An aqueous fluorocarbon colorant electrostatic spray system

Abstract

The application relates to a water-based fluorocarbon color paste electrostatic spraying system and relates to the technical field of paint spraying equipment, which comprises a machine body, a spray gun for spraying workpieces is arranged on the machine body, a feed loop for conveying color paste to the spray gun is arranged on the machine body, an electrostatic generator is connected to the feed loop, and an adjusting mechanism for adjusting the opening and closing of the spray gun is arranged on the machine body. The electrostatic generator supplies power to the feed loop, and electrostatics are mixed into the color paste, so that the color paste is negatively charged; the adjusting mechanism opens the spray gun, and then the color paste mixed with the negative charge is sprayed on the workpiece with positive charge, and a uniform coating is deposited, so that the operation is convenient, and the possibility that the color paste is difficult to be adsorbed on the workpiece and causes uneven distribution of the color paste on the surface of the workpiece is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of paint spraying equipment, in particular to a water-based fluorocarbon color paste electrostatic spraying system. BACKGROUND

[0002] Spraying is a painting method that disperses liquid color paste into uniform and fine mist droplets on the surface of a workpiece to be painted by means of pressure or centrifugal force through a spray gun or a disc atomizer. Spraying has high production efficiency, strong automation degree and wide application range. Spraying is mainly applied to the fields of hardware, plastic, furniture, military industry and ships and is the most common painting method at present.

[0003] In the spraying work, the workpiece is first hung on a rotating hanger, and the spray gun sprays color paste on the workpiece. During the spraying process, the workpiece slowly moves with the rotating hanger, and thus a large amount of workpieces can be continuously sprayed.

[0004] However, in actual production, the inventors find that the color paste sprayed by the spray gun is difficult to be adsorbed on the workpiece, and the color paste flows down along the sidewall of the workpiece under the action of gravity, thereby causing uneven distribution of the color paste on the surface of the workpiece. SUMMARY

[0005] In order to improve the problem that the color paste is difficult to be adsorbed on the workpiece and causes uneven distribution of the color paste on the surface of the workpiece, the application provides a water-based fluorocarbon color paste electrostatic spraying system.

[0006] The water-based fluorocarbon color paste electrostatic spraying system provided by the application adopts the following technical scheme:

[0007] The water-based fluorocarbon color paste electrostatic spraying system comprises a machine body, a spray gun for spraying a workpiece is arranged on the machine body, a feed loop for feeding color paste to the spray gun is arranged on the machine body, an electrostatic generator is connected to the feed loop, and an adjusting mechanism for adjusting the opening and closing of the spray gun is arranged on the machine body.

[0008] Through the above technical scheme, the electrostatic generator supplies power to the feed loop, and the electrostatic generator mixes into the color paste to make the color paste carry negative charges. The adjusting mechanism opens the spray gun, and thus the color paste mixed with negative charges is sprayed on the workpiece with positive charges to form a uniform coating layer. The operation is convenient, and the possibility of uneven distribution of the color paste on the surface of the workpiece due to the difficulty of the color paste in being adsorbed on the workpiece is reduced.

[0009] Preferably, the adjusting mechanism comprises an adjusting block, a first passage and a second passage are arranged in the adjusting block, one end of the first passage communicates with the second passage, the other end of the first passage communicates with the feed loop, one end of the second passage away from the first passage communicates with the spray gun, and an adjusting assembly for controlling the opening and closing of the second passage is arranged on the machine body.

[0010] By adopting the technical scheme, the adjusting assembly opens the second passage, the color paste enters the second passage through the first passage, and then is delivered to the spray gun, so that the operation is convenient; after the spraying work is completed, the adjusting assembly closes the second passage, so that the possibility of waste caused by continuous outflow of the color paste is reduced.

