A paint supply system

Abstract

This invention discloses a drip paint supply system, including a paint storage tank and a paint supply mechanism. The paint storage tank contains an insulated inner cylinder and an insulated coil. The insulated coil is wound around the insulated inner cylinder, which has a paint inlet pipe and a paint outlet pipe. The insulated coil has a water inlet pipe and a water outlet pipe at both ends. The paint supply mechanism includes a first connector, a second connector, and a third connector. The first connector converts the independent transport of raw paint and water bath water into a double-layer transport. The third connector converts the double-layer transport of raw paint and water bath water back into independent transport and then back into double-layer transport. The second connector converts the double-layer transport of raw paint and water bath water back into independent transport. This drip paint supply system allows the raw paint to maintain the required temperature for drip paint processing even outside the paint storage tank, ensuring the drip paint processing effect on the product being processed.

Description

Technical Field

[0001] This invention belongs to the field of processing technology, and specifically relates to a dripping paint supply system. Background Technology

[0002] In the motor manufacturing process, to ensure coil fixation and increase the insulation strength between enameled wires, the neck coil of the motor rotor needs to be coated with insulating adhesive. Currently, the insulation treatment of motor rotors is mostly done using a paint dripping machine. Maintaining the temperature of the raw paint during the dripping process is crucial for optimal dripping results. Currently, the raw paint is stored in a paint tank and transported to the dripping station of the product being processed via pipelines. However, the raw paint in the pipelines or outside the paint tank often cannot maintain the required temperature and is not easily circulated, leading to solidification inside the pipelines, which affects the efficiency and effectiveness of the dripping process. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a drip-based paint supply system.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A paint dripping system includes a paint storage tank and a paint supply mechanism. The paint storage tank is equipped with an insulated inner cylinder and an insulated coil. The insulated inner cylinder is used to store raw paint. The insulated coil is coiled around the insulated inner cylinder. Water bath water is circulated through the insulated coil to maintain the temperature of the raw paint. The insulated inner cylinder is equipped with a paint inlet pipe and a paint outlet pipe. The ends of the paint inlet pipe and the paint outlet pipe are both connected to the outside of the paint storage tank. The two ends of the insulated coil are equipped with a water inlet pipe and a water outlet pipe. The ends of the water inlet pipe and the water outlet pipe are both connected to the outside of the paint storage tank.

[0006] The paint supply mechanism includes a first connector, a second connector, and a third connector. The first connector is provided with a first water pipe and a first paint pipe. The first connector is provided with a first connecting hole, which is connected to the first water pipe. The first connector is provided with a second connecting hole, which is connected to the first paint pipe. The first connecting hole and the second connecting hole are matched. The second connector is provided with a second water pipe and a second paint pipe. The second connector is provided with a third connecting hole, which is connected to the second water pipe. The second connector is provided with a fourth connecting hole, which is connected to the second paint pipe. The third connecting hole and the fourth connecting hole are matched. The third connector is provided with a third water pipe and a third paint pipe. The third connector is provided with a fifth connecting hole, which is connected to the third water pipe. The third connector is provided with a sixth connecting hole, which is connected to the third paint pipe. The fifth connecting hole and the sixth connecting hole are matched. The third connector is provided with a seventh connecting hole, which is connected to the third water pipe. The third connector is provided with an eighth connecting hole, which is connected to the third paint pipe. The seventh connecting hole and the eighth connecting hole are matched.

[0007] The paint supply mechanism includes a first outer tube and a second outer tube. One end of the first outer tube is connected to the first connecting hole, and the other end of the first outer tube is connected to the fifth connecting hole. A first inner tube is provided inside the first outer tube. One end of the first inner tube is connected to the second connecting hole, and the other end of the first inner tube is connected to the sixth connecting hole. One end of the second outer tube is connected to the third connecting hole, and the other end of the second outer tube is connected to the seventh connecting hole. A second inner tube is provided inside the second outer tube. One end of the second inner tube is connected to the fourth connecting hole, and the other end of the second inner tube is connected to the eighth connecting hole.

[0008] The first water pipe is connected to the outlet water pipe, the first paint pipe is connected to the outlet paint pipe, the second water pipe is connected to the inlet water pipe, the second paint pipe is connected to the inlet paint pipe, the third connector is provided with a dripping paint pipe, the dripping paint pipe is connected to the third paint pipe, and the dripping paint pipe is provided with a dripping paint valve.

