Automatic spray gun cleaning mechanism and spray gun cleaning machine

Abstract

The utility model discloses an automatic spray gun cleaning mechanism and a spray gun cleaning machine, the automatic spray gun cleaning mechanism comprises a cleaning box, the interior of the cleaning box is sequentially divided into a pneumatic control area, a first cleaning area and a second cleaning area, the top of the cleaning box corresponding to the first cleaning area is provided with a first cleaning port, and the top of the second cleaning area is provided with a second cleaning port; a second cleaning opening is formed in the top corresponding to the first cleaning area; the rolling brush assembly is arranged in the first cleaning area and used for brushing a spray cap of the spray gun; the pneumatic control assembly is located in the pneumatic control area, and the pneumatic control assembly is connected with the rolling brush assembly; and the rotary spray head assembly is arranged in the second cleaning area and used for washing a spray cap of the spray gun. The spray gun can be brushed and washed, cleaning is thorough, and the spray gun cleaning device has the advantages of being high in cleaning efficiency and saving cleaning solvent.

Description

Technical Field

[0001] The utility model relates to a spray gun cleaning device, in particular to an automatic spray gun cleaning mechanism and a spray gun cleaning machine. Background Art

[0002] A spray gun cleaning machine is a product that automatically cleans the spray gun according to a pre-programmed cleaning program. Most spray gun cleaning machines in the prior art use a nozzle to directly flush the air cap of the spray gun, and the cleaning function is single, which easily leads to the problem of incomplete cleaning. To this end, the air cap of the spray gun needs to be cleaned multiple times, and multiple cleanings require a long cleaning time and cleaning solvents, resulting in low cleaning efficiency and high cleaning costs. Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic spray gun cleaning mechanism, aiming to solve the technical problem that the automatic spray gun cleaning machine in the prior art has a single cleaning function, resulting in incomplete cleaning and low cleaning efficiency.

[0004] To achieve the above-mentioned purpose, the automatic cleaning mechanism of the spray gun proposed by the utility model comprises:

[0005] A cleaning box, wherein the cleaning box is divided into a pneumatic control area, a first cleaning area and a second cleaning area in sequence, and a first cleaning port is opened at the top of the cleaning box corresponding to the first cleaning area, and a second cleaning port is opened at the top of the first cleaning area;

[0006] A roller brush assembly, which is arranged in the first cleaning area and is used to brush the spray cap of the spray gun;

[0007] A pneumatic control assembly, wherein the pneumatic control assembly is located in the pneumatic control area and is connected to the roller brush assembly;

[0008] A rotating spray head assembly is arranged in the second cleaning area and is used for flushing the spray cap of the spray gun.

[0009] Optionally, the roller brush assembly includes a roller brush and a nozzle, the roller brush and the nozzle are spaced apart, and the cleaning solvent sprayed from the nozzle can wet the roller brush; the pneumatic control assembly includes an air-controlled valve and a swing cylinder, the air-controlled valve is arranged on the inner wall of the cleaning box, the air-controlled valve is connected to the swing cylinder, and the swing cylinder is movably connected to the roller brush.

[0010] Optionally, the pneumatic control component also includes a swing cylinder needle valve, a micro direct-acting valve and a coupling. The swing cylinder needle valve is arranged on the outer wall of the cleaning box. The pneumatic control valve is respectively connected with the swing cylinder needle valve, the micro direct-acting valve and the swing cylinder to control the rotation of the swing cylinder; the micro direct-acting valve is connected with the swing cylinder to control the reversing rotation of the swing cylinder; the swing cylinder is movably connected with the roller brush through a coupling.

[0011] Optionally, a nozzle solvent regulating valve is further included, wherein the nozzle solvent regulating valve is arranged on the outer wall of the cleaning box, and the nozzle solvent regulating valve is communicated with the nozzle.

[0012] Optionally, the rotary nozzle assembly includes an air-solvent switching valve and a rotary nozzle, the air-solvent switching valve is arranged on the outer wall of the cleaning box, the rotary nozzle is located in the cleaning box, and the rotary nozzle is communicated with the air-solvent switching valve.

[0013] Optionally, the air-solvent switching valve includes a valve body, and a flushing air valve, an air regulating needle valve and a flushing solvent regulating valve arranged on the valve body.

