Surface treatment process

Abstract

The invention discloses a surface treatment process which comprises the following steps: placing a storage rack in a weakly alkaline solution tank for soaking, and then cleaning the soaked storage rack by utilizing ultrasonic waves to remove stains on the surface of the storage rack; the cleaned storage rack is placed in drying equipment to be dried, the solution on the surface of the storage rack is removed, and the storage rack is kept dry; the dried storage rack is placed in spraying equipment, a coating is sprayed to the surface of the storage rack, and then the sprayed coating is dried and cured; the spraying equipment comprises a paint spraying barrel, a paint spraying unit is arranged in the paint spraying barrel, electric sliding rails are symmetrically installed on the two sides of the interior of the paint spraying barrel, the paint spraying unit is connected with sliding seats of the electric sliding rails, and a first opening is formed in one side of the paint spraying barrel. And a comprehensive spraying effect is formed on the surface of the storage rack, the problem that the storage rack lacks paint spraying is avoided, one-time paint spraying can be completed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of surface treatment, in particular to a surface treatment process. Background Art

[0002] The storage rack is a metal shelf composed of a base plate and pillars for placing sundries. It is mostly supported by a strip bracket and supported by a base plate. It has a unique shape, smart design, easy loading and unloading, clean and bright, and an open design that makes the storage visible at a glance. Surface treatment is required during the production of metal products such as storage racks. Surface treatment refers to the treatment through mechanical and chemical methods to form a protective layer on the surface of the product. The general process includes pre-treatment, film formation, and post-film treatment. Pre-treatment includes spraying, shot blasting, grinding, polishing, waxing, chroming, painting, electroplating, anodizing and electrophoresis. Spraying has the advantages of good coating corrosion resistance, low price and a variety of colors, and has become a common choice for surface treatment of metal products such as storage racks.

[0003] After searching, Chinese patent announcement number: CN218609977U discloses a paint spraying device for metal rack production, including a carrying plate, a fixed bracket is provided at the top of the carrying plate, a motor 1 is fixedly provided at the top of the fixed bracket, a first threaded column is fixedly provided at the rotating end of the motor 1, a left and right moving block is threadedly provided on the first threaded column, a support plate is fixedly provided at the bottom end of the left and right moving blocks, a motor 2 is fixedly provided on the connecting bracket, a connecting rod is fixedly provided at the rotating end of the motor 2, a cleaning brush is fixedly provided at the bottom end of the connecting rod, a fixed tooling 1 is fixedly provided at the left end of the bottom end of the fixed bracket, a fixed tooling 2 is fixedly provided at the right end of the bottom end of the fixed bracket, a support column is fixedly provided at the bottom end of the carrying plate, a connecting plate is fixedly provided on the support column, a paint box is provided on the connecting plate, a liquid pump is provided on the top of the paint box, a conduit is fixedly provided at the water outlet end of the liquid pump, and a spray head is fixed on the conduit.

[0004] The above scheme still has some shortcomings when painting the racks. Due to the design of the racks, there are many edges and corners on the racks, and the nozzle angle in the above scheme is fixed, so it is only possible to paint the racks at fixed angles, making it difficult to paint the racks completely, easily resulting in unpainted dead corners, and multiple painting processes are required to fully cover them, resulting in low production efficiency. Summary of the invention

[0005] The purpose of the present application is to provide a surface treatment process to solve the problem that the existing storage racks are difficult to cover completely in one spray painting, easily resulting in unpainted dead corners, requiring multiple spray painting processes to achieve full coverage, and having low production efficiency.

[0006] To achieve the above purpose, the present application provides the following technical solution: a surface treatment process, comprising the following steps:

[0007] S1, placing the rack in a weak alkaline solution pool for soaking, and then using ultrasonic waves to clean the soaked rack to remove stains on the surface of the rack;

[0008] S2, placing the cleaned rack in a drying device for drying, removing the solution on the surface of the rack, and keeping the rack dry;

[0009] S3, placing the dried rack in a spraying device, spraying a coating on the surface of the rack, and then drying and curing the sprayed coating;

[0010] The spraying equipment includes a paint spraying barrel, a paint spraying unit is arranged inside the paint spraying barrel, electric slide rails are symmetrically installed on both sides of the paint spraying barrel, the paint spraying unit is connected to the slide seat of the electric slide rail, a first opening is opened on one side of the paint spraying barrel, a second opening is opened on the other side of the paint spraying barrel, and a feeding and discharging unit is installed on the outer wall of the paint spraying barrel, and the feeding and discharging unit is used to fix the storage rack and make the storage rack move back and forth in a straight line along the axial direction of the paint spraying barrel;