[0009] Furthermore, the axis of the second connecting hole coincides with the axis of the first connecting hole, the diameter of the first connecting hole is larger than the diameter of the second connecting hole, the second connecting hole connects the first water pipe and the first paint pipe, the first inner pipe is sealed to the second connecting hole, and the first outer pipe is sealed to the first connecting hole.

[0010] Furthermore, the axis of the fourth connecting hole coincides with the axis of the third connecting hole, the diameter of the third connecting hole is larger than the diameter of the fourth connecting hole, the fourth connecting hole connects the second water pipe and the second paint pipe, the second inner pipe is sealed to the fourth connecting hole, and the second outer pipe is sealed to the third connecting hole.

[0011] Furthermore, the axis of the fifth connecting hole coincides with the axis of the sixth connecting hole, the diameter of the fifth connecting hole is larger than the diameter of the sixth connecting hole, the sixth connecting hole connects the third water pipe and the third paint pipe, the first inner pipe is sealed to the sixth connecting hole, and the first outer pipe is sealed to the fifth connecting hole.

[0012] The axis of the seventh connecting hole coincides with the axis of the eighth connecting hole. The diameter of the seventh connecting hole is larger than that of the eighth connecting hole. The eighth connecting hole connects the third water pipe and the third paint pipe. The second inner pipe is sealed to the eighth connecting hole, and the second outer pipe is sealed to the seventh connecting hole.

[0013] Furthermore, the third connector includes a first plug and a second plug, the first plug being sealed to the third water pipe and the second plug being sealed to the third paint pipe.

[0014] Furthermore, the first connector is provided with a plurality of first connecting holes and a plurality of second connecting holes, the first connecting holes and the second connecting holes corresponding one-to-one, and the number of third connectors is the same as the number of first connecting holes, the third connectors corresponding one-to-one with the first connecting holes.

[0015] Furthermore, the number of the first connector, the second connector, and the third connector are the same, and the first connector and the second connector each correspond one-to-one with the third connector.

[0016] The paint dripping system disclosed in this invention has the following advantages compared with the prior art:

[0017] 1. It can ensure that after the raw paint leaves the paint storage tank, the raw paint and water bath water are transported separately through the first connector through the first inner pipe and the first outer pipe in a double-layer transport. Then, through the connection of the third connector, the double-layer transport of the first inner pipe and the first outer pipe can be converted into independent transport for dripping paint. The independent transport can be converted back into double-layer transport, and the second connector can be connected to convert the double-layer transport of the first inner pipe and the first outer pipe back into independent transport again, so that it can re-enter the paint storage tank. This allows the raw paint to maintain the temperature required for dripping paint processing even outside the paint storage tank, which can ensure the dripping paint processing effect of the product to be processed.

[0018] 2. It can ensure that the raw paint can be circulated after leaving the paint storage tank, which can prevent the raw paint from solidifying inside the first, second and third connectors, affecting the efficiency and effect of the paint dripping tube, and causing changes in the concentration or purity of the raw paint dripped through the paint dripping tube, thus affecting the processing quality of the paint dripping tube. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the third connector in the first embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the first connector of the first embodiment provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the second embodiment provided by the present invention.

[0023] The reference numerals in the attached drawings include: 100, first connector; 110, first paint pipe; 111, second connecting hole; 120, first water pipe; 121, first connecting hole; 200, second connector; 210, second air pipe; 211, fourth connecting hole; 220, second water pipe; 221, third connecting hole; 300, third connector; 310, third paint pipe; 311, eighth connecting hole; 312, sixth connecting hole; 313, ninth connecting hole; 320, third water pipe; 321, seventh connecting hole; 322, fifth connecting hole; 330, paint drip tube; 411, first outer pipe; 412, first inner pipe; 421, second outer pipe; 422, second inner pipe. Detailed Implementation

[0024] This invention discloses a dripping paint supply system. The specific implementation of this invention will be further described below with reference to preferred embodiments.

