A matrix bead-walking type quick color changing system for paint supply

Abstract

The application relates to the field of paint supply technology, in particular to a matrix bead walking type quick color changing system for paint supply, which comprises a paint supply unit, a main pipe bead walking unit, a branch pipe bead walking unit and a cleaning unit. The paint supply unit comprises a paint supply barrel, a paint supply pump and an annular paint supply pipeline for paint flow. The main pipe bead walking unit comprises a main pipe pipeline, a main pipe bead emitting unit for emitting main pipe beads, a main pipe bead receiving unit for receiving main pipe beads and a matrix distribution unit arranged between the main pipe bead emitting unit and the main pipe bead receiving unit. The branch pipe bead walking unit comprises a branch pipe pipeline, a branch pipe bead emitting unit for emitting branch pipe beads and a branch pipe bead receiving unit for receiving branch pipe beads and spraying paint. The cleaning unit is mainly used for cleaning the used beads by using high-pressure air and solvent and the like. The main pipe bead walking unit and the branch pipe bead walking unit are connected through a paint branch pipe. The application has the effect of reducing the pipeline and thus reducing the maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of paint supply technology, in particular to a matrix bead walking type quick color changing system for paint supply. BACKGROUND

[0002] At present, the paint spraying process in the field of automobile whole vehicle and automobile bumper mainly uses a main pipe bead walking system, which includes a paint supply module, a paint recovery module, a primary cleaning module, a secondary cleaning module, a blow-drying module, a waste liquid collection module, and a control module. The paint supply module is provided with a plurality of branch pipes, and the primary cleaning module, the secondary cleaning module, the blow-drying module, and the waste liquid collection module are connected to each branch pipe.

[0003] The paint recovery module is used to output gas after color changing and to blow back the paint in the branch pipe to the corresponding main pipe. The primary cleaning module is used to output gas and organic solvent after paint recovery and to clean the branch pipe. The secondary cleaning module is used to output water and to clean the branch pipe. The blow-drying module is used to output gas and to dry the branch pipe after secondary cleaning. The waste liquid collection module is used to receive waste liquid discharged during the cleaning process of the primary cleaning module and the secondary cleaning module. The control module is used to control the working state of all modules.

[0004] According to the related technology in the above, the inventors believe that a single set of main pipe bead walking system needs to be equipped with a set of pipe for connection with the branch pipe of the main pipe bead walking system. If a single shift needs to spray a large number of special small colors, a plurality of sets of main pipe bead walking systems need to be configured, and the robot needs to be equipped with a plurality of sets of branch pipes and color changing valves for connection, so that the distribution station of the plurality of sets of main pipe bead walking systems has a large layout space, the pipe arrangement is messy, the process arm of the robot has a tight layout space, there are too many pipes, and the maintenance cost is high. SUMMARY

[0005] In order to reduce the pipe and thus reduce the maintenance cost, the present application provides a matrix bead walking type quick color changing system for paint supply.

[0006] The present application provides a matrix bead walking type quick color changing system for paint supply, which adopts the following technical solution:

[0007] A matrix bead walking type quick color changing system for paint supply includes a paint supply unit, including a supply tank, a supply pump for sucking paint from the supply tank, and an annular paint supply pipe for paint flow.

[0008] The main pipe ball unit includes a main pipe line, a main pipe ball launching unit for storing and launching the main pipe ball, a main pipe ball receiving unit for receiving the main pipe ball, and a matrix distribution unit arranged between the main pipe ball launching unit and the main pipe ball receiving unit.

[0009] The branch pipe ball unit includes a branch pipe line, a branch pipe ball launching unit for storing and launching the branch pipe ball, and a branch pipe ball receiving unit for receiving the branch pipe ball and for paint spraying.

[0010] The cleaning unit is mainly used for cleaning the used ball with high-pressure air and solvent.

[0011] The main pipe ball unit and the branch pipe ball unit are connected through paint branch pipes, the main pipe line includes a main pipe 1, a main pipe 2, and a main pipe 3, and the branch pipe line includes a first branch pipe and a second branch pipe.

