Hydraulic forming production line for cooler fins

Abstract

The invention relates to the field of cooler fin production, in particular to a cooler fin hydraulic forming production line which comprises a punching machine and an air suction assembly, the two ends of the punching machine are provided with a feeding port and a discharging port correspondingly, the feeding port is used for allowing metal sheets to pass through, the punching machine is used for machining the metal sheets into fins, and the discharging port is used for allowing the fins to pass through. The air suction assembly comprises an air suction plate, the height of the air suction plate is larger than that of the discharging opening, and an air suction opening is formed in the lower end of the air suction plate and used for generating negative pressure to adsorb the fins. Metal sheets are fed from the feeding port, the punching machine punches the metal sheets into fins in the corresponding shapes, the fins are cut into the corresponding sizes, the punched fins move to the air suction assembly, the air suction assembly supports the fins, after the fins are completely separated from the punching machine, the air suction port is closed, and the fins achieve the automatic stacking function under the action of the gravity of the fins. And under the action of the air suction assembly, the deformation possibility of the fins in the discharging process is reduced, and the yield of the fins is increased.

Description

Technical Field

[0001] This application relates to the field of cooler fin production, and particularly to a hydraulic forming production line for cooler fins. Background Art

[0002] Cooler fins are key components for enhancing heat exchange efficiency and are widely used in fields such as air conditioners, automotive radiators, and electronic equipment cooling. Cooler fins are usually made of metal sheets, and the metal sheets are stamped into corresponding shapes and sizes through corresponding molds to form cooler fins.

[0003] Current stamping equipment mainly includes a conveying structure and a stamping structure. The conveying structure transports the metal sheet to the stamping structure, and the stamping structure stamps the metal sheet raw material to form cooler fins of corresponding shapes. The fins after stamping are then pushed by the next metal sheet to be processed to the blanking station, and the processed fins fall under their own gravity to achieve the function of automatic stacking.

[0004] However, due to the relatively long length of some fins, bending is likely to occur during the blanking process, resulting in a large number of defective products. Summary of the Invention

[0005] In order to improve the yield rate of fins, this application provides a hydraulic forming production line for cooler fins.

[0006] A hydraulic forming production line for cooler fins provided by this application adopts the following technical solutions: A hydraulic forming production line for cooler fins includes a stamping machine and a suction assembly. The two ends of the stamping machine are respectively provided with a loading port and a blanking port. The loading port is used for the metal sheet to pass through, the stamping machine is used to process the metal sheet into fins, the blanking port is used for the fins to pass through, the suction assembly includes a suction plate, the height of the suction plate is greater than the height of the blanking port, and a suction port is provided at the lower end of the suction plate. The suction port is used to generate negative pressure to adsorb the fins.

[0007] By adopting the above technical solutions, the metal sheet is loaded from the loading port, the stamping machine stamps the metal sheet into fins of corresponding shapes and cuts the fins into corresponding sizes. After stamping, the fins move to the suction assembly, and the suction assembly supports the fins. When the fins are completely separated from the stamping machine, the suction port is closed, and the fins achieve the function of automatic stacking under their own gravity. Under the action of the suction assembly, the possibility of deformation of the fins during the blanking process is reduced, and the yield rate of the fins is improved.

[0008] Preferably, the air suction assembly further includes an air bin, the air bin is provided with an air cavity, the lower end of the air bin is provided with an air inlet, the outer wall of the air bin is provided with an air outlet, both the air inlet and the air outlet communicate with the air cavity, the suction plate is fixedly connected to the inner wall of the air inlet, the air suction port communicates with the air cavity, there are a plurality of air suction ports, and the plurality of air suction ports are arranged in an array on the suction plate.

[0009] By adopting the above technical solution, the negative pressure of the air suction port is increased by using the Venturi effect, and the uniform distribution of a plurality of air suction ports can stably support the metal sheet, reduce the probability of the end of the metal sheet sagging due to gravity, and improve the yield rate of the fins.

[0010] Preferably, it further includes a blanking rack and a guide rod. The height of the blanking rack is less than the height of the blanking port. The blanking rack is used for stacking fins. The lower end of the guide rod is fixedly connected to the blanking rack, and the length direction of the guide rod is vertical.