[0014] Optionally, the cleaning box includes a box body and a box cover, the box body and the box cover are sealed together, and the box body is arranged on a base.

[0015] Optionally, a buffer is provided between the base and the box body; and / or

[0016] An adapter is arranged at a position of the box body corresponding to the second cleaning port, and at least one spray hole communicating with the outside of the box body is arranged in the middle of the adapter.

[0017] Optionally, it also includes a waste liquid collection bin and a discharge pipe, wherein the waste liquid collection bin is funnel-shaped and is located in the second cleaning area and directly below the rotating nozzle, and the discharge pipe is located on the outer wall of the bottom of the box body, and the discharge pipe is connected to the discharge port of the waste liquid collection bin.

[0018] To achieve the above object, the spray gun cleaning machine proposed in the utility model includes the above automatic spray gun cleaning mechanism.

[0019] The automatic cleaning mechanism of the spray gun of the utility model divides a cleaning box into a pneumatic control area, a first cleaning area and a second cleaning area, and arranges a pneumatic control component in the pneumatic control area, and arranges a roller brush component in the first cleaning area. The roller brush component is controlled to work by the pneumatic control component, so that the spray cap of the spray gun can be brushed. A rotating nozzle assembly is arranged in the second cleaning area, and the rotating nozzle assembly can flush the spray cap of the spray gun. The two cleaning methods are combined to clean the spray gun, so that the spray gun can be thoroughly cleaned, the cleaning efficiency is improved, repeated cleaning is avoided, and cleaning solvent can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the automatic cleaning mechanism for a spray gun of the utility model from a first perspective;

[0022] Figure 2 It is a structural schematic diagram of another perspective of an embodiment of the automatic cleaning mechanism for a spray gun of the utility model;

[0023] Figure 3 This is a schematic diagram of the exploded structure of an embodiment of the automatic cleaning mechanism for a spray gun of the utility model;

[0024] Figure 4 This is a schematic diagram of the exploded structure of a roller brush assembly in an embodiment of the automatic cleaning mechanism for a spray gun of the utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of a rotating spray head assembly in an embodiment of the automatic cleaning mechanism for a spray gun of the utility model;

[0026] Figure 6 It is a structural schematic diagram of an adapter in an embodiment of the automatic cleaning mechanism for a spray gun of the utility model.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] Different from the existing spray gun cleaning machine with a single cleaning function, which easily leads to incomplete cleaning and low cleaning efficiency, the utility model provides an automatic spray gun cleaning mechanism, which can refresh and rinse the spray gun, clean it thoroughly, and improve the cleaning efficiency. Please refer to the following embodiments for the specific structure of the automatic spray gun cleaning mechanism.

[0032] The utility model provides an automatic cleaning mechanism for a spray gun.

[0033] In the embodiment of the present utility model, Figures 1 to 6 As shown, the automatic cleaning mechanism of the spray gun is used to clean the spray gun. The mechanism mainly includes: a cleaning box 10, a roller brush assembly 50, a pneumatic control assembly 40 and a rotating nozzle assembly 60. Specifically, the cleaning box 10 is divided into a pneumatic control area 121, a first cleaning area 122 and a second cleaning area 123 in sequence, and the cleaning box 10 is provided with a first cleaning port 111 at the top corresponding to the first cleaning area 122, and a second cleaning port 112 at the top corresponding to the first cleaning area 122; the roller brush assembly 50, the roller brush assembly 50 is arranged in the first cleaning area 122, and is used to brush the spray cap of the spray gun 90; the pneumatic control assembly 40, the pneumatic control assembly 40 is located in the pneumatic control area 121, and the pneumatic control assembly 40 is connected to the roller brush assembly 50; the rotating nozzle assembly 60, the rotating nozzle assembly 60 is arranged in the second cleaning area 123, and is used to flush the spray cap of the spray gun 90.

[0034] The present solution divides the cleaning box 10 into a pneumatic control area 121, a first cleaning area 122 and a second cleaning area 123, wherein a pneumatic control assembly 40 is arranged in the pneumatic control area 121, a roller brush assembly 50 is arranged in the first cleaning area 122, and a rotating nozzle assembly 60 is arranged in the second cleaning area 123. The spray gun 90 can be brushed by the roller brush assembly 50, and the spray gun 90 can be flushed by the rotating nozzle assembly 60. The combination of brushing and flushing can thoroughly clean the spray gun 90, thereby improving the cleanliness and cleaning efficiency of the spray gun 90 and saving cleaning solvent.

