Surface pretreatment equipment for processing finned radiator of transformer

Abstract

The surface pretreatment equipment comprises a base, a discharging device is arranged on one side of the upper side of the base, an electric sliding rail is arranged on the front side of the upper side of the base, a moving seat is slidably connected to the upper side of the electric sliding rail, and a material moving device is arranged on the upper side of the moving seat; the finned radiator cleaning device relates to the technical field of finned radiator cleaning, and has the beneficial effects that a liftable cleaning structure is adopted, a conical first spray head and a V-shaped second spray head can be matched, efficient flushing operation can be conducted on the surface of a cooling fin, the cleaning efficiency is improved, and the cleaning efficiency is improved. And meanwhile, the cleaning effect of the grooves in the surfaces of the cooling fins can be improved through the second nozzles, and the situation that dirt remains due to the fact that the grooves in the surfaces of the cooling fins are inconvenient to clean is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning of chip radiators, and specifically to a surface pretreatment device for processing chip radiators of transformers. Background Art

[0002] The chip radiator of a transformer is a key component in the transformer cooling system, and its performance directly affects the operating efficiency and lifespan of the transformer. During the production process of the chip radiator of a transformer, processing steps such as cutting and stamping are usually required for the radiator fins. At this time, impurities such as dust and oil stains will adhere to the surface of the radiator fins of the chip radiator, reducing the surface cleanliness of the radiator fins. Therefore, it is necessary to perform a pretreatment cleaning operation on the surface of the radiator fins of the chip radiator to remove dust, oil stains, impurities, etc. on the surface of the radiator fins, and prevent surface dirt from affecting the adhesion of the coating subsequently sprayed on the surface of the radiator fins. In the processing of chip radiators of transformers, the quality control of the pretreatment of the radiator fins of the chip radiator is of crucial importance, which is directly related to the overall performance and heat dissipation effect of the subsequent radiator fins. The related prior arts are as follows:

[0003] 1. CN220398137U, a cleaning and drying device for producing radiator fins, includes a cleaning tank and a drying tank. The cleaning tank is connected to the drying tank. On the front and rear wall surfaces inside the cleaning tank, conveying components are respectively provided, and the conveying components are used to convey the radiator fins. On the upper and lower wall surfaces inside the cleaning tank, cleaning components are respectively provided. A drainage pipe is fixedly installed on the rear wall surface of the cleaning tank. At both ports of the drying tank, a pair of rotating rollers are respectively installed, and a water-absorbing sponge is fixedly installed on the rotating rollers, thereby solving the technical problem of reducing the working efficiency of cleaning the radiator fins. This solution enables the radiator fins to enter the cleaning tank one by one continuously and uninterruptedly through the conveying device, and under the action of the cleaning components, the upper and lower surfaces of the radiator fins are cleaned at one time, improving the working efficiency of cleaning the radiator fins;

[0004] 2. CN213670843U, an oil stain cleaning device for aluminum alloy radiator fins, includes a frame, an oil stain cleaning device, a workpiece conveying device, and a blowing device. The oil stain cleaning device and the blowing device are arranged side by side on the frame. The oil stain cleaning device includes a cleaning tank, an ultrasonic generator, and a transducer. The cleaning tank is arranged on the frame. This technical solution sends the radiator fins into the cleaning tank, and the conveyor belt drags the radiator fins to move, making full contact with the cleaning liquid in the cleaning tank, and the cleaning liquid impacts the oil stains on the surface of the radiator fins, greatly enhancing the cleaning effect;

[0005] In the above prior art, the cleaning method of the heat sink is immersion cleaning or using a large amount of water in combination with a brush. However, due to the complex internal cavity structure of the fin of the finned radiator, there are many small channels and corners. When performing the above cleaning operation, it is easy for the sewage with oil stains and impurities to enter the inside of the fin, mix with the oil stains in the inner cavity, form dirt that is difficult to remove, and further affect the overall performance and operation effect of the subsequent fin. In view of this, in-depth research on the above problems has led to the generation of this case. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a surface pretreatment device for processing a transformer finned radiator, which solves the problem that in the prior art, during the surface cleaning process of the fin of the finned radiator, sewage will enter the inside of the fin, mix with the oil stains in the inner cavity, form dirt that is difficult to remove, and further affect the overall performance and operation effect of the subsequent fin.

