Filtering device of automobile spraying system
By introducing a high-precision filtration device into the automotive painting system, foreign matter generated by wear is intercepted and cleaned, solving the problem of color mixing on the car body or bumper caused by clogging of the color change valve, thus improving production efficiency and painting quality.
Patent Information
- Application Number
- CN202520317440.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing automotive painting systems, foreign matter generated by bead wear can clog the color-changing valve, causing color mixing on the car body or bumper, which affects production efficiency and quality.
Design a filtration device for an automotive painting system, including a branch pipe receiving module, a paint transfer module, a filter screen, and a color-changing valve. The device uses a high-precision filter screen to intercept foreign objects and uses compressed air to backflush and clean the pipeline, ensuring pipeline cleanliness.
It effectively solved the problems of poor coating quality and color mixing on the exterior surface of the car body, improved production efficiency and quality, avoided clogging of the color change valve, and ensured the stability of the coating process.
Smart Images

Figure CN223902124U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the automobile spraying technical field especially relates to a filter device of automobile spraying system. BACKGROUND
[0002] In the process of realizing the utility model, the inventor finds that the prior art at least has the following problems:
[0003] At present, most of the small color production of automobile coating factory and bumper coating workshop uses the pearl bead paint supply system, but in the process of use, the foreign matter caused by the wear of pearl bead often blocks the color changing valve group, which causes the valve group to close tightly, and leads to the color mixing of the sprayed other car body and bumper during color changing production, and finally stops the line maintenance equipment; It seriously affects the production efficiency and quality, and causes great kinetic energy waste.
[0004] The foreign matter caused by the wear of pearl bead in the emission and receiving module cannot be handled, and is directly sprayed on the surface of the car body, which leads to poor quality; The existing design application easily leads to the blockage of color changing valve group; Thus, the car body color mixing is generated.
[0005] CN220111372U-A kind of pearl bead type quick color changing paint supply system manual spraying station's gas control device, discloses a kind of pearl bead type quick color changing paint supply system manual spraying station's gas control device, it includes installation box, tee quick plug, gas pipe, gas control valve and filling knob switch;Tee quick plug and gas control valve are all installed in installation box interior, filling knob switch is installed in the outside of installation box, also cannot solve the above technical problems. UTILITY MODEL CONTENTS
[0006] The technical problem to be solved by the utility model is to provide a filter device of automobile spraying system, solve the problem of poor spraying quality of the outer surface of car body, solve the problem of foreign matter caused by the wear of pearl bead, and solve the problem of car body or bumper color mixing caused by color changing valve blockage.
[0007] To solve the above technical problems, the utility model adopts the following technical scheme: a filter device of automobile spraying system has:
[0008] The branch pipe receiving module is connected with the paint pipe at the first end;
[0009] The paint adapter module is installed on the branch pipe receiving module;
[0010] The filter screen is installed in the paint adapter module;
[0011] The paint inlet pipe is connected with the paint adapter module at the first end;
[0012] The color changing valve is connected with the second end of the paint inlet pipe;
[0013] The oil return pipe is connected with the color changing valve.
[0014] The paint transfer module includes a sleeve, and the filter screen is installed inside the sleeve.
[0015] The filter screen is fitted with a sealing ring on its outer periphery, and the filter screen is sealed to the sleeve through the sealing ring.
[0016] The color-changing valve is provided with a first interface and a second interface. The first interface is connected to the oil return pipe, and the second interface is connected to the paint inlet pipe.
[0017] The color-changing valve is also provided with a third interface, which is connected to the main paint channel.
[0018] The end of the sleeve is provided with an external thread, and the sleeve is detachably connected to the branch pipe receiving module through the external thread.
[0019] One of the above technical solutions has the following advantages or beneficial effects: it solves the problem of poor coating quality on the exterior surface of the vehicle body, solves the problem of foreign matter caused by bead wear, and solves the problem of mixed colors on the vehicle body or bumper caused by blockage of the color-changing valve. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the filtration device of the automotive painting system provided in the embodiment of this utility model.