[0035] Specifically, the roller brush assembly 50 includes a roller brush 51 and a nozzle 52, the roller brush 51 and the nozzle 52 are arranged at intervals, and the cleaning solvent sprayed from the nozzle 52 can wet the roller brush 51; the pneumatic control assembly 40 includes an air control valve 41 and a swing cylinder 42, the air control valve 41 is arranged on the inner wall of the cleaning box 10, the air control valve 41 is connected to the swing cylinder 42, and the swing cylinder 42 is movably connected to the roller brush 51. In this embodiment, the roller brush 51 is a nylon brush, which is used to brush the gun cap of the spray gun 90 in the case of serious dry contamination, which is conducive to deep cleaning of the spray gun 90 and improving the cleanliness. After brushing, it is rinsed with the rotating nozzle assembly 60. In order to increase the cleaning efficiency, the roller brush 51 is also equipped with a nozzle 52. There are two nozzles 52, which are respectively located on both sides of the roller brush 51. The cleaning solvent can be sprayed from the nozzle 52 to wet the roller brush 51, further improving the cleaning efficiency. The angle of the nozzle 52 can be adjusted to avoid overflow of the cleaning solvent. The nozzle 52 is fixed to the inner wall of the cleaning box by screws 521. The roller brush 51 can be fixed to the inner wall of the cleaning box 10 by screws. The number of screws can be flexibly selected according to the length of the nozzle 52, and is not limited here. It can be understood that when the gun cap of the spray gun 90 is lightly contaminated, it is also possible to use only the rotating nozzle for cleaning.

[0036] Specifically, the pneumatic control assembly 40 further includes a swing cylinder needle valve 43, a micro direct-acting valve 44 and a coupling 45. The swing cylinder needle valve 43 is arranged on the outer wall of the cleaning box 10. The pneumatic control valve 41 is respectively connected with the swing cylinder needle valve 43, the micro direct-acting valve 44 and the swing cylinder 42 to control the rotation of the swing cylinder 42; the micro direct-acting valve 44 is connected with the swing cylinder 42 to control the reversing rotation of the swing cylinder 42; the swing cylinder 42 is movably connected with the roller brush 51 through the coupling 45. In this embodiment, the swing cylinder needle valve 43 is fixed to the outer wall of the cleaning box 10 by screws, the pneumatic control valve 41 is fixed to the inner wall of the cleaning box 10 by screws, the outlet of the swing cylinder needle valve 43 is connected with the pneumatic control valve 41, and the pneumatic control valve 41 can adjust the air flow rate, thereby controlling the rotation of the swing cylinder 42. The pneumatic control valve 41 is also connected with the micro direct-acting valve 44, and the micro direct-acting valve 44 is connected with the swing cylinder 42 to control the reversing rotation of the swing cylinder 42. The roller brush 51 is driven to reciprocate by the swing cylinder 42, and the rotation angle of the roller brush 51 can be designed according to actual requirements, and is not limited here. The above-mentioned communication structure can be connected by two devices through an internal pipeline, or by a connecting pipeline.

[0037] Specifically, it also includes a nozzle solvent regulating valve 46, which is arranged on the outer wall of the cleaning box 10, and the nozzle solvent regulating valve 46 is connected to the nozzle 52. The nozzle solvent regulating valve 46 is fixed to the outer wall of the cleaning box 10 by screws or screws, and the number of screws can be designed according to actual requirements and is not limited here. The nozzle solvent regulating valve 46 can adjust the spraying amount of the nozzle 52 solvent, and the spraying amount can be designed according to actual requirements. The solvent in the nozzle 52 can be water, a cleaning solvent, etc.