[0011] By adopting the above technical solution, when the air suction port is closed, the fins fall under the influence of their own gravity. The guide rod passes through the holes on the fins, and the guide rod guides the fins, so that the fins are stacked neatly on the blanking rack.

[0012] Preferably, it further includes a connecting pipe. The upper end of the blanking rack is provided with a buffer port. One end of the connecting pipe communicates with the air outlet, and the other end of the connecting pipe communicates with the buffer port.

[0013] By adopting the above technical solution, the air outlet at the buffer port buffers the sliding of the fins, slows down the impact of the fins falling, and improves the yield rate of the fins.

[0014] Preferably, the air suction assembly further includes a limiting plate. The limiting plate is slidably connected to the lower end of the suction plate. The sliding direction of the limiting plate is parallel to the moving direction of the fins. The limiting plate is used for limiting the fins.

[0015] By adopting the above technical solution, the limiting plate limits the fins, so that the timing of stopping air suction is synchronized with the action of the fins separating from the stamping machine, preventing the fins from shifting in position, facilitating the guide rod to guide the falling fins, and making the fins stacked neatly.

[0016] Preferably, the air suction assembly further includes a covering plate. The covering plate is slidably connected to the upper end of the suction plate. The covering plate is used for covering the air suction port. The covering plate is provided with a plurality of through holes, and the plurality of through holes are evenly spaced along the moving direction of the fins.

[0017] By adopting the above technical solution, the sliding of the covering plate closes the air suction port, reduces the shortening of the service life of the equipment caused by the repeated start and stop of the air pump, and prolongs the service life of the equipment.

[0018] Preferably, the air suction assembly further includes a piston plate and a connecting rod. A piston port is provided on the outer wall of the air storage chamber. The piston plate is slidably connected to the inner wall of the piston port. One end of the connecting rod is fixedly connected to the piston plate, and the other end of the connecting rod is fixedly connected to the covering plate.

[0019] By adopting the above technical solution, when the covering plate completely covers the air suction port, since the air intake of the air storage chamber is not smooth, the air extraction pump works stably, the air pressure in the air storage chamber gradually decreases, and the internal and external air pressure difference of the piston plate overcomes the friction force of the piston plate to push the piston plate to slide. The covering plate moves to cover the air suction port, so that the fins automatically fall without being affected by negative pressure, which is convenient for stacking materials.

[0020] Preferably, the air suction assembly further includes a mounting plate and a return spring. The mounting plate is arranged between the piston plate and the covering plate. One end of the return spring is fixedly connected to the piston plate, and the other end of the return spring is fixedly connected to the mounting plate.

[0021] By adopting the above technical solution, the internal and external air pressure difference of the piston plate enables the piston plate to slide against the elastic force of the return spring, and the return spring facilitates the reset of the piston plate.

[0022] Preferably, the air suction assembly further includes a sliding plate. A gas supplement port is provided at one end of the air storage chamber away from the piston port. The sliding plate is slidably connected to the inner wall of the air storage chamber, and the sliding plate is used to cover the gas supplement port.

[0023] By adopting the above technical solution, when the covering plate covers the air suction port, the sliding plate slides to open the gas supplement port, supplement air to the air storage chamber, balance the air pressure, and promote the reset of the piston plate.

[0024] Preferably, the air suction assembly further includes a first rack, a third gear and a second rack. The first rack is fixedly connected to the upper end of the covering plate. The third gear is arranged above the first rack. The third gear is rotatably connected to the inner wall of the air storage chamber around its own axis. The rotation axis of the third gear is horizontal. The second rack is fixedly connected to one end of the sliding plate facing away from the gas supplement port. Both the first rack and the second rack are engaged with the third gear, and the sliding direction of the sliding plate is vertical.