[0011] Preferably, the adjusting assembly comprises a first material blocking plate and a piston body, the first material blocking plate is matched with the second passage, the first material blocking plate is connected with the piston body through a connecting rod, the piston body is slidably connected with an adjusting block, and the adjusting block is provided with an adjusting piece for driving the piston body to slide towards the direction of the second passage.

[0012] By adopting the technical scheme, the adjusting piece drives the piston body to slide towards the direction of the second passage, so that the piston body pushes the first material blocking plate to close the second passage through the connecting rod, and the possibility of waste caused by continuous outflow of the color paste is further reduced.

[0013] Preferably, the adjusting block is provided with a sliding cavity, the sliding cavity is communicated with the second passage, the piston body is slidably connected with the sliding cavity, the adjusting piece comprises an air inlet pipe, the air inlet pipe is connected with one end of the sliding cavity away from the second passage, and the adjusting block is provided with a first tension spring for driving the piston body to slide away from the direction of the second passage.

[0014] By adopting the technical scheme, the air inlet pipe blows the sliding cavity, the air pressure in the sliding cavity increases, the piston body is then pushed to slide towards the direction of the second passage, the first material blocking plate closes the second passage, the operation is convenient, and the structure is simple. The tension of the first tension spring drives the piston body to slide away from the direction of the second passage, the second passage is then opened, and the smoothness of the color paste is improved.

[0015] Preferably, the adjusting block is provided with a third passage, the third passage is communicated with the first passage and the second passage, the machine body is provided with a material returning loop, one end of the material returning loop is communicated with one end of the third passage away from the first passage, the other end of the material returning loop is communicated with one end of the material feeding loop away from the first passage, and the adjusting block is provided with a material returning assembly for adjusting opening and closing of the third passage.

[0016] By adopting the technical scheme, when the material returning assembly closes the third passage, the color paste flows from the first passage into the second passage, and then sprays the workpiece; when the material returning assembly opens the third passage, the excess color paste flows into the material returning loop through the third passage, and then flows back to the material feeding loop, so that resources are saved, labor is saved, and the operation is convenient.

[0017] Preferably, the back material assembly comprises a second material blocking plate and a connecting rope, the second material blocking plate is in sliding connection with the adjusting block, one end of the connecting rope is fixedly connected with the second material blocking plate, the other end is fixedly connected with the first material blocking plate, a winding wheel for winding the connecting rope is rotationally connected on the adjusting block, and a second tension spring for driving the second material blocking plate to slide towards the third passage is arranged on the adjusting block.

[0018] By adopting the above technical scheme, when the first material blocking plate slides towards the direction away from the second passage, the second material blocking plate is driven to slide towards the direction away from the second tension spring through the connecting rope, and the third passage is closed. The winding wheel can reduce the abrasion of the connecting rope and prolong the service life of the connecting rope; the second tension spring drives the second material blocking plate to slide towards the direction of the second tension spring, and the flow of the color paste in the third passage can be adjusted by adjusting the position of the first material blocking plate, which is convenient to operate.

[0019] Preferably, a gun seat is in sliding connection with the machine body, the spray gun is fixedly connected with the gun seat, a rack is arranged on the machine body, a gear for meshing with the rack is rotationally connected on the gun seat, a worm wheel is coaxially fixedly connected on the gear, a worm for driving the worm wheel to rotate is rotationally connected on the gun seat, and a driving member for driving the worm to rotate is arranged on the gun seat.

[0020] By adopting the above technical scheme, the driving member drives the worm to rotate, the worm meshes with the worm wheel, the gear is driven to rotate, the gear meshes with the rack, the gear moves along the length direction of the rack, the gun seat is driven to move along the length direction of the rack by the gear, and the spray gun can be used to spray the workpiece in the vertical direction, thereby improving the spraying area.

[0021] Preferably, a sliding pipe is arranged on the machine body, a sliding cylinder is sleeved on the sliding pipe, the gun seat is fixedly connected with the sliding cylinder, the rack is fixedly connected with the sliding pipe, an air expansion shaft for fixing the sliding pipe and the sliding cylinder is arranged in the sliding pipe, the air inlet pipe is connected with the air expansion shaft, and a rotating member for driving the air expansion shaft to rotate is arranged on the machine body.