[0012] When paint spraying is performed, paint in the supply tank is sucked by a supply pump and then flows into the main pipe ball launching unit. The main pipe ball with paint is launched by the main pipe ball launching unit, passes through the main pipe 1 or the main pipe 2 or the main pipe 3, and reaches the main pipe ball receiving unit. After the main pipe line is filled with paint, the matrix distribution unit in the middle of the system controls the paint to be delivered to the first branch pipe and the second branch pipe according to different requirements, so that the paint enters the branch pipe ball launching unit and is then launched to the branch pipe ball receiving unit. When the main pipe 1, the main pipe 2, and the main pipe 3 are filled with paint of different colors, the paint in the branch pipe ball launching unit is filled into the main pipe 1 and the main pipe 2. When paint spraying of one branch pipe in the branch pipe ball launching unit is completed, the branch pipe can be quickly cleaned by the cleaning unit. After the branch pipe is cleaned, the paint in the main pipe 3 is filled into the branch pipe, and paint spraying of the other branch pipe can be quickly switched to the paint spraying of the branch pipe. When the branch pipe is sprayed, the main pipe 2 and the other branch pipe that have completed paint spraying are cleaned, and new color paint is replaced. This cycle can be used to spray paint of different colors, improve efficiency, reduce the number of pipes, and thus reduce maintenance costs.

[0013] Preferably, the main pipe ball launching unit is provided with two main pipe balls, a main pipe ball sensor is arranged at a position corresponding to the main pipe ball, a main pipe ball cleaning unit is arranged inside the main pipe ball launching unit, and solvent after the main pipe ball is cleaned by the main pipe ball cleaning unit is discharged through a first main pipe ball waste pipe.

[0014] The main pipe ball receiving unit is provided with two main pipe ball receiving positions for receiving the main pipe ball, a main pipe ball sensor is arranged at a corresponding position of each main pipe ball receiving position, a main pipe ball cleaning unit is also arranged inside the main pipe ball receiving unit, and the solvent used for cleaning the main pipe ball in the main pipe ball receiving unit is discharged through the second main pipe ball waste liquid pipeline.

[0015] One main pipe ball emitting unit corresponds to one main pipe line and one main pipe ball receiving unit, the main pipe ball emitting unit, the main pipe line and the main pipe ball receiving unit form a group, and there are three groups according to the number of main pipe lines.

[0016] By using the above technical scheme, the main pipe ball sensor is mainly used for sensing the position of the main pipe ball, determining whether the main pipe ball is emitted or received, and cleaning the used main pipe ball in the main pipe ball emitting unit and the main pipe ball receiving unit. The solvent after cleaning is discharged through the first main pipe ball waste liquid pipeline and the second main pipe ball waste liquid pipeline. The three groups of main pipe lines, main pipe ball emitting units and main pipe ball receiving units meet the demand of timely color changing, can avoid the situation that one color corresponds to one group of pipe lines, save space and reduce maintenance cost.

[0017] Preferably, the first branch pipe and the second branch pipe are arranged in parallel, and the first branch pipe and the second branch pipe are in communication with a plurality of main pipe lines. The plurality of main pipe lines are arranged in parallel in the matrix distribution unit, and the communication positions of the first branch pipe, the second branch pipe and the main pipe line are located in the matrix distribution unit.

[0018] The first air input pipe and the first solvent input pipe are in communication with the first air input port and the first solvent input port.

[0019] By using the above technical scheme, the first branch pipe and the second branch pipe correspond to different branch pipe ball emitting units respectively, and are in communication with the main pipe line, so as to facilitate multi-color spraying. The first air input port and the first solvent input port are mainly used for controlling the operation of the ball in the matrix distribution unit.

[0020] Preferably, the first branch pipe and the second branch pipe are in communication with the main pipe line and the branch pipe ball emitting unit. The branch pipe ball emitting unit is internally provided with a branch pipe A and a branch pipe B. The branch pipe A and the branch pipe B are arranged corresponding to the first branch pipe and the second branch pipe. Two branch pipe balls are arranged in the branch pipe A and the branch pipe B. A branch pipe ball sensor is arranged corresponding to the position of the branch pipe ball. A pneumatic valve control switch is also arranged corresponding to the branch pipe ball of the branch pipe A and the branch pipe B.

[0021] The branch pipe bead receiving unit is provided with two branch pipe bead receiving positions for receiving the branch pipe beads, and a branch pipe bead sensor is arranged at a corresponding position of each of the branch pipe bead receiving positions; a branch pipe bead cleaning unit is arranged in the branch pipe bead receiving unit and the branch pipe bead emitting unit, and the solvent used for cleaning the branch pipe beads is discharged through a branch pipe bead waste liquid pipeline.