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A surface pretreatment device for processing a transformer finned radiator includes a base. On one side of the upper side of the base, a feeding device is provided. On the front side of the upper side of the base, an electric slide rail is provided. A moving seat is slidably connected to the upper side of the electric slide rail. A material transferring device is provided on the upper side of the moving seat. On one side of the feeding device, a cleaning frame is provided. On both sides of the front side of the cleaning frame, lead screws are provided. The upper sides of the lead screws on both sides of the cleaning frame are connected by a synchronous pulley and synchronous belt. The upper side of one of the lead screws on the side of the cleaning frame is connected to a driving member. A cleaning structure is provided on the front side of the cleaning frame;

[0008] The cleaning structure includes a lifting seat, and the rear sides of the lifting seats are slidably connected to the lead screws. A row of fixed pipes is evenly arranged on the front side of the cleaning frame. Openings are evenly arranged on both sides of the fixed pipes. On both sides of the inside of the fixed pipes, rotating shafts are rotatably connected. Rotating rods corresponding to the openings are evenly arranged on the rotating shafts. One side of the rotating rod penetrates through the opening and extends out from the inside of the fixed pipe. First nozzles and second nozzles are respectively arranged on the side of the rotating rod extending out of the fixed pipe. A metal block is embedded in the middle part of the rotating rod. Magnetic attraction blocks that can attract the metal block are arranged on both the upper and lower sides of the fixed pipe. Feeding pipes are arranged on both the upper and lower sides of the fixed pipe. A pair of mounting plates are provided on the cleaning frame. Limiting push plates are oppositely arranged on the pair of mounting plates;

[0009] A transfer chamber is arranged at the connection between the second nozzle and the rotating rod. Horizontal partition plates are arranged inside the first nozzle, the second nozzle, and the transfer chamber. The feeding pipes are respectively communicated with the first nozzle and the transfer chamber through connecting hoses. A sewage tank is installed on the lower side of the cleaning frame.

[0010] Preferably, the feeding device includes a feed bin arranged on the upper side of the base. The upper side of the feed bin is evenly provided with feeding ports, and the front side of the feed bin is evenly provided with discharge ports corresponding to the feeding ports;

[0011] Inside the feed bin, baffles are evenly arranged. A buffer roller is rotatably connected to the inner side of the baffle. A limiting buffer column is horizontally arranged on the lower side inside the feed bin. Fixed pieces are installed on both sides of the discharge port, and cleaning brushes are arranged on the fixed pieces.

[0012] Preferably, the material transfer device includes a column installed on the upper side of the moving seat. A hydraulic push rod is arranged on the upper side of the column. The output end of the hydraulic push rod penetrates through the column and is connected to a moving frame. A row of support frames are evenly installed on the front side of the moving frame, and a lifting structure is arranged on the lower side of the support frame;

[0013] The lifting structure includes a lifting gear ring. The lifting gear ring is rotatably connected to the upper side of the support frame through a bearing. A lifting screw rod is arranged in the middle of the lifting gear ring. The lower side of the lifting screw rod penetrates through the support frame and is connected to a lifting block. An internal thread matching the lifting screw rod is arranged on the inner ring of the lifting gear ring. A lifting motor is installed on one side of the lower side of the support frame. The driving end of the lifting motor penetrates through the support frame and is connected to a driving gear, and the driving gear meshes with the lifting gear ring;

[0014] A limiting frame is sleeved on the lower side of the lifting screw rod. Bending parts are arranged on both sides of the limiting frame. The upper sides of the bending parts are connected to the lower side of the support frame through spring rods. A telescopic airbag is arranged on the lower side of the lifting block. Rotating pieces are arranged on both sides of the lower side of the lifting block. An air inflation pump is arranged on one side of the upper side of the limiting frame. The exhaust port of the air inflation pump is communicated with the telescopic airbag through a connecting hose.

[0015] Preferably, an elastic limiting block is arranged on the lower side of the bending part, and an arc-shaped groove is arranged on the lower side of the elastic limiting block.

[0016] Preferably, the first spray head is integrally conical, and the second spray head is integrally V-shaped.

[0017] Preferably, the number of the feeding ports and the discharge ports is at least four. The number of the support frames matches the number of the feeding ports and the discharge ports. The number of the fixed pipes is at least five. The number of the limiting push plates is twice the number of the support frames.