[0022] By adopting the above technical scheme, the air inlet pipe supplies air to the air expansion shaft, the air expansion shaft is expanded to fix the air expansion shaft, the sliding pipe and the sliding cylinder, the rotating member drives the air expansion shaft to rotate, and the gun seat is driven to rotate around the axis of the air expansion shaft, so that the spray gun can be used to spray the workpiece in rotation, thereby further improving the spraying area of the color paste.

[0023] Preferably, a filter plate is in sliding connection with the adjusting block, the filter plate is used to filter the color paste in the first passage, a brush is arranged on the adjusting block and abuts against the filter plate, and an adjusting member for driving the filter plate to slide towards the direction away from the first passage is arranged on the adjusting block.

[0024] By adopting the above technical scheme, the filter plate is driven by the adjusting handle to slide away from the first passage, the brush cleans the filter plate in sliding, and the filter residue remaining on the surface of the filter plate is scraped off, thereby improving the cleanliness of the first passage.

[0025] Preferably, the adjusting block is provided with an injection cylinder, the adjusting handle comprises an adjusting piston and a piston rod, the adjusting piston is in sliding connection with the injection cylinder, one end of the piston rod is fixedly connected with the filter plate, the other end of the piston rod is connected with the adjusting piston, one end of the injection cylinder away from the filter plate is connected with a gas guide pipe, a gas outlet hole is arranged on the side wall of the sliding cavity towards the first passage, and the other end of the gas guide pipe away from the injection cylinder is in communication with the gas outlet hole.

[0026] By adopting the above technical scheme, when the first material blocking plate closes the first passage, the gas in the gas inlet pipe enters the gas guide pipe through the gas outlet hole, and then enters the injection cylinder, the pressure in the injection cylinder increases, and the adjusting piston is driven to slide, the adjusting piston drives the filter plate to slide away from the first material blocking plate through the piston rod, and the operation is convenient.

[0027] To sum up, the present application has at least one of the following beneficial technical effects:

[0028] The electrostatic generator supplies power to the feed loop, the electrostatically mixed colorant carries a negative charge, the adjusting mechanism opens the spray gun, and the colorant mixed with the negative charge is sprayed on the workpiece with a positive charge to form a uniform coating, which is convenient to operate and reduces the possibility that the colorant is difficult to be adsorbed on the workpiece, thereby causing uneven distribution of the colorant on the surface of the workpiece.

[0029] When the material return assembly closes the third passage, the colorant flows from the first passage into the second passage, and then sprays the workpiece; when the material return assembly opens the third passage, the excess colorant flows into the material return loop through the third passage, and finally flows back into the feed loop, thereby saving resources, labor and being convenient to operate.

[0030] The adjusting handle drives the filter plate to slide away from the first passage, the brush cleans the filter plate in sliding, and the filter residue remaining on the surface of the filter plate is scraped off, thereby improving the cleanliness of the first passage. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structure schematic view for embodying the whole spraying system in the embodiment of the present application.

[0032] Figure 2 is a sectional view for embodying the adjusting mechanism in the embodiment of the present application.

[0033] Figure 3 is a sectional view for embodying the adjusting handle in the embodiment of the present application.

[0034] Figure 4 is a structural schematic diagram for embodying the rotating member in the embodiment of the present application.