[0022] By adopting the above technical scheme, the main pipe beads supply paint to the matrix distribution unit through the multiple sets of paint supply units, and the paint in two of the main pipe lines is delivered to the first branch pipe and the second branch pipe through the matrix distribution unit for spraying operation, and after the spraying is completed, the first branch pipe or the second branch pipe is cleaned by using the branch pipe line cleaning unit; after the cleaning is completed, the paint in the third main pipe line is delivered to the robot branch pipe line for waiting for spraying, so that continuous spraying without loss of rhythm is realized for multiple special small colors.

[0023] Preferably, the branch pipe bead emitting unit is communicated with a second solvent input pipe for cleaning the branch pipe line and the branch pipe beads, the second solvent input pipe is arranged around the branch pipe line, and the second solvent input pipe is communicated with a second solvent input port.

[0024] By adopting the above technical scheme, the second solvent input pipe is mainly used for adding solvent to clean the branch pipe line, so as to facilitate color changing.

[0025] Preferably, a spraying room wall plate is arranged between the branch pipe bead emitting unit and the branch pipe bead receiving unit, one side of the spraying room wall plate is a spraying room, and the branch pipe bead receiving unit is located in the spraying room.

[0026] A plurality of pneumatic valve control switches (326) for controlling the branch pipe beads are arranged in the branch pipe bead receiving unit, and a paint spraying pipe is arranged in the branch pipe bead receiving unit, and a plurality of spray valves are arranged on the paint spraying pipe.

[0027] By adopting the above technical scheme, the pneumatic valve switch is used for controlling the movement of the branch pipe beads, and the spray valve is mainly used for spraying paint, all the paint spraying work is carried out in the spraying room, and the spraying room wall plate is used for separating a workroom for color spraying, so as to facilitate maintenance and cleaning in the later period.

[0028] Preferably, the cleaning unit is communicated with the branch pipe bead receiving unit, and the cleaning unit is communicated with a third solvent input port, a second air input port and a first high-pressure air input port.

[0029] By adopting the above technical scheme, the third solvent input port, the second air input port and the first high-pressure air input port are used for inputting solvent, air and high-pressure air in the whole system, and are used for providing cleaning materials for cleaning the main pipe line, the branch pipe line, the main pipe bead and the branch pipe bead in the whole system, so as to facilitate cleaning.

[0030] Preferably, the third solvent input port, the second air input port and the first high-pressure air input port are provided with one-way valves between the cleaning unit.

[0031] By adopting the above technical scheme, the one-way valves enable the solvent, air and high-pressure air to only enter but not exit, and also satisfy the condition that the solvent, air and high-pressure air do not interfere with each other.

[0032] Preferably, the feed tank is provided with a pneumatic stirrer and a liquid level meter, and a pump cleaning unit is arranged between the feed tank and the feed pump.

[0033] By adopting the above technical scheme, the liquid level meter is mainly used for observing the remaining amount of paint in the feed tank, and the pump cleaning unit is mainly used for cleaning the feed pump during color changing to avoid color mixing.

[0034] Preferably, a filter unit and a flow meter are arranged between the main tube bead shooting unit and the feed pump along the flow direction of the paint.

[0035] By adopting the above technical scheme, the flow meter can be used for observing the amount of paint flowing out and controlling the amount of paint used.

[0036] In summary, the present application has at least one of the following beneficial technical effects:

[0037] 1. When painting, the paint in the feed tank is sucked by the feed pump, and then flows into the main tube bead shooting unit. The main tube bead with paint is shot by the main tube bead shooting unit, passes through the main tube line 1 or the main tube line 2 or the main tube line 3, and reaches the main tube bead receiving unit. After the main tube line is filled with paint, the matrix distribution unit in the system controls the paint to be delivered to the first branch pipe and the second branch pipe according to different requirements, so that the paint enters the branch pipe bead shooting unit and is then shot to the branch pipe bead receiving unit. When the main tube line 1, the main tube line 2 and the main tube line 3 are filled with different colors of paint, the paint in the branch pipe of the branch pipe bead shooting unit is filled with the paint of the main tube line 1 and the main tube line 2. When the paint in one branch pipe of the branch pipe bead shooting unit is sprayed, the branch pipe can be quickly cleaned by the cleaning unit. After the branch pipe is cleaned, the paint of the main tube line 3 is filled into the branch pipe, and the paint spraying of the other branch pipe can be quickly switched. When the branch pipe is sprayed, the main tube line 2 and the other branch pipe that have completed spraying are cleaned, and new color paint is replaced. This cycle realizes continuous spraying of multiple special small colors without loss of rhythm, improves efficiency, reduces pipelines, and further reduces maintenance costs.