[0021] Figure 2 for Figure 1 A schematic diagram of the filtration device in an automotive painting system;
[0022] Figure 3 for Figure 1 A schematic diagram of the filtration device in an automotive painting system;
[0023] Figure 4 for Figure 1 A schematic diagram of the filtration device in an automotive painting system;
[0024] Figure 5 for Figure 1 A schematic diagram of the filtration device in an automotive painting system;
[0025] Figure 6 for Figure 1 A schematic diagram of the filtration device in an automotive painting system;
[0026] The markings in the above diagrams are as follows: 1. Branch pipe receiving module, 2. Paint transfer module, 21. Sleeve, 22. Filter screen, 23. Sealing ring, 3. Paint inlet pipe, 4. Color change valve, 41. First interface, 42. Second interface, 43. Third interface, 5. Oil return pipe. Detailed Implementation
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0028] Referring to Figures 1 to 6 A filter device of an automobile spraying system has: a branch pipe receiving module 1, a first end of which is connected with a paint pipe; a paint adapter module 2, which is installed on the branch pipe receiving module 1; a filter screen 22, which is installed in the paint adapter module 2; a paint inlet pipe 3, a first end of which is connected with the paint adapter module 2; a color changing valve 4, which is connected with a second end of the paint inlet pipe 3; and an oil return pipe 5, which is connected with the color changing valve 4. The filter device solves the problem of poor spraying quality of the outer surface of a vehicle body, solves the problem of foreign matter caused by bead wear, and solves the problem of color mixing of a vehicle body or a bumper caused by blockage of the color changing valve 4. Paint is delivered to the branch pipe receiving module 1, then passes through the paint adapter module 2, and is delivered to the color changing valve 4 through an oil inlet pipe. In production, the paint is delivered to a robot through a main passage oil pipe of the color changing valve 4, and then the robot completes spraying.
[0029] The filter device is integrated with the high-precision filter device (for example Figure 3 ) in the outlet adapter module of the bead branch pipe receiving station. Foreign matter intercepted by the filter device is cleaned by compressed air backflushing. The filter device is integrated in the outlet adapter module of the paint. The filter hole size is φ0.25 mm, and the filter device has an outer diameter of φ12 mm (for example Figure 6 ).
[0030] The paint adapter module 2 includes a sleeve 21, and the filter screen 22 is installed in the sleeve 21 to play a filtering role.
[0031] A sealing ring 23 is sleeved on the outer periphery of the filter screen 22, and the filter screen 22 is sealingly connected with the sleeve 21 through the sealing ring 23 to play a sealing connection role.
[0032] The color changing valve 4 is provided with a first interface 41 and a second interface 42. The first interface 41 is connected with the oil return pipe 5, and the second interface 42 is connected with the paint inlet pipe 3, and is respectively connected with different pipelines.
[0033] The color changing valve 4 is further provided with a third interface 43, and the third interface 43 is connected with a main passage of paint. Paint is delivered to the branch pipe receiving module 1, then passes through the paint adapter module 2, and is delivered to the color changing valve 4 through an oil inlet pipe. In production, the paint is delivered to a robot through a main passage oil pipe of the color changing valve 4, and then the robot completes spraying.
[0034] By integrating the high-precision filtering device into the switching module of the branch pipe receiving module 1, foreign matters generated in the friction process of the beads are effectively intercepted by the switching module, and the branch pipe end is used to clean the foreign matters by back blowing with compressed air, so that the cleanliness of the pipeline is ensured; the four groups of color changing valves 4 do not generate foreign matters, the valve groups are tightly closed, the occurrence of the stop line phenomenon can be effectively controlled, and the quality of the sprayed outer surface and the color mixing problem of the bumper are completely solved; the production efficiency and quality are efficiently improved.
[0035] The end of the sleeve 21 is provided with external threads, and the sleeve 21 is detachably connected with the branch pipe receiving module 1 through the external threads, so as to facilitate disassembly and cleaning or replacement.
[0036] After the above structure is adopted, the problems of poor spraying quality of the outer surface of the vehicle body, foreign matters generated by bead wear and color mixing of the vehicle body or bumper caused by color changing valve blockage are solved.
[0037] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "threading" and the like should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or can be integrated; they can be mechanically connected, or can be electrically connected; they can be directly connected, or can be indirectly connected through an intermediate medium; they can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
[0039] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A filtration device for an automotive painting system, characterized in that, The utility model relates to a paint supply device, which comprises: a branch pipe receiving module, a first end of which is connected with a paint pipe; a paint adapter module, which is installed on the branch pipe receiving module; a filter screen, which is installed in the paint adapter module; a paint inlet pipe, a first end of which is connected with the paint adapter module; a color changing valve, which is connected with a second end of the paint inlet pipe; a paint return pipe, which is connected with the color changing valve.
2. The filtration device for an automotive painting system according to claim 1, wherein The paint adapter module comprises a sleeve, and the filter screen is installed in the sleeve.
3. The filtration device for an automotive painting system according to claim 2, wherein A sealing ring is sleeved on an outer periphery of the filter screen, and the filter screen is in sealed connection with the sleeve through the sealing ring.
4. The filtration device for an automotive painting system according to claim 3, wherein The color changing valve is provided with a first interface and a second interface, the first interface is connected with the paint return pipe, and the second interface is connected with the paint inlet pipe.
5. The filtration device for an automotive painting system according to claim 4, wherein The color changing valve is further provided with a third interface, and the third interface is connected with a main paint channel.
6. The filtration device for an automotive painting system according to claim 5, wherein An end of the sleeve is provided with external threads, and the sleeve is in detachable connection with the branch pipe receiving module through the external threads.