[0025] By adopting the above technical solution, when the covering plate moves, it pushes the sliding plate to move. When the covering plate covers the air suction port, the metal sheet falls off. At this time, the gas supplement port is communicated to supplement air to the air storage chamber, promoting the increase of the air pressure in the air storage chamber to make the covering plate reset, and the air intake is unobstructed without the metal sheet blocking the air suction port, compensating the air pressure in the air storage chamber.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The metal sheet is loaded from the loading port, and the punching machine punches the metal sheet into fins of corresponding shapes and cuts the fins into corresponding sizes. After the punching is completed, the fins are moved to the suction component, and the suction component supports the fins. When the fins are completely separated from the punching machine, the suction port is closed, and the fins realize the automatic stacking function under the action of their own gravity. Under the action of the suction component, the possibility of deformation of the fins during the feeding process is reduced, and the yield rate of the fins is improved; 2. When the air inlet is closed, the fins fall down due to their own gravity, and the guide rods pass through the holes on the fins. The guide rods guide the fins so that the fins are neatly stacked on the unloading rack; 3. The cover plate moves while pushing the sliding plate to move. When the cover plate covers the air intake, the metal sheet falls off. At this time, the air supply port is connected to supply air to the wind bin, which promotes the increase of air pressure in the wind bin and resets the cover plate. There is no metal sheet blocking the air intake at the air intake port, which compensates for the air pressure in the wind bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a cooler fin hydraulic forming production line.

[0028] Figure 2 It is a cross-sectional view of a cooler fin hydroforming production line.

[0029] Figure 3 It is a schematic diagram of the overall structure of the blanking component and the suction component.

[0030] Figure 4 It is a schematic diagram of the internal structure of the air intake component after it is cut open.

[0031] Figure 5 It is a schematic diagram of the overall structure of the air intake component.

[0032] Description of reference numerals: 1. Stamping machine; 11. Loading port; 12. Unloading port; 2. Conveying assembly; 21. Loading member; 211. Loading rack; 212. Flattening box; 2121. Processing port; 213. Loading roller; 214. Guide roller; 215. Support roller; 216. Flattening roller; 217. First gear; 218. Second gear; 219. First driving motor; 22. Connecting frame; 23. Conveying member; 231. Conveying rack; 232. First conveying roller; 233. Second conveying roller; 234. Second driving motor; 235. Proximity switch; 2351. Distance sensor; 24. Feeding member; 241. Feeding rack; 242. Feeding roller; 3. Unloading assembly; 31. Sliding seat; 311. Guide rail; 32. Unloading rack; 321. Buffer port; 322. Vent port; 33. Guide rod; 34. Limiting rod; 35. Connecting pipe; 4. Suction assembly; 41. Air bin; 411. Air cavity; 412. Air inlet; 413. Air outlet; 413. Piston port; 4131. Positioning strip; 414. Air supplement port; 42. Suction plate; 421. Suction port; 422. Threaded groove; 43. Exhaust fan; 44. Filter screen; 45. Limiting member; 451. Limiting plate; 4511. Strip-shaped port; 452. Bolt; 46. Control member; 461. Cover plate; 4611. Through port; 462. Piston plate; 4621. Positioning groove; 463. Connecting rod; 464. Stop bar; 465. Mounting plate; 466. Return spring; 47. Air supplement member; 471. Sliding plate; 472. First rack; 473. Third gear; 474. Second rack. Detailed implementation manners

[0033] The following further elaborates on this application Figures 1-5 in conjunction with the attached drawings.

[0034] An embodiment of this application discloses a hydraulic forming production line for cooler fins. Referring to Figure 1 and Figure 2 , a hydraulic forming production line for cooler fins includes a stamping machine 1, a conveying assembly 2, an unloading assembly 3, and a suction assembly 4. The conveying assembly 2 and the unloading assembly 3 are respectively arranged on both sides of the stamping machine 1. One end of the stamping machine 1 facing the conveying assembly 2 is provided with a loading port 11, and one end of the stamping machine 1 facing the unloading assembly 3 is provided with an unloading port 12. The loading port 11 is used for the metal sheet to pass through, the stamping machine 1 is used to process the metal sheet into fins, and the unloading port 12 is used for the fins to pass through.

