. The paint flow output of this diaphragm pump is stable, with small pulsation. Even when the paint pressure regulating valve has a small discharge volume, the paint pressure can be guaranteed to be stable. The commutation mechanism is external, firm and durable, and easy to maintain.
[0011] As a further preference of the present utility model, the paint tank is also provided with a paint replenishment port.
[0012] It is convenient to replenish and replace the paint.
[0013] As a further preference of the present utility model, a pneumatic stirrer is further provided in the paint tank.
[0014] This can enhance the fluidity of the paint and prevent the paint from precipitating.
[0015] As a further preference of the present utility model, the cleaning system includes a cleaning thinner tank and a thinner diaphragm pump. The liquid outlet of the cleaning thinner tank is connected to the liquid inlet end of the thinner diaphragm pump through a pipeline, and the liquid outlet end of the thinner diaphragm pump is connected to the spray gun through a pipeline.
[0016] Compared with the prior art, the present utility model can at least achieve one of the following beneficial effects:
[0017] 1. In this way, the cleaning path is short during color change, and it is not easy to cause solvent waste. Since the remaining paint circulates in its respective system during the spraying process, the color change efficiency is also high, and the color change time is controlled within 25 seconds.
[0018] 2. The fourth color can also be quickly replaced. When replacing the fourth color, first, one of the three sets of systems needs to be cleaned with solvent, and then the paint of the fourth color is replaced and circulated in the cleaned paint supply system. All the above preparatory work is carried out while spraying any one of the other two colors, without affecting the production time. When the filling of the fourth color is completed, only the above cleaning and color change process needs to be repeated to spray the fourth color.
[0019] 3. Each cup or spray gun paint supply system is supplied with paint through an independent paint gear pump. The gear pump provided in this solution is a high-precision pump body and supporting design, so as to ensure uniform paint film.
[0020] 4. The paint is not easy to precipitate. Description of the Drawings
[0021] Figure 1 is a structural schematic diagram of the present utility model. Detailed Embodiments
[0022] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model usually described and shown in the drawings here can be arranged and designed in various different configurations.
[0023] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.
[0024] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.
[0025] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Specific Embodiment 1:
[0029] Figure 1 There is shown a multi-oil-way paint-changing, cleaning and spraying device, including a paint gun 1, a paint supply system 2 and a cleaning system 3. There are at least three or more sets of the paint supply system 2. The paint supply systems 2 are all connected to the paint gun 1. An oil passage chamber corresponding to the paint supply system 2 is provided in the gun body of the paint gun 1. Each oil passage chamber is respectively communicated with a spray passage. The cleaning system 3 is also connected to the paint gun 1.
[0030] Due to the setting of three paint supply systems, three-color paints can now be prepared simultaneously. After starting the system after power-on, under normal conditions, all three paint supply systems are in an automatic circulation state, continuously circulating to the color-changing valve in the spray gun, ready for spraying at any time. When starting the spraying state of the first color, after the workpiece enters the identification system before entering the spray booth and after a specified number of pulses, when the hub is in place, the spray gun starts spraying the first color. At this time, the other two paint supply systems are in a circulating state all the time. The whole system is always in a dynamic state, the paint does not precipitate, and the pressure of the paint pipeline is controllable and does not burst. When the spraying of the first color is completed, the paint supply system of the first color immediately switches to the circulating state, and then the cleaning and color-changing program is started. At this time, the solvent valve of the color-changing valve in the spray gun is opened, and the cleaning system supplies liquid to clean the nozzle. Generally, the cleaning can be completed within 5 seconds. After the cleaning is completed, the solvent valve is closed, and the valve of the second color is opened, so that the second-color paint circulating in the second-color paint supply system quickly fills the inner cavity of the spray gun, completing the whole cleaning and color-changing process. When starting the spraying state of the second color, after the workpiece enters the identification system before entering the spray booth and after a specified number of pulses, the spray gun starts spraying the second color. The spraying stops when the hub leaves, and the second color switches to the circulating state. The spraying principle of the third color is the same as that of the second color. In addition, the fourth color can be quickly changed. When changing the fourth color, first, one of the three systems is cleaned with solvent, and then the paint of the fourth color is replaced and circulated in the cleaned paint supply system. All the above preparatory work is carried out simultaneously while spraying any one of the other two colors, without affecting the production time. When the filling of the fourth color is completed, only the above cleaning and color-changing process needs to be repeated to carry out the spraying of the fourth color; in this solution, each spray gun corresponds to three paint supply systems. During the color-changing process, it is not necessary to clean the gear pump in the paint supply system, and the distance between the color-changing valve and the spray nozzle is very close, only a very short distance needs to be cleaned, and the color-changing is fast and extremely solvent-saving. Specific Embodiment 2:
[0032] This embodiment further describes the paint supply system 2 on the basis of Specific Embodiment 1. The paint supply system 2 includes a paint tank 21, a paint diaphragm pump 22, and a gear pump 23. The paint tank 21 is provided with a liquid return port and a liquid outlet. The liquid outlet of the paint tank 21 is connected to the inlet end of the paint diaphragm pump 22 through a pipeline. The outlet end of the paint diaphragm pump 22 is connected to the gear pump 23 through a pipeline. The outlet end of the gear pump 23 is connected to the spray gun 1 through a pipeline. The spray gun 1 is also connected to the liquid return port of the paint tank 21 through a pipeline.