[0018] Preferably, a dust collecting hopper is installed on the lower side of the front side of the feed bin. A collecting groove is arranged on one side of the lower side of the cleaning frame, and an inclined liquid guiding block is arranged inside the collecting groove.

[0019] Preferably, a guide rod parallel to the hydraulic push rod is inserted into the upper side of the column. One side of the guide rod is connected to the rear side of the moving frame. A guide groove is provided on the upper side of the column, and a guide piece slidably connected to the guide groove is installed on the rear side of the moving frame.

[0020] Preferably, T-shaped auxiliary grooves are formed on both sides of the front side of the cleaning frame, and both sides of the rear side of the lifting seat are slidably connected to the T-shaped auxiliary grooves.

[0021] Preferably, U-shaped placement frames are uniformly installed on the upper side of the sewage tank.

[0022] The present invention provides a surface pretreatment device for processing transformer sheet radiators, which has the following beneficial effects:

[0023] 1. By arranging a feeding device on the upper side of the base and cooperating with a material transfer component, the heat dissipation fins can be moved. During the movement, a simple pre-cleaning operation can be performed on the surface of the heat dissipation fins, and the upper opening of the heat dissipation fins can be fixedly sealed by a telescopic airbag, so as to prevent the sewage for cleaning the surface of the heat dissipation fins from entering the interior of the heat dissipation fins and affecting the subsequent use of the heat dissipation fins;

[0024] 2. An elevating cleaning structure is adopted. Through the cooperation of a conical first spray head and a V-shaped second spray head, an efficient flushing operation can be performed on the surface of the heat dissipation fins. At the same time, the second spray head can enhance the cleaning effect of the grooves on the surface of the heat dissipation fins, preventing the situation of residual dirt due to the inconvenience of cleaning the grooves on the surface of the heat dissipation fins;

[0025] 3. By arranging fixed limiting push plates on both the upper and lower sides of the cleaning frame, when the first spray head and the second spray head are pushed to the assembly plate, an angle conversion can be performed, so that the movement angles of the first spray head and the second spray head with respect to the heat dissipation fins are always less than 90 degrees, facilitating the formation of an asymmetric impact flushing, covering more areas of the workpiece surface, reducing the cleaning blind areas caused by occlusion or dead angles during vertical spraying, and increasing the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the first three-dimensional structure schematic diagram of the present invention.

[0027] Figure 2 It is the second three-dimensional structure schematic diagram of the present invention.

[0028] Figure 3 It is the sectional three-dimensional structure schematic diagram of the feeding device of the present invention.

[0029] Figure 4 It is the three-dimensional structure schematic diagram of the feeding device of the present invention.

[0030] Figure 5 It is the three-dimensional structure schematic diagram of the material transfer device of the present invention.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting structure of the present invention.

[0032] Figure 7 It is a schematic diagram of the main structure of the lifting structure of the present invention.

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the cleaning structure of the present invention.

[0034] Figure 9 It is a schematic diagram of the three-dimensional structure of the cleaning rack of the present invention.

[0035] Figure 10 For the present invention Figure 8 Enlarged view of point A in the middle.

[0036] Figure 11 It is a schematic diagram of the cross-sectional structure of the fixed pipe of the present invention.

[0037] Figure 12 It is a schematic diagram of the front structure of the cleaning rack of the present invention.

[0038] In the figure: 1, base, 2, electric slide rail, 3, moving seat, 4, cleaning rack, 5, screw, 6, driving part, 7, lifting seat, 8, fixed pipe, 9, opening, 10, rotating shaft, 11, rotating rod, 12, first nozzle, 13, second nozzle, 14, metal block, 15, magnetic block, 16, feeding pipe, 17, assembly plate, 18, limit push plate, 19, transfer bin, 20, partition, 21, connecting hose, 22, sewage tank, 23, material box, 24, feeding port, 25, discharge port, 26, baffle, 27, buffer roller, 28 , limit buffer column, 29, fixed plate, 30, cleaning brush, 31, column, 32, hydraulic push rod, 33, mobile frame, 34, support frame, 35, lifting gear ring, 36, lifting screw, 37, lifting block, 38, lifting motor, 39, driving tooth, 40, limit frame, 41, bending part, 42, spring rod, 43, telescopic airbag, 44, rotating plate, 45, air pump, 46, connecting hose, 47, elastic limit block, 48, ash hopper, 49, collecting trough, 50, guide rod, 51, guide plate, 52, U-shaped placement frame. DETAILED DESCRIPTION

[0039] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings. Figures 1-12 As shown, a surface pretreatment device for processing a transformer plate heat sink.