[0011] The paint spraying unit includes a first paint spraying mechanism, a second paint spraying mechanism, a multi-angle adjustment mechanism and a driving assembly. The first paint spraying mechanism and the second paint spraying mechanism each include a plurality of paint spraying heads. The multi-angle adjustment mechanism is installed between the first paint spraying mechanism and the second paint spraying mechanism and is used to adjust the spray angle of the paint spraying head. The spray angle of the first paint spraying mechanism rotates toward a first opening direction, and the spray angle of the second paint spraying mechanism rotates toward a second opening direction. The driving assembly is used to drive the first paint spraying mechanism, the second paint spraying mechanism and the multi-angle adjustment mechanism to rotate.

[0012] Preferably, the first paint spraying mechanism also includes a material guide sleeve fixedly connected between the slide seats of the two electric slide rails, a feed pipe is fixedly connected to the material guide sleeve, a circle of material storage grooves is circumferentially arranged on the inner wall of the material guide sleeve, a material storage ring tube is sealed and rotatably connected in the material storage groove, the material storage ring tube is communicated with the material storage groove, a plurality of paint spray heads are arranged at equal intervals along the circumferential direction of the inner wall of the material storage ring tube, the paint spray head is rotatably connected and communicated with the material storage ring tube, a reset assembly is installed on the material storage ring tube at the paint spray head, and the second paint spraying mechanism has the same structure as the first paint spraying mechanism.

[0013] Preferably, the multi-angle adjustment mechanism includes a fixed ring, a rotating ring arranged inside the fixed ring, and an adjustment sleeve rotatably connected to the inside of the rotating ring, the fixed ring is fixedly connected between the slide seats of the two electric slide rails, and a plurality of connecting plates are fixedly connected between the inner wall of the fixed ring and the outer wall of the rotating ring at equal intervals along the circumferential direction, the two ends of the adjustment sleeve are respectively arranged inside the material storage ring tubes of the first paint spraying mechanism and the second paint spraying mechanism, and a plurality of push blocks are evenly distributed at both ends of the adjustment sleeve along the circumferential direction.

[0014] Preferably, the pushing block and the adjusting sleeve are integrally formed, and there is an inclined arc transition between the two sides of the pushing block and the adjusting sleeve, and the paint heads of the first paint spraying mechanism and the second paint spraying mechanism are in contact with the end of the adjusting sleeve.

[0015] Preferably, the drive assembly includes a first ring gear, a second ring gear, a first motor, a drive shaft, a first gear and a second gear, the first ring gear being provided with two gears respectively fixedly connected to opposite sides of a material storage ring tube in the first paint spraying mechanism and the second paint spraying mechanism, the second ring gear being fixedly sleeved on the second ring gear on the outside of an adjustment sleeve, the first motor being mounted on a slide seat of one of the electric slide rails, one end of the drive shaft being fixedly connected to an output end of the first motor, the first gear and the second gear being fixedly connected to the drive shaft, the first gear being meshed with one of the first ring gears, and the second gear being meshed with the second ring gear.

[0016] Preferably, the driving assembly also includes a rotating shaft, which is installed on a slide seat of another electric slide rail through a bearing seat, and third gears are fixedly connected to both ends of the rotating shaft, and the two third gears are respectively meshed with the first gear rings of the first paint spraying mechanism and the second paint spraying mechanism.

[0017] Preferably, the reset assembly includes a fixed plate fixedly connected to the side of the material storage ring tube away from the multi-angle adjustment mechanism, the fixed plate is provided with a through hole, a moving rod is movably connected in the through hole, an installation groove is provided at one end of the moving rod close to the paint spray head, a roller is rotatably connected in the installation groove, a limit block is fixedly sleeved on the outer side of the moving rod, and a reset spring is sleeved between the limit block and the fixed plate and located on the outer side of the moving rod.

[0018] Preferably, a guide groove is provided in an annular shape on the outer circumferential wall of the roller, the guide groove is adapted to the shape of the paint spray head, and the roller abuts against the outer wall of the paint spray head.