[0038] 2. The main tube walk-bead sensor is mainly used for sensing the position of the main tube walk-bead, determining whether the main tube walk-bead is emitted or received, and cleaning the used main tube walk-bead in the main tube walk-bead emission unit and the main tube walk-bead receiving unit. The solvent after cleaning is discharged through the first main tube walk-bead waste liquid pipeline and the second main tube walk-bead waste liquid pipeline. The three groups of main tube pipelines, the main tube walk-bead emission unit and the main tube walk-bead receiving unit meet the demand of timely color changing, which can avoid the appearance of one color and one group of pipelines, save space and reduce maintenance cost.

[0039] 3. The main tube walk-bead supplies paint to the matrix distribution unit through multiple sets of paint supply units, and supplies paint of two main pipelines to the first branch pipe and the second branch pipe through the matrix distribution unit for spraying operation. After spraying, the first branch pipe or the second branch pipe is cleaned by the branch pipe pipeline cleaning unit. After cleaning, the paint of the third main pipeline is supplied to the robot branch pipe pipeline for spraying, realizing continuous spraying of multiple special small colors without loss of rhythm. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is the overall structure schematic diagram of a matrix walk-bead type fast color changing system for paint supply in the embodiment of the present application;

[0041] Figure 2 is the structure schematic diagram of the paint supply unit to the main tube walk-bead emission unit in the embodiment of the present application;

[0042] Figure 3 is the structure schematic diagram of the main tube walk-bead unit in the embodiment of the present application;

[0043] Figure 4 is the structure schematic diagram of the matrix distribution unit and the branch pipe walk-bead emission unit in the embodiment of the present application;

[0044] Figure 5 is the structure schematic diagram of the branch pipe walk-bead receiving unit to the cleaning unit in the embodiment of the present application.

[0045] Explanation of reference signs: 1, paint supply unit; 11, paint supply tank; 12, paint supply pump; 13, annular paint supply pipeline; 131, inlet end; 132, outlet end; 14, pneumatic agitator; 15, liquid level meter; 16, pump cleaning unit; 17, pump cleaning waste liquid pipeline; 18, filtration unit; 19, flow meter; 2, main pipeline bead running unit; 21, main pipeline; 211, main pipeline 1; 212, main pipeline 2; 213, main pipeline 3; 22, main pipeline bead launching unit; 221, main pipeline bead; 222, main pipeline bead sensor; 223, first main pipeline bead waste liquid pipeline; 23, main pipeline bead receiving unit; 231, main pipeline bead receiving position; 232, second main pipeline bead waste liquid pipeline; 3, branch pipeline bead running unit; 31, branch pipeline; 311, first branch pipeline; 312, second branch pipeline; 32, branch pipeline bead launching unit; 321, branch pipeline A; 322, branch pipeline B; 323, branch pipeline bead; 324, branch pipeline bead sensor; 325, second solvent input port; 326, pneumatic valve control switch; 33, branch pipeline bead receiving unit; 331, branch pipeline bead receiving position; 332, branch pipeline bead waste liquid pipeline; 333, injection valve; 4, cleaning unit; 41, third solvent input port; 42, second air input port; 43, first high-pressure air input port; 44, one-way valve; 5, matrix distribution unit; 51, first air input port; 52, first solvent input port; 6, spray booth wall panel. DETAILED DESCRIPTION

[0046] The following description will be made in conjunction with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0047] The embodiment of the present application discloses a matrix bead running type fast color changing system for paint supply. Referring to Figure 1 , the matrix bead running type fast color changing system comprises a paint supply unit 1 for providing paint, a main pipeline bead running unit 2 in communication with the paint supply unit 1, a branch pipeline bead running unit 3 in communication with the main pipeline bead running unit 2 for coloration, and a cleaning unit 4 for cleaning the whole system.

