Paint mixing and spraying system and paint mixing and spraying method

Abstract

The present invention discloses a paint mixing and spraying system and a paint mixing and spraying method, belonging to the field of painting technology. The paint mixing and spraying system includes a pipeline system for transporting paint. Along the paint transportation direction, the pipeline system includes a front section and a rear section. The front section includes a curing agent section and a plurality of independent paint sections. The front section and the rear section are connected through a mixing section, and the curing agent section and the paint sections converge at the mixing section. The total length D of the pipeline system is a predetermined length, and the length D1 of the rear section is the minimum length required for paint ripening. When the total length of the pipeline system is fixed, the pipeline system is divided into a front section and a rear section. As much as possible, the length of the rear section is shortened and the length of the front section is correspondingly extended. The front section independently transports paint and curing agent, and the paint and curing agent converge at the mixing section, so that the paint and curing agent complete ripening in the rear section, and the paint can still be used normally. When different colors of paint need to be replaced, only the rear section needs to be cleaned, thereby saving the usage amount of cleaning solvent.

Description

Technical Field

[0001] The present invention relates to the technical field of painting, and particularly relates to a paint mixing and spraying system and a paint mixing and spraying method. Background Art

[0002] In the prior art, for painting large equipment, two-component paint is first mixed well, then pumped out by a power pump, and after passing through a connecting pipeline, it is sprayed out from a spray gun for spraying. After changing to paint of a different color, the pipeline between the power pump and the spray gun needs to be cleaned, consuming a large amount of cleaning solvent. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect that a large amount of cleaning solvent is consumed for cleaning the pipeline between the power pump and the spray gun in the prior art, and to provide a paint mixing and spraying system and a paint mixing and spraying method that save the usage amount of cleaning solvent.

[0004] The present invention solves the above technical problem through the following technical solutions:

[0005] A paint mixing and spraying system, the paint mixing and spraying system includes a pipeline system for transporting paint. Along the paint transport direction, the pipeline system includes a front section and a rear section. The front section includes a curing agent section and a plurality of independent paint sections. The front section and the rear section are connected through a mixing part, and the curing agent section and the paint sections converge at the mixing part; the total length D of the pipeline system is a predetermined length, and the length D1 of the rear section is the minimum length required for paint ripening.

[0006] On the one hand, painting large equipment requires a relatively large operating space, and the pipeline system for transporting paint is also relatively long. However, on the premise of meeting the spraying requirements, the total length of the pipeline system will also be controlled within a predetermined length to save costs; on the other hand, the ripening time of two-component paint is fixed. By calculating the flow rate of the paint in the pipeline, the minimum length required for the paint to complete ripening in the pipeline can also be determined. Therefore, in this solution, on the premise that the total length D of the pipeline system is certain, the pipeline system is divided into a front section and a rear section. The length D1 of the rear section is the minimum length required for paint ripening, that is, the length of the rear section is shortened as much as possible, and correspondingly, the length of the front section is extended as much as possible. The front section independently transports paint and curing agent, and the paint and curing agent converge and mix at the mixing part, so that the paint and curing agent complete ripening in the rear section, and the paint can still be used normally; when it is necessary to change to paint of a different color, if the paint is first mixed and ripened and then pumped out for spraying, the entire length of the pipeline system needs to be cleaned, while in this solution, only the rear section needs to be cleaned, thus saving the usage amount of cleaning solvent.

[0007] Preferably, the rear section is detachable so that the length of the rear section is adjustable.

[0008] In this solution, when changing the paint of different varieties, the aging time may be different. The rear section is detachable and its length can be adjusted, so that the paint mixing and spraying system can be applicable to paints of different varieties.

[0009] Preferably, the paint mixing and spraying system further includes a power pump, and the front section is connected to the power pump.

[0010] In this solution, by connecting the power pump to the front section (or each component section in the front section), power is provided for transporting paints and the like in the front section, meeting the requirements of long-distance transportation.

[0011] Preferably, the curing agent section is separately connected to the mixing section, and multiple paint sections are connected to the color-changing section, and the color-changing section is connected to the mixing section.

[0012] In this solution, a color-changing section is arranged between multiple paint sections and the mixing section, making the paint mixing and spraying system modular, facilitating fault detection and maintenance replacement.

[0013] Preferably, the front section further includes a cleaning solvent section, and the cleaning solvent section is connected to the color-changing section.

[0014] In this solution, through the above structural form, the cleaning solvent can clean the color-changing section, the mixing section and the rear section under the action of the power pump, without disassembling the rear section from the mixing section for cleaning.

