Spray gun cleaning device

Abstract

The utility model discloses a spray gun cleaning device which comprises a cleaning box, a waste liquid bin is arranged at the front end of the inner side of the cleaning box, the left end of the bottom of the waste liquid bin is communicated with a waste discharge pipe, and the waste discharge pipe is fixedly installed at the bottom of the left side of the cleaning box. Comprehensive automatic cleaning of the pressure feed type spray gun is achieved, the cleaning unit adopts a mode that a motor drives a nozzle brush to rotate and rotate, a nozzle part and a gun barrel part of the spray gun can be brushed more comprehensively, stains and residues are effectively removed, meanwhile, the flushing unit sprays out cleaning liquid at high pressure through a water pump, the spray gun is rapidly flushed, and the cleaning efficiency is improved. The cleaning efficiency is improved; the spray gun feeding connector connecting pipe is connected with a feeding connector on a spray gun inserted into the gun head insertion washing hole, then the control valve is opened, the conveying pipe conveys cleaning liquid into the spray gun through the fixing pipe and the spray gun feeding connector connecting pipe, and therefore the interior of the spray gun is washed.

Description

Technical Field

[0001] This utility model relates to the field of spray gun cleaning technology, specifically a spray gun cleaning device. Background Technology

[0002] In industrial production, pressure-feed spray guns are widely used for spraying liquids such as paints, varnishes, and coolants due to their high efficiency and flexible spraying capabilities. However, with the increase of usage time, various stains, such as paint residue, dust, and grease, will gradually accumulate inside and outside the spray gun. These stains will not only reduce the spraying effect of the spray gun, such as causing uneven spraying, particle formation, or spray shape deformation, but may also cause the spray gun to become clogged. In severe cases, it may even lead to damage to the spray gun, affecting production efficiency and product quality. Therefore, regularly cleaning the spray gun to remove stains and residues is a key step in maintaining the performance of the spray gun, extending its service life, and ensuring smooth production.

[0003] Traditional spray gun cleaning methods mostly involve manual brushing or soaking. While manual brushing can remove stains to some extent, it is inefficient and cannot guarantee thorough and uniform cleaning. Soaking can clean the spray gun more comprehensively, but the soaking solution often contains a large number of harmful chemicals, which not only pollute the environment but may also corrode the spray gun material and shorten its service life. Therefore, we propose a spray gun cleaning device. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a spray gun cleaning device. The technical solution adopted is as follows: A cleaning tank is provided at the front inner side of the cleaning tank, a waste liquid chamber is provided at the bottom left end of the waste liquid chamber, and the waste liquid chamber is fixedly installed at the bottom left side of the cleaning tank. A cleaning unit is provided at the top of the waste liquid chamber, and the cleaning unit is located below the gun head insertion hole provided at the center of the top of the cleaning tank. A liquid injection pipe is provided at the rear left end of the top of the cleaning tank, and the liquid injection pipe is connected to the interior of the water storage tank provided at the rear inner side of the cleaning tank. A rinsing unit is provided in the middle of the inner side of the water storage tank. The rinsing unit includes a water pump, an inlet pipe, a diversion pipe, a delivery pipe, and a rinsing nozzle. The water pump is fixedly installed in the middle of the rear end of the inner side of the water storage tank. The inlet pipe is fixedly installed at the bottom of the water pump at the pumping end. The delivery pipe is fixedly installed at the top of the water pump at the drain end. A diversion pipe is provided in the middle of the delivery pipe. The diversion pipe passes through a through hole in the middle of the front side of the water storage tank and is fixedly connected to the rinsing nozzle provided inside the waste liquid tank. The top of the delivery pipe is connected to a connecting component provided at the rear end of the top of the cleaning tank.

