A parallel cleaning module for a gear pump used in rapid color change spraying and cleaning

Abstract

The present invention discloses a parallel cleaning module for a gear pump for rapid cleaning during paint color change, which relates to the technical field of cleaning equipment and includes a color change valve, a paint pressure regulator, a gear pump, and an atomizer. The color change valve is connected to the paint pressure regulator, the gear pump is connected to the atomizer, and the parallel cleaning module is connected to the paint pressure regulator and the gear pump. The parallel cleaning module includes: a housing; a spool assembly, a module inlet joint, a module outlet joint, a DUMP return joint, and a solvent inlet joint. Among them, the module inlet joint is connected to the paint pressure regulator and the spool assembly, the module outlet joint is connected to the spool assembly and the gear pump, and the DUMP return joint and the solvent inlet joint are respectively connected to the spool assembly. In the present invention, the color change cleaning time can be saved, and synchronous separate cleaning of the color change valve and the paint pressure regulator, the gear pump and the atomizer can be achieved, so as to achieve the purpose of parallel cleaning, thereby saving the color change cleaning time and improving the color change cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a parallel cleaning module for a gear pump for rapid cleaning during spray painting color change. Background Art

[0002] During the use of the spray painting process equipment in an automobile factory, the color change valve, paint pressure regulator, gear pump, and atomizer of the spray painting process equipment work in series. The paint passes through the color change valve, is subjected to voltage stabilization treatment through the paint pressure regulator, then is metered by the gear pump, and finally is sprayed by the atomizer.

[0003] However, in the above connection method during color change cleaning, before spraying the next paint, the previous paint must be completely washed and the positions in the pipeline must be dried before the next paint can be filled. To clean the previous paint, cleaning solvent and cleaning air, the color change valve, paint pressure regulator, gear pump, and atomizer must be cleaned in series, thus increasing the cleaning time and reducing the efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a parallel cleaning module for a gear pump for rapid cleaning during spray painting color change to solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A parallel cleaning module for a gear pump for rapid cleaning during spray painting color change, including a color change valve, a paint pressure regulator, a gear pump, and an atomizer. The color change valve is connected to the paint pressure regulator, the gear pump is connected to the atomizer, and the parallel cleaning module is connected to the paint pressure regulator and the gear pump. The parallel cleaning module includes:

[0007] An outer housing;

[0008] A valve core assembly disposed inside the outer housing;

[0009] A module inlet joint provided on one side of the outer housing;

[0010] A module outlet joint provided on the other side of the outer housing;

[0011] A DUMP return joint also provided on one side of the outer housing;

[0012] A solvent inlet joint provided at one end of the outer housing. Among them, the module inlet joint is connected to the paint pressure regulator and the valve core assembly, the module outlet joint is connected to the valve core assembly and the gear pump, and the DUMP return joint and the solvent inlet joint are respectively connected to the valve core assembly.

[0013] Preferably, the spool assembly includes a DUMP control valve, a solvent control valve, an air control valve, and a master control valve. The DUMP control valve and the master control valve are respectively connected to the module inlet connector. The solvent control valve and the air control valve are respectively connected to the master control valve. The master control valve is connected to the module outlet connector. The solvent inlet connector is connected to the solvent control valve.

[0014] As a further preference, the parallel cleaning module further includes a blow-dry air inlet connector, which is provided at one end of the outer housing and connected to the air control valve.

[0015] As a further preference, it further includes a cleaning solvent control air inlet connector, which is also provided at one end of the outer housing, and the cleaning solvent control air inlet connector and the blow-dry air inlet connector are provided on both sides of the solvent inlet connector.

[0016] As a further preference, it further includes a DUMP return control air inlet connector, which is provided on one side of the outer housing, and the DUMP return control air inlet connector is located on one side of the module inlet connector.

[0017] As a further preference, it further includes a cleaning switching control air inlet connector, which is provided at the upper end of the outer housing.