[0041] Persons skilled in the art shall connect all the electrical components in this case to their adapted power sources through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the working principle below, and the electrical connection should be completed according to the sequential working order among the electrical components. The detailed connection means are well-known techniques in this field. The following mainly introduces the working principle and process, and no further description of electrical control will be given.

[0042] A surface pretreatment device for processing transformer sheet radiators includes a base 1. On one side of the upper side of the base 1, a feeding device is arranged. On the front side of the upper side of the base 1, an electric slide rail 2 is arranged. A moving seat 3 is slidably connected to the upper side of the electric slide rail 2. A material transfer device is arranged on the upper side of the moving seat 3. On one side of the feeding device, a cleaning rack 4 is arranged. On both sides of the front side of the cleaning rack 4, lead screws 5 are arranged. The upper sides of the lead screws 5 on both sides of the cleaning rack 4 are connected through a synchronous pulley and synchronous belt. The upper side of one of the lead screws 5 on one side of the cleaning rack 4 is connected to a driving member 6. A cleaning structure is arranged on the front side of the cleaning rack 4;

[0043] The cleaning structure includes a lifting seat 7. The rear sides of the lifting seats 7 are slidably connected to the lead screws 5. A row of fixed pipes 8 are evenly arranged on the front side of the cleaning rack 4. Openings 9 are evenly arranged on both sides of the fixed pipes 8. On both sides inside the fixed pipes 8, rotating shafts 10 are rotatably connected. On the rotating shafts 10, rotating rods 11 corresponding to the openings 9 are evenly arranged. One side of the rotating rod 11 penetrates through the opening 9 and extends out from the inside of the fixed pipe 8. On the side where the rotating rod 11 extends out of the fixed pipe 8, a first spray head 12 and a second spray head 13 are respectively arranged. A metal block 14 is embedded in the middle part of the rotating rod 11. Magnetic attraction blocks 15 that can attract the metal block 14 are arranged on both the upper and lower sides of the fixed pipe 8. Feeding pipes 16 are arranged on both the upper and lower sides of the fixed pipe 8. On the cleaning rack 4, a pair of assembly plates 17 are arranged. On the pair of assembly plates 17, limiting push plates 18 are oppositely arranged;

[0044] A transfer bin 19 is arranged at the connection between the second spray head 13 and the rotating rod 11. Horizontal partition plates 20 are arranged inside the first spray head 12, the second spray head 13, and the transfer bin 19. The feeding pipes 16 are respectively connected to the first spray head 12 and the transfer bin 19 through connecting hoses 21. A sewage tank 22 is installed on the lower side of the cleaning rack 4;

[0045] The feeding device includes a material box 23 arranged on the upper side of the base 1. Feeding ports 24 are evenly opened on the upper side of the material box 23. Discharge ports 25 corresponding to the feeding ports 24 are evenly opened on the front side of the material box 23;

[0046] Baffles 26 are evenly arranged inside the material box 23. Buffer rollers 27 are rotatably connected to the inner sides of the baffles 26. A limiting buffer column 28 is horizontally arranged on the lower side inside the material box 23. Fixed pieces 29 are installed on both sides of the discharge port 25. Cleaning brushes 30 are arranged on the fixed pieces 29;

[0047] The material transfer device includes a column 31 installed on the upper side of the moving base 3. A hydraulic push rod 32 is arranged on the upper side of the column 31. The output end of the hydraulic push rod 32 penetrates through the column 31 and is connected to a moving frame 33. A row of support frames 34 are evenly installed on the front side of the moving frame 33. A lifting structure is arranged on the lower side of the support frame 34;

[0048] The lifting structure includes a lifting gear ring 35. The lifting gear ring 35 is rotatably connected to the upper side of the support frame 34 through a bearing. A lifting screw rod 36 is arranged in the middle part of the lifting gear ring 35. The lower side of the lifting screw rod 36 penetrates through the support frame 34 and is connected to a lifting block 37. An internal thread matching the lifting screw rod 36 is arranged on the inner ring of the lifting gear ring 35. A lifting motor 38 is installed on one side of the lower side of the support frame 34. The driving end of the lifting motor 38 penetrates through the support frame 34 and is connected to a driving gear 39. The driving gear 39 meshes with the lifting gear ring 35;