[0005] As a preferred embodiment of this utility model, the cleaning unit includes a motor, a fixed internal gear seat, a rotating external gear seat, a drive gear, a driven gear, a connecting shaft, a nozzle brush, and a fixing plate. The fixed internal gear seat is fixedly installed at the center of the top inner side of the cleaning box, and the fixed internal gear seat and the nozzle insertion hole are concentric. A rotating external gear seat is rotatably installed on the outer side of the fixed internal gear seat. A drive gear is provided at the left end of the rotating external gear seat, and the teeth on the drive gear mesh with the external gear ring provided at the middle outer side of the rotating external gear seat. A motor is provided above the drive gear, and the motor is fixedly installed at the top left end of the cleaning box. The output shaft of the motor passes through a through hole provided on the cleaning box and is fixedly connected to the drive gear. Fixing plates are symmetrically arranged on the bottom left and right sides of the rotating external gear seat. A connecting shaft is rotatably installed on the opposite end of the fixing plate. A nozzle brush is fixedly installed at the bottom of the connecting shaft, and a driven gear is fixedly installed at the top of the connecting shaft. The teeth on the driven gear mesh with the internal gear ring provided at the bottom inner side of the fixed internal gear seat.

[0006] As a preferred technical solution of this utility model, a rubber sheet is fixedly installed in the middle of the inner side of the gun head insertion hole, and a "rice" shaped through groove is provided in the middle of the rubber sheet.

[0007] As a preferred embodiment of this utility model, a liquid level sensor is fixedly installed at the bottom right side of the inner side of the water storage tank, and the sensing end of the liquid level sensor is located at the top of the inlet pipe.

[0008] As a preferred embodiment of this utility model, the connecting assembly includes a fixed pipe, a control valve, and a spray gun feeding interface connecting pipe. The fixed pipe is fixedly installed on the top of the conveying pipe, the control valve is provided in the middle of the fixed pipe, and the spray gun feeding interface connecting pipe is provided at the top of the fixed pipe.

[0009] As a preferred technical solution of this utility model, it also includes a controller, which is located on the top right side of the front of the cleaning tank. The output end of the controller is electrically connected to the input end of the motor and the water pump, and the input end of the controller is electrically connected to the output end of the liquid level sensor and the external power supply.

[0010] The beneficial effects of this utility model are as follows: This spray gun cleaning device, by setting up a cleaning unit and a rinsing unit, achieves fully automated cleaning of pressure-feed spray guns. The cleaning unit uses a motor-driven nozzle brush rotation and self-rotation method, which can more thoroughly clean the nozzle and barrel of the spray gun, effectively removing stains and residues. At the same time, the rinsing unit uses a water pump to spray the cleaning fluid at high pressure, quickly rinsing the spray gun and improving cleaning efficiency. By connecting the spray gun feed interface connecting pipe to the feed interface on the spray gun inserted into the gun head rinsing hole, and then opening the control valve, the delivery pipe sends the cleaning fluid into the spray gun through the fixed pipe and the spray gun feed interface connecting pipe, thereby rinsing the inside of the spray gun. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic cross-sectional view of the present invention.

[0013] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0014] Figure 4 This is a partially enlarged structural diagram of the cleaning unit of this utility model.

[0015] In the diagram: 1. Cleaning tank; 2. Gun nozzle insertion hole; 3. Controller; 4. Rubber sheet; 5. Cleaning unit; 51. Motor; 52. Fixed internal gear seat; 53. Rotating external gear seat; 54. Drive gear; 55. Driven gear; 56. Connecting shaft; 57. Nozzle brush; 58. Fixing plate; 6. Flushing unit; 61. Water pump; 62. Inlet pipe; 63. Diverter pipe; 64. Conveying pipe; 65. Flushing nozzle; 7. Waste liquid tank; 8. Waste discharge pipe; 9. Water storage tank; 10. Injection pipe; 11. Liquid level sensor; 12. Fixing pipe; 13. Control valve; 14. Spray gun feed interface connection pipe. Detailed Implementation