[0035] Legend: 1, machine body; 11, support; 12, rotating member; 121, first motor; 122, base; 123, gas expansion shaft; 1231, key; 124, gas distribution pipe; 125, three-way valve; 126, sliding pipe; 1261, through hole; 127, sliding cylinder; 13, gun seat; 14, driving member; 141, second motor; 142, worm; 143, worm gear; 144, gear; 145, rack; 2, spray gun; 3, feed loop; 31, feed pipe; 32, cylinder; 33, insulating platform; 34, diaphragm pump; 35, gear pump; 4, return material loop; 41, return material pipe; 42, return material assembly; 421, second material blocking plate; 422, connecting rope; 423, winding wheel; 424, second tension spring; 5, adjusting mechanism; 51, adjusting block; 511, sliding cavity; 5111, air outlet hole; 5112, air guide pipe; 512, first passage; 513, second passage; 514, third passage; 515, filter plate; 516, control element; 5161, injection cylinder; 5162, control piston; 5163, piston rod; 517, brush; 52, adjusting assembly; 521, first material blocking plate; 522, piston body; 523, connecting rod; 524, adjusting member; 5241, air inlet pipe; 5242, air pump; 525, blocking rod; 526, first tension spring; 53, guide pipe; 6, electrostatic generator. DETAILED DESCRIPTION

[0036] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0037] The embodiment of the present application discloses a water-based fluorocarbon color paste electrostatic spraying system. Figure 1 A water-based fluorocarbon color paste electrostatic spraying system comprises a machine body 1, a feed loop 3 is installed on the machine body 1, a spray gun 2 is connected to the output end of the feed loop 3, the feed loop 3 is used for conveying color paste to the spray gun 2, and the spray gun 2 is arranged towards a workpiece direction. An electrostatic generator 6 is also installed on the machine body 1, and the electrostatic generator 6 is connected with the feed loop 3. When working, negative charges generated by the electrostatic generator 6 are mixed into the color paste, the spray gun 2 sprays towards the workpiece, the color paste with negative charges is adsorbed on the workpiece with positive charges, and thus the uniformity of the workpiece surface spraying is improved, and the operation is convenient.

[0038] Refer to Figure 1, the feeding loop 3 comprises a barrel 32 and a feeding pipe 31 connected with the barrel 32, an insulating table 33 is installed on the machine body 1, a diaphragm pump 34 is fixed on the insulating table 33, the end of the feeding pipe 31 away from the barrel 32 is communicated with the diaphragm pump 34, the output end of the electrostatic generator 6 is electrically connected with the diaphragm pump 34 for leading electrostatic into the diaphragm pump 34. The insulating table 33 is also fixed with a gear pump 35, and the end of the feeding pipe 31 passing through the diaphragm pump 34 is connected with the gear pump 35. The end of the feeding pipe 31 passing through the gear pump 35 is communicated with the spray gun 2. In order to save the color paste resources, the adjusting mechanism 5 is installed on the machine body 1, which is used to control the opening or closing of the spray gun 2, so as to reduce the possibility of color paste waste caused by color paste spraying in the state of no workpiece.

[0039] With reference to Figure 1 And Figure 2 , the adjusting mechanism 5 comprises an adjusting block 51 and an adjusting assembly 52, the adjusting block 51 is fixedly connected with the machine body 1, and the number of the adjusting block 51 in the embodiment of the application is four, which corresponds to the number of the spray gun 2. The adjusting block 51 is provided with a first passage 512 and a second passage 513, and the first passage 512 and the second passage 513 are perpendicular to and communicated with each other. The end of the feeding pipe 31 passing through the gear pump 35 is inserted into the end of the first passage 512 away from the second passage 513, and the end of the second passage 513 away from the first passage 512 is communicated with the spray gun 2 through a conduit 53. The adjusting block 51 is provided with a sliding cavity 511, the adjusting assembly 52 comprises an adjusting piece 524 and a piston body 522, the adjusting piece 524 comprises an air inlet pipe 5241 and an air pump 5242, the machine body 1 is fixedly connected with a support 11 through bolts, the air pump 5242 is fixedly connected with the support 11 through bolts, the output end of the air pump 5242 is connected with the air inlet pipe 5241, the end of the air inlet pipe 5241 away from the air pump 5242 is inserted into the sliding cavity 511, and the end of the sliding cavity 511 away from the air inlet pipe 5241 is communicated with the first passage 512 and the second passage 513. The piston body 522 is slidingly connected with the sliding cavity 511, one side of the piston body 522 away from the air inlet pipe 5241 is glued with a connecting rod 523, the end of the connecting rod 523 away from the piston body 522 is glued with a first blocking plate 521, the size of the first blocking plate 521 is greater than the inner size of the second passage 513 but smaller than the outer size of the second passage 513, so that the first blocking plate 521 can seal the second passage 513.