[0049] A limiting frame 40 is sleeved on the lower side of the lifting screw rod 36. Bent portions 41 are arranged on both sides of the limiting frame 40. The upper sides of the bent portions 41 are connected to the lower side of the support frame 34 through spring rods 42. An expansion air bag 43 is arranged on the lower side of the lifting block 37. Rotating pieces 44 are arranged on both sides of the lower side of the lifting block 37. An air inflation pump 45 is arranged on one side of the upper side of the limiting frame 40. The exhaust port of the air inflation pump 45 is communicated with the expansion air bag 43 through a connecting hose 46;

[0050] It should be noted that a feeding device, a material transfer device, an electric slide rail 2, a cleaning rack 4, and multiple components arranged in front of the cleaning rack 4 are symmetrically arranged on the upper side of the base 1. The above-mentioned symmetrically arranged components can cooperate to alternately perform the operations of feeding, material transfer, and surface cleaning pretreatment of the fins of the transformer sheet radiator. The symmetric design can improve the overall operating efficiency of the device, ensure the continuity of the pretreatment process, and improve the efficiency and effect of the subsequent processing of the transformer sheet radiator;

[0051] It should be noted that after the fins have undergone processing steps such as cutting and stamping, impurities such as dust and oil stains will adhere to the surface. At this time, the fins can be put into the interior of the material box 23 through the feeding port 24. The interior of the material box 23 is divided into multiple spaces by a baffle 26. Buffer rollers 27 are arranged on both sides of the baffle 26, which can slow down the falling speed of the fins and prevent the fins from colliding with the baffle 26 and being damaged. Subsequently, the limiting buffer column 28 located on the lower side inside the material box 23 can limit and fix the vertical position of the fins. At the same time, the baffle 26, the buffer rollers 27, and the limiting buffer column 28 cooperate to keep the fins vertical;

[0052] Subsequently, the electric slide rail 2 cooperates with the moving seat 3 to drive the column 31 and multiple components located above the column 31 to move to the front side of the material box 23, and make multiple groups of support frames 34 on the front side of the moving frame 33 correspond to the discharge port 25 on the front side of the material box 23. Subsequently, the hydraulic push rod 32 operates to push the moving frame 33 to move, and drive the support frames 34 and multiple components located below the support frames 34 to extend into the material box 23 through the discharge port 25. The area of the discharge port 25 is large enough and will not cause movement interference with the lifting screw 36. At this time, each support frame 34 corresponds to a heat sink. Subsequently, the lifting motor 38 operates, and through the cooperation of the driving gear 39, the lifting gear ring 35, and the lifting screw 36, it can drive the lifting block 37 to descend vertically, and make the lifting block 37, the expansion airbag 43, and the rotating piece 44 insert into the heat sink through the upper opening 9 of the heat sink;

[0053] At this time, the air inflation pump 45 operates to ventilate the expansion airbag 43 through the connecting hose 46, and make the whole expansion airbag 43 expand, and can push the rotating piece 44 to rotate, so that the rotating piece 44 closely adheres to the inner wall on the upper side of the heat sink. At the same time, the expansion airbag 43 can block the upper opening 9 of the heat sink. The whole expansion airbag 43 is made of rubber material, and the expansion volume generated by the expansion airbag 43 can be controlled by controlling the air supply volume of the air inflation pump 45. Therefore, the situation that the expansion airbag 43 expands too much and causes the heat sink to deform will not occur. The rotating piece 44 is used to increase the bearing capacity of the heat sink in the vertical direction. At this time, the lifting motor 38 operates again, and can drive the heat sink blocked on the upper side to rise through the expanded expansion airbag 43, and make the shoulder of the heat sink closely adhere to the bent parts 41 on both sides of the limit frame 40, and at the same time squeeze the spring rod 42. The vertically downward reaction force generated by the spring rod 42 can increase the overall fixed clamping effect of the heat sink and prevent the heat sink from loosening. The elastic limit block 47 located below the bent part 41 can buffer and protect the shoulder of the heat sink. At the same time, the rising of the lifting screw 36 can separate the lower side of the heat sink from the limit buffer column 28 to prevent the limit buffer column 28 from causing movement interference with the heat sink. An arc-shaped groove is arranged on the lower side of the elastic limit block 47, and in cooperation with the expanded expansion airbag 43, it can increase the fixed effect of the heat sink in the vertical direction and further improve the fixing quality;