[0035] The conveying assembly 2 includes a loading member 21, a connecting frame 22, a conveying member 23 and a feeding member 24. The loading member 21 includes a loading rack 211, a leveling box 212, a loading roller 213, a guiding roller 214, a supporting roller 215, a flattening roller 216, a first gear 217, a second gear 218 and a first driving motor 219. The loading rack 211 is fixedly connected to the outer wall of the punching machine 1, the leveling box 212 is fixedly connected to the upper end of the loading rack 211, the loading roller 213 is arranged between the punching machine 1 and the leveling box 212, the loading roller 213 is rotatably connected to the loading rack 211 about its own axis, the rotation axis of the loading roller 213 is parallel to the length direction of the loading port 11, the guiding roller 214 is arranged on the side of the leveling box 212 away from the loading roller 213, the guiding roller 214 is rotatably connected to the loading rack 211 about its own axis, and the rotation axis of the guiding roller 214 is parallel to the axis of the loading roller 213.

[0036] Referring to Figure 2 , both ends of the leveling box 212 facing the loading roller 213 and the guiding roller 214 are provided with processing ports 2121, the processing ports 2121 penetrate through the leveling box 212, the supporting roller 215 and the flattening roller 216 are both rotatably connected to the inner wall of the processing port 2121 about their own axes, the flattening roller 216 is arranged above the supporting roller 215, the rotation axes of the supporting roller 215 and the flattening roller 216 are both parallel to the rotation axis of the loading roller 213, a plurality of supporting rollers 215 are provided, the plurality of supporting rollers 215 are evenly spaced along the length direction of the processing port 2121, a plurality of flattening rollers 216 are provided, the flattening rollers 216 are arranged in one-to-one correspondence with the supporting rollers 215, and the supporting roller 215 and the flattening roller 216 cooperate to flatten the metal sheet, prevent the metal sheet from being uneven, and improve the production quality of the fins.

[0037] Referring to Figure 1 and Figure 2 , both ends of the supporting roller 215 and the flattening roller 216 extend out of the leveling box 212, the first gear 217 is coaxially and fixedly connected to one end of the supporting roller 215, the second gear 218 is coaxially and fixedly connected to one end of the flattening roller 216, the first gear 217 and the second gear 218 are meshed, the motor housing of the first driving motor 219 is coaxially and fixedly connected to the outer wall of the leveling box 212, and the motor shaft of the first driving motor 219 is coaxially and fixedly connected to the flattening roller 216.

[0038] The conveying member 23 is arranged on the side of the loading member 21 away from the punching machine 1, the connecting frame 22 is arranged between the loading member 21 and the conveying member 23, the conveying member 23 includes a conveying rack 231, a first conveying roller 232, a second conveying roller 233, a second driving motor 234 and a proximity switch 235, both ends of the connecting frame 22 are respectively fixedly connected to the loading rack 211 and the conveying rack 231, the connecting frame 22 is arranged close to the ground, and the connecting frame 22 is used for receiving the metal sheet to prevent the metal sheet from being damaged by dragging on the ground.

[0039] Referring toFigure 1 and Figure 2 The first conveying roller 232 and the second conveying roller 233 are both rotatably connected to the conveying frame 231 about their own axes. The rotation axes of the first conveying roller 232 and the second conveying roller 233 are both parallel to the axis of the guiding roller 214. A space between the first conveying roller 232 and the second conveying roller 233 is for the metal sheet to pass through. The motor housing of the second driving motor 234 is fixedly connected to the outer wall of the conveying frame 231, and the motor shaft of the second driving motor 234 is coaxially and fixedly connected to one end of the first conveying roller 232.

[0040] The proximity switch 235 is fixedly connected to one end of the conveying frame 231 facing the connecting frame 22. The proximity switch 235 is electrically connected to the second driving motor 234. The proximity switch 235 is connected with a distance sensor 2351. The distance sensor 2351 is used to detect the distance from the detection point to the metal sheet. If the detected value is less than the preset value, it indicates that the metal sheet between the loading rack 211 and the conveying frame 231 is too long, and the metal sheet abuts against the connecting frame 22 under the action of gravity, and the second driving motor 234 stops working.

[0041] Refer to Figure 2 As shown in, the feeding member 24 is arranged on the side of the conveying member 23 away from the connecting frame 22. The feeding member 24 includes a feeding frame 241 and a feeding roller 242. The feeding frame 241 is fixedly connected to the ground. The feeding roller 242 is rotatably connected to the feeding frame 241 about its own axis. The rotation axis of the feeding roller 242 is parallel to the axis of the guiding roller 214. The raw material is wound around the outer periphery of the feeding roller 242.