[0025] See attached diagram. Figure 1-4 , Figure 1 This is a schematic diagram of the structure of the first embodiment provided by the present invention. Figure 2 This is a schematic diagram of the structure of the third connector 300 according to the first embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the first connector 100 according to the first embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the second embodiment provided by the present invention.

[0026] First embodiment.

[0027] This embodiment provides a dripping paint supply system, including a paint storage tank and a paint supply mechanism. The paint storage tank is equipped with an insulated inner cylinder and an insulated coil. The insulated inner cylinder is used to store raw paint. The insulated coil is coiled around the insulated inner cylinder. Water bath water is circulated in the insulated coil to maintain the temperature of the raw paint. The insulated inner cylinder is equipped with a paint inlet pipe and a paint outlet pipe. The ends of the paint inlet pipe and the paint outlet pipe are connected to the outside of the paint storage tank. The two ends of the insulated coil are equipped with a water inlet pipe and a water outlet pipe. The ends of the water inlet pipe and the water outlet pipe are connected to the outside of the paint storage tank.

[0028] The paint supply mechanism includes a first connector 100, a second connector 200, and a third connector 300. The first connector 100 is provided with a first water pipe 120 and a first paint pipe 110. The first connector 100 has a first connecting hole 121 connected to the first water pipe 120. The first connector 100 also has a second connecting hole 111 connected to the first paint pipe 110. The first connecting hole 121 and the second connecting hole 111 are matched. The second connector 200 is provided with a second water pipe 220 and a second paint pipe. The second connector 200 has a third connecting hole 221 connected to the second water pipe 220. The second connector 200 also has a fourth connecting hole 211 connected to the first water pipe 220. Two paint pipes, the third connecting hole 221 matches the fourth connecting hole 211, the third connector 300 is provided with a third water pipe 320 and a third paint pipe 310, the third connector 300 is provided with a fifth connecting hole 322, the fifth connecting hole 322 is connected to the third water pipe 320, the third connector 300 is provided with a sixth connecting hole 312, the sixth connecting hole 312 is connected to the third paint pipe 310, the fifth connecting hole 322 matches the sixth connecting hole 312, the third connector 300 is provided with a seventh connecting hole 321, the seventh connecting hole 321 is connected to the third water pipe 320, the third connector 300 is provided with an eighth connecting hole 311, the eighth connecting hole 311 is connected to the third paint pipe 310, the seventh connecting hole 321 matches the eighth connecting hole 311;

[0029] The paint supply mechanism includes a first outer tube 411 and a second outer tube 421. One end of the first outer tube 411 is connected to the first connecting hole 121, and the other end of the first outer tube 411 is connected to the fifth connecting hole 322. A first inner tube 412 is provided inside the first outer tube 411. One end of the first inner tube 412 is connected to the second connecting hole 111, and the other end of the first inner tube 412 is connected to the sixth connecting hole 312. One end of the second outer tube 421 is connected to the third connecting hole 221, and the other end of the second outer tube 421 is connected to the seventh connecting hole 321. A second inner tube 422 is provided inside the second outer tube 421. One end of the second inner tube 422 is connected to the fourth connecting hole 211, and the other end of the second inner tube 422 is connected to the eighth connecting hole 311.

[0030] The first water pipe 120 is connected to the water outlet pipe, the first paint pipe 110 is connected to the paint outlet pipe, the second water pipe 220 is connected to the water inlet pipe, the second paint pipe is connected to the paint inlet pipe, the third connector 300 is provided with a paint dripping pipe 330, the paint dripping pipe 330 is connected to the third paint pipe 310, and the paint dripping pipe 330 is provided with a paint dripping valve.

[0031] Furthermore, the axis of the second connecting hole 111 coincides with the axis of the first connecting hole 121, the diameter of the first connecting hole 121 is larger than the diameter of the second connecting hole 111, the second connecting hole 111 connects the first water pipe 120 and the first paint pipe 110, the first inner pipe 412 is sealed to the second connecting hole 111, and the first outer pipe 411 is sealed to the first connecting hole 121.

[0032] Furthermore, the axis of the fourth connecting hole 211 coincides with the axis of the third connecting hole 221, the diameter of the third connecting hole 221 is larger than the diameter of the fourth connecting hole 211, the fourth connecting hole 211 connects the second water pipe 220 and the second paint pipe, the second inner pipe 422 is sealed to the fourth connecting hole 211, and the second outer pipe 421 is sealed to the third connecting hole 221.