[0040] After spraying, the air pump 5242 supplies air to the sliding cavity 511 through the air inlet pipe 5241, the air pressure drives the piston body 522 to slide away from the air inlet pipe 5241, the piston body 522 drives the first blocking plate 521 to slide away from the second passage 513 through the connecting rod 523, so that the first blocking plate 521 closes the second passage 513, reducing the possibility of color paste continuing to transport through the second passage 513 to the spray gun 2.

[0041] With reference to Figure 2 In order to facilitate the automatic reset of the first blocking plate 521, a blocking rod 525 is fixedly connected to the inner side wall of the sliding cavity 511, a first tension spring 526 is welded to the blocking rod 525, and the end of the first tension spring 526 away from the blocking rod 525 is glued to the side of the piston body 522 away from the connecting rod 523. The pulling force of the first tension spring 526 pulls the piston body 522 to slide towards the direction away from the second passage 513, thereby causing the first blocking plate 521 to be out of contact with the second passage 513, conducting the second passage 513 and the first passage 512, and improving the smoothness of the color paste transportation.

[0042] With reference to Figure 2 In order to reduce the waste of resources caused by the color paste that cannot be used up in the first passage 512, a material return loop 4 is installed on the adjusting block 51, the material return loop 4 includes a material return pipe 41, a third passage 514 is formed in the adjusting block 51, one end of the third passage 514 is in communication with the first passage 512, the second passage 513 and the sliding cavity 511, and the other end is in communication with the material return pipe 41, and the end of the material return pipe 41 away from the third passage 514 is in communication with the barrel 32. The excess color paste in the first passage 512 enters the material return pipe 41 through the third passage 514, and finally enters the barrel 32, completing the material recycling and reducing the waste of resources.

[0043] With reference to Figure 2 In order to adjust the flow size of the third passage 514 shunting the second passage 513, the material return loop 4 further includes a material return assembly 42 for adjusting the conduction or closing of the third passage 514. The material return assembly 42 includes a second blocking plate 421 and a connecting rope 422, the second blocking plate 421 is slidingly connected to the adjusting block 51, one end of the connecting rope 422 is glued to the second blocking plate 421, and the other end is glued to the first blocking plate 521. In order to reduce the possibility of wear between the connecting rope 422 and the adjusting block 51, a winding wheel 423 is rotatably connected to the adjusting block 51, and the connecting rope 422 is wound on the winding wheel 423. In order to facilitate the reset of the second blocking plate 421, a second tension spring 424 is installed on the adjusting block 51, one end of the second tension spring 424 is welded to the adjusting block 51, and the other end is welded to the end of the second blocking plate 421 away from the connecting rope 422.

[0044] In working, the first baffle 521 slides towards the direction away from the second passage 513, and then drives the second baffle 421 to slide towards the direction of the winding wheel 423, the second baffle 421 is connected with the first baffle 521 through the connecting rope 422, when the first baffle 521 completely closes the second passage 513, the pulling force of the second tension spring 424 drives the second baffle 421 to slide towards the direction away from the winding wheel 423, the second baffle 421 completely opens the third passage 514, which is convenient for recycling the color paste and reducing resource waste; when the first baffle 521 is separated from the second passage 513, the first baffle 521 drives the second baffle 421 to slide towards the direction of the winding wheel 423 through the connecting rope 422, and then partially opens the third passage 514, which shunts the color paste of the first passage 512 and reduces the pressure of the second passage 513.