[0038] In order to better control the rotating nozzle, the rotating nozzle assembly 60 includes an air solvent switching valve 61 and a rotating nozzle 62. The air solvent switching valve 61 is arranged on the outer wall of the cleaning box 10, and the rotating nozzle 62 is located in the cleaning box 10, and the rotating nozzle 62 is communicated with the air solvent switching valve 61. The rotating nozzle 62 is designed by combining a bearing with a fan-shaped nozzle, so that a certain hydraulic pressure or air pressure is applied to rotate the cleaning medium. Compared with the traditional fixed nozzle, the flushing effect has a large coverage area, no dead angles, and less nozzles are used, and the solvent waste is low. The air solvent switching valve 61 can simultaneously adjust the spraying amount of the cleaning medium and the flow rate of the air, so that the cleaning medium is sprayed at a high speed and the cleaning efficiency is high. In this embodiment, the air solvent switching valve 61 includes a valve body, and a flushing air valve 614, an air regulating needle valve 613 and a flushing solvent regulating valve 611 arranged on the valve body. A flushing solvent inlet 612 is provided on the valve body for inputting the cleaning medium, and the washing solvent regulating valve is used to control the amount of the cleaning medium input into the valve body. The flushing air valve 614 and the air regulating needle valve 613 are used to control and adjust the flow rate of the air so that the cleaning medium can be sprayed out at a high speed.

[0039] In a specific embodiment, the cleaning box 10 includes a box body 12 and a box cover 11, the box body 12 and the box cover 11 are sealed together, and the box body 12 is arranged on the base 20. The box body 12 is divided into a pneumatic control area 121, a first cleaning area 122 and a second cleaning area 123, and each area forms an independent cavity to avoid cross contamination between the cavities. An anti-corrosion sealing strip 14 is arranged between the box body 12 and the box cover 11, which can seal the box body 12 to prevent the cleaning medium from leaking. The box body 12 adopts a stainless steel structure and is easy to clean. Specifically, the box body 12 and / or the box cover 11 are provided with a receiving groove, and the anti-corrosion sealing strip 14 is installed in the receiving groove, and the sealing strip can be limited by the receiving groove. The box body 12 is connected to the base 20 by screws 21, and the number of screws 21 can be flexibly designed according to actual requirements, and is not limited here. In addition, the box cover 11 is hinged with the box body 12, and a handle 13 is provided on the side of the box cover 11 away from the hinge with the box body 12. The handle 13 is easy to hold, which is conducive to opening or closing the box cover 11 and convenient for maintenance. The box body 12 is correspondingly provided with a buckle to fix the position of the handle 13 to prevent the handle 13 from colliding with the box cover 11 and the box body 12, thereby damaging the outer wall of the cleaning box 10.

[0040] Specifically, a buffer 22 is provided between the base 20 and the box body 12. The buffer 22 is specifically a spring or a spring. When the buffer 22 is a spring, the spring is sleeved on the screw, and the two ends of the spring respectively abut the base 20 on the box body 12 to buffer the box body 12 and the base 20, which is beneficial to the cleaning of the robot and protects the box body 12. In this embodiment, an adapter 70 is provided at the position of the box body 12 corresponding to the second cleaning port 112, and at least one spray hole 71 connected to the outside of the box body 12 is provided in the middle of the adapter 70. The aperture of the spray hole 71 is relatively small, and a plurality of spray holes 71 are distributed in a ring shape. The spray gun 90 after cleaning can be dried through the spray hole 71, thereby shortening the cleaning and drying time and improving work efficiency. An O-ring is formed in the middle of the adapter 70 to seal the spray gun 90 to prevent the cleaning medium from overflowing during cleaning. The adapter 70 is fixed to the box cover 12 by screws. The box cover 12 is provided with a positioning hole 113 , and a screw passes through the mounting hole on the adapter 70 and extends into and is fixed in the positioning hole 113 .

[0041] Specifically, it also includes a waste liquid collection bin 63 and a discharge pipe 30. The waste liquid collection bin 63 is funnel-shaped and is located in the second cleaning area 123 and directly below the rotating nozzle 62. The discharge pipe 30 is located on the outer wall of the bottom of the box body 12, and the discharge pipe 30 is communicated with the discharge port of the waste liquid collection bin 63. The discharge pipe 30 is fixed to the base 20 by screws. The discharge pipe 30 is communicated with the waste liquid collection bin 63, which can be properly ventilated to prevent the cleaning medium in the cleaning box 10 from overflowing. The discharge pipe 30 can be connected to the waste solvent recovery system through the waste liquid pipeline, and the waste solvent can be stored centrally. The waste solvent can be reused after filtering, distillation and other treatments, which can greatly reduce the cost of cleaning solvents and reduce VOC emissions. In addition, a grounding wire 80 is provided on the outside of the box body 12 for grounding to ensure electrical safety.