[0048] Referring to Figure 1 and Figure 2The paint supply unit 1 comprises a paint supply tank 11, a paint supply pump 12 for sucking paint from the paint supply tank 11, and a ring-shaped paint supply pipeline 13 for paint flow. A pneumatic agitator 14 and a liquid level gauge 15 are installed on the tank cover of the paint supply tank 11. The pneumatic agitator 14 is used to mix the paint in the paint supply tank 11 uniformly, and the liquid level gauge 15 is mainly used to observe the remaining amount of paint in the paint supply tank 11. The two ends of the ring-shaped paint supply pipeline 13 are arranged in the paint supply tank 11, one end being an inlet end 131 and the other end being an outlet end 132. During operation, the paint in the paint supply tank 11 flows from the inlet end 131 to the outlet end 132 through the ring-shaped paint supply pipeline 13. The paint supply pump 12 is arranged at the inlet end 131 of the ring-shaped paint supply pipeline 13. A pump cleaning unit 16 is arranged between the paint supply pump 12 and the paint supply tank 11, which is used to clean the paint in the paint supply pump 12, facilitating color change. The waste liquid after cleaning is discharged through a pump cleaning waste liquid pipeline 17. A filter unit 18 and a flow meter 19 are arranged in sequence after the paint supply pump 12 in the flow direction of the paint. The filter unit 18 is used to filter the paint, and the flow meter 19 is used to observe the amount of paint, facilitating control.

[0049] Referring to Figure 2 and Figure 3 The main tube bead unit 2 comprises a main tube pipeline 21, a main tube bead emitting unit 22 arranged on the ring-shaped paint supply pipeline 13, and a main tube bead receiving unit 23 for receiving the main tube beads 221. The main tube bead emitting unit 22 is arranged between the outlet end 132 and the flow meter 19. Two main tube beads 221 are arranged inside the main tube bead emitting unit 22. A main tube bead sensor 222 is arranged corresponding to the position of the main tube beads 221. A main tube bead cleaning unit is also arranged in the main tube bead emitting unit 22. After the main tube beads 221 pass through the main tube bead cleaning unit, the solvent is discharged through a first main tube bead waste liquid pipeline 223.

[0050] Referring to Figure 2 and Figure 3The main tube bead receiving unit 23 is provided with two main tube bead receiving positions 231 for receiving the main tube beads 221. A main tube bead sensor 222 is arranged at a corresponding position of each main tube bead receiving position 231. The main tube bead receiving unit 23 is also provided with a main tube bead cleaning unit. After the main tube beads 221 are cleaned in the main tube bead cleaning unit of the main tube bead receiving unit 23, waste solvent is discharged through a second main tube bead waste liquid pipeline 232. A matrix distribution unit 5 is arranged between the main tube bead emitting unit 22 and the main tube bead receiving unit 23. The matrix distribution unit 5 is connected to the main tube bead unit 2 and the branch tube bead unit 3. The matrix distribution unit 5 is also provided with a first air input pipeline and a first solvent input pipeline. The first air input pipeline is connected to a first air input port 51, and the first solvent input pipeline is connected to a first solvent input port 52.

[0051] With reference to Figure 4 and Figure 5 The branch tube bead unit 3 includes a branch tube pipeline 31 connected to the matrix unit, a branch tube bead emitting unit 32 connected to the branch tube pipeline 31, and a branch tube bead receiving unit 33 for receiving branch tube beads 323 and for spraying paint. The branch tube pipeline 31 includes a first branch tube 311 and a second branch tube 312. The first branch tube 311 and the second branch tube 312 are arranged in parallel and are connected to the plurality of main tube pipelines 21. The connection positions of the first branch tube 311, the second branch tube 312, the main tube pipeline 1211, the main tube pipeline 2212, and the main tube pipeline 3213 are arranged in the matrix distribution unit 5. The first branch tube 311 and the second branch tube 312 are connected to the branch tube bead emitting unit 32. In this embodiment, the first branch tube 311 is taken as an example for description. The branch tube bead emitting unit 32 is provided with a branch tube A 321 and a branch tube B 322. The branch tube A 321 and the branch tube B 322 are each provided with two branch tube beads 323. A branch tube bead sensor 324 is arranged at a corresponding position of each branch tube bead 323. The branch tube A 321 and the branch tube B 322 are also provided with a pneumatic valve control switch 326 corresponding to the branch tube bead 323. The pneumatic valve control switch 326 is used to control the emission of the branch tube bead 323.