[0015] Preferably, control valves are provided on the curing agent section, the paint section and the cleaning solvent section.

[0016] In this solution, the opening and closing of the curing agent section, the paint section and the cleaning solvent section can be controlled through the control valves, thereby adjusting different working states of the paint mixing and spraying system.

[0017] Preferably, the paint mixing and spraying system further includes an automatic spraying device. A spray gun is provided at the operation end of the automatic spraying device, and the spray gun is connected to the end of the rear section.

[0018] In this solution, the automatic spraying device can replace manual labor to complete spraying, improving spraying efficiency.

[0019] Preferably, the spray gun can move freely in three directions of X, Y and Z.

[0020] In this solution, the spray gun can move freely in three directions of X, Y and Z, enabling the spray gun to move omnidirectionally in three-dimensional space and meeting the requirements of comprehensive spraying of the equipment.

[0021] Preferably, the maximum moving distances of the spray gun in the X, Y, and Z directions are predetermined values d1, d2, and d3 respectively, and the total length D of the pipeline system is D = d1 / 2 + d2 + d3.

[0022] In this solution, the power pump is arranged on the ground below the midpoint of the moving path of the spray gun in the X direction. The total length D of the pipeline system is D = d1 / 2 + d2 + d3, which can minimize the total length D of the pipeline system while enabling the spray gun to cover all spraying positions.

[0023] A paint mixing and spraying method uses the paint mixing and spraying system as described above. The paint mixing and spraying method includes the following steps:

[0024] S1: Open a certain paint section and the curing agent section in the paint section for spraying operations;

[0025] S2: Close the paint section and the curing agent section in S1;

[0026] S3: Open the cleaning solvent section to clean the color-changing part, the mixing part, and the rear section;

[0027] S4: Close the cleaning solvent section;

[0028] S5: Open another paint section and the curing agent section in the paint section for spraying operations again.

[0029] The positive and progressive effects of the present invention are as follows:

[0030] On the premise that the total length D of the pipeline system is certain, the pipeline system is divided into two parts: the front section and the rear section. The length D1 of the rear section is the minimum length required for paint ripening, that is, the length of the rear section is shortened as much as possible, and correspondingly, the length of the front section is extended as much as possible. The front section independently transports the paint and the curing agent, and the paint and the curing agent converge and mix in the mixing part, and the paint and the curing agent complete ripening in the rear section, which can also make the paint be used normally; when it is necessary to change the paint of different colors, only the rear section needs to be cleaned, thereby saving the usage amount of the cleaning solvent. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the automatic spraying equipment in the preferred embodiment of the present invention.

[0032] Figure 2 It is a schematic connection diagram of the pipeline system in the preferred embodiment of the present invention.

[0033] Figure 3 It is a schematic flow diagram of the paint mixing and spraying method in the preferred embodiment of the present invention.

[0034] Description of the Reference Numerals:

[0035] X-direction guide rail 101

[0036] Y-direction guide rail 102

[0037] Z-direction telescopic arm 103

[0038] Paint gun 104

[0039] Paint supply system frame 200

[0040] Power pump 300

[0041] Hardener barrel 401

[0042] First paint barrel 402

[0043] Second paint barrel 403

[0044] Cleaning solvent barrel 404

[0045] Hardener section 501

[0046] First paint section 502

[0047] Second paint section 503

[0048] Cleaning solvent section 504

[0049] Rear section 600

[0050] Mixing section 700

[0051] Color-changing section 800

[0052] Control valve 900

[0053] X direction

[0054] Y direction

[0055] Z direction Specific implementation manner

[0056] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments accordingly.

[0057] As Figure 1 and Figure 2 shown, this embodiment provides a paint mixing and spraying system, which includes a hardener barrel 401, paint barrels, a cleaning solvent barrel 404, a power pump 300, a pipeline system for transporting paint, a mixing section 700, a color-changing section 800, and an automated spraying device.

[0058] Specifically, as Figure 1As shown in the figure, the automatic spraying equipment includes a paint supply system rack 200, an X-direction guide rail 101, a Y-direction guide rail 102, a Z-direction telescopic arm 103, and a spray gun 104. The X-direction guide rail 101 is respectively arranged above both sides of the painting room, and the length of the X-direction guide rail 101 is d1; the Y-direction guide rail 102 is arranged between the two X-direction guide rails 101 and can slide freely along the length direction of the X-direction guide rail 101, and the length of the Y-direction guide rail 102 is d2; the Z-direction telescopic arm 103 is arranged below the Y-direction guide rail 102 and can slide freely along the length direction of the Y-direction guide rail 102, and the length of the Z-direction telescopic arm 103 is d3; the length of the Z-direction telescopic arm 103 is adjustable, and the operating end of the Z-direction telescopic arm 103 is provided with a spray gun 104. Thus, the spray gun 104 can move freely in the X, Y, and Z directions, and the farthest moving distances of the spray gun 104 in the X, Y, and Z directions are d1, d2, and d3 respectively. The paint supply system rack 200 extends downward from the midpoint of one X-direction guide rail 101, and a power pump 300 is arranged between the paint supply system rack 200 and the ground.