[0033] Furthermore, the axis of the fifth connecting hole 322 coincides with the axis of the sixth connecting hole 312, the diameter of the fifth connecting hole 322 is larger than the diameter of the sixth connecting hole 312, the sixth connecting hole 312 connects the third water pipe 320 and the third paint pipe 310, the first inner pipe 412 is sealed to the sixth connecting hole 312, and the first outer pipe 411 is sealed to the fifth connecting hole 322;

[0034] The axis of the seventh connecting hole 321 coincides with the axis of the eighth connecting hole 311. The diameter of the seventh connecting hole 321 is larger than that of the eighth connecting hole 311. The eighth connecting hole 311 connects the third water pipe 320 and the third paint pipe 310. The second inner pipe 422 is sealed to the eighth connecting hole 311, and the second outer pipe 421 is sealed to the seventh connecting hole 321. The third connector 300 is provided with a ninth connecting hole 313, which corresponds to the area between the sixth connecting hole 312 and the eighth connecting hole 311. The ninth connecting hole 313 is connected to the third paint pipe 310, and the paint dripping pipe 330 is sealed to the third air pipe through the ninth connecting hole 313.

[0035] Furthermore, the third connector 300 includes a first plug and a second plug, the first plug being sealed to the third water pipe 320, and the second plug being sealed to the third paint pipe 310.

[0036] Furthermore, the first connector 100 is provided with a plurality of first connecting holes 121 and a plurality of second connecting holes 111, the first connecting holes 121 and the second connecting holes 111 correspond one-to-one, the number of third connectors 300 is the same as the number of first connecting holes 121, and the third connectors 300 correspond one-to-one with the first connecting holes 121.

[0037] Working principle:

[0038] The method of using the dripping paint supply system in this embodiment is as follows:

[0039] First, securely connect the first connector 100, the second connector 200, and the third connector 300, as well as the first inner tube 412, the second inner tube 422, the first outer tube 411, and the second outer tube 421 (using existing connection methods such as threaded connection or snap-fit ​​connection, ensuring the sealing of the connection). Seal the first plug to the third water pipe 320 and the second plug to the third paint pipe 310. Simultaneously, connect the first paint pipe 110 to the paint outlet pipe, the second paint pipe to the air inlet pipe, the first water pipe 120 to the water outlet pipe, and the first water pipe 120 to the water inlet pipe.

[0040] Secondly, a circulating power device (such as a circulating pump) is used to provide power for the circulation of the raw paint and the water bath, allowing the raw paint to circulate within the insulated inner cylinder, the first paint pipe 110, the second paint pipe, the third paint pipe 310, the first inner pipe 412, and the second inner pipe 422. Simultaneously, the water bath circulates within the insulated coil, the first water pipe 120, the second water pipe 220, the third water pipe 320, the first outer pipe 411, and the second outer pipe 421. The first inner pipe 412 and the second inner pipe 422 ensure that the raw paint and the water bath are separated, preventing any impact on the purity or concentration of the raw paint. At the same time, the water bath in the first outer pipe 411 and the second outer pipe 421 ensures that the raw paint in the first inner pipe 412 and the second inner pipe 422 can maintain the required operating temperature.

[0041] Then, open the drip valve (any commercially available one will do) to drip the raw paint onto the product to be processed. After the dripping process is complete, close the drip valve. The water bath in the first outer pipe 411 and the second outer pipe 421 maintains the temperature of the raw paint in the first inner pipe 412 and the second inner pipe 422, which ensures the effectiveness of the dripping process.

[0042] The paint dripping system provided in this embodiment has the following advantages: 1. It can ensure that after the raw paint leaves the paint storage tank, the independently transported raw paint and water bath water are transported in a double layer through the first inner pipe 412 and the first outer pipe 411 via the conversion of the first connector 100. Then, through the connection of the third connector 300, the double layer transport of the first inner pipe 412 and the first outer pipe 411 can be converted into independent transport for paint dripping. The independent transport can then be converted back into double layer transport, connected to the second connector 200, and the double layer transport of the first inner pipe 412 and the first outer pipe 411 can be converted back into independent transport through the second connector 200. 1. The layered transport is converted to independent transport, and the raw paint re-enters the paint storage tank, so that the raw paint can maintain the temperature required for drip painting processing even outside the paint storage tank, which can ensure the drip painting effect of the product to be processed; 2. It can ensure that the raw paint can be circulated after leaving the paint storage tank, which can prevent the raw paint from solidifying inside the first connector 100, the second connector 200 and the third connector 300, affecting the efficiency and effect of dripping paint from the dripping tube 330, and causing changes in the concentration or purity of the raw paint dripped through the dripping tube 330, thus affecting the processing quality of dripping paint from the dripping tube 330.