[0042] In this embodiment, the spray gun 90 cleaning machine includes the above-mentioned automatic cleaning mechanism for the spray gun 90. The specific structure of the automatic cleaning mechanism for the spray gun 90 is referred to the above-mentioned embodiment, and will not be described in detail here. Since the spray gun 90 cleaning machine of this solution adopts the above-mentioned automatic cleaning mechanism for the spray gun 90, it has all the advantages and effects of the automatic cleaning mechanism for the spray gun 90.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic spray gun cleaning mechanism, characterized in that: include: A cleaning box, wherein the cleaning box is divided into a pneumatic control area, a first cleaning area and a second cleaning area in sequence, and a first cleaning port is opened at the top of the cleaning box corresponding to the first cleaning area, and a second cleaning port is opened at the top of the first cleaning area; A roller brush assembly, which is arranged in the first cleaning area and is used to brush the spray cap of the spray gun; A pneumatic control assembly, wherein the pneumatic control assembly is located in the pneumatic control area and is connected to the roller brush assembly; A rotating spray head assembly is arranged in the second cleaning area and is used for flushing the spray cap of the spray gun.

2. The automatic cleaning mechanism for a spray gun according to claim 1, characterized in that: The roller brush assembly includes a roller brush and a nozzle, the roller brush and the nozzle are spaced apart, and the cleaning solvent sprayed from the nozzle can wet the roller brush; the pneumatic control assembly includes an air control valve and a swing cylinder, the air control valve is arranged on the inner wall of the cleaning box, the air control valve is connected to the swing cylinder, and the swing cylinder is movably connected to the roller brush.

3. The automatic cleaning mechanism for a spray gun according to claim 2, characterized in that: The pneumatic control component also includes a swing cylinder needle valve, a micro direct-acting valve and a coupling. The swing cylinder needle valve is arranged on the outer wall of the cleaning box. The pneumatic control valve is respectively connected with the swing cylinder needle valve, the micro direct-acting valve and the swing cylinder to control the rotation of the swing cylinder; the micro direct-acting valve is connected with the swing cylinder to control the reversing rotation of the swing cylinder; the swing cylinder is movably connected with the roller brush through a coupling.

4. The automatic cleaning mechanism for a spray gun according to claim 2, characterized in that: It also includes a nozzle solvent regulating valve, which is arranged on the outer wall of the cleaning box and is communicated with the nozzle.

5. The automatic cleaning mechanism for a spray gun according to claim 1, characterized in that: The rotary nozzle assembly comprises an air-solvent switching valve and a rotary nozzle. The air-solvent switching valve is arranged on the outer wall of the cleaning box. The rotary nozzle is located in the cleaning box, and the rotary nozzle is communicated with the air-solvent switching valve.

6. The automatic cleaning mechanism for a spray gun according to claim 5, characterized in that: The air-solvent switching valve comprises a valve body, and a flushing air valve, an air regulating needle valve and a flushing solvent regulating valve which are arranged on the valve body.

7. The automatic cleaning mechanism for a spray gun according to claim 1, characterized in that: The cleaning box comprises a box body and a box cover, wherein the box body and the box cover are sealed together, and the box body is arranged on a base.

8. The automatic cleaning mechanism for a spray gun according to claim 7, characterized in that: A buffer is provided between the base and the box body; and / or An adapter is arranged at a position of the box body corresponding to the second cleaning port, and at least one spray hole communicating with the outside of the box body is arranged in the middle of the adapter.

9. The automatic cleaning mechanism for a spray gun according to claim 7, characterized in that: It also includes a waste liquid collection bin and a discharge pipe. The waste liquid collection bin is funnel-shaped and is located in the second cleaning area and directly below the rotating nozzle. The discharge pipe is located on the outer wall of the bottom of the box body and is connected to the discharge port of the waste liquid collection bin.

10. A spray gun cleaning machine, characterized in that: The spray gun cleaning machine comprises the automatic spray gun cleaning mechanism as described in any one of claims 1 to 9.

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