[0054] After the fixing is completed, the hydraulic push rod 32 contracts to take out the heat sink located inside the material box 23. During the taking-out process, the surface of the heat sink will contact the cleaning brush 30. At this time, part of the dust and impurities can be removed, which is convenient for increasing the subsequent cleaning effect. At the same time, the dust can fall into the dust collection hopper 48 located at the lower front side of the material box 23 for collection;

[0055] A guide rod 50 parallel to the hydraulic push rod 32 is inserted into the upper side of the column 31. One side of the guide rod 50 is connected to the rear side of the moving frame 33. A guide groove is provided on the upper side of the column 31, and a guide piece 51 slidably connected to the guide groove is installed on the rear side of the moving frame 33, which can increase the stability of the heat sink during movement;

[0056] Subsequently, the electric slide rail 2 drives the heat sink to move to the front side of the cleaning frame 4 and pushes the heat sink out again, so that the heat sink is inserted between multiple fixed tubes 8. Upper feeding tubes 16 are provided on both the upper and lower sides of the fixed tube 8, and the two upper feeding tubes 16 are respectively connected to a cleaning agent pumping system and a clear water pumping system. This part is prior art and will not be elaborated further. Since partitions 20 are provided in the middle parts of the first spray head 12, the second spray head 13, and the transfer bin 19, the interiors of the first spray head 12, the second spray head 13, and the transfer bin 19 can be divided into two independent cavities. The two upper feeding tubes 16 respectively connected to the cleaning agent pumping system and the clear water pumping system can introduce the cleaning agent or clear water into the inner cavities of the first spray head 12 and the transfer bin 19 through the connecting hoses 21. Thus, the two independent cavities inside the first spray head 12 and the second spray head 13 can spray the cleaning agent and the clear water respectively, thereby enhancing the cleaning effect of the heat sink;

[0057] When a pretreatment operation for surface cleaning of the heat sink is required, the driving member 6 operates. Through the cooperation of the synchronous pulley and the synchronous belt, the lead screws 5 on both sides of the front side of the cleaning frame 4 can be driven simultaneously, and the lifting seat 7 is used to drive multiple fixed tubes 8 and the components on both sides of the fixed tubes 8 to perform reciprocating motion in the vertical direction. During the movement, it is possible to select whether to spray the cleaning agent, clear water, or both simultaneously according to the usage requirements. At the same time, after the fixed tube 8 moves to the lower side of the assembly frame in front of the cleaning frame, the limit push rod can push the first spray head 12 and the second spray head 13 at the rearmost side of the fixed tube 8 to descend. Since multiple first spray heads 12 and second spray heads 13 are all connected to the rotating shaft 10 through the rotating rod 11, when the fixed tube 8 rises to the highest position, it will cooperate with the limit push plate 18 to push multiple first spray heads 12 and second spray heads 13 to descend, and the metal block 14 embedded in the middle part of the rotating rod 11 will attract the magnetic block 15 on the lower side inside the fixed tube 8, which can fix the angles of the first spray head 12 and the second spray head 13. Subsequently, the driving member 6 cooperates with the lead screw 5 to drive multiple first spray heads 12 and second spray heads 13 to descend. The attraction between the magnetic block 15 and the metal block 14 is large enough. When the force of the lead screw 5 is greater than the magnetic attraction force, the angles of the first spray head 12 and the second spray head 13 can be changed;