[0045] With reference to Figure 2 And Figure 3 In order to improve the cleaning performance of the color paste, the adjusting block 51 is slidably connected with a filter plate 515, the filter plate 515 slides along the vertical direction, and the filter plate 515 is used for filtering the color paste flowing through the first passage 512. In order to facilitate cleaning of the filter residue adhered to the filter plate 515, the adjusting block 51 is provided with a regulating element 516, the regulating element 516 comprises an injection cylinder 5161, a regulating piston 5162 and a piston rod 5163, the injection cylinder 5161 is glued to the adjusting block 51, the injection cylinder 5161 is arranged along the vertical direction, the lower side wall of the sliding cavity 511 is provided with an air outlet hole 5111, the air outlet hole 5111 is inserted with a gas guide pipe 5112, and the end of the gas guide pipe 5112 away from the air outlet hole 5111 is in communication with the lower end of the injection cylinder 5161. The regulating piston 5162 is slidably connected with the injection cylinder 5161, the end of the regulating piston 5162 away from the gas guide pipe 5112 is glued to the piston rod 5163, and the end of the piston rod 5163 away from the regulating piston 5162 is glued to the filter plate 515. The top wall of the first passage 512 is glued with a brush 517, and the brush 517 abuts against the filter plate 515.

[0046] In order to clean the first channel, facilitate the replacement of different color paste varieties, the gas in the air pump 5242 supplies gas to the sliding cavity 511, the gas pressure drives the piston body 522 to slide towards the second passage 513, and then the first blocking plate 521 closes the second passage 513. The air pump 5242 continues to supply air, and the gas in the sliding cavity 511 enters the syringe 5161 through the air duct 5112, so that the pressure in the syringe 5161 increases, and the gas pressure drives the regulating piston 5162 to slide vertically upward, and then drives the filter plate 515 to slide vertically upward through the piston rod 5163. The filter plate 515 slides upward and rubs against the brush 517, and then the brush 517 cleans and removes the filter residue adhered to the filter plate 515. The cleaning liquid in the barrel 32 enters the first passage 512 through the feed pipe 31, and then washes the removed filter residue, which facilitates the replacement of new color paste varieties and reduces the occurrence of mixing.

[0047] Referring to Figure 2 And Figure 4 The body 1 is provided with a rotating part 12, which comprises a first motor 121 and a base 122. The first motor 121 is fixedly connected to the body 1 by bolts. The base 122 is coaxially welded to the output shaft of the first motor 121. A gas expansion shaft 123 is fixedly connected to the base 122 by bolts. A gas distribution pipe 124 is in communication with the gas inlet end of the gas expansion shaft 123. The end of the gas distribution pipe 124 away from the gas expansion shaft 123 is in communication with the gas inlet pipe 5241 through a three-way valve 125. A sliding pipe 126 is coaxially sleeved on the gas expansion shaft 123. A plurality of through holes 1261 are formed in the side wall of the sliding pipe 126. A key 1231 is slidably connected to the gas expansion shaft 123. The key 1231 on the gas expansion shaft 123 is correspondingly arranged with the through holes 1261. The through holes 1261 facilitate the key 1231 to pass through. A sliding cylinder 127 is coaxially sleeved on the sliding pipe 126 and is in close contact with the sliding pipe 126. A gun seat 13 is integrally formed on the sliding cylinder 127. The spray gun 2 is fixed to the gun seat 13 by screws. A driving part 14 is mounted on the gun seat 13. In the present application, the driving part 14 is a second motor 141. A worm 142 is coaxially welded to the output shaft of the second motor 141. A worm wheel 143 is rotatably connected to the gun seat 13. The worm wheel 143 is in meshing engagement with the worm 142. A gear 144 is coaxially welded to the worm wheel 143. A rack 145 is welded to the sliding pipe 126. The length direction of the rack 145 is arranged in the vertical direction.