[0019] Preferably, the feeding and discharging unit includes a frame fixedly connected to the outer wall of the paint spray tube, a screw rod is rotatably connected in the frame, a second motor is installed on one side of the frame, an output end of the second motor is fixedly connected to one end of the screw rod, a movable seat is threadedly connected to the outer side of the screw rod, and a first connecting rod and a second connecting rod are fixedly connected on both sides of the outer wall of the movable seat, respectively, an end of the first connecting rod away from the movable seat is fixedly connected to a first sealing plate, the first sealing plate is used to close the first opening, an end of the second connecting rod away from the movable seat extends to the inside of the paint spray tube and is fixedly connected to a second sealing plate, a rack clamp is installed on the opposite sides of the first sealing plate and the second sealing plate, the second sealing plate closes the second opening, and the diameter of the first opening is larger than the diameter of the second opening.

[0020] Preferably, a collecting box is fixedly connected to the bottom of the paint spray tube, and a discharge trough communicating with the collecting box is provided at the bottom inner end of the paint spray tube.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] 1. In the present invention, the paint spraying unit is arranged, and the paint spraying unit moves axially along the paint spraying tube through the electric slide rail. The first paint spraying mechanism and the second paint spraying mechanism are driven to rotate through the driving assembly, so that the paint spraying head rotates around the storage rack. At the same time, the multi-angle adjustment mechanism drives the paint spraying head in the first paint spraying mechanism to reciprocate in the first opening direction, and drives the paint spraying head in the second paint spraying mechanism to reciprocate in the second opening direction, so as to expand the painting range of the storage rack, form a comprehensive spraying effect on the surface of the storage rack, avoid the problem of lack of paint on the storage rack, and complete the painting in one time, thereby greatly improving the production efficiency.

[0023] 2. In the present invention, a feeding and discharging unit is provided, and the second motor drives the screw to rotate, so that the movable seat moves along the axial direction of the screw, and the first closing plate is driven away from the frame by the first connecting rod, and the second connecting rod drives the second closing plate to pass through the first opening, so that the storage rack can be installed and fixed on the storage rack fixture between the first closing plate and the second closing plate, and then the first closing plate and the second closing plate are driven to move again by the second motor to transfer the storage rack to the inside of the paint spray barrel. At the same time, the first closing plate closes the first opening, and the second closing plate closes the second opening, so as to facilitate the feeding and discharging of the storage rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the spraying equipment of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the spraying equipment of the present invention;

[0027] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the electric slide rail and the paint spraying unit of the present invention;

[0028] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the paint spraying unit of the present invention;

[0029] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the first paint spraying mechanism of the present invention;

[0030] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the multi-angle adjustment mechanism of the present invention;

[0031] Figure 7 A top view of the paint spraying unit of the present invention;

[0032] Figure 8 for Figure 4 A schematic diagram of the enlarged structure of region A;

[0033] Fig. 9 It is a three-dimensional enlarged structural schematic diagram of the feeding and discharging unit of the present invention.

[0034] In the figure: 1, paint spray barrel; 101, first opening; 102, second opening; 103, discharge slot; 2, paint spray unit; 21, first paint spray mechanism; 211, guide sleeve; 212, storage ring tube; 213, paint spray head; 214, reset assembly; 2141, fixed plate; 2142, moving rod; 2143, roller; 2144, limit block; 2145, reset spring; 22, second paint spray mechanism; 23, multi-angle adjustment mechanism; 231, fixed ring; 232, rotating ring; 233, Connecting plate; 234, adjusting sleeve; 235, pushing block; 24, driving assembly; 241, first gear ring; 242, second gear ring; 243, first motor; 244, driving shaft; 245, first gear; 246, second gear; 247, rotating shaft; 248, third gear; 3, electric slide rail; 4, feeding and discharging unit; 41, frame; 42, second motor; 43, screw rod; 44, moving seat; 45, first connecting rod; 46, first closing plate; 47, second connecting rod; 48, second closing plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example: Figure 1-Figure 9 As shown, an embodiment of the present invention provides a surface treatment process, characterized in that it includes the following steps:

[0037] S1, placing the rack in a weak alkaline solution pool for soaking, and then using ultrasonic waves to clean the soaked rack to remove stains on the surface of the rack;

[0038] S2, placing the cleaned rack in a drying device for drying, removing the solution on the surface of the rack, and keeping the rack dry;

[0039] S3, placing the dried rack in a spraying device, spraying a coating on the surface of the rack, and then drying and curing the sprayed coating;