[0058] At this time, the water mist ejected by the first nozzle 12 and the second nozzle 13 forms an asymmetric impact, which can cover a larger area of the workpiece surface, reduce the cleaning blind area caused by occlusion or dead angles during spraying, increase the cleaning effect. At the same time, the position of the second nozzle 13 corresponds to the groove position on the surface of the heat sink, and the ejected water mist can impact at the dead angle of the groove, thereby increasing the flushing effect and preventing the situation where the inside of the groove is in a dead angle and cannot be cleaned. When the fixed pipe 8 moves to the assembly plate 17 at the lower front side of the cleaning rack 4, the limit push plate 18 pushes the first nozzle 12 and the second nozzle 13 again, making the first nozzle 12 and the second nozzle 13 tilt upward. At the same time, the lifting seat 7 performs reciprocating motion in the vertical direction to increase the flushing effect. The number of the feeding ports 24 and the discharging ports 25 is at least four. The number of the support frames 34 matches the number of the feeding ports 24 and the discharging ports 25. The number of the fixed pipes 8 is at least five. The number of the limit push plates 18 is twice the number of the support frames 34. Both the first nozzle 12 and the second nozzle 13 will flush both sides of the heat sink and form a symmetric impact force. Therefore, the heat sink will not be unstable during the flushing process. The first nozzle 12 is integrally conical, and the second nozzle 13 is integrally V-shaped. The conical first nozzle 12 can make the ejected liquid droplets distribute more evenly, increasing the cleaning effect. The V-shaped second nozzle 13 can increase the flushing effect inside the grooves of the heat sink and prevent the situation where the inside of the groove is in a dead angle and cannot be cleaned;

[0059] At the same time, since the upper opening 9 of the heat sink is blocked by the telescopic airbag 43, the cleaning sewage will not enter the inside of the heat sink, causing pollution inside the heat sink. At the same time, affected by gravity, the cleaning sewage will enter the sewage tank 22 and will not enter the inside of the heat sink from the lower opening 9 of the heat sink;

[0060] After the flushing operation is completed, the electric slide rail 2 can drive the heat sink after flushing pretreatment to move above the collection tank 49, and subsequent drying and blowing operations can be carried out. An inclined liquid guide groove is arranged inside the collection tank 49 to facilitate the discharge of the collected sewage.

[0061] T-shaped auxiliary grooves are provided on both sides of the front side of the cleaning rack 4. The rear sides of both sides of the lifting seat 7 are slidably connected to the T-shaped auxiliary grooves to increase the stability of the lifting seat 7 during the lifting process. U-shaped placement frames 52 are evenly installed on the upper side of the sewage tank 22. After the operation of the device is completed, the fixed pipe 8 can be placed on the U-shaped placement frames 52.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface pretreatment device for processing a transformer sheet radiator, including a base (1), characterized in that, On one side of the upper side of the base (1), a feeding device is provided. On the front side of the upper side of the base (1), an electric slide rail (2) is provided. A moving seat (3) is slidably connected to the upper side of the electric slide rail (2). A material transferring device is provided on the upper side of the moving seat (3). A cleaning frame (4) is provided on one side of the feeding device. On both sides of the front side of the cleaning frame (4), lead screws (5) are provided. The upper sides of the lead screws (5) on both sides of the cleaning frame (4) are connected by a synchronous pulley and synchronous belt. The upper side of one of the lead screws (5) on one side of the cleaning frame (4) is connected to a driving member (6). A cleaning structure is provided on the front side of the cleaning frame (4). The cleaning structure includes a lifting seat (7). The rear sides of the lifting seats (7) are slidably connected to the lead screws (5). A row of fixed pipes (8) are evenly provided on the front side of the cleaning frame (4). Openings (9) are evenly provided on both sides of the fixed pipes (8). Rotating shafts (10) are rotatably connected to both sides inside the fixed pipes (8). Rotating rods (11) corresponding to the openings (9) are evenly provided on the rotating shafts (10). One side of the rotating rod (11) penetrates through the opening (9) and extends out of the fixed pipe (8). A first spray head (12) and a second spray head (13) are respectively provided on the side of the rotating rod (11) extending out of the fixed pipe (8). A metal block (14) is embedded in the middle part of the rotating rod (11). Magnetic attraction blocks (15) capable of attracting the metal block (14) are provided on both the upper and lower sides of the fixed pipe (8). Feeding pipes (16) are provided on both the upper and lower sides of the fixed pipe (8). A pair of mounting plates (17) are provided on the cleaning frame (4). Limiting push plates (18) are oppositely provided on the pair of mounting plates (17). A transfer bin (19) is provided at the connection between the second spray head (13) and the rotating rod (11). Horizontal partitions (20) are provided inside the first spray head (12), the second spray head (13), and the transfer bin (19). The feeding pipes (16) are respectively communicated with the first spray head (12) and the transfer bin (19) through connecting hoses (21). A sewage tank (22) is installed on the lower side of the cleaning frame (4).