[0016] Example 1

[0017] like Figures 1 to 4As shown, this utility model discloses a spray gun cleaning device. The technical solution includes a cleaning tank 1, a waste liquid tank 7 at the inner front end of the cleaning tank 1, a waste discharge pipe 8 connected to the bottom left end of the waste liquid tank 7, and the waste discharge pipe 8 is fixedly installed on the bottom left side of the cleaning tank 1. A cleaning unit 5 is provided on the top of the waste liquid tank 7, and the cleaning unit 5 is located below the gun head insertion hole 2 provided at the top center of the cleaning tank 1. The cleaning unit 5 includes a motor 51, a fixed internal gear seat 52, a rotating external gear seat 53, a driving gear 54, a driven gear 55, a connecting shaft 56, a nozzle brush 57, and a fixing plate 58. The fixed internal gear seat 52 is fixedly installed at the inner top center of the cleaning tank 1, and the fixed internal gear seat 52 and the gun head insertion hole 2 are concentric. A rotating external gear seat 53 is rotatably mounted on the outer side of the cleaning tank 1. A drive gear 54 is provided at the left end of the rotating external gear seat 53. The teeth on the drive gear 54 mesh with the external gear ring provided at the middle of the outer side of the rotating external gear seat 53. A motor 51 is provided above the drive gear 54. The motor 51 is fixedly mounted on the top left end of the cleaning tank 1. The output shaft of the motor 51 passes through a through hole provided on the cleaning tank 1 and is fixedly connected to the drive gear 54. Fixing plates 58 are symmetrically provided on the left and right sides of the bottom of the rotating external gear seat 53. A connecting shaft 56 is rotatably mounted on the opposite end of the fixing plate 58. A nozzle brush 57 is fixedly mounted on the bottom of the connecting shaft 56. A driven gear 55 is fixedly mounted on the top of the connecting shaft 56. The teeth on the driven gear 55 mesh with the external gear ring provided on the bottom of the inner side of the fixed internal gear seat 52. The internal gear ring engages with the fixed internal gear seat 52. When the motor 51 is started, its conveyor shaft drives the drive gear 54 to rotate. The teeth on the drive gear 54 mesh with the external gear ring on the outer side of the rotating external gear seat 53. Therefore, the drive gear 54 can drive the rotating external gear seat 53 to rotate on the fixed internal gear seat 52. During the rotation of the rotating external gear seat 53, it drives the fixed plate 58 at its bottom and the connecting shaft 56 to rotate. The driven gear 55 at the top of the connecting shaft 56 meshes with the internal gear ring on the inner side of the fixed internal gear seat 52. This allows the connecting shaft 56 to drive the nozzle brush 57 to rotate. Simultaneously, as the rotating external gear seat 53 drives the nozzle brush 57 to rotate, the nozzle brush 57 also rotates under the drive of the driven gear 55, thus allowing for a more comprehensive cleaning of the spray gun. (Gun head cleaning hole 2) A rubber sheet 4 is fixedly installed in the middle of the inner side of the cleaning tank 1, and a "rice"-shaped groove is provided in the middle of the rubber sheet 4. The rubber sheet 4 with the "rice"-shaped groove can fit tightly against the outside of the spray gun barrel, ensuring that the cleaning liquid will not splash out from the nozzle insertion hole 2. A liquid injection pipe 10 is provided at the top left rear end of the cleaning tank 1, and the liquid injection pipe 10 is connected to the water storage tank 9 located at the inner rear end of the cleaning tank 1. A rinsing unit 6 is provided in the middle of the inner side of the water storage tank 9. The rinsing unit 6 includes a water pump 61, a liquid inlet pipe 62, a diversion pipe 63, a delivery pipe 64, and a rinsing nozzle 65. The water pump 61 is fixedly installed in the middle of the inner rear end of the water storage tank 9. The water inlet pipe 62 is fixedly installed at the bottom of the water pump 61, and the delivery pipe 64 is fixedly installed at the top of the water pump 61.A diversion pipe 63 is provided in the middle of the conveying pipe 64. The diversion pipe 63 passes through the through hole in the middle of the front side of the water storage tank 9 and is fixedly connected to the flushing nozzle 65 inside the waste liquid tank 7. By starting the water pump 61, the water pump 61 pumps water into the water storage tank 9 through the liquid inlet pipe 62, and then delivers it to the flushing nozzle 65 in the waste liquid tank 7 through the conveying pipe 64 and the diversion pipe 63. The flushing nozzle 65 flushes the spray gun during the brushing process. The top of the conveying pipe 64 is connected to the connecting component provided at the rear end of the top of the cleaning tank 1. The connecting component includes a fixed pipe 12, a control valve 13, and a spray gun feed interface connecting pipe 14. The fixed pipe 12 is fixedly installed on the top of the conveying pipe 64. The control valve 13 is provided in the middle of the fixed pipe 12. The spray gun feed interface connecting pipe 14 is provided at the top of the fixed pipe 12. The spray gun feed interface connecting pipe 14 is connected to the feed interface on the spray gun inserted into the gun head insertion hole 2. Then, the control valve 13 is opened, allowing the delivery pipe 64 to send the cleaning fluid into the spray gun through the fixed pipe 12 and the spray gun supply interface connection pipe 14, thereby rinsing the inside of the spray gun. A liquid level sensor 11 is fixedly installed at the bottom right side of the inner side of the water storage tank 9. The sensing end of the liquid level sensor 11 is located at the top of the inlet pipe 62, ensuring that the liquid in the water storage tank 9 completely submerges the inlet of the inlet pipe 62. The system also includes a controller 3, which is located at the top right side of the front side of the cleaning tank 1. The output of the controller 3 is electrically connected to the input of the motor 51 and the water pump 61, and the input of the controller 3 is electrically connected to the output of the liquid level sensor 11 and the external power supply. The controller 3 allows users to control the motor 51 and the water pump 61 separately. Simultaneously, the controller 3 can receive the liquid level signal sensed by the liquid level sensor 11, thus promptly reminding the user to inject cleaning fluid into the water storage tank 9 through the injection pipe 10.