[0059] In this embodiment, the automatic spraying equipment can be any equipment with a control system that can automatically control the displacement of the spray gun 104 in the X, Y, and Z directions and spray paint, such as a cantilever spraying robot, etc.

[0060] The pipeline system for transporting paint is laid along the structure of the automatic spraying equipment. Starting from the power pump 300, it passes through the paint supply system rack 200, arranges half of the X-direction length along the side wall of the X-direction track, arranges to cover the entire Y-direction length along the Y-direction guide rail 102, and then extends downward through the Z-direction telescopic arm 103 to the spray gun 104 on the operating end and is docked with it.

[0061] Specifically, along the paint transportation direction, the pipeline system includes a front section and a rear section 600. The front section is connected to the power pump 300, and the rear section 600 is connected to the spray gun 104. The front section includes a curing agent section 501 and multiple independent paint sections. The front section and the rear section 600 are connected through a mixing section 700, and the curing agent section 501 and the paint sections converge at the mixing section 700. The total length D of the pipeline system is a predetermined length, and the length D1 of the rear section 600 is the minimum length required for paint ripening.

[0062] The length of the pipeline system for transporting paint needs to enable the spray gun 104 to fully cover the spraying position. To save costs, the total length of the pipeline system will be controlled within a predetermined length. On the premise of being limited by the structure of the automatic spraying equipment, the minimum length required for the pipeline system can be determined. In this implementation, in view of the laying method of the pipeline system, the total length D of the pipeline system is set to D = d1 / 2 + d2 + d3 to minimize the total length of the pipeline system.

[0063] In addition, the curing time of the two-component paint is fixed. By calculating the flow rate of the paint in the pipeline, the minimum length required for the paint to complete curing in the pipeline can also be determined. Thus, on the premise that the total length D of the pipeline system is fixed, the pipeline system is divided into a front section and a rear section 600. The length D1 of the rear section 600 is the minimum length required for the paint to cure, that is, the length of the rear section 600 is shortened as much as possible, and correspondingly, the length of the front section is extended as much as possible. The front section independently conveys the paint and the curing agent, and the paint and the curing agent are made to converge and mix in the mixing section 700, so that the paint and the curing agent complete curing in the rear section 600, and the paint can still be used normally. When different colors of paint need to be replaced, if the paint is first mixed and cured and then pumped out for spraying, the entire length of the pipeline system needs to be cleaned, while in this embodiment, only the rear section 600 (i.e., the pipeline between the mixing section 700 and the spray gun 104) needs to be cleaned, thus saving the usage amount of the cleaning solvent.

[0064] Specifically, as Figure 2 shown, in this embodiment, two different colors of the same variety of paint are selected for use. Therefore, the front section includes a curing agent section 501 and independent first paint section 502 and second paint section 503. Correspondingly, in this embodiment, the paint mixing and spraying system further includes a curing agent bucket 401, a first paint bucket 402, a second paint bucket 403, and a cleaning solvent bucket 404. In other alternative embodiments, according to the actual painting requirements and the number of interfaces of the power pump 300, the paint sections can be divided into other numbers.

[0065] Along the flow direction of the paint usage, the curing agent bucket 401, the first paint bucket 402, the second paint bucket 403, and the cleaning solvent bucket 404 are respectively connected to the power pump 300. After being pressurized by the power pump 300, the curing agent, the first paint, the second paint, and the cleaning solvent respectively enter the curing agent section 501, the first paint section 502, the second paint section 503, and the cleaning solvent section 504 in the front section. At the end of the front section, the curing agent section 501 is separately connected to the mixing section 700, and the first paint section 502, the second paint section 503, and the cleaning solvent section 504 are respectively connected to the color-changing section 800. The color-changing section 800 is then connected to the mixing section 700. A rear section 600 is connected after the mixing section 700 for the paint and the curing agent to be fully mixed and cured, and the end of the rear section 600 is connected to a spray gun 104. In this embodiment, the color-changing section 800 and the mixing section 700 can be any containers with a certain volume and provided with inlet and outlet interfaces.