[0040] The spraying equipment includes a paint spraying barrel 1, a paint spraying unit 2 is arranged inside the paint spraying barrel 1, electric slide rails 3 are symmetrically installed on both sides of the paint spraying barrel 1, the paint spraying unit 2 is connected to the slide seat of the electric slide rail 3, a first opening 101 is opened on one side of the paint spraying barrel 1, and a second opening 102 is opened on the other side of the paint spraying barrel 1. A material inlet and outlet unit 4 is installed on the outer wall of the paint spraying barrel 1, and the material inlet and outlet unit 4 is used to fix the storage rack and make the storage rack move back and forth in a straight line along the axial direction of the paint spraying barrel 1;

[0041] The paint spraying unit 2 includes a first paint spraying mechanism 21, a second paint spraying mechanism 22, a multi-angle adjustment mechanism 23 and a driving assembly 24. The first paint spraying mechanism 21 and the second paint spraying mechanism 22 each include a plurality of paint spray heads 213. The multi-angle adjustment mechanism 23 is installed between the first paint spraying mechanism 21 and the second paint spraying mechanism 22, and is used to adjust the spray angle of the paint spray head 213. The spray angle of the first paint spraying mechanism 21 rotates toward the first opening 101, and the spray angle of the second paint spraying mechanism 22 rotates toward the second opening 102. The driving assembly 24 is used to drive the first paint spraying mechanism 21, the second paint spraying mechanism 22 and the multi-angle adjustment mechanism 23 to rotate.

[0042] Specifically, the rack is fixed on the feeding and discharging unit 4 and transferred to the inside of the paint spray barrel 1. Then the paint spray unit 2 is moved axially along the paint spray barrel 1 through the electric slide rail 3. The first paint spray mechanism 21 and the second paint spray mechanism 22 are driven to rotate through the driving component 24, so that the paint head 213 rotates around the rack. At the same time, the multi-angle adjustment mechanism 23 drives the paint head 213 in the first paint spray mechanism 21 to reciprocate in the direction of the first opening 101, and drives the paint head 213 in the second paint spray mechanism 22 to reciprocate in the direction of the second opening 102, so as to expand the painting range of the rack, form a comprehensive spraying effect on the surface of the rack, avoid the problem of lack of paint on the rack, and complete the painting in one time, thereby greatly improving the production efficiency.

[0043] As an implementation method of this embodiment, Figure 1 , Figure 2 and Fig. 9As shown, the feeding and discharging unit (4 includes a frame body 41 fixedly connected to the outer wall of the paint spray barrel 1, a screw rod 43 is rotatably connected in the frame body 41, a second motor 42 is installed on one side of the frame body 41, an output end of the second motor 42 is fixedly connected to one end of the screw rod 43, a movable seat 44 is threadedly connected to the outer side of the screw rod 43, and a first connecting rod 45 and a second connecting rod 47 are respectively fixedly connected to the outer wall of the movable seat 44 on both sides, the first connecting rod 45 is an L-shaped structure, and the second connecting rod 47 is a U-shaped structure. The end of the first connecting rod 45 away from the movable seat 44 is fixedly connected to the first sealing plate 46, and the first sealing plate 46 is used to close the first opening 101, and the end of the second connecting rod 47 away from the movable seat 44 extends to the inside of the paint spray barrel 1 and is fixedly connected to the second sealing plate 48, and the second sealing plate 48 closes the second opening 102. A rack fixture is installed on the opposite side of the closing plate 46 and the second closing plate 48. The diameter of the first opening 101 is larger than the diameter of the second opening 102. The second motor 42 drives the screw rod 43 to rotate, and the movable seat 44 is moved axially along the screw rod 43. The first connecting rod 45 drives the first closing plate 46 away from the frame 41, and the second connecting rod 47 drives the second closing plate 48 to pass through the first opening 101, so that the rack can be installed and fixed on the rack fixture between the first closing plate 46 and the second closing plate 48. Then, the second motor 42 drives the first closing plate 46 and the second closing plate 48 to move again, and the rack is transferred to the inside of the paint spray tube 1. At the same time, the first closing plate 46 closes the first opening 101, and the second closing plate 48 closes the second opening 102, so as to facilitate the feeding and unloading of the rack.