[0033] The paint diaphragm pump is a PD-40 type diaphragm pump of ASAHISUNAC Company, Japan. The paint flow output of this diaphragm pump is stable, with small pulsation. Even when the paint pressure regulating valve has a small discharge volume, the paint pressure can be guaranteed to be stable. The commutation mechanism is external, firm and durable, and simple and convenient to maintain. Specific Embodiment 3:
[0035] This embodiment further describes the paint can 21 on the basis of Specific Embodiment 2. The paint can 21 is further provided with a paint replenishment port.
[0036] It is convenient to replenish and replace the paint. Specific Embodiment 4:
[0038] This embodiment further describes the paint can 21 on the basis of Specific Embodiment 2. An air-driven stirrer is further provided inside the paint can 21.
[0039] This can enhance the fluidity of the paint and prevent the paint from precipitating. Specific Embodiment 5:
[0041] This embodiment further describes the cleaning system 3 on the basis of Specific Embodiment 1. The cleaning system 3 includes a cleaning thinner tank 31 and a thinner diaphragm pump 32. The liquid outlet of the cleaning thinner tank 31 is connected to the liquid inlet end of the thinner diaphragm pump 32 through a pipeline, and the liquid outlet end of the thinner diaphragm pump 32 is connected to the spray gun 1 through a pipeline. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A multi-oil-circuit paint-changing, cleaning and spraying device, comprising a spray gun (1), a paint supply system (2) and a cleaning system (3), characterized in that: The paint supply system (2) has at least three sets, and the paint supply system (2) is connected to the spray gun (1). The spray gun (1) is provided with an oil passage chamber corresponding to the paint supply system (2) in the gun body, and each oil passage chamber is connected to a spraying channel respectively. The cleaning system (3) is also connected to the spray gun (1).
2. The multi-oil circuit paint changing, cleaning and spraying device according to claim 1 is characterized in that: The paint supply system (2) comprises a paint tank (21), a paint diaphragm pump (22) and a gear pump (23); the paint tank (21) is provided with a liquid return port and a liquid outlet; the liquid outlet of the paint tank (21) is connected to a liquid inlet of the paint diaphragm pump (22) via a pipeline; the liquid outlet of the paint diaphragm pump (22) is connected to the gear pump (23) via a pipeline; the liquid outlet of the gear pump (23) is connected to a spray gun (1) via a pipeline; and the spray gun (1) is also connected to the liquid return port of the paint tank (21) via a pipeline.
3. The multi-oil circuit paint changing, cleaning and spraying device according to claim 2 is characterized in that: The paint tank (21) is also provided with a paint replenishing port.
4. The multi-oil circuit paint changing, cleaning and spraying device according to claim 2 is characterized in that: A pneumatic stirrer is also provided in the coating tank (21).
5. The multi-oil circuit paint changing, cleaning and spraying device according to claim 1 is characterized in that: The cleaning system (3) comprises a cleaning thin material tank (31) and a thin material diaphragm pump (32); the liquid outlet of the cleaning thin material tank (31) is connected to the liquid inlet end of the thin material diaphragm pump (32) via a pipeline, and the liquid outlet end of the thin material diaphragm pump (32) is connected to the spray gun (1) via a pipeline.