[0018] As a further preference, it further includes pressure sensors. Two pressure sensors are provided at the other end of the outer housing. One of the pressure sensors is connected to the DUMP control valve, and the other pressure sensor is connected to the master control valve.

[0019] The above technical solution has the following advantages or beneficial effects:

[0020] In the present invention, the color change cleaning time can be saved. It can realize that the color change valve and the paint pressure regulator, the gear pump and the atomizer are synchronously cleaned separately, so as to achieve the purpose of parallel cleaning, thereby saving the color change cleaning time and improving the color change cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the parallel cleaning module for rapid cleaning of the gear pump for paint color change in the present invention;

[0022] Figure 2 is a schematic structural diagram of the parallel cleaning module installed on the gear pump in the present invention;

[0023] Figure 3 is a schematic structural diagram of the parallel cleaning module in the present invention;

[0024] Figure 4 It is the internal schematic diagram of the parallel cleaning module in the present invention.

[0025] In the figure: 1. Color-changing valve; 2. Paint pressure regulator; 3. Gear pump; 4. Atomizer; 5. Parallel cleaning module; 51. Outer housing; 52. Spool assembly; 521. DUMP control valve; 522. Solvent control valve; 523. Air control valve; 524. Main control valve; 53. Module inlet joint; 54. Module outlet joint; 55. DUMP return joint; 56. Solvent inlet joint; 57. Blowing air inlet joint; 58. Cleaning solvent control air inlet joint; 59. DUMP return control air inlet joint; 590. Cleaning switching control air inlet joint; 591. Pressure sensor; 592. Blowing air control air inlet joint. Specific embodiments

[0026] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of 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 situations.

[0029] Figure 1 It is the structural schematic diagram of the parallel cleaning module for rapid cleaning of the gear pump during paint color change in the present invention; Figure 2 It is the structural schematic diagram of the parallel cleaning module installed on the gear pump in the present invention; Figure 3It is a schematic structural diagram of the parallel cleaning module in the present invention; Figure 4 It is the internal schematic diagram of the parallel cleaning module in the present invention. Please refer to Figures 1 to 4 As shown in the figure, a preferred embodiment is shown. A parallel cleaning module for a gear pump for rapid cleaning during spray color change is shown, including a color change valve 1, a paint pressure regulator 2, a gear pump 3, and an atomizer 4. The color change valve 1 is connected to the paint pressure regulator 2, the gear pump 3 is connected to the atomizer 4, and the parallel cleaning module 5 is connected to the paint pressure regulator 2 and the gear pump 3; in this embodiment, as Figure 1 shown, the color change valve 1, the paint pressure regulator 2, the parallel cleaning module 5, the gear pump 3, and the atomizer 4 are connected in sequence. Among them, the bottom of the color change valve 1 has a cleaning module, the cleaning module is connected to the color change valve 1, and the cleaning module has a cleaning solvent inlet joint 56 and a first drying air joint. The cleaning solvent inlet joint 56 is used to inject cleaning solvent into the color change valve 1 for cleaning the inside of the color change valve 1 and the paint pressure regulator 2. The waste liquid generated after cleaning enters the parallel cleaning module 5 and is finally discharged through the DUMP return joint 55 (waste liquid recovery return joint). The first drying air joint is used for drying the inside of the color change valve 1 and the paint pressure regulator 2. The color change valve 1 in this embodiment has several paint inlets.