[0043] Second embodiment.

[0044] This embodiment provides a dripping paint supply system, including a paint storage tank and a paint supply mechanism. The paint storage tank is equipped with an insulated inner cylinder and an insulated coil. The insulated inner cylinder is used to store raw paint. The insulated coil is coiled around the insulated inner cylinder. Water bath water is circulated in the insulated coil to maintain the temperature of the raw paint. The insulated inner cylinder is equipped with a paint inlet pipe and a paint outlet pipe. The ends of the paint inlet pipe and the paint outlet pipe are connected to the outside of the paint storage tank. The two ends of the insulated coil are equipped with a water inlet pipe and a water outlet pipe. The ends of the water inlet pipe and the water outlet pipe are connected to the outside of the paint storage tank.

[0045] The paint supply mechanism includes a first connector 100, a second connector 200, and a third connector 300. The first connector 100 is provided with a first water pipe 120 and a first paint pipe 110. The first connector 100 has a first connecting hole 121 connected to the first water pipe 120. The first connector 100 also has a second connecting hole 111 connected to the first paint pipe 110. The first connecting hole 121 and the second connecting hole 111 are matched. The second connector 200 is provided with a second water pipe 220 and a second paint pipe. The second connector 200 has a third connecting hole 221 connected to the second water pipe 220. The second connector 200 also has a fourth connecting hole 211 connected to the first water pipe 220. Two paint pipes, the third connecting hole 221 matches the fourth connecting hole 211, the third connector 300 is provided with a third water pipe 320 and a third paint pipe 310, the third connector 300 is provided with a fifth connecting hole 322, the fifth connecting hole 322 is connected to the third water pipe 320, the third connector 300 is provided with a sixth connecting hole 312, the sixth connecting hole 312 is connected to the third paint pipe 310, the fifth connecting hole 322 matches the sixth connecting hole 312, the third connector 300 is provided with a seventh connecting hole 321, the seventh connecting hole 321 is connected to the third water pipe 320, the third connector 300 is provided with an eighth connecting hole 311, the eighth connecting hole 311 is connected to the third paint pipe 310, the seventh connecting hole 321 matches the eighth connecting hole 311;

[0046] The paint supply mechanism includes a first outer tube 411 and a second outer tube 421. One end of the first outer tube 411 is connected to the first connecting hole 121, and the other end of the first outer tube 411 is connected to the fifth connecting hole 322. A first inner tube 412 is provided inside the first outer tube 411. One end of the first inner tube 412 is connected to the second connecting hole 111, and the other end of the first inner tube 412 is connected to the sixth connecting hole 312. One end of the second outer tube 421 is connected to the third connecting hole 221, and the other end of the second outer tube 421 is connected to the seventh connecting hole 321. A second inner tube 422 is provided inside the second outer tube 421. One end of the second inner tube 422 is connected to the fourth connecting hole 211, and the other end of the second inner tube 422 is connected to the eighth connecting hole 311.

[0047] The first water pipe 120 is connected to the water outlet pipe, the first paint pipe 110 is connected to the paint outlet pipe, the second water pipe 220 is connected to the water inlet pipe, the second paint pipe is connected to the paint inlet pipe, the third connector 300 is provided with a paint dripping pipe 330, the paint dripping pipe 330 is connected to the third paint pipe 310, and the paint dripping pipe 330 is provided with a paint dripping valve.

[0048] Furthermore, the axis of the second connecting hole 111 coincides with the axis of the first connecting hole 121, the diameter of the first connecting hole 121 is larger than the diameter of the second connecting hole 111, the second connecting hole 111 connects the first water pipe 120 and the first paint pipe 110, the first inner pipe 412 is sealed to the second connecting hole 111, and the first outer pipe 411 is sealed to the first connecting hole 121.