[0042] Refer to Figure 2 As shown in, the blanking assembly 3 includes a sliding seat 31, a blanking frame 32, a guiding rod 33, a limiting rod 34 and a communicating pipe 35. The sliding seat 31 is fixedly connected to the ground. The upper end of the sliding seat 31 is fixedly connected with a guide rail 311. The length direction of the guide rail 311 is parallel to the length direction of the blanking port 12. The height of the blanking frame 32 is less than the height of the blanking port 12. The blanking frame 32 is slidably connected to the guide rail 311. The sliding direction of the blanking frame 32 is parallel to the length direction of the guide rail 311. The blanking frame 32 is used for stacking fins. There are multiple blanking frames 32, and the multiple blanking frames 32 are arranged along the length direction of the guide rail 311. When a blanking frame 32 is stacked full of fins, slide the blanking frame 32 so that an empty blanking frame 32 receives the material.

[0043] Refer to Figure 3, the lower end of the guide rod 33 is fixedly connected to the upper end of the blanking frame 32. The length direction of the guide rod 33 is vertical. There are four guide rods 33. The axial connection lines of the four guide rods 33 in the same plane are set as a rectangle. The guide rod 33 is used to pass through the fins. The lower end of the limiting rod 34 is fixedly connected to the upper end of the blanking frame 32. The length direction of the limiting rod 34 is vertical. There are four limiting rods 34. The four limiting rods 34 are arranged on the outer periphery of the guide rod 33. The limiting rod 34 is used to limit the fins. The upper end of the blanking frame 32 is provided with a plurality of buffer ports 321. The plurality of buffer ports 321 are evenly spaced. The outer wall of the blanking frame 32 is provided with a ventilation port 322. The ventilation port 322 communicates with the buffer port 321.

[0044] Refer to Figure 3 and Figure 4 , the suction assembly 4 is arranged directly above the blanking assembly 3. The suction assembly 4 includes an air chamber 41, a suction plate 42, a suction fan 43, a filter screen 44, a limiting member 45, a control member 46 and a gas supplementing member 47.

[0045] Refer to Figure 2 and Figure 4 , the air chamber 411 is provided in the air chamber 41. The lower end of the air chamber 41 is provided with an air inlet 412. The upper end of the air chamber 41 is provided with an air outlet 413. Both the air inlet 412 and the air outlet 413 communicate with the air chamber 411. The suction plate 42 is fixedly connected to the inner wall of the air inlet 412. The height of the suction plate 42 is greater than the height of the blanking port 12. After the fins are discharged from the blanking port 12, they abut against the suction plate 42. The suction plate 42 is provided with a suction port 421. The suction port 421 communicates with the air chamber 411. The suction port 421 is used to generate negative pressure to adsorb the fins. There are a plurality of suction ports 421. The plurality of suction ports 421 are arranged in an array on the suction plate 42.

[0046] Refer to Figure 3 and Figure 4 , the suction fan 43 is fixedly connected to the upper end of the air chamber 41. The inlet of the suction fan 43 communicates with the air outlet 413. The outlet of the suction fan 43 is connected to the ventilation port 322 through a connecting pipe 35. The filter screen 44 is fixedly connected to the inner wall of the suction port 421. There are a plurality of filter screens 44. The filter screens 44 are arranged in one-to-one correspondence with the suction ports 421.

[0047] Refer to Figure 5, the limiting member 45 includes a limiting plate 451 and a bolt 452. The lower end of the air suction plate 42 is provided with a threaded groove 422. There are multiple threaded grooves 422, and the multiple threaded grooves 422 are evenly spaced along the moving direction of the fin. The limiting plate 451 is slidably connected to the lower end of the air suction plate 42. The limiting plate 451 is provided with a strip-shaped opening 4511. The length of the strip-shaped opening 4511 is parallel to the moving direction of the fin. The bolt 452 passes through the strip-shaped opening 4511 and is threadedly connected to the groove wall of the threaded groove 422. The sliding direction of the limiting plate 451 is parallel to the moving direction of the fin. The limiting plate 451 is used to limit the fin and cover part of the air suction port 421.