[0066] The first paint section 502, the second paint section 503, and the cleaning solvent section 504 are connected to the color-changing section 800, modularizing the paint mixing and spraying system, facilitating fault detection and maintenance replacement. Moreover, the cleaning solvent can clean the color-changing section 800, the mixing section 700, and the rear section 600 under the action of the power pump 300, without disassembling the rear section 600 from the mixing section 700 for cleaning.

[0067] Furthermore, control valves 900 are provided on the curing agent section 501, the first paint section 502, the second paint section 503, and the cleaning solvent section 504 to control opening and closing, so as to adjust the paint mixing and spraying system to enter different working states.

[0068] Furthermore, the rear section 600 is detachable, so that the length of the rear section 600 is adjustable. When changing paints of different varieties, the curing time may be different. The detachable rear section 600 with adjustable length enables the paint mixing and spraying system to be applicable to different varieties of paints. In this embodiment, the rear section 600 is composed of multiple detachably connected segments, and the lengths of the segments are different, and multiple spare segments of different lengths are provided. The length of the rear section 600 is adjustable by splicing segments of different lengths. In other alternative embodiments, the rear section 600 can also be selected as integral pipes of different lengths and replaced as a whole according to requirements.

[0069] As Figure 3 shown, this embodiment also provides a paint mixing and spraying method, which uses the above paint mixing and spraying system. Specifically, it includes the following steps:

[0070] S1: Open the first paint section 502 and the curing agent section 501 for spraying operations;

[0071] S2: Close the first paint section 502 and the curing agent section 501;

[0072] S3: Open the cleaning solvent section 504 to clean the color-changing section 800, the mixing section 700, and the rear section 600;

[0073] S4: Close the cleaning solvent section 504;

[0074] S5: Open the second paint section 503 and the curing agent section 501 to perform spraying operations again.

[0075] Specifically, the opening and closing of each pipe section are achieved by opening and closing the control valve 900; of course, in S1, the power pump 300 also needs to be started to provide power, and at this time, the first paint can be used for spraying operations; in S3, after cleaning the first paint in the color-changing section 800, the mixing section 700, and the rear section 600, then S4 is carried out; in S5, the second paint can be used for spraying operations.

[0076] In other alternative embodiments, when the number in the paint segment is greater than 2, by the same token, referring to Steps 2 to 5, the cleaning of the color-changing section 800, the mixing section 700 and the rear section 600 is completed, and other paint segments can be replaced and opened.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation on the present invention.

[0078] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A paint mixing and spraying system, the paint mixing and spraying system comprising a pipeline system for transporting paint, characterized in that, along the paint transport direction, the pipeline system comprises a front section and a rear section, the front section includes a curing agent section and a plurality of independent paint sections, the front section and the rear section are connected by a mixing section, and the curing agent section and the paint sections converge at the mixing section; the total length D of the pipeline system is a predetermined length, and the length D1 of the rear section is the minimum length required for paint ripening; the curing agent section is separately connected to the mixing section, a plurality of the paint sections are connected to a color-changing section, and the color-changing section is connected to the mixing section; the front section further includes a cleaning solvent section, and the cleaning solvent section is connected to the color-changing section; control valves are provided on the curing agent section, the paint sections and the cleaning solvent section.

2. The paint mixing and spraying system according to claim 1, characterized in that, the rear section is detachable so that the length of the rear section is adjustable.

3. The paint mixing and spraying system according to claim 1, characterized in that, the paint mixing and spraying system further includes a power pump, and the front section is connected to the power pump.

4. The paint mixing and spraying system according to claim 1, characterized in that, the paint mixing and spraying system further includes an automated spraying device, a spray gun is provided at an operating end of the automated spraying device, and the spray gun is connected to an end of the rear section.

5. The paint mixing and spraying system according to claim 4, characterized in that, the spray gun can move freely in three directions of X, Y and Z.

6. The paint mixing and spraying system according to claim 5, characterized in that, the maximum moving distances of the spray gun in the three directions of X, Y and Z are predetermined values d1, d2 and d3 respectively, and the total length D of the pipeline system = d1 / 2 + d2 + d3.

7. A paint mixing and spraying method, characterized in that, the paint mixing and spraying method uses the paint mixing and spraying system according to any one of claims 1-6, and the paint mixing and spraying method comprises the following steps: S1: Open a certain paint section and the curing agent section in the paint sections to perform a spraying operation; S2: Close the paint section and the curing agent section in S1; S3: Open the cleaning solvent section to clean the color-changing section, the mixing section and the rear section; S4: Close the cleaning solvent section; S5: Open another paint section and the curing agent section in the paint sections to perform a spraying operation again.

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