[0044] As an implementation method of this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the first paint spraying mechanism 21 also includes a material guide sleeve 211 fixedly connected between the slide seats of the two electric slide rails 3, and a feed pipe is fixedly connected to the material guide sleeve 211, and the feed pipe is connected to the paint supply equipment outside the paint spraying tube 1. A circle of material storage grooves is circumferentially arranged on the inner wall of the material guide sleeve 211, and a material storage ring tube 212 is sealed and rotatably connected in the material storage groove, and the material storage ring tube 212 is communicated with the material storage groove. A plurality of paint spray heads 213 are arranged at equal intervals along the circumferential direction of the inner wall of the material storage ring tube 212, and the paint spray heads 213 are rotatably connected and communicated with the material storage ring tube 212. The spray paint is transported to the material guide sleeve 211 through the feed pipe, and then enters the material storage groove and is transported to the material storage ring tube 212, and is sprayed out through the paint spray head 213 to spray paint on the surface of the rack, wherein the second paint spraying mechanism 22 has the same structure as the first paint spraying mechanism 21.

[0045] As an implementation method of this embodiment, Figure 3 , Figure 4 and Figure 6As shown, the multi-angle adjustment mechanism 23 includes a fixed ring 231, a rotating ring 232 arranged inside the fixed ring 231, and an adjusting sleeve 234 rotatably connected to the inside of the rotating ring 232. The fixed ring 231 is fixedly connected between the slide seats of the two electric slide rails 3. A plurality of connecting plates 233 are fixedly connected between the inner wall of the fixed ring 231 and the outer wall of the rotating ring 232 at equal intervals in the circumferential direction. The two ends of the adjusting sleeve 234 are respectively arranged inside the material storage ring tube 212 of the first paint spraying mechanism 21 and the second paint spraying mechanism 22. A plurality of pushing blocks 235 are evenly distributed at both ends of the adjusting sleeve 234 in the circumferential direction. The pushing blocks 235 and the adjusting sleeve 234 are integrally formed to improve the structural stability of the pushing blocks 235 and the adjusting sleeve 234. There is an inclined arc transition between the two sides of the pushing blocks 235 and the adjusting sleeve 234. The paint heads 213 of the first paint spraying mechanism 21 and the second paint spraying mechanism 22 are connected to the ends of the adjusting sleeve 234. The paint spray head 213 is pushed and rotated to different positions by the inclined arc transition between the two sides of the pushing block 235 and the adjusting sleeve 234. The paint spray head 213 is reset by the reset assembly 214 and fits on the outer walls of the adjusting sleeve 234 and the pushing block 235, so that the paint spray head 213 can be formed into multiple painting angles, so that different positions of the rack can be painted, and the painting dead angle is avoided, thereby improving the overall painting effect of the rack.

[0046] In this embodiment, the number of pushing blocks 235 on one side of the adjusting sleeve 234 is different from the number of paint heads 213 in the first paint spraying mechanism 21 and the second paint spraying mechanism 22. For example, when the number of paint heads 213 in the first paint spraying mechanism 21 and the second paint spraying mechanism 22 is N, the number of pushing blocks 235 on one side of the adjusting sleeve 234 can be N-3, N-2, N-1, N+1, N+2, N+3, etc., so that the paint spraying directions of the paint heads 213 in the first paint spraying mechanism 21 and the second paint spraying mechanism 22 are different, thereby achieving multi-directional painting of the rack, greatly improving the overall effect of painting the rack.