[0048] Referring to Figure 4 , the control member 46 includes a covering plate 461, a piston plate 462, a connecting rod 463, a stop bar 464, a mounting plate 465 and a return spring 466. The covering plate 461 is slidably connected to the upper end of the air suction plate 42. The sliding direction of the covering plate 461 is parallel to the sliding direction of the limiting plate 451. The covering plate 461 is provided with through openings 4611. There are multiple through openings 4611, and the multiple through openings 4611 are evenly spaced along the length direction of the covering plate 461. The covering plate 461 is used to cover the air suction port 421. The through openings 4611 are used to communicate with the air suction port 421. The covering plate 461 slides to control the communication and misalignment between the through openings 4611 and the air suction port 421.

[0049] One end of the air storage chamber 41 is provided with a piston port 413. The piston plate 462 is slidably connected to the inner wall of the piston port 413. The sliding direction of the piston plate 462 is parallel to the sliding direction of the covering plate 461. One end of the connecting rod 463 is fixedly connected to the piston plate 462, and the other end of the connecting rod 463 is fixedly connected to the covering plate 461. The stop bar 464 is fixedly connected to the inner wall of the piston port 413. There are two stop bars 464, and the two stop bars 464 are respectively arranged on both sides of the piston plate 462. The inner wall of the piston port 413 is fixedly connected with a positioning bar 4131, and the outer wall of the piston plate 462 is provided with a positioning groove 4621. The positioning bar 4131 is slidably embedded in the positioning groove 4621.

[0050] Referring to Figure 4 , the mounting plate 465 is fixedly connected to the inner wall of the air storage chamber 41. The mounting plate 465 is arranged between the piston plate 462 and the covering plate 461. One end of the return spring 466 is fixedly connected to the mounting plate 465, and the other end of the return spring 466 is fixedly connected to the piston plate 462.

[0051] The air supplementing component 47 includes a sliding plate 471, a first rack 472, a third gear 473, and a second rack 474. An air supplementing port 414 is provided at one end of the air storage chamber 41 away from the piston port 413. The sliding plate 471 is slidably connected to the inner wall of the air storage chamber 41. The sliding plate 471 is used to control the opening and closing of the air supplementing port 414. The sliding direction of the sliding plate 471 is vertical. The first rack 472 is fixedly connected to the upper end of the covering plate 461. The third gear 473 is arranged above the first rack 472. The third gear 473 is rotatably connected to the inner wall of the air storage chamber 41 about its own axis. The rotation axis of the third gear 473 is horizontal and perpendicular to the moving direction of the fin. The second rack 474 is fixedly connected to one end of the sliding plate 471 facing away from the air supplementing port 414. Both the first rack 472 and the second rack 474 are engaged with the third gear 473.

[0052] The implementation principle of the hydraulic forming production line for cooler fins in an embodiment of the present application is as follows: The conveying assembly 2 conveys the metal sheet through the feeding port 11 of the punching machine 1. The punching machine 1 processes the metal sheet into fins and cuts them off. The fins are discharged from the discharging port 12. The suction plate 42 adsorbs the fins, and the limiting member 45 limits the fins. When the fins completely leave the punching machine 1, the fins cover the suction port 421, causing the intake air to be blocked, and the air pressure in the air storage chamber 41 further decreases. The piston plate 462 overcomes the obstruction and moves, and pushes the covering plate 461 to move further to cover the suction port 421. The fins are no longer affected by the negative pressure of the suction port 421, and the fins fall onto the blanking rack 32. At the same time, the sliding plate 471 slides, the air supplementing port 414 opens to supplement air to the air storage chamber 41, the air pressure in the air storage chamber 41 increases, the piston plate 462 resets, and the suction port 421 opens, and it is used repeatedly in a cycle.

[0053] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hydraulic forming production line for cooler fins, characterized in that: It includes a stamping machine (1) and a suction assembly (4). Feeding ports (11) and discharging ports (12) are respectively arranged at both ends of the stamping machine (1). The feeding port (11) is used for the passage of metal sheets. The stamping machine (1) is used to process the metal sheets into fins. The discharging port (12) is used for the passage of fins. The suction assembly (4) includes a suction plate (42). The height of the suction plate (42) is greater than that of the discharging port (12). A suction port (421) is arranged at the lower end of the suction plate (42). The suction port (421) is used to generate negative pressure to adsorb the fins.