[0030] The parallel cleaning module 5 includes:

[0031] A housing 51;

[0032] A spool assembly 52, and the spool assembly 52 is arranged inside the housing 51;

[0033] A module inlet joint 53, and a module inlet joint 53 is provided on one side of the housing 51;

[0034] A module outlet joint 54, and a module outlet joint 54 is provided on the other side of the housing 51;

[0035] A DUMP return joint 55, and a DUMP return joint 55 is also provided on one side of the housing 51;

[0036] The solvent inlet joint 56 is provided at one end of the outer housing 51. Among them, the module inlet joint 53 is connected to the paint pressure regulator 2 and the spool assembly 52, the module outlet joint 54 is connected to the spool assembly 52 and the gear pump 3, and the DUMP return joint 55 and the solvent inlet joint 56 are respectively connected to the spool assembly 52. In this embodiment, the waste liquid after cleaning the color change valve 1 and the paint pressure regulator 2 enters the spool assembly 52 through the module inlet joint 53 and is discharged by the spool assembly 52. The solvent passing through the solvent inlet joint of the solvent enters the gear pump 3 and the atomizer 4 and cleans the interiors of the gear pump 3 and the atomizer 4. The waste liquid generated after cleaning is directly discharged through the atomizer 4. By adding a parallel cleaning module 5 between the paint pressure regulator 2 and the gear pump 3, synchronous separate cleaning of the color change valve 1, the paint pressure regulator 2, the gear pump 3, and the atomizer 4 can be achieved, thereby achieving the purpose of parallel cleaning, saving the color change cleaning time, and improving the color change cleaning efficiency.

[0037] Further, as a preferred embodiment, the spool assembly 52 includes a DUMP control valve 521 (waste liquid recovery control valve), a solvent control valve 522, an air control valve 523, and a main control valve 524. The DUMP control valve 521 and the main control valve 524 are respectively connected to the module inlet joint 53, the solvent control valve 522 and the air control valve 523 are respectively connected to the main control valve 524, the main control valve 524 is connected to the module outlet joint 54, and the solvent inlet joint 56 is connected to the solvent control valve 522. In this embodiment, during normal operation, the DUMP control valve 521, the solvent control valve 522, and the air control valve 523 are all in the closed state. The paint enters the paint pressure regulator 2 through the color change valve 1 for pressure adjustment, then enters the main control valve 524 through the module inlet joint 53, and then enters the gear pump 3 through the module outlet joint 54, and finally is sprayed out by the atomizer 4. When performing color change cleaning, the main control valve 524 is closed and the DUMP control valve 521 is opened. The cleaning solvent cleans the color change valve 1 and the paint pressure regulator 2, and the waste liquid after cleaning flows out from the DUMP return joint 55. At the same time, the solvent passing through the solvent inlet joint 56 enters the solvent control valve 522, then enters the gear pump 3 and the atomizer 4 through the main control valve 524 for cleaning work, and the waste liquid after cleaning is discharged by the atomizer 4, thereby achieving the purpose of parallel cleaning.

[0038] Further, as a preferred embodiment, the parallel cleaning module 5 further includes a blow-dry air inlet joint 57, and the blow-dry air inlet joint 57 is provided at one end of the outer housing 51 and is connected to the air control valve 523.

[0039] Further, as a preferred embodiment, it further includes a cleaning solvent control air inlet joint 58. One end of the outer housing 51 is also provided with a cleaning solvent control air inlet joint 58, and the cleaning solvent control air inlet joint 58 and the drying air inlet joint 57 are arranged on both sides of the solvent inlet joint 56. In this embodiment, the drying air inlet joint 57 is used for the drying work of the gear pump 3 and the atomizer 4. The provided cleaning solvent control air inlet joint 58 is communicated with the solvent control valve 522 and is used to control the opening or closing action of the solvent control valve 522.

[0040] Further, as a preferred embodiment, it further includes a DUMP reflux control air inlet joint 59 (waste liquid recovery reflux control air inlet joint). One side of the outer housing 51 is provided with a DUMP reflux control air inlet joint 59, and the DUMP reflux control air inlet joint 59 is located on one side of the module inlet joint 53. In this embodiment, the DUMP reflux control air inlet joint 59 is communicated with the DUMP control valve 521 and is used to control the opening or closing action of the DUMP control valve 521.