[0018] Working principle of the utility model: When in use, insert the pressure-fed spray gun to be cleaned into the gun head insertion and cleaning hole 2 at the top of the cleaning box 1. The rubber sheet 4 provided with a "rice" - shaped through groove can closely fit the outer part of the spray gun barrel, ensuring that the cleaning liquid will not splash out from the gun head insertion and cleaning hole 2. Then, start the cleaning unit 5 and the flushing unit 6 through the controller 3. By starting the motor 51, its transmission shaft drives the driving gear 54 to rotate. The teeth on the driving gear 54 mesh with the external tooth ring on the outer side of the rotating external tooth seat 53. Therefore, the driving gear 54 can drive the rotating external tooth seat 53 to rotate on the fixed internal tooth seat 52. During the rotation of the rotating external tooth seat 53, it will drive the fixing plate 58 and the connecting shaft 56 at its bottom to rotate. Through the engagement of the driven gear 55 at the top of the connecting shaft 56 with the internal tooth ring inside the fixed internal tooth seat 52, the connecting shaft 56 can drive the nozzle brush 57 to rotate. While the rotating external tooth seat 53 drives the nozzle brush 57 to rotate, the nozzle brush 57 rotates self - driven by the driven gear 55, so as to more comprehensively brush the nozzle part and the barrel part of the spray gun. When the water pump 61 operates, the water pump 61 pumps water into the water storage bin 9 through the liquid inlet pipe 62, and then transports it to the flushing nozzle 65 in the waste liquid bin 7 through the delivery pipe 64 and the shunt pipe 63. The flushing nozzle 65 flushes the spray gun during the brushing process, washing away the residual cleaning liquid and stains. When cleaning the inside of the spray gun, connect the spray gun feeding interface connecting pipe 14 to the feeding interface on the spray gun inserted in the gun head insertion and cleaning hole 2, then open the control valve 13, so that the delivery pipe 64 sends the cleaning liquid through the fixed pipe 12 and the spray gun feeding interface connecting pipe 14 into the spray gun, and finally sprays from the spray gun nozzle to the waste liquid bin 7, and the waste liquid after cleaning is discharged out through the waste discharge pipe 8. During the cleaning and flushing process, the liquid level sensor 11 will monitor the liquid level in the water storage bin 9 in real - time. When the liquid level is lower than the set value, the liquid level sensor 11 will send a signal to the controller 3 to remind the user to inject cleaning liquid into the water storage bin 9 in time through the liquid injection pipe 10.

[0019] The circuit connection involved in the utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to the existing technology that is widely used.

[0020] The components not described in detail in this article are prior art.

[0021] Although the specific embodiments of the utility model are described in detail above, the utility model is not limited to the above - mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model, and the modifications or deformations without creative labor are still within the protection scope of the utility model.