[0052] With reference to Figure 4 and Figure 5The second solvent input pipe for cleaning the branch pipe 31 and the branch bead 323 is arranged at the branch bead shooting unit 32, and the second solvent input port 325 is communicated with the second solvent input pipe. The branch bead receiving unit 33 is arranged on the side of the branch bead A 321 and the branch bead B 322 away from the branch bead shooting unit 32, and the branch bead receiving unit 33 is internally provided with two branch bead receiving positions 331 for receiving the branch bead 323. The corresponding position of each branch bead receiving position 331 is provided with a branch bead sensor 324. The branch bead receiving unit 33 is internally provided with a branch bead cleaning unit. The waste liquid of the branch bead 323 after being cleaned by the branch bead cleaning unit is discharged through the branch bead waste liquid pipeline 332. The spray room wall plate 6 is arranged between the branch bead shooting unit 32 and the branch bead receiving unit 33. One side of the spray room wall plate 6 is a spray room, and the branch bead receiving unit 33 is located in the spray room. The branch bead receiving unit 33 is further provided with a plurality of pneumatic valve control switches 326 for controlling the branch bead 323. The branch bead receiving unit 33 is internally provided with a plurality of paint spraying pipelines, and each paint spraying pipeline is provided with a spraying valve 333.

[0053] With reference to Figure 5 The cleaning unit 4 is communicated with the branch bead receiving unit 33. The cleaning unit 4 is communicated with the third solvent input port, the second air input port 42 and the first high-pressure air input port 43. The one-way valve 44 is arranged between the third solvent input port, the second air input port 42 and the first high-pressure air input port 43 and the cleaning unit 4. The third solvent input port, the second air input port 42 and the first high-pressure air input port 43 are used for solvent input, air input and high-pressure air input in the whole system, and provide cleaning materials for cleaning the main pipeline 21, the branch pipeline 31, the main bead 221 and the branch bead 323 in the whole system, so as to facilitate cleaning. The one-way valve 44 is used for allowing the solvent, the air and the high-pressure air to only enter but not exit, and also satisfies the condition that the solvent, the air and the high-pressure air do not interfere with each other.

[0054] The implementation principle of the embodiment of the application is as follows: paint in the paint supply tank 11 is pumped into the filter unit by the paint supply pump 12, and then into the main pipe bead emission unit 22, and then into the main pipe line 1211, and finally into the main pipe bead receiving unit 23 at the end of the pipe line; after the main pipe line is filled with paint, the paint is delivered to the branch pipe bead emission unit 32 by the system control main pipe matrix distribution unit 5 in the middle of the main pipe line, and then into the branch pipe line 31, and then to the branch pipe bead receiving unit 33; when the main pipe line 1211, the main pipe line 2212 and the main pipe line 3213 are all filled with paint of different colors, the branch pipe A 321 and the branch pipe B 322 are filled with paint in the main pipe line 1211 and the main pipe line 2212; when the paint spraying of the branch pipe A 321 is completed, the branch pipe A 321 can be quickly cleaned by the cleaning unit 4; after the branch pipe A 321 is cleaned, the paint in the main pipe line 3213 is filled into the branch pipe A 321, and the paint spraying of the branch pipe B 322 is waited to be completed, and the paint spraying of the branch pipe A 321 can be quickly switched; when the branch pipe A 321 is sprayed, the main pipe line 2212 and the branch pipe B 322 which are sprayed are cleaned, and new color paint is replaced, so that different color paints can be sprayed in a cycle.

[0055] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A matrix bead-walking quick color change system for supplying paint, characterized in that, The application relates to a paint supply device, which comprises a paint supply unit (1), a main pipe bead unit (2), a branch pipe bead unit (3) and a cleaning unit (4). The main pipe bead unit (2) and the branch pipe bead unit (3) are connected through a paint branch pipe, the main pipe line (21) comprises a main pipe line 1 (211), a main pipe line 2 (212) and a main pipe line 3 (213), and the branch pipe line (31) comprises a first branch pipe (311) and a second branch pipe (312).

2. A matrix bead-walking quick color changing system for supplying paint according to claim 1, characterized in that: Two main pipe beads (221) are arranged in the main pipe bead emitting unit (22), main pipe bead sensors (222) are arranged at positions corresponding to the main pipe beads (221), a main pipe bead cleaning unit is arranged in the main pipe bead emitting unit (22), and solvent exhausted after the main pipe beads (221) are cleaned by the main pipe bead cleaning unit is discharged through a first main pipe bead waste liquid pipeline (223); two main pipe bead (221) receiving positions for receiving the main pipe beads (221) are arranged in the main pipe bead receiving unit (23), main pipe bead sensors (222) are arranged at positions corresponding to the main pipe bead (221) receiving positions, a main pipe bead cleaning unit is also arranged in the main pipe bead receiving unit (23), and solvent exhausted after the main pipe beads (221) are cleaned in the main pipe bead receiving unit (23) is discharged through a second main pipe bead waste liquid pipeline (232); one main pipe bead emitting unit (22) corresponds to one main pipe line (21) and one main pipe bead receiving unit (23), the main pipe bead emitting unit (22), the main pipe line (21) and the main pipe bead receiving unit (23) form a group, and three groups are arranged according to the number of the main pipe lines (21).