[0041] Further, as a preferred embodiment, it further includes a cleaning switching control air inlet joint 590. The upper end of the outer housing 51 is provided with a cleaning switching control air inlet joint 590. The cleaning switching control air inlet joint 590 is connected to the master control valve 524 and is used to control the opening and closing actions of the master control valve 524 to realize the switching between the spraying and cleaning actions.

[0042] Further, as a preferred embodiment, it further includes pressure sensors 591. The other end of the outer housing 51 is provided with two pressure sensors 591. One of the pressure sensors 591 is connected to the DUMP control valve 521, and the other pressure sensor 591 is connected to the master control valve 524. In this embodiment, the two provided pressure sensors 591 are used to measure the pressures inside the DUMP control valve 521 and the master control valve 524, facilitating the monitoring and control of the pressures.

[0043] Further, as a preferred embodiment, it further includes a drying air control air inlet joint 592. One end of the outer housing 51 is provided with a drying air control air inlet joint 592, and the drying air control air inlet joint 592 is located on the side of the drying air inlet joint 57 away from the solvent inlet joint 56. The provided drying air control air inlet joint 592 is communicated with the air control valve 523 and is used to control the opening and closing actions of the air control valve 523.

[0044] The above are only the preferred embodiments of the present invention, and thus do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A parallel cleaning module for a gear pump with rapid color change cleaning during spraying, comprising a color change valve, a coating pressure regulator, a gear pump, and an atomizer. The color change valve is connected to the coating pressure regulator, and the gear pump is connected to the atomizer. It is characterized in that, The parallel cleaning module is connected to the paint pressure regulator and the gear pump. The parallel cleaning module includes: A housing; A spool assembly disposed within the housing; A module inlet joint provided on one side of the housing; A module outlet joint provided on the other side of the housing; A DUMP return joint provided on one side of the housing; A solvent inlet joint provided at one end of the housing. Among them, the module inlet joint is connected to the paint pressure regulator and the spool assembly, the module outlet joint is connected to the spool assembly and the gear pump, and the DUMP return joint and the solvent inlet joint are respectively connected to the spool assembly.

2. The parallel cleaning module for a gear pump with rapid color change cleaning for spraying according to claim 1, characterized in that, The spool assembly includes a DUMP control valve, a solvent control valve, an air control valve, and a main control valve. The DUMP control valve and the main control valve are respectively connected to the module inlet joint. The solvent control valve and the air control valve are respectively connected to the main control valve. The main control valve is connected to the module outlet joint. The solvent inlet joint is connected to the solvent control valve.

3. The parallel cleaning module for a gear pump with quick color change for spraying according to claim 2, characterized in that The parallel cleaning module further includes a blow-dry air inlet joint provided at one end of the housing and connected to the air control valve.

4. The parallel cleaning module for a spray color-changing and quickly cleaning gear pump according to claim 3, wherein, It further includes a cleaning solvent control air inlet joint provided at one end of the housing, and the cleaning solvent control air inlet joint and the blow-dry air inlet joint are provided on both sides of the solvent inlet joint.

5. The parallel cleaning module for a spray color-changing rapid cleaning gear pump according to claim 2, characterized in that It further includes a DUMP return control air inlet joint provided on one side of the housing, and the DUMP return control air inlet joint is located on one side of the module inlet joint.

6. The parallel cleaning module for the gear pump with rapid color change cleaning for spraying according to claim 2, characterized in that It further includes a cleaning switching control air inlet joint provided at the upper end of the housing.

7. The parallel cleaning module for a gear pump with rapid color change cleaning for spraying according to claim 2, characterized in that, It further includes pressure sensors. Two pressure sensors are provided at the other end of the housing. One of the pressure sensors is connected to the DUMP control valve, and the other pressure sensor is connected to the main control valve.

8. The parallel cleaning module of the gear pump for rapid cleaning of spray color change according to claim 4, characterized in that It further includes a blow-dry air control air inlet joint provided at one end of the housing, and the blow-dry air control air inlet joint is located on the side of the blow-dry air inlet joint away from the solvent inlet joint.

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