2. The hydraulic forming production line for cooler fins according to claim 1, characterized in that: The suction assembly (4) further includes an air chamber (41). The air chamber (41) is provided with an air cavity (411). An air inlet (412) is arranged at the lower end of the air chamber (41). An air outlet (413) is arranged on the outer wall of the air chamber (41). Both the air inlet (412) and the air outlet (413) communicate with the air cavity (411). The suction plate (42) is fixedly connected to the inner wall of the air inlet (412). The suction port (421) communicates with the air cavity (411). There are multiple suction ports (421). The multiple suction ports (421) are arranged in an array on the suction plate (42).

3. The hydraulic forming production line for the cooler fins according to claim 2, wherein: It further includes a discharging rack (32) and a guiding rod (33). The height of the discharging rack (32) is less than that of the discharging port (12). The discharging rack (32) is used for stacking the fins. The lower end of the guiding rod (33) is fixedly connected to the discharging rack (32). The length direction of the guiding rod (33) is vertical.

4. A hydraulic forming production line for cooler fins according to claim 3, characterized in that: It further includes a connecting pipe (35). A buffer port (321) is arranged at the upper end of the discharging rack (32). One end of the connecting pipe (35) communicates with the air outlet (413). The other end of the connecting pipe (35) communicates with the buffer port (321).

5. A hydraulic forming production line for cooler fins according to claim 3, characterized in that: The suction assembly (4) further includes a limiting plate (451). The limiting plate (451) is slidably connected to the lower end of the suction plate (42). The sliding direction of the limiting plate (451) is parallel to the moving direction of the fins. The limiting plate (451) is used for limiting the fins.

6. A hydraulic forming production line for cooler fins according to claim 5, characterized in that: The suction assembly (4) further includes a covering plate (461). The covering plate (461) is slidably connected to the upper end of the suction plate (42). The covering plate (461) is used for covering the suction port (421). The covering plate (461) is provided with through holes (4611). There are multiple through holes (4611). The multiple through holes (4611) are evenly spaced along the moving direction of the fins.

7. A hydraulic forming production line for cooler fins according to claim 6, characterized in that: The suction assembly (4) further includes a piston plate (462) and a connecting rod (463). A piston port (413) is arranged on the outer wall of the air chamber (41). The piston plate (462) is slidably connected to the inner wall of the piston port (413). One end of the connecting rod (463) is fixedly connected to the piston plate (462). The other end of the connecting rod (463) is fixedly connected to the covering plate (461).

8. A hydraulic forming production line for cooler fins according to claim 7, characterized in that: The suction assembly (4) further includes a mounting plate (465) and a return spring (466). The mounting plate (465) is disposed between the piston plate (462) and the covering plate (461). One end of the return spring (466) is fixedly connected to the piston plate (462), and the other end of the return spring (466) is fixedly connected to the mounting plate (465).

9. A hydraulic forming production line for cooler fins according to claim 8, characterized in that: The suction assembly (4) further includes a sliding plate (471). An air supplement port (414) is provided at one end of the air storage chamber (41) away from the piston port (413). The sliding plate (471) is slidably connected to the inner wall of the air storage chamber (41), and the sliding plate (471) is used to cover the air supplement port (414).

10. The hydraulic forming production line of the cooler fin according to claim 9, characterized in that: The suction assembly (4) further includes a first rack (472), a third gear (473), and a second rack (474). The first rack (472) is fixedly connected to the upper end of the covering plate (461). The third gear (473) is disposed above the first rack (472). The third gear (473) is rotatably connected to the inner wall of the air storage chamber (41) about its own axis. The rotation axis of the third gear (473) is horizontal. The second rack (474) is fixedly connected to one end of the sliding plate (471) facing away from the air supplement port (414). Both the first rack (472) and the second rack (474) are engaged with the third gear (473), and the sliding direction of the sliding plate (471) is vertical.

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