[0049] Furthermore, the axis of the fourth connecting hole 211 coincides with the axis of the third connecting hole 221, the diameter of the third connecting hole 221 is larger than the diameter of the fourth connecting hole 211, the fourth connecting hole 211 connects the second water pipe 220 and the second paint pipe, the second inner pipe 422 is sealed to the fourth connecting hole 211, and the second outer pipe 421 is sealed to the third connecting hole 221.

[0050] Furthermore, the axis of the fifth connecting hole 322 coincides with the axis of the sixth connecting hole 312, the diameter of the fifth connecting hole 322 is larger than the diameter of the sixth connecting hole 312, the sixth connecting hole 312 connects the third water pipe 320 and the third paint pipe 310, the first inner pipe 412 is sealed to the sixth connecting hole 312, and the first outer pipe 411 is sealed to the fifth connecting hole 322;

[0051] The axis of the seventh connecting hole 321 coincides with the axis of the eighth connecting hole 311. The diameter of the seventh connecting hole 321 is larger than that of the eighth connecting hole 311. The eighth connecting hole 311 connects the third water pipe 320 and the third paint pipe 310. The second inner pipe 422 is sealed to the eighth connecting hole 311, and the second outer pipe 421 is sealed to the seventh connecting hole 321. The third connector 300 is provided with a ninth connecting hole 313, which corresponds to the area between the sixth connecting hole 312 and the eighth connecting hole 311. The ninth connecting hole 313 is connected to the third paint pipe 310, and the paint dripping pipe 330 is sealed to the third air pipe through the ninth connecting hole 313.

[0052] Furthermore, the third connector 300 includes a first plug and a second plug, the first plug being sealed to the third water pipe 320, and the second plug being sealed to the third paint pipe 310.

[0053] Furthermore, the number of the first connector 100, the second connector 200, and the third connector 300 are the same, and the first connector 100 and the second connector 200 correspond one-to-one with the third connector 300.

[0054] Working principle:

[0055] Unlike the first embodiment described above, this embodiment uses a large number of first connectors 100 and second connectors 200. The connection method also adopts conventional technical means (such as adding auxiliary connections such as diversion pipes, ensuring that the material of the diversion pipes is suitable for transporting raw material paint and water bath water). The technical effect achieved by this embodiment is the same as that of the first embodiment described above.

[0056] It is worth mentioning that the technical features involved in this patent application, such as the sealing connection of the inner and outer pipes, the circulating power device of the water bath, and the selection of the dripping valve and the paint storage tank, should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this patent. This patent will not be further elaborated in detail.