[0047] As an implementation method of this embodiment, Figure 7As shown, the driving assembly 24 includes a first gear ring 241, a second gear ring 242, a first motor 243, a driving shaft 244, a first gear 245 and a second gear 246. The first gear ring 241 is provided with two gears respectively fixedly connected to the opposite sides of the material storage ring tube 212 in the first paint spraying mechanism 21 and the second paint spraying mechanism 22. The second gear ring 242 is fixedly sleeved on the second gear ring 242 outside the adjustment sleeve 234. The first motor 243 is installed on the slide seat of one of the electric slide rails 3. One end of the driving shaft 244 is fixedly connected to the output end of the first motor 243. The first gear 245 and the second gear 246 are fixedly connected to the driving shaft 244. The first gear 245 is meshed with one of the first gear rings 241, and the second gear 246 is meshed with the second gear ring 242. The driving shaft 244 is driven to rotate by the operation of the first motor 243 to drive the first gear 245 and the second gear 246 to rotate, so that the first gear 245 drives the The first gear ring 241 is driven to rotate, and the first gear ring 241 drives the material storage ring tube 212 to rotate synchronously. In addition, the driving component 24 also includes a rotating shaft 247, and the rotating shaft 247 is installed on the slide seat of another electric slide rail 3 through a bearing seat. Both ends of the rotating shaft 247 are fixedly connected with a third gear 248. The two third gears 248 are respectively meshed with the first gear rings 241 of the first paint spraying mechanism 21 and the second paint spraying mechanism 22. The rotating first gear ring 241 drives the third gear 248 meshed therewith to rotate, and drives another third gear 248 to rotate through the rotating shaft 247. The third gear 248 rotates the first gear ring 241 of the other paint spraying mechanism to rotate, thereby driving the material storage ring tubes 212 of the two paint spraying mechanisms to rotate synchronously, and the surface of the rack is rotated to spray paint. The second gear 246 drives the second gear ring 242 to rotate, thereby driving the adjusting sleeve 234 to rotate to achieve angle adjustment of the paint spraying head 213, so that the paint spraying covers the entire outside of the rack.

[0048] In this embodiment, if Figure 4 and Figure 8As shown, the reset assembly 214 includes a fixed plate 2141 fixedly connected to the side of the material storage ring tube 212 away from the multi-angle adjustment mechanism 23, the fixed plate 2141 is an L-shaped structure, a through hole is opened on the fixed plate 2141, a moving rod 2142 is movably connected in the through hole, a mounting groove is opened at one end of the moving rod 2142 close to the paint spray head 213, a roller 2143 is rotatably connected in the mounting groove, a limit block 2144 is fixedly sleeved on the outer side of the moving rod 2142, a reset spring 2145 is sleeved between the limit block 2144 and the fixed plate 2141 and located on the outer side of the moving rod 2142, a guide groove is opened in an annular manner on the outer circumferential wall of the roller 2143, the guide groove is adapted to the shape of the paint spray head 213, and the roller 2143 abuts against the paint spray head 21 When the pushing block 235 of the multi-angle adjustment mechanism 23 contacts the paint spray head 213 and the angle of the paint spray head 213 is adjusted, the roller 2143 moves synchronously with the paint spray head 213, and the roller 2143 pushes the moving rod 2142 to move, thereby squeezing the reset spring 2145. When the paint spray head 213 moves away from the range of the pushing block 235, the reset spring 2145 drives the moving rod 2142 and the roller 2143 to reset, and the roller 2143 presses against the surface of the paint spray head 213 and rolls, so that the paint spray head 213 is always pressed against the side wall of the adjustment sleeve 234 and the pushing block 235, which can be used for the rapid reset of the paint spray head 213 to achieve the reciprocating adjustment of the angle of the paint spray head 213 and improve the painting effect.

[0049] In this embodiment, if Figure 1 and Figure 2 As shown, a collecting box is fixedly connected to the bottom of the paint spray tube 1, and a discharge trough 103 communicated with the collecting box is opened at the bottom of the interior of the paint spray tube 1. During the painting process, excess paint flows into the collecting box through the discharge trough 103. A recovery pipe is connected to the collecting box to facilitate the recovery and reuse of the paint.

[0050] The working principle of the present invention is as follows: when in use, the second motor 42 drives the screw rod 43 to rotate, and the movable seat 44 moves axially along the screw rod 43, and the first connecting rod 45 drives the first sealing plate 46 away from the frame 41, and the second connecting rod 47 drives the second sealing plate 48 to pass through the first opening 101, and then the storage rack is installed and fixed on the storage rack fixture between the first sealing plate 46 and the second sealing plate 48, and the second motor 42 works again to move the storage rack to the inside of the paint spray barrel 1, and the first sealing plate 46 closes the first opening 101, and the second sealing plate 48 closes the second opening 102;