2. The surface pretreatment device for processing transformer sheet radiators according to claim 1, wherein, The feeding device includes a material box (23) provided on the upper side of the base (1). Feeding ports (24) are evenly opened on the upper side of the material box (23). Discharge ports (25) corresponding to the feeding ports (24) are evenly opened on the front side of the material box (23). Baffles (26) are evenly provided inside the material box (23). Buffer rollers (27) are rotatably connected to the inner sides of the baffles (26). A limiting buffer column (28) is horizontally provided on the lower side inside the material box (23). Fixed pieces (29) are installed on both sides of the discharge port (25). Cleaning brushes (30) are provided on the fixed pieces (29).

3. The surface pretreatment equipment for processing a transformer sheet radiator according to claim 2, characterized in that, The material transfer device includes a column (31) installed on the upper side of the moving seat (3). A hydraulic push rod (32) is arranged on the upper side of the column (31). The output end of the hydraulic push rod (32) penetrates through the column (31) and is connected to a moving frame (33). A row of support frames (34) are evenly installed on the front side of the moving frame (33). A lifting structure is arranged on the lower side of the support frame (34). The lifting structure includes a lifting gear ring (35). The lifting gear ring (35) is rotatably connected to the upper side of the support frame (34) through a bearing. A lifting screw rod (36) is arranged in the middle part of the lifting gear ring (35). The lower side of the lifting screw rod (36) penetrates through the support frame (34) and is connected to a lifting block (37). An internal thread matching the lifting screw rod (36) is arranged on the inner ring of the lifting gear ring (35). A lifting motor (38) is installed on one side of the lower side of the support frame (34). The driving end of the lifting motor (38) penetrates through the support frame (34) and is connected to a driving gear (39). The driving gear (39) meshes with the lifting gear ring (35). A limiting frame (40) is sleeved on the lower side of the lifting screw rod (36). Bent parts (41) are arranged on both sides of the limiting frame (40). The upper sides of the bent parts (41) are connected to the lower side of the support frame (34) through spring rods (42). An expansion air bag (43) is arranged on the lower side of the lifting block (37). Rotating pieces (44) are arranged on both sides of the lower side of the lifting block (37). An air inflation pump (45) is arranged on one side of the upper side of the limiting frame (40). The exhaust port of the air inflation pump (45) is communicated with the expansion air bag (43) through a connecting hose (46).

4. The surface pretreatment equipment for processing transformer sheet radiators according to claim 3, characterized in that, An elastic limiting block (47) is arranged on the lower side of the bent part (41). An arc-shaped groove is arranged on the lower side of the elastic limiting block (47).

5. The surface pretreatment device for processing transformer sheet radiators according to claim 4, characterized in that, The first nozzle (12) is integrally conical, and the second nozzle (13) is integrally V-shaped.

6. The surface pretreatment equipment for processing a transformer sheet radiator according to claim 5, characterized in that, The number of the feeding ports (24) and the discharging ports (25) is at least four. The number of the support frames (34) matches the number of the feeding ports (24) and the discharging ports (25). The number of the fixed pipes (8) is at least five. The number of the limiting push plates (18) is twice the number of the support frames (34).

7. The surface pretreatment equipment for processing transformer sheet radiators according to claim 6, characterized in that, A dust collecting hopper (48) is installed on the lower front side of the material box (23). A collecting groove (49) is arranged on one side of the lower side of the cleaning frame (4). An inclined liquid guiding block is arranged inside the collecting groove (49).

8. The surface pretreatment equipment for processing a transformer sheet radiator according to claim 7, characterized in that, A guiding rod (50) parallel to the hydraulic push rod (32) is inserted on the upper side of the column (31). One side of the guiding rod (50) is connected to the rear side of the moving frame (33). A guiding groove is arranged on the upper side of the column (31). A guiding piece (51) slidingly connected to the guiding groove is installed on the rear side of the moving frame (33).

9. The surface pretreatment equipment for processing transformer sheet radiators according to claim 8, characterized in that, T-shaped auxiliary grooves are formed on both sides of the front side of the cleaning frame (4). The rear sides of both sides of the lifting seat (7) are slidingly connected to the T-shaped auxiliary grooves.

10. The surface pretreatment equipment for processing transformer sheet radiators according to claim 9, characterized in that, U-shaped placing frames (52) are evenly installed on the upper side of the sewage tank (22).

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