3. A matrix bead-walking quick color changing system for supplying paint according to claim 2, characterized in that: The first branch pipe (311) and the second branch pipe (312) are arranged in parallel, and both the first branch pipe (311) and the second branch pipe (312) communicate with a plurality of main pipe lines (21), the plurality of main pipe lines (21) are arranged in parallel in the matrix distribution unit (5), and the communication positions of the first branch pipe (311), the second branch pipe (312) and the main pipe lines (21) are located in the matrix distribution unit (5); the matrix distribution unit (5) is communicated with a first air input pipe and a first solvent input pipe, the first air input pipe communicates with a first air input port (51), and the first solvent input pipe communicates with a first solvent input port (52).

4. A matrix bead-walking quick color changing system for supplying paint according to claim 1, characterized in that: The first branch pipe (311) and the second branch pipe (312) are arranged in parallel, and both the first branch pipe (311) and the second branch pipe (312) communicate with a plurality of main pipe lines (21), the plurality of main pipe lines (21) are arranged in parallel in the matrix distribution unit (5), and the communication positions of the first branch pipe (311), the second branch pipe (312) and the main pipe lines (21) are located in the matrix distribution unit (5); the matrix distribution unit (5) is communicated with a first air input pipe and a first solvent input pipe, the first air input pipe communicates with a first air input port (51), and the first solvent input pipe communicates with a first solvent input port (52).

5. A matrix bead-walking quick color changing system for supplying paint according to claim 4, characterized in that: The first branch pipe (311) and the second branch pipe (312) are arranged in parallel, and both the first branch pipe (311) and the second branch pipe (312) communicate with a plurality of main pipe lines (21), the plurality of main pipe lines (21) are arranged in parallel in the matrix distribution unit (5), and the communication positions of the first branch pipe (311), the second branch pipe (312) and the main pipe lines (21) are located in the matrix distribution unit (5); the matrix distribution unit (5) is communicated with a first air input pipe and a first solvent input pipe, the first air input pipe communicates with a first air input port (51), and the first solvent input pipe communicates with a first solvent input port (52).

6. A matrix bead-walking quick color changing system for supplying paint according to claim 5, characterized in that: The first branch pipe (311) and the second branch pipe (312) are arranged in parallel, and both the first branch pipe (311) and the second branch pipe (312) communicate with a plurality of main pipe lines (21), the plurality of main pipe lines (21) are arranged in parallel in the matrix distribution unit (5), and the communication positions of the first branch pipe (311), the second branch pipe (312) and the main pipe lines (21) are located in the matrix distribution unit (5); the matrix distribution unit (5) is communicated with a first air input pipe and a first solvent input pipe, the first air input pipe communicates with a first air input port (51), and the first solvent input pipe communicates with a first solvent input port (52).

7. A matrix bead-walking quick color changing system for supplying paint according to claim 1, characterized in that: The cleaning unit (4) is communicated with the branch bead receiving unit (33), and the cleaning unit (4) is communicated with a third solvent input port (41), a second air input port (42) and a first high-pressure air input port (43).

8. A matrix bead-walking quick color changing system for supplying paint according to claim 7, characterized in that: A one-way valve (44) is arranged between the third solvent input port (41), the second air input port (42), the first high-pressure air input port (43) and the cleaning unit (4).

9. A matrix bead-walking quick color changing system for supplying paint according to claim 1, characterized in that: A pneumatic stirrer (14) and a liquid level meter (15) are arranged on the feed tank (11), and a pump cleaning unit (16) is arranged between the feed tank (11) and the feed pump (12).

10. A matrix bead-walking quick color changing system for supplying paint according to claim 9, characterized in that: A filter unit (18) and a flow meter (19) are arranged between the main tube ball-rolling launching unit (22) and the feed pump (12) in the flow direction of the paint.

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