[0051] The paint spraying unit 2 moves axially along the paint spraying barrel 1 through the electric slide rail 3, and the spray paint is transported to the guide sleeve 211 through the feed pipe, and then enters the storage tank and is transported to the storage ring tube 212, and is sprayed out through the paint spraying head 213. At the same time, the first motor 243 drives the driving shaft 244 to rotate, so as to drive the first gear 245 and the second gear 246 to rotate, so that the first gear 245 drives the first gear ring 241 to rotate, and the rotating first gear ring 241 drives the third gear 248 meshing therewith to rotate, and drives another third gear 248 to rotate through the rotating shaft 247, and the third gear 248 drives the first gear ring 241 of another paint spraying mechanism to rotate, thereby driving the storage ring tubes 212 of the two paint spraying mechanisms to rotate synchronously, and the surface of the rack is rotated and painted, and the second gear 246 drives The second gear ring 242 rotates, thereby driving the adjustment sleeve 234 to rotate. The rotation of the adjustment sleeve 234 can drive the push block 235 to rotate synchronously, and the circumferential position of the push block 235 on the adjustment sleeve 234 is adjusted, so that the paint head 213 slides along the outer wall of the adjustment sleeve 234 and the push block 235. The paint head 213 is pushed and rotated to different positions through the inclined arc transition between the two sides of the push block 235 and the adjustment sleeve 234, and the paint head 213 is reset by the reset component 214, and fits on the outer wall of the adjustment sleeve 234 and the push block 235, so that the paint head 213 forms a plurality of paint spraying angles, which can spray paint on different positions of the rack, avoid dead angles for painting, improve the overall painting effect of the rack, and complete the painting in one time, thereby greatly improving production efficiency.

[0052] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A surface treatment process, characterized in that: The steps include: S1, placing the rack in a weak alkaline solution pool for soaking, and then using ultrasonic waves to clean the soaked rack to remove stains on the surface of the rack; S2, placing the cleaned rack in a drying device for drying, removing the solution on the surface of the rack, and keeping the rack dry; S3, placing the dried rack in a spraying device, spraying a coating on the surface of the rack, and then drying and curing the sprayed coating; The spraying equipment comprises a paint spraying barrel (1), wherein a paint spraying unit (2) is arranged inside the paint spraying barrel (1), electric slide rails (3) are symmetrically installed on both sides of the paint spraying barrel (1), the paint spraying unit (2) is connected to the slide seat of the electric slide rail (3), a first opening (101) is opened on one side of the paint spraying barrel (1), and a second opening (102) is opened on the other side of the paint spraying barrel (1), and a material inlet and outlet unit (4) is installed on the outer wall of the paint spraying barrel (1), and the material inlet and outlet unit (4) is used to fix a storage rack and make the storage rack move back and forth in a straight line along the axial direction of the paint spraying barrel (1); The paint spraying unit (2) comprises a first paint spraying mechanism (21), a second paint spraying mechanism (22), a multi-angle adjustment mechanism (23) and a driving assembly (24); the first paint spraying mechanism (21) and the second paint spraying mechanism (22) each comprise a plurality of paint spraying heads (213); the multi-angle adjustment mechanism (23) is installed between the first paint spraying mechanism (21) and the second paint spraying mechanism (22) and is used to adjust the spraying angle of the paint spraying head (213); the spraying angle of the first paint spraying mechanism (21) rotates toward the first opening (101), and the spraying angle of the second paint spraying mechanism (22) rotates toward the second opening (102); and the driving assembly (24) is used to drive the first paint spraying mechanism (21), the second paint spraying mechanism (22) and the multi-angle adjustment mechanism (23) to rotate.

2. A surface treatment process according to claim 1, characterized in that: The first paint spraying mechanism (21) further comprises a material guide sleeve (211) fixedly connected between the slide seats of the two electric slide rails (3), a material feed pipe being fixedly connected to the material guide sleeve (211), a material storage groove being arranged on the inner wall of the material guide sleeve (211) in a circumferential direction, a material storage ring tube (212) being sealingly and rotatably connected in the material storage groove, the material storage ring tube (212) being communicated with the material storage groove, a plurality of paint spraying heads (213) being arranged at equal intervals along the circumferential direction of the inner wall of the material storage ring tube (212), the paint spraying heads (213) being rotatably connected and communicated with the material storage ring tube (212), a reset assembly (214) being installed on the material storage ring tube (212) at the paint spraying heads (213), and the second paint spraying mechanism (22) has the same structure as the first paint spraying mechanism (21).