[0057] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A drip paint supply system, characterized in that, The system includes a paint storage tank and a paint supply mechanism. The paint storage tank is equipped with an insulated inner cylinder and an insulated coil. The insulated inner cylinder is used to store raw paint. The insulated coil is coiled around the insulated inner cylinder. Water bath water is circulated through the insulated coil to maintain the temperature of the raw paint. The insulated inner cylinder is equipped with a paint inlet pipe and a paint outlet pipe. The ends of the paint inlet pipe and the paint outlet pipe are both connected to the outside of the paint storage tank. The two ends of the insulated coil are equipped with a water inlet pipe and a water outlet pipe. The ends of the water inlet pipe and the water outlet pipe are both connected to the outside of the paint storage tank. The paint supply mechanism includes a first connector (100), a second connector (200), and a third connector (300). The first connector (100) is provided with a first water pipe (120) and a first paint pipe (110). The first connector (100) is provided with a first connecting hole (121) that connects to the first water pipe (120). The first connector (100) is provided with a second connecting hole (111) that connects to the first paint pipe (110). The first connecting hole (121) and the second connecting hole (111) are matched. The second connector (200) is provided with a second water pipe (220) and a second paint pipe. The second connector (200) is provided with a third connecting hole (221) that connects to the second water pipe (220). The second connector (200) is provided with a fourth connecting hole (211) that connects to the first water pipe (120). Two paint pipes, the third connecting hole (221) matches the fourth connecting hole (211), the third connector (300) is provided with a third water pipe (320) and a third paint pipe (310), the third connector (300) is provided with a fifth connecting hole (322), the fifth connecting hole (322) is connected to the third water pipe (320), the third connector (300) is provided with a sixth connecting hole (312), the sixth connecting hole (312) is connected to the third paint pipe ( 310), the fifth connecting hole (322) matches the sixth connecting hole (312), the third connector (300) is provided with a seventh connecting hole (321), the seventh connecting hole (321) is connected to the third water pipe (320), the third connector (300) is provided with an eighth connecting hole (311), the eighth connecting hole (311) is connected to the third paint pipe (310), the seventh connecting hole (321) matches the eighth connecting hole (311); The paint supply mechanism includes a first outer tube (411) and a second outer tube (421). One end of the first outer tube (411) is connected to the first connecting hole (121), and the other end of the first outer tube (411) is connected to the fifth connecting hole (322). The first outer tube (411) contains a first inner tube (412). One end of the first inner tube (412) is connected to the second connecting hole (111), and the other end of the first inner tube (412) is connected to the sixth connecting hole (312). One end of the second outer tube (421) is connected to the third connecting hole (221), and the other end of the second outer tube (421) is connected to the seventh connecting hole (321). The second outer tube (421) contains a second inner tube (422). One end of the second inner tube (422) is connected to the fourth connecting hole (211), and the other end of the second inner tube (422) is connected to the eighth connecting hole (311). The first water pipe (120) is connected to the water outlet pipe, the first paint pipe (110) is connected to the paint outlet pipe, the second water pipe (220) is connected to the water inlet pipe, the second paint pipe is connected to the paint inlet pipe, the third connector (300) is provided with a paint dripping pipe (330), the paint dripping pipe (330) is connected to the third paint pipe (310), and the paint dripping pipe (330) is provided with a paint dripping valve.

2. The paint dripping system according to claim 1, characterized in that, The axis of the second connecting hole (111) coincides with the axis of the first connecting hole (121). The diameter of the first connecting hole (121) is larger than the diameter of the second connecting hole (111). The second connecting hole (111) connects the first water pipe (120) and the first paint pipe (110). The first inner pipe (412) is sealed to the second connecting hole (111), and the first outer pipe (411) is sealed to the first connecting hole (121).

3. The paint dripping system according to claim 1, characterized in that, The axis of the fourth connecting hole (211) coincides with the axis of the third connecting hole (221). The diameter of the third connecting hole (221) is larger than that of the fourth connecting hole (211). The fourth connecting hole (211) connects the second water pipe (220) and the second paint pipe. The second inner pipe (422) is sealed to the fourth connecting hole (211), and the second outer pipe (421) is sealed to the third connecting hole (221).

4. The paint dripping system according to claim 1, characterized in that, The axis of the fifth connecting hole (322) coincides with the axis of the sixth connecting hole (312). The diameter of the fifth connecting hole (322) is larger than that of the sixth connecting hole (312). The sixth connecting hole (312) connects the third water pipe (320) and the third paint pipe (310). The first inner pipe (412) is sealed to the sixth connecting hole (312). The first outer pipe (411) is sealed to the fifth connecting hole (322). The axis of the seventh connecting hole (321) coincides with the axis of the eighth connecting hole (311). The diameter of the seventh connecting hole (321) is larger than that of the eighth connecting hole (311). The eighth connecting hole (311) connects the third water pipe (320) and the third paint pipe (310). The second inner pipe (422) is sealed to the eighth connecting hole (311), and the second outer pipe (421) is sealed to the seventh connecting hole (321).

5. The paint dripping system according to claim 1, characterized in that, The third connector (300) includes a first plug and a second plug, the first plug being sealed to the third water pipe (320) and the second plug being sealed to the third paint pipe (310).

6. The paint dripping system according to claim 1, characterized in that, The first connector (100) is provided with a plurality of first connecting holes (121) and a plurality of second connecting holes (111), the first connecting holes (121) and the second connecting holes (111) correspond one-to-one. The number of third connectors (300) is the same as the number of first connecting holes (121), and the third connectors (300) correspond one-to-one with the first connecting holes (121).

7. The paint dripping system according to claim 1, characterized in that, The number of the first connector (100), the second connector (200), and the third connector (300) is the same, and the first connector (100) and the second connector (200) correspond one-to-one with the third connector (300).

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