Claims

1. A lance cleaning device comprising a cleaning tank (1), characterized in that The inside front end of the cleaning tank (1) is provided with a waste liquid bin (7), the bottom left end of the waste liquid bin (7) is communicated with a waste pipe (8), and the waste pipe (8) is fixedly installed on the left bottom of the cleaning tank (1), the top of the waste liquid bin (7) is provided with a cleaning unit (5), and the cleaning unit (5) is located below the gun head plug washing hole (2) arranged at the top center of the cleaning tank (1), the cleaning unit (5) comprises a motor (51), a fixed inner gear seat (52), a rotating outer gear seat (53), a driving gear (54), a driven gear (55), a connecting shaft (56), a nozzle brush (57) and a fixed plate (58), the fixed inner gear seat (52) is fixedly installed at the top center of the inside of the cleaning tank (1), and the fixed inner gear seat (52) and the gun head plug washing hole (2) are the same center, the rotating outer gear seat (53) is rotatably installed on the outside of the fixed inner gear seat (52), the left end of the rotating outer gear seat (53) is provided with the driving gear (54), the teeth on the driving gear (54) are engaged with the outer gear ring arranged on the middle part of the outside of the rotating outer gear seat (53), the motor (51) is arranged above the driving gear (54), the motor (51) is fixedly installed on the top left end of the cleaning tank (1), the output shaft of the motor (51) penetrates through the through hole arranged on the cleaning tank (1) and is fixedly connected with the driving gear (54), the bottom of the rotating outer gear seat (53) is provided with the fixed plate (58) in a left-right symmetrical manner, the opposite ends of the fixed plate (58) are rotatably installed with the connecting shaft (56) respectively, the bottom of the connecting shaft (56) is fixedly installed with the nozzle brush (57) respectively, the top of the connecting shaft (56) is fixedly installed with the driven gear (55) respectively, the teeth on the driven gear (55) are engaged with the inner gear ring arranged on the inside bottom of the fixed inner gear seat (52) respectively, the top left rear end of the cleaning tank (1) is provided with a liquid injection pipe (10), and the liquid injection pipe (10) is in communication with the inside of the water storage bin (9) arranged on the rear end of the inside of the cleaning tank (1), the inside middle part of the water storage bin (9) is provided with a flushing unit (6), the flushing unit (6) comprises a water pump (61), a liquid inlet pipe (62), a shunt pipe (63), a conveying pipe (64) and a flushing nozzle (65), the water pump (61) is fixedly installed on the inside rear end middle part of the water storage bin (9), the water pump (61) is fixedly installed with the liquid inlet pipe (62) on the water pumping end arranged on the bottom, the water pump (61) is fixedly installed with the conveying pipe (64) on the water discharging end arranged on the top, the middle part of the conveying pipe (64) is provided with the shunt pipe (63), the shunt pipe (63) penetrates through the through hole arranged on the front middle part of the water storage bin (9) and is fixedly connected with the flushing nozzle (65) arranged inside the waste liquid bin (7), and the top of the conveying pipe (64) is connected with the connecting assembly arranged on the top rear end of the cleaning tank (1).

2. A lance cleaning device according to claim 1, characterized in that The inside middle part of the gun head plug washing hole (2) is fixedly installed with a rubber sheet (4), and the middle part of the rubber sheet (4) is provided with a "rice" shaped through slot.

3. A lance cleaning device according to claim 1, characterized in that: The inner right end bottom of the water storage bin (9) is fixedly installed with a liquid level sensor (11), and the sensing end of the liquid level sensor (11) is located at the top of the liquid inlet pipe (62).

4. A lance cleaning device according to claim 1, characterized in that: The connecting assembly comprises a fixed pipe (12), a control valve (13) and a spray gun supply interface connecting pipe (14), the fixed pipe (12) is fixedly installed at the top of the conveying pipe (64), the middle part of the fixed pipe (12) is provided with the control valve (13), and the top of the fixed pipe (12) is provided with the spray gun supply interface connecting pipe (14).

5. A lance cleaning device according to claim 1, characterized in that: A controller (3) is further included, which is arranged at the front side right end top of the cleaning box (1), the output end of the controller (3) is electrically connected with the input end of the motor (51) and the water pump (61), and the input end of the controller (3) is electrically connected with the output end of the liquid level sensor (11) and an external power supply.

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