3. A surface treatment process according to claim 2, characterized in that: The multi-angle adjustment mechanism (23) comprises a fixed ring (231), a rotating ring (232) arranged inside the fixed ring (231), and an adjustment sleeve (234) rotatably connected to the inside of the rotating ring (232); the fixed ring (231) is fixedly connected between the slide seats of the two electric slide rails (3); a plurality of connecting plates (233) are fixedly connected at equal intervals along the circumferential direction between the inner wall of the fixed ring (231) and the outer wall of the rotating ring (232); two ends of the adjustment sleeve (234) are respectively arranged inside the material storage ring tube (212) of the first paint spraying mechanism (21) and the second paint spraying mechanism (22); and a plurality of pushing blocks (235) are evenly distributed along the circumferential direction at both ends of the adjustment sleeve (234).

4. A surface treatment process according to claim 3, characterized in that: The pushing block (235) and the adjusting sleeve (234) are integrally formed, and an inclined arc transition is formed between the two sides of the pushing block (235) and the adjusting sleeve (234), and the paint spraying heads (213) of the first paint spraying mechanism (21) and the second paint spraying mechanism (22) are in abutment with the ends of the adjusting sleeve (234).

5. A surface treatment process according to claim 3, characterized in that: The driving assembly (24) comprises a first gear ring (241), a second gear ring (242), a first motor (243), a driving shaft (244), a first gear (245) and a second gear (246); the first gear ring (241) is provided with two gears respectively fixedly connected to opposite sides of the material storage ring tube (212) in the first paint spraying mechanism (21) and the second paint spraying mechanism (22); the second gear ring (242) is fixedly sleeved on the second gear ring (242) outside the adjustment sleeve (234); the first motor (243) is installed on a slide seat of one of the electric slide rails (3); one end of the driving shaft (244) is fixedly connected to the output end of the first motor (243); the first gear (245) and the second gear (246) are fixedly connected to the driving shaft (244); the first gear (245) is meshed with one of the first gear rings (241); and the second gear (246) is meshed with the second gear ring (242).

6. A surface treatment process according to claim 5, characterized in that: The driving assembly (24) further comprises a rotating shaft (247), wherein the rotating shaft (247) is mounted on a slide seat of another electric slide rail (3) via a bearing seat, and both ends of the rotating shaft (247) are fixedly connected with third gears (248), and the two third gears (248) are respectively meshed with the first gear rings (241) of the first paint spraying mechanism (21) and the second paint spraying mechanism (22).

7. A surface treatment process according to claim 2, characterized in that: The reset assembly (214) comprises a fixed plate (2141) fixedly connected to a side of the material storage ring tube (212) away from the multi-angle adjustment mechanism (23); a through hole is formed on the fixed plate (2141); a moving rod (2142) is movably connected in the through hole; a mounting groove is formed at one end of the moving rod (2142) close to the paint spray head (213); a roller (2143) is rotatably connected in the mounting groove; a limit block (2144) is fixedly sleeved on the outer side of the moving rod (2142); a reset spring (2145) is sleeved between the limit block (2144) and the fixed plate (2141) and located on the outer side of the moving rod (2142).

8. A surface treatment process according to claim 7, characterized in that: A guide groove is provided in an annular shape on the outer circumferential wall of the roller (2143), and the guide groove is matched with the shape of the paint spray head (213). The roller (2143) abuts against the outer wall of the paint spray head (213).

9. A surface treatment process according to claim 1, characterized in that: The feeding and discharging unit (4) comprises a frame (41) fixedly connected to the outer wall of the paint spray barrel (1), a screw rod (43) is rotatably connected inside the frame (41), a second motor (42) is installed on one side of the frame (41), an output end of the second motor (42) is fixedly connected to one end of the screw rod (43), a movable seat (44) is threadedly connected to the outer side of the screw rod (43), and a first connecting rod (45) and a second connecting rod (47) are fixedly connected to the outer wall of the movable seat (44), respectively, and the first connecting rod (45) is away from the movable seat (44). One end of the movable seat (44) is fixedly connected to a first sealing plate (46), and the first sealing plate (46) is used to close the first opening (101). The second connecting rod (47) extends to the interior of the paint spray tube (1) from one end away from the movable seat (44) and is fixedly connected to a second sealing plate (48), and the second sealing plate (48) closes the second opening (102). The first sealing plate (46) and the second sealing plate (48) are both installed with storage rack clamps on opposite sides, and the diameter of the first opening (101) is greater than the diameter of the second opening (102).

10. A surface treatment process according to claim 1, characterized in that: The bottom of the paint spraying tube (1) is fixedly connected to a collecting box, and the bottom of the interior of the paint spraying tube (1) is provided with a discharge trough (103) which is in communication with the collecting box.

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