[0048] When spraying, the output shaft of the second motor 141 rotates and drives the worm 142 to rotate, the worm 142 meshes with the worm gear 143, and then drives the gear 144 to rotate, the gear 144 meshes with the rack 145, the rack 145 is fixed on the sliding pipe 126, and then the gear 144 moves along the length direction of the rack 145, thereby driving the spray gun 2 to move in the vertical direction, and increasing the spraying area of the workpiece. The gas inflation shaft 123 is supplied with gas through the gas distribution pipe 124, the gas inflation shaft 123 expands, the key 1231 on the gas inflation shaft 123 extends out of the through hole 1261, and the key 1231 fixes the sliding cylinder 127. Then the output shaft of the first motor 121 rotates, drives the base 122 to rotate, the base 122 drives the sliding cylinder 127 to rotate synchronously, and then drives the spray gun 2 to rotate, the spray gun 2 rotates to spray the workpiece, and the spraying area of the workpiece is further increased, which is convenient to operate.

[0049] The working principle of the water-based fluorocarbon color paste electrostatic spraying system is as follows: during work, first, start the diaphragm pump 34 and the gear pump 35, the diaphragm pump 34 sucks the color paste in the barrel 32 into the feeding pipe 31, and the color paste passes through the diaphragm pump 34 and the gear pump 35 in turn along the feeding pipe 31. At the same time, the electrostatic generator 6 applies static electricity to the color paste in the feeding pipe 31, so that the color paste has a negative charge. After the color paste passes out of the gear pump 35 and enters the first passage 512, at the same time, the air pump 5242 supplies air to the sliding cavity 511 through the air inlet pipe 5241, the air pressure in the sliding cavity 511 increases, and then drives the first blocking plate 521 to slide towards the second passage 513, maintains the flow rate of the air in the air inlet pipe 5241 unchanged, and makes the first blocking plate 521 located between the second passage 513 and the sliding cavity 511. The pulling force of the second tension spring 424 drives the second blocking plate 421 to slide away from the third passage 514, and then makes the third passage 514 in a half-open state.

[0050] Part of the color paste in the first passage 512 enters the third passage 514, the color paste entering the third passage 514 flows back to the barrel 32 through the return pipe 41, and reduces the waste. Another part enters the second passage 513, and then enters the spray gun 2 through the conduit 53, and then sprays the workpiece. At the same time, open the three-way valve 125, the air in the air inlet pipe 5241 enters the gas inflation shaft 123 through the gas distribution pipe 124, the gas inflation shaft 123 expands, and the key 1231 on the gas inflation shaft 123 abuts against the sliding cylinder 127 after passing through the through hole 1261. The output shaft of the second motor 141 rotates, and then drives the base 122 to rotate, thereby completing the rotation of the gun seat 13, the gun seat 13 drives the spray gun 2 to rotate, and increases the spraying area of the spray gun 2.

[0051] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An aqueous fluorocarbon colorant electrostatic spraying system comprising a machine body (1) provided with a spray gun (2) for spraying a workpiece, characterized in that: The machine body (1) is provided with a feeding loop (3) for feeding pigment into the spray gun (2), and an electrostatic generator (6) is connected to the feeding loop (3). The machine body (1) is provided with an adjustment mechanism (5) for adjusting the opening and closing of the spray gun (2). The adjustment mechanism (5) includes an adjustment block (51), in which a first passage (512) and a second passage (513) are provided. One end of the first passage (512) is connected to the second passage (513), and the other end of the first passage (512) is connected to the feed loop (3). The end of the second passage (513) away from the first passage (512) is connected to the spray gun (2). The machine body (1) is provided with an adjustment component (52) for controlling the opening and closing of the second passage (513). The adjustment assembly (52) includes a first baffle plate (521) and a piston body (522). The first baffle plate (521) is adapted to the second passage (513). The first baffle plate (521) and the piston body (522) are connected by a connecting rod (523). The piston body (522) is slidably connected to the adjustment block (51). The adjustment block (51) is provided with an adjustment member (524) for driving the piston body (522) to slide toward the second passage (513). The adjusting block (51) is provided with a third passage (514), which is connected to the first passage (512) and the second passage (513). The machine body (1) is provided with a return loop (4), one end of which is connected to the end of the third passage (514) away from the first passage (512), and the other end is connected to the end of the feeding loop (3) away from the first passage (512). The adjusting block (51) is provided with a return component (42) for adjusting the opening and closing of the third passage (514). The return material assembly (42) includes a second baffle plate (421) and a connecting rope (422). The second baffle plate (421) is slidably connected to the adjusting block (51). One end of the connecting rope (422) is fixedly connected to the second baffle plate (421), and the other end is fixedly connected to the first baffle plate (521). A winding wheel (423) for winding the connecting rope (422) is rotatably connected to the adjusting block (51). A second tension spring (424) is provided on the adjusting block (51) for driving the second baffle plate (421) to slide away from the third passage (514).

2. The aqueous fluorocarbon colorant electrostatic spray system of claim 1, wherein: The adjusting block (51) is provided with a sliding cavity (511), which is connected to the second passage (513). The piston body (522) is slidably connected to the sliding cavity (511). The adjusting member (524) includes an air inlet pipe (5241), which is connected to one end of the sliding cavity (511) away from the second passage (513). The adjusting block (51) is provided with a first tension spring (526) for driving the piston body (522) to slide in a direction away from the second passage (513).

3. A water-based fluorocarbon colorant electrostatic spraying system according to claim 2, wherein: A gun holder (13) is slidably connected to the body (1), and the spray gun (2) is fixedly connected to the gun holder (13). A rack (145) is provided on the body (1), and a gear (144) for meshing with the rack (145) is rotatably connected to the gun holder (13). A worm gear (143) is coaxially fixedly connected to the gear (144), and a worm (142) for driving the worm gear (143) to rotate is rotatably connected to the gun holder (13). A driving component (14) for driving the worm gear (142) to rotate is provided on the gun holder (13).

4. The aqueous fluorocarbon colorant electrostatic spray system of claim 3, wherein: The body (1) is provided with a sliding tube (126), and a sliding cylinder (127) is sleeved on the sliding tube (126). The gun base (13) is fixedly connected to the sliding cylinder (127). The rack (145) is fixedly connected to the sliding tube (126). The sliding tube (126) is provided with an air shaft (123) for fixing the sliding tube (126) and the sliding cylinder (127). The air inlet pipe (5241) is connected to the air shaft (123). The body (1) is provided with a rotating component (12) for driving the air shaft (123) to rotate.

5. The aqueous fluorocarbon colorant electrostatic spray system of claim 3, wherein: A filter plate (515) is slidably connected to the adjusting block (51), the filter plate (515) is used to filter the pigment in the first channel (512), a brush (517) is provided on the adjusting block (51), the brush (517) abuts against the filter plate (515), and an adjusting control (516) is provided on the adjusting block (51) for driving the filter plate (515) to slide away from the first channel (512).

6. The water-based fluorocarbon pigment electrostatic spraying system according to claim 5, characterized in that: The adjusting block (51) is provided with an injection cylinder (5161). The adjusting control (516) includes an adjusting piston (5162) and a piston rod (5163). The adjusting piston (5162) is slidably connected to the injection cylinder (5161). One end of the piston rod (5163) is fixedly connected to the filter plate (515). The other end of the piston rod (5163) is connected to the adjusting piston (5162). The end of the injection cylinder (5161) away from the filter plate (515) is connected to a gas guide tube (5112). The sliding cavity (511) has an air outlet (5111) on its side wall facing the second passage (513). The end of the gas guide tube (5112) away from the injection cylinder (5161) is connected to the air outlet (5111).

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